SU810502A1 - Stand line for form-less moulding of ferroconcrete articles - Google Patents

Description

one

The invention relates to the field of the production of building products, namely, bench lines for formless continuous molding, mainly reinforced concrete products, on mechanized long stands.

Poster lines for the molding of reinforced concrete and concrete products are known, containing flat benches and forming mechanisms 1.

The lack of such bench lines lies in the low level of mechanization and concentration of technological processes of production and increased metal consumption of equipment.

The best indicators are characterized by the well-known bench line, which contains flat pallets, the forming unit, which guides the movement of the unit to the technical essence and the achieved result, this line is closest to the invention.

However, the performance and cost-effectiveness of a known line is not high enough, since only one strip of products of limited width is molded in a single pass of the forming unit, and therefore the removal of products per unit of production area is very low.

The purpose of the invention is to increase the productivity and efficiency of the bench line.

This goal is achieved by the fact that in a bench line with flat stands, a forming unit and guides its movement, each of the stands is installed symmetrically, obliquely to the adjacent one, with a prismatic cavity formed between them with a cross section in the shape of a trapezium, on the upper bases of which are mounted forming unit.

FIG. 1 shows a bench line in cross section; in fig. 2 - line section in the plan.

The bench line contains (see Fig. 1) pallet stands 1 (with a sheet covering 2 and heating elements 3), which form interconnecting cavities with a cross section in the form of mating trapeziums, on the bases of which guides of various technological mechanisms are mounted.

For example, on the upper mating bases, the guides 4 of the molding unit 5 are mounted. On the outer surfaces of the stands are molded articles 6, and between the inner surfaces of the benches are formed closed (along the contour of the section) intermediate technological cavities 7 (intended for heat treatment) with guides 8 for moving articles. In the embodiment, the lines in the lower part of the cavity between the external surfaces of the stands can be placed conveyors 9. The products rest on removable side elements 10. The thermal insulation of the cavities can be carried out using removable covers I. The stripping is carried out by means of the movable device 12. The forming unit is equipped the receiving bin 13, the concrete mix loaded by means of the feed 14, and the sealing bodies 15 (the drive conventionally not shown) with elastic stabilizers 16. Sidewalls 17 (see Fig. 1) form surfaces stands feed chutes 18. The expiration of the concrete mix out of these chutes is formed by guide boards 19, the desired length and shape.

If necessary, the stands are equipped with spacers 20 and diaphragm seals 21.

Lini works as follows.

The corresponding pair of adjacent stands is mechanically cleaned and lubricated; side elements, diaphragms, fixtures, fittings, etc. are installed. A concrete mixture of increased rigidity is loaded into the hopper moving from the end along the stands of the forming unit. The unit continuously molds and reserves two bands of products on the two heated external surfaces of this pair of stands.

Upon completion of the molding, this cavity is closed with lids I. Due to the disposition of the molded products, it is permissible to remove them earlier using the device 12 using vertical bars of the side elements 10 of the contour frame. From the end, product lines may be introduced into the cavities 7 of the secondary heat and subsequent processing processes. In this sequence, work is carried out alternately on all pairs of stands. As a result of this design, the lines for each pass of the forming unit are simultaneously molded and processed two bands of products, i.e., the productivity is doubled. The working spaces, volumes and structural elements of the line are used to the maximum. Virtually no restrictions on the width (height) of products. The compactness of the structures of the forming and

conjugated equipment, high level of mechanization and concentration of production processes. Significantly increased removal of products from working areas and reduced labor costs, which in the final

account increases the efficiency of production.

Claims (2)

1. Kolokolnikov V.S. Technologists of concrete and reinforced concrete products. M., 1970, p. 331-342. 2. Patent of the USSR No. 438162, cl. B 28V 1/08, 1971. // A /// V // A / x V 5 5 7 .// / 15 16 lu 20 6 I / /// ///  /. ./ / 77