JPH0541428B

• Main Authors: SHIBATA EIJI, TAMURA TADAHIKO, KINUHATA HIROSHI, TAKAMI MASAO
• Format: Patent
• Language: English
• Published: 23.06.1993
• Edition: 5
• Subjects: COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PURPOSE:To make the groove depth and groove width of a tire constant and to simplify the constitution of a program, by controlling a horizontal moving table and a lift table on the basis of reference moving quantity and allowing the correction moving quantity corresponding to the detection value of a detector to follow the reference moving quantity to correct the moving quantity of a cutter. CONSTITUTION:When a tire 3 is cut up to a predetermined depth (d) from a reference tread surface F according to a reference program, the reference quantity moving mechanism of a horizontal moving table driving apparatus 6 is driven according to the reference program and a horizontal moving table 5 is moved in a Y-axis direction to control the movement of a cutter 10 in a horizontal direction and grooving is performed. A correction program is stored in the memory of a correction operation part on the basis of the vertical vibration of the tire 3. Therefore, when there is vertical vibration E1 by the strain of the treated surface of the tire 3, vertical vibration is detected by a vertical vibration detector 14 and the moving quantity correction mechanism part of a lift table 7 is driven corresponding to the correction value from the correction program based on the detection value and the lift table 7 is raised in a Z-axis direction and the cutter 10 is raised to keep the depth (d) constant.