JP3513703B2 - Automatic lubrication system for injection molding machines - Google Patents
Automatic lubrication system for injection molding machinesInfo
- Publication number
- JP3513703B2 JP3513703B2 JP2000324819A JP2000324819A JP3513703B2 JP 3513703 B2 JP3513703 B2 JP 3513703B2 JP 2000324819 A JP2000324819 A JP 2000324819A JP 2000324819 A JP2000324819 A JP 2000324819A JP 3513703 B2 JP3513703 B2 JP 3513703B2
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- valve
- distribution valve
- injection molding
- molding machine
- 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
- B29C45/83—Lubricating means
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は射出成形機の各回転
部・摺動部等の給油箇所に潤滑油を自動的に供給する装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically supplying lubricating oil to oil-filling points such as rotating parts and sliding parts of an injection molding machine.
【０００２】[0002]
【従来技術】一般に、合成樹脂製品の成型には射出成形
機が用いられるが、この射出成形機は１台で大体４０〜
５０箇所に及ぶ回転部や摺動部の給油箇所があり、各給
油箇所に必要に応じて潤滑油が供給される。この潤滑油
の供給方法は予め設定された量の潤滑油が所定の時間経
過後または所定の射出回数ごとに潤滑油ポンプから各回
転部や摺動部に自動的に供給されるようになっている。2. Description of the Related Art Generally, an injection molding machine is used to mold a synthetic resin product.
There are 50 rotating parts and sliding parts that are lubricated, and lubricating oil is supplied to each lubricated part as needed. This method of supplying lubricating oil is such that a preset amount of lubricating oil is automatically supplied from the lubricating oil pump to each rotating part and sliding part after a predetermined time has elapsed or every predetermined number of injections. There is.
【０００３】従来の潤滑油供給装置１Ａは図７に示すよ
うに潤滑油を貯蔵するタンク４と、この潤滑油を圧送す
る潤滑油ポンプ２と、前記タンク４に一方の開口端を配
置し他方の開口端を潤滑油ポンプ２の吸引口に接続され
た配管１８と、前記潤滑油ポンプ２の吐出口に配管１２
を介して接続口の１つが接続されている切替弁２５と、
切替弁２５のもう１つの接続口に配管２８を介して接続
されている潤滑油分配弁２６と、この潤滑油分配弁２６
から分岐し射出成形機の各給油箇所（図示せず）に接続
された複数の分岐管２６ａと、配管１２から分岐接続さ
れた配管１９と、この配管１９に設けられた圧力設定弁
２０と、この潤滑油分配弁２６に取り付けられた圧力セ
ンサー２７と、潤滑油ポンプ２を駆動する電動機３と、
これらの機器からなる潤滑油分配装置を制御する制御装
置９等から構成されており、潤滑油分配弁２６には一般
に特開昭５０−３１２６２号に開示されているような進
行型分配弁または実開昭５６−９１９９１号に開示され
ているような定量弁が１つの分岐管に複数接続された並
列型分配弁が使用されている。As shown in FIG. 7, a conventional lubricating oil supply apparatus 1A has a tank 4 for storing lubricating oil, a lubricating oil pump 2 for pumping the lubricating oil, and one opening end of the tank 4 for disposing the other. A pipe 18 whose open end is connected to the suction port of the lubricating oil pump 2, and a pipe 12 which is connected to the discharge port of the lubricating oil pump 2.
A switching valve 25 to which one of the connection ports is connected via
A lubricating oil distribution valve 26 connected to another connection port of the switching valve 25 via a pipe 28, and the lubricating oil distribution valve 26.
A plurality of branch pipes 26a branched from each pipe and connected to respective oil supply points (not shown) of the injection molding machine, a pipe 19 branched from the pipe 12, and a pressure setting valve 20 provided in the pipe 19. A pressure sensor 27 attached to the lubricating oil distribution valve 26, an electric motor 3 for driving the lubricating oil pump 2,
The lubricating oil distributing valve 26 is composed of a control device 9 for controlling a lubricating oil distributing device including these devices, and the lubricating oil distributing valve 26 is generally a progressive distributing valve or an actual distributing valve as disclosed in JP-A-50-31262. A parallel type distribution valve is used in which a plurality of metering valves such as those disclosed in Japanese Utility Model Laid-Open No. 56-91991 are connected to one branch pipe.
【０００４】また、この潤滑油供給装置１Ａは射出成形
機の所定の射出回数ごとに射出成形機の制御装置（図示
せず）から送られてくる信号によって、電動機３が一定
の時間起動され、潤滑油ポンプ２が駆動される。これに
よって、潤滑油タンク４から潤滑油が潤滑油ポンプ２に
吸引され、昇圧された後、切替弁２５を通り潤滑油分配
弁２６に圧送され、この潤滑油分配弁２６から一定量の
潤滑油が射出成形機の各給油箇所にそれぞれ分配され
る。Further, the lubricating oil supply device 1A activates the electric motor 3 for a certain period of time in response to a signal sent from a control device (not shown) of the injection molding machine every predetermined number of injections of the injection molding machine. The lubricating oil pump 2 is driven. As a result, the lubricating oil is sucked from the lubricating oil tank 4 to the lubricating oil pump 2 and the pressure thereof is increased. Then, the lubricating oil is pumped through the switching valve 25 to the lubricating oil distribution valve 26. Is distributed to each refueling point of the injection molding machine.
【０００５】その際、圧力センサー２７によって潤滑油
分配弁２６に圧送されてきた潤滑油の圧力が検知され、
この圧力が所定の圧力に達していない場合は潤滑油分配
弁２６が正常に作動しないため、警報等がなされるなど
の処理がなされている。また、潤滑油ポンプ２から吐出
される潤滑油は、圧力設定弁２０によって所定の圧力に
減圧された後、一部は切替弁に供給され、その他は潤滑
油タンク４に放出されるようになっている。At this time, the pressure sensor 27 detects the pressure of the lubricating oil sent to the lubricating oil distribution valve 26,
If this pressure does not reach the predetermined pressure, the lubricating oil distribution valve 26 does not operate normally, so processing such as issuing an alarm is performed. In addition, the lubricating oil discharged from the lubricating oil pump 2 is reduced to a predetermined pressure by the pressure setting valve 20, part of which is supplied to the switching valve, and the other is discharged to the lubricating oil tank 4. ing.
【０００６】従来の射出成形機では、さほどの高速射出
が要求されておらず、潤滑油供給に対する信頼度の要求
が、さほど高くないため並列型分配弁が主に使用されて
いる。In the conventional injection molding machine, parallel injection valves are mainly used because high speed injection is not required and the reliability requirement for lubricating oil supply is not so high.
【０００７】[0007]
【発明が解決しようとする課題】ところが、最近の高速
射出化のニーズに対応するために電動式射出成形機で
は、ボールネジ部は、極めて高負荷・高速度・高頻度で
作動され、従来以上に適切な間隔で適切な量の潤滑油を
供給する必要性が高くなっている。一方、ボールネジ等
以外の給油箇所は高速射出化のニーズに対応しても給油
間隔、給油量等、従来と比べさほど正確な給油は必要と
されない。このように、各潤滑油供給部によって必要と
される潤滑油供給量、給油時間等の信頼度の差が従来と
比べ顕著になっており、従来のような一種類の並列型分
配弁のみでは対応できない。However, in order to meet the recent needs for high-speed injection, in the electric injection molding machine, the ball screw portion is operated at extremely high load, high speed, and high frequency. There is a growing need to supply the right amount of lubricant at the right intervals. On the other hand, lubrication points other than the ball screw etc. do not need to be lubricated more accurately than the conventional ones, such as the lubrication interval and the lubrication amount, even if the needs for high-speed injection are met. In this way, the difference in the reliability of the lubricating oil supply amount and lubrication time, etc. required by each lubricating oil supply part is more remarkable than in the past, and only one type of parallel type distribution valve like the conventional one is available. I can not cope.
【０００８】即ち、並列型分配弁は構造が簡単で、容積
が小さく、潤滑油吐出口数の増減が容易に行え、価格的
に安価であるが、複数の潤滑油吐出口から給油がほぼ同
時に行われ、どれか一つ又は複数の潤滑油吐出口に接続
された各給油箇所に詰まりが生じた場合にも、その他の
部分に潤滑油の供給動作は行われるため、給油がされな
い部分があっても検出されず、また、潤滑油の粘度によ
っては潤滑油ポンプから並列型分配弁にいたる配管抵抗
が高くなるため圧力低下が生じ、潤滑油ポンプ吐出口か
ら離れた位置の定量弁が確実に作動しない場合があるな
どの問題点があり、特に正確な潤滑油の供給が必要な箇
所には使用できない問題点がある。That is, the parallel type distribution valve has a simple structure, a small volume, can easily increase and decrease the number of lubricating oil discharge ports, and is inexpensive in price. However, the lubricating oil can be supplied from a plurality of lubricating oil discharge ports almost at the same time. Even if each lubrication point connected to any one or more lubrication oil discharge ports is blocked, the lubrication oil is supplied to the other parts, and therefore some parts may not be lubricated. Is not detected, and depending on the viscosity of the lubricating oil, the piping resistance from the lubricating oil pump to the parallel distribution valve increases, causing a pressure drop, and the metering valve at a position away from the lubricating oil pump discharge port operates reliably. There is a problem that it may not be performed, and there is a problem that it cannot be used especially in a place where an accurate supply of lubricating oil is required.
【０００９】一方、進行型分配弁は給油が順次行われる
ため、給油の正確性が高いが、この分配弁の機構が複雑
であり容積が大きく、また価格的に高価であるため、多
数の給油箇所がある射出成形機の潤滑油供給装置への適
用が難しい問題点や小形射出成形機の潤滑油供給装置に
は適用が難しい等の問題点がある。On the other hand, since the progressive distribution valve is refueled sequentially, the accuracy of refueling is high. However, since the mechanism of this distribution valve is complicated, the volume is large, and the price is expensive, many refueling are performed. There are problems that it is difficult to apply to a lubricating oil supply device of an injection molding machine that has some parts and that it is difficult to apply to a lubricating oil supply device of a small injection molding machine.
【００１０】そこで、本発明は前記従来の潤滑油供給装
置の問題点を解決して、正確な給油の必要な部分には適
切な給油間隔で適切な量の潤滑油が供給でき、その他の
部分の給油は適度に行える安価で、容積が小さく、給油
口数の増減に容易に対応できる射出成形機用潤滑油供給
装置を提供することを目的とする。Therefore, the present invention solves the above-mentioned problems of the conventional lubricating oil supply device, and can supply an appropriate amount of lubricating oil at an appropriate lubrication interval to a portion requiring accurate lubrication, and other portions. It is an object of the present invention to provide a lubricating oil supply device for an injection molding machine, which can be appropriately refueled, is inexpensive, has a small volume, and can easily cope with an increase or decrease in the number of oil supply ports.
【００１１】[0011]
【課題を解決するための手段】本発明は、上記目的を達
成するために、請求項１に記載の射出成形機用自動給油
装置１は、潤滑油を貯蔵するタンク４と、このタンク４
に吸引側を接続した潤滑油ポンプ２と、この潤滑油ポン
プ２を駆動する電動機３と、この電動機３を制御する制
御装置９と、前記潤滑油ポンプ２の吐出側に接続された
切替弁５とを有し、この切替弁５により複数の給油箇所
に潤滑油を分配するための少なくとも１つの進行型潤滑
油分配弁６と、少なくとも１つの並列型潤滑油分配弁７
が選択可能に接続されていることを特徴とする。In order to achieve the above object, the present invention is directed to an automatic oil supply apparatus 1 for an injection molding machine as set forth in claim 1, wherein a tank 4 for storing lubricating oil and a tank 4 for storing the lubricating oil are provided.
A lubricating oil pump 2 connected to the suction side, an electric motor 3 for driving the lubricating oil pump 2, a controller 9 for controlling the electric motor 3, and a switching valve 5 connected to the discharge side of the lubricating oil pump 2. And at least one progressive lubricating oil distribution valve 6 for distributing lubricating oil to a plurality of lubrication points by the switching valve 5, and at least one parallel lubricating oil distribution valve 7
Are connected in a selectable manner.
【００１２】この射出成形機用潤滑油供給装置１では、
ボールネジ等の正確な給油が必要な箇所には進行型潤滑
油分配弁６によって適切な給油間隔で適正な量の潤滑油
の供給が行え、その他の部分には並列型潤滑油分配弁７
によって潤滑油の供給が行える。また、進行型潤滑油分
配弁６の大きさは正確な潤滑油供給が必要な箇所に潤滑
油を供給するための必要最小限のサイズにすることがで
き、価格を必要最小限にすることができる。In this injection molding machine lubricating oil supply apparatus 1,
A progressive lubricating oil distribution valve 6 can be used to supply an appropriate amount of lubricating oil at an appropriate lubrication interval to a location where accurate lubrication is required, such as a ball screw, and a parallel lubricating oil distribution valve 7 to other portions.
The lubricating oil can be supplied by. Further, the size of the progressive lubricating oil distribution valve 6 can be set to the minimum necessary size for supplying the lubricating oil to the location where the accurate lubricating oil supply is required, and the cost can be minimized. it can.
【００１３】請求項２に記載の射出成形機用潤滑油供給
装置１は、請求項１に記載の潤滑油供給装置において、
進行型潤滑油分配弁６の潤滑油吐出口５９〜６２のうち
最後に潤滑油が吐出される吐出口６１と、並列型潤滑油
分配弁７の潤滑油供給口２３から最も離れた位置にある
接続口２２とを逆止弁１１を介して配管１４によって連
通したことを特徴とする。A lubricating oil supply device 1 for an injection molding machine according to a second aspect is the lubricating oil supply device according to the first aspect,
It is located farthest from the lubricating oil discharge ports 59 to 62 of the progressive lubricating oil distribution valve 6 from which the lubricating oil is discharged last, and the lubricating oil supply port 23 of the parallel type lubricating oil distribution valve 7. The connection port 22 is communicated with the pipe 14 through the check valve 11.
【００１４】この射出成形機用潤滑油供給装置１では、
進行型潤滑油分配弁６の潤滑油供給動作が１循する際の
最後に吐出される潤滑油が並列型潤滑油分配弁７の潤滑
油供給口２３から最も離れた位置にある接続口２２に供
給されることにより、前工程で圧力解放され圧力が低下
している並列型潤滑油分配弁７及び切替弁５と並列型潤
滑油分配弁７とを結ぶ配管１５等の部分に残留する潤滑
油が予圧されるため、並列型潤滑油分配弁７の作動が短
期間に行われ、また、並列型潤滑油分配弁７を構成する
各定量弁の位置による圧力差が少なくなるため作動不良
が解消される。In this injection molding machine lubricating oil supply apparatus 1,
The lubricating oil discharged at the end of one circulation of the lubricating oil supply valve 6 of the progressive lubricating oil distribution valve 6 is connected to the connection port 22 located farthest from the lubricating oil supply port 23 of the parallel lubricating oil distribution valve 7. When supplied, the lubricating oil remaining in a portion such as the parallel lubricating oil distribution valve 7 whose pressure is released in the previous step and the pressure is reduced, and the pipe 15 connecting the switching valve 5 and the parallel lubricating oil distribution valve 7 and the like. Is pre-loaded, the parallel lubricating oil distribution valve 7 is actuated in a short period of time, and the pressure difference due to the position of each metering valve forming the parallel lubricating oil distribution valve 7 is reduced, thus eliminating malfunction. To be done.
【００１５】請求項３に記載の射出成形機用潤滑油供給
装置１は、請求項２に記載の潤滑油供給装置において、
前記接続口２２に圧力センサー１０が取り付けられたこ
とを特徴とする。A lubricating oil supply device 1 for an injection molding machine according to a third aspect is the lubricating oil supply device according to the second aspect.
The pressure sensor 10 is attached to the connection port 22.
【００１６】この射出成形機用潤滑油供給装置１では、
前記接続口２２に圧力センサー１０が取り付けられてい
るため、進行型潤滑油分配弁６の全ての潤滑油吐出口か
ら潤滑油が吐出されたか否の確認と、並列型潤滑油分配
弁７の潤滑油ポンプ２から最も離れた位置にある定量弁
７０が所定の圧力によって作動されているか否かの確認
が１つのセンサー１０で確認できる。In this injection molding machine lubricating oil supply apparatus 1,
Since the pressure sensor 10 is attached to the connection port 22, it is confirmed whether the lubricating oil is discharged from all the lubricating oil discharge ports of the progressive lubricating oil distribution valve 6 and the lubrication of the parallel lubricating oil distribution valve 7 is performed. One sensor 10 can confirm whether or not the metering valve 70 located farthest from the oil pump 2 is operated by a predetermined pressure.
【００１７】[0017]
【発明の実施の形態】本発明の実施の形態を添付図に基
づき以下に説明する。図１に示される本発明の潤滑油供
給装置１は、潤滑油ポンプ２、電動機３、潤滑油タンク
４、切替弁５、進行型潤滑油分配弁６、並列型潤滑油分
配弁７、圧抜き弁８、制御装置９、センサー１０、逆止
弁１１、圧力設定弁２０、各機器を連通する配管１２〜
１９より構成されている。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. The lubricating oil supply apparatus 1 of the present invention shown in FIG. 1 includes a lubricating oil pump 2, an electric motor 3, a lubricating oil tank 4, a switching valve 5, a progressive lubricating oil distribution valve 6, a parallel lubricating oil distribution valve 7, and a pressure relief. Valve 8, control device 9, sensor 10, check valve 11, pressure setting valve 20, pipe 12 for communicating each device
It is composed of 19.
【００１８】潤滑油ポンプ２は、電動機３に連結されて
おり、その吸引口に接続された配管１８を介して潤滑油
タンク４内に貯蔵された潤滑油を吸引するようになって
いる。The lubricating oil pump 2 is connected to the electric motor 3 and sucks the lubricating oil stored in the lubricating oil tank 4 through a pipe 18 connected to its suction port.
【００１９】この潤滑油ポンプ２の吐出口は配管１２を
介して切替弁５の一つの接続口（Ｐポート）に接続され
ており、この切替弁５は、制御装置９からの電気によっ
て励磁するソレノイド２１とバネで切り替え作動される
４ポート２位置電磁切換弁であり、常時はバネにより図
示の右側位置に切換られており、前記配管１２と後述の
配管１３が連通し、ソレノイド２１が励磁されると、左
側の位置に切り替わり、配管１２と後述の配管１５が連
通されるようになっている。また、配管１２には配管１
９が分岐接続され、この配管１９は圧力設定弁２０を介
して潤滑油タンク４に連通している。The discharge port of the lubricating oil pump 2 is connected to one connection port (P port) of the switching valve 5 via a pipe 12, and the switching valve 5 is excited by electricity from a control device 9. It is a 4-port 2-position electromagnetic switching valve that is switched and operated by a solenoid 21 and a spring. It is normally switched to the right position in the drawing by a spring, the pipe 12 communicates with a pipe 13 described later, and the solenoid 21 is excited. Then, the position is switched to the left side, and the pipe 12 and the pipe 15 described later are connected to each other. In addition, the pipe 12 has a pipe 1
9 is branched and connected, and this pipe 19 communicates with the lubricating oil tank 4 via a pressure setting valve 20.
【００２０】切替弁５の他の接続口の１つに配管１３の
一方の開口端が接続され、配管１３の他方の開口端は進
行型潤滑油分配弁６の潤滑油の流入口４９に接続されて
いる。One opening end of the pipe 13 is connected to one of the other connection ports of the switching valve 5, and the other opening end of the pipe 13 is connected to the lubricating oil inlet 49 of the progressive lubricating oil distribution valve 6. Has been done.
【００２１】この進行型潤滑油分配弁６は図３に示すよ
うに、潤滑油の流入口４９と複数の吐出口５９、６０、
６１、６２を有した弁本体６ａに、複数のシリンダａ
１、ａ２を直列に連結した第１のシリンダ列と複数のシ
リンダｂ１、ｂ２を直列に連結した第２のシリンダ列と
を縦方向に並行に配列し、これらシリンダ列内にプラン
ジャA、Bをそれぞれ内装する構造になっており、これら
シリンダ列内に前記流入口４９から供給される潤滑油が
それぞれのプランジャによって順次潤滑油吐出口６２、
６０、５９、６１から吐出される構造になっている。As shown in FIG. 3, the progressive lubricating oil distribution valve 6 includes a lubricating oil inlet 49 and a plurality of discharge ports 59, 60.
A plurality of cylinders a are attached to the valve body 6a having 61 and 62.
A first cylinder row in which 1 and a2 are connected in series and a second cylinder row in which a plurality of cylinders b1 and b2 are connected in series are arranged in parallel in the vertical direction, and plungers A and B are arranged in these cylinder rows. Each of the cylinders has a structure in which the lubricating oil supplied from the inflow port 49 into these cylinder rows is sequentially lubricated by the respective plungers.
The structure is such that the ink is discharged from 60, 59, 61.
【００２２】進行型潤滑油分配弁６から潤滑油が吐出さ
れる潤滑油吐出口５９，６０，６２は、それぞれ、射出
成形機の型締め軸、突き出し軸、射出軸の各ボールネジ
部の給油口に接続されており、最後に潤滑油が吐出され
る潤滑油吐出口６１は、配管１４および逆止弁１１を介
して並列型潤滑油分配弁７の接続口２２に接続されてい
る。この接続口２２は潤滑油供給口２３から最も離れた
位置に配置されている。Lubricating oil discharge ports 59, 60 and 62 from which the lubricating oil is discharged from the progressive type lubricating oil distribution valve 6 are respectively oil supply ports of ball screw parts of the mold clamping shaft, the ejection shaft and the injection shaft of the injection molding machine. The lubricating oil discharge port 61 from which the lubricating oil is finally discharged is connected to the connection port 22 of the parallel type lubricating oil distribution valve 7 via the pipe 14 and the check valve 11. The connection port 22 is arranged at a position farthest from the lubricating oil supply port 23.
【００２３】また、前記切替弁５の残りの接続口には配
管１５を介して配管１６に連通され、配管１６の一端は
前記並列型潤滑油分配弁７の潤滑油供給口２３に連通さ
れ、他端は圧力逃がし弁８に連通され、この逃がし弁８
は配管１７を介して潤滑油タンク４内に連通されてい
る。The remaining connection port of the switching valve 5 is connected to a pipe 16 via a pipe 15, and one end of the pipe 16 is connected to a lubricating oil supply port 23 of the parallel type lubricating oil distribution valve 7. The other end is communicated with the pressure relief valve 8 and this relief valve 8
Is communicated with the lubricating oil tank 4 via a pipe 17.
【００２４】前記並列型潤滑油分配弁７は、図４（ａ）
に示すように、１つの潤滑油の流入口６９を有するシリ
ンダよりなる弁本体６３と、この弁本体６３に上下可動
に内装された中空のプランジャ６４と、このプランジャ
６４を下方に付勢する付勢バネ６５と、この付勢バネ６
５を圧縮するための中空の止めネジ６６と、前記プラン
ジャ６４の内側に挿入された計量パイプ６７と、前記流
入口６９と弁本体６３を仕切るフロート弁６８等を主体
に構成された定量弁７０が、図５に示すように複数並列
に分岐管８０に接続されてなるものである。The parallel type lubricating oil distribution valve 7 is shown in FIG.
As shown in FIG. 6, a valve body 63 composed of a cylinder having one lubricating oil inlet 69, a hollow plunger 64 vertically movably mounted in the valve body 63, and a biasing member for biasing the plunger 64 downward. Bias spring 65 and this bias spring 6
A hollow set screw 66 for compressing 5, a metering pipe 67 inserted inside the plunger 64, a metering valve 70 mainly composed of a float valve 68 for partitioning the inlet 69 and the valve body 63. However, a plurality of them are connected to the branch pipe 80 in parallel as shown in FIG.
【００２５】前記止めネジ６６は前記弁本体６３に螺着
され、この止めネジ６６のネジ部７１の螺入量によって
前記プランジャ６４の下方への付勢力が調整可能になっ
ており、この止めネジ６６にはシール用のパッキン７２
が装着されており、上記止めネジ６６の螺着部７３から
の潤滑油の外部への漏れを防止している。The set screw 66 is screwed to the valve body 63, and the downward biasing force of the plunger 64 can be adjusted by the screwing amount of the screw portion 71 of the set screw 66. 66 is a seal packing 72
Is attached to prevent the lubricating oil from leaking to the outside from the threaded portion 73 of the set screw 66.
【００２６】また、前記計量パイプ６７の一端は前記止
めネジ６６に螺合されており、この螺合部より下方に計
量パイプ６７の内外を連通する穴７４が複数あけられて
おり、他端には周方向に沿って複数の穴７６が開けられ
た止めリング７５が装着されており、前記プランジャ６
４が付勢ばね６５によって下方に付勢され、前記止めリ
ング７５に当接することによって、前記複数の穴７６は
プランジャ６４によって塞がれるようになっている。Further, one end of the measuring pipe 67 is screwed into the set screw 66, and a plurality of holes 74 for communicating the inside and outside of the measuring pipe 67 are formed below the screwing portion, and the other end is formed. A stopper ring 75 having a plurality of holes 76 formed along the circumferential direction is attached to the plunger 6 and
4 is urged downward by an urging spring 65 and comes into contact with the stop ring 75, whereby the plurality of holes 76 are closed by the plunger 64.
【００２７】前記フロート弁６８は、弁本体６３のシリ
ンダ出口側の潤滑油の背圧によって前記流入口６９の弁
座部７７に押圧されており、前記潤滑油ポンプ３が作動
し、弁本体６３の流入口６９に加圧された潤滑油が供給
されると、この圧力と前記背圧の差圧によって押し上げ
られ、潤滑油が前記弁本体６３の内壁と計量パイプ６７
の外壁との空間１００に潤滑油が供給される構造になっ
ている。The float valve 68 is pressed against the valve seat portion 77 of the inflow port 69 by the back pressure of the lubricating oil on the cylinder outlet side of the valve body 63, the lubricating oil pump 3 operates, and the valve body 63. When the pressurized lubricating oil is supplied to the inflow port 69 of the above, the lubricating oil is pushed up by the pressure difference between this pressure and the back pressure, and the lubricating oil is fed to the inner wall of the valve body 63 and the measuring pipe 67.
The lubricating oil is supplied to the space 100 with the outer wall of the.
【００２８】また、電動機３、切替弁５のソレノイド２
１、圧抜き弁８のソレノイド２４は制御装置９の出力端
（図示せず）に電気的に接続されおり、センサー１０の
出力端は制御装置９の入力端（図示せず）に接続されて
いる。また、制御装置９は射出成形機の制御装置（図示
せず）と電気的に接続されており、電気信号の送受信が
なされるようになっている。Further, the motor 2 and the solenoid 2 of the switching valve 5
1. The solenoid 24 of the pressure relief valve 8 is electrically connected to the output end (not shown) of the control device 9, and the output end of the sensor 10 is connected to the input end (not shown) of the control device 9. There is. Further, the control device 9 is electrically connected to a control device (not shown) of the injection molding machine so that an electric signal can be transmitted and received.
【００２９】この潤滑油供給装置１の作用を図１〜図５
に基づいて説明すると、射出成形機の制御装置（図示せ
ず）から予め定められた射出回数ごとに信号が制御装置
９に送られ（図２のステップＳ１）、この信号に基づき
電動機３が起動され、制御装置９内のタイマーＴ１（図
示せず）が作動される（図２のステップＳ２）。この電
動機３の起動によって潤滑油ポンプ２が起動され、潤滑
油タンク４に貯蔵されている潤滑油が配管１８を通り潤
滑油ポンプ２に吸引される。The operation of the lubricating oil supply apparatus 1 will be described with reference to FIGS.
In the following description, the control device (not shown) of the injection molding machine sends a signal to the control device 9 for each predetermined number of injections (step S1 in FIG. 2), and the electric motor 3 is started based on this signal. Then, the timer T1 (not shown) in the controller 9 is activated (step S2 in FIG. 2). The lubricating oil pump 2 is started by the activation of the electric motor 3, and the lubricating oil stored in the lubricating oil tank 4 is sucked by the lubricating oil pump 2 through the pipe 18.
【００３０】潤滑油ポンプ２に吸引された潤滑油は所定
の圧力まで昇圧され潤滑油ポンプ２の吐出側の配管１２
を通り切替弁５に圧送される。このとき、潤滑油ポンプ
２の始動時は進行型潤滑油分配弁６と配管１２、１３が
連通されるように切換弁５が図示の位置になっており、
潤滑油は進行型潤滑油分配弁６に供給される（図２のス
テップＳ３）。The lubricating oil sucked by the lubricating oil pump 2 is boosted to a predetermined pressure and the pipe 12 on the discharge side of the lubricating oil pump 2 is pressurized.
And is sent to the switching valve 5 under pressure. At this time, when the lubricating oil pump 2 is started, the switching valve 5 is at the position shown so that the progressive lubricating oil distribution valve 6 and the pipes 12 and 13 are communicated with each other.
The lubricating oil is supplied to the progressive lubricating oil distribution valve 6 (step S3 in FIG. 2).
【００３１】進行型潤滑油分配弁６に圧送された潤滑油
は前記図３に示されるように、潤滑油の流入口４９に供
給された潤滑油は中央の流路５０から流路５１を経てプ
ランジャＡの右側に圧送され、プランジャＡが左に移動
される。このとき、前工程でシリンダａ１に充填されて
いる潤滑油がプランジャＡによて押圧され流路５２、５
７を通じて潤滑油吐出口６２から吐出され給油箇所に供
給される（図３（ａ））。As shown in FIG. 3, the lubricating oil pressure-fed to the progressive lubricating oil distribution valve 6 is supplied to the lubricating oil inflow port 49 through the central flow passage 50 and the flow passage 51. The plunger A is pressure-fed to the right side, and the plunger A is moved to the left. At this time, the lubricating oil filled in the cylinder a1 in the previous step is pressed by the plunger A and the flow paths 52, 5
It is discharged from the lubricating oil discharge port 62 through 7 and is supplied to the oil supply location (FIG. 3A).
【００３２】プランジャＡが左端まで移動されると流路
５８と流路５０が連通されプランジャＢの右側に潤滑油
が圧送され、プランジャＢが左側に移動する。このと
き、前工程でシリンダｂ１に充填されている潤滑油が流
路５３、５５を通じて潤滑油吐出口６０から吐出され給
油箇所に供給される（図３（ｂ））。When the plunger A is moved to the left end, the flow passage 58 and the flow passage 50 are communicated, the lubricating oil is pressure-fed to the right side of the plunger B, and the plunger B is moved to the left side. At this time, the lubricating oil filled in the cylinder b1 in the previous step is discharged from the lubricating oil discharge port 60 through the flow paths 53 and 55 and is supplied to the oil supply point (FIG. 3 (b)).
【００３３】プランジャＢが左端まで移動されると流路
５０と流路５２が連通されプランジャＡの左側に潤滑油
が圧送され、プランジャＡが右側に移動する。このと
き、前工程でシリンダａ２に充填されている潤滑油が押
圧され流路５１、５４を経て潤滑油吐出口５９から吐出
され給油箇所に供給される（図３（ｃ））。When the plunger B is moved to the left end, the flow passage 50 and the flow passage 52 are communicated, the lubricating oil is pressure-fed to the left side of the plunger A, and the plunger A is moved to the right side. At this time, the lubricating oil filled in the cylinder a2 in the previous step is pressed and discharged from the lubricating oil discharge port 59 through the flow paths 51 and 54 and supplied to the oil supply point (FIG. 3 (c)).
【００３４】同様にプランジャＡが右端まで移動される
と流路５０と流路５３が連通されプランジャＢの左側に
潤滑油が圧送され、プランジャＢが右側に移動する。こ
のとき、前工程でシリンダーｂ２に充填されている潤滑
油が押圧され流路５８、５６を経て潤滑油吐出口６１か
ら吐出され給油箇所に供給される。Similarly, when the plunger A is moved to the right end, the flow passage 50 and the flow passage 53 are communicated with each other, the lubricating oil is pumped to the left side of the plunger B, and the plunger B moves to the right side. At this time, the lubricating oil filled in the cylinder b2 in the previous step is pressed and discharged from the lubricating oil discharge port 61 through the flow paths 58 and 56 and supplied to the oil supply point.
【００３５】上記潤滑油吐出口５９、６０、６２からそ
れぞれ正確な潤滑油供給が必要な箇所である型締め軸、
突き出し軸、射出軸の各ボールネジ部に潤滑油が供給さ
れ、最後に潤滑油吐出口６１から吐出された潤滑油は逆
止弁１１を通り接続口２２に供給される。A mold clamping shaft, which is a portion where accurate supply of lubricating oil is required from each of the lubricating oil discharge ports 59, 60 and 62,
Lubricating oil is supplied to each ball screw portion of the protruding shaft and the injection shaft, and the lubricating oil finally discharged from the lubricating oil discharge port 61 is supplied to the connection port 22 through the check valve 11.
【００３６】接続口２２に圧送された潤滑油の圧力がセ
ンサー１０によって監視され（図２のステップＳ４）、
前記タイマーＴ１の作動時間内に検知されないか、検出
されても所定の圧力に達していない場合は警報装置（図
示せず）によって警報が出される（図２のステップＳ
５）。これによって、前記進行型潤滑油分配弁６の潤滑
油吐出口の全てから正常に潤滑油が吐出されている状態
にないことが作業者によって確認されると共に、次の射
出行程に移行する段階で、この前記警報の信号が射出成
形機側の制御装置に送信され、この射出成形機の制御装
置にとって射出成形機が自動的に停止される。The pressure of the lubricating oil sent to the connection port 22 is monitored by the sensor 10 (step S4 in FIG. 2),
If it is not detected within the operation time of the timer T1 or if it is detected but the predetermined pressure is not reached, an alarm is issued by an alarm device (not shown) (step S in FIG. 2).
5). As a result, the operator confirms that the lubricating oil is not normally discharged from all the lubricating oil discharge ports of the progressive lubricating oil distribution valve 6, and at the stage of shifting to the next injection stroke. The warning signal is transmitted to the control device on the injection molding machine side, and the injection molding machine is automatically stopped by the control device of the injection molding machine.
【００３７】また、接続口２２に供給される潤滑油の圧
力が所定圧力に達している場合には、圧力センサー１０
の信号によって、制御装置９から切替弁５のソレノイド
２１への電気が供給されると、ソレノイド２１が励磁さ
れて切替弁５が左側位置に切り替えられる（図２のステ
ップＳ６）。これによって、潤滑油ポンプ２から圧送さ
れた潤滑油は配管１５及び分岐管８０を通って定量弁７
０の潤滑油の流入口６９に圧送される（図４（ａ））
（図２のステップＳ７）。When the pressure of the lubricating oil supplied to the connection port 22 has reached the predetermined pressure, the pressure sensor 10
When electricity is supplied from the control device 9 to the solenoid 21 of the switching valve 5 by the signal of, the solenoid 21 is excited and the switching valve 5 is switched to the left position (step S6 in FIG. 2). As a result, the lubricating oil pumped from the lubricating oil pump 2 passes through the pipe 15 and the branch pipe 80, and then the metering valve 7
0 is fed to the inflow port 69 of the lubricating oil (Fig. 4 (a)).
(Step S7 of FIG. 2).
【００３８】潤滑油の流入口６９から定量弁７０の内部
に圧送された潤滑油によってフロート弁６８が前記射出
成形機の各給油箇所の潤滑油の背圧に抗して計量パイプ
６７に当接するまで押し上げられ、プランジャ６４は付
勢バネ６５の付勢力に抗して止めネジ６６側に押し上げ
られる。The float valve 68 is brought into contact with the measuring pipe 67 against the back pressure of the lubricant oil at each oil supply point of the injection molding machine by the lubricant oil pressure-fed from the lubricant oil inlet 69 into the metering valve 70. The plunger 64 is pushed up to the set screw 66 side against the urging force of the urging spring 65.
【００３９】これによって、前工程でプランジャ６４と
止めネジ６６との空間１０１に充填されている潤滑油が
連通穴７４を通して吐出口７８から吐出され（図４
（ｂ））、射出成形機の各給油箇所に供給される。上記
複数の定量弁７０は同時に作動されるため各給油箇所に
はほぼ同時に潤滑油が供給される。As a result, the lubricating oil filled in the space 101 between the plunger 64 and the set screw 66 in the previous step is discharged from the discharge port 78 through the communication hole 74 (FIG. 4).
(B)), the oil is supplied to each lubrication point of the injection molding machine. Since the plurality of metering valves 70 are simultaneously operated, the lubricating oil is supplied to the respective oil supply points almost at the same time.
【００４０】なお、接続口２２、潤滑油流入口６９、配
管１５の潤滑油の圧力は進行型潤滑油分配弁６の潤滑油
吐出口６１から供給された潤滑油によって予圧されてお
り、並列型潤滑油分配弁７が作動されるために必要な潤
滑油圧力に容易に達するため、上記作動は容易に行われ
る。プランジャ６４がその上端を止めネジ６６に当接す
るまで押し上げられると、潤滑油の給油箇所への供給は
停止される（図４（ｃ））The pressure of the lubricating oil in the connection port 22, the lubricating oil inlet 69, and the pipe 15 is pre-pressurized by the lubricating oil supplied from the lubricating oil discharge port 61 of the progressive lubricating oil distribution valve 6, and the parallel type The above operation is easily performed because the lubricating oil pressure required for operating the lubricating oil distribution valve 7 is easily reached. When the plunger 64 is pushed up until its upper end abuts against the set screw 66, the supply of lubricating oil to the lubrication point is stopped (FIG. 4 (c)).
【００４１】並行型潤滑油分配弁７によって潤滑油が供
給された後、圧力センサー１０によって配管１５、１６
内の圧力上昇が確認されると（図２のステップＳ８）、
潤滑油ポンプ２を駆動する電動機３が停止され、切替弁
５のソレノイド２１が消磁され配管１３と配管１２が連
通した状態に戻される（図２のステップ９）。その際、
圧抜き弁８のソレノイド２４が励磁され配管１６と配管
１７が連通され配管１５、１６及び並列型潤滑油分配弁
７の定量弁７０の潤滑油流入口６９部の潤滑油圧力が解
放され（図２のステップＳ１０）、これらの部分の圧力
がほぼ大気圧まで低下し、定量弁７０のフロート弁６８
が各給油箇所の背圧によって弁座７７に押圧され、潤滑
油流入口６９が閉鎖される。圧抜き弁８が切り替えられ
前記タイマーＴ１の設定時間が経過した後に、潤滑油ポ
ンプ２を駆動する電動機３が停止されると共に、圧抜き
弁８のソレノイド２４が消磁し、配管１６の潤滑油タン
ク４への連通が遮断される（図２のステップ１３）。After the lubricating oil is supplied by the parallel type lubricating oil distribution valve 7, the pressure sensor 10 causes the pipes 15 and 16 to flow.
When the internal pressure rise is confirmed (step S8 in FIG. 2),
The electric motor 3 that drives the lubricating oil pump 2 is stopped, the solenoid 21 of the switching valve 5 is demagnetized, and the pipe 13 and the pipe 12 are returned to the communicating state (step 9 in FIG. 2). that time,
The solenoid 24 of the depressurization valve 8 is excited to connect the pipes 16 and 17 so that the lubricating oil pressure at the lubricating oil inlet 69 of the pipes 15 and 16 and the metering valve 70 of the parallel type lubricating oil distribution valve 7 is released (Fig. 2 step S10), the pressure of these parts is reduced to almost atmospheric pressure, and the float valve 68 of the metering valve 70 is
Is pressed against the valve seat 77 by the back pressure of each oil supply point, and the lubricating oil inlet 69 is closed. After the pressure relief valve 8 is switched and the set time of the timer T1 elapses, the electric motor 3 that drives the lubricating oil pump 2 is stopped, the solenoid 24 of the pressure relief valve 8 is demagnetized, and the lubricating oil tank of the pipe 16 is demagnetized. The communication to 4 is blocked (step 13 in FIG. 2).
【００４２】その後、プランジャ６４が付勢バネ６５に
よって下方に押し下げられるため、プランジャ６４とフ
ロート弁６８の間にある潤滑油が加圧され、計量パイプ
６７の中を通って付勢バネ６５のある部分１０１に送ら
れ、潤滑油供給の１サイクルが完了する（図４
（ｄ））。After that, the plunger 64 is pushed downward by the biasing spring 65, so that the lubricating oil between the plunger 64 and the float valve 68 is pressurized, and the biasing spring 65 passes through the measuring pipe 67. Sent to part 101 to complete one cycle of lubricating oil supply (Fig. 4
(D)).
【００４３】また、センサー１０によって並列型潤滑油
分配弁７に潤滑油ポンプ２から供給された潤滑油の圧力
が前記タイマーＴ１の作動中に検出されないか、または
検出されても所定の圧力に達していないときは（図２の
ステップＳ８）、前記警報装置（図示せず）が作動さ
れ、作業者に並行型潤滑油分配弁７が正常に作動されて
いないことが知らされる（図２のステップＳ１１）。こ
の前記警報の信号が射出成形機側の制御装置に送信さ
れ、この射出成形機の制御装置によって射出成形機が自
動的に停止される。これによって、射出成形機を停止し
潤滑油配管系統のチェックなどの必要な対策を講じるこ
とができる。Further, the pressure of the lubricating oil supplied from the lubricating oil pump 2 to the parallel type lubricating oil distribution valve 7 by the sensor 10 is not detected during the operation of the timer T1, or even if it is detected, it reaches a predetermined pressure. If not (step S8 in FIG. 2), the alarm device (not shown) is activated, and the operator is informed that the parallel type lubricating oil distribution valve 7 is not normally activated (in FIG. 2). Step S11). The warning signal is transmitted to the control device on the injection molding machine side, and the injection molding machine is automatically stopped by the control device on the injection molding machine. This makes it possible to take necessary measures such as stopping the injection molding machine and checking the lubricating oil piping system.
【００４４】尚、前記実施の形態では切替弁５に４ポー
ト２位置電磁切替弁を使用しているが、図６のように４
ポート３位置電磁切替弁５ａにしてもよい、この場合圧
力逃がし弁８が省略できる。また、センサー１０によっ
て進行型潤滑油分配弁６または並列型潤滑油分配弁７の
作動異常が検知された場合、射出成形機の作動を自動的
に止めているが、作業者が手動で停止させてもよい。Although the 4-port 2-position electromagnetic switching valve is used as the switching valve 5 in the above-mentioned embodiment, it is not necessary to use the 4-port 2-position electromagnetic switching valve as shown in FIG.
The port 3 position electromagnetic switching valve 5a may be used, in which case the pressure relief valve 8 can be omitted. When the sensor 10 detects an abnormal operation of the progressive lubricating oil distribution valve 6 or the parallel lubricating oil distribution valve 7, the operation of the injection molding machine is automatically stopped, but the operator manually stops the operation. May be.
【００４５】[0045]
【発明の効果】以上より明らかなように、この発明は以
下の効果を奏する。請求項１に記載の潤滑油供給装置に
よれば、潤滑油ポンプ２から圧送された潤滑油が切替弁
５によって選択可能に接続された進行型潤滑油分配弁６
と並行型潤滑油分配弁７に圧送され、給油箇所によって
選択された潤滑油分配弁から潤滑油が給油される。した
がって、正確な潤滑油の供給が必要な前記型締め軸、突
き出し軸、射出軸の各ボールネジ部等への給油には進行
型潤滑油分配弁６が選択され、その他の給油箇所には並
行型潤滑油分配弁７が選択されて給油される。これによ
って、給油箇所に対応させて最適な進行型潤滑油分配弁
６と並列型潤滑油分配弁７の組み合わせができ、潤滑油
供給装置を小形化することができ、その低価格化を実現
することができる。As is clear from the above, the present invention has the following effects. According to the lubricating oil supply device of claim 1, the progressive lubricating oil distribution valve 6 in which the lubricating oil pumped from the lubricating oil pump 2 is selectively connected by the switching valve 5.
And is fed under pressure to the parallel type lubricating oil distribution valve 7, and the lubricating oil is supplied from the lubricating oil distribution valve selected by the lubrication location. Therefore, the progressive type lubricating oil distribution valve 6 is selected for supplying oil to the ball screw portions of the mold clamping shaft, the protruding shaft, the injection shaft, etc., which require accurate supply of lubricating oil, and the parallel type is used for other lubricating points. The lubricating oil distribution valve 7 is selected and oil is supplied. As a result, it is possible to optimally combine the progressive lubricating oil distribution valve 6 and the parallel lubricating oil distribution valve 7 in accordance with the lubrication location, to reduce the size of the lubricating oil supply device, and to reduce the cost. be able to.
【００４６】請求項２に記載の潤滑油供給装置によれ
ば、進行型潤滑油分配弁６の最後に潤滑油が吐出される
吐出口６１から逆止弁１１を介して並列型潤滑油分配弁
７の潤滑油供給口２３から最も離れた位置にある接続口
２２に潤滑油が供給されるため、並列型潤滑油分配弁７
の内部の圧力は予圧されて、潤滑油ポンプ２から圧送さ
れてくる潤滑油により、前記各定量弁７０が作動される
ために必要な潤滑油圧力に容易に達し、この各定量弁７
０が短期間のうちに作動される。また、単に潤滑油ポン
プ２から圧送された潤滑油供給口２３からのみ供給した
場合と比べ、この部分での圧力低下の度合いが軽減され
るため、定量弁７０の作動不良が防止される。According to the lubricating oil supply device of the second aspect, the parallel lubricating oil distributing valve is provided from the discharge port 61 through which the lubricating oil is discharged at the end of the progressive lubricating oil distributing valve 6 through the check valve 11. Since the lubricating oil is supplied to the connection port 22 located farthest from the lubricating oil supply port 23 of No. 7, the parallel type lubricating oil distribution valve 7
The pressure inside the valve is pre-pressurized, and the lubricating oil pumped from the lubricating oil pump 2 easily reaches the lubricating oil pressure necessary for operating each of the metering valves 70.
0 is activated in a short period of time. Further, as compared with the case where the lubricating oil is supplied only from the lubricating oil supply port 23 that is pumped from the lubricating oil pump 2, the degree of the pressure drop in this portion is reduced, so that the malfunction of the metering valve 70 is prevented.
【００４７】請求項３に記載の潤滑油供給装置によれ
ば、並行型潤滑油分配弁７の接続口２２にセンサー１０
が取り付けられており、進行型潤滑油分配弁６の全潤滑
油吐出口から潤滑油が射出成形機の正確な潤滑油の供給
が必要な箇所に潤滑油が供給されているか否かの確認が
なされ、また、このセンサー１０によって並列型潤滑油
分配弁７に供給された潤滑油の圧力も検知できるため、
センサー１つで潤滑油供給装置全体の作動状況が簡単に
確認できる。According to the lubricating oil supply device of the third aspect, the sensor 10 is provided at the connection port 22 of the parallel type lubricating oil distribution valve 7.
Is attached, and it is possible to confirm whether or not the lubricating oil is supplied from all the lubricating oil discharge ports of the progressive lubricating oil distribution valve 6 to the portion of the injection molding machine at which accurate lubricating oil supply is required. The pressure of the lubricating oil supplied to the parallel type lubricating oil distribution valve 7 can also be detected by the sensor 10.
The operating status of the entire lubricating oil supply system can be easily checked with one sensor.
【図１】 この発明の一実施の形態の回路図であるFIG. 1 is a circuit diagram of an embodiment of the present invention.
【図２】 この発明の作動順序を表す概略フローチャー
トFIG. 2 is a schematic flowchart showing an operation sequence of the present invention.
【図３】 進行型分配弁の動作を示す図であるFIG. 3 is a diagram showing an operation of a progressive distribution valve.
【図４】 並列型潤滑油分配弁の定量弁の動作を示す図
であるFIG. 4 is a diagram showing an operation of a metering valve of a parallel type lubricating oil distribution valve.
【図５】 並列型潤滑油分配弁を表す図であるFIG. 5 is a diagram showing a parallel type lubricating oil distribution valve.
【図６】 この発明の他の実施の形態の回路図であるFIG. 6 is a circuit diagram of another embodiment of the present invention.
【図７】 従来例の回路図であるFIG. 7 is a circuit diagram of a conventional example.
１…潤滑油供給装置 ２…潤滑油ポンプ ３…電動機 ４…潤滑油タンク ５…切替弁 ５ａ…切替弁 ６…進行型潤滑油分配弁 ７…並列型潤滑油分配弁 ８…圧抜き弁 ９…制御装置 １０…センサー １１…逆止弁 ２０…安全弁 ２５…切替弁 ７０…定量弁 1 ... Lubricant supply device 2 ... Lubricant pump 3 ... electric motor 4 ... Lubricating oil tank 5 ... Switching valve 5a ... Switching valve 6 ... Progressive lubricating oil distribution valve 7. Parallel type lubricating oil distribution valve 8 ... Pressure relief valve 9 ... Control device 10 ... Sensor 11 ... Check valve 20 ... Safety valve 25 ... Switching valve 70 ... Quantitative valve
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開2000−176985（ＪＰ，Ａ) 特開 平11−268093（ＪＰ，Ａ) 特開2000−190375（ＪＰ，Ａ) 特開 平11−277600（ＪＰ，Ａ) 特開 平10−180834（ＪＰ，Ａ) 特開 平８−207108（ＪＰ，Ａ) 特開 平３−79325（ＪＰ，Ａ) 特開2002−28961（ＪＰ，Ａ) 特開2000−356297（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 45/83 B29C 45/82 F16N 7/38 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 2000-176985 (JP, A) JP 11-268093 (JP, A) JP 2000-190375 (JP, A) JP 11-277600 ( JP, A) JP 10-180834 (JP, A) JP 8-207108 (JP, A) JP 3-79325 (JP, A) JP 2002-28961 (JP, A) JP 2000 −356297 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) B29C 45/83 B29C 45/82 F16N 7/38
Claims (3)
クに吸引側を接続した潤滑油ポンプと、この潤滑油ポン
プを駆動する電動機と、この電動機を制御する制御装置
と、前記潤滑油ポンプの吐出側に接続された切替弁とを
有する潤滑油供給装置であって、 前記切替弁により、複数の給油箇所に潤滑油を分配する
ための少なくとも１つの進行型潤滑油分配弁と、少なく
とも１つの並列型潤滑油分配弁とが、選択可能に潤滑油
ポンプの吐出側に接続されていることを特徴とする射出
成形機用自動給油装置。1. A tank for storing lubricating oil, a lubricating oil pump having a suction side connected to the tank, an electric motor for driving the lubricating oil pump, a control device for controlling the electric motor, and the lubricating oil pump. A lubricating oil supply device having a switching valve connected to a discharge side, wherein at least one progressive lubricating oil distribution valve for distributing lubricating oil to a plurality of lubrication points by the switching valve, and at least one An automatic oil supply device for an injection molding machine, wherein a parallel type lubricating oil distribution valve is selectively connected to a discharge side of a lubricating oil pump.
口のうち最後に潤滑油が吐出される吐出口と、前記並列
型潤滑油分配弁の潤滑油供給口から最も離れた位置にあ
る接続口とを逆止弁を介して連通した請求項１に記載の
射出成形機用自動給油装置。2. A position farthest from the last discharge port of the lubricating oil discharge valve of the progressive lubricating oil distribution valve and the lubricating oil supply port of the parallel lubricating oil distribution valve. The automatic oil supply device for an injection molding machine according to claim 1, wherein the connection port communicates with the connection port via a check valve.
付けられた請求項２に記載の射出成形機用自動給油装置3. The automatic oil supply device for an injection molding machine according to claim 2, further comprising a pressure sensor attached to the connection port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000324819A JP3513703B2 (en) | 2000-10-25 | 2000-10-25 | Automatic lubrication system for injection molding machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000324819A JP3513703B2 (en) | 2000-10-25 | 2000-10-25 | Automatic lubrication system for injection molding machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002127221A JP2002127221A (en) | 2002-05-08 |
| JP3513703B2 true JP3513703B2 (en) | 2004-03-31 |
Family
ID=18802285
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000324819A Expired - Fee Related JP3513703B2 (en) | 2000-10-25 | 2000-10-25 | Automatic lubrication system for injection molding machines |
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| Country | Link |
|---|---|
| JP (1) | JP3513703B2 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4605933B2 (en) * | 2001-04-24 | 2011-01-05 | リューベ株式会社 | Lubrication system and lubricating oil supply device |
| JP4272876B2 (en) * | 2002-12-06 | 2009-06-03 | リューベ株式会社 | Lubricating oil supply device |
| JP2004230616A (en) * | 2003-01-29 | 2004-08-19 | Fanuc Ltd | Injection molding machine |
| JP4509597B2 (en) * | 2004-02-17 | 2010-07-21 | リューベ株式会社 | Lubrication system and lubricating oil supply device |
| DE102004032453A1 (en) * | 2004-07-05 | 2006-01-26 | Lincoln Gmbh & Co. Kg | Lubricating system and method for controlling the switching pressure in a lubrication system |
| DE102004042744B4 (en) * | 2004-09-03 | 2014-07-24 | Sumitomo (Shi) Demag Plastics Machinery Gmbh | Closing unit for an injection molding machine |
| JP4551213B2 (en) * | 2004-12-28 | 2010-09-22 | リューベ株式会社 | Injection molding machine |
| JP4708195B2 (en) * | 2005-02-10 | 2011-06-22 | 東洋機械金属株式会社 | Vertical injection molding machine |
| WO2007036244A1 (en) * | 2005-09-23 | 2007-04-05 | Demag Ergotech Gmbh | Closing unit for an injection molding machine |
| JP6062830B2 (en) * | 2013-08-29 | 2017-01-18 | ファナック株式会社 | Lubrication device for injection molding machine |
| CN112413380A (en) * | 2020-09-23 | 2021-02-26 | 柳州开宇塑胶机械有限公司 | Control method for lubricating multi-path lubricating shared lubricating pump of injection molding machine |
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2000
- 2000-10-25 JP JP2000324819A patent/JP3513703B2/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| JP2002127221A (en) | 2002-05-08 |
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