JPH074833B2 - Melt plasticizer - Google Patents
Melt plasticizerInfo
- Publication number
- JPH074833B2 JPH074833B2 JP63127005A JP12700588A JPH074833B2 JP H074833 B2 JPH074833 B2 JP H074833B2 JP 63127005 A JP63127005 A JP 63127005A JP 12700588 A JP12700588 A JP 12700588A JP H074833 B2 JPH074833 B2 JP H074833B2
- Authority
- JP
- Japan
- Prior art keywords
- conveyor
- heating
- resin
- melt
- pellets
- 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 - Fee Related
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 (産業上の利用分野) 本発明は、押出機、射出成形機等に適用される熱可塑性
プラスチックの溶融可塑化装置に関するものである。TECHNICAL FIELD The present invention relates to a melt plasticizing device for thermoplastics applied to an extruder, an injection molding machine, or the like.
(従来の技術) 溶融可塑化装置に供給される原料樹脂を予熱するため、
従来、第2図に示すような充填層タイプの加熱装置が溶
融可塑化装置とは別個に設置され、両者をオフ・ライン
で使用している。ただし、稀に溶融可塑化装置と直接連
結することもあるが、一般には空送等の手段を用い、加
熱された原料樹脂をバッチで溶融可塑化装置の本体へと
移送している。(Prior Art) In order to preheat the raw material resin supplied to the melt plasticizer,
Conventionally, a packed bed type heating device as shown in FIG. 2 is installed separately from the melt plasticizing device, and both are used off-line. However, although it may occasionally be directly connected to the melt plasticizing device, generally, the heated raw material resin is batch-transferred to the main body of the melt plasticizing device using a means such as air feeding.
即ち、第2図において1は充填槽で熱交換器5により加
熱された熱風は充填槽1下部の分配ダクト2からファン
6により吹き出し、内部に充填された樹脂粒子間を通り
抜け樹脂粒子を加熱する。That is, in FIG. 2, reference numeral 1 denotes a filling tank, and hot air heated by the heat exchanger 5 is blown out from the distribution duct 2 below the filling tank 1 by the fan 6, passes through between the resin particles filled inside, and heats the resin particles. .
熱風は樹脂粒子の加熱後、充填槽1の上方からファン6
に吸引されて循環する。このときの熱風温度は、熱交換
器5の出口部の熱風温度が温度センサ7により検出さ
れ、温度調節装置8、ヒータ電源回路を介して熱交換器
温度を制御することにより制御される。After the resin particles are heated, hot air is blown from above the filling tank 1 into the fan 6
Is sucked into and circulates. The hot air temperature at this time is controlled by detecting the hot air temperature at the outlet of the heat exchanger 5 by the temperature sensor 7 and controlling the heat exchanger temperature via the temperature adjusting device 8 and the heater power supply circuit.
加熱された原料樹脂はバルブ3を通って排出される。こ
の種の加熱装置が抱える問題点は、槽内にある樹脂の排
出状態を常に一定にすることができないことであり、従
って滞留時間にむらがあるため、樹脂粒子の温度分布を
一定にすることが難かしく、樹脂粒子の温度を一定にす
るためには長時間の加熱を必要とする。これは加熱装置
がインラインに組込めない理由の一つでもある。The heated raw material resin is discharged through the valve 3. The problem with this type of heating device is that the discharge state of the resin in the tank cannot always be kept constant, and therefore the residence time is uneven, so the temperature distribution of the resin particles should be kept constant. Is difficult, and long-term heating is required to keep the temperature of the resin particles constant. This is one of the reasons why the heating device cannot be installed inline.
また、上記の様に加熱時間を長くとらざるを得ないため
に、加熱温度が高いと充填槽中の樹脂粒子が互いに粘着
し、全体がお菓子の「オコシ」状に固まってしまい、溶
融可塑化装置本体に円滑に送り込めなくなるという問題
もある。しかしながら、正常状態で運転できるならば、
一般的には上記充填槽内の樹脂粒子を加熱することによ
り、溶融可塑化装置の能力を20〜30%上昇させることが
できる。In addition, since the heating time is inevitably long as described above, when the heating temperature is high, the resin particles in the filling tank stick to each other, and the whole is solidified in the shape of "candy" of the confectionery, resulting in melt plasticization. There is also a problem that it cannot be smoothly sent to the main body of the chemical conversion device. However, if you can drive in normal condition,
Generally, by heating the resin particles in the filling tank, the capacity of the melt plasticizer can be increased by 20 to 30%.
そこで、溶融可塑化装置に加熱された原料樹脂を供給す
ることによる利点を生かし、かつ上記問題点の解決を目
的として開発された第3図に示すような溶融可塑化装置
が、例えば特願昭62−51498号により既に提案されてい
る。Therefore, a melt plasticizer as shown in FIG. 3 was developed for the purpose of solving the above-mentioned problems while taking advantage of supplying the heated raw material resin to the melt plasticizer. Already proposed by No. 62-51498.
この装置は原料樹脂を層状で流動させながら加熱する流
動層加熱装置を溶融可塑化装置本体に一体的に備えた溶
融可塑化装置であり、ホッパ11内の樹脂ペレットRは可
変速モータ13により駆動される定量フィーダ12によって
所望量が流動層加熱槽内に供給される。供給された樹脂
ペレットRはヒンジ19,19…により回動可能にされた複
数段の多孔の分散板18a,18b…を上部から下部に段階的
に層状で流動し、溶融可塑化装置本体の原料樹脂導入口
に達する。この流動している間に熱交換器5で加熱され
た熱風がダクト4を通してファン6により流動層加熱槽
内に供給され、各分散板18a,18b…の孔を通り抜けて、
樹脂ペレットRを加熱しつつ上方に流れ、戻り空気孔40
からダクト4を通って循環する。This device is a melt plasticizing device integrally provided in the melt plasticizing device main body for heating while fluidizing the raw material resin in a layered manner, and the resin pellet R in the hopper 11 is driven by the variable speed motor 13. A desired amount is supplied into the fluidized bed heating tank by the fixed amount feeder 12. The supplied resin pellets R flow in layers in a stepwise manner from a plurality of stages of porous dispersion plates 18a, 18b, which are rotatable by hinges 19, 19, .. Reach the resin inlet. While being flowing, the hot air heated by the heat exchanger 5 is supplied to the inside of the fluidized bed heating tank by the fan 6 through the duct 4 and passes through the holes of the dispersion plates 18a, 18b ...
While heating the resin pellet R, it flows upward and returns air holes 40
To circulate through duct 4.
なお、7は熱風温度センサ、8は温度調節装置である。In addition, 7 is a hot air temperature sensor and 8 is a temperature adjusting device.
即ち、第3図に示す加熱装置は分散板18a,18b…を傾斜
させて樹脂ペレットRを層状で連続的に加熱搬送しよう
とするものである。That is, the heating device shown in FIG. 3 is intended to continuously heat and convey the resin pellets R in layers by inclining the dispersion plates 18a, 18b.
しかし、この装置の場合、樹脂の搬送量と分散板の傾き
角の関係が微妙であり、樹脂の加熱溶融量を頻繁に変更
する場合(この状態が樹脂の溶融可塑化装置では一般的
である。)、良好な流動状況を保ちながら所定の搬送量
を得るように分散板の傾き角を設定しようとすると、長
時間を要することになる。また、運転停止時には分散板
上に少量のペレットが残り、その掃除時間も必要とな
る。However, in the case of this device, the relationship between the amount of resin conveyed and the inclination angle of the dispersion plate is delicate, and when the heating and melting amount of resin is frequently changed (this state is common in a resin melting and plasticizing device). .), It takes a long time to set the inclination angle of the dispersion plate so as to obtain a predetermined transport amount while maintaining a good flow state. In addition, when the operation is stopped, a small amount of pellets remain on the dispersion plate, which requires cleaning time.
従って、この装置の適用は大型のフィルム製造装置には
適しているが、溶融量とかペレット種類の変更頻度が高
い加熱・可塑化装置には向かず他の工夫が必要となる。Therefore, although the application of this apparatus is suitable for a large-sized film manufacturing apparatus, it is not suitable for a heating / plasticizing apparatus in which the melting amount or the pellet type is frequently changed, and other measures are required.
(発明が解決しようとする課題) 第3図に示す傾斜分散板による流動層加熱装置は、第2
図に示す従来一般の充填層加熱方式に較べると、より高
温加熱が可能であり例えばポリプロピレン樹脂の場合に
充填層方式では80〜90℃、流動層方式では150〜160℃ま
で加熱が可能となり、加熱時間も短かくそのメリットが
大きい。しかし、前述のように加熱量に合わせて分散板
の傾き角を調整することが難かしいというデメリットが
残されていた。(Problems to be Solved by the Invention) A fluidized bed heating apparatus using an inclined dispersion plate shown in FIG.
Compared with the conventional general packed bed heating method shown in the figure, higher temperature heating is possible, for example, in the case of polypropylene resin, the packed bed method can heat up to 80 to 90 ° C, and the fluidized bed method can heat up to 150 to 160 ° C. The heating time is short and the advantage is great. However, as described above, there is a demerit that it is difficult to adjust the inclination angle of the dispersion plate according to the heating amount.
そこで、本発明はこの点を改良するためになされたもの
であり、樹脂原料の搬送量を簡単にかつ任意に調整可能
とした流動層式加熱装置を備える溶融可塑化装置を提供
しようとするものである。Therefore, the present invention has been made in order to improve this point, and it is an object of the present invention to provide a melt plasticizing apparatus equipped with a fluidized bed heating device in which the amount of resin material conveyed can be easily and arbitrarily adjusted. Is.
(課題を解決するための手段) このため、本発明は熱可塑性プラスチック溶融可塑化装
置において、通風性ある部材により構成し回動するエン
ドレスベルトを内部に備え、原料樹脂を同ベルト上で層
状に移動させながら加熱する流動層加熱装置を溶融可塑
化装置本体の原料供給部に連設することを構成とし、こ
れを上記課題の解決手段とするものである。(Means for Solving the Problems) Therefore, in the present invention, in the thermoplastic melting and plasticizing apparatus, the present invention is provided with an endless belt which is composed of a ventilation member and rotates, and the raw material resin is layered on the belt. A fluidized bed heating device that heats while moving is connected to a raw material supply unit of the melt plasticizing device main body, which is a means for solving the above problems.
即ち、本発明は先に提案した流動層加熱装置における分
散板をベルトコンベヤ化することにある。That is, the present invention is to use the dispersion plate in the previously proposed fluidized bed heating device as a belt conveyor.
更に上記構成に加えて、コンベヤの原料搬出端部に近接
してベルト速度に同期して回転する羽根付ロータリバル
ブを設置する場合があり、必要ならばコンベヤ上の樹脂
の集積状況を光透過度等でチェックして前記コンベヤの
ベルト速度、ロータリバルブの回転速度を制御する。In addition to the above configuration, there may be a case where a rotary valve with blades that rotates in synchronization with the belt speed is installed near the raw material carrying-out end of the conveyor. Etc. to control the belt speed of the conveyor and the rotation speed of the rotary valve.
(作用) (1)流動層分散板を単純な平板からコンベヤベルトに
かえ、樹脂ペレットの供給量を変更するにあたっては、
ベルト速度を最適な速度に設定するだけで、原料樹脂を
良好な流動状態を保ちながら移送量が簡単に変更でき
る。(Operation) (1) When changing the fluidized bed dispersion plate from a simple flat plate to a conveyor belt and changing the supply amount of resin pellets,
By simply setting the belt speed to the optimum speed, it is possible to easily change the transfer amount while maintaining the material resin in a good flow state.
また、運転停止時もコンベヤベルト上にペレットは残留
せずに全て排出できるので掃除の手間も不要となる。Further, even when the operation is stopped, all the pellets can be discharged without remaining on the conveyor belt, which eliminates the need for cleaning.
(2)分散板を単純な多孔の傾斜板に代えてエンドレス
のベルトコンベヤとしたため、分散板の抵抗が増大する
ので熱風がコンベヤ内を通過し難くなり、その周囲を吹
き抜け、コンベヤを通過する風量が減少する虞れがある
が、コンベヤ出口にロータリバルブを設けることで、下
段のコンベヤ上にペレットの所定量を間欠的に落下さ
せ、熱風が良好にコンベヤを通過するようにし、熱風の
コンベヤ周囲からの吹き抜けを防止してエネルギー効率
を向上させる。(2) Since the dispersion plate is an endless belt conveyor instead of a simple porous inclined plate, the resistance of the dispersion plate increases, making it difficult for hot air to pass through the conveyor, and the amount of air that blows around it and passes through the conveyor. However, by installing a rotary valve at the conveyor outlet, a predetermined amount of pellets can be dropped intermittently on the lower conveyor so that hot air can pass through the conveyor well, Improve energy efficiency by preventing blow through.
(3)また、コンベヤ上に透過光検出センサを設けてお
けば、検出センサ信号によりコンベヤ速度を自動調整
し、良好な搬送状態時の透過光量になるよう制御するこ
とも可能となる。従って、コンベヤの手動調整は不要と
なり、運転操作を簡略化できる。(3) Further, if a transmitted light detection sensor is provided on the conveyor, it is possible to automatically adjust the conveyor speed based on the detection sensor signal and control so that the transmitted light amount is in a good carrying state. Therefore, it is not necessary to manually adjust the conveyor, and the operation can be simplified.
(実施例) 以下、本発明を図示実施例に基づき詳しく説明する。(Example) Hereinafter, the present invention will be described in detail based on illustrated examples.
第1図は本発明の代表的な実施例を示し、溶融可塑化装
置本体100の原料樹脂投入口には本実施例に係る流動層
加熱装置が連設される。FIG. 1 shows a typical embodiment of the present invention, and a fluidized-bed heating device according to this embodiment is connected to the raw material resin inlet of the melt plasticizer main body 100.
同図において、20は加熱槽であり、その下部に設けられ
た原料排出口は溶融可塑化装置本体100の原料樹脂投入
口に連通している。加熱槽20の上部には、可変速モータ
23により駆動されるフィーダ22を間に挟んでペレットR
の投入ホッパ21が設けられ、同じく加熱層20の内部に
は、多段のベルトコンベヤ(以下、分散板コンベヤとい
う。)28,28…が上下方向に配設され、各コンベヤ28,28
…は可変速モータ29により駆動されて回動する。In the figure, reference numeral 20 denotes a heating tank, and a raw material discharge port provided in the lower part thereof communicates with a raw material resin charging port of the melt plasticizing apparatus main body 100. A variable speed motor is installed above the heating tank 20.
Pellet R with a feeder 22 driven by 23 in between
, A multistage belt conveyor (hereinafter referred to as a dispersion plate conveyor) 28, 28 ... Is vertically arranged inside the heating layer 20.
... are rotated by being driven by the variable speed motor 29.
分散板コンベヤ28は可撓性ある多孔板、或は適当なメッ
シュのネット等から構成される。また、そのベルト速度
の調整はモータ回転調節装置34からの指令で各可変速モ
ータ29,29…の回転を変化させて行われる。The dispersion plate conveyor 28 is composed of a flexible perforated plate or a net of a suitable mesh. Further, the belt speed is adjusted by changing the rotation of each variable speed motor 29, 29 ... In response to a command from the motor rotation adjusting device 34.
各分散板コンベヤ28,28…のペレット下流側端部には、
所望数の羽根をもつロータリバルブ31,31…が回転軸を
分散板コンベヤ28,28…の幅方向に平行させて設けてあ
る。このロータリバルブ31,31点はそれぞれ分散板コン
ベヤ28,28…のベルト速度と同期するようにして回転す
る。また、各分散板コンベヤ28,28…のペレット下流側
上部には光透過センサ32,32…が設けられる。At the downstream end of the pellet of each dispersion plate conveyor 28, 28 ...
Rotary valves 31, 31 ... With a desired number of blades are provided with their axes of rotation parallel to the width direction of the dispersion plate conveyors 28, 28. The rotary valves 31 and 31 rotate in synchronization with the belt speeds of the distribution plate conveyors 28, 28 ... Further, light transmission sensors 32, 32 ... Are provided on the upper part of the downstream side of the pellets of the respective dispersion plate conveyors 28, 28.
なお、図中24aは加熱槽20の上部に形成された戻り空気
孔30につながるダクト、24bは加熱槽20の下部につなが
るダクトであり、各ダクトの間には送風機26、ヒータ2
5、温度センサ27が設置され熱風の循環路を形成し、温
度センサ27は温度調節装置につながる。これらの部分は
第3図に示し先に提案した溶融可塑化装置の対応部分と
実質的に差違がない。In the figure, 24a is a duct connected to the return air hole 30 formed in the upper part of the heating tank 20, 24b is a duct connected to the lower part of the heating tank 20, and a blower 26 and a heater 2 are provided between the ducts.
5. A temperature sensor 27 is installed to form a hot air circulation path, and the temperature sensor 27 is connected to a temperature control device. These parts are substantially the same as the corresponding parts of the previously proposed melt plasticizer shown in FIG.
以上の構成において、ホッパ21内の樹脂ペレットRは可
変速モータ23で駆動するフィーダ22により搬送され、可
変速モータ29により回転駆動される通風可能な最上段の
分散板コンベヤ28上に落下する。In the above configuration, the resin pellets R in the hopper 21 are conveyed by the feeder 22 driven by the variable speed motor 23, and fall onto the ventilation uppermost dispersion plate conveyor 28 which is rotationally driven by the variable speed motor 29.
一方、送風機26は加熱槽20内の空気をダクト24aから吸
込み、ヒータ25で所定温度に加熱してダクト24bから加
熱槽20内に吹き込んで循環させている。加熱槽20内に吹
き込まれた空気は、多段の分散板コンベヤ28,28…の孔
を通って吹き上がり、同コンベヤ上のペレットRを流動
状態にして急速に加熱する。各コンベヤ28のペレット下
流端部にはロータリバルブ31がコンベヤ28と同期して回
転しており、ペレットRを間欠的に落下させて、次段の
コンベヤ上のペレットRの分散を良好にして熱風の通過
性を確保すると同時に、熱風がコンベヤベルトの端部か
らバイパスすることを防止している。On the other hand, the blower 26 sucks the air in the heating tank 20 through the duct 24a, heats it to a predetermined temperature with the heater 25, and blows it into the heating tank 20 through the duct 24b for circulation. The air blown into the heating tank 20 is blown up through the holes of the multistage dispersion plate conveyors 28, 28 ..., and rapidly heats the pellets R on the conveyor in a fluidized state. At the downstream end of the pellets of each conveyor 28, a rotary valve 31 is rotating in synchronization with the conveyor 28, and the pellets R are dropped intermittently to improve the dispersion of the pellets R on the next-stage conveyor and hot air. The hot air is prevented from bypassing from the end of the conveyor belt.
各分散板コンベヤ28,28…の上部の設けた光透過センサ3
2は光の透過量により流動状況が判断できるため、同セ
ンサ出力に基づいて例えば透過量が少でペレット量が過
多のときはコンベヤ速度を増大させ、透過量が大でペレ
ット量が過少のときはコンベヤ速度を減少させるように
コンベヤ速度を自動調整することが可能である。Light transmission sensor 3 provided on top of each dispersion plate conveyor 28, 28 ...
2 indicates the flow status based on the amount of transmitted light.For example, if the amount of transmitted light is too small and the amount of pellets is too large, increase the conveyor speed based on the sensor output, and if the amount of transmitted light is too large and the amount of pellets is too small, Is capable of automatically adjusting the conveyor speed to reduce the conveyor speed.
分散板コンベヤ上で流動し所定温度に上昇したペレット
Rは、溶融可塑化装置本体100に入り溶融する。図示例
では分散板コンベヤ28を3段に設けた場合であるが、同
コンベヤは1段以上何段でもよい。The pellets R that have flowed on the dispersion plate conveyor and have risen to a predetermined temperature enter the melting plasticizer main body 100 and melt. In the illustrated example, the dispersion plate conveyor 28 is provided in three stages, but the conveyor may have one or more stages.
(発明の効果) 以上、詳細に説明した如く本発明によれば可塑化装置本
体に原料樹脂を導入する以前に流動層の状態で予熱する
ため、エネルギー効率が向上されると共に、加熱装置の
インライン化が可能になることは勿論であり、特に加熱
槽内の通風性あるベルトコンベヤ上でペレットを流すた
め、ペレット加熱条件の変更時にも、その運転調整が容
易になり、更に作業終了時においても加熱槽内にペレッ
トが残存しないため、掃除が不要となる等、きわめて優
れた効果を奏する。(Effects of the Invention) As described in detail above, according to the present invention, since the raw material resin is preheated in the fluidized bed state before being introduced into the main body of the plasticizer, energy efficiency is improved and the in-line heating device is improved. Of course, since the pellets are flown on the ventilation belt conveyor in the heating tank, it is easy to adjust the operation even when the pellet heating conditions are changed, and even when the work is completed. Since pellets do not remain in the heating tank, cleaning is not required, which is extremely effective.
第1図は本発明の代表的な実施例である流動層式ペレッ
ト加熱装置を備える溶融可塑化装置の概略を示す側断面
図、第2図は従来の充填層式ペレット加熱装置と可塑化
装置の関係を示す概略側断面図、第3図は先に提案した
流動層式ペレット加熱装置を備える溶融可塑化装置の概
略側断面図である。 図の主要部分の説明 20……加熱槽 25……ヒータ 26……送風機 27……熱風温度センサ 28……分散板コンベヤ 29……可変速モータ 30……戻り空気孔 31……ロータリバルブ 32……光透過センサ 34……モータ回転調節装置 100……溶融可塑化装置本体FIG. 1 is a side sectional view showing an outline of a melting and plasticizing device equipped with a fluidized bed type pellet heating device which is a typical embodiment of the present invention, and FIG. 2 is a conventional packed bed type pellet heating device and plasticizing device. FIG. 3 is a schematic side sectional view showing the relationship of FIG. 3, and FIG. 3 is a schematic side sectional view of a melt plasticizing apparatus provided with the previously proposed fluidized bed pellet heating apparatus. Description of main parts of the figure 20 …… Heating tank 25 …… Heater 26 …… Blower 27 …… Hot air temperature sensor 28 …… Dispersion plate conveyor 29 …… Variable speed motor 30 …… Return air hole 31 …… Rotary valve 32… … Light transmission sensor 34 …… Motor rotation adjustment device 100 …… Melt plasticizer main unit
Claims (1)
いて、通風性ある部材により構成し回動するエンドレス
ベルトを内部に備え、原料樹脂を同ベルト上で層状に移
動させながら加熱する流動層加熱装置を溶融可塑化装置
本体の原料供給部に連設することを特徴とする溶融可塑
化装置。1. A fluidized bed heating device in a thermoplastic melting and plasticizing device, which comprises an endless belt which is composed of a ventilation member and which rotates and which heats a raw material resin while moving it in layers on the belt. A melt plasticizer, which is connected to a raw material supply unit of the melt plasticizer main body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63127005A JPH074833B2 (en) | 1988-05-26 | 1988-05-26 | Melt plasticizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63127005A JPH074833B2 (en) | 1988-05-26 | 1988-05-26 | Melt plasticizer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01297226A JPH01297226A (en) | 1989-11-30 |
JPH074833B2 true JPH074833B2 (en) | 1995-01-25 |
Family
ID=14949326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63127005A Expired - Fee Related JPH074833B2 (en) | 1988-05-26 | 1988-05-26 | Melt plasticizer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH074833B2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2001255104A1 (en) * | 2000-05-03 | 2001-11-12 | Dsm N.V. | Method for the extrusion of a fibre-filled polymer composition |
NL1015100C2 (en) * | 2000-05-03 | 2001-11-06 | Dsm Nv | Extrusion of polymer composition filled with brittle fibers having specified length to obtain molded article by preheating polymer composition to specified temperature before feeding and extruding |
KR100418831B1 (en) * | 2001-06-12 | 2004-02-19 | 엘지전선 주식회사 | Preheating apparatus for liquid rubber injection |
KR100443646B1 (en) * | 2001-10-25 | 2004-08-09 | 금호타이어 주식회사 | The Conveyor Device Adequate for Cooling Pellet-Shaped Rubber |
JP4786606B2 (en) * | 2007-07-26 | 2011-10-05 | 住友重機械工業株式会社 | Material feeder for molding machine |
CN113459457A (en) * | 2021-07-01 | 2021-10-01 | 刘亮亮 | Preparation facilities of HDPE tubular product |
-
1988
- 1988-05-26 JP JP63127005A patent/JPH074833B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH01297226A (en) | 1989-11-30 |
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