CN216087148U

CN216087148U - Surface treatment device for printed circuit board

Info

Publication number: CN216087148U
Application number: CN202122190329.7U
Authority: CN
Inventors: 龙海军; 刘平
Original assignee: Wuhan Yingrun Electronic Technology Co ltd
Current assignee: Wuhan Yingrun Electronic Technology Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-03-18
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses a surface treatment device for a printed circuit board, which belongs to the technical field of surface treatment of circuit boards and comprises a box body, wherein a material box is fixedly arranged at the top of the box body, storage boxes are fixedly arranged on two sides of the box body, an air suction mechanism is arranged in an inner cavity of each storage box, a spraying mechanism is arranged in the inner cavity of the box body, support frames are fixedly arranged on the front side and the rear side of the bottom of each side of the box body, a driving wheel and an auxiliary wheel are respectively supported by bearings at two ends of the inner side of each support frame, a driving motor is fixedly arranged on the back surface of each support frame, and an output shaft of each driving motor penetrates through each support frame and extends to the inner side of each support frame to be fixedly arranged with the back surface of the driving wheel; through the setting of conveyer belt, fixed plate, buffer gear and stop gear, can carry out the centre gripping to the circuit board and fix, prevent that the circuit board from appearing the displacement at the in-process that removes, increased the stability of circuit board, improved the qualification rate of circuit board tin spraying.

Description

Surface treatment device for printed circuit board

Technical Field

The utility model relates to the technical field of surface treatment of circuit boards, in particular to a surface treatment device for a printed circuit board.

Background

Printed circuit boards, also known as printed circuit boards, are providers of electrical connections for electronic components and are classified into single-sided boards, double-sided boards, four-sided boards, six-sided boards, and other multi-layered boards according to the number of layers of the boards.

CN202020837958.7 discloses printed circuit board surface treatment's equipment, including the main part case, the inside of main part case is provided with the paint spraying groove, the both sides in paint spraying groove are provided with the collecting box, the inside of collecting box is provided with the collecting vat, the inside of collecting vat is fixed with the air exhauster. The utility model is provided with a limiting plate, a conveyor belt, an electric push rod and a spray head, wherein a circuit board is placed on the conveyor belt, the limiting plate limits the circuit board, the circuit board is prevented from deviating in the conveying process, the subsequent tin spraying and hot air leveling are influenced, the electric push rod is controlled by a control panel to put down a movable plate, the spray head is opened to spray tin on the moving circuit board, a collecting tank and an exhaust fan are arranged, exhaust gas generated in the working process is collected into the collecting tank for centralized treatment by opening the exhaust fan, and a certain amount of harmful gas mainly lead generated in the tin spraying process is prevented from polluting the working environment and threatening the health of workers.

Lack in the above-mentioned patent and carry out effectual spacing to the circuit board, just carry on spacingly to it through the stopper, and the stopper is fixed, so the circuit board makes the circuit board slide in the inboard of stopper easily at the in-process that removes, the displacement appears, the influence carries out the precision of tin spraying to it, has reduced the qualification rate, consequently, we need provide a surface treatment device for printed circuit board.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a surface treatment device for a printed circuit board, which can clamp and fix a moving circuit board, and avoid displacement of the circuit board during movement, so as to solve the problems of the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a surface treatment device for a printed circuit board comprises a box body, wherein the top of the box body is fixedly provided with a feed box, the two sides of the box body are both fixedly provided with storage boxes, the inner cavity of each storage box is provided with a suction mechanism, the inner cavity of the box body is provided with a spraying mechanism, the front side and the rear side of the bottom parts of the two sides of the box body are both fixedly provided with a supporting frame, the two ends of the inner side of the supporting frame are respectively supported with a driving wheel and an auxiliary wheel by bearings, the back of the supporting frame is fixedly provided with a driving motor, an output shaft of the driving motor penetrates through the support frame and extends to the inner side of the support frame to be fixedly installed with the back of the driving wheel, the driving wheel and the auxiliary wheel are in transmission connection through a conveyor belt, and fixed plates are fixedly mounted on the front side and the rear side of the surface of the conveying belt, a buffer mechanism is arranged on the inner side of each fixed plate, and a limiting mechanism is arranged on the inner side of each buffer mechanism.

Preferably, the air suction mechanism comprises a fan, the fan is fixedly installed at the bottom of an inner cavity of the storage box, a gas collecting hood is fixedly installed in the inner cavity of the storage box and above the fan, and a one-way valve is fixedly installed at the top of the gas collecting hood.

Preferably, the spraying mechanism includes electric putter, electric putter's top and the top fixed mounting of box inner chamber, electric putter's removal end fixed mounting has the movable plate, the bottom fixed mounting of movable plate has the spray tube, the top intercommunication of spray tube has the bellows, the inner chamber that movable plate, box and workbin and extend to the workbin is run through in proper order on the top of bellows.

Preferably, the buffer mechanism comprises a pipe sleeve, the outer side of the pipe sleeve is fixedly mounted with the inner side of the fixed plate, an inner cavity of the pipe sleeve is connected with a telescopic rod in a sliding manner, the inner side of the telescopic rod penetrates through the pipe sleeve and extends to the outside of the pipe sleeve, a buffer spring is fixedly mounted on the outer side of the inner cavity of the pipe sleeve, and the inner side of the buffer spring is fixedly mounted with the outer side of the telescopic rod.

Preferably, the limiting mechanism comprises a supporting plate, the outer side of the supporting plate is fixedly installed on the inner side of the telescopic rod, a first connecting plate is fixedly installed at the center of the inner side of the supporting plate, a second connecting plate is fixedly installed at the bottom of the inner side of the supporting plate, and moving wheels are rotatably connected to the inner equal distances of the first connecting plate and the second connecting plate through bearing seats.

Preferably, limiting plates are fixedly mounted at the front end and the rear end of one side of the box body, and the outer sides of the limiting plates are in rolling connection with the moving wheels.

Preferably, the top intercommunication of workbin has the inlet pipe, and the top threaded connection of inlet pipe has sealed lid.

Preferably, the two sides of the box body are provided with openings, and the transfer belts are connected with the inner cavities of the openings in a sliding mode.

Preferably, the bottom of the inner cavity of the box body is fixedly provided with a supporting plate, and the top of the supporting plate is in sliding connection with the top of the inner side of the conveying belt.

Preferably, the four corners of the bottom of the box body are fixedly provided with supporting legs, and the bottoms of the supporting legs are fixedly provided with universal wheels.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the arrangement of the conveyor belt, the fixing plate, the buffer mechanism and the limiting mechanism, the circuit board can be clamped and fixed, the circuit board is prevented from displacement in the moving process, the stability of the circuit board is increased, and the qualification rate of tin spraying of the circuit board is improved;

2. according to the utility model, through the arrangement of the driving wheel, the auxiliary wheel, the support frame, the driving motor and the spraying mechanism, the driving wheel is driven to rotate by the driving motor, so that the circuit board on the surface of the conveyor belt can be driven to move, and when the circuit board moves below the spraying mechanism, the spraying mechanism is convenient for tin spraying;

3. according to the utility model, through the arrangement of the storage box and the air suction mechanism, the fan is started to collect waste gas generated in the work process into the storage box, so that a certain amount of harmful gas generated in the tin spraying process is prevented from polluting the working environment and threatening the health of workers.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the right-view structure of the present invention;

FIG. 3 is a schematic top view of the conveyor belt of the present invention;

FIG. 4 is a schematic top sectional view of the pipe sleeve of the present invention;

FIG. 5 is a schematic structural view of a limiting mechanism of the present invention;

FIG. 6 is a schematic view of the gas collecting channel in a bottom view;

fig. 7 is a schematic top view of the supporting frame of the present invention.

In the figure: 1. a box body; 2. a material box; 3. a storage box; 4. a suction mechanism; 5. a spraying mechanism; 6. a support frame; 7. a driving wheel; 8. an auxiliary wheel; 9. a drive motor; 10. a fixing plate; 11. a buffer mechanism; 12. a limiting mechanism; 13. a fan; 14. a gas-collecting hood; 15. an electric push rod; 16. moving the plate; 17. a nozzle; 18. a flexible hose; 19. pipe sleeve; 20. a telescopic rod; 21. a buffer spring; 22. a support plate; 23. a first connecting plate; 24. a second connecting plate; 25. and a limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a surface treatment device for a printed circuit board comprises a box body 1, a material box 2 is fixedly arranged at the top of the box body 1, storage boxes 3 are fixedly arranged on two sides of the box body 1, an air suction mechanism 4 is arranged in an inner cavity of each storage box 3, a spraying mechanism 5 is arranged in the inner cavity of the box body 1, support frames 6 are fixedly arranged on the front side and the rear side of the bottom of each side of the box body 1, a driving wheel 7 and an auxiliary wheel 8 are respectively supported by bearings at two ends of the inner side of each support frame 6, a driving motor 9 is fixedly arranged on the back of each support frame 6, an output shaft of each driving motor 9 penetrates through each support frame 6 and extends to the inner side of each support frame 6 to be fixedly arranged on the back of each driving wheel 7, each driving wheel 7 is connected with each auxiliary wheel 8 through a conveyor belt in a transmission manner, fixed plates 10 are fixedly arranged on the front side and the rear side of the surface of each conveyor belt, a buffer mechanism 11 is arranged on the inner side of each fixed plate 10, a limiting mechanism 12 is arranged on the inner side of each buffer mechanism 11, through the conveyer belt, fixed plate 10, buffer gear 11 and stop gear 12's setting, can carry out the centre gripping to the circuit board fixed, prevent that the circuit board from the displacement appearing at the in-process that removes, the stability of circuit board has been increased, the qualification rate of circuit board tin spraying has been improved, through action wheel 7, assist driving wheel 8, support frame 6, driving motor 9 and spraying mechanism 5's setting, it is rotatory to drive action wheel 7 through driving motor 9, thereby can drive the circuit board on conveyer belt surface and remove, when the circuit board removes to spraying mechanism 5 below, be convenient for carry out tin spraying to it through spraying mechanism 5, through the setting of storage box 3 and suction mechanism 4, open fan 13 and collect into storage box 3 with the waste gas that the during operation produced, prevent to spout tin in-process and produce a certain amount of harmful gas, cause the pollution to operational environment, threaten workman's health.

Referring to fig. 1, 3, 4, 5, 6 and 7, the air suction mechanism 4 includes a fan 13, the fan 13 is fixedly installed at the bottom of the inner cavity of the storage box 3, a gas collecting hood 14 is fixedly installed in the inner cavity of the storage box 3 and above the fan 13, a one-way valve is fixedly installed at the top of the gas collecting hood 14, the fan 13 is started by an external controller, harmful gas generated in the spraying process is blown into the storage box 3 by the fan 13, the harmful gas can be collected and conveniently centralized, the spraying mechanism 5 includes an electric push rod 15, the top of the electric push rod 15 is fixedly installed with the top of the inner cavity of the box 1, a movable plate 16 is fixedly installed at the moving end of the electric push rod 15, a spray pipe 17 is fixedly installed at the bottom of the electric push rod 16, the movable plate at the top of the spray pipe 17 is communicated with a flexible pipe 18, and the top end of the flexible pipe 18 sequentially penetrates through the movable plate 16, The box body 1 and the feed box 2 extend to the inner cavity of the feed box 2, the movable plate 16 is driven to move by the electric push rod 15, the movable plate 16 drives the spray pipe 17 to move, the height of the spray pipe 17 can be adjusted, and the circuit board can be conveniently subjected to tin spraying;

the buffer mechanism 11 comprises a pipe sleeve 19, the outer side of the pipe sleeve 19 is fixedly installed with the inner side of the fixed plate 10, the inner cavity of the pipe sleeve 19 is connected with a telescopic rod 20 in a sliding mode, the inner side of the telescopic rod 20 penetrates through the pipe sleeve 19 and extends to the outer part of the pipe sleeve 19, a buffer spring 21 is fixedly installed on the outer side of the inner cavity of the pipe sleeve 19, the inner side of the buffer spring 21 is fixedly installed with the outer side of the telescopic rod 20, when the conveyor belt drives the limiting mechanism 12 to move to the corresponding position of the limiting plate 25, the limiting mechanism 12 is far away from the limiting plate 25 through compressing the buffer spring 21, the far limiting mechanism 12 is convenient for placing a circuit board, when the limiting mechanism 12 is far away from the limiting plate 25, the limiting mechanism 12 is enabled to clamp the circuit board under the action force of the buffer spring 21, the stability of the circuit board is improved, and the circuit board is prevented from displacement when moving;

the limiting mechanism 12 comprises a support plate 22, the outer side of the support plate 22 is fixedly installed with the inner side of the telescopic rod 20, a first connecting plate 23 is fixedly installed at the center of the inner side of the support plate 22, a second connecting plate 24 is fixedly installed at the bottom of the inner side of the support plate 22, the inner equal distance of the first connecting plate 23 and the second connecting plate 24 is rotatably connected with a movable wheel through a bearing seat, when the limiting mechanism 12 moves to the corresponding position of the limiting plate 25, the moving wheel contacts with the outer side of the limiting plate 25, and simultaneously when the limiting mechanism 12 moves, because the limiting plate 25 is arranged obliquely, therefore, the limiting plate 25 makes the moving wheel drive the fixing plates 10 to move away, increasing the distance between the fixing plates 10, facilitating the circuit board to be placed, making the bottom of the circuit board fit with the top of the first connecting plate 23, when the limiting mechanism 12 is separated from the limiting plate 25, the circuit board is conveniently clamped and fixed through the buffer mechanism 11;

the front end and the rear end of one side of the box body 1 are fixedly provided with limiting plates 25, the outer sides of the limiting plates 25 are in rolling connection with the moving wheels, so that the limiting mechanism 12 can be far away, the circuit board can be clamped and fixed conveniently, the top of the material box 2 is communicated with a feeding pipe, the top of the feeding pipe is in threaded connection with a sealing cover, paint can be added conveniently, the two sides of the box body 1 are provided with openings, a transfer belt is in sliding connection with the inner cavity of the openings, the circuit board can be moved to the lower part of the spray pipe 17 conveniently through the openings by the transfer belt, the bottom of the inner cavity of the box body 1 is fixedly provided with a supporting plate, the top of the supporting plate is in sliding connection with the top of the inner side of the transfer belt, the transfer belt can be supported, the transfer belt is prevented from sinking when moving to the inner cavity of the box body 1, the distance between the spray pipe 17 and the circuit board is increased, the tin spraying effect on the circuit board is influenced, and the four corners of the bottom of the box body 1 are fixedly provided with supporting legs, and the bottom of the supporting leg is fixedly provided with the universal wheel, so that the device is convenient to move, and the maneuverability of the device is improved.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a surface treatment device for printed circuit board, includes box (1), the top fixed mounting of box (1) has workbin (2), the equal fixed mounting in both sides of box (1) has storage box (3), the inner chamber of storage box (3) is provided with suction mechanism (4), the inner chamber of box (1) is provided with spraying mechanism (5), the equal fixed mounting in both sides has support frame (6) around box (1) both sides bottom, the both ends difference bearing support of support frame (6) inboard has action wheel (7) and assistance wheel (8), the back fixed mounting of support frame (6) has driving motor (9), the output shaft of driving motor (9) runs through support frame (6) and extends to the inboard of support frame (6) and the back fixed mounting of action wheel (7), its characterized in that: action wheel (7) and assistance wheel (8) are connected through the conveyer belt transmission, and the equal fixed mounting in both sides has fixed plate (10) around the surface of conveyer belt, the inboard of fixed plate (10) is provided with buffer gear (11), the inboard of buffer gear (11) is provided with stop gear (12).

2. A surface treatment apparatus for a printed circuit board according to claim 1, wherein: the air suction mechanism (4) comprises a fan (13), the fan (13) is fixedly installed at the bottom of an inner cavity of the storage box (3), a gas collecting hood (14) is fixedly installed above the fan (13) in the inner cavity of the storage box (3), and a one-way valve is fixedly installed at the top of the gas collecting hood (14).

3. A surface treatment apparatus for a printed circuit board according to claim 2, wherein: spraying mechanism (5) include electric putter (15), the top of electric putter (15) and the top fixed mounting of box (1) inner chamber, the removal end fixed mounting of electric putter (15) has movable plate (16), the bottom fixed mounting of movable plate (16) has spray tube (17), the top intercommunication of spray tube (17) has bellows (18), the top of bellows (18) runs through movable plate (16), box (1) and workbin (2) in proper order and extends to the inner chamber of workbin (2).

4. A surface treatment apparatus for a printed circuit board according to claim 3, wherein: buffer gear (11) include pipe box (19), the outside of pipe box (19) and the inboard fixed mounting of fixed plate (10), the inner chamber sliding connection of pipe box (19) has telescopic link (20), the outside that pipe box (19) and extend to pipe box (19) is run through to the inboard of telescopic link (20), the outside fixed mounting of pipe box (19) inner chamber has buffer spring (21), the inboard of buffer spring (21) and the outside fixed mounting of telescopic link (20).

5. A surface treatment apparatus for a printed circuit board according to claim 4, wherein: stop gear (12) include extension board (22), the inboard fixed mounting of the outside of extension board (22) and telescopic link (20), the inboard center department fixed mounting of extension board (22) has first connecting plate (23), the inboard bottom fixed mounting of extension board (22) has second connecting plate (24), the interior equidistance of first connecting plate (23) and second connecting plate (24) is connected with through the bearing frame rotation and removes the wheel.

6. A surface treatment apparatus for a printed circuit board according to claim 5, wherein: limiting plates (25) are fixedly mounted at the front end and the rear end of one side of the box body (1), and the outer sides of the limiting plates (25) are in rolling connection with the moving wheels.

7. A surface treatment apparatus for a printed circuit board according to claim 6, wherein: the top intercommunication of workbin (2) has the inlet pipe, and the top threaded connection of inlet pipe has sealed lid.

8. A surface treatment apparatus for a printed circuit board according to claim 7, wherein: the opening has all been seted up to the both sides of box (1), and the conveyer belt and open-ended inner chamber sliding connection.

9. A surface treatment apparatus for a printed circuit board according to claim 8, wherein: the bottom of the inner cavity of the box body (1) is fixedly provided with a supporting plate, and the top of the supporting plate is connected with the top of the inner side of the conveying belt in a sliding mode.

10. A surface treatment apparatus for a printed circuit board according to claim 9, wherein: the four corners of the bottom of the box body (1) are fixedly provided with supporting legs, and the bottoms of the supporting legs are fixedly provided with universal wheels.