A High-speed Vacuumizing, Filling and Protecting Gas-Sealing Can Production Line

Abstract

The invention relates to the technical field of food packaging, in particular to a high-speed vacuum filling and sealing can production line. It includes a high-speed pre-sealing machine connected by a conveyor chain, a high-speed vacuum filling and protective gas device, and a high-speed solid sealing machine. The high-speed pre-sealing machine has a seaming frame, an active rotation mechanism, a pressure wheel transmission mechanism, a lifting mechanism, a can feeding mechanism, a can lid feeding driving mechanism, a lower lid mechanism, a lid dropping mechanism, a can lifting mechanism, and a pressure head. Mechanism, out-of-tank mechanism, driving mechanism. The invention has the advantages of compact structure, small occupied area, high sealing and vacuuming efficiency, and adapts to the requirements of modern high-speed production. The pre-sealing machine and the solid-sealing machine only need one motor to drive the active rotating mechanism to drive the whole device to run together. The invention can adapt to various tank heights. To adjust the height, the vertical movement of the pressure head part and the pressure wheel rotating part can be completed through the forward and reverse rotation of the lifting motor, so as to adjust the distance between the can lifting platform and the pressure head and pressure wheel. Minimize manual adjustments.

Description

technical field [0001] The invention relates to the technical field of food packaging, in particular to a high-speed vacuum filling and sealing can production line. Background technique [0002] In terms of food packaging, people are particularly concerned about the freshness of food. For food packaging, there must be a process of vacuuming and filling protective gas and packaging technology, so as to reduce the amount of residual oxygen and the shelf life of products. [0003] The existing vacuum-pumping, nitrogen-filling and sealing machines have limited canning capacity, low work efficiency, and easy to fly powder, which can no longer meet the requirements of high-speed production lines; [0004] The existing equipment for vacuuming and filling protective gas adopts a box body, arranges cans that have been pre-sealed in an orderly manner in the box body, concentrates vacuuming and filling the protective gas, and then flows into a simple sealing process. There will be a w...

AI Technical Summary

Problems solved by technology

[0005] In 2011, China's utility model patent 201120033012.6 disclosed a fully automatic non-intermittent vacuuming and nitrogen filling production line for sealing tanks: 1. The vacuum nitrogen filling device needs to use two large turntables on the upper and lower coaxial axes to pump and nitrogen, The device only has 8-16 through holes, and needs to be equipped with two chambers, a vacuum chamber and a nitrogen chamber, and the structure is complex; 2. The two chambers of the device are under the turntable, which greatly increases the powder accumulation. risk, which is not conducive to the convenience and convenience of usual maintenance; and the cavity is designed under the turntable, which requires a large force to press it tightly to ensure the seal; 3. The sealing cylinder of the device moves up and down along the shaft of the supporting tank, and the sealing cylinder and the shaft of the supporting tank The sealing ring is sealed between them, and the up and down movement of the sealing cylinder reduces the service life of the sealing ring; 4. There are strip windows on the side walls of the vacuum chamber and the nitrogen filling chamber of the device, which means that the chamber must be turned to a specific position. The specific angle area can complete specific vacuuming or nitrogen filling action, low flexibility

[0006] Existing vacuuming, nitrogen filling and sealing devices have high residual oxygen content, the tank body has the risk of being filled with air again, the device is prone to powder accumulation, the negative pressure rate cannot be adjusted, the amount of powder leakage is high, and the loss is high

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