Hot pressing device for battery production

Abstract

The utility model discloses a battery production hot-pressing device, which relates to the technical field of hot-pressing devices and comprises a base component and a protective support table component arranged on the top surface of the base component, a positioning component is arranged on one side of the protective support table component, a support component is arranged on the top surface of the base component, and a push handle component is arranged on one side of the base component. The protective supporting table assembly comprises a heating cavity formed in the top face of the base assembly, one side of an inner cavity of the heating cavity is slidably connected with a lower hot-pressing supporting plate, a long groove is formed in the middle of the lower hot-pressing supporting plate, and four sets of buffering parts are arranged at the four corners of the inner cavity of the heating cavity. And the positioning assembly comprises a first motor fixedly mounted in the heating cavity, by means of the arrangement, effective side edge positioning work can be conveniently conducted on the battery during hot pressing work of the device, the distance between the two clamping plates can be conveniently adjusted, deviation of the battery during hot pressing work is avoided through the positioning function, and the quality and the working efficiency of the hot pressing equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing devices, in particular to a hot pressing device for battery production. Background Art

[0002] With the rapid development of lithium-ion battery technology, lithium-ion batteries have become mainstream. Lithium-ion batteries are mainly composed of cathodes, anodes, electrolytes, diaphragms, etc. Hot pressing is usually used to hot-press the cathodes, anodes and diaphragms. At present, the number of layers of winding or stacking of single cells is increasing. The traditional cell hot pressing device heats the upper and lower hot pressing plates, places the cell on the lower hot pressing plate, and then moves the upper hot pressing plate down to heat and pressurize the cell. This heat transfer method takes a long time, and the core is not firmly bonded after hot pressing, which affects the quality of the cell and production efficiency. The traditional hot pressing device lacks the positioning function of the battery.

[0003] On this basis, after searching the patent website, the application number CN218731183U discloses a lithium battery cell hot pressing device;

[0004] It can be seen that the above patent has the following shortcomings: the structure of traditional battery production hot pressing equipment is relatively simple. The battery hot pressing device places the battery cell on the lower hot pressing plate, and then moves the upper hot pressing plate downward to hot press the battery cell for processing. The hot pressing device lacks the function of effectively positioning the battery cell. If the battery cell shakes due to external factors, the battery hot pressing work is prone to deviations, which is not conducive to the quality of product processing and reduces the practicality of the device.

[0005] In view of the above problems, a hot pressing device for battery production is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a battery production hot pressing device, which is used to work, thereby solving the problem that the traditional battery production hot pressing equipment in the above background has a relatively simple structure. The battery hot pressing device places the battery cell on the lower hot pressing plate, and then moves the upper hot pressing plate downward to perform hot pressing on the battery cell. However, the hot pressing device lacks the function of effectively positioning the battery cell. If the battery cell shakes due to external factors, the battery hot pressing work is prone to deviation, which is not conducive to the quality of product processing and reduces the practicability of the device.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a battery production hot pressing device, comprising a base assembly and a protective support platform assembly arranged on the top surface of the base assembly, a positioning assembly is arranged on one side of the protective support platform assembly, a supporting assembly is arranged on the top surface of the base assembly, and a push handle assembly is arranged on one side of the base assembly. The protective support platform assembly comprises a heating cavity arranged on the top surface of the base assembly, a lower hot pressing support plate is slidably connected to one side of the inner cavity of the heating cavity, a long groove is arranged in the middle of the lower hot pressing support plate, buffer components are arranged at the four corners of the inner cavity of the heating cavity, and four groups of buffer components are arranged. The positioning assembly comprises a first motor fixedly installed inside the heating cavity, a first roller is arranged on one side of the first motor, the first roller is connected to the output end of the first motor, the inner cavity of the heating cavity is also rotatably connected to positive and negative screw rods, a second roller is fixedly connected to the middle of the positive and negative screw rods, and a belt is sleeved between the second roller and the first roller.

[0008] Preferably, a top plate is fixedly connected to one side of the support assembly, a hydraulic cylinder is fixedly installed at the bottom of the top plate, multiple groups of hydraulic cylinders are provided, an upper hot pressing plate is provided at the lower end of the hydraulic cylinder, and the upper hot pressing plate is connected to the output ends of the multiple groups of hydraulic cylinders.

[0009] Preferably, the outer circumference of the positive and negative threaded rod is threadedly connected with a slide plate, and two groups of slide plates are provided, and the two groups of slide plates are both slidably connected to the inner cavity of the long groove.

[0010] Preferably, a clamping plate is provided on the upper end of the lower hot pressing support plate, and two groups of clamping plates are provided. The two groups of clamping plates are respectively fixedly connected to the two groups of slide plates at corresponding positions, and a rubber pad is provided on one side of the inner wall of the clamping plate.

[0011] Preferably, the buffer component includes a fixed plate fixedly connected to the inner cavity of the heating chamber, a lower linking slot block is fixedly connected to the bottom of the inner cavity of the heating chamber, two groups of lower linking slot blocks are provided, and one side of the two groups of lower linking slot blocks are rotatably connected to a first rotating plate.

[0012] Preferably, one side of two adjacent groups of first rotating plates is provided with a movable plate, a spring is fixedly connected between the two groups of movable plates, and one side of the two groups of first rotating plates is rotationally connected to one side of the two groups of movable plates respectively.

[0013] Preferably, one side of the fixed plate is rotatably connected to a turntable, and two groups of turntables are provided. One side of the turntable is fixedly connected to a connecting plate, and two groups of connecting plates are provided. A second rotating plate is slidably connected between two adjacent groups of connecting plates, and two groups of second rotating plates are provided.

[0014] Preferably, one side of the two groups of second rotating plates are respectively rotatably connected to one side of the two groups of movable plates, and an upper connecting groove block is fixedly connected to the bottom of the lower hot pressing support plate. Two groups of upper connecting groove blocks are provided, and the upper connecting groove blocks of two adjacent groups are respectively rotatably connected to the two groups of second rotating plates.

[0015] 1. The battery production hot pressing device proposed by the utility model first turns on the heating working mode of the heating cavity, so that the lower hot pressing support plate is heated at the same time, which can facilitate the hot pressing steps of processing the lithium-ion battery placed on the top surface of the lower hot pressing support plate, and improve the efficiency of heating and forming the sub-lithium battery. In order to achieve the positioning effect during the battery processing process, the first motor is turned on, and the first motor rotates forward or reversely. The first motor drives the first roller to rotate. Due to the belt transmission, the first roller will drive the second roller and the positive and negative screw rods to rotate, so that the positive and negative screw rods rotate forward or reversely. Due to the cooperation of the slide plate and the long slot limit, the two groups of slide plates move closer to or away from each other, and at the same time, the slide plate drives the clamping plate to move. The user can adjust the distance between the two groups of clamping plates according to the size of the lithium battery. The two groups of clamping plates cooperate to jointly hold the top surface of the lower hot pressing support plate. The battery side is limited and positioned, and the rubber pad improves the anti-slip performance of the clamping plate, so as to better position and stabilize the battery, and multiple groups of hydraulic cylinders are turned on. The hydraulic cylinders drive the extension to drive the upper hot pressing plate to move downward, that is, the hydraulic cylinder drives the upper hot pressing plate to press down toward the side close to the lower hot pressing support plate, and the lower hot pressing support plate and the upper hot pressing plate jointly realize the hot pressing work of the ion battery; after the work is completed, the multiple groups of hydraulic cylinders are driven to contract, and the upper hot pressing plate moves upward away from the protective support platform assembly, and the first motor is driven to rotate in the opposite direction so that the two groups of clamping plates move away from each other, so that the clamping plates give up the limiting work on the battery, which can facilitate the user to remove the battery from the equipment. This setting facilitates the device to perform effective side positioning work on the battery during hot pressing work, and the spacing between the two groups of clamping plates can be conveniently adjusted. The positioning function avoids the displacement of the battery during hot pressing work, thereby improving the quality and work efficiency of the hot pressing equipment.

[0016] 2. In the battery production hot pressing device proposed by the utility model, during the process of hot pressing the battery by the upper hot pressing plate, the processed battery on the top surface of the lower hot pressing support plate will often shake due to external force. If the processed battery vibrates and shakes due to external factors, the vibration force will be transmitted to the lower hot pressing support plate, and the lower hot pressing support plate will slide up and down along the inner cavity of the heating chamber. The lower hot pressing support plate will transmit the downward vibration force to the upper connecting groove block, and the upper connecting groove block will make the second rotating plates located on both sides of the spring open to both sides, and the two adjacent second rotating plates move to both sides, and the two groups of turntables will rotate at the same time, and the second rotating plate will slide between the two groups of connecting plates at the same time. At this time, the spring is stretched and deformed, and the two adjacent moving plates move away from each other. The upper sides of the two groups of first rotating plates are The opening movement away from each other requires restoring force to be generated by the elastic deformation of the spring, which will buffer the movement of each component in the entire buffer component, and the four groups of buffer components jointly buffer and protect the lower hot pressing support plate connected to its upper end, so that the lower hot pressing support plate can avoid large shaking during the hot pressing process, thereby keeping the processed battery placed on the top surface of the lower hot pressing support plate in a stable state, further preventing the battery from shifting, and facilitating the lower hot pressing support plate and the upper hot pressing plate to jointly perform hot pressing on the battery. The setting of multiple groups of buffer components has a buffering and protective effect on the device and the ion batteries placed on the device, avoiding large shaking of the battery during the hot pressing process, improving the hot pressing quality of the equipment, and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall structure diagram of the utility model;

[0018] Figure 2 This is a structural diagram of the protective support platform assembly, positioning assembly and support assembly of the utility model;

[0019] Figure 3 This is a structural diagram of the protective support platform assembly and the positioning assembly of the utility model;

[0020] Figure 4 This is a structural diagram of the positioning component of the utility model;

[0021] Figure 5 This is a disassembled structural diagram of the protective support platform assembly and the positioning assembly of the utility model;

[0022] Figure 6 This is a structural diagram of the buffer component of the utility model.

[0023] In the figure: 1. Protection support platform assembly; 11. Heating cavity; 12. Lower hot pressing support plate; 13. Long groove; 14. Buffer component; 141. Fixed plate; 142. Upper connecting groove block; 143. Turntable; 144. Connecting plate; 145. Moving plate; 146. Spring; 147. First rotating plate; 148. Lower connecting groove block; 149. Second rotating plate; 2. Positioning assembly; 21. First motor; 22. First rotating roller; 23. Second rotating roller; 24. Belt; 25. Positive and negative threaded rod; 26. Slide plate; 27. Clamping plate; 28. Rubber pad; 3. Base assembly; 4. Support assembly; 41. Top plate; 42. Hydraulic cylinder; 43. Upper hot pressing plate; 5. Push handle assembly. DETAILED DESCRIPTION

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

[0025] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0026] Combination Figure 1-6 , a battery production hot pressing device, comprising a base assembly 3 and a protective support platform assembly 1 arranged on the top surface of the base assembly 3, a positioning assembly 2 is arranged on one side of the protective support platform assembly 1, a supporting assembly 4 is arranged on the top surface of the base assembly 3, and a push handle assembly 5 is arranged on one side of the base assembly 3. The protective support platform assembly 1 comprises a heating cavity 11 arranged on the top surface of the base assembly 3, a lower hot pressing support plate 12 is slidably connected to one side of the inner cavity of the heating cavity 11, a long groove 13 is arranged in the middle of the lower hot pressing support plate 12, buffer components 14 are arranged at the four corners of the inner cavity of the heating cavity 11, and the buffer components 14 are arranged in four groups, the positioning assembly 2 comprises a first motor 21 fixedly installed inside the heating cavity 11, a first roller 22 is arranged on one side of the first motor 21, and the first roller 22 is connected to the output end of the first motor 21, and the inner cavity of the heating cavity 11 is also rotatably connected with a positive and negative threaded rod 25, a second roller 23 is fixedly connected to the middle of the positive and negative threaded rod 25, and a belt 24 is sleeved between the second roller 23 and the first roller 22.

[0027] The utility model is further described below in conjunction with embodiments.

[0028] Embodiment 1:

[0029] See also Figure 1-4A top plate 41 is fixedly connected to one side of the support assembly 4, a hydraulic cylinder 42 is fixedly installed at the bottom of the top plate 41, and multiple groups of hydraulic cylinders 42 are provided. An upper hot pressing plate 43 is provided at the lower end of the hydraulic cylinder 42, and the upper hot pressing plate 43 is connected to the output ends of the multiple groups of hydraulic cylinders 42. The outer periphery of the positive and negative threaded rods 25 is threadedly connected with a slide plate 26. Two groups of slide plates 26 are provided. Both groups of slide plates 26 are slidably connected to the inner cavity of the long groove 13. A clamping plate 27 is provided at the upper end of the lower hot pressing support plate 12. Two groups of clamping plates 27 are provided. The two groups of clamping plates 27 are respectively fixedly connected to the two groups of slide plates 26 at corresponding positions, and a rubber pad 28 is provided on one side of the inner wall of the clamping plate 27.

[0030] Embodiment 2:

[0031] See also Figure 1 and Figure 5-6 The buffer component 14 includes a fixed plate 141 fixedly connected to the inner cavity of the heating chamber 11, a lower link slot block 148 is fixedly connected to the bottom of the inner cavity of the heating chamber 11, and two groups of lower link slot blocks 148 are provided. One side of the two groups of lower link slot blocks 148 is rotatably connected to a first rotating plate 147, and one side of two adjacent first rotating plates 147 is provided with a moving plate 145. A spring 146 is fixedly connected between the two groups of moving plates 145. One side of the two groups of first rotating plates 147 is rotatably connected to one side of the two groups of moving plates 145, and one side of the fixed plate 141 is rotatably connected to The turntable 143 is provided with two groups, a connecting plate 144 is fixedly connected to one side of the turntable 143, two groups of connecting plates 144 are provided, a second rotating plate 149 is slidably connected between two adjacent groups of connecting plates 144, two groups of second rotating plates 149 are provided, one side of the two groups of second rotating plates 149 are respectively rotatably connected to one side of the two groups of movable plates 145, an upper connecting groove block 142 is fixedly connected to the bottom of the lower hot pressing support plate 12, two groups of upper connecting groove blocks 142 are provided, and two adjacent groups of upper connecting groove blocks 142 are respectively rotatably connected to the two groups of second rotating plates 149.

[0032] In summary: the battery production hot pressing device proposed by the utility model first turns on the heating working mode of the heating cavity 11, so that the lower hot pressing support plate 12 is heated at the same time, which can facilitate the hot pressing steps of processing the lithium-ion battery placed on the top surface of the lower hot pressing support plate 12, and improve the efficiency of heating and forming of the sub-lithium battery. In order to achieve the positioning effect during the battery processing process, the first motor 21 is turned on, and the first motor 21 rotates forward or reversely. The first motor 21 drives the first roller 22 to rotate. Due to the transmission of the belt 24, the first roller 22 will drive the second roller 23 and the positive and negative screw rods 25 to rotate, so that the positive and negative screw rods 25 rotate forward or reversely. Due to the limited cooperation of the slide plate 26 and the long groove 13, the two groups of slide plates 26 move closer to or away from each other, and at the same time, the slide plate 26 drives the clamping plate 27 to move. The user can adjust the distance between the two groups of clamping plates 27 according to the size of the lithium battery. The two groups of clamping plates 27 cooperate with each other to place the battery on the lower hot pressing support. The battery side surface on the top surface of the plate 12 is limited and positioned, and the rubber pad 28 improves the anti-slip performance of the clamping plate 27, better positions and stabilizes the battery, and multiple groups of hydraulic cylinders 42 are turned on. The hydraulic cylinders 42 drive and extend to drive the upper hot pressing plate 43 to move downward, that is, the hydraulic cylinders 42 drive the upper hot pressing plate 43 to move downward toward the side close to the lower hot pressing support plate 12, and the lower hot pressing support plate 12 and the upper hot pressing plate 43 jointly realize the hot pressing work of the ion battery; after the work is completed, the multiple groups of hydraulic cylinders 42 are driven to contract, and the upper hot pressing plate 43 moves upward away from the protective support platform assembly 1, and the first motor 21 is driven to rotate in the opposite direction so that the two groups of clamping plates 27 move away from each other, so that the clamping plate 27 gives up the limiting work on the battery, which can facilitate the user to remove the battery from the device. This setting facilitates the device to effectively position the battery on the side during hot pressing, and the distance between the two groups of clamping plates 27 can be conveniently adjusted. The positioning function prevents the battery from being offset during hot pressing work, thereby improving the quality and work efficiency of the hot pressing equipment;

[0033] During the process of hot pressing the battery by the upper hot pressing plate 43, the processed battery on the top surface of the lower hot pressing support plate 12 will often shake due to external force. If the processed battery vibrates and shakes due to external factors, the vibration force is transmitted to the lower hot pressing support plate 12, and the lower hot pressing support plate 12 will slide up and down along the inner cavity of the heating chamber 11. The lower hot pressing support plate 12 will transmit the downward vibration force to the upper connecting groove block 142. The upper connecting groove block 142 makes the second rotating plates 149 on both sides of the spring 146 open to both sides, and the two adjacent second rotating plates 149 move to both sides, and the two groups of turntables 143 will rotate at the same time. The second rotating plate 149 slides between the two groups of connecting plates 144 at the same time. At this time, the spring 146 is stretched and deformed, and the two adjacent moving plates 145 move away from each other. 7, the upper sides of the springs 146 make an opening movement away from each other, and the elastic deformation of the springs 146 requires the generation of a restoring force, which will buffer the movement of the components in the entire buffer component 14, and the four groups of buffer components 14 have a common buffering effect on the lower hot pressing support plate 12 connected to the upper end thereof to provide buffering protection, so that the lower hot pressing support plate 12 is prevented from shaking greatly during the hot pressing process, thereby making the processed battery placed on the top surface of the lower hot pressing support plate 12 in a stable state, further preventing the battery from shifting, and facilitating the lower hot pressing support plate 12 and the upper hot pressing plate 43 to jointly perform hot pressing work on the battery. This arrangement of multiple groups of buffer components 14 has a buffering and protective effect on the device and the ion batteries placed on the device, avoiding large shaking of the batteries during the hot pressing process, improving the hot pressing quality of the equipment, and improving the practicability of the device.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery production hot pressing device, comprising a base assembly (3) and a protective support platform assembly (1) arranged on the top surface of the base assembly (3), a positioning assembly (2) being arranged on one side of the protective support platform assembly (1), a supporting assembly (4) being arranged on the top surface of the base assembly (3), and a push handle assembly (5) being arranged on one side of the base assembly (3), characterized in that: The protective support platform assembly (1) comprises a heating cavity (11) arranged on the top surface of the base assembly (3); a lower hot pressing support plate (12) is slidably connected to one side of the inner cavity of the heating cavity (11); a long groove (13) is arranged in the middle of the lower hot pressing support plate (12); buffer components (14) are arranged at the four corners of the inner cavity of the heating cavity (11); four groups of buffer components (14) are arranged; the positioning assembly (2) comprises a first motor (21) fixedly mounted inside the heating cavity (11); a first roller (22) is arranged on one side of the first motor (21); the first roller (22) is connected to the output end of the first motor (21); the inner cavity of the heating cavity (11) is also rotatably connected to a positive and negative threaded rod (25); a second roller (23) is fixedly connected to the middle of the positive and negative threaded rod (25); a belt (24) is sleeved between the second roller (23) and the first roller (22).

2. The battery production hot pressing device according to claim 1, characterized in that: A top plate (41) is fixedly connected to one side of the support assembly (4), a hydraulic cylinder (42) is fixedly mounted on the bottom of the top plate (41), a plurality of hydraulic cylinders (42) are provided, an upper hot pressing plate (43) is provided at the lower end of the hydraulic cylinder (42), and the upper hot pressing plate (43) is connected to the output ends of the plurality of hydraulic cylinders (42).

3. The battery production hot pressing device according to claim 2, characterized in that: The outer circumference of the positive and negative threaded rod (25) is threadedly connected with a slide plate (26), and two groups of slide plates (26) are provided. Both groups of slide plates (26) are slidably connected to the inner cavity of the long groove (13).

4. The battery production hot pressing device according to claim 3, characterized in that: A clamping plate (27) is provided at the upper end of the lower hot pressing support plate (12), and two groups of clamping plates (27) are provided. The two groups of clamping plates (27) are respectively fixedly connected to the two groups of slide plates (26) at corresponding positions, and a rubber pad (28) is provided on one side of the inner wall of the clamping plate (27).

5. The battery production hot pressing device according to claim 4, characterized in that: The buffer component (14) comprises a fixed plate (141) fixedly connected to the inner cavity of the heating cavity (11); a lower linking slot block (148) is fixedly connected to the bottom of the inner cavity of the heating cavity (11); two groups of lower linking slot blocks (148) are provided; one side of the two groups of lower linking slot blocks (148) are rotatably connected to a first rotating plate (147).

6. The battery production hot pressing device according to claim 5, characterized in that: A movable plate (145) is provided on one side of two adjacent groups of first rotating plates (147), a spring (146) is fixedly connected between the two groups of movable plates (145), and one side of the two groups of first rotating plates (147) is rotatably connected to one side of the two groups of movable plates (145) respectively.

7. The battery production hot pressing device according to claim 6, characterized in that: One side of the fixed plate (141) is rotatably connected to a rotating disk (143), and two groups of rotating disks (143) are provided. One side of the rotating disk (143) is fixedly connected to a connecting plate (144), and two groups of connecting plates (144) are provided. A second rotating plate (149) is slidably connected between two adjacent groups of connecting plates (144), and two groups of second rotating plates (149) are provided.

8. The battery production hot pressing device according to claim 7, characterized in that: One side of the two groups of second rotating plates (149) is rotatably connected to one side of the two groups of movable plates (145), and an upper connecting groove block (142) is fixedly connected to the bottom of the lower hot pressing support plate (12). Two groups of upper connecting groove blocks (142) are provided, and two adjacent groups of upper connecting groove blocks (142) are rotatably connected to the two groups of second rotating plates (149), respectively.

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