SU66486A1 - Device for removing and removing asbestos-cement sheets from a centrifugal-forming drum - Google Patents

Description

The invention relates to the manufacture of products from asbestos cement and relates to devices for removing and removing asbestos cement sheets from a centrifugally forming drum.

Distinctive feature

The proposed device is that it uses a cylindrical rolling pin rotating from the floor, inserted into the drum cavity, having a longitudinal slit and attached to a vacuum pump in order to suck the cut-off sheet and screw it onto the rolling pin. ,:;

In the drawing, FIG. 1 schematically shows a general view of a machine for the manufacture of asbestos cement sheets by centrifuging, and FIG. 2 shows a portion of a drum at the installation site of a device for cutting a formed sheet; FIG. 3 shows a section along the /// - HI line in FIG. 2; fit 4 schematically depicts a device for removing and removing asbestos cement sheets from a drum of a mashina, FIG. along arrow V in FIG. four.

On the foundation slab 1 there are fastened the skid 2, between which

The bed 3 and two movable beds 4 and 5 are fixedly fixed on the bed 5, the main bearings of the working shaft and fur are installed; the brake is on the bed 6. The bed 4 has a bearing that can move along the bed along the shaft 7; In addition to the frame, the rear crush 8 of the drum is movably fixed, which together with the frame can move reciprocating along the working shaft 7, and the collecting cover 9 with the water inlet 10 is tightly fixed. The bed 5, also mobile, has a bearing for the front cover S and a water collection casing 9 with WATER 11.11. W pipe. On the top of the runners 2 beds are laid rails // on which platform 12 can walk, carrying a reel 14 on rollers 13. The movement of the platform and rollers can be carried out from the motor mechanism 15, mounted about under the platform. The sliding and sliding of the movable beds 4-5 is carried out by rotating a screw 16 having a right and left thread.

The drum 14 can be clamped between the covers 8 by means of a coupling and teeth on the extreme bandages P of the drum and internal teeth on the rims of the covers S.

Inside the drum 14 there is a groove cut out in the shape of a dovetail, into which a flexible steel plank 18 (Fig. 2 and 3) is inserted flush with the surface of the drum. A hook-shaped Iozh 19 is fastened at one end of the strap (at the front cover), and a ring 20 is fastened at the other end to pull the strap during cutting of a sheet of raw slate 21.

The device for removal of the made raw asbestos cement sheet is a tubular rolling pin 22 (Fig. 4 and 5), along which an 8-10 mm wide slot is cut, covered with a copper mesh No. 60-70. The rolling pin can freely rotate on the rod 23 provided with a toothed rack. The reciprocating motion of the rolling pin produces a gear mechanism 24, and a vertical movement (raising and lowering) the mechanism 25. The unloading device includes a small vacuum pump 26 connected by a flexible hose to the rolling pin 22, and an electric motor 27 driving the whole movement mechanism. tubular rolling pin and vacuum pump. The entire device can rotate around its axis on the bolster 28.

When the machine is running, rotating the screw 16 clamp the drum 14 between the covers 8. The rollers IS are lowered down, freeing the drum for rotation. A feeder is inserted into the throat of the front cover and the drum is rotated. The feeder loads asbestos-cement mass inside the drum. The drum is rotated to the maximum speed. At the time of maximum speed, and consequently, of the maximum centrifugal force, the valves of the drum covers are opened. The opening of the valves takes place from the center to the circumference, as a result of which only the clean, otugovovanny water is thrown out through them, without entraining cement and asbestos.

At the end of the fugging, the drum is stopped by the brake b. .

By stopping the spring drum. the valves automatically return the drained water from the drum to their original position (from the circumference to the center) and close them again for the next loading cycle. At the same time, the rollers of the platform 12 automatically rise, abutting against the bedside 29, and the beds 4 and 5 are dispensed, freeing the drum for unloading.

The platform is moved, feeds the drums for unloading, and at the same time places a second, free, drum between the lids to repeat the cycle of manufacturing the desired slate sheet.

After that, the worker at the drum filed for unloading grabs the hook behind (RING 20 and, quickly drawing the bar 18 out of the socket, with a knife 19 cuts the raw asbestos cement sheet 21.

Rolling pin 22 (FIGS. 4 and 5) by mechanism 24 is fed into the inside of the cage and mechanism 25 is lowered until the grid of the slit 30 contacts the edge of the cut sheet. Naooos 21, cutting the air inside the rolling pin 22, causes the sheet edge to adhere to the grid of the slit. The rollers 13 of the platform 12 begin to rotate the drum, winding the sheet on the rolling pin.

As soon as the sheet is wound, the rolling pin, receiving a reverse movement, takes the sheet out of the drum and feeds it onto the conveyor.

A roll bar is inserted into the drum and HE is ready to repeat the next sheet production cycle.

Subject invention

A device for removing and removing asbestos cement sheets from a centrifugally-forming drum, characterized by using a rotating hollow cylindrical rolling pin 22 inserted into the drum cavity, having a longitudinal slit 30 and attached to a vacuum pump 26, in order to suck the cut sheet and roll it onto the rolling pin.