WO2021104958A1 - Spannfutter - Google Patents
Spannfutter Download PDFInfo
- Publication number
- WO2021104958A1 WO2021104958A1 PCT/EP2020/082500 EP2020082500W WO2021104958A1 WO 2021104958 A1 WO2021104958 A1 WO 2021104958A1 EP 2020082500 W EP2020082500 W EP 2020082500W WO 2021104958 A1 WO2021104958 A1 WO 2021104958A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- clamping
- sealing
- compressed air
- hollow chamber
- clamping bush
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/24—Constructional details adjustable in configuration, e.g. expansible
- B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
- B65H75/243—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages actuated by use of a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/24—Constructional details adjustable in configuration, e.g. expansible
- B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
- B65H75/248—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction
- B65H75/2484—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction movable actuator including wedge-like or lobed member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
- B23B31/404—Gripping the work or tool by jaws moving radially controlled by conical surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- the invention relates to a chuck of a winding machine for receiving and fixing bobbin tubes for winding threads into bobbins according to the preamble of claim 1.
- a generic chuck of a winding machine is known, for example, from DE 19607916 A1.
- Such chucks are used in winding machines for winding preferably freshly spun synthetic threads into bobbins.
- several bobbin tubes are placed one behind the other on the chuck arranged in a cantilever manner in the winding machine.
- the chuck has a clamping device which has several clamping elements that can be guided radially outward.
- the clamping device is integrated on a clamping bush which is held on an axle support, the axle support protruding into the clamping bush.
- the clamping bush is also driven and is held at a distance from the axle support, so that a circumferential annular chamber is created between the axle support and the clamping bush.
- the clamping device formed on the clamping bushing has a plurality of clamping elements which are arranged between a spring and a pressure chamber for tensioning and releasing.
- the pressure chambers can be connected together with a compressed air source via the annular chamber.
- a Mantelöff opening is formed between tween a collar of the axle carrier and a front end of the clamping bushing, which is connected to the annular chamber inside the chuck and which can be optionally closed by a sealant.
- a sealing piston is slidably guided on the axle carrier in order to be pressed with a seal against an end face of the clamping bushing.
- the Klemmein direction is operated without pressure, so that the clamping elements are held in a radia le outer position under the action of the spring and fix the Spulhül sen attached to the circumference of the clamping sleeve.
- the jacket opening at the front end of the clamping bushing is open and the annular chamber between the clamping bushing and the axle support is connected to the environment for venting all pressure spaces.
- a compressed air supply is activated Sealing piston closes the jacket opening between the axle support and the clamping bushing in order to guide the compressed air flowing into the annular space between the axle support and the clamping bushing into the pressure chambers of the clamping device.
- a pneumatic force opposite to the springs is generated on the clamping elements, which causes an adjustment of the clamping elements, so that the clamping elements release the bobbin tubes on the circumference of the clamping bushing. This process is repeated every time the bobbin is changed.
- the sealing piston In order to move the sealing piston on the axle support to close the jacket opening, compressed air is passed into an annular space of the sealing piston.
- the sealing piston has additional seals in order to allow a pressure build-up to move the sealing piston.
- the sealing of the jacket opening at the front end of the clamping bush is therefore essentially dependent on the function of the sealing piston.
- the resetting of the sealing piston is generated by a spring element that does not move the sealing piston back in the event of a break.
- sealing means is formed by an elastic hollow chamber seal which can be inflated by means of compressed air.
- the invention has the particular advantage that there are no movable and axially displaceable parts for sealing the jacket opening on the axle support.
- a stationary elastic hollow chamber seal is used, which can be inflated for the purpose of sealing by compressed air.
- the annular hollow chamber seal has a compressed air connection in a bottom area, which cooperates with an inlet bore in the axle carrier.
- the compressed air can be supplied directly via an inlet hole in the axle carrier.
- the inlet bore is connected to an air supply channel in the axle carrier, through which the Ringkam mer is connected to the compressed air source.
- a common compressed air connection can be used for a compressed air source, which is used to relax the clamping elements and to inflate the seal. Separate pressure connections are therefore not required.
- the development of the invention is provided in which the hollow chamber sealing device is arranged in a circumferential groove on the circumference of the axle carrier opposite to the jacket of the clamping bushing. In this way, a radially acting seal of the jacket opening can be implemented directly on the circumference of the axle support.
- the clamping bush is centered on the axle carrier when the jacket opening is sealed by the hollow chamber seal.
- a first variant of the hollow chamber seal has a roll-out sealing profile through which a sealing gap of> 3mm can be closed. This enables relatively large Dichtungspal te to be bridged.
- the variants can also be used in which the hollow chamber sealing device is formed by an expandable sealing profile through which a sealing gap of ⁇ 3mm can be closed.
- the sealing profile is implemented essentially exclusively by expanding the contour by means of the compressed air.
- the sealing effect can be improved by the development of the invention in that the hollow chamber seal has at least one outer sealing lip on a sealing profile.
- a plurality of sealing lips are preferably used in order to obtain the lowest possible pressure losses when the clamping device is relieved.
- Fig. 1 schematically shows a longitudinal section of an embodiment of the chuck according to the invention
- FIG. 2 schematically shows an enlarged view of the sealing means of thewhosbei game from Fig. 1 in an open position
- FIG. 3 schematically shows an enlarged representation of the sealing means of the principalsbei game from Fig. 1 in a closed position
- Fig.4 schematically shows an enlarged representation of a sealing means of a further exemplary embodiment
- Fig. 1 is a schematic longitudinal section through an embodiment of the fiction, contemporary chuck is shown as it is used, for example, in a winding machine for receiving a plurality of bobbin tubes and for winding threads.
- the chuck has a drive shaft 3 which is rotatably mounted within a hollow cylindrical axle carrier 2 by several bearings 4 re.
- the drive shaft 3 is coupled to an electric drive at an end not shown here.
- the drive shaft 3 is non-rotatably connected via a hub 15 to a hollow cylindrical clamping bush 1.
- the cantilevered portion of the axle carrier 2 protrudes to support the drive shaft 3 in an open end of the clamping bush 1 into it.
- a clamping device 5 is arranged on the circumference of the clamping bushing 1 and has an outer clamping sleeve 7 and a plurality of clamping elements 6 arranged between the clamping bushing 1 and the clamping sleeve 7.
- the clamping elements 6 are each formed by a radially displaceable clamping block 10 and an axially displaceable piston 8, on which the clamping block 10 is guided over a wedge-shaped guide surface.
- the terminal block 10 protrudes into an opening 11 of the outer clamping sleeve 7, the piston 8 has several incisions 38 distributed around the circumference for receiving several terminal blocks 10.
- the piston 8 is supported via the spring 9 on a stop 17 that is fixedly connected to the clamping bush 1.
- the clamping elements 6 are shown in a clamping position in which the clamping blocks 10 are held in an extended clamping position by the pistons 8 by means of the springs 9.
- a pressure medium preferably compressed air, is applied to the piston 8 on the side opposite the spring 9 via the pressure chamber 12, so that the piston 8 is displaced against the spring 9 in the direction of the stop 17.
- the wedge-shaped guide surface moves so that the terminal block 10 can move radially inward.
- the piston 8 has several seals on the pressure side, each of which creates a seal between the piston 8 and the clamping sleeve 1 and between the piston 8 and the clamping sleeve 7.
- the clamping element 6, which is adjacent in the longitudinal direction of the clamping bush 1, is constructed identically, with the end faces of the pistons 8 acted upon by pressure facing each other at a distance and delimiting the pressure chamber 12.
- a winding tube 32 can thus be tensioned by two adjacent clamping elements 6.
- the pressure chamber 12 is connected via a passage 13 in a jacket 31 of the clamping bushing with the annular chamber 14 formed between the clamping bushing 1 and the axle carrier 2.
- the clamping device 5 has a plurality of clamping elements 6, each of which is of identical design and in which a respective pressure chamber 12 is connected via a passage 13 to the pressure chamber Moder a pressure chamber 35 in the front part of the clamping bush 1.
- the annular chamber 14 is connected to an air supply channel 34 in the axle carrier 2 via several channels 33 on the circumference of the axle carrier 2.
- the air supply duct 34 can be implemented, for example, through a bore in the axle support 2.
- the air supply channel 34 is connected to a controllable compressed air source 39 (FIG. 2).
- a cover 16 is firmly held on the clamping bush 1.
- the cover 16 is dimensioned such that a pressure space 35 formed at the end within the clamping bush 1 is closed by the cover 16.
- the clamping bush 1 has a free end 19 which is designed in the shape of a collar and forms a sealing surface 20 on the outer side.
- a jacket opening 18 is formed between the front end 19 of the clamping bush 1 and the axle support 2, which has a collar 28 opposite the front end 19.
- the jacket opening 18 connects the annular chamber with the environment in order to vent the pressure chamber 12.
- the jacket opening 18 is assigned to a sealing means 21 on the collar 28 of the axle carrier 2, through which the jacket opening 18 is optionally kept open or closed.
- a circumferential circumferential groove 25 is formed on an end wall 27 of the collar 28 of the axle carrier 2.
- a hollow chamber seal 22 is arranged in the circumferential groove 25.
- the hollow chamber seal 22 has a compressed air connection 23 in the groove base of the circumferential groove 25.
- the compressed air connection 23 is connected to the air supply duct 34 in the interior of the axle carrier 2 via an inlet bore 26.
- the hollow chamber seal 22 lies opposite the sealing surface 20 at the front end 19 of the clamping bush 1.
- the hollow chamber seal 22 has a sealing profile 24 that can be rolled out.
- the sealing profile 24 is ring-shaped and can be rolled out by means of compressed air supplied through the compressed air connection 23.
- the hollow chamber seal 22 is depressurized in the idle state.
- several bobbin tubes are usually stretched around the circumference of the chuck in order to wind several threads in parallel on the tension sleeves to form bobbins.
- the jacket opening 18 between the axle support 2 and the clamping bush 1 is open, so that the pressure spaces 12 are vented.
- the clamping elements 6 of the clamping device 5 are held in the clamping positions by means of spring force.
- FIG. 3 shows the detail from FIG. 2 only in a changed operating situation. In this respect, the description of FIG. 2 also applies to FIG. 3.
- the structural design of the chuck is exemplary.
- the axle carrier 2 can be made in one piece or by means of multi-part components.
- the collar 28 can be formed here by a separate component.
- the illustrated clamping elements 6 are also exemplary. What is essential here is that compressed air supplied via the annular chamber is required for relaxation.
- a ra dialer sealing gap between the front end 19 and the opposite hollow chamber you device 22 is axially sealed in the jacket opening 18.
- the Hohlkam merdichtung 22 directly on the circumference of the axle carrier 2 and to use it as a radial seal.
- a section of a possible embodiment of a white direct sealing means on the chuck is shown in Fig. 4.
- the embodiment according to FIG. 1 is identical in the structure of the chuck to the embodiment according to FIG. 1, so that reference is made to the above description for the overall structure of the chuck and only the differences are explained at this point.
- a circumferential groove 25 is arranged on the circumference of the axle carrier 2 within the clamping bush 1.
- a hollow chamber seal 22 is held in the circumferential groove 25 and has a compressed air connection 23 in the base of the circumferential groove 25.
- the compressed air connection 23 is connected to the air supply channel 34 via an inlet bore 26.
- the annular hollow chamber seal 22 is arranged within the Running groove 25, the annular hollow chamber seal 22 is arranged.
- the hollow chamber seal 22 has an expandable sealing profile 24 which has a plurality of outer sealing lips 29.
- the sealing lips 29 in the hollow chamber 24 lie with a sealing gap of the jacket opening 18 opposite the jacket 31 of the clamping bush 1. In the situation shown in FIG Clamping bush 1 is open.
- the hollow chamber seal 22 is stretched in such a way that the sealing lips 29 seal the sealing gap of the jacket opening 18 on the jacket section 31 of the clamping bush 1. In this case, there is essentially only a stretching of the hollow chamber seal 22.
- Hohlschich lines 22 can thus only bridge smaller sealing gaps, which are preferably ⁇ 3mm leads out.
- the embodiment of the hollow seal 22 according to FIG. 2 is suitable for bridging and sealing larger sealing gaps in the area above 3 mm.
Landscapes
- Sealing Devices (AREA)
- Gripping On Spindles (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202080081479.XA CN114728755B (zh) | 2019-11-26 | 2020-11-18 | 夹头 |
JP2022530805A JP2023503992A (ja) | 2019-11-26 | 2020-11-18 | チャック |
DE112020005796.8T DE112020005796A5 (de) | 2019-11-26 | 2020-11-18 | Spannfutter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019008202.8A DE102019008202A1 (de) | 2019-11-26 | 2019-11-26 | Spannfutter |
DE102019008202.8 | 2019-11-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021104958A1 true WO2021104958A1 (de) | 2021-06-03 |
Family
ID=73476157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2020/082500 WO2021104958A1 (de) | 2019-11-26 | 2020-11-18 | Spannfutter |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2023503992A (de) |
CN (1) | CN114728755B (de) |
DE (2) | DE102019008202A1 (de) |
WO (1) | WO2021104958A1 (de) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19607916A1 (de) | 1995-03-04 | 1996-09-05 | Barmag Barmer Maschf | Spannfutter in Spulmaschinen |
WO2016015988A1 (de) * | 2014-07-30 | 2016-02-04 | Oerlikon Textile Gmbh & Co. Kg | Spannfutter |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5346360Y2 (de) * | 1974-05-13 | 1978-11-07 | ||
DE3039064A1 (de) * | 1980-10-16 | 1982-09-09 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Spannfutter in spulmaschinen |
DE10218993A1 (de) * | 2002-04-27 | 2003-11-06 | Schlafhorst & Co W | Hülsenteller für einen Spulenrahmen |
DE10346096B4 (de) * | 2003-10-04 | 2005-08-11 | Saurer Gmbh & Co. Kg | Vorrichtung zum Aufwickeln einer Fadenreserve und einer Kreuzspule auf eine Spulenhülse |
DE102018000259A1 (de) * | 2018-01-13 | 2019-07-18 | Oerlikon Textile Gmbh & Co. Kg | Adaptereinrichtung zum Halten zumindest einer Spulhülse |
-
2019
- 2019-11-26 DE DE102019008202.8A patent/DE102019008202A1/de not_active Withdrawn
-
2020
- 2020-11-18 CN CN202080081479.XA patent/CN114728755B/zh active Active
- 2020-11-18 JP JP2022530805A patent/JP2023503992A/ja active Pending
- 2020-11-18 DE DE112020005796.8T patent/DE112020005796A5/de active Pending
- 2020-11-18 WO PCT/EP2020/082500 patent/WO2021104958A1/de active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19607916A1 (de) | 1995-03-04 | 1996-09-05 | Barmag Barmer Maschf | Spannfutter in Spulmaschinen |
WO2016015988A1 (de) * | 2014-07-30 | 2016-02-04 | Oerlikon Textile Gmbh & Co. Kg | Spannfutter |
Also Published As
Publication number | Publication date |
---|---|
DE112020005796A5 (de) | 2022-09-15 |
CN114728755B (zh) | 2023-08-04 |
CN114728755A (zh) | 2022-07-08 |
DE102019008202A1 (de) | 2021-05-27 |
JP2023503992A (ja) | 2023-02-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2301286C2 (de) | Vorrichtung zum Herstellen eines Rohlings für Luftreifen | |
DE2256933C3 (de) | Druckmittelbetätigter umlaufender Spannzylinder für Spanneinrichtungen | |
WO2007113143A1 (de) | Vorrichtung zur betätigung einer lamellenkupplung in einem getriebe | |
EP2755791A2 (de) | Werkzeugspindel einer honmaschine mit topfförmigem halter für einen honring | |
WO2016015988A1 (de) | Spannfutter | |
DE2545522A1 (de) | Reifenaufbaumaschine | |
EP1456108B1 (de) | Spulspindel mit erhöhter eigenfrequenz | |
DE602004006656T2 (de) | Gleitringdichtung für drehende Maschinen | |
DE4140872C2 (de) | Reifenbauvorrichtung mit segmentierter Trommel | |
DE2943189C2 (de) | Vorrichtung zum Setzen eines Wulstringes gegen die Lagen einer Reifenkarkasse | |
WO2021104958A1 (de) | Spannfutter | |
DE2234162A1 (de) | Verfahren und vorrichtung zum herstellen eines pneumatischen luftreifens | |
EP2182255A1 (de) | Bürstenringdichtung für eine Turbomaschine und Turbomaschine mit einer Bürstenringdichtungsanordnung | |
DE2444431C3 (de) | ||
DE2161406A1 (de) | Vorrichtung zum herstellen von luftreifen | |
EP3290179A1 (de) | Einrichtung zum füllen einer form | |
DE102014019712A1 (de) | Spannvorrichtung | |
DE500128C (de) | Vorrichtung zur Feststellung von Undichtigkeiten der Kolbendichtungen hydraulischer Pressen | |
AT507055B1 (de) | Kolben mit kolbenringen und stützringen | |
DE1579273B1 (de) | Reifenaufbaumaschine | |
CH359507A (de) | Verfahren für den Betrieb eines Labyrinthkolben-Kompressors und Kompressor zur Durchführung des Verfahrens | |
DE1085642B (de) | Kolbenkompressor zum Foerdern von gasfoermigem Medium | |
EP2961541B1 (de) | Haspel zum wickeln von metallband | |
DE19939986A1 (de) | Reifenaufbautrommel mit Spreizeinrichtung | |
DE3824581A1 (de) | Spanneinrichtung an einer werkzeugmaschinenspindel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20808388 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2022530805 Country of ref document: JP Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: R225 Ref document number: 112020005796 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20808388 Country of ref document: EP Kind code of ref document: A1 |