JPS61181713U

JPS61181713U -

Info

Publication number: JPS61181713U
Application number: JP6551585U
Authority: JP
Priority date: 1985-04-30
Filing date: 1985-04-30
Publication date: 1986-11-13

Description

[Brief explanation of the drawing]

第１図は本考案装置の一実施例を示す回路図、
第２図は本考案装置で使用するパルスコード信号
発生装置の一例を示す構成説明図、第３図は第１
図における圧力源とタンク間の流路の解析説明図
、第４図は第２図のパルスコード信号発生装置の
入力電圧対出力パルスコード信号と二次圧力との
関係の一例を示した図、第５図は同じく入力電圧
（目標値）対出力パルスコード信号の関係の一例
を示した図、第６図は本実施例の充填及び保圧行
程における流量、圧力の制御例を示す図である。１……射出成形機、４……アクチユエータ（射
出用シリンダ）、５……アクチユエータ（油圧モ
ータ）、９……方向切換弁、１１……タンク、１
２ａ〜１２ｃ，１３ａ〜１３ｃ……高速オンオフ
弁、１４……圧力源（油圧源）、１５……方向切
換弁９の入口ポート、１６ａ〜１６ｃ，１７ａ〜
１７ｃ……可変絞り弁、１８ａ〜１８ｃ，１９ａ
〜１９ｃ……ソレノイド、２０……パルスコード
信号発生装置。 FIG. 1 is a circuit diagram showing an embodiment of the device of the present invention;
FIG. 2 is a configuration explanatory diagram showing an example of a pulse code signal generator used in the device of the present invention, and FIG.
Fig. 4 is a diagram showing an example of the relationship between the input voltage, the output pulse code signal, and the secondary pressure of the pulse code signal generator of Fig. 2; FIG. 5 is a diagram showing an example of the relationship between the input voltage (target value) and the output pulse code signal, and FIG. 6 is a diagram showing an example of controlling the flow rate and pressure in the filling and pressure holding strokes of this embodiment. . 1... Injection molding machine, 4... Actuator (injection cylinder), 5... Actuator (hydraulic motor), 9... Directional switching valve, 11... Tank, 1
2a-12c, 13a-13c...High-speed on/off valve, 14...Pressure source (hydraulic source), 15...Inlet port of directional switching valve 9, 16a-16c, 17a-
17c...variable throttle valve, 18a to 18c, 19a
~19c...Solenoid, 20...Pulse code signal generator.

Claims

[Claims for Utility Model Registration] In an apparatus for controlling the actuator by connecting a directional control valve 9 between the actuators 4 and 5 of the injection molding machine 1 and the pressure source 14, the pressure source 1
A series circuit of a plurality of high-speed on/off valves 12a, 12b... and variable throttle valves 16a, 16b... is connected in parallel between the directional control valve 9 and the inlet port 15 of the directional control valve 9. Inlet port 15
and a plurality of high-speed on/off valves 1 between the tank 11 and the tank 11.
3a, 13b... and variable throttle valves 17a, 17b...
The series circuits of ... are connected in parallel, and each of the high-speed on-off valves 12a, 12b..., 1
Solenoids 18a, 18b... of 3a, 13b...
..., 19a, 19b... are connected to a pulse code signal generator 20 that outputs a necessary pulse code signal for switching and controlling each of the high-speed on-off valves at high speed and in multiple stages. Molding machine flow and pressure control device.