US2814939A - Yarn processing device - Google Patents

Yarn processing device Download PDF

Info

Publication number
US2814939A
US2814939A US343734A US34373453A US2814939A US 2814939 A US2814939 A US 2814939A US 343734 A US343734 A US 343734A US 34373453 A US34373453 A US 34373453A US 2814939 A US2814939 A US 2814939A
Authority
US
United States
Prior art keywords
processing
belts
roller
thread
belt
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
US343734A
Other languages
English (en)
Inventor
Severini Goffredo
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.)
STUDI E BREVETTI APPLIC TESSIL
Studi E Brevetti Applicazioni Tessili S R L
Original Assignee
STUDI E BREVETTI APPLIC TESSIL
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 STUDI E BREVETTI APPLIC TESSIL filed Critical STUDI E BREVETTI APPLIC TESSIL
Application granted granted Critical
Publication of US2814939A publication Critical patent/US2814939A/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
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
    • D01D10/0445—Supporting filaments or the like during their treatment while in continuous movement using rollers with mutually inclined axes

Definitions

  • Thread-storing thread-advancing devices to be satisfactory muststore a sufiicient length of thread to allow all of the-desired treatments to be efiiciently efiected and at-the same time must have a limited bulk. Further, they'should render possible a perfect separation of the various processingv liquorsappliedto the thread-which should not'contaminate one another in order thatthey may conveniently be re-cycled and recovered.
  • Orie'class of'threadstoring and advancingdevice comprises a processing roller divided into several zones correspbiidin'g each to one wet or dry. treatment, and an advancingroller' askew to the processing roller, to cause the thread wound about both rollers continuouslyto advance along a substantially helicahpath when the roll ers rotatei It'has been-already proposed-to separatethe various wet processing zones by means of flanges or the like, collectingtl le'liquors that drip from the processing roller in a trough divided into cells corresponding each to a wet processing one.
  • thread guides must be provided to guide the thread overthe separation flanges and each guide determines an angle in the trajectory of the thread, causing a friction-which may be particular- 1y undesirable when the threadis still incompletely coagulated.
  • the threading-up. of such devices may be effected by formingra ring or cake of thread about both rollers and by allowing. it to advance along the device.
  • the ring. contacts the first flange, it stops there and must be passed over the flange and engaged with the respective thread guide,.either by means of complicated and impractical mechanism or by a manual operation which may be -effected only if'every point of the" device is easily accessible.
  • One object of this invention is to provide a threadstoring. thread advancing v device of the class described wherein the processing liquors are separated, even when used in large amounts; as'efi'ectively as by the use of: flenges, and yet no angles are createdin the trajectory of separation belts aretangent to the supporting therthread and no manualoperations or mechanisms are required for the threading-up.
  • Another object is to provide a device wherein the lengths of the several processing. zones and even their number can be easily. varied. Other objects of the invention will appear as the description proceeds.
  • the separation elements between the several wet-processingzones consist of belts of a suitable flexible material engaging the periphery of the processing roller along a sufii'ciently extended arc, preferably an arc corresponding at least to that portion of said periphery which is wetted by the processing, liquors.
  • Other rotatable supportingmeans such as an auxiliary roller or a plurality of ulleys, are provided to cooperate with the processing roller to support the belts in a particular position that will now be geometrically defined.
  • supporting surface the simplest surface on which the trajectory of the thread, in the: storing. and advancing device, entirely lies: actually the. supporting surface comprises a portion of the periphery ofthe processing roller (that portionwhich. is contacted by the thread) a like portion of the periphery, of 'the advancing roller, and two portions of ruled surfaces the. generators whereof are tangent, on one and on the. other side respectively, to the two rollers.
  • the expression supporting surface and its defihition arepurely geometric in character and'the word supporting.” does not imply any material support. Now, the surface at processing roller, while elsewhere they are at least in part and may be wholly external thereto; at any rate, they never intersect. such surface.
  • the ratio between the portion wherein belts and supporting surface contacteach other and the portion wherein no such contact exists may vary according to. cases.
  • the word external further does not imply any considerable distance between the belts and the supporting; surface, while on the contrary even a very small distance and along a. small portion of the beltsmay sufiice. It has been found-a fact that could not be foreseen and. is suprising-that in these conditions the thread insinuates itself between the belts and the processing roller and proceeds in its travel practically as if the belts: themselves did not exist, though said belts are wholly effective asseparation elements between the several liquors.
  • the supporting means hereinbefore mentioned should be fartheraway from the processingroller thanthe advancing roller, and preferably in the same general direction. They should rotate about axes parallel to that of the processing roller so that the belts, while takingpart in the rotation of the processing roller, may not advance along the device.
  • Fig. 1 is a perspective representation of a part. of a the periphery of the device according to a first embodiment of the: invention
  • Fig. 2- represents the devi end
  • Fig. 3 is a sectional view at a larger scale of a. detail of a second embodiment
  • Figs. 4 and 5 are similar to Figs. 1 and 2 respectively, but illustrate a third embodiment
  • Fig. 6 is a lateral view of a detail of a fourth embodiment
  • Fig. 7 is a lateral view of a detail of a further embodi ment
  • Fig.8 is a sectional view at a larger scale of a detail of another embodiment of the invention.
  • Figs. 9, l0 and 11 are lateral views of details of a. further embodiment of the invention.
  • numeral rep resents a thread of any kind which, by way of example and as a particular application of the invention, may be considered to be a viscose rayon thread composed of a bundle of filaments originating from a single spinning nozzle and which travels in the direction of the arrows.
  • the thread storing and advancing device illustrated comprises a processing roller 12 and an advancing roller 13 askew thereto.
  • the device also comprises an auxiliary roller 14 having its axis parallel to the axis of processing roller 12.
  • the thread 10 winds up in a succession of turns in a substantially helical configuration about rollers 12 and '13.
  • a processing zone on processing roller 12 there corresponds a processing zone on processing roller 12; zones 15, 16 and 17 have been completely indicated.
  • the separation between the several zones is achieved by means of separation belts such as 18, 19 and 20, which embrace roller 12 and auxiliary roller 14.
  • These belts are made of a sufficiently elastic material, for instance rubber or a synthetic material (vinyl, polyethylene, polyamide resins, etc.).
  • the belts have a rectangular cross section, but such section is not prescribed, indeed, often is not the most suitable, as will be explained later.
  • guides may preferably be provided for preventing any longitudinal displacement of the belts, and said guides may simply consist in forks like forks 21, 22 and 23 which straddle belts 18, 19 and 20 and hold them in a longitudinally fixed position.
  • the processing liquors may be fed to the processing roller 12 by any convenient means, for instance, through conveniently located pipes 24, 25, 26 etc.
  • the processing roller is slanted with respect to the horizontal in such a way as to cause the liquors which form a film thereon, to move in a direction opposite to the travel of the thread, thereby to create a counter-current effect: therefore the thread advances from the lowermost end (in Fig. 1, the left end), to the uppermost end of roller 12.
  • the liquors which drain from roller 12 are collected, to be re-used later, in separate vessels conveniently consisting of a single trough 27 (three walls of which are shown as broken off in the drawing) divided into separate cells, corresponding each to one processing liquor, by
  • any mixture of different liquors is avoided by locating each partition immediately before (with respect to the travel of the thread-- that is, in Fig. 1, to the left) of the corresponding belt.
  • Auxiliary roller 14 is located at a greater distance from processing roller 12 than advancing roller 13 and in the same general direction so that the separation belts remain external to the helical trajectory of the thread and the supporting surface thereof already geometrically defined, wherever they do not engage the processing roller, and at any rate never intersect such surface; obviously the belts engage roller 12 along an are that is slightly narrower than the contact arc of the thread with said roller. Under these conditions the surprising fact is observed that the thread passes between the belts and the surface of roller 12 and travels undisturbed as if the belts-which, however, are effective in separating the processing liquors-did not exist as far as the thread is concerned.
  • Fig. 3 This is schematically illustrated in Fig. 3 wherein a belt 31 having particular cross-section is shown.
  • the thread 10 passes in a succession of turns between said belt and roller 12.
  • Fig. 3 the dimensional relationships have been altered in Fig. 3 for purposes of illustration: in reality, no real gap exists between belt and roller, on the contrary, the belt is kept taut to prevent the liquors from infiltrating between it and the processing roller; The tension of the belt also exerts a beneficial squeezing action on thread 10. It has also been found-and this is even more surprising-that not only do the separation belts permit the advancement of the turns of thread, but that they also permit the advancement of the relatively thick ring of thread that is formed when the device is threaded up.
  • Said threading-up is effected by winding a certain number of turns of thread about rollers 12 and 13 to form a ring or cake of thread which is then allowed to advance freely from the initial to the final end of the device; it is during the travel of these rings that the yarn arranges itself in a succession or substantially helical turns. It is seen therefore that in this way the threading-up of the device becomes very simple and it is not necessary that the various portions thereof-with the exception of the near end, that is the end adjacent to the spinning nozzle-be accessible either for manipulation or through mechanical means.
  • the invention may also be carried into practice by guiding the separation belts in a manner different from that indicated above, while maintaining the same geometric relationship between said belt and the thread path.
  • One particularly simple means differing from that of Figs. 1 and 2, is illustrated in Figs. 4 and 5. Only the first two belts 33 and 34 are shown therein, and said belts are guided each by processing roller 12 and by a small pulley 35 and 36 respectively. If said pulley is grooved, the belt cannot become longitudinally displaced and all auxiliary guides of the type of forks 21 to 23 of Fig. 1 may be omitted.
  • the belts may be guided, no departure from the scope of the invention would be involved in introducing other rollers or, pulleys or auxiliary guide means, thereby causing the belts to assume a configuration differing from that illustrated and more complex, even if in such a manner the separation between the belts and the supporting surface should increase or decrease even to a very considerable extent.
  • the invention makes it possible to achieve another noteworthy new result, that is to vary the length of the various processing zones without substituting any parts of the device and even, in certain cases, while the device is in operation.
  • This can be easily done, for instance in the embodiment of Figs. 1 and 2 by slidably mounting forks 21, 22, 23 etc. on a single support, such as a rod 37, and by fixing said forks by means of set screws 55, 56, 57 etc. or other means that are too obvious to require illustration, in any desired position on said support; or in the embodiment of Figs.
  • Fig. 3 shows one particularly efiicient cross-section; the belt 31 is provided therein with two projections 40-40 having the character of flanges which define a central groove 41.
  • the partition 42 of a trough 43 similar to 'trough' 27 of Fig. 1, or at any rate the wall of a collecting vessel for" the processing liquor which corresponds to the particular separationbelt under consideration, faces groove 41. Under such conditions the liquor coming from the right in Fig. 3 will be stopped by projection 40 and will drain from roller 12 into the vessel or cell to the right of partition 42. It will not be necessary to make sure that the liquor coining.
  • grooved separation belts may be made with different shapes, or two simple belts may be placed close to each other so as to leave a gap therebetween wherein partition 42 or the like will extend or which said partition will face, or more grooves or gaps may be defined, or any shape or combination of parts according to the same principle may be adopted.
  • Fig. 6 shows an embodiment wherein the belts have the shape of Fig. 3 and are mounted on grooved pulleys as in Figs. 4 and 5.
  • Fig. 7 shows a sectional lateral view of an embodiment of the device wherein separation belts 45 (three of which are shown) are provided each with two projections 46-47 and are laterally guided by forks 48, similar to the forks 212223 of Fig. 1, each mounted on a sleeve 49 laterally slidable on a guide shaft 50 and provided with a set screw 51.
  • the liquor collecting vessel generally indicated at 52 is divided into cells by partitions 53, and each partition 53 faces a recess 54 between the two projections 46-47 of a separation belt 45.
  • Fig. 8 shows by way of example another cross-section that may be adopted for the separation belts, therein identified by numerals 80, 81.
  • Fig. 9 shows a similar embodiment, wherein, however, the belts 45 (only one of which is shown) instead of being passed about the processing roller 12 and an auxiliary roller 14 as in Fig. 7, are passed about the processing roller 12 and grooved pulleys, such as pulley 60, wholly analogous to pulleys 35-36 of Fig. 4, but provided, in stead of with set screws, with an additional groove 66 which is engaged by the end of a lever 67 having a slot 68 which engages a pivot 69 fixed to the frame of the machine.
  • the belts 45 instead of being passed about the processing roller 12 and an auxiliary roller 14 as in Fig. 7
  • grooved pulleys such as pulley 60, wholly analogous to pulleys 35-36 of Fig. 4, but provided, in stead of with set screws, with an additional groove 66 which is engaged by the end of a lever 67 having a slot 68 which engages a pivot 69 fixed to the frame of the machine.
  • the lever 67 is provided with a handle 70 for actuating it, and in swinging about pivot 69, it actuates the pulley 6t) longitudinally of a shaft 71 on which it is slidably supported. In this manner the belt 45 can be adjusted longitudinally of the device as desired.
  • the liquor collecting vessel is wholly analogous to the vessel of Fig. 11.
  • Fig. shows a further embodiment of the device in which the separation belts are provided in pairs, each pair separating two adjacent processing zones-of theproeessing roller.” ln the drawing-only oneof such pairof belts, 72 73, is'illustrated.
  • The-two belts are supported'by processing roller 12 and by an auxiliary roller- 14, and they are so arrangedthat a partition 74' of-theliquor collectingvessel 75'directly faces and Lprojectsinto the gap between the two belts 72 -73.
  • Eachp'aifof said forks is mounted ona sleeve 7 8' slidable'on a guide'shaft 79.
  • Sleeve 78 is connected by a link 80sui't ably supported as schematicallyindicated at 8'1, toa'cou'ple of screws 81-82 actuated hand through 'the' handle 83.
  • Fig. 11 shows a still further embodiment of the device.
  • the processing zones are separated from one another'by pairs of belts 92-993 wholly analogous to the pair of belts 72-73'of Fig. 10. Said pairs of belts, however,
  • Liquor collectingvessel 97 like vessel 75 of Fig. 10, has its partitions 98 -99 facing and projecting eachintothe gap between two adjacent belts '92 -93.
  • Device for the continuous wet processing of-textile filaments, yarns and threads comprising, in combination with a rotatable processing roller having a plurality of processing zones corresponding to the several thread processing steps and a rotatable advancing roller askew to said processing roller for advancing the thread in a substantially helical trajectory, a plurality of separation belts engaging the periphery of said processing roller each at the borderline of two adjacent processing zones, and rotatable belt supporting means peripherally engaged by said belts and cooperating with said processing roller rotatably to support said belts, said supporting means being positioned farther away from said processing roller than said advancing roller whereby said belts at no point intersect the thread supporting surface.
  • Device according to claim 1 comprising belt guides for preventing displacements of the separation belts parallel to the axis of the processing roller.
  • Device for the continuous wet processing of textile filaments, yarns and threads comprising in combination with a rotatable processing roller having a plurality of processing zones corresponding to the several thread processing steps and a rotatable advancing roller askew to said processing roller for advancing the thread in a substantially helical trajectory, a plurality of separation belts en;
  • Device comprising belt guides engaging the separation belts to prevent any displacements thereof parallel to the auxiliary roller.
  • Device comprising belt guides for preventing displacements of the belts parallel to the auxiliary roller, and means for shifting said guides along said roller.
  • a yarn processing device comprising a processing roller, a row of liquor receiving cells positioned under said processing roller, partitions separating said cells from one another, a rotatable advancing roller askew to said processing roller for advancing the threads along the processing roller in a generally helical path, a plurality of separation belts, auxiliary rotatable belt supporting means, said belts passing around said processing roller adjacent the said partitions and around said auxiliary belt supporting means, belt guides for retaining said belts in position, said auxiliary belt supporting means being positioned beyond said advancing roller so that the belts will not interfere with the advance of the yarn along said processing roller.
  • auxiliary belt supporting means are grooved pulleys having their axes substantially parallel to that of the processing roller.
  • the separation belts are provided with at least two projections which determine at least one intermediate groove located, on the outer side of each belt and wherein the liquor receiving cells are defined by partition walls and a partition wall between two collecting cells is positioned directly below each of said grooves located on the outer side of the separation belts.
  • auxiliary rotatable belt supporting means are pulleys having their axes parallel to the axis of the processing roller, and further comprising means for shifting said pulleys parallel to said processing roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US343734A 1952-04-05 1953-03-20 Yarn processing device Expired - Lifetime US2814939A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT319518X 1952-04-05

Publications (1)

Publication Number Publication Date
US2814939A true US2814939A (en) 1957-12-03

Family

ID=11234533

Family Applications (1)

Application Number Title Priority Date Filing Date
US343734A Expired - Lifetime US2814939A (en) 1952-04-05 1953-03-20 Yarn processing device

Country Status (7)

Country Link
US (1) US2814939A (sv)
BE (1) BE518965A (sv)
CH (1) CH319518A (sv)
DE (1) DE1016891B (sv)
FR (1) FR1077161A (sv)
GB (1) GB728414A (sv)
NL (2) NL176968B (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL295198A (sv) * 1962-07-12

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254251A (en) * 1934-02-05 1941-09-02 Uytenbogaart Johannes Device for use in the aftertreatment of artificial silk
US2504703A (en) * 1947-12-29 1950-04-18 Kuljian Harry Asdour Method of manufacturing filaments
US2647037A (en) * 1948-01-02 1953-07-28 Dixie Mercerizing Company Mercerization
US2659225A (en) * 1947-10-09 1953-11-17 Du Pont Apparatus for advancing and processing strands

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE476720A (sv) * 1943-01-04
NL70038C (sv) * 1948-05-07

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254251A (en) * 1934-02-05 1941-09-02 Uytenbogaart Johannes Device for use in the aftertreatment of artificial silk
US2659225A (en) * 1947-10-09 1953-11-17 Du Pont Apparatus for advancing and processing strands
US2504703A (en) * 1947-12-29 1950-04-18 Kuljian Harry Asdour Method of manufacturing filaments
US2647037A (en) * 1948-01-02 1953-07-28 Dixie Mercerizing Company Mercerization

Also Published As

Publication number Publication date
NL97537C (sv)
BE518965A (sv)
DE1016891B (de) 1957-10-03
NL176968B (nl)
GB728414A (en) 1955-04-20
FR1077161A (fr) 1954-11-04
CH319518A (it) 1957-02-28

Similar Documents

Publication Publication Date Title
GB394216A (en) Process and apparatus for the manufacture of artificial filaments
US2539980A (en) Process for the intensive aftertreatment of synthetic threads
US3021663A (en) Apparatus for false twisting yarn
US2814939A (en) Yarn processing device
US2659225A (en) Apparatus for advancing and processing strands
US2294871A (en) Method and apparatus for the continuous spinning of artificial silk
US2459254A (en) Process and apparatus for threading up continuous spinning machines
US2251886A (en) Apparatus for the manufacture of thread
US2627738A (en) Elastic yarn feeding means for
US2883259A (en) Processes and equipments for the continuous treating of yarns
US2398787A (en) Method of and apparatus for treating yarn or cord
US2182762A (en) Manufacture of artificial silk
US2677949A (en) Thread wiper-guide for use in thread-spinning apparatus
GB1002570A (en) Improvements in or relating to a process and apparatus for sizing filaments
US3174312A (en) Thread treating machines
US2867108A (en) Reel type apparatus for the liquid treatment of yarn
USRE20146E (en) Core covering machine
US2267985A (en) Means for drying thread or the like
US2199550A (en) Process and apparatus for handling elastic filaments
US3261154A (en) Yarn guiding and feeding means for a false twisting machine
US2779457A (en) Method and apparatus for treating yarn strands
US2892336A (en) Apparatus for wet-treating threads, particularly viscose rayon threads
US2575981A (en) Apparatus for finishing braided threads
US2863787A (en) Sizing and polishing of yarns
US2538283A (en) Apparatus for spinning artificial filaments