The three large functions of the upper and lower belt systems in the double-sided machine are driven by the driving roller of the double-sided machine. Therefore, it must be able to synchronize with the operating speed of the tile. Otherwise, the adhesive effect of the corrugated board may be adversely affected. The upper and lower belt systems of the double-sided machine have the following functions:
1. Disperse the pressure of the traditional gravity roller to avoid crushed cardboard
2. Providing porous water infiltration channels for some water vapors, absorbing the remaining moisture from the paperboard in the heating section of the double-sided machine, and then absorbing water during the return along the original road.
3, through the contact with the upper cardboard traction cardboard through the hot plate

As we all know, the paper will swell after absorbing water. Because of the different fiber orientations, most paperboards have a larger degree of expansion in the transverse direction than in the longitudinal direction. In the process of the double-sided machine, the lower sheet of paper will become quite dry, and the water will flow upward to the upper sheet of paper, and the physical integrity of the sheet will be maintained while the bonding is completed.

When the flat cardboard comes out of the double-sided machine and enters the stacker, there is often a phenomenon of upward warpage. This is because if the large belt has poor air permeability, the moisture flows back from the upper layer paper back to the relatively dry lower layer paper. As a result, the lower sheet is stretched and the upper sheet shrinks to warp.

Therefore, it is important to remember that the double-sided conveyor belt should have good moisture absorption and air permeability so that the water vapor can freely infiltrate, and the water vapor and the condensed water of the upper sheet paper can also be sucked away. For example, we can choose high-speed moisture-absorbing conveyor belts produced by Shenyang Yubo Industrial Belt Co., Ltd. This special conveyor belt is suitable for high-speed production of tile lines, with high water absorption and release properties.

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The comparison of three common large belts When purchasing large belts, consider the following elements:
Anti-sticky, highly hygroscopic surfaces can be effectively cleaned without damaging the belt's own resistance to wear. This is especially true for the abrasion-resistant volume stability near the edge of the belt that is often in contact with the hot plate (no uneven stretch or shrinkage), straight Run correctly (without deviation)
Long life (at least 60 million meters / 200 million feet)
The light weight can realize the adjustment of the paper web change, configure the automatic liquid spray anti-static device, and the upper and lower canvas belts can automatically adjust the upper and lower canvas belt tension adjusters.

Nowadays, there are three kinds of common large belts, including acupuncture belts, cotton belts and open mesh belts.

Acupuncture is based on polyester fiber, rayon as the basic raw material, processed by multiple processes of acupuncturing machine, it has many advantages such as smooth surface, uniform thickness, no indentation, etc. It is also more wear-resistant, when the belt is new. Breathable, not easily deformed. However, the use of a long time, dust easily clog, resulting in poor air permeability of the belt, poor water absorption.

Cotton belt is made up of multi-layered cotton yarn, chemical fiber blended and woven by weaving machine. It has the disadvantages of large weight, uneven surface and large coefficient of friction, etc. It is not wearable and easy to be deformed, but its air permeability is good. Water absorption is good.

The advantage of the open mesh belt is that it can distribute the water vapor and is especially effective for the production of micro-corrugated cardboard. However, open mesh belts are not suitable for double-sided machines equipped with a gravity stick load system.

Stainless Steel Bottle

And we got a lot of different kinds of Stainless Steel Bottles. For example: Stainless Steel Cola Bottle, a classic design that is popular in the market and easy to use, also looks good. Speaking of looking, our Cola Bottle comes in changeable colors and diverse patterns.

Stainless Steel Bullet Shape Bottle has another classic design of body shape. This makes the bottle look straight and smooth.

Our Stainless Steel Bottles are mostly Stainless Steel Vacuum Water Bottles. They have a double-wall vacuum treatment, so they can ensure your drink keeps as it is. And you don't need to worry about getting your hands cold or hot.

Stainless Steel Single Wall Bottle has a single wall. It sacrifices thermal insulation and improves portability. Holding it in your hand all the time will not cause any discomfort.

Stainless Steel Bottle,Stainless Steel Shaker Bottle,Stainless Steel Bottle 304,Stainless Steel Solid Color Bottle

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