Title:
HYDRAULIC PRESS MACHINE FOR FIBER-REINFORCED PLASTIC PRODUCT
Document Type and Number:
WIPO Patent Application WO/2021/208404
Kind Code:
A1
Abstract:
A hydraulic press machine for a fiber-reinforced plastic product. Columns (2) are mounted at four corners of a worktable (4). The tops of front and rear rows of columns are respectively connected to each other by means of upper cross beams (1) extending along left and right directions. Pull rods (10) are respectively inserted into the front part and the rear part of each column. The upper ends of the pull rods respectively penetrate through the tops of the upper cross beams and are fixed onto the upper cross beams by means of upper nuts. The lower ends of the pull rods respectively penetrate through the bottom of the worktable and are fixed onto the worktable by means of lower nuts. Intermediate cylinders (5) are respectively mounted in the intermediate parts of the upper cross beams. Side cylinders (6) are symmetrically mounted on left and right sides of the intermediate cylinders, respectively. Lower ends of plungers of the intermediate cylinders and the side cylinders are all fixedly connected to the top of a sliding block (3). Return cylinders (7) and mold opening cylinders (8) are respectively provided between columns on the same side. The return cylinders and the mold opening cylinders on the left and right sides are diagonally distributed. The intermediate cylinders and the side cylinders are respectively connected to an oil tank by means of a prefill valve (D0). The hydraulic press machine for a fiber-reinforced plastic product has a large worktable area, a long stroke of the sliding block, and a large pressing force, and avoids the stress concentration problem caused by the large worktable surface.
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Inventors:
LUO GUILIN (CN)
QIAO LIHUI (CN)
QIAO LIHUI (CN)
Application Number:
PCT/CN2020/124674
Publication Date:
October 21, 2021
Filing Date:
October 29, 2020
Export Citation:
Assignee:
JIANGSU GUOLI METAL FORMING MACHINE TOOL CO LTD (CN)
International Classes:
B30B1/34; B29C70/42; B29C70/54; B30B15/00; B30B15/04; B30B15/16; B30B15/26; F15B11/17
Foreign References:
| CN111572082A | 2020-08-25 | |||
| CN111572083A | 2020-08-25 | |||
| CN110682569A | 2020-01-14 | |||
| CN109760365A | 2019-05-17 | |||
| US20090126545A1 | 2009-05-21 | |||
| CN202826168U | 2013-03-27 | |||
| CN1559792A | 2005-01-05 | |||
| CN110154434A | 2019-08-23 |
Attorney, Agent or Firm:
NANJING SUKE PATENT AGENT LIMITED LIABILITY COMPANY (CN)
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