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Related Concept Videos

Machines01:19

Machines

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Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. One example of a machine is the cutting plier, which is used to cut wires by applying forces to its handles. When equal and opposite forces are exerted on the handles of the cutting plier, they cause the cutting edges to come together and apply equal and opposite reaction forces on the wire, which are greater than the applied forces.
A free-body diagram of the...
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Brick Cutting Techniques01:08

Brick Cutting Techniques

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Brick-cutting techniques involve various tools and methods to shape bricks for construction. A mason's hammer with a chisel-pointed end is used for basic shaping through sharp, precise strikes. For more complex shapes requiring higher precision, a power saw with a water-cooled diamond blade is used.
Cut bricks are categorized by size. Bricks cut to half their original length are called half-bats, while those cut to three-fourths their length are known as three-fourth bats.
Special types of...
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Mechanical Efficiency of Real Machines01:14

Mechanical Efficiency of Real Machines

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The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
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Development of a lemon cutting machine.

A Hrishikesh Tavanandi1, S Deepak1, K Venkateshmurthy1

  • 1Department of Food Engineering, CSIR- Central Food Technological Research Institute, Mysore, 570 020 India.

Journal of Food Science and Technology
|December 6, 2014
PubMed
Summary
This summary is machine-generated.

This study introduces a novel hygienic lemon-cutting device, automating the process for improved efficiency. The machine efficiently cuts lemons into four uniform pieces using a unique blade assembly and rotating plates.

Keywords:
Centralizing discDesign developmentLemon cutting machinePrototypeWing shaped knife

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Area of Science:

  • Agricultural Engineering
  • Food Processing Technology

Background:

  • Manual lemon cutting is labor-intensive and poses hygiene challenges.
  • Existing methods lack efficiency and consistency in fruit processing.

Purpose of the Study:

  • To design and develop a hygienic, automated device for cutting lemons into four equal pieces.
  • To improve the efficiency and consistency of fruit cutting processes.

Main Methods:

  • Developed a machine utilizing stationery cutters and a rotating centralizing/locating slit plate concept.
  • Incorporated a unique knife assembly with two bird wing-shaped knives and a vertical knife for a single-sweep cut.
  • Employed six rotating slit plates with grooves, driven by an electric geared motor, to guide the cutting blades.

Main Results:

  • The prototype machine achieves a cutting capacity exceeding 5,000 lemons per hour.
  • The device ensures hygienic processing by minimizing manual contact.
  • The automated system produces uniformly cut lemon pieces.

Conclusions:

  • The developed lemon-cutting device offers a hygienic and efficient alternative to manual methods.
  • The machine's design demonstrates potential for large-scale application in the food processing industry.
  • Further research could explore adaptations for other similar fruits.