SU1646869A1 - Unit for manufacture of compacted building materials out of concrete mixes - Google Patents

Abstract

The invention relates to the building materials industry and can be used in the manufacture of building products from concrete mixtures. The purpose of the invention is to improve product quality and productivity. A device for pressing building products from concrete mixtures contains a hopper feeder 1, a turntable with molds 3 in which dies are installed, a pressing mechanism and a guide for moving dies. The pressing mechanism is made in the form of a driving sector in which radially pressing rollers 9 are installed, equipped with a drive for reciprocating and rotating movement about their axis. The stamps are made in the form of plunger-pallets 4 with rods 5 equipped with rollers 6 supported on the direction of movement of the dies in the form of a circular closed circuit 7 with shaped sections for lowering the plungers during the process of filling the mold and lifting them during Press forms. 3 il. Ј4 cl С / 5 / ш / 15 о 4Ь О О) О О V

Description

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The invention relates to the building materials industry and can be used in the manufacture of building products from concrete mixtures by the method of pressing.

The purpose of the invention is to improve product quality and productivity.

FIG. 1 shows a pressing device; general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 - pressing steps.

A device for pressing building products from concrete mixtures contains a movable hopper feeder 1. a pressing mechanism, a rotary table 2 with molds 3, in which dies are installed, made in the form of pallets 4 with rods 5 equipped with rollers 6 at their free ends based on the die travel guide made in circular circular closed loop circuit 7 with profiled sections for lowering the plungers 4 in the process of filling the mold and lifting the plungers 4 in the process of pressing an) and ejecting first from the mold. The pressing mechanism is made in the form of a driving sector 8, in which the pressing rollers 9 are installed radially. The rollers are mounted in bearings, which ensures rolling-over of the rollers 9 without accumulation on the surface of the pressed product.

On the osm of the pressing rollers are fixed bevel gears 10. meshed with the rail 11 mounted on the column 12 passing through the center of the table 2. The diameter of the gears 10 ensures equality of the linear speeds of the pressing rollers and the sector of the pressing rollers, which eliminates the sliding of the rollers on the surface of the products . The pressing rollers sector has a reciprocating movement around the column 12 from the connecting rod 13 of the crank drive mechanism 14. Table 2 with forms 3 rigidly attached to it with guide sleeves 15 and plungers 4 moving inside the mold under the action of the rod 5 connected to the axis of the roller 6, is supported on the supporting rollers 16 and has a circular motion from a gear drive including a gear ring (gear ring) 17 and gear block 18. The rollers 6 are supported on a closed loop 7.

The device works as follows.

The mixture from the feed hopper 1 is molded continuously into the mold 3 of the table 2, which from a gear drive 17-18 with the required speed performs a circular motion, moving the mold under

pressing roller 9 sector 8 pressing rollers. During this period, the rod 5 with the roller 6 resting on the corresponding section of the circuit 7 ensures that the plunger is in the lowest position, i.e. at the bottom of the form.

Together with sector 8 pressing rollers, which makes a reciprocating motion at a certain angle

0 around the column 12 from the crank rod 13, the pressing roller 9, installed radially in the bearings, makes a reciprocating motion and rotational movement around its own axis in the direction of movement of the press roller sector from the gear drive (gear rack 11 and gear 10), providing one-sided layer-by-layer compaction of the incoming molding sand in form 3, With further “spreading the table 2 due to the inclination of the roller 6 of the rod 5 to the corresponding section of the copier 7, the rod is somewhat Raises the plunger 4, the

5 at the same time ensuring a two-sided compaction of the moldable mixture: on top of the pressing rollers 9, and on the bottom of the plunger 4. Thereby, a higher degree of compaction of the upper and lower layers of the moldable mixture and, accordingly, the quality of the molded product is achieved.

The subsequent circular movement of the table 2 removes the shape of the product from the zone of impact of the pressure rollers, while this section of the circuit 7, when the roller 6 of the rod 5 races over it, ensures that the plunger is at the same level as in the period of two-sided compaction forces rod with

0 plunger to rise up, pushing the product to the level of the upper surface of the form. During this period, it is planned to remove the product, after which the profile of the contour allows the plunger with the stem to be lowered and the position corresponding to the loading of the mold with the molding mixture is lowered. Next, the pressing cycle is repeated.

Claims (1)

Formula image / shadow 0 A device for pressing building products from concrete mixtures, containing a hopper feeder, a rotary table with molds in which stamps are installed, a pressing mechanism and directional movement of the stamps, in order to improve the quality products and productivity, the pressing mechanism is made in the form of a driving sector, with which radially pressing rollers are installed, equipped with a drive for their reciprocating and rotational movements about their axis; ying a plunger pallet with rods, at the free ends provided with rollers, opirayuschimis to guide movement dies made in the form of a circular closed contour with shaped sections for lowering the plungers in the process of filling the mold and lifting them in the process of pressing and pushing the products out of the mold. rrrr