CN220426131U

CN220426131U - PCB cleaning equipment

Info

Publication number: CN220426131U
Application number: CN202321921128.2U
Authority: CN
Inventors: 许小波
Original assignee: Dongguan Nanguan Automation Technology Co ltd
Current assignee: Dongguan Nanguan Automation Technology Co ltd
Priority date: 2023-07-20
Filing date: 2023-07-20
Publication date: 2024-02-02
Anticipated expiration: 2033-07-20

Abstract

The utility model discloses a PCB cleaning device, which comprises a frame, wherein a cleaning bin, a filter and a heating liquid storage tank which are sequentially connected to form a loop are arranged in the frame; a first spraying assembly, an air drying assembly and a rotary placing frame are arranged in the cleaning bin, the first spraying assembly is connected with the heating liquid storage tank, and the rotary placing frame is connected with the first driving device; the cleaning bin is arranged upwards for the inlet and the outlet, the splash-proof cover plate is arranged above the inlet and the outlet, the liquid removing structure for cleaning the liquid attached to the bottom surface of the cover plate is arranged on the rack, the equipment starts to operate and repeatedly injects cleaning liquid into the cleaning bin to wash and spin the cleaning liquid, the attached liquid on the PCB can be effectively removed on the premise of ensuring cleaning of the PCB, in addition, the liquid removing device is driven by the first driving device to reciprocate to wipe the bottom surface of the cover plate to remove the attached liquid, water drops are prevented from being formed together, and the situation that the liquid drops onto the PCB after the PCB is air-dried is avoided.

Description

PCB cleaning equipment

Technical Field

The utility model belongs to the technical field of cleaning devices, and particularly relates to PCB cleaning equipment.

Background

The PCB cannot be directly used after being produced, and some impurities such as chemical liquid medicine and dust are left on the surface of the PCB, so that the PCB needs to be cleaned; as disclosed in patent document CN217665091U, a cleaning device for a PCB board is provided, which has the technical scheme that a shell, a partition board in the shell, a cleaning chamber, a drying chamber and an electric heating tube in the drying chamber are provided, so that the cleaning and drying functions are provided at the same time; the PCB is not required to be directly contacted with the board washing water by a user after the cleaning is finished by arranging the control circuit board, the electric sliding rail, the motor, the bearing, the connecting rod and the clamping assembly;

based on actual conditions, usually a plurality of PCBs can be cleaned once, in order to save space, the PCBs are stacked at intervals by using a jig, then in the cleaning process, liquid can enter between two PCBs, although the liquid can be evaporated in a drying mode, long time is required, in the drying process, the liquid is evaporated and can be adhered to a cover plate, water drops can be formed again after a certain amount of liquid is accumulated on the upper PCB, or the cover plate is opened when the dried PCBs are taken out, water drops can be slipped down by the action of the cover plate, and the water drops drop onto the PCBs, so that the subsequent use is influenced, or the cleaning process is required again.

Disclosure of Invention

The utility model aims to provide a PCB cleaning device for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the PCB cleaning equipment comprises a frame, wherein a cleaning bin, a filter and a heating liquid storage tank which are sequentially connected to form a loop are arranged in the frame; a first spraying assembly, an air drying assembly and a rotary placing frame are arranged in the cleaning bin, the first spraying assembly is connected with the heating liquid storage tank, and the rotary placing frame is connected with the first driving device;

the cleaning bin is provided with an inlet and an outlet upwards, a splash-proof cover plate is arranged above the inlet and the outlet, and a liquid removing structure for cleaning liquid attached to the bottom surface of the cover plate is arranged on the frame.

According to a further technical scheme, a temperature detection assembly is arranged in the cleaning bin.

According to a further technical scheme, a second spraying assembly and a second water outlet are arranged in the cleaning bin, and the second spraying assembly is connected with an external water source.

According to a further technical scheme, the heating liquid storage tank comprises an inner cavity and an outer cavity, wherein the inner cavity is used for storing cleaning liquid and is connected with the spraying assembly, and the outer cavity is used for storing hot water and is connected with the circulating device.

According to a further technical scheme, the liquid removing structure comprises a second driving device which is arranged on the frame and is connected with a liquid removing device in a transmission mode, the liquid removing device can be in contact with the bottom surface of the cover plate, and the second driving device drives the liquid removing device to reciprocate.

Further technical scheme, the liquid removing device includes the subassembly of ventilating, the subassembly of ventilating is connected with the connection crossbeam, the connection crossbeam up end is equipped with the wiper blade, the wiper blade can contact with the apron bottom surface, is located the one side that the connection crossbeam kept away from the subassembly of ventilating and is equipped with a plurality of air cock, a plurality of air cock multi-angle orientation apron direction.

Further technical scheme, the subassembly of ventilating is including the fixed piston of ventilating that sets up, the piston fixedly connected with sleeve pipe of ventilating, the intraductal activity of cover wears to be equipped with the pole of ventilating, pole one end of ventilating is equipped with sealing washer and sleeve pipe inner wall sealing connection, and the other end is connected with the connection crossbeam.

Further technical scheme, drive arrangement II includes two driving motor, two driving motor is connected with the lead screw pair in the transmission respectively, two pairs the lead screw pair is connected with the both ends of connecting the crossbeam respectively, and two vice one side of lead screw pair is equipped with the guide bar respectively, the guide bar through connection crossbeam.

The technical scheme is that the device further comprises a third driving device, the third driving device is in transmission connection with the cover plate, and the cover plate is in transverse sliding connection with the fixing frame.

According to a further technical scheme, the cover plate is a transparent glass plate, and protection supporting pieces are arranged on two sides of the cover plate.

According to a further technical scheme, the driving device III comprises racks arranged on two sides of the cover plate, the two racks are connected with gears in a meshed mode, and the gears are connected with the driving assembly.

The utility model has the beneficial effects that:

according to the utility model, the cleaning liquid is heated through the heating liquid storage tank, so that the activity of the cleaning liquid is excited, then the cleaning liquid is sprayed into the cleaning bin through the spraying assembly to be used for flushing dust on the PCB until the cleaning liquid completely submerges the PCB, and then the driving device is started to enable the rotary placing rack to drive at least one jig to rotate for a certain time, so that the cleaning liquid can be fully contacted with the PCB, and dust and chemical substances on the PCB are cleaned;

in addition, the equipment starts to operate and repeatedly injects cleaning solution into the cleaning bin to wash and spin the motion of drying, and in the process, liquid is thrown out and attached to the bottom surface of the cover plate, and meanwhile, the liquid removing device is driven by the first driving device to reciprocate to wipe the bottom surface of the cover plate to remove attached liquid, so that water drops are prevented from being formed by aggregation, and the situation that liquid drops on the PCB after the PCB is air-dried is avoided.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

Fig. 1: three-dimensional structure diagram of the present utility model.

Fig. 2: internal structure diagram of the present utility model.

Fig. 3: the cleaning bin of the utility model is internally structured.

Fig. 4: the liquid removing structure of the utility model is a perspective view.

Fig. 5: the liquid removing structure of the utility model is a disassembled drawing.

Fig. 6: the utility model is an enlarged view of section a of fig. 5.

Fig. 7: the air faucet mounting structure diagram of the utility model.

Fig. 8: the air tap air current schematic diagram of the utility model.

Reference numerals: 1-rack, 21-cleaning bin, 22-spray assembly one, 23-air drying assembly, 24-spray assembly two, 3-filter, 41-heating liquid storage tank, 42-circulation device, 51-rotary rack, 52-driving device one, 6-cover plate, 61-transparent glass plate, 62-protection support, 7-liquid removing structure, 71-driving device two, 711-driving motor, 712-screw pair, 713-guide bar, 72-liquid removing device, 7211-ventilation piston, 7212-sleeve, 7213-ventilation bar, 722-connecting beam, 723-wiper blade, 724-air tap, 73-driving device three, 731-rack, 732-gear, 733-driving assembly.

Description of the embodiments

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Please refer to fig. 1-8;

the PCB cleaning equipment aims to further improve the cleaning effect, and can avoid water accumulation in a gap after cleaning is finished, so that the drying time is shortened; the device specifically comprises a frame 1, wherein a cleaning bin 21, a first filter 3 and a heating liquid storage tank 41 which are sequentially connected to form a loop are arranged in the frame 1, a first spraying component 22, an air drying component 23 and a rotary placing rack 51 are arranged in the cleaning bin 21, the spraying component is connected with the heating liquid storage tank 41, and the rotary placing rack 51 is connected with a first driving device 52;

the above devices can be combined with each other in different ways, and in addition, a controller is provided in the device, a valve should be provided at the output position, and when the switching step is needed, the controller is used to control the opening and closing of the valve, which belongs to a common technical means in the art, and will not be described in detail herein, and one of the embodiments is listed below for description:

before working, a plurality of PCBs are put into the jig, and it is to be noted that in order to provide working efficiency, a plurality of PCBs can be stacked together and fixed on the jig, and certainly, the use mode is not the only use mode, the jig is not limited by the protection range, then the jig is put into the cleaning bin 21 to be fixed with the rotary placing frame 51, and the rotary placing frame 51 can fix a plurality of jigs at one time; during operation, the cleaning solution is heated by the heating liquid storage tank 41 so as to excite the activity of the cleaning solution, then the cleaning solution is sprayed into the cleaning bin 21 by the spraying component to flush dust on the PCB until the cleaning solution completely submerges the PCB, and then the first driving device 52 is started so that the rotary placing frame 51 can drive at least one jig to rotate for a certain time, the cleaning solution can be fully contacted with the PCB, and dust and chemical substances on the PCB are cleaned;

after the time, the cleaning bin 21 conveys the used cleaning fluid into the filter 3 through the water outlet, impurities in the cleaning fluid are filtered through filtration, the cleaning fluid contains chemical substances at the moment, the chemical substances cannot damage the PCB, and the effective substances in the cleaning fluid can be recycled, so that the cleaning fluid enters the heating liquid storage tank 41 again after being filtered by the filter 3, and the secondary cleaning of the PCB is waited; after repeating the above steps for a plurality of times, the cleaning solution is completely emptied from the cleaning bin 21, and then the jig is continuously driven to rotate by rotating the placing frame 51, so that the liquid attached to the PCB board or accumulated in the gap is thrown out by centrifugal force, and at the same time, the air drying assembly 23 starts to work for blowing away the liquid attached to the PCB board, thereby accelerating the drying effect.

Further, the first spraying component 22 and the air drying component 23 are both arranged on the side wall of the cleaning bin 21, the lengths of the first spraying component and the air drying component are longer than those of the rotary placing frame 51, and all the PCBs can be covered, wherein the spraying component can be composed of a plurality of nozzles and a water pump, the air drying component 23 can be composed of a fan, a flow dividing plate and a one-way valve, a groove is formed in a laminate of the cleaning bin 21, two larger vent holes and flow dividing plates are arranged in the groove, the fan is connected with the vent holes, the one-way valve is arranged at the position where the vent holes are connected with the fan, and liquid is prevented from entering the fan; the air drying component can also be an industrial air knife which is used for cleaning, air drying and drying the precise devices, and is made of stainless steel materials and driven by a high-pressure centrifugal fan to send out uniform and strong hot air, so that the purposes of drying and cleaning are achieved.

In addition, the cleaning bin 21 is provided with an inlet and an outlet for taking and placing the jig, so that the inlet and the outlet are required to be shielded by the cover plate 6, liquid is prevented from being thrown out of the inlet and the outlet, but the liquid is adhered to the bottom surface of the cover plate 6, and can drop into the cleaning bin 21 to be adhered to a PCB when the liquid accumulated on the bottom surface of the cover plate 6 is enough, so that the drying effect of the PCB is affected;

the utility model relates to one embodiment of a liquid removing structure 7, which particularly comprises a second driving device 71, wherein the second driving device 71 is arranged on a frame 1 and is in transmission connection with a liquid removing device 72, the liquid removing device 72 can be in contact with the bottom surface of a cover plate 6, and the second driving device 71 drives the liquid removing device 72 to reciprocate; it should be noted that the cover plate 6 may be rotatably connected to the frame 1 or may be slidably connected, which is not limited thereto, and the cover plate 6 is not close to the inlet and outlet of the cleaning bin 21, but a certain gap exists, and the gap may accommodate the liquid removing device 72, and when the cover plate 6 is close to the inlet and outlet in use, the liquid removing device 72 contacts the bottom surface of the cover plate 6.

Before working, opening the cover plate 6 to expose the inlet and the outlet, then placing the jig with the PCB from the inlet and the outlet into the cleaning bin 21, and finally closing the cover plate 6 to enable the cover plate 6 to be positioned above the inlet and the outlet, wherein one surface of the cover plate 6 close to the inlet and the outlet is in contact with the liquid removing device 72; the equipment starts to operate and repeatedly injects cleaning solution into the cleaning bin to wash and spin the cleaning solution, liquid is thrown out and attached to the bottom surface of the cover plate 6 in the process, meanwhile, the liquid removing device 72 is driven by the driving device II 71 to reciprocate to wipe the bottom surface of the cover plate 6 to remove the attached liquid, water drops are prevented from being formed by aggregation, and the situation that the liquid drops onto the PCB after the PCB is air-dried is avoided.

The present utility model is directed to one of the embodiments of the liquid removal apparatus 72;

the device specifically comprises a connecting crossbeam 722, wherein the connecting crossbeam 722 is connected with a first driving device 52, a water absorbing piece, such as sponge, water absorbing cloth and the like, is detachably connected to the connecting crossbeam 722, the first driving device 52 drives the connecting crossbeam 722 to reciprocate, and liquid attached to the bottom surface of the cover plate 6 is absorbed through the water absorbing piece; of course, frequent replacement of the absorbent member is required.

Another embodiment of the liquid removal apparatus 72;

the automobile windscreen wiper comprises a ventilation assembly, wherein the ventilation assembly is connected with a connecting crossbeam 722, a first driving device 52 is in transmission connection with the connecting crossbeam 722, a wiper blade 723 is arranged on the upper end face of the connecting crossbeam 722, and the wiper blade 723 is made of soft materials and can refer to a wiper part of an automobile windscreen wiper; the wiper blade 723 can contact with the bottom surface of the cover plate 6, a plurality of air nozzles 724 are arranged on one side of the connecting crossbeam 722 far away from the ventilation assembly, the plurality of air nozzles 724 face the direction of the cover plate 6 at multiple angles, and an air passage is arranged in the connecting crossbeam 722, so that the air flow of the ventilation assembly can be conveyed to the air nozzles 724 through the air passage; the length of the connecting crossbeam 722 is close to the width of the cover plate 6; in the working process, the second driving device 71 drives the connecting crossbeam 722 to act, in the process, the ventilation assembly inputs gas to the connecting crossbeam 722 and ejects stronger gas flow from a plurality of nozzles, in the embodiment, three nozzles are arranged, one of the nozzles is vertically aligned to the bottom surface of the cover plate 6, so that the gas flow contacts the bottom surface of the cover plate 6 and then flows to two sides, and the other two nozzles are obliquely arranged to two sides respectively and are used for reinforcing the gas flow flowing to two sides; the arrangement of a plurality of nozzles can ensure that the liquid attached to the bottom surface of the cover plate 6 flows to two sides, the liquid cannot flow to the other side due to the blocking of the wiper blade 723, and finally the liquid falls into a place except an inlet and an outlet, and then the residual liquid is cleaned by being matched with the wiper blade 723;

because the liquid that will be mostly attached is cleaned up for the first time, so only with apron 6 bottom surface clean up when returning to reset to not have liquid to drop, of course still can all be equipped with a plurality of air cock 724 of the same overall arrangement in connection crossbeam 722 both sides, still can provide the air-dry effect outside the processing clearance.

It should be noted that, since the second driving device 71 drives the liquid removing device 72 to act during the cleaning process, the liquid adhering to the bottom surface of the cover plate 6 always maintains a relatively small level, and no water drops fall onto the PCB board when the bottom surface of the cover plate 6 is subjected to the water removing operation.

The utility model relates to one embodiment of a ventilation assembly, which particularly comprises a ventilation piston 7211 fixedly arranged, wherein one end of the ventilation piston 7211 is connected with a trachea, the other end of the ventilation piston 7211 is fixedly connected with a sleeve 7212, a ventilation rod 7213 is movably arranged in the sleeve 7212 in a penetrating way, one end of the ventilation rod 7213 is provided with a sealing ring which is in sealing connection with the inner wall of the sleeve 7212, and the other end of the ventilation rod is connected with a connecting crossbeam 722.

When the second driving device 71 drives the connecting crossbeam 722 to move, the ventilation rod 7213 can move relative to the sleeve 7212, and the ventilation pipe and the sleeve 7212 form a piston structure due to the sealing ring arranged at one end of the ventilation rod 7213, so that ventilation can still be realized at the moment.

The present utility model relates to one of the embodiments of the second driving device 71; the device specifically comprises two driving motors 711, wherein the two driving motors 711 are respectively connected with a screw pair 712 in a transmission way, the two screw pairs 712 are respectively connected with two ends of a connecting crossbeam 722, the connecting crossbeam 722 is driven by the driving motors 711 and the screw pair 712 to realize reciprocating motion, one side of the other two screw pairs 712 is respectively provided with a guide rod 713, and the guide rods 713 penetrate through the connecting crossbeam 722.

The cover plate 6 is arranged on the fixing frame in a sliding connection mode, the driving device III 73 is arranged on the fixing frame, the driving device III 73 is in transmission connection with the cover plate 6, and the cover plate 6 is driven to transversely slide through the driving device III 73.

In this embodiment, the cover plate 6 is a transparent glass plate 61, so that the internal condition can be seen through the glass plate, and the action condition of the liquid removing device 72 is seen, and in addition, the protection support members 62 are installed on two sides of the cover plate, and the protection support members 62 not only can protect two sides of the transparent glass plate 61 and place collision and fragmentation, but also can provide convenience for the connection of the driving device III 73;

the third driving device 73 comprises racks 731 arranged on two sides of the cover plate 6, the two racks 731 are in meshed connection with a gear 732, the gear 732 is connected with a driving component 733, and the driving component 733 drives the gear 732 to rotate, so that the racks 731 realize reciprocating movement, namely opening and closing of the cover plate 6.

In the embodiment of the utility model, the cleaning bin 21 is internally provided with a temperature detection component, and the temperature detection component can monitor the temperature of the cleaning liquid in the cleaning bin 21 in real time and feed back to the controller to control the heating temperature of the heating liquid storage tank 41 so as to ensure that the cleaning liquid is at the optimal working temperature.

In the embodiment of the utility model, the cleaning bin 21 is internally provided with the second spraying component 24 and the second water outlet, the second spraying component 24 is connected with an external water source, the external water source is filtered purified water, the first spraying component 22 can be opened in the working process, and in order to avoid diluting the cleaning liquid by the clean water, the cleaning bin 21 is provided with two water outlets for discharging water and cleaning liquid respectively.

The present utility model relates to one embodiment of the heating liquid storage tank 41, specifically comprising an inner cavity for storing the cleaning liquid, which is connected to the spraying assembly, and an outer cavity for storing the hot water, which is connected to the circulating device 42, wherein the outer cavity can fully contact with the side wall of the inner cavity when the outer cavity is filled with the hot water, so that the cleaning liquid can be heated more uniformly.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the embodiments of the disclosure may be suitably combined to form other embodiments as will be understood by those skilled in the art.

Claims

1. The utility model provides a PCB board cleaning equipment, includes frame (1), its characterized in that: a cleaning bin (21), a filter (3) and a heating liquid storage tank (41) which are sequentially connected to form a loop are arranged in the frame (1); a first spraying assembly (22), an air drying assembly (23) and a rotary placing frame (51) are arranged in the cleaning bin (21), the first spraying assembly (22) is connected with the heating liquid storage tank (41), and the rotary placing frame (51) is connected with a first driving device (52);

the cleaning bin (21) is arranged with an inlet and an outlet upwards, a splash-proof cover plate (6) is arranged above the inlet and the outlet, and a liquid removing structure (7) for cleaning the liquid attached to the bottom surface of the cover plate (6) is arranged on the frame (1).

2. The PCB cleaning apparatus of claim 1, wherein: a temperature detection component is arranged in the cleaning bin (21).

3. The PCB cleaning apparatus of claim 1, wherein: a second spraying component (24) and a second water outlet are arranged in the cleaning bin (21), and the second spraying component (24) is connected with an external water source.

4. The PCB cleaning apparatus of claim 1, wherein: the heating liquid storage tank (41) comprises an inner cavity and an outer cavity, wherein the inner cavity is used for storing cleaning liquid and is connected with the spraying assembly, and the outer cavity is used for storing hot water and is connected with the circulating device (42).

5. The PCB cleaning apparatus of claim 1, wherein: the liquid removing structure (7) comprises a second driving device (71) which is arranged on the frame (1) and is connected with a liquid removing device (72) in a transmission way, the liquid removing device (72) can be in contact with the bottom surface of the cover plate (6), and the second driving device (71) drives the liquid removing device (72) to reciprocate.

6. The PCB cleaning apparatus of claim 5, wherein: the liquid removing device (72) comprises a ventilation assembly, the ventilation assembly is connected with a connecting crossbeam (722), a wiper blade (723) is arranged on the upper end face of the connecting crossbeam (722), the wiper blade (723) can be contacted with the bottom face of a cover plate (6), a plurality of air nozzles (724) are arranged on one side, far away from the ventilation assembly, of the connecting crossbeam (722), and the air nozzles (724) face the direction of the cover plate (6) in a multi-angle mode.

7. The PCB cleaning apparatus of claim 6, wherein: the ventilation assembly comprises a ventilation piston (7211) which is fixedly arranged, the ventilation piston (7211) is fixedly connected with a sleeve (7212), a ventilation rod (7213) is movably arranged in the sleeve (7212) in a penetrating mode, one end of the ventilation rod (7213) is provided with a sealing ring and is in sealing connection with the inner wall of the sleeve (7212), and the other end of the ventilation rod is connected with a connecting cross beam (722).

8. The PCB cleaning apparatus of claim 5, wherein: the second driving device (71) comprises two driving motors (711), the two driving motors (711) are respectively connected with a screw pair (712) in a transmission mode, the two screw pairs (712) are respectively connected with two ends of the connecting crossbeam (722), one side of each screw pair (712) is respectively provided with a guide rod (713), and the guide rods (713) penetrate through the connecting crossbeam (722).

9. The PCB cleaning apparatus of claim 5, wherein: the device also comprises a driving device III (73), the driving device III (73) is in transmission connection with the cover plate (6), and the cover plate (6) is in transverse sliding connection with the fixing frame.

10. The PCB cleaning apparatus of claim 5, wherein: the cover plate (6) is a transparent glass plate (61), and protection supporting pieces (62) are arranged on two sides of the cover plate.