Abstract: A system for deploying a coil of spoolable pipe from a vessel includes a first tower configured to move longitudinally and transversely along a first track coupled to the vessel, a second tower configured to move longitudinally along a second track coupled to the vessel, and a coil drum assembly coupled to the first tower. The first tower is configured to insert the coil drum assembly transversely into an interior channel of the coil when the coil drum assembly is in a retracted position, the coil drum assembly is configured to support the coil when the coil drum assembly is in an extended position and rotate during deployment of the spoolable pipe, and the first tower and the second tower are configured to move the coil drum assembly vertically.

Abstract: A sheet rolling device includes a mandrel that selectively retains the sheet stock between a sidewall of the mandrel and a gripper blade of the mandrel. The sheet rolling device also includes a sensor that detects a presence and an absence of the sheet stock near the mandrel, a controller operably associated with the mandrel so as to cause a motor to rotate the mandrel to wind the sheet stock around the mandrel, and an expansion leaf operably associated with the controller and situated along at least a portion of an exterior of the sidewall of the mandrel. Extension of the expansion leaf away from the sidewall increases an effective perimeter of the mandrel about which the sheet stock may be wound and retraction of the expansion leaf toward the sidewall decreases the effective perimeter of the mandrel about which the sheet stock may be wound.

Abstract: A method, a mandrel and a device for removing coreless rolls of a plastic film. The mandrel comprises a tubular body having a plurality of radial holes, conformed with a chamber for distributing pressurized air, in which a piston suitable for being magnetically coupled with an external drive member slides. When a roll must be removed, pressurized air is supplied to the fore end of the mandrel, and escapes from all the holes to expand the internal turns of the roll which can be taken off without friction. As the roll advances along the mandrel, the magnetically driven piston progressively reduces the volume of the air chamber preventing at the same time the air to escape from the holes that progressively come to lie on the rear side of the mandrel, with consequent saving of compressed air.

Abstract: One or a plurality of coreless rolls of a stretchable plastic film are wound up on a mandrel (10) having a tubular body; the mandrel (10) comprises at least a fore air chamber (14) and a rear air chamber (15) axially aligned, wherein the peripheral wall (11) of the mandrel (10) comprises a perforated zone (16, 17) in correspondence of each air chamber (14, 15). One or a plurality of coreless rolls (B1, B2) of stretchable plastic film are wound up on the mandrel (10) at said perforated zones (16, 17) and air chambers (14, 15); the roll or rolls (B1, B2) are removed by pushing said roll or rolls along the mandrel (10), by supplying pressurized air initially into all air chambers (14, 15) during a first removal step of the roll or the rolls (B1, B2) and selectively disconnecting each chamber (14, 15) from the pressurized air source, starting from the rear air chamber (15) to the fore air chamber (14) at overcoming of each air chamber (14, 15) by said roll or rolls (B1, B2).

Abstract: The invention relates to a reel mandrel (1) comprising radially mobile expansion segments (2) and/or closing strips (4, 13) arranged on the periphery thereof. According to the invention, the reel mandrel (1) is provided with axially arranged guiding grooves (12) on the periphery thereof, and the expansion segments (2) are provided with ribs (6). The invention further relates to a method for fixing and/or maintaining an expansion segment (2) and/or a closing strip (3, 13) on a reel mandrel (1).

Abstract: The invention relates to a method of releasing a reel awe, which is hydraulically restrained by a self-locking effect by means of inwardly located wedge surfaces of expansion elements. Removal of a coil from a reel awe is achieved, without problems, by lifting off the self-locking effect of the expansion elements at least partially or completely by applying longitudinal vibrations acting in an axial direction. The invention also relates to a correspondingly formed device.

Abstract: A coreless roll (12) of a plastic film (10) is directly wound onto a tubular spindle (11); the spindle (11) is provided with an air chamber (11P) having a perforated side wall (11W), which communicate with a pressurised air source (27). At the removal of the roll (12), the inner turns of the roll (12) are radially expanded by feeding a pressurised airflow into the winding spindle (11) and the roll (12); the pressurised air is fed for a length of time required for the removal of the roll (12).

Abstract: The present invention provides an uncoiler apparatus capable of minimizing a waste amount of the total amount of coil, by reducing the damage to the surface of the coil caused by line contact between the coil and a drum when the drum expands to clamp the coil.

Abstract: A winding spindle for mounting a plurality of yarn winding tubes, and which is formed by an inner tube and an outer tube surrounding the inner tube. The inner tube connects to a drive shaft. Between the inner tube and the outer tube, a clamping device is arranged, which comprises a plurality of clamping elements which extend through openings of the outer tube for mounting the winding tubes. The outer tube extending on the circumference of the inner tube is stayed by a plurality of support members that are arranged in an axially spaced apart relationship between the inner tube and the outer tube. To this end, the support members produce a radially acting clamping force between the inner tube and the outer tube.

Abstract: A light weight, filament wound carbon fiber base tube, with external longitudinal rails of a dissimilar material housing gripping elements and wear strips, all affixed to the outside of the base tube. The wear strips are made from an ultra high molecular weight polymer. The gripping elements are pneumatically driven.

Abstract: An adjusting device is mounted for rotation about a central axis and can be axially actuated. The adjusting device can be displaced or shifted between an inoperative position and at least one working position by an axially displaceable fluid-driven piston.

Abstract: A plurality of core mounting outer ring members are each rotationally slidably mounted on a corresponding inner ring member having cam surfaces in the outer surface. A rotating drive shaft has radial pistons and rotates the inner ring member by frictional engagement of the pistons displaced by an inflatable bladder. A plurality of strips in one embodiment are between the bladder and the pistons for providing increased torque on the inner ring member. The outer ring member has a first annular array of bores with core gripping balls resiliently urged radially outwardly to grip a core receiving a winding strip thereabout. A second array of bores in the outer member receive larger core gripping balls which freely displace in the bores. Ramp camming grooves are in the outer surface of the inner ring member, the larger gripping balls are engaged with the grooves and are forced into gripping engagement with the received core when the inner ring member is rotated.

Abstract: Cores can be engaged and disengaged with a plurality of annular devices fitted over a mandrel. The mandrel has fluid passage communicating with a spaced plurality of radially disposed channels. Pistons in the channels can, in response to fluid pressure, extend outwardly in order to bear on the annular devices. Changes in the volume of fluid inside the fluid passage and the channels are substantially equal to the total displacement of the pistons. Each annular device has an inner ring with at least one camming track rotatably mounted inside an outer ring. The inner ring has an inside portion including a material different from material of said outer ring. The outer ring is fitted inside the core and the inner ring is fitted over the mandrel. A gripping member is fitted in an aperture of the outer ring to move along the camming track. This gripping member is outwardly thrustable through the aperture in accordance with the position of the gripping member in the camming track.

Abstract: A winding mechanism for winding a narrower web has a drive shaft with a torque transmitting member fixedly mounted thereon, and a holder rotatably mounted on the drive shaft with a spring disposed around an outer circumferential surface of the holder with cushioning members interposed therebetween. Stoppers are disposed respectively in three chambers defined in the holder. A groove is defined in an inner circumferential surface of a winding core around which the narrower web is wound, and the cushioning members are fitted in the groove. A pressing force of the spring is applied through the stoppers to the winding core which is mounted on the holder.

Abstract: A core shaft having lugs protruding from its outer circumference to grip winding cores such as a paper tube is provided, wherein the movement of the lugs within a shell of the shaft is inhibited thereby to secure concentrical gripping of the winding cores with the core shaft and to prevent from decentering and vibration or runout of the winding cores, eventually enabling a smooth winding or unwinding of a sheet material.

Abstract: A plurality of core mounting outer ring members are each rotationally slidably mounted on a corresponding inner ring member having cam surfaces in the outer surface. A rotating drive shaft has radial pistons and rotates the inner ring member by frictional engagement of the pistons displaced by an inflatable bladder. The outer ring member has a first annular array of bores with core gripping balls resiliently urged radially outwardly to grip a core receiving a winding strip thereabout. A second array of bores in the outer member receive larger core gripping balls which freely displace in the bores. Ramp camming grooves are in the outer surface of the inner ring members, the larger gripping balls engaged with the grooves and forced into gripping engagement with the received core when the inner ring member is rotated. The spring loaded balls provide initial friction load between the core and outer ring members so that the ramp balls can operate to grip the core upon rotation of the inner ring member.

Abstract: A plurality of core mounting ring members are rotationally slidably mounted on a drive shaft which has a central axial bore for receiving settable pressurized air. The ring members have an annular array of bores with core gripping buttons resiliently urged radially outwardly to grip a core receiving a winding strip thereabout. A central groove on an inner surface of each of the ring member is fluid coupled to the gripping button bores and to the drive shaft central bore for urging the buttons outwardly with pressurized air. The button bores are fluid coupled to two annular grooves on each side of the central ring member groove. A chlorinated quad O-ring is in each of the two annular grooves.

Abstract: For a directly driven coiler for winding rolled strip into coils, a piston/cylinder unit is proposed which can be supplied with pressure medium through rotary feeds arranged on a shaft extension or on a coiler shaft.