Abstract:
An apparatus for manufacturing an elastic composite structure for an absorbent sanitary product includes an anvil with weld pattern comprising at least one anchoring region and at least one deactivating region. The anchoring region includes anchoring welds that form anchoring bonds that fuse facing web layers and anchor elastic thread(s) in position relative to the facing web layers. The deactivating region includes a break bar constructed to sever the thread(s). A method of manufacturing the elastic composite structure includes positioning a tensioned elastic thread between web layers, fusing the web layers to form an anchored zone that includes anchoring bonds that fuse the web layers and anchor the tensioned elastic thread therebetween, and cutting the thread to form a deactivated zone between adjacent portions of the anchored zone that is free of tensioned threads. The method further includes fusing the web layers within the deactivated zone.
Abstract:
Described is an ultrasound device for sealing and cutting material (1) in sheets or strips to close containers (2), comprising a sonotrode (3) for emitting mechanical vibrations having a first profile (4) and a contact body (6) having a second profile (12) acting in conjunction with the first profile (4) of the sonotrode (3) to define a sealing and cutting region (5); the first profile (4) of the sonotrode (3) or the second profile (12) of the contact body (6) comprises a first face (7) and a second face (8) joined together in a shared cutting edge (9); the first face (7) has a first angle (a) of inclination relative to a plane (10) in which it lies coincident with a portion of material (1) in sheets or in strips passing in the sealing and cutting region (5); the second face (8) has a second angle (β) of inclination relative to the plane (10) in which it lies; the first angle (a) of the first face (7) has a value different from the value of the second angle (β) of the second face (8).
Abstract:
The present invention provides a feeder cutter that pulls media from a continuous roll of media and feeds it to a print engine. The feeder cutter includes a number of subsystems that draw media from the media source, present the media to the print engine and maintain tension on the media. The feeder cutter isolates the velocity used to feed media from the media source from the velocity used to feed media within the print engine. At the end of a print job, the feeder cutter cuts the media under tension and minimizes the media wasted between print jobs.
Abstract:
A method and apparatus (20) for intermittently cutting a moving target web (26) includes rotating a knife roll (32) having at least one knife member (44) to provide an operative knife-member speed, and rotating an anvil roll (34) having at least one anvil member (46) to provide an operative anvil-member speed. The knife roll and anvil roll have been positioned to provide an operative nip region (30) therebetween, and a substantially continuous target web (26) has been moved at a selected web speed through the nip region. A rotational positioning of the knife member has been coordinated with a rotational positioning of its cooperating anvil member to provide an operative, cutting engagement between the knife member and its cooperating anvil member, thereby cutting the moving web at cut locations which are intermittently spaced along a machine-direction (22) of the target web.
Abstract:
An apparatus for registering lines of termination with indicia in a transported sheet of web material is disclosed. The apparatus comprises a print cylinder and a perforation cylinder. The print cylinder has a position determining system cooperatively associated thereto. The perforation cylinder is in registration relative to the print cylinder based upon an output of the position determining system.
Abstract:
A method and a device for cutting a cellulose web, in which method the cellulose web (W) is guided between a first and a second roll (5a, 5b) rotating against each other and equipped with at least one cutting blade (10, 11). The peripheral speed (u 1 , u 2 ) of at least one roll (5a, 5b), is controlled in such a manner that the peripheral speed (u 1 ) of the first roll (5a) is higher than the peripheral speed (u 2 ) of the second roll (5b), and the cellulose web (W) is cut substantially in the direction of the radius (B) of the rotating rolls (5a, 5b).
Abstract:
A rotary cutter for a rotary cutting apparatus. The rotary cutter includes a shaft and a mantle having at least one cutting member. The shaft is non-rotatable, and the mantle is rotatably mounted to the shaft and can be removed therefrom in an axial direction. The shaft is adapted to be rigidly mounted in a frame part, wherein the mantle is rotatably arranged relative to the shaft. The shaft may be in the form of a single piece, or a pair of axially spaced shaft portions.
Abstract:
A method for controlling the print-to-cut register in a web printing press having at least one print unit (10) printing a web, each print unit having at least one drive (19) driving the print unit independently of the other print units. The method includes presetting a web compensator (50) position so as to set a print-to-cut registration between a print unit and a cross-cutter and controlling the print-to-cut register during printing by controlling the drives of the print units and/or a drive of the cross-cutter. A method for controlling circumferential register, as well as a printing press are also disclosed.
Abstract:
The invention relates to a method and an apparatus for the synchronization of cutting elements (6, 7) in a cross-cutter for a web-like material (8), wherein the web (8) to be cut is fed between rolls (1, 2) provided with the cutting elements (6, 7). The rolls (1, 2) are functionally connected by means of at least one belt-like synchronization element (5) linking the rolls and exterior of the web run (8). The invention relates also to a continuous-action cross-cutter assembly for a web-like material (8), such as a web of pulp or the like, as well as to a continuous-action sheet cutting unit for a pulp drying machine.