TW201910007A - Air-walled anti-stick spray coating structure - Google Patents

Abstract

The present invention provides an air-walled anti-stick spray coating structure comprising: an air wall injection module having a pneumatic flow path and an air nozzle; and a paint injection module having a spout flow path and a paint nozzle is formed on one side of the air nozzle. With embodiments of the present invention, various types of screws can be process during the coating, in addition to precision can be applied topically, but also capable of controlling the region which need not be coated in the coating paint is not sticking problems.

Description

Air wall type anti-stick coating structure

The invention relates to a gas wall type anti-adhesive spraying structure, in particular to a gas wall type anti-adhesive spraying structure for micro-small screw coating.

Screws are a common fastener that is widely used in machinery, appliances, and buildings. Generally, the material is metal or plastic, and the groove is engraved with a groove on the surface. The thread is a helically inclined surface that surrounds the side of the screw. The main function of the screw is to join two objects, or to fix the position of an object. Generally, the top diameter of the screw is large. Commonly, there are round, square or regular hexagons. If the top is a regular hexagon, you can use a wrench to turn the screw. If the top is round, the top of the top will also have grooves, which is convenient for use. Screwdriver turns the screw.

With the development of modern industry, many screws have special functions, such as anti-loose, leak-proof, adjustable, anti-weld slag, lubrication, anti-locking, and pre-assembly... and these functions need to be coated by Special coatings are used to achieve different effects. In the coating process, some electronic products have very small screws, sometimes only a few centimeters in length. How to effectively coat the screw is already a The big problem is how to make the coating not stick to the surface of the nut when coating. It is a technical difficulty.

As shown in Fig. 1, it is a screw 30 having a total length of about 2 cm. After the coating is applied, the original spray 230 should only be applied to the normal coating zone 310 of the screw 30, but Due to the very small volume of the screw 30, coupled with conventional techniques, the spray material 230, in addition to being coated in the normal coating zone 310, adheres to the non-coated zone 320, such as the surface of the nut, for certain Precision products, such screws with poor adhesion, will not be used in quality.

The invention relates to a gas wall type anti-adhesive spraying structure, which mainly solves the problem of how to accurately perform partial coating when various types of screws are applied, and also avoids areas that do not need to be coated. The problem of paint sticking occurs.

The invention provides a gas wall type anti-adhesive spraying structure, comprising: a gas wall jetting module having a pneumatic flow passage and an air nozzle, the air nozzle is formed at an outlet of the air pressure flow passage; and a paint spraying mold The group has a spray channel and a spray nozzle, and the spray nozzle is formed at the outlet of the spray channel; wherein the spray nozzle is formed on one side of the air nozzle.

By the implementation of the present invention, at least the following advancements can be achieved: 1. The coating of the local area can be effectively carried out. Second, precise control can be avoided to avoid coating areas that are not coated.

As shown in FIG. 2 to FIG. 5, the present embodiment is a gas wall type anti-adhesive spraying structure 100 comprising: a gas wall jetting module 10; and a paint spraying module 20.

The gas wall injection module 10 has a pneumatic flow passage 110 and an air nozzle 120. The air nozzle 120 is formed at the outlet of the pneumatic flow passage 110. The pneumatic flow passage 110 is supplied with a gas with pressure by the air inlet 111. After passing through the air nozzle 120 and ejecting, an airlock or gas wall 130 will be formed.

In order to allow the gas pressure channel 110 to supply a gas having a pressure, it can effectively become an air brake or a gas wall 130, so that the air nozzle 120 can be designed as a flat structure. In addition, the air nozzle 120 can be designed into other shapes in addition to the flat structure, and the shape and range of the jet airflow can be controlled by the shape of the air nozzle 120, and the air brake or air wall 130 thus formed can be adapted accordingly. Products that achieve different isolation effects.

The paint spray module 20 has a spray channel 210 and a spray nozzle 220. The spray nozzle 220 is formed at the outlet of the spray channel 210, and the spray channel 210 is sprayed by the feed end 213. The material 230 is formed by mixing the gas with pressure and the coating material. When the spray material 230 passes through the spray nozzle 220, it is sprayed to the screw 30 or other to be sprayed. Type of object.

The design of the spray nozzle 220 is formed at the outlet of the spray channel 210. In order to provide the pressurized gas to the spray flow channel 210, the paint can be effectively sprayed and coated, so that the spray nozzle 220 can be designed. Become a flat structure. In addition, the spray nozzle 220 can also be designed in other shapes, and by the shape of the spray nozzle 220, the spray direction and range of the spray material 230 can be controlled, so that different spray effects can be achieved.

In order to enable the spray nozzle 220 to uniformly distribute the spray material when the spray nozzle is sprayed, the spray nozzle 220 can be connected to the spray nozzle 220 to further form a spray-like spray structure 211 having a diffusion shape. In addition, in order to make the gas field at the jet angle structure 211 smooth, the bottom of the jet angle structure 211 can be designed as a metal runner bottom plate 212, such as stainless steel.

The flow channel bottom plate 212 not only allows the gas field at the jet angle structure 211 to be smooth, but also the flow channel bottom plate 212 is used to separate the pneumatic flow channel 110 and the spray channel 210, so that the pneumatic flow channel 110 and the spray channel 210 can be The juxtaposition does not interfere with each other. In addition, the gas wall jetting module 10 or the paint jetting module 20 of the entire gas wall anti-adhesive spraying structure 100 may be a metal material structure, such as copper material.

As shown in FIG. 6A and FIG. 6B, in the present embodiment, the air damper or the gas wall 130 formed by the air nozzle 120 is mainly used to form an isolation layer, and the separation layer prevents the nozzle 220 from being ejected. The paint falls and thereby limits the paint to a certain spray range, so that when the coating is applied, it is applied only to the normal coating zone 310 of the screw without the screw head and the seat surface, etc. The portion of the cloth area 320 is adhered by the spray material 230, and therefore, the spray nozzle 220 is formed on one side of the air nozzle 120.

In a more specific embodiment, the air nozzle 120 is disposed on the lower side of the nozzle 220. Further, since the air nozzles 120 and the spray nozzles 220 have a flat structure and are juxtaposed to each other, the gas wall 130 formed in the second direction is also juxtaposed in parallel with the discharged paint.

In order to allow the air brake or the air wall 130 to have a better effect, the runner floor 212 can be designed to have an extension 214 and the extension 214 protrudes from the air nozzle 120 and the nozzle 220 so that The jets of the air nozzles 120 and the sprays 30 of the spray nozzles 220 can travel more efficiently.

As shown in FIG. 7, in order to effectively recover the remaining material after spraying, and further enhance the action of the air nozzle 120 and the spray nozzle 220, it is possible to correspond to the position of the spray nozzle 220, that is, the screw to be sprayed. On the other side of the 30, a residual material recovery module 40 can be further disposed and the residual material recovery module 40 can be an aspirating structure.

However, the above embodiments are intended to illustrate the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement it, and not to limit the scope of the patent of the present invention. Equivalent modifications or modifications made by the spirit of the disclosure should still be included in the scope of the claims described below.

100‧‧‧Air wall anti-stick coating structure

10‧‧‧ gas wall jet module

110‧‧‧Pneumatic runner

111‧‧‧ Intake nozzle

120‧‧‧air nozzle

130‧‧‧Airlock or gas wall

20‧‧‧ Paint Spray Module

210‧‧‧jet flow channel

211‧‧‧Spray angle structure

212‧‧‧ runner floor

213‧‧‧ Feeding end

214‧‧‧Extension

220‧‧‧ spray nozzle

230‧‧‧Spray

30‧‧‧ screws

310‧‧‧Normal coating area

320‧‧‧Uncoated area

40‧‧‧Residual material recovery module

[Fig. 1] is a schematic view showing a poor adhesion of a coating after being sprayed by a screw; [Fig. 2] is a perspective view of a three-dimensional embodiment of a gas wall type anti-adhesive spraying structure of the present invention; [Fig. 3] FIG. 4 is a perspective view of a cross-sectional view taken along line AA of FIG. 2; FIG. 5 is a cross-sectional view of the second embodiment of the present invention; FIG. An exploded embodiment of a gas wall type anti-stick coating structure; [Fig. 6A] is a view showing an application example of a gas wall type anti-adhesive spraying structure according to the present invention; [Fig. 6B] is a screw type An embodiment of a gas wall type anti-adhesive spray structure after spraying; and [Fig. 7] is a view of an embodiment of the present invention further including a residual material recovery module.

Claims (10)

A gas wall type anti-adhesive spraying structure, comprising: a gas wall jetting module having a pneumatic flow passage and an air nozzle, the air nozzle being formed at an outlet of the air pressure flow passage; and a paint spraying module And having a spray nozzle and a spray nozzle formed at an outlet of the spray flow passage; wherein the spray nozzle is formed on one side of the air nozzle. The spray structure of claim 1, wherein the air nozzle or the spray nozzle has a flat structure. The spray structure of claim 1, wherein the spray flow path has a diffused spray angle structure at the nozzle. The spray structure of claim 3, wherein the bottom of the spray angle structure is a metal flow channel bottom plate. The spray structure of claim 1, wherein the gas wall spray module is a metal structure. The spray coating structure of claim 1, wherein the paint spray module is a metal structure. The spray coating structure of claim 1, wherein the air nozzle and the spray nozzle are respectively flat and juxtaposed to each other. The spray coating structure of claim 7, wherein the air nozzle has an extension portion and protrudes from the spray nozzle by the extension portion. The spray structure of claim 7, wherein the air nozzle is disposed on a lower side of the spray nozzle. The spray coating structure of claim 1, further comprising a residual material recovery module disposed corresponding to the spray nozzle and having an aspirating structure.