SU1609652A1 - Press - Google Patents

Description

The invention relates to construction and can be used to make bricks from ceramic masses.

The purpose of the invention is to improve the quality of products and press performance.

FIG. 1 shows the proposed press; in fig. 2 shows section A-A in FIG. one,

The press contains a frame 1, a feed hopper 2, the casing of which is hingedly connected to the frame 1, a forming inner drum 3, side discs 4, the working surface of each of which is made in the form of a truncated cone, a fixed arc bracket 5 placed by the disk 4 along the arc 180 and forming with the surfaces of the drum 3 and the disks 4 a chamber 6 of pressing of variable section, dimensions

B and H at the entrance which is larger than the sizes b and h at the exit.

The disks 4 are set eccentrically with respect to the drum 3 in such a manner that their axes of rotation are at an angle to the axis of rotation of the drum, equal to the angle of taper of the working surface of the disks about. In this case, the axes of rotation of the side discs intersect in a plane perpendicular to the axis of the drum. The side surfaces of the drum 3 and the mating surfaces of the side discs 4 are made spherical with a radius of conjugation spheres R and a center located at the intersection point of the axes of rotation of the corresponding disc and drum ;. The spherical surfaces of the disks 4 at the entrance of the pressing chamber 6 (Fig. 2, size B) are removed from contact with the spherical surfaces, the drill 3, and at the output of the camera 6

but about with

05

ate

Yu

(FIG 2, size b) completely mutually overlap.

The bunker .2 is connected to the pressure sensor 7 of the control system of the molding material preparation line (not shown), and the bottom of the bunker is designed as a lever 8, hinged to the hopper body. One of the levers is pressed with a spring P to the limit switch 10 of the Press drive. The bunker is equipped with an adjusting bind 11 to limit the angle of the turn of the bottom, and a bunker 12 is attached to the bunker.

And the kinematic connection of the discs 4 with a rarabane 3 is carried out with the help of bushing 13, in the bores of which bearings are mounted 14, bearing the input shaft 15 of drum 3, the bearings 16 are mounted on the outer surface of the bushing 13; 1, which is also fixed to the bracket 5, if necessary to a hollow. 17 "holders can be placed on the disks 4. The drive gears 18 are mounted. In the lower part of the frame 1 there is a removable knife 19, the working surface of which is adjacent to the forming surface. drum 3, i Press, works as follows, i; The forming inner drum 3 and the rim disks 4 are driven in rotation through the drive shaft 15 and drive gears 18. In this case, the shaft .15 installed in the bearings 14 grows in the bores of the sleeves 13, and the disks 4 rotate in the bearings 16 relative to the outer cylindrical the surfaces of each of the sleeves 13, which are located on the axis of the bore and, therefore, the axis of the drum at an angle about,

The ceramic mass, entering from the hopper 2 into the pressing chamber 6, is entrained by moving the surfaces of the drum and the disks to the exit of the pressing chamber 6. The mass is subjected to volumetric pressing; both by reducing the height of the chamber jOT H to h, and by reducing its width from B to b, which ensures a uniform compaction of the mass along the cross

S

0 5 о ц

5 n

five

Nomu section formable timber. As a result of the snug fit of the spherical surfaces of the discs 4 to the corresponding surfaces of the drum 3, the possibility of solid inclusions in the moldable mass between them and the occurrence of an emergency for this reason are excluded. In order to install the hollow cores 17 by the bracket 5 in the exit zone of the pressing chamber, a bar can be obtained.

The removal of the finished timber from the pressing chamber B is provided by means of a removable knife 19 mounted at its exit. The removal of the beam is facilitated and the surface defects on its side edges are reduced, since in the knife area the distance between the working surfaces of the discs increases and, consequently, the mass adhesion with them decreases.

During the operation of the press, fluctuations in the productivity of the technological line for the preparation of the molding material and occasional shutdowns are possible.

The stabilization of the pressing regime is carried out as follows. In the presence in the hopper 2 ceramic mass injection roller .12, realized. pre-pressing the mass, presses the bottom .8 against the forming surface of the drum 3. Under the action of this pressure, the cylinder turns, overcoming the force of the spring 9, and releases the normally closed end valve 10, which gives the command to activate the press drive. When there is no mass in the hopper 2, the spring 9 presses the shoulder of the bottom 8, and the press is turned off,

The press provides adjustment of the degree of compaction of the timber in the pressing chamber 6, which can be done by changing the height H at the chamber entrance with the help of an adjusting screw 1 1 "

When the hopper 2 overflows, its body, turning relative to frame 1, acts on pressure sensor 7, which gives a command to turn off the line for preparing the molding material.

1

17

FIG. 2

Claims (2)

(57.) PRESS containing a feed’s hopper forming an inner drum 2 side disks mounted eccentrically with respect to the inner drum, and an arc bracket placed between the side disks, forming a pressing chamber of variable cross section with the surfaces of the inner drum and side disks, characterized in that, in order to increase the ka. quality of products and press performance, the working surface of each side disk is made in the form of a truncated cone, the axis of rotation of which • is located relative to the axis of rotation of the inner drum at an angle equal to the taper angle of the working surface of the side disk.