SU14807A1 - Machine for pressing plates from loose building materials - Google Patents

Description

The main patent No. 13771 describes a machine for pressing plates of loose materials, consisting of a stand serving as a support for squeezing between boards of materials, a bottomless box (flask) and a bar with a pressing part suspended from talts and mounted on two screws and nuts.

For the purpose of pressing construction plates of loose, highly compressible materials, in the proposed machine, screws are used, which with their nuts directly on the end walls of the flask, the transverse bars, which transmit this pressure to the upper pressing board and levers used to lift the flasks.

In the drawing of Fig 1 depicts a longitudinal section of the machine; FIG. 2 is a cross-section of it; FIG. 3 is a top view thereof and FIG. 4 - change the details of the machine.

The machine consists of a crate (flask) without a bottom and a flap that slides over the piston 2, located below and fastened to the bar 6. Above the crate, bars 3 are attached, fastened with the box, on the one hand, with hinges 4, on the other, with overlays like the chest boxes 5a, which are put on the eyelet 56 during pressing. Before pressing, the plates 5a are removed from the ears and the bars 3 are folded back. The lower pressing board 9a is superimposed on the piston, and the weight 8 for the plate, which is covered from above by the upper pressing board 7. The two screws 10 are fastened through the two opposite walls of the box, which are fastened to the lower beam 6. The screws 11 are fitted with handles. Ball bearings are placed under each nut to reduce the friction of the nut against the washer. A lining 13 is placed under the support bearing in order to enable the first moment of pressing the pressed plate to rotate the nuts with their handles; for this purpose they must be raised above the top of the machine. After pressing, the set in the form of two press boards 7 and 9 and a pressed mass 8 is clamped with clips 18, which even before pressing are laid from the inside in its side walls in the places prepared for them- For this purpose, in the walls of the box, in its upper part, by size staples are made slots 19. The staples have on top of a square section a spike 20, which can

put on the socket key in the form of a lever, which increases the shoulder of the ab-bracket in case the clamp is braked at certain points when turning it. For raising and lowering the machine to the box 1, in the lower part of it, on the axis 15, levers 14 are arranged, having rollers 16 at their ends, which are floating along the rails 17. The upper half of the lever is made folding-hinged or attached-in the form, e.g. a pipe fitted onto the upper short end of the lever. The guide 17 in the form of a smooth curve has as its purpose a reduction in the effort required to apply to the levers at the first moment of lifting the machine, since at that moment — the moment of greatest effort — the roller will roll along an inclined plane. The pressing process on this machine is as follows.

Bearing 1 with the help of levers 14 is placed in a position where its lower part is almost aligned with the upper piston area; At this moment, the chapok stands on its levers, like on legs. In the flask, 19 brackets 18 are put in their places and then successively are laid: the lower pressing board 9, weight 8 and the upper board 7. At this time, the bars 3 are in the reclined position on the hinges. After the application of the mass and milking, the bars are superimposed on the crate and locked with overlays 5a. By turning the nuts 11, the box goes down and Compresses weight 8 until the boards 7 and 9 are close enough so that they can be put on by turning 9 (f, staples 18. After applying the staples, the plates 5a of bars 3 are removed the ears 56, and the bars 3 otki-.: are given.

Then, the nuts are rotated again, thereby lowering the flask down and squeezing the commatiCKT out of the flask in this way. Kit is squeezed

using screws and nuts incompletely, since the handles of the nuts, when rotated at some point, will touch the squeezed set; but at this time, when a part of the kit had already left the press, the weight of the crate and the workers' small efforts were enough to lower the crate to the bottom of the piston.

FIG. Figure 4 shows another method of fastening the press boards with the aid of crutches 21 having lugs 22, in which the valves 23 are fastened to the upper press board. The crutch is inserted into the bracket 24 attached to the lower press board; this crutch rises together with the lower press board during the pressing until it is possible to slide the latch into the ear.

The subject of the patent.

1.Varification of the machine described in patent No. 13771, characterized in that the nuts of the screws 10 are pressurized by means of washers with balls 12 and gaskets 13 directly onto the end walls of the flask 1, and transverse bars 3.3, pivotally fastened to one of the longitudinal walls of the flask 1 and fastened to its other longitudinal wall with the help of linings 5a, and to raise the flasks, the arms 14 are hinged to its end walls with rollers 16 rolling in rounded depressions the grounds 6

2. In the case of the machine tool of Clause 1, a modification of the device of the clamping brackets 20, characterized in that with the clamp 21 only the lower end is bent inserted into the bracket 24 of the lower press board, the upper end has an opening 22 for the valve 23 located on the upper press board.