A pipe left and right bending mechanism

Abstract

The invention relates to a left and right elbow bending mechanism for a pipeline. The left and right elbow bending mechanism comprises an overturning unit for driving a headstock to be overturned by 180 degrees, a cylinder barrel which is rotatably connected with the headstock in a vertical direction, a driving unit which is fixed on the headstock and is used for driving the cylinder barrel to rotate positively and negatively, a pair of upper piston rod and lower piston rod which are respectively arranged in the upper part and the lower part of an inner cavity of the cylinder barrel, a right elbow die assembly and a left elbow die assembly which are respectively arranged on the upper end and the lower end of the cylinder barrel, as well as a right elbow profiling assembly and a left elbow profiling assembly which are respectively fixed on the upper end and the lower end of the headstock and are matched with the right elbow die assembly and the left elbow die assembly to realize pipeline bending; a pair of upper hydraulic rotation connector and lower hydraulic rotation connector which are rotatably communicated with the upper part and the lower part of the inner cavity of the cylinder barrel respectively are arranged on the outer side of the cylinder barrel; when the cylinder barrel rotates positively and negatively, the upper hydraulic rotation connector and the lower hydraulic rotation connector are correspondingly communicated with the upper part and the lower part of the inner cavity of the cylinder barrel. The left and right elbow bending mechanism can realize relatively low cost and high working efficiency and is capable of rapidly realizing the purpose of bending a copper pipe in different directions.

Description

technical field [0001] The invention relates to the technical field of pipe bending equipment, in particular to a left and right bending mechanism for pipes. Background technique [0002] In the refrigeration industry, refrigeration copper tubes are a common refrigeration accessory, mainly used for the circulation of refrigerants; however, copper tubes are usually continuously bent for many times during use to control the flow rate of the refrigerant in them. and traffic. When the existing copper pipe is subjected to multiple continuous bending operations in different directions, it is generally carried out by a set of bending machines with a steering mechanism for steering the copper pipe, which can only be bent in a single direction. Curved work. see attached figure 1 Shown is a schematic diagram of the structure of the existing one-way bending machine 100' (the steering mechanism on the existing one-way bending machine is not shown), and the existing one-way bending ma...

AI Technical Summary

Problems solved by technology

For copper pipes that need to be bent in different directions multiple times, the use of the existing bending machine 100' will make the entire bending process too cumbersome, time-consuming, and the quality of the bending cannot be effectively guaranteed. In addition, the entire bending The structure of the forming machine 100' is also too complicated and the cost is high

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