Machining method of a last for making shoes and machining centre by numerical control to carry out this method
AssigneeCarpe Investigaciones Cientificas, S.L.U.
InventorAntoni Vidal Pons
Life of this patent
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Abstract
The method comprises the steps of positioning of the last (1) in first fastening means (11a, 11b) at the machining center (10), piercing and identification marking of it, positioning of the last (1) in second fastening means (19, 20) of the center, and removal of the surpluses (4, 5) of a process previous to the rough-hewn. The machining center by numerical control (10) comprises fastening means (11a, 11b, 19, 20) of the last (1), and a number of drills (15, 17).
Claims16
Machining method of a last (1) for the production of shoes, which comprises the rough-hewn, piercing, identification marking, and removal of the surpluses (4, 5) operations resultants of the rough-hewn operation, comprising the following steps:
- a) Manual positioning of the last (1) in a machining center by numerical control (10), fixing it by fitting the last in housings (2, 3) in the surpluses (4, 5) located in the heel-pad and in the toe of the last (1) and first movable fastening means (11a, 11b) in the machining center (10).
- b) Piercing and identification marking of the last (1) by a drill (15) of the machining center (10), the last (1) being held and positioned by said first movable fastening means (11a, 11b).
- c) Manual removal of the last (1) from the first movable fastening means (11a, 11b) and manual fastening of it to second movable fastening means (19, 20) in the machining center (10) that introduces inside holes (6a, 6b) made previously in the last (1) in the step of piercing and identification marking.
- d) Removal by automatic maching, by means of the drill (15), of the surpluses (4, 5) that have been left free.
Machining center by numerical control (10) for piercing, identification marking, and removal of the surpluses (4, 5) resultants of a previous rough-hewn process of a last (1) for the production of shoes, wherein it comprises a plurality of drills (15, 17), first movable fastening means (11a, 11b) for their fitting in housings (2, 3) in the surpluses (4, 5) located in the heel-pad and in the toe of the last (1), and second movable fastening means (19, 20) for their introduction inside holes (6a, 6b) made in the last (1) by a drill (15).
Dependencies are inferred from the claim text.