EP0481302A2 - Grille pour un cylindre d'ouverture d'un métier à filer - Google Patents

Grille pour un cylindre d'ouverture d'un métier à filer Download PDF

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Publication number
EP0481302A2
EP0481302A2 EP91116934A EP91116934A EP0481302A2 EP 0481302 A2 EP0481302 A2 EP 0481302A2 EP 91116934 A EP91116934 A EP 91116934A EP 91116934 A EP91116934 A EP 91116934A EP 0481302 A2 EP0481302 A2 EP 0481302A2
Authority
EP
European Patent Office
Prior art keywords
grate
fiber
roller
grate bar
cleaning
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.)
Withdrawn
Application number
EP91116934A
Other languages
German (de)
English (en)
Other versions
EP0481302A3 (en
Inventor
Robert Demuth
Jürg Faas
Lukas Hiltbrunner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0481302A2 publication Critical patent/EP0481302A2/fr
Publication of EP0481302A3 publication Critical patent/EP0481302A3/de
Withdrawn legal-status Critical Current

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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
    • D01G15/34—Grids; Dirt knives; Angle blades
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/14—Details of machines or apparatus
    • D01G9/20—Framework; Casings; Coverings; Grids

Definitions

  • the invention relates to a grate for an opening roller of a spinning machine, for example a cleaning machine or a card, according to the preamble of the first claim.
  • a spinning machine for example a cleaning machine or a card
  • opening rolls are also referred to as beaters.
  • Gratings for such machines are known per se, for example, shows the Swiss patent no. 464 021 or the cleaning machine of the type ERM B5 / 5 sold by the applicant shows a foldable grate to which a number of knives are attached, by means of which dirt from the cotton is removed, which is guided past these knives with the help of an opening roller provided with teeth (also called sets).
  • the knives have adjustable baffles on the back, so that with the help of the adjustability of these baffles, the guidance of the cotton on the sets of the opening roller can be adjusted from knife edge to knife edge in such a way that an adjustable separation of dirt occurs from knife to knife.
  • the knives themselves, however, are rigidly attached to the grate.
  • the grate is designed to pivot away from the opening roller.
  • the English patent application No. 2 053 995 shows and describes furthermore the possibility of adjusting pivotable knives with the aid of a grate in such a way that their angle of attack can be changed relative to the circumference of the opening roller.
  • the knives are pivotally mounted on stationary pivot axes at their front end part, on which the knife edge is located, while the rear End part is pivotally mounted in the grate, so that by moving the grate in the circumferential direction of the opening roller, the angle of attack of the knives to the opening roller circumference (also called impact circle) can be changed.
  • the object was achieved by the measures listed in the characterizing part of the first claim.
  • the grate bar modules are interchangeable through a modular design, and on the other hand, an adjustability of the entire grate relative to the surface of the opener roller and an adjustability of the grate bar modules in the grate provide optimal adaptability to the cotton to be cleaned, in order to achieve this Gently remove dirt but still largely.
  • the invention will now be shown and described on the basis of figures which represent embodiments.
  • FIG. 1 shows a cleaning machine 1 with a feed shaft 1a, which releases flake material into a converging gap between a blind drum 2 and a sieve drum 3, the latter sucking air out of the fed-in cotton.
  • This deaerated cotton is guided as a fiber mat M to a take-off roller 4 and from there into a further converging gap between a feed trough 5 and a feed roller 6 and fed to an opening roller 7 by means of this feed roller 6.
  • This opening roller 7, with the teeth 8 provided on its surface takes over the fibers fed in, which in a manner known per se creates a fiber layer in the form of a nonwoven fabric on the surface of the teeth 8.
  • this nonwoven has the tendency to be carried away from the teeth 8, which is why this fiber layer, before it is led to a first grate bar module M1, depending on the distance between the feed roller 6 and the first one Module M1, by means of a guide surface 41 located in front of the first cleaning module M1 (viewed in the direction of travel D of the opening roller 7) and thereby prevented from being flung away.
  • the fiber layer is, as shown in Fig. 1, then on a series of, arranged in a predetermined order cleaning elements resp.
  • Grid bar modules passed, which are labeled M1, M2, M3 and M4.
  • the grate bar modules M.1 are a grate bar 48 provided with end flanges 79 with a separating edge 77 and a guide surface 76, while the grate bar module M2 is a set bar with end flanges 80 and a set of teeth 49.
  • the grate bar module M3 contains a blowing nozzle 69 provided with end flanges 81 and a blown air socket 83, while the grate rod module M4 is a so-called turning element 41, described later and provided with end flanges 82 and a suction socket 47.
  • the grate rod modules M1, M2, M3 and M4 are either rigidly and / or pivotally received in a grate 9, which will be explained in more detail in the course of the further description.
  • the grate 9 has two grate frames 9a, only one shown in FIG. 1, between which the grate rod modules M1 to M4 are fixed rigidly and / or pivotably, the flanges 79, 80, 81 and 82 of the grate rod shell M1 to M4 lying on the inner surface 84 (FIGS. 2 and 32) of the grate frame 9a.
  • the grate frame 9a, and thus the grate 9, are pivotally mounted by means of a pivot axis 10, the ends of which are each pivotably mounted in a bearing ring 24 and in a bearing ring 25.
  • the bearing ring 24 is attached to a tappet 23 of an adjusting motor 21 and on the other hand the bearing ring 26 is attached to a tappet 25 of an adjusting motor 22.
  • the adjustment motor 21 is in turn pivotally connected to a stationary support 27 and the adjustment motor 22 is pivotally connected to a stationary support part 28.
  • the adjusting motors 21 and 22 and thus the degrees of freedom X and Y are, as shown in FIG. 1, arranged essentially at right angles to one another in order to be able to carry out the movement of the grate 9 described later.
  • each grate frame 9a has a guide cam 11 with a guide surface 12, on which a guide roller 13 bears, which is part of an adjustment mechanism 14.
  • the guide roller 13 is rotatably attached to a pivot lever 15 which in turn is pivotally received by a stationary pivot bearing 17 by means of a pivot axis 16.
  • a pivot lever 15 At the end of the pivot lever 15 opposite the guide roller 13, the latter is pivotally connected to a tappet 18 of an adjustment motor 19.
  • the adjusting motor 19 is in turn pivotally attached to a stationary support element 20.
  • the dirt separated from the cotton is received by a collecting trough 29 and passed on to a lock 30 which feeds this outlet to a pneumatic transport 31, while the fleece guided by the opening roller 7 past the grate bar modules after the last grate bar module, seen in the running direction of the opening roller, is taken over by a pneumatic conveying air flow L.
  • a flap or other lock could also be used.
  • FIG. 1 shows the modularity of these grate bar modules according to the invention with the sequence of the grate bar modules M1, M2, M3 and M4 shown, which should be understood as a possible variant in the manner shown in FIG. 1.
  • two grate bar modules M1 each with a grate bar 48, are followed by a grate bar module M2 with a set of teeth 49 analogous to a set bar, for example a carding set bar, then again a grate bar module M1 with a grate bar 48, followed by a grate bar module M3 with a blowing nozzle 32, then a grate bar module M4 with a turning element 41.
  • this turning element M4 two grate bar modules M1, then a grate bar module M2 and again three grate bar modules M1 are provided.
  • the fiber layer located on the teeth 8 of the opening roller 7 reaches and becomes into this air flow L due to the centrifugal force and due to a sucked-in air flow then captured by suction pneumatics 42 and fed to the next machine.
  • a filled circle (or circular point) identified by 33 is intended to represent a fixed connection of a pivoting lever 42 (identified only once in FIG. 1) to a grate bar module M1 and at the same time a pivot axis of the pivoting lever 42 and the grate bar module, so that when it is pivoted Pivot lever 42, the grate bar module M1 is pivoted about this pivot axis 33.
  • the position of the module M1 on the pivot axis 33 is fixed by means of a fixing screw 75 (FIGS. 5 and 6).
  • each pivot lever 42 is pivotally connected to a power transmission lever 36 by means of an articulation point 35.
  • the last of the articulation points 35 seen in the direction of rotation of the opening roller 8, pivotally connects the preceding force transmission lever 36 to a plunger 37, an adjusting motor 38, which in turn is pivotally connected to a stationary carrier element 39. Since all of the power transmission levers 36 are connected to one another by means of the articulated points 35, all of the power transmission levers 36 simultaneously move the plunger 37, so that all grate bar modules which have a fixed connection 33 to the pivoting lever 42 are pivoted.
  • empty circles marked with 34 are shown, which merely indicate that the grate bar module, for example M2, M3 and M4, does not coincide with the swivel axis 33 and thus also not with the The pivot lever 42 is connected and that the pivot axes 33 and the pivot levers 42 are only required so that the power transmission can function via all the power transmission levers 36.
  • the fixed grate bar modules M2, M3 and M4 are firmly connected to the grate frame 9a by means of a screw 43 screwed into the respective flange 80, 81 or 82.
  • the screw 43 is guided in a guide slot 68 provided in the grate frame 9a and directed radially to the axis of rotation of the opening roller 7, so that the position of these grate bar modules within this slot can be changed.
  • the angle ⁇ can also be greater than 90 °, or in order to arrange the tooth set 49 in such a way that the distances E1 and E2 from the tooth tips of the set 49 to the impact circle 44 containing the tooth tips of the opening roller are not the same everywhere, or in order to arrange the grate bar module M4 in such a way, that the distances D1 and D2 at the edges of a turning surface 46 are unequal with respect to the impact circle 44.
  • the grate arches 9a have sufficiently long guide slots 68.
  • the grate bar modules M2, M3 and M4 could also be arranged pivotably like the modules M1, or vice versa.
  • the impact circle 44 and the guide surface 76 of the grate bars 48 are shown schematically as a straight line. It is therefore understood that the guide surface 76 is curved analogously to the shown curvature Z of a surface that contains the tooth tips of the clothing 49 in a manner that is similar to the needs.
  • the adjustment mechanism 14 offers the possibility of pivoting the grate 9 about the pivot axis 10 and, independently of this, using the adjustment motors 21 and 22 to move the pivot axis 10 in an XY plane. In the simplest case, the pivot axis 10 is provided stationary.
  • adjustment motors can be commercially available adjustment motors.
  • the peculiarity of the adjustment motor 19 or the entire adjustment mechanism 14 also consists in that on the one hand this adjustment mechanism 14 has to change very small movements in the range of tenths of a millimeter by the distances mentioned, on the other hand it has to perform a large movement shown in FIG. 8 in order to fold it down (with a view seen in Figure 8) to allow the grate 9.
  • FIG. 2 shows a part of the top view according to section lines I, accordingly the same parts are provided with the same reference numerals.
  • FIG. 3 shows the fastening of a grate bar module, for example M2, more clearly by means of the screw 43.
  • the joints 35 are shown more clearly, in which it is shown that for each joint one ring 35a or 35b is connected to a force transmission lever 36 and on the other hand these rings 35a and 35b are pivotably mounted on the pivot lever 42. The axial displacement of these rings 35a and 35b on the lever 42 is prevented by locking rings 45.
  • Figure 4 shows a view of the part of Figure 3 in the direction II, the same elements are provided with the same reference numerals.
  • 4 shows, in addition to the guide slots 68 also shown in FIGS. 1 and 8, provided in the grate frame 9a, and also with a broken line 69, a recess 69, which is provided in all flanges 80, 81 and 82 of the grate bar modules M2, M3 and M4 is to enable the movement of these modules in the previously mentioned frame around the pivot axis 34.
  • FIGS. 5 and 6 each show two grate bar modules M1 shown enlarged, the grate bar modules of FIG. 6 having an angle of attack ⁇ 2 which is smaller than the angle of attack ⁇ 1 and a clearance angle ⁇ 2 which is greater than the clearance angle ⁇ 1 of the grate bar modules of FIG. 5.
  • the angle of attack ⁇ is formed by a guide surface 74 and the impact circle 44 shown as a straight line in these figures, while the clearance angle ⁇ is formed by the impact circle 44 and the guide surface 76 shown simply as a straight line in FIGS. 5 and 6.
  • the guide surface 74 serves to guide the dirt detached from the nonwoven fabric.
  • the position of the pivot shaft 33 in the region of the left corner of the grate bar module shown, viewed with a view of the figure, means essentially on the same side of the grate bar module that contains the knife edge 75, that when pivoting the grate bar module about the axis of rotation of the pivot shaft 33 ar on the one hand the clearance angle ⁇ widens from ⁇ 1 to ⁇ 2 and the distance B from B1 to B2, while on the other hand the distance A.2 is not significantly greater than A.1, ie is practically not changed, so that the distance A1 set with the aid of the adjustment of the grate 9 is changed only negligibly by said pivoting.
  • the flange 79 has an extension 85 (dash-dotted line), so that there is the possibility of bringing the pivot shaft 33 centrally onto the side line 86, so that the clearance angle ⁇ takes on the smallest value when the side line 86 is radial to the impact circle 44 .
  • the grate bar module M3 and M4 is shown enlarged in FIG. 7, the grate bar module M3 including the previously mentioned blow nozzle 32 and a blow air nozzle 83 and extends over the entire length of the opening roller 7.
  • a guide surface 78 of this blowing nozzle forms an angle ⁇ with the impact circle, which can also be greater than 90 °.
  • the slot 68 and the recess 69 can also be seen here.
  • the grate bar module M4 shows the previously mentioned turning element 41 with the perforated, so-called turning surface 46 and with the intake port 47, which sucks in air through the perforated turning surface 46 and thereby causes the fiber layer to turn around, as in the previously mentioned Swiss patent application No. 2980/90 to be fed to the next cleaning grate bar modules in such a way.
  • the module M4 also has the slot 68 and the cutout 69 mentioned earlier.
  • FIG. 8 shows a variant of the pivotable suspension of the grate frames 9a.1 compared to the suspension of the grate frames 9a, in which instead of the pivot axis 10 of Figure 1, the grate frame 9a.1 in the Y direction, as seen in Figure 8, from a guide roller 63 and in the X direction, with a view of FIG. 8, is stabilized by a guide roller 62 or is held in the corresponding directions.
  • each guide roller 62 is each guided in a slot 64 provided in the frame 9a.1 and each roller 63 is each guided in a slot 65 provided in the same frame.
  • the roller 62 is part of an adjustment mechanism 50 and the roller 63 of an adjustment mechanism 51.
  • the adjustment mechanism 50 further includes an adjustment motor 52 with a plunger 60 which is pivotally connected to a pivot lever 54 which is connected on the one hand to the guide roller 62 and on the other hand by means of a pivot axis 56 on a stationary one Support member 58 is pivotally received.
  • the adjusting motor 52 itself is pivotally connected to a stationary support element 66.
  • the adjustment mechanism 51 in turn has an adjustment motor 53 with a plunger 61 which is pivotally connected to a pivot lever 55, at the other end of which the guide roller 63 is provided.
  • the pivot lever 55 is pivotally received on a stationary support element 59 by means of the pivot axis 57 and the motor 53 is pivotably connected to a stationary support element 67.
  • the grate 9.1 can be moved in the X and Y directions, as seen in FIG. 1, so that the distances mentioned earlier can be changed.
  • FIG. 9 shows the use of the grate 9 according to the invention on a beater 70 of a card 71.
  • the same elements therefore have the same reference numerals.
  • a fiber wad W is fed in by means of a feed trough 72 and a feed roller 73.
  • FIG. 10 shows the possibility of using a grate bar module M0 instead of a grate bar module M1, as shown in FIG. 9, which has a movable retention surface 87 due to the mobility of the grate bar module M0.
  • the restraint module M0 can either be arranged fixedly with the screw 43 as shown in FIG. 10, or, as shown in FIG. 11, can be arranged movably analogously to the grate bar module M1.
  • FIG. 12 shows, instead of the grate bar module M0, a tension spring 88 which is connected to an articulation point 35, so that there is a permanent tension in the force transmission lever 36. This has the advantage that the movement generated by the adjusting motor 38 takes place with virtually no play.
  • the grate 9 has a retention element (not shown) which is stationary relative to the grate 9 and connects both grate frames 9a and has a retention surface 91.
  • the retention surfaces 87 and 91 serve to guide the fibers in the tooth set of the opening roller 7 and. of the breeze 70.
  • FIG. 13 shows, with an articulation point 35.1, a variant of the articulation point 35 of the preceding figures, in which this articulation point 35.1 has a so-called cutting-socket mounting, in which the pivot lever 42.1, a cutting edge 89 and the articulation point 35.1a and 35.1b each have one Have pan 90.
  • This variant can be used if, as shown in FIG. 12, a tension spring 88 is used in combination with the adjusting motor 38, since there is always a tension in the power transmission levers 36. This train presses the pan 90 against the cutting edge 89 and since such a bearing is practically free of play, the power transmission through the power transmission lever 36 is also free of play.
  • FIGS. 15 and 16 show FIGS. 3 and 4 from Swiss patent application no. CH-2812 / 90-1 without, however, the identifiers used in this Swiss patent application, but for the sake of simplicity only the essential reference numerals necessary for the following description are used in order to address the points essential for this registration.
  • the Swiss patent application no. CH-2812 / 90-1 forms an integral part of this application.
  • FIG. 15 shows a feed tray plate 100 with the feed tray 5 which can be displaced in the displacement direction V.
  • a clamping gap P is shown, which is formed by the narrowest point between the feed roller 6 and the feed trough 5.
  • This clamping gap P also forms the fiber transfer point for the fiber wadding Q, while the fiber transfer point U is at the narrowest point between the feed roller 6 and the tooth tips of the teeth 8.
  • the displaceability of the feed plate 100 in the displacement directions V makes it possible to change the distance between the clamping point P and the takeover point U and thus to adapt it to the fiber length to be processed.
  • the pressure in the clamping point P is generated by means of the pressing device 102, in which the feed roller 6 is rotatably and drivably mounted on a pivot lever 104 which is pivoted by the pressing device 102.
  • FIG. 16 shows a variant of the swiveling of the trough plate, in which the trough plate 101 by means of a displacement element 105 about the axis of rotation of the feed roller 6, i.e. is displaceable in the displacement directions V and is also pivotably mounted on the displacement element 105 in a pivot axis 106, so that the pressure in the clamping gap P can be generated by means of a pressing device 103.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP19910116934 1990-10-16 1991-10-04 Grid for an opening roller of a spinning machine Withdrawn EP0481302A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH331890 1990-10-16
CH3318/90 1990-10-16

Publications (2)

Publication Number Publication Date
EP0481302A2 true EP0481302A2 (fr) 1992-04-22
EP0481302A3 EP0481302A3 (en) 1992-09-02

Family

ID=4253397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910116934 Withdrawn EP0481302A3 (en) 1990-10-16 1991-10-04 Grid for an opening roller of a spinning machine

Country Status (3)

Country Link
US (1) US5247721A (fr)
EP (1) EP0481302A3 (fr)
JP (1) JPH04263618A (fr)

Cited By (9)

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Publication number Priority date Publication date Assignee Title
DE19630018A1 (de) * 1996-07-25 1998-01-29 Rieter Ag Maschf Anlage zum Verarbeiten von Fasern
EP0848091A1 (fr) * 1996-10-18 1998-06-17 Maschinenfabrik Rieter Ag Appareils pour enlever des impuretés
EP0894877A3 (fr) * 1997-07-30 2000-04-19 Maschinenfabrik Rieter Ag Appareil d'extraction de souillure pour agregats de nettoyage de fibres
US6212737B1 (en) 1996-05-20 2001-04-10 Maschinenfabrik Rieter Ag Plant for processing fibers
RU2276208C1 (ru) * 2004-11-30 2006-05-10 Лукинов Александр Николаевич Устройство для обогащения волокна лубяных культур
ITPO20110020A1 (it) * 2011-09-22 2013-03-23 Ommi S R L Apritore perfezionato di materiali tessili
CN103696044A (zh) * 2013-12-25 2014-04-02 吴江市恒艺丝绸整理厂 一种皮棉清理机
CN111172630A (zh) * 2020-03-12 2020-05-19 雷银霞 一种弹拉式开棉机
CN113215687A (zh) * 2021-05-07 2021-08-06 阳谷森博机械有限公司 一种短绒清硬设备模块式组合方法

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EP0894878A3 (fr) 1997-07-30 2000-04-19 Maschinenfabrik Rieter Ag Nettoyeur de flocons
CN100469956C (zh) * 2003-12-09 2009-03-18 苏拉（金坛）纺织机械有限公司 精开棉机(fa111e型)
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CN101092762B (zh) * 2006-06-20 2010-09-08 苏拉（金坛）纺织机械有限公司 一种单轴流开棉机尘格隔距手动调节装置
DE102012012254A1 (de) * 2012-06-22 2013-12-24 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Spinnereivorbereitungsmaschine, z. B. Reiniger, Karde o. dgl., zum Öffnen und Reinigen von Fasergut
US10531612B2 (en) * 2017-05-23 2020-01-14 Deere & Company Releasable grid bars for a cotton cleaner
CN109881258B (zh) * 2019-04-16 2024-06-25 山东天鹅棉业机械股份有限公司 格条栅、格条间隙调整机构及籽棉清理机
CN111647976A (zh) * 2020-06-03 2020-09-11 营口市新艺纺织有限责任公司 一种大麻二粗高效除杂机

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6212737B1 (en) 1996-05-20 2001-04-10 Maschinenfabrik Rieter Ag Plant for processing fibers
DE19630018A1 (de) * 1996-07-25 1998-01-29 Rieter Ag Maschf Anlage zum Verarbeiten von Fasern
EP0848091A1 (fr) * 1996-10-18 1998-06-17 Maschinenfabrik Rieter Ag Appareils pour enlever des impuretés
EP0894877A3 (fr) * 1997-07-30 2000-04-19 Maschinenfabrik Rieter Ag Appareil d'extraction de souillure pour agregats de nettoyage de fibres
RU2276208C1 (ru) * 2004-11-30 2006-05-10 Лукинов Александр Николаевич Устройство для обогащения волокна лубяных культур
ITPO20110020A1 (it) * 2011-09-22 2013-03-23 Ommi S R L Apritore perfezionato di materiali tessili
CN103696044A (zh) * 2013-12-25 2014-04-02 吴江市恒艺丝绸整理厂 一种皮棉清理机
CN111172630A (zh) * 2020-03-12 2020-05-19 雷银霞 一种弹拉式开棉机
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