Forming equipment comprising carriages carrying lower molds

Details Forming equipment comprising carriages carrying lower molds Forming equipment comprising carriages carrying lower molds

2011-08-23

2011-08-23

Crispino, Richard (Department: 1747)

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

And means to form or reshape preform

C425S150000, C425S186000, C425S193000, C425S359000, C425S411000

Reexamination Certificate

active

08002531

ABSTRACT:
Forming equipment having carriages carrying lower molds that can improve the quality of a molded product by fixing a carriage carrying the lower mold at the forming station when forming is carried out. The equipment includes a forming press that molds thermoplastic sheet material H with a upper mold MU and lower molds MR, ML, wherein the equipment has two carriages TR, TL, each carrying a lower mold, which carriages can move to and from a position opposite to the upper mold at a forming station S, a carriage transport mechanism A that transports the two carriages independently by driving motors attached to each carriage, a carriage guide mechanism B having a pair of rails extending perpendicular to a pressing direction of the forming press, and a positioning device C to determine the position of a carriage at the forming station that engages with the carriages.

REFERENCES:
patent: 3731514 (1973-05-01), Deibele, Jr.
patent: 5176923 (1993-01-01), Ito
patent: 6294114 (2001-09-01), Muirhead
patent: 6749418 (2004-06-01), Muirhead
patent: 2001-191316 (2001-07-01), None
patent: 2004 345328 (2004-12-01), None
patent: 2005-125376 (2005-05-01), None

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