Apparatus for conditioning pressure molded plastic articles
OwnerEmery I. Valyiinventor
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Abstract
The present invention discloses an apparatus including a pressure molding machine for delivering plastic articles, a finishing machine for performing a finishing operation upon said articles, a conditioning section operative to adjust the temperature of said articles between the pressure molding machine and finishing machine, a first transporter adapted to remove the articles from the pressure molding machine and a second transporter adapted to transport the articles from the first transporter to the conditioning section.
Claims32
Apparatus for conditioning pressure molded plastic articles preparatory to a finishing operation, which comprises:
- means for delivering a number of pressure molded plastic articles;
- a finishing machine for performing a finishing operation upon said articles downstream of the delivery means;
- a conditioning section having means to adjust the temperature of said articles between said delivery means and said finishing machine comprising independently operable means for serially cooling said articles and temperature control means to impose thereon the axial temperature distribution required to perform said finishing operation, said conditioning section comprising;
- at least one conditioning station within said conditioning section including means to cool said articles according to a predetermined pattern;
- at least one conditioning station within said conditioning section including means to heat said articles according to a predetermined pattern;
- wherein said conditioning station including means to cool is separate from and spaced from said conditioning station including means to heat;
- first transport means positioned to remove said articles from said delivery menas;
- second transport means positioned to transfer said articles form said first transport means to said conditioning section;
- and
- wherein each of said conditioning station processes the complete number of pressure molded articles delivered by the means for delivering.
Apparatus for preparing hollow plastic articles which comprises:
- a pressure molding machine for forming a plurality of plastic parisons having axially variable wall thickness in a mold wherein said plurality of parisons have a first center spacing in said mold;
- a blow molding machine for forming hollow plastic articles form said parisons downstream of the pressure molding machine in a blow mold in which said parisons and hollow articles formed therefrom have a second center spacing larger than said first center spacing;
- a conditioning section having means to condition said parisons between said pressure molding machine and blow molding machine comprising independently operable means for serially cooling said parisons and temperature control means to impose thereon the axial temperature distribution to perform said blow molding operation, said conditioning section including;
- delivery means for delivering a number of parisons from the pressure molding machine to the conditioning section;
- at least one conditioning station within said conditioning section including means to alternately cool and heat said parisons according to a predetermined axial pattern so as to induce a corresponding pattern of deformation of said parisons while being processed in said blow molding machine;
- first transport means positioned to remove said parisons from said pressure molding machine and to cool said parison;
- second transport means positioned to transfer said parisons from said first transport means to said conditioning section and having means to change the center spacing of said parisons from said first center spacing to said second spacing;
- and
- wherein said conditioning section processes the complete number of parisons delivered by the delivery means.
Apparatus according to claim 30 wherein said third transport means transfers the blown product to the removal station.
Dependencies are inferred from the claim text.