Hot pressing device for lithium battery production

Abstract

The utility model discloses a hot pressing device for lithium battery production, which is characterized in that a pressure-bearing seat is arranged on a working table through a first driving mechanism, the first driving mechanism is used for driving the pressure-bearing seat to perform translation adjustment along the length direction of the working table, a lower pressing seat is arranged above the working table through a second driving mechanism, and a plurality of hot pressing blocks are arranged on the lower surface of the lower pressing seat at intervals; the second driving mechanism is used for pushing the downward pressing base to move downwards to achieve the downward pressing action, and a plurality of press-fitting grooves for the hot pressing blocks to be clamped in one by one are formed in the upper portion of the pressure bearing base at intervals. According to the utility model, the lifting rod is pushed and the push rod is driven to move upwards under the extrusion action of the inclined surface of the inclined surface extrusion seat, and the top end of the push rod protrudes to the inner wall of the press-fitting groove until materials are pushed out of the press-fitting groove, so that the blanking is convenient; the action of pushing the materials out of the press-fitting groove depends on the inclined surface of the inclined surface extrusion seat to extrude the lifting rod and drive the push rod to move upwards; and the linkage effect is achieved, so that the material pushing action is achieved without additional driving, and the investment of equipment cost is saved.

Description

Technical Field

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

[0002] The lithium battery hot pressing processing device is a device used for manufacturing lithium battery electrodes. By heating and pressing, the electrode materials are pressed together to improve the performance and stability of the battery. The device usually includes a heating plate, a pressure system and a control unit. Through precise temperature and pressure control, it ensures that the electrode materials form a uniform electrode layer under the best conditions, thereby improving the energy density and service life of the lithium battery.

[0003] At present, the traditional hot pressing devices for lithium battery production on the market generally put the workpieces to be hot pressed into the workpiece grooves, and then use tweezers to take out the workpieces from the grooves one by one after hot pressing processing. The blanking is extremely inconvenient and affects the improvement of production efficiency. In addition, some existing hot pressing devices for lithium battery production with auxiliary blanking functions rely on electric drive, which increases the investment in equipment costs. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a hot pressing device for lithium battery production.

[0005] The utility model provides the following technical solution: A hot pressing device for lithium battery production, including a workbench. A bearing seat is arranged on the workbench through a first driving mechanism. The first driving mechanism is used to drive the bearing seat to perform translational adjustment along the length direction of the workbench. Above the workbench, a pressing seat is arranged through a second driving mechanism. A plurality of hot pressing blocks are arranged at intervals on the lower surface of the pressing seat. The second driving mechanism is used to push the pressing seat downward to achieve a pressing action. A plurality of pressing grooves for the hot pressing blocks to be inserted into one by one are arranged at intervals above the bearing seat. Inside the bearing seat, a sliding groove extending along the width direction of the workbench is provided below the pressing grooves. Both ends of the sliding groove penetrate through the two side ends of the bearing seat respectively. On the bottom wall of each pressing groove, a guide hole extending vertically downward and communicating with the sliding groove is provided. An elevating rod that can slide up and down is installed in the sliding groove. Both ends of the elevating rod extend to the two sides of the bearing seat respectively. Each guide hole is vertically slidably installed with a top push rod. The bottom end of each top push rod extends into the sliding groove and is fixedly connected with the elevating rod. On one side of the upper surface of the workbench, two inclined surface pressing seats are symmetrically arranged. The top slopes of the two inclined surface pressing seats are respectively in pressing cooperation with the two ends of the elevating rod. When the elevating rod is not pressed, the surface of the top of the top push rod is flush with the bottom wall surface of the pressing groove. When the elevating rod is pressed and moves upward to the limit position, the surface of the top of the top push rod is higher than the upper surface of the bearing seat.

[0006] Preferably, a downwardly inclined material guide plate is jointly installed on the two inclined surface extrusion seats and on one side of the workbench. Side baffles are respectively fixed on both sides of the upper surface of the material guide plate. A material pushing mechanism is provided on the side of the pressure bearing seat, and the material pushing mechanism is used to push the material above the pressure bearing seat onto the material guide plate.

[0007] Preferably, the material pushing mechanism includes a second electric push cylinder, an L-shaped connecting arm and a push plate. The second electric push cylinder is fixed on the side of the pressure bearing seat and extends horizontally. One end of the L-shaped connecting arm is fixed to the end of the telescopic rod of the second electric push cylinder, and the other end is fixed with a push plate. The bottom of the push plate can slide along the upper surface of the pressure bearing seat in a fitting manner.

[0008] Preferably, the first driving mechanism includes a guide seat, a threaded rod, a driving motor and a nut seat. The guide seat is fixed on the workbench and extends along the length direction of the workbench. A guide groove is provided on the guide seat. The threaded rod is rotatably installed in the guide groove. The driving motor is fixed on the side of the guide seat, and its output shaft is fixedly connected to one end of the threaded rod. The nut seat is installed in the guide groove in a limited sliding manner and is threadedly sleeved on the threaded rod. The pressure bearing seat is fixed on the top of the nut seat.

[0009] Preferably, guide rails are symmetrically fixed on both sides of the upper surface of the workbench where the guide seat is located. Sliding seats are slidably installed on both guide rails, and the tops of the two sliding seats are fixed to the lower surface of the pressure bearing seat.

[0010] Preferably, the second driving mechanism includes a pair of upright frames, a cantilever and a first electric push cylinder. The two upright frames are fixed on both sides of the upper surface of the workbench and both extend vertically upward. The cantilever is fixed to the tops of the two upright frames. The first electric push cylinder is vertically fixed on the top of the cantilever, and its telescopic rod extends through to the lower part of the cantilever and is fixed with a downward pressure seat.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) By the operation of the first driving mechanism, the pressure bearing seat is driven to move towards the inclined surface extrusion seat until both ends of the lifting rod are respectively extruded by the slopes of the inclined surface extrusion seat. Under the action of the inclined surface extrusion of the inclined surface extrusion seat, the lifting rod is pushed and drives the top push rod to move upward. The top of the top push rod protrudes to the inner wall of the press-fitting groove until the material is pushed out of the press-fitting groove, thus facilitating the feeding.

[0013] (2) The action of pushing the material out of the press-fitting groove in the utility model depends on the inclined surface of the inclined surface extrusion seat extruding the lifting rod and driving the top push rod to move upward, which has a linkage effect. Therefore, there is no need to configure an additional drive to realize the material pushing action, saving the investment in equipment costs. At the same time, it is beneficial to the miniaturization of the overall area of the device, with a reasonable structural layout and high practicability.

[0014] (3) After the present utility model pushes the material out of the press-fitting groove, the second electric push cylinder retracts to work. Under the connection action of the L-shaped connecting arm, the push plate is driven to push the workpiece that has been hot-pressed above the pressure-bearing seat into the guide plate. A material box is placed at the downstream end of the guide plate, and the guide plate can convey the material into the material box, realizing automatic blanking and collection of the material after hot pressing, with higher efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a detailed structural schematic diagram of the second driving mechanism in the present utility model;

[0017] Figure 3 is a partial structural schematic diagram of the upper surface of the workbench in the present utility model;

[0018] Figure 4 is a partial structural schematic diagram of the surface of the pressure-bearing seat in the present utility model;

[0019] Figure 5 is a sectional structural schematic diagram of the pressure-bearing seat in the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] As Figures 1 to 5 shown, a hot pressing device for lithium battery production includes a stirring bin 1, a fixed steel barrel 2, a hydraulic motor 3, a rotating main shaft 4, a fixed seat 5, a first mounting plate 6, a scraper 7, a second mounting plate 8, a motor 9, a stirring rod 10, a side plate 11, a rotating shaft 12, a turning plate 13, a connecting shaft 14, a transmission mechanism 15, an inner groove 16, a transmission shaft 17, a first bevel gear 18, a second bevel gear 19, a pulley group 20, a dust collection mechanism 21, a support base 22, a fan 23, a corrugated pipe 24, a dust collection cloth bag 25, an annular pipe 26, a dust suction pipe 27, a dust suction hood 28, an electric push rod 29, a filter screen 30, and a protective cover 31.

[0022] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] As Figures 1 to 5 shown, a pressure-bearing seat 2 is arranged on a workbench 1 through a first driving mechanism 3, and a pressing seat 5 is arranged above the workbench 1 through a second driving mechanism 6. A plurality of hot pressing blocks 51 are arranged at intervals on the lower surface of the pressing seat 5. A heating module is provided in each hot pressing block 51. The heating module can adopt an electric heating device and can heat the hot pressing blocks 51 during work to achieve hot pressing processing. A plurality of pressing grooves 21 for the hot pressing blocks 51 to be inserted into one by one are arranged at intervals above the pressure-bearing seat 2. During hot pressing processing, first, the workpiece to be hot-pressed is loaded into the pressing grooves 21, and then the first driving mechanism 3 works to drive the pressure-bearing seat 2 to translate until the positions of the hot pressing blocks 51 and the pressing grooves 21 correspond one by one. Then, the second driving mechanism 6 works to push the pressing seat 5 downward, thereby driving the heated hot pressing blocks 51 to be pressed into the pressing grooves 21 to perform hot pressing processing on the workpiece.

[0025] A sliding groove 22 extending in the width direction of the workbench 1 is provided below the press-fitting groove 21 in the pressure-bearing seat 2. Both ends of the sliding groove 22 penetrate through the two side ends of the pressure-bearing seat 2 respectively. A guide hole 23 extending vertically downward and communicating with the sliding groove 22 is provided on the inner bottom wall of each press-fitting groove 21. A lift rod 24 that can slide up and down is installed in the sliding groove 22. Both ends of the lift rod 24 extend to the two sides of the pressure-bearing seat 2 respectively. A top push rod 25 is vertically and slidably installed in each guide hole 23. The bottom end of each top push rod 25 extends into the sliding groove 22 and is fixedly connected to the lift rod 24. Two inclined surface extrusion seats 4 are symmetrically arranged on one side of the upper surface of the workbench 1. The top slopes of the two inclined surface extrusion seats 4 are in extrusion cooperation with the two ends of the lift rod 24 respectively. After heating is completed, the second driving mechanism 6 works to drive the lower pressing seat 5 and the hot pressing block 51 to move upward and reset. Subsequently, the first driving mechanism 3 works to drive the pressure-bearing seat 2 to move towards the inclined surface extrusion seat 4 until the two ends of the lift rod 24 are respectively extruded by the slopes of the inclined surface extrusion seat 4. Under the action of the inclined surface extrusion of the inclined surface extrusion seat 4, the lift rod 24 is pushed and drives the top push rod 25 to move upward. The top end of the top push rod 25 protrudes to the inner wall of the press-fitting groove 21 until the material is pushed out of the press-fitting groove 21, thus facilitating the blanking.

[0026] In addition, the action of pushing the material out of the press-fitting groove 21 depends on the inclined surface of the inclined surface extrusion seat 4 extruding the lift rod 24 and driving the top push rod 25 to move upward, which has a linkage effect. Therefore, there is no need to configure an additional drive to realize the pushing action, saving the investment in equipment costs. At the same time, it is beneficial to the miniaturization of the overall area of the device, with a reasonable structural layout and high practicability.

[0027] In addition, when the lift rod 24 is not extruded, under the action of gravity, the lift rod 24 falls to the bottom of the sliding groove 22 and drives the top push rod 25 to retract downward into the guide hole 23. At this time, the surface of the top end of the top push rod 25 is flush with the inner bottom wall surface of the press-fitting groove 21, ensuring the flatness of the inner bottom wall of the press-fitting groove 21 and preventing the surface of the material from being indented when being hot-pressed. When the lift rod 24 is extruded and moves upward to the limit position, the surface of the top end of the top push rod 25 is higher than the upper surface of the pressure-bearing seat 2, ensuring that the material can be completely pushed out of the press-fitting groove 21.

[0028] A downwardly inclined guide plate 8 is jointly installed on the two inclined surface extrusion seats 4 and on one side of the workbench 1. Side baffles 81 are respectively fixed on both sides of the upper surface of the guide plate 8. A material pushing mechanism 7 is provided on the side of the pressure-bearing seat 2. The material pushing mechanism 7 is used to push the material above the pressure-bearing seat 2 onto the guide plate 8.

[0029] The pushing mechanism 7 includes a second electric push cylinder 71, an L-shaped connecting arm 72 and a push plate 73. The second electric push cylinder 71 is fixed to the side of the pressure seat 2 and extends horizontally. One end of the L-shaped connecting arm 72 is fixed to the end of the telescopic rod of the second electric push cylinder 71, and the other end is fixed with a push plate 73. The bottom of the push plate 73 can slide along the upper surface of the pressure seat 2. After the material is pushed out of the pressing groove 21, the second electric push cylinder 71 retracts, and under the connection of the L-shaped connecting arm 72, the push plate 73 is driven to push the workpiece that has been hot-pressed above the pressure seat 2 into the guide plate 8. A material frame is placed at the downstream end of the guide plate 8. The guide plate 8 can be used to guide the material into the material frame, so that automatic unloading and collection of the material after hot pressing can be achieved, which is more efficient.

[0030] In addition, after the material is pushed, the second electric push cylinder 71 extends to drive the push plate 73 to move to the side of the pressure seat 2 to avoid obstruction to the lower pressure seat 5 and the hot pressing block 51 during hot pressing.

[0031] The first driving mechanism 3 is used to drive the pressure seat 2 to perform translational adjustment along the length direction of the workbench 1, and specifically includes a guide seat 31, a threaded rod 32, a driving motor 33 and a nut seat 34. The guide seat 31 is fixed on the workbench 1 and extends along the length direction of the workbench 1. A guide groove 311 is provided on the guide seat 31, and the threaded rod 32 is rotatably installed in the guide groove 311. The driving motor 33 is fixed on the side of the guide seat 31, and its output shaft is fixedly connected to one end of the threaded rod 32. The nut seat 34 is limitedly slidably installed in the guide groove 311 and is threadedly mounted on the threaded rod 32. The pressure seat 2 is fixed on the top of the nut seat 34 and works through the driving motor 33. Its output shaft drives the threaded rod 32 to rotate. The rotating threaded rod 32 can threadably drive the nut seat 34 and drive the pressure seat 2 to translate, thereby providing drive for the position adjustment of the pressure seat 2.

[0032] The upper surface of the workbench 1 is symmetrically fixed with guide rails 11 on both sides of the guide seat 31, and sliding seats 12 are slidably installed on the two guide rails 11. The tops of the two sliding seats 12 are fixed to the lower surface of the pressure-bearing seat 2. The sliding cooperation of the guide rails 11 and the sliding seats 12 on both sides can provide a limiting guiding effect for the movement of the pressure-bearing seat 2 to ensure the smoothness of the movement of the pressure-bearing seat 2, and provide a pressure-bearing support effect on both sides of the bottom of the pressure-bearing seat 2 to ensure the stability of the pressure-bearing seat 2 when under pressure, killing two birds with one stone.

[0033] The second driving mechanism 6 is used to push the lower pressing seat 5 downward to achieve the pressing action. Specifically, it includes a pair of upright frames 61, a cantilever 62, and a first electric push cylinder 63. The two upright frames 61 are fixed on both sides of the upper surface of the workbench 1 and extend vertically upward. The cantilever 62 is fixed at the tops of the two upright frames 61. The first electric push cylinder 63 is vertically fixed on the top of the cantilever 62, and its telescopic rod extends through and reaches below the cantilever 62, and is fixed with the lower pressing seat 5. By the first electric push cylinder 63 working in an extended state, its telescopic rod can push the lower pressing seat 5 and the hot pressing block 51 downward to achieve the pressing action. By the first electric push cylinder 63 working with its telescopic rod retracted, it can drive the lower pressing seat 5 and the hot pressing block 51 upward to achieve the reset.

[0034] It should be explained that the control method of this application document is automatically controlled by a controller. The control circuit of the controller is prior art, and the control program can be realized by simple programming by those skilled in the art, which belongs to the common general knowledge in this field. The present utility model has not made improvements, and the mains power is used for power supply in this application, so the control method will not be elaborated in detail.

[0035] The above embodiments are only the preferred embodiments of the present utility model, and cannot be used to limit the scope of rights of the present utility model. Therefore, the modifications, equivalent changes, improvements, etc. made according to the scope of the patent application of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A hot pressing device for producing lithium batteries, comprising a workbench (1), characterized in that: A pressure seat (2) is arranged on the workbench (1) through a first driving mechanism (3), and the first driving mechanism (3) is used to drive the pressure seat (2) to perform translational adjustment along the length direction of the workbench (1); a lower pressure seat (5) is arranged above the workbench (1) through a second driving mechanism (6), and a plurality of hot pressing blocks (51) are arranged at intervals on the lower surface of the lower pressure seat (5), and the second driving mechanism (6) is used to push the lower pressure seat (5) to move downward to realize a downward pressing action; a plurality of press-fitting grooves (21) are arranged at intervals above the pressure seat (2) for the hot pressing blocks (51) to be inserted one by one, and a sliding groove (22) extending along the width direction of the workbench (1) is provided in the pressure seat (2) below the press-fitting groove (21), and the two ends of the sliding groove (22) respectively pass through the two side ends of the pressure seat (2), and the inner bottom wall of each press-fitting groove (21) is provided with a vertically downwardly extending groove connected with the sliding groove (22). A guide hole (23) communicated with the movable groove (22); a lifting rod (24) that can slide up and down is installed in the sliding groove (22), and the two ends of the lifting rod (24) extend to the two sides of the pressure-bearing seat (2) respectively, and each of the guide holes (23) is vertically slidably installed with a push rod (25), and the bottom end of each push rod (25) extends into the sliding groove (22) and is fixedly connected to the lifting rod (24); two inclined surface extrusion seats (4) are symmetrically arranged on one side of the upper surface of the workbench (1), and the top slopes of the two inclined surface extrusion seats (4) correspond to the two ends of the lifting rod (24) for extrusion fit; when the lifting rod (24) is not squeezed, the top surface of the push rod (25) remains flush with the inner bottom wall surface of the press-fitting groove (21); when the lifting rod (24) is squeezed and moves upward to the limit position, the top surface of the push rod (25) is higher than the upper surface of the pressure-bearing seat (2).

2. A hot pressing device for producing lithium batteries according to claim 1, characterized in that: A downwardly inclined material guide plate (8) is installed on the two inclined extrusion seats (4) and located on one side of the workbench (1), and side baffles (81) are respectively fixed on both sides of the upper surface of the material guide plate (8); a pushing mechanism (7) is provided on the side of the pressure-bearing seat (2), and the pushing mechanism (7) is used to push the material above the pressure-bearing seat (2) onto the material guide plate (8).

3. A hot pressing device for producing lithium batteries according to claim 2, characterized in that: The pushing mechanism (7) comprises a second electric push cylinder (71), an L-shaped connecting arm (72) and a push plate (73); the second electric push cylinder (71) is fixed to the side of the pressure-bearing seat (2) and extends horizontally, one end of the L-shaped connecting arm (72) is fixed to the end of the telescopic rod of the second electric push cylinder (71), and the other end is fixed to the push plate (73); the bottom of the push plate (73) can slide along the upper surface of the pressure-bearing seat (2).

4. A hot pressing device for producing lithium batteries according to claim 1, characterized in that: The first driving mechanism (3) comprises a guide seat (31), a threaded rod (32), a driving motor (33) and a nut seat (34); the guide seat (31) is fixed on the workbench (1) and extends along the length direction of the workbench (1); a guide groove (311) is provided on the guide seat (31), and the threaded rod (32) is rotatably mounted in the guide groove (311); the driving motor (33) is fixed to the side of the guide seat (31), and its output shaft is fixedly connected to one end of the threaded rod (32); the nut seat (34) is limitedly slidably mounted in the guide groove (311), and is thread-matchedly mounted on the threaded rod (32); the pressure seat (2) is fixed on the top of the nut seat (34).

5. A hot pressing device for producing lithium batteries according to claim 4, characterized in that: The upper surface of the workbench (1) is symmetrically fixed with guide rails (11) on both sides of the guide seat (31), and sliding seats (12) are slidably mounted on the two guide rails (11), and the tops of the two sliding seats (12) are fixed to the lower surface of the pressure-bearing seat (2).

6. A hot pressing device for producing lithium batteries according to claim 1, characterized in that: The second driving mechanism (6) comprises a pair of upright frames (61), a cantilever (62) and a first electric push cylinder (63); the two upright frames (61) are fixed on both sides of the upper surface of the workbench (1) and both extend vertically upward, and the cantilever (62) is fixed on the top of the two upright frames (61); the first electric push cylinder (63) is vertically fixed on the top of the cantilever (62), and its telescopic rod extends through and extends to the bottom of the cantilever (62), and is fixed with the lower pressure seat (5).

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