CN216139689U - Recording apparatus - Google Patents

Abstract

The present invention relates to a recording device, which solves the following problem, that is, when foreign matter is mixed into the cleaning liquid, the surface of the conveying belt may be damaged by the foreign matter during the contact between the cleaning member and the conveying belt, As a result, the durability of the conveyor belt is reduced. The printer of the utility model is provided with: a recording unit; an adhesive tape; a storage tank; a cleaning brush; a servo motor and a transmission unit. The storage tank stores the cleaning liquid for cleaning the surface. A part of the cleaning brush is immersed in the cleaning liquid, and the surface is cleaned by being rotated. The servo motor generates a driving force for rotating the cleaning brush. The transmission unit transmits the driving force of the servo motor to the cleaning brush. The cleaning brush is rotatably supported on the storage tank and has a shaft portion exposed outside the storage tank. The transmission unit is arranged outside the storage tank, and transmits the driving force of the servo motor to the shaft portion.

Description

Recording apparatus

Technical Field

The present invention relates to a recording apparatus.

Background

The printing apparatus described in patent document 1 includes: a storage tank for storing the cleaning liquid; a cleaning brush which is built in the storage tank and cleans the conveyor belt; and a plurality of gears for transmitting the rotational driving force of the driving motor to the brush. A part of the plurality of gears is immersed in the cleaning liquid.

In the printing apparatus of patent document 1, there is a possibility that a part of the gear is peeled off or rusted due to the gear being deteriorated with time. When such foreign matter is mixed into the cleaning liquid, the surface of the conveyor belt is damaged by the foreign matter during contact between the cleaning member and the conveyor belt, and therefore, the durability of the conveyor belt may be reduced.

Patent document 1: japanese patent laid-open publication No. 2017-154851

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, a recording apparatus according to the present invention includes: a recording unit capable of recording on a medium; a conveyor belt capable of conveying the medium; a storage tank that stores a cleaning liquid for cleaning the surface of the conveyor belt; a cleaning member at least a part of which is immersed in the cleaning liquid and which cleans the surface by being rotated; a driving unit that generates a driving force for rotating the cleaning member; and a power transmission portion that transmits the driving force of the driving portion to the cleaning member, wherein the cleaning member has a shaft portion rotatably supported by the storage tank and exposed to an outside of the storage tank, and the power transmission portion is disposed outside the storage tank and transmits the driving force of the driving portion to the shaft portion.

In the recording apparatus of the present invention, the storage tank may have: a bottom wall portion; a side wall portion that forms a chamber portion together with the bottom wall portion; and a partitioning portion that is provided upright from the bottom wall portion and partitions the chamber portion into a first chamber and a second chamber, wherein a through-hole through which the shaft portion passes is provided in the side wall portion of the first chamber, and a discharge portion that discharges the cleaning liquid that has flowed in from the first chamber is provided in the bottom wall portion of the second chamber, and the through-hole is provided above an upper end of the partitioning portion in a device height direction that intersects with the bottom wall portion.

In the recording apparatus according to the present invention, the recording apparatus may further include a support leg portion that is supported on an apparatus installation surface and supports the storage tank from below in the apparatus height direction, a space portion may be formed below the storage tank by the support leg portion, and at least a part of the driving portion may be located in the space portion below the storage tank in the apparatus height direction.

In the recording apparatus of the present invention, the entire drive unit may overlap the storage tank when viewed in the height direction of the apparatus.

In the recording apparatus of the present invention, the driving unit and the discharging unit may not overlap each other when viewed in a height direction of the apparatus.

In the recording apparatus of the present invention, the side wall portion may be provided with a support portion that rotatably supports the shaft portion, the through-hole may be a notch portion that allows the shaft portion to be detached upward in the apparatus height direction, the support portion may be aligned with the notch portion in an axial direction of the shaft portion that intersects the apparatus height direction, and a lower end of the notch portion may be located above an upper end of the partitioning portion in the apparatus height direction.

In the recording apparatus of the present invention, the power transmission unit may include a transmission belt.

In the recording apparatus of the present invention, the shaft portion may be provided with a first pulley, the driving portion may be provided with a second pulley that receives the generated driving force, the transmission belt may be wound around the first pulley and the second pulley, and the transmission belt may be provided with a tension adjusting portion that adjusts a tension acting on the transmission belt.

In the recording apparatus of the present invention, the tension adjusting portion may include a pressing portion that presses an outer surface of the transmission belt opposite to an inner surface wound around the first pulley and the second pulley.

In the recording apparatus of the present invention, the pressing portion may include a pulley idler that is driven to rotate in accordance with the circumferential movement of the transmission belt.

Drawings

Fig. 1 is a schematic diagram of an internal configuration of a printer according to an embodiment.

Fig. 2 is a perspective view of the cleaning unit and the transfer unit according to the embodiment.

Fig. 3 is an enlarged schematic view of a part of the internal structure of the printer according to the embodiment.

Fig. 4 is a side view of the cleaning unit and the transfer unit according to the embodiment.

Fig. 5 is a perspective view of a support plate and a peripheral portion for supporting the brush according to the embodiment.

Fig. 6 is a side view of the support plate attached to the side plate according to the embodiment, as viewed from the inside in the X direction.

Fig. 7 is a perspective view of a side plate and a transmission unit according to the embodiment.

Fig. 8 is a front view of the cleaning unit, the servo motor, and the transmission unit according to the embodiment.

Fig. 9 is a plan view of the cleaning unit, the servo motor, and the drive unit according to the embodiment.

Detailed Description

The present invention will be described in brief below.

A recording apparatus according to a first aspect of the present invention for solving the above problems includes: a recording unit capable of recording on a medium; a conveyor belt capable of conveying the medium; a storage tank that stores a cleaning liquid for cleaning the surface of the conveyor belt; a cleaning member at least a part of which is immersed in the cleaning liquid and which cleans the surface by being rotated; a driving unit that generates a driving force for rotating the cleaning member; and a power transmission portion that transmits the driving force of the driving portion to the cleaning member, wherein the cleaning member has a shaft portion rotatably supported by the storage groove and exposed to an outside of the storage groove, and the power transmission portion is disposed outside the storage groove and transmits the driving force of the driving portion to the shaft portion.

According to this aspect, the power transmission portion transmits a driving force from the driving portion to the shaft portion, so that the cleaning member is rotated and the surface of the conveyor belt is cleaned. Here, since the shaft portion is exposed to the outside of the storage tank, the power transmission portion is not immersed in the cleaning liquid in the storage tank, and therefore foreign matter generated from the power transmission portion does not enter the cleaning liquid. Thus, since the surface of the conveyor belt is prevented from being damaged by foreign matter, a decrease in durability of the conveyor belt can be prevented.

A recording apparatus according to a second aspect is the recording apparatus according to the first aspect, wherein the storage tank includes: a bottom wall portion; a side wall portion that forms a chamber portion together with the bottom wall portion; and a partitioning portion that is provided upright from the bottom wall portion and partitions the chamber portion into a first chamber and a second chamber, wherein a through-hole through which the shaft portion passes is provided in the side wall portion of the first chamber, and a discharge portion that discharges the cleaning liquid that has flowed in from the first chamber is provided in the bottom wall portion of the second chamber, and the through-hole is provided above an upper end of the partitioning portion in a device height direction that intersects with the bottom wall portion.

The interior of the storage tank is divided into the first chamber and the second chamber by the dividing unit. The cleaning liquid overflowing from the first chamber due to the rotation of the cleaning member flows over the partitioning portion into the second chamber. Then, the cleaning liquid flowing into the second chamber is discharged through the discharge portion. In this way, the dividing portion and the discharging portion define the liquid level of the cleaning liquid in the first chamber.

According to this aspect, when the cleaning liquid flows into the second chamber beyond the partitioning portion, the through-hole is provided above the upper end of the partitioning portion in the device height direction, and thus the cleaning liquid is prevented from leaking to the outside of the storage tank through the through-hole and the shaft portion, and therefore the cleaning liquid can be prevented from leaking to the outside of the storage tank without providing a member that is likely to deteriorate over time, such as a sealing member.

A recording apparatus according to a third aspect is the recording apparatus according to the second aspect, wherein the recording apparatus includes a supporting leg portion that is supported on an apparatus installation surface and supports the storage tank from below in the apparatus height direction, a space portion is formed below the storage tank by the supporting leg portion, and at least a part of the driving portion is located in the space portion below the storage tank in the apparatus height direction.

According to this aspect, the space portion is formed below the storage tank by the support leg portion. At least a part of the driving unit is located in the space portion. Thus, the space portion below the storage tank is effectively utilized, and therefore, the space saving of the recording apparatus in the apparatus height direction is achieved.

A recording apparatus according to a fourth aspect is the recording apparatus according to the third aspect, wherein the entire drive unit overlaps the storage tank when viewed in a height direction of the apparatus.

According to this aspect, since the entire drive unit is located in the space portion, the recording apparatus can be further reduced in space as compared with a configuration in which a part of the drive unit protrudes from the space portion.

A recording apparatus according to a fifth aspect is the third or fourth aspect, wherein the driving unit and the discharge unit do not overlap with each other when viewed from the height direction of the apparatus.

According to this aspect, even if the cleaning liquid leaks to the outside of the storage tank through the discharge portion, the cleaning liquid can be prevented from being stuck to the driving portion because the driving portion is not present below the discharge portion.

A recording apparatus according to a sixth aspect is the recording apparatus according to any one of the second to fifth aspects, wherein a support portion that rotatably supports the shaft portion is provided on the side wall portion, the through-hole is a cutout portion that allows the shaft portion to be detached upward in the apparatus height direction, the support portion is aligned with the cutout portion in an axial direction of the shaft portion that intersects the apparatus height direction, and a lower end of the cutout portion is located above an upper end of the partitioning portion in the apparatus height direction.

According to this aspect, since the cleaning member is detached from the storage groove by detaching the shaft portion from the side wall portion in the cutout portion, maintenance work of the cleaning member can be easily performed. Further, since the supporting portion is disposed above the upper end of the dividing portion as well as the notch portion, it is possible to suppress the cleaning liquid from leaking to the outside of the storage tank through the notch portion.

A recording apparatus according to a seventh aspect is the recording apparatus according to the sixth aspect, wherein the power transmission unit includes a transmission belt.

According to this aspect, the influence of noise and backlash due to contact of components can be reduced as compared with a configuration in which the power transmission unit includes a chain or a configuration in which the power transmission unit includes only a plurality of gears by transmitting the driving force via the transmission belt.

A seventh aspect of the present invention is the recording apparatus according to the seventh aspect, wherein a first pulley is provided on the shaft portion, a second pulley that receives the generated driving force is provided on the driving portion, the transmission belt is wound around the first pulley and the second pulley, and a tension adjusting portion that adjusts a tension acting on the transmission belt is provided on the transmission belt.

In order to transmit the driving force to the shaft portion, the transmission belt needs to be wound around the first pulley and the second pulley with a predetermined tension applied thereto.

However, in the configuration using the transmission belt having the circumferential length for achieving the predetermined tension, when the cleaning member or the transmission belt is replaced, it is necessary to detach the transmission belt from the first pulley and the second pulley while applying a tension exceeding the predetermined tension to the transmission belt, and thus workability in detaching the transmission belt is deteriorated.

Here, according to this aspect, even if the transmission belt having a circumferential length that achieves a tension smaller than the predetermined tension is used, the tension acting on the transmission belt can be adjusted by the tension adjusting portion after the transmission belt is wound around the first pulley and the second pulley, and a desired tension can be applied, so that the workability when the cleaning member or the transmission belt is detached can be improved.

A recording apparatus according to a ninth aspect is the recording apparatus according to the eighth aspect, wherein the tension adjusting portion includes a pressing portion that presses an outer surface of the transmission belt opposite to an inner surface wound around the first pulley and the second pulley.

According to this aspect, the outer surface of the transmission belt is pressed by the pressing portion, so that the transmission belt is deformed inward. In this way, since the amount of winding of the transmission belt around the first pulley and the second pulley is increased, and the transmission belt is prevented from falling off the outer peripheral surfaces of the first pulley and the second pulley, the transmission of the driving force from the driving portion to the shaft portion can be stabilized.

A recording apparatus according to a tenth aspect of the present invention is the recording apparatus according to the ninth aspect of the present invention, wherein the pressing portion includes a pulley idler that is driven to rotate with the circumferential movement of the transmission belt.

According to this aspect, since the pulley idle pulley as the pressing portion is driven to rotate as the transmission belt moves around, the pressing portion is prevented from becoming a resistance load to the movement of the transmission belt when the transmission belt transmits the driving force, and an increase in the rated capacity of the driving portion can be prevented. This can suppress an increase in size of the recording apparatus due to an increase in size of the driving unit.

The printer 10 according to the embodiment of the present invention will be specifically described below.

As shown in fig. 1, the printer 10 is provided on the floor portion 2 of the factory 1. The floor section 2 has a floor surface 4. The floor surface 4 is an example of a device installation surface. Further, the printer 10 is an example of a recording apparatus, and performs recording on the medium M. As an example of the medium M, there is a fabric or a paper. In addition, the X-Y-Z coordinate system shown in each figure is an orthogonal coordinate system.

The X direction is a device width direction of the printer 10, and is a horizontal direction as an example. When the printer 10 is viewed from the front, the X direction is set to the left direction as + X direction, and the right direction as-X direction. The X direction is a width direction of the medium M and is an example of an axial direction of a brush 52 described later.

The Y direction is a depth direction of the printer 10 and is a horizontal direction. The direction in which the medium M is conveyed is set to the + Y direction, and the opposite direction to the + Y direction is set to the-Y direction.

The Z direction is along the direction of gravity upon which gravity acts. The upward direction of the Z direction is defined as the + Z direction, and the downward direction is defined as the-Z direction. The + Z direction is the device height direction of the printer 10, and intersects both the Y direction and the X direction.

As one example, the printer 10 is configured to include an apparatus main body 12, a main body cover 14, a conveying unit 16, a recording unit 20, a control unit 26, and a cleaning unit 40. The main body cover 14 is an exterior member that covers each part of the printer 10.

Specifically, the printer 10 includes: the recording unit 20, the adhesive tape 17, the storage tank 42, the washing brush 52, the servo motor 72, and the transfer unit 82 (fig. 2).

The apparatus main body 12 is configured as a base portion on which each portion of the printer 10 is provided. The apparatus main body portion 12 includes a support unit 30.

The support unit 30 is an example of a support leg portion, and is supported on the floor surface 4 and supports a storage tank 42, which will be described later, from below (in the (-Z direction) in the + Z direction. A space portion K is formed below the storage tank 42 by the support unit 30.

Specifically, the support unit 30 includes: arm frame 31, mounting frame 32, foot frame 33, caster 39, and cylinder 35.

The arm frame 31 is formed of two rod-like members arranged at an interval in the X direction and extending in the Y direction.

The mounting frame 32 is formed of a rod-like member extending in the X direction and mounted on the arm frame 31.

The leg frame 33 is formed of a rod-like member extending in the-Z direction from the arm frame 31 and the mounting frame 32.

The caster 39 is rotatably provided on the end of the foot frame 33 in the-Z direction.

The cylinder 35 includes a main body 36 and a movable portion 37 that can be raised and lowered in the Z direction with respect to the main body 36. The body portion 36 is fixed to the arm frame 31. The movable portion 37 is fixed to the lower surface of the storage tank 42 in the-Z direction. In this manner, the air cylinder 35 is an example of the elevating unit, and can elevate and lower the cleaning unit 40 in the Z direction.

The conveying unit 16 is provided on the apparatus main body portion 12, and includes a driving roller 16A, a driven roller 16B, an adhesive tape 17, and a not-shown take-up roller. The conveyance unit 16 can convey the medium M in the + Y direction in accordance with the movement of the adhesive tape 17 by the rotation of the drive roller 16A.

In the + Y direction, the drive roller 16A is disposed downstream, and the driven roller 16B is disposed upstream. Each of the drive roller 16A and the driven roller 16B has a rotation axis along the X direction. The rotation of the drive roller 16A is controlled by a control unit 26 described later.

The adhesive tape 17 is an example of a conveyor belt, and is configured as an endless belt in which both ends of a flat plate having elasticity are joined. The adhesive tape 17 is wound around the outer peripheral surface of the driving roller 16A and the outer peripheral surface of the driven roller 16B. In other words, the tape 17 is provided on the apparatus main body 12 and can convey the medium M in the + Y direction by performing the circumferential movement. The surface 18 of the tape 17 has, as an example, adhesiveness, and can support the medium M and can be bonded. The tack property is a property of being temporarily bondable to another member and being peelable from a bonded state. When the surface 18 is observed, a direction intersecting with the + Y direction, which is a moving direction of the tape 17, is an X direction, which is one example of a width direction.

A portion of the surface 18 located along the X-Y plane in the + Z direction with respect to the center of the driving roller 16A is defined as an upper surface portion 18A. The upper surface portion 18A supports the medium M. A portion of the surface 18 wound around the driving roller 16A is a curved surface portion 18B. Further, a portion of the surface 18 located along the X-Y plane in the-Z direction with respect to the center of the driving roller 16A is set as a lower surface portion 18C.

In the transport unit 16, the medium M is wound by a winding roller, not shown, and is peeled from the curved surface portion 18B.

The recording unit 20 is one example of a recording portion, and is provided on the apparatus main body portion 12. Further, the recording unit 20 can record on the medium M conveyed in the + Y direction. Specifically, the recording unit 20 includes a recording head 21 as an example of an ejection portion, and a carriage 22 that supports the recording head 21 so as to be capable of reciprocating in the X direction. The recording unit 20 is disposed above the tape 17 (+ Z direction).

The recording head 21 has a plurality of nozzles, not shown, and is disposed in the + Z direction with respect to the surface 18. The recording head 21 can perform recording on the medium M by ejecting ink, which is an example of liquid droplets, from a plurality of nozzles onto the recording surface of the medium M.

The control Unit 26 is configured to include a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and a Memory (not shown), and controls operations of each Unit of the printer 10.

As shown in fig. 2, the cleaning unit 40 is an example of a cleaning portion, and cleans the surface 18 of the adhesive tape 17. Specifically, the cleaning unit 40 includes: a storage tank 42, a washing brush 52, a servo motor 72, and a transfer unit 82. The cleaning unit 40 includes a squeegee 56 and a partition wall 58 (fig. 3). The cleaning unit 40 is supported by the support unit 30 (fig. 1). Further, the servo motor 72 is provided only at the end in the-X direction in the cleaning unit 40. Therefore, hereinafter, a portion closer to the-X direction than the center of the cleaning unit 40 in the X direction will be described, and a description of a portion in the + X direction will be omitted.

As shown in fig. 3, the storage tank 42 is disposed below the drive roller 16A and the tape 17 (-Z direction). The storage tank 42 further includes: a bottom wall portion 43, a front wall portion 44, a rear wall portion 45, and side panels 46. A cleaning liquid Q for cleaning the surface 18 is stored in the chamber S surrounded by the bottom wall 43, the front wall 44, the rear wall 45, and the side plate 46. In other words, the storage tank 42 stores the cleaning liquid Q supplied to the brush 52.

The bottom wall portion 43 is formed in a quadrangular plate shape having a predetermined thickness in the Z direction, and is arranged along the X-Y plane. The surface of the bottom wall 43 in the + Z direction is a bottom surface 43A.

The front wall portion 44 stands upright in the + Z direction at the end portion in the + Y direction of the bottom wall portion 43.

The rear wall portion 45 stands upright in the + Z direction at the-Y direction end of the bottom wall portion 43. The rear wall portion 45 includes, as an example, a vertical wall 45A that supports the squeegee 56, and a vertical wall 45B that constitutes a part of the exterior of the storage tank 42.

The side plate 46 is an example of a side wall portion, and is provided so as to stand in the + Z direction from the bottom wall portion 43 at an end portion in the + X direction and an end portion in the-X direction in the peripheral edge portion of the bottom wall portion 43, as viewed from the Z direction. In the present embodiment, a pair of side plates 46 are provided. Specifically, the pair of side plates 46 are attached to the end of the bottom wall portion 43 in the + X direction and the end of the bottom wall portion 43 in the-X direction, respectively, by welding or the like, for example. The side plate 46 forms the chamber S together with the bottom wall 43, the front wall 44, and the rear wall 45. Further, the side plate 46 extends beyond the bottom wall portion 43 in the-Z direction when viewed from the X direction. That is, the side plate 46 includes a side portion 47 forming the chamber S, and a mounted portion 48 extending from the side portion 47 in the-Z direction and to which a servo motor 72 (fig. 2) described later is mounted.

As shown in fig. 4, a cutout 49 is provided in the side portion 47 of the side plate 46 at a position closer to the + Y direction than the center in the Y direction among the ends in the + Z direction. The + Z direction is an example of a direction intersecting the bottom wall portion 43.

The notch 49 is a cut from the + Z direction end surface of the side portion 47 in the-Z direction. The notch 49 is formed in a U shape when viewed from the X direction. The length corresponding to the width of the notch portion 49 in the Y direction is longer than the length corresponding to the diameter of the shaft portion 53 described later. Thus, the shaft portion 53 can be inserted into the inside of the cutout portion 49 and exposed in the-X direction compared to the side plate 46. In addition, as one example, the shaft portion 53 is located at an end portion in the-Z direction of the cutout portion 49.

The notch 49 opens in the + Z direction, so that the shaft portion 53 can be separated upward (+ Z direction) in the notch 49. The cutout portion 49 is an example of a through hole through which the shaft portion 53 passes.

The brush 52 is an example of a cleaning member that cleans the front surface 18. Specifically, the brush 52 includes a cylindrical shaft portion 53, and brush portions 54 extending radially from the outer peripheral surface of the shaft portion 53 except for both end portions in the axial direction.

The shaft portions 53 extend in the + X direction and the-X direction from both end surfaces of the brush portion 54 in the X direction. The shaft portion 53 is rotatably supported by a portion of the side plate 46, and is thereby rotatably supported by the storage groove 42. A part of the shaft portion 53 is exposed to the outside of the storage groove 42 beyond the side plate 46. A specific support structure of the shaft portion 53 will be described later.

The brush portion 54 is immersed in the cleaning liquid Q at a part of the brush portion 54, i.e., at an end portion in the-Z direction. Further, brush portion 54 contacts lower surface portion 18C in a state where cleaning unit 40 is raised in the + Z direction. Then, the brush 52 is rotated by a servo motor 72 described later, and thereby cleans dirt such as ink and dust on the surface 18. The dirt such as ink and dust removed by the brush 52 is collected in a part of the storage tank 42.

The squeegee 56 is attached to the vertical wall 45A, and scrapes off the cleaning liquid Q and the like remaining on the lower surface portion 18C after the cleaning by the brush 52 from the lower surface portion 18C. Further, an inner frame 19 (fig. 3) is provided inside a portion of the adhesive tape 17 where the tip end portion of the rubber blade 56 contacts. The inner frame 19 is erected in the X direction in the apparatus main body 12, and supports the adhesive tape 17 from the inside. Thereby, the adhesive tape 17 can resist the pressing force from the rubber blade 56.

The partition wall 58 is provided so as to rise in the + Z direction from the bottom wall 43 at a position closer to the-Y direction than the center in the Y direction in the bottom surface 43A. Further, the partition wall 58 is an example of a partition portion that partitions the bottom in the-Z direction of the chamber portion S into the first chamber SA and the second chamber SB. Specifically, the partition wall 58 includes a lower portion 58A attached to the bottom surface 43A, and an inclined portion 58B extending obliquely upward from an end of the lower portion 58A in the-Y direction toward the-Y direction and the + Z direction. When viewed from the X direction, the position P1 at the upper end of the inclined portion 58B in the + Z direction is located in the-Z direction compared with the position of the center of the shaft portion 53.

As shown in fig. 3, the first chamber SA is located in the + Y direction with respect to the inclined portion 58B. The side plate 46 constituting a part of the first chamber SA is provided with a cutout portion 49, a support plate 62 described later, and a bearing 64 (fig. 5).

The second chamber SB is located in the-Y direction with respect to the inclined portion 58B. The bottom wall 43 of the second chamber SB is provided with a discharge portion 59 for discharging the cleaning liquid Q flowing in from the first chamber SA. As an example, the discharge portion 59 is constituted by a liquid discharge port 59A penetrating the bottom wall portion 43 in the Z direction and a peripheral edge portion of the liquid discharge port 59A. One end of the discharge pipe 61 is connected to the peripheral edge of the liquid discharge port 59A. The other end of the discharge pipe 61 is connected to a recovery unit not shown.

As shown in fig. 5, a support plate 62 and a bearing 64 are provided on the + X direction inner surface 46A of the side plate 46.

The support plate 62 is an example of a support portion that rotatably supports the shaft portion 53. Further, the support plate 62 has a predetermined thickness in the X direction, and is mounted at an edge portion of the cutout portion 49 in the inner side surface 46A using a bolt 65. The support plate 62 is aligned with the notch 49 in the X direction.

The bolt 65 couples and fixes the support plate 62 to the side plate 46 with the position in the-X direction with respect to the side plate 46 facing the + X direction.

The bearing 64 is provided to be rotatable around a central axis, not shown, along the X direction. The shaft 53 is inserted into a hole of the bearing 64.

A first recess 66 and a second recess 67 are formed in the center of the support plate 62 in the Y direction, and are recessed in the-Z direction from the ends of the support plate 62 in the + Z direction.

The first recess 66 is formed in a U shape when viewed from the X direction, and supports the bearing 64 from the-Z direction. The first recess 66 also restricts the movement of the bearing 64 in the Y direction.

The second recess 67 is formed in a U shape when viewed from the X direction. Further, the second recess 67 is formed at the-X direction with respect to the first recess 66.

The width of the second concave portion 67 in the Y direction is substantially equal to the width of the notch portion 49 in the Y direction, and is narrower than the width of the first concave portion 66 in the Y direction. Thus, the peripheral edge portion 68 of the second recess 67 in the support plate 62 restricts the movement of the bearing 64 in the-X direction when viewed from the X direction.

The shaft portion 53 extends from the bearing 64 in the-X direction through the second recess 67 and the cutout portion 49 and further than the side plate 46. The axial direction of the shaft portion 53 is along the X direction.

A coupling fixing hole 69 is formed in the + Z direction upper surface 62A of the support plate 62.

As shown in fig. 6, four recessed portions 71 recessed from the + X direction toward the-X direction are formed in the support plate 62 at the-Y direction portion and the + Y direction portion with respect to the first recessed portion 66.

The recess 71 extends along the Z direction. A through hole 71A penetrating the support plate 62 in the X direction is formed in the bottom of the recessed portion 71. A hexagonal nut 73 is disposed in the recess 71. A bolt 65 is fixed to the hexagonal nut 73. By loosening the fastening state of the bolt 65 to the hexagon nut 73, the position of the support plate 62 in the Z direction can be adjusted. The support plate 62 is provided above the position P2 of the upper end of the dividing wall 58 in the + Z direction. In fig. 6, the rubber blade 56 is not shown.

As shown in fig. 7, an upper cover 78 is provided on the inner surface 46A of the side plate 46 in the + X direction in a state where the support plate 62 is attached.

The upper cover 78 has a crank-like cross-sectional shape when viewed in the Y direction. Specifically, the upper cover 78 is composed of a lateral wall 78A, a vertical wall 78B, and a vertical wall 78C.

Lateral wall 78A is fixed to coupling fixing hole 69 (fig. 5) by bolt 77 in a state of being placed on upper surface 62A (fig. 5) from the + Z direction, and is attached to upper surface 62A.

Vertical wall 78B extends in the-Z direction from the + X direction end of lateral wall 78A, and restricts movement of bearing 64 in the + X direction.

The vertical wall 78C extends in the + Z direction from the end of the horizontal wall 78A in the-X direction, and covers the notch 49 when viewed in the + X direction.

As shown in fig. 4, in the + Z direction, a position P2 of the lower end of the cutout portion 49 is located above a position P1 of the upper end of the partition wall 58. The case where the liquid surface of the cleaning liquid Q is at the highest position in the + Z direction is the case where the liquid surface is at the position P1 of the upper end of the partition wall 58. The liquid surface excess position P1 of the cleaning liquid Q means that the cleaning liquid Q flows from the first chamber SA into the second chamber SB over the partition wall 58. Here, since the position P2 is in the + Z direction as compared with the position P1, the cleaning liquid Q can be prevented from flowing out to the outside of the storage tank 42 through the notch portion 49.

As shown in fig. 2, the servomotor 72 is an example of a driving unit, and generates a driving force for rotating the brush 52 by supplying a current from a power source, not shown. Specifically, the servo motor 72 includes: a motor main body 74, a motor shaft 75, and a drive pulley 76.

The motor main body 74 is attached to the inner side surface 46A of the attached portion 48 from the + X direction at the side plate 46 in the-X direction using the bolt 51. The motor main body 74 is connected to a power supply, not shown.

The motor shaft 75 is formed in a cylindrical shape and extends in the-X direction from the motor main body 74. The end of the motor shaft 75 in the-X direction protrudes in the-X direction from the attached portion 48.

The drive pulley 76 is one example of a second pulley, and is provided on the motor shaft 75. Then, by rotating the motor shaft 75 in the motor main body 74, the drive pulley 76 is rotated around the center axis of the motor shaft 75. In other words, the drive pulley 76 receives the driving force generated by the servomotor 72.

As shown in fig. 8, the servo motor 72 is positioned in the space K below the storage tank 42 in the + Z direction. Specifically, the servo motor 72 is located in the-Z direction with respect to the storage tank 42, in the-X direction with respect to the cylinder 35, and in the + X direction with respect to the side plate 46, when viewed from the + Y direction.

As shown in fig. 9, when the-Z direction is viewed from the position in the + Z direction, the entire servo motor 72 overlaps the storage tank 42. In other words, when the-Z direction is viewed from the position in the + Z direction, the servo motor 72 overlaps the storage groove 42 in the range of the width W1 in the X direction and the range of the width W2 in the Y direction. The region where the servo motor 72 overlaps the storage tank 42 is referred to as a region a.

When the-Z direction is viewed from the position in the + Z direction, the servo motor 72 does not overlap the discharge unit 59 in the X direction and the Y direction.

As shown in fig. 4, the transmission unit 82 is an example of a power transmission unit, is disposed at the outer side of the storage tank 42 in the-X direction, and transmits the driving force of the servomotor 72 to the brush 52.

Specifically, the transmission unit 82 includes: a drive pulley 76, a driven pulley 84, a transfer belt 86, a pulley idler 88, and a slip 92.

The driven pulley 84 is an example of a first pulley, and is provided rotatably at an end of the shaft portion 53 in the-X direction. Further, the driven pulley 84 is located in the + Z direction with respect to the drive pulley 76. The driven pulley 84 is rotatable about the central axis of the shaft portion 53.

The transmission belt 86 is configured as an endless belt in which both ends of a flat plate having elasticity are joined, and has an inner surface 86A on the inside and an outer surface 86B opposite to the inner surface 86A. An inner surface 86A of the transmission belt 86 is wound around the drive pulley 76 and the driven pulley 84.

A pulley idle pulley 88 is in contact with a portion of the transmission belt 86 that is located in the-Y direction and linearly extends in the Z direction with respect to the center of the shaft portion 53.

The sliding portion 92 includes: a slide plate 93, a fulcrum 94, and a bolt 95. The sliding plate 93 has a predetermined thickness in the X direction. The side plate 46 is provided with a guide rail, not shown, for guiding the slide plate 93 in the Y direction. Further, the slide plate 93 is formed in a rectangular shape having a longer dimension in the Y direction than in the Z direction when viewed from the-X direction. The slide plate 93 has a guide hole 93A formed therein, which penetrates the slide plate 93 in the X direction. The guide hole 93A is a long hole extending in the Y direction.

The support shaft 94 extends in the-X direction from a position in the + Y direction with respect to the guide hole 93A in the slide plate 93. The support shaft 94 is formed in a cylindrical shape.

A pulley idler 88 is rotatably provided on an end of the fulcrum shaft 94 in the-X direction. Pulley idler 88 is rotatable about the central axis of fulcrum 94. Further, the outer peripheral surface of the pulley idle pulley 88 contacts the transmission belt 86 from the-Y direction toward the + Y direction. The pulley idler pulley 88 and the sliding portion 92 are an example of a tension adjusting portion that adjusts the tension acting on the transmission belt 86.

The pulley idler pulley 88 is an example of a pressing portion that presses a part of the outer surface 86B of the transmission belt 86 in the + Y direction. When the transmission belt 86 is rotationally driven by the servo motor 72, the pulley idler pulley 88 is driven to rotate as the transmission belt 86 moves around.

When the tension acting on the transmission belt 86 is increased, the sliding plate 93 is moved in the + Y direction with the bolt 95 loosened, and the bolt 95 is tightened. On the other hand, when the tension acting on the transmission belt 86 is reduced, the bolt 95 is tightened by moving the slide plate 93 in the-Y direction with the bolt 95 loosened.

The transfer unit 82 is covered by a protective cover 96 from the-X direction.

The protective cover 96 is formed in a box shape that opens in the + X direction, and houses the transmission unit 82 therein. As one example, the protector cap 96 is formed with flange portions 97 at the + Z direction end and the-Z direction end. Flange portion 97 is coupled and fixed to side plate 46 by using bolt 98.

Next, the operation of the printer 10 will be described with reference to fig. 1 to 9. Note that the description of individual reference numerals is omitted.

According to the printer 10, the brush 52 is rotated by transmitting the driving force from the servo motor 72 to the shaft portion 53 via the transmission unit 82, and the front surface 18 of the adhesive tape 17 is cleaned. Here, since the shaft portion 53 is exposed to the outside of the storage tank 42, the transfer unit 82 is not immersed in the cleaning liquid Q in the storage tank 42, and therefore, foreign matter generated from the transfer unit 82 is not mixed into the cleaning liquid Q. This suppresses damage to the surface 18 of the tape 17 by foreign matter, and thus can suppress a decrease in the durability of the tape 17.

The partition wall 58 partitions the interior of the retention tank 42 into a first chamber SA and a second chamber SB. The cleaning liquid Q overflowing from the first chamber SA due to the rotation of the brush 52 or the like flows over the partition wall 58 into the second chamber SB. Then, the cleaning liquid Q flowing into the second chamber SB is discharged through the discharge portion 59. In this way, the partition wall 58 and the discharge portion 59 limit the liquid level of the cleaning liquid Q inside the first chamber SA.

According to the printer 10, when the cleaning liquid Q flows into the second chamber SB beyond the partitioning wall 58, the notch portion 49 is provided above the upper end of the partitioning wall 58 in the + Z direction, and the cleaning liquid Q is prevented from leaking to the outside of the storage tank 42 through the notch portion 49 and the shaft portion 53, and therefore, the cleaning liquid Q can be prevented from leaking to the outside of the storage tank 42 without providing a member that is likely to deteriorate over time, such as a seal member.

According to the printer 10, the space portion K is formed below the storage tank 42 by the support unit 30. The servo motor 72 is located in the space K. Thus, the space K below the storage tank 42 is effectively used, and hence the printer 10 can be made space-saving in the + Z direction.

According to the printer 10, since the entire servo motor 72 is positioned in the space portion K, the printer 10 can be further reduced in space as compared with a configuration in which a part of the servo motor 72 protrudes from the space portion K.

According to the printer 10, even if the cleaning liquid Q leaks outside the storage tank 42 through the discharge portion 59, the servo motor 72 is not provided below the discharge portion 59, and therefore, the cleaning liquid Q can be prevented from splashing on the servo motor 72.

According to the printer 10, since the brush 52 is detached from the storage tank 42 by detaching the shaft portion 53 from the side plate 46 in the notch portion 49, the maintenance operation of the brush 52 can be easily performed. Further, since not only the notch portion 49 but also the support plate 62 is disposed above the upper end of the partition wall 58, it is possible to suppress the cleaning liquid Q from leaking to the outside of the storage tank 42 through the notch portion 49.

According to the printer 10, since the driving force is transmitted by the transmission belt 86, it is possible to reduce the influence of noise and backlash due to contact of the components, as compared with a configuration in which the transmission unit 82 includes a chain or a configuration in which the transmission unit 82 includes only a plurality of gears.

In order to transmit the driving force to the shaft portion 53, the transmission belt 86 needs to be wound around the driven pulley 84 and the drive pulley 76 with a predetermined tension applied thereto.

However, in the configuration using the transmission belt 86 having the circumferential length for realizing the predetermined tension, when the brush 52 or the transmission belt 86 is replaced, it is necessary to detach the transmission belt 86 from the driven pulley 84 and the drive pulley 76 while applying the tension exceeding the predetermined tension to the transmission belt 86, and the workability when detaching the transmission belt 86 is deteriorated.

Here, according to the printer 10, even if the transmission belt 86 having a circumferential length that achieves a tension smaller than the predetermined tension is used, the tension acting on the transmission belt 86 can be adjusted by the pulley idle pulley 88 and the sliding portion 92 after the transmission belt 86 is wound around the driven pulley 84 and the drive pulley 76, and a desired tension can be applied, so that the workability when the brush 52 or the transmission belt 86 is removed can be improved.

According to the printer 10, the outer surface 86B of the transmission belt 86 is pressed by the pulley idler 88, so that the transmission belt 86 is deformed inward. Accordingly, since the amount of winding of the transmission belt 86 around the driven pulley 84 and the drive pulley 76 is increased, and the transmission belt 86 is prevented from slipping off the outer peripheral surfaces of the driven pulley 84 and the drive pulley 76, the transmission of the driving force from the servo motor 72 to the shaft portion 53 can be stabilized.

According to the printer 10, since the pulley idle pulley 88, which is an example of the pressing portion, performs the driven rotation in accordance with the circumferential movement of the transmission belt 86, the pulley idle pulley 88 is suppressed from becoming a resistance load to the movement of the transmission belt 86 when the transmission belt 86 transmits the driving force, and the increase in the rated capacity of the servo motor 72 can be suppressed. This can suppress an increase in size of the printer 10 due to an increase in size of the servo motor 72.

Although the printer 10 according to the embodiment of the present invention is a printer based on the configuration described above, it is obvious that modifications, omissions, and the like of the partial configuration may be performed without departing from the scope of the present invention.

In the printer 10, the entire brush 52 may be immersed in the cleaning liquid Q. In this structure, a member for closing the notch 49 may be provided.

The printer 10 may not have the discharge portion 59 and the partition wall 58.

The servo motor 72 may be located not in the space K but in the + Y direction or the-Y direction with respect to the space K or the-X direction with respect to the transfer unit 82. The storage tank 42 may not have the space portion K in the-Z direction. The servo motor 72 may be located at a position partially overlapping the storage tank 42 when viewed from the + Z direction. Further, the servo motor 72 may be located at a position partially overlapping the discharge portion 59 when viewed from the + Z direction.

The position of the lower end of the cutout portion 49 may be lower than the position of the upper end of the partition wall 58. In this structure, a member for closing the notch 49 may be provided.

The support plate 62 and the bearing 64 may also be provided on the outer side surface in the-X direction of the side plate 46.

The transmission unit 82 may include a pinion gear and a plurality of gears instead of the driven pulley 84, the drive pulley 76, and the transmission belt 86. Further, the transmission unit 82 may also transmit the driving force using a chain. Further, the transmission unit 82 may apply tension to the transmission belt 86 by elastically deforming the transmission belt 86 and winding the transmission belt 86 around the driven pulley 84 and the drive pulley 76 without using the pulley idle pulley 88.

The pulley idler 88 may also be in contact with the inner surface 86A of the transfer belt 86. Instead of the pulley idler 88, a non-rotating sliding member may be brought into contact with the transmission belt 86.

Examples of the medium M include a fabric, a paper, and a film. The positioning method for conveying the medium M may be either a center positioning method in which the center position in the X direction is set as a reference, or a side positioning method in which the position of one end in the X direction is set as a reference.

The recording unit 20 is not limited to a unit that performs recording in a serial manner like the recording head 21, and may be a unit that performs recording in a line manner.

The conveyor belt is not limited to the adhesive tape 17, and various kinds of belts using an adsorption force developing mechanism such as an electrostatic adsorption method using an electrostatic force generated by an applied voltage, a vacuum suction method using a compressor, an intermolecular force method using a plurality of minute protrusions, or the like can be used.

Instead of the washing brush 52, a sponge roller may be used as the cleaning member.

The shaft portion is not limited to a cylindrical shaft portion such as the shaft portion 53, and a prismatic shaft portion may be used.

The notch 49 is not limited to a notch cut in the-Z direction, and may be cut in the + Y direction, the-Y direction, or a cross direction intersecting both the Y direction and the Z direction. The shape of the cutout 49 is not limited to the U shape, and may be a polygonal shape such as a rectangle or a triangle.

The tension adjusting portion is not limited to the mechanism constituted by the pulley idle pulley 88 and the sliding portion 92, and may be a mechanism that adjusts the tension acting on the transmission belt 86 by changing the distance from the drive pulley 76 to the driven pulley 84.

Description of the symbols

1 … plant; 2 … floor part; 4 … floor surface; 10 … printer; 12 … device body portion; 14 … main body cover; 16 … a conveying unit; 16a … drive roller; 16B … driven rollers; 17 … adhesive tape; 18 … surface; 18a … upper surface portion; 18B … curved surface; 18C … lower surface portion; 19 … inner frame; a 20 … recording unit, a 21 … recording head; 22 … carriage; 26 … control unit; 30 … support element; 31 … arm frame; 32 … mounting a frame; 33 … foot frame; a 35 … cylinder; 36 … a body portion; 37 … movable part; 39 … caster wheels; 40 … cleaning unit; 42 … retention tank; 43 … bottom wall portion; 43A … bottom surface; 44 … front wall portion; 45 … rear wall portion; 45a … longitudinal walls; 45B … longitudinal walls; 46 … side panels; 46A … medial side; 47 … side portion; 48 … are mounted; 49 … cut-out portion; 51 … bolt; 52 … cleaning brush; 53 … shaft portion; 54 … brush portion; 56 … rubber blades; 58 … dividing the wall; 58a … lower portion; 58B … slope; a 59 … discharge; 59A … drain port; 61 … discharge pipe; 62 … a support plate; 62a … upper surface; a 64 … bearing; 65 … bolt; 66 … first recess; 67 … a second recess; 68 … peripheral edge portions; 69 … engage the fixation holes; 71 … recess; 71A … through the hole; 72 … servomotor; 73 … hex nut; 74 … motor body portion; 75 … motor shaft; 76 … drive pulley; 77 … bolt; 78 … an upper cover; 78a … transverse wall; 78B … longitudinal walls; 78C … longitudinal walls; 82 … transfer unit; 84 … driven pulley; 86 … transfer belt; 86a … inner surface; 86B … outer surface; 88 … pulley idler; 92 … sliding part; 93 … a slide plate; 93a … guide hole; 94 fulcrum shaft 94 …; 95 … bolt; 96 … protective cover; 97 … flange portion; 98 … bolt; region a …; a K … space part; m … medium; position P1 …; position P2 …; q … cleaning fluid; an S … cell portion; SA … first chamber; SB … second chamber; a W1 … width; w2 … width.

Claims (10)

1. A recording device, characterized in that, comprising: a recording section capable of recording on a medium; a conveyor belt capable of conveying the medium; a storage tank that stores the cleaning liquid used for cleaning the surface of the conveyor belt; a cleaning member, at least a part of which is immersed in the cleaning solution and rotated to clean the surface; a driving part that generates a driving force for rotating the cleaning member; a power transmission unit that transmits the driving force of the driving unit to the cleaning member, The cleaning member has a shaft portion that is rotatably supported by the storage tank and exposed to the outside of the storage tank, The power transmission portion is disposed outside the storage tank, and transmits the driving force of the driving portion to the shaft portion. 2. The recording device of claim 1, wherein The holding tank has: bottom wall; a side wall portion, which together with the bottom wall portion forms a chamber portion; a dividing portion that is erected from the bottom wall portion and divides the chamber portion into a first chamber and a second chamber, The side wall portion of the first chamber is provided with a through hole through which the shaft portion passes, The bottom wall portion of the second chamber is provided with a discharge portion for discharging the cleaning liquid flowing in from the first chamber, The through-hole is provided above the upper end of the dividing portion in the apparatus height direction intersecting with the bottom wall portion. 3. The recording device according to claim 2, wherein including a support leg that is supported on a device installation surface and supports the storage tank from below in the device height direction, Below the storage tank, a space is formed by the support leg, At least a part of the said drive part is located in the said space part below the said storage tank in the said apparatus height direction. 4. The recording device of claim 3, wherein When viewed from the apparatus height direction, the entirety of the drive unit overlaps with the storage tank. 5. The recording apparatus of claim 3 or claim 4, wherein The drive part and the discharge part do not overlap when viewed from the device height direction. 6. The recording device of claim 2, wherein The side wall portion is provided with a support portion that rotatably supports the shaft portion, The through hole is a cutout portion that enables the shaft portion to be detached upward in the height direction of the device, The support portion is aligned with the cutout portion in the axial direction of the shaft portion intersecting with the height direction of the device, In the apparatus height direction, the lower end of the notch portion is positioned above the upper end of the dividing portion. 7. The recording device of claim 1, wherein The power transmission portion includes a transmission belt. 8. The recording device of claim 7, wherein On the shaft portion, a first pulley is provided, The drive unit is provided with a second pulley that receives the generated drive force, The transfer belt is wound on the first pulley and the second pulley, The transfer belt is provided with a tension adjusting portion that adjusts the tension acting on the transfer belt. 9. The recording device of claim 8, wherein The tension adjusting portion includes a pressing portion that presses an outer surface of the transfer belt opposite to an inner surface wound around the first pulley and the second pulley. 10. The recording device of claim 9, wherein The pressing portion has a pulley idler that is driven to rotate in accordance with the circumferential movement of the transmission belt.

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