JPS635852Y2 - - Google Patents
Info
- Publication number
- JPS635852Y2 JPS635852Y2 JP1983143647U JP14364783U JPS635852Y2 JP S635852 Y2 JPS635852 Y2 JP S635852Y2 JP 1983143647 U JP1983143647 U JP 1983143647U JP 14364783 U JP14364783 U JP 14364783U JP S635852 Y2 JPS635852 Y2 JP S635852Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- cooling ring
- cooling
- wall
- uniform
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000001816 cooling Methods 0.000 claims description 21
- 238000001125 extrusion Methods 0.000 claims description 3
- 229920005992 thermoplastic resin Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- -1 polyethylene Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
本考案は熱可塑樹脂パイプ押出成形用冷却リン
グに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooling ring for extrusion molding of thermoplastic resin pipes.
熱可塑性樹脂のパイプ押出成形における冷却サ
イジング方法の１つに樹脂がパイプ状でダイス出
口から吐出された後、パイプの外周方向から水冷
却リングにより水を掛け予備冷却し、サイジング
ユニツトに導きパイプを成形する方法が行われて
いる。 One of the cooling sizing methods in pipe extrusion molding of thermoplastic resin is that after the resin is discharged from the die outlet in the form of a pipe, water is applied from the outer circumference of the pipe using a water cooling ring to pre-cool it, and then the pipe is guided to a sizing unit. A method of molding is being used.
従来この方法に使用されている水冷却リングは
成形性及び成形品の品質向上の点から出水口の周
方向からの水の均一な吹出し方向性と同時に均一
な吹出し水量を維持することが要求され、例えば
図１の断面図に示す様な形状のものが使われてい
る。 The water cooling ring conventionally used in this method is required to maintain a uniform blowout direction of water from the circumferential direction of the water outlet and a uniform blowout amount in order to improve moldability and quality of the molded product. For example, one having a shape as shown in the cross-sectional view of FIG. 1 is used.
冷却水のスリツト部１からの水の出方を均一に
する為、リング内の空間部２にセキ板を設けるか
又は水冷却リング給水口３を数多く、例えば通常
３〜４個所程度取る様な改良がなされていた。し
かし乍ら、これらの場合は冷却リングの構造が複
雑となり、微調整がしばしば必要となる。その上
成形冷却時の給水圧力の変動により均一な水の吐
出が得られない等の問題があり、パイプ表面に波
模様やシワが発生し、安定した成形や良好な製品
を得ることが困難であつた。 In order to make the flow of water uniform from the cooling water slit part 1, a partition plate is provided in the space 2 inside the ring, or a number of water cooling ring water supply ports 3 are provided, for example, usually about 3 to 4 locations. Improvements had been made. However, in these cases, the structure of the cooling ring becomes complex, and fine adjustments are often required. In addition, there are problems such as the inability to obtain uniform water discharge due to fluctuations in water supply pressure during molding cooling, and wavy patterns and wrinkles occur on the pipe surface, making it difficult to achieve stable molding and good products. It was hot.
本考案は、これらの欠点を改良するものであ
り、冷却リングの水の吹出し方向を均一にし、且
つ吹出し水量も均一にする水冷却リングである。 The present invention is intended to improve these drawbacks, and is a water cooling ring that makes the water blowing direction of the cooling ring uniform and the amount of water blown out uniform.
本考案の水冷却リングを図面により説明する。
本考案の冷却リングは第２図の断面に示すよう
に、第１図の出水口外壁４を延長し内壁５より通
常５〜10mm張出させて不良現象を解消させるもの
である。この改良によりスリツト部１より吹出す
水は次に出水口外壁４の張出面に沿つて流れるた
め、その間に水の流れる方向が修正され、一定方
向に吹出すことが可能となる。この事により、冷
却されるパイプ周囲に当る水の位置が一定かつ均
一となるため、冷却ムラがパイプに発生せず、冷
却が均一な事からパイプ表面温度が周方向に均一
となり、冷却工程のサイジング部でのサイジング
の安定度が増す。 The water cooling ring of the present invention will be explained with reference to the drawings.
In the cooling ring of the present invention, as shown in the cross section of FIG. 2, the outer wall 4 of the water outlet shown in FIG. 1 is extended to protrude from the inner wall 5 by 5 to 10 mm to eliminate the problem. With this improvement, the water blown out from the slit portion 1 then flows along the projecting surface of the outer wall 4 of the water outlet, so that the direction in which the water flows is corrected during that time, making it possible to blow out in a fixed direction. As a result, the position of the water that hits the circumference of the pipe to be cooled is constant and uniform, so uneven cooling does not occur on the pipe, and since the cooling is uniform, the pipe surface temperature is uniform in the circumferential direction, which improves the cooling process. The stability of sizing in the sizing section increases.
その結果、従来の冷却リングに比較し表面状態
の良好な製品パイプを成形する事ができる。 As a result, it is possible to mold a product pipe with a better surface condition compared to conventional cooling rings.
冷却リングの一般仕様は従来の冷却リングの仕
様が適用可能である。 Conventional cooling ring specifications can be applied to the general specifications of the cooling ring.
水冷却リング開口径は10mm〜300mm、出水口の
角度ａが10〜70度、吐出水量0.5〜30／minの
広範囲の仕様が可能である。又成形されるパイプ
寸法においては外径５〜250mm、肉厚1.0〜20mmの
範囲のものにまで適用できる。また成形に使用可
能な樹脂はポリエチレン、ポリプロピレン、ポリ
塩化ビニール、ポリスチレン、ポリアミド、ポリ
エチレンテレフタレート、ポリカーボネート等で
あり、これらの樹脂においては良好な外観を有す
るパイプを得ることができる。 A wide range of specifications is possible, with the water cooling ring opening diameter ranging from 10 mm to 300 mm, the water outlet angle a from 10 to 70 degrees, and the water discharge rate from 0.5 to 30/min. In addition, it can be applied to molded pipes with an outer diameter of 5 to 250 mm and a wall thickness of 1.0 to 20 mm. Further, resins that can be used for molding include polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyamide, polyethylene terephthalate, polycarbonate, etc., and pipes with good appearance can be obtained using these resins.
第１図は従来使用されている水冷却リングの断
面図であり、第２図は本考案の１実施例の水冷却
リングの断面図である。
図において、１……スリツト部、２……空間
部、３……冷却水入口、４……出水口外壁、５…
…出水口内壁、ａ……出水口壁角度である。
FIG. 1 is a sectional view of a conventional water cooling ring, and FIG. 2 is a sectional view of a water cooling ring according to an embodiment of the present invention. In the figure, 1... slit part, 2... space part, 3... cooling water inlet, 4... water outlet outer wall, 5...
... Water outlet inner wall, a... Water outlet wall angle.
Claims (1)
する外壁４の長さが内壁５の長さより張出してい
る熱可塑性樹脂パイプ押出成形用冷却リング。 A cooling ring for extrusion molding of a thermoplastic resin pipe, which has 1 to 4 water supply ports, and the length of the outer wall 4 constituting the water outlet extends beyond the length of the inner wall 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983143647U JPS6051021U (en) | 1983-09-19 | 1983-09-19 | Cooling ring for thermoplastic pipe extrusion molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983143647U JPS6051021U (en) | 1983-09-19 | 1983-09-19 | Cooling ring for thermoplastic pipe extrusion molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6051021U JPS6051021U (en) | 1985-04-10 |
| JPS635852Y2 true JPS635852Y2 (en) | 1988-02-18 |
Family
ID=30320584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983143647U Granted JPS6051021U (en) | 1983-09-19 | 1983-09-19 | Cooling ring for thermoplastic pipe extrusion molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6051021U (en) |
-
1983
- 1983-09-19 JP JP1983143647U patent/JPS6051021U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6051021U (en) | 1985-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4285655A (en) | Coat hanger die | |
| SE438117B (en) | ANIMAL SPRAY NOZZLE ON A STRING PRESSURE HEAD | |
| US3416190A (en) | Diehead | |
| JPS635852Y2 (en) | ||
| US3331103A (en) | Extrusion die for foamable thermoplastic compositions | |
| GB1482956A (en) | Process for moulding multi-layer articles | |
| GB1157245A (en) | Process for the Manufacture of Tubular Polyethylene Films | |
| GB1330768A (en) | Extrusion head for making tubular plastics film | |
| US4244995A (en) | One piece molded picture frame and method of making the same | |
| JPH08174622A (en) | Covered pipe and molding die for manufacture thereof | |
| TWI714902B (en) | Annular manifold for an extrusion head for producing a tubular moulding from a thermoplastic material | |
| JPS61244522A (en) | Method of extruding foaming plastic material | |
| US3632266A (en) | Continuous apparatus for extruding and forming thermoplastic articles | |
| JPH0147286B2 (en) | ||
| JPS6052927B2 (en) | Thermoplastic resin foam manufacturing equipment | |
| JPH0588171B2 (en) | ||
| JPH0247339B2 (en) | ||
| JP3560354B2 (en) | Mold in extrusion molding machine | |
| JPS5922665B2 (en) | Manufacturing method of insulation material cladding | |
| JP3210534B2 (en) | Plastic artificial wood, method of manufacturing plastic artificial wood, and coupled joiner used in the method | |
| JPH11286041A (en) | Method for forming parison and its apparatus and blow die head used for this | |
| JPH05237929A (en) | Production of gas material made of synthetic resin | |
| JPS59182717A (en) | Formation of hollow molding | |
| KR20040003776A (en) | Die for extruding machine | |
| JP2581877Y2 (en) | Blow molding machine |