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Patent Searching and Data


Title:
METHOD FOR PRODUCING PLASTIC FUEL TANK
Document Type and Number:
WIPO Patent Application WO/2018/008785
Kind Code:
A1
Abstract:
A method for producing a plastic fuel tank according to the present invention has the benefit of better facilitating production of plastic-walled plastic fuel tanks produced by means of a baffle and parison (20), the method comprising: introducing an accessory (100), comprising a baffle from a baffle loading pin (21), into a cavity (3) formed by molds (1, 2); introducing a parison (200) from top of the molds (1, 2) so as to surround the accessory (100); closing pinch plates (10-1, 10-2) at the bottom of left and right molds (1, 2) toward a blowing pin (23), and then carrying out pre-blow in which air is blown into the parison (200) by the blowing pin (23); closing pinch cores (7-1, 7-2) coupled to the bottom of left and right molds (1, 2) toward the lower portion of the parison (200) that has come out from the molds (1, 2), and carrying out final-blow in which air is again blown into the parison (200) by the final blowing pin (30); and ejecting the parison (200) from the molds (1, 2) following pinch-off of the parison (200) by means of the rotation of the pinch cores (7-1, 7-2) linked to the release of the baffle loading pin (21) into a rotational opening (21a).

Inventors:
KYE TAE-HONG (KR)
YOO JUNG-KEUN (KR)
Application Number:
PCT/KR2016/007447
Publication Date:
January 11, 2018
Filing Date:
July 08, 2016
Export Citation:
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Assignee:
DONG HEE INDUSTRIAL CO LTD (KR)
International Classes:
B29C49/20; B29C49/04; B29C49/42
Foreign References:
KR101633515B12016-06-24
JP2012201074A2012-10-22
KR200364183Y12004-10-08
JP2011183800A2011-09-22
KR20090060809A2009-06-15
Attorney, Agent or Firm:
HANYANG PATENT FIRM (KR)
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