초록 ▼

An apparatus for producing small molded bodies with overhanging portions, e.g. for use as end stop members in slide fastener stringers, wherein a molding band is fed to a forming wheel to define individual molding cavities therewith, the cavities passing to a molding station at which a synthetic res

An apparatus for producing small molded bodies with overhanging portions, e.g. for use as end stop members in slide fastener stringers, wherein a molding band is fed to a forming wheel to define individual molding cavities therewith, the cavities passing to a molding station at which a synthetic resin material is injected into the cavities. According to the invention, the band consists of a plurality of band members which upon being fed to the wheel, form a core with undercut formations around which the synthetic resin material is molded and, following molding, the band portions are laterally or orthogonally offset to release the articles drawn by the band out of forming beds on the wheel.

대표청구항 ▼

An apparatus for producing a succession of small molded articles, especially end-stop members for slide fasteners, comprising: a form wheel provided with a multiplicity of forming beds distributed around the periphery of said wheel; a composite forming band having a plurality of endless band members

An apparatus for producing a succession of small molded articles, especially end-stop members for slide fasteners, comprising: a form wheel provided with a multiplicity of forming beds distributed around the periphery of said wheel; a composite forming band having a plurality of endless band members meeting along the periphery of said wheel and extending around a portion of said periphery before being deflected away from the periphery of said wheel said band members collectively defining at each of said beds along said portion of the periphery of said wheel a respective generally closed core surrounded by a respective individual mold cavity having the shape of the articles to be molded, at least two of said endless band members being formed with undercuts whereby said articles have overhangs enabling said articles to be withdrawn by said composite band from said beds as said members are drawn away from said wheel; means including an injection molding head juxtaposed with said portion of the periphery of said wheel for introducing synthetic resin into said cavities; and means for mutually offsetting said members passage therefrom away from said wheel and upon the withdrawal of said articles by the composite band from said bed to release said articles from said composite band.