An ultra-high-speed secondary plastic production equipment and process for air-blown micro-cable micro-casing

Abstract

The invention discloses ultra high-speed secondary plastic shield prebalelling production equipment and an ultra high-speed secondary plastic shield prebalelling production process for an air-blown micro-cable and an air-blown micro-bushing. The equipment comprises an optical fiber pay-off rack, an extruding machine, a fiber paste system, a cooling water tank, a cooling gas tank, a take-up dance wheel and a take-up stand. An optical fiber is led out from the optical fiber pay-off rack and is extruded by the extruding machine to form a bushing which enters the cooling water tank and the coolinggas tank successively and then enters the take-up dance wheel to be fed to a take-up reel on the take-up rack to be taken up. The production line omits a redundant design of a bushing path of a conventional production line, single wheel or double wheel traction of a conventional secondary plastic shield prebalelling production line is removed, and only a take-up system is adopted as a traction system, so that the path of the bushing is simplified. The condition that the optical fiber bears force vertical to the optical fiber or an optical fiber bundle in the path is avoided, and the probability of in-tube broken fibers or an attenuated step is reduced, so that the production quality of the optical fiber is guaranteed. Meanwhile, the length of the whole line can be decreased greatly, so that the mounting space is saved.

Description

technical field [0001] The invention relates to the technical field of communication cables, in particular to an ultra-high-speed secondary plastic production equipment and process for air-blown micro-cable micro-sleeves. Background technique [0002] The air-blown microcable has the characteristics of small size and light weight, which can save material and transportation costs. At the same time, the air-blown laying method of air-blown micro-cables can greatly improve efficiency and save labor costs. In today's increasingly tight pipeline resources, air-blown micro-cables are becoming more and more popular. The key to the manufacture of air-blown microcables lies in the micro-sleeve manufacturing process. The current production speed of micro-sleeves is relatively low, about 150-250m / min. It is very necessary to increase the production speed of micro-sleeves. At present, the commonly used secondary plastic production line is to use single-wheel with fork-type traction or...

AI Technical Summary

Problems solved by technology

Due to the thin wall thickness of the micro-sleeve, the protection of the optical fiber is limited. These stresses are applied to the optical fiber, which will cause problems such as fiber breakage, steps, and attenuation exceeding the standard in the tube.

At the same time, the water-cooling method of the traditional secondary plastic production line, as the speed of the casing relative to the cooling water increases, its relative friction will increase exponentially, which is not conducive to the control of excess length and post-shrinkage

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