JP2021054567A - Web-end suction device for web processing machine - Google Patents

Abstract

To provide a web-end suction device capable of suitably sucking/holding an end of a web.SOLUTION: A web-end suction device 40 comprises a table 42 that is provided for supporting a web 12 on a pass line of the web 12, an ejector-based negative-pressure generator 46 that generates negative pressure due to compressed air supplied from a compressor 44, an air cylinder unit 48 connected to the negative-pressure generator 46, a plurality of suction heads 50 that are provided in the air cylinder unit 48 and constructed to suck the web 12 by the negative pressure generated at the negative-pressure generator 46.SELECTED DRAWING: Figure 1

Description

The present invention relates to a web terminal adsorption device used when connecting webs to each other in a web processing machine for obtaining a product by winding a web unwound from a raw fabric.

For example, as shown in FIG. 17, the web 12 unwound from the original roll 14 and guided by the roller R to travel is cut in the flow direction by the cutting means 202, and the web 12 cut to a predetermined width is wound into a roll. There is a slitter 200 that is taken to form the product roll 16. In such a slitter, when the web is replaced with a new roll, the end of the web and the start of the web unwound from the roll are sucked and held by a suction device to connect the webs. (See, for example, Patent Document 1). The suction device of Patent Document 1 sucks the air of the suction box with a blower or a pump, sucks the air from a large number of holes provided in the suction plate so as to lead to the suction box, and sucks the web into the suction plate. It has become.

JP-A-2002-362799

In an air suction type suction device as in Patent Document 1, air leakage easily occurs between the suction plate and the web, and the suction property of the web is not very good. The suction plate is provided with a large number of holes assuming a web with the maximum width corresponding to the slitter, but when using a web narrower than the maximum width, air is preferentially sucked from the holes not covered by the web. Therefore, the suction property of the web deteriorates. Therefore, when a hole that is not covered by the web is formed in the suction plate, it takes time and effort to close the hole.

The present invention has been proposed in view of the above-mentioned problems related to the prior art, and an object of the present invention is to provide a web terminal adsorption device for a web processing machine capable of appropriately adsorbing web. To do.

In order to overcome the above-mentioned problems and achieve the intended purpose, the web terminal adsorption device of the web processing machine according to claim 1 of the present application is used.
It is a web terminal adsorption device used when connecting webs in a web processing machine that winds up the web unwound from the raw fabric to obtain a product.
A base portion that can support the web in the path line of the web, and
A negative pressure generator with an ejector that generates negative pressure from compressed air supplied from the compressor,
A cylinder portion connected to the negative pressure generator and arranged on the opposite side of the base portion with respect to the pass line of the web.
The cylinder portion is provided with a plurality of suction heads which are provided so as to face the web side from the base portion and are configured to be able to suck the web by the negative pressure generated by the negative pressure generator. Is the gist.
According to the invention of claim 1, since the negative pressure is generated by the negative pressure generator by the ejector, the negative pressure is not destroyed even if the web does not cover a part of the suction heads, and the suction is carried out. The web covering the head can be appropriately sucked and held.

The gist of the invention according to claim 2 is that a plurality of the cylinder portions are provided side by side in a direction intersecting the flow direction of the web.
According to the second aspect of the present invention, the web is appropriately sucked in the direction intersecting the flow direction by the suction heads provided in each of the plurality of cylinders arranged in the direction intersecting the flow direction of the web. Can be retained.

The gist of the invention according to claim 3 is that a plurality of the cylinder portions are provided side by side in the flow direction of the web.
According to the third aspect of the present invention, the web can be appropriately sucked and held in the flow direction by the suction heads provided in each of the plurality of cylinders arranged in the flow direction of the web.

In the invention according to claim 4, a plurality of suction portions including a pair of the negative pressure generator and the cylinder portion connected to the negative pressure generator are installed side by side in the flow direction of the web.
The gist is that the suction portion installed on the upstream side of the flow of the web and the suction portion installed on the downstream side in the flow direction of the web are configured to be operable independently of each other.
According to the invention of claim 4, since the suction portions that operate independently are provided side by side in the flow direction of the web, for example, the end of the web at the suction portion on the downstream side in the flow direction is held or released. It is possible to individually hold or release the start end of the web at the suction portion on the downstream side in the flow direction, and it is possible to improve usability.

The gist of the invention according to claim 5 is that the cylinder portion is provided with a plurality of the suction heads arranged in a direction intersecting the flow direction of the web.
According to the fifth aspect of the present invention, the web can be appropriately sucked and held in the direction intersecting the flow direction by the plurality of suction heads arranged in the direction intersecting the flow direction of the web.

According to the web terminal adsorption device of the web processing machine according to the present invention, the web terminal can be appropriately adsorbed and held.

It is explanatory drawing which shows typically the slitter which concerns on embodiment of this invention. It is a rear view which shows the slitter of an embodiment from the rear side. It is a schematic perspective view which shows the base part of the web terminal suction device of embodiment. It is a top view which shows the web terminal adsorption device of an embodiment, and the base part is shown by a two-dot chain line. It is a side view which shows the web terminal suction device of an embodiment, and the base part is shown by a two-dot chain line. It is a circuit diagram which shows the web terminal adsorption device of embodiment. It is explanatory drawing which shows the connection process of the web by the web terminal adsorption device of embodiment. It is a top view which shows the cutting means of an embodiment. It is a back view which shows the cutting means of an embodiment. It is a schematic perspective view which shows the positioning structure of the 1st blade in the cutting means of embodiment. It is a top view which shows the main part of the positioning structure of the 1st blade in the cutting means of embodiment. It is a vertical cross-sectional view which shows the main part of the positioning structure of the 1st blade in the cutting means of embodiment. It is a rear view which shows the main part of the positioning structure of the 1st blade in the cutting means of embodiment. It is a perspective view which shows schematicly from the front side of the winding part of the adjustment roller unit of embodiment. It is a perspective view which shows roughly one of the adjustment roller units of embodiment. It is a side view which shows roughly the adjustment roller unit of an embodiment, (a) shows the state at the time of winding a web, and (b) shows the state which retracted the adjustment roller unit from a product roll. It is explanatory drawing which shows typically the slitter which concerns on the prior art example.

Next, the web terminal adsorption device of the web processing machine according to the present invention will be described below with reference to the accompanying drawings with reference to suitable examples.

Web processing machines that perform predetermined processing on the web include slitters that cut the web to the required width and wind it into rolls, and finishing and secondary processing of the web once wound on the processing line. Examples include a rewinder that winds up again after processing. In the following embodiments, slitters will be illustrated and described. Further, examples of the web include a film made of synthetic resin, paper, a metal leaf such as aluminum, and a roll in which the web is wound around a core is called a roll. When particularly distinguished, the roll before the treatment in which the web is unwound is referred to as "raw fabric roll (or raw fabric)", and the roll formed by winding the web after the predetermined treatment is referred to as "product roll (or product roll)". Product) ".

(Overview of slitter)
As shown in FIG. 1, the slitter (web processing machine) 10 according to the embodiment includes an unwinding portion 18 that supports the raw fabric roll (raw fabric) 14, a cutting means 20 that cuts the web 12 with a predetermined width, and the like. It is provided with a winding portion 22 for winding a web 12 cut to a predetermined width into a product roll (product) 16. In the slitter 10, a pass line on which the web 12 travels from the unwinding portion 18 toward the winding portion 22 by a plurality of main body rollers (rollers) R installed between the unwinding portion 18 and the winding portion 22. Is configured. Further, the slitter 10 includes an adjusting roller unit (roller unit) 32 having adjusting rollers 28 and 30 for adjusting the web 12 to be wound on the winding core 26 held by the winding shaft 24 in the winding portion 22. The slitter 10 cuts the web 12 unwound from the original roll 14 supported by the unwinding portion 18 in the flow direction of the web 12 by the cutting means 20 in the middle of the pass line to make the web 12 having a predetermined width. Is divided into a plurality of locations by the winding portion 22 and wound around the winding core 26 to obtain a product roll 16 on which a web 12 having a predetermined width is wound.

In the following description, in the slitter 10, the side where the unwinding portion 18 is provided is the front side, and the side where the winding portion 22 is provided is the rear side, and the front-rear direction is designated. Therefore, in the embodiment, the front side where the user accesses the unwinding portion 18 is the front surface of the slitter 10, and the front side where the user accesses the winding portion 22 is the rear surface of the slitter 10. Further, in the slitter 10, the horizontal direction intersecting the front-rear direction is called the left-right direction, and the original roll 14 and the product roll 16 are supported so that the left-right direction is the axial direction of the winding core 26, and the width direction of the web 12 Is in the left-right direction. The traveling direction of the web 12 from the unwinding portion 18 to the winding portion 22 via the pass line is called the flow direction of the web 12, and as shown in FIG. 1, the flow direction of the web 12 is guided by the roller R. The direction changes.

In the slitter 10, the side on which the user works is referred to as the front side, and the opposite side may be referred to as the back side. When the user accesses the unwinding portion 18, the front side of the slitter 10 is on the front side and the rear side of the slitter 10 is on the back side. On the other hand, since the cutting means 20, the winding portion 22, and the adjusting roller unit 32 are accessed from the rear surface side of the slitter 10, the rear surface side of the slitter 10 is on the front side and the front surface side of the slitter 10 is on the back side.

(Unwinding part)
As shown in FIG. 1, the unwinding portion 18 includes a raw fabric roll supporting portion 34 that supports the raw fabric roll 14, and a plurality of guide rollers 38 that guide the web 12 unwound from the raw fabric roll 14. It includes a guide roller unit 36. In the unwinding portion 18, the original roll 14 supported by the original roll supporting portion 34 and the guide roller 38 (guide roller unit 36) are synchronized with each other, and the axis of the winding core 26 in the original roll 14 is synchronized. It is configured to move in the direction). The unwinding unit 18 determines the lateral displacement of the web 12 by detecting the edge of the web 12 pulled out from the raw fabric roll 14 by a sensor (not shown), and based on this result, the raw fabric roll 14 And the guide rollers 38, 38 are reciprocated in the left-right direction. As a result, in the unwinding portion 18, the web 12 drawn from the original roll 14 meanders due to the web 12 wound around the original roll 14 being displaced in the left-right direction. It is preventing.

(Web terminal adsorption device)
As shown in FIG. 1, in the guide roller unit 36, the end of the web 12 wound around the winding portion 22 and the raw fabric roll newly set on the raw fabric roll supporting portion 34 (unwinding portion 18). A web terminal suction device 40 used for connecting the start end of the web 12 unwound from 14 is provided. As shown in FIGS. 1 and 3 to 5, the web terminal suction device 40 includes a pedestal 42 configured to support the web 12 in the path line of the web 12. As shown in FIG. 6, the web terminal adsorption device 40 includes a negative pressure generator 46 with an ejector that generates a negative pressure by compressed air supplied from the compressor 44. As shown in FIGS. 4 and 6, the web terminal suction device 40 is provided in the cylinder portion 48 connected to the negative pressure generator 46 and the negative pressure generated by the negative pressure generator 46 provided in the cylinder portion 48. The web 12 is provided with a plurality of suction heads 50 configured to be able to suck the web 12.

(Base)
As shown in FIG. 1, the base portion 42 corresponds to the lower side of the web 12 which flows horizontally in the front-rear direction by two guide rollers 38 (first guide roller 38A and second guide roller 38B) in the guide roller unit 36. It is installed. The upper surface of the base 42 that supports the attracted web 12 is formed horizontally in line with the path line of the web 12. Further, the base portion 42 is arranged above the raw fabric roll support portion 34 and the raw fabric roll 14 set on the raw fabric roll support portion 34, and is used from the front side of the slitter 10 (the front side of the unwinding portion 18). It is accessible so that it can be reached by others. As shown in FIGS. 3 to 5, the upper surface of the base portion 42 is formed by two plate-shaped bodies arranged side by side in the flow direction of the web 12, and extends in the left-right direction between the two plate-shaped bodies. A slit 42a is provided.

(Negative pressure generator and cylinder)
As shown in FIG. 6, in the web terminal suction device 40, one cylinder portion 48 is connected to one negative pressure generator 46, and is connected to the negative pressure generator 46 and the negative pressure generator 46. A plurality of suction portions 45 including a set of cylinder portions 48 are provided. The suction portion 45 is arranged on the lower side of the base portion 42 which is opposite to the web 12 passing above the base portion 42 with the base portion 42 interposed therebetween, and the upper side is covered by the base portion 42. As shown in FIG. 4, a plurality of cylinder portions 48 (three in the embodiment) are arranged side by side in the left-right direction (direction intersecting the flow direction of the web 12) on the lower side of the base portion 42. Further, a plurality of rows of cylinder portions 48 arranged in the left-right direction are arranged on the lower side of the base portion 42 in the flow direction of the web 12 (two rows in the embodiment). Further, the cylinder portions 48 are arranged so that their lengths extend in the left-right direction, and a plurality of suction heads 50 (three in the embodiment) are separated from each other in the longitudinal direction (left-right direction: a direction intersecting the flow direction of the web 12). Is provided.

(Suction head)
As shown in FIGS. 3 to 5, the suction head 50 is installed by being fitted into an opening formed by penetrating the base portion 42 in the vertical direction so as to face the web 12 side from the base portion 42. .. The head portion of the suction head 50 in contact with the web 12 is made of an elastic body having elasticity such as nitrile rubber, silicone rubber, urethane rubber, and fluororubber.

In the web terminal suction device 40, three sets of suction portions 45 are arranged side by side in the left-right direction, and two rows of a plurality of suction parts 45 arranged in the left-right direction are arranged side by side in the flow direction of the web 12. As shown in FIG. 6, the web terminal suction device 40 has a suction portion 45 installed on the upstream side (front side) of the flow of the web 12 and a suction portion installed on the downstream side (back side) of the web 12 in the flow direction. The 45 and the 45 are configured to be operable independently of each other. Further, the web terminal suction device 40 is configured so that the suction portions 45 in the same row arranged in the left-right direction can be operated as one group. The web terminal suction device 40 operates or stops both the group of the suction units 45 on the upstream side in the flow direction and the group of the suction units 45 on the downstream side in the flow direction, or operates one group. It is possible to switch the operating state for each group, such as stopping the operation of the other group. In the embodiment, a path for sending compressed air is branched from one compressor 44 to each of the groups of the suction unit 45, and a switching means 52 such as an electromagnetic valve for controlling the flow of compressed air is provided for each branch path. (See FIG. 6). Then, on the downstream side of the switching means 52, the path for sending the compressed air is branched corresponding to the three suction portions 45 (negative pressure generator 46).

In the slitter 10, the web 12 unwound from the original roll 14 is guided so as to pass over the base 42 of the web terminal suction device 40 (see FIG. 7A). When the original roll 14 is replaced, the web terminal suction device 40 is operated so that the end of the web 12 connected to the product roll 16 is sucked by the suction head 50 and held on the base 42 (FIG. 7 (FIG. 7). c) See). In this state, necessary processing can be performed, such as cutting the end of the web 12 using the slit 42a, preparing for connection such as attaching double-sided tape or applying an adhesive. Replaced with a new raw roll 14 (see FIG. 7C), the web 12 is unwound onto the base 42 from the raw roll 14, and the start end of the web 12 is sucked by the suction head 50 on the base 42. (See FIG. 7 (d)). In this state, the slit 42a is used to cut the start end of the web 12, prepare for connection such as attaching double-sided tape or applying an adhesive, or connect the end of the web 12 to the start of the web 12. It is possible to perform necessary processing such as.

(Effect of web terminal adsorption device)
The web terminal suction device 40 is provided with a plurality of suction heads 50 so that the slitter 10 can suck and hold the corresponding maximum width web 12, but for example, if the web 12 has a width narrower than the maximum width, left and right. The suction head 50 arranged on the outer side of the direction may not be covered with the web 12. However, since the web terminal suction device 40 generates the negative pressure by the negative pressure generator 46 by the ejector, the negative pressure is not destroyed even if the web 12 does not cover a part of the suction head 50. , The web 12 can be appropriately sucked and held by the suction head 50 covered with the web 12. Further, in the web terminal suction device 40, the suction performance of the suction head 50 is not easily affected by whether or not the suction head 50 is covered with the web 12, or whether or not there is a gap between the base 42 and the web 12. , The web 12 can be held firmly. The web terminal suction device 40 contributes to the efficiency of the setup change work of the web 12 without the trouble of covering the suction head 50 even if the suction head 50 is not covered by the web 12. obtain.

The web terminal suction device 40 can appropriately suck and hold the web 12 in the left-right direction by the suction heads 50 provided in each of the plurality of cylinder portions 48 arranged in the left-right direction. Since the cylinder portion 48 is provided with a plurality of suction heads 50 arranged side by side in the left-right direction, the web 12 can be appropriately sucked and held in the left-right direction by the plurality of suction heads 50. Moreover, since a negative pressure generator 46 is provided for each cylinder portion 48 and the systems form a suction portion 45 which is independent of each other, an independent suction region is formed by partitioning each cylinder portion 48 arranged in the left-right direction. To. Therefore, even if a certain suction region protrudes from the web 12, the other suction region covered with the web 12 can be sucked by the suction head 50 to appropriately hold the web 12.

The web terminal suction device 40 can appropriately suck and hold the web 12 in the flow direction by the suction heads 50 provided in each of the plurality of cylinder portions 48 arranged in the flow direction. Moreover, since a negative pressure generator 46 is provided for each cylinder portion 48 and the systems form a suction portion 45 that is independent of each other, an independent suction region is formed by partitioning each cylinder portion 48 that is lined up in the flow direction. To. Therefore, even if a certain suction region protrudes from the web 12, the web 12 can be held by being sucked by the suction head 50 in another suction region covered with the web 12. Further, even before the start end of the web 12 is arranged in the suction region on the upstream side in the flow direction, the suction head 50 in the suction region on the downstream side in the flow direction can suck and hold the end of the web 12. The reverse pattern is also possible.

In the web terminal suction device 40, since the suction portions 45 that operate independently are provided side by side in the flow direction of the web 12, for example, the end of the web 12 at the suction portion 45 on the downstream side in the flow direction is held or released. , The start end of the web 12 at the suction portion 45 on the downstream side in the flow direction can be held or released individually. As described above, the web terminal adsorption device 40 is excellent in workability and is easy to use.

(Cutting means)
Next, with reference mainly to FIGS. 8 to 13, regarding the cutting means 20 for cutting the web 12 in the flow direction between the first blade 54 and the second blade 56 on the pass line, particularly the first blade 54. A blade positioning mechanism for adjusting the position will be described. In the embodiment, the web 12 is cut so as to form a plurality of product rolls 16 by a plurality of sets of blades 54, 56 arranged apart from each other in the left-right direction. In the embodiment, the Goebel blade is exemplified as the blades 54 and 56, but other types of blades may be used.

(Cutting means-Overview)
As shown in FIG. 9, the cutting means 20 is provided on the first blade shaft 58 supported so as to extend in the left-right direction (direction orthogonal to the flow direction of the web 12), and the first blade is provided apart from each other in the left-right direction. (Upper blade) 54 is provided. The cutting means 20 is provided on the second blade shaft 60 provided on the lower side of the first blade shaft 58 in parallel with the first blade shaft 58, apart from each other in the left-right direction corresponding to the first blade 54. It is equipped with two blades (lower blades) 56 (see FIG. 13). The cutting means 20 can adjust the amount of overlap between the first blade 54 and the second blade 56 (overlap: see FIG. 12) by the blade positioning mechanism, and the distance between the first blade 54 and the second blade 56. (Offset: see FIG. 13) can be adjusted. In the following description, the direction in which the first blade shaft 58 approaches or separates from the second blade shaft 60 and the overlap amount changes is referred to as an overlap direction. Further, the direction in which the first blade 54 moves in the axial direction of the first blade shaft 58 so that the first blade 54 approaches or separates from the second blade 56 and the offset amount changes is called the offset direction. In the embodiment, the blade positioning mechanism is provided on the mounting blocks 62 and 62 that support the first blade shaft 58 of the first blade 54, and the second blade 56 is fixed so as not to move in the overlapping direction and the offset direction. ing.

(Cut blade positioning mechanism)
As shown in FIGS. 8 and 9, each of the ends of the first blade shaft 58 is supported by the mounting block 62. When distinguishing between the two left and right mounting blocks 62 and 62, the mounting block 62 that supports the right end of the first blade shaft 58 is called the right mounting block 62A, and the mounting block 62 that supports the left end of the first blade shaft 58 is called the left. It is called mounting block 62B. Each mounting block 62 is supported by a block base (base) 64 fixed to the main frame 11A of the slitter 10, a block arm (arm) 66 movably supported with respect to the block base 64, and a block arm 66. It also includes a shaft holder (holder) 68 that detachably holds the first blade shaft 58. In the blade positioning mechanism, the block arm 66 is moved in the overlapping direction (vertical direction) with respect to the block base 64 by the feed screw mechanism portion, and the first blade shaft 58 is moved in the overlapping direction together with the shaft holder 68. , The first blade 54 is moved in the overlapping direction. Further, in the blade positioning mechanism, the block arm 66 is rotated in the offset direction (left-right direction) with respect to the block base 64 by the parallel link mechanism portion, and the first blade shaft 58 is rotated in the offset direction together with the shaft holder 68. As a result, the first blade 54 is moved in the offset direction.

(Feed screw mechanism)
As shown in FIG. 12, in the block arm 66, a guide shaft 70 extending downward from one end of the block arm 66 is pivotally supported under the block base portion 64, and the guide shaft 70 is centered on the block base portion 64. It can rotate around an axis in the vertical direction. Further, at the other end of the block arm 66, a shaft holder 68 is rotatably supported around an axis in the vertical direction. The mounting block 62 is provided with a feed screw 72 that penetrates the upper portion of the block base 64 in the vertical direction, and the feed screw 72 is screwed into the female screw portion 66a formed coaxially with the guide shaft 70 at one end of the block arm 66. It fits. A worm wheel 74 is provided at the upper end of the feed screw 72, and the worm wheel 74 meshes with a cylindrical worm 80 provided on a linking shaft 78 that is rotationally driven by an overlap motor (driving means) 76. The overlap motor 76 is installed in the right mounting block 62A. The linking shaft 78 is erected in the left-right direction between the right mounting block 62A and the left mounting block 62B, and two linking shafts 78 are provided on the linking shaft 78 corresponding to the worm wheels 74 of the feed screws 74 of the left and right mounting blocks 62A and 62B. Cylindrical worms 80 are provided on the left and right sides apart from each other. When the overlap motor 76 is driven to rotate the linking shaft 78, the feed screw 72 rotates with the rotation of the worm wheel 74 that meshes with each cylindrical worm 80, so that the feed screw 72 and the female screw portion 66a mesh with each other. As a result, the block arm 66 moves linearly in the vertical direction (overlapping direction). In this way, in the feed screw mechanism portion, the amount of overlap of the shaft holder 68 with the second blade 56 in the first blade 54 changes due to the rotation of the feed screw 72 provided corresponding to each of the shaft holder 68. It moves linearly like this. Since the left and right feed screws 62 are synchronously rotated in the same direction, the left and right block arms 66 are synchronously moved in the same direction in the vertical direction (overlapping direction).

The right mounting block 62A is provided with a position detecting means 82 for detecting the position of the block arm 66 in the vertical direction (overlapping direction), and as the position detecting means 82, for example, a potentiometer is used. The feed screw mechanism unit is configured to be able to numerically manage the overlap amount by driving and controlling the overlap motor 76 based on the information (numerical value) read by the position detecting means 82.

As shown in FIG. 12, in the mounting block 62, a spring that urges the block arm 66 toward the feed screw 62 side between the block arm 66 and the block base 64 that supports the feed screw 72 side of the block arm 66. 83 are arranged. The spring 83 of the embodiment is a compression coil spring installed between the block arm 66 and the lower part of the block base 64 by fitting the coil portion to the guide shaft 70, and feeds the block arm 66 from the lower side to the upper side. It is elastically urged toward the screw 72.

(Parallel link mechanism)
The parallel link mechanism includes the left and right block arms 66, 66 whose one end is pivotally supported around the feed screw 72 and whose other end is pivotally supported by the shaft holder 68, and the left and right paired block arms 66, 66. It is provided with a linking bar (linking section) 84 erected between the ends. In the parallel link mechanism unit, the offset amount between the first blade 54 and the second blade 56 of the left and right shaft holders 68, 68 is changed by the parallel link composed of the left and right block arms 66, 66 and the linking bar 84. It is moving in the left-right direction in synchronization. Specifically, the linkage bar 84 is moved in the left-right direction by the offset cylinder (actuating means) 86 installed in the left mounting block 62B. Further, the left mounting block 62B is provided with a stopper 87 for restricting the movement of the parallel link of the parallel link mechanism portion to the left, and the left block arm 66B (or the left shaft holder 68) hits the stopper 87 to link the parallel link. The parallel link of the mechanism is positioned. The stopper 87 has a feed screw structure in which a feed screw portion meshes with the left mounting block 62B and moves linearly in the left-right direction due to its own rotation. The stopper 87 can change its own position in the left-right direction by rotating with the stopper lever 87a, and in the embodiment, the amount of movement in the left-right direction according to the amount of rotation (rotation angle) can be determined. The offset amount can be managed numerically.

(Effect of blade positioning mechanism)
When the linking shaft 78 is rotated by driving the overlap motor 76, the feed screw 72 is rotated by the engagement of the cylindrical worm 80 and the worm wheel 74. The mesh of the female screw portion 66a and the feed screw 72 causes the block arm 66 to move up or down while being guided by the guide shaft 70. As a result, the first blade shaft 58 held by the shaft holder 68 supported by the block arm 66 moves upward, so that the outer peripheral edge of the first blade 54 does not overlap with the outer peripheral edge of the second blade 56. Is adjusted so that. On the other hand, when the first blade shaft 58 held by the shaft holder 68 supported by the block arm 66 moves downward, the outer peripheral edge of the first blade 54 overlaps with the outer peripheral edge of the second blade 56. Is adjusted to be large. In this way, the shaft holder 68 that holds the first blade shaft 58 provided with the first blade 54 is linearly moved by the feed screw mechanism portion via the block arm 66, so that the amount of overlap can be increased. It can be adjusted accurately. At this time, by controlling the feed screw mechanism portion based on the detection of the overlap amount by the position detecting means 82, the overlap amount can be adjusted with high accuracy and reproducibility. Moreover, since the overlap amount can be grasped as a numerical value, the overlap amount can be easily adjusted according to the thickness, material, and the like of the web 12.

The feed screws 72, 72 of the left and right feed screw mechanisms that move the pair of shaft holders 68, 68 that hold the first blade shaft 58 provided with the first blade 54 in the overlapping direction are the overlap motor 76. Since it is configured to be operated synchronously with the linking shaft 78 rotated by the above, it is possible to prevent the first blade shaft 58 from tilting and to adjust the overlap amount with high accuracy. Further, since the left and right feed screw mechanisms are operated by the overlap motor 76, the burden on the user can be reduced.

The feed screw mechanism portion urges the block arm 66 toward the feed screw 72 side (upward) between the block arm 66 and the lower portion of the block base portion 64 that supports the end portion of the block arm 66 on the feed screw 72 side. The spring 83 is arranged. Since the block arm 66 is elastically pushed toward the feed screw 72 by the spring 83, backlash between the feed screw 72 and the female screw portion 66a can be prevented. Therefore, by the feed screw mechanism part. The amount of overlap can be adjusted accurately.

When the linking bar 84 is moved to the left or right by the operation of the offset cylinder 86, the left and right block arms 66, 66 connected by the linking bar 84 rotate around the guide shaft 70 and are supported by the block arm 66. The offset shaft holder 68 moves to the left or right. As a result, the first blade shaft 58 held by the left and right shaft holders 68 and 68 moves to the left, and the position of the outer peripheral edge of the first blade 54 is adjusted so as to approach the outer peripheral edge of the second blade 56. .. On the other hand, by moving the first blade shaft 58 held by the left and right shaft holders 68 and 68 to the right, the position of the outer peripheral edge of the first blade 54 is adjusted so as to move away from the outer peripheral edge of the second blade 56. Will be done. In this way, the shaft holder 68 for holding the first blade shaft 58 provided with the first blade 54 is moved by the parallel link mechanism portion composed of the left and right block arms 66, 66 and the linking bar 84. Therefore, the offset amount can be adjusted accurately. Further, since the parallel link mechanism portion is operated by the offset cylinder 86, the burden on the user can be reduced.

The parallel link mechanism portion places the left block arm 66 (or shaft holder 68) on the stopper 87 provided on the left mounting block 62B for positioning in the left-right direction. At this time, the position of the parallel link mechanism portion may be regulated by the stopper 87 by the offset cylinder 86. Since the position of the stopper 87 can be changed in the left-right direction by the feed screw structure, the offset amount can be adjusted with high accuracy and reproducibility. Moreover, since the offset amount can be grasped as a numerical value depending on the position of the stopper 87, it is possible to easily adjust the offset amount according to the thickness, material, and the like of the web 12.

(Outline of roller arrangement)
As shown in FIG. 1, the slitter 10 uses the web 12 unwound from the raw fabric roll 14 as a guide roller 38 of the unwinding portion 18 provided on the subframe 11B side and a main body roller provided on the main frame 11A. (Laura) Guided by R. The slitter 10 cuts the web 12 in the flow direction by the cutting means 20 provided on the pass line formed by the main body roller R, and winds the winding portion 22 provided on the opposite side of the slitter 10 from the unwinding portion 18. The product roll 16 is manufactured by winding it on the take shaft 24.

(Guide roller)
As shown in FIGS. 1 and 7, the unwinding portion 18 is a first guide roller 38A and a first guide arranged on the upper side of the raw fabric roll 14 set on the raw fabric roll supporting portion 34 as a guide roller 38. A second guide roller 38B arranged on the rear side of the roller 38A and a third guide roller 38C arranged on the upper side of the second guide roller are provided. The unwinding portion 18 guides the web 12 pulled out upward horizontally between the first guide roller 38A and the second guide roller 38B, and then guides the web 12 upward by the second guide roller 38B, and then guides the web 12 upward, and then the third guide roller 38C. It is wrapped around and guided backwards. In this way, the guide roller 38 of the unwinding portion 18 guides the web 12 to the upper region of the slitter 10. In the embodiment, as the third guide roller 38C, a tension detection roller capable of detecting the tension of the web 12 is used.

(Main body roller)
As shown in FIG. 1, the main body roller R includes a first main body roller R1 provided behind the third guide roller 38C from the upstream side to the downstream side in the flow direction of the web 12, and the first main body roller R1. It includes a second main body roller R2 provided obliquely to the upper rear side and a third main body roller R3 provided behind the second main body roller R2. In the embodiment, the first main body roller R1 and the second main body roller R2 are arranged close to each other, and the web 12 whose direction is changed upward by the first main body roller R1 is changed to the first main body roller R1 and the second main body roller R2. It is in a form called an eslap that guides the vehicle in an "S" shape. Further, a drive roller is used as the first main body roller R1 and the second main body roller R2. Further, a nip roller NR urged toward the outer circumference of the second main body roller R2 is provided on the diagonally upper front side of the second main body roller R2, and is sandwiched between the nip roller NR and the second main body roller R2 to provide a web 12 Is to be sent. In this way, the web 12 is smoothly conveyed by the so-called eslap mode formed by the first main body roller R1 and the second main body roller R2 and the pinching by the touch roller NR.

As shown in FIG. 1, a cutting means 20 is provided between the second main body roller R2 and the third main body roller R3. The first blade 54 and the second blade 56 arranged side by side in the vertical direction in the cutting means 20 are arranged above the second main body roller R2 and the third main body roller R3. Therefore, the web 12 guided diagonally upward from the second main body roller R2 is cut between the first blade 54 and the second blade 56, and then from between the first blade 54 and the second blade 56. It is guided diagonally downward and wound around the third main body roller R3. As described above, the pass line of the web 12 in the slitter 10 is configured so as to have the highest position through the cutting means 20. Further, the third main body roller R3 provided on the downstream side of the web 12 in the flow direction of the cutting means 20 is arranged below the cutting means 20, and the roller or the like is placed on the front side (rear side) of the cutting means 20 in the horizontal direction. The means for guiding the web 12 is not arranged, and the cutting means 20 can be easily confirmed from the rear side of the slitter 10 (see FIG. 2). In the embodiment, a tension detection roller capable of detecting the tension of the web 12 is used as the third main body roller R3.

As shown in FIG. 1, on the downstream side of the web 12 of the third main body roller R3 in the flow direction, the fourth main body roller R4 is located diagonally downward in front of the third main body roller R3 (lower side of the cutting means 20). Is provided. Below the fourth main body roller R4, a first lower main body roller R5 and a second lower main body roller R6 are provided. The web 12 cut to a predetermined width is distributed from the fourth main body roller R4 toward the upper winding shaft 24 or the lower winding shaft 24. The web 12 heading for the upper stage is wound around the first adjustment roller 28 of the upper adjustment roller unit 32, passes between the first adjustment roller 28 and the take-up shaft 24, and is set on the upper take-up shaft 24. It is wound around the winding core 26. The web 12 heading for the lower stage is wound around the first adjustment roller 28 of the lower adjustment roller unit 32 via the lower main body rollers R5 and R6, passes between the first adjustment roller 28 and the take-up shaft 24, It is wound on the winding core 26 set on the lower winding shaft 24. As the fourth main body roller R4 and the second lower main body roller R6, a drive roller or a free roller can be used. In the embodiment, a tension detection roller capable of detecting the tension of the web 12 is used as the first lower main body roller R5. In the embodiment, the third main body roller R3 and the first lower main body roller R5, which are tension detection rollers, are arranged on the front side (rear side) so that the tension can be easily adjusted from the take-up portion 22 side. It has become.

As shown in FIG. 1, in the slitter 10, the take-up shaft 24 is arranged below the cutting means 20. Further, in the slitter 10, the adjusting roller unit 32 is arranged below the cutting means 20, and the adjusting roller unit 32 is configured to move linearly in the front-rear direction on the lower side of the cutting means 20. .. The slitter 10 is a main body roller R (first main body roller R1, second main body roller R2, third main body roller R3, fourth main body) that constitutes a path line of the web 12 toward the upper winding shaft 24 on the main frame 11A side. The rollers R4) are all arranged above the upper adjustment roller unit 32, and a space is provided behind the upper adjustment roller unit 32. The slitter 10 is a main body roller R (first main body roller R1, second main body roller R2, third main body roller R3, fourth main body) that constitutes a path line of the web 12 toward the lower winding shaft 24 on the main frame 11A side. The roller R4, the first lower stage main body roller R5, and the second lower stage main body roller R6) are all arranged above the lower adjustment roller unit 32, and a space is provided behind the lower adjustment roller unit 32. There is.

In the slitter 10, the cutting means 20 and the main body roller R are arranged unevenly on the rear side of the main frame 11A, and the cutting means 20 is installed closer to the rear side of the slitter 10. The slitter 10 secures a space between the cutting means 20 and the main body roller R and other members such as the guide roller 38 provided on the subframe 11B side by arranging the cutting means 20 and the main body roller R on the rear side of the main frame 11A. .. A relatively wide space is secured between the third guide roller 38C and the first main body roller R1, and this space can be used to check the web 12 and smooth out wrinkles on the web 12. it can.

(Adjustment roller unit)
With reference mainly to FIGS. 14 to 16, the adjusting roller unit 32 having the adjusting rollers 28 and 30 for adjusting the product roll 16 by limiting the amount of air entrained when the web 12 is wound up in the winding unit 22. Will be described.

(Adjustment roller unit-overview)
As shown in FIG. 14, the adjusting roller unit 32 is provided in the winding portion 22 that winds the web 12 on the winding shaft 24 to form the product roll 16. The adjustment roller unit 32 has a first adjustment roller 28 and a second adjustment roller 30 that are displaced with respect to the take-up shaft 24 according to a change in the thickness of the product roll 16 in the unit frame 88, and both adjustment rollers 28. , 30 controls the amount of entrained air when winding the web 12. The take-up portion 22 is provided with two take-up shafts 24 separated from each other in the vertical direction, and adjustment roller units 32 are installed corresponding to the upper and lower take-up shafts 24 and 24, respectively. Here, since the upper and lower adjusting roller units 32 and 32 have the same configuration except that the number of the second adjusting rollers 30 installed is different, only one side thereof will be described.

(Adjustment roller unit-unit frame)
As shown in FIG. 1, the unit frame 88 that supports the adjusting rollers 28 and 30 is arranged on the unwinding portion 18 side that unwinds the web 12 from the winding shaft 24. The unit frame 88 is provided so as to be linearly movable with respect to the main frame 11A from a position close to the winding shaft 24 (first position) toward the front toward the unwinding portion 18 side (1st position). (See FIG. 16). Specifically, as shown in FIG. 14, the unit frame 88 is configured by connecting a pair of unit plates 88a, 88a arranged to face each other on the left and right sides with a unit stay 88b extending in the left-right direction. The unit frame 88 is supported from both the left and right sides by linear motion guides 90 provided on the outside of the unit plate 88a, and is configured to be linearly movable in the front-rear direction with respect to the main frame 11A. The unit frame 88 moves in the front-rear direction by the operation of the unit actuator 92 provided between the unit frame 88 and the main frame 11A. As shown in FIG. 14, the unit frame 88 has a swivel shaft 96 in which a unit rack 94 provided on the outside of the unit plate 88a is supported so as to extend in the left-right direction between the left and right main frames 11A and 11. It meshes with a pair of pinions 98 and 98 provided apart from each other in the left-right direction. As a result, in the unit frame 88, the left and right unit plates 88a and 88a move in synchronization with each other.

As shown in FIG. 16A, the unit frame 88 constitutes a main body that guides the web 12 toward the first adjusting roller 28 between the unwinding portion 18 and the winding portion 22 in the slitter 10. It is arranged in the space below the roller R. Then, as shown in FIG. 16B, the unit frame 88 is displaced so as to enter the inside (back side) of the slitter 10 due to the forward movement toward the unwinding portion 18 side, and the first adjusting roller 28 and the second adjustment roller 28 and the second The adjusting roller 30 is retracted so as to be located below the main body roller R.

(Adjustment roller unit-1st adjustment roller)
As shown in FIGS. 14 and 15, the left and right ends of the first adjusting roller 28 are rotatably supported by the left and right unit plates 88a and 88a of the unit frame 88, respectively, and can rotate around an axis extending in the left-right direction. It is configured in. The first adjusting roller 28 is formed to be wide in the left-right direction so as to correspond to all of the product rolls 16 wound at a plurality of positions separated in the left-right direction on the take-up shaft 24. The first adjusting roller 28 is a so-called touch roller arranged so as to be pressed against the peripheral surface of the product roll 16 formed by winding the web 12 on the winding shaft 24 when the web 12 is wound. The operation-controlled unit actuator 92 of the first adjusting roller 28 linearly moves the unit frame 88 in the front-rear direction, so that the first adjusting roller 28 linearly moves forward in response to a change in the thickness of the product roll 16 accompanying the winding of the web 12. The product roll 16 is pressed with a predetermined pressing force while being displaced (see FIG. 16A). The first adjusting roller 28 moves linearly to the side opposite to the front surface of the take-up portion 22 when the unit frame 88 moves forward, and is separated from the product roll 16 supported by the take-up shaft 24 (the first position). It is possible to evacuate to (2 positions) (see FIG. 16 (b)). The first adjusting roller 28 is arranged so that its central axis is at the same height as the central axis of the take-up shaft 24.

(Adjustment roller unit-2nd adjustment roller)
As shown in FIG. 14, the adjusting roller unit 32 is provided with a second adjusting roller 30 corresponding to each of the product rolls 16 wound at a plurality of locations separated in the left-right direction on the winding shaft 24. ing. The upper adjustment roller unit 32 is provided with three second adjustment rollers 30 arranged side by side in the left-right direction corresponding to the product roll 16 wound at three places, and the lower adjustment roller unit 32 is provided with two places. Two second adjusting rollers 30 are installed side by side in the left-right direction corresponding to the product roll 16 wound by. The second adjusting roller 30 is a so-called touch roller arranged so as to be pressed against the peripheral surface of the product roll 16 formed by winding the web 12 on the winding shaft 24 when the web 12 is wound. is there. The second adjusting roller 30 is arranged above the take-up shaft 24 so as to hit the peripheral surface of the product roll 16 from the upper end to the front end.

As shown in FIGS. 14 and 15, each of the second adjusting rollers 30 is attached to the other end of the roller arm 102 whose one end is fixed to the arm shaft 100 bridged to the left and right unit plates 88a, 88a in the unit frame 88. It is provided. The other end of the roller arm 102 can be rotationally displaced with the arm shaft 100 to which one end thereof is fixed as a fulcrum. The second adjusting roller 30 is rotatably supported around an axis extending in the left-right direction with respect to the roller arm 102, and is narrower than the first adjusting roller 28 according to the left-right width of one product roll 16. It is formed. The arm shaft 100 is rotated by an arm actuator 104 installed on one of the unit plates 88a, whereby the second adjusting roller 30 is rotationally displaced around one end of the roller arm 102. As described above, in the second adjusting roller 30, the roller arm 102 swings by the operation-controlled arm actuator 104, and the winding shaft of the second adjusting roller 30 responds to a change in the thickness of the product roll 16 accompanying the winding of the web 12. The product roll 16 is pressed by a predetermined pressing force while being rotationally displaced so as to approach or move away from 24 (see FIG. 16A). Further, the second adjusting roller 30 is displaced linearly with respect to the take-up shaft 24 as the unit frame 88 linearly moves in the front-rear direction by the operation-controlled unit actuator 92. In this way, the second adjusting roller 30 is displaced in a complex manner.

As shown in FIG. 16B, the second adjusting roller 30 can be retracted so as not to come into contact with the peripheral surface of the product roll 16 by rotating upward so as to be separated from the product roll 16. .. Further, the second adjusting roller 30 is a product supported by the take-up shaft 24 by moving the unit frame 88 forward so as to linearly move to the side opposite to the front side (back side) of the take-up portion 22. It can be retracted to a position away from the roll 16. In this way, the adjusting roller unit 32 can retract the second adjusting roller 30 from the product roll 16 while keeping the first adjusting roller 28 in contact with the product roll 16. Further, the adjusting roller unit 32 can retract both the first adjusting roller 28 and the second adjusting roller 30 from the product roll 16 by retracting the unit frame 88 forward.

(Adjusting roller unit-action effect)
In the adjustment roller unit 32 described above, the unit frame 88 is provided on the unwinding portion 18 side opposite to the front side of the winding portion 22 with respect to the winding shaft 24, and the unit frame 88 is moved to the unwinding portion 18 side. Since it is configured to move, the unit frame 88 does not interfere with access from the front side of the winding portion 22. Further, since the first adjusting roller 28 and the second adjusting roller 30 are provided on the unit frame 88 and move together as the unit frame 88 moves toward the unwinding portion 18, the first adjusting roller 28 and the second adjusting roller 30 move together from the front side of the winding portion 22. The first adjusting roller 28 and the second adjusting roller 30 do not interfere with the access. Therefore, the adjusting roller unit 32 does not interfere with the work performed from the front side of the winding portion 22, such as when attaching the winding core 26 to the winding shaft 24 or when removing the product roll 16 from the winding shaft 24.

In the adjusting roller unit 32, both the first adjusting roller 28 and the second adjusting roller 30 move to the side opposite to the front surface of the winding portion 22 as the unit frame 88 moves to the unwinding portion 18 side. Since it is retracted to a position away from the product roll 16 supported by the take-up shaft 24, it does not get in the way when accessing from the front side of the take-up portion 22. Further, since the unit frame 88 is arranged below the above-mentioned cutting means for cutting the web 12 in the pass line for guiding the web 12 formed by the main body roller R, the adjusting roller unit 32 is wound up. It does not get in the way when accessing the cutting means 20 from the front side of the portion 22.

Since the first adjusting roller 28, which is the main, has a configuration that moves linearly, the product roll 16 is compared with a so-called pivot type touch roller that is attached to the tip of the swing arm and is displaced so as to swing. The change in pressing force can be reduced. Therefore, the product roll 16 can be pressed by the first adjusting roller 28 with an appropriate force to limit the amount of air, so that the product roll 16 in which the web 12 is neatly wound can be obtained.

The left and right unit plates 88a and 88a of the adjusting roller unit 32 are connected by unit stays 88b, and the rack and pinion mechanisms provided on the left and right sides of the unit frame 88 allow the adjustment roller unit 32 to move without shifting from side to side. There is. Therefore, each of the product rolls 16 formed by winding the web 12 at a plurality of locations separated in the left-right direction can be pressed by the adjusting rollers 28 and 30 with equal force.

The slitter 10 effectively utilizes the space in the vertical direction so that the main body roller R is arranged at the upper part of the device and the space under the main body roller R is used for installing the adjustment roller unit 32 that moves back and forth. The front and rear dimensions of can be made compact.

The cutting means 20 is provided at a position higher than the adjusting roller unit 32 having the winding shaft 24 and the adjusting rollers 28, 30 of the winding portion 22, and the adjusting roller unit 32 is wound on the back side of the winding shaft 24. Since the configuration is such that the adjustment rollers 28 and 30 do not get in the way and the cutting means 20 can be easily accessed from the take-up portion 22 side because the arrangement is changed by linearly moving to the take-up portion 22 side or the unwinding portion 18 side. can do. In other words, since the adjustment roller unit 32 moves horizontally in the front-rear direction on the back side, the configuration related to the adjustment roller unit 32 such as an arm is not arranged on the upper side of the adjustment roller unit 32, and the space above the adjustment roller unit 32 is not arranged. The cutting means 20 can be arranged in. In this way, the cutting means 20 can be arranged at the height of the user's eyes, not between the upper and lower winding shafts 24, 24, and an adjusting roller unit such as an arm can be placed on the front side of the cutting means 20. Since the configuration related to 32 is not arranged, the cutting means 20 is not hidden.

Since the main body rollers R (R1 to R6) on the downstream side of the web 12 in the flow direction of the cutting means 20 are arranged below the cutting means 20, the main body rollers R (R1 to R6) and the main body rollers R (R1) The web 12 guided by ~ R6) does not get in the way, and the cutting means 20 can be easily accessed from the winding portion 22 side. Since the pass line is configured so that the position through which the cutting means 20 passes is the highest, the main body rollers R (R1 to R6) and the web 12 guided by the main body rollers R (R1 to R6) do not get in the way. Instead, the cutting means 20 can be easily accessed from the winding unit 22 side.

The main body rollers R (R1, R2) provided on the upstream side of the web 12 in the flow direction of the cutting means 20 and on the downstream side of the unwinding portion 18 in the flow direction are arranged above the take-up shaft 24. Therefore, a moving space for the adjusting roller unit 32 can be secured on the back side of the take-up shaft 24.

(Change example)
The configuration is not limited to the above-mentioned configuration, and may be changed as follows, for example.
(1) The web terminal suction device may have one suction part (negative pressure generator + cylinder part), and has two or four or more suction parts arranged in a direction orthogonal to the flow direction of the web. There may be three or more suction portions arranged in the flow direction of the web.
(2) The suction heads provided in the cylinder portion are not limited to the three in the embodiment, and may be two or four or more.
(3) As in the embodiment, it is preferable that the negative pressure generator and the cylinder portion have a one-to-one relationship, but the configuration is such that two or more cylinder portions are connected to one negative pressure generator. You may.
(4) In the embodiment, a group of a plurality of suction units is controlled by the switching means, but the present invention is not limited to this, and each suction unit may be controlled by the switching means.
(5) The lead screw mechanism portion is not limited to a lead screw in a narrow sense in which the male screw portion and the female screw portion directly mesh with each other, and may be a ball screw or other screw in which the male screw portion and the female screw portion mesh with each other via a ball.
(6) The number of second adjusting rollers installed is not limited to the above-described embodiment, and can be changed as appropriate, and may be, for example, one.
(7) In the embodiment, the touch roller in which the adjusting roller is arranged so as to come into contact with the roll is illustrated, but the present invention is not limited to this, and the adjustment roller is arranged at a distance from the roll so that the distance between the roll and the roll becomes the required width. It may be a so-called near roller controlled by.
(8) Actuators as driving means and operating means of the embodiment include various actuators such as hydraulic cylinders, pneumatic cylinders, hydraulic cylinders and other fluid pressure cylinders or electric cylinders, solenoids, electric motors, servomotors and the like that use electricity. Can be used.

10 slitter (web processing machine), 12 web, 14 raw roll (raw),
16 product rolls, 40 web terminal suction devices, 42 bases, 44 compressors,
45 suction part, 46 negative pressure generator, 48 cylinder part, 50 suction head

Claims (5)

It is a web terminal adsorption device used when connecting webs in a web processing machine that winds up the web unwound from the raw fabric to obtain a product.
A pedestal provided so as to support the web in the path line of the web, and
A negative pressure generator with an ejector that generates negative pressure from compressed air supplied from the compressor,
A cylinder portion connected to the negative pressure generator and arranged on the opposite side of the base portion with respect to the pass line of the web.
The cylinder portion is provided with a plurality of suction heads that are provided so as to face the web side from the base portion and are configured to be able to suck the web by the negative pressure generated by the negative pressure generator. A web terminal adsorption device for a web processing machine characterized by. The web terminal adsorption device for a web processing machine according to claim 1, wherein a plurality of the cylinder portions are arranged side by side in a direction intersecting the flow direction of the web. The web terminal suction device for a web processing machine according to claim 1 or 2, wherein a plurality of cylinder portions are provided side by side in the flow direction of the web. A plurality of suction portions consisting of a pair of the negative pressure generator and the cylinder portion connected to the negative pressure generator are installed side by side in the flow direction of the web.
Any of claims 1 to 3 in which the suction portion installed on the upstream side of the flow of the web and the suction portion installed on the downstream side in the flow direction of the web can operate independently of each other. The web terminal adsorption device of the web processing machine according to the first item. The web terminal suction device of a web processing machine according to any one of claims 1 to 4, wherein the cylinder portion is provided with a plurality of the suction heads arranged in a direction intersecting the flow direction of the web.

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