A hot stamping machine is provided, including a machine table, a processing platform, a hot stamping device and a license plate conveying device, wherein the hot stamping device includes an upper heating plate, a single-rod cylinder, a carbon ribbon and a carbon ribbon conveying mechanism; two groups of lifting mechanisms are used for driving lifting plates to move in the perpendicular direction, tops of two groups of grabbing devices are connected, and tin grabbing device moving mechanisms are used for driving the grabbing devices to move linearly between the two groups of lifting plates and the processing platform up and down and to the left and the right. Compared with an existing rolling hot stamping machine, the hot stamping machine does not require manual involvement in feeding and discharging, shortens the time for hot stamping one license plate by two-thirds, and has a high hot stamping efficiency.

A hot stamping machine is provided, including a machine table, a processing platform, a hot stamping device and a license plate conveying device, wherein the hot stamping device includes an upper heating plate, a single-rod cylinder, a carbon ribbon and a carbon ribbon conveying mechanism; two groups of lifting mechanisms are used for driving lifting plates to move in the perpendicular direction, tops of two groups of grabbing devices are connected, and tin grabbing device moving mechanisms are used for driving the grabbing devices to move linearly between the two groups of lifting plates and the processing platform up and down and to the left and the right. Compared with an existing rolling hot stamping machine, the hot stamping machine does not require manual involvement in feeding and discharging, shortens the time for hot stamping one license plate by two-thirds, and has a high hot stamping efficiency.

A precision positioning device of a unit-type die cutting & hot stamping machine includes a positioning element on an input end of a first imprinting element and a positioning element on an output end of each imprinting element. Two neighboring positioning elements accomplish the positioning between the two positioning elements together. Each positioning element is constituted by a positioning assembly installed symmetrically on each end of the imprinting element. The positioning assembly includes a positioning rod which can rotate against an installation shaft. Each positioning rod includes a positioning block which is provided with a reference surface. A rear side of the gripper is provided with a reference matching surface. By the positioning elements, the accuracy in the art of die cutting & hot stamping can be assured when the machine is performing a multiple-working-position procedure.

There is described a recto-verso printing press (100*) adapted to carry out simultaneous recto-verso printing of sheets, the printing press (100*) comprising a main printing group (5, 6, 15, 16, 25, 26) with first and second printing cylinders (5, 6) cooperating with one another to form a first printing nip between the first and second printing cylinders (5, 6) where first and second sides of sheets are simultaneously printed, the first printing cylinder (5) acting as a sheet conveying cylinder of the main printing group (5, 6, 15, 16, 25, 26). The printing press (100*) further comprises an additional printing group (7, 8, 17, 18, 27, 28) with third and fourth printing cylinders (7, 8) cooperating with one another to form a second printing nip between the third and fourth printing cylinders (7, 8) where the first and second sides of the sheets are simultaneously printed, the third printing cylinder (7) acting as a sheet conveying cylinder of the additional printing group (7, 8, 17, 18, 27, 28). The main printing group (5, 6, 15, 16, 25, 26) and the additional printing group (7, 8, 7, 18, 27, 28) are coupled to one another by means of an intermediate sheet conveying system comprising one or more sheet-transfer cylinders (10, 10′, 10″) interposed between the first and third printing cylinders (5, 7).

There is described a recto-verso printing press (100*) adapted to carry out simultaneous recto-verso printing of sheets, the printing press (100*) comprising a main printing group (5, 6, 15, 16, 25, 26) with first and second printing cylinders (5, 6) cooperating with one another to form a first printing nip between the first and second printing cylinders (5, 6) where first and second sides of sheets are simultaneously printed, the first printing cylinder (5) acting as a sheet conveying cylinder of the main printing group (5, 6, 15, 16, 25, 26). The printing press (100*) further comprises an additional printing group (7, 8, 17, 18, 27, 28) with third and fourth printing cylinders (7, 8) cooperating with one another to form a second printing nip between the third and fourth printing cylinders (7, 8) where the first and second sides of the sheets are simultaneously printed, the third printing cylinder (7) acting as a sheet conveying cylinder of the additional printing group (7, 8, 17, 18, 27, 28). The main printing group (5, 6, 15, 16, 25, 26) and the additional printing group (7, 8, 7, 18, 27, 28) are coupled to one another by means of an intermediate sheet conveying system comprising one or more sheet-transfer cylinders (10, 10′, 10″) interposed between the first and third printing cylinders (5, 7).

The invention discloses circulating feeding printer combining screen printing and digital ink jetting, comprising: a rack, the rack includes an upper rack layer and a lower rack layer, the two layers are respectively provided with a transmission platen capable of moving relative to the rack, each transmission platen is provided with a movable printing platen bearing a print medium capable of sliding relative to the transmission platen, a locking device locking the movable printing platen and the transmission platen is arranged between them, platen transfer devices capable of transferring the movable printing platen onto the transmission platen at the different layer are disposed on the rack, separately located at two sides of the transmission platens, the rack is further provided with a screen printer and an inkjet printer used for printing separately. The present invention prints high quality products, occupies small area, has high production efficiency and automation grade.

The invention discloses circulating feeding printer combining screen printing and digital ink jetting, comprising: a rack, the rack includes an upper rack layer and a lower rack layer, the two layers are respectively provided with a transmission platen capable of moving relative to the rack, each transmission platen is provided with a movable printing platen bearing a print medium capable of sliding relative to the transmission platen, a locking device locking the movable printing platen and the transmission platen is arranged between them, platen transfer devices capable of transferring the movable printing platen onto the transmission platen at the different layer are disposed on the rack, separately located at two sides of the transmission platens, the rack is further provided with a screen printer and an inkjet printer used for printing separately. The present invention prints high quality products, occupies small area, has high production efficiency and automation grade.

A sheet-fed printing machine comprises two sheet-fed printing units; of which a first is configured as a sheet-fed simultaneous printing unit and has two collector cylinders, which interact with one another and each have an axis of rotation. An axial plane contains the axes of rotation of the collector cylinders. A reference plane contains an axis of rotation of this type and has a horizontal surface normal. An intersection angle between the axial plane and the reference plane is, at a maximum, 45 degrees. A first one of the sheet-fed simultaneous printing units has exactly four plate cylinders, of which exactly two are arranged such that they directly interact with the first collector cylinder and has exactly two others which are arranged such that they directly interact with the second collector cylinder. A second sheet-fed printing unit has at least one impression cylinder and at least one plate cylinder, which is arranged such that it directly interacts with the impression cylinder and which is configured a screen printing plate cylinder, or as a flexo plate cylinder or as a numbering plate cylinder. The two collector cylinders of the first printing unit and the impression cylinder of the second printing unit have the same circumference.

A sheet processing machine has at least one shaping device and at least one sheet delivery unit, arranged downstream of the at least one shaping device along a transport path provided for a transport of sheets. The at least one shaping device has at least one shaping point which is formed by at least one forme cylinder, on one hand, and at least one impression cylinder, on the other hand. At least one separation device, for removing scrap pieces from sheets, is arranged downstream of the at least one shaping point along the transport path provided for the transport of sheets. The at least one separation device has at least one separation transport device. At least one transport device, configured as a selective transport device, is arranged following the at least one separation transport device along the transport path provided for the transport of sheets. The transport device is configured as at least one upper suction transport device for a hanging transport of sheets.

A sheet processing machine has at least one shaping device and at least one sheet delivery unit, arranged downstream of the at least one shaping device along a transport path provided for a transport of sheets. The at least one shaping device has at least one shaping point which is formed by at least one forme cylinder, on one hand, and at least one impression cylinder, on the other hand. At least one separation device, for removing scrap pieces from sheets, is arranged downstream of the at least one shaping point along the transport path provided for the transport of sheets. The at least one separation device has at least one separation transport device. At least one transport device, configured as a selective transport device, is arranged following the at least one separation transport device along the transport path provided for the transport of sheets. The transport device is configured as at least one upper suction transport device for a hanging transport of sheets.