DESIGN OF MOLD FOR GLASS BOTTLE PRODUCTION

Cilj diplomskog rada je konstruirati alat potreban za izradu staklene boce. Prije samog pristupa konstruiranju alata potrebno je dizajnirati staklenu bocu. U uvodnom dijelu rada bit će prikazana povijest stakla te ujedno i povijest staklarstva. Također bit će ukratko opisano poduzeće Vetropack Straža d.d. Nakon toga slijedi opis proizvodnje staklene ambalaže od sirovina do gotovog proizvoda, opis svih dijelova alata koje je potrebno konstruirati za izradu staklene ambalaže te prikaz postupaka proizvodnje ambalaže. Na početku glavnog dijela rada potrebno je dizajnirati staklenu bocu na temelju koje će biti konstruiran alat za izradu same boce. Tijekom dizajna boce uzeti su obzir svi detalji koji bi omogućili realnu izradu boce. Sam dizajn boce proveden je u programskom paketu Siemens NX 12.0. Kod modeliranja, boca se sastoji od dva podsklopa, tijelo boce te grlo boce. Oba podsklopa se nakon toga spajaju u jedan sklop. Nakon dizajna boce slijedi najbitniji dio ovog rada, konstruiranje svih dijelova alata koji omogućuju izradu prethodno izmodelirane staklene boce. Konstrukcija alata će također biti provedena u programskom paketu Siemens NX 12.0. Zatim slijedi numerička analiza metodom konačnih elemenata. Provedena je simulacija izrade staklene boce su programskom paketu NOGRID pointsBlow. Ovom simulacijom je vidljiv raspored temperatura kroz presjek stakla u cijelom procesu izrade te je prikazan raspored debljine stjenke konačne boce. U programskom paketu Ansys 18.1 provedena je analiza toplinskog prijenosa u kalupu. Kvalitetan raspored debljine stjenke boce te uspješno hlađenje kalupa predstavljaju glavne faktore u procesu izrade staklene ambalaže. U prilogu je dana radionička dokumentacija boce te alata.The main goal of this work is to build a tool for making a glass bottle. Before an attempt at making the tool, it is necessary to design a glass bottle. The history of glass and glass-manufacturing will be described in the introductory part of this work. Vetropack Straža d.d. will also be briefly described, followed by a description of how to make glass packaging all the way from raw materials to the final product, a description of all of the necessary tools to construct the glass packaging and a display of processes while making the packaging. At the beginning of the main part of this work it is necessary to design a glass bottle which will be the basis for constructing the tool to make the bottle itself. While designing the bottle, all the details, which would allow realistic fabrication of the bottle, were taken into consideration. The design itself was conducted in a software package Siemens NX 12.0. In modeling, the bottle is made out of two subassemblies, a body and a bottle neck. Both subassemblies then combine into one assembly. After designing the bottle comes the most important part of this work, the construction of all the parts of the tool which allow the fabrication of previously modeled glass bottle. The construction of the tool will also be conducted in the software package Siemens NX 12.0. Numeric analysis with method of final elements al comes afterwards. A simulation of making the glass bottle was performed in a software package NOGRID pointsBlow. This simulation shows the layout of temperatures through glass cross section in whole process of making the bottle and the layout of thickness of the bottle. An analysis of heat transfer in mold was conducted in software package Ansys 18.1. High-quality schedule of the thickness of the bottle and successful cooling of the mold represent the main factors in the process of making glass packaging. The technical documentation of the bottle and the tools is given in the attachment