KR200364128Y1 - jig sturcture for UV coating of injection milding manufactures - Google Patents

Abstract

The present invention is a UV coating jig body used to maximize the safety and coating efficiency of the injection molding when the UV coating on the surface of the injection molding, such as a mobile phone cover, the inner wall of the injection molding not the surface to be coated Jig for injection molding UV coating that can fundamentally block the penetration of UV coating material that impedes coating adhesion during vacuum deposition and EMI coating process, as well as to minimize the damage of injection molding when detaching between injection molding and jig body It relates to the sieve structure.

That is, the injection molding (A) such as a mobile phone cover is provided with a jig body 10 having a predetermined shape and form so that it can be easily seated and coupled, and under the jig body 10 there is a moving line installed between production processes Therefore, the urethane and UV coating jig body of the injection molding having an injection molding having a support rod 11 for transporting the injection molding to the next vacuum deposition and EMI coating process after the completion of coating is completed. (10) It is provided with the airtight pad 100 of the soft (silicon, rubber | gum, urethane, etc.) synthetic resin material which has elasticity, elasticity, and a reliable sealing property in close contact with the upper surface.

Description

Jig sturcture for UV coating of injection milding manufactures}

The present invention is a UV coating jig body used to maximize the safety and coating efficiency of the injection molding when the UV coating on the surface of the injection molding, such as a mobile phone cover, the inner wall of the injection molding not the surface to be coated In the post-process EMI coating process, it prevents the penetration of UV coating material that impedes the adhesion of coating in the EMI coating process, and also minimizes the damage of injection molding caused by desorption between injection molding and jig. It is about.

Usually, the surface of the plastic injection molding such as a mobile phone cover is usually subjected to UV coating treatment (coating method for curing the coating film by ultraviolet energy) in consideration of product material safety and commerciality, and for the UV coating treatment It is essential to coat / settle the injection molding, as well as a coating jig body that performs a function of covering the inner wall portion of the injection molding which is not required or prohibited.

On the other hand, injection molding products such as cell phone covers are not only required to have a UV coating on the surface thereof, but also to protect internal devices from the electronic circuits (electromagnetic waves, etc.) and to prevent influences from outside through the post-process on the bottom inner wall. Conductive paint treatment (EMI coating) is also essential.

That is, in the case of injection moldings used in electronic devices such as mobile phones, after urethane and UV coating treatment on the surface using urethane and UV coating jig body, the other side, that is, the inner wall surface of the injection molding must be EMI coated. .

However, since the urethane and UV coating jig body has a structure that does not maintain perfect airtightness between the jig body and the injection molding, a part of the UV coating material penetrates into the gap between the jig body covering the injection molding during the urethane and UV coating. As a result of the EMI coating process, the adhesion of the coating film is deteriorated, thereby causing serious quality defects, and in the severe case, there are significant problems such as treatment / disposal.

In other words, EMI coating is a means to prevent harmful electromagnetic waves or static electricity generated from electronic circuits, etc. to protect users from circuit failures and radio waves inside the equipment, and to apply spray coating or vacuum evaporation coating. It is to deposit and apply a coating film of a constant thickness, it is essential to maintain the predetermined adhesive force required for coating film deposition in both methods.

However, as described above, when the UV coating layer is in place due to penetration in a portion of the coating film (EMI coating) deposition site, there is a problem such as peeling of the coating film later due to the weakening of the coating film adhesion.

This problem is not only impossible to deposit the EMI coating layer due to the UV coating layer that is penetrated by the vacuum deposition method among the EMI coating methods, but also peels off in a short time even if the housework and coating are successful. Cause.

In addition, the UV coating jig has a high risk of product damage due to the contact between the jig body and the friction when mounting and detachment between the injection molding to be seated on the jig body was also not negligible.

That is, when joining / sitting the injection moldings to be coated on the UV coating jig body, the close contact / contacting of each other is made as well as the mutual jaw locking action. Problems such as breakage and cracking often occur.

Accordingly, the present invention has been devised to eliminate the above-mentioned conventional problems. When the coating jig body used for the surface UV coating of the injection molding is fitted to the inner wall of the bottom surface of the injection molding, the airtightness is maintained. The present invention has been completed with a focus on providing a jig body which prevents the penetration and prevents damage to the injection molding by minimizing friction, impact, etc. that occur during mutual detachment.

1 is a front view of the jig body applied to the present invention

2 is a cross-sectional view of the subject innovation

3 is an exploded view of FIG. 2

Figure 4 is a side cross-sectional view of Figure 2

5 is another exemplary view of the present invention

6 is an exemplary view illustrating a jig body to which the present invention is applied.

* Explanation of symbols in the main part of the drawing

A: Injection molding 10: Jig body

11: support rod 100: airtight pad

111: binding hole 112: coupling hole

13: glue

In the present invention to achieve the above technical problem is described in more detail based on the accompanying drawings.

An injection molding (A) such as a mobile phone cover is provided with a jig body 10 having a predetermined shape and shape so that it can be easily seated and coupled, and under the jig body 10, UV along a moving line installed between production processes. In the injection molding UV coating jig body provided with a support rod 11 for moving to the inside of the coating treatment device and after the coating is completed to transfer the sand molding (A) to the next EMI coating treatment process, the predetermined form It has excellent elasticity and elasticity (cushion force) on the upper surface of the jig body 10, and has an airtight pad 100 of a synthetic resin material (silicone, rubber, etc.) that has excellent adhesion when in close contact with the injection molding (A). will be.

On the other hand, during the injection molding according to the jig body 10 may be integrally molded through a special injection method (double injection method, etc.) that the jig body 10 and the airtight pad 100 are formed together,

In addition, one or more binding ports 111 may be formed on the bottom surface of the airtight pad 100, and each of the corresponding jig bodies 10 may be perforated by coupling holes 112 to each other.

In addition, the hermetic pad 100 can be firmly attached to the upper surface of the jig body 10 with an adhesive 13.

As such, when the airtight pad 100 is formed on the UV coating jig 10 used for UV coating on the upper surface of the injection molded article A such as a mobile phone, the injection molded article A ) When the jig body 10 is secured to the jig (10) in the absence of a fine gap is completely in contact with the UV coating material because it does not generate any gaps can completely block the UV coating material penetration.

In addition, the hermetic pad 100 is a simple yet very innovative method, such as to ensure the product safety by performing a cushioning role when the injection molding (A) seating combined.

As described above, the injection molded article (A) UV coating jig body has no penetration of the coating material on the inner wall of the bottom surface of the injection molded article (A) during UV coating of the injection molded article (A), such as a mobile phone cover. The perfect coating film deposition efficiency can be obtained during the EMI coating process, which is a post-process, and a significant quality improvement effect can be expected, and further, product damage that may be accompanied when the injection molding (A) is seated and coupled to the jig body or removed. It is guaranteed as far as it is expected, and it is a great design.

Claims (4)

Jig body for injection molding UV coating, characterized in that the airtight pad 100 of the soft synthetic resin material excellent in elasticity and elasticity is provided on the upper surface of the jig body 10 of the conventional predetermined type to which the injection molding (A) is seated and bonded. rescue. The jig structure for injection molding UV coating according to claim 1, wherein the airtight pad 100 is formed by co-molding with the jig body 10 when the jig body 10 is formed. The method of claim 1, wherein the one or more fasteners 111 are formed on the bottom surface of the airtight pad 100 provided on the top surface of the jig body 10 and inserted into the coupling hole 112 of the jig body 10. Jig body structure for injection molding yub coating, characterized in that (100) is to be fixed to the upper surface of the jig body 112. The jig structure for injection molding yuv coating of claim 1, wherein the airtight pad (100) is attached to the top surface of the jig body (10) using an adhesive (13).