CN115569897A - Circuit board spray cleaning equipment - Google Patents

Abstract

The utility model relates to a circuit board washs the field of technique, especially relates to a circuit board sprays cleaning equipment, and it includes belt cleaning device, is used for providing the feedway of wasing the material and is used for placing the placer of circuit board for belt cleaning device, belt cleaning device sets up the cleaning assembly who washs the incasement including wasing the case and being equipped with a plurality of, just cleaning assembly is provided with the hydrojet end that a plurality of rings circumference distribute and is used for the jet-propelled end of jet-propelled air, and it is a plurality of the hydrojet end links around jet-propelled end setting, just the jet-propelled direction of hydrojet end sets up towards the jet-propelled route of jet-propelled end, the hydrojet end communicates in feedway's confession liquid end, placer sets up in wasing the incasement, just jet-propelled end jet direction sets up towards placer. This application when wasing the circuit board, reduces the erosion to the circuit board to reduce the probability that the defective products produced.

Description

Circuit board spray cleaning equipment

technical field

The present application relates to the field of circuit board cleaning technology, in particular to a circuit board spray cleaning equipment.

Background technique

Circuit boards, also known as PCB boards, are mainly used in equipment that requires electrical control. In the manufacturing process of the circuit board, because there are multiple circuit components, it is often necessary to use soldering to fix the circuit components and communicate with the circuit on the circuit board. In the soldering process, solder paste, solder, solder wire, etc. are used for soldering, and the flux in it will produce residues during the soldering process to form pollution on the board surface of the circuit board. At the same time, dust from the manufacturing site, water and solvent vapor, smog, tiny particles of organic matter, and charged particles caused by static electricity will also adhere to the circuit board to form pollution, which will affect the service life and performance of the circuit board.

Therefore, the existing circuit board still needs to be cleaned after completing the soldering and assembling process. In the prior art, an ultrasonic cleaning machine is mostly used for cleaning, but in actual manufacturing, depending on the purpose of the circuit board, there will be a large number of crystal oscillators and relays on some circuit boards.

Crystal oscillators and relays are relatively sensitive to ultrasonic vibrations. If ultrasonic cleaning is used, the vibration during ultrasonic use can easily cause damage to the crystal oscillator and abnormal performance of the relay, which will lead to a decrease in the yield rate when manufacturing circuit boards.

Contents of the invention

In order to reduce the probability of defective circuit boards while cleaning the circuit boards, the present application provides a circuit board spray cleaning device.

A circuit board spray cleaning equipment provided by the application adopts the following technical scheme:

A circuit board spray cleaning equipment, including a cleaning device, a feeding device for providing cleaning materials for the cleaning device, and a placement device for placing circuit boards, the cleaning device includes a cleaning box and several cleaning boxes are arranged in the cleaning box The cleaning assembly, and the cleaning assembly is provided with a number of circumferentially distributed liquid injection ends and an air injection end for injecting air, several of the liquid injection ends are arranged around the air injection end, and the injection direction of the liquid injection end faces the air injection The spray path at the end is set, the liquid spray end is connected to the liquid supply end of the feeding device, the placement device is set in the cleaning box, and the jet direction of the jet end is set towards the placement device.

By adopting the above technical scheme, when cleaning the circuit board, the circuit board is placed in the cleaning box through the placement device, and then the cleaning component is supplied with cleaning liquid and pressure gas through the feeding device, and during this process, the cleaning liquid is sprayed automatically The liquid ends are sprayed and collide with each other to form atomized cleaning liquid water mist, and then the air sprayed from the spray end can blow the atomized cleaning liquid towards the circuit board, and due to the atomization and the effect of the air sprayed from the spray end , so that the cleaning liquid can be relatively fully in contact with the surface of the circuit board, compared with direct washing with cleaning liquid, it can effectively reduce the erosion of electrical components, and will not affect the electrical components due to high-frequency vibration. In order to achieve relatively sufficient cleaning while reducing the impact on the electrical components of the circuit board; at the same time, after the cleaning is completed, only the pressure gas is sprayed through the jet end, and the circuit board is air-dried to realize the integration of cleaning and drying deal with.

Optionally, the cleaning assembly includes a cleaning seat and a cleaning pipe passing through the cleaning seat, the air spray end is an air nozzle provided in the cleaning pipe, the liquid spray end is a liquid spray nozzle provided in the cleaning seat, and There are a number of cleaning holes arranged around the cleaning pipe in the cleaning seat, and the cleaning holes are connected to the liquid spray end one by one. The cleaning seat is inserted with a liquid supply pipe parallel to the cleaning pipe. The hole is connected to a liquid supply pipe, the liquid supply pipe is connected to the liquid supply end of the feeding device, and the cleaning pipe is connected to the gas supply end of the feeding device.

By adopting the above-mentioned technical scheme, when cleaning, the cleaning liquid, etc. flows in from the liquid supply pipe of the cleaning seat, and flows to the liquid spray end through the cleaning hole, and then sprays out. The cleaning liquid or water is atomized and blown out by the pressure gas to realize atomized cleaning of the circuit board.

Optionally, the inner rotation of the cleaning box is provided with a cleaning arm, several cleaning seats are distributed along the length direction of the cleaning arm and connected to the cleaning arm, and the cleaning pipe is connected to the gas supply end of the feeding device through the cleaning arm , the liquid supply pipe communicates with the liquid supply end of the feeding device through the cleaning arm, and the cleaning tank is provided with a rotating part for driving the cleaning arm to rotate.

By adopting the above technical solution, a plurality of cleaning components are connected in the cleaning box through the rotating arm, and through the rotation of the cleaning arm, the rotating cleaning of the circuit board is realized, so as to reduce the dead angle during cleaning.

Optionally, the cleaning arm is fixedly connected with a liquid pipe for communicating with the liquid supply end of the feeding device and an air pipe for connecting with the gas supply end of the feeding device, and the cleaning arm is provided with a plurality of connections for connecting the cleaning seat The hole, and the liquid pipe is inserted into the liquid supply pipe, the vent pipe is inserted into the cleaning pipe, the cleaning seat is covered and rotatably connected with a connecting pipe, and the connecting pipe is threadedly connected to the hole wall of the connecting hole.

By adopting the above technical scheme, when installing the cleaning seat, it is only necessary to turn the connecting pipe to be threaded on the inner wall of the connecting hole. Restrict the rotation of the cleaning seat itself to achieve stable installation and reduce the possibility of loosening of the connecting pipe caused by the swing of the cleaning seat.

Optionally, the feeding device includes a feeding box, several feeding water pumps and feeding air pumps, the cleaning agent storage area and the deionized water storage area are arranged in the feeding box, and the cleaning agent storage area and the deionized water storage area are arranged in the feeding box. A feed water pump is provided in the ion water storage area, and the discharge end of the feed water pump is connected to the liquid pipe through a pipeline provided with a valve, and the gas outlet end of the feed air pump is connected to the through pipe provided with a valve. trachea.

By adopting the above technical scheme, the supply tank can provide cleaning agent and deionized water for the liquid pipe in turn through the feed water pump, and provide pressure gas for the vent pipe through the feed water pump, so that it is first cleaned by the cleaning agent in sequence, and then After cleaning the residual cleaning agent on the circuit board with deionized water, the gas is finally blown dry by pressure gas to realize the integrated treatment of cleaning agent, deionized water and air drying, and optimize the cleaning efficiency. Compared with separate cleaning, it can effectively Reduce time spent on handling due to transshipment.

Optionally, a deionized water reuse area is also provided in the supply box, the cleaning arm is rotatably arranged on the top arm of the cleaning box, and the bottom wall of the cleaning box is fixed and communicated with several discharge pipes, several The discharge pipelines are respectively connected to the cleaning agent storage area and the deionized water reuse area one by one, and several of the discharge pipelines are used to return the corresponding cleaning agent and deionized water to the cleaning agent storage area and deionized water respectively. In the water reuse area, the deionized water reuse area is also provided with a feed water pump connected to the liquid pipe.

By adopting the above technical scheme, the discharge pipeline can separately recover the cleaning agent and deionized water after cleaning, and then store the reused cleaning agent through the cleaning agent storage area, and store the reused deionized water through the deionized water reuse area. Deionized water, in the subsequent use, is first cleaned with the recovered cleaning agent, then used for secondary cleaning with deionized water, and finally cleaned again with deionized water in the deionized water storage area, which can realize cleaning agent and deionized water. Reuse of ionized water to reduce waste of cleaning fluid.

Optionally, the cleaning arm is connected to the cleaning box through a connection assembly, the connection assembly includes a rotating inner tube and a fixed outer tube fixedly connected to the cleaning box, the cleaning arm is connected to the rotating inner tube, and the rotating inner tube The pipe is connected to the driving end of the rotating part, the rotating inner pipe is used to connect the liquid pipe and the liquid supply end of the feeding device, and the gas supply end and the ventilation pipe of the feeding device, and the fixed outer pipe is fixedly connected to the cleaning tank .

By adopting the above technical solution, the rotating inner tube is used to transmit the cleaning agent and the pressure gas, and at the same time, the rotation of the cleaning arm and the rotating delivery of multiple different materials are realized through the relative rotation of the rotating inner tube and the fixed outer tube.

Optionally, the outer wall of the rotating inner tube is provided with an air supply ring groove, and the inner wall of the air supply ring groove is provided with an air supply hole that communicates with the inside of the rotating inner tube, and the fixed outer tube is pierced with a ring that communicates with the air supply ring. The air supply pipe of the groove, the air supply pipe is connected to the air supply end of the feeding device, and the rotating inner pipe is connected to the air pipe; the outer wall of the rotating inner pipe is provided with a liquid supply ring groove, and the liquid supply ring groove The inner wall is provided with a liquid supply hole connected to the liquid pipe, and the fixed outer pipe is pierced with a liquid infusion pipe connected to the liquid supply ring groove, and the liquid infusion pipe is connected to the liquid supply end of the feeding device.

By adopting the above technical scheme, during cleaning, the cleaning agent or deionized water enters the liquid supply ring groove through the infusion pipe, and then enters the liquid pipe through the liquid supply hole, and at the same time, because the liquid supply ring groove can always be connected to the liquid pipe , so that when the rotating inner pipe rotates relative to the fixed outer pipe, it can still transmit cleaning agent or deionized water; at the same time, the pressure gas enters the air supply ring groove through the air supply pipe, then enters the inner side of the rotating inner pipe, and finally passes into the ventilation pipe, thereby Realize the rotary conveying of different materials.

Optionally, the placement device includes a placement frame and two sets of clamping plates for clamping the circuit board, the placement frame includes a placement top frame, a placement bottom frame and several placement bars, and the placement top frame and the placement bottom The racks are slid and connected to the cleaning box along the horizontal direction. The placement rod is a telescopic rod and the two ends are respectively hinged to the bottom frame and the top frame. The two sets of clamping plates are respectively hinged to the top frame and the bottom frame. opposite side edges.

By adopting the above technical solution, when cleaning the circuit board, the circuit board only needs to be clamped in the clamping plate of the top frame and the bottom frame, and then slide the top frame and the bottom frame into the cleaning box. and connect the top frame and the bottom frame by placing the rod, so that when cleaning, the angle of the circuit board can be controlled by placing the top frame or the swing of the bottom frame, so as to clean the two sides of the circuit board.

Optionally, the cleaning box includes a cleaning box main body with a side opening structure and a cleaning box door hinged on the edge of the side opening of the cleaning box main body, the rotation plane of the cleaning box door is vertically set, and the placement chassis rotates Two sets of placement wheels are connected for sliding, and the cleaning box door is provided with placement wheel grooves for cooperating with the placement wheels.

By adopting the above-mentioned technical scheme, when replacing the circuit board for cleaning or loading, it is only necessary to slide the placement wheel of the bottom frame into the placement wheel groove on the cleaning box door, and keep the cleaning box door level to be placed in the cleaning box. The outer side of the main body clamps the circuit board to the inner side of the clamping plate, which can effectively optimize the convenience of placing the circuit board.

In summary, the present application includes at least one of the following beneficial technical effects:

1. When cleaning the circuit board, the circuit board is placed in the cleaning box through the placement device, and then the cleaning component is supplied with cleaning liquid and pressure gas through the feeding device, and during this process, the cleaning liquid is sprayed from the liquid spray end And collide with each other to form atomized cleaning liquid water mist, and then the air sprayed from the spray end can blow the atomized cleaning liquid towards the circuit board, and due to the atomization and the effect of spraying air from the spray end, the cleaning liquid While being able to contact the surface of the circuit board relatively fully, compared with directly washing with cleaning fluid, it can effectively reduce the washing of electrical components, and will not affect the electrical components due to high-frequency vibration, so as to achieve relatively sufficient While cleaning, reduce the impact on the electrical components of the circuit board.

2. After the cleaning is completed, it is only necessary to control the liquid spray end to stop spraying cleaning agent or deionized water. At this time, the pressure gas is sprayed through the air spray end to air-dry the circuit board to realize the integrated processing of cleaning and drying.

Description of drawings

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

Fig. 2 is a schematic cross-sectional structure diagram of an embodiment of the present application.

FIG. 3 is an enlarged structural schematic diagram of part A in FIG. 2 .

Fig. 4 is a schematic cross-sectional structure diagram of the connecting part of the connection assembly and the main body of the cleaning box according to the embodiment of the present application.

Explanation of reference signs: 1. Cleaning device; 11. Cleaning box; 111. Main body of cleaning box; 112. Cleaning box door; 113. Placement wheel groove; 114. Electromagnet; , liquid injection end; 122, air injection end; 123, cleaning seat; 124, cleaning pipe; 125, cleaning hole; 126, liquid supply pipe; 127, connecting pipe; 128, liquid ring groove; 13, cleaning arm; 131, 132, ventilation pipe; 133, connection hole; 134, cleaning joint; 14, rotating part; 141, rotating motor; 142, rotating gear; 143, driven gear; 15, discharge pipe; 2, supply Material device; 21, feeding box; 210, feeding partition; 211, cleaning agent storage area; 212, deionized water storage area; 213, deionized water reuse area; 22, feeding water pump; 23, feeding Air pump; 24, valve; 25, pressure member; 251, pressure plate; 252, pressure pump; 3, placement device; 31, placement frame; 311, placement top frame; 312, placement bottom frame; 313, placement rod ; 314, placement wheel; 32, clamping plate; 33, electric push cylinder; 4, connecting assembly; 41, rotating inner pipe; 411, air supply ring groove; 412, air supply hole; 413, liquid supply ring groove; 414, Liquid supply hole; 42, fixed outer tube; 421, air supply tube; 422, infusion tube.

detailed description

The present application will be described in further detail below in conjunction with accompanying drawings 1-4.

The embodiment of the present application discloses a circuit board spray cleaning device. 1 and 2, the circuit board spray cleaning equipment includes a cleaning device 1, a feeding device 2 and a placement device 3 for placing circuit boards. The cleaning device 1 is used for cleaning circuit boards. At the same time, the feeding device 2 is used to provide cleaning materials for the cleaning device 1, and the cleaning materials include cleaning liquid and gas. Wherein, the cleaning solution is one of deionized water and a cleaning agent diluted with water.

Specifically, the cleaning device 1 includes a cleaning box 11 and several cleaning components 12 arranged in the cleaning box 11 . The cleaning box 11 includes a cleaning box main body 111 with a side opening structure and a cleaning box door 112 hinged on the edge of the opening of the cleaning box main body 111, and the rotation plane of the cleaning box door 112 is vertically arranged and parallel to the side opening of the cleaning box main body 111 The direction is used to carry the placing device 3 when placing the circuit board. Wherein, the placing device 3 is slidably connected to the inner wall of the cleaning box main body 111 , and the feeding device 2 is set at the side of the cleaning box main body 111 .

Referring to Fig. 2 and Fig. 3, the top wall of the cleaning box main body 111 is rotatably connected with the cleaning arm 13, the rotation plane of the cleaning arm 13 is arranged horizontally, and a plurality of cleaning components 12 are distributed on the cleaning arm 13 along the length direction of the cleaning arm 13. The cleaning assembly 12 includes a cleaning seat 123 and a cleaning pipe 124 passing through and fixedly connected to the cleaning seat 123 . The cleaning seat 123 has a columnar structure and is arranged on the same central axis as the cleaning pipe 124 . Wherein, the cleaning box main body 111 is provided with a rotating member 14 for driving the cleaning arm 13 to rotate.

One end of the cleaning pipe 124 is used to connect the air supply end of the feeding device 2, and the air outlet end of the cleaning pipe 124 is fixedly connected with an air nozzle to form an air injection end 122, and the air injection direction of the air injection end 122 is parallel to the central axis of the cleaning pipe 124. There are three cleaning holes 125 around the central axis of the cleaning seat 123, and a liquid ring groove 128 is opened inside the cleaning seat 123, and one end of the cleaning hole 125 is connected to the liquid ring groove 128, and the cleaning seat 123 is inserted with a ring groove connected to the liquid ring groove 128. The liquid supply pipe 126 of the liquid ring tank 128 is connected to the liquid supply end of the feeding device 2 through the liquid supply pipe 126, such as a port for providing cleaning agent and deionized water, and the other end of the cleaning hole 125 is inclined toward the bottom of the cleaning pipe 124. The opening on one side of the central axis is used to spray cleaning agent or deionized water, and the opening direction of the discharge end of the cleaning hole 125 is set at an angle with the central axis of the cleaning pipe 124, and the outlet edge of the cleaning hole 125 is fixedly connected with a liquid spray nozzle A liquid ejection end 121 is formed.

When cleaning the circuit board, it is only necessary to place the circuit board in the main body 111 of the cleaning box through the placement device 3, and then provide cleaning agent and pressure gas through the feeding device 2 at the same time, so that the cleaning agent flows through the cleaning seat 123. After the hole 125, it is sprayed from the liquid spray end 121. At the same time, because the spray direction of the cleaning hole 125 and the liquid spray end 121 is towards the central axis of the cleaning pipe 124, the sprayed cleaning agent will interact with each other at the central axis of the cleaning pipe 124. At the same time, the pressure gas flows through the cleaning pipe 124 and is ejected from the gas injection end 122, and then the cleaning agent mist formed by the cleaning agents colliding with each other is blown toward the circuit board to clean the circuit board relatively fully.

At the same time, compared with directly using cleaning agent liquid for cleaning, it can also effectively reduce the impact on the electrical components on the circuit board to reduce the rate of defective products; in addition, blowing the cleaning agent mist with pressure gas can make the cleaning agent It is more fully in contact with the circuit board, reducing the cleaning dead angle caused by the electrical components on the circuit board, so as to achieve a sufficient cleaning effect and reduce the erosion of the electrical components. Compared with ultrasonic waves, it can also effectively reduce the cleaning effect. Possibility of peeling of small electrical components, soldered structures, etc. relative to the circuit board.

Finally, after the cleaning is completed, deionized water can also be provided to the cleaning hole 125 through the feeding device 2 to further clean the circuit board, reducing the possibility of residual ion and cleaning agent corroding the circuit board; and After the cleaning is completed, it is also possible to pass through the cleaning hole 125 of the pipe wall, and only the pressure gas is introduced into the cleaning pipe 124, and the air-drying treatment after cleaning is carried out, thereby achieving sufficient cleaning of the circuit board, reducing the impact on the electrical components of the circuit board and reducing Residual liquid after circuit board cleaning.

Referring to FIG. 2 and FIG. 3 , in addition, in order to connect the cleaning seat 123 to the cleaning arm 13 , the cleaning arm 13 is provided with a plurality of connection holes 133 corresponding to the plurality of cleaning seats 123 . A central part of the cleaning arm 13 protrudes upward to form a cleaning connection part 134 . A liquid pipe 131 is embedded inside the cleaning arm 13 for communicating with the liquid supply end of the feeding device 2 . The liquid pipe 131 is a T-shaped tubular structure and its vertical part is passed through the cleaning connection part 134 . The horizontal portion of the liquid pipe 131 is embedded in the cleaning arm 13, and the pipe wall of the liquid pipe 131 protrudes toward the connecting hole 133 to form a plurality of liquid outlets, and the liquid outlets of the liquid pipe 131 are inserted into the Liquid supply pipe 126.

The cleaning arm 13 is embedded with an air pipe 132 having the same structure as the liquid pipe 131 , and the air pipe 132 is also embedded in the cleaning arm 13 . The air pipe 132 is used to communicate with the air supply end of the feeding device 2 , and the vertical portion of the air pipe 132 protrudes toward the cleaning connection portion 134 and is used for communicating with the air supply end of the feeding device 2 . A pipe wall of the ventilation pipe 132 protrudes toward the connecting hole 133 to form an air outlet, and the air outlet of the ventilation pipe 132 is inserted into the cleaning pipe 124 .

When in use, it is only necessary to provide cleaning agent or deionized water for the cleaning seat 123 through the liquid pipe 131; at the same time, provide pressure gas for the cleaning seat 123 through the air pipe 132, so as to respectively control the ventilation of the liquid spray end 121 and the air spray end 122. Break, realize the integration and complete the cleaning and air drying of the circuit board.

Referring to Fig. 2 and Fig. 3, at the same time, in order to connect the cleaning seat 123 to the inner side of the connecting hole 133, the cleaning seat 123 is covered with a connecting pipe 127 and rotated. The outer wall is screwed to the wall of the connecting hole 133 . When in use, since the liquid supply pipe 126 is inserted into the liquid pipe 131, and the cleaning pipe 124 is inserted into the air pipe 132, the rotation of the cleaning seat 123 will be restricted, and at this time, only the rotating connecting pipe 127 is screwed into the connecting hole The hole wall of 133 is sufficient; in addition, it can also reduce the possibility of loosening of the cleaning seat 123 relative to the hole wall of the connecting hole 133 due to the injection of pressure liquid or gas.

Referring to FIG. 4 , specifically, the cleaning arm 13 is rotatably connected to the top arm of the cleaning tank main body 111 through the connection assembly 4 , and is used to supply corresponding materials to the liquid pipe 131 and the air pipe 132 in the cleaning arm 13 .

The connection assembly 4 includes a rotating inner tube 41 and a fixed outer tube 42 , the fixed outer tube 42 is coaxially sheathed and rotatably connected to the rotating inner tube 41 . The rotating inner tube 41 and the cleaning connection part 134 are arranged on the same central axis and are flange-connected by bolts. The rotating inner tube 41 is pierced through the top wall of the cleaning box main body 111 . The lower end of the fixed outer pipe 42 is flange-connected to the top wall of the cleaning box main body 111 through bolts.

Referring to FIG. 4 , in order to be able to provide cleaning liquid and pressure gas separately. The outer wall of the rotating inner tube 41 is provided with an air supply ring groove 411, and the inner wall of the air supply ring groove 411 is provided with a number of air supply holes 412 connected to the inside of the rotating inner tube 41, and the rotating inner tube 41 is fixedly connected to one end of the cleaning connection part 134 It is arranged as an opening, and the other end of the rotating inner tube 41 is in a closed structure. The air pipe 132 is plugged and connected to the rotating inner pipe 41 , and the fixed outer pipe 42 is pierced with an air supply pipe 421 connected to the air supply ring groove 411 , and the air supply pipe 421 is used to communicate with the air supply end of the feeding device 2 .

Referring to Fig. 4, the outer wall of the rotating inner tube 41 is also provided with a liquid supply ring groove 413, and the inner wall of the liquid supply ring groove 413 is provided with a liquid supply hole 414 connected to the liquid pipe 131, and the liquid supply hole 414 is far away from the liquid supply ring groove 413 The opening direction is parallel to the central axis of the cleaning seat 123 , and the liquid pipe 131 is inserted into the opening edge of the liquid supply hole 414 on the side away from the liquid supply ring groove 413 . And the fixed outer tube 42 is pierced with an infusion tube 422 connected to the liquid supply ring groove 413, and the infusion tube 422 is connected to the liquid supply end of the feeding device 2, so as to realize the rotatable connection between the cleaning arm 13 and the cleaning box main body 111. Cleaning seat 123 provides liquid and pressure gas for cleaning.

At the same time, in order to drive the cleaning arm 13 to rotate through the connecting assembly 4, the rotating member 14 includes a rotating motor 141, a rotating gear 142 coaxially fixedly connected to the output shaft of the rotating motor 141 and a driven gear 143 coaxially fixedly connected to the rotating inner tube 41 , the rotating motor 141 is fixedly connected to the outer wall of the top of the cleaning tank main body 111 for driving the cleaning arm 13 to rotate by rotating the inner tube 41 .

With reference to Fig. 1 and Fig. 2, feeder 2 comprises feeder box 21, some feeder water pumps 22 and feeder air pump 23, the inner wall of feeder box 21 is fixedly connected with two vertically arranged feeder clapboards 210, and The supply box 21 is divided into a cleaning agent storage area 211 , a deionized water storage area 212 and a deionized water reuse area 213 . The cleaning agent storage area 211 is used to store the cleaning agent for cleaning the circuit board, the deionized water storage area 212 is used to store the deionized water for eliminating residual ions on the circuit board, and the deionized water reuse area 213 is used to store and reuse the cleaned circuit board. of deionized water.

Referring to Fig. 1 and Fig. 2, a number of feed water pumps 22 are placed in the cleaning agent storage area 211, the deionized water storage area 212 and the deionized water reuse area 213 in one-to-one correspondence, so as to output the liquid in the corresponding area . And the cleaning agent storage area 211, the deionized water storage area 212 and the deionized water reuse area 213 are respectively connected to the infusion pipe 422 through the first transmission pipe 214, and the cleaning agent storage area 211, the deionized water storage area 212 and the deionized water The output pipeline of the ion water reuse area 213 is provided with a valve 24 for controlling liquid on-off, and the valve 24 is preferably a solenoid valve.

The feed gas pump 23 is disposed on the side of the feed tank 21 , and the output end of the feed gas pump 23 is connected to the gas supply pipe 421 for providing the gas supply pipe 421 with pressurized gas. Wherein, the gas supply pipe 421 is also provided with a valve 24 for controlling the on-off of the pressure gas, so that the gas outlet end of the feed gas pump 23 communicates with the vent pipe 132 through the pipe provided with the valve 24 and the connecting assembly 4 .

Referring to Fig. 1 and Fig. 2, at the same time, the bottom of the main body 111 of the cleaning tank is provided with two discharge pipes 15, and the two discharge pipes 15 are respectively connected to the cleaning agent storage area 211 and the deionized water reuse area in one-to-one correspondence. 213, and the discharge pipe 15 is also provided with a valve 24. When in use, after the cleaning agent has cleaned the circuit board, the solution containing the cleaning agent can be returned to the cleaning agent storage area 211 through the discharge pipeline 15 connected to the cleaning agent storage area 211, and the deionized water that has cleaned the circuit board Return to the deionized water reuse area 213 to realize the recycling and reuse of the cleaning agent and deionized water respectively, while reducing the waste of resources; regularly detect the cleaning agent storage area 211, the deionized water storage area 212 and the deionized water The content of residues in the recycling area 213 can be replaced after the residues exceed the standard. In addition, when cleaning, the deionized water reused in the deionized water reuse area 213 is used for preliminary cleaning to remove the charged particles of the circuit board, and then the unused or filtered deionized water in the deionized water storage area 212 Deionized water is used to clean the circuit board to achieve secondary deionization treatment, optimize the use efficiency of deionized water, and reduce the cost of cleaning to reduce waste during production.

In addition, in order to further optimize the reuse of deionized water, the feed separator 210 separated between the deionized water storage area 212 and the deionized water reuse area 213 is an RO reverse osmosis membrane for reuse of deionized water. The deionized water in the zone 213 is filtered and then returned to the deionized water storage zone 212 . Wherein, the opening of the deionized water reuse area 213 is covered with a pressurizing member 25 for maintaining and pressurizing the deionized water reuse area 213 . The pressurizing part 25 includes a pressurizing plate 251 that covers the inner wall of the opening of the deionized water reuse area 213 and a pressurizing pump 252 installed on the pressurizing plate 251. The pressurizing plate 251 is used to close the deionized water reuse area 213, The pressurized gas output port of the booster pump 252 is connected to the deionized water reuse area 213 through the pressurization plate 251, so as to pressurize the deionized water reuse area 213 and realize the reverse osmosis of the used deionized water filter.

Referring to FIG. 1 , in order to facilitate unloading the circuit board from the cleaning box main body 111 and placing the circuit board in the cleaning box main body 111 , the placing device 3 includes a placing frame 31 and two sets of clamping plates 32 for clamping the circuit board.

The placement frame 31 includes a placement top frame 311, a placement bottom frame 312 and several placement bars 313. The placement top frame 311 and the placement bottom frame 312 are grid-like structures, so that cleaning agents or deionized water enter and contact the circuit board.

The placing top frame 311 and the placing bottom frame 312 are all arranged horizontally, and the placing top frame 311 is slidably connected to the inner wall of the cleaning box main body 111 through the damping slide rail, and the placing top frame 311 is located at the top of the cleaning box main body 111 and at the bottom of the cleaning arm 13. below. The placing base frame 312 is rotatably connected with several placing wheels 314 , so that the placing base frame 312 can slide horizontally relative to the cleaning box main body 111 .

Referring to FIG. 1 and FIG. 2 , the two ends of the placement rod 313 are respectively hinged on the top frame 311 and the bottom frame 312 , and the rotation plane of the placement rod 313 is parallel to the rotation plane of the cleaning box door 112 . The placement rod 313 is a telescopic rod body, such as two tubular bodies that are nested with each other and arranged concentrically with the central axis, and the far ends of the two tubular bodies are hinged to the top frame 311 and the bottom frame 312 respectively. And, two groups of clamping plates 32 are respectively arranged on the opposite side panels where the top frame 311 and the bottom frame 312 are placed, and the clamping plates 32 are U-shaped plate structures and grid plates, so that the circuit boards While cleaning, the upper and lower edges of the circuit board are clamped, so that the circuit board is clamped between the top frame 311 and the bottom frame 312 .

Simultaneously, the bottom wall of the cleaning box main body 111 and the inwall of the cleaning box door 112 are provided with two placement wheel grooves 113 for cooperating with the placement wheels 314, and the length direction of the placement wheel grooves 113 is parallel to the rotation plane of the cleaning box door 112. Wherein, the rotation angle range of the cleaning box door 112 is 0-90° starting from the horizontal, so that when the cleaning box door 112 is rotated downward to the level, it can support the placing chassis 312 . Specifically, the cleaning box door 112 is rotatably connected to the lower opening edge of the cleaning box main body 111 through an angle hinge;

When in use, the bottom frame 312 is pulled out of the cleaning box main body 111, and the placement wheel 314 is rolled to the cleaning box door 112 along the placement wheel groove 113, and then the upper and lower edges of the circuit board are respectively clamped on the top frame 311. The clamping plate 32 and the clamping plate 32 for placing the bottom frame 312 , and finally push the bottom frame 312 and the top frame 311 into the main body 111 of the cleaning box for cleaning.

Referring to Fig. 2, in addition, in order to further fully clean the circuit board, the side edge of the top frame 311 away from the opening edge of the cleaning box main body 111 is fixedly connected with the electric push cylinder 33, and the end of the telescopic end of the electric push cylinder 33 is used. It is made of magnetic material, and the telescoping direction of the telescoping end of the electric push cylinder 33 is parallel to the sliding direction of the top frame 311 . Wherein, the main body 111 of the cleaning box is fixedly connected with an electromagnet 114 located on the telescopic path of the telescopic end of the electric push cylinder 33 for absorbing the telescopic end of the electric push cylinder 33 .

Referring to Fig. 1 and Fig. 2, the bottom of the cleaning box door 112 is fixedly connected with an abutment block 115, and the abutment block 115 is used to push the placing chassis 312 towards the inside when the cleaning box door 112 is closed, and place the placement wheel 314 in contact with it. Place the end surface of the wheel groove 113 at the bottom of the cleaning box main body 111 to limit the swing of the bottom frame 312 .

When in use, after the cleaning box door 112 is closed, the abutment block 115 will limit the movement of the bottom frame 312; at the same time, the telescopic end of the electric push cylinder 33 will abut against the electromagnet 114, and then the electromagnet 114 will start, and the electromagnet will Push cylinder 33 and be fixed on the inwall of cleaning box main body 111; Then the telescoping end of electric push cylinder 33 telescopically, control places the sliding of top frame 311 in cleaning box main body 111, to control placing top frame 311 and placing the relative between bottom frame 312 Position adjustment, so as to realize the change of the inclination angle of the circuit board during the cleaning process, so that the cleaning agent, deionized water or reused deionized water sprayed on the cleaning arm 13 can directly contact the two side plates of the circuit board There is no need to arrange multiple cleaning arms 13, so as to achieve the purpose of optimizing the sufficient cleaning of the circuit board while simplifying the structure.

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims (10)

1. The utility model provides a circuit board sprays cleaning equipment which characterized in that: including belt cleaning device (1), be used for providing feedway (2) of wasing the material and be used for placing placer (3) of circuit board for belt cleaning device (1), belt cleaning device (1) is including wasing case (11) and setting up a plurality of cleaning assembly (12) that set up in wasing case (11), just cleaning assembly (12) is provided with spray end (121) of a plurality of hoop circumference distributions and jet-propelled end (122) that are used for spraying air, and is a plurality of spray end (121) encircle jet-propelled end (122) and set up, just the jet-propelled route setting of jet-propelled end (122) of the jet-propelled direction orientation of spray end (121), spray end (121) communicate in the confession liquid end of feedway (2), placer (3) set up in wasing case (11), just jet-propelled end (122) jet-propelled orientation sets up towards placer (3).

2. The circuit board spray cleaning device of claim 1, wherein: the cleaning assembly (12) comprises a cleaning seat (123) and a cleaning pipe (124) penetrating through the cleaning seat (123), an air spraying end (122) is an air nozzle arranged in the cleaning pipe (124), a liquid spraying end (121) is a liquid spraying nozzle arranged in the cleaning seat (123), a plurality of cleaning holes (125) arranged around the cleaning pipe (124) are formed in the cleaning seat (123), the cleaning holes (125) are communicated with the liquid spraying end (121) in a one-to-one correspondence mode, a liquid supply pipe (126) parallel to the cleaning pipe (124) is inserted into the cleaning seat (123), the cleaning holes (125) are communicated with the liquid supply pipe (126), the liquid supply pipe (126) is communicated with a liquid supply end of the feeding device (2), and the cleaning pipe (124) is communicated with a gas supply end of the feeding device (2).

3. The circuit board spray cleaning device of claim 2, wherein: the internal rotation that washs case (11) is provided with washs arm (13), and is a plurality of wash seat (123) along the length direction distribution that washs arm (13) and connect in washing arm (13), wash pipe (124) through wasing arm (13) and communicate in the air feed end of feedway (2), liquid feed pipe (126) communicate in the confession liquid end of feedway (2) through wasing arm (13), just it is provided with and is used for driving to wash arm (13) pivoted rotating member (14) to wash case (11).

4. The circuit board spray cleaning device of claim 3, wherein: wash arm (13) fixedly connected with and be used for communicateing feed device (2) and supply liquid pipe (131) of holding and be used for communicateing breather pipe (132) of feed device (2) air feed end, wash arm (13) and set up a plurality of connecting holes (133) that are used for connecting wash seat (123), just it inserts and locates feed pipe (126) to lead to liquid pipe (131), breather pipe (132) are inserted and are located scavenge pipe (124), wash seat (123) overcoat and rotate and be connected with connecting pipe (127), connecting pipe (127) threaded connection is in the pore wall of connecting hole (133).

5. The circuit board spray cleaning device of claim 3, wherein: feeding device (2) are including feed tank (21), a plurality of feed water pump (22) and feed air pump (23), be provided with cleaner storage area (211) and deionized water storage area (212) in feed tank (21), all be provided with feed water pump (22) in cleaner storage area (211) and the deionized water storage area (212), the discharge end of feed water pump (22) communicates in logical liquid pipe (131) through the pipeline that is provided with valve (24), the end of giving vent to anger of feed air pump (23) communicates in breather pipe (132) through the pipeline that is provided with valve (24).

6. The circuit board spray cleaning device of claim 5, wherein: still be provided with deionized water retrieval and utilization district (213) in feed tank (21), it sets up in the top arm of wasing case (11) to wash arm (13) rotation, the fixed and intercommunication of diapire that washs case (11) has a plurality of discharge tube (15), and is a plurality of discharge tube (15) respectively one-to-one communicate in cleaner storage area (211) and deionized water retrieval and utilization district (213), and is a plurality of discharge tube (15) are used for flowing back cleaner and the deionized water that corresponds to cleaner storage area (211) and deionized water retrieval and utilization district (213) respectively, be provided with feed water pump (22) that communicate in logical liquid pipe (131) in deionized water retrieval and utilization district (213) equally.

7. The circuit board spray cleaning device of claim 4, wherein: wash arm (13) and connect in wasing case (11) through coupling assembling (4), coupling assembling (4) are including rotating inner tube (41) and fixed connection in the fixed outer tube (42) of wasing case (11), wash arm (13) and connect in rotating inner tube (41), just rotate inner tube (41) and connect in the drive end that rotates piece (14), it is used for connecting the confession liquid end of liquid pipe (131) and feedway (2) and feed arrangement (2) and feed end and breather pipe (132) to rotate inner tube (41), fixed outer tube (42) fixed connection is in wasing case (11).

8. The circuit board spray cleaning device of claim 7, wherein: the outer wall of the rotating inner pipe (41) is provided with an air supply ring groove (411), the inner wall of the air supply ring groove (411) is provided with an air supply hole (412) communicated with the inside of the rotating inner pipe (41), the fixed outer pipe (42) is provided with an air supply pipe (421) communicated with the air supply ring groove (411) in a penetrating manner, the air supply pipe (421) is communicated with an air supply end of the feeding device (2), and the rotating inner pipe (41) is communicated with the vent pipe (132); the outer wall that rotates inner tube (41) has seted up and has supplied liquid annular groove (413), supply the inner wall of liquid annular groove (413) to set up and communicate confession liquid hole (414) in logical liquid pipe (131), fixed outer tube (42) are worn to be equipped with the transfer line (422) that communicate in supplying liquid annular groove (413), transfer line (422) communicate in the confession liquid end of feedway (2).

9. The circuit board spray cleaning device of claim 3, wherein: placer (3) are including rack (31) and two sets of grip block (32) that are used for the centre gripping circuit board, rack (31) are including placing roof-rack (311), placing chassis (312) and a plurality of pole (313) of placing, place roof-rack (311) and place chassis (312) and all slide along the horizontal direction and connect in washing case (11), it articulates respectively in placing chassis (312) and placing roof-rack (311) for telescopic link and both ends to place pole (313), and is two sets of grip block (32) articulate respectively in the opposite side border of placing roof-rack (311) and placing chassis (312).

10. The circuit board spray cleaning device of claim 9, wherein: wash case (11) including being side open structure wash case main part (111) and articulate in washing case door (112) at washing case main part (111) side open border, the rotation plane of washing case door (112) is vertical setting, place chassis (312) and rotate and be connected with two sets of gliding wheels (314) of placing that are used for, just wash case door (112) and offer wheel groove (113) of placing that are used for the cooperation to place wheels (314).

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