JP2654491B2 - Sealing device for suction type mounting table in cutting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cutting a flexible sheet-like material to be cut, such as a knitted cloth or a cloth, in accordance with a desired pattern. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for suction-fixing a material and for cutting the cut material by moving a cutter blade up and down to seal an already cut portion.

[0002]

2. Description of the Related Art In order to simultaneously cut a large number of flexible cut materials such as a knitted cloth or a cloth or a synthetic resin sheet in a state of superimposing a plurality of cut materials, the cut material is suctioned by using an air-permeable bristle body. Cutting devices to be fixed have been proposed in Japanese Patent Publication No. 60-48319 and Japanese Patent Publication No. 62-50280.

[0003] In the cutting device for cutting material described above, an air-permeable bristle body is supported by an endless traveling body and arranged side by side so as to move on a suction box. The bristle body forms a cutting support surface on the suction box. Forming, disposing a cutter blade which is movable in an arbitrary direction above the cutting support surface, placing the material to be cut on the cutting support surface in a laminated manner, and placing this on the surface of the bristle body from the suction box. The suction force is applied to fix the material on the bristle body, and the cutter blade is moved up and down in this state.
The material to be cut is cut under a predetermined condition while being cut in a predetermined shape.

However, in this type of cutting device, the outside air is sucked through the portion cut by the vertical movement of the cutter blade , and as the cut material is cut, the suction fixing force of the cutting support surface decreases. There was a problem of getting it. Therefore, in order to cope with the above problem, as shown in, for example, Japanese Patent Publication No. 63-28759, a non-breathable cover is placed on the upper surface of the cut material stacked on the cutting support surface. In order to hold the cut material firmly on the cutting support surface and hold the cut upper surface of the cut material with a sheet, a roller wrapped and urged by a rewind spring is used as a cutter blade. Arranged to accompany,
With the movement of the cutter, a sheet wound around a roller is pulled out against the tension of a rewinding spring, and the upper surface of a cut material to be cut is closed. ing.

[0005]

However, in the above-mentioned publication in which the sheet is closed on the upper surface of the cut material, the tension of the spring for rewinding the roller increases as the sheet is pulled out. The sheet must be pulled out against the tension of the spring, which causes the cut material to be cut off and moves, or the sheet floats up from the cut material, and the outside air is sucked from here There was a problem of doing it.

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above problems, and an object of the present invention is to provide a suction type mounting table sealing device which can be securely closed without floating on the upper surface of a cut material to be cut. It is assumed that.

[0007]

In order to achieve the above object, a sealing device for a suction type mounting table in a cutting machine according to the present invention firstly arranges air-permeable bristle bodies side by side on a suction box. A suction-type mounting table having a cutting support surface formed on the upper surface of the air-permeable bristle body is formed, and a cutter blade that is movable in an arbitrary direction is arranged above the cutting support surface of the suction-type mounting table, The material to be cut is placed on the cutting support surface, and is moved in the longitudinal direction on the suction type mounting table while being cut into a predetermined shape by a cutter blade in a state where the material to be cut is sucked and fixed on the bristle body with a suction force. In the cutting machine as described above, a sheet feeding device for closing the cut portion of the cut material is disposed on the upper surface of the cut portion, and the feeding device has one end of the sheet on the cut portion side of the cut material. Fix to the end of the suction table and The other end of the X-axis direction of the cutter blade
Linked to forced drive roller which moves in conjunction with movement, forcing
A rotation transmission mechanism between the shaft end of the drive roller and the suction type mounting table
The cutter blade is placed in a suction type by the rotation transmission mechanism.
The forcible drive roller is linked to the
If the sheet is fed out or wound up the shaft end
Sheet from the forced drive roller
It is characterized in that unwinding and winding rotation control is performed .

In addition, a cable is stretched between both ends in the longitudinal direction of the suction type mounting table, and a rotation transmission mechanism is provided between the cable and the shaft end of the forcibly driving roller. In association with the movement of the cutter blade in the longitudinal direction of the suction type mounting table by the mechanism, the shaft end of the forcibly driven roller is rotated in the direction in which the sheet is fed out or wound, and the sheet from the forcibly driven roller is rotated. The feeding and winding rotation control is performed. Further, a pulley is fixed to a roller shaft end portion pivotally supported by the roller support bracket, and with a relative movement between the pulley and the suction type mounting table, a belt stretched in the longitudinal direction of the suction type mounting table. The rotation transmission mechanism is configured by connecting the rolling guide roller with the rolling guide roller by a gear transmission mechanism and a belt transmission mechanism so that the forcibly driving roller is driven to rotate in the direction of feeding and winding the sheet. This is one of the features.

[0009]

The cutting material is placed on the cutting support surface of the suction-type mounting table having an air-permeable bristle body in a stacked state, and a suction negative pressure is applied to the cutting support surface via the suction box. The cut material is firmly sucked and held on the cut support surface. Next, the material to be cut is cut into a desired shape while moving the cutter blade up and down by the cutter device, and the cutter blade is moved from one side of the suction mounting table to the other side.

The forcibly driven roller is forcibly rotated in the winding direction or the winding direction in conjunction with the relative movement in the X-axis direction with the suction type mounting table accompanying the movement of the cutter blade. Driven. When the sheet from the forced driving roller Ru fed under no tension, which is adsorbed to the cut material to move vertically
That protect from outside air suction from cut portions with a cutter. In this way, when the cutter blade that has been cut and moved up and down moves from one side of the suction type mounting table to the other side while rising above the material to be cut , the cutter blade With the movement of the roller, the roller is driven to rotate in the winding direction in conjunction with the relative movement with the suction-type mounting table, and the sheet is wound on the roller.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view schematically showing a cutting machine provided with a sealing device for a suction type mounting table, and FIG. 2 is a longitudinal sectional side view thereof. This cutting machine 1
Includes three suction boxes 3, 3, 3, which are horizontally disposed on the base frame 2, the suction box 3, 3, 3 above are arranged to endless traveling, the suction box 3, 3
A bristle body 5 forming a cutting support surface 4 on the upper surface of the suction box 3;
A suction-type mounting table 9 formed by a suction duct 7 and a suction device 8 for generating a suction force for fixing the cut material 6 such as a knitted cloth or a knitted fabric on the cutting support surface 4 via 3.3; And a cutter device 10 arranged above the cutting support surface 4 so as to be movable in an arbitrary direction.

The suction boxes 3, 3 are formed in a rectangular shape corresponding to the length and width of the effective cutting space. On both sides in the width direction of the suction boxes 3, 3 and 3, endless chains are arranged along the length direction of the base frame 2, and a large number of receiving plates whose both ends are supported by both chains on the outer periphery of the both sides chain. Being fixed
An endless orbit conveyor having a well-known structure as disclosed in JP-A-59-59 and other publications is formed, and the bristle bodies 5 are arranged on the upper surface of each receiving plate to form a cutting support surface 4.

The cutter device 10 includes an X-axis direction moving unit 12 and a Y-axis direction driving unit 13, and the X-axis direction moving unit 12 is rotatable between both ends of the suction-type mounting table 9 in the longitudinal direction. The belt 16 for moving is wound around the gears 14 and 15 provided on the
While connecting the lower end of the block 17 to a part of
Gear 1 at one end on which belt 16 for moving blade is wound
5 and an output shaft 19 of an electric motor (driving motor) 18 are connected by a driving bladed belt 20, and by controlling the rotation direction and speed of the driving motor 18, the moving By using the bladed belt 16 and the driving bladed belt 20, the cutter blade 21 can move in the longitudinal direction of the suction mounting table 9, that is, in the X-axis direction. The cutter blade 21 is a motor (not shown).
And a conversion mechanism that converts the rotation of the motor into vertical movement
A periphery configured to reciprocate and cut the material to be cut 6
It has a knowledge structure.

The Y-axis direction drive unit 13 is provided with the suction type mounting table 9.
X-axis direction moving parts 12, 12 respectively provided in the width direction of
A guide bridge 22 is mounted over the space, and the cutter blade 21 is guided by the guide bridge 22 and moved in the Y-axis direction by a Y-axis direction driving motor (not shown). Belts (lines) 23 are stretched substantially parallel to the belt 16 with a blade for movement, and the moving section 12 in the X direction is arranged above each belt 23. .

As shown in FIG. 3 and FIG. 4, the X-axis direction moving parts 12 and 12 have a pair of upper and lower parts, respectively, inside and before and after a block 17 whose lower end is connected to a moving bladed belt 16. The guide rollers 24 and 25 are provided, and belts (cables) 23 and 23 stretched substantially parallel to and above the moving bladed belt 16 are wound around the guide rollers 24 and 25, respectively. Cutter blade 2 of X axis direction moving part 12
As shown in FIGS. 1 to 4, roller support brackets 26 are formed on one side surface so as to project.

A roller 27 is pivotally supported at the tip of the roller support brackets 26, 26.
Reference numeral 7 is for forcibly feeding and winding the flexible sheet 28. Roller support bracket 26.2
A pulley 30 is fixed to a shaft 29 at one end pivotally supported by the shaft 6, and the pulley 30 and the guide roller 24 rolled by the belt 23 are connected by a gear transmission mechanism 31 and a belt transmission mechanism 32. Then, the roller 27 is driven to rotate in a direction in which the sheet 28 is fed and wound.
An arm 33 is provided upright from the base frame 2 on the side where the cut material 6 is cut by the cutter blade 21 which moves up and down.
A sheet feeding device 34 is formed fixed to 33.

The operation of the sealing device for the suction type mounting table in the cutting machine constructed as described above will be described below. First,
A predetermined number of cloths (cutting material) 6 are stacked on a cutting support surface 4 formed by bristle bodies 5 on suction boxes 3, 3 and 3 from a rolling machine (not shown) to a mounting table of the cutting machine. To supply.

Here, the cloth 6 on the cutting support surface 4 is cut by a cutting machine.
To supply the cut effective space of the mounting table of the state of stopping the suction action of the suction box 3, 3, 3, the cloth 帛
Place the layered support (not shown) from the extended position to the left
Fabric 6 in a square cut effective space on the cutting support plane 4 is being transported. When the suction force is applied to the suction boxes 3, 3, the cloth 6 supplied onto the effective space for cutting is firmly suction-fixed on the cutting support surface 4.

[0019] Thereafter, by operating the cutter device 10 months
When the cloth 6 is cut into a predetermined shape while moving the cutter blade 21 up and down , the cutter device 10
, Through the driving bladed belt 20 and the moving bladed belt 16 in the X-axis direction (from left to right in the figure)
Move slowly. When the X-axis direction moving unit 12 is moved and the guide roller 24 is driven to rotate by the belt 23, the rotation is transmitted to the roller 27 via the gear transmission mechanism 31 and the belt transmission mechanism 32, and the roller 27 transfers the sheet 28. The sheet 20 is fed from the roller 27 by being driven to rotate in a direction in which the cutter device 10 is fed in accordance with the amount of movement of the cutter device 10.

The fed sheet 28 is used as the cutter blade 21.
This prevents the cut portion from covering the cut portion and preventing the outside air from being sucked from the cut portion, thereby reducing the suction fixing force of the bristle body 5 of the fabric 6 on the cut support surface 4. When the cutting by the cutter blade 21 is completed and the cutter blade 21 moves from the right to the left of the suction-type mounting table 9 by the reverse rotation drive of the drive motor 18, the guide rollers 24 are opposite to the above. Is rotated by a belt 23, and the rotation is transmitted to a roller 27 via a gear transmission mechanism 31 and a belt transmission mechanism 32, and the roller 27 rotates in a direction in which the sheet 28 is wound up. That is, it is wound exactly on the 27.

In the above embodiment, the X of the cutter device 10
A belt 16 with a blade for movement is wound around an axially moving part 12 over gears 14 and 15 rotatably provided between both ends in the longitudinal direction of the suction type mounting table 9. A lower end portion of a block 17 is connected to a part of the belt 16, and a gear 15 on one end side on which a belt 16 for moving is wound.
And an output shaft 19 of an electric motor (driving motor) 18 are connected by a driving bladed belt 20, but the present invention is not limited to this. Needless to say, the cutter motor 10 may be provided in the X-axis direction moving section 12 and the guide rollers 24 and 25 may be directly rotated to drive the cutter device 10 in the X-axis direction.

In the above embodiment, the suction type mounting table 9 is movable. However, it is needless to say that the present invention can be applied to a fixed type of the suction type mounting table 9. is there.

[0023]

As described above, according to the sealing device of the suction type mounting table in the cutting machine according to the present invention, the cut material sucked and held on the cutting support surface via the suction box is cut by the cutter blade. When the material to be cut is cut into a desired shape, the sheet is fed from a roller whose roller is driven to rotate in the winding direction in conjunction with the relative movement with the suction type mounting table accompanying the movement of the cutter blade. Since it is designed to prevent the outside air from being sucked from the part cut by the cutter,
There is an advantage that the sheet to be closed can be reliably closed without floating on the upper surface of the cut material as in the related art.

In addition, since the rotation of the roller for feeding and winding is positively driven, no tension is applied to the sheet for closing the cut material in the roller direction. There is also an advantage that the cutting material can be prevented from shifting, and a fine cutting can be performed.

Also, the roller is driven in the feeding and winding directions in conjunction with the drive motor for driving the cutter blade in the X-axis direction or the relative movement between the suction type mounting table and the cutter blade accompanying the movement of the cutter blade. Since it is driven to rotate, and there is no need for a special drive source for feeding or winding the sheet, there is an advantage that the structure can be simplified and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing a cutting machine provided with a suction-type mounting table sealing device.

FIG. 2 is a side view schematically showing a cutting machine provided with a suction type mounting table sealing device.

FIG. 3 is a plan view of a main part.

FIG. 4 is a side view of a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Cutting machine 3 ... Suction box 4 ... Cutting support surface 5 ... Bristle body 6 ... Cut material 9 ... Suction type mounting table 21 ... Cutter blade 23 ... Cable (belt) 27: guide roller 28: sheet 34: sheet feeding device

Claims (3)

(57) [Claims] An air-permeable bristle body is arranged side by side on a suction box, and a suction-type mounting table having a cutting support surface formed on an upper surface of the air-permeable bristle body is formed. A cutter blade that is movable in an arbitrary direction is arranged above the cutting support surface of the above, and the cut material is placed on the cutting support surface, and the cutter is suction-fixed to the bristle body by suction force. In a cutting machine configured to move on a suction-type mounting table in a longitudinal direction while cutting into a predetermined shape with a blade, a sheet feeding device for closing the portion is arranged on an upper surface of a cut portion of a cut material. The feeding device fixes one end of the sheet to the end of the suction type mounting table on the cut side of the cut material, and connects the other end of the sheet to the X-axis direction of the cutter blade.
Linked to forced drive roller which moves in conjunction with movement, forcing
A rotation transmission mechanism between the shaft end of the drive roller and the suction type mounting table
The cutter blade is placed in a suction type by the rotation transmission mechanism.
The forcible drive roller is linked to the
If the sheet is fed out or wound up the shaft end
Sheet from the forced drive roller
A sealing device for a suction-type mounting table in a cutting machine, which is configured to control the unwinding / rewinding rotation . 2. A cable is stretched between both ends in the longitudinal direction of the suction type mounting table, and a rotation transmission mechanism is provided between the cable and the shaft end of the forcibly driven roller. In association with the movement of the cutter blade in the longitudinal direction of the suction type mounting table by the mechanism, the shaft end of the forcibly driven roller is rotated in the direction in which the sheet is fed out or wound, and the sheet from the forcibly driven roller is rotated. 2. The sealing device for a suction-type mounting table in a cutting machine according to claim 1, wherein the feeding / winding rotation control is performed. 3. A pulley is fixed to an end portion of a roller shaft pivotally supported by a roller support bracket, and is extended in a longitudinal direction of the suction-type mounting table with the relative movement between the pulley and the suction-type mounting table. And the guide roller, which is rolled by the belt, is connected by a gear transmission mechanism and a belt transmission mechanism, and the forcibly driven roller is configured to be rotationally driven in a direction in which the sheet is fed and wound. The sealing device for a suction-type mounting table in the cutting machine according to claim 2, wherein: