Title:
PAPER CONTAINER PRODUCTION DEVICE, PAPER CONTAINER PRODUCTION METHOD, AND PAPER CONTAINER
Document Type and Number:
WIPO Patent Application WO/2020/031318
Kind Code:
A1
Abstract:
A molding device (13) which constitutes part of a paper container production device (10) and is equipped with a pair of vertically moving devices (14), and to which are attached, from the upstream side, a first die (21) which is a scoring means and a second die (22) which constitutes a blank sheet-punching means and a pressing means. In addition, gas cushions (23a-23d) are positioned below the lower die (21b) of the first die (21). The starting paper (57) is continuously supplied from a supply device (11) to the molding device (13), and the scoring in a prescribed location by the first die (21) and the blank sheet punching and container formation by the second die (22) are performed in parallel in the supplied order. When doing so, the gas cushions (23a-23d) improve the scoring accuracy, by correcting the distance between the upper die (21a) of the first die (21) and the lower die (21b) thereof so as to approach the original distance therebetween, regardless of tilting of the upper support body (18) of the vertically moving devices (14).
Inventors:
SHINOHARA TAKAMASA (JP)
TSUTSUKI AYUMI (JP)
TSUTSUKI AYUMI (JP)
Application Number:
PCT/JP2018/029862
Publication Date:
February 13, 2020
Filing Date:
August 09, 2018
Export Citation:
Assignee:
TOYO ALUMINIUM EKCO PRODUCTS CO LTD (JP)
International Classes:
B31B50/25; B31B50/59
Foreign References:
| JP2011212882A | 2011-10-27 | |||
| JP2004136547A | 2004-05-13 | |||
| JP2004231223A | 2004-08-19 | |||
| US5140882A | 1992-08-25 |
Attorney, Agent or Firm:
KASSAI Yasuji et al. (JP)
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