KR101441079B1 - Molding apparatus for automotive lens and manufacturing method for automotive lens - Google Patents

Abstract

The present invention relates to a molding apparatus for an automotive lens and a manufacturing method for an automotive lens using the same and, more specifically, to a molding apparatus for an automotive lens capable of simplifying the configuration of the molding apparatus for manufacturing an automotive lens and preventing the appearance design degradation and contamination of an automotive lens and, to a manufacturing method for an automotive lens using the same. The molding apparatus for an automotive lens according to an embodiment of the present invention comprises: a fixation side mold which includes a first cavity for molding a first molding article; an operation side mold which includes a second cavity for molding a second molding article and moves alone one direction; and a rotation mold which is installed at the operation side mold so that a separation distance from the operation side mold is able to be adjusted and places the first molding article molded in the first cavity in the second cavity by being rotated in one direction, wherein the fixation side mold and the operation side mold inject resins from the inner side directions of the first molding article and the second molding article.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold apparatus for a vehicle lens,

The present invention relates to a mold apparatus for a vehicle lens and a method of manufacturing a vehicle lens using the same. More specifically, the present invention relates to a mold apparatus for manufacturing a vehicle lens, And a method of manufacturing a vehicle lens using the mold apparatus.

Generally, a rear lamp including a brake lamp indicating whether the driver operates the brake pedal, a backup lamp illuminating the rear of the vehicle when the vehicle is backward, and a turn signal lamp indicating the traveling direction of the vehicle is installed in the rear of the vehicle.

The rear lamp is provided with an outer lens that protects the light source and determines the color of the light emitted from the light source to the outside. For example, the outer lens installed in the light source of the brake lamp is red, the outer lens installed in the light source of the backup lamp is transparent, and the outer lens installed in the light source of the turn signal lamp is made of yellow color.

In this way, the outer lens is manufactured through the double injection process so that the outer lens having various colors can be composed of a single outer lens according to the type of the lamp.

In general, the term " double injection " means that two different resins or two different colors of resin are injected in a single mold apparatus. The mold apparatus includes a fixed side mold and a movable side mold, After the molds are brought into close contact with each other, the resin is filled to form a cavity which is a space for molding the molding.

In this case, a plurality of cavities for molding a plurality of molded products are required for the dual injection. For this purpose, a cavity for each molded product having a plurality of fixed-side or movable-side molds is formed, There is a problem of complication.

In addition, when the cavity is filled with resin, the molding is completed by closing the gate through which the resin is discharged into the cavity after the cooling process. In this case, a gate mark having a step is generated in the outer lens.

Such a gate mark generally occurs on the outer surface of the outer lens, and there is a problem that the outer appearance of the outer lens is lowered due to the gate mark and contamination occurs.

Accordingly, there is a need for a method for preventing appearance design and contamination from occurring while simplifying the structure of a mold apparatus for double injection of a vehicular lens.

Open Patent Publication No. 10-2012-0099940 (2012.12.12.)

The object of the present invention is to provide a mold for a vehicle lens which can prevent resin from being injected from the inner side of the molded body and to form a gate mark on the outer surface of the molded body, And a method of manufacturing a vehicle lens using the same.

In addition, by providing a rotary mold capable of rotating between the stationary-side mold and the movable-side mold, it is possible to perform the double injection through the cavities formed in the stationary-side mold and the movable-side mold, And a method for manufacturing a vehicle lens using the same.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a mold apparatus for a vehicle lens, comprising: a stationary-side mold having a first cavity for molding a first molded product; a second cavity for molding the second molded product; And a movable mold which is provided so as to be able to adjust a distance from the movable mold to the movable mold and which is rotated in one direction to place the first molded product molded in the first cavity in the second cavity Wherein the stationary-side mold and the movable-side mold inject resin into the first and second moldings in the inner side direction.

According to an aspect of the present invention, there is provided a method of manufacturing a lens for a vehicle, comprising the steps of: molding a first molded product by injecting a first resin into a first cavity of a fixed mold; Placing the first molded product in a second cavity of the movable mold through a rotary mold provided so as to be able to adjust a distance from the movable mold and rotating in one direction; And injecting a second resin into the first molding to form a second molding on one side of the first molding, wherein the molding of the first molding and the molding of the second molding comprises the steps of: And injecting the first resin and the second resin, respectively, in the inner side direction.

Other specific details of the invention are included in the detailed description and drawings.

According to the mold apparatus for a vehicle lens of the present invention and the method for manufacturing a vehicle lens using the same, one or more of the following effects can be obtained.

The resin is injected from the inner side direction of the molded product constituting the vehicular lens to mold the molded product so that a gate mark is formed on the outer side of the molded product, have.

Further, since the rotary mold capable of adjusting the spacing distance from the movable side mold and rotating can be provided on the movable side mold and the double injection can be easily performed through the cavities formed in the fixed side mold and the movable side mold, There is also an effect that can be simplified.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a mold apparatus of a vehicle lens in a closed state according to an embodiment of the present invention; FIG.
2 is a schematic view showing a mold apparatus of a vehicle lens in a closed state according to an embodiment of the present invention.
Figures 3 and 4 are schematic diagrams illustrating a first molding and a second molding in accordance with an embodiment of the present invention.
5 is a flowchart showing a method of manufacturing a vehicular lens according to an embodiment of the present invention.
6 to 11 are schematic views illustrating a method of manufacturing a vehicular lens according to an embodiment of the present invention.
12 is a schematic view showing a mold apparatus of a vehicle lens of a last molding process according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Thus, in some embodiments, well known process steps, well-known structures, and well-known techniques are not specifically described to avoid an undue interpretation of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is to be understood that the terms comprise and / or comprise are used in a generic sense to refer to the presence or addition of one or more other elements, steps, operations and / or elements other than the stated elements, steps, operations and / It is used not to exclude. And "and / or" include each and any combination of one or more of the mentioned items.

Further, the embodiments described herein will be described with reference to cross-sectional views and / or schematic drawings that are ideal illustrations of the present invention. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are generated according to the manufacturing process. In addition, in the drawings of the present invention, each component may be somewhat enlarged or reduced in view of convenience of explanation. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the present invention will be described with reference to the drawings for explaining a mold apparatus for a vehicle lens and a method for manufacturing a vehicle lens using the same according to embodiments of the present invention.

1 and 2 are schematic views showing a mold apparatus for a vehicle lens according to an embodiment of the present invention, FIG. 3 is a schematic view showing a first molded article according to an embodiment of the present invention, FIG. A schematic representation of a first mold and a second mold according to an example. Fig. 1 shows a state in which each of the dies is in a closed state, that is, in close contact with each other, and Fig. 2 shows an example in which each of the dies is opened, that is, they are separated from each other.

As shown in the figure, a mold apparatus 1 of a vehicle lens according to an embodiment of the present invention may include a fixed-side mold 100, a rotating mold 200, and a movable-side mold 300.

The stationary-side mold 100 has a fixed position and is in close contact with the rotating mold 200 to form a first cavity 110 for molding the first molded product 410. The stationary- The first cavity 110 may be formed with a first injection part 120 into which a first resin, which is a material of the first molding 410, is injected.

In the embodiment of the present invention, the first cavity 110 may be formed such that the first resin is injected from the inner side direction of the first molding 410. This is because the first resin is discharged from the first injection part 120 to the first cavity 110 when the first molding material 410 is formed through the cooling process after the first resin is filled in the first cavity 110 The molding process is completed by closing the gate. In this case, a gate mark having a step at a position corresponding to the gate is generated.

If such a gate mark is generated on the outer surface of the first molded product 410, that is, the surface that is viewed from the outside, dust or the like may accumulate on the low or stepped portion of the outer appearance design and contamination may occur. The first cavity 410 is formed so that the first resin is injected from the inner side of the first cavity 410 and the gate 411 is formed on the inner side of the first cavity 410 as shown in FIG. So that the appearance of the first molded product 410 can be prevented from being reduced or the occurrence of contamination can be prevented in advance.

The rotary mold 200 can be installed so as to adjust the distance from the movable mold 300. The rotary mold 200 can be installed rotatably in a state in which the first molded product 410 molded by the first cavity 110 is attached, .

That is, the rotary mold 200 is positioned such that both sides of the rotary mold 200 face the fixed mold 100 and the movable mold 300, respectively, and the first molded product 410 formed in the first cavity 110 is attached So that the first molded product 410 can be positioned so as to face the movable mold 300. In the embodiment of the present invention, a case in which the rotary mold 200 is rotated on a plane perpendicular to the paper surface will be described by way of example. However, the present invention is not limited to this, Or may be rotated in a horizontal plane.

The movable mold 300 is in close contact with the rotary mold 200 to form a second cavity 310 for molding the second molded product 420 and the movable cavity 300 is provided with a second cavity 310 A second injection part 320 into which a second resin, which is a material of the second molding 420, is injected may be formed.

In this embodiment, the first resin material is used for the first molding material 410 and the second resin material is used for the second molding material 420. However, Since the injection is described by way of example, the case where the first resin and the second resin are resins having different colors or different colors will be described as an example, but the present invention is not limited thereto.

The mold apparatus 1 for a vehicle lens according to the embodiment of the present invention will be described by taking an example of forming an outer lens installed in a vehicle lamp, for example, an outer lens installed in a rear lamp, The first molded product 410 and the second molded product 420 described above are parts of the outer lens and have different colors such as a brake lamp and a back-up lamp, for example.

The movable mold 300 is movable in one direction by a hydraulic device or the like and the distance between the rotating mold 200 and the movable mold 300 through the hydraulic device used for the movable mold 300 Lt; / RTI > Therefore, in the embodiment of the present invention, a separate hydraulic device for the rotary mold 200 is not used, so that the construction can be simplified.

In the embodiment of the present invention, the first molded product 410 and the second molded product 420 formed on one side of the first molded product 410 will be described as an example of a final molded product. The second cavity 310 includes a space for forming the second molding 420 and a first molding 410 attached to the first molding 410, that is, the rotating mold 200 rotating in one direction It may also include a space for positioning.

Accordingly, after the rotary mold 200 is rotated in the state where the first molding 410 is attached to the second cavity 310 as described above, the movable mold 300 is brought into close contact with the stationary mold 100 The rotary mold 200 is also brought into close contact with the movable mold 300 so that the first molded product 410 attached to the rotary mold 200 is positioned at one side of the second cavity 310. [

The second resin for forming the second molded body 420 may be formed as the second cavity 310 from the inner side direction of the second molded body 420 while the first molded body 410 is positioned in the second cavity 310 In order to prevent the generation of gate marks on the outer surface of the second molding 420 similarly to the first molding 410 described above.

At this time, the first molded product 410 is injected from the inner side of the first cavity 110 to be molded, rotated 180 degrees by the rotary mold 200, and placed in the second cavity 310 The second molded product 420 is molded by injecting the second resin from the inner side direction. Therefore, the final molded product including the first molded product 410 and the second molded product 420, as shown in FIG. 4, Since the marks 411 and 421 can be formed, it is possible to prevent appearance design degradation and contamination occurrence in advance.

In the embodiment of the present invention, the stationary mold 100, the rotary mold 200, and the movable mold 300 are closely contacted with each other to form the second cavity 310, 1, when the second resin is injected into the second cavity 310 in a state where the molding 410 is positioned, the first resin may be injected into the first cavity 110 to mold the first molding 410. When the molding of the second molded product 420 is completed at the first mold 410 in the second cavity 310, the fixed mold 100, the rotating mold 200, and the movable mold 300 are separated from each other So that the rotary mold 200 is rotated and the first molding material 410 is placed in the second cavity 310 repeatedly.

As described above, the mold apparatus 1 of the vehicular lens according to the embodiment of the present invention injects resin in a state where the stationary-side mold 100, the rotary mold 200, and the movable-side mold 300 are in close contact with each other The mold is molded and the rotary mold 200 is rotated and the final molded product is taken out in a state where the stationary-side mold 100, the rotary mold 200 and the movable-side mold 300 are separated from each other. Since the hydraulic device used for moving the movable mold 300 is used to adjust the rotation or the spacing distance of the movable mold 300, the structure can be simplified since there is no need to add a separate hydraulic device.

5 is a flowchart showing a method of manufacturing a vehicular lens according to an embodiment of the present invention.

As shown in the figure, in the method for manufacturing a vehicle lens according to an embodiment of the present invention, first, the first cavity (110) and the second cavity The first resin is injected into the first molding 410 to form the first molding 410 (S110).

6, since the stationary-side mold 100, the rotary mold 200, and the movable-side mold 300 are in close contact with each other at the start of manufacture of the vehicle lens for the first time, The rotary mold 200 is closely contacted to form the first cavity 110. At this time, the first resin may be injected into the first cavity 110 from the inner side of the first molded product 410 through the first injection part 120, and the first cavity 110 may be filled with the first resin. And then the gate of the first injection part 120 is closed to complete the molding of the first molded product 410. [

After the molding of the first molding 410, the stationary mold 100, the rotary mold 200 and the movable mold 300 are separated from each other, and the rotary mold 200 is placed in a state in which the first molding 410 is attached (S120).

That is, after the first molding 410 is formed in step S110, the rotary mold 200 moves in the direction separating the fixed mold 100 from the movable mold 300, The rotary mold 200 and the movable mold 300 are separated from each other as shown in FIG. 7, and the first molded product 410 is separated from the rotary mold 200 When the rotary mold 200 is rotated 180 degrees in the arrowed direction in the attached state, the first molded product 410 looks into the movable mold 300 as shown in FIG.

The fixed mold 100, the rotary mold 200 and the movable mold 300 are brought into close contact with each other so that the first molded product 410 is positioned in the second cavity 310 in a state where the rotary mold 200 is rotated (S130).

When the rotary mold 200 moves in the direction in which the movable mold 300 is in close contact with the stationary mold 100 and the rotary mold 200 is in close contact with the movable mold 300, The first mold member 410 attached to the rotary mold 200 is in contact with the first mold member 410 and the second mold member 300. In this case, 310).

The second resin is injected into the second injection part 320 while the first molding material 410 is positioned in the second cavity 310. At the same time, the first resin is injected into the first cavity 110, The first molding member 420 and the first molding member 410 are respectively molded (S140).

10, the second resin is injected into the second cavity 310 in a state where the stationary mold 100, the rotary mold 200, and the movable mold 300 are in close contact with each other as shown in FIG. 9 The second molded product 420 is formed on one side of the first molded product 410 while the first resin is injected into the first cavity 110 to mold the first molded product 410.

When the stationary mold 100, the rotary mold 200 and the movable mold 300 are separated from each other after the second molded product 420 is formed on one side of the first molded product 410, The first molded article 410 and the second molded article 420 are taken out (S150).

10, the movable-side mold 300 moves in a direction separating from the fixed-side mold 100 as shown in FIG. 11, and the final formed product And the molded product is taken out from the second cavity 310.

In step S140, the second resin is injected into the second cavity 310, and the first cavity is injected into the first cavity 310. In this case, 110), the first resin is no longer injected (S160).

8 through 11 according to the quantity of the vehicle lens to be molded. In the final manufacturing process, unlike FIG. 10, the second cavity 310 is formed with the second molding 420, The first resin is not injected into the first cavity 110, and the first resin is injected into the first cavity 110, and then the first mold 100, the rotary mold 200, When the movable mold 300 is separated, the final molded article composed of the first molded product 410 and the second molded product 420 is taken out from the second cavity 310, and the fixed mold 100, The mold 200 and the movable-side mold 300 are brought into close contact with each other.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Fixed side mold
110: first cavity
120:
200: Rotary mold
300: movable side mold
310: second cavity
320:

Claims (12)

A fixed-side mold having a first cavity for molding the first molding;
A movable mold having a second cavity for molding the second molding and moving in one direction; And
And a second mold that is coupled to the movable mold so as to be rotatable or adjustable in spacing distance from the movable mold by the hydraulic device that moves the movable mold in one direction, To the second cavity,
Wherein the stationary-side mold and the movable-
And the resin is injected in the inner side direction of the first molded product and the second molded product. The method according to claim 1,
The first molded product may be a molded product,
Wherein the first resin is injected into the first cavity in a state in which the stationary-side mold, the rotary mold, and the movable-side mold are in close contact with each other. The method according to claim 1,
The rotating die includes:
After the first molding is molded, the first molding is rotated at a predetermined distance from the movable mold moving in one direction in a state where the first molding is attached,
Wherein the stationary-side mold, the rotary mold, and the movable-side mold are in close contact with each other to position the first molded product in the second cavity. The method according to claim 1,
The first molded product may be a molded product,
Wherein the first resin is injected into the first cavity in a state in which the first molded product is placed in the second cavity to be molded. The method according to claim 1,
The second molded product may include:
Wherein the second resin is injected into one side of the first molding located in the second cavity in a state in which the stationary side mold, the rotary mold and the movable side mold are in close contact with each other. 6. The method of claim 5,
A first molding placed in the second cavity and a second molding molded on one side of the first molding,
Wherein the stationary-side mold, the rotary mold, and the movable-side mold are taken out while being separated from each other. Injecting a first resin into a first cavity of the stationary-side mold to mold the first molding;
The movable mold is rotated by the hydraulic device for moving the movable mold in one direction or the movable mold is coupled to the movable mold through the rotary mold which is coupled to the movable mold and rotated in one direction so that the distance between the movable mold and the movable mold can be adjusted, In a second cavity of the cavity; And
And injecting a second resin into the second cavity of the movable mold to mold the second molding on one side of the first molding,
Wherein the molding of the first molding and the molding of the second molding comprises:
And injecting the first resin and the second resin in the inner side direction of the first molded product and the second molded product, respectively. 8. The method of claim 7,
The molding of the first molding may comprise:
A step in which the stationary-side mold, the rotary mold, and the movable-side mold are closely contacted; And
And injecting the first resin into the first cavity. 8. The method of claim 7,
After molding the first molding,
Further comprising the step of separating the fixed-side mold, the rotating mold, and the movable-side mold from each other. 8. The method of claim 7,
The step of positioning the first molding in the second cavity comprises:
Rotating the rotary mold in one direction in a state where the stationary-side mold, the rotary mold, and the movable-side mold are separated from each other; And
Wherein the movable mold, the rotary mold, and the stationary mold are brought into close contact with each other. 8. The method of claim 7,
The molding of the second molding may comprise:
Injecting the second resin into the second cavity; And
And injecting the first resin into the first cavity. 8. The method of claim 7,
After molding the second molding,
Separating the stationary side mold, the rotary mold, and the movable side mold; And
And removing the molded product from the second cavity.

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