| Abstract [eng] |
The main objective raised to this project - employ Single Minute Exchange of Dye (SMED) technique in brand change process examining the shortcomings of the mentioned process. For that purpose as an object of investigation cigarettes brand change process was selected, which consists of two partial brand changes - cigarettes making machine and cigarettes packing machine. Evaluation of brand change peculiarities and SMED application possibilities, possible outcomes, was made based on literature review and actually performed SMED session on the brand change process within company premises. It revealed that not only the time pattern of the current band change is no longer up to date but several of process upgrades are essential in order to increase machine running time, reduce rejects and increase brand security. Brand change process is rather intricate process that includes disturbance in continuous production flow, generates production wastes which need to be purified and eliminated. Next to it, two more sessions were performed including SMED session on planned shift cleaning with aim to connect the two processes planned shift cleaning and brand change. Moreover, one session dedicated to create new design of operators table took place. Economical calculations were done evaluating savings on increased uptime, reduced rejects rate and increased production volume. It proved that the idea was worth implementing owing to several factors. First of all, it was identified during the session that former time frame of the brand change is out of date and no longer comply with current brand change speed. Next, at least three major improvements on process upgrade were initiated including pack pocket sensor, heating plate, and operator's table. Last, current filter feeding system was identified as the one adding up the most to the total machine rejects. Sequentially, an upgrade of the system was initiated. Generalizing, total generated savings would pay the investment of in less than one year time, which is acceptable based on company's practice and general investment principles. A technical drawings supporting modernization were developed including the upgraded filter feeding system, heating plate, inspection pocket and operator's table. Reasonable calculations on parts size, modification pay-offs were made. Presumably, there are no obstacles to, actually, implement the defined modernizations. |
