Wire tensioning structure
By designing the tensioning main board and back plate structure, and combining components such as magnets and springs, the problems of difficult wire threading and untimely slack feedback in the wire tensioning structure were solved, thus achieving stable tensioning and smooth wire exit of the welding wire.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOLUNGWIN AUTOMATIC EQUIP CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-06-05
Smart Images
Figure CN224322479U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of silicon wafer string bonding, and in particular to a wire tensioning structure. Background Technology
[0002] Photovoltaic silicon wafers are the core and most valuable component of a solar power generation system. Their function is to convert solar energy into electrical energy, which is then stored in batteries or used directly as a power source. In BC batteries (back-contact batteries, which can be combined with various circuits), a tensioning structure is needed to keep the welding wire taut during its lead-out process. Conventional tensioning structures make wire threading difficult and fail to provide timely feedback on the spool's position when the wire is slack. Utility Model Content
[0003] One objective of this utility model is to provide a welding wire tensioning structure that makes it easier to thread the wire at the upper end, while the lower end provides elastic restraint to the moving wheel bracket to maintain the tension of the welding wire.
[0004] To achieve this objective, the present invention adopts the following technical solution:
[0005] A wire tensioning structure includes a tensioning main plate and a tensioning rear plate. The tensioning rear plate is fixed to one side of the upper end of the tensioning main plate. Fixed wheel brackets are installed at both the front and rear ends of the tensioning rear plate. A pressure cap is hinged to the rear side of the fixed wheel bracket. A tensioning wheel and a tensioning guide rod are installed on the fixed wheel bracket. The pressure cap covers the tensioning guide rod. Magnets are installed at the lower end of the tensioning guide rod and the front end of the fixed wheel bracket. The two magnets are magnetically connected to each other. A guide post is fixed vertically on the tensioning main plate. A limit strip is locked at the upper end of the guide post. A moving wheel bracket is slidably connected to the guide post. A plurality of tensioning moving wheels are distributed on the moving wheel bracket. A tensioning spring is provided at the upper end of the moving wheel bracket and is sleeved on the guide post.
[0006] As a preferred technical solution, a slide rail is fixed on the tensioning main board along the vertical direction, and a slider is fixed on the moving wheel bracket, the slider sliding on the slide rail.
[0007] As a preferred technical solution, the dimension of one side of the tensioning wheel is larger than the dimension of the other side of the tensioning wheel.
[0008] As a preferred technical solution, a sensing plate is fixed on the moving wheel bracket, and a photoelectric sensor is fixed at the lower end of the tensioning main board. The sensing plate is connected to the photoelectric sensor for signal transmission.
[0009] As a preferred technical solution, a handle is fixed to the side of the tensioning wheel, and the handle protrudes beyond the tensioning wheel.
[0010] As a preferred technical solution, a hinge is fixed on the tensioning plate, and the rear end of the pressure cap is connected to the hinge.
[0011] As a preferred technical solution, a wheel axle is fixed on the tensioning plate, and the tensioning wheel is rotatably connected to the wheel axle.
[0012] As a preferred technical solution, a base plate is fixed to the lower end of the tensioning main board, and a buffer adhesive is fixed to the base plate, with the sensing sheet passing through the base plate.
[0013] The beneficial effects of this utility model are as follows: It provides a welding wire tensioning structure in which the moving wheel bracket controls the tension of the welding wire, the difference in size between the two sides of the tensioning moving wheel makes wire insertion more convenient, the handle can lift the tensioning moving wheel to insert the wire, the welding wire is tightened under the action of the tensioning spring, the sensor senses the position of the tensioning moving wheel and controls the wire output, and the top is fastened with a magnet, making wire threading convenient. Attached Figure Description
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0015] Figure 1 This is a schematic diagram of the overall structure of a welding wire tensioning structure as described in the embodiment;
[0016] Figure 2 This is a schematic diagram of the upper structure of a welding wire tensioning structure as described in the embodiment;
[0017] Figure 3 This is a schematic diagram of the lower end structure of a welding wire tensioning structure as described in the embodiment;
[0018] Figure 4 This is a front structural diagram of the tensioning plate described in the embodiment;
[0019] Figure 5 This is a structural diagram of the rear side of the tensioning plate as described in the embodiment.
[0020] Figures 1 to 5 middle:
[0021] 1. Tensioning main board; 2. Tensioning rear plate; 3. Fixed wheel bracket; 4. Pressure cover; 5. Tensioning fixed wheel; 6. Tensioning guide rod; 7. Magnet; 8. Guide post; 9. Limiting strip; 10. Moving wheel bracket; 11. Tensioning moving wheel; 12. Tensioning spring; 13. Slide rail; 14. Slider; 15. Sensor plate; 16. Photoelectric sensor; 17. Handle; 18. Hinge; 19. Axle; 20. Base plate; 21. Buffer rubber. Detailed Implementation
[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0023] like Figures 1 to 5 As shown in this embodiment, a wire tensioning structure includes a tensioning main plate 1 and a tensioning rear plate 2. The tensioning rear plate 2 is fixed to one side of the upper end of the tensioning main plate 1. Fixed wheel brackets 3 are installed at both the front and rear ends of the tensioning rear plate 2. A pressure cover 4 is hinged to the rear side of the fixed wheel bracket 3. Tensioning fixed wheels 5 and tensioning guide rods 6 are installed on the fixed wheel bracket 3. The pressure cover 4 covers the tensioning guide rods 6. Magnets 7 are installed at the lower end of the tensioning guide rod 6 and at the front end of the fixed wheel bracket 3. The two magnets 7 are magnetically connected to each other. A guide post 8 is fixed on the tensioning main plate 1 along the vertical direction. A limit plate 9 is locked at the upper end of the guide post 8. A moving wheel bracket 10 is slidably connected to the guide post 8. A plurality of tensioning moving wheels 11 are distributed on the moving wheel bracket 10. A tensioning spring 12 is provided at the upper end of the moving wheel bracket 10. The tensioning spring 12 is sleeved on the guide post 8.
[0024] The welding wire passes under the pressure cover 4 on one side of the tensioning plate 2, enters the tensioning fixed wheel 5 through the guidance of the tensioning guide rod 6, then passes down through the lower tensioning moving wheel 11, and then returns to the tensioning fixed wheel 5 on the other side of the tensioning plate 2. Finally, it is brought out of the tensioning main plate 1 from the tensioning guide rod 6 under the pressure cover 4.
[0025] When threading the wire, open the pressure cap 4 that is attracted to each other by the magnet 7, and place the welding wire between the wire guide rods 6. Then close the pressure cap 4 to fix it magnetically. Under tension, the welding wire pulls the moving wheel bracket 10 where the wire moving wheel 11 is located upward. After rising along the guide post 8, the wire spring 12 is compressed under the restriction of the limiting plate 9, which restricts the position of the moving wheel bracket 10. In addition, the height of the limiting plate 9 can be adjusted manually.
[0026] A slide rail 13 is fixed vertically on the main board 1 of the tension line, and a slider 14 is fixed on the moving wheel bracket 10. The slider 14 slides on the slide rail 13. When moving up and down along the guide post 8, the moving wheel bracket 10 reduces friction by sliding the slider 14 and the slide rail 13.
[0027] The size of one side of the tensioning roller 11 is larger than the size of the other side. The welding wire is put into the tensioning roller 11 from the smaller side and its position is restricted by the larger side. Compared with tensioning rollers 11 with the same size on both sides, the wire is put in faster and more conveniently.
[0028] A sensor 15 is fixed on the moving wheel bracket 10, and a photoelectric sensor 16 is fixed at the lower end of the tensioning main board 1. The sensor 15 and the photoelectric sensor 16 are connected by signal. When the welding wire is slack, the moving wheel bracket 10 falls to the lowest point, and the sensor 15 and the photoelectric sensor 16 make signal contact, thereby controlling the welding wire feeding structure to immediately stop slackling the welding wire.
[0029] A handle 17 is fixed to the side of the tensioning roller 11. The handle 17 protrudes from the tensioning roller 11. When multiple tensioning rollers 11 pass the line, the tensioning roller 11 can be manually lifted by the handle 17 before passing the line.
[0030] A hinge 18 is fixed on the back plate 2 of the tensioning line. The rear end of the pressure cover 4 is connected to the hinge 18. Under the action of the hinge 18, the pressure cover 4 can be opened on the back plate 2 of the tensioning line. The opening and closing is convenient with magnetic attraction.
[0031] A wheel axle 19 is fixed on the tensioning plate 2. The tensioning fixed wheel 5 is rotatably connected to the wheel axle 19. A base plate 20 is fixed at the lower end of the tensioning main plate 1. A buffer rubber 21 is fixed on the base plate 20. The sensing plate 15 passes through the base plate 20. The welding wire passes through the tensioning fixed wheel 5 on the wheel axle 19. When the welding wire is slack, the moving wheel bracket 10 moves down and touches the buffer rubber 21 to prevent hard collision.
[0032] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles applied thereto. Within the scope of the technology disclosed in this utility model, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of this utility model.
Claims
1. A welding wire tensioning structure, characterized in that, The device includes a tensioning main board and a tensioning rear board. The tensioning rear board is fixed to one side of the upper end of the tensioning main board. Fixed wheel brackets are installed at both the front and rear ends of the tensioning rear board. A pressure cap is hinged to the rear side of the fixed wheel bracket. Tensioning fixed wheels and tensioning guide rods are installed on the fixed wheel brackets. The pressure cap covers the tensioning guide rod. Magnets are installed at the lower end of the tensioning guide rod and the front end of the fixed wheel bracket. The two magnets are magnetically connected to each other. A guide post is fixed vertically on the tensioning main board. A limit strip is locked at the upper end of the guide post. A moving wheel bracket is slidably connected to the guide post. Several tensioning moving wheels are distributed on the moving wheel bracket. A tensioning spring is provided at the upper end of the moving wheel bracket. The tensioning spring is sleeved on the guide post.
2. The welding wire tensioning structure according to claim 1, characterized in that, A slide rail is fixed on the tensioning main board along the vertical direction, and a slider is fixed on the moving wheel bracket, with the slider sliding on the slide rail.
3. The welding wire tensioning structure according to claim 1, characterized in that, The dimension of one side of the tensioning roller is larger than the dimension of the other side of the tensioning roller.
4. The welding wire tensioning structure according to claim 1, characterized in that, A sensing plate is fixed on the drive wheel bracket, and a photoelectric sensor is fixed at the lower end of the tensioning main board. The sensing plate is connected to the photoelectric sensor for signal transmission.
5. The welding wire tensioning structure according to claim 1, characterized in that, A handle is fixed to the side of the tensioning wheel, and the handle protrudes beyond the tensioning wheel.
6. The welding wire tensioning structure according to claim 1, characterized in that, A hinge is fixed to the rear plate of the tensioning wire, and the rear end of the pressure cap is connected to the hinge.
7. The welding wire tensioning structure according to claim 1, characterized in that, A wheel axle is fixed on the rear plate of the tensioning line, and the tensioning wheel is rotatably connected to the wheel axle.
8. The welding wire tensioning structure according to claim 4, characterized in that, A base plate is fixed to the lower end of the main board of the tension line, and a buffer adhesive is fixed on the base plate. The sensing sheet passes through the base plate.