US3059284A - Stripping device for the clearer roller in drafting arrangements - Google Patents

Stripping device for the clearer roller in drafting arrangements Download PDF

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Publication number
US3059284A
US3059284A US3191A US319160A US3059284A US 3059284 A US3059284 A US 3059284A US 3191 A US3191 A US 3191A US 319160 A US319160 A US 319160A US 3059284 A US3059284 A US 3059284A
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United States
Prior art keywords
clearer roller
clearer
comb
roller
drafting
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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
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US3191A
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English (en)
Inventor
Naegeli Werner
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
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Publication date
Application filed by Joh Jacob Rieter und Cie AG filed Critical Joh Jacob Rieter und Cie 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
    • D01H5/60—Arrangements maintaining drafting elements free of fibre accumulations

Definitions

  • the present invention relates to a stripping device for clearer rollers in drafting arrangements of spinning machines.
  • the device according to the invention includes a comb provided with pointed teeth or needles whose points are placed adjacent to the periphery of a clearer roller which rests on one or more top rolls and which has a surface capable of accumulating fibrous material and moving at a velocity which is different from the circumferential speed of the top roll or top rolls on which the clearer roller rests.
  • the invention relates also to the structure of the comb and its position relative to the clearer roller. It has been found that the angle at which the comb is set relative to the surface of the clearer roller depends on the number of teeth per unit of length of the comb, on the direction and velocity of the air current, on the type of the fibre accumulating covering of the clearer roller and on the type of the spinning material.
  • the teeth of the comb are set at an angle a between 80 and 110 with respect to a tangential plane on the line of intersection of the surface of the clearer roller and the plane of the comb, the angle being measured on the side of the comb onto which runs the surface of the rotating clearer roller.
  • the teeth are inclined longitudinally of the comb at an angle between 60 and 90 with respect to the aforedescribed line. With this position of the teeth of the comb, the fibre material is easily stripped from the clearer roller and the material which may adhere to the points of the teeth is efiiciently blown away by an air current flowing alongside and in axial direction of the clearer roller.
  • FIG. 1 is a perspective view of a' drafting arrangement with the lid forming part of the shell or casing of the arrangement in open position. 7
  • FIG. 2 is a cross sectional view .of'the drafting ar- 'rangement shown in FIG. 1.
  • FIG. 3 is a perspective view of an analogous cleaning or stripping device.
  • FIG. 4 is a perspective view of a further modification of the apparatus according to the invention.
  • FIG. 5 is a cross sectional View of the .device shown in FIG. 4. 7
  • numeral 4 designates a slightly conical clearer roller which rests on top rolls 1 and 2 of a drafting arrangement within a casing '3 whose lid is open.
  • the clearer roller 4 is provided with a covering made of plush, woolen cloth, or
  • the direction of the axial movement of the latter can be so controlled that shaft 5 extends from the clearer rollerin a direction which is opposite to the direction of the air current which is indicated by arrows in FIG. 1.
  • a free passage is provided for the fly which is picked oli the surface of the clearer roller by the device which will be described below.
  • a clamp 8 is mounted on each of the roller supports 7 of the drafting arrangement for clamping a rod 9 to the stationary supports 7.
  • the center portion of the rod 9 is provided with an axial slot 10 which is slightly longer than the clearer roller 4 and receives a comb plate 11.
  • the latter is fixed on the rod 9 in a desired position by means of bolts 12 extending through apertures 13 which are normal to the longitudinal axis of the rod 9 and oblong to have a longitudinal axis parallel to the rod 9.
  • Needles 14, spaced approximately 2 to 5 mm., are mounted on the lower edge of the comb plate 11 similarly as is done in comb strips of combing machines or gill boxes.
  • the needles 14 are placed at a suitable angle 0: with respect to the tangential plane t (FIG. 2) on the surface of the clearer roller 4 at the line of intersection of the plane in which the needles are located with the surface of the clearer roller, the angle a being on the side of the comb towards which the surface of the clearer roller moves when the drafting arrangement is in normal operation.
  • the angle a is which is about the lower limit of this angle.
  • the rod 9 which is mounted on the supports 7 is provided with a protuberance 15 (FIG. 2) fitting into a complementary recess 16 in the slightly resilient clamp 8. In this way, bending of the needles or of the comb plate, if the latter is forcibly rotated, is prevented because in that case, the resilient end of the clamp 8 is lifted by the protuberance so that the rod 9 together with the comb plate 11 is removed from the clearer roller.
  • the comb plate 17 shown in FIG. 3 is provided with teeth 18 which are produced by suitably machining one marginal portion of the comb plate.
  • the needles or points 18 are slanted to the left. This is of advantage, if the fiy-removing air current is directed from right to left in axial direction of the clearer roller, as indicated by arrows in FIG. 3. In this way, fibres adhering to the points 18 are easily blown away by the air current.
  • the angle ,6 at which the center lines m of the points or teeth 18 are inclined with respect to the line L in which the surface of the clearer roller is intersected by the plane in which the needles are located, is preferably 60 to 90.
  • the clearer roller 19 rests on two top rolls 1 and 2 which rotate at different speeds so that the circumferential speed of the surface of the clearer roller is between the circumferential speeds of the top rolls 1 and 2. In this way, a relative sliding of the top rolls 1 and 2 and the clearer roller is obtained which is essential for producing the desired wiping effect.
  • Axial movement of the clearer roller 19 in FIG. 3 is prevented by a strap 20 which is swingably supported on the rod 9 between the comb plate 17 and a setting ring 21.
  • the free end of the strap 20 rests between two rings 23 and 24 mounted on a shaft 22 extending from the right end of the clearer roller.
  • the strap 20 is preferably made of a lowfriction synthetic material which has a high resistance to abrasion, for example Nylon 66, or of metal having like qualities, particularly if grounding of electrostatic charges is desired.
  • a support 26 is mounted on each of the clamps 8, the. supports 26 having surfaces frictionally engaging shafts 27 and 28 extending from the ends of the clearer roller 25. Gravity causes frictional engagement between these shafts and the supports 26 so that a braking effect on the clearer roller is produced.
  • the active diameter of the shaft extensions 27 and 28 may be increased by mounting rings 29 on the shaft extensions 27 and 28 as shown in FIG. 5.
  • the brake moment and the dilference between the circumferential speeds of the top roll 1 and of the clearer roller can be made to fit the general conditions of the drafting and cleaning arrangement.
  • the position of the surface portion of the supports 26 which is in contact with the shaft extensions of the clearer roller 25 is important because it defines the component of the gravity force which produces friction.
  • the angle on formed by the needles 18 and the tangent t is 110, in contradistinction to the angle shown in FIG. 2 which is
  • the angle a must be chosen according to the number of comb teeth per unit of length of the comb, to the direction and velocity of the suction air current, to the material of the covering of the clearer roller, and to the spinning material.
  • the aforedescribed angle [3 also has some influence on the angle 0:. Tests have shown that, generally, an angle a between 80 and 110 produces satisfactory results.
  • the fibrous material accumulating on the rotating clearer rollers 4, 19, 25 is seized by the points of the comb teeth when the layer of fibrous material accumulated on the clearer roller reaches a certain diameter and is picked off, i.e., removed from this layer so that the fibres move into the space between the clearer roller and the casing 3.
  • the device according to the invention assures that the thickness of the layer of fibrous material accumulated on the clearer roller never exceeds the measure which is defined by the distance between the needle points and the periphery of the clearer roller. No additional fibres can be accumulated on the clearer roller and no removal of the roller and periodic cleaning by the operator are required.
  • a drafting arrangement for spinning machines having a plurality of top rolls, support means for said rolls, and a clearer roller having a surface capable of accumulating fibres and resting on at least one of said top rolls; means for conducting an air current adjacent to the clearer roller, and a comb having pointed teeth in the immediate vicinity of and not engaging said surface for removing fibres accumulated on said surface and diverting the fibres into said air current.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US3191A 1959-01-23 1960-01-18 Stripping device for the clearer roller in drafting arrangements Expired - Lifetime US3059284A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH6869059 1959-01-23

Publications (1)

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US3059284A true US3059284A (en) 1962-10-23

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ID=4528936

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Application Number Title Priority Date Filing Date
US3191A Expired - Lifetime US3059284A (en) 1959-01-23 1960-01-18 Stripping device for the clearer roller in drafting arrangements

Country Status (5)

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US (1) US3059284A (de)
AT (1) AT218928B (de)
DE (1) DE1148917B (de)
FR (1) FR1246500A (de)
GB (1) GB881707A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126586A (en) * 1960-10-10 1964-03-31 Noguera
US3247551A (en) * 1963-03-11 1966-04-26 Ideal Ind Apparatus and method for conditioning textile material being drafted
US3408698A (en) * 1965-11-02 1968-11-05 Franz X Rosele Apparatus for cleaning the drawing rollers in spinning machines
US4677710A (en) * 1984-05-07 1987-07-07 Maschinenfabrik Rieter A.G. Arrangement for cleaning the pressing rollers of a combing machine
CN101570906B (zh) * 2009-05-25 2010-09-08 常熟市宝沣特种纤维有限公司 并条机的牵伸机构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262846B (de) * 1963-08-14 1968-03-07 Ernst Jacobi & Co K G Kammfoermiger Faserabstreifer fuer Putzwalzen od. dgl. an Spinnmaschinen
DE1265633B (de) * 1963-08-14 1968-04-04 Ernst Jacobi & Co K G Faserabstreifer fuer Putzwalzen, Putztuecher u. dgl. an Streckwerken von Spinnmaschinen
DE19739185A1 (de) * 1997-09-08 1999-03-11 Truetzschler Gmbh & Co Kg Vorrichtung an einer Spinnereivorbereitungsmaschine, z. B. Karde, Strecke mit rotierenden glatten Walzen
DE10252098A1 (de) * 2002-11-08 2004-05-27 Staedtler + Uhl Kg Fixkamm und Fixkammhalter für eine textile Kämm-Maschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1911930A (en) * 1930-10-01 1933-05-30 Schultze Walter Traveling cleaning device for the stretching mechanism or delivery mechanism of spinning or twisting machines
US2164443A (en) * 1937-08-26 1939-07-04 Nelson A Batchelder Textile drafting means

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB219244A (en) * 1924-01-10 1924-07-24 Asa Lees & Company Ltd Improvements in or relating to drawing frames, sliver lap, ribbon lap and like machines for treating textile fibres

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1911930A (en) * 1930-10-01 1933-05-30 Schultze Walter Traveling cleaning device for the stretching mechanism or delivery mechanism of spinning or twisting machines
US2164443A (en) * 1937-08-26 1939-07-04 Nelson A Batchelder Textile drafting means

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126586A (en) * 1960-10-10 1964-03-31 Noguera
US3247551A (en) * 1963-03-11 1966-04-26 Ideal Ind Apparatus and method for conditioning textile material being drafted
US3408698A (en) * 1965-11-02 1968-11-05 Franz X Rosele Apparatus for cleaning the drawing rollers in spinning machines
US4677710A (en) * 1984-05-07 1987-07-07 Maschinenfabrik Rieter A.G. Arrangement for cleaning the pressing rollers of a combing machine
CN101570906B (zh) * 2009-05-25 2010-09-08 常熟市宝沣特种纤维有限公司 并条机的牵伸机构

Also Published As

Publication number Publication date
GB881707A (en) 1961-11-08
DE1148917B (de) 1963-05-16
FR1246500A (fr) 1960-11-18
AT218928B (de) 1961-12-27

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