CN214544948U

CN214544948U - PCB cleaning device

Info

Publication number: CN214544948U
Application number: CN202120651065.8U
Authority: CN
Inventors: 叶钢华; 吴永强; 程祥艳
Original assignee: Winglung Huizhou Pcb Co ltd
Current assignee: Winglung Huizhou Pcb Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-10-29
Anticipated expiration: 2031-03-31

Abstract

The utility model relates to a PCB board production field, concretely relates to PCB cleaning device. The utility model provides a PCB cleaning device, include transmission band, first mounting bracket, second mounting bracket, set up the transport mechanism who is used for carrying the PCB board between first mounting bracket and second mounting bracket. All be provided with a plurality of direction subassemblies on first mounting bracket and the second mounting bracket. And a cleaning mechanism and a drying and impurity removing mechanism are arranged on the first mounting frame and the second mounting frame. The drying and impurity removing mechanism comprises an upper air outlet assembly arranged above the conveying mechanism and a lower air outlet assembly arranged below the conveying mechanism. Go up the air-out subassembly for setting up the air-out groove on first mounting bracket and second mounting bracket. The lower air outlet component is provided with an air outlet hole. The utility model discloses a stoving edulcoration mechanism has adopted the structure of air-out groove and exhaust vent, still is provided with the direction subassembly of side, and wiper mechanism and stoving edulcoration mechanism can carry out high-efficient operation to the surface of PCB board to reduce manufacturing cost, improved production efficiency.

Description

PCB cleaning device

Technical Field

The utility model relates to a PCB board production field, concretely relates to PCB cleaning device.

Background

The production process of the PCB is complex, and the related process range is wide. Because the production process is a discontinuous assembly line form, the problem of any link can cause the whole line to stop production or discard a large amount, and the discarded printed circuit board can not be recycled. The dry film process is one of the processes of PCB production, and specifically, the dry film is adhered to a roughened copper surface, and the dry film is left on the copper surface after exposure to protect the copper surface from being dissolved by etching liquid medicine. After PCB dry film process, need wash processes such as stoving to clear away debris such as the dry film piece that PCB surface left over, PCB needs usually to drill because of the design requirement, downthehole often can glue the piece that has the dry film, and the mesoporous position of different designs differs, lead to washing, in the process of stoving, be difficult to clear away downthehole dry film piece totally, cause the influence to follow-up processing, influence the product quality, lead to rework rate and disability rate higher, invisibly increased manufacturing cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a PCB cleaning device.

The utility model discloses a following scheme realizes:

a PCB cleaning device comprises a transmission belt, a first mounting frame, a second mounting frame and a conveying mechanism arranged between the first mounting frame and the second mounting frame and used for conveying a PCB. All be provided with a plurality of direction subassemblies on first mounting bracket and the second mounting bracket. And a driving piece for controlling the conveying mechanism is arranged on the first mounting frame. The conveying mechanism comprises conveying rotating shafts arranged on the first mounting frame and the second mounting frame and rollers uniformly arranged on the conveying rotating shafts. The gyro wheel is provided with a plurality ofly. And a cleaning mechanism and a drying and impurity removing mechanism are sequentially arranged on the first mounting frame and the second mounting frame along the conveying direction. The drying and impurity removing mechanism comprises an upper air outlet assembly arranged above the conveying mechanism and a lower air outlet assembly arranged below the conveying mechanism. Go up the air-out subassembly and be provided with the air-out groove, and air-out groove direction perpendicular to transport mechanism's direction of transfer. A plurality of air outlet holes are uniformly formed in the lower air outlet assembly.

In the improved structure, the guide assembly is contacted with the side surface of the PCB, so that the cleaning mechanism and the drying and impurity removing mechanism can more effectively operate the surface of the PCB; in addition, the upper air outlet assembly adopts an air outlet groove structure, so that the PCB on the conveying mechanism can be ensured to be covered; meanwhile, the air outlet holes of the lower air outlet assembly can enable blown air to be relatively concentrated, and the wind power of unit area is increased. Under the cooperation of last air-out subassembly and air-out subassembly down, can adapt to the PCB of different specifications better, ensure effectively to clear away the debris in the PCB trompil, realize PCB's comprehensive cleanness.

As a further improvement, the upper air outlet assembly and the lower air outlet assembly are arranged in a staggered manner in the horizontal direction. Because last air-out subassembly and the setting of staggering of air-out subassembly down make two upper and lower directions of PCB board all receive the air pressure of single flow direction, the downthehole gas that obtains single flow direction of PCB board, consequently can clear up downthehole impurity more easily.

As the utility model discloses a further improvement again, go up the air-out subassembly and all be connected with the air heater with lower air-out subassembly, reduce the stoving time to improve production efficiency.

As a further improvement, the cleaning mechanism includes an upper cleaning nozzle group above the conveying mechanism and a lower cleaning nozzle group below the conveying mechanism. The upper cleaning spray head group and the lower cleaning spray head group are arranged in a staggered mode in the horizontal direction. Because the upper cleaning spray head group and the lower cleaning spray head group are arranged in a staggered manner, the upper direction and the lower direction of the PCB are subjected to water pressure in a single flow direction, liquid in the single flow direction is obtained in the hole of the PCB, and therefore impurities in the hole can be cleaned more easily.

Further, wiper mechanism still washs the recovery water tank of shower nozzle group below including setting up down, and recovery water tank washs the shower nozzle group and washs the shower nozzle group down through filter assembly intercommunication. By using the structure, water sources can be saved, and therefore, the production cost is reduced.

Further, the anti-slip layer is arranged on the surface of the blade roller, so that the friction force of the surface of the blade roller to the PCB is increased, the PCB stably moves along the conveying direction, and the production efficiency is improved.

Furthermore, the anti-skid material of the roller is a rubber elastic ring.

Furthermore, a plurality of bulges are uniformly arranged on the outer surface of the rubber elastic ring, the contact surface of the roller and the circuit board can be reduced by the bulges, the possibility of damaging the PCB is reduced, and the friction force of the roller to the PCB is increased.

Further, wiper mechanism and stoving edulcoration mechanism can more than set up one, and specific quantity sets up according to specific demands, for example can carry out the adaptability according to the circuit board specification of producing and set up.

Compared with the prior art, the method has the following beneficial effects:

the drying and impurity removing mechanism of the utility model comprises an upper air outlet component and a lower air outlet component, wherein the upper air outlet component adopts an air outlet groove structure, and can completely cover the whole PCB, so that the PCB is subjected to uniform wind direction pressure; the lower air outlet assembly is provided with a plurality of air outlet holes, so that impurities in through holes of the PCB can be effectively removed, the cleaning effect is ensured, the product yield is improved, the rework rate and the rejection rate are reduced, the production cost is reduced, and the production efficiency is improved.

On the other hand, the utility model discloses be provided with the direction subassembly of side, wiper mechanism and stoving edulcoration mechanism can carry out the operation to the surface of PCB board more effectively, have reduced the rework rate to manufacturing cost has been reduced, production efficiency has been improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of another angle of the present invention, in which the second mounting frame is hidden.

Fig. 3 is a top view of the lower air-out assembly of the present invention.

Fig. 4 is a schematic structural diagram of the roller of the present invention.

The figure includes:

the device comprises a conveying belt 1, a first mounting frame 2, a second mounting frame 3, a guide assembly 4, a guide rotating shaft 41, a guide roller 42, a conveying mechanism 5, a conveying rotating shaft 51, a roller 52, a rubber elastic ring 521, a driving part 6, a cleaning mechanism 7, an upper cleaning nozzle group 71, a lower cleaning nozzle group 72, a recovery water tank 73, a filtering assembly 731, a water pump 7311, a hose 7312, a filtering core 7313, a drying and impurity removing mechanism 8, an upper air outlet assembly 81, an air outlet groove 811, a lower air outlet assembly 82, an air outlet 821, a hot air blower 83, a PCB board 9 and a mounting bracket 10.

Detailed Description

To facilitate understanding of the present invention for those skilled in the art, the present invention will be described in further detail with reference to the following detailed description and accompanying drawings.

As shown in fig. 1 to 4, the present invention provides a PCB cleaning apparatus, which comprises a transmission belt 1, a first mounting frame 2, a second mounting frame 3, and a transmission mechanism 5 disposed between the first mounting frame 2 and the second mounting frame 3 for transmitting a PCB 9. A plurality of guide assemblies 4 are arranged on the first mounting frame 2 and the second mounting frame 3. Wherein, the transmission band 1 can be used for connecting a process.

A driving member 6 for controlling the transport mechanism 5 is provided on the first mounting frame 2, and the driving member 6 is a motor in this embodiment. Install wiper mechanism 7 and stoving edulcoration mechanism 8 along direction of transfer on first mounting bracket 2 and second mounting bracket 3 in proper order, wiper mechanism 7 and stoving edulcoration mechanism 8 are all fixed at first mounting bracket 2 and second mounting bracket 3 through installing support 10.

The guide assembly 4 includes a guide rotating shaft 41 provided on the first mounting frame 2 and the second mounting frame 3, and a guide roller 42 provided on the guide rotating shaft 41. The guide members 4 are arranged substantially symmetrically with respect to the center line of the apparatus as a whole, and can contact the PCB board 9 from both sides in the transfer direction. In specific implementation, a driving member for driving the guiding rotation shaft 41 to rotate may be further provided, so as to guide and assist in moving the PCB 9.

The transfer mechanism 5 includes a transfer shaft 51 provided between the first mounting frame 2 and the second mounting frame 3, and a plurality of rollers 52 uniformly provided on the transfer shaft 51. In the present embodiment, the roller 51 has a smaller axial thickness, so as to present a sheet-like shape, and the transmission connection between the driving member 6 and the transmission shaft 51 is a mature prior art, and the structure thereof will not be described in detail.

The drying and impurity removing mechanism 8 comprises an upper air outlet assembly 81 arranged above the conveying mechanism 5 and a lower air outlet assembly 82 arranged below the conveying mechanism 5. The upper air outlet component 81 and the lower air outlet component 82 are connected with an air heater 83, so that sundries such as residual dry film fragments on the PCB 9 can be blown off while drying is achieved. As shown in fig. 3, a plurality of air outlet holes 821 are uniformly formed on the lower air outlet assembly 82. The air outlet groove 811 of the upper air outlet component 81 is provided with a slender air outlet which can ensure that the PCB 9 on the conveying mechanism 5 is covered. The lower outlet assembly 82 includes a substantially rectangular outlet member, and the outlet holes 821 are uniformly disposed on the upper end surface of the lower outlet member, and the outlet holes 821 can concentrate the blown air relatively to increase the wind power per unit area. Under the cooperation of last air-out subassembly 81 and lower air-out subassembly 82, can adapt to the PCB board 9 of different specifications better, ensure effectively to clear away the debris in the PCB board 9 trompil, realize the comprehensive cleanness of PCB board 9.

The cleaning mechanism 7 includes an upper cleaning head group 71 disposed above the conveying mechanism 5, a lower cleaning head group 72 disposed below the conveying mechanism 5, and a recovery water tank 73 below the lower cleaning head group 72. In specific implementation, a water collecting tank may be disposed below the lower cleaning nozzle group 72, and the liquid sprayed from the upper cleaning nozzle group 71 and the lower cleaning nozzle group 72 flows into the water collecting tank and then flows into the recovery water tank 73 from the water collecting tank. The recovery water tank 73 communicates the upper cleaning shower head group 71 and the lower cleaning shower head group 72 through the filter assembly 731. The filtering assembly 731 includes a hose 7312 connecting the recovery water tank 73, the upper cleaning shower head group 71 and the lower cleaning shower head group 72, a water pump 7311 and a filter 7313 connected to the hose 7312.

As shown in fig. 2, an anti-slip layer is provided on the surface of the roller 52. In this embodiment, the anti-slip layer is a rubber elastic ring 521, and in particular, the outer surface of the roller 52 may be made of an appropriate anti-slip material according to the requirement. As shown in fig. 4, a plurality of protrusions are uniformly arranged on the outer surface of the rubber elastic ring 521, and the protrusions can reduce the contact surface between the roller and the circuit board, and reduce the possibility of damage to the PCB 9.

The upper cleaning nozzle group 71, the lower cleaning nozzle group 72, the upper air outlet assembly 81 and the lower air outlet assembly 82 are sequentially mounted on the first mounting frame 2 and the second mounting frame 3 along the conveying direction. In specific implementation, the installation sequence can be adjusted according to specific requirements.

The utility model discloses during the use, will open driving piece 6 earlier, transmission band 1 transports PCB board 9 to transport mechanism 5 on. The PCB 9 is sequentially cleaned by the upper cleaning nozzle group 71 and the lower cleaning nozzle group 72, and then sequentially dried by the upper air-out assembly 81 and the lower air-out assembly 82. The used liquid flows into the water collection tank and then into the recovery water tank 73, passes through the filter assembly 731, and then flows into the cleaning mechanism 7.

During specific implementation, a heating oven can be arranged between the cleaning mechanism 7 and the drying and impurity removing mechanism 8, so that the drying effect of the PCB 9 is ensured to the maximum extent. Meanwhile, the cleaning mechanism 7 and the drying and impurity removing mechanism 8 can be set to be more than one, and the specific number is set according to specific requirements, for example, the adaptive setting can be carried out according to the specifications of the produced circuit board.

The utility model discloses a stoving edulcoration mechanism includes air-out subassembly and air-out subassembly down, wherein goes up the structure that the air-out subassembly adopted the air-out groove, can cover whole PCB board completely, makes the PCB board receive even wind direction pressure, and the air-out subassembly has a plurality of exhaust vents down to can effectively clear away the impurity of PCB board through-hole, promote the product yield, reduce rework rate and disability rate, thereby reduce manufacturing cost, improve production efficiency.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the scope of the included claims.

Claims

1. The PCB cleaning device comprises a conveying belt (1) and is characterized by further comprising a first mounting frame (2), a second mounting frame (3) and a conveying mechanism (5) arranged between the first mounting frame (2) and the second mounting frame (3), wherein more than two guide assemblies (4) are arranged on the first mounting frame (2) and the second mounting frame (3); a driving piece (6) is arranged on the first mounting frame (2); the conveying mechanism (5) comprises a conveying rotating shaft (51) arranged between the first mounting frame (2) and the second mounting frame (3) and rollers (52) uniformly arranged on the conveying rotating shaft (51), and at least two rollers (52) are arranged; a cleaning mechanism (7) and a drying and impurity removing mechanism (8) are sequentially arranged on the first mounting frame (2) and the second mounting frame (3) along the conveying direction; the drying and impurity removing mechanism (8) comprises an upper air outlet assembly (81) arranged above the conveying mechanism (5) and a lower air outlet assembly (82) arranged below the conveying mechanism (5); the upper air outlet assembly (81) is provided with an air outlet groove (811), and the direction of the air outlet groove (811) is vertical to the conveying direction of the conveying mechanism (5); and a plurality of air outlet holes (821) are uniformly formed in the lower air outlet assembly (82).

2. The PCB cleaning device of claim 1, wherein the upper air outlet assembly (81) is staggered from the lower air outlet assembly (82) in the horizontal direction.

3. The PCB cleaning device according to claim 1, wherein the upper air outlet component (81) and the lower air outlet component (82) are connected with a hot air blower (83).

4. The PCB cleaning device according to claim 1, wherein the cleaning mechanism (7) comprises an upper cleaning nozzle group (71) arranged above the conveying mechanism (5), and a lower cleaning nozzle group (72) arranged below the conveying mechanism (5); the upper cleaning spray head group (71) and the lower cleaning spray head group (72) are arranged in a staggered mode in the horizontal direction.

5. The PCB cleaning device according to claim 4, wherein the washing mechanism (7) further comprises a recovery water tank (73) disposed below the lower washing nozzle group (72), the recovery water tank (73) communicating the upper washing nozzle group (71) and the lower washing nozzle group (72) through a filtering assembly (731).

6. The PCB cleaning device according to claim 1, wherein the surface of the roller (52) is provided with an anti-slip layer.

7. The PCB cleaning device according to claim 6, wherein the anti-slip layer of the roller (52) is a rubber elastic ring (521).

8. The PCB cleaning device of claim 7, wherein a plurality of protrusions are uniformly arranged on the outer surface of the rubber elastic ring (521).

9. The PCB cleaning device according to claim 1, characterized in that the washing mechanism (7) is provided with at least one; the drying and impurity removing mechanism (8) is provided with at least one drying and impurity removing mechanism.