Title:
GOB PRODUCTION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2015/147065
Kind Code:
A1
Abstract:
A gob production apparatus for producing a gob to be supplied to a mold for molding a glass product while adjusting the gob to a most suitable weight and a most suitable shape. The gob production apparatus is equipped with: one or two cameras (71, 72) for taking an image of a gob, which is produced by cutting a molten glass extruded through an circular orifice (11) in a gob feeder (1), on a drop passage for the gob; an image processing device (70) for performing an image processing for approximating the cross-sectional shape of the gob as observed in a direction orthogonal to the length direction into a circular or oval shape from a two-dimensional image of the gob which is obtained by the camera or cameras, thereby determining the weight and feature amount of the gob, wherein the feature amount is employed for specifying the shape of the gob; driving mechanisms (40, 50, 64 to 66) for separately driving multiple adjustment mechanisms that are controlled so as to adjust the gob to a desired weight and a desired shape; a storage device for storing a standard value for the weight of the gob and a most suitable value for the feature amount of the gob as reference date; and a control device (8) for driving the corresponding driving mechanisms (40, 50, 64 to 66) in such a manner that the difference between the weight of the gob which has been measured by the image processing device (70) and the corresponding reference datum which has been stored in the storage device and the difference between the feature amount of the gob which has been measured by the image processing device (70) and the corresponding reference datum which has been stored in the storage device become acceptable values.
Inventors:
TANAKA NAOHIRO (JP)
KAWAHARA RYUSUKE (JP)
KAWAHARA RYUSUKE (JP)
Application Number:
PCT/JP2015/059146
Publication Date:
October 01, 2015
Filing Date:
March 25, 2015
Export Citation:
Assignee:
NIHON YAMAMURA GLASS CO LTD (JP)
International Classes:
C03B7/01
Domestic Patent References:
| WO2011118616A1 | 2011-09-29 |
Foreign References:
| JPH10160553A | 1998-06-19 | |||
| JPH0733445A | 1995-02-03 |
Other References:
See also references of EP 3109205A4
Attorney, Agent or Firm:
SUZUKI Yoshimitsu et al. (JP)
Yoshimitsu Suzuki (JP)
Yoshimitsu Suzuki (JP)
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