Welding wire tensioning structure

Abstract

The welding wire tensioning structure comprises a main wire tensioning plate and a rear wire tensioning plate, fixed wheel supports are installed at the front end and the rear end of the rear wire tensioning plate, glands are hinged to the rear sides of the fixed wheel supports, fixed wire tensioning wheels and a wire tensioning guide rod are installed on the fixed wheel supports, and the glands cover the wire tensioning guide rod. Magnets are installed below the end portion of the bracing wire guide rod and at the front end of the fixed wheel support, a guide column is fixed to the bracing wire main plate in the vertical direction, a movable wheel support is connected to the guide column in a sliding mode, a plurality of bracing wire movable wheels are distributed on the movable wheel support, and a bracing wire spring is arranged at the upper end of the movable wheel support. According to the welding wire tensioning structure, the movable wheel support controls the tensioning degree of wire outgoing of the welding wire, the two side faces of the wire tensioning movable wheel are different in size, wire incoming is more convenient, the wire tensioning movable wheel can be lifted by the handle for wire incoming, the welding wire is tightened under the action of the wire tensioning spring, the sensor senses the position of the wire tensioning movable wheel and controls wire outgoing of the welding wire, and the pressing cover is buckled on the upper portion through the magnet. And threading is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of silicon wafer string soldering, and particularly relates to a wire tensioning 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 powers a load. In a BC cell (fully called a back contact cell, which can be combined with multiple routes), during the process of wire outlet, a tensioning structure is required to keep the wire straight. In a conventional tensioning structure, it is difficult to thread the wire, and in the case of wire relaxation, it cannot be timely feedback to the position of the wire reel. Summary of the Invention

[0003] An object of the present invention is to provide a wire tensioning structure, which is more convenient for threading at the upper end, and elastically limits the moving wheel bracket at the lower end to keep the wire taut.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A wire tensioning structure includes a wire tensioning main board and a wire tensioning rear board. The wire tensioning rear board is fixed on one side of the upper end of the wire tensioning main board. Fixed wheels brackets are installed at both the front and rear ends of the wire tensioning rear board. A pressure cover is hinged to the rear side of the fixed wheels bracket. A wire tensioning fixed wheel and a wire tensioning guide rod are installed on the fixed wheels bracket. The pressure cover covers the wire tensioning guide rod. Magnets are installed below the end of the wire tensioning guide rod and at the front end of the fixed wheels bracket respectively, and the two magnets are magnetically connected to each other. A guide post is fixed vertically on the wire tensioning main board. A limit plate strip is locked at the upper end of the guide post. A moving wheel bracket is slidably connected to the guide post. A number of wire tensioning moving wheels are distributed on the moving wheel bracket. A wire tensioning spring is arranged at the upper end of the moving wheel bracket, and the wire tensioning spring is sleeved on the guide post.

[0006] As a preferred technical solution, a slide rail is fixed vertically on the wire tensioning main board, and a slider is fixed on the moving wheel bracket, and the slider slides on the slide rail.

[0007] As a preferred technical solution, one side dimension of the wire tensioning moving wheel is larger than the other side dimension of the wire tensioning moving wheel.

[0008] As a preferred technical solution, a sensing piece is fixed on the moving wheel bracket, and a photoelectric sensor is fixed at the lower end of the wire tensioning main board, and the sensing piece is in signal connection with the photoelectric sensor.

[0009] As a preferred technical solution, a handle is fixed to the side of the wire-pulling moving wheel, and the handle protrudes beyond the wire-pulling moving wheel.

[0010] As a preferred technical solution, a hinge member is fixed to the wire-pulling rear plate, and the rear end of the gland is connected to the hinge member.

[0011] As a preferred technical solution, a wheel shaft is fixed to the wire-pulling rear plate, and the wire-pulling fixed wheel is rotatably connected to the wheel shaft.

[0012] As a preferred technical solution, a bottom plate is fixed to the lower end of the wire-pulling main plate, a buffer rubber is fixed to the bottom plate, and the sensing piece passes through the bottom plate.

[0013] The beneficial effects of the present invention are as follows: A wire tensioning structure is provided. In this wire tensioning structure, the moving wheel bracket controls the tension degree of the wire outlet. There are size differences on both sides of the wire-pulling moving wheel, which makes it more convenient for the wire to enter. The handle can lift the wire-pulling moving wheel for wire entry. Under the action of the wire-pulling spring, the wire is tightened. The sensor senses the position of the wire-pulling moving wheel to control the wire outlet. The gland is buckled by a magnet above, making wire threading convenient. Description of the Drawings

[0014] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0015] Figure 1 It is a schematic diagram of the overall structure of a wire tensioning structure described in the embodiment;

[0016] Figure 2 It is a schematic diagram of the upper-end structure of a wire tensioning structure described in the embodiment;

[0017] Figure 3 It is a schematic diagram of the lower-end structure of a wire tensioning structure described in the embodiment;

[0018] Figure 4 It is a front-side structure diagram of the wire-pulling rear plate described in the embodiment;

[0019] Figure 5 It is a rear-side structure diagram of the wire-pulling rear plate described in the embodiment.

[0020] Figures 1 to 5 In which:

[0021] 1. Wire-pulling main plate; 2. Wire-pulling rear plate; 3. Fixed wheel bracket; 4. Gland; 5. Wire-pulling fixed wheel; 6. Wire-pulling guide rod; 7. Magnet; 8. Guide post; 9. Limit plate strip; 10. Moving wheel bracket; 11. Wire-pulling moving wheel; 12. Wire-pulling spring; 13. Slide rail; 14. Slide block; 15. Sensing piece; 16. Photoelectric sensor; 17. Handle; 18. Hinge member; 19. Wheel shaft; 20. Bottom plate; 21. Buffer rubber. Detailed implementation manners

[0022] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation manners.

[0023] As Figures 1 to 5 shown, in this embodiment, a wire tensioning structure includes a wire tensioning main board 1 and a wire tensioning rear board 2. The wire tensioning rear board 2 is fixed to one side of the upper end of the wire tensioning main board 1. Fixed wheel brackets 3 are installed at both the front and rear ends of the wire tensioning rear board 2. A pressure cover 4 is hinged to the rear side of the fixed wheel bracket 3. A wire tensioning fixed wheel 5 and a wire tensioning guide rod 6 are installed on the fixed wheel bracket 3. The pressure cover 4 covers the wire tensioning guide rod 6. Magnets 7 are installed below the end of the wire tensioning guide rod 6 and at the front end of the fixed wheel bracket 3 respectively, and the two magnets 7 are magnetically attracted to each other. A guide post 8 is fixed along the vertical direction on the wire tensioning main board 1. A limit plate strip 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 wire tensioning moving wheels 11 are distributed on the moving wheel bracket 10. A wire tensioning spring 12 is arranged at the upper end of the moving wheel bracket 10, and the wire 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 wire tensioning rear board 2, enters the winding of the wire tensioning fixed wheel 5 under the guiding action of the wire tensioning guide rod 6, then passes downward through the wire tensioning moving wheels 11 below, and then winds back to the wire tensioning fixed wheel 5 on the other side of the wire tensioning rear board 2, and finally is led out of the wire tensioning main board 1 from the wire tensioning guide rod 6 under the pressure cover 4.

[0025] When threading the wire, the pressure cover 4 that relies on the magnets 7 to adsorb each other is opened, and the welding wire can be placed between the wire tensioning guide rods 6, and then the pressure cover 4 is covered back to be magnetically fixed. In the case of tensioning, the welding wire pulls the moving wheel bracket 10 where the wire tensioning moving wheels 11 are located upward. After rising along the guide post 8, the wire tensioning spring 12 is compressed under the limitation of the limit plate strip 9, so that the position of the moving wheel bracket 10 is restricted. In addition, the height of the limit plate strip 9 can be adjusted manually.

[0026] A slide rail 13 is fixed along the vertical direction on the wire tensioning main board 1. A slide block 14 is fixed on the moving wheel bracket 10. The slide block 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 relying on the sliding of the slide block 14 and the slide rail 13.

[0027] The size of one side surface of the wire tensioning moving wheel 11 is larger than the size of the other side surface of the wire tensioning moving wheel 11. The welding wire is put into the wire tensioning moving wheel 11 from the side with the smaller size, and the position is restricted by the side with the larger size. Compared with the wire tensioning moving wheel 11 with the same size on both sides, the wire feeding is faster and more convenient.

[0028] A sensing piece 15 is fixed on the driving wheel bracket 10, and a photoelectric sensor 16 is fixed at the lower end of the wire tensioning main board 1. The sensing piece 15 is signal-connected to the photoelectric sensor 16. In the state where the welding wire is loose, the driving wheel bracket 10 drops to the lowest end, and the sensing piece 15 makes signal contact with the photoelectric sensor 16, so as to control the wire feeding structure of the welding wire to immediately stop relaxing the welding wire.

[0029] A handle 17 is fixed on the side of the wire tensioning driving wheel 11, and the handle 17 protrudes outside the wire tensioning driving wheel 11. When multiple wire tensioning driving wheels 11 pass through the wire, the wire tensioning driving wheel 11 is manually lifted by the handle 17 and then the wire passes through.

[0030] A hinge member 18 is fixed on the wire tensioning rear board 2, and the rear end of the gland 4 is connected to the hinge member 18. Under the action of the hinge member 18, the gland 4 can be opened on the wire tensioning rear board 2, and the opening and closing are convenient by magnetic attraction.

[0031] A wheel shaft 19 is fixed on the wire tensioning rear board 2, the wire tensioning fixed wheel 5 is rotatably connected to the wheel shaft 19, a bottom plate 20 is fixed at the lower end of the wire tensioning main board 1, a buffer rubber 21 is fixed on the bottom plate 20, the sensing piece 15 passes through the bottom plate 20, and the welding wire passes through the wire tensioning fixed wheel 5 on the wheel shaft 19. In the case where the welding wire is loose, the driving wheel bracket 10 moves downward and touches the buffer rubber 21 to prevent hard collision.

[0032] It should be noted that the above specific embodiments are only the preferred embodiments of the present invention and the applied technical principles. 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 by the protection scope of the present invention.

Claims

1. A wire tensioning structure, characterized in that, It includes a wire-stretching main board and a wire-stretching rear board. The wire-stretching rear board is fixed to one side of the upper end of the wire-stretching main board. Fixed-wheel brackets are installed at both the front and rear ends of the wire-stretching rear board. A gland is hinged to the rear side of the fixed-wheel bracket. A wire-stretching fixed wheel and a wire-stretching guide rod are installed on the fixed-wheel bracket. The gland covers the wire-stretching guide rod. Magnets are installed below the end of the wire-stretching guide rod and at the front end of the fixed-wheel bracket respectively, and the two magnets are magnetically connected to each other. Guide columns are fixed vertically on the wire-stretching main board. A limiting plate strip is locked at the upper end of the guide column. A moving-wheel bracket is slidably connected to the guide column. A number of wire-stretching moving wheels are distributed on the moving-wheel bracket. A wire-stretching spring is arranged at the upper end of the moving-wheel bracket, and the wire-stretching spring is sleeved on the guide column.

2. The wire tensioning structure according to claim 1, wherein Sliding rails are fixed vertically on the wire-stretching main board. Sliders are fixed on the moving-wheel bracket, and the sliders slide on the sliding rails.

3. The wire tensioning structure according to claim 1, characterized in that, The size of one side surface of the wire-stretching moving wheel is larger than that of the other side surface of the wire-stretching moving wheel.

4. A wire tensioning structure according to claim 1, characterized in that, A sensing piece is fixed on the moving-wheel bracket. A photoelectric sensor is fixed at the lower end of the wire-stretching main board, and the sensing piece is in signal connection with the photoelectric sensor.

5. The wire tensioning structure according to claim 1, characterized in that, A handle is fixed to the side of the wire-stretching moving wheel, and the handle protrudes out of the wire-stretching moving wheel.

6. The wire tensioning structure according to claim 1, characterized in that, A hinge piece is fixed on the wire-stretching rear board, and the rear end of the gland is connected to the hinge piece.

7. A wire tensioning structure according to claim 1, characterized in that, A wheel shaft is fixed on the wire-stretching rear board, and the wire-stretching fixed wheel is rotatably connected to the wheel shaft.

8. A wire tensioning structure according to claim 1, characterized in that, A bottom plate is fixed at the lower end of the wire-stretching main board. A buffer rubber is fixed on the bottom plate, and the sensing piece passes through the bottom plate.

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