A continuous extrusion testing device for lithium battery production
By designing a continuous extrusion testing equipment including a testing mechanism and a safety assurance component, the existing equipment has simple structure, poor safety and difficulty in achieving continuous testing, and the automated continuous extrusion testing of lithium batteries has been realized, which improves production efficiency and ensures test safety.
Patent Information
- Application Number
- CN202411711761.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-04-08
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing lithium battery production and extrusion testing equipment has a simple structure, poor safety, and is difficult to achieve continuous testing, which seriously affects the production efficiency of lithium batteries.
A continuous extrusion testing equipment including a base, a control module, a test mechanism and a safety assurance component is designed. The test mechanism consists of a support frame, a protective cartridge, a test cartridge, a feed channel, a first extrusion assembly and a second extrusion assembly. The test cartridge is driven to rotate by intermittently driving the assembly to realize continuous extrusion testing of the lithium battery. Safety assurance components include partitions, fire extinguishing orifices and cleaning components to ensure the safety of the test process.
Automatic continuous extrusion test of lithium batteries is realized, production efficiency is improved, the safety of the test process is ensured, and risks such as fire in lithium batteries are avoided.
Smart Images
Figure CN119779853A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of lithium battery extrusion testing, in particular to a continuous extrusion testing device for lithium battery production. Background Art
[0002] The continuous extrusion test of lithium battery production is an important safety inspection procedure. It evaluates the safety performance of lithium batteries by simulating the situation when lithium batteries are subjected to external extrusion, thereby ensuring their safety and stability under extreme conditions such as impact and compression. As an indispensable energy component in modern electronic devices and electric vehicles, the safety of lithium batteries is directly related to the safety of users' lives and property.
[0003] Most of the existing extrusion test equipment for lithium battery production has a simple structure, poor safety, and is difficult to perform continuous testing, which seriously affects the production efficiency of lithium batteries. Therefore, in view of the above situation, it is urgent to provide a continuous extrusion test equipment for lithium battery production to overcome the shortcomings in current practical applications. Summary of the invention
[0004] The purpose of the present invention is to provide a continuous extrusion testing device for lithium battery production, aiming to solve the problems in the above-mentioned background technology.
[0005] The present invention is implemented as follows: a continuous extrusion test device for lithium battery production, comprising: A base and a control module disposed on the base; A testing mechanism, the testing mechanism comprises a supporting frame, a protective cylinder, a testing cylinder and a feeding channel, the supporting frame is fixedly mounted on the base, the protective cylinder is fixedly connected to the supporting frame, and a feeding port and a discharging port are respectively provided at the top and bottom of the protective cylinder, the feeding channel is communicated with the feeding port, the testing cylinder is rotatably mounted in the protective cylinder, and an intermittent driving assembly for driving the testing cylinder to intermittently rotate a quarter of a turn is also provided on the supporting frame, a gap is provided between the testing cylinder and the protective cylinder, four groups of receiving grooves for placing lithium batteries are also provided on the testing cylinder, a first extrusion assembly is also provided on the protective cylinder, and a second extrusion assembly for cooperating with the first extrusion assembly is provided in the testing cylinder; And a safety guarantee component is arranged between the protection tube and the test tube.
[0006] As a further solution of the present invention: the first extrusion assembly includes: A first pressing plate for pressing the lithium battery in the receiving tank, wherein the first pressing plate is slidably mounted on the side wall of the protective tube; A compression box fixedly mounted on the protective tube, wherein a first piston plate is slidably mounted in the compression box, and the first piston plate is connected to the first extrusion plate via a first push rod; a first spring for elastically supporting the first piston plate, wherein the first spring is disposed in the compression box; And a pneumatic component for driving the first piston plate to move, wherein the pneumatic component is connected to the support frame.
[0007] As a further solution of the present invention: the second extrusion assembly includes: A partition frame fixedly installed in the test cylinder, wherein four groups of cavities are formed between the partition frame and the test cylinder; A second piston plate is slidably mounted in the cavity, a second push rod is fixedly mounted on the second piston plate, and a circular hole for the second push rod to penetrate is opened in the receiving groove; A second extrusion plate is located in the accommodating groove, wherein the second extrusion plate is fixedly connected to the second push rod, and the second push rod is also sleeved with a second spring for elastically pressing the second piston plate; A strip hole is used for connecting the cavity with the pneumatic component, and the strip hole is opened in the partition frame.
[0008] As a further solution of the present invention: the pneumatic component comprises: A support tube fixedly mounted on the support frame, the support tube is rotatably connected to the partition frame, and a group of air outlet holes are also opened on the support tube; and a first conduit, wherein the first conduit is used for communication between the support tube and the compression box.
[0009] As a further solution of the present invention: the safety assurance component includes a partition and a second rotating tube, the second rotating tube is rotatably installed on the support frame, and a cavity connected to the second rotating tube is opened in the side wall of the test cylinder, the partition is fixedly installed on the test cylinder, and four groups of partitions are evenly spaced in the circumferential direction of the test cylinder, each group of partitions is located between two adjacent groups of accommodating grooves, and the four groups of partitions are connected to the cavity in the test cylinder, and a fire extinguishing spray hole is also opened on the partition, and the end of the partition away from the test cylinder is slidably matched with the inner wall of the protective cylinder, and a plurality of baffles are also arranged on the partition.
[0010] As a further solution of the present invention: a cleaning assembly is further provided between the protective cylinder and the test cylinder, and the cleaning assembly comprises: A first rotating tube, wherein the first rotating tube is rotatably installed in the protective tube, one end of the first rotating tube is connected to the intermittent driving assembly, and the other end of the first rotating tube is connected to the supporting tube via a pressure switch assembly; And a cleaning roller fixedly installed on the first rotating tube, the surface of the cleaning roller is provided with a soft brush strip, and the cleaning roller is also provided with a nozzle, and the nozzle is connected with the first rotating tube.
[0011] As a further solution of the present invention: the pressure switch assembly comprises: A control box fixedly mounted on the support frame, wherein the control box has a left chamber and a right chamber, and multiple groups of through holes are opened between the left chamber and the right chamber, the left chamber is connected to the first rotating tube, and the right chamber is connected to the support tube through the second conduit; A linkage rod, wherein the linkage rod is slidably mounted in the control box, and a blocking block and a stopper are fixedly mounted on both ends of the linkage rod; A third spring is used for elastically supporting the stopper, and the third spring is sleeved on the linkage rod.
[0012] As a further solution of the present invention: the cleaning component and the first extrusion component are respectively located on both sides of the line connecting the feed port and the discharge port.
[0013] As a further solution of the present invention: the intermittent drive assembly comprises: A rotating frame rotatably mounted on the second rotating tube, wherein the rotating frame is fixedly connected to the test cylinder, and a driven gear is also fixedly mounted on the second rotating tube; A rotating shaft, the rotating shaft is rotatably mounted on a support frame, and the support frame is also provided with a motor for driving the rotating shaft to rotate; A driving gear meshing with the driven gear, wherein the driving gear is fixedly mounted on the rotating shaft; and a driving block fixedly mounted on the rotating shaft, wherein one end of the driving block is a fan-shaped structure, and the other end of the driving block is provided with a rotating column; And a limit block used to cooperate with the driving block, four groups of the limit blocks are fixedly installed on the rotating frame, and the rotating frame is also provided with a driving groove used to cooperate with the rotating column.
[0014] Compared with the prior art, the present invention has the following beneficial effects: the feed channel can be used to stack the lithium batteries to be tested above the feed port in sequence, and the lithium batteries at the bottom will enter the receiving groove. The intermittent drive component can drive the test cylinder to intermittently rotate a quarter of a turn, so that the lithium batteries entering the receiving groove follow the test cylinder to move between the protective cylinder and the test cylinder, and move to the working area of the first extrusion component. Every time the test cylinder rotates a quarter of a turn, a new group of lithium batteries enters the receiving groove. The first extrusion component and the second extrusion component can be used to perform an extrusion test on the lithium batteries. After the test, the test cylinder continues to rotate, so that the tested lithium batteries can be led out of the receiving groove to achieve automated continuous testing. The safety guarantee component can prevent the lithium battery from catching fire uncontrollably during extrusion. The coordinated arrangement of the test mechanism and the safety guarantee component avoids the problem that most of the existing extrusion test equipment for lithium battery production has a simple structure, poor safety, and is difficult to perform continuous testing, which seriously affects the production efficiency of lithium batteries. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1It is a schematic diagram of the structure of the present invention.
[0016] Figure 2 It is a schematic cross-sectional structural diagram of the testing mechanism in the present invention.
[0017] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.
[0018] Figure 4 for Figure 2 Schematic diagram of the rear view structure.
[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the test tube in the present invention.
[0020] Figure 6 It is a schematic diagram of the structure of the support tube in the present invention.
[0021] Figure 7 It is a schematic diagram of the structure of the intermittent drive component in the present invention.
[0022] Figure 8 It is an exploded view of the intermittent drive assembly in the present invention.
[0023] Fig. 9 It is a schematic cross-sectional structural diagram of the pressure switch assembly in the present invention.
[0024] In the attached figure: 1-base, 2-control module, 3-feeding channel, 4-protective cylinder, 5-test cylinder, 6-first extrusion plate, 7-first push rod, 8-compression box, 9-first guide tube, 10-support frame, 11-support tube, 12-control box, 13-feeding port, 14-discharging port, 15-cleaning roller, 16-first rotating tube, 17-partition plate, 18-fire extinguishing spray hole, 19-partition frame, 20-first piston plate, 21-first spring, 22-second extrusion plate, 23 -accommodating groove, 24-baffle, 25-second push rod, 26-second spring, 27-second piston plate, 28-rotating frame, 29-second rotating tube, 30-motor, 31-driving gear, 32-second conduit, 33-limiting block, 34-strip hole, 35-air outlet, 36-rotating shaft, 37-driven gear, 38-driving groove, 39-driving block, 40-blocking block, 41-linkage rod, 42-through hole, 43-third spring, 44-baffle, 45-drain hole. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The specific implementation of the present invention is described in detail below in combination with specific embodiments.
[0026] See also Figure 1-Figure 9 , an embodiment of the present invention provides a continuous extrusion test device for lithium battery production, the continuous extrusion test device for lithium battery production comprising: A base 1 and a control module 2 arranged on the base 1; A testing mechanism, the testing mechanism comprises a support frame 10, a protective cylinder 4, a test cylinder 5 and a feed channel 3, the support frame 10 is fixedly mounted on the base 1, the protective cylinder 4 is fixedly connected to the support frame 10, and a feed port 13 and a discharge port 14 are respectively provided at the top and bottom of the protective cylinder 4, the feed channel 3 is communicated with the feed port 13, the test cylinder 5 is rotatably mounted in the protective cylinder 4, and an intermittent driving assembly for driving the test cylinder 5 to intermittently rotate a quarter of a turn is also provided on the support frame 10, a gap is provided between the test cylinder 5 and the protective cylinder 4, four groups of receiving grooves 23 for placing lithium batteries are also provided on the test cylinder 5, a first extrusion assembly is also provided on the protective cylinder 4, and a second extrusion assembly for cooperating with the first extrusion assembly is provided in the test cylinder 5; And a safety guarantee component is arranged between the protection tube 4 and the test tube 5.
[0027] In the embodiment of the present invention, the device is preferably suitable for testing cylindrical lithium batteries, such as 18650 lithium batteries and 4680 lithium batteries; the feed channel 3 can be used to stack the lithium batteries to be tested above the feed port 13 in sequence, and the lithium batteries at the bottom will enter the receiving groove 23. The intermittent drive component drives the test cylinder 5 to rotate intermittently by a quarter of a turn, so that the lithium batteries entering the receiving groove 23 follow the test cylinder 5 to move between the protective cylinder 4 and the test cylinder 5, and move to the working area of the first extrusion component. Every time the test cylinder 5 rotates a quarter of a turn, a new group of lithium batteries enters the receiving groove 23, and the lithium batteries can be squeezed by the first extrusion component and the second extrusion component. Compression test, after the test is completed, the test barrel 5 continues to rotate, so that the tested lithium battery can be guided out of the receiving slot 23, to achieve automated continuous testing, and the use of a safety guarantee component can prevent the lithium battery from catching fire uncontrollably during extrusion; wherein the base 1 is provided with a cavity for accommodating the tested lithium battery, and a sorting module can be provided in the base 1 for separately storing batteries that fail the test, wherein the sorting module can be provided with the existing public technology; compared with the prior art, the present invention avoids the problem that most of the existing extrusion test equipment for lithium battery production has a simple structure, poor safety, and is difficult to perform continuous testing, which seriously affects the production efficiency of lithium batteries, through the coordinated arrangement of the testing mechanism and the safety guarantee component.
[0028] In one embodiment of the present invention, see Figure 1-Figure 9 , the first extrusion assembly comprises: A first pressing plate 6 for pressing the lithium battery in the receiving groove 23, wherein the first pressing plate 6 is slidably mounted on the side wall of the protective tube 4; A compression box 8 is fixedly mounted on the protective tube 4, wherein a first piston plate 20 is slidably mounted in the compression box 8, and the first piston plate 20 is connected to the first extrusion plate 6 via a first push rod 7; a first spring 21 for elastically supporting the first piston plate 20, wherein the first spring 21 is disposed in the compression box 8; and a pneumatic assembly for driving the first piston plate 20 to move, wherein the pneumatic assembly is connected to the support frame 10; The second extrusion assembly comprises: A partition frame 19 fixedly mounted in the test tube 5, wherein four groups of cavities are formed between the partition frame 19 and the test tube 5; A second piston plate 27 is slidably mounted in the cavity, a second push rod 25 is fixedly mounted on the second piston plate 27, and a circular hole for the second push rod 25 to penetrate is opened in the receiving groove 23; A second extrusion plate 22 is located in the accommodating groove 23. The second extrusion plate 22 is fixedly connected to a second push rod 25. The second push rod 25 is also sleeved with a second spring 26 for elastically pressing the second piston plate 27. A strip hole 34 for connecting the cavity with the pneumatic component, the strip hole 34 is opened in the partition frame 19; The pneumatic assembly comprises: A support tube 11 fixedly mounted on the support frame 10, the support tube 11 is rotatably connected to the partition frame 19, and a group of air outlet holes 35 are also opened on the support tube 11; and a first conduit 9, wherein the first conduit 9 is used for connecting the support tube 11 with the compression box 8; The safety guarantee component includes a partition 17 and a second rotating tube 29, the second rotating tube 29 is rotatably mounted on the support frame 10, and a cavity connected to the second rotating tube 29 is opened in the side wall of the test tube 5, the partition 17 is fixedly mounted on the test tube 5, and four groups of partitions 17 are arranged at equal intervals in the circumferential direction of the test tube 5, each group of partitions 17 is located between two adjacent groups of accommodating grooves 23, and the four groups of partitions 17 are connected to the cavity in the test tube 5, and a fire extinguishing spray hole 18 is also opened on the partition 17, and one end of the partition 17 away from the test tube 5 is slidably matched with the inner wall of the protective tube 4, and a plurality of baffles 24 are also arranged on the partition 17; A cleaning assembly is also provided between the protective tube 4 and the test tube 5, and the cleaning assembly includes: A first rotating tube 16, wherein the first rotating tube 16 is rotatably installed in the protective tube 4, and one end of the first rotating tube 16 is connected to the intermittent driving assembly, and the other end of the first rotating tube 16 is connected to the support tube 11 through a pressure switch assembly; and a cleaning roller 15 fixedly mounted on the first rotating tube 16, wherein a soft brush strip is arranged on the surface of the cleaning roller 15, and a nozzle is also provided on the cleaning roller 15, and the nozzle is connected to the first rotating tube 16; The pressure switch assembly comprises: A control box 12 fixedly mounted on the support frame 10, wherein the control box 12 has a left chamber and a right chamber, and a plurality of through holes 42 are provided between the left chamber and the right chamber, the left chamber is connected to the first rotating tube 16, and the right chamber is connected to the support tube 11 through the second conduit 32; A linkage rod 41, wherein the linkage rod 41 is slidably mounted in the control box 12, and a blocking block 40 and a stopper 44 are fixedly mounted on both ends of the linkage rod 41; A third spring 43 for elastically supporting the stopper 44, wherein the third spring 43 is sleeved on the linkage rod 41; The cleaning assembly and the first extrusion assembly are respectively located on both sides of the line connecting the feed port 13 and the discharge port 14 .
[0029] In this embodiment, when in use, the support tube 11 is connected to an external gas source, the second rotating tube 29 is connected to an external carbon dioxide gas source, and the gas outlet 35 faces the first extrusion assembly. When the gas outlet 35 is connected to the strip hole 34, the support tube 11 can be used to introduce gas into the cavity between the partition frame 19 and the test tube 5, thereby pushing the second piston plate 27 to move, and the second push rod 25 can be used to drive the second extrusion plate 22 to press onto the lithium battery. At the same time, the first conduit 9 can be used to introduce gas into the compression box 8, and the gas in the compression box 8 will press the first piston plate 20 to move, and the first push rod 7 can be used to drive the first extrusion plate 6 to press onto the lithium battery. The second extrusion plate 22 and the first push rod 7 are arranged in cooperation, and the lithium battery can be squeezed. If a fire occurs after squeezing, , carbon dioxide is introduced by using the second rotating tube 29, and the carbon dioxide enters the partition 17 through the cavity in the test tube 5 and is sprayed out through the fire extinguishing spray hole 18. Through the enclosure effect of the two adjacent groups of partitions 17, the carbon dioxide is quickly filled into the working area of the first extrusion component, which is convenient for fire extinguishing. The baffle 24 can be used to block the lithium battery to prevent the lithium battery from falling into the left position of the receiving groove 23; when the support tube 11 is pressurized to a certain value, the gas entering the control box 12 will push the blocking block 40 to move, so that part of the gas can enter the first rotating tube 16, and the cleaning roller 15 can be used to spray the gas. At the same time, the first rotating tube 16 drives the cleaning roller 15 to rotate, which can improve the cleaning effect of the receiving groove 23 and prevent impurities generated during extrusion from affecting subsequent test results.
[0030] In one embodiment of the present invention, see Figure 1-Figure 9 , the intermittent drive assembly comprises: The rotating frame 28 mounted on the second rotating tube 29 is rotated, the rotating frame 28 is fixedly connected to the test tube 5, and a driven gear 37 is also fixedly mounted on the second rotating tube 29; A rotating shaft 36, the rotating shaft 36 is rotatably mounted on the support frame 10, and the support frame 10 is also provided with a motor 30 for driving the rotating shaft 36 to rotate; A driving gear 31 meshing with a driven gear 37, wherein the driving gear 31 is fixedly mounted on a rotating shaft 36; and a driving block 39 fixedly mounted on the rotating shaft 36, wherein one end of the driving block 39 is a fan-shaped structure, and the other end of the driving block 39 is provided with a rotating column; And the limit blocks 33 used for cooperating with the driving blocks 39, four groups of the limit blocks 33 are fixedly installed on the rotating frame 28, and the rotating frame 28 is also provided with a driving groove 38 used for cooperating with the rotating column.
[0031] In the present embodiment, the second rotating tube 29 is connected to the first rotating tube 16 by a combined structure of a pulley and a transmission belt, so that the second rotating tube 29 can drive the first rotating tube 16 to rotate; the motor 30, the rotating shaft 36, the driving gear 31 and the driven gear 37 are matched to drive the driving block 39 and the second rotating tube 29 to rotate; during the rotation of the driving block 39, the rotating column at the end of the driving block 39 will be driven to move into one of the groups of rotating frames 28. When the rotating column enters the receiving groove 23, the rotating column will move from the end of the receiving groove 23 close to the second rotating tube 29 to the end of the receiving groove 23 away from the second rotating tube 29, and finally return to the end of the receiving groove 23 close to the second rotating tube 29 and separate from the receiving groove 23, thereby pulling the rotating frame 28 to rotate 90° on the second rotating tube 29. After the rotating column is separated from the driving groove 38, the fan-shaped structure at the end of the driving block 39 will contact the limit block 33 to realize the positioning function, thereby preventing the rotating frame 28 from rotating with the second rotating tube 29, so that the rotating frame 28 rotates slowly and intermittently.
[0032] In the present invention, unless otherwise clearly specified and limited, the terms "slide", "rotate", "fix", "have" and the like should be understood in a broad sense, for example, it can be a welding connection, a bolt connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A continuous extrusion test device for lithium battery production, comprising a base and a control module arranged on the base, characterized in that: Also includes: A testing mechanism, the testing mechanism comprises a supporting frame, a protective cylinder, a testing cylinder and a feeding channel, the supporting frame is fixedly mounted on the base, the protective cylinder is fixedly connected to the supporting frame, and a feeding port and a discharging port are respectively provided at the top and bottom of the protective cylinder, the feeding channel is communicated with the feeding port, the testing cylinder is rotatably mounted in the protective cylinder, and an intermittent driving assembly for driving the testing cylinder to intermittently rotate a quarter of a turn is also provided on the supporting frame, a gap is provided between the testing cylinder and the protective cylinder, four groups of receiving grooves for placing lithium batteries are also provided on the testing cylinder, a first extrusion assembly is also provided on the protective cylinder, and a second extrusion assembly for cooperating with the first extrusion assembly is provided in the testing cylinder; And a safety guarantee component is arranged between the protection tube and the test tube.
2. The continuous extrusion test equipment for lithium battery production according to claim 1, characterized in that: The first extrusion assembly comprises: A first pressing plate for pressing the lithium battery in the receiving tank, wherein the first pressing plate is slidably mounted on the side wall of the protective tube; A compression box fixedly mounted on the protective tube, wherein a first piston plate is slidably mounted in the compression box, and the first piston plate is connected to the first extrusion plate via a first push rod; a first spring for elastically supporting the first piston plate, wherein the first spring is disposed in the compression box; And a pneumatic component for driving the first piston plate to move, wherein the pneumatic component is connected to the support frame.
3. The continuous extrusion test equipment for lithium battery production according to claim 2, characterized in that: The second extrusion assembly comprises: A partition frame fixedly installed in the test cylinder, wherein four groups of cavities are formed between the partition frame and the test cylinder; A second piston plate is slidably mounted in the cavity, a second push rod is fixedly mounted on the second piston plate, and a circular hole for the second push rod to penetrate is opened in the receiving groove; A second extrusion plate is located in the accommodating groove, wherein the second extrusion plate is fixedly connected to the second push rod, and the second push rod is also sleeved with a second spring for elastically pressing the second piston plate; A strip hole is used for connecting the cavity with the pneumatic component, and the strip hole is opened in the partition frame.
4. The continuous extrusion test equipment for lithium battery production according to claim 3, characterized in that: The pneumatic assembly comprises: A support tube fixedly mounted on the support frame, the support tube is rotatably connected to the partition frame, and a group of air outlet holes are also opened on the support tube; and a first conduit, wherein the first conduit is used for communication between the support tube and the compression box.
5. The continuous extrusion test equipment for lithium battery production according to claim 1, characterized in that: The safety assurance component includes a partition and a second rotating tube, the second rotating tube is rotatably installed on the support frame, and a cavity connected to the second rotating tube is opened in the side wall of the test cylinder, the partition is fixedly installed on the test cylinder, and four groups of partitions are arranged at equal intervals in the circumferential direction of the test cylinder, each group of partitions is located between two adjacent groups of accommodating grooves, and the four groups of partitions are connected to the cavity in the test cylinder. A fire extinguishing spray hole is also opened on the partition, and the end of the partition away from the test cylinder is slidably matched with the inner wall of the protective cylinder, and a plurality of baffles are also arranged on the partition.
6. The continuous extrusion test equipment for lithium battery production according to claim 4, characterized in that: A cleaning assembly is also provided between the protective cylinder and the test cylinder, and the cleaning assembly comprises: A first rotating tube, wherein the first rotating tube is rotatably installed in the protective tube, one end of the first rotating tube is connected to the intermittent driving assembly, and the other end of the first rotating tube is connected to the supporting tube via a pressure switch assembly; And a cleaning roller fixedly installed on the first rotating tube, the surface of the cleaning roller is provided with a soft brush strip, and the cleaning roller is also provided with a nozzle, and the nozzle is connected with the first rotating tube.
7. The continuous extrusion test equipment for lithium battery production according to claim 6, characterized in that: The pressure switch assembly comprises: A control box fixedly mounted on the support frame, wherein the control box has a left chamber and a right chamber, and multiple groups of through holes are opened between the left chamber and the right chamber, the left chamber is connected to the first rotating tube, and the right chamber is connected to the support tube through the second conduit; A linkage rod, wherein the linkage rod is slidably mounted in the control box, and a blocking block and a stopper are fixedly mounted on both ends of the linkage rod; A third spring is used for elastically supporting the stopper, and the third spring is sleeved on the linkage rod.
8. The continuous extrusion test equipment for lithium battery production according to claim 6, characterized in that: The cleaning assembly and the first extrusion assembly are respectively located on both sides of a line connecting the feed port and the discharge port.
9. The continuous extrusion test equipment for lithium battery production according to claim 6, characterized in that: The intermittent drive assembly comprises: A rotating frame rotatably mounted on the second rotating tube, wherein the rotating frame is fixedly connected to the test cylinder, and a driven gear is also fixedly mounted on the second rotating tube; A rotating shaft, the rotating shaft is rotatably mounted on a support frame, and the support frame is also provided with a motor for driving the rotating shaft to rotate; A driving gear meshing with the driven gear, wherein the driving gear is fixedly mounted on the rotating shaft; and a driving block fixedly mounted on the rotating shaft, wherein one end of the driving block is a fan-shaped structure, and the other end of the driving block is provided with a rotating column; And a limit block used to cooperate with the driving block, four groups of the limit blocks are fixedly installed on the rotating frame, and the rotating frame is also provided with a driving groove used to cooperate with the rotating column.