FR2649727A1 - METHOD OF BREAKING THE BIT TO BE ABLE TO AUTOMATICALLY LIFT FULL SPOOLS ON A LONG FIBER SPINDLE BENCH - Google Patents

Abstract

The present invention relates to a method for breaking the wick in order to be able to practice the automatic lifting of the full coils on a pin bed for long fibers, characterized in that it consists in bringing, to the stop of the rotation of the fin 1 and of the coil 2, the presser finger 4 of the fin 1 in the lower conical zone of the coil 2, in order to cause a partial opening of the wick 3, then to achieve a partial rotation of the coil 2, the fin 1 remaining stopped, in order to obtain the breaking of the wick 3, the coil 2 then being removed from the bench.

Description

-1 Wick breaking process to be able to lift

  The present invention relates to the field of textile industry, in particular the benches with spindles for long fibers and in particular the automatic lifting intended to rid said benches of the full spools and to replace them by empty bobbins and relates to a method of breaking the wick to be able to practice the automatic lifting of full bobbins on a bench

pins for long fibers.

  Currently, fiber spindle benches

  short, such as cotton fibers, are generally-

  equipped with an automatic lifting of the coils, the ope

  automatic lifting ration being relatively easy, while on the benches with spindles for long fibers

  this is much more difficult.

  In fact, in order to be able to remove the full coils, it is necessary to break the wick and, moreover, the latter must be broken at the outlet of

  the palette of the pressing finger. This is done

  sée without difficulty in the presence of short fibers, such as cotton fibers, the carriage carrying the reels

  full being simply affected with a movement of-

  scente after the coils and fins have stopped. This soft-

  Lowering results in a break in the wick of each reel at the exit from the pallet of the finger

presser, as desired.

  In the case of long fibers, this same ma-

  noeuvre absolutely does not achieve the same result

  tat, the wick of long fibers breaking in the tube of the fin and not at the exit of the pallet of the pressing finger, which has the effect that any automation is made unnecessary, re-threading of the whole machine being

  whenever necessary. Indeed, long fiber yarns

  Gues, namely whose fibers have a length of between 15 cm and 20 cm, do not always break in the same place and generally have a weak point at a place where the thread is relaxed. The object of the present invention is to achieve the

  breaking the wick or long fiber yarn in one

  right where the latter is relaxed.

  To this end, it relates to a method of

  breakage of the wick to be able to practice automatic lifting

  matic of full spools on a bench with spindles for long fibers characterized in that it consists in bringing, when the rotation of the fin and the spool stops, the

  fin pressing finger in the lower conical zone

  coil, in order to cause an opening

  tielle of the wick, then to realize a partial rotation-

  the coil, the fin remaining stopped, in order to obtain

  nt the breaking of the wick, the coil being then removed

from the bench.

  The invention will be better understood, thanks to the

  description below, which relates to an embodiment

  sation preferred, given by way of non-limiting example, and explained with reference to the accompanying schematic drawing, in which: Figure 1 is a side elevational view of a pin bench before the drill bit breaking operation;

  Figure 2 is a plan view along the line

  gure 1, and FIG. 3 is a view similar to that of the

  Figure 1, after removal of the full reel.

  Figures 1 to 3 of the accompanying drawing show a spindle bench for long fibers essentially consisting of a fin 1 and a coil 2 on which the fin 1 winds a wick of fibers 3 by means of a

pressure finger 4.

  To break the long fiber wick in order to be able to practice automatic lifting

  full coils, in accordance with the instructions

  vention, a process which consists in bringing the finger 1 to a stop at the rotation of the fin 1 and of the coil 2

  presser 4 of fin 1 in the lower conical zone

  re of coil 2, in order to cause an opening by-

  bit 3, then rotate by

  tielle of the coil 2, the fin 1 remaining stopped, so

  to obtain the breakage of the wick 3, the coil 2 being

removed from the bench.

  When the pressing finger 4 is in the lower conical zone of the spool 2, the wick 3, which is then also in the conical zone, tends to

  open up, this trend being favored by the judgment if-

  multane of the coil 2 and the fin 1, so that the rupture of the wick, following a partial rotation pulse of the coil 2, the fin 1 remaining stationary,

  is favored, this in a place chosen beforehand.

  For this purpose, it is advantageous that there remains, at the outlet of the pressing finger 4, a length of wick

between 40 mm and 100 mm.

  Once all the locks of a bench are

  broken down, the "doffing" proper, that is to say the

  lifting even of the full reels can start.

  Then, to ensure the connection of the extremi-

  free tees of wicks 3 on empty bobbins, finger

  presser 4 of each fin 1 presses said ex-

  end on an adhesive strip provided on said coils

nots.

  Thus, it is possible to carry out an automatic lifting on benches with spindles for long fibers, in particular wool and others, by resolution of the problem of

  breaking the wick in the right place.

  Of course, the invention is not limited to

  embodiment described and shown in the drawings an-

2649727-

  attached. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without leaving

  provided the scope of protection of the invention.

2649727.

Claims (1)

R E V E N D I C A TI ON   Method for breaking the wick in order to be able to automatically lift the full bobbins on a bench with spindles for long fibers, characterized in that it consists in bringing the fin (1) and the rotation to a halt coil (2), the pressing finger (4) of the fin (1) in the lower conical zone of the coil (2), in order to cause a partial opening of the wick (3), then to carry out a partial rotation of the coil (2), the fin (1) remaining stopped, in order to obtain the rupture of the wick (3), the coil (2) being then removed from the bench.