Diamond wire cutting machine and diamond wire replacing method thereof

Abstract

The invention discloses a diamond wire cutting machine and a diamond wire replacing method thereof. The diamond wire cutting machine belongs to the technical field of wire cutting technology and solves the problems that in the prior art, a diamond wire cutting machine is poor in cutting continuity, uneven in wire mesh tension and poor in product quality. The diamond wire cutting machine comprises a paying-off wheel, a take-up wheel and main rollers; the input ends of the main rollers are sequentially connected to the paying-off wheel, a first winding displacement wheel and a plurality of guide wheels through diamond wires; the output ends of the main rollers are sequentially connected to the multiple guide wheels, a second winding displacement wheel and the take-up wheel through diamond wires; a plurality of groups of parallel diamond wires are wound around the surfaces of the main rollers; and the paying-off length of the paying-off wheel is at least 100m longer than the sum of the total length of the diamond wires wound around the lower surfaces of the main rollers in a cutting process state and the length of the maximum advancing wire amount. According to the diamond wire cutting machine and the diamond wire replacing method thereof, the connecting wire end is always located at the take-up wheel, and therefore the phenomenon that breakage occurs again can be avoided, the cutting continuity can be guaranteed, and the wire mesh cutting force can be homogenized by adopting a complex-wire cutting method.

Description

technical field [0001] The invention belongs to the technical field of wire cutting technology, and in particular relates to a gold wire cutting machine and a steel wire replacement method thereof. Background technique [0002] In recent years, with the rapid development of integrated circuits and solar photovoltaic industries, the multi-wire cutting technology used for high-efficiency, high-precision, and low-cost processing of hard and brittle materials such as monocrystalline silicon, polycrystalline silicon, and sapphire has been favored at home and abroad. focus on. In "Huang Jie. Research and development of wire tension control system for multi-wire cutting machine [D]. Hangzhou: School of Mechanical Engineering, Zhejiang University of Technology, 2010", the working principle of multi-wire cutting machine was disclosed, and the tension control was studied at the same time. However, problems such as uneven tension of the working wire net and easy generation of line mar...

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Problems solved by technology

In "Huang Jie. Research and development of wire tension control system for multi-wire cutting machine [D]. Hangzhou: School of Mechanical Engineering, Zhejiang University of Technology, 2010", the working principle of multi-wire cutting machine was disclosed, and the tension control was studied at the same time. However, problems such as uneven tension of the working wire net and easy generation of line marks on the feed surface caused by the replacement of the steel wire in the multi-wire cutting machine have not been solved. Moreover, after the replacement of the steel wire, the weld is likely to break again, and then As a result, the cutting process cannot be guaranteed to be continuous

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