JPH08103918A - Manufacture of car interior finish material - Google Patents
Manufacture of car interior finish materialInfo
- Publication number
- JPH08103918A JPH08103918A JP6239094A JP23909494A JPH08103918A JP H08103918 A JPH08103918 A JP H08103918A JP 6239094 A JP6239094 A JP 6239094A JP 23909494 A JP23909494 A JP 23909494A JP H08103918 A JPH08103918 A JP H08103918A
- Authority
- JP
- Japan
- Prior art keywords
- skin
- skin material
- base material
- molding
- press
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車用内装部品成形
時の表皮材の被着方法に関し、特にその成形時のシワの
発生および歩留りの向上をはかる自動車用内装材の製造
方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for depositing a skin material when molding an automobile interior part, and more particularly to a method for producing an automobile interior material which is capable of generating wrinkles and improving yield during the molding.
【０００２】[0002]
【従来の技術】自動車用内装部品は、表面に布製の表皮
材を貼付したものが多用されている。成形天井の様な自
動車用内装部品成形工程は、図４（ａ）および（ｂ）に
示すように基材供給工程９から搬出された基材を、基材
加熱工程１０で両面を予熱して成形工程１１に供給し、
成形プレス１６にセットし、一方表皮材は、表皮セット
ゾーン１２および表皮予熱１３によって表皮材裏面を予
熱後成形工程１１に供給する工程からなる。2. Description of the Related Art Interior parts for automobiles are often used in which a surface material made of cloth is attached. In the molding process of automobile interior parts such as a molded ceiling, the base material carried out from the base material supply step 9 is preheated on both sides in the base material heating step 10 as shown in FIGS. 4 (a) and 4 (b). Supplied to the molding process 11,
It is set in the molding press 16, while the skin material comprises a step of supplying the back surface of the skin material to the post-heating forming step 11 by the skin set zone 12 and the skin preheating 13.
【０００３】その際、図５（ａ）に示すように、基材は
基材クランプ１９でクランプされた状態で両面加熱後、
成形プレス内に搬送すると同時に、表皮材においても表
皮クランプ１８でクランプされた状態で裏面を片面加熱
後成形プレス内へ搬送される。この状態において成形プ
レスを閉じ、図５（ｂ）のように成形を実施する工法が
一般的に用いられている。このように、表皮材を瓜或は
クランパーによってクランプするのは、図５（ｂ）に示
すごとく、成形時（成形プレス閉じ時）において、表皮
材に型内への引張り込み２０が発生する際に、表皮材を
クランプすることにより、この引張り込み２０の作用
を、表皮材自身にかかるテンションとして、図５（ｃ）
のような成形ジワの発生を解消することができるためで
ある。At this time, as shown in FIG. 5 (a), after the base material is clamped by the base material clamp 19, both sides are heated,
At the same time as being conveyed into the molding press, the back surface of the skin material is also clamped by the skin clamp 18 and after being heated on one side, it is conveyed into the molding press. In this state, a molding method is generally used in which the molding press is closed and molding is performed as shown in FIG. As described above, the skin material is clamped by the gourd or the clamper as shown in FIG. 5B when the skin material is pulled into the mold 20 during molding (when the molding press is closed). In addition, by clamping the skin material, the action of the pull-in 20 is used as a tension applied to the skin material itself, as shown in FIG.
This is because it is possible to eliminate the occurrence of such molding wrinkles.
【０００４】また、同出願人は特開昭６２−８７３２４
号公報において、表皮材がクランプ枠に挟んで取付られ
る際に、部分的に固定ピンがなくフリーな状態で挟むこ
とによって、型に順応させ製品のシワ発生を防止し、か
つ表皮材の破れも防止することができ、伸縮性の小さい
布地でも表皮材として使用できる。また、上型外周部に
局部的な張出しであるテンション棒を設けることによ
り、部分的に表皮材を先に引張り、型に副わせて表皮材
を折曲げるので、シワの発生を防止する方法を開示し
た。しかし、上述の様な従来技術では、成形上の不具合
は解消できるものの、成形品となる以外の部位をクラン
プする必要があるため、表皮材の歩留りを著しく低下さ
せることになりコスト的に問題であった。Further, the applicant of the present invention has disclosed in Japanese Patent Laid-Open No. 62-87324.
In the publication, when the skin material is sandwiched and attached to the clamp frame, by partially sandwiching it with no fixing pin, it conforms to the mold and prevents the product from wrinkling, and also prevents the skin material from breaking. It can be prevented and can be used as a skin material even with a small stretchable fabric. Also, by providing a tension rod that is a local overhang on the outer periphery of the upper mold, the skin material is partially pulled first, and the skin material is bent along with the mold, so a method for preventing the occurrence of wrinkles is provided. Disclosed. However, in the prior art as described above, although defects in molding can be solved, it is necessary to clamp a part other than a molded product, so that the yield of the skin material is significantly reduced and there is a cost problem. there were.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、自動
車用内装部品成形時の表皮シワ対策として、表皮材にテ
ンションをかけるための供給方法を検討し、クランプ方
式による歩留り低下を抑止する自動車用内装材の製造方
法を提供する。すなわち、従来技術での問題点である表
皮材歩留りを画期的に向上させることを目的として、従
来の成形時、表皮材にテンションをかけるための手段と
しての表皮クランプ代を廃止し、それに代り、同機能を
もつ新加工システムを提供するものである。SUMMARY OF THE INVENTION An object of the present invention is to investigate a supply method for applying tension to a skin material as a measure against skin wrinkles when molding interior parts for automobiles, and to suppress a decrease in yield due to a clamp system. Provided is a method of manufacturing an interior material for a vehicle. That is, for the purpose of remarkably improving the yield of the skin material, which is a problem in the conventional technology, the skin clamp allowance as a means for applying tension to the skin material at the time of conventional molding was abolished and replaced with it. , Provides a new processing system with the same function.
【０００６】[0006]
【課題を解決するための手段】上記の目的は、基材に表
皮材を貼付してプレス成形するに工程において、予熱し
た基材をプレス金型にセットする工程、表皮供給装置に
よって表皮を保持し、予熱後、該基材上まで搬送する工
程、表皮を基材に圧着させて両部材の端部を熱融着させ
る工程、および該両部材をプレス金型にて成形する工程
からなることを特徴とする自動車用内装材の製造方法に
よって達成される。[Means for Solving the Problems] The above-mentioned object is to set a preheated base material in a press die in a step of pasting a skin material on a base material and press-molding it, and holding the skin by a skin supply device. Then, after preheating, it comprises a step of conveying onto the base material, a step of press-bonding the skin to the base material to heat-bond the ends of both members, and a step of molding the both members with a press die. And a method for manufacturing an automobile interior material.
【０００７】[0007]
【作用】表皮を表皮供給装置で保持して、プレス金型に
セットした両面を予熱した基材上に搬送し、従来のクラ
ンプをなくしたことにより表皮クランプ部を本体部に使
用でき歩留りが向上する。本発明では両部材の周端部を
圧着して熱融着させているので、成形時の表皮引き込み
を完全に防止することが可能となる。すなわち、熱可塑
性樹脂を主成分とする基材と同材質のフォーム層を有す
る表皮材を、予め融点温度以上に加熱させ型閉じ前に、
両者を熱融着させることにより、型閉時（成形時）表皮
材にテンションをかけ成形シワを解消するものである。[Operation] The skin is held by the skin supply device, and both sides set in the press die are conveyed onto the preheated base material, and the conventional clamp is eliminated, so that the skin clamp part can be used for the main body part and the yield is improved. To do. In the present invention, since the peripheral end portions of both members are pressure-bonded and heat-sealed, it is possible to completely prevent the skin from being pulled in during molding. That is, a skin material having a foam layer of the same material as the base material mainly containing a thermoplastic resin, before heating the melting point temperature or higher, before closing the mold,
By heat-sealing both of them, tension is applied to the skin material when the mold is closed (during molding) to eliminate molding wrinkles.
【０００８】[0008]
【実施例】以下本発明について、実施例の図を参照して
詳述する。本実施例では、基材成形表皮同時接着工法の
一例について説明する。図１は本発明のプレス金型への
基材１および表皮材２を搬送した状態を示す図である。
図１（ａ）は表皮供給装置である表皮吸着搬送装置３に
よって、表皮材２をブロー７の吸引力で吸着保持して、
表皮予熱ヒーター６により予熱する工程を示している。
図１（ｂ）は瓜等でクランプされた基材１を両面加熱
後、成形プレスの上型４と下型５の内に搬送すると同時
に、基材成形型外形寸法を同サイズまでサイズダウンを
図った表皮材２を、表皮吸着搬送装置３に吸着保持する
ことによって、表皮材裏面を片側加熱後成形プレス内へ
搬送する工程を示す。The present invention will be described in detail below with reference to the drawings of the embodiments. In this embodiment, an example of the base material molding skin simultaneous bonding method will be described. FIG. 1 is a view showing a state in which a base material 1 and a skin material 2 are conveyed to a press die of the present invention.
In FIG. 1A, the skin material 2 is sucked and held by the suction force of the blow 7 by the skin suction / conveyance device 3 which is a skin supply device.
The process of preheating with the skin preheating heater 6 is shown.
Fig. 1 (b) shows that after the base material 1 clamped with a gourd or the like is heated on both sides, it is conveyed into the upper die 4 and the lower die 5 of the molding press, and at the same time, the outer dimensions of the base material molding die are reduced to the same size. A step of transporting the intended skin material 2 into the forming press after heating the one side of the back surface of the skin material by adsorbing and holding the skin material 2 on the skin adsorbing and conveying device 3 is shown.
【０００９】この表皮吸着装置の吸引力は、少なくとも
表皮材加熱時の表皮落下、或は表皮意匠面の凹凸の発生
がないことが必要である。ここで片面加熱済表皮材を、
両面加熱剤基材の表面に圧着させることにより、図２の
ごとく熱溶着部８を両端部に形成する。このように、両
者を熱融着させた後成形を実施する。It is necessary that the suction force of the skin adsorption device is such that at least the skin does not drop when the skin material is heated, or no unevenness is generated on the design surface of the skin. Here, the one-side heated skin material,
By press-bonding to the surface of the double-sided heating agent base material, the heat-welded portions 8 are formed at both ends as shown in FIG. In this way, the two are heat-sealed and then molded.
【００１０】本実施例における熱融着条件の一例を下記
の表１に示す。 （素材） 基材：熱可塑性（ガラス繊維入りポリエチレ
ン系）基材 表皮材：ニット（ポリエチレンテレフタレート系）とポ
リウレタンとポリエチレンの布地 （設定幅）図３に示すように、基材幅Ｃに対し、表皮材
幅Ｅを型外形幅とし、その両端部に熱溶着幅としてＤを
決める。Table 1 below shows an example of heat fusion conditions in this embodiment. (Material) Base material: thermoplastic (polyethylene containing glass fiber) base material Skin material: knit (polyethylene terephthalate) and polyurethane and polyethylene cloth (set width) As shown in FIG. The skin material width E is defined as the die outer shape width, and D is determined as the heat welding width at both ends thereof.
【００１１】[0011]
【表１】 [Table 1]
【００１２】すなわち、本実施例では、下型５の上にガ
ラス繊維入りポリエチレンの複合シート材（８００ｇ／
ｍ2 ）を１５０〜１８０℃に予熱軟化させたものを基材
１として接着させる。本実施例以外の熱可塑性樹脂とし
てポリ塩化ビニル、ポリスチレン、ポリプロピレン、ポ
リアミド、ポリカーボネート、ポリウレタン等であって
もよい。その上に、表皮材（布地材）として、本実施例
ではポリエチレンテレフタレートとポリウレタンおよび
ポリエチレン系の布地であるが、これは普通の織物１５
（破断伸度が縦１．３倍、横１．４倍もの）であっても
よく、これを載置する。次いで上型４を閉じ両部材の端
部を圧着する。この場合、熱溶着圧力を０．１〜０．３
kg／cm2 の一定圧力として、熱融着部（周端部）１０〜
５０ｍｍ幅にて両部材をクランプ状態し、その後両部材
を所定の形状に成形する。That is, in this embodiment, a composite sheet material of glass fiber-containing polyethylene (800 g /
m 2) an adhering those is preheated softened 150 to 180 ° C. as the substrate 1. Polyvinyl chloride, polystyrene, polypropylene, polyamide, polycarbonate, polyurethane or the like may be used as the thermoplastic resin other than that in this embodiment. In addition, as the skin material (fabric material), polyethylene terephthalate, polyurethane, and polyethylene-based cloth are used in the present embodiment.
The breaking elongation may be 1.3 times the length and 1.4 times the width, and this is placed. Next, the upper mold 4 is closed and the ends of both members are pressure-bonded. In this case, the heat welding pressure should be 0.1 to 0.3.
a constant pressure of kg / cm 2, thermal fusion bonding portion (peripheral edge) 10
Both members are clamped in a width of 50 mm, and then both members are molded into a predetermined shape.
【００１３】この圧着においては、上型４を下降させて
実施するが、まず上型４が表皮材２に接するレベルまで
は、上型４を急速に下降させる。次いで圧着状態にまで
１０〜３０mm／ｓｅｃ程度の低速で下降させ成形する。
この時上型が下降とともに、表皮材２は圧着部で固定ク
ランプと同様に外周部が固定され、未圧着部分の表皮材
２は、型に副うところまで、自由に引張られて動き、製
品にシワが発生することを防止し、同時に表皮材の破れ
も防止できる。また、この加工時に上型外周部に垂下し
ているテンション棒等によって部分的に布地を先に、引
張り製品のシワの発生を防止してもよい。This pressure bonding is performed by lowering the upper mold 4, but first, the upper mold 4 is rapidly lowered to a level at which the upper mold 4 contacts the skin material 2. Then, it is lowered to a pressure-bonded state at a low speed of about 10 to 30 mm / sec for molding.
At this time, as the upper mold descends, the outer peripheral portion of the skin material 2 is fixed at the crimping portion in the same manner as the fixed clamp, and the skin material 2 in the non-crimped portion is freely pulled and moves to a position subordinate to the die, It is possible to prevent wrinkles from occurring on the skin and at the same time prevent the skin material from breaking. In addition, the wrinkles of the pulled product may be partially prevented by the tension rod or the like hanging down from the outer peripheral portion of the upper mold at the time of this processing, with the cloth partially.
【００１４】なお本実施例では、基材としてガラス繊維
入りポリエチレンの複合材（８００ｇ／ｍ2 ）、表皮材
としてポリエチレンテレフタレートとポリウレタンおよ
びポリエチレン系の布地を用いたが、基材と表皮材間に
ホットメルト等接着剤を入れた製品構成でも本実施例と
同様に本発明の適用は可能である。In this embodiment, a polyethylene composite material containing glass fiber (800 g / m 2 ) was used as the base material, and polyethylene terephthalate, polyurethane, and a polyethylene-based cloth were used as the skin material, but between the base material and the skin material. The present invention can be applied to a product structure including an adhesive such as hot melt as in this embodiment.
【００１５】[0015]
【発明の効果】本発明によって、従来必要であった表皮
クランプ代（例えば片側５０mm×２）を廃止でき表皮材
歩留りとして、従来のレベルより大幅に向上（９０〜９
５％程度）することができた。また、製品の外観仕上が
りも向上し、コストおよび品質の改善が可能となった。According to the present invention, it is possible to eliminate the conventionally required skin clamping amount (for example, 50 mm × 2 on one side), and the skin material yield is greatly improved from the conventional level (90 to 9).
5%). In addition, the appearance and finish of the product have been improved, making it possible to improve cost and quality.
【図１】本発明に係る基材および表皮材の搬送方法を示
し、（ａ）表皮材の予熱方法、（ｂ）プレス金型にセッ
トした状態を示す図である。FIG. 1 is a diagram showing a method of transporting a base material and a skin material according to the present invention, (a) a method of preheating a skin material, and (b) a state of being set in a press die.
【図２】本発明に係る熱溶着部を示す図である。FIG. 2 is a diagram showing a heat-welded portion according to the present invention.
【図３】本発明に係る基材と表皮材の大きさを示す図で
ある。FIG. 3 is a diagram showing the sizes of a base material and a skin material according to the present invention.
【図４】従来の自動車用内装材の製造工程を示し、
（ａ）全体配置図、（ｂ）（ａ）図のＡＡ断面の配置図
である。FIG. 4 shows a manufacturing process of a conventional automobile interior material,
FIG. 3A is an overall layout diagram, and FIGS. 2B and 2A are layout diagrams of AA cross section.
【図５】従来の方法を図４（ａ）のＢＢ断面で示し、
（ａ）上型降下前の状態、（ｂ）上型の閉じた状態、お
よび（ｃ）成形シワの発生状況を示す図である。FIG. 5 shows a conventional method in a BB cross section of FIG.
It is a figure which shows the state before (a) upper mold fall, (b) upper mold closed state, and (c) forming wrinkles.
１…基材 ２…表皮材 ３…表皮吸着搬送装置 ４…上型 ５…下型 ６…表皮予熱ヒーター ７…ブロー ８…熱溶着部 ９…基材供給工程 １０…基材加熱工程 １１…成形工程 １２…表皮セットゾーン １３…表皮予熱 １４…成形品冷却搬出 １５…ヒーター １６…成形プレス １７…成形品 １８…表皮クランプ １９…基材クランプ ２０…表皮材の型内引張り込み ２１…成形シワ DESCRIPTION OF SYMBOLS 1 ... Base material 2 ... Skin material 3 ... Skin adsorption | suction conveyance apparatus 4 ... Upper mold 5 ... Lower mold 6 ... Skin preheating heater 7 ... Blow 8 ... Thermal welding part 9 ... Base material supply process 10 ... Base material heating process 11 ... Molding Process 12 ... Skin setting zone 13 ... Skin preheating 14 ... Molded product cooling carry-out 15 ... Heater 16 ... Molding press 17 ... Molded product 18 ... Skin clamp 19 ... Base material clamp 20 ... Skin material in-mold pull 21 ... Mold wrinkle
Claims (1)
に工程において、予熱した基材をプレス金型にセットす
る工程、表皮供給装置によって表皮を保持し、予熱後、
該基材上まで搬送する工程、表皮を基材に圧着させて両
部材の端部を熱融着させる工程、および該両部材をプレ
ス金型にて成形する工程からなることを特徴とする自動
車用内装材の製造方法。1. A step of attaching a skin material to a base material and press-molding, a step of setting a preheated base material in a press die, holding the skin by a skin supply device, and preheating,
An automobile characterized by comprising a step of transporting onto the base material, a step of pressing the skin onto the base material to heat-bond the ends of both members, and a step of molding the both members with a press die. For manufacturing interior materials for automobiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23909494A JP3246227B2 (en) | 1994-10-03 | 1994-10-03 | Manufacturing method of automotive interior materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23909494A JP3246227B2 (en) | 1994-10-03 | 1994-10-03 | Manufacturing method of automotive interior materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08103918A true JPH08103918A (en) | 1996-04-23 |
| JP3246227B2 JP3246227B2 (en) | 2002-01-15 |
Family
ID=17039728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23909494A Expired - Fee Related JP3246227B2 (en) | 1994-10-03 | 1994-10-03 | Manufacturing method of automotive interior materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3246227B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010201758A (en) * | 2009-03-03 | 2010-09-16 | Kasai Kogyo Co Ltd | Method of manufacturing laminated molded article |
| JP2011104940A (en) * | 2009-11-20 | 2011-06-02 | Kanto Auto Works Ltd | Vacuum forming apparatus and vacuum forming method |
| JP2018103552A (en) * | 2016-12-28 | 2018-07-05 | トヨタ自動車株式会社 | Method for producing fiber-reinforced resin molded article |
| CN111673972A (en) * | 2020-07-07 | 2020-09-18 | 安徽鲲鹏装备模具制造有限公司 | Automatic feeding device of nail frame type hot-press forming machine |
-
1994
- 1994-10-03 JP JP23909494A patent/JP3246227B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010201758A (en) * | 2009-03-03 | 2010-09-16 | Kasai Kogyo Co Ltd | Method of manufacturing laminated molded article |
| JP2011104940A (en) * | 2009-11-20 | 2011-06-02 | Kanto Auto Works Ltd | Vacuum forming apparatus and vacuum forming method |
| JP2018103552A (en) * | 2016-12-28 | 2018-07-05 | トヨタ自動車株式会社 | Method for producing fiber-reinforced resin molded article |
| CN111673972A (en) * | 2020-07-07 | 2020-09-18 | 安徽鲲鹏装备模具制造有限公司 | Automatic feeding device of nail frame type hot-press forming machine |
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| JP3246227B2 (en) | 2002-01-15 |
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