JP5709221B2 - 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 a rectangular sheet-like positive electrode foil coated with a positive electrode active material and a rectangular sheet-like negative electrode foil coated with a negative electrode active material. It is formed by alternately laminating through separators.

  When manufacturing such a laminated body, generally, a method in which sheet bodies such as a positive electrode foil, a negative electrode foil, and a separator are sequentially transported to a predetermined stacking position using a predetermined transport device, and the like are employed.

  Further, when laminating (mounting) the sheet bodies, the edges of the sheet bodies are pressed by pressing claws or the like so as not to cause positional displacement (see, for example, Patent Document 1).

JP 2009-32544 A

  However, as in Patent Document 1, in the configuration in which the positive foil and the negative foil are pressed without distinction by the same pressing claw, the active material attached when the pressing claw presses one electrode foil (for example, the positive foil) ( For example, the positive electrode active material) may adhere to the other electrode foil when pressing the other electrode foil (for example, the negative electrode foil).

  In addition, as in Patent Document 1, in the configuration in which only two diagonal corners of the four corners of the sheet body are pressed, for example, the portions that are not pressed are turned up and the next sheet body is stacked in a bent state. There is a fear.

  When the above-mentioned various problems occur, it may cause a short circuit, resulting in a decrease in product quality.

  The present invention has been made in view of the above circumstances, and has as one of its main purposes to provide a laminating apparatus capable of suppressing a reduction in product quality.

  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 rectangular sheet-shaped positive electrode foil coated with a positive electrode active material and a rectangular sheet-shaped negative electrode foil coated with a negative electrode active material are alternately laminated via a rectangular sheet-shaped separator made of an insulating material. A laminating apparatus for producing a laminate,
The positive foil, negative foil or separator is sequentially sucked by a predetermined suction means and transported to a predetermined stacking position, and the positive foil, negative foil or separator is placed and stacked at the stacking position. Means,
Laminated at the four corners of the positive foil, which is provided corresponding to the four corners of the laminated body laminated at the lamination position, and transported to the lamination position by the conveying means, or under the positive foil. Four first pressing members for pressing the four corners of the separator transported and placed by the transport means to the stacking position from above;
The position of the first pressing member in the horizontal direction can be displaced to at least a retracted position retracted outward from the positive foil or the separator and a pressing position corresponding to the four corners of the positive foil or the separator. Directional displacement means;
The position of the first pressing member in the vertical direction is a first vertical position that can be displaced to at least a spaced position spaced upward from the positive foil or the separator, and a contact position that can contact the positive foil or the separator. Directional displacement means;
Provided corresponding to the four corners of the laminate laminated at the lamination position, and laminated at the four corners of the negative foil or the lower side of the negative foil carried and transported to the lamination position by the conveying means Four second pressing members for pressing the four corners of the separator transported and placed by the transport means to the stacking position from above,
A second horizontal position in which the position of the second pressing member in the horizontal direction can be displaced to at least a retracted position retracted outward from the negative foil or the separator and a pressing position corresponding to the four corners of the negative foil or the separator. Directional displacement means;
Second upper and lower positions displaceable in the vertical direction at least between a position spaced apart from the negative foil or the separator and a contact position capable of contacting the negative foil or the separator. Directional displacement means,
When the positive electrode foil, the negative electrode foil or the separator is newly transported and placed on the stacking position by the transport means, the positively placed positive foil, the negative electrode foil or the separator is pressed by the transport means. Then, after the four first pressing members or the four second pressing members pressing the four corners of the positive electrode foil, the negative electrode foil, or the separator that have already been placed under the retracted, the newly placed A lamination apparatus, wherein the four corners of the positive foil, the negative foil or the separator are pressed by the four first pressing members or the four second pressing members corresponding thereto.

  According to the above-mentioned means 1, it is provided with a conveying means for conveying and pressing a sheet body such as a positive electrode foil, a negative electrode foil, and a separator to a laminating position, and a pressing member (first (1 pressing member) and a pressing member (second pressing member) for pressing the negative electrode foil and the separator stacked below the negative foil, the laminating process can be performed in the following procedure. .

  For example, when a positive electrode foil is newly placed on the upper surface of a laminated body that is being laminated at the lamination position, the four corners of the separator already placed underneath are pressed by the four first pressing members. As it is, the positive foil transported by the transport means is placed on the separator.

  Subsequently, in a state where the placed positive foil is pressed by the conveying means, the four first pressing members holding the four corners of the separator are temporarily retracted, and then the positive foil of the positive foil is again pressed by the four first pressing members. Hold the four corners. Thereafter, the conveying means is separated.

  Next, the separator newly transported by the transport means is placed on the positive foil while the four corners of the positive foil are pressed by the four first pressing members.

  Subsequently, in a state where the placed separator is pressed by the conveying means, the four first pressing members holding the four corners of the positive foil are retracted, and then the four corners of the separator are pressed by the four second pressing members. Thereafter, the conveying means is separated.

  Next, the negative electrode foil conveyed by the conveying means is placed on the separator while the four corners of the separator are pressed by the four second pressing members.

  Subsequently, in a state where the placed negative electrode foil is pressed by the conveying means, the four second pressing members holding the four corners of the separator are once retracted, and then the negative electrode foil is again pressed by the four second pressing members. Hold the four corners.

  With this configuration, according to the present means, the positive electrode active material (or the negative electrode active material) attached when the first pressing member (or the second pressing member) presses the positive electrode foil (or the negative electrode foil). However, there is no possibility of adhering to the negative foil (or positive foil) when the negative foil (or positive foil) is pressed.

  In addition, since it is configured to hold all four corners of the sheet body such as the positive electrode foil, the negative electrode foil, and the separator, any one of the four corners of the sheet body is turned up and the next sheet body is stacked in a bent state. The occurrence of defects can be suppressed.

  As a result, reduction in product quality can be suppressed.

  In order to suppress the occurrence of the above problems, a holding member for positive foil and the like and a holding member for negative foil are provided separately, and the pressing member can be switched without holding the sheet body by the conveying means. When trying to do so, it is necessary to provide two sets for the positive foil and a total of eight pressing members, and two sets for the negative foil and the like, for a total of eight pressing members. It must be controlled and the device may be complicated.

  On the other hand, according to the present means 1, the four pressing members (first pressing member or second pressing member) can be switched while the sheet member is pressed by the conveying means. Therefore, the apparatus can be simplified.

  Furthermore, in the present means 1, the pressing member that presses the positive foil and the pressing member that presses the separator laminated on the lower side can be the same first pressing member, and the pressing member that presses the negative foil. And the pressing member that presses the separator laminated on the lower side thereof can be the same second pressing member, so there is no need to provide a separate pressing member for the separator, further simplifying the device. Can be planned.

  Further, if the pressing member is to be switched without pressing the sheet body by the conveying means, for example, a predetermined sheet body (for example, positive foil) is pressed by the first pressing member at each of the four corners of the sheet body. In another state, another sheet body (for example, a separator) is further stacked thereon, the sheet body is pressed by the second pressing member, and then the first pressing member is retracted. Since the pressing members (the first pressing member and the second pressing member) are simultaneously pressed, wrinkles may occur in the sheet body. Further, when another pressing member approaches the sheet body in a floating state, the edge of the sheet body may turn over and bend. As a result, product quality may be reduced.

  On the other hand, the present means 1 is configured to switch the four pressing members (first pressing member or second pressing member) in a state where the sheet member is pressed by the conveying means. That is, since all the four corners of the sheet body are simultaneously released, the sheet body is once flattened, and then the sheet body is pressed, occurrence of wrinkles and bending can be suppressed.

  In addition, since the sheet member can be uniformly pressed in a wider range by the conveying means, the above-described effects can be further enhanced, and the sheet member can hardly be displaced.

  The “four corners” in this means does not mean only the “corner portion” where two sides of the sheet body exactly meet, but includes concepts such as “near the corner portion” and “four places”. Therefore, even if it is the structure which presses four places a little apart from each corner part of a sheet | seat body, it should just be the structure which can hold | suppress four places simultaneously by at least four pressing members. Even in such a configuration, the same effect as that obtained when the “corner portion” is pressed can be obtained.

Mean 2. The height when the first pressing member and the second pressing member move from the retracted position to the pressing position,
The laminating apparatus according to claim 1, wherein the first pressing member and the second pressing member are set to be higher than a height when returning from the pressing position to the retracted position.

  For example, when switching between the first pressing member and the second pressing member, etc., if the pressing member retracted to the retracted position and the pressing member approaching the pressing position operate at the same height, or to the retracted position When the retracting pressing member operates at a higher position than the pressing member approaching the pressing position, the pressing member approaching the pressing position is caught on the edge of the lifted sheet body, and the edge of the sheet body There is a risk of turning over and bending. As a result, product quality may be reduced.

  On the other hand, according to this means 2, the possibility that the pressing member catches the sheet body is reduced. As a result, bending of the sheet body can be suppressed and product quality can be improved.

Means 3. The amount of increase when the first pressing member or the second pressing member holding the positive foil or the negative foil moves from the pressing position to the retracted position,
The lamination according to means 1 or 2, wherein the first pressing member or the second pressing member that has pressed the separator is set to be larger than the amount of rise when moving from the pressing position to the retracted position. apparatus.

  From the viewpoint of reducing the friction between the holding member and the electrode foil (positive electrode foil or negative electrode foil) as much as possible, when the holding member holding the separator is retracted, it is possible because the electrode foil is placed on it. While it is preferable to move the position as low as possible, when the pressing member holding the electrode foil is retracted, it is preferable to move the position as high as possible because the electrode foil is underneath.

  In this respect, if the means 3 is used, the risk that the electrode foil is rubbed and damaged by the pressing member can be reduced. As a result, product quality can be improved.

  Means 4. The laminating apparatus according to any one of means 1 to 3, wherein the first pressing member and the second pressing member are configured to perform a rectilinear operation.

  If the pressing member is pivoted and displaced between the pressing position and the retracted position, the area of the electrode foil rubbed by the pressing member may increase when the pressing member is switched. is there.

  On the other hand, in this means 4, when the pressing member performs a rectilinear operation, an area where the electrode foil is rubbed by the pressing member is reduced, and damage to the electrode foil can be reduced.

It is a perspective view for demonstrating the structure of a laminated body. It is a top view for demonstrating schematic structure of a lamination apparatus. It is a top view which shows a lamination stand and a holding mechanism. It is a side view of a holding member or the like. It is a rear view, such as a holding member. (A) is a top view of the holding mechanism which shows the state which pressed the sheet | seat body with the presser claw for negative electrodes, (b) is a top view of the holding mechanism which shows the state which pressed the sheet | seat body with the presser claw for positive electrodes. is there. (A) is a schematic diagram which shows the state by which the sheet | seat body was adsorbed and conveyed by the adsorption | suction part, (b) is a schematic diagram which shows the state which mounted the sheet body, (c) is a sheet | seat body. It is a schematic diagram which shows the state hold | suppressed with the press nail | claw. It is a plane schematic diagram for demonstrating the structure of the holding nail | claw which concerns on another embodiment. It is a plane schematic diagram for demonstrating the structure of the holding nail | claw which concerns on another embodiment. It is a plane schematic diagram for demonstrating the structure of the holding nail | claw which concerns on another embodiment. It is a plane schematic diagram for demonstrating the structure of the holding nail | claw which concerns on another embodiment. It is a plane schematic diagram for demonstrating the structure of the holding nail | claw which concerns on another embodiment.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1, a laminated body 4 constituting a laminated battery such as a lithium ion secondary battery has a separator 2, a negative foil 1, a separator 2, and a positive foil 3 that are repeatedly stacked 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.

  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”.

  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.

  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 of the uncoated portions corresponds to a negative electrode tab and a positive electrode tab, and is a region electrically connected to the negative electrode and the positive electrode of the electrode terminal inside the laminated battery.

  FIG. 2 is a schematic configuration diagram (plan view) showing a main part of the stacking apparatus (stacked battery manufacturing apparatus) 10. As shown in the figure, the laminating apparatus 10 includes a separator supply stage 11, an electrode foil supply stage 12, and a lamination stage 13.

  On the separator supply stage 11, the separators 2 stored on a predetermined pallet 50 are supplied one by one by a separator supply unit (not shown) every time the layers are stacked.

  On the electrode foil supply stage 12, the negative electrode foil 1 or the positive electrode foil 3 accumulated in the predetermined pallets 60 and 61 is alternately supplied one by one by an electrode foil supply means (not shown) every time the layers are stacked. The

  The stacking apparatus 10 includes a transport device 14 as a transport unit that transports the separator 2 or the electrode foils 1 and 3 from the separator supply stage 11 or the electrode foil supply stage 12 to the stack stage 13.

  The transfer device 14 is provided at a guide rail 15 provided so as to pass above the stages 11 to 13, a transfer arm 16 supported by the guide rail 15 in a suspended state, and a lower end of the transfer arm 16. And an adsorbing portion 17 as an adsorbing means.

  The transfer arm 16 is provided so as to be movable along the guide rail 15 by a driving means such as a motor (not shown), and can be extended and contracted in the vertical direction (the depth direction in FIG. 2) by the operation of the driving means such as a cylinder. It has become.

  When the transfer arm 16 moves along the guide rail 15, the suction unit 17 also moves along the guide rail 15, and when the transfer arm 16 expands and contracts, the suction unit 17 moves up and down. Yes.

  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. 7).

  A suction path (not shown) communicating with the suction plate 19 is formed inside the base portion 18. A vacuum hose 20 communicating 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 and off by a control device (not shown), so that suction and suction release in the suction portion 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 separator 2 or the electrode foils 1 and 3 are sucked onto the lower surface (suction surface) of the suction plate 19 [ See FIG. 7A].

  On the other hand, on the laminating stage 13, a laminating table 29 for placing and laminating the electrode foils 1 and 3 and the separator 2 is provided (FIGS. 2 and 3). Etc.).

  The stacking table 29 has a substantially rectangular shape in plan view that is slightly larger than the electrode foils 1, 3 and the separator 2, and the electrode foils 1, 3 and the separator 2 have their respective sides with respect to each side of the stacking table 29. It is mounted so as to be substantially parallel.

  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 so as not to coincide with each other, for the sake of convenience, in the other drawings excluding FIG. 1, the electrode foils 1 and 3 and the separator 2 are illustrated in the same rectangular shape.

  Further, a holding mechanism 30 for holding the stacked body 4 (electrode foils 1 and 3 and separator 2) stacked on the stacking table 29 is provided around the stacking table 29.

  As shown in FIG. 3 and the like, the holding mechanism 30 includes four holding members 31 provided corresponding to the corners of the four corners of the stacking base 29 (laminated body 4) and interlocking the four holding members 31. And a drive mechanism 32. The interlocking drive mechanism 32 constitutes the first horizontal direction displacement means and the second horizontal direction displacement means in the present embodiment.

  Here, first, the configuration of the interlocking drive mechanism 32 will be described in detail. The interlocking drive mechanism 32 includes eight pulleys 33 arranged around the stacking table 29 at a predetermined interval so as to surround the stacking table 29, and an annular shape that is hooked on the eight pulleys 33 in an octagonal shape. And a timing belt 34.

  Each pulley 33 has a rotation axis along the vertical direction (the depth direction in FIG. 3), and is provided to be rotatable in the horizontal direction. Of the eight pulleys 33, at least one is connected to a rotation driving means (not shown) such as a servo motor, and is a driving pulley that is rotationally controlled by the rotation driving means, and the rest is via a timing belt 34. The driven pulley is driven by the drive pulley. As the drive pulley 33 rotates, the timing belt 34 can reciprocate along its own longitudinal direction.

  The timing belt 34 is connected to the four holding members 31, and the four holding members 31 can reciprocate along the longitudinal direction of the timing belt 34 in conjunction with the operation of the timing belt 34. . In this embodiment, the reciprocating direction of each holding member 31 is set to a direction inclined by 45 ° with respect to each side of the stacking base 29 (laminated body 4) in plan view.

  Next, the configuration of each holding member 31 will be described in detail. Each holding member 31 includes a main body portion 40 provided so as to face each corner portion of the stacking base 29 (laminated body 4), and a connecting portion 41 connected to the timing belt 34 on the back side of the main body portion 40. And a pair of pressing claws 42A and 42B provided on the upper portion of the main body 40.

  Each of the holding claws 42A and 42B has a flat plate shape that protrudes from the main body portion 40 toward the stacking base 29 side in the horizontal direction, and is configured to be able to hold the corner portions of the four corners of the stacked body 4 from above. Yes.

  In the present embodiment, the type of pressing claws 42 </ b> A and 42 </ b> B for pressing the stacked body 4 is switched according to the type of the sheet placed on the uppermost surface of the stacked body 4 (on the stacking base 29 at the start of stacking). It has become.

  More specifically, when the sheet placed on the uppermost surface of the laminate 4 is the positive foil 3 or the separator 2 laminated on the lower side of the positive foil 3, the pair of pressing claws 42A and 42B Of these, the holding claw 42A located on the left side of the holding member 31 is used. Hereinafter, the pressing claw 42A is referred to as a “positive electrode pressing claw 42A”. The positive claw 42A corresponds to the first pressing member in the present embodiment.

  On the other hand, when the sheet body placed on the uppermost surface of the laminate 4 is the negative electrode foil 3 or the separator 2 laminated on the lower side of the negative electrode foil 1, of the pair of holding claws 42A and 42B, A holding claw 42B located on the right side of the holding member 31 is used. Hereinafter, the pressing claw 42B is referred to as a “negative electrode pressing claw 42B”. The negative electrode holding claw 42B corresponds to the second holding member in the present embodiment.

  As shown in FIGS. 4 and 5, a vertical drive mechanism 45 for moving the holding member 31 up and down is provided at a position below each holding member 31. The vertical drive mechanism 45 constitutes first vertical displacement means and second vertical displacement means in the present embodiment.

  The vertical drive mechanism 45 in the present embodiment includes a disc-shaped eccentric roller 47 provided with a rotation shaft 46 at a position off the center, and a drive unit such as a servo motor that is connected to the rotation shaft 46 and rotates the eccentric roller 47. (Not shown).

  The eccentric roller 47 is disposed so that the rotation shaft 46 extends along the horizontal direction, and the circumferential surface thereof is always in contact with the lower surface of the main body portion 40 of the holding member 31. Then, by rotating the eccentric roller 47 via the rotation shaft 46, the holding member 31 in contact therewith moves up and down. Further, when the holding member 31 moves horizontally, the main body 40 moves horizontally while sliding on the eccentric roller 47.

  By driving and controlling the interlocking drive mechanism 32 and the vertical drive mechanism 45 described above, the holding member 31 can be moved to an arbitrary position in the vertical direction and the horizontal direction within a predetermined range, or can be held at an arbitrary position. .

  As a result, the positions of the pressing claws 42A and 42B in the horizontal direction are the retreated position (see FIG. 3) withdrawn outward from the laminated body 4, and the pressed positions for pressing the corners at the four corners of the laminated body 4 [FIG. ) And (b)], and the positions of the holding claws 42A and 42B in the vertical direction are spaced apart from the laminated body 4 (see FIG. 7C) and the laminated body 4 It is possible to displace to a contact position (see FIGS. 7A to 7C) that can be contacted. 4, 5, and 7, the stacked body 4 is illustrated in a simplified manner with a space between the sheet bodies stacked on the stacking table 29.

  Next, the lamination | stacking procedure of the laminated body 4 using said lamination | stacking apparatus 10 is demonstrated. In the present embodiment, a first separator laminating step for laminating the separator 2, a negative electrode foil laminating step for laminating the negative electrode foil 3 thereon, a second separator laminating step for laminating the separator 2 thereon, and a positive electrode foil 3 thereon The laminated body 4 is manufactured by repeating the positive electrode foil laminating step of laminating a predetermined number of times in this order.

  When the first separator stacking process is started, the suction unit 17 of the transport device 14 is first guided onto the separator supply stage 11. Here, the adsorption unit 17 descends and adsorbs the separator 2 supplied onto the separator supply stage 11.

  Subsequently, the suction portion 17 that sucks the separator 2 is guided onto the stacking stage 29 of the stacking stage 13 [see FIG. 7A]. However, FIG. 7 illustrates a case where a plurality of sheet bodies are already stacked on the stacking table 29 and the stacked body 4 is present.

  Here, the adsorbing unit 17 descends while adsorbing the separator 2 and places the separator 2 on the stacking table 29. And the adsorption | suction part 17 stops in the state which pressed the separator 2 below (stacking base 29).

  At this time, each holding member 31 (pressing claws 42A and 42B) of the holding mechanism 30 is retracted to the retracted position (see FIG. 3).

  When the separator 2 is placed on the stacking base 29, each holding member 31 in the retracted position is raised, and the height positions of the holding claws 42A and 42B are higher than the height position of the placed separator 2. High position.

  Subsequently, each holding member 31 is horizontally moved, and each negative electrode pressing claw 42B is moved from the retracted position to a position above each corner portion of the separator 2 (hereinafter referred to as a pressing position) [see FIG. 6 (a)]. .

  When each negative electrode claw 42B moves to the pressing position, each holding member 31 is lowered. As a result, each of the negative electrode holding claws 42 </ b> B is displaced from a separated position spaced above the separator 2 to a contact position capable of contacting the separator 2. And each corner part of the separator 2 will be in the state pressed by each negative electrode holding claw 42B [refer FIG.4,5, FIG.7 (c)]. However, as in FIG. 7, FIGS. 4 and 5 illustrate a case where a plurality of sheet bodies are already stacked on the stacking base 29 and the stacked body 4 exists.

  When the four corners of the separator 2 are pressed by the negative electrode holding claws 42B, the suction by the suction portion 17 is stopped and the suction of the separator 2 is released. And the adsorption | suction part 17 raises and transfers to a negative electrode foil lamination process.

  The same applies to each of the following stacking steps, but the suction stop (sheet body suction release) timing by the suction section 17 is not related to the above timing, and the suction section 17 presses the sheet body downward, and the sheet body. As long as it is after a state that does not cause misalignment or the like, it may be anytime.

  When the negative electrode foil laminating step is started, the suction unit 17 is guided onto the electrode foil supply stage 12. Here, the adsorption unit 17 descends and adsorbs the negative electrode foil 1 supplied on the electrode foil supply stage 12.

  Subsequently, the adsorbing portion 17 that adsorbs the negative electrode foil 1 is guided onto the stacking stage 29 of the stacking stage 13 (see FIG. 7A).

  Here, the adsorbing unit 17 descends while adsorbing the negative electrode foil 1, and places the negative electrode foil 1 on the separator 2. And the adsorption | suction part 17 stops in the state which pressed down the negative electrode foil 1 to the downward direction (separator 2).

  At this time, the state in which each corner portion of the separator 2 is pressed by the negative electrode holding claws 42B is maintained, and the protruding portion of the negative electrode foil 1 that protrudes outward from the peripheral edge portion of the adsorption portion 17 It will be in the state put on each holding | suppressing nail | claw 42B for negative electrodes [refer FIG.7 (b)].

  When the negative electrode foil 1 is placed on the separator 2, each holding member 31 slightly rises and moves horizontally. As a result, each of the negative electrode holding claws 42 </ b> B is temporarily retracted from the pressing position to the retracted position while being slightly lifted from the separator 2.

  The same applies to each of the following lamination processes, but the height when the pressing claws 42A and 42B move from the retracted position to the pressing position is the height when the pressing claws 42A and 42B return from the pressing position to the retracted position. It is set to be higher than this.

  When each negative electrode holding claw 42B is retracted, the protruding portion of the negative electrode foil 1 extends straight, and the negative electrode foil 1 is in a flat state without undulation. That is, the entire negative electrode foil 1 is properly overlapped with the separator 2.

  As described above, when the entire negative electrode foil 1 is properly overlapped with the separator 2, each holding member 31 at the retracted position is raised, and the height positions of the holding claws 42A and 42B are placed on the placed negative electrode foil. It becomes a position higher than the height position of 1.

  Subsequently, each holding member 31 is moved horizontally, and each negative electrode pressing claw 42B is moved again from the retracted position to a position (pressing position) above each corner portion of the negative electrode foil 1 (see FIG. 6A). .

  When each negative electrode claw 42B moves to the pressing position, each holding member 31 is lowered. As a result, each of the negative electrode holding claws 42 </ b> B is displaced from a spaced position spaced above the negative electrode foil 1 to a contact position where the negative electrode foil 1 can be contacted. And each corner part of the negative electrode foil 1 will be in the state pressed by each negative electrode pressing claw 42B [refer to Drawing 4, 5, and Drawing 7 (c)].

  When the four corners of the negative electrode foil 1 are pressed by the negative electrode holding claws 42B, the suction by the suction portion 17 is stopped and the suction of the negative electrode foil 1 is released. And the adsorption | suction part 17 raises and transfers to a 2nd separator lamination process.

  When the second separator stacking process is started, the suction unit 17 is guided onto the separator supply stage 11. Here, the adsorption unit 17 descends and adsorbs the separator 2 supplied onto the separator supply stage 11.

  Subsequently, the suction portion 17 that sucks the separator 2 is guided onto the stacking stage 29 of the stacking stage 13 [see FIG. 7A].

  Here, the adsorbing unit 17 descends while adsorbing the separator 2 and places the separator 2 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).

  At this time, the state where each corner portion of the negative electrode foil 1 is pressed by the respective negative electrode holding claws 42 </ b> B is maintained, and the protruding portion of the separator 2 that protrudes outward from the peripheral portion of the adsorption portion 17 is the negative electrode foil 1. It will be in the state mounted on each negative electrode pressing claw 42B which is pressing [refer to Drawing 7 (b)].

  When the separator 2 is placed on the negative electrode foil 1, each holding member 31 slightly rises and moves horizontally. As a result, each of the negative electrode holding claws 42 </ b> B is temporarily retracted from the pressing position to the retracted position in a state of being slightly lifted from the negative electrode foil 1.

  The same applies to each of the following lamination processes, but in this embodiment, the amount of rise when the pressing claws 42A and 42B holding the electrode foils 1 and 3 move from the pressing position to the retracted position is determined as the separator 2. The holding claws 42A and 42B that are holding the pressure are set to be larger than the rising amount when moving from the holding position to the retracted position.

  When each of the negative electrode holding claws 42B is retracted, the protruding portion of the separator 2 extends straight, and the separator 2 is in a flat state without undulation. That is, the entire separator 2 is properly overlapped with the negative electrode foil 1.

  As described above, when the separator 2 as a whole is properly overlapped with the negative electrode foil 1, the holding members 31 in the retracted position are raised, and the height positions of the pressing claws 42A and 42B are placed on the placed separator 2. It becomes a position higher than the height position.

  Subsequently, each holding member 31 is moved horizontally, and each positive electrode pressing claw 42A is moved from the retracted position to an upper position (pressing position) of each corner portion of the separator 2 (see FIG. 6B).

  When each positive electrode pressing claw 42A moves to the pressing position, each holding member 31 is lowered. As a result, the positive electrode holding claws 42 </ b> A are displaced from the separated positions spaced above the separator 2 to the contact positions where the separator 2 can be contacted. And each corner part of the separator 2 will be in the state pressed by each positive electrode pressing nail | claw 42A [refer FIG.4, 5, FIG.7 (c)].

  When the four corners of the separator 2 are pressed by the positive electrode holding claws 42A, the suction by the suction portion 17 is stopped and the suction of the separator 2 is released. And the adsorption | suction part 17 raises and transfers to a positive electrode foil lamination process.

  When the positive foil stacking process is started, the suction unit 17 is guided onto the electrode foil supply stage 12. Here, the adsorption unit 17 descends and adsorbs the positive foil 3 supplied on the electrode foil supply stage 12.

  Subsequently, the adsorbing portion 17 that adsorbs the positive foil 3 is guided onto the stacking stage 29 of the stacking stage 13 (see FIG. 7A).

  Here, the adsorbing unit 17 descends while adsorbing the positive foil 3 and places the positive foil 3 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).

  At this time, the state in which each corner portion of the separator 2 is pressed by the respective positive electrode holding claws 42 </ b> A is maintained, and the protruding portion of the positive foil 3 that protrudes outward from the peripheral portion of the suction portion 17 It will be in the state put on each holding | suppressing claw 42A for positive electrodes currently pressed [refer FIG.7 (b)].

  When the positive electrode foil 3 is placed on the separator 2, each holding member 31 rises slightly and moves horizontally. As a result, each positive electrode pressing claw 42 </ b> A is temporarily retracted from the pressing position to the retracted position while being slightly lifted from the separator 2.

  When each positive electrode holding claw 42A is retracted, the protruding portion of the positive foil 3 extends straight, and the positive foil 3 becomes flat without undulation. That is, the entire positive foil 3 is properly overlapped with the separator 2.

  As described above, when the entire positive electrode foil 3 is properly overlapped with the separator 2, each holding member 31 in the retracted position is raised, and the height positions of the pressing claws 42 </ b> A and 42 </ b> B are placed on the placed positive electrode foil. It becomes a position higher than the height position of 3.

  Subsequently, each holding member 31 is moved horizontally, and each positive electrode pressing claw 42A is moved again from the retracted position to the upper position (pressing position) of each corner portion of the positive foil 3 [see FIG. 6 (a)]. .

  When each positive electrode pressing claw 42A moves to the pressing position, each holding member 31 is lowered. As a result, the positive electrode pressing claws 42 </ b> A are displaced from the separated positions spaced above the positive foil 3 to the contact positions where the positive foil 3 can be contacted. And each corner part of the positive electrode foil 3 will be in the state pressed by each positive electrode pressing claw 42A [refer to Drawing 4, 5, and Drawing 7 (c)].

  When the four corners of the positive electrode foil 3 are pressed by the positive electrode pressing claws 42A, the suction by the suction portion 17 is stopped and the suction of the positive foil 3 is released. And the adsorption | suction part 17 raises and it transfers to the 1st separator lamination process of the 2nd order.

  When the second first separator stacking step is started, the suction unit 17 is guided onto the separator supply stage 11. Here, the adsorption unit 17 descends and adsorbs the separator 2 supplied onto the separator supply stage 11.

  Subsequently, the suction portion 17 that sucks the separator 2 is guided onto the stacking stage 29 of the stacking stage 13 [see FIG. 7A].

  Here, the adsorbing unit 17 descends while adsorbing the separator 2 and places the separator 2 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).

  At this time, the state in which each corner portion of the positive electrode foil 3 is pressed by the positive electrode holding claws 42 </ b> A is maintained, and the protruding portion of the separator 2 that protrudes outward from the peripheral portion of the suction portion 17 is the positive electrode foil 3. It will be in the state mounted on each positive electrode pressing claw 42A which is pressing [refer to Drawing 7 (b)].

  When the separator 2 is placed on the positive foil 3, each holding member 31 slightly rises and moves horizontally. Accordingly, each positive electrode pressing claw 42 </ b> A is temporarily retracted from the pressing position to the retracted position while being slightly lifted from the positive electrode foil 3.

  When each positive electrode holding claw 42A is retracted, the protruding portion of the separator 2 extends straight, and the separator 2 becomes flat without undulation. That is, the entire separator 2 is properly overlapped with the positive electrode foil 3.

  Thus, when the separator 2 as a whole overlaps with the positive electrode foil 3 properly, each holding member 31 in the retracted position rises, and the height position of each pressing claw 42A, 42B is placed on the placed separator 2. It becomes a position higher than the height position.

  Subsequently, each holding member 31 is moved horizontally, and each negative electrode pressing claw 42B is moved from the retracted position to a position (pressing position) above each corner portion of the separator 2 (see FIG. 6B).

  When each negative electrode claw 42B moves to the pressing position, each holding member 31 is lowered. As a result, each of the negative electrode holding claws 42 </ b> B is displaced from a separated position spaced above the separator 2 to a contact position capable of contacting the separator 2. And each corner part of the separator 2 will be in the state pressed by each negative electrode holding claw 42B [refer FIG.4,5, FIG.7 (c)].

  When the four corners of the separator 2 are pressed by the negative electrode holding claws 42B, the suction by the suction portion 17 is stopped and the suction of the separator 2 is released. And the adsorption | suction part 17 raises and it transfers to a positive electrode foil lamination process again.

  Thereafter, as described above, by repeating the above various lamination steps a predetermined number of times, it is possible to obtain a laminate 4 in which the separator 2, the negative foil 1, the separator 2, and the positive foil 3 are repeatedly stacked in order from the bottom.

  As described in detail above, according to the present embodiment, the transport device 14 (adsorption unit 17) for transporting and pressing the sheet body to the stacking base 29 is provided, and the positive foil 3 and the separator 2 stacked below the positive foil 3 are provided. A pressing claw (positive electrode claw 42A) for pressing and a pressing claw (negative electrode pressing claw 42B) for pressing the negative electrode foil 1 and the separator 2 laminated on the lower side thereof are separately provided.

  Thus, the positive electrode active material (or the negative electrode active material) attached when the positive electrode pressing claw 42A (or the negative electrode pressing claw 42B) presses the positive electrode foil 3 (or the negative electrode foil 1) becomes the negative electrode foil 1 (or the positive electrode). There is no fear of adhering to the negative foil 1 (or positive foil 3) when pressing the foil 3).

  In addition, since all the four corners of the sheet body are pressed, any of the four corners of the sheet body is turned over, and the occurrence of a problem that the next sheet body is stacked in a bent state can be suppressed. .

  Furthermore, in this embodiment, since the sheet body is pressed by the adsorbing unit 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.

  In addition, in this embodiment, the height when the pressing claws 42A and 42B move from the retracted position to the pressing position is higher than the height when the pressing claws 42A and 42B return from the pressing position to the retracted position. Is set to Thereby, the possibility that the pressing claws 42A and 42B catch the sheet body is reduced. As a result, bending of the sheet body can be suppressed.

  Further, in this embodiment, the holding claws 42A and 42B holding the electrode foils 1 and 3 are moved upward from the holding position to the retracted position, and the holding claws 42A and 42B holding the separator 2 are It is set larger than the rising amount when moving from the pressing position to the retracted position. Thereby, the electrode foils 1 and 3 are rubbed by the retreating pressing claws 42A and 42B, and the risk of receiving damage can be reduced.

  Furthermore, in this embodiment, each pressing claw 42A, 42B is configured to perform a straight-ahead operation. Thereby, compared with the holding claw which performs turning operation | movement, the area which the electrode foils 1 and 3 are rubbed decreases, and the damage given to the electrode foils 1 and 3 can be reduced.

  In addition, in this embodiment, the horizontal movement direction of each holding member 31 is set to a direction inclined by 45 ° with respect to each side of the stacking table 29 (stacked body 4). Thereby, the area of the electrode foils 1 and 3 rubbed against the pressing claws 42A and 42B can be reduced as much as possible.

  As a result, reduction in product quality can be suppressed.

  Further, in the present embodiment, since the four pressing claws 42A and 42B can be switched while the sheet body is pressed by the suction portion 17, the apparatus can be simplified.

  Furthermore, in the present embodiment, the pressing claw that holds the positive foil 3 and the pressing claw that holds the separator 2 laminated on the lower side can be made the same positive pressing claw 42A, and the negative foil 1 The presser claw for pressing the separator 2 and the presser claw for pressing the separator 2 stacked on the lower side thereof can be made the same negative electrode presser claw 42B, so that there is no need to provide a separate presser claw for the separator 2 Further simplification of the apparatus can be achieved.

  In addition, you may implement as follows, for example, without being limited to the description content of embodiment mentioned above.

  (A) In the above-described embodiment, the stacked body 4 related to the stacked battery is manufactured by the stacked device 10, but the present invention is not limited to this, and for example, the stacked device 10 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 separator 2, the negative foil 1, the separator 2, and the positive foil 3 in this order so that they are repeatedly stacked in order from the bottom. The order is not limited to this. For example, the separator 2, the positive foil 3, the separator 2, and the negative foil 1 may be repeatedly stacked in order from the bottom, or the negative foil 1 or the positive foil 3 may be positioned in the lowermost layer.

  (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.

  (D) The configuration of the transport unit and the suction unit 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 which conveys each sheet | seat body supplied to each supply stage 11 and 12 to the lamination | stacking stage 13 using the one conveyance apparatus 14, it replaces with this and each sheet | seat is comprised. A plurality of conveyance devices corresponding to the respective bodies may be prepared, and the sheet bodies may be alternately conveyed to the lamination stage 13 and stacked using the respective conveyance devices. In such a case, the plurality of transfer devices constitute the transfer means in the present embodiment.

  Moreover, in the said embodiment, although the electrode foil supply stage 12 common to the negative electrode foil 1 and the positive electrode foil 3 is provided, it is good not only as this but the structure in which another electrode foil supply stage 12 is provided, respectively. That is, the negative electrode foil supply stage and the positive electrode foil supply stage may be provided separately.

  (E) The configuration of the holding mechanism 30 is not limited to the above embodiment. For example, in the above-described embodiment, the four holding members 31 are configured to be interlocked by the timing belt 34. However, the configuration is not limited thereto, and each holding member 31 may be configured to operate individually.

  Moreover, in the said embodiment, although the horizontal movement direction of each holding member 31 is set to the direction inclined 45 degrees with respect to each side of the laminated body 4 in planar view, the horizontal movement direction of each holding member 31 is set. However, the present invention is not limited to this.

  However, under the holding member 31 in which the positive electrode holding claws 42 </ b> A and the negative electrode holding claws 42 </ b> B are integrally formed, at least the horizontal movement direction of each holding member 31 is inclined with respect to each side of the stacked body 4. This is preferable for simplifying the operation of each holding member 31.

  (F) In the above embodiment, the holding member 31 is configured to be displaceable in the horizontal direction by the interlocking drive mechanism 32 as the horizontal direction displacement means, and is displaced in the vertical direction by the vertical drive mechanism 45 as the vertical direction displacement means. It is configured to be possible. For example, the horizontal direction displacement means and the vertical direction displacement means may be embodied by one drive mechanism. Thereby, it is good also as a structure which can move diagonally with respect to a horizontal surface so that the holding member 31 may also move to an up-down direction, moving to a horizontal direction.

  Further, the vertical drive mechanism 45 according to the above-described embodiment is configured to move the holding member 31 up and down by the eccentric roller 47, but this is not a limitation, and for example, the position of the rotation axis of a normal roller is moved up and down. Accordingly, the holding member 31 may be configured to move up and down.

  (G) In the above-described embodiment, the positive electrode pressing claw 42A and the negative electrode pressing claw 42B are integrally formed as the holding member 31, but the present invention is not limited thereto, and the positive electrode pressing claw 42A and the negative electrode pressing claw 42B are formed. It is good also as a structure by which the nail | claw 42B was each provided separately.

  For example, as shown in FIG. 8, it is good also as a structure provided with the positive electrode claw 70A and the negative electrode claw 70B which operate | move independently corresponding to the four corners of the laminated body 4, respectively.

  In the example shown in FIG. 8, two pressing claws 70 </ b> A and 70 </ b> B are arranged in correspondence with two opposite sides of the four sides of the laminated body 4, and the direction orthogonal to the two sides (FIG. 8), the holding claws 70A, 70B are configured to be horizontally movable linearly. Of course, each of the holding claws 70A and 70B is configured to be movable up and down (in the depth direction of the paper). With this configuration, the laminate 4 can be manufactured in the same procedure as in the above embodiment.

  (H) As shown in the above (g), the operation mode of each presser claw in the configuration in which the presser claw for the positive electrode and the presser claw for the negative electrode are provided separately is as in the example shown in FIG. It is not limited to the slide type that is linearly displaced in the horizontal direction.

  For example, as shown in FIG. 9 to FIG. 12, a configuration in which four positive-type pressing claws 80 </ b> A and four negative-type pressing claws 80 </ b> B that rotate in the horizontal direction corresponding to the four corners of the laminate 4 are provided. It is good. Of course, each pressing claw 80A, 80B is configured to be movable up and down (in the depth direction of the paper). 9 to 12, for convenience, only the vicinity of two corner portions of the stacked body 4 is illustrated.

  In the example shown in FIG. 9, the positive electrode pressing claw 80 </ b> A is provided corresponding to one side of the two sides intersecting at the corner of the laminate 4, and the negative electrode pressing claw 80 </ b> B is set corresponding to the other side. Provided.

  According to such a configuration, as in the above-described embodiment, the positions pressed by the pressing claws 80A and 80B can be made substantially the same position, so that the number of locations where the sheet body is rubbed by the pressing claws 80A and 80B can be minimized.

  In the example shown in FIGS. 10 and 11, the positive electrode pressing claw 80 </ b> A and the negative electrode pressing claw 80 </ b> B are arranged on two opposite sides of the four sides of the laminate 4 so that the same side of the sheet body can be pressed. Correspondingly, two sets of positive claw claw 80A and negative electrode claw 80B are provided, respectively, and the turning angle from the retracted position to the pressed position of each claw 80A, 80B is set to 90 ° or 180 °, respectively. Yes.

  According to such a configuration, it is possible to interlock the positive electrode pressing claw 80A and the negative electrode pressing claw 80B, and it is possible to simplify the control. In the example shown in FIG. 10, the width of the holding mechanism 30 (the width in the left-right direction in FIG. 10) can be suppressed as narrow as possible, and the holding mechanism 30 can be downsized.

  In addition, a motor, a cam mechanism, etc. are mentioned as a drive mechanism which moves the holding claws 80A and 80B. Further, as the turning mode of the example shown in FIG. 11, it is possible to make a mode of rotating 180 degrees in one direction instead of the reciprocating motion as shown (the same applies to the example of FIG. 12 described later). .

  In the example shown in FIG. 12, two sets of positive electrode pressing claws 80 </ b> A are provided corresponding to two opposite sides of the four sides of the laminate 4, and the negative electrode pressing claws 80 </ b> B are stacked. It is provided corresponding to the corners of the four corners of the body 4, and the turning angle from the retracted position of each pressing claw 80A, 80B to the pressing position is set to 180 °. Further, here, the longitudinal directions of the pressing claws 80 </ b> A and 80 </ b> B located at the pressing position are set to directions inclined by 45 ° with respect to the respective sides of the laminate 4. Thereby, the area of the electrode foils 1 and 3 rubbed by the retraction holding claws 80A and 80B can be reduced as much as possible.

  In the case where both the positive and negative electrode holding claws are integrally formed on one rotating shaft, and this is configured to perform a turning operation, when the holding claws are switched, when the holding claws are switched, the retraction position is reached. Since the presser claw that retracts and the presser claw approaching the presser position operate at the same height, the presser member approaching the presser position is caught on the edge of the lifted sheet body, and the edge of the sheet body There is a risk of turning over and bending. Accordingly, when a swivel type presser claw is employed, it is preferable that the positive electrode presser claw and the negative electrode presser claw be provided separately.

  DESCRIPTION OF SYMBOLS 1 ... Negative electrode foil, 2 ... Separator, 3 ... Positive electrode foil, 4 ... Laminated body, 10 ... Laminating apparatus, 13 ... Laminating stage, 14 ... Conveying device, 17 ... Adsorption part, 19 ... Adsorption plate, 29 ... Laminating stand, 30 DESCRIPTION OF SYMBOLS ... Holding mechanism, 31 ... Holding member, 32 ... Interlocking drive mechanism, 42A ... Positive electrode claw, 42B ... Negative electrode claw, 45 ... Vertical drive mechanism.

Claims (4)

A rectangular sheet-shaped positive electrode foil coated with a positive electrode active material and a rectangular sheet-shaped negative electrode foil coated with a negative electrode active material are alternately laminated via a rectangular sheet-shaped separator made of an insulating material. A laminating apparatus for producing a laminate,
The positive foil, negative foil or separator is sequentially sucked by a predetermined suction means and transported to a predetermined stacking position, and the positive foil, negative foil or separator is placed and stacked at the stacking position. Means,
Laminated at the four corners of the positive foil, which is provided corresponding to the four corners of the laminated body laminated at the lamination position, and transported to the lamination position by the conveying means, or under the positive foil. Four first pressing members for pressing the four corners of the separator transported and placed by the transport means to the stacking position from above;
The position of the first pressing member in the horizontal direction can be displaced to at least a retracted position retracted outward from the positive foil or the separator and a pressing position corresponding to the four corners of the positive foil or the separator. Directional displacement means;
The position of the first pressing member in the vertical direction is a first vertical position that can be displaced to at least a spaced position spaced upward from the positive foil or the separator, and a contact position that can contact the positive foil or the separator. Directional displacement means;
Provided corresponding to the four corners of the laminate laminated at the lamination position, and laminated at the four corners of the negative foil or the lower side of the negative foil carried and transported to the lamination position by the conveying means Four second pressing members for pressing the four corners of the separator transported and placed by the transport means to the stacking position from above,
A second horizontal position in which the position of the second pressing member in the horizontal direction can be displaced to at least a retracted position retracted outward from the negative foil or the separator and a pressing position corresponding to the four corners of the negative foil or the separator. Directional displacement means;
Second upper and lower positions displaceable in the vertical direction at least between a position spaced apart from the negative foil or the separator and a contact position capable of contacting the negative foil or the separator. Directional displacement means,
When the positive electrode foil, the negative electrode foil or the separator is newly transported and placed on the stacking position by the transport means, the positively placed positive foil, the negative electrode foil or the separator is pressed by the transport means. Then, after the four first pressing members or the four second pressing members pressing the four corners of the positive electrode foil, the negative electrode foil, or the separator that have already been placed under the retracted, the newly placed A lamination apparatus, wherein the four corners of the positive foil, the negative foil or the separator are pressed by the four first pressing members or the four second pressing members corresponding thereto. The height when the first pressing member and the second pressing member move from the retracted position to the pressing position,
The laminating apparatus according to claim 1, wherein the first pressing member and the second pressing member are set to be higher than a height when returning from the pressing position to the retracted position. The amount of increase when the first pressing member or the second pressing member holding the positive foil or the negative foil moves from the pressing position to the retracted position,
3. The first pressing member or the second pressing member that has pressed the separator is set to be larger than the rising amount when moving from the pressing position to the retracted position. Laminating equipment.   The laminating apparatus according to claim 1, wherein the first pressing member and the second pressing member are configured to perform a rectilinear operation.

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