If you read part 1 of this article, we have mainly focussed on the belt material itself. However you also have to look at the actual conveyor machine itself if you are going to get this right.

What are the diameters of all the rollers involved (And I mean all the rollers involved) on the machine? Not all rollers are visible; some can be hidden from view inside a centre drive module for example. If you know all of the diameters, then you need to refer back to the belt manufacturer’s brochure again because there will be a minimum roller diameter given for each belt material. The reason for this dimension and the reason why it’s so important is that the more rigid the belt is, the less flexible it is and the less likely it is to wrap around a small roller. If this happens you will lose traction at the drive end and the belt will rise up at each end of the conveyor, not good. On a centre drive conveyor the belt will not want to grip the powered roller and your belt could well remain stationary.

Is the conveyor an end drive or a centre drive? Centre drives usually have pinch rollers and therefore the top and bottom surfaces of the belt will make contact with the rollers, unlike with an end drive. What if you want a flighted belt? Not possible with a centre drive for this very reason.

Will the belt get wet or be cleaned frequently? If you are changing the function of the conveyor to say a food environment, then the likeliness is that the conveyor will be frequently washed. If so, then the bearings may well need to be upgraded and some if not all parts be replaced with stainless steel or plastic components.

What kind of belt tracking does the conveyor have? Some conveyors have “Crowned rollers” that are a slightly larger diameter in the middle of the roller. This is used to align the belt. Some other conveyors use welded on flights or cleats on the underside of the belt that uses grooves in the bed and the rollers to align the belt. Both methods use different belt designs, so be aware.

Like most business projects, checking upon the best conveyor belt must dwell at first on the type and the overall weight of the items or merchandises that will be moved by the belt conveyor. These belts are made for various uses depending on the items that will certainly be hauled by these machines. Presently there are conveyor belts that can withstand high temperature, some are constructed to be oil resistant, others are dubbed as food-grade and the most common of all are the PVC conveyor belt types.
In order to determine on the matter particularly, potential buyers should also verify the measurement as well as dimension of the rollers since these types of products will significantly affect the kind of belt that will be used. As one example of the point of the previous premise, in order that the actual belt can work around small rollers (with regards to diameter), the knife-edge belt conveyor needs to be used along with a thin belt. On the other hand, the measurement of the particular cleats can be another factor that will determine the correct or even ideal size of the rollers most especially if the company wants cleats on the conveyor.

source from http://goarticles.com

Solution:The damaged area, including the belt and mechanical clips were roughened using a grinding machine and wire wheel attachment. Surfaces were then chemically cleaned using a degreasing solvent. Mechanical clips were then primed using a urethane priming agent for metal. A  coat of urethane rubber primer was applied over the  rubber section and allowed to cure for 15 minutes. Next, a urethane  is mixed and applied over the complete repair area replacing the worn or missing rubber. The urethane is smoothed over with a putty knife and allowed to cure for 4 hours.

Urethanes are 100% solids and bond well to rubber and metal. Urethanes are very resistant to abrasion and in many cases will outwear the rubber belt material. Holes that do not damage the overall integrity of the belt can also be repaired by applying mesh material and coating the area with urethane. Urethanes are available in a wide variety of duromters and curing times. Urethanes can also protect equipment where there is sliding abrasion, vibration, expansion, or contraction.

Users should be make sure they have all materials on hand to make repairs before beginning the repair.Several “belt repair kits’ are available commercially that contain all necessary materials for making long lasting, in-field repairs.

Article Source: http://EzineArticles.com/2084369

There are certain types of conveyor belts that can be connected by vulcanization. This section of the Manual of Transportation Engineering is to provide an overview of vulcanization.

The principle underlying the vulcanized splice is the establishment of the adhesion between the band members joined ends at the point of accession. The aim is to develop traction on the joints is the same as the original band. No attempt to physically connect the components in the joint, so that the seams and folds of fabric or steel cable end sleeve cross-holding capacity, etc.

The configuration of splice lengths and sizes designed to ensure continuity of force by the transfer to keep the belt tension stresses from one end of the strip to the other developed by the adhesion between the components of the joint board.

There are several types of vulcanized splice. Each includes dependent methods and facilities are needed on the type of belt, and the nature of vulcanized splice. In the following sections, the most common types of vulcanized splice sites and briefly describes the types of each band is not attempted here, the procedures have been step by step, as these vary between tape manufacturers, types of bands , working conditions, etc. The material for the vulcanized splice single frequency specific question type belt. The methods and materials or equipment recommendations to manufacturers or their representative’s belt can be obtained.

The term “vulcanized” that can be used in a process in which new materials that have a chemical change or a chemical reaction of applying heat and pressure. However, it is often “cold” for the chemical process of vulcanization of rubber belt, in which the new active joint materials in contact with other chemically active materials, without the use of a curing press. In general, the geometry of the joint of the same joints vulcanized hot and cold for him, but the materials are different, of course. The materials and procedures for cold vulcanization must be a rule by the manufacturers of cold vulcanization or their representatives, and rarely by carpet manufacturers. In general, joints, cold vulcanized rubber across the stage, butt or overlap trenches, as described in the following sections, but ignore the advice of a priest curing presses.

In this section, vulcanized splice is entitled to use the term “cure” is not right for splicing thermoplastic bands. In the joints of thermoplastic tape produces a chemical change of materials. By contrast, thermoplastic materials soften when heated and melted to a softened material adjacent components, and then consolidate their original state when cooled. Perhaps a better title for this section can be “vulcanized splice or fused” to take account of the thermoplastic rubber bands.

Conveyor Belts can be broadly divided into fabric/steel reinforced belts and wire mesh belts. The choice depends on the type of use.

According to i-conveyors.com, modern factories use a continuous process to manufacture Conveyor Belts. Apart from increasing the manufacturing efficiency, this method provides longer lengths without splicing. This, in turn, reduces the installation and maintenance cost of the belt.

Simplistically stated, a belt is manufactured by embedding the reinforcing material – textile, canvas, nylon, steel cord, or a combination of them – in polymer slabs, usually rubber, and vulcanizing it. To a great extent, the number and type of plies (layers of reinforcing materials) are major factors that determine the strength of the belt.

Steel-wire-reinforced Conveyor Belts, in which the cords are pretensioned, are extra strong. They are mainly used in mining and handling of heavy material.

Underground mining needs flame-resistant belts. The range also includes oil, chemical and heat/cold resistant belts, and belts that are acid-proof or alkali-proof.

Wire mesh belts have good heat and cold resistant properties. They come with a choice of mesh types. Some have tightly woven mesh. In others the mesh opening is large and enables air passage and water jet cleaning. Wire mesh belts can take on light or heavy loads. They can be used for bakeries, cooking lines and for freezing plants.

Over a period of operation, the belts are likely to become slack. This can be corrected with the use of tensioners, which can be automatic or manually operated. A special type of belting is required for acutely inclined and high-speed conveyor systems.

The choice of Conveyor Belt should be made with expert advice. The manufacturers and consultants would be happy to be of assistance.

Modern factories use a continuous process to manufacture conveyor belts. Apart from increasing the manufacturing efficiency, this method provides longer lengths without splicing. This, in turn, reduces the installation and maintenance cost of the belt.

Simplistically stated, a belt is manufactured by embedding the reinforcing material – textile, canvas, nylon, steel cord, or a combination of them – in polymer slabs, usually rubber, and vulcanizing it. To a great extent, the number and type of plies (layers of reinforcing materials) are major factors that determine the strength of the belt.

Steel-wire-reinforced conveyor belts, in which the cords are pretensioned, are extra strong. They are mainly used in mining and handling of heavy material.

Underground mining needs flame-resistant belts. The range also includes oil, chemical and heat/cold resistant belts, and belts that are acid-proof or alkali-proof.

Wire mesh belts have good heat and cold resistant properties. They come with a choice of mesh types. Some have tightly woven mesh. In others the mesh opening is large and enables air passage and water jet cleaning. Wire mesh belts can take on light or heavy loads. They can be used for bakeries, cooking lines and for freezing plants.

Over a period of operation, the belts are likely to become slack. This can be corrected with the use of tensioners, which can be automatic or manually operated. A special type of belting is required for acutely inclined and high-speed conveyor systems.

The choice of conveyor belt should be made with expert advice. The manufacturers and consultants would be happy to be of assistance.

 Article Source: http://EzineArticles.com/170350

Maybe you have heard about them and maybe you even know what they do however did you ever think about the importance they have in your daily life and how they could affect you if they were not on this earth to sustain the heavy industry age we are currently in? Let me tell you about a thing or two about the impact conveyor belts have on today’s industry.

First of all in the good old days when you did not have conveyor belts you would literally have to break you back carrying the materials that were used in the line of business you had. For example if you would have been working in constructions you would have had to carry all the heavy bags of cement and all the other materials on you back or on your shoulders. If yo would have been working in the metallurgy industry then rest assured that all the metals there would have to go through your hands several times per day and I am sure that metal gloves are not a fashion statement.

Today’s conveyor belts work on the basic principle of two or three pulleys that have a continuous role of material wrapped around them and this way all your heavy materials are simply transported from one place to another at a certain speed that you will choose in advance to spare you all the psychical strain.

This is only for the industrial part however. Did you ever take a moment to think about the ways your life is affected everyday by the presence of conveyor belts?? Let me give you a few examples. When you go to your beloved shopping mall and you have to reach the third floor I’m pretty sure that you will not take the regular stairs and you will use the escalators. They work with conveyor belts so a normal part of your life is governed by the use of conveyor belts.

When you go to your local supermarket and after you have filled you basket with groceries up to the brim you have to go at the counter so that you pay and take all your items home. What do you lay your groceries on until they reach the cashier? Exactly… a conveyor belt that makes sure you do not hold your items in your lap while the one in front of you pays for his products.

Simply put conveyor belts have revolutionised the current industry we have today and at the same time can be encountered in your daily life. Thank you conveyor belts? I would sure say so.

You may also be interested in :Conveyor System,Conveyor Belt

Article Source: http://EzineArticles.com/?expert=Paul_Sandu

Certain types of material handling equipment that help in transferring products from one area to another are commonly known as conveyor systems. These systems can transfer different kinds of material which include food, raw materials and chemicals as well as any other materials that is to be moved from one part of a process to another part of the process involving production or inspection and even packing and dispatching.

When it comes to picking conveyor systems, there are different options available and each will have its own type of conveyor. These conveyors can be belt, overhead, bucket, food, pivoting bucket and pendulum bucket as too vibratory conveyors. Each is normally driven by power obtained from electric motors or they can be powered with the help of vacuum or even air pressure.

Overhead conveyors are normally used when there is need to move items such as assemblies and foods. Though these types of conveyor systems are not cheap, they do help to ensure that the user does not require much manpower and this then means affecting lower operating costs. In addition to being cost effective, these conveyors also use less space and they are also safer to use. They are mostly used in conveying tires, white goods as well as in the car exhaust industry.

Overhead conveyors are normally hung from ceilings or walls that are constructed out of steel and they obviously are preferred because they do not take up much space. In addition, these systems enable the user to conserve manpower as the conveyor can handle all transportation needs and so there is no need to employ people to do the required work. Such systems are also very commonly used in assembly and manufacturing units as well as in warehouses and in distribution centers and they are also widely used in handling of food items.

The bucket elevator type of conveying system is mostly used when there is needed to move bulk materials (flow type) in vertical directions. Mostly, the materials that need to be conveyed using such conveyors are light or even heavy in weight and which can involve items that are very fine or which are large and lumpy.

Belt conveyor systems are mainly used for moving numerous bulky or even individual loads from one point in a processing system to another. These conveyors generally do not cost much and are also specifically designed for use with certain kinds of products and they can easily be controlled with the help of push buttons that can also be coupled with intelligent control systems to provide more accurate movement.

The roller conveyors are also versatile and cost beneficial and they have certainly evolved over time and are now widely being used in heavy duty environments. Examples of use of such conveyor systems include pallet handling and storage of heavier products as well as automotive requirements in which products need to be loaded onto conveyors with the help of machines or forklifts.

Conveyor systems are mostly used in factories where the overhead types are most commonly used. Such systems are very effective, and will prove their worth when there is limitation of space and also when the system needs to be suspended from the ceiling instead of on the floor.

You may also be interested in :Conveyor System,Conveyor Belt

Article Source: http://EzineArticles.com/?expert=Carolyn_Clayton