| 摘要 |
A frame (10) is disclosed for stretching a printing screen (12) quickly and with uniform application of tension to the screen (12). The frame (10) includes a base portion (14) that defines a stretching plane in which the work piece is stretched. A swingable portion (30) of the frame (10) pivots relative to the base (14) and moves from a relaxed position in which the swingable portion (30) defines a plane that intersects the stretching plane, to a stretching position in which the swingable portion (30) is fixed in the stretching plate. A retainer (90) secures the edges of the screen (12) to the frame (10) such that the screen mesh is uniformly stretched as the swingable portion (30) is pushed into the stretching plane. A tension cable (140) extends through the frame (10) over a series of pulleys (142, 144, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166) spaced at several locations through each leg of the frame. Increased tension on the cables (140) pulls the swingable portion (30) of the frame (10) into the stretching plane.
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