Cold contraction accessory fast expansion equipment and technique

Abstract

The invention discloses cold contraction accessory fast expansion equipment and technique. The cold contraction accessory fast expansion equipment comprises a frame body, a workbench, supporting columns and a top plate. An operation control box, a lifting motor and a driving motor are arranged on the top plate. An expanded conical body, a rotary spindle and a positioning rod are arranged between the workbench and the top plate. A pull ring is fixed to the upper end of the expanded conical body. The pull ring is connected with the lifting motor through a pulling wire. A lifting clamp is arranged on the rotary spindle. The rotary spindle is connected with the driving motor. According to the cold contraction accessory fast expansion equipment adopting the structure and the cold contraction accessory fast expansion technique, the effect that an expansion roller type slow expansion conical head can be used unlimitedly is guaranteed, maintenance is convenient, the equipment can adapt to expansion of cold contraction accessories at different voltage levels, expanded elastic materials are free of expansion traces, expansion is uniform, the expansion friction coefficient is small, the power requirements of expanded workpieces are greatly reduced, the workload is reduced, the working efficiency is high, large-scale machining operation is facilitated, the expansion technique is simple, and technique improvement and automatic control are facilitated.

Description

technical field [0001] The invention relates to the technical field of cable accessories preparation, in particular to a rapid expansion device for cold-shrinkable accessories and an expansion process thereof. Background technique [0002] Cold-shrinkable cable accessories are molded by engineering injection vulcanization using elastic silicone rubber materials. After process expansion, a support member composed of nylon strip spirals is added inside to form a cold-shrinkable cable accessory. In the processing technology of power cable accessories, the currently used The cold shrink expansion process generally uses the method of conical reaming and strip bag to limit the expansion diameter to achieve expansion, or the expansion pliers are used to open the end of the cold shrinkable accessory and then set it on the sealing tube to inflate and expand. Although these manufacturing processes are relatively mature, and the operations have been widely used in the industry, their p...

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