Tensile test device for battery diaphragm

Abstract

The utility model relates to the technical field of battery diaphragm testing, in particular to a battery diaphragm stretching testing device which comprises a testing table, a support and a check block are fixed to the top end of the testing table, a first hydraulic cylinder is fixed to the side, away from the support, of the check block, and a sliding base is fixed to a piston rod of the first hydraulic cylinder. Second hydraulic cylinders are fixed to the top ends of the support and the sliding base, pressing plates are fixed to the bottom ends of piston rods of the two second hydraulic cylinders, first anti-skid pads are fixed to the bottom ends of the two pressing plates, second anti-skid pads are fixed to the inner bottom walls of the support and the sliding base, and an exhaust fan and a collecting box are arranged on one side of the testing table. A telescopic pipe is fixed to an air inlet pipe of the exhaust fan, a base and a gas collecting hood are arranged above the collecting box, the end, away from the exhaust fan, of the telescopic pipe is connected with the gas collecting hood, a third hydraulic cylinder is fixed to the side, away from the gas collecting hood, of the base, and a piston rod of the third hydraulic cylinder is connected with the gas collecting hood; according to the utility model, the battery diaphragm is convenient to fix and collect, and manpower and time are saved.

Description

Technical Field

[0001] This utility model relates to the field of battery separator testing technology, and specifically to a battery separator tensile testing device. Background Technology

[0002] A battery separator is a layer of membrane material placed between the positive and negative electrodes of a battery. It is a crucial component of a battery, directly impacting its safety and cost. Its main functions are to isolate the positive and negative electrodes, preventing electrons from freely passing through while allowing ions in the electrolyte to freely pass between them. During battery separator production, tensile testing is required. This testing involves manual operation of the limiting (or clamping) mechanism to hold the separator in place. After testing, workers must manually release the separator and collect it from the testing platform before proceeding to the next batch. This process is time-consuming, labor-intensive, and reduces testing efficiency. Utility Model Content

[0003] To address the problems in the prior art, this utility model provides a battery separator tensile testing device.

[0004] The technical solution adopted by this utility model to solve its technical problem is a battery separator tensile testing device, including a test platform. A support and a stop are fixed to the top of the test platform. A first hydraulic cylinder is fixed to the side of the stop away from the support. A slide is fixed to the piston rod of the first hydraulic cylinder, located between the support and the stop. Second hydraulic cylinders are fixed to the top of both the support and the slide. Pressure plates are fixed to the bottom ends of the piston rods of both second hydraulic cylinders. First anti-slip pads are fixed to the bottom ends of both pressure plates. The inner bottom walls of both the support and the slide are fixed with second anti-slip pads. A fan and a collection box are provided on one side of the test bench. A telescopic pipe is fixed on the air inlet pipe of the fan. A base and a gas collection hood are provided above the collection box. The end of the telescopic pipe away from the fan passes through the base and is connected to the gas collection hood. The base is connected to the support. A third hydraulic cylinder is fixed on the side of the base away from the gas collection hood. The piston rod of the third hydraulic cylinder is connected to the gas collection hood. Multiple air inlets are provided at the bottom of the gas collection hood. A scale is provided on the side of the test bench away from the collection box.

[0005] By adopting the above technical solution, the battery separator to be tested is placed on two second anti-slip pads. The piston rods of the two second hydraulic cylinders drive the two pressure plates to move downwards. The two first anti-slip pads cooperate with the second anti-slip pads to facilitate the fixation of the battery separator. The piston rod of the first hydraulic cylinder drives the slide to move away from the support, realizing the tensile test of the battery separator. After the test, the piston rods of the two second hydraulic cylinders drive the two pressure plates to move upwards, releasing the fixation of the battery separator. The exhaust fan starts, and the piston rod of the third hydraulic cylinder drives the gas collection hood to move directly above the test platform. Under the action of negative pressure, the tested battery separator adheres tightly to the gas collection hood. The piston rod of the third hydraulic cylinder drives the gas collection hood from directly above the test platform to directly above the collection box. The exhaust fan is turned off, and the battery separator falls into the collection box, facilitating the collection of the battery separator. The whole process saves time and manpower and improves efficiency.

[0006] Specifically, two crossbars are fixed between the stop block and the support, and the slide block is provided with two through holes that are adapted to the crossbars.

[0007] By adopting the above technical solution, the crossbar configuration can improve the stability of the slide.

[0008] Specifically, each of the two pressure plates has two vertical plates fixed to its top, and the top of the support and the slide has two through slots that are adapted to the vertical plates.

[0009] By adopting the above technical solution, the vertical plate setting can improve the stability of the pressure plate.

[0010] Specifically, casters are installed at the four corners of the bottom of the collection box. The collection box has a notch on the side near the test platform, and a baffle is installed inside the notch. The top of the baffle is connected to the collection box by a hinge.

[0011] By adopting the above technical solution, the casters facilitate the movement of the collection box, make it easy to transfer the collected battery diaphragms, and open the baffle to facilitate the discharge of the battery diaphragms from the collection box.

[0012] Specifically, the baffle is fixed with a handle and two connecting blocks. Each of the two connecting blocks has a limiting block below it. Both limiting blocks are connected to the collection box. Each of the two limiting blocks has a plug rod above it. Each of the two connecting blocks has a through hole that matches the plug rod. Each of the two limiting blocks has a slot at the top that matches the plug rod.

[0013] By adopting the above technical solution, the connection block, the limit block, and the insertion rod can prevent the baffle from opening accidentally.

[0014] The beneficial effects of this utility model are:

[0015] (1) The battery separator tensile testing device of this utility model places the battery separator to be tested on two second anti-slip pads. The piston rods of the two second hydraulic cylinders drive the two pressure plates to move down. The two first anti-slip pads cooperate with the second anti-slip pads to facilitate the fixing of the battery separator. The piston rod of the first hydraulic cylinder drives the slide to move away from the support to realize the tensile test of the battery separator. After the test, the piston rods of the two second hydraulic cylinders drive the two pressure plates to move up to release the fixing of the battery separator. The exhaust fan runs, and the piston rod of the third hydraulic cylinder drives the gas collection hood to move directly above the test platform. The tested battery separator adheres tightly to the gas collection hood under the action of negative pressure. The piston rod of the third hydraulic cylinder drives the gas collection hood from directly above the test platform to directly above the collection box. The exhaust fan is turned off, and the battery separator falls into the collection box, which facilitates the collection of the battery separator. The whole process saves time and manpower and improves efficiency.

[0016] (2) The battery separator tensile testing device of this utility model has casters to facilitate the movement of the collection box and the transfer of the collected battery separator. The connection block, limit block and plug rod can prevent the baffle from being opened accidentally. Pull out the two plug rods and open the baffle to facilitate the discharge of the battery separator in the collection box. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 For the present utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0020] Figure 3 This is a schematic diagram of the structure of the collection box of this utility model;

[0021] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point B.

[0022] In the diagram: 1. Test bench; 2. Support; 3. Crossbar; 4. Slide; 5. Stop; 6. First hydraulic cylinder; 7. Second hydraulic cylinder; 8. Exhaust fan; 9. Collection box; 90. Baffle; 91. Handle; 92. Connecting block; 93. Limiting block; 94. Insert rod; 10. Telescopic tube; 11. Base; 12. Third hydraulic cylinder; 13. Gas collection hood; 14. Pressure plate; 15. First anti-slip pad; 16. Second anti-slip pad; 17. Vertical plate. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] To save manpower and time, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 As shown, the battery separator tensile testing device of this utility model includes a test platform 1. A support 2 and a stop block 5 are welded and fixed to the top of the test platform 1. A first hydraulic cylinder 6 is bolted to the side of the stop block 5 away from the support 2. A slide block 4 is bolted to the piston rod of the first hydraulic cylinder 6. The slide block 4 is located between the support 2 and the stop block 5. A second hydraulic cylinder 7 is bolted to the top of both the support 2 and the slide block 4. A pressure plate 14 is bolted to the bottom of the piston rods of both second hydraulic cylinders 7. A first anti-slip pad 15 is adhesively fixed to the bottom of both pressure plates 14. The inner bottom of the support 2 and the slide block 4... The walls are all fixed with second anti-slip pads 16 by adhesive. A fan 8 and a collection box 9 are provided on one side of the test bench 1. A telescopic pipe 10 is welded and fixed to the air inlet pipe of the fan 8. A base 11 and a gas collection hood 13 are provided above the collection box 9. The end of the telescopic pipe 10 away from the fan 8 passes through the base 11 and is welded to the gas collection hood 13. The base 11 is welded to the support 2. A third hydraulic cylinder 12 is fixed to the side of the base 11 away from the gas collection hood 13 by bolts. The piston rod of the third hydraulic cylinder 12 is connected to the gas collection hood 13 by bolts. The bottom end of the gas collection hood 13 is provided with multiple air inlets. The side of the test bench 1 away from the collection box 9 is provided with scale.

[0025] In use, the battery separator to be tested is placed on two second anti-slip pads 16. The piston rods of the two second hydraulic cylinders 7 drive the two pressure plates 14 to move downwards. The two first anti-slip pads 15 cooperate with the second anti-slip pads 16 to facilitate the fixing of the battery separator. The piston rod of the first hydraulic cylinder 6 drives the slide 4 to move away from the support 2 to realize the tensile test of the battery separator. After the test, the piston rods of the two second hydraulic cylinders 7 drive the two pressure plates 14 to move upwards to release the fixing of the battery separator. The exhaust fan 8 is turned on, and the piston rod of the third hydraulic cylinder 12 drives the gas collection hood 13 to move directly above the test platform 1. The tested battery separator moves upwards under the action of negative pressure and sticks tightly to the gas collection hood 13. The piston rod of the third hydraulic cylinder 12 drives the gas collection hood 13 from directly above the test platform 1 to directly above the collection box 9. The exhaust fan 8 is turned off, and the battery separator falls into the collection box 9 for easy collection. The whole process saves time and manpower and improves efficiency.

[0026] To improve the stability of slide 4, for example, such as Figure 1 As shown, two crossbars 3 are welded and fixed between the stop block 5 and the support 2, and the slide block 4 is provided with two through holes that are adapted to the crossbars 3.

[0027] To improve the stability of the two pressure plates 14, for example, such as Figure 2 As shown, two vertical plates 17 are welded and fixed to the top of each of the two pressure plates 14, and two through slots adapted to the vertical plates 17 are provided at the top of the support 2 and the slide 4.

[0028] To facilitate the transport of battery separators, for example, such as Figure 3 As shown, casters are installed at the four corners of the bottom of the collection box 9. The collection box 9 has a notch on the side near the test table 1, and a baffle 90 is installed in the notch. The top of the baffle 90 is connected to the collection box 9 by a hinge.

[0029] To prevent the baffle 90 from accidentally opening and causing the battery separator in the collection box 9 to be discharged, for example, such as Figure 3 , Figure 4 As shown, a handle 91 and two connecting blocks 92 are welded and fixed on the baffle 90. A limiting block 93 is provided below each of the two connecting blocks 92. Both limiting blocks 93 are welded and connected to the collection box 9. An insertion rod 94 is provided above each of the two limiting blocks 93. A through hole adapted to the insertion rod 94 is provided on each of the two connecting blocks 92. A slot adapted to the insertion rod 94 is provided at the top of each of the two limiting blocks 93.

[0030] When using this utility model, the battery separator to be tested is placed on two second anti-slip pads 16, and the piston rods of the two second hydraulic cylinders 7 drive the two pressure plates 14 to move down. The two first anti-slip pads 15 cooperate with the second anti-slip pads 16 to facilitate fixing the battery separator.

[0031] The piston rod of the first hydraulic cylinder 6 drives the slide block 4 to move away from the support 2, realizing the tensile test of the battery separator. After the test, the piston rods of the two second hydraulic cylinders 7 drive the two pressure plates 14 to move upward, releasing the fixation of the battery separator. The exhaust fan 8 starts, and the piston rod of the third hydraulic cylinder 12 drives the gas collection hood 13 to move directly above the test platform 1. The tested battery separator moves upward under the action of negative pressure and sticks tightly to the gas collection hood 13. The piston rod of the third hydraulic cylinder 12 drives the gas collection hood 13 from directly above the test platform 1 to directly above the collection box 9. The exhaust fan 8 is turned off, and the battery separator falls into the collection box 9, which facilitates the collection of the battery separator. The whole process saves time and manpower and improves efficiency.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents. Contents not described in detail in this utility model are considered prior art known to those skilled in the art.

Claims

1. A battery separator tensile testing device, characterized in that, The test platform (1) includes a support (2) and a stop (5) fixed at its top. A first hydraulic cylinder (6) is fixed on the side of the stop (5) away from the support (2). A slide (4) is fixed on the piston rod of the first hydraulic cylinder (6). The slide (4) is located between the support (2) and the stop (5). A second hydraulic cylinder (7) is fixed at the top of both the support (2) and the slide (4). A pressure plate (14) is fixed at the bottom of the piston rods of both second hydraulic cylinders (7). A first anti-slip pad (15) is fixed at the bottom of both pressure plates (14). A second anti-slip pad (16) is fixed on the inner bottom wall of both the support (2) and the slide (4). A blower (8) and a collection box (9) are provided on one side of the test bench (1). A telescopic pipe (10) is fixed on the air inlet pipe of the blower (8). A base (11) and a gas collection hood (13) are provided above the collection box (9). The end of the telescopic pipe (10) away from the blower (8) passes through the base (11) and is connected to the gas collection hood (13). The base (11) is connected to the support (2). A third hydraulic cylinder (12) is fixed on the side of the base (11) away from the gas collection hood (13). The piston rod of the third hydraulic cylinder (12) is connected to the gas collection hood (13). The bottom end of the gas collection hood (13) is provided with multiple air inlets. The side of the test bench (1) away from the collection box (9) is provided with a scale.

2. The battery separator tensile testing device according to claim 1, characterized in that, Two crossbars (3) are fixed between the stop (5) and the support (2), and the slide (4) is provided with two through holes that are adapted to the crossbars (3).

3. The battery separator tensile testing device according to claim 1, characterized in that, Two vertical plates (17) are fixed to the top of each of the two pressure plates (14), and two through slots adapted to the vertical plates (17) are provided at the top of the support (2) and the slide (4).

4. The battery separator tensile testing device according to claim 1, characterized in that, Casters are installed at the four corners of the bottom of the collection box (9). The collection box (9) has a notch on the side near the test table (1). A baffle (90) is provided in the notch. The top of the baffle (90) is connected to the collection box (9) by a hinge.

5. The battery separator tensile testing device according to claim 4, characterized in that, The baffle (90) is fixed with a handle (91) and two connecting blocks (92). Each of the two connecting blocks (92) has a limiting block (93) below it. Both limiting blocks (93) are connected to the collection box (9). Each of the two limiting blocks (93) has a plug rod (94) above it. Each of the two connecting blocks (92) has a through hole that matches the plug rod (94). Each of the two limiting blocks (93) has a slot that matches the plug rod (94) at its top.

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