JPS63242515A - Extrusion molding method for long objects with U-shaped and C-shaped cross sections - Google Patents

Extrusion molding method for long objects with U-shaped and C-shaped cross sections

Info

Publication number
JPS63242515A
JPS63242515A JP62078463A JP7846387A JPS63242515A JP S63242515 A JPS63242515 A JP S63242515A JP 62078463 A JP62078463 A JP 62078463A JP 7846387 A JP7846387 A JP 7846387A JP S63242515 A JPS63242515 A JP S63242515A
Authority
JP
Japan
Prior art keywords
shaped
die
mixture
extrusion molding
shaped cross
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
Application number
JP62078463A
Other languages
Japanese (ja)
Other versions
JPH0473692B2 (en
Inventor
Kenichi Tsuji
健一 辻
Kihachi Onishi
喜八 大西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tatsuta Electric Wire and Cable Co Ltd
Original Assignee
Tatsuta Electric Wire and Cable Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tatsuta Electric Wire and Cable Co Ltd filed Critical Tatsuta Electric Wire and Cable Co Ltd
Priority to JP62078463A priority Critical patent/JPS63242515A/en
Publication of JPS63242515A publication Critical patent/JPS63242515A/en
Publication of JPH0473692B2 publication Critical patent/JPH0473692B2/ja
Granted legal-status Critical Current

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
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
    • 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
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts

Landscapes

  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、ガラス、平板等のエツジカバー、すなわち断
面Ｕ型、Ｃ型長尺物の押出成形方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an extrusion molding method for edge covers of glass, flat plates, etc., ie, elongated articles having a U-shaped or C-shaped cross section.

（従来技術） 断面Ｕ型、Ｃ型長尺物を押出成形する場合、その形状の
ままで押出成形することは極めて困難であって、通常の
押出成形技術では、Ｕ型、Ｕ型の開口方向に湾曲して押
出されたものはエツジカバーの如き用途には適さないも
のとなる。(Prior art) When extrusion molding a long object with a U-shaped or C-shaped cross section, it is extremely difficult to extrude the same shape. Extruded products with a curved shape are not suitable for uses such as edge covers.

上記の如き事情から、断面Ｕ型、Ｃ型長尺物の押出成形
物を得るには、一旦矩形又は楕円の管状に押出成形し、
その後、管状の一部を長さ方向に切除してＵ型又はＵ型
の長尺物を得るものであった。そのため、上記切除のた
めの治工具および装置あるいは熱源が必要で作業性、経
済性の上で難点があり、他の良い方法が求められていた
。Due to the above-mentioned circumstances, in order to obtain a long extrusion molded product with a U-shaped or C-shaped cross section, it is necessary to first extrude it into a rectangular or elliptical tube shape,
Thereafter, a portion of the tubular shape was cut in the length direction to obtain a U-shaped or U-shaped elongate product. Therefore, a tool, a device, or a heat source is required for the cutting, which is difficult in terms of workability and economy, and other better methods have been sought.

（発明が解決しようとする問題点） 本発明は、上記の点に鑑みてなされたものであって、容
易に断面Ｕ型、Ｃ型長尺物を押出成形し得る方法を提供
することを目的とする。(Problems to be Solved by the Invention) The present invention has been made in view of the above points, and an object of the present invention is to provide a method for easily extrusion molding a long article having a U-shaped or C-shaped cross section. shall be.

（問題点を解決するための手段） 本発明は、上記目的を達成するために、混練押出された
混和物をダイスとニップル間の混和物通路に導き、導か
れた混和物をダイスランドの長さより短かくダイスの前
面より後退して設けたセパレート仮によりダイスランド
内で分離通過させ、ダイスの前面より後退した部分で弱
い融合状態で管状に押出成形し、冷却水槽を通過後、前
記弱い融合部分で引き裂くことを特徴とするものである
。(Means for Solving the Problems) In order to achieve the above object, the present invention introduces a kneaded and extruded mixture into a mixture passage between a die and a nipple, and directs the guided mixture to a length of a die land. It is separated and passed through the die land by a separate part that is shorter than the diameter and set back from the front of the die, and is extruded into a tubular shape in a weakly fused state at the part set back from the front of the die.After passing through a cooling water tank, the weakly fused It is characterized by being torn in parts.

（作　用） 以上の如く構成する本発明の方法にあっては、混和物が
押出機のダイスランドを出てセパレート板により混和物
の流れが分けられた後に、分流した部分はダイスランド
のセパレート前部で弱い融合状態となって管状に押出成
形されるので、押出成形管は何れの方向にも湾曲せず、
冷却水槽を通過した後、前記の弱い融合した部分で引裂
くので、引裂きが極めて容易で目的製品に曲り、捻れも
生じなくしたものである。(Function) In the method of the present invention configured as described above, after the mixture leaves the die land of the extruder and the flow of the mixture is divided by the separate plate, the separated portion is separated from the separate plate of the die land. Because it is extruded into a tubular shape with weak fusion at the front, the extruded tube does not bend in any direction.
After passing through the cooling water tank, it is torn at the weakly fused portion, so it is extremely easy to tear and the desired product does not bend or twist.

（実施例） 次に、本発明の一実施例を図面と共に説明する。(Example) Next, an embodiment of the present invention will be described with reference to the drawings.

押出機（１）から混練押出された混和物（２）は、クロ
スヘッド（３）を経て混和物通路（４）に導かれる。混
和物通路（４）は、ダイスホルダー（６）にセットされ
たニップル（５）とダイス（７）との間に形成される。The mixture (2) kneaded and extruded from the extruder (1) is guided to the mixture passageway (4) via the crosshead (3). The mixture passage (4) is formed between the nipple (5) set in the die holder (6) and the die (7).

混和物（２）は混和物通路（４）を経てダイスランド（
８）とニップルランド（９）との間゛を通過する。この
とき、該混和物（２）はニセパレート板（１０）により
、その流れを一旦セバレートされダイスの前面（１１）
近傍で再び合流する。The mixture (2) passes through the mixture passage (4) and passes through the dice land (
8) and nipple land (9). At this time, the mixture (2) is once separated from its flow by a fake separating plate (10) and placed on the front surface (11) of the die.
They will meet again nearby.

このとき、混和物（２）の受ける圧力は低下しており、
弱い融合状！（１２）で管状に押出成形される。押出成
形された管状成形体（１３）は、冷却水槽（１４）を通
過して形状が固化される。At this time, the pressure applied to the mixture (2) is decreasing,
Weak fusion! (12) to extrude into a tubular shape. The extruded tubular molded body (13) passes through a cooling water tank (14) to solidify its shape.

形状が固化された管状成形体（１３）は、キヤプスタン
（１５）、ガイドローラ（Ｉ６）を経て引き裂かれ、断
面Ｕ型の製品部分はそのまま直進して巻取機（１７）に
巻取られ、製品とならない他の部分は巻取機（１８）に
巻取られる。このとき、セパレート板（１０）でセパレ
ートされた部分の混和物は弱い融合状態（１２）となっ
ているので簡単に引裂かれ、引裂かれた部分の表面荒れ
はない。The tubular molded body (13) whose shape has been solidified is torn apart via a capstan (15) and a guide roller (I6), and the product portion with a U-shaped cross section continues straight and is wound up by a winding machine (17). The other parts that will not become a product are wound up by a winding machine (18). At this time, since the mixture in the part separated by the separation plate (10) is in a weakly fused state (12), it is easily torn and there is no surface roughness in the torn part.

尚、上記実施例は、塩化ビニル樹脂混和物を材料とする
断面Ｃ型長尺物についての実施例であるが、他の材料、
他の断面形状、例えばＵ型のものも実施例と同様に押出
成形できる。また、押出混和物をセパレートするセパレ
ート板（１０）の厚さ、ダイス（７）の前面からの後退
位置（１１）の値は、押出成形材料、成形寸法などによ
ってその都度変化するので、適宜、実験的に求めた値で
決定する。また、実施例では、ダイスホルダーが省略さ
れているが、通常の押出機のクロスヘッドおよびダイス
ホルダーが設けられており、偏肉調整用ボルトナツトも
設けられていることはいうまでもないことである。The above example is an example of a long object with a C-shaped cross section made of a vinyl chloride resin mixture, but other materials,
Other cross-sectional shapes, such as U-shaped ones, can also be extruded in the same manner as in the examples. In addition, the thickness of the separating plate (10) that separates the extrusion mixture and the value of the retreat position (11) from the front of the die (7) change each time depending on the extrusion molding material, molding dimensions, etc., so Determine the value determined experimentally. Furthermore, although the die holder is omitted in the example, the crosshead and die holder of a normal extruder are provided, and it goes without saying that bolts and nuts for adjusting thickness unevenness are also provided. .

（効　果） 以上説明した如（、本発明によれば断面Ｕ型、Ｃ型長尺
物の押出成形に際し、製品が長手間口方向に湾曲するこ
となく成形ができ、従来の如き引裂きのための特別の装
置および熱源が不要となり、作業性、経済性を大巾に向
上させることができる。(Effects) As explained above (according to the present invention, when extrusion molding a long product with a U-shaped or C-shaped cross section, the product can be molded without curving in the longitudinal direction, and it can be easily molded without tearing as in conventional methods). This eliminates the need for special equipment and heat sources, greatly improving work efficiency and economic efficiency.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明実施のための押出成形全体配置図、第２
図は本発明実施のためのダイス、ニップル、セパレート
板およびダイスホルダ一部の縦断面図、第３図は同上の
正面図で、図中の主な符号は次の通りである。 （１）・・・・・・押出機、（２）・・・・・・混和物
、（３）・・・・・・クロスヘッド、（４）・・・・・
・混和物通路、（５）・・・・・・ニップル、（６）・
・・・・・ダイスホルタ−１（７）・・・・・・ダイス
、（８）・・・・・・ダイスランド、（９）・・・・・
・ニップルランド、（１０）・・・・・・セパレート板
、（１１）・・・・・・ダイスの前面、（１２）・・・
・・・弱い融合状態、（１３）・・・・・・管状成形体
、（１４）・・・・・・冷却水槽、（１５）・・・・・
・キャプスタン、（１６）・・・・・・ガイドローラ、
（１７）　、　（１８）・・・・・・巻取機。Figure 1 is an overall layout diagram of extrusion molding for carrying out the present invention;
The figure is a vertical cross-sectional view of a die, nipple, separate plate, and a part of the die holder for implementing the present invention, and FIG. 3 is a front view of the same. Main symbols in the figure are as follows. (1)...Extruder, (2)...Mixture, (3)...Crosshead, (4)...
・Admixture passage, (5)...Nipple, (6)・
...Dice halter 1 (7) ...Dice, (8) ...Dice land, (9) ...
・Nipple land, (10)... Separate plate, (11)... Front of die, (12)...
... Weak fusion state, (13) ... Tubular molded body, (14) ... Cooling water tank, (15) ...
・Capstan, (16)...Guide roller,
(17), (18)... Winding machine.

Claims (1)

【特許請求の範囲】[Claims] 混練押出された混和物をダイスとニップル間の混和物通
路に導き、導かれた混和物をダイスランドの長さより短
かくダイスの前面より後退して設けられたセパレート板
によりダイスランド内を分離通過させ、ダイスの前面よ
り後退した部分で弱い融合状態で管状に押出成形し、冷
却水槽を通過後、前記弱い融合部分で引き裂くことを特
徴する断面Ｕ型、Ｃ型長尺物の押出成形方法。The kneaded and extruded mixture is introduced into the mixture passage between the die and the nipple, and the introduced mixture is separated and passed through the die land by a separate plate that is shorter than the length of the die land and set back from the front of the die. A method for extrusion molding a long article with a U-shaped or C-shaped cross section, which comprises extruding it into a tubular shape in a weakly fused state at a part retreating from the front side of the die, and tearing it at the weakly fused part after passing through a cooling water tank.
JP62078463A 1987-03-30 1987-03-30 Extrusion molding method for long objects with U-shaped and C-shaped cross sections Granted JPS63242515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62078463A JPS63242515A (en) 1987-03-30 1987-03-30 Extrusion molding method for long objects with U-shaped and C-shaped cross sections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62078463A JPS63242515A (en) 1987-03-30 1987-03-30 Extrusion molding method for long objects with U-shaped and C-shaped cross sections

Publications (2)

Publication Number Publication Date
JPS63242515A true JPS63242515A (en) 1988-10-07
JPH0473692B2 JPH0473692B2 (en) 1992-11-24

Family

ID=13662718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62078463A Granted JPS63242515A (en) 1987-03-30 1987-03-30 Extrusion molding method for long objects with U-shaped and C-shaped cross sections

Country Status (1)

Country Link
JP (1) JPS63242515A (en)

Also Published As

Publication number Publication date
JPH0473692B2 (en) 1992-11-24

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