Printing machine safety system

摘要

A screen printing safety system is provided. The system includes a screen printing machine, and a plurality of zones in the vicinity of the screen printing machine. Each of the zones includes at least one sensor for sensing encroachment past a predetermined point. The sensors are adapted to stop operation of the screen printing machine when encroachment is sensed in at least one of the plurality of zones.

主权项

1. A screen printing safety system having two areas of protection from encroachment comprising:
a screen printing machine having a loading area and a printing area, and a plurality of textile supporting pallets mounted for movement a first height above a supporting surface between the loading area where an operator can place textiles on or remove textiles from one of the plurality of textile supporting pallets, and the printing area having a plurality of print stations; a first entryway to the loading area from outside the loading area having a first vertical dimension from a floor to a top being sufficient to accommodate a human operator; a segmented barrier to the first entryway enclosing a first area of protection, the segmented barrier comprising:
a gate moveable from an open position to provide access to a first zone to a closed position to form a physical barrier to entry into the first zone, the gate adapted to stop operation of the machine upon movement of the gate; anda first light curtain sensor for detecting encroachment into a second zone, the first zone and the second zone being disposed in a common vertical plane spanning a portion of the first entryway, the first zone extending approximately to the first height and the second zone extending from a point upward therefrom to the top; a second entryway to the printing area; a second light curtain sensor surrounding the second entryway to define a second area of protection; and the first light curtain sensor and the second light curtain sensor being adapted to stop operation of the screen printing machine when encroachment is sensed.