Abstract:
The register insertion apparatus for sheet-fed embossing machines with position sensors (S1, S2, S3) for detecting printing marks (P1, P2, P3) of a sheet (5), comprises a register plate (15) capable of being pivoted down as feeder table with ventilation openings (20) and vacuum feed lines (21) to a suction apparatus (22) and front stops (12), which are capable of being lowered and actuators (L1, L2, L3) for positioning the register plate in X-direction and in Y-direction. With a register controller (11) the register plate (15) is pivoted down, a gripper bar (8) is brought up to it, the register plate pivoted up again, then a sheet (5) is fed-in and stopped at the front stops (12). Thereupon the register plate is evacuated for sucking on and fixing the sheet on the register plate. Then the positions of the printing marks (P1, P2, P3) are detected by the position sensors, from this the register correction values (X1, X2, Y3) are calculated and the register plate by means of the actuators (L1, L2) in X-direction and by means of the actuator (L3) in Y-direction is moved into the desired position (P1S, P2S, P3S). Then the sheet is gripped by the gripper bar, the register plate (15) is ventilated and the sheet is transported on by the gripper bar. This results in an automatic register correction at high machine speeds and with the highest print quality.
Abstract:
An apparatus for conveying and discharging flat, preferably flexible articles, in particular printed products, the apparatus including a plurality of grippers which can be moved in a conveying direction (F) along a continuous conveying path (U) defined by a conveying mechanism. The grippers include a first gripper jaw and a second gripper jaw, which can assume a clamping position and an open position relative to one another. The first gripper jaw is longer than the second gripper jaw and includes a first gripper part, which in the clamping position interacts with the second gripper jaw, and a second gripper part, which in the clamping position projects beyond the second gripper jaw. The orientation of the first and second gripper parts of the first gripper jaw relative to one another is variable and can be adjusted by a control means.
Abstract:
This is a media transport apparatus using gripper segments that are connected to conveyor belts. These segments grip the leading edges of paper media and pull the media on a path toward a paper exit. Above the conveyor belts are baffle panels that have at least two panel separations. It is through these separations that the gripper segments move as the endless conveyor belts rotate. The gripper segments are provided with shifting structures that can laterally align the paper sheets. The leading edges of the paper are held between a gripper bar and elastomeric rollers.
Abstract:
The invention relates to a method for closing a flat product (14) which comprises a cover sheet which is open on at least one side and at least one printed product which is inserted loosely into the cover sheet, wherein the product (14) is fed to a closing apparatus (15, 15′) in a freely suspended manner or in an overlapping stream, and wherein the at least one open side of the cover sheet is closed in the closing apparatus (15, 15′) exclusively by mechanical action on the cover sheet by means of a closing tool (19, 19′).
Abstract:
The invention relates to a device (1) and a method for conveying flexible, two-dimensional objects (100, 100), in particular printed products, with a plurality of conveyor elements (10) which are movable in a conveyor direction (F) by a conveyor member (20) drivable along a closed revolving path (U) and which are capable of receiving and conveying at least one object (100, 100′). A stabilisation device (30) with at least one stabilisation member (32, 33, 36) is present for stabilising the objects (100, 100′), in particular in regions (B) of the revolving path (U), in which large accelerations occur. The stabilisation device (30) forms a compliant stabilisation line (34′) or stabilisation surface (34) and presses the objects (100, 100′) against the conveyor element (10) at least in a part of the revolving path. By way of this, one prevents the objects from being displaced relative to the conveyor element (10), which may lead to problems with the further processing.
Abstract:
The invention refers to a method and an apparatus for gathering flat printed products by selecting a single printed product from each of a multitude of collections of identical printed products and conveying the selected printed products towards a collecting conveyor (10), which runs along a generally straight line in a first direction (11).To improve the transfer of the flat printed products to the downstream machinery, it is suggested to advance the printed products in a second direction (15) in a continuous flow of printed products with a feeder (1) with feeding elements upstream of the collecting conveyor (10), grip a leading portion (20) of a printed product at the discharge end of said feeder (1) by separating grippers (60) of a transferring conveyor (40) which is also arranged up-stream of the collecting conveyor (10) and transfer the gripped printed product with the transferring conveyor (40) substantially along a path, which takes its course generally along the first direction (11) of the collecting conveyor (10).
Abstract:
The feed apparatus for feeding container blanks into a container forming machine comprises a hopper at or near its first end for holding a plurality of blanks, a selecting mechanism for selecting one of the blanks, a moving mechanism to move the blanks toward the elevated second end and then the machine and a transferring mechanism for rotating the blank from its angled direction to a substantially vertical direction for placement at the machine's receiving station. Preferably, the moving mechanism comprises a pair of parallel chains interconnected by a shaft having a gripping mechanism configured to securely grip the blank. A pivot mechanism pivots the shaft and the gripping mechanism, which is selectively opened to grip the blank below the hopper and release the blank at the machine. Laminating, folding and compressing components are provided to add adhesive, fold and then compress sections of the blank before reaching the machine.
Abstract:
A high-speed envelope transport and insertion machine includes a slip-drive system having a plurality of belts configured to move envelopes along an envelope path at a first speed, an envelope transmission device disposed to input envelopes into the slip-drive system, an envelope stuffing device comprising a registration member and a drive member having a plurality of spaced-apart gripping members disposed to move continously between the slip-drive system and the envelope stuffing device at a second speed less than the first speed. The path of the gripping members and the envelopes crosses within the slip-drive system to permit the gripping member to engage and grip the envelope. The gripping member is configured to release the envelope upon registration of the envelope against the registration member of the envelope stuffing device.
Abstract:
A method and apparatus are provided for high speed manufacture of swatch bearing sheets wherein each sheet is directed through various operating stations via a single set of sheet engaging members. Individual sheets are removed from a stack of sheets at a feeding station. The sheets are aligned into a predetermined position for feeding to the sheet engaging members. A single set of sheet engaging members directs each sheet through an adhesive applying station where glue spots are placed on the sheets at predetermined locations. Each sheet is then advanced by the same set of sheet engaging members through one or more swatch applying stations where swatches are applied to the glue spots on the sheets. The sheets are then discharged from direction via the sheet engaging members at a disengaging station. The sheets are then fed through a pressing station to firmly adhere the swatches to the glue spots on the sheets.
Abstract:
A machine for processing a sheet of printing material contains a first chain conveyor having a first gripper bar for holding a leading edge of the sheet, and a second chain conveyor having a rear gripper bar for simultaneously holding a trailing end of the sheet. A processing device is assigned to the chain conveyors for processing the sheet. A distance changing device is provided for temporarily reducing a gripper distance between the two gripper bars and, consequently, producing a sheet sag required for the processing of the sheet carried out by the processing device. The distance changing device defines a first circulation path of the front gripper bar, determined by the first chain conveyor, and a second circulation path of the rear gripper bar, determined by the second chain conveyor, running locally differently from each other. The processing device can be, for example, a sheet smoother.