Abstract : The successful transformation of the packaging machine's transmission system using Emerson frequency converters has brought significant economic benefits and will serve as a model for the entire Hong Kong tobacco industry. Keywords : Emerson frequency converter, packaging machine, transmission system I. Introduction Chuncheng Cigarette Factory is one of the earliest cigarette factories in Yunnan Province. Currently, it owns multiple cigarette production lines from Morinz, Great Wall, and Smoothie companies. The equipment is generally over 10 years old, and almost all internal components, drive systems, spare parts, and backup machines have experienced failures. Furthermore, it is difficult to procure original components and equipment; even if available, the price and delivery time are unacceptable. Currently, all cigarette production equipment relies on maintenance to maintain operation. Therefore, product technology transformation and upgrading are imperative. The decision was made to utilize existing frequency converters to replace the original transmission devices. The main transmission system of the small oil sealing machine (RC) was the first to be technically transformed. II. Equipment Introduction The Schmermund BI packaging unit from Germany is a post-packaging machine for cigarette machines manufactured by Molins Tobacco Machinery Company in the UK. It completes the entire process of cigarette assembly, initial packaging (inner aluminum foil packaging), finishing packaging, oil sealing, packing, and final assembly. The BI machine consists of three parts: the main unit (BE), the small oil sealing machine (RC), and the carton machine (FHZ/NK). The main unit completes the entire process of packing individual cigarettes into boxes, then conveys them to the small oil sealing machine for cellophane sealing. Finally, the carton machine assembles the cigarettes into carton packaging, which is then conveyed to the packaging workshop for boxing and shipping. The RC system is as follows: The RC system is equipped with a main drive motor with a speed range of 1440-1980 r/min, driving a micro-grooved transmission belt, which in turn drives a disc, which in turn drives a gearbox, achieving a packaging speed of 350-360 packs/min, meaning one pack of cigarettes is packaged per revolution. Meanwhile, the main drive also drives a cam mechanism, which in turn drives an octagonal wheel via a linear grooved wheel to achieve reciprocating intermittent motion. Each rotation of the octagonal wheel triggers a photoelectric switch, causing the single-board computer to perform a reset control, thus continuously sealing the surface of each pack of cigarettes with cellophane. The speed of the main drive motor is controlled by an RC inlet photoelectric sensor. This sensor detects the density of the cigarette packs and feeds the data back to the single-board computer. The single-board computer automatically adjusts the analog voltage (0-sv) output to the frequency converter, and the motor automatically follows. The detailed working process is as follows: The cigarette packs from the main unit are continuously conveyed to the small oil sealing machine. At the entrance of the small oil sealing machine, a 0.75kW motor drives a transmission belt to feed the packs in. There are two photoelectric detection switches at the inlet, which automatically decelerate the frequency converter when the cigarette packs are crowded. After the cigarette packs enter, they are turned and flattened by a ratchet. A cam drives a push rod to move intermittently, pushing an octagonal wheel to feed a pack of cigarettes. The paper feeding mechanism begins the packaging action, sealing the top and bottom of the cigarette pack. Due to the intermittent rotation of the octagonal wheel, the sides are automatically sealed with a soldering iron, and then pushed out by the push rod, completing the corner folding and cellophane sealing. [b][align=center]For more details, please click: Application of Emerson Frequency Converters in B1 Packaging Unit[/b][/align]