The present invention is directed to a paper feed system. The paper feed system includes: a paper feed apparatus configured to accommodate stacked paper and sense a paper shortage state and a paper replenishment completion state; a communication unit provided to be integrated with or correspond to the paper feed apparatus, and configured to transmit a paper replenishment request signal when the paper feed apparatus senses a paper shortage state and transmit a paper replenishment completion signal when the paper feed apparatus senses a paper replenishment completion state; and a first server configured to communicate with the communication unit. When a change in the weight of stacked paper is detected, a paper support plate is elevated by driving a motor. When a situation in which the paper support plate reaches a set remaining amount height, a paper shortage state signal is transmitted to feed paper.

An apparatus for manufacturing the electrode assembly, in which an electrode and a separator are alternately stacked on a stack table, and the separator is folded in a zigzag shape so that the electrode is disposed between the folded separators to manufacture the electrode assembly, has a separator supplier configured to supply the separator to the stack table, and a separator tension adjuster configured to constantly adjust tension of the separator supplied to the stack table. The separator supplier comprises a separator winding roll around which the separator is wound, and the separator tension adjuster adjusts a supply height of the separator winding roll to adjust the tension of the separator.

A method and an apparatus for producing and drawing-off a woven fabric web (2) with a weaving machine (1) make use of two clamp carriers (7.1, 7.2) with clamps (10.1, 10.2). The clamp carriers are driven back and forth parallel to a drawing-off direction of the fabric web. The clamp carriers are respectively drivable with a pair of drive spindles (14.1, 14.2) arranged so that the web center of the fabric web within the apparatus extends in an area between the two drive spindles of the respective clamp carrier. The fabric web is produced with successive main sections (4.1, 4.2, 4.3, 4.4) and auxiliary sections (3.1, 3.2, 3.3, 3.4, 3.5). The clamps are actuated so that the opening and closing of the clamps takes place only in the time segments of the production in which an auxiliary section of the fabric web is being produced.

An accumulation device is provided with a loading unit, a tensioning unit, an accumulation unit, and unloading unit and a controller. The tensioning unit comprises multiple fixed rollers capable of rolling, and movable rollers capable of rolling and arranged so as to be capable of moving with respect to the fixed rollers. Substrates are conveyed so as to move back and forth alternately between the fixed rollers and the movable rollers in a wrapped state, and a prescribed tensile force is applied to the substrates by a force acting on the moveable rollers in the direction away from the fixed rollers. The controller performs control so as to maintain the positions of the movable rollers in the tensioning unit constant.

A sheet-member separation device includes a first air blower, an attractor, a conveyor, a second air blower, and an adjuster. The first air blower blows air onto a front side of a stack of sheet members in a sheet-member conveyance direction. The attractor attracts an uppermost sheet member floated from the stack of sheet members by the air blown from the first air blower. The conveyor conveys, in the sheet-member conveyance direction, the sheet member attracted by the attractor. The second air blower blows air toward a lateral side of the sheet member. The adjuster moves the second air blower and the attractor together to adjust positions of the second air blower and the attractor in the sheet-member conveyance direction.

An accumulation device is provided with a first roller group which comprises multiple first rollers that can rotate, and a second roller group which comprises multiple second rollers that can rotate and that can move in the direction towards or away from the first roller group. Substrates are conveyed alternately between the first rollers and the second rollers so as to go back and forth in a wound state, and the substrates are accumulated by relative movement of the first roller group and the second roller group in the direction away from each other. The second rollers are supported by a support member which is capable of moving relative to the first roller group, and are independently biased in the direction away from the first roller group by elastic members which are provided on the support member corresponding to each of the second rollers.

An assembly for folding polymeric film for machines for forming pouches and the like includes a fixed frame for supporting a magazine for the polymeric film, an element for folding the film that arrives from the magazine, and at least one heat-sealing device for the stable coupling of juxtaposed portions of the folded film that arrives from the folding element. The folding element is mounted on a carriage, which can translate along a respective guide which is integral with the frame, along the sliding direction of the film, with a speed that is variable in intensity and sign. The at least one heat-sealing device acts on portions folded onto themselves of the film during a temporary stop thereof. The carriage retracts with respect to the sliding direction of the film for the entire duration of the temporary stop step provided for the heat-sealing of the film.

A clamping device (18) for supporting a reel having a tubular core is described. The clamping device (18) comprises a base body (20) with a mounting interface (22) for fixing the base body (20) on a machine frame. Additionally, it has a carrier body (36) configured for being placed inside the tubular core of the reel. The carrier body (36) is rotatably supported on the base body (20) such that the carrier body (36) can rotate with respect to the base body (20) about an axis (38) of rotation. Moreover, a plurality of clamping elements (42) are coupled with an actuation mechanism (76) such that the clamping elements (42) can selectively protrude from an outer circumference of the carrier body (36) and selectively be retracted to be at least flush with the outer circumference of the carrier body (36). Furthermore, a brake mechanism is arranged between the base body (20) and the carrier body (36) for selectively decelerating or blocking the rotation of the carrier body (36) with respect to the base body (20).

In an example, a roller lock may include a lock to engage with a roller of a feed system, and a leadscrew to engage with the lock. The lock may include a coupling to operably engage with a complementary coupling of the roller. The leadscrew may include an advancer to engage with the lock such that the advancer may translate the lock along a longitudinal axis of the roller so that the lock may engage and disengage with the roller to intermittently prevent the roller from rotating in a forward direction.

The invention relates to a vacuum system for securing items in printing machines, comprising a printing table (2) with a perforated surface and, in relation thereto, a vacuum system for securing the items to be printed, which comprises a box structure (8) connected to a suction system and provided with a perforated wall in relation to the surface of the printing table (2), said box structure (8) having lateral panels that vertically close the interior thereof, which panels can be moved in order to adjust the gap between them in relation to the width of the items to be printed.