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Patent Searching and Data


Title:
PROFILE EXTRUDER WITH COMPACT TYPE CLOSED PRESSURIZATION HYDRAULIC SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/000428
Kind Code:
A1
Abstract:
Disclosed is a profile extruder with a compact type closed pressurization hydraulic system, the extruder comprising a fixed base (1), and an extruding portion (2), an oil supply portion (3) and a main electrical cabinet (4) that are arranged on the fixed base (1). The oil supply portion (3) comprises a pressurization oil cylinder (31), an oil way plate (33), a cooling mechanism (34), an electric motor pump set (7), a hydraulic loop and a refill valve (5), wherein the pressurization oil cylinder (31) is composed of an oil storage cylinder (311) and a supercharging cylinder (312); the oil way plate (33) is a control assembly for various oil cylinders of the extruder; the cooling mechanism (34) is used for cooling hydraulic oil; the electric motor pump set (7) is used for generating a high-pressure system pressure of the hydraulic oil when the extruder is working; the hydraulic loop comprises a pumping oil pipe (61), an oil conveying pipe I (62), an oil conveying pipe II (63), a working oil pipe I (321), a working oil pipe II (322), and an oil return pipe (35); and the refill valve (5) is arranged on a main oil cylinder (221) and is in communication with the oil storage cylinder (311). The amount of the hydraulic oil used when the profile extruder with the compact type closed pressurization hydraulic system is working is small, and the temperature of the hydraulic oil when same is working can be effectively controlled, such that the service life of the hydraulic oil is effectively prolonged, and the usage cost of the extruder is also saved.

Inventors:
LIANG RUNMING (CN)
Application Number:
PCT/CN2019/106555
Publication Date:
January 07, 2021
Filing Date:
September 19, 2019
Export Citation:
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Assignee:
LIANG RUNMING (CN)
International Classes:
B21C23/00
Foreign References:
CN104690102A2015-06-10
CN109372827A2019-02-22
CN103883743A2014-06-25
CN106050817A2016-10-26
CN104624691B2016-10-05
CN104653525A2015-05-27
GB971688A1964-09-30
Attorney, Agent or Firm:
GUANGZHOU GUANGXIN INTELLECTUAL PROPERTY AGENT COMPANY LIMITED (CN)
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