Talking about the Production and Weaving of Heavy Tape Core
overview： Talking about the production of the whole belt core weaving 1. material selection skeleton material almost bear all the load of the conveyor belt work, so the core material is required to have high strength, good dimensional stability, flex resistance, firm joints, good grooving, good impact load resistance and other characteristics. Compared with polyester industrial filament, nylon industrial filament has high strength, low density, good impact resistance and wear resistance. Therefore, it is more appropriate to choose nylon industrial filament as the warp and weft stress line for high-strength integral belt core. The quality of the cover cotton seriously affects the joint life of the flame-retardant whole-core conveyor belt, so when designing the core structure, it is necessary to consider the amount of paste attached to the cotton yarn during impregnation,
Talking about the Production and Weaving of Integral Belt Core
1. material selection
The skeleton material almost bears the full load of the conveyor belt, so the core material is required to have high strength, good dimensional stability, flex resistance, firm joints, good grooving, and good impact load resistance. Compared with polyester industrial filament, nylon industrial filament has high strength, low density, good impact resistance and wear resistance. Therefore, it is more appropriate to choose nylon industrial filament as the warp and weft stress line for high-strength integral belt core.
The quality of the covering cotton seriously affects the joint life of the flame retardant whole-core conveyor belt. Therefore, when designing the core structure, it is necessary to consider not only the amount of paste attached to the cotton yarn during impregnation, but also the overall structure is not loose when the product is used. Better quality can be selected.
833dtex or 583dtex cotton yarn for cover cotton.
2. structure design
The key to the structural design of high-strength integral core is to control the density of warp and weft, the number of layers and the distribution of silk and cotton strands. Excessive density, too many layers, and too coarse allotment will affect the permeability of the impregnation paste, thereby affecting the physical properties of the product. The increase of the cotton content of the belt core can improve the adhesion performance between the covering rubber and the belt core, but the excessive cotton content is not only unfavorable to the impregnation of the belt core, but also reduces the safety performance of the conveyor belt and causes the cost to be too high. Therefore, when the belt core is designed, the cotton content is not less than the MT317--2002 requirement.
Preparation of 3. Integral Tape Cores
(1) Twisting. Place the silk and cotton on the twisting machine, twist and combine the yarn according to the set twist. Twist should not be too large, too much twist will lead to increased weaving shrinkage, paste is difficult to penetrate, affecting product safety;
force, affecting the performance of the product.
(2) wear buckle and weaving. The high-strength integral core weaving is carried out on a heavy-duty machine. First, place the twisted thread on the creel, wrap the silk or cotton on the tension roller respectively, and then pass the silk and cotton through the brown silk and steel buckle according to the along threading method (or according to the reverse threading method), namely
Can be woven. The preparation process to prevent the lack of silk, less cotton phenomenon, each silk, cotton tension to be consistent. If the tension is inconsistent at the edge, it will cause the product to tighten the edge, and the use and process are easy to deviate; other parts have different tension.
Caused, relaxation, will lead to uneven product stress dispersion, easy to use in the process of early damage.
Preparation of 3.2 Strip
(1) making paste. The paste was stirred on a low-speed mixer and ground by a three-roll mill. The paste temperature should be controlled below 40 ℃ to avoid the increase of paste viscosity due to the increase of temperature. The processing time is determined according to the actual situation, the time is too short, and the powder material is dispersed.
Uneven; If the time is too long, the initial viscosity of the paste is too large, which is not conducive to infiltration into the strands with core. Before grinding, the roller distance should be adjusted, and cooling water should be normally passed. The paste should be ground at least 2 times to ensure fineness and dispersion. The paste particle size should be controlled.
The system is below 45m.
(2) The high-strength flame-retardant whole-core conveyor belt has the characteristics of light belt, high strength, low elongation, tear resistance, anti-smashing, etc., which can meet the requirements of long-distance and large-capacity transportation, and has high transportation efficiency. It can also be transported with the existing steel wire rope core conveyor belt of the same type.
machine matching. In developed countries in Europe, as early as the late 1970 s, high-strength PVC and PVG flame-retardant whole-core conveyor belts have been widely used underground. In addition to a few domestic joint ventures, most enterprises are limited by equipment and raw materials.
In the development of high-strength flame retardant integral core is relatively lagging behind.
Shijiazhuang Textile Machinery Co., Ltd. according to market demand and existing tooling conditions, independent research and development of more than 1600S high-strength flame retardant integral core weaving equipment, and applied to high-strength flame retardant integral core conveyor belt raw
production. For example, Shandong huaqin group Contik rubber engineering co., ltd. currently has two new heavy-duty cored conveyor belt rapier looms with widths of 1.6 meters and 1.9 meters respectively. the cores produced have been highly recognized by customers.
Can.
Tag:
Next
Company Address:
No.9 Taibao Road, Xinhua District, Shijiazhuang City, Hebei Province, China
Domestic trade:86-0311-83817104
International trade:86-311-83817245
International trade:86-311-83817104
Zip Code: 050061
Mailbox:sales@sjzfzjx.com
Fast Track:
INVITATION OF ITMA ASIA+CITME 2024