JPS59174906A - Load adjusting device - Google Patents

Load adjusting device

Info

Publication number
JPS59174906A
JPS59174906A JP58050885A JP5088583A JPS59174906A JP S59174906 A JPS59174906 A JP S59174906A JP 58050885 A JP58050885 A JP 58050885A JP 5088583 A JP5088583 A JP 5088583A JP S59174906 A JPS59174906 A JP S59174906A
Authority
JP
Japan
Prior art keywords
load
controlled variable
stage
exchanger
speed
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
JP58050885A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Kobayashi
義幸 小林
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP58050885A priority Critical patent/JPS59174906A/en
Publication of JPS59174906A publication Critical patent/JPS59174906A/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
    • B29C48/92—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feedback Control In General (AREA)

Abstract

PURPOSE:To adjust the controlled variable of a control device of previous stage in accordance with the deviation between the controlled variable of a load controlling device of next stage and a set controlled variable so as to control a load stably, by introducing the deviation to a device which is used for an extruder, etc., for controlling load constantly. CONSTITUTION:Loading device of previous stage 5 and next stage 7 are installed to a load controlling device used for an extruder, etc., and thyristor devices 4 and 6 and speed setters 1 and 2 are connected to each device 5 and 7, respectively. Moreover, an ammeter 3 and current exchanger 9 are connected to the device 7. The quantity of an electric current flowing to the device 7 is detected by the ammeter and the controlled variable of the device 7 is converted into a voltage signal by the exchanger in accordance with the quantity of current. The controlled variable converted into the voltage signal by the exchanger 9 is compared with a value previously set at a load setter 8 at an operational amplifier 10 and an operational result is added to the thyristor device 4 and the speed of the device of previous stage 5 is controlled. In this way, the stability of the load is improved and highly accurate control is made possible.

Description

【発明の詳細な説明】 この発明は押出機装置等において負荷一定制側Ｉをする
制御装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for controlling constant load control in an extruder device or the like.

従来この種の装置として第１図に示すものがあった。図
において、（１）は前段用速度設定器であり、（２）は
後段用速度設定器である。（３）は後段の負荷に流れる
電流を指示する電流計である。（４）は前段用サイリス
ク装置であり、（５）は前段用サイリスタ装置（４）に
より駆動される電動機等の前段負荷装置である。（６）
は後段用サイリスク装置であり、（７）は後段用サイリ
スク装置（６）により駆動される電動機等の後段負荷装
置である。A conventional device of this type is shown in FIG. In the figure, (1) is a speed setter for the front stage, and (2) is a speed setter for the rear stage. (3) is an ammeter that indicates the current flowing to the subsequent load. (4) is a pre-stage thyristor device, and (5) is a pre-stage load device such as an electric motor driven by the pre-stage thyristor device (4). (6)
(7) is a rear-stage load device such as an electric motor driven by the rear-stage sirask device (6).

次に動作について説明する。前段負荷装置（５）により
後段負荷装置（７）に負荷が連続に移行する場合におい
て、後段負荷装置（７）の負荷を一定に保つために電流
計（３）を操作者が確認しながら前段速度膜さ荏後段負
荷装置ｉｔ　（７）の負荷を一定に保つように動作せし
める。Next, the operation will be explained. When the load is continuously transferred from the front load device (5) to the rear load device (7), the operator checks the ammeter (3) while transferring the load to the rear load device (7) in order to keep the load on the rear load device (7) constant. The speed membrane rear stage load device (7) is operated so as to keep the load constant.

従来の装置は以上のように構成されているので操作者が
電流計（３）を確認しながら判断しなければならないた
め連続して後段負荷装置（７）の負荷を一定に保つこと
は難かしいという欠点があった。　・この発明は上記の
ような従来のものの欠点を除去するためになされたもの
で後段負荷装置の制御量例えば電流を検出し演算装置に
より後段負荷装置の設定制御量との偏差を導出し、該偏
差に応じて前段負荷装置の制御量を制御することにより
後段負荷装置を連続して一定に制御することを目的とし
ている。Since the conventional device is configured as described above, the operator has to make decisions while checking the ammeter (3), making it difficult to continuously maintain a constant load on the subsequent load device (7). There was a drawback.・This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and detects the control amount of the rear load device, for example, the current, and uses a calculation device to derive the deviation from the set control amount of the rear load device. The objective is to continuously and constantly control the rear stage load device by controlling the control amount of the front stage load device according to the deviation.

以１下、この発明の一実施例を図について説明する。第
２図において、（１）は前段速度設定器、（２）は後段
速度設定器である。（４）は前段サイリスク装置であり
、（５）は前段サイリスク装置（４）により駆動される
前段負荷装置であ茗。（６）は後段サイリスク装置であ
り、（７）は後段サイリスク装置（６）により駆動され
る後段負荷装置である。（３）は後段負荷装置（７）に
流れる電流を指示する電流計であり、（９）は電流を電
圧に９換する電流変換器である。（８）は負荷設定器で
あり、（１０）は負荷設定器（８）と電流変換器（９〕
の信号を演算する演算項中器（１０）である。An embodiment of the present invention will be described below with reference to the drawings. In FIG. 2, (1) is a front stage speed setter, and (2) is a rear stage speed setter. (4) is a pre-stage silicate device, and (5) is a pre-stage load device driven by the pre-stage silicate device (4). (6) is a rear stage thyrisk device, and (7) is a rear stage load device driven by the rear stage thyrisk device (6). (3) is an ammeter that indicates the current flowing to the subsequent load device (7), and (9) is a current converter that converts the current into voltage. (8) is a load setting device, and (10) is a load setting device (8) and a current converter (9).
This is an operand intermediate unit (10) that calculates the signal.

次にこの発明の動作について説明する。前段負荷装置（
５）より後段負荷装置（７）に負荷が連続して移行する
場合において、後段負荷装置（７）に流れる電流、すな
わち制御量を検出し電流変換器（９）により電圧信号に
変換する。この電圧信号ｎ　Ａ　Ｉ＋とあらかじめ負荷
設定器（８）により設定された電圧信号“Ｂ”を演算項
中器（１０）に入力し、ｆ（Ｂ−Ａ）の演算を行ない、
演算結果を前段サイリスク装置（４）に入力することに
より、前段負荷装置（５）の速度を変化させる。例えば
、演算項中器（１０）の出力が＋ｊｘであれば前段負荷
装置（５）の速度を上昇し後段に多くの負荷を与え、ま
た演算項中器（ｌＯ）の出力が−ΔＸであれば前段負荷
装置（５）の速度を下降し後段に与える負荷を少なくす
る。・ 尚、演算項中器（１０）の出力がＯの時は負荷設定器（
８）通りの負荷が後段負荷装置（７）に与えられている
ため前後負荷装置（５）の速度は変化しない。Next, the operation of this invention will be explained. Front stage load device (
5) When the load is continuously transferred to the subsequent load device (7), the current flowing to the subsequent load device (7), that is, the control amount is detected and converted into a voltage signal by the current converter (9). This voltage signal nA I+ and the voltage signal "B" set in advance by the load setting device (8) are input to the calculation term intermediate device (10), and the calculation of f(B-A) is performed.
The speed of the front load device (5) is changed by inputting the calculation result to the front load device (4). For example, if the output of the operand intermediate unit (10) is +jx, the speed of the front stage load device (5) will be increased and a large load will be applied to the subsequent stage, and if the output of the operational term intermediate unit (lO) is -ΔX. For example, the speed of the front stage load device (5) is lowered to reduce the load applied to the rear stage.・In addition, when the output of the operand intermediate unit (10) is O, the load setter (
8) Since the same load is applied to the rear load device (7), the speed of the front and rear load devices (5) does not change.

なお、上記実施例では、演算項中器（１０）を設けたも
のを示したが比較、演算機能を有するものであれば同様
の効果を奏する。In the above embodiment, an operation term intermediater (10) is provided, but the same effect can be achieved as long as it has comparison and arithmetic functions.

以上述べたように、第１の負荷装置（前段負荷装置）の
制御量を調整することにより第２の負荷装置（後段負荷
装置）の制御量を一定にするものにおいて、第２の負荷
装置の制御量と設定制御量の偏差を導出し、偏差値に応
じて第１の負荷装置の１トリ御部を調整するものとした
ので、負荷の安定性が向上し、精度の高いものが得られ
る効果がある。As described above, in a system in which the control amount of the second load device (post-load device) is kept constant by adjusting the control amount of the first load device (pre-load device), the control amount of the second load device (pre-load device) is adjusted. Since the deviation between the controlled amount and the set controlled amount is derived and the 1-to-1 control section of the first load device is adjusted according to the deviation value, the stability of the load is improved and high accuracy can be obtained. effective.

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

第１図は従来の負荷調整装置を示す構成図、第２図はこ
の発明の一実施例を示す構成図である。 図において、（１）、（２）は速度設定器、（４）、（
６）はサイリ゛スタ装置、（５）、（′Ｉ）は負荷装置
、（８）は負荷設定器、（９）　／／′ｉ電流変換器、
（１０）は電流変換器である。 なお、各図中、同一符号は同一あるいは相当部分を示す
ものとする。 代　理　人　　葛　　野　　　信　　−第１　Ｉ’ｌｌ 第２図FIG. 1 is a block diagram showing a conventional load adjustment device, and FIG. 2 is a block diagram showing an embodiment of the present invention. In the figure, (1) and (2) are speed setting devices, (4) and (
6) is a thyristor device, (5), ('I) is a load device, (8) is a load setting device, (9) //'i current converter,
(10) is a current converter. In each figure, the same reference numerals indicate the same or corresponding parts. Agent Makoto Kuzuno - 1st I'll Figure 2

Claims (1)

【特許請求の範囲】[Claims] 第１の負荷の制御量を調整することによシ第２の負荷の
制御量を一定に制御するものにおいて、第２の負荷の制
御量を検出する検出器、第２の負荷の制御量を設定する
負荷設定器、この負荷設定器の設定値と上記検出装置の
検出した検出値とを比較演算し、偏差に応じた信号を発
生する演算器、この演算器の発生する信号により上記第
１の負荷の制御量を調整する制御器を備えたことを特徴
とする負荷調整装置。In a device that controls the control amount of the second load to be constant by adjusting the control amount of the first load, a detector detects the control amount of the second load; A load setting device to be set, a calculation device that compares and calculates the setting value of this load setting device and the detected value detected by the detection device and generates a signal according to the deviation, and a signal generated by this calculation device to A load adjustment device comprising a controller that adjusts a control amount of a load.
JP58050885A 1983-03-24 1983-03-24 Load adjusting device Pending JPS59174906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58050885A JPS59174906A (en) 1983-03-24 1983-03-24 Load adjusting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58050885A JPS59174906A (en) 1983-03-24 1983-03-24 Load adjusting device

Publications (1)

Publication Number Publication Date
JPS59174906A true JPS59174906A (en) 1984-10-03

Family

ID=12871181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58050885A Pending JPS59174906A (en) 1983-03-24 1983-03-24 Load adjusting device

Country Status (1)

Country Link
JP (1) JPS59174906A (en)

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