摘要:
A printing machine includes at least one object support rotatably mounted on a conveyor which advances stepwise, at least one radiation type drying oven in vertical alignment with the path of movement of the object support and a drive system for driving a rotation cycle of the object support in line with the drying oven when the conveyor is stopped. The drive system modulates the rotation speed of the object support during the rotation cycle as a function of its angular orientation.
摘要:
The carriage of a printing machine, in particular a silkscreen printing machine, carrying the printing device is mobile on a guide carried by arms forming with uprights a set of deformable parallelograms. Lifting means include a cam whose edge cooperates with a cam follower roller carried by a longitudinal member controlling this set of deformable parallelograms. The longitudinal member is pivotally supported by two same level arms of the set of deformable parallelograms. It interacts with an angular orientation maintaining device which maintain the axis of the cam follower roller parallel to the axis of the cam.
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:
A stamping machine comprises at least one imprinting station of the gilding press type, wherein two shells mounted movably relative to one another are intended to mutually enclose at least the portion to be imprinted of the article to be imprinted, so as to apply to this latter a foil suitable for the impression desired. Both the shells are mounted movably relative to the machine frame in synchronism and opposed to one another, said shells being subject to the same control means which acts on one of them by way of transmission means suitable for reversal of movement. The machine is particularly applicable to the imprinting of articles with a neck, such as bottles.
摘要:
A printing machine is disclosed comprising a drum with a plurality of article holding mandrels. A feeding mechanism selectively feeds and positions article to be printed on the mandrels. An ejection mechanism automatically removes the printed articles from the mandrels. A drive effects stepwise annular displacement of the drum. A first actuating means effects reciprocating operation of the feeding mechanism and another actuating means effects reciprocating operation of the ejecting mechanism. Both the actuating mechanisms are controlled in synchronism with the drive and are independent and distinct from each other. The drive comprises a freewheel having an inner race fixed for rotation with the drum and a crank-connecting rod system attaching the outer race of the freewheel to a rotatably mounting driving shaft. Preferably the speed ratio of the actuating means of the feeding mechanism to that of the ejection mechanism is 2 to 1. The crank-connecting rod system comprises rods and cranks which are of adjustable length.
摘要:
Apparatus for ultraviolet drying and/or curing of freshly applied solvent-free ink on three-dimensional articles such as containers. Baskets for carrying the articles are swivelly mounted at spaced locations on an endless conveyor. The conveyor pathway has a bend or loop when viewed in elevation, the shape of which is determined by a drum or sprocket. A tubular ultraviolet lamp is arranged, preferably in the crook of the bend or loop, parallel to the axis of curvature of the bend or loop. The baskets are of perforate construction, preferably comprising wire strips in planes which intersect along lines parallel to their respective swivel axis. The lamp irradiates a predetermined sector of each passing article in the course of displacement over the bend or loop; shadows falling on the articles due to nonperforate portions of the baskets move continuously along the predetermined sector so that no spot on the predetermined sector is constantly obstructed from the ultraviolet radiation.
摘要:
An improved apparatus for automatically printing two faces of an object. The present invention is an attachment for use with a screen printing press of the type shown in U.S. Pat. No. 3,090,300, issued to Louis Gilbert Dubuit on May 21, 1963. The attachment permits the utilization of two separate sections of the same screen to print the face and reverse side of an object of revolution, such as a bottle, and particularly bottles of oval or irregular shape. The attachment consists of a main drive train which rotates the bottle at the same surface speed as the movement of the screen. Means are provided to flip or invert the bottle 180.degree. during the return stroke with a separate means provided to shift the screen relative to the drive, presenting a different section of the screen to the reverse side of the bottle for printing when the machine cycles through its normal print stroke. As is customary in printing irregular objects, the squeegee is held stationary and the screen and object move at the same speed beneath the squeegee to print the impression in the screen on the work.