Automatic weld fillet removing method and automatic weld fillet removing device for plastic-steel door and window welding machine

Abstract

The invention belongs to the field of forming or connection of plastic, and relates to an automatic weld fillet removing method and an automatic weld fillet removing device for a plastic-steel door and window welding machine, in particular to the field of equipment for connection of prefabricated components. A welding procedure and a weld fillet removing procedure are combined and are integrally carried out by a machine, after the welding procedure is finished, the temperature of weld flash is still high, and the weld flash is soft and can be removed immediately by planing. The automatic weld fillet removing method comprises the following steps of: (1) releasing the pressure of a front upward pressing cylinder, so that front upward pressing pincers can move freely; (2) slightly upwards moving rear upward pressing pincers, rear downward clamping pincers and a weld piece; (3) pushing a rear seat and the weld piece to wholly move forwards by a thrust cylinder, and cutting off weld flash on the upper surface and the lower surface of the weld piece by cutting edges of the front upward pressing pincers and front downward clamping pincers; and (4) upwards moving the front upward pressing pincers and the rear upward pressing pincers and discharging materials. The automatic weld fillet removing device is compact in structure and reasonable in overall arrangement. By the method and the device, welded joints are smooth, the strength is high, the production efficiency and the quality of products can be improved, and the total cost of equipment is reduced.

Description

technical field [0001] The invention belongs to the field of molding or connection of plastics, in particular to the field of equipment used for joining of prefabricated parts, and relates to a method and device for automatically cleaning welding corners of a plastic-steel door and window welding machine. Background technique [0002] Plastic steel doors and windows are the fourth generation of new doors and windows after wood, steel and aluminum windows. Its main component is polyvinyl chloride resin, which has the advantages of good heat preservation, heat insulation, sealing, sound insulation and corrosion resistance. The hot plate welding method is used to realize the connection of the frame and the fan. [0003] Chinese patent CN2474300Y discloses a plastic door and window welding machine head, which can realize automatic welding of two stations at the same time, but this machine head can only realize the welding process, and the function is single. On the weldment, an...

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Problems solved by technology

[0003] Chinese patent CN2474300Y discloses a plastic door and window welding machine head, which can realize automatic welding of two stations at the same time, but this machine head can only realize the welding process, and the function is single. On the weldment, another welding fillet cleaning process is required to clean up, which is time-consuming and laborious

Chinese patent CN 102229223A discloses a Y-shaped weld seam cleaning machine for plastic doors and windows, which uses three cylinders to push three broaches to move respectively to realize the weld seam cleaning function and replace manual labor; the weld seam cleaning machine is independent of the welding machine operation, increasing equipment costs and reducing production efficiency

Chinese patent CN 201979648U discloses a four-head corner cleaning machine for plastic doors and windows, which can clean two adjacent welding corner joints at one time, and a rectangular window can be cleaned twice without turning back and forth to form a window, which improves the cleaning speed; The above-mentioned four-head corner cleaning machine adopts the milling method, which has high noise and small milling chips pollute the working environment; the above-mentioned four-head corner cleaning machine does not have the welding function

[0004] The separation of the welding and fillet cleaning procedures of the existing plastic door and window welding machine increases the manpower and material resources and increases the labor time; because there is a long time interval between the two procedures, the weld bead is fully cooled and hard, so it has to be used Powerful removal such as milling and broaching increases energy consumption and deteriorates the working environment

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