JP2002361710A - Head spacer and extruder using the same - Google Patents

Head spacer and extruder using the same

Info

Publication number
JP2002361710A
JP2002361710A JP2001168074A JP2001168074A JP2002361710A JP 2002361710 A JP2002361710 A JP 2002361710A JP 2001168074 A JP2001168074 A JP 2001168074A JP 2001168074 A JP2001168074 A JP 2001168074A JP 2002361710 A JP2002361710 A JP 2002361710A
Authority
JP
Japan
Prior art keywords
head
extruder
spacer
inner diameter
ring
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
Application number
JP2001168074A
Other languages
Japanese (ja)
Other versions
JP4666559B2 (en
Inventor
Mitsuo Nakamura
光男 中村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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 by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP2001168074A priority Critical patent/JP4666559B2/en
Publication of JP2002361710A publication Critical patent/JP2002361710A/en
Application granted granted Critical
Publication of JP4666559B2 publication Critical patent/JP4666559B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To use a head used heretofore as it is even when the size of an extruder is increased. SOLUTION: In a ring-shaped head spacer (1) inserted in the space between the extruder (2) and the head (3), the inner surface of the ring thereof is formed as a taper surface (1A) and the inner diameter (ϕA) of the head spacer on the side of the extruder (2) is different from the inner diameter (ϕB) thereof on the side of the head (3). One end surface of the head spacer (1), wherein the inner surface of the ring is formed as the taper surface (1A) and the inner diameter (ϕA) of one end surface of the head spacer coincides with the inner diameter of the end part of an extrusion screw cylinder (4A) and the inner diameter (ϕB) of the other end surface is different from the inner diameter (ϕA), is attached to the end part of the extrusion screw cylinder (4A).

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、ゴム等の押出機と
ヘッドとの間に挿入し、押出機のサイズ変更を可能にす
るヘッドスペーサー及びそれを有する押出機に関するも
のである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head spacer which is inserted between an extruder made of rubber or the like and a head so as to change the size of the extruder, and an extruder having the same.

【0002】[0002]

【従来の技術】従来の押出機にあっては、例えばサイズ
アップさせて押し出し能力を向上させる場合、それに合
わせてヘッドや、ダイホルダー(プレフォーマー)・ダ
イ(口金)の新設又は改造が必要であった。
2. Description of the Related Art In a conventional extruder, for example, in order to improve the extrusion ability by increasing the size, it is necessary to newly install or remodel a head, a die holder (preformer) and a die (base). Met.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、ヘッド
等を新設したり改造したりすると、それに伴う莫大なコ
スト、工数、期間等が必要となるため、経済性、生産性
等に問題があった。
However, when a head or the like is newly installed or modified, enormous costs, man-hours, periods, and the like are required, resulting in problems in economy, productivity, and the like.

【0004】そこで本発明は、押出機のサイズアップ等
をする場合であっても、これまで使用していたヘッドが
そのまま使用できるようにし、経済性、生産性等の悪化
を招くことがないようにすることを目的とするものであ
る。
Therefore, the present invention enables the head used so far to be used as it is even when the size of the extruder is increased, so that the economic efficiency and productivity are not deteriorated. It is intended to be.

【0005】[0005]

【課題を解決するための手段】本発明は以上の課題を解
決するためになされたものであって、その第1の要旨
は、押出機とヘッドとの間に挿入されるリング型のヘッ
ドスペーサーであって、リングの内面がテーパー面にな
っており、押出機側の内径とヘッド側の内径とが相違す
るヘッドスペーサーに係るものである。
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a first gist of the invention is to provide a ring type head spacer inserted between an extruder and a head. The present invention relates to a head spacer in which the inner surface of the ring is a tapered surface and the inner diameter of the extruder is different from the inner diameter of the head.

【0006】また、第2の要旨は、リング型のヘッドス
ペーサーを有する押出機であって、リングの内面がテー
パー面になっており、一端面の内径が押出スクリュー筒
の端部内径と一致し、他端面の内径がそれと相違するヘ
ッドスペーサーの前記一端面側を、押出スクリュー筒の
端部に取り付けてなる押出機に係るものである。
A second aspect is an extruder having a ring-type head spacer, wherein the inner surface of the ring is a tapered surface, and the inside diameter of one end surface matches the inside diameter of the end portion of the extrusion screw cylinder. The present invention relates to an extruder in which the one end face side of a head spacer having a different inner diameter from the other end face is attached to an end of an extrusion screw cylinder.

【0007】[0007]

【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図1は、本発明のヘッドスペーサ
ー1を示す断面図である。ヘッドスペーサー1はリング
型であって、図1に示す通り、押出機2とヘッド3との
間に挿入されるものである。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a head spacer 1 of the present invention. The head spacer 1 is a ring type and is inserted between the extruder 2 and the head 3 as shown in FIG.

【0008】ここで、ヘッドスペーサー1のリングの内
面はテーパー面1Aになっており、押出機側の内径φA
とヘッド側の内径φBとが相違している。従って、図1
のように、たとえ押出機側とヘッド側とで内径が相違し
ていても、その径差を吸収できるのである。
Here, the inner surface of the ring of the head spacer 1 has a tapered surface 1A, and the inner diameter φA of the extruder side.
And the inner diameter φB on the head side are different. Therefore, FIG.
As described above, even if the inner diameter is different between the extruder side and the head side, the difference in diameter can be absorbed.

【0009】即ち、従来は、押出機2とヘッド3とが直
接取り付けられていた。そのため、押出機2のサイズを
変更するとヘッド3との口径が合わなくなり、新たな押
出機のサイズに合わせてヘッドの新設や改造をする必要
があったのであるが、本発明のヘッドスペーサー1を挿
入すれば、これまで使用していたヘッドがそのまま使用
できることとなるのである。また、型付けに使用するダ
イホルダー(プレフォーマー)やダイ(口金)もそのま
ま使用できる。
That is, conventionally, the extruder 2 and the head 3 were directly mounted. For this reason, when the size of the extruder 2 is changed, the diameter of the head 3 does not match, and it is necessary to newly install or modify the head according to the size of the new extruder. Once inserted, the head that has been used can be used as it is. In addition, a die holder (preformer) and a die (base) used for molding can be used as they are.

【0010】この場合、径差に基づくゴム抜け性が問題
になるが、本発明のヘッドスペーサー1は、上記の通
り、リングの内面がテーパー面1Aになっている。従っ
て、ゴム抜け性を確保しながら、押出機のサイズアップ
が可能となっている。
[0010] In this case, there is a problem of rubber releasability due to the difference in diameter. However, in the head spacer 1 of the present invention, as described above, the inner surface of the ring is the tapered surface 1A. Therefore, it is possible to increase the size of the extruder while ensuring the rubber removability.

【0011】なお、本発明のヘッドスペーサー1は、ホ
ット式、コールド式を問わず、押出機のサイズ変更が可
能である。例えばホット式の場合、開口寸法φ200の
多層押出用ヘッドに、φ200からφ250へサイズア
ップ(φ200HOTをφ250HOTに)した押出機
を取り付けるには、一端面の内径がφ250で他端面の
内径がφ200のヘッドスペーサーを使用し、押出機側
をφ250、ヘッド側をφ200にして押出機とヘッド
との間に設置すればよい。また、コールド式の場合、開
口寸法φ120の平ヘッドに、φ120からφ150へ
サイズアップ(φ120PCTをφ150PCTに)し
た押出機を取り付けるには、ホット式の場合と同様、適
合するヘッドスペーサを設置すればよい。
The size of the extruder of the head spacer 1 of the present invention can be changed regardless of whether it is a hot type or a cold type. For example, in the case of a hot type, in order to attach an extruder whose size has been increased from φ200 to φ250 (φ200 HOT to φ250 HOT) on a multilayer extrusion head having an opening dimension φ200, the inner diameter of one end face is φ250 and the other end diameter is φ200. The extruder side may be set to φ250 and the head side may be set to φ200 using a head spacer and installed between the extruder and the head. In addition, in the case of the cold type, in order to attach an extruder whose size has been increased from φ120 to φ150 (φ120PCT to φ150PCT) on a flat head with an opening size of φ120, it is necessary to install a suitable head spacer as in the case of the hot type. Good.

【0012】図2は、本発明のヘッドスペーサー1を取
り付けてホット対向型とした例を示す一部断面図であ
る。即ち、ヘッドを新設したり改造したりすることな
く、これまで使用していたヘッド3をそのまま使用し、
ヘッドスペーサー1を介在させることにより、サイズア
ップした押出機2を取り付けている。
FIG. 2 is a partial sectional view showing an example in which the head spacer 1 of the present invention is attached to form a hot facing type. That is, the head 3 which has been used so far is used as it is without newly installing or remodeling the head,
An extruder 2 having an increased size is attached by interposing a head spacer 1.

【0013】図3は、本発明の押出機4を示す断面図で
ある。図3に示す通り、押出機4の押出スクリュー筒4
Aの端部には、リング型のヘッドスペーサー1が取り付
けられている。
FIG. 3 is a sectional view showing the extruder 4 of the present invention. As shown in FIG. 3, the extrusion screw cylinder 4 of the extruder 4
A ring-shaped head spacer 1 is attached to the end of A.

【0014】即ち、押出スクリュー筒4Aの端部内径と
一致する内径φAを一端面側に有するヘッドスペーサー
1が取り付けられて押出機4を構成している。そして、
ヘッドスペーサー1はリングの内面がテーパー面1Aに
なっているので、スペーサーの幅やテーパー角を変化さ
せることにより、押出スクリュー筒4Aの端部内径と無
関係に、他端面の内径φBを常に一定にすることができ
るのである。従って、一定の開口寸法を有するヘッドに
合わせて他端面の内径φBを設定しておけば、押出機4
をそのままヘッドに取り付けることができる。
That is, the extruder 4 is constructed by attaching the head spacer 1 having an inner diameter φA on one end surface which matches the inner diameter of the end of the extrusion screw cylinder 4A. And
Since the inner surface of the head spacer 1 has a tapered surface 1A, by changing the width and the taper angle of the spacer, the inner diameter φB of the other end surface is always constant regardless of the inner diameter of the end portion of the extrusion screw cylinder 4A. You can do it. Therefore, if the inside diameter φB of the other end surface is set according to the head having a fixed opening size, the extruder 4
Can be directly attached to the head.

【0015】このように、本発明のヘッドスペーサー1
及びそれを有する押出機4は、ヘッドはそのままで、押
出機を入れ替えるだけで簡単に能力の向上が図れ、口金
等の変更や治工具が不要である。なお、本発明のヘッド
スペーサー1を使用して押出機をサイズアップしたとこ
ろ、型出し押出の場合で、φ200HOTをφ250H
OTにすることにより、ゴム抜け性を確保しながら、吐
出量を30%向上させることができた。また、熱入れ押
出の場合で、φ120PCTをφ150PCTにするこ
とにより、吐出量を100%向上させることができた。
As described above, the head spacer 1 of the present invention
And the extruder 4 having the same can easily improve the capacity only by exchanging the extruder while keeping the head as it is, and does not require a change in a die or the like or a jig. The size of the extruder was increased by using the head spacer 1 of the present invention.
By using OT, it was possible to improve the ejection amount by 30% while securing the rubber release property. In the case of hot extrusion, the discharge rate could be improved by 100% by changing φ120 PCT to φ150 PCT.

【0016】[0016]

【発明の効果】本発明のヘッドスペーサー及びそれを有
する押出機によれば、リング型のヘッドスペーサーの内
面がテーパー面になっているので、押出機のサイズを変
更する場合であっても、ヘッドを新設したり改造したり
することなく、これまで使用していたヘッドがそのまま
使用できる。
According to the head spacer of the present invention and the extruder having the same, since the inner surface of the ring-type head spacer is a tapered surface, even if the size of the extruder is changed, the head can be used. The head that has been used can be used as it is, without newly installing or modifying it.

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

【図1】図1は、本発明のヘッドスペーサー1を示す断
面図である。
FIG. 1 is a sectional view showing a head spacer 1 of the present invention.

【図2】図2は、本発明のヘッドスペーサー1を取り付
けてホット対向型とした例を示す一部断面図である。
FIG. 2 is a partial cross-sectional view showing an example in which a head spacer 1 of the present invention is attached to form a hot facing type.

【図3】図3は、本発明の押出機4を示す断面図であ
る。
FIG. 3 is a sectional view showing an extruder 4 of the present invention.

【符号の説明】[Explanation of symbols]

1‥ヘッドスペーサー 1A‥テーパー面 2‥押出機 3‥ヘッド 4‥押出機 4A‥押出スクリュー筒 1 ‥ Head spacer 1A ‥ Tapered surface 2 ‥ Extruder 3 ‥ Head 4 ‥ Extruder 4A ‥ Extruded screw cylinder

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 押出機(2)とヘッド(3)との間に挿
入されるリング型のヘッドスペーサー(1)であって、
リングの内面がテーパー面(1A)になっており、押出
機側の内径(φA)とヘッド側の内径(φB)とが相違
することを特徴とするヘッドスペーサー。
1. A ring type head spacer (1) inserted between an extruder (2) and a head (3),
A head spacer, wherein the inner surface of the ring is a tapered surface (1A), and the inner diameter (φA) on the extruder side is different from the inner diameter (φB) on the head side.
【請求項2】 リング型のヘッドスペーサー(1)を有
する押出機(4)であって、リングの内面がテーパー面
(1A)になっており、一端面の内径(φA)が押出ス
クリュー筒(4A)の端部内径と一致し、他端面の内径
(φB)がそれと相違するヘッドスペーサー(1)の前
記一端面側を、押出スクリュー筒(4A)の端部に取り
付けてなること特徴とする押出機。
2. An extruder (4) having a ring-type head spacer (1), wherein an inner surface of a ring is a tapered surface (1A) and an inner diameter (φA) of one end surface is an extrusion screw cylinder (1). The one end face side of the head spacer (1), which matches the inside diameter of the end part of 4A) and has a different inside diameter (φB) of the other end face, is attached to the end of the extrusion screw cylinder (4A). Extruder.
JP2001168074A 2001-06-04 2001-06-04 Extruder and head assembly structure Expired - Fee Related JP4666559B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001168074A JP4666559B2 (en) 2001-06-04 2001-06-04 Extruder and head assembly structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001168074A JP4666559B2 (en) 2001-06-04 2001-06-04 Extruder and head assembly structure

Publications (2)

Publication Number Publication Date
JP2002361710A true JP2002361710A (en) 2002-12-18
JP4666559B2 JP4666559B2 (en) 2011-04-06

Family

ID=19010359

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001168074A Expired - Fee Related JP4666559B2 (en) 2001-06-04 2001-06-04 Extruder and head assembly structure

Country Status (1)

Country Link
JP (1) JP4666559B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006272613A (en) * 2005-03-28 2006-10-12 Mie Chuo Kaihatsu Kk Extrusion molder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5530964A (en) * 1978-08-28 1980-03-05 Matsushita Electric Works Ltd Mold for extrusiom molding
JPH04339632A (en) * 1991-05-17 1992-11-26 Hitachi Zosen Sangyo Kk Multi-spindle extruding machine
JPH08174628A (en) * 1994-12-21 1996-07-09 Sekisui Chem Co Ltd Switching mold device for extrusion molding
JPH09239804A (en) * 1996-03-04 1997-09-16 Japan Steel Works Ltd:The Production of continuous foam and die therefor
JP2000238114A (en) * 1999-02-25 2000-09-05 Sekisui Chem Co Ltd Extrusion molding device for foamable sheet, manufacture of foamable sheet, and manufacture of foam
JP2001038790A (en) * 1999-07-30 2001-02-13 Kohan Kogyo Kk T-die

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5530964A (en) * 1978-08-28 1980-03-05 Matsushita Electric Works Ltd Mold for extrusiom molding
JPH04339632A (en) * 1991-05-17 1992-11-26 Hitachi Zosen Sangyo Kk Multi-spindle extruding machine
JPH08174628A (en) * 1994-12-21 1996-07-09 Sekisui Chem Co Ltd Switching mold device for extrusion molding
JPH09239804A (en) * 1996-03-04 1997-09-16 Japan Steel Works Ltd:The Production of continuous foam and die therefor
JP2000238114A (en) * 1999-02-25 2000-09-05 Sekisui Chem Co Ltd Extrusion molding device for foamable sheet, manufacture of foamable sheet, and manufacture of foam
JP2001038790A (en) * 1999-07-30 2001-02-13 Kohan Kogyo Kk T-die

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006272613A (en) * 2005-03-28 2006-10-12 Mie Chuo Kaihatsu Kk Extrusion molder

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