Air knife fine adjustment structure for tin plating of welding strip
By designing the XY axis displacement platform and height adjustment components in the welding tape coating equipment, the problem of low position accuracy of the existing equipment adjustment of the air knife is solved, and high-precision adjustment of the air knife in the plane and vertical directions is achieved, making the operation more convenient .
Patent Information
- Application Number
- CN202420522253.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-03-18
AI Technical Summary
When adjusting the position of the existing welding tape tin coating equipment, tools such as wrenches are required to be used, resulting in low adjustment accuracy and inconvenient use.
A fine-tuning structure for welding tape tin coating is designed, including an XY axis displacement platform and a height adjustment component. By manually rotating the X-axis and Y-axis micrometers to fine-tune the sliding table and spiral spinner, the wind knife is realized in the plane and vertical directions. Accurate adjustment.
It realizes high-precision adjustment of the position of the air knife, avoids the trouble of using wrench and other tools, and is more convenient to operate, and is suitable for welding tape of different specifications.
Smart Images
Figure CN222499317U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of welding strip processing, and in particular relates to an air knife fine-tuning structure for tinning a welding strip. Background Art
[0002] At present, the tin-coated copper strips (hereinafter referred to as soldering strips) used for photovoltaic cells are coated with tin using a hot-dip plating process. The copper wire enters the tin furnace from one end, is pulled vertically out after passing through the wire wheel, and then passes through an air knife. The air knife is connected to an external hose to introduce compressed gas. The blade of the air knife blows out the compressed gas evenly, evenly blowing down the tin coating on the surface of the soldering strip. The thickness of the tin layer on the surface of the soldering strip is accurately controlled by a compressed gas flow valve.
[0003] After the existing air knife is installed on the external tin coating machine, when facing solder strips of different specifications, the position of the air knife needs to be adjusted. When adjusting the position of the air knife, the existing equipment needs to use tools such as wrenches, which has low adjustment accuracy and is inconvenient to use. Summary of the invention
[0004] The utility model provides an air knife fine-tuning structure for tinning a solder strip, which aims to solve the problem that in the existing equipment, when adjusting the air knife position, tools such as wrenches are needed, the adjustment precision is low, and the use is inconvenient.
[0005] An embodiment of the utility model provides a wind knife fine-tuning structure for tinning a solder strip, comprising two symmetrically arranged device fixing brackets, wherein a wind knife fixing bracket is arranged below the two device fixing brackets, an XY axis displacement platform is arranged between the wind knife fixing bracket and the device fixing bracket, wind knives are rotatably installed on the two wind knife fixing brackets, a screw is also arranged on the wind knife fixing bracket, the upper end of the screw is connected to the wind knife fixing bracket through a height adjustment component, and a disassembly assembly component is arranged at the lower end of the screw, and the disassembly assembly component is detachably connected to the wind knife.
[0006] Furthermore, a square groove and a waist-shaped groove are provided on the wind knife fixing bracket, and the wind knife includes a knife head and a knife handle which are fixedly connected, one end of the knife handle is rotatably connected to the square groove, the lower end of the screw rod passes through the waist-shaped groove, and the screw rod is rotatably connected to the knife handle through a disassembly and assembly component.
[0007] By adopting the above technical solution, the setting of the waist-shaped groove facilitates the installation of the height adjustment component.
[0008] Furthermore, the height adjustment assembly includes a nut threadedly connected to the upper end of the screw and a sleeve arranged in a waist-shaped groove, the outer wall of the screw is slidably connected to the inner wall of the sleeve, an annular slider is fixedly connected to the top wall of the sleeve, and an annular groove is reserved on the bottom wall of the nut for slidingly engaging with the annular slider, a limiting slider 1 is fixedly connected to the outer wall of the sleeve, a limiting groove 1 is provided on the inner wall of the waist-shaped groove for slidingly engaging with the limiting slider 1, a limiting slider 2 is fixedly connected to the inner wall of the sleeve, and a limiting groove 2 is provided on the outer wall of the screw for slidingly engaging with the limiting slider 2.
[0009] By adopting the above technical solution, the XY-axis displacement platform includes an X-axis micrometer fine-tuning slide and a Y-axis micrometer fine-tuning slide, the X-axis micrometer fine-tuning slide and the Y-axis micrometer fine-tuning slide are fixedly connected, and the top of the X-axis micrometer fine-tuning slide is fixedly connected to the device fixing bracket, and the bottom of the Y-axis micrometer fine-tuning slide is fixedly connected to the wind knife fixing bracket, and the spiral fine-tuning devices on the X-axis micrometer fine-tuning slide and the Y-axis micrometer fine-tuning slide are manually rotated to drive the wind knife fixing bracket to move in the X-axis and Y-axis directions, thereby realizing the wind knife in the plane direction. Adjustment of position. When the height of the cutter head needs to be adjusted, manually turn the nut. Since the nut and the annular slider are embedded and slide, the screw moves up or down, and the lower end of the screw is rotatably connected to the cutter handle. With the cooperation of the limit slider and the limit slot, the kit moves horizontally in the waist-shaped slot accordingly, thereby changing the height of the cutter head and realizing the adjustment of the vertical position of the wind knife. In the process of adjusting the plane position and vertical position of the wind knife, there is no need to use tools such as wrenches, and the adjustment accuracy is high. It is easy to use and convenient for blowing tin on welding strips of different specifications.
[0010] It should be noted that the XY axis is represented by the spatial coordinate system in the figure, and the X-axis micrometer fine-tuning slide and the Y-axis micrometer fine-tuning slide both adopt the existing technology.
[0011] Furthermore, the nut is a plum blossom handle nut.
[0012] By adopting the above technical solution, it is convenient to manually rotate and adjust the height of the cutter head.
[0013] Furthermore, a through slot is provided on the knife handle, a rotating shaft is rotatably connected between two inner walls of the through slot, a circular slot is provided on the top wall of the rotating shaft, and two clamping slots are provided on the inner wall of the circular slot.
[0014] By adopting the above technical solution, the through groove is convenient for installing the rotating shaft, and the circular groove is convenient for installing and disassembling components.
[0015] Furthermore, the disassembly and assembly component includes a block fixedly connected to the bottom end of the screw rod, the lower end of the block is plugged into the circular groove, the block is a hollow structure, the upper end of the block is slidably connected to two push blocks, a spring is fixedly connected between the two push blocks, a connecting plate is fixedly connected to the bottom wall of each push block, the lower ends of the two connecting plates are fixedly connected to an insertion rod, the other end of the insertion rod passes through the side wall of the block and is plugged into the slot, and the knife handle is rotatably connected to the wind knife fixing bracket by a fastening bolt.
[0016] By adopting the above technical solution, when you want to disassemble the wind knife, press the two push blocks, and the push blocks drive the connecting plates and the plug rods on both sides to move toward each other, so that the plug rods move out of the slots. At this time, by turning the nut, under the limiting action of the limiting slider 2, the screw rod is moved up, so that one end of the wind knife is disassembled, and then the fastening bolt is removed from the wind knife fixing bracket, so as to realize the disassembly of the entire wind knife. When installing the wind knife, press the push block to insert the card block into the circular groove, and under the elastic action of the spring, the plug rod is engaged with the card slot to realize the installation of one end of the wind knife, and then the other end of the wind knife is installed to the wind knife fixing bracket by the fastening bolt, so as to realize the installation of the entire wind knife. The whole operation process is simple and quick, which is convenient for maintenance or replacement of the wind knife.
[0017] Furthermore, external threads are provided on the outer sides of both ends of the fastening bolt rod, internal thread grooves are provided on the two opposite inner walls of the square groove, a through hole is provided on the side wall of the knife handle, and the rod of the fastening bolt passes through the through hole on the knife handle and is threadedly connected to the internal thread groove.
[0018] By adopting the above technical solution, the threads on the outer sides of the two ends of the fastening bolt rod are convenient for tightening and fixing the knife handle, and at the same time, the non-threaded part in the middle of the fastening bolt rod is rotatably connected to the through hole opened on the knife handle, thereby fixing the knife handle and facilitating the rotation of the knife handle, and also facilitating the disassembly of the knife handle.
[0019] The beneficial effects of the utility model are:
[0020] 1. The utility model sets a height adjustment component, wherein the XY-axis displacement platform includes an X-axis micrometer fine-tuning slide and a Y-axis micrometer fine-tuning slide, the X-axis micrometer fine-tuning slide and the Y-axis micrometer fine-tuning slide are fixedly connected, and the top of the X-axis micrometer fine-tuning slide is fixedly connected to the device fixing bracket, and the bottom of the Y-axis micrometer fine-tuning slide is fixedly connected to the wind knife fixing bracket, and the spiral fine-tuning devices on the X-axis micrometer fine-tuning slide and the Y-axis micrometer fine-tuning slide are manually rotated, thereby driving the wind knife fixing bracket to move in the X-axis and Y-axis directions, thereby realizing the wind knife in the plane Adjustment of the surface direction position. When the height of the cutter head needs to be adjusted, manually turn the nut. Since the nut and the annular slider are embedded and slide, the screw moves up or down, and the lower end of the screw is rotatably connected to the cutter handle. With the cooperation of the limit slider and the limit slide groove, the kit moves horizontally in the waist-shaped groove accordingly, thereby changing the height of the cutter head and realizing the adjustment of the vertical position of the wind knife. In the process of adjusting the plane direction position and the vertical direction position of the wind knife, there is no need to use tools such as wrenches, and the adjustment accuracy is high. It is easy to use and convenient for blowing tin on welding strips of different specifications.
[0021] 2. The utility model provides a disassembly and assembly component. When the wind knife is to be disassembled, the two pressing blocks are pressed, and the pressing blocks drive the connecting plates and the plug rods on both sides to move toward each other, so that the plug rods are moved out of the slots. At this time, by rotating the nut, the screw rod is moved up under the limiting action of the limiting slider 2, so that one end of the wind knife is disassembled, and then the fastening bolt is removed from the wind knife fixing bracket, so that the entire wind knife is disassembled. When installing the wind knife, the pressing block is pressed to insert the card block into the circular groove, and the plug rod is engaged with the card slot under the elastic action of the spring, so that one end of the wind knife is installed, and then the other end of the wind knife is installed to the wind knife fixing bracket by the fastening bolt, so that the entire wind knife is installed. The whole operation process is simple and fast, and it is convenient for maintenance or replacement of the wind knife.
[0022] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0024] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;
[0025] Figure 2This is a schematic diagram of the front view of the wind knife fixing bracket, the wind knife and the height adjustment assembly of the embodiment of the utility model;
[0026] Figure 3 It is a schematic diagram of the cross-sectional front view of the wind knife fixing bracket, the screw rod and the height adjustment assembly of the embodiment of the utility model;
[0027] Figure 4 This is a schematic diagram of the top view of the wind knife according to an embodiment of the utility model;
[0028] Figure 5 This is a schematic diagram of the front cross-sectional structure of the disassembly and assembly components of an embodiment of the utility model;
[0029] Figure 6 This is a schematic diagram of the top view of the fastening bolt of an embodiment of the utility model;
[0030] : 1. device fixing bracket; 2. wind knife fixing bracket; 3. wind knife; 4. XY axis displacement platform; 5. welding strip; 6. screw; 7. height adjustment assembly; 8. disassembly and assembly assembly; 201. square groove; 202. waist-shaped groove; 301. knife head; 302. knife handle; 303. through groove; 304. rotating shaft; 305. circular groove; 701. nut; 702. kit; 703. annular slider; 704. limiting slide groove one; 705. limiting slide groove two; 801. block; 802. push block; 803. connecting plate; 804. plug rod; 805. fastening bolt. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] Reference Figure 1-6 The utility model embodiment proposes a wind knife fine-tuning structure for tinning a solder strip, comprising two symmetrically arranged device fixing brackets 1, and wind knife fixing brackets 2 are arranged below the two device fixing brackets 1. The wind knife fixing brackets 2 are provided with square grooves 201 and waist-shaped grooves 202. The wind knife 3 comprises a fixedly connected knife head 301 and a knife handle 302, one end of the knife handle 302 is rotatably connected to the square groove 201, the lower end of the screw rod 6 passes through the waist-shaped groove 202, and the screw rod 6 is rotatably connected to the knife handle 302 through the disassembly assembly component 8. The setting of the waist-shaped groove 202 facilitates the installation of the height adjustment component 7.
[0033] Reference Figure 1-3 An XY axis displacement platform 4 is arranged between the wind knife fixing bracket 2 and the device fixing bracket 1. Wind knives 3 are rotatably installed on the two wind knife fixing brackets 2. A screw rod 6 is also arranged on the wind knife fixing bracket 2. The upper end of the screw rod 6 is connected to the wind knife fixing bracket 2 through a height adjustment component 7. The height adjustment component 7 includes a nut 701 threadedly connected to the upper end of the screw rod 6 and a kit 702 arranged in a waist-shaped groove 202. The outer wall of the screw rod 6 is slidably connected to the inner wall of the kit 702. An annular slider 703 is fixedly connected to the top wall of the kit 702. The nut The bottom wall of 701 is reserved with an annular slide groove for sliding engagement with the annular slide block 703, the outer wall of the set 702 is fixedly connected with a limit slide block 1, the inner wall of the waist-shaped groove 202 is provided with a limit slide groove 1 704 for sliding engagement with the limit slide block 1, the inner wall of the set 702 is fixedly connected with a limit slide block 2 705, the outer wall of the screw 6 is provided with a limit slide groove 2 for sliding engagement with the limit slide block 2 705, the XY axis displacement platform 4 includes an X-axis micrometer fine-tuning slide and a Y-axis micrometer fine-tuning slide, the X-axis micrometer fine-tuning slide and the Y-axis micrometer fine-tuning slide The micrometer fine-tuning slides are fixedly connected, and the top of the X-axis micrometer fine-tuning slide is fixedly connected to the device fixed bracket 1, and the bottom of the Y-axis micrometer fine-tuning slide is fixedly connected to the wind knife fixed bracket 2. By manually rotating the spiral fine-tuning devices on the X-axis micrometer fine-tuning slide and the Y-axis micrometer fine-tuning slide, the wind knife fixed bracket 2 is driven to move in the X-axis and Y-axis directions, thereby realizing the adjustment of the position of the wind knife 3 in the plane direction. When it is necessary to adjust the height of the cutter head 301, the nut 701 is manually rotated. Due to the nut 701 and the annular slider 703 The embedded sliding makes the screw rod 6 move upward or downward, and the lower end of the screw rod 6 is rotatably connected to the knife handle 302. Under the cooperation of the limit slider 1 and the limit slide groove 1 704, the kit 702 moves horizontally in the waist-shaped groove 202 accordingly, thereby changing the height of the knife head 301 and realizing the adjustment of the vertical position of the wind knife 3. In the process of adjusting the plane direction position and the vertical direction position of the wind knife 3, there is no need to use tools such as wrenches, and the adjustment accuracy is high. It is easy to use and is convenient for blowing tin on solder strips 5 of different specifications. It should be noted that the XY axis is composed of Figure 1 As shown in the spatial coordinate system, the X-axis micrometer fine-tuning slide and the Y-axis micrometer fine-tuning slide both adopt the existing technology, and the nut 701 adopts a plum blossom handle nut, which is convenient for manual rotation to adjust the height of the tool head 301.
[0034] Reference Figure 3-6The lower end of the screw 6 is provided with a disassembly assembly 8, and the disassembly assembly 8 is detachably connected to the wind knife 3. A through groove 303 is provided on the knife handle 302, and a rotating shaft 304 is rotatably connected between the two inner walls of the through groove 303. A circular groove 305 is provided on the top wall of the rotating shaft 304, and two card grooves are provided on the inner wall of the circular groove 305. The through groove 303 is convenient for installing the rotating shaft 304, and the circular groove 305 is convenient for installing the disassembly assembly 8. The disassembly assembly 8 includes a card block 801 fixedly connected to the bottom end of the screw 6, the lower end of the card block 801 is plugged into the circular groove 305, the card block 801 is a hollow structure, and the upper end of the card block 801 slides There are two push blocks 802 connected, and a spring is fixedly connected between the two push blocks 802. A connecting plate 803 is fixedly connected to the bottom wall of each push block 802. The lower ends of the two connecting plates 803 are fixedly connected to a plug rod 804. The other end of the plug rod 804 penetrates the side wall of the card block 801 and is engaged with the card slot. The knife handle 302 is rotatably connected to the wind knife fixing bracket 2 by a fastening bolt 805. When the wind knife 3 needs to be disassembled, the two push blocks 802 are pressed, and the push blocks 802 drive the connecting plates 803 and the plug rod 804 on both sides to move toward each other, so that the plug rod 804 moves out of the card slot. At this time, by rotating The nut 701, under the limiting action of the limiting slider 705, makes the screw rod 6 move up, so that one end of the wind knife 3 is disassembled, and then the fastening bolt 805 is disassembled from the wind knife fixing bracket 2, so as to realize the overall disassembly of the wind knife 3. When installing the wind knife 3, the pressing block 802 is pressed to make the clamping block 801 insert into the circular groove 305, and the plug rod 804 is clamped with the clamping groove under the elastic action of the spring to realize the installation of one end of the wind knife 3, and then the other end of the wind knife 3 is installed to the wind knife fixing bracket 2 by the fastening bolt 805, so as to realize the overall installation of the wind knife 3. The whole operation process is simple, fast and convenient. To maintain or replace the wind knife 3, external threads are provided on the outer sides of both ends of the rod of the fastening bolt 805, internal thread grooves are provided on the two opposite inner walls of the square groove 201, and a through hole is provided on the side wall of the handle 302. The rod of the fastening bolt 805 passes through the through hole on the handle 302 and is threadedly connected with the internal thread groove. The threads on the outer sides of both ends of the rod of the fastening bolt 805 are convenient for tightening and fixing the handle 302. At the same time, the unthreaded part in the middle of the rod of the fastening bolt 805 is rotatably connected with the through hole provided on the handle 302, thereby fixing the handle 302 while facilitating the rotation of the handle 302 and facilitating the disassembly of the handle 302.
[0035] The specific implementation method is as follows: when in use, the entire fine-tuning structure is installed on an external tin coating machine, and the XY-axis displacement platform 4 includes an X-axis micrometer fine-tuning slide and a Y-axis micrometer fine-tuning slide, the X-axis micrometer fine-tuning slide and the Y-axis micrometer fine-tuning slide are fixedly connected, and the top of the X-axis micrometer fine-tuning slide is fixedly connected to the device fixed bracket 1, and the bottom of the Y-axis micrometer fine-tuning slide is fixedly connected to the wind knife fixed bracket 2. By manually rotating the spiral fine-tuning devices on the X-axis micrometer fine-tuning slide and the Y-axis micrometer fine-tuning slide, the wind knife fixed bracket 2 is driven to move in the X-axis and Y-axis directions, thereby realizing the adjustment of the position of the wind knife 3 in the plane direction. When the height of the cutter head 301 needs to be adjusted, the nut 701 is manually rotated. Since the nut 701 and the annular slider 703 are engaged and slid, the screw rod 6 moves upward or downward, and the lower end of the screw rod 6 is rotatably connected to the handle 302. Under the cooperation of the limiting slider 1 and the limiting slide groove 1 704, the kit 702 moves horizontally in the waist-shaped groove 202 accordingly, thereby changing the height of the cutter head 301 and realizing the adjustment of the vertical position of the wind knife 3. In the process of adjusting the plane direction position and the vertical direction position of the wind knife 3, there is no need to use tools such as wrenches, and the adjustment accuracy is high, and it is easy to use, which is convenient for blowing tin on welding strips of different specifications;
[0036] When you want to remove the wind knife 3, press the two pressing blocks 802, and the pressing blocks 802 drive the connecting plates 803 and the plug rod 804 on both sides to move toward each other, so that the plug rod 804 moves out of the slot. At this time, by rotating the nut 701, under the limiting action of the limiting slider 705, the screw rod 6 moves up, so that one end of the wind knife 3 is removed, and then the fastening bolt 805 is removed from the wind knife fixing bracket 2, thereby realizing the overall disassembly of the wind knife 3. When installing the wind knife 3, press the pressing block 802 to make the block 801 inserted into the circular groove 305, and under the elastic action of the spring, the plug rod 804 is engaged with the slot to realize the installation of one end of the wind knife 3, and then the other end of the wind knife 3 is installed to the wind knife fixing bracket 2 through the fastening bolt 805, thereby realizing the overall installation of the wind knife 3.
[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A wind knife fine-tuning structure for tinning a solder strip, comprising two symmetrically arranged device fixing brackets (1), characterized in that: A wind knife fixing bracket (2) is arranged below the two device fixing brackets (1); an XY axis displacement platform (4) is arranged between the wind knife fixing bracket (2) and the device fixing bracket (1); a wind knife (3) is rotatably mounted on the two wind knife fixing brackets (2); a screw rod (6) is also arranged on the wind knife fixing bracket (2); the upper end of the screw rod (6) is connected to the wind knife fixing bracket (2) via a height adjustment component (7); a disassembly component (8) is arranged at the lower end of the screw rod (6); and the disassembly component (8) is detachably connected to the wind knife (3).
2. The wind knife fine-tuning structure for tinning a solder strip according to claim 1, characterized in that: The wind knife fixing bracket (2) is provided with a square groove (201) and a waist-shaped groove (202); the wind knife (3) comprises a knife head (301) and a knife handle (302) which are fixedly connected; one end of the knife handle (302) is rotatably connected to the square groove (201); the lower end of the screw rod (6) passes through the waist-shaped groove (202); and the screw rod (6) is rotatably connected to the knife handle (302) via a disassembly assembly component (8).
3. The wind knife fine-tuning structure for tinning a solder strip according to claim 2, characterized in that: The height adjustment assembly (7) comprises a nut (701) threadedly connected to the upper end of the screw rod (6) and a sleeve (702) arranged in the waist-shaped groove (202); the outer wall of the screw rod (6) is slidably connected to the inner wall of the sleeve (702); an annular slider (703) is fixedly connected to the top wall of the sleeve (702); an annular slide groove for slidingly engaging with the annular slider (703) is reserved on the bottom wall of the nut (701); a limiting slider 1 is fixedly connected to the outer wall of the sleeve (702); a limiting slide groove 1 (704) for slidingly engaging with the limiting slider 1 is provided on the inner wall of the waist-shaped groove (202); a limiting slider 2 (705) is fixedly connected to the inner wall of the sleeve (702); a limiting slide groove 2 for slidingly engaging with the limiting slider 2 (705) is provided on the outer wall of the screw rod (6).
4. The wind knife fine-tuning structure for tinning a solder strip according to claim 3, characterized in that: The nut (701) is a plum blossom handle nut.
5. The wind knife fine-tuning structure for tinning a solder strip according to claim 3, characterized in that: The knife handle (302) is provided with a through slot (303), a rotating shaft (304) is rotatably connected between two inner walls of the through slot (303), a circular slot (305) is provided on the top wall of the rotating shaft (304), and two clamping slots are provided on the inner wall of the circular slot (305).
6. The wind knife fine-tuning structure for tinning a solder strip according to claim 5, characterized in that: The disassembly and assembly component (8) includes a clamping block (801) fixedly connected to the bottom end of the screw rod (6), the lower end of the clamping block (801) is plugged into the circular groove (305), the clamping block (801) is a hollow structure, the upper end of the clamping block (801) is slidably connected to two pressing blocks (802), a spring is fixedly connected between the two pressing blocks (802), a connecting plate (803) is fixedly connected to the bottom wall of each pressing block (802), the lower ends of the two connecting plates (803) are fixedly connected to an insertion rod (804), the other end of the insertion rod (804) passes through the side wall of the clamping block (801) and is clamped into the clamping groove, and the knife handle (302) is rotatably connected to the wind knife fixing bracket (2) through a fastening bolt (805).
7. The wind knife fine-tuning structure for tinning a solder strip according to claim 6, characterized in that: External threads are arranged on the outer sides of both ends of the rod of the fastening bolt (805); internal thread grooves are provided on the two opposite inner walls of the square groove (201); a through hole is provided on the side wall of the knife handle (302); the rod of the fastening bolt (805) passes through the through hole on the knife handle (302) and is threadedly connected to the internal thread groove.