Cutting device for aluminum foil of aluminum electrolytic capacitor

Abstract

The utility model relates to an aluminum electrolytic capacitor aluminum foil cutting device which comprises a shell, one side of the shell is provided with a working groove, one side of the inner side wall of the working groove is rotationally connected with a rotating shaft used for being sleeved with an aluminum foil roll, and one side of the rotating shaft is provided with a traction unit used for pulling the aluminum foil. A cutting platform is arranged on the side, away from the rotating shaft, of the traction unit, and a cutting mechanism is arranged above the side, away from the traction unit, of the cutting platform. The utility model relates to the technical field of capacitor production. According to the cutting device for the aluminum electrolytic capacitor aluminum foil, through the arranged cutting platform, the aluminum foil can be adsorbed to the cutting table through negative pressure, so that the aluminum foil is prevented from being turned over and bent to generate wrinkles, a notch of the aluminum foil is smooth when the aluminum foil is cut, and the difficulty that the aluminum foil is wound on a capacitor pin is reduced; therefore, the production efficiency of the aluminum electrolytic capacitor can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitor production, in particular to a cutting device for aluminum foil of aluminum electrolytic capacitors. Background Art

[0002] An electrolytic capacitor is a type of capacitor. The metal foil is the positive electrode, the metal oxide film close to the positive electrode is the dielectric, and the cathode is composed of conductive materials, electrolytes and other materials. The electrolytic capacitor is named because the electrolyte is the main part of the cathode.

[0003] In the prior art, aluminum electrolytic capacitors are usually small in size, so the required aluminum foil is also small, so the finished aluminum foil needs to be cut into specified sizes and then wrapped around the pins. However, the aluminum foil is very thin, which makes it easy for the aluminum foil to bend and wrinkle when cutting, resulting in irregular cuts on the finished aluminum foil after cutting, making it more difficult to wrap the aluminum foil around the pins, affecting the subsequent production of aluminum electrolytic capacitors. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a cutting device for aluminum foil of an aluminum electrolytic capacitor, so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A cutting device for aluminum foil of an aluminum electrolytic capacitor comprises a shell, a working groove is provided on one side of the shell, a rotating shaft for sleeved aluminum foil roll is rotatably connected to one side of the inner side wall of the working groove, a traction unit for traction of aluminum foil is provided on one side of the rotating shaft, a cutting platform is provided on the side of the traction unit away from the rotating shaft, and a cutting mechanism is provided above the side of the cutting platform away from the traction unit.

[0007] By adopting the above technical solution, the aluminum foil can be adsorbed by the provided cutting platform so that the aluminum foil is attached to the platform, thereby preventing the aluminum foil from bending or wrinkling, thereby achieving a better cutting effect of the cutting mechanism.

[0008] In a preferred example, the utility model can be further configured as follows: the traction unit includes an active roller, a driven roller and a rubber sleeve, one side of the active roller and the driven roller are rotatably connected to the inner wall of the working groove, the outer walls of the active roller and the driven roller are sleeved with rubber sleeves, and the outer side of the shell is connected to a motor for driving the active roller to rotate.

[0009] By adopting the above technical solution, the aluminum foil can be pulled and conveyed, which is convenient for continuous cutting of the aluminum foil and improves the cutting efficiency.

[0010] In a preferred example, the utility model can be further configured as follows: a fan is connected to the bottom of the cutting platform, a slope is processed on one side of the cutting platform away from the traction unit, and a plurality of air ducts connected to the fan are opened on the top of the slope.

[0011] By adopting the above technical solution, through the provided fan and air duct, negative pressure can be used to adsorb the aluminum foil on the surface of the cutting platform, effectively avoiding the bending and curling of the aluminum foil and improving the cutting effect.

[0012] In a preferred example, the utility model can be further configured as follows: the cutting mechanism includes a cutting knife, a pressing block and a rubber pad, the top of the cutting knife is connected to the inner top wall of the working groove through a hydraulic press, a notch is provided on one side of the cutting knife close to the cutting platform and a pressing block is provided, and the bottom of the pressing block is connected to a rubber pad for extruding aluminum foil.

[0013] By adopting the above technical solution, the provided pressing block can fix the aluminum foil when the cutting knife cuts the aluminum foil, thereby improving the cutting effect, while the rubber pad provided at the bottom of the pressing block can prevent the aluminum foil from being crushed, thereby improving the quality of the aluminum foil.

[0014] In a preferred example, the utility model can be further configured as follows: a slide rod is connected to the top of the pressure block, a slide groove matching the slide rod is formed on the inner top wall of the notch, and a spring is arranged between the top of the slide rod and the slide groove.

[0015] By adopting the above technical solution, the sliding rod and the spring are arranged, so that the pressing block can maintain stable contact with the aluminum foil when the cutting knife cuts the aluminum foil, thereby achieving a better fixing effect of the aluminum foil when cutting.

[0016] In a preferred example, the present invention can be further configured as follows: when the spring pushes the slide bar to the lowest end of the slide slot, the bottom of the pressing block is lower than the bottom of the cutting knife.

[0017] By adopting the above technical solution, by making the bottom of the pressing block lower than the bottom of the cutting knife, the pressing block can first fix the aluminum foil when the cutting knife cuts the aluminum foil, thereby improving the cutting effect.

[0018] In summary, the present invention includes at least one of the following beneficial technical effects:

[0019] 1. The aluminum foil cutting device for aluminum electrolytic capacitors can use negative pressure to adsorb the aluminum foil on the cutting table through the provided cutting platform to prevent the aluminum foil from curling and bending to produce wrinkles, so that the aluminum foil has a smooth cut when cutting, and the difficulty of winding the aluminum foil on the capacitor pins is reduced, thereby improving the production efficiency of aluminum electrolytic capacitors;

[0020] 2. The aluminum foil cutting device for an aluminum electrolytic capacitor can fix the aluminum foil before cutting it by means of a cutting mechanism, thereby avoiding the deviation of the aluminum foil during cutting and causing an uneven cut, thereby improving the cutting effect of the aluminum foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 The utility model is a structural schematic diagram of a cutting device for aluminum foil of an aluminum electrolytic capacitor.

[0023] Figure 2 The utility model is a schematic diagram of the structure of a traction unit in a cutting device for aluminum foil of an aluminum electrolytic capacitor.

[0024] Figure 3 The utility model is a schematic structural diagram of a cutting platform in a cutting device for cutting aluminum foil of an aluminum electrolytic capacitor.

[0025] Figure 4 The utility model is a schematic structural diagram of a cutting mechanism in a cutting device for cutting aluminum foil of an aluminum electrolytic capacitor.

[0026] In the figure, 1. shell; 2. working groove; 3. rotating shaft; 4. traction unit; 41. active roller; 42. driven roller; 43. rubber sleeve; 5. cutting platform; 6. cutting mechanism; 61. cutting knife; 62. pressure block; 63. rubber pad; 7. fan; 8. inclined plane; 9. airway; 10. hydraulic press; 11. notch; 12. slide rod; 13. slide groove; 14. motor. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings. Example

[0028] Reference Figure 1 - Figure 4 The utility model discloses a cutting device for aluminum foil of an aluminum electrolytic capacitor, comprising a shell 1, a working groove 2 is provided on one side of the shell 1, a rotating shaft 3 for sleeved aluminum foil roll is rotatably connected to one side of the inner wall of the working groove 2, a traction unit 4 for traction of aluminum foil is provided on one side of the rotating shaft 3, a cutting platform 5 is provided on the side of the traction unit 4 away from the rotating shaft 3, and a cutting mechanism 6 is provided above the side of the cutting platform 5 away from the traction unit 4.

[0029] In this embodiment, the aluminum foil roll is placed on the rotating shaft 3, and then the aluminum foil passes through the traction unit 4 and the motor 14 is started. The operation of the motor 14 causes the traction unit 4 to drive the aluminum foil to move forward on the cutting platform 5. When the aluminum foil moves to the inclined surface 8 area of ​​the cutting platform 5, the air duct 9 opened on the inclined surface 8 will generate negative pressure due to the operation of the fan 7. The negative pressure is used to adsorb the aluminum foil on the surface of the cutting platform 5, thereby preventing the aluminum foil from rolling up and bending to cause wrinkles when cutting. Subsequently, the cutting mechanism 6 is pushed down by the hydraulic press 10, and the aluminum foil is sliced ​​by the cutting knife 61.

[0030] In a further preferred embodiment of the present invention, Figure 2 As shown, the traction unit 4 includes an active roller 41, a driven roller 42 and a rubber sleeve 43. One side of the active roller 41 and the driven roller 42 are rotatably connected to the inner wall of the working groove 2. The outer walls of the active roller 41 and the driven roller 42 are both sleeved with a rubber sleeve 43. The outer side of the shell 1 is connected to a motor 14 for driving the active roller 41 to rotate.

[0031] In this embodiment, because the aluminum foil is relatively thin and soft, when the rotating shaft 3 rotates to release the aluminum foil, the aluminum foil will naturally sag due to gravity and cannot be transported normally. Therefore, the aluminum foil passes between the active roller 41 and the driven roller 42, and then the active roller 41 is driven by the operation of the motor 14 to rotate and pull the aluminum foil.

[0032] The surface of the aluminum foil is smooth, so the friction between the aluminum foil and the active roller 41 and the driven roller 42 is relatively low, causing the active roller 41 to slip on the surface of the aluminum foil when rotating, thereby affecting the traction effect. Therefore, a rubber sleeve 43 is sleeved on the outer walls of the active roller 41 and the driven roller 42. The friction force of the rubber sleeve 43 can stably pull the aluminum foil when the active roller 41 rotates, so that the aluminum foil can move stably on the cutting platform 5.

[0033] In a further preferred embodiment of the present invention, Figure 3 As shown, a fan 7 is connected to the bottom of the cutting platform 5 , and a slope 8 is processed on the side of the cutting platform 5 away from the traction unit 4 , and a plurality of air passages 9 connected to the fan 7 are opened on the top of the slope 8 .

[0034] In this embodiment, when the aluminum foil roll releases the aluminum foil, the aluminum foil will remain curled up under the action of stress, so that the cutting mechanism 6 cannot effectively control the cutting width when cutting the aluminum foil, and wrinkles will appear when the curled aluminum foil is squeezed, resulting in an uneven cut of the aluminum foil, which increases the difficulty of subsequent winding on the capacitor pins. Therefore, a fan 7 is provided at the bottom of the cutting platform 5. The fan 7 is used to generate negative pressure in the air duct 9, and the negative pressure can be used to adsorb the aluminum foil on the cutting platform 5 to prevent the aluminum foil from curling up, thereby improving the cutting effect of the aluminum foil, making the cut smooth and reducing the difficulty of cutting.

[0035] Because when the aluminum foil is attached to the cutting platform 5 under the action of negative pressure, the friction between the aluminum foil and the cutting platform 5 increases, the traction unit 4 cannot effectively push the aluminum foil forward when conveying the aluminum foil, causing the aluminum foil to be squeezed and deformed. Therefore, an inclined surface 8 is provided on the top of the cutting platform 5. The inclined surface 8, the weight of the aluminum foil itself and the thrust applied to the aluminum foil by the traction unit 4 are used to enable the aluminum foil to move forward normally and avoid mutual squeezing of the aluminum foil.

[0036] In a further preferred embodiment of the present invention, Figure 4 As shown, the cutting mechanism 6 includes a cutting knife 61, a pressing block 62 and a rubber pad 63. The top of the cutting knife 61 is connected to the inner top wall of the working groove 2 through a hydraulic press 10. The cutting knife 61 is provided with a notch 11 and a pressing block 62 on one side close to the cutting platform 5. The bottom of the pressing block 62 is connected to a rubber pad 63 for extruding aluminum foil.

[0037] In this embodiment, when the cutting knife 61 cuts the aluminum foil, the cutting knife 61 will apply a downward force to the aluminum foil at the moment of contact with the aluminum foil, causing the aluminum foil to deviate, thereby affecting the flatness of the cut. Therefore, a pressing block 62 is provided to fix the aluminum foil when the cutting knife 61 cuts the aluminum foil, thereby preventing the aluminum foil from deviating during cutting, thereby ensuring the flatness of the cut.

[0038] The aluminum foil is relatively soft because it is relatively thin, so it is easy to damage the aluminum foil when the pressing block 62 squeezes the aluminum foil. Therefore, a rubber pad 63 is provided at the bottom of the pressing block 62 to reduce the pressure on the aluminum foil through the flexibility of the rubber pad 63 to prevent the aluminum foil from being damaged.

[0039] In a further preferred embodiment of the present invention, Figure 4 As shown, the top of the pressing block 62 is connected with a slide rod 12 , the inner top wall of the notch 11 is provided with a slide groove 13 matched with the slide rod 12 , and a spring is provided between the top of the slide rod 12 and the slide groove 13 .

[0040] In this embodiment, because the cutting knife 61 needs to be pressed down to cut the aluminum foil, the cutting knife 61 needs to continue to move downward after the pressing block 62 fixes the aluminum foil, and the pressing block 62 is supported by the cutting platform 5 and cannot move. Therefore, a notch 11 is provided for the sliding of the pressing block 62, so that the pressing block 62 and the cutting knife 61 can be separated. Subsequently, a sliding rod 12 is provided on the top of the pressing block 62, and a sliding groove 13 cooperating with the sliding rod 12 is configured to make the movement of the pressing block 62 more stable. The spring provided in the sliding groove 13 can provide a downward pressure to the pressing block 62, so that the pressing block 62 can maintain a stable contact with the aluminum foil, thereby achieving a better fixing effect of the aluminum foil.

[0041] In a further preferred embodiment of the present invention, Figure 3 As shown, when the spring pushes the slide bar 12 to the lowest end of the slide slot 13 , the bottom of the pressing block 62 is lower than the bottom of the cutting knife 61 .

[0042] In this embodiment, when the cutting mechanism 6 cuts the aluminum foil, the cutting knife 61 will contact the aluminum foil, and the aluminum foil will be offset at the moment the cutting knife 61 contacts the aluminum foil, so that the bottom of the pressing block 62 is lower than the bottom of the cutting knife 61 before the cutting knife 61 cuts the aluminum foil. Therefore, when the aluminum foil is cut, the pressing block 62 will first fix the aluminum foil, effectively avoiding the flatness of the cut affected by the offset of the aluminum foil during the cutting process.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A cutting device for aluminum foil of an aluminum electrolytic capacitor, comprising a housing (1), characterized in that: A working groove (2) is provided on one side of the housing (1); a rotating shaft (3) for sleeve-mounting an aluminum foil roll is rotatably connected to one side of the inner wall of the working groove (2); a traction unit (4) for traction of the aluminum foil is provided on one side of the traction shaft (3); a cutting platform (5) is provided on a side of the traction unit (4) away from the traction shaft (3); and a cutting mechanism (6) is provided above a side of the cutting platform (5) away from the traction unit (4).

2. The cutting device for aluminum foil of an aluminum electrolytic capacitor according to claim 1, characterized in that: The traction unit (4) comprises a driving roller (41), a driven roller (42) and a rubber sleeve (43); one side of the driving roller (41) and the driven roller (42) are both rotatably connected to the inner wall of the working groove (2); the outer walls of the driving roller (41) and the driven roller (42) are both sleeved with a rubber sleeve (43); and the outer side of the housing (1) is connected to a motor (14) for driving the driving roller (41) to rotate.

3. The cutting device for aluminum foil of an aluminum electrolytic capacitor according to claim 1, characterized in that: The bottom of the cutting platform (5) is connected to a fan (7), a side of the cutting platform (5) away from the traction unit (4) is processed with an inclined surface (8), and a plurality of air passages (9) connected to the fan (7) are provided at the top of the inclined surface (8).

4. The cutting device for aluminum foil of an aluminum electrolytic capacitor according to claim 3, characterized in that: The cutting mechanism (6) comprises a cutting knife (61), a pressing block (62) and a rubber pad (63); the top of the cutting knife (61) is connected to the inner top wall of the working groove (2) via a hydraulic press (10); a notch (11) and a pressing block (62) are provided on a side of the cutting knife (61) close to the cutting platform (5); and the bottom of the pressing block (62) is connected to a rubber pad (63) for extruding aluminum foil.

5. The cutting device for aluminum foil of an aluminum electrolytic capacitor according to claim 4, characterized in that: The top of the pressing block (62) is connected to a sliding rod (12), the inner top wall of the notch (11) is provided with a sliding groove (13) matching with the sliding rod (12), and a spring is provided between the top of the sliding rod (12) and the sliding groove (13).

6. The cutting device for aluminum foil of an aluminum electrolytic capacitor according to claim 5, characterized in that: When the spring pushes the slide rod (12) to the lowest end of the slide slot (13), the bottom of the pressing block (62) is lower than the bottom of the cutting knife (61).

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