SU1454771A1 - Method of automatic rethreading in chemical fibre yarn winding machines - Google Patents

Abstract

The invention relates to the production and processing of chemical fibers, in particular to methods of mechanizing labor-intensive operations for refilling threads on receiving-winding machines. The purpose of the invention is to increase the reliability and quality of thread refilling. This is achieved by the fact that in the proposed method, the thread is first transferred in the direction along the front of the machine to its grip, after which it is transferred to the backup bobbin holder in the plane that cuts the bobbin holder, along its cylindrical axis, along the radial trajectory. When translating the thread of its branch, it is divided into a feed, which is inserted into the groove of the bobbin holder, and wound, which is retracted from the butt end of the bobbin holder in the opposite direction. With this method of re-threading, the thread is deeply inserted inside the bobbin holder, which allows one thread to move the thread along the bobbin holder slot to the capture zone by the thread spreader with a further thread break. 3 il. and with

Description

one

The invention relates to the production and processing of chemical fibers, and in particular to methods of mechanizing labor-intensive operations for refilling threads on receiving-winding machines. five

The aim of the invention is to improve the reliability and quality of thread refilling.

FIG. 1 schematically shows the proposed device, front view; 10 in FIG. 2 - the same, side view; in FIG. 3 is the same, top view.

The device contains parallel bobbin holders 1, on which cartridges are installed for winding pac-15 SIDE. The bobbin holders 1 are driven by clutches 2.

Threading the yarn according to the proposed method is carried out as follows.

The thread with the help of the yarn guide 3 is wound on the packing of one of the winders 1, which are driven by the clutches 2. After-; reels of a given length of thread on the package, thread thread 4 is retracted along the front of the machine to the position where lever 5 with hook 6 will be in the plane cutting the reserve Oobin holder along its axis. This position of the lever 5 corresponds to a secure grip by the thread guide 4 of the thread, 1 more the thread is caught by the hook 6 and is transferred by the lever 5 along the path

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The radial displacement at an angle oi When the displacement of the thread forms two, these are the power supply (in the drawing the designation is P) and the winding thread (in the drawing it is edited H). The feeding branch is located on the hook up to hook 6 along the thread, k is wound up after hook 6, go to the package. In front of the backup bob .1 the harboring reel, with the help of spinners, the coiled branch is separated from the tailing one in the opposite direction from the bobbin holder eagle. The feeding thread is then inserted inside the bobbin-containing material.

ate

With this method of re-threading, the thread is deeply inserted inside the reel holder, which at one turn of the retainer allows the thread to be moved along the recess of the reel holder to: grab it with a threadladder with a further break. This ensures reliable thread refilling. Removal of the branch from the end of the bobbin; | (the holder prevents its breakage, ijiTo provides an increase in the quality of refilling.

The operations of refilling a thread from a fevny bobbin holder to the right are similar to the considered operations of refilling a thread from the right bobbin ™)) (holder to the left.

1 The advantages of the proposed method are the reduction of yarn waste during the further textile processing of the yarn due to ensuring equal packing lengths and increasing the productivity of service personnel by increasing the service area.

Claims (1)

Invention Formula A method of automatically reloading yarns on chemical fiber receiving-winding machines, which consists in taking the thread on the working bobbin holder, transferring it to the front end of the backup bobbin holder, forming the feeding and winding branches of the thread and fixing the feeding user on this end, in a row and, in order to increase the reliability and quality of reloading, the thread is moved along the front of the machine before it is seized, and the thread is transferred to the front end of the backup bobbin holder in the plane of the bobbin axis holder, along the radial trajectory, while being wound. the branch is retracted to the side opposite to the end of the bobbin holder. / 7 6 L . J