Wire cutting machine spindle alarm device and corresponding wire cutting machine

Abstract

The invention discloses an alarming device for a wire cutting machine spindle. The alarming device comprises guide rods, an alarming rod, a first broken wire detection unit, a relay unit, a PLC and an alarming unit, wherein the guide rods are arranged at the two ends of the wire cutting machine spindle; the two ends of the alarming rod are respectively fixed on the guide rods; the first broken wire detection unit is arranged at one end of the wire cutting machine spindle; the relay unit, the PLC and the alarming unit are arranged in a control cabinet of the wire cutting machine; the relay unit is electrically connected with the first broken wire detection unit; the wire cutting machine is integrally connected with a power cathode; the alarming rod is connected with a power anode; under a normal condition, the relay unit can continuously send a signal to PLC through a normally-closed contact; when the wire net of the wire cutting machine is broken, the broken wire head falls onto the alarming rod, the whole wire cutting machine and the alarming rod are formed into a circuit loop, the signal is sent to the relay unit through the first broken wire detection unit, the normally-closed contact of the relay unit is disconnected and the PCL cannot receive the signal sent by the relay unit, so that the alarming unit is controlled to alarm. The alarming device utilizes the circuit connection / disconnection principle to alarm, so that the alarming is higher in reliability and is more sensitive.

Description

technical field [0001] The invention relates to the technical field of photovoltaic module production equipment, in particular to a wire cutter spindle alarm device and a corresponding wire cutter. Background technique [0002] Photovoltaic power generation is one of the main ways to use solar energy at present. Because of its cleanness, safety, convenience, and high efficiency, solar photovoltaic power generation has become an emerging industry that is generally concerned and focused on development by countries all over the world. Therefore, in-depth research and utilization of solar energy resources is of great significance to alleviate the resource crisis and improve the ecological environment. [0003] Silicon wafers are the main production material in the semiconductor and photovoltaic fields. Silicon wafer multi-wire cutting technology is a relatively advanced silicon wafer processing technology in the world at present. It is different from traditional cutting methods...

AI Technical Summary

Problems solved by technology

[0004] However, PV500HD wire cutting machine may occasionally break the wire during the silicon wafer cutting process. There are many reasons for the wire disconnection, such as: the quality of the diamond wire itself, the eccentric wear of the guide wheel, the deep groove of the main roller, and the poor sanitation of the equipment. When a disconnection problem occurs, the equipment must be able to report to the police in time to avoid the company's human and material losses as much as possible

However, the original spindle grounding alarm device of PV500HD wire cutting machine has certain design defects, and it fails to meet the requirements of alarming when the wire is broken.

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