DE8106354U1 - "Warp beam for a thread chain" - Google Patents

Description

RHODIA AO D-TBOO FREE OFFICE Freiburg i. Br *, February 26, 1981 Warp beam for a thread chain

The invention relates to a warp beam for a thread chain with two main warp beam disks arranged non-displaceably on the warp beam tube and two auxiliary warp construction pulleys.

In the weaving mill there are often problems aSjf when the thread runs off * flocks or chains from the warp beam. In particular, this occurs Problems arise with smooth, ie non-textured, synthetic filament yarns, especially with smooth, untwisted yarns and sized polyester yarns.

If such thread warps wound on warp beams, temperature fluctuations (Heating and cooling) is created between the end faces of the warp beam wound up The thread chain and the warp beam disks each have a gap with a width of up to approx. 1.5 mm. When the Thread chain from the warp beam can now, yarns that are at the edges of this thread chain, fall or migrate into the respective gap and get jammed there, which leads to yarn breaks and can thus lead to process disruptions.

From DE-AS 27 37 ^ 24 is a chain of smooth, untwisted and sized filament yarns with which the gap formation is to be avoided and which are characterized by this is that unsized, preferably textured or twisted-up edge yarns are arranged on both edges.

RHODIA AO D-ΊΘΟΟ FREIBURG - k -

The disadvantage of this proposal known from DE-AS 27 37 kZk , however, is that each thread chain made of such smooth, untwisted and sized filament yarns has to be added to a different type of edge yarn, which in addition to the increase in price also leads to further disadvantages of such thread chains.

Furthermore, from DE-PS 21 38 52k a Kettbaumsoheibe with a serving to hold the thread winding main disc and an auxiliary disc axially supporting the main disc is known) this Kettbaufflscheibe is characterized in that the main disc at some points on its circumference with the interposition of support springs on the auxiliary disc is supported and that it is provided with display means, preferably measuring pins for reading off the axial relative movement of the main disc with respect to the auxiliary disc caused by a deflection of the main disc. The main disc and auxiliary disc are fixed on the warp beam tube so that the deflection of the main disc due to the pressures generated by the wound thread chain can be recognized and read directly.

With this warp beam disc known from DE-PS 21 38 52Ί however, the formation of a gap between the end faces of the warp thread winding and the warp beam disks cannot be prevented.

The object of the present invention is therefore to provide a warp beam for a thread chain with which the formation of gaps, which occurs in particular in warp thread windings made from smooth, untwisted and sized polyester yarns, is avoided. In addition, the disadvantage of the proposal known from DE-AS 27 37 k2k is to be avoided.

This object is achieved according to the invention by what is specified in claim 1 Warp beam for a thread chain with two main warp beam disks and two auxiliary warp beam disks loosened.

RHODIA AO D-TBOOFREIBURO

An advantageous embodiment of the warp beam according to the invention e α is specified in claim 2.

Embodiments of the invention are illustrated below with reference to the drawings explained in more detail. Rises

^FIG "1 schematically shows a erfindungegemaßen warp beam in the section of the warp beam tube axis \ this illustration shows the warp beam in the state of holding together the main Kettbaumecheibe 2 and the auxiliary beam flange and the k Aneinander-

'holding the main warp beam 3 and the auxiliary warp beam 5,

⁽ Fig. 2 Scheraatically a warp beam according to the invention in section

through the warp beam tube axis {this illustration shows the warp ' tree in the state of pressing the auxiliary warp beam disks

t '4 and 5 to the wound thread chain,

u Fig. 3 schematically shows a warp beam according to the invention in the direction 'considered the beam tube axis.

The warp beam shown in the drawings consists essentially ^: borrowed from a warp beam tube 1, two main warp beam disks

U 2 and 3, each on the ends of the warp beam tube 1

; ■ are arranged to be slidable, as well as two to hold the wound

; ^; auxiliary warp beam disks k and 5 * die

on the respective sides of the main warp beam disks facing the thread chain 2 and 3 displaceable on the ends of the warp beam tube 1 are arranged.

The main beam washers 2 and 3 each come with a Thread to be screwed onto the corresponding thread at the * "ends of the warp beam tube 1; however, they can also

J ^ With the help of any other fastening means,

° * be arranged on the chain tube 1 so that it can be slid.

Ο a .'- JΌ '' · ■ '"■■' ■ ■; ■ - 6 -

RHODIA AG D-IBQO FREIBURG - 6 -

Between the main warp beam disc 2 and the auxiliary warp beam disc k and between the main warp beam disc 3 and the auxiliary warp beam disc 5, coil springs 6 are arranged at some points! Instead of helical springs, however, other resilient elements can also be arranged. The helical springs 6 serve to press the auxiliary warp beam disks 4 and 5 against the respective end faces of the warp thread winding.

If such a warp beam is provided with a thread chain made of sized polyester yarns and is exposed to temperature fluctuations, no gap can form between the auxiliary warp beam disc k and the warp thread winding and between the auxiliary warp beam disc 5 and the warp thread winding, because this auxiliary - Warp beam disks k and 5 are pressed continuously by the spring pressure onto the end faces of the warp thread winding; every movement of the sides of the warp thread winding is taken along, so that the auxiliary warp beam disks are constantly in contact with the respective end faces of this warp thread winding.

The coil springs 6 are arranged so as to be distributed regularly, as shown in FIG. 3.

As shown in FIGS. 1 and 2, the ends of the coil springs lie in opposing recesses in the main and auxiliary warp beam disks. The ends of the coil springs 6 can be anchored firmly in these recesses. Due to the presence of these recesses, the warp beam disks 2 and h and the warp beam disks 3 and 5 can each be pressed or held flat against one another; the coil springs 6 are then compressed and lie completely in the recesses, so that no gap remains between the warp beam disks 3 and 5.

RHODIA AG D-T3OO FREIBURG

Before the winding of the warp beam with the yarn chain, the auxiliary beam flange k to the main beam flange 2, the auxiliary beam flange 5 rind used to the main beam flange 3; This is done using the in Fig. 1 and Fig. 3 shown CAPS LOCK or retaining screws 7 "During the winding of the warp beam with the thread chain now this state remains the stringing holding the warp beam 2 and k as well as the warp beam 3 and 5 are made. After winding, the locking or retaining screws 7 are loosened, whereby the auxiliary warp beam disks h and 5 are pressed against the respective end faces of the warp thread winding by the pressure caused by the helical springs 6 and thus avoid the formation of gaps caused by subsequent temperature fluctuations. Instead of locking or retaining screws 7, however, other releasable retaining devices can also be arranged.

In a preferred embodiment of the Kettbaumeβ according to the invention, to limit the distance between the main Kettbaumscheibe 2 and the auxiliary Kettbaumscheibe h as well as to limit the distance between the main Kettbaumscheibe 3 and the auxiliary Kettbaumplatte 5 at some points of these Kettbaum discs adjustable, limit screws 8 arranged, as can be seen from FIGS. 2 and 3. In order to avoid unintentional distribution of these limiting screws 8, these screws can be designed so that they can only be adjusted with special tools.

Instead of limiting screws β, however, other - possibly divisible - be arranged limiting devices.

The fixed or retaining screws 7 and the limitation screws Be β are preferably arranged in a regularly distributed manner, for example as shown in FIG. 3.

- 8th -

• »t ι * ι t t» # ι

Il I (

RHODIA AD D-WOO FREIBURG With the help of the warp beam according to the invention, the

Slit images ν occurring due to temperature fluctuations

application with wound thread chains, especially with thread p _:

Chains made of smooth, untwisted and sized polyester ■

yarn, avoid. '

In addition, it is when using the warp beam after the Erfir: -.;]

'4 dung is no longer necessary, the thread chain different edge i

to add yarn to avoid splitting. I.

RHODIAAD D-ΊΒΟΟ FREIBÜRG Freiburg i. Br., February 26, 1989I summary Warp beam for a thread chain

Warp beam for a thread chain, especially for a thread chain made of smooth, untwisted and sized polyester yarns. The warp beam with two main warp beam disks (2 and 3) arranged non-displaceably on the warp beam tube (1) and two each on the sides of the main warp beam / iben (2 and 3) that are slidable on the warp beam tube (1) on the sides of the main warp frame (2 and 3) facing the wound thread chain thin auxiliary warp beam disks (k and 5) avoids the formation of gaps between the warp beam disks and the end faces of the warp thread winding due to temperature fluctuations; this is effected by springs (6) arranged between the main warp beam disc (2) and auxiliary warp beam disc (k) and between the main warp beam disc (3 ) and auxiliary warp beam disc (5) through which the auxiliary warp beam discs (k and 5) are constantly printed on the respective end faces of the warp thread winding.

Claims (1)

i I main warp beam disks (2 and 3) and two auxiliary warp beam disks (k and 5), which are fixed in place in the tube (1), characterized by the following features: a) the aid warp beam disc (4) used to hold the wound up thread chain is on that of the thread chain The side facing the main warp beam disc (2) is arranged to be displaceable on the warp beam tube (1) and the The auxiliary warp beam disc (5), which is also used to hold the wound thread chain, is on the The side of the main warp beam disc facing the thread chain (3) arranged displaceably on the warp beam tube (1), b) to press the auxiliary warp beam disks (k and 5) against the wound thread chain are between the main Ket.tbaumecheibe (2) and the auxiliary warp beam disk (4) and between the main beam pulley (3) and the auxiliary warp beam disc (5) regularly in some places distributed resilient elements (6) arranged, c) for temporarily holding the main warp beam disc (2) and the auxiliary warp beam disc (4) together and the Main warp beam pulley (3) and the auxiliary warp beam pulley (5) to each other these are in some places with detachable Provide retaining devices (7). 7HODlA AG D-TBOO FREIBURG Warp beam according to claim 1, characterized in that to limit the distance between the main warp beam disc (2) and the auxiliary warp beam disc (4) and between the main warp beam pulley (3) and the auxiliary warp beam pulley (5) these in some places with limiting devices (8), which can be adjustable, are provided.