The application of traditional conveyor belts on the factory assembly line often causes product deviation, deviation, etc., workshop workers spend time and effort to adjust, Miou anti deviation conveyor belt is a series of conveyor belts developed for products with anti deviation requirements. According to the addition of some guide bars on the surface or bottom of the conveyor belt, the anti-deviation characteristics can be achieved. And used in many industries, praised by customers. During the use of the pvc conveyor belt, sometimes there will be deviations. We add guide bars on the back of the pvc conveyor belt, so that it is not easy to deviate. Of course, in addition to preventing the deviation of the pvc conveyor belt, there are other uses for adding guide bars. 1. Protect both sides of the pvc conveyor belt. The deviation of the PVC conveyor belt will cause wear on both sides. 2. Lift and cut off.

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Oil resistant conveyor belt delamination? How to choose oil resistant conveyor belt

With the increase of people's demand, there are more and more types of conveyor belts, and oil-resistant conveyor belts are one of them. The food industry has a great demand for oil-resistant conveyor belts. However, many people found that the surface of the oil-resistant conveyor belt did not peel off and break during use. The main reasons for the delamination of oil-resistant conveyor belts are: 1. The problem of raw materials, the oil-resistant conveyor belt has high requirements for raw materials. If the requirements are not up to standard, the oil-resistant effect will be greatly reduced, resulting in delamination and cracking during use. 2. The problem of material composition, the oil-resistant components that need to be added to the oil-resistant conveyor belt, and some oil-resistant components of poor quality are selected for the sake of cheapness, which also leads to serious delamination of the oil-resistant conveyor belt.

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CHINAPLAS 2019

CHINAPLAS 2019 was held as scheduled in Guangzhou, in sharp contrast to the current weakness in the machinery industry. This exhibition, which is second only to Germany's K exhibition in the world, is booming. The exhibition attracted more than 150,000 visitors from all over the world. Come to observe, there are many buyers who ordered plastic manufacturing equipment or plastic products on the spot. The exhibition is like a huge stage. Each exhibitor has launched colorful booths to show the best side of their products. The dazzling exhibits demonstrate the infinite charm of China, the world's largest plastic product production and consumption, showing the Chinese plastic industry market. A thriving bright future.

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Several wear conditions of conveyor belt

1. The friction between the frame and the conveyor belt. The conveyor belt sometimes deviates due to defects caused by the manufacture, installation and use of the conveyor. When the deviation is too much, the conveyor belt will contact with the idler bracket and the frame, which will cause the edge glue to wear and even turn the conveyor belt. 2. The friction between the baffle of the guide chute and the conveyor belt. The wear of the baffle to the conveyor belt is a special kind of wear, such as improving the design method of the baffle and paying attention to maintenance, this kind of wear can be almost prevented. 3. The friction between the roller and the conveyor belt. The lower cover rubber of the conveyor belt is also subject to friction by the self-aligning idler and the forward inclined grooved idler, and wear occurs at the transition section from the grooved idler to the drum and at the curved protrusion of the conveyor. 4. The friction between the cleaner and the conveyor belt. The wear caused by the cleaner on the conveyor belt is usually uniform, but when a harder steel plate is used as the cleaning plate, if it is used improperly, the rubber other than the dirt will also be cut off. When foreign objects enter between the cleaner tip and the conveyor belt, it can also create deep scars along the entire length of the conveyor belt. After understanding the above conditions, pay attention to observation in the future transportation process, and adjust the situation immediately to ensure the service life of the conveyor belt.

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Nylon conveyor belts must be placed in rolls and must not be folded

Nylon conveyor belts must be placed in rolls during storage, and must not be folded. During the storage period, they should be turned over once a quarter. In order to reduce the impact and wear of the material on the tape, the feeding direction should follow the working direction of the tape; the drop of the material falling on the tape should be minimized; the feeding port should avoid the top of the roller or idler; the tape receiving section The idler distance should be shortened and the buffering method should be adopted. In order to prevent the tape from being scratched, the contact part of the scraper cleaning device and the unloading device with the tape should be a rubber plate with suitable hardness, and a tape head with a cloth layer should not be used. The connection between the diameter of the drive roller of the conveyor and the cloth layer of the conveyor belt, the matching of the drive roller to the reversing roller and the requirements for the groove angle of the idler should be reasonably selected according to the design rules of the conveyor. Prevent the tape from being blocked by racks, struts or block materials, and prevent it from breaking and tearing. In the process of use, prevent the idler from being covered by the material, which will cause the rotation to be ineffective, prevent the leakage of the material from being stuck between the roller and the tape, and pay attention to some lubrication, but the conveyor belt should not be oiled.

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Solutions to several common installation defects of rubber conveyor belts

When using rubber conveyor belts, it should always be considered to protect the use of rubber conveyor belts to make them better for production. The storage and transportation of rubber conveyor belts should pay attention to using the correct method, which can greatly improve the service life of the conveyor belt. At the same time, attention should also be paid to the installation process, providing effective solutions for everyone: 1. The installation length of the rubber conveyor belt is not suitable Whether it is new belt installation or old belt replacement, if the installation of the entire conveyor belt is not carefully planned and calculated in advance, it is easy to cause the conveyor belt to be lengthened, and the direct consequence is the counterweight (heavy hammer counterweight) hitting the ground, causing the start to skid. Although there was no problem at the time and there was no problem in the test drive, the configuration position was low. After running for two or three months, the counterweight sag and hit the ground when starting. This is because the plastic deformation and elastic deformation of the conveyor belt are not taken into account during the installation process. The conveyor belt should not be too short when installed, and a certain margin should be reserved for future maintenance. If the length is basically at the small place where the screw is tensioned. After using for a period of time, there is a problem with the joint, and the conveyor belt is not enough to redo the joint, so the new belt has to be reinstalled. This makes our conveyor belt waste in vain. At the same time, the enterprise suffers certain unnecessary losses. This is something we don't want to see in production. The ideal installation situation of the conveyor belt is that the length of the conveyor belt after installation is moderate (we should take into account the difference in the effect of temperature on the expansion rate of the conveyor belt in summer and winter), so that a margin for a joint can be reserved. 2. The quality of the joint is not good enough The supervision of the joint gluing of the conveyor belt is an important part of the installation process of the conveyor belt. The quality of the joint directly affects whether the conveyor can operate normally. Belt breakage accidents caused by quality problems of vulcanized joints occur frequently, which not only affect production, but also cause personal injury. The quality of the joint is reflected in the use effect. If the temporary control is not strengthened during the bonding process, it is difficult to see the problem only by the completion acceptance. Therefore, it is important to strictly control the quality of the vulcanized joint during the installation of the conveyor belt.

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Types and characteristics of high temperature resistant tapes

1; Teflon tape Teflon tape performance: 1. Used between low temperature -70 ℃ to high temperature 230 ℃. Thickness 0.08mm; 0.13mm; 0.18; 0.25mm2. Resistance to ozone, oxygen, light and weathering, excellent weather resistance in field use, lifespan can reach 10 years 3. High insulation performance, dielectric constant 3-3.2, breakdown voltage 20-50KV/MM Main uses: 1. Electrical insulation: Silicone cloth has a high level of electrical insulation, can withstand high voltage loads, and can be made into insulating cloth, casing and other products. 2. Non-metallic compensator: Silicone cloth can be used as a flexible connecting device for pipelines, which can solve the damage to pipelines caused by thermal expansion and contraction. Silicone cloth has high temperature resistance, anti-corrosion, anti-aging performance, good elasticity and flexibility , can be widely used in petroleum, chemical, cement, energy and other fields. 3. Anti-corrosion: silicone rubber coated glass fiber cloth can be used as a pipeline, an internal and external anti-corrosion layer for storage, with excellent anti-corrosion performance and high strength, and is an ideal anti-corrosion material. 4. Other fields: Silicone rubber coated glass fiber membrane structure materials can be used in building sealing materials, high temperature anti-corrosion conveyor belts, packaging materials and other fields Teflon tape has smooth surface, good anti-adhesion, chemical corrosion resistance, high temperature resistance and excellent insulation performance. It is widely used in packaging, thermoplastic, composite, sealing and heat sealing, electrical and electronic industries. The fabric-reinforced Teflon tape has the characteristics of high strength and can be used in the drum of the sizing machine, thermoplastic demolding and other industries. It can be used repeatedly and is easy to replace. 2; polyimide tape Polyimide film tape can be customized according to customer's withstand voltage requirements. The specially treated high temperature resistant insulating material polyimide film is the base material, which has excellent insulation, wear resistance, acid and alkali resistance, can withstand high temperature of 300 degrees / 10 minutes, and can be used for a long time at 180 degrees. The length of the product specification is 33M, and the width can be arbitrarily cut into different shades of amber series. The electrical properties of this product are high insulation, high temperature resistance, low temperature resistance, acid and alkali resistance, low electrolysis, good mechanical properties, abrasion resistance, tear resistance, special adhesive treatment, strong adhesion, and the masked surface will not be damaged after tearing. Residual glue remains.

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Description of Natural Rubber

Natural rubber (NR) is a natural polymer compound with cis-1,4-polyisoprene as the main component, and 91% to 94% of its components are rubber hydrocarbons (cis-1,4-polyisoprene). Diene), the rest are non-rubber substances such as protein, fatty acid, ash, sugar, etc. Natural rubber is the most widely used general-purpose rubber.

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New rubber composite material: thermal conductivity comparable to metal, soft as rubber

In recent years, soft thermal management materials exhibiting high heat dissipation properties, such as thermal interlayer materials and heat sinks for flexible electronic devices, have attracted much attention. In addition to high thermal conductivity, these materials also require mechanical properties such as low Young's modulus, high tensile strength, and high toughness. Therefore, as the next generation of thermally conductive flexible materials, flexible rubber materials and composite materials of CNF and CNT with high thermal conductivity have been vigorously researched and developed. Nanofibers (Celluouse Nanofibers, CNF) are made of cellulose (Celluouse) after nano-processing (ultra-micronization), and have the characteristics of "lightness, toughness and environmental protection". The reason why CNF is getting attention is because of one of its properties - "it is one-fifth the weight of steel, but more than five times stronger than steel". When mixed into resins and rubbers, lightweight, high-strength auto parts can be made. Carbon nanotube CNT is a tube (multi-walled carbon nanotube) formed by coaxially winding a single-layer graphite into a tube (single-walled carbon nanotube) or a single-walled carbon nanotube along the coaxial layer. The diameter of carbon nanotubes is generally between one and several tens of nanometers, and the length is much larger than its diameter. It has many extraordinary physical properties (mechanical, electrical, thermal) and chemical properties, and is a one-dimensional carbon nanomaterial. As the material with the best mechanical properties discovered so far, carbon nanotubes have high tensile strength, Young's modulus and fracture strain.

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The history of rubber

Rubber trees have taken root in Sri Lanka and Malaysia, but the fly in the ointment is that at that time, the planting industry in these two countries was mainly coffee, and people did not realize the great value of rubber trees. In the early 10 years when it took root in Asia, the planting of rubber trees was more for the purpose of scientific research. It was not until the 1890s that coffee rust devastated the coffee planting industry in the entire South and Southeast Asian regions. Out of the need to fill the vacancy, the rubber planting industry embarked on a road of rapid development. By 1907, the rubber plantation area in Sri Lanka and Malaysia had exceeded 300,000 hectares. In addition to seizing the opportunity "created" by rust, the efforts of scientists have also provided a strong impetus for the development of the industry. Among them, Henry Ridley, a British scientist who was then director of the Singapore Botanic Gardens, contributed the most. His invention of the continuous rubber tapping method can be regarded as a milestone in the history of the development of the rubber industry. Inside the rubber tree is a tissue called a milk duct, which is similar to the mammary glands in animals and is responsible for the manufacture and storage of latex. When the milk duct is ruptured by an external force, the internal pressure will "push" the latex out. Since most of the milk ducts are located in the bark, the rubber picker only needs to cut the bark and the latex will flow out of the wound. In South America, workers cut holes in tree trunks with axes. This method cuts through the bark and also damages the cambium beneath the bark. The so-called cambium is a thin layer of tissue between the bark and the xylem of the trunk. Although the cambium is thin, it is very important because both the bark and the trunk are formed by the cells in the cambium, and the trunk can only continue to grow thicker if the cells in the cambium keep dividing and growing. Unlike the "axe opening" method, Ridley's rubber tapping method uses a special knife to cut a very shallow opening in the bark of the rubber tree, but does not touch the cambium. As a result, latex can be collected without serious impact on the health of rubber trees, which extends the availability period of rubber trees from several years to several decades. After using the continuous rubber tapping method, the production efficiency of the Asian silicone rubber product industry has been greatly improved, leaving South America far behind, and Asian countries have begun to occupy the position of the world rubber industry. Advanced rubber tapping technology has put the South American rubber industry at a competitive disadvantage, but it is a disease that is the last blow to it. In 1905, a rubber tree disease called South American leaf blight emerged in rubber plantations in Panama. Leaf blight spread throughout Central America over the next few decades, reaching Brazil in 1930. South American leaf blight is caused by a fungus called Microcyclus ulei. This fungus likes to infect all young parts of rubber trees, especially the young leaves. The infected young leaves first appear gray spots, and then the leaves gradually twist and shrink until they turn black and die. Even if some young leaves are lucky enough to grow into leaves, the leaf blight fungus can still kill them. A large number of leaves of rubber trees infected by leaf blight will eventually die and fall off, and the vitality of the rubber trees and the ability to produce rubber will be seriously damaged.

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