Cold roll forming technology for escalator handrail bracket

Abstract

The invention discloses a cold roll forming technology for an escalator handrail bracket. The cold roll forming technology is operated according to the following steps: 26-28 roller beds are arranged in a stretching bending die, wherein each roller bed comprises bending die assemblies and straightening roller assemblies; the convex-concave degree of a roller sheet in each bending die assembly and a gap between two vertically arranged rolling heads are regulated to control a pressing bending deformation amount to a section bar by each roller bed to be 8-12 degrees; then, the section bar is caused to slowly enter the last roller bed from the first roller bed; each straightening roller assembly arranged between every two bending die assemblies is used for protecting the driving direction of the section bar. The section bar processed by the technology is free from surface damage, the product quality and the attractiveness degree of the formed section bar are improved, surface processing is omitted in a later stage, the working efficiency of escalator handrail bracket processing is integrally improved, and meanwhile, the cost is saved on the whole.

Description

technical field [0001] The invention relates to a processing and forming process of profiles, in particular to a cold-bending forming process for escalator handrail brackets. Background technique [0002] Nowadays, slim escalators can be seen everywhere in shopping malls of all sizes. Its advantages are simple structure, beautiful appearance, moderate price, and it is very practical for occasions with less traffic and light load. However, the handrail of the escalator that is in direct contact with us is supported by the handrail support system. For domestic and foreign mid-end customer groups, the armrest bracket market cannot be ignored, and the potential market value-added space is huge. [0003] Under the pressure of market competition, various competitors are involved, and the size requirements of products can generally be adjusted to meet customer requirements, but it is difficult to require fine workmanship at the same technical level. Because doing fine and fine wo...

AI Technical Summary

Problems solved by technology

[0004] In the traditional process of making escalator handrail brackets, the profiles are cold-drawn. The cold-drawing equipment used is equipped with 20 roller tables. Therefore, it is necessary for each roller table to deform the profile to 15°, and the profile is cold-drawn. During the process, the damaged parts are processed and the hair is polished. However, this traditional process often leads to obvious color differences between the damaged parts and the original hair lines, and the hairlines are broken. The effect of the hair affects the overall appearance. , the pass rate of the product is low

And the complicated follow-up operations will increase the manufacturing cost of the enterprise and reduce the production efficiency. From the perspective of the enterprise, on the basis of the traditional cold-drawing research, combined with the particularity of the product and the needs of customers, improve the cold-drawing process. Molding process is imperative