Flattening device of film capacitor winding machine

Abstract

The utility model discloses a flattening device of a film capacitor coiler, which comprises a supporting assembly and a flattening assembly, the flattening assembly comprises a mounting substrate, a mounting rod, a rotating piece and a connecting rod, one end of the mounting rod is rotatably connected with the supporting assembly after penetrating through the mounting substrate, the other end of the mounting rod is connected with one end of the connecting rod, and the other end of the connecting rod is connected with the supporting assembly. The connecting rod penetrates through the rotating piece to be connected, and the other end of the connecting rod is connected with the supporting assembly. The mounting rod is adjusted to rotate to drive the connecting rod, so that different angles are formed between the connecting rod and the film, and the film flattening device can adapt to flattening of films with different wrinkle degrees; the maximum flattening effect can be achieved by manufacturing a curved bar with a higher radian, and the flattening device is superior to a traditional flattening mode and high in use universality.

Description

Technical Field

[0001] The utility model belongs to the technical field of capacitor preparation, and in particular relates to a flattening device of a film capacitor winding machine. Background Art

[0002] Film capacitor winding machines can cause varying degrees of wrinkling in film rolls due to front-end processing and storage, as well as during the winding process. This wrinkling significantly impacts the quality of the core winding used in capacitor production, leading to reduced withstand voltage and capacitance variations. Therefore, a device capable of flattening the film is required.

[0003] Patent application number CN201210502550.4 discloses a film flattening roller comprising a roller, ribs, and a rotating shaft. The roller is provided with ribs on its surface, and the rotating shaft is located at each end. To ensure smooth and even transfer of the film product, the ribs consist of left-hand and right-hand spiral ribs, which are distributed helically on the roller surface. The ribs are welded to the roller surface using one or more round steel wires.

[0004] However, the structure of the above patent has limited flattening effect on film products, and its flattening effect is fixed because the flattening effect is determined by the angle of the ribs on its surface. This structure cannot adapt to the flattening of films with different degrees of wrinkles, and its usage scenarios are relatively limited.

[0005] At the same time, the structure of this patent requires that the center line of the film be as close as possible to the center line of the roller axis to obtain a better flattening effect. If the film deviates from the center line of the roller axis, or the film does not cover the center line of the roller axis, the structure loses the flattening effect.

[0006] The patent document with application number CN202210902819.1 discloses a diaphragm flattening device, which relates to the field of diaphragm winding technology, and in particular to a diaphragm flattening device, comprising: a flattening roller, the outer peripheral surface of the flattening roller is provided with at least two strip grooves, the two strip grooves are symmetrical and distributed in an eight-shaped shape along the radial section passing through the axial midpoint of the flattening roller, the two ends of the two strip grooves respectively form a large opening end and a small opening end, and the flattening roller rotates circumferentially along the small opening end toward the large opening end. The diaphragm flattening device of the present invention is provided with an eight-shaped groove on the flattening roller. When the diaphragm contacts the eight-shaped groove, the inclined strip groove will exert a lateral expansion force on the film, pushing the diaphragm to both sides, effectively achieving the purpose of flattening the diaphragm. However, this device also has the above-mentioned defects, and requires the center line of the film to be as close as possible to the center line of the roller axis. Utility Model Content

[0007] In order to solve the above technical problems, the utility model provides a flattening device for a film capacitor winding machine.

[0008] The utility model is achieved through the following technical solutions.

[0009] The utility model provides a flattening device for a film capacitor winding machine, comprising a support assembly and a flattening assembly, wherein the flattening assembly comprises a mounting base, a mounting rod, a rotating member and a connecting rod, wherein one end of the mounting rod is connected to the support assembly after being rotatably connected to the mounting base, and the other end of the mounting rod is connected to one end of the connecting rod, the connecting rod is connected to the rotating member through the rotating member, and the other end of the connecting rod is connected to the support assembly.

[0010] Preferably, scale lines are provided on the mounting base plate, the rotating member is a high-speed bearing, the connecting rod is provided in a curved shape, and a plurality of rotating members are provided on the connecting rod.

[0011] Preferably, the support assembly includes a support frame and a fixed frame, the bottom of the support frame is connected to the fixed frame, and the support frame is set at two places, the top of one support frame is connected to the mounting rod, and the top of the other support frame is rotatably connected to the connecting rod.

[0012] Preferably, a rotating ring is provided on the mounting rod, the mounting rod passes through the rotating ring and is connected, and a pointer is provided on the rotating ring.

[0013] Preferably, a rotating disk is provided on the support frame, and the support frame is connected to the connecting rod via the rotating disk.

[0014] Preferably, the support frame and the fixing frame are vertically connected, and the support frame and the fixing frame are connected by bolts or welding.

[0015] Preferably, a hole is provided on the fixing frame.

[0016] Preferably, the rotating disk is coaxially arranged with the mounting rod, and non-coaxially arranged with the connecting rod, and the diameter of the rotating disk is larger than the diameter of the connecting rod.

[0017] The beneficial effects of the present invention are:

[0018] This utility model adjusts the mounting rod to rotate and drive the connecting rod, so that the connecting rod and the film assume different angles, adapting to the flattening of films with varying degrees of wrinkles. This flattening effect can be maximized by manufacturing a curved rod with a higher curvature, which is superior to traditional flattening methods. The connecting rod protrudes outward in any position, achieving a good flattening effect wherever the film passes through the device. By rotating the rotating ring while observing the pointer and scale lines, the flattening effect can be adjusted: when the plane of the connecting rod is perpendicular to the direction of film passage, the flattening effect is maximized, while rotating it to the sides achieves a smaller flattening effect, making it highly versatile. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a structural diagram of the flattening assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the installation base plate of the utility model;

[0022] Figure 4 It is a structural diagram of the rotating disk of the utility model;

[0023] Figure 5 It is a structural diagram of the support assembly of the utility model;

[0024] Figure 6 It is a schematic diagram of the use of the utility model;

[0025] In the figure: 1-mounting base plate, 2-scale line, 3-mounting rod, 31-rotating ring, 32-pointer, 4-rotating member, 5-connecting rod, 6-support frame, 7-fixing frame, 71-hole, 8-rotating disk, 9-film. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the described solution.

[0027] Example:

[0028] like Figures 1 to 6 As shown, a flattening device of a film capacitor winding machine includes a support assembly and a flattening assembly, the flattening assembly includes a mounting base plate 1, a mounting rod 3, a rotating member 4 and a connecting rod 5, one end of the mounting rod 3 is connected to the support assembly after being rotatably connected to the mounting base plate 1, the other end of the mounting rod 3 is connected to one end of the connecting rod 5, the connecting rod 5 is connected through the rotating member 4, and the other end of the connecting rod 5 is connected to the support assembly.

[0029] The mounting base 1 is provided with scale lines 2, the rotating member 4 is a high-speed bearing, the connecting rod 5 is bent, and a plurality of rotating members 4 are provided on the connecting rod 5. The arc formed by the connecting line of the edges of all rotating members 4 has the same arc as the connecting rod 5.

[0030] The support assembly includes a support frame 6 and a fixed frame 7. The bottom of the support frame 6 is connected to the fixed frame 7. The support frame 6 is set at two places. The top of one support frame 6 is connected to the mounting rod 3, and the top of the other support frame 6 is rotatably connected to the connecting rod 5.

[0031] The mounting rod 3 is provided with a rotating ring 31, which may be provided with an anti-slip groove for easy rotation. The mounting rod 3 is connected to the rotating ring 31, and a pointer 32 is provided on the rotating ring 31. The mounting rod 3 is rotated by rotating the rotating ring 31, and the pointer 32 is aligned with different scale lines 31 to adjust the angle of the flattening device relative to the film 9.

[0032] The support frame 6 is provided with a rotating disk 8, which is rotatably connected to the support frame 6. The support frame 6 is connected to the connecting rod 5 via the rotating disk 8. The rotating disk 8 is coaxial with the mounting rod 3 and non-coaxial with the connecting rod 5. The diameter of the rotating disk 8 is larger than the diameter of the connecting rod 5. This arrangement prevents interference with the curved connecting rod 5 during rotation.

[0033] The support frame 6 and the fixing frame 7 are vertically connected and are connected by bolts or welding. The support frame 6 can be hollow to reduce weight.

[0034] The fixing frame 7 is provided with a hole 71 , and the fixing frame 7 can be connected to the mounting platform by passing a bolt through the hole 71 , thereby fixing the flattening device on the mounting platform.

[0035] When the film 9 passes through the device, the film is bent from a straight line into a curve by the rotating member 4 and the connecting rod 5, thereby increasing the width of the film 9 and applying forces to both sides of the film 9 to achieve the effect of flattening the wrinkles.

[0036] The curvature of the connecting rod 5 is 5-10 degrees, preferably 7 degrees, and the central angle formed by the connecting rod 5 is 20-40 degrees, preferably 27 degrees.

[0037] A method for using a winding machine flattening device comprises the following steps:

[0038] S1: Install the fixing frame 7 at the film pulling-out position of the winding machine so that the film is placed above the rotating member 4. Since the connecting rod 5 is bent, when the connecting rod 5 is rotated until it is not in contact with the film, it is the minimum adjustable gear of the rotating ring 31. At this time, the flattening device has no flattening effect on the film. This state can be used for films without wrinkles.

[0039] S2: Rotate the rotating ring 31 until the bending part of the connecting rod 5 contacts the film. Continue to rotate the rotating ring 31 to make the bending part of the connecting rod 5 upward. Decide whether to continue rotating the rotating ring 31 according to the number of wrinkles on the film until the bending part of the connecting rod 5 reaches the highest position. The connecting rod 5 lifts the film from the middle. At this time, the flattening area of ​​the film by the flattening device is the largest. After determining the angle, record the position of the pointer 32 corresponding to the scale line 2. Later, the wrinkle situation of the film can be visually judged and directly adjusted to this angle.

Claims

1. A flattening device for a film capacitor winding machine, characterized in that: The invention comprises a support assembly and a flattening assembly, wherein the flattening assembly comprises a mounting base plate (1), a mounting rod (3), a rotating member (4) and a connecting rod (5), one end of the mounting rod (3) is connected to the support assembly after being rotatably connected to the mounting base plate (1), the other end of the mounting rod (3) is connected to one end of the connecting rod (5), the connecting rod (5) is connected to the rotating member (4), and the other end of the connecting rod (5) is connected to the support assembly.

2. The flattening device of a film capacitor winding machine according to claim 1, characterized in that: A scale line (2) is provided on the mounting base plate (1), the rotating member (4) is a high-speed bearing, the connecting rod (5) is provided in a curved manner, and a plurality of rotating members (4) are provided on the connecting rod (5).

3. The flattening device of a film capacitor winding machine according to claim 1, characterized in that: The support assembly comprises a support frame (6) and a fixing frame (7); the bottom of the support frame (6) is connected to the fixing frame (7); the support frame (6) is provided at two locations, the top of one support frame (6) is connected to the mounting rod (3), and the top of the other support frame (6) is rotatably connected to the connecting rod (5).

4. The flattening device of a film capacitor winding machine according to claim 1, characterized in that: A rotating ring (31) is provided on the installation rod (3), the installation rod (3) passes through the rotating ring (31) and is connected, and a pointer (32) is provided on the rotating ring (31).

5. The flattening device of a film capacitor winding machine according to claim 3, characterized in that: A rotating disk (8) is provided on the support frame (6), and the support frame (6) is connected to the connecting rod (5) via the rotating disk (8).

6. The flattening device of a film capacitor winding machine according to claim 3, characterized in that: The support frame (6) and the fixing frame (7) are vertically connected, and the support frame (6) and the fixing frame (7) are connected by bolts or welding.

7. The flattening device of a film capacitor winding machine according to claim 3, characterized in that: The fixing frame (7) is provided with a hole (71).

8. The flattening device of a film capacitor winding machine according to claim 5, characterized in that: The rotating disk (8) is coaxially arranged with the mounting rod (3), and the rotating disk (8) is non-coaxially arranged with the connecting rod (5). The diameter of the rotating disk (8) is greater than the diameter of the connecting rod (5).

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