摘要:
A device that is adapted to wind a web of material includes a winding body to which a start of a material web can be connected. The material web is wound by rotation of the winding body which includes two clamping elements that can be displaced with respect to each other. A clamping gap is defined by these two clamping elements and the start of the material web can be placed in this clamping gap. These two clamping elements of the winding body are pressed against one another while clamping the start of the web. A guiding element, such as a plate is provided to guide the material web start to the clamping gap. A method for preparing a material roll is also disclosed.
摘要:
A take-up roller for winding a continuous recording medium has an outer hollow cylindrical tube with a longitudinal slot and an inner hollow cylindrical tube with a longitudinal slot. The inner hollow cylindrical tube is mounted concentrically within the outer hollow cylindrical tube. Two eccentrically mounted weights are fastened on opposite sides of the inner tube slot, keeping the inner tube oriented with its slot facing downward. The outer tube is driven by a drive motor to rotate the outer tube relative to the inner tube until a sensor signals the drive motor to stop upon the alignment of the tube slots. A leading edge of the recording medium is inserted into the center of the inner tube though an opening formed by the alignment of the slots. Then, the outer tube is rotated relative to the inner tube, thereby closing the opening and wrapping the recording medium around the edge of the outer tube slot. A friction force is created between the tubes, due to the presence of the media between the tube slot edges, causing the inner tube to rotate with the outer tube. A one-way roller clutch system connects the tubes and prevents any relative rotation between the tubes to maintain the opening in its closed position during winding.
摘要:
A spool (10) where an elongated metal element (25) is to be wound, comprises a core ( 12 ) and two flanges ( 14 ). The core (12) and/or the flanges (14) comprise at least one reference mark (18). The core comprises at least one fixing hole (16). At least one of the fixing holes (16) is located at a predetermined distance from the reference mark (18). The leading end of the elongated element is plastically bent. Next the reference mark (18) is located and the bent part of the elongated element (25) is put into one of the fixing holes (16). Thereafter the elongated element (25) is wound on the spool (10).
摘要:
A spool for a strip of film or other web material has a core and an elongate slot through the core for receiving an end portion of the strip. A separate keeper for retaining the end portion in the slot includes a first portion that is snapped into the slot and holds the end portion firmly against one surface of the slot. The keeper has a second portion that is engageable with the strip outside the slot for holding the strip against an arcuate portion of the core. The keeper can be latched in either a first position in which the keeper is partially inserted into the slot during insertion of the end portion into the slot, or a second position in which the keeper is fully inserted into the slot.
摘要:
Device for the automatic rewinding of material delivered in sheets in heliographic and similar machines, particularly for heliographic machines for textile industries, comprising a winding member consisting of a hollow cylindrical casing with a C-shaped cross section, within which is rotatably mounted a shaft equipped with a plurality of radial tabs arranged at regular intervals along its entire length.The outer edge of the hollow casing and the tabs define a slot into which the leading edge of the sheet to be rewound around the hollow casing is initially inserted. The rotation of the shaft first causes the leading edge of the sheet to remain firmly gripped between the tabs and the edge of the hollow casing, and then pulls the hollow casing round, thus making the sheet of material wind around the latter.
摘要:
A winding drum for a flexible tape comprises two side faces and peripheral wall defining spaced first and second grooves. The first groove has a longitudinal axis parallel to the axis of rotation of the drum and has an opening at one end thereof that is defined by one of the side faces and is closed at the other end thereof. First and second pins are located respectively in the first and second grooves whereby an end of a flexible tape may be bent to form a loop and passed around the first pin in the first groove and the tape then passed over the peripheral wall of the drum and the free end of the tape and passed around the second pin in the second groove before being wound around the drum.
摘要:
This invention relates to a vacuum reel spool for use on a paper machine reel. The surface of the reel spool is perforated along substantially its entire length and the vacuum produced therein urges the ballooned portion of web formed between a previously wound roll and a new reel spool into the nip between the reel drum and reel spool at high speeds thereby permitting the reel to operate continuously at papermaking speeds.
摘要:
A mandrel with a biasing assembly that extends the mandrel's life for turning of sheet materials. The mandrel's biasing assembly having a pivot, sleeve, cup and screw that connect a gripper to the arbor and works to alleviate the forces that can cause damage to such a winding machine.
摘要:
A device includes a winding rotary member having a cylindrical shape; a holder having a rotating member, which is provided in the vicinity of a cylindrical surface of the winding rotary member, capable of nipping and conveying the sheet; a first driving mechanism configured to rotate the winding rotary member; and a second driving mechanism configured to rotate the rotating member. The winding rotary member rotates with the sheet is nipped with the rotatable holder, whereby the sheet is wound around the winding rotary member.