SU1260107A1 - Complex mechanized line for making castings - Google Patents

Description

1260

The invention relates to mechanical engineering, to foundry.

The purpose of the invention is to save molding material and increase productivity.

FIG. I presents the proposed line, a general view; in fig. 2 - section aa on fig o K

The complex-mechanized casting production line contains silos 1 with fresh dry sand, connected via a disk feeder 2, a belt conveyor 3 with a chamber pump 4, pipeline 5 connects the chamber pump 4 with the dischargers 6 of the receiving hopper 7. Bunker 8 through a psuch feeder 9 and a chamber pump 10 by pipe 11 is connected to a receiving hopper 12 of regenerated sand. Disk feeders 13 are installed under the receiving bunkers 7 and 12. The receiving bunkers 7 and 12 are located above the unit 14 for preparing the stubble mixture and the units 15 for making the rods. At the end of the pivotal line, a crane-manipulator 16 is connected to the pallets 17 of the transport calf-shelf 18, which along the track 19 are connected with the through-pass dryer 20 and further to the automated high-rise store 21 and the unloader 22. The crane-stacker 23, mounted between the racks of the high-rise storage device 24, is connected to the stack carriages 18, the rail track 19 connects the dischargers 25 and the molding lines. An installation 26 for preparing the mixture, a molding machine 27, a transfer device 28, a transfer device 29, a collection of forms 30, a rotary-extracting machine 31 are installed on the molding line. An operator crane 32 installed on the molding line is connected to pallets 17 of trolleys 18. Line also contains the installation of 33 molds. The knock-off grates 34 along the belt conveyor 35 are connected to the XTC thermal regeneration unit 36, which is connected to the regenerated sand tank 12 and the rods 15 units via the chamber pump 10 and the pipeline 11. Transport system 37 is designed for cleaning requested.

Lini works as follows. Fresh dry sand from silos 1 through a disk feeder 2 and lentosh

five

0 - 5 0 5 0 5

107, 2 conveyor 3 enters the room. pump 4. From the chamber pump 4 compressed air sand is transported through pipeline 5 to the unloader 6 of the receiving bin 7. Reclaimed sand from the bunker 8 through the sluice feeder 9 enters the chamber pump 10, then with compressed air is transported through pipeline 1 to the unloader 6 of the receiver bunker 12 regenerated sand.

From the receiving bins 1 and 12, fresh and regenerated sand with disc feeders 13 is metered to unit 14 for preparing the core mixture. The finished painted rods with a crane-manipulator 16 are completed and stowed onto three pallets 17 of a transport carriage 18. Then the rods along the track 19 are fed to the through-drier 20. After drying, the rods on the carriages 18 are transferred to the automated height elevator of rods 21 to the unloader 22, where the pallets I7 with the rods are removed from the transport trolley 8 by an automated stacker crane 23 and placed in racks 24 of the hundredth drive 21.

As required, the pallets 17 with rods by stacker crane 23 from the racks 24 are mounted on the transport cart 18 at the unloading unit 25 and then transported to the front lines, where the crane operator 32 large rods are removed from the pallets 17 of the transport cart-shelf 18 and into the mold half molding lines. After knocking out the core and the molding mixture, the belt conveyor system 35 is transported to the XTC thermal regeneration unit 36.

The cycle is repeated.

The increase in productivity and economy of the molding material is obtained by installing the equipment in a technological sequence that ensures a closed cycle, in which the influx of fresh material is not obstructed. This is provided by a thermal regeneration unit, where the preliminary grinding by the burner of the molding mixture is carried out, followed by burning out of the resin from it, and sifting the resulting sand. The regenerated sand is returned to production again, and the process is repeated many times. Inflow of fresh material (sand)

in the amount of 1-2% is needed to compensate for losses due to spills and natural losses during transportation.

 Sch 15

36

fb jb i.-

Aa

-eleven

X

Yu

Editor E. Sligan

(put. 2

Compiled by N. Romashov Tehred L. Serdyukov and Proofreader M. Sharoshi

5164/7

Circulation 757 Subscription VNIIPI USSR State Committee

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

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

COMPLEX-MECHANIZED CASTING MANUFACTURING LINE containing related transport system? mine and a molding mixture preparation unit, molding machines for making molds, a transfer device, a mold switcher, a mold collector, a rotary drawing machine, and a knockout grill installed in the technological sequence, characterized in that it is equipped with an installation in order to save molding material the preparation of the core mixture, the installation of the manufacture of the rods, rack storage, transport system for cleaning spills and a device for mechanical thermal oh regeneration molding material related pneumatic systems, and cooking installations the rod and the molding mixtures. SU, 1260107>