EP0795634A2 - Broche pour fabriquer un fil - Google Patents

Broche pour fabriquer un fil Download PDF

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Publication number
EP0795634A2
EP0795634A2 EP97101167A EP97101167A EP0795634A2 EP 0795634 A2 EP0795634 A2 EP 0795634A2 EP 97101167 A EP97101167 A EP 97101167A EP 97101167 A EP97101167 A EP 97101167A EP 0795634 A2 EP0795634 A2 EP 0795634A2
Authority
EP
European Patent Office
Prior art keywords
thread
spindle
steel tube
deflector
spindle according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97101167A
Other languages
German (de)
English (en)
Other versions
EP0795634A3 (fr
Inventor
Harald Meisel
Johann Egbers
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.)
INA Waelzlager Schaeffler OHG
Original Assignee
INA Waelzlager Schaeffler OHG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by INA Waelzlager Schaeffler OHG filed Critical INA Waelzlager Schaeffler OHG
Publication of EP0795634A2 publication Critical patent/EP0795634A2/fr
Publication of EP0795634A3 publication Critical patent/EP0795634A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • D01H7/88—Hollow-spindle arrangements

Definitions

  • the present invention relates to a spindle for producing a thread, with a spindle shaft rotatably mounted relative to a housing by means of a roller bearing, with a thread deflector whose thread guide channel comprises an axial thread input concentric with the spindle axis and an at least approximately radially directed thread output, an air guide channel opening into the thread output .
  • a spindle is known, for example, from the "Two for one, VTS-08 / -09" brochure from Volkmann in Krefeld.
  • the spindle is made of solid round material, the formation of the thread guide channel requiring machining.
  • Such twisting spindles have on the one hand a high weight and on the other hand are also costly because of the complex machining.
  • the object of the present invention is therefore to create a spindle which on the one hand has a lower weight and in which the manufacture of the thread guide channel is simplified.
  • this object is achieved in that the spindle shaft is formed by a steel tube with essentially smooth cylindrical jacket surfaces, the plastic in particular in Injection molding thread deflector is arranged in the steel tube.
  • the heavy steel components are considerably reduced in weight. Cost-intensive machining steps are largely reduced because only a prefabricated steel tube is required, into which the thread deflector is inserted axially.
  • the thread deflector preferably has an essentially cylindrical shape and lies against the inner circumferential surface of the steel tube.
  • the invention can be used in a favorable manner, for example in the case of twisting spindles.
  • the ratio of the outer diameter to the wall thickness of the steel tube is preferably greater than 4 for reasons of a possibly provided non-cutting machining and for reasons of weight reduction, but in any case the steel tube is thin-walled.
  • an air duct which has a section produced by means of a deep hole.
  • Such deep hole bores have a low roughness depth on the bore wall, a small roundness deviation, a small straightness deviation and a small cylinder shape deviation and are therefore very expensive to produce.
  • these deep-hole bores can be dispensed with if the thread deflector with its integrally molded sealing lip lies against the inner circumferential surface of the steel tube; this sealing lip seals the tube regions adjoining the thread deflector axially on both sides against one another.
  • the air can be introduced in a simple manner at the end into the steel tube and finally into the short air duct of the thread deflector.
  • a corresponding positioning of the thread deflector in the steel tube must be ensured.
  • This positioning can be achieved in a particularly favorable manner in that the steel tube with non-cutting embossed, provided from its inner surface radially inward protruding noses which engage in pockets of the thread deflector. If the thread deflector is inserted axially into the steel tube, a correct position of the thread deflector in the circumferential directions can expediently be achieved by two circumferentially adjacent lugs delimiting a groove parallel to the spindle axis, two circumferentially adjacent pockets delimiting a tongue parallel to the groove, which engages in the groove.
  • the correct positioning of the thread deflector can also be achieved in that a locking pin received in a transverse bore of the steel tube and attached to the steel tube positively engages in a recess of the thread deflector, the recess extending up to one of the end faces of the thread deflector.
  • the extension of the recess up to one end also enables the thread deflector to be inserted axially into the steel tube.
  • the steel tube be provided with ball grooves on its outer lateral surface.
  • the ball grooves can be machined or machined.
  • the thread deflector is formed from at least two plastic parts, the parting plane of which is arranged essentially parallel to the spindle axis, the plastic parts each having a longitudinally separated section of the thread guide channel. It is particularly favorable, for example, to form the thread deflector from two plastic parts, the parting plane of which coincides with the spindle axis. In this case it makes sense that the parting plane also coincides with the plane of symmetry of the thread guide channel. With such a separation of the plastic parts, the thread guide channel can be provided on the injection molding tool symmetrically to the parting plane.
  • a receptacle for a ceramic part can be provided on both plastic parts; this ceramic part serves as a deflection section for the thread, the ceramic part being provided between the thread outlet and the thread inlet.
  • the ceramic part is inserted into the receptacles provided.
  • the axial thread inlet is formed on a slim, hollow cylindrical guide section of the thread deflector, this hollow cylindrical guide section being formed in one piece on one of the two plastic parts.
  • the one-piece production of the hollow cylindrical guide section ensures that there are no seams on the inner circumferential surface where the thread can be damaged under certain circumstances.
  • the spindle mentioned at the outset is provided with an air guide channel, which has an axial air inlet concentrically arranged with the spindle axis, with an adjoining central section which initially leads away from the spindle axis and then intersects the spindle axis and with an adjoining the central section, at least approximately parallel to the thread outlet arranged nozzle channel is provided, which opens into the thread outlet.
  • the plastic parts each have a longitudinally separated section of the air duct.
  • the longitudinally separated sections of the air duct can be provided on the injection molding tool even in the case of complicated shaping.
  • the invention is advantageously characterized in that two axially adjacent thread guide channels are provided in the thread deflector, the two thread outputs being arranged radially and the two thread inputs axially opposite one another.
  • a guide tube for a thread is arranged in the interior of the steel tube and concentrically therewith, the guide tube then one thread entrance is axially adjacent. The thread can be guided perfectly in this guide tube.
  • the guide tube is supported radially with respect to the steel tube, preferably by means of at least one support disk, which bears with its outer circumference on the steel tube and with its inner circumference against the guide tube.
  • the guide tube can be supported on the one hand at the thread exit and on the other hand on the one support disk. But it is also possible to make two axially spaced support disks on which the guide tube is supported at the end. In such an embodiment, the guide tube is not connected to the thread deflector or the thread input, wherein an axial distance between the guide tube and the thread input can optionally be provided.
  • the thread deflector is exposed to axial shocks. So that the thread deflector maintains its intended axial position in any case, it is proposed that the thread deflector comprise a radial flange which is axially supported on a circumferential contact surface of the steel tube.
  • Figure 1 shows a longitudinal section of a spindle according to the invention.
  • the spindle has a steel tube 1, which is rotatably mounted by means of a ball bearing 2 relative to a housing 3, which is only indicated here.
  • a thread deflector 4 which is made of plastic by injection molding, is axially inserted into the steel tube 1.
  • the thread deflector 4 is made in two parts, the parting plane coinciding with the cutting line or the spindle axis.
  • the thread deflector 4 has a thread guide channel 5 which is provided with an axial thread input 6 which is cut concentrically with the spindle axis and which is formed on a slim, hollow cylindrical guide section 6a.
  • the thread deflector 4 further comprises a radial thread outlet 7.
  • the thread deflector 4 is provided with an axial air inlet 10 which is arranged concentrically to the spindle axis, with an adjoining central section 11 which initially leads away from the spindle axis and then intersects the spindle axis, and with a nozzle duct which adjoins the central section 11 and is arranged at least approximately parallel to the thread outlet 7 12 provided, which opens into the thread exit 7.
  • the essentially smooth cylindrical steel tube 1 has a ratio of the outside diameter to the wall thickness that is greater than 4.
  • the steel tube 1 is provided with non-cutting embossed lugs 13 which protrude radially inward from its inner lateral surface and which engage in pockets 14 of the thread deflector 4.
  • the ball bearing 2 has balls 15, which roll on ball grooves 16 produced on the steel pipe 1 without cutting and on ball grooves 17 of a pipe section 18, the pipe section 18 being fastened to the housing 3.
  • the thread deflector 4 is formed from two plastic parts, the parting plane of which coincides with the spindle axis, the plastic parts each having a longitudinally separated section of the threading duct 5 and the air ducting 9, the parting plane also coinciding with the plane of symmetry of the air ducting 9 and the threading duct 5.
  • Figure 2 shows a view of the parting plane of one of the two plastic parts 19, wherein the hollow cylindrical guide section 6a is fully formed on this plastic part and therefore has no seams on its inner lateral surface.
  • a receptacle 20 for the deflecting section 8 is clearly recognizable.
  • the plastic part 19 has a sealing lip 21 on its cylindrical outer surface, which, however, is better shown in FIG.
  • the other half of the sealing lip 21 is provided on the plastic part shown and described below. It can be seen from the illustration according to FIG. 3 that pockets 14 which are adjacent to one another in the circumferential direction delimit a web 22 which is required for positioning or for inserting the thread deflector 4 into the steel tube 1, which is described in more detail below.
  • FIG. 4 shows an end view of the plastic part 19, with pins 23 protruding from the parting plane. These pins 23 engage in corresponding bores in the other plastic part.
  • FIG. 5 shows a view of the parting plane of the other plastic part 24, in particular the thread guide channel 5, the air guide channel 9, the sealing lip 21, the receptacle 20 for the deflection section 8 and the bores 25 corresponding to the pins 23.
  • FIG. 6 shows in longitudinal section as a single part the steel tube 1, which has a transverse bore 26 corresponding to the thread exit 7.
  • the noses 13 are better shown in an enlarged detail in FIGS. 7 to 9.
  • the lugs 13 are formed by radially displacing the tube wall by a partial amount of the wall thickness.
  • two circumferentially adjacent lugs 13 delimit a groove 27 parallel to the spindle axis, the web 22 of the thread deflector 4 engaging in the groove 27; during its insertion into the steel tube 1, the intended position of the thread deflector 4 in the circumferential direction is ensured by this tongue and groove connection.
  • the groove 27 is shown particularly clearly in FIG. 9. As soon as the intended position is reached in the axial direction, the lugs 13 of the steel tube 1 engage positively in the pockets 14 of the thread deflector.
  • FIG. 10 A further spindle according to the invention is shown in FIG. 10, which differs from the spindle described above essentially in that the hollow cylindrical guide section 6a is omitted, so that the thread inlet 6 of the thread deflector 4 directly adjoins the deflection section 8. Furthermore, the sealing lip 21 is omitted.
  • the positioning of the thread deflector 4 with respect to the steel tube 1 is ensured in that a locking pin 29 is received in a transverse bore 28 of the steel tube 1 and engages in a recess 30 in the thread deflector 4 in a form-fitting manner Recess 30 extends to the end face of the thread deflector 4.
  • the thread deflector 4 is further provided with a radial flange 31 which is axially supported on a circumferential contact surface 32 of the steel tube 1.
  • FIG 11 shows a Cablierspindel in longitudinal section.
  • This cabling spindle differs from the previously described exemplary embodiments essentially in that a further thread guide channel 33 is provided instead of an air guide channel.
  • This thread guide channel 33 is also provided with a thread inlet 34 coaxial with the spindle axis, a deflection section 35, in particular made of ceramic, and with a radial thread outlet 36.
  • their thread inputs 6, 34 are arranged axially and their thread outputs 7, 36 are arranged radially opposite one another.
  • the thread guide tube 37 is supported on a support disk 40, the support disk resting with its outer circumference on the steel tube 1 and with its inner circumference on the guide tube 37.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Looms (AREA)
EP97101167A 1996-03-16 1997-01-25 Broche pour fabriquer un fil Withdrawn EP0795634A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19610460 1996-03-16
DE1996110460 DE19610460A1 (de) 1996-03-16 1996-03-16 Spindel zum Herstellen eines Fadens

Publications (2)

Publication Number Publication Date
EP0795634A2 true EP0795634A2 (fr) 1997-09-17
EP0795634A3 EP0795634A3 (fr) 1998-01-07

Family

ID=7788548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97101167A Withdrawn EP0795634A3 (fr) 1996-03-16 1997-01-25 Broche pour fabriquer un fil

Country Status (2)

Country Link
EP (1) EP0795634A3 (fr)
DE (1) DE19610460A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007147468A1 (fr) * 2006-06-24 2007-12-27 Oerlikon Textile Gmbh & Co. Kg Broche de métier à retordre à double torsion comportant un dispositif d'enfilage actionné par air comprimé

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018115601A1 (de) * 2018-06-28 2020-01-02 Saurer Spinning Solutions Gmbh & Co. Kg Fadenumlenkeinheit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB696067A (en) * 1949-06-09 1953-08-26 Louis Sabaton Improvements in double twist spindle devices
DE2264804A1 (de) * 1972-09-20 1975-06-12 Hamel Gmbh Zwirnmaschinen Doppeldrahtzwirnspindel mit unterschiedlichen fadenspeicherscheibendurchmessern
DE4216283A1 (de) * 1992-05-16 1993-11-18 Hamel Ag Arbon Mehrfachdraht-Zwirnspindel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1685941B1 (de) * 1967-06-16 1971-10-07 Palitex Project Co Gmbh Spindelrotor einer Mehrfachdrahtzwirnspindel
DE4307685C1 (de) * 1993-03-11 1994-11-17 Hamel Ag Verfahren zum Aufbau einer Fadenreserve an einem rotierenden Ballonbegrenzer einer Mehrfachdraht-Zwirnspindel und Mehrfachdraht-Zwirnspindel mit rotierendem Ballonbegrenzer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB696067A (en) * 1949-06-09 1953-08-26 Louis Sabaton Improvements in double twist spindle devices
DE2264804A1 (de) * 1972-09-20 1975-06-12 Hamel Gmbh Zwirnmaschinen Doppeldrahtzwirnspindel mit unterschiedlichen fadenspeicherscheibendurchmessern
DE4216283A1 (de) * 1992-05-16 1993-11-18 Hamel Ag Arbon Mehrfachdraht-Zwirnspindel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007147468A1 (fr) * 2006-06-24 2007-12-27 Oerlikon Textile Gmbh & Co. Kg Broche de métier à retordre à double torsion comportant un dispositif d'enfilage actionné par air comprimé
CN101473077B (zh) * 2006-06-24 2010-08-18 欧瑞康纺织有限及两合公司 具有气动致动的穿纱装置的倍捻锭子
US7908839B2 (en) 2006-06-24 2011-03-22 Oerlikon Textile Gmbh & Co. Kg Two-for-one twisting spindle having a pneumatically actuated threading device

Also Published As

Publication number Publication date
EP0795634A3 (fr) 1998-01-07
DE19610460A1 (de) 1997-09-18

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