Tecnau S.r.l.

Technu S.r.l.

Francesco Terrusi

Armando Aprato

Giuliano De Marco

Francesco Modica

Alberto Massucco

Gianrico Scarton

Giuliano DeMarco

De Marco

An equipment of accumulation of sheets forms a stack of sheets on an accumulation plane by means of driving belts and diverters arranged along the path of the sheets and jump on the accumulation plane. The height of the jump is modified by shifting vertically the accumulation plane with respect to the diverters according to number and/or thickness of the sheets. The diverters can be shifted according to the length of the sheets to be accumulated, while a series of arrest lugs delimits at the rear the area of collection of the sheets and a forwarding mechanism with a pair of output rollers forwards the stack of accumulated sheets when the lugs are released.

Sheet accumulation equipment

A cutting equipment for continuous paper strips having images arranged in sequence along multiple rows comprising a longitudinal cutting mechanism for separating the rows from the strips and a transversal cutting mechanism for separating image sheets from the rows and in which the image sheets have different longitudinal dimensions and possibility of random variations between row and row, The equipment further comprises individual feeding mechanisms for feeding, in an independent way, the rows with respect to the transversal cutting mechanism; a buffer device, of compensation for the different feeds of the rows, and an electronic control unit for actuating the feeding mechanisms and the transversal cutting mechanism so as to present the trailing edges of said image sheets in alignment for a simultaneous cutting by the transversal cutting mechanism and extracting one or more images from the cutting mechanism, after its actuation, as preparation of collecting.

Cutting equipment and method for continuous paper strips with images arranged along multiple rows

Cutting equipment () which processes overlapped continuous forms (H,L) is disclosed. The cutting is carried out by means of a cutting device (), which separates the sheets from the forms, introduction devices (H andL), which enter the continuous forms (H,L) into the cutting device and a singularizing device () for overlapped sheets, which includes two transport paths (and), the one above the other, with differentiable transfer times; the singularizing device comprises a diverter () upstream of the transport paths (and); the introduction devices (H andL) are actuatable for temporarily projecting a leading edge of one of the overlapped forms (H,L) with respect to the other form up to a switching zone of the diverter (), or for advancing together the overlapped forms (H,L); the diverter () is configurable for addressing a continuous form or both forms (H,L) to one or to both transport paths (and); and the introduction devices (H andL) are also actuatable, in the case of projecting of one of the continuous forms, for lining up trailing edges of the sheets of the one and the other form for a joint cutting of the overlapped forms (H,L) by means of the cutting device ().

Transversal cutting equipment for sheets separable from overlapped continuous forms

Perforating equipment () for high speed transversal perforations of variable lengths on a continuous form () in movement is disclosed. The perforations are carried out by means of a perforating blade () against a projecting profile () of a blade contrast () and blade and contrast servomechanisms () for rotating a support for the blade and the blade contrast. The projecting profile () has sectors with axial extensions different in dependence on their angular positions. The contrast servomechanism () is settable for selecting an angular phase of the blade contrast (), such to positioning, for the contrast with the blade, a sector of the projecting profile () having axial extension equal to the requested length of the perforation (P). The blade contrast can be constituted by a hollow cylinder () rotatable around a support shaft () as a radial air bearing of pneumostatic type.

Equipment for high speed transversal perforations of variable lengths on continuous forms in movement

Binding equipment and false cover forming equipment for hardcover books are disclosed. The false cover forming equipment carries out false covers, by positioning a pair of endpapers in correspondence of lateral binding flaps of a respective backstrip, arranging folds of the endpapers at a pre-assembling distance associated with the thickness of the text block and gluing margins of past-down sheets of the endpapers with binding edges of the backstrip. The binding equipment is feedable, at a cover input 'IC', with the false covers for carrying out book blocks by gluing the backstrips of the false covers with the binding edges of corresponding text blocks and refolding the pairs of endpapers on the respective text blocks. An electronic processing unit is settable for the control of the false cover forming equipment and the binding equipment as a function of the dimensions of the hardcover book to be bound.

Binding plant for hardcover books and a method of binding for these books

A perforating equipment () for continuous forms in movement comprises tree transversal perforating device () for executing transversal perforations on continuous forms () to be divided in three longitudinal sections and continuous forms to be divided in two longitudinal sections. Each perforating device includes a contrast member (), a blade support mounting a blade () for the three section form and a blade () for the two section form, a blade servomechanism () and an activation group (). The blade servomechanism rotates the blade support for a condition of interference of a blade in the position of perforation; and the activation group causes the contrast member to contrast a corresponding blade for the perforations of the forms to be divided into three sections, or the forms to be divided into two longitudinal sections.

Perforating equipment for continuous forms in movement

A transversal cutting equipment for sheets separable from overlapped continuous forms, wherein the forms are longitudinally divided from a basic continuous form for producing documents with a single sheet or more sheets, and wherein the documents and the respective sheets are printed according to a predetermined order. The equipment comprises a cutting device for joined separation of the sheets; an accumulating and forwarding device; transport paths; and differentiating means for modifying the transport times of the sheets along one or more transport paths. The cutting device operates in a continuous way, while the accumulating and forwarding device collects the sheet or sheets of a partially formed document and sends the sheet or sheets upon the completion of the document. The differentiating means modifies the transport times without interrupting the cutting device so that a cut sheet of a following document, is transferred to the accumulating and forwarding device for the formation of the following document, substantially after the forwarding of the preceding document.

An equipment for transferring sheets with change of direction for sheets entering along a first direction comprises output rollers to move the sheets along a second direction, right-angled with respect to the first direction, and members of engagement and movement, actuatable for engaging and moving the sheets entering along the first direction along the second direction up to the engagement with the output rollers. The members of engagement and movement provide a condition of reception in which define a space of reception for the entering sheets and a condition of engagement and movement in which engage the entered sheets and move the sheets for the engagement with the output rollers. The members of engagement and movement return to the condition of reception upon the engagement of the entered sheet with the output rollers for enabling a following sheet&#x2014;to enter and to be moved along the first direction jointly with the movement of the previous entered sheet along the second direction.

Equipment for transferring sheets with change of direction

A punching and/or perforation equipment () for continuous paper forms () comprising punching and/or perforation member () and contrast elements () substantially tangent to the movement surface () of the forms and a punching and/or perforation mechanism () for driving the punching and/or perforation members. A detecting device () detects at least one reference position the forms associated with the punching and/or perforation positions and a servomechanism () actuates the punching and/or perforation mechanism on the basis of the reference position or positions between a state of rest and a state of punching and/or perforation and in which the reference position or positions are associated with information of a position encoder (). The punching and/or the perforation members cooperate with the form with a peripheral velocity, at the moment of the punching and/or perforation, substantially equal to the velocity of the moving form ().

Punching and/or perforating equipment for continuous forms

A cutting equipment () for continuous forms () comprising an input moving device () for a continuous form, a loop forming device (), a cutting feeding device () and a transversal cutting mechanism () for the form. The form () has side sprocket holes () and the cutting feeding device () includes intermediate pin feed tractors () interposed between the loop forming device () and the transversal cutting mechanism () and provided for cooperating with the sprocket holes of the section of form () to be cut. The loop forming device includes a loop sensor () and the input moving device () causes the form to be entered at a mean velocity depending on the velocity of the intermediate pin feed tractors () and on the state of the loop sensor.

Growing community of inventors

Ivrea, Italy

Francesco Terrusi