Abstract: Described is a device for feeding and accumulating film (2) made of plastic material wound on a reel to a bagging machine (4), comprising a frame (9), means for supporting at least one reel (3) of film (2) made of plastic material supported by the frame (9), a first and a second group (G1, G2) of rollers for redirecting the film (2) made of plastic material, the rollers of the first and second group (G1, G2) being arranged in two respective rows parallel to each other, the film (2) being designed to be wound alternatively on the rollers of the two groups (G1, G2) forming a plurality of loops.

Abstract: An accumulating apparatus (4) has an upper arm (51) in which a plurality of upper rollers (511) are arranged, and a lower arm (52) in which a plurality of lower rollers (521) are arranged. An upper gear (61) is fixed to the upper arm and a lower gear (62) is fixed to the lower arm. The upper gear is engaged with the lower gear so that the upper arm and the lower arm are simultaneously moved in opposite directions with respect to a vertical direction. Therefore, when moving the lower arm in the vertical direction, influence of the weight of the lower arm is canceled by the weight of the upper arm, and a force to move the lower arm upward can be reduced. As the result, an air cylinder (63) for changing a distance between the upper arm and the lower arm can be downsized.

Abstract: A band is introduced into the pit entrance of a looping pit. This band is released from the looping pit at a pit exit. A segment of the band can thereby be buffered. The entrance-sided drag that exists in the band at the pit entrance is measured by an entrance-sided drag measuring device; the exit-sided drag that exists in the band at the pit exit is measured by an exit-sided drag measuring device. The values of the entrance-sided and exit-sided drags are passed to a control device. Depending on the entrance-sided and exit-sided drags, a control signal for at least one driven roller arranged between the pit entrance and exit is identified by the control device and is passed to the at least one driven roller. The band buffered in the looping pit is acted upon by the at least one driven roller according to the control signal.

Abstract: A method for assembly of a stay includes a series of steps that include connecting in the vicinity of an anchoring zone, a new group of N reinforcements to a shuttle located within the sheath of a stay to be installed. The shuttle is driven towards another anchoring zone by means of driving and guiding means. When the shuttle has arrived substantially in the vicinity of the anchoring zone, and as long as entangling is detected between the driving and guiding means in a portion contained substantially between the shuttle and the first anchoring zone, the shuttle is rotated about its main axis in the opposite direction to the said entangling. The group of N reinforcements is then separated from the shuttle. Each reinforcement of the group is tensioned between the anchoring zones. The preceding steps are repeated until the installation of the reinforcements is completed.

Abstract: A system and process for unwinding materials in forming absorbent articles is described. The system includes an unwind device in association with a festoon. The festoon is for accumulating a determined length of material. The amount of material contained in the festoon is increased or decreased depending upon the rate at which a roll of material is unwound in relation to the rate at which the first material is fed into a downstream process. In order to minimize the capacity of the festoon and in order to minimize tension swings in the festoon, the festoon includes a plurality of drive devices associated with selected guide rolls contained in the festoon. The drive devices can accelerate and/or decelerate the guide rolls in response to rate increases or decreases occurring at the unwind device in relation to the downstream process speed. In one embodiment, each of the guide rolls is controlled independently of the remaining guide rolls in the festoon.

Abstract: A cable unwinder/rewinder with continuous electrical connection which is suitable for use with heavy gauge cable and in a pharmaceutical manufacturing environment. A general embodiment is comprised of a frame; a user-side reel; a slack-side reel and a slack take-up mechanism. Exemplary embodiments of the slack take-up mechanism are a power pivotal arm, a spring loaded arm, a extension spring assembly, a compression spring assembly and a dual real assembly.

Abstract: Systems, methods and apparatus for winding conductive wires for a stator of an electric motor. In one embodiment, a hysteretic tensioning apparatus is utilizing to substantially stabilize tension in a conductive wire supplied to a winding machine. The hysteretic tensioning apparatus includes a support member, a brake member, and four idler arms. The brake member is rotatably mounted to the brake member and configured to engage the conductive wire. The idler arms each are spring mounted to the support member and also are configured to engage the conductive wire. The conductive wire is extended across the support member so that it extends between adjacent idler arms and the brake and is inserted into the winding machine.

Abstract: A vertical strip storage system has a support structure and a storage car connected to the support structure by cables in the fashion of a pulley block so as to be lifted and lowered relative to the support structure. The storage car is provided with a counterweight and with deflection pulleys which deflect and guide an incoming and/or outgoing strip in cooperation with stationary deflection pulleys on the ground. The support structure is a free-standing column without lateral supports and the storage car is a salient vehicle running on the outer surface of the column, wherein the column has an interior and the counterweight is guided in the interior of the column.

Abstract: An apparatus for the intermediate storage of a strap to be supplied and delivered discontinuously in a machine is provided with a supply arrangement for the strap; a storage drum, which is disposed downstream thereof and which comprises an inlet for the strap, an ensuing helical storage channel for the storage of the strap, the radial extension of which exceeds its axial extension, which corresponds to the width of the strap, as well as an outlet, which adjoins the storage channel; and a discharge arrangement for the strap, which is disposed downstream of the storage drum.

Abstract: An apparatus for controlling the tension of a traveling yarn includes a rake tensioner having stationary and displaceable yarn tensioning elements in engagement with the traveling yarn, and an electrical coil to which electrical current is supplied by a regulating device. The displaceable yarn tensioning elements and the electrical coil are disposed on a common pivot lever. The electrical coil is pivotable in an air gap through which magnetic field lines pass. The tension of the traveling yarn is controlled as a function of the current supplied to the electrical coil. The present invention, thusly, improves the control of the tension of the traveling yarn in spinning or bobbin winding machines.