High-precision self-adaptive tension continuous unwinding device adaptive to ion exchange membrane

Abstract

The invention relates to the technical field of membrane material conveying, in particular to a high-precision self-adaptive tension continuous unwinding device matched with an ion exchange membrane, a tensioning unit comprises a moving block arranged on a support in a sliding mode, a spring is fixedly arranged on the moving block, a limiting block is fixedly arranged at the other end of the spring, and a regulation and control shaft is rotationally arranged on the limiting block; a servo motor is started to enable a regulator fixed to the output end of the servo motor to rotate, then materials are conveyed and guided to pass through a third pressing roller and a second pressing roller on a support, a connecting rod can be controlled to stretch out and draw back through an air cylinder arranged at the bottom end of the support, a moving block is controlled to slide in the horizontal direction through a connecting plate, and the sliding moving block can drive a limiting block to move; furthermore, a spring arranged between a moving block and a limiting block can ensure that the limiting block has an elastic force change process in the moving process, so that irreversible damage to the ion exchange membrane is avoided.

Description

Technical Field

[0001] This invention relates to the field of membrane material transport technology, specifically to a high-precision adaptive tension continuous unwinding device adapted to ion exchange membranes. Background Technology

[0002] In the battery cell manufacturing process, the separator, as a key insulating material, is used throughout the two core processes of winding and stacking, directly affecting the structural stability and safety performance of the cell. After being released by the unwinding mechanism, the separator needs to be turned and pulled by multiple sets of guide rollers before being precisely delivered to the winding mechanism. However, during the continuous passage through multiple guide rollers, the separator belt is susceptible to factors such as differences in the friction coefficient of the roller surface, deviations in the synchronization of roller speeds, and fluctuations in the initial tension of unwinding, resulting in irregular fluctuations in its own tension.

[0003] The core components of the traditional device include an unwinding roller, a tension sensor, an adaptive adjustment module, a guide roller assembly, a braking actuator, and a PLC control system. The unwinding roller carries the ion exchange membrane roll, the tension sensor collects membrane tension data in real time, the adaptive adjustment module compares and analyzes preset parameters with measured values, and the PLC control system issues instructions to the braking actuator to stabilize the tension by adjusting the braking torque. The guide roller assembly ensures smooth membrane conveying. In use, the ion exchange membrane roll is first fixed to the unwinding roller, the equipment is debugged, and a target tension value is set. After starting the device, the unwinding roller releases the membrane roll at a uniform speed, which is then conveyed by the guide roller assembly. The tension sensor continuously monitors changes in membrane tension and provides feedback data. When tension fluctuates, the adaptive adjustment module responds quickly, driving the braking actuator through the PLC control system to adjust the braking force and offset tension deviations in real time. The membrane tension is kept stable within the preset range throughout the process, achieving high-precision continuous unwinding and meeting the requirements of subsequent processing steps for consistent membrane tension.

[0004] Traditional tension adjustment relies heavily on the passive extension and retraction of mechanical springs. However, the spring's elastic coefficient is fixed and cannot dynamically adapt to the membrane roll's state. As the diameter of the ion exchange membrane roll gradually decreases, the tension required for unwinding needs to be adjusted synchronously to balance the inertial force. However, the spring's deformation response has an inherent hysteresis. When the membrane roll is small, the spring's tension compensation often cannot keep up with the rhythm of diameter change, causing the membrane strip to experience a sudden increase or decrease in tension at the moment of unwinding. This fluctuating tension has a significant impact on thin and brittle ion exchange membranes. When loose, the membrane strip is prone to wrinkles and stacking; when tight, excessive stretching leads to molecular chain breakage, resulting in irreversible deformation and directly damaging the uniformity and integrity of the membrane material. Summary of the Invention

[0005] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is that the tension adjustment of traditional devices mostly relies on the passive extension and contraction of mechanical springs. However, the elastic coefficient of the spring is fixed and cannot be dynamically adapted to the state of the membrane roll. When the diameter of the ion exchange membrane roll gradually decreases, the tension required for unwinding needs to be adjusted synchronously to balance the inertial force. However, the deformation response of the spring has an inherent hysteresis. When the membrane roll is small, the tension compensation of the spring often cannot keep up with the rhythm of diameter change, resulting in a sudden increase or decrease in tension of the membrane strip at the moment of unwinding. This state of sudden loosening and tightening has a significant impact on the thin and brittle ion exchange membrane. When loose, the membrane strip is prone to wrinkles and stacking. When tight, excessive stretching leads to molecular chain breakage, forming irreversible deformation, which directly damages the uniformity and integrity of the membrane material.

[0006] The technical solution adopted by this application to solve its technical problem is: a high-precision adaptive tension continuous unwinding device for ion exchange membranes, including a base plate and a controller, wherein a support is fixedly mounted on the base plate, and the two supports are arranged parallel to each other.

[0007] The guiding unit includes a guide rail fixedly mounted on the base plate, a slider slidably mounted on the guide rail, a positioning plate fixedly mounted on the slider, a vertical plate fixedly mounted on the positioning plate, a winding shaft rotatably mounted on the vertical plate, the winding shaft being fixedly connected to the controller, a second pressure roller rotatably mounted between the two brackets, and a third pressure roller rotatably mounted on the brackets, the second and third pressure rollers being arranged parallel to each other. The guiding unit is used for unwinding the ion exchange membrane.

[0008] The tensioning unit includes a movable block slidably disposed on the support, a spring fixedly disposed on the movable block, a limit block fixedly disposed on the other end of the spring, an adjustment shaft rotatably disposed on the limit block, a buffer roller fixedly disposed on the adjustment shaft, the buffer roller and the pressure roller being arranged parallel to each other, and the tensioning unit is used to tension the ion exchange membrane.

[0009] Preferably, a support rod is fixedly provided on the base plate, the support rods are arranged parallel to each other, the distance between two adjacent support rods is equal, and the support rods are evenly distributed at the edge of the base plate.

[0010] Preferably, a servo motor is fixedly mounted on the controller, the output end of the servo motor is connected to the take-up shaft, a support frame is fixedly mounted on the positioning plate, and a pressure roller is rotatably mounted on the support frame.

[0011] Preferably, a fixing plate is fixedly provided on the bottom end of the bracket, a limiting plate is fixedly provided on the fixing plate, a long plate is rotatably provided on the limiting plate, and a cylinder is fixedly provided on the long plate.

[0012] Preferably, a connecting rod is movably connected to the output end of the cylinder, a connecting plate is rotatably connected to the connecting rod, a shaft is rotatably disposed at the other end of the connecting plate, a connecting block is rotatably disposed on the shaft, and the connecting block is movably connected to the moving block.

[0013] Preferably, a horizontal plate is fixedly installed on the top of the bracket, a hydraulic device is fixedly installed on the horizontal plate, a housing is fixedly installed on the side wall of the bracket, and a speed regulator is rotatably installed inside the housing.

[0014] Preferably, a detection plate is fixedly mounted on the bracket, a guide shaft is rotatably mounted on the detection plate, a detector is slidably mounted on the guide shaft, and a rotating shaft is rotatably mounted on the bracket, with the guide shaft and the rotating shaft being parallel to each other.

[0015] Preferably, a protective shell is fixedly installed on the base plate, a controller is fixedly installed inside the protective shell, a belt is movably installed inside the protective shell, and a pressure reducer is fixedly installed on the side wall of the bracket.

[0016] Preferably, both the third pressure roller and the second pressure roller are rotatably connected to the pressure reducer.

[0017] Preferably, the distance between the two brackets is not less than the length of the winding shaft.

[0018] The beneficial effects of this application are as follows: This application provides a high-precision adaptive tension continuous unwinding device adapted to ion exchange membranes. When using the device, the operator first moves the device to a suitable position and fixes it. The support rod set on the base plate can position and fix the main body of the device. The material to be processed is placed on the winding shaft of the device. The servo motor is started to make the controller fixed on its output end rotate. Then the material is guided through the pressure rollers three and two on the support. The cylinder set at the bottom of the support can control the extension and retraction of the connecting rod, and the connecting plate controls the sliding of the moving block in the horizontal direction. The sliding moving block can drive the limit block to move, thereby controlling the movement of the control shaft to adjust the tension of the ion exchange membrane during transmission. The spring set between the moving block and the limit block can ensure that the limit block has an elastic force change process during the movement, avoiding irreversible damage to the ion exchange membrane and improving the stability of the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 3 This is a side view of the structure of the present invention;

[0022] Figure 4 For the present invention Figure 4 Enlarged structural diagram at point B;

[0023] Figure 5 This is a schematic diagram of the internal structure of the protective shell of the present invention;

[0024] Figure 6 This is a schematic diagram of the pressure reducer structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the hydraulic device structure of the present invention;

[0026] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C.

[0027] In the diagram: 1. Base plate; 11. Support rod; 12. Guide rail; 13. Slider; 14. Positioning plate; 141. Vertical plate; 142. Rewind shaft; 143. Support frame; 144. Pressure roller one; 145. Controller; 1451. Servo motor; 2. Bracket; 21. Fixing plate; 22. Limiting plate; 23. Long plate; 231. Cylinder; 232. Connecting rod; 233. Connecting plate; 24. Rotating shaft; 2 41. Detection plate; 242. Guide shaft; 243. Detector; 25. Pressure roller II; 231. Cylinder; 3. Housing; 31. Speed ​​controller; 34. Pressure roller III; 4. Protective housing; 41. Controller; 42. Belt; 5. Pressure reducer; 6. Horizontal plate; 61. Hydraulic unit; 7. Shaft; 8. Connecting block; 81. Moving block; 82. Spring; 83. Limiting block; 84. Adjustment shaft; 841. Buffer roller. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0030] Reference Figures 1-8A high-precision adaptive tension continuous unwinding device for ion exchange membranes includes a base plate 1 and a controller 145. Supports 2 are fixedly mounted on the base plate 1, and the two supports 2 are arranged parallel to each other.

[0031] The guiding unit includes a guide rail 12 fixedly mounted on the base plate 1, a slider 13 slidably mounted on the guide rail 12, a positioning plate 14 fixedly mounted on the slider 13, a vertical plate 141 fixedly mounted on the positioning plate 14, a winding shaft 142 rotatably mounted on the vertical plate 141, the winding shaft 142 being fixedly connected to the controller 145, a pressure roller 25 rotatably mounted between the two supports 2, and a pressure roller 34 rotatably mounted on the supports 2, the pressure roller 25 and the pressure roller 34 being arranged parallel to each other. The guiding unit is used to unwind the ion exchange membrane.

[0032] The tensioning unit includes a movable block 81 slidably mounted on the support 2, a spring 82 fixedly mounted on the movable block 81, a limit block 83 fixedly mounted on the other end of the spring 82, an adjustment shaft 84 rotatably mounted on the limit block 83, and a buffer roller 841 fixedly mounted on the adjustment shaft 84. The buffer roller 841 and the pressure roller 25 are arranged parallel to each other. The tensioning unit is used to tension the ion exchange membrane.

[0033] Reference Figures 1-3 Support rods 11 are fixedly installed on the base plate 1. Each support rod 11 is arranged parallel to each other, and the distance between two adjacent support rods 11 is equal. The support rods 11 are evenly distributed at the edge of the base plate 1. The support rods 11 on the base plate 1 provide support for the device body. At the same time, the equal distance between each support rod 11 ensures that each support rod 11 is subjected to uniform force, thereby ensuring the stability of the device during use and avoiding damage to the support rods 11 due to uneven force. Furthermore, placing them at the edge of the base plate 1 can prevent the device from tilting and ensure the safety of the device during use.

[0034] Reference Figures 3-6 A servo motor 1451 is fixedly installed on the controller 145. The output end of the servo motor 1451 is connected to the winding shaft 142. A support frame 143 is fixedly installed on the positioning plate 14. A pressure roller 144 is rotatably installed on the support frame 143. The servo motor 1451 installed on the controller 145 is the power source of the whole device and can ensure the winding of the ion exchange membrane.

[0035] Reference Figures 1-4A fixing plate 21 is fixedly installed on the bottom end of the bracket 2. A limiting plate 22 is fixedly installed on the fixing plate 21. A long plate 23 is rotatably installed on the limiting plate 22. A cylinder 231 is fixedly installed on the long plate 23. The fixing plate 21 installed on the bracket 2 realizes the limiting and fixing of the limiting plate 22, thereby completing the fixing of the cylinder 231.

[0036] Reference Figures 4-7 A connecting rod 232 is movably connected to the output end of cylinder 231. A connecting plate 233 is rotatably connected to the connecting rod 232. A shaft 7 is rotatably mounted on the other end of the connecting plate 233. A connecting block 8 is rotatably mounted on the shaft 7. The connecting block 8 is movably connected to the moving block 81. The connecting rod 232, located at the output end of cylinder 231, allows the position of the connecting rod 232 to change when the operator controls the extension and retraction of cylinder 231. The moving distance of the connecting block 8 can be adjusted by the connecting plate 233, thereby adjusting the tension of the ion exchange membrane during transport.

[0037] Reference Figures 4-8 A horizontal plate 6 is fixedly installed on the top of the bracket 2, and a hydraulic device 61 is fixedly installed on the horizontal plate 6. A housing 3 is fixedly installed on the side wall of the bracket 2, and a speed regulator 31 is rotatably installed inside the housing 3. The hydraulic device 61 is positioned and fixed by the horizontal plate 6 on the top of the bracket 2, so as to ensure its stability and safety during use.

[0038] Reference Figures 2-6 A detection plate 241 is fixedly installed on the support 2, a guide shaft 242 is rotatably installed on the detection plate 241, a detector 243 is slidably installed on the guide shaft 242, and a rotating shaft 24 is rotatably installed on the support 2, with the guide shaft 242 and the rotating shaft 24 being arranged parallel to each other. The detector 243 installed on the support 2 can perform real-time detection and processing of materials during the operation of the device to ensure the qualification rate of materials.

[0039] Reference Figures 3-7 A protective shell 4 is fixedly installed on the base plate 1, a controller 41 is fixedly installed inside the protective shell 4, a belt 42 is movably installed inside the protective shell 4, and a pressure reducer 5 is fixedly installed on the side wall of the bracket 2. The protective shell 4 installed on the base plate 1 can protect the equipment inside the controller 41.

[0040] Reference Figures 1-6 Both pressure roller 34 and pressure roller 25 are rotatably connected to pressure reducer 5. The distance between the two supports 2 is not less than the length of the winding shaft 142. By setting each pressure roller 34 and pressure roller 25 to be linked together, the normal operation of the device is ensured.

[0041] The specific steps of this solution are as follows: When using the device, the operator first moves it to a suitable position and fixes it in place. The support rods 11 set on the base plate 1 provide support for the device body. The distance between each support rod 11 is equal to ensure that each support rod 11 is subjected to uniform force, thereby ensuring the stability of the device during use and preventing damage to individual support rods 11 due to uneven force. Furthermore, placing them at the edge of the base plate 1 further prevents the device from tilting, ensuring safety during use. The material to be processed is placed on the device's take-up shaft 142. The servo motor 1451 is started, causing the controller 145 fixed at its output end to rotate. The material is then transferred through the pressure rollers 34 and 25 on the support 2, and further through the support... The cylinder 231 at the bottom can control the extension and retraction of the connecting rod 232, and control the sliding block 81 to slide horizontally through the connecting plate 233. The sliding moving block 81 can drive the limit block 83 to move. The connecting rod 232 set on the output end of the cylinder 231 can change the position of the connecting rod 232 when the operator controls the extension and retraction of the cylinder 231, and adjust the moving distance of the connecting block 8 through the connecting plate 233 to adjust the tension of the ion exchange membrane during transportation. In turn, it controls the movement of the control shaft 84 to adjust the tension of the ion exchange membrane during transmission. Furthermore, the spring 82 set between the moving block 81 and the limit block 83 can ensure that the limit block 83 has an elastic force change process during movement, avoiding irreversible damage to the ion exchange membrane and improving the stability of the device.

[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary. Under the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

[0043] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A high-precision adaptive tension continuous unwinding device for ion exchange membranes, comprising a base plate (1) and a controller (145), wherein a support (2) is fixedly mounted on the base plate (1), and two supports (2) are arranged parallel to each other, characterized in that... Also includes: The guiding unit includes a guide rail (12) fixedly mounted on the base plate (1), a slider (13) slidably mounted on the guide rail (12), a positioning plate (14) fixedly mounted on the slider (13), a vertical plate (141) fixedly mounted on the positioning plate (14), a winding shaft (142) rotatably mounted on the vertical plate (141), the winding shaft (142) being fixedly connected to the controller (145), a pressure roller (25) rotatably mounted between the two supports (2), a pressure roller (34) rotatably mounted on the supports (2), the pressure roller (25) and the pressure roller (34) being parallel to each other, and the guiding unit is used to unwind the ion exchange membrane; The tensioning unit includes a movable block (81) slidably disposed on the bracket (2), a spring (82) fixedly disposed on the movable block (81), a limit block (83) fixedly disposed on the other end of the spring (82), an adjustment shaft (84) rotatably disposed on the limit block (83), a buffer roller (841) fixedly disposed on the adjustment shaft (84), the buffer roller (841) and the pressure roller (25) are arranged parallel to each other, and the tensioning unit is used to tension the ion exchange membrane.

2. The high-precision adaptive tension continuous unwinding device for adapting ion exchange membranes according to claim 1, characterized in that, Support rods (11) are fixedly installed on the base plate (1). Each support rod (11) is arranged parallel to each other, and the distance between two adjacent support rods (11) is equal. Each support rod (11) is evenly distributed at the edge of the base plate (1).

3. The high-precision adaptive tension continuous unwinding device for adapting ion exchange membranes according to claim 1, characterized in that, A servo motor (1451) is fixedly installed on the controller (145), and the output end of the servo motor (1451) is connected to the winding shaft (142) for transmission. A support frame (143) is fixedly installed on the positioning plate (14), and a pressure roller (144) is rotatably installed on the support frame (143).

4. The high-precision adaptive tension continuous unwinding device for ion exchange membranes according to claim 1, characterized in that, A fixing plate (21) is fixedly installed on the bottom end of the bracket (2), a limiting plate (22) is fixedly installed on the fixing plate (21), a long plate (23) is rotatably installed on the limiting plate (22), and a cylinder (231) is fixedly installed on the long plate (23).

5. A high-precision adaptive tension continuous unwinding device for ion exchange membranes according to claim 4, characterized in that, A connecting rod (232) is movably connected to the output end of the cylinder (231), and a connecting plate (233) is rotatably connected to the connecting rod (232). A shaft (7) is rotatably arranged inside the other end of the connecting plate (233), and a connecting block (8) is rotatably arranged on the shaft (7). The connecting block (8) is movably connected to the moving block (81).

6. A high-precision adaptive tension continuous unwinding device for ion exchange membranes according to claim 1, characterized in that, A horizontal plate (6) is fixedly installed on the top of the bracket (2), a hydraulic device (61) is fixedly installed on the horizontal plate (6), a housing (3) is fixedly installed on the side wall of the bracket (2), and a speed regulator (31) is rotatably installed inside the housing (3).

7. A high-precision adaptive tension continuous unwinding device for ion exchange membranes according to claim 1, characterized in that, A detection plate (241) is fixedly mounted on the bracket (2), a guide shaft (242) is rotatably mounted on the detection plate (241), a detector (243) is slidably mounted on the guide shaft (242), and a rotating shaft (24) is rotatably mounted on the bracket (2), with the guide shaft (242) and the rotating shaft (24) being parallel to each other.

8. A high-precision adaptive tension continuous unwinding device for ion exchange membranes according to claim 1, characterized in that, A protective shell (4) is fixedly installed on the base plate (1), a controller (41) is fixedly installed inside the protective shell (4), a belt (42) is movably installed inside the protective shell (4), and a pressure reducer (5) is fixedly installed on the side wall of the bracket (2).

9. A high-precision adaptive tension continuous unwinding device for ion exchange membranes according to claim 8, characterized in that, Both the third pressure roller (34) and the second pressure roller (25) are rotatably connected to the pressure reducer (5).

10. A high-precision adaptive tension continuous unwinding device for ion exchange membranes according to claim 1, characterized in that, The distance between the two brackets (2) is not less than the length of the winding shaft (142).

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