Single flip-top opening device for a sealed package of pourable food products

Abstract

The invention provides a single flip type opening device capable of filling food for a sealed package. The single flip type opening device comprises a cover and a seat, wherein the cover and the seat are connected by virtue of a hinged piece, the seat is arranged at a prefabricated hole of the package, and a sealing material covers the prefabricated hole; the front ends and the middle parts of the cover and the seat are engaged and connected in a sealing mode, and a pressing piece which can penetrate through the prefabricated hole and drive the sealing material at the prefabricated hole to rotate and fold so as to be locked at the bottom of the seat during downward pressing is arranged in the middle of the seat. When the front end of the pressing piece is pressed, point connection can be broken, a bridge is disconnected, a sawtooth cutter on the lower part of the front end of the pressing piece penetrates through the prefabricated hole and continues to rotate, and the sealing material at the prefabricated hole is cut by cutters on both side surfaces; the cut sealing material is folded along with the rotation of the pressing piece, and the opening operation is completed until the pressing piece is locked by a boss; and when the closing operation is performed, only the cover needs to be pressed into the seat, so that sealing matching is formed. The single flip type opening device of a single thin plate overall structure has the advantages of simple structure and low manufacturing cost and has the functions of leakage prevention and pollution prevention, and the hygiene grade of food protection is increased.

Description

technical field [0001] The invention relates to a single clamshell type opening device for a sealed package that can be poured into food, and belongs to the technical field of food packaging. Background technique [0002] It is well known that many pourable food products, such as fruit juices, UHT milk, wine, tomato paste, etc., are sold in packages made of sterilized packaging material, which are produced on fully automatic packaging machines of. The packaging material may, for example, be delivered in rolls and folded and sealed longitudinally so that a continuous vertical tube may be formed. The tube is then filled with sterilized or aseptically processed food, while it is sealed and cut along equidistant cross-sections to form pillow packs, which are then mechanically folded to form the final pack, A typical example is a parallelepiped shaped box, not forming a continuous tube, this packaging material can be cut into grids, these grids are shaped in a filling molding m...

AI Technical Summary

Problems solved by technology

Once opened, this kind of packaging cannot be closed. At the same time, the outer surface of this flat cover has no dust protection. Obviously, it is very easy to contact with external substances, and the possibility of re-contamination is high, which reduces the safety of food.

In addition, this flip opening device is assembled from two separate parts, a base and a lever knife, which must be made using two different production molds, thus resulting in higher costs

Images