Filter screen replacement equipment for film blowing machines

Abstract

The invention discloses filter screen replacement equipment for film blowing machines. The filter screen replacement equipment comprises a clamping mechanism, a lifting mechanism, a telescoping mechanism and a resetting mechanism. The clamping mechanism is arranged below the lifting mechanism. The telescoping mechanism is connected with the lifting mechanism. The resetting mechanism is connected with the telescoping mechanism. The clamping mechanism is used for clamping a filter screen in a plastic solution when the filter screen needs to be taken down. The lifting mechanism is used for controlling lifting of the clamping mechanism, so that when the filter screen needs to be taken out, the clamping mechanism can drop to a position, where the filter screen can be taken out, to clamp the filter screen. The telescoping mechanism is used for controlling forward and backward movement of the lifting mechanism, so that when the filter screen needs to be taken down, the telescoping mechanism controls the lifting mechanism to move towards the upper side of the filter screen. The resetting mechanism is used for retracting the clamping mechanism, the lifting mechanism and the telescoping mechanism, which has completed the filter screen replacement, to specific positions.

Description

technical field [0001] The invention belongs to the technical field of film blowing machines, and in particular relates to a filter screen replacement device for film blowing machines. Background technique [0002] Before the blown film is formed by the blown film machine, it needs to be filtered by a filter to remove impurities and particles in the plastic solution, so that the formed film has a beautiful appearance. Because the impurities in the solution will adhere to the filter screen, the filter screen needs to be replaced and cleaned after a period of use, otherwise the filter screen holes will be blocked and the solution will not be able to circulate normally. Not only does it need to stop the machine every time the filter is replaced, but it also takes at least 15 minutes to replace the filter, which affects production efficiency and brings economic losses to the manufacturer. [0003] There is an existing film blowing machine, which can detach the filter screen, bu...

AI Technical Summary

Problems solved by technology

Since the impurities in the solution will adhere to the filter, the filter needs to be replaced and cleaned after a period of use, otherwise the filter will be blocked and the solution will not be able to circulate normally

Every time the filter is replaced, it not only needs to stop the machine, but also needs at least 15 minutes to replace the filter, which affects the production efficiency and brings economic losses to the manufacturer.

[0003] There is a film blowing machine that can detach the filter screen, but it also needs to be replaced manually. Manual replacement of the filter screen is troublesome, the efficiency is very low, and the temperature of the plastic solution is very high. It's very unsafe

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