JP6668052B2 - Winding device - Google Patents

Description

  The present invention relates to a winding device for winding a band-shaped element film for forming a battery or a capacitor around a core.

  Conventionally, a strip-shaped separator, a positive electrode, and a negative electrode (element film) are wound around a core (core), and the wound winding body is immersed in an electrolytic solution to fill a gap between the separator, the positive electrode, and the negative electrode. Batteries are manufactured by injecting electrolyte.

  20, reference numeral 120 denotes a winding device having a winding mechanism 122 that winds the separators 200 and 202, the positive electrode 204, and the negative electrode 206 sent from the webs 210, 212, 214, and 216 around the core 108. It is.

  In the winding device 120, in the position S <b> 1, in a state where the core 108 shown in FIG. 21A is attached to a rotating jig, the vicinity of the ends of the separators 200 and 202 is fixed to the core 108 by the adhesive tape 113. Is rotated several times.

  As the core 108, a commercially available off-the-shelf product or one manufactured in another process is used.

  Thereafter, the positive electrode 204 is laminated on the outer peripheral surface of the separator 200 and the inner peripheral surface of the separator 202, and the negative electrode 206 is laminated on the outer peripheral surface of the separator 202 and the inner peripheral surface of the separator 200, and the core 108 is driven to rotate. A wound body is formed.

  After the wound body is formed, the separator 200 and the like are cut by a cutter (not shown). Further, the core 108 is fixed at the position S2 shown in FIG. 20 by an adhesive tape (not shown) on the inner peripheral surface near the rear end of the separator 200 or the like to the outer peripheral surface of the separator 200 or the like. A recycled product 109 is formed. Thereafter, the rotating jig is extracted from the wound product 109 at the position S3, and the wound product is taken out. An extraction electrode is attached to each of the positive electrode 204 and the negative electrode 206.

  The wound product 109 is carried into the next step, and in the next step, is put into the battery can 130 shown in FIG. 22, and the electrolytic solution is placed in the gap between the separator and the positive electrode and the negative electrode, on the opening side of the battery can 130. (From above) to form a battery.

  When the wound product 109 is manufactured using the core 108 as described above, a commercially available core 108 is used, or a product manufactured in another process is used. Since the time and effort required to mount the tool are required, the production cost of the rolled product 109 increases.

  As a patent document relating to the core, there is a document relating to a method for manufacturing a coreless sheet roll (see Patent Document 1). However, there is nothing related to the present invention.

JP-A-2004-231399

  An object of the present invention is to provide a winding device that does not require the core to be attached to a rotating jig of the winding device.

The winding device of the present invention is a winding device having a winding mechanism for winding a band-shaped element film around a core,
A suction body having a rotation center axis and an outer peripheral surface, and sucking air from around the outer peripheral surface;
Rotating means for rotating the suction body about the rotation center axis,
Positioning means for positioning the vicinity of the front end of the core film on the outer peripheral surface of the suction body,
Cutting means for cutting the rear end of the core film roll wound by the suction body being rotated by a predetermined rotation angle,
A rear end fixing means for fixing an inner peripheral surface near a rear end of the core film roll to an outer peripheral surface of the core film roll,
It is characterized by including.
Further, in the winding device of the present invention, in the winding device, the rear end fixing means fixes an area near a rear end of the core film roll to an outer peripheral surface of the core film roll with an adhesive tape. It is characterized by doing.

  According to the winding device of the present invention, in the winding device, a core can be manufactured, and a separator or the like can be wound around the manufactured core. For this reason, the work of attaching the core to the rotating jig of the winding device becomes unnecessary, and the manufacturing cost of the wound product can be reduced.

It is a front view showing the whole winding device concerning the present invention. It is a sectional perspective view showing the 1st suction body of the winding device concerning the present invention, and the same figure (a) shows one embodiment, and the same figure (b) shows another embodiment. FIG. 2 is a side sectional view showing a mechanism for moving a first suction body of the winding device of FIG. 1 in a direction perpendicular to a base. FIG. 2 is a side cross-sectional view showing a state where the first suction body of the winding device of FIG. 1 is moved in a direction perpendicular to the base and stored in the base. FIG. 2 is an enlarged view showing a mechanism of a positioning means near a front end of a core film in the winding device of FIG. 1, wherein FIG. 1A is a front view and FIG. 2B is a right side view. FIG. 2 is a side cross-sectional view illustrating a mechanism near a second suction body of the winding device of FIG. 1. FIG. 2 is an enlarged view showing a mechanism of a positioning means near a tip end of an adhesive tape in the winding device of FIG. 1, wherein FIG. 1 (a) is a left side view and FIG. 1 (b) is a front view. FIG. 2 is a front view showing an operation of a positioning means near a front end of a core film in the winding device of FIG. 1, wherein FIG. 1 (a) is a view showing a state where a suction nozzle is on standby, and FIG. FIG. 4 is a view showing a state where a suction nozzle sucks a core film. FIG. 2 is a front view showing an operation of a positioning means near a leading end of a core film in the winding device of FIG. 1, and FIG. 1A is a diagram showing a state where a suction nozzle positions a core film; (B) is a diagram showing a state in which the first suction body rotates while the suction nozzle returns. FIG. 2 is a front view showing an operation of a positioning means near a leading end of a core film in the winding device of FIG. 1, and FIG. It is a figure which shows the state which turns, and the figure (b) which shows the state which cuts the film for cores by a cutter. FIG. 2 is a front view showing the operation of a positioning means near the tip of the adhesive tape in the winding device of FIG. 1, wherein FIG. 1 (a) is a view showing a state in which a positioning jig is on standby, and FIG. It is a figure showing the state where the positioning jig was in contact with the adhesive tape. FIG. 2 is a front view showing the operation of a positioning means near the tip of the adhesive tape in the winding device of FIG. 1, and FIG. 1A is a diagram showing a state in which a positioning jig positions the adhesive tape; (b) is a diagram showing a state in which the second suction body rotates while the positioning jig returns. FIG. 2 is a front view showing an operation of a positioning means near a tip of an adhesive tape in the winding device of FIG. 1, and FIG. 1A is a diagram showing a state in which a second suction body further rotates while a positioning jig returns. FIG. 2B is a diagram showing a state in which the adhesive tape is cut by a cutter. FIG. 2 is a partially enlarged front view showing a state in which a second suction body is adjacent to a first suction body in the winding device of FIG. 1. FIG. 2 is a partially enlarged front view showing a state where an adhesive tape is adhered to a core by the winding device of FIG. 1. FIG. 1A is a partially enlarged front view showing a state in which an adhesive tape is stuck to a core by the winding device of FIG. 1, and FIG. 1B shows a state in which the gripping means clamps the core. It is a partially enlarged front view. FIG. 4 is a partially enlarged front view showing a state where a gripping unit crushes a core. FIG. 4 is a partially enlarged front view showing a state where a rotary jig is inserted into a core. It is a partially enlarged front view showing a state where a core is fixed to a rotating jig. It is a front view showing the conventional winding device. FIG. 1A is a front view showing a state where an element film is wound around a core, and FIG. 1B is a front view showing a manufactured wound product. It is a perspective view which shows the state which manufactures a battery by a wound product.

  An embodiment of a winding device according to the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 10 denotes a winding device according to the present invention, which is a device for winding a separator, a separator, a positive electrode and a negative electrode around a core. The separator and the separator are made of a resin such as polyvinyl chloride, polyethylene, or polypropylene. The positive electrode and the negative electrode are made of a metal foil, or are formed by laminating a band-shaped resin on the metal foil. Reference numeral 12 denotes a core manufacturing mechanism according to the present invention.

  As shown in FIG. 1, the winding device 10 is provided in a substantially vertical direction, and includes a base 32 made of an aluminum alloy, steel, or the like. The base 32 has a core manufacturing mechanism 12 for manufacturing a core (not shown in FIG. 1 and indicated by reference numeral 16 in FIG. 17) from the core film 14, strip-shaped separators 200 and 202, a strip-shaped positive electrode 204, and a strip-shaped. A winding mechanism 18 for winding the negative electrode 206 around the core 16 and a transport path 72 for feeding the manufactured core 16 from the core manufacturing mechanism 12 to the winding mechanism 18 are provided.

(Core manufacturing mechanism)
As shown in FIG. 1, the core manufacturing mechanism 12 includes a drum-shaped first suction body (suction body) 22 having an outer peripheral surface 20 and sucking air from around the outer peripheral surface 20. As shown in FIG. 2A, the first suction body 22 has a hollow portion 34 and a plurality of suction holes 38 penetrating from the outer peripheral surface 20 to the hollow portion 34. The length of the range in which the plurality of suction holes 38 are arranged in the rotation center axis C1 direction is configured to be smaller than the width of the core film 14 to be sucked. Note that the first suction body 22 may have a hollow portion 34 and a plurality of slits 380 penetrating from the outer peripheral surface 20 to the hollow portion 34, as shown in FIG.

  By driving a vacuum pump (not shown), the first suction body 22 draws air from the hollow portion 34 through the hollow portion 313 and the rotary joint 314 from the vacuum evacuation hole 23 shown in FIGS. Can be sucked. Thereby, the air around the outer peripheral surface 20 can be sucked through the suction holes 38. The first suction body 22 has a rotation center axis C1 and is rotated clockwise by a servomotor (rotation means) 300 shown in FIGS. However, by operating the clutch 301, the first suction body 22 can be freely rotated without being driven by the servomotor 300. The first suction body 22 can wind the core film 14 around the outer peripheral surface 20 by sucking the core film 14 onto the outer peripheral surface 20 and rotating the core film 14 clockwise. The first suction body 22 can be moved in the Y-axis direction by the linear motor 302.

  Further, as shown in FIG. 1, the core manufacturing mechanism 12 includes a first base 24 adjacent to the first suction body 22. The first base 24 is movable in the Z-axis direction along a pair of rails 96 installed on the base 32 by driving means such as a motor mechanism (not shown).

  As shown in FIG. 1, a support shaft 44 that rotatably supports the material 42 of the core film 14 is provided on the first base 24. The core film 14 is wound around a free roller 46. The core film 14 is formed from a resin such as polyvinyl chloride, polyethylene, or polypropylene. The first base 24 is provided with a plurality of free rollers 46 which are rotatable and around which the core film 14 sent from the raw material 42 toward the first suction body 22 is wound. The tension of the core film 14 sent from the raw material 42 toward the first suction body 22 is adjusted by a dancer roller 48 that can move up and down.

  The first base 24 sucks the vicinity of the front end 15 of the core film 14, moves in the X-axis positive direction with respect to the first base 24, and moves the vicinity of the front end 15 of the core film 14 to a first suction body. A suction nozzle (positioning means) 26 for positioning on the outer peripheral surface 20 of the nozzle 22 is disposed. The suction nozzle 26 is moved in the X-axis direction with respect to the first base 24 by the cylinder 304 shown in FIG. The cylinder 304 is rotatable about a rotation center axis C3 by a servo motor (not shown) as shown in FIG.

  As shown in FIG. 5, a plurality of suction nozzles 26 are supported by a support member 306. The support member 306 is counterclockwise against a biasing force of a spring 310 about a rotation center axis C4 near the tip of a piston 308. It can rotate around. The clockwise rotation of the support member 306 is regulated by the stopper 312 and the projection 306a protruding from the other end of the support member 306. The operation of the suction nozzle 26 for positioning the vicinity of the front end 15 of the core film 14 on the outer peripheral surface 20 of the first suction body 22 will be described later in detail.

  As shown in FIG. 1, a cutter 30 that cuts the rear end of the core film roll wound around the outer peripheral surface 20 of the first suction body 22 is provided on the first base 24. The cutter 30 is configured to cut the core film 14 by moving in the negative Z-axis direction by driving means such as a cylinder (not shown).

  When the cutter 30 cuts the core film 14, the cutter 30 moves in the negative Z-axis direction with respect to the first base 24, and the vicinity of the cut portion of the core film 14 is moved to the first suction body 22. A pressing means 28 for pressing against the outer peripheral surface 20 of the camera is provided. The pressing means 28 includes a pressing body 50 and a cylinder 52 for moving the pressing body 50 in the negative direction of the Z axis.

  The first base 24 has gripping means (moving means) 68 for gripping the manufactured core 16 and moving the core 16 in the positive X-axis direction with respect to the first base 24 to send the core 16 to the transport path 72 in the next process. Is installed. The gripping means 68 is composed of two gripping members 69 which are separated or approach each other by a cylinder mechanism (not shown). The gripping member 69 is moved in the X-axis direction along a rail 70 installed on the first base 24 by driving means such as a motor mechanism (not shown).

  The core manufacturing mechanism 12 includes a support shaft 80 that rotatably supports the raw material 78 of the adhesive tape film 76 and a free roller 82 around which the adhesive tape film 76 is wound. The adhesive tape film 76 is wound as a raw material 78 with the adhesive side facing outward.

  The core manufacturing mechanism 12 includes a second base 86 at a position opposite to the first base 24 with the transfer path 72 therebetween. That is, the first base 24 and the second base 86 sandwich the transport path 72. The second base 86 can be moved in the Z-axis direction along a rail 110 installed on the base 32 by driving means such as a motor mechanism (not shown).

  As shown in FIG. 1, a second suction body 90 having an outer peripheral surface 88 and sucking air from around the outer peripheral surface 88 is disposed on the second base 86. The second suction body 90 has a hollow portion 92 and a suction hole 94 penetrating from the outer peripheral surface 88 to the hollow portion 92. By driving a vacuum pump (not shown), the second suction body 90 causes air in the hollow portion 92 to pass through the hollow portion 317 and the rotary joint 318 through a vacuum evacuation hole 316 provided at the center as shown in FIG. Can be sucked. Thus, the air around the outer peripheral surface 88 can be sucked through the suction holes 94.

  Although a plurality of suction holes 94 are formed, the suction holes 94 that do not suck the adhesive tape are closed. The second suction body 90 has a rotation center axis C2, and is rotated counterclockwise by a servomotor (rotation means) 320 shown in FIG. The second suction body 90 can suction the non-adhesive surface of the adhesive tape to the outer peripheral surface 88. The second suction body 90 is supported by the support member 311 shown in FIG. 6 and is movable in the X-axis direction by moving the support member 311 in the X-axis direction by the cylinder 102 shown in FIG. .

  As shown in FIG. 1, the second base 86 is attached to the adhesive surface near the leading end 95 of the adhesive tape film 76, and the vicinity of the leading end 95 of the adhesive tape film 76 is attached to the outer periphery of the second suction body 90. A positioning jig 100 for positioning by moving to the surface 88 is provided. The positioning jig 100 is moved in the X-axis direction with respect to the second base 86 by the cylinder 322. The cylinder 322 is rotatable around a rotation center axis C5 shown in FIG. 1 by a servomotor (not shown).

  As shown in FIG. 7, the positioning jig 100 is supported by a support member 324, and the support member 324 rotates clockwise around the rotation center axis C6 near the tip of the piston 326 against the urging force of the spring 328. It is rotatable. The counterclockwise rotation of the support member 324 is regulated by the stopper 330 and the protrusion 324a protruding from the other end of the support member 324. The positioning jig 100 has a plurality of grooves 332 so that the area of the adhesive surface of the adhesive tape is reduced and the adhesive tape is easily peeled off. The operation of the positioning jig 100 for positioning the vicinity of the front end 95 of the adhesive tape film 76 on the outer peripheral surface 88 of the second suction body 90 will be described later in detail.

  As shown in FIGS. 11A and 13B, the second base 86 is provided with the rear end of the suction portion of the adhesive tape film 76 sucked on the outer peripheral surface 88 of the second suction body 90. A cutter 106 for cutting is provided. The cutter 106 is moved in a direction from the back to the front in FIG. 13B by driving means such as a cylinder (not shown), and enters the cutter groove 334 of the second suction body 90 to cut the rear end of the suction unit. It is configured to be.

(Winding mechanism)
As shown in FIG. 1, the winding mechanism 18 includes a rotating jig 111 including two insertion members 101 that can be separated and approached from each other. The rotating jig 111 can be inserted into the manufactured core 16 (shown in FIG. 17) by bringing the two insertion members 101 closer to each other. The rotating jig 111 can be moved in the Z-axis direction in three stages of areas A, B, and C shown in FIG. 1 by a slide mechanism (not shown). Further, the rotation jig 111 can move in a direction perpendicular to the XZ plane. The winding mechanism 18 positions the tips of the separator 200, the separator 202, the positive electrode 204, and the negative electrode 206 on the outer peripheral surface of the core 16 into which the rotating jig 111 is inserted, and moves the rotating jig 111 by a motor (not shown). By rotating, the separator 200 and the like can be wound around the core 16.

(Transport route)
The transport path 72 includes a slide mechanism (not shown) that moves the rotary jig 111 in the Z-axis direction. In FIG. 1, reference character A indicates a region where the rotary jig 111 is inserted into the manufactured core 16, reference character B indicates a region where the separator 200 and the like are wound around the core 16, and reference character C indicates the separator 200 and the like. The area where the wound product manufactured by winding around the core 16 is carried out onto the carriage 112 by a pusher or the like (not shown) is shown.

  The operation of the winding device 10 having the above configuration will be described below. The operation will be described in chronological order unless otherwise specified.

(Winding of core film)
As shown in FIG. 1, the raw material 42 of the core film 14 is attached to the support shaft 44.

  As shown in FIG. 8A, the tip 15 of the core film 14 is positioned near the suction nozzle 26. The position of the suction nozzle 26 shown in FIG. 8A is the origin. A vacuum pump (not shown) is operated to suck air from the suction nozzle 26. As shown in FIG. 8B, the cylinder 304 is rotated clockwise around the center C3, and the suction nozzle 26 suctions the vicinity of the front end 15 of the core film 14.

  As shown in FIG. 9A, the cylinder 304 operates, the piston 308 extends, and the vicinity of the tip 15 of the core film 14 sucked by the suction nozzle 26 moves from the root of the piston 308 toward the tip. At this time, when the suction nozzle 26 abuts on the outer peripheral surface 20 of the first suction body 22, the support member 306 springs around the rotation center axis C <b> 4 due to the reaction force from the outer peripheral surface 20 of the first suction body 22. It rotates slightly counterclockwise against the urging force of 310. Thereby, the vicinity of the front end 15 of the core film 14 slides along the outer peripheral surface 20 of the first suction body 22.

  A vacuum pump (not shown) is operated, and the vicinity of the distal end 15 of the core film 14 is sucked by the outer peripheral surface 20 of the first suction body 22. The suction by the suction nozzle 26 is released, and as shown in FIG. 9B, the cylinder 304 is rotated counterclockwise around the rotation center C3, and the suction nozzle 26 is separated from the vicinity of the front end 15 of the core film 14. . The first suction body 22 is stopped after being rotated clockwise by a certain angle, for example, 540 degrees, and the core film 14 is wound around the outer peripheral surface 20 of the first suction body 22 by half a turn.

  The cylinder 304 is operated, and the suction nozzle 26 is returned to the home position as shown in FIG. The cylinder 52 is operated, and the pressing body 50 moves in the negative Z-axis direction to press the core film 14, as shown in FIG. 10B. The cutter 30 is moved in the negative Z-axis direction by a cylinder (not shown) to cut the core film 14. Thereby, the core film roll 54 is formed.

  Thereafter, the support shaft 44 of the core film 14 shown in FIG. 1 is rotated counterclockwise by a certain angle, and the tip 15 of the core film 14 is positioned near the suction nozzle 26 as shown in FIG. You. The core film 14 of the core film roll 54 may be pressed by the pressing body 50 so as not to be unraveled.

(Formation of adhesive tape)
As shown in FIG. 1, a raw material 78 of the adhesive tape film 76 is attached to the support shaft 80. The adhesive tape film 76 is wound around the free roller 82, and the leading end 95 is pulled to the vicinity of the positioning jig 100. In the vicinity of the positioning jig 100, the adhesive surface of the adhesive tape film 76 faces upward.

  As shown in FIG. 11A, the front end 95 of the adhesive tape film 76 is positioned near the positioning jig 100. The cutter 106 is retracted in the direction from the front to the rear in FIG. 11A (a direction perpendicular to the XZ plane). The position of the positioning jig 100 shown in FIG. 11A is the origin. The cylinder 322 is rotated counterclockwise around the rotation center C5, and the positioning jig 100 is brought into contact with the vicinity of the leading end 95 of the adhesive tape film 76 as shown in FIG. Thereby, the vicinity of the front end 95 of the adhesive tape film 76 is adhered to the positioning jig 100.

  The cylinder 322 operates, and as shown in FIG. 12A, the piston 326 extends, and the vicinity of the front end 95 of the adhesive tape film 76 affixed to the positioning jig 100 moves from the base of the piston 326 toward the front end. Moving. At this time, when the positioning jig 100 comes into contact with the outer peripheral surface 88 of the second suction body 90, the support member 324 moves around the rotation center axis C6 due to the reaction force from the outer peripheral surface 88 of the second suction body 90. It rotates slightly clockwise against the biasing force of the spring 328. Thereby, the vicinity of the front end 95 of the adhesive tape film 76 slides along the outer peripheral surface 88 of the second suction body 90. A vacuum pump (not shown) is operated, and the vicinity of the front end 95 of the adhesive tape film 76 is sucked by the outer peripheral surface 88 of the second suction body 90.

  The cylinder 322 is rotated counterclockwise, and the positioning jig 100 is separated from the vicinity of the front end 95 of the adhesive tape film 76 as shown in FIG. Since the adhesive force of the adhesive tape film 76 to the second suction body 90 is stronger than the adhesive force of the positioning jig 100 and the adhesive tape film 76, the positioning jig 100 is moved from near the tip 95 of the adhesive tape film 76. Separate.

  The cylinder 322 is operated, and the positioning jig 100 is returned to the origin, as shown in FIG. The second suction body 90 is rotated counterclockwise by a certain angle, and the cutter groove 334 is positioned at the uppermost position. As shown in FIG. 13B, the cutter 106 moves in a direction from the back to the front in FIG. 13B (a direction perpendicular to the XZ plane) and enters the cutter groove 334. As a result, the adhesive tape film 76 is cut, and the adhesive tape 74 is formed. At this time, the adhesive tape 74 is being sucked by the second suction body 90.

  Thereafter, the support shaft 80 of the adhesive tape film 76 shown in FIG. 1 is rotated clockwise by a fixed angle, and the leading end 95 of the adhesive tape film 76 is positioned near the suction nozzle 26 as shown in FIG. Positioned.

(Adhesion of adhesive tape)
First, the position of the adhesive tape 74 is attached to the position near the rear end 56 of the core film roll 54 with respect to the position of the rear end 56 of the core film roll 54 (see FIG. 14). (Position shown), the second suction body 90 or the first suction body 22 is rotated by a predetermined angle. Note that the core film roll 54 wound around the first suction body 22 does not loosen due to static electricity. The cylinder 102 shown in FIG. 1 is operated, and the second suction body 90 moves in the negative direction of the X-axis. As shown in FIG. 14, the second suction body 90 is used for the core wound around the first suction body 22. It comes into contact with the film roll 54. Note that the vicinity of the rear end 56 of the core film roll 54 may be sandwiched between the pressing body 50 and the first suction body 22 so that the vicinity of the rear end 56 of the core film roll 54 is not unraveled.

  In a state where the second suction body 90 is in contact with the core film winding body 54 wound around the first suction body 22, the second suction body 90 is rotationally driven counterclockwise by a servo motor (not shown) as shown in FIG. At this time, the clutch 301 is operated, the first suction body 22 is driven by the second suction body 90, and rotates clockwise. The first suction body 22 may be driven to rotate, the clutch of the second suction body 90 may be disengaged, and the second suction body 90 may be driven.

  When the second suction body 90 rotates counterclockwise and the first suction body 22 rotates clockwise, as shown in FIG. 15, the adhesive tape 74 is positioned near the rear end 56 of the core film roll 54. It is stuck on.

  When the adhesive tape 74 is attached near the rear end 56 of the core film roll 54 as shown in FIG. 16A, the cylinder 102 shown in FIG. It moves in the forward direction and returns to the position of FIG.

(Completion of core)
After the first base 24 and the holding means 68 shown in FIG. 1 are moved along the rail 96 in the positive Z-axis direction, the holding means 68 is moved along the rail 70 in the positive X-axis direction. As a result, as shown in FIG. 16B, the core film roll 54 wound around the first suction body 22 is in a state of entering the gripping means 68.

  The two gripping members 69 are slightly moved in a direction approaching each other, and the two gripping members 69 come into contact with the outer peripheral surface of the core film roll 54, and the core film roll 54 is It is gripped by the gripping member 69. The first suction body 22 is moved in the direction from the front to the back in FIG. 16B (the direction perpendicular to the XZ plane), and is extracted from the core film roll 54.

  As shown in FIG. 17, the two gripping members 69 are further moved in a direction (Z-axis direction) approaching each other, and the core film roll 54 that is being gripped is crushed in the Z-axis direction, 16 are formed.

(Moving core)
The gripping means 68 is further moved in the positive X-axis direction along the rail 70, and the core 16 is moved to the area A of the transport path 72 as shown in FIG. In the area A, the rotating jig 111 is moved in the direction from the back to the front in FIG. 18 (the direction perpendicular to the XZ plane) and inserted into the core 16 held by the holding member 69.

  As shown in FIG. 19, the rotating jig 111 inserted into the core 16 is moved in a direction in which the two insertion members 101 are separated from each other, and comes into contact with the inner peripheral surface of the core 16 to press the inner peripheral surface. . The core 16 is fixed to the outer peripheral surface of the rotating jig 111. The gripping means 68 is moved in the negative X-axis direction along the rail 70 and is separated from the core 16. The rotating jig 111 to which the core 16 is fixed is moved to a region B (shown in FIG. 1).

(Formation of wound products)
In the region B, the tips of the separator 200, the separator 202, the positive electrode 204, and the negative electrode 206 are fixed to the outer peripheral surface of the core 16, the rotating jig 111 is rotated, and the separator 200 and the like are wound around the core 16. .

  The wound body such as the separator 200 wound around the core 16 is cut at the rear end by a cutter (not shown). Next, the rear end of the wound body is fixed to the outer periphery of the wound body, and a wound product (not shown) is formed. At this time, the wound product is fixed around the rotating jig 111.

(Unloading wound products)
The rotating jig 111 to which the wound product is fixed is moved from the area B shown in FIG. In the area C, the wound product fixed to the rotating jig 111 is supported by a support (not shown). The two insertion members 101 of the rotating jig 111 are moved closer to each other, moved in the direction from the front to the back in FIG. 1 (perpendicular to the XZ plane), and extracted from the wound product.

  The support for supporting the wound product is moved in the negative direction of the X-axis shown in FIG. 1 to place the wound product on the transfer table 112. The transport table 112 on which the wound product is placed is moved in the negative direction of the X axis, and the wound product is unloaded from the winding device 10. The unloaded wound product is placed in a battery can (not shown), and the electrolyte is injected into gaps between the separator and the positive and negative electrodes to form a battery.

  According to the winding device 10, the core manufacturing mechanism 12, and the core manufacturing method of the present invention, in the winding device 10, the core 16 can be manufactured, and the separator 200 and the like can be wound around the manufactured core 16. For this reason, the work of attaching the core 16 to the rotating jig 111 of the winding device 10 becomes unnecessary. For this reason, the manufacturing cost of the wound product can be reduced.

  Although the embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to the illustrated ones. For example, the cutting means for cutting the rear end of the core film roll or the rear end of the suction portion of the adhesive tape may be a fusing device. The rear end fixing means for fixing the vicinity of the rear end of the core film roll to the outer peripheral surface of the core film roll may be a welding device using a heater. Further, the first suction body and the second suction body are not limited to a drum shape having a circular cross section, and may have a polygonal cross section.

  According to the winding device, the core manufacturing mechanism, and the core manufacturing method of the present invention, the operation of attaching the core to the rotating jig of the winding device becomes unnecessary. Therefore, it can be widely used for manufacturing a battery or a capacitor.

10: Winding device 12: Core manufacturing mechanism 14: Core film 16: Core 18: Winding mechanism 20: Outer peripheral surface 22: First suction body 24: First base 26: Suction nozzle 28: Pressing means 30: Cutter 32: Base 34: Hollow part 38: Suction hole 42: Raw material 50: Pressing body 52: Cylinder 54: Film winding body for core 68: Holding means 72: Transport path 74: Adhesive tape 76: Adhesive tape 76: Film for adhesive tape 78: Raw fabric 86: second base 88: outer peripheral surface 90: second suction body 92: hollow portion 94: suction hole 100: jig 102: cylinder 106: cutter

Claims (4)

A winding device having a core manufacturing mechanism for manufacturing a core used for winding a band-shaped element film for forming a battery or a capacitor ,
The core manufacturing mechanism includes:
A first suction body that has a rotation center axis and an outer peripheral surface, and sucks air from around the outer peripheral surface;
First rotating means for rotating the first suction body around the rotation center axis,
First positioning means for positioning the vicinity of the front end of the core film on the outer peripheral surface of the first suction body ,
A first cutting unit that cuts the rear end of the core film wound body that is wound by the first suction body being rotated by a predetermined rotation angle,
A rear end fixing means for fixing an inner peripheral surface near a rear end of the core film roll to an outer peripheral surface of the core film roll,
The winding device including.   The rear end fixing means,
  A second suction body having a rotation center axis and an outer peripheral surface, and sucking air from around the outer peripheral surface,
  Second rotating means for rotating the second suction body around the rotation center axis,
  A positioning jig configured to be attached to the adhesive surface near the front end of the adhesive tape film and to move and move the vicinity of the front end of the adhesive tape film to the outer peripheral surface of the second suction body,
  Second cutting means for cutting the suction portion rear end of the adhesive tape film suctioned to the outer peripheral surface of the second suction body,
  Driving means to move the second suction body, and to contact the core film wound body wound on the first suction body,
  Including
  The second suction means is configured to rotate around the rotation center axis of the second rotation means, so that an adhesive tape is stuck near a rear end of the core film roll. Item 2. The winding device according to Item 1.   When the second suction body contacts the core film roll wound around the first suction body, the first suction body follows the second suction body, or the second suction body. The winding device according to claim 2, wherein the winding device is configured to be driven by the first suction body.   The winding device according to claim 2, wherein the positioning jig has a plurality of grooves for reducing an area of an adhesive surface of the adhesive tape to be attached near a rear end of the core film roll.

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