摘要:
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.
摘要:
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.
摘要:
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. The second, pickup conveyor comprises for each work station two cranks having projecting pins selectively engageable with a corresponding groove in each work holder support for selectively coupling it for displacement.
摘要:
A distributor device delivers vertically disposed objects one by one to a conveyor. It comprises a hopper receiving the objects in bulk and having an inclined axis. The bottom of the hopper is an inclined disk rotating about the inclined axis. Openings around the edge of the disk each receive objects one by one. Below and parallel to the disk is a plate in the upper part of which is a release opening aligned with the path of the openings of the disk. Chute members on an endless loop intermediate conveyor link the hopper to the conveyor. They move under the release opening and receive the objects one by one. The intermediate conveyor is driven in synchronism with the disk. One section of the intermediate conveyor is under the upper part of the plate and another section is over the conveyor.
摘要:
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.
摘要:
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.