JPS6092824A - Volatile content remover - Google Patents
Volatile content removerInfo
- Publication number
- JPS6092824A JPS6092824A JP58201422A JP20142283A JPS6092824A JP S6092824 A JPS6092824 A JP S6092824A JP 58201422 A JP58201422 A JP 58201422A JP 20142283 A JP20142283 A JP 20142283A JP S6092824 A JPS6092824 A JP S6092824A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- cylinder
- polymer
- volatile matter
- screen
- 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
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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/76—Venting, drying means; Degassing means
- B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
- B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
- B29C48/767—Venting, drying means; Degassing means in the extruder apparatus in screw extruders through a degassing opening of a barrel
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/76—Venting, drying means; Degassing means
- B29C48/763—Vent constructions, e.g. venting means avoiding melt escape
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
〔発明の目的〕
本発明は押出機ｆおける多量の水分や余分な揮発分等（
以下単に揮発分等という）の除去するためのベントスタ
ッファ等の揮発分等の除去装置に関する。
〔従来技術〕
揮発分等を含有するポリマーを押出成形する時は通常、
シリンダの途中に開口部を設けて減圧することにより、
前記揮発分箸全除去するベント式押出機では溶融ポリマ
ーが発泡１，てし７まい、ベントロを’Ｉｌｒでベント
効果を無くして１．まりという欠点があるため、発泡１
たポリマーヲ押出機内へ強制的に押１，戻１，、揮発分
等のみを除去するペントスフリファ等の揮発分除去装置
が使用されている。この種の装置ｆ第１図ない〔７第３
図に示すように単軸又は２軸のスクリュ１を電動機８等
により回転自在に挿入し７たシリンダ２ｆｔ押出機３の
主シリンダ４の開口部５に取付け、前記シリンダ２に設
けた開口部６から揮発分等を減圧によに、あるいは大気
に排出するようになっている。・〔従来装置の問題点〕
しか１、この装ｍは主スクリユ７の溝内を通過するポリ
マーの揮発分等の含有量、溶融粘度およびポリマー温度
等の関係で、その発泡が急激に起きた場合、発生ガスの
流速は非常に太きぐなり、発泡によってちぎれたポリマ
ーが発生ガスと一緒にスクリュ１内を逆流し開口部６へ
留ったり、減圧用の配管等に詰ったりする結果、滞留ポ
リマーが劣化され、この劣化されたポリマーが再びスク
リュ１により主スクリユ７内へ戻され、製品物性に悪影
響を与える欠点があった。
、〔発明の構成〕
以上のような従来装置にある欠点を除去し、ペントスタ
ッファの開口部に飛び出して来るポリマーとガスを分離
し、ガスのみを排出するとともにポリマー′を劣化しな
い前に主スクリー内へ戻すために単軸又は２軸のスクリ
ーを電動機等の駆動装置により回転自在に挿入したシリ
ンダを押出機の主シリンダの開口部に取付け、前記押出
機に取付たシリンダの少くとも１個以上設けた開口部に
スクリュとの間に可能な限りデッドスペースを少くする
とともに、前記シリンダ内の揮発分等のみ通過させ、ポ
リマーは通過させな贋ようにされたスクリーンを設けた
ものである。
〔実施例〕
本発明の１実施例′Ｉｒ−第４図ない[Object of the invention] The present invention aims to eliminate large amounts of moisture, excess volatile matter, etc. (
The present invention relates to a device for removing volatile matter, such as a vent stuffer, for removing volatile matter (hereinafter simply referred to as volatile matter, etc.). [Prior art] When extruding polymers containing volatile components, etc.,
By creating an opening in the middle of the cylinder to reduce pressure,
In the vent type extruder which completely removes volatile components, the molten polymer foams 1.7, and the venting effect is eliminated by using 1. Foaming 1
A device for removing volatile matter, such as a pentos fluffer, is used to forcibly push the polymer into the extruder and return it to remove only the volatile matter. This kind of equipment f Figure 1 does not exist [7 Figure 3
As shown in the figure, a single or twin screw 1 is rotatably inserted by an electric motor 8 or the like and attached to an opening 5 of a main cylinder 4 of a 2ft cylinder extruder 3, and an opening 6 provided in the cylinder 2. Volatile matter, etc. is discharged to the atmosphere under reduced pressure.・[Problems with conventional equipment] However, 1. With this system, foaming occurred rapidly due to the content of volatile matter, melt viscosity, polymer temperature, etc. of the polymer passing through the groove of the main screw 7. In this case, the flow velocity of the generated gas becomes extremely steep, and the polymer torn off by foaming flows back through the screw 1 together with the generated gas and stays in the opening 6 or clogs the pressure reduction piping, etc., resulting in stagnation. The polymer is degraded and the degraded polymer is returned to the main screw 7 by the screw 1, which has the disadvantage of adversely affecting the physical properties of the product. , [Structure of the Invention] The above-mentioned drawbacks of the conventional device are eliminated, the polymer and gas that fly out into the opening of the pento stuffer are separated, only the gas is discharged, and the polymer is removed before it deteriorates. At least one of the cylinders attached to the extruder is attached to the opening of the main cylinder of the extruder, in which a single or two-axis scree is rotatably inserted by a drive device such as an electric motor in order to return the scree into the scree. The dead space between the opening and the screw is reduced as much as possible, and a screen is provided that allows only the volatile matter in the cylinder to pass through, but not the polymer. [Example] One embodiment of the present invention'Ir-Figure 4
【、第５図により
説明すると、１１はペントスタッファでシリンダ１２内
に単軸スクリュ１３が電動機１４により駆動系１５を介
して回転自在に挿着されている。
前記シリンダ１２にはスフＩＪ−１３が一部露出するよ
うな開口部である切欠き部１６が設けてあり、この切欠
き部１６にはスクリュ１３の露出部全完全に覆いかつシ
リンダ１２の内径面とはソ同−面となるスクリーン１７
が設けてあり、スクリュ１３との間にポリマー等が滞留
しないように、デッドスペースが可能な限り出来ないよ
うにしである。前記スクリーン１７は揮発分等のガスは
通過出来るが、ポリマー等は通過が出来ないようになっ
ている。
大気開放式は以上に述たような構成で良いが、真空ポン
プ等により減圧する場合には、このスクリーン】７の周
囲を気密に保つための気密容器１８を設け、図示してな
い真空ポンプ等により排出管１９を介して揮発分等を矢
印ａ方向に吸引するよう妃なっている。
〔発明の効果〕
本発明に以上説明したような構成となっているので、ガ
ス等の揮発分等のみ通過することが出来、発泡によって
ちぎれたポリマーはスクリーンヲ通過することが出来ず
直ちにスクリュ１３により再び押出機（図示１−でなめ
）内へ押戻されるようになっている。
前述した実施例は単軸スクリーで説明したが、＠７図お
よび第８図のように二軸のスクリュを用いても良い。[To explain with reference to FIG. 5, reference numeral 11 denotes a pent stuffer, and a single shaft screw 13 is rotatably inserted into a cylinder 12 via a drive system 15 by an electric motor 14. The cylinder 12 is provided with a notch 16 which is an opening through which the Sufu IJ-13 is partially exposed. Screen 17 which is the same plane as the plane
is provided to prevent dead space from being created as much as possible so that polymers and the like do not accumulate between the screw 13 and the screw 13. The screen 17 allows gases such as volatile matter to pass through, but polymers and the like cannot pass therethrough. The above-mentioned configuration may be used for the open atmosphere type, but if the pressure is to be reduced using a vacuum pump, etc., an airtight container 18 is provided to keep the area around the screen 7 airtight, and a vacuum pump, etc. (not shown) is provided to keep the area around the screen 7 airtight. The exhaust pipe 19 is designed to suck volatile matter and the like in the direction of the arrow a. [Effects of the Invention] Since the present invention has the configuration as described above, only volatile components such as gas can pass through, and the polymer torn off by foaming cannot pass through the screen and is immediately removed from the screw 13. It is then pushed back into the extruder (indicated by 1- in the figure) again. Although the above-mentioned embodiment has been explained using a single-screw, a twin-screw may be used as shown in Fig. 7 and Fig. 8.
第１図は従来のペントスタッファの概略図。第２図は第
１図における断面Ｉ−Ｉ図、第３図は他の従来装置の図
で２軸スクリユの場合を示す図。
第４図は本発明にょる１実施例を示す図。第５図は第４
図における断面■−■図Ｕ第６図は本発明による他の実
施例を示す図。第７図および第８図は本発明によるさら
に他の実施例を示す図で二軸スクリュを使用した場合の
図。
１２・・・シリンダ、１３・・・スクリュ、１６．、、
切欠き部、１７・・・スクリーン、１８・・気密容器。
出願人 東芝機械株式会社FIG. 1 is a schematic diagram of a conventional pent stuffer. FIG. 2 is a cross-sectional view taken along line II in FIG. 1, and FIG. 3 is a diagram of another conventional device, showing the case of a two-shaft screw. FIG. 4 is a diagram showing one embodiment of the present invention. Figure 5 is the 4th
6 is a diagram illustrating another embodiment of the present invention. FIGS. 7 and 8 are diagrams showing still another embodiment of the present invention, in which a twin screw is used. 12...Cylinder, 13...Screw, 16. ,,
Notch portion, 17... Screen, 18... Airtight container. Applicant: Toshiba Machine Co., Ltd.
Claims (1)
挿着したシリンダを押出機の主シリンダ開口部に取付け
、前記主シリンダ開口部ｆｆ取付たシリンダに少くとも
１個所以上に設けた開口部ｆ前記スクリュとの間に可能
な限り小さいデッドスペースを構成するとともｆ前記シ
リンｉ゛内の水分や揮発分等のみ通過する工うｖ １−
たスクリーン？設けたことを特徴とする揮発分等の除去
躾ｉｉ。 ２、前記スクリーンの周囲を密閉１．た気密構造とな（
７、減圧可能としたことを特徴とする特許許請求範囲第
１項記載の揮発分等の除去装置。[Scope of Claims] 1. A cylinder in which a single-shaft or two-shaft screw is rotatably inserted by a drive device is attached to the main cylinder opening of the extruder, and at least one location is attached to the cylinder to which the main cylinder opening ff is attached. A dead space as small as possible is formed between the opening f and the screw provided above, and only moisture, volatile matter, etc. in the cylinder i can pass through.
Screen? A method for removing volatile matter, etc. ii. 2. Seal the area around the screen 1. It has an airtight structure (
7. The device for removing volatile matter, etc. according to claim 1, which is capable of reducing the pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58201422A JPS6092824A (en) | 1983-10-27 | 1983-10-27 | Volatile content remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58201422A JPS6092824A (en) | 1983-10-27 | 1983-10-27 | Volatile content remover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6092824A true JPS6092824A (en) | 1985-05-24 |
| JPH0357850B2 JPH0357850B2 (en) | 1991-09-03 |
Family
ID=16440812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58201422A Granted JPS6092824A (en) | 1983-10-27 | 1983-10-27 | Volatile content remover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6092824A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1400337A1 (en) * | 2002-09-20 | 2004-03-24 | Basf Aktiengesellschaft | Apparatus for extrusion of thermoplastics |
| JP2007290200A (en) * | 2006-04-24 | 2007-11-08 | Meino:Kk | Pelletizer for scrapped foamed polystyrene |
| EP2946904A1 (en) * | 2014-05-22 | 2015-11-25 | Coperion GmbH | Device and method for degassing material to be processed |
| EP3253554B1 (en) * | 2015-02-06 | 2022-03-09 | ARLANXEO Deutschland GmbH | Stuffing screw |
-
1983
- 1983-10-27 JP JP58201422A patent/JPS6092824A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1400337A1 (en) * | 2002-09-20 | 2004-03-24 | Basf Aktiengesellschaft | Apparatus for extrusion of thermoplastics |
| WO2004028781A1 (en) * | 2002-09-20 | 2004-04-08 | Basf Aktiengesellschaft | Device for extruding thermoplasts |
| JP2007290200A (en) * | 2006-04-24 | 2007-11-08 | Meino:Kk | Pelletizer for scrapped foamed polystyrene |
| EP2946904A1 (en) * | 2014-05-22 | 2015-11-25 | Coperion GmbH | Device and method for degassing material to be processed |
| JP2015221565A (en) * | 2014-05-22 | 2015-12-10 | コペリオン ゲーエムベーハー | Device and method for degassing material to be processed |
| EP3253554B1 (en) * | 2015-02-06 | 2022-03-09 | ARLANXEO Deutschland GmbH | Stuffing screw |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0357850B2 (en) | 1991-09-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |