JP6056698B2 - Laminating magazine and laminating member passage space forming member used for laminating magazine - Google Patents

Description

  The present invention relates to a laminated magazine, a laminated magazine, and a passage space forming member for a laminated member used in the laminated magazine.

  A secondary battery having an electrode assembly in which electrodes and separators are alternately stacked is known. As an apparatus for manufacturing an electrode assembly configured by alternately stacking such electrodes and separators, for example, an electrode stacking apparatus as disclosed in Patent Document 1 is disclosed. A lamination magazine (lamination tray) included in this electrode lamination apparatus has a bowl shape, and a top portion is opened in a rectangular shape. In addition, the laminated magazine has a divergent shape so that it opens greatly from the middle to the top, so that the laminated member can be collected without spilling, and the posture of the laminated member is firmly regulated by the side wall of the bottom Yes.

JP 2012-33282 A

  However, in the laminated magazine included in the conventional electrode laminating apparatus, since the laminated member falls while being guided by the side wall, the frequency of contact between the laminated member and the side wall increases. In particular, the side wall in the vicinity of the bottom portion forms a space that is substantially the same size as the member size of the laminated member, so that the frequency of contact between the laminated member and the side wall becomes higher. For this reason, there is a high possibility that contamination will occur due to a substance applied to the laminated member, and as a result, the performance of the secondary battery having the electrode assembly may be affected.

  Accordingly, an object of the present invention is to provide a laminated magazine capable of suppressing the occurrence of contamination while maintaining alignment accuracy between the laminated members when the laminated members are laminated, and a passage space for the laminated members used in the laminated magazine. It is to provide a forming member.

  A laminated magazine according to one aspect of the present invention is a laminated magazine that accommodates sheet-like laminated members falling from above the accommodation space in a laminated state, and an accommodation space forming portion that forms an accommodation space for accommodating the laminated members And a passage space forming portion that forms a passage space that passes when the laminated member falls into the accommodation space from above the accommodation space, and the passage space forming portion is elastic. The passage space is formed by a member having a shape, and the passage area of the passage space when viewed in plan from the falling direction of the laminated member is formed substantially the same as the design dimension of the laminated member, and The accommodation area is formed so as to include and widen the passage area.

  In the laminated magazine having this configuration, since the passage space forming portion is formed by an elastic member, when the laminated member passes through the passage space, that is, when the laminated member is guided to a predetermined position in the accommodation space. Shock is absorbed. For this reason, generation | occurrence | production of the contamination at the time of guidance to the accommodation space can be suppressed. In addition, since the accommodation space to be laminated after induction is formed wider than the design dimension shape of the laminated member, the contact between the laminated member and the accommodation space forming portion is suppressed, and the occurrence of contamination in the accommodation space is also suppressed. can do. As a result, it is possible to suppress the occurrence of contamination while maintaining the alignment accuracy between the laminated members when the laminated members are laminated.

  Moreover, in one Embodiment, the passage space formation part may be provided in the upper part of the accommodation space formation part so that attachment or detachment is possible.

  In the laminated magazine having this configuration, the laminated member in the laminated state can be easily taken out from the accommodation space by removing the passage space forming portion that narrows the opening area.

  In one embodiment, a plurality of passage space forming portions are provided, and the plurality of passage space forming portions may be integrally formed as a passage space forming portion unit.

  In the laminated magazine having this configuration, a plurality of passage space forming portions can be removed at a time, so that it is possible to further improve the work efficiency when taking out the laminated members in a stacked state from the accommodation space.

  In one embodiment, the accommodation space is provided with a placement portion on which the laminated member is placed so as to be movable in the lamination direction of the laminated member, and the position of the placement portion in the lamination direction is The upper surface of the part or the upper surface of the laminated member placed on the placing part may be adjusted so that the position in the lamination direction is constant.

  In the laminated magazine having this configuration, the position where the laminated member is dropped from above the accommodation space and the position where the laminated member is placed are adjusted to be constant in the lamination direction. Kept constant. For this reason, even when the number of laminated members laminated in the laminated magazine is small, the dropping distance of the laminated members does not become relatively long. As a result, it is possible to further increase the alignment accuracy between the laminated members when the laminated members are laminated in the accommodation space.

  The passage space forming member of the laminated member according to one aspect of the present invention is used in a laminated magazine that accommodates a sheet-like laminated member falling from above the accommodating space in a laminated state, and accommodates the laminated member. And a passage space forming member that forms a passage space that passes when the laminated member falls into the accommodation space from above the accommodation space, and is formed by an elastic member. The passage area of the passage space when viewed in plan from the falling direction of the laminated member is formed to be substantially the same as the design dimension of the laminated member, and the accommodation area of the accommodation space when viewed in plan from the falling direction includes the passage area. It is formed so as to be wide.

  Since the passage space forming member of the laminated member having this configuration is formed of an elastic member, the impact when the laminated member passes through the passage space, that is, when the laminated member is guided to a predetermined position in the accommodation space. Is absorbed. For this reason, generation | occurrence | production of the contamination at the time of guidance to the accommodation space can be suppressed. Moreover, since the accommodation space laminated after the induction is formed wider than the design dimension shape of the laminated member, the contact with the accommodation space forming portion is suppressed, and the occurrence of contamination in the accommodation space is also suppressed. it can. As a result, it is possible to suppress the occurrence of contamination while maintaining the alignment accuracy between the laminated members when the laminated members are laminated.

  ADVANTAGE OF THE INVENTION According to this invention, generation | occurrence | production of a contamination can be suppressed, maintaining the alignment precision between the laminated members at the time of a laminated member being laminated | stacked.

It is a perspective view which shows the lamination | stacking magazine which concerns on one Embodiment. It is sectional drawing in the II-II line of the lamination | stacking magazine shown in FIG. It is a top view of the lamination | stacking magazine shown in FIG. It is the top view which shows a cap part, a front view, and a side view. It is explanatory drawing explaining operation | movement in a lamination | stacking magazine when foil components fall from the upper direction of a storage space. It is a perspective view which shows the cap part unit which concerns on other embodiment, and a perspective view which shows the state by which the cap part unit was attached to the guide pin. It is a perspective view which shows the lamination | stacking magazine which concerns on other embodiment. It is the perspective view and top view which show the cap part of the lamination | stacking magazine which concerns on other embodiment. It is the perspective view and top view which show the cap part of the lamination | stacking magazine which concerns on other embodiment.

  Hereinafter, a laminated magazine 1 according to an embodiment will be described with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. The dimensional ratios in the drawings do not necessarily match those described. For convenience of explanation, XYZ coordinates are set in FIG.

  FIG. 1 is a perspective view showing a laminated magazine 1 according to an embodiment. 2 is a cross-sectional view taken along line II-II of the laminated magazine 1 shown in FIG. FIG. 3 is a plan view of the laminated magazine 1 shown in FIG. The laminated magazine 1 is a part for laminating and accommodating foil parts (sheet-like laminated members) 11 such as electrodes and separators for forming an electrode assembly constituting the power storage device, for example, and an accommodating space S1. The foil parts 11 falling from above are accommodated in a stacked state.

  As shown in FIGS. 1 to 3, the laminated magazine 1 includes a bottom portion 21, a stage (mounting portion) 23, a guide pin (accommodating space forming portion) 25, and a cap portion (passing space forming member) 30. Prepare.

  The bottom portion 21 is a portion that supports the stage 23 on which the foil component 11 is placed, and is formed of, for example, a plate-like member.

  The stage 23 is a portion on which the laminated foil parts 11 are placed, and is provided on the upper surface of the bottom portion 21 so as to be movable in the vertical direction (Z-axis direction / stacking direction). The stage 23 is moved by a lifting mechanism 24 such as an actuator (see FIG. 5) so that the upper surface of the stage 23 or the upper surface of the foil component 11 placed on the stage 23 has a constant position in the Z-axis direction. The axial position is adjusted. In the laminated magazine 1 of the present embodiment, the position in the Z-axis direction of the upper surface of the stage 23 or the upper surface of the foil component 11 placed on the stage 23 detected by position detection means such as a laser sensor is the cap unit 30 described later. The position of the stage 23 in the Z-axis direction is adjusted so as to coincide with the position of the lower end of. The adjustment of the position of the stage 23 in the Z-axis direction may be performed based on information such as the number and weight of the laminated members placed on the stage 23.

  The guide pin 25 is a part that forms an accommodation space S1 that accommodates the foil component 11 in a stacked state after dropping (see FIG. 2). The guide pin 25 forms an accommodation area A1 in a plan view as viewed from the falling direction (Z-axis direction) of the foil component 11 (see FIG. 3). The accommodation area A1 is a rectangular area whose length in the X-axis direction is W1 and whose length in the Y-axis direction is D1. The guide pin 25 is a cylindrical member placed on the upper surface of the bottom portion 21 and can be formed of, for example, stainless steel (SUS).

  The cap part 30 is provided above the accommodating space S1, and is a part that forms a passing space S2 through which the foil component 11 passes when falling from the upper part of the accommodating space S1 to the accommodating space S1 (see FIG. 2). . 4A is a plan view showing the cap portion 30, FIG. 4B is a front view showing the cap portion 30, and FIG. 4C is a side view showing the cap portion 30. As shown in FIGS. 4A to 4C, the cap part 30 includes a cap 31 and a film (passage space forming part) 41.

  The cap 31 has a lower main body portion 31a and an upper main body portion 31c. The lower main body 31a is formed with a through hole 31b for inserting the guide pin 25 therein. The upper main body 31 c has a recess 31 e for fitting the guide pin 25 and a lid 31 d that covers the guide pin 25. In the cap 31 having such a configuration, the guide pin 25 is inserted into the through hole 31b of the lower main body portion 31a, and the head of the guide pin 25 is attached to the lid portion 31d while the guide pin 25 is attached to the concave portion 31e of the upper main body portion 31c. It can be fixed to the guide pin 25 by inserting until it touches. The cap part 30 having the cap 31 is detachable from the guide pin 25. By removing the cap part 30 that narrows the opening region, the laminated foil component 11 can be easily taken out from the accommodation space S1.

  As shown in FIG. 4C, the film 41 is disposed so as to cover the inside of the cap 31 (passing space S2 side). One end of the film 41 in the longitudinal direction is fixed to the upper body portion 31c, and the other end in the longitudinal direction is fixed to the lid portion 31d. The film 41 is made of a flexible and relatively low friction material such as a polyamide film, a fluororesin film, and a polymer polyethylene film.

  The film 41 forms a passage space S2 through which the foil component 11 passes when it falls into the accommodation space S1 from above the accommodation space S1 (see FIG. 2). The film 41 forms a passage area A2 in a plan view as viewed from the falling direction (Z-axis direction) of the foil component 11 (see FIG. 3). The passing area A2 is a rectangular area having a length W2 in the X-axis direction shorter than W1 and a length D2 in the Y-axis direction shorter than D1. Further, the planar shape of the passage space S2 viewed from the Z-axis direction, that is, the passage region A2 is formed so as to substantially coincide with the design dimension shape of the foil component 11. The accommodation area A1 is formed so as to be completely included in the passage area A2 when viewed in plan from the Z-axis direction.

  As shown in FIGS. 3 and 4C, the film 41 is fixed so as to protrude toward the passage space S2. As illustrated in FIG. 2, the passage space S <b> 2 is substantially formed by a portion that is a convex tip of the film 41 in the X-axis direction. The convex shape of the film 41 guides the foil component 11 to the lower accommodation space S1 while maintaining the current convex shape when the dimension of the falling foil component 11 is the same as or smaller than the design dimension shape, In the case where the dimension of the falling foil part 11 is larger than the design dimension and shape, it is desirable that the foil part 11 is formed so as to obtain elasticity that can absorb the tolerance by the weight of the foil part 11. The convex shape of the film 41 can be adjusted as appropriate in consideration of the material and weight of the foil part 11 and the characteristics of the film 41.

  Next, the operation in the laminated magazine 1 when the foil part 11 falls will be described. FIG. 5 is an explanatory diagram for explaining the operation in the laminated magazine 1 when the foil component 11 falls from above the accommodation space S1. First, as shown in FIG. 5, the first foil component 11 is transported above the accommodation space S <b> 1 by the transport device 61 having the suction portion 63. It is assumed that the foil component 11 being conveyed satisfies the maximum and minimum allowable dimensions. When the first foil component 11 is transported by the transport device 61, the stage 23 is adjusted in the Z-axis direction so that the position of the upper surface in the Z-axis direction matches the position of the lower end of the cap portion 30. Is done. The position of the upper surface of the stage 23 is detected by a laser sensor or the like.

  Next, the transport device 61 drops the foil component 11 at a predetermined position in the XY plane and the Z-axis direction above the accommodation space S1. The foil component 11 that has left the suction portion 63 of the transport device 61 falls downward and contacts the film 41. Here, when the foil part 11 is the same as or smaller than the design dimension shape, the foil part 11 passes through the passage space S <b> 2 along the film 41 and reaches the upper surface of the stage 23. That is, the foil component 11 is guided to a predetermined position on the upper surface of the stage 23 in a plan view viewed from the Z-axis direction by the film 41. As a result, the foil component 11 is placed at a predetermined position on the upper surface of the stage 23.

  Even when the foil part 11 is larger than the design size and shape, the film 41 absorbs the tolerance. Also in this case, the foil component 11 is guided by the film 41 to a predetermined position on the upper surface of the stage 23 in a plan view as viewed from the Z-axis direction.

  Next, the second foil component 11 is conveyed by the conveying device 61 above the accommodation space S1. When the second foil component 11 is conveyed above the accommodation space S1, the stage 23 has the upper surface of the foil component 11 placed on the upper surface thereof in the Z-axis direction positioned at the lower end of the cap portion 30. The position in the Z-axis direction is adjusted so as to match. That is, the position of the stage 23 in the Z-axis direction is adjusted so that the thickness of the foil component 11 is reduced by one. With respect to the stage 23 in such a state, the transport device 61 drops the foil component 11 at a predetermined position in the XY plane and the Z-axis direction above the accommodation space S1. The foil component 11 that has left the suction portion 63 of the transport device 61 is guided to the film 41 in the same manner as the first foil component 11 and reaches the upper surface of the first foil component 11. By repeating such a series of operations, the foil component 11 is stacked in the accommodation space S1.

  In the laminated magazine 1 of the above embodiment, since the film 41 of the cap part 30 is formed of an elastic member, when the foil part 11 passes through the passage space S2, that is, the foil part to a predetermined position on the stage 23. The impact when 11 is guided is absorbed. For this reason, generation | occurrence | production of the contamination at the time of guidance to the stage 23 of the foil component 11 can be suppressed. Moreover, since the accommodation space S1 laminated after the induction is formed wider than the design dimension of the foil part 11, the contact with the guide pin 25 is suppressed, and the occurrence of contamination in the accommodation space S1 is also suppressed. Can do. As a result, the occurrence of contamination can be suppressed while maintaining the alignment accuracy between the foil components 11 when the foil components 11 are stacked.

  In the stacked magazine 1 of the above embodiment, the upper surface of the stage 23 or the upper surface of the foil component 11 is positioned at the upper portion of the accommodation space S1 or the lower end of the cap portion 30 (passing space S2) in the horizontal direction by the vertical movement of the stage 23. Has been adjusted to. Thereby, as shown in FIG. 5, since the position L2 where the conveying device 61 drops the foil part 11 and the position L1 where the foil part 11 is placed are always constant, the fall distance H of the foil part 11 is Kept constant. In other words, even when there are few foil parts 11 (foil parts 11 placed on the stage 23) laminated on the lamination magazine 1, the stage 23 is lifted from the bottom 21 in the Z-axis direction. The fall distance of the foil component 11 that has passed through the passage space S2 is kept short. Thereby, the alignment precision between the foil components 11 at the time of laminating | stacking the foil components 11 in accommodation space S1 can be improved.

  Although one embodiment has been described above, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the invention.

  In the laminated magazine 1 of the above embodiment, each of the cap portions 30 has been described as being detachably provided on the upper end of the guide pin 25, but the present invention is not limited to this. For example, it may be integrally formed on the upper end of the guide pin 25 so as not to be detachable.

  Moreover, the cap part 30 can also be comprised like the cap part unit (passage space formation part unit) 50 shown below. FIG. 6 is a perspective view showing a cap unit 50 according to another embodiment, and is a perspective view showing a state where the cap unit 50 is attached to the guide pin 25. For example, as shown in FIG. 6A, the plurality of cap portions 30 may be integrally configured as a cap portion unit 50 by being fixed to the connecting portion 51 with screws or the like. That is, the laminated magazine 101 may include a cap unit 50 in which a plurality of cap units 30 are integrally formed.

  In the laminated magazine 101 having this configuration, the plurality of cap portions 30 can be removed at a time, so that it is possible to increase the working efficiency when taking out the laminated foil parts 11 from the accommodation space S1.

  Moreover, in the laminated magazine 1 of the said embodiment, although the example in which the accommodation space formation part was formed with the guide pin 25 was given and demonstrated, this invention is not limited to this. FIG. 7 is a perspective view showing a laminated magazine 201 according to another embodiment. For example, as illustrated in FIG. 7, the storage space forming portion may be configured as a stacked magazine 201 formed as a side wall 125. The cap part 130 in this case may have the cap 131 and the film 141 which can be fitted to the head part 125a of the side wall 125, for example, as shown in FIG. The passage space S2 of the foil part 11 formed by the film 141 is the same as the passage space S2 formed by the film 41 of the laminated magazine 1 of the above embodiment. In addition, the cap portion 130 is not structured to be attached along the longitudinal direction of the side wall 125, but a part of the cap portions 30 having a shape as shown in FIG. 4 is attached to the head portion 125 a of the side wall 125. It may be improved and provided so as to be detachable.

  Moreover, in the laminated magazines 1, 101, and 201 of the above embodiment, the example in which the passage space forming portion is formed by the films 41 and 141 has been described, but the present invention is not limited to this. FIGS. 8A and 8B and FIGS. 9A and 9B are a perspective view and a plan view showing a cap portion of a laminated magazine according to another embodiment, respectively.

For example, the passage space S2 of the foil component 11 may be formed by providing a cap 231 as a passage space forming portion as shown in FIG. The cap 231 can be formed of, for example, elastic silicon rubber that has been surface-treated with a DLC (Diamond-Like Carbon) coat. For example, the cap 231 can be attached to and detached from the guide pin 25 by providing a hollow portion for insertion formed in the outer diameter size of the guide pin 25. The cap 231 may be formed of a thin metal plate that has been surface-treated by coating a solid lubricant such as graphite, molybdenum disulfide (MoS ₂ ), hexagonal boron nitride, or Teflon (registered trademark).

  Even in this case, the passage space S2 is formed by the cap 231 and is formed by the guide pins 25 as shown in FIGS. 8A and 8B, similarly to the laminated magazines 1, 101, 201 of the above embodiment. The width W21 and the depth D21 of the passage space S2 smaller than the width W1 and the depth D1 of the accommodation space S1 to be formed can be formed.

  Further, for example, the passage space S <b> 2 of the foil component 11 may be formed by providing a cap 331 as a passage space forming portion as shown in FIG. 9A at the upper end of the guide pin 25. The cap 331 is different from the cap 231 in that the lower end 331a has a larger diameter than the upper end 331b.

  Even in this case, the passage space S2 is formed by the cap 331 as in the stacked magazines 1, 101, 201 of the above embodiment, and is formed by the guide pins 25 as shown in FIGS. 9 (A) and 9 (B). The width W31 and the depth D31 of the passage space S2 smaller than the width W1 and the depth D1 of the accommodation space S1 to be formed can be formed.

  DESCRIPTION OF SYMBOLS 1,101,201 ... Lamination | stacking magazine, 11 ... Foil component (sheet-like lamination | stacking member), 21 ... Bottom part, 23 ... Stage (mounting part), 25 ... Guide pin, 30 ... Cap part, 31 ... Cap, 31a ... Lower body part, 31b ... through hole, 31c ... upper body part, 31d ... lid part, 31e ... recess, 41,141 ... film (passing space forming part), 50 ... cap part unit (passing space forming part unit), 51 DESCRIPTION OF SYMBOLS Connection part 61 ... Conveying device 63 ... Adsorption part 125 ... Side wall (accommodating space forming part), 130 ... Cap part, 131 ... Cap, 141 ... Film, 231, 331 ... Cap (Passing space forming part, Passing space) Forming member), A1... Accommodation area, A2... Passage area, S1.

Claims (4)

In a lamination magazine that accommodates sheet-like lamination members falling from above the accommodation space in a laminated state,
A housing space forming portion for forming the housing space for housing the laminated member;
A passage space forming portion that is provided above the accommodation space, and that forms a passage space through which the laminated member passes when dropping from above the accommodation space into the accommodation space,
The passage space forming portion is formed of an elastic member, and the passage area of the passage space in plan view from the falling direction of the laminated member is formed substantially the same as the design dimension of the laminated member, and A stacked magazine, wherein a storage area of the storage space in plan view from the falling direction is formed so as to include and widen the passage area, and is detachably provided on an upper portion of the storage space forming portion . A plurality of the passage space forming portions are provided,
The stacked magazine according to claim 1, wherein the plurality of passage space forming portions are integrally formed as a passage space forming portion unit. The accommodation space is provided with a placement portion on which the laminated member is placed so as to be movable in the lamination direction of the laminated member,
The position in the stacking direction of the mounting section is adjusted so that the position in the stacking direction of the upper surface of the mounting section or the upper surface of the stacked member mounted on the mounting section is constant, The laminated magazine according to claim 1 or 2 . It is used for a lamination magazine that accommodates sheet-like laminated members falling from above the accommodation space in a laminated state, and is provided above the accommodation space forming portion that forms the accommodation space for accommodating the lamination members, A passage space forming member that forms a passage space through which the laminated member passes when falling from above the accommodation space into the accommodation space,
A cap that can be fitted to the upper end of the housing space forming portion;
An elastic member provided on the cap and forming the passage space ;
The passage area of the passage space in plan view from the falling direction of the laminated member is formed substantially the same as the design dimension of the laminated member, and the accommodation area of the accommodation space in plan view from the falling direction is the A passing space forming member of a laminated member, which is formed so as to include and widen a passing region.

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