US2588420A - Textile drafting mechanism - Google Patents

Textile drafting mechanism Download PDF

Info

Publication number
US2588420A
US2588420A US44907A US4490748A US2588420A US 2588420 A US2588420 A US 2588420A US 44907 A US44907 A US 44907A US 4490748 A US4490748 A US 4490748A US 2588420 A US2588420 A US 2588420A
Authority
US
United States
Prior art keywords
apron
roll
rolls
sliver
fibers
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
US44907A
Other languages
English (en)
Inventor
Benjamin C Shaw
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.)
Saco Lowell Shops
Original Assignee
Saco Lowell Shops
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
Priority to GB672728D priority Critical patent/GB672728A/en
Application filed by Saco Lowell Shops filed Critical Saco Lowell Shops
Priority to US44907A priority patent/US2588420A/en
Priority to FR993383D priority patent/FR993383A/fr
Application granted granted Critical
Publication of US2588420A publication Critical patent/US2588420A/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
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons

Definitions

  • This invention relates to mechanisms for drafting textile fibers, such as cotton, rayon, wool, and others, and mixtures of such fibers, in various stages of the manufacture of spun yarn.
  • the present invention is a further development of those disclosed in my earlier patents above designated. In general it aims to greatly extend the range of fiber length which can be successfully handled by these prior mechanisms, and also to afford a better control over all the fibers while they are being drafted, and to reduce the adjustments necessary when changing from one type of fiber, or length of staple, to another.
  • the sliver or roving being drafted is gripped firmly between the bite of a pair of upper and lower back rolls, again gripped firmly between a middle top roll and a belt or apron on which it bears and, finally, gripped firmly between the bite of the front rolls or delivery rolls.
  • the peripheral speed of the apron and the middle roll is made in the order of perhaps 1.10 to 1.25, for example, times that of the back rolls so as to produce a pretension or strength in the sliver being drafted.
  • the middle top roll is arranged to bear on a portion of a belt or apron, stretched between the middle bottom roll and a guide in such a manner as to depress the belt between these points of support so that it will be partially wrapped around the surface of said middle top roll for an angular distance of at least 30.
  • the control so afforded has proved to be very valuable.
  • good drafting requires that the distance between the positive bite at the front rolls and the positive bite between the middle top roll and the apron be made greater than the length of the majority of the fibers.
  • the shorter fibers are controlled by the yielding grip exerted on them by the apron and that portion of the surface of the middle top roll running closely adjacent to the apron as they leave the point of positive grip between these elements and approach the front rolls.
  • the present invention is based primarily on the development of the idea discovered in the manner just described.
  • Fig. 1 is a plan view of a short section of a drafting mechanism constructed in accordance with this invention and adapted for use in a spinning or roving frame;
  • Fig. 2 is a front elevation of the mechanism shown in Fig. 1;
  • Fig. 3 is a transverse, vertical section of the mechanism illustrated in Fig. i;
  • Fig. 4 is a diagrammatic view illustrating a typical setting of the drafting rolls and shows some details of the control mechanism
  • Fig. 4a is a diagrammatic view similar to Fig. 4 but modified in that the middle top roll is geared directly to the middle bottom roll so that its drive is positive;
  • Fig. 5 is a sectional elevation showing part of the means for supporting the middle top roll
  • Fig. 6 is a diagrammatic view illustrating the path which the sliver takes in passing through the drawing and control mechanisms and illustrates, on a larger scale, the relation of the elements of the control mechanism to each other;
  • Fig. 7 is a longitudinal, sectional view on the line 1-1, Fig. 4.
  • the method provided by this invention comprises the steps of feeding a sliver or roving through a drafting zone having feeding and drafting elements at opposite ends of it which exert a firm bite on the sliver, and controlling the drafting operation at a point spaced from, but closely adjacent to, the delivery end of the zone by guiding the sliver between relatively yielding elements which travel in the same direction as the sliver and at a speed only slightly greater than that at which the sliver is fed into the drafting zone.
  • Such control is attained by causing the relatively yielding surfaces of large area, between which the sliver is gripped as it passes through the control device, to apply only sufficient pressure or resistance to restrict and govern the freedom of movement of the fibers of which the sliver is composed but, nevertheless, so limiting that pressure or resistance that as the forward ends of individual fibers are positively gripped; in the bite of the drafting elements at the delivery end of the zone, they can be pulled through the control mechanism and the body of fibers yieldingly held at any instant in said control mechanism.
  • the construction shown in the drawings is organized and arranged to perform this process.
  • the machine there shown comprises front, middle and, rear bottom rolls 2, 3 and 4, top rolls 5, 6 and 7 cooperating, respectively, with them, a belt or apron 8 running over the middle lower roll 3 and the guide bar 9, and a tensioning roll IQ for this apron, the latter being controlled by the usual guide II pivoted on the horizontal bar I2.
  • this arrangement broadly is concerned, it is similar to those shown in my earlier patents and widely used in spinning and roving frames.
  • the three bottom rolls 2, 3 and 4 are driven in the customary manner by gearing located at the end of the spinning or roving frame.
  • the arrangement here illustrated differs from those used heretofore in that the front and middle bottom rolls 2 and 3 are supported'in fixed relationship to each other, the former in bearings formed in the roll stand l3 and the latter in bearing blocks 14 secured in a fixed position on the roll stand bar or arm l3, Fig. 3.
  • Supporting the rear bottom roll 4 is a bearing block l which is mounted for longitudinal adjustment on the bar [3 toward and from the middle roll, and it is secured in its adjusted ⁇ position by the bolt I6.
  • the sections of the apron bar may be supported approximately end to end in the customary manner in slots formed in the roll stand or in the bearing blocks l4.
  • the front and rear top rolls 5 and I are each provided with two bosses, as is customary; and
  • a weighting mechanism comprising front and. rear weight hooks 22 and 23, the lower ends of which are pivoted to the opposite ends of a rocker or spreader bar 24, Fig. 3.
  • a link 25, pivoted to the central portion of this rocker bar, is provided at its lower end with a hook which releasably engages a pin 23 secured in the flanges of a channel-shaped lever 21 fulcrumed at 28 on the roll beam 30.
  • a plunger 3i is forced upwardly by a spring 32 against said lever and operates through the connections just described to weight both top rolls 5 and l.
  • the middle top roll 6 is independently weighted by a spring hook 33, Fig. 3, pivoted on a small bracket 34 which is secured rigidly to the apron bar 9.
  • the overall draft is produced by the difference in speed of the delivery rolls 2 and 5 as compared to that of the holding rolls 4 and I.
  • the lower rolls preferably are finely flutedand machined accurately, and the upper rolls are covered with an elastic material, such as synthetic rubber, of sufficient firmness to cooperate with the lower rolls to produce a dependable bite but still having sufficient softness and elasticity to conform to variations in cross-sectional shape of the sliver being fed between them.
  • the front top roll 5 especially should be heavily weighted.
  • the heart of this invention is the control mechanism and its relation to the other elements of the machine. As best shown in Figs. 3 and 6 it comprises the middle top roll 6, the apron B, and the support for said apron afforded by the apron bar 9 and the middle bottom roll 3 which also drives the apron. These two lastmentioned parts support the apron.
  • the top roll 5 is pressed against that portion of the apron between the lower middle roll 3 and the apron bar 9 sufficiently hard to produce a sag or curve in the apron and the roving while they move through this area, as in my patents above mentioned.
  • the movement of the top roll 6 toward the parts 3 and 9 is definitely limited by the fact that the metal body portion of the roll 6 is cut away to receive the resilient body R, Fig. '7, but the metal roll parts at the opposite ends R of this body are made at least as large in diameter, and often from ten to fifteen thousandths of an inch larger than the elastic section.
  • These solid ends of the roll bear on the apron and, in the preferred form of my apparatus, perform three functions, as follows:
  • the elastic body R is made smaller in diameter than the ends R, then a clearance of predetermined degree is maintained between the fiber contacting surface of this middle top roll and the apron.
  • Such clearance is highly useful in limiting the degree of pressure with which this roll and the apron grip the sliver as the latter travels through the control mechanism.
  • the roll ends take the weight applied to the roll, its middle cushion section, in effect, is unweighted except when it bears on a sliver.
  • the body R should be made of a soft, elastic composition, such as rubber, either natural or synthetic, (the latter being prefer-red) so that the pressure with which the sliver is held between this rubber body and the apron is a soft, yielding or cushioned grip.
  • the rubber composition should have a very low Shore durometer reading, say from 15 to 25, or thereabouts. It will be understood, however, that the degree of grip required may vary with the nature of the fibers of which the sliver is composed and with the size of the sliver and the yarn to be spun from it. In exceptional cases, especially if the apron is thick and has a good degree of resilience, a clearance alone (i. e. with no rubber cushion) of, say, ten thousandths of an inch, or thereabouts, between the metal surface of the roll and the apron is sufiicient for some, of the purposes of this invention.
  • the degree and quality of this cushioning grip desired for the purposes of this invention may be further increased and predetermined by cutting a circumferential groove in the lower roll 3, narrower than the width of the apron, and preferably about the axial length of the cushion R in the upper roll.
  • Such grooves are shown at C in Fig. 7. They provide spaces in the lower roll into which each apron can be yieldingly depressed by the sliver or roving as it is fed between each top roll and its respective apron.
  • the cushioning effect desired can be produced in either the top roll or the bottom roll, or they can be combined to afford a maximum of yield or softness, as desired.
  • a definite minimum clearance of about onesixteenth of an inch also is maintained between the ends of the roll 5 and the top of the apron bar 9. thirty-second of an inch in thickness, this provides a clearance, radially opposite the aproncontacting ends of the roll and before where the apron is drawn over the nose of the apron bar, of about one thirty-second of an inch. Thisresult is accomplished by mounting rotary collars or disks B, Figs. 5 and 7, on the opposite ends of the metal core or body of the roll where they rest on stationary steps or shelves 35 on the apron bars 9 and thus positively limit the movement of the roll toward the apron bar.
  • This grip is so limited as to permit theslip through the grist or body of fibers held between each middle top roll and its cooperating apron of those fibers, the forward ends of which are firmly exerting a delaying or retarding action on those Because the apron usually is "about one' 6 fibers not so gripped. This action closely resembles the control which a hand spinner applies with her thumb and forefinger as she allows a roving to slip slowly through her hand to the spindle while she revolves the spinning wheel. She governs the degree of draft in this way.
  • sliver meets the roll at the point T and is held against the roll up to the point T where it passes out of contact with it. Consequently, long fibers in the grip of the delivery rolls, and which extend back through the control mechanism perhaps for three or four inches, and often more, can be pulled through the body of fibers held in the corn trol region T to T, but the force required to do so is much greater than would be required if this path were straight.
  • This mechanism will operate on the entire range of fibers used in the textile industry, whether they consist of cotton, wool, rayon, vegetable or synthetics, or mixtures of such fibers, and whether the staple is short, or is the longest wool.
  • short fibers such as cotton
  • a considerable proportion will not reach from the delivery rolls into the grist held under pressure in the control mechanism, so that the latter does not act on the tail ends of these shorter fibers while their forward ends are being pulled through by the delivery rolls, but these fiber tail ends are restrained by other fibers on which this control mechanism does act while they are being pulled forward .by the front rolls so that a substantial degree of control over the shorter fibers is exerted by this mechanism.
  • the spacing of the control mechanism from the front rolls is never changed, but the rear rolls customarily are spaced from the front rolls by a distance slightly greater than the maximum fiber length of the sliver being operated upon.
  • the extreme spacing may vary from a minimum of about three inches to a maximum of nine inches, or more.
  • the control mechanism should be positioned as close to the front rolls as is practical for smooth running, cleaning, accommodation of a trumpet, and similar considerations.
  • the relation of the speeds at which the bottom rolls 2 and 4 are driven will be selected to produce the desired draft, and that can be from a very low value, such as five or six, to extremely high values, say fifty, or even more. It is intended that the relative speeds of the rolls 3 and 4 will be standardized at a low. ratio, such as between 1 to 1.10 and 1 to 1.60, and that the only roll speed which will be adjusted is that of the back bottom roll 4 which will be changed by a suitable adjustment of the overall-draft-change gear. Preferably the rolls 3 and 4 are geared directly together so that their ratio remains unchanged by the adjustment of the speed of the latter.
  • the front and rear rolls can be geared together through a change gear mechanism so that the rear roll will be driven from the front roll and the speed relationship between them can be adjusted in accordance with the desired draft.
  • the speed of the middle bottom roll 3 which drives the apron, and from which the middle top roll is driven is made only sufficient to maintain the length of the sliver between the holding rolls 4 and I and the middle rolls taut. It is not intended that there shall be any draft in this region, but it is desirable to take up the stretch in this section. of the slivers-This is particularly true when wool or other naturally curly fibers are present in the composition of the sliver.
  • strands being drafted have generally been referred to above as slivers, that term being used in a generic sense to include any material capable of being drafted in a mechanism of the character here disclosed.
  • a drafting mechanism of the character described having a drafting zone comprising a pair of delivery rolls at one end and a pair of holding rolls at its opposite end, means supporting said rolls to act simultaneously on portions of a sliver spaced apart by a distance greater than the average fiber length of the sliver to feed and draft it, mechanism for revolving said roll-s at the speeds necessary to produce the desired draft, and a rotary fiber control mechanism mounted between said pairs of rolls and through which said sliver is drawn by said delivery rolls, said control mechanism comprising an endless underlying sliversupporting apron, a lower apron driving roll within said apron, an upper roll in contact with This space is valuable said apron and mounted above said driving roll and said apron, one of said rolls having diiferent effective diameters, the outer peripheral end portions of said roll having a diameter sufficient to provide firm pressure contact of said end portions with said apron, the central portion of said roll having a smooth peripheral surface and being of lesser effective diameter to provide between
  • a drafting mechanism of the character described having a drafting zone comprising a pair of delivery rolls at one end and a pair of holding rolls at its opposite end, means supporting said rolls to act simultaneously on portions of a sliver spaced apart by a distance greater thanthe average fiber length of the sliver to feed and draft it, mechanism for revolving said rolls at the speeds necessary to produce the desired draft, and a rotary fiber control mechanism mounted between said pairs of rolls and through which said sliver is drawn by said delivery rolls, said control mechanism comprising an endless underlying sliversupporting apron, a lower apron driving roll within said apron, an upper roll in contact with said apron and mounted above said driving roll and said apron, said upper roll having different effective diameters, the outer peripheral end portions of said roll having a diameter sufficient to provide firm pressure contact of said end portions with said apron, the central portion of said roll having a smooth peripheral surface and being of lesser effective diameter to provide a light frictional grip on the fibers of
  • a drafting mechanism of the character described having a drafting zone comprising a pair of delivery rolls at one end and a pair of holding rolls at its opposite end, means supporting said rolls to act simultaneously on portions of a sliver spaced apart by a distance greater than the average fiber length of the sliver to feed and draft it, mechanism for revolving said rolls at the speeds necessary to produce the desired draft, and a rotary fiber control mechanism mounted between said pairs of rolls and through which said sliver is drawn by said delivery rolls, said control mechanism comprising an endless underlying sliversupporting apron, a lower apron driving roll within said apron, an upper roll in contact with said apron and mounted above said driving roll and said apron, said upper roll having different effective diameters, the outer peripheral end portions of said roll having a diameter suflicient to provide firm pressure contact of said end portions with said apron, the central portion of said roll having a smooth peripheral surface and being of lesser actual diameter to provide a light frictional grip on the
  • a drafting mechanism of the character described having a drafting zone comprising a pair of delivery rolls at one end and a pair of holding rolls at its opposite end, means supporting said rolls to act simultaneously on portions of a sliver spaced apart by a distance greater than the average fiber length of the sliver to feed and draft it, mechanism for revolving said rolls at the speeds necessary to produce the desired draft, and a nism comprising an endless underlying sliversupporting apron, a lower apron driving roll within said apron, an upper roll in contact with said apron and mounted above.
  • said driving roll and said apron said lower roll having different effective diameters, the outer peripheral end portions of said roll having a diameter sufficient to provide firm pressure contact of said end portions with said apron, the central portion of said roll having a smooth peripheral surface and being of lesser effective diameter to provide a light frictional grip on the fibers of the sliver being drafted between said apron and said upper roll.
  • a drafting mechanism of the character described having a drafting zone comprising a pair of delivery rolls at one end and a pair of holding rolls at its opposite end, means supporting said rolls to act simultaneously on portions of a sliver spaced apart by a distance greater than the average fiber length of the sliver to feed and draft it, mechanism for revolving said rolls at the speeds necessary to produce the desired draft, and a rotary fiber control mechanism mounted between said pairs of rolls and through which said sliver is drawn by said delivery rolls, said control mechanism comprising an endless underlying s1iversupporting apron, a lower apron driving roll within said apron, an upper roll in contact with said apron and mounted above said driving roll and said apron, said lower roll having different effective diameters, the outer peripheral end portions of said roll having a diameter suificient to provide firm pressure contact of said end portions with said apron, the central portion of said roll having a smooth peripheral surface and being of lesser actual diameter to provide a light frictional grip on the
  • a drafting mechanism of the character described having a drafting zone comprising a pair of delivery rolls at one end and a pair of holding rolls at its opposite end, means supporting said rolls to act simultaneously on portions of a sliver spaced apart by a distance greater than the average fiber length of the sliver to feed and draft it, mechanism for revolving said rolls at the speeds necessary to produce the desired draft, and a rotary fiber control mechanism mounted between said-pairs of rolls and through which said sliver is drawn by said delivery rolls, said control mechanism comprising an endless underlying sliversupporting apron, a lower apron driving roll within said apron, an upper roll in contact with said apron and mounted above said driving roll and said apron, said upper roll having different effective diameters, the outer peripheral end portions of said roll having a diameter sufficient to provide firm pressure contact of said end portions with said apron, the central portion of said roll having a resilient smooth peripheral surface and being of lesser effective diameter to provide a light frictional grip on
  • the drafting mechanism as claimed in claim 1 further including an apron bar and means mounted adjacent the apron bar positively limiting bodily movement of said upper roll toward said apron bar.
  • a drafting mechanism of the character described having a drafting zone comprising a pair of delivery rolls at one end and a pair of holding rolls at its opposite end, means supporting said rolls to act simultaneously on portions of a sliver spaced apart by a distance greater than the average fiber length of the sliver to feed.
  • control mechanism comprising an endless underlying sliver supporting apron, a lower apron drivin roll within said apron, an upper roll in contact with said apron and mounted above said driving roll and said apron, said upper roll having outer peripheral end portions and a central portion, said end portions each having a diameter at least as great as that of said central portion and being constructed to provide firm pressure contact with said apron, said central portion having a smooth peripheral surface and being constructed to provide a light frictional grip on the fibers of the sliver being drafted between said apron and said upper roll.
  • a drafting mechanism of the character described having a drafting zone comprising a pair of delivery rolls at one end and a pair of holding rolls at its opposite end, means supporting said rolls to act simultaneously on portions of a sliver spaced apart by a distance greater than the average fiber length of the sliver to feed and draft it, mechanism for revolving said rolls at the speeds necessary to produce the desired draft, and a rotary fiber control mechanism mounted between said pairs of rolls and through which said sliver is drawn by said delivery rolls, said control mechanism comprising an endless underlying sliver supporting apron, a lower apron driving roll within said apron, an upper roll in contact with said apron and mounted above said driving roll and said apron, said upper roll having outer peripheral end portions and a central portion, said end por- 'tions each having a diameter at least a great as that of said central portion and being constructed to provide firm pressure contact with said apron, said central portion having a clearance providing a recess and together with said
  • a drafting mechanism of the character described having a drafting zone comprising a pair of delivery rolls at one end and a pair of holding rolls at its opposite end, means supporting said rolls to act simultaneously on portions of a sliver spaced apart by a distance greater than the aver age fiber length of the sliver to feed and draft it, mechanism for revolving said rolls at the speeds necessary to produce the desired draft, and a rotary fiber control mechanism mounted between said pairs of rolls and through which said sliver is drawn by said delivery rolls, said control mechanism comprising an endless underlying sliver supporting apron, a lower apron driving roll within said apron, an upper roll in contact with said apron and mounted above said driving roll and said apron, said upper roll having outer peripheral end portions and a central portion, said end portions each having a greater diameter than that of said central portion to provide firm pressure contact with said apron, said central portion having a smooth peripheral surface to provide a light frictional grip on the fibers of the slive
  • the drafting mechanism as claimed in claim 10 further including an apron bar and means mounted adjacent the apron bar positively limiting bodily movement of said upper roll toward said apron bar.
  • a drafting mechanism of the character described having a zone comprising a pair of delivery rolls at one end and a pair of holding rolls at its opposite end, means supporting said rolls to act simultaneously on portions of a sliver spaced apart by a distance greater than the average fiber length of the sliver to feed and draft it, mechanism for revolving said rolls at the speeds necessary to produce the desired draft, and a rotary fiber control mechanism mounted between said pairs of rolls and through which said sliver is drawn by said delivery rolls, said control mechanism comprising an endless underlying sliver supporting apron, an apron bar within said apron, a lower apron driving roll within said apron, an upper roll in contact with said apron and mounted above and forwardly of said driving roll and above said apron, said upper roll having outer peripheral apron-contacting end portions and a central portion therebetween, said end portions each having a diameter at least as great as that of said central portion and being constructed and mounted with said apron-contacting end
  • the drafting mechanism as claimed in claim 13 further including gearing connecting said lower apron driving roll and said upper roll to positively drive said upper roll.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US44907A 1948-08-18 1948-08-18 Textile drafting mechanism Expired - Lifetime US2588420A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB672728D GB672728A (US06623731-20030923-C00052.png) 1948-08-18
US44907A US2588420A (en) 1948-08-18 1948-08-18 Textile drafting mechanism
FR993383D FR993383A (US06623731-20030923-C00052.png) 1948-08-18 1949-08-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44907A US2588420A (en) 1948-08-18 1948-08-18 Textile drafting mechanism

Publications (1)

Publication Number Publication Date
US2588420A true US2588420A (en) 1952-03-11

Family

ID=21934970

Family Applications (1)

Application Number Title Priority Date Filing Date
US44907A Expired - Lifetime US2588420A (en) 1948-08-18 1948-08-18 Textile drafting mechanism

Country Status (3)

Country Link
US (1) US2588420A (US06623731-20030923-C00052.png)
FR (1) FR993383A (US06623731-20030923-C00052.png)
GB (1) GB672728A (US06623731-20030923-C00052.png)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689383A (en) * 1951-06-11 1954-09-21 Saco Lowell Shops Drafting mechanism
US2734232A (en) * 1956-02-14 bodell
DE1021280B (de) * 1952-08-18 1957-12-19 Collins & Aikman Corp Unterriemchen-Streckwerk
US2955329A (en) * 1955-08-19 1960-10-11 Howa Machinery Ltd Draft assembly capable of drafting sliver or roving in a spinning frame
US3020621A (en) * 1959-12-03 1962-02-13 Du Pont Draw roll
US3105998A (en) * 1959-04-10 1963-10-08 Raboisson
US20050241125A1 (en) * 2004-04-30 2005-11-03 Kenji Hasegawa Fastening member removing force measuring device and holding device
CZ302816B6 (cs) * 2010-05-04 2011-11-23 Šafár@Václav Zpusob protahování vlákenných útvaru a zarízení k provádení zpusobu
CN106609406A (zh) * 2015-10-22 2017-05-03 索若德国两合股份有限公司 牵伸单元和用于牵伸单元的轴的轴承

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968509C (de) * 1952-03-15 1958-02-27 Zinser Textilmaschinen Gmbh Spannvorrichtung fuer Streckwerksunterriemchen an Spinn- und Vorspinnmaschinen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1827385A (en) * 1929-04-05 1931-10-13 Schatt
US2074556A (en) * 1933-03-11 1937-03-23 Pilz Josef Drawing mechanism of spinning machines
US2233963A (en) * 1938-06-13 1941-03-04 Saco Lowell Shops Drawing mechanism for textile fibers
US2255821A (en) * 1939-01-24 1941-09-16 Schlipp Ludwig Double tape drawing frame for spinning and similar machines
US2329655A (en) * 1941-02-17 1943-09-14 Saco Lowell Shops Drafting mechanism for spinning and roving frames
US2471056A (en) * 1946-02-02 1949-05-24 Collins & Aikman Corp Apparatus for drafting textile fibers
US2471057A (en) * 1945-12-18 1949-05-24 Collins & Aikman Corp Method and apparatus for drafting textile fibers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1827385A (en) * 1929-04-05 1931-10-13 Schatt
US2074556A (en) * 1933-03-11 1937-03-23 Pilz Josef Drawing mechanism of spinning machines
US2233963A (en) * 1938-06-13 1941-03-04 Saco Lowell Shops Drawing mechanism for textile fibers
US2255821A (en) * 1939-01-24 1941-09-16 Schlipp Ludwig Double tape drawing frame for spinning and similar machines
US2329655A (en) * 1941-02-17 1943-09-14 Saco Lowell Shops Drafting mechanism for spinning and roving frames
US2471057A (en) * 1945-12-18 1949-05-24 Collins & Aikman Corp Method and apparatus for drafting textile fibers
US2471056A (en) * 1946-02-02 1949-05-24 Collins & Aikman Corp Apparatus for drafting textile fibers

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734232A (en) * 1956-02-14 bodell
US2689383A (en) * 1951-06-11 1954-09-21 Saco Lowell Shops Drafting mechanism
DE1021280B (de) * 1952-08-18 1957-12-19 Collins & Aikman Corp Unterriemchen-Streckwerk
US2955329A (en) * 1955-08-19 1960-10-11 Howa Machinery Ltd Draft assembly capable of drafting sliver or roving in a spinning frame
US3105998A (en) * 1959-04-10 1963-10-08 Raboisson
US3020621A (en) * 1959-12-03 1962-02-13 Du Pont Draw roll
US20050241125A1 (en) * 2004-04-30 2005-11-03 Kenji Hasegawa Fastening member removing force measuring device and holding device
US7204159B2 (en) * 2004-04-30 2007-04-17 Ykk Corporation Fastening member removing force measuring device and holding device
CZ302816B6 (cs) * 2010-05-04 2011-11-23 Šafár@Václav Zpusob protahování vlákenných útvaru a zarízení k provádení zpusobu
CN106609406A (zh) * 2015-10-22 2017-05-03 索若德国两合股份有限公司 牵伸单元和用于牵伸单元的轴的轴承
CN106609406B (zh) * 2015-10-22 2019-03-01 索若德国两合股份有限公司 牵伸单元和用于牵伸单元的轴的轴承

Also Published As

Publication number Publication date
GB672728A (US06623731-20030923-C00052.png) 1900-01-01
FR993383A (US06623731-20030923-C00052.png) 1951-10-30

Similar Documents

Publication Publication Date Title
US2588420A (en) Textile drafting mechanism
US2565228A (en) Drawing mechanism for spinning and roving frames
US2238659A (en) Fiber drawing mechanism and process
US2471057A (en) Method and apparatus for drafting textile fibers
US3105998A (en) Raboisson
US2323882A (en) Drafting mechanism for roving frames
US2304885A (en) Yarn drafting process
GB1332790A (en) Production of fancy yarns
US2951266A (en) Drafting mechanism
US2771639A (en) System for drafting fibrous materials
US2260130A (en) Spinning and roving frame
US2233963A (en) Drawing mechanism for textile fibers
US2880566A (en) Process and apparatus for producing covered elastic thread
US2089021A (en) Asbestos yarn
US2689383A (en) Drafting mechanism
US2624074A (en) Roller-type drafting apparatus of textile spinning and analogous machinery
US2645822A (en) Drafting textile fibers
US2175107A (en) Mechanism for drawing textile rovings
US2582213A (en) Drawing mechanism for textile fibers
US2640228A (en) Mechanism for drafting rayon tow
US1804968A (en) Manufacture of yarn
US1973581A (en) Drawing frame
US3060669A (en) Drafting apparatus
US2568502A (en) Drafting apparatus
US2471056A (en) Apparatus for drafting textile fibers