Plastic profile multi-position welding machine and welding method

Abstract

The invention discloses a plastic profile multi-position welding machine, which comprises a first welding machine head, a second welding machine head and one or two intermediate welding machine heads, wherein the intermediate welding machine heads are positioned between the first welding machine head and the second welding machine head; the first welding machine head and the second welding machine head are both provided with front pincers, rear pincers, an L-shaped heating plate and an L-shaped positioning plate; working feed directions of the first welding machine head and the second welding machine head are parallel and opposite to an X axial direction; the first welding machine head forms 90 degrees anticlockwise rotation with a direction of a pincer port welded routinely and linearly; the second welding machine head forms clockwise rotation of 90 degrees with the direction of the pincer port welded routinely and linearly; and each intermediate welding machine head includes four pincer groups, wherein two groups of opposite angles are opposite relatively to the working feed direction and both parallel to the X axial direction, and another two groups of opposite angles are opposite relatively to the working feed direction and both parallel to a Y axial direction. The invention further discloses a method for welding doors and windows which are shaped in an inverted Chinese character wang and for welding doors and windows with two cross-shaped mullions arranged in the middle. By adopting the plastic profile multi-position welding machine and the welding method, pluralities of the plastic doors and windows with the cross-shaped mullions or in the shaped of the Chinese character wang can be welded and formed at one time.

Description

(1) Technical field [0001] The invention relates to a plastic profile multi-position welding machine and a welding method, which are used for one-time completion of plastic doors and windows with a cross shape in the middle and T-shaped mullions at both ends, belonging to the technical field of plastic door and window welding. (2) Background technology [0002] Plastic doors and windows are generally welded. With the widespread promotion of plastic doors and windows, the demand for plastic doors and windows is also increasing, and there are more and more varieties and changes. [0003] The welding process of plastic doors and windows is as follows: the profiles are prepared according to the size of the material, and then the profiles to be welded are placed on the front and rear clamps of the corresponding machine head according to the position of the positioning plate , use the front upper clamp and rear upper clamp to press the profile to fix the profile to be welded on t...

AI Technical Summary

Problems solved by technology

[0004] Let's take the welding of binocular word windows as an example to introduce: the current welding process is as follows: the first step is to weld the upper side stile, the second step is to weld the lower side stile, the third step is to weld the left side stile, the fourth step Welding the stile on the right side, the fifth and sixth steps are to weld the frame materials on the upper and lower sides respectively. There are many processes and the work efficiency is low, so it is not suitable for the requirements of large-scale production lines.

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