Winding device for thin film capacitor processing

Abstract

The utility model relates to the technical field of capacitor production equipment, in particular to a winding device for processing a film capacitor, which comprises a working box, a heat sealing assembly and a winding assembly, and a first feeding roller, a second feeding roller and a heat sealing chamber are arranged in the working box; the first feeding roller and the second feeding roller are rotationally connected with the working box; the heat sealing chamber is arranged in the working box, the heat sealing assembly is arranged in the heat sealing chamber, the heat sealing chamber comprises a side plate and a bottom plate, and the side plate and the bottom plate are fixedly connected with the working box; the heat sealing assembly comprises a heating assembly, a first supporting assembly and a second supporting assembly. The first supporting assembly and the second supporting assembly are used for supporting the metal coating and the plastic film on the two sides of the heat sealing cavity correspondingly. The winding assembly is arranged in the work box. According to the utility model, the problem of insufficient attachment caused by insufficient heating of the metal coating and the plastic film during heat sealing processing is solved through the heat sealing assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitor production equipment, in particular to a winding device used for processing film capacitors. Background Art

[0002] Film capacitors are also called plastic film capacitors, which use plastic film as dielectric. Film capacitors have many excellent properties, such as non-polarity, high insulation impedance, excellent frequency characteristics, and low dielectric loss. Based on the above advantages, film capacitors are widely used in analog circuits.

[0003] The existing film capacitor is made by overlapping aluminum or other metal foil as electrodes with plastic film and then winding them together. The films used in metallized film capacitors include polyethylene, polypropylene, polycarbonate, etc. In addition to the winding type, there are also laminated types.

[0004] The existing metallized film capacitors cannot ensure the winding strength and the full fit between the plastic film and the metal coating during winding, resulting in loose winding and a decrease in the yield rate of the film capacitors.

[0005] Chinese patent CN209071144U discloses a winding device for processing film capacitors, including a device housing, four supporting feet fixedly connected to the lower end of the device housing, two supporting rods symmetrically and vertically connected on the side wall of the device housing, and a coating reel and a film reel rotatably connected to the other ends of the two supporting rods, the coating reel is wound with a metal coating, the film reel is wound with a plastic film, and two symmetrically arranged first changing wheels and two symmetrically arranged second changing wheels are rotatably connected to the inner side wall of the device housing.

[0006] However, when winding the metallized film capacitor, the thickness of the metal coating and the plastic film may be different. During the heat sealing process, the metal coating and the plastic film are easily not fully heated, resulting in insufficient adhesion between the metal coating and the plastic film, which affects the production yield of the film capacitor. Utility Model Content

[0007] In view of the above problems, a winding device for film capacitor processing is provided, which solves the problem of insufficient bonding between the metal coating and the plastic film due to insufficient heating during the heat sealing process through a heat sealing component.

[0008] In order to solve the problems of the prior art, the utility model provides a winding device for film capacitor processing, comprising a working box, a heat sealing assembly and a winding assembly, wherein a first feeding roller, a second feeding roller and a heat sealing chamber are arranged in the working box; the first feeding roller and the second feeding roller are rotatably connected to the working box; the heat sealing chamber is arranged in the working box, and the heat sealing assembly is arranged in the heat sealing chamber, the heat sealing chamber comprises a side plate and a bottom plate, and the side plate and the bottom plate are fixedly connected to the working box; the heat sealing assembly comprises a heating assembly, a first supporting assembly and a second supporting assembly, and the first supporting assembly and the second supporting assembly are used to support the metal coating and the plastic film on both sides of the heat sealing chamber respectively; the winding assembly is arranged in the working box, and the winding assembly is used to wind the film capacitor formed by the heat sealing process of the metal coating and the plastic film.

[0009] Preferably, the heating assembly includes a heating seat, an electric heating tube and an electric push rod; the electric heating tube is arranged in the heating seat, the heating seat is arranged on the top of the heat sealing chamber, the electric push rod is arranged on the top of the working box, and the output end of the electric push rod is fixedly connected to the heating seat.

[0010] Preferably, a limiting rod is also provided on the heating seat; the limiting rod is provided on the top of the heating seat, the limiting rod passes through the top of the working box and slides with the top of the working box; a limiting block is provided on the top of the limiting rod.

[0011] Preferably, the first supporting assembly includes a first rotating frame, a second rotating frame and a supporting seat, and the structure of the second supporting assembly is the same as that of the first supporting assembly; a first rotating roller is provided on the first rotating frame, the first rotating roller is rotatably connected to the first rotating frame, and the first rotating frame is arranged above the second rotating frame; a second rotating roller is provided on the second rotating frame, the second rotating roller is rotatably connected to the second rotating frame, and the second rotating frame is arranged on the supporting seat; the supporting seat is arranged on the bottom plate.

[0012] Preferably, an adjustment rod is provided on the first rotating frame; an adjustment column and an adjustment slot are provided on the second rotating frame, the adjustment slot is provided in the adjustment column, and the adjustment slot is slidably matched with the adjustment rod; the distance between the first rotating roller and the second rotating roller in the second supporting assembly is smaller than that of the first supporting assembly.

[0013] Preferably, a spring and an adjusting bolt are provided on the second rotating frame; the spring is arranged in the adjusting groove, and the two sides of the spring are respectively fixedly connected to the adjusting rod and the bottom of the adjusting groove; the adjusting bolt passes through the bottom of the adjusting column and is threadedly connected to the adjusting column.

[0014] Preferably, the winding assembly includes a winding roller, a servo motor and a synchronization assembly; the winding roller is arranged in a working box, and the winding roller is rotationally connected to the working box; the servo motor is arranged on the side wall of the working box, and the servo motor is used to drive the winding roller; the synchronization assembly is used to synchronously drive the first feeding roller and the second feeding roller while the winding roller rotates.

[0015] Preferably, the synchronization component includes a first synchronization wheel, a second synchronization wheel, a synchronization belt, a first gear and a second gear; the first synchronization wheel is arranged on the winding roller, the second synchronization wheel is arranged on the first feeding roller, and the synchronization belt is sleeved on the first synchronization wheel and the second synchronization wheel; the first gear is arranged on the first feeding roller, the second gear is arranged on the second feeding roller, and the first gear is meshed with the second gear.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model is provided with a first supporting assembly and a second supporting assembly, which are respectively arranged on both sides of the heat-sealing chamber, and the first supporting assembly and the second supporting assembly are used to support the metal coating and the plastic film, thereby increasing the heating area of ​​the metal coating and the plastic film, facilitating the heat-sealing of the metal coating and the plastic film to form a metallized film, and improving the production yield of the film capacitor.

[0018] 2. The utility model is provided with an electric push rod and a limit rod. The output end of the electric push rod is fixedly connected to the heating seat. The distance between the heating seat and the metal coating and the plastic film is adjusted by the electric push rod. Therefore, when heat-sealing metal coatings and plastic films of different thicknesses, the distance between the electric heating tube and the metal coating and the plastic film is adjusted, thereby improving the heating effect of the metal coating and the plastic film and improving the production yield of the film capacitor.

[0019] 3. The utility model is provided with a first rotating roller and a second rotating roller. The distance between the first rotating frame and the second rotating frame is adjusted by a spring and an adjusting bolt, thereby adjusting the distance between the first rotating roller and the second rotating roller. The metal coating and the plastic film pass through between the first rotating roller and the second rotating roller. The distance between the first rotating roller and the second rotating roller in the second supporting assembly is smaller than that of the first supporting assembly, so that the metal coating and the plastic film passing through the second supporting assembly are more closely fitted, thereby improving the heat sealing effect between the metal coating and the plastic film and improving the production yield of the film capacitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional schematic diagram of a winding device used in film capacitor processing Figure 1 .

[0021] Figure 2 A three-dimensional schematic diagram of a winding device used in film capacitor processing Figure 2 .

[0022] Figure 3 A cross-sectional view of a winding device used in film capacitor processing.

[0023] Figure 4The figure is a partial schematic diagram of the A portion of a winding device used for processing film capacitors.

[0024] Figure 5 The present invention is a three-dimensional structural schematic diagram of a first supporting assembly of a winding device used for processing film capacitors.

[0025] Figure 6 The present invention is a cross-sectional view of a first support assembly of a winding device for processing thin film capacitors.

[0026] Figure 7 The present invention is a three-dimensional structural schematic diagram of a first feeding roller, a second feeding roller and a winding assembly of a winding device used for processing film capacitors.

[0027] The numbers in the figure are: 1, working box; 11, first feeding roller; 12, second feeding roller; 13, heat sealing chamber; 131, side plate; 132, bottom plate; 2, heat sealing assembly; 21, heating assembly; 211, heating seat; 2111, limit rod; 21111, limit block; 212, electric heating pipe; 213, electric push rod; 22, first supporting assembly; 221, first rotating frame; 2211, first rotating roller; 2212, adjusting rod; 222, second rotating frame; 2221, second rotating roller; 2222, adjusting column; 2223, adjusting slot; 2224, spring; 2225, adjusting bolt; 223, supporting seat; 23, second supporting assembly; 3, winding assembly; 31, winding roller; 32, servo motor; 33, synchronous assembly; 331, first synchronous wheel; 332, second synchronous wheel; 333, synchronous belt; 334, first gear; 335, second gear. DETAILED DESCRIPTION

[0028] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Reference Figure 1-Figure 4: A winding device for film capacitor processing, comprising a working box 1, a heat sealing component 2 and a winding component 3, wherein the working box 1 is provided with a first feeding roller 11, a second feeding roller 12 and a heat sealing chamber 13; the first feeding roller 11 and the second feeding roller 12 are rotatably connected to the working box 1; the heat sealing chamber 13 is arranged in the working box 1, and the heat sealing component 2 is arranged in the heat sealing chamber 13, the heat sealing chamber 13 comprises a side plate 131 and a bottom plate 132, and the side plate 131 and the bottom plate 132 are fixedly connected to the working box 1; the heat sealing component 2 comprises a heating component 21, a first supporting component 22 and a second supporting component 23, the first supporting component 22 and the second supporting component 23 are used to support the metal coating and the plastic film on both sides of the heat sealing chamber 13 respectively; the winding component 3 is arranged in the working box 1, and the winding component 3 is used to wind the film capacitor formed by the heat sealing process of the metal coating and the plastic film.

[0030] The working box 1 is set on the ground, and a supporting leg is set at the bottom of the working box 1, and the supporting leg is used to support the working box 1 on the bottom surface. The first feeding roller 11 and the second feeding roller 12 extend along the width direction of the working box 1, and the first feeding roller 11 and the second feeding roller 12 are used to wind the metal coating and the plastic film. A plurality of direction-changing rollers are set near the first feeding roller 11 and the second feeding roller 12 in the working box 1, and the direction-changing rollers are used to change the direction of the metal coating and the plastic film. At the same time, the direction-changing rollers are used to make the metal coating and the plastic film fit tightly before entering the heat-sealing chamber 13. The direction-changing rollers are prior art and will not be described in detail here. The heat-sealing chamber 13 is set in the working box 1, and the side plates 131 have two and are located on both sides of the heat-sealing chamber 13. The bottom plate 132 is located at the bottom of the heat-sealing chamber 13. Component 21 is arranged on the top of the heat sealing chamber 13, and a feed port and a discharge port are arranged on both sides of the heat sealing chamber 13. The first support component 22 and the second support component 23 are arranged on the bottom plate 132 near the feed port and the discharge port. The first support component 22 and the second support component 23 are higher than the changing roller and the winding component 3. The first support component 22 and the second support component 23 are used to support the metal coating and the plastic film, thereby increasing the heating area of ​​the metal coating and the plastic film, facilitating the heat sealing of the metal coating and the plastic film to form a metallized film, and improving the production yield of the film capacitor. The winding component 3 is located obliquely below the discharge port of the heat sealing chamber 13 in the working box 1. The winding component 3 is used to wind the metallized film formed by heat sealing the metal coating and the plastic film, i.e., the film capacitor.

[0031] Reference Figure 3 and Figure 4 : The heating assembly 21 includes a heating seat 211, an electric heating tube 212 and an electric push rod 213; the electric heating tube 212 is arranged in the heating seat 211, the heating seat 211 is arranged on the top of the heat sealing chamber 13, the electric push rod 213 is arranged on the top of the working box 1, and the output end of the electric push rod 213 is fixedly connected to the heating seat 211.

[0032] The electric heating tube 212 is arranged at the bottom of the heating seat 211. The electric heating tube 212 is used to heat-seal the metal coating and the plastic film to form a metallized film. The electric push rod 213 is arranged on the top of the working box 1. The output end of the electric push rod 213 is fixedly connected to the top of the heating seat 211. The electric push rod 213 is used to adjust the height of the heating seat 211, so that when heat-sealing metal coatings and plastic films of different thicknesses, the distance between the electric heating tube 212 and the metal coating and the plastic film is adjusted, thereby improving the heating effect of the metal coating and the plastic film and improving the production yield of the film capacitor.

[0033] Reference Figure 4 : A limiting rod 2111 is also provided on the heating seat 211; the limiting rod 2111 is provided at the top of the heating seat 211, the limiting rod 2111 passes through the top of the working box 1 and slides with the top of the working box 1; a limiting block 21111 is provided on the top of the limiting rod 2111.

[0034] A limit rod 2111 is arranged on the top of the heating seat 211. The limit rod 2111 extends in the vertical direction. The limit rod 2111 passes through the top of the working box 1 and slides with it. The limit rod 2111 is used to improve the stability of the electric push rod 213 when adjusting the height of the heating seat 211. A limit block 21111 is arranged on the top of the limit rod 2111 for limiting the minimum height of the heating seat 211. By limiting the minimum height of the heating seat 211, the distance between the electric heating tube 212 and the metal coating and the plastic film is prevented from being too close, resulting in overheating of the metal coating and the plastic film.

[0035] Reference Figure 4-Figure 6 : The first supporting assembly 22 includes a first rotating frame 221, a second rotating frame 222 and a supporting seat 223, and the structure of the second supporting assembly 23 is the same as that of the first supporting assembly 22; a first rotating roller 2211 is provided on the first rotating frame 221, and the first rotating roller 2211 is rotatably connected to the first rotating frame 221, and the first rotating frame 221 is arranged above the second rotating frame 222; a second rotating roller 2221 is provided on the second rotating frame 222, and the second rotating frame 222 is arranged on the supporting seat 223; the supporting seat 223 is arranged on the bottom plate 132.

[0036] The first rotating frame 221 and the second rotating frame 222 are arranged opposite to each other, the second rotating frame 222 is fixedly connected to the support seat 223, the support seat 223 is fixedly connected to the bottom plate 132 of the heat sealing chamber 13, the first rotating roller 2211 is rotatably connected to the first rotating frame 221, the second rotating roller 2221 is rotatably connected to the second rotating frame 222, the first rotating roller 2211 and the second rotating roller 2221 are arranged opposite to each other, the metal coating and the plastic film pass through between the first rotating roller 2211 and the second rotating roller 2221, and the metal coating and the plastic film are kept in close contact with each other during the heat sealing process by the first rotating roller 2211 and the second rotating roller 2221, thereby improving the production yield rate of the film capacitor.

[0037] Reference Figure 5 and Figure 6 : An adjusting rod 2212 is provided on the first rotating frame 221; an adjusting column 2222 and an adjusting slot 2223 are provided on the second rotating frame 222, the adjusting slot 2223 is provided in the adjusting column 2222, and the adjusting slot 2223 is slidably matched with the adjusting rod 2212; the distance between the first rotating roller 2211 and the second rotating roller 2221 in the second supporting assembly 23 is smaller than that of the first supporting assembly 22.

[0038] The adjusting rod 2212 extends downward in the vertical direction, and the adjusting column 2222 extends upward in the vertical direction. The adjusting rod 2212 and the adjusting column 2222 are coaxially arranged, and the adjusting slot 2223 is arranged in the adjusting column 2222. The adjusting rod 2212 and the adjusting slot 2223 are slidably matched. The distance between the first rotating frame 221 and the second rotating frame 222 can be adjusted by the adjusting rod 2212 and the adjusting slot 2223, thereby adjusting the distance between the first rotating roller 2211 and the second rotating roller 2221. The distance between the first rotating roller 2211 and the second rotating roller 2221 in the second supporting assembly 23 is smaller than that of the first supporting assembly 22, so that the metal coating passing through the second supporting assembly 23 and the plastic film are more closely attached, thereby improving the heat sealing effect between the metal coating and the plastic film, and improving the production yield of the film capacitor.

[0039] Reference Figure 6 : A spring 2224 and an adjusting bolt 2225 are provided on the second rotating frame 222; the spring 2224 is arranged in the adjusting slot 2223, and the two sides of the spring 2224 are respectively fixedly connected to the adjusting rod 2212 and the bottom of the adjusting slot 2223; the adjusting bolt 2225 passes through the bottom of the adjusting column 2222 and the adjusting bolt 2225 is threadedly connected to the adjusting column 2222.

[0040] The spring 2224 is arranged in the adjusting slot 2223, the top of the spring 2224 is fixedly connected to the bottom of the adjusting rod 2212, the bottom of the spring 2224 is fixedly connected to the bottom of the adjusting slot 2223, the spring 2224 is used to prevent the adjusting rod 2212 from being separated from the adjusting slot 2223, the adjusting bolt 2225 passes through the bottom of the adjusting column 2222 and the adjusting bolt 2225 is threadedly connected to the adjusting column 2222, the top of the adjusting bolt 2225 abuts against the adjusting rod 2212, the adjusting bolt 2225 is turned, the adjusting bolt 222 The protruding length in the adjusting slot 2223 increases, the spring 2224 stretches, thereby increasing the distance between the first rotating frame 221 and the second rotating frame 222. The adjusting bolt 2225 is rotated in the reverse direction, the protruding length of the adjusting bolt 2225 in the adjusting slot 2223 decreases, the spring 2224 contracts, thereby reducing the distance between the first rotating frame 221 and the second rotating frame 222. The distance between the first rotating frame 221 and the second rotating frame 222 is adjusted by the adjusting bolt 2225 and the spring 2224.

[0041] Reference Figure 1 and Figure 7 : The winding assembly 3 includes a winding roller 31, a servo motor 32 and a synchronization assembly 33; the winding roller 31 is arranged in the working box 1, and the winding roller 31 is rotationally connected to the working box 1; the servo motor 32 is arranged on the side wall of the working box 1, and the servo motor 32 is used to drive the winding roller 31; the synchronization assembly 33 is used to synchronously drive the first feeding roller 11 and the second feeding roller 12 while the winding roller 31 rotates.

[0042] The winding roller 31 extends along the width direction of the working box 1, and the winding roller 31 is rotatably connected to the working box 1. The winding roller 31 is arranged obliquely below the discharge port of the heat sealing chamber 13. The winding roller 31 is used to wind the metallized film formed by heat sealing. The servo motor 32 is used to drive the winding tube to rotate, and the synchronization component 33 is used to synchronously drive the first feeding roller 11 and the second feeding roller 12.

[0043] Reference Figure 1 and Figure 7 : The synchronization component 33 includes a first synchronization wheel 331, a second synchronization wheel 332, a synchronization belt 333, a first gear 334 and a second gear 335; the first synchronization wheel 331 is arranged on the winding roller 31, the second synchronization wheel 332 is arranged on the first feeding roller 11, and the synchronization belt 333 is sleeved on the first synchronization wheel 331 and the second synchronization wheel 332; the first gear 334 is arranged on the first feeding roller 11, the second gear 335 is arranged on the second feeding roller 12, and the first gear 334 is meshed with the second gear 335.

[0044] The first synchronous wheel 331 is coaxially arranged with the winding roller 31, the second synchronous wheel 332 is coaxially arranged with the first feeding shaft, the synchronous belt 333 is sleeved on the first synchronous wheel 331 and the second synchronous wheel 332, the synchronous belt 333 is used to drive the first synchronous wheel 331 and the second synchronous wheel 332 to rotate synchronously, the first gear 334 is coaxially arranged with the first feeding roller 11, the second gear 335 is coaxially arranged with the second feeding roller 12, the first gear 334 is meshed with the second gear 335, the winding roller 31 drives the first feeding roller 11 to rotate synchronously through the first synchronous wheel 331, the second synchronous wheel 332 and the synchronous belt 333, and the first feeding roller 11 drives the second feeding roller 12 to rotate synchronously through the first gear 334 and the second gear 335.

[0045] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A winding device for film capacitor processing, comprising a working box (1), a heat sealing component (2) and a winding component (3), characterized in that: A first feeding roller (11), a second feeding roller (12) and a heat sealing chamber (13) are arranged in the working box (1); The first feeding roller (11) and the second feeding roller (12) are rotatably connected to the working box (1); The heat sealing chamber (13) is arranged in the working box (1), the heat sealing assembly (2) is arranged in the heat sealing chamber (13), the heat sealing chamber (13) comprises a side plate (131) and a bottom plate (132), and the side plate (131) and the bottom plate (132) are fixedly connected to the working box (1); The heat sealing assembly (2) comprises a heating assembly (21), a first supporting assembly (22) and a second supporting assembly (23), wherein the first supporting assembly (22) and the second supporting assembly (23) are used to support the metal coating and the plastic film on both sides of the heat sealing chamber (13) respectively; The winding assembly (3) is arranged in the working box (1), and the winding assembly (3) is used to wind the film capacitor formed by heat-sealing the metal coating and the plastic film.

2. A winding device for film capacitor processing according to claim 1, characterized in that: The heating assembly (21) comprises a heating seat (211), an electric heating pipe (212) and an electric push rod (213); The electric heating tube (212) is arranged in the heating seat (211), the heating seat (211) is arranged on the top of the heat sealing chamber (13), the electric push rod (213) is arranged on the top of the working box (1), and the output end of the electric push rod (213) is fixedly connected to the heating seat (211).

3. A winding device for film capacitor processing according to claim 2, characterized in that: A limiting rod (2111) is also provided on the heating seat (211); The limiting rod (2111) is arranged on the top of the heating seat (211), and the limiting rod (2111) passes through the top of the working box (1) and is slidably matched with the top of the working box (1); A limiting block (21111) is arranged on the top of the limiting rod (2111).

4. A winding device for film capacitor processing according to claim 1, characterized in that: The first support assembly (22) comprises a first rotating frame (221), a second rotating frame (222) and a support seat (223); the structure of the second support assembly (23) is the same as that of the first support assembly (22); A first rotating roller (2211) is arranged on the first rotating frame (221), the first rotating roller (2211) is rotatably connected to the first rotating frame (221), and the first rotating frame (221) is arranged above the second rotating frame (222); A second rotating roller (2221) is disposed on the second rotating frame (222), the second rotating roller (2221) is rotatably connected to the second rotating frame (222), and the second rotating frame (222) is disposed on a supporting seat (223); The support seat (223) is arranged on the bottom plate (132).

5. A winding device for film capacitor processing according to claim 4, characterized in that: An adjustment rod (2212) is provided on the first rotating frame (221); An adjustment column (2222) and an adjustment slot (2223) are provided on the second rotating frame (222); the adjustment slot (2223) is provided in the adjustment column (2222); and the adjustment slot (2223) is slidably matched with the adjustment rod (2212); The distance between the first rotating roller (2211) and the second rotating roller (2221) in the second supporting assembly (23) is smaller than that in the first supporting assembly (22).

6. A winding device for film capacitor processing according to claim 5, characterized in that: The second rotating frame (222) is provided with a spring (2224) and an adjusting bolt (2225); The spring (2224) is arranged in the adjustment groove (2223), and two sides of the spring (2224) are respectively fixedly connected to the adjustment rod (2212) and the bottom of the adjustment groove (2223); The adjusting bolt (2225) passes through the bottom of the adjusting column (2222) and the adjusting bolt (2225) is threadedly connected to the adjusting column (2222).

7. A winding device for film capacitor processing according to claim 1, characterized in that: The winding assembly (3) comprises a winding roller (31), a servo motor (32) and a synchronization assembly (33); The winding roller (31) is arranged in the working box (1), and the winding roller (31) is rotatably connected to the working box (1); The servo motor (32) is arranged on the side wall of the working box (1), and the servo motor (32) is used to drive the winding roller (31); The synchronization component (33) is used to synchronously drive the first feeding roller (11) and the second feeding roller (12) while the winding roller (31) rotates.

8. A winding device for film capacitor processing according to claim 7, characterized in that: The synchronous assembly (33) comprises a first synchronous wheel (331), a second synchronous wheel (332), a synchronous belt (333), a first gear (334) and a second gear (335); The first synchronous wheel (331) is arranged on the winding roller (31), the second synchronous wheel (332) is arranged on the first feeding roller (11), and the synchronous belt (333) is sleeved on the first synchronous wheel (331) and the second synchronous wheel (332); The first gear (334) is arranged on the first feeding roller (11), and the second gear (335) is arranged on the second feeding roller (12), and the first gear (334) is meshed with the second gear (335).

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