SU94911A1 - Armature Coiling Device - Google Patents

Description

The introduction of durable prestressed concrete slabs and beams requires industrialized reinforcement on machine tools. At present, a continuous reinforcement method is used in beams, in which the beam cassette, rotating around its own transverse axis, with tension pulls on itself a wire unwound from a VOC, sliding roller. For long beams, it was suggested that the reel should be wound with a roller, o6eraiontej-o, around a fixed cassette.

Finally, it has been proposed to continuously wrap the longitudinal reinforcement of the tubular elements by means of po, gecko, reciprocating it, and a cassette rotating around its longitudinal axis. But all the methods mentioned are not suitable for the reinforcement of slabs.

The device according to the invention is intended for continuous reeling of the reinforcement into spikes in the manufacture of reinforced concrete slabs and the like, preferably tensioned.

The peculiarity of the device is that two carts are used to carry out zigzag wire winding, one of which moves intermittently and carries the cassette with the pegs, and the other moves reciprocatingly in the direction perpendicular to the movement. the first carriage, and carries two blocks, the plane of rotation of which is located iodine at an acute angle to the plane of reinforcement and which serve to feed the jfa wire cassette.

FIG. 1 and 2 depict a wire cassette (side view and axon view); in fig. 3-5 strips with kolkam; in fig. 6 is a diagram of a winding apparatus according to the invention; in fig. 7 device details; in fig. 8 kinematic wire winding scheme.

Prefabricated reinforced reinforced concrete slabs or similar elements on the proposed device are carried out in the following order. The steel cassette pallet is lubricated with a mixture of fuel oil and paraffin, slats with pegs are placed around the perimeter of the pallet, after which the cassette is placed on the trolley. Having fastened the end of the wire on the cassette, it is wound in a zigzag manner, first in one and then in the other direction. Then the cartridge charged with the reinforcement, having a predetermined tension, is directed to the machine for concreting, and from there to the steaming chamber. After the concrete of the slab acquires sufficient strength, the cassette is taken away from the product and re-directed for reinforcement.

The armature is tightened by means of a counterweight, which provides a constant tension with a strictly defined force.

The wire can be pulled completely on the machine; in this case, the counterweight should have a large enough weight. But it is possible on the machine to pull the wire with a small effort (approximately only on / 10 of full tension), which ensures only the uniform tension of the wire. Wire grading in this case should be carried out on another machine, and at the same time all the branches of the wire. The two-step method of tension simplifies the design of the machine.

The cassette consists of a frame 7 (Figs. 1 and 2), a pallet 6 and movable lugs 15, which can move with the help of pushers 16 and bolts 17. Metal plates 3 with pegs 2, which abut the ends of the pallet and attach, are mounted on the perimeter of the pod. To the cassette with several bolts, not shown in the drawing. If the reinforcement is drilled on another machine, the bar of the spikes after the reinforcement is finished abuts the movable stop 15 of the cassette, which for this purpose is moved with the help of bolts 17.

Tuners 2 and strips 5 (Fig. 3, 4, p. 5), joined together by welding, can be either part of box office 110 or part of plate.

In the first case, concreting is performed so that beta ps

seized pegs and strips, and when unleashing a wire, they cut at the ends of the pegs. In this case, the pegs and strips are the inventory part of the cassette (Fig. 4). . In the second stage, the pegs and strips are concreted and are part of the slab (Fig. 5).

A portion of the plank released from the slab allows CTI to be manufactured using electric welding. In addition, in this case, thanks to the good condition of the reinforcement, the demoulding can be carried out much earlier than with the reinforcement of the first method, as well as MOJKHo reduce the brand of concrete slabs.

The device for fitting the reinforcement (Fig. 6 and 7) consists of the trolley 19 on which the blocks 1 and the counterweight 12 are mounted, the coppers for the coil with wire and the trolley 18. The trolley 19 moves the reinforcement from one end of the cassette to the other along the guides 20, calling at the same time for pegs.

The plane of rotation of the blocks is at an acute angle to the plane of the plate (Fig. 7). Such an arrangement of blocks allows them to freely pass between pegs and prevents the wire from jumping off the blocks flange.

The reciprocating movement of the trolley 19 along the guides 20 is carried out using a continuous cable 8, a reverse pulley 9n of the driving unit 10. A wire 5 is passed through the blocks, one end of which is fixed on the cassette. From the blocks 1, the wire goes through the blocks 11 to the counterweight 12, passes through the brake 13 and then goes to the bay, which is freely put on the roller 14. The cassette is placed on the trolley 18, with which it moves along the rails 4 perpendicularly to the trolley 4 19. The movements of both carriages are synchronous and automatic.

The kinematic winding scheme is shown in FIG. 8, which depicts the successive positions of the carriage 19 and the cassette. The cassette moves only when the cart stops in its extreme positions to move in the opposite direction.

The described method can be reinforced with or without prestressing.

Subject invention

A device for winding reinforcement onto anchor pegs in the manufacture of reinforced concrete slabs and similar elements, mainly pre-stressed, characterized in that.

that two trolleys are used for carrying out the zigzag wire winding, one of which moves intermittently and carries a cassette with pegs, and the other moves reciprocally in the direction perpendicular to the movement of the first trolley, r carries two blocks, the plane of rotation of which is at an acute angle to the reinforcement plane and which serve to feed the tape wound on the cassette.

No. 94911

17 3 2 IB 7

G-

 & -, U - /. four -.

1P1G. one

FIG. 2

5 i J

Ttl

d I

W