KR101648089B1 - Molding apparatus - Google Patents

Abstract

The present invention relates to a molding apparatus. More particularly, the present invention relates to a molding apparatus, which allows a molded product to be attached to a mold during dual injection fixing or to be separated from the mold through a simple structure. The molding apparatus comprises: a first mold for forming a first molded product; a second mold for forming a second molded product; and a rotary mold which forms a first cavity and a second cavity for molding the first molded product and the second molded produce with the first mold and the second mold, respectively, and rotates in one direction so that the first molded product is positioned in the second cavity. In the apparatus, the rotary mold comprises a supporting unit whose position is varied to be in close contact with at least one side of the first molded product by way of a first positioning member formed in the first mold and to be separated from at least one side of the first molded product by way of a second positioning member formed in the second mold.

Description

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mold apparatus, and more particularly, to a mold apparatus in which a molded article is attached to a mold or a molded article is detachable from a mold in a double injection process through a simple structure.

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 dissimilar resins or two resins of different colors are injected in a single mold apparatus. The mold apparatus includes a fixed side mold, a movable side mold and a rotary mold, Molds are fixed to the stationary-side mold and the movable-side mold, respectively, and then filled with resin to form a cavity, which is a space for molding the molded product.

In such a mold apparatus, a primary molding formed by a stationary-side mold and a rotary mold is placed in a cavity formed by the movable-side mold and the rotary mold by rotation of the rotary mold, The final molded product in which the car moldings are integrated is completed. The rotational direction of the rotating mold may be changed depending on the type of the rotating mold, for example, the turntable type, the rotary type, and the like.

At this time, in order to normally complete the final formed product, when the primary molded product is placed in the cavity formed by the movable mold and the rotary mold, the primary molded product must be rotated in a state of being attached to the rotating mold. When the mold is opened, the primary molding must be fixed to the rotary mold. When the secondary molding is molded and then the finished molding is taken out, the first molding must be separated from the rotary mold.

Accordingly, there is a demand for a method of securing the primary molded product to be attached to the rotary mold or releasing the primary molded product from the rotary mold as the double injection process proceeds.

Patent Registration No. 10-1339032 (Announcement of Dec. 20, 2013)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of manufacturing a metal mold by a first positioning member and a second positioning member which are respectively formed at different positions of a first mold and a second mold on a rotary die located between first and second molds And a support unit which is in contact with at least one side of the molded article and is separated from at least one side of the molded article so as to fix the molded article to be attached to the rotary mold when the first and second molds and the rotary mold are respectively closed, The mold apparatus being capable of being detached from the mold apparatus.

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.

In order to achieve the above object, a mold apparatus according to an embodiment of the present invention includes a first mold for forming a first molded product, a second mold for forming a second molded product, And a first cavity and a second cavity for molding the first mold and the second mold, respectively, with the first mold and the second mold, respectively, and the first mold is rotated in one direction to place the first mold in the second cavity Wherein the rotary die is brought into close contact with at least one side of the first molding by a first positioning member formed on the first mold and is rotated by the second positioning member formed on the second mold, And a support unit which is positionally variable so as to be separated from at least one side of the first molding.

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

The above-described mold apparatus of the present invention has one or more of the following effects.

When the first mold and the second mold are respectively closed with the rotary mold, the positions of the support units formed on the rotary mold are changed by the first positioning member and the second positioning member respectively formed in the first mold and the second mold, The mold can be fixed to the rotary mold or separated from the rotary mold without using a separate structure for fixing or separating the rotary mold. Therefore, the structure can be simplified and the cost can be reduced.

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.

1 and 2 are schematic views showing a mold apparatus according to an embodiment of the present invention.
FIGS. 3 and 7 are schematic views illustrating a double injection process of a mold apparatus according to an embodiment of the present invention. FIG.
8 is a perspective view of a support unit according to an embodiment of the present invention.
9 is an exploded perspective view showing a support unit according to an embodiment of the present invention.
10 is a perspective view showing first and second positioning members according to an embodiment of the present invention;
11 is a sectional view showing a first positioning member and a supporting unit according to an embodiment of the present invention;
12 is a sectional view showing a second positioning member and a supporting unit according to an embodiment of the present invention;
13 is a sectional view showing a first positioning member and a supporting unit when closing the first mold and the rotating mold according to the embodiment of the present invention.
14 is a cross-sectional view illustrating a second positioning member and a supporting unit when closing the second mold and the rotating mold according to the 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 according to embodiments of the present invention.

1 and 2 are schematic views illustrating a mold apparatus according to an embodiment of the present invention. FIG. 1 is a state in which each of the molds is in a closed state, that is, in close contact with each other. FIG. 2 is a cross- And shows a separated state.

As shown in the drawing, the mold apparatus 1 according to the embodiment of the present invention may include a first mold 100, a second mold 200, and a rotating mold 300. In the embodiment of the present invention, The mold apparatus 1 according to the embodiment of the present invention can be used for various parts used in a vehicle, for example, . ≪ / RTI >

The first mold 100 is fixedly positioned as a fixed side mold and forms a first cavity 110 for molding the first mold when the mold is closed with the rotary mold 200. In the second mold 200, A movable mold 300 is provided movably in one direction by a hydraulic device or the like, and a second cavity 210 for molding the second mold when mold closing can be formed.

In the embodiment of the present invention, the case where the first mold 100 is a fixed side mold and the second mold 200 is a movable side mold is described as an example, but the present invention is not limited to this and the opposite case is also possible.

The rotary mold 300 is located between the first mold 100 and the second mold 200 and moves together when the second mold 200 moves to move the first mold 100 and the second mold 200 ), Respectively.

The first mold 100 and the second mold 200 are respectively provided with a first injection port 120 through which a first resin is injected as a material of the first molding and a second injection port through which a second resin as a material of the second molding is injected 220 may be formed.

In an embodiment of the present invention, a case where the first molding and the second molding to be formed on one side of the first molding are the final molding will be described as an example, As well as a space for locating the first molded body formed in the first cavity 110, as well as a space for molding the molded body.

The double injection process through the first mold 100, the second mold 200, and the rotary mold 300 will be described with reference to FIGS. 3 through 7. FIG.

3, when the first resin 100 is injected into the first cavity 110 through the first injection port 120 while the first mold 100, the second mold 200, and the rotary mold 300 are closed together, So that the first shaped material 410 is formed.

4, the rotating mold 300 is moved in one direction together with the second mold 200 to form the first mold 100, the second mold 200, and the rotating mold 300 The rotating mold 300 rotates in a state where the first molded product 410 is attached and the first molded product 410 is positioned to face the second mold 200 as shown in FIG.

6, the first mold 100, the second mold 200, and the rotary mold 300 are closed again so that the first molding 410 is inserted into the second cavity 210, The second resin is injected into the second cavity 210 through the second injection port 220 to form the second molding 420 and the first molding material 420 is injected through the first injection hole 120 into the first cavity 110 The first resin is injected to mold the first molding 410.

The first mold 100, the second mold 200 and the rotary mold 300 are opened and the first mold 410 and the second mold 420 are opened as shown in FIG. Is taken out of the second cavity 210. The second molded body 210 is formed of a resin material.

3 to 7 are repeatedly performed according to the quantity of the final molded product 400 to be molded. In the last step, the second resin is injected into the second cavity 210, The first resin is no longer injected into the cavity 110 and the final molded product 400 is extracted and then the double injection process is terminated.

When the first mold 100 and the rotary mold 300 are opened after the first molding 410 is molded in the mold apparatus 1 as described above, the first molded product 410 is transferred to the rotary mold 300 When the first molded product 410 is attached to the rotary mold 300 when the second molded product 420 is not attached or separated, the final molded product 400 can not be normally completed. A structure for fixing the first molded product 410 to be attached to the rotary mold 300 or detachable from the rotary mold 300 is required.

For this, in the embodiment of the present invention, the first positioning member 510 and the second positioning member 520 are provided on the first mold 100 and the second mold 200, respectively, and the rotary mold 300, The first molding member 410 and the second molding member 520 are attached to at least one side of the first molding member 410 by the first positioning member 510 and the second positioning member 520, Or a support unit 600 may be formed which is separated from at least one side of the first molding 410.

At least one support unit 600 may be formed on both sides of the rotary mold 300. When the rotary mold 300 is closed with the first mold 100 and the second mold 200, The first and second moldings 410 and 520 may be displaced and separated from at least one side of the first molding 410 or at least one side of the first molding 410.

In other words, the support unit 600 is formed adjacent to the periphery of the first mold product 410 and is in close contact with at least one side of the first mold product 410 when the first mold 100 and the rotary mold 300 are closed, The first mold member 410 is fixed to the rotary mold 300 and the second mold member 300 and the rotary mold 300 are separated from at least one side of the first mold member 410, The final formed product 400 composed of the first molded product 410 and the second molded product 420 is taken out from the second mold 200 when the rotary mold 200 and the rotary mold 300 are opened.

FIG. 8 is a perspective view showing a support unit according to an embodiment of the present invention, and FIG. 9 is an exploded perspective view showing a support unit according to an embodiment of the present invention.

The support unit 600 according to the embodiment of the present invention includes a sliding member having an insertion groove 611 into which one side of the first positioning member 510 or the second positioning member 520 is inserted A guide member 620 having a rail 621 for guiding the movement of the sliding member 610 and an elastic member 630 provided at one side of the sliding member 620 to provide an elastic force to the sliding member 610, . ≪ / RTI >

One side of the first positioning member 510 or the second positioning member 520 as shown in FIG. 10 may be inserted into the insertion groove 611 of the sliding member 610. In the embodiment of the present invention, One end of the crystal member 510 or the second positioning member 520 is formed to be bent toward the support unit 600 and the bent portion is inserted into the insertion groove 611 of the sliding member 610 The shapes of the first positioning member 510 and the second positioning member 520 may be variously changed depending on the shape of the insertion groove 611. [

10, the first positioning member 510 and the second positioning member 520 have the same shape, but this is only one example for facilitating understanding of the present invention. 7, the first positioning member 510 and the second positioning member 520 are similar in shape but may have different forming positions or forming directions.

The guide member 620 is configured to cover at least a portion of the sliding member 610 such that when the sliding member 610 is inserted into the rail 621 and the sliding member 610 is moved out of the rail 621, And guard members 622 and 623 formed on at least one side of the rail 621. [

The guard members 622 and 623 are formed so as to respectively cover both sides of the sliding member 610. However, the present invention is not limited to this, and the number of the guard members 622 and 623 When the guard members 622 and 623 are formed of two pieces as in the embodiment of the present invention, the guard members 622 and 623 may be formed of at least the first positioning member 510 The first positioning member 510 and the second positioning member 520 may have a width equal to or greater than the width of the first positioning member 510 or the second positioning member 520 so that interference does not occur when the second positioning member 520 is inserted into the insertion groove 611 have.

In this case, the width of the first positioning member 510 or the second positioning member 520 is used in the exemplary embodiment of the present invention, but this is only an example for facilitating understanding of the present invention. Various terms which can indicate the length in the direction perpendicular to the moving direction of the sliding member 610 can be used.

The guard members 622 and 623 can be respectively coupled to the guide member 620 by engaging members 622a and 623a such as screws.

The elastic member 630 is fixed at one side to a fixing member 631 formed at one side of the guide member 620 and is moved in a direction in which the elastic member 630 is compressed by an external force applied to the sliding member 610 The sliding member 610 is returned to its original position by the elastic force.

11, when the first mold 100 and the rotary mold 300 are closed, the first positioning member 510 is moved to the original position by the elastic force of the elastic member 630 The second positioning member 520 is inserted into the insertion groove 611 of the sliding member 610 as shown in Figure 12 when the second mold 200 and the rotary mold 300 are closed, ) To move the sliding member 610 in the direction in which the elastic member 630 is compressed.

11 and 12, the position of the sliding member 610 is variable because the positions where the first positioning member 510 and the second positioning member 520 are formed are shifted from each other with respect to the supporting unit 600 The supporting unit 600 is formed at the same position on both sides of the rotary mold 300 while the second positioning member 520 formed in the second mold 200 is formed in the same position on both sides of the rotary mold 300, 1 relative to the first positioning member 510 formed on the mold 100 so that the second positioning member 520 is inserted into the insertion groove 611 of the sliding member 610 A force is applied to one side of the insertion groove 611 to move the sliding member 610 in a direction in which the elastic member 630 is compressed.

Therefore, when the first resin is injected into the first cavity 110 and the first molded product 410 is molded in the state where the first mold 100 and the rotary mold 300 are closed, the elastic force of the elastic member 630 The sliding member 610 is returned to its original position and fixed to the first mold member 410 so that the first mold member 410 is completely formed. When the rotary mold 300 and the rotary mold 300 are opened, the first molded product 410 remains attached to the rotary mold 300 as shown in FIG.

When the second mold 200 and the rotary mold 300 are closed in a state where the first mold 410 is positioned to face the second mold 200 by rotating the rotary mold 300, The two positioning members 520 apply a force to one side of the insertion groove 611 of the sliding member 610 so that the sliding member 610 is moved in the direction in which the elastic member 630 is compressed, The final molded product 400 composed of the first molded product 410 and the second molded product 420 can be taken out from the second mold 200. [

As described above, in the embodiment of the present invention, the first positioning member 510 and the second positioning member 520, which are respectively formed at different positions of the first mold 100 and the second mold 200, are formed When the first mold 100 and the rotary mold 300 are closed or the second mold 200 and the rotary mold 300 are closed, the position of the support unit 600, that is, the sliding member 610, The first molding 410 can be fixed or separated by a simple structure without using a separate device (for example, a hydraulic device or the like) for fixing the molding 410 to be attached to the rotary mold 300 .

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: first mold
110: first cavity
200: second mold
210: second cavity
300: Rotary mold
400: final molding
410: first molding
420: second molding
510: first positioning member
520: second positioning member
600: support unit
610: Sliding member
620: guide member
630: elastic member

Claims (10)

A first mold for forming a first molding;
A second mold for forming a second molding; And
Forming a first cavity and a second cavity for molding the first mold and the second mold with the first mold and the second mold, respectively, and rotating the first mold and the second mold in the one direction to place the first molding in the second cavity A rotating mold,
The rotating die includes:
Wherein the first molding member is in contact with at least one side of the first molding member by a first positioning member formed on the first mold member and is positionally variable to be separated from at least one side of the first molding member by a second positioning member formed on the second mold member The support unit comprising:
The support unit includes:
A sliding member having an insertion groove into which one side of the first positioning member or the second positioning member is inserted;
A guide member having a rail for guiding movement of the sliding member; And
And an elastic member provided at one side of the sliding member to provide an elastic force to the sliding member. The method according to claim 1,
Wherein the first positioning member and the second positioning member are disposed on the first positioning member,
Wherein the position of the support unit is determined when the first mold and the second mold are respectively closed with the rotary mold. The method according to claim 1,
The support unit includes:
A plurality of rotary molds respectively formed at the same positions on both sides of the rotary mold,
Wherein the first positioning member and the second positioning member are disposed on the first positioning member,
Wherein the mold unit is formed at different positions with respect to the support unit. delete The method according to claim 1,
Wherein the first positioning member comprises:
The position of the sliding member returned to the elastic force is fixed,
Wherein the second positioning member comprises:
And a force is applied to one side of the insertion groove to move the sliding member in a direction in which the elastic member is compressed. The method according to claim 1,
The sliding member includes:
Wherein the first positioning member is in close contact with at least one side of the first molding when the insertion member is inserted into the insertion groove,
And is separated from at least one side of the first molding when the second positioning member is inserted into the insertion groove. The method according to claim 1,
Wherein the first positioning member comprises:
Wherein the first mold and the second mold are inserted into the insertion groove when the mold is closed,
Wherein the second positioning member comprises:
And the mold is inserted into the insertion groove when the second mold and the rotary die are closed. The method according to claim 1,
The guide member
Wherein a fixing member for fixing one side of the elastic member is formed on one side. The method according to claim 1,
And at least one guard member coupled to the guide member so as to cover at least a part of the sliding member inserted into the rail. 10. The method of claim 9,
Wherein the at least one guard member comprises:
A plurality of sliding members which cover both sides of the sliding member,
Wherein the plurality of guard members
And a gap corresponding to a width of the first positioning member and the second positioning member.

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