Automatic hot melting welding machine and welding method

Abstract

The invention provides an automatic hot melting welding machine. The automatic hot melting welding machine comprises an upper bottom plate, a clamping unit, a supporting unit and a fixing devic, wherein the clamping unit is arranged on the upper bottom plate, the supporting unit is arranged on the upper bottom plate, the fixing device is arranged on the upper bottom plate and is positioned in themiddle of the supporting unit, a hot melting welding machine body and a console are arranged on the upper bottom plate, a controller is arranged in the console, a hot melting sleeve is attached to a pipeline to be welded through the fixing device, the hot melting welding machine is controlled to heat the hot melting sleeve through the console, the controller comprises an SSR, an SCR, a PLC and anAD acquisition module, and voltage and current signals are correspondingly collected, converted, displayed and heated and controlled through the SSR, the SCR, the PLC and the AD acquisition module. According to the automatic hot melting welding machine, a motor which is internally arranged in an upper arc plate is used for driving a gear C to rotate so as to drive the upper arc plate to slide in asliding groove A of a lower arc plate, and then the hot melting sleeve is driven to carry out complete sleeving on the pipeline to be welded.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to an automatic hot-melt welding machine and a welding method. Background technique [0002] When welding polyurethane pipe joints, the joint insulation is the key point of the whole project. Waterproofing during construction is the most important thing to ensure the quality of joints. Therefore, it is necessary to ensure that the pipes are not soaked by groundwater during the jointing process and that the polyurethane foam is dry. Check whether the polyurethane foam at the end is infiltrated with water before the interface is insulated. If the polyurethane foam at the end is infiltrated with water, remove the polyurethane foam containing water. On-site high-pressure foaming machines are used for polyurethane foaming to ensure that the quality of interface polyurethane is equal to that of pipes. [0003] Electrothermal fusion welding is a common practice in domestic insulation pi...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that manual operation is time-consuming and laborious, and the quality of welding cannot be guaranteed, the present invention provides an automatic hot-melt welding machine, including:

Images