US2530146A - Collection of artificial yarn on ring spindles - Google Patents

Collection of artificial yarn on ring spindles Download PDF

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Publication number
US2530146A
US2530146A US61773A US6177348A US2530146A US 2530146 A US2530146 A US 2530146A US 61773 A US61773 A US 61773A US 6177348 A US6177348 A US 6177348A US 2530146 A US2530146 A US 2530146A
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United States
Prior art keywords
thread
ring
spindle
bobbin
speed
Prior art date
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Expired - Lifetime
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US61773A
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English (en)
Inventor
Barker Sydney Warren
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lustrafil Ltd
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Lustrafil Ltd
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Publication date
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/40—Arrangements for connecting continuously-delivered material to bobbins or the like
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/10—Spinning or twisting machines in which the product is wound-up continuously for imparting multiple twist, e.g. two-for-one twisting
    • D01H1/101—Spinning or twisting machines in which the product is wound-up continuously for imparting multiple twist, e.g. two-for-one twisting in which multiple twist is imparted at the take-up stations

Definitions

  • the thread after leaving the spinneret is subjected to various treatments and after being dried is wound on bobbins. It has been customary to use cap spinner bobbins since the start of the Winding in this case is conveniently easy even with high thread speeds, which in modern processes are of the order of 60 yards per minute and may reach 200 yards per minute or more.
  • the thread issuing from the spinneret into the coagulating medium is led on to thread-storing, thread-advancing rollers where coagulation is completed and the thread is subjected to any desired treatments with liquids and dried.
  • the dried thread is collected on bobbins mounted on rapidly revolving vertical spindles. These are either cap spinners or ring spinners.
  • the thread is led on to the bobbin through a guide which, by a suitable up and down traverse motion of the bobbin or of the guide directs the thread to successive portions of the bobbin.
  • the guide in the case of" cap spinning takes the form of a bell-shaped hood or cap suspended 'over the spindle, and either the cap or the spindle moves at an appropriate speed up and down.
  • the guide is a hook or traveller attached to and free to move round a metal ring concentric with the axis of the spindle; in this case the ring executes the traverse motion which directs the thread to successive parts of the bobbin.
  • the spindle is set to revolve at a predetermined angular speed which gives to the bobbin 3. peripheral speed considerably greater than the rate of delivery of the thread to the collecting device.
  • the result of the difierence between the speed of the on-coming thread and the peripheral speed of the bobbin is that the thread is whirled rapidly round the bobbin in addition to being wound on the bobbin. In cap spinning the thread slips round the bottom edge of the cap, whilst inring spinning the ring traveller is whirled round the metal ring.
  • This ballooning rotation of the thread imparts a twist to it, and the angular speed. of the spindle is so chosen in relation to the speed of delivery oi the thread as to produce the desired number of turns per inch of thread.
  • Ring spinning has several advantages over cap spinning.
  • the spindles are simpler; the tension on the thread is more readily controlled, and since the traverse motion is executed by the lightweight ring and not by the package there is saving in power, and large packages can be wound without trouble.
  • Ring spinners are therefore preferred, but with high speeds of thread delivery starting up a new bobbin presents a serious problem, since it is then impossible for the operator to deal by hand with the slack which accumulates during the time occupied in threading the guides and casting the thread on to t .e bobbin.
  • the oncoming thread was led to a vacuum suction nozzle through which it was drawn into a tube.
  • This disposed of the surplus thread and the operator was enabled to guide the thread through the ring traveller, to pull it down through the ring and to flick it on to the bobbin, at the same time severing the thread between the bobbin and the vacuum nozzle.
  • the oncoming thread was taken to a draw roller having a peripheral speed equal to or somewhat less than the speed of the thread.
  • the thread on its way to the draw roller could then be diverted to the ring traveller, pulled down through the ring, flicked on to the bobbin and severed as before.
  • the ballooning thread will therefore be It is anobject of the present invention to pro-. vide a simple, rapid and easy method of starting up the collection of thread on a ring spinner, suitable for use with even the highest delivery speeds. Further objects will appear from the following description of the invention.
  • a two-speed spindle drive the lower speed .giving to the bobbin a peripheral speed approaching but not exceeding the rate of delivery of the thread, whilst the higher speed is the normal speed for ring-spindles, for example, 4,000 to 0,000 B. P. M., i. e. to 20 times the lower speed.
  • the bobbin in starting up a new bobbin the bobbin is placed on the spindle revolving at the lower speed, the on-coming thread isv taken by hand, either via the lappet guide or direct, to the bobbin. The thread is then taken through the ring traveller (and through the lappet guide if that has not already been done). Finally the higher speed drive is thrown into operation and the spindle picks up normal speed.
  • the operation of starting up occupies only a very few seconds, and there is no accumulation of waste thread during the operathread II is next taken by a finger 0 of the other hand and caught in the ring-traveller 3 on the ring I, and if it does not already pass through the lappet guide 2 it is at the same time made to do so.
  • Fig. 2 illustrates one example of a means for selectively driving the spindle at two different speeds.
  • the spindle I2 is an axial extension of a vertical shaft [3 which is integrally formed with a pulley section II.
  • a tape extends around the pulley i4 and also around another pulley (not shown), the latter being driven by any suitable power unit to rotate the pulley i4 and thus the spindle l2 at a normal running speed, e. g. 5000 R. P. M.
  • Pivotally carried by the shaft I3 below the pulley i4 is a spring-urged arm l0 carrying a jockey pulley H, which, in known manner operates to tension the tape [5.
  • a spiralggear l8 Fixed to the shaft 13 below the arm i6 is a spiralggear l8. Slidable parallel to the shaft [3 is a second shaft is carrying at its upper end an intermediate spiral gear 20 adapted when the slidable shaft I9 is moved to its uppermost position as hereinafter itself.
  • Fig. 1 is a diagrammatic view illustrating the initial threading of the thread on to a bobbin
  • Fig. 2 is a diagrammatic side elevation showing a bobbin spindle and one example of a means whereby the bobbin may be selectively driven at I driven by pulley l and tape 8.
  • the on-coming thread i is taken by hand and given a turn round the bobbin 5 at a convenient distance above the ring 4, the bobbin 5 meanwhile being rotated by the spindle 8 driven at such reduced rate (by such means as are more specifically shown in Figs. 2, 3 and 4) as to give to the surface of the bobbin a peripheral speed equal to or slightly less than the linear speed of delivery of the thread.
  • the thread at this stage' is wound on the bobbin 0 as fast or almost as fast as it is delivered, and
  • a lever or other shifting means (not shown) is actuated to displace the slidable shaft l9 upwardly from the full-line to the dottedline position to mesh the intermediate spiral gear 20 with the gears I8 and 2
  • the normal drive through the tape it is rendered inoperative and the spindle is driven at a slower speed, e. g. 450 R. P. M. through the shaft 22 and the gears 2
  • Fig. 3 illustrates a modification of the arrangement shown in Fig. 2, and corresponding parts in both figures are indicated by the same reference numerals.
  • the secondary drive shaft 22 again carries a spiral gear 2i, but the intermediate gear 20 is fixed intermediate the ends of a vertical shaft 24, said shaft ends being journalled in bearings to a bracket 25 mounted to pivot about the secondary drive shaft 22.
  • the upper end of the vertical shaft 24. carries a spur gear 28 which may be brought into mesh with the first-mentioned spur gear 23.
  • a lever (not shown) is actuated which,
  • Fig. 4 illustrates diagrammatically an arrangement whereby the two different speeds are produced electrically.
  • the bobbin spindle i2 is equipped with a small induction-type electric motor 32 supported on a suitable bearing 33.
  • the base 34 of the bobbin 35 and the spindle l2 above the motor 32 are preferably fitted with insulating block 36.
  • the motor 3'! is secured to the spindle l2 and electric current is supplied to the motor windings 38 through the lead 39 and the double-throw switch 40.
  • Two sources of electric current are provided, for example, one at 8.5 cycles per second, giving a spindle speed of 490 R. P. M., and the other at 110 cycles per second, giving a spindle speed of 6500 R. P. M., so that simply by moving the switch 40, the spindle l2 may be rotated at its normal running speed or at slow speed for threading purposes.
  • a pair of coaxial tape pulleys each open at its inner end so that together they form a casing for a two-speed epicyclic gearing so arranged that when the drive is round one of the pulleys, the spindle is rotated at a relatively slow speed, e. g. 490 R. P. M. for threading purposes, and when it is round the other of the said pulleys, the spindle is rotated at its normal running speed.
  • Any suitable and well-known belt-shifting mechanism would be provided for selectively displacing the tape to the desired pulley.
  • a method of commencing the winding of rapidly delivered thread on ring-spindle bobbins which comprises (a) reducing the drive of the ring-spindle to such a rate that the peripheral speed at the surface of the bobbin approaches but does not exceed the linear rate of delivery of the thread, (b) leading the on-coming thread I to the empty bobbin on the ring spindle and giving it a turn thereon above'the level of the ring so that the thread is wound on the bobbin revolving at the reduced speed, (c) passing the on-coming thread through the ring-traveller, and finally (d) restoring the ring-spindle drive to normal speed.
  • a method of commencing the winding of rapidly delivered thread on ring-spindlebobbins which comprises (a) leading the on-coming thread through a lappet guide to the empty ringspindle bobbin and giving it a turn thereon above the level of the ring, the ring-spindle at this stage being driven at such reduced rate that the peripheral speed at the surface of the bobbin approaches but does not exceed the linear rate of delivery of the thread, (b) allowing the thread to be wound on the bobbin whilst guiding thethread by hand so that successive turns of thread approach the level of the ring, (0) immediately that level is reached passing the thread through the ring-traveller, and finally (d) restoring the ring-spindle drive to normal speed.
  • a method'of starting the winding of rapidly delivered thread on ring-spindle bobbins which comprises, driving the ring-spindle at such a rate that the peripheral speed at the surface of the bobbin approaches but does not exceed the linear rate of delivery of the thread, leading the on-coming thread to the empty ring-spindle bobbin and giving it a turn thereon above the level of the ring so that the thread is wound on the bobbin, passing the on-coming thread through the ring-traveller, and finally increasing the rate of ring-spindle drive to normal speed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US61773A 1947-11-27 1948-11-24 Collection of artificial yarn on ring spindles Expired - Lifetime US2530146A (en)

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GB2530146X 1947-11-27

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US2530146A true US2530146A (en) 1950-11-14

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BE (1) BE485838A (en(2012))

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682781A (en) * 1952-04-01 1954-07-06 Darcy E Lewellen Control for spinning frames
US2912815A (en) * 1956-04-18 1959-11-17 Prince Smith & Stells Ltd Machine for twisting yarn

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US108356A (en) * 1870-10-18 Improvement in spinning-machines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US108356A (en) * 1870-10-18 Improvement in spinning-machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682781A (en) * 1952-04-01 1954-07-06 Darcy E Lewellen Control for spinning frames
US2912815A (en) * 1956-04-18 1959-11-17 Prince Smith & Stells Ltd Machine for twisting yarn

Also Published As

Publication number Publication date
BE485838A (en(2012))

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