Wide-width whole-core fire-retardant conveyor belt rubber double-sided double-coat-hanger runner coating mould

Abstract

The invention discloses a wide-width whole-core fire-retardant conveyor belt rubber double-sided double-coat-hanger runner coating mould. The mould is composed of two sets of symmetrically-arranged extruder mould units. Each mould unit comprises an upper mould block, a lower mould block, side fenders, thickness mould strips and the like. The coating mould is characterized in that the upper mould blocks and the lower mould blocks are connected through mould block bolts, the side fenders are mounted on the two sides, double-coat-hanger molding cavities are formed in the middles, and two feed inlets are formed; flow choking bars, flow choking bar regulating mechanisms, lips and lip regulating mechanisms are arranged on the upper mould blocks correspondingly; the upper mould block, the lower mould block and the side fenders are provided with hot oil circulation temperature control runners correspondingly; the thickness mould strips are mounted on the two sides of the lips of the mould; andthe two sets of mould units are connected through mould connecting bolts. According to the coating mould, by means of the technical means including the double feed inlets, the double-coat-hanger runners, the adjustable flow choking bars, the adjustable lips and the like, the sufficient rubber extruding amount and the excellent uniform pressure condition are guaranteed, wide-width whole-core fire-retardant conveyor belt rubber with the width being 2000-3600mm can be fast extruded, diluted, pressed uniformly and coated, and the variety range and application range of PVC / PVG whole-core fire-retardant conveyor belts are expanded.

Description

technical field [0001] The invention relates to a conveyor belt production equipment, more specifically to a wide-width whole-core flame-retardant conveyor belt surface glue double-sided double hanger runner coating mold. Background technique [0002] PVC / PVG integral flame retardant conveyor belt is widely used in coal mines, docks and steel companies because of its excellent flame retardant and antistatic properties. However, due to the limitations of the overall belt core strength, belt body grooving, climbing angle and other factors, the level of the whole core flame-retardant conveyor belt is relatively low, and the width is narrow, which cannot meet the current needs of large coal mines, wharves, Due to the requirements of large angle and large production volume, in some occasions with a width of more than 1800mm, it is still necessary to use a large number of steel cord rubber conveyor belts to transport materials, which increases operating costs, wastes a lot of rubb...

AI Technical Summary

Problems solved by technology

At present, domestic PVC / PVG whole-core flame-retardant conveyor belts are generally produced by the squeezing and rubbing process. The important process equipment - the surface rubber coating mold cavity adopts a single hanger type flow channel, which meets the requirements of existing products to a certain extent. Production requirements, but can not meet the new requirements of large capacity, large width, and large level put forward by the development of the material transportation industry for conveyor belts

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