US2942307A - Double apron drawing arrangement for spinning machines - Google Patents

Double apron drawing arrangement for spinning machines Download PDF

Info

Publication number
US2942307A
US2942307A US744370A US74437058A US2942307A US 2942307 A US2942307 A US 2942307A US 744370 A US744370 A US 744370A US 74437058 A US74437058 A US 74437058A US 2942307 A US2942307 A US 2942307A
Authority
US
United States
Prior art keywords
bar
apron
arrangement
double apron
spinning machines
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
US744370A
Other languages
English (en)
Inventor
Schiltknecht Adolf
Cousin Fernand
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.)
Joh Jacob Rieter und Cie AG
Original Assignee
Joh Jacob Rieter und Cie 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 Joh Jacob Rieter und Cie AG filed Critical Joh Jacob Rieter und Cie AG
Application granted granted Critical
Publication of US2942307A publication Critical patent/US2942307A/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

  • the present invention relates to a double apron drawing arrangement for spinning machines and more particularly to adjustable means for guiding and reversing the lower apron of such arrangements.
  • the object of the present invention is to provide a're- 'versing bar arrangement forthe lower apron of double apron drafting arrangements for spinning machines in which only one bar can satisfy a great number of diiferent drawing conditions.
  • the bar according to the invention has a plurality of differently shaped surface portions which are selectively engageable by the lower apron.
  • the invention provides adaptors individually having a portion resting in one of the existing'notches.
  • the adaptors have means located symmetrically with respect to the longitudinal axis of the reversal bar and adapted to engage complementary means associated with the reversal bar. structure permits connection of 'the reversal bar and of the adaptor in different relative angular positions.
  • Fig. 1 is a diagrammatic side view of a double apron drawing arrangement including an adjustable bar according to the invention for guiding the lower apron.
  • Fig. 2 shows a portion of Fig. lwith the adjustable bar in a different position.
  • Fig. 3 shows a portion of Fig. 1 with the adjustable bar in a third position.
  • Fig. 4 shows a portion of Fig. 1 bar in a fourth position.
  • Fig. 6 is a diagrammatic cross sectional view of a modified arrangement for adjustably supporting a guide bar.
  • Fig. 7 is a diagrammatic side view of the arrangement shown in Fig. 6 with the drawing roller support removed.
  • Fig. 8 is an end view-of a guide bar and of an intermediate element according to the invention for angular-1y adjustably supporting the guide bar.
  • Fig. 9 is a diagrammatic part sectional view of the with the adjustable device shown in Fig. 8, the section being taken along line IXIX in Fig. 8, a roller support being added.
  • Fig. '10 is a perspective end view of the guide bar and intermediate element shown in Fig. 8.
  • numerals 2, 3, 4 designate drawing roller supports mounted and secured on a roller stand in the conventional manner.
  • Drawing rollers 8, 9 and 10 rotatably rest in suitable recesses 5, 6 and 7 of the supports 2, 3, 4, respectively.
  • Loaded top rollers 11, 12 and 13, which may be guided at their ends or in their middle portions, rest on the drawing rollers 8, 9 and 10;
  • the roller 12 which is between the rollers 11 and 13 carries a conventional guide cradle 147which guides a top apron 15 laid around the cradle so that the top apron moves along a lower apron 16 to the nip of the delivery rollers 8 and 11.
  • the lower apron 16 is tensioned in known manner by conventional tensioning devices, not shown, which are located below the run of the lower apron 16 which run is adjacentto the upper apron.
  • the lower apron 16 is first guided by and subsequently turned around a reversing bridge or bar 17 having a generally prismatic configuration, the individual surfaces 40, 41, 42 of the bar 17 having different configurations.
  • the surface 40 is plane, the surface 41 uniformly convexly curved and the surface 42 has a protuberance18 which rests in a complementary notch 19 of the support 2.
  • the thickness of the latter is preferably twice the longitudinal extension of the protuberance 18 so that the protuberances of two axially aligned bores can be received in the same notch.
  • the bar 17 can easily be lifted out of the notch 19, turned on its longitudinal axis and reinserted in thenotc-h for changing the curvature on which the lower apron is guided to comply with different drawing requirements.
  • Figs. 2 and 3 i1lustrate two different operating conditions of the bar 17 which can be obtained by clockwisely turning the bar on its longitudinal axis. 7
  • the bar By turning the bar from the position shown in Fig. 2 in a plane which is parallel'to the drafting field and on an axis which is normal to the longitudinal axis of the bar, as indicated in Fig. 5, an additional position, shown in Fig. 4,' canbe obtained and two further'positions can be obtained by turning the bar on its longitudinal axis from the position shown in Fig. 4.
  • a generally prismatic bar 17 six different operating positions can be obtained.
  • the bar may be provided with a quadratic cross section to increase the number of surfaces to four.
  • the bar can be provided with a polygonal cross section having more than four corners to further increase the number of different surfaces from which a desired surface can be selected.
  • the bar may also be so modified that it has only two difierent operating surfaces.
  • FIGs. 6 and 7 illustrate a modified embodiment of the Patented June 28, 19 0 invention.
  • a holder 20 is mounted by means of screws on the drawing roller support or bearing 2.
  • the central portion of the holder 20 is provided with a vertical slot 21. slidably receivinga rail 22, the top of which forms a clamping member 23.
  • the member 23 is provided with a bore 24, continuing in. a slot 25'.
  • a short pin 26' is received which pin extends axially from an end of a reversing bridge or bar 17. The diameter of the pin 26 is so that the pin must be forced into the bore.
  • the end of the bridge member or bar 28 is provided with a short axial. bore 29.
  • Three bores 31 extend from the bottom 30 of the cavity formed by the bore 29 into the bar 28.
  • the bores 31 are arrangedon a circle whose center is in the longitudinal axis of the bore 29.
  • the bores 31 are angularly spaced by I20
  • the bar 28 is supported by an intermediate piece 32 having a cylindrical portion 34 fitting into the bore 29 and a protuberance 36 extending in axial direction from the cylindrical portion 34' and into a recess 35' in the support 2 which recess is nonsymmetric with respect to the longitudinal axis of the bar 28.
  • a rodlike protuberance 37 extends from the portion 34 in a direction which is opposite .to the extension of the protuberance 36.
  • the bar with the intermediate piece 32' is taken out of the recess 35 whereupon the intermediate piece 32 is pulled out of the bar 28 and rotated for insertion of the rodlike protuberance 37 in a desired one of the bores: 31.
  • the assembly is again inserted in the recess 35 of the drawing roller support.
  • the modification illustrated in Figs. 8 to 10 is particularly suitable inconnecti'on with machines which already have notches. or recesses which are not suitable for using the embodiments of the invention shown in Figs. 1 to 7.
  • the modification shown in Figs. 8 to 1.0 is also suitable for adapting machines which initially did'not have rotatable reversingbars. to the use of adjustable. reversing bars according to. the invention.
  • a lower apron in the form of an endless belt having an upper run supporting the textile fibres, a guide bar placed beneath said upper run and. having a plurality of reversing edges and a differently shaped guidesurface portion extending from. each of said reversing edgesfor guiding a substantial portion of said upper run, and support means. for said guide bar, said guide bar and said support means including cooperating means for selectively placing said guide bar in a position in which a selected one of said guide surface portions is adjacent to. and
  • said cooperating means include complementary holding means engageable one by the other for holding said barin selected angular positions.
  • said holding means provided on said bar are in the form of. equilateral prisms and said holding means provided on said support means are in the form of triangular notches individually receiving said prisms, said bar having. the. general. configuration of a prism whose longitudinal. surfaces are individually parallel to the surfaces. of the holding means provided'on said bar.
  • a lower apron in the form of an endless belt having an upper run supporting thetextilefibres, a guide bar placed beneath said upper run and having a plurality of reversing edges and a differently shaped guide surface portion. extending from each of said' reversing edges for guiding a substantial portion of said upper. run, support means, and an. element having apart resting on said. support means and having: a portion engageable-with said guide. bar for supporting. said guide bar, said guide bar having a plurality of means individually complementary to said portion on. said element for individually engaging. said. last mentioned portion, said complementary means being arranged symmetrically around the longitudinal axisof said guide bar for changing the relative angular position ofv saidguide-bar and saidelement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
US744370A 1957-06-29 1958-06-25 Double apron drawing arrangement for spinning machines Expired - Lifetime US2942307A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH4782857 1957-06-29

Publications (1)

Publication Number Publication Date
US2942307A true US2942307A (en) 1960-06-28

Family

ID=32514219

Family Applications (1)

Application Number Title Priority Date Filing Date
US744370A Expired - Lifetime US2942307A (en) 1957-06-29 1958-06-25 Double apron drawing arrangement for spinning machines

Country Status (4)

Country Link
US (1) US2942307A (en, 2012)
DE (1) DE1123603B (en, 2012)
FR (1) FR1205669A (en, 2012)
GB (1) GB861483A (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011113744A1 (de) * 2010-03-16 2011-09-22 Maschinenfabrik Rieter Ag Streckwerk mit führungstisch für ein führungsriemchen

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429010A (en) * 1964-08-19 1969-02-25 Goffredo Fusaroli Drawing device for textile fiber preparation
DE19547462C2 (de) * 1995-12-19 2002-07-18 Zinser Textilmaschinen Gmbh Streckwerk für Spinnereimaschinen
DE102005045876A1 (de) * 2005-02-11 2006-08-24 Wilhelm Stahlecker Gmbh Unterriemchenführung für ein Doppelriemchenstreckwerk

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE662001C (de) * 1938-07-02 Ernst Toenniessen Riemchenumlenkschiene fuer Einriemchenstreckwerke
US2703440A (en) * 1954-06-14 1955-03-08 Glenn Mills Inc Clearer for long-draft spinning aprons

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH213604A (fr) * 1938-02-17 1941-02-28 Filature Du Canal Societe Anon Dispositif d'étirage pour métier à filer.
DE715839C (de) * 1939-06-30 1942-01-08 Hermann Kluftinger Dipl Ing Unterriemchenstreckwerk
GB552927A (en, 2012) * 1941-10-27 1943-04-30
US2399006A (en) * 1942-04-18 1946-04-23 British Cotton Ind Res Assoc Machine for drafting fibrous materials
CH267667A (de) * 1948-07-10 1950-04-15 Rieter Joh Jacob & Cie Ag Verfahren zum Verziehen von Vorgarnen und Streckwerk zur Ausführung des Verfahrens.
US2777168A (en) * 1951-08-09 1957-01-15 Noguera
DE1021280B (de) 1952-08-18 1957-12-19 Collins & Aikman Corp Unterriemchen-Streckwerk
DE930918C (de) * 1953-10-07 1955-07-28 Deutscher Spinnereimaschb Ingo Doppelriemchen-Streckwerk
GB832603A (en) 1956-01-11 1960-04-13 Rieter Joh Jacob & Cie Ag Improvements relating to a double apron drafting arrangement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE662001C (de) * 1938-07-02 Ernst Toenniessen Riemchenumlenkschiene fuer Einriemchenstreckwerke
US2703440A (en) * 1954-06-14 1955-03-08 Glenn Mills Inc Clearer for long-draft spinning aprons

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011113744A1 (de) * 2010-03-16 2011-09-22 Maschinenfabrik Rieter Ag Streckwerk mit führungstisch für ein führungsriemchen
CN102753742A (zh) * 2010-03-16 2012-10-24 里特机械公司 具有用于导向皮带的导向台的牵伸机构
US8695169B2 (en) 2010-03-16 2014-04-15 Maschinenfabrik Rieter Ag Drawing frame having a guide table for a guide apron
CN102753742B (zh) * 2010-03-16 2016-01-20 里特机械公司 具有用于导向皮带的导向台的牵伸机构

Also Published As

Publication number Publication date
GB861483A (en, 2012) 1961-02-22
FR1205669A (en, 2012) 1960-02-04
DE1123603B (de) 1962-02-08

Similar Documents

Publication Publication Date Title
US2758439A (en) Textile machine
US2942307A (en) Double apron drawing arrangement for spinning machines
US5303454A (en) Textile machine comprising a plurality of drafting units arranged next to one another in a row
US2885740A (en) Setting rollers in spinning machines
US2426425A (en) Long staple drafting mechanism
CN205223502U (zh) 一种整经机
US1771923A (en) Thread board and guide for spinning frames
CN210854676U (zh) 一种纺织用纱线架
US3412434A (en) Upper roller supporting arm for textile dressing and spinning machines
GB1523053A (en) Sliver delivery apparatus for an open-end spinning device
US5359943A (en) Apron table arrangement for a drafting unit
US2036318A (en) Means of guiding the endless belts in the drawing apparatus for textile rovings
JPH06104935B2 (ja) ドラフト装置のトップローラホルダ
US3003196A (en) Top roll assembly
US2741801A (en) Cylinder bearing means for drafting systems of spinning machines
US2714228A (en) Modified roll stand
US5465465A (en) Two-apron drafting unit comprising at least one sliver guide
US2827757A (en) Twister head
US2881481A (en) Top roll positioning and tensioning mechanism for textile drafting apparatus
US2749575A (en) Drawing mechanism
US1876376A (en) Textile machine
US2819581A (en) Twister head
US2871650A (en) Means for mounting the top rolls of a spinning frame for quick threading of roving
CN210237880U (zh) 一种缎彩纱纺制用细纱上销
CN211920329U (zh) 一种用于弹力布涂层的平幅进布装置