Battery bump detection device

Abstract

The invention relates to the field of lithium battery testing devices, in particular to a battery bump detection device which comprises a rack, a rotating shaft is arranged on the rack and driven by a rotating motor to rotate, a rotating disc is fixed to the rotating shaft, feeding grooves are evenly formed in the rotating disc, a hopper is fixed to the portion, above the rotating disc, of the rack, and a feeding hopper is fixed to the portion, above the rotating disc, of the rack. A discharging groove is formed in the bottom of the hopper, a baffle is further fixed to the portion, on the periphery of the rotary disc, of the rack, a positioning plate is fixed to the portion, on one side of the rotary disc, of the rack, a testing air cylinder is fixed to the portion, on the other side of the rotary disc, of the rack, and a testing opening penetrating through the baffle is formed in the position, corresponding to the testing air cylinder, of the baffle. A fixing plate is fixed at the tail end of a piston rod of the testing air cylinder, a testing plate is arranged on one side of the fixing plate, a plurality of positioning rods are fixed on the testing plate, and the positioning rods penetrate through the fixing plate and are in sliding connection with the fixing plate. Through the device, the bump test on the battery can be realized.

Description

Technical Field

[0001] The present invention relates to the field of lithium battery testing devices, and in particular to a battery bulge detection device. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloys as the negative electrode material and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use place very high demands on the environment. With the advancement of science and technology, lithium batteries have become mainstream and can be broadly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. However, lithium batteries can bulge during the production process, necessitating testing before release to the market to identify batteries exhibiting bulging.

[0003] Patent application number: CN202020327802.4 discloses a lithium battery bulge detection device, including a base, the upper surface of the base is fixedly connected to a U-shaped plate, and the two end surfaces of the U-shaped plate are fixedly connected to symmetrically arranged fixed plates, the fixed plates are rotatably connected to a rotating shaft, and a conveyor belt is sleeved on the rotating shaft; the lower surface of the top plate of the U-shaped plate is fixedly connected to a box body, and cross plates are equidistantly fixedly connected to the outer wall of the box body, and the lower surface of the cross plates is elastically connected to a marking block, which cooperates with the conveyor belt. Multiple conveyor belts are arranged on the rotating shaft to facilitate the simultaneous transportation of multiple lithium batteries that need to be tested. By arranging a baffle on the conveyor belt, the lithium batteries can be pushed to one side through the baffle to avoid the lithium batteries from being stranded during transportation. By arranging a marking block on the upper side of the conveyor belt, the bulging lithium batteries can be marked to facilitate the selection of staff. However, this type of detection device ultimately requires manual sorting of bulging batteries, which reduces test efficiency.

[0004] The present invention is proposed in view of the deficiencies in the prior art. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a battery bulge detection device.

[0006] The present invention can be achieved through the following technical solutions:

[0007] The present invention discloses a battery bulge detection device, comprising a frame, a rotating shaft is provided on the frame, the rotating shaft is driven to rotate by a rotating motor, a turntable is fixed on the rotating shaft, a feeding trough is evenly provided on the turntable, a hopper is fixed on the frame above the turntable, a discharge trough is provided at the bottom of the hopper, a baffle is further fixed on the frame around the turntable, a positioning plate is fixed on the frame on one side of the turntable, a test cylinder is fixed on the frame on the other side of the turntable, a test port penetrating the baffle is provided at a position corresponding to the test cylinder on the baffle, and a fixing plate is fixed to the end of the piston rod of the test cylinder. A test plate is provided on one side of the fixed plate, and a plurality of positioning rods are fixed on the test plate, and the positioning rods pass through the fixed plate and are slidably connected to the fixed plate, and the ends of the positioning rods are fixed with limit blocks, and a plurality of springs are fixed between the test plate and the fixed plate, and a test block is fixed on the test plate, and a displacement sensor is also fixed on the test plate, and a feeding port is also provided below the baffle, and a blocking cylinder is fixed on the frame on one side of the feeding port, and a support block is fixed on the end of the piston rod of the blocking cylinder, and a plurality of support rods are fixed on the support block, and the support rods are provided with support rollers that are rollingly connected to the support rods. Pour the battery to be tested into the hopper. Since the discharge chute at the bottom of the hopper can only accommodate one battery passing horizontally, the rotating shaft is driven by the rotating motor to rotate, and the turntable rotates with the rotating shaft. After the feeding chute on the turntable reaches the discharge chute position, the battery at the bottom of the discharge chute enters the feeding chute, which can realize the separation of the battery into individual batteries. The turntable continues to rotate, and the battery rotates with the turntable to the test port position. The test cylinder is started, the piston rod on the test cylinder extends, the fixed plate moves, and the fixed plate pushes the test plate to move. The test block moves with the test plate, and the test block contacts the battery. The length of the battery is confirmed by the distance between the test block and the positioning plate and the moving distance of the test block. The moving distance of the test block is confirmed by the displacement sensor. After the battery length is confirmed, when the moving distance of the test block is less than the normal value, the battery has occurred. After the bulging and battery testing is completed, when the bulged battery moves to the discharge port position, the blocking cylinder is started, the piston rod on the blocking cylinder is extended, and the support roller moves to the discharge port position. When the bulged battery reaches the discharge port position, it is blocked by the support roller and the bulged battery continues to move with the turntable. The bulged battery moves to the end of the baffle and is dropped and collected. When the moving distance of the test block is consistent with the normal value, that is, the battery has no bulge, the blocking cylinder is not started, and the battery without bulge moves with the turntable to the discharge port position and is dropped and collected through the discharge port. The device can realize bulging testing of batteries, and the bulged batteries are dropped and collected through the end of the baffle, and the batteries without bulges are dropped and collected through the discharge port. There is no need to manually select bulging batteries, which greatly improves battery detection efficiency and reduces labor costs.

[0008] Preferably, a receiving trough is fixed on the frame below the discharge port, and a recovery trough is fixed on the frame at the end of the baffle. Batteries with bulges slide down through the recovery trough for collection, and batteries without bulges slide down through the receiving trough for collection.

[0009] Preferably, the hopper is further provided with a vibration port, a vibration cylinder being fixed to the frame at the vibration port location, and the end of the piston rod of the vibration cylinder being fixed to a push plate. When the vibration cylinder is activated, the piston rod on the vibration cylinder extends and then shortens, and the push plate enters the hopper from the vibration port location and pushes the batteries in the hopper to move. After pushing the batteries to move, the push plate returns to its initial position, achieving battery vibration and ensuring that the batteries reach the discharge chute position.

[0010] Compared with the existing technology, the present invention has the following advantages:

[0011] This device can be used to test batteries for bulging, and batteries with bulges are collected by falling through the end of the baffle, while batteries without bulges are collected by falling through the discharge port. There is no need to manually sort out bulging batteries, which greatly improves battery testing efficiency and reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 It is a right side view of the present invention;

[0015] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0016] In the figure: 1. Frame; 2. Rotating shaft; 3. Rotating motor; 4. Turntable; 5. Feed chute; 6. Hopper; 7. Discharge chute; 8. Positioning plate; 9. Baffle; 10. Discharge port; 11. Test port; 12. Test cylinder; 13. Fixing plate; 14. Test plate; 15. Positioning rod; 16. Spring; 17. Limit block; 18. Test block; 19. Displacement sensor; 20. Discharge cylinder; 21. Support block; 22. Support rod; 23. Support roller; 24. Vibration port; 25. Vibration cylinder; 26. Push plate; 27. Receiving chute; 28. Recovery chute DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0018] Example 1:

[0019] like Figures 1 to 3As shown, this embodiment discloses a battery bulge detection device, which includes a frame 1, a rotating shaft 2 is provided on the frame 1, and the rotating shaft 2 is driven to rotate by a rotating motor 3, a turntable 4 is fixed on the rotating shaft 2, and a feeding trough 5 is evenly provided on the turntable 4, a hopper 6 is fixed on the frame 1 above the turntable 4, and a discharge trough 7 is provided at the bottom of the hopper 6, a baffle 9 is also fixed on the frame 1 on the side of the turntable 4, a positioning plate 8 is fixed on the frame 1 on one side of the turntable 4, and a test cylinder 12 is fixed on the frame 1 on the other side of the turntable 4, and a test port 11 is provided on the baffle 9 at a position corresponding to the test cylinder 12, and the piston rod end of the test cylinder 12 is fixed with a fixing plate 13, and one side of the fixing plate 13 A test plate 14 is provided, on which a plurality of positioning rods 15 are fixed, which pass through the fixed plate 13 and are slidably connected to the fixed plate 13, and a limit block 17 is fixed at the end of the positioning rod 15, and a plurality of springs 16 are fixed between the test plate 14 and the fixed plate 13, and a test block 18 is fixed on the test plate 14, and a displacement sensor 19 is also fixed on the test plate 14, and a feeding port 10 is also provided below the baffle 9, and a blocking cylinder 20 is fixed on the frame 1 on one side of the feeding port 10, and a support block 21 is fixed to the end of the piston rod of the blocking cylinder 20, and a plurality of support rods 22 are fixed on the support block 21, and each support rod 22 is provided with a support roller 23 which is rollingly connected to the support rod 22.The battery to be tested is poured into the hopper 6. Since the discharge chute 7 at the bottom of the hopper 6 can only accommodate one battery passing horizontally, the rotating shaft 2 is driven to rotate by the rotating motor 3. The turntable 4 rotates with the rotating shaft 2. After the feeding chute 5 on the turntable 4 reaches the discharge chute 7 position, the battery at the bottom of the discharge chute 7 enters the feeding chute 5, which can realize the separation of the battery into individual pieces. The turntable 4 continues to rotate, and the battery rotates with the turntable 4 to the test port 11 position. The test cylinder 12 is started, the piston rod on the test cylinder 12 is extended, the fixed plate 13 moves, and the fixed plate 13 pushes the test plate 14 to move. The test block 18 moves with the test plate 14, and the test block 18 contacts the battery. The length of the battery is confirmed by the distance between the test block 18 and the positioning plate 8 and the moving distance of the test block 18. The moving distance of the test block 18 is confirmed by the displacement sensor 19. After the battery length is confirmed, when the moving distance of the test block 18 is less than the normal value When the battery bulges, that is, the battery has a bulge, after the battery test is completed, when the bulged battery moves to the discharge port 10 position, the blocking cylinder 20 is started, the piston rod on the blocking cylinder 20 is extended, and the supporting roller 23 moves to the discharge port 10 position. When the bulged battery reaches the discharge port 10 position, the bulged battery continues to move with the turntable 4 due to the obstruction of the supporting roller 23, and the bulged battery moves to the end of the baffle 9 and is dropped and collected. When the moving distance of the test block 18 is consistent with the normal value, that is, the battery has no bulge, the blocking cylinder 20 is not started, and the battery without bulge moves with the turntable 4 to the discharge port 10 position and is dropped and collected through the discharge port 10. The device can realize bulging test of the battery, and the bulged battery is dropped and collected through the end of the baffle 9, and the battery without bulge is dropped and collected through the discharge port 10. There is no need to manually select the bulged battery, which greatly improves the battery detection efficiency and reduces labor costs.

[0020] Among them, a receiving trough 27 is also fixed on the frame 1 below the discharge port 10, and a recovery trough 28 is also fixed on the frame 1 at the end of the baffle 9. The bulging batteries slide through the recovery trough 28 for collection, and the batteries without bulging slide through the receiving trough 27 for collection.

[0021] Example 2:

[0022] This embodiment discloses a battery bulge detection device. Based on the structure and principle of Example 1, the hopper 6 of this embodiment is further provided with a vibration port 24. A vibration cylinder 25 is fixed to the frame 1 at the position of the vibration port 24. The end of the piston rod of the vibration cylinder 25 is fixed to a push plate 26. When the vibration cylinder 25 is activated, the piston rod on the vibration cylinder 25 extends and then shortens, and the push plate 26 enters the hopper 6 from the position of the vibration port 24 to push the batteries in the hopper 6 to move. After pushing the batteries, the push plate 26 returns to its initial position, achieving battery vibration and ensuring that the batteries reach the position of the discharge chute 7.

[0023] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, various changes, modifications, replacements and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, replacements and variations should also be regarded as the scope of protection of the present invention.

Claims

1. A battery bulge detection device, comprising a frame, characterized in that: The frame is provided with a rotating shaft, which is driven to rotate by a rotating motor, a turntable is fixed on the rotating shaft, a feeding trough is evenly arranged on the turntable, a hopper is fixed on the frame above the turntable, a discharge trough is arranged at the bottom of the hopper, a baffle is also fixed on the frame around the turntable, a positioning plate is fixed on the frame on one side of the turntable, a test cylinder is fixed on the frame on the other side of the turntable, a test port that passes through the baffle is provided on the baffle at a position corresponding to the test cylinder, a fixing plate is fixed on the end of the piston rod of the test cylinder, and a test A test plate, a plurality of positioning rods are fixed on the test plate, the positioning rods pass through the fixed plate and are slidably connected to the fixed plate, the ends of the positioning rods are fixed with limit blocks, a plurality of springs are fixed between the test plate and the fixed plate, a test block is fixed on the test plate, a displacement sensor is also fixed on the test plate, a feeding port is also provided below the baffle, a blocking cylinder is fixed on the frame on one side of the feeding port, a support block is fixed to the end of the piston rod of the blocking cylinder, a plurality of support rods are fixed on the support block, and the support rods are provided with support rollers that are rollingly connected to the support rods.

2. The battery bulge detection device according to claim 1, characterized in that: A material receiving trough is also fixed on the frame below the material discharge port, and a recovery trough is also fixed on the frame at the end of the baffle.

3. The battery bulge detection device according to claim 1, characterized in that: The hopper is also provided with a material vibration port, a vibration cylinder is fixed on the frame at the position of the material vibration port, and the end of the piston rod of the vibration cylinder is fixed to the push plate.

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