JP2023073630A - Wrinkle processing system and wrinkle processing method - Google Patents

Abstract

To provide a wrinkle processing system capable of winding up a wrinkle-processed sheet material while stabilizing wrinkles.SOLUTION: A wrinkle processing system 1 according to an embodiment includes: a wrinkle processor 20 for applying wrinkle processing to a long sheet material 5; a winder 30 for winding up a sheet material 5 having been applied with wrinkle processing by using the wrinkle processor 20; and support means 40 for supporting the sheet material 5 from below sent out from the wrinkle processor 20 between the wrinkle processor 20 and the winder 30 while cooling.SELECTED DRAWING: Figure 2

Description

The present invention relates to a wrinkle processing system and a wrinkle processing method.

For example, in US Pat. No. 5,200,008, (4) means for pressing the web against the driven gripping surface within the drive region, thereby driving the web longitudinally forward; deceleration means for obstructing the advance of the driven green material by the compressed material and compressing the green material longitudinally against it, wherein the deceleration means comprises: It consists of a sheet member forming a deceleration member having a working surface disposed in contact with the surface of the web, said working surface being a number of spaced apart openings disposed throughout the erosion of the portion of the web to be decelerated. decelerating lugs formed on the ridges, said lugs being disposed at an acute angle to said longitudinal orientation and applying a resistive force (FR) to corresponding portions of the web arriving at said lug locations. The resistive force of said protrusions is a deceleration component force which decelerates the approaching counterpart of the web to oppose the forward motion of the web and the movement of the counterpart of the web. and a deflection component force that deflects the path to -1 o'clock, and the multiple deceleration projections are adapted to exert a substantial deceleration effect on the contacting web as a whole. A micro-wrinkling device is disclosed.

Japanese Patent Publication No. 03-075662

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wrinkle processing system capable of stabilizing wrinkles in a wrinkled sheet material.

A wrinkling system according to the present invention comprises: a wrinkling machine that wrinkles a long sheet material; a winding machine that winds the sheet material wrinkled by the wrinkling machine; Between the processing machine and the winder, there is provided support means for supporting from below the sheet material delivered from the creasing machine while cooling the sheet material.

Further, preferably, the support means is a support machine having a top surface made of a material having a higher thermal conductivity than the sheet material, and the winder has a top surface made of a material having a higher thermal conductivity than the sheet material, and the winding machine has a The sheet material is wound up at the same speed.

Preferably, the winding speed of the winding machine is set to a value that causes the sheet material to loosen due to gravity between the creasing machine and the winding machine.

Preferably, the wrinkling machine performs wrinkling while heating the sheet material with an electric heater or a steam heater, and the supporting machine has a rotating roll that rotates following the sheet material. The sheet material is supported by the outer peripheral surface of the rotating roll.

Further, preferably, the wrinkling machine is configured to be able to set a delivery speed of the sheet material that has been wrinkled, and the winding machine is set to the delivery speed set in the wrinkling machine. Accordingly, the winding speed is set to be slower than the delivery speed.

Further, the wrinkling method according to the present invention includes the steps of: wrinkling a long sheet material; cooling the wrinkled sheet material while supporting it from below; and winding the sheet material.

ADVANTAGE OF THE INVENTION According to this invention, the wrinkles of the sheet|seat material to which the wrinkle process was performed can be stabilized, and it can wind up.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which illustrates the wrinkle processing system 1 in this embodiment. It is a figure explaining the structure of the wrinkle processing system 1 in detail. It is a flow chart explaining a crease processing method (S10).

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments according to the present invention will be described with reference to the drawings. However, the scope of the present invention is not limited to the illustrated examples.
First, the configuration of the wrinkle processing system 1 according to the embodiment will be described.
FIG. 1 is a diagram illustrating a wrinkle processing system 1 according to this embodiment.
FIG. 2 is a diagram illustrating the configuration of the wrinkle processing system 1 in more detail.
As illustrated in FIGS. 1 and 2, the wrinkle processing system 1 is a system for wrinkling a long sheet material 5 by a dry method. The sheet material 5 is, for example, a fiber sheet such as paper, a web-like sheet, a non-woven fabric, a resin film, or a film in which a metal film or metal foil or the like is deposited on the substrate surface by vapor deposition. The sheet material 5 of this example is a high-density polyethylene fiber nonwoven fabric having a layered structure including a nonwoven fabric layer and a porous resin film layer, and is a so-called moisture-permeable waterproof sheet. The moisture-permeable waterproof sheet of this example is a stretchable waterproof sheet for residential use.
The creasing system 1 includes a payout machine 10 , a creasing machine 20 , a winder 30 , a supporting machine 40 and guide rolls 50 . The feeder 10, the guide roll 50A, the creasing machine 20, the supporter 40, the guide roll 50B, and the winder 30 are arranged in this order from the upstream side in the conveying direction of the sheet material 5. As shown in FIG.

The feeding machine 10 is a device for feeding the sheet material 5 pulled out from a roll (supply roll 6 ) around which the long sheet material 5 is wound to the creasing machine 20 . The payout machine 10 includes a payout roll 100 . The delivery roll 100 is a roll driven by the transmitted power. The feed roll 100 rotates with the supply roll 6 arranged, and feeds the sheet material 5 pulled out from the supply roll 6 to the creasing machine 20 . The rotation speed of the delivery roll 100 can be set as appropriate.

The wrinkling machine 20 is a device for wrinkling the long sheet material 5 . The creasing machine 20 includes a working roll 200 , a pressing blade 202 and a doctor blade 210 .
The processing roll 200 is a roll driven by power transmitted from a predetermined power source. The processing roll 200 of this example employs a chain drive transmission system, and is less likely to be damaged even when the processing roll 200 is in a high temperature state. Further, the roll surface of the processing roll 200 is highly friction-coated by thermal spraying and has fine unevenness. The processing roll 200 prevents slippage of the sheet material 5 fed from the feeder 10 by the finely uneven roll surface. The processing roll 200 also includes a heating mechanism (not shown) capable of heating the roll surface to a temperature at which the sheet material 5 softens. As the heating method of the heating mechanism, for example, a heating method such as an oil heater, an electric heater, or a steam heater can be selected. In addition, the processing roll 200 of this example employs a heating method using an oil heater. From the point of view of wrinkle processing, when selecting a heating method, steam heaters are used on a daily basis in paper mills, so reusing steam can reduce manufacturing costs. Moreover, when an electric heater is selected, heating can be performed at a higher temperature than with an oil heater.
In addition, if the processing roll 200 is an oil heater, the temperature of the roll surface can be raised to about 300°C. is preferably 80° C. or higher and 110° C. or lower.
Further, the creasing machine 20 can set the delivery speed of the sheet material 5 that has been wrinkled. In other words, the creasing machine 20 can set the rotation speed of the processing roll 200 . The rotation speed of the processing roll 200 is set to a rotation speed faster than the rotation speed of the take-up drive roll 300 according to the set rotation speed of the take-up drive roll 300 . Further, the processing roll 200 starts and stops rotating at the same timing as the take-up driving roll 300 .

The pressing blade 202 is a blade that presses the sheet surface of the sheet material 5 fed from the feeding device 10 against the roll surface of the processing roll 200 . The pressing blade 202 includes a base 203 connected to the air cylinder and a leaf spring 204 supported by the base 203 . By pressing the sheet surface of the sheet material 5 against the roll surface of the processing roll 200, the pressing blade 202 cooperates with the processing roll 200 to converge the sheet material 5 in the longitudinal direction. form a gap. The gap that allows the sheet material 5 to converge is a gap that the sheet material 5 cannot pass through unless it is plastically deformed, in other words, a gap that allows the sheet material 5 to pass through while being plastically deformed.
The doctor blade 210 is a supporting member that supports the lower portion of the sheet material 5 passing through the gap formed by the pressing blade 202 and the processing roll 200 . It is located downstream of the pressing blade 202 and arranged near the surface of the processing roll 200 .

The winding machine 30 is a device that winds up the sheet material 5 that has been wrinkled by the wrinkling machine 20 . A winder 30 uniformly winds the sheet material 5 while applying a tension to the sheet material 5 so as not to crush the wrinkles applied and to prevent the wrinkles from stretching and returning. Winder 30 includes a winding drive roll 300 and a winding roll 302 .
The take-up drive roll 300 is a roll driven by power transmitted from a predetermined power source. The roll surface of the take-up drive roll 300 is thermally sprayed to prevent the sheet material 5 sent from the creasing machine 20 from slipping. Further, the take-up drive roll 300 may be provided with a cooling mechanism for cooling the roll surface. The cooling method for cooling the roll surface of the take-up drive roll 300 may be, for example, a water reservoir provided inside the take-up drive roll 300 to store water, or a flow path provided to allow water to enter the flow path. It may be circulated. Moreover, the method of cooling by flowing air in a flow path may be used. Alternatively, the sheet material 5 may be directly cooled using cooling air. As a result, when the sheet material 5 after the wrinkling process is wound, the sheet material 5 in a high temperature state is cooled to contract the thermal expansion state, so that the wrinkles can be stabilized and the sheet material 5 can be wound.
Further, the winder 30 is set to a winding speed slower than the feed-out speed according to the feed-out speed set in the creasing machine 20 . In other words, the take-up drive roll 300 rotates at a slower rotation speed than the processing roll 200 , and the take-up drive roll 300 causes the take-up roll 302 to take up the sheet material 5 . The winding speed of the winder 30 , that is, the rotation speed of the winding drive roll 300 is set to a value that causes the sheet material 5 to sag between the creasing machine 20 and the winder 30 due to gravity.
Further, the take-up driving roll 300 can rotate forward or backward, and the direction of rotation can be changed as appropriate. The take-up driving roll 300 is used for winding the surface of the sheet material 5 after wrinkling with the surface pressed by the pressing blade 202 inside, and for winding the surface of the sheet material 5 with the surface pressed by the pressing blade 202 inside. The sheet material 5 is wound around the take-up roll 302 by selectively using forward rotation or reverse rotation in the case where the back surface in contact with the roll surface of the sheet material 5 is wound inside.

The take-up roll 302 is a rotating roll that is located downstream of the take-up drive roll 300 in the direction in which the sheet material 5 is conveyed and that rotates as the sheet material 5 is conveyed. The take-up roll 302 is pressed against the take-up drive roll 300 while being pulled toward the take-up drive roll 300 by the air cylinder 304 . At this time, the take-up roll 302 is pressed against the take-up drive roll 300 with a pressing force that does not crush the wrinkles on the sheet material 5 . If the take-up roll 302 presses the take-up roll 300 against the drive roll 300 while the pressure is minimized, the grip of the drive roll 300 is reduced. Because it is processed, it prevents the decrease in grip force.

The supporting machine 40 is an example of supporting means according to the present invention, and is a device that supports the sheet material 5 delivered from the creasing machine 10 from below while cooling it between the creasing machine 10 and the winder 30. is. The support machine 40 includes a support material 400 and a support roll 402 . The supporting means is not limited to the supporting member 400 of the supporting device 40 as long as it supports the sheet member 5 from below while cooling it. , may be supported while being cooled, or may be supported while being cooled by rolls.
The support member 400 is a support member that supports the sheet material 5 from below while being conveyed between the creasing machine 20 and the winding machine 30 because the sheet material 5 is loosened by gravity. The support member 400 has a top surface (top surface 400A) made of a material having higher thermal conductivity than the sheet material 5 . The support member 400 of this example is made of a material having higher thermal conductivity than the sheet member 5 . The support material 400 is, for example, a plate material of stainless steel, aluminum steel, or copper steel, and the top surface 400A, which is the plate surface thereof, is also made of a material with higher thermal conductivity than the sheet material 5, and has a smooth surface shape. ing. Although the support member 400 in this example is a single plate, it is not limited to this, and may have a double structure and pass cooling water inside. Further, the support member 400 is smoothly bent at the end located in the conveying direction of the sheet member 5 . As a result, the sheet material 5 being conveyed is not damaged.
In addition, the support member 400 has a lower surface (rear surface) of the sheet surface of the sheet material 5 to be conveyed and a top surface 400A of the support member 400 facing each other, and the lower surface of the sheet material 5 and the top surface 400A placed in contact.
Also, the support member 400 is arranged to be rotatable about a predetermined rotation axis. For example, the support member 400 rotates around a rotation shaft located near the downstream end in the transport direction. The support member 400 moves from a position where the top surface 400A supports the back surface of the sheet material 5 from below (the position indicated by the solid line) to a position where the top surface 400A is separated from the back surface of the sheet material 5 and moves in the conveying direction of the sheet material 5. The top surface 400A is rotated within the range of the position (the position indicated by the broken line). If the sheet material 5 needs to be cooled during wrinkling, the support material 400 is placed at the position indicated by the solid line. In addition, when the operator performs predetermined work such as preparation for processing the sheet material 5 or maintenance in the apparatus when the wrinkle processing is not performed, or when the sheet material 5 is wrinkled, the cooling of the sheet material 5 is difficult. When not needed, the support 400 is positioned as indicated by the dashed lines. In this example, since the sheet material 5 needs to be cooled during wrinkling, the support material 400 is arranged at the position indicated by the solid line.

The support roll 402 is a rotating roll that rotates following the sheet material 5 . The support roll 402 is adjacent to the support material 400 , is positioned downstream of the support material 400 in the direction in which the sheet material 5 is conveyed, and rotates as the sheet material 5 is conveyed. The support roll 402 supports the sheet material 5 by the outer peripheral surface of the support roll 402, that is, the roll surface. The roll surface of the support roll 402 is highly friction-coated by thermal spraying to form fine irregularities. The support roll 402 prevents the fed sheet material 5 from slipping due to its fine uneven roll surface. The roll surface of the support roll 402 has the same surface roughness as the roll surface of the take-up drive roll 300, and maintains the tension of the sheet material 5 in the section from the support roll 402 to the take-up drive roll 300. . In addition, the support roll 402 may employ a cooling mechanism for cooling the roll surface. It can be circulated inside. Alternatively, cooling air may be used to flow air into the flow path for cooling.

The guide roll 50 is a rotating roll that rotates as the sheet material 5 is conveyed. The guide rolls 50 include a guide roll 50A and a guide roll 50B. Note that the guide roll 50A and the guide roll 50B have substantially the same configuration, and are simply referred to as the guide roll 50 when there is no particular need to distinguish between them.
The guide roll 50A is positioned between the feeding machine 10 and the creasing machine 20 and guides the conveyed sheet material 5 from the supply roll of the feeding machine 10 toward the processing roll 200 of the creasing machine 20 .
The guide roll 50B is positioned between the supporter 40 and the winder 30, and guides the sheet material 5 being conveyed from the support roll 402 of the supporter 40 toward the winding drive roll 300 of the winder 30. Induce.
The guide rolls 50 are set to a roll surface roughness, a surface degree, and an arrangement position that do not cause wrinkles, sagging, and the like in the sheet material 5 being conveyed.
Thus, in the wrinkle processing system 1 of the present example, the unwrinkle machine 10, the wrinkle machine 20, the winder 30, the support machine 40, and the guide rolls 50 work together to form a sheet that has been satisfactorily wrinkled. Material 5 can be obtained.

Next, the crease processing method in the embodiment will be described.
FIG. 3 is a flowchart for explaining the wrinkle processing method (S10).
The wrinkling system simultaneously performs feeding of the sheet material 5 by the feeder 10, wrinkling of the sheet material 5 by the wrinkling machine 20, and winding of the sheet material 5 by the winding machine 30 in parallel. Therefore, for convenience of explanation of this method, the explanation will be made from the upstream side to the downstream side in the conveying direction.
As illustrated in FIG. 3, in step 100 (S100), the feeding machine 10 rotates the feeding roll 100 to pull out the sheet material 5 from the supply roll 6, pass the guide roll 50A, The sheet material 5 is sent out to.

At step 102 ( S<b>102 ), the wrinkling machine 20 wrinkles the sheet material 5 delivered from the feeding machine 10 . Specifically, the pressing blade 202 presses the front surface of the conveyed sheet material 5 against the roll surface of the processing roll 200 by means of the leaf spring 204 . The back surface of the pressed sheet material 5 is pressed against the roll surface of the processing roll 200 . The back surface of the sheet material 5 has a higher frictional resistance than the front surface, and prevents slippage on the processing rolls 200 during wrinkling. The temperature of the roll surface of the processing roll 200 is the softening temperature of the sheet material 5 (110° C. in the case of a moisture-permeable waterproof sheet), and the pressed sheet material 5 is fed while being heated. At this time, the sheet material 5 is forcibly fed through the gap between the pressing blade 202 and the roll surface of the processing roll 200, and is plastically deformed and converged to form wrinkles. For example, the sheet material 5 is wrinkled so that the length of 100 mm in the longitudinal direction becomes 38 mm or more and 45 mm or less. Further, the size of wrinkles formed on the sheet material 5 can be changed as appropriate. Therefore, the wrinkling machine 20 forms wrinkles in the softened sheet material 5 while being sent out, and sends out the wrinkled sheet material 5 to the supporting machine 40 .

In step 104 (S104), the supporting device 40 cools the wrinkled sheet material 5 while supporting it from below. Specifically, the support plate 400 supports the wrinkled sheet material 5 by bringing the lower surface of the sheet surface of the sheet material 5 into contact with the top surface 400A of the support plate 400 so that the wrinkles are formed by the own weight of the sheet 5. The sheet material 5 is supported so as not to stretch. Further, the support plate 400 is brought into contact with the sheet material 5 and cools down the heat applied by the processing rolls 200 , thereby contracting the thermally expanded state and stabilizing wrinkles on the sheet material 5 .

At step 106 (S106), the winder 30 winds the cooled sheet material 5. As shown in FIG. Specifically, the take-up drive roll 300 rotates at a rotational speed slower than that of the processing roll 200 , causing the take-up roll 302 to wind the sheet material 5 . The take-up roll 302 takes up the sheet material 5 while being pressed against the take-up drive roll 300 with a pressing force that does not crush wrinkles on the sheet material 5 . The take-up roll 302 is pressed by the take-up drive roll 300 with the pressing force kept to a minimum, so that an elastic sheet material such as a moisture-permeable waterproof sheet can be efficiently taken up.

As described above, according to the creasing system 1 of the present embodiment, the support plate 400 cools the sheet material 5 that has been wrinkled in a heated state while supporting it from below. Thus, the wrinkles of the sheet material 5 can be stabilized, so that the sheet material 5 can be wound without crushing the wrinkles. Further, by supporting the sheet material 5 from below, the sheet material 5 can be conveyed so that the wrinkles given by the weight of the sheet material 5 are not stretched.
Although the embodiments according to the present invention have been described above, the present invention is not limited to these, and various modifications, additions, and the like can be made without departing from the scope of the invention.

Next, a modification of the above embodiment will be described. In the modified example, elements having substantially the same functions and configurations as those of the above embodiment are denoted by the same reference numerals, thereby omitting redundant description.
[Modification]
In the above embodiment, the support roll 402 has a roll outer diameter of 15 cm, and the guide roll 50B has a roll outer diameter of 10 cm. For example, when a flow path for circulating cooling water is provided inside the rolls, the support roll 402 and the guide roll 50B may have a roll outer diameter of 30 cm or more and 60 cm or less, more specifically, a roll outer diameter of 50 cm. As a result, the contact area of the roll surface is increased, and the sheet material 5 can be cooled more efficiently by flowing cooling water through the provided flow path. In this way, the heat of the sheet material 5 immediately after being wrinkled can be efficiently cooled, and the wrinkles can be stabilized and the sheet material 5 can be wound.

Reference Signs List 1 wrinkling system 5 sheet material 10 unwinding machine 20 wrinkling machine 200 processing roll 202 pressing blade 210 doctor blade 30 winding machine 300 winding driving roll 302 winding roll 40 supporting machine 400 supporting material 402 supporting roll 50 guide roll

Claims (6)

A wrinkling machine that wrinkles a long sheet material,
a winding machine for winding the sheet material wrinkled by the wrinkling machine;
A creasing system, comprising support means for supporting the sheet material delivered from the creasing machine from below while cooling the sheet material between the creasing machine and the winder. The support means is a support machine having a top surface made of a material having a higher thermal conductivity than the sheet material,
The wrinkle processing system according to claim 1, wherein the winder winds the sheet material at a speed corresponding to the delivery speed of the wrinkle processing machine. 3. The creasing system according to claim 2, wherein the winding speed of the winding machine is set to a value that causes the sheet material to sag due to gravity between the creasing machine and the winding machine. The wrinkle processing machine performs wrinkle processing while heating the sheet material with an electric heater or a steam heater,
3. The creasing system according to claim 2, wherein the supporting machine has a rotating roll that is driven to rotate by the sheet material, and the sheet material is supported by the outer peripheral surface of the rotating roll. The wrinkling machine is configured to be able to set the delivery speed of the wrinkled sheet material,
The wrinkling system according to claim 3, wherein the winding machine is set to a winding speed slower than the feeding speed according to the feeding speed set in the wrinkling machine. A step of wrinkling a long sheet material;
a step of cooling the wrinkled sheet material while supporting it from below;
and a step of winding the cooled sheet material.

Images