Commonly used classification methods are classified according to packaging processes, which can be divided into main packaging machinery and auxiliary packaging machinery. The packaging machinery that completes the packaging processes such as wrapping, filling and filling is called the main packaging machinery, or the packaging host; The packaging machinery that completes washing, drying, testing, stamping, measuring, conveying and stacking is called auxiliary packaging machinery.

(1) Packaging machinery

Wrapping and packaging machinery is used to package bulk products, which can be divided into kink packaging machine, end folding packaging machine, pillow packaging machine, envelope packaging machine and stretch packaging machine according to different wrapping processes.

(2) Filling and packaging machinery

Filling and packaging machinery is used to package powdery and granular solid articles. Filling and packaging machinery includes direct filling and packaging machines and bag-making and packaging machines. The direct filling packaging machine uses preformed paper bags or plastic bags for filling, and can also be directly filled into other containers. Bag-making, filling and packaging machine is a packaging machine that not only completes the forming of the belt container, but also completes the two processes of filling the product into the container.

(3) Filling and packaging machinery

Filling and packaging machinery is used to package fluid and semi-fluid articles. According to the process of filling products, it can be divided into atmospheric filling machine, vacuum filling machine and pressurized filling machine. Filling and packaging machinery is usually connected with sealing machine and labeling machine to form a mechanized filling assembly line.

(4) sealing machinery

Sealing machine is suitable for sealing all kinds of packaging containers. According to different sealing processes, it can be divided into glass jar capping machinery (capping, capping, etc.), bag mouth sewing machinery, box sealing machinery, plastic bags and paper bags sealing machinery.

(5) Labeling machinery

Labeling machine is used to paste trademark paper or labels on packages.

(6) Binding machinery

Banding machines include banded strapping machines, tying machines with thread or rope strapping material, etc.

(seven) cooked packaging machinery

Cooked packaging machinery is divided into blister packaging machine and body-fitted packaging machine according to different processing technologies.

(8) Vacuum packaging machinery

Vacuum packaging machinery can be divided into vacuum packaging machine and inflatable packaging machine according to whether it can be filled with inert gas after vacuumizing.

(9) Shrinkage packaging machinery

Shrink packaging machinery includes not only small shrink packaging machines that can be used for sales packaging of single products or multiple products, but also large shrink packaging machines that can be used for transportation packaging including pallet packaging.

(10) Other packaging machinery

In addition to the above types of packaging machinery, there are bottle washing and drying machines, testing machines for packaging materials and specifications, stamping machines, metering machines, etc. These stand-alone machines are generally combined with other packaging machines to form a packaging unit.

Common packaging machinery:

(1) Bag making, filling and sealing packaging machine

The main working procedures of bag-making, filling, sealing and packaging machine are packaging bag forming, filling, sealing and cutting. The packaging materials used are mainly film products, such as plastic film, paper, lead foil and composite film.

(2) Thermoforming packaging machinery

Thermoforming packaging machinery is divided into blister packaging machine and body-fitted packaging machine according to the different packaging container forming processes. Blister packaging is the most widely used packaging at present. It is a packaging method to seal the product between the preformed blister and the bottom plate. Body-fitted packaging is similar to blister packaging, and the difference between them is that the body-fitted packaging products are used as molding dies, and blister packaging is molded by special dies. Body-fitted packaging can make the product fixed, so that the quality of the product can not be damaged by collision in the circulation process.

Shrinking packaging machinery is a packaging machinery that wraps articles (or inner packages) with stretched and oriented heat-shrinkable film, and then appropriately heats the film to shrink the film and tightly wrap the articles (or inner packages). The shrink film is tensioned by the upper and lower reels, and the products are pushed to the film by machine parts. After the film wraps the products, the sealing parts seal the three sides of the film, and then the film is transported by a conveyor belt, and the products are forbidden to be wrapped by a heating device and cooled to form a shrink package.