JPH0473692B2 - - Google Patents
Info
- Publication number
- JPH0473692B2 JPH0473692B2 JP62078463A JP7846387A JPH0473692B2 JP H0473692 B2 JPH0473692 B2 JP H0473692B2 JP 62078463 A JP62078463 A JP 62078463A JP 7846387 A JP7846387 A JP 7846387A JP H0473692 B2 JPH0473692 B2 JP H0473692B2
- Authority
- JP
- Japan
- Prior art keywords
- die
- mixture
- shaped
- land
- extruded
- 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 - Lifetime
Links
- 239000000203 mixture Substances 0.000 claims description 21
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 210000002445 nipple Anatomy 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 5
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000004804 winding Methods 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
- 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
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
あつて、通常の押出成形技術では、Ｕ型、Ｃ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 extruding a long object with a U-shaped or C-shaped cross section, it is extremely difficult to extrude the same shape, and with normal extrusion techniques, the opening direction of the U-shaped or C-shaped 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Ｃ型の長尺物を得るものであつ
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 tubular shape, and then cut a part of the tubular shape in the length direction to obtain a U-shaped or C-shaped elongated product. The method was to obtain a long product of type or C shape. 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
つて、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ツプル間の混和物通
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
レート板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. A separate plate that is shorter than the die and set back from the front of the die separates and passes through the die land.
It is characterized in that it is extruded into a tubular shape in a weakly fused state at a portion retreating from the front surface of the die, and is torn at the weakly fused portion after passing through a cooling water tank.
（作用）
以上の如く構成する本発明の方法にあつては、
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
合状態となつ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 parts are weakly fused at the front of the separate plate of the die land and extruded into a tubular shape. The formed tube does not curve in any direction, and after passing through the cooling water tank, it tears at the weakly fused portion, so it is extremely easy to tear and bends into the desired product without causing twisting.
（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 example 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
スヘツド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にセツトされたニ
ツプル５とダイス７との間に形成される。混和物
２は混和物通路４を経てダイスランド８とニツプ
ルランド９との間を通過する。このとき、該混和
物２は、セパレート板１０により、その流れを一
旦セパレートされダイスの前面１１近傍で再び合
流する。 The mixture 2 kneaded and extruded from the extruder 1 is guided to a mixture passage 4 via a crosshead 3. The mixture passage 4 is formed between a nipple 5 set in a die holder 6 and a die 7. The mixture 2 passes through the mixture passage 4 between the die land 8 and the nipple land 9. At this time, the flows of the mixture 2 are once separated by the separation plate 10 and rejoined near the front surface 11 of the die.
このとき、混和物２の受ける圧力は低下してお
り、弱い融合状態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, and the mixture 2 is extruded into a tubular shape in a weakly fused state 12.
The extruded tubular molded body 13 is placed in a cooling water tank 14.
The shape is solidified through the process.
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１６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１
７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となつ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 through a capstan 15 and a guide roller 16.
The product part with a U-shaped cross section continues straight to winder 1.
7, and the other portions that will not become a product are wound up by a winder 18. At this time, the separate plate 10
Since the mixture in the separated part 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Ｕ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Ｃ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、成形寸法などによつてその都度変化す
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ツドおよびダイス
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 U-shaped cross section made of a vinyl chloride resin mixture, but it can also be made of other materials and with a different cross-sectional shape, such as a C-shape, in the same manner as in the example. Can be extruded. In addition, the thickness of the separating plate 10 that separates the extrusion mixture,
The value of the retreat position 11 of the die 7 from the front surface changes each time depending on the extrusion molding material, molding dimensions, etc., so it is determined as appropriate using an experimentally determined value. Furthermore, although the die holder is omitted in the embodiment, a crosshead and a 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）
以上説明した如く、本発明によれば断面Ｕ型、
Ｃ型長尺物の押出成形に際し、製品が長手開口方
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, the cross section is U-shaped,
When extrusion molding C-shaped long objects, the product can be molded without curving in the direction of the longitudinal opening, eliminating the need for special equipment and heat sources for tearing as in the past, greatly improving workability and economic efficiency. can be done.
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、ニツプ
ル、セパレート板およびダイスホルダー部の縦断
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
ツド、４……混和物通路、５……ニツプル、６…
…ダイスホルダー、７……ダイス、８……ダイス
ランド、９……ニツプルランド、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……キヤプスタン、１６……ガイドロー
ラ、１７，１８……巻取機。
Fig. 1 is an overall layout of extrusion molding for carrying out the present invention, Fig. 2 is a vertical cross-sectional view of a die, nipple, separate plate, and die holder section for carrying out the present invention, and Fig. 3 is a front view of the same. , the main symbols in the figure are as follows. DESCRIPTION OF SYMBOLS 1...Extruder, 2...Mixture, 3...Crosshead, 4...Mixture passage, 5...Nipple, 6...
...Dice holder, 7...Dice, 8...Dice land, 9...Nipple land, 10...Separate plate, 11...Front surface of die, 12...Weakly fused state, 13...Tubular molded body, 14... Cooling water tank, 15... Capstan, 16... Guide roller, 17, 18... Winding machine.
Claims (1)
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。1 The kneaded and extruded mixture is introduced into the mixture passage between the die and the nipple, and the introduced mixture is separated in 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, characterized by passing through the die, extruding it into a tubular shape in a weakly fused state at a part retreating from the front surface of the die, and tearing it at the weakly fused part after passing through a cooling water tank. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62078463A JPS63242515A (en) | 1987-03-30 | 1987-03-30 | Extrusion molding of product in a continuous length with u-shaped or c-shaped cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62078463A JPS63242515A (en) | 1987-03-30 | 1987-03-30 | Extrusion molding of product in a continuous length with u-shaped or c-shaped cross section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63242515A JPS63242515A (en) | 1988-10-07 |
| JPH0473692B2 true 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 of product in a continuous length with u-shaped or c-shaped cross section |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63242515A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4981637A (en) * | 1988-10-28 | 1991-01-01 | Jmk International, Inc. | Method of forming an improved wiper blade |
-
1987
- 1987-03-30 JP JP62078463A patent/JPS63242515A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63242515A (en) | 1988-10-07 |
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