JPH07214496A - Cloth covering sheet supply device to cutting machine and its method - Google Patents

Abstract

PURPOSE:To automatically supply an air impermeable cloth covering sheet at the time of bringing cloth in an automatic cutting machine. CONSTITUTION:A supply device 26 is provided on an air table 24 on the upstream side of a cutting table 25 of a cutting machine 21. Air is blown off from an air nozzle 34 to the side of the cutting table 25 on the air table 24. The cutting table 25 can carry accumulated sheets 22 of cloth placed on an air conveyor 35. A cutting support surface 37 on the surface of the conveyor 35 is formed on the head end of a bristle brush 36 The bristle brush 36 is air permeable, allowed to with communicate with a absorbing chamber 39 in the inside of the cutting table 25 and vacuum absorbed. When the accumulated sheets 22 of cloth are carried in, they are detected by a cloth sensor 33, a delivery roller 29 is rotatively driven, and a cloth covering sheet 23 i.s delivered from a covering sheet web roll 31. When cloth is stopped carrying in, it is possible to cut the cloth covering sheet 23 by a cutting device 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting machine for cutting parts according to cutting data while vacuum-sucking and holding a material to be cut on a cutting table, and an air-impermeable material for improving vacuum holding characteristics. Device and method for feeding a pneumatic dough coated sheet to a cutting machine for feeding a functional coated sheet.

[0002]

2. Description of the Related Art Conventionally, in a cutting machine, especially an automatic cutting machine, a cloth to be cut is held on a cutting table while being vacuum-sucked, and a cutting blade which can be freely moved on the cutting table follows cutting data. The outer shape of parts is cut. Since the fabric to be cut is generally not air-permeable, it is not sufficient to simply hold the fabric on the cutting table. For this reason, the cloth is further covered with an air impermeable sheet to ensure that the vacuum is maintained. As the cloth covering sheet, for example, a synthetic resin film such as polyethylene or vinyl chloride is used.

FIG. 14 shows a simplified structure of the prior art disclosed in Japanese Patent Publication No. 62-25785. The cutting machine 1 has a cutting table including a processing table 2, an upstream transfer table 3 and a downstream transfer table 4. The cutting carriage 5 includes rails 2 provided on both sides of the processing table 2 and the transfer tables 3 and 4 in the width direction.
It is possible to travel on a, 3a, and 4a. The cutting carriage 5 is provided with a cutting head 6 capable of moving in the width direction on the cutting carriage 5, and a blade 6 for cutting the material.
a is provided. Similar to the cutting carriage 5, the label carriage 7 can move on rails 2a, 3a, 4a provided on both sides of the processing table 2 and the transfer tables 3, 4. The label carriage 7 has a function of applying a label for identifying a part to the cloth while traveling. The label carriage 7 is further provided with a holding device 8 such as a cloth sheet. A cutting device 9 is provided above the boundary between the processing table 2 and the transfer table 3 on the upstream side.

At the end of the transfer table 3 on the upstream side, a material sheet original fabric 10 and a covering sheet original fabric 11 on which a material sheet and a material covering sheet are respectively wound are pivotally supported. Clamping device 8 provided on the label carriage 7
Holds the front end of the dough sheet unwound from the dough sheet original fabric 10 and moves the transfer table 3 to the working table 2 to spread the dough sheet on the working table 2 by a predetermined length. When the spreading of one dough sheet is completed, it is cut by the cutting device 9, and the spreading of the dough sheet is repeated to form the laminated sheet 12 on the processing table 2. After the predetermined number of laminated sheets 12 are formed, the sandwiching device 8 of the label carriage 7 sandwiches the leading end of the cloth covering sheet unwound from the covering sheet material 11 and is stacked on the processing table 2. The sheet 12 is coated.

[0005]

In the prior art as shown in FIG. 14, the same label carriage 7 and the holding device 8 are used to spread the dough sheets on the processing table 2 and stack them to form the laminated sheet 12. I am trying to cover it with a cloth cover sheet. When performing such a spreading operation, the cutting carriage 5 cannot be operated to perform cutting. In this prior art, the transfer tables 3 and 4 are movable independently of the processing table 2 in the direction perpendicular to the paper surface of FIG. 14, and a plurality of processing tables 2 are used to stack them on one processing table 2. It is possible to cut the laminated sheet 12 already formed on the other processing table 22 while forming the sheet 12 by stretching.

However, for example, Japanese Patent Laid-Open No. 5-993
The cost of the cutting table increases in the automatic cutting machine which uses the cutting table as a conveyor drive system as disclosed in Japanese Patent No. 82. In such a cutting machine, the cloth is not spread on the cutting table, and the purpose is to carry in the cloth spread by the exclusive spreading machine and efficiently cut the cloth. Therefore, the automatic cutting machine having a conveyor-driven cutting table is not provided with a mechanism for spreading the sheet material, and the work of covering the air impermeable sheet must be performed manually. For example, on the upstream side of the cutting table, a cloth-covered sheet wound in a roll shape is pivotally supported by columns that stand upright from both sides in the width direction. The cover sheet is unwound to cover the dough. In order to sufficiently cover the cloth, the worker needs to work from both sides of the cloth, and two workers are required.

It is an object of the present invention to provide an apparatus and a method for feeding a cloth covering sheet to a cutting machine which can automatically supply a covering sheet even in an automatic cutting machine having a conveyor driven cutting table. .

[0008]

According to the present invention, the surface of a cloth is covered by an automatic cutter that cuts parts from the cloth according to the cutting data while sucking and holding the cloth on a conveyor-driven cutting support surface. A device for supplying an air-impermeable cover sheet, which is provided on the side of loading the dough on the cutting support surface, is erected on both sides in the width direction of the automatic cutting machine, and rolls the cover sheet around the roll. Supplying a dough-coated sheet to a cutting machine, comprising: a supporting means for supporting; and a feeding means for feeding a coated sheet from a roll supported by the supporting means to a cutting-supporting surface driven by a conveyor, in accordance with carrying-in of the material. It is a device.

Further, the present invention is characterized in that cutting means for cutting the covering sheet to be fed out is provided below the feeding means.

Further, the present invention is characterized by comprising guide means for guiding and guiding the covering sheet fed from the feeding means in the conveyor driving direction of the cutting support surface.

Further, the guiding means of the present invention is characterized in that air is jetted from below the feeding means toward the cutting support surface to guide and guide the covering sheet.

Further, the guiding means of the present invention is characterized in that it guides and guides in the direction of the cutting support surface while contacting the unwound covering sheet.

Further, a spreading machine having a means for carrying out the spread material is installed upstream of the loading side of the automatic cutting machine of the present invention, and a detecting means for detecting the material loaded from the spreading machine. When the cloth is detected by the detection means, it is characterized by including control means for driving the conveyor and feeding the coated sheet from the feeding means in association with the carry-out speed of the spreading machine.

Further, according to the present invention, an automatic cutting machine that cuts a part from the cloth according to the cutting data while sucking and holding the cloth on the cutting support surface of the conveyor drive system is provided with an air impermeable material covering the surface of the cloth. A method for supplying a covering sheet, which is above a carry-in path of the dough to the cutting support surface,
The covering sheet supports the wound roll, and the covering sheet is unwound from the roll while being guided and guided in the direction of the cutting support surface, and the dough is covered with the covering sheet at a payout speed associated with the dosing speed of the dough. It is a method for supplying a material covering sheet to a cutting machine.

Further, the guide guidance of the present invention is characterized in that it is carried out by driving the conveyor while sucking the cutting support surface.

Further, the guide guide of the present invention is characterized in that air is jetted from the cloth feed-in route to the fed cover sheet.

Further, according to the present invention, a spreading machine capable of carrying out the unfolded cloth is installed on the upstream side of the cloth carry-in path, and the spreading condition and the cutting condition are set according to the cutting data. And the automatic cutting machine is linked according to the set spreading condition and cutting condition, the spread cloth is carried out from the spreading machine, sucked by the cutting support surface and carried in, while covering the entire surface of the cloth. It is characterized by supplying sheets.

[0018]

According to the present invention, the roll around which the air-impermeable covering sheet is wound is installed upright on both sides in the width direction of the automatic cutting machine on the side where the dough is carried into the cutting support surface of the conveyor drive system. Supported by the supported support means. The feeding means feeds the covering sheet from the roll in accordance with the feeding of the cloth onto the cutting support surface driven by the conveyor. When the cloth is loaded onto the cutting support surface, the cloth is covered with the covering sheet.

Further, according to the present invention, since the cutting means for cutting the covering sheet fed below the feeding means is provided, the end of the covering sheet which is fed and covered with the cloth as the cloth is carried into the cutting support surface. Can be cut.

Further, according to the present invention, the covering sheet fed from the feeding means is guided and guided in the conveyor driving direction by the guiding means, so that the covering sheet can be smoothly fed without causing wrinkles or the like on the material. Can be supplied.

Further, according to the present invention, the guiding and guiding of the covering sheet fed by the feeding means is performed by blowing air from below in the conveyor driving direction of the cutting support surface. Depending on the method of the cutting machine, when loading the material onto the cutting support surface,
Fabrics are transported using air jets. In such a cutting machine, the jet of air can also be used for guiding and guiding the covering sheet. The need for guiding the cover sheet is particularly great during the period until the front end of the fabric is loaded onto the conveyor, and the cover sheet can be sufficiently guided and guided by jetting air during such a period.

Further, according to the present invention, the delivered covering sheet is guided and guided in the direction of the cutting support surface while being in contact with the guiding means. Since the covering sheet is brought into contact with and separated from the covering sheet, the covering sheet can be surely guided and guided.

Further, according to the invention, a spreading machine having a means for carrying out the unfolded material is installed upstream of the loading side.
The dough carried in from the spreading machine is detected by the detection means, and the control means drives the conveyor and feeds the covering sheet from the feeding means in association with the delivery speed of the spreading machine. Thus, the covering sheet can be automatically supplied onto the cloth while the spreading machine and the automatic cutting machine are continuously operated.

Further, according to the present invention, the roll around which the covering sheet is wound is supported above the material carrying-in route to the cutting supporting surface, and the covering sheet is unwound from the roll and guided and guided in the direction of the cutting supporting surface. The dough is covered with a cover sheet at a payout speed that is related to the dough loading speed. For example, the feeding of the covering sheet can be easily automated because the covering sheet is covered with the guiding sheet while being fed out while being synchronized with the cloth feeding speed or slightly slowed down.

Further, according to the invention, the sheet material is guided and guided by driving the conveyor while sucking the cutting support surface. Since the covering sheet is impermeable to air, it has a large suction force on the cutting support surface, is pulled by the conveyor drive, and can be easily guided and guided.

Further, according to the present invention, air is jetted from the cloth carry-in route to guide and guide the covering sheet. For such a function of ejecting air, a function provided for carrying in the dough can be used.

Further, according to the present invention, a spreading machine capable of carrying out the unfolded cloth is installed on the upstream side of the cloth carry-in path, and the spreading machine and the automatic cutting machine are linked in accordance with the cutting data, The covering sheet can be automatically supplied so as to cover the entire surface of the cloth while carrying out the warped cloth and sucking it in at the cutting support surface and carrying it in.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the main construction of a cover sheet feeding device for a cutting machine according to an embodiment of the present invention. Cutting machine 21
Cuts the laminated sheet 22 in which the dough sheets are stacked with the dough covering sheet 23 which is impermeable to air.
The laminated sheet 22 is formed by the upstream spreading machine,
It is carried from the air table 24 onto the cutting support surface of the cutting table 25. The air table 24 is provided with a supply device 26 for supplying the fabric covering sheet 23 onto the laminated sheet 22. Inside the supply device 26, a pair of support rollers 27 and 28 are provided. Support rollers 27, 28
A feeding roller 29 for feeding the cloth covering sheet 23 is provided below the. A pressing roller 30 is provided to press the material covering sheet 23 against the feeding roller 29. On the support rollers 27 and 28, a roll-shaped covering sheet material 31 is placed. A cutting device 32 is provided below the feeding roller 29, and a dough sensor 33 for detecting the laminated sheet 22 carried in from the upstream side is provided below the cutting device 32.

A plurality of air nozzles 34 are arranged on the air table 24, and an arrow mark 3 faces the cutting table 25 side.
Blow out air as shown at 4a. Air nozzle 34
Are arranged in a zigzag pattern on the air table 24 at regular intervals. The cutting table 25 is moved by the conveyor 35.
The placed laminated sheet 22 and the cut parts can be conveyed. The conveyor 35 has a plurality of bristle brushes 36, and the tips of the bristle brushes 36 form a cutting support surface 37. The bristle brush 36 has air permeability and communicates with a suction chamber 39 that is vacuum-sucked by a suction motor 38.

The cutting device 32 has a rail 40 provided below the feeding roller 29. The rail 40 extends in the width direction of the cutting machine 21, that is, in the direction perpendicular to the paper surface of FIG. 1, together with the support rollers 27 and 28 and the feeding roller 29, and is supported by the columns 26a on both sides in the width direction. A cutter base 41 can travel along the rail 40.

FIG. 2 is a front view of the cutting device 32, FIG. 3 is a partial plan view, and FIG. 4 is a partial right side view.
The cutter base 41 is provided with a blade 42 and a lifting cam 43 for cutting. The lifting cam 43 is a rail 40
The follower roller 4 provided at one end of the lever 44 at one end of the
5 is pushed up, and the cloth covering sheet 23 is pressed toward the rail 40 by the tip end 44a of the lever 44. The cutter base 41 has
A traveling roller 46 is pivotally supported, and a drive belt 47 is connected. The drive belt 47 is supported by a support pulley 48 provided on the column 26a. The cutter table 41 is the cutting table 2
When it moves to one side of No. 5, it is detected by the position sensor 49. The position sensor 49 is a sensor mounting plate 49a.
Is attached to the rail 40. Rail 40
It is supported by the bracket 50. The lever 44 is swingably displaceable around a shaft 51a that is erected on the lever mount 51. The arm of the lever 44 on the side of the follower roller 45 is urged toward the rail 40 by the spring 51b.
When the cutter base 41 moves to the position of the lever mount 51, the push-up cam 43 moves the tip 44a of the rail 40 to the rail 40.
Push it to the side. The tip 44a cuts the cloth covering sheet 23 by the blade 42, and therefore presses the cloth covering sheet 23 toward the rail 40 side and restrains the cloth covering sheet 23 at the initial stage of cutting. When the cutter base 41 moves and the pressing of the tip end 44a of the lever 44 by the push-up cam 43 is released, the restraint state of the cloth covering sheet 23 is released, but since the slit is made once, the subsequent cutting is easy. . As shown in FIG. 3, the restrained state is released even when the cutter base 41 is at the standby position on the one end side, and when the cutter table 41 is pulled from the cutting table 25 side or when the cover sheet material 31 is replaced,
The fabric covering sheet 23 can be freely pulled out and rewound. The pressed state and the released state of the lever 44 are shown by a two-dot chain line and a solid line in FIG. 3, respectively.

5 and 6 show the construction related to the driving of the feeding roller 29. 5 shows the state viewed from the back side of FIG. 1, and FIG. 6 shows the state viewed from the left side of the paper of FIG. The drive motor 52 for driving has a built-in gear for deceleration, and the output shaft thereof is provided with a pulley 53. The rotational driving force is transmitted from the pulley 53 via the belt 54, and is transmitted to the pulley 55 provided on the shaft of the feeding roller 29. The cutting motor 56 for causing the cutter base 41 to travel along the rails 40 similarly transmits a driving force from the pulley 48 to the driving belt 47 by belt driving.

FIG. 7 shows the construction of a system in which a spreading machine capable of automatically carrying out the spread cloth is connected to the upstream side of the cutting machine 21 of this embodiment. The cutting machine 21 is provided with a cutting carriage 57 that can move on the cutting table 25 in the X direction, which is the left-right direction in FIG. 7. Cutting carriage 5
7, a cutting head 58 movable in the Y direction perpendicular to the paper surface of FIG. 7 is provided, and a blade for cutting the material is provided. The cutting machine 21 is controlled together with the retraction machine 60 by an integrated control device 59 that performs overall control. The integrated control device 59 is connected to a cutting design system, a production management system, or the like via an online line to form a network. From the supply device 26 provided on the air table 24, the fabric covering sheet 23 is supplied onto the loaded laminated sheet 24. After the cutting, the roll 57a provided on the cutting carriage 57,
Between the stand 25a on the end of the cutting table 25,
The fabric covering sheet 23a is added.

The spreading machine 60 is provided with a spreading carriage 62 which can travel on the spreading table 61 in the left-right direction in FIG. The cloth spreading carriage 62 mounts a roll-shaped material sheet raw material 63, pulls out the material sheet disentangled from the lifter 64, and spreads it on the spreading table 61 by a predetermined length. A cutter is provided in the lifter 64 to cut the dough sheet pulled out by a predetermined length. The dough sheets are stacked, and the lifter 64 rises according to the stack height. In this way, the laminated sheet 65 is formed on the spreading table 61. When the material sheet is made of a soft material or a material having a coarse mesh, it is pierced at the tip of the bristle brush 36 forming the cutting support surface 37 of the cutting table 25, so that the underlay sheet 66 is laid. The underlay sheet 66 is made of kraft paper or the like having holes at regular intervals, and generally has a larger area than the laminated sheet 64.

The extending carriage 62 is provided with a catching means realized by a foot presser 67 or the like. The foot presser 67 can be displaced up and down by a cylinder 68. Air is ejected from the lower surface of the spreading table 61 to facilitate the carrying out of the spread laminated sheet 65. First, the reciprocating carriage 62 travels and moves to a predetermined position with the top of the laminated sheet 65 as a reference, and the foot presser 6
7, the underlay sheet 66 is pressed and captured. By advancing the retraction carriage 62 with air blown from below, the laminated sheet 65 can be carried out to the cutting table 25 side of the cutting machine 21 while being placed on the underlay sheet 66. The underlay sheet 66 is supplied from a roll-shaped original sheet 69 of underlay sheet, and is spread on the retraction table 61 using the foot presser 67 of the retraction carriage 62 before the retraction is started. It should be noted that the carry-out is performed by the spreading table 61.
May be performed as a conveyor drive system like the cutting table 25.

FIG. 8 shows an electrical configuration for controlling the system of FIG. The cutting machine 21 includes a central processing unit 70 realized by including a microcomputer and the like, and has a cutting carriage 57, a cutting head 58, and a conveyor 3.
5, the suction motor 38, the air table 24, and the supply device 26 are controlled. In this control, a carry-in cloth detection signal from the cloth sensor 33 in the supply device 26 is used. The integrated control device 59 controls the cutting machine 21, the blower motor 72 for ejecting air to the spreading table 61, and the spreading carriage 62 according to the cutting and spreading data 71 created by the computerized design system. A central processing unit 80 including a microcomputer is also included in the retraction carriage 62, and in response to a signal from the carriage position detector 81, a carriage traveling motor 82, a retraction motor 83, a feeding motor 84, The lifter 64 is moved up and down, the cutter 85 built in the lifter 64, the cylinder 68 of the foot presser 67, and the like are controlled.

FIG. 9 shows the general operation of the system of FIG. Spreading is started from step a1 and is finished at step a2. At step a3, the reciprocating carriage 62 moves to the catching position, and at step a4, the cylinder 68 is operated to cause the foot presser 67 to move the laminated sheet 65.
To capture. In step a5, the blower motor 74 is operated to eject air from the lower surface of the spreading table 61. At step a6, the spreading carriage 62 is moved to the cutting machine 2
The laminated sheet 65 is carried out by traveling to the first side and moving forward. In step a7, the dough sensor 33 of the feeding device 26
Detects the leading edge of the laminated sheet carried out from the retraction machine.
In step a8, the feeding motor 52 is operated to feed the covering sheet 23. In step a9, the air table 24 is operated to eject air from the air nozzle 34, the conveyor 35 is operated to drive the conveyor, and the suction motor 38 is operated to perform vacuum suction. As a result, the laminated sheet 22 has its surface covered with the fabric covering sheet 2
It is held on the cutting support surface 37 in a state of being covered with 3, and the cutting in step a10 becomes possible.

FIG. 10 shows in more detail the related operation of each element constituting the system of FIG. 7 with the vertical direction as a time axis. In step b1, the spreading carriage 62 of the spreading machine 60 stands by at the origin, which is the reference position. Step b
In 2, the underlay sheet original fabric 69 is set. In step b3, the cylinder 68 is operated so as to descend,
The foot presser 67 is turned on. Foot presser 67
Captures the underlay sheet, and when the spreading carriage 62 is moved and moved in step b4, the underlay sheet is carried in in step b5. After the underlay sheet 66 has been carried in by a predetermined length, the cylinder 68 is raised and the foot presser 67 is turned off in step b6.

Next, in step b7, the cloth sheet is spread. When the spread is performed, the spread carriage 62 stands by at a predetermined position in step b8. This predetermined position is a position for catching the fabric that has been stretched and laminated. In step b9, the cylinder 68 is lowered to move the foot presser 6
Turn 7 on. In step b10, the retraction carriage 62 is run. In this way, the foot presser 67
In the state in which the cloth is captured in step b10, the cloth is carried into the cutting machine in steps b11. The stretch carriage 62 is step b
At 12, the cylinder 68 is raised and the foot presser 67 is turned off. In step b14, the extension carriage 62 returns to the origin and stands by.

On the other hand, in the cutting machine 21, the cutting carriage 57 and the cutting head 58 are made to stand by at a predetermined origin position in step b20. In the supply device 26, the covering sheet raw material 31 is set in step b21, the pressing roller 30 is opened in step b22, the cloth covering sheet 23 is hung between the supporting rollers 27 and 28 in step b23, and the pressing roller is pressed in step b24. Close 30. In step b30, the carry-in switch provided in the cutting machine 21 is turned on, and in step b31, air is blown from the air table 24. In step b32, the feeding motor 52 rotates the feeding roller 29 to feed the cloth covering sheet 23. In step b33, the feeding roller 29 is stopped at a position where the length of the fed cloth covering sheet 23 covers the entire surface of the air table 24. In the air table 24, the cutting table 25
Since the air is blown toward the sheet, the forward end of the fed cloth covering sheet 23 is guided and guided toward the cutting table 24 to be inclined. At the next step b34, the suction motor 38 is driven to start suction, and the conveyor 35 is activated.

When the laminated sheet 65 is unloaded from the web spreading machine 60 side and loaded into the cutting machine 21 side, it is detected by the cloth sensor 33 of the feeding device 26. In step b35,
After the length of the air table 24, for example, a time required to carry in by 0.5 m, that is, a time obtained by dividing 0.5 by the material carry-in speed (m / sec), the feeding roller 29 is fed.
Is rotated in association with the conveyance of the conveyor 35, and the dough covering sheet 23 is further fed. The payout speed is equal to or lower than the carry-in speed, and is preferably about the same. With the fabric covering sheet 23 sufficiently covering the laminated sheet 22 on the air table 24, in step b36, the feeding roller 29 is stopped. The laminated sheet 22 is further conveyed on the conveyor 35, and when the leading edge reaches a predetermined position in step b37, the carry-in is completed, and the conveyor 35 is stopped in step b38. When the loading of the laminated sheet 22 is completed,
The covering of the cloth covering sheet 23 is automatically completed and can be cut.

At step b40, the stopped conveyor 3
The laminated sheet 22 and the cloth covering sheet 23 are vacuum-sucked and held on the sheet 5, and the cutting is performed by using the cutting head 58 waiting at the origin in step b20. During or after cutting, in step b41, the cloth covering sheet 2
The rear end of 3 is cut by the cutting device 32. In the case of continuous cutting, the material covering sheet 23 is not cut until the final cutting is completed. At step 42, the conveyor 35 is driven to carry out the cut fabric for carrying out the cut laminated sheet 22.

In step b33, the cloth covering sheet 23 is fed further longer than the length of covering the entire air table 24, and in step b34, the leading end is sucked by the cutting table 25 and the conveyor 35 is activated. The covering sheet 23 is guided and guided by the conveyor 35 to be pulled. At this time, a one-way clutch is provided on the shaft of the feeding roller 29 in order to prevent an excessive force from being applied to the cloth covering sheet 23.

FIG. 11 shows the configuration of another embodiment of the present invention. The same reference numerals are attached to the portions corresponding to the embodiment of FIG. In this embodiment, the cutting table 85 is not provided with the air table 24 as in the embodiment of FIG. 1, but the conveyor 35 is provided over almost the entire surface. In this embodiment, the front end of the cloth covering sheet 23 fed from the supply device 26 is sucked by the surface of the conveyor 35, and the conveyor 35 is conveyed to guide the cloth covering sheet 23. The carried-in laminated sheet is immediately held on the conveyor 35 by vacuum suction, and while being carried in by the conveyor 35, it is covered with the supplied fabric covering sheet 23.

FIGS. 12 and 13 show FIGS. 1 and 11.
The structure relevant to the pressing roller 30 in the embodiment of FIG. The pressing roller 30 is provided so that the feeding roller 29 can reliably feed the cloth covering sheet 23. The shaft 91 of the pressing roller 30 is provided with the above-described one-way clutch and is axially supported by the free end portion of the arm 92, and presses the material covering sheet 23 toward the feeding roller 29 side by its own weight. FIG. 12 shows the pressed closed state. When setting a new covering sheet material 31,
As shown in FIG. 13, the pressing roller 30 is extended to the feeding roller 2
Separate from 9. The operation is performed manually, and in the state where the pressing is released as shown in FIG. 13, the gravity of the pressing roller 30 acts on the right side of FIG. 13 from the fulcrum 93 of the base end portion of the arm 92, so that the released state of the pressing is It will be retained if no external force is applied. A spring 94 is provided to facilitate manual operation.

In each of the above-described embodiments, a mechanism for guiding and guiding the unwound dough-covered sheet 23 is not provided in the feeding device 26, but, for example, an inclined plate is placed below the cutting device 32. It is also possible to provide and guide the material to the cutting table 25 side while contacting the cloth covering sheet 23 hanging vertically downward. In addition, an air jet nozzle or a small fan is provided in the supply device 26,
You may make it guide | guide and guide the cloth | coated sheet | seat 23 which was sent out by air to the cutting table side. Further, the supply device 26 may also run on the cutting table in synchronization with the loading of the dough.

[0047]

As described above, according to the present invention, when the cloth is carried into the cutting support surface, the covering sheet is fed out according to the conveyor driving of the cutting support surface and the covering sheet is automatically supplied to cover the surface of the cloth. Can be covered with a sheet. Since the covering sheet is also covered when the cloth is carried into the cutting support surface, the cutting can be started quickly.

Further, according to the present invention, by the cutting means,
The trailing edge of the covering sheet covering the surface of the dough can be automatically cut.

Further, according to the present invention, since the covering sheet is guided and guided in the conveyor driving direction of the cutting support surface, the cloth surface can be smoothly covered when the cloth is carried in.

Further, according to the present invention, the cover sheet is guided and guided in the conveyor driving direction of the cutting support surface by the air blown from below. When an air table for carrying in the dough is provided in the dough carry-in route, the configuration can be effectively used for guiding and guiding the covering sheet.

Further, according to the present invention, it is possible to reliably guide and guide the cover sheet in the direction of the cutting support surface while the guide means contacts the cover sheet.

Further, according to the present invention, the spreading sheet and the automatic cutting machine are interlocked with each other, and while the feeding of the covering sheet is carried out in association with the discharging of the cloth from the spreading machine, the covering sheet is provided on the cutting support surface. The dough covered with can be supplied automatically.

Further, according to the present invention, the covering sheet is unwound from the roll around which the covering sheet is wound in association with the feeding speed of the cloth, and the covering sheet is guided and guided in the direction of the cutting support surface to cover the cloth. Cover with a sheet. Since the covering sheet can be smoothly covered with the cloth when it is carried into the cutting support surface of the conveyor drive system, the covering sheet can be automatically supplied without requiring any manpower.

Further, according to the present invention, the air-impermeable covering sheet can be sucked and easily guided and guided in the conveyor driving direction.

Further, according to the present invention, the air is blown out from the cloth carry-in path to guide the covering sheet fed out. When the air jetting mechanism is provided as an air table or the like for loading the dough, it is possible to effectively guide and guide the covering sheet.

Further, according to the present invention, the spreading machine capable of carrying out the spread material and the automatic cutting machine are interlocked to automatically perform the spreading and the cutting of the spread material according to the cutting data. It can be carried out.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a main part of a first embodiment of the present invention viewed from the front.

2 is a front view of the cutting device 32 of FIG. 1. FIG.

FIG. 3 is a partial plan view of the cutting device 32.

FIG. 4 is a partial right side view of the cutting device 32.

5 is a partial rear view of the supply device 26 of FIG.

6 is a diagram of the supply device 26 of FIG. 5 viewed from the left side of the paper surface of FIG.

FIG. 7 is a simplified front view showing a systematic configuration of the cutting machine 21 of the embodiment shown in FIG. 1 together with a spreading machine.

8 is a block diagram showing an electrical configuration of the system of FIG.

9 is a flowchart showing the operation of the system of FIG.

10 is a time chart showing an interlocking state of each unit in the system of FIG.

FIG. 11 is a front sectional view showing another embodiment of the present invention.

FIG. 12 is a front sectional view showing a configuration related to the pressing roller 30 of FIGS. 1 and 11.

FIG. 13 is a front sectional view showing a configuration related to the pressing roller 30 of FIGS. 1 and 11.

FIG. 14 is a simplified front view showing the prior art.

[Explanation of symbols]

 21 Cutting Machine 22 Laminated Sheet 23 Fabric Covering Sheet 24 Air Table 25 Cutting Table 26 Supply Device 27, 28 Support Roller 29 Feeding Roller 32 Cutting Device 33 Fabric Sensor 34 Air Nozzle 35 Conveyor 36 Bristle Brush 37 Cutting Support Surface 38 Suction Motor 40 Rail 41 cutter base 42 blade 43 push-up cam 44 lever 47 drive belt 49 position sensor 51 lever mount 52 feeding motor 56 cutting motor 57 cutting carriage 58 cutting head 59 integrated control device 60 spreading machine 61 spreading table 62 spreading carriage 67 feet Presser 70,80 Central processing unit 75 Cut and stretch data

Claims (10)

[Claims] 1. An automatic cutting machine that cuts parts from the cloth according to the cutting data while suctioning and holding the cloth on a conveyor-driven cutting support surface is provided with an air-impermeable covering sheet that covers the surface of the cloth. A device for supplying, a support means for supporting a roll around which a covering sheet is wound, the support means being provided upright on both sides in the width direction of the automatic cutting machine on the side of loading the dough on the cutting support surface. And a feeding means for feeding the coated sheet from the roll supported by the sheet according to the feeding of the sheet onto the cutting support surface driven by the conveyor. 2. The material coating sheet feeding device for a cutting machine according to claim 1, further comprising a cutting means provided below the feeding means for cutting the covering sheet fed out. 3. A guide means for guiding and guiding a covering sheet fed from the feeding means in a conveyor driving direction of a cutting support surface.
A device for supplying a cloth-coated sheet to the cutting machine described. 4. The cloth covering sheet for a cutting machine according to claim 3, wherein the guiding means guides and guides the covering sheet by ejecting air from below the feeding means toward the cutting support surface. Supply device. 5. The cloth covering sheet feeding device for a cutting machine according to claim 3, wherein the guiding means guides and guides in the direction of the cutting support surface while contacting the fed covering sheet. 6. A spreading machine having a carrying-out means for carrying out the unfolded cloth is installed upstream of the carrying-in side of the automatic cutting machine, and a detecting means for detecting the cloth carried in from the spreading machine, and a detecting means. 6. When the cloth is detected by the means, a control means for driving the conveyor and feeding the covering sheet from the feeding means in association with the carry-out speed of the retraction machine is included. A device for supplying a cloth-covered sheet to the cutting machine according to any one of claims 1. 7. An automatic cutting machine that cuts parts from the cloth according to the cutting data while suctioning and holding the cloth on a cutting support surface of a conveyor drive system, and an air-impermeable coating sheet that covers the surface of the cloth. A method for supplying, supporting a roll around which a covering sheet is wound, above the carry-in route of the dough on the cutting supporting surface, unwinding the covering sheet from the roll, and guiding and guiding in the direction of the cutting supporting surface. A method for supplying a cloth covering sheet to a cutting machine, comprising covering the cloth with a covering sheet at a feeding speed associated with a cloth carrying-in speed. 8. The method for supplying a cloth-covered sheet to a cutting machine according to claim 7, wherein the guide is performed by driving the conveyor while sucking the cutting support surface. 9. The method for supplying a cloth covering sheet to a cutting machine according to claim 7, wherein the guiding is performed by blowing air from the cloth feeding path into the fed covering sheet. 10. A spreading machine that can carry out the unfolded material is installed on the upstream side of the material loading path, the spreading condition and the cutting condition are set according to the cutting data, and the spreading machine and the automatic cutting are performed. The machine is interlocked according to the set spreading and cutting conditions, the spread fabric is carried out of the spreading machine, sucked by the cutting support surface and carried in, and the covering sheet is supplied so as to cover the entire fabric. The method for supplying a cloth-covered sheet to a cutting machine according to any one of claims 7 to 9, characterized in that.