EP0662441B1 - Method and equipment for sucking off and automatically removing fly and dust in a bobbin winding station - Google Patents
Method and equipment for sucking off and automatically removing fly and dust in a bobbin winding station Download PDFInfo
- Publication number
- EP0662441B1 EP0662441B1 EP95200007A EP95200007A EP0662441B1 EP 0662441 B1 EP0662441 B1 EP 0662441B1 EP 95200007 A EP95200007 A EP 95200007A EP 95200007 A EP95200007 A EP 95200007A EP 0662441 B1 EP0662441 B1 EP 0662441B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bobbin
- thread
- dust
- fly
- sucking
- 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.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 title claims description 41
- 239000000428 dust Substances 0.000 title claims description 30
- 238000000034 method Methods 0.000 title claims description 19
- 238000009825 accumulation Methods 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 11
- 230000009471 action Effects 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
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
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/70—Other constructional features of yarn-winding machines
- B65H54/702—Arrangements for confining or removing dust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/70—Other constructional features of yarn-winding machines
- B65H54/707—Suction generating system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/08—Automatic end-finding and material-interconnecting arrangements
- B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
-
- 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 present invention relates to a method for sucking off and automatically removing the fly and dust in a bobbin winding station.
- the term “thread” indicates any kind of material of wool or cotton fibre
- the term “bobbin” or “conical bobbin” indicates any form of said thread wound in substantially helical coils.
- the purpose of the present invention is to propose a method, and equipment for its embodiment, for removing the dust of fibres and broken threads in the bobbin-winding station, without the disadvantages mentioned above and capable of guaranteeing higher efficiency and duration, without requiring any intervention on the part of maintenance workers or those responsible for the functional efficiency of the equipment.
- Another purpose of the present invention is to rationalize the suction equipment operating in the area surrounding the unwinding pirn, from the point of view of both its capacity and suction efficiency, to effectively remove the fibrils, the fly and dust produced by the rapid unwinding of the thread.
- a further purpose of the present invention is to provide a method for sucking off and automatically removing the fly and dust in a bobbin-winding station of a new design, which is at the same time simple and which offers the possibility of suction in the whole unwinding area using for the most part equipment and functions already present in the thread-winding process on the bobbin in formation.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Coiling Of Filamentary Materials In General (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Secondary Cells (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Vacuum Packaging (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
Description
In textile machines such as automatic winders, there are suction pipes for a wide range of purposes, for example for cleaning certain parts of the machine, for catching and preparing thread-ends, for sucking off excess, or cut thread-ends, and the like. In this case it is customary to move the mobile pipe-end, for example to take the pipe-end to a certain point where it must carry out its sucking action to a considerable extent. It is also known that numerous suction pipes in textile machines operate only for short times and remain inactive for longer periods.
On this basis it is known that in thread-winding stations, the thread, composed of a mixture of fibres of different lengths, is subjected to strong tensile stress during unwinding, causing the detachment of a certain quantity of fibres, mainly short ones and the formation of dust. It is therefore necessary to remove flying fibres and fibrils and dust in the area surrounding the unwinding pirn. Pneumatic cleaning devices have already been proposed, composed of suction nozzles applied near the areas to be cleaned, and a trolley has also been proposed, carrying one or more cleaning pipes consisting of either suction or blowing pipes, which are moved alternatively along the winding front. In addition to other devices, cases near the pirn have been proposed, these cases being connected to a suction system according to DE-A-2919768.
It is understandable that for casual operations which cannot be programmed in time, the efficiency of the workers is low.
The purpose of the present invention is to propose a method, and equipment for its embodiment, for removing the dust of fibres and broken threads in the bobbin-winding station, without the disadvantages mentioned above and capable of guaranteeing higher efficiency and duration, without requiring any intervention on the part of maintenance workers or those responsible for the functional efficiency of the equipment.
Another purpose of the present invention is to rationalize the suction equipment operating in the area surrounding the unwinding pirn, from the point of view of both its capacity and suction efficiency, to effectively remove the fibrils, the fly and dust produced by the rapid unwinding of the thread. A further purpose of the present invention is to provide a method for sucking off and automatically removing the fly and dust in a bobbin-winding station of a new design, which is at the same time simple and which offers the possibility of suction in the whole unwinding area using for the most part equipment and functions already present in the thread-winding process on the bobbin in formation.
These and other purposes of the invention, which will become more evident in the course of the description, are obtained by the method described and claimed hereunder which is capable of:
- sucking in the area surrounding the unwinding pirn during the whole operating time of collecting the thread wound onto the bobbin in formation, the fly and dust produced by the unwinding of the thread;
- withholding and accumulating the fly and dust in the suction pipe of the guide slot of the thread-end wound onto the bobbin in formation and said accumulation is withheld by a grate filter having suitable dimensions;
- removing the accumulation of fly and dust each time the winding is stopped and the suction pipe which holds and prepares the thread-end of the bobbin for restarting the production of the bobbin-winding station in a short period of time, is activated;
- moving said accumulation of fly and dust into the
central pipe which is placed in depression by the
central suction system of the whole winding
machine.
The method for sucking off and automatically removing the fly and dust in a bobbin-winding station also includes the removal of the accumulation of fly and dust at each interruption of the thread being fed due to the bobbin end, or controlled cutting of the thread, or accidental breaking of the thread.
The equipment used for the practical embodiment of the present invention also includes programming devices for co-ordinating the sequence of activations of the various operating elements, as well as regulating devices of the depression values in the above suction pipes.
The invention will be described in detail hereafter on the basis of the embodiment example schematically represented in the drawings of the figures of the enclosed tables, and other particulars and characteristics will be explained, bearing in mind that there are numerous other forms of embodiment of the invention which can be used.
In the enclosed drawings:
- figure 1 shows a schematic side view in assonometrical perspective of a bobbin-winding station wherein a thread unwound from a lower feeding pirn is wound onto an upper winding bobbin, and this figure shows the exact moment when the winding is in process and consequently also the suction action in the whole area surrounding the unwinding pirn,
- figure shows a partial front view of an upper part of the bobbin-winding station which schematically illustrates the engine with the fan wedged onto its shaft to put a pipe in depression, which includes at least one grate filter;
- figure 3 shows a schematic side view in assonometrical perspective of a bobbin-winding station at the exact moment when the winding is blocked owing to interruption of the thread and the accumulated fly and dust are removed along the suction pipe.
In the enclosed figures:
1 is a three-phase engine, or similar, which activates the single bobbin-
Said
The description of the principle of operation which follows, with reference to the figures indicated, mainly refers to what is new and therefore only describes the equipment of the present invention, which embodies a method for sucking off and automatically removing the fly and dust in a bobbin-winding station, bearing in mind that complementary devices are necessary for its functioning, which will not be included in the description as these are already known to experts in the art.
In addition, the functioning of the equipment which embodies the method of the present invention can be easily understood by observing the figures of the enclosed tables.
During the operation of the bobbin-
The fibres, or fibrils or cut thread and the dust in general suspended and carried by the current of air are intercepted by
At the exact moment the winding stops by the controlled or accidental interruption of the thread, engine 1 stops and also
Immediately after this the thread-ends are knotted to restart the cycle of continuous thread. The end of
The continuity of the thread is restored and the winding of the thread restarted together with the gradual accumulation of fly on
It is clear that minor modifications can be made to the equipment proposed in the present invention remaining however within the limits of the invention.
Claims (3)
- Method for sucking off and automatically removing the fly and dust in a bobbin-winding station (20) wherein a thread unwound from a lower feeding pirn (11) is wound onto an upper winding bobbin (16) and said method is characterized by:sucking in the area surrounding the unwinding pirn, during the whole operating time of the collection of the thread wound onto the bobbin in formation, the fly and dust produced by the unwinding of the thread;withholding and accumulating the fly and dust in the known suction duct (10) of the guide slot of the thread-end wound onto the bobbin in formation and said accumulation is withheld by a suitably sized grate filter (6);removing the accumulation of fly and dust each time the winding is stopped and the suction duct, which catches and prepares the thread-end of the bobbin, is activated, to restart in a short time the productive functioning of the bobbin-winding station;sending said accumulation of fly and dust into a central duct (7), which is placed in depression by the centralized sucking system of the whole winding machine.
- Method for sucking off and automatically removing the fly and dust in a bobbin-winding station (20) according to claim 1, characterized in that the accumulation of fly and dust is removed at each interruption of the thread, either controlled or due to the accidental breaking of the thread.
- Equipment for the embodiment of the method according to claim 1, for sucking off and automatically removing the fly and dust in a bobbin-winding station (20), characterized in that it includes in reciprocal co-operation at least one fan device (3) rigidly wedged onto the driving shaft of the bobbin-winding station, at least one encasement (8) which suitably covers the unwinding pirn (11) and forces the air surrounding it into a suction duct (4), which leads into the suction pipe (23) activated during the catching of the thread-end wound onto the bobbin (16) in formation owing to an interruption in the feeding of the thread, at least one grate filter (6) suitably shaped and sized to make it an integral part of the internal surface of the known suction pipe (10) for catching the thread wound onto the bobbin, a suction duct (5) which extends from the fan wedged onto the driving shaft and grate filter mentioned above towards a central duct, and opening and closing devices (19, 21) of the suction ducts (4, 23) to make each operating suction phase more effective.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI940019 | 1994-01-11 | ||
ITMI940019A IT1269702B (en) | 1994-01-11 | 1994-01-11 | METHOD AND EQUIPMENT FOR VACUUMING AND FOR AUTOMATICALLY REMOVING THE LANUGGINE AND THE PULVISCOLO IN A WRAPPING STATION |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0662441A1 EP0662441A1 (en) | 1995-07-12 |
EP0662441B1 true EP0662441B1 (en) | 1998-04-01 |
Family
ID=11367475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95200007A Expired - Lifetime EP0662441B1 (en) | 1994-01-11 | 1995-01-04 | Method and equipment for sucking off and automatically removing fly and dust in a bobbin winding station |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0662441B1 (en) |
CN (1) | CN1120084A (en) |
DE (1) | DE69501898T2 (en) |
ES (1) | ES2115312T3 (en) |
IT (1) | IT1269702B (en) |
RU (1) | RU95103727A (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20070133A1 (en) | 2007-01-29 | 2008-07-30 | Savio Macchine Tessili Spa | SUCTION SYSTEM FOR ROCKERS |
JP4403519B2 (en) * | 2007-08-21 | 2010-01-27 | 村田機械株式会社 | Cotton collection equipment |
DE102009036409A1 (en) | 2009-08-06 | 2011-02-10 | Oerlikon Textile Gmbh & Co. Kg | Ring spinning machine |
IT1396438B1 (en) | 2009-11-16 | 2012-11-23 | Savio Macchine Tessili Spa | INDIVIDUAL ASPIRATION SYSTEM FOR ROCKING UNIT. |
IT1403276B1 (en) * | 2010-12-20 | 2013-10-17 | Savio Macchine Tessili Spa | INDIVIDUAL CLEANING SYSTEM FOR ROCKING UNIT |
ITMI20110585A1 (en) * | 2011-04-08 | 2012-10-09 | Savio Macchine Tessili Spa | SYSTEM FOR THE COLLECTION AND RECOVERY OF ROCKING SFRIDES |
CH705237A1 (en) * | 2011-07-15 | 2013-01-15 | Rieter Ag Maschf | Drive a winder. |
CN102514871B (en) * | 2011-12-27 | 2014-03-12 | 重庆国际复合材料有限公司 | Yarn seeking process |
ITPD20130115A1 (en) * | 2013-04-30 | 2014-10-31 | Savio Macchine Tessili Spa | WINDER |
ITPD20130135A1 (en) * | 2013-05-16 | 2014-11-17 | Savio Macchine Tessili Spa | WINDING AND ROCKING METHOD |
JP2017053051A (en) * | 2015-09-08 | 2017-03-16 | 村田機械株式会社 | Yarn winding machine |
DE102016112641A1 (en) | 2016-07-11 | 2018-01-11 | Rieter Ingolstadt Gmbh | Winding unit with a movable cover unit |
DE102016114960A1 (en) * | 2016-08-11 | 2018-02-15 | TRüTZSCHLER GMBH & CO. KG | Cleaning device for a spinning preparation machine |
DE102017107424A1 (en) * | 2017-04-06 | 2018-10-11 | Maschinenfabrik Rieter Ag | Apparatus and method for sucking, temporary storage and removal of a thread and textile machine |
JP2019108629A (en) * | 2017-12-19 | 2019-07-04 | 村田機械株式会社 | Spinning machine and method for capturing yarn |
CN110273243B (en) * | 2019-04-26 | 2020-05-29 | 邵东县宇岳针织有限公司 | Brush for removing hair balls |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH402694A (en) * | 1963-08-29 | 1965-11-15 | Schweiter Ag Maschf | Cleaning device on automatic winding machine |
IT1219923B (en) * | 1987-04-15 | 1990-05-24 | Murata Machinery Ltd | DEVICE TO PREVENT THE DIFFUSION OF LANUGINE IN A WINDER |
DE4009170C2 (en) * | 1990-03-22 | 1998-11-26 | Schlafhorst & Co W | Winding unit of an automatic winder |
IT1246472B (en) * | 1990-10-23 | 1994-11-19 | Savio Spa | IMPROVEMENTS IN SPINNING MACHINES WITH SUCTION SYSTEM TO CAPTURE AND REMOVE PULVISCOLO, FIBERS AND BROKEN WIRES. |
-
1994
- 1994-01-11 IT ITMI940019A patent/IT1269702B/en active IP Right Grant
-
1995
- 1995-01-04 DE DE69501898T patent/DE69501898T2/en not_active Expired - Fee Related
- 1995-01-04 EP EP95200007A patent/EP0662441B1/en not_active Expired - Lifetime
- 1995-01-04 ES ES95200007T patent/ES2115312T3/en not_active Expired - Lifetime
- 1995-01-06 CN CN95101122.7A patent/CN1120084A/en active Pending
- 1995-01-10 RU RU95103727/12A patent/RU95103727A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE69501898T2 (en) | 1998-10-15 |
ITMI940019A1 (en) | 1995-07-11 |
ES2115312T3 (en) | 1998-06-16 |
EP0662441A1 (en) | 1995-07-12 |
ITMI940019A0 (en) | 1994-01-11 |
RU95103727A (en) | 1996-11-10 |
DE69501898D1 (en) | 1998-05-07 |
CN1120084A (en) | 1996-04-10 |
IT1269702B (en) | 1997-04-15 |
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