Sand scattering device for waterproof coiled material production

Abstract

The invention discloses a sand scattering device for waterproof coiled material production. The device comprises a machine frame, a feeding roller, a front edge film laminating mechanism, a front sandscattering mechanism, a rear edge film laminating mechanism and a rear sand scattering mechanism. The front edge film laminating mechanism is used for laying a face film edge film on a face film of an oil coated cloth before sand scattering, the front sand scattering mechanism is used for carrying out sand scattering treatment on the face film before contact of a coating cloth and the feeding roller, the rear edge film laminating mechanism is used for laying a bottom film edge film before sand scattering for the bottom film of the oil coated cloth, and the rear sand scattering mechanism is used for carrying out sand scattering treatment on the bottom face of the coating cloth. Compared with the prior art, the sand scattering device has the beneficial effects that edge film laying treatment can be carried out on the oil coated cloth according to practical conditions, single-face edge film laying and both-face edge film laying can be both realized, and production adaptability is good.

Description

technical field [0001] The invention relates to the technical field of production and processing of waterproof coiled materials, and more specifically, to a sand spreading device for production of waterproof coiled materials. Background technique [0002] Waterproof membranes are mainly used in roofing and underground waterproofing projects of industrial and civil buildings, tunnels, railways, bridges and other public works to prevent external water from penetrating into buildings or eroding building structures. Usually, modified asphalt waterproof membranes, synthetic polymer waterproof membranes or coatings are commonly used. [0003] The waterproof membrane used on the roof should be bonded with a layer of fine sand on its surface as a weather-resistant protective layer. The polymer self-adhesive film waterproof membrane also needs to be covered with a layer of fine sand on the surface during production. In actual use Play the role of isolation and protection. Regarding...

AI Technical Summary

Problems solved by technology

[0005] At present, there are two problems with the sanding device used in the production of waterproof membranes: on the one hand, it can only produce waterproof membranes with single-sided edge coverings, and there is no device for the production of double-sided edge coatings that meets the new standards; The automation and integration of the sand process is not high, and more manual participation is required, and the excess sand material has not been recycled, which wastes raw materials and is not conducive to environmental cleanliness

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