Rolling device

Abstract

This application discloses a rolling device comprising a drive roller mechanism, a guide mechanism, a receiving table, and an oscillating mechanism. The drive roller mechanism is used to guide electrode plates downwards. The guide mechanism is located below the drive roller mechanism and comprises two guide rollers arranged opposite each other. Each guide roller has an arc-shaped guide face and a notch arranged axially along the roller. The arc-shaped guide face bears against the electrode plates when the guide roller is in a guiding position, and the notch moves the guide roller away from the electrode plates when the guide roller is in a idling position. The guiding positions of the two guide rollers are arranged alternately.The receiving table is positioned beneath the guide mechanism and is used to receive the electrode plates, which are guided by the mechanism, so that the electrode plates are stacked one after the other. The oscillating mechanism is used to mount the drive roller mechanism, causing the drive roller mechanism to oscillate alternately between the two guide rollers, periodically transporting the electrode plates to each guide roller.

Description

Title of the invention: Rolling device technical field

[0001] The present application relates to the field of battery technology, in particular to a rolling device.

[0002] In a lithium battery manufacturing process, the battery cell manufacturing process generally includes a winding process and a laminating process. In the laminating process, it is necessary to stack the electrode plates in sheet form one on top of the other, for example, drop laminating and Z-shaped laminating. In Z-shaped laminating, a manipulator arm is used to grasp and stack the electrode plates, and a response time is required for the manipulator arm in the loading, unloading, and handling process, resulting in low efficiency; while drop laminating causes the electrode plates to descend under the action of air pressure, resulting in high efficiency, the non-fixed direction of the airflow during blowing often leads to misalignment of the stacked cells and poor stacking quality.

[0003] SUBJECT OF THE INVENTION

[0004] According to one or more embodiments of this application, a rolling device comprises a drive roller mechanism, a guide mechanism, a receiving table, and an oscillating mechanism. The drive roller mechanism is used to guide electrode plates to move vertically downwards. The guide mechanism is disposed below the drive roller mechanism and comprises two guide rollers arranged opposite each other, each guide roller having an arc-shaped guide face and a notch disposed in an axial direction of the guide roller.The arc guide face is used to bear against the electrode plates when the guide roller is in the guiding position, and the notch is used to move the guide roller away from the electrode plates when the guide roller is in the idle position, the guiding positions of the two guide rollers being arranged alternately. The receiving table is located under the guiding mechanism and is used to receive the electrode plates guided by the guiding mechanism, so that the electrode plates are stacked one after the other. The oscillating mechanism is used to mount the drive roller mechanism on it, in order to drive the drive roller mechanism to oscillate alternately between the two guide rollers to periodically transport the electrode plates to each guide roller.

[0005] The above rolling device has the following technical effects or advantages:

[0006] The drive roller mechanism transports the electrode plates, allowing them to move vertically downwards. Then, the arc-shaped guide faces of the two guide rollers press against the electrode plates and transport them one after the other, thus achieving sequential transport to the receiving table. Simultaneously, the arrangement of the oscillating mechanism causes the drive roller mechanism to periodically approach the guide rollers, transporting the electrode plates periodically to each guide roller. This allows each guide roller to guide and transport the electrode plates one after the other, thereby achieving sequential stacking.Since the entire rolling process can be carried out continuously, higher rolling efficiency will be provided; at the same time, the sequential guidance method by the two guide rollers ensures rolling accuracy. DESCRIPTION OF THE FIGURES

[0007] [Fig.1] is a three-dimensional diagram of the rolling device according to the embodiments of the present application;

[0008] [Fig.2] is a structural diagram of the rolling device of the [Fig.1];

[0009] [Fig.3] is a structural diagram of the lifting drive device and the table of reception according to the methods of implementation of this request.

[0010] Reference numerals in the figures: 100-Laminating device; 10-Drive roller mechanism; 11-Drive motor; 12-Drive roller; 13-Driven roller; 14-Mounting frame; 20-Guide mechanism; 21-Guide roller; 211-Arced guide face; 212-Notch; 213-Avoidance hole; 215-Center roller; 216-Guide frame; 30-Receiving table; 40-Oscillating mechanism; 50-Spiral positioning mechanism; 51-Spiral positioning element; 511-First drive element; 512-Mounting rod; 513-Spiral head; 514-Mounting groove; 60-Lifting drive device; 61-Mounting table; 62-Linear drive module; 200-Electrode plate. DETAILED DESCRIPTION OF THE INVENTION

[0011] The technical content, structural features, objects, and effects to be achieved in this application are described in detail with reference to the accompanying figures. More specifically, the terms used in the embodiments of this application are used only to describe the specific embodiments, rather than to limit the scope of this application.

[0012] The present application will be described in more detail below with reference to the attached figures.

[0013] With reference to Figures 1 to 3, a rolling device 100 supplied in the embodiments of this application comprises a drive roller mechanism 10, a guide mechanism 20, a receiving table 30 and an oscillating mechanism 40.

[0014] As shown in Figures 1 and 2, the drive roller mechanism 10 is used to guide electrode plates 200 to move vertically downwards. The guide mechanism 20 is disposed below the drive roller mechanism 10 and comprises two guide rollers 21 arranged opposite each other, and each guide roller 21 has an arc-shaped guide face 211 and a notch 212 disposed axially along the guide roller 21. The arc-shaped guide face 211 is used to bear against the electrode plates 200 when the guide roller 21 is in a guiding attitude, and the notch 212 is used to move the guide roller 21 away from the electrode plates 200 when the guide roller 21 is in a idling attitude, the guiding attitudes of the two guide rollers 21 being arranged alternately.The receiving table 30 is positioned under the guide mechanism 20 and is used to receive the electrode plates 200 guided by the guide mechanism 20, so that the electrode plates 200 are stacked one after the other. The oscillating mechanism 40 is used to mount the drive roller mechanism 10 on it, in order to drive the drive roller mechanism 10 to oscillate alternately between the two guide rollers 21 to periodically transport the electrode plates 200 towards each guide roller 21.

[0015] The rolling device 100 above can transport the electrode plates 200 using the drive roller mechanism 10, so that the electrode plates 200 can move vertically downwards.Once the electrode plates 200 are transported, the arc guide face 211 of the two guide rollers 21 rests against the electrode plates 200 and transports them one after the other, thus achieving the sequential transport effect to the receiving table 30. In parallel, the arrangement of the oscillating mechanism 40 allows the drive roller mechanism 10 to periodically approach each guide roller 21 respectively, in order to periodically transport the electrode plates 200 towards each guide roller, so that each guide roller 21 can guide and transport the electrode plates 200 one after the other, thus achieving the sequential stacking effect. Since the entire rolling process can be carried out continuously, a higher rolling efficiency will be achieved. supplied; in parallel, the sequential guidance method by the two guide rollers 21 guarantees the accuracy of the rolling.

[0016] It should be noted that the guiding attitude mentioned in this embodiment refers to attitudes in which the guide roller 21 rests against the electrode plates 200 to guide the movement of the electrode plates 200 in a specified direction, and the idle attitude refers to the state in which the guide roller 21 moves away from the electrode plates and is not in contact with the electrode plates.

[0017] Furthermore, with reference to Figures 1 and 2, in order to improve the accuracy of the stacking position of the electrode plates 200 on the receiving table 30, the rolling device 100 further includes a spiral positioning mechanism 50. The spiral positioning mechanism 50 is disposed between the guiding mechanism 20 and the receiving table 30, and is used to spirally receive the electrode plates 200 guided by the guiding mechanism 20 and transport the electrode plates 200 to the receiving table 30.In this way, when the two guide rollers 21 guide the electrode plates 200 one after the other, the spiral positioning mechanism 50 can receive the electrode plates 200 one after the other, and under the action of the rotation of the spiral positioning mechanism 50, the electrode plates 200 are driven to rotate and fall one after the other to be received by the receiving table 30, which avoids the situation where the electrode plates 200 released from the guidance of the guide rollers 21 float, and thus improves the quality of the stacking of the electrode plates 200.

[0018] It will be understood that the spiral positioning mechanism 50 is provided inside, with a spiral groove 514 in which the electrode plates 200 are fitted, so that the electrode plates 200 can be received in limit mode of the end of stroke in the rotation process of the spiral positioning mechanism 50 and fall one after the other after being received.

[0019] More specifically, the spiral positioning mechanism 50 according to the present embodiment comprises two spiral positioning elements 51 arranged opposite each other, and the two spiral positioning elements 51 are respectively arranged accordingly on the outer side of the two guide rollers 21. Thus, the arrangement of the two spiral positioning elements 51 makes it possible to limit two opposite sides of the electrode plates 200, thereby further guaranteeing the accuracy of the stacking position of the electrode plates 200 on the receiving table 30. It will be understood that each spiral positioning element 51 is provided with a spiral groove 514 to limit the electrode plates 200.

[0020] More specifically, as shown in [Fig. 2], the spiral positioning element 51 comprises a first drive element 511, a mounting rod 512, and a spiral head 513. The mounting rod 512 is connected between the first drive element 511 and the spiral head 513. The first drive element 511 is used to drive the spiral head 513 to rotate, and the spiral head 513 is provided with a spiral groove 514. Thus, under the drive of the first drive element 511, the spiral head 513 performs a spiral movement to position and receive the electrode plates 200 and remove them by spiral rotation.

[0021] In which, the mounting rod 512 according to the present embodiment is located on the side of the guide roller 21 and extends in the vertical direction, i.e. the spiral head 513 also extends in the vertical direction, so that the electrode plates 200 can fall one after the other in free fall mode.

[0022] It will be understood that, given that the guide roller 21 has an arc-shaped guide face 211, i.e., that the radius of the guide roller 21 at the position where the arc-shaped guide face 211 is located is relatively large, in order to correspond to the configuration of the spiral positioning element 51, and the guide roller 21 can also be provided with an avoidance orifice 213 to avoid the mounting rod 512. Thus, when the arc-shaped guide face 211 rotates to the position of the mounting rod 512, the existence of the avoidance orifice 213 allows the guide roller 21 to avoid the mounting rod 512, thereby avoiding movement interference with the mounting rod 512.In other embodiments, the mounting rod 512 can also be arranged under the spiral head 513, i.e. under the guide roller 21, which avoids movement interference with the guide roller 21 and avoids the arrangement of the notch 212 on the guide roller 21, thus facilitating the formation of the guide roller 21. Or in another embodiment, a larger radius can be defined for the spiral head 513, so that the mounting rod 512 can move away from the guide roller 21 and the arrangement of the avoidance orifice 213 on the guide roller 21 can also be avoided.

[0023] Furthermore, in order to form the arc-shaped guide face 211 and the avoidance orifice 213, the guide roller 21 comprises a central roller 215 and a plurality of guide frames 216 arranged on the central roller 215. The plurality of guide frames 216 are arranged at intervals along the axial direction of the central roller 215. Each guide frame 216 has an arc-shaped guide face 211, and an avoidance orifice 213 is formed between two adjacent guide frames 216. By arranging a plurality of guide frames 216 at intervals along the axial direction of the central roller 215, an integral arc-shaped guide face structure is formed on the central roller 215, and an orifice The avoidance 213 is formed on such an arc-shaped guide face structure, thus reducing the weight of the entire guide roller.

[0024] As shown in [Fig. 2], a range of the central angle of the arc guide face 211 according to the present embodiment is between 60° and 210°, i.e., a range of the central angle corresponding to the notch 212 is between 150° and 300°. By defining the central angle of the arc guide face 211, the arc guide face 211, when rotating, can press against the electrode plates 200 and guide them downwards, which prevents a central angle of the arc guide face 211 that is too large from making the separation of the electrode plates 200 from the guide roller 21 difficult, and a central angle of the arc guide face 211 that is too small from making the guidance of the electrode plates 200 ineffective.

[0025] In which, the central angle of the arc guide face 211 can be defined at 60°, 120°, 150°, 180°, 210° or other degrees, which shall not be limited in the present application.

[0026] Preferably, the central angle of the arc guide face 211 according to the present embodiment is 180°, that is to say it is defined as a semicircle, and the notch 212 also has a semicircle shape.

[0027] More specifically, as shown in [Fig.2], for ease of description, the two guide rollers 21 are defined respectively as guide roller A and guide roller B. During the operation of the device, the drive roller mechanism 10 first moves to approach guide roller A and transports the electrode plates 200 towards guide roller A. When guide roller A rotates in the direction of arrow a in [Fig.2], it produces a guiding effect on the electrode plates 200; at this moment, the notch 212 of guide roller B is oriented towards the electrode plates 200 and rotates in the direction indicated by arrow b.When the arc-guided face 211 of the guide roller A gradually moves away from the electrode plates 200, at that moment, the drive roller mechanism 10 gradually approaches the guide roller B under the drive of the oscillating mechanism 40, and the arc-guided face 211 of the guide roller B gradually comes into contact with the electrode plates 200. That is to say, the two guide rollers 21 rotate in opposite directions, one rotating clockwise and the other counterclockwise; thus, in one cycle, the two guide rollers 21 guide the electrode plates 200 one after the other.

[0028] In another embodiment, the guiding mechanism 20 may further comprise two second drive elements (not shown in the figures), and each second drive element is connected to a guide roller 21 for drive the guide roller 21 to rotate. In addition, to ensure that the electrode plates 200 can move by pressing against the surface of the guide roller 21, the guide roller 21 can also be provided with a negative pressure suction orifice (not shown in the figures), thus, when each guide roller 21 guides the electrode plates 200, the electrode plates 200 can be drawn onto the surface of the guide frame 216 by generating a negative pressure on the guide roller 21, i.e., by generating a negative pressure on the guide frame 216, so that the electrode plates 200 can be driven under the guidance of the movement of the guide frame 216 to move along a predefined path, preventing the tilting of the electrode plates 200.

[0029] As shown in Figures 1 and 2, the drive roller mechanism 10 according to the present embodiment comprises a mounting frame 14 and a drive motor 11 disposed on the mounting frame 14, a pair of drive rollers 12, and a pair of driven rollers 13. The driven rollers 13 are disposed below the drive rollers 12, and the drive motor 11 is connected to one of the drive rollers 12 to drive the drive rollers 12 to rotate. Thus, the drive rollers 12 are driven by the drive motor 11 to rotate, so that the electrode plates 200 are driven to move downwards, and simultaneously, the driven rollers 13 again limit the movement of the electrode plates 200 to ensure the upward movement of the electrode plates 200 in the vertical direction.

[0030] As shown in [Fig. 3], in one embodiment of the present application, to facilitate the continuous progression of the rolling process, the rolling device 100 further includes a lifting drive device 60 which is used to install the receiving table 30 onto it and to drive the receiving table 30 up or down. That is, once the receiving of the electrode plates 200 begins, the receiving table 30 can approach the spiral positioning mechanism 50 as closely as possible. As the electrode plates 200 fall one after another, the stacking height of the electrode plates 200 gradually increases, and with each fall of an electrode plate 200, the lifting drive device 60 drives the receiving table 30 downwards by a distance equal to the thickness of the electrode plate 200.With the gradual descent of the receiving table 30, until the electrode plates 200 are stacked to a required rolling height for a cell, the manipulator arm removes these electrode plates 200, and the lifting drive device 60 again drives the receiving table 30 to move upwards for a process of receiving the electrode plates 200 of a subsequent cell, this. which allows for continuity in all rolling processes and ensures efficient lamination progress.

[0031] Wherein the lifting drive device 60 may include a mounting table 61 and a linear drive module 62 disposed on the mounting table 61. The linear drive module 62 is disposed in a vertical direction and is connected to the receiving table 30. Thus, under the drive of the linear drive module 62, the receiving table 30 can move upwards or downwards in the vertical direction.

[0032] For the rolling device 100 above, the electrode plates 200 are transported by the drive rollers 12 and the driven rollers 13 and periodically guided one after the other by the two guide rollers 21. They are then positioned and transported downwards by the spiral positioning mechanism 50, so that the electrode plates 200 can fall onto the receiving table 30 one after the other in the horizontal direction. The receiving table 30 is driven to rise or fall by the lifting drive device 60, so that the receiving table 30 can receive the electrode plates 200 required for one cell in each cycle, which is convenient for stacking a cell.

[0033] Although the content of this application has been described in combination with the embodiments considered to be the most practical and preferred, it should be understood that the content of this application is not limited to the disclosed embodiments, but is intended to cover various configurations realized without departing from the scope of the broadest interpretation of the annexed claims.

Claims

Demands

1. Rolling device (100), characterized in that it comprises: - a drive roller mechanism (10), which is used to guide electrode plates (200) to move vertically downwards;- a drive roller mechanism (20), which is disposed under the drive roller mechanism (10) and comprises two guide rollers (21) arranged opposite each other, each guide roller (21) having an arc-shaped guide face (211) and a notch (212) disposed in an axial direction of the guide roller (21), the arc-shaped guide face (211) being used to bear against the electrode plates (200) when the guide roller (21) is in a guiding attitude, and the notch (212) being used to move the guide roller (21) away from the electrode plates (200) when the guide roller (21) is in an idle attitude, and the guiding attitudes of the two guide rollers (21) being disposed alternately;- a receiving table (30), which is arranged under the guiding mechanism (20) and is used to receive the electrode plates (200) guided by the guiding mechanism (20), so that the electrode plates (200) are stacked one after the other; and - an oscillating mechanism (40), which is used to install the drive roller mechanism (10) on it, in order to drive the drive roller mechanism (10) to oscillate alternately between the two guide rollers (21) to transport the electrode plates (200) periodically towards each guide roller (21).

2. Rolling device (100) according to claim 1, characterized in that, the rolling device (100) further comprises a spiral positioning mechanism (50), the spiral positioning mechanism (50) is disposed between the guide mechanism (20) and the receiving table (30), and is used to spirally receive the electrode plates (200) guided by the guide mechanism (20) and transport the electrode plates (200) to the receiving table (30).

3. Rolling device (100) according to claim 2, characterized in that the spiral positioning mechanism (50) comprises two spiral positioning elements (51) arranged opposite each other, and the two spiral positioning elements (51) are respectively arranged accordingly under the two guide rollers (21).

4. Rolling device (100) according to claim 3, characterized in that the two spiral positioning elements (51) comprise a first drive element (511), a mounting rod (512) and a spiral head (513), the mounting rod (512) is connected between the first drive element (511) and the spiral head (513), the first drive element (511) is used to drive the spiral head (513) to rotate and the spiral head (513) is provided with a spiral groove (514).

5. Rolling device (100) according to claim 4, characterized in that the mounting rod (512) is disposed on the side of the guide roller (21), and the guide roller (21) is provided with an avoidance orifice (213) to avoid the mounting rod (512).

6. Rolling device (100) according to claim 5, characterized in that, the guide roller (21) comprises a central roller (215) and a plurality of guide frames (216) arranged on the central roller (215), the plurality of guide frames (216) are arranged at intervals in an axial direction of the central roller (215), each guide frame (216) has an arc-shaped guide face (211) and an avoidance orifice (213) is formed between two adjacent guide frames (216).

7. Rolling device (100) according to any one of claims 1 to 6, characterized in that a range of a central angle of the arc guide face (211) is between 60° and 210°.

8. Rolling device (100) according to any one of claims 1 to 6, characterized in that the rolling device (100) further comprises a lifting drive device (60) which is used to install the receiving table (30) on it and to drive the receiving table (30) up or down.

9. Rolling device (100) according to any one of claims 1 to 6, characterized in that the drive roller mechanism (10) comprises a mounting frame (14) and a drive motor (11) disposed on the mounting frame (14), a pair of drive rollers (12) and a pair of driven rollers

10. (13), the pair of driven rollers (13) are arranged under the pair of driving rollers (12), and the drive motor (11) is connected to one of the driving rollers (12) to drive the driving rollers (12) to rotate. Rolling device (100) according to any one of claims 1 to 6, characterized in that the guide roller (21) is provided with a negative pressure suction orifice.

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