A lithium battery cell preheating, shaping and baking integrated machine

Abstract

The application relates to a lithium battery cell preheating, shaping and baking integrated machine, which comprises a frame body, a processing chamber, a cabinet door and a pressurizing die. The pressurizing die comprises a plurality of pressing plates, guide rods, elastic members and pressurizing members. The guide rods are connected in the processing chamber, and the pressing plates are slidably arranged on the guide rods. A heating mechanism is further arranged in the processing chamber. The heating mechanism comprises heating films arranged in the pressing plates respectively, a plurality of connecting probes arranged above the pressing plates, connecting contacts arranged below the pressing plates and an energized probe arranged at the bottom of the processing chamber. The connecting probes and the connecting contacts on the same pressing plate are electrically connected, the connecting contacts are electrically connected with the heating films on the pressing plates, and the lowermost connecting contact is connected with the energized probe. Thus, the battery cell can be preheated, pressurized and baked in one equipment, so that the battery cell can be processed in different ways in one equipment, and the processing of the battery cell is more convenient.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of an electric core processing device, in particular to a lithium battery electric core preheating, shaping and baking integrated machine. BACKGROUND

[0002] In the process of processing the electric core of a lithium battery, the electric core needs to be preheated by a preheating furnace first, then enters a cold pressing process to apply downward pressure to the electric core to perform shaping treatment, and finally is placed in an oven for drying and baking.

[0003] However, in the process of processing different processes, the product needs to be moved between multiple processing devices, and in the process of multiple movements, each movement increases the risk of abnormalities of the product, thereby affecting the stability of the product in the production process.

[0004] Therefore, a new technical solution is needed to solve the above problems. SUMMARY

[0005] In order to process the electric core in one device, the application provides a lithium battery electric core preheating, shaping and baking integrated machine.

[0006] The lithium battery electric core preheating, shaping and baking integrated machine provided by the application adopts the following technical solution:

[0007] A lithium battery electric core preheating, shaping and baking integrated machine, comprising a frame, a processing chamber capable of realizing sealing arranged on the frame, a cabinet door for closing the processing chamber, and a press mold arranged in the processing chamber, the press mold comprising a plurality of vertical arranged pressing plates, guide rods arranged on the pressing plates, and elastic members arranged between adjacent pressing plates, the processing chamber is further provided with a pressurizing member for driving the uppermost pressing plate to move downward, the guide rods are connected in the processing chamber, the pressing plates are slidingly arranged on the guide rods, and a heating mechanism is further arranged in the processing chamber, the heating mechanism comprising a heating film arranged in each pressing plate, a plurality of connection probes arranged above the pressing plates, a connection contact arranged below the pressing plates, and a power supply probe arranged at the bottom of the processing chamber, the connection probes and the connection contact on the same pressing plate are electrically connected, the connection contact is electrically connected with the heating film on the pressing plate, and the lowermost connection contact is connected with the power supply probe.

[0008] By adopting the above technical scheme, after the battery cell is placed between the adjacent pressing plates in the processing chamber, the cover body seals the opening of the processing chamber, so that the processing chamber is sealed, then power is supplied to preheat the battery cell, then the pressing plates move downward to press the battery cell and maintain for a period of time, then the heating film continues to heat to bake, so that the battery cell can be preheated, pressed and baked in one equipment, so that the battery cell can be processed differently in one equipment, the processing of the battery cell is more convenient, and when the pressing plates are subjected to the downward pressure applied by the pressing member, the elastic member between the adjacent pressing plates can apply a force away from each other to the two pressing plates, so that the pressure applied to the battery cell between the adjacent pressing plates can be kept constant, and when the pressing plates are no longer subjected to the pressure applied by the pressing member, the two pressing plates can be separated, so that the taking and placing of the battery cell are not easily affected.

[0009] Optionally, the pressing mold comprises a lower mounting plate, an upper mounting plate and a mounting rod fixed to the lower mounting plate, the guide rod is fixed between the upper mounting plate and the lower mounting plate, the lower end of the lower mounting plate is provided with a power supply contact for connecting with the power supply probe, the power supply contact is connected to the connecting contact of the lowermost pressing plate, the lower mounting plate abuts against the inner cavity ground of the processing chamber, and the driving end of the pressing member penetrates through the upper mounting plate and abuts against the upper end of the uppermost pressing plate.

[0010] By adopting the above technical scheme, the pressing plates are mounted between the upper mounting plate and the lower mounting plate, after the processing of the battery cell is completed, the entire structure for placing the battery cell can be directly taken out from the processing chamber and replaced with a new unprocessed battery cell, so that the replacement process of the battery cell in the processing process is more convenient, the downtime is reduced, and the efficiency of the battery cell processing is increased.

[0011] Optionally, the pressing member comprises a pressing driving member fixed to the upper end of the processing chamber, an extension rod arranged in the processing chamber and a corrugated sleeve sleeved outside the extension rod, the upper end of the corrugated sleeve is sealingly connected with the processing chamber, the lower end of the corrugated sleeve is sealingly connected with the lower end of the side wall of the extension rod, the free end of the pressing driving member is fixed to the upper end of the extension rod, and the lower end of the extension rod penetrates through the upper mounting plate and abuts against the upper end of the uppermost pressing plate.

[0012] By adopting the above technical scheme, the connection between the processing chamber and the pressing driving member is sealed by the corrugated sleeve, so that the processing chamber is not easily connected with the outside, and the processing of the battery cell is not easily affected.

[0013] Optionally, a plurality of limiting members for limiting the position of the lower mounting plate are further arranged in the processing chamber, the limiting member comprises a limiting seat and a limiting wheel rotatably connected to the limiting seat, the limiting wheel is used for abutting against the lower mounting plate, and the limiting members are arranged on both sides of the taking-out direction of the lower mounting plate.

[0014] By adopting the technical scheme, the position of the lower mounting plate moving into the processing chamber is guided by the limiting member, so that the position of the lower mounting plate in the processing chamber can be limited, the power-on probe and the power-on contact can be normally connected, and thus the processing process of the battery cell can be kept stable.

[0015] Optionally, the frame body is further provided with an opening and closing mechanism for horizontally moving the cabinet door, the opening and closing mechanism comprises a guide rail, an opening member for pushing the cabinet door to horizontally move along the guide rail, and a closing member for moving the cabinet door towards the processing chamber, a plurality of accommodation grooves are formed in the guide rail, a switching seat is slidably arranged in the accommodation grooves, two guide grooves are formed in the switching seat and communicate with the guide rail, the driving end of the closing member is connected with the switching seat, the lower end of the cabinet door is provided with a roller for sliding in the guide rail and the guide groove, an abutting groove is formed in the side wall of the cabinet door away from the processing chamber, and an abutting block is arranged on the free end of the opening member, the abutting block is used for being inserted into the abutting groove to drive the cabinet door to move along the guide rail.

[0016] By adopting the technical scheme, the cover body is moved by the opening and closing mechanism, so that the opening and closing of the opening of the processing chamber by the cover body are realized.

[0017] Optionally, the end of the processing chamber away from the opening is provided with a vacuum connector, and the vacuum connector is used for being connected with a vacuum pump.

[0018] By adopting the technical scheme, the inside of the processing chamber is vacuumized by the vacuum connector.

[0019] Optionally, the processing chamber is provided with a pressure stabilizing mechanism for stabilizing the distance between adjacent pressing plates, the pressure stabilizing mechanism is arranged on both sides of the pressing plate, the pressure stabilizing mechanism comprises a plurality of pressure stabilizing members, a connecting rod connecting the plurality of pressure stabilizing members, and a pressure stabilizing driving member for horizontally moving the pressure stabilizing members, and the lower end of the pressure stabilizing member is connected to the upper end of the pressing plate.

[0020] By adopting the technical scheme, the distance between the adjacent pressing plates is limited by the pressure stabilizing member, so that the pressure on the battery cell can be kept constant, and after the elastic member is heated and used for a long time, the pressure on the battery cell can still be kept constant.

[0021] Optionally, the pressure stabilizing member comprises a fixed connecting portion, an adjusting member threaded on the fixed portion, and a movable portion abutting against the pressing plate, the movable portion is slidably arranged on the connecting rod, the lower end of the adjusting member is connected with the movable portion, the end face of the movable portion close to the pressing plate is provided with a guide inclined surface, the lower end of the guide inclined surface is inclined away from the pressing plate, and the lower end of the movable portion abuts against the upper end of the pressing plate.

[0022] By adopting the technical scheme, the position of the movable part can be adjusted in use, so that the distance between adjacent pressing plates can be adjusted accordingly after the size of the product changes, and the battery cell can still receive the required pressure.

[0023] Optionally, the end of the movable part close to the pressing plate gradually moves away from the pressing plate from top to bottom.

[0024] By adopting the technical scheme, the lower pressing plate is first moved into position by the downward pressure of the movable part, and then the pressing plate above the moved pressing plate is moved downward, so that the downward pressure is applied to the pressing plates from bottom to top, and the pressure received by the battery cell on the pressing plate can be kept equal.

[0025] Optionally, the lower end of the movable part is further fixed with a supporting part, and a space for clamping the pressing plate is arranged between the lower end surface of the movable part and the upper end surface of the supporting part, and the lower end of the pressing plate abuts against the upper end surface of the supporting part.

[0026] By adopting the technical scheme, the distance of the downward movement of the pressing plate is limited by the supporting part, so that the pressure received by the battery cell on the pressing plate can be kept constant.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. By arranging the pressing plate capable of applying pressure to the battery cell in the processing chamber, and arranging the heating film in the pressing plate, the battery cell can be preheated by the heating of the heating film, and then the battery cell is pressed by the pressing plate, and finally dried by the heating film, so that the processing of the battery cell can be carried out on one equipment, and the processing of the battery cell is more convenient and stable.

[0029] 2. By arranging the pressure stabilizing mechanism to limit the distance between adjacent pressing plates, the pressure received by the battery cell can be kept constant. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of embodiment 1 of the present application;

[0031] Figure 2 It is a schematic diagram of embodiment 1 of the present application for showing the internal structure of the processing chamber;

[0032] Figure 3 It is a schematic diagram of embodiment 1 of the present application for showing the structure of the pressing mold;

[0033] Figure 4 It is a schematic diagram of embodiment 1 of the present application for showing the structure of the pressing part;

[0034] Figure 5Fig. 1 is a schematic view of the opening and closing mechanism for the display cabinet door according to an embodiment of the present application;

[0035] Figure 6 Fig. 1 is a schematic view of the opening and closing mechanism for the display cabinet door according to an embodiment of the present application; Figure 5 Fig. 1 is a schematic view of the opening and closing mechanism for the display cabinet door according to an embodiment of the present application;

[0036] Figure 7 Fig. 1 is a schematic view of the opening and closing mechanism for the display cabinet door according to an embodiment of the present application;

[0037] Figure 8 Fig. 1 is a schematic view of the opening and closing mechanism for the display cabinet door according to an embodiment of the present application; Figure 7 Fig. 1 is a schematic view of the opening and closing mechanism for the display cabinet door according to an embodiment of the present application;

[0038] In the figure, 1 is a frame body; 11 is a processing chamber; 12 is a cabinet door; 121 is a roller; 122 is an abutting groove; 13 is a vacuum joint; 2 is a press mold; 21 is a lower mounting plate; 22 is an upper mounting plate; 221 is a press groove; 23 is a mounting rod; 24 is a pressing plate; 241 is a fixing block; 242 is a fixing groove; 25 is a guide rod; 26 is an elastic member; 27 is a pressing member; 271 is a pressing driving member; 272 is an extension rod; 273 is a corrugated sleeve; 274 is a pressing block; 3 is a heating mechanism; 31 is a heating film; 32 is a connecting probe; 33 is a connecting contact; 34 is an energizing probe; 35 is an energizing contact; 4 is a limiting member; 41 is a limiting seat; 42 is a limiting wheel; 5 is an opening and closing mechanism; 51 is a guide rail; 511 is a giving slot; 52 is an opening member; 521 is an abutting block; 53 is a closing member; 54 is a switching seat; 541 is a guide groove; 6 is a pressure stabilizing mechanism; 61 is a pressure stabilizing member; 611 is a fixed part; 612 is a movable part; 613 is an adjusting member; 614 is a guide inclined surface; 315 is a supporting part; 62 is a connecting rod; 63 is a pressure stabilizing driving member; 64 is a corrugated tube. DETAILED DESCRIPTION

[0039] The present application will be further described in detail below with reference to the accompanying drawings.

[0040] The present application discloses a lithium battery cell preheating, shaping, baking and integrated machine, embodiment 1: as shown in Figure 1 and Figure 2 , including a frame body 1, two adjacent processing chambers 11 arranged on the frame body 1, cabinet doors 12 respectively sealing the openings on the side walls of the processing chambers 11, and press molds 2 respectively arranged in the processing chambers 11. The end face of the processing chamber 11 close to the cabinet door 12 is provided with a sealing ring, and the cabinet door 12 abuts on the sealing ring to close the opening of the processing chamber 11. As shown in Figure 2 and Figure 3As shown, two sets of pressing molds 2 are arranged in each processing chamber 11, one set of pressing molds 2 is arranged on the inner side of the processing chamber 11, and the pressing mold 2 comprises a lower mounting plate 21, an upper mounting plate 22, a plurality of mounting rods 23 arranged on the lower mounting plate 21, a plurality of vertical pressing plates 24, a guide rod 25 penetrating through the pressing plate 24, an elastic member 26 arranged between adjacent mounting plates, and a pressing member 27 arranged on the uppermost pressing plate 24 to drive the pressing plate 24 to move downward. The mounting rod 23 is arranged between the upper mounting plate 22 and the lower mounting plate 21, and the mounting rod 23 is arranged at the four corners of the upper mounting plate 22 and the lower mounting plate 21. The upper end of the mounting rod 23 is fixed to the upper mounting plate 22 by bolts, and the lower end of the mounting rod 23 is fixed to the lower mounting plate 21 by bolts. The guide rod 25 is arranged between the upper mounting plate 22 and the lower mounting plate 21, and the two ends of the guide rod 25 are fixed to the upper mounting plate 22 and the lower mounting plate 21 by bolts, respectively. The pressing plate 24 is arranged between the upper mounting plate 22 and the lower mounting plate 21, and the guide rod 25 penetrates through the pressing plate 24 to guide the vertical movement of the pressing plate 24. The lowermost pressing plate 24 is fixed to the lower mounting plate 21 by bolts. The elastic member 26 is a spring in this embodiment, and the spring is arranged between adjacent pressing plates 24, and the two ends of the spring abut against the pressing plate 24 to push the pressing plates 24 away from each other.

[0041] As shown in Figure 3 and Figure 4 , the pressing member 27 comprises a pressing drive member 271 arranged on the upper end face of the outer wall of the processing chamber 11, an extension rod 272 arranged in the processing chamber 11, and a corrugated sleeve 273 sleeved on the extension rod 272. The pressing drive member 271 is a hydraulic cylinder in this embodiment, and the cylinder body of the hydraulic cylinder is fixed to the top end of the outer wall of the processing chamber 11 by bolts, and the piston rod of the hydraulic cylinder penetrates through the processing chamber 11. The extension rod 272 is coaxially arranged on the free end of the hydraulic cylinder and is threadedly connected therebetween. The corrugated sleeve 273 is arranged with an upper opening, and one end of the extension rod 272 located in the corrugated sleeve 273 is threadedly connected with the bottom wall of the corrugated sleeve 273. The upper end of the corrugated sleeve 273 penetrates out of the processing chamber 11, and a convex edge is coaxially fixed on the upper end of the corrugated sleeve 273. The lower end of the convex edge abuts against the outer wall of the processing chamber 11 and is sealingly connected with the processing chamber 11, so that the processing chamber 11 is kept sealed at the connection of the corrugated sleeve 273. The upper end of the upper mounting plate 22 is provided with a pressing groove 221, the upper end of the uppermost pressing plate 24 is fixed with a fixed block 241 by bolts, the upper end of the fixed block 241 is provided with an opening fixed groove 242, the lower end of the corrugated sleeve 273 is threadedly connected with a pressing block 274, and the pressing block 274 is embedded in the fixed groove 242 to push the pressing plate 24 to move downward.

[0042] As shown in Figure 2 and Figure 3As shown, the processing chamber 11 is also provided with a heating mechanism 3 for heating the battery cell, the heating mechanism 3 includes a heating film 31 arranged in the pressing plate 24, a plurality of connecting probes 32 arranged above the pressing plate 24, a connecting contact 33 arranged below the pressing plate 24, and a power supply probe 34 arranged at the bottom of the processing chamber 11. The side wall of the pressing plate 24 is provided with a receiving groove, the heating film 31 is arranged in the receiving groove, and the two end faces of the heating film 31 are respectively attached to the upper and lower end faces of the receiving groove. The uppermost pressing plate 24 is not provided with a connecting probe 32, the connecting probe 32 arranged on the pressing plate 24 is in abutment with the connecting contact 33 arranged on the upper pressing plate 24 and makes the two conductive, and the connecting contact 33 arranged on the same pressing plate 24 is electrically connected with the heating film 31 and the connecting contact 33. The lower end of the lower mounting plate 21 is fixed with a power supply contact 35 using a bolt, the power supply contact 35 can be in abutment with the power supply probe 34 arranged at the bottom of the processing chamber 11, and the power supply contact 35 is in electrical communication with the connecting contact 33 of the lowermost pressing plate 24, so that after the power supply contact 35 is in abutment with the power supply probe 34, the heating film 31 on the pressing plate 24 can be powered on through the conduction between the connecting probe 32 and the connecting contact 33.

[0043] As shown in Figure 2 After the lower mounting plate 21 is moved into the processing chamber 11, the position of the lower mounting plate 21 in the processing chamber 11 needs to be limited. Therefore, four limit members 4 for limiting the position of the lower mounting plate 21 are arranged in the processing chamber 11, two limit members 4 are arranged close to the opening of the processing chamber 11, two limit members 4 are arranged away from the opening of the processing chamber 11, and the two limit members 4 on the same side are away from each other. The limit member 4 includes a limiting seat 41 fixed to the ground in the inner cavity of the processing chamber 11 using a bolt and a rotating shaft of a limiting wheel 42 rotatably connected to the limiting seat 41, the rotating shaft is perpendicular to the direction in which the lower mounting plate 21 is removed from the processing chamber 11. When the lower mounting plate 21 is placed in the processing chamber 11, the lower mounting plate 21 is in contact with the roller 121, so that the roller 121 guides the movement to the correct position, and the power supply contact and the power supply contact 35 are normally connected.

[0044] As shown in Figure 5 and Figure 6As shown, the frame is further provided with an opening and closing mechanism 5 for moving the cabinet door 12 to open and close the opening of the processing chamber 11. The opening and closing mechanism 5 includes a guide rail 51 fixed to the frame by bolts, an opening member 52 for horizontally moving the cabinet door 12, and a closing member 53 for moving the cabinet door 12 towards the processing chamber 11. The guide rail 51 is arranged at the upper and lower ends of the cabinet door 12. The upper end of the cabinet door 12 is rotatably connected with a plurality of rollers 121. The rollers 121 are connected with the guide rail 51 to move along the guide rail 51. The guide rail 51 is further provided with a clearance slot 511 for cutting off the guide rail 51. The clearance slot 511 is slidably provided with a switching seat 54. The sliding direction of the switching seat 54 is perpendicular to the length direction of the guide rail 51. The end surface of the switching seat 54 close to the cover is provided with two guide grooves 541. The two guide grooves 541 are in communication with the guide rail 51, so that the rollers move between the guide rail 51 and the guide grooves 541. The closing member 53 is a hydraulic cylinder in this embodiment. The cylinder body of the hydraulic cylinder is fixed to the frame 1 by bolts. The piston rod of the hydraulic cylinder is connected to the switching seat 54 by bolts, so as to move the switching seat 54. The opening member 52 is a lead screw sliding table in this embodiment. The sliding table of the opening member 52 is fixed with an abutting block 521 by bolts. The end surface of the cabinet door 12 away from the processing chamber 11 is provided with an abutting groove 122. The abutting block 521 is embedded in the abutting groove 122 to move the cabinet door 12 along the guide rail 51. When the opening of the processing chamber 11 needs to be opened, the switching seat 54 moves away from the processing chamber 11 to the position where the guide groove 541 and the guide rail 51 are in communication. The abutting block 521 is embedded in the abutting groove 122 to move the cover horizontally, so as to open the opening of the processing chamber 11.

[0045] As shown in Figure 4 The end surface of the processing chamber 11 away from the opening is further fixed with a vacuum joint 13 in communication with the inner cavity by bolts. The vacuum joint 13 is in communication with a vacuum pump, so as to extract the air in the processing chamber 11, and the battery cell can be processed in a vacuum state.

[0046] The implementation principle of this embodiment is that the abutting block 521 moves to be aligned with the abutting groove 122. Then the switching seat 54 moves towards the abutting block 521 to separate the cover from the processing chamber 11 and insert the abutting block 521 into the abutting groove 122. Then the abutting block 521 moves horizontally to move the cover away from the opening of the processing chamber 11. Then the stacker is used to take out the lower mounting plate 21 and the whole from the processing chamber 11 and replace a new lower mounting plate 21 and the whole. After the cover is closed, the heating film 31 is powered to work to preheat the battery cell. Then the pressing member 27 moves downwards to move the pressing plates 24 towards each other to press the battery cell. After maintaining for fifteen minutes, the heating film 31 continues to heat to preheat, shape and bake the battery cell to complete the processing.

[0047] Embodiment 2, asFigure 7 As shown, the difference from Example 1 is that a voltage-stabilizing mechanism 6 for maintaining pressure on the battery cells is also provided in the processing chamber 11. The voltage-stabilizing mechanism 6 is provided on both sides of the pressure plate 24. The voltage-stabilizing mechanism 6 includes a plurality of vertically arranged voltage-stabilizing members 61, connecting rods 62 connecting the voltage-stabilizing members 61, and a voltage-stabilizing driving member 63 for driving the connecting rods 62 to move horizontally. The voltage-stabilizing members 61 abutting against adjacent pressure plates 24 are staggered so as not to be located in the same vertical direction. The connecting rods 62 are provided vertically, and their upper and lower ends are connected to the processing chamber 11 via guide rails 51. In this embodiment, the voltage-stabilizing driving member 63 is a hydraulic cylinder. The cylinder body of the hydraulic cylinder is fixed to the outside of the processing chamber 11 with bolts, and the piston rod of the hydraulic cylinder is passed through the processing chamber 11. A bellows 64 is also sealed and fixed on the inner wall of the processing chamber 11. The end of the bellows 64 close to the voltage-stabilizing drive component 63 is open. The free end of the voltage-stabilizing drive component 63 is passed through the bellows 64 and is threadedly engaged with the end of the bellows 64 away from the voltage-stabilizing drive component 63. The end of the bellows 64 away from the voltage-stabilizing drive component 63 is fixed to the connecting rod 62 with bolts.

[0048] like Figure 8 As shown, the voltage stabilizer 61 includes a fixed portion 611 fixed to the connecting rod 62 with bolts, a movable portion 612 slidably disposed on the connecting rod 62, and an adjusting member 613 that defines the position of the movable portion 612. The adjusting member 613 is threaded through the fixed portion 611 and engages with the fixed portion 611. The lower end of the adjusting member 613 is rotatably connected to the movable portion 612. The movable portion 612 is vertically arranged, and its end near the pressure plate 24 gradually moves away from the pressure plate 24 from top to bottom. A guide slope 614 is provided on the end surface of the movable portion 612 near the pressure plate 24. The lower end of the guide slope 614 is inclined in a direction away from the pressure plate 24. The guide slope 614 can abut against the pressure plate 24, thereby driving the pressure plate 24 to the lower end of the movable portion 612. The movable portion 612 applies force to the pressure plates 24 to maintain a consistent spacing between adjacent pressure plates 24, thereby maintaining a consistent pressure on the battery cells.

[0049] To ensure that the pressure exerted by the pressing plate 24 on the battery cells below remains constant after the pressing plate 24 is subjected to pressure from the movable portion 612 and the pressure from the adjacent pressing plate 24, a support portion 315 is welded to the lower end of the movable portion 612. The support portion 315 is arranged horizontally, and a space is left between the support portion 315 and the movable portion 612. When the lower end of the movable portion 612 abuts against the top of the pressing plate 24, the upper end of the support portion 315 can abut against the lower end of the pressing plate 24, thereby defining the position of the pressing plate 24. After the position of each pressing plate 24 is defined, the spacing between adjacent pressing plates 24 can remain equal, thereby maintaining a constant pressure on the battery cells on the pressing plate 24.

[0050] The implementation principle of the embodiment is that after the pressing plate 24 is lowered to a certain distance, the movable part 612 moves towards the pressing plate 24, so that the pressing plate 24 is driven by the guide slope 614 to move below the movable part 612, and the spacing between the adjacent pressing plates 24 is kept consistent.

[0051] The embodiments of the specific implementation are the preferred embodiments of the application, but do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A lithium battery cell preheating, shaping, and baking all-in-one machine, characterized in that: The invention comprises a frame (1), a processing chamber (11) capable of being sealed and arranged on the frame (1), a cabinet door (12) for closing the processing chamber (11), and a pressure mold (2) arranged in the processing chamber (11), wherein the pressure mold (2) comprises a plurality of vertically arranged pressure plates (24), a guide rod (25) passing through the pressure plates (24), and an elastic member (26) arranged between adjacent pressure plates (24), and the processing chamber (11) is further provided with a pressure member (27) for driving the uppermost pressure plate (24) to move downward, the guide rod (25) The processing chamber (11) is connected to the processing chamber (11), the pressure plate (24) is slidably arranged on the guide rod (25), and the processing chamber (11) is also provided with a heating mechanism (3), the heating mechanism (3) includes a heating film (31) respectively arranged in the pressure plate (24), a plurality of connection probes (32) arranged above the pressure plate (24), a connection contact (33) arranged below the pressure plate (24) and an energized probe (34) arranged at the bottom of the processing chamber (11), and the connection probe (32) and the connection contact (33) located on the same pressure plate (24) are connected to the processing chamber (11). The connecting contacts (33) are all electrically connected to the heating film (31) on the pressure plate (24) where they are located, and the connecting contact (33) at the bottom is connected to the energized probe (34); a voltage stabilizing mechanism (6) for limiting the spacing between adjacent pressure plates (24) is provided in the processing chamber (11), and the voltage stabilizing mechanism (6) is respectively provided on both sides of the pressure plate (24), and the voltage stabilizing mechanism (6) includes a plurality of voltage stabilizing members (61), a connecting rod (62) connecting the plurality of voltage stabilizing members (61) and a voltage stabilizing driving member (63) for driving the voltage stabilizing member (61) to move horizontally, and the voltage stabilizing mechanism (6) is provided on the two sides of the pressure plate (24). The lower end of the member (61) is connected to the upper end of the pressure plate (24); the pressure stabilizing member (61) includes an adjusting member (613) fixed to the connecting fixed portion (611), a screw threaded member (611) and a movable portion (612) abutting against the pressure plate (24); the movable portion (612) is slidably arranged on the connecting rod (62); the lower end of the adjusting member (613) is connected to the movable portion (612); the end surface of the movable portion (612) close to the pressure plate (24) is provided with a guide inclined surface (614); the lower end of the guide inclined surface (614) is inclined in a direction away from the pressure plate (24); The lower end of the movable portion (612) abuts against the upper end of the pressure plate (24); a supporting portion (315) is also fixed to the lower end of the movable portion (612), and a space for clamping the pressure plate (24) is provided between the lower end surface of the movable portion (612) and the upper end surface of the supporting portion (315), and the lower end of the pressure plate (24) abuts against the upper end surface of the supporting portion (315). ​ 2. The lithium battery cell preheating, shaping, and baking all-in-one machine of claim 1, wherein: The pressing mold (2) comprises a lower mounting plate (21), an upper mounting plate (22) and a mounting rod (23) fixed to the lower mounting plate (21), the guide rod (25) is fixed between the upper mounting plate (22) and the lower mounting plate (21), the lower end of the lower mounting plate (21) is provided with a current-carrying contact (35) for connecting with a current-carrying probe (34), the current-carrying contact (35) is connected to the connecting contact (33) of the lowermost pressing plate (24), the lower mounting plate (21) abuts the inner cavity ground of the processing chamber (11), and the driving end of the pressing piece (27) penetrates through the upper mounting plate (22) and abuts the upper end of the uppermost pressing plate (24).

3. The lithium battery cell preheating, shaping, and baking all-in-one machine of claim 2, wherein: The pressing piece (27) comprises a pressing driving piece (271) fixed to the upper end of the processing chamber (11), an extension rod (272) arranged in the processing chamber (11) and a corrugated sleeve (273) sleeved outside the extension rod (272), the upper end of the corrugated sleeve (273) is sealingly connected with the processing chamber (11), the lower end of the corrugated sleeve (273) is sealingly connected with the lower end of the side wall of the extension rod (272), the free end of the pressing driving piece (271) is fixed with the upper end of the extension rod (272), and the lower end of the extension rod (272) penetrates through the upper mounting plate (22) and abuts the upper end of the uppermost pressing plate (24).

4. The lithium battery cell preheating, shaping, and baking all-in-one machine of claim 2, wherein: A plurality of limiting pieces (4) for limiting the position of the lower mounting plate (21) are further arranged in the processing chamber (11), the limiting piece (4) comprises a limiting seat (41) and a limiting wheel (42) rotatably connected to the limiting seat (41), the limiting wheel (42) is used for abutting the lower mounting plate (21), and the limiting piece (4) is arranged on both sides of the removal direction of the lower mounting plate (21).

5. The lithium battery cell preheating, shaping, and baking all-in-one machine of claim 1, wherein: The frame body (1) is further provided with an opening and closing mechanism (5) for driving the cabinet door (12) to move horizontally, the opening and closing mechanism (5) comprises a guide rail (51), an opening piece (52) for pushing the cabinet door (12) to move horizontally along the guide rail (51), and a closing piece (53) for driving the cabinet door (12) to move towards the processing chamber (11), a plurality of accommodation grooves (511) are formed in the guide rail (51), a switching seat (54) is slidably arranged in the accommodation groove (511), two guide grooves (541) are formed in the switching seat (54) and communicate with the guide rail (51), the driving end of the closing piece (53) is connected with the switching seat (54), the lower end of the cabinet door (12) is provided with a roller (121) for sliding in the guide rail (51) and the guide groove (541), a abutting groove (122) is formed in the side wall of the cabinet door (12) away from the processing chamber (11), an abutting block (521) is arranged on the free end of the opening piece (52), and the abutting block (521) is used for being inserted into the abutting groove (122) to drive the cabinet door (12) to move along the guide rail (51). 6.The lithium battery cell preheating, shaping, and baking all-in-one machine of claim 1, wherein: The end of the processing chamber (11) away from the opening is provided with a vacuum connector (13), and the vacuum connector (13) is used for being connected with a vacuum pump.

Images