Lamination device
By designing the drive roller mechanism and guide roller mechanism, and combining oscillation and spiral positioning, the problems of efficiency and accuracy of lithium battery stacking were solved, and efficient and accurate electrode stacking was achieved.
Patent Information
- Application Number
- CN202422762874.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-11-12
AI Technical Summary
In existing lithium battery stacking processes, robotic arms have low gripping efficiency and poor core alignment, while pneumatic blowing methods result in low stacking quality.
The electrode sheets are vertically downwards by employing a drive roller mechanism and a guide roller mechanism. The guide rollers have alternating guide arc surfaces and notches, and the electrode sheets are accurately stacked by combining a swing mechanism and a spiral positioning mechanism.
This improves stacking efficiency and accuracy, ensuring the quality and consistency of electrode sheets stacked sequentially on the receiving stage.
Smart Images
Figure CN223956573U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a battery technical field especially relates to a lamination device. BACKGROUND
[0002] In the manufacturing process of lithium battery, generally including winding process and lamination process. In the lamination process, the sheet-shaped pole piece needs to be stacked in turn, for example, using drop lamination method and Z lamination method. Among them, Z lamination method uses mechanical hand to grab and stack, and the mechanical hand needs response time in the feeding and carrying process, thereby leading to low efficiency. While the drop lamination process uses air pressure to blow the pole piece, although the efficiency is faster, the blowing method is not fixed due to the airflow direction, which easily leads to poor alignment of the stacked core and low stacking quality. SUMMARY
[0003] To solve at least one problem existing in the prior art, according to one aspect of the utility model, a lamination device is provided, comprising: a driving roller mechanism for guiding the pole piece to move in a vertical downward manner; a guide mechanism arranged below the driving roller mechanism, comprising two oppositely arranged guide rollers, each of the guide rollers has a guide arc surface and a notch arranged along the axial direction of the guide roller, the guide arc surface is used to fit the pole piece when the guide roller is in a guiding posture, and the notch is used to separate the guide roller from the pole piece when the guide roller is in an idle posture, wherein the guiding postures of the two guide rollers are alternately arranged; a receiving table arranged below the guide mechanism for receiving the pole piece guided by the guide mechanism so that the pole pieces are stacked in turn; a swing mechanism for mounting the driving roller mechanism to enable the driving roller mechanism to swing cyclically between the two guide rollers to periodically deliver the pole piece to each guide roller.
[0004] In some embodiments, the lamination device further comprises a spiral positioning mechanism arranged between the guide mechanism and the receiving table for receiving the pole piece guided by the guide mechanism in a spiral manner and outputting to the receiving table.
[0005] In some embodiments, the spiral positioning mechanism comprises two oppositely arranged spiral positioning members, one of which corresponds to be arranged below one of the guide rollers.
[0006] In some embodiments, the spiral positioning member comprises a first driving member, a mounting rod and a spiral head, the mounting rod is connected between the first driving member and the spiral head, the first driving member is used to drive the spiral head to rotate, and the spiral head is provided with a spiral groove.
[0007] In some embodiments, the installation rod is arranged on one side of the guide roller, and the guide roller is provided with an avoiding opening for avoiding the installation rod.
[0008] In some embodiments, the guide roller comprises a central roller and a plurality of guide frames arranged on the central roller and spaced along the axial direction of the central roller, the guide frames are provided with the guide arc surfaces, and the avoiding openings are formed between adjacent two guide frames.
[0009] In some embodiments, the central angle of the guide arc surface ranges from 60 to 210 degrees.
[0010] In some embodiments, the lamination device further comprises a lifting driving device for installing the receiving table to drive the receiving table to lift.
[0011] In some embodiments, the driving roller mechanism comprises a mounting frame, a driving motor, a pair of driving rollers and a pair of driven rollers arranged below the pair of driving rollers, the driving motor is connected to one of the driving rollers to drive the driving roller to rotate.
[0012] In some embodiments, the guide roller is provided with a negative pressure suction port.
[0013] In summary, the lamination device has the following technical effects:
[0014] The driving roller mechanism is used for conveying the pole piece, so that the pole piece can move in a vertical downward manner, after the pole piece is conveyed out, the guide arc surfaces of the two guide rollers are used for sequentially adhering and conveying the pole piece, so that the pole piece is sequentially conveyed to the receiving table, the driving roller mechanism is periodically driven to be close to each guide roller through the setting of the swing mechanism, so that the pole piece can be periodically conveyed to each guide roller, so that each guide roller can sequentially guide and convey the pole piece, thereby realizing the effect of sequential stacking, since the whole lamination process can be continuously performed, the lamination efficiency is higher; meanwhile, the two guide rollers are sequentially guided, so that the accuracy of lamination is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a three-dimensional schematic view of the lamination device of the utility model embodiment;
[0016] Figure 2 It is a structural schematic view of the lamination device in Figure 1 ;
[0017] Figure 3 It is a structural schematic view of the lifting driving device and the receiving table of the utility model embodiment.
[0018] The drawings: 100 - laminated device, 10 - drive roller mechanism, 11 - drive motor, 12 - driving roller, 13 - driven roller, 14 - mounting frame, 20 - guide mechanism, 21 - guide roller, 211 - guide camber, 212 - gap, 213 - avoidance, 215 - center roller, 216 - guide frame, 30 - receiving table, 40 - swing mechanism, 50 - spiral positioning mechanism, 51 - spiral positioning piece, 511 - first driving piece, 512 - mounting rod, 513 - spiral head, 514 - spiral groove, 60 - lifting drive device, 61 - mounting table, 62 - linear drive module, 200 - pole piece. DETAILED DESCRIPTION
[0019] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application.
[0020] In the description of the present application, it should be pointed out that the orientations or position relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.
[0022] The present application will be further described in detail below in combination with the drawings.
[0023] Please refer to Figures 1 to 3 The laminated device 100 provided by the embodiments of the present application comprises a drive roller mechanism 10, a guide mechanism, a receiving table 30 and a swing mechanism 40.
[0024] Among them, please refer to Figure 1 And Figure 2The driving roller mechanism 10 is used to guide the movement of the pole piece 200 in a vertical downward manner; the guide mechanism 20 is arranged below the driving roller mechanism 10 and comprises two oppositely arranged guide rollers 21, each of which has a guide arc surface 211 used to fit the pole piece 200 when the guide roller 21 is in a guiding posture, and a gap 212 arranged along the axial direction of the guide roller 21, which is used to make the guide roller 21 disengage from the pole piece 200 when the guide roller 21 is in an idle posture, wherein the guiding postures of the two guide rollers 21 are alternately arranged; the receiving table 30 is arranged below the guide mechanism 20 and is used to receive the pole piece 200 guided by the guide mechanism 20 so as to make the pole piece 200 be stacked one by one; and the swing mechanism 40 is used to mount the driving roller mechanism 10 so as to enable the driving roller mechanism 10 to swing between the two guide rollers 21 cyclically to periodically deliver the pole piece 200 to each guide roller 21.
[0025] The above-mentioned lamination device 100 delivers the pole piece 200 through the driving roller mechanism 10, so that the pole piece 200 can move in a vertical downward manner, and after the pole piece 200 is delivered, the guide arc surfaces 211 of the two guide rollers 21 are used to fit and deliver the pole piece 200 one by one to achieve the effect of delivering to the receiving table 30 one by one, and through the arrangement of the swing mechanism 40, the driving roller mechanism 10 can be periodically driven to approach each guide roller 21 to periodically deliver the pole piece 200 to each guide roller, so that each guide roller 21 can deliver the pole piece 200 one by one to achieve the effect of stacking one by one. Since the entire lamination process can be continuously performed, the lamination efficiency is higher; and through the lamination of the two guide rollers 21 one by one, the accuracy of lamination is ensured.
[0026] It should be noted that the guiding posture referred to in the embodiment refers to the posture of the guide roller 21 fitting the pole piece 200 to guide the movement of the pole piece 200, and the idle posture refers to the state of the guide roller 21 and the pole piece being disengaged and not being in contact with the pole piece.
[0027] Further, please refer to Figure 1 and Figure 2In order to better realize the positioning of the pole piece 200 stacked in front of the receiving table 30, the stacking device 100 further comprises a spiral positioning mechanism 50 arranged between the guide mechanism 20 and the receiving table 30, used to receive the pole piece 200 guided by the guide mechanism 20 in a spiral manner and output to the receiving table 30, so that when the two guide rollers 21 guide the pole piece 200 one by one, the pole piece 200 can be received in sequence, and the pole piece 200 is also rotated and dropped in sequence by the rotation of the spiral positioning mechanism 50, so as to be received by the receiving table 30, avoiding the situation that the pole piece 200 drifts after being guided by the guide roller 21, and improving the quality of the stacking of the pole piece 200.
[0028] It can be understood that the spiral positioning mechanism 50 is provided with a spiral groove 514 for clamping the pole piece 200, so that the pole piece 200 can be received and sequentially dropped during the rotation of the spiral positioning mechanism 50.
[0029] Specifically, the spiral positioning mechanism 50 of the embodiment comprises two oppositely arranged spiral positioning members 51, and one spiral positioning member 51 is arranged below one guide roller 21, so that through the arrangement of the two spiral positioning members 51, the opposite sides of the pole piece 200 can be limited, thereby further ensuring the positional accuracy of the pole piece 200 stacked on the receiving table 30. It can be understood that each spiral positioning member 51 is provided with a spiral groove 514 for limiting the pole piece 200.
[0030] Specifically, please refer to Figure 2 The spiral positioning member 51 comprises a first driving member 511, a mounting rod 512 and a spiral head 513, the mounting rod 512 is connected between the first driving member 511 and the spiral head 513, the first driving member 511 is used to drive the spiral head 513 to rotate, and the spiral head 513 is provided with a spiral groove 514, so that under the driving of the first driving member 511, the spiral head 513 performs spiral motion to sequentially position and rotate out the pole piece 200.
[0031] Among them, the mounting rod 512 of the embodiment is arranged at the side of the guide rod 21 and extends in the vertical direction, that is, the spiral head 513 also extends in the vertical direction, so that the pole piece 200 can be sequentially dropped in the manner of free fall.
[0032] It can be understood that, since the guide roller 21 has the guide arc surface 211 and the gap 212, that is, the radius of the position of the guide roller 21 with the guide arc surface 211 is large, in order to adapt to the arrangement of the guide roller 21, the mounting rod 512 is provided with the avoiding gap 213 for avoiding the mounting rod 512, so that when the guide arc surface 211 rotates to the position of the mounting rod 512, the avoiding gap 213 avoids the mounting rod 512, and interference with the mounting rod 512 is avoided. In other embodiments, the mounting rod 512 can be arranged below the spiral head 513, that is, below the guide roller 21, so as to avoid interference with the guide roller 21, and the gap 212 is avoided on the guide roller 21, thereby facilitating the molding of the guide roller 21. Or in another embodiment, the spiral head 513 can be arranged with a larger radius, so that the mounting rod 512 can be away from the guide roller 21, and the avoiding gap 213 on the guide roller 21 is avoided.
[0033] Further, in forming the guide arc surface 211 and the avoiding gap 213, the guide roller 21 includes a center roller 215 and a plurality of guide frames 216 arranged on the center roller 215, the plurality of guide frames 216 are arranged in the axial direction of the center roller 215, the guide frame 216 is provided with the guide arc surface 211, and the avoiding gap 213 is formed between the adjacent two guide frames 216, so that compared with the mode of arranging one whole guide arc surface structure on the center roller 215 and arranging the avoiding gap 213 on the guide arc surface structure, the mode of arranging a plurality of separated guide frames 216 in the axial direction of the center roller 215 can reduce the weight of the whole guide roller.
[0034] Please refer to Figure 2 The central angle of the guide arc surface 211 of the embodiment is 60-210°, that is, the central angle of the gap 212 is 150-300°, and through the arrangement of the central angle of the guide arc surface 211, the pole piece 200 is fitted and guided downward when the guide arc surface 211 rotates gradually, so as to avoid that the central angle of the guide arc surface 211 is too large to cause the pole piece 200 to be difficult to separate from the guide roller 21, and also avoid that the central angle of the guide arc surface 211 is too small to cause the guide arc surface 211 to not have a guiding effect on the pole piece 200.
[0035] The central angle of the guide arc surface 211 can be set to 60°, 120°, 150°, 180° or 210°, and the like, which is not limited herein.
[0036] Preferably, the central angle of the guide arc surface 211 of the embodiment is 180°, that is, a semicircle is arranged, and the gap 212 also presents a semicircle.
[0037] Specifically, two guide rollers 21 are positioned as guide roller a and guide roller b respectively in use, for example, as shown in FIG. 2, the driving roller mechanism 10 moves close to the guide roller a, and the pole piece 200 is conveyed to the guide roller a, the guide roller a rotates according to the arrow a as shown, and the guide effect is generated on the pole piece 200, at this time, the notch 212 of the guide roller b is oriented to the pole piece 200, and rotates in the direction shown by the arrow b; when the guide arc surface 211 of the guide roller 21a gradually separates from the pole piece 200, at this time, the driving roller mechanism 10 gradually moves close to the guide roller b under the driving of the swing mechanism 40, the guide arc surface 211 of the guide roller b gradually contacts the pole piece 200, that is, the rotation directions of the two guide rollers 21 are opposite, one rotates clockwise, and the other rotates counterclockwise, in this way, a cycle is realized, and the sequential guide effect of the two guide rollers 21 on the pole piece 200 is realized. Figure 2
[0038] It can be understood that the guide mechanism 20 of the embodiment further comprises two second driving members (not shown in the figure), one second driving member is connected to one guide roller 21 to drive the guide roller 21 to rotate.
[0039] Further, in order to ensure that the pole piece 200 can move in close contact with the surface of the guide roller 21, a negative pressure suction port (not shown in the figure) is arranged on the guide roller 21, so that when each guide roller 21 guides the pole piece 200 in close contact, a negative pressure is generated on the guide roller 21, that is, a negative pressure suction port is generated on the guide frame 216, the pole piece 200 can be adsorbed on the surface of the guide frame 216, so that the pole piece 200 can move according to the preset route under the movement guidance of the guide frame 216, and the pole piece 200 is prevented from being skewed.
[0040] Among them, please refer to Figure 1 and Figure 2 The driving roller mechanism 10 of the embodiment comprises a mounting frame 14, a driving motor 11 arranged on the mounting frame 14, a pair of driving rollers 12 and a pair of driven rollers 13, the pair of driven rollers 13 are arranged below the pair of driving rollers 12, the driving motor 11 is connected to one driving roller 12 to drive the driving roller 12 to rotate, in this way, the driving roller 12 moves downward under the driving of the driving motor 11, and the movement direction of the pole piece 200 is limited again by the driven roller 13, so as to ensure that the pole piece 200 can move in the vertical downward direction.
[0041] Please refer to Figure 3 In an embodiment of the utility model, in order to facilitate the continuous lamination, the lamination device 100 further includes lifting driving device 60, lifting driving device 60 is used to install receiving table 30, is used to drive receiving table 30 to lift, namely when receiving initial pole piece 200, receiving table 30 can be as close as possible to the spiral positioning mechanism 50, with the falling of pole piece 200, the gradually increasing pole piece 200 is stacked, every time pole piece 200 falls, lifting driving device 60 drives receiving table 30 to move downward the distance of a pole piece 200, with the gradual lowering of receiving table 30, until pole piece 200 is accumulated to the lamination height required by an electric core, the mechanical hand removes the electric core, and lifting driving device 60 drives receiving table 30 to move upward to carry out the receiving process of the next electric core, so as to realize the continuity of the whole lamination, guarantee the efficient lamination.
[0042] Wherein, lifting driving device 60 can include installation platform 61 and linear drive module 62 set on installation platform 61, linear drive module 62 is set along the vertical direction and is connected receiving table 30, so, under the driving of linear drive module 62, drive receiving table 30 to move up and down.
[0043] The above-mentioned lamination device 100 transports pole piece 200 through driving roller 12 and driven roller 13, and periodically guides one by one through two guide rollers 21, and then positions and downwardly transport by spiral positioning mechanism 50, so that pole piece 200 can fall on receiving table 30 in horizontal direction one by one, and receiving table 30 is driven to lift by lifting driving device 60, so that receiving table 30 can receive the height of pole piece 200 required by an electric core, facilitating the lamination of an electric core.
[0044] The technical means disclosed in the utility model scheme is not only limited to the technical means disclosed in the above-mentioned embodiment, but also includes the technical scheme composed of any combination of the above technical features. It should be pointed out that, for ordinary skilled persons in the art, under the premise of not departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered as the protection scope of the utility model.
Claims
1. A lamination device (100), characterized by The device comprises: a driving roller mechanism (10) for guiding the pole piece (200) to move in a vertical downward manner; a guiding mechanism (20) arranged below the driving roller mechanism (10), comprising two oppositely arranged guiding rollers (21), each of the guiding rollers (21) having a guiding arc surface (211) for fitting the pole piece (200) when the guiding roller (21) is in a guiding posture, and having a gap (212) arranged along the axial direction of the guiding roller (21) for separating the guiding roller (21) from the pole piece (200) when the guiding roller (21) is in an idle posture, wherein the guiding postures of the two guiding rollers (21) are alternately arranged; a receiving table (30) arranged below the guiding mechanism (20) for receiving the pole piece (200) guided by the guiding mechanism (20) so that the pole pieces (200) are sequentially stacked; a swing mechanism (40) for mounting the driving roller mechanism (10) to enable the driving roller mechanism (10) to swing between the two guiding rollers (21) to periodically deliver the pole piece (200) to each of the guiding rollers (21).
2. The lamination device (100) according to claim 1, characterized in that The stacking device (100) further comprises a spiral positioning mechanism (50) arranged between the guiding mechanism (20) and the receiving table (30) for receiving the pole piece (200) guided by the guiding mechanism (20) in a spiral manner and outputting to the receiving table (30).
3. The lamination device (100) according to claim 2, characterized in that The spiral positioning mechanism (50) comprises two oppositely arranged spiral positioning members (51), one of which is arranged below one of the guiding rollers (21).
4. The lamination device (100) according to claim 3, characterized in that The spiral positioning member (51) comprises a first driving member (511), a mounting rod (512), and a spiral head (513), the mounting rod (512) being connected between the first driving member (511) and the spiral head (513), the first driving member (511) being used to drive the spiral head (513) to rotate, and the spiral head (513) being provided with a spiral groove (514).
5. The lamination device (100) according to claim 4, characterized in that The mounting rod (512) is arranged on one side of the guiding roller (21), and the guiding roller (21) is provided with an avoiding opening (213) for avoiding the mounting rod (512).
6. The lamination device (100) according to claim 5, characterized in that The guiding roller (21) comprises a center roller (215) and a plurality of guiding frames (216) arranged on the center roller (215), the plurality of guiding frames (216) being arranged at intervals along the axial direction of the center roller (215), the guiding frame (216) being provided with the guiding arc surface (211), and the avoiding opening (213) being formed between two adjacent guiding frames (216).
7. The lamination device (100) according to any one of claims 1 to 6, characterized in that The central angle of the guiding arc surface (211) ranges from 60° to 210°.
8. The lamination device (100) according to any one of claims 1 to 6, characterized in that The stacking device (100) further comprises a lifting driving device (60) for mounting the receiving table (30) to drive the receiving table (30) to lift.
9. The lamination device (100) according to any one of claims 1 to 6, characterized in that The driving roller mechanism (10) comprises a mounting frame (14), a driving motor (11), a pair of driving rollers (12) and a pair of driven rollers (13) arranged on the mounting frame (14), the pair of driven rollers (13) are arranged below the pair of driving rollers (12), and the driving motor (11) is connected to one of the driving rollers (12) for driving the driving roller (12) to rotate.
10. The lamination device (100) according to any one of claims 1 to 6, characterized in that The guiding roller (21) is provided with a negative pressure suction port.