Elliptical arc-shaped rotary roller cutter of film guide and cutting machine

Abstract

The invention discloses an elliptical arc-shaped rotary roller cutter of a film guide and cutting machine. The elliptical arc-shaped rotary roller cutter is matched with a rotary roller to complete film cutting, and two mounting surfaces which are symmetrically arranged along a rotating shaft are arranged on the periphery of the cylindrical surface of a rotary cutter holder. Each mounting surfaceis provided with an elliptical arc-shaped rotary roller cutter body with an elliptical arc-shaped cutting edge. The shortest distance a between the axis of the rotating shaft of the rotary cutter holder and the outer circle of the rotary roller serves as the short radius of the elliptical arc-shaped cutting edges, the axis of the rotating shaft of the rotary cutter holder serves as a center line,and a serves as the radius, so that a cylinder is made. The intersection point of the plane where the elliptical arc-shaped cutting edges are located and which is parallel to the mounting surfaces andthe axis of the rotating shaft of the rotary cutter holder serves as the center point of the elliptical arc-shaped cutting edges. The rotary roller cutter has the advantages that in the rotating process of the elliptical arc-shaped rotary roller cutter bodies, the elliptical arc-shaped cutting edges and the rotary roller are kept in a tangent state all the time, and only one tangency point exists; meanwhile, noise during working is reduced, and film cutting is successfully achieved.

Description

technical field [0001] The invention relates to the technical field of rubber machinery, in particular to an elliptical arc-shaped rotary roller knife of a film guide cutting machine. Background technique [0002] In the existing rubber tire production process, the film guide cutter is an essential equipment used in the auxiliary system of the internal mixer. Its function is to stretch and unfold the stacked films and divide them into sections according to the weight required by the process. After cutting, it is transported to the rubber scale for weighing, and the weighed film is not allowed to exceed the process requirements. [0003] The currently widely used film guide cutting machine is driven by a motor reducer to drive the rotary knife seat, thereby driving the rotary roller knife and the rotary roller to rotate, and using the rotary roller knife and the rotary roller to form a rotational misalignment while pulling the film in reverse until Cut the film. [0004] At...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art, to provide an elliptical arc-shaped rotary roller knife for a film guide cutter, to solve the problem of unequal distances from each point on the mounting surface of the rotary knife seat to the axis of the rotating shaft, and to make the elliptical arc-shaped rotary roller knife The distances from each point on the body blade to the axis of the rotating shaft are equal. During the rotation of the rotary knife seat, the elliptical arc-shaped blade of the elliptical arc-shaped rotating roller cutter body forms a virtual cylindrical shape. There is always a point that remains tangent to the rotating drum

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