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A method and apparatus for making cleaning pads from a tubular meshed network having inner and outer surfaces and a resilient filler by simultaneously turning said meshed network inside out and feeding said tubular meshed network and said filler into a hollow mandrel whereby said filler is enveloped

A method and apparatus for making cleaning pads from a tubular meshed network having inner and outer surfaces and a resilient filler by simultaneously turning said meshed network inside out and feeding said tubular meshed network and said filler into a hollow mandrel whereby said filler is enveloped by the reversed tubular meshed network.

대표청구항 ▼

A method of fabricating elongated, rod-like, non-metallic cleaning pad stock, convertible into a plurality of individual cleaning pads, from a tubular, meshed network and a resilient filler comprising the steps of: providing a tubular, meshed network having opened ends and of predetermined length, s

A method of fabricating elongated, rod-like, non-metallic cleaning pad stock, convertible into a plurality of individual cleaning pads, from a tubular, meshed network and a resilient filler comprising the steps of: providing a tubular, meshed network having opened ends and of predetermined length, said network having a preferred abrasive inside surface; providing a porous, spongy filler of a length substantially equivalent to said predetermined length, the cross-sectional geometry of the network being substantially equal to the cross-sectional geometry of the filler; stiffening said filler temporarily by supporting the filler on a rigid receptacle; providing a hollow mandrel having open ends, said ends defining an inlet end and a discharge end; drawing the main body of said network over the periphery of the hollow mandrel, outside out, whereby a relatively short portion of the network remains unsupported at the inlet end of said hollow mandrel; folding said unsupported short portion of said network transversely across said open inlet end of said hollow mandrel to close said end temporarily; clamping said filler to said receptacle to prevent relative motion between the filler and the receptacle; connecting the receptacle and said short portion of the network releasably; and feeding said network, said receptacle and said filler in unison into said hollow mandrel whereby the network, by virtue of the receptacle connection, is withdrawn automatically from the mandrel, inside surface out, and the filler and receptacle are enveloped or enclosed compactly within said inside out network throughout said predetermined length.