SU937153A1 - Form for producing prestressed building products - Google Patents

Description

(54) FORM FOR MANUFACTURING PRE-STRESSED CONSTRUCTION PRODUCTS

one

The invention relates to equipment for the manufacture of pre-stressed building products in the production of precast concrete.

A known form for the manufacture of reinforced concrete products, comprising a pallet, with which the working face boards are hinged, mounted on adjustable connections, end stop panels and stop elements 1.

However, the design of the form does not allow for the manufacture of prestressed products in it, the need for tearing off during the removal of the entire area of the stop panels requires considerable effort and tightening of the connecting elements.

Also known is a trolley for the manufacture of prestressed building products, comprising a power pallet with fixed supports for prestressing reinforcement and dies, flaps, hingedly connected to the pallet, sealing elements and means for adjusting their clamping to the joints of form 2.

However, the form can not ensure the accuracy of the geometric dimensions of products.

The purpose of the invention is to provide the possibility of forming articles with reinforcement located along the perimeter, reducing labor intensity and improving the quality of products.

The goal is achieved by the fact that the form for the manufacture of prestressed building products, containing a power pallet with rests for tensioned reinforcement, longitudinal and end flanges, pivotally connected to the pallet, is provided with pivot trajectories mounted on the pallet with adjustable screw rods connected by means of helical hinges with end faces made in the form of stop plates with slots under tensioned reinforcement.

FIG. 1 depicts an imitation form.

is the appearance of prestressed building products, a plan view; in fig. 2 shows section A-A in FIG. 1, face board in working position; in fig. 3 - the same, face board in the open position; in fig. 4 - section BB

20 in FIG. one; on fi-g. 5 shows a section B-B in FIG. one; in fig. 6 - section G-Y in FIG. I.

Claims (2)

The form for the manufacture of prestressed builders consists of a power pallet 1, on which the supports 2 for reinforcement 3 are rigidly fixed. In the lower part, the stops 2 are provided with limiters 4. In addition, the formers 5 and traversal hinges 6 are mounted on the pallet 6. End boards 8 are made in the form of stop plates, in which vertical grooves 9 are made around the perimeter of the product to stir, preload valves 3. Each end board 8 is connected by means of vertical hinges 10, with at least two adjustable 2. The latter are mounted in traverse 7 and are limited to stop 12 and lock nuts 13. The traverses are equipped with handles 14. The longitudinal flanges 15 are hinged to the pallet 1, and the front 8 and longitudinal 15 flanges are connected with locks 16. 11 when turning the end boards 8 in the pan, the windows 17i are made. The form works as follows. To dismantle the products, it is necessary to open the locks 16 to fold the longitudinal sides 15, to release the lock nuts 13 and with the help of stop nuts 12 to tear off one side of the front side 8 from the product by a small amount (30-40 mm). In this case, the thrust shield (face 8) behaves as a flexible side, which facilitates the process of stripping. The gap formed between the end face 8 and the product is necessary for trimming the reinforcement flush with the product. After trimming the reinforcement 3 with the aid of the handle 14, the end flange 8 is rotated by 95-100 ° and the finished product is removed from the mold. The mold is cleaned and lubricated, the longitudinal beads 15 are installed in the working position and installed in the stops 2 up to the limiters 4 the lower row of the armature 3. Then the end beads 8 are rotated into the working polo; . The upper row of reinforcement 3 is pushed all the way into the grooves 9, made in the face boards 8, and the locks 16 are closed. The mold is ready for concreting. Due to the presence in the stops 2 of the stops 4 and the vertical grooves 9 in the end flanges 8, the reinforcement 3 is accurately fixed in height and the width of the product. The high accuracy of the geometrical dimensions of the products is also ensured by the presence of adjustable tons of g 11 and the execution of the end beads 8 in the form of thrust shields, which, with the help of lock nuts 13, are placed in the design position close to the fascifier. 5. The presence of tg 11 and stop plates 8, stop nuts 12 and the connection of tg with shields by vertical hinges ensures easy separation of the end boards from the product, simplifies the process of trimming the reinforcement and, as a result, facilitates the process of dismantling products. The proposed mold implementation makes it possible to manufacture products with its reinforcement, placed around the perimeter, for example, lengthy pre-stressed panels 12 1.8 m, improves the operational reliability of the form, simplifies its maintenance and reduces labor costs in the manufacture of reinforced concrete pre-stressed products. Claim form for the manufacture of prestressed building products, containing a power pallet with rests for tensioned reinforcement, longitudinal and end boards hinged to the pallet m, characterized in that, in order to ensure the possibility of forming articles with reinforcement located along the perimeter , reducing labor-intensiveness and improving the quality of products, it is equipped with pivotal traverses mounted on a pallet with adjustable screw rods connected by means of vertical hinges to the front sides, made in the form of stop plates with slots under the tensioned reinforcement. Sources of information taken into account in the examination 1. USSR author's certificate number 499116, cl. B 28 B 7/02, 1972. 2. USSR author's certificate number 655540, cl. B 28 B 7/02, 1977. / / 2 7  ./f/ 3 / / 7 j v f 5 /ABOUT (Y O5k / g. f (-K / 15 ...... u Fx FIG. five Do- / / J / T7 / 2 7 / / V.e FIG. 6