Welding wire cutting structure
Through the opposite movement of the upper and lower plates of the welding wire cutting and arc-shaped cutting knife design, combined with piston and cylinder pressing, the problems of burrs and offsets in the welding wire cutting structure are solved, and stable cutting and efficient production of the welding wire are achieved.
Patent Information
- Application Number
- CN202510517208.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2025-07-11
AI Technical Summary
The existing wire cutting structure can easily lead to burrs and offsets in the cutting position of the wire, and multiple sets of wires are affected by each other during cutting.
The structure of the upper and lower plates moving in the vertical direction with the welding wire, combined with the arc design of the upper and lower cutters, the piston and press-holding cylinders independently press a single welding wire, and the cutting process is controlled through the wire cutting motor and cam to ensure that the welding wire does not flip and offset during cutting.
Effectively prevent the welding wire from flipping and offsetting during cutting, avoiding burrs, ensuring that multiple welding wires do not affect each other when cutting, and improving cutting accuracy and efficiency.
Smart Images
Figure CN120286606A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of silicon wafer string soldering, and particularly to a wire cutting structure. Background Art
[0002] Photovoltaic solar silicon wafers are the core part of a solar power generation system and also the most valuable part of a solar power generation system. The function of the silicon wafer is to convert solar energy into electrical energy, which is stored by a storage battery or directly used to power a load. In a BC cell (fully called a back contact cell, which can be combined with multiple routes), after the wire is pulled out from the wire loading rack, it is cut according to the required length. In the existing cutting structures, either the upper cutting knife moves alone or the lower cutting knife moves alone, which easily causes burrs and vertical offsets at the cutting position of the wire. When the wire passes through the cutting structure, it is prone to flipping by a certain angle. Under the pressing of a single cylinder structure for multiple groups of wires, they will affect each other. Summary of the Invention
[0003] An object of the present invention is to provide a wire cutting structure that can effectively prevent the wire from flipping when passing through, independently presses and holds a single wire for cutting, and avoids wire offset and burrs during cutting.
[0004] To achieve this purpose, the present invention adopts the following technical solutions:
[0005] A wire cutting structure includes a wire cutting support, a wire cutting upper plate, and a wire cutting lower plate. The wire cutting upper plate and the wire cutting lower plate move towards each other in the vertical direction. A upper cutting knife is connected to the lower end of the wire cutting upper plate, and a lower cutting knife is connected to the upper end of the wire cutting lower plate. A wire bottom plate and a wire pressing cylinder are installed at the lower end of the wire cutting support. A number of movable cavities are distributed on the wire pressing cylinder, and a piston is installed in each movable cavity. A pressing spring is connected to the upper end of the piston. A number of flat holes are distributed on the wire bottom plate, and the lower end of the piston is located above the flat holes.
[0006] As a preferred technical solution, a wire cutting motor is installed at the upper end of the wire cutting support, and a wire cutting cam is connected to the driving end of the wire cutting motor. Wire cutting guide holes are provided in the middle of the upper end of the wire cutting upper plate and the middle of the upper end of the wire cutting lower plate, and the wire cutting cam is located inside the two wire cutting guide holes.
[0007] As a preferred technical solution, vertical slide rails are provided along the vertical direction on both sides of the wire cutting support, and vertical sliders are fixed to the wire cutting upper plate and the wire cutting lower plate. The vertical sliders slide on the vertical slide rails.
[0008] As a preferred technical solution, a plurality of incisions are provided at the upper end of the lower cutting knife, and the shape of the incision is an arc with a larger upper dimension than the lower dimension.
[0009] As a preferred technical solution, a plurality of air pipe joints are provided on the side of the wire pressing cylinder, an air vent area is provided in the movable cavity, and one air pipe joint is independently connected to the air vent area in one movable cavity.
[0010] As a preferred technical solution, a top member is fixed at the upper end of the movable cavity, and the upper end of the pressing spring is located in the middle of the top member.
[0011] As a preferred technical solution, elastic clips are installed on both sides of the upper wire cutting plate, both sides of the upper cutting knife are locked on the elastic clips, and the upper cutting knife is inclined and pressed on the lower cutting knife.
[0012] The beneficial effects of the present invention are as follows: A wire cutting structure is provided. In this wire cutting structure, the wire passes through the flat hole to prevent the wire from flipping. The upper cutting knife and the lower cutting knife move towards the middle simultaneously to cut the wire, so that there will be no burrs and offsets at the cutting position of the wire. And the cutting edge position of the lower cutting knife is set as an arc to guide the wire to correct its position. Multiple pistons independently press the wire, so that multiple wires are not affected by each other during cutting. Description of the Drawings
[0013] The present invention will be further described in detail below with reference to the drawings and embodiments.
[0014] Figure 1 It is the first structural schematic diagram of a wire cutting structure described in the embodiment;
[0015] Figure 2 It is the second structural schematic diagram of a wire cutting structure described in the embodiment;
[0016] Figure 3 It is the third structural schematic diagram of a wire cutting structure described in the embodiment;
[0017] Figure 4 It is the combined structural schematic diagram of the wire bottom plate and the wire pressing cylinder described in the embodiment;
[0018] Figure 5 It is the combined partial cross-sectional view of the wire bottom plate and the wire pressing cylinder described in the embodiment.
[0019] Figures 1 to 5 In:
[0020] 1. Wire cutting support; 2. Upper wire cutting plate; 3. Lower wire cutting plate; 4. Upper cutting knife; 5. Lower cutting knife; 6. Wire bottom plate; 7. Wire pressing cylinder; 8. Wire; 9. Piston; 10. Pressing spring; 11. Flat hole; 12. Wire cutting motor; 13. Wire cutting cam; 14. Wire cutting guide hole; 15. Vertical slide rail; 16. Vertical slider; 17. Cut; 18. Air pipe joint; 19. Ventilation area; 20. Top part; 21. Elastic clip. Detailed implementation mode
[0021] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation modes.
[0022] As Figures 1 to 5 shown, in this embodiment, a wire cutting structure includes a wire cutting support 1, an upper wire cutting plate 2 and a lower wire cutting plate 3. The upper wire cutting plate 2 and the lower wire cutting plate 3 move towards each other in the vertical direction. The lower end of the upper wire cutting plate 2 is connected with an upper cutting knife 4, and the upper end of the lower wire cutting plate 3 is connected with a lower cutting knife 5. The lower end of the wire cutting support 1 is installed with a wire bottom plate 6 and a wire pressing cylinder 7. A number of movable cavity positions are distributed on the wire pressing cylinder 7, and a piston 9 is installed in each movable cavity position. The upper end of the piston 9 is connected with a pressing spring 10. A number of flat holes 11 are distributed on the wire bottom plate 6, and the lower end of the piston 9 is located above the flat holes 11.
[0023] When the upper wire cutting plate 2 rises and the lower wire cutting plate 3 descends, the wire 8 passes through the wire cutting support 1 and passes through the flat holes 11 on the wire bottom plate 6. At this time, the piston 9 moves under the action of the pressing spring 10, and a single piston 9 stably presses a single wire 8 in a single flat hole 11. The upper wire cutting plate 2 and the lower wire cutting plate 3 move towards each other and approach the wire 8 at the same time to cut the wire 8. Then, the wire pressing cylinder 7 is ventilated, so that the piston 9 contracts the pressing spring 10 upward and releases the cut wire 8, and the wire 8 can be placed in a suitable position.
[0024] The upper end of the wire cutting support 1 is installed with a wire cutting motor 12. The driving end of the wire cutting motor 12 is connected with a wire cutting cam 13. Wire cutting guide holes 14 are provided in the middle of the upper end of the upper wire cutting plate 2 and the middle of the upper end of the lower wire cutting plate 3. The wire cutting cam 13 is located inside the two wire cutting guide holes 14. Vertical slide rails 15 are provided along the vertical direction on both sides of the wire cutting support 1. Vertical sliders 16 are fixed on the upper wire cutting plate 2 and the lower wire cutting plate 3, and the vertical sliders 16 slide on the vertical slide rails 15.
[0025] When the wire cutting motor 12 controls the rotation of the wire cutting cam 13, the two wire cutting guide holes 14 respectively control the movement of the wire cutting upper plate 2 and the wire cutting lower plate 3, and under the action of the vertical slider 16 and the vertical slide rail 15, they move towards the middle synchronously to cut the wire 8.
[0026] Several notches 17 are provided at the upper end of the lower cutting knife 5. The shape of the notch 17 is an arc with a larger upper size than the lower size. This arc structure enables the wire 8 to be positioned at a set position at the bottom when subjected to the force of the upper and lower cutting knives 5, ensuring that it will not shift and making the cutting more smooth.
[0027] Several air pipe joints 18 are provided on the side of the wire pressing cylinder 7, and an air ventilation area 19 is provided in the movable cavity. One air pipe joint 18 is independently connected to the air ventilation area 19 in one movable cavity.
[0028] When it is necessary to fix the wire 8 for cutting, the air pipe joint 18 is not connected to air. The pressing spring 10 presses the piston 9 downward, so that the lower end of the piston 9 stably holds the wire 8 in the flat hole 11. When the cutting is completed and the wire 8 needs to be sent away, the air pipe joint 18 is ventilated. The air ventilation area 19 in the movable cavity expands after receiving air, forcing the piston 9 to move upward and squeezing the pressing spring 10. At this time, the lower end of the piston 9 is opened so that the wire 8 can move.
[0029] A top member 20 is fixed at the upper end of the movable cavity. The upper end of the pressing spring 10 is located in the middle of the top member 20. Under the action of the top member 20, the pressing spring 10 can expand and contract in the movable cavity.
[0030] Elastic clips 21 are installed on both sides of the wire cutting upper plate 2. The two sides of the upper cutting knife 4 are locked on the elastic clips 21, and the upper cutting knife 4 is inclined and pressed on the lower cutting knife 5.
[0031] Under the action of the elastic clip 21, the lower end of the upper cutting knife 4 can closely adhere to the lower cutting knife 5 in an inclined manner, maintaining sharpness during cutting.
[0032] It should be noted that the above specific embodiments are only the preferred embodiments of the present invention and the technical principles applied. Within the technical scope disclosed by the present invention, any changes or substitutions that are easily conceivable by those skilled in the art should be covered within the protection scope of the present invention.
Claims
1. A wire cutting structure, characterized in that, It includes a wire cutting support, an upper wire cutting plate, and a lower wire cutting plate. The upper wire cutting plate and the lower wire cutting plate move towards each other in the vertical direction. A upper cutting knife is connected to the lower end of the upper wire cutting plate, and a lower cutting knife is connected to the upper end of the lower wire cutting plate. A wire bottom plate and a wire pressing cylinder are installed at the lower end of the wire cutting support. A number of movable cavity positions are distributed on the wire pressing cylinder, and a piston is installed in each movable cavity position. A pressing spring is connected to the upper end of the piston. A number of flat holes are distributed on the wire bottom plate, and the lower end of the piston is above the flat holes.
2. The wire cutting structure according to claim 1, characterized in that, A wire cutting motor is installed at the upper end of the wire cutting support. A wire cutting cam is connected to the driving end of the wire cutting motor. Wire cutting guide holes are provided in the middle of the upper end of the upper wire cutting plate and the upper end of the lower wire cutting plate, and the wire cutting cam is inside the two wire cutting guide holes.
3. The wire cutting structure according to claim 1, characterized in that Vertical slide rails are provided along the vertical direction on both sides of the wire cutting support. Vertical sliders are fixed to the upper wire cutting plate and the lower wire cutting plate, and the vertical sliders slide on the vertical slide rails.
4. A wire cutting structure according to claim 1, characterized in that, A number of cutouts are provided at the upper end of the lower cutting knife, and the shape of the cutouts is an arc with a larger size at the upper part and a smaller size at the lower part.
5. A wire cutting structure according to claim 1, characterized in that, A number of air pipe connectors are provided on the side of the wire pressing cylinder, and an air vent area is provided in the movable cavity position. One air pipe connector independently communicates with the air vent area in one movable cavity position.
6. A wire cutting structure according to claim 1, characterized in that, A top member is fixed to the upper end of the movable cavity position, and the upper end of the pressing spring is in the middle of the top member.
7. A wire cutting structure according to claim 1, characterized in that Elastic clips are installed on both sides of the upper wire cutting plate. Both sides of the upper cutting knife are locked on the elastic clips, and the upper cutting knife is inclined and pressed on the lower cutting knife.