Tin spraying device for aluminum foil circuit board production and processing

Abstract

The tin spraying device for aluminum foil circuit board production and processing comprises a machine body, a tin spraying box is installed on the front side of the top of the machine body, a first sealing groove is formed in the right side of the tin spraying box, and the tin spraying box communicates with an external air suction machine and a purification device. Under the cooperation of the tin spraying mechanism, the feeding mechanism, the sealing mechanism, the auxiliary mechanism, the turning-around mechanism and the overturning mechanism, no matter the length of a circuit board to be subjected to tin spraying is larger than, smaller than or equal to the length of the tin spraying box, the device can be well applied, the circuit board can be overturned and turned around in the tin spraying process, tin spraying is uniform, no dead angle area exists, and the working efficiency is improved. The whole process is automatic, operation by workers is not needed, and the requirements of the workers are met; besides, according to the tin spraying mode in the device, the circuit board is in a horizontal state, so that the phenomenon that a tin layer on the surface of the circuit board is thin due to the fact that the circuit board is subjected to vertical tin spraying and tin liquid is easily influenced by gravity and rapidly drips downwards is avoided, and the product quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board production, and specifically relates to a tin spraying device for the production and processing of aluminum foil circuit boards. Background Art

[0002] As one of the most common surface coating forms for circuit board surface treatment, tin spraying is widely used in the production of circuit boards. The quality of tin spraying will directly affect the welding quality and solderability during subsequent customer production. Therefore, the quality of tin spraying has become a key point in the quality control of circuit board manufacturers.

[0003] In the prior art, harmful waste gas is generated during the tin spraying process of circuit boards. In order to prevent it from flowing into the environment, tin spraying is usually carried out in a sealed box. Due to the different lengths of circuit boards, workers need to replace sealed boxes of different lengths and also replace the tin spraying equipment, resulting in high costs, which is difficult to meet the needs of enterprises and also reduces the practicability of the device. Summary of the Invention

[0004] To solve the above technical problems, a tin spraying device for the production and processing of aluminum foil circuit boards is provided. This technical solution solves the problem in the prior art mentioned in the above background art that during the tin spraying process of circuit boards, harmful waste gas is generated. In order to prevent it from flowing into the environment, tin spraying is usually carried out in a sealed box. Due to the different lengths of circuit boards, workers need to replace sealed boxes of different lengths and also replace the tin spraying equipment, resulting in high costs.

[0005] To achieve the above purposes, the technical solution adopted by the present invention is as follows: A tin spraying device for the production and processing of aluminum foil circuit boards, comprising: A machine body, with a tin spraying box installed on the front side of the top of the machine body. A first sealing groove is provided on the right side of the tin spraying box, and the tin spraying box is connected to an external air suction machine and a purification device; A tin spraying mechanism, installed at the inner top of the tin spraying box, for spraying tin on the circuit board; A feeding mechanism, located on the right side of the tin spraying box, for transporting and feeding the circuit board; A sealing mechanism, installed between the tin spraying box and the feeding mechanism, for transferring the circuit board into the tin spraying box and sealing the right side of the tin spraying box; An auxiliary mechanism, arranged on the back of the tin spraying box; A turning mechanism, installed on the outside of the feeding mechanism, for rotating and turning the circuit board; A flipping mechanism, installed on the rear side of the top of the machine body, for flipping the circuit board.

[0006] Preferably, the solder spraying mechanism includes a first lead screw, a first guide rod, and a movable plate. The first lead screw is rotatably connected to the inner top of the solder spraying box, the first guide rod is welded to the inner top of the solder spraying box, the movable plate is threadedly connected to the first lead screw, and the movable plate is slidably connected to the first guide rod. A first stepping motor for driving the rotation of the first lead screw is installed on the left side of the solder spraying box, and a solder spraying head and a hot air head are arranged on the outer side of the movable plate.

[0007] Preferably, the feeding mechanism includes a first fixing plate. There are two groups of first fixing plates, both of which are welded to the top of the machine body. Two groups of first driving wheels are rotatably connected to the sides of the two groups of first fixing plates close to each other. The two groups of first driving wheels are connected by a first belt for conveying the circuit board.

[0008] Preferably, the sealing mechanism includes two groups of first fixing blocks welded to the top of the machine body. A second lead screw is rotatably connected between the two groups of first fixing blocks. A movable block is threadedly connected to the second lead screw. The movable block is slidably connected to a second guide rod. The second guide rod is fixedly installed between the two groups of first fixing blocks. A second stepping motor for driving the rotation of the second lead screw is arranged on the outer side of one of the first fixing blocks. A first driving motor is installed on the top of the movable block. The output end of the first driving motor is fixedly connected to a rotating plate. A first electric push rod is installed on the outer side of the rotating plate. The output end of the first electric push rod penetrates the outer wall of the rotating plate and is fixedly installed with a sealing frame.

[0009] Preferably, a first sealing ring is fixedly installed on the left side of the sealing frame. A first threaded rod is rotatably connected to the inside of the sealing frame. The thread directions of the two ends of the first threaded rod are opposite. Clamping members are threadedly connected to both ends of the outer surface of the first threaded rod. A first fixing rod is also fixedly connected inside the sealing frame. The clamping members are slidably connected to the first fixing rod. The outer end of the first threaded rod is fixedly connected to the output end of a first servo motor. The first servo motor is installed on the outer side of the sealing frame, and the first sealing ring is adapted to a first sealing groove.

[0010] Preferably, a second sealing groove is also opened on the left side of the sealing frame. Two groups of connecting blocks are welded to the top of the sealing frame. A second fixing rod is fixedly installed between the two groups of connecting blocks. Two movable members are slidably connected to the second fixing rod. The two movable members are respectively threadedly connected to both ends of the outer surface of a second threaded rod. The second threaded rod is rotatably connected between the two groups of connecting blocks. A second servo motor for driving the rotation of the second threaded rod is installed on the outer side of one of the connecting blocks. Second driving motors are installed on the outer sides of the two movable members. The output ends of the second driving motors are fixedly connected to rotating plates. Clamping blocks are connected to the sides of the two rotating plates close to each other.

[0011] Preferably, the auxiliary mechanism includes a placement rack which is arranged on the back of the solder spraying box. A number of groups of auxiliary frames are stored on the placement rack. The lengths of the several groups of auxiliary frames are different. A second sealing ring is fixedly installed on the right side of the auxiliary frame. The second sealing ring is adapted to the second sealing groove. And a third sealing ring is fixedly connected to the left side of the auxiliary frame. The third sealing ring is adapted to the first sealing groove. A clamping groove is formed at the top of the auxiliary frame. The clamping groove is adapted to the clamping block.

[0012] Preferably, the auxiliary mechanism further includes two groups of second fixing blocks fixedly installed on the top of the machine body. A third lead screw is rotatably connected between the two groups of second fixing blocks. An activity frame is threadedly connected to the third lead screw. The activity frame is slidably connected to a third guide rod. The two ends of the third guide rod are respectively fixedly connected to the inner walls of the two groups of second fixing blocks. A third stepping motor for driving the third lead screw to rotate is arranged on the outer side of one of the second fixing blocks. A fourth lead screw is rotatably connected inside the activity frame. A fourth guide rod is also installed inside the activity frame. A lifting block is slidably connected to the fourth guide rod. The lifting block is threadedly connected to the fourth lead screw. A fourth stepping motor for driving the fourth lead screw to rotate is arranged on the top of the activity frame. And a second electric push rod is connected to the outer side of the lifting block. The output end of the second electric push rod is fixedly connected to a mounting plate. A double-headed air cylinder is arranged at the bottom of the mounting plate. Both output ends of the double-headed air cylinder are fixedly connected to clamping blocks.

[0013] Preferably, the turning mechanism includes a fixed frame welded to the outer side of one of the first fixing plates. A fifth lead screw is rotatably connected inside the fixed frame. A lifting plate is threadedly connected to the fifth lead screw. The lifting plate is slidably connected to a fifth guide rod. The fifth guide rod is welded inside the fixed frame. A fifth stepping motor for driving the fifth lead screw to rotate is installed on the top of the fixed frame. And a third driving motor is arranged on the top of the lifting plate. The output end of the third driving motor is fixedly connected to a rotating frame. A third threaded rod is rotatably connected inside the rotating frame. Clamping plates are threadedly connected to both ends of the outer surface of the third threaded rod. A third servo motor for driving the third threaded rod to rotate is arranged on the outer side of the rotating frame. The thread rotation directions of both ends of the third threaded rod are opposite. And a third fixing rod is fixedly installed inside the rotating frame. The clamping plates are slidably connected to the third fixing rod.

[0014] Preferably, the flipping mechanism includes second fixing plates and a connecting frame. Two groups of second fixing plates are provided and are both welded to the top of the machine body. Two groups of second driving wheels are rotatably connected to the inner sides of the two groups of second fixing plates. The two groups of second driving wheels are driven and connected by a second belt. The connecting frame is welded to the bottom of the machine body. Two groups of third electric push rods are installed inside the connecting frame. The output ends of the third electric push rods are fixedly connected to mounting parts. A rotating shaft is rotatably connected between the two groups of mounting parts. Several other groups of flipping plates are fixedly installed on the rotating shaft.

[0015] Compared with the prior art, the present invention provides a solder spraying device for the production and processing of aluminum foil circuit boards, having the following beneficial effects: With the cooperation of the solder spraying mechanism, the feeding mechanism, the sealing mechanism, the auxiliary mechanism, the turning mechanism and the flipping mechanism, the device can be well applied regardless of whether the length of the circuit board to be soldered is greater than, less than or equal to the length of the solder spraying box. Moreover, the circuit board during the solder spraying process can be flipped and turned around. The solder spraying is uniform without dead corners, and the whole process is automated without the need for staff to operate, meeting the needs of the staff. In addition, in the solder spraying method of this device, the circuit board is in a horizontal state, avoiding the phenomenon that when the circuit board is vertically soldered, the solder liquid is easily affected by gravity and drips down quickly, resulting in a thinner tin layer on the surface of the circuit board, and improving the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the solder spraying box of the present invention; Figure 3 is a schematic diagram of the structure of the solder spraying mechanism of the present invention; Figure 4 is a schematic diagram of the structure of the sealing mechanism of the present invention; Figure 5 is a schematic diagram of the structure of the sealing frame of the present invention; Figure 6 is a schematic diagram of the structure of the auxiliary mechanism of the present invention; Figure 7 is a schematic diagram of the structure of the auxiliary frame of the present invention; Figure 8 is a schematic diagram of the structure of the auxiliary frame from another perspective of the present invention; Figure 9 is a schematic diagram of the internal structure of the movable frame of the present invention; Figure 10 is a schematic diagram of the structure of the feeding mechanism of the present invention; Figure 11 is a schematic diagram of the structure of the turning mechanism of the present invention; Figure 12 is a schematic diagram of the structure of the flipping mechanism of the present invention.

[0017] The reference numerals in the figure are: 1, body; 101, solder spraying box; 102, first sealing groove; 2, solder spraying mechanism; 201, first lead screw; 202, first guide rod; 203, first stepping motor; 204, movable plate; 205, solder spraying head; 206, hot air head; 3, feeding mechanism; 301, first fixing plate; 302, first driving wheel; 303, first belt; 4. Sealing mechanism; 401. First fixed block; 402. Second lead screw; 403. Second guide rod; 404. Second stepper motor; 405. Movable block; 406. First drive motor; 407. Rotating plate; 408. First electric push rod; 409. Sealing frame; 410. First sealing ring; 411. First threaded rod; 412. First fixed rod; 413. Clamping member; 414. First servo motor; 415. Second sealing groove; 416. Connecting block; 417. Second threaded rod; 418. Second fixed rod; 419. Second servo motor; 420. Movable member; 421. Second drive motor; 422. Rotating plate; 423. Block 5. Auxiliary mechanism; 501. Placing rack; 502. Auxiliary frame; 503. Second sealing ring; 504. Card slot; 505. Third sealing ring; 506. Second fixed block; 507. Third lead screw; 508. Third guide rod; 509. Third stepper motor; 510. Movable frame; 511. Fourth lead screw; 512. Fourth guide rod; 513. Fourth stepper motor; 514. Lifting block; 515. Second electric push rod; 516. Mounting plate; 517. Double-headed cylinder; 518. Clamping block 6. Turning mechanism; 601. Fixed frame; 602. Fifth lead screw; 603. Fifth guide rod; 604. Fifth stepper motor; 605. Lifting plate; 606. Third drive motor; 607. Rotating frame; 608. Third threaded rod; 609. Third fixed rod; 610. Third servo motor; 611. Clamping plate 7. Flipping mechanism; 701. Second fixing plate; 702. Second transmission wheel; 703. Second belt; 704. Connecting frame; 705. Third electric push rod; 706. Mounting member; 707. Flipping plate Detailed implementation manners

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0019] Embodiment 1 Please refer to Figures 1 - 12 As shown, a solder spraying device for aluminum foil circuit board production and processing, the machine body 1, a solder spraying box 101 is installed on the front side of the top of the machine body 1, a first sealing groove 102 is opened on the right side of the solder spraying box 101, and the solder spraying box 101 is communicated with an external suction machine and a purification device; Solder spraying mechanism 2, the solder spraying mechanism 2 is installed at the inner top of the solder spraying box 101 for spraying solder on the circuit board; Loading mechanism 3, the loading mechanism 3 is located on the right side of the solder spraying box 101 for transporting and loading the circuit board; Sealing mechanism 4, which is installed between the tin spray box 101 and the feeding mechanism 3, and is used to transfer the circuit board into the tin spray box 101 and seal the right side of the tin spray box 101; Auxiliary mechanism 5, the auxiliary mechanism 5 is arranged at the back of the tin spray box 101; A turning mechanism 6, which is installed on the outside of the feeding mechanism 3 and is used to rotate and turn the circuit board; The flipping mechanism 7 is installed at the rear side of the top of the body 1 and is used to flip the circuit board.

[0020] Example 2 Please refer to Figure 2 and Figure 3 As shown, the tin spraying mechanism 2 includes a first screw rod 201, a first guide rod 202 and a movable plate 204. The first screw rod 201 is rotatably connected to the inner top of the tin spraying box 101, the first guide rod 202 is welded to the inner top of the tin spraying box 101, the movable plate 204 is threadedly connected to the first screw rod 201, and the movable plate 204 is slidably connected to the first guide rod 202. A first stepper motor 203 for driving the first screw rod 201 to rotate is installed on the left side of the tin spraying box 101, and a tin spraying head 205 and a hot air head 206 are arranged on the outer side of the movable plate 204.

[0021] Those skilled in the art can understand that the first lead screw 201 is driven to rotate by the output end of the first stepper motor 203, so that the movable plate 204 reciprocates left and right along the surface of the first guide rod 202, so that the tin spray head 205 and the hot air head 206 reciprocate left and right.

[0022] Example 3 Please refer to Figure 10 As shown, the feeding mechanism 3 includes a first fixed plate 301, and two groups of first fixed plates 301 are provided, both of which are welded to the top of the machine body 1. The two groups of first fixed plates 301 are rotatably connected to the sides close to each other with two groups of first transmission wheels 302. The two groups of first transmission wheels 302 are connected through a first belt 303 for transmission. The two groups of first belts 303 are used to transport circuit boards.

[0023] Example 4 Please refer to Figure 4As shown, the sealing mechanism 4 includes two groups of first fixing blocks 401 welded to the top of the machine body 1. A second lead screw 402 is rotatably connected between the two groups of first fixing blocks 401. A movable block 405 is threadedly connected to the second lead screw 402. The movable block 405 is slidably connected to a second guide rod 403. The second guide rod 403 is fixedly installed between the two groups of first fixing blocks 401. A second stepping motor 404 for driving the rotation of the second lead screw 402 is arranged on the outer side of one of the first fixing blocks 401. A first driving motor 406 is installed on the top of the movable block 405. The output end of the first driving motor 406 is fixedly connected to a rotating plate 407. A first electric push rod 408 is installed on the outer side of the rotating plate 407. The output end of the first electric push rod 408 penetrates through the outer wall of the rotating plate 407 and is fixedly installed with a sealing frame 409.

[0024] Please refer to Figure 5 As shown, a first sealing ring 410 is fixedly installed on the left side of the sealing frame 409. A first threaded rod 411 is rotatably connected inside the sealing frame 409. The thread directions of the two ends of the first threaded rod 411 are opposite. Clamping members 413 are threadedly connected to both ends of the outer surface of the first threaded rod 411. A first fixing rod 412 is also fixedly connected inside the sealing frame 409. The clamping members 413 are slidably connected to the first fixing rod 412. The outer end of the first threaded rod 411 is fixedly connected to the output end of a first servo motor 414. The first servo motor 414 is installed on the outer side of the sealing frame 409, and the first sealing ring 410 is adapted to the first sealing groove 102.

[0025] Please refer to Figure 5 As shown, a second sealing groove 415 is also opened on the left side of the sealing frame 409. Two connecting blocks 416 are welded to the top of the sealing frame 409. A second fixing rod 418 is fixedly installed between the two groups of connecting blocks 416. Two movable members 420 are slidably connected to the second fixing rod 418. The two movable members 420 are respectively threadedly connected to both ends of the outer surface of a second threaded rod 417. The second threaded rod 417 is rotatably connected between the two groups of connecting blocks 416. A second servo motor 419 for driving the rotation of the second threaded rod 417 is installed on the outer side of one of the connecting blocks 416. Second driving motors 421 are installed on the outer sides of the two movable members 420. The output ends of the second driving motors 421 are fixedly connected to rotating plates 422. Clamping blocks 423 are connected to the sides of the two rotating plates 422 close to each other.

[0026] Those skilled in the art can understand that the output end of the first servo motor 414 drives the first threaded rod 411 to rotate, so that the two clamping members 413 approach or move away from each other along the surface of the first fixed rod 412. When approaching, the circuit board is clamped, and when moving away, the clamping of the circuit board is released; the output end of the second stepping motor 404 drives the second lead screw 402 to rotate, so that the movable block 405 reciprocates left and right along the surface of the second guide rod 403, driving the sealing frame 409 to reciprocate left and right. When the sealing frame 409 moves to the left, the two clamping members 413 clamp the circuit board and extend the circuit board into the inside of the solder spraying box 101. At this time, the first sealing ring 410 is stuck in the first sealing groove 102, improving the sealing performance at the connection between the sealing frame 409 and the solder spraying box 101; and the output end of the second servo motor 419 drives the second threaded rod 417 to rotate, so that the two movable members 420 approach or move away from each other along the surface of the second fixed rod 418, realizing driving the two clamping blocks 423 to approach or move away from each other, and the output end of the second driving motor 421 can drive the rotating plate 422 to rotate, so that the rotating plate 422 and the clamping block 423 as a whole are kept in a vertical state or a horizontal state.

[0027] Embodiment 5 Please refer to Figure 6 、 Figure 7 and Figure 8 As shown in, the auxiliary mechanism 5 includes a placement rack 501. The placement rack 501 is arranged on the back of the solder spraying box 101. A number of auxiliary frames 502 are stored on the placement rack 501. The lengths of the several groups of auxiliary frames 502 are different. A second sealing ring 503 is fixedly installed on the right side of the auxiliary frame 502. The second sealing ring 503 is adapted to the second sealing groove 415. And a third sealing ring 505 is fixedly connected to the left side of the auxiliary frame 502. The third sealing ring 505 is adapted to the first sealing groove 102. A clamping groove 504 is opened at the top of the auxiliary frame 502. The clamping groove 504 is adapted to the clamping block 423.

[0028] Please refer to Figure 9As shown in the figure, the auxiliary mechanism 5 further includes two groups of second fixing blocks 506 fixedly installed on the top of the machine body 1. A third lead screw 507 is rotatably connected between the two groups of second fixing blocks 506. A movable frame 510 is threadedly connected to the third lead screw 507. The movable frame 510 is slidably connected to the third guide rod 508. Both ends of the third guide rod 508 are fixedly connected to the inner walls of the two groups of second fixing blocks 506. A third stepping motor 509 for driving the third lead screw 507 to rotate is arranged on the outer side of one of the second fixing blocks 506. A fourth lead screw 511 is rotatably connected inside the movable frame 510. A fourth guide rod 512 is also installed inside the movable frame 510. A lifting block 514 is slidably connected to the fourth guide rod 512. The lifting block 514 is threadedly connected to the fourth lead screw 511. A fourth stepping motor 513 for driving the fourth lead screw 511 to rotate is arranged on the top of the movable frame 510. And a second electric push rod 515 is connected to the outer side of the lifting block 514. The output end of the second electric push rod 515 is fixedly connected to the mounting plate 516. A double-headed cylinder 517 is arranged at the bottom of the mounting plate 516. Both output ends of the double-headed cylinder 517 are fixedly connected to the clamping blocks 518.

[0029] Those skilled in the art can understand that by controlling the elongation or contraction of the two output ends of the double-headed cylinder 517, the two groups of clamping blocks 518 are driven to approach or separate from each other. When approaching, the auxiliary frame 502 is clamped, and when separating, the clamping of the auxiliary frame 502 is released; by driving the third lead screw 507 to rotate through the output end of the third stepping motor 509, the movable frame 510 reciprocates horizontally left and right along the surface of the third guide rod 508, realizing the horizontal left and right reciprocating movement of the two groups of clamping blocks 518; by driving the fourth lead screw 511 to rotate through the output end of the fourth stepping motor 513, the lifting block 514 reciprocates up and down along the surface of the fourth guide rod 512, realizing the up and down reciprocating movement of the two groups of clamping blocks 518; and by controlling the elongation or contraction of the output end of the second electric push rod 515, the two groups of clamping blocks 518 are driven to move forward or backward synchronously.

[0030] Embodiment 6 Please refer to Figure 10 and Figure 11As shown in the figure, the turning mechanism 6 includes a fixed frame 601 welded to the outside of one group of first fixing plates 301. A fifth lead screw 602 is rotatably connected inside the fixed frame 601. A lifting plate 605 is threadedly connected to the fifth lead screw 602. The lifting plate 605 is slidably connected to a fifth guide rod 603. The fifth guide rod 603 is welded inside the fixed frame 601. A fifth stepping motor 604 for driving the fifth lead screw 602 to rotate is installed at the top of the fixed frame 601. And a third driving motor 606 is arranged at the top of the lifting plate 605. The output end of the third driving motor 606 is fixedly connected to a rotating frame 607. A third threaded rod 608 is rotatably connected inside the rotating frame 607. Clamping plates 611 are threadedly connected to both ends of the outer surface of the third threaded rod 608. A third servo motor 610 for driving the third threaded rod 608 to rotate is arranged outside the rotating frame 607. The thread directions of the two ends of the third threaded rod 608 are opposite. And a third fixing rod 609 is fixedly installed inside the rotating frame 607. The clamping plates 611 are slidably connected to the third fixing rod 609.

[0031] Those skilled in the art can understand that by driving the third threaded rod 608 to rotate through the output end of the third servo motor 610, the two clamping plates 611 are moved closer to or away from each other. When they move closer, the circuit boards conveyed by the two first belts 303 are clamped and fixed. By driving the fifth lead screw 602 to rotate through the output end of the fifth stepping motor 604, the lifting plate 605 reciprocates up and down along the surface of the fifth guide rod 603, so that the two clamping plates 611 reciprocate up and down. And by driving the output end of the third driving motor 606, the rotating frame 607 is rotated, so that the circuit board in the clamped state rotates, thereby realizing the turning of the circuit board.

[0032] Embodiment 7 Please refer to Figure 12 As shown in the figure, the flipping mechanism 7 includes second fixing plates 701 and a connecting frame 704. Two groups of second fixing plates 701 are provided and are both welded to the top of the machine body 1. Two groups of second driving wheels 702 are rotatably connected to the inner sides of the two groups of second fixing plates 701. The two groups of second driving wheels 702 are connected by a second belt 703. The connecting frame 704 is welded to the bottom of the machine body 1. Two groups of third electric push rods 705 are installed inside the connecting frame 704. The output ends of the third electric push rods 705 are fixedly connected to the mounting parts 706. A rotating shaft is rotatably connected between the two groups of mounting parts 706. Several other flipping plates 707 are fixedly installed on the rotating shaft.

[0033] To clearly describe the working principle of the present invention, we will elaborate from the perspective of Figure 1 as follows: (1) S1. When the length of the circuit board is equal to or less than the length of the solder spraying box 101, two groups of first belts 303 sequentially convey the circuit board to be solder-sprayed. The output end of the first driving motor 406 drives the rotating plate 407 to rotate, so that the two groups of clamping members 413 face the two groups of first belts 303. The output end of the second stepping motor 404 drives the second lead screw 402 to rotate, so that the movable block 405 and the sealing frame 409 move as a whole towards the two groups of first belts 303. The two groups of first belts 303 continue to convey the leftmost circuit board, so that the left side of the circuit board enters between the two groups of clamping members 413. The output end of the first servo motor 414 drives the first threaded rod 411 to rotate, so that the two groups of clamping members 413 approach each other to clamp the circuit board. S2. The output end of the first driving motor 406 rotates in the reverse direction, so that the two groups of clamping members 413 face the solder spraying box 101. Under the action of the output end of the second stepping motor 404 rotating in the reverse direction, the clamped circuit board extends into the interior of the solder spraying box 101. At this time, the first sealing ring 410 is stuck in the first sealing groove 102, improving the sealing performance at the connection between the sealing frame 409 and the solder spraying box 101. S3. The output end of the first stepping motor 203 drives the first lead screw 201 to rotate, so that the movable plate 204 reciprocates left and right along the surface of the first guide rod 202. The solder spraying head 205 sprays solder on the top of the circuit board extending into the interior of the solder spraying box 101. Then the hot air head 206 also reciprocates left and right to dry the high-temperature solder liquid. Moreover, in this solder spraying method, the circuit board is in a horizontal state, avoiding the phenomenon that the solder liquid is easily affected by gravity and quickly drips downward, resulting in a relatively thin solder layer on the surface of the circuit board, meeting the requirements of the staff. S4. During the top spraying of the circuit board with solder, the external suction machine and purification device connected to the solder spraying box 101 are always in operation to purify the waste gas generated during the spraying process, ensuring the environmental protection of the production workshop and maintaining the environment. After the waste gas is purified, the output end of the second stepping motor 404 drives the second lead screw 402 to rotate, causing the circuit board in the clamped state to leave the inside of the solder spraying box 101. The output end of the first driving motor 406 continues to drive the rotating plate 407 to rotate, causing the two clamping members 413 to face the two second belts 703. Under the action of the output end of the second stepping motor 404, the two clamping members 413 move to the position adapted to the two second belts 703. The output end of the first electric push rod 408 extends, driving the sealing frame 409 and the two clamping members 413 as a whole to move backward, thereby placing the circuit board on the two second belts 703. The two second belts 703 drive the circuit board to move backward, and the rotating shaft and several sets of turning plates 707 rotate as a whole, thereby realizing the flipping of the circuit board and turning the original bottom of the circuit board upward. Secondly, the output end of the third electric push rod 705 drives the mounting member 706 to move downward, thereby driving several sets of turning plates 707 to move downward. The two second belts 703 convey in the reverse direction, causing the flipped circuit board to move forward and re-enter between the two clamping members 413. Then, repeat the above solder spraying process. The two clamping members 413 clamp and drive the circuit board to move into the solder spraying box 101 for solder spraying. After that, the double-sided solder-sprayed circuit board is conveyed and unloaded through the second belt 703, which is convenient and fast, without manual turning, realizing the automatic operation of double-sided solder spraying of the circuit board; (2) S1. When the length of the circuit board is greater than the length of the solder spraying box 101, an auxiliary frame 502 with an appropriate length can be selected according to the length of the circuit board, without replacing the solder spraying box 101 with different lengths. Under the action of the two output ends of the double-headed cylinder 517, the two clamping blocks 518 are driven to approach each other to clamp the auxiliary frame 502. Under the combined action of the output end of the third stepping motor 509, the output end of the fourth stepping motor 513, and the output end of the second electric push rod 515, the clamped auxiliary frame 502 is brought close to the sealing frame 409. At the same time, the output end of the second driving motor 421 drives the rotating plate 422 and the clamping block 423 to maintain a horizontal state. The second sealing ring 503 is stuck inside the second sealing groove 415. Secondly, the output end of the second servo motor 419 drives the second threaded rod 417 to rotate, causing the two clamping blocks 423 to approach each other. The two clamping blocks 423 are stuck inside the clamping grooves 504, thereby realizing the installation of the auxiliary frame 502 on the sealing frame 409; S2. Repeat the above steps to spray tin on the top of the circuit board. However, since a part of the circuit board is located inside the auxiliary frame 502 at this time, tin spraying cannot be performed on this part. Therefore, the present invention is adaptively provided with a turning mechanism 6. By placing the circuit board back on the tops of the two groups of first belts 303, the two groups of first belts 303 drive the circuit board to move to the left. When the circuit board reaches the position of the turning mechanism 6, the output end of the fifth stepping motor 604 drives the fifth lead screw 602 to rotate, causing the lifting plate 605 and the two groups of clamping plates 611 to move downward as a whole. Secondly, the output end of the third servo motor 610 drives the third threaded rod 608 to rotate, causing the two groups of clamping plates 611 to approach each other and clamp the circuit board. The output end of the fifth stepping motor 604 rotates in the reverse direction, causing the clamped circuit board to move upward. By driving the output end of the third driving motor 606, the rotating frame 607 is driven to rotate, causing the clamped circuit board to rotate, thereby realizing the turning of the circuit board. Then, repeat the above steps to continue tin spraying. It is convenient and fast, without manual turning, and is fully automated, which also improves the practicability of the device.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A solder spraying device for the production and processing of aluminum foil circuit boards, characterized in that, Including: A machine body (1), a soldering tin spraying box (101) is installed on the front side of the top of the machine body (1), a first sealing groove (102) is opened on the right side of the soldering tin spraying box (101), and the soldering tin spraying box (101) is communicated with an external air suction machine and a purification device; A soldering tin spraying mechanism (2), which is installed at the inner top of the soldering tin spraying box (101) and is used for spraying soldering tin on the circuit board; A feeding mechanism (3), which is located on the right side of the soldering tin spraying box (101) and is used for transporting and feeding the circuit board; A sealing mechanism (4), which is installed between the soldering tin spraying box (101) and the feeding mechanism (3) and is used for transferring the circuit board into the soldering tin spraying box (101) and sealing the right side of the soldering tin spraying box (101); An auxiliary mechanism (5), which is arranged on the back of the soldering tin spraying box (101); A turning mechanism (6), which is installed outside the feeding mechanism (3) and is used for rotating and turning the circuit board; A flipping mechanism (7), which is installed at the rear side of the top of the machine body (1) and is used for flipping the circuit board.

2. The solder spraying device for the production and processing of aluminum foil circuit boards according to claim 1, wherein, The soldering tin spraying mechanism (2) includes a first lead screw (201), a first guide rod (202) and a movable plate (204). The first lead screw (201) is rotatably connected to the inner top of the soldering tin spraying box (101), the first guide rod (202) is welded to the inner top of the soldering tin spraying box (101), the movable plate (204) is threadedly connected to the first lead screw (201), the movable plate (204) is slidably connected to the first guide rod (202), a first stepping motor (203) for driving the first lead screw (201) to rotate is installed on the left side of the soldering tin spraying box (101), and a soldering tin spraying head (205) and a hot air head (206) are arranged on the outer side of the movable plate (204).

3. The solder spraying device for the production and processing of aluminum foil circuit boards according to claim 1, wherein, The feeding mechanism (3) includes a first fixing plate (301). There are two groups of the first fixing plates (301) which are both welded to the top of the machine body (1). Two groups of first driving wheels (302) are rotatably connected to the side of the two groups of first fixing plates (301) close to each other. The two groups of first driving wheels (302) are connected by a first belt (303) for transmission, and the two groups of first belts (303) are used for conveying the circuit board.

4. A solder spraying device for the production and processing of aluminum foil circuit boards according to claim 1, characterized in that, The sealing mechanism (4) includes two groups of first fixing blocks (401) welded to the top of the machine body (1). A second lead screw (402) is rotatably connected between the two groups of first fixing blocks (401). A movable block (405) is threadedly connected to the second lead screw (402). The movable block (405) is slidably connected to a second guide rod (403). The second guide rod (403) is fixedly installed between the two groups of first fixing blocks (401). A second stepping motor (404) for driving the second lead screw (402) to rotate is arranged on the outside of one of the first fixing blocks (401). A first driving motor (406) is installed on the top of the movable block (405). The output end of the first driving motor (406) is fixedly connected to a rotating plate (407). A first electric push rod (408) is installed on the outside of the rotating plate (407). The output end of the first electric push rod (408) penetrates through the outer wall of the rotating plate (407) and is fixedly installed with a sealing frame (409).

5. The spraying tin device for the production and processing of aluminum foil circuit boards according to claim 4, characterized in that, A first sealing ring (410) is fixedly installed on the left side of the sealing frame (409). A first threaded rod (411) is rotatably connected inside the sealing frame (409). The thread directions of the two ends of the first threaded rod (411) are opposite. Clamping members (413) are threadedly connected to both ends of the outer surface of the first threaded rod (411). A first fixing rod (412) is also fixedly connected inside the sealing frame (409). The clamping members (413) are slidably connected to the first fixing rod (412). The outer end of the first threaded rod (411) is fixedly connected to the output end of a first servo motor (414). The first servo motor (414) is installed on the outside of the sealing frame (409), and the first sealing ring (410) is adapted to a first sealing groove (102).

6. A tin spraying device for the production and processing of aluminum foil circuit boards according to claim 4, characterized in that, A second sealing groove (415) is also opened on the left side of the sealing frame (409). Two groups of connecting blocks (416) are welded to the top of the sealing frame (409). A second fixing rod (418) is fixedly installed between the two groups of connecting blocks (416). Two movable parts (420) are slidably connected to the second fixing rod (418). The two movable parts (420) are respectively threadedly connected to both ends of the outer surface of a second threaded rod (417). The second threaded rod (417) is rotatably connected between the two groups of connecting blocks (416). A second servo motor (419) for driving the second threaded rod (417) to rotate is installed on the outside of one of the connecting blocks (416). Second driving motors (421) are installed on the outside of the two movable parts (420). The output ends of the second driving motors (421) are fixedly connected to rotating plates (422). Clamping blocks (423) are connected to the sides of the two rotating plates (422) close to each other.

7. An electroplating tin device for the production and processing of aluminum foil circuit boards according to claim 6, characterized in that, The auxiliary mechanism (5) includes a placement rack (501). The placement rack (501) is arranged on the back of the solder spraying box (101). A number of groups of auxiliary frames (502) are stored on the placement rack (501). The lengths of the several groups of auxiliary frames (502) are different. A second sealing ring (503) is fixedly installed on the right side of the auxiliary frame (502). The second sealing ring (503) is adapted to the second sealing groove (415). And a third sealing ring (505) is fixedly connected to the left side of the auxiliary frame (502). The third sealing ring (505) is adapted to the first sealing groove (102). A clamping groove (504) is formed in the top of the auxiliary frame (502). The clamping groove (504) is adapted to the clamping block (423).

8. An electroplating tin device for the production and processing of aluminum foil circuit boards according to claim 7, characterized in that, The auxiliary mechanism (5) further includes two groups of second fixing blocks (506) fixedly installed on the top of the machine body (1). A third lead screw (507) is rotatably connected between the two groups of second fixing blocks (506). A movable frame (510) is threadedly connected to the third lead screw (507). The movable frame (510) is slidably connected to the third guide rod (508). The two ends of the third guide rod (508) are respectively fixedly connected to the inner walls of the two groups of second fixing blocks (506). A third stepping motor (509) for driving the third lead screw (507) to rotate is arranged on the outside of one of the second fixing blocks (506). A fourth lead screw (511) is rotatably connected inside the movable frame (510). A fourth guide rod (512) is also installed inside the movable frame (510). A lifting block (514) is slidably connected to the fourth guide rod (512). The lifting block (514) is threadedly connected to the fourth lead screw (511). A fourth stepping motor (513) for driving the fourth lead screw (511) to rotate is arranged on the top of the movable frame (510). And a second electric push rod (515) is connected to the outside of the lifting block (514). The output end of the second electric push rod (515) is fixedly connected to the mounting plate (516). A double-headed cylinder (517) is arranged at the bottom of the mounting plate (516). Both output ends of the double-headed cylinder (517) are fixedly connected to the clamping blocks (518).

9. The spraying tin device for aluminum foil circuit board production and processing according to claim 3, characterized in that, The turning mechanism (6) comprises a fixed frame (601) welded to the outside of one of the first fixed plates (301), a fifth screw rod (602) being rotatably connected in the fixed frame (601), a lifting plate (605) being threadedly connected to the fifth screw rod (602), the lifting plate (605) being slidably connected to a fifth guide rod (603), the fifth guide rod (603) being welded in the fixed frame (601), a fifth stepping motor (604) for driving the fifth screw rod (602) to rotate being installed on the top of the fixed frame (601), and a third driving motor (606) being arranged on the top of the lifting plate (605), The output end of the third driving motor (606) is fixedly connected to a rotating frame (607), the interior of the rotating frame (607) is rotatably connected to a third threaded rod (608), both ends of the outer surface of the third threaded rod (608) are threadedly connected to a clamping plate (611), a third servo motor (610) for driving the third threaded rod (608) to rotate is arranged on the outer side of the rotating frame (607), the threads at both ends of the third threaded rod (608) have opposite rotation directions, and a third fixed rod (609) is also fixedly installed in the rotating frame (607), and the clamping plate (611) is slidably connected to the third fixed rod (609).

10. The solder spraying device for the production and processing of aluminum foil circuit boards according to claim 1, characterized in that, The flip mechanism (7) comprises a second fixed plate (701) and a connecting frame (704). The second fixed plate (701) is provided with two groups of second fixed plates (701) which are both welded to the top of the machine body (1). The inner sides of the two groups of second fixed plates (701) are both rotatably connected to two groups of second transmission wheels (702). The two groups of second transmission wheels (702) are connected to each other through a second belt (703). The connecting frame (704) is welded to the bottom of the machine body (1). Two groups of third electric push rods (705) are installed inside the connecting frame (704). The output end of the third electric push rod (705) is fixedly connected to the mounting member (706). A rotating shaft is rotatably connected between the two groups of mounting members (706). A plurality of flip plates (707) are fixedly installed on the rotating shaft.

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