DE2315392A1 - THREAD HANDLING DEVICE - Google Patents

Description

PATENT Attorney DIPL.-ING. HARRY ROEVER a MAKNHErM ^f FUDrNHEIM AM MÖGEN 23 POS1FACH:;! /!

March 20, 1973 R / kr

Lawson-HemphiTT, Inc.

96 Hadwin Street

Central FaTTs, Rhode Island 02863

UNITED STATES.

Thread handling device The invention relates to a thread handling device.

The main object of the invention is to provide a new, improved one Locking device for a thread handling device with a rotatable WeTTe, one tagged on the WeTTe fixed drum and a rotatable thread guide, in the middle of which the thread goes around the circumference of the drum Direction towards the world or away from the world. The invention is particularly applicable to thread feeders

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for thread storage, for twine or Cord forming machines, for two-to-one twists and twists, and for similar thread handling devices. The invention is intended to ensure an uninterrupted thread path from a point located inside the rotatable shaft to a location outside the stationary drum, axially spaced from the drum. This uninterrupted course should be maintained regardless of the direction in which the thread is relative to The center line of the drum runs.

To solve this problem, the invention, in its preferred embodiment, a device with a stationary Bearing for the rotating shaft, facilities for bearing the drum on the shaft at a distance from the bearing, a thread guide attached to the shaft and extending from the shaft in the space between the bearing and the drum and a locking device mounted obliquely on the shaft between the bearing and the drum for locking the drum to the bearing, with an opening for the thread guide is maintained. The latch preferably has the shape of a disk with evenly distributed teeth which are arranged distributed over the circumference of the disk and which with corresponding teeth on the shaft bearing and also in the drum can come into engagement. As a result of the inclined position of the disc on the shaft and the meshing of the teeth

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the disk with the teeth of the bearing and with the teeth the drum a kind of buffing effect, i.e. a cyclical, rhythmic wave movement of the disc is achieved when the shaft rotates, so that at all times a circumferential opening as a passage for the thread guide, which is from the shaft goes out, is guaranteed.

In the drawing, a preferred embodiment is the Invention shown:

Figure 1 is a perspective partial view, somewhat schematized, a preferred embodiment of the invention.

FIG. 2 is an enlarged partial section along that in FIG 1 registered section line 2 -?.

FIG. 3 is a cross section corresponding to that entered in FIG Section line 3-3 and shows the locking disc according to the invention.

Figure 4 is a schematic partial section of a two-thread string forming machine with the new locking device according to the invention.

Figure 5 is a schematic partial section of a two-for-one twisted yarn (Chain looper) with the new locking

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. 4 device according to the invention.

Figure 6 is a schematic partial section of a modified one Two-to-one twisted yarn with the new locking device according to the invention.

In Figure 1, a thread tension compensation device or thread storage device 220 is provided, which is a preferred Embodiment of the invention represents. When this thread storage device 220 is in operation, a rotatable thread feed is wound 236 the thread 22 tangentially on the stationary drum 226 to on the drum a plurality of thread turns to create. The thread turns can in the axial direction of the drum to the withdrawal end of the same by a suitable Thread feed device are advanced, for example by feed blades 282 (Figure 2).

The thread is withdrawn from the drum 226 in the axial direction by the thread guide 238 by any conventional thread-consuming process, such as a thread winding device, a knitting machine, a loom, a winding device or the like, which is schematically designated 100 in the drawing . By means of the fixed mounting 224, the thread intermediate winding device 220 is attached to the textile machine 100, or in the vicinity thereof, to which the thread 22 is to be delivered.

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A hollow housing 240, which has a vertical opening 242 (FIG. 2), is fastened to the holder 224 by means of screws 225. which is directed towards a drive belt 290 wrapped around a retractable pulley 308 is led. A vertical shaft 250 is rotatably supported in the housing 240 and has a downwardly protruding part 250 ', which extends to below the housing. On the upper part of the shaft 250, within the bearing 240, a drive wheel 286 is attached, which rotates this shaft when the peripheral surface of this wheel is in drive connection with the drive belt 290.

The lower part 250 ^{1 of} the rotatable shaft 250 supports the fixed drum 226. The top of the drum 226 is spaced from the bottom of the housing 240 to create a clearance for the thread guide arm 370, which extends between the housing 240 and the drum 226 , and it is in this gap that the novel locking mechanism 365 also operates, as will be described below. The drum 226 has a rotatable core 278 which is fastened to the outer rings of ball bearings 276 which are arranged at a distance from one another and ^{which are mounted on the shaft section 250 1.} The core 278 of the drum 226 can be provided with a plurality of vertical, circumferentially spaced slots 280, wherein a displaceable bar 282 is arranged in each of these slots. These bars 282 are given horizontal and vertical reciprocations in order to

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to issue the thread turns on the drum in the axial direction towards the delivery end of the drum, by means of annular cam.

A ring 360 is attached to the top of the drum 226, of a variety of equal mutual distances having, annularly arranged, vertically extending teeth is provided. Similarly is at the bottom the shaft holder 240 is provided with a ring 361, the likewise a multiplicity of downwardly directed annularly arranged at regular mutual intervals Wears teeth. The toothed rings 360 and 361 are concentric and coaxial with the shaft 250 and have The same number of teeth. The two toothed rings 360, 361 lie apart from each other in the axial direction, and their respective teeth are opposite to each other.

Between the rings 360 and 361 there is one with the WeJIe 250 Hub 362 keyed. Fixed in the angular direction to the hub 362 is the inner ring of a ball bearing 364, so that the Bearing 364 is at a skew angle from the center line of shaft 250. On the outer ring of the bearing 364, in the At the same level as this bearing, a disk 365 is arranged, which the novel locking device according to embodied the invention. The hub 362 and the bearing 364, taken together, serve to make the disk 365 inclined to hold the shaft 250. Disk 365 has a variety

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of evenly spaced, circular arranged radial teeth 366 at their edge (Figure 3). The size, depth and spacing of teeth 366 is such that these teeth can come into engagement with the teeth of the rings 360 and 361.

As a result of the oblique mounting of the disk 365 on the When this shaft is rotated, shaft 250 is given a vertical, rhythmic buffing movement of the disk. The disc However, 365 does not spin. The buffing motion of the disc 365 is a progressive cyclical wave movement, as shown in Figure 2 by the dash-dotted line. The vertical distance between the rings 360 and 361 is such that the teeth 366 of the disk 365 are simultaneous, on one another diametrically opposite points of the disc, both with the teeth of the ring 360 and with the teeth of the ring 361 can intervene.

The disk 365 serves as a swash plate to lock the Drum 226 with the fixed bearing 240 to prevent the drum from rotating. When twisting the In shaft 250, the teeth 366 of the disc come progressively with the teeth of the rings 360 and 361, on diametrically opposite one another Engaging the washer to lock the drum to the bearing 240 at all times.

With the shaft 250, for the purpose of common rotation with same, just below the bottom of the case 240, a thread guide arm extending outwards wedged. The thread guide arm 370 runs radially to the drum 226 and has a trailing edge at its outer end Extension 371 protruding below, which ends near the circumference of the drum 226 and carries the thread guide 236. The thread guide arm 370 is provided with a bore 372 over its entire length, the outer end of which is denoted by 373 is.

The rotatable thread guide arm 370 is between the upper, toothed ring 361 and the toothed disc 365 and comes between these above the lower area the disk 365 where the teeth 366 mesh with the teeth of the lower ring 360. This relationship between these parts is maintained at that time, since a rotation of the arm 370 is always occurs evenly with the cyclical movement of the disk 365. As a result, the disk 365 thus forms one circumferential opening for the thread guide arm 370, if the shaft 250 is twisted.

The inner end of the thread guide arm bore 372 is in communication with a vertical slot 251 in the shaft 250. The slot 251 extends from just below the bore 372 up to the top of the

Shaft 250. The upper end of shaft 250 is countersunk and is also threaded for receipt a hollow thread nipple 375, which serves as a thread guide. A transverse pin 376 lies in the slot 251 directly above the bore 372 of the thread guide arm 370.

The thread 22 temporarily stored on the drum 226 is to be, runs over the nipple 375 down through the slot 251 in the shaft 250 to the pin 376, through the Bore 372 and the opening 373 to the thread guide 236 and through this to the drum 226. When the belt 290 is brought into drive connection with the wheel 286, the thread guide arm 370 is rotated by the Drum 226 around, which then winds the thread on the drum will.

Is there a vertical thread on the fixed bearing 240? sensing finger 314 attached. The lower end 315 of the finger 314 rests on the turns of thread located on the drum 226 at. The position of the finger 314, in contact with the thread windings, is indicated by the dashed lines 314 A and 315 A in FIG shown. When the turns of thread on drum 226 are at a minimum, spring 318 pivots the finger toward barrel 226 until a threaded screw 324 mounted on finger 314 hits element 264 hits. This element 264 can be any tactile or tactile

be a device that, by any means, such as a pneumatic system, the position of the retractable Pulley 308 controls. When the screw 324 engages the element 264 touches, the pulley 308 moves the drive belt 290 in circumferential contact with the drive wheel 286. The subsequent Rotation of the shaft 250 causes a rotation of the guide arm 370, so that now further thread 22 is on the drum is wound up. As the thread is further wound onto the drum 226, these thread windings migrate downward and get under the lower end 315 of the finger 314 so that now the finger swings away from the drum until the screw 324 breaks contact with member 264, causing disc 308 to retract and the supply of thread to the drum 226 is terminated.

In this way, so the shaft 250 and the thread guide 236 issued an intermittent rotary movement, so that a temporary thread storage for the immediate. use of the thread processing device 100. Whenever necessary, the disc 365 locks the drum 226 opposite the bearing 240, then around the drum stationary to keep.

Figures 4, 5 and 6 show schematically the application of the new locking swashplate 365 for other textile machines. In Figure 4 is a two-thread twine production

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machine shown with a rotatable shaft 400, which is in a fixed bearing 401 is mounted, which has a ring of teeth 402 evenly spaced from one another. the Shaft 400 runs through a drum 403 which has a similar ring of equally spaced teeth 404 has. The two toothed rings 402 and 404 are so far apart that there is an annularly arranged Disk 405 can be arranged, which on its edge a ring of also equally spaced from each other Has teeth 406. In the manner already described above, the disc 405 locks by engagement its teeth 406 with teeth 402 and 404 the drum 403 with bearing 401 to prevent the drum from twisting.

A thread bobbin 408 is arranged in the drum 403 axially to the shaft 400. The thread 409 is from the bobbin 408 of a Winder 410 withdrawn. A second thread 411 runs through a bore in the shaft 400, then through a bore in the rotatable Thread arm 413 to winder 410. The two threads 409 and 411 are, when picked up by the winding device 410, wound together in the usual way.

FIG. 5 shows the use of the locking device according to the invention in a conventional two-for-one yarn twisting machine (slugging machine), with a rotatable shaft 500, which is in a fixed.

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standing storage 501 is stored, which has a ring with in has teeth 502 which are evenly spaced apart from one another. From the rotatable shaft 500, at a distance from the Bearing 501, a drum 503 carried, which carries a ring of teeth 504 also evenly distributed in the circumference. A rotation of the drum 503 is prevented by the locking effect of the inclined disk 505, the along its edge has spaced apart teeth 506, which on the one hand with the teeth 502 of the fixed bearing 501 and with the teeth 504 of the drum 503 come into engagement.

Axial to the rotatable shaft 500 in the drum 503 is a Thread winding 508 attached, from which the thread 509 is drawn off by a thread winding device (not shown) will. The thread 509 runs from the winding 508 through a hole in the shaft 500 and then through a hole in the outwardly protruding, rotatable arm 513 to the winding device.

FIG. 6 shows a modified embodiment of a two-for-one yarn twisting machine (Bump machine), in which the thread 609 runs in the opposite direction as the thread 509 for the machine according to FIG. 5. For the machine according to FIG 6, a rotatable shaft 600 is provided which is mounted in a fixed bearing 601 which has a toothed ring 602 has. Axially to the shaft 600, at a distance from the bearing 601, a drum 603 is provided which has a toothed ring 604

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owns. An inclined disk 605 with a toothed ring 606 is provided between the toothed rings 602 and 604 its edge, which is to be brought into engagement with both teeth 602 and teeth 604, around drum 603 to lock with the bearing 601 and thus prevent rotation of the drum.

In the drum 603 is a bobbin or other thread take-up device 610 is provided, which is connected to the rotatable light 600 by a corresponding toothing is. When the thread take-up device 610 is rotated, the thread 609 is fed by a thread feed device (not shown) fed through the bore of the rotatable thread take-up arm 613 and then through a bore in the shaft 600; this is used to achieve a desired thread package, e.g. a thread spool.

Preferred embodiments of the invention have been shown and is described for purposes of illustration. However, the invention can be used in many other applications and there are numerous modifications and Changes are possible without leaving the inventive concept and the scope of protection of the associated claims will.

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Claims (4)

Claims 1. Thread handling device with a shaft, a bearing for the shaft, one on the shaft at a distance of the drum mounted on the bearing, a thread guide extending from the shaft between the bearing and the drum and a locking device in the space between the bearing and the drum for Vx locking the drum opposite the bearing, thereby ger indicates that the locking device comprises a disc arranged at an angle to the shaft. 2. Thread handling device according to claim 1, characterized in that that the disc has teeth progressively with teeth on the bearing and with teeth on the Drum are to be brought into engagement at diametrically opposite locations of the disc. 3. Thread handling device according to claim 1 or 2, wherein the shaft is rotatable and the bearing and the drum are fixed, wherein the thread guide is attached to the shaft for the purpose of common rotation with the same and the shaft has an inner thread passage which is connected to an inner thread passage in the thread guide is in connection, characterized in that the disc is not arranged to rotate and a bearing 3ü £ on the shaft holds the disk at an angle to the shaft and a twisting opening for the opening from the shaft Forms thread feed. 4. Thread handling device according to one of claims 1 to 3, characterized in that the disc has a toothed circle has at its edge, and that the disc is held at an angle to the shaft by a bearing, such that the teeth of the disc with the teeth of the bearing and with the teeth of the drum on diametrically opposite one another Make the disc come into engagement around the disc as the shaft rotates in an undulating cyclic manner Grant movement. 3 0; V - ' ^: i 0 / ♦ 4o Blank page