DE1635868A1 - Thread changing device for knitting machines - Google Patents

Description

P 665

Mayer & Cie

Machine factory
Ofeilf inffen / VTürtt ,

Thread changing device adds Strjcjtanaschineta

The firfindune relates to a thread changing device for knitting machines, with several thread insertion fingers for different threads that can be optionally fed to a knitting point as well as a clamping device and a cutting device for each of the threads, the clamping devices and the cutting devices each having a stationary and a movable clip or Have rapid organs that interact with each other ₀

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P 665 ■ ' - 2 ~

Fadanwee-aselvorrichtungon dor named kind; sina is already known in various designs. These so-called rinsing machines, which are used in particular in ani-knitting machines. Gelapgarate make it possible to work alternately with different threads on a piece of backing. The clamping device associated with each thread can be combined with the associated cutting device. The clamping devices have two clamping jaws that can move relative to one another, between which the thread is clamped in its end region when the thread is not being stuck. The problem here is to design the two clamping jaws in such a way that they have a secure clamping effect on the thread lying in between. In the case of previously known clamping devices, there is a risk that the clamping effect between the clamping jaws will decrease as the device is operated more frequently. Even if the clamping jaws and / or clamping jaw carriers, which are usually relatively thin-walled to save space, are bent even slightly, the interaction of the two clamping jaws is disturbed, so that no or no sufficient adhesive effect is exerted on the thread »

The present invention was based on the task of finding a Thread changing device with clamping devices for the to create individual threads in which one is sufficient

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firm \ ind over the whole kleraaflacii © uniform kleran action regardless of manufacturing tolerances or im Operation occurring slight La ($ ovex * changes in the moving Voxrichtung parts is guaranteed and the. protruding The above-mentioned technical parts of known devices are avoided

According to the lirfinä, this object is achieved in that the stationary and / or moveable clerical organ a resilient * has ordered clamping plate in the clamping position

against the resilient or rigid counter-clamping member »The resilient arrangement of the clamping plate is preferred through an intermediate layer aas elastically resilient Material, preferably foam rubber, is achieved, via which the clamping plate is connected to the clamping element According to the invention, the intermediate layer made of elastically flexible material can be one in the direction of that of one Drive shaft of the movable clamping member distal end | the clamping plate have increasing strength.

In a preferred embodiment, the resiliently mounted clamping plate is assigned to the stationary ELeminorgan and in the clamping position lies against a pivotably mounted clamping blade and sur securing the movable. Clamping organ that

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In the small setting, the clamp blade mounted so that it can be slaved is under the influence of a lateral force directed in the direction of the spring mounted clamp plate, which is generated by means of a spring that is attached to the hay leaf, preferably Hooaguniffli-lasered clamping plate, but can also be associated with the flexible Kleaiff Yexwendui ^ stationary spring-mounted KlenuBplatten all clamping plates can be arranged at a common carrier part of the thread changing device.

The Jirfindixng is used below in connection with the The drawing below explains an example of execution the object of the iSrfifcdttngsartikel »

In detail aeigent

Fig. Λ a achematisierte öeitenansiciit a erfiadungsgemäß formed combined thread clamping and thread cutting device of a thread Wech £ 3 elvorri rect \

Fig _o Sr a plan view in the direction of arrow II in Figure 1 on three juxtaposed combined thread and cutting devices.

ßE. a change of direction

BATH ORIGINAL

In the drawing, only the clamping devices and the cutting devices of a thread changing device for three different threads are shown, but not the thread insertion fingers and other thread guide parts with which the selected threads are fed to the needles of a knitting machine, also not shown which each yarn exchange mechanism eye associated switching elements, with which the movable parts of the device are actuated, not shown in detail% "

According to FIG. 1, the combined clamping and cutting device assigned to each of the three threads has a stationary scissor blade 1 and a movable scissor blade 2 interacting with it yarn-catching hook 4 is shaped like on a mounted on a J> c © hachs © 5 swivel lever 6 attached to this pivoting lever 6 can be held by means of a schematically indicated Bebätigungsorganes 7 in the manner shown in Figure 1 the open position is ο the pivot lever released 6, it is pivoted counterclockwise under the action of a tension spring 8 into a closed position in which the movable scissor blade 2 together with the stationary scissor blade 1 * "

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acts and a guided through the device, cuts thread, not shown, and in which the movable clamping sheet 3 to rest against a stationary Clamping plate 9 arrives and thereby the Jtitodbereich of the cut thread between itself and this clamping plate stuck. The clamping plate 9 is & a end of the stationary Scissor blade 1 arranged

In accordance with the invention, the clamping plate 9 of the stationary clamping element is connected via an intermediate layer 10 of foam rubber to the end of the stationary aherett blade 1 or to a protruding part 11 fastened there, as can best be seen in FIG. Figure 2 shows three parallel juxtaposed combined clamping and cutting devices with the stationary 8heren sheets 1, 1 "and 1 * ·, the stationary clamping plates 9 _f 9 'and 9", the movable öcherenbl Blätter 2, 2 "and 2"' and the movable ones Cleram leaves 3, 3 ¹ and 3 ¹¹ · The stationary Xleeatoile ind

nit the etmtion ^ ren Soherenblättera

Anchored on a common bracket-shaped carrier T27 · Of the three combined devices, the first two with the movable clamping blades 3 and 3 ^{f are} in the open position shown in FIG. 1, while the third combined device with the movable clamping blade 3 ' ^f is in the closed position , in which the movable clamping sheet 3 '' Sögen the Moosgurami

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mounted clamping plate 9 "is in contact» This - as from Figure 2 clearly, seen borrowed, is - the elastically resilient ivioosßu.mmi-Zwischen.Gnschich.t 10 '* compressed and so that a contact pressure distributed over its entire surface is exerted on the clamping plate 9 ″, which is practically adjustable on all sides, which ensures a safe installation against the pivotably mounted clamp sheet 3 '', even if this Clamp sheet, for example, a slight bending from its should have üchv / enk level «

The Moosguinmi intermediate layer 10 to 10 ^rf as a resilient connecting member between the clamping plates 9 to 9 ^ff tind the carrier parts 11 on the linden of the stationary knife blades 1 to 1 ^f * is expediently designed so that its thickness is directed towards its outer, the common holder 12 and the end facing away from the pivoting lever 6 increases from the axis 5 * On this ¥ © ise it is achieved »that in the closed position the contact pressure between the movable clamping sheet 5" and the clamping plate 9 ^tf against the bath of the movable clamping sheet 5 hto is increased is this increased clamping effect on strickstelleraiaheii üfctde de # clamp let the thread near the Hadelbereich clamp, thread insertion finger of the yarn exchange mechanism, not shown, so that the work of the assigned xmä facilitation and security? a perfect "inserting" the thread increases "

BATH

In order to achieve the clamping effect between the movable clamping blade 3 and the associated clamping plate 9 fcis 9 ", leaf springs 13 and 13" are provided which are attached to the stationary device parts and rest against the movable clamping blades 3 to 3 "when the device is in the closed position and exert a force component on them in the direction of the clamping plate 9 to 9 ^1f

In the illustrated embodiment of a thread changing device the resiliently mounted clamping plates 9 are the stationary clamping members of the device assigned «Of course, the movable clamping elements with the spring-loaded clamping plates be provided · The fixed and movable organs the clamping devices do not have to be those in the drawing have shown shape and not directly coupled with a cutting device, its essential is that at least one of the clamping surfaces of the clamping device is resiliently mounted, in particular on an intermediate layer made of resilient material is freely adjustable ο

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Claims (1)

ü c h. e Λ _o thread changing device for knitting machines, with several thread insertion fingers for various wahlv / else a fcitrickstelle suppliable threads and one each KL emmvorrichtung lind a cutting device for each Clq ^ threads, the clamping devices and the Abschneidvorrichtungen each case a stationary and a movable clamping "or ₀ cutter member which co-operate with each other, as characterized by that the stationary and / or the movable clamping member is a spring-mounted clamping plate (9) has or "the anliegte in the clamping position against the resiliently or rigidly constructed Gesenlclemmorgan Thread changing device according to Claim 1, characterized in that the clamping plate (9) has an intermediate layer (10) made of elastically flexible material, preferably made of foam rubber, with the clamping element support part connected iso 209810/0434 BATH ORIGINAL P 665 - 10 - 3 · yarn changing device according to claim 1 and spoke 2 _f characterized gekeiuizeichnet that the intermediate layer CiO) of elastically yielding material, a tung in Ri CH- * to by oiner axis of rotation (5) dea movable small Morgans (3/6) removed lind © the KleöuiipH ^ tte (9) growing tJtiärks eon? v / eist. 4 _β thread changing device according to one of claims 1 to 3 »characterized in that. the spring-mounted Klsiimplatt © (9 »9't9 ^l? ) <system stationary Klemaiorgan. (11 to 11 »·) and in K2.eimastel rests against a hinged Kleram sheet (3 bin y ^x ) · Pad changing device according to one of Claims 1 to 4, characterized in that the pivotable ßelagorte Kleramblafct (5 to 3 ¹ ') in the clamping position is under the influence of a side force directed in the direction of the resiliently mounted clamping plate (9 to 9 ^1'), preferably by means of a tension on Klejnmblßtt O to 3 '*) abutting the spring (13 to 1 min ^.;: is produced ^t) ο 6ο F & deiwecbselvorrichtmig according to one of claims 1. to 3i dad \ irdi marked that the stationary Klemmpi. & tten (9 ^^ 9 ¹ ') swC eLüem common holder (Λ?. ~) Are resiliently arranged «
209810/0434 ORIGlNAL BATHROOM