JPH0730346Y2 - Plastic extruder - Google Patents
Plastic extruderInfo
- Publication number
- JPH0730346Y2 JPH0730346Y2 JP1989127716U JP12771689U JPH0730346Y2 JP H0730346 Y2 JPH0730346 Y2 JP H0730346Y2 JP 1989127716 U JP1989127716 U JP 1989127716U JP 12771689 U JP12771689 U JP 12771689U JP H0730346 Y2 JPH0730346 Y2 JP H0730346Y2
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- housing
- raw material
- cylinder
- material supply
- 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 - Lifetime
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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/834—Cooling
-
- 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
- B29C48/681—Barrels or cylinders for single 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
- B29C48/68—Barrels or cylinders
- B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
- B29C48/686—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having grooves or cavities
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/832—Heating
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、プラスチック押出成形機、ゴム押出機、射出
成形機等に適用されるプラスチック押出機に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to a plastic extruder applied to a plastic extruder, a rubber extruder, an injection molding machine or the like.
（従来の技術） 押出機には、従来からその構造面において様々な改良が
加えられている。(Prior Art) Various improvements have been conventionally added to the structure of extruders.
第３図に示す構造もその１つである。同図に示す押出機
では、原料供給口部と一体の供給ゾーンは、これに連な
る溶融ゾーンを構成するシリンダ16とは別個のブロック
10から成り、同ブロック10は円筒状のハウジング11と、
同ハウジング11に段部を介して嵌挿されたスリーブ12と
から構成される。前記ハウジング11とスリーブ12は互い
に連通する原料供給口13を有し、ハウジング11はスリー
ブ12を密嵌状態で溶融ゾーンを構成するシリンダ16とボ
ルト21等の結合手段により結合固定される。The structure shown in FIG. 3 is one of them. In the extruder shown in the figure, the supply zone integrated with the raw material supply port is a block separate from the cylinder 16 that constitutes the melting zone continuous with this.
The block 10 comprises a cylindrical housing 11 and
The housing (11) is composed of a sleeve (12) inserted through a step. The housing 11 and the sleeve 12 have a raw material supply port 13 that communicates with each other, and the housing 11 is coupled and fixed by a coupling means such as a cylinder 16 and a bolt 21 that form a melting zone when the sleeve 12 is tightly fitted.
スリーブ12の外周面には螺旋状に溝が形成され、ハウジ
ング11の内面との間に冷却水通路19を形成する。従って
ハウジング11には、その半径方向に冷却水の出入口が形
成されている。またスリーブ12の内面には、前記供給口
13より供給される原料ペレットが、スリーブ内で回転す
るスクリュ20により容易に前方（図中左方向）に送り込
まれるように、軸方向の浅い溝14が数条設けられてい
る。このため、原料ペレットは水冷却されながらスクリ
ュ20の回転により、ペレットを溶かすことなく前記浅い
溝14に沿って軸方向に移送されることになる。A groove is formed in a spiral shape on the outer peripheral surface of the sleeve 12, and a cooling water passage 19 is formed between the sleeve 12 and the inner surface of the housing 11. Therefore, the housing 11 is formed with an inlet / outlet of cooling water in its radial direction. Also, on the inner surface of the sleeve 12, the supply port
Several shallow grooves 14 are provided in the axial direction so that the raw material pellets supplied from 13 can be easily fed forward (to the left in the drawing) by the screw 20 rotating in the sleeve. Therefore, the raw material pellets are transported in the axial direction along the shallow groove 14 without melting the pellets by the rotation of the screw 20 while being cooled by water.
スリーブ12の内面に形成される上記浅い溝14の形状は、
供給口13側で最も深く、原料ペレットの送り出し端側15
ほど浅くなり、シリンダ内径に一致する勾配となってい
る。The shape of the shallow groove 14 formed on the inner surface of the sleeve 12 is
Deepest on the supply port 13 side, the feed end side 15 of the raw material pellets
It becomes shallower and has a slope that matches the inner diameter of the cylinder.
17は溶融ゾーンを形成する加熱装置であり、シリンダ16
は同加熱装置17によって囲繞されている。17 is a heating device that forms a melting zone, and a cylinder 16
Are surrounded by the heating device 17.
図示例は、浅い溝付きのスリーブをハウジング内面に密
嵌する場合について述べたが、スリーブとハウジングを
一体にした、すなわちシリンダ内面に直接浅い溝を形成
することもある。Although the illustrated example describes the case where the sleeve having the shallow groove is tightly fitted to the inner surface of the housing, the sleeve and the housing may be integrated, that is, the shallow groove may be directly formed on the inner surface of the cylinder.
（考案が解決しようとする課題） このように従来の原料供給ゾーンは、シリンダ内面に直
接溝を設けたり、或いは図示例の如く溝付のスリーブを
円筒状ハウジングに密嵌させる方式を採用している。(Problems to be solved by the invention) As described above, in the conventional raw material supply zone, a groove is provided directly on the inner surface of the cylinder, or a method in which a grooved sleeve is tightly fitted in a cylindrical housing as shown in the figure. There is.
ところで、この溝付シリンダの原料喰い込み特性は溝形
状や溝本数によって大巾に異なるものであるが、既述の
とおりその構造上一度セットすると容易には交換するこ
とが出来ない構造となっている。にも拘らず使用原料や
運転条件によって、原料の喰い込み能力を変更したい事
が多々生じる。そこで、これを交換しようとすると、例
えば図示例の場合にはボルト21を外してスリーブ12、ハ
ウジング11等を分解する必要があり、その構造上、相当
に手間がかかるという欠点があった。By the way, the raw material biting characteristics of this grooved cylinder vary greatly depending on the groove shape and the number of grooves, but as already mentioned, due to its structure, it cannot be easily replaced once set. There is. Nevertheless, depending on the raw materials used and the operating conditions, there are many occasions when it is desired to change the raw material feeding ability. Therefore, if this is to be replaced, for example, in the case of the illustrated example, it is necessary to remove the bolt 21 and disassemble the sleeve 12, the housing 11, and the like, and there is a disadvantage in that it takes a lot of time and labor due to its structure.
本考案はかかる点を解決すべくなされたものであり、原
料の喰い込み能力の変更を容易になし得る押出機の構造
を得ようとするものである。The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to obtain a structure of an extruder that can easily change the feeding ability of raw materials.
（課題を解決するための手段） そのための構造として、本考案は原料供給口を有し、ス
クリュの数ピッチ分の長さに構成され、内面の軸方向に
複数条の溝を形成したスリーブを、原料供給部のハウジ
ング内に嵌挿固定してなるプラスチック押出機におい
て、前記スリーブを前記ハウジングに対し脱着可能にす
ると共に、同ハウジングのスクリュ駆動側に前記スリー
ブ抜取用スペースを形成するもので、この構成をもって
上記課題の解決手段とするものである。(Means for Solving the Problem) As a structure therefor, the present invention is a sleeve having a raw material supply port, having a length of several pitches of a screw, and having a plurality of grooves formed in the axial direction of the inner surface. In a plastic extruder fitted and fixed in a housing of a raw material supply unit, the sleeve can be attached to and detached from the housing, and the sleeve extraction space is formed on the screw drive side of the housing. This configuration serves as a means for solving the above problems.
（作用） 溝付きシリンダはその溝形状、溝本数によって原料の喰
い込み能力が大巾に異なってくる。また、使用原料や運
転条件によってもその最適溝形状は異なるが、従来は既
述した如く一旦セットしたものは簡単には変更出来ない
構造となっている。(Function) In the grooved cylinder, the raw material feeding ability varies greatly depending on the groove shape and the number of grooves. Further, although the optimum groove shape varies depending on the raw material used and the operating conditions, conventionally, as already described, the structure once set cannot be easily changed.
本考案は上記構成としたため、原料の喰い込み能力を変
更したいときは、ハウジングの駆動側抜取り用スペース
内でボルト等を外し、溝付スリーブを同スペース内に抜
き出し、更に同スペース内から機外に取り出して、別途
用意された最適な喰い込み能力を有する溝付スリーブと
交換する。Since the present invention has the above-mentioned configuration, when it is desired to change the raw material feeding capacity, remove the bolts, etc. in the drive side extraction space of the housing, pull out the grooved sleeve into the same space, and then from the same space outside the machine. And replace it with a separately prepared grooved sleeve that has the optimum biting ability.
このときのスペース部構造は、当業者であれば様々に設
計が可能であり、例えばシリンダ状スペース部の側面に
開閉自在な窓を設け、同窓から作業を行えるようにして
も良く、またスリーブ自体も軸方向に２つ割りに構成す
ることができ、この場合はスクリュ等をシリンダから抜
き取ることなく溝付スリーブの交換を可能にする。The space portion structure at this time can be variously designed by those skilled in the art. For example, an openable / closable window may be provided on the side surface of the cylindrical space portion so that work can be performed from the window, or the sleeve itself. Can also be configured in two in the axial direction, in which case the grooved sleeve can be replaced without removing the screw or the like from the cylinder.
（実施例） 以下、本考案を図示実施例に基づいて詳細に説明する。(Embodiment) Hereinafter, the present invention will be described in detail based on an illustrated embodiment.
第１図は本考案の代表的な実施例である押出機の原料供
給ゾーンの断面図であり、第２図は同図のＡ−Ａ断面図
である。FIG. 1 is a sectional view of a raw material supply zone of an extruder which is a typical embodiment of the present invention, and FIG. 2 is a sectional view taken along the line AA of FIG.
図から明らかな如く本実施例においても、原料供給ゾー
ンと原料溶融ゾーンのシリンダ部は別個に形成されてお
り、しかも原料供給ゾーンのシリンダ部も従来と同様に
円筒状のハウジング３とそれに密嵌されるスリーブ４と
から構成される。As is apparent from the figure, also in this embodiment, the cylinder portions of the raw material supply zone and the raw material melting zone are formed separately, and the cylinder portion of the raw material supply zone is also closely fitted to the cylindrical housing 3 as in the conventional case. And a sleeve 4 that is formed.
ここで、従来と実質的に相違する点は、ハウジング３の
長さが従来の略２倍となっている点、ハウジング３の内
径がスリーブ４の密嵌部以外で大径とされている点、ス
リーブ４の減速機側端部にフランジが形成されている
点、並びにスリーブ４の溶融ゾーン側端部には段部を形
成していない点であり、その他の部分は従来装置と実質
的に同一である。すなわち、ハウジング３には冷却水路
５が形成され、スリーブ４の内面には軸方向に浅い溝９
が数条形成されている。また、溶融ゾーンのシリンダ２
とスリーブ４の内径は同一であり、その内面とスクリュ
１間には所定のクリアランスが設けられる。Here, what is substantially different from the conventional one is that the length of the housing 3 is approximately twice that of the conventional one, and that the inner diameter of the housing 3 is large except for the tight fitting portion of the sleeve 4. A point where a flange is formed at the end of the sleeve 4 on the speed reducer side, and a point where a step is not formed at the end of the sleeve 4 on the melting zone side, and other parts are substantially the same as those of the conventional device. It is the same. That is, a cooling water passage 5 is formed in the housing 3, and an axially shallow groove 9 is formed on the inner surface of the sleeve 4.
There are several articles formed. Also, the cylinder 2 in the melting zone
The inner diameter of the sleeve 4 is the same, and a predetermined clearance is provided between the inner surface of the sleeve 4 and the screw 1.
スリーブ４はハウジング３の内径の大きな側から挿入さ
れ、ハウジング３の小径部に密嵌され、そのフランジの
部分でハウジング３とボルト７により固定される。ま
た、ハウジング３の内径が大きい部分の端面はボルト22
により減速機８に固定され、ハウジング３の小径側端面
は従来と同様に溶融ゾーンを構成するシリンダ２の端面
とボルトを介して連結される。The sleeve 4 is inserted from the side of the housing 3 having a large inner diameter, is tightly fitted to the small diameter portion of the housing 3, and is fixed to the housing 3 and the bolt 7 at the flange portion. In addition, the end surface of the housing 3 where the inner diameter is large is bolt 22
The end face of the housing 3 on the small diameter side is connected to the end face of the cylinder 2 forming the melting zone via bolts as in the conventional case.
こうして組立てられた本実施例に係る押出機には、ハウ
ジング３の減速機８側の部分にスリーブ４と同程度の長
さＬをもつ交換スペースが形成される。In the extruder according to the present embodiment assembled in this way, an exchange space having a length L similar to that of the sleeve 4 is formed in a portion of the housing 3 on the speed reducer 8 side.
以上の構成において、いまスリーブ４を交換しようとす
るときは、ボルト22を外して減速機８とハウジング３の
連結を解き、スクリュ１をシリンダから抜き取る。その
後、ボルト７を外してスリーブ４を抜き取り、新しいス
リーブと交換し、ボルト７により同スリーブをハウジン
グ３に固定する。In the above structure, when the sleeve 4 is to be replaced, the bolt 22 is removed to disconnect the reduction gear 8 from the housing 3, and the screw 1 is pulled out from the cylinder. Then, the bolt 7 is removed, the sleeve 4 is pulled out, the sleeve 4 is replaced with a new sleeve, and the sleeve 7 is fixed to the housing 3 by the bolt 7.
次にスクリュ１をシリンダ内に挿入し、ボルト22を締め
て減速機８とハウジング３を連結固定して作業は終了す
る。Next, the screw 1 is inserted into the cylinder, the bolt 22 is tightened, the speed reducer 8 and the housing 3 are connected and fixed, and the work is completed.
上記実施例では、ハウジング３のスリーブ抜取りスペー
ス部の構造を単なる円筒状として構成しているが、同ス
ペース部の構造を例えば側面に窓を形成し、或いはリブ
構造とし、スリーブを軸方向に２つ割りに構成すればス
クリュを抜くことなくスリーブの交換が可能になる。In the above-mentioned embodiment, the structure of the space for removing the sleeve of the housing 3 is formed as a simple cylinder, but the structure of the space is formed with, for example, a window on the side surface or a rib structure, and the sleeve is arranged in the axial direction. If it is divided into three parts, the sleeve can be replaced without removing the screw.
（考案の効果） 以上、詳細に説明した如く本考案によれば、溝付スリー
ブを簡単に交換出来るようになり、その結果、直接或い
は間接的に次に挙げる効果が生じる。(Effect of the Invention) As described above in detail, according to the present invention, the grooved sleeve can be easily replaced, and as a result, the following effects are obtained directly or indirectly.
（１）良品が成形出来る使用原料の種類が広がる。(1) A wide variety of raw materials can be used to mold good products.
（２）適性運転条件の範囲が広がり、汎用性が増大す
る。(2) The range of suitable operating conditions is expanded and versatility is increased.
（３）溝付スリーブの交換を行なおうとすれば、従来、
１日仕事であったものが、数時間でかつ一人で交換が出
来、作業時間の短縮と同時に大巾な省人化、省力化が達
成される。(3) If you want to replace the grooved sleeve,
Work that was done for a day can be exchanged within a few hours and by one person, and the work time can be shortened, and at the same time the labor and labor can be greatly saved.
（４）溝付スリーブは摩耗しやすく、短期間で交換する
必要があるが、この交換の場合でも大巾な時間の節約と
省力化が図れる。(4) The grooved sleeve is easily worn and needs to be replaced in a short period of time, but even in the case of this replacement, considerable time saving and labor saving can be achieved.
第１図は本考案の代表的な実施例に係る押出機原料供給
部の断面図、第２図は第１図のＡ−Ａ断面図、第３図は
従来の押出機原料供給部の断面図である。 図の主要部分の説明 １…スクリュ ２…シリンダ ３…ハウジング ４…（溝付）スリーブ ５…冷却水路 ６…原料供給口 ７…ボルト ８…減速機 ９…溝FIG. 1 is a sectional view of an extruder raw material supply section according to a typical embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view of a conventional extruder raw material supply section. It is a figure. Description of main parts of the drawing 1 ... Screw 2 ... Cylinder 3 ... Housing 4 ... (with groove) Sleeve 5 ... Cooling water channel 6 ... Raw material supply port 7 ... Bolt 8 ... Reducer 9 ... Groove
Claims (1)
の長さに構成され、内面の軸方向に複数条の溝を形成し
たスリーブを、原料供給部のハウジング内に嵌挿固定し
てなるプラスチック押出機において、前記スリーブを前
記ハウジングに対し脱着可能にすると共に、同ハウジン
グのスクリュ駆動側に前記スリーブ抜取用スペースを形
成することを特徴とするプラスチック押出機。1. A sleeve having a raw material supply port, having a length corresponding to several pitches of a screw, and having a plurality of grooves formed in the inner surface in the axial direction is fitted and fixed in the housing of the raw material supply section. In the plastic extruder as described above, the sleeve can be attached to and detached from the housing, and the sleeve extraction space is formed on the screw driving side of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989127716U JPH0730346Y2 (en) | 1989-10-31 | 1989-10-31 | Plastic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989127716U JPH0730346Y2 (en) | 1989-10-31 | 1989-10-31 | Plastic extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0366725U JPH0366725U (en) | 1991-06-28 |
| JPH0730346Y2 true JPH0730346Y2 (en) | 1995-07-12 |
Family
ID=31675463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989127716U Expired - Lifetime JPH0730346Y2 (en) | 1989-10-31 | 1989-10-31 | Plastic extruder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0730346Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4971753B2 (en) * | 2006-11-13 | 2012-07-11 | 株式会社リッチェル | Circle for pet animals, panel body that can be used for the circle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8110512U1 (en) * | 1981-04-07 | 1981-10-29 | Paul Kiefel GmbH Maschinenfabrik, 6520 Worms | INLET SOCKET FOR SCREW-IN EXTRUDER " |
| JPS619704U (en) * | 1984-06-25 | 1986-01-21 | 松下電工株式会社 | lighting equipment |
-
1989
- 1989-10-31 JP JP1989127716U patent/JPH0730346Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0366725U (en) | 1991-06-28 |
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