A winding device for producing a coated separator

Abstract

The application discloses a kind of winding devices for coating diaphragm production, it is related to diaphragm processing field, including pedestal, be set to the two support plates of pedestal top parallel arrangement, be sequentially arranged in the internal buffering device of two support plates, winding device and discharge device, buffering device includes several first guide pulleys distributed on support plate, be arranged in the tension control component for adjusting tension above first guide pulley, be arranged in the limiting component for adjusting diaphragm deviation in first guide pulley side, winding device includes the drive component for being arranged in limiting component far from first guide pulley, be arranged in the connecting component for connecting drive component for receiving drive component bottom, discharge device includes the material replacement component for being arranged in winding device far from buffering device one side, reel component carried by material replacement component, the application is a kind of coating diaphragm production winding device for controlling diaphragm tension when changing roll.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of diaphragm processing, in particular to a winding device for coating diaphragm production. BACKGROUND

[0002] Coated diaphragm is an indispensable important component in battery. In recent years, due to the large-scale application of lithium ion battery, especially power battery, higher requirements are put forward for the energy density, cycle performance, charge and discharge current density and safety performance of the battery. The improvement of diaphragm performance plays a crucial role in improving the comprehensive performance of the battery. The traditional diaphragm or film industry (such as lithium battery diaphragm) generally uses contact winding and non-contact winding on the winding machine. The contact winding mainly relies on tension to control the quality of the wound film, and the non-contact winding is also called gap winding. The tension control is also very important. However, the speed of the external diaphragm conveying device often fluctuates during winding, and the diaphragm tension is difficult to control. Therefore, a winding device for coating diaphragm production is needed, which can accurately adjust the tension of the diaphragm during winding.

[0003] According to the lithium battery diaphragm winding machine provided in the application number 201811285781.8, the traction roller assembly for traction of the cut edge diaphragm to the front and adjustment of the diaphragm tension, the floating roller assembly for controlling the flatness of the diaphragm winding, and the film breaking device for melting the diaphragm during roll changing. The lithium battery diaphragm winding machine can improve the flatness of the diaphragm winding, reduce the transmission energy consumption, reduce the amount of waste film during film breaking, and avoid the phenomenon of choking during roll changing, ensure the stability of the diaphragm tension, and improve the winding effect.

[0004] The above patent document solves the tension control problem of single diaphragm during winding, but cannot solve the problem of sudden relaxation of the front end of the diaphragm during roll changing, which leads to sudden change of tension. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a winding device for coating diaphragm production to solve the technical problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A winding device for coating diaphragm production, comprising a base, two parallel support plates arranged on the top of the base, a buffer device, a winding device and a discharge device arranged in the interior of the two support plates in sequence;

[0008] The buffer device comprises a plurality of first guide rollers distributed on the support plates, a tension control component arranged above the first guide rollers for adjusting the tension, and a limiting component arranged on one side of the first guide rollers for adjusting the deviation of the diaphragm;

[0009] The rolling device comprises a driving component arranged on the limiting component away from the first guide wheel, and an engaging component arranged at the bottom of the driving component for engaging the driving component,

[0010] The discharging device comprises a material replacing component arranged on the rolling device away from the buffering device, and a reel component carried by the material replacing component.

[0011] Preferably, the tension control component comprises a first sliding block arranged on the support plate, a first sliding groove arranged on the support plate for sliding of the first sliding block, a second guide wheel arranged on the first sliding block close to the other support plate, a pressure sensor arranged in the second guide wheel, a support rod arranged on the other side of the first sliding block, a plurality of first telescopic rods arranged at the bottom of the support rod, and a sliding rheostat sleeved on the support rod. In the preferred embodiment, the sliding rheostat is connected through the tension control component, the driving speed of the first motor can be adjusted, and the tension adjustment range is greatly improved to cope with the condition of large tension change.

[0012] Preferably, the limiting component comprises a third guide wheel arranged on the side of the first guide wheel, and a limiting plate mounted on both ends of the third guide wheel. In the preferred embodiment, the position of the diaphragm during winding is adjusted through the limiting plate to prevent uneven rolling.

[0013] Preferably, the driving component comprises a first motor arranged on one side of the support plate, and a first gear arranged on the other side of the support plate and driven by the execution end of the first motor. In the preferred embodiment, the reel is driven to rotate through the combination of the motor and the gear set, which facilitates the movement of the reel.

[0014] Preferably, the engaging component comprises a second sliding block arranged at the bottom of the first motor, a sliding rail arranged at the bottom of the second sliding block, a second sliding groove arranged on the support plate for movement of the driving component, a partition plate arranged at one end of the sliding rail, and a plurality of second telescopic rods connected with the partition plate and the second sliding block. In the preferred embodiment, the driving component is driven by the second sliding block to engage the reel to make it rotate or fall off the reel to prevent affecting the discharging.

[0015] Preferably, the material replacing component comprises a rotating disc assembly arranged between the two support plates, a second driving assembly arranged on one side of one of the support plates for driving the rotating disc assembly to rotate, and a shaft replacing assembly arranged on one side of the other support plate for replacing the reel component. In the preferred embodiment, the reel component is realized to fall off and discharge through the rotating disc assembly, the second driving assembly and the shaft replacing assembly.

[0016] Preferably, the rotating disc assembly comprises rotating discs respectively arranged on the opposite sides of the two support plates, a synchronous shaft synchronously connecting the two rotating discs, two first ball bearings arranged through each of the rotating discs, and second ball bearings for mounting each of the rotating discs on the support plates, in the preferred embodiment, the first ball bearings enable the reel assembly to rotate with the two ends of the reel component being held by the rotating discs.

[0017] Preferably, the second driving assembly comprises an internal gear arranged on one rotating disc away from the rotating disc assembly, a first support post arranged on one of the support plates away from the rotating disc assembly, a second motor arranged on the top of the first support post, and a second gear arranged on the execution end of the second motor and engaged with the internal gear, in the preferred embodiment, the internal gear driven by the motor provides a large torque to facilitate the rotation of the rotating disc assembly around the shaft.

[0018] Preferably, the shaft changing assembly comprises an inclined chute arranged on one of the support plates away from the rotating disc assembly, a third telescopic rod arranged on one side of the bottom of the inclined chute, a second support post arranged on the bottom of the third telescopic rod for support, a fourth telescopic rod arranged on the other of the support plates close to the second driving assembly, a third support post arranged on the fourth telescopic rod for support, and a limiting rod arranged obliquely above the rotating disc assembly, in the preferred embodiment, the inclined chute adjusts the position of the reel component, the third telescopic rod re-enters the reel component into the membrane winding device, and the fourth telescopic rod pushes the reel component out of the membrane roll.

[0019] Preferably, the reel component comprises a shaft body with an opening in the center, a third gear arranged on one side of the shaft body, two long telescopic cylinders arranged in the shaft body, an oblique blade arranged on one end of one of the long telescopic cylinders, a blade groove arranged on the same end of the other long telescopic cylinder, an arc-shaped groove arranged on the side of the shaft body without the opening, and an arc-shaped rod arranged on the execution end of the third telescopic rod, in the preferred embodiment, the telescopic cylinders and the blade installed in the reel enable the separation of the previous roll of membrane while pressing the membrane during the shaft changing process, and enable the sudden change of the membrane stretching tension during the roll changing process.

[0020] In summary, the present application mainly has the following beneficial effects:

[0021] The independent reel component, the telescopic cylinders and the blade installed in the reel enable the separation of the previous roll of membrane while pressing the membrane during the shaft changing process, in this process, the membrane does not relax, maintaining the tension of the front part of the membrane during the re-winding process, and improving the overall quality of the membrane roll.

[0022] The running speed of the driving part is adjusted by changing the running power of the first motor through the continuously adjusted resistance value of the slide rheostat when the tension adjusting part is running, so that the diaphragm tension is dynamically and accurately adjusted, and the tension adjusting range is greatly improved.

[0023] The continuous winding is completed through the circulation of the two reel parts, and the processes of putting the shaft and removing the shaft are considered, so that the automation degree is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the overall axonometric view of the present application;

[0025] Figure 2 It is the left side axonometric view of the present application;

[0026] Figure 3 It is the overall expanded axonometric view of the present application;

[0027] Figure 4 It is the axonometric view of the rolling device of the present application;

[0028] Figure 5 It is the enlarged view of part area of the present application;

[0029] Figure 6 It is the sectional view of the rotating shaft part of the present application.

[0030] BRIEF DESCRIPTION OF DRAWINGS: 10, base; 11, support plate; 20, buffer device; 30, rolling device; 40, discharging device; 21, first guide wheel; 22, tension control part; 23, limiting part; 31, driving part; 32, connecting part; 41, shaft replacing part; 42, reel part; 221, first sliding block; 222, first sliding groove; 223, second guide wheel; 224, support rod; 225, first telescopic rod; 226, slide rheostat; 227, pressure sensor; 231, third guide wheel; 232, limiting plate; 311, first motor; 312, first gear; 321, second sliding block; 322, sliding rail; 323, second sliding groove; 324, partition plate; 325, second telescopic rod; 411, rotating disc assembly; 412, second driving assembly; 413, shaft replacing assembly; 4111, rotating disc; 4112, synchronous shaft; 4113, first ball bearing; 4114, second ball bearing; 4121, built-in gear; 4122, first support post; 4123, second motor; 4124, second gear; 4131, inclined groove; 4132, third telescopic rod; 4133, second support post; 4134, fourth telescopic rod; 4135, third support post; 4136, limiting rod; 421, shaft body; 422, third gear; 423, long telescopic cylinder; 424, inclined blade; 425, blade groove; 426, arc-shaped groove; 427, arc-shaped rod. EMBODIMENT

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The embodiments of the present invention will now be described. Example

[0033] Please refer to the appendix carefully. Figure 1 , 4 As shown in Figures 5 and 6, a winding device for producing coated diaphragms includes a base 10, two support plates 11 arranged parallel to each other on the top of the base 10, a buffer device 20, a winding device 30, and a discharge device 40 arranged sequentially inside the two support plates 11. The buffer device 20 includes several first guide rollers 21 distributed on the support plates 11, a tension control component 22 above the first guide rollers 21 for adjusting tension, and a limiting component 23 on one side of the first guide rollers 21 for adjusting diaphragm offset. The winding device 30 includes a driving component 31 located away from the first guide rollers 21 from the limiting component 23, and a connecting component 32 located at the bottom of the driving component 31 for disconnecting the driving component 31. The discharge device 40 includes a material changing component 41 located on the side of the winding device 30 away from the buffer device 20, and a winding component 42 carried by the material changing component 41. The winding component 42 includes a shaft 421 with a central opening, and a sleeve on the shaft. The components include a third gear 422 on one side of the shaft 421, two long telescopic cylinders 423 inside the shaft 421, a slanted blade 424 at one end of one long telescopic cylinder 423, a cutter groove 425 at the same end of the other long telescopic cylinder 423, an arc-shaped groove 426 on the closed side of the shaft 421, an arc-shaped rod 427 at the actuating end of the third telescopic rod 4132, a first motor 311 on one side of a support plate 11, a first gear 312 on the other side of the support plate 11 and driven by the actuating end of the first motor 311, a connecting component 32 including a second slider 321 at the bottom of the first motor 311, a slide rail 322 at the bottom of the second slider 321, a second slide groove 323 on the support plate 11 for the movement of the driving component 31, a partition 324 at one end of the slide rail 322, and several second telescopic rods 325 connected to the partition 324 and the second slider 321.

[0034] It should be noted that the diameter of the third gear 422 is smaller than the diameter of the shaft 421. That is, the two sides of the third gear 422 are blocked by the shaft 421. When the first gear 312 meshes with the third gear 422, the first gear 312 blocks the shaft 421, which can prevent the winding component 42 from wobbling left and right.

[0035] Further, when the device first winds the diaphragm, the diaphragm needs to be manually wound along the buffer device 20, and then the first end of the diaphragm is automatically clamped by the long telescopic cylinder 423 in the shaft body 421.

[0036] Further, the second telescopic rod 325 on one side of the partition plate 324 is extended, driving the second sliding block 321 to slide forward on the slide rail 322, driving the first motor 311 and the first gear 312 to move forward along the second sliding block 321, so that the first gear 312 is engaged with the third gear 422.

[0037] Further, the first motor 311 is started, driving the reel component 42 to rotate and start winding the diaphragm.

[0038] Please refer to FIGS. 1-5 Figure 1 、 3 , the tension control component 22 includes a first sliding block 221 passing through the first sliding groove 222 on the support plate 11, a second guide wheel 223 on the first sliding block 221 close to the other support plate 11, a pressure sensor 227 inside the second guide wheel 223, a support rod 224 on the other side of the first sliding block 221, a plurality of first telescopic rods 225 at the bottom of the support rod 224, a sliding resistor 226 sleeved on the support rod 224, and a limiting component 23 including a third guide wheel 231 on one side of the first guide wheel 21 and a limiting plate 232 installed on both ends of the third guide wheel 231.

[0039] It should be noted that the sliding resistor 226 is connected in series with the first motor 311, and the support rod 224 acts as a sliding block in this system. The sliding resistor 226 adopts a partition design, and only when the support rod 224 slides too far can the resistance value be changed. The working range of the pressure sensor 227 is set according to the required tension, and different signals are generated when the pressure sensor 227 bears too high or too low pressure.

[0040] Further, when the diaphragm tension is too large, the pressure on the pressure sensor 227 increases, the first telescopic rod 225 contracts, driving the support rod 224 and the first sliding block 221 to descend along the first sliding groove 222, the distance between the second guide wheel 223 and the first guide wheel 21 decreases, and the tension decreases.

[0041] Further, when the first telescopic rod 225 contracts too far, the support rod 224 slides down too far, increasing the resistance value of the sliding resistor 226, resulting in a decrease in the current and power of the first motor 311, and a decrease in the rotation speed, which slows down the winding speed and significantly reduces the diaphragm tension. At this time, the first telescopic rod 225 is likely to extend, and the winding speed is balanced.

[0042] Furthermore, when the diaphragm tension is too low, the pressure on the pressure sensor 227 decreases, the first telescopic rod 225 extends, driving the support rod 224 and the first slider 221 to rise along the first slide groove 222, the distance between the second guide wheel 223 and the first guide wheel 21 increases, and the tension increases accordingly.

[0043] Furthermore, when the first telescopic rod 225 extends too far, the support rod 224 rises too far, causing the resistance of the sliding rheostat 226 to decrease. This leads to an increase in the current and power of the first motor 311, resulting in a faster rotation speed and a faster winding speed. Consequently, the diaphragm tension will increase significantly. At this point, the first telescopic rod 225 will likely retract, reaching a balance with the winding speed.

[0044] Furthermore, when the diaphragm passes the third guide roller 231, the limiting plate 232 adjusts the position of the diaphragm to stabilize its position during winding.

[0045] Please refer to the appendix carefully. Figure 1 , 2 As shown in Figures 3, 5, and 6, the material changing component 41 includes a turntable assembly 411 located between two support plates 11, a second drive assembly 412 located on one side of one support plate 11 for driving the turntable assembly 411 to rotate, and a shaft changing assembly 413 located on the other side of the support plate 11 for changing the reel assembly 42. The turntable assembly 411 includes rotating disks 4111 respectively located on opposite sides of the two support plates 11, a synchronous shaft 4112 synchronously connecting the two rotating disks 4111, two first ball bearings 4113 penetrating each rotating disk 4111, and a second ball bearing 4114 for mounting each rotating disk 4111 on the support plate 11. The second drive assembly 412 includes an internal gear 4121 located on the side of one rotating disk 4111 away from the turntable assembly 411, and a shaft changing assembly 413 located on the other side of the support plate 11. The support plate 11 has a first support post 4122 on the side away from the turntable assembly 411, a second motor 4123 on the top of the first support post 4122, a second gear 4124 on the execution end of the second motor 4123, the second gear 4124 meshing with the built-in gear 4121, and a shaft changing assembly 413 including a sloping groove 4131 on the side of a support plate 11 away from the turntable assembly 411, a third telescopic rod 4132 on the bottom side of the sloping groove 4131, a second support post 4133 on the bottom of the third telescopic rod 4132 for support, a fourth telescopic rod 4134 on the side of another support plate 11 near the second drive assembly 412, a third support post 4135 on the fourth telescopic rod 4134 for support, and a limiting rod 4136 on the upper side of the turntable assembly 411.

[0046] It needs to be explained that the support plate 11 close to the chute 4131 has a circular groove for installing the rotating disc 4111, and the circular groove has two round holes for the reel part 42 to enter and exit, and the chute 4131 is installed on one side of the support plate 11 based on the two round holes;

[0047] Further, during the winding process, the reel part 42 is connected to the rotation through the first ball bearing 4113, when the winding is completed once, the second motor 4123 is started, the built-in gear 4121 is rotated through the second gear 4124, and the two rotating discs 4111 are synchronously rotated on the second ball bearing 4114 through the synchronous shaft 4112, when the reel part 42 is supported on the other round hole on the support plate 11, the rotation is stopped;

[0048] Further, the third telescopic rod 4132 on the second support pile 4133 is extended, and the other reel part 42 located at the bottom of the chute 4131 is pushed to the first ball bearing 4113 on the same horizontal position of the two rotating discs 4111 through the round hole, during the pushing process, the position of the shaft body 421 is adjusted by the arc-shaped rod 427 and the arc-shaped groove 426, and the diaphragm is slid into the opening;

[0049] Further, the long telescopic cylinder 423 is extended to clamp the diaphragm, during the process, the oblique blade 424 and the knife groove 425 cut the diaphragm, and the winding is completed;

[0050] Further, the limiting rod 4136 blocks the last diaphragm roll to prevent it from being scattered, the last diaphragm roll can be sealed by manual operation, the reel part 42 in the last diaphragm roll is adjusted, the long telescopic cylinder 423 is retracted, then the fourth telescopic rod 4134 on the third support pile 4135 is started to push the last reel part 42 into the chute 4131, and the discharging is completed.

[0051] The working principle of the application is as follows:

[0052] The electric elements in the application are triggered to work by the PLC controller, and the model of the PLC controller is FX3U-16MR.

[0053] When the device first winds the diaphragm, the diaphragm needs to be manually wound along the buffer device 20, and then the first end of the diaphragm is automatically clamped by the long telescopic cylinder 423 in the shaft body 421. The second telescopic rod 325 on one side of the partition plate 324 is extended, driving the second sliding block 321 to slide forward on the sliding rail 322, driving the first motor 311 and the first gear 312 to move forward along the second sliding block 321, so that the first gear 312 is engaged with the third gear 422. The first motor 311 is started, driving the winding shaft component 42 to rotate and start winding the diaphragm. When the tension of the diaphragm is too large, the pressure on the pressure sensor 227 increases, the first telescopic rod 225 retracts, driving the support rod 224 and the first sliding block 221 to descend along the first sliding groove 222, the distance between the second guide wheel 223 and the first guide wheel 21 decreases, and the tension decreases accordingly. When the first telescopic rod 225 retracts too far, the support rod 224 slides too far, causing the resistance value 226 of the sliding rheostat to increase, resulting in a decrease in the current and power of the first motor 311, and a decrease in the rotating speed, which slows down the winding speed and greatly reduces the tension of the diaphragm. At this time, the first telescopic rod 225 is likely to extend, and the winding speed reaches a balance. When the tension of the diaphragm is too small, the pressure on the pressure sensor 227 decreases, the first telescopic rod 225 extends, driving the support rod 224 and the first sliding block 221 to ascend along the first sliding groove 222, the distance between the second guide wheel 223 and the first guide wheel 21 increases, and the tension increases accordingly. When the first telescopic rod 225 extends too far, the support rod 224 rises too far, causing the resistance value 226 of the sliding rheostat to decrease, resulting in an increase in the current and power of the first motor 311, and an increase in the rotating speed, which speeds up the winding speed and greatly increases the tension of the diaphragm. At this time, the first telescopic rod 225 is likely to retract, and the winding speed reaches a balance. When the diaphragm passes through the third guide wheel 231, the limiting plate 232 adjusts the position of the diaphragm to stabilize its position during winding. During the winding process, the winding shaft component 42 is connected to the rotating shaft 4113 through the first ball bearing 4113. When the winding is completed, the second motor 4123 is started, driving the built-in gear 4121 to rotate through the second gear 4124, driving the two rotating discs 4111 to rotate synchronously on the second ball bearing 4114 through the synchronous shaft 4112. When the winding shaft component 42 supports the other circular hole on the support plate 11, it stops rotating. The third telescopic rod 4132 on the second support post 4133 extends, pushing the other winding shaft component 42 located at the bottom of the inclined groove 4131 through the circular hole to the first ball bearing 4113 at the same horizontal position of the two rotating discs 4111. During the pushing process, the arc-shaped rod 427 and the arc-shaped groove 426 adjust the position of the shaft body 421, slide the diaphragm into the opening, and extend the long telescopic cylinder 423 to clamp the diaphragm. During this process, the oblique blade 424 and the blade groove 425 cut the diaphragm, complete the winding change, and the limiting rod 4136 blocks the previous diaphragm winding to prevent it from spreading. The previous diaphragm winding can be sealed by manual operation, adjusting the winding shaft component 42 in the previous diaphragm winding to make the long telescopic cylinder 423 retract,After that, the fourth telescopic rod 4134 on the third supporting pile 4135 is started to push the upper roll shaft part 42 into the chute 4131, and the discharging is completed.

[0054] Although the embodiments of the present application have been shown and described, the specific embodiments are merely illustrative of the present application, and are not intended to limit the present application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, as long as they are within the scope of the claims of the present application.

Claims

1. A winding device for producing a coated separator, comprising a base (10), two support plates (11) arranged in parallel on the top of the base (10), characterized in that The buffering device (20), the rolling device (30) and the discharging device (40) are sequentially arranged inside the two support plates (11); The buffering device (20) comprises a plurality of first guide wheels (21) distributed on the support plate (11), a tension control component (22) arranged above the first guide wheels (21) for adjusting tension, and a limiting component (23) arranged on one side of the first guide wheels (21) for adjusting the offset of the diaphragm; The rolling device (30) comprises a driving component (31) arranged away from the first guide wheels (21) of the limiting component (23), a connecting component (32) arranged at the bottom of the driving component (31) for connecting the driving component (31), The discharging device (40) comprises a material replacing component (41) arranged away from the buffering device (20) on one side of the rolling device (30), and a reel component (42) carried by the material replacing component (41); The material replacing component (41) comprises a rotating disc assembly (411) arranged between the two support plates (11), a second driving assembly (412) arranged on one side of one of the support plates (11) for driving the rotating disc assembly (411) to rotate, and a shaft replacing assembly (413) arranged on one side of the other support plate (11) for replacing the reel component (42); The rotating disc assembly (411) comprises rotating discs (4111) arranged on opposite sides of the two support plates (11) respectively, a synchronous shaft (4112) synchronously connecting the two rotating discs (4111), two first ball bearings (4113) arranged on each of the rotating discs (4111), and second ball bearings (4114) for mounting each of the rotating discs (4111) on the support plate (11); The shaft replacing assembly (413) comprises an inclined chute (4131) arranged away from the rotating disc assembly (411) on one side of one of the support plates (11), a third telescopic rod (4132) arranged on one side of the bottom position of the inclined chute (4131), a second support stake (4133) arranged at the bottom of the third telescopic rod (4132) for support, a fourth telescopic rod (4134) arranged on one side of the other support plate (11) close to the second driving assembly (412), a third support stake (4135) arranged on the fourth telescopic rod (4134) for support, and a limiting rod (4136) arranged obliquely above the rotating disc assembly (411).

2. The winding device for producing a coated separator according to claim 1, characterized by The tension control component (22) comprises a first sliding block (221) penetrating the support plate (11), a first sliding groove (222) provided on the support plate (11) for sliding of the first sliding block (221), a second guide wheel (223) provided on the first sliding block (221) near the other support plate (11), a pressure sensor (227) provided in the second guide wheel (223), a support rod (224) provided on the other side of the first sliding block (221), a plurality of first telescopic rods (225) provided at the bottom of the support rod (224), and a sliding rheostat (226) sleeved on the support rod (224).

3. The winding device for producing a coated separator according to claim 1, characterized by The limiting component (23) comprises a third guide wheel (231) provided on one side of the first guide wheel (21), and a limiting plate (232) mounted on both ends of the third guide wheel (231).

4. The winding device for producing a coated separator according to claim 1, characterized by The driving component (31) comprises a first motor (311) provided on one side of the support plate (11), and a first gear (312) provided on the other side of the support plate (11) and driven by the driving end of the first motor (311).

5. The winding device for producing a coated separator according to claim 4, characterized by The connecting component (32) comprises a second sliding block (321) provided at the bottom of the first motor (311), a sliding rail (322) provided at the bottom of the second sliding block (321), a second sliding groove (323) provided on the support plate (11) for movement of the driving component (31), a partition plate (324) provided at one end of the sliding rail (322), and a plurality of second telescopic rods (325) connected with the partition plate (324) and the second sliding block (321).

6. The winding device for producing a coated separator according to claim 1, wherein The second driving assembly (412) comprises an internal gear (4121) provided on one side of a rotating disc (4111) away from the rotating disc assembly (411), a first support post (4122) provided on one side of the support plate (11) away from the rotating disc assembly (411), a second motor (4123) provided at the top of the first support post (4122), a second gear (4124) provided at the driving end of the second motor (4123), and the second gear (4124) and the internal gear (4121) are engaged with each other.

7. The winding device for producing a coated separator according to claim 1, wherein The reel component (42) comprises a shaft body (421) with an opening in the center, a third gear (422) sleeved on one side of the shaft body (421), two long telescopic cylinders (423) provided in the shaft body (421), an inclined blade (424) provided at one end of one long telescopic cylinder (423), a knife groove (425) provided at the same end of the other long telescopic cylinder (423), an arc-shaped groove (426) provided on the side of the shaft body (421) without the opening, and an arc-shaped rod (427) provided at the driving end of the third telescopic rod (4132).

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