Abstract: Method to attach an annular band (11) of adhesive material such as Velcro (hook and loop fastener), felt or similar material onto a substantially cylindrical support (10) onto which it is suitable to wind a product for example for spinning for example of the sliver type in which, the annular band (11) is attached to the support (10) by means of welding along at least one circumference. a substantially cylindrical support of the cop or spool type, onto which it is suitable to wind a product for spinning of the sliver type, includes an annular band onto which is attached a corresponding outer annular band (11) of substantially adhesive material, such as Velcro (hook and loop fastner), felt or similar material, the annular band (11) being attached to the support (10) by means of welding made along at least two circumferences arranged in proximity with the peripheral edges of the annular band (11).

Abstract: A method and apparatus for controlling a yarn winding machine, wherein a yarn is wound at a constant speed to a package on a driven winding spindle. A contact roll lies against the surface of the package. To enable an increasing package diameter, the center to center distance between the contact roll and the winding spindle is changed as a function of a variation in the rotational speed of the contact roll. To this end, the variation of the rotational speed of the contact roll is measured in each of a sequential series of predetermined time intervals T and converted into a control signal for changing the position of either the winding spindle or the contact roll.

Abstract: A device is provided for moving a plurality of fibers parallel to a spooling axis around which the fibers are spooled. The device can include a plurality of lifters adapted to be disposed beneath at least a bottom-most fiber from the plurality of fibers and adapted to be movable parallel to the spooling axis.

Abstract: A ferrite component is provided for forming a ferrite bobbin about which an electric conductor is wound. The component is formed with an enlarged flange portion from which extends a shaft portion that defines a free end. The free end of the shaft portion has at least one outwardly extending projection and at least one recessed hollow which are similarly shaped and dimensioned. Two of the ferrite components are mated together to form the bobbin with the projection of one component extending into the hollow of the other component and vice versa.

Abstract: A yarn winding method and apparatus which is able to suppress vibrations of the package being formed, and which includes a package support spindle and a contact roll which engages the surface of the package. The support spindle and the contact roll are moveable relative to each other during the build of the package so as to accommodate its increasing size, and the mounting structure for the package support spindle or the contact roll is sequentially gripped and released so that the relative movement occurs discontinuously.

Abstract: A method and apparatus for guiding a length of material such as optical fibers or optical fiber ribbons under tension in a fiber optic cable or ribbon manufacturing method. A first embodiment of the present invention requires that certain radii of curvature be maintained or exceeded for either the optical fiber or optical fiber ribbon. In a second embodiment of the present invention, the guide for the length of material is required to conform to a guiding surface.

Abstract: A central magazine (11) of a tube feeding device of a textile machine, for example an automatic cheese winder (1), has a central unit (50) with an integrated tube transfer device and an exchangeable tube storage unit (51) fixed in place on the central unit (50). The tube transfer device comprises a vertically displaceable gripper support (16) with at least one positively controllable tube gripper (17). The storage unit (51) has several storage columns (12 to 15) arranged next to each other, each having a number of feed shafts (22) arranged atop each other. The tube grippers (17) on the gripper support (16) take the tubes (8) from the feed shafts (22) and transfer them to a tube transport carriage (20) of a tube conveying device (10) extending over the length of the machine, which carriage can be displaced between a position above the respective storage columns (12 to 15) of the central magazine (11) and interim reservoirs (9) which are a part of the winding stations.

Abstract: In order to make possible an automatic replacement of full bobbins in a spooling device with continuous thread supply, the supplied thread from the traversing thread guide is lifted and directed to a cutting and suction device. The supplied thread is cut and sucked in. The full bobbin is allowed to roll away from the spooling position on inclined rolling rails. Through the rolling motion of the full bobbin the fall of an empty bobbin into the spooling position is triggered and the supplied thread is attached to the delivered empty bobbin. A device for carrying out this method has a movable thread guide rail, a thread cutting device, a thread suction nozzle, rolling rails for the full bobbin, inclined rails for the empty bobbin and a thread guiding arm which wraps the thread around the empty bobbin.

Abstract: In an apparatus for feeding and delivering a thin web in a longitudinal direction, a web guide for precisely controlling the lateral position of the web includes an assembly formed of a platen and mating cover. The platen is provided with an upper surface having a shallow channel formed therein, the channel being sufficiently deep to receive the thickness of the web. The channel includes opposed parallel edges, either one of which may be designated a reference edge. The channel is dimensioned to be wider than the thin web or film. The platen includes a plurality of shallow grooves extending laterally across the upper surface of the platen and the bottom surface of the channel and spaced longitudinally therealong. The cover includes a generally planar bottom surface that mates with the platen to seal the top of the channel. Air is introduced into the shallow grooves at like ends thereof that are opposite the designated reference edge of the channel.

Abstract: In a method and machine for winding on a continuously fed yarn to form bobbins alternately onto respective tubes on winding spindles on a revolver member, the yarn is guided via a stationary head yarn guide, a traversing device and a contact roller to a first yarn guide to position the yarn at the catch region of the empty tube. A second yarn guide for the yarn end running onto the full bobbin is mounted on a pivotal arm to pivot into the gap between the bobbin and the empty tube. The first yarn guide is arranged on the pivotal arm. The traversing device, the contact roller, the winding spindle and the yarn guides are on one side of the yarn. After pivotal movement of the pivotal arm into the gap the yarn is guided free from the surface of the empty tube and also comes free from the traversing device. During return movement of the pivotal arm the yarn is applied to the catch region of the empty tube with an increase in the wrapping angle.

Abstract: A feeding mechanism for a forging machine includes a roller unit consisting of a pair of feeding rollers. Two rotating shafts are connected respectively and fixedly to the feeding rollers at an end portion, and to outer and inner driven gears at the other end portion. The inner and outer driven gears mesh with each other. A driving gear meshes with the inner driven gear, and rotates reciprocally within a predetermined angular range. The driving gear and the outer driven gear are sector gears. Each of the inner and outer driven gears is mounted on the corresponding rotating shaft by means of a unidirectional bearing so as to convert reciprocal rotation of the driving gear into intermittent unidirectional rotation of each of the rollers. Each of the rollers is provided with a braking member, which includes a circumferentially extending brake plate that presses against an outer periphery of the corresponding roller.

Abstract: A yarn feeder including a storage drum which is held in a stationary manner on a housing, a rotatable winding tube disposed between the housing and the storage drum and having an outwardly facing yarn exit, and a bracket which is rigid with the housing. An opto-electronic sensor is provided at the bracket in alignment with a light inlet/exit zone. At least one wind deflector is provided between the yarn exit and the light inlet/exit zone. The deflector protrudes outwardly beyond the light inlet/exit zone to guide an air stream emerging from yarn exit away from the light inlet/exit zone.

Abstract: In a variable-pitch tape feeder for feeding parts to a pick and place machine used to produce electronic circuit boards, a switch assembly is provided which controls the limits of a shutter movement and the tape advance distance dependent upon the desired pitch. The tape feeder uses a carrier tape to deliver parts to the pick and place machine. The parts are inserted into depressions at regular intervals along the length of the tape. To accommodate tapes of varying pitches, i.e., distances between parts, the feeder uses an electronic control unit to drive the tape feed mechanism and actuate a shutter. The shutter prevents small parts from escaping their respective depressions prematurely. The switch provides a stop surface which limits the rearward travel of the shutter and a flag which is detected by optical sensors to determine the position of the switch and thus the pitch desired by the operator.

Abstract: A winding apparatus for winding a continuously advancing yarn to a package. In this process, the yarn is reciprocated by means of a rotary blade type traversing apparatus along a predetermined traverse stroke. In so doing, the yarn is alternately guided within the traverse stroke along a guiding edge of a main guide plate and along an opposite guiding edge of an auxiliary guide plate. The guiding edge of the main guide plate and the opposite guiding edge of the auxiliary guide plate extend through the traversing plane in opposite directions. The auxiliary guide plate is movable transverse to the traversing plane such that the opposite guiding edge of the auxiliary guide plate extends to a lesser extent or does not extend through the traversing plane.

Abstract: A tube feeding device for cheese-producing textile machines (1), has a tube magazine (11) arranged on the end of the machine, interim tube reservoirs (9) which are part of the winding stations, and a conveying device (10) for distributing the empty tubes (8) to the interim tube reservoirs of the winding stations. The conveying device (10) comprises a track (18) which horizontally extends over the length of the machine and has spaced windows (23), along which a control strip (19), which has correspondingly spaced windows (24), is displaceably seated, as well as a tube transport carriage (20), which can be displaced between the tube magazine (11) and the interim tube reservoirs (9). The tube transport carriage (20) has a magnetically actuable tube gripper device (21), which can be positively controlled by the axial displacement of the control strip (19).

Abstract: A tension control device (10 for tensioning filamentary material (F) being withdrawn from a spool (24) including, a mounting support (11), a spindle (24) receiving the spool and rotatably mounted relative to the mounting support, a control arm (13) rotatably mounted on a shaft (15) in operative relation to the spindle, a brake element (18) mounted on the control arm for selectively retarding rotation of the spindle, a guide roller (16) rotatably attached to the control arm over which the filamentary material being withdrawn from the spool is passed, and a break-away mounted (80) of the guide roller to provide tension relief when the tension in the filamentary material exceeds a predetermined value. A break-away signaling system (95) detects and signals angular movement of the guide roller relative to the control arm.

Abstract: Materials are off-wound from a package by magnetically levitating the package about a centerline, such that the package remains relatively free from rotation; and removing the material from the package in a direction that is approximately parallel to the centerline.

Abstract: A method of finishing a reel of wound yarn with a tail end of yarn hanging from the reel can prevent the tail end from becoming caught up and thus unwinding considerable lengths of yarn from the reel and comprises the steps of unwinding a predetermined length of yarn including the tail end, folding the length forming an eye by means of a connection of distinct points on the predetermined length of yarn adjacent the cylindrical surface of the reel, rotating the reel to form at least one rewound turn of yarn including the first connection of points and connecting the eye projecting from the rewound turn to a point of the predetermined length of yarn which is not rewound so as to form a second connection.