US2422444A - Drawing mechanism for textile slivers - Google Patents

Drawing mechanism for textile slivers Download PDF

Info

Publication number
US2422444A
US2422444A US584383A US58438345A US2422444A US 2422444 A US2422444 A US 2422444A US 584383 A US584383 A US 584383A US 58438345 A US58438345 A US 58438345A US 2422444 A US2422444 A US 2422444A
Authority
US
United States
Prior art keywords
condenser
roller
sliver
rollers
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US584383A
Other languages
English (en)
Inventor
Solanas Ramon Balmes
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2422444A publication Critical patent/US2422444A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides

Definitions

  • My invention relates to the drawing or drafting mechanisms for textile slivers used in spinning machines for the spinning of cotton or other textile fibres, that include various pairs of rollers and a conducting or accompanying roller for the fibers arranged in such a way that it rests freely on the lower rollers of two consecutive pairs, to conduct and accompany the fibres of the sliver and to reduce at the same time the width of the latter.
  • a drawing mechanism of this type is described in the patent of the'same inventor No. 2,205,701.
  • the drawing mechanism described in this previous patent includes a pair of feeding or entrance rollers for the sliver, a second pair of intermediate rollers that, in combination with the feeding rollers, make a drawing action, a pair of retaining or slip rollers that revolve at a peripheral speed slightly superior to the intermediate rollers, and lastly, a pair of final or delivery rollers for the exit of the thread, -being those that produce the final drawing of the sliver, held by the intermediate rollers, and sliding the bres between the retaining or slip rollers.
  • the mechanism described in the former patent above mentioned includes as an essential element, between the two intermediate rollers and the two slip rollers, a conducting roller that takes the sliver from one pair of rollers to the other, combined with a condenser or reducer of the width of the sliver, compelling the fibres to come close together.
  • This conducting roller is, in the former patent arranged to simply lie on the lower rollers of the two adjacent pairs and is combined with the condenser for the sliver in such manner that the latter, on passing under the conducting roller, is obliged to penetrate the throat of the condenser', the fibres being thus brought together to assure a better drawing.
  • the present invention has -for its object certain; improvements introduced into the'mechanism of the above-mentioned former patent, by whichfa considerably more perfect working of the mechanism and a better quality in the threads produced are obtained. With these improvements not only is the construction of the mechanism s1mplified but its manipulation by the workmen is made easier and, also, the depositing in the vital parts of the mechanism of nbre-ends or ufl that are always floating inthe spinning rooms and slowdown the normal working, is avoided.
  • the construction of the conducting roller and its frame-work is extraordinarily simple andeconomical and is, moreover, extremely easy and practical to handle.
  • the framework bearing the condenser may be separated from the roller simply and easily with the fingers without the need to use any tool.
  • the fiui or fibre-ends that may accumulate in the conducting roller and in the framework is reduced to a minimum quantity, so that the machine canlwork for very long periods without the necessity of cleaning these parts.
  • the sliver condenser does not rub against the conducting roller. and rubs against the lower of the two slip rollers to a very reduced extent. Although the lcondenser does not touch the conducting roller, its position is perfectly established by the latter roller and cannot be disturbed when the conducting roller and the condenser are removed from the machine, so that on replacing these parts of the machine, the condenser necessarily remains in the correctposition.
  • the condenser is positively driven with a reciprocating movement synchronised with the movement of the -bre guide bar, thus saving the bres from having to make an effort to give the reducer this lateral movement.
  • Figure 1 represents amechanism ⁇ similar to that described in the above-mentioned former patent, provided with four pairs of rollers and conducting roller for the sliver, embodying this invention.
  • Figure 2 is a perspective view of the conducting roller and its framework with the sliver con-- elasticity, curved in the shape shown in Figure 4, forming at each end a circular eye or ring not completely closed I4, these eyelets being introduced into the cavities I2 of the roller, thus serving as pivots to permit the rotary movement of the roller I0 in relation to the framework I3.
  • FIG. 6 is a perspective view of the condenser and of the ruler that gives it the reciprocating movement.
  • Figure 7 is a front view of the condenser, partly in section, to show' the arrangement of the opening by which the said condenser is linked to the guide rod.
  • the drawing apparatus shown in Figure l as an example is an apparatus with four pairs of rollers, being: a pair of feed rollers I, a pair of intermediate rollers 2 that revolve at a peripheral speed substantially greater than the rollers I to bring about a drawing of the sliver between the two'pairs, one pair of slip rollers 3 of which the lower is moved at a peripheral speed substantially the same as that of the rollers 2, to keep the sliver taut, whilst the upper roller is free and light, to' permit the bres of the sliver to slide through them, and lastly, a fourth pair of rollers 4 which are the final drawing rollers or thread exit rollers, which are moved at la peripheral speed greatly superior to that of rollers 2.
  • the sliver 5 is guided into this drawing mechanism by a sliver guide bar 8 which gives it a transversal to and fro movement, and for the purpose of using a much thicker sliver that generally -has little twist, instead of guiding the sliver by a simple opening in the bar 8 as is usually done, a funnel 1 is attached to the bar 8 to cause the bres of the sliver to lie as near as possible to each other.
  • a conducting roller II resting freely on the lower rollers of pairs 2 and 3 and having, moreovenon the under side a reducer or condenser il to bring the bres of the sliver nearer together and reduce their width.
  • a second sliver condenser may be placed to join the fibres again before they are taken by the exit rollers Il.
  • the sliver 5 is given a relatively strong drawing between rollers I and 2, then a-second and still vmore vigorous drawing between rollers 2 and 4, so that the total drawing from sliver 5 to the exit thread may easily reach has at each side a recess I2, and the frame isY formed by a piece of wire, preferably of steel or some other material possessing resistance and beyond the lateral surfaces of the roller and to permit al small lateral play to the framework. 'Ihis enables the friction between the recesses I2 of the roller and the rings or eyelets I4 to be reduced .to a very small value.
  • the wire constituting the framework forms with its lower part a. straight branch or rod I3 parallel to the axis of the roller IIJ and 1n which is linked the sliver condenser Il. On one of its sides it is bent at a. right angle to form a branch I 5 that is approximately ata radius to the roller I0 and ends in a ring or eyelet IB moved inwards so as to iit into the recess I2 of the roller.
  • a button 20 is placed, for preference of moulded material, serving as a handle by which to take hold of the framework and lift it, together with the roller Ill.
  • the curved part Il is intended to give counterweight so that, in its normal Work-l ing position, the frame may tend to bring the lcondenser II against the lower roller 3.
  • the framework, set as shown in Figure 4 can easily be placed on roller Ill without the need of any special tool, it being suillcient for this purpose to lightly separate with the fingers the two branches of the frame, using its-elasticity,'until the rings I4 t into the recesses I2 of the roller.
  • the roller I0 has no pivots and, on the conl trary, the parts that brush against the roller are ⁇ lodged in the interior ofthe recesses- I2. the libres floating in the air in the spinningroom can with diiculty get between these rings I4 and the recesses I2 of the roller, and should some bre manage to accumulate in this part, such fibres are removed completely and without any dimculty by simply touching the ringsgently with the ngers.
  • the lower cross-bar of the frame is also not dirtied by the action of the floating fibres, because it is situated below the roller and not touching it.
  • the sliver condenser I I has thev shape of a condenser open on the lower part so as to be able to remove and put back the roller-and-condenser unit easily.
  • the lower cross-bar I3 of the frame is separated from the roller Ill by a distance such that the condenser II is unable to touch the roller I Il, this distance being, on the other hand, sufciently small to prevent the condenser from turning and coming into a wrong position in relationl to the roller when the rollerand-condenser unit is off the machine. rBy this means it is possible to keep the condenser always fixed in its correct position without the workman having to trouble in the least to watch this position.
  • the bottom of the channel of the condensei1 has a profile 22 as seen in greater detail in Figure 5, with the object of giving to the passage of the sliver through the interior of the condenser a tendency to layits front part against the roller l 3 thus causingv the condenser to deliver the condensed sliver already in contact with roller 3.
  • the aperture in this condenser has a diameter corresponding to the diameter of the rod only on a small extension of its central part 24, whilst the end parts 23 of thisl aperture are of a diameter substantially greater in order that it should not touch the rod I3, or they may be conical.
  • these parts 23 serve as a protection, preventing the fibre-ends that might adhere to the rod I3 from getting in as far as part 24 by which the condenser slides over the rod.
  • the aperture 23, 24 may also be opened or slotted towards the upper part, forming a longitudinal groove narrower than the rod I3, so that if any fibre-ends should happen to get into the opening 24, they can come out through this upper groove.
  • the condenser II may oscillate easily in relation to the rod I3 and, in this way, even in cases where as a result of the thickness of the sliver, the roller I 0 and the framework are pushed slightly out of their theoretically normal position, the condenser II remains in correct position.
  • the invention comprises an arrangement to act mechanically on the condenser, giving it a to-and-fro movement corresponding to that of the sliver.
  • the sliver guide bar 8 of the spin-- ning machine which gives theto-and-fro movement to the sliver, one or more knees or angle ties 25 whose ends 26 are introduced between two projections or prolongations 2'I of' a bar 28 extending along the whole length of the machine, and guided in such a manner that it can follow the to-and-fro movement of the knees 25 and the guide bar 8.
  • the bar 28 has at theipoints corresponding to each condenser II a. slot 29 slightly wider than the condenser, so that the condenser fits into this slot and receives a reciprocating movement equal to that of the bar 28,
  • a drawing mechanism for textile slivers comprising a series of pairs of rollers each said pair having an upper and a lower roller, a conducting roller for the sliver resting freely on the lower rollers of two consecutive pairs of said rollers, the ends of said conducting roller being severally provided with a recess, a Vframe coupled to the said conducting roller and including a lower straight central rod portion, and a condenser for the sliver slidably mounted on said lower straight central rod portion of said frame, two lateral branches on said frame each terminating in an eyelet fitted in one of the said recesses in the ends of said conducting roller thereby pivotingl the said roller for rotary movement with respect to the said frame, and means for imparting reciprocating movement to the said sliver condenser corresponding to a transverse movement of the sliver.
  • a drawing mechanism for slivers as deiined in claim 1, the said means for imparting reciproeating movement to said condenser comprising a sliver guide bar attached to said mechanism, means for moving the said sliver guide bar in a reciprocating motion, a bar attachedto said sliver guide bar and slidably mounted under the said condenser of said mechanism, the said bar hav.. ing notches therein whereby the said condenser of said mechanism, by contact with said notches is vimparted a reciprocating motion corresponding to the movement of the said sliver guide bar.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US584383A 1944-04-14 1945-03-23 Drawing mechanism for textile slivers Expired - Lifetime US2422444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES590746X 1944-04-14

Publications (1)

Publication Number Publication Date
US2422444A true US2422444A (en) 1947-06-17

Family

ID=8245706

Family Applications (1)

Application Number Title Priority Date Filing Date
US584383A Expired - Lifetime US2422444A (en) 1944-04-14 1945-03-23 Drawing mechanism for textile slivers

Country Status (5)

Country Link
US (1) US2422444A (en(2012))
BE (1) BE463687A (en(2012))
FR (1) FR910161A (en(2012))
GB (1) GB590746A (en(2012))
NL (2) NL70507C (en(2012))

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450251A (en) * 1945-04-13 1948-09-28 Casablancas High Draft Co Ltd Collector for textile drafting mechanisms
US2771639A (en) * 1950-07-03 1956-11-27 Aymerich Jose Maria Bosch System for drafting fibrous materials
US2943364A (en) * 1956-06-13 1960-07-05 Estirajes Balmes S A Drawing mechanisms for textile rovings
US3007211A (en) * 1954-04-09 1961-11-07 Estirajes Balmes S A Drawing mechanisms for textile machines
US3051997A (en) * 1957-07-31 1962-09-04 Alsacienne Constr Meca Textile fiber drawing device
US5379488A (en) * 1992-08-20 1995-01-10 Hans Stahlecker Sliver guiding arrangement for drafting units of spinning machines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1037336B (de) * 1952-11-11 1958-08-21 Estirajes Balmes S A Luntenverdichter fuer Spinnmaschinenstreckwerke

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1313164A (en) * 1919-08-12 Fernando casablancas
GB374686A (en) * 1931-08-10 1932-06-16 Jules Louis Victor Paillet Improvements in the drawing heads or drawing mechanism of spinning frames
US1926475A (en) * 1930-03-17 1933-09-12 Casablancas Fernando Condensing or reducing device for textile slivers
US1992121A (en) * 1932-03-05 1935-02-19 Casablancas Fernando Condensing or reducing device for textile rovings
CH180935A (de) * 1935-03-11 1935-11-30 Aeberli Arnold Luntenverdichter an Streckwerken.
US2205701A (en) * 1937-06-30 1940-06-25 Solanas Ramon Balmes Drawing mechanism for textile slivers
US2272787A (en) * 1940-11-13 1942-02-10 Swift Mfg Company Drafting apparatus for textile rovings

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1313164A (en) * 1919-08-12 Fernando casablancas
US1926475A (en) * 1930-03-17 1933-09-12 Casablancas Fernando Condensing or reducing device for textile slivers
GB374686A (en) * 1931-08-10 1932-06-16 Jules Louis Victor Paillet Improvements in the drawing heads or drawing mechanism of spinning frames
US1992121A (en) * 1932-03-05 1935-02-19 Casablancas Fernando Condensing or reducing device for textile rovings
CH180935A (de) * 1935-03-11 1935-11-30 Aeberli Arnold Luntenverdichter an Streckwerken.
US2205701A (en) * 1937-06-30 1940-06-25 Solanas Ramon Balmes Drawing mechanism for textile slivers
US2272787A (en) * 1940-11-13 1942-02-10 Swift Mfg Company Drafting apparatus for textile rovings

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450251A (en) * 1945-04-13 1948-09-28 Casablancas High Draft Co Ltd Collector for textile drafting mechanisms
US2771639A (en) * 1950-07-03 1956-11-27 Aymerich Jose Maria Bosch System for drafting fibrous materials
US3007211A (en) * 1954-04-09 1961-11-07 Estirajes Balmes S A Drawing mechanisms for textile machines
US2943364A (en) * 1956-06-13 1960-07-05 Estirajes Balmes S A Drawing mechanisms for textile rovings
US3051997A (en) * 1957-07-31 1962-09-04 Alsacienne Constr Meca Textile fiber drawing device
US5379488A (en) * 1992-08-20 1995-01-10 Hans Stahlecker Sliver guiding arrangement for drafting units of spinning machines

Also Published As

Publication number Publication date
FR910161A (fr) 1946-05-29
BE463687A (en(2012))
GB590746A (en) 1947-07-28
NL70507C (en(2012))
NL63508C (en(2012))

Similar Documents

Publication Publication Date Title
US3090081A (en) Fiber handling arrangement and process
US2262589A (en) Textile manufacture
US2422444A (en) Drawing mechanism for textile slivers
US2206232A (en) Apparatus for drafting textile slivers or rovings
US2203423A (en) Long draft apparatus
US2522332A (en) Textile drafting apparatus
US2641804A (en) Process and apparatus for converting textile fibers
US2430611A (en) Drawing mechanism for spinning and roving frames
US2202755A (en) Mechanism for drawing textile
CN100402722C (zh) 牵伸和集合纤维条的装置
US2187830A (en) Drafting mechanism for rovings, slivers, and the like
US3105998A (en) Raboisson
US2683290A (en) Fiber condensing means for use in preparatory and spinning machines
US3651631A (en) Arrangement for traversing a yarn in two directions
US3131438A (en) Fiber handling drafting roll apparatus and method of use
US2175107A (en) Mechanism for drawing textile rovings
US3347475A (en) Yarn traversing mechanism
US3404434A (en) Fiber drafting system
US2621376A (en) Condenser for textile fibers
US2633607A (en) Clip
US2626431A (en) Textile drafting
US1080794A (en) Bobbin-stripping machine.
US1936443A (en) Draft roll
US557485A (en) Island
US2208174A (en) High draft mechanism for cotton flier and spinning frames