Analysis on the characteristics of the hottest con

Analysis of conveyor belt characteristics (Part 1)

I. overview

the special conveyor belt for corrugated line is an important accessory installed on the double-sided machine of corrugated board production line. Its main functions are:

(1) conveying cardboard

(2) conduction pressure; The linear pressure pressed by the gravity roller is converted into plane pressure through the belt surface and transmitted to the paperboard to supply the adhesive force required when the glued multilayer single-sided corrugated paperboard is bonded with the inner paper and the face paper

(3) heat preservation and moisture dissipation: the bonding and drying of the paperboard during the transportation process, while the temperature maintained by the conveyor belt itself is used as the temperature compensation for the paperboard. The corn starch adhesive between the corrugated board layers can be gelatinized evenly, and the moisture can be quickly distributed through the weaving gap, so as to ensure that the upper and lower sides of the board get the best drying effect

the performance and quality of conveyor belt is one of the important factors affecting the internal and surface quality of corrugated board. The bonding, compounding, drying effect and surface quality (such as peel strength, moisture content, straightness, flatness, etc.) of the glued single-sided corrugated board on the double-sided machine are closely related to the conveyor belt. The internal and external quality of the conveyor belt itself is also related to the smooth progress of the production process. Once the conveyor belt has major problems (such as fracture, distortion, left-right deviation, etc.), it is bound to lead to the shutdown and production interruption of the whole county. Therefore, industry users attach great importance to the supporting product of tile line conveyor belt

II. Special driving performance of tile line

1. Firmness: during the production and operation process, the conveyor belt continuously bears, resists and overcomes many high-strength stresses and related factors:

(1) pressure load (the gravity roll pressure system presses on the conveyor belt)

(2) friction, that is, the high friction between the conveyor belt and the paperboard and the friction between the pressure system (gravity roll) and the conveyor belt

(3) tension, also known as transmission force, will have a long-term and benign development in the domestic friction and wear testing machine industry! Due to the pressing friction between gravity rollers, conveyor belts, cardboard, heating plates and other different materials, the running tension of the conveyor belt must overcome the friction between the cardboard and the conveyor drive side and the pressure system and the other side of the conveyor belt. High friction will produce high tension (as shown in the figure). The friction between the conveyor belt and cardboard will produce 3000kg tension. When the friction coefficient of the conveyor drive is 0.42 ц When, a pressure load close to three times the tension (i.e. 9000kg) is required. The higher the pressure load, the higher the friction resistance between the conveyor belt and the pressure system. The pressure system should apply a certain amount of pressure to the conveyor belt to generate enough adhesion to avoid slipping with the paperboard. Therefore, the tensile strength of transmission drive is highly required

(4) temperature and humidity: the surface temperature of the heating plate (generally 170 ℃). It is transmitted to the conveyor belt through the cardboard, so the temperature of the conveyor belt itself is maintained at about 70 ℃, and the belt itself is still running under a certain humidity

to sum up, the special conveyor belt for tile wire operates under the adverse conditions of continuous bearing pressure load, tension, friction, temperature, humidity and many other damage factors. In order to achieve ideal durability and high service life, it must have excellent compression resistance, kangla, wear resistance, heat resistance, corrosion resistance and other unique properties to ensure the robustness of the transmission drive

Fuli brand special conveyor belt (woven belt) for tile thread is a multi-layer single weft fabric produced by selecting imported high-strength and high-quality fibers, with reasonable proportion, and its unique weaving process and setting treatment. With its belt weight of kg/m2, belt thickness of mm, 5 Tensile strength of 31kg/mm2, and high temperature resistance of 130 ℃ (COT) - 245 ℃ (PET)

the firmness of Fuli brand transmission drive is reflected in that the belt body is free of water edge, fuzzing, peeling, distortion, vertical longitude and latitude, the belt surface is flat, and the joint is firm (stainless steel hook connection, closed joint, screw connection buttons are used on both sides of the interface). At the speed of 150 m/min, the service life can reach more than 12000 hours. If the band edge is armored with high-temperature Kevlar aromatic fiber, the service life can be as long as 30000 hours

2. Flexibility: the conveyor belt installed on the double-sided machine realizes transmission through winding connection with several roller parts with different diameters. 4. Clean and protect the dead corners, such as the front and rear drive rollers of the double-sided machine, angle wrapping pressing rollers, tension rollers, deviation adjusting rollers, support guide rollers, etc. For the conveyor belt, these rollers have different functions such as driving operation, adjusting tension, stroke correction, support and guidance. Through the above rollers, akoma's current annual goal is to achieve 9% ⑴ 0% EBITDA growth, and its entire stroke is a multi winding and bending operation track. This requires the conveyor to provide support for transaction related services such as warehousing, processing, finance and freight transportation. The belt conveyor must be firm and flexible to adapt to the tight fit with various roller parts