Battery hot-pressing formation machine

Abstract

The utility model discloses a battery hot-pressing formation machine which comprises a machine table, a hot-pressing assembly, a driving assembly and an adjusting block, the two ends of a rack of the machine table extend upwards to form bearing plates, and a horizontally-arranged guide rod is arranged between the bearing plates. The hot-pressing assembly comprises a plurality of hot-pressing plates and batteries which are alternately arranged at intervals, and the two ends of the hot-pressing plates are slidably connected to the guide rods in a sleeving mode; the driving assembly comprises a motor, a speed reducer, a transmission assembly, two ball screws and a pushing plate, the motor is in driving connection with the speed reducer, the speed reducer is in transmission connection with the ball screws through the transmission assembly, the two ball screws are in threaded connection with the two sides of the pushing plate respectively, and the two ends of the pushing plate are slidably connected to the guide rods in a sleeving mode respectively; chains are connected between the bearing plate and the hot pressing plate at the foremost end, between the hot pressing plates and the pushing plate and between every two adjacent hot pressing plates; and the adjusting block is in threaded connection with the ball screw, so that the position of the pushing plate can be adjusted. According to the technical scheme, the uniformity of battery pressure can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery forming machines, in particular to a battery hot pressing forming machine. Background Art

[0002] During the formation process, the battery generally needs to be in a high temperature and high pressure state. In the prior art, the hot pressing plate is powered on and heated, and multiple hot pressing plates are compressed using a cylinder, so that the battery located between the two hot pressing plates can be heated and pressurized at the same time; and a circuit board is arranged on one side of the hot pressing plate, so that the electrode sheet is electrically connected to the circuit board while the battery is heated and pressurized, and then powered on for formation.

[0003] The battery hot pressing forming machine applies pressure to the battery by driving the push plate to compress the hot pressing plate. The push plate needs to remain parallel to each hot pressing plate to make the pressure applied to the battery more uniform. However, the push plate is prone to non-parallelism during continuous use. It is difficult to adjust the parallelism between the push plate and the hot pressing plate in the existing battery hot pressing forming machine, which easily causes the pressure applied to the battery by the hot pressing plate to be uneven. Utility Model Content

[0004] The main purpose of the utility model is to provide a battery hot pressing forming machine, aiming to solve the problem of uneven pressure applied to the battery by a hot pressing plate.

[0005] To achieve the above-mentioned purpose, the battery hot pressing forming machine proposed by the utility model comprises:

[0006] A machine platform, wherein two ends of the frame of the machine platform extend upwardly with bearing plates, and horizontally arranged guide rods are provided between the bearing plates;

[0007] A hot pressing assembly, comprising a plurality of hot pressing plates and batteries arranged alternately and spaced apart, wherein both ends of the hot pressing plates are respectively slidably sleeved on the guide rods;

[0008] A driving assembly, comprising a motor, a reducer, a transmission assembly, two ball screws and a push plate, wherein the motor is connected to the reducer, the reducer is connected to the ball screw through the transmission assembly, the two ball screws are respectively threadedly connected to the two sides of the push plate, the two ends of the push plate are respectively slidably sleeved on the guide rod, and are located between the bearing plate and the frontmost hot pressing plate, and chains are connected between the hot pressing plate and the push plate and between the two adjacent hot pressing plates;

[0009] The adjusting block is rotatably mounted on both sides of the push plate. The adjusting block is threadedly connected to the ball screw. The rotation of the adjusting block can drive the ball screw to rotate, so that the position of the push plate can be adjusted.

[0010] Further, an adjusting plate is installed on the pushing plate. The top and bottom of the adjusting plate are respectively connected with a first adjusting screw rod and a second adjusting screw rod. The first adjusting screw rod and the second adjusting screw rod can press against the adjusting block to make it rotate, thereby driving the ball screw to rotate and making the pushing plate move.

[0011] Further, the adjusting block is provided with a protruding portion, and both sides of the protruding portion are respectively pressed by the first adjusting screw rod and the second adjusting screw rod.

[0012] Further, the transmission assembly includes a first helical gear, a second helical gear, a third helical gear, a fourth helical gear, a fifth helical gear, a sixth helical gear, a seventh helical gear, a first rotating shaft and a second rotating shaft;

[0013] The speed reducer is drivingly connected to the first helical gear. The first helical gear meshes with the second helical gear and the third helical gear. The second helical gear is connected to the fourth helical gear through the first rotating shaft. The third helical gear is connected to the fifth helical gear through the second rotating shaft. The fourth helical gear meshes with the sixth helical gear. The fifth helical gear meshes with the seventh helical gear. Both the sixth helical gear and the seventh helical gear are connected with the ball screw.

[0014] Further, a pressure sensor is installed on the last bearing plate. A force-bearing structure is arranged between the last bearing plate and the last hot pressing plate. The pressure sensor can be squeezed by the force-bearing structure to detect the pressure, and the pressure sensor is connected to the motor.

[0015] Further, the force-bearing structure includes a force-bearing plate assembly, a pressing plate assembly and a plurality of elastic members arranged between the force-bearing plate assembly and the pressing plate assembly. The force-bearing plate assembly is close to the hot pressing assembly, and the pressing plate assembly is close to the pressure sensor.

[0016] Further, the elastic member is a spring.

[0017] Further, the battery hot pressing and forming machine further includes a plurality of adjusting moving blocks. The adjusting moving blocks are movably installed on the bearing plate. A bearing is embedded inside the adjusting moving block, and the bearing is sleeved on the outer periphery of the first rotating shaft or the second rotating shaft.

[0018] Further, a plurality of mounting screw holes are formed in the bearing plate on the side close to the pushing plate. An adjusting hole is provided on the adjusting moving block. The adjusting moving block is fixed on the bearing plate by screwing a bolt through the adjusting hole and into the mounting screw hole.

[0019] Furthermore, the adjusting moving blocks are arranged near the second helical gear, the third helical gear, the fourth helical gear, and the fifth helical gear.

[0020] Compared with the prior art, when the position of the pushing plate deviates, the staff can use tools or other methods to rotate the adjusting block, drive the ball screw to rotate, and the rotation of the ball screw enables one side of the pushing plate to move. The staff can adjust the parallelism between the pushing plate and the hot pressing plate by adjusting the left and right sides of the pushing plate, ensuring that the force exerted by the pushing plate on the hot pressing plate is uniform, and further ensuring that the pressure on the battery between each hot pressing plate is uniform. This adjustment method is simple, convenient, and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the battery hot pressing and forming machine of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the battery hot pressing and forming machine of the present utility model without the machine platform;

[0023] Figure 3 is a schematic structural diagram of the battery hot pressing and forming machine of the present utility model without the machine platform and the hot pressing assembly;

[0024] Figure 4 is Figure 2 a top view of;

[0025] Figure 5 is a schematic structural diagram of the ball screw, the pushing plate, the adjusting block, the adjusting plate, the first adjusting screw, and the second adjusting screw of the battery hot pressing and forming machine of the present utility model;

[0026] Figure 6 is a schematic structural diagram of the adjusting block of the battery hot pressing and forming machine of the present utility model;

[0027] Figure 7 is a schematic structural diagram of the pressure sensor detection part of the battery hot pressing and forming machine of the present utility model;

[0028] Figure 8 is a schematic structural diagram of the adjusting moving block of the battery hot pressing and forming machine of the present utility model.

[0029] Description of the reference numerals in the drawings: 100, machine platform; 110, carrier plate; 200, hot pressing assembly; 210, hot pressing plate; 220, battery; 310, motor; 320, speed reducer; 330, transmission assembly; 340, pushing plate; 350, ball screw; 351, guiding rod; 360, adjusting block; 370, adjusting plate; 380, first adjusting screw; 390, second adjusting screw; 361, protruding part; 331, first helical gear; 332, second helical gear; 333, third helical gear; 334, fourth helical gear; 335, fifth helical gear; 336, sixth helical gear; 337, seventh helical gear; 338, first rotating shaft; 339, second rotating shaft; 400, pressure sensor; 500, stress structure; 510, stress plate assembly; 520, extrusion plate assembly; 530, elastic member; 600, adjusting moving block; 610, adjusting hole; 620, bearing. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1 to 8 , the present invention provides a battery hot pressing and forming machine.

[0032] The battery hot pressing and forming machine includes a machine platform 100, a hot pressing assembly 200, a driving assembly, and an adjusting block 360. The two ends of the frame of the machine platform 100 extend upward to form carrier plates 110, and a horizontally arranged guiding rod 351 is provided between the carrier plates 110; the hot pressing assembly 200 includes a plurality of hot pressing plates 210 and batteries 220 arranged alternately at intervals, and both ends of the hot pressing plates 210 are slidably sleeved on the guiding rod 351 respectively; the driving assembly includes a motor 310, a speed reducer 320, a transmission assembly 330, two ball screws 350, and a pushing plate 340. The motor 310 is drivingly connected to the speed reducer 320, and the speed reducer 320 is drivingly connected to the ball screws 350 through the transmission assembly 330. The two ball screws 350 are respectively threadedly connected to both sides of the pushing plate 340. Both ends of the pushing plate 340 are slidably sleeved on the guiding rod 351 and are located between the carrier plate 110 and the frontmost hot pressing plate 210. A chain is connected between the hot pressing plate 210 and the pushing plate 340 and between two adjacent hot pressing plates 210; the adjusting block 360 is rotatably installed on both sides of the pushing plate 340, the adjusting block 360 is threadedly connected to the ball screw 350, and the rotation of the adjusting block 360 can drive the ball screw 350 to rotate, so that the position of the pushing plate 340 can be adjusted.

[0033] Specifically, the motor 310 can be optionally installed on the bearing plate 110, and the motor 310 can be a servo motor 310 or the like. Please refer to Figures 1 to 4 , before formation, first place the battery 220 between each of the hot pressing plates 210, and connect the battery 220 to the electrodes to facilitate later power-on; then start the motor 310, the motor 310 rotates and drives the transmission assembly 330 through the reduction gear 320 to increase the torque. The transmission assembly 330 drives the ball screws 350 on both sides to rotate, and the ball screws 350 drive the push plate 340 to move along the length direction of the ball screws 350 towards the bearing plate 110 on the other side. At this time, the push plate 340 abuts against the hot pressing plate 210 and pushes the hot pressing plate 210 to move; when continuously driven, all the hot pressing plates 210 are compressed together one by one. Therefore, the battery 220 located between the two hot pressing plates 210 will also be compressed, and a certain pressure is applied to the battery 220 between the hot pressing plates 210. Control the motor 310 to stop. At this time, a certain pressure is continuously applied to the battery 220 between each of the hot pressing plates 210. Then power on the battery 220, and at this time, the battery 220 is formed. When the formation is completed, start the motor 310 to reverse the motor 310, and the motor 310 drives the push plate 340 to move away from the bearing plate 100 at the rear end. Since there is a chain connection between each of the hot pressing plates 210 and the hot pressing plate 210 closest to the push plate 340 is chain-connected to the push plate 340, the retracting movement of the push plate 340 can pull the whole back. At this time, the battery 220 can be unloaded from the battery hot pressing and forming machine, and the battery hot pressing and forming machine can perform the next formation.

[0034] In the embodiment of the present invention, in order to ensure that the acting force of the push plate 340 on the hot pressing plate 210 is uniform, the push plate 340 and the hot pressing plate 210 need to always be parallel. When the position of the push plate 340 is offset, the staff can use tools or other methods to rotate the adjusting block 360, drive the ball screw 350 to rotate, and the rotation of the ball screw 350 enables one side of the push plate 340 to move. The staff can adjust the parallelism between the push plate 340 and the hot pressing plate 210 by adjusting the movement of the left and right sides of the push plate 340, ensure that the acting force of the push plate 340 on the hot pressing plate 210 is uniform, and further ensure that the pressure on the battery 220 between each of the hot pressing plates 210 is uniform. This adjustment method is simple and convenient and easy to implement.

[0035] Please refer to Figure 2 and Figure 5, Further, an adjusting plate 370 is installed on the pushing plate 340. The top and bottom of the adjusting plate 370 are respectively connected with a first adjusting screw 380 and a second adjusting screw 390. The first adjusting screw 380 and the second adjusting screw 390 can press against the adjusting block 360 to make it rotate, thereby driving the ball screw 350 to rotate and causing the pushing plate 340 to move. Specifically, the first adjusting screw 380 and the second adjusting screw 390 pressing against the adjusting block 360 can drive the adjusting block 360 to rotate. With such a setting, when the staff adjusts the parallelism between the pushing plate 340 and the hot pressing plate 210, they can rotate the first adjusting screw 380 and the second adjusting screw 390 to press against the adjusting block 360, causing the adjusting block 360 to generate a rotational movement. The ball screw 350 rotates together with the adjusting block 360. Due to the threaded fit between the ball screw 350 and the pushing plate 340, a displacement movement is generated, realizing the adjustment of the parallelism between the pushing plate 340 and the hot pressing plate 210.

[0036] Please refer to Figure 5 and Figure 6 , Further, the adjusting block 360 is provided with a protruding portion 361, and both sides of the protruding portion 361 are respectively pressed by the first adjusting screw 380 and the second adjusting screw 390. The protruding portion 361 on the adjusting block 360 is used for the first adjusting screw 380 and the second adjusting screw 390 to press against it, so that the first adjusting screw 380 and the second adjusting screw 390 apply pressure to the protruding portion 361, causing the protruding portion 361 to drive the entire adjusting block 360 to generate a rotational movement, thereby realizing the adjustment of the position of the pushing plate 340.

[0037] Please refer to Figures 1 to 3, Further, the transmission assembly 330 includes a first helical gear 331, a second helical gear 332, a third helical gear 333, a fourth helical gear 334, a fifth helical gear 335, a sixth helical gear 336, a seventh helical gear 337, a first rotating shaft 338, and a second rotating shaft 339; the speed reducer 320 is drivingly connected to the first helical gear 331, the first helical gear 331 meshes with the second helical gear 332 and the third helical gear 333, the second helical gear 332 is connected to the fourth helical gear 334 through the first rotating shaft 338, the third helical gear 333 is connected to the fifth helical gear 335 through the second rotating shaft 339, the fourth helical gear 334 meshes with the sixth helical gear 336, the fifth helical gear 335 meshes with the seventh helical gear 337, and ball screws 350 are connected to both the sixth helical gear 336 and the seventh helical gear 337. Specifically, when the motor 310 starts, the speed reducer 320 is driven by the motor 310, the output end of the speed reducer 320 drives the first helical gear 331 to rotate, the first helical gear 331 drives the second helical gear 332 and the third helical gear 333 to rotate. Through the connection of the first rotating shaft 338 and the second rotating shaft 339, the second helical gear 332 drives the fourth helical gear 334 to rotate, the third helical gear 333 drives the fifth helical gear 335 to rotate. Then, the fourth helical gear 334 drives the sixth helical gear 336 to rotate, the fifth helical gear 335 drives the seventh helical gear 337 to rotate. The ball screw 350 connected to the sixth helical gear 336 rotates with the sixth helical gear 336, and the ball screw 350 connected to the seventh helical gear 337 rotates with the seventh helical gear 337. Thus, the push plate 340 is driven by the ball screws 350 on both sides, and the push plate 340 pushes the hot press plate 210 forward to gradually apply pressure to the battery 220. This transmission structure is simple and easy to implement, has a stable structure, and has a smooth power output.

[0038] Please refer to Figure 1 , Figure 3 and Figure 7 , In order to monitor the magnitude of the pressure applied to the battery 220 in real time, further, a pressure sensor 400 is installed on the rearmost bearing plate 110, and a force-bearing structure 500 is provided between the rearmost bearing plate 110 and the rearmost hot press plate 210. The pressure sensor 400 can be squeezed by the force-bearing structure 500 to detect the pressure, and the pressure sensor 400 is connected to the motor 310. When the motor 310 drives the push plate 340 to apply pressure to the hot press plate 210, the pressure value of the pressure applied to the battery 220 can be monitored in real time through the pressure sensor 400, and the magnitude of the pressure value is fed back to the motor 310. The motor 310 can adjust the operating intensity of the rotor according to the feedback value, thereby controlling the magnitude of the pressure value applied to the battery 220.

[0039] Please refer to Figure 1 , Figure 3 and Figure 7, Further, the force-bearing structure 500 includes a force-bearing plate assembly 510, a pressing plate assembly 520, and a plurality of elastic members 530 disposed between the force-bearing plate assembly 510 and the pressing plate assembly 520. The force-bearing plate assembly 510 is close to the hot pressing assembly 200, and the pressing plate assembly 520 is close to the pressure sensor 400. With such a setting, when the pushing plate 340 pushes each hot pressing plate 210 to compress, the pressure is transmitted to the force-bearing plate assembly 510. At the same time, the elastic members 530 buffer the pressure and evenly transmit the pressure value to the pressing plate assembly 520. The pressing plate assembly 520 applies pressure to the pressure sensor 400, and the pressure sensor 400 detects the pressure value. In this way, by providing the elastic members 530 to buffer the pressure, it is prevented that the detection accuracy of the pressure sensor 400 is poor due to excessive pressure or uneven pressure everywhere.

[0040] Further, the elastic member 530 is a spring. Specifically, a convex post can be connected between the force-bearing plate assembly 510 and the pressing plate assembly 520, and the spring is sleeved on the convex post, which can prevent the spring from moving around randomly. At the same time, the convex post ensures that relative movement can be performed between the force-bearing plate assembly 510 and the pressing plate assembly 520, reducing or increasing the distance between the two.

[0041] To provide the meshing degree between the helical gears and ensure the operation stability of the helical gears. Please refer to Figure 1 , Figure 2 and Figure 8 , Further, the battery hot pressing and forming machine further includes a plurality of adjusting moving blocks 600. The adjusting moving blocks 600 are movably installed on the bearing plate 110. A bearing 620 is embedded inside the adjusting moving block 600, and the bearing 620 is sleeved on the outer periphery of the first rotating shaft 338 or the second rotating shaft 339. In this way, the staff can adjust the position of the adjusting moving block 600 so that the bearing 620 presses the second helical gear 332 or the fifth helical gear 335, making the second helical gear 332 press the first helical gear 331 to improve the meshing degree between the first helical gear 331 and the second helical gear 332; or, adjust the position of the adjusting moving block 600 so that the bearing 620 presses the fifth helical gear 335 to improve the meshing degree between the fifth helical gear 335 and the seventh helical gear 337.

[0042] Please refer to Figure 1 , Figure 2 and Figure 8, Further, a plurality of mounting screw holes are formed in the bearing plate 110 on the side close to the pushing plate 340. An adjustment hole 610 is provided on the adjustment moving block 600. The adjustment moving block 600 is fixed to the bearing plate 110 by a bolt passing through the adjustment hole 610 and screwing into the mounting screw hole. Specifically, the width of the adjustment hole 610 can be set to be larger than that of the mounting screw hole. By passing a bolt through the mounting screw hole and the adjustment hole 610, the adjustment moving block 600 can be moved and fixed at the corresponding position, so as to realize the extrusion of the adjustment moving block 600 on the helical gear, improve the meshing degree between the helical gears, and ensure the stability of power transmission.

[0043] Continue to refer to Figure 1 , Figure 2 and Figure 8 , Further, adjustment moving blocks 600 are provided near the second helical gear 332, the third helical gear 333, the fourth helical gear 334, and the fifth helical gear 335. Specifically, the number of the adjustment moving blocks 600 is four. The four adjustment moving blocks 600 are respectively close to the second helical gear 332, the third helical gear 333, the fourth helical gear 334, and the fifth helical gear 335. These adjustment moving blocks 600 can respectively extrude each helical gear to move towards the helical gear meshing with it, enhancing the gear meshing degree between the two.

[0044] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. Battery hot pressing forming machine, characterized in that: The battery hot pressing forming machine comprises: A machine platform, wherein two ends of the frame of the machine platform extend upwardly with bearing plates, and horizontally arranged guide rods are provided between the bearing plates; A hot pressing assembly, comprising a plurality of hot pressing plates and batteries arranged alternately and spaced apart, wherein both ends of the hot pressing plates are respectively slidably sleeved on the guide rods; A driving assembly, comprising a motor, a reducer, a transmission assembly, two ball screws and a push plate, wherein the motor is connected to the reducer, the reducer is connected to the ball screw through the transmission assembly, the two ball screws are respectively threadedly connected to the two sides of the push plate, the two ends of the push plate are respectively slidably sleeved on the guide rod, and are located between the bearing plate and the frontmost hot pressing plate, and chains are connected between the hot pressing plate and the push plate and between the two adjacent hot pressing plates; The adjusting block is rotatably mounted on both sides of the push plate. The adjusting block is threadedly connected to the ball screw. The rotation of the adjusting block can drive the ball screw to rotate, so that the position of the push plate can be adjusted.

2. The battery hot pressing forming machine according to claim 1, characterized in that: An adjustment plate is installed on the push plate, and the top and bottom of the adjustment plate are respectively connected to a first adjustment screw and a second adjustment screw. The first adjustment screw and the second adjustment screw can press the adjustment block to rotate it, thereby driving the ball screw to rotate and moving the push plate.

3. The battery hot pressing forming machine according to claim 2, characterized in that: The adjusting block is provided with a protruding portion, and two sides of the protruding portion are pressed by the first adjusting screw and the second adjusting screw respectively.

4. The battery hot pressing forming machine according to claim 1, characterized in that: The transmission assembly includes a first helical gear, a second helical gear, a third helical gear, a fourth helical gear, a fifth helical gear, a sixth helical gear, a seventh helical gear, a first rotating shaft and a second rotating shaft; The reducer drives and connects the first helical gear, the first helical gear meshes with the second helical gear and the third helical gear, the second helical gear is connected to the fourth helical gear through the first rotating shaft, the third helical gear is connected to the fifth helical gear through the second rotating shaft, the fourth helical gear meshes with the sixth helical gear, the fifth helical gear meshes with the seventh helical gear, and the sixth helical gear and the seventh helical gear are both connected to the ball screw.

5. The battery hot pressing forming machine according to claim 1, characterized in that: A pressure sensor is installed on the supporting plate at the rear end, a force-bearing structure is arranged between the supporting plate at the rear end and the hot pressing plate at the rear end, the pressure sensor can be squeezed by the force-bearing structure to detect pressure, and the pressure sensor is connected to the motor.

6. The battery hot pressing forming machine according to claim 5, characterized in that: The force-bearing structure includes a force-bearing plate assembly, an extrusion plate assembly, and a plurality of elastic members arranged between the force-bearing plate assembly and the extrusion plate assembly. The force-bearing plate assembly is close to the hot pressing assembly, and the extrusion plate assembly is close to the pressure sensor.

7. The battery hot pressing forming machine according to claim 6, characterized in that: The elastic member is a spring.

8. The battery hot pressing forming machine according to claim 4, characterized in that: The battery hot pressing forming machine also includes a plurality of adjusting movable blocks, which are movably mounted on the carrying plate, and bearings are embedded inside the adjusting movable blocks, and the bearings are sleeved on the outer circumference of the first rotating shaft or the second rotating shaft.

9. The battery hot pressing forming machine according to claim 8, characterized in that: A plurality of mounting screw holes are provided on the bearing plate near the push plate, and an adjusting hole is provided on the adjusting moving block. The adjusting moving block is fixed on the bearing plate by bolts penetrating the adjusting hole and screwing the mounting screw holes.

10. The battery hot pressing forming machine according to claim 8, characterized in that: The adjusting moving blocks are arranged near the second bevel gear, the third bevel gear, the fourth bevel gear and the fifth bevel gear.

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