JPH0436256Y2 - - Google Patents
Info
- Publication number
- JPH0436256Y2 JPH0436256Y2 JP1985053309U JP5330985U JPH0436256Y2 JP H0436256 Y2 JPH0436256 Y2 JP H0436256Y2 JP 1985053309 U JP1985053309 U JP 1985053309U JP 5330985 U JP5330985 U JP 5330985U JP H0436256 Y2 JPH0436256 Y2 JP H0436256Y2
- Authority
- JP
- Japan
- Prior art keywords
- extruder
- hopper
- pellet
- feed roller
- screw
- 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
- 239000000463 material Substances 0.000 claims description 44
- 229920001971 elastomer Polymers 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 15
- 239000008188 pellet Substances 0.000 claims description 9
- 239000003507 refrigerant Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 description 9
- 239000004033 plastic Substances 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Description
【考案の詳細な説明】
［考案の技術分野］
本考案は、ゴムとプラスチツクの両方の押出し
が可能ないわゆる兼用型の押出機に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a so-called dual-purpose extruder capable of extruding both rubber and plastic.
［考案の技術的背景とその問題点］
従来より、ポリエチレンやポリ塩化ビニル等の
ペレツト状に成形されたプラスチツク材料をパイ
プや棒状に連続的に成形する装置として、第４図
に示すようなスクリユー式の押出機が多用されて
いる。[Technical background of the invention and its problems] Conventionally, as a device for continuously forming pellet-shaped plastic materials such as polyethylene or polyvinyl chloride into pipes or rods, a screw machine as shown in Fig. 4 has been used. Type extruders are often used.
このような従来の押出機においては、プラスチ
ツク材料はシリンダ１内のスクリユー２の真上に
取り付けられたホツパ３により行なわれ、ホツパ
３から供給されたペレツト状材料４はシリンダ１
の外側のヒータ５およびスクリユー２の回転によ
り軟化して押出機の先端に送り出され、ヘツドに
装着したダイスにより所定の形状に成形されて押
出される。なお図中、符号６と７はそれぞれブレ
ーカプレートおよびダイスである。 In such a conventional extruder, the plastic material is processed by a hopper 3 installed directly above the screw 2 in the cylinder 1, and the pellet-like material 4 fed from the hopper 3 is fed into the cylinder 1.
The material is softened by the rotation of the outer heater 5 and the screw 2, and sent to the tip of the extruder, where it is molded into a predetermined shape and extruded by a die attached to the head. In addition, in the figure, numerals 6 and 7 are a breaker plate and a die, respectively.
一方、このようなプラスチツク専用の押出機の
ほかに、第５図に示すように、公知のゴム状材料
用の押出機にホツパを取付けてゴムとプラスチツ
クの両方を押出できる兼用型の押出機も知られて
いる。なお、以下説明する図において、第４図と
共通する部分には同一符号を付して重複する説明
を省略する。 On the other hand, in addition to such an extruder exclusively for plastics, there is also a dual-purpose extruder that can extrude both rubber and plastic by attaching a hopper to a known extruder for rubber-like materials, as shown in Figure 5. Are known. In the figures described below, parts common to those in FIG. 4 are designated by the same reference numerals and redundant explanations will be omitted.
このような兼用型の押出機においては、プラス
チツク材料のようにペレツト状のものはホツパ３
から供給され、ゴム材料のようにリボン状のもの
はフイードローラ８の回転によつて供給するよう
になつている。 In such a dual-purpose extruder, pellet-like materials such as plastic materials are processed through the hopper 3.
A ribbon-like material such as a rubber material is supplied by rotation of a feed roller 8.
ところで近年、ゴムとプラスチツクの中間的性
質を有する、たとえば軟質ポリエチレンと呼ばれ
るエチレン酢酸ビニル共重合体（以下EVAと称
する）や高エチレンエラストマーあるいはこれら
と従来のエラストマーとのブレンド等の新しい材
料が出現している。 However, in recent years, new materials have appeared that have properties intermediate between rubber and plastic, such as ethylene vinyl acetate copolymer (hereinafter referred to as EVA) called soft polyethylene, high ethylene elastomer, or blends of these and conventional elastomers. ing.
これらの材料はペレツト状に加工することがで
きるので、従来より押出機のホツパから材料を供
給してきた。ところが、これらの材料は軟化温度
が低いため、押出機のシリンダからの熱伝導や摩
擦熱によりペレツトどうしが粘着してブロツク状
となりやすく、その結果スクリユーの溝の中に入
らないでペレツトの正常な流れが阻害され、製品
外径が変動するという問題があつた。また兼用型
の押出機の場合、フイードローラとスクリユー間
で押しつぶされてよりブロツク状になりやすいと
いう問題があつた。 Since these materials can be processed into pellets, they have traditionally been fed from the hopper of an extruder. However, since these materials have a low softening temperature, the pellets tend to stick to each other due to heat conduction from the extruder cylinder and frictional heat, forming a block shape. There was a problem that the flow was obstructed and the outer diameter of the product fluctuated. In addition, in the case of a dual-purpose extruder, there was a problem in that the material was more likely to be crushed between the feed roller and the screw, resulting in more block-like shapes.
［考案の目的］
本考案はこのような問題に対処してなされたも
ので、通常のペレツト状材料、軟化温度の低いペ
レツト状材料、そしてゴム材料を、それぞれ良好
に押出成形しうる押出機を提供することを目的と
する。[Purpose of the invention] The present invention was made in response to these problems, and it is an extruder that can successfully extrude ordinary pellet-like materials, pellet-like materials with a low softening temperature, and rubber materials. The purpose is to provide.
［考案の概要］
すなわち本考案は、ホツパとスクリユー間の材
料通路を開口させてなる押出機において、前記開
口部に着脱自在とされた連続したゴム素材を供給
するフイードローラと、前記開口部に着脱自在と
され、ホツパより供給されるペレツト状材料をス
クリユー側へと案内する傾斜した案内面を有し、
かつこの案内面の内側に冷媒通路を設けてなる冷
却用ガイドとを備えることにより、通常のペレツ
ト状材料、軟化温度の低いペレツト状材料、およ
びゴム材料を、それぞれ良好に押出成形しうるよ
うにしたものである。[Summary of the invention] In other words, the present invention provides an extruder in which a material passage between a hopper and a screw is opened, and a feed roller that supplies a continuous rubber material that can be attached and detached to the opening, and a feed roller that can be attached and detached to the opening. It has an inclined guide surface that guides the pellet-like material supplied from the hopper to the screw side,
In addition, by providing a cooling guide with a refrigerant passage provided inside this guide surface, ordinary pellet-like materials, pellet-like materials with a low softening temperature, and rubber materials can be extruded well. This is what I did.
［考案の実施例］
次に本考案の実施例について図面を用いて説明
する。第１図は本考案の一実施例の押出機の一使
用態様を示す横断面図、第２図はその要部を断面
で示す斜視図である。[Embodiments of the invention] Next, embodiments of the invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing one mode of use of an extruder according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a main part thereof in cross section.
これらの図において、３はペレツト状材料４を
シリンダ１内に供給するホツパであり、スクリユ
ー２の鉛直上方より変位した位置に配置されてい
る。このホツパ３下方のシリンダ１への材料通路
となる部分は開口しており、この開口部にホツパ
３からのペレツト状材料４を受けてスクリユー２
へと導く傾斜板９を備えたベンチ状の冷却用ガイ
ド１０が装着されている。この冷却用ガイド１０
は、第３図にも示すように傾斜板９内を冷却用パ
イプ１１が通つており、水を流すことにより傾斜
板９を冷却して傾斜板９に接するペレツト状材料
４の軟化を防止することができるようになつてい
る。また、この冷却用ガイド１０は着脱自在に構
成されており、これを取り外した開口部には、着
脱自在なゴム用フイードローラ（第５図参照）が
装着される。 In these figures, reference numeral 3 denotes a hopper for feeding pellet-like material 4 into the cylinder 1, and is located at a position displaced from vertically above the screw 2. The part below this hopper 3 that becomes the material passage to the cylinder 1 is open, and the pellet-shaped material 4 from the hopper 3 is received in this opening and the screw 2
A bench-shaped cooling guide 10 equipped with an inclined plate 9 that guides the air is attached. This cooling guide 10
As shown in FIG. 3, a cooling pipe 11 passes through the inclined plate 9, and the inclined plate 9 is cooled by flowing water to prevent the pellet-like material 4 in contact with the inclined plate 9 from softening. It is now possible to do so. The cooling guide 10 is configured to be detachable, and a detachable rubber feed roller (see FIG. 5) is attached to the opening from which it is removed.
このように構成された押出機では、押出材料の
種類に応じて、冷却用ガイド１０とゴム用フイー
ドローラが選択されて使用される。 In the extruder configured in this manner, the cooling guide 10 and the rubber feed roller are selected and used depending on the type of extrusion material.
すなわち、軟化温度の低いペレツト状材料の押
出しには、開口部に冷却用ガイド１０を装着する
とともに傾斜板９内の冷却用パイプ１１に水を流
すようにする。この場合、ホツパ３から自重によ
り落下したペレツト状材料４は傾斜板９で受け止
められるが、この時冷却されるので、ペレツトど
うしが粘着することなく傾斜板９上を滑り落ちて
スクリユー２へ供給され、正常に送出されてい
く。なおホツパ３のシリンダ１への取付部分にホ
ツパ冷却部１２を設けるならより一層ペレツトの
軟化を防止することができる。 That is, to extrude a pellet-like material having a low softening temperature, a cooling guide 10 is attached to the opening and water is allowed to flow through a cooling pipe 11 in the inclined plate 9. In this case, the pellet-like material 4 that has fallen from the hopper 3 under its own weight is caught by the inclined plate 9, but since it is cooled at this time, the pellets slide down the inclined plate 9 without sticking to each other and are supplied to the screw 2. , will be sent normally. Note that if the hopper cooling section 12 is provided at the part where the hopper 3 is attached to the cylinder 1, softening of the pellets can be further prevented.
ちなみに酢酸ビニル含有量30％のEVAと塩素
含有量40％の塩素化ポリエチレンとを１：１の比
率で混合し、さらに充填剤と安定剤とを添加混合
したコンパウンドを一辺が５mmの立方体になるよ
う裁断したペレツト状材料をこの実施例の押出機
のホツパに入れて押出し、絶縁厚２mmの絶縁電線
14mm2を７時間かけて4000ｍ製造したところ、押出
し作業中に供給されたペレツト材料にブロツクの
発生はまつたく見られなかつた。また押出機の飢
餓現象の有無を知るためその駆動電流を測定した
ところ電流変動は±アンペア、外径変動は8.9〜
9.1mmであつた。 By the way, EVA with a vinyl acetate content of 30% and chlorinated polyethylene with a chlorine content of 40% are mixed in a 1:1 ratio, and a filler and a stabilizer are added and mixed to form a compound with a side of 5 mm. The pellet-like material cut into pieces was put into the hopper of the extruder of this example and extruded to form an insulated wire with an insulation thickness of 2 mm.
When 4000 m of 14 mm 2 was produced over 7 hours, no blocks were observed in the pellet material fed during extrusion. In addition, in order to find out whether there is a starvation phenomenon in the extruder, we measured the drive current, and the current fluctuation was ± ampere, and the outer diameter fluctuation was 8.9 ~
It was 9.1mm.
一方、従来の押出機を使用して実施例と同様の
材料を押出したところ押出開始後10分経過後にペ
レツト材料にブロツクの発生が見られた。また押
出機電流変動は±７アンペア、外径変動は8.1〜
9.1mmであつた。 On the other hand, when the same material as in Example was extruded using a conventional extruder, blocks were observed in the pellet material 10 minutes after the start of extrusion. Also, the extruder current fluctuation is ±7 amperes, and the outer diameter fluctuation is 8.1~
It was 9.1mm.
また、ゴム材料の押出しには、上記冷却用ガイ
ド１０を取り外してゴム用フイードローラを装着
すればよく、ゴム材料をフイードローラにより連
続的にスクリユーへと供給することができる。 Further, in order to extrude the rubber material, it is sufficient to remove the cooling guide 10 and attach a rubber feed roller, and the rubber material can be continuously fed to the screw by the feed roller.
さらに、ポリエチレン等の従来の通常のペレツ
ト状材料を押出す場合には、ゴム用フイードロー
ラを装着するか、あるいは、冷却用ガイド１０を
装着し冷却用の水を流さない状態で押出しすれば
よい。 Further, when extruding a conventional pellet-like material such as polyethylene, a rubber feed roller or a cooling guide 10 may be installed and extrusion may be performed without flowing cooling water.
［考案の効果］
以上説明したように本考案の押出機によれば、
一基の押出機で、通常のペレツト状材料、軟化温
度の低いペレツト状材料、そしてゴム材料と、そ
れぞれの性状に合つた供給により、品質、外形の
安定した製品を得ることができる。[Effects of the invention] As explained above, according to the extruder of the invention,
A single extruder can supply products with stable quality and external shape by feeding ordinary pellet materials, pellet materials with a low softening temperature, and rubber materials according to their respective properties.
第１図は本考案の一実施例の押出機を示す横断
面図、第２図はその要部を断面で示す斜視図、第
３図は本考案の冷却用ガイドの一例を示す斜視
図、第４図はプラスチツク専用押出機の例を示す
縦断面図、第５図はゴム・プラスチツク兼用型の
押出機の例を示す横断面図である。
１……シリンダ、２……スクリユー、３……ホ
ツパ、４……ペレツト状材料、８……ゴム用フイ
ードローラ、９……傾斜板、１０……冷却用ガイ
ド。
FIG. 1 is a cross-sectional view showing an extruder according to an embodiment of the present invention, FIG. 2 is a perspective view showing a main part thereof in cross section, and FIG. 3 is a perspective view showing an example of a cooling guide of the present invention. FIG. 4 is a longitudinal cross-sectional view showing an example of an extruder exclusively for plastics, and FIG. 5 is a cross-sectional view showing an example of an extruder for both rubber and plastics. DESCRIPTION OF SYMBOLS 1... Cylinder, 2... Screw, 3... Hopper, 4... Pellet-like material, 8... Rubber feed roller, 9... Inclined plate, 10... Cooling guide.
Claims (1)
なる押出機において、前記開口部に着脱自在とさ
れた連続したゴム素材を供給するフイードローラ
と、前記開口部に着脱自在とされ、ホツパより供
給されるペレツト状材料をスクリユー側へと案内
する傾斜した案内面を有し、かつこの案内面の内
側に冷媒通路を設けてなる冷却用ガイドとを備え
たことを特徴とする押出機。 In an extruder in which a material passage is opened between a hopper and a screw, there is provided a feed roller that is removably attached to the opening and feeds a continuous rubber material, and a feed roller that is removably attached to the opening that feeds a continuous rubber material, and a feed roller that is removably attached to the opening and that feeds pellets from the hopper. 1. An extruder comprising a cooling guide having an inclined guide surface for guiding a shaped material toward a screw, and a cooling guide provided with a refrigerant passage inside the guide surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985053309U JPH0436256Y2 (en) | 1985-04-10 | 1985-04-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985053309U JPH0436256Y2 (en) | 1985-04-10 | 1985-04-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61168913U JPS61168913U (en) | 1986-10-20 |
| JPH0436256Y2 true JPH0436256Y2 (en) | 1992-08-27 |
Family
ID=30574048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985053309U Expired JPH0436256Y2 (en) | 1985-04-10 | 1985-04-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0436256Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2509107B2 (en) * | 1991-06-14 | 1996-06-19 | レオン自動機株式会社 | Method and apparatus for supplying plastic oil and fat |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5938040A (en) * | 1982-07-22 | 1984-03-01 | ウインドメ−レル・ウント・ヘルシエル | Funnel member for single thread screw type extruder |
| JPS59142864A (en) * | 1983-01-31 | 1984-08-16 | モンサント コンパニ− | Apparatus for intermittently supplying molten thermoplastic resin |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS546780Y2 (en) * | 1974-01-29 | 1979-03-30 |
-
1985
- 1985-04-10 JP JP1985053309U patent/JPH0436256Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5938040A (en) * | 1982-07-22 | 1984-03-01 | ウインドメ−レル・ウント・ヘルシエル | Funnel member for single thread screw type extruder |
| JPS59142864A (en) * | 1983-01-31 | 1984-08-16 | モンサント コンパニ− | Apparatus for intermittently supplying molten thermoplastic resin |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61168913U (en) | 1986-10-20 |
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