Photovoltaic stringing cut-off machine

By designing a cutting machine for photovoltaic string welding, a multi-structure combination is used to achieve quick blade replacement and waste collection, solving the problem of complicated blade replacement in traditional cutting machines, and improving production efficiency and environmental cleanliness.

CN224347019UActive Publication Date: 2026-06-12NANJING LINGCHUANG TECHNOLOGY DEVELOPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING LINGCHUANG TECHNOLOGY DEVELOPMENT CO LTD
Filing Date
2025-05-06
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Traditional photovoltaic string welding and cutting machines are cumbersome and complicated to change the cutting blade, which consumes a lot of time and manpower, affects production efficiency, and may lead to production line interruption and energy waste.

Method used

A cutting machine for photovoltaic string welding was designed, which uses multiple structures working together to achieve quick cutter replacement, including a motor, hydraulic cylinder, slider, clamping block, etc., simplifying the cutter replacement operation, and collecting waste through a collection tank and filter screen to keep the working environment clean.

🎯Benefits of technology

It enables quick and convenient blade replacement, reduces equipment downtime, improves production efficiency, reduces labor intensity, avoids increased production costs, and ensures the accuracy and safety of cutting operations.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224347019U_ABST
    Figure CN224347019U_ABST
Patent Text Reader

Abstract

This utility model provides a cutting machine for photovoltaic string welding, relating to the field of cutting machine technology. It includes a machine body, a motor fixed to the surface of the machine body, a drive rod fixedly installed at the output end of the motor, and a driven rod sleeved inside the machine body. This utility model, through the arrangement of the machine body, motor, drive rod, driven rod, conveyor belt, groove, observation window, hydraulic cylinder, fixing block, fixing groove, moving block, insertion groove, and insertion rod, allows for quick blade replacement through the coordinated movement of multiple structures during operation. This eliminates the need for significant time and manpower, avoiding impact on production efficiency. Furthermore, the quick and simple blade replacement mechanism eliminates the need for highly skilled operators with extensive experience to perform the blade replacement operation, thus preventing disruption to overall production progress and effectively preventing energy waste and increased production costs.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of cutting machine technology, and in particular to a cutting machine for photovoltaic string welding. Background Technology

[0002] With the rapid development of the photovoltaic industry, the importance of photovoltaic string welding in photovoltaic module production is becoming increasingly prominent. Accurate cutting of the welded photovoltaic strings is a crucial step in ensuring product quality and production efficiency during the photovoltaic string welding process. Traditional photovoltaic string welding cutting machines have many problems with cutter replacement. On the one hand, the cutter replacement process is cumbersome and complex, requiring significant time and manpower, severely impacting production efficiency. For example, some cutting machines have complex cutter installation structures, making disassembly and installation difficult, requiring operators to possess high technical skills and extensive experience to complete the cutter replacement operation. On the other hand, traditional cutting machines may require prolonged downtime during cutter replacement, which not only disrupts the production line and affects the overall production schedule but may also lead to energy waste and increased production costs. Furthermore, as the photovoltaic market's demands for product quality and production efficiency continue to rise, there is a need for a photovoltaic string welding cutting machine that allows for quick and convenient cutter replacement to meet the demands of high-efficiency production. This cutting machine should have a simple and easy-to-use cutter replacement structure, enabling operators to complete cutter replacement in a short time, reducing equipment downtime, improving production efficiency, and simultaneously reducing operational difficulty and labor intensity. In conclusion, in order to solve the problem of blade replacement in traditional photovoltaic string welding cutting machines and meet the needs of the photovoltaic industry, it is of great practical significance to develop a photovoltaic string welding cutting machine with quick blade replacement function.

[0003] However, with traditional equipment, changing the cutter is a cumbersome and complex process, requiring significant time and manpower, severely impacting production efficiency. Some cutting machines have complex cutter installation structures, making disassembly and installation difficult, requiring operators with high technical skills and extensive experience to complete the cutter replacement. Furthermore, changing the cutter on traditional cutting machines may require prolonged downtime, which not only disrupts the production line and affects overall production progress but also potentially leads to energy waste and increased production costs, necessitating improvements. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems mentioned in the background section.

[0005] This utility model adopts the following technical solution: a cutting machine for photovoltaic string welding, comprising a machine body, a motor fixed to the surface of the machine body, a drive rod fixedly installed at the output end of the motor, a driven rod sleeved inside the machine body, a conveyor belt sleeved on the outer surface of the drive rod and the driven rod, a groove formed on the surface of the machine body, an observation window fixedly installed inside the groove, a hydraulic cylinder fixed to the top of the machine body, a fixing block fixedly installed at the output end of the hydraulic cylinder, a fixing groove formed inside the fixing block, a moving block sleeved inside the fixing groove, and a surface at the bottom of the moving block... The moving block has an insertion slot on its surface. An insertion rod is fixedly installed on the bottom surface of the fixed slot. Sliding grooves are formed on both sides of the moving block. A slider is fitted inside the sliding groove. A limit plate is fixedly installed at the rear end of the slider. A moving rod is fixedly installed at the rear end of the limit plate. A spring is fitted on the outer surface of the moving rod. A clamping block is fixedly installed at the rear end of the moving rod. A pressing rod is fixedly installed at the top of the moving block. A spring is fitted on the outer surface of the pressing rod. A fixing rod is fixedly installed on the surface of the clamping block. A spring is fitted on the outer surface of the fixing rod. A cutter is fitted inside the clamping block.

[0006] Preferably, the number of moving blocks is two sets, symmetrically distributed inside the fixed groove, and the moving blocks are polygonal in shape. Here, the two sets of symmetrically distributed moving blocks improve the stability and balance of the cutting process. The polygonal moving blocks move more stably within the fixed groove, are less prone to rotation, and ensure the accuracy of the cutting operation.

[0007] Preferably, the number of fixing rods is eight, arranged in an array on the surface of the clamping block. Each fixing rod is fitted inside a fixing groove. One end of the third spring is fixedly connected to the surface of the fixing rod, and the other end of the third spring is fixedly connected to the surface of the fixing groove. Here, the eight arrayed fixing rods provide uniform support force to the clamping block, enabling it to firmly grip the cutter. The third spring connects the fixing rods and the fixing groove, providing elastic restoring force to the clamping block, ensuring the stability of the cutter during operation, and also facilitating cutter replacement and maintenance.

[0008] Preferably, one end of the first spring is fixedly connected to the surface of the limiting plate, and the other end of the first spring is fixedly connected to the surface of the fixing groove. Here, the first spring connects the limiting plate and the fixing groove, providing elastic restoring force to the moving rod, so that the clamping block can tightly clamp the cutter, ensuring the force and stability of the cutting operation.

[0009] Preferably, the slider is T-shaped, the insertion rod is inserted into the insertion slot, and there are two sets of grooves and observation windows symmetrically distributed on the surface of the machine body. Here, the T-shaped slider moves more stably within the groove, preventing it from dislodging. The insertion rod, inserted into the groove, provides guidance and limitation for the moving block, ensuring accurate movement trajectory. The two sets of symmetrically distributed grooves and observation windows facilitate observation of the internal workings of the equipment from different angles, improving operational safety and accuracy.

[0010] Preferably, a collection groove is formed through the interior of the machine body, and a filter screen is placed at the surface of the collection groove. A sliding groove is formed at the bottom of the machine body, and a second motor is fixed to the surface of the machine body. A forward and reverse lead screw is fixedly installed at the output end of the second motor, and a clamping block is threaded to the outer surface of the forward and reverse lead screw. A collection box is fitted at the surface of the clamping block. Here, the collection groove is used to collect waste generated during the cutting process. The filter screen can filter impurities in the waste, preventing impurities from entering the collection box and affecting subsequent processing. The second motor drives the forward and reverse lead screw, which moves the clamping block, thereby clamping and releasing the collection box, facilitating the installation and removal of the collection box. The collection box is used to collect waste and maintain a clean working environment.

[0011] Preferably, the filter screen and the collection tank are fixedly connected by bolts, and a limiting rod is fixedly installed on the surface of the sliding groove, with the limiting rod sleeved inside the clamping block. Here, the filter screen is fixedly connected to the collection tank by bolts, facilitating disassembly and cleaning. The limiting rod sleeved inside the clamping block provides guidance and limitation for the movement of the clamping block, ensuring the accuracy of the movement trajectory of the clamping block and improving the stability of the collection box installation and disassembly.

[0012] Preferably, the side surface of the clamping block is provided with anti-slip texture, which is distributed in an array on the surface of the clamping block. Here, the anti-slip texture on the side surface of the clamping block increases the friction between the clamping block and the collection box, making the collection box more stable during clamping and less prone to loosening, thus ensuring the reliability of waste collection.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting up a structure consisting of a machine body, a motor, a driving rod, a driven rod, a conveyor belt, a groove, an observation window, a hydraulic cylinder, a fixing block, a fixing groove, a moving block, an insertion groove, and an insertion rod, the coordinated movement of multiple structures during equipment use enables quick blade replacement without consuming a large amount of time and manpower, thus avoiding impact on production efficiency. Furthermore, by setting up a quick and simple blade replacement mechanism, operators do not need high technical skills or extensive experience to complete the blade replacement operation, thereby avoiding disruption to the overall production schedule and effectively preventing energy waste and increased production costs.

[0015] 2. In this utility model, by setting up a collection trough, filter screen, sliding trough, motor, positive and negative lead screws, clamping block, and collection box structure, the multiple structures work together to collect the waste generated during the cutting process when the operator uses the equipment. At the same time, the filter screen can filter out impurities in the waste, preventing impurities from entering the collection box and affecting subsequent processing. By setting up the motor, positive and negative lead screws, clamping block, and collection box structure, the installation and disassembly of the collection box can be facilitated. The collection box is used to collect waste and maintain the cleanliness of the working environment. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a cutting machine for photovoltaic string welding is provided for this utility model;

[0017] Figure 2 This utility model provides a schematic diagram of the rear structure of a cutting machine for photovoltaic string welding;

[0018] Figure 3 This utility model provides an exploded structural diagram of a cutting machine for photovoltaic string welding;

[0019] Figure 4 This utility model provides a schematic diagram of the side end structure of a cutting machine for photovoltaic string welding;

[0020] Figure 5 This utility model provides an exploded view of part of the structure of a cutting machine for photovoltaic string welding;

[0021] Figure 6 This utility model provides a partial structural schematic diagram of a cutting machine for photovoltaic string welding;

[0022] Figure 7 This utility model proposes a cutting machine for photovoltaic string welding. Figure 5 Enlarged view of point A in the middle;

[0023] Figure 8 This utility model presents a schematic diagram of the filter screen structure of a cutting machine for photovoltaic string welding.

[0024] Legend:

[0025] 1. Machine body; 2. Motor 1; 3. Driving rod; 4. Driven rod; 5. Conveyor belt; 6. Groove; 7. Observation window; 8. Hydraulic cylinder; 9. Fixing block; 10. Fixing groove; 11. Moving block; 12. Insertion groove; 13. Insertion rod; 14. Slide groove; 15. Sliding block; 16. Limiting plate; 17. Moving rod; 18. Spring 1; 19. Clamping block; 20. Pressing rod; 21. Spring 2; 22. Fixing rod; 23. Spring 3; 24. Cutter; 25. Collection groove; 26. Filter screen; 27. Sliding groove; 28. Motor 2; 29. ​​Positive and negative lead screws; 30. Clamping block; 31. Collection box; 32. Limiting rod; 33. Anti-slip texture. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Example 1

[0029] Please see Figures 1-7This utility model provides a technical solution: a cutting machine for photovoltaic string welding, including a body 1, a motor 2 fixed to the surface of the body 1, a drive rod 3 fixedly installed at the output end of the motor 2, a driven rod 4 sleeved inside the body 1, a conveyor belt 5 sleeved on the outer surface of the drive rod 3 and the driven rod 4, a groove 6 formed on the surface of the body 1, an observation window 7 fixedly installed inside the groove 6, a hydraulic cylinder 8 fixed to the top of the body 1, a fixing block 9 fixedly installed at the output end of the hydraulic cylinder 8, a fixing groove 10 formed inside the fixing block 9, a moving block 11 sleeved inside the fixing groove 10, an insertion groove 12 formed on the bottom surface of the moving block 11, an insertion rod 13 fixedly installed on the bottom surface of the fixing groove 10, and sliding grooves 14 formed on both sides of the moving block 11. A slider 15 is fitted inside the chute 14. A limit plate 16 is fixedly installed at the rear end of the slider 15. A moving rod 17 is fixedly installed at the rear end of the limit plate 16. A spring 18 is fitted on the outer surface of the moving rod 17. A clamping block 19 is fixedly installed at the rear end of the moving rod 17. A pressing rod 20 is fixedly installed at the top of the moving block 11. A spring 21 is fitted on the outer surface of the pressing rod 20. A fixing rod 22 is fixedly installed on the surface of the clamping block 19. A spring 23 is fitted on the outer surface of the fixing rod 22. A cutter 24 is fitted inside the clamping block 19. First, the motor 2 fixed on the surface of the machine body 1 is started. The output end of the motor 2 drives the driving rod 3 to rotate. The driving rod 3 drives the driven rod 4 to rotate through the conveyor belt 5 fitted on the outer surface, thereby realizing the conveying of materials on the conveyor belt 5. An observation window 7 is fixedly installed in the groove 6 opened on the surface of the machine body 1, which allows the operator to observe the working condition inside the equipment. When the material is conveyed to the designated position, the hydraulic cylinder 8 at the top of the machine body 1 is activated. The output end of the hydraulic cylinder 8 pushes the fixing block 9 to move downward. A movable block 11 is fitted into a fixed groove 10 inside the fixed block 9. An insertion rod 13 on the bottom surface of the fixed groove 10 is inserted into an insertion groove 12 on the bottom surface of the movable block 11, providing guidance for the movable block 11. Next, by pressing the push rod 20 at the top of the movable block 11, the spring 21 on the outer surface of the push rod 20 is compressed. The push rod 20 pushes the movable block 11 to move within the fixed groove 10, and the sliders 15 fitted into the sliding grooves 14 on both sides of the movable block 11 move accordingly. The limiting plate 16 at the rear end of the slider 15 drives the movable rod 17 and the clamping block 19 at the rear end to move, stretching the spring 18 on the outer surface of the movable rod 17. During the movement, the spring 23 on the outer surface of the fixed rod 22, which is fixedly mounted on the surface of the clamping block 19, is also stretched. At this time, the cutter 24 is placed inside the clamping block 19. After releasing the push lever 20, the clamping block 19 clamps the cutter 24 under the action of springs 21, 18, and 23. Finally, under the continuous push of the hydraulic cylinder 8, the cutter 24 cuts the photovoltaic strings on the conveyor belt 5. Throughout the process, the various components cooperate with each other to achieve accurate and efficient cutting of the photovoltaic strings.

[0030] Please see Figures 1-7The number of movable blocks 11 is two sets, symmetrically distributed inside the fixed groove 10. The movable blocks 11 are polygonal in shape. The number of fixed rods 22 is eight sets, arrayed on the surface of the clamping block 19. The fixed rods 22 are fitted inside the fixed groove 10. One end of spring 3 23 is fixedly connected to the surface of the fixed rod 22, and the other end of spring 3 23 is fixedly connected to the surface of the fixed groove 10. One end of spring 18 is fixedly connected to the surface of the limiting plate 16, and the other end of spring 18 is fixedly connected to the surface of the fixed groove 10. The slider 15 is T-shaped. Insertion rod 13 is inserted into insertion slot 12. There are two sets of grooves 6 and observation windows 7, which are symmetrically distributed on the surface of the body 1. Filter screen 26 is fixedly connected to collection slot 25 by bolts. Limiting rod 32 is fixedly installed on the surface of sliding slot 27. Limiting rod 32 is sleeved inside clamping block 30. Anti-slip texture 33 is provided on the side surface of clamping block 30. Anti-slip texture 33 is distributed in an array on the surface of clamping block 30. By setting anti-slip texture 33, the fixing effect of collection box 31 can be improved, and the collection box 31 can be prevented from loosening during the operation of the equipment.

[0031] Example 2

[0032] Please see Figure 8 The machine body 1 has a through-hole collection groove 25. A filter screen 26 is placed at the surface of the collection groove 25. A sliding groove 27 is provided at the bottom of the machine body 1. A second motor 28 is fixed to the surface of the machine body 1. A positive and negative lead screw 29 is fixedly installed at the output end of the second motor 28. A clamping block 30 is threaded to the outer surface of the positive and negative lead screw 29. A collection box 31 is fitted at the surface of the clamping block 30. During the photovoltaic string welding and cutting process, the waste generated will fall into the through-hole collection groove 25 inside the machine body 1. The filter screen 26 placed at the surface of the collection groove 25 filters the waste and isolates larger impurities. When the second motor 28 fixed to the surface of the machine body 1 is started, the output end of the second motor 28 drives the positive and negative lead screw 29 to rotate. The clamping block 30 threaded to the outer surface of the positive and negative lead screw 29 moves along the sliding groove 27 at the bottom of the machine body 1 under the action of the positive and negative lead screw 29. When the collection box 31 needs to be installed, the forward and reverse screws 29 are rotated to separate the clamping blocks 30 to both sides, allowing the collection box 31 to fit onto the surface of the clamping blocks 30. Then, the forward and reverse screws 29 are reversed to clamp the collection box 31 tightly, thus fixing its position. The collection box 31 collects waste material that falls from the collection trough 25 and passes through the filter screen 26 for subsequent centralized processing.

[0033] Working Principle: During operation, the motor 2 fixed to the surface of the machine body 1 is first started. The output of motor 2 drives the drive rod 3 to rotate, which in turn drives the driven rod 4 to rotate via the conveyor belt 5 on its outer surface, thus conveying the material on the conveyor belt 5. An observation window 7 is fixedly installed in the groove 6 on the surface of the machine body 1, allowing operators to observe the internal workings of the equipment. When the material is conveyed to the designated position, the hydraulic cylinder 8 at the top of the machine body 1 is activated, and its output pushes the fixed block 9 downwards. A moving block 11 is fitted into the fixed groove 10 inside the fixed block 9. The insertion rod 13 on the bottom surface of the fixed groove 10 is inserted into the insertion groove 12 on the bottom surface of the moving block 11, providing guidance for the moving block 11. Next, by pressing the push rod 20 at the top of the moving block 11, the spring 21 on the outer surface of the push rod 20 is compressed. The push lever 20 moves the moving block 11 within the fixed groove 10. The sliders 15, fitted within the sliding grooves 14 on both sides of the moving block 11, move accordingly. The limiting plate 16 at the rear end of the slider 15 drives the moving rod 17 and the clamping block 19 at the rear end to move, stretching the spring 18 on the outer surface of the moving rod 17. During the movement, the spring 23 on the outer surface of the fixed rod 22, which is fixedly mounted on the surface of the clamping block 19, is also stretched. At this time, the cutter 24 is placed inside the clamping block 19. After releasing the push lever 20, the clamping block 19 clamps the cutter 24 under the action of the springs 21, 18, and 23. Finally, under the continuous push of the hydraulic cylinder 8, the cutter 24 cuts the photovoltaic strings on the conveyor belt 5. Throughout the process, the components cooperate to achieve accurate and efficient cutting of the photovoltaic strings. Then, during the photovoltaic string cutting process, the waste generated falls into the collection groove 25 that runs through the machine body 1. The filter screen 26, placed at the contact point on the surface of the collection tank 25, filters the waste material, isolating larger impurities. The motor 28, fixed to the surface of the machine body 1, is started, and its output drives the forward and reverse lead screw 29 to rotate. The clamping block 30, threaded to the outer surface of the forward and reverse lead screw 29, moves along the sliding groove 27 at the bottom of the machine body 1 under the action of the lead screw 29. When it is necessary to install the collection box 31, the forward and reverse lead screw 29 is rotated to separate the clamping block 30 to both sides, allowing the collection box 31 to fit onto the contact point on the surface of the clamping block 30. Then, the forward and reverse lead screw 29 is reversed to clamp the collection box 31, thus fixing its position. The collection box 31 collects the waste material that falls from the collection tank 25 and has been filtered by the filter screen 26 for subsequent centralized processing.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A cutting machine for photovoltaic string welding, comprising a machine body (1), characterized in that: A motor (2) is fixed to the surface of the machine body (1). A drive rod (3) is fixedly installed at the output end of the motor (2). A driven rod (4) is sleeved inside the machine body (1). A conveyor belt (5) is sleeved on the outer surface of the drive rod (3) and the driven rod (4). A groove (6) is opened on the surface of the machine body (1). An observation window (7) is fixedly installed inside the groove (6). A hydraulic cylinder (8) is fixed to the top of the machine body (1). A fixing block (9) is fixedly installed at the output end of the hydraulic cylinder (8). A fixing groove (10) is opened inside the fixing block (9). A moving block (11) is sleeved inside the fixing groove (10). An insertion groove (12) is opened on the bottom surface of the moving block (11). A conveyor belt (5) is fixedly installed on the bottom surface of the fixing groove (10). Insert rod (13), the two sides of the movable block (11) are provided with sliding grooves (14), the sliding grooves (14) are provided with a slider (15), the rear end of the slider (15) is fixedly installed with a limiting plate (16), the rear end of the limiting plate (16) is fixedly installed with a movable rod (17), the outer surface of the movable rod (17) is provided with a spring (18), the rear end of the movable rod (17) is fixedly installed with a clamping block (19), the top end of the movable block (11) is fixedly installed with a pressing rod (20), the outer surface of the pressing rod (20) is provided with a spring (21), the surface of the clamping block (19) is fixedly installed with a fixing rod (22), the outer surface of the fixing rod (22) is provided with a spring (23), and the inside of the clamping block (19) is provided with a cutter (24).

2. The photovoltaic string welding cutting machine according to claim 1, characterized in that: The number of the moving blocks (11) is two sets and they are symmetrically distributed inside the fixed slot (10). The shape of the moving blocks (11) is polygonal.

3. The photovoltaic string welding cutting machine according to claim 1, characterized in that: The number of fixed rods (22) is eight and they are arranged in an array on the surface of the clamping block (19). The fixed rods (22) are sleeved inside the fixed groove (10). One end of the spring three (23) is fixedly connected to the surface of the fixed rod (22), and the other end of the spring three (23) is fixedly connected to the surface of the fixed groove (10).

4. The photovoltaic string welding cutting machine according to claim 1, characterized in that: One end of the spring (18) is fixedly connected to the surface of the limiting plate (16), and the other end of the spring (18) is fixedly connected to the surface of the fixing groove (10).

5. A cutting machine for photovoltaic string welding according to claim 1, characterized in that: The slider (15) is T-shaped, the insertion rod (13) is inserted into the insertion slot (12), and the number of the groove (6) and the observation window (7) are two sets and are symmetrically distributed on the surface of the body (1).

6. A cutting machine for photovoltaic string welding according to claim 1, characterized in that: The inside of the body (1) is provided with a collection groove (25), and a filter screen (26) is placed at the surface of the collection groove (25). A sliding groove (27) is provided at the bottom of the body (1). A motor (28) is fixed on the surface of the body (1). A positive and negative lead screw (29) is fixedly installed at the output end of the motor (28). A clamping block (30) is threaded on the outer surface of the positive and negative lead screw (29). A collection box (31) is fitted at the surface of the clamping block (30).

7. A cutting machine for photovoltaic string welding according to claim 6, characterized in that: The filter screen (26) and the collection tank (25) are fixedly connected by bolts. A limiting rod (32) is fixedly installed on the surface of the sliding groove (27), and the limiting rod (32) is sleeved inside the clamping block (30).

8. A cutting machine for photovoltaic string welding according to claim 6, characterized in that: The side surface of the clamping block (30) is provided with anti-slip texture (33), and the anti-slip texture (33) is distributed in an array on the surface of the clamping block (30).