Browse Prior Art Database

Compensating Slides

IP.com Disclosure Number: IPCOM000073466D
Original Publication Date: 1970-Dec-01
Included in the Prior Art Database: 2005-Feb-22
Document File: 2 page(s) / 77K

Publishing Venue

IBM

Related People

Delaney, AD: AUTHOR [+2]

Abstract

Flash free partial encapsulating of a part is accomplished by using compensating slides 10,12. These slides compensate for the variation in tolerance of any particular insert. An extrusion insert 14 is placed in the mold over locating pin 16. When the mold starts to close, wedge block 18 forces slide assembly (10,11, 12) forward. When block 12 comes in contact with insert 14, it stops. Slide section 10 continues to move forward to its home position while spring 11 compensates for any variation in tolerance and warpage of insert 14. When the mold is closed to its home position, the top half clamps block 12 in its molding position in order to resist any movement from the molding pressure.

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Compensating Slides

Flash free partial encapsulating of a part is accomplished by using compensating slides 10,12. These slides compensate for the variation in tolerance of any particular insert. An extrusion insert 14 is placed in the mold over locating pin 16. When the mold starts to close, wedge block 18 forces slide assembly (10,11, 12) forward. When block 12 comes in contact with insert 14, it stops. Slide section 10 continues to move forward to its home position while spring 11 compensates for any variation in tolerance and warpage of insert 14. When the mold is closed to its home position, the top half clamps block 12 in its molding position in order to resist any movement from the molding pressure.

The slide assemblies are made in separate sections along the length of the part to assist in compensating for distortion. This design eliminates the need of any secondary operation such as flash removal.

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