Sanding belt reciprocating and track correcting device of wide belt sander

Abstract

The invention discloses a sanding belt reciprocating and track correcting device of a wide belt sander. A driving wheel is pivoted and fixed on a stand; a bracket is arranged above the stand and is pivoted and fixed on the stand by a shaft lever; a driven wheel corresponding to the driving wheel is pivoted on the bracket; the bracket is driven by a correcting configuration to swing by taking the shaft lever as a fulcrum; the correcting configuration is provided with two rolling assemblies at an interval on the bracket, and the central axes of the two rolling assemblies are parallel mutually so that a fixed distance is formed between the two rolling assemblies; the stand is provided with a cam wheel between the two rolling assemblies, and the central axis of the cam wheel is parallel to the central axes of the two rolling assemblies, so that the cam wheel can toggle the two rolling assemblies at time intervals by utilizing the offset of the cam wheel when rotating around the central axis of the cam wheel; and the bracket can make simple harmonic motion by taking the shaft lever as the fulcrum, so that the single-side abrasion machining situations of sanding belts wound at the peripheries of the driving wheel and the driven wheel can be reduced.

Description

technical field [0001] The invention relates to a belt reciprocating motion and track correction device of a wide-band sander, specifically refers to the technology that the driven wheel bracket can automatically perform simple harmonic motion with the shaft as the fulcrum, so as to ensure that it is wound around the driven wheel and the driving wheel. The abrasive belt on the outer periphery of the wheel can perform sanding operations evenly. Background technique [0002] The inventor applied for an invention patent with the application number of 200710008503.3 and the name of "Broadband Sander Belt Reciprocating Motion and Track Correction Device", which mainly improves the unilateral force processing situation that common broadband sanders often have. , the previous proposal is to pivot a driving wheel horizontally on the machine base, so that a bracket is vertically pivoted on the top of the machine base with a shaft, and the bracket is pivoted with a driven wheel corres...

AI Technical Summary

Problems solved by technology

[0004] (1) The gear box driven by the two cams needs to be specially ordered so that the two cams can be driven synchronously by the two central shafts, because this gear box is not a standardized product, and the installation of the two cams and individual angle correction are too wasteful As a result, the manufacturing cost cannot be effectively reduced, and it is really difficult to realize the growth of economic benefits;

[0005] (2) The time of the correction is designed with bilateral symmetry, but when the processing conditions are bad, the abrasive belt tends to move in the same direction all the time, so this kind of bilateral symmetry correction method is not enough to deal with it, which is why this patent can not break through place

[0006] In view of the disadvantages of high cost and insufficient time for unilateral correction of the previous patent application, the inventor has developed a practical invention based on years of professional experience and experience, continuous conception and research.

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