US3319293A - Lead roller for elastomeric threads - Google Patents

Lead roller for elastomeric threads Download PDF

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Publication number
US3319293A
US3319293A US432330A US43233065A US3319293A US 3319293 A US3319293 A US 3319293A US 432330 A US432330 A US 432330A US 43233065 A US43233065 A US 43233065A US 3319293 A US3319293 A US 3319293A
Authority
US
United States
Prior art keywords
thread
roller
groove
openings
spool
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
US432330A
Other languages
English (en)
Inventor
Gollos Wolfgang
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.)
Glanzstoff AG
Vereinigte Glanzstoff Fabriken AG
Original Assignee
Glanzstoff AG
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 Glanzstoff AG filed Critical Glanzstoff AG
Application granted granted Critical
Publication of US3319293A publication Critical patent/US3319293A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0078—Producing filamentary materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B65H51/06—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate singly
    • 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
    • D01D7/00—Collecting the newly-spun products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/731—Filamentary material, i.e. comprised of a single element, e.g. filaments, strands, threads, fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • This invention relates to a lead roller which is adapted to deliver or convey elastomeric threads, and more particularly, the invention is concerned with a roller used to deliver a freshly spun elastomeric thread onto a takeup spool or bobbin.
  • lead or delivery rollers When winding ordinary threads onto a take-up spool, it is known that so-called lead or delivery rollers can be employed in order to place tension on the thread as it runs onto the spool and to maintain this tension as uniform as possible.
  • lead rollers of known construction have a rough or notched surface for contact with the thread, whereby slippage between the thread and the roller surface are to be prevented.
  • the thread tends to conform to the irregular profile of this rough surface and thereby increases its frictional adherence to the lead roller. It is thus possible to provide favorable conditions for regulation of the thread tension between the lead roller and the point at which winding occurs on the takeup spool.
  • Another object of the invention is to provide a lead roller which will transport the elastomeric thread in a uniform manner and in such a way that the thread can be wound on the take-up spool or bobbin substantially without longitudinal tension, i.e. Without stretching the thread during winding on the spool.
  • Still another object of the invention is to provide a lead roller which can be positively rotated at a rate faster than that corresponding to the longitudinal speed of the thread, so as to achieve a differential velocity between the contact surface of the roller and the thread itself.
  • the lead roller must accelerate the transported elastomeric thread sufficiently to provide ice a thread tension between the roller and the take-up spool which is approximately equal to zero.
  • Yet another object of the invention is to provide a lead roller in which the frictional adherence of the freshly spun elastomeric thread is carefully controlled to give a uniform delivery of the thread to the take-up spool without interruption of the continuous winding operation.
  • Another object of the invention is to provide a single, inexpensive and easily constructed lead roller which can be readily combined with conventional thread Winding apparatus.
  • a hollow cylindrical lead roller having an annular groove in its outer circumferential surface, this groove being smoothly rounded at least on the radially inwardly recessed base portion thereof which is in running contact with the thread.
  • the groove also contains a plurality of openings distributed at substantially uniformly spaced intervals over the entire circumference of the recessed base portion, the openings extending inwardly as a hollow space to receive excess liquid, preferably as a fluid passageway extending from the groove to a larger hollow space in the roller.
  • the radius of the rounded base portion of the groove should be at least about four times and preferably at least five times the thread diameter. Also, the best results have been achieved when the proportion of the total circumferential surface area of the base portion of the groove occupied by the openings is about /3 to
  • the lead roller or delivery roller of the invention is used in combination with conventional thread winding apparatus which essentially requires a take-up spool mounted on a drive shaft with any suitable means to rotate and regulate the velocity of the spool.
  • the lead roller is likewise mounted on a drive shaft with means to regulate its peripheral velocity to exceed the peripheral velocity of the take-up spool, thereby permitting the elastomeric thread to be fed or delivered from the lead roller to the take-up spool under substantially zero tension.
  • the lead roller of the invention solves the basic problems of receiving a freshly spun elastomeric thread and transporting it in a completely uniform manner to the take-up spool or similar winding device so that the thread can be wound in its normal relaxed state, i.e. practically without longitudinal tension.
  • the periphery of the roller corresponding to the bottom or base portion of the groove must rotate faster than the linear speed of the thread in contact with the smooth grooved surface.
  • there must be sufiicient frictional contact between the thread and the roller so that the roller accelerates the thread just enough during transport to the take-up spool to provide a thread tension between the roller and point of winding which is approximately equal to zero.
  • the base portion of the groove in the roller of the invention essentially corresponds to that surface which will come in contact with the running thread.
  • the width of this base portion can therefore be varied depending upon the size or diameter of the thread to be accommodated.
  • the series of openings around the circumference of the groove can be conveniently made by drilling or boring radial holes or cylindrical passageways through a grooved annular ring, and this ring can then be connected to cylindrical side plates on either side, at least one of these side plates being journaled and preferably provided with a sleeve extension for mounting on the drive shaft.
  • the inner diameter of the grooved annular ring can be sufficiently larger than the diameter of the drive shaft to provide a large hollow space in the interior of the assembled roller.
  • FIG. 1 is a perspective view of one embodiment of a lead roller constructed in accordance with the invention
  • FIG. 2 is an enlarged diametric cross-sectional view of the lead roller shown in FIG. 1;
  • FIG. 3 is a diametric cross-sectional view of the annular ring portion of the roller corresponding to FIGS. 1 and 2, there being a semi-circular groove in this annular ring;
  • FIG. 4 is a diametric cross-sectional view of another embodiment of the annular ring containing a wedgeshaped groove around its circumference;
  • FIG. 5 is a schematic illustration of the manner in which an elastomeric thread is extruded and wound onto a take-up spool with the aid of the lead roller according to the invention.
  • the drive shaft 1 is mounted in any suitable manner so as to be positively rotated at a regulated rate.
  • the lead roller 2 according to the invention is attached to this drive shaft 1 and is constructed to provide an annular groove 3 of semicircular cross-section, this groove serving to maintain running contact with the e-lastomeric thread.
  • This groove 3 contains a series of openings or radial bores 4 which are equidistantly spaced from each other and which extend completely around the circumference of the groove.
  • the roller can be constructed as a single integral element, but in a preferred embodiment of the invention, the groove and openings are contained in an annular ring 3' which is held in place between two cylindrical flanges or side plates 5 and 6.
  • One of these side plates 5 preferably includes a sleeve extension or mounting stub 7 with any suitable means for firmly connecting the roller to the drive shaft 1.
  • the annular ring 3 is attached to side plate 6 by means of at least two screws 8 connecting the inner annular flange 9 which is composed of a ferromagnetic material with a low remanence.
  • Side plate 5 contains permanent magnets 10 mounted firmly on its inner face portion so that the outer half of the roller composed of side plates 6, annular ring 3' and annular flange 9 is actually held in place to the inner half or side plate 5 by magnetic force. .
  • the openings or radial bores 4 in the annular ring 3' have a diameter d which is equal to the bottom or lower base portion of the groove providing surface contact with the running thread.
  • the diameter of the holes or openings may extend laterally beyond the base portion of the grove, and it is also feasile to employ elliptical or rectangular openings even though these are apt to be more difficult to form in the manufacture of the roller.
  • the bridge surfaces in running contact with the thread between the openings are smoothly rounded transversely as well as in the circumferential direction of the groove.
  • FIG. 4 A somewhat different embodiment of the annular ring is shown in FIG. 4 where the groove is in the shape of a wedge with a smoothly rounded bottom portion containing the openings and upper sides which diverge rectilinearly outwardly.
  • the lead roller does permit the elastomeric thread to be transported or delivered under substantially zero tension and without irregular fluctuations in adhesion and velocity as experienced with previous rollers.
  • FIG. 5 merely provides a schematic illustration of this combination wherein the thread T is delivered by the lead roller from the setting bath to the take-up spool under substantially zero tension.
  • Conventional means are employed for rotating the spool and the roller, and it is also possible to co-employ other known regulating devices for adjusting the rotational velocity of the roller and/ or the spool in response to the tension being placed on the thread.
  • mount the lead roller at a distance of about 20 to 50 cm. in front of the take-up spool, with reference to the direction of the running thread. It is essential, of course, to rotate the lead roller with a peripheral velocity which exceeds the peripheral velocity of the take-up spool in order to prevent stretching of the thread between the roller and the spool.
  • the lead roller of the invention When using the lead roller of the invention in combination with other conventional thread winding apparatus, it becomes possible to carry out the winding of a freshly spun elastomeric thread in an efficient and trouble-free manner.
  • the lead roller is therefore especially adapted to the commercial production of any of the various known natural and synthetic rubber threads as they are spun or extruded in the form of a rubber latex, solidified in a setting bath and subsequently wound onto a take-up spool. After the winding has been completed, the resulting package of elastomeric thread is quite uniform and tensionfree in its winding structure.
  • a lead roller for conveying a freshly spun elastomeric thread which comprises a hollow cylindrical roller having an annular groove in its outer circumferential surface, said groove being transversely smoothly rounded at least on the radially inwardly recessed peripheral portion thereof which is in running contact with said thread, and containing a plurality of openings distributed at substantially uniformely spaced intervals over the entire circumference of said recessed peripheral portion, said openings extending inwardly from said groove to the hollow space in said roller.
  • Thread winding apparatus comprising; a take-up spool mounted on a drive shaft and adapted to receive a freshly spun elastomeric thread to be wound into a thread package; means to rotate said take-up spool at a regulated velocity; a hollow cylindrical lead roller mounted on a drive shaft and having an annular groove in its outer circumferential surface with at least the radially inwardly recessed peripheral portion of said groove being transversely smoothly rounded to receive said thread in running contact therewith for transport of said thread to said take-up spool, the radius of said rounded recessed peripheral portion being at least four times the diameter of the thread, and said groove containing a plurality of openings distributed at spaced intervals over the entire circumference of said recessed peripheral portion, said openings providing a fluid passageway inwardly to the hollow space of said roller for removal of excess liquid from the freshly spun thread; and means to rotate said roller at a regulated peripheral velocity exceeding the peripheral velocity of said take-up spool.
  • Thread winding apparatus as claimed in claim 5 wherein the proportion of the total surface area of the recessed peripheral portion of said groove occupied by said openings is about /3 to 7. Thread winding apparatus as claimed in claim 5 wherein said lead roller is mounted at a distance of about 20 to cm. before the take-up spool, with reference to the direction of thread travel.
  • Thread winding apparatus as claimed in claim 5 wherein said groove has a wedge-shaped cross-section.
  • an apparatus for producing an elastomeric thread including spinning means to extrude and solidify an elastomeric thread in a liquid setting bath and a take-up spool adapted to receive the freshly spun thread for winding into a thread package, the improvement comprising:
  • a hollow cylindrical lead roller adapted to receive said thread as it emerges from said setting bath and to convey said thread onto said take-up spool, said roller having an annular groove in its outer circumferential surface with at least the radially inwardly recessed peripheral portion of said groove being transversely smoothly rounded to receive said thread in running contact therewith, and said groove containing a plurality of openings distributed at spaced intervals over the entire circumference of said recessed peripheral portion, said openings extending inwardly from said groove to the hollow space within said roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
US432330A 1964-02-15 1965-02-12 Lead roller for elastomeric threads Expired - Lifetime US3319293A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV15981U DE1901082U (de) 1964-02-15 1964-02-15 Voreilrolle zum foerdern gummilastischer faeden.

Publications (1)

Publication Number Publication Date
US3319293A true US3319293A (en) 1967-05-16

Family

ID=7575360

Family Applications (1)

Application Number Title Priority Date Filing Date
US432330A Expired - Lifetime US3319293A (en) 1964-02-15 1965-02-12 Lead roller for elastomeric threads

Country Status (9)

Country Link
US (1) US3319293A (enrdf_load_stackoverflow)
AT (1) AT252440B (enrdf_load_stackoverflow)
BE (1) BE658103A (enrdf_load_stackoverflow)
CH (1) CH418512A (enrdf_load_stackoverflow)
DE (1) DE1901082U (enrdf_load_stackoverflow)
ES (1) ES110951Y (enrdf_load_stackoverflow)
FR (1) FR1424349A (enrdf_load_stackoverflow)
GB (1) GB1066094A (enrdf_load_stackoverflow)
NL (1) NL6500614A (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828225A (en) * 1986-12-15 1989-05-09 Wyle Laboratories Power cable retriever
US5178313A (en) * 1988-11-08 1993-01-12 Hughes Aircraft Company Pneumatic shoe for high speed filamentary capstan
US20040066040A1 (en) * 2001-02-06 2004-04-08 Bennett Mark A. Tube fitting with separable tube gripping ring
US20040140671A1 (en) * 2001-02-06 2004-07-22 Williams Peter C. Fitting with separable gripping device for pipe and tube
US20040212192A1 (en) * 2001-02-06 2004-10-28 Williams Peter C. Fitting for metal pipe and tubing
US20050242582A1 (en) * 2004-04-22 2005-11-03 Williams Peter C Fitting for tube and pipe
US20060049632A1 (en) * 2001-02-06 2006-03-09 Williams Peter C Tube fitting for stainless steel tubing
US20060284419A1 (en) * 2003-11-03 2006-12-21 Williams Peter C Fitting for metal pipe and tubing
US20070007766A1 (en) * 2003-08-06 2007-01-11 Bennett Mark A Tube fitting with separable tube gripping device
US20080054626A1 (en) * 2006-09-01 2008-03-06 Swagelok Company Fitting for fluid conduits
US8038180B2 (en) 2004-04-22 2011-10-18 Swagelok Company Fitting with taper and single ferrule
US10215315B2 (en) 2008-09-05 2019-02-26 Parker-Hannifin Corporation Tube compression fitting and flared fitting used with connection body and method of making same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2246917A (en) * 1939-12-27 1941-06-24 Us Rubber Co Method of and apparatus for separating a rubber ribbon into its individual threads
US2284244A (en) * 1938-10-05 1942-05-26 Tubize Chatillon Corp Process and apparatus for winding filaments
US2871502A (en) * 1954-03-10 1959-02-03 American Enka Corp Vacuum wheel for extracting liquid from tow

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2284244A (en) * 1938-10-05 1942-05-26 Tubize Chatillon Corp Process and apparatus for winding filaments
US2246917A (en) * 1939-12-27 1941-06-24 Us Rubber Co Method of and apparatus for separating a rubber ribbon into its individual threads
US2871502A (en) * 1954-03-10 1959-02-03 American Enka Corp Vacuum wheel for extracting liquid from tow

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828225A (en) * 1986-12-15 1989-05-09 Wyle Laboratories Power cable retriever
US5178313A (en) * 1988-11-08 1993-01-12 Hughes Aircraft Company Pneumatic shoe for high speed filamentary capstan
US20090033093A1 (en) * 2001-02-06 2009-02-05 Swagelok Company Fitting for metal pipe and tubing
US20080048441A1 (en) * 2001-02-06 2008-02-28 Swagelok Company Tube fitting with separable tube gripping device
US20040212192A1 (en) * 2001-02-06 2004-10-28 Williams Peter C. Fitting for metal pipe and tubing
US7815226B2 (en) 2001-02-06 2010-10-19 Swagelok Company Fitting for metal pipe and tubing
US20060049632A1 (en) * 2001-02-06 2006-03-09 Williams Peter C Tube fitting for stainless steel tubing
US7066496B2 (en) 2001-02-06 2006-06-27 Swagelok Company Fitting with separable gripping device for pipe and tube
US7108288B2 (en) 2001-02-06 2006-09-19 Swagelok Company Tube fitting with separable tube gripping ring
US7416225B2 (en) 2001-02-06 2008-08-26 Swagelok Company Fitting for metal pipe and tubing
US7677602B2 (en) 2001-02-06 2010-03-16 Swagelok Company Tube fitting
US7740283B2 (en) 2001-02-06 2010-06-22 Swagelok Company Tube fitting with separable tube gripping device
US20040066040A1 (en) * 2001-02-06 2004-04-08 Bennett Mark A. Tube fitting with separable tube gripping ring
US20080061549A1 (en) * 2001-02-06 2008-03-13 Swagelok Company Tube fitting
US20040140671A1 (en) * 2001-02-06 2004-07-22 Williams Peter C. Fitting with separable gripping device for pipe and tube
US7762592B2 (en) 2001-02-06 2010-07-27 Swagelok Company Tube fitting for stainless steel tubing
US7393018B2 (en) 2001-02-06 2008-07-01 Swagelok Company Tube fitting for stainless steel tubing
US20080246278A1 (en) * 2001-02-06 2008-10-09 Swagelok Company Tube fitting for stainless steel tubing
US7407196B2 (en) 2003-08-06 2008-08-05 Swagelok Company Tube fitting with separable tube gripping device
US20070007766A1 (en) * 2003-08-06 2007-01-11 Bennett Mark A Tube fitting with separable tube gripping device
US20060284419A1 (en) * 2003-11-03 2006-12-21 Williams Peter C Fitting for metal pipe and tubing
US7784837B2 (en) 2003-11-03 2010-08-31 Swagelok Company Fitting for metal pipe and tubing
US7695027B2 (en) 2004-04-22 2010-04-13 Swagelok Company Fitting for tube and pipe
US20050242582A1 (en) * 2004-04-22 2005-11-03 Williams Peter C Fitting for tube and pipe
US8038180B2 (en) 2004-04-22 2011-10-18 Swagelok Company Fitting with taper and single ferrule
US20080054626A1 (en) * 2006-09-01 2008-03-06 Swagelok Company Fitting for fluid conduits
US10215315B2 (en) 2008-09-05 2019-02-26 Parker-Hannifin Corporation Tube compression fitting and flared fitting used with connection body and method of making same

Also Published As

Publication number Publication date
AT252440B (de) 1967-02-27
GB1066094A (en) 1967-04-19
FR1424349A (fr) 1966-01-07
BE658103A (enrdf_load_stackoverflow) 1965-04-30
ES110951U (es) 1965-03-01
CH418512A (de) 1966-08-15
ES110951Y (es) 1965-06-16
NL6500614A (enrdf_load_stackoverflow) 1965-08-16
DE1901082U (de) 1964-09-24

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