JP2014024662A - Winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding device which can improve the quality of an obtained wound body.SOLUTION: A winding device includes a winding core 13 for winding a first sheet 4, a second sheet 5, and separation sheets 2 and 3 in a superposed manner. The length of each of non-lamination parts 4b and so forth on the first sheet 4 and the second sheet 5 is previously set to a dimension with an allowance. Each time the first sheet 4 and the second sheet 5 are wound around the winding core 13 by a predetermined length, end parts 4c and so forth on the winding start end sides of lamination parts 4a and so forth on the first sheet 4 and the second sheet 5 are detected by a first sensor 18 and a second sensor 19. While the end parts 4c and 5c on the winding start end sides of the lamination parts 4a and 5a are aligned with a first reference position K1 and a second reference position K2, respectively, by first feed chucks 14A and 14B and second feed chucks 15A and 15B, the first sheet 4 and the second sheet 5 are wound.

Description

  The present invention relates to a winding device for winding a belt-like sheet to obtain a wound body.

  Some wound bodies formed by winding a belt-like sheet have a flat shape.

  In the flat wound body, the radius of curvature of the curved portions located at both ends in the major axis direction is very small. Therefore, depending on the thickness and hardness of the wound sheet, the sheet may be damaged by bending stress applied to the curved portion.

  On the other hand, regarding a sheet in which a predetermined laminated portion is formed on the sheet surface, in recent years, the laminated portion is intermittently formed in advance along the longitudinal direction of the sheet and the laminated portion is not formed. There is also a technique of winding so that the stacked portion is positioned at the curved portion of the wound body (see, for example, Patent Document 1).

  Here, in the curved portion of the wound body where the sheet is wound several times, the sheet length becomes longer toward the outer peripheral side. For this reason, when the laminated portion is intermittently formed on the sheet in advance as described above, there is an interval between two laminated portions adjacent in the sheet longitudinal direction (the length of the non-laminated portion in the sheet longitudinal direction). By setting the sheet to be gradually longer from the winding start end side to the winding end side, the position of the plurality of laminated portions (sheet longitudinal direction end position) is the short direction (thickness) of the flat wound body Direction).

JP-A-10-270068

  However, even if the interval between the laminated portions is set to a predetermined length as described above, the thickness of each laminated portion varies, the molding error in the interval between the laminated portions, and the tension applied to the sheet during winding. As the sheet is rolled, the positional relationship between the plurality of stacked portions may be shifted due to a change in the number of sheets. As a result, there is a concern about the deterioration of the quality of the wound body.

  This invention is made | formed in view of the said situation, The objective is to provide the winding apparatus which can aim at the quality improvement of the winding body obtained.

  Hereinafter, each means suitable for solving the above-described problem will be described separately. In addition, the effect specific to the means to respond | corresponds as needed is added.

Means 1. A winding device for winding a belt-like sheet in which a plurality of laminated portions are formed intermittently along a sheet longitudinal direction, and obtaining a wound body arranged so that the plurality of laminated portions are stacked. ,
In the sheet, the length of the non-laminated portion between two laminated portions adjacent in the sheet longitudinal direction is configured to be gradually increased from the winding start end side to the winding end side in the sheet longitudinal direction. With
The length of the non-laminated part is longer than at least the minimum length required for winding the sheet, respectively, under a configuration set with a margin,
A rotatable winding core;
A first pressing means provided so as to be rotatable integrally with the core while pressing the sheet wound around the core;
Detection means capable of detecting a sheet longitudinal direction end position of a laminated portion on the sheet wound on the core;
It is configured to be movable at least along the sheet winding direction while gripping the sheet wound on the winding core, and based on the detection result of the detection means, the sheet longitudinal direction end of the laminated portion on the sheet Position adjusting means capable of aligning the position with a preset reference position;
By providing second pressing means for pressing the sheet in the aligned state,
The winding device is characterized in that the alignment is performed every time the sheet is wound by a predetermined length, and the sheet longitudinal direction end positions of the plurality of laminated portions formed on the sheet are aligned.

  According to the means 1, the length of each non-laminated portion on the sheet is set to a dimension having a margin in advance, and the sheet longitudinal direction of the laminated portion on the sheet is detected by the detecting means every time the sheet is wound a predetermined length. The edge position is detected, and the sheet is wound while the position adjusting means aligns the sheet longitudinal end position of the laminated portion with the reference position. Thereby, the position of a some laminated part can be accurately aligned, without being influenced by the manufacturing error etc. of each laminated part on a sheet | seat. As a result, it is possible to improve the quality of the wound body that is arranged so that the plurality of stacked portions are stacked.

Mean 2. A belt-shaped first sheet and a second sheet, each having a predetermined laminated portion formed intermittently along the longitudinal direction of the sheet, are wound with the strip-shaped separation sheets being overlapped, and the first sheet and the second sheet are stacked. A winding device for obtaining a wound body arranged so that the parts are alternately stacked,
In the first sheet and the second sheet, the length of the non-laminated portion between the two laminated portions adjacent to each other in the sheet longitudinal direction is gradually increased from the winding start end side to the winding end side in the sheet longitudinal direction. Configured to
Under the configuration in which the length of the non-laminated portion is longer than the minimum necessary length for winding the first sheet and the second sheet, respectively, with a margin,
A rotatable winding core;
The first sheet or the second sheet wound on the core (the first sheet aggregate in a state where the first sheet and the separation sheet are superposed, or the state in which the second sheet and the separation sheet are superposed) First pressing means provided at two different locations in the rotation direction of the core so as to be able to rotate integrally with the core while pressing the second sheet assembly),
First detection means capable of detecting a sheet longitudinal direction end position of a laminated portion on the first sheet wound on the winding core;
A second detection means capable of detecting a sheet longitudinal direction end position of the laminated portion on the second sheet wound on the core;
While gripping the first sheet (first sheet aggregate) wound around the winding core, it is configured to be movable along at least the sheet winding direction, and based on the detection result of the first detection means, First position adjusting means capable of aligning the sheet longitudinal direction end position of the laminated portion on the first sheet with a preset first reference position;
While grasping the second sheet (second sheet aggregate) wound around the winding core, it is configured to be movable at least along the sheet winding direction, and based on the detection result of the second detection means, Second position adjusting means capable of aligning the sheet longitudinal direction end position of the laminated portion on the second sheet with a preset second reference position;
The first sheet or the second sheet (the first sheet aggregate or the second sheet aggregate) in the aligned state is provided at two different positions in the rotation direction of the core so as to be pressed. By having 2 holding means,
Each time the first sheet and the second sheet (first sheet assembly and second sheet assembly) are wound by a predetermined length, the alignment is performed, and the plurality of sheets formed on the first sheet and the second sheet A winding device characterized by aligning the sheet longitudinal direction end portions of the laminated portions.

  According to the means 2, the same effects as the means 1 can be obtained.

Means 3. The two first pressing means;
The first detection means and the second detection means;
The first position adjusting means and the second position adjusting means;
The two second pressing means;
The winding device according to claim 2, wherein the first reference position and the second reference position are provided at intervals of 180 ° in the rotation direction of the core.

  For example, in the case where these are provided at intervals of 90 ° (270 °), the first sheet and the second sheet are differently aligned in a configuration that is not provided at intervals of 180 °. Must be done at the timing. As a result, the number of times of stopping of the winding core is increased, and the productivity may be reduced.

  On the other hand, according to the above-mentioned means 3, the alignment of the first sheet and the alignment of the second sheet can be performed simultaneously (during one stop). As a result, it is possible to reduce the number of times that the winding core is stopped for the alignment of the sheet, and it is possible to increase the speed of the winding device and thus improve the productivity.

  Means 4. The winding device according to any one of means 1 to 3, wherein the second pressing means is rotatably provided integrally with the core.

  According to the means 4, after the sheet in the aligned state is pressed by the second pressing means, the winding with the winding core can be resumed immediately. Thus, for example, after the sheet that has been wound on the sheet pressed by the first pressing unit and is aligned is pressed by the second pressing unit, the sheet is pressed again by the first pressing unit, Compared with a configuration in which the two pressing means are separated and then the core is driven, the time for stopping the core for sheet alignment can be shortened. As a result, it is possible to increase the speed of the winding device and thus improve the productivity.

  Here, for example, at two different locations in the rotation direction of the winding core, a pair of claw members (pressing members) are provided, and the functions of the first pressing means and the second pressing means are alternately switched in the pair of claw members. Also good. According to such a configuration, for example, the sheet that is wound on the sheet pressed by the first claw member and aligned is pressed by the second claw member. Subsequently, in this state, the core is rotated and the pressing by the first claw member is released. And after winding up a sheet | seat for a predetermined length, it winds up on the sheet | seat pressed by the said 2nd nail | claw member, and hold | suppresses the sheet | seat of the state of alignment with a 1st nail | claw member. Thereafter, such an operation is repeated. Accordingly, the sheet can be wound while the sheet is alternately pressed by the pair of claw members.

Means 5. In the peripheral surface portion of the core, comprising a flat portion formed in a substantially flat shape,
The winding device according to any one of means 1 to 4, wherein the sheet is pressed by the first pressing means and the second pressing means in the plane portion.

  In the configuration in which the sheet is pressed at the curved portion of the winding core, the sheet (sheet longitudinal direction end portion position of the laminated portion) may be misaligned. On the other hand, according to the means 5, the sheet can be stably pressed.

  Here, for example, under the configuration related to the above means 2, the winding core is composed of a pair of arcuate surfaces facing each other with its own rotation axis and a pair of plane portions facing each other with its own rotation axis. You may employ | adopt the structure used as the cross-sectional substantially ellipse shape which becomes. According to such a configuration, in manufacturing the same wound body, for example, compared with the case where the sheet is wound using a flat core, the rotation radius of the core can be made smaller. It is possible to reduce the fluttering of the sheet and to make the winding device compact.

  Means 6. The winding device according to claim 5, wherein the reference position for aligning the sheet longitudinal direction end position of the laminated portion is set corresponding to the flat portion.

  In the configuration where the sheet longitudinal end position of the laminated portion on the sheet is aligned at the curved portion of the winding core, for example, in the pressing step of pressing the wound body into a flat shape after the winding is finished, the laminated portion There is a risk that the end position of the sheet in the longitudinal direction of the sheet will be displaced. On the other hand, according to the means 6, the occurrence of such a problem can be suppressed, and the alignment of the sheet longitudinal direction end position of the laminated portion can be performed with higher accuracy.

Means 7. In the peripheral surface portion of the core, at least a concave portion that is concave toward the radial rotation axis side of the core is provided,
A pressing means for pressing the sheet wound to be convex toward the outer side in the radial direction of the core with respect to the core;
The winding device according to any one of means 1 to 6, wherein each time the sheet is wound for a predetermined length, the sheet wound on the core is recessed toward the recess.

  In the configuration in which the recess is not provided in the core and the sheet is wound so as to be convex toward the outer side of the core, the outer sheet that performs the alignment when aligning the laminated portion However, there is a possibility that the inner sheet that has already been wound is obstructed and cannot be aligned properly and smoothly. For example, a large load may be applied to the position adjusting means due to friction between the inner sheet and the outer sheet. In addition, if the inner sheet is longer than the outer sheet due to manufacturing error, etc., and the sheet is wound up in a bulge, the outer sheet must be wound up more tightly. The longitudinal end position may not reach the reference position and may not be aligned.

  On the other hand, according to the means 7, since the inner sheet is wound around the core in a recessed state at the portion where the recess is provided, the contact area with the sheet wound outside is reduced. The influence on the outer sheet can be suppressed. As a result, the sheet positioning operation can be facilitated and the positioning accuracy can be improved. As a result, the quality of the wound body can be improved.

(A) is a cross-sectional schematic diagram which shows the structure of the winding body formed in flat shape, (b) expanded the curved part which hits the edge part of the major axis direction of a winding body, and its vicinity (a). FIG. (A) is the side surface schematic diagram which showed the structure of the 1st sheet | seat, 2nd sheet | seat, and separation sheet which comprise a winding body, (b) is a plane schematic diagram of a 1st sheet | seat and a 2nd sheet | seat. . It is a schematic block diagram of a winding apparatus. It is a perspective view which shows typically schematic structure of a winding part. It is a schematic diagram for demonstrating winding operation | movement of the 1st sheet | seat in a winding core, a 2nd sheet | seat, and a separation sheet. It is a schematic diagram for demonstrating winding operation | movement of the 1st sheet | seat in a winding core, a 2nd sheet | seat, and a separation sheet. It is a schematic diagram for demonstrating winding operation | movement of the 1st sheet | seat in a winding core, a 2nd sheet | seat, and a separation sheet. (A) is a schematic diagram for demonstrating the process of removing a winding body from a core, (b) is a schematic diagram for demonstrating the temporary press process of a winding body, (c) FIG. 3 is a schematic diagram for explaining a main pressing process of a wound body. (A)-(c) is a schematic diagram for demonstrating winding operation | movement of the 1st sheet | seat by the winding core which concerns on another embodiment, a 2nd sheet | seat, and a separation sheet.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The present embodiment is an apparatus for manufacturing a flat wound body that is wound so that a plurality of strip-shaped sheets overlap each other.

  First, the structure of the wound body 1 manufactured in this embodiment will be described with reference to FIGS. FIG. 1A is a schematic cross-sectional view showing a configuration of a wound body 1 formed in a flat shape, and FIG. 1B shows a curved portion corresponding to an end in the major axis direction of the wound body 1 and its vicinity. It is the elements on larger scale of FIG. FIG. 2A is a schematic side view showing the configuration of the first sheet, the second sheet, and the separation sheet constituting the wound body 1, and FIG. 2B is a diagram of the first sheet and the second sheet. It is a plane schematic diagram.

  The wound body 1 is manufactured by winding the first sheet 4 and the second sheet 5 through the two separation sheets 2 and 3 so as to overlap each other and then pressing the sheet into a flat shape. The sheets 2 to 5 are formed with substantially the same width.

  Laminated portions 4a and 5a are intermittently formed on both the front and back surfaces of the first sheet 4 and the second sheet 5 along the sheet longitudinal direction. In addition, the part regarding the laminated parts 4a and 5a in each drawing is hatched for convenience.

  Each of the stacked portions 4a and 5a has a substantially rectangular shape in plan view, and the length D1 in the sheet longitudinal direction and the width D2 in the sheet width direction are the same. The width D2 of the stacked portions 4a and 5a in the present embodiment is set shorter than the width of the sheets 4 and 5.

  At the same time, on both the front and back surfaces of the first sheet 4 and the second sheet 5, between the two adjacent laminated parts 4a, 4a and between the laminated parts 5a, 5a, and at both end edges in the sheet width direction, the laminated parts 4a, Non-laminated parts 4b and 5b in which 5a is not formed are formed.

  Under the above configuration, in a state where the wound body 1 is flattened, the stacked portions 4a and 5a extending in a flat plate shape are stacked in the minor axis direction (the vertical direction in FIG. 1) of the wound body 1; At the same time, the non-laminated portions 4b and 5b of the first sheet 4 and the second sheet 5 constitute the curved portion 1b corresponding to the end of the wound body 1 in the major axis direction (left and right direction in FIG. 1). Thereby, in the curved part 1b of the winding body 1, a possibility that the laminated parts 4a and 5a may be crushed and damaged may be reduced.

  The non-laminated parts 4b and 5b between the two adjacent laminated parts 4a and 4a and between the laminated parts 5a and 5a have a length W in the sheet longitudinal direction in consideration of the inner and outer circumference differences of the wound body 1. The first sheet 4 and the second sheet 5 are set in advance so as to gradually increase from the winding start end side (left side in FIG. 2) to the winding end side (right side in FIG. 2) (W1 < W2 <W3 ... <see Wn).

  The length W (W1,..., Wn) of the non-laminated parts 4b, 5b between the laminated parts 4a, 4a and between the laminated parts 5a, 5a is the non-laminated part in the minor axis direction of the wound body 1, respectively. The first sheet 4 and the second sheet 5 and the total thickness of the separation sheets 2 and 3 stacked in the arrangement range of 4b and 5b are set in advance. In particular, in the present embodiment, in order to smoothly perform the winding work described later, the length is set longer than the minimum necessary for manufacturing the wound body 1 with a margin.

  Further, the non-laminated portions 4b and 5b formed at both edge portions in the sheet width direction of the first sheet 4 and the second sheet 5 are formed in the entire sheet longitudinal direction. Thereby, it is comprised so that a malfunction may not generate | occur | produce no matter what position presser claw 20A, 20B mentioned later, feed chuck | zipper 14A * 14B, 15A * 15B, etc. press.

  Next, a manufacturing apparatus for manufacturing the wound body 1 will be described. The winding body manufacturing apparatus in the present embodiment is mainly composed of a winding apparatus and a press apparatus.

  Here, the winding device will be described in detail first. As shown in FIG. 3, the winding device 10 includes a winding unit 11 for winding various sheets 2 to 5, a first sheet supply mechanism 31 that supplies the first sheet 4, and a second sheet 5. A second sheet supply mechanism 41 for supplying and separation sheet supply mechanisms 51 and 61 for supplying the separation sheets 2 and 3 are provided. Various mechanisms in the winding device 10 such as the winding unit 11 and the supply mechanisms 31, 41, 51, 61 are controlled by a control device (not shown).

  The first sheet supply mechanism 31 includes a first sheet raw material 32 formed by winding the first sheet 4 in a roll shape, and a pair of feeds for feeding the first sheet 4 between a pair of nip rollers 71A and 71B described later. The rollers 33 </ b> A and 33 </ b> B and a first sheet cutting cutter 34 for cutting the first sheet 4 are provided.

  The first sheet raw fabric 32 is wound around the shaft roller 32a in a roll shape. The shaft roller 32a is torque-controlled by shaft roller driving means such as a constant torque motor, and is configured to be able to apply a predetermined tension (tension) to the first sheet 4 pulled out from the shaft roller 32a.

  The pair of feeding rollers 33A and 33B is configured to be rotationally controlled by feeding roller driving means such as a servo motor, and is configured to be vertically movable by driving means such as an air cylinder (not shown). Accordingly, the pair of feeding rollers 33A and 33B can be opened and closed between a closed state in which the first sheet 4 is sandwiched and an open state in which the first sheet 4 is opened.

  When the first sheet 4 is sent out between the pair of nip rollers 71A and 71B, the feeding rollers 33A and 33B rotate while the first sheet 4 is sandwiched between the pair of feeding rollers 33A and 33B. While pulling out one sheet 4 from the first sheet material 32, the sheet 4 is fed between the pair of nip rollers 71A and 71B.

  The first sheet cutting cutter 34 includes a pair of blade portions positioned above and below the first sheet 4. The cutting of the first sheet 4 is performed in a state where the first sheet 4 is sandwiched between the pair of feeding rollers 33A and 33B.

  Similar to the first sheet supply mechanism 31, the second sheet supply mechanism 41 includes a second original sheet 42, a shaft roller 42 a, a pair of feeding rollers 43 </ b> A and 43 </ b> B, a second sheet cutting cutter 44, and the like. The various configurations of the second sheet supply mechanism 41, such as the pair of feeding rollers 43A and 43B, are the same as those of the first sheet supply mechanism 31, and thus detailed description thereof is omitted.

  The separation sheet supply mechanisms 51 and 61 include separation sheet original fabrics 52 and 62 in which the separation sheets 2 and 3 are wound in a roll shape, respectively.

  The separation sheet original fabrics 52 and 62 are wound in a roll around the shaft rollers 52a and 62a, respectively. The shaft rollers 52a and 62a are torque-controlled by a shaft roller driving means such as a constant torque motor, and are configured to be able to apply a predetermined tension to the separation sheets 2 and 3 drawn out therefrom.

  The separation sheets 2 and 3 are supplied to the winding unit 11 through a pair of nip rollers 71A and 71B and between 81A and 81B, respectively.

  Of the pair of nip rollers 71A, 71B, 81A, 81B, one of the nip rollers 71A, 81A is rotationally controlled by a motor (not shown) and can be moved up and down by driving means such as an air cylinder (not shown). It has become.

  The other nip rollers 71B and 81B are axially supported so as to be freely rotatable without displacing their positions, and become fixed rollers that rotate following the rotation operation of the nip rollers 71A and 81A, the separation sheets 2 and 3 being conveyed, and the like. ing.

  As a result, the pair of nip rollers 71A and 71B can be opened and closed in a closed state in which the separation sheet 2 and the first sheet 4 are sandwiched and in an open state in which they are opened. Similarly, the pair of nip rollers 81A and 81B can be opened and closed between a closed state in which the separation sheet 3 and the second sheet 5 are sandwiched and an open state in which they are opened.

  Further, various guide rollers (reference numerals omitted) and the like for guiding the various sheets 2 to 5 are provided in the middle of the supply paths of the various sheets 2 to 5.

  Next, the configuration of the winding unit 11 will be described. As shown in FIGS. 3 and 4, the winding unit 11 is supplied from the sheet supply mechanisms 31 and 51 via the winding core 13 for winding the various sheets 2 to 5 and the nip rollers 71A and 71B. The first feed chucks 14A and 14B that grip the first sheet 4 and the separation sheet 2 and feed them to the core 13 side, and the second feed supplied from the respective sheet supply mechanisms 41 and 61 via the nip rollers 81A and 81B. Second feed chucks 15A and 15B for gripping and feeding the sheet 5 and the separation sheet 3 to the core 13 side, separation sheet cutters 16 and 17 for cutting the separation sheets 2 and 3, and the first sheet 4 The first sensor 18 as the first detection means capable of detecting the winding start end side end 4c of the stacked portion 4a and the winding start end side end 5c (see FIG. 2) of the stacked portion 5a on the second sheet 5 are used. A second detection means capable of detection; And a second sensor 19 of Te. Hereinafter, the sheet aggregate in which the first sheet 4 and the separation sheet 2 are overlapped via the nip rollers 71A and 71B is referred to as “first sheet aggregate 2 and 4”, and the second aggregate via the nip rollers 81A and 81B. The sheet assembly in which the sheet 5 and the separation sheet 3 are overlapped is referred to as “second sheet assembly 3, 5”.

  The winding core 13 is configured to be rotatable about its own central axis 13a as a rotation axis. As shown in FIGS. 4 to 7, the core 13 has a substantially long cross-section composed of a pair of arcuate surfaces 13b facing each other with the central axis 13a interposed therebetween and a pair of plane portions 13c facing each other with the central axis 13a interposed therebetween. It is configured in a circular shape.

  Further, the winding part 11 is pressed against the first sheet aggregates 2, 4 or the second sheet aggregates 3, 5 wound around the core 13 corresponding to the two flat surface parts 13 c of the core 13. A pair of first pressing claws 20A and a pair of second pressing claws 20B that rotate integrally with the core 13 are provided.

  Each presser claw 20A, 20B is configured to be displaceable between a closed state in which the first sheet aggregates 2, 4 or the second sheet aggregates 3, 5 are pressed and an open state in which they are opened by driving means (not shown). Has been. However, when the wound body 1 is extracted from the winding core 13 after winding, the holding claws 20 </ b> A and 20 </ b> B are configured to be separated from the winding core 13.

  The pair of first pressing claws 20A and the pair of second pressing claws 20B are respectively edge portions in the sheet width direction of the first sheet assemblies 2, 4 or the second sheet assemblies 3, 5 (non-laminated portions 4b, 5b). (See FIG. 4).

  In the present embodiment, as will be described later, the first pressing claw 20A and the second pressing claw 20B alternately function as the first pressing means or the second pressing means of the present invention.

  The first feed chucks 14A and 14B are configured to be capable of gripping both end edges (non-laminated portions 4b) of the first sheet aggregates 2 and 4 in the sheet width direction. The first feed chucks 14 </ b> A and 14 </ b> B are configured to be movable along a supply path of the first sheet assemblies 2 and 4 to an approach position that approaches the core 13 and a position that is separated from the core 13. Yes. And when sending the 1st sheet aggregates 2 and 4 to the core 13, the state which grasped the sheet width direction both ends edge of the 1st sheet aggregates 2 and 4 synchronizing with rotation operation of the core 13 Then, the first feed chucks 14 </ b> A and 14 </ b> B are moved closer to the core 13. The first feed chucks 14A and 14B constitute first position adjusting means in the present embodiment.

  Similarly, the second feed chucks 15A and 15B are configured to be capable of gripping both end edges (non-stacked portions 5b) of the second sheet aggregates 3 and 5 in the sheet width direction. The second feed chucks 15 </ b> A and 15 </ b> B are configured to be movable along a supply path of the second sheet assemblies 3 and 5 to an approach position that approaches the core 13 and a separation position that is separated from the core 13. Yes. And when sending the 2nd sheet aggregates 3 and 5 to the core 13, the state which grasped the sheet width direction both-ends edge of the 2nd sheet aggregates 3 and 5 synchronizing with rotation operation of the core 13 Then, the second feed chucks 15 </ b> A and 15 </ b> B are moved closer to the core 13. The second feed chucks 15A and 15B constitute second position adjusting means in the present embodiment.

  The separation sheet cutter 16 includes a pair of blade portions. The separation sheet cutter 16 includes a cutting position in which the pair of blade portions are disposed on both sides of the supply path of the first sheet aggregates 2, 4, and a retracted position that is separated from the supply path of the first sheet aggregates 2, 4. It is provided so that movement is possible. When the first feed chucks 14A and 14B move closer to the core 13 in order to supply the first sheet assemblies 2 and 4 to the core 13, the supply path of the first sheet assemblies 2 and 4 is used. The movement of the first feed chucks 14A and 14B is not hindered by being separated from the first feed chucks 14A and 14B. The separation sheet 2 is cut while the separation sheet 2 is held between the first feed chucks 14A and 14B.

  Similarly, the separation sheet cutter 17 includes a pair of blade portions. The separation sheet cutter 17 includes a cutting position where the pair of blade portions are disposed on both sides of the supply path of the second sheet aggregates 3, 5, and a retracted position spaced apart from the supply path of the second sheet aggregates 3, 5. It is provided so that movement is possible. When the second feed chucks 15 </ b> A and 15 </ b> B move closer to the core 13 in order to supply the second sheet aggregates 3 and 5 to the core 13, the supply path of the second sheet aggregates 3 and 5 is provided. The movement of the second feed chucks 15 </ b> A and 15 </ b> B is not hindered by being separated from the second feed chuck 15 </ b> A. The separation sheet 3 is cut while the separation sheet 3 is held between the second feed chucks 15A and 15B.

  The first sensor 18 and the second sensor 19 are arranged so as to face the direction of the central axis 13a of the core 13 at the height position of the central axis 13a of the core 13, respectively. And in the state where a pair of plane parts 13c of core 13 were arranged along the up-and-down direction, the height position of plane part 13c which the 1st sensor 18 opposes is the position of lamination part 4a on the 1st sheet 4 It becomes the 1st standard position K1 which aligns the winding start end side edge part 4c, and the height position of the plane part 13c where the 2nd sensor 19 opposes is the winding start end side edge part 5c of the lamination | stacking part 5a on the 2nd sheet | seat 5. Is the second reference position K2.

  Further, in the vicinity of the winding core 13, a pressing roller (not shown) for suppressing the various sheets 2 to 5 after winding from being scattered, and a winding roller 1 for removing the winding body 1 from the winding core 13. A first removal chuck 23, a second removal chuck 24 (see FIG. 8), and the like are provided.

  Note that the presser roller in this embodiment also has a function of a tape applying means for applying a fixing tape (not shown) for fastening the end portions of the separation sheets 2 and 3. For example, a suction hole communicating with a predetermined suction device is provided on the outer peripheral surface of the press roller, and the fixing tape can be sucked and held by the suction hole. Of course, the present invention is not limited to this, and a configuration in which a tape applying means is provided separately from the pressing roller may be employed.

  Corresponding to the first removal chuck 23 and the second removal chuck 24, grooves 25 and 26 into which the first removal chuck 23 and the second removal chuck 24 enter are formed in the flat surface portion 13 c of the core 13. .

  Next, the structure of the press apparatus for flattening the winding body 1 is demonstrated in detail. As shown in FIGS. 8B and 8C, the press device 90 includes a pair of press plates 91 and 92 for flattening the wound body 1. The pair of press plates 91 and 92 are configured to be movable by a drive mechanism (not shown) between a proximity position approaching each other and a separation position separating from each other.

  Further, the press device 90 is provided with a first positioning member 93 and a second positioning member 94 for positioning the positions of the first removal chuck 23 and the second removal chuck 24, respectively. The first positioning member 93 and the second positioning member 94 have a concave shape so that the first removal chuck 23 and the second removal chuck 24 are fitted therein, respectively.

  Further, an intermediate plate 95 configured to be insertable between the pair of press plates 91 and 92 is provided. The intermediate plate 95 is provided so as to be movable between an insertion position where it is inserted between the press plates 91 and 92 and a retreat position where it is retracted from between the press plates 91 and 92.

  Next, the winding procedure of the wound body 1 using the winding device 10 will be described in detail. FIG. 3 shows a state where one winding process is completed. In this state, both edge portions in the sheet width direction near the leading ends of the first sheet aggregates 2 and 4 supplied from the nip rollers 71A and 71B are gripped by the pair of first feed chucks 14A and 14B at the initial position. It is in the state. Similarly, both edge portions in the sheet width direction near the leading ends of the second sheet aggregates 3 and 5 supplied from the nip rollers 81A and 81B are gripped by the pair of second feed chucks 15A and 15B at the initial position. It is in a state. Further, the core 13 is stopped in an initial state in which the pair of flat portions 13c are arranged along the vertical direction.

  In this state, when a winding process of a new winding body 1 is started, first, the first feed chucks 14A and 14B and the second feed chucks 15A and 15B are first fed to the first sheet assemblies 2 and 4 and the second sheet, respectively. It moves toward the core 13 while holding the aggregates 3 and 5.

  In this state, the nip rollers 71A and 71B and the nip rollers 81A and 81B are closed. As a result, the first sheet 4 and the separation sheet 2 respectively supplied from the sheet supply mechanisms 31 and 51 are overlapped by the nip rollers 71A and 71B to become the first sheet aggregates 2 and 4 toward the core 13. It will be pulled out. Similarly, the second sheet 5 and the separation sheet 3 respectively supplied from the sheet supply mechanisms 41 and 61 are overlapped by the nip rollers 81A and 81B to become the second sheet aggregates 3 and 5 toward the core 13. It will be pulled out.

  When the leading end portions of the first sheet assemblies 2 and 4 reach the flat surface portion 13c of the core 13, the first sensor 18 detects the winding start end side end portion 4c of the laminated portion 4a on the first sheet 4. Is called. Then, based on the detection result of the first sensor 18, when the winding start end side end 4c of the laminated portion 4a on the first sheet 4 reaches the first reference position K1, the first feed chucks 14A and 14B are stopped. Let At the same time, both ends of the first sheet aggregates 2 and 4 in the sheet width direction are pressed by the pair of first pressing claws 20A, and the first sheet aggregates 2 and 4 are fixed to the core 13 (see FIG. 5). .

  Similarly, when the leading end portions of the second sheet aggregates 3 and 5 reach the flat surface portion 13c of the winding core 13, the second sensor 19 causes the winding start end side end portion 5c of the laminated portion 5a on the second sheet 5 to move. Detection is performed. Then, based on the detection result of the second sensor 19, the second feed chucks 15A and 15B are stopped when the winding start end side end 5c of the laminated portion 5a on the second sheet 5 reaches the second reference position K2. Let At the same time, both ends of the sheet width direction of the second sheet assemblies 3 and 5 are pressed by the pair of first pressing claws 20A, and the second sheet assemblies 3 and 5 are fixed to the winding core 13 (see FIG. 5). .

  When the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5 are fixed as described above, the nip rollers 71A and 71B and the nip rollers 81A and 81B are opened, and the core 13 is shown in FIG. Rotate counterclockwise and start winding. In synchronization with this, the first feed chucks 14A and 14B and the second feed chucks 15A and 15B grip the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5, respectively. Move towards

  Then, when the core 13 is rotated 180 ° from the initial state and the first sheet assemblies 2, 4 and the second sheet assemblies 3, 5 are wound by a predetermined length, the core 13 and the core 13 are synchronized with this. The moving first feed chucks 14A and 14B and second feed chucks 15A and 15B are temporarily stopped. Here, the winding core 13 is in a state in which the pair of flat surface portions 13c are arranged along the vertical direction, as in the initial state before the winding is started.

  In this state, as described above, the length of the non-laminated parts 4b and 5b between the laminated parts 4a and 4a and between the laminated parts 5a and 5a is set with a margin in advance. The winding start end side end 4c of the stacked portion 4a does not reach the first reference position K1, and the winding start end side end 5c of the stacked portion 5a on the second sheet 5 does not reach the second reference position K2. (See FIG. 6).

  From here, the first feed chucks 14A and 14B holding the first sheet aggregates 2 and 4 are further moved toward the winding core 13, and the first sensor 18 is used to move the stacking portion 4a on the first sheet 4 to the edge. The rotation start side end 4c is detected. Then, based on the detection result of the first sensor 18, when the winding start end side end 4c of the laminated portion 4a on the first sheet 4 reaches the first reference position K1, the first feed chucks 14A and 14B are stopped. Let At the same time, the edge portions in the sheet width direction of the first sheet assemblies 2 and 4 are pressed by the pair of second pressing claws 20B (see FIG. 7). At this stage, the first sheet assemblies 2 and 4 are pressed by both the pair of first pressing claws 20A and the pair of second pressing claws 20B.

  Similarly, from the state where the winding start end side end portion 5c of the laminated portion 5a on the second sheet 5 does not reach the second reference position K2, the second feed chuck 15A that further grips the second sheet aggregates 3, 5. -While moving 15B to the core 13, the 2nd sensor 19 detects the winding start end side edge part 5c of the lamination | stacking part 5a on the 2nd sheet | seat 5. FIG. Then, based on the detection result of the second sensor 19, the second feed chucks 15A and 15B are stopped when the winding start end side end 5c of the laminated portion 5a on the second sheet 5 reaches the second reference position K2. Let At the same time, the edge portions in the sheet width direction of the second sheet aggregates 3 and 5 are pressed by the pair of second pressing claws 20B (see FIG. 7). At this stage, the second sheet assemblies 3 and 5 are pressed by both the pair of first pressing claws 20A and the pair of second pressing claws 20B.

  When the first sheet assemblies 2 and 4 and the second sheet assemblies 3 and 5 are positioned and fixed, the first feed chucks 14A and 14B and the second feed chucks 15A and 15B are respectively connected to the first sheet assemblies 2 and 4. And the 2nd sheet aggregates 3 and 5 are opened, and it returns to an initial position. Then, again, the first feed chucks 14A and 14B grip the edge portions in the sheet width direction of the first sheet assemblies 2 and 4, and the second feed chucks 15A and 15B are the sheets of the second sheet assemblies 3 and 5. Grasp both edges in the width direction.

  Thereafter, the winding core 13 rotates and winding is resumed. In synchronization with this, the first feed chucks 14A and 14B and the second feed chucks 15A and 15B again hold the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5, respectively. Move towards. Here, at each flat surface portion 13c of the winding core 13, the first pressing claws 20A holding the first sheet aggregates 2, 4 or the second sheet aggregates 3, 5 are separated, and the first sheet aggregate 2 is separated. , 4 and the second sheet aggregates 3 and 5 are pressed by only the second pressing claw 20B.

  Thereafter, the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5 are alternately pressed by the first pressing claws 20A and the second pressing claws 20B, and the above-described process is repeated, whereby the core 13, the first sheet aggregates 2, 4 and the second sheet aggregates 3, 5 are wound.

  Here, focusing on only the pressing operation of the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5 by the first pressing claws 20A and the second pressing claws 20B, the operation will be described. First, as described above, the second sheet assembly 3 wound and aligned on the first sheet assemblies 2, 4 or the second sheet assemblies 3, 5 pressed by the first pressing claws 20A. , 5 or the first sheet aggregates 2, 4 are pressed by the second pressing claws 20B. Subsequently, in this state, the core 13 is rotated and the pressing by the first pressing claw 20A is released. Then, after the winding core 13 is rotated by 180 ° and the first sheet aggregates 2 and 4 or the second sheet aggregates 3 and 5 are wound up by a predetermined length, the second sheet aggregate pressed by the second pressing claws 20B. 3, 5 or the first sheet aggregates 2, 4 wound on the first sheet aggregates 2, 4 or the aligned second sheet aggregates 3, 5 are pressed by the first pressing claws 20 </ b> A. . By repeating such an operation, the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5 are alternately pressed by the first pressing claws 20A and the second pressing claws 20B, while the first sheet aggregates are pressed. The bodies 2 and 4 and the second sheet aggregates 3 and 5 can be wound.

  Then, when winding of one wound body 1 is almost completed by the winding core 13, the winding core 13 is temporarily stopped. Subsequently, the pair of feeding rollers 33 </ b> A and 33 </ b> B is closed, and the first sheet 4 is gripped and then cut by the first sheet cutting cutter 34. Similarly, the pair of feeding rollers 43 </ b> A and 43 </ b> B is closed, and the second sheet 5 is gripped and then cut by the second sheet cutting cutter 44.

  When the cutting of the first sheet 4 and the second sheet 5 is completed, the winding core 13 rotates by a predetermined amount, and the terminal portions (unwinding portions) of the first sheet aggregates 2, 4 and the second sheet aggregates 3, 5 are removed. Wind up.

  When the winding of the end portions of the first sheet 4 and the second sheet 5 is completed, the first feed chucks 14A and 14B and the second feed chucks 15A and 15B are opened, and the separation sheets 2 and 3 are not cut. The feeding rollers 33A and 33B and the feeding rollers 43A and 43B are driven at a predetermined timing to feed out the first sheet 4 and the second sheet 5.

  When the leading edge of the first sheet 4 reaches between the nip rollers 71A and 71B, the nip rollers 71A and 71B are closed and the feeding rollers 33A and 33B are opened and the first sheet 4 is opened. Similarly, when the leading edge of the second sheet 5 reaches between the nip rollers 81A and 81B, the second nip roller sheet 5 is closed, the feeding rollers 43A and 43B are opened, and the second sheet 5 is opened.

  When the winding of the separation sheets 2 and 3 by the winding core 13 is continued in this state, the first sheet 4 and the second sheet 5 are pulled to the separation sheets 2 and 3 by the frictional force between the separation sheets 2 and 3, respectively. In such a manner, it is pulled toward the winding core 13.

  At the same time as the winding of the end portions of the separation sheets 2 and 3 by the winding core 13, the leading ends of the first sheet 4 and the second sheet 5 are moved to the first feed chucks 14A and 14B and the second feed chucks 15A and 15A, respectively. The initial position of 15B is reached.

  When the leading ends of the first sheet 4 and the second sheet 5 reach the initial positions of the first feed chucks 14A and 14B and the second feed chucks 15A and 15B, respectively, the winding core 13 is temporarily stopped. Here, the first feed chucks 14A and 14B grip the first sheet aggregates 2 and 4 related to the winding of the next winding body 1, and the second feeding chucks 15A and 15B are used for the next winding body 1. The second sheet aggregates 3 and 5 related to the winding are gripped.

  On the other hand, in the winding core 13, when the winding of the end portions of the separation sheets 2 and 3 is completed, the pressing roller approaches the winding core 13 and presses the end portions of the separation sheets 2 and 3.

  In this state, the separation sheet cutters 16 and 17 are operated. Thereby, the separation sheet 2 is cut between the winding core 13 and the first feed chucks 14A and 14B, and the separation sheet 3 is cut between the winding core 13 and the second feed chucks 15A and 15B.

  After the cutting, the core 13 is rotated while the terminal portions of the separation sheets 2 and 3 are pressed together with the fixing tape sucked and held by the pressing roller. As a result, the presser roller is driven, and the end portions of the separation sheets 2 and 3 are completely wound up without being separated, and a fixing tape is attached to the end portions of the separation sheets 2 and 3 to be wound. . Thereby, the winding operation | work of the various sheets 2-5 is completed, and the winding body 1 is completed.

  Next, a procedure for pressing the wound body 1 after winding into a flat shape using the pressing device 90 will be described.

  When the winding of the wound body 1 by the winding device 10 is finished, the first removal chuck 23 and the second removal chuck 24 enter the grooves 25 and 26 of the core 13 as shown in FIG. Then, the wound body 1 is gripped. In this state, the first pressing claw 20 </ b> A and the second pressing claw 20 </ b> B are separated from the core 13. Thereafter, the first removal chuck 23 and the second removal chuck 24 are moved to remove the wound body 1 from the core 13.

  Subsequently, the first removal chuck 23 and the second removal chuck 24 are moved to the press device 90, and the wound body 1 is disposed between the press plates 91 and 92. Then, the relative positional relationship between the two removal chucks 23 and 24 is changed, and both the removal chucks 23 and 24 are fitted into the first positioning member 73 or the second positioning member 74, respectively, so that the winding body 1 is positioned and fixed. Thereafter, the intermediate plate 95 is inserted into the center of the wound body 1.

  In this state, as shown in FIG. 8B, the press plates 91 and 92 are brought close to each other, and temporary pressing is performed. Thereby, the position of the non-lamination part 4b, 5b between the two lamination | stacking parts 4a and 4a adjacent in the sheet | seat longitudinal direction of the 1st sheet | seat 4 and the 2nd sheet | seat 5 and lamination | stacking part 5a, 5a turns into a crease | fold, 1 is crushed. That is, the positions of the non-laminated parts 4 b and 5 b are defined as the curved part 1 b of the wound body 1.

  Thereafter, in a state where the press plates 91 and 92 are once separated, the gripping by the two detaching chucks 23 and 24 is released, and the intermediate plate 95 is retracted from between the press plates 91 and 92. Subsequently, as shown in FIG. 8C, the press plates 91 and 92 are brought close to each other to perform the main press. Thereby, the wound body 1 is completely crushed into a flat shape, and the pressing process of the wound body 1 is completed.

  As described in detail above, the lengths of the non-laminate portions 4b and 5b on the first sheet 4 and the second sheet 5 are set in advance to a dimension having a margin, and the first sheet 4 and the second sheet 5 are Every time a predetermined length of winding is performed, the first sensor 18 and the second sensor 19 detect the winding start side end portions 4c and 5c of the stacked portions 4a and 5a on the first sheet 4 and the second sheet 5, and the first feed The first sheet is positioned while the winding start end side ends 4c and 5c of the laminated portions 4a and 5a are aligned with the first reference position K1 and the second reference position K2 by the chucks 14A and 14B and the second feed chucks 15A and 15B, respectively. 4 and the second sheet 5 are wound. Thereby, the position of the several laminated parts 4a and 5a can be accurately aligned, without being influenced by the manufacturing error etc. of each laminated part 4a and 5a on the 1st sheet | seat 4 and the 2nd sheet | seat 5. FIG. As a result, the quality improvement of the wound body 1 arrange | positioned so that the some laminated parts 4a and 5a may be piled up can be aimed at.

  In the present embodiment, the first presser claw 20A, the second presser claw 20B, the sensors 18, 19, the reference positions K1, K2, and the feed chucks 14A, 14B, 15A, 15B are respectively in the rotational direction of the core 13. Are provided at intervals of 180 °. That is, they are arranged so as to be point-symmetric with respect to the central axis 13a of the winding core 13. Thereby, the alignment of the first sheet 4 and the alignment of the second sheet 5 can be performed simultaneously (during one stop). As a result, the number of times of stopping the winding core 13 for aligning the first sheet 4 and the second sheet 5 can be reduced, and the speed of the winding device 10 can be increased, thereby improving productivity.

  Furthermore, in this embodiment, the core 13 has a substantially oval cross-sectional shape including a pair of arcuate surfaces 13b that face each other with the center axis 13a interposed therebetween and a pair of flat portions 13c that face each other with the center axis 13a interposed therebetween. It is configured. Thereby, in manufacturing the same winding body 1, compared with the case where the 1st sheet | seat 4 and the 2nd sheet | seat 5 are wound using a flat core, for example, the rotation radius of a core can be made smaller. Therefore, the winding of the first sheet 4 and the second sheet 5 during winding can be suppressed and the winding device 10 can be made compact.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the said embodiment, the 1st sheet | seat 4 and the 2nd sheet | seat 5 were employ | adopted as a strip | belt-shaped sheet | seat wound by the winding apparatus 10. FIG. Here, for example, the first sheet 4 is a positive electrode sheet in which a positive electrode active material is applied as a laminated portion 4a on a metal sheet such as an aluminum foil, and the second sheet 5 is laminated on a metal sheet such as a copper foil. Alternatively, the negative electrode sheet coated with the negative electrode active material may be used, and the separation sheets 2 and 3 may be separators made of an insulating material. Thereby, the winding body for electrical storage devices, such as a secondary battery and a capacitor, can be manufactured.

  (B) In the said embodiment, although the winding body 1 wound so that the 1st sheet | seat 4 and the 2nd sheet | seat 5 overlap may be manufactured, not only this but a lamination | stacking part forms intermittently. It is good also as a structure which winds one sheet | seat made and manufactures a winding body.

  (C) The structure of the 1st sheet | seat 4 and the 2nd sheet | seat 5 is not limited to the said embodiment, You may employ | adopt another structure.

  For example, in the above-described embodiment, the first sheet 4 and the second sheet 5 are configured such that the laminated portions 4a and 5a are formed on both front and back surfaces. It is good also as a structure which winds what laminated | stacked part 4a, 5a was formed in only one side of 4 and the 2nd sheet | seat 5.

  Moreover, in the said embodiment, although each lamination | stacking part 4a, 5a of the 1st sheet | seat 4 and the 2nd sheet | seat 5 is comprised by planar view square shape, it is not restricted to this, for example, planar view rectangular shape is natural. You may comprise in planar view circular shape and planar view triangular shape.

  Moreover, if the laminated | stacked part shape of a 1st sheet | seat and a 2nd sheet | seat is the same shape within the same sheet | seat, it does not need to be the same.

  (D) The shape of the winding core 13 (the wound shape of the wound body 1) is not limited to the above-described embodiment. For example, a cross-sectional non-circular shape such as a cross-sectional elliptical shape or a cross-sectional rhombus shape, of course, It is good also as a structure which obtains the flat winding body 1 by pressing the winding body 1 wound by circular shape.

  However, in order to stably hold the first sheet 4 and the second sheet 5 and to suppress the positional deviation of the stacked portions 4a and 5a, a substantially flat plane is formed on the peripheral surface portion of the core as in the above embodiment. It is preferable to have a configuration in which the first sheet 4 and the second sheet 5 are pressed in the plane portion, and the stacked portions 4a and 5a are aligned.

  In addition, the peripheral surface portion of the core is provided with a concave portion that is concave toward at least the radial rotation axis side of the core, and is wound so as to be convex outward in the radial direction of the core. The first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5 are provided with pressing means for pressing the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5 toward the concave portion, and the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5 have a predetermined length. You may employ | adopt the structure which dents the 1st sheet aggregates 2 and 4 and the 2nd sheet aggregates 3 and 5 wound around the said core toward the said recessed part whenever it winds up.

  More specifically, for example, as shown in FIG. 9, a winding composed of a pair of arc-shaped recesses 97b facing each other with the center axis 97a interposed therebetween and a pair of flat portions 97c facing each other with the center axis 97a interposed therebetween. A wick 97 may be employed.

  According to such a configuration, as shown in FIG. 9A, the core 97 is rotated 180 ° from the initial state, and the first sheet aggregates 2, 4 and the second sheet aggregates 3, 5 are connected to the core 97. After winding a predetermined length so as to be convex outward in the radial direction, the first sheet aggregates 2, 4 and the second sheet aggregates 3, 5 are aligned as in the above embodiment.

  Subsequently, as shown in FIG. 9B, the pressing member 98 as the pressing means is driven, and the wound first sheet aggregates 2, 4 and second sheet aggregates 3, 5 are along the recess 97b. Indent.

  Thereafter, as shown in FIG. 9C, the pressing member 98 is separated, the core 97 is rotated again by 180 °, and the first sheet assemblies 2, 4 and the second sheet assemblies 3, 5 are wound around the core. A predetermined length is wound so as to protrude outward in the radial direction of 97. Thereafter, the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5 are wound around the core 97 by repeatedly performing the above-described operation.

  In the configuration in which the core 97 is not provided with the concave portion 97b, and the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5 are wound so as to protrude outward from the core 97. When aligning the stacked portions 4a and 5a, the outer first sheet aggregates 2 and 4 or the second sheet aggregates 3 and 5 to be aligned are wound on the inner first There is a possibility that the sheet aggregates 2 and 4 or the second sheet aggregates 3 and 5 are obstructed and cannot be aligned properly and smoothly. For example, the feed chucks 14A and 14B are caused by friction between the inner first sheet assemblies 2, 4 or the second sheet assemblies 3, 5 and the outer first sheet assemblies 2, 4 or the second sheet assemblies 3, 5. , 15A and 15B may be overloaded. Further, the sheet length of the inner first sheet aggregates 2, 4 or the second sheet aggregates 3, 5 rather than the outer first sheet aggregates 2, 4 or the second sheet aggregates 3, 5 due to manufacturing errors or the like. Is longer and is wound around the bulge, the outer first sheet aggregates 2 and 4 or the second sheet aggregates 3 and 5 must be wound more tightly. There is a possibility that the winding start end side ends 4c and 5c do not reach the reference positions K1 and K2 and cannot be aligned.

  On the other hand, by providing the concave portion 97b and the like, at the portion where the concave portion 97b is provided, the core 97 is in a state where the inner first sheet aggregates 2, 4 or the second sheet aggregates 3, 5 are depressed. Since it is wound, the contact area with the first sheet aggregates 2, 4 or the second sheet aggregates 3, 5 wound around the outside is reduced, and the outer first sheet aggregates 2, 4, or The influence on the two-sheet aggregates 3 and 5 can be suppressed. As a result, it is possible to facilitate the alignment work of the first sheet aggregates 2 and 4 or the second sheet aggregates 3 and 5 and to improve the positioning accuracy. As a result, the quality of the wound body can be improved.

  (E) In the above embodiment, the first reference position K1 (position of the first sensor 18) for aligning the winding start end side end 4c of the laminated portion 4a on the first sheet 4, and the second sheet 5 Both the second reference position K2 (second sensor 19) for aligning the winding start end side end portion 5c of the upper laminated portion 5a is the height position of the central axis 13a of the core 13 (the plane portion of the core 13). 13c)). For example, the first reference position K1 (arrangement position of the first sensor 18) and the second reference position K2 (arrangement position of the second sensor 19) are respectively wound on the flat surface portion 13c of the winding core 13. It is good also as a structure set corresponding to the height position different from the height position of the center axis | shaft 13a of the core 13. FIG. Further, the first reference position K1 (position of the first sensor 18) and the second reference position K2 (position of the second sensor 19) are set corresponding to the arc surface 13b of the core 13. Also good. However, in order to suppress misalignment of the stacked portions 4a and 5a, it is preferable that the winding start end side end portions 4c and 5c of the stacked portions 4a and 5a are aligned on the flat surface portion 13c of the core 13.

  (F) In the above embodiment, the first pressing claws 20 </ b> A and the second pressing claws 20 </ b> B press the first sheet aggregates 2, 4 or the second sheet aggregates 3, 5 on the flat portion 13 c of the core 13. It has a configuration. Not limited to this, on the arc surface 13b of the core 13, the first pressing claw 20A and the second pressing claw 20B may be configured to press the first sheet aggregates 2 and 4 or the second sheet aggregates 3 and 5. . However, in order to stably hold the first sheet aggregates 2, 4 and the second sheet aggregates 3, 5, the first sheet aggregates 2, 4 or the second sheet aggregates on the flat portion 13 c of the core 13. It is preferable to have a configuration that holds 3 and 5.

  (G) In the above-described embodiment, the wound body 1 wound around the elliptical core 13 is pressed in two stages to form a flat wound body 1. For example, the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5 are wound around a flat core, and the positions of the non-laminated portions 4b and 5b are previously curved portions of the wound body. It is good also as a structure which obtains a flat winding body by pressing only once so that it may be located in. In addition, the present invention may be applied when winding a wound body that is not pressed (not flat).

  (H) In the above-described embodiment, the first sensor 18 and the second sensor 19 are each the winding start end side end 4c of the stacked portion 4a on the first sheet 4 or the winding start end of the stacked portion 5a on the second sheet 5. The side end 5c is detected, and positioning is performed based on this.

  Not only this but the 1st sensor 18 and the 2nd sensor 19 are winding end side end 4d of lamination part 4a on the 1st sheet 4, or winding termination side end part of lamination part 5a on the 2nd sheet 5 It is good also as a structure which detects 5d and performs positioning based on this.

  (I) In the above embodiment, the first pressing claws 20 </ b> A and the second pressing claws 20 </ b> B rotate integrally with the core 13, and hold the first sheet aggregates 2, 4 and the second sheet aggregates 3, 5 alternately. However, the winding is performed.

  For example, only the first pressing claw 20 </ b> A may rotate integrally with the core 13, and the second pressing claw 20 </ b> B may not rotate integrally with the winding core 13. Under such a configuration, for example, the second sheet assembly wound and aligned on the first sheet assemblies 2, 4 or the second sheet assemblies 3, 5 pressed by the first pressing claws 20A. After the bodies 3, 5 or the first sheet aggregates 2, 4 are pressed by the second pressing claws 20B, the second sheet aggregates 3, 5 or the first sheet aggregates 2, 4 are pressed by the first pressing claws 20A. In addition, the second pressing claw 20B can be separated, and then the core 13 can be driven again.

  (J) In the above embodiment, the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5 are wound around the core 13 by a predetermined length, and the core 13 and the first feed that moves in synchronization therewith. After the chucks 14A and 14B and the second feed chucks 15A and 15B are temporarily stopped, the first feed chucks 14A and 14B and the second feed chucks 15A and 15B are respectively connected to the first sheet assemblies 2 and 4 and the second sheet assembly. In the state where 3 and 5 are gripped, the winding start end side end portions 4c and 5c of the laminated portions 4a and 5a are moved further toward the core 13 from the position where they do not reach the reference positions K1 and K2. The winding start end side end portions 4c and 5c of the stacked portions 4a and 5a are aligned.

  For example, the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5 are wound around the winding core 13 for a predetermined length to temporarily stop the winding core 13, while the first feed chuck 14 </ b> A · 14B and the second feed chucks 15A and 15B are further moved so that the first sheet aggregates 2 and 4 and the second sheet aggregates 3 and 5 are respectively wound around the winding start ends of the stacked portions 4a and 5a. After the end portions 4c and 5c are moved to positions exceeding the reference positions K1 and K2, they are temporarily stopped, and then the first feed chucks 14A and 14B and the second feed chucks 15A and 15B are in the direction opposite to the core 13. The winding start end side end portions 4c, 5c of the stacked portions 4a, 5a may be aligned with the reference positions K1, K2 by moving to.

  (K) In the above embodiment, the first pressing claw 20A, the second pressing claw 20B, the sensors 18 and 19, the reference positions K1 and K2, and the feed chucks 14A and 14B, 15A and 15B are respectively rotated by the winding core 13. It is provided at intervals of 180 ° in the direction. However, the present invention is not limited to this, and for example, a configuration in which these are provided at intervals of 90 ° in the rotation direction of the core 13 may be employed. However, in order to reduce the number of times of stopping the winding core 13 for the alignment of the first sheet 4 and the second sheet 5, it is preferable that the interval is 180 ° as in the above embodiment.

  (L) The structure of the supply mechanism of the various sheets 2 to 5 is not limited to the above embodiment. For example, in the above-described embodiment, the various raw sheets 32, 42, 52, 62 are wound around the shaft rollers 32a, 42, 52a, 62a in a roll shape, and the shaft roller 32a is a shaft roller such as a constant torque motor. Torque is controlled by the driving means, and a predetermined tension (tension) is applied to the various sheets 2 to 5 drawn from the driving means. Not limited to this, for example, a shaft roller 32a or the like on which various sheet raw fabrics 32 or the like are wound in a roll shape is supported so as to be freely rotatable, and a predetermined tension applying means is provided on the downstream side of the shaft roller 32a or the like. It is good also as a structure provided. As an example of the tension applying unit, a configuration including a pair of rollers and a step roller provided so as to be displaceable in the vertical direction between the two rollers is given as an example.

  (M) In the above embodiment, when the winding of the end portions of the first sheet 4 and the second sheet 5 is completed, the feeding rollers 33A and 33B and the feeding rollers 43A and 43B are driven at a predetermined timing, and the first sheet 4 And the 2nd sheet | seat 5 is paid out. At the same time as the winding of the end portions of the separation sheets 2 and 3 by the winding core 13, the leading ends of the first sheet 4 and the second sheet 5 are moved to the first feed chucks 14A and 14B and the second feed chucks 15A and 15B, respectively. The initial state is reached. Instead of the feeding roller as the feeding means, a feeding chuck system is used, and the first sheet 4 and the second sheet 5 are moved in synchronization with the feeding movement of the first feeding chucks 14A and 14B and the second feeding chucks 15A and 15B. It is good also as a structure to send.

  DESCRIPTION OF SYMBOLS 1 ... Winding body, 2, 3 ... Separation sheet, 4 ... 1st sheet, 5 ... 2nd sheet, 4a, 5a ... Lamination | stacking part, 4b, 5b ... Non-lamination part, 4c, 5c ... Winding start end side edge part DESCRIPTION OF SYMBOLS 10 ... Winding device, 11 ... Winding part, 13 ... Core, 13b ... Arc surface, 13c ... Flat part, 14A * 14B ... 1st feed chuck, 15A * 15B ... 2nd feed chuck, 18 ... 1st Sensor: 19 ... 2nd sensor, 20A ... 1st presser claw, 20B ... 2nd presser claw, 23 ... 1st removal chuck | zipper, 24 ... 2nd removal chuck | zipper, K1 ... 1st reference position, K2 ... 2nd reference position.

Claims (7)

A winding device for winding a belt-like sheet in which a plurality of laminated portions are formed intermittently along a sheet longitudinal direction, and obtaining a wound body arranged so that the plurality of laminated portions are stacked. ,
In the sheet, the length of the non-laminated portion between two laminated portions adjacent in the sheet longitudinal direction is configured to be gradually increased from the winding start end side to the winding end side in the sheet longitudinal direction. With
The length of the non-laminated part is longer than at least the minimum length required for winding the sheet, respectively, under a configuration set with a margin,
A rotatable winding core;
A first pressing means provided so as to be rotatable integrally with the core while pressing the sheet wound around the core;
Detection means capable of detecting a sheet longitudinal direction end position of a laminated portion on the sheet wound on the core;
It is configured to be movable at least along the sheet winding direction while gripping the sheet wound on the winding core, and based on the detection result of the detection means, the sheet longitudinal direction end of the laminated portion on the sheet Position adjusting means capable of aligning the position with a preset reference position;
By providing second pressing means for pressing the sheet in the aligned state,
The winding device is characterized in that the alignment is performed every time the sheet is wound by a predetermined length, and the sheet longitudinal direction end positions of the plurality of laminated portions formed on the sheet are aligned. A belt-shaped first sheet and a second sheet, each having a predetermined laminated portion formed intermittently along the longitudinal direction of the sheet, are wound with the strip-shaped separation sheets being overlapped, and the first sheet and the second sheet are stacked. A winding device for obtaining a wound body arranged so that the parts are alternately stacked,
In the first sheet and the second sheet, the length of the non-laminated portion between the two laminated portions adjacent to each other in the sheet longitudinal direction is gradually increased from the winding start end side to the winding end side in the sheet longitudinal direction. Configured to
Under the configuration in which the length of the non-laminated portion is longer than the minimum necessary length for winding the first sheet and the second sheet, respectively, with a margin,
A rotatable winding core;
First pressers provided at two different locations in the direction of rotation of the core so as to be able to rotate integrally with the core while pressing the first sheet or the second sheet wound around the core. Means,
First detection means capable of detecting a sheet longitudinal direction end position of a laminated portion on the first sheet wound on the winding core;
A second detection means capable of detecting a sheet longitudinal direction end position of the laminated portion on the second sheet wound on the core;
The gripper is configured to be movable at least along the sheet winding direction while gripping the first sheet wound on the winding core, and based on the detection result of the first detection means, the stacked portion on the first sheet First position adjustment means capable of aligning the sheet longitudinal end position with a preset first reference position;
The gripper is configured to be movable at least along the sheet winding direction while gripping the second sheet wound on the core, and based on the detection result of the second detection unit, the stacked portion on the second sheet Second position adjusting means capable of aligning the sheet longitudinal end position with a preset second reference position;
By providing second pressing means provided at two different locations in the rotational direction of the core so that the first sheet or the second sheet in the aligned state can be pressed,
Each time the first sheet and the second sheet are wound by a predetermined length, the alignment is performed, and the sheet longitudinal direction end positions of the plurality of stacked portions formed on the first sheet and the second sheet are aligned respectively. A winding device characterized by going. The two first pressing means;
The first detection means and the second detection means;
The first position adjusting means and the second position adjusting means;
The two second pressing means;
The winding device according to claim 2, wherein the first reference position and the second reference position are provided at intervals of 180 ° in the rotation direction of the core.   The winding device according to any one of claims 1 to 3, wherein the second pressing means is rotatably provided integrally with the core. In the peripheral surface portion of the core, comprising a flat portion formed in a substantially flat shape,
5. The winding device according to claim 1, wherein the sheet is pressed by the first pressing unit and the second pressing unit in the flat portion.   The winding device according to claim 5, wherein the reference position for aligning the sheet longitudinal direction end position of the laminated portion is set corresponding to the planar portion. In the peripheral surface portion of the core, at least a concave portion that is concave toward the radial rotation axis side of the core is provided,
A pressing means for pressing the sheet wound to be convex toward the outer side in the radial direction of the core with respect to the core;
The winding device according to any one of claims 1 to 6, wherein each time the sheet is wound by a predetermined length, the sheet wound on the core is recessed toward the recess.

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