Special optical fiber guide mold for skeleton groove optical cable

Abstract

The invention discloses a special optical fiber guide mold for a skeleton groove optical cable. The mold comprises a mold main body, at least one skeleton limiting block and at least one optical fiberguide structure; a skeleton guide hole is formed in the mold main body; the optical fiber guide structure comprises a guide groove and an adjusting sliding block; the bottom of the guide groove inclines towards the center, and the front end of the bottom of the guide groove is connected with the framework guide hole; the adjusting sliding block is embedded in the guide groove in a matched mode and is detachably and fixedly connected with the mold main body along the guide groove in a position adjusting mode; an optical fiber guide hole cavity is formed between the adjusting sliding block andthe bottom of the guide groove; a skeleton limiting block is detachably and fixedly arranged on the rear end face of the mold main body in the mode that the position can be adjusted in the radial direction; a sharp limiting protruding block is arranged at the end, close to the skeleton guide hole, of the skeleton limiting block and matched with a skeleton groove, and a skeleton can be effectivelylimited against rotating displacement. With the guide mold adopted, an optical fiber can be stably guided into the skeleton groove of the small skeleton groove optical fiber; and the guide mold is worry-saving, labor-saving, stable and reliable.

Description

technical field [0001] The invention relates to an optical cable production equipment, in particular to an optical fiber embedding device for a skeleton groove optical cable. Background technique [0002] At present, the manufacture of skeleton optical cables generally adopts corresponding production methods for its structure. The skeleton grooves in traditional skeleton optical cables are set in a spiral manner, which leads to the need to place optical fibers in the skeleton grooves. The way of fiber stranding is to place the optical fiber in the skeleton groove, and set the pitch of the fiber stranding according to the rising angle of the skeleton groove spiral, so that the helical angle of the fiber stranding is consistent with the helix angle of the skeleton groove, so that the optical fiber matches and falls The skeleton is in the groove, and it is continuously twisted and produced in this way. For a small number of skeleton grooves distributed in a straight line in th...

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Problems solved by technology

However, this method is only more effective for axially linearly distributed skeleton grooves with large outer diameters and axially linearly distributed skeleton optical fibers with fiber ribbon structures, and is of little significance for axially linearly distributed small skeleton optical cables.

Due to the small outer diameter and high production speed of the first small skeleton groove during production, any force and equipment instability during the production process will cause the small skeleton groove distributed along the axial line to rotate back and forth irregularly along the axis, resulting in optical fiber It will jump out of the skeleton groove, which will cause a change in the relative position of the skeleton groove and the optical fiber, making it impossible to continue production. It needs to be stopped and rearranged, and the cycle will greatly affect the production efficiency.

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