Stacking unit and stacking machine

Abstract

Disclosed in the present application are a stacking unit and a stacking machine. The stacking unit comprises: a base; a sheet-taking manipulator, which is mounted on the base and comprises a first driving mechanism and a sheet-taking mechanism, wherein the first driving mechanism drives the sheet-taking mechanism to reciprocate in a first direction; and a follower assembly, which comprises a motion guide member mounted on the base and a follower member, which is mounted on the sheet-taking mechanism and is in transmission fit with the motion guide member, wherein the follower member is configured to rotate on its axis when same moves in the first direction with the sheet-taking mechanism relative to the motion guide member, and to then drive the sheet-taking mechanism by means of the rotation on its axis to rotate. In the technical solution of the present application, by means of a power source, an electrode-sheet suction plate on the sheet-taking mechanism can be driven to rotate while the electrode-sheet suction plate reciprocates, thereby realizing stacking of electrode sheets, and thus costs are reduced.

Description

Lamination unit and lamination machine

[0001] This application is based on and claims priority to the Chinese patent application with application number 202311070240.4 and application date August 23, 2023. The entire contents of the application are hereby introduced as a whole into this application. Technical Field

[0002] The present application relates to the technical field of battery lamination, and in particular to a lamination unit and a lamination machine. Background Art

[0003] In the prior art, lamination robots must transfer the pole pieces to a lamination table or a deflection correction table during lamination, and simultaneously rotate the pole pieces 90 degrees. This typically requires two power mechanisms: one for translating the pole pieces from the hopper / correction table to the lamination table, and another for rotating them 90 degrees. This results in a complex structure and high cost for lamination robots. Application Contents

[0004] The embodiment of the present application provides a lamination unit and a lamination machine, which can drive the electrode suction cup on the electrode picking mechanism to rotate while reciprocating through a set of power sources, thereby achieving the lamination of battery electrodes and reducing costs.

[0005] In the first aspect, an embodiment of the present application provides a stacking unit, which includes: a base; a sheet picking robot, which is installed on the base, and the sheet picking robot includes a first driving mechanism and a sheet picking mechanism, and the first driving mechanism drives the sheet picking mechanism to reciprocate along a first direction; a follower assembly, including a guide installed on the base and a follower installed on the sheet picking mechanism and coordinated with the guide member for transmission, the follower being configured to rotate along the first direction following the sheet picking mechanism when it moves relative to the guide member, and drive the sheet picking mechanism to rotate by rotating.

[0006] Optionally, the film picking mechanism includes a second driving mechanism, a suction cup bracket and a pole piece suction cup, the second driving mechanism is connected to the suction cup bracket, and the pole piece suction cup rotates in cooperation with the suction cup bracket; when the second driving mechanism drives the suction cup bracket to drive the pole piece suction cup to move along the second direction, the pole piece suction cup slides relative to the follower along the second direction, and the follower can drive the pole piece suction cup to rotate around the second direction by self-rotation when the pole piece suction cup slides along the second direction.

[0007] Optionally, the lamination unit further includes a first transmission assembly, which is arranged on the suction cup bracket, and the first transmission assembly includes a driving member and a driven member, the driven member is coaxially connected to the driving member through a first shaft, the pole piece suction cup is coaxially connected to the driven member through a second shaft, and the driving member and the driven member are connected through a transmission member.

[0008] Optionally, the active member and the driven member are synchronous wheels, and the transmission member is a synchronous belt.

[0009] Optionally, a linear bearing is provided on the suction cup bracket, the active member is coaxially sleeved on the linear bearing, the first shaft member passes through the linear bearing, the upper end of the first shaft member is connected to the first driving mechanism through a fixed seat, and the follower member is coaxially arranged at the lower end of the first shaft member; wherein the linear bearing is a spline linear bearing, and the first shaft member is a spline shaft.

[0010] Optionally, the suction cup bracket is slidably mounted on the first driving mechanism along the second direction through a slide rail assembly.

[0011] Optionally, the lamination unit further includes a second transmission assembly, and the second driving mechanism includes a servo motor and a screw assembly. The servo motor and the screw assembly are arranged parallel to each other along the second direction and are connected through the second transmission assembly.

[0012] Optionally, the second transmission assembly is a synchronous belt assembly.

[0013] Optionally, the guide member has a first tooth structure, the follower member has a second tooth structure, and the first tooth structure and the second tooth structure are engaged with each other.

[0014] In a second aspect, an embodiment of the present application provides a laminating machine, which includes a laminating unit according to any of the aforementioned embodiments of the first aspect of the present application.

[0015] The stacking unit of the technical solution of the present application drives the reciprocating motion of the sheet-taking mechanism and the guide member of the follower assembly and the follower member that cooperates with the guide member through the first driving mechanism, so that the follower member can rotate when it moves relative to the guide member along the first direction, and the sheet-taking mechanism is driven to rotate by self-rotation, thereby realizing the stacking by driving the pole piece to perform translational and rotational motion through a power source. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] FIG1 is a schematic structural diagram of an embodiment of a lamination unit of the present application;

[0018] FIG2 is a front view of an embodiment of a lamination unit of the present application;

[0019] FIG3 is a side view of an embodiment of a lamination unit of the present application;

[0020] FIG4 is a top view of an embodiment of a lamination unit of the present application.

[0021] Description of Figure Numbers:

[0022] 100-stacking unit; 110-base; 120-film-picking robot; 121-first driving mechanism; 122-second driving mechanism; 1221-servo motor; 1222-screw assembly; 123-suction cup bracket; 1231-spline linear bearing; 124-pole piece suction cup; 130-follow-up assembly; 131-guide member; 132-follow-up member; 140-first transmission assembly; 141-driving member; 142-driven member; 143-first shaft member; 144-second shaft member; 145-transmission member; 150-fixed seat; 151-first fixing part; 152-second fixing part; 160-slide rail assembly; 170-second transmission assembly; 180-fixed platform; X-first direction; Y-second direction.

[0023] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0025] The embodiment of the present application provides a lamination unit and a lamination machine, which can drive the electrode suction cup on the electrode picking mechanism to rotate 90 degrees while reciprocating through a set of power sources, thereby achieving the lamination of battery electrodes and reducing costs.

[0026] The lamination unit of an embodiment of the present application is shown in Figures 1 to 4. The lamination unit 100 includes a base 110, a film-picking robot 120 and a follower assembly 130. The film-picking robot 120 is installed on the base 110. The film-picking robot 120 includes a first driving mechanism 121 and a film-picking mechanism. The first driving mechanism 121 drives the film-picking mechanism to reciprocate along the first direction X; the follower assembly 130 includes a guide member 131 installed on the base 110 and a follower member 132 installed on the film-picking mechanism and coordinated with the guide member 131. The follower member 132 is configured to rotate along the first direction X when following the film-picking mechanism to move relative to the guide member 131, and drives the film-picking mechanism to rotate by rotating.

[0027] When the first driving mechanism 121 drives the film taking mechanism to reciprocate along the first direction X, the follower 132 installed on the film taking mechanism follows the film taking mechanism to reciprocate relative to the guide member 131, and at the same time the follower 132 rotates itself, and the rotation of the film taking mechanism is driven by the rotation of the follower 132.

[0028] Optionally, the film removal mechanism includes a second drive mechanism 122, a suction cup bracket 123, and a pole piece suction cup 124. The second drive mechanism 122 is connected to the suction cup bracket 123, and the pole piece suction cup 124 rotates in conjunction with the suction cup bracket 123. When the second drive mechanism 122 drives the suction cup bracket 123 to move the pole piece suction cup 124 along the second direction Y, the pole piece suction cup 124 slides relative to the follower 132 along the second direction Y. When the pole piece suction cup 124 slides along the second direction Y, the follower 132 can drive the pole piece suction cup 124 to rotate around the second direction Y by rotating.

[0029] Optionally, the lamination unit 100 further includes a first transmission assembly 140, which is disposed on the suction cup bracket 123. The first transmission assembly 140 includes a driving member 141 and a driven member 142. The driven member 132 is coaxially connected to the driving member 141 through a first shaft 143. The pole piece suction cup 124 is coaxially connected to the driven member 142 through a second shaft 144. The driving member 141 and the driven member 142 are connected through a transmission member 145.

[0030] Optionally, the active member 141 and the driven member 142 are synchronous wheels, and the transmission member 145 is a synchronous belt.

[0031] Optionally, as shown in FIG3 , the first shaft 143 is a spline shaft, and the corresponding linear bearing is a spline linear bearing 1231. A linear bearing, namely, a spline linear bearing 1231, is provided on the suction cup bracket 123. The driving member 141 is coaxially sleeved on the spline linear bearing 1231. The first shaft 143 passes through the spline linear bearing 1231. The upper end of the first shaft 143 is connected to the first driving mechanism 121 via a fixed seat 150. The follower 132 is coaxially provided at the lower end of the first shaft 143.

[0032] Optionally, the fixing seat 150 includes a first fixing portion 151 and a second fixing portion 152. Both ends of the spline shaft are rotatably connected to the first fixing portion 151 and the second fixing portion 152 respectively, and the follower 132 is sleeved on one end of the spline shaft close to the second fixing portion 152, that is, the lower end of the first shaft 143.

[0033] Optionally, as shown in FIG. 2 , the suction cup bracket 123 is slidably mounted on the first driving mechanism 121 along the second direction Y through a slide rail assembly 160 .

[0034] Optionally, as shown in Figure 2, the lamination unit 100 also includes a second transmission assembly 170, and the second drive mechanism 122 includes a servo motor 1221 and a screw assembly 1222. The servo motor 1221 and the screw assembly 1222 are arranged parallel to each other along the second direction Y and are connected through the second transmission assembly 170.

[0035] Furthermore, as shown in FIG. 1 and FIG. 2 , the second transmission assembly 170 , the slide rail assembly 160 and the film taking mechanism are installed on a side of the fixed platform 180 away from the base 110 .

[0036] Optionally, the second transmission assembly 170 is a synchronous belt assembly. The servo motor 1221 is connected to the screw assembly 1222 via the synchronous belt assembly. The servo motor 1221 drives the screw assembly 1222 to drive the suction cup bracket 123 to reciprocate along the second direction Y.

[0037] Optionally, the guide member 131 has a first tooth structure, the follower member 132 has a second tooth structure, and the first tooth structure and the second tooth structure are engaged with each other.

[0038] Optionally, the guide member 131 is a rack, and the follower member 132 is a synchronous gear. When the first drive mechanism 121 drives the film-taking mechanism to reciprocate in the first direction X, the synchronous gear, which is in transmission connection with the film-taking mechanism, is driven by the film-taking mechanism and, in conjunction with the rack, reciprocates in the first direction X and rotates. At this time, the pole piece suction cup 124, which is in transmission connection with the synchronous gear, is driven by the synchronous gear and rotates relative to the suction cup bracket 123, so that the pole piece suction cup 124 can rotate in conjunction with the reciprocating motion of the film-taking robot 120. The pole piece suction cup 124 moves from the pole piece suction area to the lamination area along the first direction X and rotates 90 degrees at the same time, bringing the sucked pole piece to the lamination position for lamination.

[0039] After the pole piece suction cup 124 sucks the pole piece from the pole piece suction area, the second driving mechanism 122 drives the pole piece bracket to rise along the second direction Y, and the pole piece bracket drives the pole piece suction cup 124 to move along the second direction Y. In the process of the first driving mechanism 121 driving the film taking mechanism to move from the pole piece suction area to the lamination area along the first direction X, the pole piece suction cup 124 is driven to rotate by the follower 132. After reaching the lamination area, the pole piece suction cup 124 rotates 90 degrees to the lamination position. The second driving mechanism 122 drives the pole piece bracket to drive the pole piece suction cup 124 to descend along the second direction Y to complete the lamination.

[0040] After lamination is completed, the second driving mechanism 122 drives the electrode support to rise, and the first driving mechanism 121 drives the film taking mechanism to return to the electrode suction area along the first direction X to restart lamination.

[0041] The lamination unit 100 of the technical solution of the present application drives the reciprocating motion of the film-taking mechanism and the guide 131 of the follower assembly 130 and the follower 132 that cooperates with the guide 131 through the first driving mechanism 121, so that the follower 132 can rotate when it moves relative to the guide 131 along the first direction X, and the film-taking mechanism is driven to rotate by self-rotation, thereby achieving the lamination by driving the pole piece to perform translational and rotational motion through a power source.

[0042] The present application also proposes a stacking machine, which includes a stacking unit 100 of any of the above-mentioned embodiments. The stacking unit 100 includes a base 110, a sheet-picking robot 120 and a follower assembly 130. The sheet-picking robot 120 is installed on the base 110. The sheet-picking robot 120 includes a first driving mechanism 121 and a sheet-picking mechanism. The first driving mechanism 121 drives the sheet-picking mechanism to reciprocate along a first direction X; the follower assembly 130 includes a guide member 131 installed on the base 110 and a follower member 132 installed on the sheet-picking mechanism and coordinated with the guide member 131. The follower member 132 is configured to rotate along the first direction X when following the sheet-picking mechanism to move relative to the guide member 131, and drives the sheet-picking mechanism to rotate by rotating.

[0043] The laminating unit 100 of the laminating machine of the present invention drives the reciprocating motion of the sheet-taking mechanism and the guide 131 of the follower assembly 130 and the follower 132 in transmission cooperation with the guide 131 through the first drive mechanism 121, so that the follower 132 can rotate when moving relative to the guide 131 along the first direction X. The sheet-taking mechanism is driven to rotate by the self-rotation, thereby achieving the goal of laminating by driving the pole piece to perform translational and rotational motion by a single power source. The pole piece suction cup 124 is driven by a single power source to achieve a combined motion of movement along the first direction X and rotation, thereby reducing the cost of the laminating machine.

[0044] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0045] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0046] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. A lamination unit, characterized in that: include: Pedestal; A film taking robot, the film taking robot is installed on the base, the film taking robot comprises a first driving mechanism and a film taking mechanism, the first driving mechanism drives the film taking mechanism to reciprocate along a first direction; The follower assembly includes a guide member installed on the base and a follower member installed on the film-taking mechanism and in transmission cooperation with the guide member. The follower member is configured to rotate along the first direction following the film-taking mechanism when it moves relative to the guide member, and drives the film-taking mechanism to rotate through rotation.

2. The lamination unit according to claim 1, characterized in that The film picking mechanism includes a second driving mechanism, a suction cup bracket and a pole piece suction cup, the second driving mechanism is connected to the suction cup bracket, and the pole piece suction cup rotates in cooperation with the suction cup bracket; when the second driving mechanism drives the suction cup bracket to drive the pole piece suction cup to move along the second direction, the pole piece suction cup slides relative to the follower along the second direction, and when the pole piece suction cup slides along the second direction, the follower drives the pole piece suction cup to rotate in the second direction by self-rotation.

3. The lamination unit according to claim 2, characterized in that: The lamination unit also includes a first transmission assembly, which is arranged on the suction cup bracket. The first transmission assembly includes an active member and a driven member. The driven member is coaxially connected to the active member through a first shaft, the pole piece suction cup is coaxially connected to the driven member through a second shaft, and the active member and the driven member are connected through a transmission member.

4. The lamination unit according to claim 3, characterized in that: The active member and the driven member are synchronous wheels, and the transmission member is a synchronous belt.

5. The lamination unit according to claim 3, characterized in that: The suction cup bracket is provided with a linear bearing, the active member is coaxially sleeved on the linear bearing, the first shaft member passes through the linear bearing, the upper end of the first shaft member is connected to the first driving mechanism through a fixed seat, and the follower is coaxially arranged at the lower end of the first shaft member; Wherein, the linear bearing is a spline linear bearing, and the first shaft component is a spline shaft.

6. The lamination unit according to claim 2, characterized in that: The suction cup bracket is slidably mounted on the first driving mechanism along the second direction through a slide rail assembly.

7. The lamination unit according to claim 2, characterized in that: The lamination unit further includes a second transmission assembly. The second driving mechanism includes a servo motor and a screw assembly. The servo motor and the screw assembly are arranged in parallel along the second direction and are transmission-connected via the second transmission assembly.

8. The lamination unit according to claim 7, characterized in that The second transmission assembly is a synchronous belt assembly.

9. The lamination unit according to any one of claims 1 to 8, characterized in that: The guide member has a first tooth structure, and the follower member has a second tooth structure, and the first tooth structure and the second tooth structure are meshed with each other.

10. A laminating machine, characterized in that: The laminating machine comprises a laminating unit as claimed in any one of claims 1 to 9.

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