A printing unit includes a support frame that is supported to face a transfer passage for a sheet; an inkjet head that is fixed to the support frame and performs printing on a printing surface of the sheet; drive bodies that are rotatably supported on the support frame on both sides of the inkjet head in a width direction of the sheet and come into contact with the printing surface of the sheet; and a drive device that drives and rotates the drive bodies.

A line and method for the production of covered cardboard boxes are disclosed. The line includes a conveyor unit including a belt and a conveyor actuator that drives the belt intermittently in an alternating sequence of movements and stops. A feed unit individually feeds covering blanks from a reservoir to the conveyor unit in a sequence of feed instants. An erecting machine folds box blanks into corresponding boxes. A positioner individually positions the boxes from the erecting machine, in alignment on corresponding covering blanks disposed on the belt of the conveyor unit. A gluer spreads glue on one face of the covering blanks. A covering machine folds the covering blanks into contact with their respective boxes to cover the boxes. A control unit connected to the feed unit adjustably sets a phase displacement of the feed instants relative to the sequence of stops of the belt.

A line and method for the production of covered cardboard boxes are disclosed. The line includes a conveyor unit including a belt and a conveyor actuator that drives the belt intermittently in an alternating sequence of movements and stops. A feed unit individually feeds covering blanks from a reservoir to the conveyor unit in a sequence of feed instants. An erecting machine folds box blanks into corresponding boxes. A positioner individually positions the boxes from the erecting machine, in alignment on corresponding covering blanks disposed on the belt of the conveyor unit. A gluer spreads glue on one face of the covering blanks. A covering machine folds the covering blanks into contact with their respective boxes to cover the boxes. A control unit connected to the feed unit adjustably sets a phase displacement of the feed instants relative to the sequence of stops of the belt.

A carton forming machine includes a carton blank push up device that receives a substantially horizontal folded carton blank and reorients the folded carton blank from the substantially horizontal orientation to an upright orientation below and in a first direction alignment with a carton opening mechanism. A carton blank positioning apparatus shifts the upright folded carton blank in a second direction, transverse to the first direction, below the carton opening mechanism to define a second direction position of the upright carton blank below the carton opening mechanism before the carton opening mechanism engages the upright carton blank for opening of the upright carton blank.

A carton forming machine includes a carton blank push up device that receives a substantially horizontal folded carton blank and reorients the folded carton blank from the substantially horizontal orientation to an upright orientation below and in a first direction alignment with a carton opening mechanism. A carton blank positioning apparatus shifts the upright folded carton blank in a second direction, transverse to the first direction, below the carton opening mechanism to define a second direction position of the upright carton blank below the carton opening mechanism before the carton opening mechanism engages the upright carton blank for opening of the upright carton blank.

The apparatus (100) for realising a cardboard strip for packaging comprises: a store (M), for a stack (P) of cardboard sheets (C); gripping means (4), for picking up a cardboard sheet (F1) from the stack (P) and for positioning the second cardboard sheet (F1) on the first support (1) for the application of adhesive material; transfer means (6), for transferring the first cardboard sheet (F1) towards the second support (2), so that the first cardboard sheet (F1) is rested on the second support (2) with an end portion (E) thereof with the adhesive material projecting towards the store (M) and towards a third support (3).

The third support (3) is activatable into a raised configuration (S), to raise an end portion of a second cardboard sheet coming from the store and into a lowered configuration (A) so as to lower the end portion (E2) of the second sheet (F2) and position it at the end portion of the first sheet (F1). Pressor means (7) are activated transversally to the two sheets (F1, F2) so as to press the two superposed end portions (E, E2) of the two sheets (F1, F2) in order to fix the end portions (E, E2) to one another to form a cardboard strip (NC).

The apparatus (100) for realising a cardboard strip for packaging comprises: a store (M), for a stack (P) of cardboard sheets (C); gripping means (4), for picking up a cardboard sheet (F1) from the stack (P) and for positioning the second cardboard sheet (F1) on the first support (1) for the application of adhesive material; transfer means (6), for transferring the first cardboard sheet (F1) towards the second support (2), so that the first cardboard sheet (F1) is rested on the second support (2) with an end portion (E) thereof with the adhesive material projecting towards the store (M) and towards a third support (3).

The third support (3) is activatable into a raised configuration (S), to raise an end portion of a second cardboard sheet coming from the store and into a lowered configuration (A) so as to lower the end portion (E2) of the second sheet (F2) and position it at the end portion of the first sheet (F1). Pressor means (7) are activated transversally to the two sheets (F1, F2) so as to press the two superposed end portions (E, E2) of the two sheets (F1, F2) in order to fix the end portions (E, E2) to one another to form a cardboard strip (NC).

A printing unit includes a support frame that is supported to face a transfer passage for a sheet; an inkjet head that is fixed to the support frame and performs printing on a printing surface of the sheet; drive bodies that are rotatably supported on the support frame on both sides of the inkjet head in a width direction of the sheet and come into contact with the printing surface of the sheet; and a drive device that drives and rotates the drive bodies.

The present invention provides a method to form cardboard boxes (B) by gluing into a box-forming machine (100) from sheets (S), said machine (100), a computer program with instructions for said machine (100) to execute said method, and a computer-readable device that has stored said computer program. In this method, a stage (f) of the movement of inserting a pintle (20) into a mold (30) starts with a controlling element (70) when the position (P) of a drag element (11) of sheet (S) to a delivery position, where you place a sheet (S) aligned between said pintle (20) and mold (30), it corresponds to a second intermediate position (P2) between a source position and said delivery position; and a stage (b) of activation of a supplying actuator (61) starts with a controlling element (70) to supply a sheet (S) subsequent to the source position, when the position (P) of said drag element (11) corresponds to a third intermediate position (P3) between said source position and said second position (P2).

A line and method for the production of covered cardboard boxes are disclosed. The line includes a conveyor unit including a belt and a conveyor actuator that drives the belt intermittently in an alternating sequence of movements and stops. A feed unit individually feeds covering blanks from a reservoir to the conveyor unit in a sequence of feed instants. An erecting machine folds box blanks into corresponding boxes. A positioner individually positions the boxes from the erecting machine, in alignment on corresponding covering blanks disposed on the belt of the conveyor unit. A gluer spreads glue on one face of the covering blanks. A covering machine folds the covering blanks into contact with their respective boxes to cover the boxes. A control unit connected to the feed unit adjustably sets a phase displacement of the feed instants relative to the sequence of stops of the belt.