Material pushing device

Abstract

The utility model discloses a material pushing device, and relates to the technical field of material carrying equipment, the material pushing device comprises a first slide rail arranged along the material stacking direction, a support slidably mounted on the first slide rail through a first slide block, and a translation driving part for driving the support to move along the first slide rail; a clamping driving part and a lifting driving part are installed on the support, a pair of clamping plates is arranged at the driving end of the clamping driving part, a push plate is arranged at the driving end of the lifting driving part, a clamping interval is formed between the pair of clamping plates, and the clamping driving part is configured to drive the pair of clamping plates to clamp or loosen at least two materials arranged in the direction perpendicular to the material stacking direction. The lifting driving piece is configured to drive the push plate to move to the position above the side of the clamping interval or move to one side of the clamping interval to abut against and push at least two materials clamped by the pair of clamping plates. By means of the material pushing device, the situation that due to deviation of the clamping angle or force of the clamping plates, the materials protrude towards the side perpendicular to the clamping direction can be avoided.

Description

Technical Field

[0001] This application relates to the technical field of material handling equipment, and particularly to a material pushing device. Background Art

[0002] Currently, in many production processes, it is necessary to stack materials. For example, in the production process of battery cell modules, it is necessary to stack battery cells one by one on a tooling and between two end plates. Currently, the stacking operation of battery cells is mainly carried out manually. Of course, there are also some that use a material stacking device to stack battery cells. However, the existing material stacking device mainly clamps the battery cells from both sides by a pair of clamping plates, and then drives the clamping plates to move horizontally through a translation mechanism to stack the battery cells one by one horizontally.

[0003] This kind of material stacking device is only suitable for stacking one battery cell at a time. When the material stacking device clamps two or more battery cells simultaneously along its clamping direction, since there is no connection relationship between the battery cells, when the clamping angle or force of the clamping plates deviates, it is easy to cause the battery cells to protrude to one side perpendicular to the clamping direction, resulting in an "eight"-shaped gap between the two battery cells. Utility Model Content

[0004] This application aims to solve at least one of the technical problems existing in the prior art. For this reason, this application provides a material pushing device, which solves the problem that when the existing material stacking device clamps two or more battery cells simultaneously, it is easy to cause the battery cells to protrude to one side perpendicular to the clamping direction, resulting in an "eight"-shaped gap between the two battery cells.

[0005] The purpose of this application can be achieved through the following technical solutions:

[0006] This application provides a material pushing device, which includes a first slide rail arranged along the material stacking direction, a bracket slidably mounted on the first slide rail through a first slider, and a translation driving member for driving the bracket to move along the first slide rail. A clamping driving member and a lifting driving member are installed on the bracket. A pair of clamping plates are provided at the driving end of the clamping driving member, and a pushing plate is provided at the driving end of the lifting driving member. A clamping interval is formed between the pair of clamping plates. The clamping driving member is configured to drive the pair of clamping plates to move relatively closer or farther away along a direction perpendicular to the material stacking direction, so as to clamp or release at least two materials arranged along a direction perpendicular to the material stacking direction. The lifting driving member is configured to drive the pushing plate to rise or fall, so that the pushing plate moves to the upper side of the clamping interval or moves to one side of the clamping interval to abut against and push at least two materials clamped by the pair of clamping plates.

[0007] In this application, by providing a push plate, the push plate can abut against the materials (such as battery cells) clamped by the clamping plates, effectively avoiding the problem that when multiple materials are clamped by the clamping plates at the same time, the materials are prone to protrude to one side perpendicular to the clamping direction due to deviations in the clamping angle or force of the clamping plates, and improving the stability of clamping multiple materials by a pair of clamping plates. And by providing a lifting driving member, when the material pushing device moves along the first slide rail and exits the tooling, the lifting driving member can lift the push plate above the side of the clamping area to prevent the push plate from interfering with the end plate of the battery cell module on the tooling.

[0008] Optionally, the clamping driving member is arranged above the clamping area, and the clamping driving member includes two driving ends arranged at intervals along a direction perpendicular to the material stacking direction, and a pair of clamping plates are respectively installed on the two driving ends of the clamping driving member.

[0009] A specific design method of the clamping driving member is provided. By arranging the clamping driving member above the clamping area and respectively installing a pair of clamping plates on the two driving ends of the clamping driving member, when the material pushing device exits the tooling along the first slide rail, the end plate of the battery cell module passes under the clamping driving member, avoiding interference between the end plate of the battery cell module and the clamping driving member.

[0010] Optionally, a buffer cylinder is respectively arranged on the two driving ends of the clamping driving member, the clamping plate is installed on the driving end of the corresponding buffer cylinder, and the buffer cylinder is configured to contract after the friction force between the clamping plate and the material reaches a preset value.

[0011] By providing the buffer cylinder, when the clamped material is pushed in place and the clamping driving member continues to move forward, the buffer cylinder is stressed and contracts to offset the moving distance of the translation driving member relative to the clamping plate, avoiding excessive extrusion of the stacked materials by the clamped material due to the driving accuracy problem of the translation driving member.

[0012] Optionally, a mounting plate is respectively installed on the two driving ends of the clamping driving member, the fixed end of the buffer cylinder is installed on the mounting plate, a second slide rail parallel to the first slide rail is provided on the mounting plate, and the clamping plate is slidably installed on the second slide rail through a second slider.

[0013] The clamping plate is slidably installed on the second slide rail through the second slider to guide the movement of the clamping plate when the buffer cylinder contracts, improving the stability of the movement of the clamping plate.

[0014] Optionally, a first detection sensor is further arranged on the two driving ends of the clamping driving member, and the first detection sensor is configured to detect whether the end plate of the battery cell module is tilted during the movement of the bracket along the first slide rail.

[0015] Through the arrangement of the first detection sensor, the material pushing device can detect whether the end plate of the battery cell module located on the movement path is tilted through the first detection sensor during the movement.

[0016] Optionally, second detection sensors are further provided on two driving ends of the clamping driving member. The second detection sensors are configured to detect the stacked reference plate or the stacked materials in advance during the movement of the bracket along the first slide rail, so as to control the translation driving member to decelerate.

[0017] By providing the second detection sensors, when the clamped material moves to a set distance from the stacked materials, the translation driving member is controlled to decelerate, so that the material to be stacked slowly approaches the stacked materials, avoiding the situation that the material to be stacked has too large inertia and violently impacts the stacked materials.

[0018] Optionally, third detection sensors are further provided on two driving ends of the clamping driving member. In the direction of material stacking, the third detection sensors are located at a predetermined distance behind the second detection sensors. The third detection sensors are configured to cooperate with the second detection sensors to verify the moving distance of the translation driving member driving the bracket after the second detection sensors detect the stacked materials.

[0019] By providing the third detection sensors to cooperate with the second detection sensors to verify the driving stroke of the translation driving member after deceleration, so as to calibrate the clamping driving member in time according to the verification result.

[0020] Optionally, a contact plate is provided on the surface of the push plate in contact with the material. The contact plate is configured to be in contact with the material, and a buffer layer is provided on the side surface of the contact plate opposite to the material;

[0021] An elastic member and a position sensor are provided between the contact plate and the push plate. The elastic member is configured to elastically stretch under an external force to change the distance between the contact plate and the push plate, and the position sensor is configured to control the translation driving member to stop when detecting that the distance between the contact plate and the push plate reaches a preset value.

[0022] By providing the contact plate and providing the elastic member and the position sensor between the contact plate and the push plate, the position sensor can determine whether the clamped material is stacked in place, and then control the start and stop of the translation driving member.

[0023] Optionally, the translation driving member includes a rack arranged parallel to the first slide rail, a gear meshing with the rack, and a motor for driving the gear to rotate. The fixed end of the motor is fixedly installed on the bracket, and the gear is installed on the driving end of the motor.

[0024] A specific translation driving member is provided, which has a simple structure and is convenient to assemble.

[0025] Optionally, the material pushing device further includes an extrusion assembly, which is located below the bracket and near the starting end of the first slide rail. The extrusion assembly is configured to extrude the battery cell module. The extrusion assembly includes an extrusion block capable of abutting against the end plate of the battery cell module and an extrusion cylinder capable of pushing the extrusion block to reciprocate along the material stacking direction. The extrusion block is arranged at the driving end of the extrusion cylinder.

[0026] By providing the extrusion assembly, the material pushing device in the present application can simultaneously realize the functions of stacking and extruding the battery cells. Description of the Drawings

[0027] The present application will be further described below with reference to the accompanying drawings.

[0028] Figure 1 is a schematic diagram of the overall structure of the material pushing device in one embodiment of the present application;

[0029] Figure 2 is a schematic diagram of the structures of the lifting driving member, the clamping driving member, the clamping plate, the pushing plate, the buffer cylinder and each detection sensor in one embodiment of the present application;

[0030] Figure 3 is an exploded view of the pushing plate in one embodiment of the present application;

[0031] Figure 4 is a schematic diagram of the structure of the extrusion mechanism in one embodiment of the present application.

[0032] Description of the Reference Numerals:

[0033] 1. First slide rail; 2. Bracket; 3. Translation driving member; 31. Rack; 32. Gear; 33. Motor; 4. Clamping driving member; 5. Lifting driving member; 6. Clamping plate; 7. Pushing plate; 8. Buffer cylinder; 9. Mounting plate; 10. Mounting frame; 11. First detection sensor; 12. Second detection sensor; 13. Third detection sensor; 14. Contact plate; 15. Buffer layer; 16. Elastic member; 17. In-place sensor; 18. Extrusion assembly; 181. Extrusion cylinder; 182. Extrusion block; 100. Material pushing device. Detailed Embodiments

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0035] Please refer to Figure 1and Figure 2 As shown in Figure 2 , the present application provides a material pushing device 100, which can be applied in various scenarios as long as there is a stack of materials in the scenario, such as a stack of products or packages. As described below, the application of the material pushing device 100 of the present application in a battery cell module assembly device.

[0036] In some embodiments, the material pushing device 100 includes a first slide rail 1, a bracket 2, a translation driving member 3, a clamping driving member 4, a lifting driving member 5, a clamping plate 6, and a pushing plate 7. The first slide rail 1 is arranged along the material stacking direction, and two first slide rails 1 are arranged in parallel. The bottom of the bracket 2 is slidably mounted on the corresponding first slide rail 1 through two first sliders respectively to ensure the stability of the movement of the bracket 2. The driving end of the translation driving member 3 is connected to the bracket 2, and the translation driving member 3 is configured to drive the bracket 2 to move along the first slide rail 1. The clamping driving member 4 and the lifting driving member 5 are both mounted on the bracket 2. A pair of clamping plates 6 are arranged opposite to each other along a direction perpendicular to the material stacking direction, and a clamping interval is formed between the pair of clamping plates 6. The pair of clamping plates 6 are mounted on the driving end of the clamping driving member 4. The clamping driving member 4 can drive the pair of clamping plates 6 to approach or move away from each other along a direction perpendicular to the material stacking direction, so that the pair of clamping plates 6 can clamp or release at least two battery cells (materials) arranged along a direction perpendicular to the material stacking direction. The pushing plate 7 is arranged at the driving end of the lifting driving member 5, and the lifting driving member 5 can drive the pushing plate 7 to rise or fall, so that the pushing plate 7 can move to the upper side of the clamping interval to avoid other components; or move to one side of the clamping interval to abut against and push at least two battery cells clamped by the pair of clamping plates 6 to prevent the battery cells from protruding to one side perpendicular to the clamping direction due to deviation of the clamping angle or force of the clamping plate 6.

[0037] When stacking battery cells, an external feeding mechanism (not shown) first transports the battery cells to a tooling (a platform or device for assisting in assembling a battery cell module). The bracket 2 is translated to the placement position of the battery cell, so that the battery cell is located within the clamping range of a pair of clamping plates 6, and at least two battery cells are arranged along a direction perpendicular to the material stacking direction within the clamping range. Then, the clamping driving member 4 drives the pair of clamping plates 6 to approach each other to clamp the battery cells within the clamping range. After that, the lifting driving member 5 drives the push plate 7 to descend, so that the push plate 7 moves to one side of the clamping range and is located behind the battery cells within the clamping range. Of course, at this time, the push plate 7 can also be in contact with the battery cells. Finally, the translation driving member 3 drives the bracket 2 to move along the first slide rail 1, so that the battery cells within the clamping range move along the material stacking direction under the clamping of the pair of clamping plates 6 and the pushing of the push plate 7, and are horizontally stacked with the already stacked battery cells. During the process of the clamping plates 6 clamping and moving two battery cells, the push plate 7 pushes against the battery cells from the rear to provide back support for the battery cells when they move along the moving direction. In addition, when an "eight"-shaped gap is formed between the battery cells, after the battery cells clamped by the clamping plates 6 come into contact with the already stacked battery cells or end plates in front, the push plate 7 presses and corrects the two battery cells towards the stacked battery cells or end plates to ensure the stacking position of the battery cells.

[0038] Please refer to Figure 2 As shown, in some embodiments, the clamping driving member 4 is arranged above the clamping range, and the clamping driving member 4 includes two driving ends arranged at intervals along a direction perpendicular to the material stacking direction. A pair of clamping plates 6 are respectively installed on the two driving ends of the clamping driving member 4, and the two driving ends of the clamping driving member 4 drive the pair of clamping plates 6 to clamp the battery cells by approaching each other; the two driving ends of the clamping driving member 4 drive the pair of clamping plates 6 to loosen the battery cells by moving away from each other. The structural layout between the clamping driving member 4 and the clamping plates 6 in this application is compact, reducing the space occupied by the material pushing device 100.

[0039] Exemplarily, the clamping driving member 4 is selected as a double-headed cylinder.

[0040] Please refer to Figure 2 As shown, in some embodiments, an installation frame 10 is installed at the driving end of the lifting driving member 5, and the push plate 7 and the clamping driving member 4 are both fixedly installed on the installation frame 10, so that the lifting driving member 5 can synchronously drive the push plate 7 and the clamping block to lift, facilitating the subsequent material pushing device 100 to avoid the end plate of the battery cell module when exiting the tooling.

[0041] Please refer to Figure 2As shown, in some embodiments, a buffer cylinder 8 is respectively provided on two driving ends of the clamping driving member 4, and the clamping plate 6 is installed on the driving end of the corresponding buffer cylinder 8. After the battery cell to be clamped is pushed in place, when the clamping driving member 4 continues to move forward, the buffer cylinder 8 can contract under force after the frictional force between the clamping plate 6 and the battery cell reaches a preset value, so as to offset the moving distance of the translation driving member 3 relative to the clamping plate 6, and avoid excessive extrusion of the stacked battery cells by the clamping plate 6 due to the driving accuracy problem of the translation driving member 3.

[0042] Please refer to Figure 2 As shown, in some embodiments, a mounting plate 9 is respectively installed on two driving ends of the clamping driving member 4, the fixed end of the buffer cylinder 8 is installed on the mounting plate 9, and a second slide rail parallel to the first slide rail 1 is provided on the mounting plate 9. The clamping plate 6 is slidably installed on the second slide rail through a second slider.

[0043] When the buffer cylinder 8 contracts, the clamping plate 6 is moved along the second slide rail to guide the movement of the clamping plate 6 and ensure the stability of the movement of the clamping plate 6.

[0044] Please refer to Figure 2 As shown, in some embodiments, a first detection sensor 11 is further provided on two driving ends of the clamping driving member 4. Specifically, the first detection sensor 11 is fixedly installed on the mounting plate 9, and the first detection sensor 11 is arranged on one side of a pair of clamping plates 6 close to the stacked battery cells. During the process of the translation driving member 3 driving the first detection sensor 11 to move along the first slide rail 1, it is detected whether the end plate is inclined. Specifically, during the process of the first detection sensor 11 moving along the first slide rail 1, the end plate of the battery cell module is located on the movement path of the first detection sensor 11. When the end plate is inclined, the end of the end plate will appear in the sensing area of the first detection sensor 11. If the first detection sensor 11 detects it, it means that the end plate is inclined. On the contrary, if the end plate is not inclined, the end plate will not be detected during the movement of the first detection sensor 11.

[0045] Please refer to Figure 2 As shown, in some embodiments, a second detection sensor 12 is further provided on two driving ends of the clamping driving member 4. Specifically, the second detection sensor 12 is fixedly installed on the mounting plate 9, and the second detection sensor 12 is arranged on one side of a pair of clamping plates 6 close to the stacked battery cells. During the battery cell stacking process, the second detection sensor 12 moves along the first slide rail 1 following the bracket 2, and detects the stacking reference plate or the stacked battery cells in advance during the battery cell stacking process, so as to control the translation driving member 3 to decelerate, so that the battery cell to be stacked slowly approaches the stacked battery cells, and avoid the battery cell to be stacked having too large inertia and violently hitting the stacked battery cells.

[0046] Please refer to Figure 2As shown, in some embodiments, third detection sensors 13 are further provided on two driving ends of the clamping driving member 4. In the direction of the material stacking, the third detection sensors 13 are located at a predetermined distance behind the second detection sensors 12. After the translation driving member 3 decelerates, the translation driving member 3 drives the battery cells to be stacked closer to the stacked battery cells with a set stroke, so that the battery cells to be stacked move a set distance and are just stacked on the stacked battery cells. At this time, the calibration reference plate provided on the tooling is just located within the sensing area of the third detection sensors 13 to be detected, so as to calibrate the set stroke of the translation driving member 3. The third detection sensors 13 can timely detect the driving accuracy of the translation driving member 3 after acceleration, so that the staff can timely calibrate the translation driving member 3 according to the detection results of the third detection sensors 13, and avoid excessive extrusion between the battery cells due to problems with the driving accuracy of the translation driving member 3.

[0047] Please refer to Figure 1 As shown, in some embodiments, the translation driving member 3 includes a rack 31 arranged parallel to the first slide rail 1, a gear 32 engaged with the rack 31, and a motor 33 for driving the gear 32 to rotate. The fixed end of the motor 33 is fixedly installed on the bracket 2, and the gear 32 is installed on the driving end of the motor 33. The motor 33 drives the gear 32 to rotate, so that the gear 32 is in transmission cooperation with the rack 31, and then drives the bracket 2 to move along the first slide rail 1.

[0048] Please refer to Figure 3 As shown, in some embodiments, a contact plate 14 is provided on the surface of the push plate 7 in contact with the battery cell. The contact plate 14 is configured to be in contact with the battery cell. A buffer layer 15 is provided on the side surface of the contact plate 14 opposite to the battery cell. The buffer layer 15 can be made of non-metallic materials such as ABS, Teflon, foam or rubber. Through the setting of the buffer layer 15, hard contact between the battery cell and the contact plate 14 is avoided, and the friction between the battery cell and the contact plate 14 is increased, so as to avoid relative sliding between the battery cell and the contact plate 14.

[0049] An elastic member 16 and a position sensor 17 are provided between the contact plate 14 and the push plate 7. Specifically, one end of the elastic member 16 is fixedly connected to the push plate 7, and the other end is fixedly connected to the contact plate 14, so that the contact plate 14 and the push plate 7 are elastically connected through the elastic member 16. The position sensor 17 includes a sensing end installed on the push plate 7 and a partition piece installed on the contact plate 14 and cooperating with the sensing end. When the push plate 7 pushes the battery cells to be stacked into place, the elastic member 16 is compressed. At this time, the partition piece just inserts into the sensing area of the sensing end so that the sensing end obtains an induction. The translation driving member 3 stops driving the push plate 7 to further push the battery cells to be stacked according to the induction of the sensing end, avoiding excessive extrusion of the stacked battery cells by the battery cells to be stacked. At the same time, the clamping driving member 4 can drive a pair of clamping plates 6 to loosen the battery cells according to the induction of the sensing end, so that the translation driving member 3 drives the bracket 2 to move in the reverse direction, thereby driving the clamping plates 6 and the push plate 7 to reset. Optionally, the elastic member 16 is selected as a spring.

[0050] Please refer to Figure 4 As shown, in some embodiments, the material pushing device 100 further includes an extrusion assembly 18, and the extrusion assembly 18 is located below the bracket 2 and is arranged near the starting end of the first slide rail 1 (the end far from the stacked battery cells). The extrusion assembly 18 includes an extrusion cylinder 181 and an extrusion block 182 arranged on the driving end of the extrusion cylinder 181. The extrusion cylinder 181 can push the extrusion block 182 to reciprocate along the material stacking direction. After the battery cells are stacked, the extrusion cylinder 181 extends to drive the extrusion block 182 to push the end plate on the tooling towards the stacked battery cells, so as to extrude the stacked battery cells through the end plate, facilitating the sleeving of the steel strip of the subsequent battery cell module.

[0051] Through the arrangement of the extrusion assembly 18, the material pushing device 100 in the present application can simultaneously realize the functions of stacking battery cells and extruding battery cells.

[0052] The above has described an embodiment of the present application in detail, but the content described is only a preferred embodiment of the present application and cannot be considered as limiting the scope of implementation of the present application. All equivalent changes and improvements made within the scope of the present application should still fall within the scope covered by the patent of the present application.

[0053] It should be noted that the "first", "second" and similar terms used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. The descriptions of directions such as "left", "right", "left side", "right side", "upper part", "lower part", "top", "bottom", etc. in this application are all defined based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the described structure must be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application. In the description of this application, "a plurality of" means more than two, unless otherwise specifically defined.

[0054] In the description of this application, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

Claims

1. A material pushing device, characterized in that, The material pushing device includes a first slide rail arranged along the material stacking direction, a bracket slidably mounted on the first slide rail through a first slider, and a translation driving member for driving the bracket to move along the first slide rail. A clamping driving member and a lifting driving member are mounted on the bracket. A pair of clamping plates are provided at the driving end of the clamping driving member, and a pushing plate is provided at the driving end of the lifting driving member. A clamping interval is formed between the pair of clamping plates. The clamping driving member is configured to drive the pair of clamping plates to relatively approach or separate perpendicular to the material stacking direction, so as to clamp or release at least two materials arranged perpendicular to the material stacking direction. The lifting driving member is configured to drive the pushing plate to rise or fall, so that the pushing plate moves to the upper side of the clamping interval or moves to one side of the clamping interval to abut against and push at least two materials clamped by the pair of clamping plates.

2. The material pushing device according to claim 1, characterized in that The clamping driving member is arranged above the clamping interval, and the clamping driving member includes two driving ends arranged at intervals perpendicular to the material stacking direction. The pair of clamping plates are respectively mounted on the two driving ends of the clamping driving member.

3. The material pushing device according to claim 2, wherein A buffer cylinder is respectively provided on the two driving ends of the clamping driving member. The clamping plate is mounted on the driving end of the corresponding buffer cylinder. The buffer cylinder is configured to contract after the friction force between the clamping plate and the material reaches a preset value.

4. The material pushing device according to claim 3, wherein, An installation plate is respectively mounted on the two driving ends of the clamping driving member. The fixed end of the buffer cylinder is mounted on the installation plate. A second slide rail parallel to the first slide rail is provided on the installation plate. The clamping plate is slidably mounted on the second slide rail through a second slider.

5. The material pushing device according to claim 2, characterized in that, A first detection sensor is further provided on the two driving ends of the clamping driving member. The first detection sensor is configured to detect whether the end plate of the battery cell module is inclined during the movement of the bracket along the first slide rail.

6. The material pushing device according to claim 2, characterized in that A second detection sensor is further provided on the two driving ends of the clamping driving member. The second detection sensor is configured to detect the stacking reference plate or the stacked materials in advance during the movement of the bracket along the first slide rail, so as to control the translation driving member to decelerate.

7. The material pushing device according to claim 6, wherein A third detection sensor is further provided on the two driving ends of the clamping driving member. In the material stacking direction, the third detection sensor is located at a predetermined distance behind the second detection sensor. The third detection sensor is configured to cooperate with the second detection sensor to verify the moving distance of the translation driving member driving the bracket after the second detection sensor detects the stacked materials.

8. The material pushing device according to claim 1, characterized in that A contact plate is provided on the surface of the pushing plate in contact with the material. The contact plate is configured to contact the material, and a buffer layer is provided on the side surface of the contact plate opposite to the material. An elastic member and a position sensor are provided between the contact plate and the pushing plate. The elastic member is configured to elastically expand and contract under an external force to change the distance between the contact plate and the pushing plate. The position sensor is configured to control the translation driving member to stop when detecting that the distance between the contact plate and the pushing plate reaches a preset value.

9. The material pushing device according to claim 1, characterized in that The translation driving member includes a rack arranged parallel to the first slide rail, a gear meshing with the rack, and a motor for driving the gear to rotate. The fixed end of the motor is fixedly installed on the bracket, and the gear is installed on the driving end of the motor.

10. The material pushing device according to claim 1, wherein, The material pushing device further includes an extrusion assembly. The extrusion assembly is located below the bracket and near the starting end of the first slide rail. The extrusion assembly is configured to extrude the battery cell module. The extrusion assembly includes an extrusion block capable of abutting against the end plate of the battery cell module and an extrusion cylinder capable of pushing the extrusion block to reciprocate along the material stacking direction. The extrusion block is arranged at the driving end of the extrusion cylinder.

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