DE2222028A1 - Method for clamping non-working threads with the thread guides switched off on a circular knitting machine - Google Patents

Description

PATENT ADVOCATE

DiPL.-PHYS. DR. WALTHER JUNIUS 3 Hanover ^ ^

ABBESTRASSE 20 TELEPHONE 83 45 30 30 ^ 1972

Dr J / A

ELITEX - Zavody textilniho strojirenstvi, generalni reditelstvi, Liberec (Czechoslovakia)

Method for clamping non-working threads with the thread guides switched off on a circular knitting machine

The present invention relates to a method for. Clamping non-working threads, especially elastic ones Threads, with the thread guides switched off on a circular knitting machine for the production of hosiery and the like.

Known devices which uie have the task of a similar function as the device according to the invention to meet v / have a rather complicated construction. They take up a large space. -You own one complicated operation. In some cases they fill theirs. Function in the necessary area not, i.e. they brake

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ORIGINAL INSPECTED

222-028

the threads in the necessary area or they do not clamp them.

The invention eliminates the disadvantages introduced, Apparatus according to the invention is simple in construction and reliable in operation.

The invention consists in that with a thread guide a provided with an Anpreßelenent brake segment cooperates, which is arranged such that the pressure element at a point between two thread passages with which the thread guide is equipped and through which a thread in the direction of the rotating cylinder needles Machine is guided, when the thread guide moves from its effective to its inoperative position, the speed of the thread changes continuously through the action of the steadily increasing Fadenumschlingungswinkel around the Änpreßelement and that this Änpreßelement of the brake segment in the inactive position of the thread guide acts on the thread in such a way that this is clamped between the surface of the pressure member and provided between the two yarn passages of the yarn guide support surface, while in the active position ^it ^ yarn guide not winwirkt the pressure member of the braking segment in the thread, so that it passes through the thread passages undisturbed.

The essence of the invention, further features and further details of the subject matter of the invention are based on the following an embodiment shown schematically in the drawing explained in more detail. Show it:

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Fig. 1 is a schematic representation of a thread guide in an effective position, with a brake segment a stationary - ^ nschlsg rests and a free one Thread passage enabled

Fig. 2 is a schematic representation of the thread guide in ineffective position, the brake segment with its Anpreßeleinent on a support surface of the Thread guide rests, whereby the thread is clamped.

A thread guide 1 is pivotably mounted about a pin 2, which rests in a fixed position in a holder (not shown). The thread guide 1 is provided with two jade passages 3 through which a thread P runs in a seal with cylinder needles (not shown) of a circular knitting machine, which are circulating in the loop. A brake segment 5, which is provided with a contact element 6, is pivotably mounted on a pin 4 of the thread guide 1. Between the two thread passages 3 there is a support surface 7 for cooperation with the - "- npreßelement 6. On the holder, not shown, is a fixed A _nec HLAG provided 8 The thread guide 1 is controlled by means of a switching rod 9 which through not. The elements shown are mechanically connected to segments of a main shell of the machine, which are also not shown.

The mode of operation of caricutation is as follows;

If the thread guide 1 according to FIG. 1 takes an effective position a, in which the shift rod 9 with its lower end on the surface of the main, not shown

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is on the switching drum, the thread Γ passes the undisturbed both thread passages 3 and is also not in the shown revolving cylinder needles of the circular knitting machine inserted, the brake segment ^ dec thread guide lies 1 on the stationary view 8.

When the thread is switched off 2%, ie when the thread P is severed, the associated switching rod 9 moves as a result of the action of the uml, not shown. ufenden Ilauptschalttromi'.el in the seal upwards, whereby the thread filler J is pivoted around the pin 2 from its active to an inactive position (Fig. 2). During this pivoting movement of the thread guide door 1, the brake segment 5 also swivels around its apex 4, which, due to its own ochwungina size and constant increase in the thread looping angle, around the pressure element & ent 6 of the thread guide 1 increases; the braking of the thread P causes.

After completion of the upward movement of the shift rod 9 the thread guide 1 assumes an inoperative position in which the pressure element 6 on the support surface 7 of the thread guide 1 rests and the thread P between the Surface of the pressure element 6 and the support surface 7 stuck. This clamping is done by the action of the Flywheel mass of the brake segment 5 or by acting a spring force on thisBrenisseg:; ient 5 »As a further A variant is the arrangement of the brake segment 6 outside of the thread guide 1 possible.

As an "advantage of the invention it can be stated that a

BAD OfttGJNAL

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Clamping the thread i ^J in the immediate vicinity of the
cylinder needles (not shown) circulating in a circle, which is important in particular to work out an elastic bath.

A what-'ei? The advantage of böoLehb is that the entire device does not require any special control after
the jamming of the thread P takes place simultaneously with the switching off of the thread guide 1 from its effective position to its inoperative position.

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Claims (6)

P a t e η ta η s ρ r. Che Method for clamping non-working threads, in particular elastic threads, when the thread guides are switched off on your ^ undsbrickmascaine for the production of hosiery and the like,
characterized, that on the thread guide (1) a brake segment (5) provided with an Anpreßelenent (6) cooperates, which is arranged such that the ^ npreßelement (6) at a b; elle between two thread passages (3) with which the thread guide (1) is equipped and through which a thread (P) in the direction of circularly rotating cylinder needles, the machine is guided when the thread guide (1) changes from its effective to its ineffective Position the speed of the thread (P) according to the effect of the continuously increasing thread looping angle around the pressure element (6) changes continuously and further this pressure element (6) of the brake segment (5) in the inoperative position of the thread guide (1) the thread (P) acts so that this between the surface of the pressure element (6) and one between the two thread passages (3) of the faclenführer (1) provided Support surface (7) is clamped, while the pressure element is in the effective ^ division of the thread guide (1) (6) of the brake segment (5) does not act on the thread (P), so that the thread passages (3) are undisturbed happened. 2. Device for performing the method according to claim 1, characterized,
that the brake segment (5) is pivotably mounted and -7- 20985 1/067 9 BAD ORK3JNAL 222202 « acts on the thread (P) through its own flywheel. 3- device according to claim 1,
permanent marked, that the Bremssegiaent (5) is pivotably mounted and its movement and action on the! thread (P) a spring is made possible, which on the brake segment (5) in the sense of the movement of the thread guide (1) in the ineffective position affects » 4, device according to claims 1 to 3 » characterized, is that the Bremssegiaent (5) reasonable on the thread guide (1) assigns "'. · 5. Device according to claims 1 to 3, characterized, that the Bremssegaient (5) is arranged outside the Fad enf'ö lirers (1). 6. Device according to claims 1 to 5, characterized, that the brake segment (5) in the viirksamen position of Thread guide (1) rests on a stationary Ansehlag (8) and does not act on the thread (P). 20985 1/0679 Blank page