KR20110062061A - Method for manufacturing car head-lining - Google Patents

Abstract

PURPOSE: A method for manufacturing a head lining for a vehicle is provided to reduce the manufacturing time and costs by employing a folding guide and a wrapping tool to automate a wrapping process. CONSTITUTION: A method for manufacturing a head lining for a vehicle is as follows. A raw sheet(200) is prepared. The surface material of the raw sheet is attached to a side of a plastic base and an end of the raw sheet is bent. The surface material on the exposed end of the raw sheet is supported with a wrapping tool(120) and the base of the exposed end is heated by a heater(140). The raw sheet is pressed by a folding guide(130) on a support so that only the bent end of the raw sheet is exposed. The heater is removed and the wrapping tool is horizontally transferred to hold the exposed end of the raw sheet. The wrapping tool is vertically transferred to thermally bond the bases on the end of the raw sheet.

Description

Method for manufacturing car headlining {Method for manufacturing car head-lining}

The present invention relates to a vehicle headlining, and more particularly, to a method for manufacturing a vehicle headlining automated the process of wrapping the skin material of the vehicle headlining.

In general, the head-lining that is attached to the interior of the vehicle roof, that is, the ceiling interior material for the vehicle, has a synthetic resin as the base material (base material) so that the insulation and sound insulation of the roof and sound absorbing (absorption) can be provided. It consists of the skin material which forms the base material and the outer surface which were shape | molded and manufactured with).

The general structure of such vehicle headlining is, for example, bonding a polyurethane foam or polyethylene foam on a paper substrate using a hot melt film to form a cushioning layer of polyurethane foam or polyethylene foam. There is one in which a fabric or polyvinyl chloride is bonded to the surface of the cushion layer. As another form, the nonwoven fabric was adhere | attached on the surface of the paper base material using a hot melt film.

The method of adhesively processing the base material and the skin material of the automobile headlining can be largely divided into two types.

The first method is a method of simultaneously forming and adhering the substrate and the skin material. For example, after the substrate is heated in an oven or the like, the heated substrate is molded together with the skin material, and the substrate is molded into the structure of the automobile headlining, and at the same time, the latent heat stored in the substrate is coated on the surface of the skin material. The adhesive is melted to adhere to the surface of the substrate.

According to this first method, after bonding the substrate and the skin material, the cutting work is performed in the shape of the automobile headlining. The cutting work (referred to as 'Trim piercing: TRIM AND PIERCING' work) is to perform the drilling and cutting of the part where the sunroof of the car is formed in addition to cutting the adhesive of the base material and the skin along the outline of the car headlining. It will be included.

In addition, as a second method of manufacturing automobile headlining, there is a method of first forming the substrate by a mold and then attaching the skin material using the latent heat stored in the substrate.

The first method described above has the advantage that the manufacturing process is simple because the base material and the skin material are molded at the same time, but there is a problem that the adhesive structure is exposed as it is in the trim pierced portion of the adhesive molding of the base material and the skin material. In particular, when the sunroof is formed on the headlining of the automobile, such an adhesive structure is directly exposed inside the vehicle body, and thus it is difficult to use it without proper finishing.

Although the method of using a suitable finishing material for the finishing treatment or peeling the substrate and the skin material, and then cutting the substrate and the skin material to different sizes, the method of covering the substrate with a skin material has been proposed, but in process The second method is proposed as a more aggressive way to improve. In other words, this second method has been proposed as a means to solve the problems of the first method pointed out in the manufacture of automotive headlinings in which sunroofs are formed.

In this second method, the headlining of an automobile is first formed of a substrate with a hot mold, trim piercing (including a sunroof) according to the shape of the automobile headlining, and then the skin material is bonded with a cold mold. The skin is cut to an appropriate size and then bent and bonded to wrap the exposed portion of the substrate and the skin with the skin (also called a folder bag). The sunroof portion of the skin material adhered to the substrate for the folder bag is trim pierced to a size suitable for the folder bag, and in this process, cuts may be formed at the corners of the skin material for the soft folder bag.

However, in the second method, since the hot mold and the cold mold must be sequentially processed in order to manufacture the adhesive material of the substrate and the skin material, there is a problem in that the operation is complicated.

As a conventional technology for solving such a problem, the Korean Utility Model Application No. 2001-002155 (filed date: July 16, 2001) discloses the design of the name "vehicle headlining manufacturing apparatus", the sunroof When manufacturing the automobile headlining is formed, the substrate and the skin material are bonded and molded at the same time to reduce the work process, peeling and molding the substrate and the skin material in the sunroof part to enable the folding of the sunroof part. This will be described in detail with reference to FIG. 1.

1 is a view showing a vehicle headlining manufacturing apparatus according to the prior art.

Referring to FIG. 1, the apparatus for manufacturing a vehicle headlining according to the related art includes a lower mold 10 for compressing a surface of a substrate 11 and an upper mold 20 for compressing a surface of a skin material at the time of manufacturing an automobile headlining. In the automobile headlining manufacturing apparatus configured to simultaneously perform molding of the base material 11 of the headlining and adhesion of the skin material 22, the lower mold 10 having the sunroof processing surface of the automobile headlining and the sunroof. The machining surface includes an upper mold 20 having a predetermined distance 30 from the sunroof processing surface of the lower mold 10 to form a predetermined separation space 30 in the sunroof processing surface. In forming and adhering the base material 11 and the skin material 22, the skin material 22 and the base material 11 are separated from the sunroof surface by the space 30 of the sunroof surface. do.

The lower mold 10 and the upper mold 20 connect a vacuum chamber 50 for generating a vacuum suction force to the inside, and connect the sunroof processing surface and the vacuum chamber 50 to the inside of the vacuum chamber 50. By including a plurality of guide conduits 55 for guiding the vacuum suction force to the sunroof surface, the skin material 22 and the base material 11 is the sunroof surface of the lower mold 10 and the upper mold 20 It is attracted to the side to promote the peeling of the skin material 22 and the base material 11 in the sunroof processing surface. Accordingly, the substrate 11 and the skin 22 may be peeled off from the sunroof surface, and the substrate and the skin may be molded and bonded.

However, the apparatus for manufacturing automobile headlining according to the related art is related to the end of the sunroofed surface, and the skin 22 and the substrate 11 are bent so as to bend the skin 22 and press the substrate 11 again. After spaced apart, the skin material 22 must be pressed against the base material 11, which causes a problem in that the manufacturing process is complicated.

On the other hand, the conventional vehicle ceiling interior material is bonded to the first glass fiber mat layer and the second glass fiber mat layer for maintaining the rigidity on both sides of the polyurethane foam layer for the effect of sound insulation or sound absorption, white non-woven fabric on its outer surface The layer is hot melt bonded to form a base layer, and a skin material layer such as cloth, woven fabric or nonwoven fabric is hot melt bonded on the surface of the base layer.

The conventional process of forming a ceiling decoration material for a vehicle is made of a two-step molding process of forming a base material and bonding a skin material thereon, and thus, glass fiber of a glass fiber mat attached to maintain rigidity in the process of forming a base material. Fugitives also had to be bonded using an adhesive between them for adhesion of the substrate thus formed to the skin material.

Accordingly, in the conventional vehicular ceiling interior material, a nonwoven fabric layer is added between the skin material layer and the first glass fiber mat layer, and even if such a nonwoven fabric layer is added, there is no particular improvement in rigid retention or sound absorption, sound insulation, etc. Only thickened, there was a problem such as a lot of production costs (cost increase).

As a prior art for solving the above-described problems of the ceiling decoration for a vehicle, Korean Patent Application No. 2007-0117611 (filed date: November 19, 2007) filed by the same applicant of the present invention discloses a "vehicle ceiling interior material. And a method for producing the same, '' which relates to a manufacturing method of simultaneously molding the base material layer without molding the base material layer and to a ceiling interior material produced thereby. With reference to Figs. 2 and 3, a vehicle interior and the manufacturing method according to the prior art will be described.

2 is an exploded view showing a laminated structure of a vehicular ceiling interior material according to the prior art, and FIG. 2 is a process flowchart of a method for manufacturing a vehicular ceiling interior material according to the prior art.

As shown in Figure 2, the vehicle ceiling interior material according to the prior art, the skin material layer 70, the first glass fiber mat layer 63a, the first adhesive layer 62a, polyurethane foam layer 61, The second adhesive layer 62b, the second glass fiber mat layer 63b, the hot melt film layer 62c, and the nonwoven fabric layer 64 are laminated in this order, and the adhesive of the first adhesive layer 62a is heat-sealed. By passing through the first glass fiber mat layer (63a) to penetrate to the back portion or the middle portion of the skin material layer 60 is bonded configuration.

That is, from above, the first glass fiber mat layer 63a, the first adhesive layer 62a, the polyurethane foam layer 61, the second adhesive layer 62b, the second glass fiber mat layer 63b, the hot melt film layer A base material layer 60 laminated in the order of 62c, and a skin material layer 70 directly stacked on the first glass fiber mat layer 63a of the base material layer 60, wherein the skin material layer 70 ) Is passed on the first glass fiber mat layer 63a by the adhesive of the first adhesive layer 62a penetrated into the skin layer 70 by passing through the first glass fiber mat layer 63a during thermocompression molding. It is a structure which keeps a lamination and adhesive fixation state.

The method for manufacturing a vehicle interior ceiling material according to the prior art, as shown in Figure 3, the material preparation step (S11) for preparing each layer material of the ceiling interior material; From the prepared material, the first glass fiber mat layer 63a, the first adhesive layer 62a, the polyurethane foam layer 61, the second adhesive layer 62b, the second glass fiber mat layer 63b, a hot melt film from above A base layer stacking step (S12) of laminating the base layer 60 material in the order of the layer 62c and the nonwoven layer 64; A sandwich member preparation step (S13) of laminating a skin material layer 70 on the first glass fiber mat layer 63a of the unmolded base material layer 60 and laminating it into a sandwich member; A press molding step (S14) of placing the sandwich member in a mold and pressing molding the mold by a hot press; Trimming step (S15) for trimming the member after the compression molding; And a subsequent assembling step (S16).

Here, the sandwich member is thermocompression-molded to simultaneously mold the substrate layer 60 and the skin material layer 70, and in this simultaneous molding process, the adhesive of the first adhesive layer 62a is thermally fused to form the first glass. The skin material layer 70 is penetrated by the adhesive of the first adhesive layer 62a that penetrates through the fiber mat layer 63a to the back portion or the middle portion of the skin material layer 70, and then penetrates the first glass fiber mat. The laminated and adhesively fixed state on the layer 63a is maintained.

As described above, in order to manufacture a headlining, conventionally, a substrate having a bent end is first prepared, and the outer surface of the substrate is covered with a skin material, and then the skin material is cut to surround the bent end of the substrate and bonded by hand. Was used.

When the headlining is manufactured, there is a problem in that the cut surface of the skin material is not clean, so it is not good in appearance, and because it is manually bonded by hand, the efficiency is very low in terms of time and cost.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a method for manufacturing a vehicle headlining which is automated by a folding guide and a wrapping tool of a skin material wrapping process of a vehicle headlining. will be.

Another technical problem to be achieved by the present invention is to provide a vehicle headlining manufacturing method capable of producing a clean headlining of a uniform quality, compared to the conventional headlining.

As a means for achieving the above technical problem, the vehicle headlining manufacturing method according to the present invention, in the vehicle headlining manufacturing method for wrapping the skin material of the vehicle headlining, a) a skin material on one surface of the base material of the plastic material Preparing a bonded fabric; b) bending the ends of the fabric; c) heating the substrate side of the exposed end with a heating heater while being supported by a wrapping tool surrounding the skin side of the exposed end of the fabric; d) pressing the fabric with a folding guide on a support such that only the bent end of the fabric is exposed; e) separating the heating heater and folding the exposed end of the fabric by horizontally moving the wrapping tool; And f) vertically moving the wrapping tool to compress the ends of the fabric so that the substrates are thermally bonded to each other.

Here, the steps a) to f) is characterized in that it is automatically performed to wrap the skin material of the headlining by the support, the wrapping tool, the folding guide and the heating heater.

Here, in the step d), the fabric is characterized in that the base is disposed on the mounting jig (Jig) supporting the support facing up.

Here, the wrapping tool may have a L-shaped cross section.

Here, the wrapping tool is characterized in that the inner surface of the heater inside the heater by heating in contact with the bent end of the fabric together with the heater.

Here, the step f) is characterized by moving the folding guide horizontally and separated from the fabric, and vertically moving downward.

According to the present invention, the headlining skin wrapping process, which is a conventional manual process, is automated by the folding guide and the wrapping tool, which is advantageous in terms of time and economy.

According to the present invention, the finishing surface is neat compared to the conventional headlining, it is possible to manufacture a headlining of a certain quality.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

As an embodiment of the present invention, there is provided a vehicle headlining manufacturing method which automates the manufacturing process of the skin wrapper of the headlining.

4 is a process flowchart of a method for manufacturing a headlining for a vehicle according to an embodiment of the present invention.

Referring to Figure 4, the headlining manufacturing method for a vehicle according to an embodiment of the present invention, first, prepare a fabric bonded to the skin material on one surface of the base material of the plastic material ( S110 ). For example, the raw material shape | molded simultaneously with the skin material layer can be prepared, without forming a base material layer previously.

Next, the end of the fabric is bent ( S120 ), and then the fabric is placed on the support so that the substrate is facing upwards, and the wrapping tool of the cross section of the exposed end of the fabric is supported by the L-shaped cross section. The substrate side of the exposed end in one state is heated with a heater ( S130 ). In this case, the wrapping tool may be heated by surface contact with the bent end of the fabric together with the heating heater by embedding a heater therein.

Next, the fabric is pressed with a folding guide to expose only the bent ends of the fabric ( S140 ).

Next, remove the heater, and fold the exposed end of the fabric by moving the wrapping tool horizontally ( S150 ).

Next, after the folding guide is moved horizontally and separated from the fabric ( S160 ), the wrapping tool is vertically moved to compress the ends of the fabric so that the substrates are bonded together by heat ( S170 ).

As such, by automating the manufacturing process of the wrapping material of the headlining by the folding guide and the wrapping tool, the finishing surface is neat and compared to the conventional headlining, and the headlining of a certain quality can be manufactured.

5A-5E are diagrams each illustrating a vehicle headlining manufacturing process according to an embodiment of the present invention.

FIG. 5A shows that a fabric 200 having a skin material bonded to one surface of a plastic substrate is prepared first.

5B illustrates bending the end of the fabric 200, and then placing the bent fabric 200 on the support 110 so that the substrate faces upward.

5c presses the fabric 200 with a folding guide 130 so that only the bent end of the fabric 200 is exposed, and the surface of the exposed end of the fabric 200 has a L-shaped cross section. The wrapping tool 120 is in a supported state, and the substrate side of the subsequently exposed end is heated by the heating heater 140. In this case, the wrapping tool 120 may be heated by contacting the bent end of the fabric with the heating heater 140 by embedding a heater therein.

5D shows that the heating heater 140 is removed and the wrapping tool 120 is moved horizontally to fold the exposed end of the fabric 200.

5E shows that the folding guide 130 is horizontally moved to separate the fabric 200, and the wrapping tool 120 is vertically moved downward to compress the ends of the fabric 200 to be bonded to each other by heat. . Therefore, reference numeral A indicates that the fabric has been finished, and thus the headlining skin wrapping process may be automated by the folding guide 130 and the wrapping tool 120.

The description of the present invention is for the purpose of illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. 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 shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

1 is a view showing a vehicle headlining manufacturing apparatus according to the prior art.

2 is an exploded view showing a laminated structure of a vehicle interior ceiling material according to the prior art.

3 is a process flowchart of a method for manufacturing a vehicle interior ceiling material according to the prior art.

4 is a process flowchart of a method for manufacturing a headlining for a vehicle according to an embodiment of the present invention.

5A-5E are diagrams each illustrating a vehicle headlining manufacturing process according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

110: support / sitting jig

120: Wrap Tool

130: folding guide

140: heating heater

200: fabric (substrate + skin material)

Claims (6)

In the vehicle headlining manufacturing method for wrapping the skin material of the vehicle headlining, a) preparing a fabric in which a skin material is bonded to one surface of a plastic material substrate; b) bending the ends of the fabric; c) heating the substrate side of the exposed end with a heating heater while being supported by a wrapping tool surrounding the skin side of the exposed end of the fabric; d) pressing the fabric with a folding guide on a support such that only the bent end of the fabric is exposed; e) separating the heating heater and folding the exposed end of the fabric by horizontally moving the wrapping tool; And f) vertically moving the wrapping tool to compress the ends of the fabric so that the substrates are thermally bonded to each other; Vehicle headlining manufacturing method comprising a. The method of claim 1, Method for manufacturing a headlining for a vehicle, characterized in that performed automatically by the support, the wrapping tool, the folding guide and the heating heater to wrap the skin material of the headlining. The method of claim 1, In step d) the fabric is a vehicle headlining manufacturing method, characterized in that disposed on the mounting jig (Jig) as a support so that the substrate facing upwards. The method of claim 1, The wrapping tool is a vehicle headlining manufacturing method, characterized in that the cross-section of the L-shape. The method of claim 1, The wrapping tool is a vehicle headlining manufacturing method, characterized in that by heating the inside of the heater by contacting the bent end of the distal end with the heating heater. The method of claim 1, In the step f), the folding guide moves horizontally to separate the fabric and then vertically moves downward.

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