Mechanism for tensioning workpiece through electric screw tensioning shaft, regulation and control method and application

Abstract

The invention belongs to the technical field of tensioning of workpieces through electric screw tensioning shafts in high-speed rotating machines, and discloses a mechanism for tensioning the workpieces through the electric screw tensioning shafts, a regulation and control method and application. And the cone nut pushes the tensioning claws in the inclined plane guide groove to stretch out and retract along the peripheral surface to realize tensioning or loosening in the front-back movement process. According to the mechanism for tensioning the workpiece through the electric screw tensioning shaft on the high-speed rotating mechanism, due to the fact that a screw nut kinematic pair has the self-locking capacity and is large in pushing force, rapid tensioning of the workpiece is guaranteed, and tensioning is reliable. The mechanism for tensioning the workpiece through the electric screw tensioning shaft adopts a motor to drive a screw nut kinematic pair to adjust the tensioning force, and the tensioning force can be known and controllable. The defects existing in the using process of the expansion shaft, the using process of a manual mechanical expansion shaft and the using process of an electric drive expansion shaft are overcome.

Description

technical field [0001] The invention belongs to the technical field of tensioning workpieces with electric screw tensioning shafts in high-speed rotating machines, and in particular relates to a mechanism, control method and application for tightening workpieces with electric screw tensioning shafts. Background technique [0002] At present, in the technical fields of printing equipment and rewinding equipment in the tobacco industry, especially in laser punching equipment for tipping paper, it is necessary to fix the paper core on the tensioning shaft of the rotating mechanism, and fix and position the tipping shaft through the tensioning shaft. The core of the paper, and then the winding and unwinding reel rotates to complete various work requirements. [0003] In the prior art, there are three ways to tighten the tensioner shaft: [0004] 1. Pneumatic tensioner shaft (also known as pneumatic tensioner shaft): [0005] The pneumatic expansion shaft is an inflatable expan...

AI Technical Summary

Problems solved by technology

[0011] The expansion shaft has the following disadvantages in the process of use: (1) The inflated air bag will remove the air source after the expansion block is tightened, and cannot continue to ventilate and tighten, and the pressure of the air pump is limited, and the tension force is not large

(2) The reliability is not high: the mechanism requires high sealing performance. Once the air leaks, the workpiece will lose its tension during work, and the product will be scrapped or even an accident will occur.

[0012] The manual mechanical tensioner has the following disadvantages in the process of use: (1) Inconvenient to use: when replacing the reel core, it is necessary to manually loosen the thread, resulting in high labor intensity

(2) The tensioning of the manual mechanical tensioning shaft does not meet the requirements for equipment automation upgrades

[0016] The significance of solving the above problems and defects is: in view of the defects in the prior art, the purpose of this application is to provide a mechanism and method for tightening workpieces with electric screw tensioning shafts on high-speed rotating mechanisms, so as to solve the problems in the related art. The problems of poor tensioning effect, high labor intensity and low efficiency, while the tensioning force is controllable

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