Abstract: A printing machine comprises a print line along which at least one object support can move and a printhead overlying said print line at at least one printing station and twinned with another printhead disposed on standby away from said print line and with which it is interchangeable.

Abstract: A printing machine comprises a frame and a turntable adapted to rotate on the frame to move objects to be printed along a displacement circumference. At least one silkscreen type printing head is aligned with the turntable and includes a support beam and, carried by the support beam, a screen support adapted to receive a screen and a squeegee carriage adapted to move relative to the screen support. The support beam extends along a line which is secant to the displacement circumference and is coupled to the frame at at least two points thereon disposed on respective sides of the displacement circumference. The squeegee carriage moves parallel to the support beam.

Abstract: A printing machine suitable for printing objects with an oblong or a circular transverse cross-section includes a fixed printing shaft. An object to be printed is rotated about the printing shaft in contact with a flat printing plate or the like carried by a mobile assembly. The distance between the printing shaft and the printing plate or the like is corrected automatically. A drive shaft rotates the object to be printed through a transmission system which provides at least two transmission ratios.

Abstract: A machine for printing oval objects. The oval object has imparted to it a simple pivoting movement about an axis which is separate from the center of the radius of curvature of a section of the area of the object to be screenprinted upon. The printing screen which is attached to a printing or a screen support is moveable to correct simultaneously the distance between the screen and the rotation axis of the object. The printing machine is applicable to processes for decorating convex surfaces by screen printing, hot pressing, and dry offset printing.

Abstract: In this printing machine, which is of the type comprising a horizontal printing station and, in vertical alignment with the latter, an exchange station, there are two transfer arms which are disposed at 90.degree. relative to each other, one on each side of a rotation axis inclined at 45.degree. which is common to them, in a plane containing the latter, and which occupy alternately a vertical position at the exchange station and a horizontal position at the printing station, and the holding means equipping each of these transfer arms for grasping an object to be printed comprises at least one clamp the two branches of which are each provided at their free end with a jaw adapted to encircle at least partially, in conjunction with the jaw of the other one, an object of this kind.

Abstract: A transfer apparatus conveys work holder supports along a closed pathway, defined by a fixed guideway, passing by at least one work station. A first, drive conveyor which is preferably an endless conveyor and operates continuously transports the work holder supports along a first segment of the closed pathway and a second, pickup conveyor which in practice operates intermittently transports the work holder supports along a second segment passing by the work station or stations. The path of the first conveyor has a section which is detoured away from the work station or stations. The work holder supports are releasable engageable with the dogs on the first conveyor and projecting pins on cranks of the second conveyor for coupling and uncoupling the work holder supports upstream and downstream of the work station or stations.

Abstract: A `flat` silk-screen printing machine is disclosed wherein the table is reciprocably displaced along an inclined table support between a raised, advanced, printing position wherein the table is parallel to and immediately below a horizontal screen and a lowered, retracted, access position in which the table is inclined and extends forwardly of the inclined table support so that the greater part of the table protrudes outwardly of the machine, thereby providing enhanced access for positioning and removing the substrate to be printed. The table is pivotally mounted on the inclined table support and pivoted by a combination of a linkage and fluid cylinder and is attached to a belt running along the inclined table supported for translation up and down the same.

Abstract: A machine comprises, to feed a printing station, a conveyor comprising spaced supports each adapted to support an object to be printed and, at said printing station, a screen carried by a carriage, a squeegee carried by a carriage, and a block adapted, by bearing the object to be printed, to control its angular orientation around its axis, this block being keyed in rotation to a lever which, by virtue of engagement means adjustable in position lengthwise, meshes with a carriage mounted for movement in synchronism with the squeegee.

Abstract: A centrally mechanically controlled printing machine is disclosed comprising a conveyor equipped with spaced-apart article carriers for accommodating articles to be printed, a plurality of work stations comprising a singeing station, a prepositioning station, a printing station and a drying station disposed along the conveyor, each of the work stations being equipped with a mandrel transfer unit for selectively picking up an article from a said article carrier and dropping it off. A single cam controlling the operation of the mandrel transfer units of at least two of the work stations synchronously with the advance of the conveyor, a cam follower cooperable with the single cam, an arm fixed for rotation with a central control shaft common to the at least two work stations and carrying the cam follower, and an actuating lever for controlling each of the mandrel transfer units being fixed for rotation with the central control shaft.