Plastic film pre-feeding device for flat-plate aluminum plastic blister packaging machine

Abstract

The invention discloses a plastic film pre-feeding device for a flat-plate aluminum plastic blister package machine, which is arranged between a plastic film emptying roller and a heating plate for blister shaping. The plastic film pre-feeding device is characterized by comprising a pair of feed rollers which are arranged in a parallel manner and close with each other, wherein, a main feed roller is driven by a motor; an inductive probe is arranged on a plastic film delivery pathway between the feeder rollers and the heating plate for blisters shaping; and the inductive probe is electrically connected with the motor. The plastic film pre-feeding device can prevent the plastic films to be excessively stretched before blister shaping, thereby ensuring the quality of aluminum plastic blister package.

Description

【Technical field】 [0001] The invention relates to a medicine packaging machine, in particular to a plastic film pre-feeding device of a flat-plate aluminum-plastic blister packaging machine. 【Background technique】 [0002] Flat-type aluminum-plastic blister packaging machine is a kind of pharmaceutical packaging machine, which is suitable for various medicines such as tablets, capsules and injections in the pharmaceutical industry and candy, cakes, milk tablets, medical equipment and electronic components in the food industry. Automatic packaging, the machine can simultaneously have the functions of coil conveying, blister forming, medicine filling, aluminum-plastic heat sealing, batch number printing, texture indentation, plate punching, display counting and other functions. The quality of blister packaging depends to a large extent on the uniformity of the blister wall thickness, and the uniformity of the blister wall thickness largely depends on the pre-feeding method of ...

AI Technical Summary

Problems solved by technology

In the existing flat-plate aluminum-plastic blister packaging machine, the pre-feeding of the plastic film before the blister forming is generally realized by swinging the swing roller back and forth. The swing of the swing roller will generate a large tension on the plastic film. The plastic film covering the forming heating plate will be heated and softened, so that the softened plastic film is easy to be stretched excessively under the action of high tension, and the two sides of the plastic film will shrink and narrow. It will produce a certain degree of change, and finally directly affect the uniformity of the blister wall thickness after molding, and finally affect the quality of the blister packaging, causing adverse effects on the packaging.

Images