Stacked devices

Abstract

This invention provides a stacking apparatus. It shortens the stacking time when obtaining a stacked body by sequentially attracting and holding stacked objects. The stacking apparatus (100) includes: a stage (10) for placing one main surface of a stacked object (1); and a stacking head (20) capable of attracting and holding the other main surface of the stacked object (1) on the stage (10). The stacking head (20) includes: a main surface (21), an outer edge (22) formed in connection with the main surface (21) to form a recess (26), and a holding portion (23) within the recess (26) movable in a direction approaching and moving away from the main surface (21), and provided with a gap between it and the outer edge (22). An attraction hole (24) opening into the recess (26) is provided on the main surface (21).

Description

Technical Field

[0001] This invention relates to a stacking device. Background Technology

[0002] Previously, there were known devices that attracted and held objects.

[0003] As one such device, it is disclosed in Patent Document 1. Figure 10 The apparatus 200 shown has the following structure. This apparatus 200 includes an upper surface wall 201, peripheral side walls 202, and a flow path forming plate 203. It also has a suction port 204 communicating with the upper surface wall 201. By drawing air from the suction port 204, the flow path forming plate 203 adsorbs and holds multiple stacked sheets 205. More specifically, it is configured such that minute gaps are formed between the peripheral side surfaces of the stacked sheets 205 and the peripheral side walls 202, and between the flow path forming plate 203 and the upper surface wall 201. Furthermore, the flow path forming plate 203 has tiny holes for airflow between the two main surfaces. By drawing air from the suction port 204, the flow path forming plate 203 can adsorb and hold the multiple stacked sheets 205.

[0004] Patent Document 1: Japanese Patent Application Publication No. 4-133918

[0005] Here, a structure can be considered as follows: by using the device 200 described in Patent Document 1, sheets 205 supplied at multiple supply positions are sequentially attracted and held to form a laminate of multiple sheets. However, in the device 200 described in Patent Document 1, when the number of sheets 205 held by the flow path forming plate 203 is large, the distance between the sheet 205 at the supply position and the lowest sheet 205 among the multiple sheets 205 held by the device becomes shorter, but when the number of sheets 205 held by the device is small, the distance becomes longer. Therefore, when the number of sheets 205 held by the device is small, the moving distance of the device 200 when it descends and approaches the sheet at the supply position becomes longer, thereby increasing the time required for lamination. Summary of the Invention

[0006] The present invention is an invention to solve the above-mentioned problems, and its object is to provide a stacking device that can shorten the stacking time when obtaining a stacked body by sequentially attracting and holding stacked objects.

[0007] The stacking device of the present invention is characterized by comprising:

[0008] A stage, used to hold a main surface of stacked objects; and

[0009] The stacking head is capable of attracting and holding the other main surface of the stacked object on the aforementioned stage.

[0010] The above-mentioned stacked head has:

[0011] Main face;

[0012] The outer edge is formed in connection with the aforementioned main surface to constitute a recess; and

[0013] The retaining portion is movable within the aforementioned recess in both directions of approach to and away from the aforementioned main surface, and is provided such that a gap exists between it and the aforementioned outer edge portion.

[0014] An suction hole with an opening on the recessed side is provided on the main surface.

[0015] According to the lamination apparatus of the present invention, since the holding portion that adsorbs and holds the other main surface of the laminated object can move in both a direction approaching the main surface of the lamination head and a direction moving away from the main surface of the lamination head, the distance between one main surface of the outermost laminated object and the other main surface of the laminated object on the stage can be fixed regardless of the amount of laminated object adsorbed and held. Therefore, regardless of the amount of laminated object adsorbed and held by the lamination head, the moving distance of the lamination head when approaching the laminated object can be, for example, fixed, thus shortening the lamination time compared to a structure where the position of the holding portion is fixed. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view schematically illustrating the structure of a stacking device in one embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram showing the structure of the stacked head as viewed from the holding surface side of the holding part.

[0018] Figure 3 The diagrams schematically illustrate the structure of a stacked head where the shape of the vent hole when viewed from the holding surface of the holding part corresponds to the shape of the three sides of a rectangle. (a) shows the case where the vent hole is not open on the outer peripheral surface of the outer edge, and (b) shows the case where the vent hole is open on the outer peripheral surface of the outer edge.

[0019] Figure 4 The diagrams schematically illustrate the structure of a stacked head where the shape of the vent hole when viewed from the holding surface of the holding part corresponds to the shape of the two sides of a rectangle. (a) shows the case where the vent hole is not open on the outer peripheral surface of the outer edge, and (b) shows the case where the vent hole is open on the outer peripheral surface of the outer edge.

[0020] Figure 5The diagrams schematically illustrate the structure of a stacked head where the shape of the vent hole corresponds to one side of a rectangle when viewed from the holding surface side of the holding part. (a) shows the case where the vent hole is not open on the outer peripheral surface of the outer edge, and (b) shows the case where the vent hole is open on the outer peripheral surface of the outer edge.

[0021] Figure 6 (a) is a graph showing the results of simulation of airflow when gas is discharged from the exhaust port, and (b) is a graph showing the results of simulation of airflow when gas is not discharged from the exhaust port.

[0022] Figure 7 (a) is a cross-sectional view showing the position of the holding part when the amount of laminated objects held by the holding part is small, and (b) is a cross-sectional view showing the position of the holding part when the amount of laminated objects held by the holding part is large.

[0023] Figure 8A This is a cross-sectional view showing the position of the holding part when the quantity of stacked objects on the stage is small.

[0024] Figure 8B This is a cross-sectional view showing the position of the holding part when there are many stacked objects on the stage and the stage is constructed in the same way as the stacking head.

[0025] Figure 9 This diagram illustrates a method for obtaining a laminate by sequentially adsorbing and holding objects placed on four stages using a laminating head.

[0026] Figure 10 This is a cross-sectional view showing the structure of the device for attracting and retaining sheet as described in Patent Document 1.

[0027] Explanation of reference numerals in the attached figures

[0028] 1… Stacked object; 1a… One main surface of the stacked object; 1b… Another main surface of the stacked object; 10… Stage; 10a… First stage; 10b… Second stage; 10c… Third stage; 10d… Fourth stage; 11… Gas ejection section; 20… Stacking head; 21… Upper surface section; 21a… First main surface; 21b… Second main surface; 22… Outer edge section; 23… Holding section; 23a… Holding surface; 24… Suction hole; 25… Exhaust hole; 26… Recess; 30… Control section; 40… Air barrier; 100… Stacking device. Detailed Implementation

[0029] The following describes embodiments of the present invention and provides a detailed explanation of its features.

[0030] Figure 1 This is a cross-sectional view schematically illustrating the structure of a stacking device 100 in one embodiment of the present invention. Figure 2 This is a schematic diagram showing the structure of the stacked head 20 as viewed from the holding surface 23a side of the holding part 23.

[0031] In one embodiment, the stacking apparatus 100 includes a stage 10 and a stacking head 20. The stacking apparatus 100 in this embodiment also includes a control unit 30. The stacking apparatus 100 in this embodiment is configured to obtain a stacked body composed of multiple stacked objects 1 by repeatedly attracting and holding the stacked object 1 placed on the stage 10 using the stacking head 20.

[0032] There are no particular restrictions on the shape of the stage 10 used to hold one main surface 1a of the stacked object 1. For example... Figure 1 As shown, the stage 10 may include a gas ejection section 11 capable of ejecting gas toward the stacked object 1 it is placed on. For example, the gas ejection section 11 includes a gas ejection hole on the stage 10 with an opening on the side where the stacked object 1 is placed, from which gas is ejected. The ejected gas is, for example, air. This gas ejection hole may also function as a suction hole for holding the stacked object 1 on the stage 10. In this case, the stacked object 1 can be held by suction via the gas ejection hole.

[0033] The laminated object 1 is, for example, a sheet-like component. As an example, the laminated object 1 is a resin film, a first metal foil, and a second metal foil, which are components of a battery.

[0034] The resin film is a sheet-like component that functions as a separator in a battery, and is made of, for example, polyethylene. In this embodiment, the resin film has a rectangular shape; for example, it can be cut into strips and used.

[0035] The first metal foil is a sheet-like component that functions as one of the electrodes in the positive and negative terminals of the battery, and is made of, for example, aluminum. In this embodiment, the first metal foil has a rectangular shape. Alignment marks for alignment may also be provided on the first metal foil.

[0036] The second metal foil is a sheet-like component that functions as another electrode in the battery, either the positive or negative electrode; for example, it is made of aluminum. In this embodiment, the second metal foil has a rectangular shape. Alignment marks for positioning may also be provided on the second metal foil.

[0037] When the stacked object 1 is the aforementioned resin film, first metal foil, and second metal foil, the stacking head 20 sequentially stacks the resin film, first metal foil, resin film, and second metal foil, and stacks multiple sets of the aforementioned four stacked objects 1 as a group, thereby obtaining a stacked body constituting the main part of the battery.

[0038] The stacking head 20 is configured to have a main surface 21, an outer edge 22 and a holding part 23, and can hold the stacked object 1 on the stage 10 by attracting and adsorbing the other main surface 1b.

[0039] In this embodiment, the main surface 21 has a flat plate shape, which has a surface opposite to the holding portion 23, namely a first main surface 21a, and a surface opposite to the first main surface 21a, namely a second main surface 21b. When viewed in the moving direction of the holding portion 23 (described later), the main surface 21 has a rectangular shape. However, the shape of the main surface 21 is not limited to a rectangle.

[0040] An attraction hole 24 is provided on the main surface 21, opening onto the recess 26 formed by the main surface 21 and the outer edge 22, i.e., the first main surface 21a. In this embodiment, the attraction hole 24 is provided in a manner that connects the first main surface 21a and the second main surface 21b.

[0041] The outer edge 22 is formed in connection with the main face 21 so as to form a recess 26 together with the main face 21. Figure 2 As shown, in this embodiment, when viewed from the holding surface 23a side of the holding portion 23 described later, the outer periphery of the outer edge portion 22 is a rectangle with the same shape as the outer periphery of the main surface portion 21.

[0042] In this embodiment, the outer edge 22 has an exhaust port 25 for discharging gas at a position opposite to the main surface 21. The position opposite to the main surface 21 refers to the surface 22a of the outer edge 22 that is opposite to the outer surface of the main surface 21, i.e., the second main surface 21b. The gas discharged from the exhaust port 25 is, for example, air. In this embodiment, the exhaust port 25 extends to the second main surface 21b of the main surface 21 and also opens on the second main surface 21b side.

[0043] like Figure 2 As shown, when viewed from the holding surface 23a side of the holding portion 23, the vent 25 has a rectangular annular shape according to the shape of the outer edge portion 22. However, when viewed in the moving direction of the holding portion 23, the shape of the vent 25 is not limited to a rectangular annular shape.

[0044] Figure 3Figure (a) is a schematic diagram showing the structure in which the shape of the vent hole 25, when viewed from the holding surface 23a side of the holding part 23, corresponds to the shape of the three sides of a rectangle. That is, when viewed from the holding surface 23a side of the holding part 23, the vent hole 25 is provided only in the portion of the outer edge 22, which has a rectangular annular shape, corresponding to the three sides of the rectangle. Figure 3 As shown in (b), the vent 25 may also open on the outer peripheral surface of the outer edge 22.

[0045] Figure 4 Figure (a) is a schematic diagram showing the structure in which the shape of the vent hole 25, when viewed from the holding surface 23a side of the holding part 23, corresponds to the shape of the two sides of a rectangle. That is, when viewed from the holding surface 23a side of the holding part 23, the vent hole 25 is provided only in the portion of the outer edge 22, which has a rectangular annular shape, corresponding to the two sides of the rectangle. Figure 4 As shown in (b), the vent 25 may also open on the outer peripheral surface of the outer edge 22.

[0046] Figure 5 Figure (a) is a schematic diagram showing the structure in which the shape of the vent hole 25, when viewed from the holding surface 23a side of the holding part 23, corresponds to one side of a rectangle. That is, when viewed from the holding surface 23a side of the holding part 23, the vent hole 25 is provided only in the portion of the outer edge 22, which has a rectangular annular shape, corresponding to one side of the rectangle. Figure 5 As shown in (b), the vent 25 may also open on the outer peripheral surface of the outer edge 22.

[0047] like Figures 2-5 As shown, the vent 25 can be formed as a slit or as multiple arranged circular holes.

[0048] In the stacking apparatus 100 of this embodiment, gas is discharged from the exhaust port 25 at least when the stacking head 20 moves while the stacking object 1 is held by the holding portion 23. By discharging gas from the exhaust port 25, an air barrier is created, which can prevent wind from flowing from the outside of the outer edge portion 22 to the inside when the stacking head 20 moves.

[0049] Figure 6 The results of simulations show the airflow under the condition that gas is discharged from the exhaust port 25 and the condition that gas is not discharged from the exhaust port 25. Figure 6 (a) is a diagram showing the airflow when gas is discharged from exhaust port 25. Figure 6 (b) is a diagram showing the airflow when gas is not discharged from exhaust port 25. Furthermore, in Figure 6 In (a), it is shown that in relation to Figure 1The structure shown has opposite orientations, meaning the exhaust port 25 of the outer edge 22 is open upwards, and the airflow when gas is discharged upwards is as follows: The gas discharge velocity is 100 m / s.

[0050] like Figure 6 As shown in (a), since an air barrier 40 is created by discharging gas from the exhaust port 25, it is possible to suppress the flow of wind from the outside of the outer edge 22 to the inside. Furthermore, as in this embodiment, the same applies when the exhaust port 25 of the outer edge 22 faces downwards and gas is discharged downwards. Additionally, the simulation was conducted with gas discharged while the stacking head 20 is stopped, but when the stacking head 20 actually moves, wind is particularly prone to flow from the outside of the outer edge 22 to the inside, thus the effect of the air barrier 40 in suppressing wind flow is enhanced. In other words, by discharging gas from the exhaust port 25, the stacked object 1 held by the holding portion 23 located inside the outer edge 22 can be suppressed from the influence of wind flowing in from the outside, thus suppressing positional displacement of the stacked object 1 and stably transporting the stacked object 1.

[0051] Furthermore, according to simulations conducted by the inventors, when gas is not discharged from the vent 25, the holding force of the stacked object 1 held by the holding part 23 is 101N, but when gas is discharged from the vent 25, the holding force of the stacked object 1 increases to 126N. That is, by discharging gas from the vent 25, the stacked object 1 held by the holding part 23 is less susceptible to wind influence, thus increasing the holding force.

[0052] In addition, Figures 3-5 In the structure shown, if an air barrier is also generated in the direction of movement of the stacked head 20, it is possible to suppress the flow of wind from the outside to the inside of the outer edge 22 as the stacked head 20 moves. However, as Figure 2 As shown, by configuring vent holes 25 corresponding to the four sides of the outer edge 22 which has a rectangular annular shape, airflow from the outside to the inside of the outer edge 22 can be suppressed regardless of which direction the stacking head 20 moves in the horizontal direction. Therefore, it is preferable that the vent holes 25 have an annular shape surrounding the recess 26.

[0053] The retaining part 23 is movable within the recess 26 in both directions of approaching the main surface 21 and in directions of moving away from the main surface 21, such as... Figure 1 As shown, the retaining portion 23 is provided with a gap P1 between it and the outer edge portion 22. Furthermore, when the retaining portion 23 is closest to the main surface portion 21, a gap P2 also exists between the retaining portion 23 and the first main surface 21a of the main surface portion 21. The size of the gap P1 between the retaining portion 23 and the outer edge portion 22 is, for example, 0.5 mm or more and 1.0 mm or less.

[0054] In this embodiment, the holding part 23 has a flat plate shape, and its shape is rectangular when viewed in its own direction of movement. Figure 2 As shown, when viewed from the holding surface 23a side of the holding part 23, the gap P1 between the holding part 23 and the outer edge part 22 has a rectangular annular shape. However, the shape of the gap P1 between the holding part 23 and the outer edge part 22 when viewed from the holding surface 23a side of the holding part 23 is not limited to a rectangular annular shape.

[0055] The holding part 23 adsorbs and holds the stacked object 1 on the surface opposite to the main surface 21, namely the holding surface 23a. That is, as described later, the stacked object 1 is adsorbed and held on the holding surface 23a of the holding part 23 by suction through the suction hole 24.

[0056] The control unit 30 is configured to control the position of the holding part 23 relative to the main surface 21 of the stacking head 20 when the holding part 23 holds the stacked object 1 on the stage 10, based on at least one of the amount of the stacked object 1 held by the holding part 23 and the amount of the stacked object 1 on the stage 10. Here, the position of the holding part 23 refers to its position in the height direction, that is, the position of the holding part 23 in the direction of movement relative to the main surface 21, both in the direction of approaching and in the direction of moving away from the main surface 21.

[0057] Specifically, the control unit 30 controls the position of the holding unit 23 relative to the main surface 21 of the stacking head 20, so that the distance L1 between one main surface 1a of the stacked object 1 held by the holding unit 23 and the other main surface 1b of the stacked object 1 on the stage 10 (refer to...) Figure 7 The distance L1 is defined as follows: When the holding part 23 holds multiple stacked objects 1, the distance L1 refers to the distance between one main surface 1a of the outermost stacked object 1 held by the holding part 23 (i.e., the last stacked object 1 held) and another main surface 1b of the stacked object 1 on the stage 10. When the holding part 23 is not holding any stacked objects 1, the distance L1 refers to the distance between the holding surface 23a of the holding part 23 and another main surface 1b of the stacked object 1 on the stage 10. Furthermore, the fixed distance L1, which is maintained by controlling the position of the holding part 23 relative to the main surface 21 to make the distance L1 a fixed distance, also includes 0. The closer the distance L1 is to 0, the smaller the positional deviation when the stacked object 1 is attracted and held by the holding part 23. For example, if L1 = 1 mm, the positional deviation is approximately ±0.2 mm.

[0058] Figure 7 (a) is a cross-sectional view showing the position of the holding part 23 when the amount of the laminated object 1 held by the holding part 23 is small. Figure 7(b) is a cross-sectional view showing the position of the holding part 23 when the amount of stacked object 1 held by the holding part 23 is relatively large. Here, the number of stacked object 1 on the stage 10 is one. In order to make the aforementioned distance L1 a fixed distance, when the amount of stacked object 1 held by the holding part 23 is small, the holding part 23 holds the stacked object 1 on the stage 10 at a position close to the stage 10. Figure 7 (a)). On the other hand, when the amount of the stacked object 1 held by the holding part 23 is large, the holding part 23 holds the stacked object 1 on the stage 10 at a position away from the stage 10. Figure 7 (b)

[0059] That is, when the same number of stacked objects 1 are placed on the stage 10, and the holding part 23 sequentially adsorbs and holds the stacked objects 1, the control part 30 controls the position of the holding part 23 relative to the main surface 21 of the stacking head 20 when holding the stacked objects 1 on the stage 10, according to the amount of stacked objects 1 held by the holding part 23.

[0060] Here, when the same number of stacked objects 1 are placed on the stage 10, the amount of stacked objects 1 held by the holding part 23 is related to the number of times the holding part 23 adsorbs and holds the stacked objects 1 on the stage 10. Therefore, when the same number of stacked objects 1 are placed on the stage 10, the control unit 30 can also control the position of the holding part 23 relative to the main surface 21 of the stacking head 20 based on the number of times the holding part 23 adsorbs and holds the stacked objects 1 on the stage 10. According to this structure, the position control of the holding part 23, which is used to make the aforementioned distance L1 a fixed distance, can be simplified.

[0061] The following describes the control method for cases where the quantity of stacked objects 1 placed on the stage 10 is different. Figure 8A This diagram shows the position of the holding part 23 when the amount of stacked objects 1 on the stage 10 is relatively small. Figure 8B This diagram shows the position of the holding part 23 when there are a large number of stacked objects 1 on the stage 10. Figure 8B The stage 10 shown, as described later, has the same construction as the stacking head 20. For ease of explanation, in Figure 8A and Figure 8B In this case, the holding part 23 holds the same amount of stacked objects 1. To make the aforementioned distance L1 a fixed distance, when the amount of stacked objects 1 on the stage 10 is small, the holding part 23 adsorbs and holds the stacked objects 1 on the stage 10 at a position close to the stage 10. Figure 8AOn the other hand, when the stacked objects 1 on the stage 10 are made of porous materials, multiple stacked objects 1 can be adsorbed and held on the stage 10. In this case, the holding part 23 adsorbs and holds the stacked objects 1 on the stage 10 at a position away from the stage 10. In addition, in order to place multiple stacked objects 1 on the stage 10, especially the stacked objects 1 located on the outermost side of the upper surface of the stage 10, without positional displacement, it can be achieved by making the structure of the stage 10 the same as that of the stacking head 20 described above. Figure 8B ).

[0062] exist Figure 8A and Figure 8B Although the amount of stacked objects 1 held by the holding part 23 is the same, the amount of stacked objects 1 held by the holding part 23 changes because the holding part 23 repeatedly performs the action of adsorbing and holding the stacked objects 1 on the stage 10. Therefore, in the structure where the amount of stacked objects 1 on the stage 10 changes, the control part 30 controls the position of the holding part 23 relative to the main surface 21 of the stacking head 20 when holding the stacked objects 1 on the stage 10 based on the amount of stacked objects 1 held by the holding part 23 and the amount of stacked objects 1 on the stage 10.

[0063] In this way, when the holding part 23 holds the stacked object 1 on the stage 10, the position of the holding part 23 relative to the main surface 21 of the stacking head 20 is adjusted so that the distance L1 between one main surface 1a of the stacked object 1 held by the holding part 23 and the other main surface 1b of the stacked object 1 on the stage 10 becomes a fixed distance. This shortens the stacking time of the stacked object 1 compared to a structure where the position of the holding part 23 is fixed. That is, in a structure where the position of the holding part 23 is fixed, when the amount of stacked object 1 held by the holding part 23 is small, the aforementioned distance L1 becomes longer, thus increasing the moving distance required to bring the stacking head 20 close to the stacked object 1, and consequently, increasing the time required for stacking. However, in the stacking apparatus 100 of this embodiment, by adjusting the position of the holding part 23 relative to the main surface 21 of the stacking head 20, the distance L1 mentioned above becomes a fixed distance. Thus, even when the amount of the stacked object 1 held by adsorption is small, the moving distance when the stacking head 20 is brought close to the stacked object 1 can be the same, for example, thus shortening the time required for stacking.

[0064] Furthermore, in a structure where the position of the holding part 23 is fixed, when the moving distance when the stacking head 20 approaches the stacking object 1 is the same, if the amount of the stacking object 1 held by the holding part 23 is small, the aforementioned distance L1 becomes longer. Therefore, there is a possibility of positional displacement when the stacking object 1 is attracted and held by the holding part 23. In contrast, in the stacking apparatus 100 of this embodiment, by making the aforementioned distance L1 a fixed distance, positional displacement when the stacking object 1 is attracted and held by the holding part 23 can be suppressed.

[0065] (Cascading methods for cascading objects)

[0066] The following is for reference Figure 9 A method for sequentially adsorbing and holding multiple stacked objects 1 by a stacking head 20 and stacking them will be described. Here, a structure will be described that has four stages 10: a first stage 10a, a second stage 10b, a third stage 10c, and a fourth stage 10d, and the stacked objects 1 are placed on each stage 10a to 10d. However, the number of stages 10 is not limited to four. Furthermore, in Figure 9 The image shows the four stages 10, from the first stage 10a to the fourth stage 10d, arranged in a row. However, the arrangement of the four stages 10 is not limited to the arrangement in a row.

[0067] As an example, on the first stage 10a, a resin film that functions as a separator for a battery is placed as the laminated object 1. On the second stage 10b, a first metal foil that functions as one of the positive and negative electrodes of the battery is placed as the laminated object 1. On the third stage 10c, the resin film that functions as a separator for the battery is placed as the laminated object 1. On the fourth stage 10d, a second metal foil that functions as the other electrode of the battery is placed as the laminated object 1.

[0068] First, such as Figure 9 As shown in (a), the stacking head 20 attracts and holds the stacked object 1 on the first stage 10a. Therefore, at least one of the stacking head 20 and the first stage 10a moves in a direction of mutual approach so that the first stage 10a is positioned below the stacking head 20. Here, the structure is described as the stacking head 20 moving above the first stage 10a. However, the first stage 10a may also move to approach the stacking head 20, or both the stacking head 20 and the first stage 10a may move in the direction of approach.

[0069] With the first stage 10a positioned below the stacking head 20, the stacking head 20 descends toward the first stage 10a. Furthermore, before the stacking head 20 reaches its target stop position, the holding portion 23 of the stacking head 20 moves such that the distance L1 between the holding surface 23a of the holding portion 23 and the other main surface 1b of the stacked object 1 placed on the first stage 10a becomes a fixed distance. The position of the holding portion 23 is controlled by the control unit 30 as described above.

[0070] After controlling the position of the holding part 23 to make the aforementioned distance L1 a fixed distance, the object to be stacked 1 is attracted through the suction hole 24. By attracting through the suction hole 24, the space surrounded by the main surface 21, the outer edge 22, and the holding part 23 becomes negative pressure. As a result, air flows from below the stacking head 20 into the aforementioned negative pressure space through the gap P1 between the holding part 23 and the outer edge 22. Therefore, the object to be stacked 1, which is placed on the first stage 10a at a position below the stacking head 20, is drawn upward and adhered to the holding surface 23a of the holding part 23.

[0071] Furthermore, in order to suppress positional shift of the stacked object 1 held by adsorption, it is preferable that the stacking head 20 adjusts its position relative to the stacked object 1 on the first stage 10a before attracting the stacked object 1. However, it is also possible that the position adjustment is not performed by the stacking head 20, but by the first stage 10a, or by both the stacking head 20 and the first stage 10a.

[0072] Here, when suction is performed via suction hole 24, it is preferable to eject gas toward the stacked object 1 through gas ejection part 11 of first stage 10a. By ejecting gas toward the stacked object 1 through gas ejection part 11, the transfer of the stacked object 1 from the first stage 10a to the holding part 23 can be performed more smoothly.

[0073] Furthermore, by ejecting gas from the gas ejection section 11, even if the holding section 23 and the first stage 10a are separated by, for example, about 1 mm, positional shift can be effectively suppressed when the stacked object 1 is transferred from the first stage 10a to the holding section 23.

[0074] Furthermore, as described above, when the gas ejection hole provided in the gas ejection section 11 also functions as an attraction hole for attracting and holding the stacked object 1, the timing of the transfer of the stacked object 1 from the first stage 10a to the holding section 23 can be switched from attraction to gas ejection.

[0075] If the stacked object 1 is held by the holding part 23, the stacking head 20 rises and begins to move toward the second stage 10b. During the movement of the stacking head 20 while the stacked object 1 is held by the holding part 23, gas is discharged from the exhaust port 25 of the outer edge 22. Thus, as described above, an air barrier is created, preventing wind from flowing inward from the outside of the outer edge 22, and stably transporting the stacked object 1 held by the holding part 23. Alternatively, it can be configured such that gas is always discharged from the exhaust port 25.

[0076] Next, the stacking head 20 moves to a position above the second stage 10b. However, the second stage 10b may also move to a position below the stacking head 20, or both the stacking head 20 and the second stage 10b may move in a direction of proximity. With the second stage 10b below the stacking head 20, the stacking head 20 descends toward the second stage 10b. Here, before the stacking head 20 reaches the target stop position, the holding part 23 of the stacking head 20 moves so that the distance L1 between one main surface 1a of the stacked object 1 held by the holding part 23 and the other main surface 1b of the stacked object 1 on the second stage 10b becomes a fixed distance. Furthermore, "before the stacking head 20 reaches the target stop position" refers to the period during which the stacking head 20 rises after adsorbing and holding the stacked object 1 on the first stage 10a, moves to a position above the second stage 10b, begins to descend, and stops at the target stop position. The same applies to subsequent operations.

[0077] Subsequently, using the method described above, the holding part 23 adsorbs and holds the stacked object 1 placed on the second stage 10b. Figure 9 (b) If the stacked object 1 is held by the holding part 23, the stacking head 20 rises.

[0078] Next, the stacking head 20 moves to a position above the third stage 10c. However, the third stage 10c may also move to a position below the stacking head 20, or both the stacking head 20 and the third stage 10c may move in a direction of proximity. With the third stage 10c below the stacking head 20, the stacking head 20 descends toward the third stage 10c. Here, before the stacking head 20 reaches the target stopping position, the holding part 23 of the stacking head 20 moves so that the distance L1 between one main surface 1a of the stacked object 1 held by the holding part 23 and the other main surface 1b of the stacked object 1 on the third stage 10c becomes a fixed distance.

[0079] Subsequently, using the method described above, the holding part 23 adsorbs and holds the stacked object 1 placed on the third stage 10c. Figure 9 (c) If the stacked object 1 is held by the holding part 23, the stacking head 20 rises.

[0080] Next, the stacking head 20 moves to a position above the fourth stage 10d. However, the fourth stage 10d may also move to a position below the stacking head 20, or both the stacking head 20 and the fourth stage 10d may move in a direction of proximity. With the fourth stage 10d below the stacking head 20, the stacking head 20 descends toward the fourth stage 10d. Here, before the stacking head 20 reaches the target stopping position, the holding part 23 of the stacking head 20 moves so that the distance L1 between one main surface 1a of the stacked object 1 held by the holding part 23 and the other main surface 1b of the stacked object 1 on the fourth stage 10d becomes a fixed distance.

[0081] Subsequently, using the method described above, the holding part 23 adsorbs and holds the stacked object 1 placed on the fourth stage 10d. Figure 9 (d) If the stacked object 1 is held by the holding part 23, the stacking head 20 rises.

[0082] Subsequently, by repeating the above actions, the holding part 23 of the stacking head 20 sequentially adsorbs and holds multiple stacked objects 1. Thus, a stacked body with multiple stacked objects 1 is obtained. Furthermore, by simultaneously providing a structure for the stacking head 20 to pick up the stacked objects 1 and a structure for adsorbing and holding the stacked objects 1, the stacking process can be simplified because there is no need to move the stacked objects 1 to other stacking parts after picking them up.

[0083] Furthermore, since there is no need for a claw-shaped fixing member (not shown) that contacts at least one of the other main surface 1b of the outermost stacked object 1 on the stage 10 and the main surface 1a of the outermost stacked object 1 held by the stacking head 20, which is used to prevent positional displacement, the time for separating or contacting the fixing member with the stacked object 1 and the time for moving the stacking head 20 or the stage 10 up and down by the thickness of the fixing member can be shortened, thus shortening the stacking time.

[0084] This invention is not limited to the above-described embodiments, and various applications and modifications can be applied within the scope of this invention.

[0085] The laminated object 1 is not limited to a sheet-like battery material. For example, multiple laminated objects 1 can be sheet-like conductive layers and insulating layers, and a multilayer substrate can be fabricated by laminating multiple laminated objects 1. In this case, the conductive layer is composed, for example, of copper, silver, copper alloys, silver alloys, or Sn-Ag based solder, and the insulating layer is composed, for example, of thermoplastic resins such as liquid crystal polymers, polyetheretherketones, polyetherimides, or polyimides, or thermosetting resins such as epoxy resins or unsaturated polyesters.

[0086] Furthermore, the stacked object 1 is not limited to a single sheet object, but can also be an object formed by overlapping multiple sheet objects. For example, it can also be configured as an object formed by overlapping a resin film and a metal foil, which is then placed on the stage 10 as the stacked object 1.

Claims

1. A stacking device, characterized in that, have: A stage, used to hold a main surface of stacked objects; and The stacking head is capable of attracting and holding the other main surface of the stacked object on the stage. The above-mentioned stacked head has: Main face; The outer edge is formed in connection with the aforementioned main surface to constitute a recess; and The retaining portion is movable within the aforementioned recess in both directions of approach to and away from the aforementioned main surface, and is provided such that a gap exists between it and the aforementioned outer edge portion. An suction hole with an opening on the recessed side is provided on the main surface. The aforementioned stacking device further includes a control unit, which is capable of controlling the position of the holding part relative to the main face when the holding part holds the stacked object on the platform, based on at least one of the amount of the stacked object held by the holding part and the amount of the stacked object on the platform.

2. The stacking device according to claim 1, characterized in that, The control unit can control the position of the holding unit relative to the main surface, so that the distance between one main surface of the stacked object held by the holding unit and the other main surface of the stacked object on the platform becomes a fixed distance.

3. The stacking device according to claim 1, characterized in that, The control unit can control the position of the holding unit relative to the main face based on the number of times the stacked objects on the platform are held.

4. The stacking device according to any one of claims 1 to 3, characterized in that, The outer edge has an exhaust hole on the opposite side of the main surface, which is used to discharge gas.

5. The stacking device according to claim 4, characterized in that, The aforementioned vent has an annular shape surrounding the aforementioned recess.

6. The stacking apparatus according to any one of claims 1 to 3, characterized in that, The aforementioned stage has a gas ejection section, which is capable of ejecting gas toward the stacked objects on which it is placed.

7. The stacking device according to claim 4, characterized in that, The aforementioned stage has a gas ejection section, which is capable of ejecting gas toward the stacked objects on which it is placed.

8. The stacking device according to claim 5, characterized in that, The aforementioned stage has a gas ejection section, which is capable of ejecting gas toward the stacked objects on which it is placed.

9. The stacking apparatus according to any one of claims 1 to 3, characterized in that, There is no fixing component that contacts at least one of the other main surface of the stacked object located on the outermost side of the aforementioned platform and the main surface of the stacked object located on the outermost side held by the aforementioned stacking head.

10. The stacking device according to claim 4, characterized in that, There is no fixing component that contacts at least one of the other main surface of the stacked object located on the outermost side of the aforementioned platform and the main surface of the stacked object located on the outermost side held by the aforementioned stacking head.

11. The stacking device according to claim 5, characterized in that, There is no fixing component that contacts at least one of the other main surface of the stacked object located on the outermost side of the aforementioned platform and the main surface of the stacked object located on the outermost side held by the aforementioned stacking head.

12. The stacking device according to claim 6, characterized in that, There is no fixing component that contacts at least one of the other main surface of the stacked object located on the outermost side of the aforementioned platform and the main surface of the stacked object located on the outermost side held by the aforementioned stacking head.

13. The stacking device according to claim 7, characterized in that, There is no fixing component that contacts at least one of the other main surface of the stacked object located on the outermost side of the aforementioned platform and the main surface of the stacked object located on the outermost side held by the aforementioned stacking head.

14. The stacking device according to claim 8, characterized in that, There is no fixing component that contacts at least one of the other main surface of the stacked object located on the outermost side of the aforementioned platform and the main surface of the stacked object located on the outermost side held by the aforementioned stacking head.

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