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1. US5777878 - Screen printing press having longitudinal, lateral and angular screen frame registration system and method

Office United States of America
Application Number 08658025
Application Date 04.06.1996
Publication Number 5777878
Publication Date 07.07.1998
Grant Number 5777878
Grant Date 07.07.1998
Publication Kind A
IPC
B41F 15/14
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
FPRINTING MACHINES OR PRESSES
15Screen printers
14Details
B41F 15/00
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
FPRINTING MACHINES OR PRESSES
15Screen printers
B41F 15/08
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
FPRINTING MACHINES OR PRESSES
15Screen printers
08Machines
B41F 15/24
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
FPRINTING MACHINES OR PRESSES
15Screen printers
14Details
16Printing tables
18Supports for workpieces
24for webs
B41F 15/34
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
FPRINTING MACHINES OR PRESSES
15Screen printers
14Details
34Screens; Frames; Holders therefor
B41F 15/10
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
FPRINTING MACHINES OR PRESSES
15Screen printers
08Machines
10for multicolour printing
CPC
B41F 15/10
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
FPRINTING MACHINES OR PRESSES
15Screen printers
08Machines
10for multicolour printing
B41F 15/085
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
FPRINTING MACHINES OR PRESSES
15Screen printers
08Machines
0831for printing webs
0845with flat screens
085with a stationary screen and a moving squeegee
Applicants Preco Industries, Inc.
Inventors Helmrich Ivan B.
Raney Charles C.
Agents Hovey, Williams, Timmons & Collins
Title
(EN) Screen printing press having longitudinal, lateral and angular screen frame registration system and method
Abstract
(EN)

A screen printing press is provided for printing on a web having defined, successive areas and indicia provided in predetermined positions relative to each of the defined areas. The press includes a base defining a work station, a screen supported on the base for movement between a printing position overlying the work station and an interrupted position, and a web handling assembly for advancing the web along a path of travel to successively feed the defined areas of the web toward the work station. A registration system successively positions the defined areas of the web in a desired predetermined relationship to the screen as successive defined areas are brought into a position to be printed. The registration system includes longitudinal, lateral and angular shifting mechanisms for adjusting the longitudinal, lateral and angular alignment between the screen and the web. Sensors are provided for sensing the correct positions and orientation of the indicia that are occupied when the defined areas of the web are in the predetermined relationship relative to the screen, and a controller is responsive to the sensors for controlling the longitudinal, lateral and angular shifting mechanisms to adjust the alignment between the screen and the web until the correct positions and orientation of the indicia are sensed.