B41F33/0081

SYSTEM AND CONTROL METHOD FOR EMBOSSED-IN-REGISTER OF SHEET
20220032607 · 2022-02-03 ·

A system and control method for embossed-in-register of a sheet is provided. The system comprises a printed film winding/releasing mechanism, a film laminating roller and a pattern roller spaced from the film laminating roller, wherein the printed film is provided with first identifiers at intervals, and the pattern roller is provided with second identifiers at intervals; the system further comprises: a color code sensing mechanism configured to detect the first identifiers, an encoder configured to detect a rotation position of the pattern roller, and a control system; the control system comprises a storage unit, a data acquisition unit and a control unit; wherein, the control unit is configured to calculate a deviation of a pattern position, corresponding to a current first identifier, of the printed film and a pattern position, corresponding to a current second identifier, of the pattern roller in a same pattern, and generating a control signal of the pattern roller based on the deviation. According to the present application, a high-precision adjustment signal of the pattern roller may be generated, an EIR effect is guaranteed, the outturn percentage is increased, and the production cost is reduced.

SYSTEM AND CONTROL METHOD FOR EMBOSSED-IN-REGISTER OF SHEET
20220032603 · 2022-02-03 ·

A system and control method for embossed-in-register of a sheet is provided. The system comprises a printed film winding/releasing mechanism, a film laminating roller and a pattern roller, wherein the printed film is provided with first identifiers at intervals; the system further comprises: a camera configured to acquire an image of the printed film, an encoder configured to detect a rotation position of the pattern roller, and a control system; the control system comprises a storage unit, a data acquisition unit and a control unit; wherein, the control unit is configured to identify a position of an identifier based on the image of the printed film, identify a rotation position of the pattern roller based on information fed back by the encoder and generate a rotation control signal of the pattern roller based on a difference of position information of the identifier and position information of the pattern roller so as to adjust a rotation speed of the pattern roller. By using the EIR solution provided by the present application, the printed film is not required to be widened, and an existing structure and effective area of the printed film are effectively used, so that the universality of the printed film is improved, the outturn percentage may be guaranteed, and the production cost cay be reduced.

SHEET PROCESSING MACHINE COMPRISING AT LEAST ONE SENSOR DEVICE, AND METHOD FOR CONTROLLING BY OPEN-LOOP CONTROL AND/OR CLOSED-LOOP CONTROL AT LEAST ONE COMPONENT OF A SHEET PROCESSING MACHINE
20220266589 · 2022-08-25 ·

In some examples, a sheet processing machine includes at least one sensor device that includes at least two sensors configured as a camera. The sheet processing machine further includes at least one infeed system. The at least one sensor device is configured to control, by open-loop control and/or closed-loop control, at least one servo drive of the infeed system as a function of at least one sheet of sheets being detected by the at least two sensors. The at least two sensors are configured to selectively detect at least one edge and/or printing mark of the sheets. Some examples likewise relate to a method for controlling, by open-loop control and/or closed-loop control, at least one component of a sheet processing machine.

Rotary screen transfer printing machine and control system

A rotary screen transfer printing machine and a control system thereof. The rotary screen transfer printing machine having a feeding unit, a printing unit, a drying unit, and a receiving unit; the printing unit has at least one rotary screen transfer printing assembly and a guide belt assembly; each rotary screen transfer printing assembly has a rotary screen plate roller and a transfer roller; the rotary screen plate roller is close to the transfer roller; the transfer roller is seamlessly coated with rubber or a resin having good affinity for a water-based ink. A control system includes: a motion controller; a conveying synchronization module, used for controlling the feeding unit, the printing unit, the drying unit, and the receiving unit to synchronize the conveying speeds of the four units; and a rotary screen transfer printing synchronization module.

Printing plate segment mounting system and method
11247452 · 2022-02-15 · ·

A method for mounting one or more printing plate segments on a carrier sheet. The method comprises importing a file into a computer associated with a mounting unit. For each printing plate segment, the file includes a printing plate segment identifier, information regarding alignment of registration marks relative to the carrier sheet; and image data corresponding to a characteristic pattern associated with each printing plate segment. A composite image depicting the image data corresponding to the characteristic patterns is then displayed on a display in the predetermined arrangement of one or more printing plate segment locations and orientations. A mounting unit and a printing system and computer readable media programmed with instructions for performing the method are also described.

Image registration for printing

A method for printing on an article can include positioning an article in a print bed of a printing device. The fiducial is disposed in the print bed. The method can also include generating an image of the article and the fiducial, locating the fiducial in the image, using the fiducial to establish a point of reference relative to a print location on the article, providing a raster or vector graphic file comprising a graphic, printing a representation of the graphic on the article at the print location, and removing the article from the print bed.

Mask printing machine
11396176 · 2022-07-26 · ·

In a mask printing machine, a target through hole, which is at least one of multiple through holes formed on the mask, is imaged by an imaging device when the board is below the mask and is at a separated position that is separated from the mask, and when the board is at a contact position in which an upper surface of the board contacts a lower surface of the mask, respectively. Based on a captured image, when the board is at the separated position, and a captured image when the board is at the contact position, it is possible to acquire the movement state of at least one target through hole when the board is lifted from the separated position to the contact position.

System for registering the printing units of a rotary printing machine with manually-adjustable print register
11345139 · 2022-05-31 · ·

The machine comprises: a plurality of printing units each of which has a printing cylinder movable so as to allow adjustment of the position of the image printed by that cylinder in two perpendicular adjustment directions relative to the web of printing material; first manually-operated adjustment means arranged to allow a user to adjust manually the position of each printing cylinder; image acquisition means arranged to acquire images of register marks printed by the printing units along one or both sides of the web of material; and display means arranged to show, on an enlarged scale, the images acquired by the image acquisition means, so as to allow the user to detect any misalignments between the register marks and to properly adjust the position of one or more printing cylinders to clear said misalignments. The image acquisition means comprise a plurality of cameras each of which is arranged to frame.

IMAGE REGISTRATION FOR PRINTING

A method for printing on an article can include positioning an article and a fiducial within a field of view of an image sensor. The method can also include generating an image of the article and the fiducial, using the fiducial to determine a print location on the article, and printing a graphic on the article at the print location. A method for printing on an article additionally or alternatively can include transforming a graphic using a shape model to produce a transformed graphic and printing the transformed graphic on the article. A method for printing on an article additionally or alternatively can include retrieving a shape model corresponding to a reference article, obtaining a configuration file corresponding to the article, transforming a graphic based on the shape model and the configuration file to produce a transformed graphic, and printing the transformed graphic on the article.

METHOD AND APPARATUS FOR ATTACHING A PRINTING PLATE TO A PRINTING CYLINDER
20220153013 · 2022-05-19 · ·

A method for attaching a printing plate (12), especially a flexographic printing plate, to a printing cylinder (14) is described. In a first step, the printing plate (12) is provided in a substantially flat condition. Thereafter, an outer circumference of the printing cylinder (14) is arranged adjacent to an edge of the printing plate (12). Subsequently, the printing cylinder (14) is translatorily moved over the printing plate (12) while rotating such that the printing plate (12) is rolled-up on the printing cylinder (14). Additionally, an apparatus (10) for attaching a printing plate (12) to a printing cylinder (14) is presented. The apparatus (10) comprises a printing plate support unit (16) having a substantially flat support surface (18) for supporting the printing plate (12) to be mounted on the printing cylinder (14), and a printing cylinder support unit (36) for supporting and moving the printing cylinder (14). The printing cylinder support unit (36) comprises a translatory drive means (42) for translatorily moving the printing cylinder (14) in a direction parallel to the support surface (18).