Capacitance film positioning assembly
By designing a capacitor film positioning component, and utilizing components such as an electric telescopic rod, elastic elements, and a high-speed fan, the problems of unstable positioning and flatness during the capacitor film cutting process were solved, thus achieving cutting stability and flatness.
Patent Information
- Application Number
- CN202520469290.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-18
AI Technical Summary
The existing capacitor film lacks a positioning structure during the cutting process, resulting in uneven cutting and possible stretching and wrinkling.
The capacitor diaphragm positioning assembly, including the main body and the positioning mechanism, utilizes components such as an electric telescopic rod, elastic element, pressure plate, high-speed fan and pressure roller to achieve stable positioning and flatness control of the capacitor diaphragm.
This effectively avoids stretching and wrinkling of the capacitor film during the cutting process, ensuring the neatness and flatness of the cut, and reducing damage to the film surface.
Smart Images

Figure CN223918118U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of capacitor film production technology, specifically a capacitor film positioning component. Background Technology
[0002] Capacitor film refers to the electrical-grade plastic film used as the dielectric material of film capacitors. Depending on the material, it can be divided into polyester capacitor film, polypropylene capacitor film, polystyrene capacitor film, polycarbonate capacitor film, polyimide capacitor film, etc. The capacitor film is the core dielectric material of film capacitors. Film capacitors are mainly used in many industries such as electronics, home appliances, communications, power, LED lighting, and new energy.
[0003] The existing capacitor film cutting process has the following drawbacks: during cutting, due to the lack of a corresponding positioning structure, the cutting blade will exert a certain pressure on the capacitor film, causing the capacitor film to shift, resulting in cutting and pulling, and causing uneven cutting surfaces. Therefore, this application proposes a capacitor film positioning component. Utility Model Content
[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, the technical solution adopted by this utility model is as follows: a capacitor film positioning assembly, comprising: a main body mechanism and a positioning mechanism, wherein the main body mechanism includes a base plate, electric telescopic rods symmetrically fixed on both sides of the base plate, a top plate installed at the top of the electric telescopic rods, a driving component installed at the top of the top plate, and a cutting component slidably disposed on the top plate and engaged with the driving component.
[0006] The positioning mechanism includes elastic elements fixed on both sides of the top plate, pressure plates fixed at the bottom of the elastic elements, a tube installed on the top of the pressure plate and communicating with the inner cavity of the pressure plate, a high-speed fan installed on the inner wall of the tube, a gantry frame symmetrically arranged on both sides of the bottom plate, a pressure roller installed on the inner side of the gantry frame, and multiple elastic rods fixed on the gantry frame and fixedly connected to the pressure roller.
[0007] The pressure plate has an internal cavity, and the bottom end of the pressure plate has an array of circular holes that communicate with the cavity.
[0008] In a preferred embodiment, the present invention can be further configured such that the elastic element includes a housing fixed to the top plate, a movable rod with one end movably fitted into the inner cavity of the housing and the other end extending out of the housing and fixedly connected to the pressure plate, and a spring connecting the inner top wall of the housing and the movable rod.
[0009] In a preferred embodiment, the present invention can be further configured such that: a rectangular hole is opened in the middle of the base plate, and a first rubber pad layer is provided on the top surface of the base plate on both sides of the rectangular hole.
[0010] In a preferred embodiment, the present invention can be further configured such that a second rubber pad layer is installed at the bottom end of the pressure plate.
[0011] In a preferred embodiment, the present invention can be further configured such that the pressing roller includes a U-shaped frame disposed inside the gantry, a pressing roller rotatably mounted on the U-shaped frame, and round rods symmetrically fixed on both sides of the pressing roller and moving through the gantry.
[0012] In a preferred embodiment, the present invention can be further configured such that the driving component includes a threaded rod rotatably mounted on the top of the top plate and a motor fixed to one side of the top plate with its shaft fixedly connected to the end of the threaded rod.
[0013] In a preferred embodiment, the present invention can be further configured such that: the cutting element includes a sliding seat slidably disposed at the top of the top plate and passing through the top plate, a threaded sleeve fixed at the top of the sliding seat, and a cutting blade fixed at the bottom of the sliding seat, wherein the threaded rod passes through the threaded sleeve and the two are engaged with each other.
[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0015] 1. In this utility model, electric telescopic rods are installed on both sides of the base plate, and a top plate is fixed to the top of the electric telescopic rods. The driving component and the cutting component are installed on the top plate. At the same time, elastic components are installed on both sides of the top plate, and pressure plates are fixed to the bottom of the elastic components. With the above arrangement, when the electric telescopic rods drive the top plate to move down, the top plate moves down and drives the pressure plate to move down through the elastic components. This, together with the base plate, presses and positions the two sides of the capacitor film cutting position, ensuring the stability of the capacitor film during the cutting process and avoiding the pulling phenomenon during the cutting of the capacitor film. In addition, a gantry frame is installed on both sides of the base plate, and a pressure roller is set on the gantry frame. An elastic rod is installed on the gantry frame and connected to the pressure roller. With this arrangement, the flatness of the capacitor film can be ensured before and after the capacitor film is cut, and wrinkles are avoided during the movement of the capacitor film, which would affect the cutting effect.
[0016] 2. In this utility model, a first rubber pad layer is installed on both sides of the rectangular hole on the base plate, and a second rubber pad layer is installed at the bottom end of the pressure plate. This increases the friction between the pressure plate and the capacitor diaphragm, improves positioning stability, and avoids damage to the surface of the capacitor diaphragm. In addition, a cavity is set inside the pressure plate, and circular holes are arranged in an array at the bottom end of the pressure plate to communicate with the cavity. A tube connected to the cavity is installed at the top of the pressure plate, and a high-speed fan is installed on the inner wall of the tube. With the above configuration, when the pressure plate is released upward, the high-speed fan starts and blows air into the cavity at high speed. After the high-speed airflow enters the cavity, it is ejected through the circular holes. The airflow pressure keeps the electric mold close to the surface of the base plate when the pressure plate rises, avoiding the capacitor diaphragm from moving upward synchronously when the pressure plate moves upward due to static electricity or other factors, further increasing the practical performance. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the present invention;
[0019] Figure 3 This is a schematic diagram of the main structure of the present utility model;
[0020] Figure 4 This is a bottom view of part of the structure of this utility model;
[0021] Figure 5 This utility model Figure 4 Cross-sectional view;
[0022] Figure 6 This is a cross-sectional schematic diagram of the pressure roller of this utility model.
[0023] Figure label:
[0024] 100. Main body; 110. Base plate; 111. Rectangular hole; 112. First rubber pad layer; 120. Electric telescopic rod; 130. Top plate; 140. Drive component; 141. Threaded rod; 142. Motor; 150. Cutting component; 151. Sliding seat; 152. Threaded sleeve; 153. Cutting blade;
[0025] 200. Positioning mechanism; 210. Elastic element; 211. Housing; 212. Movable rod; 213. Spring; 220. Pressure plate; 221. Cavity; 222. Round hole; 223. Second rubber pad layer; 230. Tube body; 240. High-speed fan; 250. Gantry frame; 260. Pressure roller; 261. U-shaped frame; 262. Pressure roller; 263. Round rod; 270. Elastic rod. Detailed Implementation
[0026] 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.
[0027] Some embodiments of this utility model are described below with reference to the accompanying drawings. Example 1
[0028] Combination Figure 1-6 As shown, this embodiment provides a capacitor film positioning assembly, including: a main body mechanism 100 and a positioning mechanism 200.
[0029] The main structure 100 includes a base plate 110, electric telescopic rods 120 symmetrically fixed on both sides of the base plate 110, a top plate 130 installed on the top of the electric telescopic rods 120, a drive member 140 installed on the top of the top plate 130, and a cutting member 150 slidably disposed on the top plate 130 and engaged with the drive member 140.
[0030] The base plate 110 is used to install other components. The electric telescopic rod 120 is fixed on both sides of the base plate 110 to install the top plate 130 and drive the top plate 130 to move up and down.
[0031] The top plate 130 is used to install the drive unit 140 and the cutting blade 153. The drive unit 140 includes a threaded rod 141 rotatably mounted on the top of the top plate 130 and a motor 142 fixed on one side of the top plate 130 with its shaft fixedly connected to the end of the threaded rod 141. Meanwhile, the cutting unit 150 includes a sliding seat 151 slidably disposed on the top of the top of the top plate 130 and passing through the top plate 130, a threaded sleeve 152 fixed on the top of the sliding seat 151, and a cutting blade 153 fixed on the bottom of the sliding seat 151. The threaded rod 141 passes through the threaded sleeve 152, and the two mesh with each other. When the motor 142 starts, it drives the threaded rod 141 to rotate. The rotation of the threaded rod 141 drives the threaded sleeve 152 to move, which in turn drives the sliding seat 151 to move. The movement of the sliding seat 151 drives the cutting blade 153 to move, thereby cutting the capacitor film.
[0032] A rectangular hole 111 is provided in the middle of the base plate 110 for the cutting blade 153 to extend into. A first rubber pad layer 112 is provided on the top surface of the base plate 110 on both sides of the rectangular hole 111, which can cooperate with the positioning mechanism 200 to press and position the capacitor film.
[0033] The positioning mechanism 200 is used to press and position the capacitor film during cutting. It includes elastic members 210 fixed on both sides of the top plate 130, pressure plate 220 fixed on the bottom of the elastic member 210, tube 230 installed on the top of the pressure plate 220 and communicating with the inner cavity of the pressure plate 220, high-speed fan 240 installed on the inner wall of the tube 230, gantry frame 250 symmetrically arranged on both sides of the bottom plate 110, pressing roller 260 installed on the inner side of the gantry frame 250, and multiple elastic rods 270 fixed on the gantry frame 250 and fixedly connected to the pressing roller 260.
[0034] The elastic element 210 is used to install the pressure plate 220 and ensure that the pressure plate 220 can press the capacitor film onto the base plate 110. The elastic element 210 includes a housing 211 fixed on the top plate 130, a movable rod 212 with one end movably fitted into the inner cavity of the housing 211 and the other end extending out of the housing 211 and fixedly connected to the pressure plate 220, and a spring 213 connecting the inner top wall of the housing 211 and the movable rod 212. The housing 211 is used to install the movable rod 212 and limit the movable rod 212. The movable rod 212 is used to fix the pressure plate 220. The spring 213 keeps the movable rod 212 in an outwardly extended state, thereby ensuring that the pressure plate 220 can stably press the capacitor film onto the base plate 110.
[0035] The pressure plate 220 is rectangular and is used to press the electric diaphragm. A second rubber pad 223 is installed at the bottom of the pressure plate 220. Together with the first rubber pad 112, it can increase the friction between the pressure plate and the capacitor diaphragm, improve the positioning stability, and at the same time avoid damage to the surface of the capacitor diaphragm.
[0036] In addition, a cavity 221 is opened inside the pressure plate 220. The bottom end of the pressure plate 220 has an array of circular holes 222 that communicate with the cavity 221. At the same time, the tube body 230 is connected to the inside of the cavity 221. The high-speed fan 240 faces the cavity 221. With this setting, when the pressure plate 220 is released upward, the high-speed fan 240 is activated and blows air into the cavity 221 at high speed. After the high-speed airflow enters the cavity 221, it is ejected through the circular holes 222. The airflow pressure makes the electric mold still stick to the surface of the base plate 110 when the pressure plate 220 rises, avoiding the capacitor film from moving upward synchronously when the pressure plate 220 moves upward due to factors such as static electricity. In addition, a dustproof net is installed at the top of the tube body 230 to prevent dust from entering the inner cavity of the tube body 230.
[0037] The gantry frame 250 is used to install the pressure roller 260. The pressure roller 260 includes a U-shaped frame 261 set inside the gantry frame 250, a pressure roller 262 rotatably mounted on the U-shaped frame 261, and a round rod 263 symmetrically fixed on both sides of the pressure roller 262 and moving through the gantry frame 250. The U-shaped frame 261 is used to install the pressure roller 262. The pressure roller 262 can flatten the wrinkles and protrusions on the surface of the capacitor film to ensure the flatness of the capacitor film before and after cutting. The round rod 263 can limit the movement of the U-shaped frame 261. The structure of the elastic rod 270 is similar to that of the elastic element 210. It can apply downward pressure to the pressure roller 260, so that the pressure roller 260 presses against the surface of the capacitor film.
[0038] The working principle and usage process of this utility model are as follows: During use, the capacitor film is passed through the base plate 110. At this time, under the action of the elastic rod 270, the pressure roller 260 can flatten the wrinkles on the surface of the capacitor film as it passes through, ensuring the flatness of the capacitor film. During cutting, the electric telescopic rod 120 drives the top plate 130 to move downwards. The downward movement of the top plate 130 drives the elastic element 210 to move downwards, which in turn drives the pressure plate 220 to move downwards. The closing base plate 110 presses and positions the two sides of the capacitor film at the cutting position. At this time, the motor 142 starts, driving the threaded... The rod 141 rotates, and the rotation of the threaded rod 141 drives the cutting part 150 to move, cutting the capacitor film. After the cutting is completed, the electric telescopic rod 120 moves upward and drives the pressure plate 220 to move upward through the elastic element 210. When the pressure plate 220 moves upward, the high-speed fan 240 starts and blows air into the cavity 221 at an accelerated speed. After the high-speed airflow enters the cavity 221, it is ejected through the round hole 222. The airflow pressure makes the electric mold still stick to the surface of the base plate 110 when the pressure plate 220 rises, avoiding the capacitor film from moving upward synchronously when the pressure plate 220 moves upward due to static electricity or other factors.
[0039] 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 capacitive film positioning assembly, comprising: The utility model relates to a cutting device for paper roll, including main body mechanism (100) and positioning mechanism (200), its characterized in be, main body mechanism (100) includes bottom plate (110), the electric telescopic handle (120) of symmetry fixed in bottom plate (110) both sides, install the top plate (130) of electric telescopic handle (120) top, install the drive part (140) of top plate (130) top and the cutting part (150) of sliding setting in top plate (130) and with drive part (140) engagement, Positioning mechanism (200) includes the elastic part (210) of fixed in top plate (130) both sides, fixed in the pressing plate (220) of elastic part (210) bottom, install the pipe body (230) of pressing plate (220) top and with pressing plate (220) inner chamber intercommunication, install high -speed fan (240) on pipe body (230) inner wall, symmetry sets up gantry (250) in bottom plate (110) both sides, install the compression roller (260) of gantry (250) inboard and multiple elastic rod (270) with compression roller (260) fixed connection are fixed in gantry (250), The inside of the pressing plate (220) is hollowed out (221), and the bottom end of the pressing plate (220) is arrayed with a circular hole (222) in communication with the hollow cavity (221).
2. A capacitive film positioning assembly according to claim 1, wherein, The elastic part (210) includes a housing (211) fixed to the top plate (130), a movable rod (212) movably fitted into the inner cavity of the housing (211) and protruding out of the housing (211) and fixedly connected with the pressing plate (220), and a spring (213) connecting the inner top wall of the housing (211) with the movable rod (212).
3. A capacitive film positioning assembly according to claim 1, wherein, The middle part of the bottom plate (110) is provided with a rectangular hole (111), and the first rubber pad layer (112) is arranged on the top end surface of the bottom plate (110) on both sides of the rectangular hole (111).
4. The capacitive film positioning assembly of claim 1, wherein, The bottom end of the pressing plate (220) is provided with a second rubber pad layer (223).
5. The capacitive film positioning assembly of claim 1, wherein, The compression roller (260) includes a U-shaped frame (261) arranged in the inner side of the gantry (250), a compression roller (262) rotatably installed on the U-shaped frame (261), and a circular rod (263) symmetrically fixed on both sides of the compression roller (262) and movably penetrating through the gantry (250).
6. A capacitive film positioning assembly according to claim 1, wherein, The drive part (140) includes a threaded rod (141) rotatably installed on the top end of the top plate (130), and a motor (142) fixed on one side of the top plate (130) and having an axis fixedly connected with the end of the threaded rod (141).
7. A capacitive film positioning assembly according to claim 6, wherein, The cutting part (150) includes a sliding seat (151) slidingly arranged on the top end of the top plate (130) and penetrating through the top plate (130), a threaded sleeve (152) fixed on the top end of the sliding seat (151), and a cutting knife (153) fixed on the bottom end of the sliding seat (151), the threaded rod (141) penetrates through the threaded sleeve (152), and both are in engagement with each other.