DE1435390A1 - Device for curling a thread cable - Google Patents

Description

The invention relates to yarn crimping devices and, more particularly, to yarn crimping devices resiliently arranged crimping rollers

One of the disadvantages of the yarn pucker is the one used so far Type with gears consists in the fact that the crimping gears are sometimes caused by the structure or accumulation of Yarn get jammed on them. The yarn structure or the Yarn build-up can be caused by a fault or break in the yarn, with the yarn wrapping itself around the circumferential Ripple gear winds and piles on this. Resilient crimping gears have been proposed.

9819/1056

original

but these are subject to heavy occupation, when separated and again during the puckering process be united. The reason for this "is that this Gears almost always come out of mesh when they go through one. Yarn build-up or due to a pile of yarn be separated, After removing the accumulation come the moving gears out of mesh together. This leads to considerable damage to the teeth of the gears. Requires even minor damage a replacement of the gears, as roughened gears damage the yarn. With this problem in mind, it is one of the purposes of the invention, a new and improved one To create crimping device »·

Another purpose of the invention is to provide a To create yarn pucker, which is a resilient Has crimping gear.

Another purpose of the invention is to provide a yarn pucker with a pair of separable frills! gears that stay in working alignment, even when they are separated.

Another purpose of the invention is to provide a yarn crimping oil device with a pair of crimping gears, one of which about an axis radial and longitudinal is arranged pivotably behind the gear »A Torrich- illustrating the principles of the invention

909819/1056 bad

H35390

tung can be a pair of yarn crimping gears, one of which a first is driven by a shaft and the second on a pivotably supported yoke or yoke is arranged, include. There are spur gears on the gears attached, which serve as a drive connection from the first crimping gear to the second «The pivot point The yoke is at a point about 45 from the center of the second curling gear, with the spur gears near the pivot point. The bracket is resiliently pressed against the first cog wheel. As a result of this design, a pile of yarn on the first gear moves the yoke and separates the crimping gears while it lets the spur gears mesh. Therefore, when the yarn build-up is removed from the crimping gears,

These gears unite again without causing one another attack. Other purposes and advantages of the invention will be apparent from the following description.

The invention is explained in more detail below with reference to the drawing, for example.

Pig.1 is a side view of an embodiment of FIG Invention and shows the arrangement of a gear-bearing Bracket, with some parts broken off. "

Pig.2 is a plan view of a part of the embodiment according to Pi5.1 along the line 2-2 and shows the springs which are used to pull off the gear-bearing bracket _{or the like}

909819/1056

U35390

Mg · 3 let a side view of a second embodiment according to the invention and shows an Ö * bt & ngemechanismüs that is used for holding a bracket in the working position * '' -.- ■■ - ■ "'

In Pig »1 a frame or stand 11 is shown which a first Kräuser gear 12 carries, which in known Way is driven by a shaft 13 · The gear 12 cooperates with a second crimping gear 16 that is rotatably arranged on a shaft 17 which is attached to a Bracket 18 is attached. The configuration of the teeth on the Ripple gears is such that between these gears heated thermoplastic yarn therethrough Ripple is granted. These teeth are not suitable for to drive another gear or to be driven by another gear. In fact, it is very important that the gears 12 and 16 do not touch each other because a touching engagement of these gears the gear teeth would damage

Since the teeth on the driven first Krauaelzahn- "wheel-12 are not suitable for driving the second gear 16, usual spur gears 21 and 22 are for this Purpose intended. The spur gears 21 and 22 are attached to the creep gears 12 and 16, respectively, but at a distance of them arranged so that the second curling wheel 16 driven by the internal gears 21 and 22 from the shaft 13 ben -., will * In this way, the crimping gears 12 and

909819/1056

16 driven without actually touching each other ·

To provide separation of the crimp gears 12 "and 16 at a-94" T a (jam build-up, the bracket 18 is pivotally mounted on a pin 25 which is attached to the frame 11 at a location which is both longitudinally and radially rearward the Kräuselzahnrad 16 is located. in other words, neither radial nor a longitudinal extent of the second Kräuselzahnrads 16 would the axis of the pin 25 ^v st5hneiden, wherein the axis of the pin 25 is perpendicular to the axes of Krauselzahnrader 12 and 16. Referring to a Point in the middle of the crimping gear 16, the pivot pin 25 lies at an angle of approximately 45 ° from the axis of the shaft 17.

It can be seen that upon initial movement of the bracket 18 the second crimping gear 16 differs from 'the first crimping gear moved by an angle of about 45 ° with respect to · the axis of the driven shaft 13, while the spur gear 22 moves in a direction almost parallel to the axis of the driven shaft 13. In this way, the Crimping gears 12 and 16 are completely separated, while the spur gears 21 and 22 remain in meshing « Since the spur gears 21 and 22 remain in meshing engagement, the crimping gears 12 and 16 cannot except mesh reached out and didn’t follow suit when reuniting Elimination of the error that caused the separation, to damage.

909819/1056 bad

U35390

The bracket 18 is pressed into the working position by a piston 26 of an air cylinder 27 which is connected by a line 28 to a source 29 of compressed air. Since the printing medium used in the cylinder 27 is a gas _r can move against the action of the piston 26 of the bracket -18 when a yarn construction, or a G-arnanhäufung occurs. The working position of the second crimping gear 16 with respect to the first crimping gear 12 can be adjusted by means of a threaded bolt 32 which is fixed by a locking nut 33. The threaded bolt 32 is screwed through the bracket 18 and is in engagement with the frame 11.

Tension springs 38 parallel between arms 3-9 and 40 are arranged, which on the bracket 18 or the air cylinder «- of the 27 are attached, are used to - apply a train to the bracket 18 in the clockwise direction (}? ig..1) · If therefore the 'air cylinder 27 is switched off from the air source 29 is, the springs 38 'move the bracket 18 such that the Ripple gears 12 and '16 for the purpose of investigation

: or lacing up and lacing the yarn j to be separated before the operation.

j The yarn 41 to be crimped is around a heated one Draw pin of known type (not shown) where the thread is heated to a temperature suitable for curling!

The drawing pin consists of a known unit, which is in

is usually attached to the frame 11.

909819/1056 "

■ '..- - ^: ' ■ - ■ -.-. ■■■ "■■■■■;■■." BAD ORSGlNAL

“Aohaem the thread 41 ran over the drawing pin, goes : 6s in several turns or windings around the first crimping gear 12 and an idle roller 46 which is arranged on the frame 11, as shown »in Pig.1. The yarn then leaves the crimping device and is picked up by a conventional pick-up device (not shown)

A switch 47 which is above the air cylinder 27 is arranged, is provided with a piston 48 which Duroh the bracket 18 is moved such that the switch is closed when a pile of yarn separates the crimping gears 12 and 16. The switch 47 is through a cable v51 is connected to a yarn separating device 52. Such a one Yarn separator is e.g. in the patent application filed at the same time. (Our sign

W, 10758/61) according to TIS patent application 70 044 of November 17, 1960 re. "Device for automatic separation of a thread ". Closing the switch 47 by moving the bracket 18 in this way causes the yarn is separated so that no more yarn is fed to the crimping gears to increase the piling.

In operation of this embodiment of the invention, the yarn 41 is advanced past a heated draw pin and goes in several turns or windings around the idle roller 46 and the first Krauselzahnwheel 12. Die Gears 12 and 16 work together in such a way that they give the yarn 41 a crimp "

909819/1056

Palls · in the yarn a defect of such a nature occurs that an accumulation or build-up of yarn on the first. Crimping gear 12 is caused, this "additional yarn thickness forces the second crimping gear 16 and the bracket 18 to pivot clockwise (Fig * I). As a result of the position of the pivot tif $ e &_.; 25, the gears 12 and '16, while the spur gears 21 and 22 remain in mesh.

Movement of the bracket 18 moves the piston 48 in such a way that that the switch 47 is closed and operates the Gfarnsohneide device. This separates the yarn at one Place in front of the curling gears and thereby hold the yarn feed to the crimping gears so that the yarn build-up eliminates itself when the gears 12 and 16 turn keep turning ''

"After removing the yarn from the gear 12, this will be Gear 16 carried back by the bracket 18 into the working position. Since the spur gears 21 and 22 in. Meshing have remained, the crimping gears 12 and 16 unite without touching and without damage.

A second embodiment of the invention is shown in FIG. A shaft 50 rotatably arranged on a frame 49 carries a first crimping gear 53, which with a second crimping gear 55 can work together to to crimp a '56 yarn. The wave. 50 becomes known in Way driven.

909 819/1056 '../,'. . '; /, ..'. . ·

. BATH ORIGINAL

The second frizz gear 55 is on a shaft 58 arranged, which is attached to a bracket 57, which is pivotable on a pin 60 attached to the frame 49 is appropriate. Since the gears 53 and 55 are not suitable are to drive each other, spur gears 61 and for bringing about a drive connection, are from the shaft to the second crimping gear 55 is provided. The spur gears 61 and 62 are on the crimping gears 53 and 55, respectively attached, hats 65 and 66 are provided to the Spur gears from the curling gears at a distance keep.

In order to push the bracket 57 into the working position, a spring 70 and a pair of links 71 and 72 are used used. The handlebar 71 is pivotally mounted on the frame 49 about a pin 73, while the handlebar 72 on the Bracket 57 is pivotably arranged, as indicated by a pin 74. A pin 78 serves to hold the ends to connect the handlebars 71 and 72 together. The spring is between the pin 78 and a pin 79 on the Frame 49 is attached, arranged.

From Figure 3 it can be seen that the spring 70 is the pin 78 pulls against the fixed pin 79 in order to bring the bracket 57 in the clockwise direction into its working position. To the To set the working position of the second crimping gear 55, a threaded bolt 82 extends through a locking nut 83 is determined by the handlebar 72

9 0 9 8 19/1056 bad ordinal

ίο -

and engages bracket 57. By. Turning the With threaded bolt 82 the position of the second crimping gear can be adjusted relative to the first gear » An idle roller arranged on the frame 49 cooperates with the first crimping gear 53 to to form a plurality of turns or turns of the yarn 56. In other words, the yarn 56 goes several Draw between gears 53 and 55, around idler roller 84, and back between the gathering gears.

If a yarn build-up or a pile of yarn occurs on the first crimping gear 53, the second gear 55 is free to move against the action of the tension spring 70. Due to the location of the Sehwenkstiftes 60 with respect to the bracket 57 a movement of the bracket separates the Krause - gears 53 and 55, but not the spur gears 61 and 62. In this regard, the second Aüsführungsform also operates as the first embodiment ·

The second embodiment has an additional advantage in that the force necessary to separate the gears 53 and 55 decreases with the separation of the gears. In other words, a strong force is required to close the gear 55 first move, but a decreasing force causes a further displacement of the gear 55. This results from the anoid * tion of the handlebars 71 and 72, the pins 73, 74 and 78 being almost in line when the bracket 57 is in the working position ,

909W971Ö56

Claims (3)

Claims 1.) Device for crimping a thread cable with a frame, one rotatably arranged on the frame first crimping gear and a rotatably arranged second gear for cooperation with the first gear, characterized by a bracket which carries the second crimping gear and at one end of the frame such is pivotably arranged that a movement of the bracket the second gear in the direction of the first gear or pivots away from this, and by a device located on the frame around the bracket in such a way Direction to push that the second gear is moved against the first gear « 2.) Device according to claim 1, characterized in that that the bracket is pivotally attached to the frame at a location near one end of the second gear is that adjustable means for limiting the movement of the bracket against the first gear are provided on the frame are that a spring is connected to the bracket to close the bracket in a direction away from the first gear press and a pressure cylinder is arranged on the frame to oppose the bracket against the first gear the action of the spring to push 909819/1056 BAD OBIQlNAt 1435380 ~ 12 - 3.) Device nawh claim 1 or 2, characterized characterized that the bracket on the (Jestell on a Point is pivotably arranged, which is both radially and longitudinally behind the second gear, and means are provided to generate a signal in response to a predetermined amount of movement of the Transfer bracket against the resilient pressing means. SAD 9098 19/1056