Optical cable casing pipe forming processing device

Abstract

The invention relates to an optical cable casing pipe forming processing device including an optical fiber releasing frame, an extruder and casing pipe forming mold, a cooling water tank and a traction device. The optical cable casing pipe forming processing device is characterized in that an auxiliary traction device is arranged in the cooling water tank or between the cooling water tank and the traction device along the traction direction of an optical cable casing pipe; the auxiliary traction linear velocity of the auxiliary traction device is higher than the traction linear velocity of the traction device to draw the optical cable casing pipe. The optical cable casing pipe forming processing device has the beneficial effects: 1, residual length of the casing pipe is controlled by arrangement of the auxiliary traction device and is used for compensating the shrinkage amount of the casing pipe after cooling, relatively large after-shrinkage of common casing pipes in production is avoided, the production quality of the optical fiber casing pipe is ensured, the casing pipe production speed and follow-up process control are facilitated to be improved, and the production of complete-dry type casing pipes and PP casing pipes are facilitated; and 2, a longitudinal moving device can adjust the length of a casing pipe lengthened stretched section, and moves the casing pipe to an optimum traction position according to the detected temperature of the casing pipe, so as to ensure the traction effect and the processing quality of the casing pipe.

Description

technical field [0001] The invention relates to an optical cable casing forming and processing device capable of controlling the excess length of the casing, and belongs to the technical field of optical cable processing equipment. Background technique [0002] The optical fiber in the optical cable is usually wrapped in a (loose) tube by injection molding of the tube, and then the fiber-containing tube is combined with other cable parts and wrapped in the outer sheath to form an optical cable. The existing optical cable casing forming processing device mainly includes an optical fiber pay-off frame, an extruder, a casing forming die, a cooling water tank and a pulling device. Since the sleeve material has a large amount of shrinkage after cooling, it is necessary to leave an excess length of the sleeve in the processing and production of the sleeve, and the control of the excess length of the sleeve is very important to ensure product quality. At present, most of the sleev...

AI Technical Summary

Problems solved by technology

At present, most of the sleeve plastic production is by adjusting the water temperature to control the excess length. The process conditions are complex and greatly affected by the production speed. Moreover, the fully dry sleeve and PP sleeve with large shrinkage after production often cannot effectively control the excess length. has great limitations

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