JP6585639B2 - Laminating equipment - Google Patents

Description

  The present invention relates to a stacking apparatus used in, for example, a manufacturing process of a stacked battery.

  A laminated body constituting a laminated battery or the like is formed by alternately laminating a positive electrode foil coated with a positive electrode active material and a negative electrode foil coated with a negative electrode active material via a separator made of an insulating material. Yes.

  2. Description of the Related Art Conventionally, as an apparatus for manufacturing the above-described laminate, a laminate apparatus is known in which sheet bodies such as a positive electrode foil, a negative electrode foil, and a separator are sequentially transported and placed on a predetermined stage by a predetermined transport device.

  In such a laminating apparatus, usually, the upper surface of the laminated body is pressed by pressing claws so that the laminated sheet bodies are not displaced during the work (see, for example, Patent Document 1). Then, when a new sheet member is transported and placed on the upper surface of the laminated body in such a state, the pressing claw rises by a predetermined amount while the transport device presses the new sheet member from above. Rotate horizontally. Thereby, the pressing claw can be retreated from the laminated body without rubbing the upper surface of the laminated body. When the pressing claw is retracted from the laminated body, the edge of the sheet body that has been placed on the pressing claw so far extends straight and overlaps the upper surface of the laminated body. Thereafter, the pressing claw is lowered, and the upper surface of the laminated body is pressed again from above the newly placed sheet body.

  Here, conventionally, regardless of the thickness of the laminated body that increases with the progress of the lamination process, the presser claw always rises to a certain height position corresponding to the height position where the laminated body finally reaches. It was configured as follows.

  Therefore, in the initial stage of the lamination process where the thickness of the laminated body is thin, the amount of rise when the presser claw rises from the upper surface of the laminated body becomes large. When the raising amount of the presser claw is large, when the presser claw is raised, the edge portion of the sheet member placed thereon is greatly lifted. That is, the edge of the sheet placed on the presser claw is greatly deformed, and various problems may occur.

  For example, when the sheet body placed on the presser claw is an electrode foil, the electrode foil may be damaged. In addition, regardless of the type of the sheet body, when the edge of the sheet body placed on the presser claw is greatly deformed, the deformed portion is turned over, and the next sheet body is stacked in a bent state. There is also a fear. When such various problems occur, there is a risk of causing product quality deterioration, such as causing a short circuit.

  In view of this, in recent years, there is also a technique for lowering the stacking stage in accordance with the progress of the stacking process so that the height position of the upper surface of the stack is constant in order to suppress the relative amount of lifting of the presser claws (see FIG. For example, see Patent Document 2). Thereby, even in the initial stage of the laminating process, since the relative amount of lifting of the pressing claws can be reduced, the sheet body can be laminated without adding a large deformation to the sheet body placed thereon. it can.

Japanese Patent No. 5923654 JP2012-221715A

  However, in the configuration according to Patent Document 2, it is necessary to provide a mechanism for gradually lowering and holding the height position of the stacking stage as the stacking process proceeds and to control the mechanism. As a result, the configuration becomes complicated and the control load may increase.

  The present invention has been made in view of the above circumstances, and has as one of its main objects to provide a laminating apparatus capable of simplifying the configuration and the like while suppressing deterioration in the quality of the laminated body.

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

Means 1. A laminating apparatus for producing a laminate in which a positive electrode foil coated with a positive electrode active material and a negative electrode foil coated with a negative electrode active material are alternately laminated via a separator made of an insulating material. ,
A laminated part (lamination stage) for laminating the positive foil, the negative foil and the separator;
Transport means (adsorption means) capable of transporting and placing the sheet body including the positive electrode foil, the negative electrode foil or the separator to the laminated portion;
A pressing member for pressing the laminated body laminated on the laminated part from above;
The pressing member is configured to be capable of performing a displacement operation in the vertical direction and a displacement operation in the horizontal direction, and the new sheet body is placed on the laminated body pressed by at least the pressing member by the conveying means. In this case, the pressing member is lifted and displaced in the horizontal direction, and then includes a pressing member driving means capable of performing an operation of pressing the laminated body from the newly placed sheet body,
A laminating apparatus characterized in that at least a restricting member provided in the conveying means can be used to regulate the amount of elevation of the pressing member (an amount greater than a predetermined amount of the pressing member).

  According to the means 1, a new sheet body is placed on the laminated body pressed by the pressing member, and when the pressing member is raised, the rising amount is regulated.

  Thereby, for example, even in the initial stage of the stacking process in which the height of the stacked body is low, it is possible to suppress the relative increase amount of the pressing member based on the upper surface of the stacked body. Since the rising amount of the pressing member is reduced, the degree of turning of the edge portion of the sheet placed on the pressing member can be reduced. That is, the sheet body can be laminated on the laminated body without greatly deforming the sheet body placed on the pressing member. As a result, the quality of the laminate can be improved.

  In particular, in the present means, since the conveying member is provided with a regulating member for regulating the raising amount of the holding member, the height position (for example, the height position of the suction surface) at which the conveying means holds the sheet member and the regulating member The relative positional relationship with the height position is always constant. That is, the distance from the height position of the uppermost surface of the laminated body to the height position of the regulating member of the conveying means when the sheet body conveyed by the conveying means is placed on the laminated body is always constant.

  As a result, each time a sheet body is newly placed, the absolute height position of the pressing member gradually increases according to the height of the laminated body (lamination amount). The amount of lifting of the pressing member from is always constant.

  Thus, according to the present means, the amount of lifting of the pressing member can be made constant with a simpler configuration, and the configuration can be simplified.

  In addition, it is not necessary to newly perform a control for adjusting the raising amount of the pressing member according to the height of the laminated body by the pressing member driving means, and only the same operation control as the conventional one related to the pressing member and the conveying means is performed. Thus, the amount of lifting of the pressing member can be regulated, so that the control can be simplified.

  In addition, when a mechanism for gradually raising the height position of the pressing member with the progress of the laminating process is provided and the control is performed, there is a possibility that the same problem as in the above-described conventional technology may occur. .

  In general, a plurality of pressing members are provided around the laminated portion. Therefore, when restricting or adjusting the rising amounts of the plurality of pressing members, it is necessary to synchronize them. In this respect, according to the present means, it is possible to synchronize the operations of the plurality of pressing members only by providing the conveying means with a plurality of regulating members corresponding to the plurality of pressing members.

  Mean 2. 2. The laminating apparatus according to claim 1, wherein a driven portion (driven mechanism portion) that is driven by the regulating member and acts on the pressing member is provided apart from the conveying means.

  The term “follower” as used herein means operating by receiving an action from the regulating member without directly receiving an action (power transmission) from a predetermined driving means.

  According to the means 2, by providing the driven portion, it is possible to increase the regulation strength that regulates the rising amount of the pressing member.

  Separately from the restricting member, the follower portion is provided separately from the conveying means, whereby the weight of the conveying means can be suppressed. As a result, it is possible to suppress the lowering of the operability of the conveying means and thus the productivity.

Means 3. A biasing means for biasing the pressing member upward;
The laminating apparatus according to claim 1 or 2, wherein the upward movement amount of the pressing member can be regulated by regulating the upward displacement of the pressing member against the urging force of the urging means. .

  According to the means 3, it is possible to make the operation of the pressing member driving means constant as compared with a configuration in which the driving amount by the pressing member driving means is adjusted to adjust the rising amount of the pressing member. As a result, it is possible to further simplify the configuration and control.

Means 4. Corresponding to the pressing member, a notch is provided in the peripheral edge of the conveying means,
4. The laminating apparatus according to any one of means 1 to 3, wherein the regulating member is provided corresponding to the notch.

  According to the means 4, it is possible to bring the position of the pressing member (such as the position of the rotating shaft) closer to the laminated portion. As a result, the length of the regulating member can be further shortened, and the increase in size of the apparatus can be suppressed.

It is a perspective view for demonstrating the structure of a laminated body. It is a plane schematic diagram for demonstrating schematic structure of a lamination apparatus. It is a plane schematic diagram which shows schematic structure around a mounting apparatus and a lamination | stacking stage. It is a top view which shows a lamination | stacking stage and a holding mechanism, Comprising: It is a figure which shows the one operation | movement aspect (state in which the negative electrode pressing claw has stopped in the 1st stop position) of a holding member. It is a top view which shows a lamination | stacking stage and a holding | maintenance mechanism, Comprising: It is a figure which shows the one operation | movement aspect (The state which the separator presser claw on a negative electrode has stopped in the 1st stop position) of a holding member. It is a top view which shows a lamination | stacking stage and a holding mechanism, Comprising: It is a figure which shows the one operation | movement aspect (state which the positive electrode pressing claw has stopped in the 1st stop position) of a holding member. It is a top view which shows a lamination | stacking stage and a holding mechanism, Comprising: It is a figure which shows the one operation | movement aspect (state which the positive electrode separator presser claw has stopped in the 1st stop position) of a holding member. It is a top view which shows a lamination | stacking stage and a holding mechanism, Comprising: It is a figure which shows the one operation | movement aspect (state in which the blank part has stopped in the 1st stop position) of a holding member. It is a partial enlarged plan view which shows a lamination | stacking stage and a holding mechanism. It is a side view showing a stacking stage, a holding mechanism, and the like, and is an operation mode of a holding member, a suction portion, and the like (with the negative presser claw pressing the stack at the first stop position, It is a figure which shows the state conveyed to the upper position of the laminated body. It is a side view which shows a lamination | stacking stage, a holding mechanism, etc., Comprising: It is a figure which shows one operation | movement aspects (The state in which the separator was mounted on the negative electrode pressing nail | claw in the 1st stop position), such as a holding member and an adsorption | suction part. It is a side view which shows a lamination | stacking stage, a holding mechanism, etc., Comprising: It is a figure which shows one operation | movement aspects (state in which the negative electrode pressing claw was spaced apart from the laminated body in the 1st stop position), such as a holding member and an adsorption | suction part. FIG. 4 is a side view showing a stacking stage, a holding mechanism, and the like, and an operation mode of a holding member, a suction portion, and the like (a negative electrode pressing claw has moved to a second stop position and a negative electrode separator pressing claw has moved to a first stop position. FIG. It is a side view which shows a lamination | stacking stage, a holding | maintenance mechanism, etc., Comprising: It is a figure which shows one operation | movement aspects (state in which the negative electrode upper separator pressing claw fell in the 1st stop position), such as a holding member and an adsorption | suction part. FIG. 4 is a side view showing a stacking stage, a holding mechanism, and the like, and an operation mode of a holding member, a suction portion, and the like (a suction portion is stacked in a state where a separator holding claw on the negative electrode is pressing the stacked body at a first stop position) It is a figure which shows the state spaced apart from the body. It is a side view for demonstrating the height adjustment mechanism which concerns on another embodiment.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1, the laminated body 4 which comprises laminated | stacked batteries, such as a lithium ion secondary battery, is the negative electrode foil 1, the separator 2, the positive electrode foil 3, and the separator 2 being piled up repeatedly in this order from the bottom. Is formed.

  The negative electrode foil 1 and the positive electrode foil 3 are configured by applying and forming active materials 1B and 3B on both front and back surfaces of the electrode foil main bodies 1A and 3A made of a rectangular metal foil, and the active materials 1B and 3B are applied. It has a coated part formed and an uncoated part formed by exposing the electrode foil main bodies 1A and 3A.

  Specifically, the electrode foil main body 1A of the negative electrode foil 1 is made of, for example, copper, and the electrode foil main body 3A of the positive electrode foil 3 is made of, for example, aluminum. In addition, particles containing, for example, silicon as a negative electrode active material are coated on both front and back surfaces of the negative electrode foil 1, and particles containing, for example, lithium cobaltate, etc., as a positive electrode active material on both front and back surfaces of the positive electrode foil 3. Is applied.

  The separator 2 is formed of a rectangular sheet-like porous resin film having insulating properties, and is a rectangle that is slightly larger than the planar rectangular coating portions (active materials 1B and 3B) of the negative electrode foil 1 and the positive electrode foil 3. It has a shape.

  Hereinafter, when it is not particularly necessary to distinguish between positive and negative, the negative electrode foil 1 and the positive electrode foil 3 may be collectively referred to as “electrode foils 1 and 3”. Similarly, when it is not necessary to distinguish between the electrode foils 1 and 3 and the separator 2, the electrode foils 1 and 3 and the separator 2 may be collectively referred to as a “sheet body”.

  In an appropriate laminated state, the coated portions of the negative electrode foil 1 and the positive electrode foil 3 are completely covered with the separator 2 and do not protrude, and only the uncoated portions of the negative electrode foil 1 and the positive electrode foil 3 are different positions. Projecting from the separator 2. Each uncoated portion corresponds to a negative electrode tab and a positive electrode tab, and is an area electrically connected to the negative electrode and the positive electrode of the electrode terminal inside the laminated battery.

  Next, the laminating apparatus (laminated battery manufacturing apparatus) 5 for manufacturing the laminated body 4 will be described in detail. FIG. 2 is a schematic plan view showing a schematic configuration of the main part of the laminating apparatus 5. As shown in the figure, the laminating apparatus 5 includes a turntable 6, an intake operation unit 7, a lamination operation unit 8, an extraction operation unit 9, and a control unit 10.

  The turntable 6 has a substantially disk shape in plan view, and is provided so as to be rotatable around a fixed shaft 13 erected along a vertical direction on a base (not shown). On the turntable 6, twelve stacked stages S are arranged at equal intervals along the rotation direction. The stacking stage S constitutes a stacking part in the present embodiment.

  The turntable 6 is configured to rotate intermittently by 30 ° (360 ° / 12) in one direction by driving means (not shown). As a result, each stacking stage S is intermittently moved in order to the loading work position R1, the stacking work positions R2 to R9, the blank position R10, the picking work position R11, and the blank position R12. However, the relative positional relationship between the positions R1 to R12 and the fixed shaft 13 does not change.

  The stacking stage S is configured to be capable of placing a portable stacking pallet P (hereinafter simply referred to as “pallet P”) for stacking sheet bodies. The stacking stage S has a substantially rectangular shape in plan view that is slightly larger than the pallet P, and the pallet P is placed so that each side thereof is substantially parallel to each side of the stacking stage S.

  The pallet P placed on the lamination stage S is held in a state of being positioned with respect to the lamination stage S by a holding means (not shown) until the pallet P is taken out from the turntable 6 (lamination stage S) by the take-out operation unit 9. Is done.

  The pallet P has a substantially rectangular shape in plan view that is slightly larger than the sheet body, and the sheet body is placed so that each side thereof is substantially parallel to each side of the pallet P. As described above, the electrode foils 1 and 3 and the separator 2 are different in size, and even in an appropriate laminated state, the uncoated part of the electrode foils 1 and 3 protrudes from the separator 2 and is completely Although the surroundings are configured not to coincide with each other, for the sake of simplicity, the electrode foils 1 and 3 and the separator 2 are illustrated in the same rectangular shape in other drawings except FIG.

  The take-in operation unit 7 is a mechanism for placing the empty pallet P on which the sheet bodies are not stacked on the turntable 6, and is conveyed with a conveyor 7A that conveys the pallet P toward the take-in work position R1. An unillustrated intake device (for example, a pick-and-place device or the like) for placing the incoming pallet P on the stacking stage S located at the intake operation position R1 is provided.

  The laminating work unit 8 is a mechanism for sequentially laminating the sheets on the pallet P. The negative electrode foil placing device 11A for transporting and placing the negative foil 1 to the laminating work position R2 and the laminating work position R3. Separator mounting device 11B for transporting and mounting separator 2, positive electrode foil mounting device 11C for transporting and mounting positive foil 3 to stacking work position R4, separator mounting for transporting and mounting separator 2 to stacking work position R5 Placement device 11D, negative electrode foil placement device 11E for transporting and placing negative electrode foil 1 to lamination work position R6, separator placement device 11F for carrying and placing separator 2 to lamination work position R7, positive electrode to lamination work position R8 A positive foil mounting device 11G for transporting and mounting the foil 3 and a separator mounting device 11H for transporting and mounting the separator 2 to the stacking work position R9 are provided. Hereinafter, when it is not necessary to distinguish the mounting devices 11A to 11H, they may be collectively referred to as “mounting device 11”. Details of the mounting device 11 will be described later.

  The take-out operation unit 9 is a mechanism for taking out the pallet P on which the completed laminate 4 is placed from the turntable 6, and takes out the pallet P from the stacking stage S located at the take-out operation position R11. (For example, a pick-and-place device) and a conveyor 9A that conveys the extracted pallet P to a subsequent process. In the subsequent process, for example, the laminated body 4 is temporarily fixed with a tape, the laminated body 4 is inserted into a predetermined container, and the container is sealed.

  The control unit 10 is configured as a so-called computer system including, for example, a CPU as a calculation unit, a ROM that stores various programs, and a RAM that temporarily stores various data such as calculation data and input / output data. The control part 10 comprises the control means in this embodiment.

  The control unit 10 is electrically connected to the turntable 6, the intake work unit 7, the stacking work unit 8, and the take-out work unit 9, and is configured to be able to transmit and receive various data between them. For example, the control unit 10 is configured to be able to acquire the rotation angle of the turntable 6 based on a signal from an encoder (not shown) provided on the turntable 6.

  Moreover, the control part 10 is comprised so that execution control of the various apparatuses in the turntable 6, the intake work part 7, the lamination | stacking work part 8, the take-out work part 9, etc. can be performed. These drive controls are performed by outputting a control signal to the turntable 6 or the like based on setting data preset in the ROM or the like of the control unit 10 or data received from the turntable 6 or the like.

  For example, the control unit 10 outputs a drive signal to the turntable 6 every predetermined time, thereby performing control to rotate the turntable 6 intermittently by a predetermined angle (30 ° in this embodiment) every predetermined time.

  Further, the control unit 10 is configured to be able to execute control of the arrangement timing of the pallet P with respect to the stacking stage S and control of the extraction timing of the pallet P. These timing controls are performed based on a data table stored in the RAM.

  In the data table, position information of the pallet P on the turntable 6 (information on where the pallet P is located among the positions R1 to R12) and the number of sheet bodies stacked on the pallet P Information (information on how many sheet bodies are stacked on which pallet P) is stored. The data table is updated from time to time based on signals sent from the turntable 6 and the laminating work unit 8 to the control unit 10.

  Next, the configuration of the placement device 11 will be described in detail. FIG. 3 is a plan view schematically showing a schematic configuration around the mounting device 11 and the stacking stage S related thereto.

  The mounting device 11 includes a storage unit 12 that stores a sheet body that is supplied from a supply unit (not shown) (for example, a mechanism that cuts the material of the sheet body from a raw roll to a predetermined size), and the storage unit 12 and a conveying device 14 that conveys the sheet body toward the lamination stage S located at predetermined lamination operation positions R2 to R9 corresponding to itself.

  The transport device 14 includes a guide rail 15 provided so as to pass above predetermined stacking work positions R2 to R9 and the storage portion 12 corresponding to the transport device 14, and a transport arm 16 supported by the guide rail 15 in a suspended state. , And a suction portion 17 as a transport means provided at the lower end of the transport arm 16.

  The transfer arm 16 is provided so as to be movable along the guide rail 15 by a horizontal drive means (not shown), and is extendable in the vertical direction (the depth direction in FIG. 3) by a vertical drive means such as a servo motor (not shown). ing. Thereby, the adsorption | suction part 17 can move along the guide rail 15, and can move up and down.

  Note that the lifting / lowering amount of the suction unit 17 by the vertical drive means such as a servo motor (the amount of expansion / contraction of the transfer arm 16) is appropriately adjusted by the control unit 10 according to the height of the uppermost surface of the laminate 4 on the pallet P based on the data table. It is adjusted according to the position (sheet stacking amount).

  The adsorption part 17 has a base part 18 fixed to the lower end of the transfer arm 16 and an adsorption plate 19 made of a porous body provided below the base part 18 (see FIG. 10 and the like). .

  A suction path (not shown) communicating with the suction plate 19 is formed inside the base portion 18. A vacuum hose 20 that communicates with the suction path is connected to the outside of the base portion 18. A vacuum pump (not shown) is connected to the other end of the vacuum hose 20. The vacuum pump is controlled to be turned on / off by the control unit 10 so that the suction and suction release in the suction unit 17 (suction plate 19) can be switched.

  When the vacuum pump is turned on, suction is performed from the suction plate 19 through the vacuum hose 20 and the suction path, and the sheet member is sucked onto the lower surface (suction surface) of the suction plate 19 (see FIG. 10 and the like).

  In addition, as shown in FIGS. 9 and 10, in this embodiment, the notch portions 21 are provided at the four corners of the suction portion 17 (suction plate 19) so as not to interfere with a holding member 31 (pressing claw 42) described later. Is formed.

  Further, a restricting piece 38 for restricting the amount of lifting of the presser claw 42 is provided above each notch 21. The regulating piece 38 constitutes a regulating member in the present embodiment.

  The restricting piece 38 includes a main body portion that is formed to extend outward in the substantially horizontal direction toward the outside of the suction portion 17, and a cylindrical restricting protrusion 39 that is formed to protrude downward from the distal end side of the main body portion. I have. The restriction piece 38 is formed with an insertion hole 39a through which the upper portion of the shaft portion 40 of the holding member 31 can be inserted so as to penetrate the main body portion and the restriction protrusion 39 in the vertical direction.

  Next, the configuration around the stacking stage S on the turntable 6 will be described in detail. Around the stacking stage S, a holding mechanism 30 for holding the stacked body 4 stacked on the pallet P is provided.

  The holding mechanism 30 includes four holding members 31A, 31B, 31C, and 31D provided corresponding to the four corner portions of the stacking stage S (pallet P, stack 4). The four holding members 31A, 31B, 31C, 31D according to the present embodiment are configured to move in synchronization. Hereinafter, the holding members 31A, 31B, 31C, and 31D may be collectively referred to as the “holding member 31” when it is not necessary to distinguish between them.

  Here, the configuration of the holding member 31 will be described in detail with reference to FIGS. The holding member 31 includes a shaft portion 40 that is rotatable about the vertical direction (the depth direction in FIGS. 4 to 9) and is displaceable in the vertical direction, and a flat surface provided on the upper portion of the shaft portion 40. The base 41 having a regular pentagonal shape and four flat pressing claws 42A, 42B, 42C, and 42D extending from four of the five sides of the base 41 toward the radially outer side of the shaft 40 are provided. ing. Hereinafter, when there is no need to distinguish between them, the pressing claws 42A, 42B, 42C, and 42D may be collectively referred to as “pressing claws 42”. The holding member in the present embodiment is configured by the base 41 and the holding claw 42.

  The shaft portion 40 of the holding member 31 has one side α of two orthogonal sides α and β constituting each corner portion of the four corners of the stacking stage S [in the present embodiment, among the four sides of the stacking stage S, The two sides along the left-right direction in FIG. 3 parallel to the moving direction of the suction portion 17 are defined as sides α. That is, two holding members 31 (shaft portions 40) are arranged one by one along two sides α facing each other across the guide rail 15 of the transport device 14 among the four sides of the stacking stage S. Yes.

  The holding member 31 (shaft portion 40) is configured to be rotatable and vertically movable by a predetermined drive mechanism (see FIG. 10 and the like) described later. Thereby, the holding claw 42 can be swung in the horizontal direction or moved up and down.

  However, in this embodiment, each holding member 31 is configured to rotate only in a predetermined direction. More specifically, among the pair of holding members 31, the holding members 31A and 31C positioned on the left side of the stacked stage S toward the side surface (side α) rotate counterclockwise in plan view, while on the right side. The holding members 31B and 31D that are positioned rotate clockwise in plan view.

  Further, in the present embodiment, the holding member 31 is configured to be able to rotate intermittently by 72 ° (360 ° / 5) in the one direction. Accordingly, the pressing claws 42A, 42B, 42C, and 42D can be sequentially moved from the first stop position X1 to the fifth stop position X5 in this order.

  That is, among the pair of holding members 31, the left holding member 31 </ b> A (31 </ b> C) and the right holding member 31 </ b> B (31 </ b> D) having different rotation directions have the pressing claws 42 </ b> A, 42 </ b> B, 42 </ b> C, 42 </ b> D and the stop position X <b> 1. The arrangement order of X2, X3, X4, and X5 is the reverse direction (see FIG. 9).

  More specifically, the pressing claw 42A is provided on the first side in the counter-rotating direction from the side where the pressing claw 42 is not provided (hereinafter referred to as the blank portion K) among the five sides of the base 41. Further, from the blank portion K, a pressing claw 42B is provided on the second side in the counter-rotating direction, a pressing claw 42C is provided on the third side in the counter-rotating direction, and the fourth side in the counter-rotating direction. A presser claw 42D is provided on the front.

  Accordingly, in the present embodiment, the presser claw 42B is disposed at a 72 ° interval in the circumferential direction of the shaft portion 40 from the presser claw 42A, and the 72 ° interval from the presser claw 42B in the circumferential direction of the shaft portion 40 is arranged. A presser claw 42C is disposed, and a presser claw 42D is disposed with a spacing of 72 ° from the presser claw 42C in the circumferential direction of the shaft portion 40. The presser claw 42D is 144 ° from the presser claw 42D in the circumferential direction of the shaft portion 40. The presser claw 42A is arranged with an interval.

  When the pressing claw 42 stops at the first stop position X1, the extending direction of the pressing claw 42 and the side α of the stacked stage S facing the shaft portion 40 are orthogonal to each other in plan view.

  Further, in each holding member 31, when one pressing claw 42 is stopped at the first stop position X <b> 1, the other three pressing claws 42 are stopped at a position where they do not overlap with the stacked body 4 in plan view. It is configured. That is, when the presser pawl 42 is in the second stop position X2 to the fifth stop position X5, the presser pawl 42 does not overlap the stacked body 4 in plan view.

  Therefore, when pressing the laminated body 4 placed on the lamination stage S (pallet P), one of the two orthogonal sides α and β constituting the corner portion in the vicinity of the corner portion of the lamination stage S. The side of the stacked body 4 parallel to the side α is pressed by one pressing claw 42 stopped at the first stop position X1.

  Further, when the shaft portion 40 moves up and down, the position of the pressing claw 42 in the up and down direction can come into contact with the stacked body 4 and a separated position (see FIGS. 12, 13, etc.) spaced upward from the stacked body 4. It can be displaced to the contact position (see FIGS. 10 and 14 etc.). 10 to 15, the stacked body 4 is illustrated in a simplified manner with a gap between the sheet bodies stacked on the stacking stage S (pallet P).

  Then, when the pressing claw 42 that has pressed the stacked body 4 at the first stop position X1 is moved to the second stop position X2, the first claw 42 is slightly lifted from the stacked body 4 in the first state. A turning movement is made from the stop position X1 to the second stop position X2.

  At this time, in this embodiment, the tip 43 of the presser pawl 42 is at least one side of the two sides constituting each corner of the laminate 4 that the presser pawl 42 presses at the first stop position X1. It turns so as to pass over the other side (side parallel to side β of the lamination stage S) different from (side parallel to side α of the lamination stage S).

  Moreover, in this embodiment, according to the kind of sheet | seat body mounted on the uppermost surface of the laminated body 4 (on the pallet P at the time of lamination | stacking start), the kind of press nail | claw 42A, 42B, 42C, 42D which presses the laminated body 4 Are switched.

  More specifically, when the sheet body placed on the uppermost surface of the laminate 4 is the negative foil 1, the pressing claw 42A is used among the four pressing claws 42A to 42D. Hereinafter, the “holding claw 42A” is referred to as a “negative electrode pressing claw 42A”.

  When the sheet body placed on the uppermost surface of the laminated body 4 is the separator 2 stacked on the upper side of the negative foil 1, the pressing claw 42B is used among the four pressing claws 42A to 42D. Hereinafter, the “holding claws 42B” are referred to as “negative electrode separator pressing claws 42B”.

  When the sheet body placed on the uppermost surface of the laminate 4 is the positive foil 3, the pressing claws 42C are used among the four pressing claws 42A to 42D. Hereinafter, the “holding claw 42C” is referred to as a “positive electrode pressing claw 42C”.

  When the sheet body placed on the uppermost surface of the laminated body 4 is the separator 2 laminated on the upper side of the positive foil 3, the pressing claw 42D is used among the four pressing claws 42A to 42D. Hereinafter, the “holding claw 42D” is referred to as a “positive electrode separator pressing claw 42D”.

  Next, a driving mechanism for driving each holding member 31 will be described with reference to FIGS. Such a driving mechanism constitutes a pressing member driving means in the present embodiment.

  In the present embodiment, the four holding members 31A, 31B, 31C, and 31D are configured to move in synchronization by the interlocking of the four drive mechanisms related to the four holding members 31A, 31B, 31C, and 31D. .

  As shown in FIG. 10 and the like, the shaft portion 40 is supported by a support portion 50 provided on the side surface of the stacking stage S. More specifically, an insertion hole 51 is formed in the support portion 50 along the vertical direction, and the shaft portion 40 is inserted therethrough. Thereby, the shaft part 40 is in a state of being rotatable and vertically movable with respect to the support part 50.

  A cylindrical rotation restricting cam 55 is attached and fixed to the upper surface of the support portion 50 in a state where the shaft portion 40 is inserted. The rotation restricting cam 55 is provided with five U-shaped grooves 56 formed so as to cut out the upper edge portion thereof at five positions at intervals of 72 ° in the circumferential direction.

  Correspondingly, a rotation restricting protrusion 57 that protrudes radially outward and can be inserted into the groove 56 is formed on the peripheral surface of the shaft portion 40. However, the rotation restricting protrusion 57 is provided only at one place in the circumferential direction of the shaft portion 40. Then, when the rotation restricting protrusion 57 is inserted into any one of the five groove portions 56, the pressing claw 42 is stopped at any one of the stop positions X1 to X5.

  Further, the shaft portion 40 is provided with a flange portion 60 that is formed so as to protrude radially outward from the peripheral surface at a position below the support portion 50. A coil spring 61 is attached between the flange portion 60 and the lower surface of the support portion 50. With this configuration, the shaft portion 40 is pushed down, and the laminate 4 can be pressed by the pressing claws 42.

  On the other hand, a cylindrical operation cam 63 is disposed at a position below the shaft portion 40. More specifically, the operating cam 63 is provided at a position below the turntable 6 and is configured to be rotatable and vertically movable with a driving means (not shown) about the vertical direction as an axis. However, the actuating cam 63 and its driving means are provided only at the stacking work positions R2 to R9 and the take-out work position R11 except the take-in work position R1 and the blank positions R10 and R12 that do not require the displacement operation of the holding member 31. ing.

  An insertion hole (not shown) is formed through the turntable 6 below the shaft portion 40 in the vertical direction so as to correspond to the operation cam 63. As a result, the operating cam 63 can appear and retract on the turntable 6, and power can be transmitted to the shaft portion 40.

  The driving means for driving the operating cam 63 includes a direct acting fluid pressure cylinder (vertical driving means) for moving the operating cam 63 up and down, and a rotary cylinder (rotational driving means) for rotating the operating cam 63. ) And the like are examples. Of course, the configuration of the driving means related to the holding member 31 (the operating cam 63) is not limited to this, and other driving means may be adopted.

  In addition, a pair of cam surfaces 64 formed so as to cut out the upper edge portion is provided on the upper portion of the operating cam 63. The pair of cam surfaces 64 are formed at positions facing each other across the axis of the operating cam 63, that is, at an interval of 180 ° in the circumferential direction.

  Each of the cam surfaces 64 is formed in a range corresponding to a central angle of 72 ° in the circumferential direction of the operating cam 63, and in a predetermined rotation direction (for example, the counterclockwise direction for the holding member 31A and the clockwise direction for the holding member 31D). It has a slope shape that slopes down from top to bottom.

  Correspondingly, a pair of actuating pins 65 projecting radially outward and abutting against the cam surface 64 of the actuating cam 63 are provided at the lower end of the shaft portion 40. The pair of operating pins 65 are formed at positions facing each other across the axis of the shaft portion 40, that is, at an interval of 180 ° in the circumferential direction.

  Further, in the present embodiment, the pressing claw 42 is configured to be able to be displaced in the vertical direction with respect to the shaft portion 40. Hereinafter, this configuration will be described in detail. The base portion 41 is formed with an insertion hole (not shown) through which the shaft portion 40 is inserted. The insertion hole has an inner diameter that is substantially the same as the outer diameter of the shaft portion 40. Thereby, the base 41 is in a state in which the base 41 can slide and be displaced along the vertical direction.

  However, the base 41 is in a state in which it cannot be displaced in the circumferential direction of the shaft 40. More specifically, a key groove (not shown) is formed on the upper outer peripheral surface of the shaft portion 40 along the axial direction (vertical direction). Corresponding to this, a key (not shown) is formed on the inner peripheral surface of the base 41 (insertion hole) and projects inward in the radial direction and is formed along the vertical direction. When the key on the base 41 side is fitted in the key groove on the shaft 40 side, the base 41 (pressing claw 42) can be displaced relative to the shaft 40 in the axial direction and in the circumferential direction. It becomes a state incapable of displacement.

  In addition, the shaft portion 40 is provided with a flange portion 67 that protrudes radially outward from the peripheral surface at a position above the rotation restricting protrusion 57. A coil spring 68 is attached between the flange portion 67 and the lower surface of the base portion 41. Due to the urging force of the coil spring 68, the base portion 41 and the pressing claw 42 are pushed upward. The coil spring 68 constitutes an urging means in this embodiment.

  However, a stopper (not shown) that restricts the movement of the key on the base 41 side is provided at the upper end of the key groove on the shaft 40 side. Thereby, the base 41 is normally biased with respect to the stopper by the biasing force of the coil spring 68. That is, when the shaft portion 40 is pushed downward by the biasing force of the coil spring 61 and the stacked body 4 is pressed by the pressing claws 42, the base portion 41 is biased by the stopper.

  Next, the operation of the drive mechanism related to the holding member 31 will be described in detail with reference to FIGS. 10 to 15 in view of the relevance to the sheet body conveyance operation by the suction unit 17.

  When the turntable 6 rotates intermittently and the stacking stage S stops at the stacking work positions R2 to R9, the holding member 31 is stopped.

  While the holding member 31 is stopped (while each pressing claw 42 is stopped at any one of the stop positions X1 to X5), the operation cam 63 is stopped at the reference position below the turntable 6. In this state, the shaft portion 40 is pushed downward by the urging force of the coil spring 61. Thereby, it will be in the state where the layered product 4 was pressed down by presser claw 42 stopped at the 1st stop position X1. In the example shown in FIG. 10, the negative electrode pressing claw 42 </ b> A stopped at the first stop position X <b> 1 is in a state of pressing the laminate 4 (negative electrode foil 1).

  Then, when a new sheet member is conveyed to a position above the stacking stage S by the suction unit 17, the operating cam 63 rises to the vicinity of the lower end portion of the shaft portion 40 and enters a standby state (see FIG. 10).

  Subsequently, the suction portion 17 is lowered, and a new sheet body is placed on the upper surface of the stacked body 4 (see FIG. 11). Here, the edge portion of the sheet body that protrudes outward from the peripheral edge portion of the suction portion 17 is in a state of being placed on the pressing claw 42 that presses the upper surface of the laminated body 4. Further, the upper portion of the shaft portion 40 is inserted into the insertion hole 39a of the restriction piece 38 (regulation protrusion 39) provided in the suction portion 17.

  When the sheet body is placed on the upper surface of the laminated body 4, the operation cam 63 starts to rise. When the operating cam 63 (cam surface 64) contacts the operating pin 65 of the shaft portion 40, the shaft portion 40 is pushed up by the operating cam 63.

  As a result, the pressing claw 42 moves upward, and at the first stop position X1, the pressing claw 42 is separated from the laminated body 4, and the edge of the sheet body placed thereon is lifted. However, since the rotation restricting protrusion 57 is inserted into the groove 56 of the rotation restricting cam 55 at the beginning of rising, the shaft portion 40 does not rotate. Will not change.

  Further, when the shaft portion 40 is pushed up, the shaft portion 40 is inserted into the insertion hole 39a of the restricting piece 38 (the restricting protrusion 39), and the pressing claw 42 (base portion 41) is inserted into the restricting protrusion 39. It contacts the lower end.

  When the shaft portion 40 is further pushed up from here, the biasing force of the coil spring 68 is maintained in a state in which the height position of the pressing claw 42 (base portion 41) is maintained constant by the restriction piece 38 (restriction protrusion 39). Only the shaft portion 40 is pushed up against this. That is, only the shaft portion 40 is pushed up by the operating cam 63 to a predetermined height position while the presser claw 42 (base portion 41) and the shaft portion 40 are relatively displaced in the vertical direction. In the present embodiment, the rising amount of the shaft portion 40 rising by the operating cam 63 is always constant and does not change.

  Further, as shown in FIG. 10, the lower end portion of the regulating piece 38 (regulating projection 39), that is, the presser claw 42, from the position contacting the lower surface of the attracting portion 17 (adsorbing plate 19), that is, the uppermost surface of the laminate 4. The distance T to the position where the (base 41) abuts is constant. Therefore, the height position of the presser claw 42 increases each time a sheet body is newly placed, but the amount of rise of the presser claw 42 from the uppermost surface of the laminate 4 is always constant.

  In addition, although the raising amount of the pressing claw 42 can be arbitrarily set according to the rising amount of the shaft portion 40, the protruding amount of the regulating projection 39, or the like, in this embodiment, from the start of lamination to the end of lamination, The amount of increase is always set to be constant.

  When the shaft portion 40 is pushed up to a predetermined height position, the rotation restricting protrusion 57 comes out of the groove portion 56 of the rotation restricting cam 55 (see FIG. 12). In this state, since the rotation of the shaft portion 40 is allowed, the position of the operating pin 65 moves along the cam surface 64 of the operating cam 63 as the operating cam 63 rises. That is, the shaft portion 40 rotates in a predetermined direction (for example, the counterclockwise direction in the holding member 31A and the clockwise direction in the holding member 31D), and each pressing claw 42 (base portion 41) is in the restricting piece 38 (the restricting protrusion 39). ) In the horizontal direction at the height position where it abuts.

  Thereby, in the 1st stop position X1, while the press nail | claw 42 evacuates from the laminated body 4 without rubbing the upper surface of the laminated body 4, the edge part of the sheet | seat body which has been mounted on the press nail 42 until then Extends straight and overlaps the upper surface of the laminate 4.

  Then, when each presser claw 42 is pivoted by 72 ° in the circumferential direction of the shaft portion 40, the operating pin 65 reaches the lower end of the cam surface 64, and the pivotal movement of each presser claw 42 is stopped (see FIG. 13). .

  Here, when the operating cam 63 is lowered, the shaft portion 40 is pushed downward by the urging force of the coil spring 61. As a result, the rotation restricting protrusion 57 is inserted into the next adjacent groove 56 different from the groove 56 of the rotation restricting cam 55 positioned before the turning movement. That is, each pressing claw 42 descends and stops at the next adjacent stop positions X1 to X5 different from the stop positions X1 to X5 positioned before the turning movement (see FIG. 14).

  Thereby, it will be in the state where the layered product 4 was pressed down by presser claw 42 stopped at the 1st stop position X1. In the example shown in FIG. 14, the negative electrode upper separator pressing claw 42 </ b> B stopped at the first stop position X <b> 1 is in a state of pressing the stacked body 4 (separator 2).

  In this state, the suction by the suction unit 17 is stopped to release the suction of the sheet body. And after the adsorption | suction part 17 spaces apart upwards (refer FIG. 15), the operation cam 63 returns to the reference | standard position below the turntable 6. FIG.

  At the same time as the operating cam 63 returns to the reference position, it is rotated by 72 ° in a predetermined direction (for example, counterclockwise in the holding member 31A and clockwise in the holding member 31D) by the driving means. Thereby, the relative positional relationship in the circumferential direction between the operating cam 63 (cam surface 64) and the operating pin 65 of the shaft portion 40 becomes the positional relationship in the standby state (see FIG. 10).

  By repeating the above series of operations, each presser claw 42 can be swiveled 72 degrees in a predetermined direction. However, in the present embodiment, when the “positive electrode separator pressing claw 42D” is swung from the first stop position X1 during the stacking operation (except after the stacking is completed), the operation pin 65 described above is disposed on the cam surface 64. Prior to the timing of reaching the lower end (see FIG. 13), the actuating cam 63 is rotated 72 ° in a predetermined direction (for example, counterclockwise in the holding member 31A and clockwise in the holding member 31D). As a result, the holding claws 42 can be further turned by 144 ° added 72 ° without being stopped at the position where the holding claws 42 are turned by 72 °.

  In the present embodiment, the timing at which the “positive electrode separator presser claw 42D” is pivoted 144 ° from the first stop position X1 is the stacking work position R2 by the negative electrode foil placing device 11A during the stacking work (except when starting the stacking). There is a case where the negative electrode foil 1 is transported and placed, or the negative foil 1 is transported and placed on the laminating work position R6 by the negative electrode foil placing device 11E.

  When the stack 4 is taken out at the take-out operation position R11 after the completion of the stacking, the “positive electrode separator pressing claw 42D” is moved 72 in the predetermined direction from the first stop position X1 as in the other cases. ° It will be swiveled.

  Next, the flow of the laminating work by the laminating apparatus 5 will be described in detail along the flow of one pallet P. In this embodiment, the laminated body 4 is completed by repeating the lamination | stacking process performed while the turntable 6 rotates 1 time a predetermined number of times.

  First, the pallet P is placed on a predetermined stacking stage S on the turntable 6 located at the input work position R1 by the input work unit 7 at a predetermined timing based on the data table.

  Thereafter, the pallet P moves to the stacking work position R2 by rotating the turntable 6 by 30 °. When the pallet P stops at the stacking work position R2, the negative foil 1 is placed on the pallet P by the negative foil placing device 11A in the interval between the intermittent operations of the turntable 6.

  Here, first, the suction portion 17 of the transport device 14 that sucks the negative foil 1 in the storage portion 12 of the negative foil mounting device 11A is guided onto the pallet P. Subsequently, the adsorbing portion 17 descends while adsorbing the negative electrode foil 1, and the negative electrode foil 1 is placed on the pallet P. And the adsorption | suction part 17 stops in the state which pressed down the negative electrode foil 1 to the downward direction (pallet P).

  When the pallet P is moved to the stacking work position R2, the blank portion K is stopped at the first stop position X1 (pressing position) (see FIG. 8). When the negative foil 1 is placed on the pallet P, each holding member 31 is raised. As a result, the presser claw 42 rises to a height position regulated by the regulating piece 38 of the suction portion 17.

  Subsequently, each holding member 31 rotates, and the negative electrode holding claw 42A is pivoted to the first stop position X1 (see FIG. 4). When the negative electrode pressing claw 42A moves to the first stop position X1, each holding member 31 descends. Thereby, each corner part vicinity of the four corners of the negative electrode foil 1 will be in the state pressed by 42 A of negative electrode pressing nails.

  When the four corners of the negative electrode foil 1 are pressed by the negative electrode pressing claws 42A, the suction by the suction unit 17 is stopped and the suction of the negative electrode foil 1 is released. The same applies to each of the following laminating operations, but the suction stop (sheet body suction release) timing by the suction section 17 does not depend on the timing described above, and the suction section 17 presses the sheet body downward. As long as it is after a state that does not cause misalignment or the like, it may be anytime.

  Thereafter, the suction part 17 is raised and the turntable 6 is rotated by 30 °, whereby the pallet P is moved to the stacking work position R3. During this time, the state in which the vicinity of each corner portion of the negative electrode foil 1 is pressed by the negative electrode pressing claws 42A is maintained.

  When the pallet P stops at the stacking work position R3, the separator 2 is mounted on the stacked body 4 on the pallet P by the separator mounting device 11B in the interval between the intermittent operations of the turntable 6.

  Here, first, the suction portion 17 of the transport device 14 that sucks the separator 2 in the storage portion 12 of the separator mounting device 11B is guided onto the pallet P. Subsequently, the adsorbing portion 17 descends while adsorbing the separator 2, and the separator 2 is placed on the negative electrode foil 1. And the adsorption | suction part 17 stops in the state which pressed the separator 2 below (negative electrode foil 1). Here, the edge portion (protruding portion) of the separator 2 that protrudes outward from the peripheral edge portion of the suction portion 17 is placed on the negative electrode pressing claw 42 </ b> A that holds the negative electrode foil 1.

  When the separator 2 is placed on the negative foil 1, each holding member 31 is raised. As a result, the presser claw 42 rises to a height position regulated by the regulating piece 38 of the suction portion 17. Then, at the first stop position X1, the negative electrode pressing claw 42A is lifted slightly from the negative electrode foil 1 while lifting the edge of the separator 2.

  Subsequently, each holding member 31 rotates, and the negative electrode holding claw 42A is pivoted to the second stop position X2. At the same time, the negative electrode upper separator presser claw 42B pivots from the fifth stop position X5 so as to replace the negative electrode presser claw 42A at the first stop position X1 (see FIG. 5).

  When the negative electrode upper separator pressing claw 42B moves to the first stop position X1, each holding member 31 descends. Thereby, each corner part vicinity of the four corners of the separator 2 will be in the state pressed by the negative electrode separator presser claw 42B. If it will be in this state, the suction by the adsorption | suction part 17 will be stopped and adsorption | suction of the separator 2 will be cancelled | released.

  Thereafter, the suction portion 17 is raised and the turntable 6 is rotated by 30 °, whereby the pallet P is moved to the stacking work position R4. During this time, the state in which the vicinity of each corner portion of the separator 2 is pressed by the negative electrode upper separator pressing claw 42B is maintained.

  When the pallet P stops at the laminating work position R4, the positive foil 3 is placed on the laminated body 4 on the pallet P by the positive foil placing device 11C in the interval between the intermittent operations of the turntable 6.

  Here, first, the suction portion 17 of the transport device 14 that sucks the positive foil 3 in the storage portion 12 of the positive foil mounting device 11C is guided onto the pallet P. Subsequently, the adsorbing portion 17 descends while adsorbing the positive electrode foil 3, and the positive electrode foil 3 is placed on the separator 2. And the adsorption | suction part 17 stops in the state which pressed down the positive electrode foil 3 to the downward direction (separator 2). Here, the edge of the positive foil 3 that protrudes outward from the peripheral edge of the adsorption portion 17 is placed on the negative electrode upper separator pressing claw 42 </ b> B that holds the separator 2.

  When the positive foil 3 is placed on the separator 2, each holding member 31 is raised. As a result, the presser claw 42 rises to a height position regulated by the regulating piece 38 of the suction portion 17. And in the 1st stop position X1, it will be in the state which slightly lifted from the separator 2 while the negative electrode upper separator holding claw 42B lifted the edge of the positive electrode foil 3. FIG.

  Subsequently, each holding member 31 rotates, and the negative electrode upper separator pressing claw 42B is pivoted to the second stop position X2. At the same time, the positive electrode pressing claw 42C pivots from the fifth stop position X5 so as to replace the negative electrode upper separator pressing claw 42B at the first stop position X1 (see FIG. 6).

  When the positive electrode pressing claw 42C moves to the first stop position X1, each holding member 31 descends. Thereby, each corner part vicinity of the four corners of the positive electrode foil 3 will be in the state pressed by the positive electrode pressing nail | claw 42C. If it will be in this state, the suction by the adsorption | suction part 17 will be stopped and adsorption | suction of the positive electrode foil 3 will be cancelled | released.

  Thereafter, the suction part 17 rises and the turntable 6 rotates 30 °, whereby the pallet P moves to the stacking work position R5. During this time, the state in which the vicinity of each corner portion of the positive electrode foil 3 is pressed by the positive electrode pressing claw 42C is maintained.

  When the pallet P stops at the stacking work position R5, the separator 2 is mounted on the stacked body 4 on the pallet P by the separator mounting device 11D in the interval between the intermittent operations of the turntable 6.

  Here, first, the suction portion 17 of the transport device 14 that sucks the separator 2 in the storage portion 12 of the separator mounting device 11D is guided onto the pallet P. Subsequently, the adsorbing unit 17 descends while adsorbing the separator 2, and the separator 2 is placed on the positive foil 3. And the adsorption | suction part 17 stops in the state which pressed the separator 2 below (positive electrode foil 3). Here, the edge portion of the separator 2 that protrudes outward from the peripheral edge portion of the suction portion 17 is placed on the positive electrode pressing claw 42 </ b> C that holds the positive electrode foil 3.

  When the separator 2 is placed on the positive foil 3, each holding member 31 is raised. As a result, the presser claw 42 rises to a height position regulated by the regulating piece 38 of the suction portion 17. Then, at the first stop position X1, the positive electrode pressing claw 42C is lifted slightly from the positive foil 3 while lifting the edge of the separator 2.

  Subsequently, each holding member 31 rotates, and the positive electrode pressing claw 42C is pivoted to the second stop position X2. At the same time, the positive electrode separator presser claw 42D pivots from the fifth stop position X5 so as to be replaced with the positive electrode presser claw 42C at the first stop position X1 (see FIG. 7).

  When the positive separator separator presser claw 42D moves to the first stop position X1, each holding member 31 is lowered. Thereby, each corner part vicinity of the four corners of the separator 2 will be in the state pressed by the positive electrode separator presser claw 42D. If it will be in this state, the suction by the adsorption | suction part 17 will be stopped and adsorption | suction of the separator 2 will be cancelled | released.

  Thereafter, the suction portion 17 is raised and the turntable 6 is rotated by 30 °, whereby the pallet P is moved to the stacking work position R6. During this time, the state where the vicinity of each corner portion of the separator 2 is pressed by the positive electrode separator pressing claw 42D is maintained.

  When the pallet P stops at the laminating work position R6, the negative electrode foil 1 is placed on the laminated body 4 on the pallet P by the negative electrode foil placing device 11E in the interval between the intermittent operations of the turntable 6. Since the work content at the stacking work position R6 is the same as the work content at the stacking work position R2, detailed description thereof is omitted.

  However, in the stacking work position R6, the positive electrode separator presser claw 42D swivels from the first stop position X1 to the second stop position X2 (see FIG. 8) and then does not stop at the second stop position X2. Then, it turns and moves to the third stop position X3 (see FIG. 4). That is, the blank portion K turns and moves from the fifth stop position X5 to the first stop position X1, and then continues to turn to the second stop position X2 without stopping at the first stop position X1. As a result, the negative electrode pressing claw 42A pivots from the fourth stop position X4 to the first stop position X1 without stopping at the fifth stop position X5 so as to be replaced with the blank portion K.

  When the four corners of the negative electrode foil 1 are pressed by the negative electrode holding claws 42A, the adsorption of the negative electrode foil 1 by the adsorption unit 17 is released. Thereafter, the suction portion 17 is raised and the turntable 6 is rotated by 30 °, whereby the pallet P is moved to the stacking work position R7. During this time, the state in which the vicinity of each corner portion of the negative electrode foil 1 is pressed by the negative electrode pressing claws 42A is maintained.

  When the pallet P stops at the stacking work position R7, the separator 2 is mounted on the stacked body 4 on the pallet P by the separator mounting device 11F in the interval between the intermittent operations of the turntable 6. Since the work content at the stacking work position R7 is the same as the work content at the stacking work position R3, detailed description thereof is omitted.

  When the four corners of the separator 2 are pressed by the negative electrode upper separator pressing claws 42B, the suction of the separator 2 by the suction portion 17 is released. Thereafter, the suction part 17 is raised and the turntable 6 is rotated by 30 °, whereby the pallet P is moved to the stacking work position R8. During this time, the state in which the vicinity of each corner portion of the separator 2 is pressed by the negative electrode upper separator pressing claw 42B is maintained.

  When the pallet P stops at the laminating work position R8, the positive foil 3 is placed on the laminated body 4 on the pallet P by the positive foil placing device 11G in the interval between the intermittent operations of the turntable 6. Since the work content at the stacking work position R8 is the same as the work content at the stacking work position R4, detailed description thereof is omitted.

  When the four corners of the positive electrode foil 3 are pressed by the positive electrode pressing claws 42C, the adsorption of the positive electrode foil 3 by the adsorption unit 17 is released. Thereafter, the suction portion 17 is raised and the turntable 6 rotates 30 °, whereby the pallet P moves to the stacking work position R9. During this time, the state in which the vicinity of each corner portion of the positive electrode foil 3 is pressed by the positive electrode pressing claw 42C is maintained.

  When the pallet P stops at the stacking work position R9, the separator 2 is mounted on the stacked body 4 on the pallet P by the separator mounting device 11H in the interval between the intermittent operations of the turntable 6. The work contents at the stacking work position R9 are the same as the work contents at the stacking work position R5, and thus detailed description thereof is omitted.

  When the four corners of the separator 2 are pressed by the positive electrode separator pressing claws 42D, the suction of the separator 2 is released, and the suction portion 17 rises. Thereafter, the turntable 6 rotates intermittently by 30 °, whereby the pallet P sequentially moves to the blank position R10, the unloading work position R11, the blanking position R12, the loading work position R1, and the stacking work position R2. During this time, the holding member 31 does not operate, and the state where the vicinity of each corner portion of the laminate 4 (separator 2) is pressed by the positive electrode separator pressing claw 42D is maintained.

  When the pallet P stops at the stacking work position R2, the stacking process for the second round is started. However, in the stacking process for the second and subsequent rounds, when the positive separator separator presser claw 42D pivots at the stacking operation position R2, the positive separator separator presser pawl 42D moves from the first stop position X1 to the first stop position X1. 3 Turn to the stop position X3. That is, the negative electrode pressing claw 42A pivots to the first stop position X1 without the blank portion K stopping at the first stop position X1.

  Thereafter, the turntable 6 is repeatedly rotated, and the above lamination process is repeated a predetermined number of times, thereby completing the laminate 4 in which the negative electrode foil 1, the separator 2, the positive electrode foil 3, and the separator 2 are repeatedly stacked in order from the bottom. .

  When the pallet P on which the completed laminated body 4 is placed stops at the take-out work position R11, each holding member 31 rotates, and the positive electrode separator presser claw 42D rotates to the second stop position X2. Let As a result, the blank portion K has turned to the first stop position X1 so as to be replaced with the positive electrode separator presser claw 42D. In this state, the pallet P on which the completed laminate 4 is placed is taken out from the turntable 6 by the take-out operation unit 9. The extracted pallet P is sent to the subsequent process by the extraction work unit 9.

  As described in detail above, according to the present embodiment, the negative electrode pressing claw 42A for holding the negative electrode foil 1 and the negative electrode foil are provided, including the conveying device 14 (adsorption unit 17) for conveying and pressing the sheet body to the pallet P. “A negative electrode upper separator holding claw 42B” for holding the upper separator 2 of “1”; “a positive electrode holding claw 42C” for holding the positive foil 3; “a positive electrode separator holding claw 42D” for holding the upper separator 2 of the positive foil 1; Are provided separately.

  With this configuration, the active material (for example, positive electrode active material) attached when the predetermined pressing claw 42 presses one electrode foil (for example, positive electrode foil 3) adheres to the other electrode foil (for example, negative electrode foil 1). There is no fear.

  Further, in the present embodiment, since it is configured to hold all four corners of the sheet body, any of the four corners of the sheet body is turned up and the next sheet body is stacked in a bent state. Can be suppressed.

  Furthermore, in the present embodiment, since the sheet body is pressed by the adsorbing portion 17, all four corners of the sheet body are simultaneously released, and after the sheet body is once flattened, the sheet body is pressed. , Occurrence of wrinkles and bending can be suppressed.

  In addition, since the suction member 17 can uniformly press the sheet body in a wider range, the above-described effects are further enhanced, and the sheet body is less likely to be displaced.

  Further, in this embodiment, when a new sheet body is placed (when the holding claws 42 are switched), the corner portions are arranged in the vicinity of each corner portion of the four corners of the sheet body already placed thereunder. The tip 43 of the presser claw 42 holding one side (side parallel to the side α of the stacking stage S) at the first stop position X1 is at least one of the two sides It is configured to pivot so as to pass over the other side (side parallel to the side β of the stacking stage S).

  As a result, if a downward bending occurs in the corner portion of the newly placed sheet body, or an upward bending occurs in the corner portion of the sheet body already placed thereunder. In this case, the bending can be straightened by the turning operation of the presser claw 42. As a result, reduction in product quality can be suppressed.

  Further, in the present embodiment, according to the stacking order of the sheet bodies, the “negative electrode pressing claw 42A”, the “negative electrode upper separator pressing claw 42B”, the “positive electrode pressing claw 42C”, “the positive electrode upper separator” with respect to the circumferential direction of the shaft portion 40. "Pressing claws 42D" are arranged in this order. Accordingly, each time the sheet bodies are stacked, the sheet bodies can be pressed by the dedicated pressing claws 42 only by sequentially rotating the shaft portion 40 in a predetermined direction. As a result, the operation control can be simplified and the switching operation of the pressing claw 42 can be speeded up so that the production efficiency can be improved.

  In addition, in the present embodiment, a restricting piece 38 that restricts the rising amount of the pressing claw 42 is provided in the suction portion 17 of the transport device 14. As a result, a new sheet is placed on the laminate 4 pressed by the presser claws 42, and when the presser claw 42 is raised, the height position at which the presser claw 42 is raised is set to the height of the laminate 4. It can be adjusted according to the height.

  As a result, for example, even in the initial stage of the stacking process in which the height of the stacked body 4 is low, the relative amount of lifting of the pressing claws 42 with respect to the upper surface of the stacked body 4 can be relatively reduced. Since the raising amount of the pressing claw 42 is reduced, the degree of turning of the edge portion of the sheet placed on the pressing claw 42 can be reduced. That is, the sheet body can be stacked on the stacked body 4 without greatly deforming the sheet body placed on the presser claw 42. As a result, quality improvement of the laminated body 4 can be aimed at.

  Further, in the present embodiment, a restricting piece 38 for restricting the rising amount of the pressing claw 42 is provided in the suction portion 17 of the transport device 14. Thereby, it is realizable with a simpler structure that the raising amount of the press nail | claw 42 always becomes constant with the upper surface of the laminated body 4 as a reference | standard. Further, since the regulating piece 38 operates together with the suction portion 17, it is not necessary to separately provide a height adjusting driving means, and the number of parts can be reduced and the configuration can be simplified.

  Further, since the restricting piece 38 for restricting the rising amount of the presser pawl 42 is provided apart from the turntable 6 that is rotationally driven, wiring such as signal lines is not complicated, and wiring is easy. And simplification. In addition, since the turntable 6 can be reduced in weight, it is possible to suppress a decrease in operability of the turntable 6 and to suppress a decrease in productivity.

  Further, it is not necessary to provide the regulating pieces 38 for regulating the rising amount of the pressing claws 42 corresponding to each of the twelve lamination stages S arranged on the turntable 6, and the eight laminations for performing the lamination operation. Since it suffices to provide them corresponding to the work positions R2 to R9, it is possible to reduce the number of parts, simplify the configuration, and reduce the number of installation locations.

  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 above-described embodiment, the laminated body 4 according to the laminated battery is manufactured by the laminated device 5, but the present invention is not limited thereto, and for example, the laminated device 5 relates to a lithium ion capacitor, an electrolytic capacitor, or the like. It is good also as a structure which manufactures a laminated body.

  (B) The laminate 4 according to the above embodiment is formed by laminating the negative electrode foil 1, the separator 2, the positive electrode foil 3, and the separator 2 in this order so that they are repeatedly stacked in order from the bottom. The order is not limited to this. For example, the positive electrode foil 3, the separator 2, the negative electrode foil 1, and the separator 2 may be repeatedly stacked in order from the bottom.

  Moreover, it is good also as a structure where the separator 2 is located in the lowest layer. That is, the separator 2, the negative electrode foil 1, the separator 2, and the positive foil 3 may be repeatedly stacked in order from the bottom, or the separator 2, the positive foil 3, the separator 2, and the negative foil 1 in the order You may make it pile up repeatedly in order.

  When the stacking order of the sheet bodies is changed, the “negative electrode pressing claw 42A”, the “negative electrode upper separator pressing claw 42B”, the “positive electrode pressing claw 42C” and the “positive electrode upper separator pressing” with respect to the circumferential direction of the shaft portion 40 are used. It is preferable that the arrangement order of the “claws 42D” is also varied according to the stacking order of the sheet bodies.

  (C) The material and shape of the electrode foils 1 and 3 and the separator 2 as the sheet body are not limited to the above embodiment. For example, in the said embodiment, although the separator 2 is comprised with the porous resin film, you may comprise with an insulating nonwoven fabric. Further, as the positive electrode active material, for example, other lithium-containing metal oxides such as lithium nickelate and lithium manganate may be used, and as the negative electrode active material, for example, a carbonaceous material may be used.

  Moreover, in the said embodiment, although it has the structure which conveys and mounts the negative electrode foil 1, the separator 2, and the positive electrode foil 3 to the lamination | stacking stage S as an individual sheet body, respectively, For example, negative electrode foil 1 ( Or what laminated | stacked the positive electrode foil 3) and the separator 2 is good also as a structure conveyed to the lamination | stacking stage S as one sheet body, and mounting.

  (D) The structure of the holding member 31 is not limited to the said embodiment. For example, in the above-described embodiment, the holding member 31 includes four pressing claws 42A, 42B, 42C, and 42D, and these four pressing claws 42 are configured to be unevenly distributed in the circumferential direction of the shaft portion 40, not at equal intervals of 90 °. ing. Instead of this, a plurality of pressing claws may be provided at equal intervals.

  The number of pressing claws 42 is not limited to four, and it is sufficient that one or more pressing claws are provided for one shaft portion 40.

  In the above embodiment, the four holding members 31A, 31B, 31C, and 31D are provided corresponding to the four corners of the stacking stage S (pallet P, stack 4). The arrangement configuration and the number of the members 31 are not limited to this, and other configurations may be adopted.

  Moreover, in the said embodiment, although it has the structure which can be displaced to a horizontal direction by turning the pressing claw 42 centering on the axial part 40, it is not restricted to this, A pressing claw is linearly horizontal. It is good also as a structure which carries out slide displacement.

  (E) The configuration of the turntable 6 and the working units 7 to 9 is not limited to the above embodiment. For example, in the above-described embodiment, twelve stacking stages S are arranged on the turntable 6, and each stacking stage S includes the loading work position R1, the stacking work positions R2 to R9, the blank position R10, the unloading work position R11, and It is configured to intermittently move sequentially to the blank position R12.

  For example, eight stacking stages S may be arranged on the turntable 6, and four stacking operation positions may be provided corresponding to the eight stacking stages S.

  Moreover, in the said embodiment, although it becomes the structure which laminates | stacks a sheet body via the portable lamination | stacking pallet P, as a structure by which the lamination | stacking pallet P is abbreviate | omitted and a sheet | seat body is directly laminated | stacked on the lamination | stacking stage S, it is. Good.

  Further, the present invention may be applied to a configuration in which the turntable 6 is omitted. That is, the present invention may be applied to a system in which the stacking stage S is fixed at a predetermined position and the stacking operation is performed at one place.

  (F) The configuration of the conveying means and the suction means is not limited to the above embodiment. For example, in the above-described embodiment, the adsorption plate (porous adsorption plate) 19 made of a porous material is adopted, but the present invention is not limited to this, and a porous adsorption plate may be adopted.

  Moreover, in the said embodiment, although it has the structure by which the substantially circular arc-shaped notch part 21 was each formed in the four corners of the adsorption | suction part 17 so that it may not interfere with the press nail | claw 42, it replaces with this and is linear. You may employ | adopt the notch part which notched. Further, the notch portion may be omitted, and a suction portion having a substantially rectangular shape in plan view may be employed.

  (G) The structure which concerns on the height adjustment mechanism of the press nail | claw 42 is not limited to the said embodiment. A specific example will be described below with reference to FIG. However, the same parts as those in the above embodiment will not be described in detail by using the same member names and the same reference numerals, and different parts will be mainly described.

  In the example shown in FIG. 16, it extends downward from an upper position separated from the turntable 6 (for example, a main body frame portion provided with the guide rail 15 of the transfer device 14 or a beam portion extending horizontally from the fixed shaft 13). A protruding rod-shaped support portion 80 is provided.

  The support portion 80 is formed with a guide rail 81 having a protrusion along the axial direction. The guide rail 81 is provided with a slide portion 82 that can be displaced in the vertical direction along the guide rail 81.

  The slide portion 82 is provided with a follow-up restricting piece 83 as a follower portion extending from the slide portion 82 toward the holding member 31 in a substantially horizontal direction. The follower restricting piece 83 is for restricting the ascending amount of the pressing claw 42, and is formed so as to penetrate the restricting portion 84 in the vertical direction, and a cylindrical restricting portion 84 that protrudes downward from the front end side thereof. Further, an insertion hole (not shown) through which the upper portion of the shaft portion 40 of the holding member 31 can be inserted is formed.

  A rod-like body 85 is formed to protrude from the support portion 80, and one end of a coil spring 86 is hooked on the rod-like body 85. The other end of the coil spring 86 is hooked on the driven regulation piece 83. As a result, the driven regulating piece 83 is pulled upward by the tensile force of the coil spring 86.

  On the other hand, restricting pieces 87 as restricting members that push the driven restricting pieces 83 downward are provided at the four corners of the suction portion 17 of the transport device 14. When the adsorbing portion 17 is lowered, the regulating piece 87 comes into contact with the driven regulating piece 83, and the driven regulating piece 83 is driven against the tensile force of the coil spring 86 and pushed down to a predetermined height position. .

  By the said structure, the raising amount of the press nail | claw 42 can be controlled on the basis of the upper surface of the laminated body 4 in which the sheet | seat body conveyed by the adsorption | suction part 17 is mounted similarly to the said embodiment. In addition, since it is not necessary to separately provide driving means for moving the regulating piece 87, the number of parts can be reduced and the configuration can be simplified.

  (H) In the above-described embodiment, the regulating member (regulating piece 38 or the like) that regulates the pressing claw 42 corresponding to the eight laminating work positions R2 to R9 (all mounting devices 11A to 11H) that perform the laminating work. Is provided.

  Not only this but only four laminating work positions R2, R4, R6, R8 (the negative foil mounting devices 11A and 11E and the positive foil mounting devices 11C and 11G) that perform the stacking operations related to the electrode foils 1 and 3 are provided. Correspondingly, a configuration in which a regulating member (regulating piece 38 or the like) that regulates the pressing claw 42 may be provided.

  (I) In the above-described embodiment, the lifting / lowering amount of the suction unit 17 is adjusted by the control unit 10 according to the height position of the uppermost surface of the stacked body 4 on the pallet P (sheet stacking amount) based on the data table. It becomes the composition which is done.

  For example, a measurement unit that measures the height of the stacked body 4 may be provided, and the lifting amount of the suction unit 17 may be adjusted based on the actual measurement value by the measurement unit.

  Further, the amount of rise of the regulated presser claw 42 only needs to be a value smaller than the final thickness of the stacked body 4, and does not always have to be maintained at a constant value from the beginning to the end of the stacking process.

  DESCRIPTION OF SYMBOLS 1 ... Negative electrode foil, 2 ... Separator, 3 ... Positive electrode foil, 4 ... Laminated body, 5 ... Laminating apparatus, 6 ... Turntable, 8 ... Laminating operation part, 10 ... Control part, 11 ... Mounting apparatus, 14 ... Conveying apparatus , 17 ... Adsorption part, 30 ... Holding mechanism, 31 ... Holding member, 38 ... Restriction piece, 40 ... Shaft part, 42 ... Holding claw, 68 ... Coil spring, R2-R9 ... Lamination work position, S ... Lamination stage.

Claims (4)

A laminating apparatus for producing a laminate in which a positive electrode foil coated with a positive electrode active material and a negative electrode foil coated with a negative electrode active material are alternately laminated via a separator made of an insulating material. ,
A laminated portion for laminating the positive foil, the negative foil and the separator;
Conveying means capable of conveying and placing the sheet body including the positive electrode foil, the negative electrode foil or the separator to the laminated portion;
A pressing member for pressing the laminated body laminated on the laminated part from above;
The pressing member is configured to be capable of performing a displacement operation in the vertical direction and a displacement operation in the horizontal direction, and the new sheet body is placed on the laminated body pressed by at least the pressing member by the conveying means. In this case, the pressing member is lifted and displaced in the horizontal direction, and then includes a pressing member driving means capable of performing an operation of pressing the laminated body from the newly placed sheet body,
A laminating apparatus characterized in that the amount of rise of the pressing member can be regulated using at least a regulating member provided in the conveying means.   The laminating apparatus according to claim 1, wherein a driven portion that is driven by the regulating member and acts on the pressing member is provided apart from the conveying means. A biasing means for biasing the pressing member upward;
3. The stack according to claim 1, wherein an upward amount of the pressing member can be regulated by regulating upward displacement of the pressing member against an urging force of the urging means. 4. apparatus. Corresponding to the pressing member, a notch is provided in the peripheral edge of the conveying means,
The laminating apparatus according to claim 1, wherein the regulating member is provided in correspondence with the notch.

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