JPS6186233A - Controlling method of extruder - Google Patents

Controlling method of extruder

Info

Publication number
JPS6186233A
JPS6186233A JP59209466A JP20946684A JPS6186233A JP S6186233 A JPS6186233 A JP S6186233A JP 59209466 A JP59209466 A JP 59209466A JP 20946684 A JP20946684 A JP 20946684A JP S6186233 A JPS6186233 A JP S6186233A
Authority
JP
Japan
Prior art keywords
screw
time
extruder
period
timing
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.)
Pending
Application number
JP59209466A
Other languages
Japanese (ja)
Inventor
Seizo Ichikawa
市川　清三
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 JP59209466A priority Critical patent/JPS6186233A/en
Publication of JPS6186233A publication Critical patent/JPS6186233A/en
Pending 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/35—Extrusion nozzles or dies with rollers
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92609—Dimensions
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885—Screw or gear
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92933—Conveying, transporting or storage of articles
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92952—Drive section, e.g. gearbox, motor or drive fluids
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/9298—Start-up, shut-down or parameter setting phase; Emergency shut-down; Material change; Test or laboratory equipment or studies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To prevent an end part of a molded article from getting out of a desired shape even if it is operated intermittently, by making a screw and drawing device operate through a specific step at the time of molding of a product in continuous lengths by making use of an extruder. CONSTITUTION:A screw 5 is started, to begin with, driving of a drawing device 3 is started after the screw 5 has been made to rotate for a period of first time T1 and then speeds of the screw 5 and the drawing device 3 are increased up to the respective predetermined regular number of revolutions during a period of second time T2. Then after regular operation of both of them have been performed respectively at predetermined regular number of revolutions during a period of third time T3, both are decelerated until both are reached to the respective predetermined low speed revolutions during a period of fourth time T4. Then the screw 5 is operated at the predetermined number of low speed revolutions during a period of time until the drawing device 3 is made to stop after the same has been operated at the predetermined number of low speed revolutions during a period of fifth time T5, the same is reversed prior to the lapse of a period of fifth time and the screw 5 is made to stop after the same has been reversed during a period of sixth time T6.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は押出機の制御方法、詳しくは、ゴム、プラスチ
ック等の長尺の型物部材を連続または間歇的に吐出する
押出機の制御方法に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method of controlling an extruder, and more particularly, a method of controlling an extruder that continuously or intermittently discharges a long shaped member such as rubber or plastic. Regarding.

（従来技術） 従来の押出機の制御方法としては、例えば、第４図のよ
うなものがある。第４図において、３１は押出機であり
、押出機３１は押出シリンダ３２、押出シリンダ３２の
先端部に設けられたローラダイヘラド３３、押出シリン
ダ３２の後端部にホッパ３４および押出シリンダ３２内
にスクリュー３５を有している。(Prior Art) An example of a conventional extruder control method is shown in FIG. 4. In FIG. 4, 31 is an extruder, and the extruder 31 includes an extrusion cylinder 32, a roller die head 33 provided at the tip of the extrusion cylinder 32, a hopper 34 at the rear end of the extrusion cylinder 32, and a screw inside the extrusion cylinder 32. It has 35.

スクリュー３５はスクリュー回転手段３６に連結され、
スクリュー回転手段３６は減速機３６ａ、押出機モータ
（直流モータ）３６ｂおよび減速機３６ａと押出機モー
タ３６ｂを連結するタイミングベルト３６ｃから構成さ
れている。ローラダイヘッド３３はローラダイ回転手段
３８に連結されている。ローラダイ回転手段３８はタイ
ミングチェーン３８ａ、減速機３８ｂおよびローラダイ
モータ（直流モータ）３８ｃから構成されている。３９
は圧力計であり、圧力計３９はローラダイヘッド３３の
内部の素材（例えば、ゴム）のヘッド圧力Ｐを測定する
。The screw 35 is connected to screw rotation means 36,
The screw rotating means 36 includes a speed reducer 36a, an extruder motor (DC motor) 36b, and a timing belt 36c connecting the speed reducer 36a and the extruder motor 36b. The roller die head 33 is connected to a roller die rotating means 38. The roller die rotating means 38 includes a timing chain 38a, a reduction gear 38b, and a roller die motor (DC motor) 38c. 39
is a pressure gauge, and the pressure gauge 39 measures the head pressure P of the material (for example, rubber) inside the roller die head 33.

押出機３１を用いて部材、例えば、タイヤ用のゴム部材
４０であるトレッドゴム、小物ゴム部材またはゴムシー
ト等をローラダイヘッド３３から吐出させ、引き出して
、次工程にゴム部材４０を間歇的に供給する場合につき
説明する。第６図（ａ）〜（ｄ）は従来の押出機の制御
方法と帯状ゴムシート４０の厚さの変化との関係を示す
タイミングチャートである。第６図（ａ）〜（ｄ）にお
いて、タイミング上工。でローラダイモータ３８ｃと押
出機モータ３６ｂとが同時に回転開始すると、ヘッド圧
力Ｐはタイミングｔｉ。から遅れて上昇し、帯状ゴムシ
ート４０の厚さはタイミング上工。では所定の厚さより
薄い。タイミングｔ□２でローラダイモータ３８ｃと押
出機モータ３６ｂが所定の回転数まで上昇した時、帯状
ゴムシート４０の厚さは所定の厚さまで上昇する。その
後、タイミングｔｘ３までは帯状ゴムシート４０の厚さ
はほぼ一定に保持される。Using the extruder 31, a member such as tread rubber, small rubber member, or rubber sheet, which is a rubber member 40 for a tire, is discharged from the roller die head 33 and pulled out, and the rubber member 40 is intermittently supplied to the next process. I will explain when to do so. FIGS. 6(a) to 6(d) are timing charts showing the relationship between a conventional extruder control method and changes in the thickness of the band-shaped rubber sheet 40. In FIGS. 6(a) to 6(d), the timing is incorrect. When the roller die motor 38c and the extruder motor 36b start rotating at the same time, the head pressure P reaches timing ti. The thickness of the belt-shaped rubber sheet 40 is determined by timing. is thinner than the specified thickness. When the roller die motor 38c and the extruder motor 36b increase to a predetermined rotation speed at timing t□2, the thickness of the band-shaped rubber sheet 40 increases to a predetermined thickness. Thereafter, the thickness of the belt-shaped rubber sheet 40 is maintained substantially constant until timing tx3.

次にタイミングｔ１３で、ローラダイモータ３８Ｃと押
出機モータ３６ｂが同時に所定の低速回転数に減速し始
めても、ヘッド圧力Ｐは十分高く保持されている。一方
、ローラダイヘッド３３の回転は停止しているため、吐
出したゴムは帯状ゴムシート４０の厚さを徐々に増加さ
せる。タイミング上工。Next, at timing t13, even if the roller die motor 38C and the extruder motor 36b simultaneously begin to decelerate to a predetermined low rotational speed, the head pressure P is maintained sufficiently high. On the other hand, since the rotation of the roller die head 33 is stopped, the discharged rubber gradually increases the thickness of the band-shaped rubber sheet 40. Good timing.

で、両モータ３８ｃ、３８ｂが所定の低速回転数で回転
し、さらに、タイミングｔ□、で両モータ３８ｃ、３８
ｂが停止してもヘッド圧力Ｐ（第６図（ｄ））は依然と
して高く保持されている。このためローラダイヘッド３
３の内部ゴムは吐出するが、ローラダイヘッド３３は回
転が停止しているのでローラダイヘッド部３３の端末か
ら離隔した位置（例えば、１０〜２０ｍ）の帯状ゴムシ
ート４０は第５図に示すように厚さが部分的に厚い所謂
ラバーボール４０ａが発生する。したがって、タイミン
グｔ□。〜ｔ工２間に吐出した帯状ゴムシート４０ａと
、タイミングｔｉ３以降に吐出した帯状ゴムシート４０
とは所定の厚さからはずれている。そこで、この厚さの
不均一をを除去しなければ、次の作業が進められないと
いう問題点があり、押出機は間歇的な作業工程には用い
られないという問題点がある。Then, both motors 38c and 38b rotate at a predetermined low speed, and further, at timing t□, both motors 38c and 38b rotate at a predetermined low speed.
Even if the head pressure P (FIG. 6(d)) is stopped, the head pressure P (FIG. 6(d)) is still maintained high. Therefore, the roller die head 3
3 is discharged, but since the roller die head 33 has stopped rotating, the belt-shaped rubber sheet 40 at a distance (for example, 10 to 20 m) from the end of the roller die head section 33 is discharged as shown in FIG. A so-called rubber ball 40a that is partially thick is generated. Therefore, timing t□. - The belt-shaped rubber sheet 40a discharged between t-t and 2, and the belt-shaped rubber sheet 40 discharged after timing ti3
The thickness deviates from the specified thickness. Therefore, there is a problem that the next operation cannot proceed unless this non-uniformity in thickness is removed, and an extruder cannot be used for intermittent operation processes.

このようなゴム部材４０の厚さの不均一は押出機３１を
連続的に用いる場合においても、始動、停止する場合に
は同様に発生する。したがって、押出された全ゴム部材
の長さの中、所定の厚さの部分の長さが短くなり、ゴム
部材４０の生産性が低下するという問題点があり、かつ
所定の厚さからはずれた不均一部分を再度押出機で押出
すので、省エネルギー上も問題があり、また、押出機の
稼働率も低下するという問題点もある。Even when the extruder 31 is used continuously, such non-uniformity in the thickness of the rubber member 40 similarly occurs when the extruder 31 is started and stopped. Therefore, there is a problem that the length of the predetermined thickness portion of the total length of the extruded rubber member is shortened, and the productivity of the rubber member 40 is reduced. Since the non-uniform portion is extruded again using the extruder, there is a problem in terms of energy saving, and there is also the problem that the operating rate of the extruder is reduced.

（発明の目的） そこで本発明は、押出機を用いて、長尺の型物の部材（
例えば、ゴム部材）を間歇的または連続に製造する場合
、押出機を始動、または停止しても端部の部材の寸法が
所定の寸法からはずれることがなく、押出機の間歇作業
ができて、稼動率の向上する押出機の制御方法を提供す
ることを目的とする。(Object of the invention) Therefore, the present invention uses an extruder to produce a long molded member (
For example, when producing rubber parts intermittently or continuously, the dimensions of the end parts do not deviate from the predetermined dimensions even if the extruder is started or stopped, and the extruder can be operated intermittently. The object of the present invention is to provide a method of controlling an extruder that improves the operating rate.

（発明の構成） 本発明に係る押出機の制御方法は、押出シリンダと、こ
の押出シリンダの先端部に設けられた引出手段と、この
引出手段を回転させる引出駆動手段と、前記押出シリン
ダ内に設けられたスクリューと、このスクリューを回転
させるスクリュー回転手段と、前記引出駆動手段とスク
リュー回転牟段を制御する制御手段と、を備えた押出機
の制御方法において、前記スクリューを始動し第１時間
の間回転させた後、引出手段を始動駆動させ、次いでス
クリューと引出手段をそれぞれの所定の定常回転数まで
第２時間の間に増速し、次いでスクリューと引出手段を
第３時間の間それぞれの所定の定常回転数で定常運転し
、次いでスクリューと引出手段をそれぞれの所定の低速
回転数になるまで第４時間の間で減速し、次いで引出手
段を第５時間の間所定の低速回転数で運転した後停止さ
せる間に、スクリューを所定の低速回転数で運転し前記
第５時間を経過する前に逆回転し、第６時間の間スクリ
ューを逆回転した後停止させるり１を特徴としている。(Structure of the Invention) A method for controlling an extruder according to the present invention includes an extrusion cylinder, a pull-out means provided at the tip of the extrusion cylinder, a pull-out drive means for rotating the pull-out means, and a pull-out means provided in the extrusion cylinder. A method for controlling an extruder comprising a screw provided, a screw rotation means for rotating the screw, and a control means for controlling the drawer drive means and the screw rotation stage, wherein the screw is started for a first time. After rotating for a period of time, the withdrawal means is started and driven, and then the screw and the withdrawal means are increased in speed to their respective predetermined steady-state rotational speeds during a second period of time, and then the screw and withdrawal means are respectively rotated for a third period of time. is operated steadily at a predetermined steady rotation speed, then the screw and the drawing means are decelerated during a fourth period of time until they reach their respective predetermined low speed rotation speeds, and then the drawing means is operated at a predetermined low speed rotation speed during a fifth period of time. The screw is operated at a predetermined low rotational speed and is rotated in reverse before the fifth time elapses, and the screw is rotated in reverse for a sixth time and then stopped. There is.

（実施例） 以下、本発明を図面に基づいて説明する。第１図は本発
明に係る押出機の制御方法を実施する装置の一実施例を
示す図である。(Example) Hereinafter, the present invention will be explained based on the drawings. FIG. 1 is a diagram showing an embodiment of an apparatus for implementing the extruder control method according to the present invention.

まず、構成を説明する。第１図において、１は押出機で
あり、押出機１は押出シリンダ２、押出シリンダ２の先
端部に設けられた例えばローラダイヘッドまたは引出コ
ンベヤのような引出手段３（以下単にローラダイヘッド
という）、押出シリンダ２の後端部にホッパ４および押
出シリンダ２内に設けられたスクリュー５を有している
。スクリュー５はスクリュー５を回転させるスクリュー
回転手段６に連結されている。スクリュー回転手段６は
減速機６ａ、押出機モータ６ｂおよび減速機６ａと押出
機モータ　（直流モータ）６ｂを連結するタイミングベ
ルト６Ｃから構成されている。First, the configuration will be explained. In FIG. 1, 1 is an extruder, and the extruder 1 includes an extrusion cylinder 2, a drawing means 3, such as a roller die head or a drawing conveyor, provided at the tip of the extrusion cylinder 2 (hereinafter simply referred to as a roller die head). The extrusion cylinder 2 has a hopper 4 at its rear end and a screw 5 provided inside the extrusion cylinder 2. The screw 5 is connected to screw rotation means 6 for rotating the screw 5. The screw rotating means 6 is composed of a speed reducer 6a, an extruder motor 6b, and a timing belt 6C connecting the speed reducer 6a and the extruder motor (DC motor) 6b.

ローラダイヘッド３は内部のヘッド圧力Ｐを測定する圧
力計８を有し、ローラダイ回転手段のような引出駆動手
段７（以下単にローラダイ回転手段という）により回転
される。ローラダイ回転手段７はローラダイヘッド３を
回転させるタイミングベルト７ａ、タイミングベルト７
ａに連結された減速機７ｂおよび減速機７ｂとウオーム
、ウオーム歯車結合したローラダイモータ（直流モータ
）７ｃから構成されている。９は制御手段であり、制御
手段９はローラダイ回転手段７とスクリュー回転手段６
を介して押出機１の作動を制御する。The roller die head 3 has a pressure gauge 8 for measuring the internal head pressure P, and is rotated by a drawer drive means 7 (hereinafter simply referred to as roller die rotation means) such as a roller die rotation means. The roller die rotating means 7 includes a timing belt 7a and a timing belt 7 for rotating the roller die head 3.
The motor is comprised of a speed reducer 7b connected to a motor, and a roller die motor (DC motor) 7c connected to the speed reducer 7b, a worm, and a worm gear. 9 is a control means, and the control means 9 is a roller die rotating means 7 and a screw rotating means 6.
The operation of the extruder 1 is controlled via.

第２図は押出機の作動制御の関係を示すブロック線図で
ある。第２図において、押出機モータ６ｂは制御手段９
内に設けられた押出機モータ６ｂの第１制御回路９ａに
より始動、停止、回転数および回転方向が制御される。FIG. 2 is a block diagram showing the relationship of operation control of the extruder. In FIG. 2, the extruder motor 6b is controlled by the control means 9.
Starting, stopping, rotation speed, and rotation direction are controlled by a first control circuit 9a of an extruder motor 6b provided inside the extruder motor 6b.

第１制御回路９ａはタイマーを内蔵しており、このタイ
マーにより計測される時間（ｔ工、ｔ２、ｔ３、ｔ４．
１．．１．。The first control circuit 9a has a built-in timer, and the time measured by this timer (t, t2, t3, t4...
1. ．． 1. .

ｔ７）によって押出機モータ６ｂを制御する。この制御
方法については、後に、第３図に示すタイミングチャー
トを用いて詳述する。一方、第２図において、ローラダ
イモータ７Ｃは制御手段９内に設けられたローラダイモ
ータ７Ｃの第２制御回路９ｂにより始動、停止および回
転数が制御される。第２制御回路９ｂはタイマーを内蔵
しておりこのタイマーにより計測される時間（ｔｉ、ｔ
２、ｔ３．１４．１．、ｔ６．１７）によってローラダ
イモータ７ｃを制御する。この場合、第１制御回路９ａ
と第２制御回路９ｂとはその制御について時間計測を同
期して行う。t7) controls the extruder motor 6b. This control method will be explained in detail later using a timing chart shown in FIG. On the other hand, in FIG. 2, the starting, stopping, and rotational speed of the roller die motor 7C are controlled by a second control circuit 9b of the roller die motor 7C provided in the control means 9. The second control circuit 9b has a built-in timer, and the time measured by this timer (ti, t
2, t3.14.1. , t6.17) to control the roller die motor 7c. In this case, the first control circuit 9a
and the second control circuit 9b perform time measurement for their control in synchronization.

以下、本発明の押出機の制御方法を用いて押出機１を制
御する方法につき説明する。Hereinafter, a method for controlling the extruder 1 using the extruder control method of the present invention will be explained.

第３図は押出機１の作動を示すタイミングチャートであ
る。第３図において、第３図（ａ）はローラダイモータ
７ｃの回転数（縦軸）の作動を示し、横軸は時間ｔ（第
３図（ｂ）〜第３図（ｄ）とも同じである）を示す。第
３図（ｂ）は押出機モータ６ｂの回転数（縦軸）の作動
を示す。FIG. 3 is a timing chart showing the operation of the extruder 1. In Fig. 3, Fig. 3(a) shows the operation of the rotation speed (vertical axis) of the roller die motor 7c, and the horizontal axis indicates the time t (same as Fig. 3(b) to Fig. 3(d)). ). FIG. 3(b) shows the operation of the rotation speed (vertical axis) of the extruder motor 6b.

タイミングｔ。で押出機モータ６ｂを始動してスクリュ
ー５が始動回転され、第１時間Ｔ１の間スクリュー５を
回転させる。その後、タイミングｔ１でローラダイモー
タ７ｃを始動させて、ローラダイヘッド３のを始動回転
させる。次いで、スクリュー５とローラダイヘッド３と
の回転数は第２時間Ｔ２の間に増速しで、タイミングｔ
２でそれぞれの所定の定常回転数に達する。次いで、タ
イミングｔ３までの第３時間Ｔ３の間それぞれの所定の
定常回転数で定常運転をする。次いで、タイミングし３
で押出機モータ６ｂとローラダイモータ７ｃの減速に伴
いスクリュー５とローラダイヘッド３は同時に減速し始
め、第４時間Ｔ４の間にそれぞれの所定の低速回転数に
なる。次いで、ローラダイヘッド３はタイミングし４か
ら第５時間Ｔ５の間所定の低速回転数で運転した後タイ
ミングｔ６で停止するが、この間に、スクリュー５はタ
イミングｔ４から所定の低速回転数で運転し、第１時間
Ｔ、経過する前にタイミングｔ、で逆回転する。そして
、第６時間Ｔ６の間スクリュー５は所定の逆回転数で運
転した後停止する。timing t. The extruder motor 6b is started and the screw 5 is started to rotate, and the screw 5 is rotated for a first time T1. Thereafter, at timing t1, the roller die motor 7c is started to start and rotate the roller die head 3. Next, the rotation speed of the screw 5 and the roller die head 3 is increased during the second time T2, and the rotation speed of the screw 5 and the roller die head 3 is increased during the second time T2, and the rotation speed of the screw 5 and the roller die head 3 is increased during the second time T2.
2, the respective predetermined steady rotational speeds are reached. Next, steady operation is performed at each predetermined steady rotation speed for a third time T3 up to timing t3. Next, timing 3
With the deceleration of the extruder motor 6b and roller die motor 7c, the screw 5 and roller die head 3 simultaneously begin to decelerate, and reach their respective predetermined low rotational speeds during the fourth time T4. Next, the roller die head 3 operates at a predetermined low rotation speed from timing 4 to a fifth time T5, and then stops at timing t6. During this period, the screw 5 operates at a predetermined low rotation speed from timing t4. Before the first time T has elapsed, the rotation is reversed at timing t. Then, during the sixth time T6, the screw 5 operates at a predetermined reverse rotation speed and then stops.

（作用） 次に、第３図に示すタイミングチャートを参照して作用
を説明する。第３図（Ｃ）は圧力計８で測定されたロー
ラダイヘッド３内のヘッド圧力Ｐ（例えば、５０〜２５
０　ｋｇ　／　ｃｉ　）であり、第３図（ｄ）はローラ
ダイヘッド３から吐出した直後（例えばローラダイヘッ
ド３から約１０〜２０ｎｗｎＭ隔した位置）の部材の厚
さＤである。(Operation) Next, the operation will be explained with reference to the timing chart shown in FIG. FIG. 3(C) shows the head pressure P in the roller die head 3 (for example, 50 to 25
0 kg/ci), and FIG. 3(d) shows the thickness D of the member immediately after being discharged from the roller die head 3 (for example, at a position approximately 10 to 20 nwnM apart from the roller die head 3).

いま、タイミングｔ。で押出機モータ６ｂが始動すると
、（第３図（ｂ））タイミングベルト６Ｃおよび減速機
６ａを介してスクリュー５が回転開始する。スクリュー
５の回転に伴い、ホッパ４から素材に（例えば、ゴムス
トリップ）が供給され、ローラダイヘッド３の内部のヘ
ッド圧力Ｐ（第３図（ｂ））が上昇する。タイミングｔ
０から第１時間Ｔ１後のタイミングｔ１でローラダイモ
ータ７ｃが始動すると（第３図（ａ））、減速機７ｂお
よびタイミングベルト７ａを介してローラダイヘッド３
が回転開始し、ローラダイヘッド３の回転によりゴム部
材１３が押出シリンダ２から引出され、ゴム部材１３　
（例えば、彫物の帯状ゴムシート）が所定の厚さＤ（第
３図（ｄ））の先端を有して吐出される。ここに、押出
機モータ６ｂが始動するタイミングｔ０が制御手段９に
内蔵するタイマーによりローラダイヘッド３の始動する
タイミングｔ工から第１時間Ｔ１の先行時間が与えられ
ているこのためヘッド圧力Ｐは十分に上昇している。し
たがって、第６図（ｄ）に示すように、運転開始時にロ
ーラダイヘッド３の回転により引出され吐出したゴムシ
ートの厚さＤは従来のように所定の厚さより薄いという
ことがない。そこで、ゴム部材１３は次工程にそのまま
移送でき部材の無駄がなく作業時間の効率も大巾に改善
される。Now, timing t. When the extruder motor 6b is started (FIG. 3(b)), the screw 5 starts rotating via the timing belt 6C and the speed reducer 6a. As the screw 5 rotates, the material (for example, a rubber strip) is supplied from the hopper 4, and the head pressure P inside the roller die head 3 (FIG. 3(b)) increases. timing t
When the roller die motor 7c starts at timing t1 after the first time T1 from zero (FIG. 3(a)), the roller die head 3
starts rotating, and the rubber member 13 is pulled out from the extrusion cylinder 2 by the rotation of the roller die head 3.
(For example, a belt-shaped rubber sheet for carvings) is discharged with a tip having a predetermined thickness D (FIG. 3(d)). Here, the timing t0 at which the extruder motor 6b starts is given a lead time of a first time T1 from the timing t at which the roller die head 3 starts by the timer built in the control means 9. Therefore, the head pressure P is sufficient. is rising. Therefore, as shown in FIG. 6(d), the thickness D of the rubber sheet drawn out and discharged by the rotation of the roller die head 3 at the start of operation will not be thinner than a predetermined thickness as in the conventional case. Therefore, the rubber member 13 can be transferred to the next process as it is, there is no wastage of the member, and the efficiency of working time is greatly improved.

また、タイミングｔ２までの第２時間Ｔ２の間に、スク
リュー５とローラダイヘッド３の回１転数は増加してそ
れぞれの所定の定常回転数となり、その後、第３時間Ｔ
３の間タイミングｔ３までそれぞれの所定の定常回転数
で定常運転をする。定常運転において部材１３の厚さＤ
はほぼ一定で引出されるが、素材の変質または電圧の変
化等の外乱があったときも１部材１３の厚さＤを一定に
するためには圧力計８によりヘッド圧力Ｐを検出して、
予め設定しである設定圧力との圧力差を求め、この圧力
差がＯになるように押出機モータ６ｂの回転数を制御し
てもよい。Further, during the second time T2 up to the timing t2, the number of revolutions of the screw 5 and the roller die head 3 increase to their respective predetermined steady number of revolutions, and then at the third time T2.
3, steady operation is performed at each predetermined steady rotation speed until timing t3. Thickness D of member 13 in steady operation
is drawn out almost constant, but in order to keep the thickness D of one member 13 constant even when there is disturbance such as deterioration of the material or change in voltage, the head pressure P is detected by the pressure gauge 8.
The pressure difference from a preset pressure may be determined, and the rotation speed of the extruder motor 6b may be controlled so that this pressure difference becomes O.

タイミングし、でスクリュー５とローラダイヘッド３は
同時に減速し始め、第４時間Ｔ４後でそれぞれの所定の
低速回転数にるる。ローラダイヘッド３はタイミングｔ
４から第５時間Ｔ、後のタイミングｔ６まで所定の低速
回転数で運転して停止するが、この間に、スクリュー５
はタイミングし４から所定の低速回転数で運転され、第
５時間Ｔ、が経過する前にタイミングｔ５で制御手段９
が作動しスクリュー５の回転方向は逆回転となり、所定
の逆回転数で第６時間Ｔ、の間の後タイミングし７で逆
回転を停止する。ここに、ヘッド圧力Ｐはタイミングｔ
３からタイミングｔ４までは僅かに上昇するが部材１３
の厚さＤの影響は小さい。タイミングｔ、から部材１３
の厚さＤ（第３図（ｄ））は増加し始めるがタイミング
ｔ、でスクリュー５が逆回転を始めるため、押出シリン
ダ２の内部の素材は後方に引きもどされる。したがって
、ヘッド圧力Ｐは急速に低下して、部材１３の厚さＤの
増大を防ぎ、第３図（ｄ）に示すように、ローラダイヘ
ッド３の運転が停止するタイミングｔ６まで部材１３の
厚さＤは所定の厚さを保持したまま引出される。タイミ
ングｔ７でヘッド圧力ＰはＯ（ゼロ）圧力となりスクリ
ュー５の逆回転も停止する。このように、押出機１の運
転が停止したとき、部材１３の厚さＤは所定の厚さを保
持しており、従来のように、部材１３の厚さＤが増大し
た所謂ラバーボールの発生がない。。したがって、再度
、押出機の始動をするとき、前述のように、ローラダイ
モータ７ｃが始動するタイミング上工より押出機モータ
６ｂの始動するタイミングｔ０が第１時間Ｔ工の先行時
間をもっているので、部材１３の厚さＤは押出機の運転
を停止する前も再開した後も同じ部材１３の厚さＤを保
持する。そこで、押出機１の作業はアキュームレーター
等の調整機なしで次工程の進行に対応した間歇的な作業
が出来る。At the timing, the screw 5 and the roller die head 3 begin to decelerate at the same time, and reach their respective predetermined low speed rotation speeds after the fourth time T4. Roller die head 3 is at timing t
The screw 5 is operated at a predetermined low speed rotation speed from 4 to the 5th time T, and then stopped at a later timing t6.
is operated at a predetermined low rotational speed from timing 4, and before the fifth time T has elapsed, the control means 9 is operated at timing t5.
is activated, the direction of rotation of the screw 5 becomes reverse rotation, and the reverse rotation is stopped at a predetermined reverse rotation speed after the 6th time T. Here, head pressure P is at timing t
Although it rises slightly from 3 to timing t4, member 13
The influence of the thickness D is small. From timing t, member 13
The thickness D (FIG. 3(d)) begins to increase, but at timing t, the screw 5 begins to rotate in reverse, so the material inside the extrusion cylinder 2 is pulled back. Therefore, the head pressure P rapidly decreases to prevent the thickness D of the member 13 from increasing, and as shown in FIG. D is drawn out while maintaining a predetermined thickness. At timing t7, the head pressure P becomes O (zero) pressure, and the reverse rotation of the screw 5 also stops. In this way, when the operation of the extruder 1 is stopped, the thickness D of the member 13 maintains a predetermined thickness, and as in the conventional case, the occurrence of so-called rubber balls in which the thickness D of the member 13 increases There is no. . Therefore, when starting the extruder again, as mentioned above, the timing t0 when the extruder motor 6b starts has a lead time of the first time T from the timing when the roller die motor 7c starts. The thickness D of the member 13 remains the same both before and after restarting the extruder operation. Therefore, the extruder 1 can be operated intermittently in response to the progress of the next process without the need for a regulator such as an accumulator.

なお、前述の実施例においては、押出機１は間歇的に運
転される場合について説明したが、本発明においては、
この実施例に限らず、押出機１が連続に運転される場合
であってもよい。この場合においても、始動、停止する
ときの部材１３の良品の長さが全部材の長さより大幅に
向上し、生産性の向上と省エネルギーの向上が計れる。In addition, in the above-mentioned example, the case where the extruder 1 was operated intermittently was explained, but in the present invention,
The present invention is not limited to this embodiment, and the extruder 1 may be operated continuously. In this case as well, the length of the non-defective member 13 when starting and stopping is significantly longer than the length of all members, resulting in improved productivity and energy saving.

（発明の効果） 以上説明したように、本発明によれば、押出機を用いて
長尺の型物部材を間歇的、または連続に製造する場合、
押出機を始動または停止しても押出機から吐出される部
材の寸法（例えば厚さまたは幅）がほぼ一定で所定の範
囲内にあり、間歇的な生産作業ができる。したがって、
部材の練り直しが不要で生産性がよく、押出機の稼動率
もよくなる。(Effects of the Invention) As explained above, according to the present invention, when a long molded member is manufactured intermittently or continuously using an extruder,
Even when the extruder is started or stopped, the dimensions (for example, thickness or width) of the member discharged from the extruder remain approximately constant and within a predetermined range, allowing for intermittent production work. therefore,
There is no need to re-knead parts, which improves productivity and improves the operating rate of the extruder.

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

第１〜３図は本発明に係る押出機の制御方法を押出機に
用いた一実施例を示す図であり、第１図はその押出機の
正面図、第２図はその押出機の作動制御の関係を示すブ
ロック線図、第３図（ａ）乃至（ｄ）はその押出機の作
動制御のタイミングチャートである。第４〜６図は従来
の押出機の制御方法を用いた押出機の例を示す図であり
、第４図はその押出機の正面図、第５図は第４図のＡ部
のゴム部材の拡大断面図、第６図（ａ）乃至（ｄ）はそ
の押出機の作動のタイミングチャートである。 ２・・・・・・押出シリンダ、 ３・・・・・・引出手段（ローラダイヘット）、５・・
・・・・スクリュー、 ６・・・・・・スクリュー回転手段、 ７・・・・・・引出駆動手段（ローラダイ回転手段）９
・・・・・・制御手段、 Ｔ□・・・・・・第１時間、 Ｔ２・・・・・・第２時間、 Ｔ、・・・・・・第３時間。 Ｔ４・・・・・・第４時間、 Ｔ５・・・・・第５時間、 Ｔ６・・・・・・第６時間。Figures 1 to 3 are diagrams showing an embodiment in which the extruder control method according to the present invention is applied to an extruder. Figure 1 is a front view of the extruder, and Figure 2 is an operation of the extruder. The block diagram showing the control relationship and FIGS. 3(a) to 3(d) are timing charts of the operation control of the extruder. 4 to 6 are diagrams showing an example of an extruder using a conventional extruder control method. FIG. 4 is a front view of the extruder, and FIG. 5 is a rubber member in section A of FIG. 4. The enlarged sectional views of FIGS. 6(a) to 6(d) are timing charts of the operation of the extruder. 2... Extrusion cylinder, 3... Pulling means (roller die head), 5...
... Screw, 6 ... Screw rotation means, 7 ... Drawer drive means (roller die rotation means) 9
...control means, T□...first time, T2...second time, T, ...third time. T4...4th hour, T5...5th hour, T6...6th hour.

Claims (1)

【特許請求の範囲】[Claims] 押出シリンダと、この押出シリンダの先端部に設けられ
た引出手段と、この引出手段を回転させる引出駆動手段
と、前記押出シリンダ内に設けられたスクリューと、こ
のスクリューを回転させるスクリュー回転手段と、前記
引出駆動手段とスクリュー回転手段を制御する制御手段
と、を備えた押出機の制御方法において、前記スクリュ
ーを始動し第１時間の間回転させた後、引出手段を始動
駆動させ、次いでスクリューと引出手段をそれぞれの所
定の定常回転数まで第２時間の間に増速し、次いでスク
リューと引出手段を第３時間の間それぞれの所定の定常
回転数で定常運転し、次いでスクリューと引出手段をそ
れぞれの所定の低速回転数になるまで第４時間の間で減
速し、次いで引出手段を第５時間の間所定の低速回転数
で運転した後停止させる間に、スクリューを所定の低速
回転数で運転し前記第５時間経過する前に逆回転し、第
６時間の間スクリューを逆回転した後停止させることを
特徴とする押出機の制御方法。an extrusion cylinder, a pull-out means provided at the tip of the extrusion cylinder, a pull-out drive means for rotating the pull-out means, a screw provided within the extrusion cylinder, and a screw rotation means for rotating the screw; In the method for controlling an extruder, the extruder includes the drawer drive means and a control means for controlling the screw rotation means, wherein the screw is started and rotated for a first time, the drawer means is started and driven, and then the screw rotation means is started and rotated for a first time. increasing the speed of the withdrawal means to their respective predetermined steady-state rotational speeds during a second period of time, then operating the screw and withdrawal means steadily at their respective predetermined steady-state rotational speeds for a third period of time; the screws are decelerated during a fourth period of time until the respective predetermined low speeds of rotation are reached, and then the screw is operated at a predetermined low speed of rotation while the drawing means is operated at the predetermined low speed of rotation for a fifth period and then stopped. A method for controlling an extruder, comprising rotating the extruder in reverse before the fifth time elapses, and stopping the screw after rotating the screw in the reverse direction for a sixth time.
JP59209466A 1984-10-05 1984-10-05 Controlling method of extruder Pending JPS6186233A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59209466A JPS6186233A (en) 1984-10-05 1984-10-05 Controlling method of extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59209466A JPS6186233A (en) 1984-10-05 1984-10-05 Controlling method of extruder

Publications (1)

Publication Number Publication Date
JPS6186233A true JPS6186233A (en) 1986-05-01

Family

ID=16573329

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59209466A Pending JPS6186233A (en) 1984-10-05 1984-10-05 Controlling method of extruder

Country Status (1)

Country Link
JP (1) JPS6186233A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02150340A (en) * 1988-11-30 1990-06-08 Sumitomo Rubber Ind Ltd Apparatus for rubber coating and liner connecting
JP2007516098A (en) * 2003-06-30 2007-06-21 ピレリ・タイヤ・ソチエタ・ペル・アツィオーニ Method for producing an elastomer component of a wheel tire
CN109112448A (en) * 2018-07-27 2019-01-01 合肥神诺机械有限公司 A kind of deflector roll heat treatment process

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02150340A (en) * 1988-11-30 1990-06-08 Sumitomo Rubber Ind Ltd Apparatus for rubber coating and liner connecting
JPH0541427B2 (en) * 1988-11-30 1993-06-23 Sumitomo Rubber Ind
JP2007516098A (en) * 2003-06-30 2007-06-21 ピレリ・タイヤ・ソチエタ・ペル・アツィオーニ Method for producing an elastomer component of a wheel tire
JP4637743B2 (en) * 2003-06-30 2011-02-23 ピレリ・タイヤ・ソチエタ・ペル・アツィオーニ Method for producing an elastomer component of a wheel tire
CN109112448A (en) * 2018-07-27 2019-01-01 合肥神诺机械有限公司 A kind of deflector roll heat treatment process
CN109112448B (en) * 2018-07-27 2020-07-24 苏州力华米泰克斯胶辊制造有限公司 Guide roller heat treatment process

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