SU695765A1 - Pressure -casting machine protection guard - Google Patents

Description

one

The invention relates to foundry, in particular to machine-side casting guards under pressure.

A pressurized machine guard is known, containing a door with a handle mounted with rollers on guides and fitted with a spring-loaded lever and cam for fixing the shield in any position 1.

Such a protective fence provides ease of maintenance of the machine, one of them does not guarantee the safety of the operator ..

The aim of the invention is to increase operator safety.

This goal is achieved by the fact that the reliable fence is equipped with a two-arm lever, hinged on the frame of the machine at the point of connection of the shoulders, with the possibility of one arm interacting with the movable plate of the machine and the other with the door.

ria FIG. 1 shows the protective enclosure of the machine cast under pressure in the open position; figure 2 is the same in the closed position; on r. 3 - in id fi 2.

Safety fence includes

stop 2, IOM 3 interact with the two shoulders of the lever 4, pugo on the machine bed 5, comes into contact with stop 7, Zolgreplenga on the plate 8 may be closed. Control of the closed position; Avern i of the axle is terminated with the end switch; m 9,

Door 1 moves in the direction of the LiJi .M on the rollers (not shown).

The movable plate 8 and the door 1 of contact with the two shoulders are not in the Icholyom position;

The cycle of the machine starts with the manual opening of door 1 to G1are7 before pressing on the holder 9. Movable or 8 to 8 production of clamping half-molds, 3 to the end of the closing, movable plate 8 to be placed on the shoulder 6 of the two shoulders pjrsunra 4 and moves the shoulder 6 k2 vertical position in horizontal, - With r-th arm 3, two shoulders 1 about 4 moves from horizontal i cr to vertical, in the corner of the turn of pressure on the stop 2 doors J, after the end of the cry process, g: gci 1 casting B regs form

Moving plate 8, moving to its original position, frees shoulder 6 from: acting on stop 7. When door 1 is moved to its original position, control unit 2 acts on shoulder 3 and double-arm lever 4 turns to its original position.

; Operator safety is enhanced by preventing the door from moving to its original position before opening the mold.

Claims (1)

1. USSR author's certificate number 463510. class. B 22 D 17/20, 197J. r TiTSi-- 3-4bi -L-I-7-7 Fig 2 i