Multicolor screen printing assembly
AssigneePrecision Screen Machines, Inc.
InventorSandor Szarka
Life of this patent
Estimating the term…
Abstract
A screen printing machine has a plurality of stationary printing head frames each with a bell crank linkage suspending a framed screen mounting assembly for parallel movement of the screen into and out of engagement with a pallet supported article to be printed. The head frames are integrated into the machine structural frame in both a rotatable pallet embodiment and a linear web embodiment. Separate actuators are carried by a carriage, the latter being moveable along the head frame from one end to the other, the actuators being arranged to lower and raise separate flood bars and squeegee blades, correlating the up-and-down movement of the flood bars and squeegee blades with the raising and lowering of the screens.
Claims8
A screen printing machine comprising in combination a central base structure supporting thereupon a rotatable column, a plurality of circumferentially spaced radial arms projecting from said column and supporting each a corresponding pallet at the same radial distance from said column and in a common plane for receiving a fabric article to be screen printed, a plurality of printing head frame assemblies disposed in another common plane parallel to and spaced from said pallet common plane, said printing head frame assemblies being located about a circle spaced from one another and positioned radially from said column so that, for each of a plurality of indexable locations of said rotatable column, each printing head frame assembly will be aligned in juxtaposition with a different pallet, and machine frame members interconnecting one end of each said printing head frame assembly with said rotatable column and connecting the opposite end of each said printing head frame assembly with said base structure whereby said printing head frame assemblies are integrated into a boxlike rigid skeletal machine frame, and means supported by each said printing head frame assembly for transferring a screen into a position proximate to a pallet-supporting article in a manner to permit screen printing onto said article, wherein each said printing head frame assembly and said means supported thereby comprise a single integrated unit located entirely on one side of said pallet common plane.
A screen printing machine comprising in combination a plurality of printing head frame assemblies disposed in a common plane, means for supporting and advancing in a second plane, spaced from and parallel to said common place, a quantity of fabric onto which printing is to be effected, means for advancing said fabric to sequentially locate a predetermined area of said fabric in registration with a different one of said printing head frame assemblies, and machine frame members interconnecting each end of said printing head frame assemblies with a machine base structure whereby said printing head frame assemblies are integrated into a rigid skeletal machine frame, and means supported by each said printing head frame assembly for screen printing upon said fabric when said predetermined area is in juxtaposition with the corresponding printing head frame assembly wherein said means supported by each said printing head frame assembly comprises a vertically selectably reciprocal screen frame mount in combination with a vertically translatable squeegee assembly for sequentially lowering a screen into contact with said fabric article and thereupon translating said squeegee to urge printing fluid through said screen, and wherein each said printing head frame assembly and said printing means supported thereby comprise a single integrated unit located entirely on one side of said second plane.
Dependencies are inferred from the claim text.