Capacitance Film Rewinding and Unwinding Tension Adjusting Mechanism and Adjusting Method

Abstract

The present invention relates to the technical field of capacitor film production, and particularly to a tension adjustment mechanism and adjustment method for the winding and unwinding of capacitor films, which realizes precise control of the tension during the winding process of capacitor films and improves the winding stability of capacitor films. It includes: a support base fixedly arranged on the ground, and two winding support plates fixedly installed on the support base; a winding roller rotatably arranged between the two winding support plates for winding the capacitor film, and two quick-change mechanisms are arranged on the winding roller; two driving wheel discs respectively rotatably arranged on the two winding support plates for driving the winding roller to rotate; two wire speed adjustment mechanisms symmetrically arranged on the support base for controlling the rotation of the two driving wheel discs and adjusting the rotation speed of the driving wheel discs; a pressure roller rotatably arranged between the two wire speed adjustment mechanisms and the pressure roller is arranged below the winding roller; wherein, the wire speed adjustment mechanism includes: a motor fixedly installed on the winding support plate; a transmission shaft tightly connected to the output end of the motor.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitor film production, and particularly to a tension adjusting mechanism and method for winding and unwinding capacitor films. Background Art

[0002] In the production and processing of capacitor films, the winding and unwinding operations are essential links. Due to its unique electrical and physical properties, capacitor films are widely used in multiple fields such as electronics, communication, and energy storage. However, during the winding and unwinding process of capacitor films, due to the elasticity and viscosity of the material itself and the influence of external environmental factors, problems such as uneven tension, curling, and stretching deformation are likely to occur, thus affecting the product quality and subsequent processing effects.

[0003] Most traditional capacitor film winding and unwinding devices adopt simple mechanical structures, such as a single winding roller and a driving motor, lacking precise tension adjustment mechanisms. When the existing winding devices are in use, the capacitor film is wound around the receiving shaft. As the capacitor film continues to wind, the outer diameter of the capacitor film roll gradually increases. Therefore, the peripheral linear velocity of the capacitor film roll will gradually change. The change in linear velocity will cause a speed difference between the winding speed and the conveying speed of the capacitor film. As the outer diameter of the capacitor film roll increases, the tension of the capacitor film will gradually increase. If the diameter of the capacitor film roll is large enough, it will cause the capacitor film to break, resulting in poor use stability. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a tension adjusting mechanism and method for winding and unwinding capacitor films, which realizes precise control of the tension during the winding process of capacitor films and improves the winding stability of capacitor films.

[0005] The tension adjusting mechanism for winding and unwinding capacitor films of the present invention includes:

[0006] A support base, fixedly arranged on the ground, and two winding support plates are fixedly installed on the support base;

[0007] A winding roller, rotatably arranged between the two winding support plates for winding the capacitor film, and two quick-change mechanisms are arranged on the winding roller;

[0008] Two driving wheel discs, respectively rotatably arranged on the two winding support plates for driving the winding roller to rotate;

[0009] Two linear velocity adjusting mechanisms, symmetrically arranged on the support base, for controlling the rotation of the two driving wheel discs and adjusting the rotational speed of the driving wheel discs;

[0010] A pressure roller, rotatably arranged between the two linear velocity adjusting mechanisms, and the pressure roller is arranged below the winding roller;

[0011] Among them, the line speed adjustment mechanism includes:

[0012] A motor, fixedly installed on the winding support plate;

[0013] A transmission shaft, tightly connected to the output end of the motor. The transmission shaft is a hexagonal prism, and a sliding sleeve is sleeved on the transmission shaft;

[0014] A driving wheel, rotatably arranged on the sliding sleeve, driven by the motor to rotate. The driving wheel is attached to the side end of the transmission wheel disc and is used to drive the transmission wheel disc to rotate;

[0015] A bearing slider, slidably arranged in the winding support plate, fixedly connected to the sliding sleeve, and a pressure roller is rotatably installed on the bearing slider.

[0016] For the capacitance film winding and unwinding tension adjustment mechanism of the present invention, the quick-change mechanism includes:

[0017] A reel clamping block, fixedly installed on the winding roller;

[0018] A quick-change seat, rotatably arranged on the winding support plate;

[0019] Two quick-change clamping blocks, slidably arranged up and down relatively on the quick-change seat for clamping the reel clamping block;

[0020] A locking sleeve, slidably sleeved on the quick-change seat for clamping the reel clamping block and the quick-change clamping block;

[0021] A fixing bolt, threadedly inserted on the locking sleeve for locking and fixing the locking sleeve.

[0022] For the capacitance film winding and unwinding tension adjustment mechanism of the present invention, the quick-change mechanism further includes:

[0023] A top plate, horizontally slidably arranged inside the quick-change seat. The upper and lower ends of the top plate are respectively in oblique clamping and sliding fit with the two quick-change clamping blocks;

[0024] A first elastic spring piece, fixedly installed in the quick-change seat and fixedly connected to the top plate.

[0025] For the capacitance film winding and unwinding tension adjustment mechanism of the present invention, the winding roller further includes:

[0026] A pressing plate, which is covered on the winding roller and is used to press and fix the end of the capacitance film.

[0027] For the capacitance film winding and unwinding tension adjustment mechanism of the present invention, a handle groove is provided on the pressing plate.

[0028] For the capacitance film winding and unwinding tension adjustment mechanism of the present invention, the winding roller further includes:

[0029] A locking plate, fixedly installed on the pressing plate;

[0030] The rotating rod carriage is slidably arranged up and down on the lock plate;

[0031] The rotating rod is rotatably installed on the rotating rod carriage;

[0032] The locking groove is arranged inside the winding roller, and the top of the locking groove is wavy;

[0033] The second elastic shrapnel is fixedly installed on the lock plate and fixedly connected to the rotating rod carriage.

[0034] For the capacitance film winding and unwinding tension adjusting mechanism of the present invention, the driving wheel disc further includes:

[0035] The dynamometer is fixedly installed in the driving wheel disc;

[0036] The torsion spring is fixedly installed at the side end of the quick-change seat and fixedly connected to the dynamometer.

[0037] For the capacitance film winding and unwinding tension adjusting mechanism of the present invention, the wire speed adjusting mechanism further includes:

[0038] The hydraulic tank is fixedly installed on the support seat;

[0039] The piston rod is fixedly installed at the bottom end of the bearing slider and is hermetically slidably arranged in the hydraulic tank;

[0040] The hydraulic pump is fixedly installed on the support seat, communicates with the hydraulic tank, and is used to control the hydraulic strength inside the hydraulic tank;

[0041] The oil inlet pipe communicates with the hydraulic tank and is used to transport hydraulic oil.

[0042] For the adjusting method of the capacitance film winding and unwinding tension adjusting mechanism of the present invention, the method includes:

[0043] According to the conveying speed and required tension of the capacitance film, set the winding speed of the winding roller on the winding mechanism;

[0044] Start the hydraulic pump, transport hydraulic oil into the hydraulic tank through the oil inlet pipe, adjust the oil inlet volume and pressure of the hydraulic pump, so that the hydraulic strength inside the hydraulic tank reaches the initial set value, and make the pressure roller in the initial position;

[0045] Wind the capacitance film through the winding roller to obtain a capacitance film roll, and at the same time, obtain the tension of the capacitance film in real time;

[0046] According to the growth of the diameter of the capacitance film roll, adaptively adjust the rotation speed of the winding roller to maintain a constant tension of the capacitance film;

[0047] In response to the capacitance film tension exceeding the preset tension threshold, reduce the oil inlet volume and pressure of the hydraulic pump, reduce the pressure of the pressure roller on the capacitance film, and reduce the tension of the capacitance film;

[0048] When the tension of the capacitive film is less than the preset tension threshold, increase the oil intake and pressure of the hydraulic pump, improve the pressure of the pressure roller on the capacitive film, and increase the tension of the capacitive film;

[0049] After the capacitive film winding is completed, remove the capacitive film roll together with the winding roller.

[0050] For the adjustment method of the tension adjustment mechanism of the capacitive film winding and unwinding of the present invention, the influencing factors for setting the preset tension threshold include the material properties of the capacitive film, the winding speed, the linear speed, the diameter change of the winding roller, the pressure of the pressure roller, and the production process requirements.

[0051] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0052] Utilize the hexagonal prism design of the transmission shaft and the sliding function of the sliding sleeve to realize the fine adjustment of the contact position between the driving wheel and the transmission wheel disc, and then fine-tune the rotation speed of the transmission wheel disc to adapt to different tension requirements; achieve precise control of the tension during the winding process of the capacitive film, effectively solve problems such as uneven tension, curling, and stretching deformation in the existing problems, and improve the winding stability of the capacitive film. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The present invention will be further described below with reference to the accompanying drawings.

[0054] Figure 1 is the structural schematic diagram of the present invention;

[0055] Figure 2 is the structural schematic diagram of the winding roller installation;

[0056] Figure 3 is the enlarged structural schematic diagram of the linear speed adjustment mechanism;

[0057] Figure 4 is the enlarged structural schematic diagram of the quick-change seat;

[0058] Figure 5 is the sectional structural schematic diagram of the quick-change seat;

[0059] Figure 6 is the sectional structural schematic diagram of the winding roller;

[0060] Figure 7 is the structural schematic diagram of the dynamometer and torsion spring installation;

[0061] Reference numerals in the drawings: 1, support base; 11, winding support plate; 2, winding roller; 21, reel clamping block; 22, quick-change seat; 23, quick-change clamping block; 24, locking sleeve; 25, fixing bolt; 26, ejector plate; 27, first elastic shrapnel; 2a, pressing plate; 2b, locking plate; 2c, rotating rod carriage; 2d, rotating rod; 2e, locking groove; 2f, second elastic shrapnel; 3, driving wheel disc; 31, dynamometer; 32, torsion spring; 4, wire speed adjusting mechanism; 41, motor; 42, transmission shaft; 43, driving wheel; 44, bearing slider; 45, hydraulic tank; 46, piston rod; 47, hydraulic pump; 48, oil inlet pipe; 5, pressure roller. Detailed implementation manners

[0062] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0063] As Figures 1 to 7 shown, the capacitance film winding and unwinding tension adjusting mechanism of the present invention includes:

[0064] A support base 1, fixedly arranged on the ground, and two groups of winding support plates 11 are fixedly installed on the support base 1;

[0065] A winding roller 2, rotatably arranged between the two groups of winding support plates 11 for winding the capacitance film, and two quick-change mechanisms are arranged on the winding roller 2;

[0066] Two driving wheel discs 3, respectively rotatably arranged on the two winding support plates 11 for driving the winding roller 2 to rotate;

[0067] Two wire speed adjusting mechanisms 4, symmetrically arranged on the support base 1 for controlling the rotation of the two driving wheel discs 3 and adjusting the rotation speed of the driving wheel discs 3;

[0068] A pressure roller 5, rotatably arranged between the two wire speed adjusting mechanisms 4, and the pressure roller 5 is arranged below the winding roller 2;

[0069] Among them, the wire speed adjusting mechanism 4 includes:

[0070] A motor 41, fixedly installed on the winding support plate 11;

[0071] A transmission shaft 42, tightly connected to the output end of the motor 41. The transmission shaft 42 is a hexagonal prism, and a sliding sleeve is sleeved on the transmission shaft 42;

[0072] A driving wheel 43, rotatably arranged on the sliding sleeve, driven to rotate by the motor 41. The driving wheel 43 is in contact with the side end of the driving wheel disc 3 for driving the driving wheel disc 3 to rotate;

[0073] The bearing slider 44 is slidably disposed in the winding support plate 11 and fixedly connected to the sliding sleeve. The pressure roller 5 is rotatably mounted on the bearing slider 44.

[0074] The working process and principle of the device are as follows: in the initial state, the capacitor film passes over the pressure roller 5, is slightly flattened by the pressure roller 5, and then is wound around the winding roller 2; the motor 41 is in standby mode, and the transmission shaft 42, the driving wheel 43 and the driving wheel disc 3 are all stationary; the bearing slider 44 and the pressure roller 5 thereon are maintained at an appropriate height according to the initial set position; when it is necessary to start winding, the motor 41 is started, and the driving wheel 43 is driven to rotate through the transmission shaft 42; the driving wheel 43 is in contact with the side end of the driving wheel disc 3, thereby driving the driving wheel disc 3 to rotate; the driving wheel disc 3 further drives the winding roller 2 to rotate and starts to wind up the capacitor film; as the outer diameter of the capacitor film roll on the winding roller 2 gradually increases, the edge linear speed of the capacitor film roll will change. changes, resulting in increased tension; at the same time, the capacitor film roll with an increased outer diameter will push the pressure roller 5 downward, and then the pressure roller drives the driving wheel 43 to slide downward along the transmission shaft 42 through the bearing slider 44. As the driving wheel 43 gradually moves away from the center of the transmission wheel 3, the rotation speed of the transmission wheel 3 will be fine-tuned to adapt to different tension requirements; the hexagonal prism design of the transmission shaft 42 and the sliding function of the sleeve are utilized to achieve fine-tuning of the contact position between the driving wheel 43 and the transmission wheel 3, and then fine-tune the rotation speed of the transmission wheel 3 to adapt to different tension requirements; precise control of the tension in the process of winding the capacitor film is achieved, effectively solving the existing problems of uneven tension, curling, stretching deformation, etc., and improving the winding stability of the capacitor film.

[0075] After the capacitor film is wound up, the capacitor film roll and the winding roller 2 used for the winding operation need to be disassembled and replaced with a new winding roller 2 to facilitate the next winding operation. Therefore, a quick-change mechanism is required to achieve the effect of quickly disassembling and assembling the winding roller 2. The quick-change mechanism includes:

[0076] The reel clamping block 21 is fixedly mounted on the reeling roller 2;

[0077] The quick-change seat 22 is rotatably disposed on the winding support plate 11;

[0078] Two quick-change clamping blocks 23 are arranged on the quick-change seat 22 to slide relative to each other up and down, and are used to clamp the reel clamping block 21;

[0079] The locking sleeve 24 is slidably mounted on the quick-change seat 22 and is used to clamp the reel clamping block 21 and the quick-change clamping block 23;

[0080] A fixing bolt 25 is threadedly inserted into the locking sleeve 24 and is used to lock and fix the locking sleeve 24;

[0081] The working process and principle of the quick-change mechanism are as follows: The reel clamping block 21 has been pre-fixed and installed on the winding roller 2, which is a key component for connecting the winding roller 2 and the quick-change mechanism; the quick-change seat 22 is rotatably arranged on the winding support plate 11, providing a stable installation platform for the quick-change clamping block 23 and the locking sleeve 24; when it is necessary to replace or install the winding roller 2, first align the reel clamping block 21 of the winding roller 2 with the opening of the quick-change seat 22; then, operate the quick-change clamping block 23 to slide up and down relatively on the quick-change seat 22 until the quick-change clamping block 23 clamps the reel clamping block 21; next, slide the locking sleeve 24 sleeved on the quick-change seat 22 and make it tighten the reel clamping block 21 and the quick-change clamping block 23 to ensure close contact and stable connection between them; finally, by rotating the fixing bolt 25, thread it into the locking sleeve 24 and lock the locking sleeve 24 to complete the firm connection between the winding roller 2 and the quick-change mechanism; when the capacitor film is wound up and needs to be replaced, loosen the fixing bolt 25, then horizontally slide the locking sleeve 24 to make the locking sleeve 24 disengage from the state of tightening the reel clamping block 21 and the quick-change clamping block 23, and then pull the two quick-change clamping blocks 23 in the up and down directions respectively to separate the quick-change clamping block 23 from the reel clamping block 21, and then horizontally pull the capacitor film roll to pull out the reel clamping block 21 from the quick-change seat 22; this quick-change mechanism realizes the quick and stable connection between the winding roller 2 and the quick-change mechanism, making the replacement of the winding roller 2 simple and fast, and improving the convenience of operation.

[0082] The quick-change mechanism further includes:

[0083] A top plate 26, horizontally slidably arranged inside the quick-change seat 22, and the upper and lower ends of the top plate 26 are respectively in oblique clamping and sliding fit with the two quick-change clamping blocks 23;

[0084] A first elastic shrapnel 27, fixedly installed in the quick-change seat 22 and fixedly connected to the top plate 26;

[0085] Push the reel clamping block 21 into the quick-change seat 22; during this process, the ejector plate 26 will be squeezed by the reel clamping block 21 and move inward, while compressing the first elastic shrapnel 27; when the reel clamping block 21 completely enters the quick-change seat 22, the ejector plate 26 will also be pressed to move inward, overcoming the elastic force of the first elastic shrapnel 27. When the quick-change clamping block 23 completely clamps the reel clamping block 21, the ejector plate 26 also reaches the end of its moving stroke. The upper and lower ends of the ejector plate 26 are respectively in inclined clamping sliding fit with the two quick-change clamping blocks 23, causing the quick-change clamping blocks 23 to move inward, thereby clamping the reel clamping block 21; to withdraw the reel clamping block 21 from the quick-change seat 22, only need to remove the lock sleeve 24, and then under the elastic force of the first elastic shrapnel 27, the ejector plate 26 will be pushed to move outward. Then the upper and lower ends of the ejector plate 26 are respectively in inclined clamping sliding fit with the two quick-change clamping blocks 23, causing the quick-change clamping blocks 23 to move outward, releasing the reel clamping block 21, and then removing the take-up roller 2; the inclined clamping structure at the upper and lower ends of the ejector plate 26 enables the ejector plate 26 to push the two quick-change clamping blocks 23 to slide towards or away from each other when the ejector plate 26 moves, realizing the function of clamping or releasing the reel clamping block 21; the first elastic shrapnel 27 provides an outward elastic force for the ejector plate 26 to keep it in the initial state without external force; when it is necessary to clamp the reel clamping block 21, it is necessary to overcome this elastic force to push the ejector plate 26; through the cooperation of the ejector plate 26 and the quick-change clamping blocks 23, and the locking effect of the lock sleeve 24 and the fixing bolt 25, the quick replacement function of the take-up roller 2 is realized, improving the work efficiency; the ejector plate 26 and the first elastic shrapnel 27 in the quick-change mechanism realize the functions of quickly clamping and releasing the take-up roller 2 through the principle of inclined clamping sliding fit and elastic force drive, providing convenience for the winding and unwinding operation of the capacitor film.

[0086] As Figures 1 to 2 shown, the take-up roller 2 further includes:

[0087] A pressing plate 2a, which is covered and arranged on the take-up roller 2 and is used to press and fix the end of the capacitor film; the pressing plate 2a and the take-up roller 2 cooperate to form a complete circumferential surface;

[0088] Place one end of the capacitor film to be rolled up at the starting position of the winding roller 2 to ensure that the end of the film is flat; cover the end of the winding roller 2 with the pressure plate 2a to ensure that the pressure plate 2a tightly presses the end of the capacitor film; ensure that the pressure plate 2a is completely in contact with the end surface of the winding roller 2 without any gap or looseness to prevent the capacitor film from deflecting or curling during the winding process; the pressure plate 2a plays a key role in the initial stage of winding, ensuring that the end of the capacitor film is always in contact with the winding roller 2 during the winding process to prevent loosening or deviation; as the winding proceeds, the capacitor film gradually covers the entire winding roller 2, and the effect of the pressure plate 2a gradually weakens, but it can still provide additional stability; the pressure plate 2a cooperates with the winding roller 2 to form a complete circular surface, ensuring that the capacitor film can be flatly attached to the winding roller 2 at the initial stage of winding to avoid curling or wrinkles; the additional stability provided by the pressure plate 2a helps to improve the overall quality of the capacitor film during the winding process and reduce defects caused by loose ends.

[0089] A finger-holding groove is provided on the pressure plate 2a; the finger-holding groove provides a convenient fulcrum, so that the operator can easily pick up, move or install the pressure plate 2a; when the pressure plate 2a needs to be covered on the winding roller 2 to compress the capacitor film, the operator can apply force through the finger-holding groove to make the pressure plate 2a fit firmly on the winding roller, so that the operator can complete the installation and removal of the pressure plate 2a more easily and safely, which is convenient for operation, enhances stability and improves safety.

[0090] like Figure 6 As shown, the winding roller 2 also includes:

[0091] The locking plate 2b is fixedly mounted on the pressing plate 2a;

[0092] The rotating rod slide 2c is slidably arranged on the locking plate 2b;

[0093] A rotating rod 2d is rotatably mounted on the rotating rod slide 2c;

[0094] A locking groove 2e is arranged inside the winding roller 2, and the top of the locking groove 2e is arranged in a wave shape;

[0095] The second elastic spring sheet 2f is fixedly mounted on the lock plate 2b and is fixedly connected to the rotating rod slide 2c;

[0096] The locking plate 2b is fixedly installed on the pressing plate 2a, and the two form an integral whole; the rotating rod carriage 2c can slide freely up and down on the locking plate 2b, and at the same time, under the elastic force of the second elastic shrapnel 2f, it maintains an upward initial position; the rotating rod 2d is rotatably installed on the rotating rod carriage 2c and can rotate around its axis; the locking groove 2e is arranged inside the winding roller 2, the top of which is designed in a wavy shape, and there is an inclined guide surface at the top of the inner end for guiding the rotating rod 2d to enter or exit the locking position; the second elastic shrapnel 2f is fixedly installed on the locking plate 2b and is connected to the rotating rod carriage 2c to provide an upward elastic force for the rotating rod carriage; when it is necessary to fix the end of the capacitor film on the winding roller 2, first cover the pressing plate 2a together with the locking plate 2b on the winding roller, so that the pressing plate 2a and the winding roller 2 cooperate to form a complete circumferential surface; then, the rotating rod carriage 2c is pushed downward through the cooperation of the locking groove 2e and the rotating rod 2d, overcoming the elastic force of the second elastic shrapnel 2f; as the rotating rod carriage 2c descends, the rotating rod 2d will also descend and slide along the end face of the locking groove 2e; the rotating rod 2d is caught by the groove of the locking groove 2e, and at the same time, under the elastic force of the second elastic shrapnel 2f, the rotating rod 2d is fitted with the locking groove 2e to achieve the locking function, which not only improves the production efficiency but also ensures the stability of the capacitor film during the winding process.

[0097] As Figure 7 shown, the transmission wheel disc 3 further includes:

[0098] The dynamometer 31 is fixedly installed in the transmission wheel disc 3;

[0099] The torsion spring 32 is fixedly installed at the side end of the quick-change seat 22 and is fixedly connected to the dynamometer 31;

[0100] In this mechanism, one end of the torsion spring 32 is fixedly connected to the quick-change seat 22, and the other end is connected to the dynamometer 31; when the capacitor film generates tension during the winding process, this tension is transmitted to the torsion spring 32 through the transmission wheel disc 3, causing it to twist; the degree of torsion of the torsion spring 32 is proportional to the stored torsional energy, and this energy is transmitted to the dynamometer through the connection between the torsion spring and the dynamometer 31, enabling it to measure this force; the dynamometer 31 and the torsion spring 32 in the transmission wheel disc 3 work together to indirectly measure the tension of the capacitor film during the winding process by measuring the elastic force of the torsion spring and feedback this information to the control system to adjust the rotational speed of the line speed adjustment mechanism 4 in real time, so as to maintain the stability of the film tension; it helps to solve problems such as uneven tension, curling, and stretching deformation in traditional winding and unwinding equipment, and improves the quality of products and subsequent processing effects.

[0101] As Figures 1 to 3 shown, the line speed adjustment mechanism 4 further includes:

[0102] The hydraulic tank 45 is fixedly installed on the support base 1; it stores hydraulic oil and provides the necessary medium for the hydraulic system;

[0103] The piston rod 46 is fixedly installed at the bottom end of the bearing slider 44 and is hermetically and slidably arranged in the hydraulic tank 45; as an actuator of the hydraulic system, it converts hydraulic energy into mechanical energy to push or pull the bearing slider 44 and the pressure roller 5 to move.

[0104] The hydraulic pump 47 is fixedly installed on the support base 1 and is interconnected with the hydraulic tank 45, and is used to control the hydraulic intensity inside the hydraulic tank 45; it provides power for the hydraulic system and generates hydraulic pressure by pumping and compressing hydraulic oil.

[0105] The oil inlet pipe 48 is connected to the hydraulic tank 45 and is used to transport hydraulic oil.

[0106] The hydraulic oil is transported into the hydraulic tank 45 through the oil inlet pipe 48 for storage; when it is necessary to adjust the pressure of the pressure roller 5 on the capacitor film, the hydraulic pump 47 starts to work; it pumps the hydraulic oil in the hydraulic tank 45 and generates hydraulic pressure by compression; the generated hydraulic pressure is transmitted to the piston rod 46 through the hydraulic oil; by adjusting the working state of the hydraulic pump 47, the hydraulic intensity inside the hydraulic tank 45 can be controlled, so as to achieve precise adjustment of the thrust of the piston rod 46; the force of the piston rod is transmitted to the pressure roller 5 through the bearing slider 44; when the pressure roller 5 has a tendency to move upward, it will increase the pressure on the capacitor film, thereby increasing the winding tightness; on the contrary, when the pressure roller 5 is not stressed or has a tendency to move downward, the pressure on the capacitor film will be reduced, and the winding tightness will be reduced; the hydraulic part of the wire speed adjustment mechanism 4 realizes the control of the pressure roller 5 through the transportation of hydraulic oil, the generation and adjustment of pressure, and the movement of the piston rod, and then adjusts the winding tightness of the capacitor film roll; it helps to improve the stability and efficiency of the winding and unwinding operations and ensure the quality of the capacitor film and the subsequent processing effect.

[0107] The adjustment method of the winding and unwinding tension adjustment mechanism of the capacitor film of the present invention includes:

[0108] According to the conveying speed of the capacitor film and the required tension, set the winding speed of the winding roller on the winding mechanism.

[0109] Start the hydraulic pump, transport the hydraulic oil into the hydraulic tank through the oil inlet pipe, adjust the oil intake and pressure of the hydraulic pump, so that the hydraulic intensity inside the hydraulic tank reaches the initial set value, and make the pressure roller in the initial position.

[0110] Wind the capacitor film through the winding roller to obtain a capacitor film roll, and at the same time, obtain the tension of the capacitor film in real time.

[0111] According to the growth of the diameter of the capacitor film roll, adaptively adjust the rotation speed of the winding roller to maintain a constant tension of the capacitor film.

[0112] When the tension of the capacitive film exceeds the preset tension threshold, reduce the oil intake and pressure of the hydraulic pump, decrease the pressure of the pressure roller on the capacitive film, and reduce the tension of the capacitive film;

[0113] When the tension of the capacitive film is less than the preset tension threshold, increase the oil intake and pressure of the hydraulic pump, increase the pressure of the pressure roller on the capacitive film, and increase the tension of the capacitive film;

[0114] After the winding of the capacitive film is completed, remove the capacitive film roll together with the winding roller.

[0115] This method can accurately control the tension of the film by obtaining the tension of the capacitive film in real time and adaptively adjusting the rotation speed of the winding roller and the pressure of the pressure roller according to the change of the tension; it helps to ensure the flatness and tightness of the film during the winding process and improve the product quality; this method realizes the automatic control of the unwinding and winding process through the coordinated work of components such as the hydraulic pump, hydraulic tank, winding roller and pressure roller; it not only improves the production efficiency, but also reduces the complexity and labor intensity of manual operation; this method can be flexibly adjusted according to parameters such as the material properties of the capacitive film, conveying speed and required tension, so it has strong adaptability; whether it is different types of capacitive films or different production requirements, this method can be satisfied; because this method adopts automatic control and real-time monitoring technology, it can timely detect and handle abnormal situations during the winding process, such as too large or too small tension, etc.; this timely fault handling helps to reduce the risk of equipment damage and production interruption and improve the stability and reliability of the equipment.

[0116] The influencing factors for setting the preset tension threshold include:

[0117] Material properties of the capacitive film: Capacitive films of different materials have different elastic moduli, strengths and toughnesses; these properties will directly affect the tension performance of the film during winding; therefore, when selecting the preset tension threshold, the material properties of the film must be fully considered to ensure that the tension is controlled within a suitable range;

[0118] Winding speed: The faster the winding speed, the greater the dynamic tension on the film; when setting the preset tension threshold, the winding speed needs to be considered;

[0119] Linear speed: The change of the linear speed will affect the tension performance of the film; therefore, when setting the preset tension threshold, the influence of the linear speed needs to be considered to ensure the stability and accuracy of tension control;

[0120] Diameter change of the take-up roller: As the take-up process progresses, the diameter of the take-up roller gradually increases; this causes changes in the tension on the film; in order to maintain a constant tension, it is necessary to adaptively adjust the take-up speed according to the diameter change of the take-up roller; therefore, the setting of the preset tension threshold also needs to consider the influence of the diameter change of the take-up roller;

[0121] Pressure of the pressure roller: The pressure roller controls the tension of the film by applying pressure; the oil intake and pressure of the hydraulic pump determine the magnitude of the pressure exerted by the pressure roller on the film; therefore, when setting the preset tension threshold, it is necessary to consider the flexibility and accuracy of the pressure adjustment of the pressure roller to ensure the accuracy of tension control;

[0122] Production process requirements: Different production processes have different requirements for the tension of the film; for example, some processes require the film to have a high degree of flatness and a tight winding structure, which requires the setting of the preset tension threshold to be more precise and stable.

[0123] In this step, by comprehensively considering various influencing factors, the preset tension threshold can be set more accurately, thereby achieving precise control of the tension of the capacitor film; it helps to ensure the flatness and tightness of the film during the take-up process and meet the production requirements; due to considering multiple factors, the setting of the preset tension threshold is more flexible and can adapt to different types of capacitor films, different production speeds, and different production process requirements; this enhances the adaptability and flexibility of the system, improves production efficiency and product quality; precise tension control helps to reduce the risk of equipment damage and production interruption caused by excessive or too little tension; at the same time, by optimizing the setting of the preset tension threshold, unnecessary material waste and energy consumption can be reduced, thereby reducing production costs; precise tension control and a stable production process help to improve the quality of the capacitor film; this includes improving the flatness of the film, reducing defects such as wrinkles and bubbles, and ensuring that the winding structure of the film is tight and uniform.

[0124] For the capacitor film take-up and pay-off tension adjustment mechanism and adjustment method of the present invention, its installation method, connection method, or setting method are all common mechanical methods, and any implementation that can achieve its beneficial effects can be carried out.

[0125] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A capacitor film winding and unwinding tension adjustment mechanism, characterized in that: include: A support base is fixedly arranged on the ground, and two sets of winding support plates are fixedly installed on the support base; A winding roller is rotatably arranged between the two sets of winding support plates and is used to wind up the capacitor film. The winding roller is provided with two quick-change mechanisms; Two transmission wheels are rotatably arranged on the two winding support plates respectively, and are used to drive the winding roller to rotate; Two linear speed adjustment mechanisms are symmetrically arranged on the support seat, and are used to control the rotation of the two transmission wheels and adjust the rotation speed of the transmission wheels; A pressure roller is rotatably arranged between the two line speed adjustment mechanisms, and the pressure roller is arranged below the winding roller; Wherein, the line speed adjustment mechanism comprises: A motor, fixedly mounted on the winding support plate; A transmission shaft is tightly connected to the output end of the motor, the transmission shaft is a hexagonal prism, and a sliding sleeve is set on the transmission shaft; A driving wheel is rotatably arranged on the sliding sleeve and driven to rotate by the motor, and the driving wheel is in contact with the side end of the transmission wheel disc to drive the transmission wheel disc to rotate; A bearing slider is slidably arranged in the winding support plate and fixedly connected to the sliding sleeve, and a pressure roller is rotatably mounted on the bearing slider; The quick-change mechanism comprises: A reel clamping block, fixedly mounted on the reeling roller; A quick-change seat, rotatably disposed on the winding support plate; Two quick-change clamping blocks are arranged on the quick-change seat for vertical relative sliding movement and are used for clamping the reel clamping block; A locking sleeve, slidably mounted on the quick-change seat, for clamping the reel clamping block and the quick-change clamping block; A fixing bolt, threadedly inserted into the locking sleeve, for locking and fixing the locking sleeve; The quick-change mechanism also includes: An ejector plate is horizontally slidably arranged inside the quick-change seat, and the upper and lower ends of the ejector plate are respectively obliquely clamped and slidably matched with the two quick-change clamping blocks; A first elastic spring sheet is fixedly installed in the quick-change seat and is fixedly connected to the ejection plate; The winding roller also includes: A pressure plate is cover mounted on the winding roller and is used to press and fix the end of the capacitor film.

2. The capacitor film reeling and unreeling tension adjustment mechanism according to claim 1, characterized in that: The pressing plate is provided with a hand-grip groove.

3. The capacitor film reeling and unreeling tension adjustment mechanism according to claim 1, characterized in that: The winding roller also includes: A locking plate, fixedly mounted on the pressing plate; A rotating rod slide, slidably disposed up and down on the locking plate; A rotating rod, rotatably mounted on the rotating rod slide; A locking groove is arranged inside the winding roller, and the top of the locking groove is arranged in a wave shape; The second elastic spring sheet is fixedly mounted on the locking plate and is fixedly connected to the rotating rod slide.

4. The capacitor film reeling and unreeling tension adjustment mechanism according to claim 1, characterized in that: The transmission wheel also includes: A dynamometer, fixedly mounted in the transmission wheel; The torsion spring is fixedly mounted on the side end of the quick-change seat and is fixedly connected to the dynamometer.

5. The capacitor film reeling and unreeling tension adjustment mechanism according to claim 1, characterized in that: The line speed adjustment mechanism also includes: A hydraulic box, fixedly mounted on the support seat; A piston rod is fixedly mounted on the bottom end of the bearing slider and is sealingly slidably arranged in the hydraulic box; A hydraulic pump, fixedly mounted on the support seat, communicated with the hydraulic box, and used to control the hydraulic strength inside the hydraulic box; An oil inlet pipe is connected to the hydraulic box and is used for conveying hydraulic oil.

6. The method for adjusting the tension adjustment mechanism of capacitor film reeling and unreeling as claimed in claim 1, characterized in that: include: According to the conveying speed and required tension of the capacitor film, set the winding speed of the winding roller on the winding mechanism; Start the hydraulic pump, deliver the hydraulic oil to the hydraulic box through the oil inlet pipe, adjust the oil inlet volume and pressure of the hydraulic pump, make the hydraulic strength inside the hydraulic box reach the initial setting value, and make the pressure roller in the initial position; The capacitor film is rolled up by a winding roller to obtain a capacitor film roll, and the tension of the capacitor film is obtained in real time; According to the diameter growth of the capacitor film roll, the speed of the winding roller is adaptively adjusted to maintain a constant tension of the capacitor film; In response to the capacitor film tension exceeding a preset tension threshold, the oil intake and pressure of the hydraulic pump are reduced, the pressure of the pressure roller on the capacitor film is reduced, and the tension of the capacitor film is reduced; In response to the capacitor film tension being less than a preset tension threshold, the oil intake and pressure of the hydraulic pump are increased, the pressure of the pressure roller on the capacitor film is increased, and the tension of the capacitor film is increased; After the capacitor film is rolled up, the capacitor film roll and the winding roller are removed together.

7. The method for adjusting the tension adjustment mechanism of the capacitor film reeling and unreeling as claimed in claim 6, characterized in that: The factors affecting the setting of the preset tension threshold include the material properties of the capacitor film, the winding speed, the line speed, the diameter change of the winding roller, the pressure of the pressure roller and the production process requirements.

Images