Máquina automática de corte de papel usando mecanismo de Genebra

Automatic Paper Cutting Machine Using Geneva Mechanism

Automatic Paper Cutting Machine Using Geneva Mechanism

ABSTRACT

The design of paper cutting machine using Geneva mechanism is very useful for cutting papers into equal and accurate dimensions. The Geneva mechanism is an indexing mechanism that converts continuous movement into intermittent movement. Due to the intermittent movement, the paper is moved between the time intervals of the cutting periods. Then, paper cutting is carried out by the crank and lever mechanism. The cutter will return to its original position due to the spring effect.

This machine is also used to cut various types of products from paper, plastic, thin film, leather, non-ferrous metal slices, etc. This system can be applicable in the paper cutting industry and proves how it can be a low-cost solution in production practice See also: Mechanical Project of Paper Slitting and Rewinding Machine

Automatic Paper Cutting Machine Using Geneva Mechanism Automatic Paper Cutting Machine Using Geneva Mechanism

INTRODUCTION

Traditional manual lever cutting machine has disadvantages viz. does not offer safety to the operator. It is not easy to use as every time the user needs to adjust the paper to the desired cutting position and hold the paper before cutting it. It is a very time-consuming and tedious process to carry out work with different cutting sizes, therefore, the accuracy of work performed on this machine also depends on the operator's skills.

To overcome the problems, an automatic paper cutting machine is designed to reduce the time of marking and cutting papers.
The Geneva mechanism is a commonly used indexing mechanism where an intermittent movement is required.

The conventional Geneva mechanism is generally simple and inexpensive. Because there is no special curved profile on any of the components except straight lines and circular arcs.

Paper cutting is done by crank and lever mechanism. After cutting, the spring connected to the cutter will bring the cutter back to its original position.

The main purpose of this machine is to reduce paper marking time. Hence this machine is working completely based on time. It has wide application area in book or notebook manufacturing industry, business card or label manufacturing industry, etc.

See also: Design and manufacture of a manually operated paper recycling machine Mechanical Design

Main components of the projects:

  • GENEVA WHEEL: In our Geneva, the drive wheel has four grooves and therefore advances one step of 90 degrees for each rotation of the drive wheel. Consequently, intermittent movement is achieved in 1/4 of 360 degrees.
  • WHEELS: A sprocket or sprocket is a profiled wheel with teeth, gears or even sprockets that engage with a chain. Sprockets are used to transmit force between two shafts via roller chain.
  • ROLLER CHAIN: Roller chain is the most commonly used type of chain drive for transmitting mechanical power between two sprockets. It consists of a series of short cylindrical rollers joined by side links. It is driven by a toothed wheel called a sprocket.
  • PAPER CUTTER: A paper cutter is a tool designed to cut paper with a straight edge. Paper cutters vary in size. This paper cutter is used as an oscillator in the four-bar crank and lever mechanism.
  • COIL SPRING: A coil spring, also known as a coil spring, is a mechanical element typically used to store energy and later release it. This coil spring is used to return the cutter to its original position.
  • ROD: A shaft is a rotating machine element used to transmit power from one place to another. This axis is an integral part of the machine itself. The crankshaft is an example of a machine shaft.
  • PAPER ROLL: Paper roller is an element used to roll up paper during intermittent movement. The paper roll is used to feed the paper without causing damage.

WORKING PRINCIPLE

The handle is attached to the crank (sprocket). If the handle is turned,

1.When the cam pin is in the extreme right position, that is, in the engagement position, the crankshaft will be in the extreme lower position. Consequently, the cutter will be in the fully open position and the spring will be in the rest position.

2. When the cam pin is in the extreme lower position, that is, in the disengaged position, the crank shaft will be in the extreme left position. Therefore, the cutter is in partial cutting position and the spring will be in partial tension.

3.When the cam pin is in the extreme left position, that is, in the disengaged position, the crankshaft will be in the extreme upper position. Therefore, the cutter is in full cutting position and the spring will be at full tension. 4. When the cam pin is in the extreme upper position, that is, in the disengaged position, the crankshaft will be in the extreme right position. Therefore, the cutter is in partial cutting position and the spring will be in partial tension. Thus, paper cutting is achieved by the above four processes of the Geneva and the cutter.

MERIT:

1.No need to mark the paper.

2.This will reduce paper marking time.

3.The paper dimension will be accurate.

4. Manufacturing cost is lower.

5.No noise pollution.

6.Compact size.

7.Can be used for small scale industries.

8.You can easily change machine elements

LIMITATIONS:

1.It is not possible to cut paper over 15 cm wide.

2. It is not possible to cut a bunch of papers, that is, more than 5 papers.

3.Cannot be used for large-scale industries.

FORMS:

1. It can be used in paper cutting industries.

2. Can be used in paper making

3. It can be used in many small-scale paper industries.

4. It can be used to cut colorful papers for design.

5. Can be used in stationery stores.

Buy project template:

Contact Details:

Mr.

projectpark111@gmail.com

Crowd number: 901100321
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