A strip shaping mechanism for a string welding machine

Abstract

This utility model discloses a strip shaping mechanism for a string welding machine, relating to the field of string welding machine technology. It includes a processing table, with a stretching structure and a flattening structure above the processing table. The stretching structure is located on one side of the flattening structure and includes a fixed clamping structure and a movable clamping structure. A movable structure is located inside the processing table, and the movable clamping structure is slidably positioned above the processing table via the movable structure. The flattening structure includes a mounting frame and a lower pressure block. A fixed plate is fixedly connected to the inner wall of the mounting frame, and an upper flattening head structure is movably connected within the fixed plate. By adopting a stretching-then-flattening sequence, the strip is effectively prevented from tipping over during flattening, reducing shaping position deviation. The stretching process first straightens and sets the length of the strip, providing a stable foundation for flattening and ensuring the strip adheres to the battery cell during subsequent welding, reducing the defect rate. The height of the pressure bar can be flexibly adjusted by rotating the nut to adapt to the shaping requirements of strips of different thicknesses.

Description

Technical Field

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

[0002] In the photovoltaic module manufacturing process, the string welding machine is a key piece of equipment that welds the solder ribbon to the solar cells to achieve series connection of the cells. Among them, the performance of the solder ribbon shaping mechanism plays a decisive role in welding quality and production efficiency. Good solder ribbon shaping can ensure precise bonding between the solder ribbon and the solar cell, improve the reliability and stability of the welding, and thus enhance the overall performance and lifespan of the photovoltaic module.

[0003] Currently, some string welding machines typically flatten the welding strip before stretching it during the shaping process. This method, lacking effective limiting and stabilizing measures, makes the welding strip prone to tipping over during flattening, leading to deviations in the shaping position. This not only affects the accuracy of subsequent stretching processes but also reduces overall shaping efficiency, increases the yield of defective products, and makes it difficult to meet the demands of large-scale, high-quality photovoltaic module production. Utility Model Content

[0004] The purpose of this utility model is to provide a strip shaping mechanism for a string welding machine, which solves the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a strip shaping mechanism for a string welding machine, comprising a processing table, a stretching structure and a flattening structure being provided above the processing table, the stretching structure being provided on one side of the flattening structure, the stretching structure comprising a fixed clamping structure and a movable clamping structure, a movable structure being provided inside the processing table, the movable clamping structure being slidably disposed above the processing table via the movable structure;

[0006] The flattening structure includes a mounting frame and a lower pressing block. A fixing plate is fixedly connected to the inner wall of the mounting frame, and an upper flattening head structure is movably connected inside the fixing plate. A push plate is slidably connected to the inner wall of the mounting frame, and a mounting plate is fixedly connected to one outer wall of the push plate. The upper flattening head structure is fixedly installed inside the mounting plate. A support frame is fixedly connected to the top outer wall of the mounting frame, and a driving structure is fixedly connected to the top outer wall of the support frame. The output end of the driving structure is fixedly connected to the push plate.

[0007] Preferably, the top outer wall of the processing table is provided with a sliding groove, the inner wall of the sliding groove is rotatably connected to a lead screw, and a motor is fixedly connected to one side outer wall of the processing table, the output end of the motor is connected to the lead screw.

[0008] Preferably, a movable block is fixedly connected to the bottom outer wall of the movable clamping structure, the outer wall of the movable block is slidably connected to the inner wall of the slide groove, and the outer wall of the lead screw is threadedly connected to the inner wall of the movable block.

[0009] Preferably, the upper flattened head structure includes a pressure rod, the outer wall of which is movably connected to the inner wall of the fixing plate, nuts are provided on the upper and lower sides of the mounting plate, the outer wall of the nuts is threadedly connected to the outer wall of the pressure rod, the pressure rod is connected and fixed to the mounting plate through the nuts, a spring is sleeved on the outer wall of the pressure rod, one end of the spring is fixedly connected to the top of the fixing plate, and an upper pressure block is detachably provided at the bottom end of the pressure rod.

[0010] Preferably, the inner wall of the fixing plate is provided with a circular hole for the pressure rod to move, and the top end of the pressure rod is inserted into the mounting plate.

[0011] Preferably, a fixed rod is fixedly connected to the top outer wall of the upper pressure block, and a movable sleeve is slidably connected to the outer wall of the fixed rod. Two movable sleeves are provided on the outer wall of each fixed rod, and a second spring is fixedly connected between the outer walls of the two movable sleeves. The second spring is sleeved on the outer wall of the fixed rod. Movable rods are movably connected to the outer walls of both the upper and lower movable sleeves, and the upper and lower movable rods on one side are movably connected.

[0012] Preferably, the outer walls on both sides of the pressure rod are provided with limiting grooves, and the movable rod is engaged in the limiting grooves.

[0013] Compared with related technologies, the welding strip shaping mechanism of the string welding machine provided by this utility model has the following beneficial effects:

[0014] 1. This utility model provides a strip shaping mechanism for a string welding machine, which changes the traditional method of flattening and then stretching. Instead, it adopts a stretching-then-flattening sequence, which effectively avoids the strip from tipping over during flattening, reduces the deviation in the shaping position, and straightens and sets the length of the strip in the stretching process to provide a stable foundation for flattening. This ensures that the strip adheres to the battery cell during subsequent welding and reduces the defect rate.

[0015] 2. This utility model provides a strip shaping mechanism for a string welding machine. By rotating the nut, the height of the pressure bar can be flexibly adjusted, and the distance between the upper and lower pressure blocks can be precisely controlled to adapt to the shaping requirements of strips of different thicknesses. During disassembly, the upper flattened head structure can be quickly disassembled simply by unscrewing the nut. The upper pressure block adopts a snap-on quick-disassembly structure. Through the engagement and disassembly of the movable rod and the limiting groove, the upper pressure block can be quickly installed and disassembled without additional tools, making it convenient for operators to replace the upper pressure block. Attached Figure Description

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

[0017] Figure 2This is a schematic diagram of the tension structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the flattened structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the flattened head structure of this utility model;

[0020] Figure 5 For the present utility model Figure 4 Enlarged view of point A in the middle.

[0021] In the diagram: 1. Machining table; 101. Slide groove; 102. Lead screw; 103. Motor; 2. Tensioning structure; 201. Fixed clamping structure; 202. Moving clamping structure; 2021. Moving block; 3. Flattening structure; 301. Mounting bracket; 302. Fixed plate; 303. Upper flattening head structure; 3031. Pressure rod; 3032. Nut; 3033. Spring 1; 3034. Limiting groove; 3035. Upper pressure block; 3036. Fixed rod; 3037. Movable sleeve; 3038. Movable rod; 3039. Spring 2; 304. Push plate; 305. Mounting plate; 306. Support frame; 307. Drive structure; 308. Lower pressure block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] Please see Figures 1-5 This utility model provides a technical solution: a strip shaping mechanism for a string welding machine, including a processing table 1, a stretching structure 2 and a flattening structure 3 are provided above the processing table 1, the stretching structure 2 is provided on one side of the flattening structure 3, the stretching structure 2 includes a fixed clamping structure 201 and a movable clamping structure 202, a movable structure is provided inside the processing table 1, and the movable clamping structure 202 is slidably disposed above the processing table 1 through the movable structure;

[0025] The flattening structure 3 includes a mounting frame 301 and a lower pressing block 308. A fixing plate 302 is fixedly connected to the inner wall of the mounting frame 301. An upper flattening head structure 303 is movably connected inside the fixing plate 302. A push plate 304 is slidably connected to the inner wall of the mounting frame 301. A mounting plate 305 is fixedly connected to one side of the outer wall of the push plate 304. The upper flattening head structure 303 is fixedly installed inside the mounting plate 305. A support frame 306 is fixedly connected to the top outer wall of the mounting frame 301. A drive structure 307 is fixedly connected to the top outer wall of the support frame 306. The output end of the drive structure 307 is fixedly connected to the push plate 304.

[0026] The top outer wall of the processing table 1 is provided with a slide groove 101, and the inner wall of the slide groove 101 is rotatably connected to a lead screw 102. A motor 103 is fixedly connected to one side outer wall of the processing table 1, and the output end of the motor 103 is connected to the lead screw 102. A moving block 2021 is fixedly connected to the bottom outer wall of the movable clamping structure 202. The outer wall of the moving block 2021 is slidably connected to the inner wall of the slide groove 101, and the outer wall of the lead screw 102 is threadedly connected to the inner wall of the moving block 2021.

[0027] In this embodiment, one end of the welding strip is fixed to the fixed clamping structure 201, and the other end is fixed to the movable clamping structure 202. The motor 103 is started, and the lead screw 102 drives the movable clamping structure 202 to move away from the fixed clamping structure 201, applying tension to the welding strip and eliminating the bending or wrinkling of the welding strip.

[0028] Example 2:

[0029] Please see Figures 3-5 Based on Embodiment 1, this utility model provides a technical solution: the drive structure 307 (usually a cylinder, hydraulic cylinder or electric push rod) provides a vertically downward driving force. The drive structure 307 drives the push plate 304 to slide vertically along the inner wall of the mounting bracket 301, and drives the mounting plate 305 and the upper flattening head structure 303 to move synchronously. The upper pressure block 3035 cooperates with the lower pressure block 308 to apply pressure to the stretched welding strip and flatten it to a predetermined thickness.

[0030] The upper flattened head structure 303 includes a pressure rod 3031. The outer wall of the pressure rod 3031 is movably connected to the inner wall of the fixing plate 302. Nuts 3032 are provided on the upper and lower sides of the mounting plate 305. The outer wall of the nut 3032 is threadedly connected to the outer wall of the pressure rod 3031. The pressure rod 3031 is connected and fixed to the mounting plate 305 through the nut 3032. A spring 3033 is sleeved on the outer wall of the pressure rod 3031. One end of the spring 3033 is fixedly connected to the top of the fixing plate 302. An upper pressure block 3035 is detachably provided at the bottom end of the pressure rod 3031.

[0031] The inner wall of the fixed plate 302 has a circular hole for the pressure rod 3031 to move. The top end of the pressure rod 3031 is inserted into the mounting plate 305. The top outer wall of the upper pressure block 3035 is fixedly connected to a fixed rod 3036. The outer wall of the fixed rod 3036 is slidably connected to a movable sleeve 3037. Each fixed rod 3036 has two movable sleeves 3037 on its outer wall. A second spring 3039 is fixedly connected between the outer walls of the two movable sleeves 3037. The second spring 3039 is sleeved on the outer wall of the fixed rod 3036. Movable rods 3038 are movably connected to the outer walls of both sides of the upper and lower movable sleeves 3037. The upper and lower movable rods 3038 on one side are movably connected. Limit grooves 3034 are opened on both sides of the outer wall of the pressure rod 3031. The movable rods 3038 are engaged in the limit grooves 3034.

[0032] In this embodiment, the upper pressure block 3035 is inserted into the pressure rod 3031 via the fixing rod 3036. The movable rod 3038 is pressed towards the center, causing the two movable sleeves 3037 to move to both sides, facilitating the insertion of the fixing rod 3036 into the pressure rod 3031. When the movable rod 3038 encounters the limiting groove 3034, the limited movable rod 3038 opens and inserts into the limiting groove 3034, fixing the upper pressure block 3035 within the pressure rod 3031. When it is necessary to remove the upper pressure block 3035, the movable rods 3038 on both sides are pressed towards the inside of the pressure rod 3031, causing it to disengage from the limiting groove 3034, making it easy to remove the upper pressure block 3035. The pressure rod 3031 can be easily adjusted by rotating the nut 3032, thereby adjusting the distance between the upper pressure block 3035 and the lower pressure block 308. The upper flattened head structure 303 can be easily disassembled by unscrewing the two nuts 3032 on the pressure rod 3031.

[0033] Working principle: The fixed clamping structure 201 is installed above the processing table 1 to clamp one end of the welding strip. The movable clamping structure 202 is connected to the lead screw 102 inside the processing table 1 via the movable block 2021 at the bottom, and can move horizontally along the slide groove 101. The motor 103 drives the lead screw 102 to rotate, causing the movable block 2021 to slide linearly along the slide groove 101, thereby moving the movable clamping structure 202 closer to or away from the fixed clamping structure 201. When one end of the welding strip is fixed to the fixed clamping structure 201 and the other end is fixed to the movable clamping structure 202, the motor 103 is started, and the lead screw 102 drives the movable clamping structure 202 to move away from the fixed clamping structure 201, applying tension to the welding strip. The drive structure 307 provides a vertically downward driving force. The drive structure 307 drives the push plate 304 to slide vertically along the inner wall of the mounting bracket 301, and drives the mounting plate 305 and the upper flattening head structure 303 to move synchronously. When the push plate 304 is pressed down, the spring 3033 is compressed and stores force to provide a buffering effect. The upper pressure block 3035 cooperates with the lower pressure block 308 to apply pressure to the stretched welding strip and flatten it to the predetermined thickness. After the shaping is completed, the drive structure 307 retracts and the push plate 304 moves upward.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A strip bonding machine strip shaping mechanism comprising a processing table (1), characterized in that: A stretching structure (2) and a flattening structure (3) are provided above the processing table (1). The stretching structure (2) is located on one side of the flattening structure (3). The stretching structure (2) includes a fixed clamping structure (201) and a movable clamping structure (202). A movable structure is provided inside the processing table (1). The movable clamping structure (202) is slidably located above the processing table (1) through the movable structure. The flattening structure (3) includes a mounting frame (301) and a lower pressing block (308). A fixing plate (302) is fixedly connected to the inner wall of the mounting frame (301). An upper flattening head structure (303) is movably connected inside the fixing plate (302). A push plate (304) is slidably connected to the inner wall of the mounting frame (301). A mounting plate (305) is fixedly connected to one side of the outer wall of the push plate (304). The upper flattening head structure (303) is fixedly installed inside the mounting plate (305). A support frame (306) is fixedly connected to the top outer wall of the mounting frame (301). A driving structure (307) is fixedly connected to the top outer wall of the support frame (306). The output end of the driving structure (307) is fixedly connected to the push plate (304).

2. The strip bonding machine strip bonding mechanism of claim 1, wherein: The top outer wall of the processing table (1) is provided with a slide groove (101), and the inner wall of the slide groove (101) is rotatably connected to a lead screw (102). A motor (103) is fixedly connected to one side outer wall of the processing table (1), and the output end of the motor (103) is connected to the lead screw (102).

3. The strip bonding machine strip bonding mechanism of claim 2, wherein: The bottom outer wall of the movable clamping structure (202) is fixedly connected to a movable block (2021), the outer wall of the movable block (2021) is slidably connected to the inner wall of the slide groove (101), and the outer wall of the lead screw (102) is threadedly connected to the inner wall of the movable block (2021).

4. The strip bonding machine strip bonding mechanism of claim 1, wherein: The flattened head structure (303) includes a pressure rod (3031), the outer wall of the pressure rod (3031) is movably connected to the inner wall of the fixing plate (302), nuts (3032) are provided on the upper and lower sides of the mounting plate (305), the outer wall of the nut (3032) is threadedly connected to the outer wall of the pressure rod (3031), the pressure rod (3031) is connected and fixed to the mounting plate (305) through the nut (3032), a spring (3033) is sleeved on the outer wall of the pressure rod (3031), one end of the spring (3033) is fixedly connected to the top of the fixing plate (302), and an upper pressure block (3035) is detachably provided at the bottom end of the pressure rod (3031).

5. The strip bonding machine strip bonding mechanism of claim 4, wherein: The inner wall of the fixing plate (302) is provided with a circular hole for the pressure rod (3031) to move, and the top end of the pressure rod (3031) is inserted into the mounting plate (305).

6. The strip bonding machine strip bonding mechanism of claim 5, wherein: The top outer wall of the upper pressure block (3035) is fixedly connected to a fixed rod (3036), and the outer wall of the fixed rod (3036) is slidably connected to a movable sleeve (3037). Each fixed rod (3036) has two movable sleeves (3037) on its outer wall. A second spring (3039) is fixedly connected between the outer walls of the two movable sleeves (3037). The second spring (3039) is sleeved on the outer wall of the fixed rod (3036). Movable rods (3038) are movably connected to the outer walls of both sides of the upper and lower movable sleeves (3037). The two upper and lower movable rods (3038) on one side are movably connected.

7. The strip bonding machine strip bonding mechanism of claim 6, wherein: The pressure rod (3031) has limit grooves (3034) on both outer walls, and the movable rod (3038) is engaged in the limit grooves (3034).

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