WO2003078707A1 - Drive device for a re-reeling sleeve of a centrifugal spinning device - Google Patents
Drive device for a re-reeling sleeve of a centrifugal spinning device Download PDFInfo
- Publication number
- WO2003078707A1 WO2003078707A1 PCT/EP2003/002803 EP0302803W WO03078707A1 WO 2003078707 A1 WO2003078707 A1 WO 2003078707A1 EP 0302803 W EP0302803 W EP 0302803W WO 03078707 A1 WO03078707 A1 WO 03078707A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- guide tube
- thread guide
- centrifuge
- spinning
- Prior art date
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
- D01H9/04—Doffing arrangements integral with spinning or twisting machines
- D01H9/06—Removing yarn from centrifugal cups on to yarn carriers
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/08—Spinning or twisting machines in which the product is wound-up continuously cup, pot or disc type, in which annular masses of yarn are formed by centrifugal action
Definitions
- centrifugal spinning for example, is a long-known spinning process.
- centrifugal spinning In centrifugal spinning, a basic distinction is made between two different types of spinning, the so-called one-step spinning and the so-called two-step spinning.
- a feed material either a sliver stored in a spinning can or a sliver of fiber as a roving bobbin, is warped in a drafting system in accordance with the desired yarn fineness and conveyed via an axially displaceable thread guide tube into a spinning centrifuge rotating at high speed.
- the feed material emerging from the mouth of the thread guide tube lies against the inner wall of the spinning centrifuge, forming a thread leg, and is carried along by it. This means that the original material is rotated by the rotation of the yarn leg rotating with the spinning centrifuge.
- the thread resulting from this rotation is deposited on the inner wall of the spinning centrifuge by the thread guide tube, which is mounted so as to be changeable and axially displaceable, and forms a package there, which is generally referred to as a spinning cake.
- the speed of the spinning centrifuge and the delivery speed of the stock material are matched to one another so that the thread deposited as a spinning cake already has its final rotation and in a subsequent operation onto a winding tube, for example, held on the thread guide tube or inserted from below into the spinning centrifuge can be wrapped.
- the spinning bobbins that arise during such rewinding operations are later rewound into large-volume cross-wound bobbins by means of a winder connected downstream in the production process.
- Centrifuge spinning devices in which the rewinding sleeve is kept ready on the thread guide tube and can be shifted into a rewinding position if required, that is to say for initiating the rewinding process, are described, for example, in DE 195 23 835 AI.
- Locking device that defines two controllable
- the upper bolt stop fixes the winding tube in a rest position during the spinning process.
- the lower bolt stop indicates the rewinding position of the
- a positively drivable winding tube holder is arranged on the thread guide tube, which has a gripping mechanism for the winding tube at the end.
- a pneumatic thrust piston gear is connected to the rewinding sleeve holder, which enables the rewinding sleeve to be shifted from its rest position into its rewinding position and then to a doffing position.
- the somewhat bulky thrust piston gearbox is located above the spinning centrifuge, to the side of the thread guide tube.
- a centrifuge spinning device is known from DE 195 48 675 AI, in which the thread guide tube can be changed by means of a stepping motor.
- the thread guide tube is connected to the toothed belt of a belt drive, the drive wheel of which can be acted upon by a stepper motor.
- the invention has for its object to provide a compact centrifuge spinning device with a drive device for the rewinding sleeve, which ensures an exact and reliable positioning of the rewinding sleeve relative to the spinning centrifuge.
- This object is achieved according to the invention by a centrifuge spinning device as described in claim 1.
- the embodiment according to the invention is characterized in particular by a compact design.
- Activation of the thrust piston gear can always actively shift the rewinding sleeve by a defined, reproducible distance.
- the thrust piston gear is designed as a pneumatic cylinder, the piston chamber of the thrust piston gear being connected to a compressed air source via a pneumatic line and a directional control valve which can be controlled via a workstation computer.
- the rewinding sleeve can be moved quickly and safely into a predetermined working position if necessary, upon a corresponding signal from the workstation computer, by moving the piston and the resulting extension of the piston rod.
- the return stroke of the piston of the pneumatic cylinder is spring-loaded. This means that the pneumatic cylinder has an annulus side
- Spring element for example a coil spring.
- the coil spring pushes the piston of the pneumatic cylinder back into the starting position as soon as the piston chamber passes over the
- Displacement device of a rewinding sleeve is relatively small, so that the displacement device is quite inexpensive.
- the thrust piston transmission on the piston chamber side can be acted upon by a spring element and the piston or the piston rod can be fixed by a switchable locking device.
- the piston is reset via the traversing drive of the thread guide tube, which in the doff position tensions the spring element again.
- the locking device is also connected in an advantageous embodiment via a control line to the workstation computer and can if necessary in
- the rewinding sleeve can be shifted under spring force from its rest position into its rewinding position.
- Thrust piston gear or its operation As described in claim 6, a guide and locking bush is connected to the piston rod of the thrust piston transmission, which is matched with its outer diameter to the inner diameter of the rewinding sleeve.
- the guide and locking bush also has a through hole for the thread guide tube.
- the guide and locking bush is axially displaceable via its through hole relative to the thread guide tube and in turn reliably fixes the rewinding sleeve.
- a gill means acting in the radial direction is provided for fixing the rewinding sleeve on the guide and locking bush.
- This gill means which is designed, for example, as a slotted spring ring, is somewhat larger in the unloaded state than the inside diameter of the winding tube.
- the spring washer which can be made of spring steel or plastic, for example, advantageously also has an annular, convex projection which corresponds in a form-fitting manner with a corresponding recess on the inside of the winding tube.
- the guide and locking bushing has an elastic stop element which limits the axial insertion of the winding tube. Due to the elastic material of the stop element, for example rubber, this prevents the rewinding sleeve from being damaged when it is pushed onto the guide and locking bushing.
- the thread guide tube and the thrust piston gear are fixed on a carriage.
- the slide is slidably arranged in a bearing housing and can be moved parallel to the central axis of the spinning centrifuge by means of a stepping motor which is connected to the slide via a belt drive.
- the stepper motor is controlled via the workstation computer in such a way that, on the one hand, the thread guide tube can be changed and lowered during the spinning process, thus ensuring proper thread placement on the inner wall of the spinning centrifuge, and, on the other hand, that the winding tube can be moved to a doff position below the spinning centrifuge if necessary and can be transferred there to an appropriate means of transport, for example to an individual transport plate.
- FIG. 1A in front view of an inventive
- FIG. 1B shows the centrifuge spinning device according to FIG. 1A, the rewinding sleeve having been moved into its rewinding position with respect to the thread guide tube by means of the drive device and the thread guide tube being lowered into the doff position,
- Thrust piston gear as can be used to displace the rewinding sleeve relative to the thread guide tube
- Fig. 3 shows a guide and locking bush for fixing the rewinding sleeve on the piston rod of a thrust piston transmission, on a larger scale.
- FIGS. 1A and IB a front view, partly in section, schematically shows a centrifuge spinning device, generally designated by the reference number 1.
- centrifuge spinning devices 1 have long been known in connection with centrifuge spinning machines and are described in relatively detail, for example in WO-98/11 284.
- centrifuge spinning devices 1 each have one Spinning centrifuge 3, which is rotatably supported in a spinning housing 2 during the spinning process and rotatably supported by magnetic bearings 4 and acted upon by an electromagnetic individual drive 5, rotates at high speed.
- the electromagnetic single drive 5 of the spinning centrifuge 3 is usually arranged in the region of a neck-like retraction.
- the centrifuge spinning device 1 furthermore has a drafting device 6 for drawing an original material 18, and one by means of a signal line 20
- Workstation computer 19 connected sensor device 13 for monitoring the current feed material 18 and via a thread guide tube 7, which fits into the spinning centrifuge 3 and which can be axially displaced to the spinning centrifuge 3 by means of a special drive.
- a bearing housing 17 is arranged above the spinning centrifuge 3, on or in which a slide 16 is slidably mounted.
- the carriage 16 is connected via a toothed belt 23 to a stepper motor 8, which in turn is connected to a workstation computer 19 via a signal line 35.
- the stepper motor 8 can be controlled so that the thread guide tube 7 constantly changes during the spinning process and at the same time can be axially displaced downwards.
- a thrust piston transmission 10 is also fixed with its cylinder body 14.
- the thrust piston gear 10 which serves to shift the rewinding sleeve 9 relative to the thread guide tube 7, as in 2A indicated, designed as a pneumatic cylinder, it has a piston chamber 24, which is connected to a compressed air source 30 via a pneumatic line 27 and a 3/2-way valve 22.
- the thrust piston gear 10 On the annulus side, the thrust piston gear 10 has a spring element 28, for example a helical spring.
- the spring element 28 presses the piston 11 of the thrust piston transmission 10 into its starting position as soon as the piston chamber 24 is depressurized.
- the piston 11 and the subsequent piston rod 12 of the thrust piston transmission 10 are designed, for example, as a one-piece component and have a centrally arranged through bore 36 through which the thread guide tube 7 is guided.
- controllable locking device 41 which is connected to the
- a guide and locking bushing 31 is fixed on the piston rod 12 of the thrust piston transmission 10.
- the guide and locking bush 31 also has a through hole 40 through which the thread guide tube 7 is guided.
- the guide and locking bushing 31 has a gill means 32 which engages in a corresponding recess 33 in the winding tube 9 and thereby reliably adjusts it.
- the guide and locking bushing 31 has an elastic stop element 34 arranged at the end, by means of which the winding sleeve 9 is to be prevented from being compressed when being pushed onto the guide and locking bushing 31 and thereby being damaged.
- a stock material 18 is fed to a sliver drafting device arranged above the spinning centrifuge 3, for example a drafting system 6.
- the original material 18 for example a sliver drawn from a (not shown) spinning can or a roving unwound from a (also not shown) flyer spool, is drawn in the drafting device 6 according to the desired fineness and is fed via the thread guide tube 7 into the spinning centrifuge 3 rotating at high speed passed where it rests against the inner wall 25 of the rotating spinning centrifuge 3 to form a rotating thread leg and thereby receives its final rotation.
- the thread resulting from this rotation is positioned by the thread guide tube 7 on the inner wall 25 of the spinning centrifuge 3 in such a way that a defined yarn package, a so-called spinning cake, is produced.
- the thread guide tube 7 is moved up and down by the stepping motor 8 and at the same time continuously lowered downwards.
- the spun thread is thereby temporarily stored in the manner of a so-called cop winding on the inner wall 25 of the spinning centrifuge 3.
- Thread guide tube 7 is activated by appropriate control of the
- Stepper motor 8 first shifted to the next top dead center of its traversing stroke.
- the job computer 19 then uses the
- Signal line 21 controlled the 3/2-way valve 22 so that the
- Pneumatic line 27 is continuously connected to the compressed air source 30.
- Thrust piston gear 10 are in the direction R relative to
- Thread guide tube 7 With the piston rod 12 also the guide and attached to the piston rod
- Locking bush 31 which in turn fixes the rewinding sleeve 9, moved.
- the spinning cop resulting from the rewinding is then doped and fed, for example, to a downstream (not shown) winding machine.
- the stepper motor 8 is actuated so that the slide 16 and thus the thread guide tube 7 is moved into a doff position 39 located below the spinning centrifuge 3.
- the spinning cop is transferred to a means of transport, for example an individual transport plate equipped with a holding mandrel, and a new rewinding sleeve 9 is taken over from a further transport plate. Then the thread guide tube 7 is moved back into its starting position and a new spinning process is started.
- a corresponding sequence also occurs if, instead of the exemplary embodiment of a thrust piston gear in the form of a pneumatic cylinder 10 shown in FIG. 2A, the variant of a thrust piston gear shown in FIG. 2A is used.
- the workstation computer 19 controls the locking device 41 instead of a directional control valve 43 via the control line 43 when the rewinding sleeve 9 is to be transferred from its rest position into the rewinding position.
- the locking pin 42 of the locking device 41 is then electromagnetically withdrawn and the piston 11 of the thrust piston transmission 10 moves down under the influence of the spring element 40 until it moves against the preferably elastic stop 44, which defines the rewinding position 38.
- Thrust piston gear 10 tensioned again.
- This renewed tensioning of the spring element 40 preferably takes place after the takeover of a new rewinding sleeve.
- the compressed spring element 40 is then by the
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03714845A EP1488029A1 (en) | 2002-03-18 | 2003-03-18 | Drive device for a re-reeling sleeve of a centrifugal spinning device |
AU2003219072A AU2003219072A1 (en) | 2002-03-18 | 2003-03-18 | Drive device for a re-reeling sleeve of a centrifugal spinning device |
JP2003576692A JP2005520939A (en) | 2002-03-18 | 2003-03-18 | Drive device for rewinding tube of centrifugal spinning device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002111861 DE10211861A1 (en) | 2002-03-18 | 2002-03-18 | Centrifugal spinning device |
DE10211861.2 | 2002-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003078707A1 true WO2003078707A1 (en) | 2003-09-25 |
Family
ID=27797861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/002803 WO2003078707A1 (en) | 2002-03-18 | 2003-03-18 | Drive device for a re-reeling sleeve of a centrifugal spinning device |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1488029A1 (en) |
JP (1) | JP2005520939A (en) |
CN (1) | CN1643195A (en) |
AU (1) | AU2003219072A1 (en) |
DE (1) | DE10211861A1 (en) |
WO (1) | WO2003078707A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7010104B2 (en) * | 2018-03-23 | 2022-02-10 | 株式会社豊田自動織機 | Pot spinning machine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4426897A1 (en) * | 1994-07-29 | 1996-02-01 | Schlafhorst & Co W | Yarn transfer when rewinding yarn cake to yarn tube in pot spinning |
DE19548675A1 (en) * | 1995-12-23 | 1997-06-26 | Csm Gmbh | Spinning tube drive for centrifugal or vacuum spinner |
US5813208A (en) * | 1995-10-16 | 1998-09-29 | W. Schlafhorst Ag & Co. | Device for holding and releasing bobbin tubes in a pot spinning machine |
US5896735A (en) * | 1996-12-05 | 1999-04-27 | W. Schlafhorst Ag & Co. | Method for producing a spinning cop in a pot spinning machine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19523938B4 (en) * | 1995-06-30 | 2004-03-04 | Saurer Gmbh & Co. Kg | Pot spinning machine |
-
2002
- 2002-03-18 DE DE2002111861 patent/DE10211861A1/en not_active Withdrawn
-
2003
- 2003-03-18 AU AU2003219072A patent/AU2003219072A1/en not_active Abandoned
- 2003-03-18 EP EP03714845A patent/EP1488029A1/en not_active Withdrawn
- 2003-03-18 CN CN 03806476 patent/CN1643195A/en active Pending
- 2003-03-18 WO PCT/EP2003/002803 patent/WO2003078707A1/en not_active Application Discontinuation
- 2003-03-18 JP JP2003576692A patent/JP2005520939A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4426897A1 (en) * | 1994-07-29 | 1996-02-01 | Schlafhorst & Co W | Yarn transfer when rewinding yarn cake to yarn tube in pot spinning |
US5813208A (en) * | 1995-10-16 | 1998-09-29 | W. Schlafhorst Ag & Co. | Device for holding and releasing bobbin tubes in a pot spinning machine |
DE19548675A1 (en) * | 1995-12-23 | 1997-06-26 | Csm Gmbh | Spinning tube drive for centrifugal or vacuum spinner |
US5896735A (en) * | 1996-12-05 | 1999-04-27 | W. Schlafhorst Ag & Co. | Method for producing a spinning cop in a pot spinning machine |
Also Published As
Publication number | Publication date |
---|---|
CN1643195A (en) | 2005-07-20 |
EP1488029A1 (en) | 2004-12-22 |
AU2003219072A1 (en) | 2003-09-29 |
JP2005520939A (en) | 2005-07-14 |
DE10211861A1 (en) | 2003-10-02 |
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