JP3023764B2 - Cooling structure of driver for electric injection molding machine - Google Patents
Cooling structure of driver for electric injection molding machineInfo
- Publication number
- JP3023764B2 JP3023764B2 JP8070378A JP7037896A JP3023764B2 JP 3023764 B2 JP3023764 B2 JP 3023764B2 JP 8070378 A JP8070378 A JP 8070378A JP 7037896 A JP7037896 A JP 7037896A JP 3023764 B2 JP3023764 B2 JP 3023764B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- injection molding
- molding machine
- heat sink
- cooling structure
- 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.)
- Expired - Fee Related
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
- B29C45/72—Heating or cooling
-
- 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
-
- 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
- B29C45/72—Heating or cooling
- B29C2045/7271—Cooling of drive motors
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明はサーボモータを駆動
源とする駆動装置を備えた電動射出成形機に関し、特に
サーボモータのドライバとして電力供給を行うためのサ
ーボアンプの冷却構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric injection molding machine having a driving device driven by a servo motor, and more particularly to a cooling structure of a servo amplifier for supplying power as a driver of a servo motor.
【０００２】[0002]
【従来の技術】電動射出成形機には、射出装置をはじ
め、型締装置やエジェクタ装置等にサーボモータを駆動
源とする駆動装置を備えている。特に、射出装置や型締
装置には出力の大きいサーボモータが使われ、このサー
ボモータにはサーボアンプを通して電力が供給される。
そして、サーボアンプでは電力増幅素子が使われている
ため発熱量が大きく、強制冷却手段が必要となる。2. Description of the Related Art An electric injection molding machine is provided with a driving device using a servo motor as a driving source in an injection device, a mold clamping device, an ejector device, and the like. In particular, a servo motor having a large output is used for an injection device and a mold clamping device, and power is supplied to this servo motor through a servo amplifier.
Further, since the power amplifier is used in the servo amplifier, a large amount of heat is generated, and a forced cooling unit is required.
【０００３】図３を参照して、従来の強制冷却手段の一
例について説明する。通常、サーボアンプ３１のような
電気系構造体は射出成形機本体の下部の長手方向の端部
に構成されたケーシング３０内に収容される。このケー
シング３０は、他の構造物を収容している空間とは壁板
３２で区画され、防塵、防水構造の空間を形成してい
る。壁板３２にはサーボアンプ３１が取り付けられる。
サーボアンプ３１には、強制冷却用のモータファン３６
が設けられる。ケーシング３０には、空気取入れ口３３
と空気排出口３４とが設けられ、空気排出口３４には強
制排気用のモータファン３５が設置される。また、空気
取入れ口３３と空気排出口３４とにはそれぞれ、サーボ
アンプ３１を保護するための防塵、防水用のフィルタ４
０が取り付けられる。Referring to FIG. 3, an example of a conventional forced cooling means will be described. Usually, an electric system structure such as the servo amplifier 31 is housed in a casing 30 formed at a longitudinal end of a lower portion of the main body of the injection molding machine. The casing 30 is separated from a space accommodating other structures by a wall plate 32 to form a dustproof and waterproof structure. The servo amplifier 31 is attached to the wall plate 32.
The servo amplifier 31 has a motor fan 36 for forced cooling.
Is provided. The casing 30 has an air inlet 33.
And an air exhaust port 34, and a motor fan 35 for forced exhaust is installed in the air exhaust port 34. A dust filter 4 and a waterproof filter 4 for protecting the servo amplifier 31 are provided in the air inlet 33 and the air outlet 34, respectively.
0 is attached.
【０００４】このような冷却構造により、空気取入れ口
３３から取り入れられた空気は、モータファン３６によ
りサーボアンプ３１を冷却し、モータファン３５によっ
てケーシング３０外に排出される。なお、モータファン
３５，３６の数は一台のみ図示しているが、実際には複
数台となるのが普通である。With such a cooling structure, the air taken in from the air inlet 33 cools the servo amplifier 31 by the motor fan 36 and is discharged out of the casing 30 by the motor fan 35. Although only one motor fan 35, 36 is shown in the figure, the number of motor fans 35, 36 is usually more than one.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記の
冷却構造ではサーボアンプ３１で発熱した熱量をケーシ
ング３０外に放出するためにモータファンを２箇所に配
置する必要があってコストが高くなる。加えて、ケーシ
ング３０内で空気の対流が起こりやすく、放熱効率が低
くなる。However, in the above-described cooling structure, it is necessary to dispose the motor fans at two locations in order to release the heat generated by the servo amplifier 31 to the outside of the casing 30, which increases the cost. In addition, convection of air is likely to occur in the casing 30, and the heat radiation efficiency is reduced.
【０００６】そこで、本発明の課題は、電動射出成形機
のドライバの冷却構造の改善、すなわち放熱効率を上げ
ると共に、モータファンの設置台数を減らすことができ
るようにすることにある。It is therefore an object of the present invention to improve the cooling structure of the driver of the electric injection molding machine, that is, to increase the heat radiation efficiency and to reduce the number of motor fans to be installed.
【０００７】[0007]
【課題を解決するための手段】本発明は、サーボモータ
を駆動源とする駆動装置を備え、前記サーボモータへの
電力供給をサーボアンプを通して行うようにした射出成
形機において、前記サーボアンプの放熱手段としてモー
タファンを備えたヒートシンクを前記サーボアンプの他
の部品とは隔絶した構造として組み付け、該ヒートシン
クは、空気取入れ口と空気排出口とを有してダクトを兼
ねるケーシングに収容し、前記モータファンにより前記
空気取入れ口から取り入れた空気が前記ヒートシンクで
熱交換を行なった後前記空気排出口から排出されるよう
な空気流通路を形成したことを特徴とする。According to the present invention, there is provided an injection molding machine having a driving device using a servomotor as a driving source, and supplying power to the servomotor through a servo amplifier. A heat sink having a motor fan as a means is assembled as a structure separated from other components of the servo amplifier, and the heat sink is housed in a casing having an air intake and an air exhaust and also serving as a duct, and An air flow passage is formed such that air taken in from the air inlet by a fan exchanges heat with the heat sink and then discharged from the air outlet.
【０００８】なお、前記モータファンよりも風下側に、
前記空気排出口に向かうように通風を規制するための風
向調整板を設けることが好ましい。In addition, on the leeward side of the motor fan,
It is preferable to provide a wind direction adjusting plate for restricting ventilation to the air discharge port.
【０００９】また、前記空気流通路を、前記ヒートシン
クを間にして取入れ側と排出側とに区画するための仕切
り板を前記ケーシング内に設けることが好ましい。It is preferable that a partition plate for partitioning the air flow passage into an intake side and a discharge side with the heat sink therebetween is provided in the casing.
【００１０】[0010]
【発明の実施の形態】図１，図２を参照して、射出成形
機本体下部の長手方向端部には、空気流通路を形成する
ためのケーシング１０が設けられている。サーボアンプ
１１は、壁板１２を利用して射出成形機本体側に設置さ
れるが、サーボアンプ１１と一体に取り付けられた防
塵、防水構造のヒートシンク２０が空気流通路に位置す
るように配置されている。ヒートシンク２０は、複数板
の放熱板を定間隔をおいて互いに平行になるように組み
合わせたもので良く、サーボアンプ１１の発熱を空気流
通路側に放出する。ヒートシンク２０には、ここではそ
の風下側に複数台の防塵、防水構造のモータファン１６
が組み付けられている。勿論、モータファン１６はヒー
トシンク２０の風上側に配置されても良い。DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 and 2, a casing 10 for forming an air flow passage is provided at a longitudinal end of a lower portion of an injection molding machine main body. The servo amplifier 11 is installed on the side of the injection molding machine using the wall plate 12, and is disposed so that a dust-proof and waterproof heat sink 20 attached integrally with the servo amplifier 11 is located in the air flow passage. ing. The heat sink 20 may be a combination of a plurality of heat radiating plates arranged at regular intervals so as to be parallel to each other, and discharges the heat generated by the servo amplifier 11 to the air flow path side. Here, a plurality of dustproof and waterproof motor fans 16 are provided on the leeward side of the heat sink 20.
Is assembled. Of course, the motor fan 16 may be arranged on the windward side of the heat sink 20.
【００１１】ケーシング１０の風上側には空気取入れ口
１３が、風下側には空気排出口１４がそれぞれ設けられ
ている。ヒートシンク２０とケーシング１０との間には
仕切り板１７が設けられて風上側と風下側とを完全に仕
切っている。このようにして、図１に矢印で示すよう
に、空気取入れ口１３から取り入れられた空気はすべて
ヒートシンク２０を通過して熱交換した後、モータファ
ン１６により空気排出口１４から排出されるという空気
流通路が形成される。An air intake 13 is provided on the leeward side of the casing 10, and an air outlet 14 is provided on the leeward side. A partition plate 17 is provided between the heat sink 20 and the casing 10 to completely separate the leeward side and the leeward side. In this way, as shown by the arrow in FIG. 1, all the air taken in from the air intake 13 passes through the heat sink 20 and exchanges heat, and is then exhausted from the air exhaust 14 by the motor fan 16. A flow passage is formed.
【００１２】特に、モータファン１６よりも風下側の空
気流通路には、風向調整板２１を設けて、モータファン
１６からの通風が効率良く空気排出口１４に導かれるよ
うにしている。In particular, an airflow direction adjustment plate 21 is provided in the airflow passage on the leeward side of the motor fan 16 so that the airflow from the motor fan 16 is efficiently guided to the air discharge port 14.
【００１３】[0013]
【発明の効果】以上説明したきたように、本発明による
ドライバの冷却構造は、サーボアンプのヒートシンク及
びモータファンを防塵、防水構造として外気が流通可能
とし、ケーシング内の空気流通路には仕切り板を設けて
ケーシング内の対流を防ぎ、更に風向調整板を設けてモ
ータファンからの熱交換後の通風を効率良く空気排出口
へ導くようにしている。このことにより、放熱効率の向
上を図ることができ、モータファンの設置箇所は１箇所
で良いのでコストダウンを図ることができると共に、省
エネルギー化を図ることができる。As described above, in the driver cooling structure according to the present invention, the heat sink and the motor fan of the servo amplifier are made dustproof and waterproof so that the outside air can flow therethrough, and the partition plate is provided in the air flow passage in the casing. Is provided to prevent convection in the casing, and a wind direction adjusting plate is further provided to efficiently guide the ventilation after heat exchange from the motor fan to the air outlet. As a result, the heat radiation efficiency can be improved, and the motor fan can be installed in only one place, so that the cost can be reduced and the energy can be saved.
【図１】本発明の冷却構造を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a cooling structure of the present invention.
【図２】図１の冷却構造を矢印Ａ方向から見た外面図で
ある。FIG. 2 is an external view of the cooling structure of FIG. 1 as viewed from the direction of arrow A.
【図３】従来の冷却構造を示す縦断面図である。FIG. 3 is a longitudinal sectional view showing a conventional cooling structure.
１０，３０ ケーシング １１，３１ サーボアンプ １２，３２ 壁板 １３，３３ 空気取入れ口 １４，３４ 空気排出口 １６，３５，３６ モータファン １７ 仕切り板 ２０ ヒートシンク ２１ 風向調整板 ４０ フィルタ 10, 30 Casing 11, 31 Servo amplifier 12, 32 Wall plate 13, 33 Air inlet 14, 34 Air outlet 16, 35, 36 Motor fan 17 Partition plate 20 Heat sink 21 Wind direction adjusting plate 40 Filter
Claims (3)
備え、前記サーボモータへの電力供給をサーボアンプを
通して行うようにした射出成形機において、前記サーボ
アンプの放熱手段としてモータファンを備えたヒートシ
ンクを前記サーボアンプの他の部品とは隔絶した構造と
して組み付け、該ヒートシンクは、空気取入れ口と空気
排出口とを有してダクトを兼ねるケーシングに収容し、
前記モータファンにより前記空気取入れ口から取り入れ
た空気が前記ヒートシンクで熱交換を行なった後前記空
気排出口から排出されるような空気流通路を形成したこ
とを特徴とする電動射出成形機のドライバの冷却構造。1. An injection molding machine comprising a driving device using a servo motor as a driving source, and supplying power to the servo motor through a servo amplifier. A heat sink having a motor fan as a heat radiating means of the servo amplifier. Is assembled as a structure separated from the other parts of the servo amplifier, the heat sink is housed in a casing having an air intake and an air exhaust and also serving as a duct,
A driver for an electric injection molding machine, wherein an air flow passage is formed such that air taken in from the air intake by the motor fan is subjected to heat exchange by the heat sink and then discharged from the air discharge opening. Cooling structure.
空気排出口に向かうように通風を規制するための風向調
整板を設けたことを特徴とする請求項１記載の電動射出
成形機のドライバの冷却構造。2. The driver for an electric injection molding machine according to claim 1, further comprising a wind direction adjusting plate provided on a leeward side of the motor fan to regulate ventilation toward the air discharge port. Cooling structure.
間にして取入れ側と排出側とに区画するための仕切り板
を前記ケーシング内に設けたことを特徴とする請求項１
あるいは２記載の電動射出成形機のドライバの冷却構
造。3. The casing according to claim 1, wherein a partition plate for dividing the air flow passage into an intake side and an exhaust side with the heat sink therebetween is provided in the casing.
Alternatively, the cooling structure of the driver of the electric injection molding machine according to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8070378A JP3023764B2 (en) | 1996-03-26 | 1996-03-26 | Cooling structure of driver for electric injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8070378A JP3023764B2 (en) | 1996-03-26 | 1996-03-26 | Cooling structure of driver for electric injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09254214A JPH09254214A (en) | 1997-09-30 |
| JP3023764B2 true JP3023764B2 (en) | 2000-03-21 |
Family
ID=13429728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8070378A Expired - Fee Related JP3023764B2 (en) | 1996-03-26 | 1996-03-26 | Cooling structure of driver for electric injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3023764B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6700141B2 (en) * | 2016-08-26 | 2020-05-27 | 住友重機械工業株式会社 | Injection device |
| JP7043318B2 (en) * | 2018-03-29 | 2022-03-29 | 住友重機械工業株式会社 | Injection molding machine |
| JP7034801B2 (en) * | 2018-03-29 | 2022-03-14 | 住友重機械工業株式会社 | Injection molding machine |
| JP7134819B2 (en) | 2018-10-03 | 2022-09-12 | 川崎重工業株式会社 | Control device |
| JP7305403B2 (en) * | 2019-03-29 | 2023-07-10 | 住友重機械工業株式会社 | Injection molding machine, control panel and cooling unit |
| JP7431644B2 (en) * | 2020-03-31 | 2024-02-15 | 住友重機械工業株式会社 | Injection molding machine and control panel |
-
1996
- 1996-03-26 JP JP8070378A patent/JP3023764B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09254214A (en) | 1997-09-30 |
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