US3795945A - Apparatus for guiding and loading a weighting roll on spinning machines - Google Patents

Apparatus for guiding and loading a weighting roll on spinning machines Download PDF

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Publication number
US3795945A
US3795945A US00246859A US3795945DA US3795945A US 3795945 A US3795945 A US 3795945A US 00246859 A US00246859 A US 00246859A US 3795945D A US3795945D A US 3795945DA US 3795945 A US3795945 A US 3795945A
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United States
Prior art keywords
roll
weighting
loading
machine frame
flat springs
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Expired - Lifetime
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US00246859A
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English (en)
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W Naegeli
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Pavena AG
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Pavena 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
    • D01H5/46—Loading arrangements
    • D01H5/50—Loading arrangements using springs

Definitions

  • ABSTRACT An apparatus for guiding and loading a weighting roll at spinning machines comprising two rolls forming a nip for thefiber material and defining a material transporting plane. At least one of these rolls is a weighting i roll vertically movable with respect to the material transport plane.
  • a support for the weighting roll is anchored directly or indirectly at the machine "frame via two rigidly clamped flat springs arranged parallel or substantially parallel to the material transport plane, the springs possessing the same or substantially the same length.
  • the present invention relates to a new and improved apparatus for guiding and loading a weighting or pressure roll unilaterally supported, that is, supported in an overhung fashion, and vertically movable with respect to the direction of material throughput of a pair of rolls of spinning machines.
  • the weighting roll generating the pressure upon the fiber material is usually guided in a plane common to both roll axes and movable vertically with regard to the direction of material throughput, so that the weighting roll adapts its positional orientation to the momentary thickness of the loaded either exclusively by its inherent weight or through the action of additional loading devices, such as weights, elastic bodies, and so forth.
  • guiding and loading devices are already known to the art in which the supported end of a unilaterally or overhung supported weighting or pressure load is hingedly connected with a guide arm at the plane common to both axes of the rolls.
  • the guide arm ishingedly connected in turn to the machine frame and locked in its operating position so that the mobility of the weighting roll vertically with respect to the direction of material throughput is insured.
  • Such type devices possess the drawback that owing to the radial and axial play which is necessarily present at both links or pivots, it is impossible to realize an exact guiding of the weighting roll parallel to the axis of the other roll of the same pair, and furthermore, due to friction at the links or pivots, it is not possible to realize equal load distribution. Notwithstanding continuous maintenance, it is impossible to avoid wear at the pivotand guide elements, so that an exact guiding of the weighting roll is further impaired, and generally the life of the guide elements is shortened.
  • Another and more specific object of the present invention relates to improved construction of apparatus for guiding and loading a weighting roll at a spinning machine in an accurate and reliable fashion, the apparatus being relatively simple in construction and design, requires a minimum of maintenance, and is not readily subject to breakdown.
  • the inventive apparatus for guiding and loading two rolls forming a nip throughpassing fiber material.
  • the weighting roll is 2 for the fiber material at a spinning machine and defining a material transport plane, and wherein at least one of the rolls is a weighting roll which is vertically movable with respect to the plane of material transport, contemplates the provision of a support for the I weighting roll which is directly or indirectly anchored at the machine frame through the agency of two rigidly clamped flat springs arranged in parallelism or substantial parallelism with respect to one another and with regard to the material transport plane, these flat springs having the same or substantially the same length.
  • the flat or plate springs can be anchored at the side facing the machine frame in a holder detachably and adjustably mounted at the machine frame.
  • the flat springs are arranged to be displaced through a distance in a weighting plane extending through the axes of the two rolls and to load the weighting roll by a restoring force due to their elastic deformation acting in the direction of the weighting plane. It has also been found to be advantageous to apply an additional external load force to the bearing support.
  • the direction of the load force can be selected such that, with respect to the axis of the weighting or pressure roll, it is inclined towards the outside and acts in the direction of the other roll upon the bearing support. It can also be advantageous to drive the roll from the machine frame through the agency of a flexible shaft extending through but clearing the bearing support, in other words, a flexible shaft which extends with play through the bearing support.
  • FIG. 1 is a fragmentary side view, partly in section, of a first embodiment of inventive apparatus for guiding and loading a roll;
  • FIG. 2 is a cross-sectional view of the guidingand loading apparatus of FIG. 1, taken substantially along the line II-II thereof;
  • FIG. 3 is a fragmentary side view of a modified embodiment of apparatus for guiding and loading a roll embodying the teachings of this invention
  • FIG. 4 schematically illustrates details of an alternate embodiment from that shown in FIG. 3, and indicating the forces which are acting at such arrangement;
  • FIG. 5 is a force diagram of the arrangement depicted in FIG. 4.
  • FIG. 6 is a plan view of a further embodiment of guidingand loading apparatus for a weighting roll as contemplated by the invention.
  • FIGS. 1 and 2 there is shown a respective unilaterally or overhung supby referring to FIG. 1, the roll 1 is axially supported at the machine frame 3 and is driven through the agency of a suitable and therefore not particularly illustrated means via its axle or shaft portion 4.
  • the other roll or roller 2 is provided with a hub 5 rotatably supported at a bearing support 6.
  • Axial guiding of roll 2 is insured on the one hand by a support member 7 of the bearing support 6 and, on the other hand, by an adjusting or positioning ring member 8.
  • the bearing support 6 i.e., in its support member 7 there are arranged at right angles to the weighting plane E and parallel to the plane F two flat or plate springs9 and 10 of equal length, these flat springs 9 and 10 being rigidly mounted at the support member 7 at the same mutual spacing d from one another.
  • the opposite ends of these flat springs 9 and 10 are rigidly anchored at the same mutual spacing d in the machine frame 3.
  • FIG. 3 there is illustrated therein a modified embodiment of inventive apparatus for guiding and loading a weighting roll 11, this arrangement resorting to the technique of external load application as such is used, for instance, in drafting arrangements of spinning machines.
  • the weighting roll 11 is rotatably supported in an antifriction bearing 12 at the bearing support 13.
  • Bearing support 13 is provided with an enlarged support member 14 at which there are rigidly mounted two flat or plate springs 15 and 16.
  • the width of the flat springs 15 and 16 is preferably much larger than their thickness.
  • Both springs 15 and 16 are of substantially the same length and their other ends are rigidly anchored so as to be substantially mutually parallel to one another in a holder 17 which, in turn, is detachably and adjustably mounted at the machine frame 18. Suitable fixing means 19 are employed for attaching the holder 17 to the machine frame 18.
  • the rigidly mounted flat springs 15 and 16 in their relaxed position merely function as a guide element in the weighting plane disposed at right angles to the transporting plane F.
  • holder 17 is provided with an extension 21 for guiding a loading pin 22 in a direction perpendicular to the transport plane F.
  • An elastic loading or pressure element for instance a loading or pressure spring 23, is supported at this loading pin 22.
  • a disk 24 adjustably mounted at the loading pin 22 permits varying the load acting at the support member 14 or the bearing support 13 respectively.
  • This loading force P generated by the loading spring 23, and in contrast to the arrangement depicted in FIG. 1, constitutes an external loading force.
  • the loading force P generates a reaction force P from the roll 20 which equalizes the loading force P, i.e., P P
  • the moment produced by the forces P and P is compensated by a counter-moment generated by the flat springs 15 and 16, wherein flat spring 15 is subjected to a tensile force K and flat spring 16 is subjected to a compression force K
  • These forces K and K are of the same magnitude.
  • the weighting roll 11, its guiding elements 13, 14, 15 and 16 and the loading elements 21, 22, 23 and 24 together with their common holder 17 form a unit which can be attached to or detached from the machine frame 18.
  • the mounting work and the possible exchange of such apparatus is thus considerably simplified and the time required correspondingly shortened.
  • FIG. 4 schematically illustrates in detail a variant embodiment from the one depicted in FIG. 3.
  • reference character P represents an external loading force which is applied in a direction which is not vertical or perpendicular to the roll axis
  • reference character P represents the force generated by the weighting roll, not here particularly shown, and acting in the plane of symmetry of such weighting roll.
  • the straight line C connects the points of intersection of the pairs of forces P /K and F' /K
  • both flat springs 26 and 27 are subjected to tension by virtue of the action of the forces K and K; respectively, the magnitude of such tensile force being indicated in the force diagram of FIG. 5.
  • the action of such external loading force upon the bearing support causes both flat springs 26 and 27 to be subjected to tensile forces of the same magnitude, i.e., K. as best seen by referring to FIG. 5. If, however, the direction of the loading force, starting from the straight line C, is located at the sector A, then, the flat spring 27 is still subjected to a compressive force.
  • FIG. 6 A further embodiment of the invention is shown in plan view in FIG. 6 and is in the form of an impregnation apparatus for textile fibers constituting the subject matter of my copending, commonly assigned, United States application Ser. No. -1 87,966, filed Dec. 10, 1971, entitled Apparatus for Impregnating Textile Fibers, and to which reference may be readily had.
  • FIG. 6 the important features of the embodiment of FIG. 6 necessary for fully understanding the underlying concepts of the invention will now be considered hereinafter.
  • a disk member 28, hereinafter conveniently referred to as a master disk is mounted and axially guided at the machine frame through the agency of its shaft 29.
  • the master disk 28 is likewise driven via the shaft 29 by any suitable drive unit.
  • Two cover plates 31 and 32 retained at a predetermined mutual spacing from one another, are guided by the master disk 28 in the disk plane and for radial, guidance rest upon any suitable and therefore non-illustrated supports.
  • a disk 33 opposite the master disk 28 is axially guided in the disk plane by the cover plates 31 and 32, disk 33 being rotatably and axially movably supported through the agency of the needle bearing 34 upon a bearing support 35.
  • Two flat springs 37 and 38 of substantially the same length are rigidly clamped at the enlarged end part 36 of the bearing support and the other ends of such flat springs are anchored in substantial parallelism withone another in a holder 39.
  • This holder 39 is adjustably and detachably connected to the machine frame 30.
  • the disk 33 is displaceably guided in the horizontal plane and perpendicular to the transport plane F in accordance with a parallelogram guide system, whereas its axial position at the bearing support 35 is determined by the cover plates 311 and 32.
  • the external loading of the disk 33 is generated, for instance, by means of a spring 46) acting via a loading pin 41 upon the end part 36 of the bearing support 35 and thus acts upon such bearing support.
  • a shaft 42 is axially guided and supported in any suitable manner in-the holder 39 and such shaft is driven via the drive elements 43 and M by means of the shaft 29.
  • Drive elements 43 and 44 may be, for instance, gears.
  • a conventional flexible shaft 45. is mounted in the shaft 42, flexible shaft 45 extending with play through a bore 46 of the bearing support 35.
  • a gear 47 is provided at the end of the flexible shaft 45, as shown, and this gear 47 is axially shiftable and meshes with a gear 48 provided at the hub 49 of the disk 33.
  • the drive of the disk 33 adapts through the agency of the gears 47 and 48 to the axial position of the disk 33 determined by the cover plates 31 and 32.
  • the inventive guiding-and loading apparatus manifests itself by virtue of its extremely precise parallel guiding of the weighting roll without play in the weighting plane, and in ,spite of the absence of play functions completely without friction. Hence, any type of wear is precluded which might be caused by movement of the weighting roll in adapting its position to the thickness of the throughpassing fiber material. As a result, maintenance is not required, even over long periods of use. Furthermore, the inventive apparatus also permits maintaining the mass of the moving components small, something which is particularly suitable for high throughput speeds of the material undergoing processing.
  • An apparatus for guiding and loading at least one roll of a spinning machine having a machine frame comprising a pair of rolls forming a nip for fiber material and defining a material transport plane, at least one of said rolls of said pair of rolls defining a weighting roll vertically movable with respect to the material transport plane, support means for unilaterally supporting said weighting roll, and guiding and loading means for at least one roll including a pair of mutually spaced flat springs each having opposed ends, said flat springs having neighboring ends rigidly mounted to said support means and opposite neighboring ends rigidly connected with said machine frame for anchoring said support means at said machine frame, said flat springs having deflectable portions between their opposite ends, said flat springs being arranged at least with their ends substantially parallel to one another and to said material transport plane for parallelly guiding said support means with respect to the material transport plane, the deflectable portions of said pair of flat springs possessing substantially the same length.
  • said guiding and loading means further including means for generating an external loading force acting upon said support means of the weighting roll.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US00246859A 1971-05-07 1972-04-24 Apparatus for guiding and loading a weighting roll on spinning machines Expired - Lifetime US3795945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH673571A CH553857A (de) 1971-05-07 1971-05-07 Fuehrungs- und belastungsvorrichtung fuer eine druckwalze an spinnereimaschinen.

Publications (1)

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US3795945A true US3795945A (en) 1974-03-12

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US00246859A Expired - Lifetime US3795945A (en) 1971-05-07 1972-04-24 Apparatus for guiding and loading a weighting roll on spinning machines

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US (1) US3795945A (de)
JP (1) JPS5622967B1 (de)
BE (1) BE782576A (de)
BR (1) BR7202794D0 (de)
CH (1) CH553857A (de)
DD (1) DD95989A5 (de)
DE (1) DE2217619C2 (de)
ES (1) ES402692A1 (de)
FR (1) FR2137475B1 (de)
GB (1) GB1375265A (de)
IN (1) IN139012B (de)
IT (1) IT952274B (de)
NL (1) NL7203485A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101429691B (zh) * 2007-11-10 2012-04-25 欧瑞康阿库泰斯泰斯博斯德国公司 上罗拉承载件及加压臂
CN107883903A (zh) * 2017-11-08 2018-04-06 日照裕鑫动力有限公司 纺纱机摇架自动检测装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1088413B (it) * 1977-12-06 1985-06-10 M P R E Spa Sa Dispositivo tenditore di una cinghia per comandare la rotazione di organi allineati,come fusi di macchine tessili

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB829829A (en) * 1956-08-23 1960-03-09 Tmm Research Ltd Improved means for weighting machine rollers
GB830614A (de) * 1955-06-30 1960-03-16
GB860273A (en) * 1957-12-06 1961-02-01 Tmm Research Ltd Improvements in textile drafting apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE882214C (de) * 1947-07-31 1953-07-06 Mackie & Sons Ltd J Lagerung fuer die Druckwalze des Lieferwalzen-Paares in Streckwerken von Spinnmaschinen
DE1169342B (de) * 1962-06-02 1964-04-30 Schubert & Salzer Maschinen Hochschwenkbarer Oberwalzen-Trag- und Belastungsarm fuer Spinnereimaschinenstreckwerke
US3341902A (en) * 1964-06-29 1967-09-19 Om Ltd Device for pressing top roller of textile machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB830614A (de) * 1955-06-30 1960-03-16
GB829829A (en) * 1956-08-23 1960-03-09 Tmm Research Ltd Improved means for weighting machine rollers
GB860273A (en) * 1957-12-06 1961-02-01 Tmm Research Ltd Improvements in textile drafting apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Schubert, German Application 1,169,342 Printed April 30, 1964 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101429691B (zh) * 2007-11-10 2012-04-25 欧瑞康阿库泰斯泰斯博斯德国公司 上罗拉承载件及加压臂
CN107883903A (zh) * 2017-11-08 2018-04-06 日照裕鑫动力有限公司 纺纱机摇架自动检测装置
CN107883903B (zh) * 2017-11-08 2023-11-24 日照裕鑫动力有限公司 纺纱机摇架自动检测装置

Also Published As

Publication number Publication date
NL7203485A (de) 1972-11-09
FR2137475B1 (de) 1976-10-29
FR2137475A1 (de) 1972-12-29
IT952274B (it) 1973-07-20
DE2217619C2 (de) 1982-12-02
BE782576A (fr) 1972-10-24
DE2217619A1 (de) 1972-11-16
GB1375265A (de) 1974-11-27
DD95989A5 (de) 1973-02-20
BR7202794D0 (pt) 1973-07-10
ES402692A1 (es) 1975-04-01
JPS5622967B1 (de) 1981-05-28
IN139012B (de) 1976-04-24
CH553857A (de) 1974-09-13

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