Buffing wheel based on fiber ropes containing chopped fibers and production method of buffing wheel

Abstract

The invention discloses a buffing wheel based on fiber ropes containing chopped fibers. The fiber ropes are wound, shaped and cured to form the buffing wheel after being subjected to glue and / or base glue treatment, wherein the fiber ropes contain the chopped fibers penetrating the fiber ropes. Through surface grooves formed by stereo structures of the fiber ropes, grinding, scrap returning and cooling of the buffing wheel are facilitated, and conditions are provided for development of new self-sharpening crazing; through the round structures of the fiber ropes, certain gaps are formed among the fiber ropes during shaping so as to form flat structures facilitating grinding, scrap returning and cooling; the chopped fibers penetrating the fiber ropes completely puncture all independent fiber ropes so as to improve structural strength and interlayer stripping of the whole buffing wheel, and further, safety is improved and losses caused by breakage of interlayer stripping are reduced.

Description

technical field [0001] The invention relates to a polishing wheel based on a fiber rope containing chopped fibers, which belongs to the field of polishing tools. Background technique [0002] The various polishing and grinding tools currently produced mainly contain three major categories and have the following defects: [0003] ① Resin grinding wheel - due to compact structure, poor heat dissipation, hydraulic molding, and dense structure. General resin-bonded grinding wheels (bonded abrasives) are mainly made of abrasives and resin binders after mixing, molding, and heating and hardening. The use of this type of grinding wheel has problems such as the need for large cutting forces and serious heating of the workpiece. defect. The pores in the large porous grinding wheel (bonded abrasive) are generally filled with fillers (such as walnut shells, refined naphthalene, etc.) that can be burned (ie carbonized) at temperatures above 130 degrees during hardening treatment. fal...

AI Technical Summary

Problems solved by technology

However, natural fibers will also carbonize and fail under such conditions

[0004]② Hemp wheel - low polishing efficiency, such as (several layers of sisal are sewn together, only the end face participates in polishing)

There is following shortcoming in the sisal fiber polishing wheel prepared by this method: one, because the sisal fiber length used has only 4-12cm, thus the sisal fiber of polishing wheel comes off easily in use, makes the service life of polishing wheel shortening; 2. Due to the limitation of needle punching density, it is impossible to ensure that any part of the polishing wheel can be tightly bonded, which will also affect the use effect of the polishing wheel

[0005]③ Nylon wheel - the abrasive utilization rate is not high, because the low heat generation of nylon TG will cause softening, resulting in a decrease in the holding force of the abrasive, so that the abrasive does not fully participate in the polishing It will cause waste if it falls off; at the same time, it may contaminate the surface of the workpiece due to heat and softening

The polishing wheel produced by this method is molded but has no porous material, so the whole structure is very dense and has no gaps, which will easily cause the surface temperature of the polishing wheel to rise during the entire polishing process. The workpiece to be ground will also have a large surface temperature rise, which will cause stress concentration and may contaminate the surface of the workpiece to be ground

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