A dispenser for dispensing sheet product is provided including a housing that defines an interior configured to accommodate a source of sheet product and an outlet through which the sheet product is dispensed. The dispenser also includes a first roller that is rotatable and disposed in the housing. A portion of the sheet product is designed to be in contact with the first roller prior to being dispensed through the outlet. The dispenser also includes a knife drum that is rotatable and configured to cooperate with the first roller to dispense the sheet product. The knife drum includes a knife configured to cut the sheet product into individual sheets. The dispenser also includes a spring assembly that may be configured to bias the knife drum toward a predetermined position during rotation of the knife drum.

A substrate-feeding device has at least two acceleration devices, which are arranged one beside the other, beneath a storage region, and having a framework and a lifting frame, which lifting frame can be moved relative to the framework. The at least two acceleration devices are arranged for movement jointly with one another, and with the lifting frame. Each of the acceleration devices has at least one body of rotation, which is driven via a common shaft which has at least two shaft portions arranged one behind the other. Directly adjacent shaft portions are arranged in a state in which they are connected in each case, via a coupling. There are subassemblies provided which each have a deflecting device, a shaft portion and at least one transporting belt and which are each one of fastened on the lifting frame, and are arranged for movement jointly with the lifting frame and are connected to one another by virtue of their shaft portions being connected via couplings to form the common shaft. The invention also relates to a sheet-processing machine.

A chain tensioner (50; 500) for a conveying device (70) of a machine (1; 1) for processing elements in the form of sheets (10), the conveying device (70) includes two lateral chain sets connected to the ends of transverse gripper bars (75) able to grasp the elements (10) and at least one chain-guiding device (90) configured to guide a respective chain set (80); the chain tensioner (50; 500) includes: an actuator (9) controlled by a control unit (8), a movable support (11), a transmission element (12) borne by the movable support (11), a rotary element (13) rotated by the actuator (9) and cooperating with the transmission element (12) in order to exert a thrust force on the movable support (11), the rotary element (13) being rotatable, to adjust the tension of the chain set (80). The actuator (9) is controlled in synchronism with the machine angle (MA). A machine (1; 1) for processing elements and a method for tensioning the chain sets (80) of the conveying device (70) are disclosed.

A refilling device on a stacking magazine (2) comprises a refilling magazine (18) which is disposed above the stacking magazine and has a rotatably drivable shaft (10) on each of two sides of the refilling magazine, the shafts together forming a support for a stack (11), and at least one controllably activatable air nozzle, by way of which air can be blown into the refilling magazine in such a way that metal sheets on the bottom side of the stack (11) can be bent by the air supply in the direction of the stacking magazine.

Disclosed is a bonding machine capable of trimming new and old SMT splice tapes. The bonding machine comprises a supporting plate (1). A new splice tape conveying device (3) and an old splice tape conveying device (4) are arranged facing each other on the supporting plate (1), and each of the conveying devices is provided on either side with a stop block (9) matching the splice tape. A lifting device (8) matching the splice tapes is arranged in the middle of the support plate (1), and a bonding mechanism (7) matching the splice tapes is arranged above the lifting device (8). A cutting device (6) is arranged above the old splice tape conveying device (4). The cutting device (6) comprises a cutting seat (60) arranged on the supporting plate (1), wherein a cutting motor (61) is arranged on the cutting seat (60), the cutting motor (61) is connected to a cutting cam (62), the cutting cam (62) is connected to a cutter (64) via a cutting connecting rod (63), and the cutter (64) cooperates with a cutting slide track (65) arranged on the cutting seat (60). The bonding machine can reuse old splice tapes, thereby reducing the splice cost to a certain extent.

A switching device (130) for transferring and ejecting a plate element (20) in a sorting unit (100), comprises: transport means (132), capable of transporting (A) the plate element (20) from upstream to downstream; a pivot (134), positioned in an upstream portion of the transport means (132), and allowing the transport means (132) to tilt relative to a horizontal transverse axis (R2); and raising means (135), secured in a downstream portion of the transport means (132), for tilting the downstream portion of the transport means (132) between a high first position and a low second position, and vice versa,
so as to switch the plate element (20), respectively upward and downward.

In a destacking device comprising a stacking magazine (2), the respective lowest sheet of a stack (1) of metal sheets is destacked by way of a suction element (5, 15). This element can be moved upward and downward by way of a drive (6). At the end of the upward movement, the respective lowest metal sheet (4) of the stack (1) is gripped by suction power and pulled from the stack. A second suction element (5, 15) is provided, which can be moved upward and downward by way of a drive (6) and by way of which the lowest sheet (4) of the stack (1) can be gripped at the end of the upward movement. The second suction element is driven so as to be leading with respect to the first suction element, so that the respective lowest sheet (4) of the stack (1) can first be pulled from the stack by the second suction element (5), and subsequently by the first suction element (5). In this way, it becomes possible to destack thin sheets having a thickness of only 0.12 mm and a square shape without disruption. The stack is held magnetically in the stacking magazine, which facilitates destacking.

Embodiments provide methods, apparatuses, and systems for compressing media in a media stack. In various embodiments, a paddle moves between various positions. During the move, the paddle is configured to compress the media stack.

A dispenser for dispensing sheet product is provided including a housing that defines an interior configured to accommodate a source of sheet product and an outlet through which the sheet product is dispensed. The dispenser also includes a first roller that is rotatable and disposed in the housing. A portion of the sheet product is designed to be in contact with the first roller prior to being dispensed through the outlet. The dispenser also includes a knife drum that is rotatable and configured to cooperate with the first roller to dispense the sheet product. The knife drum includes a knife configured to cut the sheet product into individual sheets. The dispenser also includes a spring assembly that may be configured to bias the knife drum toward a predetermined position during rotation of the knife drum.

A chain tensioner (50; 500) for a conveying device (70) of a machine (1; 1) for processing elements in the form of sheets (10), the conveying device (70) includes two lateral chain sets connected to the ends of transverse gripper bars (75) able to grasp the elements (10) and at least one chain-guiding device (90) configured to guide a respective chain set (80); the chain tensioner (50; 500) includes: an actuator (9) controlled by a control unit (8), a movable support (11), a transmission element (12) borne by the movable support (11), a rotary element (13) rotated by the actuator (9) and cooperating with the transmission element (12) in order to exert a thrust force on the movable support (11), the rotary element (13) being rotatable, to adjust the tension of the chain set (80). The actuator (9) is controlled in synchronism with the machine angle (MA). A machine (1; 1) for processing elements and a method for tensioning the chain sets (80) of the conveying device (70) are disclosed.