Screw rod polishing and trimming all-in-one machine

Abstract

The invention discloses a screw rod polishing and trimming all-in-one machine which comprises a main shaft tail base rotating mechanism, a polishing wheel high-speed rotating mechanism, a sanding belt feeding transmission mechanism, a mechanical balance weight pressure control mechanism and a trimming wheel. The main shaft tail base rotating mechanism is used for clamping a screw rod and enabling the screw rod to rotate at a constant speed. The polishing wheel high-speed rotating mechanism is composed of a driving wheel, a driven wheel, a sanding belt tensioned between the driving wheel and the driven wheel, and a high-rotating-speed motor used for driving the driving wheel to drive the sanding belt to rotate at a high speed. The angle of the sanding belt is consistent with that of the lead angle of the screw rod clamped by the main shaft tail base rotating mechanism. The sanding belt feeding transmission mechanism is used for automatically feeding the sanding belt at a constant speed according to the screw pitch of the screw rod clamped by the main shaft tail base rotating mechanism. The mechanical balance weight pressure control mechanism is used for enabling the sanding belt to press down constant down pressure on the bottom diameter and the rear angle of the screw rod clamped by the main shaft tail base rotating mechanism to polish the bottom diameter and the rear angle of the screw rod. The trimming wheel is used for trimming the angle between the front angle and the bottom diameter of the screw rod clamped by the main shaft tail base rotating mechanism into a 90-degree angle. The machine has the advantages of being high in automation degree and stable in polishing and trimming quality.

Description

technical field [0001] The invention relates to a screw processing equipment, in particular to a screw polishing and repairing integrated machine. Background technique [0002] Screws are mostly used in plastic molding equipment, such as plastic extruders, injection molding machines, etc. The screw is the core component of the injection molding machine. It is in direct contact with the plastic granules, which affects the feeding of the plastic granules, the stability of injection molding, the plasticizing efficiency, and the quality of plastic products. According to the different screw structures, it can be divided into: single-edge screw, secondary edge screw, double-edge screw, equidistant screw, variable pitch screw, high-mix screw, etc. [0003] The processing technology of the screw is complicated, and the polishing process and the finishing process of the surface in the complex processing process directly affect the quality of the finished screw, thereby affecting the...

AI Technical Summary

Problems solved by technology

However, due to the complex structure and variety of screw rods, which are different from ordinary shaft parts, there are generally problems such as poor polishing quality at present.

[0004]Through the analysis of screw polishing machines at home and abroad, it is found that there are generally the following problems: Although foreign fully automated polishing equipment has a high degree of automation, it is expensive, and the auxiliary screw There are polishing blind areas at the junction of the main rib, the seam, and the feeding port. It needs to be removed from the fully automatic polishing equipment and then manually polished on the polishing platform. The cost performance is not high.

The polishing equipment produced by domestic screw manufacturers is basically pure manual polishing, repairing or screw polishing machines modified for ordinary lathes. Although the price is cheap, first, there is a low degree of automation in polishing and repairing the surface of the screw. The quality of the light is obviously affected by human factors, and the quality is uncontrollable; second, the polishing and polishing of the screw surface are processed at different stations, which leads to quality problems at the junction of the polishing process and the polishing process; third, the ordinary lathe transformation When the screw polishing machine is processing, there is a gap between the pitch gear of the screw and the actual pitch of the screw, which is easy to affect the polishing quality of the screw surface

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