JPS62273821A - Method and apparatus for removing gaseous and water contents in viscose material in screw extruder - Google Patents
Method and apparatus for removing gaseous and water contents in viscose material in screw extruderInfo
- Publication number
- JPS62273821A JPS62273821A JP61118960A JP11896086A JPS62273821A JP S62273821 A JPS62273821 A JP S62273821A JP 61118960 A JP61118960 A JP 61118960A JP 11896086 A JP11896086 A JP 11896086A JP S62273821 A JPS62273821 A JP S62273821A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- pin member
- viscous material
- suction
- gas
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims description 7
- 229920000297 Rayon Polymers 0.000 title abstract 2
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000009835 boiling Methods 0.000 claims abstract description 5
- 239000011345 viscous material Substances 0.000 claims description 44
- 229920001971 elastomer Polymers 0.000 claims description 32
- 239000005060 rubber Substances 0.000 claims description 32
- 238000004898 kneading Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011295 pitch Substances 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 5
- 238000002513 implantation Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 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
- 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
【発明の詳細な説明】
（産業上の利用分野）
この発明は、天然ゴム、合成ゴム等のゴム材料や合成樹
脂材料（以下、粘性材料という）を混合して均一化し、
押し出すためのスクリュー押出機において、スクリュー
により送給中の粘性材料中のガス分や水分を除去する方
法とその装置に関するものである。Detailed Description of the Invention (Industrial Application Field) This invention involves mixing and homogenizing rubber materials such as natural rubber and synthetic rubber and synthetic resin materials (hereinafter referred to as viscous materials).
The present invention relates to a method and apparatus for removing gas and moisture from a viscous material being fed by a screw in a screw extruder for extrusion.
（従来の技術）
混練した粘性材料を加硫する場合に、粘性材料中のガス
分や水分の含有量が多い時には、その膨張を防ぐために
粘性材料をかなり高い圧力で加圧する必要がある。そこ
で、粘性材料をスクリュー押出機に投入してスクリュー
により送給する間に、予め粘性材料中に含まれるガス分
や水分を除去することが行われている。(Prior Art) When vulcanizing a kneaded viscous material, if the viscous material contains a large amount of gas or water, it is necessary to pressurize the viscous material at a fairly high pressure to prevent expansion. Therefore, gas and moisture contained in the viscous material are removed in advance before the viscous material is introduced into a screw extruder and fed by the screw.
しかし、従来より行われている粘性材料中のガス分や水
分を除去する方法は、第８図に示すように、スクリュー
押出機の円筒状ケーシング４１適所の上面に、スクリュ
ー４２周囲の粘性材料通路内に連通ずる貫通口４３を穿
設し、この貫通口４３に接続パイプを介して吸引装置を
接続し、該貫通口４３から吸引することにより粘性材料
中のガス分や水分を除去するものであった。However, in the conventional method of removing gas and moisture from viscous materials, as shown in FIG. A through hole 43 that communicates with the inside is bored, a suction device is connected to this through hole 43 via a connecting pipe, and gas and moisture in the viscous material are removed by suctioning from the through hole 43. there were.
したがって、上記した従来の方法では、送給される粘性
材料の表面部分に含有されているガス分や水分しか除去
することができないために除去率が低く、しかも、貫通
口からの吸引力を高くし過ぎると、粘性材料自体が吸引
排出される震れがあるため、吸引力に制限があり、また
、同様の理由により貫通口の個数もせいぜい一個乃至２
個程度しか設けられなかった。Therefore, in the conventional method described above, the removal rate is low because only the gas and moisture contained in the surface portion of the viscous material being fed can be removed, and the suction force from the through hole is high. If it is too much, the viscous material itself will be sucked out and vibrated, which will limit the suction force, and for the same reason, the number of through holes will be one to two at most.
Only a few were set up.
また、近年、装置本体の混練領域における円筒状ケーシ
ング内に、スクリュー回転軸を配装し、該円筒状ケーシ
ング内周面より粘性材料通路内に突出する半径方向のピ
ン部材を、円周方向及び軸方向に間隔を設けて多数配設
すると共に、前記スクリューに該ピン部材の突出部が通
過可能な切り欠きを開設した押出装置において、各ピン
部材がケーシング周壁及び該ケーシング内の加熱冷却通
路を貫通した構造のもの（特公昭５６−５３５００号）
が一般に普及しつつあり、更に、最近、前記円筒状ケー
シングを内周側のピン部材植設スリーブと加熱冷却通路
を備えた外周側のケーシング本体から構成し、前記ピン
部材植設スリーブ及びケーシング本体をそれぞれ円周方
向に少なくとも二分割し、該ケーシング本体の分割部位
付近に前記分割されたスリーブ及びケーシング本体をそ
れぞれ一体的に結合可能な締付は機構を配備した構造の
もの（特願昭６１−７６３４７号）が提案されている。In addition, in recent years, a screw rotating shaft has been installed in a cylindrical casing in the kneading area of the apparatus main body, and a radial pin member that protrudes from the inner circumferential surface of the cylindrical casing into the viscous material passage is arranged in the circumferential direction and In an extrusion device in which a large number of pin members are arranged at intervals in the axial direction, and a notch is formed in the screw through which the protrusion of the pin member can pass, each pin member connects the casing peripheral wall and the heating and cooling passage within the casing. Those with a penetrating structure (Special Publication No. 56-53500)
is becoming popular in general, and recently, the cylindrical casing is composed of an inner pin member implanted sleeve and an outer peripheral side casing body provided with a heating and cooling passage, and the pin member implanted sleeve and the casing body are The sleeve is divided into at least two parts in the circumferential direction, and a tightening mechanism is provided near the divided portion of the casing body to integrally connect the divided sleeve and the casing body. -76347) has been proposed.
これらは、いずれも一般にピン押出機と呼ばれている。All of these are generally called pin extruders.
（発明が解決しようとする問題点）
ところで、上記の各ピン押出機は、無ピンタイプの一般
的なスクリュー押出機に比べて、内面圧力が低く、この
ため、粘性材料中に含まれるガス分或いは水分を、含有
したままで機外に押出してしまうので、この種ピン押出
機において粘性材料中のガス分や水分を除去する適当な
解決手段が求められていた。(Problems to be Solved by the Invention) By the way, each of the above-mentioned pin extruders has a lower internal pressure than a general pinless type screw extruder, and therefore the gas content contained in the viscous material is reduced. Alternatively, the moisture contained in the material is extruded out of the machine, so there has been a need for a suitable solution for removing gas and moisture from the viscous material in this type of pin extruder.
この発明は上述の要望に答えると共に、上記した従来の
ガス分及び水分除去方法に比べてそれらの除去率が極め
て高い、スクリュー押出機における粘性材料中のガス分
及び水分を除去する方法とその装置を提供しようとする
ものである。The present invention meets the above-mentioned needs and provides a method and apparatus for removing gas and moisture from a viscous material in a screw extruder, which has an extremely high removal rate compared to the conventional gas and moisture removal methods described above. This is what we are trying to provide.
（問題点を解決するための手段）
上記した目的を達成するための本発明の要旨とするとこ
ろは、スクリュー押出機内の粘性材料送給通路内に突出
させた吸引用中空ピン部材により、ピン押出機のピン部
材の下流側すなわち粘性材料の送給流れの下流側にガス
分が溜まり易い点を利用して、中空ピン部材の下流側に
臨ませた吸引口からガス分を吸引して機外へ排出除去す
るようにしたことである。また、粘性材料の混練領域に
おいて、粘性材料を積極的に加圧或いは加熱してその温
度を通常よりも高くすることにより粘性材料中の水分が
蒸発し易い状態にし、次に、積極的な加圧或いは加熱を
中止し、真空ポンプ等により粘性材料中のガス分を吸引
除去することによって圧力を低下させ、水の沸点を引き
下げることにより粘性材料中の水分が蒸発ガス化し易い
状況を作り、効率良く機外に排出除去するようにしたこ
とである。(Means for Solving the Problems) The gist of the present invention for achieving the above-mentioned object is to extrude the pin by a suction hollow pin member protruding into the viscous material feeding passage in the screw extruder. Taking advantage of the fact that gas tends to accumulate on the downstream side of the pin member of the machine, that is, the downstream side of the feed flow of viscous material, the gas is sucked out from the suction port facing the downstream side of the hollow pin member and removed from the machine. This was done so that it could be discharged and removed. In addition, in the kneading area of the viscous material, the viscous material is actively pressurized or heated to make its temperature higher than normal to make it easier for water in the viscous material to evaporate, and then the viscous material is actively pressurized or heated. The pressure or heating is stopped, and the gas content in the viscous material is suctioned and removed using a vacuum pump, etc. to lower the pressure and lower the boiling point of water, creating a situation in which the water in the viscous material can easily evaporate into gas, increasing efficiency. This was done in such a way that it was properly discharged and removed outside the machine.
（作 用）
本発明の方法又は装置によれば、スクリュー押出機の後
部投入口より供給された粘性材料は、スクリューにより
推進力が与えられて前方へ送られ、一定距離進んだ段階
で、加圧され或いは加熱されることにより粘性材料の温
度が上昇し、次に、吸引口を粘性材料の送給流れの下流
側に向けた吸引用中空ピン部材によって粘性材料の内部
より吸引し、粘性材料中のガス分が吸引されることによ
りケーシング内の圧力が低下し水の沸点が下がって粘性
材料中の水分が蒸発ガス化され、このガス分が吸引口よ
り吸引除去され、結果的に粘性材料に含有されているガ
ス分と水分が除去されるものである。(Function) According to the method or apparatus of the present invention, the viscous material supplied from the rear input port of the screw extruder is given a driving force by the screw and sent forward, and when it has traveled a certain distance, it is processed. The temperature of the viscous material rises by being pressurized or heated, and then the viscous material is suctioned from inside the viscous material by a suction hollow pin member whose suction port is directed downstream of the feed flow of the viscous material. By suctioning the gas inside the casing, the pressure inside the casing decreases and the boiling point of the water drops, causing the moisture in the viscous material to evaporate and become gas.This gas is suctioned and removed from the suction port, and as a result, the viscous material The gas and moisture contained in the water are removed.
（実施例）
以下、この発明の実施例を図面に基づいて詳細に説明す
る。(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.
第１図はゴム材料等の混練用ピン押出機の全体縦断面図
で、図において、押出機１はゴム材料の投入部２と、ゴ
ム材料の混合部としての主要部をなす本体３と、ゴム材
料をヘッド部（図示せず）へ押し出す先端部４からなる
。FIG. 1 is an overall vertical cross-sectional view of a pin extruder for kneading rubber materials, etc. In the figure, the extruder 1 includes a rubber material input section 2, a main body 3 which is the main part as a rubber material mixing section, It consists of a tip 4 which extrudes the rubber material into a head (not shown).
投入部２１本体３および先端部４は、それぞれ円筒状ケ
ーシング２ａ、３ａ、４ａを具備し、各ケーシング２ａ
＋３ａ、４ａは一連に連結され、これらのケーシング２
ａ、３ａ、４ａ内に回転軸部材５が回動自在に装填され
ている。回転軸部材５の周囲には、スクリュー６が全長
に亙り突設されているが、スクリュー６のピンチはゴム
材料の混練領域においてかなり小さくして、ゴム材料に
加圧力を与えてその温度を上昇させると同時に、ゴム材
料の混線作用が生じるようにしてる。また、本体３内の
スクリュー６は、長手方向に所要の間隔を設けて、円周
方向の切り欠き６ａが開設されている。投入部２のケー
シング２ａは、後端が閉塞され、−側部分にゴム材料の
投入口２ｂが開設されている。先端部４のケーシング４
ａは、前端が開口している。なお、投入口２ｂには、送
り込み装置２ｃが配備され、その上方にホッパー（図示
せず）が設置される。The main body 3 and the tip portion 4 of the input section 21 each include cylindrical casings 2a, 3a, and 4a, and each casing 2a
+3a and 4a are connected in series, and these casings 2
A rotary shaft member 5 is rotatably mounted inside the a, 3a, and 4a. A screw 6 is protruded along the entire length around the rotating shaft member 5, but the pinch of the screw 6 is made quite small in the kneading area of the rubber material to apply pressure to the rubber material and increase its temperature. At the same time, the crosstalk effect of the rubber material is created. Further, the screw 6 in the main body 3 has cutouts 6a in the circumferential direction at a required interval in the longitudinal direction. The rear end of the casing 2a of the input section 2 is closed, and a rubber material input port 2b is opened on the negative side. Casing 4 of tip 4
A has an open front end. Note that a feed device 2c is provided at the input port 2b, and a hopper (not shown) is installed above it.
本体３のケーシング３ａは、第２図に示すように、ピン
部材植設スリーブ３ｂとケーシング本体３ｃからなり、
両者３ｂ、３ｃはそれぞれ円周方向に二分割され、ピン
部材植設スリーブ３ｂは更に長手方向にも分割されて複
数の半円弧形リング３ｂ’ に形成されている。As shown in FIG. 2, the casing 3a of the main body 3 consists of a pin member implantation sleeve 3b and a casing main body 3c,
Both 3b and 3c are each divided into two in the circumferential direction, and the pin member implantation sleeve 3b is further divided in the longitudinal direction to form a plurality of semicircular arc-shaped rings 3b'.
前記各分割ケーシング本体３ｃ’の内部には、それぞれ
長手方向に加熱冷却用媒体通路３ｄが開設されており、
また、各分割ケーシング本体３ｃ’の両端部には保合部
３ｅがそれぞれ突設されている。そして、各係合部３ｅ
の両側方には、各分割ケーシング本体３ｃ’が一体に接
合された状態で、保合部３ｅに嵌合する嵌合溝７ａを設
けた締付は機構７が配備されており、各締付は機構７を
貫通する締付は用ネジ部材７ｂと該機構７に螺合する分
離用ネジ部材７ｃがその長手方向に亙り交互に装着され
、締付は用ネジ部材７ｂの一端部は前記下側の係合部３
ｅにねじ込まれ、分離用ネジ部材７Ｃの一端は前記下側
の保合部３ｅに当接させている。なお、３ｆはピン部材
植設スリーブ３ｂの位置決め部材で、ビン部材植設スリ
ーブ３ｂ及びケーシング本体３ｃに相対向して設けた位
置決め用溝３ｇに嵌挿される。A heating and cooling medium passage 3d is provided in the longitudinal direction inside each of the divided casing bodies 3c',
Furthermore, retaining portions 3e are provided in a protruding manner at both ends of each divided casing body 3c'. And each engaging portion 3e
A tightening mechanism 7 is disposed on both sides of each split casing body 3c' and has a fitting groove 7a that fits into the retaining portion 3e when each split casing body 3c' is integrally joined. A screw member 7b for tightening that penetrates the mechanism 7 and a screw member 7c for separation that is screwed into the mechanism 7 are installed alternately in the longitudinal direction, and one end of the screw member 7b for tightening is attached to the lower part of the screw member 7b for tightening. Side engaging part 3
e, and one end of the separation screw member 7C is brought into contact with the lower retaining portion 3e. In addition, 3f is a positioning member of the pin member implantation sleeve 3b, and is inserted into the positioning groove 3g provided opposite to the bottle member implantation sleeve 3b and the casing body 3c.
８は中実ピン部材で、前記各半円弧形リング３ｂ’にそ
の中心に向けて該リング３ｂ’ を貫通して穿設した挿
通孔３ｈに、前記ピン部材８が嵌挿され、本体３内のゴ
ム材料通路内に突出部が張出している。Reference numeral 8 designates a solid pin member, and the pin member 8 is fitted into an insertion hole 3h formed in each of the semicircular arc-shaped rings 3b' by penetrating the ring 3b' toward the center thereof. A protrusion protrudes into the rubber material passageway within.
９は第３図及び第４図に示すような側周壁の一方に吸引
口９°を開設した構造からなる吸引用中空ピン部材で、
この中空ピン部材９は吸引口９゛をゴム材料の送給流れ
の下流側に向けて、第２図に示すように前記した複数の
半円弧形リング３ｂ’の内周面に環状溝３１を形成する
と共に、半円弧形リング３ｂ’ の外周面から環状溝３
Ｉに連通ずる複数の吸引孔３ｊを間隔を設けて開設し、
各吸引孔３ｊに固着されている。なお、前記各ピン部材
８及び中空ピン部材９は、その突出部８ｂがスクリュー
６の円周方向の切り欠き６ａ内にくるように配置される
。そして、締付は機構７の−例外面より上側の分割ケー
シング本体３ｃ”の保合部３ｅ及び半円弧形リング３ｂ
’ を一連に貫通して前記環状溝３１に連通する連通孔
ｌＯを穿設し、連通孔１０の外端部に吸引装置（図示せ
ず）と接続するための接続パイプ１）の一端を取着する
。9 is a suction hollow pin member having a structure in which a suction port is opened at 9° on one side peripheral wall as shown in FIGS. 3 and 4;
This hollow pin member 9 has an annular groove 31 formed on the inner circumferential surface of the plurality of semicircular arc-shaped rings 3b', as shown in FIG. At the same time, an annular groove 3 is formed from the outer peripheral surface of the semicircular arc ring 3b'.
A plurality of suction holes 3j communicating with I are opened at intervals,
It is fixed to each suction hole 3j. The pin members 8 and the hollow pin members 9 are arranged such that their protruding portions 8b are located within the notches 6a of the screw 6 in the circumferential direction. Then, the tightening is performed on the retaining portion 3e of the split casing body 3c'' above the -exception surface of the mechanism 7 and the semicircular arc ring 3b.
A communication hole 1O is formed through the annular groove 31 in series, and one end of the connection pipe 1) for connecting to a suction device (not shown) is attached to the outer end of the communication hole 10. wear.
なお、前記中空ピン部材９が配備された領域におけるス
クリュー６のピンチは、ゴム材料に作用する圧縮作用が
できるだけ小さくなるように前記混練領域におけるスク
リュー６のピンチに比べてかなり大きくしておく。The pinch of the screw 6 in the region where the hollow pin member 9 is provided is made considerably larger than the pinch of the screw 6 in the kneading region so that the compressive action acting on the rubber material is as small as possible.
次に、上記した構成からなる実施例について、使用態様
を説明する。Next, the manner of use of the embodiment having the above-described configuration will be explained.
第１図において、投入口２ｂより投入部２内に送り込ま
れたゴム材料は、スクリュー６によりゴム材料通路を通
って前方の装置本体３内へ送られるが、スクリュー６の
ピッチは前方の混練領域でかなり小さくなっているので
、ゴム材料には前方への推力が加えられると同時に、ゴ
ム材料を加圧することによりその温度が上昇する。In FIG. 1, the rubber material fed into the input section 2 from the input port 2b is sent into the front main body 3 of the apparatus through the rubber material passage by the screw 6, but the pitch of the screw 6 is set in the kneading area in the front. Since the rubber material is considerably smaller, a forward thrust is applied to the rubber material, and at the same time, by pressurizing the rubber material, its temperature increases.
本体３内へ送られたゴム材料は、スクリュー６によって
螺旋方向の推力を受けて前進し、内方へ突出するピン部
材８の突出部８ｂと接触することにより、混合作用が促
進される。このようにして、ゴム材料は本体３内を前方
へ送られるが、前記ゴム材料の混練領域を通過した後に
、スクリュー６のピッチが大きくなり圧縮が緩和される
と共に、ゴム材料中のガス分（主として空気）が吸引用
中空ピン部材９の吸引口９゛より吸引されるので、同時
にその周辺の圧力が低下して水分の沸騰点が低下するこ
とにより、ゴム材料中の水分が蒸発ガス化し、そのガス
化した水分が吸引口９゛より外部へ排出され、除去され
る。The rubber material fed into the main body 3 moves forward under the thrust of the screw 6 in a helical direction and comes into contact with the protrusion 8b of the pin member 8 protruding inward, thereby promoting the mixing action. In this way, the rubber material is sent forward inside the main body 3, but after passing through the kneading area of the rubber material, the pitch of the screw 6 becomes larger, the compression is relaxed, and the gas in the rubber material ( Since air (mainly air) is sucked through the suction port 9 of the suction hollow pin member 9, at the same time the pressure around it decreases and the boiling point of moisture decreases, causing the moisture in the rubber material to evaporate and become gas. The gasified water is discharged to the outside from the suction port 9' and removed.
ところで、ゴム材料は本体３内を送給される際、ピン部
材８或いは中空ピン部材９と接触するが、前記したとお
り、ピン部材８，９の接触面と反対側、すなわちゴム材
料の送給流れの下流側にガス分が滞留し易いので、ゴム
材料中のガス分及び水分は中空ピン部材９の吸引口９゛
より効率よく吸引されることになる。By the way, when the rubber material is fed inside the main body 3, it comes into contact with the pin member 8 or the hollow pin member 9, but as described above, the rubber material is fed on the side opposite to the contact surface of the pin members 8, 9, that is, on the side opposite to the contact surface of the pin members 8, 9, Since the gas content tends to stay on the downstream side of the flow, the gas content and moisture in the rubber material are efficiently sucked through the suction port 9' of the hollow pin member 9.
然して、ガス分及び水分の大部分が除去された状態のゴ
ム材料は、更に前方の先端部４よりヘッド部へ送られ、
開口（ダイス）より所定の断面形状で押し出される。Therefore, the rubber material from which most of the gas and moisture have been removed is further sent to the head section from the front end section 4.
It is extruded through an opening (dice) in a predetermined cross-sectional shape.
前記実施例では、スクリュー押出機１内を送給されるゴ
ム材料の温度を上昇させるために、スクリュー６のピン
チをかなり小さくしてゴム材料が加圧されるようにした
が、スクリュー６のピンチを変化させる代わりに、回転
軸部材５の外径を漸次太き（するか或いはこの領域に設
けられる中実ピン８の本数を多くしても同様の効果が得
られる。また、ゴム材料を積極的に加圧する代わりに、
本体３の円筒状ケーシング４の周囲に加熱手段を配備す
るか或いは前記加熱冷却用媒体通路３ｄに加熱媒体を流
入させて１、ゴム材料を加熱するようにしてもよい。In the above embodiment, in order to increase the temperature of the rubber material fed through the screw extruder 1, the pinch of the screw 6 was made considerably small so that the rubber material was pressurized. The same effect can be obtained by gradually increasing the outer diameter of the rotating shaft member 5 (or increasing the number of solid pins 8 provided in this area) instead of changing the rubber material. Instead of pressurizing
The rubber material may be heated by disposing a heating means around the cylindrical casing 4 of the main body 3 or by flowing a heating medium into the heating and cooling medium passage 3d.
次に、第５図は前記した特公昭５６−５３５００号に記
載のピン押出機に、本発明を適用した実施例を示す要部
断面図で、同図において、２１はケーシング本体で、本
体２１から内方のスクリュー２２に向けて複数本のピン
部材２３が突設されている。Next, FIG. 5 is a cross-sectional view of essential parts showing an embodiment in which the present invention is applied to the pin extruder described in Japanese Patent Publication No. 56-53500. In the same figure, 21 is a casing body; A plurality of pin members 23 are provided to protrude from the inside toward the screw 22.
これらのピン部材２３には先端部に吸引口２４が開設さ
れ、ピン部材２３の基端面より吸引口２４に連通する連
通孔２５が穿設されている。そして、各ピン部材２３の
連通孔２５基端には真空ポンプと接続されたパイプ（図
示せず）が接続され、ケーシング本体２１内をのガス分
を吸引して機外へ排出できるようになっている。なお、
図中、２６は加熱冷却媒体の通路である。Each of these pin members 23 has a suction port 24 at its tip, and a communication hole 25 that communicates with the suction port 24 from the proximal end surface of the pin member 23. A pipe (not shown) connected to a vacuum pump is connected to the base end of the communication hole 25 of each pin member 23, so that the gas inside the casing body 21 can be sucked and discharged to the outside of the machine. ing. In addition,
In the figure, 26 is a passage for heating and cooling medium.
第６図及び第７図は、本発明の更に他の実施例を示すも
ので、前記各実施例との相違点は、中空ピン部材９をピ
ン部材植設リング３ｂ’ に一体に結合したことである
。なお、図示を省略したが中実ピン部材８についても同
様に実施できるものである。FIGS. 6 and 7 show still other embodiments of the present invention, and the difference from each of the embodiments described above is that the hollow pin member 9 is integrally connected to the pin member planting ring 3b'. It is. Although not shown, the solid pin member 8 can also be implemented in the same manner.
（効 果）
以上説明したように、この発明のスクリュー押出機にお
ける粘性材料のガス分及び水分の除去方法並びにその装
置は、上記した構成からなるから、下記の如き効果を奏
する。(Effects) As explained above, since the method and device for removing gas and moisture from a viscous material in a screw extruder of the present invention have the above-described configuration, the following effects are achieved.
＋１）粘性材料中のガス分や水分を、従来のようにその
表面からだけでなく、内部から吸引できるので、除去率
が高く且つ効率がよく、粘性材料の加硫工程における加
硫圧を小さくでき、特に、スクリュー押出機と連続加硫
装置を組合せて使用する場合に有効である。+1) Gas and moisture in viscous materials can be sucked not only from the surface as before, but also from the inside, resulting in a high removal rate and efficiency, and reduces the vulcanization pressure in the vulcanization process of viscous materials. This is particularly effective when a screw extruder and continuous vulcanizer are used in combination.
（２）従来のピン押出機は、粘性材料にガス分や水分が
多量に含有された状態で押し出される傾向があり、また
、粘性材料中のガス分がピン部材の下流側に溜まる傾向
があるが、本発明はピン部材の下流側に吸引口を設けた
中空ピン部材を介して粘性材料中のガス分や水分を吸引
するので、粘性材料中のガス分や水分を効率良く吸引除
去でき、従来のピン押出機における上記した問題点を確
実に解決することができる。(2) Conventional pin extruders tend to extrude viscous materials containing a large amount of gas and moisture, and the gas in the viscous materials tends to accumulate on the downstream side of the pin member. However, in the present invention, the gas and moisture in the viscous material are sucked through the hollow pin member provided with the suction port on the downstream side of the pin member, so the gas and moisture in the viscous material can be efficiently removed by suction. The above-mentioned problems with conventional pin extruders can be reliably solved.
第１図は本発明の実施例を示す全体縦断面図、第２図は
第１図のｎ−ｎ線断面図、第３図（ａｌは中空ピン部材
の平面断面図、同図（ｂｌは側方断面図、第４図ｉａｌ
は中空ピン部材の他の実施例を示す平面図、同図（ｂ）
は断面図、第５図は本発明の他の実施例を示す要部断面
図、第６図は更に他の実施例を示す要部断面図、第７図
は同左側面図、第８図は従来のガス分除去装置を具備し
た押出機を示す全体概要断面図である。
３・・・押出機本体、３ａ・・・円筒状ケーシング、３
ｂ・・・ピン部材植設スリーブ、３ｃ・・・ケーシング
本体、５・・・回転軸部材、６・・・スクリュー、６ａ
・・・切り欠き、７・・・締付は機構、８・・・中実ピ
ン部材、９・・・吸引用中空ピン部材、９゛・・・吸引
口、１０・・・連通孔、１）・・・接続パイプ。FIG. 1 is an overall vertical sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line nn in FIG. 1, and FIG. Side sectional view, Figure 4 ial
is a plan view showing another example of the hollow pin member, FIG.
is a sectional view, FIG. 5 is a sectional view of a main part showing another embodiment of the present invention, FIG. 6 is a sectional view of a main part showing another embodiment, FIG. 7 is a left side view of the same, and FIG. FIG. 1 is an overall schematic sectional view showing an extruder equipped with a conventional gas removal device. 3... Extruder main body, 3a... Cylindrical casing, 3
b... Pin member installation sleeve, 3c... Casing body, 5... Rotating shaft member, 6... Screw, 6a
... Notch, 7... Tightening mechanism, 8... Solid pin member, 9... Hollow pin member for suction, 9゛... Suction port, 10... Communication hole, 1 )...Connection pipe.
Claims (2)
た粘性材料を、スクリューの回転により前方に送給しな
がら混合させ、前端ダイスより押し出すようにしたスク
リュー押出機において、材料混練領域における粘性材料
を加圧或いは加熱して粘性材料温度を上昇させ、次にゴ
ム材料の送給路中に吸引口をその送給流れの下流側に向
けて臨ませた吸引用中空ピン部材により粘性材料中のガ
ス分を吸引することによって押出機本体内圧を低下させ
、粘性材料中に含まれた水分の沸点を引き下げて蒸発ガ
ス化し、該蒸発ガス分を前記中空ピン部材の吸引口より
吸引して除去することを特徴とするスクリュー押出機に
おけるゴム材料中のガス分及び水分を除去する方法。(1) In a screw extruder, the viscous material supplied from the material input port at the rear of the screw extruder is mixed while being fed forward by the rotation of the screw, and then extruded from the front die. The temperature of the viscous material is raised by pressurizing or heating it, and then the suction pin member with the suction port facing the downstream side of the feed flow into the feed path of the rubber material is used to vacuum the viscous material. By suctioning the gas content, the internal pressure of the extruder body is lowered, the boiling point of water contained in the viscous material is lowered, and the water is evaporated into gas, and the evaporated gas content is removed by suctioning through the suction port of the hollow pin member. A method for removing gas and moisture from a rubber material using a screw extruder, characterized in that:
軸部材の長手方向にスクリューを有するスクリュー軸を
回動自在に配装し、該スクリュー軸の中間位置でスクリ
ューのピッチを狭めるか又は回転軸部材の外径を拡大さ
せて粘性材料が加圧されるようにし、該加圧領域後方で
前記円筒状ケーシング内周面より粘性材料通路内に突出
する吸引用中空ピン部材を、円周方向及び軸方向に間隔
を設け且つ中空ピン部材先端部に開設した吸引口を粘性
材料の送給流れの下流側に向けて複数配設すると共に、
前記スクリューに該中空ピン部材の突出部が通過可能な
切り欠きを開設し、前記各中空ピン部材の基端と接続パ
イプを介して吸引装置を接続したことを特徴とするスク
リュー押出機におけるゴム材料中のガス分及び水分除去
装置。(2) A screw shaft having a screw in the longitudinal direction of the rotating shaft member is rotatably arranged in the cylindrical casing of the screw extruder main body, and the pitch of the screw is narrowed at an intermediate position of the screw shaft, or the rotating shaft The outer diameter of the member is expanded to pressurize the viscous material, and a suction hollow pin member that protrudes into the viscous material passage from the inner circumferential surface of the cylindrical casing at the rear of the pressurizing area is moved in the circumferential direction and A plurality of suction ports are arranged at intervals in the axial direction and opened at the tip of the hollow pin member toward the downstream side of the feeding flow of the viscous material, and
A rubber material in a screw extruder, characterized in that the screw has a notch through which the protrusion of the hollow pin member can pass, and a suction device is connected to the base end of each hollow pin member via a connecting pipe. Equipment for removing gas and moisture inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61118960A JPS62273821A (en) | 1986-05-22 | 1986-05-22 | Method and apparatus for removing gaseous and water contents in viscose material in screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61118960A JPS62273821A (en) | 1986-05-22 | 1986-05-22 | Method and apparatus for removing gaseous and water contents in viscose material in screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62273821A true JPS62273821A (en) | 1987-11-27 |
Family
ID=14749534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61118960A Pending JPS62273821A (en) | 1986-05-22 | 1986-05-22 | Method and apparatus for removing gaseous and water contents in viscose material in screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62273821A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5080845A (en) * | 1988-11-30 | 1992-01-14 | Werner & Pfleiderer, Gmbh | Method of removing impurities from polymeric synthetic plastics materials and an apparatus for carrying out the method |
| EP1400337A1 (en) * | 2002-09-20 | 2004-03-24 | Basf Aktiengesellschaft | Apparatus for extrusion of thermoplastics |
| JP2017077651A (en) * | 2015-10-19 | 2017-04-27 | 住友ゴム工業株式会社 | Extruder |
| JP2017136804A (en) * | 2016-02-05 | 2017-08-10 | 住友ゴム工業株式会社 | Method for producing rubber member |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5186576A (en) * | 1975-01-28 | 1976-07-29 | Toyota Motor Co Ltd | |
| JPS58128832A (en) * | 1981-12-22 | 1983-08-01 | ユニロ−ヤル・エングレベルト・ライフエン・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング | Screw extruding machine |
-
1986
- 1986-05-22 JP JP61118960A patent/JPS62273821A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5186576A (en) * | 1975-01-28 | 1976-07-29 | Toyota Motor Co Ltd | |
| JPS58128832A (en) * | 1981-12-22 | 1983-08-01 | ユニロ−ヤル・エングレベルト・ライフエン・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング | Screw extruding machine |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5080845A (en) * | 1988-11-30 | 1992-01-14 | Werner & Pfleiderer, Gmbh | Method of removing impurities from polymeric synthetic plastics materials and an apparatus for carrying out the method |
| 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 |
| JP2017077651A (en) * | 2015-10-19 | 2017-04-27 | 住友ゴム工業株式会社 | Extruder |
| US11104053B2 (en) | 2015-10-19 | 2021-08-31 | Sumitomo Rubber Industries, Ltd. | Extruder |
| JP2017136804A (en) * | 2016-02-05 | 2017-08-10 | 住友ゴム工業株式会社 | Method for producing rubber member |
| WO2017135007A1 (en) * | 2016-02-05 | 2017-08-10 | 住友ゴム工業株式会社 | Method for producing rubber member |
| CN108602229A (en) * | 2016-02-05 | 2018-09-28 | 住友橡胶工业株式会社 | The manufacturing method of rubber components |
| US11097447B2 (en) | 2016-02-05 | 2021-08-24 | Sumitomo Rubber Industries, Ltd. | Method for producing rubber member |
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