DE2117967B2 - DEVICE FOR DETECTING THE TENSIONAL TENSION OF FAEDEN WHEN A ROTATING YARN OR. KETTBAUM - Google Patents

Description

The invention relates to a device for detecting the tension of threads as they run off of a rotating yarn or warp beam with one attached to a lever arm and around one outside of the warp beam pivot point of the lever arm moved shaft mandrel of the warp beam. be [ tier the deflection of the lever arm around the fixed pivot point serves as a measure of the thread tension.

Although the term "thread" is used in the following description, the Invention can be used in any working process without substantial modification, in which one Surface or strand or fiber materials combined with one or more layered materials run off a bobbin like a warp beam.

In methods in which threads of yarn trees run out of the same with a rotation, z. B. at in a yarn sizing process or when labeling in a textile factory, orders the general demand, to precisely record the tension of the threads during the work process. This is generally true for a manual and or automatic adjustment of the size of the tension, so that the threads are always optimal can be tensioned.

In order to achieve this, various devices have been proposed in the field. In a known device for detecting tension, the thread is supplied along the path a separate role or roles are provided. The thread tension is through detected direct contact of the role or roles with the threads. However, this device has Reason for the direct contact of the threads with the RoI-11. 1 the major disadvantage that the thread surfaces are possibly disturbed by the rollers, what leads to an undesirable tangling of adjacent threads, and that d'e Fadciiqualität through the direct Contact with the rollers may be reduced.

In order to overcome the deficiency that the described Vorrieh Hing with direct contact of the measuring organs, i. to reduce, has already been en: ·, - device mil indirect Detection of the thread tension: proposed with this device Ji is electromechanically Size of the horizontal movement of the Ketlbaun, thorn in the direction of the thread run recorded, the duiv! causing tension in the threads. The 1st; · grasping the size of the horizontal path cleverly!.; by load cells, which the Kettbaunuln :, assigned. The size is converted into a display signal for the spa using a computer: r.un »converted. Except for the complexity ά. AuÜrtus this device can not be an exact \! .. sun »suspected of tension, the taisächü .. i. during the entire period of a cycle of the 1st the process is exerted on the threads. The green: this is because the measurement from the Tig-.r the weight of the warp beam is influenced, which. tv as the thread progresses gradually ::: .- nier more decreases.

The same applies to the device known in the introduction from the British patent 210 S19. i ^; . Threads are pulled off vertically upwards. 1! - If the thread tension is sufficiently high, then the weight of the Kettba will :. is overcome and the brake is released by lifting the warp beam. As a result, the thread tension can be reduced to one by the Gcw ^; rhi of the warp beam; certain value. However, this decreases more and more during a cycle of the thread run-off, so that the tension determined by the weight cannot be kept constant.

By "the German Auslegeschrift 1 108 930 i-.i a rope scales became known that it gestaiii.;. to measure the force to be measured acting on the rope independently of frictional forces. To this! Purpose is provided a rigidly supported against displacement Scilumlenkrolle whose storage against Rotation is resilient and is supported on a weighing device from. The cable scales isi in principle also to detect the tensile stress of the rotating yarn or warp beam Threads suitable, but such a solution cannot be justified because of its great effort.

The invention is based on the object of providing a device for detecting the voltage of to create threads running off a rotating yarn or warp beam, which is simple in structure and with which maintains the tension precisely during the entire period of a thread unwinding cycle without any disturbance of the aii ^ its process and without any damage of threads is possible.

The device according to the invention is characterized in that that one end of the shaft mandrel of the warp beam through a fixed stand in held a diametrically movable position and the lever arm as pivotable about the fixed pivot point Hanging arm is designed that the hanging arm in its lower region the second end of the chain

.ι ι .. .nL-ivir -tu of the last axis 12 to 11

tree wave thorn strand, on the side of the thread ^{arm Π Schl} ; I pressure force a Schwerken ablaut's has a protrusion, which in the swing isl. cause de ^^ ^^ _{12 D} ^ _um .. _i . _c

ken of the hanging arm to generate one of the traction hanging arms u un ^ ^ _{hcwcill s} i _L -h in Fadenabiauispanining corresponding signals »en presses a fixed end of the hanging ^ ^ lower end ··» Lohenden measuring pin. ~ "~ 5 direction. ^Dl ^! ^, J _n 'pressing d ^ pre

The device according to the invention is shown on hand Hangeaims ^ ^ _{QrMc dcs aui dcl} ,

of the embodiment shown in the drawing H._ ^am / ^ _irkcndcn '. \ npreßdruckes Wt de: game shown and explained. It shows? - ■ · ■] * α. ' Swivel movement! of the hanging arm 11

Fi and 1 a perspective ^{view of} a Cjrilbc. " ^Ll . ' _{dr obi} , r _on ßeschreihuni · lent 1κ-ι -grundei; arrangement of the io proportion "'- .. _(v ^. _Sc f _nvcn kbeweiiung proporiu> Vorrichlim». vor. that the.> -e / ^ _{Ri (Jcn} }} _cmVb jrkciide !:

Fiu. 2 is a view of a main part of a modified Uei uroixue. ^. ^ _{NlcBstiu 17 L. ilL} _

Second embodiment of the tension according to the invention > sι λ ■ obviously the great one of the

Device namely in the axial direction of the keU-acting ^^ ¹ 'Y _{dic wühion} j of the F'ade .. tree seen. ^ Spamnn.u ^^ \ / _cinv , _nkl . The Melixiil, Π

In the case of the basic ablauts shown in Fig. 1! üii. ι _. . ^ _{Anprdkiruckcs enlsl:} ^ .- arrangement of an apparatus for transmitting decrees ei η ue ··, ^ _{Ulld di (SL} i _{s vv a} | _{/ u,..:}

Spannuim of deflecting Fäde.i is an end la and fair ekkiiisene. - - - ■ _{L. r} | al. '. ie 1: -

of a yarn or warp beam 1 on a stand 3 tension indicators 1 »^"

so on that it resembles itself in the diametrical directions * ο de-tensioning bc. _ / u ι ^^^^^ ^^ _{Gmnd is} freely movable like a flexible joint. With a bevoi / i! » - ^^ _clcklnsc i, _e Sign;:!

By means of a braking mechanism 4, ^{a prescribed braking force is exerted on the arrangement ^ 1} " ¹ , ,, ^, / BremsmechaniMmi-4 warp beam 1 for the _{purpose of} doing this. The braking mechanism 4 stands with the Stan- produced L.en kr. _BL , _schn , _bcI1 e arrangement -

the 3 connected via a gear 6 that can be reached at 25 mub in ue. _{kmcM cint} , _dül , i _WlM .

the braking mechanism 4 connects, also in a well-known manner

The further gear wheel 7. the one on the mandrel ¥ of the chain. Swivel movement of the Ha ::

tree 1 is firmly attached and that with the tooth- If üie un. _; Mödich wedge of a

wheel 6 is engaged. The second side of the Kettbau- arm 11 large ψ ^ ζ. now ^ mzei.er 18 anuemesl. ie the second end 2 6 of the warp beam, is 30 ^ ^η ξ ^^ ^ TdJr actual I -:, - arranged on a seat 9, which at the lower end showed Sp.innun ^ svsi.ri ^

of a hanging arm is transformed. The upper end of denjpannun ^ D, ^ <^ £ ™ * ^ ^ _K , _uhaumc . Häneearms can be swiveled on an axis U gcla- geiide ^VLinl ^ ^IU ; ,,,., - wish Abu ei, crt. which attached to a fixed stand 13 caused. At e 1. so,., L _{ode |} . ^ _{ιΠ /}

Is. In the drawing, for better illustration, - 35 chung on en N ^^ ¹ ^. Sehwenkbuc-

the entire structure of the warp beam stripping is not end _M; ., _;

shown dotted. The threads run when the hangeaim is in line

corresponding axial rotation of the warp beam 1 flat ^bc Sre ⁿ⁷ - ^c "· arrangement for realization,

from this. At the Fadenablauise.te is In 1 '^: " ^1S * ^ _dcr Srhwenkbeweuune de ^

, m lower part of the hanging arm 11 a projection 16 40 such. Beg e, / ^ de ^^^ _{{; bci}

attached. A fixed measuring pin 17 is located on Hangearms 1 da.gve .De H _n ^ ._

a point which corresponds to this projection 16. At the illustrated Au ^, ul. N, sto η the measuring pin 17 is via a not shown elek- nes lower end mt ^ u ■ ^ c _urrich _

tric connection a voltage indicator 18 auge- die ^ d «" H-ngcdrn, 11 Sieb .. ^.

closed. Furthermore, by a not shown 45 device. he thread 14 ^ et _{fe Spinllicdcr crselzl}

closed. Furthermore, a 45 ^l " ⁿ S_ ^ler ^ f," ¹ ^ J tl ^ ch is a Spi

electrical connection a Bremskrattanze.gcr 19 ^ f Zugk kr -1 can d, ^ _α ^ ^ ^

connected to the braking mechanism 4. become v, e cue z. 0 _{nh] ie}

In the folaenden the working method of the upper, in lh- is arranged is da, i sil H ^ ^jrm

In the basic structure presented, the span-speaking ^ jungdrucki. _can

display device explained in more detail. 50 NMe from duσD.ge _n ., _SOC would be \ or-

When the threads 14 from the warp beam 1 under tension through the end of the, Π κη

run, the tends to act on the threads 14- "^ g ^d « ja ^h end ^ AWau ^ ^^

kende tension to the warp beam 1 in Ablau - ^d J "'^ _n ^ / ^ Sen without the danger of a

SA ¹ UStS-A ™ - Xt ¹ S ₅₅ ~? Of the threads sawed without the need for _d , c

the upper end of the hanging device carrying the warp beam is a complicated structure.

1 sheet of drawings

Claims (2)

Patent claims: ! Device for detecting the tensile stress of lüden when running on a rotating Ciarn or warp beam with a shaft mandrel of the Keitbaum attached to a lever arm and moved around a pivot point of the lever arm located outside the warp beam. in which the deflection of the lever arm around the fixed fulcrum serves as MaLi Uu, the thread tension. thereby geke η η ζ calibrated net. that one end (2 ") of the shaft end of the warp beam (1) is held in a diametrically movable position by a stationary stand (3) and the lifting arm is designed as a hanging arm (11) pivotable about the fixed pivot point (12). that the Hängeam carries the second end (2 1)) of the Kettbjumwellendorns in its lower area, has a projection (16) on the side of the thread run-off, which when the hanging arm is pivoted to generate a signal corresponding to the tension against a stationary Mel.istli ' t (17) presses. 2. Device according to claim 1, characterized in that that the hanging arm (11) counteracts the direction of the thread running off Spring element '21) is assigned as a return spring. 30th