EP0195756B1 - A carding machine having fixed caps with elastic yielding, inclination adjustment, and a lower carding grid - Google Patents
A carding machine having fixed caps with elastic yielding, inclination adjustment, and a lower carding grid Download PDFInfo
- Publication number
- EP0195756B1 EP0195756B1 EP86830069A EP86830069A EP0195756B1 EP 0195756 B1 EP0195756 B1 EP 0195756B1 EP 86830069 A EP86830069 A EP 86830069A EP 86830069 A EP86830069 A EP 86830069A EP 0195756 B1 EP0195756 B1 EP 0195756B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- caps
- card according
- bars
- bar
- 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
Links
- 238000009960 carding Methods 0.000 title description 13
- 239000012535 impurity Substances 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 8
- 239000000835 fiber Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000284 resting effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 241001661918 Bartonia Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/02—Carding machines
- D01G15/12—Details
- D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
- D01G15/24—Flats or like members
Definitions
- the invention refers to cards for the textile industry both for cotton and for wool as well as for synthetic, handicraft, natural, or regenerated material. More particularly, the invention refers to a card comprising a main drum, a feeding cylinder, a doffing cylinder, and fixed caps disposed along the whole drum periphery which is left free by said feeding and duffing cylinders and carrying clothings cooperating with a clothing of the drum, said caps being elastically supported by the frame of the card, so as to allow yieldings thereof in a substantially radial outward direction.
- the main drum of the card is partly surrounded by a plurality of plates or caps which cooperate - through their inner clothings - with the peripheral clothing of the drum.
- the use of cards gives rise to the problem of cleaning the cap clothings, respectively to that of avoiding a heap of waste in the clothings and the problem of the adjustment to avoid a fibre deterioration due to an excess of breakings.
- Travelling caps exist at present - especially for cotton cards - which allow a continuous cleaning of impurities possibly retained by the clothing, and the removal of such impurities; these travelling caps are mostly constructed with chain tracks and have mostly continuous motion , Cards also exist with fixed plate or bar caps, secured to the flanks by adjusting means for the so-called "shimming" (see for example US-A-4 001 917); these types of caps can be deformed because of inaccuracies of the supports; the deformation causes a change in the interspace between the fixed clothing and the mobile clothing and, hence, a disorder in the clothings cooperation and a poorly satisfactory carding.
- the blocked bars or plates tend to break the clotted fibres for separating them with a consequent loss of quality in the material.
- the cards have - along the periphery of the main carding drum - zones free from fixed clothings, that is, from caps, and intended to eliminate waste and impurities; these zones free from clothings - either closed or open and mostly disposed in the lower part of the drum periphery - are unable satisfactorily to perform their task of removing the impurities, and, in addition, they make the card less functional since a portion of the drum periphery is left out from the operation.
- US-A-4,286,357 describes a card according to the preamble of claim 1.
- Each cap of this card is shaped as a plate extending over a substantial arch of the main drum. Between two subsequent plates there is a large free zone where the clothing of the drum is inactive. The caps are applied to the flanks of the machine by elastic means which allow yieldings of the plate.
- the plates have also the possibility of some angular clearance when they are reached by bunches of unopen fibres like waste of rags to be regenerated or other irregularities in the material under work.
- Each plate has a substantial development along the periphery of the drum, so that the elimination of impurities is made difficult. Moreover, the same angular extention of the plates reduces the possibility of angular movement thereof.
- the invention has the purpose of avoiding the above mentioned drawbacks by providing a more effective operation, with caps which allow a better cleaning and discharging (or suction) of impurities, and of better exploiting the circumferential development of the drum.
- the caps disposed along the lower portion of the drum are spaced apart in such a way as to form a grid for the removal of the impurities.
- the bar-shaped caps allow a better cleaning and discharging of the impurities that may be sucked by suction means disposed below or above the drum.
- the impurities are discharged between adjacent bars.
- the limited circumferential extension of the bars allows a better functioning when impurities pass between the clothings of the drum and the caps.
- the disposition of bars along the whole free periphery of the drum, i.e. also along the whole lower portion of the drum allows a more efficient carding also with reduced drum diameters.
- the grid-like disposition of the lower bars do not obstruct the discharging of impurities
- the bars forming the caps are elastically mounted on the frame of the card, excessive stresses in the bars are avoided, as they yield elastically rather than warping under a bending action as they do in case of a rigid anchorage and, on the other hand, damage of the material under work provoked by too violent actions thereon caused by the fixed and mobile clothings is avoided.
- the possible inclination adjustment by the rod adjusting means allows the caps to be set each time in the position which is most suitable to the material under work, in any case assuring its transit and working thanks to the elastic yieldings of the bars, and protecting the longer fibres.
- each rod or bar for the formation of a cap has, towards its ends and at an offset position in respect to the center line, a screw dowel making up sn adjustable pawl for changing the inclination with which the rod rests on the profile of the flank and, at least, an elastic constraint is provided, having guide means, to achieve a possible more or less radial centrifugal displacement as well as an inclination displacemen,1 and elastic means which urge the bar in the centripetal direction, that is, towards the resting surface, with a suitable and even adjustable elastic force.
- Approximately radial guiding columns may be provided for the elastic yielding of the bars in the centrifugal direction.
- the elastic means may consist of helical springs or volute springs or the like, which act along the columns axis and may be arranged around the columns suitably provided with a reaction head; the springs may be of metal, rubber or other construction. It is not excluded the realization of elastic means in the form of pneumatic springs in order to obtain in such a way the possibility of an adjustment - even simultaneous - of all the elastic means of all the bars (or groups of bars) surrounding the drum. In case of metal or rubber or similar springs, screw adjusting means may be provided for the adjustment of the reaction head and/or the placement of shims to be interposed between the bar and the spring.
- a bar for caps may comprise a beam structure able to engage - through a dovetail or an equivalent means - a number of side-by-side packed plates which form the clothing, and two end supports, that are fastened to the beam ends for clamping the plates, said end supports being provided with the inclination adjusting means and with the elastic yielding application means.
- the end supports may have, advantageously, a right angle construction. The presence of clothings along the whole drum periphery increases the productivity and the quality; and the lower, spaced apart, bars have also the function of a cleaning grid.
- numeral 1 indicates the drum provided in the main part of the card, with clothings 3 that receive the fibres from a feeding cylinder 5 and hand them over to a doffer or detaching cylinder 7, the cylinders 5 and 7 being also provided with clothings of traditional type which fulfil their functions and rotate according to arrows f5 and f7, while the drum 1 rotates according to the arrow f1.
- caps are bars-like developed and generally indicated by 10; the caps are mounted on the flanks 12 of the card (see Figs.2 and 3) flanking the drum 1 and have a peripherical resting surface 12A having, substantially, the periphery profile of the carding drum 1.
- the bars are, therefore, disposed along the whole periphery of the drum thereby obtaining a carding action even in the lower zone between the two cylinders 5 and 7; in this zone the bars have also the function of a grid for the removal of impurities and foreign bodies.
- Each bar cap 10 comprises according to Figs.2 to 4, a beam 14 which has a longitudinal dovetail groove 16 on the face facing the clothing 3, so as to receive and engage correspondingly shaped appendices 18A of plates 18 making up the clothing of the cap; the plates 18 are packed in a pile along the beam 14 and are tightened against each other by two right-angle developed end supports 20 which are fixed to the ends of beam 14 by screws 22 for clamping the pile of plates 18 of the cap clothings; the ends of beam 14 are so shaped as to cooperate with the end supports 20 and, in particular, have through holes 24 orientated almost radially in respect to the profile of drum 1 and of the resting surfaces 12A of the flanks 12.
- each of these stems 30 has a head 32 which forms a reaction support for a corresponding helical spring 34 received in the hole 24 and acting on the corresponding support 20; two springs act, therefore, on the bar of the cap 10 to urge it towards the flank 12.
- the force of each spring may be adjusted through a proper setting of the head 32 position and/or by the interposition of shims.
- stem 30 may be fixedly engaged to the flank 12 and the head 32 may be adjustable in respect to the stem, suitable lock nuts being possibly provided.
- a bush 40 is provided, which can slide relative to the support 20 and is encompassed by the spring 34 while the stem 30 goes through the bush 40 to accomplish the function of guiding and adjusting the spring load; numeral 42 indicates a washer providing support for the spring; in this way the angular adjustment of the stem 30, 32 does not entail an angular stress on spring 34.
- the beam 14 has a dovetail projecting part 116 instead of a channel 16 and the plates 118 have each a dovetail indentation instead of the appendix 18A.
- the end supports intended to the bearing of the surfaces 12A of flanks 12 have at least an adjustment screw member 42, with a screw dowel and a possible counterscrew or a lock nut; this dowel 46 makes up an adjustable pawl which is placed at a certain distance from the stem 30, 32 along the surface 12, 12A to allow an adjustment of the bar 10 inclination in respect to the bearing surface 12A and to the tangent of clothing 3, along the zone of cooperation with the clothing of plates 18.
- each bar 10 is capable of being adjusted at least for the inclination on its own clothing in respect to the clothing 3 drum 1, and is also capable of being lifted almost radially in the centrifugal direction in respect to the clothing 3, with elastic yielding of springs 34.
- two dowels or other adjustable abutments may also be provided that can also allow the distance adjustment of the bar and its clothings as well as the inclination adjustment.
- the various bar caps 10 are placed around the drum 1 at a relatively limited mutual distance (see Fig.1) so that they take up or can take up even the whole periphery of the drum, except the zone being occupied by the cylinders 5, 7 and other working members.
- the bars placement is arranged so as to maintain a limited interspace 48 (see also Fig.4) between the clothings formed by the plates 18 of adjacent bars 10; the impurities can escape through these interspaces and, to this end, (that is to facilitate the impurities removal) at least a vacuum zone - being realized, for example, through a suction unit 50 suitably disposed along the drum periphery - may also be provided.
- the compression springs 34 allow the cap to move away from the drum if that is required for any working phase, for example, when a bunch of unopen, that is, packed fibres or waste from regenerated rags, enters the machine.
- each cap moves away as far as it is able to single, that is, to separate, each fibre without breaking it and protecting the clothing both of the drum and of the caps against a rapid wear.
- the slight pressure on the cap allows the fibres to be put perfectly parallel between them without breaking them, since, at each request of a fibre micromovement, the cap adapts itself to these micromovements by protecting the fibre against any breaking or notch formation, by increasing the slipperiness of the fibres and the resistance of the yarn.
- the cap owing also to the possible side register for the inclination, allows to vary the working degree thereof.
- Each cap is provided with plates which do not leave interspaces between a bar and another, which interspaces would create heaps of fibrils together with the unavoidable formation of "neps", thereby deteriorating the quality of the worked material.
- the shaping of the cap permits also to leave interspaces 48 between adjacent caps in the lower zone and gives the possibility to put the machine under depression.
- caps according to the invention it is possible to form a succession of caps for a carding operation as far as 360° of the drum periphery and therefore, this system allows to eliminate the sheet grid under the card, that will be replaced by a group of carding caps, preferably spaced from each other and thereby performing the carding besides functioning as a grid.
- This system permits, therefore, the creating of cards with drums of smaller diameter still obtaining the same carding as with the present-day drums which have much greater diameter.
- the drums having smaller diameter are more economical, absorb less energy and permit the performance of stops rapid and advantageous under the prevention accident aspect.
- Thermal warping is smaller.
- No special cleaning means of known type permits the fibre to escape fully cleared from impurities, whereas the cap being "mobile" and having a special shape, according to the invention, allows the achievement of a perfect cleaning of the fibre through the interspaces between the bars, and, therefore, it is possible to apply bar caps through 360° of the drum perimeter in all types of cards for cotton, wool, chemical, artificial fibres and for regenerated and combed fibres, and in the cards assortment.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT936985 | 1985-03-21 | ||
IT09369/85A IT1201259B (it) | 1985-03-21 | 1985-03-21 | Carda a capelli fissi con cedimento elastico e registrazione di inclinazione |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0195756A2 EP0195756A2 (en) | 1986-09-24 |
EP0195756A3 EP0195756A3 (en) | 1988-01-07 |
EP0195756B1 true EP0195756B1 (en) | 1991-09-11 |
Family
ID=11129102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86830069A Expired EP0195756B1 (en) | 1985-03-21 | 1986-03-20 | A carding machine having fixed caps with elastic yielding, inclination adjustment, and a lower carding grid |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0195756B1 (it) |
DE (1) | DE3681312D1 (it) |
ES (1) | ES8701244A1 (it) |
IT (1) | IT1201259B (it) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102199813A (zh) * | 2010-03-26 | 2011-09-28 | 特鲁菲舍尔股份有限公司及两合公司 | 盖板或罗拉梳理机上有至少一个固定梳理元件的装置 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8614946D0 (en) * | 1986-06-19 | 1986-07-23 | Carding Spec Canada | Carding engines |
DE3811679A1 (de) * | 1988-04-07 | 1989-10-19 | Rieter Ag Maschf | Befestigung fuer einen stationaeren deckel einer karde |
DE3835776A1 (de) * | 1988-10-20 | 1990-04-26 | Rieter Ag Maschf | Karde mit modularer unterteilung der kardierzonen |
DE3902204C2 (de) * | 1989-01-26 | 2003-04-30 | Truetzschler Gmbh & Co Kg | Vorrichtung an einer Karde, Reinigungsmaschine o. dgl. für Baumwollfasern, bei der einer Walze ein Tragelement zugeordnet ist |
GB8903262D0 (en) * | 1989-02-14 | 1989-04-05 | Crosrol Ltd | Flat for a carding engine |
DE59005618D1 (de) * | 1989-12-04 | 1994-06-09 | Rieter Ag Maschf | Verfahren und Vorrichtung zum Reinigen oder Kardieren von Textilfasern. |
EP0532454A1 (de) * | 1991-09-09 | 1993-03-17 | Maschinenfabrik Rieter Ag | Befestigungsvorrichtung für einen stationären Deckel einer Karde |
DE10126737A1 (de) * | 2001-05-31 | 2002-12-05 | Staedtler & Uhl Kg | Garnitur für eine Auflöse-, Sortier- oder Kämmeinrichtung an Textilmaschinen |
DE10140304B4 (de) * | 2001-08-16 | 2014-02-06 | Trützschler GmbH & Co Kommanditgesellschaft | Vorrichtung an einer Karde für Baumwolle, Chemiefasern u. dgl. bei der mindestens ein Deckelstab mit einer Deckelgarnitur vorhanden ist und Verfahren zur Herstellung eines Deckelstabes |
DE10318968A1 (de) * | 2003-04-26 | 2004-11-11 | Trützschler GmbH & Co KG | Vorrichtung an einer Karde, bei der einer Walze, z.B. Trommel, mindestens ein ortsfestes Kardiersegment aus einem Träger mit mindestens zwei Kardierelementen zugeordnet ist |
DE102009042464A1 (de) * | 2009-09-23 | 2011-03-31 | TRüTZSCHLER GMBH & CO. KG | Vorrichtung an einer Karde oder Krempel, bei der mindestens ein Festkardierelement vorhanden ist |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4001917A (en) * | 1974-05-10 | 1977-01-11 | Roy Taylor | Carding apparatus |
US4286357A (en) * | 1977-08-15 | 1981-09-01 | John D. Hollingsworth On Wheels, Inc. | Card cylinder shroud, flat mounting and bearing assembly |
-
1985
- 1985-03-21 IT IT09369/85A patent/IT1201259B/it active
-
1986
- 1986-03-20 ES ES553177A patent/ES8701244A1/es not_active Expired
- 1986-03-20 DE DE8686830069T patent/DE3681312D1/de not_active Expired - Lifetime
- 1986-03-20 EP EP86830069A patent/EP0195756B1/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102199813A (zh) * | 2010-03-26 | 2011-09-28 | 特鲁菲舍尔股份有限公司及两合公司 | 盖板或罗拉梳理机上有至少一个固定梳理元件的装置 |
CN102199813B (zh) * | 2010-03-26 | 2015-02-04 | 特鲁菲舍尔股份有限公司及两合公司 | 盖板或罗拉梳理机上有至少一个固定梳理元件的装置 |
Also Published As
Publication number | Publication date |
---|---|
IT8509369A0 (it) | 1985-03-21 |
IT1201259B (it) | 1989-01-27 |
ES8701244A1 (es) | 1986-12-01 |
ES553177A0 (es) | 1986-12-01 |
EP0195756A3 (en) | 1988-01-07 |
EP0195756A2 (en) | 1986-09-24 |
DE3681312D1 (de) | 1991-10-17 |
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