JPH0471874U

JPH0471874U -

Info

Publication number: JPH0471874U
Application number: JP11346590U
Authority: JP
Priority date: 1990-10-31
Filing date: 1990-10-31
Publication date: 1992-06-25

Description

[Brief explanation of the drawing]

第１図は本考案に係る主弁体の構造図、第２図
は本考案に係る弁のシンボル図、第３図は本考案
に係る弁のシーケンス図、第４図〜第７図は本考
案に係る他の切換位置における主弁体の構造図、
第８図、第９図はそれぞれ別の従来の方向流量制
御弁を含んだシンボル図である。なお、各図中、同一符号は同一又は相当部分を
示す。１０……主弁体、１０ａ，１０ｂ……比例ソレ
ノイド、１１……摺動孔、１２……スプール、１
３ａ，１３ｂ……パイロツト油室、１０−１……
型開き位置、１０−２……型開き後位置決め位置
、１０−３……型閉じ保持位置、１０−４……低
速型閉じ位置、１０−５……差動高速型閉じ位置
。 Figure 1 is a structural diagram of the main valve body according to the present invention, Figure 2 is a symbol diagram of the valve according to the present invention, Figure 3 is a sequence diagram of the valve according to the present invention, and Figures 4 to 7 are the main valve body according to the present invention. A structural diagram of the main valve body in other switching positions according to the invention,
FIGS. 8 and 9 are symbolic diagrams including different conventional directional flow control valves. In each figure, the same reference numerals indicate the same or equivalent parts. 10...Main valve body, 10a, 10b...Proportional solenoid, 11...Sliding hole, 12...Spool, 1
3a, 13b... Pilot oil chamber, 10-1...
Mold opening position, 10-2... Positioning position after mold opening, 10-3... Mold closing holding position, 10-4... Low speed mold closing position, 10-5... Differential high speed mold closing position.

Claims

[Scope of Claim for Utility Model Registration] Four ports: A port and B port on the cylinder side, P port on the pump side, and T port on the tank side, a proportional solenoid, and a command input to this proportional solenoid. In a proportional electromagnetic directional flow control valve equipped with one sliding spool, the first command input to the proportional solenoid on one side of the spool connects the P port, A port, and B port, and By inputting the second command to the proportional solenoid on the one side, the position where the T port is blocked is determined by the proportional solenoid on the one side. The third command input to the solenoid sets the position where all ports are blocked, and the fourth command input to the proportional solenoid on the other side of the spool sets the position where the T port, A port, and B port are in communication, and A fifth command input to the proportional solenoid on the other side changes the position where the P port is blocked to a position where the P port communicates with the B port and the A port communicates with the T port. Proportional solenoid 5-position directional flow control valve.