WO2025110164A1 - Machining device and pattern formation method - Google Patents

Abstract

The present invention makes it possible to appropriately machine an object to be machined.　A control unit 12 of a cutting plotter 1 forms a pattern PT1 through a step for drawing a linear first reference line Ls1 on a surface of an object T placed on a table 2, a step for using a tool 8 to form, on either side sandwiching the first reference line Ls1, a cut line CLa and a cut line CLb extending in a direction intersecting the first reference line Ls1 at a prescribed angle, and a step for forming a plurality of combinations of the cut lines CLa, CLb at a prescribed interval c in a direction along the first reference line Ls1.

Description

Processing device and pattern forming method

The present invention relates to a processing device and a method for forming a pattern.

A cutting plotter is a processing device that forms cut lines in a workpiece or forms V-grooves in the workpiece by pressing a cutting tool (blade) against the workpiece and moving it relative to the workpiece.
For example, when the object to be processed is a label sticker whose adhesive surface is covered with release paper, a cutting plotter forms a cut line on the label sticker on which information such as letters or designs is printed, surrounding the area of the letters or designs.

The cut line is formed by displacing the cutting tool relative to the workpiece placed on the table in two horizontal directions (X direction, Y direction) along the table surface and one vertical direction (Z direction).

Some inkjet printing devices have a mechanism for displacing a carriage on which an inkjet head is mounted in the Y direction, and another mechanism for displacing the carriage in the X direction.
In this inkjet printing device, the displacement of the inkjet head in the Y direction associated with the displacement of the carriage in the Y direction and the displacement of the medium in the X direction are controlled to relatively displace the inkjet head and the medium on the table in two directions (X direction and Y direction). At this time, the inkjet printing device prints information such as characters and patterns on the medium by ejecting ink droplets from the inkjet head toward the medium (for example, see Patent Document 1).

JP 2019-181916 A

By mounting the cutting tool (blade) on the carriage instead of the inkjet head, the cutting tool and the workpiece on the table can be displaced relative to each other in the X and Y directions.

Here, when the cutting tool is displaced in the Y direction to form a cut line, it is necessary to change the orientation of the cutting edge when the tool is displaced to one side in the Y direction and when it is displaced to the other side.
If the orientation of the cutting edge is different when the tool is displaced to one side and when it is displaced to the other side, the cutting line formed may be misaligned, which may affect the processing of the workpiece. The orientation of the cutting edge is determined by the mounting state of the tool. Therefore, it is preferable to be able to check the mounting state of the tool.
In addition to such requirements, the actions and effects derived from each configuration disclosed in the "Form for implementing the invention" described below, which cannot be obtained with conventional techniques, are also based on the problems that the present invention aims to solve.

The present invention relates to
(1) a machining tool that is rotatable about an axis perpendicular to a mounting surface of the table;
a drive mechanism for displacing the tool relative to the table;
A control unit that controls an operation of the drive mechanism and processing by the tool,
The control unit is capable of forming a first pattern for confirming an attachment state of the tool,
The formation of the first pattern includes:
Drawing a linear first reference line on a surface of an object placed on the table;
forming, using the tool, a first line and a second line extending in a direction intersecting the first reference line at a predetermined angle on both sides of the first reference line;
forming a plurality of combinations of the first line and the second line at predetermined intervals in a direction along the first reference line;
The processing device is configured to include the following.

With this configuration, the presence or absence of a defect in the attachment state of the tool can be visually confirmed from the positional relationship between the first reference line in the formed first pattern and the first and second lines.
This allows the tool to be properly attached if there is a problem with the attachment of the tool by adjusting the attachment of the tool.

(2) a processing tool that is rotatable about an axis perpendicular to the mounting surface of the table;
a drive mechanism for displacing the tool relative to the table;
A control unit that controls an operation of the drive mechanism and processing by the tool,
The control unit is capable of forming a first pattern and a second pattern for checking an attachment state of the tool,
The formation of the first pattern includes:
Drawing a linear first reference line on a surface of an object placed on the table;
forming, using the tool, a first line and a second line on either side of the first reference line, the first line and the second line extending in a direction intersecting the first reference line at a predetermined angle,
The formation of the second pattern includes:
Drawing a linear second reference line on a surface of the object placed on the table;
and forming a third line and a fourth line on both sides of the second reference line by using the tool.

With this configuration, in addition to checking the tool installation state using the first pattern, it is possible to visually check whether there is a problem with the tool installation state from the positional relationship between the second reference line in the second pattern and the third and fourth lines.
This allows the tool to be properly attached if there is a problem with the attachment of the tool by adjusting the attachment of the tool.

(3) The control unit is capable of forming a third pattern for confirming an attachment state of the tool,
The formation of the third pattern includes:
forming, on a surface of the object placed on the table, a third reference line which is a pair of straight lines parallel to each other, and a fourth reference line which is a pair of straight lines parallel to each other and intersects the pair of third reference lines at a predetermined angle;
Using a reference point within an area surrounded by the pair of third reference lines and the pair of fourth reference lines as a reference,
The processing apparatus is configured to include a step of forming, using the tool, a fifth line and a sixth line extending parallel to the third reference line on both sides of the reference point between the pair of third reference lines, and further forming, using the tool, a seventh line and an eighth line extending parallel to the fourth reference line on both sides of the reference point between the pair of fourth reference lines.

With this configuration, in addition to checking the attachment state of the tool using the first and second patterns, it is possible to check the attachment state of the tool using the third pattern.
Specifically, the presence or absence of a defect in the tool installation condition can be visually confirmed from the positional relationship between a pair of parallel third reference lines and the fifth and sixth lines, and the positional relationship between a pair of parallel fourth reference lines and the seventh and eighth lines.
This allows the tool to be properly attached if there is a problem with the attachment of the tool by adjusting the attachment of the tool.

(4) The control unit of the processing device is configured to form the second pattern, the first pattern, and the third pattern in this order.

By forming the confirmation pattern in the above order, the tool installation status can be properly checked.

(5) The control unit
The processing apparatus is configured to carry out a step of rotating the tool around the axis by a predetermined angle at a time to adjust the orientation of the tool.

This configuration allows the tool orientation to always be changed by the same angle, reducing variation between operators when adjusting the tool's mounting state. This is expected to standardize the work required to adjust the tool's mounting state and reduce the amount of time required to do so.

(6) the control unit performs formation of the first pattern a plurality of times;
The control unit is configured to set the predetermined angle to a smaller angle as the number of times the first pattern is formed increases when adjusting the orientation of the tool after the first pattern is formed.

When configured in this way, the tool orientation is repeatedly adjusted while gradually narrowing the specified angle by which the tool is rotated to check and adjust the tool attachment state. This is expected to optimize the tool attachment state and reduce the time required for optimization.

The present invention relates to
(7) a processing tool that is rotatable about an axis perpendicular to the mounting surface of the table;
a driving mechanism for relatively displacing the tool with respect to the table, in a processing apparatus having the tool, the method for forming a pattern on an object for confirming an attachment state of the tool, the method comprising:
The first pattern,
Drawing a linear first reference line on a surface of the object placed on the table;
forming, using the tool, a first line and a second line extending in a direction intersecting the first reference line at a predetermined angle on both sides of the first reference line;
The method for forming a pattern includes a step of forming a plurality of combinations of first lines and second lines at predetermined intervals in a direction along the first reference line.

With this configuration, the presence or absence of a defect in the attachment state of the tool can be visually confirmed based on the positional relationship between the first reference line in the formed first pattern and the first and second lines.
This allows the tool to be properly attached if there is a problem with the attachment of the tool by adjusting the attachment of the tool.

(8) The second pattern is
Drawing a linear second reference line on a surface of the object placed on the table;
and forming a third line and a fourth line on both sides of the second reference line.

With this configuration, in addition to checking the tool installation state using the first pattern, the presence or absence of a defect in the tool installation state can be visually checked from the positional relationship between the second reference line in the second pattern and the third and fourth lines.
This allows the tool to be properly attached if there is a problem with the attachment of the tool by adjusting the attachment of the tool.

(9) drawing a third pattern on the surface of the object placed on the table by drawing a pair of third reference lines which are parallel to each other and a pair of fourth reference lines which are parallel to each other in a mutually intersecting positional relationship;
The method for forming a pattern includes the steps of: using a reference point within an area surrounded by the pair of third reference lines and the pair of fourth reference lines as a reference point, forming a fifth line and a sixth line extending parallel to the third reference line on both sides of the reference point between the pair of third reference lines using the tool; and further forming a seventh line and an eighth line extending parallel to the fourth reference line on both sides of the reference point between the pair of fourth reference lines using the tool.

With this configuration, in addition to checking the attachment state of the tool using the first and second patterns, it is possible to check the attachment state of the tool using the third pattern.
Specifically, the presence or absence of a defect in the tool installation condition can be visually confirmed from the positional relationship between a pair of parallel third reference lines and the fifth and sixth lines, and the positional relationship between a pair of parallel fourth reference lines and the seventh and eighth lines.
This allows the tool to be properly attached if there is a problem with the attachment of the tool by adjusting the attachment of the tool.

The present invention allows you to check the attachment status of the tool.

FIG. 1 is a diagram illustrating a cutting plotter. FIG. 2 is a diagram illustrating a cutting plotter. FIG. 3 is a diagram illustrating a cutting plotter. FIG. 4 is a diagram illustrating the fixed unit. FIG. 5 is a diagram illustrating a pen holder. FIG. 6 is a diagram for explaining an example of use of the slots of the machining unit. FIG. 7 is a diagram for explaining the tool. FIG. 8 is a diagram for explaining the tool. FIG. 9 is a diagram illustrating the direction and inclination of the blade portion. FIG. 10 is a functional block diagram of the cutting plotter. FIG. 11 is a diagram for explaining the patterns. FIG. 12 is a diagram for explaining the patterns. FIG. 13 is a diagram for explaining the patterns. FIG. 14 is a diagram for explaining the patterns. FIG. 15 is a diagram for explaining adjustment of the blade direction. FIG. 16 is a flowchart illustrating the process of checking whether there is a problem with the support state of the blade. FIG. 17 is a diagram illustrating a tool according to a modified example. FIG. 18 is a diagram for explaining a pattern in the case of a blade according to a modified example. FIG. 19 is a diagram for explaining a pattern in the case of a blade according to a modified example. FIG. 20 is a diagram for explaining a pattern in the case of a blade according to a modified example.

Hereinafter, an embodiment of the present invention will be described using a cutting plotter 1 (processing device) as an example.
1 to 3 are diagrams illustrating a cutting plotter 1. FIG.
Fig. 1(a) is a perspective view of a cutting plotter 1. Fig. 1(b) is an enlarged view of the periphery of a processing unit 4 of the cutting plotter 1.
Fig. 2 is a plan view seen from above of the cutting plotter 1. Fig. 3 is a schematic cross-sectional view of the cutting plotter 1 taken along line AA in Fig. 2.

In addition, the symbol "Y" in each drawing indicates the main scanning direction (first direction) in the cutting plotter 1. The symbol "X" indicates the sub-scanning direction (second direction) in the cutting plotter 1. The symbol "Z" indicates the vertical direction (axial direction) based on the installation state of the cutting plotter 1.
In the following description, the positional relationship of each component of the cutting plotter 1 will be described using the X, Y, and Z directions in FIG. 1 as necessary.
The X direction and the Y direction are directions perpendicular to each other and are horizontal directions along the upper surface of the table 2. The Z direction is a vertical line direction based on the installation state of the cutting plotter 1, and is a direction perpendicular to both the X direction and the Y direction.

As shown in Figures 1 to 3, the cutting plotter 1 has a table 2 on which an object T is placed, a support beam 3 (Y bar) arranged horizontally above the table 2 in a direction along the Y direction, a processing unit 4 supported by the support beam 3 and movable in the longitudinal direction (Y direction) of the support beam 3, a drive mechanism 5 (5A, 5B) that moves the support beam 3 in the X direction, and a drive mechanism 5C that moves the processing unit 4 back and forth in the Y direction along the support beam 3.

The table 2 shown in FIG. 1 is configured by connecting a table 2A equipped with a control panel 11 and an extension table 2B not equipped with the control panel 11 in the X direction.
In addition, Fig. 1 illustrates an example in which there is one expansion table 2B. The total number of expansion tables 2B is not limited to the embodiment shown in Fig. 1. The table 2 of the cutting plotter 1 can be expanded in the X direction according to the size of the target object T by increasing the total number of tables 2B to be connected.
In the following description, unless there is a need to distinguish between Tables 2A and 2B, they will simply be referred to as Table 2.

As shown in Fig. 2, the table 2 (2A, 2B) has a rectangular shape when viewed from above. As shown in Fig. 3, the table 2 has a table base 20 with an open top and a table top 21 that covers the opening of the table base 20.
The table base 20 has a bottom wall portion 201 and a peripheral wall portion 202 surrounding the outer periphery of the bottom wall portion 201. In the table 2, when the opening of the table base 20 is sealed with the table top 21, an internal space 23 is formed between the table base 20 and the table top 21.

The upper surface of the table top 21 is the surface 21a on which the object T is placed. The object T is a processing object such as cardboard, a medium on which information such as letters or patterns is printed, a resin medium such as acrylic, a paper container, a channel material for a signboard, or a dedicated medium for forming a pattern for checking the attachment state of the tool 8 (blade 10).

The support surface 21a has multiple suction holes 210 (communication holes) over almost the entire surface. The internal space 23 of the table 2 is connected to the outside via the suction holes 210 provided in the table top 21.

As shown in Fig. 3, a connector 32 is fixed to the bottom wall portion 201 of the table base 20. A switching valve 33 is provided in a pipe 31 connected to the connector 32. In Fig. 3, the two connectors 32, 32 are connected via one switching valve 33 to a pipe 35 in which a blower 34 is provided.
The object T placed on the table 2 is attracted to the support surface 21a of the table 2 by the suction force generated by driving the blower 34, and is held in a state in which movement in the horizontal direction (X direction, Y direction) and the vertical direction (Z direction) is restricted.
2, in this embodiment, one table 2 is provided with four connectors 32, and communication between each connector 32 and the blower 34 is switched on and off by operating a switching valve 33. Therefore, the area on the table 2 where negative pressure is generated can be changed depending on the size of the object T placed on the table 2.

In the cutting plotter 1, the suction force generated on the table 2 restricts the movement of the object T in the horizontal directions (X direction, Y direction) and the vertical line (Z direction), and the object T is machined using a tool held by the machining unit 4, which will be described later.

2 and 3, the support beam 3 that supports the processing unit 4 is disposed horizontally above the table 2. The support beam 3 has a length that crosses the table 2 in the Y direction.
A processing unit 4 is mounted on the support beam 3. The processing unit 4 is supported on the support beam 3 so as to be movable in the longitudinal direction (Y direction) of the support beam 3. A drive mechanism 5C including a resin belt V and a motor Ma for moving the belt V is attached to the support beam 3, and the processing unit 4 moves forward and backward in the Y direction by being driven by the drive mechanism 5C.

3, the support beam 3 has a pair of support columns 39, 39. The support columns 39, 39 are located on both sides of the table 2 in the Y direction, and cross the sides of the table base 20 below in the Z direction.
The lower ends of the support columns 39, 39 are connected to sliders 55, 55 of the drive mechanisms 5 (5A, 5B), respectively.

In the cutting plotter 1, the support beam 3 is moved in the X direction by drive mechanisms 5A, 5B provided on both sides of the lower side of the table base 20.
Here, the drive mechanisms 5A and 5B have the same basic configuration, so in the following, the configuration of the drive mechanism 5A will be described as a representative example.

The drive mechanism 5A has a holder 51, a guide rail 52, a rack rail 53, a slider 55, and a motor M.
The holder 51 is a columnar member fixed to the lower part of the table base 20. In Fig. 2, the holder 51 is located on the rear side of the area indicated by the cross-hatched lines on the table 2. The holder 51 is provided in a range in the X direction extending from one side edge 2a of the table 2A to the other side edge 2b of the table 2B.

As shown in FIG. 3, guide rail 52 and rack rail 53 are provided at a distance in the Y direction below holder 51. In this state, rack rail 53 is positioned so that the side with which gear 57 engages protrudes further toward the center of table 2 than holder 51. Rack rail 53 is fixed to the bottom of holder 51 by bolts (not shown).

The guide rail 52 is fixed to the lower part of the holder 51 by bolts (not shown).
A concave rail member 56 fixed to the upper surface of the slider 55 engages with the guide rail 52 from below in the Z direction. The rail member 56 engages with the guide rail 52 so as to be movable in the longitudinal direction of the guide rail 52 while being prevented from falling off the guide rail 52.

The rail member 56 is fixed to the upper surface of a plate-shaped slider 55. The slider 55 is connected to the lower part of the support column 39.
The slider 55 has a length in the Y direction that crosses the lower side of the holder 51 toward the center of the table 2. The motor M is fixed to the lower surface of the slider 55, and the shaft of the motor M passes upward through the notch 55c. The upper end side of the shaft is connected to a gear 57. The gear 57 meshes with the side surface of the rack rail 53.

In the cutting plotter 1, when the gear 57 is rotated by the output of the motor M, the gear 57 moves along the rack rail 53 in its longitudinal direction (X direction).
The motor M to which the gear 57 is connected is fixed to the slider 55 together with the support pillar 39 of the support beam 3. Therefore, when the motor M is driven, the support beam 3 supported by the support pillar 39 moves in one direction (the up-down direction in FIG. 2 ) determined according to the rotation direction of the shaft (not shown) of the motor M.

As shown in FIG. 3, the cutting plotter 1 has driving mechanisms 5A and 5B on both sides of the table 2 in the Y direction. By driving these driving mechanisms 5A and 5B in a synchronized manner, the support beam 3 moves in the X direction.

As shown in FIG. 1B , the processing unit 4 has a main body portion 41 supported by the support beam 3 .
On one side (the control panel 11 side) of the main body 41, there are provided a fixing unit 42 and a holder unit 43 having three slots 44 (44a to 44c).
The fixed unit 42 and the holder unit 43 are adjacent to each other in the Y direction. An upper surface 43a of the holder unit 43 is located lower than the fixed unit 42 in the Z direction.
In the holder unit 43, the slots 44a to 44c are provided closer to the fixed unit 42, and the slots 44a to 44c are aligned in the Y direction.

FIG. 4 is a diagram illustrating the fixing unit 42. FIG. 5 is a diagram illustrating the pen holder 6. FIG. 4 shows the pen holder 6 attached to the jig 40. FIG. 5 shows the pen holder 6 as viewed diagonally from below.

1B, the fixing unit 42 has an area on the holder unit 43 side that bulges in the X direction. A camera housing section 421 is provided below this bulging area. A camera unit (not shown) is housed inside the camera housing section 421, facing downward in the Z direction.
A support unit 422 that supports the jig 40 is provided next to the camera housing portion 421. The jig 40 is a jig for mounting the pen holder 6.

As shown in FIG. 4, the jig 40 has an annular mounting portion 401 and a positioning screw 402. The mounting portion 401 is fixed to the front of the support unit 422. A holder 403 for the screw 402 is attached to the front of the mounting portion 401. The shaft portion (not shown) of the screw 402 passes through the holder 403 and the mounting portion 401. In conjunction with the rotation of the screw 402, the tip of the shaft portion of the screw 402 can appear and disappear from the inner circumference of the mounting portion 401.

The cylindrical base 61 of the pen holder 6 is inserted from above in the Z direction into the mounting part 401. In this state, the tip of the shaft of the screw 402 is pressed against the outer periphery of the base 61, thereby fixing the pen holder 6 to the mounting part 401.

The pen holder 6 is a jig that holds a writing implement such as a drafting pen. The pen holder 6 has a cylindrical base 61, a support 62 that supports the pen P, a lock nut 63, and a cap 65.

In the penholder 6, a support part 62 that supports the pen P and a base part 61 are capable of relative rotation about a common axis Xp. In the penholder 6, when the support part 62 is rotated relative to the base part 61, the pen P supported by the support part 62 is displaced in the direction of the axis Xp, and the protruding height of the pen tip P1 from the lower end 61a of the base part 61 can be adjusted.
In the pen holder 6, after adjusting the protruding height of the pen tip P1, the lock nut 63 is tightened so that the pen P with the adjusted protruding height can be positioned.

FIG. 6 is a diagram for explaining an example of use of the slots 44a to 44c of the machining unit 4. In FIG.
As shown in FIG. 1B, in the holder unit 43 of the machining unit 4, unused slots 44a to 44c are aligned in the Y direction.
As shown in Fig. 6, the support units 7 (e.g., support units 7A and 7B) of the tool can be attached and detached to each of the slots 44a to 44c. In Fig. 6, the support unit 7A is attached to the slot 44a, and the support unit 7B attached to the slot 44b is shown in a position spaced apart from the processing unit 4.

The support unit 7B has an insertion leg 72 that is inserted into the slot 44b. The insertion leg 72 extends downward from the lower part of the main body 71. The main body 71 houses a motor for driving the tool, a lifting mechanism for the tool, and the like.
The support unit 7B is attached to the holder unit 43 by inserting the insertion legs 72 into the slots 44b, and the drive mechanism inside the main body 71 is connected to the power supply source.
The main body 71 has a range in the Z direction that extends to the front side of the insertion leg 72. A tool holder 74 is supported on the lower part of the main body 71 via a support member 73.
The tool holder 74 is provided on the front side of the main body 71 and oriented along the Z direction. The tool 8 is attached to the lower part of the tool holder 74.

6, a tool 8' for drilling holes is attached to the support unit 7A, and a tool 8 for supporting a blade 10 is attached to the support unit 7B.
The machining unit 4 has a plurality of slots 44 (44a to 44c) to which the tool support units 7 (7A, 7B) can be detachably attached. The tool 8 that holds the blade 10 is held in the support unit 7B.
Therefore, a plurality of tools with different uses can be installed in the processing unit 4. As a result, while the processing method can be performed using any of the tools already installed in the processing unit 4, there is no need to replace the tool every time the processing method is changed, so that the time required for tool replacement can be saved. In addition, by adjusting the positional accuracy of the tool when first installing it in the processing unit 4, there is no need to adjust the position of the tool every time the processing method is changed, so that even if the processing method is changed, the processing accuracy of the target object T can be ensured.

7 and 8 are diagrams for explaining the tool 8. FIG.
Fig. 7A is a front view of the tool 8 attached to the tool holder 74 of the support unit 7B. Fig. 7B is an enlarged view of the attachment portion 82 and its surroundings in the tool 8. Fig. 7C is a diagram for explaining the attachment of the blade holder 83 to the attachment portion 82.
Fig. 8(a) is a plan view of the tool 8 as viewed from the blade holder 83 side. Fig. 8(b) is a plan view of the blade 10.

In FIG. 7(a), only the tool 8 and tool holder 74 are shown in solid lines, and the other parts are shown in virtual lines. FIG. 8(a) corresponds to a view seen from the direction of the arrows A-A in FIG. 7(b). FIG. 8(b) shows a schematic diagram of the shape of the blade 10 when viewed from the same direction as FIG. 8(a).

7A and 7B, the tool 8 has a connecting portion 81 with the support unit 7B. The connecting portion 81 has a basic cylindrical shape. The connecting portion 81 is inserted into the lower portion of the tool holder 74 in the direction of the center line Xc, and is connected to a shaft (not shown) inside the tool holder 74 so as not to rotate relatively. A tool driving mechanism 5D (belt V, motor Mb) that rotates the shaft around the center line Xc of the tool holder 74, and a tool lifting mechanism 5E are provided inside the support unit 7B.
Therefore, by transmitting the output of the motor Mb to the shaft via the belt V, the tool 8 connected to the tool holder 74 rotates around the center line Xc.

The attachment portion 82 of the blade 10 is located below the connecting portion 81. The attachment portion 82 extends in a direction away from the connecting portion 81 along the center line Xc. In a side view, the attachment portion 82 is formed with an outer diameter smaller than that of the connecting portion 81. A mounting surface 821 for the blade 10 is formed on the lower end 82a side of the attachment portion 82.
The mounting surface 821 is a flat surface along the center line Xc in a side view. The mounting surface 821 is provided within a range of a predetermined height h821 from the lower end 82a of the mounting portion 82 to the connecting portion 81 side (the upper side in FIG. 7B ).

The plate-shaped base 101 of the blade 10 is disposed on the attachment surface 821 in a state where it is gripped between the blade holder 83 and the attachment surface 821 (see FIG. 7C).
As shown in Fig. 8, the base 101 of the blade 10 is a generally rectangular portion having a range that crosses the center line Xc. In the base 101, screw holes 101a, 101a are formed in an area on one side of the center line Xc (the right side in Fig. 8(b)). The screw holes 101a, 101a are provided at intervals in the direction of the center line Xc (the up-down direction in the figure).
The belt-shaped portion 102 is continuous with the other side (the left side in FIG. 8B ) of the center line Xc. The belt-shaped portion 102 extends from one side edge 101 b of the base portion 101 in the direction of the center line Xc in a direction away from the base portion 101 along the center line Xc.

The strip portion 102 has a tapered shape in which the width W102 narrows toward the cutting edge 10a. The strip portion 102 has a linear blade surface 103 (inclined surface) that intersects with the center line Xc on the side opposite to the center line Xc.
The cutting edge 10a of the band-shaped portion 102 is located a distance L102 away from the base portion 101 in the direction of the center line Xc.

The blade 10 is a plate-like member in which at least the base 101 has the same thickness T10 (see FIG. 7(c)). The shafts of the nuts Nt, Nt pass through the blade holder 83 and the screw holes 101a, 101a of the base 101 and screw into the mounting surface 821. The blade 10 is attached to the mounting part 82 while being held between the blade holder 83 and the mounting surface 821.

FIG. 9 is a diagram explaining the orientation and inclination of the blade 10. FIG. 9(a) is a diagram explaining the orientation of the blade 10 when forming a cut line on the object T. FIG. 9(a) is a schematic diagram explaining the orientation of the blade 10 when the tool 8 is viewed from the center line Xc side, and shows the state as viewed from the direction of the arrow A-A in FIG. 8(a). FIG. 9(b) is a schematic diagram explaining the state in which the blade 10 is inclined with respect to the movement direction of the blade 10 when forming a cut line on the object T (left and right direction in the figure: a straight line marked with 0°). FIG. 9(c) is a diagram explaining the arrangement of the cutting edge 10a of the blade 10 when the blade 10 is properly attached to the blade holder 83 of the tool 8. FIG. 9(d) is a diagram explaining the arrangement of the cutting edge 10a of the blade 10 when the blade 10 is attached to the attachment part 82 at an angle (tilted with respect to the center line Xc).

When forming a cut line in the target object T, the blade 10 is arranged so that the blade surface 103 of the blade 10 faces the moving direction of the tool 8 (the direction of the arrow in FIG. 8(a)). When this state is viewed from the direction of the arrow A-A in FIG. 8, the blade 10 is arranged so as to be oriented along the moving direction of the tool 8 (see FIG. 9(a)). The direction along the moving direction of the tool 8 at this time is the straight line indicated by 0° in the figure.

In the cutting plotter 1, when forming a cut line in the object T, the blade 10 is moved in one direction. For example, in FIG. 8(a), when forming a cut line from the right to the left, the blade 10 is moved from the right to the left in the figure with the cutting edge 10a inserted inside the object T. Then, in FIG. 8(a), when forming a cut line from the left to the right, the tool 8 is rotated 180° around the center line Xc to orient the cutting surface 103 of the blade 10 to the right in the figure, and then the blade 10 is moved from the left to the right in the figure with the cutting edge 10a inserted inside the object T.

Therefore, in order to properly form the cut line, the cutting edge 10a of the blade 10 must be positioned on the center line Xc (see Figure 9 (c)), and the blade 10 must be arranged along a straight line along the direction of movement of the tool 8 (the 0° straight line in Figure 9 (a)).
Here, the tool 8 is rotated around the center line Xc by the tool driving mechanism 5D. Therefore, immediately after replacing the tool 8 or the blade 10, the orientation of the blade 10 may not be along a straight line along the moving direction of the tool 8 due to an error caused by the replacement work or an error in the production of the replacement part, for example, the blade 10 (see FIG. 9B). Furthermore, the cutting edge 10a of the blade 10 may be positioned offset from the center line Xc (see FIG. 9D).

FIG. 10 is a functional block diagram of the cutting plotter 1.
In the cutting plotter 1 of this embodiment, the control unit 12 controls the processing of the target object T and forms a test pattern for checking whether there is a problem with the attachment state of the blade 10.
The machining control unit 121 drives the drive mechanisms 5A to 5C, the tool drive mechanism 5D, and the tool lifting mechanism 5E to perform machining operations on the target object T, operations for forming cut lines, and the like.

The pattern forming unit 122 executes a process for forming, on the surface of the target object T, check patterns (pattern PT1, pattern PT2, pattern PT3: see FIG. 2) for checking whether or not the blade 10 has a defect.
The angle adjustment unit 123 executes a process for adjusting the orientation of the tool 8 about the center line Xc (angular position about the center line Xc).

11 to 14 are diagrams for explaining patterns (patterns PT1, PT2, and PT3).
Fig. 11(a) is a conceptual diagram showing a method for forming pattern PT2 (second pattern). Fig. 11(b) and (c) are cross-sectional views explaining the process of forming pattern PT2. Fig. 11(d) is a schematic diagram showing pattern PT2 formed on object T when blade 10 is properly attached. Fig. 11(e) and (f) are schematic diagrams showing patterns PT2', PT2'' formed on object T when blade 10 is improperly attached.
Fig. 12A is a conceptual diagram showing a method for forming a pattern PT1 (first pattern), and Fig. 12B and Fig. 12C are cross-sectional views for explaining the process of forming the pattern PT1.
Fig. 13(a) is a schematic diagram showing a pattern PT1 formed on the target T when the blade 10 is properly attached. Fig. 13(b) and (c) are schematic diagrams showing patterns PT1', PT'' formed on the target T when the blade 10 is improperly attached.
In FIG. 12 and FIG. 13, pairs of cut lines CLa, CLb constituting a plurality of reference patterns are indicated by numbers (1 to n) in order to distinguish them from one another.
Fig. 14(a) is a conceptual diagram showing a method for forming a pattern PT3 (third pattern). Fig. 14(b) is a schematic diagram showing a pattern PT3 formed on the target T when the blade 10 is properly attached. Fig. 14(c) is a schematic diagram showing an example of a pattern PT3' formed on the target T when the blade 10 is not properly attached.

FIG. 15 is a diagram for explaining angle units used when adjusting the orientation (angular position about the center line Xc) of the tool 8 (blade 10) about the center line Xc.
FIG. 16 is a flowchart illustrating a process for checking whether or not the blade 10 has a defect.

In this embodiment, three test patterns are formed to check the support state of the blade 10 in the tool 8. Specifically, three patterns (pattern PT2, pattern PT1, pattern PT3) are formed, and the presence or absence of a defect in the attachment state of the blade 10 in the attachment portion 82 can be checked from the positional relationship of the reference line Ls (first reference line Ls1, second reference line Ls2, third reference line Ls3, fourth reference line Ls4) in the formed patterns to the cut line CL (first line, second line, fifth line, sixth line, seventh line, eighth line) and the cut mark CM (third line, fourth line).

First, as shown in FIG. 16, the pattern forming unit 122 of the control unit 12 forms a pattern PT2 on the surface of the target object T (step S101).

Specifically, a straight second reference line Ls2 extending in the Y direction is drawn on the surface of the target object T using the pen P held in the pen holder 6 (see FIG. 11(d)).
After drawing the second reference line Ls2, the cutting edge 10a is dropped on one side and the other side of the second reference line Ls2 in the X direction to form a pattern PT2 (see (d) of Figure 11) in which linear cut marks CMa (third line) and cut marks CMb (fourth line) are located on both sides of the second reference line Ls2.

In FIG. 11A, the center of the circular mark Mk is the position where the cutting edge 10 a is to be removed, and the direction of the arrow indicates the direction of the cutting edge 103 .
Here, the distance a from the second reference line Ls2 to the center of the circular mark Mk on one side (right side in the figure) of the second reference line Ls2 and the distance a to the center of the circular mark Mk on the other side (left side in the figure) are set to the same length.
Furthermore, the insertion depth h1 of the cutting edge 10a on one side into the target T and the insertion depth h1 of the cutting edge 10a on the other side into the target T are set to the same depth (see Figures 11(b) and 11(c)).
As a result, cut marks CMa and CMb are formed on one and the other sides of the second reference line Ls2.

Here, if the orientation of the blade 10 supported by the tool 8 is not aligned along the reference direction (the X direction in (a) of Figure 9), the cut marks CMa and CMb in the formed pattern will be inclined and not perpendicular to the second reference line Ls2.
For example, as shown in (b) of Figure 9, when the orientation of the blade 10 is slightly inclined with respect to the reference direction (X direction), a pattern PT2' (see (e) of Figure 11) is formed in which the cut marks CMa and CMb are inclined with respect to the second reference line Ls2.
Therefore, by checking the formed pattern PT2, it is possible to visually check whether the orientation of the blade 10 is appropriate, i.e., whether the blade 10 is appropriately supported by the tool 8.

Furthermore, if the cutting edge 10a of the blade 10 supported by the tool 8 is not oriented along the reference direction (center line Xc), the cut marks CMa and CMb in the formed pattern will be perpendicular to the second reference line Ls2, but their positions will be shifted.
For example, as shown in (d) of Figure 9, if the cutting edge 10a of the blade 10 is deviated from the center line Xc, the positions of the cut marks CMa and CMb will be shifted, resulting in the formation of a pattern PT2'' (see (f) of Figure 11) in which the cut marks CMa and CMb intersect with the second reference line Ls2.
Therefore, by checking the formed pattern PT2, it is possible to visually check whether the cutting edge 10a of the blade 10 is misaligned, i.e., whether the blade 10 is properly supported by the tool 8.

In this manner, in step S102 after the pattern PT2 is formed, it is determined whether or not adjustment of the mounting state of the blade 10 is necessary.
Incidentally, the determination as to whether or not the mounting state needs to be adjusted may be made, for example, by capturing an image of the formed pattern PT2 with a camera unit provided in the cutting plotter 1, and comparing the captured image with previously prepared learning data. In such a case, even the determination as to whether or not the mounting state of the blade 10 needs to be adjusted can be automated.

If it is determined in step S102 that the mounting state of the blade 10 needs to be adjusted, the operator of the cutting plotter 1 will correct the mounting state of the blade 10 by referring to the relative positional relationship between the cut marks CMa, CMb in the pattern PT2 and the second reference line Ls2. That is, in the case of FIG. 11(e), the orientation of the blade 10 viewed from the direction of the center line Xc is corrected, and in the case of FIG. 11(f), the inclination of the blade 10 is corrected so that the cutting edge 10a is positioned on the center line Xc.

Then, when the adjustment of the mounting state of the blade 10 is completed, the process returns to step S101, and the pattern PT2 is formed at another position on the object T.
Steps S101 to S103 are repeated until it is determined that no adjustment of the mounting state of the blade 10 is required based on the formed pattern PT2.

If it is determined in step S102 that adjustment of the mounting state of the blade 10 is not necessary (step S102, No), the pattern forming unit 122 of the control unit 12 forms a pattern PT1 on the surface of the target object T (step S104).

Specifically, a first reference line Ls1 that is a straight line along the Y direction is drawn on the surface of the target object T using a pen P held in a pen holder 6 (see FIG. 12(a)).
After drawing the first reference line Ls1, the cutting edge 10a is placed on one side of the first reference line Ls1 in the X direction to form a cut line CLa1 (first line) toward the first reference line Ls1 (see FIG. 12(b)).
Next, the cutting edge 10a is cut to the other side of the first reference line Ls1 in the X direction to form a cut line CLb1 (second line) toward the first reference line Ls1 (see FIG. 12(c)).
As a result, a reference pattern having a pair of cutlines CLa, CLb on both sides of the first reference line Ls1 in the X direction (a combination of a pair of cutlines CLa, CLb) is formed.

Then, the position is shifted in the Y direction by a predetermined distance c, and a new reference pattern is formed.
Specifically, cutlines CLa2 and CLb2 extending toward the first reference line Ls1 are further formed on both sides of the first reference line Ls1.
Thereafter, the movement in the Y direction is repeated a predetermined number of times to form a pattern PT1 (see FIG. 13A) having a predetermined number of cutlines CLan, CLbn (n: any integer) on both sides of a reference line Ls1.
Here, the pattern PT1 is a set of a plurality of reference patterns provided at positions shifted by a predetermined distance c in the Y direction.

In FIG. 12A, the center of the circular mark Mk is the position where the cutting edge 10 a is to be removed, and the direction of the arrow indicates the direction of the cutting edge 103 .
Here, the distance b to the center of the circular mark Mk on one side (the right side in the drawing) of the first reference line Ls1 is set to be the same as the distance b to the center of the circular mark Mk on the other side (the left side in the drawing). The distance b is longer than the distance a of the mark Mk shown in the above-mentioned pattern PT2 (b>a).

The insertion depth h1 of the cutting edge 10a on one side into the target T is the same as the insertion depth h1 of the cutting edge 10a on the other side into the target T (see FIGS. 12(b) and 12(c)).
As a result, cutlines CLa1 to CLan and CLb1 to CLbn (n is an arbitrary integer) are formed on one side and the other side of the first reference line Ls1.

Here, if the orientation of the blade 10 supported by the tool 8 is not aligned along the reference direction (the X direction in (a) of Figure 9), the cut lines CLa, CLb in the formed pattern PT1 will not be perpendicular to the first reference line Ls1 but will be inclined.
For example, as shown in (b) of Figure 9, when the orientation of the blade 10 is slightly inclined with respect to the reference direction (X direction), the cut lines CLa, CLb form a pattern PT1' inclined with respect to the first reference line Ls1 (see (b) of Figure 13).
Therefore, by checking the formed pattern PT1, it is possible to visually check whether the orientation of the blade 10 is misaligned, i.e., whether the blade 10 is properly supported by the tool 8.

In this manner, in step S105 after the formation of the pattern PT1, it is determined whether or not adjustment of the mounting state of the blade 10 (angle adjustment) is required.
Incidentally, the determination as to whether or not the mounting state needs to be adjusted may be made, for example, by taking an image of the formed pattern PT1 with a camera provided in the cutting plotter 1 and comparing the image obtained by taking the image with learning data prepared in advance. In such a case, even the determination as to whether or not the mounting state of the blade 10 needs to be adjusted can be automated.

If it is determined in step S105 that the mounting state of the blade 10 needs to be adjusted, the operator of the cutting plotter 1 will correct the mounting state of the blade 10 by referring to the relative positional relationship between the cut lines CLa1-CLan and CLb1-CLbn (n is any integer) in the pattern PT1' and the first reference line Ls1. That is, in the case of FIG. 13(b), the orientation of the blade 10 as viewed from the center line Xc is corrected.

Here, in this embodiment, when adjusting the angle of the blade 10, the angle of the blade 10 is adjusted in increments of a pre-prepared angle.
Fig. 15 is a diagram for explaining the angle adjustment of the blade 10. Fig. 15(a) is a diagram for explaining the relationship between a predetermined angle θa at the time of the first angle adjustment and the adjustment level. Fig. 15(b) is a diagram for explaining the relationship between a predetermined angle θb at the time of the second angle adjustment and the adjustment level.

The angle can be adjusted in a circumferential direction around a center line Xc based on the current orientation of the blade 10 in increments of a predetermined angle θa.
15A, the thick line in the figure indicates the current orientation of the blade 10. Although the blade tip 10a (not shown) of this blade 10 is located on the center line Xc, the orientation of the blade 10 is shifted from the expected direction (X direction in the figure) to the plus side (upper side in the figure).

In this embodiment, the orientation of the blade 10 can be changed in three steps (+1, +2, +3) on one circumferential side and three steps (-1, -2, -3) on the other circumferential side, each step being a determined angle θa, based on the current angle of the blade 10 (the straight line marked with "0" in the figure).
For example, an operator looking at cut lines CLa1 to CLa6 and CLb1 to CLb6 of pattern PT1' in Figure 13 (b) can see that it is necessary to adjust the orientation of blade 10 so as to move the ends of cut lines CLa1 to CLa6 on the first reference line Ls1 side downward in the figure, i.e., to rotate blade 10 around center line Xc.
Therefore, one of the predetermined change levels (-1, -2, -3) on the negative side in (a) of FIG. 15 is selected. As a result, the angle adjustment unit 123 (see FIG. 10) drives the tool driving mechanism 5D (see FIG. 10) provided in the support unit 7B to rotate the tool 8 around the center line Xc by an angle determined according to the selected adjustment level. For example, when "-1" in (a) of FIG. 15 is selected, the tool 8 is rotated by a predetermined angle (=θa) determined according to "-1". As a result, the orientation of the blade 10 in (a) of FIG. 15 rotates in the counterclockwise direction (CCW direction) around the center line Xc and approaches a straight line along the X direction. Incidentally, when "-2" is selected as the adjustment level, the tool 8 is rotated by a predetermined angle (=2×θa) determined according to "-1".

As an example, the adjustment level may be determined by capturing an image of the pattern PT1 formed by the camera unit of the cutting plotter 1 and comparing the captured image with learning data prepared in advance. In this case, even the adjustment of the angle of the blade 10 can be automated.

Then, when the adjustment of the angle of the blade 10 is completed (step S106, Yes), the pattern forming unit 122 of the control unit 12 forms the pattern PT1 in another area of the surface of the target object T (step S107).

The distances b and c of the pattern PT1 formed at this time are the same as the distances b and c of the pattern PT1 formed in step S104.
Then, it is determined whether or not adjustment of the mounting state (angle adjustment) of the blade 10 is necessary for the newly formed pattern PT1 (step S108).
This determination is the same as step S105 described above, so a description thereof will be omitted here.

If it is determined that the attachment state of the blade 10 needs to be adjusted (step S108, Yes), the operator of the cutting plotter 1 will correct the attachment state of the blade 10 by referring to the relative positional relationship between the cut lines CLa1-CLan and CLb1-CLbn (n is any integer) in the formed pattern PT1 and the first reference line Ls1. That is, in the cases of (b) and (c) in Figure 13, the orientation of the blade 10 as viewed from the center line Xc is corrected.

As described above, in this embodiment, when adjusting the mounting state (angle adjustment) of the blade 10, the angle of the blade 10 is adjusted in increments of a predetermined angle.
Furthermore, in this embodiment, the angle by which the blade 10 is rotated around the center line Xc is set to become smaller as the number of times the mounting state of the blade 10 is adjusted (the angle adjustment) increases.

For example, when the pattern PT1 formed after the first adjustment (angle adjustment) of the mounting state of the blade 10 is the pattern PT1'' shown in Fig. 13(c), the adjustment of the orientation of the blade 10 is performed in the circumferential direction around the center line Xc based on the current orientation of the blade 10, in increments of a predetermined angle θb. Here, the angle θb is set to an angle smaller than the above-mentioned θa.
When the adjustment level "-1" is selected in the first angle adjustment described above (FIG. 15(b)), and the pattern PT1 obtained in the second adjustment is the pattern PT'' shown in FIG. 13(c), the blade 10 is oriented as shown by the thick line in the figure. Although the cutting edge 10a (not shown) of this blade 10 is positioned on the center line Xc, the orientation of the blade 10 is shifted from the expected direction (X direction in the figure) to the negative side (downward in the figure).

In this embodiment, the orientation of the blade 10 can be changed in three steps (+1, +2, +3) on one circumferential side and three steps (-1, -2, -3) on the other circumferential side, each step being a determined angle θb, based on the current angle of the blade 10 (the straight line marked with "0" in the figure).
For example, an operator looking at the cut lines CLa1 to CLa6 and CLb1 to CLb6 of pattern PT1'' in Figure 13 (c) can see that it is necessary to adjust the orientation of the blade 10 so as to move the ends of the cut lines CLa1 to CLa6 on the first reference line Ls1 side toward the upper side in the figure, i.e., to rotate the blade 10 around the center line Xc.
Therefore, one of the determined change levels (+1, +2, +3) on the plus side in (b) of Fig. 15 is selected, and the angle adjustment unit 123 (see Fig. 10) drives the tool driving mechanism D (see Fig. 10) provided in the support unit 7B to rotate the tool 8 around the center line Xc by an angle determined according to the selected adjustment level.
For example, when "+1" in Fig. 15(b) is selected, the tool 8 is rotated by a predetermined angle θb determined according to "+1." As a result, the orientation of the blade 10 in Fig. 15(b) rotates in the clockwise direction (CW direction) around the center line Xc and approaches a straight line along the X direction.

As an example, the adjustment level may be determined by capturing an image of the formed pattern PT1 with a camera unit provided in the cutting plotter 1 and comparing the captured image with previously prepared learning data. In this case, even the adjustment of the angle of the blade 10 can be automated.

Then, when the angle adjustment in step S109 is completed, in step S110, the pattern forming unit 122 checks whether the number of times the pattern PT1 has been formed has reached the upper limit number. For example, if the upper limit number is "4" and the number of times the pattern PT1 has currently been formed is "2", the process returns to step S107.
In this way, the pattern PT1 is formed again. In step S108, the processes of steps S107 to S109 are repeated until it is determined that the angle adjustment is not necessary or until the number of times the pattern PT1 has been formed reaches the upper limit, and the adjustment of the orientation of the blade 10 is repeatedly performed while gradually narrowing the angle by which the blade 10 is rotated around the center line Xc.

Then, when it is determined that angle adjustment is not necessary (step S108, No), or when the number of times pattern PT1 has been formed reaches the upper limit (step S110, Yes), the process proceeds to step S111.

Here, the upper limit number can be set to any number. As the upper limit number increases, the angle by which the blade 10 is rotated around the center line Xc is gradually narrowed while the adjustment of the orientation of the blade 10 is repeatedly performed, so that the orientation of the blade 10 can be further optimized. On the other hand, the more times the pattern PT1 is formed, the more time it will take to adjust the angle. Therefore, it is preferable to set the upper limit number to any number, taking into consideration the precision of the blade orientation and the time it will take to adjust the angle.

In step S111, the pattern forming unit 122 forms a pattern PT3 on the surface of the target T.
Specifically, a pair of third reference lines Ls3, Ls3 extending along the Y direction (first direction) is drawn on the surface of the target object T using the pen P held in the pen holder 6. Furthermore, a pair of fourth reference lines Ls4, Ls4 extending along the X direction (second direction) is drawn on the surface of the target object T.
At this time, the pair of third reference lines Ls3, Ls3 are drawn parallel to each other with a distance d therebetween.
The pair of fourth reference lines Ls4, Ls4 are drawn parallel to each other with a distance d therebetween and perpendicular to the pair of third reference lines Ls3, Ls3.
The third reference lines Ls3, Ls3 and the fourth reference lines Ls4, Ls4 are drawn to have the same length.

After drawing the third reference line Ls3, Ls3 and the fourth reference line Ls4, Ls4, the cutting edge 10a is placed at approximately the center C3 of the intersection area surrounded by the third reference line Ls3, Ls3 and the fourth reference line Ls4, Ls4, and cut lines CL3a (fifth line) and CL3b (sixth line) are formed between the third reference line Ls3, Ls3, which depart from the intersection area to one side and the other side in the Y direction. Next, the cutting edge 10a is placed at approximately the center C3 of the intersection area, and cut lines CL3c (seventh line) and CL3d (eighth line) are formed between the fourth reference line Ls4, Ls4, which depart from the intersection area to one side and the other side in the X direction.

In FIG. 14A, the outer periphery of the circular mark Mk is the position (reference point) where the cutting edge 10 a is to be cut, and the direction of the arrow indicates the direction of the cutting edge 103 .
In the pattern PT3 to be formed, the lengths of the cut lines CL3a to CL3d are set to be the same, and the insertion depths of the blade tips 10a of the blades 10 into the target object T are all set to be the same.

Here, if the orientation of the blade 10 supported by the tool 8 is not aligned along the reference direction (the X direction in FIG. 9(a)), the cut lines CL3a and CL3b in the formed pattern PT3 will not be parallel to the third reference lines Ls3 and Ls3. Furthermore, the cut lines CL3c and CL3d will not be parallel to the fourth reference lines Ls4 and Ls4.

In this case, for example, as shown in (b) of Figure 9, if the orientation of the blade 10 is slightly inclined relative to the reference direction (X direction), the cut lines CL3a, CL3b will be inclined relative to the third reference lines Ls3, Ls3, and the cut lines CL3c, CL3d will be inclined relative to the fourth reference lines Ls4, Ls4, resulting in a pattern PT3' (see (c) of Figure 14).
Therefore, by checking the formed pattern PT3, it is possible to visually check whether the blade 10 is tilted, i.e., whether the blade 10 is properly supported by the tool 8.

In this way, by using multiple types of patterns PT1, PT2, and PT3 to check whether the blade 10 is properly supported by the tool 8, it is expected that the machining precision of the cutting plotter 1 will be ensured. Furthermore, since it is possible to determine how to adjust the blade 10 from the positional relationship between the formed cut line or cut mark and the reference lines Ls (first reference line Ls1, second reference line Ls2, third reference line Ls3, and fourth reference line Ls4), it is expected that the work time required to adjust the mounting state of the blade 10 will be reduced.

In the above embodiment, the blade 10 is oriented along the center line Xc when viewed from the radial direction of the center line Xc. Even if the blade is blade 10A that is inclined with respect to the center line Xc, the attachment state can be adjusted using the above patterns (pattern PT2, pattern PT1, pattern PT3).

Figure 17 is a diagram explaining the tool 9 supporting the blade 10A that is inclined with respect to the center line Xc. Figure 17(a) is a diagram showing the tool 9 attached to the tool holder 74 as viewed from the front side. In Figure 17(a), only the tool 9 is shown in solid lines, and the other parts are shown in virtual lines. Figure 17(b) is a perspective view of the tool 9. Figure 17(c) is a front view of the mounting plate 92.

18 and 19 are diagrams for explaining a test pattern formed in the case of a blade 10A according to a modified example.
Fig. 18(a) is a schematic diagram illustrating the orientation of the cutting edge 10a of the cutting edge 10A when the tool 9 to which the cutting edge 10A is attached is viewed from the center line Xc side. Fig. 18(a) shows an example of the orientation of the cutting edge 10A when forming a cut line or a cut mark on the target object T, in which the cutting edge 10a is disposed at an appropriate position.
Fig. 18B is a schematic diagram for explaining the relationship between the cut marks CMa and CMb when the pattern PT2 is formed by the blade 10A and the orientation of the blade 10A. Fig. 18C is a diagram for explaining the cut marks CMa and CMb of the pattern PT2 formed when the orientation of the cutting edge 10a of the blade 10A is appropriate.

Fig. 19(a) is a schematic diagram for explaining the orientation of the cutting edge 10a of the cutting tool 10A when the tool 9 to which the cutting tool 10A is attached is viewed from the center line Xc side. Fig. 19(a) shows an example in which the cutting edge 10a of the cutting tool 10A is tilted with respect to a 90° straight line on which the cutting edge 10a should be positioned. In the figure, the 0° straight line is a straight line along the movement direction of the cutting tool 10A when forming the cut line or the cut mark.
(b) and (c) of Figure 19 are schematic diagrams explaining the pattern PT2' formed when the orientation of the blade 10A is as shown in (a) of Figure 19 when forming the pattern PT2, and the relationship between the cut marks CMa and CMb in this pattern PT2' and the second reference line Ls2.
(d) of Figure 19 is a diagram explaining the pattern PT1 formed when the orientation of the blade 10A is as shown in (a) of Figure 18 when forming the pattern PT1, and the relationship between the cut lines CLa, CLb in this pattern PT1, and the first reference line Ls1.
(e) of Figure 19 is a diagram explaining the pattern PT1' formed when the orientation of the blade 10A is as shown in (a) of Figure 19 when forming the pattern PT1, and the relationship between the cut lines CLa, CLb in this pattern PT1' and the first reference line Ls1.
Fig. 20 is a schematic diagram showing an example of a pattern PT3 formed by the blade 10A. The meanings of the symbols shown in Fig. 20 are the same as those in Fig. 14. As in the adjustment of the mounting state of the blade 10A using the above-mentioned patterns PT1 and PT2, it is also possible to adjust the blade 10A using the pattern PT3 in the same manner as in the above embodiment.

As shown in FIG. 17 , when the tool 9 is attached to the tool holder 74 , the tool 9 is supported rotatably around a center line Xc that is the central axis of the tool holder 74 .
The tool 9 is provided with a mounting plate 92 below the connecting portion 91. The mounting plate 92 is a plate-like member that is disposed in a direction along the Z direction (vertical direction).
As shown in FIG. 17B, both side surfaces in the thickness direction of the mounting plate 92 serve as mounting surfaces 92a and 92b for a connecting piece 981 on the blade holder 98 side.
17C, when viewed from the mounting surface 92a side, the mounting plate 92 has an upper side 921 on the connecting portion 91 side formed in a substantially straight line. When the connecting portion 91 of the tool 9 is connected to the support unit 7B side, the upper side 921 of the mounting plate 92 is disposed in a direction along a horizontal line.

One of the mounting surfaces 92a is provided with a plurality of hole sets 94, each of which is made up of a circular hole 941 and an elongated hole 942. The hole sets 94 are positioning holes that are used when attaching a connecting piece 981 (see FIG. 17C) on the blade holder 98 side to the mounting surface 92a while setting the inclination of the blade tip 10a with respect to the horizontal line at a desired angle.
In this embodiment, the inclination of the cutting edge 10a with respect to the center line Xc is set to a predetermined inclination by changing the set of holes 94 used when attaching the blade holder 98 to the attachment plate 92.
Even in the case of the blade 10A supported by such a tool 9, by drawing the above pattern, it is possible to check whether the attachment state of the blade 10 is appropriate.

In the above embodiment, a case was illustrated in which pattern PT1 was formed following pattern PT2 when checking the attachment state of the blade, but pattern PT2 may also be formed following pattern PT1.

In the above embodiment, the case where the first reference line Ls1 and the second reference line Ls2 are drawn in the Y direction and the cut lines and cut marks are formed in the X direction to form the patterns PT1 and PT2 is illustrated, but the patterns PT1 and PT2 may be formed by drawing reference lines in the X direction and forming cut lines and cut marks in the Y direction.

In addition, in the above embodiment, an example is given of a case in which, when forming the pattern PT1, the cutting edge 10a of the blade 10 is placed at a position away from the first reference line Ls1 on one side and the other side in the X direction, and the tool 8 is moved in a direction perpendicular to the first reference line Ls1 to form cut lines CLa and CLb extending toward the first reference line Ls1.
Alternatively, the tool 8 may be moved in a direction intersecting the first reference line Ls1 at a predetermined angle to form cut lines CLa, CLb that are inclined with respect to the first reference line Ls1.
Furthermore, the cut lines CLa, CLb may be provided in a range that crosses the first reference line Ls1 without leaving any gap between them and the first reference line Ls1.

As described above, the cutting plotter 1 (processing device) according to the embodiment has the following configuration.
(1) The cutting plotter 1 includes a processing tool 8 that is rotatable around a center line Xc that is an axis perpendicular to the mounting surface 21a of the table 2;
a drive mechanism (drive mechanisms 5A to 5C) for displacing the tool 8 relative to the table 2;
and a control unit 12 that controls the operation of the drive mechanism and the processing by the tool 8 .
The control unit 12 is capable of forming a pattern PT1 (first pattern) for checking the attachment state of the tool 8.
The formation of the pattern PT1 is as follows:
A step of drawing a linear first reference line Ls1 on a surface of a target object T placed on a table 2;
forming, on both sides of the first reference line Ls1, a cut line CLa (first line) and a cut line CLb (second line) extending in a direction intersecting the first reference line Ls1 at a predetermined angle, using a tool 8;
and forming a plurality of combinations of cut lines CLa, CLb at predetermined intervals in a direction along the first reference line Ls1.

With this configuration, the presence or absence of a defect in the tool installation state can be visually confirmed based on the positional relationship between the first reference line Ls1 in the pattern PT1 and the cut line CLa (first line) and the cut line CLb (second line).
This allows the tool to be properly attached if there is a problem with the attachment of the tool by adjusting the attachment of the tool.

(I) In the above (1),
The tool 8 is supported by a tool holder 74 that is rotatable about a center line Xc.
The drive mechanisms (drive mechanisms 5 A to 5 C) displace the tool holder 74 relative to the table 2 .
The control unit 12
The tool 8 includes a pattern forming section 122 as a functional block for checking the attachment state of the blade 10 in the tool 8 .
The pattern forming unit 122 includes:
A step of drawing a first reference line Ls1 along the Y direction on a surface of the target T placed on a table 2;
a step of cutting the cutting edge 10a of the blade 10 at positions on one side and the other side of the first reference line Ls1 in an X direction perpendicular to the Y direction, and moving the tool 8 in a direction perpendicular to the first reference line Ls1 to form cut lines CLa and CLb extending toward the first reference line Ls1, thereby forming a reference pattern having the cut lines CLa and CLb on both sides of the first reference line Ls1 in the X direction;
A step of forming a pattern PT1 by forming a plurality of reference patterns at a predetermined interval c in the Y direction is performed.

When the tool 8 is moved in a direction perpendicular to the first reference line Ls1 to form the cut lines CLa, CLb, if the orientation of the cutting edge 10a of the blade 10 is appropriate, the multiple cut lines CLa, CLb formed are parallel to each other and perpendicular to the first reference line Ls1.
Therefore, by visually inspecting the formed pattern PT1 and checking the positional relationship between the reference line Ls1 and the cut lines CLa and CLb in the pattern PT1, it is possible to visually grasp whether there is a problem with the mounting condition (support condition) of the blade 10 at the mounting portion 82 of the tool 8.
As a result, if there is a problem with the mounting state of the blade 10, the mounting state of the blade 10 can be adjusted so that the blade 10 is appropriately positioned, thereby enabling the processing of the object T to be performed appropriately.

Furthermore, when adjusting the orientation of the blade 10 around the center line Xc, it is possible to determine whether the blade 10 should be moved to one side or the other side in the circumferential direction around the center line Xc from the intersection angle of the cut lines CLa, CLb or their extensions with respect to the first reference line Ls1. This is expected to reduce the work time required to adjust the attachment state of the blade 10.
In particular, since the multiple reference patterns are arranged at a predetermined interval c in the Y direction, it is easier to determine whether the cut lines CLa and CLb are inclined relative to the reference line Ls than when there is only one reference pattern. This is expected to reduce the time required to check for defects and to subsequently adjust the installation state of the blade 10.

If the cutting edge 10a of the blade 10 is deviated from the center line Xc, the positions at which the cut lines CLa and CLb are formed will be shifted in a direction perpendicular to the first reference line Ls1.
Here, if the cut lines CLa, CLb are formed at a predetermined interval from the first reference line Ls1, when the cutting edge 10a deviates from the center line Xc, the following visually recognizable tendencies occur in the formed pattern PT1: (a) the cut lines CLa, CLb intersect the first reference line Ls1, (b) the interval between the cut lines CLa, CLb and the first reference line Ls1 becomes wider (narrower).
This allows any defects in the mounting state of the tool 8 to be visually grasped by checking the pattern PT1.

(2) The cutting plotter 1 is
a processing tool 8 that is rotatable around a center line Xc that is an axis perpendicular to the mounting surface 21a of the table 2;
a drive mechanism (drive mechanisms 5A to 5C) for displacing the tool 8 relative to the table 2;
and a control unit 12 that controls the operation of the drive mechanism and the processing by the tool 8 .
The control unit 12 is capable of forming a pattern PT1 (first pattern) and a pattern PT2 (second pattern) for checking the attachment state of the tool 8.
The formation of the pattern PT1 is as follows:
A step of drawing a linear first reference line Ls1 on a surface of an object placed on a table 2;
The method includes a step of forming, using a tool 8, a cut line CLa (first line) and a cut line CLb (second line) that extend in a direction intersecting the first reference line Ls1 at a predetermined angle on both sides of the first reference line Ls1.
The formation of the pattern PT2 is as follows:
A step of drawing a linear second reference line Ls2 on a surface of an object placed on a table 2;
The method includes a step of forming cut marks CMa (third line) and CMb (fourth line) on both sides of the second reference line Ls2 using a tool 8.

With this configuration, in addition to checking the mounting state of tool 8 using pattern PT1, it is possible to visually check whether there is a problem with the mounting state of tool 8 from the positional relationship between the second reference line Ls2 in pattern PT2 and the cut marks CMa, CMb.
As a result, if there is a problem with the mounting state of the tool 8, the mounting state of the tool 8 can be adjusted so that the tool 8 is mounted appropriately.

(II) In the above (2),
The pattern forming unit 122 includes:
A step of drawing a second reference line Ls2 along the Y direction on a surface of the target T placed on the table 2;
A pattern PT2 is formed through a step in which the cutting edge 10a of the blade 10 is dropped to a predetermined depth at positions separated on one side and the other side of the reference line Ls2 in the X direction to form cut marks CMa and CMb on both sides of the reference line Ls in the X direction.

In this case, if the orientation of the cutting edge 10a of the blade 10 is set to be perpendicular to the second reference line Ls2, the presence or absence of a defect in the mounting condition of the blade 10 at the mounting portion 82 of the tool 8 can be visually confirmed from the orientation of the cut marks CMa, CMb relative to the second reference line Ls2 in pattern PT2.
As a result, if there is a problem with the mounting state of the blade 10, the mounting state of the blade 10 can be adjusted so that the blade 10 is appropriately positioned, thereby enabling the processing of the object T to be performed appropriately.
Furthermore, when adjusting the orientation of the cutting edge 10a of the blade 10, it is possible to understand from the arrangement of the cut marks CMa and CMb relative to the reference line Ls2 which side in the X direction the cutting edge 10a of the blade 10 should be moved to in order to position the cutting edge 10a at an appropriate position on the center line Xc. This is expected to reduce the time required to check for defects and to subsequently adjust the installation state of the blade 10.

If the cutting edge 10a of the blade 10 is deviated from the center line Xc, the positions at which the cut marks CMa and CMb are formed will be shifted in a direction perpendicular to the second reference line Ls2.
Here, if the cut marks CMa, CMb are formed at a predetermined interval from the second reference line Ls2, when the cutting edge 10a is deviated from the center line Xc, the following visually recognizable tendencies will occur in the formed pattern PT2: (a) the cut marks CMa, CMb intersect the second reference line Ls2, (b) the interval between the cut marks CMa, CMb and the second reference line Ls2 will become wider (narrower).
This allows any defects in the mounting state of the tool 8 to be visually grasped by checking the pattern PT2.

(3) The control unit 12 can form a pattern PT3 (third pattern) for checking the attachment state of the tool 8.
The formation of the pattern PT3 is as follows:
forming a pair of linear third reference lines Ls3, Ls3 parallel to each other and a pair of linear fourth reference lines Ls4, Ls4 parallel to each other and intersecting the pair of third reference lines Ls3, Ls3 at a predetermined angle on a surface of an object placed on a table 2;
The method includes a step of forming, using a tool 8, cut lines CL3a (fifth line) and CL3b (sixth line) in a direction along the third reference line Ls3, Ls3 on both sides of the reference point C3, based on a reference point C3 within an intersection region (region) surrounded by a pair of third reference lines Ls3, Ls3 and a pair of fourth reference lines Ls4, Ls4, and further forming, using a tool 8, cut lines CL3c (seventh line) and CL3d (eighth line) in a direction along the fourth reference line Ls4, Ls4 on both sides of the reference point C3.

With this configuration, in addition to checking the attachment state of the tool 8 using the patterns PT1 and PT2, it is possible to check the attachment state of the tool 8 using the pattern PT3.
Specifically, the presence or absence of a defect in the installation state of tool 8 can be visually confirmed from the positional relationship between a pair of parallel third reference lines Ls3, Ls3 and cut lines CL3a, CL3b, and the positional relationship between a pair of parallel fourth reference lines Ls4, Ls4 and cut lines CL3c, CL3d.
As a result, if there is a problem with the mounting state of the tool 8, the mounting state of the tool 8 can be adjusted so that the tool can be mounted appropriately.

(III) In the above (3),
The pattern forming unit 122 includes:
A step of drawing a pair of third reference lines Ls3, Ls3 parallel to each other along the Y direction and a pair of fourth reference lines Ls4, Ls4 parallel to each other along the X direction on a surface of the target T placed on the table 2, in a mutually orthogonal positional relationship;
A further step is performed in which the cutting edge 10a of the blade 10 is placed in an intersection area (area) surrounded by a pair of third reference lines Ls3, Ls3 and a pair of fourth reference lines Ls4, Ls4, using the center C3 of the intersection area as a reference, and the tool 8 is moved parallel to the third reference line Ls3 to form cut lines CL3a, CL3b extending on one side and the other side in the Y direction, and further the tool 8 is moved parallel to the fourth reference line Ls4 to form cut lines CL3c, CL3d extending on one side and the other side in the X direction, thereby forming a confirmation pattern PT3.

With this configuration, the inclination of the cut lines CL3a, CL3b relative to the pair of parallel third reference lines Ls3, Ls3, and the inclination of the cut lines CL3c, CL3d relative to the pair of parallel fourth reference lines Ls4, Ls4, can be visually confirmed. This makes it possible to visually check whether there is a problem with the mounting state of the blade 10 at the mounting portion 82.

(4) In (3) above,
The pattern forming unit 122 forms a pattern PT1 (first pattern), a pattern PT2 (second pattern), and a pattern PT3 (third pattern) in this order.

Pattern PT2 is effective for adjusting the deviation of the cutting edge 10a of the blade 10 from the center line Xc, pattern PT1 is effective for adjusting the circumferential orientation of the center line Xc of the cutting edge 10a of the blade 10, and pattern PT3 is effective for checking the inclination of the cut line when forming the cut line in the Y direction and the X direction. By forming the checking patterns in the above order, if there is a problem with the support state of the blade 10 on the tool 8, the support state can be appropriately adjusted.

(5) In any one of (1) to (4) above,
The cutting plotter 1 has a tool driving mechanism 5D (angle adjustment mechanism) that rotates the tool 8 supported by the tool holder 74 around the center line Xc.
The control unit 12 has an angle adjustment unit 123 (adjustment unit) that adjusts the orientation of the cutting edge 10 a of the blade 10 attached to the tool 8 .
The control unit 12 executes a step of adjusting the orientation of the tool 8 by rotating the tool 8 by a predetermined angle around the center line Xc.

When an operator manually adjusts the orientation of the cutting edge 10a of the blade 10 by rotating the tool 8 around the center line Xc, there is a large variation in accuracy depending on the operator, and there is also a large variation in the work time required to adjust the mounting state of the blade 10.
As described above, by rotating the tool 8 by a predetermined angle, the orientation of the cutting edge 10a (the angular position around the center line Xc of the tool 8) can be changed by the same angle at all times, thereby reducing variation among workers in adjusting the mounting state of the blade 10. This is expected to level out the work required to adjust the mounting state of the blade 10 and reduce the work time.

(6) In the above (5),
The control unit 12 performs the formation of the pattern PT1 multiple times.
When adjusting the orientation of the cutting edge 10a of the tool 8 after the pattern PT1 is formed, the control unit sets the predetermined angle to a smaller angle as the number of times the pattern PT1 is formed increases.

When configured in this manner, the orientation of the cutting edge 10a of the cutting tool 10 is repeatedly adjusted while gradually narrowing the angle at which the cutting tool 10 is rotated around the center line Xc. At an initial stage, the angle of the tool 8 is roughly adjusted, and then the orientation of the cutting edge 10a is adjusted while gradually narrowing the angle at which the tool 8 is rotated for adjustment. This is expected to optimize the orientation of the cutting edge 10a (angular position of the tool 8) and reduce the time required for optimization.

(IV) In the above (3) or (4),
The pattern forming unit 122 forms the pattern PT1 at least twice between the formation of the pattern PT2 and the formation of the pattern PT3.
When adjusting the orientation of the cutting edge 10a of the blade 10 supported by the tool 8 after the formation of the pattern PT1, the angle adjustment unit 123 (adjustment unit) sets the specified angle by which the tool 8 is rotated for adjustment to a smaller angle as the number of times the pattern PT1 is formed increases.

When configured in this manner, the orientation of the cutting edge 10a of the cutting tool 10 is repeatedly adjusted while gradually narrowing the angle at which the cutting tool 10 is rotated around the center line Xc. At an initial stage, the angle of the tool 8 is roughly adjusted, and then the orientation of the cutting edge 10a is adjusted while gradually narrowing the angle at which the tool 8 is rotated for adjustment. This is expected to optimize the orientation of the cutting edge 10a (angular position of the tool 8) and reduce the time required for optimization.

(V) In any one of (1) to (6) or (I) to (IV) above,
The tool 8 supports a plate-shaped blade 10 (blade portion).
The blade 10 is formed in a tapered shape in which the width in the radial direction of the center line Xc becomes narrower toward the blade tip 10a on the tip side where the target object T is located.
When forming a pattern, the tool 8 is arranged with the blade 10 oriented along the direction of movement of the blade 10 .

If the blade 10 is positioned at an angle to the direction of movement (see FIG. 9(b)), the cut line CL that is formed will deviate from the originally intended direction. For example, depending on the degree of deviation, when forming a cut line in a direction perpendicular to the reference line Ls, the formed cut line may not be perpendicular to the reference line Ls. In such cases, this will affect the machining accuracy of the object T. By positioning the blade 10 as described above, it is expected that the machining accuracy of the object T will be improved.

(VI) In the above (V),
The blade 10 is formed in a tapered shape in which the width in the radial direction of the center line Xc becomes narrower toward the blade tip 10a on the tip side where the target object T is located.
The blade 10 has a side surface along the center line Xc and an inclined surface inclined relative to the center line Xc.
The blade surface 103 of the blade 10 is provided on an inclined surface.
When forming the patterns PT1, PT2, and PT3, the tool 8 is disposed with the blade surface 103 facing in the direction of movement of the blade 10.

This configuration is expected to improve the machining accuracy of the target object T.

The present invention can also be specified as a method for forming a pattern for checking the support state of the tool 8.
(7) A method for forming a pattern includes the steps of:
a processing tool 8 that is rotatable around a center line Xc that is an axis perpendicular to the mounting surface 21a of the table 2;
This is performed in order to check the attachment state of the tool 8 in the cutting plotter 1 (processing device) having a drive mechanism (drive mechanisms 5A to 5C) that displaces the tool 8 relatively to the table 2.
The method for forming the pattern is as follows:
Pattern PT1,
A step of drawing a linear first reference line Ls1 on a surface of a target object T placed on a table 2;
forming, on both sides of the first reference line Ls1, a cut line CLa (first line) and a cut line CLb (second line) extending in a direction intersecting the first reference line Ls1 at a predetermined angle, using a tool 8;
The combinations of cut lines CLa and CLb are formed through a step of forming a plurality of combinations of cut lines CLa and CLb at predetermined intervals c in a direction along the first reference line Ls1.

With this configuration, the presence or absence of a defect in the mounting (support) state of the blade 10 at the mounting portion 82 can be visually confirmed from the positional relationship between the reference line Ls and the cut lines CLa, CLb in the formed pattern PT1.
As a result, if there is a problem with the mounting state of the blade 10, the mounting state of the blade 10 can be adjusted so that the blade 10 is appropriately positioned, thereby enabling the workpiece to be properly machined.
Furthermore, when adjusting the orientation of the blade 10 around the center line Xc, it is possible to determine whether the blade 10 should be moved to one side or the other side in the circumferential direction around the center line Xc from the intersection angle of the extensions of the cut lines CLa and CLb with respect to the reference line Ls1. This is expected to reduce the work time required to adjust the attachment state of the blade 10.
In particular, since the multiple reference patterns are arranged at a predetermined interval c in the Y direction, it is easier to determine whether the cut lines CLa and CLb are inclined relative to the reference line Ls than when there is only one reference pattern. This is expected to reduce the time required to check for defects and to subsequently adjust the installation state of the blade 10.

(8) In the above (7),
Pattern PT2,
A step of drawing a linear second reference line Ls2 on a surface of the target object T placed on the table 2;
A step of forming a cut mark CMa (third line) and a cut mark CMb (fourth line) on both sides of the second reference line Ls2 is then performed.

When configured in this manner, the presence or absence of a defect in the mounting condition (support condition) of the blade 10 at the mounting portion 82 of the tool 8 can be visually confirmed from the positional relationship between the second reference line Ls2 and the cut marks CMa, CMb in the formed pattern PT2.
As a result, if there is a problem with the mounting state of the blade 10, the mounting state of the blade 10 can be adjusted so that the blade 10 is appropriately positioned, thereby enabling the workpiece to be properly machined.
Furthermore, when adjusting the orientation of the cutting edge 10a of the blade 10, it is possible to understand from the arrangement of the cut marks CMa, CMb relative to the reference line Ls which side in the X direction the cutting edge 10a of the blade 10 should be moved to in order to position the cutting edge 10a at an appropriate position on the center line Xc.
This is expected to reduce the amount of time required to adjust the mounting state of the blade 10.

(9) In the above (7) or (8),
Pattern PT3,
forming a pair of linear third reference lines Ls3, Ls3 parallel to each other and a pair of linear fourth reference lines Ls4, Ls4 parallel to each other and intersecting the pair of third reference lines Ls3, Ls3 at a predetermined angle on a surface of an object placed on a table 2;
The method includes a step of forming, using a tool 8, cut lines CL3a (fifth line) and CL3b (sixth line) in a direction along the third reference line Ls3, Ls3 on both sides of the reference point C3, based on a reference point C3 within an intersection region (region) surrounded by a pair of third reference lines Ls3, Ls3 and a pair of fourth reference lines Ls4, Ls4, and further forming, using a tool 8, cut lines CL3c (seventh line) and CL3d (eighth line) in a direction along the fourth reference line Ls4, Ls4 on both sides of the reference point C3.

With this configuration, the inclination of the cut lines CL3a, CL3b relative to the pair of parallel third reference lines Ls3, Ls3, and the inclination of the cut lines CL3c, CL3d relative to the pair of parallel fourth reference lines Ls4, Ls4, can be visually confirmed. This makes it possible to visually check whether there is a problem with the mounting state of the blade 10 at the mounting portion 82.

The present invention is not limited to the above-described embodiment, and can be modified as appropriate within the scope of the technical concept of the present invention.

1: Cutting plotter (processing device)
10: Blade 10a: Blade tip 11: Control panel 12: Control unit 122: Pattern forming unit 123: Angle adjustment unit 2 (2A, 2B): Table 20: Table base 21: Table top 21a: Placement surface 3: Support beam 4: Processing unit 43: Holder unit 44 (44a to 44c): Slot 5 (5A, 5B, 5C): Drive mechanism 5D: Tool drive mechanism 5E: Tool lifting mechanism 6: Pen holder 7 (7A, 7B): Support unit 71: Main body 72: Insertion leg 73: Support member 74: Tool holder 8, 8', 9: Tool 81: Connection portion 82: Mounting portion 83: Blade holder P: Pen P1: Pen tip T: Target object PT1: Pattern (first pattern)
PT2: Pattern (second pattern)
PT3: Pattern (third pattern)
Ls (Ls1 to Ls4): Reference lines (first reference line to fourth reference line)
CLa: Cut line (first line)
CLb: Cut line (second line)
CMa: Cut mark (third line)
CMb: Cut mark (line 34)
CL3a: Cut line (5th line)
CL3b: Cut line (sixth line)
CL3c: Cut line (7th line)
CL3d: Cut line (8th line)

Claims (9)

a processing tool that is rotatable about an axis perpendicular to a mounting surface of the table;
a drive mechanism for displacing the tool relative to the table;
A control unit that controls an operation of the drive mechanism and processing by the tool,
The control unit is capable of forming a first pattern for confirming an attachment state of the tool,
The formation of the first pattern includes:
Drawing a linear first reference line on a surface of an object placed on the table;
forming, using the tool, a first line and a second line extending in a direction intersecting the first reference line at a predetermined angle on both sides of the first reference line;
forming a plurality of combinations of the first line and the second line at predetermined intervals in a direction along the first reference line;
The processing device includes: a processing tool that is rotatable about an axis perpendicular to a mounting surface of the table;
a drive mechanism for displacing the tool relative to the table;
A control unit that controls an operation of the drive mechanism and processing by the tool,
The control unit is capable of forming a first pattern and a second pattern for checking an attachment state of the tool,
The formation of the first pattern includes:
Drawing a linear first reference line on a surface of an object placed on the table;
forming, using the tool, a first line and a second line on either side of the first reference line, the first line and the second line extending in a direction intersecting the first reference line at a predetermined angle,
The formation of the second pattern includes:
Drawing a linear second reference line on a surface of the object placed on the table;
and forming a third line and a fourth line on either side of the second reference line using the tool. In claim 2,
The control unit is capable of forming a third pattern for confirming an attachment state of the tool,
The formation of the third pattern includes:
forming, on a surface of the object placed on the table, a third reference line which is a pair of straight lines parallel to each other, and a fourth reference line which is a pair of straight lines parallel to each other and intersects the pair of third reference lines at a predetermined angle;
Using a reference point within an area surrounded by the pair of third reference lines and the pair of fourth reference lines as a reference,
forming a fifth line and a sixth line using the tool, the fifth line and the sixth line extending parallel to the third reference line on both sides of the reference point between the pair of third reference lines, and further forming a seventh line and an eighth line using the tool, the seventh line and the eighth line extending parallel to the fourth reference line on both sides of the reference point between the pair of fourth reference lines. In claim 3,
The control unit forms the second pattern, the first pattern, and the third pattern in this order. In any one of claims 1 to 4,
The control unit is
The processing apparatus performs a step of adjusting the orientation of the tool by rotating the tool around the axis line by a predetermined angle. In claim 5,
The control unit performs formation of the first pattern a plurality of times,
The control unit, when adjusting the orientation of the tool after the first pattern is formed, sets the predetermined angle to a smaller angle as the number of times the first pattern is formed increases. a processing tool that is rotatable about an axis perpendicular to a mounting surface of the table;
a driving mechanism for relatively displacing the tool with respect to the table, in a processing apparatus having the tool, the method for forming a pattern on an object for confirming an attachment state of the tool, the method comprising:
The first pattern,
Drawing a linear first reference line on a surface of the object placed on the table;
forming, using the tool, a first line and a second line extending in a direction intersecting the first reference line at a predetermined angle on both sides of the first reference line;
forming a plurality of combinations of the first line and the second line at predetermined intervals in a direction along the first reference line;
How the pattern is formed. In claim 7,
The second pattern,
Drawing a linear second reference line on a surface of the object placed on the table;
forming a third line and a fourth line on either side of the second reference line. In claim 7 or claim 8,
A step of drawing a third pattern on the surface of the object placed on the table by drawing a pair of third reference lines which are parallel to each other and a pair of fourth reference lines which are parallel to each other in a mutually intersecting positional relationship;
A method for forming a pattern, comprising the steps of: using a reference point within an area surrounded by the pair of third reference lines and the pair of fourth reference lines as a reference point, forming a fifth line and a sixth line extending parallel to the third reference line on both sides of the reference point between the pair of third reference lines using the tool, and further forming a seventh line and an eighth line extending parallel to the fourth reference line on both sides of the reference point between the pair of fourth reference lines using the tool.

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