EP3140441A1 - Vorrichtung zum reinigen von walzenoberflächen einer streckwerksvorrichtung - Google Patents
Vorrichtung zum reinigen von walzenoberflächen einer streckwerksvorrichtungInfo
- Publication number
- EP3140441A1 EP3140441A1 EP15722583.0A EP15722583A EP3140441A1 EP 3140441 A1 EP3140441 A1 EP 3140441A1 EP 15722583 A EP15722583 A EP 15722583A EP 3140441 A1 EP3140441 A1 EP 3140441A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction
- stripping
- bottom wall
- opening
- suction channel
- 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
Links
- 238000004140 cleaning Methods 0.000 title description 5
- 239000002657 fibrous material Substances 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims abstract description 3
- 238000012545 processing Methods 0.000 claims abstract description 3
- 238000009987 spinning Methods 0.000 claims abstract description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000000356 contaminant Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 230000035508 accumulation Effects 0.000 abstract description 6
- 238000009825 accumulation Methods 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 15
- 239000003570 air Substances 0.000 description 10
- 239000000835 fiber Substances 0.000 description 8
- 238000000605 extraction Methods 0.000 description 7
- 238000007790 scraping Methods 0.000 description 7
- 230000000737 periodic effect Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000012080 ambient air Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 235000015001 Cucumis melo var inodorus Nutrition 0.000 description 2
- 240000002495 Cucumis melo var. inodorus Species 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/60—Arrangements maintaining drafting elements free of fibre accumulations
- D01H5/62—Non-rotary cleaning pads or plates; Scrapers
- D01H5/625—Non-rotary cleaning pads or plates; Scrapers in cooperation with suction or blowing means
Definitions
- the invention relates to a device on a spinning preparation machine with a drafting system, with several successively arranged Walzenpa- ren with top and bottom rollers, with at least two elongated stripping devices which rest for removing dirt and other contaminants each with their scraping edges on one of the top rollers and with a, above the stripping means arranged, connected to a vacuum source suction hood.
- stripping devices are used in practice, whose scraping edges rest on the circumferential surface of the rollers with a specific contact pressure.
- e.g. flexible scrapers are used, which lie under a certain Anstellwickel and with a certain preload on the circumference of the rollers.
- the flexible scrapers are usually attached to a holder, via which they are attached to the drafting system.
- Such a device is z. B. from EP 1 700 937 B1.
- a suction hood is provided above the wiping device, which is in communication with a vacuum source.
- GQNFIRMATION COPY to lead. This can lead to accumulations in this area and ultimately to impairment of the drawing process.
- the Abstreiftician of the respective scraper is adversely affected and on the other hand, such accumulations, when they detach from the scraper, see in the nip between see the lower and upper roller and thus adversely affect the drawing process. This can lead to the formation of a non-uniform sliver, which is formed after the drafting.
- the invention thus has the object to eliminate the disadvantages of known designs and to propose a device in which the stripped from scrapers of roll surfaces material can be removed safely even at high speeds from the stripping.
- each of the stripping devices is attached to its own suction channel, the stripping edge of the respective stripping device projecting beyond its associated suction channel in the region of a first opening of the suction channel, and the suction channels being fastened to an apertured bottom wall wherein the respective suction channel is provided with a second opening opposite the first opening, which faces one of the openings of the bottom wall, wherein the suction hood projects beyond the openings of the bottom wall and is mounted on the side of the bottom wall opposite the suction channels.
- each stripping device By proposing to attach each stripping device to an individual suction channel, it is possible to tune or form the respective suction channel to the inserted stripping device, so that in this area a sufficient air flow is generated to secure the stripped material safely and quickly to transfer a subsequent suction hood connected to a vacuum source. Thus, unwanted accumulations of stripped material can not arise in the stripping area.
- Such a device claimed according to the invention can also be used for stripping under rollers.
- the stripping device In order to be able to adapt the stripping device to an adjustment of the draft distances (distance between the clamping lines of successive pairs of rollers) in an area of distortion (pre-or main drafting area) of the drafting system, it is proposed that at least one of the suction ducts be displaceable transversely to the longitudinal direction of the stripping devices on the bottom wall is appropriate. This makes it possible to align the scraper to the new position of the stripped top roller without the bottom wall must be adjusted.
- the width dimension of the opening provided in the bottom wall is greater than the width dimension of the second opening of the suction, which faces the respective opening of the bottom wall. This ensures that the second opening of the respective suction channel faces the bottom wall even after the adjustment of an at least equally large passage opening in terms of area.
- the respective displaceable suction channel is provided in the region of its second opening with cover elements, by means of which the region of the opening of the bottom wall of the suction channel is closed, which projects beyond the region of the second opening of the displaceable suction channel.
- the front and rear channel wall of the respective suction channel has a distance a between 2 and 10 mm to Abstreif issued which, seen in the longitudinal direction of the stripping, at their ends on the suction channel are attached.
- the stripping device is in the proposed embodiment at least partially within the suction and is surrounded by the applied negative pressure on both sides of its two longitudinal sides of air and thus kept completely clean.
- the distance between the stripping device and the respective channel wall is to be interpreted in such a way that on the one hand no blockages caused by a too small selected space and on the other hand, the free space should not be too large, so that a sufficient air velocity within the suction is guaranteed to the stripped To transfer material into the extraction hood.
- the spacings of the wiper device be different to the front and to the rear channel wall.
- a further embodiment is proposed, wherein - viewed transversely to the longitudinal direction of the stripping and in the conveying direction F - the Abstreifein- direction is mounted in extension of the front channel wall and a distance between 8 and 20 mm to the rear channel wall of the suction channel, which he at least partially faces.
- the bottom wall is fixed to a frame which is pivotally mounted on a machine frame via pivot axis, wherein the pivot axis is parallel to the longitudinal direction of the stripping devices and mounted on the frame, the bearings of the upper rollers of the drafting system.
- the bottom wall is mounted movably on the frame transversely to the longitudinal direction of the stripping device and held in a working position via at least one spring element is, with the one or more spring elements supported on the frame and on the other hand on the bottom plate and with a mounted between the frame and the bottom wall adjusting means over which the bottom wall periodically, seen transversely to the longitudinal directions of the stripping devices, is displaceable.
- the use of a pneumatically actu Barer bellows cylinder is proposed as the actuating means.
- the adjusting means for the periodic reciprocating movement and the return means in the form of a spring element in a common device (eg cylinder combined with spring element).
- the suction hood is provided with circumferential sealing elements over which it rests on the bottom wall and is held by fastening means. This allows a simple and quick attachment of the suction hood on the bottom wall with a secure seal against the ambient air. The dismantling of the suction hood is very simple and ensures quick access for cleaning purposes in the region of the second opening of the respective suction channels.
- the hood is made of transparent material.
- FIG. 1 shows a schematic side view of a drafting system with a scraper device designed according to the invention.
- FIG. 1 a is an enlarged partial view of Fig.1
- FIG. 1 c shows a partial view according to FIG. 1 a with a further exemplary embodiment
- Fig. 2 is a sectional view X-X of Figure 1
- FIG 1 a schematic side view of a drafting system 1 is shown, with successively arranged pairs of rollers 2, 3; 4, 5; and 6, 7 are provided, which are provided for processing a fiber G in a Vorverzugszone W and a main drafting zone HV.
- the fiber material G to be drawn is thereby moved in the conveying direction F through the drafting system 1.
- the lower rollers 2, 4, 6 connected to drive means, not shown, are generally designed as profiled steel rollers and are rotatably mounted in a machine frame MG.
- The, associated with the lower rollers upper rollers 3, 5, 7 usually have a rubberized surface (peripheral surface) Z and are pressed during operation via a device, not shown, against the corresponding associated lower roller 2, 4, or 6 to form a nip K1, K2, K3.
- the top rollers 3, 5, 7 are rotatably supported via axes A in bearings 26, 27, 28 and are via friction of the respective cooperating with them lower rollers 2, 4, 6 driven.
- the bearings 26, 27, 28, which are arranged at the respective ends of the top rollers, are fixed to a frame 24 which is pivotally mounted about a pivot axis 22 on the machine frame MG. In the lower position shown in FIG.
- the frame 24 is in a working position, in which the upper rollers 3, 5, 7 rest on the lower rollers 2, 4, 6, the frame via a device not shown in this Position is locked.
- the frame 24 can be pivoted upwardly about the pivot axis 22 in a shut-down position. In this pivoting operation, the top rollers 3, 5, 7 are pivoted with, whereby a free access to the lower rollers 2, 4, 6 is made possible.
- 5 and 7 stripping devices 9 which consist of a holder H and a scraper E with a scraping edge K.
- the scrapers are made of a flexible material (e.g., plastic, rubber, etc.) and may be glued or otherwise bonded to the holder.
- the respective stripping devices 9 are each mounted within a suction channel 1 1, 12 or 13 and are secured at its two ends via fastening means 20 shown schematically in Figure 2 on an outer wall of the respective suction channel and in the in Fig.1 and Fig. 1a shown working position held. In this position, the respective, provided with the scraping edge K end of the scraper protrudes by a certain length from a first opening 01 from the respective suction channel out and lies under a bias on the peripheral surface Z of the respective upper roller.
- the stripping devices 9 are arranged approximately centrally within the respective suction channel 11, 12 or 13 and transversely to their longitudinal direction L and at a distance a of 2 to 10 mm from the front or rear channel wall W1 or W2 , As a result, the stripping device 9 flows around from both sides with an air flow (indicated by arrows), which is generated by the application of a negative pressure via a vacuum source U. This ensures that the stripped material does not settle on the surface of the stripping device 9.
- first opening 01 of the respective suction channel 11, 12, 13 is provided with a second opening 02 which faces an opening B1, B2 or B3, which are mounted in a bottom wall 8.
- the bottom wall 8 is, as seen in the conveying direction F, provided on both longitudinal sides with upwardly projecting bends 8a.
- Frame 24 are moved in or against the conveying direction F.
- Spacers may be provided on the bolts 30, 31 between the folds 8a and the frame 24, about a central position (as shown in FIG. 2) of the bottom wall 8 within the frame parts of the frame 24 extending laterally to the bottom wall fix.
- the stripping device 9 is at least partially opposite the rear side wall W2 of the respective suction channel 1 1, or 12 at a distance k of 8 to 20 mm.
- the end of the scraper E projects with its scraper edge K by a certain amount from the respective suction channel 1 1, and 12 out and lies on the circumference Z of the respective roller 3, 5.
- the material scraped off the roller circumference Z moves through the flexibly formed scraper E and under the action of the rotary movement of the roller 3 or 5, indicated by an arrow, into the area behind the scraper (viewed in the conveying direction F) which it is sucked by the, in the suction channels 11, 12 applied suction air flow (see arrow) in the direction of the cover AH.
- FIG. C shows schematically a further embodiment according to FIG. 1 a on the basis of the suction channel 11.
- the wiping device 9 is mounted eccentrically within the suction channel 11 in the embodiment in FIG. 1 c.
- the distance a 'to the front side wall W1 is smaller than the distance a to the rear side wall W2, It would also be possible to reverse the ratios of the distance. This results in different channel cross sections on both sides of the stripping device 9.
- the flow velocity in the region with the smaller distance a ' is greater than the flow velocity in the region with the greater distance a.
- the fibers shown schematically around the wiping edge K of the wiper E can be released again.
- At least one spring element 36 is attached to a mounted between the folds 8a transverse web 33, which coincides with its free End supported on the bolt 30.
- the spring element 36 is designed as a compression spring and causes the bottom wall 8 is moved in the direction of travel F until the slot L1 comes in the position shown in Figure 1 on the pin 30 to the stop.
- the bottom wall 8 is fixed relative to the frame 24 in the position shown ( Figure 1).
- a further transverse web 34 is provided between the folds 8a.
- at this transverse web 34 at least one bellows cylinder 38 is articulated, which, as shown schematically in Figure 1, is mounted on a transverse web 40 of the frame 24.
- the bellows cylinder 38 is acted upon by a pressure source P. If the bellows cylinder 38 is acted upon by compressed air via the pressure source P, then a pressure force is applied to the frame 24 via the transverse web 34, which pushes it against the conveying direction F and against the spring force of the spring 36. During this displacement, the frame 24 is guided over the elongated holes L1, L2 on the bolts 30, 31.
- the suction channels 1 1, 12, 13 are attached to the bottom wall 8, these are also moved with the stripping devices 9 mounted within the suction channels.
- the respective wiping edge K moves away from the surfaces Z of the top rollers 3, 5, 7, as a result of which any deposits in the area of these scraping edges K can be removed and sucked off.
- the bottom wall 8 is returned via the spring force of the spring 36 back in the conveying direction F in its initial position.
- the periodic displacement of the stripping devices 9 can be effected by a corresponding controlled admission of the bellows cylinder 38 at predetermined time intervals.
- covering elements A1, A2, A3 are mounted on the suction channels 1, 12, 13 in the area of the respective second opening 02, which, leaving the respective opening 02 underneath the bottom wall 8 directly or indirectly.
- These cover elements have lateral bends A11, A21, A31, which rest directly or indirectly on the bends 8a of the bottom wall 8.
- the lateral bends A11 and A21 are provided with elongated holes T, through each of which a screw R projects over which the bends A11 and A21 with the Bends 8a of the bottom wall 8 are connected.
- a screw R projects over which the bends A11 and A21 with the Bends 8a of the bottom wall 8 are connected.
- the slots T it is possible - after loosening the screws R - to move the cover elements A1 and A2 relative to the bottom wall 8.
- the foremost pair of rollers 6, 7 (seen in the conveying direction F) is permanently attached. Therefore, the front suction channel 13 is fixedly attached to the bottom wall 8.
- the cover element A3 attached to the suction channel 13 rests directly on the bottom wall 8, the opening 02 of the suction channel 13 and the opening B3 of the bottom wall 8 lying directly opposite one another.
- the cover A3 has lateral bends A31, which rest directly on the lateral folds 8a of the bottom wall 8.
- the bends A31 are fastened by means of screws R to the folds 8a.
- the folds 31 are provided with holes through which the screws R can pass.
- the openings B1 and B2 of the bottom wall 8 - viewed transversely to the longitudinal direction L of the stripping device 9 - to be provided with a width h which is greater than the width e of the second opening 02 of the respective suction channel 11, 12.
- the opening B1, or B2 the openings 02 on both sides, to the extent of the possible adjustment.
- the cover A2 lies directly on the bottom wall 8 (Fig.1a) and extends over the cover A1, which on the cover A2 rests.
- the free passage in each To ensure the position of the suction channel 1 from the second opening 02 of the suction channel 1 1 to the interior 43 of the suction hood AH, the cover A2 is provided in the region in which the cover A1 rests with a further opening B whose width is about the width h the opening B1 corresponds.
- the components which have reached the interior 43 of the exhaust hood AH are transferred under the influence of a vacuum source U connected to the exhaust hood AH into a schematically indicated accumulator S.
- the connection of the vacuum source U takes place at a tubular connection part 10, which is located in an upper region of the suction hood AH.
- the suction hood which rests on the bottom wall 8 via an encircling seal D, projects beyond the openings B1 to B3 of the bottom wall 8 via schematically illustrated fastening means 44 (for example screws), the suction hood AH being fastened to the bottom wall 8.
- the suction hood AH is mounted removable and can be removed at any time, e.g. Perform cleaning work or eliminate faults.
- the suction hood made of transparent material, whereby the monitoring of the interior 43 of the extractor hood is simplified.
- the proposed device made possible by the proposed attachment of provided with stripping and adjustable suction channels intensive extraction of stripped components and a simple adjustment of the device to different delay distances in front or main draft of the drafting system.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00673/14A CH709595A2 (de) | 2014-05-06 | 2014-05-06 | Vorrichtung zum Reinigen von Walzenoberflächen einer Streckwerksvorrichtung. |
PCT/IB2015/000478 WO2015170154A1 (de) | 2014-05-06 | 2015-04-14 | Vorrichtung zum reinigen von walzenoberflächen einer streckwerksvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3140441A1 true EP3140441A1 (de) | 2017-03-15 |
EP3140441B1 EP3140441B1 (de) | 2021-06-16 |
Family
ID=53177699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15722583.0A Active EP3140441B1 (de) | 2014-05-06 | 2015-04-14 | Vorrichtung mit einem streckwerk zum reinigen von walzenoberflächen einer streckwerksvorrichtung |
Country Status (6)
Country | Link |
---|---|
US (1) | US10344405B2 (de) |
EP (1) | EP3140441B1 (de) |
JP (1) | JP6762878B2 (de) |
CN (1) | CN106574408B (de) |
CH (1) | CH709595A2 (de) |
WO (1) | WO2015170154A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108035066A (zh) * | 2017-12-15 | 2018-05-15 | 新昌县开心纺织有限公司 | 一种人造毛皮编织机用罗拉装置 |
DE102018207163A1 (de) * | 2018-05-08 | 2019-11-14 | Dahmen Textilmaschinen Gmbh | Spulenreinigungseinheit |
CN109594156A (zh) * | 2018-11-30 | 2019-04-09 | 湖北德永盛纺织有限公司 | 一种粗纱机 |
DE102019110731A1 (de) * | 2019-04-25 | 2020-10-29 | Saurer Intelligent Technology AG | Saugkanalendteil, Herstellverfahren und Streckwerk umfassend ein solches Saugkanalendteil |
CN110318127A (zh) * | 2019-08-19 | 2019-10-11 | 青岛云龙纺织机械有限公司 | 一种并条机刮板式上清洁装置 |
CN113445167B (zh) * | 2021-07-14 | 2023-09-29 | 浙江坤洲工贸有限公司 | 一种纺织生产用纺织机内部引导罗拉的毛絮自清理机构 |
CN115418757B (zh) * | 2022-08-15 | 2024-01-05 | 陆川恒和纺织科技有限责任公司 | 一种可调节式纺织细纱机 |
CN115418735A (zh) * | 2022-09-02 | 2022-12-02 | 安徽质恒新材料有限公司 | 一种复合纤维拉伸设备 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2006580A1 (de) * | 1969-02-24 | 1970-09-03 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3074121A (en) * | 1956-01-09 | 1963-01-22 | Pneumafil Corp | Roll clearers |
GB872939A (en) * | 1958-12-09 | 1961-07-12 | Ferdinand Reiterer | Improvements in devices for cleaning rollers, more particularly for textile machines |
DE1130336B (de) * | 1958-12-09 | 1962-05-24 | Ferdinand Reiterer | Vorrichtung zum Reinigen der Walzen von Streckwerken an Spinnereimaschinen |
US3101504A (en) * | 1959-09-12 | 1963-08-27 | Luwa Ag | Cleaning device for yarn carrying rotary cylinders of textile machines |
DE1266190B (de) * | 1962-10-25 | 1968-04-11 | Schubert & Salzer Maschinen | Vorrichtung zum mechanisch- pneumatischen Reinigen von Ober- und Unterwalzen an Streckwerken von Spinnereimaschinen |
US3251101A (en) * | 1964-02-06 | 1966-05-17 | Deering Milliken Res Corp | Suction clearer |
US3431717A (en) * | 1966-09-12 | 1969-03-11 | Bahnson Co | Suction flute mounted wiper device for drafting rolls |
DE2527714A1 (de) * | 1975-06-21 | 1977-01-13 | Jacobi E & Co Kg | Vorrichtung zum erfassen eines luntenbruchs in streckwerken |
DE3343483A1 (de) * | 1983-12-01 | 1985-06-13 | Fritz 7347 Bad Überkingen Stahlecker | Oe-friktionsspinnmaschine |
DE3829490A1 (de) | 1988-08-20 | 1990-03-01 | Smrz Peter | Verwendung von meersalz auf der haut zu therapie-zwecken |
JPH02118765U (de) * | 1989-03-10 | 1990-09-25 | ||
DE102004052177B4 (de) * | 2004-10-27 | 2013-10-31 | Rieter Ingolstadt Gmbh | Spinnereivorbereitungsmaschine sowie Gehäuse für ein Streckwerk einer Spinnereivorbereitungsmaschine |
DE102005010769A1 (de) | 2005-03-09 | 2006-09-14 | Rieter Ingolstadt Spinnereimaschinenbau Ag | Vorrichtung an einer Spinnereivorbereitungsmaschine mit einem Streckwerk |
-
2014
- 2014-05-06 CH CH00673/14A patent/CH709595A2/de not_active Application Discontinuation
-
2015
- 2015-04-14 US US15/308,976 patent/US10344405B2/en active Active
- 2015-04-14 WO PCT/IB2015/000478 patent/WO2015170154A1/de active Application Filing
- 2015-04-14 EP EP15722583.0A patent/EP3140441B1/de active Active
- 2015-04-14 CN CN201580023016.7A patent/CN106574408B/zh active Active
- 2015-04-14 JP JP2016566702A patent/JP6762878B2/ja active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2006580A1 (de) * | 1969-02-24 | 1970-09-03 |
Non-Patent Citations (1)
Title |
---|
See also references of WO2015170154A1 * |
Also Published As
Publication number | Publication date |
---|---|
US10344405B2 (en) | 2019-07-09 |
CH709595A2 (de) | 2015-11-13 |
JP2017517642A (ja) | 2017-06-29 |
CN106574408A (zh) | 2017-04-19 |
EP3140441B1 (de) | 2021-06-16 |
US20170073850A1 (en) | 2017-03-16 |
JP6762878B2 (ja) | 2020-09-30 |
CN106574408B (zh) | 2019-11-12 |
WO2015170154A1 (de) | 2015-11-12 |
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