JPH06329311A - Pass line changing method and device for web - Google Patents

Abstract

PURPOSE:To automatically change a pass line for a web laterally drawn by a web lateral drawing device according to the condition of a web and the downstream side operating condition. CONSTITUTION:A web feed-out mechanism 12, a lug trim web distributing mechanism, a pass line changing mechanism for a product web, and a carrier device for a product web are installed on the downstream side of a web lateral drawing device 10, and further a CPU 14 for controlling the operation of the web feed-out mechanism 12, the lug trim web distributing mechanism, the pass line changing mechanism for a product web and the carrier device for a product web is disposed. The CPU 14 controls the operation of the web feed-out mechanism 12, the lug trim web distributing mechanism, the pass line changing mechanism for a product web, and the carrier device for a product web according to the condition of a web 22 and the downstream side operating condition. Thus, the pass line for a web, which has been changed manually, can be changed automatically according to the condition of the web.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for changing a web pass line, and more particularly to changing a web pass line according to a state of a web transversely stretched by a web transverse stretching device. A method and an apparatus thereof.

[0002]

2. Description of the Related Art As a web transverse stretching apparatus, for example, Japanese Unexamined Patent Publication
There is one disclosed in Japanese Patent Publication No. 62-152721. This transverse web stretching apparatus is configured to grip both edges in the width direction of a continuously fed web before stretching with a pair of clips and stretch the web in the width direction with the clips.

Next, the main web processing work at the web outlet of the web transverse stretching apparatus will be described. If the web breaks when the unstretched web is inserted into the inlet of the horizontal web stretching device, the broken part is taken out of the device at the outlet and cut off. Edge-trimmed webs on both ends of a normally stretched web (a strip of both ends of the web that occurs when a stretched web is cut into a specified product width by a pair of cutters installed near the exit of the horizontal web stretching device) The process of separating the web) from the product web and transporting it on a different pass line from the product web pass line.

A work for guiding the leading end portion of the product web formed to have a predetermined width to the entrance portion of the web winding device of the next step through the pass line of the product web. When the web take-up device stops during the operation of the web transverse stretching device, the product web is separated from the product web pass line without stopping the web transverse stretching device and continuously conveyed on another pass line.

If the web breaks during web stretching, the product web is separated from the product web pass line and the ear trim web is separated from the ear trim web processing pass line without stopping the transverse web stretching device. Work to continuously convey on a line. Etc. The torn web and the ear trim web are crushed by a crusher and reused as a recovered raw material.

[0006]

However, since the conventional web processing work is performed manually, it requires a lot of manpower, and since there are many dangerous works, there is a drawback that the worker is in danger. . On the other hand, recently, the volume and weight of the web to be processed has increased due to the demand for larger product webs, and the demand for higher web production speeds has made it necessary to perform the above work manually. It becomes impossible to do.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a web path line changing method and apparatus capable of automatically changing the web path line according to the state of the web. .

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention uses a continuous web pass line fed from the first step, a second step in which a product web is supplied, and both ends of the web. In a method for changing a path line of a web which changes between a third step in which a part is crushed and a fourth step in which the entire broken web is crushed, breaking of the continuous web fed from the first step is prevented. A break detecting means for detecting is provided, and when a break of the web is detected by the break detecting means, both ends of the continuous web sent out from the step by the first cutter arranged after the break detecting means are cut. And the second continuous cutter cuts the width direction of the web by the second cutter and sends the whole continuous web fed out from the step through the first and second conveyors to the fourth conveyor.
When the web break is no longer detected by the break detection means, the pair of third cutters arranged at the latter stage of the break detection means moves the substantially central portion of the web to a predetermined narrow width. A narrow web cut into webs and both ends of the continuous web sent out from the first step are cut by the first cutter, the second conveyor is retracted, and cut by the third cutter. A first roller is brought into contact with the first roller, the roller is moved to bypass the path of the narrow web in the direction of the second step, and the second roller is attached to both ends cut by the first cutter. Abutting, moving the rollers to detour the paths of both ends in the direction of the third step, and cutting the narrow web detoured in the direction of the second step with a fourth cutter, That The front end of the cut small width web and the rear end of the leader web are adhered, and the leader web is moved along a predetermined path to pass the narrow web through the second step, and at the same time, the pair of The width of cutting by the cutter of No. 3 is gradually widened to the width of the product web, the width direction of both end portions detoured in the direction of the third step is cut by the second cutter, and the cut both end portions are It is characterized in that the sheet is conveyed to the third step through a driving roller facing the second roller.

[0009]

According to the present invention, the first means is provided by the tear detection means.
When breakage of the continuous web sent out from the step is detected, the cutting of both ends of the continuous web sent out from the step by the first cutter is stopped. Then, the width direction of the web is cut by the second cutter, and the entire continuous web delivered from the first step is conveyed to the fourth step via the first and second conveyors. As a result, the entire torn web is changed to the pass line in the direction of the fourth step,
A crushing process can be performed in the fourth step.

After that, when the breakage of the web is no longer detected by the breakage detecting means, the substantially central portion of the web is cut into a web having a predetermined small width by a pair of third cutters. Then, both ends of the continuous web sent out from the first step are cut by the first cutter and the second conveyor is retracted. Next, after the first roller is brought into contact with the narrow web cut by the third cutter, the roller is moved to move the narrow web path to the second width.
By detouring in the direction of the step (1) and cutting with a fourth cutter, the leading end of the cut narrow web and the trailing end of the leader web are bonded. Then, the leader web is moved along a predetermined path to pass the narrow web through the second step, and the cutting width by the pair of third cutters is gradually widened to the width of the product web. Thereby, the product web can be changed in the pass line in the direction of the second step.

Further, a second roller is brought into contact with both ends cut by the first cutter, and then the rollers are moved to detour the path of the both ends in the direction of the third step. Then, the widthwise direction of both end portions is cut by the second cutter, and the cut both end portions are conveyed to the third step via the drive roller facing the second roller.
Thereby, both ends of the web can be changed to pass lines in the direction of the third step and the crushing process can be performed in the third step.

On the other hand, when the second step is stopped, the cutting of both end portions of the continuous web by the first cutter is stopped, and the width direction of the web is cut by the second cutter to perform the first step. The entire continuous web fed from the above is conveyed to the fourth step via the first and second conveyors.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a web path line changing method and apparatus according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a top view showing the arrangement positions of a web transverse stretching device 10, a web feeding mechanism 12, a CPU 14, and a crusher 16 applied to a web path line changing device according to the present invention. 3 is a perspective view of the web feeding mechanism 12 of FIG.

[Web Horizontal Stretching Device] As shown in FIG. 1, the web horizontal stretching device 10 includes a pair of endless clips 18a,
18b and sensors 20, 20 ... Which detect the breakage of the web. The clips 18a, 18b have an interval substantially equal to the width dimension of the web 22 before transverse stretching on the inlet side (left side in the figure) 10A of the web transverse stretching apparatus 10,
On the exit side (right side in the figure) 10B, the web 2 after lateral stretching
It has an interval enlarged to have a width dimension of 2.
The clips 18a and 18b are configured to be able to grip both edges of the web 22 continuously fed from the inlet side 10A, and can travel in the feeding direction of the web 22 at the same speed as the feeding speed of the web 22. And the distance between them is gradually increasing.

The sensors 20, 20 ... Are provided in the widthwise direction of the web 22 at a predetermined interval in a substantially central portion of the web transverse stretching device 10. This sensor 20, for example,
It is an optical sensor that optically detects breakage or chipping of the web 22, and can detect breakage or chipping of the web 22 based on the difference in light reflectance depending on the presence or absence of the web 22. The CPU 14 is connected to the sensor 20 via a cable 24. The control system by the CPU 14 will be described later.

On the other hand, a pair of ear trim cutters 26a, 2
6b is arranged on the exit side 10B of the web transverse stretching apparatus 10. The pair of edge trim cutters 26a, 26b cut the edge trim web 22b (see FIG. 4) of the web 22 after lateral stretching to cut the web 22 into a predetermined product width web 22a.
(Refer to FIG. 4) It is provided at intervals so as to be cut, and is attached to recesses 28a and 28b formed on the outlet side 10B so as to be vertically movable (see FIGS. 2 and 3). Therefore, the ear trim cutters 26a, 26b can cut the ear trim web 22b when the ear trim cutters 26a, 26b ascend from the recesses 28a, 28b, respectively, and descend to lower the recesses 28a, 28b.
The ear trim web 22b cannot be cut when it is stored in. Incidentally, the ear trim cutters 26a, 26b
Is connected to a rod portion of an air cylinder (not shown) and can be moved up and down by the expansion and contraction action of this rod portion. The operation timing of the air cylinder is the CP
It is controlled by the drive signal output from U14.

A pair of web cutting cutters 30a, 30b
Are located inside the ear trim cutters 26a, 26b. The web cutting cutters 30a and 30b are used for the web 2
By traversing along the groove portion 32 formed in the width direction of the web 2, the web 22 is moved from the narrow web to the product width web 2
It can be cut into 2a. The web cutting cutters 30a and 30b are attached to the groove 32 so as to be vertically movable. Therefore, the web cutting cutters 30a and 30b can cut the web 22 when the web cutting cutters 30a and 30b move up from the groove 32, respectively, and cannot cut the web 22 when the web cutting cutters 30a and 30b descend and are stored in the groove 32. The web cutting cutters 30a and 30b are connected to a drive source (not shown) to be driven in a transverse direction, and the drive timing of this drive source is controlled by a drive signal output from the CPU 14.

[Web Delivery Mechanism] Web delivery mechanism 1
As shown in FIG. 1, 2 is connected to the outlet side 10B of the web transverse stretching apparatus 10 and has a wide conveyor 34 and a pair of narrow conveyors 36a and 36b. The pair of narrow conveyors 36a, 36b is provided with the wide conveyor 3 via a pair of substantially L-shaped guide plates 38a, 38b.
4, the guide plates 38a and 38b and the wide conveyer 34 form a flat surface without a gap.

The wide conveyer 34 is arranged at the center of the width direction of the web 22 in the same direction as the feeding direction of the web 22, and as shown in FIG.
It is stretched by 0 and 42. A drive motor (not shown) is connected to the roller 42, and the wide conveyor 34 can be moved at substantially the same speed as the feeding speed of the web 22 by the driving force from the drive motor. 46, fixed rollers 48, 5
It is stretched by 0 and 52. This moving roller 44,
46 can be moved to the position shown in FIG. 3 by the drive signal from the CPU 14 shown in FIG. Thereby, the narrow conveyor 36a is configured to be foldable. The configuration of the narrow conveyor 36a is also the same as that of the narrow conveyor 36b, and thus the description thereof will be omitted.

On the other hand, the folded narrow conveyor 36a,
An opening 54 is provided between the 36b and the guide plates 38a, 38b.
a and 54b are formed. Also, the openings 54a, 54b
Guide rollers 56a and 56b are provided below.
The guide rollers 56a and 56b are formed to be longer than the width of the ear trim web 22b shown in FIG. 4, and are attached so as to be vertically movable by a cylinder (not shown).
The guide rollers 56a and 56b are provided on the narrow conveyor 36.
2a and 36b descend in the pre-folding state shown in FIG. 2 to enter below the conveyors 36a, 36b, and rise in the folding state shown in FIG. 3 to raise the pass rollers of the ear trim web 22b. Can play the role of.

Further, below the guide rollers 56a and 56b, nip rollers 62a and 62b each composed of a pair of rollers 58 and 60 are arranged. The nip rollers 62a and 62b are used for the ear trim webs 22b and 22 sorted by the ear trim web sorting mechanism described later.
It is a drive roller that can guide the small crushers 64a and 64b by nipping b.

Further, the wide conveyor 3 shown in FIGS.
A pass roller 66 shown by a chain double-dashed line in the drawing is disposed above the pair of narrow conveyors 36a and 36b. The pass roller 66 has a mechanism that can be retracted to information by a cylinder, a screw or the like (not shown), and is retracted to information when the sensor 20 shown in FIG. [Ear Trim Web Sorting Mechanism] The ear trim web sorting mechanism 100 is the web feeding mechanism 1 shown in FIG.
2 is arranged below the ear trim cutter 26a (26b) shown in FIG. The sorting mechanism 100 has an arm 102, and the arm 102 is arranged in the feeding direction of the ear trim web 22b. At the base end portion 102 a of the arm 102, the arm 102
A rotating shaft 104 for horizontally moving and rotating is attached, and a nip roller 106 and a path roller 108 of an ear trim web are rotatably attached to a tip end portion 102b thereof.

Further, in the distributing mechanism 100, when the arm 102 pivots clockwise about the pivot shaft 104 as a fulcrum and comes to the position shown by the solid line, the ear trim web 2 is moved.
2b is pushed down by the nip roller 106 and the pass roller 108 to move the ear trim web 22b to the nip roller 10
6 and the nip roller 110 provided so as to face the nip roller 106 can make a nip. This allows the path line of the ear trim web 22b to be changed from a straight line to a mountain shape. Further, the cutter 112 is provided so as to be able to cut the ear trim web 22b nipped by the nip roller 106 and the nip roller 110 in the width direction. The uncut ear trim web 22b is fed to the crusher 16 shown in FIG. 1, and the uncut ear trim web 22b is fed to the nip roller 110 driven at substantially the same speed as the web speed and the nip roller 106 driven to rotate. It is nipped and sent to the crusher 64.

On the other hand, the rotating shaft 104 is connected to a drive motor (not shown). This drive motor and the cutter 1
12 is controlled by a drive signal from the CPU 14 shown in FIG. [Product Web Pass Line Changing Mechanism] As shown in FIG. 6, the product web pass line changing mechanism 68 is arranged below the web feeding mechanism 12. The pass line changing mechanism 68 has an arm 70, and the arm 70 is arranged such that its longitudinal direction is the same as the feeding direction of the web 22. A rotation shaft 72 is attached to a base end portion 70a of the arm 70, and a nip roller 7 is attached to a tip end portion 70b thereof.
4 and the pass roller 76 are rotatably attached.

Further, when the arm 70 rotates about the rotation shaft 72 as a fulcrum and stands up at the position shown by the solid line, the pass line changing mechanism 68 nips the narrow web 23 cut by the web cutting cutters 30a and 30b. And the narrow web 23 can be nipped by the nip roller 74 and the nip roller 78 provided above the pass roller 76. As a result, the pass line of the narrow web 23 can be changed from a straight line to a mountain shape. The narrow web 23 at this time is sent to the crusher 16 shown in FIG. In addition, the nip roller 78
Is driven by a motor (not shown) at substantially the same speed as the web speed, and the tip of the narrow web 23 after cutting is
While adsorbing to a suction box 82 described later,
After being fed to the position where it overlaps the waiting leader web 94 by a predetermined amount, it stops. On the other hand, the rotating shaft 72 is connected to a drive motor (not shown). This drive motor is controlled by the drive signal from the CPU 14 shown in FIG.

A cutter 84 is provided on the side of the standing path line changing mechanism 68.
The small width web 23 can be cut in the width direction by moving the. The cutter 84, the drive motor for the nip roller 78, etc. are controlled by drive signals from the CPU 14 shown in FIG. [Carrier Device for Product Web] The carrier device 80 is shown in FIG.
As shown in FIG. 7, it is arranged above the pass line changing mechanism 68 of the product web, and as shown in FIG. 7, it has a pair of guide ropes 86a and 86b, a transfer rope 88, the suction box 82 described above, and the like. There is.

The pair of guide ropes 86a and 86b
Are stretched by a plurality of pulleys 90, 90 ... In the same direction as the feeding direction of the web 22, and are rotatably conveyed by a drive motor (not shown) at substantially the same speed as the feeding speed of the web 22. In addition, a pair of guide ropes 86a,
86b are arranged on both sides of the pass rollers 90 and 92. The transfer rope 88 is a pair of guide ropes 86a,
It is connected between 86b.

The suction box 82 is connected to a suction pump (not shown), and a large number of suction holes 82a, 82a, ... Are formed on the surface thereof as shown in FIG.
Therefore, by operating the suction pump, the leader web 94 shown in FIGS. 6 and 8 can be adsorbed to the suction box 82. In addition, a leader web 94 is attached to the transfer rope 88 via a support 95. The leader web 94 is formed to have substantially the same width dimension as the narrow web 23, and overlaps with the leading end portion of the narrow web 23 cut by the cutter 84 and fed by the nip rollers 74 and 76.

The overlapped leader web 94
An ultrasonic welding horn 96 is disposed on the front surface of the. With this ultrasonic welding horn 96, the leading end of the narrow web 23 cut by the cutter 84 and the leader web 94 can be welded in an overlapping state. Therefore, the narrow web 23 welded to the leader web 94 is conveyed by the pair of guide ropes 86a and 86b and sent to a web winding device (not shown) in the next step.

Next, the operation of the web path line changing device constructed as described above will be described. First, when the web 22 is passed through the web transverse stretching device 10, or the web 2
A case where the web 22 is broken or chipped during the stretching of No. 2 will be described. The tear or chip of the web 22 is
While the web 22 is being conveyed, its part is the sensor 2 shown in FIG.
0, 20 ... Is detected when passing over, and a signal indicating the detection information is output from the sensors 20, 20 ... to the CPU 14. The CPU 14 controls the operation of the web sending device 12 based on the signal. That is, the web 22 that has been torn or chipped is sent toward the crusher 16 by the wide conveyor 34 and the narrow conveyors 36a and 36b as shown in FIG. As a result, the web 22 is crushed by the crusher 16 and then reused as a raw material.

Next, if there is a break or chip, the sensors 20, 20
When no longer detected by the sensor, a signal indicating that the web 22 has been normally stretched in the lateral direction is output from the sensors 20, 20.
It is output to 14. Based on the signals, the CPU 14 controls the operation of the web lateral stretching device 10, the web feeding mechanism 12, the ear trim web sorting mechanism 100, the product web path line changing mechanism 68, and the product web carrier device 80.

That is, the web transverse stretching apparatus 10 shown in FIG.
Insert the ear trim cutters 26a and 26b into the recesses 28, respectively.
It is lifted from a and 28b, and both widthwise ends of the stretched web 22 are cut. And the web cutting cutter 3
0a and 30b are respectively raised from the groove 32 to form the narrow web 23. At the same time, the narrow conveyors 36a and 36b of the web feeding mechanism 12 are folded as shown in FIG. 3, and the ear trim webs 22b and 22b are separated by the ear trim web sorting mechanism 100 shown in FIG.
a, 54b to small crushers 64a, 64b shown in FIG.
Send it to.

That is, the nip roller 1 attached to the tip of the arm 102 is rotated by rotating the arm 102 around the rotating shaft 104.
06 and the pass roller 108 push down the ear trim web 22b being fed to the crusher 16. Then, the pressed down ear trim web 22b is separated by the cutter 112, and the tip of the separated ear trim web 22b is nipped by the nip rollers 62a (62b) and sent toward the small crushers 64a, 64b. As a result, the ear trim webs 22b and 22b are moved to the small crushers 64a and 64b.
It is pulverized and then reused as a raw material.

Next, the arm 70 of the product web path line changing mechanism 68 shown in FIG.
The small width web 23 being fed to the crusher 16 is pushed up by the pass roller 76 attached to the tip of the. Then, the pushed narrow web 23 is separated from the narrow web 23 being conveyed to the crusher 16 by the cutter 84. Then, the tip of the separated narrow web 23 is fed by the rotation of the nip roller 78 to a position where it overlaps a predetermined amount on the surface of the leader web 94 suction-set by the suction box 82 of the carrier device 80 for the product web. Then, using the ultrasonic welding horn 96, the narrow web 2
The tip portion of 3 is welded to the leader web 94. Then, the narrow web 23 is conveyed to the next process such as a web winding device by the guide ropes 86a and 86b.

As shown in FIG. 11, the narrow web 23 is moved to a position where the web cutting cutters 30a and 30b have the same spacing as the spacing between the ear trim cutters 26a and 26b, so that the width thereof is gradually expanded and the product is reduced. Web 22
It becomes the width dimension of a. The arm 70 is rotated to its original position after the narrow web 23 is welded. As a result, the product web 22a can be automatically separated from the broken or chipped web 22 and smoothly conveyed to the next step.

Next, the case where the downstream process of the web winding device and the like is stopped during the transportation of the product web 22a will be described. When the downstream process is stopped, the CPU 14 operates and controls the web lateral stretching device 10, the web feeding mechanism 12, the selvage trimming web sorting mechanism 100, the product web path line changing mechanism 68, and the product web carrier device 80.

That is, the product web 22a delivered from the web delivery device 12 is cut by the cutter 85 of the product web carrier device 68 shown in FIG. At the same time, the ear trim web 22b is cut by the cutter 112 shown in FIG.
4 is rotated as a fulcrum to the position shown by the chain double-dashed line in the figure.
In addition, the edge trim cutter 26 of the web lateral stretching device 10
a and 26b are housed in the recesses 28a and 28b, and the narrow conveyor 36 of the web feeding mechanism 12 shown in FIG.
A and 36b are extended to the length before folding (see FIG. 2). As a result, the web 22 from the web delivery device 10 is not delivered to the downstream side as shown in FIG. 12 and is not cut by the ear trim cutters 26a and 26b, and the wide conveyor 42 and the narrow conveyor 36 are provided.
It is sent to the crusher 16 by a and 36b.

The ear trim web 22b is provided with a crusher 64.
May be continuously crushed. When the process on the downstream side is restarted, the CPU 14 operates the web transverse stretching device 1 in the same manner as described above.
0, the web feeding device 12, the ear trim web sorting mechanism 100, the product web path line changing mechanism 68, and the product web carrier device 80 are controlled to move the product web 22a to the next step and the ear trim web 22b. It can be smoothly conveyed to the small crushers 64a and 64b.

As described above, in this embodiment, the web lateral stretching device 10, the web feeding mechanism 12, the selvage trimming mechanism 100, and the product web path line changing mechanism 6 are used.
8 and the product web carrier device 80 to the web 22
Since the operation is controlled by the CPU 14 in accordance with the above state and the operating state on the downstream side, the web processing work conventionally performed manually can be performed automatically and smoothly.

By using a polygonal blade for the cutter 84 of the pass line changing mechanism 68 for the product web described in this embodiment, a thick web 22 (Max 2 mm) can be satisfactorily cut at high speed. Further, in the present embodiment, since the connection between the narrow web 23 and the leader web 94 is made by ultrasonic welding, foreign matter is mixed in the joining as compared with the conventional joining method in which the joining is performed by the adhesive tape or the suture. Can be prevented. Therefore, it is possible to prevent foreign matter from adhering to the pass roll.

Further, the narrow conveyor 36a shown in FIG.
The folding structure of 36b is not limited to this embodiment, and small conveyors may be arranged in a line to fold the conveyor on the web transverse stretching device 10 side. Instead of folding the narrow conveyors 36a and 36b, a swivel fulcrum may be provided at a predetermined position to swivel the whole to form the gaps 54a and 54b.

Further, the layout of the narrow conveyors 36a and 36b (inclination angle, interval, etc.) may be changed according to the exit size of the transverse stretching device 10 and the entrance size of the crusher 16.

[0043]

As described above, according to the web path line changing method and the apparatus therefor according to the present invention, when the breakage detecting means detects the breakage of the continuous web sent out from the first step, The cutting of both ends of the continuous web fed from the above step by the first cutter is stopped, and the width direction of the web is cut by the second cutter, and the entire continuous web fed out from the first step is divided into the first and second Since it is conveyed to the fourth step via the second conveyor, the entire torn web can be crushed in the fourth step by changing the path line in the direction of the fourth step.

Further, when the breakage of the web is no longer detected by the breakage detecting means, the path of the narrow width web cut by the third cutter is diverted in the direction of the second step to the fourth step.
The cutter is used to cut, and the front end of the cut narrow width web and the rear end of the leader web are bonded together, and the leader web is moved along a predetermined path to pass the narrow width web through the second step. Since the cutting width by the pair of third cutters is gradually widened to the width of the product web, the product web can be conveyed while changing the pass line in the direction of the second step.

Further, after retreating the path of both ends cut by the first cutter in the direction of the third step after retreating by the second conveyor, cutting by the second cutter,
The cut both ends are conveyed to the third step through a driving roller facing the second roller. Thereby, both ends of the web can be changed to pass lines in the direction of the third step and the crushing process can be performed in the third step.

[Brief description of drawings]

FIG. 1 is a top view showing an embodiment of a web transverse stretching device applied to a web path line changing device according to the present invention.

FIG. 2 is a perspective view showing an embodiment of a web feeding mechanism applied to a web path line changing device according to the present invention.

FIG. 3 is a perspective view showing an embodiment of a web feeding mechanism applied to a web path line changing device according to the present invention.

FIG. 4 is an explanatory view showing an embodiment in which the edge trim web is sent to the small crusher by the web path line changing device according to the present invention.

FIG. 5 is an explanatory view showing an embodiment of an ear trim web sorting mechanism applied to the web path line changing device according to the present invention.

FIG. 6 is an explanatory view showing an embodiment of a product web path line changing mechanism applied to the web path line changing apparatus according to the present invention.

FIG. 7 is an explanatory view showing an embodiment of a carrier device for a product web applied to a web path line changing device according to the present invention.

FIG. 8 is a perspective view showing an embodiment of a suction box attached to a carrier device for a product web.

FIG. 9 is an explanatory view showing an embodiment in which a web path line changing device according to the present invention breaks a web and sends it to a crusher.

FIG. 10 is an explanatory view showing an embodiment in which the pass line of the narrow web is changed by the web pass line changing device according to the present invention.

FIG. 11 is an explanatory view showing an embodiment in which a product web is sent to a product web path line in the web path line changing device according to the present invention.

FIG. 12 is an explanatory view showing a processing state when the downstream side process is stopped while the product web is being sent out by the web path line changing device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Web horizontal stretching device 12 ... Web sending mechanism 14 ... CPU 16, 64a, 64b ... Crusher 18a, 18b ... Clip 26a, 26b ... Ear trim cutter 30a, 30b ... Web cutting cutter 34 ... Wide conveyor 36a, 36b ... Narrow conveyors 56a, 56b ... Guide rollers 66 ... Pass rollers 68 ... Product web path line changing mechanism 70 ... Arm 72 ... Rotating shaft 80 ... Product web carrier device 82 ... Suction box 94 ... Leader web 96 ... Ultrasonic welding horn 100 ... Ear trim web sorting mechanism 112 ... Cutter

Claims (7)

[Claims] 1. A web for changing a pass line of a continuous web fed from the first step between a second step in which a product web is fed and a third step in which a torn web is fed. In the pass line changing method, a breakage detecting means for detecting breakage of the continuous web sent out from the first step is provided, and when the breakage detecting means detects breakage of the web,
The continuous web fed out from the first step is cut in the width direction by the first cutter arranged in the latter stage of the tear detection means, and is fed out from the first step after being cut by the first cutter. The continuous web is passed through a conveyor to the third
When the web break is no longer detected by the tear detection means, the pair of second cutters arranged at the rear stage of the tear detection means moves the substantially central portion of the web to a predetermined narrow width. A web is cut, a roller is brought into contact with the narrow web cut by the second cutter, and the roller is moved to detour the path of the narrow web in the direction of the second step; The narrow width web detoured in the direction of the step 2 is cut by a third cutter, the leading end of the cut narrow width web and the rear end of the leader web are bonded, and the leader web is moved along a predetermined path. Thus, the narrow web is passed through the second step, and the cutting width by the pair of second cutters is gradually widened to the width of the product web. How to change splines. 2. A first crushing device capable of crushing the entire continuous web fed from a predetermined process, a second crushing device crushing both end portions separated from the continuous web fed from the process, A breakage detecting means for detecting breakage of the continuous web sent out from the process, and when breakage of the web is detected by the breakage detecting means, the breakage of the continuous web is detected by the first cutter disposed after the breakage detecting means. The cutting of both ends of the continuous web sent out from the process is stopped, the width direction of the web is cut by the second cutter, and the entire continuous web sent out from the process is transferred to the first and second conveyors through the first and second conveyors. 1
When the web break is no longer detected by the break detection means, the both ends of the continuous web sent out from the step are cut by the first cutter and the second conveyor is retracted. , A roller is brought into contact with both ends cut by the first cutter, and the rollers are moved to bypass the paths of the both ends toward the second crushing means. The width direction of both end portions detoured in the direction is cut by the second cutter, and the cut both end portions are conveyed to the second crushing means via a driving roller facing the roller. How to change the web pass line. 3. A continuous web pass line sent out from the first step, a second step in which a product web is supplied, a third step in which both ends of the web are crushed, and an entire torn web are A method for changing a pass line of a web for changing between a crushing fourth step and a crushing fourth step, wherein breakage detecting means for detecting breakage of the continuous web sent out from the first step is provided, and the breakage detecting means breaks the web. Is detected,
The cutting of both ends of the continuous web fed from the above step by the first cutter arranged after the tear detection means is stopped, and the width direction of the web is cut by the second cutter and fed from the above step. The entire continuous web to be conveyed is conveyed to the fourth step through the first and second conveyors, and when the breakage of the web is no longer detected by the breakage detecting means, the continuous web is disposed in the subsequent stage of the breakage detecting means. The pair of third cutters cuts the substantially central portion of the web into a web having a predetermined narrow width, and both ends of the continuous web fed from the first step are cut by the first cutter, and Of the conveyor, the first roller is brought into contact with the narrow web cut by the third cutter, and the roller is moved to move the narrow web. The path is diverted in the direction of the second step, the second roller is brought into contact with both ends cut by the first cutter, and the roller is moved to move the path of the both ends to the third path. Detouring in the direction of the process, cutting the narrow web detoured in the direction of the second process with a fourth cutter, and adhering the leading end of the cut narrow web and the rear end of the leader web to each other, The web having a small width is passed through the second step by moving the web along a predetermined path, and the cutting width by the pair of third cutters is gradually widened to the width of the product web. The width direction of both ends detoured in the direction of the step 3 is cut by the second cutter, and the cut both ends are conveyed to the third step via the drive roller facing the second roller. What you did Pass line change method of the web which is characterized. 4. When the second step is stopped, the first
While stopping the cutting of both ends of the continuous web fed from the first step by the cutter of
The whole continuous web fed from the first step by cutting the web in the width direction by the cutter
The web path line changing method according to claim 3, wherein the web path line is conveyed to the fourth step via the conveyor. 5. A web for changing a pass line of a continuous web fed from the first step between a second step in which a product web is fed and a third step in which a torn web is fed. In the pass line changing device, a breakage detecting means for detecting breakage of the continuous web sent out from the first step, and a continuous web sent out from the first step, which is arranged at a stage subsequent to the breakage detecting means, in the width direction. A first cutter that cuts into a plurality of pieces, a conveyor that guides the continuous web that is sent out from the first step after being cut by the first cutter to the third step, and disposed at a stage subsequent to the tear detection means. A pair of second cutters capable of continuously changing the cutting width from a predetermined small width to the width of the product web in the substantially central portion of the web; and the third cutter cut into a small width by the second cutter. A distribution mechanism for contacting a narrow web that is conveyed in a predetermined range to move the web in a predetermined range, and a distribution mechanism for diverting the narrow web in the direction of the second step; A third cutter that cuts in the width direction a small width web that has detoured in the direction of the step, the front end of the small width web cut by the third cutter and the rear end of the leader web are bonded together, and the leader web Moving along a predetermined path to pass the narrow web through the second step, and when the tear is detected by the tear detecting means, the first cutter causes the first cutter to move. The continuous web sent out from the process is cut in the width direction, the torn web is guided to the third process through the conveyor, and then the tear is detected by the tear detection means. If not, the second cutter cuts the web into a small width, and the sorting mechanism diverts the narrow web in the direction of the second step, and then the third cutter cuts the narrow web. Then, the front end of the cut small width web and the rear end of the leader web are adhered to each other to move the leader web along a predetermined path, and the cutting width by the second cutter is continuously increased to the width of the product web. A web path line changing device comprising: a control means for changing the change path. 6. A breakage detecting means for detecting breakage of a continuous web sent out from a predetermined step, a first grinding means capable of grinding the whole continuous web sent out from the step, and a continuous web sent out from the step. A first cutter for cutting both ends of the web, a second crushing means for crushing both ends of the web cut by the first cutter, and a central portion of the web from the predetermined step to the first crushing means A second conveyor for conveying both ends of the web from the predetermined step to second crushing means, the both ends being cut by the first cutter to be the first conveyor. The second conveyor has a retractable second conveyor so as to be guided to the second crushing means, and rollers that come into contact with both ends cut by the first cutter and move within a predetermined range. A distribution mechanism for diverting in the direction of the second crushing means, a second cutter that cuts in the width direction both ends that are diverted in the direction of the second crushing means by the distribution mechanism, A drive roller that faces the roller and supplies both ends cut by the second cutter to the second crushing means; and if a break is detected by the break detecting means, both ends of the web by the first cutter are detected. The cutting of the part is stopped, both ends of the web are cut by the second cutter, the entire web is conveyed to the first crushing means by the first and second conveyors, and the break is detected by the break detecting means. If not, both ends of the web are cut by the first cutter, and both ends cut by the sorting mechanism are cut by the second crushing means. And a control means for cutting the both ends with a second cutter and conveying the cut both ends to the second crushing means, and changing the path line of the web. apparatus. 7. The control means, when a step downstream from the predetermined step is stopped, stops the cutting of both ends of the continuous web fed from the predetermined step by the first cutter, and the second means. The cutter is used to cut the web in the width direction, and the entire continuous web fed from a predetermined process is controlled to be conveyed to the first crushing means via the first and second conveyors. 7. The web pass line changing device according to claim 6.