CN-224218601-U - PCB circuit board self-cleaning mechanism

Abstract

The utility model relates to the field of cleaning of PCB circuit boards and discloses an automatic cleaning mechanism for the PCB circuit boards, which comprises a mounting shell, wherein a cleaning shell is fixedly embedded in the top surface of the mounting shell, a protective cover plate is fixedly arranged above the cleaning shell on the top surface of the mounting shell, a conveying chain is arranged in the cleaning shell, a sprocket driving mechanism connected with the conveying chain is arranged in the cleaning shell, a limiting and fixing assembly is arranged on the outer surface of the conveying chain, and comprises a first mounting bracket, a second side limiting wheel, a second mounting bracket, a bottom limiting wheel, a limiting groove and a PCB circuit board body.

Inventors

• ZHOU YUANYUAN
• Mo Jianxiu
• XIE WEIXIN
• CHEN LIANG
• LIN LI
• LING QIMING
• XIE CHUNLEI

Assignees

• 梅州市奔创电子有限公司

Dates

Publication Date

20260508

Application Date

20250515

Claims (6)

1. 1. The automatic cleaning mechanism for the PCB comprises a mounting shell (1) and is characterized in that a cleaning shell (2) is fixedly embedded in the top surface of the mounting shell (1), a protective cover plate (3) is fixedly arranged above the cleaning shell (2) on the top surface of the mounting shell (1), a conveying chain (4) is arranged in the cleaning shell (2), a chain wheel driving mechanism (5) connected with the conveying chain (4) is arranged in the cleaning shell (2), and a limiting and fixing assembly (6) is arranged on the outer surface of the conveying chain (4); Spacing fixed subassembly (6) are including installing support one (601), limit wheel (602), installing support two (603), bottom limit wheel (604), spacing groove (605) and PCB circuit board body (606), a plurality of installing supports one (601) are installed to the equidistant array of surface of conveying chain (4), and a plurality of the inside of installing support one (601) is all rotated and is connected with limit wheel (602), the surface of conveying chain (4) is located the limit side fixed mounting of installing support one (601) and has a plurality of installing support two (603), and a plurality of the inside of installing support two (603) is all fixed mounting has bottom limit wheel (604), spacing groove (605) have all been seted up to the surface of limit wheel (602) and bottom limit wheel (604), the inside grafting of spacing groove (605) has PCB circuit board body (606), the inside of protective cover plate (3) is provided with automatic wiper mechanism (10) that are used for washing PCB circuit board body (606).
2. 2. The automatic cleaning mechanism for the PCB circuit board of claim 1, wherein the automatic cleaning mechanism (10) comprises a spray head liquid supply pipe (101), a cleaning spray head (102), a connecting pipe (103), a conveying pipe (104), a liquid storage tank (105), a high-pressure liquid pump (106) and a liquid supply pipeline (107), wherein a plurality of spray head liquid supply pipes (101) are arranged in an equidistant array in the protective cover plate (3), the cleaning spray heads (102) are fixedly arranged at the ends, close to each other, of the spray head liquid supply pipes (101), the connecting pipe (103) is fixedly arranged at the outer surface of the spray head liquid supply pipe (101), one end of the connecting pipe (103) extends to the outer part of the protective cover plate (3), the conveying pipe (104) is fixedly arranged at the end, extending to the outer part of the protective cover plate (3), the liquid storage tank (105) is arranged in the inner part of the protective cover plate (1), the high-pressure liquid pump (106) is arranged at one side of the protective cover plate (1), the liquid storage end of the high-pressure liquid pump (106) extends to the inner part of the protective cover plate (1) and the liquid supply pipeline (105) is fixedly arranged at one side of the liquid supply pipeline (107), and the liquid supply pipeline (107) is welded at one side of the liquid supply pipeline (106).
3. 3. The automatic cleaning mechanism for the PCB circuit board of claim 1, wherein a U-shaped air supply pipe (7) is fixedly arranged in the protective cover plate (3), a plurality of air injection holes (8) are symmetrically formed in the outer surface of the U-shaped air supply pipe (7), an air supply connecting pipe (9) is fixedly arranged on the outer surface of the U-shaped air supply pipe (7) close to the top end, and one end of the air supply connecting pipe (9) extends to the outer part of the protective cover plate (3) and is connected with an external air pump.
4. 4. The automatic cleaning mechanism for the PCB circuit board of claim 1, wherein the bottom surface of the cleaning shell (2) is fixedly provided with a recovery liquid discharge pipe (11), and one end of the recovery liquid discharge pipe (11) extends to the outside of the installation shell (1) and is connected with an external waste liquid recovery box.
5. 5. The automatic cleaning mechanism for the PCB circuit board of claim 1, wherein a rubber ring (12) is fixedly arranged in the limiting groove (605).
6. 6. The automatic cleaning mechanism for the PCB circuit board of claim 1, wherein the bottom surface of the installation shell (1) is connected with a locking moving wheel in a rotating way near the corners, and the bottom surface of the installation shell (1) is provided with adjusting support legs (13) at the side of the locking moving wheel.

Description

PCB circuit board self-cleaning mechanism Technical Field The utility model belongs to the technical field of PCB (printed circuit board) cleaning, and particularly relates to an automatic cleaning mechanism for a PCB. Background The PCB circuit board, namely the printed circuit board, is a provider of electric connection of electronic components, it is as the base material by insulating board, copper is covered and etched out the complicated conductive line through the specific technology above, there are structures such as the pad, via hole used for installing the electronic components at the same time, apply to all kinds of electronic products extensively, because in the production manufacturing process of PCB circuit board, can remain impurities such as soldering flux, tin slag, greasy dirt, dust, etc., these residual substances may influence the electrical behavior of the circuit board, cause the trouble such as short circuit, bad contact, etc., can corrode the circuit board in the course of long-term use, reduce its life, and the residual impurity does not accord with the quality standard and reliability requirement of the electronic product too, therefore need to wash PCB circuit board, in order to guarantee performance, quality and life of the circuit board. The utility model patent with the publication number of CN221010417U discloses a PCB circuit board cleaning machine, which comprises a cleaning box, wherein the cleaning box is provided with a cleaning channel, a conveying mechanism, a high-pressure spray head and a drainage channel are arranged in the cleaning channel, the conveying mechanism is connected with a driving motor for matching linkage, the conveying mechanism comprises a plurality of conveying shafts and a plurality of adjusting shafts, the conveying shafts and the adjusting shafts are alternately arranged along the conveying direction of the conveying mechanism, the adjusting shafts are connected with a plurality of reset shifting blocks, a flushing station is arranged between the reset shifting blocks, the positions of the reset shifting blocks correspond to the adjusting intervals, the top surfaces of the reset shifting blocks are narrowed to form a conical structure, a supporting wheel is used for supporting the PCB board for conveying, the reset shifting blocks shift the PCB board influenced by water flow, the PCB board is guided to fall back to the flushing station, the solvent on the PCB board can be completely cleaned, and the efficiency of subsequent processing is ensured. However, in the practical use process, the device is found that the anti-skid convex points on the surface of the supporting wheel are matched with the edges of the through holes of the PCB so as to reduce the movement; However, the anti-skid salient points are only protruding structures on the surface of the supporting wheel, so that the contact area between the anti-skid salient points and the edge of the through hole of the PCB is small, high-pressure water flow impact is difficult to resist, the circuit board is easy to shift, cleaning is not thorough, meanwhile, the circuit board is easy to interfere with the conveying mechanism in abnormal movement, blocking is caused, production efficiency is reduced, the single-sided cleaning function of the anti-skid salient points cannot meet the double-sided cleaning requirement, the application range and the processing capacity of equipment are limited, and the automatic cleaning mechanism for the PCB is provided. Disclosure of utility model The utility model aims to solve the problems and provide an automatic cleaning mechanism for a PCB. The technical scheme includes that the automatic cleaning mechanism for the PCB comprises a mounting shell, wherein a cleaning shell is fixedly embedded in the top surface of the mounting shell, a protective cover plate is fixedly arranged above the cleaning shell on the top surface of the mounting shell, a conveying chain is arranged in the cleaning shell, a chain wheel driving mechanism connected with the conveying chain is arranged in the cleaning shell, and a limiting and fixing assembly is arranged on the outer surface of the conveying chain; The limiting and fixing assembly comprises a first mounting bracket, a second mounting bracket, a bottom limiting wheel, limiting grooves and a PCB (printed circuit board) body, wherein a plurality of first mounting brackets are arranged on the outer surface of the conveying chain in an equidistant array mode, a plurality of first mounting brackets are connected with the first side limiting wheel in a rotating mode, a plurality of second mounting brackets are fixedly arranged on the outer surface of the conveying chain on the side of the first mounting bracket, a plurality of bottom limiting wheels are fixedly arranged on the inner surface of the second mounting bracket, limiting grooves are formed in the outer surface of the side limiting wheels and the outer surface of the bottom