Precise pipe cutting mechanism

Abstract

The invention discloses a precise cutting mechanism. The mechanism includes a pulling and conveying mechanism, a cutter mechanism, a tensioning mechanism and a power mechanism, wherein the pulling and conveying mechanism is fixedly connected to a base plate through a gantry crane base, and a roller shaft is connected to a motor through a coupler; the cutter mechanism is fixedly connected to gantry crane columns through a vertical installation base plate, and a cutter die is provided with a cutter seam, a hole for a pipe to be cut and installation bolt holes; a tensioning wheel base is fixedly connected to a base plate of the tensioning mechanism, and a synchronous pulley IV is connected with a synchronous pulley I through a synchronous belt; a pretightening screw rod is connected to a tensioning swinging bar through a pretightening spring, and fixedly connected to the base plate of the tensioning mechanism through a limiting nut and a screw supporting plate. The cutting edges of tubular products processed by the precise pipe cutting mechanism are vertical and smooth, and have no rough parts or notches; by using the precise cutting mechanism, tensile yield or compression-bending plastic deformation can not happen to the tubular products. The space adjustment range of the two rollers is over 10 times bigger than that of existing delivering pipes and pipe cutting devices which adopt a double gear-engagement driving mode, and the universality of the precise cutting mechanism is higher.

Description

technical field [0001] The invention belongs to the field of mechanical design and manufacture of rubber and plastic pipes, and in particular relates to a precise close pipe mechanism. Background technique [0002] In the packaging process of the flexible and semi-rigid radiation cross-linked heat shrinkable tube manufacturing industry, it is necessary to cut preforms up to tens of thousands of meters into meter-level small packaged products. For radiation cross-linked heat-shrinkable tubes (commonly known as busbar tubes) with rated voltages of 1kV, 10kV, and 35kV, there are additional requirements for the cutting process, which is manifested in: due to the harsh service environment of the end of the tube, it is required that the cutting should not have burrs, The notch requires that the incision be vertical and flat, otherwise it is easy to crack; it is also required that when the pipe is fed into the cutting machine, in a series of processes including this simple "cutting...

AI Technical Summary

Problems solved by technology

[0003] The pipe feeding equipment on the existing pipe cutting machine mainly uses two gears meshing to realize double-wheel drive, and the distance between the two rollers is realized by the displacement of the two gears. The range is limited. If you use this mechanism to send pipes, you need to increase the size of the gears, and the diameter range of the applicable pipes is also very narrow, which has poor versatility. pipe

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