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Tags: MECHANISM, GENEVA, USING, MACHINE, CUTTING, PAPER, FABRICATION, DESIGN, DESIGN AND FABRICATION OF PAPER CUTTING MACHINE USING GENEVA MECHANISM,
 
 
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DESIGN AND FABRICATION OF PAPER CUTTING MACHINE USING GENEVA MECHANISM
Post: #1


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INTRODUCTION:
1.The paper cutting machine is designed, in order to reduce the time for marking and cutting the papers. Geneva mechanism is commonly used indexing mechanism where an intermittent motion is required.
2. The fabrication of 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.
3. spring connected to the cutter will bring the cutter back to its original position.
4.The main puThe paper cutting is done by crank and lever mechanism. After cutting, the rpose of this machine is to reduce time for marking the papers. Hence, this machine is working fully based on timing.


OBJECTIVES:
1.To cut the paper in accurate and equal dimensions.
2.To reduce the time for marking the dimension in paper.
3.To get the paper cutting machine in low cost.
4.To design the machine in compact size.

ABSTRACT:
The design and fabrication of paper cutting machine using Geneva mechanism is very useful to cut papers in equal and accurate dimensions. Geneva drive is an indexing mechanism that converts the continuous motion into intermittent motion. Due to the intermittent motion, the paper is moved between the time intervals of cutting periods. Then the paper cutting is achieved by the crank and lever mechanism. The cutter will be back to its original position by the spring effect.


WORKING PRINCIPLE
The handle is fixed to the crank (sprocket). If the handle is rotated,When the cam pin is in extreme right position i.e. engage position, the crank shaft will be at extreme bottom position. Hence the cutter is in full open position and the spring will be in rest position.
When the cam pin is in extreme bottom position i.e. disengage position, the crank shaft will be at extreme left position. Hence the cutter is in partial cutting position and the spring will be in partial tension.
When the cam pin is in extreme left position i.e. disengage position, the crank shaft will be at extreme top position. Hence the cutter is in full cutting position and spring will be in full tension.
When the cam pin is in extreme top position i.e. disengage position, the crank shaft will be at extreme right position. Hence the cutter is in partial cutting position and the spring will be in partial tension.
Thus the paper cutting is achieved by the above four process of the Geneva and cutter.



MERITS:
1. No need for marking the paper.
2. It will reduce the time for marking the paper.
3. The dimension of the paper will be accurate.
4. Manufacturing cost is less.
5. No noise pollution.
6. Compact in size.
7. Can be used for small scale industries.
8. Can able to change the machine elements easily

LIMITATIONS:
1. Can’t able to cut the papers above 15 cm width.
2. Can’t able to cut bunch of papers i.e. more than 5 papers.
3. Can’t be used for large scale industries

APPLICATIONS:
1. It can able to use in paper cutting industries.
2. It can able to use in paper crafting.
3. It can be used in many small scale paper industries.
4. It can be used to cut the color papers for designing.
5. It can be used in stationary stores.


CONCLUSION:
The design and fabrication of paper cutting machine using the Geneva mechanism is will be very useful in small scale industries. There are many machines based on paper cutting but it has some demerits like large in size, costly, need skilled people to operate and it needs electrical input. But our machine will overcome this demerits by compact in size, less cost, no need for skilled people and there is no need for electrical input. The design procedure is done for fabricating the Geneva wheel and other elements of this machine. The main aim for this machine is to reduce timing for paper cutting and neglect the time for marking the paper, this aim is achieved in our paper cutting machine using Geneva mechanism.
Post: #2
Sir please your contact no.
Post: #3

The design and manufacture of the paper cutting machine using the Geneva mechanism is very useful for cutting papers in equal and exact dimensions. Geneva drive is an indexing mechanism that converts continuous motion into intermittent motion. Due to intermittent movement, the paper moves between the time intervals of the cut-off periods. The paper cut is then achieved by the crank mechanism and lever. The cutter will return to its original position due to the spring effect. The paper cutting machine is designed to reduce the marking and cutting time of the papers. Geneva Mechanism is commonly used indexing mechanism where intermittent movement is necessary. Making the conventional Geneva mechanism is generally simple and inexpensive. Because there is no special curved profile in any of the components except straight lines and circular arcs. The paper cut is made by means of crank mechanism and lever. After cutting, the spring attached to the cutter will return the cutter to its original position. The main purpose of this machine is to reduce the time to mark the papers. Therefore, this machine is working totally based on the synchronization.

[Image: 4.jpg]


Traditional hand lever cutting machine has disadvantages viz. Does not provide operator safety. It is not easy to use because every time the user has to adjust the paper to the desired cut position and hold the paper before taking the cut. It is a very time consuming and tedious process to take a job with different cut sizes so that such machine also work precision on this machine depends on the skills of the operators. A comparison of the position, speed, acceleration and pull between the classic mechanism of the wheel of Geneva and the proposed mechanism is presented. The movement of the pair of non-circular gears is determined by reducing the extreme pull of the Geneva wheel. The design and manufacture of the paper cutting machine using the Geneva mechanism is useful to cut papers in equal and exact dimension. The Geneva drive is an indexing mechanism that converts continuous motion to intermittent motion, because the paper moves between cut-off intervals. The paper cut is then achieved by means of a crank mechanism and a lever. The cutter will return to its original position by spring effect.



 

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