The invention discloses a convex point pressing roller device. A convex point pressing roller comprises a pressing roller body and convex points, wherein the pressing roller body is of a cylinder structure, the several convex points are provided, and are evenly distributed on the outer cylindrical surface of the pressing roller body along a
spiral line, the tops of all the convex points are located on the same cylindrical surface, the convex points are made through a steel and rubber
composite process, and each convex point is composed of a convex point working surface and a convex point connecting portion. The convex point pressing roller device is specially used on a belt blank forming line for a ultra-wide rubber conveying belt for belt blank forming; the convex point working surfaces are made of high-strength high-
hardness rubber, elastic contact is realized, and the
pressure balance effect can be ensured; through the convex points, the
local pressure can be concentrated and the adhesion can be enhanced, so that the local initial
viscosity effect is enhanced, and the later
vulcanization working procedure is facilitated; through the convex point structures additionally arrangedon the pressing roller, the stress can be dispersed, moreover, the accumulated
wrinkle tendency of a cloth layer can be dispersed, then
wrinkle caused by pressing is eradicated, the forming quality ofa belt blank is ensured to be stable and reliable, the product quality and the working efficiency are improved, and the rate of finished products is guaranteed.