Capacitor aluminum-foil paper stable trepanning mechanism

Abstract

The utility model discloses a capacitor aluminum-foil paper stable trepanning mechanism, which relates to the technical field of electronic industry, and comprises an aluminum foil, a pressing die, a driving die, a riveting pressing die and a guide pin, the aluminum foil is conveyed below the pressing die and the riveting pressing die, the lower end of the driving die is fixedly connected with a trepanning assembly, the trepanning assembly comprises a stamping knife, and the stamping knife is fixedly connected with the driving die. The upper end of the outer side of the stamping knife is fixedly connected with a limiting ring, the lower end of the limiting ring is fixedly connected with a first spring arranged on the outer side of the stamping knife in a sleeving mode, the stamping knife is located in the pressing die and slides up and down, and the lower end of the first spring is fixedly connected with the pressing die. The utility model discloses a capacitor aluminum-foil paper stable trepanning mechanism. By arranging the pressing die and the receding pressing plate, the aluminum foil and the guide pin pass through the lower portion of the pressing die before being riveted, and preformed holes are formed in the aluminum foil and the guide pin in advance through the stamping knife, so that the bad conditions such as cracking of the aluminum foil during riveting can be avoided, and the production yield of the aluminum foil is further improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic industry technology, specifically to a capacitor aluminum foil paper stabilizing hole opening mechanism. Background Technology

[0002] Currently, the main production process of the nailing and coiling process consists of three major steps: nailing, riveting, and coiling. When using aluminum foil of 8.0mm or larger and making non-polar products, due to the thickness of the aluminum foil material, there are product quality problems such as unclear petal blooming and unstable impedance when directly nailing and riveting the aluminum foil and guide pins. Currently, the aluminum shell needs to be assembled and cleaned in the assembly process. The cleaned products need to be aged before the quality problems can be tested. Only after three processes can the product quality defects in the nailing and coiling process be eliminated, which has a great impact on efficiency, energy consumption, and input-output ratio.

[0003] Therefore, in order to reduce costs and improve product quality, the production process of the nailing and winding process has been improved from three major processes of nailing, riveting, and winding to four major processes of pre-punching, nailing, riveting, and winding, reducing product quality problems such as unclear petal blooming, foil cracking, and unstable impedance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a capacitor aluminum foil paper stabilizing opening mechanism, which solves the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a capacitor aluminum foil stabilizing hole-opening mechanism, comprising an aluminum foil, a pressing mold, a driving mold, a riveting mold, and a guide pin. The aluminum foil is conveyed below the pressing mold and the riveting mold. A hole-opening assembly is fixedly connected to the lower end of the driving mold. The hole-opening assembly includes a punch. A limiting ring is fixedly connected to the upper outer side of the punch. A first spring sleeved on the outer side of the limiting ring is fixedly connected to the lower end of the limiting ring. The punch is slidably disposed within the pressing mold. The lower end of the first spring is fixedly connected to the pressing mold. The punch is configured to punch holes corresponding to the guide pin and the aluminum foil. Pre-reserved holes are pre-punched on the aluminum foil by the punch.

[0006] Furthermore, a relief groove is provided at the lower end of the mold, and a second spring is fixedly connected inside the relief groove. A relief pressure plate is fixedly connected at the lower end of the second spring, and the relief pressure plate is set corresponding to the guide pin and the aluminum foil.

[0007] Furthermore, there are multiple punches, and they are spaced equally apart.

[0008] Furthermore, the relief pressure plate and the guide pin are arranged perpendicularly.

[0009] Furthermore, the relief plate is elastically configured.

[0010] Furthermore, the distance between the relief plate and the die is set to be no more than 5 mm.

[0011] Compared with the above-mentioned background technology, the capacitor aluminum foil paper stabilizing hole opening mechanism provided in this application includes an aluminum foil hole opening mechanism that is now very mature, and core components such as punch, die and relief plate. Its principle relies on pre-punching holes in the aluminum foil and guide pins before riveting the nail roll, so that the aluminum foil will not crack or other defects during riveting.

[0012] This invention provides a capacitor aluminum foil paper stabilizing opening mechanism. Compared with the prior art, it has the following advantages:

[0013] This capacitor aluminum foil paper stabilizing hole opening mechanism: by setting a pressure mold and a relief pressure plate, the aluminum foil and guide pin pass under the pressure mold before riveting, and the punch pre-opens reserved holes in the aluminum foil and guide pin. This can avoid defects such as aluminum foil cracking during riveting, thereby improving the production yield of aluminum foil. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the reserved hole and punch of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the first spring and punch of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the pressure plate and the second spring of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the pressure plate and the mold of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the guide pin after riveting.

[0020] In the diagram: 1. Aluminum foil; 2. Pre-drilled hole; 3. Drive mold; 4. Press mold; 5. Riveting mold; 6. Guide pin; 7. Limiting ring; 8. First spring; 9. Relief groove; 10. Second spring; 11. Relief pressure plate; 12. Punch. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-6 This utility model provides a technical solution: a capacitor aluminum foil paper stabilizing hole-opening mechanism, including aluminum foil 1, pressing mold 4, driving mold 3, riveting mold 5, and guide pin 6. The aluminum foil 1 is conveyed below the pressing mold 4 and riveting mold 5. The lower end of the driving mold 3 is fixedly connected to an opening assembly, which includes a punch 12. The upper outer end of the punch 12 is fixedly connected to a limit ring 7, and the lower end of the limit ring 7 is fixedly connected to a first spring 8 sleeved on the outside of the punch 12. The punch 12 is located inside the pressing mold 4 and slides up and down. The lower end of the first spring 8 is fixedly connected to the pressing mold 4. The punch 12 is punched to correspond to the guide pin 6 and the aluminum foil 1. A pre-reserved hole 2 is pre-punched on the aluminum foil 1 by the punch 12; the aluminum foil 1 and the guide pin 6... During the nailing process, the aluminum foil 1 is conveyed to the lower part of the pressing mold 4 through the nailing machine. The upper drive mold 3 drives the punch 12 downward. The punch 12 slides under the action of the pressing mold 4. The limiting ring 7 fixed on the side wall of the punch 12 presses the first spring 8 downward. The first spring 8 presses the pressing mold 4 downward. After continuous pressing, the cutting edge of the punch 12 punches out of the pressing mold 4 and contacts the aluminum foil 1, pre-drilling holes in the aluminum foil 1 and the guide pin 6. Then, the aluminum foil 1 and the guide pin 6 are conveyed to the lower part of the riveting mold 5. The riveting mold 5 clamps the rivet and punches and rivets the guide pin 6 and the aluminum foil 1. The rivet is pressed on the back side of the guide pin 6 to fix it. Then, the guide pin 6 is combined with the aluminum foil 1. As the aluminum foil 1 is conveyed, it is then rolled and cut.

[0023] like Figure 4 and Figure 5 As shown, a relief groove 9 is provided at the lower end of the die 4. A second spring 10 is fixedly connected inside the relief groove 9. A relief pressure plate 11 is fixedly connected at the lower end of the second spring 10. The relief pressure plate 11 is set corresponding to the guide pin 6 and the aluminum foil 1. When the die 4 moves downward continuously, the relief pressure plate 11 at the lower end of the die 4 first contacts the guide pin 6. The guide pin 6 is pressed onto the aluminum foil 1 by means of both sides. This allows the guide pin 6 and the aluminum foil 1 to be stably clamped before punching. After the clamping moment, the die 4 moves downward to perform the punching operation. When the relief pressure plate 11 moves downward, it is buffered by the second spring 10 to avoid excessive pressing of the relief pressure plate 11.

[0024] like Figure 3 As shown, there are multiple punches 12, and they are evenly spaced; the number of punches 12 is not limited to... Figure 3The number of punches 12 is adjusted according to the production and processing requirements of aluminum foil 1.

[0025] like Figure 3 As shown, the pressure plate 11 and the guide pin 6 are set vertically; the vertical setting of the pressure plate 11 and the guide pin 6 makes it more convenient to press, and the vertical pressing range is larger, which improves the stability of pressing.

[0026] like Figure 5 As shown, the relief pressure plate 11 is elastically set; the relief pressure plate 11 can deform when it comes into contact with the guide pin 6, and the position where the relief pressure plate 11 deforms wraps around the edge of the guide pin 6, thereby improving the stability of pressing.

[0027] like Figure 4 As shown, the distance between the relief plate 11 and the mold 4 is set to no more than 5 mm; the stroke of the relief plate 11 is reduced, thereby increasing the pressing speed of the relief plate 11, so that the relief plate 11 can be pressed and released more quickly.

Claims

1. A capacitor aluminum foil paper stabilizing opening mechanism, comprising an aluminum foil (1), a pressing mold (4), a driving mold (3), a riveting mold (5), and a guide pin (6), wherein the aluminum foil (1) is conveyed below the pressing mold (4) and the riveting mold (5), characterized in that, The lower end of the drive mold (3) is fixedly connected to an opening assembly, which includes a punch (12). The upper outer end of the punch (12) is fixedly connected to a limiting ring (7). The lower end of the limiting ring (7) is fixedly connected to a first spring (8) sleeved on the outside of the punch (12). The punch (12) is located in the mold (4) and slides up and down. The lower end of the first spring (8) is fixedly connected to the mold (4). The punch (12) is punched to correspond to the guide pin (6) and the aluminum foil (1). The aluminum foil (1) is pre-punched with reserved holes (2) by the punch (12).

2. The capacitor aluminum foil paper stabilizing opening mechanism according to claim 1, characterized in that, The lower end of the mold (4) is provided with a relief groove (9), and a second spring (10) is fixedly connected inside the relief groove (9). The lower end of the second spring (10) is fixedly connected with a relief pressure plate (11), and the relief pressure plate (11) is set corresponding to the guide pin (6) and the aluminum foil (1).

3. The capacitor aluminum foil paper stabilizing opening mechanism according to claim 2, characterized in that, The number of punches (12) is multiple, and the spacing between them is equal.

4. The capacitor aluminum foil paper stabilizing opening mechanism according to claim 2, characterized in that, The relief pressure plate (11) and the guide pin (6) are set vertically.

5. The capacitor aluminum foil paper stabilizing opening mechanism according to claim 2, characterized in that, The relief plate (11) is elastically set.

6. The capacitor aluminum foil paper stabilizing opening mechanism according to claim 2, characterized in that, The distance between the relief plate (11) and the mold (4) is set not to exceed 5 mm.

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