JPS60125618A - Driving device of injection mechanism in injection molding machine - Google Patents
Driving device of injection mechanism in injection molding machineInfo
- Publication number
- JPS60125618A JPS60125618A JP58233541A JP23354183A JPS60125618A JP S60125618 A JPS60125618 A JP S60125618A JP 58233541 A JP58233541 A JP 58233541A JP 23354183 A JP23354183 A JP 23354183A JP S60125618 A JPS60125618 A JP S60125618A
- Authority
- JP
- Japan
- Prior art keywords
- injection
- motors
- motor
- clutch
- injection mechanism
- 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
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
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
- B29C45/50—Axially movable screw
- B29C45/5008—Drive means therefor
-
- 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
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
- B29C2045/1792—Machine parts driven by an electric motor, e.g. electric servomotor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野と発明の目的 本弁明は、射出成形機の射出機構の駆動装置に関する。[Detailed description of the invention] Industrial application field and purpose of the invention The present invention relates to a drive device for an injection mechanism of an injection molding machine.
従来、射出成形機の射出機構におけるスクリューのスラ
スト方向への駆動は、油圧やモータによって行なわれて
いたが、特にモータで駆動し、射出時間を高速化する場
合、大きな馬力のモータを必要とし、これを例えばサー
ボモータで実現しようとするとロータエナーシャが大き
くなり、レスポンスを悪化し、レスポンスを良くするに
は非常に特殊なモータが必要となり、コストも増大する
。Conventionally, driving the screw in the thrust direction in the injection mechanism of an injection molding machine has been done using hydraulic pressure or a motor, but especially when driving with a motor to speed up the injection time, a large horsepower motor is required. If this is attempted to be achieved using a servo motor, for example, the rotor energy will increase and the response will deteriorate, and a very special motor will be required to improve the response, which will increase costs.
そこで、本発明の目的は、射出成形機の射出機構の射出
のための駆動において、エナーシャの少ない駆動装置を
提供することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a drive device with less energy in driving the injection mechanism of an injection molding machine for injection.
発明の構成
本発明は、射出成形機における射出ＩＩ構駆動装置にお
いて、上記射出機構を複数のモータによって駆動するよ
うにした射出成形機における射出機構駆動装置である。Structure of the Invention The present invention is an injection mechanism drive device for an injection molding machine, in which the injection mechanism is driven by a plurality of motors.
実施例
第１図は、本発明の一実施例で、１はスクリュー射出式
の射出成形機のスクリュー、２は該スクリューの軸にカ
ップリング装置３で連結されたボールネジ、４は該ボー
ルネジ２と螺合するナラ１〜．５は該ナラ１〜４上に設
けられた歯車、６，７は該歯車５と噛み合う歯車、８は
上記歯車６に連結されたサーボモータ、９は上記歯車７
にクラッチ１０を介して連結されたモータである。Embodiment FIG. 1 shows an embodiment of the present invention, in which 1 is a screw of a screw injection type injection molding machine, 2 is a ball screw connected to the shaft of the screw by a coupling device 3, and 4 is a screw with the ball screw 2. Screwing oak 1~. Reference numeral 5 denotes a gear provided on the necks 1 to 4, 6 and 7 gears meshing with the gear 5, 8 a servo motor connected to the gear 6, and 9 the gear 7.
The motor is connected to the motor via a clutch 10.
上記構成において、高速で高射出圧力を必要な射出の場
合は、」−記クラッチ１０を入れると共にモータ９．サ
ーボモータ８を同時に駆動する。モータ９及びサーボモ
ータ８の駆動により、歯車７゜６が回転し噛み合う歯車
５を回転さゼ、ナツト４を回転させながらナツト４に螺
合するボールネジ２はナツト４によって送られ、スクリ
ュー１を第１図中左方へ前進させ、射出を行う。この場
合、モータ８，９の２つのモータの駆動力により、スク
リュー１を前進させるから、高速、高射出圧力の射出が
得られる。そして、２つのモータにより駆動したから、
同一駆動力を１つのモータによって達成するときと比較
し、駆動開始及び停止時にモータのロータエナーシャが
小さくてすみ、レスポンスを悪化することはない。また
、射出時にスクリュー１が設定位置に達成したことをサ
ーボモータ８の検出器で検出したとき上記クラッチ１０
を切るようにすれば、モータ９のロータのエナーシャは
射出機構に伝動されず、よりレスポンスのよい射出機構
が得られる。In the above configuration, in the case of injection requiring high speed and high injection pressure, the clutch 10 is engaged and the motor 9 is turned on. The servo motor 8 is driven at the same time. Driven by the motor 9 and the servo motor 8, the gear 7.6 rotates to rotate the gear 5 that meshes with it, and while the nut 4 is rotating, the ball screw 2 screwed into the nut 4 is fed by the nut 4 and the screw 1 is rotated. Move it forward to the left in Figure 1 and perform injection. In this case, since the screw 1 is advanced by the driving force of the two motors 8 and 9, injection at high speed and high injection pressure can be achieved. And since it was driven by two motors,
Compared to the case where the same driving force is achieved by one motor, the rotor energy of the motor is small when starting and stopping the drive, and the response is not deteriorated. Further, when the detector of the servo motor 8 detects that the screw 1 has reached the set position during injection, the clutch 10
By turning off the rotor of the motor 9, the energy of the rotor of the motor 9 is not transmitted to the injection mechanism, and an injection mechanism with better response can be obtained.
なお、上記実施例では、サーボモータ８以外に１つのモ
ータ９を設けたが、さらに多くのモータを設け、クラッ
チによってこれらのモータの駆動力を射出機構に伝動す
るか否か選択し、射出速度、射出圧力に応じて射出機構
を駆動するモータの数を選択すればよく、省エネになる
と共に小馬力でよいとき等はロータエナーシャを小さく
することができるから、駆動開始、停止時のレスポンス
をよくすることができる。さらに、射出行程における射
出速度、射出圧力の制御も、上記クラッチを選択的に作
動及び不作動にすることによって達成することができる
。In addition, in the above embodiment, one motor 9 was provided in addition to the servo motor 8, but many more motors are provided, and a clutch is used to select whether or not to transmit the driving force of these motors to the injection mechanism, and to control the injection speed. The number of motors that drive the injection mechanism can be selected according to the injection pressure, which saves energy and reduces the rotor energy when a small horsepower is required, which improves the response when starting and stopping the drive. can do well. Furthermore, control of the injection speed and injection pressure during the injection stroke can also be achieved by selectively activating and deactivating the clutch.
第２図は、本発明の第２の実施例で、１はスクリュー、
２はボールネジ、３はカップリング装置、４はナツト、
５は歯車で、これらは第１図に示す５−
第１の実施例と同一である。１１は上記歯車５と噛み合
うｍ車で、該歯車１１はす〜ボモータ１２の回転軸１７
に固着され、また、該回転軸１７はクラッチ１５を介し
てモータ１３の回転軸１８に連結され、さらに、該モー
タ１３の回転軸１８はクラッチ１６を介してモータ１４
の回転軸１９に連結されている。そこで、低速で、低射
出圧力でよい射出の場合には、サーボモータ１２のみ駆
動させて歯車１１．５を回転させ、ナツト４によりボー
ルネジ２及びスクリュー１を第２図左方へ前進させ、射
出を行えばよく、ロータのエナーシャは小さくてすみ、
駆動開始、停止のレスポンスをよくすることができる。FIG. 2 shows a second embodiment of the present invention, in which 1 is a screw;
2 is a ball screw, 3 is a coupling device, 4 is a nut,
5 is a gear, which is the same as the 5-first embodiment shown in FIG. Reference numeral 11 denotes an m wheel that meshes with the gear 5, and the gear 11 is connected to the rotating shaft 17 of the motor 12.
The rotating shaft 17 is connected to the rotating shaft 18 of the motor 13 via the clutch 15, and the rotating shaft 18 of the motor 13 is connected to the motor 14 via the clutch 16.
It is connected to a rotating shaft 19 of. Therefore, in the case of injection that requires low speed and low injection pressure, only the servo motor 12 is driven to rotate the gear 11.5, and the nut 4 advances the ball screw 2 and screw 1 to the left in FIG. , the rotor's energy can be small, and
It is possible to improve the response when starting and stopping the drive.
また、射出速度、射出圧力が上昇するにつれて、クラッ
チ１５を入れてサーボモータ１２と共にモータ１３を駆
動したり、さらに、クラッチ１６を入れてモータ１３，
１４゜サーボモータ１２を共に駆動して、高速、大馬力
で駆動させるようにする。また、スクリュー１が設定値
に達したときはクラッチ１５を切ってロータのエナーシ
ャを射出機構へ伝動しないようにす６−
ることや、クラッチの入り、切りで射出速度や射出圧力
の制御を行うようにすることも第１の実施例と同様であ
る。また、第２の実施例で示すＪ：うに、モータを直列
に接続すると共に、第１図のように並列にモータを射出
機構へ連結してもよい。Furthermore, as the injection speed and injection pressure increase, the clutch 15 is engaged to drive the motor 13 together with the servo motor 12, and the clutch 16 is engaged to drive the motor 13,
A 14° servo motor 12 is driven together to drive at high speed and high horsepower. In addition, when the screw 1 reaches the set value, the clutch 15 is disengaged to prevent the rotor energy from being transmitted to the injection mechanism6-, and the injection speed and injection pressure are controlled by engaging and disengaging the clutch. This is also the same as in the first embodiment. Further, as shown in the second embodiment, the motors may be connected in series, and the motors may also be connected to the injection mechanism in parallel as shown in FIG.
なお、上記実施例では、１つのモータをサーボモータと
したが、すべてのモータを汎用のモータとし、スクリュ
ーの位置検出器を設けて制御を行ってもよい。In the above embodiment, one motor is a servo motor, but all the motors may be general-purpose motors and a screw position detector may be provided for control.
発明の効果
本発明は、射出成形機の射出機構を複数のモータによっ
て駆動するようにしたから、１つの大馬力のモータに比
較して、ロータのエナーシャの影響を少なくすることが
でき、レスポンスのよい射出機構の駆動装置を得ること
ができる。また、クラッチを介して各モータの駆動力が
射出機構に加わるようにしたから、クラッチの動作、不
動作を制御することにより、上記ロータのエナーシャを
小さくすることができると共に、射出の射出速度。Effects of the Invention In the present invention, since the injection mechanism of an injection molding machine is driven by a plurality of motors, the influence of rotor energy can be reduced compared to a single high-horsepower motor, and the response can be improved. A good injection mechanism driving device can be obtained. Furthermore, since the driving force of each motor is applied to the injection mechanism via the clutch, by controlling the operation and non-operation of the clutch, the energy of the rotor can be reduced, and the injection speed of injection can be reduced.
射出圧力の制御をも行わせることができる。Injection pressure can also be controlled.
第１図は、本発明の第１の実施例を示す図、第２図は、
同第２の実施例を示す図である。
１・・・スクリュー、２・・・ボールネジ、４・・・ナ
ツト、５．６，７．１１・・・歯車、８，１２・・・サ
ーボモータ、９，１３．１４・・・モータ、１０．１５
．１６・・・クラッチ。
特許出願人
ファナック 株式会社FIG. 1 is a diagram showing a first embodiment of the present invention, and FIG. 2 is a diagram showing a first embodiment of the present invention.
It is a figure which shows the same 2nd Example. 1... Screw, 2... Ball screw, 4... Nut, 5.6, 7.11... Gear, 8, 12... Servo motor, 9, 13.14... Motor, 10 .15
．． 16...Clutch. Patent applicant FANUC Co., Ltd.
Claims (7)
いて、上記射出機構を複数のモータによって駆動するよ
うにした射出成形機における射出機構駆動装置。(1) l) An injection mechanism drive device for an injection molding machine, in which the injection mechanism is driven by a plurality of motors.
記射出機構を駆動するようにした特許請求の範囲第１項
記載の射出成形機における射出機構駆動装置。(2) An injection mechanism drive device for an injection molding machine according to claim 1, wherein the plurality of motors selectively drive the injection mechanism via a clutch.
れている特許請求の範囲第１項または第２項記載の射出
成形機における射出機構駆動装置。(3) An injection mechanism drive device in an injection molding machine according to claim 1 or 2, wherein the plurality of motors are connected in parallel to the injection mechanism.
され、上記クラッチを選択的に作動さぜ、上記射出機構
を駆動するようにした特許請求の範囲第１項記載の射出
成形機における射出機構駆動装置。(4) Injection in the injection molding machine according to claim 1, wherein the plurality of motors are connected in series via a clutch, and the clutch is selectively operated to drive the injection mechanism. Mechanism drive device.
に連結され、他は並列に上記射出機構に連結されている
特許請求の範囲第１項記載の射出成形機における射出機
構駆動装置。(5) The injection mechanism driving device for an injection molding machine according to claim 1, wherein some of the plurality of motors are connected in series via a clutch, and the others are connected in parallel to the injection mechanism.
フトに設けられたネジと該ネジと螺合するナツトと、該
ナツトに設けられた歯車を有し、該歯車と噛み合う歯車
を上記複数のモータが駆動するようにした特許請求の範
囲第１項、第２項、第３項、第４項または第５項記載の
射出成形機における射出機構駆動装置。(6) The injection mechanism has a screw provided on a shaft connected to the screw, a nut screwed into the screw, and a gear provided on the nut, and the gear meshed with the gear is connected to the plurality of motors. An injection mechanism driving device in an injection molding machine according to claim 1, 2, 3, 4, or 5, wherein the injection mechanism is driven by:
ータである特許請求の範囲第１項、第２項、第３項、第
４項、第５項または第６項記載の射出成形機における射
出機構駆動装置。(7) Injection molding according to claim 1, 2, 3, 4, 5, or 6, wherein at least one of the plurality of motors is a servo motor. Injection mechanism drive device in a machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58233541A JPS60125618A (en) | 1983-12-13 | 1983-12-13 | Driving device of injection mechanism in injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58233541A JPS60125618A (en) | 1983-12-13 | 1983-12-13 | Driving device of injection mechanism in injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60125618A true JPS60125618A (en) | 1985-07-04 |
Family
ID=16956664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58233541A Pending JPS60125618A (en) | 1983-12-13 | 1983-12-13 | Driving device of injection mechanism in injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60125618A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61237615A (en) * | 1985-04-15 | 1986-10-22 | Toshiba Mach Co Ltd | Motor-driven injection molding machine |
| JPS61244520A (en) * | 1985-04-23 | 1986-10-30 | Toshiba Mach Co Ltd | Motor-driven injection molding machine |
| WO1987003246A1 (en) * | 1985-11-30 | 1987-06-04 | Fanuc Ltd | Injection driving device |
| JPS6342826A (en) * | 1986-08-11 | 1988-02-24 | Fanuc Ltd | Mold clamping device in injection molder |
| JP2001162396A (en) * | 1999-09-30 | 2001-06-19 | Aisin Seiki Co Ltd | Motor driven press |
| EP1185409A1 (en) * | 1999-04-16 | 2002-03-13 | Milacron Inc. | Dual motor drive system for injection molding machines |
| WO2008068201A3 (en) * | 2006-12-04 | 2008-08-21 | Siemens Ag | Drive arrangement for injection molding machines and extruders, comprising two motors |
| JP2015023607A (en) * | 2013-07-16 | 2015-02-02 | 株式会社アイエイアイ | Actuator and driving method for the same |
| JP2017524885A (en) * | 2014-05-15 | 2017-08-31 | 華南理工大学 | Power time series conversion method and apparatus for product batch production |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4842466U (en) * | 1971-09-22 | 1973-05-31 | ||
| JPS5172808A (en) * | 1974-12-19 | 1976-06-24 | Mitsubishi Motors Corp | NENPIKEIGENGATAJIDOSHAYOKUDOSOCHI |
| JPS5862030A (en) * | 1981-10-08 | 1983-04-13 | Nissei Plastics Ind Co | Injection molder |
-
1983
- 1983-12-13 JP JP58233541A patent/JPS60125618A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4842466U (en) * | 1971-09-22 | 1973-05-31 | ||
| JPS5172808A (en) * | 1974-12-19 | 1976-06-24 | Mitsubishi Motors Corp | NENPIKEIGENGATAJIDOSHAYOKUDOSOCHI |
| JPS5862030A (en) * | 1981-10-08 | 1983-04-13 | Nissei Plastics Ind Co | Injection molder |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0341050B2 (en) * | 1985-04-15 | 1991-06-20 | ||
| JPS61237615A (en) * | 1985-04-15 | 1986-10-22 | Toshiba Mach Co Ltd | Motor-driven injection molding machine |
| JPS61244520A (en) * | 1985-04-23 | 1986-10-30 | Toshiba Mach Co Ltd | Motor-driven injection molding machine |
| WO1987003246A1 (en) * | 1985-11-30 | 1987-06-04 | Fanuc Ltd | Injection driving device |
| JPS62128724A (en) * | 1985-11-30 | 1987-06-11 | Fanuc Ltd | Driving device for injection molding |
| US4741685A (en) * | 1985-11-30 | 1988-05-03 | Fanuc Ltd | Injection drive apparatus |
| JPH0338100B2 (en) * | 1985-11-30 | 1991-06-07 | Fanuc Ltd | |
| JPS6342826A (en) * | 1986-08-11 | 1988-02-24 | Fanuc Ltd | Mold clamping device in injection molder |
| EP1185409A4 (en) * | 1999-04-16 | 2002-12-04 | Cincinnati Milacron Inc | Dual motor drive system for injection molding machines |
| EP1185409A1 (en) * | 1999-04-16 | 2002-03-13 | Milacron Inc. | Dual motor drive system for injection molding machines |
| JP2001162396A (en) * | 1999-09-30 | 2001-06-19 | Aisin Seiki Co Ltd | Motor driven press |
| JP4682405B2 (en) * | 1999-09-30 | 2011-05-11 | アイシン精機株式会社 | Electric press |
| WO2008068201A3 (en) * | 2006-12-04 | 2008-08-21 | Siemens Ag | Drive arrangement for injection molding machines and extruders, comprising two motors |
| US8148863B2 (en) | 2006-12-04 | 2012-04-03 | Siemens Aktiengesellschaft | Drive arrangement |
| JP2015023607A (en) * | 2013-07-16 | 2015-02-02 | 株式会社アイエイアイ | Actuator and driving method for the same |
| JP2017524885A (en) * | 2014-05-15 | 2017-08-31 | 華南理工大学 | Power time series conversion method and apparatus for product batch production |
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