Design and development of a semi-automatic broomstick-making machine of fresh and dried coconut leaves with rachis dual cutter and dust collector/ Kenjie A. Valencia, Lalaine C. Lacambra, John Hyskao R. Nati, Theresa Anjelica Danielle B. Rafols, and Marie Andrea C. Rodriguez.--

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Valencia, Kenjie A [author]

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TextPublication details: Manila: Technological University of the Philippines, 2025.Description: x, 102pages: 29cmContent type:

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BTH TJ 145 V35 2025

Dissertation note: College Of Engineering.-- Bachelor of science in mechanical engineering: Technological University of the Philippines, 2025. Summary: The Philippines, as the second-largest producer of coconut products, utilizes every part of the coconut plant for sustainable industrial use. One such application is the production of broomsticks from coconut leaves by extracting the midribs. This study developed a semi-automatic coconut broomstick-making machine to improve production efficiency and reduce the limitations of manual labor. The machine features a dual cutter, rubber rollers (in place of abrasives), feeder guide, dust collector, and chain and gear transmission systems. The machine was evaluated using fresh and dried coconut leaves to measure production rate, de-leafing efficiency, and dust collection effectiveness. It processed 15 fresh leaflets per minute with 68.89% peeling efficiency and 18.67 dried leaflets per minute with a lower 51.79% efficiency. Dust collection was effective at 83.97%, though minor leakage was noted. The machine showed stable performance at batch level, de-leafing around 23 of 30 leaflets per cycle, though it fell short of the target rates of 20 fresh and 25 dried midribs per minute due to feeder and roller limitations. Compared to reference machines, the prototype showed similar or better feeding efficiency but lower de-leafing success, particularly against De Vicente et al.’s model. However, it remains a safer and faster alternative to manual processing. Economic analysis showed strong viability, with profit margins exceeding 38% and a payback period under 212 days. Recommended improvements include adjusting brush clearance, sealing dust chamber gaps, integrating a scraper to prevent jams, and widening feeder slots to enhance throughput and reliability.

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Item type	Current library	Shelving location	Call number	Copy number	Status	Date due	Barcode
Bachelor's Thesis COE	TUP Manila Library	Thesis Section-2nd floor	BTH TJ 145 V35 2025 (Browse shelf(Opens below))	c.1	Not for loan		BTH0006428

Bachelor's thesis

College Of Engineering.--
Bachelor of science in mechanical engineering: Technological University of the Philippines,
2025.

Includes bibliographic references and index.

The Philippines, as the second-largest producer of coconut products, utilizes every
part of the coconut plant for sustainable industrial use. One such application is the
production of broomsticks from coconut leaves by extracting the midribs. This study
developed a semi-automatic coconut broomstick-making machine to improve production
efficiency and reduce the limitations of manual labor. The machine features a dual cutter,
rubber rollers (in place of abrasives), feeder guide, dust collector, and chain and gear
transmission systems. The machine was evaluated using fresh and dried coconut leaves to
measure production rate, de-leafing efficiency, and dust collection effectiveness. It
processed 15 fresh leaflets per minute with 68.89% peeling efficiency and 18.67 dried
leaflets per minute with a lower 51.79% efficiency. Dust collection was effective at
83.97%, though minor leakage was noted. The machine showed stable performance at
batch level, de-leafing around 23 of 30 leaflets per cycle, though it fell short of the target
rates of 20 fresh and 25 dried midribs per minute due to feeder and roller limitations.
Compared to reference machines, the prototype showed similar or better feeding efficiency
but lower de-leafing success, particularly against De Vicente et al.’s model. However, it
remains a safer and faster alternative to manual processing. Economic analysis showed
strong viability, with profit margins exceeding 38% and a payback period under 212 days.
Recommended improvements include adjusting brush clearance, sealing dust chamber
gaps, integrating a scraper to prevent jams, and widening feeder slots to enhance
throughput and reliability.

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