CN217222614U

CN217222614U - Double-sided cleaning device for circuit board

Info

Publication number: CN217222614U
Application number: CN202123456629.1U
Authority: CN
Inventors: 张仁群
Original assignee: Magna Electronics Zhangjiagang Co ltd
Current assignee: Magna Electronics Zhangjiagang Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-19
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a two-sided belt cleaning device for circuit board, including two cleaning unit, every cleaning unit is responsible for including wasing respectively, many communicate in the washing branch pipe of washing on being responsible for, communicate in a plurality of washing spray tubes on every washing branch pipe, it includes the spray tube body to wash the spray tube, locate the fan-shaped nozzle on the spray tube body, the nozzle sets up towards the circuit board, the spray tube body extends and each other becomes the angle between its length extending direction and the circuit board place plane along the direction slope that is close to the circuit board, the angle is an, 60 < a < 90. The double-sided cleaning device of the utility model is provided with two opposite cleaning units, and the two cleaning units can synchronously clean the two side surfaces of the circuit board in the thickness direction, thereby improving the cleaning efficiency while ensuring the cleaning effect; meanwhile, the fan-shaped nozzle is adopted, so that the cleaning liquid can be sprayed to the surface of the circuit board in a fan shape, and the cleaning range and the cleaning uniformity are improved.

Description

Double-sided cleaning device for circuit board

Technical Field

The utility model relates to a washing field of circuit board, concretely relates to two-sided belt cleaning device for circuit board.

Background

In the production process of the circuit board, a circuit board cleaning process is generally adopted, and the process can remove foreign matters, prevent soldering flux from remaining and eliminate the potential hazards of performance degradation and short circuit of the circuit board in the future. In the circuit board cleaning process in the prior art, only one side surface of the circuit board can be cleaned, if the other side surface of the circuit board needs to be cleaned, the circuit board needs to be turned over, so that time and labor are wasted, and the cleaning effect is poor; meanwhile, the currently adopted spray head can only spray cylindrical water flow, so that the cleaning range is small, the cleaning uniformity is poor, the impact force of water columns is large, and the circuit board is easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide a two-sided belt cleaning device for circuit board.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a two-sided belt cleaning device for circuit board, includes two relative settings and is located the cleaning unit of the both sides of circuit board thickness direction respectively, every cleaning unit respectively including wash be responsible for, many communicate in wash the washing branch pipe of being responsible for, communicate in every wash a plurality of washing spray tubes on the branch pipe, wash the spray tube and include the spray tube body, locate fan-shaped nozzle on the spray tube body, the nozzle orientation the circuit board sets up, the spray tube body along being close to the direction slope of circuit board extends and its length extending direction with each other become the angle between the plane of circuit board place, the angle is an, 60 a < 90.

Preferably, said a =75 °.

Preferably, the cleaning unit further comprises a water inlet arranged at least one end of the cleaning main pipe, and the water inlet is communicated with an external water source.

Preferably, the cleaning unit further comprises a plurality of water outlets formed in the cleaning main pipe along the length extending direction of the cleaning main pipe, one ends of the plurality of cleaning branch pipes are respectively communicated with the plurality of water outlets correspondingly, and the other ends of the plurality of cleaning branch pipes are closed ends.

Preferably, the plurality of cleaning branch pipes are parallel to each other and are perpendicular to the cleaning main pipe.

Preferably, the plurality of cleaning nozzles are arranged at intervals along the length extension direction of the cleaning branch pipe.

Further preferably, the distance between every two cleaning spray pipes is b, and b is more than 10cm and less than 15 cm.

Further preferably, the cleaning spray pipes on every two adjacent cleaning branch pipes are arranged in a staggered manner in pairs.

Preferably, the double-sided cleaning device further comprises a casing with an inner cavity, an inlet and an outlet which are respectively arranged at two ends of the casing, a plurality of roller shafts which are arranged in the inner cavity along the direction from the inlet to the outlet at intervals and are rotatably arranged in the inner cavity around the axial lead direction of the roller shafts, the two cleaning units are arranged in the inner cavity and are respectively positioned at two sides of the arrangement direction of the plurality of roller shafts, the arrangement direction of the plurality of roller shafts is parallel to the arrangement direction of the plurality of cleaning branch pipes, and the axial lead direction of the roller shafts is parallel to the length direction of the cleaning branch pipes.

Further preferably, wash and be responsible for around rotatable locating of its own axial lead direction in the inner chamber, two-sided belt cleaning device still includes that at least one cover is located wash the main pipe tip and with the inconsistent rolling disc of casing outer wall, at least two are seted up and are located on the rolling disc just are located respectively the fixed orifices of the radial both sides of rolling disc, wear to locate in the fixed orifices and with the mounting that casing detachable is connected.

Because of the application of above-mentioned technical scheme, compared with the prior art, the utility model has the following advantage: the double-sided cleaning device of the utility model is provided with two opposite cleaning units, and the two cleaning units can synchronously clean the two side surfaces of the circuit board in the thickness direction, thereby improving the cleaning efficiency while ensuring the cleaning effect; meanwhile, the fan-shaped nozzle is adopted, so that the cleaning liquid can be sprayed to the surface of the circuit board in a fan shape, and the cleaning range and the cleaning uniformity are improved.

Drawings

Fig. 1 is a schematic structural view of two cleaning units in an embodiment of the present invention;

fig. 2 is an external structural schematic diagram of two cleaning units installed in a casing according to an embodiment of the present invention.

In the figure: 1. cleaning the main pipe; 1a, a water inlet; 1b, a water outlet; 2. cleaning the branch pipe; 3. cleaning the spray pipe; 3a, a nozzle body; 3b, a nozzle; 4. a housing; 5. an inlet; 6. a roll shaft; 7. rotating the disc; 8. a fixed port; 9. a fixing member;

s, cleaning the unit.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

The utility model relates to an improvement to the cleaning equipment of circuit board, has proposed a two-sided belt cleaning device for circuit board, the device is provided with two relative cleaning units S, two cleaning units S can wash the both sides face of circuit board thickness direction synchronously, have promoted the cleaning efficiency while guaranteeing the cleaning performance; and meanwhile, the fan-shaped nozzles 3b are adopted, so that the cleaning liquid can be sprayed to the surface of the circuit board in a fan shape, and the cleaning range and the cleaning uniformity are improved.

Referring to fig. 1-2, a double-sided cleaning apparatus for a circuit board is shown, which includes two cleaning units S disposed oppositely and respectively located at two sides of the thickness direction of the circuit board, each cleaning unit S includes a main cleaning pipe 1, a plurality of cleaning branch pipes 2 connected to the main cleaning pipe 1, and a plurality of cleaning nozzles 3 connected to each cleaning branch pipe 2, in this example, each cleaning unit S has six cleaning branch pipes 2, seven cleaning nozzles 3 are disposed on each cleaning branch pipe 2, each cleaning nozzle 3 includes a nozzle body 3a and a fan-shaped nozzle 3b disposed on the nozzle body 3a, the nozzle 3b is disposed toward the circuit board, the nozzle body 3a extends obliquely along a direction close to the circuit board, and the length extension direction of the nozzle body and the plane of the circuit board form an angle a, a =75 °.

Therefore, during cleaning, the circuit board is conveyed between the two cleaning units S, cleaning liquid is introduced into the cleaning main pipes 1 of the two cleaning units S, the cleaning liquid enters the plurality of cleaning branch pipes 2 from the cleaning main pipes 1 and then enters the plurality of nozzle bodies 3a and then is sprayed out of the nozzles 3b in a fan shape, and the sprayed cleaning liquid washes the surface of the circuit board from two sides in the thickness direction of the circuit board respectively, so that the synchronous cleaning of the surfaces of the two sides of the circuit board is realized.

Preferably, as shown in fig. 1, by setting the angle between the nozzle body 3a and the plane of the circuit board to 75 °, the cleaning liquid is prevented from being washed onto the circuit board vertically, and the coverage area of the cleaning liquid and the uniformity of spraying are further improved.

In this embodiment, the cleaning unit S further includes a water inlet 1a opened at least one end of the main cleaning pipe 1, and the water inlet 1a is communicated with an external water source. The external water source here is a tank for cleaning liquid, which is pumped into the main cleaning pipe 1 by a water pump.

Furthermore, the cleaning unit S also comprises a plurality of water outlets 1b which are arranged on the cleaning main pipe 1 along the length extension direction of the cleaning main pipe 1, one ends of the cleaning branch pipes 2 are respectively communicated with the water outlets 1b correspondingly, and the other ends are closed ends; the cleaning branch pipes 2 are parallel to each other and are perpendicular to the cleaning main pipe 1.

So, the washing liquid gets into from water inlet 1a and washs the main pipe 1 after, gets into many through a plurality of delivery ports 1b respectively and washs in the branch pipe 2, washs the branch pipe 2 and washs main pipe 1 and can make things convenient for the washing liquid to flow between the two of perpendicular setting, eliminates the dead angle that flows.

In this embodiment, a plurality of cleaning nozzles 3 are arranged at intervals along the length extending direction of cleaning branch pipes 2, the distance between each two cleaning nozzles 3 is b, b =12cm, and the cleaning nozzles 3 on every two adjacent cleaning branch pipes 2 are arranged in a staggered manner. Through setting up the interval that will wash a plurality of washing spray pipes 3 on the branch pipe 2 with the root to 12cm, two liang of crisscross arrangements of a plurality of washing spray pipes 3 on two adjacent washing branch pipes 2 simultaneously, improvement that can be very big washs the coverage of liquid, guarantees that washing liquid can cover the circuit board as far as completely.

In this embodiment, as shown in fig. 2, the double-sided cleaning device further includes a housing 4 having an inner cavity, an inlet 5 and an outlet (not shown in the figure) respectively provided at two ends of the housing 4, a plurality of rollers 6 arranged at intervals along the direction from the inlet 5 to the outlet and rotatably arranged in the inner cavity around the axis direction of the rollers, two cleaning units S arranged in the inner cavity and respectively located at two sides of the arrangement direction of the plurality of rollers 6, the arrangement direction of the plurality of rollers 6 is parallel to the arrangement direction of the plurality of cleaning branch pipes 2, and the axis direction of the rollers 6 is parallel to the length direction of the cleaning branch pipes 2. The plurality of rollers 6 are driven to rotate by a motor, and can play a role of conveying the circuit board. During the washing, send into the inner chamber with the circuit board from import 5 in, the circuit board moves forward under the conveying effect of roller 6 afterwards, and the in-process of removal, two cleaning unit S of both sides can spray the washing liquid to circuit board both sides surface about roller 6, realize the limit conveying and wash, and the circuit board that finishes of wasing exports from the export.

Preferably, the cleaning main pipe 1 is rotatably arranged in the inner cavity around the axial lead direction thereof, the double-sided cleaning device further comprises a rotating disc 7 which is sleeved on the end part of the cleaning main pipe 1 and is abutted against the outer wall of the machine shell 4, two fixing ports 8 which are arranged on the rotating disc 7 and are respectively positioned on two radial sides of the rotating disc 7, and a fixing piece 9 which is arranged in the fixing ports 8 in a penetrating manner and is detachably connected with the machine shell 4. The fixing member 9 is a bolt, the outer wall of the housing 4 is provided with a plurality of connecting ports around the circumferential direction of the rotating disc 7, and the bolt is in threaded connection with the connecting ports. Thus, when the angle between the cleaning branch pipe 2 and the circuit board needs to be adjusted, only two bolts need to be screwed off, the rotating disc 7 is rotated, the cleaning main pipe 1 is driven by the rotating disc 7 to rotate, and the cleaning main pipe 1 drives the cleaning branch pipe 2 to turn over, so that the angle adjustment of the cleaning branch pipe 2 is realized, and the cleaning effect is ensured; and after the adjustment is finished, screwing the bolt again.

The following specifically explains the working process of this embodiment: when the circuit board cleaning device is used for cleaning, the circuit board is sent into the inner cavity from the inlet 5, the circuit board moves forwards under the action of the roller shaft 6 and is positioned between the two cleaning units S, cleaning liquid is introduced into the cleaning main pipes 1 of the two cleaning units S at the moment, the cleaning liquid enters the cleaning branch pipes 2 from the cleaning main pipes 1 and then enters the spray pipe bodies 3a and then is sprayed out from the spray nozzles 3b in a fan shape, the sprayed cleaning liquid is respectively flushed on the surfaces of the circuit board from two sides in the thickness direction of the circuit board, synchronous cleaning of the surfaces of the two sides of the circuit board is realized, and the cleaned circuit board is output from the outlet.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A two-sided belt cleaning device for circuit board which characterized in that: including two relative settings and be located the cleaning unit of circuit board thickness direction's both sides respectively, every cleaning unit respectively including wash be responsible for, many feed through in wash the washing branch pipe in being responsible for, feed through in every wash a plurality of washing spray tubes on the branch pipe, wash the spray tube and include the spray tube body, locate fan-shaped nozzle on the spray tube body, the nozzle orientation the circuit board sets up, the spray tube body is along being close to the direction slope of circuit board extends and its length extending direction with each other become the angle between the plane of circuit board place, the angle is an, and 60 is < an < 90.

2. A double-sided cleaning apparatus for circuit boards according to claim 1, wherein: said a =75 °.

3. The double-sided cleaning device for circuit boards of claim 1, wherein: the cleaning unit further comprises a water inlet arranged at least one end of the cleaning main pipe, and the water inlet is communicated with an external water source.

4. A double-sided cleaning apparatus for circuit boards according to claim 1, wherein: the cleaning unit further comprises a plurality of water outlets which are arranged on the cleaning main pipe along the length extending direction of the cleaning main pipe, one end of each cleaning branch pipe is communicated with the corresponding water outlets, and the other end of each cleaning branch pipe is a closed end.

5. A double-sided cleaning apparatus for circuit boards according to claim 1, wherein: the cleaning branch pipes are parallel to each other and are perpendicular to the cleaning main pipe.

6. A double-sided cleaning apparatus for circuit boards according to claim 1, wherein: the cleaning spray pipes are arranged at intervals along the length extending direction of the cleaning branch pipe.

7. A double-sided cleaning apparatus for circuit boards according to claim 6, wherein: the distance between every two cleaning spray pipes is b, and b is more than 10cm and less than 15 cm.

8. A double-sided cleaning apparatus for circuit boards according to claim 6, wherein: the cleaning spray pipes on every two adjacent cleaning branch pipes are arranged in a pairwise staggered manner.

9. A double-sided cleaning apparatus for circuit boards according to claim 1, wherein: the double-sided cleaning device further comprises a casing with an inner cavity, an inlet and an outlet which are respectively arranged at two ends of the casing, a plurality of roller shafts which are arranged in the inner cavity along the direction from the inlet to the outlet at intervals and are rotatably arranged in the inner cavity around the axial lead direction of the roller shafts, two cleaning units are arranged in the inner cavity and are respectively positioned at two sides of the arrangement direction of the plurality of roller shafts, the arrangement direction of the plurality of roller shafts is parallel to the arrangement direction of the plurality of cleaning branch pipes, and the axial lead direction of the roller shafts is parallel to the length direction of the cleaning branch pipes.

10. A double-sided cleaning apparatus for circuit boards according to claim 9, wherein: the washing is responsible for around rotatable locating of its self axial lead direction in the inner chamber, two-sided belt cleaning device still includes at least one cover and locates wash the main pipe tip and with the inconsistent rolling disc of casing outer wall, at least two are seted up and are located on the rolling disc just be located respectively the radial both sides of rolling disc fixed mouthful, wear to locate in the fixed mouthful and with the mounting that casing detachable connects.