S-shaped elastic pendulum mechanism

Abstract

The invention relates to an S-shaped rubber-band swinging mechanism which arranges rubber bands in an S shape, and the S-shaped rubber-band swinging mechanism mainly comprises two hanging rods vertically separated from each other or approached to each other. The movement of each hanging rod is controlled by a set of rotating disc mechanisms, and each rotating disc mechanism comprises a rotating disc and a guide block. A guide rail, of which the side view is in a stepped or inclined-line shape or the top view is in a circle shaped, is arranged on the outer periphery of the rotating disc, and the guide blocks are limited to vertical displacement. The guide blocks are in sliding contact with the guide rail, the guide blocks under the effect of the guide rails carries out vertical circulation movement with the rotation of the rotating discs, and the hanging rods vertically move or swing with the vertical movement of the guide blocks. The guide rails with a stepped or inclined-linear longitudinal profile on the rotating disc drive the guide block to move vertically, and the hanging rods move or swing vertically with the vertical movement of the guide blocks. The S-shaped rubber-band swinging mechanism is simple in structure, and only requires a common unidirectional motor or other power to drive two rotating shafts to rotate unidirectionally. The S-shaped rubber-band swinging mechanism saves cost, and lowers production power consumption.

Description

technical field [0001] The invention relates to production equipment for household paper and sanitary products, in particular to an S-shaped elastic pendulum mechanism capable of making elastic arrangements in an S-shape. Background technique [0002] In order to improve the quality of diapers and sanitary napkins and avoid elastic breakage, the elastics around the diapers must be arranged in an S-shape. Chinese patent (publication number CN102038580A, publication date 2011.05.04) discloses a device for applying S elastic bands to the legs of adult diapers, including a bracket, a servo motor is provided on the left side of the bracket, and a sprocket is provided on the right side of the bracket. The servo motor and A transmission chain is installed between the sprockets; guide rails are arranged on the upper and lower support plates of the bracket, and left and right guide rods are arranged on the guide rails. In this device, it is first required that the servo motor must b...

AI Technical Summary

Problems solved by technology

In this device, it is first required that the servo motor must be able to achieve positive and negative rotation, but the price of this type of motor will be higher than that of ordinary motors. Increased production energy consumption; secondly, the length of the bracket and transmission chain is required to be long enough to adapt to the production of large-sized diapers, which increases the volume of the device and takes up a lot of space

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