JPH01261172A - Device for winding tape-shaped or thready material on long-sized body - Google Patents

Abstract

PURPOSE: To spirally wind a tape or thread shaped material without a trouble by additionally rotating each storage bobbin on its axis. CONSTITUTION: When the tension of tapes 2 and 3 changes due to the rise of producing speed or the like, rollers 17 and 18 move toward rollers 21 and 22 against the force of springs 19 and 20. Thus, elements 23 and 24 firmly connected to the rollers 17 and 18 move in directions shown by arrows. In other words, a clearance a corresponding to the reference value of the tension is increased. As a result, the output voltage of infrared ray irradiation devices 15 and 16 is changed, and the changed output voltage is further supplied to control units 11 and 12. After the reference value is compared with an actual value, when the value is different from the reference value, a relevant control signal is supplied to a rotating speed controller for driving motors 7 and 8. After the comparison of rotating speed, the rotating speed of storage bobbins 4 and 5 is increased until the tension of the tapes 2 and 3 is lowered. Thus, the rollers 17 and 18 are separated from the rollers 21 and 22 to obtain again the clearance a corresponding to the reference value.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a tape-like or It relates to a device for helically wrapping tape or thread-like material onto a long object in such a manner that the thread-like material is unwound.

A device of the above type is also called a tangential spinning machine. This tangential spinning machine serves, for example, to wrap retaining helices around elongated objects, such as electrical cables or conduits, tubes or bundles of tubes. The retaining spiral may be a synthetic tape, which may be wrapped in one or multiple layers.

It is also possible to use correspondingly tensile-resistant threads which also function as retaining helices.

Furthermore, retaining helices in the form of metal tapes are often used in cable and conduit manufacturing, for example when a layer of metal wire covers the cable core for shielding purposes.
It functions as a contact spiral or a lateral guiding spiral. In particular, where high tensile strength is required, suitable materials based on polytetrafluoroethylene, polyamide, etc., have come to be used. Furthermore, the retaining helix may have a cross-sectional shape that differs from the tape or thread and has a slight height. Thus, it is also possible to use braided or woven fabrics, for example so-called grid-edge fabrics, which are cut into tape shapes and wrapped around elongated objects.

However, due to increased production speeds and the large variety of materials that are wound onto the spirally elongated object, various difficulties always arise when withdrawing tape or thread material from the storage bobbin. come. For example, during unwinding, as the diameter of the winding at the core of the storage bobbin decreases, the tape to be unwound becomes trapped between the bobbin flange and the winding layer still present, and is thereby tightened. The tape may stop working and the tape may break due to power substation.

The problem underlying the invention is to provide a problem-free helical winding of tape-like or thread-like material, regardless of the external shape of the tape or thread material and of this winding, and without impeding high production speeds. It is about being able to do things.

This problem is solved in the device according to the invention in that each storage bobbin is additionally rotatable about its own axis.

Accordingly, the required amount of tape or thread material is continuously dispensed and prepared for the winding process by slow or rapid rotation of the winding device, and tape breakage or thread There will be no breakage.

In order to ensure this continuous arrangement of the tape-like or thread-like material even under extreme working conditions, and at the same time to create a winding device that is three-dimensionally compact and operationally reliable, further configurations according to the invention are provided. In order to drive each storage bobbin, a motor is provided whose rotational speed is controlled, and this motor is mounted rotatably about the axis of the object together with the storage bobbin to which it belongs. . In this case, it is particularly advantageous if each drive motor is provided with a control unit. In this way, the number of revolutions of each storage bobbin, for example the tape material, the tape shape or the respective length of the tape drawn off from the respective storage bobbin, is determined by the respective given conditions, which are predetermined by the length. It becomes possible to adapt it to

The device according to the invention is advantageously constructed in such a way that the hollow shaft guiding the object serves as a support for the storage bobbin and the drive motor. This allows for continuous production with operational reliability, and there is no need to cut the object when changing the bobbin.

The device formed according to the invention is particularly suitable for twisting electric cables or conduits of large cross-section, solid or formed from strands, in which the windings of the core wires are carried out successively in alternating directions. The cores are drawn individually from a fixed and supported storage, the first strands being grouped together at will to form a bundle, and subsequently the second strands being drawn out in a predetermined section delimited by points. It is advantageously used to carry out the known method (German Patent Publication No. 29 46 248) in which the fibers are twisted in this predetermined section in a stretched state during the passage through the fibers.

Within the above-mentioned section, the object is stored stretched along a certain relatively short section, and the first twist of the bundle is only a fraction of the storage length after leaving the point. The length ensures that it is captured and held from all sides. This section of Kanto of this holding is such that the first twist is twisted between the point and the holding part, and this twisted section is further twisted after the core wires of the bundle are released from the holding part. The second strand is held in this twisted state further during passage through the storage length until it is fed to the point, and the first strand is held in this twisted state until it is fed into a point. It is continuously wound with one or more retaining spirals which are withdrawn as a bundle from the storage immediately after leaving the storage. The winding and twisting of one or more retaining spirals takes place simultaneously, so that the retaining spirals are wound onto a twisted core. The retaining helix thus secures the twisted bundle.

The invention will now be described in detail with reference to the embodiments illustrated in the accompanying drawings.

For example, in order to helically apply the tapes 2 and 3 to the twisted conductors of the electrical energy cable 1, the tapes are drawn from storage bobbins 4 and 5, the axis of which runs parallel to the longitudinal axis of the cable. Teruga energy cable
It is rewound by rotating around the center. A drive motor (not shown) as well as a hollow shaft 6, which is rigidly connected to the storage bobbin 4.5, are used for this purpose, through which the energy cable l passes continuously.

According to the invention, storage bobbins 4 and 5 are provided in order to avoid breakage of the tape or breakage of the thread-like material during the winding process, for example due to the tape or thread being tightened in the area of the bobbin during the unwinding process. The belt drive mechanism 9 and 10
Rotational speed controlled drive motors 7 and 8 are provided, which are driven via the motors. These drive motors 7 and 8 are fixedly mounted on a hollow shaft 6 which rotates like the storage bobbin. These drive motors thus rotate together with this hollow shaft and the storage bobbin 4.5. Relative to this moving system, a control unit 1 assigned to each storage bobbin
1 and 12 are supported. The current supply takes place via a loop ring.

At the start of production, ie when the storage bobbin 4.5 is fully wound, the reference value generator 13.14 displays the spacing a of the infrared radiation device 15.16 and sends a corresponding signal to the respective control n. Unit 7 has been adjusted to be given to units 11 and 12. Here, when the tension of the tapes 2 and 3 changes, for example due to an increase in the production speed or due to a decrease in the winding radius of the tape material stored in the storage bobbin 4.5, the rollers 17.18 are moved by the spring 19. movement in the direction of rollers 21, 22 against a force of 20. Elements 33.24 are correspondingly rigidly connected to rollers 17.18.
moves in the direction of the arrow. That is, the interval a corresponding to the reference value of tension increases. As a result of this change in spacing, the output voltage of the infrared radiation device 15,16 changes, which output voltage is also applied to the control units 11 and 12. After the reference value/actual value has been compared, if the value deviates from the reference value, a corresponding control signal is applied to the rotational speed controller for the drive motor 7.8.0 Then after the rotational speed comparison, the storage bobbin 4 .5 rotational speed is increased until the tension in tape 2.3 decreases;
This causes rollers 17 and 18 to move toward roller 21 in the direction of the arrow.
．． 22, the distance a corresponding to the reference value is reached again. In order to improve this control process, which ensures that the winding process always has sufficient material to be wound, a so-called tachometer 25.26 is used.
is provided.

It is.

The symbols in the diagram are: l...Energy cable, 2.3...Tape, 4
．． 5...Storage bobbin, 6...Hollow shaft, 7.8...
Drive motor, 9, lO...belt drive mechanism, 11.1
2... Control unit, 13.14... Reference value generator 15.16... Infrared irradiation device, 17.18.21.
22...Roller, 19.20...Spring, 23.24
...Element, 25.26...Tachometer.

Claims (1)

[Claims] 1. Tape-like or thread-like material is removed from a storage bobbin which is arranged with its axis parallel to the axis of the object and together rotatably supported about this axis. In an apparatus for helically winding tape-like or thread-like material onto a long object in an unwound manner, each storage bobbin is arranged to be additionally driven in rotation about its own axis. Apparatus for helically wrapping the tape-like or thread-like material onto an elongated substance, characterized in that: 2. A motor with controlled rotational speed is provided for driving each storage bobbin, which motor is mounted rotatably about the axis of the object together with the storage bobbin to which it belongs; A device according to claim 1. 3. Each drive motor is provided with a control unit;
The apparatus according to claim 1 or 2. 4. Device according to one of claims 1 to 3, characterized in that a hollow shaft for guiding objects is provided as a carrier for the storage bobbin and the drive motor.