KR20120046681A - Cutting device - Google Patents

Abstract

Provided is a cutting device capable of cutting a plate-like object which is intermittently transferred sequentially so that a cut piece does not occur.
In the cutting device 30 which cut | disconnects the plate-shaped object 10 intermittently conveyed in a predetermined direction in a conveyance direction, and forms several strip | belt-shaped material, it arrange | positions on the upper surface side of the plate-shaped body 10. The upper edge 42 at the time of cutting | disconnecting the lower edge 44 and the plate-shaped object 10 arrange | positioned at the lower surface side of the plate-shaped object 10 so that the upper edge 42 and the upper edge 42 which may be engaged may be engaged. ) And drive means 47 and 58 for driving at least one of the upper blade and the lower blade to engage the lower blade 44 with the upper blade 42 and the lower blade 44. It is arrange | positioned so that it may always engage on the downstream side of the conveyance direction of (), and it arrange | positions so that it may engage at the time of cutting on the upstream side of the conveyance direction of a plate-shaped object.

Description

Cutting device {CUTTING DEVICE}

This invention relates to the cutting device which forms a strip | belt-shaped body by cutting | disconnecting the plate-shaped object intermittently conveyed in a predetermined direction to a conveyance direction.

Fig. 12 shows fins for heat exchangers used in the heat dissipation portion of the heat exchanger. A wide metal plate-like body (metal stripe body) in which a plurality of rows of collar rows in which a plurality of collars are formed in a row are formed in a row in a plurality of collars (12, 12 ??) having a plurality of collars into which heat radiating tubes are inserted in a lengthwise direction ( 10) is made of.

The metal strip 10 is cut in the longitudinal direction, a plurality of narrow strips having a plurality of rows of colored strings are formed, and the strips are subsequently cut to a predetermined length to form a strip-shaped strip. Is formed.

Manufacture of the heat exchanger fin is performed using the press apparatus 18 shown in FIG.

In the press apparatus 18, the metal strip | belt-shaped body 10 which consists of metals, such as aluminum which is a to-be-processed material for heat exchangers, is taken out through the pinch roll 16 from the uncoiler 14 wound by coil shape. The withdrawn metal strip 10 is inserted into the oil applying apparatus 20, and after processing oil adheres to the surface, it is intermittently transferred to the mold apparatus 22 provided in the press apparatus 18. FIG.

The mold apparatus 22 is a conveying metal mold | die sequentially, The upper die set 22a which can be moved up and down inside, and the lower die set 22b which are in a stationary state are provided. In the metal strip 10 that passed through the mold apparatus 22, a plurality of rows of collars in which collared perforations 12 and 12 ?? are formed in a line in the conveying direction (the longitudinal direction of the metal strip 10). The metal strip 10 is formed in the width direction.

The metal strip 10 is cut in the longitudinal direction by the cutting device 24 to form a narrow strip of plural sheets having a plurality of rows of colored columns formed thereon. Subsequently, the strip-shaped material is cut to have a predetermined length and accommodated in the stacker 26 as strip-shaped strips.

The conventional cutting device 24 is shown in FIG.

In the conventional cutting device 24, a cutting blade 100 for cutting the metal strip 10 is disposed on the upper and lower sides of the metal strip 10, and the metal strip 10 is cut between the upper and lower sides. It fits in the blade part of a blade tip, and is cut | disconnected (for example, refer patent document 1).

The cutting blade 100 is formed in the shape of elongate in the longitudinal direction of the metal strip 10, and is arrange | positioned in multiple numbers between the rows of fins to form.

The cutting blade 100 is disposed on the upper surface side of the metal strip 10, and moves to the lower side of the movable cutting blade 100a and the lower surface of the metal strip 10, and corresponds to the movable cutting blade. It has the fixed cutting edge 100b which cuts a metal strip | belt-shaped body with 100a.

Moreover, the movable cutting blade 100a is being fixed to the movable die 36 which moves to an up-down direction, and the movable die 36 is moved up and down by the drive device which is not shown in figure. As a drive device, the hydraulic cylinder etc. which operate the upper die | dye set 22a to an up-down direction in the die apparatus 22 can be used.

Japanese Patent Publication No. 2007-54901

The state of the conventional cutting | disconnection is shown in FIGS. 15-16.

In the conventional cutting device 24, the movable die 36 was moved up and down by using the up and down movement of the press in the mold apparatus 22, and it was made to cut | disconnect when the movable cutting blade 100a fell. However, when conveying the metal strip | belt-shaped object after cutting in a conveyance direction, and cutting again from the position which should be cut next, if the position already cut | disconnected and the position to be cut next may shift | deviate, There is a problem that a cut piece (so-called beard shape) is produced.

If the cutting position shifts when the conveyance amount at the time of conveyance of a metal strip | belt-shaped object is fixed, a short cut piece will generate | occur | produce as shown in FIG.

Moreover, when changing the conveyance amount of a metal strip | belt-shaped object during processing, since the overlap part of the position which has already been cut | disconnected, and the position to cut | disconnect next becomes long, a long cut piece will generate | occur | produce as shown in FIG. In this way, especially when there is a change in the feed amount, since long cut pieces are generated, care must be taken in order to stably supply a uniform product.

Then, this invention is made | formed in order to solve the said subject, The objective is to provide the cutting device which can cut the metal strip | belt-shaped object conveyed intermittently and sequentially so that a cutting piece may not arise.

According to the cutting device which concerns on this invention, the cutting device which cut | disconnects the plate-shaped object intermittently conveyed sequentially to a predetermined direction in a conveyance direction, and forms a narrow strip | belt-shaped material of several sheets is arrange | positioned at the upper surface side of a plate-shaped object. The upper blade and the lower blade disposed on the lower surface side of the plate-like body to be engaged with the upper blade, and the upper blade and the lower blade to engage the upper blade and the lower blade when the plate-shaped body is cut. Drive means for driving at least one of the upper and lower blades so that the upper blade and the lower blade are always engaged on the downstream side of the conveying direction of the plate-like object, and at the time of cutting on the upstream side of the conveying direction of the plate-like object. It is arrange | positioned so that it may interlock.

The effect by employ | adopting this structure is as follows.

Since the upper blade and the lower blade always engage on the downstream side in the conveying direction, the interlocked upper blade and the lower edge are arranged at the end of the cut point (the end of the upstream side in the conveying direction at the cut point). For this reason, when starting a cutting operation | movement next, the cutting point already cut | disconnected and the place which starts cutting | disconnection anew will not shift | deviate, and generation | occurrence | production of the cutting piece based on the shift | offset | difference of a cutting point can be prevented.

Moreover, the said drive means drives at least one of the said upper blade and the said lower blade so that the said upper blade and the said lower blade may gradually engage from the downstream side of the conveyance direction of a plate-shaped object toward an upstream side, It is characterized by the above-mentioned. have.

According to this structure, since the cutting | disconnection is gradually made toward the upstream side of a conveyance direction from the location where the engagement has already generate | occur | produced, generation | occurrence | production of the cutting piece based on the shift | offset | difference of a cutting point can be prevented.

Moreover, the said drive means is connected with the conveying apparatus of a plate-shaped object, and has a link mechanism which converts the movement in the conveyance direction of a conveying apparatus into the rotational motion in a perpendicular plane, The conveying operation of a conveying apparatus by this link mechanism The upper blade or the lower blade rotates about a predetermined pivot center located on the downstream side in the conveying direction of the plate-shaped object, and the upper edge and the lower edge are upstream from the downstream side in the conveying direction of the plate-shaped object. It may be characterized by operating so as to gradually engage toward the side.

Moreover, the said link mechanism may be able to cut | disconnect plate-shaped object to the length based on the conveyance amount of a conveying apparatus by the said upper edge or the lower blade operating at the rotation angle based on the conveyance amount of a conveying apparatus.

According to this structure, since it can be set as the cutting length according to the movement amount of a plate-shaped object, even if the movement amount of a plate-shaped object is small, it can be made not to produce a long cut piece.

Moreover, the upper mold | type with which the said upper edge is fixed, the rotation shaft provided in the predetermined location downstream of the conveyance direction of this plate-shaped object of this upper mold, and the upper mold was rotatably installed in a perpendicular plane, and pressurizing the said upper mold toward upwards. The upper edge and the lower edge are formed by rotating the upper mold around the rotational shaft by pressing the pressing means and the upstream side in the conveying direction of the plate-shaped body of the upper mold from the upper side in response to the pressing force of the pressing means. It may be characterized by including pressing means which is operated so as to gradually engage from the downstream side in the conveying direction of the upper body toward the upstream side.

According to this structure, the plate-shaped object can be intermittently cut | disconnected by a simple structure so that a cut piece may not be produced.

According to this invention, generation | occurrence | production of a cut piece can be prevented when cutting a plate-shaped object.

1 (a) to 1 (e) are conceptual views illustrating a cutting device according to the present invention.
2 is a front view of a first embodiment of a cutting device.
3 is a side view of the first embodiment of the cutting device.
It is a side view of 1st Embodiment which shows that the upper blade was driven from the state of FIG.
It is a side view of 1st Embodiment which shows that cutting | disconnection was completed by driving an upper blade further from the state of FIG.
6 is a plan view of a second embodiment of a cutting device.
7 is a cross-sectional view taken along line AA of FIG. 6.
8 is a cross-sectional view taken along line BB of FIG. 6.
9 is a side view of a second embodiment of a cutting device.
It is a side view of 2nd Embodiment which shows that the upper blade was driven from the state of FIG.
It is a side view of 2nd Embodiment which shows that cutting | disconnection was completed by driving an upper blade further from the state of FIG.
It is a top view of the metal strip | belt-shaped body in which the fin for heat exchangers is formed.
It is explanatory drawing of the manufacturing apparatus which manufactures the heat exchanger fin.
14 is a side view of a conventional cutting device.
It is explanatory drawing explaining the generation | occurrence | production of the cutting piece by the conventional cutting device.
It is explanatory drawing explaining generation | occurrence | production of the long cut piece by the conventional cutting device.

Preferred embodiments of the cutting device according to the present invention are described below.

In addition, although the cutting device 30 of this invention is installed in the heat exchanger fin manufacturing apparatus demonstrated by the prior art, FIG. 13 is used for the whole structure of the heat exchanger fin manufacturing apparatus, and it demonstrates here the whole structure. Omit.

First, the principle conceptual diagram of this invention is shown to FIG. 1 (a)-FIG. 1 (e), and the structure and cutting | disconnection operation | movement of the upper blade 42 and the lower blade 44 are demonstrated.

The cutting device 30 has an upper blade 42 disposed on the upper surface side of the plate-shaped body 10 and a lower blade 44 disposed on the lower surface side of the plate-shaped body 10. The upper blade 42 and the lower blade 44 are elongated in the conveying direction of the plate-shaped body 10, and the upper blade 42 and the lower blade which meshed the plate-shaped body 10 intermittently conveyed in a predetermined direction ( 44) and a long band-like material is produced in the conveying direction.

In addition, the plate-shaped object mentioned in the claim is specifically a metal strip | belt-shaped body in which the perforation with a collar was formed in this embodiment.

The upper blade 42 and the lower blade 44 in the present invention are arranged so as to always engage on the downstream side in the conveying direction of the metal strip 10. Specifically, the lower blade 44 is fixedly arranged so that the blade edge is horizontal. The upper blade 42 is located upstream from the downstream side of the conveying direction such that the downstream side in the conveying direction of the metal strip always meshes with the lower edge 44 and is positioned above the edge of the lower edge 44 in the conveying direction. It is arranged obliquely upward over the.

In the present embodiment, the upper blade 42 is a movable blade, and at the time of cutting, the upper blade 42 is centered about the downstream side in the transport direction such that the upper blade 42 gradually engages with the lower blade 44 from the downstream side in the transport direction toward the upstream side. Rotate so that the upstream side of the conveying direction is lowered.

(A) of FIG. 1 is a state before cutting | disconnection. In the metal strip 10, the rear-end | tip of the conveyance direction of the cutting point already cut | disconnected by the previous cutting operation becomes a reference | standard position, and the upper blade and the lower blade are engaged in this position.

Next, as shown in FIG.1 (b), cutting | disconnection is performed by rotating the upstream side downward centering about the predetermined position of the downstream side of a conveyance direction.

In FIG.1 (c), the whole longitudinal direction of the upper blade 42 and the lower blade 44 was engaged, and cutting is completed in this position.

In (d) of FIG. 1, the upper blade 42 is rotated to the upstream side centering on the predetermined position of the downstream side of a conveyance direction, and the engagement with the lower blade 44 is canceled, and also shown in FIG. By the conveyance operation | movement of the conveying apparatus which is not performed, the metal strip | belt-shaped object 10 is conveyed in a conveyance direction.

In Fig.1 (e), the cutting operation | movement upstream end part of a cutting point reaches a reference | standard position, a conveyance operation | movement stops, and rotation to the upper side of the upper blade 42 stops, and one cutting operation | movement is completed. . And it can work on the following cutting | disconnection operation | movement (FIG.1 (a)).

In this way, the upper blade 42 and the lower blade 44 are always engaged at the upstream end portion in the conveying direction of the preceding cutting point, and the next cutting operation is also performed by the upper blade 42 and the lower blade 44. It can be started in the engaged state. At this time, since the cutting edge of the engaged state was arrange | positioned in the upstream end part of the conveyance direction of a previous cutting point, it prevents that the previous cutting point and the next cutting point are shift | deviated, and generation | occurrence | production of a cutting piece (whisker-shaped) Can be prevented.

(First embodiment)

Next, 1st Embodiment which concerns on the cutting device of this invention is demonstrated based on FIG.

2 shows what is seen from the downstream side of the conveyance direction of a metal strip | belt-shaped body, and FIGS. 3-5 has shown what was seen from the side of the conveyance direction of a metal strip-shaped object.

The plurality of upper blades 42 are fixed to an upper mold block 46 positioned above each upper blade 42, and the upper mold blocks 46 are fixed to the lower surface of the upper mold plate 48. This upper mold | type block 46 and the upper mold | type plate 48 correspond to the upper mold | type said in a claim.

The rotating shaft 47 is provided in the width direction edge part with respect to the conveyance direction of the upper die plate 48, and the upper die plate 48 is provided so that it may rotate freely in a perpendicular surface centering on the rotation axis 47. As shown in FIG. The rotating shaft 47 is supported by the base block 51 via the bearing 49. The pivot shaft 47 is disposed downstream of the conveying direction of the upper die plate 48.

Since FIG. 2 is seen from the downstream side in the conveying direction, the upper blade 42 and the lower blade 44 are always in engagement with each other.

The lower blade 44 is fixed to the lower mold block 59 disposed below the lower blade 44, and the lower mold block 59 is fixed to the upper surface of the lower mold plate 50. The lower mold plate 50 and the lower mold block 59 are fixed to each other without being moved. Therefore, the lower blade 44 is provided as a fixed blade with respect to the upper blade 42 which is a movable blade.

The lower surface of the upper die plate 48 is provided with a pressing means 52 that pushes the upper die plate 48 down from the bottom. The pressurizing means 52 comprises a pin 54 which abuts against the lower surface of the upper plate 48, a spring 55 which pushes the pin 54 down from the bottom, and a pin 54 and the spring 55 of the pin 54. It has the case 56 which covers the periphery.

The pin 54 is in contact with the lower surface of the upstream side of the upper die plate 48 in the conveying direction, and is raised upstream of the upper die plate 48 in the conveying direction about the pivot shaft 47.

Above the upper plate 48, a pressing means 58 is provided intermittently to descend at a predetermined timing to press the upper surface of the upper plate 48. The pressing means 58 includes a base portion 58a which operates in conjunction with the up-and-down movement from the mold apparatus 22 (see FIG. 13), which is not shown, and a contact portion which projects downward from the base portion 58a. 58b). The up-down movement of the mold apparatus 22 is performed by a hydraulic cylinder or the like.

When the pressing means 58 descends and presses the upstream side of the upper direction of the upper plate 48 in the upward direction, the upper plate 48 lowers while compressing the spring 55, and lowers the upper blade 42 so as to lower the upper direction. The metal strip 10 is gradually cut from the downstream side toward the upstream side.

In addition, the drive means said in the claim corresponds to the upper block 46, the upper plate 48, the press means 52, and the press means 58.

In addition, although abbreviate | omitted in FIG. 2, the unit press part which contacts the upper surface of the upstream edge part of the upper direction plate of the upper plate 48 in the conveyance direction, and restrict | limits the upper end position of the upper plate 48 is shown. 60 is provided.

As a result, the upper plate 48 can be prevented from being excessively raised by the pressing means 52.

3 is a state before the start of cutting, and the upper die plate 48 fixing the upper edge 42 is pressed upward by the pressing means 52, and the upper surface is fitted to the lower surface of the unit pressing portion 60. FIG. It is positioned so that it is approximately horizontal to touch. At this time, as shown in the enlarged view on the left side of FIG. 3, the engagement of the upper blade 42 and the lower blade 44 is only the downstream side in the conveying direction.

4 shows that the pressing means 58 descends, and the lower end portion of the contact portion 58b of the pressing means 58 abuts on the upper surface of the upper die plate 48. The contact position by the contact part 58b of the press means 58 is an upstream side of a conveyance direction rather than the position where the rotation shaft 47 is provided.

In FIG. 5, the pressing means 58 descends more than the state of FIG. 4, and the contact part 58b presses the upstream side of a conveyance direction rather than the rotation shaft 47 of the upper plate 48. As shown in FIG. Then, the upper plate 48, which is freely held in the vertical plane by the rotation shaft 47, resists the pressing force of the pressing means 52, and the upstream side of the upper direction of the conveyance direction is downward with respect to the rotation shaft 47. Rotate to move For this reason, the upper blade 42 descends, meshes with the lower blade 44 as a whole in the long direction (transfer direction), and the cutting of the metal strip 10 is completed.

(2nd embodiment)

Next, based on FIGS. 6-11, 2nd Embodiment of the cutting device which concerns on this invention is described. In addition, the same code | symbol is attached | subjected about the component same as 1st Embodiment, and description may be abbreviate | omitted.

In addition, in this embodiment, the link mechanism which changes the movement operation | movement in the conveyance direction of the reciprocating unit 72 of the conveying apparatus 70 to the rotation operation in the perpendicular surface of the upper blade 42 is employ | adopted, and The specific configuration and operation will be described.

It is a top view of the conveying apparatus of the metal strip | belt-shaped object to which the cutting device and the cutting device were connected. FIG. 7 is a cross-sectional view along the line A-A in FIG. 6, and FIG. 8 is a cross-sectional view along the line B-B in FIG. 6. The plurality of upper blades 42 are fixed to the upper block 46, and the upper block 46 is fixed to the upper plate 48.

Rotating shafts 47 are provided on both side surfaces of the upper plate 48 in the width direction (the direction orthogonal to the conveying direction of the metal strip body). The upper plate 48 can be rotated in the vertical plane about the rotation shaft 47 in accordance with the rotation operation of the rotation shaft 47. The rotating shaft 47 is supported by the base block 51 via the bearing 49. The pivot shaft 47 is disposed downstream of the conveying direction of the upper die plate 48.

Link member 62 for driving the rotation shaft 47 is connected to the outer end part of each rotation shaft 47, respectively.

An arc-shaped groove 65 connected to the second link member 64 that transmits the operation from the conveying device 70 is formed at an upper portion of the link member 62 on the downstream side in the conveying direction. The pin 66 provided in the upper end part of the 2nd link member 64 is inserted in the arc-shaped groove 65. The pin 66 is movable in the arc-shaped groove 65 in accordance with the operation of the second link member 64. As the pin 66 operates in the arc-shaped groove 65, the pin 66 rotates the transport direction downstream side of the link member 62 about the transport direction upstream side.

The second link member 64 has an upper end connected to the link member 62 via a pin 66, and a lower end connected to the reciprocating unit 72 of the transfer device 70 through the pin 69. The lower end of the second link member 64 is formed with a straight groove 73 extending in the longitudinal direction of the second link member 64, the pin 69 extending laterally and fixed from the reciprocating unit 72. It is inserted into this straight groove 73.

Moreover, the rotation of the 2nd link member 64 is maintained in the vertical surface centering on the fixed shaft 67 in the substantially center of the up-down direction.

Since the pin 69 moves in the horizontal direction together with the reciprocating unit 72, the pin 69 presses the lower end of the second link member 64 so that the lower end of the second link member 64 is fixed to the fixed shaft 67. Rotate around the center.

As described above, when the reciprocating unit 72 of the transfer device 70 moves in the horizontal direction, the lower end of the second link member 64 is also pulled by the pin 69 and rotates. Since the second link member 64 is rotated about the fixed shaft 67 provided at approximately the center in the vertical direction, the upper end of the second link member 64 operates to rotate in the opposite direction to the rotation direction of the lower end portion.

Here, the transfer device 70 will be described.

The conveying apparatus 70 is an apparatus for intermittently conveying the metal strip 10 in the conveying direction, and the reciprocating unit 72 movable in the horizontal direction reciprocates between the initial position and the conveying position to move the metal strip 10. Tow. In the upper surface of the reciprocating unit 72, the transfer pin 76 protrudes upward, and the transfer pin 76 is disposed in the collared through hole 12 (see Fig. 12) formed in the metal strip 10. The metal strip 10 moves to the conveyance position (state of FIG. 9) by entering from below and the conveyance pin 76 pulling the collared perforation 12. As shown in FIG.

When the metal strip 10 reaches the transfer position, the movement of the reciprocating unit 72 is stopped, and the transfer pin 76 is lowered to exit downward from the collared through hole 12. When the feed pin 76 is lowered, the reciprocating unit 72 starts moving to the initial position (state of FIG. 10).

Then, when the reciprocating unit 72 reaches the initial position, the movement of the reciprocating unit 72 is stopped (state of FIG. 11). Then, the transfer pin 76 is raised to enter the through hole 12 with the collar of the metal strip 10, and the metal strip 10 is in a state capable of being transferred.

9-11, the operation | movement of the cutting device 30 which cut | disconnects the metal strip | belt-shaped body 10 in conjunction with the conveyance operation | movement of the conveying apparatus 70 is demonstrated.

As shown in FIG. 9, the cutting operation is started from the state in which the metal strip 10 is sent to the transfer position by the transfer apparatus 70. In this position, the reciprocating unit 72 of the conveying device 70 is conveyed to the conveying direction side in the drawing right direction.

At this time, the lower end of the second link member 64 connected to the reciprocating unit 72 is moved in the conveying direction by the pin 69 protruding from the side surface of the reciprocating unit 72. For this reason, the upper end of the second link member 64 is moved in the direction opposite to the conveying direction, and the pin 66 is disposed at an upstream end of the arc-shaped groove 65 of the link member 62 in the conveying direction. do.

Next, as shown in FIG. 10, when the reciprocating unit 72 moves in the direction opposite to the conveying direction in order to return to the initial position, the pin 69 protruding from the side surface of the reciprocating unit 72 is a straight groove. In 73, the lower end of the second link member 64 is pushed in the direction opposite to the conveying direction. The second link member 64 is rotated about the fixed shaft 67 by the lower end pressed in the direction opposite to the transfer direction, and the upper end moves in the transfer direction.

When the upper end of the second link member 64 moves in the conveying direction, the pin 66 of the upper end of the second link member 64 moves in the arc-shaped groove 65 while moving the link member 62 upward. To crush.

When the downstream of the conveyance direction of the link member 62 rises by the operation of the 2nd link member 64, the whole link member 62 rotates centering on the rotation shaft 47. As shown in FIG. That is, the rotation shaft 47 rotates in the direction in which the upstream side of the link member 62 moves downward.

Since the rotation shaft 47 is fixed to the upper plate 48, the upper plate 48 rotates about the rotation shaft 47 so that the upstream side of the conveying direction descends.

Thereby, the upper blade 42 fixed to the upper die plate 48 rotates gradually from the downstream in the conveying direction toward the upstream in the conveying direction, so that the conveying direction upstream is lowered about the downstream in the conveying direction, It meshes with the lower blade 44.

The state of FIG. 11 shows that the reciprocating unit 72 reached the initial position.

At this time, in this embodiment, the 2nd link member 64 is in the position extended in a perpendicular direction, and the upper end part of the 2nd link member 64 pushes up the downstream direction of the link member 62 to the uppermost direction, have.

The rotation shaft 47 has the largest amount of rotation in the direction in which the upstream side of the transport direction descends. For this reason, the upper plate 48 fixed to the rotation shaft 47 moves to the position where the upstream side is the lowest in the conveying direction, and the upper edge 42 and the lower edge 44 are in overall engaged state along the conveying direction. do. For this reason, the cutting of the metal strip 10 is completed in this position.

Thereafter, the reciprocating unit 72 moves in the conveying direction to move the metal strip 10 to the conveying position. The operation of the cutting device 30 in the case where the reciprocating unit 72 moves in the feed direction can be understood as operating in reverse to what is shown in FIGS. 9 to 11.

That is, when the reciprocating unit 72 moves in the conveying direction, the conveying pin 76 pulls the metal strip 10 in the conveying direction, and at the same time, the pin 69 conveys the lower end of the second link member 64. Move in the direction of

When the lower end of the second link member 64 moves in the conveying direction, the second link member 64 rotates about the fixed shaft 67, and the upper end moves in the direction opposite to the conveying direction. Then, the pin 66 of the upper end part of the 2nd link member 64 moves in the downward direction in the arc-shaped groove 65, and pushes down the conveyance direction downstream of the link member 62. FIG.

Then, the link member 64 rotates the rotation shaft 47 in the direction in which the downstream side of the transport direction descends, and conveys the upper plate 48 fixed to the rotation shaft 47 about the rotation shaft 27. It rotates so that an upstream side of a direction may rise. Then, the upper blade 42 cancels the engagement with the lower blade 44, and gradually rotates in the direction in which the conveying direction upstream rises around the conveying direction downstream.

Thus, in this embodiment, after cutting of 1 time is completed, while the conveying apparatus 70 conveys the metal strip 10 in a conveyance direction, in the cutting apparatus 30, the upper edge 42 and the lower edge 44 are carried out. ) To disengage the.

As in the present embodiment described above, the rotation angle of the upper blade 42 is determined by adopting a configuration such that the rotation angle of the upper blade 42 is determined based on the movement amount of the reciprocating unit 72 of the transfer device 70. As a result, the cutting length is shortened as a result.

As shown in FIG. 10, when the reciprocating unit 72 moved in the direction opposite to a conveyance direction by the distance L, the engagement length of the upper blade 42 and the lower blade 44 is L + (alpha), and is shown in FIG. As shown, when the reciprocating unit 72 has moved in the direction opposite to the conveying direction by a distance of 2L, the engagement length of the upper blade 42 and the lower blade 44 is 2L + α, and the movement of the reciprocating unit 72 is performed. The engagement length depends on the distance.

Thus, in this embodiment, since it can be set as the cutting length according to the movement amount of the metal strip | belt-shaped body 10 in the conveying apparatus 70, the situation where there is little conveyance amount as demonstrated in the prior art (refer FIG. 16). Even if it is, even a long cut piece can be prevented.

In addition, although the above description demonstrated the cutting device of the metal strip | belt-shaped object 10 in which the some hole with a some collar was provided, this invention is applicable also to the cutting | disconnection of the flat metal strip | belt-shaped body and the resinous strip | belt-shaped body. .

Claims (5)

In the cutting device which cut | disconnects the plate-shaped object intermittently conveyed in a predetermined direction to a conveyance direction, and forms several strip | belt-shaped material,
An upper blade disposed on the upper surface side of the plate-shaped body,
A lower blade disposed on the lower surface side of the plate-like body so as to mesh with the upper blade,
When cutting a plate-shaped object, it is provided with the drive means which drives at least any one of the said upper blade and the said lower blade so that the said upper blade and the said lower blade may be engaged,
The said upper blade and the said lower blade are arrange | positioned so that it may always engage on the downstream side of the conveyance direction of a plate-shaped object, and it is arrange | positioned so that it may engage at the time of cutting on the upstream side of the conveyance direction of a plate-shaped object. The said drive means drives at least one of the said upper blade and the said lower blade so that the said upper blade and the said lower blade may gradually engage from the downstream side of the conveyance direction of a plate-shaped object toward an upstream side. Cutting device, characterized in that. The said drive means is connected with the conveying apparatus of a plate-shaped object, The drive means has a link mechanism which converts the movement in the conveyance direction of a conveying apparatus into the rotational movement in a perpendicular plane,
By this link mechanism, the upper blade or the lower blade rotates around a predetermined pivot center located on the downstream side in the conveying direction of the plate-like body in accordance with the conveying operation of the conveying device, and the upper blade and the lower blade are rotated. A cutting device, characterized in that it operates so as to gradually engage from the downstream side in the conveying direction of the plate-like body toward the upstream side. The said link mechanism can cut | disconnect a plate-shaped object to the length based on the conveyance amount of a conveying apparatus by the said upper edge or the said lower edge | operation operating at the rotation angle based on the conveyance amount of a conveying apparatus. Cutting device. The upper mold of claim 2, wherein the upper edge is fixed,
A rotation shaft which is provided at a predetermined position on the downstream side in the conveying direction of the upper plate-shaped member, and the upper mold is rotatably provided in the vertical plane;
Pressing means for pressing the upper mold upward;
By pressing the upstream side of the upper plate-shaped body in the conveying direction against the pressing force of the pressing means, the upper die is rotated about the rotational axis so that the upper edge and the lower edge are in the conveying direction of the plate-shaped body. And pressing means which is operated to engage gradually from the downstream side toward the upstream side.

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