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Patent Searching and Data


Title:
ANGLE-CLEARING-FREE WELDING METHOD AND DOUBLE-HEAD CUTTING SAW HAVING AUTOMATIC MACHINING FUNCTION
Document Type and Number:
WIPO Patent Application WO/2016/165450
Kind Code:
A1
Abstract:
Disclosed is a method for welding uPVC doors and windows without angle clearing. The method is configured to weld a fillet weld. The fillet weld is formed by joining a left welding unit and a right welding unit. The joining inner side surfaces of the left welding unit and the right welding unit opposite to each other are cutting surfaces. Before the left welding unit and the right welding unit are welded, a cutting saw is used to perform inward milling on outer surfaces of outer contours of the cutting surfaces to form grooves thereon having a width of 1-4 mm and a depth of 1.5-3 mm, such that the material molten upon welding the cutting surfaces does not overflow to the surface and remains in the grooves, thus eliminating the need of angle clearing after welding, achieving seamless joint, and particularly achieving seamless joint of patterns when welding profiles having natural wood grains and patterns on the surfaces thereof. Also disclosed is a double-head cutting saw for trimming an end surface and an end surface contour in the above described process.

Inventors:
LIU HAITAO (CN)
ZHANG ZHILONG (CN)
DONG MING (CN)
Application Number:
PCT/CN2016/072486
Publication Date:
October 20, 2016
Filing Date:
January 28, 2016
Export Citation:
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Assignee:
TAICANG WEGOMA MACHINERY CO (CN)
International Classes:
B26D5/06; B29C65/74; B26D5/08; B26D7/26
Foreign References:
CN103737914A2014-04-23
CN203542072U2014-04-16
CN204622613U2015-09-09
CN104786492A2015-07-22
Attorney, Agent or Firm:
NANJING SUGAO PATENT AND TRADEMARK FIRM (ORDINARY PARTNERSHIP) (CN)
南京苏高专利商标事务所(普通合伙) (CN)
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