US2912722A - Fiber processing unit - Google Patents

Fiber processing unit Download PDF

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Publication number
US2912722A
US2912722A US659304A US65930457A US2912722A US 2912722 A US2912722 A US 2912722A US 659304 A US659304 A US 659304A US 65930457 A US65930457 A US 65930457A US 2912722 A US2912722 A US 2912722A
Authority
US
United States
Prior art keywords
apron
ribs
drafting
fiber
nose bar
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
US659304A
Other languages
English (en)
Inventor
Emory L Howell
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.)
Dayton Rubber Co
Original Assignee
Dayton Rubber Co
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 Dayton Rubber Co filed Critical Dayton Rubber Co
Priority to US659304A priority Critical patent/US2912722A/en
Priority to GB846167D priority patent/GB846167A/en
Priority to CH5949558A priority patent/CH366479A/de
Priority to DED32664A priority patent/DE1104406B/de
Priority to FR1206180D priority patent/FR1206180A/fr
Priority to BE567636D priority patent/BE567636A/xx
Application granted granted Critical
Publication of US2912722A publication Critical patent/US2912722A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D01H5/86—Aprons; Apron supports; Apron tensioning arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/2457—Parallel ribs and/or grooves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/2457—Parallel ribs and/or grooves
    • Y10T428/24587—Oblique to longitudinal axis of web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y10T428/24967—Absolute thicknesses specified

Definitions

  • apron in the form of a flexible sleeve having an outer fiber contacting surface is employed.
  • Such aprons are motivated by a powered roller in driving contact with the inner surface of the sleeve at the rear thereof.
  • a supporting rod often referred to as a nose bar is employed to hold the apron at the front so that the normally cylindrical sleeve is held in elongated position during its travel about the driving roller and the nose bar.
  • the nose bar itself is stationary and is so contoured and polished that the apron will slide readily thereover.
  • the tension of the apron is controlled by an idler or tension roller which usually rotates against the outer, fiber-contacting apron surface and urges it inwardly between the driving,
  • the outer, fiber-contacting surface of the apron must be of a carefully controlled resilience and modulus of elasticity so as to exert the proper pressure and grip upon the fiber being processed and because the inner surface of the apron must be carefully controlled as to resilience and friction properties so as to be properly driven for smooth operation about the various rollers and apron supporting bars, the material of which these apron surfaces are composed must be carefully selected. In the.
  • Still another object of the present invention is to provide a method for the manufacture of suchfiber drafting aprons.
  • ribs may be according to a variety of patterns, it has been found that definite improvements are achieved where the ribs are in parallel relationship extending transversely, longitudi nally or diagonally of the apron sleeve about its inner surface. An even more pronounced improvement over the prior art devices has been achieved Where the ribs rising from the inwardly disposed apron surface are of two classes, those ribs in each class being in parallel relationship diagonally of the sleeve and intersecting the similarly disposed ribs of the other class.
  • Figure l is a diagrammatic view of a fiber drafting apron according to the present invention employed in the Saco Lowell-Roth fiber drafting system.
  • Figure 2 is a fragmentary perspective in partial cross section of one preferred form of drafting apron according to the present invention.
  • Figure 3 is a plan view of the inwardly disposed surface of still another preferred apron according to the present invention.
  • Figure 4 is a similar plan view of the inwardly disposed surface of another apron according to the present invention.
  • Figure 5 is a perspective of a building mandrel for use in the manufacture of fiber drafting aprons according to the present invention.
  • the strand or sliver 1 1 is shown to be passing through the bite of the rear drawing rollers 11 and 12, along the fiber contacting surface 1.: of the drafting apron 14 and then through the bite or mp of the front drawing rollers 15 and 16.
  • the strand 10 may be held against the drafting surface 13 of the apron by intermediate rollers such as 17 and 18.
  • the drafting apron 14 forming the subject matter of the present invention is in the form of a flexible sleeve WhlCh would be normally cylindrical but is held in an elongated or extended position by means of the rollers 19 and 20 and the nose bar or forward supporting rod 21, these components being so spaced that the apron assumes the general shape of a triangle in passing around them.
  • the apron 14 is usually motivated by its contact with the roller 19 which is itself rotatably driven by suitable connection to the power or driving component of the drafting machinery.
  • the guide roll 20 is rotatably mounted to be freely driven by the apron passing thereover, and the nose bar 21 is stationary.
  • the apron slides over the nose bar which is smooth and polished at least at those surfaces which are contacted by the apron.
  • the tension or idler roller 22 which is also mounted to rotate freely with the moving apron.
  • the position of this roller 22 is controllably adjustable so that it may displace the apron from its normal path between its supports to achieve the desired tension for enabling the apron to maintain driving contact with the roller 19 and at the same time to pass smoothly over the guide roller 20 and the nose bar 21.
  • the apron As the apron thereby becomes increasingly tensed or stretched, it will either bind in passing about the rollers 19 and 20 and the nose bar 21 or will actually break. When the apron binds, not only will the drafting operation be disrupted but also the apron will be seriously damaged by the driving roller 19 which will continue to rotate against one portion only of the apron causing excessive wear at such point.
  • the apron of the present invention is provided with a knurled or roughened inwardly disposed surface 23 which is characterized by a plurality of protrusions such as 24 projecting inwardly therefrom.
  • 'Ihese protrusions may be in the form of ribs extending across the inwardly disposed surface 23 of the apron.
  • the ribs on the inwardly disposed surface 25 may be divided into two classes respectively designated by the numbers 27 and 28 wherein the ribs in each class are in parallel relationship diagonally of the apron and intersect the ribs of the other class which are similarly disposed.
  • the ribs 27 and 28 are formed of the same material as that comprising the inwardly disposed surface 25 of the apron which in turn may be the same as or at least similar to the material of which the rest of the apron is composed. While, for the sake of clarity, the ribs have been shown to be relatively large, they are in fact of small cross section and where, for example, the over all apron thickness is on the order of .032 inch, the ribs themselves may measure approximately .005 inch or less in cross-sectional width and height.
  • the ribs in each of the classes 27 and 28 may be spaced by from to of an inch; and in the case of an apron .032 inch thick wherein the ribs are .005 inch in height and width, a rib spacing of of an inch between centers has been found to prevent the above described undesirable formation of loose fibers either on the idler roller such as 22 or along the nose bar 30 at the edges 31 and 32 of the apron shown in Figure 2.
  • One preferred angular disposition of the ribs so arranged has been found to be that which will result in the formation of diamonds which measure approximately 1.75 millimeters in their longer, transverse dimension and approximately l millimeter in their shorter dimension longitu' dinally of the apron.
  • n'bs arranged in parallel and extending generally transversely as are the ribs 33 of the apron 34 in Figure 3 or extending longitudinally as are the ribs 35 of the apron 36 of Figure 4 will also substantially reduce the accumulation of fibers at the objectionable points in the fiber drafting machinery when an apron of synthetic material is employed.
  • Aprons according to the present invention may be formed in the conventional manner as for example that described in the United States Patent No. 2,341,656 issued February 15, 1944, to Joseph Rockoflf, wherein the layer or layers of synthetic material to form the apron body are wound about a mandrel and then compacted prior to vulcanization and final treatment.
  • the ribs according to the present invention may be conveniently provided in such a method by employing a building mandrel having grooves or depressions therein corresponding to the protrusions or ribs ultimately desired in the finished apron.
  • Such a mandrel is designated by the number 37 in Figure 5 wherein the outer periphery or building surface 38 is shown to have formed thereon a plurality of grooves 39 so arranged that when the grooves are filled with the elastomeric material forming the innermost apron surface, a ribbed surface similar to that illustrated in Figure 3 will result.
  • the pattern of the grooves 39 may of course be altered to achieve either of the rib patterns shown in Figures 2 and 4 or any other desired arrangement of ribs or other protrusions.
  • a vulcanizable rubber or any other plastic elastomeric material may be brought to a state of plastic flow whereupon it may be molded to assume the surface characteristics of the mandrel and thereafter allowed to set so that such characteristics will be permanently fixed in the finished apron.
  • a fiber drafting apron in the form of a flexible sleeve having an outwardly disposed fiber-contacting surface and an inwardly disposed roller and nose bar contacting surface wherein said inner surface has a plurality of small parallel ribs extending longitudinally of said sleeve and projecting inwardly therefrom.
  • a fiber drafting apron in the form of a flexible sleeve having an outwardly disposed fiber-contacting surface wherein said inner surface has a plurality of small parallel ribs extending diagonally of said sleeve and projecting inwardly therefrom.
  • a fiber drafting apron according to claim 2 wherein said ribs are divided into two classes, the ribs of one class intersecting those of the other class forming a diamond pattern of ribs about said inner surface.
  • a fiber drafting apron according to claim 4 wherein all of said ribs are disposed at an angle which is less than 45 to the longitudinal axis of said sleeve whereby the greatest dimensions of the diamonds formed by such ribs extends transversely of said sleeve.
  • a fiber drafting apron in the form of a flexible sleeve having an outwardly disposed fiber-contacting surface and an inwardly disposed roller and nose bar contacting surface wherein said inner surface has a plurality of small parallel ribs projecting inwardly therefrom and forming angles of less than 45 degrees with the longitudinal axis of said sleeve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Handling Of Cut Paper (AREA)
US659304A 1957-05-15 1957-05-15 Fiber processing unit Expired - Lifetime US2912722A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US659304A US2912722A (en) 1957-05-15 1957-05-15 Fiber processing unit
GB846167D GB846167A (nl) 1957-05-15 1958-04-17
CH5949558A CH366479A (de) 1957-05-15 1958-05-13 Endloser Riemen für Streckwerke
DED32664A DE1104406B (de) 1957-05-15 1958-05-13 Riemchen fuer Spinnereimaschinenstreckwerke
FR1206180D FR1206180A (nl) 1957-05-15 1958-05-13
BE567636D BE567636A (nl) 1957-05-15 1958-05-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US659304A US2912722A (en) 1957-05-15 1957-05-15 Fiber processing unit

Publications (1)

Publication Number Publication Date
US2912722A true US2912722A (en) 1959-11-17

Family

ID=24644884

Family Applications (1)

Application Number Title Priority Date Filing Date
US659304A Expired - Lifetime US2912722A (en) 1957-05-15 1957-05-15 Fiber processing unit

Country Status (5)

Country Link
US (1) US2912722A (nl)
BE (1) BE567636A (nl)
DE (1) DE1104406B (nl)
FR (1) FR1206180A (nl)
GB (1) GB846167A (nl)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844402A (en) * 1971-01-18 1974-10-29 T Hayashi Bakery flexible belt carrying plate
JPS527326U (nl) * 1975-06-23 1977-01-19
WO1983004272A1 (en) * 1982-05-25 1983-12-08 Dayco Corporation Textile fiber drafting apron
CH656857A5 (fr) * 1984-07-05 1986-07-31 Nestle Sa Emballage.
EP0584961A2 (en) * 1992-07-28 1994-03-02 The Scott Fetzer Company Vacuum sweeper drive belt
US5743379A (en) * 1994-04-19 1998-04-28 Transnorm System Gmbh Conveyor belt feed/discharge insert
US5911307A (en) * 1996-10-31 1999-06-15 Burrel Leder Beltech, Inc. Conveyor belt and method of manufacturing
US6216848B1 (en) * 1999-04-09 2001-04-17 Profold, Inc. Vacuum table conveying apparatus and associated methods
US20070298922A1 (en) * 2006-06-10 2007-12-27 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Plate-link chain
US20080293529A1 (en) * 2004-11-10 2008-11-27 Tommaso Di Giacomo Belt Drive With A Friction Wheel
US20120107568A1 (en) * 2010-10-27 2012-05-03 John Allen Manifold Fibrous structures and methods for making same
CN105155058A (zh) * 2015-08-17 2015-12-16 苏州科润织造有限公司 一种纺织皮圈

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4201220A1 (de) * 1992-01-18 1993-07-22 Zinser Textilmaschinen Gmbh Streckwerk fuer spinnereimaschinen mit riemchen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1028783A (en) * 1911-07-17 1912-06-04 Curt Theodor Leonard Von Rabenau Motor-cycle driving-belt.
US1799448A (en) * 1930-03-20 1931-04-07 Whitin Machine Works Drawing mechanism for fibrous material
US2054619A (en) * 1934-02-21 1936-09-15 Dayton Rubber Mfg Co Belt
US2341656A (en) * 1940-08-02 1944-02-15 Dayton Rubber Mfg Co Draft apron
US2362340A (en) * 1941-04-19 1944-11-07 Dayton Rubber Mfg Co Long draft textile apron
US2686939A (en) * 1949-10-29 1954-08-24 Schiess Ag Drawing frame or system comprising an endless belt for conveying the fibrous material in slubbing, roving, and spinning frames

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1028783A (en) * 1911-07-17 1912-06-04 Curt Theodor Leonard Von Rabenau Motor-cycle driving-belt.
US1799448A (en) * 1930-03-20 1931-04-07 Whitin Machine Works Drawing mechanism for fibrous material
US2054619A (en) * 1934-02-21 1936-09-15 Dayton Rubber Mfg Co Belt
US2341656A (en) * 1940-08-02 1944-02-15 Dayton Rubber Mfg Co Draft apron
US2362340A (en) * 1941-04-19 1944-11-07 Dayton Rubber Mfg Co Long draft textile apron
US2686939A (en) * 1949-10-29 1954-08-24 Schiess Ag Drawing frame or system comprising an endless belt for conveying the fibrous material in slubbing, roving, and spinning frames

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844402A (en) * 1971-01-18 1974-10-29 T Hayashi Bakery flexible belt carrying plate
JPS527326U (nl) * 1975-06-23 1977-01-19
JPS5319242Y2 (nl) * 1975-06-23 1978-05-22
WO1983004272A1 (en) * 1982-05-25 1983-12-08 Dayco Corporation Textile fiber drafting apron
US4692967A (en) * 1982-05-25 1987-09-15 Day International Corporation Textile fiber drafting apron and method
CH656857A5 (fr) * 1984-07-05 1986-07-31 Nestle Sa Emballage.
US5308288A (en) * 1992-07-28 1994-05-03 The Scott Fetzer Company Vacuum sweeper drive belt
EP0584961A3 (en) * 1992-07-28 1994-04-06 The Scott Fetzer Company Vacuum sweeper drive belt
EP0584961A2 (en) * 1992-07-28 1994-03-02 The Scott Fetzer Company Vacuum sweeper drive belt
US5743379A (en) * 1994-04-19 1998-04-28 Transnorm System Gmbh Conveyor belt feed/discharge insert
US5911307A (en) * 1996-10-31 1999-06-15 Burrel Leder Beltech, Inc. Conveyor belt and method of manufacturing
US6216848B1 (en) * 1999-04-09 2001-04-17 Profold, Inc. Vacuum table conveying apparatus and associated methods
US20080293529A1 (en) * 2004-11-10 2008-11-27 Tommaso Di Giacomo Belt Drive With A Friction Wheel
US20070298922A1 (en) * 2006-06-10 2007-12-27 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Plate-link chain
US8500582B2 (en) * 2006-06-10 2013-08-06 Schaeffler Technologies AG & Co. KG Plate-link chain
US20120107568A1 (en) * 2010-10-27 2012-05-03 John Allen Manifold Fibrous structures and methods for making same
US9752281B2 (en) * 2010-10-27 2017-09-05 The Procter & Gamble Company Fibrous structures and methods for making same
CN105155058A (zh) * 2015-08-17 2015-12-16 苏州科润织造有限公司 一种纺织皮圈

Also Published As

Publication number Publication date
FR1206180A (nl) 1960-02-08
BE567636A (nl) 1960-08-12
GB846167A (nl) 1960-08-24
DE1104406B (de) 1961-04-06

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