Four sharp corner in-phase welding device

Abstract

The invention discloses a four-sharp corner synchronous welding machine, which comprises a machine frame and a working machine head, wherein the upper end of the bedplate of the working machine head is connected with four worktable through slide rails; each worktable is fixedly connected with a supporting plate and a pressure plate bracket; the pressure plate bracket is connected with an expansion rod of a moving air cylinder of the machine head and is provided with a pressure air cylinder and a pressure plate lifting guide rail; the pressure plate lifting guide rail is connected with a pressure plate supporting plate which is connected with a telescopic link of the pressure air cylinder and is connected with the pressure plate through a pressure plate moving guide rail; the pressure plate is also connected with a telescopic link of pressure plate moving air cylinder; the four corner parts of the bedplate below the worktables are provided with linkage extrusion chain wheels, and the four worktables are connected by linkage extrusion chains meshed with the linkage extrusion chain wheels; and the bottom of the bedplate is connected with a crossed positioning welded plate through a welded plate lifting guide rail. The machine can weld a plurality of crossed middle stile door and window components at one time, improves the working efficiency by more than 8 times and achieves good welding quality.

Description

Technical field: [0001] The invention relates to a welding machine for plastic door and window frames, in particular to a welding machine that does not need to cut a V port in the welding of a cross section. Background technique: [0002] Plastic door and window welding machine is an important equipment in plastic door and window processing machinery. The current welding machine is mostly composed of: one or two or three or four heads; when welding window frame seams, only one window frame can be welded. Then reverse the position of the window frame, open the V port again, and then weld the weld on the other side. Therefore, the disadvantage of this welding machine and welding method is that the welding speed is slow, the welding efficiency is low, and the welding seam on the first welding side is easily deformed during turning. In addition, the applicant applied for the Chinese patent "Horizontal Hexagonal Rotary Head Welding Machine" on August 4, 2005. This machine is composed...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a four-point synchronous welding machine for the single-cross, multi-cross centered profiles and single-sided frame welding functions in the overall plastic doors and windows. ""-shaped window frame and "目"-shaped window frame can be welded quickly, and can be welded to single cross, multi-cross center stance and V-port on both sides of the overall door and window that is flat-opened. Welding cross center stance does not need to cut V All cross joints are cut at 90° sharp angles, no positioning plate is needed to position the profile, the welding cycle time is shortened, and an inverted "king" shape with one cross in the middle and multiple crosses in the middle are welded at one time. such as with two cross jerseys )-shaped window frame, high weld quality and fast welding speed

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