A busbar cutting mechanism

Abstract

This utility model relates to the field of string welding machine technology, specifically a busbar cutting mechanism. It includes a mounting frame with a cutting opening. An upper cutter and a lower cutter are respectively positioned above and below one side of the cutting opening. A driving device is connected to the top of the upper cutter, driving it to perform a reciprocating motion. The lower cutter is fixedly mounted on the mounting frame. A positioning device is provided on the other side of the cutting opening for positioning the busbar. An adjusting screw is provided on the mounting frame to drive the positioning device to move horizontally along the mounting frame. A first clamping device is provided on one side of the positioning device to clamp the busbar. This mechanism enables automated cutting of busbars, meeting the needs of large-scale, high-quality production.

Description

Technical Field

[0001] This utility model relates to the field of string welding machine technology, specifically a busbar cutting mechanism. Background Technology

[0002] Solar energy is a renewable and clean energy source, and its use for power generation is increasingly valued and favored. A solar cell module is a power generation device that converts light energy into electrical energy. The manufacturing process of a solar cell module involves welding dozens of solar cells for heat collection into strings, laying these strings side-by-side on a glass sheet, and then connecting multiple strings into a complete circuit using busbars, ultimately producing a solar cell module.

[0003] Busbars are usually stored in a coiled manner, so they need to be cut to the specified size before welding. Traditional busbar cutting usually uses a cylinder-driven cutter, which has a relatively simple structure and cannot guide or fix the busbar, thus failing to meet the needs of large-scale, high-quality production at present. Utility Model Content

[0004] To address the problems in the prior art, this application provides a busbar cutting mechanism that can automatically cut busbars to meet the needs of large-scale, high-quality production.

[0005] The technical solution is as follows: A busbar cutting mechanism includes a mounting frame with a cutting opening. An upper cutter and a lower cutter are respectively arranged above and below one side of the cutting opening. A driving device is connected to the top of the upper cutter, which drives the upper cutter to perform vertical reciprocating motion. The lower cutter is fixedly mounted on the mounting frame. A positioning device is provided on the other side of the cutting opening for positioning the busbar. An adjusting screw is provided on the mounting frame to drive the positioning device to move horizontally along the mounting frame. A first clamping device is provided on one side of the positioning device to clamp the busbar.

[0006] Preferably, the driving device includes a motor mounted on the mounting frame, an eccentric shaft connected to the output end of the motor, and a bearing connected to one end of the eccentric shaft; it also includes a mounting plate, a driving frame on the top of the mounting plate, a bottom connection to the upper cutter, and the bearing located inside the driving frame.

[0007] Preferably, the positioning device includes a slider, on which guide wheels are symmetrically arranged, and the busbar passes through the space between the symmetrical guide wheels.

[0008] Preferably, the slider and the adjusting screw are connected by a connecting shaft, and a tension spring is provided on the slider. One end of the tension spring is connected to the slider, and the other end is connected to the mounting bracket.

[0009] Preferably, the mounting bracket has an adjustment rail on its side, and the slider is disposed on the adjustment rail.

[0010] Preferably, the first pressing device includes a support, a lifting cylinder is provided on the top of the support, a rear pressing block is provided at the output end of the lifting cylinder, and a support plate extends from one side of the support.

[0011] Preferably, a second pressing device is provided on the side of the mounting plate. The second pressing device includes a pressing block seat disposed on the mounting plate. The pressing block seat is connected to the top of the support column. A front pressing block is provided at the bottom of the support column. A spring is sleeved on the outside of the support column. The two ends of the spring are respectively connected to the pressing block seat and the front pressing block.

[0012] Preferably, the vertical height of the front pressure block is lower than the vertical height of the upper cutter.

[0013] Preferably, the mounting frame is provided with a lifting rail on its side, and the mounting plate is slidably mounted on the lifting rail.

[0014] Preferably, the mounting bracket includes a horizontal track and a drive cylinder, the mounting bracket is slidably disposed on the horizontal track, and the drive cylinder drives the mounting bracket to move along the horizontal track.

[0015] In summary, the busbar is conveyed along the cutting edge, and the direction of movement of the busbar is positioned by a positioning device, ensuring that the busbar always moves horizontally and avoiding tilting. A first clamping device is also provided; when the busbar moves to the designated length, the first clamping device presses down and fixes the busbar, greatly improving the cutting accuracy. A second clamping device is also provided, working in conjunction with the first clamping device to simultaneously fix both ends of the busbar, further improving the cutting accuracy. Furthermore, compared to cylinder drive, the motor offers higher precision control and a longer service life. This invention is more intelligent and automated, meeting the demands of high production volumes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the first pressing device of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the second pressing device of this utility model;

[0021] Figure 6 This is a schematic diagram of the positioning device of this utility model.

[0022] Reference numerals: 1. Mounting bracket; 2. First clamping device; 201. Support; 202. Support plate; 203. Lifting cylinder; 204. Rear clamping block; 3. Second clamping device; 301. Clamping block seat; 302. Spring; 303. Front clamping block; 304. Support column; 4. Positioning device; 401. Slider; 402. Guide wheel; 5. Bearing; 6. Drive frame; 7. Upper cutter; 8. Lower cutter; 9. Horizontal rail; 10. Connecting shaft; 11. Drive cylinder; 12. Lifting rail; 13. Eccentric shaft; 14. Adjusting screw; 15. Adjusting rail; 16. Busbar; 17. Mounting plate; 18. Motor; 19. Cutting edge; 20. Tension spring. Detailed Implementation

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0024] like Figure 1 and Figure 2 As shown, the system includes a mounting frame 1, which is installed on the ground. Two cutting openings 19 are provided on the mounting frame 1, with an upper cutter 7 and a lower cutter 8 respectively positioned above and below one side of each cutting opening 19. A drive unit, fixed to the mounting frame 1, drives the upper cutter 7. The drive unit includes a motor 18, which is fixed to the mounting frame 1. An eccentric shaft 13 is mounted on the output shaft of the motor 18, and a bearing 5 is mounted on one end of the eccentric shaft 13. A drive frame 6 is connected to the top of a mounting plate 17, and the bottom of the mounting plate 17 is connected to the upper cutter 7. The bearing 5 is secured inside the drive frame 6. The motor 18 drives the eccentric shaft 13 to rotate. Due to the eccentric design, the drive frame 6 can achieve a reciprocating motion, thereby driving the upper cutter 7 to perform a reciprocating motion. To avoid hard friction between the eccentric shaft 13 and the drive frame 6, a bearing 5 is installed on the eccentric shaft 13, transforming the hard friction into rolling friction from the bearing 5's own rotation, further improving the smoothness of the overall movement.

[0025] like Figure 1 As shown, the lower cutter 8 is fixed on the mounting bracket 1 at the position corresponding to the upper cutter 7. The cutting surface of the upper cutter 7 is a beveled cutting surface, which can form a scissor-like cutting method with the horizontal plane of the lower cutter 8, which can save more effort and make the cutting of the busbar 16 smoother.

[0026] like Figure 2 and Figure 6 As shown, two sets of adjusting tracks 15 parallel to the ground are provided on the side of the mounting frame 1 below the other side of the cutting opening 19. A positioning device 4 is also provided on the other side of the cutting opening 19. The positioning device 4 includes a slider 401, which is mounted on the adjusting track 15 and can move along it. Guide wheels 402 are symmetrically arranged on the slider 401, and the distance between the two guide wheels 402 is designed according to the width of the busbar 16. An adjusting screw 14 is also provided; this adjusting screw 14 is a ball screw, which can convert rotary motion into linear motion. The adjusting screw 14 is connected to the slider 401 via a connecting shaft 10, and can adjust the position of the slider 401 on the adjusting track 15. A tension spring 20 is also provided on the slider 401; one end of the tension spring 20 is fixed to the slider 401, and the other end is mounted on the mounting frame 1 near the adjusting screw 14.

[0027] When adjusting the position of slider 401, rotating the adjusting block on the adjusting screw 14 changes the position of slider 401 on the adjusting track 15. After adjustment, stop rotating the adjusting block. At this time, the tension spring 20 provides a horizontal force in the opposite direction through its own elasticity, which, together with the adjusting screw 14, fixes slider 401 in this position. Compared with the screw fixing method, this design allows for adjustment while the cutting mechanism is in operation without stopping the machine, thus maintaining the production rhythm and improving production efficiency.

[0028] like Figure 2 and Figure 4 As shown, a first pressing device 2 is also installed on one side of the positioning device 4. The first pressing device 2 includes a support 201 fixed to the ground. Two lifting cylinders 203 are installed on the top of the support 201, which can correspond to the two cutting openings 19 respectively. The lifting cylinders 203 are single-acting cylinders. A single-acting cylinder has a piston rod at only one end. Air is supplied from the piston side to generate air pressure, which pushes the piston to generate thrust and extend it. A rear pressure block 204 is installed at the piston rod end of each lifting cylinder 203. The rear pressure block 204 presses down and fixes the manifold 16. At the same time, an extended support plate 202 is installed on the side of the support 201 near the mounting frame 1 to support the manifold 16 and prevent the manifold 16 from bending due to its own weight during transportation.

[0029] like Figure 3 and Figure 5 As shown, a second pressing device 3 is also installed alongside the first pressing device 2. The second pressing device 3 is mounted on the side of the mounting plate 17 and includes a pressing block seat 301 mounted on the mounting plate 17. Two grooves are formed on the bottom surface of the pressing block seat 301, and a support column 304 is installed in each of the two grooves. One end of the support column 304 is inserted into the groove, and the other end is connected to the front pressing block 303. The dimensions of the front pressing block 303 are designed according to the width of the busbar 16. A spring 302 is sleeved on the outside of the support column 304, and both ends of the spring 302 are connected to the pressing block seat 301 and the front pressing block 303, respectively. The vertical height of the front pressing block 303 is lower than the vertical height of the upper cutter 7, so that when the mounting plate 17 is lowered, the front pressing block 303 can preferentially contact the busbar 16 with the upper cutter 7.

[0030] When fixing the busbar 16, the lifting cylinder 203 drives the rear pressure block 204 to fix one end of the busbar 16. Then, when the mounting plate 17 descends, the front pressure block 303 can fix the other end of the busbar 16. Only after fixing will the upper cutter 7 cut the busbar 16.

[0031] like Figure 1 As shown, a lifting rail 12 is provided on the side of the mounting frame 1, and the mounting plate 17 is slidably disposed on the lifting rail 12, so that the mounting plate 17 can move along the lifting rail 12, thereby improving the stability of the movement of the mounting plate 17.

[0032] like Figure 2As shown, a horizontal track 9 and a drive cylinder 11 are also installed on the ground. The horizontal track 9 is installed in the same direction as the conveying direction of the busbar 16. The drive cylinder 11 is also a single-acting cylinder. The mounting frame 1 is slidably mounted on the horizontal track 9. The piston rod of the drive cylinder 11 is connected to the bottom of the mounting frame 1, enabling it to drive the mounting frame 1 to move along the horizontal track 9. After the busbar 16 is cut by the upper cutter 7 and the lower cutter 8, when cutting the next section of the busbar 16, the busbar 16 needs to be pulled again. Pulling can be done manually or by a pulling device. To improve the overall automation efficiency, a pulling device is used here. Neither pulling method can grip the busbar 16, so the mounting frame 1 needs to be moved a certain distance to expose one end of the busbar 16 for easy gripping by the pulling device. At this time, the drive cylinder 11 needs to drive the mounting frame 1 to move a small distance along the horizontal track 9. The pulling device here uses pneumatic fingers, also known as pneumatic grippers or pneumatic chucks. These are actuators that use compressed air as power to grip or grasp workpieces. The pneumatic fingers move along a track, the direction of which is the direction of movement of the manifold 16. The manifold 16 is grasped and moved by the pneumatic fingers.

[0033] The overall workflow is as follows: One end of the busbar roll is placed from the support plate 202, passing between the guide wheels 402, and then through the cutting opening 19. After adjusting the position of the positioning device 4 to the designated position using the adjusting screw 14, the pulling device pulls the busbar 16 and moves it. When the length of the busbar 16 reaches the designated length, the lifting cylinder 203 controls the lowering of the rear pressure block 204 to press and fix one end of the busbar 16. The motor 18 drives the eccentric shaft 13 to rotate, causing the upper cutter 7 to move downward. The front pressure block 303 first contacts the other end of the busbar 16, thereby fixing the other end of the busbar 16. Then, the upper cutter 7 contacts the busbar 16, and the busbar 16 is cut by the cooperation of the upper cutter 7 and the lower cutter 8. The cut busbar 16 is then moved to the designated position by the pulling device. The drive cylinder 11 drives the mounting bracket 1 to move a short distance along the horizontal track 9 toward the first pressing device 2. The pulling device then grasps and moves one end of the busbar 16. The drive cylinder 11 drives the mounting bracket 1 to return to its original position. Then the above steps are repeated to cut the busbar 16.

[0034] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art that are not covered by the invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the appended claims.

[0035] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A busbar cutting mechanism characterized by, The device includes a mounting frame (1), which has a cutting opening (19). An upper cutter (7) and a lower cutter (8) are respectively provided on the upper and lower sides of one side of the cutting opening (19). A driving device is connected to the top of the upper cutter (7), which drives the upper cutter (7) to perform vertical and reciprocating motion. The lower cutter (8) is fixedly mounted on the mounting frame (1). A positioning device (4) is provided on the other side of the cutting opening (19) for positioning the busbar (16). An adjusting screw (14) is provided on the mounting frame (1) to drive the positioning device (4) to move horizontally along the mounting frame (1). A first pressing device (2) is provided on one side of the positioning device (4) to press the busbar (16). The positioning device (4) includes a slider (401), on which guide wheels (402) are symmetrically arranged, and the busbar (16) passes through the symmetrical guide wheels (402); The slider (401) and the adjusting screw (14) are connected by a connecting shaft (10). A tension spring (20) is provided on the slider (401). One end of the tension spring (20) is connected to the slider (401), and the other end is connected to the mounting bracket (1). The mounting bracket (1) has an adjustment rail (15) on its side, and the slider (401) is mounted on the adjustment rail (15).

2. The busbar cutting mechanism of claim 1, wherein The drive device includes a motor (18) mounted on the mounting frame (1), an eccentric shaft (13) connected to the output end of the motor (18), and a bearing (5) connected to one end of the eccentric shaft (13); it also includes a mounting plate (17), a drive frame (6) is provided on the top of the mounting plate (17), and the bottom is connected to the upper cutter (7), and the bearing (5) is located inside the drive frame (6).

3. The busbar cutting mechanism of claim 1, wherein The first pressing device (2) includes a support (201), a lifting cylinder (203) is provided on the top of the support (201), a rear pressing block (204) is provided at the output end of the lifting cylinder (203), and a support plate (202) is provided on one side of the support (201).

4. The busbar cutting mechanism of claim 2, wherein The mounting plate (17) is provided with a second pressing device (3) on its side. The second pressing device (3) includes a pressing block seat (301) on the mounting plate (17). The pressing block seat (301) is connected to the top of the support column (304). A front pressing block (303) is provided at the bottom of the support column (304). A spring (302) is sleeved on the outside of the support column (304). The two ends of the spring (302) are connected to the pressing block seat (301) and the front pressing block (303) respectively.

5. A busbar cutting mechanism according to claim 4, wherein The vertical height of the front pressure block (303) is lower than the vertical height of the upper cutter (7).

6. The busbar cutting mechanism of claim 2, wherein The mounting bracket (1) is provided with a lifting rail (12) on its side, and the mounting plate (17) is slidably mounted on the lifting rail (12).

7. A busbar cutting mechanism according to claim 1, characterized in that, Includes a horizontal track (9) and a drive cylinder (11). The mounting bracket (1) is slidably disposed on the horizontal track (9), and the drive cylinder (11) drives the mounting bracket (1) to move along the horizontal track (9).

Images