US3742694A - Spinning and twisting apparatus - Google Patents

Spinning and twisting apparatus Download PDF

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Publication number
US3742694A
US3742694A US00149291A US3742694DA US3742694A US 3742694 A US3742694 A US 3742694A US 00149291 A US00149291 A US 00149291A US 3742694D A US3742694D A US 3742694DA US 3742694 A US3742694 A US 3742694A
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United States
Prior art keywords
whorl
ring
latch
slideable
spindle
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Expired - Lifetime
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US00149291A
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English (en)
Inventor
H Speiser
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SKF GmbH
Original Assignee
SKF Kugellagerfabriken GmbH
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Filing date
Publication date
Priority claimed from DE19707020663 external-priority patent/DE7020663U/de
Application filed by SKF Kugellagerfabriken GmbH filed Critical SKF Kugellagerfabriken GmbH
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/04—Spindles
    • D01H7/08—Mounting arrangements
    • D01H7/14—Holding-down arrangements

Definitions

  • the present invention relates to spring and twisting apparatus for yarns and, in particular, to means for coupling a whorl and spindle.
  • the latch element is freely mounted within the bearing housing and is capable of being rotated and twisted relative to the spindle shaft. For this reason, it had been attempted to employ springs to secure the latch elements within the throat; however, this last means urged the spindle shaft in an eccentric direction within the housing so that frequently at high rotational speeds the latch member would be so eccentrically urged that it was thereafter impossible to align the latch with the abutment to effect shifting of the upper portion or whorl of the apparatus.
  • this is obtained by arranging within the throat of the bearing housing and within the surrounding skirt of the whorl a coupling carrier.
  • Either the coupling carrier or the surrounding skirt is provided with a concentric fixed abutment member and a transverse slideable latch member surrounding the carrier resiliently biased to be normally eccentric to the spindle axis and engage the abutment member.
  • the whorl can be readily disengaged and separated.
  • the sidewise movement of the latch further insures secure interlocking between the elements and virtual elimination of an effect caused by the torque or centrifugal action of the device.
  • the eccentric position of the sliding latch with respect to the opening can be exactly maintained.
  • the coupling carrier intended according to the present invention can further function as the bearing ring for the spindle roller assembly and can be securely fixed within the throat of the housing to provide a secure and more or less rigid coupling connection.
  • the slideable latch member can take many forms.
  • Suitable forms can be of an oval configuration or of a U-shape which, under the effect of its rotation, can be caused to slide in the direction of the opening; i.e., the tool entrance opening.
  • the latch member can be automatically securedly positioned in the operative relationship whenever the spindle is rotated.
  • the slideable latch may comprise a ring-like member arranged to slide transversely of the axis of the spindle.
  • the upper end of the carrier may be conically formed to enable it to be pushed easily through the ring and the dimension of the bore of the ring must be greater than the extent of the concentric abutment member so that the abutment member may be axially moveable through it.
  • the latch slide may be a ring, a U-shaped spring clip or another similar means. In this instance, however, the external diameter of the latch must be smaller than that of the abutment.
  • a simple and easily assembled arrangement is obtained when the radially slideable latch is an annular ring secured within a circumferential groove in the skirt of the whorl.
  • a pin may be provided extending radially from the outer periphery of the latch into the tool opening. This locates the slide latch accurately and maintains its proper location even after considerable rotation.
  • the ring can be supported by a spacer and fixed washer-like fastener aginst axial movement.
  • the spacer may also be provided with flattened shoulders engaging cooperatively flattened shoulders on the ring which prevent further relative rotation or twisting of the ring during operation. In this construction, it is preferable to resiliently bias the ring to have it normally positioned in abutting engagement.
  • the spring be fastened to the ring.
  • a simple leaf spring can be used which chordally bridges the space in the circumferential groove and with its center portion urges the ring eccentric of the spindle axis toward the tool opening.
  • the outer dimension and the inner bore dimension of the ring are chosen so that in its maximum movement during operation the ring does not engage the carrier or the spindle shaft and thereby avoids hindering its movement.
  • a second construction can be obtained where the abutment surface is formed on the whorl and the slideable latch mounted on the carrier.
  • This embodiment has the advantage that the whorl may be maintained in operative balance, being without the eccentric latch member.
  • the spindle can be thus free of undesireable torque or rotational imbalance.
  • the carrier is formed with a reduced shank portion about which the latch is arranged.
  • Flattened lands may also be provided to prevent rotation and or twisting even if ring latches or U-shpaed latches are used.
  • a spring is also used which may be loose or may be fastened to the ring member. The spring is preferably located chordally between the face of the reduced shank portion and the interior of the latch.
  • an enclosed ring latch may be used, although it might be preferred to use the U-shape latch since the free ends of the U-shape latch can be sprung and moved resiliently over the reduced shaft portion; thus facilitaing a change of parts.
  • the U-shpaed member may be simply snaped into place within a narrow groove and thus reduce the complexity and cost of the device.
  • the free ends of the U- shaped member may be provided with means limiting theradial movement of the latch.
  • the cross-piece of the U-shaped member can be made with cut-out curved portions enhancing the springiness of the member and also providing means for receiving and fastening the ends of the prestressed spring.
  • FIG. 1 is a vertical section through a whorl and spindle bearing housing assembly showing the present invention
  • FIG. 2 is a section through line 22 of FIG. 1;
  • FIG. 3 is a view similar to that of FIG. 1 showing a second embodiment
  • FIG. 4 is a section through line 44 of FIG. 3;
  • FIG. 5 is a view similar to that of FIG. 3 showing a second embodiment
  • FIG. 6 is a section through line 6-6 of FIG. 5.
  • FIGS. 1 and 2 show one embodiment of the invention, there is seen a lower whorl supporting spindle assembly
  • a spindle bearing housing 10 formed to have a receiving throat at its upper end.
  • a spindle shaft 12 connected to a drive means and source of power (not illustrated) is concentrically mounted within the housing 10 and is rotatably supported by a roller bearing assembly 14 secured within the receiving throat.
  • the roller bearing assembly 14 is also conventional, comprising a lower retaining ring, an annular cylindrical race and a plurality of rollers engaging the surface of the spindle shaft 12.
  • the whorl is generally conventional in form and is provided with a depending annular skirt surrounding the throat of the spindle bearing housing 10.
  • the spindle shaft 12 extends into the whorl l6 and is scparably connected or keyed to it so that rotation of the spindle causes the whorl to rotate.
  • the skirt or lower portion of the whorl is spaced from the bearing housing 10 to permit rotation and a degree of radial movement.
  • the carrier is provided with radially outwardly directed flanges 20 and 22 at its lower and upper ends respectively.
  • the lower flange 20 grips the wall of the bearing housing 10 within the throat and lies on the race of the roller bearing assembly 14 to form the upper retaining ring.
  • the upper edge of the bearing housing 10 is bent over to form a lip 24 which secures itself on the flange 20 and thereby holds the connecting carrier 18 fast within the throat against axial movement.
  • the carrier 18 has an elongated shank 26 surrounding the spindle shaft 12. The inner wall of the shank 26 is spaced from the spindle shaft to permit free rotation and also some degree of radial clearance.
  • the upper flange 22 of the connecting member has a planar lower face which forms an impact or abutment shoulder while its upper face is conically formed.
  • the abutment surface of the upper flange 22 lies above the slideable securing member generally defined by the numeral 28.
  • the securing member or latch 28 takes the form of a ring or annular member and is secured within a circumferential groove 30 formed in the inner wall of the skirt of the whorl 16.
  • the ring latch 28 has a generally oval shape of smaller overall diameter than the skirt of whorl 16 and is thus radially slideable transversely to the axis of the spindle.
  • the latch 28 is supported by a fastening element 32 mounted in a second groove and a spacer or washer 34 on which the latch 28 lies.
  • the fastening element 32 and spacer 34 have an inner diameter at least larger than the diameter of the flange 22.
  • the oval securing latch ring 28 has an inner bore 36 eccentric to the outer circumference and is located to surround the shank 26 of the connecting carrier 18.
  • the skirt of the whorl 16 is provided with an entrance opening 38 located along the transverse plane of the securing ring 28.
  • the securing latch ring 28 is also provided with a radially extending pin 40 adapted to enter into the entrance opening 38.
  • the bore 36 of the latch ring 28 is dimensioned so that it is at least slightly larger than the diameter of flange 22 and also that it is continuously spaced from the shank 26 even when the ring is transversely shifted to its maximum extent toward the entrance opening 38; i.e., when its outer peripheral surface contacts the inner wall of the whorl skirt.
  • the latch 28 rotates with the whorl 16 because of the connection between the opening 38 and pin 40 and because of its eccentricity and oval shape may tend to move toward the opening 38; however, the diameter of the bore 36 provides the necessary spacing between it and the shank 26 so as not to impede rotation.
  • the diameter of the bore 36 is furthermore made at least as large as the radial extent of the upper flange 22 of the connecting carrier 18 so that the flange may move through it and so that in tis operative position (FIGS. 1 and 2) the latch 28 underlies at least a portion of the abutment face of the upper flange 22.
  • the whorl 16 is thus prevented from moving axially upward by the engagement of the securing ring latch 28 and the abutment surface of the flange 22 even under high rotational speeds and centrifugal action.
  • the latch 28 is further prevented from relative rotation with respect to the whorl by providing the spacer washer 34 with upwardly or axial extending parallel guide rails 42, 44 to either side of the ring 28.
  • the rails 42 and 44 are opposed to each other and are provided with smooth faces 46.
  • the latch 28 is formed with parallel opposed smooth lands 48 and 50 cooperatively engaging the rails 42 and 44 respectively.
  • the latch 28 is, however, normally biased by a chordally arranged leaf spring 52 located opposite and normal to the entrance opening 38 within the groove 30 formed in the inner wall of the whorl. The ends of the spring 52 are secured in the wall of the whorl while its central portion abuts the outer circumference of the ring latch 28 so as to resiliently urge the latch toward the entrance opening 38.
  • the diameter of the bore 36 of the securing ring latch 28 is dimensioned so that even in maximum extent of movement toward the entrance opening at least a small space and radial clearance is provided between the wall of the bore 36 and the wall of the shank 26.
  • FIGS. 1 and 2 provides a secure interlocking coupling-or connection between the spindle bearing housing and the whorl 16.
  • the upper surface of the securing ring latch member 28 will engage with the raially extending abutment surface of the flange 22 preventing axial movment, avoiding separation of the parts, even under extreme speeds of spindle rotation.
  • the spring 52 maintains the ring member 28 securely located in position while the opening 38 and pin 40 together with the side guide rails and lands prevent unwanted rotation and movement. Should the forces operating on either the upper lower assemblies tend to cause the whorlto lift the impact surface and the entrance opening will prevent disengagement.
  • the pencil-like tool is not required, since the conical upper surface of flange 22 will permit the two portions to be easily pushed together.
  • the conically tapered edge engages the interior of the latch 28 in keylike fashion, pushing it to the left against the bias of spring 52 until the abutment surface of the flange 22 snaps over the latch, Thereafter, the spring 52 causes the ring 28 to assume its operating position beneath the abutment surface.
  • the device is basically constructed in the same way as in the prior embodiment except that the abutment surface is formed on the inner wall of the whorl itself and that the upper part of the connecting carrier is modified. Otherwise, the spindle bearing housing, the whorl, and the lower portion of the connecting carrier are identical with the first embodiment and shall not be further described.
  • the connecting carrier generally defined by numeral 60, is fixed within the throat of the spindle bearing housing 62, extending axially outwardly therefrom in a shank or neck portion 64 of smaller diameter spaced from the inner most edge of the interior wall of the whorl. Extending upwardly from the shank 64 is a second neck portion 66 of even a smaller diameter, forming an inwardly tapering steplike end to the carrier 60.
  • the step 64 and 66 define an annular shoulder 68 on which a latch member generally having the numeral 70 rests.
  • the extending step portion 66 is provided with a pair of parallel opposed flattened land portions 72 and 74 on each side and the latch is also provide with similarly formed flattened lands 76 and 78 corresponding therewith.
  • the ring latch 70 is prevented from rotating about the step 66.
  • the latch 70 is provided with a central bore 80 which has a greater extent in the transverse direction; i.e., parallel to the lands 76 and 78, than the diameter of the step 66.
  • the latch 70 is radially slideable from right to left as seen in the figures.
  • a leaf spring 82 is located in the space between the step 66 and the inner wall-of the bore 80.
  • the leaf spring has its ends secured in the wall of the bore 80 and its central portion abut in the engagement against the cylindrical surface of the shank 66.
  • the leaf spring 82 thus urges the latch 70 to the right as seen in FIG. 4.
  • the whorl 84 is provided with an entrance opening 86 positioned on the right adjacent to the edge of the latch 70.
  • the latch 70 has an outer dimension approximately equal to the diameter of the shank 64 and is dimensioned so as not to engage the surface of the whorl. Because of the lands 72 and 74 on step 66, the latch 70 is prevented from rotating.
  • the latch 70 is prevented from moving axially by a spacer washer 88 set in a groove at the end of the connecting carrier 60 and fastened by a nut or other fastening element 92.
  • the inner wall is provided in the plane of the shank portion 64 with a radially inwardly extending ledge 94 forming a flat annular shoulder on its upper surface and having a conical outwardly tapering face on its lower surface.
  • the ledge 94 defines an inner space or radial clearance therebe tween.
  • the annular shoulder ledge 94 has a flattened abutment surface which is located beneath the plane of the securing ring member 70, which at least in part is seen in FIGS. 3 and 4 engagingly overlies its surface.
  • the latch 70 and the ledge 94 interengage and cooperate to interlock the upper portion or whorl with the lower portion or bearing housing. They, of course, react in the same manner as the construction seen in FIGS. 1 and 2.
  • the securing latch holding the upper and lower sections together comprises a U-- shaped member, generally depicted by the numeral 100.
  • the outer dimension of the member is no larger than that of the shank of the carrier 60 and is inserted through its open bight within a circumferential groove 102 formed within the shank.
  • the groove 102 is defined at its bottom by a shoulder 104 formed by a cylindrical section 106 of the carrier and at its top by a radial flange 108.
  • the latch 100 is slideable within the groove and extends eccentric to one side of the cylindrical circumference of the shank portion 106 of the carrier 60.
  • the groove 102 is located just above the plane of the inwardly extending annular ledge 94 so that at least a portion of the latch 100 may be caused to lie over the ledge 94, thus, causing the upper section; i.e., whorl, and the lower section; i.e'., spindle bearing housing, to interlock so that the two can not be separated.
  • the latch 100 is U-shaped and is provided with a pair of lateral legs 110 and 112 connected by a cross-piece 114. This arrangement provides a resilient element allowing the lateral legs to be flexed spring-like with respect to the cross-piece.
  • Both lateral legs 110 and 112 have inner slide edge portions 116 and 116 which are parallel to each other and which have tip-like ends 118 and 118 respectively which are adapted to partially encircle the shank portion 106.
  • the shank portion 106 itself has a pair of parallel diametrically opposed flattened lands 120 and 120' on which the slide edge 116 and 116' respectively ride, and in the manner previously noted prevent the latch ring from rotation.
  • the inner edge 122 of the cross-piece 114 is curved to conform to the curvature of the shank 106 opposite to it.
  • the distance between the lips 118 and 118' and the inner edge 122 is greater than the diameter of the shank portion 106 so that a space 124 is defined between the inner edge 122 and the shank.
  • the leaf spring 126 is located in this space 124 and serves to bias the securing member toward the right (as seen in the drawings) maintaining the securing member 100 normally eccentric of the carrier 60.
  • the tips 118 and 118 at the ends of the legs 116 and 116' respectively limit the normal movement of the securing member 100 since they engage the surface of the shank 106.
  • the outer dimension; i.e., diameter, of the securing member 100 is choosen such that its out wall edge does not touch the wall of the whorl and that sufflcient radial clearance is allowed to permit free rotation of the whorl.
  • the leaf spring 126 is prestressed or tensioned to normally maintain the securing member 100 in operative postion over the flat abutment surface of the ledge 94.
  • the seucring member 100 is provided with cut-out portions 128 and 128' between the ends of the cross-piece 114 and the legs 116 and 116 respectively. These cut-out portions provide arches 130 and 130 in which the ends of the leaf spring 126 may seat and be retained. In this manner, the spring 126 may be maintained out of contact with the inner edges of the securing latch 100 and in particular, the spring 'allows the latch 100 to be accurately moved in the radial direction.
  • the whorl To disengage the whorl from the spindle, the whorl must frst be rotated so that the entrance opening 86 is aligned with the back of the cross-piece 114 of the securing member 100.
  • a pencil-like tool may then be inserted to radially move the latch 100 against the force of the spring 126 so that the inner shoulder or ledge 94 is freed from engagement with the securing member and the parts may be separated.
  • Assembly is similar to that obtained in the preceding embodiment, in that the conical surface permits the sections to be pressed together.
  • the latch 100 is retained within the groove 106. It is easily mounted therein or demounted if desired by moving it in a radial direction. This takes advantage of the resilient nature of the structure and the desired cooperation with the shank portion of the carrier on which it is mounted. The construction has the advantage of removing any imbalance from the whorl which might occur if the latch were mounted on the whorl itself.
  • Apparatus for spinning and twisting yarn comprising a housing having a throat at one end, a spindle journalled within said housing for rotation about its axis, said spindle extending outwardly of said throat, a whorl concentrically connected to said spindle for rotation therewith and extending at least in part about the throat of said housing, a coupling comprising a carrier mounted at one end within said throat and extending axially about said spindle within said whorl, said carrier and said whorl having means cooperating to interlock said whorl and carrier against axial movement, com prising a fixed member having an abutment surface extending transversely to and concentric with the axis of said spindle and a slidable securing latch resiliently biased to be normally eccentric to the axis of the spindle to selectively engage said abutment surface of said fixed member, including means for securing said latch against rotation relative to the axis of said whorl, said fixed member and said latch being axially
  • said carrier comprises an elongated shank secured at one end within the throat of said housing and having a radially outwardly directed flange at its other end, said flange forming an abutment surface on its lower face
  • said slideable securing latch comprises a ring mounted about said shaft below said abutment face, means connecting said ring to said whorl for conjoint rotation, said ring having an eccentric inner bore greater than the diameter of said flange permitting said ring under centrifugal action caused by the rotation of said whorl to slide beneath and engage at least a portion of said abutment surface and to be slideable so as to be aligned with said flange to permit axial separation.
  • said carrier comprises an elongated shank secured at one end to said housing, and is provided at its other end with means for receiving said slideable securing latch
  • said receiving means comprises a shank portion of reduced diameter about which said slideable securing member is located, said slideable securing member having an interior bore greater than the diameter of said reduced shank portion and an exterior dimension substantially equal'to said shank, the inner wall of the whorl being formed with a radially extending ledge forming an abutment surface on its upper face located beneath said slideable securing member and radially spaced from said shank portion, and means for resiliently urging said slideable securing member eccentric of said shank to abuttingly engage at least a portion of said ledge, and to be slideable into alignment with the shank portion to permit axial movement through said ledge.
  • cooperating means comprise cooperating flattened land surface on each of said reduce shank portion and said slideable member.
  • said slideable member comprises a ring, the inner bore of which is greater in dimension than the diameter of said reduced shank portion and includes spring means arranged within said bore and acting on said reduced shank portion and said reduced shank portion and said ring to bias said ring normally into engagement with said abutment surface.
  • said slideable securing member is U-shaped having a pair of lateral legs and a cross-piece resiliently secureable about said reduced shank portion, said reduced shank portion and said lateral legs having cooperating flattened land surface to prevent relative rotation, spring means located with said U-shapedmember between the reduced shank portion and saidcross-piecefor biasing said U-shaped member eccentric of said shank, and means at the end of each of said lateral legs to limit the extent of such bias.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00149291A 1970-06-03 1971-06-02 Spinning and twisting apparatus Expired - Lifetime US3742694A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19707020663 DE7020663U (de) 1970-06-03 1970-06-03 Spinn- oder zwirnspindel.
DE2122963A DE2122963C3 (de) 1970-06-03 1971-05-10 Spinn- oder Zwirnspindel

Publications (1)

Publication Number Publication Date
US3742694A true US3742694A (en) 1973-07-03

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ID=25761089

Family Applications (1)

Application Number Title Priority Date Filing Date
US00149291A Expired - Lifetime US3742694A (en) 1970-06-03 1971-06-02 Spinning and twisting apparatus

Country Status (6)

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US (1) US3742694A (de)
JP (1) JPS5323414B1 (de)
CH (1) CH519598A (de)
DE (1) DE2122963C3 (de)
FR (1) FR2094010B1 (de)
GB (1) GB1350091A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4982562A (en) * 1988-12-09 1991-01-08 Skf Textilmaschinen-Komponenten Gmbh Spinning and twisting device
US6321490B1 (en) 1997-10-01 2001-11-27 Gencorp Inc. Mechanically interlocked weatherstrip
US20100212280A1 (en) * 2007-06-15 2010-08-26 Mariella Crotti Spindle for winding yarns in winding tubes or tubular winding cores

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS604293U (ja) * 1983-06-20 1985-01-12 岡山シンコ−株式会社 織布と丸環の固着構造

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1383000A (en) * 1920-12-06 1921-06-28 Charles E Mcgill Spindle-retainer
US2883825A (en) * 1954-12-08 1959-04-28 Reissmuller Ernst Spinning or twisting spindle
DE1098864B (de) * 1959-04-03 1961-02-02 Spintex Spinnerei Maschb Stieh Spinn- oder Zwirnspindel mit gegen Abheben gesichertem Oberteil
US3028721A (en) * 1961-04-12 1962-04-10 Keyser Johann Jacob Spinning or twisting spindle
DE1128334B (de) * 1959-09-17 1962-04-19 Wuerttembergische Spindelfabri Laufteilsicherung fuer Spindeln von Spinn- und Zwirnmaschinen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1383000A (en) * 1920-12-06 1921-06-28 Charles E Mcgill Spindle-retainer
US2883825A (en) * 1954-12-08 1959-04-28 Reissmuller Ernst Spinning or twisting spindle
DE1098864B (de) * 1959-04-03 1961-02-02 Spintex Spinnerei Maschb Stieh Spinn- oder Zwirnspindel mit gegen Abheben gesichertem Oberteil
DE1128334B (de) * 1959-09-17 1962-04-19 Wuerttembergische Spindelfabri Laufteilsicherung fuer Spindeln von Spinn- und Zwirnmaschinen
US3028721A (en) * 1961-04-12 1962-04-10 Keyser Johann Jacob Spinning or twisting spindle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4982562A (en) * 1988-12-09 1991-01-08 Skf Textilmaschinen-Komponenten Gmbh Spinning and twisting device
US6321490B1 (en) 1997-10-01 2001-11-27 Gencorp Inc. Mechanically interlocked weatherstrip
US20100212280A1 (en) * 2007-06-15 2010-08-26 Mariella Crotti Spindle for winding yarns in winding tubes or tubular winding cores

Also Published As

Publication number Publication date
FR2094010A1 (de) 1972-02-04
DE2122963C3 (de) 1975-08-07
CH519598A (de) 1972-02-29
DE2122963B2 (de) 1975-01-02
DE2122963A1 (de) 1972-11-23
FR2094010B1 (de) 1975-06-06
GB1350091A (en) 1974-04-18
JPS5323414B1 (de) 1978-07-14

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