Locking apparatus for upper and lower molds of a press

Plastic article or earthenware shaping or treating: apparatus – Mold opening and closing means and segmented female mold – Varying pressure and/or speed closing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4254517, 4254519, 425590, 425595, B29C 4566

Patent

active

058797262

ABSTRACT:
A locking apparatus for an upper mold and a lower mold of a press apparatus includes a ball screw, a screw nut, a force producing spanner structure and at least one engagement structure. The screw nut is responsive to a first power source for driving the ball screw in an axial direction to perform a lower-pressure higher-speed stroke. The spanner is responsive to a second power source for producing a force in circumferential direction. The engagement structure is arranged around an external rim of the screw nut. Responsive to the force in the circumferential direction, the engagement structure closely engages with the external rim of the screw nut such that a corresponding friction force is applied to the screw nut. The screw nut, responsive to the friction force, drives the ball screw in the axial direction to perform a higher-pressure stroke to lock the upper mold and lower mold.

REFERENCES:
patent: 4797086 (1989-01-01), Adachi
patent: 4929165 (1990-05-01), Inaba et al.
patent: 4968239 (1990-11-01), Inaba et al.
patent: 5190714 (1993-03-01), Reinhart
patent: 5698240 (1997-12-01), Haguchi

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Locking apparatus for upper and lower molds of a press does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Locking apparatus for upper and lower molds of a press, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Locking apparatus for upper and lower molds of a press will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1318360

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.