RU2352426C2 - Device for manufacture of volume reinforcing cages - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: device comprises mechanisms for feeding of longitudinal and transverse wires, flattening mechanism and cutting mechanism with drive, mechanism for contact welding of wires in the points of their crossing and system of automatic control. Device is provided with receiving drum and guides for reinforcement, and cutting mechanism is arranged in the form of hollow polyhedral pyramid with slots in faces, which is rigidly connected by its base to drive stem. Slots contain knives, on base of which grooves are arranged at the angle that corresponds to angle of pyramid faces incline. Knives are connected by their end parts inside pyramid by means of springs with washer and are installed with the possibility of grooves interaction with external surface of grooves. Besides, cutting mechanism body contains guide holes for knives, which are arranged perpendicular to guides for reinforcement. The latter are arranged with "bushing-knives" and are fixed in body coaxially to guides of receiving drum.

EFFECT: expansion of reinforcing cages produced nomenclature range for construction piles with three and more rods.

8 dwg

Description

The invention relates to the field of wire processing and the manufacture of products from it, and more specifically to devices for the manufacture of volumetric reinforcing cages. It can be used in the manufacture of frames for reinforced concrete building piles.

A well-known automatic line for the manufacture of gratings containing a frame, bay holder, the correct device, a welding unit, a feed mechanism in the form of a pneumatic cylinder with a grip and a cutting mechanism with a chopping knife (see, for example, patent RU 2062676, according to class B21F 27/10, for 1996) [1].

A device for dressing and cutting wire on measuring billets, containing installed on the base and kinematically connected with each other dressing mechanism, feed mechanism and cutting mechanism (see SU 1796328 A1, according to CL B21F 11/00, 1990) [2 ].

The disadvantage of these devices is that they are not intended for the manufacture of volumetric reinforcing cages.

A device for manufacturing a reinforcing product is known, comprising longitudinal and transverse wire feed mechanisms mounted on the bed, wire dressing and cutting tools, movable and fixed electrodes for resistance welding of wires at their intersections, and an automatic control system (see SU 1033253 A, cl. B21F 15/00, 1983) [3].

This device is closest to the proposed invention in terms of technical nature and the number of common features, which is why it is accepted as a prototype.

The disadvantage of the device [3] is the inability to produce products on it with differently spaced reinforcing rods and quickly change it to manufacture products with a different number of longitudinal rods.

The problem to which the invention is directed is the manufacture of volumetric reinforcing cages with different spatial locations and different numbers of longitudinal reinforcing bars.

The technical result from the use of the invention is to expand the range of manufactured range of reinforcing cages for piles with three or more longitudinal bars

The technical result is achieved due to the fact that the device for the manufacture of volumetric reinforcing cages containing mechanisms for feeding longitudinal and transverse wires, a dressing mechanism and a cutting mechanism for wires with a drive, a mechanism for resistance welding of wires at their intersections and an automatic control system, according to the invention, is equipped with a receiving drum, and the cutting mechanism is made in the form of a hollow multifaceted pyramid with slots on the faces, rigidly connected with its base to the actuator stem, which is a a power cylinder, while knives are installed in the slots, on the basis of which grooves are made at an angle corresponding to the angle of inclination of the faces of the pyramid, and the knives are connected by their end parts inside the pyramid by means of springs with a washer and installed with the possibility of interaction of the grooves with the outer surface of the faces, the housing of the cutting mechanism made guide holes for knives located perpendicular to the guides for the reinforcement in the form of "bushings-knives" mounted on it coaxially with the guide of the receiving bar Abana.

It is known in the art to use a power cylinder for cutting wire as a drive (see RF patent No. 1694294, class B21F 11/00, 1991) [4]. However, this device cannot solve the technical problem of simultaneous cutting of several spatially located reinforcing bars.

The proposed design of the cutting mechanism, in conjunction with other design features specified in the claims, allows to achieve the claimed technical result, that is, cut at the same time the required number of spatially located reinforcing bars with subsequent feeding along the guides to the receiving drum.

The applicant has not found sources of information containing the same common set of features specified in the claims, which allows us to conclude that the proposed technical solution meets the criteria of "novelty" and "inventive step".

The invention is illustrated by drawings, where

figure 1 shows a General view of the device from the side;

figure 2 is the same, a top view;

figure 3 shows a front view of the cutting mechanism;

figure 4 shows a section aa in figure 3;

figure 5 shows the connection of the knife with the washer;

figure 6 is the same front view;

7 shows a view of a pyramid with slots in the faces;

Fig.8 is the same side view.

A device for manufacturing volumetric reinforcing cages includes a bay holder 1, dressing mechanism 2, cutting mechanism 3, receiving drum 4, feeding mechanism 5 of the longitudinal reinforcing wire, drive 6 of the receiving drum, drive 7 of the feeding mechanism, coil 8 with transverse reinforcing wire and mechanism 9 for contact welding wire.

The cutting mechanism 3 is placed in the housing 10, has a separate drive 11 in the form of a power cylinder 12 with a rod 13, at the end of which a hollow polyhedral pyramid 14 with a base 15 and slots 16 in the faces 17 is fixed.

Knives 18 are installed in the slots 16, on the basis of which 19 grooves 20 are made at an angle corresponding to the angle of inclination of the pyramid 14. The knives 18 are connected by their end parts 21 by springs 22 with a washer 23. In the case of the cutting mechanism 3, guide holes 24 for knives 18 are made. Each guide for valves 25 is equipped with a “sleeve-knife” 26 and is installed coaxially with the guide 27 of the receiving drum 4.

To coordinate the operation of the mechanisms of the device, an automatic control system 28 is provided.

The device operates as follows.

The reinforcing wire from the bay holder 1 is fed to the dressing mechanism 2, where it is straightened and fed through the guides for the fittings 25 and 27 to the receiving drum 4. Having passed the receiving drum 4, the reinforcement is mounted in the feeding mechanism 5 (not shown).

After that, the reinforcing wire is cut by the cutting mechanism 3. Its drive 11 is turned on, which is a power cylinder 12, the rod 13 of which moves forward, while the pyramid 14 mounted on it with its faces 17 slides along the grooves 20, sliding the knives 18 in the direction of the reinforcing bars through guide holes 24. Four rods are simultaneously cut simultaneously, which is made between the knife 18 and the “knife-sleeve” 26. Then, the drive 11 is automatically switched on during the reverse stroke, during which the knives 18 are under action 22 springs back to its original position.

After cutting, the drive 6 of the receiving drum 4 is automatically turned on simultaneously with the drive 7 of the feeding mechanism 5. In this case, the transverse reinforcing wire is rewound from the coil 8 into the zone of resistance welding by mechanism 9.

If necessary, readjust the device to manufacture a three-dimensional frame with a different number of longitudinal reinforcing bars (three, five or more bars) in the cutting mechanism 3, replace the pyramid 14 with a pyramid with the number of faces corresponding to the number of longitudinal bars required.

Accordingly, the dressing mechanism 2, feed 5 and the receiving drum 4 with guides 27 for reinforcement are retuned.

Using the proposed invention will expand the range of manufacturing.

Claims (1)

A device for the manufacture of volumetric reinforcing cages, containing mechanisms for feeding longitudinal and transverse wires, a dressing mechanism, a cutting mechanism with a drive, a mechanism for resistance welding of wires at their intersections and an automatic control system, characterized in that it is equipped with a receiving drum and guides for the reinforcement, and the cutting mechanism is made in the form of a hollow multifaceted pyramid with slots on the faces, rigidly connected with its base to the stem of the drive in the form of a power cylinder, and installed holes in the slots of the knives, on the basis of which grooves are made at an angle corresponding to the angle of inclination of the faces of the pyramid, while the knives are connected by their end parts inside the pyramid by means of springs with a washer and installed with the possibility of interaction of their grooves with the outer surface of the faces of the pyramid, and in the body of the cutting mechanism made guide holes for knives, perpendicular to the guides for the reinforcement in the form of "bushings-knives" mounted on the housing coaxially with the guide of the receiving drum.

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