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Guide roll
Paper machine guide rolls are divided into two types: felt rolls and screen guide rolls. The application parts include pressing, drying, crimping, rewinding and other parts. Felt ducts, wire guide rolls, paper guide rolls, chrome-plated rolls, etc. are all over the front and back of the paper machine. Guide rolls guide and drive the wire and felt in the wet end and drying section of the paper machine. The guide rollers in both areas use the same bearings. However, different lubrication and sealing are used depending on the application location. In the old paper machine, the wet end section is usually lubricated with grease, and the dry section is lubricated with oil. In modern paper machines, both sections are lubricated with oil circulation. Due to different working conditions, the wet end and dry section need to be lubricated with their own oil circulation.
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Vacuum suction roll
The vacuum suction roll is a key equipment in the press section, and its function is to transfer the paper sheet after the wire section is formed to the press section. Whether it is normal is very important to the stable operation of the paper machine.They are mainly composed of a rotating cylinder, a vacuum box inside the cylinder, a bearing support device, and a transmission device
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Calender roller
The calender roll of the ordinary paper machine calender is a harder cold cast iron roll. For a sheet with an uneven surface, the roller surface will only touch the convex part of the surface, and not the low part. The tightness of the contact part is increased, and the strengthened pressure forms a light spot, which makes the surface characteristics uneven. Soft calendering technology uses the denaturation of the elastic roller to absorb unevenness of the paper surface, so that the paper surface is completely in contact with the iron roller surface. After calendering, the tightness of the paper changes smoothly and continuously, and the surface characteristics of the paper are invalid; The area is wide, the calendering time is long and the specific pressure is relatively reduced, which can reduce the thickness (small strength loss) and improve the smoothness.
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Touch roll
Paper making touch roll: it includes a hollow roll core, a stepped long shaft and a stepped short shaft are fixedly installed at both ends of the inner cavity of the roll core, and the outer surface of the hollow roll core is circumferentially covered with an adhesive layer. The inner cavity is a stepped hole structure. The stepped long shaft and the stepped short shaft are respectively installed in the outer end holes of the stepped hole in the inner cavity of the roller core. At the same time, a balance mechanism is arranged on the end face of the roller core. Two balance rings between the end face of the roll core and the stepped long axis and stepped short axis. The touch roll has a compact structure, reasonable design, small diameter of the roller body, light overall weight, and low manufacturing cost, which can reduce the cost of use by customers, and at the same time, it can meet the static balance requirements of the roller body, and is easy to use.
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Stone roller
The stone roller is the main component of the pressing device. There are many types of stone rollers.The natural granite stone roller is an important part of the paper machine for pressing and dewatering. It has the characteristics of smooth surface, high hardness, high strength, acid and alkali resistance. The granite roller has a smooth surface, but has many small pores and is breathable. The performance is good, so the wet paper is easy to fall off, which is especially beneficial to the paper splicing operation, and is widely used in various paper machines.Wulong Rock Roll is the world's highest granite rock roll. This rock roll is formed by a pure natural magma erupted by a volcano.The manufactured paper has high tensile strength and high surface smoothness, and is favored by users all over the country. The service life of large-diameter stone rollers is as long as 15-20 years. Especially for high-grade tissue paper, writing paper, xerographic paper, cigarette paper, cow cardboard, and value-added tax invoice paper.
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Sizing roller
It is divided into upper and lower sizing rollers. This rubber roller is composed of a thick-walled cast iron pipe, a bulky head, and a combination of drying and installation of the shaft head. The roller surface is covered with rubber, and the shaft end is equipped with a bearing seat, a bearing cap, and a bearing.
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