Orman kaynaklarının giderek azalması, odun kaynaklarının kapsamlı ve verimli kullanımını ağaç işleme ekipmanı üretim ve ağaç işleme endüstrilerinin karşı karşıya olduğu önemli bir sorun haline getirmiştir. Shenzhen Dongli Kechuang Technology Co., Ltd., CT210 serisi döner kesme makinesine özel frekans dönüştürücüsüne dayanan, döner kesme makineleri için dokunmatik entegre bir çözüm geliştirmiştir. Bu çözüm, mükemmel vektör frekans dönüşüm kontrol performansı, benzersiz döner kesme makinesine özel kontrol algoritması, hassas kuyruk gerginliği kontrolü ve mükemmel acil durum başlatma/durdurma kontrolü sayesinde orta ölçekli ahşap döner kesme makinelerinin uygulama alanında oybirliğiyle övgü almıştır.
Anahtar kelimeler: CT210 dokunmatik entegre döner kesme makinesi
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Günümüzde çok katmanlı kart üreticileri, tek kart üretim sürecinde çoğunlukla metin ve frekans dönüştürücüden oluşan bir kontrol şeması kullanmaktadır. Bu kontrol şemasının kontrol kısmı, kesme tablasının konumu aracılığıyla frekans dönüştürücünün döner kesiminin frekansını hesaplayan ve ardından döner kesimi kontrol etme amacına ulaşmak için frekansı iletişim yoluyla frekans dönüştürücüye yazan metinde yer almaktadır. Bu planın aşağıdaki dezavantajları vardır:
1) Kaba kontrol arayüzü: Dokunmatik ekranlı işletime kıyasla, kontrol metni arayüzü insan-bilgisayar etkileşimini zayıf tutuyor ve ekran estetik açıdan hoş değil.
2) Separate control and drive: The frequency of the frequency converter is given through text communication, and the communication signal is susceptible to interference. In strong interference environments, the tail tension control is not good or even cannot operate normally.
Using a touch screen integrated control solution, the control interface is beautiful and atmospheric, with good human-computer interaction. The rotary cutting control part is located in the frequency converter, and the touch screen only displays. Even if communication is interfered with, it will not affect normal operation, and the system stability is better.
This article will focus on the application of the rotary cutting touch integrated solution based on "touch screen+CT210 rotary cutting machine dedicated frequency converter+CT110 cutting blade frequency converter" on the cardless rotary cutting machine.
Characteristics of rotary cutting machine
The CT210 rotary cutting machine dedicated frequency converter is a specialized product developed on the CT200 frequency converter product platform. The frequency converter integrates the dedicated control logic of the rotary cutting machine into the frequency converter, and has integrated control of rotary cutting, breaking, and shaft pounding. Used for rotary cutting of wood, it has the advantages of uniform and precise rotary cutting thickness, precise tail tension control, etc., fully meeting customer needs. It can enable customers to switch seamlessly. Compared with similar competing products, it has the following product functional advantages:
Unique thickness compensation for better results;
Scheduled shutdown for more flexible business operations;
Integrated control of rotary cutting, fixed length cutting, and shaft pounding;
□ Integrated touch control solution.
Taking the on-site requirements of the rotary cutting machine produced by a certain manufacturer in Shandong as an example, the specific requirements are as follows:
Excellent human-computer interaction, beautiful and clear human-computer interface, accurate and reliable password protection;
Good speed control accuracy, excellent low-frequency output, and even thickness of super large wood rotary cutting can be ensured;
Good weak magnetic control, perfectly suitable for high-speed rotary cutting;
Excellent braking performance, emergency stop and start in 0.2 seconds, fast and stable switching between forward and reverse rotation;
Good overload capacity and environmental adaptability, high operational reliability;
The thickness error of rotary cutting is ± 0.01mm, and the length error of tail tension rotary cutting is ± 15mm;
Accurate statistics on the number of rotary cutting roots and veneer sheets;
Support switching between joystick and human-machine interface for better reliability;
Press the start switch, the frequency converter starts working, and the roller motor starts first (controlled by the output relay of the frequency converter to control the roller motor contactor)
After the start of the roller motor, the screw motor starts after a delay time. If the fast forward switch is pressed, the feed speed will be increased. Otherwise, the feed speed will be calculated based on the actual diameter of the round wood (the displacement of the cutting table is obtained through the input of the screw motor encoder, the actual diameter of the round wood is calculated, and the feed speed of the screw motor is obtained based on the mathematical model). When the rotary cutting blade touches the front stroke switch (circular reset switch), the roller motor immediately stops, and the screw motor will retreat at the set fast retreat speed to the retreat cut-off position (set the mouth position) or retreat to switch the feed displacement, and then feed again, in a cycle. During the retraction process, when the stop time of the pressure roller motor is greater than the restart time of the pressure roller motor, the pressure roller motor will restart
The series of high-performance vector frequency converters have been successfully applied in medium-sized wood rotary cutting machines, providing a more cost-effective frequency converter. It not only effectively solves the problem of tail tensioning, but also provides a more optimized human-machine interface and more convenient debugging methods. While improving the utilization rate of wood, it greatly facilitates user use.