SU1719576A1 - Method for sealing joints between panels - Google Patents

Description

The invention relates to devices for winding filamentary materials on supports such as coils, reels, a cop and others, in particular to winding mechanisms with turret heads, and more specifically to devices for refilling threads on these heads.

The closest in purpose and technical essence is a device for automatic refilling of threads.

A device for automatically re-threading is known, in which there are limiting thread guides on the guide rod to fix the thread at the time of reloading. They are installed in front of the folder and; keep the thread in position.

The disadvantage of the device is that the thread contacts a limiting thread guide for a long (possibly maximum) time, namely, from the moment the command to re-fill is sent until the thread is broken by the reel capture. This contributes to violation of the winding mode and lowers the reliability of the re-charge.

Installation in a similar way limiting thread guides (stops) on

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the guide turret winding head is impossible, since it leads to the termination of the layout of the thread on the guide, reduces the reliability of refilling,

The aim of the invention is to eliminate the drawbacks and increase the reliability of operation.

The goal is achieved by the fact that in the device for restarting the revolving winding head containing the grippers for the threads placed at one of the ends of each reel, a system of nodes of the displacement of the wires on the ends of the reels mounted on the guides of the retainer holder the drive mechanism of the threads with the arms to the clamps, made in the form of a two-arm lever, one arm of which is equipped with a hook, and a thread-limiting stop, which is mounted on the guide under the two-arm lever between the hook link and the axis of its rotation, Ed plane tangential to the outer edge of the guide.

Installing a thread-limiting stop on the working surface of the guide under the two shoulders between the hook of the lever and its axis of rotation and not protruding beyond the plane tangential to the outer edge of the guide, on the one hand, allows the thread to unfold over the finished package and avoid contact with this abutment extension of the entire recharging until the very final operation, namely, until the lever is turned. with the thread to the grippers of the bobbin holder and transferring it to the grippers, and, on the other hand, prevents the thread from exiting beyond the end of the finished package at the time when the thread is transferred from the hook of the lever to the grippers of the bobbin holder. This protects the yarn on the empty end of the reel of the finished package and the cone of the bobbin holder with the minimum time of contact of the thread with the limit stop and the minimum time of violation of the established winding mode, increases the reliability of refilling the turret coil head and the quality of the finished packages.

Fig. 1 shows a motive head (general view); FIG. 2 shows a part of the winding head with a thread-limiting stop at the time of thread refilling; on fig.Z. - Enlarged emphasis with a lever.

5764 - Device: for refilling the turret winding head uses - with in the winding mechanisms, which

contain at least two bobbin holders 1 (figure 1). mounted on the rotor 2. Each bobbin holder bears several, for example two bobbins 3. The bobbin holders can be

individual or common from the friction cylinder 4. At one end of each bobbin there are grippers 5 .. There are guides 6 between the bobbin holders fixed on the rotor

5 2. The flanges 7 are the carriers for the cones of the bobbin holders 1. At the outer and middle flanges, two shoulders have levers 8. The long arm of each lever is parallel to the HO guide and has a hook. 9 (FIG. L). Under the long arm of the lever on the guide 6, the limiting abutment 10 is fixed to the tangent, plane to the outer edge of the guide.

During the operation of the winding mechanism, after winding the package of the turret, the head is rotated and the bobbin holder with empty cartridges is put into operation. The full package wrapper is placed in standby position. In this case, the thread contacts the empty cartridge and approaches the full package. The thread guide (not shown) drives the thread 11 reciprocating along guide 6 until the thread is displaced into the hook 9 by the transfer mechanism, which immediately transfers

0 its captures 5 bobbin holders. At the time when the yarn is fed by the hook 9 to the grip 5, it will go out beyond the length of the wound package to the empty end of the reel (shown by dash-dotted line 11). However, the thread-rest stop 10 holds the thread (shown by solid line 11) in the area of the wound package. This prevents the thread from loosening during transfer.

Q from the hook 9 to the gripper 5, as well as at the moment of its breaking or cutting. Installing the yarn restraint under the lever arm, on the one hand, allows the yarn to be laid out in the pack during the refilling process, which prevents the thread from being wound onto the finished package in the form of a rope, and on the other hand, prevents the thread from leaving the package end at the moment

transferring the thread from the hook to the hooks. This prevents the thread from being pulled to the empty end of the reel and cone, improves the refilling of the turret of the winding head and the quality of the finished packages.

Claims (1)

Invention Formula A device for refilling the turret winding head containing the grippers for the threads placed at one of the ends of each reel, system bobbins mounted on guides between the bobbin holders, a mechanism for transferring the threads from the guides to the grippers, made in the form of a two-arm lever, one arm of which is equipped with a hook, and a string limiting stop mounted on the guide under the two shoulders lever between the hook of the lever and the axis of its rotation, in front of the plane tangential to the outer edge of the direction the topic of thread displacement knots at the end of the l CED, // 9W Of and 9ZS6UI FIG. five