JP2014135260A - Winding core and wound unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding core around which a separator, or the like, can be wound without deforming a wound element into the shape of bamboo shoot by the winding core, while stabilizing the positioning of the separator when manufacturing the wound element and pulling out the winding core from the wound element.SOLUTION: The winding core 10 is configured to include a fixing member 26, a first wound member 30, a second wound member 34, a first clamping member 36, a second clamping member 38, and a coupling slide member 40. A wound unit 12 is configured to include a winding core 10, a front panel 13, an engagement pin 64, a rotary drive mechanism 66 for rotating the winding core 10, an engagement pin movement mechanism 68 for moving the engagement pin 64 in the direction of the central axis of rotation C, and a pull-out mechanism 70 for pulling out the winding core 10 from a wound element 24 manufactured.

Description

  The present invention relates to a winding core for manufacturing a winding element for forming a battery or a capacitor, and a winding unit using the winding core.

  Conventionally, a strip-shaped positive electrode, negative electrode and separator are wound around a core, and the wound winding element is immersed in an electrolytic solution so that the electrolytic solution is immersed between the separator and the positive and negative electrodes. Batteries have been manufactured. In FIG. 12, reference numeral 120 denotes a winding device that winds the positive electrode 100, the first separator 102, the negative electrode 104, and the second separator 106 sent from the original fabrics 112, 114, 116, and 118 to the core 108. It is. As shown in the figure, the winding device 120 winds the positive electrode 100 and the like at the position S1, and attaches the tape 124 at the position S2 to produce the winding element 109, and the winding element at the position S3. 109 can be taken out. Various winding devices have been invented and filed by the present applicant (see Patent Documents 1 to 8).

  As shown in FIG. 13A, the winding core 108 has a fixed portion 111 fixed to a rotating jig (not shown), and an outer peripheral surface that winds the belt-like positive electrode 100, separator 102, negative electrode 104, and separator 106. The winding part 122 which has 121, and the clearance gap 113 which inserts the vicinity of the front-end | tip of the separators 102 and 106 are comprised. The core 108 is fixed to a fixing jig, and the vicinity of the tips of the separators 102 and 106 is inserted into the gap 113 and manually rotated a plurality of times, whereby the separator 102 and the like are wound, whereby the separator 102 and the like are A frictional force is applied to the. Next, as shown in FIG. 13B, the positive electrode 100 is laminated on the separator 102, the negative electrode 104 is laminated between the separators 102 and 106, and the winding element 109 is manufactured by rotating the rotary jig. The

  The winding core 108 is extracted from the winding element 109 after the positive electrode 100, the separator 102, the negative electrode 104, and the separator 106 are wound to manufacture the winding element 109. However, since the outer peripheral surface 120 of the winding portion 122 is in contact with the inner peripheral surface 115 of the winding element 109 when the winding core 108 is extracted from the winding element 109, the outer peripheral surface 121, the inner peripheral surface 115, Due to this frictional force, the winding core 108 may be deformed by pulling out the center side of the winding element 109 like a bowl as shown in FIG. For this reason, an operation for correcting the shape of the winding element 109 may be required. Further, since the vicinity of the tips of the separators 102 and 106 is inserted into the gap 113 and the separator 102 and the like are wound, positioning in the vicinity of the tips of the separators 102 and 106 is unstable.

JP 2004-127860 A JP 2009-043540 A JP 2009-093901 A JP 2009-256022 A JP 2009-272245 A JP 2011-161557 A JP 2011-184132 A International Publication No. 2009/019781

  An object of the present invention is to produce a wound element and when the core is pulled out of the wound element, the core does not deform the wound element into a bowl shape, and the separator is stably positioned. It is to provide a winding core and a winding unit that can wind a separator or the like.

The winding core of the present invention has a rotation center axis, and is attached to a rotation jig of a winding device and rotated around the rotation center axis, whereby a band-shaped positive electrode, a band-shaped first separator, and a band-shaped negative electrode. A winding core for manufacturing a wound element by winding an electrode and a strip-shaped second separator,
A first fixing member fixed to the rotating jig, extending in parallel with the rotation center axis, having a front end and a rear end, the rear end being fixed to the fixing member, and being parallel to the rotation center axis A first winding member having a groove, a first winding member extending in parallel with the rotation center axis, having a front end and a rear end, and having a second groove parallel to the rotation center axis and facing the first groove. A double winding member, extending in parallel with the rotation center axis, having a front end and a rear end, facing the first groove, inserted into the second groove, and the rear end fixed to the fixing member A first clamping member, a second clamping member that extends parallel to the rotation center axis, has a front end and a rear end, faces the second groove, and is inserted into the first groove; A connecting sliding member that connects the rear end of the two-turn member and the rear end of the second clamping member;
The connecting sliding member is slidable in the approaching direction of the first winding member and the second winding member with respect to the fixed member,
By sliding the connecting sliding member in one direction in the distance approaching direction with respect to the fixed member, the second winding member and the second clamping member slide in the one direction, The first winding member and the second winding member approach, the first clamping member and the second clamping member are separated,
By sliding the connecting sliding member in the opposite direction to the one direction with respect to the fixed member, the second winding member and the second holding member slide in the opposite direction, The first winding member and the second winding member are separated from each other, and the first holding member and the second holding member approach each other.

  In the winding core of the present invention, in the winding core, the coupling sliding member engages the engagement pin by moving an engagement pin extending in the direction of the rotation center axis in the direction of the rotation center axis. By engaging the engaging pin with the engaged portion, the connecting sliding member slides in a direction opposite to the one direction with respect to the fixed member. The first winding member and the second winding member are separated from each other, and the first clamping member and the second clamping member approach each other.

  The winding unit of the present invention includes the winding core, the engagement pin, a rotation drive mechanism that rotates the winding core, and an engagement pin moving mechanism that moves the engagement pin in the direction of the rotation center axis. And an extraction mechanism for extracting the winding core from the manufactured winding element by moving the winding core in the direction of the rotation center axis.

  According to the winding core and the winding unit of the present invention, the connecting sliding member to which the second winding member is connected is oriented in one vertical axis direction perpendicular to the rotation center axis with respect to the fixed member. By sliding, the first winding member and the second winding member approach each other. For this reason, when extracting a core from a winding element after manufacture of a winding element, a 1st winding member and a 2nd winding member are made by making a 1st winding member and a 2nd winding member approach. A gap can be generated between the outer peripheral surface of the winding element and the inner peripheral surface of the winding element, the core does not contact the inner peripheral surface of the winding element, and the winding core has a hook-like shape on the center side of the winding element It is not pulled out and deformed. For this reason, the work for correcting the shape of the winding element is not required. According to the winding core and winding unit of the present invention, the connecting sliding member to which the second clamping member is connected is slid in the direction opposite to the one direction in the one vertical axis direction with respect to the fixed member. By making it move, the 1st clamping member and the 2nd clamping member approach. For this reason, a 1st separator and a 2nd separator can be reliably fixed between a 1st clamping member and a 2nd clamping member, and a separator etc. can be wound in the state where the positioning of the separator was stabilized.

It is a side view which shows the structure of the winding core which concerns on this invention. It is a figure which shows the structure of the core of FIG. 1, The figure (a) is a front view, The figure (b) is an AA cut | disconnection sectional view. It is a side view which shows the winding unit of this invention using the winding core of FIG. FIG. 3 is a side view showing a state in which the first winding member and the second winding member are separated from each other and the first holding member and the second holding member are approached in the core of FIG. 1. In the core of FIG. 1, the first winding member and the second winding member are separated from each other, and the first clamping member and the second clamping member are brought close to each other, and FIG. FIG. 4B is a sectional view taken along the line BB. FIG. 2 is a side view showing a state where the winding core is moved in the positive direction of the X axis in the winding unit of the present invention using the winding core of FIG. 1. It is a front view which shows the winding apparatus containing the winding unit of this invention using the winding core of FIG. It is a front view which shows the use condition of the core of FIG. It is a front view which shows the use condition of the core of FIG. It is a front view which shows the use condition of the core of FIG. It is a front view which shows the state which decomposed | disassembled the core of FIG. It is a front view which shows the conventional winding apparatus. It is a figure which shows the conventional winding core, The figure (a) is a side view, The figure (b) is a front view, The figure (c) is a side view which shows a use condition.

  An embodiment of a winding core and a winding device according to the present invention will be described with reference to the drawings. 1-10, the code | symbol 10 is the core which concerns on this invention, and the code | symbol 12 is the winding unit which concerns on this invention.

  As shown in FIGS. 1 and 7, the core 10 according to the present invention has a rotation center axis C and is attached to the rotation jig 14 of the winding unit 12 of FIG. 3 to rotate around the rotation center axis C. Thus, the winding element 24 is manufactured by winding the belt-like positive electrode 16, the belt-like first separator 18, the belt-like negative electrode 20, and the belt-like second separator 22. 1, 2, 4, and 5 omit the description of the raw material such as the first separator 18 or the winding element 24 in order to show the configuration.

  As shown in FIGS. 1 and 2, the core 10 extends in parallel with the fixing member 26 fixed to the rotating jig 14 of FIG. 3 and the rotation center axis C, and includes a leading end 30 (a) and a trailing end 30 ( b), a first winding member 30 having a rear end 30 (b) fixed to the fixing member 26 and having a first groove 28 parallel to the rotation center axis C, and extending parallel to the rotation center axis C. A second winding member 34 having a front end 34 (a) and a rear end 34 (b), having a second groove 32 parallel to the rotation center axis C and facing the first groove 28, and a rotation center It extends parallel to the axis C, has a front end 36 (a) and a rear end 36 (b), faces the first groove 28, is inserted into the second groove 32, and the rear end 36 (b) is a fixing member. 26, a first clamping member 36 fixed to 26, extending parallel to the rotation center axis C, having a front end 38 (a) and a rear end 38 (b), facing the second groove 32, and A second holding member 38 inserted into the groove 28, and a connecting sliding member 40 that connects the rear end 34 (b) of the second winding member 34 and the rear end 38 (b) of the second holding member 38; I have.

  As shown in FIG. 11A, the fixing member 26, the first winding member 30, and the first clamping member 36 are fixed to each other. Further, as shown in FIG. 11B, the second winding member 34, the second clamping member 38, and the connecting sliding member 40 are fixed to each other and integrated with the fixing member 26 and the like in the Z-axis direction. To slide.

  As shown in FIGS. 1 and 2, the fixing member 26 has a hollow portion 27, and the hollow portion 27 has a Z-axis direction perpendicular to the rotation center axis C (the first winding member 30 and the second winding member). The connecting sliding member 40 has an engagement hole 44 into which the sliding pin 42 is inserted, and the connecting sliding member 40 is fixed to the fixing member 26. The sliding pin 42 can slide in the Z-axis direction. The connecting sliding member 40 is applied with an urging force to slide in the direction D1 (one direction, negative Z-axis direction) by the compression spring 46.

  As shown in FIGS. 1 and 2, the first winding member 30 has a connecting portion 48 that is continuous with the rear end 30 (b), and the connecting portion 48 is fixed to the hollow portion 27 of the fixing member 26. . Further, as shown in FIG. 2, the first winding member 30 has a semicircular cross section, has a first groove 28 at the center of the semicircle, and the first groove 28 has a second sandwiched portion. A member 38 is inserted.

  As shown in FIGS. 1 and 2, the second winding member 34 has a connecting portion 50 that is continuous with the rear end 34 (b), and the connecting portion 50 is fixed to the connecting sliding member 40. Further, as shown in FIG. 2, the second winding member 34 has a semicircular cross section, has a second groove 32 at the center of the semicircle, and the second groove 32 has a first sandwiched portion. A member 36 is inserted. Protrusions 54 supported by the rotation support tool 52 shown in FIG. 3 are provided at the distal end 30 (a) of the first winding member 30 and the distal end 34 (a) of the second winding member 34. The rotation support 52 is fixed to the front panel 13 via a frame (not shown), and rotatably supports the core 10.

  As shown in FIGS. 1 and 2, the first clamping member 36 has a connecting portion 56 that is continuous with the rear end 36 (b), and the connecting portion 56 is fixed to the hollow portion 27 of the fixing member 26. Further, a groove 58 extending in the X-axis direction is provided at the negative end of the first holding member 36 in the Z-axis direction, and provided in the positive end of the Z-axis direction of the second holding member 38 and extending in the X-axis direction. Together with the presser bar 60, the vicinity of the tips of the first separator 18 and the second separator 22 can be firmly held and fixed. The vicinity of the tip 36 (a) of the first clamping member 36 has a gradient 37 so that the core 10 can be moved in the X-axis direction and the first separator 18 and the second separator 22 can be easily inserted.

  As shown in FIGS. 1 and 2, the second clamping member 38 has a connecting portion 62 that is continuous with the rear end 38 (a), and the connecting portion 62 is fixed to the connecting sliding member 40. That is, the second winding member 34 and the second clamping member 38 are connected via the connecting sliding member 40, and the connecting sliding member 40 is moved in the Z-axis direction (rotation center axis C) with respect to the sliding pin 42. The first winding member 34 and the second clamping member 38 are moved in the Z-axis direction. Thus, the first winding member 30 and the second winding member 34 are caused by sliding the connecting sliding member 40 in the direction D1 (one direction, negative Z-axis direction) with respect to the sliding pin 42. And the first holding member 36 and the second holding member 38 are separated from each other, and the connecting sliding member 40 is moved in the direction D2 opposite to the direction D1 with respect to the sliding pin 42 (reverse to one direction). The first winding member 30 and the second winding member 34 are separated from each other, and the first clamping member 36 and the second clamping member 38 approach each other.

  In FIGS. 1 and 2, the first winding member 30 and the second winding member 30 are moved by sliding the connecting sliding member 40 in the direction D <b> 1 with respect to the fixed member 26 by the biasing force of the compression spring 46. The member 34 approaches and the first clamping member 36 and the second clamping member 38 are separated from each other.

  As shown in FIG. 1, the connecting sliding member 40 engages the engaging pin 64 by moving the engaging pin 64 extending in the direction of the rotation center axis C in the X-axis direction (direction of the rotation center axis C). It has an engaged portion 61 to be engaged. The engaged portion 61 has a tapered portion 65, and the core 10 engages the sharpened portion 67 of the engaging pin 64 with the tapered portion 65, and the engaging pin 64 connects the engaged portion 61 with the Z axis positive. 4 and FIG. 5, the connecting sliding member 40 slides in the positive Z-axis direction with respect to the fixed member 26, and the first winding member 30 and the second winding are moved. The member 34 is separated, and the first clamping member 36 and the second clamping member 38 are configured to approach each other.

  When the winding core 10 is assembled, first, the sliding pin 42 is removed from the fixing member 26 shown in FIG. 11A, and the second winding member 34 is removed from the connecting sliding member 40 shown in FIG. And the 2nd clamping member 38 is removed. Next, the connecting sliding member 40 is disposed in the hollow portion 27, the sliding pin 42 is inserted into the fixing member 26, the compression spring 46 and the connecting sliding pin 42 in the Z-axis direction, and the sliding pin 42 is fixed to the fixing member. 26. Next, the first clamping member 36 is inserted into the second groove 32 of the second winding member 34, the second winding member 34 is fixed to the connecting sliding member 40, and the second clamping member 38 is fixed to the first winding member 38. The second clamping member 38 is fixed to the connecting sliding member 40 by being inserted into the first groove 28 of the winding member 30. In this way, the core 10 shown in FIGS. 1 and 2 is assembled.

  Further, as shown in FIG. 3, the winding unit 12 according to the present invention includes a winding core 10, a front panel 13, an engagement pin 64, a rotation drive mechanism 66 that rotates the winding core 10, and an engagement pin. An engagement pin moving mechanism 68 that moves 64 in the direction of the rotation center axis C, and an extraction mechanism that extracts the core 10 from the manufactured winding element 24 by moving the winding core 10 in the direction of the rotation center axis C. 70. The winding unit 12 is used by being incorporated in the winding device 71 shown in FIG. 7 having the same configuration as the winding device 120 shown in FIG. 11 except for the winding unit 12.

  The rotation drive mechanism 66 includes a rotation jig 14 that fixes the core 10 and rotates together with the core 10, and a motor 72 that rotates the rotation jig 14. The rotating jig 14 includes a fixing portion 74 that fixes the joint 63 included in the core 10, and a first rod 76 that is continuous with the fixing portion 74 and has a hollow portion. The joint 63 is configured integrally with the fixing member 26. The fixing portion 74 is inserted with the joint 63 and fixed with a fastener such as a screw. The second rod 78 is inserted into the hollow portion of the first rod 76 so that the second rod 78 can slide in the X-axis direction with respect to the first rod 76.

  The engaging pin moving mechanism 68 has a front end and a rear end, a fixing portion 69 of the engaging pin 64 is fixed to the front end, a second rod 78 inserted into a hollow portion of the first rod 76, and a second rod The cam follower 80 that supports the rear end of 78 and a cylinder 82 that moves the cam follower 80 in the X-axis direction. When the cylinder 82 operates, the engagement pin 64 moves in the X-axis direction with respect to the first rod 76 together with the second rod 78.

  The extraction mechanism 70 supports the first rod 76, a bearing 84 fixed to the cylinder 82, a moving member 86 fixed to the cylinder 82 and moving in the X-axis direction, and moving the moving member 86 in the X-axis direction. And a ball screw 88. By the rotation of the ball screw 88, the moving member 86 moves in the X-axis direction together with the first rod 76 and the core 10.

  Such a winding core 10 and winding unit 12 are incorporated in a winding device 71 shown in FIG. 7, and the positive electrode 16, the first separator 18, the negative electrode 20, and the second separator 22 are wound to wind the winding element 24. The operation and effect of manufacturing the will be described below.

  As shown in FIG. 7, three winding units 12 to which the winding core 10 is attached are incorporated in a turret 73 of the winding device 71. FIG. 7 shows that the positive electrode 16, the first separator 18, the negative electrode 20, and the second separator 22 are wound at the position S1, and the positive electrode 16 and the negative electrode 20 are cut by the cutters 75 and 77. A state immediately after the winding element 24 is sent to the position S2 by the rotation of the turret 73 is shown. In the state of FIG. 7, as shown in FIG. 3, the first separator 18 and the second separator 22 are in the X axis of the gap 90 between the first clamping member 36 and the second clamping member 38 of the core 10 at the position S <b> 1. Located in the forward extension.

  Next, the ball screw 88 included in the extraction mechanism 70 of the winding unit 12 at the position S1 is activated, and the moving member 86, the rotating jig 14, and the core 10 are moved in the positive direction of the X axis as shown in FIG. To do. As the core 10 moves in the positive direction of the X axis, the first separator 18 and the second separator 22 come into contact with the gradient 37 of the core 10 and then enter the gap 90, as shown in FIG. In addition, the first separator 18 and the second separator 22 are inserted into the gap 90 between the first clamping member 36 and the second clamping member 38. At this time, the protrusions 54 of the leading end 30 (a) of the first winding member 30 and the leading end 34 (a) of the second winding member 34 of the winding core 10 are inserted into the rotation support 52 and rotatably supported. The

  Next, in the winding unit 12 at the position S1, the cylinder 82 is operated and the engaging pin 64 is moved in the positive direction of the X-axis as shown in FIG. The second winding member 34 and the second clamping member 38 slide in the direction D2 as shown in FIG. 4 against the urging force of the compression spring 46. When the second winding member 34 and the second clamping member 38 slide in the direction D2 against the urging force of the compression spring 46, the first clamping member 36 and the second clamping member 38 approach each other. As shown in FIG. 8B, the first clamping member 36 and the second clamping member 38 clamp the first separator 18 and the second separator 22. In order to engage the engaging pin 64 with the engaged portion 61 to bring the first holding member 36 and the second holding member 38 closer together, and to hold the first separator 18 and the second separator 22, The positioning of the second separator 22 is stable. After the first clamping member 36 and the second clamping member 38 sandwich the first separator 18 and the second separator 22, the cutter 92 cuts the first separator 18 and the second separator 22.

  Next, in the winding unit 12 at the position S1, the motor 72 of the rotation driving mechanism 66 is operated to rotate the winding core 10 as shown in FIG. 16 is laminated on the first separator 18, the negative electrode 20 is laminated between the first separator 18 and the second separator 22, and the winding core 10 is further rotated, whereby the positive electrode 16, the first separator 18, and the negative electrode 20 and the second separator 22 are wound around the core. When the core 10 is rotated a predetermined number of times, the cutters 75 and 77 cut the positive electrode 16 and the negative electrode 20, and further rotate the core 10 a plurality of times, as shown in FIG. 9B. Element 24 is manufactured.

  When the winding element 24 is manufactured in the winding unit 12 at the position S1, the turret 73 shown in FIG. 7 rotates 120 ° clockwise, and the winding unit 12 at the position S1 is sent to the position S2 and manufactured. The winding element 24 is sent to the position S2 while being wound around the winding core 10, and again enters the state shown in FIG. Next, the first sandwiching member 36 and the second sandwiching member 38 of the core 10 of S1 separate from the core 10 of the position S2 sandwich the first separator 18 and the second separator 22, and the cutter 92 is The first separator 18 and the second separator 22 are cut. At the position S2 that supports the winding element 24 from which the first separator 18 and the second separator 22 are cut, the core 10 is further rotated about several times to completely wind the first separator 18 and the second separator 22; After the tape 94 is attached to the surface of the winding element 24, the turret 73 is further rotated 120 ° clockwise, and the winding element 24 is sent to the position S3.

  Next, at the position S3, the cylinder 82 of the engagement pin moving mechanism 68 is operated, the engagement pin 64 is moved in the negative direction of the X axis, and the engagement pin 64 is separated from the engaged portion 61. As shown to (a), the 2nd winding member 34 and the 2nd clamping member 38 slide to the direction of D1 with the urging | biasing force of the compression spring 46. As shown to FIG. When the second winding member 34 and the second clamping member 38 slide in the direction D1 with respect to the sliding pin 42, the first winding member 30 and the second winding member 34 approach, A gap 96 is formed between the first winding member 30 and the second winding member 34 and the inner peripheral surface 95 of the winding element 24. Further, when the second winding member 34 and the second clamping member 38 slide in the direction D1 with respect to the sliding pin 42, the first clamping member 36 and the second clamping member 38 are separated from each other. A gap 90 is generated between the one clamping member 36 and the second clamping member 38.

  Next, at position S3, as shown in FIG. 10B, the gripping tool 98 grips the winding element 24 and lifts the winding element 24 slightly. When the gripping device 98 lifts the winding element 24 slightly, a gap 96 is generated over the entire inner peripheral surface 95 of the winding element 24. In a state where a gap 96 is generated over the entire inner peripheral surface 95 of the winding element 24, the ball screw 88 included in the extraction mechanism 70 of the winding unit 12 at the position S1 is operated, and the winding core 10 is moved to X in FIG. It moves in the negative axis direction, and the core 10 is extracted from the winding element 24. Since the gap 96 is generated over the entire inner peripheral surface 95 of the winding element 24, the core 10 does not contact the inner peripheral surface 95 of the winding element 24, and the first winding member 30 and the second winding Due to the frictional force between the outer peripheral surface and the inner peripheral surface 95 of the member 34, the winding core 10 is not deformed by drawing the center side of the winding element 24 into a hook shape. For this reason, the work for correcting the shape of the winding element 24 is not required. Since a gap 96 is formed over the entire inner peripheral surface 95 of the winding element 24, the winding core 10 may be formed on the inner peripheral surface 95 of the winding element 24 depending on the position of the winding element 24 lifted by the gripping tool 98. There is no contact at all. In addition, since a gap 90 is generated between the first clamping member 36 and the second clamping member 38, the first separator 18 and the second separator 22 are disposed between the first clamping member 36 and the second clamping member 38. It is extracted smoothly.

  The winding element 24 from which the core 10 has been extracted is transported to the next step and processed into the shape as it is or into a predetermined shape such as a prism, and then placed in a metal case or laminate pack. A battery is manufactured.

  As mentioned above, although embodiment of this invention was described based on drawing, this invention is not limited to what was illustrated. For example, the winding core is not limited to a winding element that manufactures a winding element having a circular cross section, and may be a winding core that manufactures a winding element having an elliptical, flat, rectangular, or other polygonal cross section. . Alternatively, the fixing member, the first winding member, and the first clamping member may be integrally configured, and the connecting sliding member, the second winding member, and the second clamping member may be configured integrally. Further, by engaging the engaging pin with the engaged portion, the connecting sliding member slides in one direction with respect to the fixed member, and the first winding member and the second winding member approach each other. The first clamping member and the second clamping member may be separated from each other. In this case, the connecting sliding member is slid in the direction opposite to the one direction with respect to the fixed member by the biasing force of the spring.

  In the present invention, when the winding core is extracted from the winding element, the outer peripheral surface of the winding core does not contact the inner peripheral surface of the winding element. Thereby, the winding element is not deformed into a bowl shape, and an operation for correcting the shape of the winding element is not required. For this reason, it can be widely used for winding devices.

10: winding core 12: winding unit 13: front panel 14: rotating jig 16: positive electrode 18: first separator 20: negative electrode 22: second separator 24: winding element 26: fixing member 27: hollow portion 28 : First groove 30: first winding member 30 (a): tip 30 (b): rear end 32: second groove 34: second winding member 34 (a): tip 34 (b): rear End 36: first clamping member 36 (a): tip 36 (b): rear end 38: second clamping member 38 (a): tip 38 (b): rear end 40: connecting sliding member 42: sliding pin 44: engaging hole 46: compression springs 48, 50, 56, 62: connecting portion 52: rotating support tool 54: protrusion 58: groove 60: presser bar 61: engaged portion 62: connecting portion 63: joint 64: engaging Joint pin 65: Tapered portion 66: Rotation drive mechanism 67: Sharpened portion 68: Engagement pin moving mechanism 69: Fixed portion 70: Removal Mechanism 71: Winding device 72: Motor 73: Turret 74: Fixing part 75, 77: Cutter 76: First rod 78: Second rod 80: Cam follower 82: Cylinder 84: Bearing 86: Moving member 88: Ball screw 90: Crevice 92: Cutter 94: Tape 95: Inner peripheral surface 96: Crevice 98: Holding instrument C: Center axis of rotation

Claims (3)

A belt-like positive electrode, a belt-like first separator, a belt-like negative electrode, and a belt-like second electrode by having a rotation center axis and attaching to a rotation jig of the winding device and rotating around the rotation center axis A winding core for winding a separator to produce a wound element;
A fixing member fixed to the rotating jig;
A first winding member extending in parallel with the rotation center axis, having a front end and a rear end, the rear end being fixed to the fixing member, and having a first groove parallel to the rotation center axis;
A second winding member extending in parallel with the rotation center axis, having a front end and a rear end, and having a second groove parallel to the rotation center axis and facing the first groove;
A first clamping member extending in parallel with the rotation center axis, having a front end and a rear end, facing the first groove, inserted into the second groove, and having a rear end fixed to the fixing member; ,
A second clamping member that extends parallel to the rotation center axis, has a front end and a rear end, faces the second groove, and is inserted into the first groove;
A connecting sliding member that connects the rear end of the second winding member and the rear end of the second clamping member;
With
The connecting sliding member is slidable in the approaching direction of the first winding member and the second winding member with respect to the fixed member,
By sliding the connecting sliding member in one direction in the distance approaching direction with respect to the fixed member, the second winding member and the second clamping member slide in the one direction, The first winding member and the second winding member approach, the first clamping member and the second clamping member are separated,
By sliding the connecting sliding member in the opposite direction to the one direction with respect to the fixed member, the second winding member and the second holding member slide in the opposite direction, A winding core in which the first winding member and the second winding member are separated from each other, and the first holding member and the second holding member approach each other.   The connecting sliding member includes an engaged portion that engages the engagement pin by moving an engagement pin extending in the direction of the rotation center axis in the direction of the rotation center axis. By engaging with the engaged portion, the connecting sliding member slides in a direction opposite to the one direction with respect to the fixed member, and the first winding member and the second winding member The core according to claim 1, wherein the first clamping member and the second clamping member approach each other. A winding core according to claim 2;
An engagement pin according to claim 2;
A rotation drive mechanism for rotating the winding core;
An engagement pin moving mechanism for moving the engagement pin in the direction of the rotation center axis;
An extraction mechanism for extracting the core from the wound element manufactured by moving the core in the direction of the rotation center axis;
Winding unit equipped with.

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