JPS6330220A - Treatment method of terminal of injection molded product having clothlike skin - Google Patents
Treatment method of terminal of injection molded product having clothlike skinInfo
- Publication number
- JPS6330220A JPS6330220A JP17428786A JP17428786A JPS6330220A JP S6330220 A JPS6330220 A JP S6330220A JP 17428786 A JP17428786 A JP 17428786A JP 17428786 A JP17428786 A JP 17428786A JP S6330220 A JPS6330220 A JP S6330220A
- Authority
- JP
- Japan
- Prior art keywords
- skin material
- clothlike
- molded product
- cloth
- terminal
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 18
- 239000007924 injection Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000011282 treatment Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 65
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 13
- 239000000057 synthetic resin Substances 0.000 claims abstract description 13
- 238000001746 injection moulding Methods 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract 2
- 238000005266 casting Methods 0.000 abstract 1
- 238000004299 exfoliation Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002343 gold Chemical class 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
- B29C45/14778—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 the article consisting of a material with particular properties, e.g. porous, brittle
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、例えば自動車の内Ｈ材などどして用いる布状
表皮材を有する射出成形品の端末処理方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a method for terminal treatment of an injection molded article having a cloth-like skin material used, for example, as an inner H material of an automobile.
（従来の技術）
布状表皮材を右する射出成形品の製造にあたっては、金
型内に布状表皮材を配置し、その金型のキャビティ内に
溶融合成樹ｎｎを射出して成形品本体と布状表皮材を一
体化し、表面に布状表皮材を有する射出成形品を成形し
ている。(Prior art) When manufacturing an injection molded product using a cloth-like skin material, the cloth-like skin material is placed in a mold, and molten synthetic wood is injected into the cavity of the mold to form the molded product body. and cloth-like skin material are integrated to form an injection molded product having cloth-like skin material on the surface.
そして、この射出成形の際には、金型内に成形品本体よ
り大きめの布状表皮材を配置して成形品本体の端末より
布状表皮材の端末が張り出した状態で成形を行ない、こ
の成形と同時にあるいは成形後の次工程においてその布
状表皮材の端末の処理を行なっている。Then, during this injection molding, a cloth-like skin material larger than the molded product body is placed in the mold, and molding is performed with the end of the cloth-like skin material overhanging the end of the molded product body. The ends of the cloth-like skin material are treated simultaneously with molding or in the next step after molding.
従来、この端末処理方法としては、例えば特開昭６０−
２２０７１９号公報に示されるように、布状表皮材の端
末が成形品本体より張り出した状態で成形し、その布状
表皮材の端末にお【プる余剰分を成形と同時あるいは成
形後に切断して端末の切断仕上げを行なっている。しか
し、この方法によると、布状表皮材であることから、切
断により布状表皮材の糸のほつれ等が生じて仕上げが悪
く、フレーム処理等の二次的な処理を行なう必要がある
１゜
そこで、特開昭６０−２２０７１９号公報に示されるよ
うに、布状表皮材の端末を成形品本体の内側に折返して
接着固定する方法が知られており、この方法は、布状表
皮材の切断が寛容でよいという作業性の面から多用され
ている。しかし、この方法によると、布状表皮材の端末
を成形品本体の内側に折返して接着固定することから、
作業者の熟練を必要とし、また、折返しがきれいにでき
’Ｊかったり、はがれが生じる危険性がある。Conventionally, as this terminal processing method, for example, Japanese Patent Application Laid-Open No. 1986-
As shown in Publication No. 220719, the ends of the cloth-like skin material are molded in a state that they protrude from the main body of the molded product, and the excess portion that flows into the ends of the cloth-like skin material is cut off at the same time or after the molding. The terminals are being cut and finished. However, according to this method, since the cloth-like skin material is cut, the threads of the cloth-like skin material become frayed, resulting in a poor finish and the need for secondary treatments such as frame treatment. Therefore, as shown in Japanese Patent Application Laid-Open No. 60-220719, a method is known in which the end of the cloth-like skin material is folded back inside the molded product body and fixed by adhesive. It is widely used because of its ease of cutting and ease of cutting. However, according to this method, the end of the cloth-like skin material is folded back inside the molded product body and fixed with adhesive.
It requires skill on the part of the operator, and there is a risk that the folding may not be done neatly or peeling may occur.
（発明が解決しようとする問題点）
１記のように、従来の端末処理方法によると、布状表皮
材の端末の処理に難点があり、外観が損われ易い問題が
ある。(Problems to be Solved by the Invention) As described in 1., according to the conventional end treatment method, there is a problem in treating the end of the cloth-like skin material, and the appearance is easily damaged.
本発明は」ニ述のような問題点に鑑みなされたしので、
イ１」状表皮材の端末の処理を容易かつ確実に行なえ、
外観を良好にできる布状表皮材を有する射出成形品の端
末処理方法を提供することを目的とするしのである。The present invention was made in view of the problems mentioned above.
A1: Processing of the ends of the "shaped skin material can be carried out easily and reliably.
The object of the present invention is to provide a method for terminal treatment of an injection molded product having a cloth-like skin material that can improve the appearance.
（問題点を解決するための手段）
本発明の布状表皮材を有する射出成形品の端末処理方法
は、金型１内に布状表皮材７を配置し、その金型１のキ
ャビティ５内に溶融合成樹脂を射出して布状表皮材７と
成形品本体８を一体化した表面に布状表皮材７を有する
射出成形品において、上記成形品本体８の端末に布状表
皮材７の端末が一体化される肉薄部９を一体的に射出成
形し、その肉薄部９と布状表皮材７の端末部を一体のま
ま同時に切除するものである。(Means for Solving the Problems) The terminal treatment method for an injection molded product having a cloth-like skin material according to the present invention includes arranging a cloth-like skin material 7 in a mold 1, and disposing the cloth-like skin material 7 in a cavity 5 of the mold 1. In an injection molded product having the cloth-like skin material 7 on the surface where the cloth-like skin material 7 and the molded product body 8 are integrated by injecting molten synthetic resin, the cloth-like skin material 7 is attached to the end of the molded product body 8. The thin part 9 whose end is integrated is integrally injection molded, and the thin part 9 and the end part of the cloth-like skin material 7 are simultaneously cut off while remaining integral.
（作用）
本発明の布状表皮材を有する射出成形品の端末処理方法
は、成形品本体８の端末に布状表皮材７の端末が一体化
される肉薄部９を一体的に射出成形し、その一体化した
肉薄部９と布状表皮材７の端末部を一体のまま同時に切
除するようにしたものである。(Function) The end treatment method for an injection molded product having a cloth-like skin material of the present invention includes integrally injection molding a thin wall portion 9 in which the end of the cloth-like skin material 7 is integrated with the end of the molded product main body 8. , the integrated thin portion 9 and the end portion of the cloth-like skin material 7 are cut off simultaneously while remaining integral.
（実施例）
以下、本発明の一実施例の構成を図面を参照して説明づ
る。(Embodiment) Hereinafter, the configuration of an embodiment of the present invention will be described with reference to the drawings.
第１図において、１は金ｇｇで、スプルー２を右覆る固
定型３と可動型４とを対設し、この固定へ１！３と可動
型４とが接合した際の内部間にキャビディ５およびこの
キャビティ５の端末部に、固定型３と可動型４の望割線
に沿って肉薄部成形空間６が設けられている。In Fig. 1, reference numeral 1 is gold gg, and a fixed mold 3 and a movable mold 4 that cover the sprue 2 on the right side are installed, and a cavity 5 is formed between the insides when the fixed mold 1!3 and the movable mold 4 are joined. A thin wall molding space 6 is provided at the end of the cavity 5 along the dividing line between the fixed mold 3 and the movable mold 4.
イし“（−１この金へ１１内に布状表皮材７がその布状
表皮材７の端末を固定型３および可動型４間に挟持され
た状態で配置されている。A cloth-like skin material 7 is placed in this gold plate 11 with the end of the cloth-like skin material 7 being sandwiched between the fixed mold 3 and the movable mold 4.
そうして、スプルー２から熱可塑性合成樹脂の溶融合成
樹脂を注入すると、この溶融合成樹脂は、布状表皮材７
を注入側とは反対の可動型４の型面に密着させてキャビ
ティ５および肉薄部成形空間６内に充填され、そして、
適痕な冷却期間を杼で成形が完了し、第２図に示すよう
に、成形品本体８の表面に布状表皮材７が一体化され、
また、成形品本体８の端末に肉薄部９が設けられ、この
肉薄部９の表面に布状表皮材７の端末が一体化されてい
る。Then, when the molten synthetic resin of thermoplastic synthetic resin is injected from the sprue 2, this molten synthetic resin is transferred to the cloth-like skin material 7.
is brought into close contact with the mold surface of the movable mold 4 opposite to the injection side, and filled into the cavity 5 and the thin-walled part molding space 6, and
The molding is completed using a shuttle after a suitable cooling period, and as shown in FIG. 2, the cloth-like skin material 7 is integrated on the surface of the molded product body 8.
Further, a thin wall portion 9 is provided at the end of the molded product main body 8, and the end of the cloth-like skin material 7 is integrated on the surface of the thin wall portion 9.
また、その溶融合成樹脂の注入時に、溶融合成樹脂が布
状表皮材７の糸間の隙間に流入することにより、成形品
本体８と布状表皮材７との機械的結合強度が強固になり
、かつ、肉薄部９と布状表皮材７の端末との機械的結合
強度も同様に強固になる。なお、例えばポリプロピレン
等の流動性の良好な合成樹脂は布状表皮材７の糸間の隙
間への流入性が良好であるが、流動性の悪く布状表皮材
７の糸間の隙間への流入性が悪い合成樹脂材料の場合に
は、予め布状表皮材７に接着剤を塗布するようにすれば
よい。Furthermore, when the molten synthetic resin is injected, the molten synthetic resin flows into the gaps between the threads of the cloth-like skin material 7, thereby strengthening the mechanical bonding strength between the molded product body 8 and the cloth-like skin material 7. , and the mechanical bonding strength between the thin portion 9 and the end of the cloth-like skin material 7 is also strengthened. Note that, for example, a synthetic resin with good fluidity such as polypropylene has good flowability into the gaps between the threads of the cloth-like skin material 7, but has poor fluidity and flows easily into the gaps between the threads of the cloth-like skin material 7. In the case of a synthetic resin material having poor flowability, an adhesive may be applied to the cloth-like skin material 7 in advance.
そして、この一体化された肉薄部９と布状表皮材７の端
末部を、肉薄部９と成形品本体８との境目あるいは肉薄
部９の中間部分で肉薄部９と成形品本体８との段差に沿
って、例えば加熱されたカッターによって一体に切断す
る。Then, the end portion of the integrated thin part 9 and the cloth-like skin material 7 is connected to the thin part 9 and the molded product body 8 at the boundary between the thin part 9 and the molded product body 8 or at the intermediate part of the thin part 9. It is cut into one piece along the step, for example with a heated cutter.
このようにして成形された射出成形品は、布状表皮材７
の糸間に合成樹脂が流入しており糸−本毎について強固
に固定されていることにより、切断によって布状表皮材
７の糸のほつれやはがれ等が生じることなく、端末をき
れいに仕上げることができる。The injection molded product formed in this way has a cloth-like skin material 7.
Since the synthetic resin flows between the threads and each thread is firmly fixed, the threads of the cloth-like skin material 7 do not become frayed or peeled off when cut, and the ends can be finished neatly. can.
本発明によれば、成形品本体の端末に布状表皮材の端末
が一体化される肉薄部を一体的に射出成形し、その一体
化された肉薄部と布状表皮材の端末部を一体のまま同時
に切除することにより、布状表皮材の糸のほつれや端末
のはがれ等の発生を防止し、端末の処理を容易かつ確実
にでき、外観のよい製品を得ることができる。According to the present invention, the thin part where the end of the cloth-like skin material is integrated with the end of the molded product body is integrally injection molded, and the integrated thin part and the end of the cloth-like skin material are integrated. By simultaneously cutting the cloth-like skin material, fraying of the threads and peeling off of the ends can be prevented, the ends can be treated easily and reliably, and a product with a good appearance can be obtained.
第１図は本発明の布状表皮材を有する射出成形品の端末
処理方法の一実施例を示す断面図、第２図はその射出成
形品の一部断面図である。
１・・金型、５・・キャビティ、７・・布状表皮材、８
・・成形品本体、９・・肉薄部。FIG. 1 is a sectional view showing an embodiment of the method for treating the ends of an injection molded product having a cloth-like skin material according to the present invention, and FIG. 2 is a partial sectional view of the injection molded product. 1. Mold, 5. Cavity, 7. Cloth-like skin material, 8
・・Molded product body, 9.・Thin wall part.
Claims (1)
ティ内に溶融合成樹脂を射出して成形品本体と布状表皮
材を一体化した表面に布状表皮材を有する射出成形品に
おいて、 上記成形品本体の端末に布状表皮材の端末が一体化され
る肉薄部を一体的に射出成形し、その肉薄部と布状表皮
材の端末部を一体のまま同時に切除することを特徴とす
る布状表皮材を有する射出成形品の端末処理方法。(1) Injection with cloth-like skin material on the surface where cloth-like skin material is placed in a mold and molten synthetic resin is injected into the mold cavity to integrate the molded product body and cloth-like skin material. In the molded product, a thin part where the end of the cloth-like skin material is integrated with the end of the molded product body is integrally injection molded, and the thin part and the end of the cloth-like skin material are removed simultaneously while being integral. A method for terminal treatment of an injection molded product having a cloth-like skin material, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17428786A JPS6330220A (en) | 1986-07-24 | 1986-07-24 | Treatment method of terminal of injection molded product having clothlike skin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17428786A JPS6330220A (en) | 1986-07-24 | 1986-07-24 | Treatment method of terminal of injection molded product having clothlike skin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6330220A true JPS6330220A (en) | 1988-02-08 |
| JPH0411089B2 JPH0411089B2 (en) | 1992-02-27 |
Family
ID=15976032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17428786A Granted JPS6330220A (en) | 1986-07-24 | 1986-07-24 | Treatment method of terminal of injection molded product having clothlike skin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6330220A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63212521A (en) * | 1987-03-02 | 1988-09-05 | Kasai Kogyo Co Ltd | Laminated molded product |
| JPH01153214U (en) * | 1988-04-13 | 1989-10-23 | ||
| JPH06114879A (en) * | 1992-09-30 | 1994-04-26 | Itoki Crebio Corp | Method and apparatus for manufacturing synthetic resin molded form covered with decorative sheet |
| WO2000067983A1 (en) * | 1999-05-07 | 2000-11-16 | Schefenacker Visions Systems Australia Pty Ltd | Method of producing a plastic moulded part including an external covering |
| EP2072211A1 (en) * | 2007-12-20 | 2009-06-24 | FIH (Hong Kong) Limited | Method for making multi-layered molded articles |
| EP2072212A1 (en) * | 2007-12-21 | 2009-06-24 | FIH (Hong Kong) Limited | Method for making multi-layered molded articles |
| JP2016221883A (en) * | 2015-06-01 | 2016-12-28 | 森六テクノロジー株式会社 | Injection molded article and trimming method of the same |
| JP2019206142A (en) * | 2018-05-30 | 2019-12-05 | 株式会社クラレ | Method of manufacturing decorative molded body |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54135856A (en) * | 1978-04-13 | 1979-10-22 | Yamashita Fishing Tackles | Production of button or like |
-
1986
- 1986-07-24 JP JP17428786A patent/JPS6330220A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54135856A (en) * | 1978-04-13 | 1979-10-22 | Yamashita Fishing Tackles | Production of button or like |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63212521A (en) * | 1987-03-02 | 1988-09-05 | Kasai Kogyo Co Ltd | Laminated molded product |
| JPH01153214U (en) * | 1988-04-13 | 1989-10-23 | ||
| JPH06114879A (en) * | 1992-09-30 | 1994-04-26 | Itoki Crebio Corp | Method and apparatus for manufacturing synthetic resin molded form covered with decorative sheet |
| WO2000067983A1 (en) * | 1999-05-07 | 2000-11-16 | Schefenacker Visions Systems Australia Pty Ltd | Method of producing a plastic moulded part including an external covering |
| US6849225B1 (en) | 1999-05-07 | 2005-02-01 | Schefenacker Vision Systems Australia Pty Ltd | Method of producing a plastic moulded part including an external covering |
| EP2072211A1 (en) * | 2007-12-20 | 2009-06-24 | FIH (Hong Kong) Limited | Method for making multi-layered molded articles |
| EP2072212A1 (en) * | 2007-12-21 | 2009-06-24 | FIH (Hong Kong) Limited | Method for making multi-layered molded articles |
| JP2016221883A (en) * | 2015-06-01 | 2016-12-28 | 森六テクノロジー株式会社 | Injection molded article and trimming method of the same |
| JP2019206142A (en) * | 2018-05-30 | 2019-12-05 | 株式会社クラレ | Method of manufacturing decorative molded body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0411089B2 (en) | 1992-02-27 |
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