Mold with indicia forming changeable core

Details Mold with indicia forming changeable core Mold with indicia forming changeable core

1998-02-20

2000-11-21

Mackey, James P.

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For extrusion or injection type shaping means

249103, B29C 3300

Patent

active

061494208

ABSTRACT:
A core mold that has a mounting hole on its molding surface and a changeable indicia forming section that is used to form markings on an external surface of injection molded products. The indicia forming section is located on one end of a changeable indicia forming insert. The insert is detachably inserted into the mounting hole of the core mold. A step is also used to prevent the changeable indicia forming insert from moving relative to the core mold. The changeable indicia forming insert is detachably inserted to the core mold so that the indicia forming section is easily changeable by changing the insert. This avoids the delays caused by using core molds and inserts bearing indicia forming sections that are integrally formed from a unitary piece of material. Additionally, the information conveyed by the markings is greater than that possible using core molds with rotary cores. The mold of the present invention improves work efficiency during the manufacturing process by reducing the delay caused by changing indicia forming inserts. This leads to a corresponding reduction in production costs and allows products to be sold at more competitive prices. Furthermore, the markings formed by the present invention are all relevant to the product produced, as opposed to the marks created by rotary cores, thus eliminating potential consumer confusion. This invention is applicable to any molding processes, such as die-casting, plastic injection molding, and metallic injection molding.

REFERENCES:
patent: 1586352 (1926-05-01), Cochran
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patent: 3354509 (1967-11-01), Ammondson
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patent: 4384702 (1983-05-01), Boskovic
patent: 4708314 (1987-11-01), Kuhnling
patent: 4979720 (1990-12-01), Robinson
patent: 5038504 (1991-08-01), Modigh

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