Conveyor belt wrap adjusts tension to prevent damage and wear. A device controls tension, while conveyor wrap adjusts chain tension. Incorrect tension can cause damage or inefficiency.
Conveyor belt wrap is the process of adjusting the tension on a conveyor belt. This process prevents damage to the belt and other equipment within the conveyor system and prevents premature wear of components. The term “conveyor belt rewind” can also refer to a specific device used to control the tension of the conveyor belt; the design of such a component will vary based on the type of conveyor system used, but generally the component consists of a metal frame that attaches to the conveyor frame, as well as one or more set screws that will move one or more cylinders.
Conveyor wrap can also be a component used to adjust the tension of a chain component in the drive system. Powered conveyors often use chains that move around the gears to power the belt system, and as the chain stretches or wears out from regular use, it will need to be adjusted. One way to adjust conveyor tension is to simply pull a link off the chain, but this could lead to problems with uneven wear or incorrect chain length. The conveyor wrap component is then used to add or release pressure on a guide pulley around which the chain will slide.
When the winding component is used to adjust belt tension, more than one unit may be used. Each unit will be mounted on both ends of a special tension pulley around which the belt will run. When the bolt in the conveyor socket is turned in one direction, more tension can be added to one side of the pulley; when turned the other direction, less tension will be added to that side of the pulley. Both sides of the pulley can be adjusted to correct the tension on the belt. The pulley itself is usually mounted out of line with the rest of the cylinders or pulleys to give maximum adjustability.
Different types of damage or inefficiency can occur if a conveyor belt is not used. If the belt is too tight, it can snap or wear excessively and very quickly, causing system failure. If it’s too loose, it may slip on the reels, meaning the tape won’t move effectively along its path. A loose belt can also lead to excessive wear and can snag on other conveyor system components.
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