A production device and production process for a circuit board

Abstract

The present application relates to a production device for circuit boards, comprising: a bracket; a paint spraying assembly for spraying paint on the surface of the circuit board, wherein the paint spraying assembly is provided in two groups, and the two groups of paint spraying assemblies are arranged at intervals and mounted on the bracket; a transfer assembly connected to the bracket to transfer the circuit board; a drying assembly mounted on the transfer assembly to dry the circuit board that has been painted; a flipping assembly connected to the transfer assembly to flip the circuit board, wherein the flipping assembly is located between the two groups of paint spraying assemblies, and the flipping assembly comprises: a clamping frame connected to the transfer assembly to clamp the circuit board; a flipping gear connected to the clamping frame; a flipping rack fixedly connected to the bracket and capable of engaging with the flipping gear. The production process comprises the following steps: surface treatment: applying a layer of anti-oxidation paint on the circuit board and drying it. The flipping assembly of the present application achieves the purpose of facilitating the painting of the circuit board and improving the efficiency of the painting of the circuit board.

Description

Technical Field

[0001] The present application relates to the technical field of circuit board production, and in particular to a circuit board production device and a production process thereof. Background Art

[0002] A circuit board, also known as a printed circuit board, provides a physical mounting platform for electronic components. Components can be fixed to the circuit board through soldering, plugging, and other methods, ensuring a relatively stable position within the device.

[0003] When used in a humid environment, circuit boards are susceptible to moisture. Moisture can degrade the performance of the circuit board's substrate material, affecting the normal operation of electronic components. Painting the circuit board surface is a common circuit board protection measure.

[0004] In related technology, a Chinese patent with patent publication number CN107214026A proposes a computer circuit board paint spraying device, comprising a base, a housing fixedly connected to the top of the base, a transmission device fixedly connected to the top of the housing cavity, a support rod extending through the bottom of the transmission device, a paint spraying head fixedly connected to the bottom end of the support rod, a first motor fixedly connected to one side of the housing cavity bottom, the output shaft of the first motor fixedly connected to a threaded rod via a coupling, the other end of the threaded rod rotatably connected to one side of the housing cavity, and the related field of computer technology. This computer circuit board paint spraying device solves the problem of poor environmental conditions during traditional computer circuit board painting and protects the health of workers.

[0005] Both sides of the circuit board need to be painted. When using the above-mentioned painting device, the staff needs to manually turn the circuit board over and use a clamping tool to support the circuit board so that the painting device can paint the other side of the circuit board. However, this painting method is relatively inconvenient to operate, resulting in low painting efficiency of the circuit board. Summary of the Invention

[0006] In order to improve the painting efficiency of circuit boards, the present application provides a circuit board production device and a production process thereof.

[0007] In a first aspect, the present application provides a circuit board production device, which adopts the following technical solution:

[0008] A production device for a circuit board, comprising:

[0009] Bracket;

[0010] A paint spraying assembly is used to spray paint on the surface of the circuit board. The paint spraying assembly is provided in two groups. The two groups of paint spraying assemblies are arranged at intervals and mounted on the bracket;

[0011] A transfer component connected to the bracket to transfer the circuit board;

[0012] The drying assembly is mounted on the transfer assembly to dry the painted circuit boards;

[0013] The flip assembly is connected to the transfer assembly and flips the circuit board. The flip assembly is located between the two sets of painting assemblies and includes:

[0014] A clamping frame, connected to the transfer assembly, and clamping the circuit board;

[0015] Flip the gear and connect it to the clamping frame;

[0016] The flip rack is fixedly connected to the bracket and can mesh with the flip gear.

[0017] Furthermore, the clamping frame includes:

[0018] Two clamping rods are provided, and the two clamping rods are respectively arranged on both sides of the circuit board and can move in directions close to or away from each other, wherein one of the clamping rods is connected to the transfer assembly;

[0019] There are two clamping plates, which can move towards or away from each other. The clamping rod is provided with a moving component for driving the clamping rod and the clamping plate to move synchronously.

[0020] Furthermore, the mobile components include:

[0021] There are multiple movable magnets, which are divided into two groups. One group of movable magnets is corresponding to one clamping rod. The movable magnets are connected to the corresponding clamping rods, and the movable magnets on the two clamping rods are magnetically connected.

[0022] There are four connecting rods, which are arranged in groups of two. A group of connecting rods is connected to a clamping plate, and the connecting rods and clamping rods in the same group are arranged in a one-to-one correspondence. One end of the two connecting rods in the same group is rotatably connected to the corresponding clamping plate, and the other end is rotatably connected to the corresponding clamping rod.

[0023] Furthermore, the two clamping rods are provided with an adjustment assembly for adjusting the distance between the two clamping rods, and the adjustment assembly includes:

[0024] An adjustment rack is fixedly connected to one clamping rod and slidably connected to the other clamping rod;

[0025] An adjusting gear meshes with the adjusting rack and is rotationally connected to a clamping rod that is slidingly connected to the adjusting rack;

[0026] The bracket is provided with a driving assembly for driving the adjusting gear to rotate.

[0027] Furthermore, the driving assembly includes:

[0028] A driving wheel is coaxially fixedly connected to the adjusting gear, and a plurality of teeth are fixedly connected to the side wall of the driving wheel, and the extension length of the plurality of teeth does not exceed three-quarters of the circumference of the driving wheel;

[0029] The driving rack is fixedly connected to the bracket and meshes with the teeth of the driving wheel.

[0030] Furthermore, the transport component includes:

[0031] There are two groups of transfer conveyor belts, both of which are connected to the brackets in a transmission manner and are spaced apart. The clamping rods are mounted on the two transfer conveyor belts and connected to the transfer conveyor belts.

[0032] A loading conveyor belt is transmission-connected to the bracket, the loading conveyor belt is located on the side of the paint spraying component away from the drying component, and the straight section of the loading conveyor belt away from the ground is flush with the straight section of the transfer conveyor belt;

[0033] The unloading conveyor belt is connected to the bracket in a transmission manner. The unloading conveyor belt is located on the side of the drying component away from the painting component, and is inclined toward the ground along the moving direction of the circuit board on the unloading conveyor belt.

[0034] Furthermore, two shells are fixedly connected to the bracket, and one end of each shell is fixedly connected to the bracket, and the other end is bent toward the direction close to the clamping rod and can interfere with the clamping rod. One of the shells is located above the loading conveyor belt and extends to the bottom of a paint spraying component away from the drying component, and the other shell is located above the unloading conveyor belt and extends to the bottom of a paint spraying component close to the drying component.

[0035] On the other hand, the present application provides a circuit board production device, which adopts the following technical solution:

[0036] A production process for a circuit board comprises the following steps: applying a layer of anti-oxidation paint on the circuit board and drying the surface of the circuit board using the circuit board production device.

[0037] In summary, the beneficial technical effect of the present application is that the setting of the flip component eliminates the need for workers to manually flip and re-clamp the circuit board, thereby facilitating the painting of the circuit board and improving the efficiency of painting the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0039] Figure 2It is a partial cross-sectional view of an embodiment of the present application.

[0040] Figure 3 It is a schematic diagram of the overall structure of the flip assembly in the embodiment of the present application.

[0041] Figure 4 It is a partial cross-sectional view of the flip assembly in the embodiment of the present application to illustrate the adjustment assembly.

[0042] Reference numerals: 100, bracket; 110, housing; 200, paint spray assembly; 210, nozzle plate; 211, feeding pipe; 300, transfer assembly; 310, transfer conveyor belt; 311, rotating roller; 320, feeding conveyor belt; 321, driving roller; 330, unloading conveyor belt; 331, conveying roller; 400, turning assembly; 410, clamping frame; 411, clamping rod; 412, clamping plate; 413, slider; 414, bidirectional screw; 415, rotating roller; 420, flip gear; 430, flip rack; 500, drying assembly; 600, moving assembly; 610, moving magnet; 611, buffer spring; 620, connecting rod; 700, adjusting assembly; 710, adjusting rack; 720, adjusting gear; 730, adjusting rod; 731, connecting sleeve; 732, connecting sub-rod; 733, locking bolt; 800, driving assembly; 810, driving wheel; 811, teeth; 820, driving rack; 900, receiving box. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0044] The present application embodiment discloses a circuit board production device. Figure 1 The production device includes a bracket 100, a paint spraying component 200, a transfer component 300, a turning component 400 and a drying component 500.

[0045] The bracket 100 is erected on the ground and fixedly connected to the ground. The paint spraying assembly 200 is used to spray paint on the surface of the circuit board. The paint spraying assembly 200 is provided in two groups. The two groups of paint spraying assemblies 200 are arranged in sequence along the moving direction of the circuit board and are spaced apart. Both groups of paint spraying assemblies 200 include a nozzle plate 210 and a plurality of nozzles. The nozzle plate 210 is fixedly connected to the bracket 100 and erected above the transfer assembly 300. A cavity is provided on the nozzle plate 210. The side of the nozzle plate 210 away from the ground is connected to a feeding pipe 211 for feeding paint. The side of the feeding pipe 211 away from the nozzle plate 210 is connected to a accommodating device for holding paint through a pump. The plurality of nozzles are connected to the side of the nozzle plate 210 away from the feeding pipe 211 and are connected to the cavity, and the nozzles of the nozzles are arranged facing the ground.

[0046] The two paint spraying assemblies 200 are arranged in the direction of movement of the circuit boards, namely the first and second paint spraying assemblies. The drying assembly 500 is a drying box, located on the side of the second paint spraying assembly away from the first. The transfer assembly 300 passes through the drying box, moving the circuit boards through the drying box so that the drying box can dry the painted circuit boards.

[0047] Reference Figure 2 The transfer assembly 300 includes a transfer conveyor belt 310, a loading conveyor belt 320, and a discharge conveyor belt 330. Two transfer conveyor belts 310 are provided, spaced apart, and both are in transmission connection with the support 100. A plurality of rotating rollers 311 are fixedly connected to the support 100. The plurality of rotating rollers 311 are divided into two groups, one group of rotating rollers 311 corresponding to each transfer conveyor belt 310. The two groups of rotating rollers 311 are spaced apart, and the ends of the two groups of rotating rollers 311 facing away from each other are both rotatably connected to the support 100. The transfer conveyor belt 310 is sleeved around the outer sides of the corresponding rotating rollers 311, thereby achieving a transmission connection between the transfer conveyor belt 310 and the support 100. A rotating roller 311 at the end of the transfer conveyor belt 310 is coaxially fixedly connected to the output shaft of a transfer motor, and the body of the rotating motor is fixedly connected to the support 100, so that the rotating motor drives the corresponding rotating roller 311 to rotate, thereby operating the transfer conveyor belt 310.

[0048] The loading conveyor belt 320 is in driving connection with the bracket 100. The loading conveyor belt 320 is located on the side of the first paint spraying assembly 200 facing away from the second paint spraying assembly 200. The loading conveyor belt 320 is located between the two sets of transfer conveyor belts 310, and the straight section of the loading conveyor belt 320 that is off the ground is aligned with the straight section of the transfer conveyor belt 310 that is off the ground. A plurality of drive rollers 321 are rotatably connected to the bracket 100. The loading conveyor belt 320 is sleeved around the outer sides of the plurality of drive rollers 321 to achieve a driving connection between the loading conveyor belt 320 and the bracket 100. A drive roller 321 at the end of the loading conveyor belt 320 is coaxially fixedly connected to the output shaft of a loading motor. The body of the loading motor is fixedly connected to the bracket 100, thereby enabling the loading motor to drive the corresponding drive roller 321 to rotate, thereby driving the loading conveyor belt 320.

[0049] The discharge conveyor belt 330 is in transmission connection with the support 100. It is located on the side of the drying assembly 500 facing away from the paint spraying assembly 200 and between the two sets of transfer conveyor belts 310. The straight section of the transfer conveyor belt 310 and the straight section of the discharge conveyor belt 330, located near the ground, are arranged in sequence, with a spacing no less than the thickness of the circuit board. This prevents circuit boards from being further moved by the transfer conveyor belt 310 after they fall onto the discharge conveyor belt 330. Multiple conveyor rollers 331 are rotatably connected to the support 100, and the discharge conveyor belt 330 is sleeved on these conveyor rollers 331 to achieve transmission connection between the discharge conveyor belt 330 and the support 100. A conveyor roller 331 at the end of the discharge conveyor belt 330 is coaxially and fixedly connected to the output shaft of a discharge motor, and the body of the discharge motor is fixedly connected to the support 100. Along the moving direction of the circuit boards on the unloading conveyor belt 330 , the unloading conveyor belt 330 is tilted toward the ground.

[0050] A receiving box 900 is placed on the ground. The receiving box 900 is located directly below the end of the unloading conveyor belt 330 close to the ground, so that the receiving box 900 can receive the circuit boards that fall from the unloading conveyor belt 330. In order to cushion the falling of the circuit boards, an air bag is provided at the bottom of the receiving box 900.

[0051] Reference Figure 2 and Figure 3, the flip assembly 400 is used to clamp the circuit board. The flip assembly 400 includes a clamping frame 410, a flip gear 420 and a flip rack 430. The clamping frame 410 includes two clamping rods 411 and two clamping plates 412. The two clamping rods 411 are respectively arranged on both sides of the circuit board and can move in the direction of approaching or moving away from each other. The two clamping rods 411 are mounted between the two transfer conveyor belts 310, and the two clamping rods 411 are divided into a first clamping rod and a second clamping rod. The first clamping rod is rotatably connected to the transfer conveyor belt 310, and the second clamping rod is overlapped on the two transfer conveyor belts 310. The two clamping plates 412 are respectively arranged at both ends of the circuit board, so that the clamping plates 412 and the clamping rods 411 are arranged along the circumference of the circuit board to clamp the circuit board. To prevent the circuit board from falling off the clamping frame 410, rubber pads are fixedly connected to the clamping plate 412 and the clamping rod 411 on the side closest to the circuit board to increase the friction between the circuit board and the clamping frame 410. The two clamping plates 412 can move toward or away from each other, and the clamping rod 411 is provided with a moving assembly 600 for driving the clamping rod 411 and the clamping plate 412 to move synchronously.

[0052] The movable assembly 600 includes a movable magnet 610 and a connecting rod 620. There are multiple movable magnets 610. In this embodiment, there are four movable magnets 610. The four movable magnets 610 are arranged in groups of two, and each group of movable magnets 610 is arranged corresponding to a clamping rod 411. The movable magnets 610 are fixedly connected to the corresponding clamping rod 411, and the movable magnets 610 in the same group are arranged on both sides of the circuit board. The movable magnets 610 on the two clamping rods 411 are arranged opposite each other and magnetically connected. There are four connecting rods 620. The connecting rods 620 are arranged in groups of two, and each group of connecting rods 620 is connected to a clamping plate 412. The connecting rods 620 in the same group are arranged one-to-one with the clamping rod 411. The two connecting rods 620 in the same group are arranged tilted, and the tilting directions are opposite. The two connecting rods 620 in the same group are each rotatably connected to the corresponding clamping plate 412 at one end and rotatably connected to the corresponding clamping rod 411 at the other end.

[0053] To adapt the clamping frame 410 to clamp circuit boards of varying sizes, two sliders 413 are slidably connected to the clamping rods 411 and 411. These sliders 413 correspond one-to-one with the connecting rods 620 and are rotationally connected to the corresponding connecting rods 620. A bidirectional lead screw 414 is rotatably connected to the clamping rod 411. The two sliders 413 are threadedly connected to the lead screw, allowing the two sliders 413 to move toward or away from each other synchronously when the lead screw 414 rotates. A roller 415 is coaxially fixedly connected to the lead screw 414. The side of the roller 415 facing away from the ground protrudes from the clamping rod 411, allowing a worker to rotate the roller 415 to achieve rotation of the lead screw 414.

[0054] When the staff puts the circuit board between the clamping rod 411 and the clamping plate 412, the movable magnets 610 on the two clamping rods 411 attract each other, thereby driving the second clamping rod to move closer to the first clamping rod until the clamping rod 411 and the clamping plate 412 both contact the side of the circuit board to complete the clamping of the circuit board.

[0055] In order to reduce the impact on the circuit board when the clamping rod 411 and the clamping plate 412 collide with the circuit board, a buffer spring 611 is fixedly connected to the movable magnet 610 on the first clamping rod, and the buffer spring 611 can collide with the movable magnet 610 on the second clamping rod.

[0056] Reference Figure 2 and Figure 4 The two clamping rods 411 are provided with adjustment assemblies 700 for adjusting the spacing between the two clamping rods 411. Two sets of adjustment assemblies 700 are provided, one on each side of the circuit board. Each adjustment assembly 700 includes an adjustment rack 710 and an adjustment gear 720. The adjustment gear 720 is rotatably connected to the first clamping rod. The adjustment rack 710 is fixedly connected to the second clamping rod via an adjustment rod 730 and is slidably connected to the first clamping rod. The adjustment gear 720 meshes with the adjustment rack 710. The bracket 100 is provided with a drive assembly 800 for driving the adjustment gear 720 to rotate. The drive assembly 800 includes a drive wheel 810 and a drive rack 820. The drive wheel 810 is coaxially fixedly connected to the adjustment gear 720. A plurality of teeth 811 are fixedly connected to the outer peripheral wall of the drive wheel 810. The plurality of teeth 911 extend no longer than three-quarters of the circumference of the drive wheel 810. In this embodiment, the plurality of teeth 911 extend for three-quarters of the length of the drive wheel 810. Two drive racks 810 are provided. Both drive racks 810 are fixedly connected to the bracket 100 and are located along the movement path of the drive wheel 810, capable of meshing with the teeth of the drive wheel 810. One drive rack 820 is located on the side of the drying assembly 500 facing away from the paint spraying assembly 200 and above the unloading conveyor 330. The other drive rack 810 is located on the side of the first paint spraying assembly facing away from the drying assembly 500 and above the loading conveyor 320.

[0057] To further adapt the clamping frame 410 to clamp circuit boards of different sizes, the adjustment rod 730 is a telescopic rod. The adjustment rod 730 includes a connecting sleeve 731 and a connecting sub-rod 732. The connecting sleeve 731 is fixedly connected to the second clamping rod 411. One end of the connecting sub-rod 732 is slidably connected to the second clamping rod 411, and the other end is slidably connected to the connecting sleeve 731. The connecting sleeve 731 is provided with a locking bolt 733 for locking the sliding size of the connecting sub-rod 732. The locking bolt 733 is threadedly connected to the connecting sleeve 731 and contacts the connecting sub-rod 732.

[0058] To prevent the clamping frame 410 from rotating when the drive rack 820 rotates the drive wheel 810, a housing 110 is fixedly connected to the bracket 100. Two housings 110 are provided, one of which is located above the loading conveyor 320 and extends below the paint spraying plate of the first paint spraying assembly 200; the other housing 110 is located below the paint spraying plate of the second paint spraying assembly 200 and extends above the unloading conveyor 330. Both housings 110 are fixedly connected to the bracket 100 on one side, and the other side is bent toward the clamping rod 411 and can contact the clamping rod 411. Therefore, the housings 110 can not only limit the clamping rod 411, but also protect the drive assembly 800 to prevent paint from being sprayed on the drive assembly 800.

[0059] Based on the above production device, this embodiment further proposes a production process for a circuit board, which includes the following steps: surface treatment: coating a layer of anti-oxidation paint on the circuit board.

[0060] The implementation principle of the circuit board production device of the embodiment of the present application is as follows: when the transfer conveyor belt 310 drives the clamping frame 410 to move above the loading conveyor belt 320, the teeth 811 of the driving wheel 810 engage with the driving rack 820, thereby causing the driving wheel 810 to rotate, and at the same time, the adjusting gear 720 rotates and drives the adjusting rack 710 to move the second clamping rod 411 in a direction away from the first clamping rod 411, thereby increasing the distance between the two clamping rods 411 and increasing the distance between the two clamping plates 412. The distance between the two ends of the circuit board increases. At this time, the staff places the circuit board between the clamping plate 412 and the clamping rod 411. When the loading conveyor belt 320 drives the circuit board to continue to move, and the transfer conveyor belt 310 drives the clamping frame 410 to continue to move, the meshing state between the teeth 811 of the drive wheel 810 and the drive rack 820 is gradually released. The two clamping rods 411 move toward each other under the suction force of the moving magnet 610 until the clamping rod 411 and the clamping plate 412 both contact the side of the circuit board, completing the clamping of the circuit board. When the transfer conveyor belt 310 continues to run, the transfer conveyor belt 310 drives the circuit board into the bottom of the first spray painting assembly 200 for spraying.

[0061] When one side of the circuit board is painted, the transfer conveyor 310 drives the circuit board to a position where the flip gear 420 and the flip rack 430 are engaged, so that the flip gear 420 rotates under the action of the flip rack 430 and drives the clamping frame 410 to turn the circuit board over.

[0062] After the circuit board is turned over, the transfer conveyor 310 drives the circuit board into the second painting assembly 200 for painting, and then into the drying assembly 500 for drying;

[0063] After the circuit board is dried, the transfer conveyor belt 310 drives the circuit board to move above the unloading conveyor belt 330. At this time, the teeth 811 of the driving wheel 810 engage with the driving rack 820 at this position, so that the driving wheel 810 rotates and drives the adjusting gear 720 to rotate, thereby driving the adjusting rack 710 to make the second clamping rod 411 move away from the first clamping rod 411, thereby increasing the distance between the two clamping rods 411 and the distance between the two clamping plates 412. The circuit board falls from the clamping frame 410 to the unloading conveyor belt 330, and enters the receiving box 900 under the action of the unloading conveyor belt 330, thereby completing the processing of the circuit board.

[0064] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A circuit board production device, characterized in that: include: Bracket (100); A paint spraying assembly (200) is used to spray paint on the surface of the circuit board, wherein two groups of the paint spraying assemblies (200) are provided, and the two groups of paint spraying assemblies (200) are arranged at intervals and mounted on the bracket (100); A transfer assembly (300) connected to the bracket (100) for transferring the circuit board; A drying component (500) is mounted on the transfer component (300) to dry the painted circuit board; The flipping assembly (400) is connected to the transfer assembly (300) and flips the circuit board. The flipping assembly (400) is located between the two sets of spray painting assemblies (200), and the flipping assembly (400) includes: A clamping frame (410) is connected to the transfer assembly (300) and clamps the circuit board; A flip gear (420) connected to the clamping frame (410); A flip rack (430) is fixedly connected to the bracket (100) and is capable of meshing with the flip gear (420); The clamping frame (410) comprises: Two clamping rods (411) are provided. The two clamping rods (411) are respectively provided on both sides of the circuit board and are capable of moving in directions of approaching or moving away from each other. One of the clamping rods (411) is connected to the transfer assembly (300); Two clamping plates (412) are provided, and the two clamping plates (412) can move toward or away from each other. The clamping rod (411) is provided with a moving assembly (600) for driving the clamping rod (411) and the clamping plates (412) to move synchronously. The moving assembly (600) comprises: A plurality of movable magnets (610) are provided, and the plurality of movable magnets (610) are divided into two groups, and one group of movable magnets (610) is provided corresponding to one clamping rod (411), the movable magnets (610) are connected to the corresponding clamping rod (411), and the movable magnets (610) on the two clamping rods (411) are magnetically connected; Four connecting rods (620) are provided. The connecting rods (620) are arranged in pairs. One group of connecting rods (620) is connected to a clamping plate (412). The connecting rods (620) and the clamping rods (411) in the same group are arranged in a one-to-one correspondence. The two connecting rods (620) in the same group are both rotatably connected to the corresponding clamping plate (412) at one end and rotatably connected to the corresponding clamping rod (411) at the other end. The two clamping rods (411) are provided with an adjustment assembly (700) for adjusting the distance between the two clamping rods (411), and the adjustment assembly (700) includes: An adjusting rack (710) is fixedly connected to one clamping rod (411) and slidably connected to another clamping rod (411); An adjusting gear (720) meshes with the adjusting rack (710) and is rotationally connected to a clamping rod (411) that is slidingly connected to the adjusting rack (710); The bracket (100) is provided with a driving assembly for driving the adjusting gear (720) to rotate; The driving assembly (800) comprises: A driving wheel (810) is coaxially fixedly connected to the adjusting gear (720), and a plurality of teeth (811) are fixedly connected to the peripheral side wall of the driving wheel (810), and the extension length of the plurality of teeth (811) does not exceed three quarters of the circumference of the driving wheel (810); The driving rack (820) is fixedly connected to the bracket (100) and meshes with the teeth (811) of the driving wheel (810).

2. A circuit board production device according to claim 1, characterized in that: The transport assembly (300) comprises: Two groups of transfer conveyor belts (310) are provided. Both groups of transfer conveyor belts (310) are connected to the bracket (100) in a transmission manner and are spaced apart. The clamping rod (411) is mounted on the two transfer conveyor belts (310) and is connected to the transfer conveyor belts (310). A loading conveyor belt (320) is connected to the bracket (100) in a transmission manner. The loading conveyor belt (320) is located on a side of the paint spraying assembly (200) away from the drying assembly (500), and a straight section of the loading conveyor belt (320) away from the ground is flush with the straight section of the transfer conveyor belt (310); A discharge conveyor belt (330) is connected to the bracket (100) in a transmission manner. The discharge conveyor belt (330) is located on a side of the drying component (500) away from the painting component (200), and along the moving direction of the circuit board on the discharge conveyor belt (330), the discharge conveyor belt (330) is inclined in a direction close to the ground.

3. The circuit board production device according to claim 2, characterized in that: Two shells (110) are fixedly connected to the bracket (100), and one side of each of the shells (110) is fixedly connected to the bracket (100), and the other end is bent toward the direction close to the clamping rod (411) and can contact the clamping rod (411). One of the shells (110) is located above the loading conveyor belt and extends to the bottom of a paint spraying component (200) away from the drying component (500), and the other shell (110) is located above the unloading conveyor belt (330) and extends to the bottom of a paint spraying component (200) close to the drying component (500).

4. A production process for a circuit board, characterized in that: The method comprises the following steps: using the circuit board production device according to any one of claims 1 to 3 to perform surface treatment on the circuit board: coating a layer of anti-oxidation paint on the circuit board and drying the layer.

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