Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Positioning of a mold part to form a cavity or controlling...
Patent
1982-04-27
1983-12-06
Pavelko, Thomas P.
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Positioning of a mold part to form a cavity or controlling...
2642972, 2643288, 425150, 425588, B29F 105
Patent
active
044193068
ABSTRACT:
A method of automatically controlling the length of a row of articles to be injection-molded on a multi-cavity mold having an elongate runner and a plurality of successive cavities spaced equidistantly along the runner, comprising the steps of: detecting an initial position of a control rod inserted in the runner; registering both the direction and the extent to which the control rod is to be moved for longitudinal adjustment with respect to the runner, depending on the initial position of the control rod and a preselected length of the article row to be molded; moving the control rod longitudinally of the runner in the registered direction; detecting the movement of the control rod to the registered extent; and in response to the last-named detecting, terminating the movement of the control rod. An apparatus for carrying out this method is also disclosed.
REFERENCES:
patent: 3270377 (1966-09-01), Parker
Pavelko Thomas P.
Yoshida Kogyo K. K.
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