JPH09143870A - Feed of raw fabric cloth to cutting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain even cut pieces of cloth longer than the cutting area on a cutting table while enabling laminates of cloth to be fed on to the table of a cutting machine. SOLUTION: This method comprises supporting a raw fabric roll R on which a cloth has been wound in front of the cutting table 12 of a cutting machine 10 provided with a cutter 11, locating longitudinally a plurality of cloth lead-out units 15 of surface-drive type that lead out the cloth from the roll R, installing a carry-in conveyor 16 laid over the range from below the cloth lead-out units to the rear edge of the cutting table, leading out the cloth from each of the cloth lead-out units to the carry-in conveyor in such a way that the cloth led out of a cloth lead-out unit more distant from the cutting machine comes to lower side and the cloth led out of a cloth lead-out unit nearer to the cutting machine comes to the upper side to form a cloth laminate S, advancing the cloth laminate S at the same velocity as the lead-out velocity of the cloth lead- out units from the carry-in conveyor while leading out clothes from the respective cloth lead-out units, and feeding the cloth laminate on to the cutting table 12 of the cutting machine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a raw material for a cutting machine which supplies a cloth from a raw material such as cloth, non-woven fabric, synthetic leather, etc. to be cut by the cutter on a cutting table of a cutting machine having a cutter. Regarding the supply method.

[0002]

2. Description of the Related Art A spreading machine supporting a material roll wound with a cloth is arranged in front of a cutting table of a cutting machine equipped with a cutter, and the cloth is stretched from the material roll to a predetermined length by the spreading machine. It is conventionally known that the sheet is fed out and laminated on a table of a spreading machine, and when the dough has a predetermined thickness, it is supplied to a cutting table of a cutting machine and cut.

[0003]

In the above-mentioned conventional method, the dough feeding device of the spreading machine stops the feeding device when the dough fed onto the table reaches a certain length, and the dough on the table is fed with a cutter. Cut to length, then operate the dough feeding device again to feed the next dough on the previous dough on the table, stop the feeding device when the next dough becomes the same constant length, and Cut the dough to length and stack it on top of the previous one. This process is repeated many times to stack a large number of fabrics of a certain length on the table of the spreading machine, so it takes a very long time to stack. Further, when the stack of the dough has a predetermined thickness in this way, it is necessary to move the stack onto the table of the cutting machine, which also takes time. Further, the length of the cut piece is limited to a certain length of the cloth, and a cut piece longer than that cannot be obtained.

[0004]

DISCLOSURE OF THE INVENTION The present invention is intended to solve the above-mentioned conventional problems, and supports an original fabric roll wound with cloth before a cutting table of a cutting machine equipped with a cutter. In addition, while arranging a plurality of surface-driving type fabric feeding devices for feeding the fabric from the raw fabric rolls by surface-driving the raw fabric rolls, a plurality of the dough feeding devices are provided under the cutting machine. A carry-in conveyor is installed up to the rear end of the cutting table. The dough fed by the dough feeding device far from the cutting machine is below the dough, and the dough fed by the dough feeding device close to the cutting machine is above the dough. To form a dough laminate, and while the dough is fed from each dough feeder, the dough conveyer advances the dough laminate at the same speed as the dough feeding speed of the dough feeding device, and the cutting machine cuts it. And supplying on Buru.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated embodiment, 10 is a known cutting machine equipped with a cutter 11, and in front of a cutting table 12 thereof, an original roll R having a cloth wound thereon is supported, A plurality of surface drive type cloth feeding devices 15-1 for driving the surface of the roll to feed the cloth s from the original roll,
15-2, ... 15n-1, 15-n are arranged in the front-rear direction. A carry-in conveyor 16 is provided below the plurality of dough feeding devices to the rear end of the cutting table 12 so as to feed the laminate S of the dough fed by each dough feeding device onto the cutting table 12. The cutter is cutter 1
1 may be manually operated, or may be a CAM type cutting machine in which the movement of the cutter is automatically controlled by a command from a CAD. It should be noted that CAD in this document is a computer aided design, and CAM is a computer aided m.
Anufacturing (an automatic manufacturing system that uses an electronic computer).

The cutting table 12 of the cutting machine is an endless breathable conveyor 1 such as a brush belt or a belt with ventilation holes.
3 and a suction box 14 on the back of the upper surface of which the fabric laminate S rides. The cutter 11 cuts the fabric laminate S by operating a vacuum pump or the like connected to the suction box. Negative pressure is applied to the suction box, and the fabric stack on the breathable conveyor is adsorbed and fixed on the breathable conveyor to prevent the stack from moving, and the breathable conveyor is activated to advance the fabric stack. When making it, the inside of the suction box is returned to atmospheric pressure, and adsorption is released.

The surface drive type cloth feeding device is shown schematically in FIG. 1, but the drive belt and the drive roller come into contact with the outer circumference of the original roll R, and the contact caused by the circulating movement of the drive belt and the rotation of the drive roller. The original roll is rotated by friction,
It is a well-known one that unwinds and unwinds the dough from its outer periphery.
(A, B) shows an example of a material feeding device using a drive belt. This consists of two pairs of endless narrow belts 1a, 1a, ...
b, 1b, etc. are put into the space between the belts of the other party to each other (the belt of 1a is placed between the belts 1b and 1b by 1b).
The belts 1a and 1a are interlaced with each other.) The original roll R is placed on the V-shaped valley formed by two sets of belts 1a, 1a ... And 1b, 1b. , And belts 1a, 1a ... And 1b, 1b .. The cloth s wound on the original roll is unwound by driving a pulley in a direction of an arrow to circulate the cloth s on one of the belts 1b, 1b. And hangs it downwards and feeds it onto the carry-in conveyor 16. Also, FIG.
(C) is an example of a material feeding device using a driving roller.
The original roll R is placed on the drive rollers 3 and 3 in a circumscribed manner, and a plurality of idle rollers 4 are arranged in an arcuate arrangement outside the drive rollers to drive the drive rollers 3 and 3. 3 Prevent the original roll R from falling over. Then, the fabric s wound on the original fabric roll is driven to rotate the drive rollers 3 in the direction of the arrow for unwinding, and the fabric s hangs around the upper idler roller 4 ′ to be carried on the carry-in conveyor 13. Pay out.

In order to supply the laminated body S of the cloth onto the cutting table 12 of the cutting machine, initially, the cloth feeding device 16 causes the cloth s unwound from the original fabric to hang down just above the carry-in conveyor 16. Then, at the same time as the carry-in conveyor 16 is operated, the rearmost dough feeding device 15-n is driven, and the dough fed by the pay-out device is placed on the carry-in conveyor and conveyed forward. The dough feeding speed of each dough feeding device is equal to the forward speed of the carry-in conveyor and the breathable conveyor of the cutting table of the cutting machine. Except for the last dough feeding device, each dough feeding device 15-1, 15-2, ... 1 before it
5-n-1 is a photoelectric sensor 1 for detecting the front end of the dough that advances forward on the carry-in conveyor immediately after the lower end of the dough s hanging directly above the carry-in conveyor.
7 is provided. The feeding device 15 in which the sensor of the dough feeding device 15-n-1 moves forward on the carry-in conveyor
-When the front edge of the cloth of n is detected, the cloth feeding device 15-
Driven by n-1, the dough is fed out and overlaid on the dough fed out by the device 15-n, and is advanced together. Thus, each time the sensor of the dough feeding device at the front position detects the front end of the laminating of the dough that advances forward on the carry-in conveyor, the dough feeding device delivers the dough and superimposes it on the dough laminating,
Move forward together, and finally, the first dough feeding device 15-1
When the dough is fed out and stacked on the dough stack, the dough stack becomes a stack S and advances.

It should be noted that the deflecting rolls 18 are provided just before the lower end of the dough s hanging from the dough feeding devices directly above the carry-in conveyor.
It is preferable that the dough be freely rotated so that the dough is fed from each dough feeding device onto the carry-in conveyor, and the dough advancing on the carry-in conveyor is hung so that the direction of the dough is regulated in a right-angled manner.

Thus, the dough fed out from all the dough feeding devices to the carry-in conveyor, the dough fed out by the last device is the lowermost layer, the dough fed out by the leading device is the uppermost layer, and the front end of each dough is almost uniform. The dough stack S moves forward on the carry-in conveyor, and when the front end reaches the front end of the carry-in conveyor, the operator of the cutting machine stops all the dough feeding devices and the carry-in conveyor to temporarily stop the advance of the dough stack. . Then, the operator of the cutting machine operates the entire dough feeding device, the carry-in conveyor, and the air-permeable conveyor of the cutting table, so that the front end of the laminated body S of the dough transfers to the cutting table from the carry-in conveyor and advances on the cutting table. To do.

As shown in FIG. 2, the cutting area on the cutting table 12 where the cutter can cut is between the front end A (0 point) near the front end of the table and the rear end B near the rear end. And to make the first cut, the fabric laminate
When the front edge of S comes to the front edge A (0 points) of the cutting area,
The operator of the cutting machine stops all the dough feeding devices, the carry-in conveyor and the breathable conveyor to stop the dough stack S , and then, as described above, makes the suction box 14 a negative pressure to cut the dough stack S. It is sucked and fixed on the table, and the cloth laminate is prevented from moving on the table when the cutter is operated to perform cutting.

Then, as shown in FIG. 2, in the cutting area between the front end A and the rear end B on the cutting table, a cutter is carried out from the front end A of the fabric stack S to a predetermined position C behind. 11 cuts with a predetermined cutting pattern as shown by the solid line. The cutting may be performed by manually operating the cutter, or may be performed by automatically controlling the movement of the cutter according to a command from CAD. After that, the operator returns the suction box of the cutting table to the atmospheric pressure to release the suction of the laminated body S of the cloth.

Next, since the operator performs the second cutting, the carry-out conveyor (pickup conveyor) 19 connected to the front end of the cutting table, the carry-in conveyor 16, the breathable conveyor 13 and the dough feeding devices 15-1, 15-
2, ... 15-n-1, 15-n are driven until the rear end C of the cutting pattern of the laminated body S of the cloth is positioned on the front end A of the cutting area on the cutting table as shown in FIG. After advancing the laminated body S of the dough while feeding out, the breathable conveyor, the carry-out, the carry-in conveyor, and the dough feeding device are stopped, and the suction box is again set to a negative pressure to adsorb the laminated body S of the dough on the cutting table. , Fix it, and cut with the same cutting pattern with a cutter. The forward speed of the carry-out conveyor is also equal to the dough feeding speed of the dough feeding device. Then, the cut laminated body of the cut pieces is taken out from the cloth laminated body on the carry-out conveyor.

In this way, in the second and subsequent cutting, when the previous cutting is completed, the suction box of the cutting table is returned to atmospheric pressure, and the carry-in, carry-out conveyor, air-permeable conveyor, and each dough feeding device are driven to cut the dough. Advancing the dough laminate until the rear end C of the cutting pattern of the laminate reaches the front end A of the cutting area on the cutting table, and then adsorbing and fixing the dough laminate on the cutting table to perform cutting. Should be repeated.

Further, even if some of the cutting patterns input to CAD include cutting pieces longer than the cutting areas A to B of the cutting table, the fabric laminate S is cut. Since it extends from the rear end of the table 12 to the leading-edge dough feeding device 15-1, the long cut pieces can be cut without any trouble. In that case, for example, the front part of the cutting pattern is cut from the front end A of the cutting area of the cutting table to a predetermined point after that, and the rear end of the cut cutting line becomes the front end A of the cutting area. As described above, the laminated body of the cloth may be advanced and stopped, and the rear portion of the cutting pattern may be cut subsequently to the rear end of the cutting line of the front portion. In short, since the fabric laminate S continues from the top of the cutting table to the leading fabric feeding device 15-1, the cutting pattern is divided into a plurality of parts in the front-rear direction, and the fabric laminate is moved forward to be divided. By cutting the subsequent division pattern following the cutting line of the partial pattern, it is possible to cut regardless of how long the cut piece is.

In order to obtain the same cut piece or another cut piece with another cloth, when the final cutting is performed on the cutting table, the cloth stack S is formed in the width direction at the rear end C of the cutting pattern. Then, the cutting pattern is advanced on the carry-out conveyor to take out the stack of cut pieces, and the waste stack left after the stack is taken out is removed from the carry-out conveyor. Then, all the dough feeding devices, the carry-in conveyor, and the air-permeable conveyor are driven in the opposite directions to cause the dough feeding devices to wind the dough fed by the dough feeding devices while moving the dough laminate backward. When each fabric feeding device finishes winding the fabric, the drive is stopped, the original fabric roll remaining on each device is removed, a new original fabric roll is set, and the fabric stack S is set as described in paragraph 0008. Is supplied to the cutting table and cutting is performed.

In FIG. 1A, a plurality of dough feeding devices are arranged in a row in the rear area in front of the cutting table. However, as shown in FIG. 1B, the dough feeding devices are arranged in a zigzag pattern in the vertical direction. If they are arranged in a shape, the installation space for the same number of dough feeding devices becomes short. Moreover, if the same installation space is used, the number of arranged dough feeding devices can be increased.

Further, the cutting of the dough laminated body by the cutter of the cutting table and the cutting in the width direction may be performed by using a laser beam or high-pressure water in addition to using a blade.

[0019]

As is apparent from the above, according to the present invention, a plurality of dough feeding devices are arranged in the front-rear direction in front of the cutting table, and the cutting table of the cutting machine is placed under the plurality of dough feeding devices. Provide a carry-in conveyor to the rear end,
The dough that the dough feeding device far from the cutting machine lowers, the closer the dough feeding device from the cutting device to the higher dough, and the dough is fed from each dough feeding device onto the carry-in conveyor to form a dough laminate, and While feeding out the dough from the dough feeding device, the dough conveyor advances the dough laminate at the same speed as the dough feeding speed of the dough feeding device, and supplies it to the cutting table of the cutting machine to perform cutting, and thus each time the cutting ends. While feeding the dough from the dough feeding device to the carry-in conveyor, the dough laminate is supplied to the cutting table of the cutting machine by the carry-in conveyor. Therefore, compared with the conventional method in which the dough is fed out for a certain length, cut, laminated on the table of the spreading machine, and moved to the cutting table of the cutting machine when the stack reaches a predetermined thickness, The laminated body can be fed to a cutting table and cut.

Further, since the dough stack continues from the cutting table to the leading dough feeding device, the cutting pattern is divided into a plurality of parts in the front-rear direction, and the dough stack is moved forward to be divided into front parts. By cutting the following dividing pattern after the cutting line of the pattern, it is possible to cut regardless of how long the cut piece is.

[Brief description of the drawings]

FIG. 1A is a schematic side view of a first embodiment of the present invention,
(B) is a schematic side view of the second embodiment.

FIG. 2 is a plan view showing a state in which a fabric laminate is first cut on a cutting region of a cutting table.

FIG. 3 is a plan view showing a state in which the second and subsequent cutting operations are performed on the cutting area of the cutting table.

4A is a side view of a surface drive type fabric feeding device using a drive belt, FIG. 4B is a plan view of FIG. 4A, and FIG. 4C is a side view of a surface drive type fabric feeding device using a drive roller. .

[Explanation of symbols]

 10 Cutting machine 11 Cutter of cutting machine 12 Cutting table 13 Breathable conveyor of cutting table 14 Suction box of cutting table 15 Dough feeding device 16 Carry-in conveyor 17 Sensor 18 Turning roll 19 Carry-out (pick-up) conveyor

Claims (1)

[Claims] 1. A surface-driving apparatus for supporting a raw material roll on which a cloth is wound in front of a cutting table of a cutting machine equipped with a cutter, and for driving the raw material roll to surface-drive the material to roll out the cloth. A plurality of dough feeding devices of the mold are arranged in the front-rear direction, and a carry-in conveyor is provided from below the plurality of dough feeding devices to the rear end of the cutting table of the cutting machine, and the dough feeding device that is far from the cutting machine feeds the dough. Downward, the dough fed out by the dough feeding device closer to the cutting machine is turned up to form the dough on the carry-in conveyor from each dough-feeding device to form a dough laminate, and by the carry-in conveyor while paying out the dough from each dough-feeding device. A method for feeding an original fabric to a cutting machine, which comprises advancing the dough laminate at a speed equal to the dough feeding speed of a dough feeding device and feeding it onto a cutting table of the cutting machine.