Method for unpacking a workpiece, unpacking apparatus and a processing apparatus having an unpacking apparatus of this kind

Optical lens or optical lens blank processing apparatus having an unpacking apparatus (30) for unpacking an optical lens or an optical lens blank (2) as a workpiece (1), from a package (10),

• and a lens processing machine (101),
• the unpacking apparatus having:
• a feed station (40) for receiving a package (10) in which a workpiece (1) is arranged,
• a cutting-open station (60) having a first cutting or sawing tool (61) for the automated cutting open of a first package side (11) of the package (10) downstream of the feed station (40), and
• a slide-out station (70) downstream of the cutting-open station (60), by means of which a relative movement can be produced between the package (10) and the workpiece (1) in an automated manner, by virtue of which the workpiece (1) slides out of the package (10) on the first package side (11),
• wherein the first cutting or sawing tool (61) is arranged in a fixed location and the cutting-open station is configured so that the package (10) is guided past the first cutting or sawing tool (61) in the fixed location in an automated manner as the first package side (11) is cut open,
• wherein the unpacking apparatus (30) is arranged upstream of the lens processing machine (101) along an automated conveying line (90), and unpacked workpieces (1) are transferred from the unpacking apparatus (30) to the lens processing machine (101) by means of the conveying line (90), wherein the lens processing machine (101) is from the following group:
• milling machines;
• lathes;
• grinding machines;
• polishing machines;
• coating machines;
• cleaning machines;
• film wrapping machines;
• and
• block-mounting machines.

Unpacking apparatus (30) for unpacking an optical lens or optical lens blank as a workpiece (1), from a package (10), having:

• a feed station (40) for receiving a package (10) in which a workpiece (1) is arranged,
• a cutting-open station (60) having a first cutting or sawing tool (61) for the automated cutting open of a first package side (11) of the package (10) downstream of the feed station (40), and
• a slide-out station (70) downstream of the cutting-open station (60), by means of which a relative movement can be produced between the package (10) and the workpiece (1) in an automated manner, by virtue of which the workpiece (1) slides out of the package (10) on the first package side (11),
• wherein the first cutting or sawing tool (61) is arranged in a fixed location and the cutting-open station is configured so that the package (10) is guided past the first cutting or sawing tool (61) in the fixed location in an automated manner as the first package side (11) is cut open,
• characterized in that the unpacking apparatus (30) has a distance detection device upstream of the cutting-open station (60), by means of which the distance between the first and a second package side (11, 12) is detected, wherein the position of the first and/or the second cutting or sawing tool (61, 62) correlates mechanically or in an automated way with the detected distance.