KR100727892B1 - Plastic shooting out of carbonization prevention a blackout structure - Google Patents

Abstract

A carbonization preventing shield structure for a plastic injection molded product is provided to prevent an edge of a plastic injection molded product from being carbonized due to concentration of current during plating. A connection ring(12) is integrally coupled to both edges of the rear surface of a plastic injection molded product(10). A shield rod(11) is integrally coupled to the connection ring. The shield rod includes an upper distribution rod(11a) and a lower distribution rod(11b) spaced from an upper surface(10a) and a lower surface(10b) of the plastic injection molded product. The edges of the plastic injection molded product are prevent from being carbonized, by collecting current on the upper and lower distribution rods.

Description

Plastic shooting out of carbonization prevention a blackout structure

1 is a plan view showing the principle that the conventional plastic injection plated.

Figure 2 is a front view showing a phenomenon that the current is agglomerated during plating of the conventional plastic injection molding.

Figure 3 is a front view showing a process of the current is agglomerated during plating of the plastic injection formed shielding rod of the present invention.

Figure 4 is a rear perspective view showing a shielding rod connection structure of the present invention.

 <Description of the symbols for the main parts of the drawings>

10: plastic injection molding 20: rack

30: transportation lift 40: plating tank

50: plated metal materials (nickel, chrome, copper alloy)

11: turn rod 11a: upper dispersion rod 11b: lower dispersion rod

12: link

The present invention relates to a shielding structure for preventing tamping of plastic injections, and more particularly, a shielding rod is integrally formed at both ends of corners of various plastic injection moldings used as exterior parts for automobiles, home appliances, and the like during the plating process. The present invention relates to a tamper resistant shielding structure for plastic injection molding which can minimize product defect rate and maximize productivity at the same time by preventing a phenomenon caused by agglomeration of currents into the corners of the injection molding.

In general, the main purpose of plating is to prevent rust and to make the surface beautiful and elegant. More specifically, to improve hardness, increase wear resistance, and smooth the surface of the injection molding and obtain a chemical and heat resistant surface. The type of the plating is largely divided into several kinds, but the plating of the plastic injection of the present invention is plated by the electroplating method.

The electroplating is a surface treatment method of coating a thin film by reducing and depositing metal ions on the surface of the product using the principle of electrolysis. When a direct current is applied to an aqueous solution or a molten salt of the electrolyte, the electrolyte causes chemical changes to the two electrodes. This is called electrolysis. When electrolysis occurs in an aqueous solution of an electrolyte, cations in the solution move to the cathode and anions move to the cathode.

That is, the principle of electroplating is to connect the negative electrode to the plated object to be plated in the plating solution containing the electrolytic solution, which is an aqueous solution mainly composed of salts of the metal to be plated, and connect the positive electrode to the same or different metal as the metal to be plated. After the direct current is applied, the molten metal in the solution is deposited on the surface of the product and the metal film is coated.

Plating of the plastic injection molding 10 is performed by using the principle of the electroplating. FIG. 1 shows a principle of plating a conventional plastic injection molding, and FIG. 2 shows that current is agglomerated when plating of the conventional plastic injection molding. As a phenomenon, a plating metal material 50, such as nickel, chromium, and phosphorus copper, to be plated on the plating tank 40 containing the electrolytic solution, is filled, where the plating metal material is prepared for each plating tank separately. The plastic injection product 10 to be plated to be plated is immersed in the plating tank by hanging on the rack 20 provided on the plating tank 40. The rack 20 is mounted on the transport lift 30 to be automatically transported, and supplies (-) current to the plastic injection through the rack, and (+) current to the metal plating material such as nickel, chromium, copper phosphorus, etc. As the DC current is supplied by supplying the metal current, the cation, which is the metal ion applied to the metal plating material, is applied to the metal plating material by the electric attraction force, receives electrons from the cathode, and the metal film is coated on the plastic injection material.

At this time, the strength of the DC current applied to the plating is applied to the electrical properties of the voltage 2 ~ 10 (V), the current 100 ~ 1000 (A), the plastic in which the anion flows according to the strength of the electric current as described above As the cation is accepted by the injection, the metal film is coated.

At this time, the current is agglomerated at both ends formed in the plastic injection due to the flow of currents in the anion and the cation. As a result, edges are formed at both ends as in the plastic injection of FIG. If there is a metal coating on the plastic injection molding, the current is agglomerated at the end of the plastic injection molding, so there is no space to avoid, so the cation and anion collide with each other. The phenomenon, that is, carbonization, is abbreviated as "Tom".)

)요홈부분은 피복력이 약해지는 문제점과 (

) 돌출부분은 도금표면에 탐 현상이 발생되는 문제점이 있었다. 또한 크롬도금 시에 순간적으로 전류가 흘렀다 다시 흘러 도금이 되면 도금의 색이 밝지않고 회백색으로 나타나는 문제점이 있었다. 상기와 같은 문제점을 줄이기 위해서 종래에는 도금시에 전류를 약하게 하고 도금공정시간을 늘려서 작업이 이루어져야 했으며, 이로 인하여 생산성 및 경제적인 측면에서 많은 손실이 발생되었다. As such, the shape of the plastic injection molding in the conventional plastic injection molding is

The groove part has a problem of weak covering power.

) The protruding part has a problem that a tom phenomenon occurs in the plating surface. In addition, when chromium plating was instantaneously flowed and flowed again, the plating was not bright and grayed out. In order to reduce the problems as described above, the work had to be made by weakening the current at the time of plating and increasing the plating process time, resulting in a lot of losses in terms of productivity and economics.

Therefore, an object of the present invention is to devise to improve the various problems as described above, the current of the end portion of the plastic injection molding having an angled shape, such as a complex shape or corners during the plating process of the plastic injection Shielding to prevent burning of the edges of plastic injections by integrating a separate shielding rod that can agglomerate current during the plating process of plastic injections in order to solve the problem that the burning phenomenon occurs due to the aggregation. The purpose is to provide a structure.

Another object of the present invention is to configure the shielding rod in the plastic injection molding so as to facilitate installation and removal without affecting the existing work process.

     The present invention relates to a tamper resistant shielding structure (11) of the plastic injection molding 10, and more particularly, the shielding rod (11) at both ends of corners of various plastic injection molding (10) used as exterior parts such as automobiles and home appliances. ) As an integral type, and prevents the phenomenon caused by agglomeration of currents into the corners formed at both ends of the plastic injection molding 10 during the plating process, thereby minimizing product defect rate and maximizing productivity. It relates to a tamper resistant shielding structure of the injection molding (10).

When described in more detail through the accompanying drawings, the configuration of the present invention for achieving the above object are as follows.

3 is a front view illustrating a phenomenon in which current is agglomerated during plating of the plastic injection molding 10 having the shielding rod 11 formed thereon, and the shielding rod is integrally formed at both ends of the plastic injection molding 10 having the corners formed. 11) is formed.

The shielding rod 11 is formed by injecting integrally with the plastic injection molding 10 by the connecting ring 12 to the edge portion of the plastic injection molding 10. Shielding rod (11) formed integrally with the plastic injection (10) is composed of an upper dispersion rod (11a) and a lower dispersion rod (11b), the upper dispersion rod (11a) and the lower dispersion rod (11b), respectively, plastic injection (10) The edges of the upper and lower ends are positioned at regular intervals.

The connecting ring 12 connecting the plastic injection molding 10 and the shielding rod 11 has a plastic injection molding after removing the shielding rod 11 and the connecting ring 12 after plating of the plastic injection molding 10 is completed. 10) and marks on the connecting portion of the connecting ring (12).

Therefore, the connecting ring 12 toward the plastic injection molding 10 is configured to be connected to the back portion A of the plastic injection molding 10 which is not visible from the eyes of the users.

When the shielding rod 11 of the plastic injection molding 10 is integrally formed as described above, the plastic injection molding 10 is plated, and plating is performed by energizing the current of the cathode and the anode to the plastic injection molding 10 and the plating metal material, respectively. As the metal material is deposited on the surface of the plastic injection molding 10 and the metal coating is coated, currents of positive and negative ions are directed toward the end edges of the plastic injection molding via the top surface 10a and the bottom surface 10b of the plastic injection molding 10 as shown in FIG. 3. Will move.

The current of the positive and negative ions moving to the ends via the top surface (10a) and the bottom surface (10b) of the plastic injection molding 10 is over the edge of the plastic injection molding (10) via the connecting ring (12) To the end of the upper dispersing rod (11a) positioned at a predetermined interval on the upper surface (10a) of (10) and the lower dispersing rod (11b) positioned at a predetermined interval on the bottom surface (10b) of the plastic injection product (10). By dispersing and agglomerating to induce a random phenomenon in the shielding rod (11) by preventing the phenomena that occur in the corner portion of the conventional plastic injection molding (10) by forming an angle or a corner portion formed in the plastic injection (10) Can protect.

Figure 4 shows a rear perspective view showing a shielding rod 11 connection structure of the present invention, the connecting ring 12 is formed in the rear (A) portion of the plastic injection molding 10, the shielding rod after plating is completed When the link ring (12) of 11 is flipped to one side, it is easily removed from the plastic injection product 10, and is configured to be easy to install and remove without affecting the existing work process.

As described above, the shielding rod 11 is integrally formed with the plastic injection molding 10 by the connecting ring 12 so as to facilitate installation and removal without affecting the existing work process. It can protect the edge of the injection molding from the tom phenomenon caused by the aggregation of the current at the edge of), and can also apply a fixed voltage by increasing the strength of the current. Accordingly, the process time can be shortened to achieve high productivity while at the same time producing more advanced plating products.

As described above, although the present invention has been described above, it is not necessarily limited thereto, and various modifications may be made without departing from the scope and spirit of the present invention.

     The above-described configuration and the present invention relates to a shielding structure for preventing the injection of plastic injections, and by integrating a shielding rod integrally with the plastic injections, it is possible to agglomerate a separate voltage in the plating process so that defects due to the appearance of the product The quality of the product can be improved by solving the problem that caused the problem. In addition, since the current can be supplied at a fixed voltage of 2 to 10 (V) during plating, the process time can be shortened, thereby improving productivity.

Claims (1)

In plating plastic injection molding, The coupling ring 12 is integrally coupled to both side edges of the rear surface of the plastic injection molding 10, The connecting ring 12 has a shielding rod 11 composed of an upper dispersing rod 11a and a lower dispersing rod 11b positioned at predetermined intervals on the top surface 10a and the bottom surface 10b of the plastic injection product 10, respectively. By combining Shield structure for preventing the plastic injection, characterized in that the edge of the plastic injection molding 10 to prevent burning by dispersing the current to the ends of the upper dispersion rod (11a) and the lower dispersion rod (11b). .

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