EP3368708A1 - Dispositif de séparation - Google Patents

Dispositif de séparation

Info

Publication number
EP3368708A1
EP3368708A1 EP16788239.8A EP16788239A EP3368708A1 EP 3368708 A1 EP3368708 A1 EP 3368708A1 EP 16788239 A EP16788239 A EP 16788239A EP 3368708 A1 EP3368708 A1 EP 3368708A1
Authority
EP
European Patent Office
Prior art keywords
spindle
separating device
clamping
separating
region
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.)
Granted
Application number
EP16788239.8A
Other languages
German (de)
English (en)
Other versions
EP3368708B1 (fr
Inventor
Robert Nägeli
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP3368708A1 publication Critical patent/EP3368708A1/fr
Application granted granted Critical
Publication of EP3368708B1 publication Critical patent/EP3368708B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
    • D01H9/16—Yarn-severing arrangements, e.g. for cutting transfer tails; Separating of roving in flyer

Definitions

  • the present invention relates to a spindle for a workstation of a textile machine, in particular a ring spinning machine, according to the independent claim.
  • the invention further relates to a separating device and a ring spinning machine with a plurality of jobs.
  • Ring spinning spindles with a separating device for separating a Abspinnfadens when pulling off a cop are well known, for example from EP 91 1 434 B1.
  • the separator is performed with a collar on the spindle top and with a nose that falls behind a groove in the spindle top, set on the spindle top.
  • this form of attachment requires a groove in the spindle top part, which are known to have only a few special spindles. For all other spindles you can not use this separator so.
  • EP0292856A1 shows an upper ring with a separation area and a flange.
  • This ring is disadvantageously attached to an upper end of the spindle base of the spindle, so that disengagement of the shaft unfavorably made difficult. A simple replacement of the cutting ring is not possible by the attachment. Due to the protruding teeth also the risk of injury to the operator is relatively large.
  • DE2215251A1 discloses a ring with teeth and a slot which is placed over a lower portion of a coil.
  • the disadvantage is that the ring is seated on the coil, ie that each coil must be equipped with it, which is a not inconsiderable cost factor.
  • there is a great risk of injury since the coils are changed frequently by the operator and the teeth can hurt him when touched.
  • EP0458088A1 relates to a thread separating device for a spindle of a spinning or twisting machine with an annular body which is seated between a sleeve receptacle of the spindle and a take-up point of the spindle for fixing a filament and which has a rim projecting from the spindle in the radial direction is provided with a plurality of acute angled inwardly extending notches whose edges are formed as cutting.
  • the attachment to the shaft is done unfavorably by a cover which is provided with internal locking lugs. Due to the protruding tines here also the risk of accidents should not be underestimated. Presentation of the invention
  • Object of the present invention is thus to provide a spindle with an associated separation device, wherein the separation device is as easy as possible to the shaft fastened.
  • the object is achieved by a spindle with a shaft and a separating device, a separating device and a ring spinning machine with a plurality of jobs, each having a spindle with a separating device, with the features of the independent claims.
  • the spindle for a job of a textile machine, in particular a ring spinning machine.
  • the spindle has a shaft for receiving a sleeve.
  • a thread is wound, so that the sleeve becomes a cop.
  • the spindle has a separator. This separates the thread when removing the cop from the spindle so that the cop can be removed freely and the thread remaining on the textile machine can be wound onto a new sleeve.
  • the separating device has a recess for enclosing the shaft, so that it can come to rest around the shaft. An inner area adjoins this recess. Furthermore, the separation device has a separation area at which the thread is finally separated.
  • the spindle has a spindle base adjacent to the shaft, the separating device is separated from the spindle base, that is to say an independent element, and the inner region of the separating device has at least one clamping region. With this clamping area, the separating device is clamped on the shaft. By clamping the separator is firmly attached to the shaft of the spindle.
  • the spindle does not need to have any special fixture (s) because it can be clamped to a conventional shank.
  • the clamping it is also easily possible to exchange the separating device, for example if it has become dull.
  • the at least one clamping region is circular.
  • the diameter of the circular clamping region is less than or equal to a diameter of the shaft at a lower end of the
  • the at least one clamping region is also possible. Then it is advantageous if the diameter of a circle inscribed in the at least one clamping region, ie the largest circle which fits into the recess, is smaller than or equal to the diameter of the lower end of the shaft. As a result, a strong clamping can be ensured.
  • the separating device has a slot.
  • one end of the slot is arranged on the recess.
  • the separating device can advantageously have a specially designed inner area which has three separate clamping areas. The clamping with these three clamping areas is very effective. It can be dispensed with the attachment of a slot or used in addition. Furthermore, it is advantageous if the separation region has a circular edge, teeth and / or projections.
  • the special configuration of the separation region can be adapted to the further features of the spindle, for example the geometry of a clamping crown, but also to the properties of the thread to be used.
  • the separating device can advantageously be made flat and rest on the spindle base. This is a particularly advantageous because it is a space-saving design variant. It is advantageous if the circular edge, the teeth and / or projections are at least partially sharp. By sharp elements, the thread can namely be separated even easier.
  • the separating device is formed in one piece. On the one hand this allows a favorable production of the separation device, on the other hand it makes it more robust.
  • the separator is made of metal. This can be easily sanded, but also brings with it the necessary elasticity for the clamping.
  • the separation region has an outer diameter which is smaller than or equal to a diameter of the spindle base.
  • the separation area is behind the spindle base and the risk of injury to operating personnel, for example by cutting on sharp elements, is significantly reduced.
  • the spindle base has notches. Then it is advantageous if the outer diameter of the separation area is greater than or equal to an inner diameter formed by the reasons of the notches. Thus, the thread can come into contact with the separation area and be separated.
  • the spindle base is a clamping crown. Shortly before the cop is to be removed, a few turns of the thread are wound onto the clamping crown and fixed there. If the cop is then removed from the spindle men, the thread runs over the separation area and is severed.
  • the separating device can also be clamped to this clamping crown.
  • a separating device for separating a thread when removing a cop from a spindle described above is proposed.
  • the spindle has a shaft and the separating device comprises a recess for enclosing the spindle or the shaft, an inner region adjacent to this recess and a separating region.
  • the inner region has at least one clamping region for clamping the separating device on the spindle or on
  • this at least one clamping region is circular. Since a circular clamping area clamps on the entire circumference of the spindle, a particularly strong attachment of the separating device to the spindle or to the shaft is possible.
  • the separating device has a slot, whose one end is arranged on the recess. Through the slot, a larger deformation of the separator is made possible, which in turn allows a better clamping.
  • the slot has at least one corner.
  • the thread In rare cases, it is possible for the thread to be pulled along a continuous straight slot to the shaft of the spindle, where it can be difficult to remove.
  • the thread As a result of the at least one corner in the slot, the thread usually remains hanging at the first corner and can not penetrate to the shaft, so it can be removed more easily in the following, or it can be removed by centrifugal force on its own.
  • the separation device may advantageously have a specially designed interior area, which has three separate clamping areas. Also the clamping with these Three clamping areas is very effective. It can be dispensed with the attachment of a slot or used in addition.
  • the separation area has a circular edge, points and / or projections.
  • some forms of separation areas are better than others for separating the thread.
  • the circular edge, the teeth and / or projections are at least partially sharp. By sharp elements, the thread can namely be separated even easier.
  • the separating device is formed in one piece. On the one hand this allows a favorable production of the separation device, on the other hand it makes it more robust.
  • the separator is made of metal. This can be easily sanded, but also brings with it the necessary elasticity for the clamping. It is also advantageous if the separating device is produced by stamping, since this is feasible at low cost and with the required accuracy.
  • a ring spinning machine is proposed with a plurality of jobs.
  • Each workstation has a spindle with a separating device for separating a thread when pulling off a cop from the spindle.
  • the spindle is formed as described above.
  • One of the spindle associated separator can be easily mounted on the spindle and also easily replaced if it is dull or another, tuned to another thread, separator is to be used.
  • Fig. 1 is a side view of a spindle
  • FIG. 2a is a side view of a clamping crown in the open state
  • FIG. 2b shows a side view of the clamping crown from FIG. 2a in the closed state
  • 3a shows a plan view of a separating device
  • FIG. 3b shows a plan view of a separating device from FIG. 3a on the clamping rim
  • FIG. 4a shows a plan view of a further embodiment of a separating device
  • Fig. 4b is a plan view of another embodiment of a separation device. represent. Only features important to the invention are shown. Identical features are referred to the same in different figures.
  • a separating device 5 is a cutting device, a cutting blade or the like, as described in the following embodiments.
  • FIG. 2 a shows the clamping crown 4 in more detail, in the open state, as it is present shortly before the cop 3 is removed from the spindle 1.
  • a clamping sleeve 6 was pulled down, so that an underwinding area 7 is open.
  • the thread runs through notches in a clamping collar 8 and also via the separating device 5.
  • FIG. 3a shows a plan view of the flat separating device 5 on the clamping collar 8.
  • the diameter of a separation region 10 of the flat designed separator 5 is smaller than the outer diameter of the clamping collar 8, which is for safety reasons for the operator of advantage.
  • the separation area 10 is a peripheral sharp edge or the like, so that a cutting blade is formed.
  • the separating device 5 protrudes beyond the notches 9 of the clamping collar 8, so that a thread located in a notch 9 can be separated.
  • FIG. 3b shows a top view of the separating device 5.
  • the separating region 10 is sharpened here in order to allow a better separation of the thread.
  • the recess 1 1, which is bounded by the inner region 12 of the separator 5, is here designed circular, with a diameter which is slightly smaller than a diameter of the shank at the lower end of the shank. In this case, the inner portion 12 is equal to the clamping portion 13.
  • the separating device 5 bends easily when pushed onto the shaft, and clamps the separator 5 firmly on the shaft.
  • FIG. 4a shows a top view of a further embodiment of a separating device 15.
  • the same reference numerals are used for features that are identical and / or at least comparable in their design and / or mode of action compared to the first exemplary embodiment illustrated in FIG. 3b , Unless these are explained in detail again, their design and / or mode of action corresponds to the design and mode of action of the features already described above.
  • this separator 15 differs in the design of the separation region 16.
  • a plurality of sharpened prongs 17 is provided which can reliably separate the thread.
  • the slot 18 has two corners 19. If the thread is pulled into the slot, it will stick to the corners 19 and effectively prevent the thread from reaching the shank of the spindle.
  • FIG. 4b shows a top view of a further exemplary embodiment of a separating device 20.
  • features that are identical and / or at least comparable in their design and / or mode of action to the first embodiment shown in FIG. 3b are the same Reference numeral used. Unless these are explained in detail again, their design and / or mode of action corresponds to the design and mode of action of the features already described above.
  • projections 22 are provided for the separation area 21, which are sharpened at their sides 23.
  • Such projections 22 are particularly suitable for the separation of threads, if, after the cop has been slightly lifted off the spindle, the spindle is again rotated briefly. Then the thread is pulled past a sharpened side 23 and severed.
  • the separating device 20 has a specially designed inner region 24 which has three separate clamping regions 25.
  • the clamping with these three clamping portions 25 is very effective and it can be dispensed with the attachment of a slot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

La présente invention concerne une broche (1) destinée à un poste de travail d'une machine textile, notamment d'un continu à filer à anneaux, présentant une tige (2) destinée à prendre en charge un bobinot qui se transforme en bobine (3) par enroulement d'un fil, et un dispositif de séparation (5, 15, 20) pour séparer le fil pour retirer la bobine (3) de la broche (1), le dispositif de séparation (5, 15, 20) présentant un évidement (11) destiné à entourer la tige (2), une zone intérieure (12, 24) adjacente à l'évidement (11) et une zone de séparation (10, 16, 21). Selon l'invention, la zone intérieure (12, 24) du dispositif de séparation (5, 15, 20) présente au moins une zone de serrage (13, 25) pour enserrer le dispositif de séparation (5, 15, 20) autour de la tige (2). L'invention concerne par ailleurs un dispositif de séparation (5, 15, 20) pour séparer un fil lorsqu'une bobine (3) est retirée d'une broche (1).
EP16788239.8A 2015-10-28 2016-10-13 Arbre avec dispositif de séparation Active EP3368708B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01571/15A CH711691A1 (de) 2015-10-28 2015-10-28 Spindel für eine Arbeitsstelle einer Textilmaschine mit einer Trennvorrichtung.
PCT/IB2016/056124 WO2017072619A1 (fr) 2015-10-28 2016-10-13 Dispositif de séparation

Publications (2)

Publication Number Publication Date
EP3368708A1 true EP3368708A1 (fr) 2018-09-05
EP3368708B1 EP3368708B1 (fr) 2022-01-12

Family

ID=57209661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16788239.8A Active EP3368708B1 (fr) 2015-10-28 2016-10-13 Arbre avec dispositif de séparation

Country Status (4)

Country Link
EP (1) EP3368708B1 (fr)
CN (1) CN108138386B (fr)
CH (1) CH711691A1 (fr)
WO (1) WO2017072619A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017103754A1 (de) 2017-02-23 2018-08-23 Maschinenfabrik Rieter Ag Klemmvorrichtung, Spindel mit einer Klemmvorrichtung und Verfahren zum Herstellen einer Klemmvorrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221782Y2 (fr) * 1971-03-29 1977-05-19
US4796422A (en) * 1987-05-26 1989-01-10 Odawara Industry Co., Ltd. Apparatus for treating tail yarn in textile spindle assembly
DE4015707A1 (de) * 1990-05-16 1991-11-21 Zinser Textilmaschinen Gmbh Fadentrenneinrichtung fuer eine spindel einer spinn- oder zwirnmaschine
DE4117704C2 (de) * 1991-05-30 1995-05-18 Zinser Textilmaschinen Gmbh Abreißvorrichtung zum Abreißen von Garnen oder Zwirnen an einer Spinn- oder Zwirnmaschine
DE4436790C2 (de) * 1994-10-14 1999-07-29 Rieter Ag Maschf Spinnstelle
DE19746536C2 (de) 1997-10-22 2002-08-01 Zinser Textilmaschinen Gmbh Ringspinnspindel mit einem Trennmesser

Also Published As

Publication number Publication date
CN108138386A (zh) 2018-06-08
CN108138386B (zh) 2022-07-19
WO2017072619A1 (fr) 2017-05-04
EP3368708B1 (fr) 2022-01-12
CH711691A1 (de) 2017-04-28

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