Copper strip edge folding mechanism

Abstract

The utility model relates to an edge folding mechanism, and discloses a copper strip edge folding mechanism which comprises a frame body, a roller wheel set rotationally arranged on the frame body and a driving assembly. The roller set comprises a first rolling assembly, a second rolling assembly and a third rolling assembly which are sequentially arranged in the copper strip conveying direction. When the copper strip passes through the pressing gap in the first rolling assembly, an outwards-expanded folded edge with an obtuse included angle is formed between the edge of the copper strip and a copper strip body, and when the copper strip passes through the pressing gap in the second rolling assembly, an inwards-folded folded edge with an acute included angle is formed between the edge of the copper strip and the copper strip body. When the copper strip passes through the pressing gap in the third rolling assembly, the edge of the copper strip and the copper strip body are completely pressed, and finally the folded copper strip is output from the device. According to the device, automatic edge folding and flattening are achieved, the copper strip edge folding efficiency is improved, the labor intensity of workers is reduced, and the large-scale production requirement is met. The copper strip edge folding device is suitable for the copper strip production industry and used for achieving copper strip edge folding.

Description

Technical Field

[0001] This utility model relates to a folding mechanism, specifically a copper strip folding mechanism. Background Technology

[0002] Copper strip is a metallic component with electrical conductivity, thermal conductivity, and corrosion resistance. It is mainly used in the production of electrical components, lamp holders, battery caps, buttons, seals, and connectors. In some copper strip production processes, to enhance the strip's strength and save material costs, the edges on both sides are folded into a double layer and pressed tightly; this is called edge folding, ensuring that the edges of the copper strip have a double layer thickness. The conventional edge folding operation is done manually, with the folded edges then manually pressed flat.

[0003] The above-mentioned manual folding and flattening methods can be used in small-scale production, but for large-scale production, such as folding copper strips for electrostatic shielding of transformer coils, where the copper strip length can reach hundreds of meters, manual folding is inefficient and labor-intensive. Utility Model Content

[0004] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide a copper strip folding mechanism to improve copper strip folding efficiency, reduce labor intensity for workers, and meet the requirements of large-scale production.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A copper strip folding mechanism includes a frame, a roller assembly rotatably mounted on the frame, and a drive assembly, wherein the output end of the drive assembly is connected to the roller assembly.

[0007] The roller assembly includes a first roller pressing assembly, a second roller pressing assembly, and a third roller pressing assembly arranged sequentially along the copper strip conveying direction. Each of the first, second, and third roller pressing assemblies includes a pressure roller shaft, a pressure roller sleeved on the pressure roller shaft, an idler roller shaft, and an idler roller sleeved on the idler roller shaft. The axes of the pressure roller shaft and the idler roller shaft are perpendicular to the copper strip conveying direction. The pressure roller and the idler roller are arranged vertically and vertically, forming a pressing gap between them for the copper strip to pass through. There are two pressure rollers and two idler rollers, with one pressure roller at each end of the pressure roller shaft and one idler roller at each end of the idler roller shaft. The output end of the drive assembly is connected to the pressure roller shaft and the idler roller shaft for transmission.

[0008] The pressing gap in the first roller pressing assembly forms an outward folded edge with an obtuse angle between the copper strip edge and the copper strip body; the pressing gap in the second roller pressing assembly forms an inward folded edge with an acute angle between the copper strip edge and the copper strip body; and the pressing gap in the third roller pressing assembly completely presses the copper strip edge and the copper strip body together.

[0009] As a limitation of this utility model: the angle between the edge of the copper strip formed after passing through the pressing gap in the first roller pressing assembly and the copper strip body is any angle between 110° and 170°; the angle between the edge of the copper strip formed after passing through the pressing gap in the second roller pressing assembly and the copper strip body is any angle between 20° and 75°; and the angle between the edge of the copper strip formed after passing through the pressing gap in the third roller pressing assembly and the copper strip body is 0°.

[0010] As another limitation of this utility model: the first roller pressing assembly includes a first roller group, a second roller group, and a third roller group arranged sequentially along the copper strip conveying direction; the first roller group, the second roller group, and the third roller group each include a pressure roller shaft, two pressure rollers sleeved on the pressure roller shaft, an idler roller shaft, and two idler rollers sleeved on the idler roller shaft; the output end of the drive assembly is connected to the pressure roller shaft and the idler roller shaft for transmission.

[0011] A first pressing gap is formed between the pressure roller and the idler roller in the first roller group; a second pressing gap is formed between the pressure roller and the idler roller in the second roller group; and a third pressing gap is formed between the pressure roller and the idler roller in the third roller group. When passing through the first pressing gap, the second pressing gap, and the third pressing gap, the included angle between the edge of the copper strip and the main body of the copper strip is an obtuse angle, and the angle decreases sequentially along the copper strip conveying direction.

[0012] As a further limitation of this utility model: the angle formed between the edge of the copper strip and the main body of the copper strip is 170° when passing through the first pressing gap; the angle formed between the edge of the copper strip and the main body of the copper strip is 140° when passing through the second pressing gap; and the angle formed between the edge of the copper strip and the main body of the copper strip is 110° when passing through the third pressing gap.

[0013] As another limitation of this utility model: the second roller pressing assembly includes a fourth roller group, a fifth roller group, and a sixth roller group arranged sequentially along the copper strip conveying direction; the fourth roller group, the fifth roller group, and the sixth roller group each include a pressure roller shaft, two pressure rollers sleeved on the pressure roller shaft, an idler roller shaft, and two idler rollers sleeved on the idler roller shaft; the output end of the drive assembly is connected to the pressure roller shaft and the idler roller shaft for transmission.

[0014] The fourth pressing gap is formed between the pressure roller and the idler roller in the fourth roller group, the fifth pressing gap is formed between the pressure roller and the idler roller in the fifth roller group, and the sixth pressing gap is formed between the pressure roller and the idler roller in the sixth roller group. When passing through the fourth pressing gap, the fifth pressing gap, and the sixth pressing gap, the included angle formed between the edge of the copper strip and the body of the copper strip is an acute angle, and the angle decreases sequentially along the copper strip conveying direction.

[0015] As a further limitation of this utility model: the angle formed between the edge of the copper strip and the main body of the copper strip is 75° when passing through the fourth pressing gap; the angle formed between the edge of the copper strip and the main body of the copper strip is 50° when passing through the fifth pressing gap; and the angle formed between the edge of the copper strip and the main body of the copper strip is 20° when passing through the sixth pressing gap.

[0016] As another limitation of this utility model: one end of the pressure roller shaft and the idler roller shaft passes through the frame, a first gear is fixedly provided at the through end of the pressure roller shaft, and a second gear that meshes with the first gear is fixedly provided at the through end of the idler roller shaft corresponding to the pressure roller shaft, and the output end of the drive assembly is connected to the second gear for transmission.

[0017] As a further limitation of this utility model: the drive assembly includes a power component and a transmission component;

[0018] The power components include the motor;

[0019] The transmission components include a pulley, a first synchronous belt, a double gear, and a second synchronous belt. The pulley is fixed on the motor output shaft. There are multiple double gears, one of which is fixed at the through end of each roller shaft. The first synchronous belt is sleeved on the pulley and the driving gear of one of the double gears. The second synchronous belt is sleeved on the driven gears of the multiple double gears. The second synchronous belt and the multiple driven gears are all meshed transmissions.

[0020] As a further limitation of this utility model: a support plate is provided upstream of the first roller pressing assembly and downstream of the third roller pressing assembly. The support plate is fixed on the frame, and the upper surface of the support plate is at the same height as the pressing gap.

[0021] By adopting the above technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows:

[0022] This utility model includes a frame, a roller assembly rotatably mounted on the frame, and a drive assembly. The roller assembly includes a first roller pressing assembly, a second roller pressing assembly, and a third roller pressing assembly arranged sequentially along the copper strip conveying direction; pressing gaps are formed between the pressure roller and the idler roller in the first roller pressing assembly, between the pressure roller and the idler roller in the second roller pressing assembly, and between the pressure roller and the idler roller in the third roller pressing assembly. During implementation, the copper strip sequentially passes through the pressing gaps in the first, second, and third roller pressing assemblies. When passing through the pressing gap in the first roller pressing assembly, the edge of the copper strip forms an outward fold with an obtuse angle to the main body of the copper strip; when passing through the pressing gap in the second roller pressing assembly, the edge of the copper strip forms an inward fold with an acute angle to the main body of the copper strip; and when passing through the pressing gap in the third roller pressing assembly, the edge of the copper strip is fully pressed against the main body of the copper strip. Finally, the folded copper strip is output from this device. This device achieves automated, progressive folding and flattening, improving the efficiency of copper strip folding, reducing the labor intensity of workers, and meeting the needs of large-scale production.

[0023] In summary, this utility model can improve the efficiency of copper strip folding, reduce the labor intensity of workers, and meet the needs of large-scale production; this utility model is applicable to the copper strip production industry and is used to realize copper strip folding. Attached Figure Description

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0026] Figure 2 This is an exploded view of an embodiment of the present utility model;

[0027] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle;

[0028] Figure 4 This is a front view schematic diagram of the first roller assembly;

[0029] Figure 5 This is a schematic diagram showing the angle between the edge of the copper strip and the main body of the copper strip after it has been rolled by the first set of rollers.

[0030] Figure 6 This is a front view schematic diagram of the second roller assembly;

[0031] Figure 7 This is a schematic diagram showing the angle between the edge of the copper strip and the main body of the copper strip after it has been rolled by the second set of rollers.

[0032] Figure 8 This is a front view schematic diagram of the third roller assembly;

[0033] Figure 9 This is a schematic diagram showing the angle between the edge of the copper strip and the main body of the copper strip after it has been rolled by the third roller group.

[0034] Figure 10 This is a front view schematic diagram of the fourth roller assembly;

[0035] Figure 11 This is a schematic diagram showing the angle between the edge of the copper strip and the main body of the copper strip after it has been rolled by the fourth roller group.

[0036] Figure 12 This is a front view schematic diagram of the fifth roller group;

[0037] Figure 13 This is a schematic diagram showing the angle between the edge of the copper strip and the main body of the copper strip after it has been rolled by the fifth roller group.

[0038] Figure 14 This is a front view schematic diagram of the sixth roller assembly;

[0039] Figure 15 This is a schematic diagram showing the angle between the edge of the copper strip and the main body of the copper strip after it has been rolled by the sixth roller group.

[0040] Figure 16 This is a front view schematic diagram of the third roller pressing assembly;

[0041] Figure 17 This is a schematic diagram showing the angle between the edge of the copper strip and the main body of the copper strip after it has been rolled by the third rolling assembly.

[0042] In the diagram: 1-Frame, 101-First side plate, 102-Second side plate, 2-First roller pressing assembly, 3-Second roller pressing assembly, 4-Third roller pressing assembly, 5-Pressure roller, 6-Pressure roller shaft, 7-Support roller, 8-Support roller shaft, 9-First roller group, 10-Second roller group, 11-Third roller group, 12-Fourth roller group, 13-Fifth roller group, 14-Sixth roller group, 15-Control box, 16-Dustproof housing, 17-First pressing gap, 18- Second pressing gap, 19-Third pressing gap, 20-Fourth pressing gap, 21-Fifth pressing gap, 22-Sixth pressing gap, 23-Seventh pressing gap, 24-Copper strip edge, 25-Copper strip body, 26-Support plate, 27-Motor, 28-First gear, 29-Second gear, 30-Pulley, 31-First synchronous belt, 32-Second synchronous belt, 33-Double gear, 331-Drive gear, 332-Driven gear, 34-Horizontal plate. Detailed Implementation

[0043] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and do not constitute a limitation thereof.

[0044] The directional terms or positional relationships such as "left," "right," "front," and "back" used in the embodiments are based on the drawings in this utility model specification. Figure 1 The orientation relationships are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component must have a specific orientation, or that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the content protected by this utility model.

[0045] like Figures 1 to 17As shown, this embodiment includes a frame 1, a roller assembly rotatably mounted on the frame 1, and a drive assembly. The roller assembly includes a first pressing assembly 2, a second pressing assembly 3, and a third pressing assembly 4 arranged sequentially along the copper strip conveying direction. In this embodiment, the copper strip is conveyed from front to back. The output end of the drive assembly is connected to the roller assembly. Under the drive of the drive assembly, the first pressing assembly 2, the second pressing assembly 3, and the third pressing assembly 4 roll and press the copper strip to finally complete the edge folding.

[0046] 1. First roller pressing assembly 2;

[0047] like Figure 1 As shown, the first roller pressing assembly 2 includes a pressure roller shaft 6, a pressure roller 5 sleeved on the pressure roller shaft 6, an idler roller shaft 8, and an idler roller 7 sleeved on the idler roller shaft 8. The pressure roller shaft 6 has two pressure rollers 5, and the idler roller shaft 8 has two idler rollers 7. One pressure roller 5 is located at each of the left and right ends of the pressure roller shaft 6, and one idler roller 7 is located at each of the left and right ends of the idler roller shaft 8. The axes of both the pressure roller shaft 6 and the idler roller shaft 8 are perpendicular to the copper strip conveying direction. The ends of both the pressure roller shaft 6 and the idler roller shaft 8 are rotatably connected to the frame 1 via bearings. The rotatable connection methods of the pressure roller shaft 6 and the idler roller shaft 8 to the frame 1, as well as the fixing of the pressure roller 5 on the pressure roller shaft 6 and the idler roller 7 on the idler roller shaft 8, are all existing technologies.

[0048] The pressure roller 5 and the support roller 7 are arranged vertically and vertically, forming a pressing gap between them for the copper strip to pass through. Through the pressing gap in the first roller pressing assembly 2, an outwardly flared edge with an obtuse angle is formed between the edge 24 of the copper strip and the main body 25 of the copper strip. Specifically, as shown... Figure 1 , 2 As shown, the first roller pressing assembly 2 includes a first roller group 9, a second roller group 10, and a third roller group 11 arranged sequentially along the copper strip conveying direction; each of the first roller group 9, the second roller group 10, and the third roller group 11 includes a pressure roller shaft 6, two pressure rollers 5 sleeved on the pressure roller shaft 6, an idler roller shaft 8, and two idler rollers 7 sleeved on the idler roller shaft 8. Figure 2 Only one pressure roller 5 in the first roller group 9 is shown for illustration. The pressure roller 5, idler roller 7, pressure roller shaft 6, and idler roller shaft 8 are not described in detail here. The output end of the drive assembly is connected to the pressure roller shaft 6 and idler roller shaft 8 for driving the pressure roller shaft 6 and idler roller shaft 8 in the first roller group 9, the second roller group 10, and the third roller group 11 to rotate.

[0049] A first pressing gap 17 is formed between the pressure roller 5 and the support roller 7 in the first roller group 9. See Figure 4 A second pressing gap 18 is formed between the pressure roller 5 and the support roller 7 in the second roller group 10, see [reference]. Figure 6 A third pressing gap 19 is formed between the pressure roller 5 and the support roller 7 in the third roller group 11, see [reference]. Figure 8When passing through the first pressing gap 17, the second pressing gap 18, and the third pressing gap 19, the included angles formed between the copper strip edge 24 and the copper strip body 25 are all obtuse angles, and the angles decrease sequentially along the copper strip conveying direction. In this embodiment, the included angle α1 formed between the copper strip edge 24 and the copper strip body 25 when passing through the first pressing gap 17 is 170°. See [reference needed]. Figure 4 , Figure 5 When the second pressing gap 18 has passed, the included angle α2 formed between the copper strip edge 24 and the copper strip body 25 is 140°. (See [reference]). Figure 6 , Figure 7 When the third pressing gap 19 has passed, the included angle α3 formed between the copper strip edge 24 and the copper strip body 25 is 110°. See [reference needed]. Figure 8 , Figure 9 In this embodiment, by changing the roller shape of the pressure roller 5 and the support roller 7, the folding angle of the copper strip when passing through the first pressing gap 17, the second pressing gap 18, and the third pressing gap 19 is gradually transitioned, that is, from 170° to 140° and then to 110°. Compared with folding the copper strip to 110° in one go, this embodiment can ensure that the copper strip folding edge is flatter and that the copper strip is not damaged.

[0050] II. Second Roller Press Assembly 3;

[0051] The second roller pressing assembly 3 includes a pressure roller shaft 6, a pressure roller 5 sleeved on the pressure roller shaft 6, an idler roller shaft 8, and an idler roller 7 sleeved on the idler roller shaft 8. This part is similar to the first roller pressing assembly 2. The difference between the second and third roller pressing assemblies is that the pressing gap formed between the pressure roller 5 and the idler roller 7 in the second roller pressing assembly 3 creates an inwardly tapered edge with an acute angle between the copper strip edge 24 and the copper strip body 25.

[0052] Specifically, such as Figure 1 , 2 As shown, the second roller pressing assembly 3 includes a fourth roller group 12, a fifth roller group 13, and a sixth roller group 14 arranged sequentially along the copper strip conveying direction. Each of the fourth roller group 12, fifth roller group 13, and sixth roller group 14 includes a pressure roller shaft 6, two pressure rollers 5 sleeved on the pressure roller shaft 6, an idler roller shaft 8, and two idler rollers 7 sleeved on the idler roller shaft 8. Details regarding the pressure rollers 5, idler rollers 7, pressure roller shaft 6, and idler roller shaft 8 are not described here. The output ends of the drive assembly are all connected to the pressure roller shaft 6 and idler roller shaft 8 for driving the pressure roller shaft 6 and idler roller shaft 8 in the fourth roller group 12, fifth roller group 13, and sixth roller group 14 to rotate.

[0053] A fourth pressing gap 20 is formed between the pressure roller 5 and the support roller 7 in the fourth roller group 12, see [link / reference]. Figure 10 A fifth pressing gap 21 is formed between the pressure roller 5 and the support roller 7 in the fifth roller group 13, see [reference]. Figure 12A sixth pressing gap 22 is formed between the pressure roller 5 and the support roller 7 in the sixth roller group 14, see [reference]. Figure 14 When passing through the fourth pressing gap 20, the fifth pressing gap 21, and the sixth pressing gap 22, the included angles formed between the copper strip edge 24 and the copper strip body 25 are all acute angles, and the angles decrease sequentially along the copper strip conveying direction. In this embodiment, the included angle α4 formed between the copper strip edge 24 and the copper strip body 25 when passing through the fourth pressing gap 20 is 75°. See [reference needed]. Figure 10 , Figure 11 When the fifth pressing gap 21 has passed, the included angle α5 between the edge 24 of the copper strip and the main body 25 of the copper strip is 50°. See [reference needed]. Figure 12 , Figure 13 When the sixth pressing gap 22 has passed, the included angle α6 formed between the copper strip edge 24 and the copper strip body 25 is 20°. See [reference needed]. Figure 14 , Figure 15 In this embodiment, by changing the shape of the pressure roller 5 and the support roller 7, the folding angle of the copper strip when passing through the fourth pressing gap 20, the fifth pressing gap 21, and the sixth pressing gap 22 is gradually transitioned, that is, from 75° to 50° and then to 20°. Compared with folding the copper strip to 20° in one go, this embodiment can ensure that the copper strip folding edge is flatter and that the copper strip is not damaged.

[0054] III. Third Roller Press Assembly 4;

[0055] like Figure 1 , 2 As shown, the third roller pressing assembly 4 includes a pressure roller shaft 6, a pressure roller 5 sleeved on the pressure roller shaft 6, an idler roller shaft 8, and an idler roller 7 sleeved on the idler roller shaft 8. This part is similar to the first roller pressing assembly 2. The difference between the third roller pressing assembly 4 and the first roller pressing assembly 2 is that the pressing gap formed between the pressure roller 5 and the idler roller 7 in the third roller pressing assembly 4 allows the copper strip edge 24 to be completely pressed against the copper strip body 25.

[0056] In this embodiment, the third roller pressing assembly 4 has only one pressure roller shaft 6 and one idler roller shaft 8. The output end of the drive assembly is also connected to the pressure roller shaft 6 and the idler roller shaft 8 for driving the pressure roller shaft 6 and the idler roller shaft 8 to rotate.

[0057] like Figure 16 As shown, a seventh pressing gap 23 is formed between the pressure roller 5 and the support roller 7 in the third roller pressing assembly 4. When the copper strip passes through the seventh pressing gap 23, the included angle between the edge 24 of the copper strip and the body 25 of the copper strip is 0°. (See [reference]) Figure 17 This means that the edges are fully pressed together, at which point the folding is complete.

[0058] When the copper strip is folded in this embodiment, the included angle between the edge 24 of the copper strip and the main body 25 of the copper strip successively changes from 170°, 140°, 110°, 75°, 50°, 20° to 0°. The advantage of this progressive folding angle is that for copper strips used in transformer coil electrostatic shields, which are hundreds of meters long, it is difficult to directly fold the edge 24 of the copper strip to 0°. The progressive folding method makes it easier to succeed. In addition, the progressive folding allows the edge 24 of the copper strip to gradually transition to 0°, resulting in a smoother edge 24 after folding.

[0059] In this embodiment, by adjusting the shape of the pressure roller 5 and the idler roller 7, the included angle between the edge 24 of the copper strip and the main body 25 of the copper strip is successively changed from 170°, 140°, 110°, 75°, 50°, 20° to 0°. This roller shape is designed to both meet the requirements of progressive edge bending and facilitate the processing of the pressure roller 5 and the idler roller 7.

[0060] In this embodiment, the first roller pressing assembly 2 and the second roller pressing assembly 3 each include three sets of rollers. This is for illustrative purposes only and can be adjusted as needed in actual applications. For example, the first roller pressing assembly 2 can include only one set of rollers, and the angle between the edge 24 of the copper strip formed after passing through the pressing gap in the first roller pressing assembly 2 and the copper strip body 25 can be any angle between 110° and 170°. The second roller pressing assembly 3 can also include only one set of rollers, and the angle between the edge 24 of the copper strip formed after passing through the pressing gap in the second roller pressing assembly 3 and the copper strip body 25 can be any angle between 20° and 75°. This method can also achieve the change of the copper strip edge 24 from an obtuse angle to an acute angle and then back to 0°.

[0061] IV. Frame 1. Drive Components;

[0062] like Figure 1 As shown, a first side plate 101 located on the left and a second side plate 102 located on the right are fixed on the frame 1. The left ends of the pressure roller shaft 6 and the idler roller shaft 8 pass through the first side plate 101 on the frame 1, and the pressure roller shaft 6 and the idler roller shaft 8 are rotatably connected to the first side plate 101 through the through-hole via bearings. The right ends of the pressure roller shaft 6 and the idler roller shaft 8 are each rotatably connected to the second side plate 102 via bearings. The method of achieving rotatable connection via bearings is existing technology.

[0063] like Figure 2 , 3 As shown, a first gear 28 is fixedly installed at the through end of the pressure roller shaft 6, and a second gear 29 that meshes with the first gear 28 is fixedly installed at the through end of the idler roller shaft 8 corresponding to the upper and lower pressure roller shaft 6. Here, the through end refers to the left end of the pressure roller shaft 6 and the idler roller shaft 8. In this embodiment, there are seven pressure roller shafts 6 and seven idler roller shafts 8. A first gear 28 is fixedly installed at the through end of each pressure roller shaft 6, and a second gear 29 is fixedly installed at the through end of each idler roller shaft 8.

[0064] The output end of the drive assembly is connected to the second gear 29 for transmission. Specifically, the drive assembly includes a power component and a transmission component.

[0065] The power components include motor 27, such as Figure 1 As shown, a horizontal plate 34 is fixedly installed at the bottom of the frame 1, and the motor 27 is placed on the horizontal plate 34. A control box 15 is also fixedly installed on the frame 1. The control box 15 is electrically connected to the motor 27 to control the start of the motor 27. The structure of the control box 15 and its control relationship with the motor 27 are existing technologies.

[0066] like Figure 2 , 3 As shown, the transmission components include a pulley 30, a first synchronous belt 31, a double gear 33, and a second synchronous belt 32. The pulley 30 is fixed to the output shaft of the motor 27. Multiple double gears 33 are provided, one fixed to the through end of each roller shaft 8. In this embodiment, there are seven double gears 33. The first synchronous belt 31 is fitted onto the pulley 30 and the drive gear 331 of one of the double gears 33. In this embodiment, the first synchronous belt 31 is fitted onto the pulley 30 and the drive gear 331 of the first roller group 9 (i.e., the foremost double gear 33). The second synchronous belt 32 is fitted onto the driven gears 332 of the seven double gears 33. The second synchronous belt 32 and the seven driven gears 332 are all meshing transmissions.

[0067] When the motor 27 is working, the pulley 30 rotates with the output shaft of the motor 27. Under the action of the first synchronous belt 31, the double gear 33, the idler roller shaft 8, and the second gear 29 on the first roller group 9 rotate together. Under the meshing relationship, the first gear 28 and the pressure roller shaft 6 on the first roller group 9 also rotate. At the same time, under the action of the second synchronous belt 32, the driven gear 332 in the double gear 33 on the first roller group 9 rotates, which will drive all the driven gears 332 in the second roller group 10 to the third roller pressing assembly 4 to rotate, thereby causing the idler roller shaft 8 in the second roller group 10 to the third roller pressing assembly 4 to rotate. Under the meshing transmission, all the pressure roller shafts 6 in the second roller group 10 to the third roller pressing assembly 4 also rotate.

[0068] To improve this embodiment, such as Figure 2 As shown, a dustproof shell 16 is provided on the left side of the frame 1 at the positions corresponding to the pulley 30, double gear 33, first gear 28, and second gear 29, which is fixedly connected to the frame 1. This not only serves to prevent dust but also improves the aesthetics.

[0069] V. Pallet 26;

[0070] like Figure 1 , 2As shown, along the copper strip transport direction, support plates 26 are provided upstream (i.e., front end) of the first roller pressing assembly 2 and downstream (i.e., rear end) of the third roller pressing assembly 4. The support plates 26 are fixed on the frame 1. The upper surface of the support plates 26 is at the same height as the first pressing gap 17 and the seventh pressing gap 23. The support plates 26 support the copper strip before entering the first roller group 9 and the copper strip output from the third roller pressing assembly 4, so that the copper strip passes through a horizontal path before entering the device and when outputting from the device, preventing direct fall and damage to the copper strip.

[0071] In this embodiment, the motor 27 is started, and all the pressure roller shafts 6 and support roller shafts 8 in the device rotate, initiating the rolling process. The copper strip is conveyed from front to back. The copper strip first enters the first roller group 9 between the pressure roller 5 and support roller 7 via the support plate 26. After rolling, the included angle α1 formed between the edge 24 and the main body 25 of the copper strip is 170°. Then it enters the second roller group 10 for rolling, and after rolling, the included angle α2 formed between the edge 24 and the main body 25 of the copper strip is 140°. Then it enters the third roller group 11 for rolling, and after rolling, the included angle α3 formed between the edge 24 and the main body 25 of the copper strip is 110°. Finally, it enters the fourth roller group 12 for rolling. After rolling, the angle α4 formed between the edge 24 and the main body 25 of the copper strip is 75°; it then enters the fifth roller group 13 for further rolling, after which the angle α5 formed between the edge 24 and the main body 25 is 50°; it then enters the sixth roller group 14 for further rolling, after which the angle α6 formed between the edge 24 and the main body 25 is 20°; finally, it enters the third rolling assembly 4 for further rolling, after which the angle between the edge 24 and the main body 25 is 0°, completing the edge folding. The folded copper strip is then output from the device via the rear support plate 26.

[0072] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A copper strip folding mechanism, characterized in that, It includes a frame, a roller assembly rotatably mounted on the frame, and a drive assembly, with the output end of the drive assembly connected to the roller assembly; The roller assembly includes a first roller pressing assembly, a second roller pressing assembly, and a third roller pressing assembly arranged sequentially along the copper strip conveying direction. Each of the first, second, and third roller pressing assemblies includes a pressure roller shaft, a pressure roller sleeved on the pressure roller shaft, an idler roller shaft, and an idler roller sleeved on the idler roller shaft. The axes of the pressure roller shaft and the idler roller shaft are perpendicular to the copper strip conveying direction. The pressure roller and the idler roller are arranged vertically and vertically, forming a pressing gap between them for the copper strip to pass through. There are two pressure rollers and two idler rollers, with one pressure roller at each end of the pressure roller shaft and one idler roller at each end of the idler roller shaft. The output end of the drive assembly is connected to the pressure roller shaft and the idler roller shaft for transmission. The pressing gap in the first roller pressing assembly forms an outward folded edge with an obtuse angle between the copper strip edge and the copper strip body; the pressing gap in the second roller pressing assembly forms an inward folded edge with an acute angle between the copper strip edge and the copper strip body; and the pressing gap in the third roller pressing assembly completely presses the copper strip edge and the copper strip body together.

2. The copper strip folding mechanism according to claim 1, characterized in that, The angle between the edge of the copper strip formed after passing through the pressing gap in the first roller pressing assembly and the copper strip body is any angle between 110° and 170°; the angle between the edge of the copper strip formed after passing through the pressing gap in the second roller pressing assembly and the copper strip body is any angle between 20° and 75°; and the angle between the edge of the copper strip formed after passing through the pressing gap in the third roller pressing assembly and the copper strip body is 0°.

3. A copper strip folding mechanism according to claim 1 or 2, characterized in that, The first roller pressing assembly includes a first roller group, a second roller group, and a third roller group arranged sequentially along the copper strip conveying direction; each of the first roller group, the second roller group, and the third roller group includes a pressure roller shaft, two pressure rollers sleeved on the pressure roller shaft, an idler roller shaft, and two idler rollers sleeved on the idler roller shaft; the output end of the drive assembly is connected to the pressure roller shaft and the idler roller shaft for transmission. A first pressing gap is formed between the pressure roller and the idler roller in the first roller group; a second pressing gap is formed between the pressure roller and the idler roller in the second roller group; and a third pressing gap is formed between the pressure roller and the idler roller in the third roller group. When passing through the first pressing gap, the second pressing gap, and the third pressing gap, the included angle between the edge of the copper strip and the main body of the copper strip is an obtuse angle, and the angle decreases sequentially along the copper strip conveying direction.

4. The copper strip folding mechanism according to claim 3, characterized in that, When passing through the first pressing gap, the angle between the edge of the copper strip and the main body of the copper strip is 170°; when passing through the second pressing gap, the angle between the edge of the copper strip and the main body of the copper strip is 140°; when passing through the third pressing gap, the angle between the edge of the copper strip and the main body of the copper strip is 110°.

5. A copper strip folding mechanism according to any one of claims 1, 2, and 4, characterized in that, The second roller pressing assembly includes a fourth roller group, a fifth roller group, and a sixth roller group arranged sequentially along the copper strip conveying direction; each of the fourth roller group, the fifth roller group, and the sixth roller group includes a pressure roller shaft, two pressure rollers sleeved on the pressure roller shaft, an idler roller shaft, and two idler rollers sleeved on the idler roller shaft; the output end of the drive assembly is connected to the pressure roller shaft and the idler roller shaft for transmission. The fourth pressing gap is formed between the pressure roller and the idler roller in the fourth roller group, the fifth pressing gap is formed between the pressure roller and the idler roller in the fifth roller group, and the sixth pressing gap is formed between the pressure roller and the idler roller in the sixth roller group. When passing through the fourth pressing gap, the fifth pressing gap, and the sixth pressing gap, the included angle formed between the edge of the copper strip and the body of the copper strip is an acute angle, and the angle decreases sequentially along the copper strip conveying direction.

6. The copper strip folding mechanism according to claim 5, characterized in that, When passing through the fourth pressing gap, the angle between the edge of the copper strip and the main body of the copper strip is 75°; when passing through the fifth pressing gap, the angle between the edge of the copper strip and the main body of the copper strip is 50°; when passing through the sixth pressing gap, the angle between the edge of the copper strip and the main body of the copper strip is 20°.

7. A copper strip folding mechanism according to any one of claims 1, 2, 4, and 6, characterized in that, One end of the pressure roller shaft and the idler roller shaft passes through the frame. A first gear is fixed at the through end of the pressure roller shaft, and a second gear that meshes with the first gear is fixed at the through end of the idler roller shaft corresponding to the pressure roller shaft. The output end of the drive assembly is connected to the second gear for transmission.

8. A copper strip folding mechanism according to claim 7, characterized in that, Drive components include power components and transmission components; The power components include the motor; The transmission components include a pulley, a first synchronous belt, a double gear, and a second synchronous belt. The pulley is fixed on the motor output shaft. There are multiple double gears, one of which is fixed at the through end of each roller shaft. The first synchronous belt is sleeved on the pulley and the driving gear of one of the double gears. The second synchronous belt is sleeved on the driven gears of the multiple double gears. The second synchronous belt and the multiple driven gears are all meshed transmissions.

9. A copper strip folding mechanism according to claim 8, characterized in that, A support plate is provided upstream of the first roller pressing assembly and downstream of the third roller pressing assembly. The support plate is fixed on the frame, and the upper surface of the support plate is at the same height as the pressing gap.

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