摘要:
The foil embossing device comprises an embossing roller and two counter-rollers, one of the rollers being driven by a drive and the rollers having a configuration where the teeth, rings, or ridges project from the base cylinder, at least the embossing roller having teeth that project from the base cylinder and at least partly also serve for driving the counter-roller. To increase the uniformity of the embossing of the foil, the embossing roller has a diameter that is reduced by 0.02 to 0.20 mm over a certain length that is at least the same as the width of the foil. The length of the reduced diameter is preferably chosen so as to exceed the width of the foil being printed. Due to this depression, such a device allows a perfectly uniform embossing of foils of any kind independently of the design of the embossing rollers.
摘要:
Roller for treating a paper web, particularly apt to be used within an embossing or a calendering unit, comprising a central fixed shaft (10) linked to a fixed frame (11) on both its ends, on said shaft (10) more low-friction elements (12) being mounted, on the said low-friction elements a tubular skirt (2) being mounted coaxially with the shaft (10), the said skirt (2) being free to rotate about the longitudinal axis (x-x) of said shaft (10) and being subject to vibrations during said rotation. The roller comprises means for dampening said vibrations, said dampening means being provided and acting between the said skirt (2) and the said shaft (10).
摘要:
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.
摘要:
The embossing device comprises at least one embossing roller (3) and at least one counter-roller (5) cooperating with said embossing roller. The embossing roller comprises an interchangeable sleeve (19) which can be constrained to two heads (13, 15) which engage the sleeve at the ends thereof.
摘要:
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.
摘要:
The rotating cylinder for processing a web material comprises an essentially rigid cylindrical core (13), on which is fitted an interchangeable sleeve (45) of elastically expandable material whose rigidity is less than that of the material of the core; the sleeve is axially and angularly fixable to the core and is provided on its outer surface with a relief pattern. For each end of the 3 cylinder, there is provided at least one corresponding mechanical locking member which can be fixed to the corresponding end of the core of the cylinder and which interacts with the corresponding end of the interchangeable sleeve to lock the interchangeable sleeve angularly with respect to the core of the cylinder.
摘要:
A method of embossing an absorbent web with a machine direction undulatory structure is described. The web has a plurality of ridges extending in its machine direction occurring at a frequency, F, across the web and the method includes providing the web to an embossing station where the web is embossed between a first and second embossing roll, each of which rolls may be provided with a plurality of embossing elements configured to define a plurality of embossing nips. At least a portion of the embossing nips are substantially oriented in a cross-machine direction with respect to the web and have a cross direction length, L. The product F×L is from about 0.1 to about 5.
摘要:
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 said rolls (2, 3), and in that, in a second operating position, the mobiles sides (11) are distanced from the fixed sides (10) and the upper recesses (12, 13) of said 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 said rolls (2, 3).
摘要:
An embossing unit, wherein sheet material is fed between a first and a second embossing roller counter-rotating respectively about a first and a second axis of rotation defining a plane, one of the embossing rollers being subjected, in use, to a compression force towards the other embossing roller; and wherein at least one of the axes of rotation oscillates about a virtual hinge or instantaneous centre of rotation, which is movable, in the plane defined by the axes of rotation, in response to displacement, along a pitch line of tangency between the embossing rollers, of a point of application of a reaction force.
摘要:
The embossing and laminating device comprises: a supporting structure (3); a first embossing cylinder (9) provided with protuberances (9P); a first pressure roller (21) cooperating with said first embossing cylinder (3); a second embossing cylinder (11), provided with protuberances (11P); a second pressure roller (23) cooperating with said second embossing cylinder (11). The first and the second embossing cylinder (9, 11) are carried by an interchangeable assembly or sub-structure (7), which can be mounted on and removed from the fixed structure.