Plastic article or earthenware shaping or treating: apparatus – Distinct means to feed – support or manipulate preform stock... – Female mold type means
Patent
1985-10-30
1987-06-09
Hoag, Willard E.
Plastic article or earthenware shaping or treating: apparatus
Distinct means to feed, support or manipulate preform stock...
Female mold type means
425126R, 425129S, 425183, 425185, 425186, 425190, 425308, A43D 6500, B29C 4506
Patent
active
046717552
ABSTRACT:
Apparatus for controlling shoe production. A rotatable table has locations including last holders for receiving and holding a plurality of lasts. Each last holder extends upwardly away from its location. An endless conveyor, situated near the table, includes conveyor plates having last holders on which lasts can be mounted and dismounted. The conveyor plates and the locations occupy substantially the same horizontal plane. A robot, including a transferring device between the table and the conveyor, transfers lasts between the conveyor at a first transfer station and the table at second transfer station and visa versa. A shoe last rotating device rotates the lasts 180.degree. to reorient each last from the position it occupies on the conveyor to the position it occupies on the last holder. A holding device causes each last holder to retain a last after the last is transferred to the table at the second transfer station and to release the last at the second transfer station after the table has revolved 360.degree.. Each last, as oriented on the conveyor, includes a top portion and a bottom portion. The top portion has a gripping plate member with guides to be gripped and retained by the robot during last transfer from the conveyor to the table. Each conveyor plate includes a retainer for retaining one of the lasts in one of the plates by engaging the gripping plate member and the guide.
REFERENCES:
patent: 3467985 (1969-09-01), Wessel
patent: 3496608 (1970-02-01), Eldred et al.
patent: 3555609 (1971-01-01), Chu et al.
patent: 3915608 (1975-10-01), Hujik
patent: 4123493 (1978-10-01), Schilke et al.
patent: 4286936 (1981-09-01), Hustedt
patent: 4302416 (1981-11-01), Rudolf et al.
patent: 4465448 (1984-08-01), Aldridge
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