Title:
DEVICE AND METHOD FOR PREFABRICATING CABLE GROOVE OF SMART PIPE
Document Type and Number:
WIPO Patent Application WO/2023/216370
Kind Code:
A1
Abstract:
A device and method for prefabricating a cable groove of a smart pipe. The device comprises a core pipe extrusion die (1); the core pipe extrusion die (1) is connected to a mouth core die (2); the mouth core die (2) is connected to a co-extrusion strip extrusion die (3); the co-extrusion strip extrusion die (3) is connected to an outlet die (4); the mouth core die (2), the co-extrusion strip extrusion die (3), and the outlet die (4) share a core die; outer die bodies of the core die (2), the co-extrusion strip extrusion mold (3), and the outlet die (4) have equal inner diameters; the inner wall of the outer die body of the co-extrusion strip extrusion die (3) extends into a co-extrusion strip flow channel (31) to form a protruding structure (311) having rounded corners; the core pipe extrusion die (1) extrudes a non-polar substrate; when the non-polar substrate is extruded to the position of the outlet die (4), the co-extrusion strip extrusion die (3) starts to extrude a polar substrate from the outlet die (4); after the extrusion, shaping and cooling are performed, and an co-extrusion strip is stripped off; after the stripping, a stable and uniform prefabricated notch is formed and a smart cable is directly embedded; and the stripped co-extrusion strip is recycled by means of a granulator for reuse. The device can effectively avoid damage to a pipe, can implement notches having different cross-section forms, and is low in cost.
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Inventors:
HUO FULEI (CN)
CHU ZHANPENG (CN)
LIU QINYUAN (CN)
CHU ZHANZHOU (CN)
CHEN JIANGHUI (CN)
LIU YUEMING (CN)
LI PENG (CN)
CHU ZHANPENG (CN)
LIU QINYUAN (CN)
CHU ZHANZHOU (CN)
CHEN JIANGHUI (CN)
LIU YUEMING (CN)
LI PENG (CN)
Application Number:
PCT/CN2022/100132
Publication Date:
November 16, 2023
Filing Date:
June 21, 2022
Export Citation:
Assignee:
LINHAI WEIXING NEW BUILDING MAT CO LTD (CN)
ZHEJIANG WEIXING NEW BUILDING MATERIALS CO LTD (CN)
ZHEJIANG WEIXING NEW BUILDING MATERIALS CO LTD (CN)
International Classes:
B29C48/32; B29C48/09; C08K3/04; C08K5/098; C08L23/08; C08L23/28; C08L27/06; C08L55/02
Foreign References:
| EP1650006A2 | 2006-04-26 | |||
| JPH1090568A | 1998-04-10 | |||
| CN111647240A | 2020-09-11 | |||
| CN216230678U | 2022-04-08 | |||
| CN214082746U | 2021-08-31 | |||
| JP2007223091A | 2007-09-06 | |||
| US5162120A | 1992-11-10 | |||
| JPH1138288A | 1999-02-12 |
Attorney, Agent or Firm:
HANGZHOU ZHEKE PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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