Stacking device

Abstract

The invention provides stacking equipment which is provided with two feeding positions and comprises a stacking module suitable for alternately stacking sheet materials at the two feeding positions, and a stacking module suitable for alternately stacking the sheet materials at the two feeding positions, the feeding module comprises two feeding units, each feeding unit provides sheet materials for the corresponding feeding position, each feeding unit comprises a sheet material preparing part, a material box preparing part and a material box discharging part, the material box preparing parts are used for bearing material boxes containing the sheet materials, and the feeding units can be switched between a first state and a second state; when the feeding unit is in the first state, the sheet stock preparing part corresponds to the material box preparing part, and the feeding unit can transfer a material box containing sheet stock from the material box preparing part to the sheet stock preparing part; and when the feeding unit is in the second state, the feeding unit is used for transferring the sheet stock contained in the material box on the sheet stock preparation part to the feeding position, and the sheet stock preparation part corresponds to the material box discharging part, so that the feeding unit can transfer the material box from the sheet stock preparation part to the material box discharging part.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cell production, and more particularly to a stacking device. Background Art

[0002] In the manufacturing process of hydrogen fuel cells, stacking is a key step, which involves alternately stacking bipolar plates and membrane electrode (MEA). However, when the bipolar plates or membrane electrode in the material box are used up, the existing stacking equipment needs to be stopped for reloading, which not only affects the overall production efficiency, but also increases the production cost. Summary of the invention

[0003] The present invention provides a new technical solution for stacking equipment, which can at least solve the problem of low overall production efficiency of existing stacking equipment.

[0004] According to a first aspect of the present invention, a stacking device is provided, the stacking device is provided with two feeding positions, the stacking device comprises: a stacking module, the stacking module is suitable for alternately stacking the sheets of the two feeding positions; a feeding module, the feeding module comprises two feeding units, each of the feeding units respectively provides sheets to the corresponding feeding position, the feeding unit comprises a sheet material preparation part, a material box preparation part and a material box unloading part, the material box preparation part is used to carry the material box for holding the sheet material, and the feeding unit can be switched between a first state and a second state Switch; when the feeding unit is in the first state, the sheet material preparation section corresponds to the material box preparation section, and the feeding unit can transfer the material box containing the sheet material from the material box preparation section to the sheet material preparation section; when the feeding unit is in the second state, the feeding unit is used to transfer the sheet material contained in the material box on the sheet material preparation section to the feeding position, and the sheet material preparation section corresponds to the material box unloading section, so that the feeding unit can transfer the material box from the sheet material preparation section to the material box unloading section.

[0005] Optionally, the stacking device is provided with a frame, and the feeding unit comprises: a first conveying device, the first conveying device is formed as the sheet material preparation part, the first conveying device is movably provided on the frame between a first position and a second position along a first direction; a first driving member, the first driving member is provided on the frame, the first driving member is connected to the first conveying device to drive the first conveying device to move along the first direction; wherein, when the first conveying device is located at the first position, the feeding unit is in the first state, and the first conveying device is suitable for receiving the material box, and when the first conveying device is located at the second position, the feeding unit is in the second state, and the first conveying device is suitable for moving the material box to the material box unloading part.

[0006] Optionally, the feeding unit further includes: a first lifting member, the first lifting member is arranged on the first conveying device, the first lifting member is suitable for extending into the material box of the sheet material preparation part and lifting the sheet material in the material box.

[0007] Optionally, the feeding unit also includes: a second conveying device, the second conveying device is arranged on the frame, the second conveying device is provided with a first conveying layer and a second conveying layer spaced apart and distributed along a first direction, the first conveying layer is formed as the material box preparation part, and the second conveying layer is formed as the material box unloading part; when the feeding unit is in the first state, the first conveying layer is suitable for cooperating with the first conveying device to convey the material box to the sheet material preparation part; when the feeding unit is in the second state, the second conveying layer is suitable for cooperating with the first conveying device to convey the material box to the material box unloading part.

[0008] Optionally, the first direction is a vertical direction, the second conveying device is movably disposed on the frame along the first direction, and the feeding unit further includes: a second driving member, the second driving member is disposed on the frame, and the second driving member is connected to the second conveying device to drive the second conveying device to move along the first direction.

[0009] Optionally, the stacking device is provided with a frame, and the feeding unit further includes: a loading and conveying device, which is arranged on the frame, and is suitable for conveying the sheet on the sheet preparation part to a first predetermined position; a third conveying device, a part of which is arranged at the first predetermined position to receive the sheet, and the third conveying device is suitable for conveying the sheet to a second predetermined position; a flipping and conveying device, which is arranged on the frame, and is suitable for conveying the sheet at the second predetermined position to the feeding position; wherein, the sheet preparation part, the first predetermined position and the second predetermined position are distributed along the second direction, and the second predetermined position and the feeding position are distributed along the third direction.

[0010] Optionally, the loading and handling device includes: a first suction cup module, the first suction cup module is suitable for controllably sucking the sheet material; a first driving module, the first driving module is arranged on the frame, the first driving module is connected to the first suction cup module, the first driving module is suitable for driving the first suction cup module to move between a third position and a fourth position; wherein, when the first suction cup module is located at the third position, the first suction cup module corresponds to the sheet material preparation part, and when the first suction cup module is located at the fourth position, the first suction cup module corresponds to the first predetermined position.

[0011] Optionally, the first suction cup module is suitable for controllably adsorbing sheet materials and / or separator paper, a material storage section is provided between the sheet material preparation section and the second conveying device, and the first driving module is suitable for driving the first suction cup module to move between the third position, the fourth position and the fifth position; wherein, when the first suction cup module is located at the fifth position, the first suction cup module corresponds to the material storage section, so that the first suction cup module can place the separator paper and / or sheet materials in the material storage section.

[0012] Optionally, the first suction cup module is provided with a first suction cup part and a second suction cup part, the first suction cup part is suitable for controllably sucking the sheet material, and the second suction cup part is suitable for controllably sucking the spacer paper, so that the first suction cup module can synchronously suck the sheet material and the spacer paper under the sheet material.

[0013] Optionally, the feeding module further includes: a material detection unit, wherein the material detection unit is disposed at one side of the material storage portion, and the material detection unit is suitable for detecting whether the first suction cup module absorbs multiple sheets of material and / or separator paper.

[0014] Optionally, the flipping and handling device includes: a movable frame, the movable frame is provided with a pivot axis extending in a second direction, the movable frame is pivotally arranged on the frame between a sixth position and a seventh position around the axis of the pivot axis; a third driving member, the third driving member is arranged on the frame, the third driving member is connected to the pivot axis to drive the movable frame to pivot; a connecting shaft, the connecting shaft extends in the second direction, the connecting shaft is rotatably arranged on the movable frame around its axis; a second suction cup module, the second suction cup module is suitable for controllably sucking the sheet material, the second suction cup module A group is rotatably provided on the connecting shaft around an axis extending in a first direction; a fourth driving member, the fourth driving member is provided on the connecting shaft, the fourth driving member is connected to the second suction cup module group to drive the second suction cup module to rotate; a synchronization component, the synchronization component is provided between the pivot shaft and the connecting shaft to make the connecting shaft and the pivot shaft rotate synchronously; wherein, when the movable frame is located at the sixth position, the second suction cup module corresponds to the second predetermined position, and when the movable frame is located at the seventh position, the second suction cup module corresponds to the feeding position.

[0015] Optionally, the synchronization component includes: two synchronization wheels, one of which is fixedly connected to the pivot shaft, and the other is fixedly connected to the connecting shaft; a synchronization belt, which is sleeved on the two synchronization wheels, and the synchronization wheels are respectively engaged with the two synchronization wheels.

[0016] Optionally, the feeding module also includes: a deflection correction device, each of the feeding positions is provided with the deflection correction device, the deflection correction device is suitable for carrying the sheet material and deflecting the sheet material; a deflection correction detection unit, each of the deflection correction devices is provided with a deflection correction detection unit on the periphery, the deflection correction detection unit is suitable for detecting the position of the sheet material at the feeding position.

[0017] Optionally, the bearing surface of the deviation-correcting device is provided with adsorption holes, and the adsorption holes are suitable for controllably adsorbing the sheet material at the feeding position.

[0018] Optionally, the two feeding positions are spaced apart along the third direction, a stacking position is provided between the two feeding positions, and the stacking module comprises: a stacking lifting device, the stacking lifting device is provided at the stacking position, the stacking lifting device is provided with a lifting part movable along the first direction, and the lifting part is suitable for carrying stacked sheets; a second driving module, the second driving module is provided with a power output part, and the power output part is movable between an eighth position and a ninth position along the third direction; two third suction cup modules, the third suction cup modules are provided at the power output part, and the two third suction cup modules are spaced apart along the third direction; wherein, when the power output part is located at the eighth position, the first third suction cup module corresponds to the first feeding position, and the second third suction cup module corresponds to the stacking position; when the power output part is located at the ninth position, the first third suction cup module corresponds to the stacking position, and the second third suction cup module corresponds to the second feeding position.

[0019] Optionally, the stack lifting device is provided with two guide columns, the two guide columns are spaced apart along the second direction, and the two guide columns cooperate to guide the stacked sheets.

[0020] Optionally, in the second direction, projections of the two guide posts at least partially do not overlap.

[0021] Optionally, the stacking module further comprises: an alignment detection unit, the alignment detection unit is arranged at the periphery of the stacking position, and the alignment detection unit is suitable for detecting the alignment of the stacked sheets.

[0022] Optionally, the feeding unit further comprises: an NG material box, wherein the NG material box is arranged at one end of the third conveying device away from the sheet material preparation part, and the third conveying device is suitable for conveying sheets to the NG material box.

[0023] Optionally, the feeding unit further includes: a barcode scanner, which is disposed on one side of the third conveying device and is suitable for scanning the sheet material on the third conveying device.

[0024] The stacking device according to the present invention is capable of automatically loading a sheet material preparation section by providing a feeding unit switchable between a first state and a second state, thereby reducing downtime caused by replacing a material box, allowing the stacking device to operate continuously and stably, significantly improving the degree of automation and overall production efficiency, and reducing production costs.

[0025] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0027] Figure 1 is a top view of a stacking device according to an embodiment of the present invention;

[0028] Figure 2 is a partial structural schematic diagram of a feeding unit of a stacking device according to an embodiment of the present invention;

[0029] Figure 3 is a left side view of a stacking device according to an embodiment of the present invention;

[0030] Figure 4 is a structural schematic diagram of a loading and handling device of a stacking device according to an embodiment of the present invention;

[0031] Figure 5 is a front view of a flipping and conveying device of a loading and conveying device according to an embodiment of the present invention;

[0032] Figure 6 is a top view of a flipping and conveying device of a loading and conveying device according to an embodiment of the present invention;

[0033] Figure 7 is a top view of a deviation-correcting device of a turning and transporting device according to an embodiment of the present invention;

[0034] Figure 8 is a partial structural schematic diagram of a stacking module of a deviation correction device according to an embodiment of the present invention;

[0035] Fig. 9 It is a schematic structural diagram of a stacking module alignment detection unit and a deviation correction detection unit according to an embodiment of the present invention.

[0036] Reference numerals

[0037] 100. Stacking equipment;

[0038] 101, frame; 101a, base;

[0039] 10. stacking module; 11. stacking lifting device; 111. guide column; 12. second driving module; 121. power output unit; 13. third suction cup module; 14. alignment detection unit;

[0040] 20. Sheet material preparation unit; 21. First driving member; 22. First lifting member;

[0041] 30. Second conveying device; 31. Material box preparation part; 32. Material box unloading part; 33. Second driving member;

[0042] 40. Material loading and handling device; 41. First suction cup module; 42. First driving module; 421. An electric cylinder; 422. Lifting cylinder;

[0043] 50. A third conveying device; 51. A barcode scanner;

[0044] 60. Turning and handling device; 61. movable frame; 62. pivot shaft; 63. third driving member; 64. connecting shaft; 65. second suction cup module; 66. fourth driving member; 67. synchronous assembly; 67a. synchronous wheel; 67b. synchronous belt;

[0045] 70. Material storage department;

[0046] 80. deviation correction device; 80a. adsorption hole; 81. deviation correction detection unit;

[0047] 90. NG material box. DETAILED DESCRIPTION

[0048] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0049] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0050] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0051] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0052] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0053] The stacking device 100 according to the embodiment of the present invention is described in detail below with reference to the accompanying drawings.

[0054] like Figures 1 to 9 As shown, the stacking device 100 according to the embodiment of the present invention includes a stacking module 10 and a feeding module.

[0055] Specifically, the stacking device 100 is provided with two feeding positions, and the stacking module 10 is suitable for alternately stacking the sheets at the two feeding positions. The feeding module includes two feeding units, and each feeding unit provides sheets to the corresponding feeding position respectively. The feeding unit includes a sheet preparation part 20, a material box preparation part 31 and a material box unloading part 32. The material box preparation part 31 is used to carry a material box for holding sheets, and the feeding unit can be switched between a first state and a second state; at the feeding unit In the first state, the sheet material preparation section 20 corresponds to the material box preparation section 31, and the feeding unit can transfer the material box containing the sheet material from the material box preparation section 31 to the sheet material preparation section 20; when the feeding unit is in the second state, the feeding unit is used to transfer the sheet material contained in the upper material box of the sheet material preparation section 20 to the feeding position, and the sheet material preparation section 20 corresponds to the material box unloading section 32, so that the feeding unit can transfer the material box from the sheet material preparation section 20 to the material box unloading section 32.

[0056] In other words, if Figures 1 to 9 As shown, the stacking device 100 according to an embodiment of the present invention is mainly used for stacking bipolar sheets and MEAs (membrane electrode assemblies) of fuel cells. The stacking device 100 is provided with two feeding positions, one of which can be a bipolar sheet feeding position, and the other can be a MEA feeding position. The stacking device 100 mainly includes a stacking module 10 and a feeding module, wherein the stacking module 10 is suitable for alternately stacking sheets of the two feeding positions at the stacking positions, and the feeding module includes two feeding units, one of which provides bipolar sheets to the bipolar sheet feeding position, and the other is used to provide MEAs to the MEA feeding position. The bipolar sheets and MEAs can be alternately stacked into the required fuel cell stack through the stacking module 10.

[0057] like Figures 1 to 3 As shown, both feeding units include a sheet material preparation part 20, a material box preparation part 31 and a material box unloading part 32. The sheet material preparation part 20 can carry a material box containing stacked sheets, and the sheets required by the feeding unit can be provided through the carried material box, the material box preparation part 31 can carry a material box containing stacked sheets for standby use by the feeding unit, and the material box unloading part 32 can carry an empty material box after the sheets are used up.

[0058] Specifically, the feeding unit has a first state and a second state. When the feeding unit is in the first state, the position of the sheet material preparation section 20 corresponds to that of the material box preparation section 31, and the feeding unit can transfer the material box containing the sheet material from the material box preparation section 31 to the sheet material preparation section 20; when the feeding unit is in the second state, if the sheet material preparation section 20 carries a material box containing stacked sheets, the feeding unit can transfer the sheets in the upper material box of the sheet material preparation section 20 to the feeding position. At this time, the sheet material preparation section 20 also corresponds to the material box unloading section 32. If the feeding unit uses up the sheets in the material box, the feeding unit can transfer the empty material box from the sheet material preparation section 20 to the material box unloading section 32.

[0059] In this embodiment, the feeding unit can be switched between the first state and the second state, so that when the sheets in the material box of the sheet material preparation part 20 are used up, the empty material box can be automatically transferred to the material box unloading part 32, and the material box containing the sheets can be transferred to the sheet material preparation part 20. Before the sheets in the material box at the position of the sheet material preparation part 20 are used up, the user only needs to provide the material box containing the sheets to the material box preparation part 31 and remove the empty material box of the material box unloading part 32 to realize non-stop feeding.

[0060] Therefore, according to the stacking device 100 provided in this embodiment, by setting a feeding unit that can switch between a first state and a second state, the stacking device 100 can realize automatic loading of the sheet material preparation part 20, thereby reducing the downtime caused by replacing the material box, and enabling the stacking device 100 to operate continuously and stably, thereby significantly improving the degree of automation and overall production efficiency, and reducing production costs.

[0061] In some embodiments of the present invention, the stacking device 100 is provided with a frame 101, and the feeding unit includes: a first conveying device and a first driving member 21, the first conveying device is formed as a sheet material preparation part 20, the first conveying device is movably provided on the frame 101 between a first position and a second position along a first direction, the first driving member 21 is provided on the frame 101, and the first driving member 21 is connected to the first conveying device to drive the first conveying device to move along the first direction, wherein, when the first conveying device is located at the first position, the feeding unit is in a first state, and the first conveying device is suitable for receiving a material box, and when the first conveying device is located at the second position, the feeding unit is in a second state, and the first conveying device is suitable for transferring the material box from the sheet material preparation part 20 to the material box unloading part 32.

[0062] That is to say, Figures 1 to 3As shown, the stacking device 100 is provided with a frame 101, and the feeding unit mainly includes a first conveying device and a first driving member 21, wherein the first conveying device can be used as a sheet material preparation part 20 of the feeding unit, and the first conveying device can be movably arranged on the frame 101 between a first position and a second position along a first direction (for example, a vertical direction), and the first conveying device can be a belt conveyor, and the upper surface of the conveyor belt of the first conveying device can be used as a bearing surface for carrying material boxes.

[0063] When the first conveying device is located at the first position, the feeding unit is in a first state, the first conveying device corresponds to the position of the material box preparation part 31, and the first conveying device can receive the material box transferred by the material box preparation part 31; when the first conveying device is located at the second position, the feeding unit is in a second state, the first conveying device corresponds to the position of the material box unloading part 32, and the first conveying device can convey the material box to the material box unloading part 32, so that the material box can be transferred from the sheet material preparation part 20 to the material box unloading part 32 through the first conveying device.

[0064] In this embodiment, the frame 101 is also provided with a first driving member 21 for driving the first conveying device to move along the first direction. For example, the first driving member 21 can be a cylinder, which is fixedly connected to the frame 101, and the conveying end of the cylinder is fixedly connected to the body of the first conveying device.

[0065] Thus, by driving the first conveying device to move between the first position and the second position through the first driving member 21, the feeding unit can be switched between the first state and the second state, so that the feeding unit can automatically receive or transfer the material box as needed, reducing manual operation and improving the degree of automation and production efficiency.

[0066] According to one embodiment of the present invention, the feeding unit further comprises: a first lifting member 22, which is disposed on the first conveying device, and is suitable for extending into the material box of the sheet material preparation part 20 and lifting the sheet material in the material box.

[0067] Specifically, a through opening is provided at the bottom of the material box, and a first lifting member 22 is provided on the body of the first conveying device. The first lifting member 22 can be a cylinder. The first lifting member 22 is fixed to the body of the first conveying device. The output end of the first lifting member 22 can extend into the material box from the through opening to lift the sheet material in the material box so that the top layer of sheet material can always be maintained at a set height, which is beneficial for the feeding unit to transfer the sheet material. When the material box needs to be transferred, the first lifting member 22 can be retracted to a height lower than the bearing surface of the first conveying device.

[0068] In some embodiments of the present invention, the feeding unit also includes: a second conveying device 30, the second conveying device 30 is arranged on the frame 101, the second conveying device 30 is provided with a first conveying layer and a second conveying layer spaced apart and distributed along a first direction, the first conveying layer is formed as a material box preparation part 31, and the second conveying layer is formed as a material box unloading part 32; when the feeding unit is in a first state, the first conveying layer is suitable for cooperating with the first conveying device to convey the material box from the material box preparation part 31 to the sheet material preparation part 20; when the feeding unit is in a second state, the second conveying layer is suitable for cooperating with the first conveying device to convey the material box from the sheet material preparation part 20 to the material box unloading part 32.

[0069] That is to say, Figures 1 to 3 As shown, the feeding unit includes a second conveying device 30, which mainly includes two belt conveyors. The two belt conveyors are distributed spaced apart along a first direction, and the two belt conveyors are fixedly connected together by a connecting frame to form the second conveying device 30. The belt conveyor located at the bottom can be used as the first conveying layer, and the belt conveyor located at the top can be used as the second conveying layer.

[0070] In this embodiment, the second conveying device 30 is arranged on the frame 101. When the first conveying device is located at the first position, the first conveying device corresponds to the position of the first conveying layer, and the first conveying layer can transfer the material box to the first conveying device, and the first conveying device can receive the material box and convey it to a predetermined material preparation position; when the first conveying device is located at the second position, the first conveying device corresponds to the position of the second conveying layer, and the first conveying device can convey the material box to the second conveying layer, and the second conveying layer can receive the material box and convey it to a predetermined material box unloading position.

[0071] Thus, by cooperating with the first conveying device and the first conveying layer and the second conveying layer, smooth conveying of the material box in different states of the feeding unit is achieved, and the first conveying layer and the second conveying layer can also cooperate with the corresponding material box conveying line, so that the stacking equipment 100 can be adapted to the automated production line.

[0072] According to one embodiment of the present invention, the first direction is a vertical direction, and the second conveying device 30 is movably disposed on the frame 101 along the first direction. The feeding unit also includes: a second driving member 33, the second driving member 33 is disposed on the frame 101, and the second driving member 33 is connected to the second conveying device 30 to drive the second conveying device 30 to move along the first direction.

[0073] Specifically, Figure 2As shown, the second conveying device 30 can be movably arranged on the frame 101 along the vertical direction through a slider guide structure. The frame 101 is also provided with a second driving member 33. The second driving member 33 can be a cylinder. The second driving member 33 is fixedly connected to the frame 101. The output end of the second driving member 33 is connected to the second conveying device 30. The second conveying device 30 can be driven to move in the vertical direction through the second driving member 33, so that the height of the second conveying device 30 can be adjusted according to needs, which is beneficial for users to place material boxes on the first conveying layer, and also beneficial for users to remove empty material boxes on the second conveying layer, which is convenient for users to use.

[0074] In some embodiments of the present invention, the stacking device 100 is provided with a frame 101, and the feeding unit further includes: a loading and conveying device 40, a third conveying device 50 and a flipping and conveying device 60, the loading and conveying device 40 is arranged on the frame 101, the loading and conveying device 40 is suitable for conveying the sheet material on the sheet material preparation part 20 to the first predetermined position, a part of the third conveying device 50 is arranged at the first predetermined position to receive the sheet material, the third conveying device 50 is suitable for conveying the sheet material to the second predetermined position, and the flipping and conveying device 60 is arranged on the frame 101, and the flipping and conveying device 60 is suitable for conveying the sheet material at the second predetermined position to the feeding position; wherein, the sheet material preparation part 20, the first predetermined position and the second predetermined position are distributed along the second direction, and the second predetermined position and the feeding position are distributed along the third direction.

[0075] In other words, if Figures 1 to 8 As shown, the feeding unit according to the embodiment of the present invention further includes a loading and conveying device 40, a third conveying device 50 and a flipping and conveying device 60. The loading and conveying device 40 is arranged on the frame 101, and the position of the loading and conveying device 40 corresponds to that of the first conveying device. For example, the loading and conveying device 40 is located above the first conveying device, and the first predetermined position and the first conveying device are distributed along the second direction. The loading and conveying device 40 can convey the sheets in the loading box of the sheet preparation part 20 to the first predetermined position.

[0076] The third conveying device 50 is installed on the frame 101. The third conveying device 50 can be a belt conveyor. A part of the third conveying device 50 is located at the first predetermined position, and the other part of the third conveying device 50 is located at the second predetermined position, so that the third conveying device 50 can receive the sheet material transported by the loading and transporting device 40 at the first predetermined position, and the third conveying device 50 can be used to transport the sheet material from the first predetermined position to the second predetermined position, and the third conveying device 50 can cache the sheet material to meet different production rates.

[0077] The second predetermined position and the feeding position are distributed along the third direction. The flipping and conveying device 60 is installed on the frame 101. The flipping and conveying device 60 can be located between the second predetermined position and the corresponding feeding position. The flipping and conveying device 60 can convey the sheet material at the second predetermined position to the loading position for stacking by the stacking module 10.

[0078] In this embodiment, the loading and conveying device 40, the third conveying device 50 and the flipping and conveying device 60 adopt the above-mentioned layout relationship to shorten the size of the stacking device 100 in a single direction, and through the coordinated work of the loading and conveying device 40, the third conveying device 50 and the flipping and conveying device 60, not only the rapid conveyance of the sheet material in the second direction and the third direction is achieved, but also the simplicity of the structure is maintained.

[0079] According to one embodiment of the present invention, the loading and handling device 40 includes: a first suction cup module 41 and a first driving module 42, the first suction cup module 41 is suitable for controllably sucking the sheet material, the first driving module 42 is arranged on the frame 101, the first driving module 42 is connected to the first suction cup module 41, the first driving module 42 is suitable for driving the first suction cup module 41 to move between a third position and a fourth position; wherein, when the first suction cup module 41 is located at the third position, the first suction cup module 41 corresponds to the sheet material preparation part 20, and when the first suction cup module 41 is located at the fourth position, the first suction cup module 41 corresponds to the first predetermined position.

[0080] Specifically, Figures 1 to 4 As shown, the loading and handling device 40 mainly includes a first driving module 42 and a first suction cup module 41, wherein the first driving module 42 includes a first electric cylinder 421 and a lifting cylinder 422, the first electric cylinder 421 is fixedly connected to the frame 101, the output end of the first electric cylinder 421 is movable along the second direction, the lifting cylinder 422 is fixedly connected to the output end of the first electric cylinder 421, the output end of the lifting cylinder 422 is retractable along the first direction, and the output end of the lifting cylinder 422 is connected to the first suction cup module 41, so that the first suction cup module 41 can be driven to move between the third position and the third position along the second direction through the first electric cylinder 421.

[0081] like Figures 1 to 4As shown, when the first suction cup module 41 is located in the third position, the first suction cup module 41 is located directly above the sheet material preparation section 20, and the first suction cup module 41 can be controlled to descend by the lifting cylinder 422 to approach the sheet material, so that the sheet material can be adsorbed without excessive suction force, and after adsorption, the first suction cup module 41 can be controlled to rise by the lifting cylinder 422, so that the first electric cylinder 421 can move the first suction cup module 41 and the sheet material to the fourth position; when the first suction cup module 41 is located in the fourth position, the first suction cup module 41 is located directly above the first predetermined position, and the first suction cup module 41 is controlled to descend by the lifting cylinder 422 to approach the third conveying device 50 at the first predetermined position, so that the sheet material adsorbed by the first suction cup module 41 is close to the third conveying device 50, and then the first suction cup module 41 is controlled to cancel the suction force, so that the sheet material can be transported to the first predetermined position.

[0082] In some optional examples of the present invention, two rows of sheet materials are contained in the material box, and the first suction cup module 41 can absorb the two rows of sheet materials at the same time, thereby ensuring the handling efficiency.

[0083] In some embodiments of the present invention, the first suction cup module 41 is suitable for controllably adsorbing sheet materials or separator paper, a material storage section 70 is provided between the sheet material preparation section 20 and the second conveying device 30, and the first driving module 42 is suitable for driving the first suction cup module 41 to move between a third position, a fourth position and a fifth position; wherein, when the first suction cup module 41 is located at the fifth position, the first suction cup module 41 corresponds to the material storage section 70, so that the first suction cup module 41 can place the separator paper and / or sheet materials in the material storage section 70.

[0084] That is to say, in order to avoid the stacked sheets in the material box from being separated, adjacent sheets are usually separated by spacers. Based on this, the first suction cup module 41 of the present embodiment can not only absorb the sheets but also absorb the spacers.

[0085] That is, the first suction cup module 41 can controllably absorb the sheet material and / or the separator paper, which specifically includes the following situations:

[0086] Case 1: The first suction cup module 41 can controllably suck the sheet material;

[0087] Case 2: The first suction cup module 41 can controllably absorb the separator paper;

[0088] Case 3: The first suction cup module 41 can controllably suck the sheet material and the separator paper at the same time.

[0089] In the second direction, the first driving module 42 is suitable for driving the first suction cup module 41 to move between the third position, the fourth position and the fifth position, the fifth position is located between the third position and the fourth position, and a material storage portion 70 is provided between the first conveying device and the second conveying device 30. When the first suction cup module 41 is located at the fifth position, the first suction cup module 41 is located directly above the material storage portion 70. If the first suction cup module 41 absorbs a spacer, the spacer can be placed in the material storage portion 70 by controlling the first suction cup module 41. If the first suction cup module 41 absorbs a multi-layer sheet material, the multi-layer sheet material can be placed in the material storage portion 70 by controlling the first suction cup module 41.

[0090] In some optional examples of the present invention, the material storage portion 70 is a material storage box, which is movably disposed on the frame 101 along a first direction, and the frame 101 is provided with a cylinder suitable for driving the material storage box to move.

[0091] According to one embodiment of the present invention, the first suction cup module 41 is provided with a first suction cup part and a second suction cup part, the first suction cup part is suitable for controllably sucking the sheet material, and the second suction cup part is suitable for controllably sucking the spacer paper, so that the first suction cup module 41 can synchronously suck the sheet material and the spacer paper under the sheet material.

[0092] Specifically, the first suction cup module 41 mainly includes a first suction cup part and a second suction cup part, wherein the first suction cup part and the second suction cup part can each include multiple suction cups, and the position of the first suction cup part corresponds to the position of the sheet material, and the position of the second suction cup part is staggered with the position of the sheet material.

[0093] In this embodiment, the area of ​​the separator paper is designed to be larger than the area of ​​the sheet material, so that a portion of the sheet material will not completely overlap with the separator paper. The position of the second suction cup portion is deliberately set to correspond to the portion of the separator paper that is not covered by the sheet material. This design enables the first suction cup module 41 to simultaneously adsorb the sheet material and the separator paper underneath it. When the first suction cup module 41 moves to the fifth position, the separator paper can be easily removed from under the sheet material by simply turning off the adsorption function of the second suction cup portion. This design avoids the complicated steps of separately transporting the sheet material and the separator paper, thereby simplifying the entire transport process and significantly improving the transport efficiency.

[0094] It should be noted that the suction cups used in each suction cup module can be adjusted according to the different sheet materials. For example, the suction cups used for adsorbing the bipolar sheet and the MEA can be different. The suction cups for adsorbing the bipolar sheet can be larger suction cups, and the suction cups for adsorbing the MEA can be smaller suction cups. When smaller suction cups are used, the number of suction cups required for the suction cup module can be increased accordingly, which will not be repeated in this embodiment.

[0095] In some embodiments of the present invention, the feeding module further includes: a material detection unit, which is disposed on one side of the material storage portion 70, and is suitable for detecting whether the first suction cup module 41 absorbs multiple sheets of material and / or separator paper.

[0096] That is, the rack 101 is fixedly connected with a material detection unit on one side of the material storage part 70. The material detection unit may be a visual sensor, through which the number of sheets adsorbed by the first suction cup module 41 located at the fifth position can be accurately detected to ensure that it does not exceed the predetermined number of sheets. At the same time, it can also monitor whether the sheet has successfully removed the separator during the adsorption process, and detect any abnormality in time.

[0097] In this embodiment, the material detection unit is provided to help timely discover and handle abnormal situations, which is beneficial to ensuring the stable operation and reliability of the stacking device 100.

[0098] According to one embodiment of the present invention, the flipping and handling device 60 includes: a movable frame 61, a third driving member 63, a connecting shaft 64, a second suction cup module 65, a fourth driving member 66 and a synchronization assembly 67, the movable frame 61 is provided with a pivot shaft 62 extending along the second direction, the movable frame 61 is pivotally arranged on the frame 101 between a sixth position and a seventh position around the axis of the pivot shaft 62, the third driving member 63 is arranged on the frame 101, the third driving member 63 is connected to the pivot shaft 62 to drive the movable frame 61 to pivot, the connecting shaft 64 extends along the second direction, and the connecting shaft 64 is rotatably arranged on the movable frame 61 around its axis, The second suction cup module 65 is suitable for controllably sucking the sheet material. The second suction cup module 65 is rotatably disposed on the connecting shaft 64 around an axis extending in the first direction. The fourth driving member 66 is disposed on the connecting shaft 64. The fourth driving member 66 is connected to the second suction cup module 65 to drive the second suction cup module 65 to rotate. The synchronization component 67 is disposed between the pivot shaft 62 and the connecting shaft 64 to make the connecting shaft 64 rotate synchronously with the pivot shaft 62. When the movable frame 61 is located at the sixth position, the second suction cup module 65 corresponds to the second predetermined position. When the movable frame 61 is located at the seventh position, the second suction cup module 65 corresponds to the feeding position.

[0099] In other words, if Figure 1 and Figure 6As shown, the flipping and handling device 60 according to the embodiment of the present invention mainly includes a movable frame 61, a third driving member 63, a connecting shaft 64, a second suction cup module 65 and a synchronization component 67. Among them, the movable frame 61 is fixedly connected to a pivot shaft 62 extending along the second direction, and the movable frame 61 is pivotally connected to the base 101a on the frame 101 through the pivot shaft 62, so that the movable frame 61 can rotate between the sixth position and the seventh position around the axis of the pivot shaft 62. The third driving member 63 can be a motor, and the third driving member 63 is fixed to the base 101a, and its output end is fixedly connected to one end of the pivot shaft 62 to provide the necessary power for the rotation of the movable frame 61. The connecting shaft 64 is rotatably connected to the movable frame 61, and the axis of the connecting shaft 64 is parallel to the axis of the pivot shaft 62, and the connecting shaft 64 and the pivot shaft 62 are connected together through the synchronization component 67, and the second suction cup module 65 can be installed on the connecting shaft 64.

[0100] In this embodiment, when the movable frame 61 is at the sixth position, the second suction cup module 65 is located directly above the second predetermined position, at which time the second suction cup module 65 can absorb the sheet material at the second predetermined position, or place the sheet material absorbed by the second suction cup module 65 at the second predetermined position; as the movable frame 61 rotates around the pivot shaft 62 to the seventh position, the connecting shaft 64 rotates synchronously under the action of the synchronization component 67, ensuring that the second suction cup module 65 maintains a constant orientation, that is, always facing downward, so as to absorb the sheet material. When the movable frame 61 reaches the seventh position, the second suction cup module 65 is located directly above the feeding position, at which time the second suction cup module 65 can absorb the sheet material at the feeding position, or place the sheet material absorbed by the second suction cup module 65 at the feeding position.

[0101] Furthermore, the second suction cup module 65 is rotatably provided on the connecting shaft 64 around an axis extending in the first direction. The connecting shaft 64 is also fixedly connected to a fourth driving member 66. The fourth driving member 66 can be a motor. The output end of the fourth driving member 66 can be fixedly connected to the second suction cup module 65 to drive the second suction cup module 65 to rotate.

[0102] In this example, the second suction cup module 65 can be driven to rotate by the fourth driving member 66, so that when the movable frame 61 rotates, the sheet material can be rotated to a predetermined angle around the axis extending in the first direction. For example, the sheet material can be rotated ninety degrees. Such a rotation design ensures that during the conveying process, the short side of the sheet material is always consistent with the conveying direction, which helps to achieve a compact design of the stacking device 100 structure and save space.

[0103] In some embodiments of the present invention, the synchronization component 67 includes: two synchronization wheels 67a and a synchronization belt 67b, wherein one synchronization wheel 67a is fixedly connected to the pivot shaft 62, and the other synchronization wheel 67a is fixedly connected to the connecting shaft 64, the synchronization belt 67b is sleeved on the two synchronization wheels 67a, and the synchronization wheels 67a are respectively engaged with the two synchronization wheels 67a.

[0104] Specifically, Figure 5 As shown, the synchronous assembly 67 is composed of two synchronous wheels 67a and a synchronous belt 67b. The first synchronous wheel 67a is fixedly mounted on the pivot shaft 62, and the second synchronous wheel 67a is fixed on the connecting shaft 64. The synchronous belt 67b is designed to be annular. The synchronous belt 67b is sleeved on the outer sides of the two synchronous wheels 67a and meshes with the synchronous wheels 67a through the inner sides. Therefore, when the movable frame 61 rotates around the pivot shaft 62, the synchronous wheel 67a and the synchronous belt 67b can drive the connecting shaft 64 to rotate synchronously at the same angle. In addition, the structure is simple, which can ensure the stability and reliability of the flipping and transporting device 60 during operation.

[0105] According to one embodiment of the present invention, the feeding module also includes: a correction device 80 and a correction detection unit 81. Each feeding position is provided with a correction device 80, which is suitable for carrying and correcting the sheet material. The periphery of each correction device 80 is provided with a correction detection unit 81, which is suitable for detecting the position of the sheet material at the feeding position.

[0106] That is to say, each feeding position is provided with a deviation correction device 80, through which the sheet material can be carried at the feeding position and the deviation of the carried sheet material can be corrected, so that the stacking accuracy of the sheet material can be guaranteed.

[0107] In addition, if Figure 1 and Fig. 9 As shown, a correction detection unit 81 is provided on the periphery of each correction device 80. The correction detection unit 81 can be connected to the control system of the stacking device 100. The position of the sheet on the correction device 80 can be detected through the correction detection unit 81. The correction detection unit 81 can include four vertically arranged cameras (such as CCD cameras). The cameras correspond to the positions of the four corners of the sheet, respectively, so as to collect the position information of the four corners of the sheet, and the collected information can be fed back to the control system of the stacking device 100. The control system of the stacking device 100 can send corresponding compensation information to the correction device 80 according to the position information, which is conducive to adjusting the sheet to an accurate position.

[0108] In some optional examples of the present invention, the deviation correction device 80 is a UVW platform.

[0109] In some embodiments of the present invention, the supporting surface of the deviation-correcting device 80 is provided with adsorption holes 80a, and the adsorption holes 80a are suitable for controllably adsorbing the sheet material at the feeding position.

[0110] Specifically, Figure 7 As shown, a supporting plate is fixedly connected to the upper side of the deflection correction device 80, and the upper surface of the supporting plate is a supporting surface. The upper surface of the supporting surface is provided with a plurality of adsorption holes 80a, and the end of the adsorption hole 80a away from the supporting surface is connected to the vacuum generator, so that the adsorption hole 80a can controllably adsorb the sheet material. When the sheet material is deflected, the sheet material can be fixed to the supporting surface through the adsorption hole 80a, so as to avoid the sheet material from being offset during deflection correction, and then the deflection correction accuracy can be ensured.

[0111] According to one embodiment of the present invention, two feeding positions are spaced apart and distributed along a third direction, and a stacking position is provided between the two feeding positions. The stacking module 10 comprises: a stacking lifting device 11, a second driving module 12 and two third suction cup modules 13. The stacking lifting device 11 is provided at the stacking position, and the stacking lifting device 11 is provided with a lifting portion movable along a first direction, and the lifting portion is suitable for carrying stacked sheets; the second driving module 12 is provided with a power output portion 121, and the power output portion 121 is movable between an eighth position and a ninth position along the third direction; the third suction cup module 13 is provided at the power output portion 121, and the two third suction cup modules 13 are spaced apart and distributed along the third direction; wherein, when the power output portion 121 is located at the eighth position, the first third suction cup module 13 corresponds to the first feeding position, and the second third suction cup module 13 corresponds to the stacking position; when the power output portion 121 is located at the ninth position, the first third suction cup module 13 corresponds to the stacking position, and the second third suction cup module 13 corresponds to the second feeding position.

[0112] That is to say, Figures 1 to 9 As shown, the stacking module 10 mainly includes a stacking lifting device 11, a second driving module 12 and two third suction cup modules 13. In the third direction, the stacking lifting device 11 is located between the deviation correcting devices 80 of the two feeding units, and the stacking lifting device 11 is provided with a lifting part movable along the first direction, through which the required stacked sheets are carried, and the lifting part can adjust the height of the top layer of the stacked sheets, so that the height of the top layer of the stacked sheets can always be maintained at a predetermined height, which is conducive to the subsequent stacking of sheets.

[0113] The second driving module 12 includes a second electric cylinder and a lifting assembly, the second electric cylinder is fixedly connected to the frame 101, the output end of the second electric cylinder is movable along the third direction, the lifting assembly is fixedly connected to the output end of the second electric cylinder, the lifting assembly is provided with a connecting seat as a power output part 121, and the lifting assembly can control the connecting seat to move along the first direction. In addition, two third suction cup modules 13 are spaced apart along the third direction and fixedly mounted on the connecting seat of the lifting assembly.

[0114] In this embodiment, the second electric cylinder can drive the power output part 121 to move between the eighth position and the ninth position along the third direction. When the power output part 121 is located at the eighth position, the first third suction cup module 13 is located directly above the first feeding position, and the second third suction cup module 13 is located directly above the stacking position, and the lifting component can control the two third suction cup modules 13 to descend, so that the first third suction cup module 13 is close to the first feeding position to absorb the sheet material, and the second third suction cup module 13 is close to the stacking position to stack the sheet material; when the power output part 121 is located at the ninth position, the first third suction cup module 13 is located directly above the stacking position, and the second third suction cup module 13 is located directly above the second feeding position, and the lifting component can control the two third suction cup modules 13 to descend, so that the first third suction cup module 13 is close to the stacking position to stack the sheet material, and the second third suction cup module 13 is close to the second feeding position to absorb the sheet material.

[0115] Therefore, according to the stacking module 10 of the embodiment of the present invention, the second driving module 12 can drive the two third suction cup modules 13 to alternately complete the loading and stacking processes. Compared with the method in which each third suction cup module 13 is separately equipped with a driving module, the above structure not only simplifies the structure and reduces the production cost, but also improves the working efficiency of the stacking module 10.

[0116] It should be noted that the first suction cup module 42, the second suction cup module 65 and the third suction cup module 13 can all include multiple suction cups, and the suction cups can be connected to the vacuum generator so that the suction cups have an adsorption function, and the suction switch can be controlled by a corresponding solenoid valve, which will not be repeated in this embodiment.

[0117] According to some embodiments of the present invention, the lifting assembly includes a cylinder and a connecting seat, one end of the cylinder is connected to the output end of the second electric cylinder, and the second end of the cylinder is connected to the connecting seat, and the connecting seat can be driven to move along the first direction by the cylinder.

[0118] Optionally, the stacking lifting device 11 is a rigid chain lifting platform, which can effectively save stacking height space, thereby improving the compatibility of the equipment.

[0119] In some embodiments of the present invention, the stacking lifting device 11 is provided with two guide columns 111 , the two guide columns 111 are spaced apart along the second direction, and the two guide columns 111 cooperate to guide the stacked sheets.

[0120] Specifically, Figure 3 As shown, the upper end of the stacking lifting device 11 is fixedly connected to two guide columns 111 spaced apart along the second direction. The two guide columns 111 can guide the stacked sheets at the stacking position to avoid the stacked sheets from shifting in the second direction, thereby ensuring the quality of the battery stack.

[0121] According to one embodiment of the present invention, in the second direction, the projections of the two guide posts 111 at least partially do not overlap.

[0122] That is to say, the positions of the two guide columns 111 are staggered in the third direction, so that the guide columns 111 can effectively prevent the stacked sheets from being deflected even without increasing their size, thereby effectively improving the guiding effect of the guide columns 111.

[0123] In some embodiments of the present invention, the stacking module 10 further includes an alignment detection unit 14, which is disposed at the periphery of the stacking position and is suitable for detecting the alignment of the stacked sheets.

[0124] Specifically, Figure 1 and Fig. 9 As shown, an alignment detection unit 14 is provided on the periphery of the stacking lifting device 11. The alignment detection unit 14 is electrically connected to the control system of the stacking equipment 100. The alignment detection unit 14 mainly includes eight cameras (for example, CDD cameras), and every two cameras are used to detect the alignment information of one side of the sheet material, so that the alignment of multiple sides of the stacked sheet material can be detected, which is beneficial to timely discover the sheets with unqualified alignment and to ensure the accuracy and quality of the battery stacking process.

[0125] According to one embodiment of the present invention, the feeding unit further comprises: an NG material box 90 , which is disposed at one end of the third conveying device 50 away from the sheet material preparation part 20 , and the third conveying device 50 is suitable for conveying sheets to the NG material box 90 .

[0126] like Figure 1As shown, in the present embodiment, an NG material box 90 (i.e., a defective material box) is provided at one end of the third conveying device 50 away from the sheet material preparation section 20. The third conveying device 50 can convey the defective sheets to the NG material box 90. For example, when the alignment detection of the sheets fails, the sheets are first returned to the feeding position, and then stacked again after re-correction. When the alignment detection still fails, the sheets are defective, and the sheets are returned to the feeding position, and then conveyed to the second predetermined position by the flipping and conveying device 60. Subsequently, the third conveying device 50 conveys the sheets to the NG material box 90.

[0127] In some optional examples of the present invention, the NG material box 90 is movably arranged on the frame 101 along the first direction, and the frame 101 is also provided with a cylinder suitable for driving the movement of the NG material box 90. When it is necessary to take out the sheets in the NG material box 90, the NG material box 90 can be controlled to descend by the cylinder to adjust the height of the NG material box 90 to a height that is convenient for the user to take.

[0128] In some embodiments of the present invention, the feeding unit further includes: a barcode scanner 51 , which is disposed on one side of the third conveying device 50 , and is suitable for scanning the sheet material on the third conveying device 50 .

[0129] Specifically, Figure 1 As shown, a barcode scanner 51 is provided on one side of the third conveying device 50, and the barcode scanner 51 is electrically connected to the control system of the stacking device 100. The barcode scanner 51 scans the QR code of the sheet material on the third conveying device 50 at a specified position, thereby facilitating product traceability and confirming product information. If the QR code is incorrect or the QR code is not scanned, the third conveying device 50 can convey the sheet material to the NG material box 90.

[0130] Before using the stacking device 100 according to the embodiment of the present invention, a material box containing sheet materials is placed on the first conveying device, the first conveying device is located at the second position, the first suction cup module 41 is located at the third position, and the power output unit 121 is located at the ninth position.

[0131] like Figures 1 to 3As shown, when the stacking device 100 according to the embodiment of the present invention is used, in the first step, the first suction cup module 41 simultaneously absorbs the topmost sheet material in the material box and the separator paper below; in the second step, the first driving module 42 drives the first suction cup module 41 to move to the fifth position, the second suction cup part of the first suction cup module 41 cancels the suction force, and the separator paper falls to the material storage part 70; in the third step, the first driving module 42 drives the first suction cup module 41 to move to the fourth position, the first suction cup part of the first suction cup module 41 cancels the suction force, and the sheet material falls on the third conveying device 50 at the first predetermined position; in the fourth step, the third conveying device 50 conveys the sheet material to the second predetermined position; in the fifth step, the flipping and conveying device 60 conveys the sheet material to the deviation correction device 80; in the sixth step, the deflection correction detection unit 81 detects the position of the sheet material, and the deflection correction device 80 corrects the sheet material according to the detected information; in the seventh step, the second driving module 12 drives the power output part 121 to move to the eighth position, and the first third suction cup module 13 adsorbs the sheet material from the first feeding position; in the eighth step, the second driving module 12 drives the power output part 121 to move to the ninth position, the first third suction cup module 13 cancels the suction, the sheet material is stacked to the stacking lifting position, the second third suction cup module 13 adsorbs the sheet material at the second feeding position, and when the power output part 121 moves to the eighth position again, the second third suction cup module 13 cancels the suction, and the sheet material is stacked to the stacking lifting position, such as reciprocating.

[0132] In summary, according to the stacking device 100 provided in this embodiment, by setting a feeding unit that can switch between a first state and a second state, the stacking device 100 can realize automatic loading of the sheet material preparation part 20, thereby reducing the downtime caused by replacing the material box, allowing the stacking device 100 to operate continuously and stably, significantly improving the degree of automation and overall production efficiency, and reducing production costs.

[0133] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A stacking device, characterized in that: The stacking device is provided with two feeding positions, and the stacking device comprises: A stacking module, the stacking module is suitable for alternately stacking the sheets at the two feeding positions; A feeding module, wherein the feeding module comprises two feeding units, each of which provides sheet materials to a corresponding feeding position, the feeding unit comprises a sheet material preparation part, a material box preparation part and a material box unloading part, the material box preparation part is used to carry a material box for holding sheet materials, and the feeding unit can be switched between a first state and a second state; When the feeding unit is in the first state, the sheet material preparation part corresponds to the material box preparation part, and the feeding unit can transfer the material box containing the sheet material from the material box preparation part to the sheet material preparation part; When the feeding unit is in the second state, the feeding unit is used to transfer the sheet material contained in the material box on the sheet material preparation section to the feeding position, and the sheet material preparation section corresponds to the material box unloading section, so that the feeding unit can transfer the material box from the sheet material preparation section to the material box unloading section.

2. The stacking device according to claim 1, characterized in that The stacking device is provided with a frame, and the feeding unit comprises: A first conveying device, the first conveying device is formed as the sheet material preparation part, and the first conveying device is movably arranged on the frame between a first position and a second position along a first direction; A first driving member, the first driving member is disposed on the frame, and the first driving member is connected to the first conveying device to drive the first conveying device to move along the first direction; Wherein, when the first conveying device is located at the first position, the feeding unit is in the first state, and the first conveying device is suitable for receiving the material box. When the first conveying device is located at the second position, the feeding unit is in the second state, and the first conveying device is suitable for transferring the material box from the sheet material preparation part to the material box unloading part.

3. The stacking device according to claim 2, characterized in that The feeding unit also includes: A first lifting member is provided on the first conveying device, and the first lifting member is suitable for extending into the material box of the sheet material preparation part and lifting the sheet material in the material box.

4. The stacking device according to claim 2, characterized in that The feeding unit also includes: A second conveying device, the second conveying device is arranged on the frame, the second conveying device is provided with a first conveying layer and a second conveying layer spaced apart and distributed along a first direction, the first conveying layer is formed as a material preparation part of the material box, and the second conveying layer is formed as a material unloading part of the material box; When the feeding unit is in the first state, the first conveying layer is suitable for cooperating with the first conveying device to convey the material box from the material box preparation part to the sheet material preparation part; When the feeding unit is in the second state, the second conveying layer is suitable for cooperating with the first conveying device to convey the material box from the sheet material preparation part to the material box unloading part.

5. The stacking device according to claim 4, characterized in that The first direction is a vertical direction, the second conveying device is movably arranged on the frame along the first direction, and the feeding unit further includes: A second driving member is disposed on the frame, and the second driving member is connected to the second conveying device to drive the second conveying device to move along the first direction.

6. The stacking device according to claim 4, characterized in that The stacking device is provided with a frame, and the feeding unit further comprises: A material loading and transporting device, the material loading and transporting device is arranged on the frame, and the material loading and transporting device is suitable for transporting the sheet material on the sheet material preparation part to a first predetermined position; a third conveying device, a portion of which is disposed at the first predetermined position to receive the sheet material, and the third conveying device is suitable for conveying the sheet material to a second predetermined position; A turning and transporting device, the turning and transporting device is arranged on the frame, and the turning and transporting device is suitable for transporting the sheet material at the second predetermined position to the feeding position; Wherein, the sheet material preparation section, the first predetermined position and the second predetermined position are distributed along a second direction, and the second predetermined position and the feeding position are distributed along a third direction.

7. The stacking device according to claim 6, characterized in that The loading and handling device comprises: A first suction cup module, wherein the first suction cup module is suitable for controllably sucking the sheet material; a first driving module, the first driving module is disposed on the frame, the first driving module is connected to the first suction cup module, and the first driving module is suitable for driving the first suction cup module to move between a third position and a fourth position; Wherein, when the first suction cup module is located at the third position, the first suction cup module corresponds to the sheet material preparation part, and when the first suction cup module is located at the fourth position, the first suction cup module corresponds to the first predetermined position.

8. The stacking device according to claim 7, characterized in that The first suction cup module is suitable for controllably sucking sheet materials and / or separator paper, a material storage portion is provided between the sheet material preparation portion and the second conveying device, and the first driving module is suitable for driving the first suction cup module to move between the third position, the fourth position and the fifth position; Wherein, when the first suction cup module is located at the fifth position, the first suction cup module corresponds to the material storage portion, so that the first suction cup module can place the separator paper and / or sheet material in the material storage portion.

9. The stacking device according to claim 7, characterized in that: The first suction cup module comprises a first suction cup portion and a second suction cup portion, The first suction cup portion is suitable for controllably sucking the sheet material, and the second suction cup portion is suitable for controllably sucking the separator paper, so that the first suction cup module can synchronously suck the sheet material and the separator paper under the sheet material.

10. The stacking device according to claim 8, characterized in that The feeding module also includes: A material detection unit is provided at one side of the material storage portion, and the material detection unit is suitable for detecting whether the first suction cup module absorbs multiple sheets of material and / or separator paper.

11. The stacking device according to claim 6, characterized in that The overturning and transporting device comprises: A movable frame, wherein the movable frame is provided with a pivot shaft extending along the second direction, and the movable frame is pivotally provided on the frame between a sixth position and a seventh position around the axis of the pivot shaft; A third driving member, the third driving member is disposed on the frame, and the third driving member is connected to the pivot shaft to drive the movable frame to pivot; A connecting shaft, the connecting shaft extending along the second direction, the connecting shaft being rotatably disposed on the movable frame around its axis; A second suction cup module, the second suction cup module is suitable for controllably sucking the sheet material, and the second suction cup module is rotatably arranged on the connecting shaft around an axis extending in the first direction; a fourth driving member, the fourth driving member being disposed on the connecting shaft and connected to the second suction cup module to drive the second suction cup module to rotate; A synchronization component, the synchronization component is arranged between the pivot shaft and the connecting shaft to make the connecting shaft and the pivot shaft rotate synchronously; Wherein, when the movable frame is located at the sixth position, the second suction cup module corresponds to the second predetermined position, and when the movable frame is located at the seventh position, the second suction cup module corresponds to the feeding position.

12. The stacking device according to claim 11, characterized in that The synchronization component includes: Two synchronous wheels, one of which is fixedly connected to the pivot shaft, and the other is fixedly connected to the connecting shaft; A synchronous belt is sleeved on the two synchronous wheels, and the synchronous wheels are respectively meshed with the two synchronous wheels.

13. The stacking device according to claim 1, characterized in that The feeding module also includes: A deflection correction device, each of the feeding positions is provided with the deflection correction device, the deflection correction device is suitable for carrying the sheet material and deflecting the sheet material; A deflection correction detection unit is provided on the periphery of each deflection correction device, and the deflection correction detection unit is suitable for detecting the position of the sheet material at the feeding position.

14. The stacking device according to claim 13, characterized in that The bearing surface of the deviation-correcting device is provided with adsorption holes, and the adsorption holes are suitable for controllably adsorbing the sheet material at the feeding position.

15. The stacking device according to claim 1, characterized in that The two feeding positions are spaced apart and distributed along the third direction, a stacking position is provided between the two feeding positions, and the stacking module comprises: A stacking lifting device, the stacking lifting device is arranged at the stacking position, the stacking lifting device is provided with a lifting portion movable along a first direction, the lifting portion is suitable for carrying stacked sheets; a second driving module, wherein the second driving module is provided with a power output portion, and the power output portion is movable between an eighth position and a ninth position along the third direction; Two third suction cup modules, the third suction cup modules are arranged at the power output part, and the two third suction cup modules are spaced apart and distributed along the third direction; Wherein, when the power output part is located at the eighth position, the first of the third suction cup modules corresponds to the first feeding position, and the second of the third suction cup modules corresponds to the stacking position; When the power output part is located at the ninth position, the first of the third suction cup modules corresponds to the stacking position, and the second of the third suction cup modules corresponds to the second feeding position.

16. The stacking device according to claim 15, characterized in that The stack lifting device is provided with two guide columns, the two guide columns are spaced apart along the second direction, and the two guide columns cooperate to guide the stacked sheets.

17. The stacking device according to claim 16, characterized in that In the second direction, the projections of the two guide posts at least partially do not overlap.

18. The stacking device according to claim 15, characterized in that The stacking module further comprises: An alignment detection unit is provided at the periphery of the stacking position, and is suitable for detecting the alignment of the stacked sheets.

19. The stacking device according to claim 6, characterized in that The feeding unit also includes: An NG material box is provided at an end of the third conveying device away from the sheet material preparation portion, and the third conveying device is suitable for conveying sheets to the NG material box.

20. The stacking device according to claim 6, characterized in that The feeding unit also includes: A barcode scanner is arranged at one side of the third conveying device, and is suitable for scanning the sheets on the third conveying device.

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