Thin-walled pipe automatic forming production line

Abstract

The invention discloses an automatic thin-wall pipe molding production line comprising an automatic material feeder, a chipless cutter, a material conveyor, and a piece of automatic pipe molding equipment. A core rod assembly of a chipless cutting device in the chipless cutter comprises a connecting base, a fixed core rod, a movable core rod, a guide bolt and a pressure spring. The movable core rod is provided with an installation through hole inside, and the installation through hole includes a pressure spring installation section which is away from the fixed core rod end and of which the diameter is slightly smaller than that of the bolt cap, and a rear section which is near the fixed core rod end and of which the diameter is slightly smaller than that of the bolt body, so that the movable core rod can move eccentrically when the core rod assembly performs cutting. The joint surface of the fixed core rod and the movable core rod includes an outer annular plane and a middle spherical surface, so that the movable core rod can return to the original position under the action of the pressure spring after the completion of cutting, and chipless cutting can be completed. The invention provides the automatic thin-wall pipe molding production line which is based on the thin-wall pipe chipless cutting technology and is high in production efficiency and low in production cost.

Description

technical field [0001] The invention relates to pipe processing equipment, in particular to an automatic thin-wall pipe forming production line. Background technique [0002] Thin-walled pipes after bending are widely used in industrial production. The pipes need to be cut before bending. The traditional cutting machine adopts the sawing method, which will not only generate a lot of chips, but also deform the pipes, which need to be corrected before For subsequent processing. This makes the production cost of thin-walled pipe products higher and the production efficiency is low. The existence of the calibration process increases the difficulty of fully automatic production of pipes. However, with the continuous increase of domestic labor costs, the pipe bending industry has an increasingly strong demand for pipe processing automation. To realize the fully automated production of pipes, in addition to solving the problem of pipe end cutting and deformation, it is also nece...

AI Technical Summary

Problems solved by technology

However, the pipe fittings cut by the three hobs in the hob cutting device have a retraction phenomenon, and the pipe ends still need to be corrected before they can be used in the next process; The obtained pipe fittings are deformed in the punching direction, and the nozzle is not circumferentially contracted, and the pipe end needs to be corrected before it can be used in the next process

[0004] The cutting device of the latest chipless cutting machine is as described in the patent ZL200910144550.X chipless cutting device for thin-walled pipes. The cutting of thin-walled pipes is realized by moving the movable mandrel following the moving cutting die, and the movable mandrel is completed. Return to the original position after cutting to facilitate the next set of pipes to be cut. This device can realize chipless cutting of pipes, but the structure of the mandrel assembly is complex and the manufacturing cost is high

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