Guide sleeve used for positioning and fixing

Abstract

The invention relates to a guide sleeve used for positioning and fixing. The guide sleeve which is a is an oil nylon cuboid with a semicircular groove is installed at the front end of an expansion mechanism; a groove is formed in the middle of the semicircular groove; the semicircular groove of the guide sleeve and a semicircular groove at the circumference of a star wheel of a pressure cover form a concentric cylindrical hole. The guide sleeve used for positioning and fixing has the beneficial effects of being high in recurrence precision and good in operability, overcoming quality problem of an aerial fog tank, ensuring coaxial positioning of the tank cover and an aerial fog agent tank, and therefore ensuring reliability and stability of the pressure cover.

Description

technical field [0001] The invention relates to a positioning device for the gland of an aerosol can, in particular to a guide sleeve for positioning and fixing. Background technique [0002] At present, capping machines at home and abroad often use an indexing mechanism with gap movement to drive the rotation of the star wheel shaft. Two sets of star wheels are fixed on the star wheel shaft. The lower star wheel set drives the aerosol can to rotate and feed, and the upper star wheel set drives the can. The cap is rotated and fed, and the capping action is performed at a certain station, so there are the following problems: 1. Due to the offset between the mouth of the aerosol can and the center of the bottom of the can, there is a coaxial deviation between the can lid and the aerosol can. 2. The connection between the upper star wheel set and the star wheel shaft adopts key gap fit (to adapt to different tank heights and needs to move up and down), and is locked with bolts....

AI Technical Summary

Problems solved by technology

[0002] At present, capping machines at home and abroad often use an indexing mechanism with gap movement to drive the rotation of the star wheel shaft. Two sets of star wheels are fixed on the star wheel shaft. The lower star wheel set drives the aerosol can to rotate and feed, and the upper star wheel set drives the can. The cap is rotated and fed, and the capping action is performed at a certain station, so there are the following problems: 1. Due to the offset between the mouth of the aerosol can and the center of the bottom of the can, there is a coaxial deviation between the can lid and the aerosol can

2. The connection between the upper star wheel set and the star wheel shaft adopts key gap fit (to adapt to different tank heights and needs to move up and down), and is locked with bolts. It is difficult to coincide with the center and the axis and will shift during the locking process

3. Due to the light weight of the can lid, the shape of the can lid has a certain taper, and the capping stroke is long, there is a phenomenon that the can lid will drift during the capping process

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