SU816636A1 - Apparatus for feeding longitudinal rods into the machine for welding frames - Google Patents

Description

The invention relates to equipment for the manufacture of reinforcing cages and can be used in prefabricated reinforced concrete plants. A device for supplying longitudinal rods is mainly known in the welding zone of contact machines, comprising a frame on which a mechanism for issuing longitudinal stanza for electrodes 1 is mounted. The closest to the proposed technical essence and the achieved result is a device for feeding longitudinal rods into a welding machine for frames, containing a mechanism for issuing longitudinal rods placed on a frame, a mechanism for arranging rods for a step with a chain conveyor, and a mechanism for feeding rods for electrodes. The fact that the layout of the longitudinal rods and their supply under the electrodes is made after the end of the welding and the removal of the previous grid, because the grid is welded and the layout is made ie on the same level, which reduces performance. The purpose of the invention is to increase the productivity by combining on-board welding sets and laying out longitudinal rods. The goal is achieved by the fact that in the device for the delivery of longitudinal rods the pickup mechanism is made in the form of a stopped with -the possibility of reciprocating movement under the chain conveyor of the drive frame, on which is pivotally fixed with a pitch corresponding to the pitch of the notches of the conveyor chain, spring-loaded grippers, the feeder is equipped rigidly fixed on the frame above the chain conveyor with a step corresponding to the step of the grips of the pickup mechanism with lodgements with lead-in chamfers, and the chain conveyor rigidly locked captive on the bed. Figure 1 shows the device, the surrounding view; figure 2 - the same, at the time of lifting the decomposed rods to the level of the weld zone; in FIG. 3, the mechanism for issuing longitudinal rods at the time the rods are arranged in two levels, section A-A in FIG. in fig. 4 - the same, at the time of lifting the rods spread out. The device consists of a frame 1, electrodes 2, a mechanism 3 for issuing longitudinal rods of the mechanism for arranging the rods per step with a chain conveyor 4 and a mechanism 5 for feeding the rods 6 under the electrodes 2.

The feed mechanism of the longitudinal rods consists of a base 7 / on which the vertical guides 8, the body 9 and the pressure bars 10, which form the bunker 11 and the loading slot for the rods 6 with the body, are rigidly fixed.

A rectangular opening 13 is formed in the housing, in the upper part of which there are lodgments 14 with lead-in slopes 15.

On the guides 8 a vertically movable frame 16 is mounted, on which there are swivel clamps 17, spring-loaded from the housing 9 by means of a rod 18 and a spring 19, and made with grooves 20 for placing the rods b.

Chain trshnsporter 4 consists of two noBOpoTHKix shafts 21 with asterisks 22 rigidly attached to them, on which endless chains 23 with feed cams 24 are pulled.

The mechanism 5 consists of a drive carriage 25, on which the plane 26 is rigidly fixed, and a drive 27.

Chutes 28 are mounted on the lodgments 14 for nap: directors of the electrodes supplying the rods, and the chutes are made with open windows 29 for the passage of the grippers 17.

The device works as follows.

Rebar 6 of the hopper

11 is loaded into the slot. The sprockets 22 are then rotated, as a result of which the branches of the endless chain 23 move along the opening 13, and the cams 24 individually grip the rods 6 on the slit and spread them above the grippers 17. Then turn on the drive

12 and lift the frame 16. At the same time, the hook; the XY-17, with its grooves 20, engages the spreading rods, and lifts them up. When the lifting rods interact with the bevels 15 slides along them, the grippers 17 are disconnected, compressing the spring 19. When the rods rise above the bevels 15 and the groove 28 the spring 19 turns the grippers 17

in a vertical position, with the result that the rods are located above the grooves 28, and the grippers 17 are placed in the windows 29. Then the frame 16 is lowered into the lower (initial) position, resulting in the rods being lowered onto the grooves 28. Then turn on the actuator 27, which moves the carriage 25, as a result of which the plane 26 acts on the ends of the rods 6 and delivers them under the electrodes 2. Simultaneously with the supply of longitudinal rods, a transverse rod 30 is fed under the electrodes, and after the rods are stopped, the intersections are welded. Then the longitudinal rods with a special jaws (not shown) welded to the pepper rod are moved one step further and the next rod 30 is laid. Thus, the net is welded. ki In the process of welding mesh include

Q chain conveyor 4 and lay out the longitudinal bars for the next mesh. When the longitudinal rods move out of the unfolded rods conveyor, the actuators 12 are turned on, as a result of which the grippers 17 raise the unfolded rods 6 (FIG. 2) - and place them above the grooves 28. Then the frame 16 is lowered and the rods 26 under the electrodes, where the next mesh is welded in the same way, and the previous mesh is removed.

Thus, by combining time, welding operations and laying out the longitudinal rods, continuous fabrication of the grids is carried out.

Claims (2)

1. Authors certificate of the USSR 244284, .kl. B 23 C 37/04, 1966. 2. Authors certificate of the USSR 553028, cl. B.23 K 11/10, 1975 (prototype). -Uj nfig 8 7 "-" th ... r