Introduction to relevant knowledge of band sawing machine

Metal band sawing machine is a machine tool used for sawing various metal materials. It is mainly divided into horizontal band sawing machine and vertical band sawing machine.

The main components are: base, bed, column, saw beam and transmission mechanism; Saw blade guide device; Workpiece clamping device; Saw blade tensioning device; Feeding mechanism (automatic Series); Hydraulic transmission system; Electrical control system; Lubrication and cooling system.

Band sawing machine is mainly used for sawing carbon structural steel, low alloy steel, high alloy diamond, special alloy steel, stainless steel, acid resistant steel and other alloys and metal materials. With the development of saw blade technology, ordinary glass, monocrystalline silicon and gem blank gradually enter the sawing menu.

According to the structure, it is divided into horizontal band sawing machine and vertical band sawing machine. The horizontal band sawing machine is also divided into scissors type, double column type and single column type band sawing machine; The vertical can be divided into pulley and sliding table band sawing machine;

It can be divided into manual type and automatic type according to the use and operation;

According to the degree of automation of the controller, it can be divided into manual type, semi-automatic type and full-automatic type. The automatic type is also divided into PLC logic control (NC) and travel switch control;

According to the requirements of cutting angle, it is divided into angle sawing machine (capable of sawing angle of 0 ~ 60 degrees) and 90 degrees vertical cutting without angle.

System functions of band sawing machine:

The hydraulic transmission system is a hydraulic circuit composed of pumps, valves, oil cylinders, oil tanks, pipelines and other components, which completes the lifting of saw beams and the clamping of workpieces under electrical control. Stepless speed regulation of feed speed can be implemented through the speed regulating valve to meet the needs of sawing workpieces of different materials.

The electrical control system is a control circuit composed of electrical box, control box, junction box, travel switch and electromagnet, which is used to control the rotation of saw blade, the lifting of saw beam and the clamping of workpiece, so as to realize the normal cutting cycle according to certain working procedures.

Before starting the lubrication system, oil must be added according to the requirements of the lubrication parts of the machine tool (wire brush shaft, worm gear box, driving bearing seat, worm bearing, upper and lower shafts of lifting oil cylinder, clamping screw rod on the sliding surface of movable vice). The worm gear and worm in the worm gear box are lubricated with No. 30 oil bath and injected by the oil plug hole on the upper part of the worm gear box. The box surface is equipped with an oil standard. When the saw beam is at Zui low position, the oil level should be between the upper and lower limits of the oil standard. The oil shall be changed after one month of use, and then every 3-6 months. An oil drain plug is set at the lower part of the worm gear box.

The saw blade tensioning mechanism is responsible for the tensioning of the saw blade, and the tensioning force of the saw blade must be strictly controlled during use.