A winding device for processing a capacitor film

Abstract

The utility model discloses a kind of winding devices for capacitor film processing, including winding frame, leveling roller and calender mechanism, wherein, winding frame surface is equipped with winding roller group, for driving film material winding;Leveling roller is set to two, surface is equipped with spin guide rib and spin groove respectively, each other meshing guide, can realize transverse development in film material transmission process, eliminate wrinkle;Calender mechanism includes fixed base, inclined strut, bearing roller, support cylinder and down-pressing assembly, down-pressing assembly is provided with press roll, deflection ear, crank rod and connecting rod, press roll and bearing roller are all conical structure and elastically abut film material. The device has automatic leveling, flexible calendering and tension self-adaptive adjusting function, solve the existing film material transmission process surface wrinkle, unevenly press together, winding deviation and other problems, applicable to high-precision capacitor film processing production.

Description

Technical Field

[0001] This utility model relates to the field of film winding technology, specifically a winding device for capacitor film processing. Background Technology

[0002] As a common insulating dielectric material in electronic and electrical devices, capacitor film has high requirements for its surface quality and flatness. In the existing capacitor film production and processing, winding equipment mostly adopts a simple guide roller and roll drive structure. Although it can realize continuous film feeding and roll forming operations, it generally lacks an effective leveling and calendering structure in the film material transmission path. This easily leads to problems such as wrinkles, slippage, and uneven tension of the film material during transmission, which in turn affects the subsequent winding quality.

[0003] In the prior art, a typical structure uses parallel arranged rubber rollers or metal rollers to guide the membrane material and achieves transmission through frictional contact. However, most of these structures only have linear clamping functions and do not have the ability to guide the lateral extension of the membrane material edge. Especially when the membrane material tension control is unstable or the initial positioning of the membrane roll is inaccurate, membrane material edge folding, lateral displacement, or surface wrinkling are very likely to occur.

[0004] In addition, although some systems have introduced pressure roller structures in the clamping section to enhance the stability of the film material, most pressure roller mechanisms adopt a fixed position rigid pressing method, which cannot flexibly adjust the pressure according to changes in film thickness or tension fluctuations. Moreover, the source of the clamping force often relies on manually set springs or cylinders, which has problems such as slow response, complex structure and insufficient adjustment accuracy.

[0005] Therefore, existing winding equipment still has significant shortcomings in terms of film leveling, clamping and calendering, and tension control, making it difficult to meet the requirements of process stability and quality consistency for capacitor film materials in precision manufacturing scenarios. To address these issues, it is necessary to propose a winding device for capacitor film processing with improved structure, flexible pressing adjustment, and integrated leveling and winding functions. Utility Model Content

[0006] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, this utility model provides a winding device for capacitor film processing, which aims to achieve precise control and high-quality winding of film material through a structural combination with guiding and leveling capabilities and flexible calendering capabilities, thereby improving the overall machine operation stability and the quality of finished film rolls.

[0008] The capacitor film processing winding device comprises three main parts: a winding frame, leveling rollers, and a calendering mechanism, specifically configured as follows: The winding frame has a set of winding rollers on its surface, providing traction drive and winding / rewinding functions for the capacitor film material, ensuring continuous movement of the film material within the system. Two leveling rollers are configured, rotating in relative contact, providing mechanical support and leveling during film material transport. Specifically, one leveling roller has a guide ridge on its surface, and the other has a groove on its surface that matches the guide ridge; the two rollers engage in a helical meshing guide during rotation. This structure allows the film material to obtain lateral guiding force during transport, effectively unfolding the film edges, eliminating wrinkles, and improving film surface flatness.

[0009] In a preferred example, the guide ribs are composed of two segments of helical ribs with opposite directions of rotation, and are symmetrically arranged about the centerline of the leveling roller. Specifically, this structure can generate equal and opposite forces on both sides of the membrane material, enabling the membrane material to stretch laterally stably and eliminating stretching or wrinkling.

[0010] In a preferred example, the calendering mechanism includes a fixed base, a diagonal strut, and a pressing assembly disposed on the surface of the fixed base. One end of the diagonal strut is rotatably mounted on the surface of the fixed base, and the other end is rotatably mounted with a tapered support roller; the support roller is used to form an upper and lower clamping structure with the pressure roller to control the calendering of the film material.

[0011] In a preferred example, a support cylinder is rotatably mounted on the surface of the fixed seat. The support cylinder is an electrically telescopic rod structure, with one end connected to a diagonal support rod for supporting and adjusting the deflection angle of the diagonal support rod, thereby changing the position and angle of the bearing roller. Specifically, the support cylinder can realize real-time adjustment of the film tension and pressing force, improving the stability of the film material when adapting to different winding speeds or thickness changes.

[0012] In a preferred example, the pressing assembly includes a drive seat, deflection ears, pressure rollers, a crank rod, and a connecting rod. The drive seat is fixedly mounted on a fixed base, with deflection ears symmetrically mounted on both sides. A conical pressure roller is rotatably mounted on the deflection ears, and the pressure roller abuts against a lower conical support roller for clamping and pressing the film material.

[0013] In a preferred example, the pressure roller is connected to the deflection lug via a crank, and an elastic deflection force is generated by the spring wheel, driving the crank to rotate synchronously, thus enabling the pressure roller to flexibly press the film material. Specifically, the spring wheel consists of a spring cassette and a gear at its shaft end, with the gear meshing with a gear plate on the crank. This structure allows for automatic compensation of uneven pressing caused by changes in film tension or thickness during the pressing process, thereby improving the compliance and stability of the calendering process.

[0014] In a preferred example, the number of crank rods and connecting rods is set to two sets, which are symmetrically installed on both sides of the transmission seat. The surfaces of the crank rods on both sides are provided with meshing toothed disc structures. Specifically, this configuration can realize the synchronous deflection action of the two ends of the pressure roller, maintain the pressure balance, and effectively avoid the film material being pinched, rolled, or subjected to force on one side.

[0015] In a preferred example, the calendering mechanism is configured as two sets, which are fixed on the left and right sides of the winding frame respectively, and calendering is performed on both sides of the film material simultaneously. Specifically, this configuration ensures that the film material is in a good tension and flat state before winding, thereby improving the consistency and tightness of the final wound film roll.

[0016] In a preferred example, the tapered contact surfaces of the pressure roller and the support roller are set to a basically horizontal state to ensure a constant clamping force and horizontal guidance of the film material in the thickness direction. Specifically, this structure can prevent the film material from sagging, shifting, or deviating from the guide path before winding, thereby improving the overall stability of the equipment operation and the yield of finished products.

[0017] In summary, this invention achieves smooth unfolding, stable tension, and high-precision calendering of the film material during transport and winding through a combination of spiral guiding leveling, conical flexible calendering, and dynamic pressure control. The device features a reasonable structure, strong adaptability, and high control precision, significantly improving the automation level and product consistency of capacitor film processing equipment, and possesses significant potential for widespread application.

[0018] The beneficial effects achieved by this utility model are as follows:

[0019] 1. In this utility model, by setting a leveling roller assembly with a spiral guiding structure, the film material can obtain lateral stretching force when it is conducted between the spiral guide ridge and the spiral groove, effectively unfolding the edge wrinkles of the film material, improving flatness, improving the surface quality of the capacitor film, and providing a good foundation for subsequent calendering and winding processes.

[0020] 2. In this utility model, by constructing a double-conical calendering mechanism including a diagonal brace, a bearing roller, a pressure roller, a crank transmission mechanism and a spring wheel, the elastic contact adjustment between the pressure roller and the bearing roller can be realized, ensuring uniform force and stable tension during the transmission of the film material, thereby preventing the film material from slipping or wrinkling, improving winding consistency and finished product qualification rate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the leveling roller structure according to one embodiment of the present invention;

[0023] Figure 3This is a schematic diagram of the installation structure of the calendering mechanism according to an embodiment of the present invention;

[0024] Figure 4 This is a partial structural diagram of a calendering mechanism according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the pressing component structure according to an embodiment of the present invention.

[0026] Figure label:

[0027] 100. Winding frame; 110. Winding roller assembly; 200. Leveling roller; 210. Rotary guide rib;

[0028] 300. Calendering mechanism; 310. Fixed seat; 320. Diagonal brace; 330. Pressing assembly; 321. Support cylinder; 322. Bearing roller; 331. Transmission seat; 332. Deflection lug; 333. Pressure roller; 334. Crank rod; 335. Connecting rod; 336. Spring wheel. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0030] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0031] The following describes, with reference to the accompanying drawings, some embodiments of a winding device for capacitor film processing provided by this utility model.

[0032] Combination Figures 1-5 As shown, the present invention provides a winding device for capacitor film processing, including a winding frame 100, a leveling roller 200 and a calendering mechanism 300.

[0033] The winding frame 100 is a support and transmission structure, and is provided with a winding roller group 110 mounted on its surface. The winding roller group 110 is used to provide winding drive for capacitor film material to achieve roll storage.

[0034] Two leveling rollers 200 are configured and arranged opposite each other, rotatably mounted at corresponding positions on the winding frame 100. The two leveling rollers 200 rotate in contact with each other to clamp the film material and achieve a leveling function during transmission. One leveling roller 200 has a spiral guide rib 210 on its surface, and the other leveling roller 200 has a spiral groove adapted to the spiral guide rib 210 on its surface. The two engage with each other during operation, so that the film material receives lateral guiding force during transmission, causing the film material to extend to both ends, thereby eliminating wrinkles on the surface of the film material. Specifically, the spiral guide rib 210 is composed of two spiral ribs arranged in opposite directions and symmetrically arranged about the center line of the leveling roller 200 to ensure stable unfolding of the film material under bidirectional force.

[0035] The calendering mechanism 300 includes a fixed base 310, a diagonal brace 320, a support cylinder 321, a support roller 322, and a pressing assembly 330. The fixed base 310 is fixedly installed on the left and right sides of the winding frame 100. This embodiment provides two sets of calendering mechanisms for supporting and positioning other components. One end of the diagonal brace 320 is rotatably mounted on the surface of the fixed base 310, and the other end is rotatably connected to the support roller 322. The support roller 322 has a conical structure with its conical surface facing upwards, used to cooperate with the pressing roller 333 (described later) to form a film material holding channel.

[0036] The support cylinder 321 is an electric telescopic rod structure. One end is rotatably mounted on the surface of the fixed base 310, and the other end is movably connected to the surface of the inclined support rod 320. It is used to adjust the deflection angle of the inclined support rod 320, thereby controlling the height and angle of the bearing roller 322 and realizing the adjustment of the film tension and holding state.

[0037] The pressing assembly 330 includes a transmission base 331, a deflection lug 332, a pressure roller 333, a crank rod 334, and a connecting rod 335. The transmission base 331 is fixedly mounted on the fixed base 310. The deflection lugs 332 are symmetrically arranged on both sides of the transmission base 331, and the pressure roller 333 is rotatably mounted on its surface. The pressure roller 333 has a conical structure with its conical surface facing downward, forming an upper and lower conical pressing structure with the support roller 322. The conical surfaces of the pressure roller 333 and the support roller 322 abut against each other to clamp the film material and achieve calendering and conveying.

[0038] The crankshaft 334 is rotatably mounted on the surface of the transmission seat 331, with one end hinged to the surface of the deflection lug 332. The connecting rod 335 is located on the same side of the crankshaft 334 and arranged parallel to it. The spring wheel 336 includes a spring cassette and a gear fixed to the shaft end of the cassette. The gear meshes with a gear plate on the surface of the crankshaft 334. When the spring wheel 336 releases its elastic deflection force, it drives the crankshaft 334 to rotate, causing the pressure roller 333 to generate a downward elastic pressing force, maintaining stable contact between it and the receiving roller 322, and improving the adaptive performance of the calendering force during film material transport.

[0039] There are two sets of crank rods 334 and connecting rods 335, which are symmetrically installed on both sides of the transmission base 331. The surfaces of the crank rods 334 on both sides are provided with meshing gear discs to ensure that the pressure rollers 333 on both sides press synchronously, thereby improving the uniformity and stability of film pressing.

[0040] In actual operation, the film material is fed from one end under the traction of the winding roller group 110, and passes sequentially through the leveling roller 200 and the calendering mechanism 300. The leveling roller 200 extends the edge of the film material outward and unfolds folds through the helical guiding engagement between the guide rib 210 and the groove. Subsequently, the film material passes through the calendering channel formed by the pressure roller 333 and the support roller 322, and is calendered and leveled under the elastic contact of the conical surface. The position of the support roller 322 can be flexibly controlled by adjusting the angle of the diagonal support rod 320 by the support cylinder 321; at the same time, the spring wheel 336 provides a stable pressing force, so that the calendering of the film material can adapt to different thickness changes.

[0041] like Figure 4 and Figure 5 As shown, each of the calendering mechanisms 300 and 300 is arranged and fixed on both sides of the winding frame 100, so that the two edges of the film material can be clamped and calendered at the same time, which can effectively improve the winding quality and transmission stability.

[0042] The conical surfaces of the pressure roller 333 and the support roller 322 are set to be basically horizontal to ensure that the contact surface between the two rollers remains stable in the direction of film thickness, thereby reducing defects such as film curling and deviation.

[0043] Working principle and usage process of this utility model:

[0044] This device is mainly used for the leveling, calendering and winding processes of capacitor film materials. Through the coordinated work of multiple key components, it realizes the functions of flattening, tensioning and winding of film materials during processing, ensuring the quality of finished products.

[0045] Winding drive: The winding frame 100 provides continuous winding power to the capacitor film through the winding roller group 110, providing traction force for the entire transmission system.

[0046] Leveling process: Two leveling rollers 200 rotate relative to each other to clamp the capacitor film. During the transmission of the film material through the leveling rollers 200, the guide rib 210 and its matching groove mesh with each other to generate a spiral guiding effect, which makes the film material extend to both sides, thereby effectively eliminating wrinkles and improving the flatness of the film surface.

[0047] Calendering clamping: The calendering mechanism 300 includes a support roller 322 and a pressure roller 333, both of which are conical structures with their surfaces abutting each other to form a clamping channel. The film material is pressed between the two rollers to form a uniform tension, and the conical structure guides the film material to extend and pull it to both sides, maintaining a flattened effect. The support roller 322 is mounted on a diagonal support rod 320, and its position and deflection angle can be adjusted by a support cylinder 321.

[0048] The pressure roller 333 is mounted on the deflection lug 332, and its elastic pressing state is controlled by the crank 334 and the spring wheel 336 to ensure that stable pressure is applied to the film material.

[0049] Pressure adjustment: The spring wheel 336 provides elastic deflection force, which drives the crank 334 to rotate synchronously, thereby realizing dynamic adjustment of the angle and clamping force of the pressure roller 333.

[0050] Multiple structural combinations: The overall system adopts a symmetrical arrangement, with two sets of calendering mechanisms 300, which are fixed on both sides of the winding frame 100 respectively, to synchronously clamp the two sides of the membrane material, maintain the tension of the membrane material evenly, and prevent deviation.

[0051] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A winding apparatus for capacitor film processing, characterized in that, The system includes a winding frame (100), a leveling roller (200), and a calendering mechanism (300). The surface of the winding frame (100) is provided with a winding roller group (110) for driving the winding of the capacitor film. There are two leveling rollers (200), and the two leveling rollers (200) rotate relative to each other. The calendering mechanism (300) includes a fixed base (310), a diagonal support rod (320), and a pressing assembly (330) fixed to the surface of the fixed base (310). One end of the diagonal support rod (320) is rotatably mounted on the surface of the fixed base (310), and the other end of the diagonal support rod (320) is rotatably mounted with a bearing roller (322). A support cylinder (321) is rotatably mounted on the surface of the fixed seat (310), and the other end of the support cylinder (321) is movably connected to the surface of the diagonal support rod (320). The pressing assembly (330) includes a transmission seat (331), a deflection ear (332), and a crank rod (334) and a connecting rod (335) rotatably mounted on the surface of the transmission seat (331). One end of the crank rod (334) and the connecting rod (335) is rotatably connected to the surface of the deflection ear (332). A pressure roller (333) is rotatably mounted on the surface of the deflection ear (332). The pressure roller (333) and the bearing roller (322) are both conical structures and their surfaces abut against each other.

2. The winding apparatus for capacitor film processing according to claim 1, characterized in that, One of the leveling rollers (200) has a swirl guide rib (210) on its surface, and the other leveling roller (200) has a swirl groove on its surface that is compatible with the swirl guide rib (210). The surfaces of the swirl guide rib (210) and the swirl groove mesh with each other.

3. The winding apparatus for capacitor film processing according to claim 2, characterized in that, The spiral guide rib (210) includes two spiral ribs arranged in opposite directions, and the two spiral ribs are arranged symmetrically about the center line of the leveling roller (200).

4. The winding apparatus for capacitor film processing according to claim 1, characterized in that, The support cylinder (321) is an electric telescopic rod structure used to support the diagonal support rod (320) and the bearing roller (322) to deflect and abut against the bottom surface of the pressure roller (333).

5. The winding apparatus for capacitor film processing according to claim 1, characterized in that, The number of the deflection lugs (332), cranks (334) and connecting rods (335) are all two sets and symmetrically arranged on both sides of the transmission seat (331). The surfaces of the cranks (334) on both sides are provided with gears that mesh with each other. The connecting rods (335) and cranks (334) are arranged in parallel.

6. The winding apparatus for capacitor film processing according to claim 5, characterized in that, A spring wheel (336) is fixedly mounted on the surface of the transmission seat (331). The spring wheel (336) includes a spring winding box and a gear fixed to the shaft end of the spring winding box. The gear meshes with the gear plate on the surface of the crank (334) for transmission.

7. The winding apparatus for capacitor film processing according to claim 1, characterized in that, The contact surfaces of the pressure roller (333) and the bearing roller (322) are horizontal. The number of the calendering mechanism (300) is two sets, which are fixed on both sides of the winding frame (100) for clamping and transmission of the capacitor film on both sides.

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