CN210807827U

CN210807827U - Surface treatment device for printed circuit board

Info

Publication number: CN210807827U
Application number: CN201920795958.2U
Authority: CN
Inventors: 范文斌
Original assignee: Shenzhen Huacheng Technology Co Ltd
Current assignee: Shenzhen Huacheng Technology Co Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-06-19
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a printed circuit board surface treatment device, which relates to the technical field of printed circuit boards and comprises a shell, a spraying bin, a spraying device and a water tank, wherein the spraying device is connected with the water tank through a water pipe, liquid medicine in the water tank is pumped into the spraying device through a water pump to spray the liquid medicine, the right side wall of the inner cavity of the shell is fixedly connected with a motor, the output end of the motor is fixedly connected with a transmission rod, the side wall of the connection rod is fixedly sleeved with a conversion device, the lower surface of a support plate is tightly attached with the conversion device, the conversion device in transmission connection with the transmission rod drives the support plate to move up and down in a slide way, the spraying state of the spraying device is switched through the sleeving connection of the support plate and the spraying device, a water film on the surface of the PCB is broken through columnar water flow, atomized water mist is used for coating, the production yield of the circuit board is improved.

Description

Surface treatment device for printed circuit board

Technical Field

The utility model relates to a printed circuit board technical field, specific field is a printed circuit board surface treatment device.

Background

The organic solder resist process is to form an organic protective film on the surface of the copper pad to protect the surface of the copper pad from oxidation. The existing copper protection working section is to form an organic protection film on the surface of a copper pad on a PCB by arranging a printed circuit board on a driving roller and then immersing the driving roller provided with the PCB in a medicinal liquid. However, since the PCB needs to be washed before entering the chemical solution, a water film is formed on the surface of the copper pad with a small area. In the prior art, the water film is broken by increasing the spraying force of the liquid medicine, but the splashing effect can be generated by strong impact force, so that the surface of the copper welding pad can not be comprehensively protected, an organic protective film can not be formed in partial areas, and the production quality of the PCB is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a printed circuit board surface treatment device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a printed circuit board surface treatment device comprises a shell, wherein the lower part of the shell is fixedly connected with a base, the inner part of the shell is fixedly connected with a spraying bin, the top of the spraying bin is fixedly connected with a spraying device, the right side end of the spraying device is fixedly connected with a water pipe, the water pipe penetrates through the bottom of the spraying bin and extends to the inner part of the base, a water tank is arranged inside the base, the water pipe is inserted into the water tank, the right side wall of the inner cavity of the shell is fixedly connected with a motor, the two motors are respectively positioned at the front end and the rear end of the right side wall of the shell, the output ends of the two motors are fixedly connected with transmission rods, the two transmission rods penetrate through the left side wall and the right side wall of the spraying bin and are rotatably inserted with the left side wall of the shell, the middle parts of the two transmission rods are, the lateral wall all rotates the one end of pegging graft and having the connecting rod about being located the shell of transfer line upside, the other end of connecting rod rotates with the outer wall that sprays the storehouse and pegs graft, the fixed coupling of lateral wall of connecting rod has conversion equipment, conversion equipment is connected with the transfer line transmission, the slide has all been seted up to the lateral wall about spraying the storehouse, the slide is located between spray set and the connecting rod, the inside sliding connection of slide has the backup pad, the lower surface and the conversion equipment of backup pad closely laminate, the backup pad cup joints with spray set is fixed, the opening has all been seted up at both ends around the shell.

Preferably, spray set include with spray bin top fixed connection's sump, the left side end and the water pipe fixed connection of sump, the lower surface intercommunication of sump has a plurality of spray tubes, the bottom of spray tube is equipped with the shower nozzle, the outside slip of spray tube has cup jointed the conversion cover, the bottom of conversion cover is equipped with a plurality of through-holes, every the through-hole all corresponds with the shower nozzle and sets up, the area of through-hole is greater than the area of shower nozzle, the inside fixedly connected with atomizing nozzle of through-hole, atomizing nozzle's atomizing mouth's shape is the cross, the outer wall of conversion cover is fixed cup jointed the backup pad.

Preferably, conversion equipment includes the second belt pulley with the fixed cover of connecting rod lateral wall and cup joint, the lateral wall that the transfer line is located and sprays the storehouse both sides all fixes the cover and has connect the third belt pulley, the third belt pulley passes through second belt drive with the second belt pulley to be connected, the connecting rod is close to the outer wall fixed cover that sprays the storehouse and has connect the cam, the outer wall of cam closely laminates with the lower surface of backup pad.

Preferably, a sealing strip is arranged between the conversion cover and the spray pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a printed circuit board surface treatment device, inside liquid medicine pump sending to spray set with the basin inside through the water pump, carry out spraying of liquid medicine, it rotates to drive the transfer line through the motor and rotates, it rotates to drive first belt pulley, thereby it rotates to drive first belt, make the PCB board can be at the inside removal in spraying storehouse, simultaneously through the conversion equipment who is connected with the transfer line transmission drive backup pad up-and-down motion in the slide, the state of spraying of even switching spray set that cup joints through backup pad and spray set, hit the water film on broken PCB surface with column rivers, carry out the tectorial membrane with atomizing form water smoke to PCB surface, make the PCB surface form complete organic protection film, the production yield of improvement circuit board.

Drawings

FIG. 1 is a schematic view of the main sectional structure of the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of the structure at B of FIG. 1

Fig. 4 is a schematic structural diagram of the support plate, the conversion cover, the through hole and the atomizing nozzle of the present invention.

In the figure: 1-shell, 2-base, 3-spraying bin, 4-spraying device, 41-water bin, 42-spraying pipe, 43-conversion cover, 44-through hole, 45-atomizing nozzle, 46-spray head, 5-water pipe, 6-water tank, 7-motor, 8-transmission rod, 9-first belt pulley, 10-first belt, 11-connecting rod, 12-conversion device, 121-second belt pulley, 122-third belt pulley, 123-second belt pulley, 124-cam, 13-slideway, 14-supporting plate, 15-opening and 16-sealing strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a printed circuit board surface treatment device comprises a shell 1, wherein the lower part of the shell 1 is fixedly connected with a base 2, the inner part of the shell 1 is fixedly connected with a spraying bin 3, the top part of the spraying bin 3 is fixedly connected with a spraying device 4, the right side end of the spraying device 4 is fixedly connected with a water pipe 5, the water pipe 5 penetrates through the bottom part of the spraying bin 3 and extends into the base 2, a water tank 6 is arranged inside the base 2, a water pump is arranged inside the water tank 6, the water outlet end of the water pump is connected with the water pipe 5, the water pump is externally connected with a power supply, the water pipe 5 is inserted into the water tank 6, the right side wall of the inner cavity of the shell 1 is fixedly connected with a motor 7, the number of the motors 7 which are externally connected with the power supply is two, the motors 7 are respectively positioned at the front end and the rear end of the right side wall of the shell 1, the output ends of the two motors 7 are both, two the fixed cover in middle part of transfer line 8 has been connect first belt pulley 9, two first belt pulley 9 is connected through the transmission of first belt 10, and the lateral wall all rotates the one end that pegs graft and have connecting rod 11 about being located shell 1 of transfer line 8 upside, the other end of connecting rod 11 rotates with the outer wall that sprays storehouse 3 and pegs graft, the fixed cover of lateral wall of connecting rod 11 has been connect conversion equipment 12, conversion equipment 12 is connected with the transmission of transfer line 8, spray storehouse 3 about the lateral wall all seted up slide 13, slide 13 is located between spray set 4 and the connecting rod 11, the inside sliding connection of slide 13 has backup pad 14, the lower surface and the conversion equipment 12 of backup pad 14 closely laminate, backup pad 14 and spray set 4 fixed cup joint, opening 15 has all been seted up at both ends around shell 1.

Inside liquid medicine pump sending the inside liquid medicine pump in basin 6 to spray set 4 through the water pump, carry out spraying of liquid medicine, rotate through motor 7 and drive transfer line 8 and rotate, drive first belt pulley 9 and rotate to drive first belt 10 and rotate, make the PCB board can be at the inside removal in spraying storehouse 3, drive backup pad 14 up-and-down motion in slide 13 through conversion equipment 12 of being connected with the transfer line 8 transmission simultaneously, even switch spray set 12's the state of spraying through the cup jointing of backup pad 14 with spray set 12.

Particularly, spray set 4 includes and sprays 3 top fixed connection's in storehouse sump 41, the left end and the 5 fixed connection of water pipe of sump 41, the lower surface intercommunication of sump 41 has a plurality of spray tubes 42, the bottom of spray tube 42 is equipped with shower nozzle 46, the outside slip of spray tube 42 has cup jointed conversion cover 43, the bottom of conversion cover 43 is equipped with a plurality of through-holes 44, every through-hole 44 all corresponds with shower nozzle 46 and sets up, the area of through-hole 44 is greater than the area of shower nozzle 46, the inside fixedly connected with atomizing nozzle 45 of through-hole 44, the shape of atomizing nozzle 45's atomizing mouth is the cross, the fixed cover of outer wall of conversion cover 43 has connect backup pad 14.

The water in the water tank 41 is sprayed out through the spray pipe 42 and the spray head 46, when the conversion cover 43 is located at a relatively lower position, the water sprayed out of the spray head 46 is atomized through the atomizing nozzle 45 in the through hole 44 and then sprayed out in an atomized state, when the conversion cover 43 is located at a relatively upper position, the spray head 46 penetrates through the through hole 44 to push the atomizing nozzle 45 open to directly spray out the liquid medicine, and at the moment, the liquid medicine is in a columnar shape.

Specifically, conversion equipment 12 includes the second belt pulley 121 with connecting rod 11 lateral wall fixed socket joint, the lateral wall that transfer line 8 is located and sprays 3 both sides of storehouse is all fixed the cup jointing of third belt pulley 122, third belt pulley 122 passes through second belt 123 transmission with second belt pulley 121 and is connected, connecting rod 11 is close to the fixed cam 124 that has cup jointed of outer wall that sprays storehouse 3, the outer wall of cam 124 closely laminates with the lower surface of backup pad 14.

The transmission rod 8 rotates to drive the third belt pulley 122 to rotate, the first belt pulley 121 is driven to rotate by the second belt 123, so that the connecting rod 11 is driven to rotate, the cam 124 sleeved on the outer wall of the connecting rod 11 is driven to rotate, the supporting plate 14 is jacked up when the convex part of the cam 124 rotates to be attached to the lower surface of the supporting plate 14, and the supporting plate 14 automatically falls down by gravity when the non-convex part of the cam 124 rotates to be attached to the lower surface of the supporting plate 14.

Specifically, the sealing strip 16 is provided between the conversion cover 43 and the nozzle 42 to increase the sealing effect and prevent the chemical solution from flowing out from the conversion cover 43.

The working principle is as follows: inside liquid medicine pump sending the inside liquid medicine pump in basin 6 to spray set 4 through the water pump, carry out spraying of liquid medicine, rotate through motor 7 and drive transfer line 8 and rotate, drive first belt pulley 9 and rotate to drive first belt 10 and rotate, make the PCB board can be at the inside removal in spraying storehouse 3, drive backup pad 14 up-and-down motion in slide 13 through conversion equipment 12 of being connected with the transfer line 8 transmission simultaneously, even switch spray set 12's the state of spraying through the cup jointing of backup pad 14 with spray set 12.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A printed circuit board surface treatment device comprising a housing (1), characterized in that: the lower portion of the shell (1) is fixedly connected with a base (2), the interior of the shell (1) is fixedly connected with a spraying bin (3), the top of the spraying bin (3) is fixedly connected with a spraying device (4), the right side end of the spraying device (4) is fixedly connected with a water pipe (5), the water pipe (5) penetrates through the bottom of the spraying bin (3) and extends into the base (2), a water tank (6) is arranged inside the base (2), the water pipe (5) is inserted into the water tank (6), the right side wall of the inner cavity of the shell (1) is fixedly connected with motors (7), the number of the motors (7) is two, the motors are respectively positioned at the front end and the rear end of the right side wall of the shell (1), the output ends of the two motors (7) are fixedly connected with transmission rods (8), the two transmission rods (8) penetrate through the left side wall and the right side wall of the spraying bin (3) and are rotatably inserted into the left, the middle parts of the two transmission rods (8) are fixedly sleeved with first belt pulleys (9), the two first belt pulleys (9) are in transmission connection through first belts (10), the left side wall and the right side wall of a shell (1) positioned on the upper side of the transmission rods (8) are respectively and rotatably inserted with one end of a connecting rod (11), the other end of the connecting rod (11) is rotatably inserted with the outer wall of a spraying bin (3), the side wall of the connecting rod (11) is fixedly sleeved with a conversion device (12), the conversion device (12) is in transmission connection with the transmission rods (8), the left side wall and the right side wall of the spraying bin (3) are respectively provided with a slide way (13), the slide way (13) is positioned between the spraying device (4) and the connecting rod (11), the inner part of the slide way (13) is slidably connected with a support plate (14), and the lower surface of the support plate (, the supporting plate (14) is fixedly sleeved with the spraying device (4), and openings (15) are formed in the front end and the rear end of the shell (1).

2. A printed circuit board surface treatment apparatus according to claim 1, characterized in that: spray set (4) include and spray storehouse (3) top fixed connection's sump (41), the left end and water pipe (5) fixed connection of sump (41), the lower surface intercommunication of sump (41) has a plurality of spray tubes (42), the bottom of spray tube (42) is equipped with shower nozzle (46), conversion cover (43) have been cup jointed in the outside slip of spray tube (42), the bottom of conversion cover (43) is equipped with a plurality of through-holes (44), every through-hole (44) all correspond with shower nozzle (46) and set up, the area of through-hole (44) is greater than the area of shower nozzle (46), the inside fixedly connected with atomizing nozzle (45) of through-hole (44), the shape of the atomizing mouth of atomizing nozzle (45) is the cross, the outer wall of conversion cover (43) is fixed to be cup jointed backup pad (14).

3. A printed circuit board surface treatment apparatus according to claim 1, characterized in that: conversion equipment (12) include second belt pulley (121) with connecting rod (11) lateral wall fixed socket joint, the lateral wall that transfer line (8) are located spraying storehouse (3) both sides all is fixed the socket joint third belt pulley (122), third belt pulley (122) are connected through second belt (123) transmission with second belt pulley (121), connecting rod (11) are close to the outer wall fixed socket joint cam (124) of spraying storehouse (3), the outer wall of cam (124) is closely laminated with the lower surface of backup pad (14).

4. A printed circuit board surface treatment apparatus according to claim 2, characterized in that: and a sealing strip (16) is arranged between the conversion cover (43) and the spray pipe (42).