阅读说明：本技术 一种用于led显示屏灯板模组的补胶方法及装置和应用 (Glue supplementing method and device for LED display screen lamp panel module and application ) 是由 覃增 奉振锋 段俞廷 谭国栋 李云飞 周明 于 2019-10-31 设计创作，主要内容包括：本发明属于LED显示屏制造领域,具体涉及一种用于LED显示屏灯板模组的补胶方法及装置和应用。包括如下步骤a：对LED显示屏灯板模组边沿进行喷气,使灌封胶表面震动促使灌封胶流动,直至灌封胶渗入LED灯珠与边框的间隙并完全填充所有间隙。该补胶装置包括喷气部件、模组固定部件,喷气部件包括高压气源、与高压气源连通的喷气头,喷气头设有喷气嘴,所述喷气头固定器通过升降机构与模组固定部件相连,所述高压气源设有调节阀和气压表。相对于手动牵引细线补胶方法,本补胶方法和提供的补胶装置操作简单,效率更高。(The invention belongs to the field of LED display screen manufacturing, and particularly relates to a glue supplementing method and device for a lamp panel module of an LED display screen and application. The method comprises the following steps of a: and spraying air to the edge of the lamp panel module of the LED display screen, and vibrating the surface of the pouring sealant to promote the pouring sealant to flow until the pouring sealant permeates into gaps between the LED lamp beads and the frame and completely fills all the gaps. The glue supplementing device comprises a jet part and a module fixing part, wherein the jet part comprises a high-pressure gas source and a jet head communicated with the high-pressure gas source, the jet head is provided with a jet nozzle, a jet head fixer is connected with the module fixing part through a lifting mechanism, and the high-pressure gas source is provided with a regulating valve and a barometer. Compared with a manual traction fine line glue supplementing method, the glue supplementing method and the glue supplementing device are simple to operate and high in efficiency.)

1. The utility model provides a mend gluey method for LED display screen lamp plate module, includes the glue filling machine encapsulating step, characterized by, still includes following step a: and spraying air to the edge of the lamp panel module of the LED display screen, and vibrating the surface of the pouring sealant to promote the pouring sealant to flow until the pouring sealant permeates into gaps between the LED lamp beads and the frame and completely fills all the gaps.

2. A glue filling device based on the step a of claim 1 is characterized by comprising a gas injection part and a module fixing part, wherein the gas injection part comprises a high-pressure gas source and a gas injection head communicated with the high-pressure gas source, the gas injection head is provided with a gas injection nozzle, when the glue filling device works, the LED display screen lamp panel module is fixed on the module fixing part, and the gas injection nozzle injects gas to the edge of the LED display screen lamp panel module.

3. The glue supplementing device according to claim 2, further comprising a gas spraying head fixer, wherein the gas spraying head comprises a gas gathering cavity, the gas gathering cavity is in a cone shape with a small top and a big bottom, a gas source input port is arranged at the top of the gas gathering cavity, the gas spraying nozzles are arranged around the bottom surface of the gas gathering cavity, the position distribution of the gas spraying nozzles is aligned with a row of LED lamp beads on the outermost periphery of the LED display screen lamp panel module, and the gas spraying head fixer fixes the gas gathering cavity right above the LED display screen lamp panel module during operation.

4. A glue filling apparatus according to claim 3, wherein the air jet head holder is connected to the module fixing member by a lifting mechanism, and the lifting mechanism includes, but is not limited to, a screw slider mechanism.

5. A glue filling device as claimed in claim 4, wherein the high-pressure air source is provided with a regulating valve and an air pressure gauge.

6. A glue filling device according to claim 2, characterized in that the air nozzle outlet area S does not exceed 2 mm.

7. The use method of the glue supplementing device based on claim 5 is characterized by comprising the following steps:

fixing an LED display screen lamp panel module which is not solidified after glue pouring;

adjusting a lifting mechanism, and setting the distance between the gas gathering cavity and the LED display screen lamp panel module so as to conveniently observe the glue permeation state of the edge of the LED display screen lamp panel module;

opening a high-pressure air source, adjusting the air pressure by an adjusting valve, slowly pressurizing and adjusting the output air pressure from 0 MPa, gradually enhancing and spraying the sensory air flow, observing the fluctuating and vibrating state of the surface of the potting adhesive, and keeping the air pressure to continuously spray air to the lamp panel module of the LED display screen until the potting adhesive penetrates into a gap when the potting adhesive on the periphery of the lamp panel module is locally sunken and begins to flow and does not overflow the frame;

and step four, closing the high-pressure air source, taking out the LED display screen lamp panel module fixed by the glue supplementing device, replacing and fixing the next LED display screen lamp panel module needing glue supplementing, and spraying air to the LED display screen lamp panel module according to the air pressure kept in the step three until the potting glue permeates into a gap.

8. The use method of the adhesive filling device according to claim 7, wherein in the second step, the distance between the air gathering cavity and the LED display screen lamp panel module is 40-60 mm.

Technical Field

The invention belongs to the field of LED display screen manufacturing, and particularly relates to a glue supplementing method and device for a lamp panel module of an LED display screen and application.

Background

The outdoor LED display screen is widely used in large squares, traffic road information boards and other occasions. A large-scale LED display screen is usually made up of dozens of standard LED display screen boxes; a standard LED display screen box body is formed by splicing and combining dozens of LED display screen lamp panel modules; therefore, the quality of each LED display screen lamp panel module is required to be reliable and stable when a high-quality LED display screen is manufactured.

LED display screen lamp plate module is assembled by LED lamp pearl, panel, circuit board and frame integration usually, and wherein the interval of LED lamp pearl is littleer, and final LED display screen's pixel density is higher, and the effect is better. However, the small-spacing LED lamp beads bring difficulty to the waterproof sealant for encapsulating the LED display screen lamp panel module, as shown in fig. 1, the smaller the spacing between the LED lamp beads is, the smaller the gap between the LED lamp beads outside each lamp panel module and the frame inevitably can be caused, the viscosity of the sealing glue is generally large, the flowability is relatively weak, when the sealing glue is used, the LED lamp beads in the middle of the module are communicated with each other because of all directions, the problem is not large, the flowing of the sealing glue in the narrow gap between the LED lamp beads on the outermost side and the frame edge is difficult, therefore, the glue is only filled into the lamp panel module by the glue filling machine, if the glue filling treatment is not performed to the gap glue filling at the module edge, the situation that the sealant is not in place can be caused, the waterproof sealing performance of the lamp panel module. The prior art adopts the fine rule to draw glue drainage to peripheral filling clearance usually, and the glue filling machine is to the lamp plate module encapsulating back promptly, makes the handheld fine rule of operation workman again around the module around the round draw glue embedment peripheral less clearance, and this method shortcoming lies in to the staff that pulls the fine rule having high expectations after the clearance is full of all filling, and its action can not be too fast, otherwise glue overflows, also can not be too slow, otherwise glue solidifies and can not pull, and personnel need highly concentrated spirit in the course of the work but the easy tired production quality problems that produces.

Disclosure of Invention

The invention aims to provide a glue supplementing method and device for a lamp panel module of an LED display screen and application of the glue supplementing method and device, so as to overcome the defects of the glue supplementing technology of the lamp panel module of the LED display screen.

The technical scheme for realizing the aim of the invention is that,

the utility model provides a mend gluey method for LED display screen lamp plate module, includes the glue filling machine encapsulating step, and is different with prior art, still includes following step a: and spraying air to the edge of the lamp panel module of the LED display screen, and vibrating the surface of the pouring sealant to promote the pouring sealant to flow until the pouring sealant permeates into gaps between the LED lamp beads and the frame and completely fills all the gaps.

The method is simple to operate and high in efficiency compared with a manual traction fine line glue supplementing method.

According to the method, the scheme provides a glue supplementing device, and the glue supplementing device comprises a gas injection part and a module fixing part, wherein the gas injection part comprises a high-pressure gas source and a gas injection head communicated with the high-pressure gas source, the gas injection head is provided with a gas injection nozzle, when the glue supplementing device works, the LED display screen lamp plate module is fixed on the module fixing part, and the gas injection nozzle injects gas to the edge of the LED display screen lamp plate module.

Further, still include jet-propelled head fixer, the jet-propelled head is including gathering the gas cavity, gathers the big end down and is the taper of gas cavity, gathers gas cavity top and is equipped with the air supply input port, and the air nozzle setting is gathering around the bottom surface of gas cavity, and the during operation, the jet-propelled head is fixed directly over the LED display screen lamp plate module, and the air nozzle aligns with the outer row of LED lamp pearl of LED display screen lamp plate module, and during operation, the jet-propelled head fixer will gather the gas cavity and fix directly over the LED display screen lamp plate module.

Further, the air injection head fixer is connected with the module fixing component through a lifting mechanism, and the lifting mechanism comprises a screw rod sliding block mechanism.

Further, the high-pressure air source is provided with a regulating valve and an air pressure gauge.

Further, the exit area S of the air nozzle does not exceed 2 mm.

According to the glue supplementing device, glue can be supplemented in the gap of the frame of the lamp panel module of the LED display screen with small spacing according to the jet-propelled vibration principle.

The use method of the glue supplementing device comprises the following steps:

fixing an LED display screen lamp panel module which is not solidified after glue pouring;

adjusting a lifting mechanism, and setting the distance between the gas gathering cavity and the LED display screen lamp panel module so as to conveniently observe the glue permeation state of the edge of the LED display screen lamp panel module;

opening a high-pressure air source, adjusting the air pressure by an adjusting valve, slowly pressurizing and adjusting the output air pressure from 0 MPa, gradually enhancing and spraying the sensory air flow, observing the fluctuating and vibrating state of the surface of the potting adhesive, and keeping the air pressure to continuously spray air to the lamp panel module of the LED display screen until the potting adhesive penetrates into a gap when the potting adhesive on the periphery of the lamp panel module is locally sunken and begins to flow and does not overflow the frame;

and step four, closing the high-pressure air source, taking out the LED display screen lamp panel mould fixed by the glue supplementing device, replacing and fixing the next LED display screen lamp panel mould needing glue supplementing, and spraying air to the LED display screen lamp panel mould according to the air pressure kept in the step three until the potting glue permeates into a gap.

Further, the distance between the air gathering cavity and the LED display screen lamp panel module in the second step is 40-60 mm.

The use method of the glue supplementing device can ensure that the glue supplementing process can be completed quickly, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of a lamp panel module of an LED display screen;

FIG. 2 is a schematic structural diagram of a glue filling apparatus according to an embodiment of the invention;

FIG. 3 is a schematic view of a showerhead structure according to an embodiment of the present invention.

In the figure, 1, an LED display screen lamp panel module; 11, LED lamp beads; 12. a frame; 2. a gas showerhead; 21. a gas collecting cavity; 22. an air nozzle; 3. an air jet head holder; 4. a screw rod sliding block mechanism; 5. a module fixture; 6. a base. The black arrows indicate the direction of the air flow input.

Detailed Description

The present invention will be described in detail with reference to examples.

Referring to fig. 1-3, a glue-filling device for a lamp panel module of an LED display screen comprises an air-jet component, a module fixing component, a lifting mechanism, and an air-jet head fixer 3,

the module fixing component is used for fixing the LED display screen lamp panel module and comprises a base 6 and a module clamp 5 arranged on the base 6,

the lifting mechanism is a screw rod sliding block mechanism 4 in the embodiment, the screw rod sliding block mechanism 4 is arranged on a base 6, a screw rod is vertically arranged, an air injection head fixer 3 is arranged on a sliding block,

the air injection component comprises a high-pressure air source and an air injection head 2, the air injection head 2 comprises an air gathering cavity 21 and air injection nozzles 22, the air gathering cavity 21 is tapered from top to bottom, an air source input port is arranged at the top of the air gathering cavity 21 and is communicated with the high-pressure air source, the air injection nozzles 22 are arranged around the bottom surface of the air gathering cavity 21, the position distribution of the air injection nozzles is based on that the air injection nozzles are aligned with a row of LED lamp beads on the outermost periphery of the LED display screen lamp panel module, the position of the air injection nozzles 22 is reasonably arranged to facilitate the simultaneous air injection on the four-directional edges of the LED display screen lamp panel module, so that the,

the high-pressure air source is provided with a regulating valve and a barometer, the regulating valve is used for regulating the output air pressure of the high-pressure air source, the barometer is used for displaying the output air pressure value,

the air jet head fixer 3 is used for fixing the air gathering cavity 21, and during work, the air jet head fixer fixes the air gathering cavity right above the LED display screen lamp panel module 1, so that the distance between the air jet nozzle 22 and the LED display screen lamp panel module 1 is kept, the stability of air jet pressure during work is kept, the work efficiency is improved, the labor intensity of operators is reduced, and the air jet head fixer 3 can be, but is not limited to, a spring clamp and other devices; under the drive of lead screw slider mechanism, gather the gas cavity 21 and can go up and down in LED display screen lamp plate module 1 top, jet head height-adjustable is favorable to this equipment to mend gluey to the LED display screen lamp plate module of different specifications.

The application method of the glue filling device comprises the following steps, the glue filling is carried out on the P3 lamp panel module for short, the distance between points is 3mm, the dimension specification of the P3 lamp panel module is length multiplied by width multiplied by height: 48.7mm by 10 mm,

step one, fixing a P3 lamp panel module which is not solidified after glue pouring by using a module clamp 5;

rotating the screw rod, and adjusting the height of the gas nozzle, wherein the distance between the gas collecting cavity and the P3 lamp panel module is 50mm, the gas sprayed out when the distance is too high is easy to diffuse, and the glue permeation state at the edge of the lamp panel module is inconvenient to observe when the distance is too low;

opening a high-pressure air source, adjusting the air pressure by an adjusting valve, slowly pressurizing and adjusting the output air pressure from 0 MPa, gradually enhancing and spraying the sensory air flow, observing the fluctuating and vibrating state of the surface of the potting adhesive, and keeping the air pressure to continuously spray air to the lamp panel module of the LED display screen until the potting adhesive penetrates into a gap when the potting adhesive on the periphery of the lamp panel module is locally sunken and begins to flow and does not overflow the frame;

step four, close high pressurized air source, take out the P3 lamp plate module in the module anchor clamps 5, change and fix the next P3 lamp plate module that needs to mend and glue, carry out jet-propelled until potting glue infiltration into a gap to this LED display screen lamp plate module with the atmospheric pressure size of keeping in the step three, keep the quick continuity of operation of glue is mended to the LED display screen lamp plate module of the same model to the height of jet-propelled head and fixed atmospheric pressure value, can ensure product quality's stability, improve work efficiency.