JPH0761631B2 - Laminate cutting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminate cutting device for automatically cutting a laminate in which cloths and the like are laminated.

[0002]

2. Description of the Related Art Conventionally, as an automatic cutting device for a laminate as described above, for example, as shown in Japanese Patent Publication No. 53-13836, a support surface of a support member having air permeability for a laminate such as a cloth to be cut. By holding the above, by suctioning from the lower surface of the support member, the laminate is compressed and held on the support surface,
There has been one that cuts a laminate into a desired shape by inserting a knife-shaped cutter, which is a cutting tool, into the laminate from above.

Further, the inventor of the present invention has disclosed in Japanese Patent Laid-Open No. 1-3
A cutting device for a laminate shown in Japanese Patent Publication No. 06200 is proposed. This cutting device supports a laminate holding belt that vertically reciprocates on an underframe by a belt supporting mechanism in which a large number of belt supporting plates are arranged side by side in the front-rear direction, and reciprocates vertically in the underframe. And a cutter head that reciprocally moves above the holding belt in the lateral direction. A cutter receiving cylinder that reciprocates laterally in the movable recess in synchronization with the cutter head, and a knife-shaped cutter having a tip portion penetrating into the cutter receiving cylinder is mounted on the cutter head so as to be able to move up and down. An air intake duct having an air intake opening on opposite surfaces is mounted on both sides of the underframe.

In this cutting device, a breathable laminate such as cloth is supported on the holding belt by covering the faces other than the side faces with a non-breathable sheet, and the suction duct sucks air from the side faces of the laminate. Then, the laminate is compressed and held on the holding belt. In this state, the cutter is lowered and the tip of the cutter is inserted into the cutter receiving cylinder, the cutter head is reciprocally moved in the horizontal direction, the traveling body is reciprocally moved in the longitudinal direction, and the cutter is laminated in a desired shape. I'm cutting things.

[0005]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the laminate cutting device disclosed in Japanese Patent No. 13836, a knife-shaped cutter penetrates a laminate that is compressed and held on a support surface by intake air, and the tip of the cutter is located near the support surface of the support member. Because it is a cantilever type cutter that also penetrates,
At the time of cutting, the tip of the cutter is distorted due to the resistance of the laminate and the supporting member, which makes it difficult to obtain a highly accurate cut product. In addition, there are some that use a band saw type cutter as a cutting tool, but at the time of cutting it is necessary to cut the laminate and the supporting member at the same time by the cutter and replace the supporting member at a high frequency, resulting in a good operating rate. There was a problem that it did not exist.

Further, in the cutting device for a laminate disclosed in Japanese Patent Laid-Open No. 1-306200, when the sheet material constituting the laminate has a low air permeability, the intake ports of the intake duct are provided on both side surfaces of these sheet materials. Even if the sheet is aspirated by contacting with each other, the close contact force of the sheet material of each layer is weak at a position away from the intake port, the cutting state of the cutter breaks the laminated state, and a highly accurate cut product cannot be obtained. Then, in the case where the intake port of the intake duct is brought into contact with both side surfaces of the laminate, it is necessary to move the intake duct laterally each time the width of the laminate changes.
There is a problem in that it takes time and the operating rate decreases.

The present invention solves the above-mentioned problems,
It is an object of the present invention to provide a laminate cutting device that can easily and efficiently obtain a highly accurate cut product even with a laminate of sheet materials having low air permeability.

[0008]

SUMMARY OF THE INVENTION According to the present invention, a belt holding mechanism supports a laminated body holding belt that vertically reciprocates on an underframe, and the underframe supports a traveling body that vertically reciprocates. In the traveling body, a concave portion forming member that forms a movable concave portion having an upper surface opened to the holding belt, a cutter head that reciprocates laterally above the holding belt, and a horizontal portion inside the movable concave portion in synchronization with the cutter head. A cutter receiving cylinder that reciprocates in a direction is provided, and a knife-shaped cutter whose tip portion penetrates into the cutter receiving cylinder is attached to the cutter head so as to be able to move up and down, and the laminate on the holding belt is compressed on the underframe. In a cutting device for a laminate, in which an air intake duct is provided, a holding belt having a lower layer non-breathable member and an upper layer breathable member fixed by forming an air passage therein is provided. Said lower surface a suction port formed along the longitudinal direction contact with or proximity to the air intake duct on the upper surface in which is disposed.

[0009]

In the laminate cutting device according to the present invention, a laminate of sheet material such as cloth is placed at a predetermined position on the laminate holding belt, and the portion of the laminate and the upper surface of the holding belt exposed to the atmosphere. Is covered with a flexible non-breathable sheet, and in this state, an air passage formed between the non-breathable member in the lower layer of the holding belt and the breathable member in the upper layer from the air inlet of the air intake duct, By sucking air through the breathable member, the laminate and the non-breathable sheet are held on the holding belt, and the entire laminate is uniformly compressed.

While maintaining this state, the knife-shaped cutter is penetrated through the non-breathable sheet and the laminate to allow the tip end of the cutter to penetrate and be supported by the cutter receiving cylinder, and the cutter head provided on the traveling body in the lateral direction. By moving and running the running body in the vertical direction, the movable recess formed in the holding belt and the cutter receiving cylinder disposed in the moving recess are moved in the vertical and horizontal directions in accordance with the running body and the cutter head to form a laminate. To cut.

Further, in the present invention, since the holding belt has the air passage formed between the non-air-permeable member of the lower layer and the air-permeable member of the upper layer, from the entire lower surface of the laminate placed on the holding belt. Air can be sucked almost uniformly, so even when the air permeability of the laminate is sufficient, even if the air permeability is low, the entire laminate can be uniformly compressed and held securely on the holding belt. The cutting resistance of the cutter does not disturb the laminated state such as the sheet material that makes up the laminate is displaced, and the cutter has both upper and lower holding types for cutting. Even when cutting a complicated shape, the deformation due to the distortion of the cutter is small, and a highly accurate cut product can be easily obtained.

Further, since the holding belt is not cut at the tip of the cutter, it is not necessary to replace it, and it is not necessary to move the intake duct in the lateral direction even if the width of the laminate is changed. And the cut product can be obtained efficiently.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1, FIG. 2, FIG. 3 and FIG.
Is a rectangular frame that is longer in the vertical (X) direction than in the horizontal (Y) direction. Front and rear belt guides 2 extending in the lateral direction are horizontally fixed to both front and rear ends of the underframe 1, and flexible laminate holding belts 3 are supported by the front and rear belt guides 2. ing.

The holding belt 3 hangs downward from the semi-circular outer ends of the front and rear belt guides 2 and is rotatably wound around the lower parts of the front and rear ends of the underframe 1. The end portion is connected to the taking roller 4. In front of the underframe 1,
A belt driving electric motor 5 is provided at the rear end portion, and the holding belt 3 is wound around one or the other of the winding rollers 4 by an endless chain or an endless belt by these electric motors 5.

Further, as shown in FIGS. 7 and 8, the holding belt 3 has a two-layer structure in which a flexible lower layer non-breathable member 3a and an upper layer breathable member 3b are fixed to each other. The air passage 3c is formed between the non-breathable member 3a and the breathable member 3b. The non-breathable member 3a is made of chemical fiber, synthetic resin, rubber, etc., and has a large number of protrusions 3 on its upper surface.
d is formed, and the breathable member 3b is made of a non-woven fabric, a foam, a mesh, a woven fabric or the like having an appropriate thickness, and is fixed on the protrusion 3d and both side edges of the non-breathable member 3a by appropriate means. ing.

Below the holding belt 3, a belt supporting mechanism 7 for supporting a portion other than a movable concave portion 6 formed on the belt 3 which will be described later is arranged. In this belt support mechanism 7, the front and rear ends of a flexible connecting belt 8 are fixed to the front and rear belt guides 2 of the underframe 1, and the holding belt 3 is provided.
Is provided under the holding belt 3 and has substantially the same width as the holding belt 3 and is provided with a required amount of slack.

Below the connecting belt 8, a large number of rectangular belt supporting plates 9 which are long in the horizontal direction are arranged at substantially equal intervals in the vertical direction, and the belt supporting plates 9 are fixed to the connecting belt 8 by appropriate means. Bearing metal fitting 10 protruding below the belt support plate 9
A pair of rollers 11 is rotatably supported by each of the rollers.
A pair of guide rails 12 also functioning as vertical beams are horizontally installed along the vertical direction at an intermediate portion in the vertical direction of the underframe 1, and a carrier plate 13 is provided between the belt support plate 9 and the guide rails 12.
And a cam plate 14 are arranged.

The carrying plate 13 is made of a rectangular metal plate whose longitudinal direction is longer than the height direction, and a plurality of carrying plates are arranged on both sides of the cam plate 14 in the longitudinal direction.
A substantially inverted trapezoidal cam groove 15 is formed. Further, the supporting plate 13 is provided with a vertically long hole 16 and a connecting pin 17,
The connecting pins 17 are also provided at both ends of the cam plate 14. The connecting pin 17 of the cam plate 14 is slidably engaged with the vertically long hole 16 of the carrier plate 13 adjacent to the cam plate 14, and the connecting pin 17 of the carrier plate 13 is also vertically long hole 16 of the adjacent carrier plate 13.
The carrying plates 13 at the front and rear ends are fixed to the front and rear ends of the underframe 1 by stoppers 18, respectively.

A pair of front and rear rollers 19 are pivotally attached to the lower ends of the carrying plate 13 and the cam plate 14, respectively, and these rollers 19 are movably supported on the guide rail 12. The roller 11 of the belt supporting plate 9 is supported on the upper surfaces of the carrier plate 13 and the cam plate 14, and the belt supporting plate 9 and the connecting belt 8 are mounted on the upper surface of the carrier plate 13 and the cam plate 14 except the cam groove 15. Through the holding belt 3
The portion other than the movable concave portion 6 is supported.

As shown in FIGS. 1, 2 and 3, the underframe 1 is provided with a traveling body 20 which reciprocates vertically. In the traveling body 20, both side members 21 and 22 are engaged with and supported by a pair of guide rails 12 fixed to the underframe 1, and lower ends of these members are fixed to the cam plate 14. Further, a connecting beam 23 is horizontally installed on the upper ends of the side members 21 and 22, and a cutter head 25 reciprocating in the lateral direction is supported by a head rail 24 provided side by side on the connecting beam 23.

A knife-shaped cutter 26 is held on the cutter head 25 so as to be vertically movable and rotatable about a vertical axis. The cutter 26 extends vertically below the cutter head 25, and below the cutter 26 is the cutter 26. A cutter receiving cylinder 27 having a support hole 27a through which the tip portion of the cutter holder 27 can be inserted and removed is provided. The cutter 26 is a crank mechanism or a drive mechanism provided in the cutter head 25 (both not shown).
It is designed to be lifted and lowered by a cutter lifting mechanism having the above.

The cutter receiving cylinder 27 disposed below the cutter 26 is rotatable around a vertical axis and is a receiving cylinder holding member 2.
A large number of closing plates 29 are laterally connected to both sides of the receiving cylinder holding member 28. At the lower ends of the side members 21, 22 of the traveling body 20, a lower receiving member 30 having a substantially U-shaped cross section is installed between the side members 21, 22 of the traveling body 20. On the upper part of the lower receiving member 30, a receiving tube holding member 28 and a closing plate 29 are engaged and supported so as to be reciprocally movable in the lateral direction.

As shown in FIG. 2, a recess forming member 31 is disposed between the lower portions of the side members 21 and 22 of the traveling body 20. The recess forming member 31 is arranged below the holding belt 3 so that two recess forming rollers 32 and 33 are provided above and below the receiving belt 30.
Both ends of 33 are rotatably supported by the side members 21 and 22. The holding belt 3 is supported from below by the two recess forming rollers 32 located above, and the holding belt 3 is supported from above by the two recess forming rollers 33 arranged below, so that the holding belt 3 has an upper surface. A movable concave portion 6 which is opened and whose longitudinal dimension becomes longer toward the bottom surface is formed over the entire width in the lateral direction. The movable concave portion 6 is arranged above the cam groove 15 of the cam plate 14 so as to face it.

As shown in FIGS. 1 and 4, the intake ducts 34 that are in contact with or close to the upper surfaces of both sides of the holding belt 3 are arranged along the vertical direction, and the lower surface of the intake duct 34 has an intake port 34a. Has been formed. Intake duct 34
The front and rear ends of the underframe 1 by the holding metal fittings 36, respectively.
Is connected to an intake source (not shown) such as a tank which is held on the outer side surface of the tank and communicates with the vacuum pump by an intake pipe 35.

As shown in FIG. 5, a seal member 37 is vertically movably fitted to a part of the intake port 34a of the intake duct 34 in the vertical direction.
0 is connected by a guide pin 38. And
The lower receiving member 30 and the seal member 37 move as the traveling body 20 moves, and the upper surface opening of the movable recess 6 formed on the holding belt 3 is covered with the seal member 37, so that the intake port at the position of the movable recess 6 is formed. The inflow of air to 34a is prevented.

Further, as shown in FIG. 4, the intake duct 34
In order to maintain the airtightness of the contact portion between the holding belt 3 and the holding belt 3, a non-air-permeable sealing tape 39 having a width and a length that are brought into close contact with both side surfaces of the intake duct 34 and come into contact with a required portion of the upper surface of the holding belt 3. , 40 are detachably attached.

As shown in FIG. 6, the drive system 4 of this embodiment
1 is attached to the one side member 22 (see FIG. 1) of the traveling body 20 in the Y direction.
A shaft (transverse direction) moving electric motor 42 is fixed, a connecting shaft 43 is rotatably supported by bearings (not shown) provided on both side members of the traveling body, and a toothed pulley of the Y axis moving electric motor 42. Four
4 and a toothed pulley 45 of the connecting shaft 43 are meshed with a timing belt 46, and upper and lower toothed pulleys 47 and 48 are fixed to two positions of the connecting shaft 43. An upper timing belt 49 is meshed with the upper toothed pulley 47, and the upper timing belt 49 is an intermediate pulley 50, 5.
0 is bent in the horizontal direction from the up-down direction and guided horizontally in the Y-axis direction, and is supported and stretched by the upholstery pulley 51 rotatably mounted on the other side member side of the traveling body, and both ends are It is connected to the cutter head 25. A lower timing belt 52 is meshed with the toothed pulley 48 for the lower portion, and the lower timing belt 52 is supported and stretched by a lower pulley 53 rotatably mounted on the other side member side, and both end portions thereof are received. It is connected to the tube holding member 28. With the above-described configuration, the cutter head 25, the receiving cylinder holding member 28, and the cutter receiving cylinder 27 are moved laterally (Y axis) by the forward / reverse drive of the Y-axis moving electric motor 42.
It is configured to reciprocate in synchronization with the direction.

Further, the cutter electric motor 5 is provided at a proper position on the traveling body.
4 is fixed, the toothed pulley 55 of the cutter motor 54
The timing belt 60 is meshed with the toothed pulleys 58 and 59, which are rotatably supported by the side members of the traveling body and extend in the longitudinal direction, and are also fixed to one ends of the lower spline shafts 56 and 57, respectively. The timing belt 60 is pressed and stretched by the intermediate pulley 61. The upper and lower spline shafts 56 and 57 are rotatably supported by bearings (not shown) provided on side members of the traveling body.

The cutter head 2 is attached to the upper spline shaft 56.
5, a spline nut 62 rotatably supported in a restricted position in the vertical direction is supported so as to be movable in the axial (longitudinal) direction, and a drive-side bevel gear 63 is fixed to the spline nut 62 for driving. A driven bevel gear 64 on the vertical axis, which is axially supported by the cutter head 25, is meshed with the bevel gear 63. A timing belt 68 meshes with a toothed pulley 65 provided integrally with the driven bevel gear 64 and a toothed pulley 67 provided on the cutter guide 66. The cutter guide 66
Is for rotatably supported by the cutter head 25 to rotate the cutter 26 around a vertical axis.

A spline nut (not shown), which is rotatably supported by the receiving cylinder holding member 28 by restraining its longitudinal movement, is engaged with the lower spline shaft 57 so as to be movable in the axial direction. A drive-side bevel gear 69 is fixed to the nut, and a driven-side bevel gear 70 on the vertical axis that meshes with the drive-side bevel gear 69 is coaxial with a cutter receiving cylinder 27 that is rotatably supported by a receiving cylinder holding member 28. It is fixed to.

By the forward / reverse drive of the cutter electric motor 54, the cutter 26 and the cutter receiving cylinder 27 are reciprocally rotated about the vertical axis through the upper and lower spline shafts 56, 57, and the like, and reciprocally rotated. Is configured to perform steering.

Further, an X-axis (vertical direction) traveling electric motor 71 is fixed at a proper position on the traveling body, and a connecting shaft 72 is rotatably mounted on bearings (not shown) provided on both side members of the traveling body. The timing belt 75 is meshed with the toothed pulley 73 of the X-axis traveling electric motor 71 and the toothed pulley 74 fixed to one end of the connecting shaft 72, and the toothed pulley with the same number of teeth is provided at both ends of the connecting shaft 72. 76 are fixed to each other. The toothed pulley 76 and the pinion 77 disposed below them
A timing belt 79 is meshed with a toothed pulley 78 integrally formed with. The pinions 77 are respectively engaged with rack bars 80 (see also FIG. 1) fixed to the lower portions of the guide rails of the underframe in parallel with them and along the longitudinal direction. With the configuration described above, the X-axis traveling electric motor 71
The forward / reverse rotation drive of the vehicle allows the traveling body to reciprocate on the traveling body rail in the vertical (X-axis) direction.

Each of the three electric motors 42, 54, 71 uses a servomotor capable of numerical control, and based on the data pre-programmed in the control panel 81 shown in FIG. Cutter, X-axis traveling electric motor 42, 5
4, 71 are controlled respectively, the cutter head 25 is moved, the cutter 26 is steered, the traveling body 20 is caused to travel,
It is designed to cut.

Next, the cutting operation of the laminate by the cutting device of this embodiment will be described. First, the laminate 82 in which sheet materials such as cloth are laminated is placed on the upper surface of the holding belt 3,
By driving the belt driving electric motor 5 of the one winding roller 4 around which the holding belt 3 is wound, the holding belt 3 is unwound from the other winding roller 4 and wound around the one winding roller 4, thereby To move the laminate 82 to a predetermined position, and stop the belt driving electric motor 5.

Next, substantially the entire portion of the laminate 82 on the holding belt 3 and the upper surface of the holding belt 3 exposed to the atmosphere is covered with a flexible non-breathable sheet 83. In this state, the intake ducts 3 vertically arranged on both sides of the upper surface of the holding belt 3
By driving an intake source (not shown) of No. 4, the intake port 34a formed on the lower surface of the intake duct 34 comes into contact with or close to the upper surface of the holding belt 3 so that the holding belt 3 and the lower non-air-permeable member 3a are formed. Since the air passage 3c is formed between the upper layer breathable member 3b, air is sucked from the intake port 34a through the air passage 3c and the breathable member 3b to hold the laminate 82 and the non-breathable sheet 83. Holding on the belt 3, the entire laminate 82 is uniformly compressed on the upper surface of the holding belt 3.

While maintaining the above-mentioned state, the X-axis traveling electric motor 71 is driven, the traveling body 20 is longitudinally traveled, and the Y-axis moving electric motor 42 is driven to be supported by the connecting beam 23 of the traveling body 20. By moving the cutter head 25 in the lateral direction, the cutter head 25 is positioned at the cutting start position on the laminate 82. At the same time, as the traveling body 20 travels vertically, the recessed portion forming member 31 moves vertically, so that the movable recessed portion 6 also moves vertically.

When the lower receiving member 30 moves in the same direction, the cutter receiving cylinder 27 also moves in the same direction. further,
In synchronization with the lateral movement of the cutter head 25, the cutter receiving cylinder 27 is moved laterally together with the closing plate 29 and the receiving cylinder holding member 28 provided on the lower receiving member 30. By these,
The knife-shaped cutter 26 attached to the cutter head 25 and the cutter receiving cylinder 27 are at the cutting start position where they are vertically opposed to each other.

At the cutting start position, the traveling body 20, the cutter head 25, the lower receiving member 30, the receiving cylinder holding member 28, etc. are stopped, and the cutter 26 is driven by a cutter elevating mechanism (not shown) provided on the cutter head 25. Lower it. The cutter 26 penetrates the upper part of the laminate 82 of the non-air-permeable sheet 83 and the laminate 82, and the tip end thereof is inserted into the bearing hole 27 a of the cutter receiving cylinder 27 to be supported by this.

In this state, a command from the control panel 81 drives the X-axis traveling and Y-axis moving electric motors 71 and 42 to synchronously move the cutter 26 and the cutter receiving cylinder 27 in the same direction, and at the same time, to the cutter. The electric motor 54 is driven to rotate the cutter 26 and the cutter receiving cylinder 27 in the same direction in the same direction about the axis to steer the blade edge of the cutter 26 in the advancing direction of the cutter 26 and the data programmed in the control panel 81. The laminate 82 is automatically cut together with the non-breathable sheet 83 in a pattern based on.

After cutting the laminate 82, each motor 4
2, 54, 71 are stopped, the cutter 26 is raised and returned, and the above-described operation is repeated to normally cut one laminate 82 into a plurality of patterns. After the cutting of all the patterns is finished, the intake source is stopped, the belt driving electric motor 5 is driven to move the holding belt 3 in the longitudinal direction, and the laminate 82 is carried out of the holding belt 3.

In the cutting device of this embodiment, the four recess forming rollers 3 of the recess forming member 31 provided in the lower portion of the traveling body 20 are used.
The holding belt 3 is supported by 2, 33.
A movable concave portion 6 that moves in the vertical direction is provided in a part of the
In the lower part of 0, a lower receiving member 30 in which a cutter receiving cylinder 27 that moves in the lateral direction is supported via a receiving cylinder holding member is provided.
Since the lower receiving member 30 is arranged in the movable concave portion 6, it has the belt supporting mechanism 7 that supports the lower surface of the holding belt 3 including the movable concave portion 6 that moves as the traveling body 20 travels.

The belt supporting mechanism 7 connects a large number of belt supporting plates 9 in the vertical direction, and these supporting plates 9 allow the front and rear belt guides 2 other than the movable concave portion 6 on the lower surface of the holding belt 3.
And the lower end of the belt support plate 9 is connected to the lower end of the traveling body 20 below the movable recess 6 to support the space between them.
5, the supporting plates 13 on both sides of the cam plate 14 respectively support the cam plate 14 and the supporting plate 13 so that they overlap and expand and contract, and the horizontal guide rails 12 of the underframe 1 are connected to each other. It is supported so that it can run on it.

Therefore, the traveling of the traveling member 20 causes the cam plate 14 and the recess forming member 31 to move integrally, the movable recess 6 and the cam groove 15 move integrally in the vertical direction, and the belt support plate 9 cams. It is supported by the groove 15 and guided by the movable concave portion 6 in a timely manner to descend, and does not interfere with the movable concave portion 6, and when it comes out of the movable concave portion 6, it surely rises to hold the holding belt 3 horizontally. Intake air leakage between the upper surface of the belt 3 and the lower surface of the laminate 82 can be prevented.

Further, in this embodiment, the holding belt 3
Is a configuration in which an air passage 3c is formed between the lower layer non-permeable member 3a and the upper layer permeable member 3b.
By connecting the intake port 34a of No. 4 to the air passage 3c,
The entire laminate 82 can be uniformly compressed and held on the upper surface of the holding belt 3, and the tip end of the cutter 26 can be inserted into and supported by the cutter receiving cylinder 27 below the laminate 82. As a result, the cutter 26 can be prevented from being distorted during cutting, so that a highly accurate cut product can be obtained.

In the present invention, the holding belt 3 has a structure shown in FIG.
As shown in FIG. 5, a large number of protrusions 3e extending laterally at predetermined intervals are formed on the lower non-air-permeable member 3a, and these intervals may be used as the air passages 3c, and the like, which may be appropriately changed. In the present invention, as shown in FIG. 10, the belt support plate 9 has a direction extending in the lateral direction with a length substantially equal to the width of the holding belt, and those adjacent to the front and the rear are pivoted or hinged. A plurality of belt supporting plates 9 may be connected to each other so as to be bendable in the vertical direction with the portion serving as a fulcrum, and the belt supporting plate 9 may have an entire length with a necessary looseness amount. Further, the belt support plate 9 is, as shown in FIG.
Notched step portions 84 are formed on both front and rear edges of the upper surface, and a flexible belt 85 having a thickness equal to the depth of these step portions 84 is provided on the notched step portion 84 of the adjacent belt support plate 9. The belt supporting plates 9 adjacent to each other may be bendably connected by being fixed to each other by an appropriate means.

In the present invention, instead of the fixed belt guide 2 shown in FIG. 2, a guide roller rotatably supported on the underframe by a horizontal shaft may be used. The present invention, as shown in FIG. 12, has an endless holding belt 3
The driving roller 87, which is supported by the front and rear support rollers 86 on the upper portion of the holding belt 3 and is driven by the belt driving electric motor 5, is brought into pressure contact with the inner peripheral surface of the holding belt 3 by the tension roller 88. The holding belt 3 may be moved in the vertical direction by rotating 87.

Further, according to the present invention, as shown in FIG. 13, a connecting shaft 89 is rotatably attached to one of the front and rear ends of the underframe 1.
And the toothed pulleys 90 are fixed to the connecting shaft 89 at appropriate positions, and the toothed pulleys 91 having the same number of teeth are fixed to both ends of the connecting shaft 89. On the other hand, a driven pulley 92 is axially supported so as to face the toothed pulley 91, and the timing belt 93 is attached to these pulleys 91, 92.
The running body 20 is fixed to the belt 93 by means of.
Further, a toothed pulley 95 is fixed to the output shaft of an X-axis traveling electric motor 94 provided at an appropriate position of the underframe 1, and the timing belt 96 is attached to the pulley 95 and the toothed pulley 90 of the connecting shaft 89.
Alternatively, the traveling body 20 may be vertically reciprocated through the timing belt 96 by driving the X-axis traveling electric motor 94 in the forward and reverse directions.

In the present invention, an auxiliary support is formed by axially supporting a plurality of front and rear rollers or fixing a support plate to both side members of the traveling body or the cam plate, and the auxiliary support is provided in front of the movable concave portion of the cam groove. It may be arranged in the rear portion and support the lower surface of the holding belt by an auxiliary support. The belt support mechanism of the present invention is not limited to the configuration of the above-mentioned embodiment, and has a cam plate and a belt support plate, and a lift mechanism is provided on the support plate, as in the case of Japanese Patent Laid-Open No. 1-306200. You may equip them one by one.

That is, in the elevating mechanism, rack bars having a circular cross section hang down at two lateral positions on the lower surface of the belt support plate, and pinions engaged with the rack bars are fixed to both ends of the connecting shaft. Are horizontally rotatably supported by bearings on a support plate holding member fixed to the underframe.
A brake is attached to the connecting shaft, and the brake is operated and opened only when required by using electricity, air, hydraulic pressure, etc. by electric control, and normally, the supporting plate is connected so as to maintain a raised state. The shaft is configured to be locked to the holding member. A steadying member that slidably supports the rack bar is fixed to the holding member.

When the movable concave portion is moved, the supporting plate supporting the lower surface of the holding belt in front of the traveling body moves the traveling body to bring the cam plate fixed to the traveling body into proximity by an appropriate means. Upon detection, the brake is released and the descent is possible. Then, as the traveling body travels, the roller pivotally attached to the support plate engages with the cam groove of the cam plate, and as the traveling body travels, the support plate descends while maintaining the horizontal state, and moves below the movable concave portion. . The support plate located below the movable concave portion is guided by the cam groove as the traveling body travels and ascends from the rear one, and when it is separated from the cam plate, the support plate lower surface of the holding belt is supported. In this state, the brake stops the brake releasing operation, so that the brake is locked at the raised position and the locked state is maintained. Therefore, as the movable recess moves, the supporting plate located below the movable recess changes only. Only the supporting plate corresponding to the cam plate in the vertical direction is positioned below the movable recess. Always support.

In the present invention, in the above-mentioned embodiment,
Although the driving force is transmitted from the electric motor by using the timing belt and the toothed pulley, the driving force may be transmitted by using a ball screw shaft, a chain or the like instead of these. In the present invention, if necessary for work, a sheet of air-permeable material or a sheet of paper having a large number of air holes is placed on the lower surface of the laminate as an underlay paper, and is supported together with the laminate on the holding belt through the underlay paper. However, cutting may be performed.

[0052]

As described above, the laminate cutting apparatus according to the present invention places a laminate of sheet material such as cloth at a predetermined position on the laminate holding belt, and the laminate and the upper surface of the holding belt. Almost all the part exposed to the atmosphere is covered with a flexible non-breathable sheet, and in this state, from the air inlet of the air intake duct to the non-air permeable member of the lower layer of the holding belt and the air permeable member of the upper layer. By inhaling air through the air passage formed between the air-permeable member and the breathable member, the laminate and the non-breathable sheet are held on the holding belt, and the entire laminate is uniformly compressed.

While maintaining this state, the knife-shaped cutter is penetrated through the non-breathable sheet and the laminate to allow the tip of the cutter to penetrate into and be supported by the cutter receiving tube, and the cutter head provided in the traveling body in the lateral direction. By moving and running the running body in the vertical direction, the movable recess formed in the holding belt and the cutter receiving cylinder disposed in the moving recess are moved in the vertical and horizontal directions in accordance with the running body and the cutter head to form a laminate. To cut.

Further, in the present invention, since the holding belt has the air passage formed between the non-air-permeable member of the lower layer and the air-permeable member of the upper layer, the whole surface of the lower surface of the laminate placed on the holding belt is Air can be sucked almost uniformly, so even when the air permeability of the laminate is sufficient, even if the air permeability is low, the entire laminate can be uniformly compressed and held securely on the holding belt. The cutting resistance of the cutter does not disturb the laminated state such as the sheet material that makes up the laminate is displaced, and the cutter has both upper and lower holding types for cutting. Even when cutting a complicated shape, the deformation due to the distortion of the cutter is small, and a highly accurate cut product can be easily obtained.

Further, since the holding belt is not cut at the tip of the cutter, it is not necessary to replace the holding belt, and it is not necessary to move the intake duct in the lateral direction even if the width of the laminate is changed. Is improved, and the cut product can be obtained efficiently.

[Brief description of drawings]

FIG. 1 is a perspective view showing a laminate cutting device according to an embodiment of the present invention.

FIG. 2 is a vertical sectional view taken along the line AA of FIG.

FIG. 3 is a plan view in which a part of FIG. 1 is cut away.

4 is a cross-sectional view of the main part taken along the line BB of FIG.

5 is a partially enlarged sectional view showing a seal member of the cutting device of FIG.

6 is a perspective view showing a drive system of the cutting device of FIG.

7 is a partial perspective view showing a holding belt of the cutting device of FIG.

8 is a partial perspective view showing a non-air-permeable member of the holding belt of FIG.

FIG. 9 is a partial perspective view showing a modified example of the non-air-permeable member of the holding belt according to the present invention.

FIG. 10 is a partial side view showing a modified example of the belt support plate of the present invention.

FIG. 11 is a partial side view showing another modification of the support plate of the present invention.

FIG. 12 is a side view showing a modified example of the holding belt of the present invention.

FIG. 13 is a side view showing a modified example of the traveling body drive system of the present invention.

[Explanation of symbols]

 1 frame 3 holding belt 3a non-breathable member 3b breathable member 3c air passage 4 winding roller 5 belt drive motor 6 movable recess 7 belt support mechanism 9 belt support plate 20 traveling body 23 connecting beam 25 cutter head 26 cutter 27 Cutter Receiving cylinder 28 Receiving cylinder holding member 29 Closing plate 30 Lower receiving member 31 Recess forming member 32 Recess forming roller 33 Recess forming roller 34 Intake duct 34a Inlet 41 Drive system 42 Y-axis (lateral) moving motor 54 Cutter electric motor 71 X-axis (longitudinal) running electric motor 82 Laminated product 83 Non-breathable sheet

Claims (1)

[Claims] 1. A laminate holding belt that reciprocates in a vertical direction on an underframe is supported by a belt support mechanism, and a traveling body that reciprocates in the longitudinal direction is supported by the underframe, and the holding body holds the traveling body. A recess forming member that forms a movable recess having an upper surface opened to the belt, a cutter head that reciprocates laterally above the holding belt, and a cutter receiving cylinder that reciprocates laterally in the movable recess in synchronization with the cutter head. And
A knife-shaped cutter, the tip of which penetrates into the cutter receiving cylinder, is attached to the cutter head in a vertically movable manner, and an intake duct for compressing the laminate on the holding belt is arranged on the underframe to cut the laminate. The apparatus has the holding belt in which a lower layer non-breathable member and an upper layer breathable member are fixed by forming an air passage therein, and an upper surface of the holding belt is vertically aligned with a lower surface of the intake duct. An apparatus for cutting a laminate, characterized in that the air intake ports formed as described above are arranged in contact with or close to each other.