Portfolio Bartłomiej Bojanowski
About me My name is Bartlomiej Bojanowski. I come from Poland. I have lived, studied and worked in Denmark for almost 4 years now and I want to highlight some of my projects. In January 2020, I have graduated as Mechanical Engineer from VIA University College in Horsens. Here I present some of the projects I was a part of.
Internship at Tresu Group A/S In August 2018, I have started my engineering internship at Tresu Group, a company that specializes in delivering customized solutions for Flexo printing machines and ancillary products. I was a part of the team of engineers in the department that was focused on delivering custom solutions for packaging industry. Besides many smaller tasks like preparing small parts and manufacturing drawings, updating documentation in SAP and Excel, or preparing visualizations I was involved in a couple of bigger tasks of big significance for the company. I was mostly working in Solidworks and fully explored all its features. One of the challenges was designing a vital part of the gluing machine meant for the client in Germany. I was in charge of developing the length register from scratch, applying changes, creating system of covers for the whole machine and manufacturing drawings for most of the parts.
Length register was a device that was aligning 2 sheets of paper in the correct manner as they are glued in the unit below with the help of glue rollers. Adjusting roll moves up and down in the assembly thus adjusting the position of the sheet on the fly. The position has to be changed constantly during operation due to flex and misalignment in material. System consists of adjusting roller assembly which is placed on a movable rack. Rack is supported by 2 vertical rods and a screw that is turned with the help of the motor unit. Length adjuster is driven with motor and belt. The whole device is placed on a 35 mm steel frame with inspection windows, holes for the rollers and mounting points. The whole device was also equipped with covers that could be removed for maintenance. There is a sensor attached to the doors that prevents the operation with the doors opened and system that prevents the door from opening during the operation.
I have developed the system of covers for the whole machine. Some covers could be stationary and serve also as a support for the rest of the system, whereas others were required to be removed easily and frequently due to the maintenance and operation requirements. Front cover has a grating for inspection purposes. Covers were made of 2 and 3 mm steel plates. Mounted on the frame and with the use extra brackets or extension rods. The sliders were chosen based on the load capacity, availability and range of movement and placed strategically to support load with minimum number of interference with other elements. All sliding covers were equipped with locking mechanism and sensor.
Constant improvement of the design during ongoing consultation with the client was part of the process. I was also responsible for the model of cable routing and checking the model for movement and interference in different configurations. By the end of my internship, the machine was a being assembled, at the company’s workshop, to test its operation. Some minor flaws had to be fixed, but apart from that, everything was coming together as designed. Besides bigger projects, I was involved in numerous smaller tasks everyday, like changing models, drawings and updating documentation, or manuals for certain processes. One of it was developing a concept of a system for manipulating rollers and counter-rollers in the operation of some system. I had to solve the problem of changing vertical alignment of the rollers while maintaining the radial distance to the driving system with dimension constraints. I have created model and description of the concept to the stage where it could be developed further by more experienced engineers.
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