JP3246227B2 - Manufacturing method of automotive interior materials - Google Patents
Manufacturing method of automotive interior materialsInfo
- Publication number
- JP3246227B2 JP3246227B2 JP23909494A JP23909494A JP3246227B2 JP 3246227 B2 JP3246227 B2 JP 3246227B2 JP 23909494 A JP23909494 A JP 23909494A JP 23909494 A JP23909494 A JP 23909494A JP 3246227 B2 JP3246227 B2 JP 3246227B2
- Authority
- JP
- Japan
- Prior art keywords
- skin
- skin material
- substrate
- molding
- mold
- 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.)
- Expired - Fee Related
Links
Landscapes
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
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 applying a skin material during molding of interior parts for automobiles, and more particularly, to a method for producing interior parts for automobiles in which wrinkles are generated and molding yield is improved during 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 As interior parts for automobiles, those having a surface material made of cloth adhered to the surface are frequently used. As shown in FIGS. 4 (a) and 4 (b), the interior of the automotive interior part such as a molded ceiling is formed by preheating both sides of the base material discharged from the base material supply step 9 in the base material heating step 10. Supply to the molding step 11,
It is set on the forming press 16, while the skin material is supplied to the molding step 11 after preheating the back surface of the skin material by the skin setting 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。[0003] At this time, as shown in FIG.
At the same time as being transported into the forming press, the back surface of the skin material is also clamped by the skin clamp 18 and the back surface is heated to one side and then transported into the forming press. In this state, a method of closing the forming press and performing the forming as shown in FIG. 5B is generally used. As shown in FIG. 5B, the skin material is clamped by the squash or the clamper when the skin material is pulled into the mold during molding (when the molding press is closed), as shown in FIG. Next, 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 the generation of the forming wrinkle as described above can be eliminated.
【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 Japanese Patent Application Laid-Open No. 62-87324.
In the official gazette, when the skin material is mounted on the clamp frame, it is pinched in a free state without any fixing pin, thereby adapting to the mold, preventing the product from wrinkling, and preventing the skin material from breaking. It can be used as a skin material even on fabrics with low elasticity. Also, by providing a tension bar which 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 that a method of preventing wrinkles from occurring. Disclosed. However, in the prior art as described above, although the problem in molding can be solved, since it is necessary to clamp a part other than a molded product, the yield of the skin material is significantly reduced, and the cost is problematic. 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 It is an object of the present invention to examine a supply method for applying tension to a skin material as a measure against skin wrinkles during molding of interior parts for automobiles, and to suppress a decrease in yield by a clamp system. Provided is a method for manufacturing interior materials for automobiles. In other words, in order to remarkably improve the yield of the skin material, which is a problem in the conventional technology, the conventional method of applying a tension to the skin material at the time of molding is abolished and the skin clamp fee is abolished. And a new machining system having 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工程において、固定クラ
ンプされた基材を、加熱後、成形プレスの上型と下型の
間に搬送してセットする工程、基材の幅に対し、型外形
幅まで寸法縮小された表皮材を表皮供給装置によって保
持し、加熱後、該基材上まで搬送する工程、表皮材を基
材に圧着させて両部材を表皮材の幅方向両端部で熱融着
させる工程、および該両部材を成形プレスの上型と下型
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。さらに、前記表皮
供給装置が表皮材を吸着保持す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も達成される。 The purpose of the Means for Solving the Problems], in Cheng Hao you press molding by attaching a skin material to a substrate, a fixed class
After heating the stamped substrate, the upper and lower
Process of cell Tsu preparative and transported between, to the width of the substrate, Katagaikei
A step of holding the skin material reduced in size to the width by a skin supply device , heating and transporting the skin material onto the base material, and pressing the skin material against the base material to attach both members in the width direction of the skin material A step of heat-sealing at both ends , and upper and lower dies of the molding press for both members ;
It is achieved by the method for producing automotive interior material characterized by comprising the step of molding at. Further, the epidermis
Automatic, characterized in that the feeding device sucks and holds the skin material
This is also achieved by a method for manufacturing a car 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、従来の表皮
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。本発明では両部材におい
て、表皮材周端部を基材に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。[Effect] The skin is held by the skin supply device, and both sides set in the press die are conveyed onto the preheated base material. The conventional skin clamp is eliminated, so that the skin clamp is attached to the main body. It can be used and yield is improved. Both members odor in the present invention
Since the peripheral edge of the skin material is press-bonded to the base material and thermally fused, 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 a base material mainly composed of a thermoplastic resin is heated in advance to a melting point temperature or higher, and before the mold is closed, both are heat-sealed to close the mold (forming). At the time) a tension is applied to the skin material 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。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings of embodiments. Example 1 In this example, an example of a method for simultaneously bonding a substrate and a skin will be described. FIG. 1 is a view showing a state in which a base material 1 and a skin material 2 are transported to a press die of the present invention.
FIG. 1A shows that 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 step of preheating by the skin preheating heater 6 is shown.
FIG. 1 (b) shows that after heating both sides of the base material 1 clamped with a squash etc., it is conveyed into the upper die 4 and the lower die 5 of the forming press, and at the same time, the outer dimensions of the base material forming die are reduced to the same size. A step of transporting the rear surface of the skin material into the forming press after heating the one side by holding the intended skin material 2 by suction on the skin suction transport device 3 will be described.
【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を表皮材の両端部に形成する。このよ
うに、両者を熱融着させた後成形を実施する。The attraction force of the skin adsorbing device needs to be at least free from falling of the skin during heating of the skin material, or occurrence of irregularities on the design surface of the skin. Here, one side heated skin material,
The heat-welded portions 8 are formed at both ends of the skin material as shown in FIG. In this way, the molding is performed after the two are thermally fused.
【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。[0010] Table 1 shows an example of the heat fusion conditions in this embodiment. (Material) Base material: thermoplastic (polyethylene containing glass fiber) base material Skin material: knit (polyethylene terephthalate), polyurethane and polyethylene cloth (set width) As shown in FIG. The skin material width E is defined as the outer shape width of the mold, and D is determined at both ends thereof as the heat welding width.
【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 the present embodiment, a composite sheet material of glass fiber-containing polyethylene (800 g /
m 2 ) is preheated and softened to 150 to 180 ° C. and adhered as a substrate 1. As a thermoplastic resin other than this embodiment, polyvinyl chloride, polystyrene, polypropylene, polyamide, polycarbonate, polyurethane, or the like may be used. In addition, as a skin material (fabric material), in this embodiment, polyethylene terephthalate, polyurethane, and polyethylene-based fabric are used.
(Elongation at break 1.3 times in length and 1.4 times in width), which is placed. Next, the upper mold 4 is closed, and the ends of both members are pressed. In this case, the heat welding pressure is set to 0.1 to 0.3.
kg / cm 2 at a constant pressure, heat-sealed part (peripheral end)
Both members are clamped at a width of 50 mm, and then both members are formed 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。In this pressure bonding, the upper mold 4 is lowered, and first, the upper mold 4 is rapidly lowered until the upper mold 4 comes into contact with the skin material 2. Next, it is lowered at a low speed of about 10 to 30 mm / sec until it is in a pressure-bonded state, and is molded.
At this time, as the upper mold is lowered, the outer peripheral portion of the skin material 2 is fixed at the crimped portion in the same manner as the fixed clamp, and the unsealed portion of the skin material 2 is freely pulled and moved until it follows the mold, and the product In addition, it is possible to prevent wrinkles from being generated, and at the same time to prevent the skin material from being broken. Further, at the time of this processing, the generation of wrinkles of the tensioned product may be partially prevented by using a tension bar or the like hanging down on the outer peripheral portion of the upper die first.
【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 composite material (800 g / m 2 ) of glass fiber-containing polyethylene was used as the base material, and polyethylene terephthalate, polyurethane and polyethylene-based fabric were used as the skin material, but between the base material and the skin material. The present invention can be applied to a product configuration in which an adhesive such as hot melt is added, similarly to the present 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, the conventionally required skin clamp allowance (for example, 50 mm × 2 on one side) can be eliminated, and the skin material yield is greatly improved from the conventional level (90 to 9).
5%). In addition, the appearance of the product has been improved, and cost and quality can be improved.
【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 view showing a method of transporting a base material and a skin material according to the present invention, (a) a method of preheating the 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 view 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 view 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,
2A is an overall layout diagram, and FIG. 2B is a layout diagram of an AA cross section in FIG.
【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 section of FIG.
It is a figure which shows the state before (a) upper mold descent, (b) the closed state of the upper mold, and (c) generation | occurrence | production of a wrinkle.
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 device 4 ... Upper mold 5 ... Lower mold 6 ... Skin preheating heater 7 ... Blow 8 ... Heat welding part 9 ... Substrate supply process 10 ... Substrate heating process 11 ... Molding Step 12: Skin setting zone 13: Skin preheating 14: Molded article cooling and unloading 15 ... Heater 16 ... Molding press 17 ... Molded article 18 ... Skin clamp 19 ... Base material clamp 20 ... In-mold pulling of the skin material 21 ... Molding wrinkle
フロントページの続き (56)参考文献 特開 平５−42587（ＪＰ，Ａ) 特開 平４−336226（ＪＰ，Ａ) 特開 昭56−99670（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 51/08 - 51/42 B29C 43/02 - 43/52 Continuation of front page (56) References JP-A-5-42587 (JP, A) JP-A-4-336226 (JP, A) JP-A-56-99670 (JP, A) (58) Fields investigated (Int) .Cl. 7 , DB name) B29C 51/08-51/42 B29C 43/02-43/52
Claims (2)
工程において、固定クランプされた基材を、加熱後、成
形プレスの上型と下型の間に搬送してセットする工程、
基材の幅に対し、型外形幅まで寸法縮小された表皮材を
表皮供給装置によって保持し、加熱後、該基材上まで搬
送する工程、表皮材を基材に圧着させて両部材を表皮材
の幅方向両端部で熱融着させる工程、および該両部材を
成形プレスの上型と下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。 You press molding by attaching a skin material to 1. A substrate
In Cheng Hao, fixed clamped substrate, after heating, formed
Process of cell Tsu preparative is transported between the upper and lower molds form the press,
Use a skin material that is reduced in size to the outer shape width of the mold with respect to the width of the base material.
Holds by epidermal feeder, after heating, is transported to on the substrate step by crimping the skin material to the substrate both members skin material
Heat- sealing at both ends in the width direction , and
A method for manufacturing an interior material for an automobile, comprising a step of forming an upper mold and a lower mold using a molding press .
材を吸着保持することを特徴とする自動車用内装材の製Of interior materials for automobiles characterized by adsorbing and holding materials
造方法。Construction method.
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 JPH08103918A (en) | 1996-04-23 |
| JP3246227B2 true 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) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5334304B2 (en) * | 2009-03-03 | 2013-11-06 | 河西工業株式会社 | Manufacturing method of laminated molded product |
| JP4944938B2 (en) * | 2009-11-20 | 2012-06-06 | 関東自動車工業株式会社 | Vacuum forming apparatus and vacuum forming method |
| JP6604322B2 (en) * | 2016-12-28 | 2019-11-13 | トヨタ自動車株式会社 | Method for producing fiber-reinforced resin molded body |
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08103918A (en) | 1996-04-23 |
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