| 摘要 |
A method of cutting off the flow of material being extruded from a dispensing head is disclosed. The method involves interrupting the flow of material by shearing the material in a direction transverse to its direction of flow at the end of a dispensing cycle. In addition, the method involves tightly closing the extrusion openings of dispensing apparatus. Apparatus embodying the invention readily utilized with a variety of different types of equipment and in conjunction with end frames of differing sizes and configurations. The apparatus may be constructed such that auxiliary power means are not required in order to perform the flow control function.
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