Abstract:
Provided is a pair of plates for a rotary processing machine having the following configuration and a method of mounting the same by which the pair of plates can be mounted on the respective outer circumferential surfaces of a pair of cylinders with high precision. When a female recessed plate and a male raised plate are overlapped with each other so as to make processing portions of the female plate correspond to those of the male plate, fitting protrusions are fitted into respective fitting portions. Accordingly, the movement of the fitting protrusions is restricted both in the width direction of the plates and in the mount direction of the plates. Concurrently, guiding protrusions are respectively inserted between corresponding pairs of guide protrusions in the guiding portions. Accordingly, the guiding protrusions are guided so that relative movement of the guiding protrusions is allowed only in the mount direction.
Abstract:
An embossing roller for processing a web material comprises a central axle (53) and a removable and interchangeable outer sleeve (51); the interchangeable sleeve has an essentially cylindrical outer surface provided with protuberances and/or cavities. The axle has radially expandable elements (61) to clamp the sleeve.
Abstract:
A flexible die is used in an embossing apparatus in which a pair of flexible bases (2a, 2b) are respectively wrapped around a pair of cylindrical rollers disposed opposing each other, and a sheet to be processed (S) is passed through between the pair of rollers, thereby performing embossing. The pair of flexible bases (2a, 2b) are constituted by a female flexible base (2a) and a male flexible base (2b) that are mated with each other, a line-shaped convex portion (3a) corresponding to the contour of an embossing processing pattern is formed in the female flexible base (2a), and the convex portion (3b) is formed in the male flexible base (2b), the convex portion (3b) being fitted within the area encompassed within the line-shaped convex portion (3a) of the female flexible base while leaving an interval from the inner circumferential surface of the line-shaped convex portion (3a). A concave portion (30) is formed in the convex portion (3b).
Abstract:
A folded box gluing machine for making folded boxes from blanks includes several processing stations and a conveying mechanism for delivering the blanks through the individual processing stations. The machine also includes an embossing mechanism that includes embossing dies for embossing a script for the blind in the blanks and that is preferably arranged between two processing stations.
Abstract:
An embossing cylinder (10) comprising a central cylindrical body (11) and supports for bearings (12, 12′) projecting laterally from the circular ends of the central cylindrical body (11), wherein the central cylindrical body (11) comprises an internal cylindrical portion (13) and a coating (14), the coating (14) being provided molten on the internal cylindrical portion (13) and being made of softer material than the material that forms the internal cylindrical portion (13), easy to engrave and with high resistance against abrasion.
Abstract:
Convertible embossing device comprising a structure (1) with two fixed sides (10) and two mobile sides (11) with respective external faces (EF, EM) and internal faces (IF, IM) and provided with, in correspondence of the respective internal faces (IF, IM), two upper recesses (12, 13) and two lower recesses (12′, 13′) with a circle-arc profile intended to support the end flanges (20, 30) of the two embossing rolls (2, 3) orthogonal to the sides (10, 11) of the same structure (1), wherein the mobile sides (11) are joined to the fixed sides (10) and the respective upper and lower recesses (12, 13, 12′, 13′) define, by cooperating with one another, two pairs of circular seats for the flanges (20, 30) of the rolls (2, 3), and in that, in a second operating position, the mobile sides (11) are distanced from the fixed sides (10) and the upper recesses (12, 13) of the sides (10) and (11) define, each one by cooperating with corresponding semi-circular closure flanges (15, 16), two pairs of circular seats for the flanges (20, 30) of the rolls (2, 3).
Abstract:
Support apparatus for embossing rolls comprising a fixed structure (1) with two sides (10), which provide multiple supports for one or more embossing rolls (2) having the respective horizontal axes between said sides (10) and being connected with corresponding motors (45) which make the rolls rotate around the respective axes at a preset angular velocity, characterized in that each of said supports is of the collar type (3) coaxial with and external to the axis of the respective embossing roll (2) and made by two elements (30, 31), one (30) being fixed and the other one (31) mobile, the mobile element (31) realizing the closing and, respectively, the opening of the collar (3) around the axis of the embossing roll (2) by means of an actuator (4; 62) controlled by a corresponding control device.
Abstract:
A graphic arts die and support plate assembly is provided that is adapted to be mounted as a unit on the chase of a flat bed or rotary graphic arts press. The assembly includes a plurality of spaced individual dies fixedly mounted in predetermined relative relationship on a support plate member of the unit. Alignment holes in each die that register with orifices in the support plate member are adapted to receive temporary alignment pins thereby assuring correct positioning of the dies with respect to one another on the support plate member until the dies are affixed to the support plate member. Makeready and die lock-up time of the press is significantly decreased because all dies of the assembly may be preregistered with a design artwork before mounting of the die and support assembly on the press. A series of graphic arts die units are also provided that are adapted to be mounted as an assembly encompassing more than 180° of the circumference of a rotary press chase. The graphic arts die units have die support plate members that may be aligned with indicia on the press chase, and that have notch structure receiving a tool for facilitating alignment and spacing between adjacent die support plate members. Cutouts in the die support plate members permit manual selective shifting of a die relative to the die support plate member therefor using a tool received in a cutout and engageable with the die.
Abstract:
An embossing assembly for sheet material includes at least two embossing rollers, the ends of which are rotatably mounted in the side panels of an embossing machine. Each of the side panels is divided into a fixed portion and at least one movable portion. The ends of the embossing rollers are mounted in supports which are removably fixed in seats formed in the fixed portions of the side panels or in the movable portions of the side panels of the machine. In this manner, when the movable portions of side panels are moved with respect to the fixed portions of side panels, a space is cleared for removal of at least a portion of the embossing roller supports.
Abstract:
An apparatus and process (20) for forming an embossed web or other article can include moving a target, composite web (26) along an appointed machine-direction (22) at a selected web speed, and operatively contacting the target web (26) with a rotary embossing device (38) to thereby form a non-linear embossment region (82) in at least a selected embossment portion of the target web (26). For example, the web speed can be at least a minimum of about 1.9 m/sec. In a particular aspect, the embossing device (38) can include an outer peripheral surface (42) having a lateral cross-direction (24) and a circumferential-direction (40), and can include a non-linear embossing member (44) located on the outer surface (42). In another aspect, the embossing member (44) can be configured to include a selected traversing occurrence along the circumferential-direction (40) of the embossing device (38). In a further aspect, the embossing member (44) can be configured to include a selected lateral traversing distance (50).