SU1204313A1 - Apparatus for working materials by application of pressure - Google Patents

Description

The invention relates to mechanical engineering and can be used for pressure treatment with high energy of a single pulse.

The aim of the invention is to increase productivity by reducing the cycle time of the treatment.

FIG. 1 shows the press section of the device, FIG. 2- section A-A in FIG. Tu in FIG. 3 shows a section BB in FIG. 2

The press part of the device consists of a bed 1 mounted on the columns 2 on the crosshead 3 working cylinders 4 with plungers 5 and movable partitions 6, return cylinders 7.c of the plunger 8 and tool parts 9 and 10.

The drive of the device contains two plunger cylinders 12 made in the housing 11 {one is shown with the plungers 13 and 14 and the spring-loaded bottom

15in each, two piston cylinder

16 (one lazan) with pistons 17 and piston rods 18 and 19, Two plunger cylinder-batteries 20 (shown one) with plungers 21 and 22. Case 11 is placed on the table 23 of the additional frame (not shown). Plungers ГЗ, 14, 21, 22 and rods 18

and 19 secured to the drive slider 24.

The cavities of the cylinders 12 are connected via pipelines 25 and 26 with quick-release valves 27 and 28 to the cavity of each cylinder 4 under the partition 6.

The cavities of the returning cylinders 7 are connected by pipelines 29 and 30 to the rod cavities of the cylinders 16, and by pipes 31 and 32 to the quick-acting valves 33 and 34, to the piston cavities 1 C 16.

The cavities of the battery cylinders 20 are connected by pipes 35 and 36 to the quick acting valves 37 38 with the cavities of the battery cylinders 20.

The device for processing materials pressure works as follows.

When the slide 24 runs down and closes the valves 33, 34, 37 and 38, and

0

five

0

five

(g

five

0

five

The two valves 27 and 28 of the plungers 21 and 22 and the pistons 17 compress the liquid in the cylinders 20 and piston cavities of the cylinders 16. Liquid from the cavities of the cylinders 12 through pipes 25 and 26 is fed into the cavities of the cylinders 4 under the partitions 6 resulting in plungers 5 with a cross-member 3 and the plungers 8 are lowered, moving the upper part 9 of the tool towards the workpiece placed on the lower part 10 of the tool. The liquid from the cavities of the cylinders 7 is displaced through pipelines 29 and 30 into the rod end of the cylinders 10, then the quick-acting valves 27 and 28 are closed and the quick-acting valves 33, 34, 37 and 38 are simultaneously unlocked. 35 and 36 with great speed enters the cavity of the working cylinder 4 above the partition 6, acceleration of the plungers 5 and the traverse 3. In this case the tool, reaching the workpiece, deforms it. When the traverse is slowed down during deformation, a hydraulic shock is formed in cms1 4 and pipelines 35 and 36, which is an additional source of energy for deformation. Then valves 33 and 34 are closed-. It happens and the slider moves up. At the same time, the liquid from the rod end of the cylinder 16 is displaced through pipelines 29 and 30 in the cavity of the return cylinder 7, by raising the plungers 8 to the yoke 3 with the plungers 5 and partitions 6. The liquid from the cavities of the cylinder 4 through the pipelines 25, 26, 35 and 36 is displaced In the cavity of the cylinder 24 upward, the valves 37 and 38 are closed and the process is repeated.

The number of pulses per unit of time and the performance of the device are determined by the speed of the slide 24 and can be much larger than for the device with a pump-accumulator drive.

The economic effect of implementing the invention is achieved by increasing productivity.

ft / 1 .2

25

25

0 2 Fig: 5

Compiled by E.Skladchikov Editor N.Gorvat Tekhred o.NeceKorrektor G.Reshetnik

Order 8459/9 Circulation 646 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

Claims (1)

DEVICE FOR PROCESSING MATERIALS BY PRESSURE, comprising a crosshead mounted on the guides of the bed, an actuator with working and return cavities, an instrument, actuator and pipeline with a quick-acting valve fixed to the table of the bed, to the traverse, characterized in that, in order to increase productivity, it is equipped with an additional a bed with a table, a drive slider, a body mounted on the table of the additional bed with plunger cylinders of the traverse approach stroke placed in it, each with a spring-loaded bottom, two piston cylinders and two plunger cylinders-accumulators, additional quick-acting valves, plungers and piston rods are fixed to the drive slider, working cavities of the executive device are connected via quick-acting valves with cavities of the traverse approach cylinder cylinders and with the cylinder-accumulator cavities, return the cavities of the actuator are connected to the rod cavities of the piston cylinders and, through high-speed valves, to their piston cavities holes, and the pairs of approach stroke cylinders, accumulator cylinders and piston cylinders are mounted symmetrically with respect to the axis of the slider; >