Wire cutting structure

Abstract

The utility model discloses a welding wire cutting structure, including welding wire cutting support, welding wire cutting upper plate and welding wire cutting lower plate, welding wire cutting upper plate and welding wire cutting lower plate move to each other in vertical direction, and the lower end of welding wire cutting upper plate is connected with the upper cutter, and the upper end of welding wire cutting lower plate is connected with the lower cutter, and the lower end of welding wire cutting support is installed with welding wire bottom plate and welding wire pressure holding cylinder, and there are several movable cavity positions on welding wire pressure holding cylinder, and each movable cavity position is installed with the piston, and the upper end of piston is connected with the pressure holding spring, and there are several flat holes on welding wire bottom plate. The welding wire in the welding wire cutting structure passes through the flat hole, prevents the welding wire from turning over, and the upper cutter and the lower cutter cut the welding wire by approaching to the middle simultaneously, so that the position of the welding wire cutting does not appear burr and offset, and the cutting edge position of the lower cutter is set as arc, guides the welding wire to correct the position, and a plurality of pistons press the welding wire separately, so that a plurality of welding wires do not affect each other when cutting.

Description

Technical Field

[0001] This utility model relates to the technical field of silicon wafer string bonding, and in particular to a wire cutting 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 cells (back-contact cells, which can be combined with various circuits), after the welding wire is pulled from the wire feeder, it is cut to the required length. Existing cutting structures typically have only a single upper or lower cutter, which can easily cause burrs and vertical misalignment of the welding wire at the cutting point. The wire may also flip at a certain angle as it passes through the cutting structure. Furthermore, multiple welding wires simultaneously held by individual cylinder structures can affect each other. Utility Model Content

[0003] One objective of this invention is to provide a welding wire cutting structure that effectively prevents the welding wire from flipping during the process of passing through, independently presses a single welding wire for cutting, and avoids wire deviation and burrs during cutting.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A welding wire cutting structure includes a welding wire cutting support, an upper welding wire cutting plate, and a lower welding wire cutting plate. The upper welding wire cutting plate and the lower welding wire cutting plate move towards each other in the vertical direction. An upper cutting blade is connected to the lower end of the upper welding wire cutting plate, and a lower cutting blade is connected to the upper end of the lower welding wire cutting plate. A welding wire base plate and a welding wire holding cylinder are installed at the lower end of the welding wire cutting support. The welding wire holding cylinder has several movable cavities distributed on it, and a piston is installed in each movable cavity. A holding spring is connected to the upper end of the piston. Several flat holes are distributed on the welding wire base plate, and the lower end of the piston is located above the flat holes.

[0006] As a preferred technical solution, a welding wire cutting motor is installed at the upper end of the welding wire cutting support, and a welding wire cutting cam is connected to the drive end of the welding wire cutting motor. Welding wire cutting guide holes are provided at the upper middle part of the upper end of the upper welding wire cutting plate and the upper middle part of the lower welding wire cutting plate. The welding wire cutting cam is located inside the two welding wire cutting guide holes.

[0007] As a preferred technical solution, vertical slide rails are provided on both sides of the welding wire cutting support along the vertical direction, and vertical sliders are fixed on both the upper and lower welding wire cutting plates, with the vertical sliders sliding on the vertical slide rails.

[0008] As a preferred technical solution, the upper end of the lower cutter is provided with several slits, and the shape of the slits is an arc with the upper dimension being larger than the lower dimension.

[0009] As a preferred technical solution, the side of the welding wire holding cylinder is provided with several air pipe joints, and the movable cavity is provided with a ventilation area, with each air pipe joint independently connected to the ventilation area within the movable cavity.

[0010] As a preferred technical solution, a top component is fixed to the upper end of the movable cavity, and the upper end of the compression spring is located in the middle of the top component.

[0011] As a preferred technical solution, elastic clamps are installed on both sides of the upper plate of the welding wire cutting, the two sides of the upper cutter are locked on the elastic clamps, and the upper cutter is pressed on the lower cutter at an angle.

[0012] The beneficial effects of this utility model are as follows: It provides a welding wire cutting structure in which the welding wire passes through a flat hole to prevent the welding wire from flipping. The upper and lower cutters move towards the middle at the same time to cut the welding wire, so that there are no burrs or deviations at the cut position of the welding wire. Furthermore, the blade of the lower cutter is set to be arc-shaped to guide the welding wire to correct its position. Multiple sets of pistons individually press the welding wire, so that multiple welding wires do not affect each other during the cutting process. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a first structural schematic diagram of a welding wire cutting structure described in the embodiment;

[0015] Figure 2 This is a schematic diagram of the second structure of a welding wire cutting structure described in the embodiment;

[0016] Figure 3 This is a schematic diagram of the third structure of a welding wire cutting structure described in the embodiment;

[0017] Figure 4 This is a schematic diagram of the combined structure of the welding wire base plate and the welding wire holding cylinder described in the embodiment;

[0018] Figure 5 This is a partial cross-sectional view of the combination of the welding wire base plate and the welding wire holding cylinder described in the embodiment.

[0019] Figures 1 to 5 middle:

[0020] 1. Welding wire cutting support; 2. Welding wire cutting upper plate; 3. Welding wire cutting lower plate; 4. Upper cutter; 5. Lower cutter; 6. Welding wire base plate; 7. Welding wire holding cylinder; 8. Welding wire; 9. Piston; 10. Holding spring; 11. Flat hole; 12. Welding wire cutting motor; 13. Welding wire cutting cam; 14. Welding wire cutting guide hole; 15. Vertical slide rail; 16. Vertical slider; 17. Cutting edge; 18. Air pipe connector; 19. Ventilation area; 20. Top component; 21. Elastic clamp. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1 to 5 As shown in this embodiment, a welding wire cutting structure includes a welding wire cutting support 1, a welding wire cutting upper plate 2, and a welding wire cutting lower plate 3. The welding wire cutting upper plate 2 and the welding wire cutting lower plate 3 move towards each other in the vertical direction. An upper cutter 4 is connected to the lower end of the welding wire cutting upper plate 2, and a lower cutter 5 is connected to the upper end of the welding wire cutting lower plate 3. A welding wire base plate 6 and a welding wire holding cylinder 7 are installed at the lower end of the welding wire cutting support 1. A plurality of movable cavities are distributed on the welding wire holding cylinder 7, and a piston 9 is installed in each movable cavity. A holding spring 10 is connected to the upper end of the piston 9. A plurality of flat holes 11 are distributed on the welding wire base plate 6, and the lower end of the piston 9 is above the flat holes 11.

[0023] As the upper plate 2 of the welding wire cutting machine rises and the lower plate 3 of the welding wire cutting machine descends, the welding wire 8 passes through the welding wire cutting support 1 and through the flat hole 11 on the welding wire base plate 6. At this time, the piston 9 moves under the action of the holding spring 10. The single piston 9 stably presses the single welding wire 8 into the single flat hole 11. The upper plate 2 and the lower plate 3 of the welding wire cutting machine move towards each other and approach the welding wire 8 to cut it. Then, the welding wire holding cylinder 7 is vented, causing the piston 9 to retract the holding spring 10 upward, releasing the cut welding wire 8, which can then be placed in a suitable position.

[0024] A welding wire cutting motor 12 is installed at the upper end of the welding wire cutting support 1. A welding wire cutting cam 13 is connected to the drive end of the welding wire cutting motor 12. Welding wire cutting guide holes 14 are provided at the upper middle part of the upper end of the upper welding wire cutting plate 2 and the upper middle part of the upper welding wire cutting plate 3. The welding wire cutting cam 13 is located inside the two welding wire cutting guide holes 14. Vertical slide rails 15 are provided on both sides of the welding wire cutting support 1 along the vertical direction. Vertical sliders 16 are fixed on both the welding wire cutting upper plate 2 and the welding wire cutting lower plate 3. The vertical sliders 16 slide on the vertical slide rails 15.

[0025] When the welding wire cutting motor 12 controls the welding wire cutting cam 13 to rotate, the two welding wire cutting guide holes 14 control the movement of the upper welding wire cutting plate 2 and the lower welding wire cutting plate 3 respectively. Under the action of the vertical slider 16 and the vertical slide rail 15, they move towards the middle synchronously to cut the welding wire 8.

[0026] The upper end of the lower cutter 5 is provided with several cuts 17. The cuts 17 are arc-shaped with the upper dimension larger than the lower dimension. The arc-shaped structure allows the welding wire 8 to be positioned at the bottom when subjected to the force of the upper and lower cutters 5, ensuring that it will not deviate and making the cutting smoother.

[0027] The welding wire holding cylinder 7 has several air pipe joints 18 on its side, and a ventilation area 19 is provided in the movable cavity. Each air pipe joint 18 is independently connected to a ventilation area 19 in the movable cavity.

[0028] When the welding wire 8 needs to be fixed for cutting, the air pipe connector 18 is not connected to the air supply. The holding spring 10 presses the piston 9 down, so that the lower end of the piston 9 stabilizes the welding wire 8 in the flat hole 11. When the cutting is completed and the welding wire 8 needs to be sent away, the air pipe connector 18 is connected to the air supply. The air supply area 19 in the movable cavity increases after receiving air, forcing the piston 9 to move upward. The holding spring 10 squeezes, and at this time the lower end of the piston 9 is opened, so that the welding wire 8 can move.

[0029] A top component 20 is fixed at the upper end of the movable cavity, and the upper end of the compression spring 10 is located in the middle of the top component 20. Under the action of the top component 20, the compression spring 10 can expand and contract within the movable cavity.

[0030] Both sides of the upper plate 2 for welding wire cutting are equipped with elastic clamps 21. Both sides of the upper cutter 4 are locked on the elastic clamps 21, and the upper cutter 4 is pressed on the lower cutter 5 at an angle.

[0031] Under the action of the elastic clip 21, the lower end of the upper cutter 4 can be attached to the lower cutter 5 at an angle to maintain the sharpness during cutting.

[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 cutting structure, characterized in that, The device includes a welding wire cutting support, an upper welding wire cutting plate, and a lower welding wire cutting plate. The upper and lower welding wire cutting plates move towards each other in the vertical direction. An upper cutter is connected to the lower end of the upper welding wire cutting plate, and a lower cutter is connected to the upper end of the lower welding wire cutting plate. A welding wire base plate and a welding wire holding cylinder are installed at the lower end of the welding wire cutting support. The welding wire holding cylinder has several movable cavities, and a piston is installed in each movable cavity. A holding spring is connected to the upper end of the piston. Several flat holes are distributed on the welding wire base plate, and the lower end of the piston is located above the flat holes.

2. The welding wire cutting structure according to claim 1, characterized in that, A welding wire cutting motor is installed at the upper end of the welding wire cutting support. A welding wire cutting cam is connected to the drive end of the welding wire cutting motor. Welding wire cutting guide holes are provided at the upper middle part of the upper welding wire cutting upper plate and the upper middle part of the upper welding wire cutting lower plate. The welding wire cutting cam is located inside the two welding wire cutting guide holes.

3. The welding wire cutting structure according to claim 1, characterized in that, Both sides of the welding wire cutting support are provided with vertical slide rails along the vertical direction. The upper and lower welding wire cutting plates are both fixed with vertical sliders, which slide on the vertical slide rails.

4. The welding wire cutting structure according to claim 1, characterized in that, The upper end of the lower cutter is provided with several slits, and the shape of the slits is an arc with the upper dimension being larger than the lower dimension.

5. The welding wire cutting structure according to claim 1, characterized in that, The side of the welding wire holding cylinder is provided with several air pipe joints, and the movable cavity is provided with a ventilation area. Each air pipe joint is independently connected to the ventilation area in the movable cavity.

6. The welding wire cutting structure according to claim 1, characterized in that, A top component is fixed to the upper end of the movable cavity, and the upper end of the compression spring is located in the middle of the top component.

7. The welding wire cutting structure according to claim 1, characterized in that, Both sides of the upper plate of the welding wire cutter are equipped with elastic clamps, and both sides of the upper cutter are locked on the elastic clamps. The upper cutter is pressed on the lower cutter at an angle.

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