Yarn barrel locking device for aramid yarn of optical cable

Abstract

The invention discloses a yarn barrel locking device for aramid yarn of an optical cable and relates to the field of nonmetallic reinforcing pieces of communication optical cables. The yarn barrel locking device for the aramid yarn of the optical cable comprises a column-shaped cam seat, the front end hollows towards the inside to form a hollow cavity, a hollow shaft is axially arranged in the hollow cavity, and a first cam and a second cam sleeve the hollow shaft; a rotating shaft is co-axially arranged in the hollow shaft, and the end thereof runs through the rear end of the cam seat and is fixed with a handle wheel; at least one pair of through holes corresponding to the two cams are arranged in the side wall of the cam seat, a column body is through arranged in each pair of through holes, the end of the column body running through the cam seat is a pointed end, the end located in the hollow cavity is a ball head end, and a spring sleeves the part of each column body in the hollow cavity; each cam is provided with cam pieces, wherein the number of the cam pieces is larger than the pair number of the through holes, when two cams rotate, the column bodies corresponding to the cams telescopically move in the through holes along with the rotation of the cam pieces. The yarn barrel locking device for the aramid yarn of the optical cable prevents the yarn barrel generating axial and radial jump in the production process, the optical cable bending, yarn break and cable break due to the yarn barrel loosening are avoided, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of non-metallic reinforcements for communication optical cables, in particular to a yarn bobbin locking device for aramid yarns in optical cables. Background technique [0002] In the production of communication optical cables, in order to prevent the axial and radial movement of the aramid yarn bobbin of the non-metallic reinforcement, and to facilitate the continuous and stable yarn tension, a locking device for the aramid bobbin bobbin of the optical cable is added. [0003] At present, most of the domestic skein cage equipment adopts the elastic force of the spring to lock the bobbin. The principle is that the three springs are evenly distributed and fixed on the bobbin mounting seat, and the spring is compressed through the inner hole of the bobbin to produce elastic force to lock the bobbin. Since the yarn bobbin is made of paper, the processing error of the inner diameter is relatively large, and the locking fo...

AI Technical Summary

Problems solved by technology

Since the yarn bobbin is made of paper, the processing error of the inner diameter is relatively large, and the locking force of the compression spring is inconsistent, resulting in the phenomenon that the yarn bobbin installation will be uneven.

During the production process, the centrifugal force generated by the rotation of the skein cage will cause the yarn bobbin to shift position, resulting in uneven tension of multiple aramid yarns, bending of the optical cable, and serious phenomenon of yarn bobbin throwing out, yarn breakage and cable breakage.

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