Twisting the body of the machine reverse twisting

 

(57) Abstract:

Twisting the body can be used for reverse twisting lived power cable with solid conductors. Twisting the body in the form of reversal of the rotating pipe fixed in the inner rings of the two bearings mounted on the reversal of the rotating pipe with a shift towards fixed outlets located coaxially with one end of the pipe, and means rotating the socket is installed from the opposite end of the pipe. In the still, and means rotating the sockets are made of coaxial holes for wiring twisted elements, between which are guides of elastic material. By means of rotating the tube between the bearings rigidly fixed gear, whereby reverse rotation of the reversing device is transferred to the pipe, and means rotating the socket. The invention improves the quality of the twisting cable products by reducing the distance between the means of rotating the socket and the locking device. 3 C.p. f-crystals, 2 Il.

The invention relates to the cable industry and can be used mainly for reverse struck sectoriality lived, in which twisting is push-in clamps which clamp the core between him and twisted him around the axis, while moving along the axis of the core (DE 3912415 A1, 18.10.1990).

The main disadvantage of such torsional body is a great local compression of the curved surface of the core collet clamps, causing damage to insulation of twisted elements and, consequently, to lower quality cable products.

Known for twisting the body of the machine reverse twisting cable products, comprising a fixed rack, and means rotating the outlet, which is arranged coaxially holes for wiring twisted elements, and between the coaxial holes are directing their elastic material (SU 546943 A, 22.03.1977).

However, this torsional authority provides quality twisting cable products, as means of rotating the outlet is located at a great distance from the locking device, the function of which, as a rule, performs the reducing traction device of the belt type. The distance between the means of rotating the socket and the locking device affects the quality of the twisting of the cable: what is th quality.

The closest analogue is twisting the body of the machine reverse twisting containing means rotating the pipe and the stationary and rotating means outlet with coaxial wiring twisted elements of holes, with a fixed socket outlet is installed coaxially with one end of the reversal of the rotating pipe, and means rotating the socket is installed coaxially on the opposite end of the reversal of the rotating pipe (DE 2262705 B2, 16.06.1977).

However, in this torsional body not eliminated the disadvantages indicated above.

The objective of the invention is to provide a torsional body machine reverse twisting, ensuring the achievement of the technical result consists in increasing the quality of twisting cable products by reducing the distance between the means of rotating the socket and the locking device.

This technical result in twisting the body of the machine reverse twisting containing means rotating the pipe and the stationary and rotating means outlet with coaxial wiring twisted elements of holes, with a fixed socket outlet is installed coaxially with one end of the reversal of the rotating pipe, and means BPM, that means rotating the pipe is fixed in the inner rings of bearings mounted on the pipe with a shift towards fixed sockets.

This embodiment of the torsional body gave an opportunity to bring the protruding end of the pipe rotating means outlet to the zone of fixation twisting crimp traction device, which significantly reduce the distance between the means of rotating the socket and the locking device and, consequently, to reduce the length of the non-twisted plot, which ensured the quality improvement twisting cable products.

Means rotating the outlet is provided with a conical nozzle with holes for wiring twisted elements. Conical nozzle connects the twisted elements in the beam directly in the zone of twisting and performs the function of caliber, due to which there is no need to install calibre before locking device. Due to this additionally reduces the distance between the means of rotating the socket and the locking device. In addition, the presence of the conical head on the means of rotating the socket can further bring them closer to the fastening area between and in parallel spaced curved elements, as well as to reduce the angle of twist reversal of the rotating socket relative to the stationary outlet, which allowed to reduce the resistance to the passage of the twisted torsion elements through the body and reduce the chance of damage (hood conductive wires, damaged insulation).

Fixed socket type bearing cap inner ring which has one end reversal of the rotating pipe, which allowed us to optimize the design of the torsional body, to exclude mount socket and bracket and to reduce the weight and dimensions of the torsional body.

In the coaxial holes of the sockets installed the eyes in the form of hollow tubes to reduce friction twisted elements when passing through the torsion body. Eyes fixed in the holes by covers.

In Fig. 1 shows the proposed torsional body machine reverse twisting of Fig. 2 is a diagram of the installation of the proposed torsional body, installed in the extrusion line for twisting lived power cable with solid cores and simultaneous imposition of the plastic shell.

Twisting the body (Fig. 1) contains reversum element under the action of centrifugal forces on curved elements. Means rotating the pipe 1 is installed in the inner rings of the two bearings 2 bearings installed on the pipe with offset to one side so as to form a free protruding end 3 of the pipe 1. Fixed socket 4 is installed coaxially with one end of the pipe, in the direction which is offset bearings. Fixed socket 4 is made in the form of a cover of one of the bearing inner ring which has one end 5 reversal of the rotating pipe 1 (Fig. 1). Means rotating the socket 6 is installed coaxially on the opposite protruding end of the rotating means of the pipe 1 and is provided with a conical nozzle 7 with holes for wiring twisted elements. Conical nozzle 7 performs the function of caliber. Between aligned holes 4 fixed and rotating means 6 sockets installed rails 8 of elastic material in the form of helical springs, which serve to facilitate charging of the twisted elements through means of rotating the pipe 1. The ends of the coiled springs secured in aligned holes of the sockets with holes 9 made in the form of hollow tubes that are fixed in the holes by covers 10. Between the bearings 2 on the rotating means is revno rotating the outlet 6 of the reversing mechanism.

Installation diagram of the proposed torsional body extrusion line shown in Fig. 2 and consists of a radiating device 12, the torsion of the body 13 with a protruding end of the 3 reversal of the rotating pipe, crimp traction device 14 with 15 tracks, the extruder 16, which gives the finished cable product 17, and the reversing mechanism 18.

Torsional body set on reversing mechanism 18 (Fig. 2) the bearing housings 2 (Fig. 1) so that means mounted on the rotating pipe 1 gear 11 engages with means rotating the gear of the reversing mechanism.

Twisting the body works as follows.

Twisted elements of the radiating device 12 (Fig.2) is passed through the eyes 9, installed in a fixed socket 4 through guides elastic elements 8, then through the eyes 9 reversal rotating sockets 6, cone nozzle 7, fill in the reducing traction device 14 (Fig. 2) between tracks 15 and then into the head of the extruder 16 (all extrusion line in Fig. not shown), then twisted elements attached to a linear motion in the direction of the head of the extruder 16 crimp traction device 14 and the traction device, the CA shall include but reversing mechanism, which reverse rotation through the gear 11 is transmitted means rotating the pipe 1, and means rotating the socket 6, which spins a curved elements in the beam, which passes through a hole in the conical nozzle 7, performs the function of caliber. Further, the beam enters the reducing traction device 14 between the tracks 15, where the twisting fixation due to plastic deformation of the curved elements. Twisted beam after passing through the reducing traction device 14 enters the cylinder of the extruder 16, where it is superimposed plastic shell, and it turns out the finished cable product.

The necessary parameters twisting specified linear velocity of attraction twisted elements, speed and angle of twist reversal of the rotating pipe torsional body. The less the distance between the conical nozzle 7 and the connection point of caterpillars 15 crimp traction device 14, the less the desired angle of twist reversal of the rotating pipe in each direction, the smaller the length of the transient non-twisted plots, the greater flexibility and, consequently, the quality of the finished cable product.

1. Twisting the body of the machine is reversible for posting the twisted elements of the holes, this fixed socket mounted coaxially with one end of the reversal of the rotating pipe, and means rotating the socket is installed coaxially on the opposite end of the reversal of the rotating pipe, characterized in that the means rotating the pipe is fixed in the inner rings of bearings mounted on the pipe with a shift towards fixed sockets.

2. Torsional authority under item 1, characterized in that the rotating means outlet is provided with a conical nozzle with holes for wiring twisted elements that perform the function of caliber.

3. Torsional authority under item 1 or 2, characterized in that the fixed socket type bearing cap inner ring which has one end reversal of the rotating pipe.

4. Twisting the body on one of the PP.1 to 3, characterized in that the coaxial holes of the sockets installed eyes, made in the form of hollow tubes.

 

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