| 摘要 |
An extrusion die having a first die element and a second die element, each of which has a die lip, between which an extrusion gap with a slot-shaped outlet opening extends over a width of the extrusion die. At least one die element has an adjusting device by which the die lip can be adjusted in relation to the die lip of the other die element while changing the width of the outlet opening. The adjusting device has an adjusting bar arranged in a receiving groove of the die element and displaceable in the width extension thereof in a displacement device. The adjusting bar has at least one sliding cam laterally projecting past the adjusting bar, and each sliding cam is guided in a control groove of the die element, wherein the control groove is arranged to run obliquely with respect to the displacement direction of the adjusting bar, so that when the adjusting bar is displaced in the displacement direction, by the engagement of the at least one sliding cam in the control groove, it is possible to achieve a displacement of the die lip extending transversely. The adjusting bar and/or the at least one sliding cam of the adjustment bar are arranged, respectively with the interposition of a roller chain, in the receiving groove or control groove of the die element.
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