Views: 71 Author: Site Editor Publish Time: 2022-06-20 Origin: Site
The basic working principle of the manual stone polishing is that the main motor drives the main shaft to rotate and the main shaft drives the polishing plate to rotate. The handle can make the grinding plate move along the stone surface and move up and down within a certain range. The pressure device can generate a certain grinding pressure on the stone surface and complete the grinding movement of the stone surface. The polishing pressure is mainly determined by the hardness of the processed stone. The higher the stone hardness is, the higher the pressure is. Polishing range of the manual polishing machine is determined by the length of the front and rear swing arms. Different types of equipment are mainly different in the specification of Machinable stone, the lifting stroke of rocker arm, the diameter and rotation speed of grinding disc, etc.
Structure of manual stone polishing machine
Front arm part
Back arm part
Machine main body
Processing technology of manual stone polishing machine
Rough grinding, fine grinding and polishing of large numbers of flats can be completed simultaneously on manual stone polishing machine. The processing technology of manual polishing machine is as follows.
Rough grinding. The main purpose of rough grinding is to solve the flatness and thickness of the flat. The technological operation requirements are: before starting the machine, the flatness of the two sides surface shall be checked with a flat ruler, and the smoother surface of the side shall be determined as working side. Grind the smoother side first, then grinding bottom surface, and then check the thickness based on the bottom surface.
Fine grinding and finish grinding mainly include grinding with No. 2, No. 3 and No. 4 grinding tools step by step. The scratches left by the previous grinding must be removed by next processing step. Through fine grinding, the coarse and shallow grinding lines on the surface of the rough grinding flat can be removed. Each grinding tool needs to work for 5-8mm. The No. 5 and No. 6 grinding head are used for finish grinding. Each grinding head needs to be working about 5mm thickness, and the glossiness is more than 50, which can be transferred to the next process for polishing.
Polishing is to maximal show the inherent pattern, color and glossiness of stone materials and meet the customers requirements. The basic principle to select polishing head is to select white color polishing block for lighter color stone and black color polishing block for darker color stone. When polishing, too much water should not be used. When the size of grinding and polishing stone plate is smaller than the diameter of grinding plate, it is difficult to process. At this time, it is suitable to use the process of grinding before cutting, that is, to finish the grinding and polishing of large-size stone plate first, and then cut it into small pieces according to the actual needs. There is no need to supply too much water when polishing. When the slab size is bigger than machine max polishing size, we can polish slab first and then cut later, that means we can finish polishing big size slab and then we cut these polished slabs into smaller size.