Silicon ingot cutting machine with novel hypersensitive wire break alarm devices

Abstract

The invention discloses a silicon ingot cutting machine with novel hypersensitive wire break alarm devices. The silicon ingot cutting machine comprises a rack, two home rolls arranged in parallel are mounted inside the rack, metal cutting wires for cutting a silicon ingot are wound onto the home rolls, semi-arc surfaces, making contact with the cutting wires, of the home rolls are the monitoring surfaces of the home rolls, and one or more wire break alarm devices are arranged at the outer side of the monitoring surface of each home roll. Each wire break alarm device comprises a metal induction wire, a detector and a power supply, wherein the metal induction wire is parallel to the home rolls, and the distance between the metal induction wire and the monitoring surface of the corresponding home roll is smaller than the radius of the corresponding home roll. The alarming functions of lapping contact alarming and wire break alarming are adopted and combined into a whole, the metal induction wires are arranged at the outer sides of the monitoring surfaces, and the distance between the induction wires and the monitoring surfaces is largely shortened without the affect of a wire bow. Either lapping or breakage can be captured by the induction wires definitely, and thus sensitivity of induction is largely improved.

Description

technical field [0001] The invention relates to a silicon chip cutting device, in particular to a silicon ingot cutting machine with a novel high-sensitivity disconnection alarm device. Background technique [0002] In the photovoltaic industry, multi-wire cutting machines are commonly used to cut silicon ingots into silicon wafers. The steel wire is released from the pay-off wheel and wound multiple times in the slots of the two main rollers to form a dense and uniform wire network on the main rollers. , collected by the take-up reel. The wire diameter is thin, and there are many windings. Generally, the wire diameter is about 0.1mm, and the winding is about 2000 times. When the steel wire is running, it generally runs in a reciprocating manner, and it is inevitable that a certain point of the wire network will be broken. Once the wire is broken, the broken end will be wound on the main roller itself. If it cannot be detected in time, more and more wire mesh will be missi...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the invention, the present invention aims at the problem that the detection effect of the above-mentioned existing methods for detecting disconnection is poor, and provides a new type of high-sensitivity disconnection alarm device, which has good detection effect, stable function and long life, and is easy to implement. Features of 100% contact after disconnection

Images