Electrode foil cutting device

Abstract

The utility model provides an electrode foil cutting device, including power roller, winding device, feed roller and cutting assembly, winding device includes winding roller, first winding assembly and second winding assembly, first winding assembly includes first foil winding roller, first pivot, first electric cylinder, first swing arm and first torque limiter, first pivot is connected on frame through bearing, and both ends of first foil winding roller are connected through bearing respectively one end of a first swing arm, the other end of first swing arm is connected through bearing one end of first pivot, first pivot is connected on frame through bearing, and the telescopic axle of first electric cylinder is fixedly connected with first swing arm through first connecting rod, and one end of first winding stick is connected with first power wheel through first torque limiter, first foil winding roller is connected with first power wheel through first torque limiter in the utility model, so that the winding tension of first foil winding roller to electrode foil is basically maintained unchangeable, and it is not easy to appear the problem that the winding alignment is not high.

Description

Technical Field

[0001] This utility model relates to a production equipment for aluminum electrolytic capacitors, and more particularly to a foil cutting device. Background Technology

[0002] In the production of aluminum electrolytic capacitors, the electrode foil needs to be cut to a predetermined size. After cutting, the foil needs to be wound up for use in the next process. However, existing foil winding devices rely solely on synchronous rollers. As more and more foil is wound onto the winding rollers, the diameter of the foil rolls increases, leading to inconsistent winding tension and poor alignment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a foil cutting device that can ensure relatively stable winding tension.

[0004] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is as follows: an electrode foil cutting device, including a power roller, a winding device, a feeding roller, and a cutting assembly; the electrode foil passes sequentially through the feeding roller, the cutting assembly, the power roller, and the winding device; the winding device includes a winding roller, a first winding assembly, and a second winding assembly, the first winding assembly and the second winding assembly being respectively disposed on both sides of the winding roller; the first winding assembly includes a first foil roll, a first rotating shaft, a first electric cylinder, a first swing arm, and a first torque limiter; the first rotating shaft is connected to the frame via bearings, the two ends of the first foil roll are respectively connected to one end of a first swing arm via bearings, and the other end of the first swing arm is connected to one end of the first rotating shaft via bearings; the first rotating shaft is connected to the frame via bearings, and the telescopic shaft of the first electric cylinder is fixedly connected to the first swing arm via a first connecting rod; one end of the first foil roll is connected to a first power wheel via the first torque limiter, the first power wheel is connected to the first rotating shaft via a synchronous belt, and the first rotating shaft is connected to the power roller via a synchronous belt; the first electric cylinder is connected to a PLC.

[0005] Preferably, in the above-mentioned foil cutting device, a first arc rack is connected to one end of the first swing arm that is connected to the first rotating shaft. The first arc rack meshes with a first rotating gear, and a first angle encoder is provided on the first rotating gear. The first angle encoder is connected to a PLC.

[0006] Preferably, in the above-mentioned foil cutting device, the second winding assembly and the first winding assembly are symmetrically arranged relative to the winding roller.

[0007] Preferably, in the above-mentioned foil cutting device, the second winding assembly includes a second foil roll, a second rotating shaft, a second electric cylinder, a second swing arm, and a second torque limiter; the second rotating shaft is connected to the frame via bearings, and both ends of the second foil roll are respectively connected to one end of a second swing arm via bearings, and the other end of the second swing arm is connected to one end of the second rotating shaft via bearings; the second rotating shaft is connected to the frame via bearings, and the telescopic shaft of the second electric cylinder is fixedly connected to the second swing arm via a second connecting rod; one end of the second foil roll is connected to a second power wheel via a second torque limiter, the second power wheel is connected to the second rotating shaft via a synchronous belt, and the second rotating shaft is connected to the power roll via a synchronous belt; the second electric cylinder is connected to a PLC.

[0008] Preferably, in the above-mentioned electrode foil cutting device, the cutting assembly includes a cutting shaft and a cutting roller. Cutting blades are evenly arranged on the cutting shaft, facing the cutting roller and cutting the electrode foil on the cutting roller. One end of the cutting shaft and the same end of the cutting roller are connected by a first synchronous gear set, and the linear speed of the cutting blade is greater than or equal to the linear speed of the cutting roller. One end of the cutting roller and the same end of the power roller are connected by a second synchronous gear set, and the linear speed of the cutting roller is the same as the linear speed of the power roller.

[0009] Preferably, in the above-mentioned foil cutting device, a second arc rack is connected to one end of the second swing arm that is connected to the second rotating shaft. The second arc rack meshes with a second rotating gear, and a second angle encoder is provided on the second rotating gear. The second angle encoder is connected to a PLC.

[0010] In the aforementioned foil cutting device, preferably, the feeding roller includes one end of the feeding roller and the same end of the cutting roller connected by a third synchronous gear set.

[0011] Compared with the prior art, the advantages of this utility model are as follows: In this utility model, the first foil roll and the second foil roll are respectively connected to the first power wheel and the second power wheel through the first torque limiter and the second torque limiter, so that the winding tension of the first foil roll and the second foil roll on the electrode foil remains basically unchanged, thereby ensuring the stability of winding and making it less likely to have problems with low winding alignment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the electrode foil cutting device in Example 1.

[0013] Figure 2 This is a schematic diagram showing the positions and structures of the feed roller, cutting assembly, power roller, and winding device in Example 1.

[0014] Figure 3 This is a schematic diagram of the structure of the first winding assembly in Example 1.

[0015] Figure 4 This is a schematic diagram of the connection structure of the first torque limiter on the first foil roll in Example 1.

[0016] Legend

[0017] 1. Frame; 2. Power roller; 3. First winding assembly; 31. First foil roll; 32. First shaft; 33. First electric cylinder; 34. First swing arm; 35. First torque limiter; 36. First drive wheel; 37. First connecting rod; 38. First circular arc rack; 39. First rotating gear;

[0018] 4. Second winding assembly; 41. Second foil roll; 42. Second rotating shaft; 43. Second electric cylinder; 44. Second swing arm; 45. Second connecting rod; 46. Second arc rack; 47. Second rotating gear;

[0019] 5. Rewinding roller; 6. Feeding roller; 61. Third synchronous gear; 7. Cutting assembly; 71. Cutting shaft; 72. Cutting roller; 73. Cutting blade; 74. First synchronous gear; 75. Second synchronous gear; 8. Electrode foil. Detailed Implementation

[0020] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0021] It should be noted that when a component is described as being "fixed to, attached to, connected to or connected to" another component, it can be directly fixed to, attached to, connected to or connected to the other component, or it can be indirectly fixed to, attached to, connected to or connected to the other component through other intermediate connectors.

[0022] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0023] Example 1

[0024] like Figure 1 and Figure 2 The electrode foil cutting device shown includes a power roller 2, a winding device, a feed roller 6, and a cutting assembly 7. The electrode foil 8 passes through the feed roller 6, the cutting assembly 7, the power roller 2, and the winding device. The electrode foil 8 is cut into strips on the cutting assembly 7. The cut electrode foil 8 is then turned on the power roller 2 and then enters the winding device for winding, so that the cut electrode foil strips are formed into a roll.

[0025] like Figure 3 and Figure 4 As shown, in this embodiment, the winding device includes a winding roller 5, a first winding assembly 3, and a second winding assembly 4. In this embodiment, the first winding assembly 3 and the second winding assembly 4 have the same structure, and are respectively disposed on both sides of the winding roller 5. The first winding assembly 3 and the second winding assembly 4 can be symmetrically disposed on both sides of the winding roller 5. After the electrode foil is cut by the cutting assembly, the electrode foil strips are arranged side by side on the winding roller. The first winding assembly 3 and the second winding assembly 4 respectively wind the side by side electrode foil strips on the winding roller 5 in a staggered manner.

[0026] In this embodiment, the first winding assembly 3 includes a first foil roll 31, a first rotating shaft 32, a first electric cylinder 33, a first swing arm 34, and a first torque limiter 35. The first rotating shaft 32 is connected to the frame 1 via bearings. The two ends of the first foil roll 31 are respectively connected to one end of a first swing arm 34 via bearings, and the other end of the first swing arm 34 is connected to one end of the first rotating shaft 32 via bearings. The first rotating shaft 32 is connected to the frame 1 via bearings. The telescopic shaft of the first electric cylinder 33 is fixedly connected to the first swing arm 34 via a first connecting rod 37. One end of the first foil roll is connected to the first power wheel 36 via the first torque limiter 35. The first power wheel 36 is connected to the first rotating shaft 32 via a synchronous belt. The first rotating shaft 32 is connected to the power roll 2 via a synchronous belt. The first electric cylinder 33 is connected to a PLC.

[0027] like Figure 3 and Figure 4 As shown, in this embodiment, one end of the first foil roll 31 is connected to the first power wheel 36 through the first torque limiter 35. Under the action of the first torque limiter 35, the rotational tension of the first power wheel 36 on the first foil roll 31 is relatively stable. This ensures that the winding tension of the foil remains basically unchanged, ensuring the winding quality and reducing the phenomenon of low winding alignment and uneven tension.

[0028] In this embodiment, to effectively save space, the first foil roll 31 is placed close to the take-up roll 5. As the foil is wound up, the diameter of the foil roll increases, at which point the first foil roll 31 needs to be lifted to prevent the foil roll from contacting the take-up roll 5. In this embodiment, as the foil is wound up, the first electric cylinder 33 gradually extends, driving the first swing arm 34 to lift via the first connecting rod 37, thereby lifting the first take-up roll 5 on the first swing arm 34. In this way, as the foil is wound up, the foil roll will not contact the take-up roll 5.

[0029] like Figure 3As shown, in this embodiment, a first arc rack 38 is connected to one end of the first swing arm 34 that is connected to the first rotating shaft 32. The first arc rack 38 meshes with a first rotating gear 39, and a first angle encoder is provided on the first rotating gear 39. The first angle encoder is connected to the PLC. Since the first swing arm 34 is connected to the first arc rack 38 and the first rotating gear 39, the moment the first swing arm 34 lifts and rotates at one end of the first foil roller 31 can be recorded by the first rotating gear 39 and fed back to the PLC by the first angle encoder; thus, the current height of the first take-up roller 5 can be calculated.

[0030] In this embodiment, the thickness of the electrode foil is constant. The first foil roll 31 takes up one turn of electrode foil for each rotation, and the increase in diameter of the electrode foil roll is also fixed. Therefore, the change in the winding angle of the first foil roll 31 relative to the take-up roll 5 is basically fixed for each rotation of the first foil roll 31. In order to ensure that the winding angle of the first foil roll 31 relative to the take-up roll 5 remains basically unchanged, the first electric cylinder 33 can be gradually extended for adjustment.

[0031] In this embodiment, the second winding assembly 4 includes a second foil roll 41, a second rotating shaft 42, a second electric cylinder 43, a second swing arm 44, and a second torque limiter (not shown in the figure). The second rotating shaft 42 is connected to the frame 1 via bearings. The two ends of the second foil roll 41 are respectively connected to one end of a second swing arm 44 via bearings, and the other end of the second swing arm 44 is connected to one end of the second rotating shaft 42 via bearings. The second rotating shaft 42 is connected to the frame 1 via bearings. The telescopic shaft of the second electric cylinder 43 is fixedly connected to the second swing arm 44 via a second connecting rod 45. One end of the second foil roll is connected to a second power wheel (not shown in the figure) via a second torque limiter (not shown in the figure). The second power wheel (not shown in the figure) is connected to the second rotating shaft 42 via a synchronous belt. The second rotating shaft 42 is connected to the power roll 2 via a synchronous belt. The second electric cylinder 43 is connected to a PLC.

[0032] In this embodiment, a second arc rack 46 is connected to one end of the second swing arm 44 that is connected to the second rotating shaft 42. The second arc rack 46 is meshed with the second rotating gear 47. A second angle encoder is provided on the second rotating gear 47. The second angle encoder is connected to the PLC.

[0033] In this embodiment, the first winding component 3 and the second winding component 4 have the same structure; therefore, their winding principle is also the same.

[0034] In this embodiment, the cutting assembly 7 includes a cutting shaft 71 and a cutting roller 72. Cutting blades 73 are evenly arranged on the cutting shaft 71, facing the cutting roller 72 and cutting the electrode foil 8 on the cutting roller 72. One end of the cutting shaft 71 and the same end of the cutting roller 72 are connected by a first set of synchronous gears 74, and the linear velocity of the cutting blades 73 is greater than or equal to the linear velocity of the cutting roller 72. One end of the cutting roller 72 and the same end of the power roller 2 are connected by a second set of synchronous gears 75, and the linear velocity of the cutting roller 72 is the same as the linear velocity of the power roller 2. In this embodiment, the feeding roller 6 includes one end of the feeding roller 6 and the same end of the cutting roller 72 connected by a third set of synchronous gears 61.

[0035] In this embodiment, the first foil roll 31 and the second foil roll 41 are connected to the first power wheel 36 and the second power wheel through the first torque limiter 35 and the second torque limiter, respectively, so that the first foil roll 31 and the second foil roll 41 maintain a basically constant winding tension for the electrode foil 8, thereby ensuring the stability of winding and making it less likely to have problems with low winding alignment.

Claims

1. A foil cutting device, characterized in that: The system includes a power roller, a winding device, a feed roller, and a cutting assembly. The foil passes sequentially through the feed roller, the cutting assembly, the power roller, and the winding device. The winding device includes a winding roller, a first winding assembly, and a second winding assembly, which are respectively located on both sides of the winding roller. The first winding assembly includes a first foil roll, a first rotating shaft, a first electric cylinder, a first swing arm, and a first torque limiter. The first rotating shaft is connected to the frame via bearings. Both ends of the first foil roll are connected to one end of a first swing arm via bearings, and the other end of the first swing arm is connected to one end of the first rotating shaft via bearings. The first rotating shaft is connected to the frame via bearings. The telescopic shaft of the first electric cylinder is fixedly connected to the first swing arm via a first connecting rod. One end of the first foil roll is connected to a first power wheel via the first torque limiter. The first power wheel is connected to the first rotating shaft via a synchronous belt, and the first rotating shaft is connected to the power roller via a synchronous belt. The first electric cylinder is connected to a PLC.

2. The electrode foil cutting device according to claim 1, characterized in that: The first swing arm is connected to a first circular arc rack at one end, which is connected to the first rotating shaft. The first circular arc rack meshes with a first rotating gear, and a first angle encoder is provided on the first rotating gear. The first angle encoder is connected to the PLC.

3. The electrode foil cutting device according to claim 1 or 2, characterized in that: The second winding assembly is symmetrically arranged with respect to the winding rollers of the first winding assembly.

4. The electrode foil cutting device according to claim 3, characterized in that: The second winding assembly includes a second foil roll, a second rotating shaft, a second electric cylinder, a second swing arm, and a second torque limiter. The second rotating shaft is connected to the frame via bearings. Both ends of the second foil roll are connected to one end of a second swing arm via bearings, and the other end of the second swing arm is connected to one end of the second rotating shaft via bearings. The second rotating shaft is connected to the frame via bearings. The telescopic shaft of the second electric cylinder is fixedly connected to the second swing arm via a second connecting rod. One end of the second foil roll is connected to a second power wheel via the second torque limiter. The second power wheel is connected to the second rotating shaft via a synchronous belt, and the second rotating shaft is connected to the power roll via a synchronous belt. The second electric cylinder is connected to a PLC.

5. The electrode foil cutting device according to claim 4, characterized in that: The second swing arm is connected to a second circular arc rack at one end, which is connected to the second rotating shaft. The second circular arc rack meshes with a second rotating gear, and a second angle encoder is provided on the second rotating gear. The second angle encoder is connected to the PLC.

6. The electrode foil cutting device according to claim 1, characterized in that: The cutting assembly includes a cutting shaft and a cutting roller. Cutting blades are evenly arranged on the cutting shaft, facing the cutting roller and cutting the foil on the cutting roller. One end of the cutting shaft and the same end of the cutting roller are connected by a first synchronous gear set, and the linear speed of the cutting blades is greater than or equal to the linear speed of the cutting roller. One end of the cutting roller and the same end of the power roller are connected by a second synchronous gear set, and the linear speed of the cutting roller is the same as the linear speed of the power roller.

7. The electrode foil cutting device according to claim 1, characterized in that: The feed roller includes one end of the feed roller and the same end of the cutting roller connected by a third synchronous gear set.

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