摘要:
A take-out roll, spreader roll or equivalent roll for a web-like material having three parts linked with one another, namely, a middle part and two end parts, one on each side of the middle part. The middle part and end parts are pivotal with respect to one another for the purpose of bending the roll into a desired curved shape. The middle part is constructed to operate as a revolving axle of the roll which is mounted revolvingly on support members by end bearings. The end parts are mounted in the area of their axial inner ends on the middle part by articulation devices. The end parts are further mounted in the area of their axial outer ends, revolvingly and movably in a radial direction on support parts which are separated from the revolving parts of the roll by bearings arranged inward of the end bearings in the axial direction of the roll.
摘要:
The present invention relates to paper feed rollers required to transfer papers in printers, facsimiles, copiers, etc. with accurately, and provides novel paper feed rollers which are lighter, less expensive and mass-producible with larger diameters as compared with conventional paper feed rollers. The paper feed roller according to the present invention includes a rotary shaft, a cylindrical roller portion formed by press molding a mixture of a hydraulic composition, followed by curing and hardening, and integrated with an outer periphery of the rotary shaft.
摘要:
A winding machine having a longitudinal cutting device for sectioning the web of material into individual webs includes two winding stations each provided with a winder bracket movable with respect to the web of material and having a guide head connected to a rotary drive and insertable into the winding core between the longitudinal cutting device and the winding stations a driven cylinder is arranged against which a roller having individual freely run segments, can be pressed for frictionally engaging the individual webs.
摘要:
A combination roll has a roll shaft and a plurality of roll units mounted on the roll shaft. The roll units include an end roll unit which can be locked to the roll shaft. Each of the roll units comprises a roll portion formed with a contact portion and a shaft inserting portion which has engaging means at each of opposite ends thereof. The diameter of the shaft inserting portion is less than the diameter of the roll portion. All of the roll units are engaged by the engaging means, thereby forming an assembled roll, and are locked to the roll shaft through the end roll unit.
摘要:
An object is to provide a liquid-removing apparatus capable of sufficiently removing liquid adhering to packaging material (11). The liquid-removing apparatus includes a packaging material (11) having a projection formed at a predetermined position; first and second squeeze rollers (23, 33) which form a squeeze portion (P1) for removing liquid adhering to the packaging material (11); and an elastic body. The second squeeze roller (33) has main roller portions (53, 54) and a retractable roller portion (55) which retracts when the projection reaches the squeeze portion (P1). The elastic body urges a tubular sleeve (64) provided on the retractable roller portion (55) toward the packaging material (11). When the projection reaches the squeeze portion (P1) during transportation of the packaging material (11), the sleeve (64) is pushed by the projection and thereby decentered, so that the retractable roller portion (55) is retracted. As a result, interference between the projection and the second squeeze roller (33) is prevented, and the packaging material (11) can be nipped by the first and second squeeze rollers (22, 33).
摘要:
An object is to provide a liquid-removing apparatus capable of sufficiently removing liquid adhering to packaging material (11). The liquid-removing apparatus includes a packaging material (11) having a projection formed at a predetermined position; first and second squeeze rollers (23, 33) which form a squeeze portion (P1) for removing liquid adhering to the packaging material (11); and an elastic body. The second squeeze roller (33) has main roller portions (53, 54) and a retractable roller portion (55) which retracts when the projection reaches the squeeze portion (P1). The elastic body urges a tubular sleeve (64) provided on the retractable roller portion (55) toward the packaging material (11). When the projection reaches the squeeze portion (P1) during transportation of the packaging material (11), the sleeve (64) is pushed by the projection and thereby decentered, so that the retractable roller portion (55) is retracted. As a result, interference between the projection and the second squeeze roller (33) is prevented, and the packaging material (11) can be nipped by the first and second squeeze rollers (22, 33).
摘要:
A spreading roll having a simplified and inexpensive configuration is provided. The spreading roll includes a curved shaft and several successive roll segments mounted on the curved shaft. Rolling bearings are supported by a sleeve around the shaft and rotatably support the roll segments. The ends of the roll segments are connected together by coupling elements formed by a rubber ring, an inner sleeve situated inside the ring and metal bracing sleeves situated at the corners on the outer circumference of the rubber ring. As the spreading roll rotates, the rubber rings of the coupling elements yield and the bracing sleeves form a tight joint with the roll segments.
摘要:
A dancer bar including a plurality of segments flexibly linked together is provided. Preferably, the segments are selectively connectable to provide a dancer bar having a length which substantially equals the width of an associated web of sheet material. A sheet material feed mechanism including the segmented dancer bar and an apparatus for performing a work operation on sheet material including the feed mechanism are also provided.
摘要:
Contact roller systems comprising several hollow cylindrical roller segments (2) that are mounted next to each other on the front face side in such a way that they can rotate freely on a continuous shaft (1) are already known per se in winding machines. According to the invention, the internal bearing parts of a roller segment (2) terminate on at least one axial end at a distance (4) from the front face of the roller segment (2). A free space is thus formed, whereby parts of a support bearing (5) which supports the shaft (1) and/or parts of an adjusting lever (6) can be arranged therein. The support bearing (5) and/or the adjusting lever (6) have an annular groove (7) in which the end of the roller segment (2) can rotate in a contactless manner. It is possible to keep the gap between two adjacent roller segments (2) as small as possible in order to avoid markings, while still allowing the support bearing (5) and/or adjusting lever (6) to act.