CN216245132U

CN216245132U - Cleaning and drying equipment for circuit board production

Info

Publication number: CN216245132U
Application number: CN202122862362.XU
Authority: CN
Inventors: 李晓知; 叶松林; 杨庆全; 左江华
Original assignee: Shenzhen China Electronics Co ltd
Current assignee: Shenzhen China Electronics Co ltd
Priority date: 2021-11-20
Filing date: 2021-11-20
Publication date: 2022-04-08
Anticipated expiration: 2031-11-20

Abstract

The application relates to a circuit board production is with wasing and drying equipment, it is including wasing chamber, stoving chamber, setting up in the wiper mechanism who washs the intracavity and setting up in the stoving mechanism of stoving intracavity, wash the chamber and all be provided with the conveying mechanism that dirver circuit board removed in the stoving intracavity, the wiper mechanism is including setting up in a plurality of shower nozzles that wash the intracavity and being used for the water pump that the drive fluid flows, the delivery port and the shower nozzle intercommunication of water pump, it is provided with the water catch bowl rather than the inner chamber even provides to wash the chamber lower extreme, be provided with the filter screen that filters the dust in the water catch bowl, the lower extreme intercommunication of water pump and water catch bowl. This application utilizes the filter screen will filter from the dust that washes down on the circuit board, and later liquid after will filtering sprays towards the circuit board again, can utilize again the liquid that contains the dust this moment to partial water resource has been practiced thrift.

Description

Cleaning and drying equipment for circuit board production

Technical Field

The application relates to the technical field of circuit board processing, in particular to a cleaning and drying device for circuit board production.

Background

At present, dust adheres to the surface of a circuit board in the production process, and when the dust adheres to the surface of the circuit board, the subsequent electrical performance test and welding affect the test result and the welding quality, so that the circuit board needs to be cleaned after the production is finished to remove the dust on the surface of the circuit board.

At present, the means for cleaning the circuit board mostly adopts multi-stage water washing to gradually remove impurities on the surface of the circuit board, but the multi-stage water washing of the circuit board needs a large amount of water consumption, which can cause serious water resource waste.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to reduce the water waste who causes when carrying out multistage washing to the circuit board, this application provides a production of circuit board is with wasing and drying equipment.

The application provides a pair of circuit board production is with wasing and drying equipment adopts following technical scheme:

the utility model provides a circuit board production is with wasing and drying equipment, includes and washs chamber, stoving chamber, sets up in the wiper mechanism who washs the intracavity and sets up in the stoving mechanism of stoving intracavity, wash chamber and stoving intracavity and all be provided with the conveying mechanism that dirver circuit board removed, wiper mechanism is including setting up in a plurality of shower nozzles of wasing the intracavity and being used for the water pump that driving liquid flows, the delivery port and the shower nozzle intercommunication of water pump, it is provided with the water catch bowl that even provides rather than the inner chamber to wash the chamber lower extreme, be provided with the filter screen that filters the dust in the water catch bowl, the lower extreme intercommunication of water pump and water catch bowl.

Through adopting above-mentioned technical scheme, utilize the filter screen will filter from the dust that the circuit board was washed down, later liquid after will filtering sprays towards the circuit board again, can utilize the liquid that contains the dust again this moment to partial water resource has been practiced thrift.

Optionally: set up the change groove rather than the inner chamber intercommunication on the water catch bowl, it is provided with the change board to change the inslot cunning, change the board can with water catch bowl inner chamber butt, change the board upper end and seted up the mounting groove, the mounting hole that is to run through the setting is seted up to the mounting groove bottom surface, the filter screen set up in the mounting groove and with mounting groove diapire butt.

Through adopting above-mentioned technical scheme, thereby after the dust of adhesion is too much on the filter screen, thereby will change the board and take out from changing the inslot and change the filter screen, the in-process of carrying out the filter screen change no longer need dismantle the water catch bowl to the change that makes the filter screen is more convenient.

Optionally: the replacement plate is provided with an extension block, the extension block penetrates through a fastening bolt horizontally arranged, and the fastening bolt is in threaded connection with the water collecting tank.

Through adopting above-mentioned technical scheme, utilize fastening bolt to prescribe a limit to the position of changing the board to the position that changes the board can not change at the filter screen to liquid carries out filterable in-process, thereby makes the filtering process of filter screen be difficult for receiving the influence.

Optionally: the water collecting tank is provided with a drain pipe, and the position of the drain pipe connected with the water collecting tank is higher than the upper end face of the filter screen.

Through adopting above-mentioned technical scheme, after the content of dust increases in the liquid, discharge the liquid in the water catch bowl through the drain pipe, the rivers of in-process disturbance at the emission can be with the dust remixing in the liquid on the adhesion filter screen to reduce the change frequency of filter screen.

Optionally: the last undulant mechanism of drive liquid that still is provided with of water catch bowl, undulant mechanism includes air pump that jet-propelled head and drive air flow, the air outlet and the jet-propelled head of air pump are connected, the one end that the air pump was kept away from to the jet-propelled head inclines towards the upper end of filter screen and towards the filter screen.

Through adopting above-mentioned technical scheme, thereby through the disturbance of exacerbating liquid to rushing into the air in the water catch bowl, make the dust of attaching to on the filter screen change remixing in liquid again to make the dust can discharge in the water catch bowl along with the discharge of liquid, reduce the quantity of the dust of attaching to the filter screen surface, further reduce the frequency of changing the filter screen.

Optionally: the drying mechanism comprises a plurality of air drying fans and a plurality of electric heating pipes, the air drying fans are arranged in the drying cavity and are respectively fixed on the top wall and the bottom wall of the drying cavity, the air drying fans face the circuit board, and the electric heating pipes are respectively arranged on the bottom surface and the top wall of the drying cavity.

Through adopting above-mentioned technical scheme, utilize electric heating pipe to heat the air of stoving intracavity, later utilize air-dry fan to blow hot-air from the circuit board surface, accelerate the flow of the air on circuit board surface, increase drying rate.

Optionally: the high-pressure air drying device is characterized in that a strong air cavity used for dewatering the circuit board is arranged between the cleaning cavity and the drying cavity, a high-pressure air duct with an air opening facing the circuit board and a high-pressure fan driving air to flow are arranged in the strong air cavity, and an air outlet of the high-pressure fan is communicated with the high-pressure air duct.

Through adopting above-mentioned technical scheme, utilize strong wind cavity to increase the wind-force that blows out to can blow out the drop of water in the through-hole of circuit board, make drying effect better.

Optionally: the high-pressure air duct is arranged on the top wall of the inner cavity of the strong air cavity, and an air outlet of the high-pressure air duct is vertically arranged.

Through adopting above-mentioned technical scheme, the wind that blows out in making the high-pressure duct is vertical direction to it blows off the drop of water in the circuit board through-hole to change.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a schematic diagram for showing the internal structures of the cleaning chamber, the strong air chamber and the drying chamber according to the embodiment of the present application;

fig. 3 is a schematic diagram for showing an internal structure of a water collecting tank according to an embodiment of the present application.

In the figure, 1, a frame; 2. a cleaning chamber; 3. A drying cavity; 4. a cleaning mechanism; 41. a spray head; 42. a water pump; 421. a three-way valve; 43. cleaning the tube; 44. a water collection tank; 441. replacing the groove; 45. filtering with a screen; 46. replacing the plate; 461. mounting grooves; 462. mounting holes; 463. an extension block; 47. fastening a bolt; 48. a drain pipe; 5. a drying mechanism; 51. air drying the fan; 52. an electric heating tube; 61. A gas showerhead; 62. an air pump; 7. a strong wind cavity; 71. a high pressure air duct; 711. a high-pressure tuyere; 72. a high pressure fan; 8. a conveying mechanism; 81. a conveying roller; 82. an electric motor.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

As shown in fig. 1 and 2, the application discloses a cleaning and drying device for circuit board production, including the cleaning chamber 2 that sets up along the direction of delivery of circuit board, stoving chamber 3, set up and be used for carrying out abluent wiper mechanism 4 to the circuit board in cleaning chamber 2 and set up and be used for carrying out the stoving mechanism 5 of drying to the circuit board in stoving chamber 3, when the circuit board passes from cleaning chamber 2 and stoving chamber 3, utilize wiper mechanism 4 to clear up the dust of circuit board surface adhesion, later utilize stoving mechanism 5 will be attached to the liquid drying on circuit board surface.

Referring to fig. 2 and 3, the cleaning chamber 2 and the drying chamber 3 are both disposed on the frame 1, and a feeding port and a discharging port for feeding and discharging the circuit board are sequentially disposed on the side walls of the cleaning chamber 2 and the drying chamber 3 perpendicular to the conveying direction of the circuit board. The cleaning assembly comprises a plurality of nozzles 41 arranged in the cleaning cavity 2 and a water pump 42 for driving water flow to move towards the nozzles 41, and water outlets of the water pump 42 are respectively communicated with the nozzles 41 through cleaning pipes 43. The spray head 41 is fixedly connected to the top wall or the bottom wall of the inner cavity of the cleaning cavity 2 through bolts. The lower end surface of the cleaning cavity 2 is provided with a water collecting tank 44 with an upper opening, the upper end of the water collecting tank 44 is communicated with the inner cavity of the cleaning cavity 2, and the lower end of the water collecting tank 44 is communicated with the water inlet of the water pump 42 through a water outlet pipe. The water collecting tank 44 is also provided with a filter screen 45 which divides the inner cavity of the water collecting tank 44 into an upper part and a lower part, the filter screen 45 is used for filtering dust in the water collecting tank 44, and then the water pump 42 is used for pumping liquid and leading the liquid into the upper spray head 41 and the lower spray head 41 again, so that the water for cleaning the circuit board can be reused.

As shown in fig. 3, a replacement groove 441 communicating with an inner cavity of the water collection tank 44 is formed in a side wall of the water collection tank 44, a replacement plate 46 is slidably connected to the replacement groove 441, and a side wall of the replacement plate 46 can abut against and seal the inner wall of the water collection tank 44. Offer the mounting groove 461 that is used for holding filter screen 45 on the change board 46, the mounting groove 461 bottom surface runs through and is provided with mounting hole 462, and filter screen 45 sets up in mounting groove 461 and its lateral wall keeps the butt with the mounting groove 461 inner wall, and the up end of filter screen 45 is less than the up end of change board 46. The replacement plate 46 is integrally formed with an extension block 463, a fastening bolt 47 horizontally arranged is arranged on the extension block 463 in a penetrating manner, and the fastening bolt 47 is in threaded fit with the water collecting tank 44.

As shown in fig. 3, a drain pipe 48 is connected to a side wall of the water collecting tank 44 by using a pipe joint, a connection position of the drain pipe 48 and the water collecting tank 44 is higher than an upper end surface of the replacement plate 46, and a lower end of an inner cavity of the connection position of the drain pipe 48 and the water collecting tank 44 is tangent to the upper end surface of the replacement plate 46. The water inlet of the water pump 42 is provided with a three-way valve 421, one end of the three-way valve 421 is communicated with the water inlet of the water pump 42, one end of the three-way valve 421 is connected with the end of the water outlet pipe far away from the water collecting tank 44, and one end of the three-way valve 421 is communicated with an external clean water source. At this time, after the dust content in the liquid in the water collecting tank 44 increases, the liquid containing excessive dust in the water collecting tank 44 is discharged by opening the water discharge pipe 48, and the type of the liquid pumped by the water pump 42 is selected by the three-way valve 421 in the process of discharging the liquid, so that the water pump 42 can directly pump clean liquid, and the circuit board can still be cleaned in the process of replacing the liquid.

As shown in fig. 3, the water collecting tank 44 is further provided with a fluctuation mechanism for driving fluctuation of liquid in the water collecting tank 44, the fluctuation mechanism comprises an air nozzle 61 arranged in the water collecting tank 44 and an air pump 62 for supplying air to the air nozzle 61, an air outlet of the air pump 62 is communicated with the air nozzle 61, the air nozzle 61 is arranged at the upper end of the filter screen 45, an opening of the air nozzle 61 far away from the air pump 62 is inclined towards the filter screen 45 and towards the filter screen 45, at this time, when the liquid is discharged by using the drain pipe 48, the liquid before discharge is interfered by the air nozzle 61, so that the air nozzle drives dust adhered to the filter screen 45 to be mixed into the liquid again, and thus, the frequency of replacement of the filter screen 45 is reduced.

As shown in fig. 2, the drying mechanism 5 includes a plurality of air drying fans 51 for blowing air to the circuit board and a plurality of electric heating pipes 52, the air drying fans 51 are respectively fixedly connected to the upper end surface and the lower end surface of the inner cavity of the drying chamber 3 through bolts, and air outlets of the air drying fans 51 face the circuit board, so that the flow of air on the surface of the circuit board is accelerated, and the volatilization of moisture on the surface of the circuit board is accelerated. The electric heating pipe 52 is fixedly connected to the bottom wall and the top wall of the inner cavity of the drying cavity 3 through bolts, and the temperature in the drying cavity 3 is increased to accelerate the volatilization of moisture on the surface of the circuit board.

As shown in fig. 2, a strong air chamber 7 is further disposed between the drying chamber 3 and the cleaning chamber 2, and a feeding port and a discharging port for feeding and discharging the circuit board are respectively disposed on two side walls of the strong air chamber 7 perpendicular to the conveying direction of the circuit board. The strong wind cavity 7 is provided with a plurality of high pressure fans 72 and a plurality of high pressure wind channels 71, the high pressure wind channels 71 are fixed on the top surface of the inner cavity of the strong wind cavity 7 through bolts, the end surfaces of the high pressure wind channels 71 close to the circuit board are all provided with a straight high pressure wind port 711 perpendicular to the conveying direction of the circuit board, and the high pressure wind port 711 of the high pressure wind channels 71 is vertically arranged. The high-pressure fan 72 is fixed on the upper end face of the strong air cavity 7 by using bolts, and the high-pressure fan 72 is respectively communicated with the high-pressure air duct 71, so that when the circuit board passes through the air opening, water drops in the through holes on the circuit board are blown out by using strong air, and the drying effect of the circuit board is better.

As shown in fig. 2, the cleaning chamber 2, the strong wind chamber 7 and the drying chamber 3 are all provided with the conveying mechanism 8 for driving the circuit board to horizontally convey, the conveying mechanism 8 comprises a plurality of conveying rollers 81 and a motor 82 for driving the conveying rollers 81 to rotate, the conveying rollers 81 are connected to the cleaning chamber 2, the strong wind chamber 7 or the drying chamber 3, the upper ends of the side walls of the conveying rollers 81 are located between the top wall and the bottom wall of the feeding port, the motor 82 is fixed to the frame 1 through bolts, and is connected with one conveying roller 81, the conveying rollers 81 in the same chamber are connected through chains, and therefore the adjacent conveying rollers 81 are driven to synchronously rotate.

The implementation principle of the embodiment is as follows: in the circuit board passes through conveying mechanism 8 entering washing chamber 2, who stupid sprays liquid towards the circuit board through shower nozzle 41 to wash the dust in circuit board surface and the through-hole, later the circuit board gets into strong wind chamber 7, and strong wind in the strong wind chamber 7 blows off the drop of water in the circuit board through-hole, and later the circuit board removes to stoving chamber 3 in, utilizes hot-blast air flow and the heating of accelerating circuit board surface, makes the water evaporation on circuit board surface.

After the washing chamber 2 is used for a while, the drain pipe 48 is opened to discharge the liquid mixed with the dust, and the air pump 62 is used to pump air into the water collecting tub 44 during the liquid discharge, thereby accelerating the fluctuation of the liquid, so that the dust adhered to the filter 45 is re-mixed in the liquid and is discharged together from the drain pipe 48. The water pump 42 is operated while the water discharge pipe 48 is operated to pump the external clean liquid.

When the filter screen 45 needs to be replaced, the replacement plate 46 is taken out of the water collection tank 44, and the filter screen 45 is replaced.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a production of circuit board is with wasing and drying equipment which characterized in that: including wasing chamber (2), stoving chamber (3), set up wiper mechanism (4) in wasing chamber (2) and set up stoving mechanism (5) in stoving chamber (3), all be provided with conveying mechanism (8) that actuating circuit board removed in wasing chamber (2) and stoving chamber (3), wiper mechanism (4) are including setting up a plurality of shower nozzles (41) in wasing chamber (2) and being used for driving water pump (42) that liquid flows, the delivery port and shower nozzle (41) intercommunication of water pump (42), wash chamber (2) lower extreme and be provided with water catch bowl (44) that even provide rather than the inner chamber, be provided with filter screen (45) that filter the dust in water catch bowl (44), the lower extreme intercommunication of water pump (42) and water catch bowl (44).

2. The cleaning and drying apparatus for circuit board production according to claim 1, wherein: offer on water catch bowl (44) rather than change groove (441) of inner chamber intercommunication, it is provided with change board (46) to change groove (441) internal slipping, changes board (46) and can with water catch bowl (44) inner chamber butt, mounting groove (461) have been seted up to change board (46) upper end, mounting groove (461) bottom surface is seted up and is to be the mounting hole (462) that run through the setting, filter screen (45) set up in mounting groove (461) and with mounting groove (461) diapire butt.

3. The cleaning and drying apparatus for circuit board production according to claim 2, wherein: an extension block (463) is arranged on the replacement plate (46), a fastening bolt (47) which is horizontally arranged is arranged in the extension block (463) in a penetrating mode, and the fastening bolt (47) is in threaded connection with the water collecting tank (44).

4. The cleaning and drying apparatus for circuit board production according to claim 2, wherein: be provided with drain pipe (48) on water catch bowl (44), the position that drain pipe (48) and water catch bowl (44) are connected is higher than the up end of filter screen (45).

5. The cleaning and drying apparatus for circuit board production according to claim 4, wherein: the last undulant mechanism of drive liquid that still is provided with of water catch bowl (44), undulant mechanism includes air pump (62) that air jet head (61) and drive air flow, the air outlet and the air jet head (61) of air pump (62) are connected, the one end that air pump (62) were kept away from in air jet head (61) inclines towards the upper end of filter screen (45) and towards filter screen (45).

6. The cleaning and drying apparatus for circuit board production according to claim 1, wherein: drying mechanism (5) are including setting up a plurality of air-drying fan (51) and a plurality of electric heating pipe (52) in stoving chamber (3), on air-drying fan (51) were fixed in respectively the roof and the diapire of stoving chamber (3) inner chamber, air-drying fan (51) all towards the circuit board, electric heating pipe (52) set up respectively on the bottom surface and the roof of stoving chamber (3) inner chamber.

7. The cleaning and drying apparatus for circuit board production according to claim 1, wherein: the drying device is characterized in that a strong air cavity (7) used for dewatering the circuit board is arranged between the cleaning cavity (2) and the drying cavity (3), a high-pressure air duct (71) with an air opening facing the circuit board and a high-pressure fan (72) driving air to flow are arranged in the strong air cavity (7), and an air outlet of the high-pressure fan (72) is communicated with the high-pressure air duct (71).

8. The cleaning and drying apparatus for circuit board production according to claim 7, wherein: the high-pressure air duct (71) is arranged on the top wall of the inner cavity of the strong air cavity (7), and an air outlet of the high-pressure air duct (71) is vertically arranged.