A feeding device and feeding method for a lithium battery electrode sheet

Abstract

The present invention belongs to the field of lithium battery packaging, and discloses a feeding device for lithium battery electrode sheets. With a simple structure, the electrode sheets can be in the in-place position without manual labor, and the conveying process of the electrode sheets is also very stable. It includes a vertical driving unit and an adsorption assembly. The vertical driving unit includes a feeding support plate that is inclined and movable along the vertical direction, and the lower end of the feeding support plate has a horizontal support plate flange; the electrode sheet is leaned against the upward-facing surface of the feeding support plate, and the installation flange corresponds to the edge line of the support plate flange; the adsorption assembly includes an adsorption air disc that is movable along the vertical direction, and the adsorption air disc is used to push the installation flange to be tightly attached to the surface of the support plate flange and adsorb the electrode sheet through the installation flange. The present invention also discloses a feeding method for lithium battery electrode sheets implemented by the above-mentioned feeding device for lithium battery electrode sheets.

Description

Technical Field

[0001] The present invention belongs to the field of lithium battery packaging, and particularly relates to a feeding device and a feeding method for lithium battery electrode sheets. Background Art

[0002] In the processing and production of lithium batteries, it is necessary to package the lithium batteries. During the lithium battery packaging process, the feeding operation process of the electrode sheets is essential. The feeding operation process is to position the electrode sheets before lithium battery packaging. As Figure 1 shown, common lithium battery electrode sheets have installation flanges, and there are multiple flange through holes on the installation flanges. Before lithium battery packaging, the installation flanges of the lithium battery electrode sheets in the positioned position are set horizontally.

[0003] Currently, the feeding operation process of the electrode sheets cannot achieve full automation, which is manifested as the need for human participation to position the electrode sheets, which undoubtedly leads to low feeding efficiency. Moreover, during operation, the electrode sheets are prone to sliding during transportation, thus affecting the feeding effect. In addition, the device is prone to shaking during operation, resulting in reduced feeding accuracy. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a feeding device and a feeding method for lithium battery electrode sheets, which can position the electrode sheets without human effort through a simple structure, significantly improving the feeding efficiency. Moreover, the transportation process of the electrode sheets is also very stable, basically avoiding the shaking phenomenon during the feeding process of the lithium battery, thereby greatly improving the feeding accuracy during the automatic feeding process.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A feeding device for lithium battery electrode sheets, the electrode sheets having installation flanges, characterized in that it includes: a vertical driving unit, including a feeding support plate that is inclined and movable in the vertical direction, and the lower end of the feeding support plate has a horizontal support plate flange; the electrode sheets are leaned against the upward-facing surface of the feeding support plate, and the installation flanges correspond to the edge lines of the support plate flanges; and an adsorption assembly, including an adsorption air disc that is movable in the vertical direction, and the adsorption air disc is used to push the installation flanges to be tightly attached to the surface of the support plate flanges and adsorb the electrode sheets through the installation flanges.

[0007] Preferably, the present invention further includes a feeding base, including a horizontally arranged feeding substrate. The vertical driving unit further includes a vertical driving cylinder and a moving seat. The vertical driving cylinder penetrates through the feeding substrate and has a vertical output rod. The moving seat is arranged on the output rod of the vertical driving cylinder, and the support plate flange is detachably arranged on the moving seat.

[0008] Further, the vertical driving unit further includes a column assembly, the column assembly includes a vertical guide column, a guide rail is provided on the guide column, and the moving seat is matched with the guide rail through a guide shoe.

[0009] Still further, the column assembly further includes an auxiliary positioning column. The auxiliary positioning column and the guide column are respectively arranged on both sides of the moving seat, and both the auxiliary column and the guide column are closely arranged on the end face of the free end of the folded edge of the pallet.

[0010] Further, the vertical driving unit includes an electrode sheet placing assembly. The electrode sheet placing assembly includes a loading pallet and a pair of vertically arranged limiting rods, and the limiting rods are used to limit the linear movement of the electrode sheet on the loading pallet.

[0011] Still further, the loading base further includes a loading rodless cylinder and a loading base frame. Taking the direction from the column assembly to the electrode sheet placing assembly as the loading direction, the loading substrate is movably arranged on the loading base frame along the loading direction through the loading rodless cylinder.

[0012] Still further, the number of the electrode sheet placing assemblies is two, and they are respectively arranged on both sides of the column assembly.

[0013] Preferably, the adsorption assembly further includes an adsorption driving cylinder and an adsorption moving substrate. The adsorption driving cylinder has a vertical output rod, and the free end of the output rod faces downward. The adsorption moving substrate is arranged on the output rod of the adsorption driving cylinder, and the adsorption air disc is arranged on the lower plate surface of the adsorption moving substrate.

[0014] Further, the adsorption assembly further includes a telescopic rod. The telescopic rod is elastically telescopic and can be reset through a spring member arranged inside. The adsorption air disc is arranged on the adsorption moving substrate through the telescopic rod.

[0015] A method for loading a lithium battery electrode sheet, which is implemented by the above loading device, is characterized by including the following steps:

[0016] Step S1: Lean the electrode sheet against the loading pallet, and make the installation folded edge correspond to the ridge line of the pallet folded edge;

[0017] Step S2: Move the loading substrate along the loading direction so that the installation folded edge is located directly below the adsorption air disc;

[0018] Step S3: Move the adsorption air disc downward along the vertical direction. The adsorption air disc pushes the installation folded edge to be tightly attached to the surface of the pallet folded edge and adsorbs the electrode sheet through the installation folded edge.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The feeding device for the lithium battery electrode sheet of the present invention includes a vertical driving unit and an adsorption assembly. The vertical driving unit includes a feeding support plate that is inclined and movable in the vertical direction, and the lower end of the feeding support plate has a horizontal support plate flange; the electrode sheet is placed against the upward-facing surface of the feeding support plate, and the installation flange corresponds to the edge line of the support plate flange; the adsorption assembly includes an adsorption air disc that is movable in the vertical direction, and the adsorption air disc is used to push the installation flange to be tightly attached to the surface of the support plate flange and adsorb the electrode sheet through the installation flange. Therefore, the present invention can place the electrode sheet in the in-position position without manual labor through a simple structure, significantly improving the feeding efficiency. Moreover, the conveying process of the electrode sheet is also very stable, basically avoiding the shaking phenomenon during the feeding process of the lithium battery, thus greatly improving the feeding accuracy during the automatic feeding process.

[0021] 2. Since the column assembly of the present invention further includes an auxiliary positioning column, the auxiliary positioning column and the guiding column are respectively arranged on both sides of the moving seat, and both the auxiliary positioning column and the guiding column are tightly attached to the end surface of the free end of the support plate flange. Therefore, the feeding support plate of the present invention is fixed at the end surface by the guiding column and the auxiliary positioning column at both ends, making the feeding support plate more stable during the feeding process.

[0022] 3. Since the vertical driving unit of the present invention includes an electrode sheet placement assembly, the electrode sheet placement assembly includes a feeding support plate and a pair of vertically arranged limiting rods, and the limiting rods are used to limit the linear movement of the electrode sheet on the feeding support plate. Therefore, the present invention enables the motor sheet to be conveniently placed on the feeding support plate and maintain an accurate processing position through the limiting rods.

[0023] 4. Since the number of the electrode sheet placement assemblies of the present invention is two, which are respectively arranged on both sides of the column assembly, the present invention can perform the feeding operation on two electrode sheets simultaneously by placing the electrode sheet placement assemblies on both sides, thereby further improving the efficiency of the feeding work.

[0024] 5. Since the adsorption assembly of the present invention further includes a telescopic rod, the telescopic rod is elastically telescopic and can be reset through a spring member provided inside, and the adsorption air disc is arranged on the adsorption moving substrate through the telescopic rod. Therefore, the present invention effectively buffers the impact generated by the downward adsorption action of the adsorption air disc through the telescopic rod, thereby avoiding a large downward pressure impact on the electrode sheet by the adsorption air disc.

[0025] 6. The feeding method for the lithium battery electrode sheet of the present invention is implemented by the above-mentioned feeding device, and is characterized in that it includes the following steps:

[0026] Step S1: Place the electrode sheet against the feeding support plate, and make the installation flange correspond to the edge line of the support plate flange;

[0027] Step S2: Move the loading substrate in the loading direction so that the mounting flange is directly below the suction air disc;

[0028] Step S3: Move the suction air disc downward in the vertical direction. The suction air disc pushes the mounting flange to closely adhere to the surface of the support plate flange and adsorbs the electrode sheet through the mounting flange.

[0029] Therefore, the loading device for lithium battery electrode sheets of the present invention, in cooperation with the loading method for lithium battery electrode sheets, can better achieve fully automatic and precise loading of lithium battery electrode sheets. Description of the Drawings

[0030] Figure 1 Schematic diagram of a lithium battery electrode plate in the prior art;

[0031] Figure 2 Schematic diagram of the loading device for lithium battery electrode sheets in an embodiment of the present invention;

[0032] Figure 3 Stereoscopic schematic diagram of the loading base in a bottom view perspective in an embodiment of the present invention;

[0033] Figure 4 Stereoscopic schematic diagram of the loading substrate and the vertical driving unit in an embodiment of the present invention;

[0034] Figure 5 Cooperative schematic diagram of the loading support plate, the column assembly, and the vertical driving cylinder in an embodiment of the present invention;

[0035] Figure 6 Stereoscopic schematic diagram of the loading support plate in an embodiment of the present invention;

[0036] Figure 7 Stereoscopic schematic diagram of the moving fixed truss and the adsorption assembly in an embodiment of the present invention;

[0037] Figure 8 Schematic diagram of the steps of the loading method for lithium battery electrode sheets in an embodiment of the present invention.

[0038] In the figure: A, electrode plate; 100, feeding device for lithium battery electrode plate; 10, feeding base; 11, moving and fixing truss; 12, moving cylinder; 13, feeding base frame; 14, feeding substrate; 15, feeding rodless cylinder; 16, cylinder fixing plate; 20, vertical driving unit; 21, vertical driving cylinder; 22, moving seat; 23, column assembly; 231, guiding column; 2311, guiding rail; 232, auxiliary positioning column; 24, electrode plate placing assembly; 241, feeding support plate; 2411, support plate hem; 242, limiting rod; 30, adsorption assembly; 31, adsorption driving cylinder; 32, adsorption moving substrate; 33, telescopic rod; 34, adsorption air disc; 35, vacuum pump; 36, positioning pin column; S100, feeding method for lithium battery electrode plate. Detailed implementation mode

[0039] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the following embodiments will specifically elaborate on a feeding device and a feeding method for lithium battery electrode plates of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation to the present invention.

[0040] As Figure 2 shown, a feeding device 100 for lithium battery electrode plates in this embodiment, the lithium battery electrode plate has an installation hem, and there are a plurality of hem through holes on the installation hem.

[0041] The feeding device 100 for lithium battery electrode plates includes a feeding base 10, a vertical driving unit 20 and an adsorption assembly 30.

[0042] The feeding base 10 is a platform for installing other components of the feeding device 100 for lithium battery electrode plates in this embodiment, and includes a moving and fixing truss 11, a moving cylinder 12, a feeding base frame 13, a feeding substrate 14, a feeding rodless cylinder 15 and a cylinder fixing plate 16.

[0043] Specifically, the moving and fixing truss 11 is a gantry formed by fixing and erecting a plurality of vertical and horizontal linear profiles, and the moving cylinder 12 is a horizontal rodless cylinder located at the upper end of the moving and fixing truss 11.

[0044] Both the feeding base frame 13 and the feeding substrate 14 are located directly below the moving cylinder 12. The feeding substrate 14 is horizontally and movably arranged at the upper end of the feeding base frame 13. Specifically, taking the horizontal direction perpendicular to the moving cylinder 12 as the feeding direction, the feeding substrate 14 is movably arranged along the feeding direction. In this embodiment, the feeding base frame 13 is a pair of vertically arranged support plates, and its top has a linear guide formed along the feeding direction, and the feeding substrate 14 is arranged on this linear guide.

[0045] AsFigure 3 As shown, the loading substrate 14 is movably arranged on the loading base frame 13 along the loading direction through a rodless cylinder 15 for loading. Specifically, the rodless cylinder 15 is fixed on the loading substrate 14 through a cylinder fixing plate 16, and the slider of the rodless cylinder 15 is fixedly arranged on the loading base frame 13 through a connecting piece. Thus, when the rodless cylinder 15 acts, the loading substrate 14 moves along the loading direction on the loading base frame 13.

[0046] As Figures 4 to 6 shown, the vertical driving unit 20 includes a vertical driving cylinder 21, a moving seat 22, a column assembly 23, and an electrode sheet placing assembly 24.

[0047] The vertical driving cylinder 21 passes through the loading substrate 14 and has a vertical output rod. The moving seat 22 is arranged on the output rod of the vertical driving cylinder 21. Specifically, the vertical driving cylinder 21 is located below the loading substrate 14, and the moving seat 22 is located above the loading substrate 14.

[0048] The column assembly 23 includes a guiding column 231 and an auxiliary positioning column 232 that are both vertically arranged, and the auxiliary positioning column 232 and the guiding column 231 are respectively arranged on both sides of the moving seat 22. The guiding column 231 has a guiding rail 2311, and the moving seat 22 is matched with the guiding rail 2311 through a guide shoe. Specifically, the guiding column 231 and the auxiliary positioning column 232 are distributed in a direction perpendicular to the loading direction.

[0049] The number of the electrode sheet placing assemblies 24 is two, which are distributed along the loading direction and are respectively arranged on both sides of the column assembly 23. The electrode sheet placing assembly 24 includes a loading support plate 241 and a pair of vertically arranged limiting rods 242. Specifically, the pair of vertically arranged limiting rods 242 are distributed in a direction perpendicular to the loading direction.

[0050] The loading support plate 241 is inclined, and the lower end of the loading support plate has a horizontal support plate folding edge 2411. The support plate folding edge 2411 is detachably arranged on the upper end surface of the moving seat 22 through a fastening screw. The lithium battery electrode sheet A abuts against the upward-facing plate surface of the loading support plate 2411, and the installation folding edge corresponds to the ridge line of the support plate folding edge 2411. Thus, when the vertical driving cylinder 21 acts, the loading support plate 241 can move vertically relative to the upper end plate surface of the loading substrate 14, and the end surface of the free end of the support plate folding edge 2411 abuts against both the side surfaces of the auxiliary positioning column 232 and the guiding column 231.

[0051] The limiting rods 242 are respectively arranged on both sides of the loading pallet 241. The paired limiting rods 242 are used to limit the linear movement of the electrode sheet A on the loading pallet 241. In this embodiment, the pallet flange 2411 is a protruding flange structure, that is, a right-angle surface is formed at the pallet flange 2411. The cross-section of the limiting rod 242 is rectangular, and the loading pallet 241 is in complete contact with the two side surfaces of the limiting rod 242 through this right-angle surface.

[0052] Specifically, the loading direction is the linear direction from the self-standing column assembly 23 to the electrode sheet placement assembly 24.

[0053] As Figure 7 shown, the adsorption assembly 30 includes an adsorption driving cylinder 31, an adsorption moving substrate 32, a telescopic rod 33, an adsorption air disc 34 and a positioning pin column 36.

[0054] Specifically, the adsorption driving cylinder 31 is connected to a sheet metal part and fixedly arranged on the slider of the moving cylinder 12. The adsorption driving cylinder 31 has a vertical output rod, and the free end of the output rod faces downward. The adsorption moving substrate 32 is arranged on the free end of the output rod of the adsorption driving cylinder 31 and is horizontally arranged.

[0055] The telescopic rod 33 is elastically telescopic in a resetable manner through a built-in spring member. The adsorption air disc 34 is arranged at the lower end of the telescopic rod and is arranged on the lower plate surface of the adsorption moving substrate 32 through the telescopic rod 33. Specifically, the adsorption air disc 34 is a vacuum air disc. A vacuum pump 35 is also arranged on the adsorption moving substrate 32. The adsorption air disc 34 is connected to the vacuum pump 35 through the air path arranged inside the telescopic rod 33. Thus, driven by the adsorption driving cylinder 31, the adsorption air disc descends in the vertical direction, pushes the installation flange of the electrode sheet A to be closely attached to the surface of the pallet flange 2411, and adsorbs the electrode sheet A through the adsorption of the installation flange by the adsorption air disc 34. Specifically, the number of the telescopic rods 33, the adsorption air discs 34 and the positioning pin columns 36 is 4. During the loading operation, each electrode sheet corresponds to two telescopic rods 33, adsorption air discs 34 and positioning pin columns 36. The adsorption air disc 34 is used to adsorb the electrode sheet A, and the positioning pin column 36 is used to correspondingly penetrate into the flange through-hole to fix the pose of the electrode sheet A.

[0056] As Figure 8 shown, the loading method S100 of the lithium battery electrode sheet in this embodiment is implemented by the above loading device and includes the following steps:

[0057] Step S1: Lean the electrode sheet A against the loading pallet 241, and make the installation flange correspond to the edge line of the pallet flange 2411.

[0058] Step S2: Move the loading substrate 14 along the loading direction so that the installation flange is located directly below the adsorption air disc 34.

[0059] Specifically, after step S1, the control system drives the feeding rodless cylinder 15 to drive the feeding substrate 14 to drive the motor sheet A to move horizontally along the feeding direction towards the moving fixed truss 11; by controlling the moving cylinder 12 to drive the adsorption driving cylinder 31 to move horizontally towards the feeding substrate 14. Finally, the installation hem is located directly below the adsorption air disc 34, and at this time, the positioning pin column 36 corresponds to the inclined hem through hole.

[0060] Step S3: Move the adsorption air disc 34 downward in the vertical direction. The adsorption air disc 34 pushes the installation hem to be tightly attached to the surface of the pallet hem 2411 and adsorbs the electrode sheet A through the installation hem.

[0061] Specifically, after step S1, the control system drives the adsorption driving cylinder 31 to drive the adsorption moving substrate 32 to drive the adsorption air disc 34 to move in the vertical direction towards the installation hem of the electrode sheet A.

[0062] Specifically, after the adsorption of the electrode sheet A is completed, the control system drives the adsorption driving cylinder 31 to move horizontally away from the feeding substrate 14 by controlling the moving cylinder 12, so as to move the motor sheet A adsorbed on the adsorption air disc 34 to the subsequent operation station.

[0063] The above embodiments are preferred cases of the present invention and are not used to limit the protection scope of the present invention. Various deformations or modifications that can be made by those of ordinary skill in the art without creative labor within the scope of the appended claims still fall within the protection scope of this patent.

Claims

1. A feeding device for a lithium battery electrode sheet, the electrode sheet having a mounting hem, characterized in that, Comprising: A vertical driving unit, including a loading pallet that is inclined and vertically movable, and the lower end of the loading pallet has a horizontal pallet flange; The electrode sheet is abutted against the upward-facing surface of the loading pallet, and the mounting flange corresponds to the edge line of the pallet flange; And An adsorption assembly, including an adsorption air disc that is vertically movable, and the adsorption air disc is used to push the mounting flange to be closely attached to the surface of the pallet flange and adsorb the electrode sheet through the mounting flange.

2. The feeding device for the lithium battery electrode sheet according to claim 1, wherein Further comprising: A loading base, including a horizontally arranged loading substrate, The vertical driving unit further includes a vertical driving cylinder and a moving seat, The vertical driving cylinder is penetrated through the loading substrate and has a vertical output rod, the moving seat is arranged on the output rod of the vertical driving cylinder, and the pallet flange is detachably arranged on the moving seat.

3. The loading device for lithium battery electrode sheets according to claim 2, wherein: Among them, The vertical driving unit further includes a column assembly, the column assembly includes a vertical guiding column, and the guiding column has a guiding rail, and the moving seat is matched with the guiding rail through a guide shoe.

4. The loading device for lithium battery electrode sheets according to claim 3, wherein: Among them, The column assembly further includes an auxiliary positioning column, the auxiliary positioning column and the guiding column are respectively arranged on both sides of the moving seat, and both the auxiliary column and the guiding column are closely attached to the end surface of the free end of the pallet flange.

5. The loading device for lithium battery electrode sheets according to claim 3, wherein: Among them, The vertical driving unit includes an electrode sheet placing assembly, the electrode sheet placing assembly includes the loading pallet and a pair of vertically arranged limiting rods, and the limiting rods are used to limit the linear movement of the electrode sheet on the loading pallet.

6. The loading device for lithium battery electrode sheets according to claim 5, wherein: Among them, The loading base further includes a loading rodless cylinder and a loading base frame, Taking the direction from the column assembly to the electrode sheet placing assembly as the loading direction, the loading substrate is movably arranged on the loading base frame along the loading direction through the loading rodless cylinder.

7. The loading device for lithium battery electrode sheets according to claim 5, wherein: Among them, The number of the electrode sheet placing assemblies is two, and they are respectively arranged on both sides of the column assembly.

8. The loading device for lithium battery electrode sheets according to claim 1, wherein: Among them, The adsorption assembly further includes an adsorption driving cylinder and an adsorption moving substrate, The adsorption driving cylinder has a vertical output rod, and the free end of the output rod faces downward, the adsorption moving substrate is arranged on the output rod of the adsorption driving cylinder, and the adsorption air disc is arranged on the lower plate surface of the adsorption moving substrate.

9. The loading device for lithium battery electrode sheets according to claim 8, wherein: Among them, The adsorption assembly further includes a telescopic rod, the telescopic rod is elastically telescopic and can be reset through a spring member arranged inside, and the adsorption air disc is arranged on the adsorption moving substrate through the telescopic rod.

10. A method for feeding a lithium battery electrode sheet, implemented by the feeding device according to claim 6, characterized in that, Including the following steps: Step S1: Lean the electrode sheet against the loading pallet, and make the installation hem corresponding to the edge line of the pallet hem; Step S2: Move the loading substrate along the loading direction so that the installation hem is directly below the adsorption air disc; Step S3: Move the adsorption air disc downward in the vertical direction. The adsorption air disc pushes the installation hem to be tightly attached to the surface of the pallet hem and adsorbs the electrode sheet through the installation hem.

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