Stacked body holding device

Abstract

The present application provides a kind of even if the number of lamination increases also has high lamination precision lamination holding device.The lamination holding device of the present application is the lamination holding device used when lamination is carried out to the sheet component transported, it has: lamination table, it lamination sheet component and can move along the direction of up and down;Pressing mechanism, lamination table is pressed to upper side;Clamping mechanism, the sheet component and lamination table are clamped and kept to the lamination;And limit mechanism, it is separated from clamping mechanism and limits the movement of lamination table to upper side, limit mechanism has the wedge of variable angle, limit mechanism is configured to, according to the balance of spring that changes with the number of lamination, the angle of wedge continuously or in a stepped manner changes, and / or also has: movable mechanism, it has the seat with sawtooth fixed to lamination table and moves up and down with lamination table, movable claw imitates the shape of seat, every time lamination 1 sheet component, movable claw is engaged with seat and locked.

Description

Technical Field

[0001] This invention relates to a laminate holding device, and more particularly to a laminate holding device used when laminating conveyed sheet components. Background Technology

[0002] In the case of sheet components such as laminated sheet electrodes, a laminate holding device as disclosed in Patent Document 1 is used, for example. This laminate holding device has the following structure: in order to hold and retain the sheet component laminated on the lamination table by a pair of clamping mechanisms and the lamination table facing each other, a pressing mechanism presses the lamination table from below.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2021-30566 Summary of the Invention

[0004] In the laminate holding device of Patent Document 1, when a new sheet component is laminated onto an existing laminate, the holding state of the sheet component by the clamping mechanism needs to be released, at which point the lamination stage rises. Therefore, this laminate holding device maintains the holding state of the sheet component by one of a pair of clamping mechanisms while simultaneously releasing the holding state of the sheet component by the other clamping mechanism. Then, one end of the new sheet component is placed on the sheet component on the side of the other clamping mechanism and held by that other clamping mechanism.

[0005] Then, the holding state of the sheet component by one clamping mechanism is released, and the other end of the new sheet component is placed on the sheet component on the side of the clamping mechanism and held by one clamping mechanism. Thus, the new sheet component is stacked on top of the stacked sheet components.

[0006] In this type of laminate holding device, when a new sheet component is stacked on top of an existing stack, the opposing pair of clamping mechanisms need to operate independently, or the new sheet component needs to be placed at each opposing end. Therefore, the sheet component stacking operation becomes complex. Furthermore, the stacking platform in this type of laminate holding device has a structure where it is supported by upward pressing mechanisms such as tension springs, which leads to a decrease in stacking accuracy as the number of stacks increases.

[0007] The present invention was made in view of this problem and provides a stack holding device that maintains high stacking accuracy even as the number of stacks increases.

[0008] The laminate holding device according to one aspect of the present invention is a laminate holding device used when stacking conveyed sheet components, and includes:

[0009] A stacking platform that stacks the sheet components and is movable in the vertical direction;

[0010] The pressing mechanism presses the stacking platform upwards;

[0011] A clamping mechanism that clamps and holds the stacked sheet components to the stacking table; and

[0012] A limiting mechanism, separate from the clamping mechanism, restricts the upward movement of the stacking platform.

[0013] The laminate holding device of the present invention is used when stacking conveyed sheet components. It comprises: a stacking platform for stacking the sheet components and movable in a vertical direction; a pressing mechanism for pressing the stacking platform upwards; a clamping mechanism for clamping and holding the stacked sheet components to the stacking platform; and a limiting mechanism separate from the clamping mechanism to limit the upward movement of the stacking platform. The limiting mechanism has a wedge with a variable angle, configured such that the angle of the wedge changes continuously or in stages according to the balance of a spring that varies with the number of stacks. It also includes: a movable mechanism comprising a serrated support fixed to the stacking platform and movable vertically together with the stacking platform, and a movable claw shaped like the support. Each time one sheet component is stacked, the movable claw engages and locks with the support. Thus, a laminate holding device with high stacking accuracy can be provided even as the number of stacks increases.

[0014] Furthermore, the spacing of the serrations of the bearing can be greater than the thickness of the sheet component, and the mounting can be performed by offsetting the thickness of the sheet component. Therefore, as the thickness of the sheet component decreases, the engagement of the movable claw with the bearing becomes shallower, thus suppressing slippage.

[0015] Furthermore, the movable claw 8b engages and locks with the bearing 8a at a position where the stacking platform returns only a small amount, which can be the thickness of 1 to 5 of the sheet components S. Therefore, the stacking platform 3 will not fully return from the pressed position, thus suppressing clamping loosening caused by excessive external pressure.

[0016] Invention Effects

[0017] According to the present invention, a stack holding device can be provided that maintains high stacking accuracy even as the number of stacks increases. Attached Figure Description

[0018] Figure 1 This is a perspective view showing the laminate holding device of the present invention.

[0019] Figure 2 This is a diagram showing the structure of the movable mechanism of the laminate holding device of the present invention.

[0020] Figure 3This is a diagram showing the structure of the movable mechanism of the laminate holding device of the present invention.

[0021] Figure 4 This is a diagram illustrating the structure of the limiting mechanism of the laminate holding device of the present invention. Detailed Implementation

[0022] Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments. Furthermore, for the sake of clarity, the following description and drawings have been appropriately simplified.

[0023] use Figure 1 The structure of the laminate holding device 1 of the present invention will be described. Figure 1 This is a perspective view showing the laminate holding device 1 of the present invention. The laminate holding device 1 of the present invention is applicable, for example, when laminating sheet components such as sheet electrodes.

[0024] In the following description, a three-dimensional (XYZ) coordinate system will be used for clarity. Specifically, the X-axis + side represents the front side of the stack holding device 1, and the X-axis - side represents the rear side of the stack holding device 1. The Y-axis + side represents the left side of the stack holding device 1, and the Y-axis - side represents the right side of the stack holding device 1. The Z-axis + side represents the top side of the stack holding device 1, and the Z-axis - side represents the bottom side of the stack holding device 1.

[0025] The stack holding device 1 includes a base 2, a stacking platform 3, legs 4, a pressing mechanism 5, a clamping mechanism 6, and a limiting mechanism 7. The base 2, when viewed from the Z-axis direction, is a roughly rectangular magnetic levitation linear structure, configured to levitate on a reference plane F (see reference). Figure 4 State shifts on (a) and (b).

[0026] The stacking platform 3 is positioned relative to the base 2 on the Z-axis + side, and is movable in the vertical direction (Z-axis + side and Z-axis - side), and is a roughly rectangular plate when viewed from the Z-axis direction. Legs 4 support the stacking platform 3 in a manner that allows it to move along the Z-axis direction, and are positioned near the four corners of the stacking platform 3 when viewed from the Z-axis direction.

[0027] Leg 4 has a guide mechanism including a support column and a linear guide rail extending from base 2 toward the Z-axis + side. The guide mechanism includes: a guide rail extending along the Z-axis direction and fixed to the support column; and a slider that can move along the guide rail in the Z-axis direction and is fixed to the Z-axis - end of the stacking stage 3. Thus, the stacking stage 3 can move along the Z-axis direction.

[0028] The pressing mechanism 5 presses the stacking stage 3 toward the Z-axis + side. The pressing mechanism 5 has an elastic body such as a spring. The Z-axis - end of the pressing mechanism 5 can rotate around a rotation axis extending in the X-axis direction and be fixed to the base 2. The Z-axis + end of the pressing mechanism 5 can rotate around a rotation axis extending in the X-axis direction and be fixed to the stacking stage 3.

[0029] Clamping mechanism 6 holds sheet component S (reference) Figure 4 (a) and (b) are clamped and held by the stacking platform 3. The clamping mechanism 6 includes a clamping arm 6a, a clamping rod 6b, a sliding mechanism 6c, a tilting mechanism 6d, and a spring 6e.

[0030] In order to clamp and hold the sheet component S with the stacking stage 3, the clamping arm 6a contacts the sheet component S closest to the Z-axis+ side from the Z-axis+ side. Multiple clamping arms 6a are arranged at intervals in the Y-axis direction (e.g., 4).

[0031] The clamping rod 6b extends along the Y-axis and is positioned on the X-axis side relative to the stacking stage 3 when viewed from the Z-axis direction. The X-axis side end of the clamping arm 6a is fixed to the clamping rod 6b. The clamping rod 6b is fixed to a slider that can move along the Z-axis, and this slider is fixed to a guide on the base 2 in a manner that allows it to swing about a swing axis extending along the Y-axis in the tilting mechanism 6d.

[0032] The sliding mechanism 6c moves the clamping arm 6a and the clamping rod 6b along the Z-axis direction via the slider. In the sliding mechanism 6c, with the long axis portion of the cam rotatably supported on the guide and extending along the Y-axis direction in contact with the arm extending from the slider towards the Z-axis, the slider is pressed to its closest point to the Z-axis. Thus, the clamping arm 6a and the clamping rod 6b are positioned closest to the Z-axis.

[0033] At this time, the arm of the sliding mechanism 6c is forced towards the Z-axis+ side by the elastic body. In the sliding mechanism 6c, the roller follower of the operating lever fixed to the end of the rotating shaft contacts the sliding fixed cam of the first position on the reference surface F, on which the new sheet component is stacked. When viewed from the Y-axis+ side, the cam rotates clockwise via the operating lever.

[0034] As a result, the pressure on the Z-axis side of the slider caused by the cam is relaxed, and the slider is pressed towards the Z-axis+ side by the biasing force of the elastic body through the arm of the sliding mechanism 6c, and the clamping arm 6a and the clamping rod 6b move towards the Z-axis+ side.

[0035] In the sliding mechanism 6c, the rotation axis of the sliding mechanism 6c is subjected to force by other elastic bodies to restore the state in which the long axis portion of the cam is in contact with the arm. When the stacked body holding device 1 passes through the first position of the reference plane F, it is restored to the state in which the long axis portion of the cam is in contact with the arm, and returns to the state in which the clamping arm 6a and the clamping rod 6b are arranged closest to the Z-axis side.

[0036] The tilting mechanism 6d causes the clamping arm 6a and the clamping rod 6b to swing about the Y-axis. In the tilting mechanism 6d, for example, the clamping rod 6b is fixed via an arm to a swing shaft that is rotatably supported on the slider and extends in the Y-axis direction.

[0037] In the tilting mechanism 6d, with the long-diameter portion of a cam on a rotating shaft that is rotatably supported on a slider and extends along the Y-axis contacting the arm, when viewed from the Y-axis+ side, the clamping arm 6a and the clamping rod 6b rotate counterclockwise via the arm. Thus, when viewed from the Z-axis direction, the clamping arm 6a is positioned approximately parallel to the XY plane within the configuration area of ​​the stacking stage 3.

[0038] At this time, when viewed from the Y-axis+ side, the arm of the tilting mechanism 6d is subjected to a clockwise force by the elastic body. In the tilting mechanism 6d, the roller follower of the operating lever fixed to the end of the rotating shaft contacts the tilting fixed cam set at the first position on the reference plane F. When viewed from the Y-axis+ side, the cam rotates clockwise via the operating lever.

[0039] Therefore, when viewed from the Y-axis+ side, the cam's counterclockwise pressure on the arm relaxes, and the clamping arm 6a and clamping rod 6b swing clockwise under the biasing force of the elastic body. When viewed from the Z-axis direction, the clamping arm 6a retracts from the configuration area of ​​the stacking stage 3.

[0040] In the tilting mechanism 6d, the rotation axis of the tilting mechanism 6d is subjected to force by other elastic bodies to restore the state in which the long axis portion of the cam contacts the arm. When the stack holding device 1 passes the first position of the reference plane F, it is restored to the state in which the long axis portion of the cam contacts the arm, and returns to the state in which the clamping arm 6a is arranged approximately parallel to the XY plane in the configuration area of ​​the stacking stage 3 when viewed from the Z-axis+ side.

[0041] Thus, through the sliding mechanism 6c and the tilting mechanism 6d, the clamping arm 6a and the clamping rod 6b can move in the Z-axis direction and swing around the Y-axis.

[0042] The limiting mechanism 7 is set separately from the clamping mechanism 6 to limit the movement of the stacking stage 3 toward the Z-axis + side. Figure 4 (a) and (b) are diagrams illustrating the structure of the limiting mechanism 7 of the laminate holding device of the present invention. Figure 4 In (a) and (b), the clamping mechanism 6 is shown in a simplified manner. Furthermore, Figure 4 (a) indicates a state in which one sheet component S is arranged on the stacking platform 3. Figure 4 (b) indicates a state in which multiple (e.g., 30) sheet components S are arranged on the stacking stage 3.

[0043] like Figure 1 and Figure 4 As shown in (a) and (b), the limiting mechanism 7 includes a wedge 7a, a stop 7b, a guide mechanism 7c, a force-applying mechanism 7d, and a reset mechanism 7e. The wedge 7a is, for example, a roughly right-angled triangular prism when viewed from the X-axis direction and extends along the Y-axis direction. On the Z-axis side of the wedge 7a, for example, an inclined surface 7f is formed that slopes towards the Z-axis side as it moves towards the Y-axis side.

[0044] For example, such as Figure 4 As shown in (a) and (b), the stop 7b protrudes from the stacking platform 3 toward the Z-axis side and has an insertion portion 7g for inserting the wedge 7a. On the Z-axis side surface of the insertion portion 7g, for example, an inclined surface 7h is formed that slopes toward the Z-axis side as it moves toward the Y-axis side, corresponding to the inclined surface 7f of the wedge 7a. At this time, the inclined surface 7f of the wedge 7a and the inclined surface 7h of the stop 7b can make approximately surface contact at a self-locking angle to restrict the relative movement of the wedge 7a and the stop 7b.

[0045] The guide mechanism 7c guides the wedge 7a along the Y-axis direction. For example... Figure 4 As shown in (a) and (b), the guiding mechanism 7c includes a guide rail 7i and a slider 7j. The guide rail 7i extends, for example, along the Y-axis and is fixed to the base 2. The slider 7j moves along the guide rail 7i in the Y-axis direction. A wedge 7a is fixed to the slider 7j via a fixing member 7k.

[0046] The force-applying mechanism 7d applies force, for example, to the wedge 7a on the Y-axis + side. The force-applying mechanism 7d may include, for example, a tension spring, such as... Figure 4 As shown in (a) and (b), the Y-axis + side end of the force-applying mechanism 7d is fixed to the base 2 via the fixing member 7l, and the Y-axis - side end of the force-applying mechanism 7d is fixed to the slider 7j of the guide mechanism 7c.

[0047] The reset mechanism 7e, for example, moves the wedge 7a toward the Y-axis side to return it to a preset initial position. Here, the initial position of the wedge 7a can be, for example, the configuration position of the wedge 7a in which the Z-axis+ side surface of the stacking stage 3 is in approximately contact with the Z-axis-side surface of the clamping arm 6a of the clamping mechanism 6 when the sheet component S has not been conveyed to the stacking stage 3.

[0048] like Figure 4 As shown in (a) and (b), the reset mechanism 7e includes a rod 7m. The rod 7m extends, for example, along the Y-axis direction, and the Y-axis+ side portion of the rod 7m is supported on the base 2 in a manner that guides movement in the Y-axis direction. The Y-axis-side end of the rod 7m is fixed to the slider 7j of the guide mechanism 7c.

[0049] In addition, such as Figure 1As shown, it can be configured such that, according to the amount of movement of the stacking stage 3 in the Z-axis direction, multiple limiting mechanisms 7 are arranged in the X-axis direction to maintain the contact state between the wedge 7a and the stop member 7b corresponding to the movement of the stacking stage 3 in the Z-axis direction.

[0050] Next, the problem to be solved by the present invention will be explained below. The stacking platform 3 descends according to the number of layers of the sheet component S. The clamping mechanism 6, which presses the stacking platform 3 upwards via the spring 6e, is pushed back towards the Z-axis + side. However, if the number of layers of the sheet component S increases, the spring 6e deflects, and the spring force increases. Simultaneously, the wedge 7a is pressed against the stop member 7b by the force-applying mechanism 7d. However, if the number of layers of the sheet component S increases, the force-applying mechanism 7d contracts, and the spring force decreases (see reference). Figure 4 (b)).

[0051] The effect of the wedge 7a in restricting movement is determined by the balance between the spring force of spring 6e and the spring force of the force-applying mechanism 7d. Therefore, when the number of layers in the sheet component S is large, the spring force of spring 6e is stronger than the spring force of the force-applying mechanism 7d, the restricting effect of the wedge 7a weakens, and the wedge 7a moves towards the Y-axis. As a result, the stacking platform 3 generates a force that wants to return.

[0052] Therefore, the clamping mechanism 6 needs to press the stacking stage 3 again, which increases the energy of the cam driving the clamping mechanism 6, increases the external force applied to the mover, increases the deviation, and thus worsens the stacking accuracy.

[0053] The angle of the wedge 7a that stops the stacking stage 3 from returning is determined by the balance of the two forces mentioned above. Therefore, if the angle is shallow, when the number of layers in the sheet component S is small, the wedge 7a is stretched, the stacking stage 3 descends, and it is difficult to clamp. On the other hand, when the number of layers in the sheet component S is large, the spring force of the spring 6e is stronger than that of the wedge 7a, the stacking stage 3 rises, and the stroke of the force required for clamping becomes longer, placing an unnecessary burden on the cam that drives the clamping.

[0054] The laminate holding device 1 of the present invention solves this problem by providing a movable mechanism 8, which continuously changes the angle of the wedge 7a based on the balance between the spring force of the spring 6e, which varies with the number of laminates of the sheet component S, and the spring force of the force application mechanism 7d.

[0055] The laminate holding device 1 of the present invention is within the limiting mechanism 7 ( Figure 1 The area enclosed by the dotted line in the diagram has a movable mechanism 8 that allows the angle of the wedge 7a to be variable or stepped. Here, using... Figure 2 , Figure 3 The movable mechanism 8 is described below. The movable mechanism 8 has a support 8a and a movable claw 8b.

[0056] The support 8a is fixed to the stacking platform 3 and moves up and down together with the stacking platform 3. A [feature / equipment] is provided on the support 8a. Figure 2 , Figure 3 The serrations are shown. The spacing of the serrations preferably corresponds to the thickness of one layer of the sheet component S. The movable claw 8b has a shape that mimics the shape of the bearing 8a, and engages and locks with the bearing 8a whenever one sheet component S is stacked. Thus, it is possible to maintain a state where the stacking platform 3 descends but does not return, regardless of whether the balance of the spring changes due to the number of stacked sheet components S.

[0057] Furthermore, the position where the movable claw 8b engages and locks with the bearing 8a can be set to a position where the stacking stage 3 returns only by a small amount, for example, the thickness of 1 to 5 sheet components S. In this way, the stacking stage 3 will not return completely from the pressed position, thus suppressing the clamping loosening caused by excessive external pressure.

[0058] Furthermore, the spacing of the serrations of the bearing 8a can be set to approximately five times the thickness of the sheet component S, and installed with an offset from the thickness of the sheet component S. Through miniaturization of the device, as the thickness of the sheet component S decreases, the engagement of the movable claw 8b with the bearing 8a becomes shallower, thus suppressing slippage.

[0059] Therefore, it is possible to prevent the stacking stage 3 from returning, and improve the stacking accuracy, regardless of the number of layers of sheet component S.

[0060] This invention is not limited to the above-described embodiments, and appropriate changes can be made without departing from the spirit of the invention.

[0061] Symbol Explanation

[0062] 1-Laminator holding device, 2-Base, 3-Laminator platform, 4-Leg, 5-Pressing mechanism, 6-Clamping mechanism, 6a-Clamping arm, 6b-Clamping rod, 6c-Sliding mechanism, 6d-Tilting mechanism, 6e-Spring, 7-Restriction mechanism, 7a-Wedge, 7b-Stop, 7c-Guide mechanism, 7d-Force application mechanism, 7e-Reset mechanism, 8-Modable mechanism, 8a-Bearing seat, 8b-Modable claw, F-Reference surface, S-Sheet component.

Claims

1. A stack holding device, used for stacking conveyed sheet components, characterized in that it comprises: A stacking platform that stacks the sheet components and is movable in the vertical direction; The pressing mechanism presses the stacking platform upwards; A clamping mechanism that clamps and holds the stacked sheet components to the stacking table; and A limiting mechanism, separate from the clamping mechanism, restricts the upward movement of the stacking platform. The limiting mechanism has a wedge with a variable angle. The limiting mechanism is configured such that, The angle of the wedge varies continuously or in stages according to the balance of the springs, which varies with the number of layers, and / or It also includes a movable mechanism, which has a toothed support fixed to the stacking platform and moving up and down with the stacking platform, and a movable claw that imitates the shape of the support. Whenever one sheet component is stacked, the movable claw engages with the support and locks.

2. The laminate holding device according to claim 1, characterized in that, The spacing of the serrations of the bearing is greater than the thickness of the sheet component, and the bearing is installed with an offset from the thickness of the sheet component.

3. The laminate holding device according to claim 1, characterized in that, The movable claw engages with and locks with the bearing at a position where the stacking platform returns only a small amount. The minute amount is the thickness of 1 to 5 of the sheet components.

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