JPS6112778B2 - - Google Patents
Info
- Publication number
- JPS6112778B2 JPS6112778B2 JP54040628A JP4062879A JPS6112778B2 JP S6112778 B2 JPS6112778 B2 JP S6112778B2 JP 54040628 A JP54040628 A JP 54040628A JP 4062879 A JP4062879 A JP 4062879A JP S6112778 B2 JPS6112778 B2 JP S6112778B2
- Authority
- JP
- Japan
- Prior art keywords
- section
- shaped
- cross
- extrusion molding
- notches
- 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
Links
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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
-
- 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
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/0063—Cutting longitudinally
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、断面がＵ字形でありその開口部の幅
が狭小であるプラスチツク成形物の連続的製法に
関する。この成形部材は、各種装置の突出部や筐
体類のエツジ部などの保護材として用いられる。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous process for producing plastic moldings having a U-shaped cross section and a narrow opening. This molded member is used as a protective material for protrusions of various devices, edges of housings, etc.
従来、この種の部材は規定寸法、形状の金型を
用いてモールド法にて製造されており、製造効率
面、コスト面で不利であつた。 Conventionally, this type of member has been manufactured by a molding method using a mold having a specified size and shape, which is disadvantageous in terms of manufacturing efficiency and cost.
本発明は、上記のＵ字形合成樹脂部材を押出成
形法によつて連続的、効率的に製造する方法を提
供する。第１図に示す如く、断面が中空ひようた
ん形の樹脂管を押出成形法によつて成形した後、
このひようたん形樹脂管を断面狭小部に沿つて切
断して第２図および第３図に示す形状の２条のＵ
字形成形物を同時に連続して得ることが可能であ
る。 The present invention provides a method for continuously and efficiently manufacturing the above-mentioned U-shaped synthetic resin member by extrusion molding. As shown in Figure 1, after forming a resin tube with a hollow gourd-shaped cross section by extrusion molding,
This gourd-shaped resin tube is cut along the narrow section to form two U strips in the shape shown in Figures 2 and 3.
It is possible to obtain character-forming shapes simultaneously and successively.
第１図のｂ，ｃに示したように、樹脂管の断面
狭小部の対向する２ケ所の内面または外面あるい
はその両面に切欠部を有するように押出成形し、
この部分で２分割する場合には、切断が容易にな
るだけでなく第２図のｂ，ｃに示した如く、先端
開口部の内面または外面あるいはその両面にテー
パがついた構造となるのでＵ字形部材の保護物品
への装着が容易となるという特長を有する。 As shown in FIG. 1 b and c, the resin pipe is extruded so as to have notches on two opposing inner or outer surfaces or both sides of the narrow section,
When dividing into two parts at this part, it not only makes cutting easier, but also creates a tapered structure on the inner or outer surface or both sides of the tip opening, as shown in Figure 2 b and c. The feature is that the shape member can be easily attached to the protective article.
ひようたん形の断面の樹脂管を押出成形するに
は、第４図に示したような形状の押出用ダイスと
この形状を保持できるような形状に加工された成
形ダイを用いた加（内）圧成形法あるいは真空吸
引成形法などの周知の成形法を採用すれば容易に
実現できる。第４図における１はダイスの材料吐
出口を示す。 To extrude a resin tube with a gourd-shaped cross section, an extrusion die with the shape shown in Figure 4 and a molding die that is shaped to maintain this shape are used. ) This can be easily realized by employing a well-known molding method such as a pressure molding method or a vacuum suction molding method. 1 in FIG. 4 indicates the material discharge port of the die.
上述のように、本発明によるＵ字形合成樹脂成
形物の製造方法は従来方法に比べて加工工数を大
幅に減らして、同時に２条を連続して製造し得る
ため、加工費の著しい低減がはかれるという特長
を有する。 As mentioned above, the method for manufacturing a U-shaped synthetic resin molded article according to the present invention can significantly reduce the number of processing steps compared to conventional methods, and can manufacture two strips in succession at the same time, resulting in a significant reduction in processing costs. It has the following characteristics.
第１図は本発明にかかる成形物の押出成形直後
の断面図、第２図は本発明にかかる成形物の断面
図、第３図は本発明にかかる成形物の斜視図、第
４図は本発明にかかる成形物を押出す時に使用す
るダイス形状で１は材料吐出口を示す。
FIG. 1 is a cross-sectional view of the molded product according to the present invention immediately after extrusion molding, FIG. 2 is a cross-sectional view of the molded product according to the present invention, FIG. 3 is a perspective view of the molded product according to the present invention, and FIG. 4 is a cross-sectional view of the molded product according to the present invention. In the die shape used when extruding the molded product according to the present invention, 1 indicates a material discharge port.
Claims (1)
押出成形し、断面狭小部に沿つて切断して２条の
成形品を得ることを特徴とするＵ字形合成樹脂成
形物の連続的製造方法。 ２ 断面が中空ひようたん形の樹脂管の断面狭小
部の対向する２ケ所の内面または外面あるいはそ
の両面に切欠部を有するように熱可塑性樹脂管を
押出成形し、前記切欠部を切断することを特徴と
する特許請求の範囲第１項記載のＵ字形合成樹脂
成形物の連続製造方法。[Claims] 1 U-shaped synthetic resin molding characterized by extrusion molding a thermoplastic resin tube with a hollow gourd-shaped cross section and cutting it along the narrow cross-sectional area to obtain a two-strip molded product. A continuous method of manufacturing things. 2. Extrusion molding a thermoplastic resin pipe so that it has notches on two opposing inner or outer surfaces of the narrow section of the resin pipe having a hollow gourd-shaped cross section, or both thereof, and cutting the said notches. A method for continuously producing a U-shaped synthetic resin molded article according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4062879A JPS55132228A (en) | 1979-04-03 | 1979-04-03 | Continuous production of u-shaped synthetic resin piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4062879A JPS55132228A (en) | 1979-04-03 | 1979-04-03 | Continuous production of u-shaped synthetic resin piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55132228A JPS55132228A (en) | 1980-10-14 |
| JPS6112778B2 true JPS6112778B2 (en) | 1986-04-10 |
Family
ID=12585798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4062879A Granted JPS55132228A (en) | 1979-04-03 | 1979-04-03 | Continuous production of u-shaped synthetic resin piece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55132228A (en) |
-
1979
- 1979-04-03 JP JP4062879A patent/JPS55132228A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55132228A (en) | 1980-10-14 |
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