CN-121972350-A - Mini LED PCB board side spraying device

CN121972350ACN 121972350 ACN121972350 ACN 121972350ACN-121972350-A

Abstract

The invention discloses a Mini LED PCB side spraying device which comprises a product transplanting rotating module, a spraying mechanism and a lamp surface wiping detection mechanism which are arranged above the product transplanting rotating module and cross an operation area of the product transplanting rotating module, a side spraying detection mechanism arranged below the spraying mechanism, a glue spraying valve spray head cleaning mechanism arranged on one side of the product transplanting rotating module and positioned beside the spraying mechanism, wherein the product transplanting rotating module is used for bearing a PCB and driving the PCB to conduct angle switching at a spraying station so that different sides of the PCB face the spraying mechanism in sequence, and the spraying mechanism comprises a Y-axis driving mechanism, a Z-axis driving module arranged on the output end of the Y-axis driving mechanism, a UV curing lamp cap arranged on the output end of the Z-axis driving module, a precise glue spraying valve, a CCD vision guiding assembly and a distance sensor.

Inventors

SUN YONG
XU ZHIGANG
MA WENTENG
YANG JIEWEN
YANG QISHENG

Assignees

深圳市博辉特科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260202

Claims (10)

1. A Mini LED PCB board side spraying device is characterized by comprising a product transplanting rotating module, a spraying mechanism, a lamp face wiping detection mechanism, a side spraying detection mechanism, a spraying valve nozzle cleaning mechanism, a PCB board spraying station position angle switching driving mechanism, a Z-axis driving module, a UV curing lamp cap, a precise spraying valve, a CCD visual guide assembly and a distance sensor, wherein the spraying mechanism and the lamp face wiping detection mechanism are arranged above the product transplanting rotating module and transversely span an operation area of the product transplanting rotating module, the side spraying detection mechanism is arranged below the spraying mechanism, the spraying valve nozzle cleaning mechanism is arranged at one side of the product transplanting rotating module and is positioned beside the spraying mechanism, the product transplanting rotating module is used for carrying a PCB board and driving the PCB board to conduct angle switching at the spraying station position so that different sides of the PCB board face sequentially face to the spraying mechanism, the spraying mechanism comprises a Y-axis driving mechanism, a Z-axis driving module arranged at the output end of the Y-axis driving mechanism, a UV curing lamp cap, the precise spraying valve, the CCD visual guide assembly and the distance sensor are arranged at the output end of the Z-axis driving module, the distance sensor is used for detecting the distance between the side edge of the PCB board and the precise spraying valve, the Z-axis driving module is used for adjusting the height of the precise spraying valve according to the detection result of the distance sensor, the Z-axis driving module is used for collecting the side profile information of the PCB board and outputting corresponding Z-direction movement tracks, the Z-direction movement tracks are used for conducting the Z-direction movement to the Z-direction driving mechanism, and cleaning the precise spraying valve, and cleaning the Z-direction is used for cleaning the side-direction, and cleaning the side surface, and the position of the PCB board is used for cleaning, and the side-plane is used for cleaning.
2. The Mini LED PCB side spraying device according to claim 1, wherein the product transplanting rotating module comprises a first X-axis linear module, a DD motor arranged on an output end of the first X-axis linear module, and a product carrier arranged on an output end of the DD motor, wherein the product carrier is used for placing a PCB, and the DD motor is used for driving the product carrier to conduct indexing rotation so as to realize sequential switching spraying of different sides of the PCB.
3. The Mini LED PCB side spraying device according to claim 1, wherein the Y-axis driving mechanism comprises a first Y-axis linear module, the Z-axis driving module comprises a first Z-axis linear module, the UV curing lamp cap, the precise glue spraying valve, the CCD visual guiding component and the distance sensor are sequentially arranged side by side, and the CCD visual guiding component comprises a CCD industrial camera.
4. The Mini LED PCB board side spraying device according to claim 1, wherein the side spraying detection mechanism comprises a second Y-axis linear module and a CCD side spraying detection assembly arranged on the output end of the second Y-axis linear module, and the CCD side spraying detection assembly comprises a side CCD industrial camera.
5. The Mini LED PCB board side spraying device according to claim 1, wherein the light surface wiping detection mechanism comprises a third Y-axis linear module, a second Z-axis linear module arranged on an output end of the third Y-axis linear module, a light surface wiping cleaning unit arranged on an output end of the second Z-axis linear module, and a CCD light surface detection assembly arranged on the back surface of the third Y-axis linear module, and the CCD light surface detection assembly comprises a CCD light surface detection industrial camera.
6. The Mini LED PCB side spraying device according to claim 1, wherein the lamp surface wiping cleaning unit comprises a fixed plate, a material receiving and rolling mechanism, a dust-free cloth self-wetting assembly, a material pressing assembly and a dust-free cloth sensor, wherein the material receiving and rolling mechanism, the dust-free cloth self-wetting assembly, the material pressing assembly and the dust-free cloth sensor are arranged on the fixed plate, and the dust-free cloth sensor is arranged at a discharge hole of the material receiving and rolling mechanism.
7. The Mini LED PCB board side spraying device of claim 6, wherein the material receiving and winding mechanism comprises a material receiving motor disposed at one end of the fixed plate, a waste collection roll disposed at an output end of the material receiving motor, a dust-free cloth discharge roll disposed at the other end of the fixed plate, and a plurality of first dust-free cloth traction rollers disposed on the fixed plate.
8. The Mini LED PCB side spraying device according to claim 6, wherein the dust-free cloth self-wetting assembly comprises a peristaltic pump arranged at one end of a fixed plate and positioned above a material receiving motor, a guide rail sliding block arranged below the fixed plate, a movable plate arranged on the guide rail sliding block, a fixed seat arranged at the upper part of the movable plate, a fixed support column with one end arranged in the fixed seat, a compression spring sleeved on the fixed support column, a fixed block arranged at the other end of the fixed support column and opposite to the lower guide rail sliding block, a cleaning spray pipe arranged on the movable plate and positioned at the lower part of the fixed seat, a cleaning block arranged at the lower part of the movable plate and positioned at the lower part of the cleaning spray pipe, and second dust-free cloth traction rollers positioned at two sides of the cleaning block, wherein the second dust-free cloth traction rollers are fixed on the fixed plate, and the cleaning spray pipe and the cleaning block are respectively provided with a pipe joint.
9. The Mini LED PCB side spraying device according to claim 6, wherein the pressing assembly comprises a pressing cylinder and a pressing sponge arranged at the output end of the pressing cylinder, and the pressing sponge is driven to press on the first dust-free cloth traction roller when the pressing cylinder is driven.
10. The Mini LED PCB board side spraying device of claim 1, wherein the glue valve spray head cleaning mechanism comprises a second X-axis linear module, a spray head cleaning unit disposed on an output end of the second X-axis linear module.

Description

Mini LED PCB board side spraying device Technical Field The invention relates to the technical field of spraying devices, in particular to a Mini LED PCB side spraying device. Background The Mini LED product is widely applied to the fields of display modules and the like due to the characteristics of high brightness, high contrast, high reliability and the like. In the manufacturing process of Mini LED products, the PCB is required to complete lamp bead welding, packaging and electrical property testing, and the side of the PCB is required to be coated, for example, the side is coated with protective glue, edge sealing or insulating coating, so that the side protection capability is improved, the appearance consistency is improved, and the reliability risk caused by side wetting, pollution or external impact is reduced. In the prior art, manual spraying or semi-automatic spraying is generally adopted for spraying the side edges of the Mini LED PCB, and the side edges of the LED PCB are sprayed after the LED PCB is fixed by a manual positioning or simple fixture. However, because the profile of the side edge of the PCB possibly has height fluctuation, step change and clamping error, the distance between the glue spraying valve and the side edge of the PCB and the spraying height easily fluctuate in the spraying process, so that the problems of uneven thickness of a coating, inconsistent spraying height, local spraying leakage or glue piling and the like are caused, and the coating quality and the appearance consistency of the side edge are affected. Meanwhile, the traditional spraying mode often needs to carry out reversing treatment on multiple sides of the PCB, manual overturning or repeated positioning is generally relied on, the edge changing process is time-consuming and positioning accuracy is greatly affected by operators, spraying deviation or repeated spraying coverage is easily caused, and production efficiency and product consistency are further reduced. In addition, after the side spraying is accomplished, the PCB board lamp face probably receives spraying splash, dust or incomplete glue to pollute, influences and shows outward appearance and reliability, but in the prior art the lamp face is clean to adopt artifical clean or simple clean mode more, lacks stable wiping mechanism and detection means, leads to the clean effect of lamp face unstable, is difficult to realize the unanimous management and control of batch. Meanwhile, the glue spraying valve nozzle is easy to accumulate residual glue or block in the continuous spraying process, and if an effective online nozzle cleaning and maintaining mechanism is lacked, intermittent spraying, unstable glue discharging and even shutdown cleaning are easy to cause, so that the whole line productivity and the spraying consistency are affected. Therefore, a Mini LED PCB side spraying device capable of realizing continuous spraying of multiple sides of the PCB, having spraying highly stable control and side profile conformal spraying capability and effectively controlling spraying quality, lamp surface cleaning effect and spray head state of a glue spraying valve is urgently needed, so that the problems of poor spraying consistency, low efficiency, insufficient detection and maintenance capability and the like in the prior art are solved. Disclosure of Invention Aiming at the problems in the prior art, the invention provides a Mini LED PCB board side spraying device. In order to achieve the above purpose, the technical scheme of the invention is as follows: the invention provides a Mini LED PCB side spraying device which comprises a product transplanting rotating module, a spraying mechanism, a lamp face wiping detection mechanism, a side spraying detection mechanism, a spraying valve nozzle cleaning mechanism, a product transplanting rotating module, a Z-axis driving module, a CCD visual guide assembly and a distance sensor, wherein the spraying mechanism and the lamp face wiping detection mechanism are arranged above the product transplanting rotating module and transversely span an operation area of the product transplanting rotating module, the side spraying detection mechanism is arranged below the spraying mechanism, the spraying valve nozzle cleaning mechanism is arranged at one side of the product transplanting rotating module and is positioned beside the spraying mechanism, the product transplanting rotating module is used for carrying a PCB and driving the PCB to conduct angle switching at a spraying station so that different sides of the PCB face sequentially face the spraying mechanism, the spraying mechanism comprises a Y-axis driving mechanism, a Z-axis driving module, a UV curing lamp cap, a precise spraying valve, a CCD visual guide assembly and a distance sensor, the Z-axis driving module is arranged at the output end of the Y-axis driving module, the distance sensor is used for detecting the distance between the side of the PCB face and