Title:
GLASS ARTICLE MANUFACTURING DEVICE AND GLASS ARTICLE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/132116
Kind Code:
A1
Abstract:
This glass article manufacturing device (11) is provided with a rotation mechanism (12) which rotates a glass tube (G1) and a heating device (14) which heats the glass tube (G1). In the glass article manufacturing device (11), a gripping mechanism (15) which grips the glass tube (G1) is moved by a movement mechanism (16) in the direction for pulling off the end of the glass tube (G1), thereby fuse-cutting the glass tube (G1). By fusion-cutting the glass tube (G1) during operation of a blowing device (17) that blows air towards the inside of the glass tube (G1), the glass article manufacturing device (11) ensures an open state of the end surface formed by fusion-cutting of the glass tube (G1).
Inventors:
IWASAKI TAKANORI (JP)
YONEZAWA TAKEHIRO (JP)
TANAKA TAIKI (JP)
YONEZAWA TAKEHIRO (JP)
TANAKA TAIKI (JP)
Application Number:
PCT/JP2020/047585
Publication Date:
July 01, 2021
Filing Date:
December 21, 2020
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
C03B33/085; B26F3/08; C03B23/043; C03B23/045; C03B23/057
Foreign References:
| JPS4840583A | 1973-06-14 | |||
| JP2008168327A | 2008-07-24 | |||
| JP2015535794A | 2015-12-17 | |||
| JP2002274872A | 2002-09-25 |
Other References:
See also references of EP 4023615A4
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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