JPS6331742A - Manufacture of decorative molding for automobile - Google Patents
Manufacture of decorative molding for automobileInfo
- Publication number
- JPS6331742A JPS6331742A JP61176123A JP17612386A JPS6331742A JP S6331742 A JPS6331742 A JP S6331742A JP 61176123 A JP61176123 A JP 61176123A JP 17612386 A JP17612386 A JP 17612386A JP S6331742 A JPS6331742 A JP S6331742A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- thick
- thin
- boundary
- cut
- 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
- 238000000465 moulding Methods 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 239000012811 non-conductive material Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 abstract description 5
- 229920001296 polysiloxane Polymers 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000006260 foam Substances 0.000 abstract description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical group [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- 239000000284 extract Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000003779 heat-resistant material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 235000019399 azodicarbonamide Nutrition 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- AIKVCUNQWYTVTO-UHFFFAOYSA-N nicardipine hydrochloride Chemical compound Cl.COC(=O)C1=C(C)NC(C)=C(C(=O)OCCN(C)CC=2C=CC=CC=2)C1C1=CC=CC([N+]([O-])=O)=C1 AIKVCUNQWYTVTO-UHFFFAOYSA-N 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は高周波加熱法を利用した自動車用装飾モールの
製造方法ｌ二関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for manufacturing decorative moldings for automobiles using high frequency heating.
従来の技術
従来、上記装飾モールの製造方法として、特開昭５８−
１２７２９号公報ζ二は、発泡性樹脂で成るモール体の
外表面をシリコンモールド内で高周波加熱して無発泡の
スキン層を形成する方法が開示されている。更砿；特公
昭５８−３８４１号公報には予じめ押出ａ！ｌ二よって
押出成形された樹脂を前記シリコンモールドの形状と同
一の形状に打抜いて高周波加熱する方法が開示されてい
る。2. Description of the Related Art Conventionally, as a manufacturing method for the above-mentioned decorative molding, Japanese Patent Application Laid-open No. 1986-
Publication No. 12729 ζ2 discloses a method of forming a non-foamed skin layer by high-frequency heating the outer surface of a molded body made of a foamable resin within a silicone mold. Sarashin; Japanese Patent Publication No. 58-3841 describes extrusion a! Accordingly, a method is disclosed in which the extruded resin is punched into the same shape as the silicone mold and subjected to high frequency heating.
発明が解決しようとする問題点
しかしながらこのような従来の自動車用装飾モ−ルの製
造方法、特に押出機Ｃ；よって押出成形された樹脂を利
用し、且つ装飾モールに厚肉部と薄肉部とを区画形成す
るとともに該厚肉部の表面に文字、図形等を表示する異
色部を設定した装飾モールを製造するに際して、高周波
成形装置内において、加熱溶融時に薄肉部から厚肉部へ
樹脂が流れる現象が発生するという問題点がある。上記
した樹脂の流れに伴って装飾モールの成形不良、もしく
は前記異色部における文字、図形のゆがみ、にじみが生
じて外観を損う難点がある。Problems to be Solved by the Invention However, the conventional method for manufacturing decorative moldings for automobiles, especially the extruder C; When manufacturing a decorative molding that has a uniquely colored part that forms sections and displays letters, figures, etc. on the surface of the thick part, resin flows from the thin part to the thick part during heating and melting in a high frequency molding device. There is a problem in that a phenomenon occurs. The flow of the resin described above causes defects in the molding of the decorative molding, or distortions and smearing of letters and figures in the different color areas, which impairs the appearance.
そこで本発明はこのような従来の自動車装飾モールの製
造方法、特に厚肉部と薄肉部を区画形成して、厚肉部の
表面に異色部を設けた装飾モールを製造する際の前記間
地点を解消して、成形不良及びゆがみの発生しない方法
を提供するものである。Therefore, the present invention provides a conventional method for manufacturing a decorative molding for an automobile, particularly a method for manufacturing a decorative molding in which a thick wall portion and a thin wall portion are formed into sections and a different color portion is provided on the surface of the thick wall portion. The purpose of the present invention is to provide a method that eliminates the above problems and does not cause molding defects or distortion.
問題点を解決するための手段
表面上に文字・図形等を表示する異色部を形成したシー
トの厚肉部と薄肉部との境界部分に所定寸法以下の間隔
を保持する切除部を形成した後、耐熱性を有し、且つ非
導電体で成る下型及び熱伝導性の大きい金属で成る上型
内に充填し、該上下金型内で前記シートに高周波加熱処
理を施して溶融成形する方法を提供する。Means to Solve the Problem After forming a cutout part that maintains a distance of less than a predetermined dimension at the boundary between a thick part and a thin part of a sheet on which a unique color part for displaying characters, figures, etc. is formed on the surface. A method of filling a lower mold made of a heat-resistant and non-conductive material and an upper mold made of a highly thermally conductive metal, and subjecting the sheet to high-frequency heating treatment in the upper and lower molds to melt-form it. I will provide a.
作 用
高周波加熱時ｆ二、前記厚肉部と薄肉部との境界部分に
形成した切、外部によって、樹脂材料の流れ現象が防止
されて、製鎖モールに成形不良もしくはゆがみが発生す
ることが防止される。Operation During high frequency heating f2, the cut formed at the boundary between the thick part and the thin part prevents the resin material from flowing, thereby preventing molding defects or distortions from occurring in the chain molding. Prevented.
実施例
以下図面を参照して本発明Ｌ：係る自動車用装飾モール
の製造方法の一実施例を説明する。第１図。EXAMPLE Hereinafter, an embodiment of the present invention L: a method for manufacturing a decorative molding for an automobile will be described with reference to the drawings. Figure 1.
第２図によシ全体的に示したシート１は、塩化ビニール
、エチレンビニルアセテート等で成る合成樹脂にアゾジ
カルボンアミド等の発泡材を混合したものを予じめ押出
機によって押出成形し、所定の形状１ニカントしたもの
である。上記シート１は厚肉部２と薄肉部３とに区画形
成されていて、厚肉部２の表面上Ｃ）ま文字２図形等を
表示する異色部４が設けられている。この異色部４は予
じめ別途に異色の樹脂もしくは、カラー彩色した樹脂を
用いて作成しておいて、前記シート１の厚肉部２上にｍ
着固定されるものである。The sheet 1 shown in its entirety in FIG. 2 is made by extruding a mixture of a synthetic resin such as vinyl chloride, ethylene vinyl acetate, etc. and a foaming material such as azodicarbonamide using an extruder in advance. The shape is 1 nicant. The sheet 1 is divided into a thick part 2 and a thin part 3, and on the surface of the thick part 2, a unique color part 4 is provided for displaying letters, figures, etc. This different color portion 4 is created in advance using a different color resin or a colored resin, and is placed on the thick portion 2 of the sheet 1.
It is fixed in place.
前記厚内部２と薄肉部３との境界部分には予じめ設定し
た所定寸法以下の切除部５が形成されていて、橋絡部Ｂ
にて上記厚肉部２と薄肉部３とが連結される。尚薄肉部
３上にはストライブ状の模様３ａ、３ａが形成されてい
る。A cutout portion 5 having a predetermined size or less is formed at the boundary between the thick inner portion 2 and the thin portion 3, and a bridging portion B is formed.
The thick portion 2 and thin portion 3 are connected to each other. Furthermore, striped patterns 3a, 3a are formed on the thin wall portion 3.
第３図は高周波成形装置７の概要図であって下型８及び
この下型に組み付けられる上型９と、下型８の下面に設
（すられた電極板１０及び上型９の上面に設けられた電
極板１１と、両電極板１０゜１１に高周波電流を印加す
る電源１２とを主体ζ二構成されている。前配下型８は
耐熱性を有し、且つ非導電体で成る素材、例えばシリコ
ンモールド等が用いられ、該下型８には予じめ設定した
所定の形状を有する凹部１３が形成されている。又前記
上型９は熱伝導性の大きい金属、例えばアルミニウム等
で構成されている。FIG. 3 is a schematic diagram of the high-frequency molding apparatus 7, which includes a lower mold 8, an upper mold 9 assembled to the lower mold, and an electrode plate 10 installed on the lower surface of the lower mold 8 (smooth electrode plate 10 and an upper mold 9 on the upper surface of the upper mold 9). The main body consists of an electrode plate 11 and a power source 12 that applies a high frequency current to both electrode plates 10 and 11.The front subordinate mold 8 is made of a heat-resistant and non-conductive material. For example, a silicon mold or the like is used, and the lower mold 8 is formed with a recess 13 having a predetermined shape.The upper mold 9 is made of a metal with high thermal conductivity, such as aluminum. It is configured.
下型８の凹部１３内へ、第１図■二示したシート１を充
填して上型９を組み付け、電極板１０．１１をセツティ
ングしたならば電源１２を起動して両電極板１０ 、１
１ Ｃ高周波電流を所定時間印加する。すると下型８と
上型９間に充填された前記シート１が約１００〜２００
℃で発泡し、且つ浴融状態となる。この時前記切除部５
は発泡エアを抜くとともに樹脂材料が薄肉部３から厚肉
部２へ流れることを防止する作用がある。After filling the recess 13 of the lower mold 8 with the sheet 1 shown in FIG. 1
A 1 C high frequency current is applied for a predetermined period of time. Then, the number of sheets 1 filled between the lower mold 8 and the upper mold 9 is about 100 to 200.
It foams at ℃ and becomes a bath melt state. At this time, the cut section 5
has the effect of removing foaming air and preventing the resin material from flowing from the thin wall portion 3 to the thick wall portion 2.
高周波成形装置７によシ溶融したシート１は冷却固化し
て第４図第５図４二示す装飾モール１４として完成する
っこの時前記切除部５は樹脂の流れによって消滅し、溝
状部５ａとして残存している。The sheet 1 melted by the high-frequency molding device 7 is cooled and solidified to complete the decorative molding 14 shown in FIGS. remains as.
上記した如く、厚肉部２と薄肉部３との境界部分Ｃ形成
した切除部５は、高周波加熱処理の初期段階！二発生す
るエアを逃がすとともに溶融時に樹脂が薄肉部３から厚
肉部２へ流れることを防止する作用を有している。As mentioned above, the cutout portion 5 formed at the boundary C between the thick portion 2 and the thin portion 3 is in the initial stage of high-frequency heating treatment! Second, it has the function of letting generated air escape and preventing the resin from flowing from the thin wall portion 3 to the thick wall portion 2 during melting.
発明の詳細
な説明した如く、本発明によれば押出機によって押出成
形さ、れな発泡性樹脂を主体とする均一の厚さを有する
シートに厚肉部と薄肉部とを区画形成するととも５二、
前記厚肉部の表面上に文字・図形等を表示する異色部を
形成した装飾モールの製造方法において、前記厚肉部と
薄肉部との境界部分に所定寸法以下の間隔を保持する切
除部を形成した後、耐熱性を有し、且つ非導電体で成る
下型及び熱伝導性の大きい金属で成る上型内ｇ二充填し
、該上下金型内で前記シートに高周波加熱処理を施して
溶融成形したので、以下（：記す作用効果をもたらす。As described in detail, according to the present invention, a sheet having a uniform thickness which is formed by extrusion molding using an extruder and mainly made of a foamable resin is divided into a thick part and a thin part. two,
In the method for manufacturing a decorative molding in which a uniquely colored part for displaying characters, figures, etc. is formed on the surface of the thick part, a cutout part is provided at the boundary between the thick part and the thin part to maintain an interval of not more than a predetermined dimension. After the sheet is formed, a lower mold made of a heat-resistant and non-conductive material and an upper mold made of a highly thermally conductive metal are filled, and the sheet is subjected to high-frequency heating treatment in the upper and lower molds. Since it is melt-molded, it brings about the effects described below.
即ちシートを溶融成形する際に発生する発泡エアは前記
切除部から逃げるとともに、解融時の薄肉部から厚肉部
への樹脂の元れが前記切除部によって防止されるので、
得られた装飾モールに成形不良もしくは異色部における
文字・図形のゆがみ、にじみが発生することがなくなシ
、外観を高める効果をもたらす。That is, the foaming air generated when the sheet is melt-molded escapes from the cutout, and the cutout prevents the resin from flowing from the thin wall portion to the thick wall portion during melting.
The obtained decorative molding is free from molding defects, distortion of characters and figures in different color areas, and bleeding, and has the effect of enhancing the appearance.
第１図は本発明６二係る自動車用装飾モールの製造方法
の一例を示す平面図、第２図は第１図のｎ−ｎｔｓ断面
図、′ｓ３図は本発明を実施する際Ｃ二相いる高周波成
形装置の概要図、第４図は得られた装飾モール例を示す
平面図、第５図は第４図のＶ−Ｖ線断面図である。
１・・・シート、２・・・厚肉部、３・・・薄肉部、４
・・・異色部、５・・・切除部、６・・・橋絡部、７・
・・高周波成形装置、８・・・下型、９・・・上型、１
０．１１・・・電極板、１２・・・電源、１３・・・凹
部。
外２名
第３図
第４図
第５図Fig. 1 is a plan view showing an example of the method for manufacturing a decorative molding for an automobile according to the present invention, Fig. 2 is an n-nts cross-sectional view of Fig. 1, and Fig. 's3 is a C two-phase FIG. 4 is a plan view showing an example of the obtained decorative molding, and FIG. 5 is a sectional view taken along the line V-V in FIG. 4. 1... Sheet, 2... Thick wall part, 3... Thin wall part, 4
... Distinct color part, 5... Excision part, 6... Bridging part, 7.
...High frequency molding device, 8...Lower mold, 9...Upper mold, 1
0.11... Electrode plate, 12... Power supply, 13... Recessed part. 2 people Figure 3 Figure 4 Figure 5
Claims (1)
とする均一の厚さを有するシートに厚肉部と薄肉部とを
区画形成するとともに、前記厚肉部の表面上に文字・図
形等を表示する異色部を形成した装蝕モールの製造方法
において、前記厚肉部と薄肉部との境界部分に所定寸法
以下の間隔を保持する切除部を形成した後、耐熱性を有
し、且つ非導電体で成る下型及び熱伝導性の大きい金属
で成る上型内に充填し、該上下金型内で前記シートに高
周波加熱処理を施して溶融成形したことを特徴とする自
動車用装飾モールの製造方法。(1) A sheet with a uniform thickness mainly made of a foamable resin extruded by an extruder is formed into a thick part and a thin part, and characters are printed on the surface of the thick part. In a method for manufacturing an ornamental molding in which a uniquely colored portion displaying a figure or the like is formed, a cutout portion is formed at the boundary between the thick wall portion and the thin wall portion to maintain an interval of a predetermined dimension or less, and then a heat resistant , and filled in a lower mold made of a non-conductive material and an upper mold made of a highly thermally conductive metal, and melt-molded by subjecting the sheet to high-frequency heating treatment in the upper and lower molds. A method of manufacturing decorative moldings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61176123A JPS6331742A (en) | 1986-07-26 | 1986-07-26 | Manufacture of decorative molding for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61176123A JPS6331742A (en) | 1986-07-26 | 1986-07-26 | Manufacture of decorative molding for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6331742A true JPS6331742A (en) | 1988-02-10 |
| JPH045540B2 JPH045540B2 (en) | 1992-01-31 |
Family
ID=16008077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61176123A Granted JPS6331742A (en) | 1986-07-26 | 1986-07-26 | Manufacture of decorative molding for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6331742A (en) |
-
1986
- 1986-07-26 JP JP61176123A patent/JPS6331742A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH045540B2 (en) | 1992-01-31 |
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