JPH0417224Y2 - - Google Patents

Info

Publication number
JPH0417224Y2
JPH0417224Y2 JP1985053178U JP5317885U JPH0417224Y2 JP H0417224 Y2 JPH0417224 Y2 JP H0417224Y2 JP 1985053178 U JP1985053178 U JP 1985053178U JP 5317885 U JP5317885 U JP 5317885U JP H0417224 Y2 JPH0417224 Y2 JP H0417224Y2
Authority
JP
Japan
Prior art keywords
pin
screw
kneading
barrel
protrusion
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
Application number
JP1985053178U
Other languages
Japanese (ja)
Other versions
JPS61171525U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1985053178U priority Critical patent/JPH0417224Y2/ja
Publication of JPS61171525U publication Critical patent/JPS61171525U/ja
Application granted granted Critical
Publication of JPH0417224Y2 publication Critical patent/JPH0417224Y2/ja
Expired legal-status Critical Current

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
    • B29C48/68—Barrels or cylinders
    • B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
    • B29C48/687—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having projections with a short length in the barrel direction, e.g. pins
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/405—Intermeshing co-rotating screws
    • 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
    • B29C48/505—Screws
    • B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Description

【考案の詳細な説明】 （産業上の利用分野） 本考案はプラスチツク、ゴム、食品等の押出し
に適用できる多軸押出機の混練調整装置に関する
ものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a kneading adjustment device for a multi-screw extruder that can be applied to extrusion of plastics, rubber, foods, etc.

（従来の技術） 従来多軸押出機において、処理する物質の混練
性能を高める手段としては、種々のミキシングセ
クシヨンはあるが、最大の欠点は運転中にその機
能を調整する方法がないことであり、混練性能を
変える場合は、面倒でも運転を停止してスクリユ
を交換する必要があつた。(Prior art) Conventional multi-screw extruders have various mixing sections as a means of improving the kneading performance of the materials to be processed, but the biggest drawback is that there is no way to adjust the function during operation. However, if you wanted to change the kneading performance, you had to stop the operation and replace the screw, even if it was a pain.

また従来混練性能を上げる手段として、混練部
のあとに、例えばバレル及びスクリユに各々円錐
部を設け（この部分のスクリユはフライトなし）、
バレルとスクリユ間の隙間、即ち被処理物の流路
断面を変えて圧力を調整する方法があるが、隙間
そのものに混練機能がある訳ではないので、圧力
損失をこういう形で費やすのは、余り得策とは言
えなかつた。 Conventionally, as a means to improve kneading performance, for example, a conical part is provided in the barrel and the screw after the kneading section (the screw in this part has no flight).
There is a way to adjust the pressure by changing the gap between the barrel and screw, that is, by changing the cross section of the flow path of the material to be processed, but since the gap itself does not have a kneading function, it is not recommended to waste pressure loss in this way. I couldn't say it was a good idea.

（考案が解決しようとする課題） 本考案は、従来の多軸押出機における混練機能
を変える場合に、運転を停止する必要があるなど
の問題点を解決しようとするものである。(Problems to be Solved by the Invention) The present invention attempts to solve problems such as the need to stop operation when changing the kneading function in a conventional multi-screw extruder.

（課題を解決するための手段） このため本考案は、多軸押出機において、バレ
ル内への突出量が自由に変えられるピンを、バレ
ルに装着したブツシユに摺動可能に設けると共
に、同ピンは突出部の上下の直径がほぼ等しく、
かつ先端が軸心と直交する平面に形成されてお
り、混練セクシヨンの直後又は途中に、円周方向
に少なくとも２個以上、かつ１列以上設けると共
に、前記ピンに対向するスクリユ部分の断面を真
円又は真円に近い円になるよう形成してなるもの
で、これを課題解決のための手段とするものであ
る。(Means for Solving the Problems) For this reason, the present invention provides a multi-screw extruder with a pin that can freely change the amount of protrusion into the barrel and is slidable on a bush attached to the barrel. The diameter of the top and bottom of the protrusion is almost equal,
The tip of the screw is formed in a plane perpendicular to the axis, and at least two or more screws and one row or more are provided in the circumferential direction immediately after or in the middle of the kneading section, and the cross section of the screw portion facing the pin is straight. It is formed into a circle or a nearly perfect circle, and is used as a means to solve problems.

（作用） バレル内にピンが突出していることにより、処
理される物質が積極的に攪拌されて分散機能が向
上すると同時に、スクリユが回転することによ
り、スクリユとピンの間に高い剪断作用が働き、
混練可塑化機能が作用する。またピンの突出量を
変えることにより、分散機能や剪断作用の程度を
コントロールすることができ、ピンを上下しても
ピンとブツシユ間の隙間は全く変わらないので、
バレル内に樹脂等の滞留が発生することはなく、
かつピンの先端が軸心と直交する平面に形成され
ているので、原料について大きな剪断を与えるこ
とができ、混練効果を高めることができる。(Function) The protruding pin inside the barrel actively stirs the material to be treated and improves its dispersion function.At the same time, as the screw rotates, a high shearing action is exerted between the screw and the pin. ,
Kneading and plasticizing function works. In addition, by changing the amount of protrusion of the pin, the degree of dispersion and shearing action can be controlled, and even if the pin is moved up or down, the gap between the pin and the bushing does not change at all.
There is no accumulation of resin etc. inside the barrel.
In addition, since the tip of the pin is formed on a plane perpendicular to the axis, it is possible to apply a large shear to the raw material, thereby increasing the kneading effect.

（実施例） 以下本考案の実施例を図面について説明する
と、第１図〜第３図は本考案の実施例を示す。図
においてスクリユ３は螺旋状の溝を切つた棒状の
もので、押出機９のバレル４内に設けられ、被処
理物の輸送、可塑化のためにねじ状のフライト５
及びその中間の混練部には図の如きミキシングデ
イスク８を有しており、かつ一端に第１図の右か
ら左へ被処理物を処理すべく回転可能な駆動装置
が設けられている。(Example) Examples of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show examples of the present invention. In the figure, the screw 3 is a rod-shaped rod with a spiral groove cut into it, and is installed inside the barrel 4 of the extruder 9, and has screw-shaped flights 5 for transporting and plasticizing the processed material.
The kneading section in the middle thereof has a mixing disk 8 as shown in the figure, and a drive device is provided at one end so as to be able to rotate the workpiece from right to left in FIG.

また前記混練部には、バレル４内への突出量が
自由に変えられるピン１を、バレル４に装着した
ブツシユ２を介して円周方向に少なくとも２個以
上、かつ１列以上設けてあり、また同ピン１はロ
ツク用ナイフ７によつてバレル４に固着されてい
る。ピン１は突出部の上下の直径がほぼ等しく、
かつ先端が軸心と直交する平面に形成されてお
り、ピン１に対向するスクリユ３には、真円又は
真円に近い円に加工された切欠部６を有する。 Further, in the kneading section, at least two or more pins 1 and one or more rows of pins 1 whose protrusion amount into the barrel 4 can be freely changed are provided in the circumferential direction via a bush 2 attached to the barrel 4, The pin 1 is also fixed to the barrel 4 by a locking knife 7. Pin 1 has approximately the same diameter at the top and bottom of the protrusion,
The tip of the screw 3 is formed on a plane perpendicular to the axis, and the screw 3 facing the pin 1 has a notch 6 machined into a perfect circle or a nearly perfect circle.

次に以上の如く構成された実施例について作用
を説明すると、バレル４内へピン１が突出してい
ることにより、処理される物質が積極的に攪拌さ
れて分散機能が向上すると同時に、スクリユが回
転することにより、スクリユ３とピン１の間に高
い剪断作用が働き、混練、可塑化機能が得られ
る。またピン１の突出量を変えることにより、分
散機能や剪断作用の程度をコントロールすること
が出来ると同時に、抵抗の程度が変わることによ
り発生する圧力をコントロールすることも可能と
なり、混練機能が大巾にアツプする。またピンは
突出部の上下の直径がほぼ等しいので、ピンを上
下させてもピンとブツシユ間の隙間は全く変化し
ない。 Next, to explain the operation of the embodiment configured as above, the pin 1 protrudes into the barrel 4, so that the substance to be treated is actively stirred and the dispersion function is improved, and at the same time, the screw rotates. By doing so, a high shearing action is exerted between the screw 3 and the pin 1, and kneading and plasticizing functions are obtained. In addition, by changing the amount of protrusion of pin 1, it is possible to control the degree of dispersion function and shearing action, and at the same time, it is also possible to control the pressure generated by changing the degree of resistance, which greatly increases the kneading function. Applies to. Furthermore, since the pin has approximately the same diameter at the top and bottom of the protrusion, the gap between the pin and the bushing does not change at all even if the pin is moved up or down.

（考案の効果） 以上詳細に説明した如く本考案は構成されてい
るので、ピンの突出量をコントロールすることに
より、運転中でも混練機能と圧力を調整でき、所
望の混練性能を得ることが出来る。また本考案は
バレルに装着したブツシユに摺動可能に設けられ
たピンは上下の直径が等しいので、ピンを上下し
てもブツシユとの間の隙間は変化しないので、滞
留個所が発生するなどの問題は生じない。またピ
ンの先端を軸心に直交する平面としたので、ピン
の突出部の上下の直径がほぼ等しいことと相俟つ
て、ピン先端部の断面積は大きく、原料に大きな
剪断を与えることができ、大きな混練効果が得ら
れる。(Effects of the Invention) Since the present invention is configured as explained in detail above, by controlling the amount of protrusion of the pins, the kneading function and pressure can be adjusted even during operation, and the desired kneading performance can be obtained. In addition, in this invention, the pin that is slidably installed on the bushing attached to the barrel has the same diameter at the top and bottom, so even if the pin is moved up and down, the gap between it and the bushing does not change, so there is no possibility of stagnation occurring. No problems arise. In addition, since the tip of the pin is a plane perpendicular to the axis, the diameters of the top and bottom of the protruding part of the pin are almost equal, and the cross-sectional area of the tip of the pin is large, making it possible to apply large shear to the raw material. , a great kneading effect can be obtained.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の実施例を示す多軸押出機の混
練調整装置の平面断面図、第２図は第１図のＡ〜
Ａ断面図、第３図は第２図のスクリユの詳細側断
面図である。 図の主要部分の説明、１……ピン、２……ブツ
シユ、３……スクリユ、４……バレル、６……切
欠部、７……ロツク用ナツト、９……押出機。 FIG. 1 is a plan sectional view of a kneading adjustment device of a multi-screw extruder showing an embodiment of the present invention, and FIG.
A sectional view, FIG. 3 is a detailed side sectional view of the screw shown in FIG. 2. Explanation of the main parts of the figure: 1...pin, 2...bush, 3...screw, 4...barrel, 6...notch, 7...lock nut, 9...extruder.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 多軸押出機において、バレル内への突出量が自
由に変えられるピンを、バレルに装着したブツシ
ユに摺動可能に設けると共に、同ピンは突出部の
上下の直径がほぼ等しく、かつ先端が軸心と直交
する平面に形成されており、混練セクシヨンの直
後又は途中に、円周方向に少なくとも２個以上、
かつ１列以上設けると共に、前記ピンに対向する
スクリユ部分の断面を真円又は真円に近い円にな
るよう形成してなることを特徴とする多軸押出機
の混練調整装置。 In a multi-screw extruder, a pin that can freely change the amount of protrusion into the barrel is slidably provided on a bush attached to the barrel, and the pin has approximately the same diameter at the top and bottom of the protrusion, and the tip has a shaft. are formed in a plane perpendicular to the center, and immediately after or in the middle of the kneading section, at least two or more in the circumferential direction,
A kneading adjustment device for a multi-screw extruder, characterized in that one or more rows are provided, and the cross section of the screw portion facing the pin is formed to be a perfect circle or a circle close to a perfect circle.
JP1985053178U 1985-04-10 1985-04-10 Expired JPH0417224Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985053178U JPH0417224Y2 (en) 1985-04-10 1985-04-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985053178U JPH0417224Y2 (en) 1985-04-10 1985-04-10

Publications (2)

Publication Number Publication Date
JPS61171525U JPS61171525U (en) 1986-10-24
JPH0417224Y2 true JPH0417224Y2 (en) 1992-04-17

Family

ID=30573797

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985053178U Expired JPH0417224Y2 (en) 1985-04-10 1985-04-10

Country Status (1)

Country Link
JP (1) JPH0417224Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0724564B2 (en) * 1985-09-06 1995-03-22 有限会社松兵衛 Extrusion molding equipment for food materials

Also Published As

Publication number Publication date
JPS61171525U (en) 1986-10-24

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