Method of determining molded part profile

Details Method of determining molded part profile Method of determining molded part profile

1975-08-13

1976-09-28

Ruehl, Charles A.

Measuring and testing

Miscellaneous

2351511, 264 401, B29F 106

Patent

active

039824403

ABSTRACT:
A method is provided for determining the profile of a molded part as a means of checking the quality of a given molded part and/or as a basis for effecting adjustments in the molding machine controls. In accord with the subject method a plurality of pressure sensings are taken simultaneously at different locations in the molding machine. These sensings are employed in accord with a known mathematical formula for establishing a profile of the part being molded wherefrom it is possible to determine the physical characteristics which the molded part will have. For purposes of establishing the profile of the part, the values of the pressure sensings in pounds per square inch are plotted against the distance from the gate at which the pressure is measured, the latter distance being indicated in suitable units of length. The method for determining the profile of a molded part is also operable for purposes of determining whether any material flow has occurred at a given location in the molding machine. The method of the present invention may be practiced either with molding machines which embody a single mold cavity or with those that embody multiple mold cavities.

REFERENCES:
patent: 3792134 (1974-02-01), Paulson
patent: 3840312 (1974-10-01), Paulson et al.
patent: 3860801 (1975-01-01), Hunkar
patent: 3893792 (1975-07-01), Laczko

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