KR20160123664A - Apparatus for manufacturing internal parts of vehicles and method for manufacturing the same - Google Patents

Apparatus for manufacturing internal parts of vehicles and method for manufacturing the same Download PDF

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Publication number
KR20160123664A
KR20160123664A KR1020150053997A KR20150053997A KR20160123664A KR 20160123664 A KR20160123664 A KR 20160123664A KR 1020150053997 A KR1020150053997 A KR 1020150053997A KR 20150053997 A KR20150053997 A KR 20150053997A KR 20160123664 A KR20160123664 A KR 20160123664A
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KR
South Korea
Prior art keywords
upper mold
skin material
mold
resin
materials
Prior art date
Application number
KR1020150053997A
Other languages
Korean (ko)
Inventor
진광진
김태안
박대림
Original Assignee
주식회사 동원테크
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Application filed by 주식회사 동원테크 filed Critical 주식회사 동원테크
Priority to KR1020150053997A priority Critical patent/KR20160123664A/en
Publication of KR20160123664A publication Critical patent/KR20160123664A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B29C45/14344—Moulding in or through a hole in the article, e.g. outsert moulding

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Disclosed is a manufacturing apparatus for manufacturing vehicle interior materials having skin layer materials (A) and base materials (B), which are ejected materials. The manufacturing apparatus is to form vehicle interior materials consisting of skin layer materials (A) exposed inside a vehicle and base materials (B) ejected and formed on a rear surface of the skin layer materials. The manufacturing apparatus for manufacturing vehicle interior materials according to the present invention comprises: an upper mold assembly (10) connected to a vacuum molding apparatus to adsorb skin layer materials on a surface thereof, connected to a resin providing apparatus, and having an upper mold (12), which is a fixed mold; a lower mold assembly (20) having a lower mold (22) to mold a cavity for forming base materials with the upper mold (12), and movable with respect to the upper mold assembly (10); and a clamp clamping the skin layer materials between the upper mold and the lower mold, and movable to make the skin layer materials to be adsorbed on the upper mold. By forming a providing path (52) to provide a resin in the upper mold, and forming a cutting blade (14) extended in the lower direction around the providing path (52) as well as forming a concave part (26) in the lower mold (22) corresponding to the cutting blade, a part of the skin layer materials are cut between the molds (12, 22) in order to provide the resin for the surface of the skin layer materials.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automotive interior material molding apparatus capable of cutting a skin material,

The present invention relates to a molding apparatus for an automobile interior material, and more particularly to a molding apparatus for an automobile interior material, which can simultaneously perform vacuum molding of a skin material and injection molding of a base material to be molded as an injection material on its back surface, And more particularly to an automobile interior material molding apparatus which can be used.

Vacuum molding is used as a method for manufacturing an upper trim provided on the upper side of a door trim of an automobile. In addition to such an upper trim, it is mounted inside the automobile and is fixed on the back side of the skin with a skin (part exposed in the film or sheet state and directly inside the automobile) and molded separately using a predetermined mold A vacuum molding is generally used when manufacturing an automobile interior material having a synthetic resin injection molded article (substrate).

Such a vacuum molding can be said to be an injection molding of a base material, and then an adhesive is applied to one side surface to adhere to the skin material. Such a manufacturing method involves many steps such as injection molding of a substrate, vacuum molding of a skin material, and adhesion thereof using an adhesive, and thus, various drawbacks are raised in terms of work environment and productivity.

In addition to the cost increase caused by such a harmful working environment and the delay time between processes, it is also pointed out that the vacuum mold corresponding to one type of skin material must be molded, which is also disadvantageous in terms of substantial facility investment.

Disclosure of the Invention The present invention has been made to solve such conventional disadvantages and it is an object of the present invention to provide an apparatus which can efficiently form a base material of a synthetic resin material to be fixed to the back surface of a skin material and a skin material exposed to a room by using vacuum and injection molding Main purpose.

This can be said to mean that substantially vacuum molding and injection molding can be carried out simultaneously in an injection molding machine. This may also mean that the molding process of the automobile built-in agent composed of the skin material and the base material can be simplified to the minimum, which can be said to mean substantially improving the productivity and reducing the cost.

It is another object of the present invention to provide an apparatus for making automotive interior materials using a single mold of various kinds of skin materials. This means that it is possible to mold products of various designs while minimizing the capital investment cost.

It is another object of the present invention to provide a molding apparatus having an improved working environment that is completely independent of harmful substances.

It is still another object of the present invention to provide a molding apparatus capable of improving the productivity by more easily preparing the skin material by cutting a necessary portion of the skin material in the mold.

The present invention relates to an apparatus for molding an automotive interior material comprising a skin material exposed in an automobile room and a base material injection-molded on the back surface of the skin material; An upper mold assembly connected to the vacuum molding apparatus and capable of absorbing the skin material on a surface thereof and connected to the resin supply apparatus and having an upper mold as a stationary mold; A lower mold assembly having a lower mold for forming a cavity for forming a substrate, such as the upper mold, the lower mold assembly being movable relative to the upper mold assembly; And a clamp that clamps the skin material between the upper mold and the lower mold and is movable so that the skin material can be adsorbed on the upper mold. The lower mold corresponding to the cutting edge is formed with a concave portion, and the resin is molded into the back surface of the skin material. The upper mold is provided with a supply passage for supplying resin, A part of the skin material between the molds is cut and removed for supplying.

The cutting edge is preferably formed such that the inner portion connected to the gate has a lower slope than the outer portion.

And a heater capable of entering and exiting the upper mold and the lower mold and preheating the skin material flammed in the clamp.

According to the present invention as described above, it is understood that the base material of the synthetic resin material to be fixed to the back surface of the skin material and the skin material exposed to the room can be most efficiently formed by vacuum and injection molding. The manufacture of a built-in agent of this type results in an advantage that the skin material and the base material can be integrally manufactured in a substantially one-stop process. That is, by substantially performing vacuum molding and injection molding at the same time, the molding process of the automotive interior decoration agent can be simplified to the minimum, and productivity and cost reduction can be expected based on this.

In the present invention, it is understood that a desired portion of the skin material can be automatically cut and removed when the upper mold and the lower mold are in contact with each other, so that the pre-processing process of the skin material can be minimized. From this point of view, it can be seen that the present invention can further improve the productivity.

According to the present invention, it is possible to omit the process of bonding the base material and the skin material using an adhesive, so that it is expected that the work environment can be improved in addition to the simplification of the process as described above.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view for explaining a process of manufacturing an interior material using the apparatus according to the present invention in order; FIG.
2 is an exemplary sectional view illustrating the relationship between an upper mold and a lower mold of the present invention and a product to be molded.
FIG. 3 is an enlarged view of the main part of FIG. 2, and is an explanatory view showing a process of cutting and removing a skin,

Hereinafter, the present invention will be described in more detail based on the embodiments shown in the drawings. First, as shown in Fig. 1, the upper mold assembly 10, which is a stationary mold, And a lower mold assembly 20 which is a movable mold moving or spaced from the upper mold assembly. The upper mold 12 is installed in the upper mold assembly 10 and a lower mold 22 is provided in the lower mold assembly 20 to contact the upper mold 12 to form a cavity having a desired shape have.

As shown in FIG. 1 (c), the upper mold 12 is connected to the vacuum tank 40 or connected to a vacuum pump to adsorb the skin material on its surface. In a state where the upper mold 12 and the lower mold 22 are engaged, a cavity having a shape to be injection-molded (shape corresponding to the substrate) is formed therebetween. A clamp 22 is provided between the upper mold assembly 10 and the lower mold assembly 20 so that the clamp 22 can move toward the upper mold 12 like a movable mold.

Such a clamp 22 is for catching the skin material. The term " skin material " in the present invention means that the skin material is exposed to the indoor side in the upper trim of the automobile. Such a skin material is, for example, a synthetic resin film, a foil for cushioning, And a sheet type in which the ash is molded integrally. If necessary, a fabric can also be used as such a skin material.

The automobile interior material according to the present invention comprises a skin material made of the above-mentioned material, such as an upper trim, and an injection molded base material integrated with the skin material. As described above, such a substrate is conventionally fixed to a skin material by an adhesive. In the present invention, resin is adhered to the cavity between the upper and lower molds 12 and 22 in a state in which the skin material is adsorbed to the upper mold 12 The skin material and the base material are integrally molded by injection.

2, when resin is injected through the resin supply passage 50 in a state where the upper mold 12 and the lower mold 22 are coupled to each other, The base material B is injection-molded. Here, the base material (B) is molded on the back surface of the skin material (A), which is molded on the side of the lower mold (22) which is the movable mold, not on the side of the upper mold (12). The supply device 50 for supplying the resin is provided on the side of the upper mold 10 which is a stationary mold.

A heater 30 for heating the skin material A is movably provided between the upper mold 12 and the lower mold 22 so as to be able to move outside. Next, the process of forming an actual automobile interior material using such a device will be described in more detail.

It can be said that the state shown in Fig. 1 (a) is a state in which the lower mold 22 moves to one side and is spaced apart from the upper mold 12, and the skin material is clamped to the clamp 22. In this state, the heater 30 moves between the molds 12 and 22 to heat the skin material for a predetermined time, and this state is shown in (b).

Here, heating of the skin material by the heater 30 can be sufficiently understood in the following step (c). After the skin material is heated to a desired degree by the heater 30, the heater 30 retreats and escapes to the outside. As can be seen from (c), the clamp moves to the upper mold 12 side, Is adsorbed on the upper mold (12). That is, the skin material A is adsorbed to the upper mold 12 by a vacuum molding apparatus such as a vacuum tank 40 or the like. The fact that the surface of the upper mold 12 has the attraction force by the vacuum molding apparatus is a well-known and widely used technique, and a detailed description thereof will be omitted.

In the step (c), the skin material (A) is substantially deformed by vacuum adsorption. For this modification, it is necessary to preheat by the heater (30). The preheating of the heater 30 can be more smoothly deformed during vacuum absorption by the vacuum molding apparatus, and it can be said that it is indispensable in the case of a film or sheet material. However, such a preheating process is not required when the skin material is formed into a fabric.

the lower mold assembly 20 moves and the lower mold 22 is engaged with the upper mold 12 while the skin material is being adsorbed to the upper mold 12 in step (c). Then, a resin is injected between the molds 12 and 22, which state is shown in (d). The portion where the resin is supplied in this state is shown in more detail in Fig. The path through which the resin is supplied is divided into a sprue 52 serving as an inlet between the molds 12 and 22 under the pressure provided by the injection apparatus and a resin injected from the sprue 52 passing through the mold 12 A runner 54 moving through the molds 22 and 22 and a gate 56 serving as an inlet for injecting resin into the cavity between the molds 12 and 22.

When the resin is supplied and cooled through the resin supply path 50 as described above, the base material B is substantially formed on the back surface of the skin material A. [ In order to form the base material B as the injection-molded product on the back surface of the skin material A, the resin supply path 50 described above must penetrate a part of the skin material A. [ The formation of the hole in a certain portion of the skin material A in this manner requires not only adding a process of substantially line-cutting the skin material, but also the portion where the hole is formed substantially coincides with the resin supply path 50 It is not easy.

Therefore, in the present invention, when the upper metal mold 12 and the lower metal mold 10 are in contact with each other, the skin A at the portion corresponding to the resin supply path 50 can be cut and removed. As can be seen from the enlarged view in Fig. 3, the passage corresponding to the sprue 52 in the upper mold 12 is formed into a circular shape. That is, it can be seen that the upper mold 12 is provided with the supply passage 52 through which the resin for forming the base material B is supplied.

A cutting edge 14 extending downward is formed around the supply passage 52 in the upper mold 12. The concave portion 26 is formed in the lower mold 22 corresponding to the cutting edge 14 so that when the upper mold 12 and the lower mold 22 are coupled to each other, ). The supply passage 52 to which the resin is supplied has a circular cross section, and the cutting edge 24 is also formed into a cylindrical shape.

It is preferred that the cylindrical cutting edge 24 be formed with an inclination. That is, the cutting edge is formed so that the inner portion 14a in which the gate 54 is formed is formed relatively lower than the outer portion 14b, and the connection between the inner portion and the outer portion is inclined It is preferable to be molded. This is because it is more advantageous in consideration of the directionality of the resin supplied into the cavities of the molds 12 and 22. That is, since the resin must be mainly supplied to the portion where the gate 52 is molded, it is more preferable that the outer cutting edge 14b is made higher so that the resin mainly flows toward the inside.

In the step (c) of FIG. 1, when the process (d) is performed, the lower mold 22 is raised and brought into contact with the fixed upper mold 12. In this contact process, the skin material A is fixed between the dies 12 and 22, and the cutting blade 14 cuts the skin material A and removes it. The scrap Ac of the skin material thus removed is left in the concave portion 26 of the lower mold 22, as shown in Fig. 3 (B).

When the resin is injected in the state where the upper mold 12 and the lower mold 22 are completely engaged, that is, as shown in FIG. 1 (d) or FIG. 3 It is natural that it will flow smoothly. When the resin is injected into the cavity in this state and cooled to some extent after a certain time, the skin material (A) and the substrate (B) will be ejected from the mold apparatus. The scrap (Ac) described above will be discharged to the outside as the product is ejected, and will be cleaned through a trim process.

It can be seen that the automobile interior material such as the completed upper trim can be efficiently produced through vacuum injection molding without using an adhesive. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the present invention as defined by the appended claims. have.

10 ..... Hip Assembly
12 ..... upper mold
20 ..... bottom assembly
22 ..... lower mold
52 ..... Spruce
54 runner
56 ..... gate
A ..... skin material
B .....

Claims (3)

An apparatus for molding an automotive interior material comprising a skin material (A) exposed to the interior of a vehicle and a substrate (B) injection-molded on the back surface of the skin material;
An upper mold assembly 10 connected to the vacuum molding apparatus and capable of absorbing a skin material on a surface thereof and connected to a resin supply device and having an upper mold 12 as a stationary mold;
A lower mold assembly (20) having a lower mold (22) for forming a cavity for forming a substrate, such as the upper mold (12), and movable with respect to the upper mold assembly (10);
And a clamp capable of clamping the skin material between the upper mold and the lower mold and moving the skin material to be adsorbed on the upper mold;
The upper mold is provided with a supply passage 52 for supplying resin and a cutting blade 14 extending downward is formed around the supply passage 52. The lower mold 22 corresponding to the cutting edge Wherein the concave portion (26) is molded and a part of the skin material between the molds (12, 22) is cut and removed to supply the resin to the back surface of the skin material.
The automotive interior molding machine according to claim 1, wherein the cutting edge is formed such that an inner portion connected to the gate has a lower slope than the outer portion.
The automotive interior material molding apparatus according to claim 1, further comprising a heater capable of entering and exiting the upper mold and the lower mold and preheating the skin material flammed in the clamp.









KR1020150053997A 2015-04-16 2015-04-16 Apparatus for manufacturing internal parts of vehicles and method for manufacturing the same KR20160123664A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200016478A (en) * 2018-08-07 2020-02-17 (주)우신시스템 Mold for injection molding of automobile pillars interior material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200016478A (en) * 2018-08-07 2020-02-17 (주)우신시스템 Mold for injection molding of automobile pillars interior material

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