Self-locking vacuum chamber for vacuum packaging machine

Abstract

The invention discloses a self-locking vacuum chamber for a vacuum packaging machine. The self-locking vacuum chamber for the vacuum packaging machine comprises a vacuum back seat, a vacuum front cover, an opening-closing arm and a self-locking mechanism, wherein the vacuum front cover and the vacuum back seat are fastened; the opening-closing arm is arranged on the top parts of the vacuum back seat and the vacuum front cover; the self-locking mechanism is fixedly connected to the side walls of the vacuum back seat and the vacuum front cover; a fixed seat is fixedly connected to the top part of the vacuum back seat and is rotatably connected with the opening-closing arm; rotary plates are fixedly connected to the back part of the vacuum back seat and are symmetrically distributed on two sides of the vacuum back seat; the rotary plates are rotatably connected with the vacuum back seat; connecting rods are arranged between the rotary plates and the self-locking mechanism; and the self-locking mechanism comprises a shell, a pull rod, a driving deflector rod, a cross rod, a driven deflector rod and a lock head. According to the self-locking vacuum chamber for the vacuum packaging machine provided by the invention, the self-locking mechanism is fixedly connected to the side wall of the vacuum chamber, so that the stability and the connecting strength of the connection between the bottom parts of the vacuum back seat and the vacuum front cover are improved, the overall sealing performance of the vacuum chamber is improved, and the qualification rate of product processing is improved.

Description

technical field [0001] The invention relates to the technical field of vacuum packaging devices, in particular to a self-locking vacuum chamber for a vacuum packaging machine. Background technique [0002] The vacuum packaging machine can automatically extract the air in the packaging bag, and complete the sealing process after reaching the predetermined vacuum degree. It can also be filled with nitrogen or other mixed gases, and then the sealing process is completed. Vacuum packaging machines are often used in the food industry, because after vacuum packaging, food can resist oxidation, so as to achieve the purpose of long-term preservation. [0003] At present, most of the vacuum packaging machines in the market use a separately controlled vacuum chamber to carry out vacuum processing on the product, and the vacuum chamber is mostly a combination of a vacuum back seat and a vacuum front cover, and the tightness of the cooperation between the vacuum back seat and the vacuu...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the vacuum packaging machines in the market use a separately controlled vacuum chamber to carry out vacuum processing on the product, and the vacuum chamber is mostly a combination of a vacuum back seat and a vacuum front cover, and the tightness of the cooperation between the vacuum back seat and the vacuum front cover directly affects the product seal. Due to the effect of processing, the existing vacuum chamber mostly uses a single robot arm to open and close, and the closing force of the lower part is relatively small, resulting in insufficient sealing of the vacuum back seat and the vacuum front cover, which may easily lead to air leakage in the vacuum chamber and reduce the qualified rate of finished products

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