US2686939A - Drawing frame or system comprising an endless belt for conveying the fibrous material in slubbing, roving, and spinning frames - Google Patents

Drawing frame or system comprising an endless belt for conveying the fibrous material in slubbing, roving, and spinning frames Download PDF

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Publication number
US2686939A
US2686939A US192133A US19213350A US2686939A US 2686939 A US2686939 A US 2686939A US 192133 A US192133 A US 192133A US 19213350 A US19213350 A US 19213350A US 2686939 A US2686939 A US 2686939A
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Prior art keywords
belt
apron
aprons
driving shaft
driving
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Expired - Lifetime
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US192133A
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English (en)
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Keyser Johann Jacob
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Schiess AG
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Schiess AG
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    • 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 textile machines, and, more particularly to drafting assemblies for use in slubbing, roving and spinning machines.
  • each apron has a slightly different speed due to the fact that it is impos- It is a still further object of this invention to design each apron and the driving and return guide elements therefor so that all parts cooperating with an apron can be handled as a single unit, while these units can be handled independently of each other.
  • Figure 1 is a portion of a longitudinal view of a spinning machine with drafting field sections according to the invention.
  • Figure 2 is a longitudinal section through a drafting field section having a composite belt' encircling the driving and return guide elements.
  • Figure 3 is an end View showing a special form of the belt.
  • Figure 4 is an end view showing a different form of the belt.
  • Figure 5 is a diagrammatic and partially sectional view of two drafting field sections in accordance with the invention.
  • an apron which is so wide that it serves a plurality of spindles.
  • the apron according to the present inven- 6 tion is materially wider than the distances between the axis of its driving shaft or driving roller and the axis of its return shaftor return roller.
  • the wider apron also reduces the possibilities of Furthermore, by arranging the aprons according to the present invention in such a manner that the apron surface will appear as an uninterrupted surface from one end of the machine to the other end thereof, the possibility of dirt or other foreign bodies affecting the movement of the apron is materially reduced and practically impossible since the increased friction between the wide apron and the rollers over which it passes is such that it will overcome any possible dirt or foreign body which might enter between said rollers and the apron. If however, for some special reasons one apron should not move at the same speed as the other apron, it is obvious that the arrangement according to the present invention materially cuts down the total possible irregularities in the movement of the aprons over the arrangement heretofore used.
  • Another advantage of the arrangement according to the present invention consists in that the operator will now be able to watch the aprons of the entire machine much easier than heretofore possible since the eye is not disturbed by any spaces between the aprons so that the arrangement actually makes possible the construction of longer spinning machines, say, for instance, with a length of from seventeen to eighteen yards.
  • the present invention does not merely use a wider apron instead of a plurality of aprons.
  • a replacement of the heretofore known small aprons by a wider apron immediately causes other problems. to be solved.
  • the first requirement consists in that the apron must be. materially thicker than the heretofore known small aprons since otherwise the apron would become undulated while in operation so that it would be impossible to carry out a proper drafting operation.
  • the application of thicker aprons causes another problem, namely, it now becomes impossible.
  • the width of the belt corresponds to the length of the belt driving rollers between their bearings.
  • the belt has a width which is greater than the conveying length thereof.
  • the belt area may be composed of parallel single belts. It is advantageous to have the belt guided on the sides by the side faces of the bearings carrying the ends of its driving, supporting and return guide elements. But it is also possible for the belt to be guided by at least one of its, driving, supporting or return guide elements. Further, the belt may be positively driven by its driving roller, or the grip of the belt on its driving roller may be improved by fitting at least one of the two parts with a contact surface which has been specially roughened, fluted, formed, covered or treated otherwise to insure the safe grip required.
  • the return guide element is also advantageous to arrange for the return guide element to be carried within the belt. This can, for example, be accomplished in such a way that the return guide element is backed up by the supporting element of the belt.
  • the return guide element may be adjustably or flexioly mounted in relation to its supporting member. For stopping the drawing frame in the event of lap. formations within the sphere controlled by the return guide element, the latter may be so designed that it can be swung out of the plane of the belt.
  • the belt in accordance with the invention preferably consists of a length of tube of flexible material. It can, for example, be cut on from an endless profiled extruded tube.
  • the belt in accordance with the invention extends to the full width of a drafting field section which consequently presents itself like a table, the clearness of design can be further increased, according to the invention, by selecting a belt having a color to contrast with that.
  • the belt may be provided with a strengthening. insertion, for example of textile materials.
  • each drafting fieldsection serves three spindles, and the apron I fully covers the entire area of a drafting field section so that a number of individual fibrous strands 2, resting on the belt or apron i as on a table surface, can be processed within the reach of the various drafting field sections A, B, C.
  • the belt driving rollers or driving shaft sections 3, which laterally protrude from the aprons, are journalled in bearings 3 of the supports or hearing elements 4.
  • the belt or apron I may be smaller in width, but for reasons of a uniform guide on the driving rollers, it is in any case advisable for the face width of the belt to be at least equal to the conveying length a of the belt.
  • the belt or apron may be a composite one, i. e. may be made up of individual belts I, I, I', connected together in any convenient manner to form a single belt entity.
  • the arrangement can be made so that the belt, as illustrated in Fig. l, is laterally guided by the side faces of the bearings 4 carrying its driving elements or shaft sec.- tions 3, its supporting elements (plate 5), and its return guide elements (roller 6 or rail 1 in Fig. 7). But provision may also be made to guide the belt by at least one of its driving elements 3, its supporting elements 5 or its return guide elements 6 and '5, respectively.
  • Fig. 2 illustrates such a possibility.
  • the individual belts I, I, I are provided with, side flanges 8, 8' which engage corresponding recesses 9, 9' formed into the driving and return guide elements 3 and 6, respectively.
  • the belt may be positively driven by the driving roller or shaft section 3, for example, by meshing teeth, as are shown in Fig. 3.
  • both the driving roller 3 and. the return guide roller have teeth [0 which mesh with the teeth Iii formed on the underside of the belt.
  • the driving contact between the belt I and its driving element 3 may be improved by increasing the grip between them by providing a gripping surface for the zone of contact of at least one of the two parts concerned.
  • the driving roller or shaft section 3 may for this purpose be fluted, as shown in Figs. 4 and 7, or fitted with an elastic cover I I, such as rubber, as shown in Fig. 8. Roughening by knurling or chequered grooving is also feasible; If necessary, the cylindrically shaped return guide element may be formed in a similar way, as can be seen from Fig. 4. Likewise, the underside of the belt I may be similarly roughened or fiuted to increase the grip. Besides,
  • Figs. 3 and 4 illustrate undulations, corrugations or flutes formed on the top surface of the belt, which may be of advantage when working with particularly hard fibers.
  • the invention also suggests a very particular simplification of the construction of the machine by designing the belt I and the driving elements or shaft sections 3, supporting elements 5 and return guide elements 6 or 1 encircled by said belt so as to form a complete unit which can be inserted into, or removed from, the machine as a whole.
  • This form of embodiment is illustrated in Fig. 5 showing two such units drawn apart on either side of a common bearing element or support 4.
  • Fig. 7 illustrates a similar system of supporting a rail 1 serving as a return guide element.
  • the rail 1 is backed up against the holder it which latter is rotatable in relation to said rail and can be secured in its position by means of the nut.
  • the return guide element it is, however, also possible for the return guide element to be flexibly supported against its bearing member, an example being shown in Fig. 8.
  • holders 55 carrying abutments l4 are slidable in holes iii of the supporting or bearing member 5 against the action of springs I! so that the whole assembly is given a certain flexibility permitting the belt while operating to yield to the actual conditions of the fibrous material in process, or to any other factors affect ing the belt.
  • An example of this is shown in Fig. 8.
  • the sup porting rail is pivotally mounted on a shaft i8 which in turn may be fixed to the bearing supports 4 in the manner described.
  • This shaft I8 serves as a pivot for the unit comprising the supporting rail 5 and the return guide element 5 so that the assembly can move in the direction of the arrow, should there be any interference with the belt from below.
  • a similar efiect is attained by the arrangement shown in Fig. 9, but in this case it is not the supporting rail 5 which swings out of the belt travelling plane in the direction of the arrow, but only the holder is which is pivotally connected to it and is linked to the bolt 211 as at 2
  • return guide elements 6 and 1 need not necessarily be backed up against the supporting rail 5, but may also be supported by any other member housed in the belt I, for example, a transverse bar or trans:
  • the broad-faced elastic; belt or apron according to the present invention is most suitably made from a length of tube of elastic material, such as rubber, synthetic rubber or other elastic synthetic materials, and is, placed, with a certain initial tension, on the, driving and return guide elements 3 and 6 or 7, respectively, so as to form a perfectly plain table surface in the machine. Its, manufacture is. greatly simplified if it is cut off; in lengths from an endless, profiled, extruded tube having a profile to suit individual mill requirements.
  • the belts are made from pieces of a tube which can be produced in any length and of any cross-section by the extruding or jet moulding process, it is possible for gripping profiles, such as shown in Figs. 3 and 4,110 be formed on both the top and bottom surfaces of the belt.
  • the top surface of the belt can be colored to contrast with the color; of the fibrous material to be dealt with, this: being obtained either by coating or spraying it with a suitable paint or by dyeing the mass of the belt material accordingly.
  • the drafting fields appear sharply contrasting according to the color of the fibrous material in process, whereby the attendance of the machine is considerably simplified.
  • black belts may be chosen and vice versa, and when dealing with fibers of different colors, belts of complementary colors may be preferred.
  • the belts l may be partly or wholly provided with strengthening insertions 22', for example, textile insertions.
  • the invention suggests advantages as cannot be.
  • the invention is not confined to any particular type of machine nor to any particular system of drawing frame. It can be applied wherever it has been customary hitherto to employ narrow conveyor belts or aprons for moving or processing the fibrous material. Therefore, it is absolutely possible for existing machines to be modified and modernized by means of broadfaced belts according to the invention, and for new machines to be equipped therewith, also.
  • the example shown in Figs. 1 and 6 refers to a five-roller drawing frame for worsted yarn in which the third roller has been removed and replaced by a fixed flat rail to give the necessary support to the belt.
  • the belt preferably consists. of a length of tube of rubber, synthetic rubber or any other elastic synthetic material having a thickness which will prevent it both from wearing out prematurely and suffering any damage due to Apart from the accidental overstressing. Thicknesses of from 1 to 2 millimeters have proved to be useful.
  • a return guide element of substantially the same length as the width of said last-mentioned endeless belt and encircled by said endless belt, said driving shaft section being provided with means for direct engagement with another driving shaft; section in said frame to thereb allow selective,- ly to insert said unit into or remove the same; from; said drawing frame as an entirety so as to effector interrupt rotative connection between said last-mentioned driving shaft section and said other driving shaft section, and means connected to said return guide element and arranged for engagement with a portion of the adjacent two roller stands to thereby allow pivoting said unit; about the axis defined by the line of contact of said lastmentione-d means with said two adja. cent roller stands.
  • a machine unit for use in connection with a drawing frame of a spinning or preparing machine which has a driving shaft that extends, throughout the length of the machine for driving a plurality of aprons and comprises a plurality of substantially equal driving shaft sections supported by a plurality of supporting means and adapted selectively to be drivinglyconnected with or disconnected from each other, said unit including an apron having a width nearly equalling the length of a driving shaft; section, a return guide element of substantially the same length as the width of said last-mentioned apron and encircled bysaid apron, carry-- ing means encircled by said apron and carrying said return guide element, said carrying means;
  • said unit being selectively insertable into or removable from said drawing frame as an entirety so as to, effect or interrupt driving connection between said last-mentioned driving shaft section and the adjacent driving shaft sections in said frame while simultaneously respectively tensioning or relieving the tension of the apron pertaining to said unit.
  • a machine unit for use in connection with a. drawing frame of a spinning or preparing ma chine which has a driving shaft that extends. throughout the length of the machine for drivinga plurality of aprons and comprises a plurality of substantially equal driving shaft sections carried.
  • said unit including an apron having a width nearly equalling the length of a driving shaft section, a return guide element of substantially the same length as the width ofsaid last-mentioned apron and encircled by said last-mentioned apron, a driving shaft section encircled by said last-mentioned apron and laterally protruding therefrom, said driving shaft section and said return guide element being arranged in spaced relationship to each other, means in-.
  • a machine unit which includes spring means continually urging the return guide element against the apron so as to tension the same.
  • a machine unit which includes means carried by said interposed means and having said return guide element pivotally connected thereto.
  • a machine unit for use in connection with adrawing frame of a spinning or preparing machine which has a sectional driving shaft extending throughout the length of the machine and supported by a plurality of bearing means respectively forming part of a plurality of spaced supporting members, said unit including an apron having a width greater than its length and being adapted simultaneously to serve a plurality of spindles, table means encircled by said apron and adapted to be supported by two of said supporting members, a return guide element of substantially the same length as the width of said last-mentioned apron, said return guide element being encircled by said apron and being adapted to be supported by said table means, and a driving shaft section encircled by said apron and forming a section of said sectional driving shaft, said last-mentioned driving shaft section being selectively insertable into or removable from said bearing means of said supporting members.
  • a spinning or preparing machine which comprises in combination: a plurality of spindles,
  • a drawing field bearing means spaced from each other so as to subdivide said drawing field into a plurality of drawing field sections of such a width that each drawing field section serves at least two spindles, a plurality of aprons, each of said aprons extending over the entire width of a drawing field section so that when all aprons are assembled the total upper apron surface of the entire drafting field forms a continuous surface interruptedby said bearing means only, and a sectional driving shaft encircled by all of said aprons, all sections of said shaft when in assembled position being in alignment with each other i and each of said shaft sections being provided with means for detachably rotatably engaging the normally adjacent section of said shaft.
  • a spinning or preparing machine which comprises in combination, a plurality of spindles, a drawing field, bearing means spaced from each other so as to subdivide said drawing field into a plurality of drawing field sections of such a width that each drawing field section serves at least two spindles, a plurality of aprons, each of said aprons extending over the entire width of a drawing field section so that said aprons in their assembled position present a continuous drafting surface interrupted by said bearing means only, and a driving shaft supported by said bearing means and normally encircled by and in engagement with all of said aprons for driving the same, said driving shaft comprising a plurality of driving shaft sections arranged in alignment with each other and each driving shaft section being provided with means for directly rotatably engaging another driving shaft section 10 and being removable from and insertable into said frame together with the respective apron as a unit.
  • a spinning or preparing machine which comprises in combination, a plurality of spindles, a drawing field, bearing means spaced from each other so as to subdivide said drawing field into a plurality of drawing field sections of such a width that each drawing field section serves a plurality of spindles, a plurality of aprons, each of said aprons extending over the entire width of a drawing field section so that said aprons in their assembled position present a continuous drafting surface interrupted by said bearing means only, and a driving shaft supported by said bearing means and normally encircled by and in engagement with all of said aprons for driving the same, said driving shaft comprising a plurality of driving shaft sections arranged in alignment with each other, each of said driving shaft sections being journalled in two adjacent bearing means and being adapted selectively to be directly connected to or disconnected from the normally adjacent driving shaft section for removing the respective apron from or inserting the same into the respective drawing field section.
  • a spinning or preparing machine which comprises in combination, a plurality of spindles, a drawing field, bearing means spaced from each other so as to subdivide said drawing field into a plurality of drawing field sections of such a width that each drawing field section serves at least two spindles, each of said bearing means being provided with a first bearing surface and with a second bearing surface, a plurality of aprons, each of said aprons extending over the entire width of a drawing field section so that said aprons in their, assembled position present a continuous drafting surface interrupted by said bearing means only, means respectively encircled by said apron for supporting the upper portion thereof, each of said last mentioned means having its ends supported by the first bearing surfaces of the two adjacent bearing means, and a sectional driving shaft supported by said bearing means and normally encircled by and in engagement with all of said aprons for driving the same, each section of said sectional driving shaft having its ends journalled in the second bearing surface of the two adjacent bearing means in detachable rotatable engagement
  • a machine unit for use in connection with a drawing frame of a spinning or preparing machine having a sectional driving shaft and having bearing means at each roller stand for respectively supporting the shaft sections of said shaft, said unit comprising in combination, an endless belt having a width substantially equalling the distance between two adjacent roller stands, a shaft section encircled by said endless belt and laterally protruding therefrom, said shaft section being adapted to bejournalled in bearing means at two adjacent roller stands and having its end portions provided with coupling means for coupling the same to the normally adjacent driving shaft sections, reversing means encircled by said endless belt and spaced from said lastmentioned shaft section, and means connected to said reversing means and arranged for support by two adjacent roller stands.
  • a machine unit which includes means operatively connected to said table means for varying the distance between said table means and said return guide element.
  • a machine unit for use in connection with a drawing frame of a spinning or preparing machine which has a driving shaft that extends throughout the length of the machine for driving a plurality of endless belts and comprises a plurality of substantially equal driving shaft sections adapted selectively to be drivingly connected with or disconnected'from each other, said unit including an endless belt having a width nearly equalling the length of a driving shaft section, a driving shaft section encircled by said endless belt for arrangement in one loop thereof, said driving shaft section extending throughout the entire length of said belt, and a return guide element encircled by said belt and extending throughout the entire length of said belt for arrangement in the other loop of said belt, said unit being selectively insertable into or removable from said drawing frame as an entirety so as to effect or interrupt driving connection between said last-mentioned driving shaft section and the adjacent driving shaft sections in said frame while simultaneously respectively tensioning or relieving the tension of the endless belt per-tain' ing to said unit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US192133A 1949-10-29 1950-10-25 Drawing frame or system comprising an endless belt for conveying the fibrous material in slubbing, roving, and spinning frames Expired - Lifetime US2686939A (en)

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BE (1) BE499025A (ja)
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900673A (en) * 1955-12-23 1959-08-25 Brooksbank Wallace Ronald Textile machinery
US2912722A (en) * 1957-05-15 1959-11-17 Dayton Rubber Company Fiber processing unit
US2979782A (en) * 1954-12-22 1961-04-18 Bancroft Brillotex Internat S Machine and process for cleaning wool and other textile fibres
US3341901A (en) * 1965-08-16 1967-09-19 Kitamura Shinzo Long apron type draft apparatus used in textile machines
US3898712A (en) * 1972-08-18 1975-08-12 Platt International Ltd Fibre control arrangements for textile drafting systems
US4097964A (en) * 1975-09-12 1978-07-04 N. Schlumberger & Cie. Machine for drawing textile fibres
WO2009056124A1 (de) * 2007-10-30 2009-05-07 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Vorrichtung zur zuführung von fasermaterial zu einer fasern verarbeitenden maschine

Families Citing this family (2)

* 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
DE1105775B (de) * 1957-05-15 1961-04-27 Dayco Corp Endloses umlaufendes Riemchen fuer Streckwerke von Spinnmaschinen

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB554584A (ja) *
US461855A (en) * 1891-10-27 William thompson
US1092631A (en) * 1912-05-25 1914-04-07 Fernando Casablancas Spinning-frame.
US1783301A (en) * 1930-02-06 1930-12-02 Morton Charles Spinning frame
GB468850A (ja) * 1935-01-15 1937-07-14
US2132299A (en) * 1937-06-16 1938-10-04 H & B American Machine Company Drawing mechanism for textile slivers or rovings
US2141219A (en) * 1936-05-11 1938-12-27 H & B American Machine Company Drafting mechanism
US2252531A (en) * 1939-10-11 1941-08-12 Saco Lowell Shops Spinning frame
US2522277A (en) * 1949-01-08 1950-09-12 Boston Woven Hose & Rubber Co Card apron
US2553456A (en) * 1947-10-13 1951-05-15 Dayton Rubber Company Rub apron for use on textile machines

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB554584A (ja) *
US461855A (en) * 1891-10-27 William thompson
US1092631A (en) * 1912-05-25 1914-04-07 Fernando Casablancas Spinning-frame.
US1783301A (en) * 1930-02-06 1930-12-02 Morton Charles Spinning frame
GB468850A (ja) * 1935-01-15 1937-07-14
US2141219A (en) * 1936-05-11 1938-12-27 H & B American Machine Company Drafting mechanism
US2132299A (en) * 1937-06-16 1938-10-04 H & B American Machine Company Drawing mechanism for textile slivers or rovings
US2252531A (en) * 1939-10-11 1941-08-12 Saco Lowell Shops Spinning frame
US2553456A (en) * 1947-10-13 1951-05-15 Dayton Rubber Company Rub apron for use on textile machines
US2522277A (en) * 1949-01-08 1950-09-12 Boston Woven Hose & Rubber Co Card apron

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979782A (en) * 1954-12-22 1961-04-18 Bancroft Brillotex Internat S Machine and process for cleaning wool and other textile fibres
US2900673A (en) * 1955-12-23 1959-08-25 Brooksbank Wallace Ronald Textile machinery
US2912722A (en) * 1957-05-15 1959-11-17 Dayton Rubber Company Fiber processing unit
US3341901A (en) * 1965-08-16 1967-09-19 Kitamura Shinzo Long apron type draft apparatus used in textile machines
US3898712A (en) * 1972-08-18 1975-08-12 Platt International Ltd Fibre control arrangements for textile drafting systems
US4097964A (en) * 1975-09-12 1978-07-04 N. Schlumberger & Cie. Machine for drawing textile fibres
WO2009056124A1 (de) * 2007-10-30 2009-05-07 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Vorrichtung zur zuführung von fasermaterial zu einer fasern verarbeitenden maschine

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Publication number Publication date
GB709004A (ja)
BE499025A (ja)
FR1027019A (ja) 1953-05-06

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