EP0290063A1 - Greifeinrichtung zum Abziehen einer Spule und zum Aufstecken einer Spulenhülse in einer Spinnmaschine - Google Patents

Greifeinrichtung zum Abziehen einer Spule und zum Aufstecken einer Spulenhülse in einer Spinnmaschine Download PDF

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Publication number
EP0290063A1
EP0290063A1 EP88200602A EP88200602A EP0290063A1 EP 0290063 A1 EP0290063 A1 EP 0290063A1 EP 88200602 A EP88200602 A EP 88200602A EP 88200602 A EP88200602 A EP 88200602A EP 0290063 A1 EP0290063 A1 EP 0290063A1
Authority
EP
European Patent Office
Prior art keywords
picking element
picking
carrying
tube
gripping
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
EP88200602A
Other languages
English (en)
French (fr)
Other versions
EP0290063B1 (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 EP0290063A1 publication Critical patent/EP0290063A1/de
Application granted granted Critical
Publication of EP0290063B1 publication Critical patent/EP0290063B1/de
Expired 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
    • D01H9/001—Bobbin-taking arrangements

Definitions

  • the present invention relates to improvements in the picking element of the device for the automatic doffing in a spinning frame.
  • the textile machines preferably the spinning frames, are often equipped with devices for carrying out the automatic doffing of the bobbins, and the automatic replacement of these latter by empty tubes.
  • Such automatic change devices can be possibly present also on other textile machines, e.g., on reeling machines, and the like.
  • the change devices for carrying out the operation of bobbin doffing, and the operation of introduction on the spindle of the empty winding tube are provided with picking elements, or means, for gripping and handling the empty tubes, or the tubes filled with wound thread.
  • picking elements are mounted on a longitudinal beam, in a cantilever fashion, to which beam the necessary movement is supplied, for simultaneously picking all the complete pirns from the spindle, and, according to a suitable sequence, for simultaneously positioning all the empty tubes on said spinning spindles.
  • Picking elements are known, which are based on the use of bushes containing elastically yielding inner sleeves which, under the action os a pressurized fluid, are inflated in order to be able to grip the full pirns, or the empty tubes.
  • the picking elements destined to the automatic doffing of all the full bobbins, and those destined to the re-charge of all the empty tubes of the whole spinning bed are generally separated from one another, and are provided with well-distinct drive means.
  • picking elements are known.
  • a structural type of the picking elements for empty tubes, or tubes filled with thread is disclosed in detail in the specification of U.S. patent No. 3,367,098.
  • the picking element has a pin shape, and has an elastic-bellows body having the shape of a bag which presses, after being inflated, against the inner wall of the tube to be gripped, and in such a way grips and moves it.
  • This type of picking element makes some drawbacks arise, which limit its application.
  • the inclination is such that, as the movements for the automatic doffing operation proceed, the empty tube, or the tube filled with thread beats against parts of the machine, which damage it, and, in extreme cases, also a damage occurs to the picking element, or to the corresponding machine parts against which the same tube comes to interfere.
  • This picking element together with some advantageous characteristics, like its small overall dimensions and the simplicity of the operating cycle within the scope of the double-gripping element implements, suffers from some drawbacks, which complicate its manufacturing and assemblage steps and which consequently cause a considerable increase in its manufacturing costs.
  • drawbacks are mainly represented by the presence of two gripping elements, which determine a double fastening, and which are manufactured with a plurality of mechanical elements associated with, and fastened to, one another, by means of assemblage operations, of a considerable overall cost.
  • the primary purpose of the present invention is to render only one the gripping element destined to grip the tubes and the bobbins (i.e., those tubes on which desired amounts of thread have been wound) and, furthermore, to considerably simplify the manufacturing operations thereof.
  • the purpose of the invention is to provide a picking element with a considerably reduced cost.
  • a further purpose which is also an object of the present invention, is to provide a safety device, which comprises one or more sensitive elements, which react and trigger a safety action when the movement which the only one picking element is expected to carry out is hindered during the change in position of the empty tube, or of the tube filled with wound thread.
  • a simple sensitive mechanical element is provided for, which carries out the unhooking of the picking element from the longitudinal support beam, whenever an unexpected resistance occurs.
  • the safety element owing to cost reasons, is advantageously given the structure of a simple self-tapping screw, which connects the longitudinal support beam with a pin suitably coupled with the picking element.
  • Said pin is simply provided, through its middle, with a bore, which is self-tapped under the action of said self-tapping screw, which joints and makes the above said safety device trip.
  • the self-thread generated by the screw on the pin is in fact the actual safety element, in that it results to have a limited, and calibrated enough, strength, on a value preset during the design step.
  • the handling integrity is restored by simply replacing the pin provided with said smooth bore, which gets self-tapped during the simple action of connection, or binding, screwing-down, as above disclosed. Incidentally, the functionality of the picking element is restored without it having to be replaced.
  • the only one picking element extends downwards with two wings having the shape of diametrically opposite circular sectors, and forming a divergent funnel shape, for acting as an invitation and a guide for the introduction of said gripping element into the length close to its top end, of the empty tube, or of the tube filled with wound thread, in order to carry out, and secure the gripping operation.
  • the only one picking element is positioned and linked to the beam for longitudinal supporting and supplying with movement the picking element for the automatic doffing operation, by means of one or more elements which also take upon themselves the precise function of acting as operative safety means for unhooking from said beam said picking element when this latter acts as a casual cause of block and of hindrance to the movement of the whole doffing equipment.
  • the only one picking element picks the empty tube, as well as the tube filled with wound thread, by clamping the outer surface of its portion close to its top end.
  • the automatic doffing device is positioned in such a way that the beam 4 positions the picking element 1 around the portions close to its top end, of said either empty or thread-filled tube, and the electrovalves, or similar means are then operated, which deliver compressed air to the main duct 9. Then, through the communication channel 8, compressed air is fed to the ring slot 5, which causes the deformation of the elastically yielding sleeve or membrane 10 to occur, causing the empty tube, or the tube filled with wound thread, to be gripped.

Landscapes

  • 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)
EP88200602A 1987-05-08 1988-03-30 Greifeinrichtung zum Abziehen einer Spule und zum Aufstecken einer Spulenhülse in einer Spinnmaschine Expired EP0290063B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2042787 1987-05-08
IT20427/87A IT1205005B (it) 1987-05-08 1987-05-08 Elemento di presa per effettuare l'operazione di levata della bobina e quella d'introduzione del tubetto vuoto in una macchina di filatura

Publications (2)

Publication Number Publication Date
EP0290063A1 true EP0290063A1 (de) 1988-11-09
EP0290063B1 EP0290063B1 (de) 1992-10-21

Family

ID=11166788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88200602A Expired EP0290063B1 (de) 1987-05-08 1988-03-30 Greifeinrichtung zum Abziehen einer Spule und zum Aufstecken einer Spulenhülse in einer Spinnmaschine

Country Status (5)

Country Link
EP (1) EP0290063B1 (de)
DE (1) DE3875371T2 (de)
ES (1) ES2036663T3 (de)
GR (1) GR3006121T3 (de)
IT (1) IT1205005B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515804A1 (de) * 1991-05-30 1992-12-02 Zinser Textilmaschinen GmbH Verfahren zum Abziehen von Spulen und zum Aufstecken von Spulenhülsen an Spindeln einer Maschinenseite einer Spinn- oder Zwirnmaschine und Vorrichtung zur Durchführung des Verfahrens
US5199254A (en) * 1990-06-27 1993-04-06 Savio S.P.A. Device for sequentially loading orientated tubes onto the doffing belt of a spinning machine
US5289674A (en) * 1990-06-29 1994-03-01 Savio Winding machine with an in-line package preparer, and an improved spinning-winding method
US5426930A (en) * 1990-06-29 1995-06-27 Savio, S.P.A. Device for sequentially loading oriented tubes in a spinning machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113896048B (zh) * 2021-12-10 2022-02-08 新沂利业织造有限公司 一种圆锥纱筒自动化抓取装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2182870A1 (de) * 1972-03-16 1973-12-14 Nuova San Giorgio Spa
FR2466534A1 (fr) * 1979-09-28 1981-04-10 Alsacienne Constr Meca Dispositif de prehension de supports de files sur machines textiles a broches rotatives
GB2118523A (en) * 1982-04-16 1983-11-02 Schubert & Salzer Maschinen Inflatable gripper

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2182870A1 (de) * 1972-03-16 1973-12-14 Nuova San Giorgio Spa
FR2466534A1 (fr) * 1979-09-28 1981-04-10 Alsacienne Constr Meca Dispositif de prehension de supports de files sur machines textiles a broches rotatives
GB2118523A (en) * 1982-04-16 1983-11-02 Schubert & Salzer Maschinen Inflatable gripper

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5199254A (en) * 1990-06-27 1993-04-06 Savio S.P.A. Device for sequentially loading orientated tubes onto the doffing belt of a spinning machine
US5289674A (en) * 1990-06-29 1994-03-01 Savio Winding machine with an in-line package preparer, and an improved spinning-winding method
US5426930A (en) * 1990-06-29 1995-06-27 Savio, S.P.A. Device for sequentially loading oriented tubes in a spinning machine
EP0515804A1 (de) * 1991-05-30 1992-12-02 Zinser Textilmaschinen GmbH Verfahren zum Abziehen von Spulen und zum Aufstecken von Spulenhülsen an Spindeln einer Maschinenseite einer Spinn- oder Zwirnmaschine und Vorrichtung zur Durchführung des Verfahrens
DE4117730A1 (de) * 1991-05-30 1992-12-03 Zinser Textilmaschinen Gmbh Verfahren zum abziehen von spulen und zum aufstecken von spulenhuelsen an spindeln einer maschinenseite einer spinn- oder zwirnmaschine und vorrichtung zur durchfuehrung des verfahrens

Also Published As

Publication number Publication date
EP0290063B1 (de) 1992-10-21
GR3006121T3 (de) 1993-06-21
IT8720427A0 (it) 1987-05-08
ES2036663T3 (es) 1993-06-01
DE3875371T2 (de) 1993-04-08
DE3875371D1 (de) 1992-11-26
IT1205005B (it) 1989-03-10

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