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Engraving machine application
date: 2019-05-25
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1. Introduction

At present, CNC engraving machines have gradually become an essential professional tool for production in various industries. With the development of CNC numerical control technology and high-performance inverter controller and servo drive equipment in various production industries, CNC engraving machine has become the mainstream configuration of today's engraving industry.

The spindle system is an important component of the CNC engraving machine, and its performance has a crucial influence on the performance of the CNC engraving machine. As the heart of the spindle system, the frequency converter is an indispensable key component. This paper mainly introduces the application of the frequency converter on the spindle dragging system of CNC engraving machine.

 

2. The composition and working principle of the engraving machine

Today's mainstream CNC engraving machine is composed of three parts: computer, engraving machine controller and engraving machine. Its working principle is to design and typeset the pattern through special engraving software configured in the computer, and transmit the design and typesetting information to the engraving through the computer. In the machine controller, the controller converts the information into a pulse signal capable of driving the stepping motor or the servo motor, and controls the positioning of the engraving cutters of the X, Y, and Z axes on the main body of the engraving machine. At the same time, the controller starts the inverter, drives the engraving head of the spindle motor to rotate at a high speed, cuts and drills the machining materials fixed on the main table, and can engrave various plane or three-dimensional relief patterns designed in the computer. And text, to achieve automatic carving work, according to different processing materials and process requirements, can be combined with different dedicated configuration tools.

 

3. Spindle control system of CNC engraving machine

The spindle system is an important component of the CNC engraving machine, and its performance has a crucial influence on the performance of the CNC engraving machine. The CNC engraving machine requires the spindle system to adopt stepless speed change. At present, the inverter is driven by an asynchronous AC motor. The spindle motor adopts a two-pole high-speed brushless water-cooled motor, which has low noise and large cutting force. The running speed is generally 0~24000r/min, and the corresponding inverter running frequency is 0~400Hz. In order to improve the processing efficiency, a large engraving machine is equipped with multiple spindle heads, and one inverter drives multiple spindle motors at the same time.

With its unique super performance and superior cost performance, the new Cree C500 series engraving machine meets the requirements of wide spindle speed range, high speed stability, strong overload capability, high speed and low torque, and short acceleration and deceleration time. Performance characteristics.

 

4. Electrical wiring diagram of the spindle system

The engraving machine power supply system has single-phase 220V and three-phase 380V. Most models use a single-phase 220V supply. The source frequency of the spindle is mostly given by the analog quantity. The frequency source of the inverter is the 0~10V analog signal output by the numerical control system, and the corresponding running frequency is 0~400Hz. In this way, the spindle can be steplessly regulated, and the spindle cutting speed can be changed in real time according to different engraving objects or engraving processes. It is widely used in medium and high-end engraving machines that require higher and finer engraving processes.

 

5. Classification and application industry of engraving machine

According to the application, CNC engraving machine can be divided into: wood engraving machine, stone engraving machine, advertising engraving machine, cylindrical engraving machine, craft engraving machine, etc.

5.1, woodworking engraving machine is mainly used for wood processing, making it more beautiful.

5.2. Stone engraving machine can engrave calligraphy and painting on stone, ceramics and ceramic tiles.

5.3, advertising engraving machine is widely used to engrave all kinds of signs, plexiglass, stone door, three-dimensional signage, decorative gifts and so on.

5.4. Cylindrical engraving machine, also known as stereo engraving machine, can engrave on the surface of cylindrical objects.

5.5, handicraft engraving machine commonly known as jade carving machine. Its precision is high, the engraving speed is relatively slow, and the table size is also small, which is suitable for fine handicraft engraving.

 

6. Summary

Domestic CNC engraving machine manufacturers are mainly distributed in Jinan, Shandong, Hefei, Anhui, Jiangsu and Zhejiang. The new Corey inverter has excellent cost performance, stable torque characteristics, and perfect after-sales guarantee. It is an ideal choice for the engraving machine industry. It provides the most stable spindle power guarantee and contributes to the vigorous development of the engraving machine market. 


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