EP0683254A1 - Appareil de levée automatique de rouleaux de nappe à mandrin creux d'un cantre d'une carde condenseuse - Google Patents

Appareil de levée automatique de rouleaux de nappe à mandrin creux d'un cantre d'une carde condenseuse Download PDF

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Publication number
EP0683254A1
EP0683254A1 EP95101571A EP95101571A EP0683254A1 EP 0683254 A1 EP0683254 A1 EP 0683254A1 EP 95101571 A EP95101571 A EP 95101571A EP 95101571 A EP95101571 A EP 95101571A EP 0683254 A1 EP0683254 A1 EP 0683254A1
Authority
EP
European Patent Office
Prior art keywords
hollow lap
lap roller
hollow
rod
doffing
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
Application number
EP95101571A
Other languages
German (de)
English (en)
Other versions
EP0683254B1 (fr
Inventor
Pietro Ramella
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.)
OFFICINA MECCANICA RAMELLA PIETRO Srl
Original Assignee
OFFICINA MECCANICA RAMELLA PIETRO Srl
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 OFFICINA MECCANICA RAMELLA PIETRO Srl filed Critical OFFICINA MECCANICA RAMELLA PIETRO Srl
Publication of EP0683254A1 publication Critical patent/EP0683254A1/fr
Application granted granted Critical
Publication of EP0683254B1 publication Critical patent/EP0683254B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D01G27/00—Lap- or sliver-winding devices, e.g. for products of cotton scutchers, jute cards, or worsted gill boxes
    • D01G27/04—Lap- or sliver-winding devices, e.g. for products of cotton scutchers, jute cards, or worsted gill boxes with automatic discharge of lap-roll or the like
    • 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
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/0405—Arrangements for removing completed take-up packages or for loading an empty core
    • 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
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
    • D01G15/62—Slubbing-winding apparatus
    • 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
    • B65H2701/311—Slivers

Definitions

  • a so-called "splitting" element which operates to split the carded fibre web into a plurality of rovings, so as to provide the latter with a slight consistence by means of a crocking or rubbing operation.
  • a plurality of rovings are wound on the individual hollow lap rollers which are rotatively driven by a hollow lap roller cylinder.
  • the number of hollow lap rollers on each of the superimposed levels or planes of hollow lap rollers can vary, while the number of superimposed planes used at present is either 4 or 6.
  • Such an operating sequence comprises the following operating steps:
  • the aim of the present invention is to provide such a device which is adapted to automatically perform: the above disclosed full hollow lap roller doffing operation, which at present requires a great amount of time and labour; an automatic locating of the full hollow lap rollers on a transport carriage or other like means as well as an immediate loading of the empty hollow lap rollers, so as to provide a great economic advantage since there is not necessary to provide an operator for performing the doffing step and there being moreover obtained an advantageous evenness of the hollow lap roller filling-in operation, with a great reduction of the spinning waste.
  • each hollow lap roller being filled-in is supported and guided at the two end portions thereof by two swinging or hunting arms.
  • These arms are each provided, at the end of the supporting rod included in said swinging arm, with a recess for receiving the pin of the hollow lap roller, the rod of each swinging arm being associated with an ejecting element provided with a rack adapted to be longitudinally displaced, with a slipping contact, within a slot formed in the wall of said rod.
  • the end of said ejecting or expeller element abuts against the pins of the hollow lap roller, so as to allow the latter, at a set time, to be removed from the rod receiving recesses of said swinging arms.
  • the hollow lap roller filled-in by rovings is successively taken up by a doffing element with a closed loop path provided with gripping hook elements which are driven in a substantially quadrangular path in order to raise a full hollow lap roller by depositing it on the cradles of a transport carriage.
  • Said hook elements as they continue their movement, will push ahead, with a slight braking action, a subsequent empty hollow lap roller by causing the latter to slide on guides at the end of which a locating element will deposit the empty hollow lap roller in said swinging arm rod recesses, at a filling-in position.
  • each hollow lap roller for ejecting a pressurized air blow, which are intermittently driven to push said roving ends toward the center of the hollow lap roller where the rovings are clamped between the driving hollow lap roller cylinder and the hollow lap roller to be filled-in, the latter being forcibly held in contact with said hollow lap roller cylinder by means of a permanent magnet drawing the hollow lap roller supporting swinging rods so as to press said hollow lap roller, for a limited time period, against the hollow lap roller cylinder.
  • FIG. 1 schematically illustrates a hollow lap roller assembly A, which is herein extended on four planes, in which each hollow lap roller 4 of each plane is provided with a device according to the invention.
  • a plurality of rovings 1 coming from a carded web splitting element (not shown), are supplied onto the hollow lap roller cylinder 2 through a driving rod 3 provided with separating curved elements 31 to be wound on the hollow lap roller 4 of which the hollow lap roller cylinder 2 constitutes a rotary driving element.
  • the return rod or bar 3 in particular, (see Figure 13), is reciprocated correspondingly to the pitch between two subsequent curved elements 31 in order to provide and even distribution of each roving to a plurality of adjoining rolls the number of which corresponds to the number of the rovings.
  • the main element assemblies included in the device according to the invention comprise, for each hollow lap roller: a pair of driving and supporting movable means 5 each comprising, in a mutually associated relationship, a supporting rod 51 and an ejector element 52 for ejecting a full hollow lap roller 4; a pair of doffing elements 7, provided with a closed loop path, and including gripping hook elements 71 which, in the following disclosure, will be indicated at 71a, b, c, d, exclusively for indicating the positions thereof; a pair of locating elements 9 for locating the empty hollow lap rollers 4' to be filled-in, which are operatively connected to sliding guides 90 for driving said empty hollow lap rollers 4'.
  • Figures 3 to 9 illustrate, by a sequence, the several steps of the operation cycle starting from the ejection of a full hollow lap roller 4 ( Figures 3 to 8) and with the simultaneous supplying of an empty hollow lap roller 4' ( Figures 5 to 8) and further supplying of a further empty hollow lap roller 4'' ( Figures 8A and 9).
  • Figure 3 illustrates the movement of the ejecting element 52 of the driving movable means 5, which in this preferred embodiment will be called swinging arm.
  • the movement of the ejecting element 52 is controlled by a pinion 53.
  • Said ejecting element will advance and impact against the pins 41 of the filled-in hollow lap roller 4, so as to cause the latter to fall on the pair of hook elements 71 of the closed loop doffing element 7, coming in their path about said element 7 according to the movement direction indicated by the arrow S.
  • the hook elements 71 arranged at the position 71b support the full hollow lap roller 4 and start the deposition path on a carriage or truck 100, as it will become more apparent hereinafter, whereas the swinging arm 5, from which the full hollow lap roller 4 has been removed, will fall under the weight thereof, on the hollow lap roller cylinder 2 which is ready for receiving an empty hollow lap roller 4'; the ejecting element 52 is still, at this point, fully forwardly pushed.
  • the full hollow lap roller 4 continues its path toward the depositing carriage; in this step, the ejecting element 52 is withdrawn by the pinion 53 so as to disengage the slot 56 for housing the pin 41 of the empty hollow lap roller 4'.
  • the roving 1 is entrained between the full hollow lap roller 4, on a side, and, on the other side, between the empty hollow lap roller 4' and the hollow lap roller cylinder 2.
  • the full hollow lap roller 4 is arranged on the end portion of the top horizontal span of the closed loop doffing element 7 and is caused to stop; the roving 1, supplied by the cylinder 2, is brought to a loosened condition.
  • Figure 9 illustrates the step in which the hook element 71 recovers its movement, after having doffed the full hollow lap roller 4 on the carriage 100 and after having pushed another subsequent empty hollow lap roller 4'' on the arm 91 of the locating element 9, by stopping at the position 71a whereas the hollow lap roller 4' will be continuously filled-in.
  • each pair of swinging arms 5 comprises a rod 51, a rear end 510 of which is clamped between a pair of bearings 512 engaged in bushings 513 which are longitudinally locked by nuts 554 and middle spacers 555.
  • the rod 51, and, accordingly, the overall swinging arm 5, can therefore swing freely on a shaft 55 mounted on a bearing 551 in turn supported by a fixed support 552.
  • the front end 511 of the rod 51 which supports the hollow lap roller 4 is beveled in order to facilitate the locating of the pin 41 of the hollow lap roller, and is provided with an open slot 56 a wall of which is formed by an insert of a resilient foil 561 which allows said slot to be resiliently fitted to said pin 41 of the hollow lap roller 4.
  • the ejecting element 52 which, in its rearmost position, has the front end 520 thereof arranged near the bottom of the slot 56 of the rod 51, whereas the rear end 521 is provided with a rack 522 and meshing with a pinion 53 rigidly formed on one of the bushings 513 torsionally connected to the shaft 55 by a key 532.
  • the ejecting element 52 slides by its side ribs 523 in a slot 514 of the rod 51 of the swinging arm 5 and is connected and held adherent to the rod 51 by a guide pin 515 which can slide in a slot 524 of the ejecting element 52.
  • the empty hollow lap roller locating element 9 is arranged in the gaps between two subsequent segments 2' and 2'' of the hollow lap roller cylinder 2.
  • Each of the arms 91 and 91' of said locating element serves for the adjoining hollow lap roller, the other necessary symmetrical arm being arranged in the subsequent gap between two adjoining hollow lap rollers.
  • Each arm 91, 91' is connected to a disc 92 provided with teeth and which can independently turn on bearings 93 keyed on the shaft 22 of the hollow lap roller cylinder 2.
  • Each tooth arrangement of the disc 92 meshes with a pinion 94 in turn keyed on a shaft 95 parallel to the shaft 22 of the hollow lap roller cylinder 2. Accordingly, the shaft 95 will form the drive element of the arms 91 of the locating element 9, provided for loading the empty hollow lap roller at a set time, as it will be disclosed hereinafter.
  • the gear assembly 92, 94 is preferably protected within a casing (not shown).
  • each pair of hook elements 71 of the doffing element 7 (see Figures 8A and 9) will impact against the pins 41'' of a new empty hollow lap roller 4'' supplied after the doffing of a preceding full hollow lap roller and will push said empty hollow lap roller toward swingable arms 91 of the locating element 9, so as to cause said hollow lap roller to slide, in a slightly braked manner, by known means, on substantially horizontal guides 90 (position 71A of Figure 9).
  • pressurized air blowing nozzles 150 have been provided, as shown in Figure 13, said nozzles being suitably oriented and controlled, and being arranged at the gaps between two subsequent hollow lap rollers 2 and 2' and conveying the rovings, driven between the curved elements 31, toward the center of the hollow lap roller so as to prevent the rovings from accumulating on the pivot pins 41.
  • This magnet ( Figure 14A) operates to press the swinging arm 5, and together it the empty hollow lap roller, against the cylinder 2 for a set time allowing the winding of the rovings to be safely started, and, then, as shown in Figure 14B, the magnet will be switched-off for removing the swinging arm and the winding operation of the hollow lap roller being performed in a regular manner.
  • the working cycle starting from the doffing of a full hollow lap roller, is controlled by suitable controls derived from the main electric driving or controlling unit of the device according to the invention.
  • the repetitive operating cycle is started by a doffing disc D1 provided with microcontacts, a full revolution of which will be controlled by a timer T1 calibrated on a desired full filling-in of a hollow lap roller.
  • This disc will further control other discs D2 and D3 respectively provided for loading the hollow lap rollers as performed by the locating element 9 and for actuating the ejecting element 52 of the swinging arm 5.
  • the starting of the operating cycle begins from the disc D1 with the contact C10 which drives the disc D3 and starts a timer T1 and a timer T2.
  • the disc D3 will cause the full hollow lap roller to be ejected (shaft 55, pinion 53, ejecting element 52), whereas the timer T1 will drive or actuate the doffing element 7 which will cause the hook element 71 to be driven from the position 71a ( Figure 9) to the position 71b ( Figure 4) in order to receive the hollow lap roller being ejected through the disc D3.
  • the hook element 71 will stop at the position 71c ( Figure 6).
  • the timer T2 will actuate the disc D2 for loading an empty hollow lap roller 4' (arms 91) and starting the air blows or jets 150.
  • the disc D3 in turn, will cause, by a contact C30, the ejecting element 51 to be withdrawn, and then another contact C31 will stop said disc D3.
  • the disc D2 Upon starting the winding operation of the new hollow lap roller, the disc D2, by a contact C20, will perform movements opposite to the preceding movements by shutting off the air jets and causing the arms 91 of the locating element 9 to be returned to their rest position. Another contact C21 will cause the disc D2 to stop.
  • the disc D2 by the contact C20, will also actuate again the disc D1 which, in turn, by a contact C2, will drive the doffing device 7 so as to cause the hook element 71 to stop at the position 71d ( Figures 8 and 8A) and will moreover start a timer T3 for a pause period in which an operator will remove the carriage 100 with the full hollow lap rollers and will supply new empty hollow lap rollers 4'' to the inlet of the sliding guides 90.
  • the disc D1 After a pause set by the timer T3, the disc D1 will be actuated again, so as to displace the doffing device in order to cause the hook element 71 to be driven from the position 71d to the starting position 71a (see respectively Figures 8A and 9) thereby causing a new empty hollow lap rollers 4'' to be displaced on the guides 90 and bring it on the arms of the locating element 9 in order to start a new operating cycle.
  • the element for ejecting the full hollow lap roller can be made in different embodiments.
  • a modified embodiment is that shown in Figures 16A and B, which specifically relates to the above illustrated and shown swinging arm 5.
  • the function of the guide movable means 5A is halved by an ejecting element 52a sliding on a rod 54 which exclusively operates as a guide of the ejecting element, whereas the support of the hollow lap roller 4 is provided by a rod 51a adjoining the ejecting element 52a.
  • FIG 17 Another possible modified embodiment is shown in Figure 17, in which from the movable guide means 5B there has been omitted the ejecting element 52, since in this embodiment the above illustrated rod 51 will also operate as an ejecting element.
  • the rod 51 of the preferred embodiment will operate as a connecting rod-crank assembly, since it will comprise two segments 51b and 51b' pivoted on a shaft 55b.
  • the rod 51b-51b' can be brought to the position represented by a dashed line by holding the hollow lap roller 4, as shown in the figure, in a position on the right of the vertical V of the hollow lap roller cylinder 2, its full extension being obtained by causing the shaft 55b to anti-clockwise rotate through an angle of about 90°, to the position in which the two segments 51b and 51b' will be substantially aligned. This position has been shown in the drawing by blackened bars.
  • FIG. 18A and 18B A third possible modified embodiment has been shown in Figures 18A and 18B and it provides for the use of a known arrangement of the guide movable means 5C in which the hollow lap roller 4 is practically only supported by the pivot pins 41 thereof on a rod 51c rightwardly slanted in the drawing, and will move up along the rod 51c during the continued filling-in of said hollow lap roller by the roving 1.
  • the rod 51c supporting and guiding the hollow lap roller has a L-shape, in which the bottom leg 515 can be caused to anticlockwise turn (Figure 18B) in order to urge the full hollow lap roller beyond the vertical line V of the cylinder 2 so as to bring it to the doffing position thereof.
  • FIG. 19A and 19B Yet another modified embodiment 5D of the guide movable means is shown in Figures 19A and 19B and is analogous to the case of Figures 18A and 18B in which the bearing rod 51d is merely caused to translate so as to provide, as it clear appears from the drawing, the same effect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Credit Cards Or The Like (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP95101571A 1994-05-17 1995-02-07 Appareil de levée automatique de rouleaux de nappe à mandrin creux d'un cantre d'une carde condenseuse Expired - Lifetime EP0683254B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI940993 1994-05-17
ITMI940993A IT1269787B (it) 1994-05-17 1994-05-17 Dispositivo di levata automatica delle cannelle da un cannellaio per assortimento di carderia

Publications (2)

Publication Number Publication Date
EP0683254A1 true EP0683254A1 (fr) 1995-11-22
EP0683254B1 EP0683254B1 (fr) 1998-10-28

Family

ID=11368921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95101571A Expired - Lifetime EP0683254B1 (fr) 1994-05-17 1995-02-07 Appareil de levée automatique de rouleaux de nappe à mandrin creux d'un cantre d'une carde condenseuse

Country Status (6)

Country Link
EP (1) EP0683254B1 (fr)
CN (1) CN1119224A (fr)
DE (1) DE69505592T2 (fr)
ES (1) ES2124443T3 (fr)
IT (1) IT1269787B (fr)
PL (1) PL307899A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1009648A3 (fr) * 1995-10-11 1997-06-03 Houget Duesberg Bosson Procede et dispositif pour remplacer les cannelles pleines par des batons vides sur une carde de type carde.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2037348A (en) * 1931-12-17 1936-04-14 Stein Marcel Automatic lap-winding machine
DE1166668B (de) * 1959-05-20 1964-03-26 Saint Gobain Vorrichtung zum Aufwickeln von Faserbaendern an Spinnereivorbereitungsmaschinen
GB1171003A (en) * 1966-01-14 1969-11-19 Toyo Boseki An Improved Lap Winding and Doffing Method and Apparatus.
EP0607945A1 (fr) * 1993-01-20 1994-07-27 Enrico Faggio Condenseur horizontal pour une installation de cardage avec changement automatique d'enroulement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2037348A (en) * 1931-12-17 1936-04-14 Stein Marcel Automatic lap-winding machine
DE1166668B (de) * 1959-05-20 1964-03-26 Saint Gobain Vorrichtung zum Aufwickeln von Faserbaendern an Spinnereivorbereitungsmaschinen
GB1171003A (en) * 1966-01-14 1969-11-19 Toyo Boseki An Improved Lap Winding and Doffing Method and Apparatus.
EP0607945A1 (fr) * 1993-01-20 1994-07-27 Enrico Faggio Condenseur horizontal pour une installation de cardage avec changement automatique d'enroulement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1009648A3 (fr) * 1995-10-11 1997-06-03 Houget Duesberg Bosson Procede et dispositif pour remplacer les cannelles pleines par des batons vides sur une carde de type carde.

Also Published As

Publication number Publication date
ITMI940993A1 (it) 1995-11-17
PL307899A1 (en) 1995-11-27
DE69505592D1 (de) 1998-12-03
ES2124443T3 (es) 1999-02-01
DE69505592T2 (de) 1999-04-01
ITMI940993A0 (it) 1994-05-17
EP0683254B1 (fr) 1998-10-28
IT1269787B (it) 1997-04-15
CN1119224A (zh) 1996-03-27

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