CN212328642U

CN212328642U - Coating device

Info

Publication number: CN212328642U
Application number: CN202020487622.2U
Authority: CN
Inventors: 武应涛; 庞建军
Original assignee: Luoyang Kaizhong Shock Absorption Technology Co ltd
Current assignee: Luoyang Kaizhong Shock Absorption Technology Co ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2021-01-12
Anticipated expiration: 2030-04-07

Abstract

The utility model provides a coating device, including the shower nozzle, the shower nozzle contains: the shape of the nozzle surface is matched with that of a molding surface of a mold to be coated; a nozzle disposed on the nozzle face. According to the mold, at the molding surface of the mold to be coated, the distance between the nozzle surface and the molding surface is equal, the nozzles are located on the nozzle surface, so the distance between the nozzles and the molding surface is also equal, the nozzles are arranged in a plurality, and the coating of the mold release agent on the molding surface can be simultaneously completed through uniform distribution or nonuniform distribution, so that the uniformity of the coating of the mold release agent is improved, and the working efficiency is also improved. In addition, the release agent is coated between the molding surface and the nozzle surface, so that the release agent exhaust gas overflow can be effectively reduced, and the working environment can be improved.

Description

Coating device

Technical Field

The utility model relates to a rubber and plastic products production facility, in particular to coating unit of release agent.

Background

In a production line of rubber or plastic products, in order to ensure smooth removal of the products from a mold, it is necessary to uniformly coat a mold surface of the mold with a release agent before performing molding processing such as injection molding.

In the prior art, the operation of coating the release agent is completed by holding a spray gun by an operator, and the spray gun is moved along the molding surface of the mold to sequentially coat according to areas so as to coat the release agent on the molding surface of the mold.

In the prior art, along with the popularization of robots, manual operation is improved, and release agents are coated by using the robots. The robot controls the spray gun, the nozzle of the robot automatically adjusts the motion track according to the curve of the forming surface, and the controllability and the repeatability are improved.

A spray gun is used, the coating amount is large at a position close to the center of the spray nozzle, and the attached release agent is large; the coating amount is small and the amount of the release agent adhering to the nozzle is small at a position far from the center of the nozzle. The problem of uniformity of coating still remains. In contrast, the coating uniformity is improved by adopting a plurality of groups of micro-mist spray head technologies.

However, the prior art has a problem that it is difficult to apply a layer of release agent to the molding surface of a mold having an irregular shape such as a wavy shape, quickly and uniformly. Moreover, the spray head coats the release agent in the open space, so that the atomized release agent is easy to dissipate, air pollution is caused, and the working environment is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a coating device, its aim at can improve the homogeneity of release agent coating, improve the work efficiency of release agent coating and reduce the dissipation of release agent.

In order to achieve the above object, the present invention provides a coating apparatus, including a nozzle, the nozzle includes:

the shape of the nozzle surface is matched with that of a molding surface of a mold to be coated;

a nozzle disposed on the nozzle face.

Preferably, the spray head further comprises an aerosol cavity, and the aerosol cavity is connected with the release agent aerosol inlet pipe and the nozzle.

Preferably, the nozzle is rectangular, square, circular, oval, pentagonal, triangular, or crescent in shape.

Preferably, the nozzles are evenly distributed over the nozzle face.

Preferably, the opening area of the nozzle is adjustable.

Preferably, the spray head further comprises a first limiting surface, and the die to be coated comprises a second limiting surface, so that when the first limiting surface and the second limiting surface abut against each other, a gap is formed between the nozzle surface and the forming surface of the die to be coated.

Compared with the prior art, the utility model provides a coating device, including the shower nozzle, the shower nozzle contains: the shape of the nozzle surface is matched with that of a molding surface of a mold to be coated; a nozzle disposed on the nozzle face. According to the mold, at the molding surface of the mold to be coated, the distance between the nozzle surface and the molding surface is equal, and the nozzles are located on the nozzle surface, so the distance between the nozzles and the molding surface is also equal, the nozzles are arranged in a plurality, and the coating of the mold release agent on the molding surface can be simultaneously completed through uniform distribution or nonuniform distribution, so that the uniformity of the mold release agent coating is improved, and the working efficiency is also improved. In addition, the release agent is coated between the molding surface and the nozzle surface, so that the release agent exhaust gas overflow can be effectively reduced, and the working environment can be improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a coating apparatus of the present invention.

Fig. 2 is a schematic structural diagram of a die to be coated, which is suitable for the coating device of the present invention.

Fig. 3 is a schematic view of the relationship structure between the coating device and the mold to be coated.

Fig. 4 is a schematic cross-sectional view of the relationship structure between the coating apparatus and the mold to be coated according to the present invention.

Description of the reference numerals

1 spray head 11 nozzle face

12 nozzle 13 aerosol cavity

14 aerosol inlet pipe 15 spray cover of parting agent

16 first limiting surface 2 to be coated die

21 molding surface 22 second limiting surface

3 mold release agent

Detailed Description

The following describes a preferred embodiment of the present invention in detail with reference to the accompanying drawings. It is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; without departing from the scope of the invention, it is intended that the present invention shall not be limited to the above-described embodiments, but that the present invention shall include all modifications, equivalents and alternatives.

Referring to fig. 2, the shape of the forming surface 21 of the mold 2 to be coated is shown to be a convoluted wave structure.

Referring to fig. 1 and 2, and fig. 3 and 4, an embodiment of the present invention is shown. The utility model provides a coating device, which comprises a spray head 1. The head 1 includes: a nozzle face 11, the shape of the nozzle face 11 is matched with the shape of the forming face 21 of the die 2 to be coated; and a nozzle 12, the nozzle 12 being provided on the nozzle surface 11. Accordingly, it can be ensured that the distances between the corresponding projected points of the nozzle face 11 and the molding face 21 are all equal when the head 1 and the die 2 to be coated are arranged facing each other. The coating range of the nozzle 12 can completely cover the entire molding surface 21.

Referring to fig. 4, the spray head 1 further comprises an aerosol cavity 13, and the aerosol cavity 13 is connected with a release agent aerosol inlet pipe 14 and a nozzle 12. The nozzle face 11 forms a spray cap 15 of the aerosol chamber 13. The aerosol cavity 13 is an accommodating space with an inlet and an outlet, and is closed except for the inlet and the outlet to form a chamber. The demoulding agent aerial fog inlet pipe 14 is connected with a source of the demoulding agent 3, the demoulding agent 3 enters the aerial fog cavity 13, the demoulding agent 3 is atomized, the aerial fog cavity 13 is connected with each nozzle 11 through a pipeline, and the demoulding agent 3 can be sprayed on the whole forming surface 21.

The shape of the nozzle 12 is set to be rectangular, square, circular, oval, pentagram, triangular, or crescent according to the fluid property of the release agent 3. Or a combination of these shapes. Accordingly, the spray range of the release agent 3 can be more favorably improved.

Depending on the fluidic properties of the mold release agent 3, the spray nozzles 12 are distributed uniformly over the nozzle surface 11. The uniform distribution may be achieved by arranging the nozzles on the nozzle surface 11 at equal intervals in two perpendicular directions.

It is also possible that the flow property of the mold releasing agent 3, and the shape property of the molding surface 21 are unevenly distributed, dense at the corners and sparse at the flat portions. The shape and the opening area of the nozzle are reasonably arranged, so that the uniform release agent 3 can be coated on the whole molding surface 21.

In order to apply the uniform release agent 3 to the molding surface 21, the opening area of the nozzle needs to be designed. In the region where the nozzles 12 are densely distributed, the opening area can be designed to be smaller in the region (central region) where the flow of the release agent 3 is good and which corresponds to the aerosol cavity 13, and in the region closer to the source of the release agent 3. Conversely, in the area where the nozzle 12 is sparsely distributed, in the area (edge area) corresponding to the aerosol cavity 13 where the flow of the release agent 3 is poor, and in the area farther from the release agent 3 source, the opening area can be designed to be larger. Therefore, the opening areas of the nozzles 12 may be designed to be the same, or the opening areas of the nozzles 12 may be designed to be different. Also, the opening area of the nozzle 12 can be adjusted. The opening area adjusting mechanism of the nozzle 12 may be a sliding baffle, and when the sliding baffle slides, the area covering the nozzle 12 is different, so as to achieve the technical effect of adjusting the actual opening area.

The spray head 1 further comprises a first limiting surface 16, and the die 2 to be coated comprises a second limiting surface 22, so that when the first limiting surface 16 and the second limiting surface 22 abut against each other, a gap is formed between the nozzle surface 11 and the forming surface 21 of the die to be coated. The second limiting surface 22 may be a curved surface or a flat surface, which is a parting surface of the die 2 to be coated, and this limitation can ensure the existence of a gap for storing the ejected release agent 3. This gap can be designed by designing a difference between the height difference between the first regulating surface 16 and the nozzle surface 11 and the depth difference (at the same projection position) between the second regulating surface 22 and the molding surface 21.

The above description is the technical features of the components and the connection relationships of the embodiments of the present invention. Therefore, the utility model discloses theory of operation and the technological effect that can reach are: since the first limiting surface 16 and the second limiting surface 22 are provided and the nozzle surface 11 and the molding surface 21 are identical in shape and can be fitted to each other, the nozzle 1 is placed in the mold 2 to be coated by mechanical transfer or manual transfer, the molding surface 21 of the mold 2 of the same lot can be ensured to be identical to the position of the nozzle 12 every time, and the mold release agent 3 can be repeatedly applied to the complicated mold 2. Further, by designing the gap between the nozzle surface 11 and the molding surface 21, the shape of the nozzle 12, the distribution of the nozzle 12, and the opening area of the nozzle 12, the technical effect of uniformly applying the release agent 3 can be achieved. After the spray head 1 is placed in place, the work of coating the release agent can be quickly completed by only connecting and conducting the release agent source and the air fog cavity 13 (through a switch valve and the like) and controlling the conducting time. All the nozzles 12 are located in the gap between the nozzle face 11 and the molding face 21, and the work of applying the release agent is performed in a semi-closed environment, and besides the possible leakage at the peripheral end of the spray head 1, the waste gas emission is less than that of applying the release agent by a fully open spray gun in the prior art, and the waste gas pollution is reduced. Set up at the tip of the week of shower nozzle 1 and shelter from, shelter from sealing washer parts such as baffle or rubber, can further reduce giving off of waste gas. Moreover, according to the structure, the operation is simple and convenient, the cost is low, the automation and the unmanned coating work can be completely realized, and the contact of toxic and harmful waste gas is reduced. Therefore, the utility model provides a coating device can be adapted to the coating occasion of the release agent in more complicated mould profiled surface, can carry out coating work fast, uniformly, has improved the automation of release agent coating work to reduce the emission of waste gas, reduced operation intensity and control mechanism's complexity, saved human cost and material cost. And, the consistency and accuracy of the product produced with this mold can be improved.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A coating apparatus, comprising a spray head, the spray head comprising:

a nozzle disposed on the nozzle face.

2. The coating apparatus of claim 1, wherein said spray head further comprises an aerosol cavity, said aerosol cavity connecting said release agent aerosol inlet tube and said nozzle.

3. A coating apparatus as in claim 1 or 2, wherein said nozzle is rectangular, square, circular, elliptical, pentagram, triangular, or crescent in shape.

4. A coating apparatus as in claim 1 or 2, wherein the nozzles are evenly distributed over the nozzle face.

5. A coating apparatus as in claim 1 or 2, wherein the opening area of the nozzle is adjustable.

6. The coating apparatus of claim 1, wherein the nozzle further comprises a first limiting surface, and the die to be coated comprises a second limiting surface, such that when the first limiting surface and the second limiting surface abut against each other, a gap is formed between the nozzle surface and the die forming surface to be coated.