JPS5829643A - Oil amount switching device for injection molding machine - Google Patents
Oil amount switching device for injection molding machineInfo
- Publication number
- JPS5829643A JPS5829643A JP12775281A JP12775281A JPS5829643A JP S5829643 A JPS5829643 A JP S5829643A JP 12775281 A JP12775281 A JP 12775281A JP 12775281 A JP12775281 A JP 12775281A JP S5829643 A JPS5829643 A JP S5829643A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- hydraulic
- pumps
- flow rate
- switch
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/042—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in"
- F15B11/0426—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in" by controlling the number of pumps or parallel valves switched on
-
- 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
- B29C45/82—Hydraulic or pneumatic circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
- F15B2211/20584—Combinations of pumps with high and low capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/426—Flow control characterised by the type of actuation electrically or electronically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6654—Flow rate control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7058—Rotary output members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fluid-Pressure Circuits (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
□本発明は、射出成形機の油量切換装置に係り、特にデ
ジタルスイッチの利点である１０進数数値表現を利用し
て、複数台定吐出ポンプの流捕制御を簡易に行う装置を
提供するものである。[Detailed description of the invention] □The present invention relates to an oil amount switching device for an injection molding machine, and in particular utilizes decimal numerical representation, which is an advantage of digital switches, to simplify flow capture control of multiple constant discharge pumps. The purpose of the present invention is to provide a device for performing
従来においては、油圧負荷への供給油量を、制御する方
法としては、複数台のポンプを使用して、その組合せを
かえる方法と、流量制御弁を利用して供給油量を制御す
る方法がある。ポンプの組合せをかえる方法では、供給
油量が段階的にかわるため、油量変化を連続的に制御す
るには段階数を増加させたければ々らないので相当数の
ポンプを必要とし、コストアップとなり且つ油圧回路も
複雑化するので油量変化を連続的に制御することはでき
なかった。一方、電気油圧式流量制御弁を利用して供給
油量を制御する流量制御方法は％電気信号を連続的に制
御することによりそれに応じて流量を連続的に制御する
利点を持っている。従って、デジタルスイッチを利用し
て連続的と見なせる多段階に切換えられる電気信号を与
えることにより、油圧負荷での供給油量を連続的に制御
できる。しかしながら複数台のポンプは常時、全数吐出
を必要とし、エネルギーの損失を生じ１ｌｌｉｆ、 ｉ
制御弁についても、油圧負荷の最大必要流量を制御する
ため、大口径の流量制御弁を必要としエネルギーの損失
と大口径化によるコストアップＶ′ｉｉ：￥けられなか
った。寸たこのＣ１イ気油ＥＥ式流Ｅｎ’ １ｌｔｌｌ
ｉＨＩ弁を利用する方法とポンプの糾合せを切換えろ
方法と複合する場合においても、デジタルスイッチの設
定数値からポンプ組合ぜを選択する為ｒけ、コンピュー
タ等を利用した演Ｖｌ−処理技能を必要としていた。従
ってコンピュータを使用するためには、高度な′山；子
技術と、ソフトウェア等の技術を必要とし、現場におけ
る特殊技仙者を必智としていた。Conventionally, methods for controlling the amount of oil supplied to a hydraulic load include using multiple pumps and changing their combinations, and controlling the amount of oil supplied using a flow control valve. be. In the method of changing the combination of pumps, the amount of supplied oil changes in stages, so in order to continuously control changes in oil amount, it is necessary to increase the number of stages, which requires a considerable number of pumps, which increases costs. In addition, since the hydraulic circuit becomes complicated, it is not possible to continuously control changes in the oil amount. On the other hand, a flow rate control method that uses an electro-hydraulic flow control valve to control the amount of supplied oil has the advantage of continuously controlling the % electric signal and accordingly controlling the flow rate accordingly. Therefore, by using a digital switch to provide an electrical signal that can be switched in multiple stages that can be regarded as continuous, it is possible to continuously control the amount of oil supplied under the hydraulic load. However, multiple pumps always require full discharge, resulting in energy loss.
As for the control valve, in order to control the maximum required flow rate of the hydraulic load, a flow control valve with a large diameter is required, resulting in energy loss and cost increase due to the large diameter. Sunoctopus C1 Iki Oil EE Shikiryu En' 1ltll
Even when combining the method of using the iHI valve with the method of switching pump combinations, it is necessary to have Vl-processing skills using a computer etc. to select the pump combination from the set values of the digital switch. It was. Therefore, in order to use a computer, advanced technical skills and software skills were required, and it was necessary to have special skills in the field.
本発明は、従来よりある複政台のポンプの絹合せによる
前葉切換装置を用いると共に、＋、４イ、気油圧式流量
制御弁を有する油圧回路において、デジタルスイッチを
利用して連続的と見々せる段階的な電気信号を与えるこ
とによりポンプ組合せ、ならびに′心気油王式流せ制御
弁の流星制御をする新規な装置ａを提供するものである
。The present invention utilizes a front-leaf switching device based on a combination of conventional pumps, and uses a digital switch in a hydraulic circuit having +, 4, and air-hydraulic flow control valves to achieve continuous control. The present invention provides a novel device (a) for controlling a pump combination as well as a 'Shin-Ki Yu-O-type flow control valve' by providing stepwise electrical signals that increase the flow rate.
以下本発明を一実施例をもとＶＣＦｒＦ細に説明する。Hereinafter, the present invention will be explained in detail based on one embodiment of VCFrF.
第１図は本発明の一実施例機器の蔭略構成図で、第２図
は請／図におけるデジタルスイッチ／の上位桁３の接点
構成ポンプ切換回路６、電磁弁９〜７．２の機能説明図
、第、３図（−１：第１図におけるデジタルスイッチ／
の下位桁コの接点構成流量弁電圧設定回路７と流Ｍ弁増
巾器／ｌＩの関係を示す機能説明図である。図で／はデ
ジタルスイッチであり、７位の数値桁＝と１０位の数値
桁３とよりなる。各位の接点構成は、第２図の／ｌ！；
、２ｄ’、３図の２３に示すごとく、θ〜ｑの数値に対
し、各／ケの接点を有し、θ〜９の任意の数値に対応す
る接点が閉路するようになっている。Fig. 1 is a schematic configuration diagram of a device according to an embodiment of the present invention, and Fig. 2 shows the contact structure of the upper digit 3 of the digital switch in the figure, and the functions of the pump switching circuit 6 and the solenoid valves 9 to 7.2. Explanatory diagram, Figure 3 (-1: Digital switch in Figure 1/
It is a functional explanatory diagram showing the relationship between the contact configuration flow rate valve voltage setting circuit 7 and the flow M valve amplifier/lI in the lower digits. In the figure, / is a digital switch, consisting of the 7th numerical digit = and the 10th numerical digit 3. The contact configuration of each person is /l! in Figure 2. ;
, 2d', as shown at 23 in FIG. 3, there are contact points for each value of θ to q, and a contact point corresponding to an arbitrary value of θ to 9 is closed.
イＩ］／ｌソ１において、６はポンプ切換回路であり、
デジタルスイッチの７０位の数値桁３と信号経路グによ
って、電気的に接続されている。さらにポンプ切換回路
６は信号経路ｇにより、油圧ポンプＰＩ ｒ Ｐ２ ＋
”４ ＋ ＰＲの吐出制御電磁弁９，１０゜／ ／
、 ／ 、２ Ｋ ｆ’、気的に接続されている。次に
７は流Ｉ４１′弁’Ｒｔ １１Ｅ設定回路でありデジタ
ルスイッチの７位の数値桁コと信号経路ｊによって電気
的に接続されている。また流量弁電圧設定回路りけ雌惜
弁増巾器ｌりと電気油田式流゛星制御弁／６と信号経路
／、？、１５により’Ｐｌｔ気的に接続されている。さ
らに／りは油圧負荷でありへ′１，１図の場合油圧モー
タを示す。又史に第７図のＷ施例ではこの油１丁モータ
／７げスクリュ２９に回転を与えており、一方原料樹脂
２６け自動温度調節可能々シリンダー７のホツパコ左に
（ｌ 給さね更にスクリュコタの回転により可塑化溶融
されシリンダ先端部に徐々に貯えられてスクリュ２９を
後退させる。又第１図において、ポンプＰＩ＋Ｐ２ ＋
”４ ＊ ”８の吐出針Ｑ、、Ｑ、２．Ｑ４．Ｑ、の
関係けＱ。In 1), 6 is a pump switching circuit,
It is electrically connected to the 70th numerical digit 3 of the digital switch by a signal path. Furthermore, the pump switching circuit 6 is connected to the hydraulic pump PI r P2 + by the signal path g.
"4 + PR discharge control solenoid valve 9,10° / /
, / , 2 K f', are electrically connected. Next, 7 is a flow I41' valve 'Rt11E setting circuit, which is electrically connected to the seventh numerical digit of the digital switch by a signal path j. In addition, there is a flow valve voltage setting circuit, a female leakage valve widening device, an electric oilfield type meteor control valve/6, and a signal path/? , 15 are electrically connected. Furthermore, / is a hydraulic load, and the case of Fig. 1 shows a hydraulic motor. Furthermore, in the W example shown in Fig. 7, this 1-oil motor/7-gear screw 29 is given rotation, while 26 raw resins are supplied to the left side of the cylinder 7 with automatic temperature control. As the screw rotor rotates, it is plasticized and melted and gradually stored in the tip of the cylinder, causing the screw 29 to retreat.In addition, in FIG.
"4*"8 discharge needles Q,,Q,2. Q4. Q, related to Q.
を基準として、Ｑ２＝コＸ Ｑ、 、 Ｑ、４−りＸ
Ｑ、 、 Ｑ、−４ＸＱ。Based on Q2=koX Q, , Q, 4-riX
Q, , Q, -4XQ.
となるように各”Ｉ ＋Ｐｔ ＋ Ｐ４ ＊ Ｐｌｌの
吐出１−゛を選定し、寸た、＃≠Ｑけ油圧負荷／７に加
わる流−１］’ｊ−）ＱＦけ電気油圧式流量制御弁／Ａ
を介して油タンクに流れる流側″とする。Select the discharge 1-゛ of each "I + Pt + P4 * Pll so that #≠Q hydraulic load / flow applied to 7 -1] 'j-) QF electro-hydraulic flow control valve /A
The flow side that flows into the oil tank through the
ポンプ”ｌ ｒ Ｐ２ ＋ ”４ ｒ ”８の吐出口は
通常げ′「Ｆ、磁弁９，１０．／／、／、ｉにより油タ
ンクへもどされ（ｑ ）
でいるが、電磁弁９，１０．／／、／：ｌの励磁の組合
せをかえることにより、各ポンプの吐出量Ｑ、。The discharge port of the pump "l r P2 + "4 r "8 is normally returned to the oil tank (q) by the solenoid valves 9, 10. 10. By changing the combination of excitation of //, /:l, the discharge amount Q of each pump is changed.
Ｑ、 、 Ｑ４． Ｑ８け加え合せられて油圧負荷／７
、電気油圧式流量制御弁／乙へ供給されるようになって
いる。Q, , Q4. Q8 plus total hydraulic load/7
, electro-hydraulic flow control valve/B.
次に第２図において、、２７は直流電源装置であり％
７ｇは第１図におけるデジタルスイッチｌの１０位数値
桁３の接点を示しその一端は共通して直流電源装置２／
の一端に他端は夫々／θ個の横線に結ばれ適宜多数の接
続（マ） ＩＪラックス続）のダイオード２０のり。、
Ｄ１２・・・・Ｄ０４より７個の縦線をへて電磁弁？、
１０．／／。Next, in Fig. 2, 27 is a DC power supply device.
7g indicates the contact point of the 10th numerical digit 3 of the digital switch l in FIG.
One end of the diode and the other end thereof are connected to /θ horizontal lines, respectively, and a large number of connections (IJ and IJ rack connections) are made with 20 diodes. ,
D12...Go through the 7 vertical lines from D04 and find the solenoid valve? ,
10. //.
／２の夫々の電磁コイｋ ／ ９ （７） ＳＶ／ 、
ＳＶ２ 、 Ｓ’ｌ。/2 each electromagnetic coil k / 9 (7) SV/,
SV2, S'l.
ＢＶｇＶＣ接続される。従って、電磁コイル／９の各Ｓ
Ｖ／、ＳＶ、２．ＳＶｐ、８０１′ｉ、接点／ｇの任意
数値信号部の閉路に対応したダイオード２０を介して、
励磁する。例えば、接点／ｇの数値゛５”が閉路の場合
、ダイオード：ｌＯのうちのＤ１１２ Ｄ５３を・＼て
電磁コイル／ｑのＳＶコ、ＳＶ＋が励磁され電磁コイル
／９の組合せ励磁により、第１図の電磁弁９，１０．／
／、／２け絹介せに応じて動作し％組合せに対応しブこ
ポンプ吐出−ｈｌ−を油圧負荷／７、市気油ＶＦ式流量
制御弁／Ａ−＼供給する。BVgVC connected. Therefore, each S of electromagnetic coil/9
V/, SV, 2. Via the diode 20 corresponding to the closing of the arbitrary numerical signal part of SVp, 801'i, contact/g,
Excite. For example, when the value of contact /g is ``5'', the diode: D112 D53 of lO is excited, and SV and SV+ of electromagnetic coil /q are excited, and the combined excitation of electromagnetic coil /9 causes the first Solenoid valves 9, 10./
/, /2 operates in accordance with the % combination and supplies buko pump discharge -hl- with hydraulic load /7 and city oil VF type flow control valve /A-\.
第３図において、２２は１０個の直列１１↓゛抗器ｒ、
２３１’ｊ ？ｐ ／図のデジタルスイッチ／の／位数
値桁コの接点、２’ｌば７個の直流定′１１工圧宙１源
装置６′を示す。第、？図において直流、定市、圧′市
源装置６゜２ダの出力電圧Ｅ１け７０個で夫々ＩＪＥ抗
値ｒΩを持つ抵抗器２２により終端されていて、次点２
３の任意の数値の接点の閉路時における串カタルスイッ
チの数値）となる。即ち接点２３のいとバイパス量が増
えラインの流用が減少する公知のブリードオフ油圧回路
の使い方をしている。出力′電圧ｇｏは流量弁増巾器／
グを介して、電気油圧式流量制御弁／６の流…を指令す
ることになり、デジタルスイッチ／の数イ１＾がＴＩ、
１１の場合Ｖ′ｉ接点は全閉 Ｎ ｏ ＩＩの場合接点
は全開となり流、１言Ｑｙは最大流嗣°となる。ここで
、第１図に卦けるポンプｐ、の吐出量Ｑ、Ｖｉ、電気油
圧式流量制御升／乙が全開の流）、ｊＱ、Ｆ（０）と等
しく、即ちＱ、＝Ｑｙ（０）のように調整しておくもの
とする。In Fig. 3, 22 is 10 series 11↓゛ resistor r,
231'j? p/Digital switch in figure/digital value digit ko contacts, 2'l shows 7 DC constant '11 pressure space 1 source device 6'. No. ? In the figure, there are 70 output voltages E1 of a DC, constant voltage, voltage source device 6°2, each terminated by a resistor 22 having an IJE resistance value rΩ, and the runner-up
3) is the value of the skewer switch when the contact of any value is closed. That is, a known bleed-off hydraulic circuit is used in which the amount of bypass increases when the contact point 23 is closed, and the diversion of lines decreases. The output 'voltage go is the flow valve amplifier/
The flow of the electro-hydraulic flow control valve /6 will be commanded through the digital switch /.
In the case of No. 11, the V'i contact is fully closed, and in the case of No. II, the contact is fully open and the flow is the maximum flow. Here, the discharge amount Q, Vi of the pump p in Figure 1 is equal to the electro-hydraulic flow rate control box/flow when B is fully open), jQ, is equal to F(0), that is, Q, = Qy(0) It shall be adjusted as follows.
かくて本発明装置は、第７図、第２図％第３図に示す構
成により作用するが、今仮にデジタルスイッチ／の数値
を−４”と設定した場合、第、２図において、７０位の
スイッチの数″３”が閉じてダイオード２０のうちのＤ
５２ Ｄ１１３をへて電磁コイル／９のＳＶコ、ＳＶダ
が励磁され又第１図において、１位のスイッチの数″ｇ
”が閉じてポンプＰ２ ｒ ”４が選択さね、ポンプ吐
出量Ｖ′ｉ第ｑ図の対デジタルスイッチ数値対応表に示
す如くＱ、２＋Ｑ４になる。さらに第７図におけるＡ印
にて示す部分の拡大図つまりデジタルスイッチ／位数対
ＱＦ対応表を第Ｓ図に示すが第５図において、電気油圧
式流量制御弁／Ａの流量ＱＦは図示の１１．ＩＩに示す
値（これをＱＦ（ざ）と記す）となり、油圧負荷／７へ
の供給油−ＪｉｉＨＱ、はＱ＝ （（Ｑｔ ＋Ｑ４ ）
−ＱＦ（７）ｌとなる。従って更にデジタルスイッチ／
の数値な°’ 、ｔ Ｏ”〜” ！ｉ９ ”と変えた場
合を想定すると第５図に示す如く微少段階的に変化させ
ることがでＮる。Thus, the device of the present invention operates according to the configuration shown in FIG. 7, FIG. 2, and FIG. When the number of switches "3" is closed, D of the diodes 20
52 Through D113, the electromagnetic coils /9 SV co and SV da are excited, and in Fig. 1, the number of switches in the 1st position ``g''
" is closed and pump P2 r "4 is selected, and the pump discharge amount V'i becomes Q, 2+Q4 as shown in the digital switch numerical value correspondence table in Fig. q. Further, Fig. S shows an enlarged view of the part marked A in Fig. 7, that is, a digital switch/order versus QF correspondence table. In Fig. 5, the flow rate QF of the electrohydraulic flow control valve/A is as shown 11. The value shown in II (this is written as QF) is obtained, and the oil supplied to hydraulic load/7 - JiiHQ is Q = ((Qt + Q4)
-QF(7)l. Therefore, the digital switch/
The numerical value of °', t O"~"! Assuming the case where the value is changed to ``i9'', it is possible to change it in small steps as shown in FIG.
以上述べた如く、本発明装置を使用１するＣとにより、
デジタルスイッチ／の数値が°’ ００ ”〜゛背″迄
の／θ０１り階に分割設定ができ、かつ、デジタルスイ
ッチの数値に対応した、心安ポンプ数の選択も自動的に
行え、油ＬＴＥ負１（ｒの心髄油量以上の供給を行なげ
力い為、省エネルギー効果も発揮でき設定段階も大巾に
増メる為操作性能の向上ができ、さらに、何来に比して
少制御流”址の′覗気前用式流Ｗ＋’制御弁で実施でき
る為コストダウンもできる。As mentioned above, by using the device of the present invention1,
The value of the digital switch / can be divided into 1st floor /θ0 from °' 00 ” to ゛ back”, and the number of safe pumps can be automatically selected according to the value of the digital switch. 1 (Since the supply exceeds the amount of essential oil of R, energy saving effect can be achieved, and the number of setting steps can be greatly increased, improving operational performance.Furthermore, the control flow is smaller than before. Costs can be reduced because it can be implemented with the existing 'pre-peek flow W+' control valve.
第７図げ本発明を実施した機器の概略イ１４１シ１ノ｝
、第２図は第７図におけるデジタルスイッチ／の上位桁
３の接点構成，ポンプ切換回路６、電４１Ｆ＆弁９〜／
コの機能説．間口、第３図は第７図におけるデジタルス
イッチ／の下位桁λの接点構成、流値弁′ボ圧設定回路
７とｆＡｆ．ｈ１一弁増［１］器／グの関係を示す機能
説明図、第７図はポンプ吐出量対デジタルスイッチ数値
対応口、第５図は第７図におけるデジタルスイッチ／位
数対． ＱＦ対応口である。
／けデジタルスイッチ％ ２はデジタルスイッチの／位
数値桁，３けデジタルスイッチの／Ｏ位数値桁、６はポ
ンプ切換回路、７ １’ｔ Ｉ＃ｉ．量弁電圧設定回路
、？ 、 ／０．、 ／／ 、 ／２は電磁弁、／４’
Ｖｉ流量弁増巾器、／６は電気油圧式流量制御弁、／７
け油圧負荷、夕，！，ｇ，／３，／！； は信号経路
、７ｇはデジタルスイッチ点、／９け電磁コイル、コＯ
はダイオード、＝ｌは直流電源装置。
２２は抵抗器、、２３はデジタルスイッチ接点、、２４
’は直流定電圧電源装置。
特許出願人 株式会社日本製鋼所
手続補正書（自発）
シｌ、′＋”許庁艮官殿
１、 Ｆ、Ｊｉゴノ１の表示
昭和５６年特許願第１コγ７Ｓコ号
２、 発明の名称
射出成形機の油址切換装置
３、 補正をする者
小作との関係 特許出願人
名称 （グコｌ）株式会社日本製鋼所
４、代理人
第３図
２５５−Figure 7: Outline of equipment implementing the present invention
, Figure 2 shows the contact configuration of the upper digit 3 of the digital switch / in Figure 7, the pump switching circuit 6, the electric switch 41F & the valve 9 ~ /
Functional theory of ko. 3 shows the contact configuration of the lower digit λ of the digital switch / in FIG. 7, the flow value valve's pressure setting circuit 7, and fAf. A functional explanatory diagram showing the relationship between h1 and valve increaser [1], Fig. 7 shows the relationship between the pump discharge amount and the digital switch numerical value, and Fig. 5 shows the relationship between the digital switch and the order in Fig. 7. This is a QF compatible port. /digital switch% 2 is the / place value digit of the digital switch, /O place value digit of the 3 place digital switch, 6 is the pump switching circuit, 7 1't I#i. Volume valve voltage setting circuit? , /0. , // , /2 is a solenoid valve, /4'
Vi flow valve amplifier, /6 is electro-hydraulic flow control valve, /7
Hydraulic load, evening! ,g,/3,/! ; is the signal path, 7g is the digital switch point, /9 electromagnetic coil,
is a diode, =l is a DC power supply. 22 is a resistor, 23 is a digital switch contact, 24
' is a DC constant voltage power supply. Patent Applicant: Japan Steel Works, Ltd. Procedural Amendment (Voluntary) 1981 Patent Application No. 1 γ7S Co No. 2 Invention Name Oil land switching device for injection molding machine 3, Relationship with tenant making amendment Name of patent applicant (Gukol) Japan Steel Works, Ltd. 4, Agent Figure 3 255-
Claims (1)
圧ポンプと油圧負荷との間に配した電気油圧式流量制御
弁とを備え、油ＥＥ負荷への供給油量を調整することが
できる射出成形機の油圧装置で、１０進数数値表示のデ
ジタルスイッチを利用し最下位桁の数値スイッチにて電
気油圧式流量制御弁の連続的な流１汁制御を行い、７０
位以上の桁の数値スイッチにて複数台の定吐出油圧ポン
プの組合せの切換を行なオるようにしたことを特徴とす
る射出成形機の油量切換装置。[Claims] A hydraulic load and a plurality of constant discharge oil field pumps. An injection pump comprising a discharge control solenoid valve of the constant discharge hydraulic pump and an electro-hydraulic flow control valve disposed between the hydraulic pump and the hydraulic load, and capable of adjusting the amount of oil supplied to the oil EE load. In the hydraulic system of the molding machine, using a digital switch with a decimal value display, the electro-hydraulic flow control valve is continuously controlled by the numerical value switch of the lowest digit, and 70
An oil amount switching device for an injection molding machine, characterized in that a combination of a plurality of constant discharge hydraulic pumps can be switched using a numerical switch of digits or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12775281A JPS5829643A (en) | 1981-08-17 | 1981-08-17 | Oil amount switching device for injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12775281A JPS5829643A (en) | 1981-08-17 | 1981-08-17 | Oil amount switching device for injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5829643A true JPS5829643A (en) | 1983-02-21 |
Family
ID=14967803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12775281A Pending JPS5829643A (en) | 1981-08-17 | 1981-08-17 | Oil amount switching device for injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5829643A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990012217A1 (en) * | 1989-03-31 | 1990-10-18 | Kabushiki Kaisha Komatsu Seisakusho | Clutch actuating hydraulic circuit |
| JP2010164086A (en) * | 2009-01-13 | 2010-07-29 | Isuzu Motors Ltd | Plunger mechanism for combining multiple thrust |
| JP2012528279A (en) * | 2009-05-29 | 2012-11-12 | メッツォ ペーパー インコーポレイテッド | Digital hydraulic pressure control device |
| CN103790873A (en) * | 2012-10-31 | 2014-05-14 | 博世力士乐（常州）有限公司 | Hydraulic drive device and system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5649236A (en) * | 1979-09-28 | 1981-05-02 | Japan Steel Works Ltd:The | Automatic controller for amount of operating oil in injection molding machine |
-
1981
- 1981-08-17 JP JP12775281A patent/JPS5829643A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5649236A (en) * | 1979-09-28 | 1981-05-02 | Japan Steel Works Ltd:The | Automatic controller for amount of operating oil in injection molding machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990012217A1 (en) * | 1989-03-31 | 1990-10-18 | Kabushiki Kaisha Komatsu Seisakusho | Clutch actuating hydraulic circuit |
| US5163542A (en) * | 1989-03-31 | 1992-11-17 | Kabushiki Kaisha Komatsu Seisakusho | Clutch actuating hydraulic circuit |
| JP2010164086A (en) * | 2009-01-13 | 2010-07-29 | Isuzu Motors Ltd | Plunger mechanism for combining multiple thrust |
| JP2012528279A (en) * | 2009-05-29 | 2012-11-12 | メッツォ ペーパー インコーポレイテッド | Digital hydraulic pressure control device |
| CN103790873A (en) * | 2012-10-31 | 2014-05-14 | 博世力士乐（常州）有限公司 | Hydraulic drive device and system |
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