Stacked body holding device

Abstract

To realize a stacked body holding device that can contribute to simplifying the stacking operation of sheet members.SOLUTION: A stacked body holding device (1) according to one embodiment of the present disclosure is used when conveyed sheet members (S) are stacked, the stacked body holding device including: a stack table (3) on which the sheet members (S) are stacked and which is movable in a vertical direction; a pressing mechanism (5) that presses the stack table (3) upward; a clamping mechanism (6) that clamps and holds the stacked sheet members (S) together with the stack table (3); and a regulation mechanism (7) that is separate from the clamping mechanism (6) and that regulates the upward movement of the stack table (3).SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a stack holding device used when stacking transported sheet members. [Background technology]

[0002] When stacking sheet members such as sheet-like electrodes, for example, a stack holding device is used as disclosed in Patent Document 1. This type of stack holding device is configured to press the stacking table from below with a pressing mechanism in order to clamp and hold the sheet members stacked on the stacking table between a clamping mechanism facing the stacking table and the stacking table with the sheet members sandwiched between them. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2021-30566 A Summary of the Invention [Problem to be solved by the invention]

[0004] The present applicant has found the following problem: When stacking a new sheet member on an existing stack of sheet members, the stack holding device of Patent Document 1 needs to release the sheet members from the holding state by the clamp mechanism, but at that time, the stacking table rises.

[0005] Therefore, the laminate holding device of Patent Document 1 maintains the holding state of the sheet member by one of the opposing clamp mechanisms, while releasing the holding state of the sheet member by the other opposing clamp mechanism, and places one end of a new sheet member on the sheet member on the other clamp mechanism side and holds it with the other clamp mechanism.

[0006] Then, the sheet member held by one of the clamp mechanisms is released, and the other end of a new sheet member is placed on the sheet member on the side of the one of the clamp mechanisms and held by the one of the clamp mechanisms, thereby stacking the new sheet member on the stacked sheet members.

[0007] Thus, in the stack holding device of Patent Document 1, when stacking a new sheet member on top of stacked sheet members, it is necessary to operate the opposing clamp mechanisms individually and to place the new sheet member on each of the opposing ends, which poses the problem that the stacking work of the sheet members is cumbersome.

[0008] The present disclosure has been made in consideration of such problems, and realizes a stack holding device that can contribute to simplifying the stacking work of sheet members. [Means for solving the problem]

[0009] A laminate holding device according to one aspect of the present disclosure is a laminate holding device used when stacking conveyed sheet members, a stacking table on which the sheet members are stacked and which is movable in a vertical direction; A pressing mechanism that presses the stacking table upward; a clamp mechanism that holds the stacked sheet members by sandwiching them between the stacking table and the clamp mechanism; a restricting mechanism that restricts the upward movement of the stacking table, separate from the clamping mechanism; Equipped with.

[0010] In the above-mentioned stack holding device, the regulating mechanism is a wedge having an inclined surface; a stopper that protrudes downward from the stacking base and has an inclined surface on a lower surface of an insertion portion into which the wedge is inserted, the inclined surface coming into contact with the inclined surface of the wedge; a guide mechanism that guides the wedge in a direction in which the wedge is inserted into and removed from the insertion portion of the stopper; a biasing mechanism that biases the wedge in a direction in which the wedge is inserted into the insertion portion of the stopper; Equipped with the wedge is inserted into the insertion portion of the stopper and the inclined surface of the wedge contacts the inclined surface of the stopper, restricting the upward movement of the stacking table; It is preferable that, as the stacking table moves downward, the wedge moves in a direction to be inserted into the insertion portion of the stopper.

[0011] In the above-described laminate holding device, it is preferable that the inclined surface of the wedge and the inclined surface of the stopper come into contact with each other at a self-locking angle.

[0012] The laminate holding device described above preferably includes a return mechanism that moves the wedge in a direction in which the wedge is removed from the insertion portion of the stopper and returns the wedge to a preset initial position.

[0013] In the above-mentioned stack holding device, the stack holding device is movable on a floor surface supporting the stack holding device, the guide mechanism includes a rail extending in a direction in which the wedge is inserted into and removed from the insertion portion of the stopper, and a slider to which the wedge is fixed and which moves along the rail, It is preferable that the return mechanism includes a rod connected to the slider and extending in a direction in which the wedge is inserted into and removed from the insertion portion of the stopper, and a bracket that contacts the rod when the stack holding device is positioned at a predetermined position on the floor surface and pushes the rod in the direction in which the wedge is removed from the insertion portion of the stopper. Effect of the Invention

[0014] According to the present disclosure, it is possible to realize a stack holding device that can contribute to simplifying the stacking work of sheet members. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view showing a laminate holding device according to an embodiment. [Diagram 2]5A and 5B are diagrams for explaining the configuration of a regulating mechanism of the laminate holding device according to the embodiment. [Diagram 3] 1 is a diagram showing a state in which a plurality of sheet members are stacked in the laminate holding device of the embodiment; [Figure 4] 11A and 11B are diagrams illustrating a state in which a wedge returns to an initial position in the laminate holding device according to the embodiment. [Diagram 5] 13 is a diagram showing a state in which the stack table is pushed up to the + side of the Z axis in the stack holding device of the embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, specific embodiments to which the present disclosure is applied will be described in detail with reference to the drawings. However, the present disclosure is not limited to the following embodiments. In addition, the following description and drawings are appropriately simplified for clarity of explanation.

[0017] First, the configuration of the laminate holding device of this embodiment will be described. The laminate holding device of this embodiment is suitable for stacking sheet members such as sheet-shaped electrodes. Fig. 1 is a perspective view showing the laminate holding device of this embodiment.

[0018] Here, in the following description, for clarity, a three-dimensional (XYZ) coordinate system is used. The positive side of the X axis is the front side of the laminate holding device 1, and the negative side of the X axis is the rear side of the laminate holding device 1. The positive side of the Y axis is the left side of the laminate holding device 1, and the negative side of the Y axis is the right side of the laminate holding device 1. The positive side of the Z axis is the upper side of the laminate holding device 1, and the negative side of the Z axis is the lower side of the laminate holding device 1.

[0019] 1, the stack holding device 1 includes a base 2, a stacking table 3, legs 4, a pressing mechanism 5, a clamping mechanism 6, and a regulating mechanism 7. The base 2 is, for example, a magnetically levitated linear device having a substantially rectangular shape when viewed from the Z-axis direction, and is configured to be movable while levitated above a floor surface F (see FIG. 2).

[0020] 1, the stacking table 3 is disposed on the +Z-axis side with respect to the base 2. The stacking table 3 is, for example, a plate body having a substantially rectangular shape when viewed from the Z-axis direction. The legs 4 support the stacking table 3 so as to be movable in the Z-axis direction. The legs 4 are, for example, disposed near the four corners of the stacking table 3 when viewed from the Z-axis direction.

[0021] 1, the leg 4 includes a support 4a and a guide mechanism 4b. The support 4a extends from the base 2 toward the positive side of the Z axis. The guide mechanism 4b includes, for example, a linear guide. That is, the guide mechanism 4b includes a rail 4c and a slider 4d.

[0022] 1, the rail 4c extends in the Z-axis direction and is fixed to the support column 4a. The slider 4d is movable in the Z-axis direction along the rail 4c and is fixed to the end of the stacking table 3 on the negative side of the Z-axis. This allows the stacking table 3 to move in the Z-axis direction.

[0023] The pressing mechanism 5 presses the stacking table 3 toward the + side of the Z axis. The pressing mechanism 5 includes an elastic body such as a spring, and as shown in Fig. 1, an end portion of the pressing mechanism 5 on the - side of the Z axis is fixed to the base 2 so as to be rotatable about a rotation axis extending in the X axis direction, and an end portion of the pressing mechanism 5 on the + side of the Z axis is fixed to the stacking table 3 so as to be rotatable about a rotation axis extending in the X axis direction.

[0024] The clamp mechanism 6 holds the sheet member S (see FIG. 2) by sandwiching it between the stacking table 3. As shown in FIG. 1, the clamp mechanism 6 includes a clamp arm 6a, a clamp rod 6b, a slide mechanism 6c, and a tilt mechanism 6d.

[0025] The clamp arm 6a contacts the sheet member S stacked closest to the Z-axis + side from the Z-axis + side in order to sandwich and hold the sheet member S with the stacking table 3. The clamp arm 6a is, for example, a substantially rectangular plate when viewed from the Z-axis direction in a state in which the sheet member S is sandwiched and held between the stacking table 3 and the clamp mechanism 6. A plurality of clamp arms 6a (for example, four clamp arms) are arranged at intervals in the Y-axis direction, for example, as shown in FIG.

[0026] 1, the clamp rod 6b extends in the Y-axis direction and is disposed on the negative X-axis side with respect to the stacking table 3 when viewed from the Z-axis direction. The negative X-axis end of the clamp arm 6a is fixed to the clamp rod 6b.

[0027] The clamp rod 6b is fixed to a slider 6f that is movable in the Z-axis direction along a guide 6e fixed to the base 2 and can swing around a swing axis 6j extending in the Y-axis direction in the tilt mechanism 6d, as shown in FIG.

[0028] The slide mechanism 6c moves the clamp arm 6a and the clamp rod 6b in the Z-axis direction via the slider 6f. In the slide mechanism 6c, for example, the slider 6f is pushed down to the furthest position on the Z-axis negative side when the long diameter portion of a cam provided on a rotation shaft 6g extending in the Y-axis direction, which is rotatably supported by the guide 6e, comes into contact with an arm extending from the slider 6f to the Z-axis negative side. As a result, the clamp arm 6a and the clamp rod 6b are positioned furthest on the Z-axis negative side.

[0029] At this time, the arm of the slide mechanism 6c is biased toward the Z-axis + side by an elastic body. In the slide mechanism 6c, for example, a roller follower 6i of a lever 6h fixed to an end of a rotating shaft 6g comes into contact with a fixed slide cam provided at a first position on the floor surface F where a new sheet member is to be stacked, and the cam rotates clockwise via the lever 6h as viewed from the Y-axis + side.

[0030] As a result, the cam's downward pressure on the slider 6f toward the negative side of the Z axis is relaxed, and the slider 6f is pushed up toward the positive side of the Z axis via the arm of the slide mechanism 6c by the biasing force of the elastic body, and the clamp arm 6a and clamp rod 6b move toward the positive side of the Z axis.

[0031] In the slide mechanism 6c, the rotation shaft 6g of the slide mechanism 6c is biased by another elastic body so as to return the long diameter portion of the cam to a state in which it is in contact with the arm, and when the laminate holding device 1 passes the first position on the floor surface F, the long diameter portion of the cam returns to a state in which it is in contact with the arm, and the clamp arm 6a and the clamp rod 6b return to a state in which they are positioned furthest on the Z-axis - side.

[0032] The tilt mechanism 6d swings the clamp arm 6a and the clamp rod 6b around the Y axis. In the tilt mechanism 6d, for example, the clamp rod 6b is rotatably supported by a slider 6f and is fixed to a swing shaft 6j extending in the Y axis direction via an arm 6k.

[0033] In the tilt mechanism 6d, the clamp arm 6a and the clamp rod 6b rotate in the most counterclockwise direction via the arm 6k when viewed from the Y-axis + side, with the long diameter part of the cam provided on the rotation shaft 6l that is rotatably supported by the slider 6f on the Z-axis - side with respect to the rocking shaft 6j on the X-axis - side and that extends in the Y-axis direction in contact with the arm 6k. As a result, the clamp arm 6a is disposed approximately parallel to the XY plane within the arrangement area of ​​the stacking table 3 when viewed from the Z-axis direction.

[0034] At this time, the arm 6k of the tilt mechanism 6d is biased clockwise by the elastic body when viewed from the Y-axis + side. Then, in the tilt mechanism 6d, for example, the roller follower 6n of the lever 6m fixed to the end of the rotating shaft 6l comes into contact with a tilt fixed cam provided at a first position on the floor surface F, and the cam rotates clockwise via the lever 6m when viewed from the Y-axis + side.

[0035] As a result, when viewed from the Y-axis + side, the cam's counterclockwise push of the arm 6k is relaxed, and the elastic force causes the clamp arm 6a and clamp rod 6b to swing clockwise via the arm 6k, and when viewed from the Z-axis direction, the clamp arm 6a retreats from the placement area of ​​the stacking table 3.

[0036] In the tilt mechanism 6d, the rotation axis 6l of the tilt mechanism 6d is biased by another elastic body so as to return the long diameter portion of the cam to a state in which it is in contact with the arm 6k. When the laminate holding device 1 passes a first position on the floor surface F, the long diameter portion of the cam returns to a state in which it is in contact with the arm 6k, and the clamp arm 6a returns to a state in which it is positioned approximately parallel to the XY plane in the placement area of ​​the laminate table 3 when viewed from the Z axis + side.

[0037] In this way, the slide mechanism 6c and the tilt mechanism 6d can realize the movement of the clamp arm 6a and the clamp rod 6b in the Z-axis direction and the swinging about the Y-axis. However, the configurations of the slide mechanism 6c and the tilt mechanism 6d are merely examples, and any configuration can be used as long as it can realize the movement of the clamp arm 6a and the clamp rod 6b in the Z-axis direction and the swinging about the Y-axis.

[0038] In addition, in this embodiment, the clamp mechanisms 6 are arranged on the negative side of the X-axis with respect to the stacking base 3, but the arrangement and number of the clamp mechanisms 6 are not limited. Therefore, the clamp mechanisms 6 may be arranged so that they face each other with the stacking base 3 in between.

[0039] The restricting mechanism 7 restricts the movement of the stacking table 3 to the + side of the Z axis. Fig. 2 is a diagram for explaining the configuration of the restricting mechanism of the stack holding device of this embodiment. Note that Fig. 2 shows the clamping mechanism 6 and the like in a simplified manner.

[0040] 1 and 2, the restriction mechanism 7 includes a wedge 7a, a stopper 7b, a guide mechanism 7c, a biasing mechanism 7d, and a return mechanism 7e. The wedge 7a is, for example, a substantially right-angled triangular prism when viewed from the X-axis direction, and extends in the Y-axis direction. For example, an inclined surface 7f is formed on the surface of the wedge 7a on the negative Z-axis side, which inclines toward the positive Z-axis side as it approaches the positive Y-axis side.

[0041] 2, the stopper 7b protrudes from the stacking base 3 toward the negative side of the Z axis, and includes an insertion portion 7g into which the wedge 7a is inserted. An inclined surface 7h that inclines toward the positive side of the Z axis as it approaches the positive side of the Y axis is formed on the surface of the insertion portion 7g on the negative side of the Z axis, for example, so as to correspond 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 stopper 7b may be in approximate surface contact at a self-locking angle so that the relative movement between the wedge 7a and the stopper 7b is restricted.

[0042] The guide mechanism 7c guides the wedge 7a in the Y-axis direction. As shown in Fig. 2, the guide mechanism 7c includes a rail 7i and a slider 7j. The rail 7i extends, for example, in the Y-axis direction and is fixed to the base 2. The slider 7j moves in the Y-axis direction along the rail 7i. The wedge 7a is fixed to the slider 7j via a fixing member 7k.

[0043] The biasing mechanism 7d biases the wedge 7a toward the + side of the Y axis. The biasing mechanism 7d includes, for example, a tension spring, and, for example, as shown in Fig. 2, the end of the biasing mechanism 7d on the + side of the Y axis is fixed to the base 2 via a fixing member 7l, and the end of the biasing mechanism 7d on the - side of the Y axis is fixed to a slider 7j of the guide mechanism 7c.

[0044] The return mechanism 7e, for example, moves the wedge 7a to the Y-axis negative side and returns it to a preset initial position. Here, the initial position of the wedge 7a may be, for example, a position of the wedge 7a where the surface of the stacking table 3 on the Z-axis positive side and the surface of the clamp arm 6a of the clamping mechanism 6 on the Z-axis negative side are substantially in contact with each other when the sheet member S is not being conveyed to the stacking table 3.

[0045] The return mechanism 7e includes a rod 7m and a bracket 7n (see FIG. 4) as shown in Fig. 2. The rod 7m extends, for example, in the Y-axis direction, and a portion of the rod 7m on the Y-axis + side is supported by the base 2 via a support member 7o so as to guide the movement of the rod 7m in the Y-axis direction, and an end of the rod 7m on the Y-axis - side is fixed to a slider 7j of the guide mechanism 7c.

[0046] The bracket 7n is fixed at a second position where the stack holding device 1 stops in order to return the wedge 7a to its initial position, for example, when the stacking operation of the sheet members S on the floor surface F is completed, and when the stack holding device 1 reaches the second position, it comes into contact with the end of the rod 7m on the Y-axis + side, pushing the slider 7j of the guide mechanism 7c toward the Y-axis - side, and placing the wedge 7a in its initial position.

[0047] Depending on the amount of movement of the stacking base 3 in the Z-axis direction, it is preferable to arrange multiple regulating mechanisms 7 in the X-axis direction as shown in FIG. 1, so that the contact state between the wedges 7a and the stoppers 7b is maintained in response to the movement of the stacking base 3 in the Z-axis direction.

[0048] At this time, in order to allow the end of the wedge 7a on the Y-axis + side to be smoothly inserted into the insertion portion 7g of the stopper 7b, it is preferable that a roller 7p capable of rotating around a rotation axis extending in the X-axis direction is provided at the end of the wedge 7a on the Y-axis + side, as shown in FIG. 1.

[0049] Next, the operation of the laminate holding device 1 of this embodiment will be described. Fig. 3 is a diagram showing a state in which a plurality of sheet members are stacked in the laminate holding device of this embodiment. Fig. 4 is a diagram showing a state in which the wedge returns to its initial position in the laminate holding device of this embodiment. Fig. 5 is a diagram showing a state in which the stacking table is pushed up to the + side of the Z axis in the laminate holding device of this embodiment. Note that Figs. 3 to 5 show the clamp mechanism 6 and the like in a simplified form.

[0050] Here, the laminate holding device 1 moves in a stacking area where a plurality of first positions are arranged on a floor surface F. The wedge 7a is arranged in an initial position, and the inclined surface 7f of the wedge 7a and the inclined surface 7h of the stopper 7b are in surface contact with each other, restricting the movement of the stacking table 3 toward the + side of the Z axis.

[0051] In this state, first, the clamp arm 6a and the clamp rod 6b are moved to the + side of the Z axis by the slide mechanism 6c of the clamp mechanism 6. Then, the clamp arm 6a and the clamp rod 6b are swung by the tilt mechanism 6d of the clamp mechanism 6, and the clamp arm 6a is retracted from the arrangement area of ​​the stacking table 3 when viewed from the Z axis direction.

[0052] Next, the sheet material S is placed on the Z-axis + side surface of the stacking table 3, and then the clamp arm 6a and the clamp rod 6b are swung by the tilt mechanism 6d of the clamp mechanism 6 to position the clamp arm 6a within the placement area of ​​the stacking table 3 when viewed from the Z-axis direction.

[0053] Then, the clamp arm 6a and the clamp rod 6b are moved to the negative side of the Z axis by the slide mechanism 6c of the clamp mechanism 6, and the sheet member S is sandwiched and held between the stacking table 3 and the clamp arm 6a of the clamp mechanism 6.

[0054] At this time, the stacking table 3 is pushed in by the clamp arm 6a of the clamp mechanism 6 by an amount equivalent to the thickness of the sheet material S and moves toward the negative side of the Z axis, releasing the surface contact state between the inclined surface 7f of the wedge 7a and the inclined surface 7h of the stopper 7b.

[0055] Then, the wedge 7a moves toward the + side of the Y axis via the slider 7j of the guide mechanism 7c by the biasing force of the biasing mechanism 7d of the regulating mechanism 7, and the inclined surface 7f of the wedge 7a and the inclined surface 7h of the stopper 7b again come into surface contact as shown in Fig. 2, thereby restricting the movement of the stacking table 3 toward the + side of the Z axis. In other words, the stacking table 3 is maintained in a state where it has moved toward the - side of the Z axis by the thickness of the sheet member S.

[0056] By repeating these steps, as shown in Fig. 3, a predetermined number of sheet members S are stacked on the stacking table 3. At this time, the stacking table 3 is maintained in a state in which it has moved to the negative side of the Z axis by an amount equivalent to the thickness of the stacked sheet members S by the regulating mechanism 7.

[0057] Therefore, by releasing the holding state of the stacked sheet members S by the clamp mechanism 6 and retracting the clamp arm 6a from the arrangement area of ​​the stacking table 3, a new sheet member S can be easily stacked on the stacked sheet members S.

[0058] In other words, when using the laminate holding device 1 of this embodiment, when stacking a new sheet member S on top of stacked sheet members S, it is not necessary to individually operate the clamp mechanisms that sandwich the sheet members or to place a new sheet member on each of the opposing ends, as is the case when using the laminate holding device of Patent Document 1, and the stacking work of the sheet members S can be simplified.

[0059] Next, when stacking of the sheet members S is completed, the clamp arm 6a and the clamp rod 6b are moved to the +Z-axis side by the slide mechanism 6c of the clamp mechanism 6. Then, the clamp arm 6a and the clamp rod 6b are swung by the tilt mechanism 6d of the clamp mechanism 6 to move the clamp arm 6a away from the arrangement area of ​​the stacking table 3 as viewed from the +Z-axis side. This makes it possible to transport the stacked sheet members S from the stack holding device 1.

[0060] Thereafter, when the stacked sheet members S are transported out of the stack holding device 1 and the stack holding device 1 reaches a second position on the floor surface F, the bracket 7n of the return mechanism 7e comes into contact with the rod 7m, and as shown in Figure 4, the slider 7j of the guide mechanism 7c is moved toward the Y-axis - side to push the wedge 7a into its initial position.

[0061] With the bracket 7n of the return mechanism 7e in contact with the rod 7m in this manner, the surface contact between the inclined surface 7f of the wedge 7a and the inclined surface 7h of the stopper 7b is released, and the restriction on movement of the stacking base 3 toward the + side of the Z axis is lifted.

[0062] Therefore, the stacking table 3 moves toward the + side of the Z axis due to the biasing force of the pressing mechanism 5, and as shown in Fig. 5, the inclined surface 7f of the wedge 7a and the inclined surface 7h of the stopper 7b again come into surface contact with each other, restricting the movement of the stacking table 3 toward the + side of the Z axis. This makes the stack holding device 1 ready for a new stacking operation of the sheet members S, and it returns to the stacking area on the floor surface F again.

[0063] In this manner, the stack holding device 1 of the present embodiment can restrict movement of the stacking table 3 toward the +Z-axis side by the restricting mechanism 7. Therefore, when the state in which the stacked sheet members S are held by the clamping mechanism 6 is released and the clamping arm 6a is retracted from the arrangement area of ​​the stacking table 3, a new sheet member S can be easily stacked on the stacked sheet members S.

[0064] In other words, when using the laminate holding device 1 of this embodiment, when stacking a new sheet member S on top of stacked sheet members S, it is not necessary to individually operate the clamp mechanisms that sandwich the sheet members or to place a new sheet member on each of the opposing ends, as is the case when using the laminate holding device of Patent Document 1, and the stacking work of the sheet members S can be simplified.

[0065] Moreover, since the regulating mechanism 7 has a simple configuration using the wedge 7a as described above, the stack holding device 1 can be constructed more inexpensively than in a case where an actuator or the like is used to regulate the movement of the stack table 3 toward the + side of the Z axis.

[0066] Here, for example, when stacking sheet members S using the stack holding device of Patent Document 1, when stacking a new sheet member S, it is necessary to always use one of the clamp mechanisms to restrict movement of the stacking table toward the +Z axis side, and when viewed from the +Z axis side, one of the clamp mechanisms cannot be retracted from the placement area of ​​the stacking table.

[0067] On the other hand, when stacking sheet members S using the laminate holding device 1 of this embodiment, the clamp mechanism 6 can be retracted from the arrangement area of ​​the stacking table 3 when viewed from the Z-axis + side, so that large sheet members S can be stacked using multiple laminate holding devices 1.

[0068] The configuration of the regulating mechanism 7 in this embodiment is merely an example, and any configuration that can regulate the movement of the stacking base 3 to the +Z axis side, separate from the clamping mechanism 6, may be used.

[0069] The present disclosure is not limited to the above-described embodiment, and can be modified as appropriate without departing from the spirit and scope of the present disclosure. [Explanation of symbols]

[0070] 1 Stacked body holding device 2 Base 3 Stacking table 5 Pressing mechanism 6 Clamping mechanism 7 Regulatory Mechanisms 7a wedge, 7f slope 7b stopper, 7g insertion part, 7h inclined surface 7c Guide mechanism, 7i Rail, 7j Slider 7d biasing mechanism 7e return mechanism, 7m rod, 7n bracket F Floor S Sheet material

Claims

1. A stack holding device used when stacking conveyed sheet members, comprising: a stacking table on which the sheet members are stacked and which is movable in a vertical direction; A pressing mechanism that presses the stacking table upward; a clamp mechanism that holds the stacked sheet members by sandwiching them between the stacking table and the clamp mechanism; a restricting mechanism that restricts the upward movement of the stacking table, separate from the clamping mechanism; A laminate holding device comprising:

2. The regulating mechanism is a wedge having an inclined surface; a stopper that protrudes downward from the stacking base and has an inclined surface on a lower surface of an insertion portion into which the wedge is inserted, the inclined surface coming into contact with the inclined surface of the wedge; a guide mechanism that guides the wedge in a direction in which the wedge is inserted into and removed from the insertion portion of the stopper; a biasing mechanism that biases the wedge in a direction in which the wedge is inserted into the insertion portion of the stopper; Equipped with the wedge is inserted into the insertion portion of the stopper and the inclined surface of the wedge contacts the inclined surface of the stopper, restricting the upward movement of the stacking table; 2. The laminate holding device according to claim 1, wherein the wedge moves in a direction to be inserted into the insertion portion of the stopper as the stacking table moves downward.

3. The laminate holding device according to claim 2 , wherein the inclined surface of the wedge and the inclined surface of the stopper come into contact at a self-locking angle.

4. 4. The laminate holding device according to claim 2, further comprising a return mechanism for moving the wedge in a direction in which the wedge is removed from the insertion portion of the stopper and returning the wedge to a preset initial position.

5. the laminate holding device is movable on a floor surface supporting the laminate holding device; the guide mechanism includes a rail extending in a direction in which the wedge is inserted into and removed from the insertion portion of the stopper, and a slider to which the wedge is fixed and which moves along the rail, 5. The stack holding device of claim 4, wherein the return mechanism comprises: a rod connected to the slider and extending in a direction in which the wedge is inserted into and removed from the insertion portion of the stopper; and a bracket that contacts the rod when the stack holding device is positioned at a preset position on the floor surface and pushes the rod in a direction in which the wedge is removed from the insertion portion of the stopper.

Images