Sheet removal method

Abstract

To provide a sheet removal method which prevents stacked sheet members from collapsing or falling by pressing a plurality of them from the upper side in a stacking direction.SOLUTION: A sheet removal method comprises: a first process of sucking and holding a topmost sheet member by pressing a delivery plate in a horizontal state when a pressure device is in a pressing state; a second process of pressing a plurality of sheet members by a non-elastically deformed portion of the delivery plate, which is not elastically deformed, while the pressure device is not pressed and the delivery plate is elastically deformed; a third process of inserting a holding blade into a space between the topmost sheet member and a sheet member on its lower layer and putting the pressure device in the pressing state again; a fourth process of returning the delivery plate sucking and holding the topmost sheet member to a horizontal state while retracting it upward; and a fifth process of delivering the topmost sheet member sucked and held by the delivery plate to a receiving holder.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a sheet taking-out method, and particularly to a sheet taking-out method by a sheet taking-out device.

Background Art

[0002] A transfer method by a transfer device that takes out and transfers the uppermost sheet member from a plurality of sheet members horizontally placed on a mounting table in a pre-laminated state is disclosed in Patent Document 1.

[0003] Patent Document 1 discloses a transfer method by a transfer device, which includes: a first step of pressing a horizontal transfer plate against the uppermost sheet member and adsorbing and holding it while the pressing device is in a pressed state; a second step of, after the first step, making the transfer plate inclined while making the pressing device non-pressed, and pressing a plurality of sheet members from the upper side in the stacking direction by the base end side of the inclined transfer plate; a third step of, after the second step, inserting a pressing blade into the space generated between the uppermost sheet member and the sheet member below it and making the pressing device in a pressed state again; and a fourth step of, after the third step, returning the transfer plate that adsorbs and holds the uppermost sheet member to a horizontal state while retracting it upward, and transferring the uppermost sheet member adsorbed and held on the transfer plate to a holder.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] According to the technique described in Patent Document 1, in the process of taking out the uppermost sheet member, a plurality of sheet members can always be pressed by a pressing blade or a transfer plate from the upper side in the stacking direction. Therefore, even when the sheet members are stacked in an unstable state, it is described in Patent Document 1 that it is possible to suppress the sheet members from collapsing or the positions of the sheet members from shifting.

[0006] Here, FIG. 6 is a diagram for explaining a problem caused by the ratio of the pressed portion to the tilted portion in the sheet-like member. In the second step described above, as shown in FIG. 6(a), when the ratio of the pressed portion of the uppermost sheet member S pressed by the base end portion side of the inclined transfer plate P is set large, the ratio of the tilted portion of the uppermost sheet member S tilted by the transfer plate P becomes relatively small. If the ratio of the tilted portion becomes too small, a sufficient space cannot be secured between the uppermost sheet member S and the lower sheet member S, and there is a risk that the pressing blade B inserted into the space in the third step described above may interfere with the sheet member S. Therefore, in order to insert the pressing blade B without interference, it is necessary to increase the space.

[0007] Therefore, in order to increase the space, as shown in FIG. 6(b), it is conceivable to set a large ratio of the tilted portion in the uppermost sheet member S. However, when the ratio of the tilted portion is set large, the ratio of the pressed portion becomes relatively small. If the ratio of the pressed portion becomes too small, when the pressed portion is pressed by the base end portion side of the transfer plate P in the inclined state in the second step described above, there is a problem that the sheet member S may jump out and collapse from the stacked plurality of sheet members S, or the sheet member S may shift from a position suitable for adsorption or the like.

[0008] The present invention has been made to solve such problems, and in the process of taking out the uppermost sheet member from a plurality of stacked sheet members, by pressing the plurality of sheet members from above in the stacking direction, it is possible to prevent the sheet members from collapsing or the positions of the sheet members from shifting. The purpose is to provide a sheet taking-out method.

Means for Solving the Problems

[0009] The sheet extraction method according to an embodiment is a sheet extraction method by a sheet extraction device that extracts the uppermost sheet member from a plurality of sheet members horizontally placed on a mounting table in a pre-laminated state. The sheet extraction device has a pressing blade that presses the plurality of sheet members from above in the stacking direction thereof, and is disposed on the side of the mounting table. The pressing device is configured to be switchable between a pressing state in which the plurality of sheet members are pressed from above in the stacking direction by the pressing blade and a non-pressing state in which the pressing blade is retracted from above the plurality of sheet members to release the pressing by the pressing blade. The sheet extraction device further includes a delivery plate having a plurality of suction holding portions that suction-hold the uppermost sheet member from above in the stacking direction of the plurality of sheet members, and is disposed so as to face the pressing device in the short side direction of the sheet member with the mounting table interposed therebetween. The delivery plate is configured to be switchable between a horizontal state in which the delivery plate faces the uppermost sheet member in parallel and an elastically deformed state in which an elastically deformable elastic deformation portion including the suction holding portions disposed at one end side or both end sides in the longitudinal direction orthogonal to the short side direction of the sheet member is elastically deformed so as to warp upward. When the pressing device is in the pressing state, a first step of pressing the delivery plate in the horizontal state against the uppermost sheet member from above in the stacking direction of the plurality of sheet members to suction-hold the uppermost sheet member; after the first step, a second step of pressing the plurality of sheet members from above in the stacking direction by a non-elastically deformed non-elastic deformation portion of the delivery plate in the elastically deformed state while changing the pressing device to the non-pressing state and changing the delivery plate to the elastically deformed state; after the second step, a third step of inserting the pressing blade into the space generated between the uppermost sheet member and the sheet member below it by changing the delivery plate to the elastically deformed state in the second step and changing the pressing device back to the pressing state; after the third step, a fourth step of returning the delivery plate to the horizontal state while retracting the delivery plate suction-holding the uppermost sheet member upward; and after the fourth step, a fifth step of delivering the uppermost sheet member suction-held by the delivery plate to a receiving holder.

Advantages of the Invention

[0010] According to the present invention, in the process of taking out the uppermost sheet member from a plurality of stacked sheet members, by pressing the plurality of sheet members from above in the stacking direction, it is possible to provide a sheet taking-out method that suppresses the sheet members from collapsing or the positions of the sheet members from shifting.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Modes for Carrying Out the Invention

[0012] Embodiment 1 Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. However, the present disclosure is not limited to the following embodiments. Also, for clarity of explanation, the following description and drawings are appropriately simplified. What is shown in the figures is a part of the whole, and many other configurations not shown are actually included. In the following description, the same or equivalent elements are denoted by the same reference numerals, and duplicate explanations are omitted.

[0013] First, with reference to FIG. 1, the sheet extraction device 100 according to Embodiment 1 and the operation of the sheet extraction device 100 will be described. FIG. 1 is a perspective view for explaining the sheet extraction device according to Embodiment 1 and the operation of the sheet extraction device.

[0014] The sheet extraction device 100 shown in FIG. 1 is a device that extracts the sheet-shaped electrodes 1 one by one from a magazine in which the sheet-shaped electrodes 1 are stored in a stacked state, and delivers the extracted single sheet-shaped electrode 1 to a delivery holder described later.

[0015] The sheet-shaped electrode 1 is, for example, a battery material for forming a battery such as an all-solid-state battery mounted on a vehicle. The all-solid-state battery is preferably an all-solid-state lithium-ion secondary battery. The sheet-shaped electrode 1 has a rectangular planar shape. The thickness of the sheet-shaped electrode 1 is, for example, 0.1 to 0.5 mm.

[0016] Hereinafter, the longitudinal direction of the sheet-shaped electrode 1 will be defined as the X direction, the short-side direction orthogonal to the longitudinal direction of the sheet-shaped electrode 1 will be defined as the Y direction, and the stacking direction of the sheet-shaped electrodes 1 orthogonal to the XY plane will be defined as the Z direction for explanation.

[0017] The plurality of sheet-shaped electrodes 1 stored in the magazine in a stacked state do not necessarily have a flat shape, and among the sheet-shaped electrodes 1, there are those with a warped shape or a wavy shape. Therefore, the plurality of sheet-shaped electrodes 1 stored in the magazine in a stacked state are in an unstable state in the magazine. Therefore, if the sheet-shaped electrodes 1 are not properly extracted from the magazine by the sheet extraction device 100, each of the sheet-shaped electrodes 1 stacked in the magazine may collapse or shift in position in the magazine.

[0018] Therefore, the sheet extraction device 100 according to Embodiment 1 is configured to appropriately extract the sheet-like electrodes 1 from the magazine and transfer them to the transfer holder 40 so that the sheet-like electrodes 1 stacked in the magazine do not collapse or the like in the magazine.

[0019] The sheet extraction device 100 includes a pressing device 10 provided on one side surface of the magazine placement portion where the magazine is placed, on the one side in the Y direction, and a transfer device 20 provided on the other side surface of the magazine placement portion, on the other side in the Y direction. Hereinafter, the detailed configurations of these devices will be described.

[0020] The pressing device 10 is a device for pressing the sheet-like electrodes 1 stacked in the magazine from above in the stacking direction, that is, from above in the Z direction, so that the plurality of sheet-like electrodes 1 stored in the magazine in a stacked state do not fall down. The pressing device 10 includes a blade driving unit and a pressing blade 12.

[0021] The blade driving unit is installed such that the axial direction of its output shaft is parallel to the height direction of the magazine, that is, the Z direction. The blade driving unit is configured to be able to move the pressing blade 12 in the vertical direction (Z direction) along the axial direction of its output shaft and to be able to rotate the pressing blade 12 in both directions around the axis of the output shaft.

[0022] The pressing blade 12 is a plate-shaped member. The proximal end side of the pressing blade 12 is fixed to the tip of the output shaft of the blade driving unit so that it can rotate together with the output shaft of the blade driving unit. And a pressing portion 13 is formed on the distal end side of the pressing blade 12. The pressing portion 13 is shaped to mesh with the comb teeth formed on the elastic deformation portion 32 of the transfer plate 21 when facing the transfer plate 21 described later in the horizontal plane (XY plane).

[0023] Figure 1(a) shows the pressing state of the pressing device 10 in which the pressing portion 13 of the pressing blade 12 presses the sheet-like electrode 1 stacked in the magazine from the upper side in the Z direction. Figure 1(b) shows the non-pressing state of the pressing device 10 in which, from the pressing state shown in Figure 1(a), the output shaft of the blade driving portion is rotated clockwise by about 45 degrees, so that the pressing portion 13 of the pressing blade 12 is retracted from above the sheet-like electrode 1, and the pressing of the sheet-like electrode 1 by the pressing blade 12 is released. Figure 1(c) shows the pressing state of the pressing device 10 in which, from the non-pressing state shown in Figure 1(b), the output shaft of the blade driving portion is rotated counterclockwise by about 45 degrees, and after the pressing blade 12 is inserted into the space generated between the uppermost sheet-like electrode 1 and the lower sheet-like electrode 1, the pressing portion 13 presses the sheet-like electrode 1 stacked in the magazine from the upper side in the Z direction.

[0024] As shown in FIGS. 1(a) and 1(c), the pressing portion 13 of the pressing blade 12 is a portion formed at the tip side of the pressing blade 12 so as to be disposed on one end side in the X direction of the sheet-like electrode 1 stacked in the magazine and above the sheet-like electrode 1 when in the pressing state.

[0025] The transfer device 20 is a device for taking out one uppermost sheet-like electrode 1 stacked in the magazine and transferring the taken-out sheet-like electrode 1 to the receiving holder 40 of a transfer device described later. The transfer device 20 includes a transfer plate 21, a plate advancing and retreating mechanism 22 for adjusting the advancing and retreating of the transfer plate 21, and a plate deforming mechanism 23 for adjusting the deformation of the transfer plate 21.

[0026] The transfer plate 21 as a whole exhibits a comb shape with a plurality of cuts formed therein. The transfer plate 21 includes suction holding portions 31a to 31f arranged at intervals in the X direction. The suction holding portions 31a to 31f suck and hold the uppermost layer sheet-like electrode 1 stacked in the magazine from the upper side in the Z direction. A plurality of suction ports (not shown) are provided on the back surface (the surface facing the sheet-like electrode 1) of each of the suction holding portions 31a to 31f so that the sheet-like electrode 1 can be sucked and held by negative pressure. And the transfer plate 21 includes an elastically deformable elastic deformation portion 32 on one end side in the X direction and a non-elastically deformable non-elastic deformation portion 33 on the other end side in the X direction.

[0027] The elastic deformation portion 32 includes suction holding portions 31a to 31c arranged on one end side in the X direction and block bodies 32a to 32e. Block bodies 32a and 32b are arranged between the suction holding portions 31a and 31b, and block bodies 32a and 32b are arranged between the suction holding portions 31b and 31c. Also, a block body 32e is arranged between the suction holding portions 31c and 31d. When the transfer plate 21 is in a horizontal state, the suction holding portions 31a to 31c and the block bodies 32a to 32e of the elastic deformation portion 32 are arranged at predetermined intervals from each other in the X direction.

[0028] The base end sides of the suction holding portions 31a to 31c and each of the block bodies 32a to 32e include a convex portion protruding to one side in the X direction and a concave portion recessed to one side in the X direction. The suction holding portions 31a to 31c and the block bodies 32a to 32e adjacent to each other in the X direction are loosely fitted by these convex and concave portions.

[0029] The non-elastic deformation portion 33 includes suction holding portions 31d to 31f arranged on the other end side in the X direction. The non-elastic deformation portion 33 is supported by the plate advancing and retracting mechanism 22. The base end sides of the suction holding portions 31d to 31f of the non-elastic deformation portion 33 are integrally connected.

[0030] The elastically deformable portions 32 and the inelastically deformable portions 33 arranged adjacent to each other in the X direction are connected to each other by an elastic plate 34 extending in the X direction provided on the base end sides of the adsorption holding portions 31a to 31f and the back surfaces (surfaces facing the sheet-like electrode 1) of the block bodies 32a to 32e, respectively. The elastic plate 34 is a thin plate-like member formed of spring steel or the like.

[0031] The plate advancing / retreating mechanism 22 includes a plate advancing / retreating drive unit, a plate support 22b, and a connecting arm 22c. The plate advancing / retreating drive unit is installed such that the axial direction of its output shaft is parallel to the Z direction. A plate support 22b is attached to the tip of the output shaft of the plate advancing / retreating drive unit via a connecting arm 22c. The plate advancing / retreating drive unit is configured to be able to move the plate support 22b in the vertical direction (Z direction) along the axial direction of its output shaft. The plate support 22b supports by holding the transfer plate 21. The tip side of the plate support 22b is fixed to the base end side of the inelastically deformable portion 33. The base end side of the plate support 22b is fixed to the connecting arm 22c. The connecting arm 22c is a rod-shaped member for connecting the output shaft of the plate advancing / retreating drive unit and the transfer plate 21.

[0032] The plate deforming mechanism 23 includes a wire member 23a, a pulley 23b, a tension mechanism support 23c, and a tension mechanism 23d. The wire member 23a extends from the tension mechanism 23d to the adsorption holding portion 31a via the pulley 23b. The tip of the wire member 23a is attached to the adsorption holding portion 31a disposed on the side opposite to the inelastically deformable portion 33 side of the elastically deformable portion 32. The pulley 23b is attached to the inelastically deformable portion 33. Note that the pulley 23b may be attached to the plate support 22b. The pulley 23b changes the direction of the wire member 23a. The tension mechanism support 23c is attached to the tip of the output shaft of the plate advancing / retreating drive unit via a connecting arm 22c. The tension mechanism support 23c is a substantially L-shaped plate-like member that supports by holding the tension mechanism 23d. The base end side of the tension mechanism support 23c is fixed to the connecting arm 22c.

[0033] The tension mechanism 23d is fixed to the connecting arm 22c via the tension mechanism support 23c. The tension mechanism 23d winds up the wire member 23a so as to apply a tensile force to the wire member 23a. The tension mechanism 23d includes a reel around which the wire member 23a is wound and a drive source that rotates the reel. When the drive source rotates the reel, the reel winds up the wire member 23a. As a result, the plate deformation mechanism 23 lifts the adsorption holding portion 31a upward so as to pull it, and elastically deforms the elastic deformation portion 32. The tension mechanism 23d is a tension mechanism that applies a tensile force to the wire member 23a having its tip attached to the adsorption holding portion 31a disposed on the side opposite to the inelastic deformation portion 33 side of the elastic deformation portion 32.

[0034] FIG. 1(a) shows the horizontal state of the transfer plate 21 in which the transfer plate 21 on the sheet-like electrode 1 stacked in the magazine is made horizontal without elastic deformation. FIG. 1(b) shows the elastic deformation state of the transfer plate 21 in which the elastic deformation portion 32 is elastically deformed so as to warp upward from the horizontal state of FIG. 1(a), and the elastic deformation portion 32 is inclined with respect to the horizontal direction. At one end side in the longitudinal direction of the transfer plate 21 parallel to the X direction, the elastic deformation portion 32 of the transfer plate 21 in the elastic deformation state inclines the tilted portion of the uppermost sheet-like electrode 1 held by adsorption with respect to the horizontal direction. Also, at the other end side in the longitudinal direction of the transfer plate 21, the inelastic deformation portion 33 of the transfer plate 21 in the elastic deformation state presses the pressed portion of the uppermost sheet-like electrode 1 held by adsorption from above in the Z direction. FIG. 1(c) shows the transfer device 20 lifted to the position where the transfer of the sheet-like electrode 1 held by adsorption by the transfer plate 21 is performed while returning the transfer plate 21 to the horizontal state from the elastic deformation state of FIG. 1(b).

[0035] The transfer device is provided above the pressing device 10 and the transfer device 20. The transfer device is a device that receives the sheet-shaped electrode 1 adsorbed and held on the transfer plate 21 of the transfer device 20 at the receiving position from the transfer plate 21 and transports the received sheet-shaped electrode 1 to the transfer position. The transfer device includes a receiving holder 40 that receives the sheet-shaped electrode 1 adsorbed and held on the transfer plate 21 from the transfer plate 21.

[0036] The receiving holder 40 can adsorb and hold the sheet-shaped electrode 1 adsorbed and held on the transfer plate 21 from above, similar to the transfer plate 21. Further, the receiving holder 40 is configured to be movable along the longitudinal direction of the receiving holder 40 parallel to the X direction at least in the horizontal plane. The receiving holder 40 is a comb-tooth-shaped plate-like member that meshes with the comb teeth formed on the transfer plate 21 when facing the transfer plate 21 in the horizontal plane. On the back surface of the receiving holder 40 (the surface facing the sheet-shaped electrode 1), a plurality of suction ports (not shown) are provided so that the sheet-shaped electrode 1 can be adsorbed and held by negative pressure, similar to the transfer plate 21.

[0037] Subsequently, with reference to FIG. 2, the method for taking out the sheet-shaped electrode 1 by the above-described sheet taking-out device 100 will be described. FIG. 2 is a front view for explaining the method for taking out a sheet by the sheet taking-out device according to the first embodiment. FIG. 2 shows a front view of the sheet-shaped electrode 1, the pressing blade 12, and the transfer plate 21 stacked in the magazine as viewed from the other side in the Y direction.

[0038] Figure 2(a) shows the pressing state in which the sheet-like electrode 1 stacked in the magazine is pressed from above in the Z direction by the pressing portion 13 of the pressing blade 12. In this pressing state, the transfer plate 21 is lowered from above the sheet-like electrode 1 while maintaining a horizontal state by the plate advancing / retreating mechanism 22 and the plate deforming mechanism 23. That is, the transfer plate 21 is advanced so as to approach the sheet-like electrode 1 stacked in the magazine while maintaining a horizontal state. As a result, the uppermost sheet-like electrode 1 stacked in the magazine is held in a state of being adsorbed and held while being pressed by the transfer plate 21.

[0039] From the state shown in Figure 2(a), the pressing blade 12 of the pressing device 10 is moved upward to reach the state shown in Figure 2(b). When the state shown in Figure 2(b) is reached, next, as shown in Figure 2(c), the pressing blade 12 of the pressing device 10 is rotated clockwise by about 45 degrees, so that the pressing portion 13 of the pressing blade 12 is retracted from above the sheet-like electrode 1.

[0040] When the state shown in Figure 2(c) is reached, next, as shown in Figure 2(d), the elastic deformation portion 32 of the transfer plate 21 is brought into an elastically deformed state by the plate deforming mechanism 23, whereby the tilted portion on one end side in the X direction of the uppermost sheet-like electrode 1 is lifted upward. At this time, the pressed portion on the other end side in the X direction of the uppermost sheet-like electrode 1 is held in a state of being pressed by the non-elastic deformation portion 33 of the transfer plate 21.

[0041] When it comes to the state shown in Fig. 2(d), next, as shown in Fig. 2(e), the pressing blade 12 of the pressing device 10 is rotated counterclockwise by about 45 degrees and inserted into the space generated between the topmost sheet-like electrode 1 and the underlying sheet-like electrode 1. When it comes to the state shown in Fig. 2(e), next, as shown in Fig. 2(f), the pressing blade 12 of the pressing device 10 is moved downward, and the pressing portion 13 of the pressing blade 12 is returned to the pressing state. As a result, each of the stacked sheet-like electrodes 1 below the topmost sheet-like electrode 1 adsorbed and held by the transfer plate 21 is pressed from the upper side in the Z direction by the pressing portion 13 of the pressing blade 12.

[0042] When it comes to the state shown in Fig. 2(f), next, as shown in Fig. 2(g), while the transfer plate 21 is lifted by the plate advancing and retracting mechanism 22, it is returned to the horizontal state. That is, the transfer plate 21 is returned to the horizontal state while being retracted so as to be separated from the sheet-like electrodes 1 stacked in the magazine. As a result, the topmost sheet-like electrode 1 adsorbed and held by the transfer plate 21 is taken out. Then, as shown in Fig. 2(h), the transfer plate 21 is further lifted (retracted) by the plate advancing and retracting mechanism 22 and the plate deforming mechanism 23 to a position facing the receiving holder 40, and the sheet-like electrode 1 is transferred from the transfer plate 21 to the receiving holder 40.

[0043] As shown in Figs. 2(a) to 2(g), in this embodiment, until the topmost sheet-like electrode 1 is taken out, each of the sheet-like electrodes 1 stacked in the magazine is pressed from the upper side in the Z direction by the transfer plate 21 or the pressing blade 12. And as shown in Figs. 2(d) to 2(f), even while the topmost sheet-like electrode 1 adsorbed and held by the elastically deformed transfer plate 21 is being turned up, each of the sheet-like electrodes 1 stacked in the magazine is always in a state of being pressed from the upper side in the Z direction by the non-elastically deformed portion 33.

[0044] Therefore, a sufficient space can be secured so that the ratio of the pressed portion in the uppermost sheet-like electrode 1 pressed from the upper side in the Z direction does not become too small, and the pressing blade 12 can be inserted between the uppermost sheet-like electrode 1 and the lower sheet-like electrode 1 without interference. As a result, in the process of taking out the uppermost sheet-like electrode 1 from the stacked plurality of sheet-like electrodes 1, it is possible to suppress the sheet-like electrode 1 from collapsing or the position of the sheet-like electrode 1 from shifting by pressing the plurality of sheet-like electrodes 1 from the upper side in the Z direction.

[0045] Here, in order to secure a sufficient space while increasing the ratio of the pressed portion in the uppermost sheet-like electrode 1 pressed from the upper side in the Z direction, it is conceivable to greatly incline the tilted portion of the uppermost sheet-like electrode 1. On the other hand, if the tilted portion is greatly inclined, the bending R of the sheet-like electrode 1 formed by the pressed portion being pressed and the tilted portion being lifted upward becomes too small, so there is a risk that the sheet-like electrode 1 will crack.

[0046] Therefore, the transfer plate 21 is configured to regulate the bending R of the sheet-like electrode 1 adsorbed and held by the transfer plate 21 in an elastically deformed state from becoming too small. Specifically, when switching the transfer plate 21 to the elastically deformed state, when the adsorption holding portion 31a is lifted upward to elastically deform the elastic plate 34, the adjacent block bodies 32a to 32e and the adsorption holding portions 31b and 31c are sequentially lifted following the deformation of the elastic plate 34. Thereby, the elastic deformation portion 32 elastically deforms. And when the elastic deformation portion 32 elastically deforms by a predetermined amount, the lifted adsorption holding portions 31a to 31c and the block bodies 32a to 32e come into contact with each other, so that the elastic deformation portion 32 does not elastically deform by more than the predetermined amount.

[0047] In this way, since the elastic deformation portion 32 of the transfer plate 21 does not undergo elastic deformation of a predetermined amount or more, it restricts the bending R of the sheet-like electrode 1 adsorbed and held by the transfer plate 21 in the elastic deformation state from becoming too small. Thereby, cracking of the sheet-like electrode 1 can be suppressed.

[0048] In the above-described sheet take-out device 100, the elastic deformation portion 32 is disposed on one end side in the X direction of the transfer plate 21, but a configuration in which a pair of elastic deformation portions 32 are disposed on both end sides in the X direction may also be adopted. Therefore, FIG. 3 is a perspective view for explaining a modification of the sheet take-out device according to the first embodiment. With reference to FIG. 3, a sheet take-out device 200 will be described as a modification of the sheet take-out device according to the first embodiment.

[0049] The sheet take-out device 200 shown in FIG. 3 includes a pressing device 50 and a transfer device 60. The pressing device 50 includes a blade drive mechanism 51 and a pair of pressing blades 52 each having a pressing portion 53 formed at the tip side. The blade drive mechanism 51 includes a blade drive portion, a pulley support 51a, a pair of drive pulleys 51b, a pair of driven pulleys 51c, and a pair of belts 51d.

[0050] The blade drive portion is installed such that the axial direction of its output shaft is parallel to the Z direction. The blade drive portion is configured to be able to move the pulley support in the vertical direction (Z direction) along the axial direction of its output shaft and to be able to rotate one of the drive pulleys 51b in both directions around the axis of the output shaft.

[0051] The pulley support 51a is a plate-like member that rotatably supports each of the pair of drive pulleys 51b and the pair of driven pulleys 51c. The pair of drive pulleys 51b are arranged near the center in the X direction of the sheet-like electrode 1 stacked in the magazine. One of the drive pulleys 51b is attached to the tip of the output shaft of the blade drive unit and rotates as the output shaft rotates. That is, one of the drive pulleys 51b is driven by the blade drive unit. The other drive pulley 51b is arranged so that a gear 51e that rotates integrally with the other drive pulley 51b meshes with a gear 51e that rotates integrally with the one drive pulley 51b. And when the one drive pulley 51b rotates, the other drive pulley 51b is configured to rotate in the reverse direction as the gears 51e mesh with each other. That is, the other drive pulley 51b is driven by the rotation of the one drive pulley 51b. The pair of driven pulleys 51c are arranged on both ends in the X direction of the sheet-like electrode 1 stacked in the magazine. One belt 51d is wound around between the one drive pulley 51b and the one driven pulley 51c. The other belt 51d is stretched between the other drive pulley 51b and the other driven pulley 51c.

[0052] One pressing blade 52 has its proximal end fixed to the one driven pulley 51c. The other pressing blade 52 has its proximal end fixed to the other driven pulley 51c.

[0053] The pressing portion 53 of one pressing blade 52 is a portion formed at the tip side of one pressing blade 52 so as to be disposed on the one end side in the X direction of the sheet-like electrode 1 stacked in the magazine and above the sheet-like electrode 1 when in the pressing state. The pressing portion 53 of the other pressing blade 52 is a portion formed at the tip side of the other pressing blade 52 so as to be disposed on the other end side in the X direction of the sheet-like electrode 1 stacked in the magazine and above the sheet-like electrode 1 when in the pressing state. Each pressing portion 53 has a shape extending in one direction. By transmitting the rotational force of the pair of drive pulleys 51b to the pair of driven pulleys 51c via the pair of belts 51d, the pair of pressing blades 52 rotate in opposite directions to each other.

[0054] The transfer device 60 includes a transfer plate 61, a plate advancing / retreating mechanism 22 for adjusting the advancing / retreating of the transfer plate 61, and a plate deforming mechanism 23 for adjusting the deformation of the transfer plate 61. The transfer plate 61 includes a pair of elastically deformable elastic deformation portions 32 on both ends in the X direction, and a non-elastic deformation portion 33 that does not elastically deform on the central side in the X direction and between the pair of elastic deformation portions 32. One elastic deformation portion 32 includes a suction holding portion 31a disposed at one end in the longitudinal direction of the transfer plate 61 parallel to the X direction, and block bodies 32f, 32g disposed between the suction holding portions 31a, 31b. The other elastic deformation portion 32 includes a suction holding portion 31f disposed at the other end in the longitudinal direction of the transfer plate 61, and block bodies 32h, 32i disposed between the suction holding portions 31e, 31f.

[0055] The non-elastic deformation portion 33 includes suction holding portions 31b to 31e disposed on the central side in the longitudinal direction of the transfer plate 61. The non-elastic deformation portion 33 is supported by the plate advancing / retreating mechanism 22. The base ends of the suction holding portions 31b to 31e of the non-elastic deformation portion 33 are integrally connected and supported by the plate advancing / retreating mechanism 22.

[0056] The suction holding portions 31a, 31f, the block bodies 32f to 32i, and the inelastic deformation portion 33 are arranged at predetermined intervals in the X direction, and are connected to each other by elastic plates 34 provided on the base end sides of the suction holding portions 31a to 31f and the back surfaces (opposing surfaces to the sheet-like electrode 1) of the block bodies 32f to 32i respectively.

[0057] The plate advancing and retracting mechanism 22 includes a plate advancing and retracting drive portion, a plate support 22b, and a connecting arm 22c. The plate deformation mechanism 23 includes a pair of wire members 23a, a plurality of pulleys 23b, a tension mechanism support 23c, and a tension mechanism 23d. One wire member 23a extends from the tension mechanism 23d to the suction holding portion 31a via two pulleys 23b, and its tip is attached to the suction holding portion 31a. The other wire member 23a extends from the tension mechanism 23d to the suction holding portion 31f via two other pulleys 23b, and its tip is attached to the suction holding portion 31f. The plate deformation mechanism 23 lifts the suction holding portions 31a, 31f upward to elastically deform the pair of elastic deformation portions 32.

[0058] When the transfer plate 61 on the sheet-like electrode 1 stacked in the magazine elastically deforms from the horizontal state such that the pair of elastic deformation portions 32 warp upward, the transfer device 60 assumes an elastically deformed state in which the pair of elastic deformation portions 32 are inclined with respect to the horizontal direction. At both longitudinal ends of the transfer plate 61, the elastic deformation portions 32 of the transfer plate 61 in the elastically deformed state incline the tilted portion of the uppermost sheet-like electrode 1 in the horizontal direction. Also, at the longitudinal center side of the transfer plate 61, the inelastic deformation portion 33 of the transfer plate 61 in the elastically deformed state presses the pressed portion of the uppermost sheet-like electrode 1 from the upper side in the Z direction.

[0059] Here, when the sheet take-out device 100 shown in FIG. 1 is used, the center of gravity position of the pressing force by the pressing portion 13 of the pressing device 10 on each of the stacked sheet-like electrodes 1 and the center of gravity position of the pressing force by the inelastic deformation portion 33 of the transfer device 20 deviate from the center position of the uppermost sheet-like electrode 1. Since the lower sheet-like electrode 1 is in a pressed state through the upper sheet-like electrode 1, the center of gravity position of the pressing force applied to the lower sheet-like electrode 1 also deviates from its center position. Therefore, in the sheet take-out method by the sheet take-out device 100, in the process of sequentially taking out the uppermost sheet-like electrode 1 from the plurality of stacked sheet-like electrodes 1, if the pressing by the pressing portion 13 of the pressing device 10 and the pressing by the inelastic deformation portion 33 of the transfer device 20 are alternately repeated, the positions of the respective sheet-like electrodes 1 stacked in the magazine may gradually shift.

[0060] On the other hand, when the sheet take-out device 200 shown in FIG. 3 is used, the center of gravity position of the pressing force by the pressing portion 53 of the pressing device 50 on each of the stacked sheet-like electrodes 1 and the center of gravity position of the pressing force by the inelastic deformation portion 33 of the transfer device 60 coincide with the center position of the uppermost sheet-like electrode 1. Since the lower sheet-like electrode 1 is in a pressed state through the upper sheet-like electrode 1, the center of gravity position of the pressing force applied to the lower sheet-like electrode 1 also coincides with its center position. Therefore, in the sheet take-out method by the sheet take-out device 200, in the process of sequentially taking out the uppermost sheet-like electrode 1 from the plurality of stacked sheet-like electrodes 1, even if the pressing by the pressing portion 53 of the pressing device 50 and the pressing by the inelastic deformation portion 33 of the transfer device 60 are alternately repeated, the displacement of the positions of the respective sheet-like electrodes 1 stacked in the magazine is suppressed.

[0061] According to the present embodiment described above, the sheet take-out devices 100 and 200 for taking out the uppermost sheet-like electrode 1 from among a plurality of sheet-like electrodes 1 (sheet members) horizontally placed on the magazine placement portion (mounting table) in a pre-stacked state include the pressing device 10 or 50 (pressing device) and the transfer device 20 or 60.

[0062] The holding devices 10 and 50 each have holding blades 12 and 52 for pressing a plurality of sheet electrodes 1 from above in the Z direction, and are arranged on the side of the magazine placement section. The holding devices 10 and 50 are configured to be switchable between a pressing state in which the plurality of sheet electrodes 1 are pressed from above in the Z direction by the holding blades 12 and 52, and a non-pressing state in which the holding blades 12 and 52 are retracted from above the plurality of sheet electrodes 1 to release the pressing by the holding blades 12 and 52. The transfer devices 20 and 60 each have a transfer plate 61 including adsorption and holding portions 31a to 31f (a plurality of adsorption and holding portions) for adsorbing and holding the uppermost sheet electrode 1 from above in the Z direction of the plurality of sheet electrodes 1, and are arranged so as to face the holding devices 10 and 50 in the short-side direction of the sheet electrode 1 with the magazine placement section therebetween. The transfer plates 21 and 61 are configured to be switchable between a horizontal state in which the transfer plates 21 and 61 face parallel to the uppermost sheet electrode 1, and an elastically deformed state in which an elastically deformable portion 32 including the adsorption and holding portion 31a arranged at one end side in the longitudinal direction orthogonal to the short-side direction of the sheet electrode 1 or the adsorption and holding portions 31a and 31f arranged at both end sides in the longitudinal direction is elastically deformed so as to warp upward.

[0063] The sheet extraction methods by these sheet extraction devices 100 and 200 include a first step to a fifth step. In the first step, when the pressing devices 10 and 50 are in a pressed state, the delivery plates 21 and 61 in a horizontal state are pressed against the uppermost sheet-like electrode 1 from the upper side (Z-direction upper side) in the stacking direction of the plurality of sheet-like electrodes 1 to adsorb and hold the uppermost sheet-like electrode 1. In the second step, after the first step, with the pressing devices 10 and 50 in a non-pressed state and the delivery plates 21 and 61 in an elastically deformed state, the plurality of sheet-like electrodes 1 are pressed from the upper side in the Z direction by the non-elastically deformed portions 33 that do not elastically deform among the elastically deformed delivery plates 21 and 61. In the third step, after the second step, by elastically deforming the delivery plates 21 and 61 in the second step, the pressing blades 12 and 52 are inserted into the space generated between the uppermost sheet-like electrode 1 and the sheet-like electrode 1 below it, and the pressing devices 10 and 50 are returned to the pressed state again. In the fourth step, after the third step, the delivery plates 21 and 61 that adsorb and hold the uppermost sheet-like electrode 1 are retracted upward and returned to the horizontal state. In the fifth step, after the fourth step, the uppermost sheet-like electrode 1 adsorbed and held by the delivery plates 21 and 61 is delivered to the receiving holder 40.

[0064] Thereby, during the period from the first step to the fourth step until the delivery plates 21 and 61 that adsorb and hold the uppermost sheet-like electrode 1 are retracted upward, each of the sheet-like electrodes 1 stacked in the magazine can always be in a state of being pressed from the upper side in the Z direction by the pressing blades 12 and 52 or the delivery plates 21 and 61. Furthermore, from the second step to the third step, even while the delivery plates 21 and 61 are in an elastically deformed state, each of the sheet-like electrodes 1 stacked in the magazine can always be in a state of being pressed from the upper side in the Z direction by the non-elastically deformed portions 33.

[0065] Therefore, a sufficient space can be secured such that the ratio of the pressed portion in the uppermost sheet-like electrode 1 pressed from above in the Z direction does not become too small, and the pressing blades 12 and 52 can be inserted between the uppermost sheet-like electrode 1 and the lower sheet-like electrode 1 without interference. As a result, in the process of taking out the uppermost sheet-like electrode 1 from the plurality of stacked sheet-like electrodes 1, it is possible to suppress the sheet-like electrode 1 from collapsing or the position of the sheet-like electrode 1 from shifting by pressing the plurality of sheet-like electrodes 1 from above in the Z direction.

[0066] Embodiment 2 Referring to FIG. 4, the sheet take-out device 300 according to Embodiment 2 will be described. FIG. 4 is a side view and a front view for explaining the sheet take-out device according to Embodiment 2. Also, on the left side of FIG. 4, a side view of the sheet take-out device 300 as viewed from one side in the X direction is shown. On the right side of FIG. 4, a front view of the sheet take-out device 300 as viewed from one side in the Y direction is shown.

[0067] As shown in FIG. 4, the sheet take-out device 300 includes a pressing device 50 and a delivery device 80. The pressing device 50 is the same as that shown in FIG. 3, and includes a pair of pressing blades 52 each having a pressing portion 53 formed at the tip side.

[0068] The delivery device 80 includes a pair of delivery plates 61, a plate advancing / retreating mechanism 62 for adjusting the advancement and retreat of the pair of delivery plates 61, a plate deformation mechanism 63 for adjusting the deformation of the pair of delivery plates 61, and a plate switching mechanism 64 for switching the pair of delivery plates 61. The delivery plate 61 is the same as that shown in FIG. 3, and includes a pair of elastically deformable elastic deformation portions 32 at both ends in the X direction, and a non-elastic deformation portion 33 that does not elastically deform between the pair of elastic deformation portions 32 on the central side in the X direction.

[0069] The plate advancing and retracting mechanism 62 includes a rotating disk, a drive source for rotating the rotating disk, a pair of first holding members 62a, and a pair of first cam mechanisms. The rotating disk rotates in the circumferential direction around a rotating shaft 64a extending parallel to the X direction by the power of the drive source. A pair of transfer plates 61 are connected to the rotating disk via the pair of first holding members 62a and the pair of first cam mechanisms. The first holding member 62a is a plate-like member that holds the transfer plate 61. An inelastic deformation portion 33 is connected to the tip of the first holding member 62a. The first cam mechanism converts the rotational movement of the rotating disk into the advancing and retracting movement of the transfer plate 61 held by the first holding member 62a. The first cam mechanism is a cam mechanism that converts the power of the drive source into the advancing and retracting movement of the transfer plate 61. The plate advancing and retracting mechanism 62 moves the pair of transfer plates 61 held by the pair of first holding members 62a along the radial direction of the rotating disk by the rotation of the rotating disk.

[0070] The plate deformation mechanism 63 includes the above-described rotating disk, a pair of second holding members 63a, and a pair of second cam mechanisms. A pair of transfer plates 61 are connected to the rotating disk via the pair of second holding members 63a and the pair of second cam mechanisms. The second holding member 63a is a plate-like member that holds the transfer plate 61. Adsorption holding portions 31a, 31f of a pair of elastic deformation portions 32 are connected to both ends of the second holding member 63a. The second cam mechanism converts the rotational movement of the rotating disk into the advancing and retracting movement of the adsorption holding portions 31a, 31f of the transfer plate 61 held by the second holding member 63a. The second cam mechanism is a cam mechanism that converts the power of the drive source into the advancing and retracting movement of the adsorption holding portions 31a, 31f arranged on the side opposite to the inelastic deformation portion 33 side of the elastic deformation portion 32. The plate deformation mechanism 63 moves the adsorption holding portions 31a, 31f connected to the pair of second holding members 63a along the radial direction of the rotating disk by the rotation of the rotating disk.

[0071] The delivery device 80 is configured to be switchable between a first extraction state and a second extraction state. The first extraction state is a state in which, while the first process, the second process, the third process, and the fourth process are being performed by one of the delivery plates 61, the fifth process is being performed by the other delivery plate 61. The second extraction state is a state in which, while the first process, the second process, the third process, and the fourth process are being performed by the other delivery plate 61, the fifth process is being performed by one of the delivery plates 61.

[0072] The plate switching mechanism 64 includes a rotating shaft 64a, a drive source for rotating the rotating shaft 64a, and a connecting member 64b. The connecting member 64b is connected to the rotating shaft 64a. The connecting member 64b is a plate-like member for connecting the pair of delivery plates 61 to the rotating shaft 64a via a pair of first holding members 62a and a pair of second holding members 63a. The connecting member 64b is disposed between the pair of first holding members 62a and the pair of second holding members 63a. The plate switching mechanism 64 moves the pair of delivery plates 61 in the circumferential direction around the rotating shaft 64a by rotating the rotating shaft 64a, thereby switching the vertical positions of the pair of delivery plates 61.

[0073] Subsequently, with reference to FIG. 5, the sheet extraction method of the sheet-like electrode 1 by the above-described sheet extraction device 300 will be described. FIG. 5 is a side view and a front view for explaining the sheet extraction method by the sheet extraction device according to the second embodiment. Similar to FIG. 4, on the left side of each of FIGS. 5(a) to (h), a side view of the sheet extraction device 300 as viewed from one side in the X direction is shown. Also, on the right side of each of FIGS. 5(a) to (h), a front view of the sheet extraction device 300 as viewed from one side in the Y direction is shown.

[0074] Hereinafter, in order to clarify the positional relationship between the pair of transfer plates 61, one of the pair of transfer plates 61 is defined as the transfer plate 611, and the other of the pair of transfer plates 61 is defined as the transfer plate 612. Also, one of the pair of first holding members 62a is defined as the first holding member 621, and the other of the pair of first holding members 62a is defined as the first holding member 622. Further, one of the pair of second holding members 63a is defined as the second holding member 631, and the other of the pair of second holding members 63a is defined as the second holding member 632. Note that in FIG. 5, illustration of the connecting member 64b and the like is omitted.

[0075] First, while the transfer device 80 in the first take-out state performs the first step, the second step, the third step, and the fourth step by the transfer plate 611 as shown in FIGS. 5(a) to 5(f), the transfer plate 612 performs the fifth step.

[0076] FIG. 5(a) shows the pressing state of the pressing device 50 in which the sheet-like electrode 1 stacked in the magazine is pressed from above in the Z direction by the pressing portion 53 of the pressing blade 52. In this pressing state, the transfer device 80 in the first take-out state is in a retracted state in which the transfer plate 611 that is about to take out the sheet-like electrode 1 is separated from the sheet-like electrode 1 stacked in the magazine while maintaining a horizontal state by the plate advancing / retreating mechanism 62 and the plate deforming mechanism 63. At the same time, the transfer plate 612 that has adsorbed and held the already taken-out sheet-like electrode 1 is in a retracted state in which it is separated from the receiving holder 40 while maintaining a horizontal state by the plate advancing / retreating mechanism 62 and the plate deforming mechanism 63.

[0077] From the state shown in Fig. 5(a), the transfer plate 611, together with the first holding member 621 and the second holding member 631, is advanced by the plate advancing mechanism 62 and the plate deforming mechanism 63 so as to approach the sheet-like electrode 1 stacked in the magazine while maintaining a horizontal state. At the same time, the transfer plate 612, together with the first holding member 622 and the second holding member 632, is advanced by the plate advancing mechanism 62 and the plate deforming mechanism 63 so as to approach the receiving holder 40 while maintaining a horizontal state. As a result, the uppermost sheet-like electrode 1 stacked in the magazine is pressed from above in the Z direction by the pressing portion 53 and the transfer plate 611.

[0078] Then, after the pair of pressing blades 52 of the pressing device 50 are moved upward, one pressing blade 52 is rotated counterclockwise and the other pressing blade 52 is rotated clockwise by about 45 degrees respectively, so that the pressing portion 53 of the pressing blade 52 is retracted from above the sheet-like electrode 1 stacked in the magazine, resulting in the state shown in Fig. 5(b). As a result, as shown in Fig. 5(b), while the uppermost sheet-like electrode 1 stacked in the magazine is pressed from above in the Z direction by each pressing portion 53 of the pair of pressing blades 52 or the transfer plate 611, the sheet-like electrode 1 adsorbed and held by the transfer plate 612 is transferred to the receiving holder 40.

[0079] When the state shown in Fig. 5(b) is reached, next, as shown in Fig. 5(c), the pair of elastic deformation portions 32 of the transfer plate 611 are elastically deformed by the plate deforming mechanism 63 causing the second holding member 631 to retract, whereby both end sides in the X direction of the sheet-like electrode 1 are lifted upward. At this time, the central side in the X direction of the sheet-like electrode 1 is pressed from above in the Z direction by the non-elastic deformation portion 33 of the transfer plate 611.

[0080] When it comes to the state shown in Fig. 5(c), next, as shown in Fig. 5(d), one of the pair of pressing blades 52 of the pressing device 50 is rotated counterclockwise by about 45 degrees, and the other pressing blade 52 is rotated clockwise by about 45 degrees. As a result, the pair of pressing blades 52 are inserted into the space generated between the uppermost sheet-like electrode 1 and the underlying sheet-like electrode 1. When it comes to the state shown in Fig. 5(d), next, as shown in Fig. 5(e), the pair of pressing blades 52 of the pressing device 50 are moved downward, and the pressing device 50 is returned to the pressing state. As a result, each of the stacked sheet-like electrodes 1 below the uppermost sheet-like electrode 1 adsorbed and held by the transfer plate 611 is pressed from above in the Z direction by each pressing portion 53 of the pair of pressing blades 52.

[0081] When it comes to the state shown in Fig. 5(e), next, as shown in Fig. 5(f), the transfer plate 611, together with the first holding member 621 and the second holding member 631, is returned to the horizontal state while being retracted away from the sheet-like electrodes 1 stacked in the magazine by the plate advancing / retreating mechanism 62 and the plate deforming mechanism 63. As a result, the uppermost sheet-like electrode 1 adsorbed and held by the transfer plate 611 is taken out. At this time, the transfer plate 612, together with the first holding member 622 and the second holding member 632, is retracted away from the receiving holder 40 by the plate advancing / retreating mechanism 62 and the plate deforming mechanism 63.

[0082] When it comes to the state shown in Fig. 5(f), next, as shown in Fig. 5(g), the drive source rotates the rotating shaft 64a, whereby the positions of the transfer plates 611 and 612 move in the circumferential direction around the rotating shaft 64a. At this time, the receiving holder 40 that has received the taken-out sheet-like electrode 1 from the transfer plate 612 conveys the received sheet-like electrode 1 from the receiving position to the transfer position.

[0083] Then, as shown in FIG. 5(h), as the rotating shaft 64a rotates, the transfer plates 611 and 612 are moved to positions where they are inverted with respect to each other, and the vertical positions of the transfer plates 611 and 612 are switched. Thereby, the transfer device 80 is switched to the second take-out state. Further, while the receiving holder 40 is transporting the sheet-like electrode 1 received to the transfer position, another receiving holder 40 different from this receiving holder 40 moves to the receiving position.

[0084] The transfer device 80 thus set to the second take-out state performs the fifth step by the transfer plate 611 while performing the first step, the second step, the third step, and the fourth step by the transfer plate 612.

[0085] According to the present embodiment described above, the time from the take-out of the uppermost sheet-like electrode 1 to the transfer of the taken-out sheet-like electrode 1 to the receiving holder 40 can be shortened. Therefore, according to the present embodiment, in addition to the effects described in the first embodiment, the take-out of the uppermost sheet-like electrode 1 and the transfer of the taken-out sheet-like electrode 1 to the receiving holder 40 can be repeatedly performed at high speed.

[0086] Note that the present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the gist. In the above-described embodiment, by rotating the pressing blades 12 and 52 around an axis extending in the Z-axis direction, the pressing blades 12 and 52 are inserted into the space generated between the uppermost sheet-like electrode 1 and the lower sheet-like electrode 1 and retracted from above the sheet-like electrode 1, but the configuration is not limited to this. For example, by moving the pressing blades 12 and 52 in the X direction or the Y direction, the pressing blades 12 and 52 may be inserted into the space generated between the uppermost sheet-like electrode 1 and the lower sheet-like electrode 1 and retracted from above the sheet-like electrode 1.

Explanation of Reference Numerals

[0087] 1 Sheet-like electrode 10, 50 Pressing device 12, 52 Pressing blade 13, 53 Pressing part 20, 60, 80 Delivery device 21, 61, 611, 612 Delivery plate 22, 62 Plate advancing and retracting mechanism 22b Plate support 22c Connecting arm 23, 63 Plate deforming mechanism 23a Wire member 23b Pulley 23c Tension mechanism support 23d Tension mechanism 31a~31f Suction holding part 32 Elastic deformation part 32a~32i Block body 33 Non-elastic deformation part 34 Elastic plate 40 Receiving holder 51 Blade drive mechanism 51a Pulley support 51b Driving pulley 51c Driven pulley 51d Belt 51e Gear 62a, 621, 622 First holding member 63a, 631, 632 Second holding member 64 Plate switching mechanism 64a Rotation shaft 64b Connecting member 100, 200, 300 Sheet take-out device B Pressing blade, P Delivery plate, S Sheet member

Claims

1. A sheet taking-out method by a sheet taking-out device for taking out the uppermost sheet member from a plurality of sheet members horizontally placed on a mounting table in a pre-laminated state, wherein the sheet taking-out device, has a pressing blade for pressing the plurality of sheet members from above in the stacking direction thereof, and is arranged on the side of the mounting table, and can be switched between a pressing state in which the plurality of sheet members are pressed from above in the stacking direction by the pressing blade and a non-pressing state in which the pressing blade is retracted from above the plurality of sheet members to release the pressing by the pressing blade; a pressing device configured to be; has a transfer plate including a plurality of suction holding portions for sucking and holding the uppermost sheet member from above in the stacking direction of the plurality of sheet members, and is arranged so as to face the pressing device in the short side direction of the sheet member with the mounting table interposed therebetween, and the transfer plate can be switched between a horizontal state in which the transfer plate faces parallel to the uppermost sheet member and an elastic deformation state in which an elastically deformable elastic deformation portion including the suction holding portions arranged at one end side or both end sides in the longitudinal direction orthogonal to the short side direction of the sheet member is elastically deformed so as to warp upward; a transfer device configured to be; a first step of pressing the transfer plate in the horizontal state against the uppermost sheet member from above in the stacking direction of the plurality of sheet members to suck and hold the uppermost sheet member when the pressing device is in the pressing state; a second step of pressing the plurality of sheet members from above in the stacking direction by a non-elastic deformation portion that does not elastically deform among the elastically deformed portions of the transfer plate in the elastic deformation state while changing the pressing device to the non-pressing state and changing the transfer plate to the elastic deformation state after the first step; a third step of inserting the pressing blade into the space generated between the uppermost sheet member and the sheet member below it by changing the transfer plate to the elastic deformation state in the second step and changing the pressing device back to the pressing state after the second step; a fourth step of returning the transfer plate to the horizontal state while retracting the transfer plate holding the uppermost sheet member adsorbed and held upward after the third step; a fifth step of transferring the uppermost sheet member adsorbed and held by the transfer plate to a receiving holder after the fourth step; A sheet extraction method comprising

2. The sheet extraction device comprises a plate deformation mechanism for elastically deforming the elastic deformation part, The plate deformation mechanism is a tension mechanism that applies a tensile force to a wire member whose tip is attached to the suction holding part disposed on the side opposite to the inelastic deformation part side of the elastic deformation part, or a cam mechanism that converts the power of a drive mechanism into the forward and backward movement of the suction holding part disposed on the side opposite to the inelastic deformation part side of the elastic deformation part. The sheet extraction method according to claim 1.

3. The transfer plate is configured to regulate that the bending R of the sheet member suction-held by the transfer plate in the elastically deformed state becomes too small. The sheet extraction method according to claim 1.

4. The transfer device comprises a pair of the transfer plates, a first extraction state in which the fifth step is performed by the other transfer plate while the first step, the second step, the third step, and the fourth step are being performed by one of the transfer plates, and a second extraction state in which the fifth step is performed by one of the transfer plates while the first step, the second step, the third step, and the fourth step are being performed by the other transfer plate. The sheet extraction method according to claim 1, which is configured to be switchable to

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