摘要:
A method and apparatus for controlling or regulating a folder of a printing press is disclosed. Setpoint fold values are generated on the basis of prepress stage data and printed copies are measured in the folded and/or partially folded state in order to determine actual fold values. The actual fold values which are determined in the process are compared with the corresponding setpoint fold values and, as a function of this comparison, the folder is set automatically in such a way that the actual fold values correspond to or are approximated to the setpoint fold values in subsequent printed copies.
摘要:
A machine for securing a thermoplastic coated paper handle to a paper cup having a seam on one side of the cup, the machine including a die assembly for forming paper handles having a backing strip and a wing on each side of the strip, a mandrel turret having a number of mandrels spaced about the perimeter of the turret, each of said mandrels having a blade assembly projecting outwardly from the surface of the mandrel to engage the seam in the cup, and a wheel assembly for rotating the cups on the mandrel to move the seam in the cup into engagement with the blade assembly, and a transfer turret for transferring the paper handles from the die assembly to the mandrel turret for attachment to the cups.
摘要:
In the apparatus used for producing cuboid (cigarette) packs of the hinge-lid type having bevelled or rounded longitudinal edges (37,38,39,40) the blank is brought into an angular intermediate folding position thereby erecting the side tabs and forming the bevelled or rounded longitudinal edges. For this purpose, the blank is pressed, by means of a shaping punch (58) with punch plate (59), into a pocket (47) of a folding turret (46), the blank parts being folded, thereby forming the bevelled longitudinal edges, by means of stationary or movable folding tools.
摘要:
A machine for making envelopes and the like includes apparatus for folding both a top closure flap and a second latex fold flap in the bottom flap portion of the envelope blank. A feed roll feeds the envelope blank with the closure flap trailing onto a closure flap cylinder. The body of the envelope blank is conveyed along the surface of a folding cylinder onto support slats until the envelope blank front edge engages a stop member. The closure flap is engaged by vacuum on the closure flap cylinder and the latex fold flap is engaged by a second flap cylinder. A cam actuated tucker engages the bottom flap adjacent the score line for the latex fold flap and urges the envelope blank downwardly on the support slats. The rotating folding cylinder engages the body portion of the envelope blank and conveys the envelope blank toward a delivery device. Both the closure flap and the latex fold flap are engaged by the respective closure flap cylinders and are folded along the score lines by rotation of the respective flap cylinders in a direction opposite to the folding cylinder. Both of the flaps are creased along the fold line by the closure flap cylinder. The envelope blank is then transferred from the folding cylinder to a suitable spiral delivery.
摘要:
The outer surface of the body of a fiber can is scored by cutting through a portion of its thickness from the outside thereof with a cutting blade affixed to the lower end of a seaming roll which simultaneously crimps the lid to the body wall of the can. The cutting blade is circular in configuration and is positioned to rotate on a center which is offset laterally with relation to the center shaft of the seaming roll. The distance that the rotation axis of the cutting blade is offset can be selectively changed to precisely control the cutting depth.
摘要:
A method and device for producing boxes from paper or cardboard is provided. The boxes include a cut-out shape in the form of the bottom or the lid, with a lateral wall stuck thereto. The lateral wall is formed from a strip having a beginning, an end, and connection tongues are bent by up to 90° C. Then, the beginning of the strip is applied and fixed to the lateral surface of a cylindrical female mold having a cross-section corresponding to the cross-section of the box, by means of a male mold. Then, the female mold is turned. The strip is sucked onto the lateral surface and held in place by means of a vacuum. After an adhesive has been applied to the beginning or end of the strip, the beginning and end of the strip are stuck together. Then, a cut-out shape in the form of the bottom or the lid, which has previously had adhesive applied to the periphery thereof, is pressed onto the connection tongues. Once the adhesive has hardened and the vacuum has been stopped, the finished box can be removed from the female mold.
摘要:
Containers (2) for food products are manufactured employing a system that includes a feed station (4) supplying a succession of tubular elements (2a), and a heat sealer (10) positioned to close and secure a first open end (2b) of each tubular element (2a) that coincides with the base of the container. The sealing operation occurs at a station associated with a conveyor (3) consisting in a wheel (11) rotatable in a feed direction (B) along a path (P) passing both through the feed station (4) and through the station occupied by the heat sealer (10). The tubular elements (2a) are carried by radial elements (13) of the wheel (11) such as can be indexed between a first operating position, where the tubular elements (2a) are taken up from the feed station (4), and a second operating position in which the open end (2b) is offered to the heat sealer (10).
摘要:
Apparatus for folding two opposite edges of a packaging blank into protective buffers. The edges are inserted into slots in each arm and the arms are then moved together and simultaneously rotated about their longitudinal axes, the edges of the blank being folded around the arms. The folded blank may then be slid from the arms.
摘要:
A device for manipulation of flat articles such as sheets of paper, plastic, cardboard and the like has at least one adjustable conveying unit with conveying elements, especially rollers. The at least one conveying unit is adjustable between at least two positions for performing at least two manipulations on the article. At least one switch that is adjustable between at least two positions for performing at least two manipulations on the article is provided.
摘要:
A tissue product, which includes a carton and a stack of tissues, is provided with a flattened arched-shaped sheet that supports the stack of tissues. As the tissues are withdrawn from the carton and the weight of the tissue stack is reduced, the flattened arch-shaped sheet gradually assumes its normal arched shape, thereby raising the stack of tissues within the carton. Raising the stack substantially reduces or eliminates “fall-back”, which is a common dispensing problem, as the stack height is reduced.