Pickling device for PCB production

Abstract

The utility model belongs to the field of PCB (Printed Circuit Board) production, and discloses a pickling device for PCB production, which comprises a box body device for providing a semi-closed pickling environment, and further comprises a conveying device which is arranged in the box body device and is used for driving a PCB to circularly rotate for pickling, and a plurality of fixing devices for clamping the PCB are arranged on the conveying device. The conveying device comprises a main transmission shaft, an auxiliary transmission shaft is arranged on one side of the main transmission shaft, a driving belt wheel is installed on the main transmission shaft, a driven belt wheel is installed on the auxiliary transmission shaft, and a transmission belt is installed between the driving belt wheel and the driven belt wheel. According to the pickling device for PCB production, the PCB is circularly soaked and pickled, so that the time for taking, placing and replacing the PCB is shortened, and the pickling efficiency is improved; the movable base is adjusted in a sliding mode through the arrangement of the guide grooves, and the PCBs of different sizes can be conveniently clamped and fixed through the ejector blocks; and the PCB is driven by the transmission belt to continuously move in the pickling liquid, so that the pickling sufficiency is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of PCB circuit board production, in particular to a pickling device for PCB circuit board production. Background Art

[0002] PCB, whose Chinese name is printed circuit board, is also called printed circuit board. It is an important electronic component, a support for electronic components, and a carrier for the electrical connection of electronic components. During the manufacturing process of PCB circuit boards, solder joints will be distributed on their surface, and the welding solder joints and solder slag falling on the PCB need to be removed by cleaning later.

[0003] In contrast, a Chinese patent with announcement number CN212652291U discloses a pickling device for PCB circuit board production, which is characterized in that it includes a shell, a roller is movably connected to the inside of the shell, a sealing mechanism is provided on the front and back of the inside of the shell, a reduction motor is fixedly connected to the front of the shell, a rotating shaft of the reduction motor extends to the inside of the shell and is fixedly connected to the front of the roller, and the back of the roller extends to the outside of the shell and is fixedly connected to a pulley.

[0004] However, the above patent cannot guarantee the continuity of its operation during the pickling process, requires frequent placement of circuit boards, and cannot fully pickle circuit boards of different specifications and sizes, so a new device must be designed. Utility Model Content

[0005] The purpose of the utility model is to provide a pickling device for PCB circuit board production to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pickling device for PCB circuit board production, comprising a box device for providing a semi-enclosed pickling environment, and also comprising a conveying device installed in the box device for driving the PCB circuit board to circulate and rotate for pickling, wherein the conveying device is equipped with a plurality of fixing devices for clamping the PCB circuit board, the conveying device comprises a transmission motor, a main transmission shaft is installed at the output end of the transmission motor, a secondary transmission shaft is arranged on one side of the main transmission shaft, a driving pulley is installed on the main transmission shaft, a driven pulley is installed on the secondary transmission shaft, and a transmission belt is installed between the driving pulley and the driven pulley; the fixing device comprises a plurality of connecting rods, a guide groove is arranged on the surface of the connecting rod, two movable bases are arranged in the guide groove, a top block is arranged on the top of the movable base, and a locking nail is arranged on one side of the movable base.

[0008] Furthermore: the box device includes a shell, a pickling tank is arranged at the bottom of the shell, a liquid inlet pipe is arranged at the top of the pickling tank, a liquid discharge pipe is arranged at the bottom of the pickling tank, a power box is installed in front of the shell, and a control panel is installed on the power box.

[0009] Furthermore: the surface of the pickling tank is coated with acid-resistant and anti-corrosion paint, and the pickling tank is made of 304 stainless steel.

[0010] Furthermore: two of the driving pulleys are symmetrically installed on the main transmission shaft, and two of the driven pulleys are symmetrically installed on the auxiliary transmission shaft.

[0011] Furthermore: the connecting rod and the transmission belt are riveted together, and the transmission belt type is a common V-belt.

[0012] Furthermore: the top block is made of acid-resistant fluorosilicone rubber material, and the top block is connected to the movable base with bolts.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By setting the PCB board for cyclic immersion and pickling, the time for picking up and replacing the board is reduced and the pickling efficiency is improved;

[0015] 2. The guide groove is set to slide and adjust the movable base, so that the top block can clamp and fix PCB circuit boards of different sizes;

[0016] 3. The PCB circuit board is driven by the transmission belt to move continuously in the pickling liquid to ensure the adequacy of the pickling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a pickling device for PCB circuit board production described in the utility model;

[0018] Figure 2 This is an axonometric diagram of a box device of a pickling device for PCB circuit board production described in the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of a conveying device of a pickling device for PCB circuit board production described in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of a fixing device of a pickling device for PCB circuit board production described in the utility model;

[0021] In the accompanying drawings: 1. box device; 101. shell; 102. pickling tank; 103. liquid inlet pipe; 104. liquid discharge pipe; 105. power box; 106. control panel; 2. conveying device; 201. transmission motor; 202. main transmission shaft; 203. auxiliary transmission shaft; 204. driving pulley; 205. driven pulley; 206. transmission belt; 3. fixing device; 301. connecting rod; 302. guide groove; 303. movable base; 304. top block; 305. locking nail. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 A pickling device for PCB circuit board production includes a box device 1 for providing a semi-closed pickling environment, and also includes a conveying device 2 installed in the box device 1 for driving the PCB circuit board to circulate and pickle, and a plurality of fixing devices 3 for clamping the PCB circuit board are installed on the conveying device 2.

[0024] In this embodiment: the box device 1 includes a shell 101, a pickling tank 102 is arranged at the bottom of the shell 101, a liquid inlet pipe 103 is arranged at the top of the pickling tank 102, a liquid discharge pipe 104 is arranged at the bottom of the pickling tank 102, a power box 105 is installed in front of the shell 101, and a control panel 106 is installed on the power box 105. The surface of the pickling tank 102 is coated with acid-resistant and anti-corrosion paint. The pickling tank 102 is made of 304 stainless steel. The liquid inlet pipe 103 and the liquid discharge pipe 104 are arranged through the surgery and the pickling tank 102. The pickling liquid is passed into the pickling tank 102 through the liquid inlet pipe 103. After the pickling is completed, the waste liquid is discharged from the liquid discharge pipe 104. The power box 105 is bolted to the shell 101, and the control panel 106 controls the power on and off;

[0025] In this embodiment: the conveying device 2 includes a transmission motor 201, a main transmission shaft 202 is installed at the output end of the transmission motor 201, a secondary transmission shaft 203 is arranged on one side of the main transmission shaft 202, a driving pulley 204 is installed on the main transmission shaft 202, a driven pulley 205 is installed on the secondary transmission shaft 203, a transmission belt 206 is installed between the driving pulley 204 and the driven pulley 205, two driving pulleys 204 are symmetrically installed on the main transmission shaft 202, and two driven pulleys 205 are symmetrically installed on the secondary transmission shaft 203. The transmission motor 201 drives the driving pulley 204 through the main transmission shaft 202, and the driving pulley 204 drives the driven pulley 205 located on the secondary transmission shaft 203 to rotate through the transmission belt 206;

[0026] In this embodiment: the fixing device 3 includes a plurality of connecting rods 301, the surface of the connecting rod 301 is provided with a guide groove 302, two mobile bases 303 are installed in the guide groove 302, a top block 304 is installed on the top of the mobile base 303, a locking nail 305 is provided on one side of the mobile base 303, the connecting rod 301 is riveted with the transmission belt 206, the transmission belt 206 is a common V-belt, the top block 304 is made of acid-resistant fluorosilicone rubber material, the top block 304 is bolted to the mobile base 303, the guide groove 302 on the connecting rod 301 limits the mobile base 303, by adjusting the position of the mobile base 303 in the guide groove 302, the top block 304 on the mobile base 303 clamps the PCB circuit board, and the locking nail 305 fixes the position of the mobile base 303;

[0027] Working principle: First, close the drain pipe 104, and let the pickling liquid pass into the pickling tank 102 at the bottom of the shell 101 through the liquid inlet pipe 103 on one side of the shell 101. Then, slide the movable base 303 along the guide groove 302 on the surface of the connecting rod 301, adjust the position of the top block 304, and the top block 304 clamps the PCB circuit board to be pickled and tightens the locking pin 305. Start the power box 105 through the control panel 106 on the power box 105, and the transmission motor 201 starts working. The main The transmission shaft 202 drives the active pulley 204, and the main transmission shaft 202 drives the active pulley 204 to rotate and push the transmission belt 206 to move in a circular motion under the support of the driven pulley 205 on the secondary transmission shaft 203, and then the transmission belt 206 drives the connecting rod 301 to rotate, and the PCB circuit board located on the connecting rod 301 is immersed in the pickling liquid, and the PCB circuit board is pickled. During the pickling process, the PCB circuit board continues to move in the pickling liquid, which can flush the welding slag on the PCB circuit board. After the pickling is completed, the waste liquid is discharged through the drain pipe 104.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pickling device for PCB circuit board production, comprising a box device (1) for providing a semi-enclosed pickling environment, characterized in that: It also includes a conveying device (2) installed in the box device (1) and used to drive the PCB circuit board to circulate and rotate for pickling, and a plurality of fixing devices (3) for clamping the PCB circuit board are installed on the conveying device (2); The conveying device (2) comprises a transmission motor (201), a main transmission shaft (202) is installed at the output end of the transmission motor (201), a secondary transmission shaft (203) is arranged on one side of the main transmission shaft (202), a driving pulley (204) is installed on the main transmission shaft (202), a driven pulley (205) is installed on the secondary transmission shaft (203), and a transmission belt (206) is installed between the driving pulley (204) and the driven pulley (205); The fixing device (3) comprises a plurality of connecting rods (301), the surface of the connecting rods (301) is provided with a guide groove (302), two movable bases (303) are installed in the guide groove (302), a top block (304) is installed on the top of the movable base (303), and a locking nail (305) is provided on one side of the movable base (303).

2. A pickling device for PCB circuit board production according to claim 1, characterized in that: The box device (1) comprises a shell (101), a pickling tank (102) is arranged at the bottom of the shell (101), a liquid inlet pipe (103) is arranged at the top of the pickling tank (102), and a liquid discharge pipe (104) is arranged at the bottom of the pickling tank (102); a power box (105) is installed in front of the shell (101), and a control panel (106) is installed on the power box (105).

3. A pickling device for PCB circuit board production according to claim 2, characterized in that: The surface of the pickling tank (102) is coated with acid-resistant and anti-corrosion paint, and the pickling tank (102) is made of 304 stainless steel.

4. A pickling device for PCB circuit board production according to claim 1, characterized in that: The main transmission shaft (202) is symmetrically mounted with two driving pulleys (204), and the secondary transmission shaft (203) is symmetrically mounted with two driven pulleys (205).

5. A pickling device for PCB circuit board production according to claim 1, characterized in that: The connecting rod (301) and the transmission belt (206) are riveted together, and the transmission belt (206) is a common V-belt.

6. A pickling device for PCB circuit board production according to claim 1, characterized in that: The top block (304) is made of acid-resistant fluorosilicone rubber material, and the top block (304) is connected to the movable base (303) by bolts.

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