EP0355887A1 - Vorrichtung und Verfahren zum Transport von Spulenhülsen zu Spindeln von Ringspinnmaschinen und zum Ausrichten der Spulenhülsen mit den Spindeln - Google Patents

Vorrichtung und Verfahren zum Transport von Spulenhülsen zu Spindeln von Ringspinnmaschinen und zum Ausrichten der Spulenhülsen mit den Spindeln Download PDF

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Publication number
EP0355887A1
EP0355887A1 EP89201987A EP89201987A EP0355887A1 EP 0355887 A1 EP0355887 A1 EP 0355887A1 EP 89201987 A EP89201987 A EP 89201987A EP 89201987 A EP89201987 A EP 89201987A EP 0355887 A1 EP0355887 A1 EP 0355887A1
Authority
EP
European Patent Office
Prior art keywords
flat elements
pegs
wound yarn
tubes
spindles
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
EP89201987A
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English (en)
French (fr)
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EP0355887B1 (de
Inventor
Sandro Sartoni
Mario Fontana
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.)
Savio SpA
Savio Macchine Tessili SpA
Original Assignee
Savio SpA
Savio Macchine Tessili SpA
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 Savio SpA, Savio Macchine Tessili SpA filed Critical Savio SpA
Publication of EP0355887A1 publication Critical patent/EP0355887A1/de
Application granted granted Critical
Publication of EP0355887B1 publication Critical patent/EP0355887B1/de
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
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/18—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for supplying bobbins, cores, receptacles, or completed packages to, or transporting from, paying-out or take-up stations ; Arrangements to prevent unwinding of roving from roving bobbins
    • D01H9/187—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for supplying bobbins, cores, receptacles, or completed packages to, or transporting from, paying-out or take-up stations ; Arrangements to prevent unwinding of roving from roving bobbins on individual supports, e.g. pallets

Definitions

  • This invention relates to an apparatus for conveying winding tubes to and aligning them with the spinning spindles along the longitudinal faces of a ring spinning machine, the winding tubes being disposed on pegs fixed to a plurality of flat elements connected together by an articulated swivel joint of adjustable length and adhering by gravity to the surface of a mobile conveyor belt. More particularly, the present invention relates to a method for positioning the pegs holding winding tubes in correct coincidence with the axes of the spinning spindles by the action of a tensioning brake which stops the movement of the flat elements by clamping the tail end of the articulated chain formed by connecting together said flat elements.
  • This apparatus for conveying and positioning winding tubes and the pegs holding said winding tubes, is used in operational correlation with the automatic doffing device which automatically removes the winding tubes filled with wound yarn from the spindles and replaces them with a like number of tubes empty of wound yarn to allow further yarn collection.
  • Said spindles are are normally the spinning spindles of a ring spinning machine.
  • the tubes when filled with yarn are the so-called yarn packages, which accumulate the yarn spun by the individual spindles.
  • Ring spinning machines are already known which incorporate automatic doffing devices.
  • the automatic doffing device in ring spinning machines is known to function in operational correlation with conveyors in the form of two endless flexible steel belts, one for each spinning face, which are driven by drive rollers along suitable guides carried by a fixed structure which extends longitudinally along the entire spindle line.
  • Said flexible belt conveyor comprises a plurality of pegs fixed to it at regular intervals for holding and supporting both the tubes filled with wound yarn which the gripper elements of the automatic doffing device have removed from the relative spindles, and for receiving and holding the tubes empty of wound yarn which are to replace the yarn packages extracted from the spindles.
  • the flexible belt conveyor which extends along the entire length of the machine between the respective ends, can move horizontally and parallel to the machine length to bring the pegs coaxial with the axes of the various spindles.
  • the flexible belt is made to resume its intermittent or continuous movement along the front side of the spinning machine, and as this latter again starts to newly accumulate wound yarn it unloads the tubes filled with wound yarn from the respective support pegs by known means and also, by known means, receives the new tubes empty of wound yarn.
  • a conveyor apparatus of this type with flexible belts for moving the winding tubes is presented and described for example in Italian patent No. 784810.
  • current ring spinning machines can comprise many hundreds of spindles along a single working face. When the tubes are full of wound yarn they are withdrawn from the relative spindles and deposited in ordered arrangement on a belt or conveyor element.
  • the conveyor system or device of the aforesaid Italian patent and others of the known art operate on the friction drive principle. Devices of this construction are subject to more or less extensive slippage if the conveying length is long. To limit this slippage to acceptable values requires a considerable increase in the installed tension of the flexible conveyor belt in order to increase the contact pressure on the drive roller and so increase the friction force along the contact arc between said drive roller and the inner surface of the flexible belt which wraps it.
  • This belt is susceptible to longitudinal elastic deformation, which increases as the installed tension is increased and therefore gives rise to a increasing linear non-uniformity in the distance between the pegs which hold the winding tubes. This compromises the operation of the entire conveying system during the action of the aforesaid automatic doffing device in the ring spinning machine.
  • said lateral guides have to act with force against the longitudinal edges of the flexible belt to retain it within the guide, and this results in rubbing friction which because of its abrasive effect is damaging for the entire flexible belt and increases the power required to drive said belt.
  • the object of the present invention is to obviate the aforesaid drawbacks by providing an apparatus and method for conveying winding tubes filled with wound yarn or empty of wound yarn and for aligning them in correspondence with the spinning spindles along the faces of a ring spinning machine, which have the following advantages: - the winding tube assembly is conveyed without the need for considerable drive force; - the winding tubes can be moved automatically along any horizontal distance without even the minimum hindrance arising, the motion transmission being of high efficiency with perfect guiding along the entire path of movement; - the structure is of simple construction, with very small transverse dimensions along its entire longitudinal extension, this being combined with simple operation such that the replacement of the tubes filled wound yarn by the tubes empty of wound yarn can be carried out rapidly; - even after a prolonged period of operation under substantial temperature variations, the exact repositioning of all the pegs holding their winding tubes in a manner aligned and coaxial with the respective spinning spindles is ensured so that the gripper elements of the automatic doffing device can simultaneously and
  • the apparatus of the present invention which is positioned along and about a ring spinning machine to convey winding tubes filled with wound yarn or empty of wound yarn and align them with the spinning spindles, said apparatus, which cooperates with the automatic doffing device on both the spinning faces, comprising: - a plurality of flat elements connected together by an articulated swivel joint of adjustable length and each comprising on their upper part at least one holding peg for a winding tube; said articulated swivel joint consisting of a connecting rod which connects together two consecutive flat elements and which is connected at one end to a pin rigid with one of the two flat elements to form the articulated swivel joint and at its other end to a preferably threaded element rigid with the other flat element to effect precise and adjustable axial positioning of said flat elements; - endless mobile belts which support and drive a plurality of flat elements having their lateral surfaces provided with means identifiable by position transducers; - a tensioning brake which halts the flat elements by clamping
  • the apparatus of the present invention implements a method both for seating the winding tube on pegs fixed to a plurality of flat elements connected together by an oscillating articulation system of adjustable length and which individually rest by gravity on the surface of a mobile drive belt, and for aligning the winding tube holding pegs in positions perfectly coaxial with the axes of the spinning spindles by the action of a tensioning brake which halts the movement of the flat elements by clamping the tail end of the articulated chain formed by said flat elements connected together.
  • 1 is the flat element comprising on its upper part two holding pegs, of which in the proposed preferred application one peg holds and supports the winding tube empty of wound yarn and the other peg holds and supports the winding tube filled with wound yarn.
  • Said flat element rests by gravity on the surface of an underlying mobile drive belt;
  • 2 is the tube empty of wound yarn mounted on one of the two pegs which are rigidly fixed to the flat element 1;
  • 3 is the machinery housing of the ring spinning machine having two opposing spinning faces, each formed from some hundreds of adjacent spindles one adjacent the other;
  • 4 is the last element of the articulated chain ready to engage with the lever mechanism of the tensioning brake;
  • 5 and 6 are the mobile flat belts arranged along the spinning faces to support and drive the articulated chain of flat elements.
  • Said pegs are fixed rigidly to the flat elements by a lower shank pin 17 about which a connecting rod engages to form the swivel joint for two consecutive flat elements; 18 is the threaded element rigid with the flat element and screwed into a connecting rod to allow the precise and adjustable axial positioning of two consecutive flat elements; 19 is a position transducer which cooperates with identifiable means 21 applied to the lateral surfaces of the flat elements; 20 is the drive source for operating the drive rollers 12 and 14; 22 is the support slide for the lever mechanism of the tensioning brake.
  • Said slide is normally stationary in position 22 and moves into position 22a when it is required to move the lever mechanism of the tensioning brake together with the articulated chain through a distance equal to the distance between the axes of the two pegs fixed on a single flat element.
  • 24 are blocking levers operated by known means for engaging between the flat elements and causing them to advance intermittently stepwise
  • 25 is the connecting rod which connects two consecutive flat elements and which at one end is connected to the pin shank 17 to form the swivel joint and at the other end is connected to the threaded element 18 to allow adjustable axial positioning
  • 26 is the articulated chain formed from the plurality of flat elements which surround the ring spinning machine
  • 27 is the device which contains both the accumulation of tubes empty of wound yarn and the known means for mounting said tubes in the direction of the arrow 46 onto the pegs 16 of the flat elements
  • 28 is the container bin for the tubes 50 filled with wound yarn which are conveyed into it by the chute 29 after being seized and withdrawn from the pegs 16 by
  • Said guide and support section bar passes around the end structure 7 of the spinning machine, about the whole of which there extends an endless slide track; 34 is the rod of the actuator 32; 35 and 36 are the levers of the tensioning brake lever mechanism which engage with the frusto-conical sides of the flat element 4.
  • the winding tubes 2 empty of wound yarn are already, as shown in Figure 1, arranged in a position in front of the spinning spindles awaiting operational correlation with the automatic doffing device which when a winding is complete replaces the tubes filled with wound yarn and mounted on the relative spindles, with said tubes 2 empty of wound yarn and held stationary on the pegs of the articulated chain 26.
  • the winding tubes 2 are held in a line on alternate pegs at a distance apart equal to the spindle pitch, the spindle pitch being the distance between the axes of two adjacent spindles.
  • the holding pegs 16, fixed in pairs on the flat element 1 follow each other at a distance apart equal to one half the pitch of the spinning spindles of the ring spinning machine.
  • the gripper elements firstly remove all the tubes filled with wound yarn simultaneously from both faces by withdrawing them from their spindles and immediately mounting them on the free pegs 16 which alternate with the tubes 2 empty of wound yarn.
  • Said free pegs 16 are stationary in positions perfectly coaxial with the axes of the various spindles, this correct precise location being determined by the clamping action of the levers 35 and 36 of the tensioning brake (see Figure 5), while the endless belts 5 and 6 exercise by their movement 8 and 10 the tensioning and aligning action on the individual flat elements 1.
  • the gripper elements are released and rise from them, after placing them on the relative pegs 16, by the distance needed not to obstruct the subsequent movement of the articulated chain 26.
  • the same gripper element is preferably made to grip a tube empty of wound yarn and mount it on the spindle.
  • the gripper elements can be of any construction suitable for the purpose. However it is preferable to use gripper elements of a new type such as those described in European patent application No. 88200602.6 of the present applicant.
  • the actuator 32 is then activated to move the slide 22 into the position 22a (see Figure 5, dashed-line position) .
  • the entire lever mechanism of the tensioning brake which continues to clamp the flat element 4, moves rigidly with said slide 22 to produce the aforesaid movement of the articulated chain 26. This latter advances through one half the spindle pitch by the dragging action of the endless mobile belts 5 and 6.
  • the mobile belts 5 and 6 are preferably operated continuously at least during the entire doffing cycle so that by the dragging action which they exert on the flat elements 1 they produce a continuous positioning tension throughout the articulated chain 26.
  • Said positioning tension which arises by the simultaneous cooperation between the clamping action of the levers 35 and 36 of the tensioning brake and the dragging movement 8 and 10 of the endless belts 5 and 6, is necessary to preserve the alignment of the flat elements 1 along the two horizontal longitudinal sections of the spinning faces of the spinning machine, and also to ensure operational coaxiality between the holding pegs 16 and the axes of the many hundreds of spindles.
  • the expulsion of the individual winding tubes 50 from the pegs 16 of the articulated chain 26 can be continuous or intermittent in known manner.
  • the insertion mechanism and pickup device can be of any known type suitable for the purpose.
  • Said endless mobile belts 5 and 6 are driven by the same drive source 20 (see Figures 1 and 6) which by way of a reduction gear and inverter 15 causes the two drive pulleys 12 and 14 to rotate substantially synchronized but in reverse directions. These latter drive the two endless belts 5 and 6 at a substantially identical rate, their upper branches moving in opposite directions in accordance with the arrows 10 and 8.
  • the articulated chain 26 is adjusted in length by making micrometric adjustments on the screw connections between the elements 18 and the connecting rods 25 of consecutive flat elements 1, this precision then not changing with time because their movement within the apparatus of the present invention does not involve any forced dragging, the sliding of the chain also being smooth about curves because of the facility for considerable swivelling between said flat elements 1 (see Figure 7).
  • FIG. 1 and 6 for moving the articulated chain 26 is only one example of the many possible methods, such as moving by several short-length belts disposed along the individual spinning faces. They are driven in the same direction and in substantial synchronism along their individual spinning face
  • Figure 8 shows one of these possible methods in which the belts 5a, 5b and 5c are driven in the direction indicated by the arrow 8 whereas the belts 6a,6b and 6c of the opposite spinning face are driven in the direction indicated by the arrow 9.
  • Said figure also shows the presence of transverse belts which can be installed to improve the movement of the articulated chain 26.
  • an installation can be desirable consisting of a double apparatus of the type according to the invention, one for each spinning face, to cooperate with an automatic doffing device which operates on only one face of the spinning machine independently of the other face, to allow spinning of different batches of yarn.
  • Each apparatus in this case extends horizontally about the spindle line of one spinning face in an arrangement comprising a return track for the articulated chain entering and underlying the machinery housing 3 of the spinning machine. Both apparatuses then assume an arrangement symmetrical to each other about the longitudinal axis of the spinning machine, it being apparent that such an embodiment does not lie outside the scope of protection of the present invention.
  • the gripper elements of the automatic doffing device firstly remove the tubes filled with wound yarn from the spindles and place them temporarily on stationary pegs fixed to a rod or similar element fixed rigidly to the spinning machine frame, to then grip the tubes empty of wound yarn and fix them onto the spindle, and then again grip the tubes filled with wound yarn and transfer them from the pegs on which they are held to the pegs 16 of the flat elements 1 of the apparatus according to the invention.
  • Such an automatic doffing cycle and device are of the known art and thus no further description is necessary. It is apparent that in this latter modification the slide 22 of the tensioning brake is never moved through the aforesaid half spinning spindle pitch.
  • the apparatus must also be made compatible with the movement of other elements such as travelling cleaner devices, yarn rejoining trolleys etc.
  • the number of pegs 16 fixed on each flat element 1 can vary; the shapes and dimensions of said holding pegs 16 can vary; a single transfer belt could be provided extending along the entire spinning face opposite that spinning face comprising the tensioning brake; a plurality of transfer belts could be provided driven with identical or slightly different speeds; dragging elements other than belt elements could be provided; it would also be possible to provide a different lever mechanism for the tensioning brake; and drive sources could be added or removed to advantageously coordinate the movement of the dragging belts with all the various operating stages of the devices provided in the apparatus of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
EP89201987A 1988-08-23 1989-07-27 Vorrichtung und Verfahren zum Transport von Spulenhülsen zu Spindeln von Ringspinnmaschinen und zum Ausrichten der Spulenhülsen mit den Spindeln Expired - Lifetime EP0355887B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8821732A IT1226851B (it) 1988-08-23 1988-08-23 Apparecchiatura e metodo per convogliare e per allineare ai fusidi filatura ad anello tubetti avvolgitori
IT2173288 1988-08-23

Publications (2)

Publication Number Publication Date
EP0355887A1 true EP0355887A1 (de) 1990-02-28
EP0355887B1 EP0355887B1 (de) 1993-06-09

Family

ID=11186086

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89201987A Expired - Lifetime EP0355887B1 (de) 1988-08-23 1989-07-27 Vorrichtung und Verfahren zum Transport von Spulenhülsen zu Spindeln von Ringspinnmaschinen und zum Ausrichten der Spulenhülsen mit den Spindeln

Country Status (4)

Country Link
EP (1) EP0355887B1 (de)
DE (1) DE68906985D1 (de)
ES (1) ES2041974T3 (de)
IT (1) IT1226851B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5136834A (en) * 1989-06-09 1992-08-11 Zinser Textilmaschinen Gmbh Apparatus for transporting bobbin tubes of a textile machine
US5167115A (en) * 1989-09-21 1992-12-01 Rieter Machine Works, Ltd. Spinning machine having multi-section endless conveyor and method of mounting the conveyor
US5185993A (en) * 1988-09-24 1993-02-16 Rieter Machine Works, Ltd. Spinning machine having a peg tray conveyor
DE4319173A1 (de) * 1993-06-09 1994-12-15 Schlafhorst & Co W Ringspinnmaschine bei der längs auf beiden Seiten der Maschine vorhandener Spindelreihen zum Zuführen von Leerhülsen und Abführen von Kopsen antreibbare Transportbänder angeordnet sind
CN1690271B (zh) * 2004-04-16 2010-09-01 里特机械公司 纺纱机设备
CN110217649A (zh) * 2019-07-04 2019-09-10 嘉兴亿豪新材料股份有限公司 一种纱筒更换装置中的取筒机构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3712027A1 (de) * 1986-04-11 1987-10-22 Toyoda Automatic Loom Works Verfahren und vorrichtung zum transportieren von vollen spulen und leeren spulenkernen bei einer textilmaschine
DE3731497A1 (de) * 1986-09-20 1988-04-07 Murata Machinery Ltd Spulentellertransportvorrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3712027A1 (de) * 1986-04-11 1987-10-22 Toyoda Automatic Loom Works Verfahren und vorrichtung zum transportieren von vollen spulen und leeren spulenkernen bei einer textilmaschine
DE3731497A1 (de) * 1986-09-20 1988-04-07 Murata Machinery Ltd Spulentellertransportvorrichtung

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 267 (C-443)(2714) 28 August 1987, & JP-A-62 069834 (HOWA MACH LTD.) *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 353 (C-457)(2800) 18 November 1987, & JP-A-62 125025 (TOYODA AUTOM LOOM WORKS LTD.) *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 353 (C-457)(2800) 18 November 1987, & JP-A-62 125026 *
PATENT ABSTRACTS OF JAPAN vol. 7, no. 3 (C-143)(1148) 07 January 1983, & JP-A-57 161134 *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 301 (C-316)(2024) 28 November 1985, & JP-A-60 139836 (HOWA KOGYO K.K.) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5185993A (en) * 1988-09-24 1993-02-16 Rieter Machine Works, Ltd. Spinning machine having a peg tray conveyor
US5136834A (en) * 1989-06-09 1992-08-11 Zinser Textilmaschinen Gmbh Apparatus for transporting bobbin tubes of a textile machine
US5167115A (en) * 1989-09-21 1992-12-01 Rieter Machine Works, Ltd. Spinning machine having multi-section endless conveyor and method of mounting the conveyor
DE4319173A1 (de) * 1993-06-09 1994-12-15 Schlafhorst & Co W Ringspinnmaschine bei der längs auf beiden Seiten der Maschine vorhandener Spindelreihen zum Zuführen von Leerhülsen und Abführen von Kopsen antreibbare Transportbänder angeordnet sind
CN1690271B (zh) * 2004-04-16 2010-09-01 里特机械公司 纺纱机设备
CN110217649A (zh) * 2019-07-04 2019-09-10 嘉兴亿豪新材料股份有限公司 一种纱筒更换装置中的取筒机构
CN110217649B (zh) * 2019-07-04 2020-12-29 海宁市冯氏科技股份有限公司 一种纱筒更换装置中的取筒机构

Also Published As

Publication number Publication date
IT1226851B (it) 1991-02-19
IT8821732A0 (it) 1988-08-23
DE68906985D1 (de) 1993-07-15
ES2041974T3 (es) 1993-12-01
EP0355887B1 (de) 1993-06-09

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