JP2003340891A - Plastication controlling apparatus for injection molding machine - Google Patents

Plastication controlling apparatus for injection molding machine

Info

Publication number
JP2003340891A
JP2003340891A JP2002154140A JP2002154140A JP2003340891A JP 2003340891 A JP2003340891 A JP 2003340891A JP 2002154140 A JP2002154140 A JP 2002154140A JP 2002154140 A JP2002154140 A JP 2002154140A JP 2003340891 A JP2003340891 A JP 2003340891A
Authority
JP
Japan
Prior art keywords
motor
plasticizing
injection molding
molding machine
current
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
JP2002154140A
Other languages
Japanese (ja)
Other versions
JP3593116B2 (en
Inventor
Seishi Ochi
清史 越智
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.)
Japan Steel Works Ltd
Original Assignee
Japan Steel Works Ltd
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 Japan Steel Works Ltd filed Critical Japan Steel Works Ltd
Priority to JP2002154140A priority Critical patent/JP3593116B2/en
Publication of JP2003340891A publication Critical patent/JP2003340891A/en
Application granted granted Critical
Publication of JP3593116B2 publication Critical patent/JP3593116B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/7666—Measuring, controlling or regulating of power or energy, e.g. integral function of force
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/76026—Energy, power
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/76033—Electric current or voltage
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76177—Location of measurement
    • B29C2945/7618—Injection unit
    • B29C2945/76214—Injection unit drive means
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76344—Phase or stage of measurement
    • B29C2945/76367—Metering

Landscapes

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

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a plastication controlling apparatus for an injection molding machine which makes it possible to judge whether a plasticization state is stable or not. <P>SOLUTION: A current detection means (13) for detecting the driving current of a plasticization motor (6) for rotating a screw (2) during metering, a rotational speed detection means (9) for detecting the rotational speed of the motor (6), a torque calculation means (15) for calculating the driving torque of the motor from the driving current of the motor (6), and an operating means (16) for calculating the instant value of the driving power of the motor (6) based on the calculated torque and the detected rotational speed of the motor are provided. In addition, an integrator (17) for integrating the instant value of the calculated driving power of the motor (6) during plasticization is provided. <P>COPYRIGHT: (C)2004,JPO

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、電動射出成形機に
おける成形材料の可塑化状態を管理するための射出成形
機の可塑化管理装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasticization management device of an injection molding machine for managing the plasticization state of a molding material in an electric injection molding machine.

【０００２】[0002]

【従来の技術】従来、射出成形機における成形材料の可
塑化状態を管理する方法として、例えば特開２００２−
２８９５８号公報に示すものがあった。この従来方法に
おいては、計量動作中、スクリュを回転させるモータの
駆動電流を所定周期τ毎に測定し、その２乗積算値を求
め、１成形サイクル終了後、積算値に検出周期τ、モー
タの巻線抵抗Ｒをかけて消費電力Ｗを求める。そして、
その消費電力を１成形サイクルのサイクルタイムＴｃで
割って平均消費電力Ｑを求める。これらの消費電力Ｗ、
平均消費電力Ｑを表示し、表示された消費電力Ｗおよび
平均消費電力Ｑから可塑化状態を把握する。2. Description of the Related Art Conventionally, as a method for controlling the plasticized state of a molding material in an injection molding machine, for example, Japanese Patent Laid-Open No. 2002-2002.
There is one disclosed in Japanese Patent No. 28958. In this conventional method, during the metering operation, the drive current of the motor that rotates the screw is measured every predetermined period τ, and the square integrated value is obtained, and after one molding cycle is completed, the integrated value is the detection period τ and the motor The power consumption W is obtained by multiplying the winding resistance R. And
The average power consumption Q is obtained by dividing the power consumption by the cycle time Tc of one molding cycle. These power consumption W,
The average power consumption Q is displayed, and the plasticized state is grasped from the displayed power consumption W and average power consumption Q.

【０００３】図３は、上記公報に開示されたものと同様
な管理方法を示すフローチャートであり、このフローチ
ャートは、成形の１サイクルの流れを表したものであ
る。まず、成形開始（ＳＴＡＲＴ）時に、積算値Σを０
にリセットし（Ｇ１）、次に、サイクルタイム計測カウ
ンタＴｃをリセットする（Ｇ２）。その後、型閉じ工程
（Ｇ３）、射出工程（Ｇ４）、保圧工程（Ｇ５）を経
て、計量工程（Ｇ６）を実行する。工程Ｇ６では、モー
タ電流の２乗積算測定工程も同時に行う。その後、型開
き工程（Ｇ７）、突き出し工程（Ｇ８）を経て、１サイ
クルを終了し、その時のサイクルタイム計測カウンタＴ
ｃを読む（Ｇ９）。次に、計測した積算値Σから可塑化
消費電力および平均消費電力を計算して表示する（Ｇ１
０）。FIG. 3 is a flow chart showing a management method similar to that disclosed in the above publication, and this flow chart shows a flow of one cycle of molding. First, at the start of molding (START), the integrated value Σ is set to 0.
(G1), and then the cycle time measuring counter Tc is reset (G2). Then, after the mold closing step (G3), the injection step (G4) and the pressure holding step (G5), the weighing step (G6) is executed. In step G6, the step of measuring the square of the motor current is also performed at the same time. After that, the mold opening step (G7) and the ejection step (G8) are performed to complete one cycle, and the cycle time measurement counter T at that time is finished.
Read c (G9). Next, the plasticizing power consumption and the average power consumption are calculated and displayed from the measured integrated value Σ (G1
0).

【０００４】[0004]

【発明が解決しようとする課題】上述したように、従来
の可塑化状態の把握方法は、可塑化モータの電流と可塑
化モータの巻線抵抗から消費電力を計算し、可塑化状態
の把握をするように構成されている。従って、可塑化モ
ータの負荷状態（モータの負荷率相当）から可塑化状態
を把握しなければならず、必ずしも可塑化状態を表すと
は限らない。すなわちモータ巻線で消費される電力と可
塑化状態との因果関係が明確でない。As described above, according to the conventional method of grasping the plasticized state, the power consumption is calculated from the current of the plasticized motor and the winding resistance of the plasticized motor to grasp the plasticized state. Is configured to. Therefore, the plasticized state must be grasped from the load state of the plasticized motor (corresponding to the load factor of the motor), and does not always represent the plasticized state. That is, the causal relationship between the power consumed in the motor winding and the plasticized state is not clear.

【０００５】本発明は、上記のような問題を解決するた
めになされたものであり、可塑化状態が安定しているか
否かを正確に判別可能にすることができる射出成形機の
可塑化管理装置を得ることを目的とする。The present invention has been made to solve the above problems, and plasticization control of an injection molding machine capable of accurately determining whether or not the plasticized state is stable. The purpose is to obtain the device.

【０００６】[0006]

【課題を解決するための手段】上記目的を達成するため
に本発明に係る射出成形機の可塑化管理装置は、計量動
作中、スクリュ（２）を回転させる可塑化モータ（６）
の駆動電流を検出する電流検出手段（１３）と、スクリ
ュ（２）を回転させる可塑化モータ（６）の回転速度を
検出する回転速度検出手段（９）と、可塑化モータ
（６）の駆動電流から可塑化モータ（６）の駆動トルク
を算出するトルク算出手段（１５）と、算出された駆動
トルクと検出された可塑化モータ（６）の回転速度とに
基づいて可塑化モータ（６）の駆動電力の瞬時値を演算
する演算手段（１６）とを備えたものである。In order to achieve the above-mentioned object, a plasticizing control device for an injection molding machine according to the present invention comprises a plasticizing motor (6) for rotating a screw (2) during a measuring operation.
Current detecting means (13) for detecting the drive current of the motor, rotation speed detecting means (9) for detecting the rotation speed of the plasticizing motor (6) for rotating the screw (2), and driving of the plasticizing motor (6) A torque calculation means (15) for calculating a driving torque of the plasticizing motor (6) from the electric current, and a plasticizing motor (6) based on the calculated driving torque and the detected rotation speed of the plasticizing motor (6). The calculation means (16) for calculating the instantaneous value of the driving power of

【０００７】また、演算された駆動電力の瞬時値を可塑
化時間の間積算する積算器（１７）をさらに備えたこと
を特徴とするものである。Further, the present invention is characterized by further comprising an integrator (17) for integrating the calculated instantaneous value of the driving power during the plasticizing time.

【０００８】上記構成によれば、可塑化モータの電流値
から可塑化モータの駆動トルクを計算し、可塑化モータ
の回転速度検出値との積である可塑化駆動電力の瞬時値
Ｗ（＝Ｙ×τ）を得る。また、可塑化駆動電力の瞬時値
を可塑化時間の間演算し、それを積算することによって
可塑化駆動電力量Ｘを得る。得られた可塑化駆動電力の
瞬時値Ｗまたは可塑化駆動電力量Ｘを表示して可塑化駆
動電力または可塑化駆動電力量を監視することにより、
現在の可塑化の安定状態を判定することが可能となる。According to the above configuration, the driving torque of the plasticizing motor is calculated from the current value of the plasticizing motor, and the instantaneous value W (= Y) of the plasticizing driving power, which is the product of the driving torque of the plasticizing motor and the detected rotation speed of the plasticizing motor. X τ) is obtained. Further, the instantaneous value of the plasticizing drive power is calculated during the plasticizing time, and the integrated value is calculated to obtain the plasticizing drive power amount X. By displaying the obtained instantaneous value W of the plasticizing drive power or the plasticizing drive power amount X and monitoring the plasticizing drive power or the plasticizing drive power amount,
It is possible to determine the current stable state of plasticization.

【０００９】[0009]

【発明の実施の形態】まず、本発明の概要について説明
する。射出成形においては、同一金型による連続成形を
行い、多数の同一成形品を連続して生産する使用方法が
一般的である。従って、一旦成形品が安定すれば、ショ
ット毎に検出される可塑化モータの駆動電力量や、可塑
化モータの瞬時駆動電力も一定値を示すはずである。本
発明では、この点に着目し、可塑化モータ駆動電力量お
よび瞬時駆動電力を把握可能にする。これによって、成
形安定の判断の一手段として、または異物混入などの検
出手段として利用することを可能にし、成形機ユーザー
にとって成形作業を行いやすい機械を提供することが可
能となる。DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the outline of the present invention will be described. In injection molding, a general method of use is to perform continuous molding using the same mold and continuously produce a large number of identical molded products. Therefore, once the molded product is stable, the drive power amount of the plasticizing motor detected for each shot and the instantaneous drive power of the plasticizing motor should also show a constant value. In the present invention, focusing on this point, the plasticizing motor drive power amount and the instantaneous drive power can be grasped. As a result, it becomes possible to use it as a means for judging the molding stability or as a means for detecting the inclusion of foreign matter, and it is possible to provide a machine that facilitates the molding work for the user of the molding machine.

【００１０】本発明の一実施の形態を図１及び図２に示
す。図１は、本発明の実施の形態に係る射出成形機の可
塑化管理装置の構成を示すブロック図である。また、図
２は、本発明に係る射出成形機の可塑化管理装置による
可塑化電力瞬時値Ｗ及び可塑化電力量Ｘを演算する処理
を表すフローチャートである。図１において、まず、指
令発生コントローラ１０から可塑化スクリュ２の回転数
指令に相当する可塑化モータ６の速度指令が与えられ
る。An embodiment of the present invention is shown in FIGS. FIG. 1 is a block diagram showing a configuration of a plasticization management device of an injection molding machine according to an embodiment of the present invention. Further, FIG. 2 is a flowchart showing a process of calculating the instantaneous value of plasticizing power W and the amount of plasticizing power X by the plasticizing management device of the injection molding machine according to the present invention. In FIG. 1, first, a speed command of the plasticizing motor 6 corresponding to the rotation speed command of the plasticizing screw 2 is given from the command generation controller 10.

【００１１】一方、可塑化モータ６に取り付けられたパ
ルスジェネレータ７から得られる回転角に比例したパル
ス情報は、速度検出手段としての速度信号処理器９によ
って可塑化モータ６の速度検出値に変換される。速度信
号処理器９による速度検出値は、指令発生コントローラ
１０からの速度指令と比較され、その偏差が速度制御器
１１に入力される。速度制御器１１では、比例、積分、
微分等の演算が行われ、可塑化モータ６のトルクに相当
する電流指令を発生し、速度指令と速度検出値が一致す
るように動作する。On the other hand, pulse information proportional to the rotation angle obtained from the pulse generator 7 attached to the plasticizing motor 6 is converted into a speed detection value of the plasticizing motor 6 by a speed signal processor 9 as speed detecting means. It The speed detection value by the speed signal processor 9 is compared with the speed command from the command generation controller 10, and the deviation thereof is input to the speed controller 11. In the speed controller 11, proportional, integral,
A calculation such as differentiation is performed, a current command corresponding to the torque of the plasticizing motor 6 is generated, and operation is performed so that the speed command and the speed detection value match.

【００１２】速度制御器１１からの電流指令は、可塑化
モータ６の動力線に取り付けられた電流センサ１３から
得られる電流検出値と比較され、その偏差が電流制御器
１２に入力される。電流制御器１２では、比例、積分、
微分等の演算が行われ、電圧型インバータ１４への電圧
指令を発生し、電流指令と電流検出値が一致するように
動作する。電流制御器１２からの電圧指令は、電圧型イ
ンバータ１４によって電力増幅され、可塑化モータ６に
電力が供給される。The current command from the speed controller 11 is compared with the current detection value obtained from the current sensor 13 attached to the power line of the plasticizing motor 6, and the deviation thereof is input to the current controller 12. In the current controller 12, proportional, integral,
An operation such as differentiation is performed, a voltage command is generated for the voltage-type inverter 14, and the current command and the current detection value operate so that they match each other. The voltage command from the current controller 12 is power-amplified by the voltage-type inverter 14, and power is supplied to the plasticizing motor 6.

【００１３】可塑化モータ６は、モータ軸に取り付けら
れた駆動プーリ５を回転し、駆動プーリ５とタイミング
ベルト８によって連結された従動プーリ４を回転させ
る。従動プーリ４は、従動軸を回転させるが、従動軸に
はカップリング３によってスクリュ２が連結されてお
り、シリンダ１内に挿入されたスクリュ２が回転するこ
とによって、樹脂の可塑化（計量動作）が行われる。The plasticizing motor 6 rotates the drive pulley 5 attached to the motor shaft, and rotates the driven pulley 4 connected to the drive pulley 5 by the timing belt 8. The driven pulley 4 rotates the driven shaft, and the screw 2 is connected to the driven shaft by the coupling 3. The screw 2 inserted into the cylinder 1 rotates to plasticize the resin (measurement operation). ) Is done.

【００１４】次に、電流センサ１３から得られる電流検
出値は、トルク検出手段としての変換器（トルク定数）
１５によりトルク定数Ｋによって可塑化モータ６のトル
ク検出値相当の量に変換され、掛算器１６に入力され
る。また、速度信号処理器９によって得られる可塑化モ
ータ６の速度検出値も掛算器１６に入力されて、可塑化
電力瞬時値Ｗが演算される。また、可塑化電力瞬時値
は、積算器１７によって積算され（積算値Σ）、サンプ
リング時間ｔを乗じた値ｔΣが可塑化電力量Ｘとして演
算される。Next, the current detection value obtained from the current sensor 13 is converted into a converter (torque constant) as torque detection means.
The torque constant K is converted into an amount corresponding to the detected torque value of the plasticizing motor 6 by 15 and input to the multiplier 16. Further, the speed detection value of the plasticizing motor 6 obtained by the speed signal processor 9 is also input to the multiplier 16 to calculate the plasticizing power instantaneous value W. The instantaneous value of plasticizing power is integrated by the integrator 17 (integrated value Σ), and the value tΣ multiplied by the sampling time t is calculated as the amount of plasticizing power X.

【００１５】次に、図１に示す射出成形機の可塑化管理
装置による可塑化電力瞬時値Ｗ及び可塑化電力量Ｘを演
算する処理について図２を参照して説明する。図２は、
成形の１サイクルの流れを示しており、まず、サイクル
開始と同時に図１に示される指令発生コントローラ１０
からリセット信号が発生し、可塑化電力量を積算する積
算器１７をリセットする（ステップＳ１）。次に、型閉
じ工程（ステップＳ２）、射出工程（ステップＳ３）、
保圧工程（ステップＳ４）を経て計量工程（ステップＳ
５）を行う。Next, the process of calculating the instantaneous plasticizing power value W and the plasticizing power amount X by the plasticizing management device of the injection molding machine shown in FIG. 1 will be described with reference to FIG. Figure 2
The flow of one cycle of molding is shown. First, the command generation controller 10 shown in FIG.
Generates a reset signal, and resets the integrator 17 that integrates the amount of plasticized power (step S1). Next, the mold closing step (step S2), the injection step (step S3),
After the pressure holding step (step S4), the weighing step (step S
Perform 5).

【００１６】計量工程（ステップＳ５）において、図１
に示される掛算器１６と積算器１７とにより可塑化電力
瞬時値Ｗおよび可塑化電力量Ｘが演算され、図示しない
表示装置により表示される。計量工程が終了すると、型
開き工程（ステップＳ６）、突き出し工程（ステップＳ
７）を経てサイクルが完了する（ステップＳ８）。In the weighing process (step S5), as shown in FIG.
The plasticizing power instantaneous value W and the plasticizing power amount X are calculated by the multiplier 16 and the integrator 17 shown in FIG. When the weighing process is completed, the mold opening process (step S6) and the ejection process (step S6)
After 7), the cycle is completed (step S8).

【００１７】射出成形機の動作は、このサイクルが繰り
返し実行される。成形機ユーザーは、このフローにおい
て繰り返し実行される計量工程（ステップＳ５）におい
て、可塑化電力瞬時値Ｗおよび可塑化電力量の値がサイ
クル毎に図示しない表示装置に表示され、モニタするこ
とができる。This cycle of the operation of the injection molding machine is repeatedly executed. The molding machine user can display and monitor the instantaneous plasticizing power value W and the value of the plasticizing power amount on a display device (not shown) for each cycle in the weighing process (step S5) repeatedly executed in this flow. .

【００１８】したがって、上述した実施の形態によれ
ば、ショット毎の可塑化モータの駆動電力量が表示され
るため、ショット毎の駆動電力量の変化を知ることがで
きるようになる。それによって、現在の成形状態が安定
状態にあるのか、過渡状態にあるのかを判断することが
可能となる。また、瞬時駆動電力が表示され、大きな瞬
時駆動電力変動が確認されれば、異物混入などの状態を
検出することも可能となる。Therefore, according to the above-described embodiment, since the drive power amount of the plasticizing motor for each shot is displayed, it is possible to know the change in the drive power amount for each shot. This makes it possible to judge whether the current molding state is in a stable state or in a transient state. Further, if the instantaneous driving power is displayed and a large fluctuation in the instantaneous driving power is confirmed, it is possible to detect a state such as foreign matter mixing.

【００１９】[0019]

【発明の効果】以上のように、本発明によれば、可塑化
電力瞬時値Ｗ及び可塑化電力量Ｘを把握することができ
るようにしたので、成形安定の判断の一手段として、ま
たは異物混入などの検出手段として利用することがで
き、成形機ユーザーにとって成形作業を行いやすい機械
を提供することが可能となる。As described above, according to the present invention, the instantaneous value W of plasticizing power and the amount X of plasticizing power can be grasped. It is possible to provide a machine that can be used as a means for detecting mixing and the like and that is easy for the molding machine user to perform molding work.

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

【図１】 図１は、本発明の実施の形態に係る射出成形
機の可塑化管理装置の構成を示すブロック図である。FIG. 1 is a block diagram showing a configuration of a plasticization management device of an injection molding machine according to an embodiment of the present invention.

【図２】 本発明に係る射出成形機の可塑化管理装置に
よる可塑化電力瞬時値Ｗ及び可塑化電力量Ｘを演算する
処理を表すフローチャートである。本発明の処理の流れ
を示すフローチャートである。FIG. 2 is a flowchart showing a process of calculating a plasticizing power instantaneous value W and a plasticizing power amount X by a plasticizing management device for an injection molding machine according to the present invention. It is a flow chart which shows a flow of processing of the present invention.

【図３】 特開２００２−２８９５８号公報に開示され
たものと同様な管理方法を示すフローチャートである。FIG. 3 is a flowchart showing a management method similar to that disclosed in Japanese Patent Laid-Open No. 2002-28958.

【符号の説明】[Explanation of symbols]

１ シリンダ、２ スクリュ、３ カップリング、４
従動プーリ、５ 駆動プーリ、６ 可塑化モータ、７
パルスジェネレータ、８ タイミングベルト、９ 速度
信号処理器、１０ 指令発生コントローラ、１１ 速度
制御器、１２電流制御器、１３ 電流センサ、１４ 電
圧型インバータ、１５ 変換器、１６掛算器、１７ 積
算器。1 cylinder, 2 screws, 3 couplings, 4
Driven pulley, 5 drive pulley, 6 plasticizing motor, 7
Pulse generator, 8 timing belt, 9 speed signal processor, 10 command generation controller, 11 speed controller, 12 current controller, 13 current sensor, 14 voltage type inverter, 15 converter, 16 multiplier, 17 integrator.

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 計量動作中、スクリュ（２）を回転させ
る可塑化モータ（６）の駆動電流を検出する電流検出手
段（１３）と、スクリュ（２）を回転させる可塑化モー
タ（６）の回転速度を検出する回転速度検出手段（９）
と、可塑化モータ（６）の駆動電流からモータの駆動ト
ルクを算出するトルク算出手段（１５）と、算出された
駆動トルクと検出されたモータの回転速度とに基づいて
可塑化モータ（６）の駆動電力の瞬時値を演算する演算
手段（１６）とを備えた射出成形機の可塑化管理装置。1. A current detecting means (13) for detecting a drive current of a plasticizing motor (6) for rotating a screw (2) during a metering operation, and a plasticizing motor (6) for rotating the screw (2). Rotational speed detection means (9) for detecting rotational speed
And a torque calculation means (15) for calculating the drive torque of the motor from the drive current of the plasticizing motor (6), and the plasticizing motor (6) based on the calculated drive torque and the detected rotation speed of the motor. And a calculation means (16) for calculating an instantaneous value of the driving power of the injection molding machine. 【請求項２】 請求項１に記載の射出成形機の可塑化管
理装置において、演算された駆動電力の瞬時値を可塑化
時間の間積算する積算器（１７）をさらに備えたことを
特徴とする射出成形機の可塑化管理装置。2. The plasticizing management device for an injection molding machine according to claim 1, further comprising an integrator (17) for integrating the calculated instantaneous value of the driving power during the plasticizing time. A plasticization management device for injection molding machines.
JP2002154140A 2002-05-28 2002-05-28 Plasticization management device for injection molding machine Expired - Lifetime JP3593116B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002154140A JP3593116B2 (en) 2002-05-28 2002-05-28 Plasticization management device for injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002154140A JP3593116B2 (en) 2002-05-28 2002-05-28 Plasticization management device for injection molding machine

Publications (2)

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JP2003340891A true JP2003340891A (en) 2003-12-02
JP3593116B2 JP3593116B2 (en) 2004-11-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2447034A1 (en) * 2010-10-27 2012-05-02 Sumitomo Heavy Industries, Ltd. Injection moulding machine comprising an energy consumption detecting part
WO2020170552A1 (en) 2019-02-21 2020-08-27 日精樹脂工業株式会社 Molding assistance device for injection molding machine
WO2021157737A1 (en) 2020-02-05 2021-08-12 日精樹脂工業株式会社 Injection molding assistance device and injection molding machine comprising same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2447034A1 (en) * 2010-10-27 2012-05-02 Sumitomo Heavy Industries, Ltd. Injection moulding machine comprising an energy consumption detecting part
JP2012091424A (en) * 2010-10-27 2012-05-17 Sumitomo Heavy Ind Ltd Injection molding machine
WO2020170552A1 (en) 2019-02-21 2020-08-27 日精樹脂工業株式会社 Molding assistance device for injection molding machine
WO2021157737A1 (en) 2020-02-05 2021-08-12 日精樹脂工業株式会社 Injection molding assistance device and injection molding machine comprising same

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