Moveable Mould Design STATIONARY MOVEABLE MOULD DESIGN
1. INTRODUCTION
Gula Melaka or Palm Sugar is a nutrient-rich, low- glycemic crystalline sweetener that tastes, dissolves and melts almost exactly like sugar. It is acquired from the flowers growing high on coconut palm trees; liquid flower nectar. In traditional method, the fresh sweet palm neera is boiled down shortly after collection to make palm syrup and Gula Melaka. To concentrate the nectar into solid sugar, the fresh juice is boiled down and evaporated before being poured into bamboo sections to form cylindrical shapes [1]. The demands of the Gula Melaka are currently very high and the manufacturers which use traditional method must take action to increase their production [2]. Hence, a new modern method are required to increase the capacity 2. METHODOLOGY 2.1 Design The design processes are according to the engineering design processes proposed by Pahl and Beitz [3] that includes clarification of the task, conceptual design, embodiment design and detail design. In traditional process, we observed that the process arrangements are cooking, pouring, cooling, demoulding and packaging of Gula Melaka. Morphological chart is used by listing few possible solutions for the problem. It is to establish any essential aspects that are necessary to the process. Then, we made few concepts as in Table 1. For concept evaluation and screening, we utilize the Pugh Matrix Evaluation [4] and it shows that Concept 2 has the best features, with highest weighted total. The selection criteria are based on the performance, durability, ease of handling, safe to use, feasibility and cost. Table 1 Concepts Generation Concept Process Pouring Cooling Demoulding 1 Nozzle Fan Piston 2 Jar Pouring Cooled Chillers Piston 3 Injection Room Temperature Shaking Motion 4 Injection Fan Mould Opening In traditional method, bamboo moulds need to get wet for easy demoulding process [5]. By eliminating this process, it will prevent water from the bamboo to be absorbed by Gula Melaka. Thus, aluminium mould that consists of “mould inserts” with tapered drilled bore hole is suggested as replacement for easy separation of the Gula Melaka from the mould by means of gravity as well as easy maintenance and cleaning. In addition, aluminium has a light weight, high strength to weight ratio, corrosion resistance and formability [6]. A set of mould has 36 pieces of standard size mould inserts as illustrated in Figure 1. This enable constant volume for each single piece of Gula Melaka. Figure 1 Mould Insert Dimension.2.2 Process Flow
The overall process flow from pouring to demoulding for the new semi-auto line of Gula Melaka is summarize in Table 2 and illustrated in Figure 2.Parts
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» Thermal Conductivity Testing METHODOLOGY
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» Thermal Properties Test METHODOLOGY 1 Preparation of Nanofluids
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» RESULTS AND DISCUSSION 1 Main and Interaction Effects
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» Stationary Mould Design STATIONARY MOVEABLE MOULD DESIGN
» Moveable Mould Design STATIONARY MOVEABLE MOULD DESIGN
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» Process Flow METHODOLOGY 1 Design
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» METHODOLOGY The concept design started with the concept generation
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» ACKNOWLEDMENT Thanks to Universiti Teknikal Malaysia Melaka
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