Speaking of roller blinds, I believe many people don't know what it is, especially people in most cities have never seen such a thing as roller blinds. However, for many farmers, especially those who grow fruits and vegetables in greenhouses, the shutter door is an important tool to help them work, and it is their right-hand man and right-hand man. Perhaps everyone has heard more or less that the most important factor for growing fruits and vegetables in greenhouses is temperature. The roofs of all greenhouses have straw curtains or other thermal insulation curtains, which can cover the whole greenhouse. It needs to be rolled up during the day, so that the crops in the greenhouse can absorb light and heat as much as possible, and put it down at night to keep the temperature in the greenhouse as much as possible. The roller is responsible for collecting and releasing these thermal insulation curtains. However, roller blinds sometimes have some problems, such as deviation. The following rabbit will explain in detail the causes and solutions of some roller blind deviation.

First, the grass curtain running deviation caused by the uneven surface of the shed.

When the height of the walls on both sides of the greenhouse is inconsistent, people often ignore this problem because it will not affect the lighting of the greenhouse. However, the height of the walls on both sides is inconsistent, which will lead to uneven surface of the greenhouse. After installing the grass curtain and the rolling machine, the rolled grass curtain will run to one side.

This deviation caused by the uneven shed surface is difficult to adjust in a short time. This needs to be greatly improved, that is, the height of the shed wall should be adjusted to be consistent to ensure the flatness of the shed surface. In this way, when the winder is used, the winding rods on both sides can keep balance and synchronization.

Second, the deviation caused by the inconsistent thickness of the grass curtain.

Some vegetable farmers have to change the straw curtains every year to eliminate some worn-out straw curtains. Some vegetable farmers mix old and new straw curtains. The new straw curtains are often tight and thick, while the old ones are relatively loose and thin. If the collocation is unreasonable, the straw curtain is thick on one side and thin on the other. Under the condition of synchronous winding speed of roller blind, the thicker side is faster, so that it gradually inclines to the thinner side and becomes thinner.

This situation can be improved by spreading the grass curtain on the thinner side and thickening it. In the thin side view, some new or old grass curtains are added to make this side reach the same thickness as the other side, and both sides can be synchronized when rolling the curtain machine, which can improve the deviation well.

Third, the length or distance of the grass curtain is different.

After the grass curtain is laid, the grass curtain hanging in front of the shed should be fixed with the shutter rod of the shutter machine. It is necessary not only to correct, but also to test the test paper and find the deviation in time. Some vegetable farmers ask short-term workers to install straw curtains, and the fixing tightness of the straw curtains is inconsistent. If not checked in time, some nylon ropes of straw curtains will break during use, and some will wrinkle due to looseness. This kind of grass curtain with different tightness will also cause the roller to deviate when pulling the grass curtain.

In the past, the folding and unfolding of these curtains were all done by manpower, which not only made workers tired, but also took more time, thus reducing the time for greenhouse crops to absorb light and heat during the day and reducing labor efficiency. However, with the progress of science and technology, people invented the shutter machine, which liberated more labor and reduced the burden on workers. However, once the machine breaks down, it is our hard-working vegetable farmers and fruit farmers who suffer. Therefore, I hope that Tutu's answer to the question of shutter deviation can help everyone.

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