초록 ▼

A preparatory station for pre-forming bar assemblies intended for use in conjunction with multiple extrusion head for producing rubber profiles for tread strips of automobile tires includes a plurality of chambers receiving said bar assemblies from said extruder head and for accommodating replacemen

A preparatory station for pre-forming bar assemblies intended for use in conjunction with multiple extrusion head for producing rubber profiles for tread strips of automobile tires includes a plurality of chambers receiving said bar assemblies from said extruder head and for accommodating replacement assemblies, means being provided for heating the accommodation chambers, and further including arrangements for ejecting the pre-forming bar assemblies from the extrusion head and for removing the splicing or jointing bar assemblies and the profile bar assemblies from the pre-forming bar assemblies.

대표청구항 ▼

A preparatory station for pre-forming bar assemblies intended for use in conjunction with a multiple extrusion head, said pre-forming bar assemblies comprising pre-forming bar means, said bar means including a housing defining inlet means for each material extruded through said multiple extrusion he

A preparatory station for pre-forming bar assemblies intended for use in conjunction with a multiple extrusion head, said pre-forming bar assemblies comprising pre-forming bar means, said bar means including a housing defining inlet means for each material extruded through said multiple extrusion head, splicing or jointing bar means disposed within said housing and, together with said pre-forming bar means, defining flow channels for each mixture received through said inlets, and profile bar means receiving said mixtures from said flow channels and combining said mixtures to form a single profile, wherein said preparatory station comprises a plurality of accommodation chambers for receiving said pre-forming bar assemblies from said extrusion head and for accommodating replacement pre-forming bar assemblies, heating means for heating said accommodation chambers, means for transferring a used pre-forming bar assembly from said extrusion head into one of said accommodation chambers and for transferring a replacement pre-forming bar assembly from said accommodation chamber into said extrusion head, and ejection means separate from said transfer means and associated with at least one accommodation chamber for disassembling said pre-forming bar means, said profile bar means, and said splicing or jointing bar means.