Packaging machinery has a variety of classification methods. According to the function can be divided into single-function packaging machine and multi-function packaging machine; according to the purpose of use can be divided into inner packaging machine and outer packaging machine; according to the packaging varieties can be divided into special packaging machine and general packaging machine; according to the level of automation is divided into semi-automatic machine and fully automatic machine and so on. Table for the classification of packaging machinery.
There are many kinds of packaging machinery, many classification methods. From a different point of view can be a variety of, according to the product state, there are liquid, block, bulk granules, paste, paste, electronic combination scale packaging, pillow packaging machine; according to the role of packaging points, there are inner packaging, outsourcing packaging machine; according to the packaging industry, there are food, daily-use chemical industry, textiles and other packaging machines; according to the packaging station points, there is a single-station, multi-station packaging machine; according to the degree of automation, semi-automatic, full-automatic Packaging machine, and so on.
There are many ways to categorize packaging machinery, a variety of classification methods have their own characteristics and scope of application, but have their limitations. From the point of view of the international packaging machinery in general, the more scientific classification method is to classify its main function, it can capture the essence of things. Its basic classification is as follows:
(1) Filling machine
Filling machine is the precise number of packaged goods into a variety of containers within the packaging machine. Its main types are: ① volumetric filling machine. Including measuring cup type, tube type, plunger type, material level type, screw type, timing type filling machine.
② weighing filling machine. Including intermittent weighing, continuous weighing, weighing - centrifugal centrifugal filling machine.
3 counting filling machine. Including single-piece counting type, multi-piece counting type filling machine.
(2) sealing machine
Sealing machine is filled with packaging containers for sealing machinery, the main types are: ① no sealing material sealing machine. Including hot-pressing type, cold-pressing type, welding type, insertion type, folding type sealing machine.
② sealing material sealing machine. Including spinning type, rolling type, crimping type, press type sealing machine.
3 auxiliary sealing material sealing machine. Including tape type, bonding type, pinning type, ligature type, sewing type sealing machine.
(3) wrapping machine
Wrapping machine is a flexible packaging materials, all or part of the package wrapped up packaging machine. Its main types are:
①Whole wrapping type wrapping machine. Including twisting type, covering type, sticking type, seam type and other wrapping machines.
② half-wrapped wrapping machine. Including folding, shrinkage, stretching, winding and other wrapping machine.
(4) multi-functional packaging machine
These packaging machines have two or more functions. Its main types are: ① filling and sealing machine. It has two functions of filling and sealing.
② molding filling and sealing machine. It has a molding, filling, sealing three functions. The types of molding are bag molding, bottle molding, box molding, blister molding, melt molding and so on.
③Shaping filling and sealing machine. It has the function of molding, filling and sealing. Shaping mode
④Double-sided sealing machine. It can seal the top cover and the bottom at the same time. When sealing the box, the box can be placed sideways or upright.
(3)Classification according to the position and number of tape sealing
①I type sealing machine. It is in the case of the top cover and the bottom of the outer folds of the seams with a tape sealing. This kind of sealing, operation is simple, but the sealing is poor.
② H-type sealing machine. It is based on the I-type sealing, that is, in the I-type sealing tape at both ends of the sealing of two tapes, shaped like H, so called H-type. It can increase the box strength and sealing performance, but the cost is higher.
(4)Classification according to the degree of specialization
①Universal sealing machine. It can adjust certain institutions to change the size of the sealing machine to adapt to a variety of sizes and specifications of the box sealing, it adapts to a wider range, is a commonly used sealing machine.
②Specialized sealing machine. It can only seal a specific size of the box, sealing speed, suitable for high-volume sealing operations. ③ Random type sealing machine. It is within the specified size range, the relevant agencies can automatically change to adapt to the different sizes of boxes sealing needs, is a high degree of automation sealing machine. According to the filling principle filling machine is divided into normal pressure filling machine, pressure filling machine and vacuum filling machine.
① atmospheric pressure filling machine: it is filled under atmospheric pressure by liquid weight. This type of filling machine is divided into two kinds of timing filling and fixed capacity filling, only for filling low-viscosity liquids that do not contain gas, such as milk, wine and so on.
② pressure filling machine: it is higher than the atmospheric pressure filling, can be divided into two kinds: one is the pressure in the reservoir cylinder and the bottle pressure is equal to the weight of the liquid flowing into the bottle and filling, known as equal-pressure filling; the other is the pressure in the reservoir cylinder is higher than the pressure of the bottle, the liquid flows into the bottle by the pressure difference, high-speed production line is used in this way. Pressure filling machine is suitable for gas-containing liquid filling, such as beer, soft drinks, champagne and so on.
③ Vacuum filling machine: the pressure in the bottle is lower than the atmospheric pressure for filling. This filling machine has a simple structure, high efficiency, the viscosity of the material to adapt to a wide range, such as oils, syrups, fruit wines, etc. can be applied. It is a semi-automatic multi-functional packaging machine integrating vacuum extraction, nitrogen filling and heat sealing, and the working procedure is automatically controlled by PLC programming system, which can adjust the time of each working session individually according to different packaging materials and volume, and can also be used individually in one of the individual sessions. The whole machine consists of oil and water removal air filtration system, air separation and nitrogen making system, vacuum system, air storage and supply system, heat sealing system, PLC programmed control system, elevated workshop and frame and casing. This machine can be used with other equipment and production machines. Vacuum nitrogen filling packaging puts food into the bag, extracts the air inside the bag to reach the predetermined vacuum degree, then fills it with nitrogen, carbon dioxide, oxygen and other gases, and then completes the sealing process.
Applicable to all kinds of plastic composite film and plastic aluminum foil composite film packaging, liquid, semi-fluid, solid granular, powdery, pasty food, fresh fruits, vegetables, rice, flowers, chemicals, precious herbs, valuable paintings, electronic devices and a variety of moth-proof, anticorrosive, moisture-proof, mildew, oxidation-proof goods vacuum packaging or vacuum nitrogen-filled packaging, so as to extend the shelf life of the goods. 1, the appearance is beautiful, generous, can be filled with nitrogen, carbon dioxide, oxygen, and other gases, and then complete the sealing process. The shape is beautiful and generous, and can be visualized to its true form. Vacuum packaging shape broken, it is not easy to view the real shape of its packaging products, packaging grade is not high. 2、Vacuum nitrogen-filled packaging, internal and external pressure balance (-600 ~ -700mmHg) air will not be able to gradually penetrate into the bag through the bag microporous, to prevent premature corruption of fresh products, deterioration. 3, vacuum nitrogen packaging, the most suitable for fragile, afraid of extrusion material packaging (such as flowers, crisps, snack foods, etc.), vacuum packaging can not be realized. 4, some moisture-containing food or material, after vacuum packaging due to the role of differential pressure within the bag, food or material oil and water seepage, will affect the inner quality of the food or material and the surface aesthetics. 5、Some fried foods or fruits and vegetables crisps, the use of vacuum nitrogen packaging, can effectively prevent food rancidity or extrusion, to extend the storage time