| Author(s) | Collection number | Pages | Download abstract | Download full text |
|---|---|---|---|---|
| Rehei I. I., Книш Р. О., Ternovyi A. M. | № 2 (86) | 163-173 |
|
|
It is established that during flat die-cutting of cardboard blanks, short-term significant technological forces occur. An analysis of methods for manufacturing cardboard blanks that allow reducing peak technological loads is conducted. Among them, those providing a limited contact area between the pressure means in the die-cutting press are highlighted. A new scheme of a die-cutting press with a pressure segment and a cam-toothed drive mechanism is proposed. The use of a pressure segment ensures a minimal contact area between it and the die-cutting form. As a result, the minimization of technological loads occurs, contributing to the reduction of energy and metal consumption of the die-cutting press. Geometric synthesis of the press is carried out. Its relative geometric parameters, the width of the contact strip between the pressure segment and the die-cutting form, are determined. A methodology for calculating the relative kinematic parameters of the motion of the toothed wheel axis and the toothed rack with a carriage are developed. Based on the research results, quantitative and qualitative characteristics of the change in the relative kinematic parameters of the toothed wheel axis and the carriage drive mechanism are established. Graphical dependencies of kinematic parameters of the motion of the toothed wheel axis and the carriage are constructed depending on the rotation angle of the cam of the cam-toothed mechanism. Based on the study of kinematic parameters of the motion of the toothed wheel, dependencies for determining the relative angular kinematic parameters of the pressure segment rolling along the die-cutting form are derived. The influence of the relative radius of the segment on the change in its kinematic parameters of motion is studied. Corresponding graphical dependencies are constructed. Based on the geometric synthesis of the press and the study of the kinematic parameters of the motion of the pressure segment, directions for further research on force parameters are outlined.
Keywords: segment, die-cutting, press, forces, drive, cam, kinematic parameters, toothed wheel, rack.
doi: 10.32403/0554-4866-2023-2-86-163-173
- 1. Marketolohy informuiut. Rynok kartonnoi upakovky. (2023). Upakovka, 2, 18–21 (in Ukrainian).
- 2. Tendentsii rozvytku rynku upakovky z paperu ta kartonu. (2023). Upakovka, 2, 24–27. (in Ukrainian).
- 3. Shreder, V. L., & Pylypenko, S. F. (2004). Upakovka z kartonu. Kyiv : IATs «Upakovka» (in Ukrainian).
- 4. Ivanko, I., & Kolinko, I. O. (2023). Designing the pressing plate mechanism of the flat die-cutting press: Tekhnolohiia i tekhnika drukarstva, 1 (79), 77–90 (in English).
- 5. Rehei, I., Vlakh, V., Knysh, O., Knysh, R., & Mlynko, O. (2023). Combined double crank wedging drive mechanisms of the press plate used in die-cutting press: synthesis, kinematic and functional: Academic journal of manufacturing engineering, 21, Issue 3, 53–60. Retrieved from https://ajme.ro/PDF_AJME_2023_3/L8.pdf (in English).
- 6. Knysh, O. B., & Sloboda, T. V. (2013). Mekhanika ruinuvannia kartonu pry nozhychnomu rizanni z vykorystanniam hostroho nozha ta nezahostrenoho kontr nozha: Tekhnolohichni kompleksy, 2 (8), 117−122 (in Ukrainian).
- 7. Rehei, I. I., & Fedyshyn, R. I. (2009). Stabilizatsiia tysku v ploskotsylindrovomu shtantsiuvalnomu presi: Upakovka, 2, 47–49 (in Ukrainian).
- 8. Regej, I., Knysz, R., & Knysz, O. (2017). Prasa sztancowalna z użyciem segmentu naciskającego (stabilizacja procesu szancowania): Opakowanie. Warszawa : Wydawnictwo Sigma-NOT, 78–80 (in Polish).
- 9. Prystrii dlia vyhotovlennia rozghortok kartonnoho pakuvannia : pat. 112371 Ukraina: MPK B26F 1/38 (2006.01), B31B 1/16(2006.01) / Rehei I. I., Knysh O. B., Khvedchyn Yu. Y., Knysh R. O. №a201502149 ; zaiavl. 11.03.2015 ; opubl. 25.08.2016. Biul. №16. 3 s. (in Ukrainian).
