Thin-walled pipe bending device

Abstract

The invention relates to the field of pipe processing, in particular to a thin-walled pipe bending device. The thin-walled pipe bending device comprises a working table. A gas tank and an L-shaped molding die are arranged on the working table. One side of the gas tank is provided with a hose. The free end of the hose is provided with a fixing cover used for fixing one end of a pipe. An air bag connected with the fixing cover through a spring is arranged in the fixing cover. A channel used for allowing air to pass through is formed in the middle of the air bag. The air bag is of a closed structure. The horizontal part of the molding die is provided with a stretching cover used for fixing the other end of the pipe. An iron sheet is arranged on the upper surface of the stretching cover. The end, far from the pipe, of the horizontal part of the molding die is provided with an electromagnet and a controller. The two sides of the vertical part of the molding die are provided with heating parts used for preheating the bent part of the pipe. According to the thin-walled pipe bending device, the pipe is stretched, air and the electromagnet are combined for stretching, and the air bag is used for conducting internal supporting, so that the pipe is good in bending effect and smooth in surface, and the failure rate of pipe bending is reduced.

Description

technical field [0001] The invention relates to the field of pipe processing, in particular to a pipe bending device for thin-walled pipes. Background technique [0002] Pipes are necessary materials for construction projects. Commonly used are water supply pipes, drainage pipes, gas pipes, heating pipes, wire conduits, rainwater pipes, etc. With the development of science and technology, most pipes have also developed from metal materials to plastic materials. At present, the processing of pipes mainly includes feeding, high-temperature forming, low-temperature vacuum setting, traction and fixing, cutting, stacking and other links. In real life or industrial applications, some pipes need to cross a certain angle during installation. For this reason, pipes are often bent to adapt to different installation environments. But now for pipe bending, the integrated bending device is mostly used to realize the bending. However, for thin-walled pipes, this type of machinery is us...

AI Technical Summary

Problems solved by technology

However, for thin-walled pipes, this kind of machinery is used for processing. Due to the stress concentration during the bending process and the relatively thin pipe wall, the surface of the pipe is not smooth and is prone to deformation.

Images