JPH0487525U

JPH0487525U -

Info

Publication number: JPH0487525U
Application number: JP40342590U
Authority: JP
Priority date: 1990-12-14
Filing date: 1990-12-14
Publication date: 1992-07-29

Description

[Brief explanation of the drawing]

第１図はトランスフアプレスの全体構成を示す
正面図、第２図は第１図中―線に沿う矢視図
、第３図は連動機構を示す概略構成図及び第４図
は油圧シリンダを駆動するための油圧回路を示す
構成図である。３…クランクシヤフト、８…フイードバー駆動
機構、９，１０，１１…フイードバー、１５…ス
ライダ、１８…油圧シリンダ、１９…駆動ロツド
、２０…連動機構、２９…シリンダケース、３０
…ピストン、３５…油供給手段、４１…電磁弁付
リリーフ弁、４６…油逃がし回路。 Figure 1 is a front view showing the overall configuration of the transfer press, Figure 2 is a view taken along the line in Figure 1, Figure 3 is a schematic configuration diagram showing the interlocking mechanism, and Figure 4 shows the hydraulic cylinder. FIG. 2 is a configuration diagram showing a hydraulic circuit for driving. 3... Crankshaft, 8... Feed bar drive mechanism, 9, 10, 11... Feed bar, 15... Slider, 18... Hydraulic cylinder, 19... Drive rod, 20... Interlocking mechanism, 29... Cylinder case, 30
... Piston, 35 ... Oil supply means, 41 ... Relief valve with electromagnetic valve, 46 ... Oil relief circuit.

Claims

[Claims for Utility Model Registration] An override of a feed bar drive mechanism that has a slider that is raised and lowered by the crankshaft of a transfer press, and a drive rod that moves the feed bar back and forth in the advance and return directions via an interlocking mechanism by being raised and lowered. The load safety device includes a hydraulic cylinder interposed between the slider and the drive rod, the hydraulic cylinder being connected to a cylinder case connected to either one of the slider or the drive rod, and the other. It has a piston that moves the feed bar in advance by moving the piston relative to the cylinder case.
The hydraulic cylinder is configured to move to the midpoint in the return direction, and the hydraulic cylinder is overloaded when the feed bar moves in the advance/return direction, causing the oil stored between the cylinder case and the piston to exceed a predetermined value. An overload safety device for a feed bar drive mechanism, characterized in that an oil relief circuit is connected to the cylinder case to release oil when the pressure reaches .