JPH046884Y2 - - Google Patents
Info
- Publication number
- JPH046884Y2 JPH046884Y2 JP16410087U JP16410087U JPH046884Y2 JP H046884 Y2 JPH046884 Y2 JP H046884Y2 JP 16410087 U JP16410087 U JP 16410087U JP 16410087 U JP16410087 U JP 16410087U JP H046884 Y2 JPH046884 Y2 JP H046884Y2
- Authority
- JP
- Japan
- Prior art keywords
- extruder
- discharge port
- eccentric cams
- followers
- slurry
- 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
Links
- 239000002002 slurry Substances 0.000 description 6
- 239000012783 reinforcing fiber Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Press-Shaping Or Shaping Using Conveyers (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は押出機の吐出口に関し、詳しくはセ
メント等を主原料とする無機質押出成形に使用さ
れる押出機の吐出口に関する。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a discharge port of an extruder, and more specifically, to a discharge port of an extruder used for extrusion molding of an inorganic substance whose main raw material is cement or the like.
従来、セメント等を主原料とする無機質製品を
押出成形する場合、混練押出機より吐出されるス
ラリーを一たん真空室へ導入し、脱気することが
行なわれるが、この真空室へ材料を吐出する出口
には網状スクリーンが設けられ、このスクリーン
を通して吐出されるスラリーをカツターにより細
かく裁断し、内部に含まれる気泡を真空室内へ露
出させることが行なわれる。
Conventionally, when extruding inorganic products whose main raw material is cement etc., the slurry discharged from a kneading extruder is once introduced into a vacuum chamber and degassed. A mesh screen is provided at the outlet of the slurry, and the slurry discharged through this screen is cut into small pieces by a cutter to expose the air bubbles contained inside into the vacuum chamber.
ところで、セメントスラリーには、補強繊維が
通常混入されているため、この補強繊維が前記ス
クリーンに引掛かりやすく、わずかでもからみ付
きがあると、これを起点として塊が成長し、目詰
まりを起こしたり、あるいは、かなり成長した塊
が何かのはずみで落下したりすると、押出機の成
形ダイに詰まり、製品不良を起こすことが有る欠
点が有つた。
By the way, since reinforcing fibers are usually mixed in cement slurry, these reinforcing fibers tend to get caught in the screen, and if there is even a slight entanglement, lumps will grow from this as a starting point, causing clogging. Alternatively, if a lump that has grown considerably falls due to some force, it may clog the molding die of the extruder, resulting in a defective product.
このため、無機質製品の押出機は頻繁にスクリ
ーンの清浄を行なう必要が有り、生産効率の向上
に支障を来す欠点が有つた。 For this reason, the extruder for inorganic products requires frequent cleaning of the screen, which has the drawback of hindering improvement in production efficiency.
この考案は上記問題点に鑑み、補強繊維のから
みに起因する支障を無くし、常に安定した状態で
スラリーを押出供給出来る押出機の吐出口を提供
することを目的としてなされたものである。
In view of the above-mentioned problems, this invention was made with the aim of eliminating the trouble caused by entanglement of reinforcing fibers and providing a discharge port of an extruder that can extrude and supply slurry in a stable state at all times.
即ち、この考案の押出機の吐出口は押出機のス
クリユー軸先端に少なくとも軸方向に２つ以上の
偏心カムが並設され、該偏心カムには扇形をなし
円周方向に配列された従動子が径方向摺動可能に
支持されて成ることを特徴とするものである。
That is, the discharge port of the extruder of this invention has two or more eccentric cams arranged in parallel at least in the axial direction at the tip of the screw shaft of the extruder, and the eccentric cams have fan-shaped followers arranged in the circumferential direction. is characterized in that it is supported so as to be slidable in the radial direction.
次に、この考案を実施例により説明する。 Next, this invention will be explained using examples.
第１図はこの考案の実施例の断面図、第２図は
第１図の−線断面図である。 FIG. 1 is a sectional view of an embodiment of this invention, and FIG. 2 is a sectional view taken along the line -- in FIG.
この考案の押出機の吐出口Ａは押出機１のスク
リユー軸２先端に軸方向に３つにわたつて偏心カ
ム３Ａ，３Ｂ、３Ｃが並設され、この偏心カム３
Ａ……３Ｃには第１図に示すように扇形をなし、
円周方向に配列された多数の従動子４……４が径
方向摺動可能に支持されて構成されている。 The discharge port A of the extruder of this invention has three eccentric cams 3A, 3B, and 3C arranged in parallel in the axial direction at the tip of the screw shaft 2 of the extruder 1.
A...3C has a fan shape as shown in Figure 1,
A large number of followers 4...4 arranged in the circumferential direction are supported so as to be slidable in the radial direction.
尚、図中５……５は従動子４……４を支持する
ガイドピンを示し、従動子４……４を貫通して設
けられ、外部ケーシング６内面に固定されてい
る。また図中７は従動子４……４を押さえるばね
を示し、従動子４……４内に水密に配設される。 In the figure, reference numerals 5...5 indicate guide pins that support the driven elements 4...4, which are provided to penetrate through the driven elements 4...4 and are fixed to the inner surface of the outer casing 6. Further, reference numeral 7 in the figure indicates a spring that presses down the driven elements 4...4, and is disposed in a watertight manner inside the driven elements 4...4.
押出機のスクリユー軸２を回転させれば、これ
に伴つて材料Ｂは吐出口へと押出される。
When the screw shaft 2 of the extruder is rotated, the material B is extruded to the discharge port.
同時に吐出口ではスクリユー軸２先端の偏心カ
ム３Ａ……３Ｃに接触する従動子４……４が径方
向にそれぞれアトランダムに往復移動する。 At the same time, at the discharge port, followers 4 . . . 4 contacting eccentric cams 3A .
このとき、各従動子４……４に補強繊維がから
み付くことが有つても、この従動子４の動きによ
り簡単に脱落し、目詰まり等が防止される。 At this time, even if the reinforcing fibers become entangled with each of the followers 4, they easily fall off due to the movement of the followers 4, thereby preventing clogging and the like.
また、吐出量は従動子４……４により調節さ
れ、従つて従来のスクリーンも必要なくなる。 Further, the discharge amount is regulated by the followers 4...4, so that the conventional screen is not required.
この考案は以上のように構成されているため、
長時間運転を続けても繊維等が吐出口にからみ付
くことが無く、しかも従動子の動きによりスラリ
ーも細かく裁断されるのでカツターおよびスクリ
ーンも必要ないなど、種々の実用的効果を有す
る。
This idea is structured as above, so
It has various practical effects, such as preventing fibers from getting entangled in the discharge port even if the operation is continued for a long time, and furthermore, the slurry is cut into small pieces by the movement of the follower, so there is no need for cutters or screens.
第１図はこの考案に実施例の断面図、第２図は
第１図の−線断面図である。
FIG. 1 is a sectional view of an embodiment of this invention, and FIG. 2 is a sectional view taken along the line -- in FIG.
Claims (1)
に２つ以上の偏心カムが並設され、該偏心カムに
は扇形をなし円周方向に配列された従動子が径方
向摺動可能に支持されて成ることを特徴とする押
出機の吐出口。 Two or more eccentric cams are arranged in parallel at least in the axial direction at the tip of the screw shaft of the extruder, and fan-shaped followers arranged in the circumferential direction are supported on the eccentric cams so as to be slidable in the radial direction. A discharge port of an extruder characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16410087U JPH046884Y2 (en) | 1987-10-26 | 1987-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16410087U JPH046884Y2 (en) | 1987-10-26 | 1987-10-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0168805U JPH0168805U (en) | 1989-05-08 |
| JPH046884Y2 true JPH046884Y2 (en) | 1992-02-25 |
Family
ID=31449411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16410087U Expired JPH046884Y2 (en) | 1987-10-26 | 1987-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH046884Y2 (en) |
-
1987
- 1987-10-26 JP JP16410087U patent/JPH046884Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0168805U (en) | 1989-05-08 |
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