US3895482A - Bobbin changing apparatus - Google Patents

Bobbin changing apparatus Download PDF

Info

Publication number
US3895482A
US3895482A US374136A US37413673A US3895482A US 3895482 A US3895482 A US 3895482A US 374136 A US374136 A US 374136A US 37413673 A US37413673 A US 37413673A US 3895482 A US3895482 A US 3895482A
Authority
US
United States
Prior art keywords
bobbin
gripper
carrier
bobbin gripper
responsive
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 - Lifetime
Application number
US374136A
Other languages
English (en)
Inventor
Gunter Schulz
Wolfgang Igel
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Zinser Textilmaschinen GmbH
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 Zinser Textilmaschinen GmbH filed Critical Zinser Textilmaschinen GmbH
Application granted granted Critical
Publication of US3895482A publication Critical patent/US3895482A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • D01H9/003—Graspers operating under the action of a fluid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S294/00—Handling: hand and hoist-line implements
    • Y10S294/907—Sensor controlled device

Definitions

  • An automatic bobbin changing apparatus for a textile machine includes at least one bobbin gripper.
  • a carrier is provided for the bobbin.
  • Controlled instrumentalities are provided to effect movement of the bobbin gripper.
  • a sensor preferably in the form of a switch, is operatively arranged to sense the impeding of the bobbin gripper as it moves along a predetermined path.
  • a control circuit responds to the control signal which may be produced by the sensor and produces an output signal.
  • the controlled instrumentalities respond to the output signal and either stop the advance of the bobbin gripper or reverse its direction.
  • This invention relates to an automatic bobbin changing apparatus for a textile machine.
  • the invention relates, more particularly, to an automatic bobbin changing apparatus which includes at least one bobbin gripper, which is adjustable in position by means of a control and drive mechanism; and at least one carrier on which the bobbin gripper or grippers are disposed for gripping and holding bobbins.
  • the bobbin changing apparatus is particularly useful in conjunction with spinning machines, winding machines, twisting machines and the like.
  • bobbin means any type of hollow member, including spools and the like, on which thread or yarn packages are or may be wound on textile machines.
  • Spinning machines, twisting machines and winding machines are often equipped with automatic bobbin changing apparatuses which automatically exchange full bobbins for empty bobbins.
  • bobbins carrying thread or yarn packages obtained by winding on an associated machine are exchanged for empty bobbins.
  • Such bobbin changing apparatuses may also, in certain cases, be provided on different textile machines, for example, on winding machines and the like.
  • Such bobbin changing apparatus include bobbin grippers for gripping and holding the full and empty bobbins during transport.
  • Bobbin grippers are usually disposed on one or more carriers which are moved in a manner necessary to effect the bobbin changing by means of control and driving devices.
  • bobbin changing apparatuses which consist of a single bobbin gripper disposed on a carrier. In these cases, the bobbins to be changed are exchanged sequentially. In general, however, a large number of bobbin grippers are disposed on each carrier in order to be able to exchange simultaneously a multitude of bobbins.
  • An automatic bobbin changing apparatus of this type is described, for example, in US. Pat. No. 3,370,411.
  • An example of a bobbin gripper of a type suitable for use in the present invention is described in US. Pat. No. 3,367,098. It is to be understood, however, that numerous other embodiments of bobbin changing apparatuses and bobbin grippers are known.
  • the power requirements of the driving means for bobbin gripper installations are, in general, quite high. If one of the bobbins held by a bobbin gripper meets, for any reason, an obstacle in its predetermined path of motion, serious damage to the bobbin being transported or to machine parts or the like may result. In rare instances during the installation of empty bobbins on spindles of a spinning or twisting machine, the pivotably mounted spindle shaft can be loaded axially downwardly by forces of high magnitude.
  • a bobbin held by a bobbin gripper positions itself obliquely with respect to the longitudinal axis of the bobbin gripper, for example, because the thread of its thread winding body had not been torn off in time from the doffing region of the thread in the vicinity of a doffing station of the spindle, then such an obliquely positioned bobbin can bump into machine parts during the further motion of the carrier under unfavorable circumstances.
  • the incorrectly, obliquely positioned bobbin could be damaged and/or the bobbin gripper and/or the particular machine part could be damaged.
  • the principal object of the present invention is to provide a bobbin changing apparatus which averts damages to bobbins, machine parts and the like during the bobbin changing operation better than in known automatic bobbin changing apparatuses.
  • a safety device which safety device includes a sensor of sensors.
  • the sensor responds whenever the predetermined motion of at least one of the bobbins carried by a bobbin gripper is impeded during the change of position of the gripper.
  • a safety routine is initiated in response to an output from the sensor indicating that the motion of the bobbin had been impeded.
  • the safety routine which can be initiated by the safety device can be of any suitable kind effected by relatively simple means.
  • the safety device includes switching means which respond to an output signal from at least one of the sensors and arrests the motion of the bobbin gripper associated with that particular sensor or reverses its direction of motion.
  • the safety device can be provided with optical and- /or acoustical signaling instrumentalities which indicate each reaction of the sensor or sensors optically or acoustically.
  • Each bobbin gripper is preferably operatively associated with its own sensor which can initiate the safety routine, independently of the condition of the other sensors assigned to the other bobbin grippers, if the bobbin held by the particular gripper is impeded in its predetermined motion by the change of position of the carrier.
  • a single sensor need be provided.
  • the sensor in this case, is assigned to and operatively associated with the carrier itself or to the driving mechanism of the gripper mechanism.
  • the sensor thus responds whenever the motion of the carrier, i.e. motion of a bobbin held on the carrier by a bobbin gripper, encounters an unexpected resistance to its predetermined desired motion. If, for example, the motion of the carrier is effected by means of a hydraulic or pneumatic cylinder, then the sensor can be a pressure transducer which senses the working pressure of the fluid. In these cases, whenever the pressure rises anomalously, due to the resistance to motion caused by the collision of a bobbin, it initiates the safety routine.
  • the technique provided by the present invention makes it possible to avert, better than before, the danger of damages to bobbins, machine parts and the like.
  • the safety device is embodied in such a way that whenever a sensor responds, further motion of the gripper or carrier, as the case may be, stops or its direction of motion is reversed.
  • This is achieved, for example, by influencing the control or the driving means, for example, by activating a switch which changes the direction of rotation of an electric motor, serving as the driver for the gripper or by switching off the electric motor. If other driving means are used, it is to be understood that the appropriate measures can also be provided.
  • Each initiation of the safety routine can suitably. additionally, be indicated optically or acoustically so that service personnel are alerted to the disturbance and can relieve it without delay.
  • the bobbin gripper is elastically mounted on the carrier. If, in that case, the bobbin carried by the carrier meets an unforeseen resistance or obstruction, the carrier is displaced relative to the particular bobbin gripper during its further motion. This relative displacement can be sensed by the sensor, preferably an electrical means, such as switches, electrical contacts or the like, and the safety routine can be thus initiated. It is particularly advantageous to choose the elastic mobility of the bobbin gripper or its mounting so that the gripper moves, relative to its associated carrier, both during axial loads on the bobbin carried by it, as well as during pivotal motions of this bobbin. The sensor can be advantageously designed so that the safety routine is effectively initiated by both kinds of undesirable displacements.
  • the bobbin held by one of the bobbin grippers can be displaced, relative to its carrier, whenever it encounters a resistance or obstruction impeding its axial motion.
  • axial motion of the bobbin may be impeded because its inside diameter is too small for mounting it on a spindle and the bobbin gripper is operatively associated with a sensor which senses an axial change of position of the bobbin on the bobbin gripper, thus initiating the safety routine.
  • the senor of the safety device can preferably be an electrical sensing means; however, the sensor or sensors can have any suitable construction whatever.
  • the sensors can be electromagnetic, electrohydraulic, electrooptical in nature. Other types of sensors could be used equally well.
  • the carrier may carry a large number of bobbin grippers and when suitable, each bobbin gripper has assigned to it its own sensor, then for reasons of cost alone, the sensors can be advantageously developed as electrical contacts or switches of one or several electrical circuits.
  • the gripper is electrically insulated from the carrier, and electrical contact surfaces are provided on the gripper and on the carrier as the sensor which, when they come in contact with one another, closes an electrical circuit.
  • FIG. 1 is a partial cross-sectional view through a bobbin gripper and carrier of a bobbin changing apparatus: not shown in further detail, to which a safety device ac cording to the present invention is operatively associ ated.
  • FIG. 2 is a detailed schematic circuit diagram of a driving and safety device of the bobbin changing apparatus of FIG. 1 for the case in which a multitude of bobbin grippers whose assigned sensors can initiate the safety routine independently of one another.
  • FIG. 3 is a partial cross-sectional view through a modif ed embodiment of the apparatus of FIG. 1.
  • FIG. 4 is a top view of an electrical contact member of the apparatus according to FIG. 3.
  • FIG. 5 is a partial cross-sectional view through a third exemplary embodiment of an apparatus according to the present invention.
  • the bobbin grippers 14, as shown, are developed at their free end in a cone shape, and are provided with a bag-shaped elastic bellows 15 which has its lower end in contact with the cone-shaped portion.
  • the bellows 15 is inflatable by means of fluid under pressure which can be admitted into it through a main channel 16 disposed in the carrier 13 and through a cross channel 17 branching off from main channel 16 and in fluid communication with the interior of the bellows 15.
  • the bellows 15 of all the bobbin grippers 14 of the bobbin changing apparatus are connected to the main channel 16 by cross channels corresponding to the cross channel 17 and are, therefore, simultaneously inflatable.
  • the bellows 15 are inflated whenever they have previously been inserted from above into the interior space of the bobbin 19, shown in phantom lines, so as to grip the bobbins. Because of the inflation and enlargement, the bellows 15 presses against the inner wall of the bobbin 19 to be gripped and holds it in this manner.
  • a more detailed construction of the illustrated bobbin gripper 14 is described in the U.S. Pat. No. 3,367,098.
  • the gripper 14 is always to be designed so that it can be inserted from above into the interior of the bobbin 19 and that the bobbin can be displaced axially upwardly during the influence of excessively large axial forces.
  • the bobbin grippers 14 can, for example, also be designed so that they extend over the upper end of the bobbin. If the locations of the sensors are changed, the bobbin grippers 14 can be pincershaped and can grasp a bobbin, for example, in the vicinity of its lower end. It is to be understood that other embodiments of bobbin grippers can be used equally well in apparatuses for changing bobbins in accordance with the present invention.
  • each bobbin gripper 14 on carrier 13 is provided with one inverted cup-like-shaped first contact member 20.
  • the first contact member 20 has the form of a hollow, circular cylinder, and has a central threaded stud 21 which is screwed into the carrier 13.
  • the bottom of the interior volume 22 of this first contact member 20 carries a deformable elastic spacer 23 in the shape of a circular cylinder made of rubber or synthetic material.
  • the elastic spacer 23 is mounted, for example, by gluing or a similar technique.
  • the outside diameter of the elastic spacer 23 is considerably smaller than the inside diameter of the cylindrical interior volume 22.
  • the elastic spacer 23 extends downwardly somewhat beyond the first contact member 20, and the lower flat surface of this spacer 23 carries a second contact member 24 in the form of a metallic plate, which is fastened by gluing or a similar technique, and into which is screwed a threaded stud 25, which forms part of a metallic holder 26 having the shape of a circular cylinder.
  • the elastic bellows is fastened to the metallic holder 26.
  • the elastic spacer 23 is made of an electrically insulating material so that the second contact member 24, which is normally located at a distance of, for example, l-3 mm below the first contact member 20, is insulated electrically with respect to the first contact member 20.
  • an electrical conductive bar 28 extends along the carrier 13, and is insulated electrically from the carrier 13 by insulation 27.
  • a further electrical conductor 29 is soldered, whose other end is soldered to the second contact member 24.
  • Corresponding conductors 29 are connected from the bar 28 to other second contact members 24, which are not visible, these other second contact members being respectively associated with respective other bobbin grippers, not visible in FIG. 1.
  • the visible second contact member 24 is thus disposed in an electrical circuit 30 (FIGS. 1, 2), which is supplied by a power supply 31. One terminal of the power supply 31 and the carrier 13 is grounded.
  • the other terminal of the power supply 31 is conductively connected to the bar 28 via an electrical relay 32 and a pilot lamp 33, which is connected in parallel with the relay 32.
  • the function and purpose of the relay 32 is to initiate the safety routine whenever the second contact member 24 comes into contact with the first contact member 20.
  • the safety routine in the case of the detailed circuit shown in FIG. 2, consists of the arrest of an electric drive motor 34, this drive motor being the one which drives or controls the mechanism, not shown in further detail, which effects programmed changes of position of the carrier 13.
  • the stopping of the motor 34 is achieved by the action of the relay 32, which opens normally closed switch 35 in the electrical supply circuit for the motor 34, each time it is activated, as is diagrammatically illustrated by the dotted lines in FIG. 2.
  • the remaining electrical circuitry of the motor 34 is shown in FIG. 2 as a block 36.
  • switches 37 are shown schematically in FIG. 2 by the conventional switch symbols for the purpose of simplicity and clarity,
  • the safety device of the gripper changing apparatus includes one or more of the switches 37, the remainder of the circuit 30 and the switch 35.
  • the operation of the safety device is as follows:
  • pilot lamp 33 This safety routine is also indicated optically to the service personnel by pilot lamp 33. It is to be appreciated, however, that the circuit element 33 could be an acoustical transducer which would sound an audible alarm or that such a transducer could be provided in addition to the pilot lamp 33.
  • the elastic mounting for the bobbin gripper 14 is effected by an elastic spacer 23
  • a switch 37' is formed by an inverted cup-shaped first contact member 20 and a disc-shaped second contact member 24' acting as a sensor of the safety device, and its electric circuit 30 all conform in substance and function to corresponding parts used in the embodiment of FIGS. 1 and 2.
  • the circuit 30, shown in FIG. 3 differs from the circuit 30, shown in FIG. 1, in that no pilot lamp is provided and the second contact member 24 disposed on the bobbin gripper 14 is developed, as shown in FIG. 4, as a resilient disc having radial elastic segments 39.
  • the segments 39 are formed by narrow radial slots 40 in the disc.
  • the second contact member 24' is fastened between a shoulder 41, connected rigidly to the gripper 14, which shoulder is integral with a threaded stud 42, on the one hand, and washer-like member or tensioning disc 43, screwed onto the threaded stud 42, on the other hand.
  • the flat lower surface of elastic spacer 23 is fastened to the tensioning disc 43 by means of glue or the like.
  • an annular disc 44 is fastened on the upper end of elastic spacer 23, also by means of glue or the like.
  • the disc 44 is fastened to the interior bottom of the inverted cup-shaped first contact member 20 by means of soldering, welding or the like.
  • the cross channel 17 leading to the interior of the bellows 15 of the bobbin gripper 14, serving as the passageway for fluid under pressure, is formed partially, as in FIG. 1, by a central bore through the elastic spacer 23.
  • a rigid holder 26, carrying the bellows 15 of the bobbin gripper 14, has an external diameter which is somewhat smaller than the inside diameter of the bobbin 19.
  • the initiation of the safety routine can occur in a number of ways. Firstly, the safety routine can proceed as a result of deformation of elastic spacer 23, as described in connection with FIG. 1. Secondly, the safety routine can also be initiated, however, in the exemplary embodiment of FIG.
  • the holder 26 of the bellows is fixedly connected to the carrier 13 by a fixed connecting member 45 which has a threaded, axially bored stud extending into the carrier 13.
  • the diameter of the holder 26 is also smaller than the inside diameter of the bobbin 19.
  • An electrical circuit 30, which can correspond to circuit 30 of FIG. 1 is provided.
  • An axially movable metallic contact disc serves as a second contact member 24" carried by the fixed connecting member 45.
  • the second contact member 24" is pressed against the flat upper side of the holder 26 by means of a helical, resilient spring 46.
  • spring 46 It is to be understood that other types of springs and the like can be provided in place of spring 46; for example, a disc spring, a resilient elastic spacer or the like may be substituted for the spring 46.
  • a contact rail or bar 47 Spaced above the second contact member 24", there is disposed on the carrier 13 as a first contact member, a contact rail or bar 47 extending in the longitudinal direction of the carrier 13, Le. perpendicular to the plane of FIG. 5.
  • the rail or bar 47 is operatively associated with all of the bobbin grippers 14 carried by the carrier 13.
  • the contact rail or bar 47 is electrically insulated from the carrier 13 by means of insulation 49 and is connected to one terminal of the power supply 31 via a pilot lamp 33 and a relay 32 connected in parallel to the pilot lamp 33.
  • the relay 32 initiates the safety routine as a consequence of its activation.
  • the circuit element 33 could be an acoustical transducer, which could provide an audible alarm signal. If desired, both the pilot lamp and the audible alarm producing transducer could be incorporated in the circuit 30.
  • the bobbin gripper l4 always travels further downwardly, overcoming the frictional force existing between its bellows 15 and the inner wall of the bobbin 19, until such time as the second contact member 24" touches the top of the bobbin l9, and during the further downward motion of carrier 13, there is established a contact between the contact rail or bar 47 and the second contact member 24".
  • relay 32 is activated, initiating the safety routine. Contacts of the relay 32 either arrest the driving motor which moves the gripper 14 or it reverses its drive mechanism.
  • the contact rail or bar 47 has the advantage of constructional simplicity, particularly when a large number of gripper devices is provided on the carrier 13. How ever, it is, of course, possible to provide elecrica; switches or the like of different constructions in place of the contact rail or bar 47, these switches being activated by discs 24" which, in that case, do not act as electrical contact members.
  • An automatic bobbin changing apparatus for a textile machine comprising, in combination:
  • bobbin gripper for gripping and holding a bobbin
  • sensing means responsive to the impeding of said bobbin gripper in its predetermined path for developing a control signal, said sensing means including a contact member disposed on said bobbin gripper, which contact member is movable against a biasing force relative to said bobbin gripper;
  • said at least one bobbin gripper is a plurality of bobbin grippers
  • said controllable means effect movement of said plurality of bobbin grippers
  • said sensing means includes a plurality of sensors responsive respectively to the impeding of respective ones of said bobbin grippers in their respective paths for developing respective control signals
  • said means for controlling said means for effecting movement is responsive to any of the control signals.
  • controllable means for effecting movement of said bobbin gripper is coupled to said means for controlling, is responsive to its output signal and becomes deenergized in response to this output signal.
  • controllable means for effecting movement of said bobbin gripper is coupled to said means for controlling, is responsive to its output signal and reverses the direction of movement of said bobbin gripper in response to this output signal.
  • said bobbin gripper includes an inflatable bellows, which can be inserted into the upper end of a bobbin to be gripped, said elastic spacer is coaxial with said bobbin gripper. and said bobbin gripper is disposed at the lower end of said spacer, the upper-end of said spacer being disposed on said carrier.
  • An automatic bobbin changing apparatus for a textile machine the apparatus being particularly useful in conjunction with spinning machines, twisting machines, winding machines and the like comprising, in combination:
  • bobbin gripper for gripping and holding a bobbin
  • sensing means positioned above and at some distance from any bobbin normally gripped by said bobbin gripper and responsive to the impeding of said bobbin gripper in its predetermined path for developing a control signal, said sensing means being activatable by a bobbin grasped by said bobbin gripper, whenever this bobbin is displaced up to a predetermined position on said bobbin gripper and contacts said sensing means after overcoming the frictional force exerted by said bobbin gripper on the bobbin;
  • An apparatus including an electrical circuit and spring means, and wherein said sensing means includes a plate mounted at some distance above any bobbin normally gripped by said bobbin gripper, and plate being mounted axially movable against the effect of said spring means, said plate being axially displaceable by a bobbin to effect closing of said electrical circuit.
  • An automatic bobbin changing apparatus for a textile machine comprising, in combination:
  • bobbin gripper for gripping and holding a bobbin
  • sensing means responsive to the impeding of said bobbin gripper in its predetermined path for developing a control signal
  • An automatic bobbin changing apparatus fora textile machine the apparatus being particularly useful in conjunction with spinning machines, twisting machines. winding machines and the like comprising, in combination;
  • sensing means responsive to the impeding of said bobbin gripper in its predetermined path for developing a control signal wherein said sensing means includes:
  • a first ring-shaped electrical contact surface disposed at some distance above any bobbin grasped by said bobbin gripper, said first ringshaped electrical contact surface being approximately coaxial with the axis of said gripper;
  • said first electrical contact surface includes a multitude of distinct contact surfaces which are electrically connected with one another and are distributed concentrically around the axis of said bobbin gripper.
  • An apparatus including an elastic spacer positioned between said carrier and said bobbin gripper, said spacer being a pad of elastomeric material.
  • controllable means for effecting movement of said bobbin gripper is coupled to said means for controlling, and is responsive to its output signal and reverses the direction of movement of said bobbin gripper in response to this output signal.
  • said at least one bobbin gripper is a plurality of bobbin grippers
  • said controllable means effect movement of said plurality of bobbin grippers
  • said sensing means includes a plurality of sensors responsive respectively to the impeding of respective ones of said bobbin grippers in their respective paths for developing respective control signals
  • said means for controlling said means for effecting movement is responsive to any of the control signals.
  • controllable means for effecting movement of said bobbin gripper is coupled to said means for controlling, is responsive to its output signal and becomes deenergized in response to this output signal.
  • controllable means for effecting movement of said bobbin gripper is coupled to said means for controlling, is responsive to its output signal and reverses the direction of movement of said bobbin gripper in response to this output signal.
  • said bobbin gripper includes an inflatable bellows, which tached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Manipulator (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Treatment Of Fiber Materials (AREA)
US374136A 1972-06-27 1973-06-27 Bobbin changing apparatus Expired - Lifetime US3895482A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2231377A DE2231377C3 (de) 1972-06-27 1972-06-27 Selbsttätige Hülsenwechseleinrichtung an einer Spinn- oder Zwirnmaschine

Publications (1)

Publication Number Publication Date
US3895482A true US3895482A (en) 1975-07-22

Family

ID=5848916

Family Applications (1)

Application Number Title Priority Date Filing Date
US374136A Expired - Lifetime US3895482A (en) 1972-06-27 1973-06-27 Bobbin changing apparatus

Country Status (8)

Country Link
US (1) US3895482A (lt)
JP (1) JPS5525102B2 (lt)
CH (1) CH555420A (lt)
DE (1) DE2231377C3 (lt)
FR (1) FR2190954B1 (lt)
GB (1) GB1431838A (lt)
IT (1) IT989252B (lt)
SU (1) SU521850A3 (lt)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014161A (en) * 1976-05-26 1977-03-29 Platt Saco Lowell Corporation Stop-motion device for automatic doffer apparatus
US4777792A (en) * 1986-01-28 1988-10-18 Fratelli Marzoli & C. S.P.A. Gripping device for tubes or the like, for apparatus for automatically replacing these in textile machines
US5014505A (en) * 1987-08-18 1991-05-14 Rieter Machine Works, Ltd. Apparatus for changing bobbin tubes and tube gripper therefor
US5022223A (en) * 1988-09-23 1991-06-11 Maschinenfabrik Rieter Ag Method of and apparatus for automatically exchanging bobbins at a flyer
US5029438A (en) * 1987-08-18 1991-07-09 Rieter Machine Works, Ltd. Apparatus for changing bobbin tubes and tube gripper therefor
US5172540A (en) * 1987-08-18 1992-12-22 Rieter Machine Works, Ltd. Apparatus for changing bobbin tubes and tube gripper therefor
US5203155A (en) * 1990-11-23 1993-04-20 Zinser Textilmaschinen Gmbh Tube-sensing device for doffing and donning apparatus
US6260783B1 (en) * 1998-02-03 2001-07-17 Georgia Tech Research Corp. Automated yarn creeling device
US7552690B1 (en) * 2003-09-24 2009-06-30 Roslyn Judith Chancey Bobbin extractor
US8894115B2 (en) * 2012-12-14 2014-11-25 Philip L. Lundman Inflatable lift cylinder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1005233B (it) * 1973-10-12 1976-08-20 S Spa Off Perfezionamenti ai bracci porta rocche con contropunte particolar mente per roccatrici automatiche e bracci cosi perfezionati
JPS58139747A (ja) * 1982-02-16 1983-08-19 Ebara Infilco Co Ltd イオン交換樹脂の移送方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462934A (en) * 1967-04-11 1969-08-26 Zinser Textilmaschinen Gmbh Apparatus for gripping bobbins on textile machines
US3633959A (en) * 1968-08-05 1972-01-11 John K Mccollough Bobbin grasper
US3791124A (en) * 1971-06-18 1974-02-12 Rieter Ag Maschf Method and apparatus for controlling the doffing of bobbins and the donning of tubes on spindles of ring spinning and ring twisting machines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793818A (en) * 1971-12-02 1974-02-26 Ishikawa Seisakusho Kk Doffing and donning apparatus usable for textile machines such as draw-twisters

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462934A (en) * 1967-04-11 1969-08-26 Zinser Textilmaschinen Gmbh Apparatus for gripping bobbins on textile machines
US3633959A (en) * 1968-08-05 1972-01-11 John K Mccollough Bobbin grasper
US3791124A (en) * 1971-06-18 1974-02-12 Rieter Ag Maschf Method and apparatus for controlling the doffing of bobbins and the donning of tubes on spindles of ring spinning and ring twisting machines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014161A (en) * 1976-05-26 1977-03-29 Platt Saco Lowell Corporation Stop-motion device for automatic doffer apparatus
US4777792A (en) * 1986-01-28 1988-10-18 Fratelli Marzoli & C. S.P.A. Gripping device for tubes or the like, for apparatus for automatically replacing these in textile machines
US5014505A (en) * 1987-08-18 1991-05-14 Rieter Machine Works, Ltd. Apparatus for changing bobbin tubes and tube gripper therefor
US5029438A (en) * 1987-08-18 1991-07-09 Rieter Machine Works, Ltd. Apparatus for changing bobbin tubes and tube gripper therefor
US5172540A (en) * 1987-08-18 1992-12-22 Rieter Machine Works, Ltd. Apparatus for changing bobbin tubes and tube gripper therefor
US5022223A (en) * 1988-09-23 1991-06-11 Maschinenfabrik Rieter Ag Method of and apparatus for automatically exchanging bobbins at a flyer
US5203155A (en) * 1990-11-23 1993-04-20 Zinser Textilmaschinen Gmbh Tube-sensing device for doffing and donning apparatus
US6260783B1 (en) * 1998-02-03 2001-07-17 Georgia Tech Research Corp. Automated yarn creeling device
US7552690B1 (en) * 2003-09-24 2009-06-30 Roslyn Judith Chancey Bobbin extractor
US8894115B2 (en) * 2012-12-14 2014-11-25 Philip L. Lundman Inflatable lift cylinder

Also Published As

Publication number Publication date
IT989252B (it) 1975-05-20
DE2231377A1 (de) 1974-01-10
DE2231377C3 (de) 1979-08-02
FR2190954A1 (lt) 1974-02-01
DE2231377B2 (de) 1978-12-07
JPS5525102B2 (lt) 1980-07-03
JPS4954637A (lt) 1974-05-28
GB1431838A (en) 1976-04-14
CH555420A (de) 1974-10-31
SU521850A3 (ru) 1976-07-15
FR2190954B1 (lt) 1977-02-18

Similar Documents

Publication Publication Date Title
US3895482A (en) Bobbin changing apparatus
US2599256A (en) Yarn twisting machine
KR101822440B1 (ko) 와이어 피더 및 이를 이용한 스프링 제조공정
US4160360A (en) Optical strand sensor for detecting a filament being wound and twisted on a spool
US5170953A (en) Servicing apparatus which can be moved along a spinning machine and has devices for seeking a yarn end from a spool package
JPH0154267B2 (lt)
US5535630A (en) Shock load sensor
US3835633A (en) Gripper for yarn carriers and the like
US3952554A (en) Yarn feed stop motion
US5277354A (en) Device for monitoring wire supply and consumption
US2402739A (en) Winding machine
JPS60259329A (ja) ワイヤ放電加工機におけるワイヤ断線検出装置
EP0447085B1 (en) Device for monotoring wire supply and consumption
CN211689337U (zh) 一种新型倍捻机
US4691508A (en) Spinning or twisting machine with a drive belt performance monitor
CN210853073U (zh) 编带机及测试编带一体机
SU643558A1 (ru) Устройство дл подачи шпуль к пр дильным и крутильным машинам при замене наработанных паковок
US3510862A (en) Signalling means for use with a moving tender
US1068573A (en) Protective device for printing-presses or the like.
US2756296A (en) Automatic electric stopping device for textile machines in case of breaking of a roving
US5058817A (en) Apparatus for controlling rotation of drum
US3550876A (en) Creel
US5014505A (en) Apparatus for changing bobbin tubes and tube gripper therefor
GB942791A (en) Improvements in textile spinning and twisting machines
US4218897A (en) Device for indicating a condition of nearly exhausted yarn reserve on a bobbin to stop automatically a hosiery knitting machine