SU12211A1 - Box form for presses used for the manufacture of artificial stones - Google Patents

Description

The present invention, in terms of the form of presses for presses used for the manufacture of artificial stones with inserted transverse partitions and longitudinal liners between them, is intended to prevent the form walls from moving apart during the pressing of the mass by means of partitions having a swallow-tail shape and entering in the corresponding grooves of the walls of the form; in order to prevent wear of the mold itself, in the latter strip of sheet metal was used.

In FIG. 1 shows a view of a press table from above; FIG. 2 is a section along line A-5 in FIG. one; FIG. 3 is a sectional view along line S-D in FIG. one; FIG. 4 is a side view of the partition; FIG. FIG. 5- cross section of the press table; FIG. 6 is a top view of a press table equipped with interchangeable gaskets; FIG. 7 is a section taken along the line -F in FIG. 6; FIG. 8 is a section along the line G - // in FIG. 6; FIG. 9- replaceable gasket for the transverse walls of the molding opening; FIG. 10-replaceable gasket for the longitudinal walls of the molding holes;

FIG. 11- liner; FIG. 12 is a top view of the press table with a modification of the shape of the molding box; FIG. 13 is a section along the line of FIG. 12; FIG. 14 is a section along the line —A to FIG. 12. FIG. 15 is a top view of the press table, with a modification of the shape; FIG. 16 is a top view of a press table having transverse walls of a molding hole | and located at a certain angle to the longitudinal walls of the molding box; FIG. 17 is a top view of the press table with another modification of the shape of the forming box; FIG. 18 is a section through the press table with the molding box, along the N-O line in FIG. 17; FIG. 19 is a section along the P-Q line in FIG. FIG. 20 is a sectional view taken along line in FIG. 17

Four partition walls 3 are placed between the side walls 1 and 2 of the press table, so that three molding openings are formed. The side walls 1 and 2 are provided on the inside, having the shape of a dovetail, with grooves 4 and 5, which include their projections 6 of the partition 3. Each pair of partitions 3 is held at a corresponding distance by the molding opening, by means of the side walls 1 embedded in the slots and 2 liners 7. FIG. 3, the liners 7 completely fill the parts of the grooves located between the transverse walls, so that the surfaces of the liners turned to the molding openings together with the inner surfaces of the side walls above and below the grooves form the narrow sides of the molding openings.

Between the side walls 1 and 2, at their ends, spacers 8 and 9 are inserted, to which the side walls are drawn by means of screws 10 and 11 arranged in pairs. Spacers 8 and 9 each have two threaded holes, into which two bolts 12 and 13 are screwed ; the latter press on the extreme partitions 3 and, consequently, firmly squeeze all the partitions and liners placed between them. When pressing bricks, acting perpendicular to the partitions 3, the forces are perceived by bolts 12 and 13 n through struts 8 and 9 are transmitted to the side walls 1 and 2.

By using longer and shorter partitions, the width of the molding holes can be changed. If it is necessary to reduce the length of the molding holes, then the liners 14 (Fig. 5), which have a thickened wall facing the inside of the molding hole, are used. This thickening is distributed over the entire length of the molding hole. The said grooved sidewalls 1 and 2, which are provided with grooves, are protected from wear resulting from the friction of the forming mass.

To prevent wear of the slit-like walls and partitions, gaskets made of tin 15 and 16 are applied (Fig. 7 and 10). The side walls of the press table can in this case be provided with longitudinal grooves of rectangular section, into which the partitions 3 provided with corresponding protrusions 17 are inserted. in the same way as the corresponding liners 18. The gaskets of tin 15 that are adjacent to the partitions are also provided with rectangular projections 19 corresponding to the shape of the grooves, and their length is longer than the depth of the grooves. Gaskets 15 adjacent to the partitions are placed adjacent sidewalls of the gaskets 16. Spacers 16 are provided at both their longitudinal edges with cutouts 20 into which the protrusions 19 of the gaskets 15 enter. Part of the grooves of the side walls 1 and 2 behind the gaskets 16 are filled with inserts 18. The rest of the device shown in FIG. 6-10 of the press corresponds to the device shown in FIG. 1-3,

A change in the width of the molding holes can be made by a corresponding change in the mutual distance of the partitions, at which time, respectively, narrower or wider inserts and pads of tin should be applied.

In the depicted in FIG. 12 through 14 forms of the molding holes are not placed directly in the pressing table, but in a special molding box, which is seated in a frame 23 fixed between the cylinders 21 and 22. The frame is provided with a round hole. The molding box corresponding to this opening is formed by side-shaped walls 1 and 2 having circular segments, between which to clamp; the partitions 3 holding the walls 1 and 2 are at such a distance from each other that their circular parts form a regular circle. The round molding box thus obtained is pushed into the frame 23 from the bottom. The side walls 1 and 2 are provided on the underside with protruding flanges 24, 25 that fit to the frame 23 from the bottom. Through the flanges 24 and 25, screws 26 are held in the frame 23 to hold the injected molding box . Since during the pressing process itself, the compressive forces produced by the lower and upper punches are mutually destroyed, screws 26 are not stressed. When pushing the finished products with lower punches, the resulting upward forces through the flanges 24 and 25 are transferred to the frame 23, which from its side is connected with the upper and lower cylinders 21 and 22 of the press through the pads 27. The device of the molding box otherwise fully corresponds to the device described according to FIG. 6-11. The change in the size of the molding holes: it can be done, as described above, by using respectively thicker or thin partitions and liners.

FIG. 15 depicts a modified molding box having a circular shape and provided with partitions 3 set at a certain angle.

With this arrangement, rigid pads 15 and 16 of appropriate size can also be used.

In FIG. 16 in the form of the box 3, the partitions 3 are placed alternately at a certain angle and perpendicular to the side, walls.

FIG. 17 and 20 depict the shape of the case in which not only the length of the molding holes can be changed, but also the distance itself between the side walls varies over a wide range.

In such a press, the press table consists of two pairs of frame parts 29 and 30, which form a right angle between them. One pair of frame parts 29 is fixedly mounted on four support columns 31 of the press, while the other two frame parts 30 are detachably connected to the frame parts 29. The plug connection is carried out by means of bolts 32 (Fig. 20).

The inner sides of the fixed-frame parts 29 which are fixed to the columns 31 each have a slot. The protrusions 33 of the side walls 1 and 2 of the molding box enter into these grooves in such a way that they have a longitudinal movement along the grooves. Pressure screws 34 or 36 abut against the detachable frame parts 29 of the pressing table abut against the rear side of the adjustable side walls.

The molding holes are formed, as described above, on one side with partitions 3, moved in the longitudinal grooves of the side walls 1 and 2, and on the other side through inserts overlapping the slots in the side walls 1 and 2 and, at the same time, defining the distance between the partitions 3 under pressure of the set screws 36 placed in the frame parts 29.

In FIG. 17-19, the mold box is adapted to be made every time.

only one pair of large bricks. By mutually approaching or removing the movable side walls 1 and 2, produced by moving the grub screws 35 and 34 and inserting partitions of a respective length, different lengths can be made to the molding holes, Since the width of each molding hole can be changed by selecting the appropriate liners, This form of construction of a crate consisting of many parts makes it possible to manufacture artificial stones of various lengths and widths on the same press.

When the mold box is removed, the bolts 32 are removed from the table and the frame parts 30 of the press table are removed.

The subject of the patent.

1. Box shape for presses used for the manufacture of artificial stones, with inserted transverse partitions and longitudinal liners between them, characterized in that the partitions 3 are provided with protrusions 6 inserted into the longitudinal pairs of walls 1, 2 forms, and the intervals in the slots between the marked the protrusions are filled with liners 7 flush with the inner surface of the longitudinal walls 1 and 2 (Fig. 1-5).

2. In the form according to p. 1, the use of tin pads in order to eliminate wear of the form itself, characterized in that the gaskets 15 adjacent to the transverse walls have protrusions 19 which enter the grooves of the longitudinal walls 1, 2 through the notches 20 in the longitudinal pads 16 ( Fig. 6-11).

3. The shape change according to p. 1 - 2, characterized in that its longitudinal walls 1, 2 are made in the form of two cylindrical segments and 3 round central opening of the pressing table are inserted (Fig. 12, 13 and 15).

4. The shape change according to p. 1-2, characterized in that the surrounding frame is formed of four split parts connected to 29, 30 and longitudinal walls 1, 2 of the form, provided with grooves for the transverse walls 3, 3 and liners 16. Movably fixed in the slots of two, perpendicular to them, stationary parts 29 of the frame (Fig. 17 and 18).