A tin-spraying device for aluminum foil circuit board production and processing

Abstract

This invention provides a tin-plating device for aluminum foil circuit board production and processing, comprising: a mounting frame, a cross-shaped connecting frame on one side of the mounting frame, multiple rotating devices respectively disposed on one side of the cross-shaped connecting frame, a fixing component disposed inside the rotating devices, the rotating devices disposed at the center position on one side of the cross-shaped connecting frame, a spraying component disposed on the surface of the rotating devices, and a conveying device mounted on the surface of the mounting frame. This invention provides a tin-plating device for aluminum foil circuit board production and processing, in which a first motor with a U-shaped mounting frame is disposed on one side of the cross-shaped connecting frame, and the fixing component works in conjunction with the rotating devices, the spraying component, and the conveying device. After the aluminum foil circuit board is fixed to the device, it can directly and evenly perform tin-plating operations on both sides of the aluminum foil circuit board.

Description

Technical Field

[0001] This invention relates to the field of aluminum foil circuit board production, and more particularly to a tin-spraying device for aluminum foil circuit board production and processing. Background Technology

[0002] Tin-plated PCBs are a type of circuit board, and they are generally multi-layer, high-precision PCB prototypes. They are used by many large domestic communication, computer, medical equipment, aerospace and research companies. During the production and processing of tin-plated PCBs, a tin-plating device is used to tin-plat the upper surface of the tin-plated PCB, and a fixing frame is used to fix the tin-plated PCB during the tin-plating process.

[0003] The prior art patent application with publication number CN218830809U improves and optimizes the structure of the tin spraying device, enabling the tin spraying device to clamp and fix the tin spraying plate, thus stabilizing the tin spraying plate. This tin spraying device can also rotate the tin spraying plate, thereby facilitating the tin spraying equipment to quickly spray tin onto both sides of the tin spraying plate and improving the efficiency of tin spraying the surface of the tin spraying plate.

[0004] By improving and optimizing the structure of the card frame and pressure bar, the card plate and pressure bar can press and fix the tin-plating board, making it easy for the tin-plating board to be stable inside the card frame. The card frame can also be rotated under the drive of the motor, making it easy to turn the tin-plating board and tin-plating both sides of the tin-plating board.

[0005] However, the tin spraying device only serves to fix the aluminum foil circuit board during use. After the aluminum foil circuit board is installed, the entire device needs to be installed on the tin spraying equipment for tin spraying. It is not possible to perform the tin spraying operation directly after the aluminum foil circuit board is installed.

[0006] Therefore, it is necessary to provide a tin-spraying device for aluminum foil circuit board production and processing to solve the above-mentioned technical problems. Summary of the Invention

[0007] This invention provides a tin-spraying device for aluminum foil circuit board production and processing, which solves the problem that the tin-spraying device only serves to fix the aluminum foil circuit board during use, and the entire device needs to be installed on the tin-spraying equipment for tin-spraying operation, and it is not possible to perform the tin-spraying operation directly after the aluminum foil circuit board is installed.

[0008] To solve the above-mentioned technical problems, the present invention provides a tin-spraying device for aluminum foil circuit board production and processing, comprising:

[0009] Mounting bracket, one side of which is provided with a cross connecting bracket;

[0010] Multiple rotating devices are respectively disposed on one side of the cross connecting frame. Each rotating device includes a U-shaped mounting bracket. A first motor is mounted on one side of the cross connecting frame. One end of the output shaft of the first motor is connected to the center position of one side of the U-shaped mounting bracket via a coupling.

[0011] A fixing component, wherein the fixing component is disposed inside the U-shaped mounting bracket;

[0012] A rotating device is disposed at the center of one side of the cross connecting frame;

[0013] A spraying assembly is disposed on the surface of the rotating device;

[0014] A conveying device, which is mounted on the surface of the mounting frame.

[0015] Preferably, the fixing component includes two fixing seats, a threaded rod is provided between the two fixing seats, threaded sleeves are threadedly connected to both sides of the surface of the threaded rod, and a fixing plate is connected to the bottom of each of the two threaded sleeves through a connecting block.

[0016] Preferably, one end of the threaded rod is connected to a rotating handle via a rotating block.

[0017] Preferably, the bottom of the U-shaped mounting bracket is provided with a limiting component, the limiting component includes two connecting seats, a limiting rod is connected between the two connecting seats, and limiting sleeves are fitted on both sides of the surface of the limiting rod. The limiting sleeves are connected to the bottom of the fixing plate through connecting blocks.

[0018] Preferably, the rotating device includes a second motor, one end of the output shaft of the second motor is connected to a threaded connecting rod via a coupling, the surface of the threaded connecting rod is fitted with a threaded connecting sleeve, and the surface of the cross connecting frame and around the threaded connecting rod are connected with circular rods, the surface of the circular rods is fitted with movable sleeves, and a pull rod is connected between the movable sleeves and the threaded connecting sleeves.

[0019] Preferably, the spraying assembly includes multiple rectangular plates, each rectangular plate having a rectangular through groove on its surface, each rectangular through groove having an adjusting member inside, each adjusting member having a support rod connected to one side, each support rod having a spraying pipe connected to one end, each spraying pipe having a flexible hose connected to each other, and each spraying pipe having multiple spray holes on its surface.

[0020] Preferably, the conveying device includes a housing, a conveying pump is installed on the surface of the housing, the input and output ends of the conveying pump are connected to a connecting pipe, one end of one of the connecting pipes is connected to one of the flexible hoses, and a filling pipe is connected to one side of the housing.

[0021] Preferably, both the threaded connecting rod and the circular rod have a stop block connected to their ends.

[0022] Preferably, the surface of the mounting bracket is provided with a protective component, which includes a first protective cover and a second protective cover. A positioning block is connected to one side of the first protective cover, and a positioning groove adapted to the positioning block is opened at one end of the second protective cover. Rubber pads are adhered to the top and bottom of the inner wall of the positioning groove. A limit bolt is provided between the second protective cover and the positioning block. A transparent plate is connected to one side of both the first protective cover and the second protective cover.

[0023] Preferably, an adjustment assembly is provided between the mounting bracket and the cross connecting bracket. The adjustment assembly includes two rectangular connecting blocks, and a circular connecting rod is connected between the two rectangular connecting blocks. An adjustment sleeve is fitted on the surface of the circular connecting rod. A fixing ring is connected to one side of the adjustment sleeve through a connecting block. The fixing ring is connected to the mounting bracket. A rectangular mounting plate is connected between the two rectangular connecting blocks. A bolt is provided inside the adjustment sleeve. A plurality of threaded holes adapted to the bolt are opened on the surface of the circular connecting rod.

[0024] Compared with related technologies, the tin-spraying device for aluminum foil circuit board production and processing provided by the present invention has the following beneficial effects:

[0025] This invention provides a tin-spraying device for aluminum foil circuit board production and processing. A first motor with a U-shaped mounting bracket is provided on one side of the cross connecting frame. The device is used in conjunction with a fixing component, a rotating component, a spraying component, and a conveying device. After the aluminum foil circuit board is fixed on the device, the front and back sides of the aluminum foil circuit board can be directly and evenly tin-sprayed. Attached Figure Description

[0026] Figure 1 A schematic diagram of the first embodiment of a tin-spraying device for aluminum foil circuit board production and processing provided by the present invention;

[0027] Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below;

[0028] Figure 3 for Figure 1 A schematic diagram of the overall three-dimensional structure of the device shown;

[0029] Figure 4 for Figure 3 The enlarged schematic diagram of section B is shown below;

[0030] Figure 5 A schematic diagram of the second embodiment of a tin-spraying device for aluminum foil circuit board production and processing provided by the present invention;

[0031] Figure 6 for Figure 5 The enlarged schematic diagram of section C is shown below;

[0032] Figure 7 This is a schematic diagram of the third embodiment of a tin-spraying device for aluminum foil circuit board production and processing provided by the present invention.

[0033] The diagram is labeled: 1. Mounting bracket, 2. Cross connector bracket.

[0034] 3. Rotating device; 31. U-shaped mounting bracket; 32. First motor.

[0035] 4. Fixing components; 41. Fixing base; 42. Threaded rod; 43. Threaded sleeve; 44. Fixing plate; 45. Rotating handle.

[0036] 5. Limiting assembly; 51. Connecting seat; 52. Limiting rod; 53. Limiting sleeve.

[0037] 6. Rotating device; 61. Second motor; 62. Threaded connecting rod; 63. Threaded connecting sleeve; 64. Circular rod; 65. Moving sleeve; 66. Pulling rod.

[0038] 7. Spraying assembly; 71. Rectangular plate; 72. Rectangular through groove; 73. Adjusting component; 74. Support rod; 75. Spraying pipe; 76. Hose; 77. Spraying hole.

[0039] 8. Conveying device; 81. Housing; 82. Conveying pump; 83. Connecting pipe; 84. Filling pipe.

[0040] 9. Stop block

[0041] 10. Protective components; 101. First protective cover; 102. Second protective cover; 103. Positioning block; 104. Positioning groove; 105. Rubber pad; 106. Limit bolt; 107. Transparent plate.

[0042] 11. Adjustment component; 111. Rectangular connecting block; 112. Circular connecting rod; 113. Adjustment sleeve; 114. Fixing ring; 115. Bolt; 116. Threaded hole; 117. Rectangular mounting plate. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0044] First Embodiment

[0045] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1A schematic diagram of the first embodiment of a tin-spraying device for aluminum foil circuit board production and processing provided by the present invention; Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below; Figure 3 for Figure 1 A schematic diagram of the overall three-dimensional structure of the device shown; Figure 4 for Figure 3 The enlarged schematic diagram of section B is shown. A tin-spraying device for aluminum foil circuit board manufacturing includes:

[0046] Mounting bracket 1, with a cross connecting bracket 2 provided on one side of the mounting bracket 1;

[0047] Multiple rotating devices 3 are respectively disposed on one side of the cross connecting frame 2. Each rotating device 3 includes a U-shaped mounting frame 31. A first motor 32 is mounted on one side of the cross connecting frame 2. One end of the output shaft of the first motor 32 is connected to the center position of one side of the U-shaped mounting frame 31 through a coupling.

[0048] Fixing component 4 is disposed inside the U-shaped mounting bracket 31;

[0049] Rotating device 6, which is located at the center of one side of the cross connecting frame 2;

[0050] Spraying assembly 7, which is disposed on the surface of the rotating device 6;

[0051] A conveying device 8 is mounted on the surface of the mounting frame 1.

[0052] The fixing component 4 includes two fixing seats 41, and a threaded rod 42 is provided between the two fixing seats 41. Both sides of the surface of the threaded rod 42 are threadedly connected to threaded sleeves 43, and the bottom of the two threaded sleeves 43 are connected to fixing plates 44 through connecting blocks.

[0053] Two fixed seats 41 are symmetrically connected to both sides of the surface of the U-shaped mounting bracket 31. The threads on the surface of the threaded rod 42 are reverse threads. A separator block is provided at the center of the surface of the threaded rod 42 to facilitate the movement of the two threaded sleeves 43 at designated positions on the surface of the threaded rod 42. One end of the threaded rod 42 is rotatably connected to one side of one of the fixed seats 41 via a rotating shaft, and the other end of the threaded rod 42 is connected to the rotating handle 45 via a connecting block. The use of the threaded rod 42 and the two threaded sleeves 43 facilitates the adjustment of the distance between the two fixed plates 44. U-shaped grooves are provided opposite to each other on the two fixed plates 44. The two fixed plates 44 are fitted with aluminum... To fix the aluminum foil circuit board, when installing it, first place the aluminum foil circuit board between two fixing plates 44, then rotate the threaded rod 42 by rotating the handle 45. When the threaded rod 42 rotates, it drives the threaded sleeves 43 on both sides of the surface to move towards the middle. When the two threaded sleeves 43 move towards the middle, they drive the two fixing plates 44 to move towards the middle through the connecting block. When the two fixing plates 44 move towards the middle, they drive the limiting sleeve 53 to move on the surface of the limiting rod 52 through the connecting block. After the two fixing plates 44 fix the aluminum foil circuit board, you can stop rotating the handle 45.

[0054] One end of the threaded rod 42 is connected to a rotating handle 45 via a rotating block.

[0055] The bottom of the U-shaped mounting bracket 31 is provided with a limiting component 5. The limiting component 5 includes two connecting seats 51. A limiting rod 52 is connected between the two connecting seats 51. A limiting sleeve 53 is sleeved on both sides of the surface of the limiting rod 52. The limiting sleeve 53 is connected to the bottom of the fixing plate 44 through a connecting block.

[0056] Two connecting seats 51 are symmetrically connected to both sides of the bottom of the U-shaped mounting bracket 31. The use of the limiting rod 52 and the two limiting sleeves 53 can limit the movement of the threaded rod 42 and the two threaded sleeves 43.

[0057] The rotating device 6 includes a second motor 61. One end of the output shaft of the second motor 61 is connected to a threaded connecting rod 62 via a coupling. A threaded connecting sleeve 63 is fitted on the surface of the threaded connecting rod 62. Circular rods 64 are connected to the surface of the cross connecting frame 2 and around the threaded connecting rod 62. A movable sleeve 65 is fitted on the surface of the circular rod 64. A pulling rod 66 is connected between the movable sleeve 65 and the threaded connecting sleeve 63.

[0058] The second motor 62 is installed at the center of one side of the cross connector 2. The first motor 32 and the second motor 61 are both servo motors and are powered by an external power source. The second motor 61 and the threaded connecting rod 62 are used to move the spraying assembly 7 left and right when the threaded connecting sleeve 63 moves, so as to uniformly spray tin onto the surface of the aluminum foil circuit board. The circular rod 64 and the movable sleeve 65 can limit the movement of the threaded connecting sleeve 63 on the surface of the threaded connecting rod 62. Multiple rectangular plates 71 are connected to the surfaces of multiple movable sleeves 65 respectively. The rectangular through groove 72 and the adjusting component 73 can adjust the vertical position of the spraying pipe 75. The adjusting component 73 consists of a movable block with an external threaded connecting block and a threaded limiting sleeve. When adjusting the vertical position of the spraying pipe 75, first loosen the adjusting component 73, and then pull the adjusting component 73 to move it inside the rectangular through groove 72 to move the spraying pipe 75. After adjusting the position of the spraying pipe 75, tighten the adjusting component 73.

[0059] The spraying assembly 7 includes multiple rectangular plates 71, each with a rectangular through groove 72 on its surface. Each rectangular through groove 72 has an adjusting member 73 inside it. Each adjusting member 73 has a support rod 74 connected to one side. Each support rod 74 has a spray pipe 75 connected to one end. Each spray pipe 75 is connected to a hose 76. Each spray pipe 75 has multiple spray holes 77 on its surface.

[0060] The conveying device 8 includes a housing 81, on the surface of which a conveying pump 82 is mounted. The input and output ends of the conveying pump 82 are connected to a connecting pipe 83. One end of one of the connecting pipes 83 is connected to one of the flexible hoses 76. A filling pipe 84 is connected to one side of the housing 81.

[0061] Both the threaded connecting rod 62 and the circular rod 64 are connected to a stop block 9 at their ends.

[0062] The working principle of the tin-spraying device for aluminum foil circuit board production and processing provided by the present invention is as follows:

[0063] In use, when performing soldering on the aluminum foil circuit board inside the U-shaped mounting bracket 31, the pump 82 delivers the liquid inside the housing 81 through two connecting pipes 83 to one of the flexible hoses 76. After the liquid is delivered to one of the flexible hoses 76, it is then delivered to two spray pipes 75. After the liquid is delivered to the two spray pipes 75, it is then delivered through two more flexible hoses 76 to the other two spray pipes 75. Once all four spray pipes 75 are filled with liquid, the pressure from the pump 82 is used to propel the liquid from the four spray pipes 75 through multiple spray nozzles. The nozzle 77 sprays the liquid onto one side of the aluminum foil circuit board surface. After the liquid is sprayed onto one side of the aluminum foil circuit board surface, the second motor 61 is started to drive the threaded connecting rod 62 to rotate. When the threaded connecting rod 62 rotates, it drives the threaded connecting sleeve 63 on the surface to move. When the threaded connecting sleeve 63 moves, it drives multiple moving sleeves 65 to move on the surface of multiple circular rods 64 through multiple pulling rods 66. When the multiple moving sleeves 65 move on the surface of multiple circular rods 64, they drive multiple spraying pipes 75 to move through the rectangular plate 71 and the support rod 74, so that the molten solder can be sprayed evenly onto the surface of the aluminum foil circuit board.

[0064] After the molten solder is sprayed on one side of the aluminum foil circuit board, the first motor 32 is started to rotate the aluminum foil circuit board 180 degrees through the U-shaped mounting bracket 31. After the aluminum foil circuit board has rotated 180 degrees, the first motor 32 stops working, and then the second motor 61 rotates in the opposite direction to spray the molten solder on the other side of the aluminum foil circuit board.

[0065] Compared with related technologies, the tin-spraying device for aluminum foil circuit board production and processing provided by the present invention has the following beneficial effects:

[0066] This invention provides a tin-spraying device for aluminum foil circuit board production and processing. A first motor 32 with a U-shaped mounting bracket 31 is provided on one side of the cross connecting frame 2. The device is used in conjunction with a rotating device 6, a spraying component 7 and a conveying device 8. After the aluminum foil circuit board is fixed on the device, the front and back sides of the aluminum foil circuit board can be directly and evenly sprayed with tin.

[0067] Second Embodiment

[0068] Please refer to the following: Figure 5 and Figure 6 Based on the first embodiment of this application which provides a tin-spraying apparatus for aluminum foil circuit board production and processing, the second embodiment of this application proposes another tin-spraying apparatus for aluminum foil circuit board production and processing. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0069] Specifically, the second embodiment of this application provides a tin-spraying device for aluminum foil circuit board production and processing, which differs in that the surface of the mounting frame 1 of the tin-spraying device for aluminum foil circuit board production and processing is provided with a protective component 10. The protective component 10 includes a first protective cover 101 and a second protective cover 102. A positioning block 103 is connected to one side of the first protective cover 101. A positioning groove 104 adapted to the positioning block 103 is opened at one end of the second protective cover 102. Rubber pads 105 are adhered to the top and bottom of the inner wall of the positioning groove 104. A limit bolt 106 is provided between the second protective cover 102 and the positioning block 103. A transparent plate 107 is connected to one side of both the first protective cover 101 and the second protective cover 102.

[0070] The use of positioning block 103 and positioning groove 104 facilitates the splicing between the first protective cover 101 and the second protective cover 102, and the use of transparent plate 107 facilitates the staff to check the working status of the entire device.

[0071] The working principle of the tin-spraying device for aluminum foil circuit board production and processing provided by the present invention is as follows:

[0072] In use, when the entire device is working, the first protective cover 101 with positioning block 103 and the second protective cover 102 with positioning groove 104 are spliced ​​onto the entire device, and then the limiting bolt 106 is passed through the second protective cover 102 and connected to the positioning block 10 inside the positioning groove 104.

[0073] Compared with related technologies, the tin-spraying device for aluminum foil circuit board production and processing provided by the present invention has the following beneficial effects:

[0074] This invention provides a tin spraying device for aluminum foil circuit board production and processing. A protective component 10 is provided on the surface of the mounting frame 1 to protect the entire device and prevent molten solder from splashing on the surface of the aluminum foil circuit board during the tin spraying operation.

[0075] Third Embodiment

[0076] Please refer to the following: Figure 7 Based on the first embodiment of this application, a tin-spraying apparatus for aluminum foil circuit board production and processing is provided. The third embodiment of this application proposes another tin-spraying apparatus for aluminum foil circuit board production and processing. The third embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the separate implementation of the first embodiment.

[0077] Specifically, the third embodiment of this application provides a different type of tin-spraying device for aluminum foil circuit board production and processing. In this tin-spraying device, an adjustment component 11 is provided between the mounting frame 1 and the cross connecting frame 2. The adjustment component 11 includes two rectangular connecting blocks 111, and a circular connecting rod 112 is connected between the two rectangular connecting blocks 111. An adjustment sleeve 113 is fitted on the surface of the circular connecting rod 112. A fixing ring 114 is connected to one side of the adjustment sleeve 113 through a connecting block. The fixing ring 114 is connected to the mounting frame 1. A rectangular mounting plate 117 is connected between the two rectangular connecting blocks 111. A bolt 115 is provided inside the adjustment sleeve 113. A plurality of threaded holes 116 adapted to the bolt 115 are opened on the surface of the circular connecting rod 112.

[0078] The cross-shaped connecting bracket 2 is connected to one side of the rectangular mounting plate 117. The use of the circular connecting rod 112 and the adjusting sleeve 113 allows the entire device to be adjusted up and down via the rectangular mounting plate 117.

[0079] The working principle of the tin-spraying device for aluminum foil circuit board production and processing provided by the present invention is as follows:

[0080] In use, when adjusting the vertical position of the entire device, the rectangular mounting plate 117 is pulled to move inside the adjusting sleeve 113 using the circular connecting rod 112. After the position of the rectangular mounting plate 117 is adjusted, the bolt 115 is passed through the adjusting sleeve 113 and connected to the threaded hole 116 on the surface of the circular connecting rod 112.

[0081] Compared with related technologies, the tin-spraying device for aluminum foil circuit board production and processing provided by the present invention has the following beneficial effects:

[0082] The present invention provides a tin-spraying device for aluminum foil circuit board production and processing. An adjustment component 10 is provided between the mounting frame 1 and the cross connecting frame 2 to facilitate the adjustment of the vertical height of the entire device when installing aluminum foil circuit boards, and at the same time, it can prevent the U-shaped mounting frame 31 from being blocked by the housing 81 when rotating.

[0083] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A tin-spraying device for aluminum foil circuit board production and processing, characterized in that, include: Mounting bracket, one side of which is provided with a cross connecting bracket; Multiple rotating devices are respectively disposed on one side of the cross connecting frame. Each rotating device includes a U-shaped mounting bracket. A first motor is mounted on one side of the cross connecting frame. One end of the output shaft of the first motor is connected to the center position of one side of the U-shaped mounting bracket via a coupling. A fixing component, wherein the fixing component is disposed inside the U-shaped mounting bracket; A rotating device is disposed at the center of one side of the cross connecting frame; A spraying assembly is disposed on the surface of the rotating device; A conveying device, which is mounted on the surface of the mounting frame; The fixing component includes two fixing seats, a threaded rod is provided between the two fixing seats, threaded sleeves are threadedly connected to both sides of the surface of the threaded rod, and a fixing plate is connected to the bottom of the two threaded sleeves through a connecting block; The rotating device includes a second motor. One end of the output shaft of the second motor is connected to a threaded connecting rod via a coupling. A threaded connecting sleeve is fitted on the surface of the threaded connecting rod. Circular rods are connected to the surface of the cross connecting frame and around the threaded connecting rod. A movable sleeve is fitted on the surface of the circular rods. A pull rod is connected between the movable sleeve and the threaded connecting sleeve. The spraying assembly includes multiple rectangular plates, each rectangular plate having a rectangular through groove on its surface. Each rectangular through groove has an adjusting component inside it. Each adjusting component has a support rod connected to one side. Each support rod has a spray pipe connected to one end. Each spray pipe is connected to a hose. Each spray pipe has multiple spray holes on its surface. The conveying device includes a housing, on the surface of which a conveying pump is installed. Both the input and output ends of the conveying pump are connected to a connecting pipe. One end of one of the connecting pipes is connected to one of the flexible hoses. A filling pipe is connected to one side of the housing.

2. The tin-spraying device for aluminum foil circuit board production and processing according to claim 1, characterized in that, One end of the threaded rod is connected to a rotating handle via a rotating block.

3. The tin-spraying device for aluminum foil circuit board production and processing according to claim 1, characterized in that, The bottom of the U-shaped mounting bracket is provided with a limiting component, which includes two connecting seats and a limiting rod connected between the two connecting seats. Both sides of the surface of the limiting rod are fitted with limiting sleeves, and the limiting sleeves are connected to the bottom of the fixing plate through connecting blocks.

4. The tin-spraying device for aluminum foil circuit board production and processing according to claim 1, characterized in that, Both the threaded connecting rod and the circular rod have stoppers connected to their ends.

5. The tin-spraying device for aluminum foil circuit board production and processing according to claim 1, characterized in that, The surface of the mounting bracket is provided with protective components, which include a first protective cover and a second protective cover. A positioning block is connected to one side of the first protective cover, and a positioning groove adapted to the positioning block is opened at one end of the second protective cover. Rubber pads are adhered to the top and bottom of the inner wall of the positioning groove. A limit bolt is provided between the second protective cover and the positioning block. A transparent plate is connected to one side of both the first protective cover and the second protective cover.

6. The tin-spraying device for aluminum foil circuit board production and processing according to claim 1, characterized in that, An adjustment assembly is provided between the mounting bracket and the cross connecting bracket. The adjustment assembly includes two rectangular connecting blocks and a circular connecting rod connecting the two rectangular connecting blocks. An adjustment sleeve is fitted on the surface of the circular connecting rod. A fixing ring is connected to one side of the adjustment sleeve through a connecting block. The fixing ring is connected to the mounting bracket. A rectangular mounting plate is connected between the two rectangular connecting blocks. A bolt is provided inside the adjustment sleeve. Multiple threaded holes that are adapted to the bolt are opened on the surface of the circular connecting rod.

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