JPS62184830A - Vent type two stage extrusion equipment with different bores - Google Patents
Vent type two stage extrusion equipment with different boresInfo
- Publication number
- JPS62184830A JPS62184830A JP61028183A JP2818386A JPS62184830A JP S62184830 A JPS62184830 A JP S62184830A JP 61028183 A JP61028183 A JP 61028183A JP 2818386 A JP2818386 A JP 2818386A JP S62184830 A JPS62184830 A JP S62184830A
- Authority
- JP
- Japan
- Prior art keywords
- extruder
- resin
- cylinder
- screw shaft
- vent hole
- 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
- 238000001125 extrusion Methods 0.000 title claims description 12
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 3
- 229920005992 thermoplastic resin Polymers 0.000 claims description 2
- 229920005989 resin Polymers 0.000 abstract description 34
- 239000011347 resin Substances 0.000 abstract description 34
- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 238000013022 venting Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 230000006837 decompression Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 241000254158 Lampyridae Species 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic 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
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/38—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in the same 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
- B29C48/03—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】
〔利用される技術分野〕
この発明はベント式押出機であって、特に２つの押出機
を順次直列に接続した２段式の押出機に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Technical Field Applied] The present invention relates to a vented extruder, and particularly to a two-stage extruder in which two extruders are connected in series.
本件出願人が市場にある公知の２段式押出磯を調査した
ところ、上流側の、１−１の押出機のシリンダ径と下流
側の矛２の押出機のシリンダ径とは同じであり、ガス抜
きのベント孔も２段式のものにおいては第１の押出機の
吐出口から第２の押出機の供給口に通じる連絡路の中間
に設けられている。When the present applicant investigated known two-stage extrusion machines on the market, it was found that the cylinder diameter of the upstream extruder 1-1 and the downstream extruder 2 were the same. In the case of a two-stage extruder, a vent hole for degassing is also provided in the middle of the communication path leading from the discharge port of the first extruder to the supply port of the second extruder.
ところが、ｔ−１の押出機においてはベンットを半饅融
状態にまで加熱するものであり、矛２の押出機は完全に
溶融混練するものであるから当然に２つかしく、従来は
矛１の押出機の回転数を変化させることによって調整し
ている。However, the extruder t-1 heats the vent to a semi-molten state, and the extruder 2 completely melts and kneads it, so it is natural that the extruder t-1 is more important than the other. It is adjusted by changing the rotation speed of the extruder.
ところが、２つの押出機のシリンダ径が同一であるため
、微調整がむつかしく、また牙１の押出機の吐出量を多
くすると前記連絡路に設けであるベント孔より半浴融樹
脂が湿田する童が多くなり第２押出磯への供給量の調整
を困難にしており、常に均質な浴融樹脂を矛２の押出機
から押し出すには制度の熟練を要した。 ′
〔解決しようとする問題点〕
この発明は上記のような公知の装置の欠点を改善し、特
に第１の押出機のシリンダー径を矛２のそれよりも小さ
くし、矛１の押出機の回転数の変化による矛２の押出機
へ力影響を小さくし、調整を容易にすると共に、ベント
孔の位置に工夫を加えることにより、ベント孔よりの樹
脂の浴出を極力少なくし、矛２の押出機よりの樹脂吐出
量の安定化と、均質樹脂の押出ができるようにすること
を目的とする。However, since the cylinder diameters of the two extruders are the same, it is difficult to make fine adjustments, and if the discharge rate of the extruder 1 is increased, the semi-bath molten resin will leak out of the vent hole provided in the communication path. This made it difficult to adjust the amount supplied to the second extruder, and it required technical skill to always extrude a homogeneous melted resin from the extruder No. 2. [Problems to be Solved] This invention improves the drawbacks of the known devices as described above, and in particular, the cylinder diameter of the first extruder is made smaller than that of the first extruder, and the extruder of the first extruder is made smaller. By reducing the influence of force on the extruder of spear 2 due to changes in rotational speed and making adjustment easier, by adding some ideas to the position of the vent hole, the amount of resin coming out from the vent hole is minimized, and the extruder of spear 2 is The purpose is to stabilize the amount of resin discharged from the extruder and to enable extrusion of homogeneous resin.
この発明は２般式熱可塑性樹脂押出機において下流側の
押出機の供給口に近いシリンダの供給部にベント孔が設
けてあり、上流側の矛１押出磯のシリンダ径ｄ１と下流
側の第２押出機のシリンダ径ｄ２の関係が
としであることを特徴とするベント式異径２段押出装置
とすることによって問題点を解決した。In this invention, a vent hole is provided in the supply part of the cylinder near the supply port of the extruder on the downstream side in a two-type thermoplastic resin extruder. The problem was solved by creating a vent type two-stage extrusion device with different diameters, which is characterized in that the relationship between the cylinder diameters d2 of the two extruders is equal.
〔作 用〕
狭止のよって構成しているこの発明の装置においては第
２押出機の吐出部に公知の２段式押出装置と同様に圧力
計を設け、この圧力が常に一定になるよう、第１押出機
の回転数を変動させ、或は第１押出機の吐出部に調圧弁
を設け、この開度調整によって、矛２の押出機に供給さ
れる樹脂量を増減して行う。[Function] In the device of the present invention, which is constructed by a constriction, a pressure gauge is provided at the discharge portion of the second extruder, as in the known two-stage extrusion device, so that the pressure is always constant. The amount of resin supplied to the extruder 2 is increased or decreased by varying the rotational speed of the first extruder or by providing a pressure regulating valve in the discharge section of the first extruder and adjusting the opening.
矛２押出磯のシリンダに供給された半溶融状態の樹脂か
ら発生するガスは、このシリンダの供給部に設けられて
いるベント孔から抜去され、樹脂は、１？２押出機のシ
リンダ内のスクリュー軸によって、そのまへ搬送され、
更に加熱混株され均質な耐融樹脂となって、矛２押出磯
の吐出部より更にダイに送り込まれる。The gas generated from the semi-molten resin supplied to the cylinder of the extruder 2 is extracted from the vent hole provided in the supply section of this cylinder, and the resin is passed through the screw in the cylinder of the extruder 1 and 2. The shaft conveys it as it is,
The mixture is further heated and mixed to become a homogeneous melt-resistant resin, which is further fed into a die from the discharge part of the extrusion rod.
上記のように、第１押出機と、ｔ２押出機のシリンダ径
が異な゛るから、第２押出機のスクリュー軸の回転は第
１の押出機より約１０乃至５０％低速回転となって運転
される。As mentioned above, since the cylinder diameters of the first extruder and the t2 extruder are different, the rotation speed of the screw shaft of the second extruder is approximately 10 to 50% slower than that of the first extruder. be done.
狭止のように構成し作用を為すこの発明の装置において
は、第１押出機のシリンダ径が第２のそれよりも小さい
から、第１押出機の樹脂の押出量の変動による第２押出
機への影響が少ないため、微調整が容易で、かつベント
孔から浴出する量が少なくなる第１押出機のスクリュー
軸回転数の選定や、調圧弁の調整も容易となる。In the apparatus of the present invention, which is constructed and acts like a constrictor, since the cylinder diameter of the first extruder is smaller than that of the second, the second extruder may be affected by fluctuations in the amount of resin extruded by the first extruder. Since the influence on the temperature is small, it is easy to make fine adjustments, and it is also easy to select the rotational speed of the screw shaft of the first extruder that reduces the amount of bath coming out from the vent hole, and to adjust the pressure regulating valve.
また第１押出機のスクリュー軸の回転を高めることがで
きるからペレットの可塑化、醇融効率を高め易く、かつ
この第１押出機の運転動力も軽減できる。Furthermore, since the rotation of the screw shaft of the first extruder can be increased, the plasticization and melting efficiency of the pellets can be easily increased, and the operating power of the first extruder can also be reduced.
更に第２押出機はそのシリンダ径が大径であるためスク
リューの回転数が低くでき、加熱器より光分に搬送され
る樹脂は熱吸収を行い、またこの低速回転により余分な
剪断熱を樹脂に発生させず範囲より大きいときは、異径
にした効果は殆んどなく、また、前記範囲よりも小さい
ときは第１押出機のスクリュー軸の回転数がいたずらに
早くなり過ぎ、むしろ悪影響を樹脂に与える。Furthermore, since the second extruder has a large cylinder diameter, the rotation speed of the screw can be low, and the resin transported by light from the heater absorbs heat, and this low speed rotation also removes excess shear heat from the resin. If it does not occur and the diameter is larger than the range, there is almost no effect of changing the diameter, and if it is smaller than the range, the rotation speed of the screw shaft of the first extruder becomes unnecessarily high, which may actually have a negative effect. feed into the resin.
この発明においては更にベント孔は前述の第２押出機の
シリンダの供給部に設けであるため、この中の第２押出
機のスクリュー軸によって軸方向に搬送される部分であ
り、従来公知の第１押出機と第２押出機の中間の単なる
連絡路で搬送機能のない部分に設けたものよりは遥かに
浴融乃至半溶融樹脂の湿田量は少なく、第１押出機のシ
リンダ径が小さいのと相まって、その効果はより顕著に
することができる。Furthermore, in this invention, since the vent hole is provided in the supply section of the cylinder of the second extruder, the vent hole is a part of the cylinder that is conveyed in the axial direction by the screw shaft of the second extruder. Compared to a simple communication path between the 1st extruder and the 2nd extruder, which does not have a conveying function, the amount of wetted bath-molten or semi-molten resin is much smaller, and the cylinder diameter of the 1st extruder is smaller. In combination with this, the effect can be made more pronounced.
今この発明の理解な容易にするため以下図示の代表的な
実施態様に基づいて説明する。In order to facilitate understanding of the present invention, the following description will be made based on representative embodiments shown in the drawings.
図中、１０は第１押出機であり、１１はこのシリンダ、
１２はこの中に設けられているスクリュー軸、１３はこ
れを駆動するための矛１のモータ１４は第１押出隈１０
の吐出口である。２０は矛２押出４幾であり、２１はそ
のシリンダ、２２はシリンダ２１中に装備しであるスク
リュー軸、２３はこれな、ｖｉ動する第２のモータ、１
６は矛１のシリンダ１１の吐出口１４と第２のシリンダ
２１の供給口２５を衾続している連絡路１５を有する連
結部材であり、この連結部材１６には連絡路１５中θ〕
樹脂圧力を測定する第１圧力計１７と７２押出機２０に
送り込む圧力を調整する調圧弁１８が装備しである。In the figure, 10 is the first extruder, 11 is this cylinder,
12 is a screw shaft provided therein, 13 is a motor 14 of the spear 1 for driving this, and the first extruder 10
This is the discharge port. 20 is the spear 2 extruder 4, 21 is its cylinder, 22 is the screw shaft installed in the cylinder 21, 23 is the second motor that moves vi, 1
6 is a connecting member having a communication path 15 connecting the discharge port 14 of the cylinder 11 of the spear 1 and the supply port 25 of the second cylinder 21;
It is equipped with a first pressure gauge 17 and 72 for measuring the resin pressure, and a pressure regulating valve 18 for regulating the pressure fed into the extruder 20.
而して矛１のシリンダ１１の内径ｄｌと矛２のシとして
あり、例えばｄｘ＝１００ｓｍのとき、 ｄ２ ＝１３
０ｕ程度としである。Therefore, the inner diameter dl of the cylinder 11 of the spear 1 and the cy of the spear 2 are defined as, for example, when dx = 100sm, d2 = 13
It is about 0u.
７２押出機２０の押出口２６は押出用ダイ３０に、１−
２の連絡路２７を有する。１−２の連結部材２８によっ
て連結しである。第２押出機２０の押出口２６の近傍及
び第２連結部材２８の途中には内部の樹脂圧力を測定す
るための第２１，１−３の圧力計２９．４３が設けであ
る。また第２連結部材２８には更に第２連絡路中の溶融
樹脂温度を測定するための温度計３１が設けである。72 The extrusion port 26 of the extruder 20 connects the extrusion die 30 with the 1-
It has two communication paths 27. They are connected by a connecting member 28 1-2. In the vicinity of the extrusion port 26 of the second extruder 20 and in the middle of the second connecting member 28, 21st and 1-3rd pressure gauges 29 and 43 are provided for measuring the internal resin pressure. Further, the second connecting member 28 is further provided with a thermometer 31 for measuring the temperature of the molten resin in the second communication path.
３２はベント孔であり第２押出機２０のシリンダ２１の
供給口２５より下流側の供給部３３の前記シリンダ２１
の側面であって、スクリュー軸２２が回転によって下降
する側のシリンダ側壁に設けてあり、その１１８６は垂
直線に対しはｙ４５°外端はど高（傾斜して設けてあり
、かつ牙２のシリンダ２１の半径方向の線に対し、この
矛２のスクリュー＠２２の順回転方向に３０°乃至９０
°の範囲で傾斜して設けである（矛２図参照）。32 is a vent hole, which is connected to the cylinder 21 of the supply section 33 downstream of the supply port 25 of the cylinder 21 of the second extruder 20.
1186 is provided on the side wall of the cylinder on the side where the screw shaft 22 descends due to rotation, and its outer end is at an angle of 45 degrees with respect to the vertical line. 30° to 90° in the forward rotational direction of the screw @ 22 of this spear 2 with respect to the radial line of the cylinder 21.
It is inclined in the range of 100° (see Figure 2).
而して、ベント孔３２の外端部は気密減圧室３４の中段
より上部に設けてあり、底蓋３５は開閉自在に設けてあ
り、前記気密減圧室３４の側壁３６及び前記底蓋３５の
外面には冷却コイル３７．３８が取付けてあり、前記側
壁３６及び底蓋３５の内面は冷却用の熱交換面になって
いる。この気密減圧室３４の上部の前記ベント孔３２と
の接続口３９とは若干離反し、かつこれよりも上位位置
には真空ポンプ４０と連結されるポンプ接続口４１が設
けである。４２は透明な上蓋である。The outer end of the vent hole 32 is provided above the middle stage of the airtight decompression chamber 34, and the bottom cover 35 is provided so as to be openable and closable. Cooling coils 37, 38 are attached to the outer surface, and the inner surfaces of the side wall 36 and the bottom cover 35 serve as heat exchange surfaces for cooling. A pump connection port 41 connected to a vacuum pump 40 is provided at a position slightly apart from and above the connection port 39 with the vent hole 32 at the upper part of the airtight decompression chamber 34 . 42 is a transparent top lid.
先ず第１押出機１０の供給口１９より原料たる熱可塑性
曾成樹脂若（はこれと充填材粉末との混合物を供給し、
第１のスクリュー軸１２及び第２のスクリュー軸２２を
それぞれのモータ１３．２３によって回転させ、七ねそ
れのシリンダ１１．２１を公知と同様の手段によって所
定の部所を所定の温度に加熱すると、第１押出機１０に
より半浴融状態とな”つた樹脂は吐出口１４より連絡、
＠１５を通って第２押出機２０の供給口２５に供給され
、第２のスクリュー＠２２によって下流側に搬送される
間に更に溶融樹脂を加熱しながら供給部３３を通過させ
、この間に発生するガスをベント孔３２より気密減圧チ
ャンバ３４を介して真空ポンプ４０によって吸引排除す
る。First, a mixture of thermoplastic synthetic resin (a raw material) and filler powder is supplied from the supply port 19 of the first extruder 10,
The first screw shaft 12 and the second screw shaft 22 are rotated by their respective motors 13.23, and the seven cylinders 11.21 are heated at predetermined locations to a predetermined temperature by means similar to those known in the art. The resin, which has been brought into a semi-molten state by the first extruder 10, is communicated through the discharge port 14.
The molten resin is supplied to the supply port 25 of the second extruder 20 through @15, and while being conveyed downstream by the second screw @22, the molten resin is passed through the supply section 33 while being further heated. The gas is sucked out from the vent hole 32 through the airtight decompression chamber 34 by the vacuum pump 40.
他方ガス抜きされた溶融樹脂は７２のスクリューＩＩ！
［Ｂ２２によって更に湿球され押出口２６より矛２連絡
路２７を通ってダイ３ｏに供給される。On the other hand, the degassed molten resin is transferred to the screw II of 72!
[It is further wet-bulbed by B22 and supplied to the die 3o from the extrusion port 26 through the spear 2 communication path 27.
またベント孔３２部を通過する層線樹脂の一部はベント
孔３２中に品出するがベント孔３２は前記の通り傾斜し
ているため自重によって、再びその殆んどは第２のシリ
ンダ２１内に戻り矛２のスクリュー軸２２によってまき
込んで再び他の樹脂と混線し、均質化してダイに供給さ
れる。Also, a part of the layered wire resin passing through the vent hole 32 is discharged into the vent hole 32, but since the vent hole 32 is inclined as described above, most of it is transferred to the second cylinder 21 due to its own weight. The resin returns to the inside and is rolled in by the screw shaft 22 of the spear 2, mixed with other resins again, homogenized, and supplied to the die.
この態様の装置においてはダイ３０に供給する樹脂量を
２２のスクリュー軸２２の回転数によって設定し、矛２
の圧力計２９の圧力が常にはｒ 一定になるように７１
押出機１０のスクリュー軸１２の回転数を変化させ必要
に応じて、調圧弁を調製して行う。この操作は矛２の圧
力計２９の圧力及びベント孔３２より品出して、気密減
圧チャンバ３４中に湿田する俗融樹脂蛍をみながら、矛
１のスクリュー軸１２の回転数を人手によって制御して
も或は自動制御装置を付加して自動制御を行ってもこの
発明としては同一である。In the apparatus of this embodiment, the amount of resin supplied to the die 30 is set by the number of rotations of the screw shafts 22, and
71 so that the pressure on the pressure gauge 29 is always constant.
This is carried out by changing the rotational speed of the screw shaft 12 of the extruder 10 and adjusting the pressure regulating valve as necessary. This operation is performed by manually controlling the rotation speed of the screw shaft 12 of the spear 1 while monitoring the pressure from the pressure gauge 29 of the spear 2 and the vent hole 32, and observing the molten resin fireflies dampened in the airtight decompression chamber 34. The present invention is the same even if an automatic control device is added to perform automatic control.
またこの実施態様においては本発明の効果の外前述のよ
うな構成の気密減圧チャンバ３４を介して真空ポンプ４
０をベント孔３２に接続したからこの気圧減圧チャンバ
３４部分で溶融樹脂と発生ガスの分離ができ、真空ポン
プ４０に溶融樹脂を吸引するおそれはないし、かつこの
気密減圧チャンバ３４中に濡出した樹脂は冷却されて固
化するから、溜ったところで、底工３５を開けて簡単に
除去でき、真空ポンプ４０やベント孔３２の清掃のため
この装置を長時間停止させ、稼動効率を低下させるおそ
れがない。Furthermore, in this embodiment, in addition to the effects of the present invention, the vacuum pump 4 is
Since 0 is connected to the vent hole 32, the molten resin and the generated gas can be separated in the vacuum chamber 34, and there is no risk of the molten resin being sucked into the vacuum pump 40 and leaking into the airtight vacuum chamber 34. Since the resin solidifies as it cools, once it has accumulated, it can be easily removed by opening the bottom structure 35, which may cause the equipment to be stopped for a long time to clean the vacuum pump 40 and vent hole 32, which may reduce operating efficiency. do not have.
図面はこの発明に係る代表的な実施態様を示すものであ
って、矛１図は原理的機構を示す平面図、矛２図は、１
？１図の２−２線縦断正面図である。
図中
１０・・・・・・第１押出機、 ２０・・・・・・第２
押出機、１１・・・・・・７１のシリンダ、２１・・・
・・・第２のシリンダ、ｄｏ・・・・・・Ｊ−１のシリ
ンダ径、ｄ２・・・・・・矛２のシリンダ径、
３２・・・・・・ベント孔。The drawings show typical embodiments according to the present invention, and Figure 1 is a plan view showing the principle mechanism, and Figure 2 is 1.
? FIG. 2 is a longitudinal sectional front view taken along line 2-2 in FIG. 1; In the figure, 10...first extruder, 20...second extruder
Extruder, 11...71 cylinder, 21...
...Second cylinder, do...Cylinder diameter of J-1, d2...Cylinder diameter of spear 2, 32...Bent hole.
Claims (1)
機の供給口に近いシリンダの供給部にベント孔が設けて
あり、上流側の第１押出機のシリンダ径ｄ＿１と下流側
の第２押出機の径ｄ＿２の関係がｄ＿１／ｄ＿２＜１ としてあることを特徴とするベント式異径２段押出装置
。 ２）前記ｄ＿１／ｄ＿２＝０．９〜０．６５としてある
特許請求の範囲第１項記載のベント式異径２段押出装置
。[Claims] 1) In a two-stage thermoplastic resin extruder, a vent hole is provided in the supply section of the cylinder near the supply port of the downstream extruder, and the cylinder diameter of the first extruder on the upstream side is provided with a vent hole. A vent type two-stage extrusion device with different diameters, characterized in that the relationship between d_1 and the diameter d_2 of the downstream second extruder is d_1/d_2<1. 2) The vent type two-stage extrusion device with different diameters according to claim 1, wherein d_1/d_2=0.9 to 0.65.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61028183A JPH0747293B2 (en) | 1986-02-12 | 1986-02-12 | Vent type different diameter two-stage extruder |
| US07/009,527 US4767303A (en) | 1986-02-12 | 1987-02-02 | Extruding apparatus for extruding synthetic resin |
| CA000528808A CA1288921C (en) | 1986-02-12 | 1987-02-03 | Extruding apparatus for extruding synthetic resin |
| KR1019870000888A KR910000289B1 (en) | 1986-02-12 | 1987-02-04 | Two-stage extruder |
| DE19873703758 DE3703758A1 (en) | 1986-02-12 | 1987-02-07 | EXTRUSION DEVICE FOR EXTRUDING A PLASTIC |
| CN87101886A CN1009718B (en) | 1986-02-12 | 1987-02-11 | Extruding apparatus for extruding synthetic resin |
| FR878701759A FR2594067B1 (en) | 1986-02-12 | 1987-02-12 | EXTRUDER WITH TWO EXTRUDERS |
| FR8708648A FR2599294A1 (en) | 1986-02-12 | 1987-06-19 | EXTRUSION APPARATUS WITH TWO EXTRUDERS |
| CA000616031A CA1310456C (en) | 1986-02-12 | 1991-03-22 | Extruding apparatus for extruding synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61028183A JPH0747293B2 (en) | 1986-02-12 | 1986-02-12 | Vent type different diameter two-stage extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62184830A true JPS62184830A (en) | 1987-08-13 |
| JPH0747293B2 JPH0747293B2 (en) | 1995-05-24 |
Family
ID=12241594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61028183A Expired - Lifetime JPH0747293B2 (en) | 1986-02-12 | 1986-02-12 | Vent type different diameter two-stage extruder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0747293B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0323922A (en) * | 1989-06-20 | 1991-01-31 | Mitsubishi Heavy Ind Ltd | Control method for series two-stage extruder |
| KR20200101179A (en) | 2019-02-19 | 2020-08-27 | 산테라 가부시키가이샤 | Film production method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5351905U (en) * | 1976-10-06 | 1978-05-02 | ||
| JPS5417869U (en) * | 1977-02-18 | 1979-02-05 |
-
1986
- 1986-02-12 JP JP61028183A patent/JPH0747293B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5351905U (en) * | 1976-10-06 | 1978-05-02 | ||
| JPS5417869U (en) * | 1977-02-18 | 1979-02-05 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0323922A (en) * | 1989-06-20 | 1991-01-31 | Mitsubishi Heavy Ind Ltd | Control method for series two-stage extruder |
| KR20200101179A (en) | 2019-02-19 | 2020-08-27 | 산테라 가부시키가이샤 | Film production method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0747293B2 (en) | 1995-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2595455A (en) | Extruder | |
| US3860220A (en) | Multi-section screw extruder | |
| JP2002537144A (en) | Method and apparatus for extruding low bulk density polycarbonate material | |
| US6068466A (en) | Twin type continuous kneading extruder | |
| US6409373B1 (en) | Continuous kneader, rotor for material discharging | |
| JPS62184830A (en) | Vent type two stage extrusion equipment with different bores | |
| US4004787A (en) | Mixing and venting extruder | |
| JP6777935B2 (en) | Vent device and vent type injection molding machine | |
| JPS5850533B2 (en) | Two-screw continuous kneader | |
| CN116834320A (en) | CPP film production process and device | |
| JPH05104609A (en) | Vent extruding machine | |
| JP2001293770A (en) | Extrusion molding, and method and apparatus for manufacturing the same | |
| JP2987183B2 (en) | Extrusion molding method and apparatus | |
| JPS61241117A (en) | Deaeration-plasticization device of injection molder | |
| CN114750392A (en) | Extrusion moulding machine for density-reducing biological full-degradable film | |
| JP4068692B2 (en) | Twin screw extruder and pressure control method of twin screw extruder | |
| JP7421612B1 (en) | Twin-screw continuous kneading extrusion device | |
| JPH09141726A (en) | Method and apparatus for extrusion molding of vinyl chloride molded product | |
| US6416211B1 (en) | Method and apparatus for molding plastic | |
| CN214395332U (en) | Novel extrusion mechanism for film blowing machine | |
| JP2011088332A (en) | Hungry molding machine | |
| CN218084042U (en) | Production line for chemically crosslinked polyethylene extruded sheets | |
| CN217293495U (en) | Continuous film blowing forming device of plastic extruder | |
| CN214188481U (en) | 3D print head | |
| CN117962261A (en) | Double-station screw extruder for cable production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |