The sealing packaging machinery and equipment refers to the products contained in the packaging container, the container sealing machinery. Container sealing can effectively protect the product, so that the product in the shelf life of the packaging operation is not due to the impact of damage and deterioration is also conducive to the storage of packaged products, transportation and sales. Packaging quality depends largely on the sealing quality, and choose the right sealing machine to achieve the sealing process mechanization, automation is to improve the sealing quality is an important guarantee.
Second, the classification of sealing packaging machinery and equipment
Based on the presence or absence of sealing material can be divided into:
No sealing material: hot press sealing machine, pulse sealing machine, melt welding sealing machine, embossing sealing machine, folding sealing machine, insertion and closure sealing machine
With sealing material: rolling sealing machine, rolled sealing machine, pressure sealing machine, spinning sealing machine.
With auxiliary sealing materials: ligature sealing machine, tape sealing machine, bonding sealing machine, sewing sealing machine, pinning sealing machine.
1, hot press sealing machine
Hot press sealing machine is the heat sealing method to close the packaging container machinery. It is widely used in a variety of plastic bags heat sealing closure. According to its different heat sealing methods, the heat sealing method of the heat press sealing machine can be divided into the following types: plate heat sealing machine, roller heat sealing machine, belt heat sealing machine, sliding roller heat sealing machine, sliding heat sealing machine, pulse heat sealing machine, ultrasonic heat sealing machine, high frequency heat sealing machine.
2, crimping sealing machine
(1) metal container crimping sealing machine, metal container crimping sealing machine is a roller will be the metal cover and packaging containers at the opening of the mutual crimping hook to close the packaging containers of the machinery, known as crimping sealing machine, also known as can sealing machine. The crimping has double crimping, triple crimping and other forms, of which the double crimping sealing most.
(2) glass containers crimping sealing machine, glass containers and metal cover for crimping sealing, due to the difference between the two material properties (such as metal sheet metal materials, high strength, good toughness, good plastic deformation performance, but the glass material has a high degree of brittleness and hardness), so can not be as metal cans with the body and lid flange **** roll double crimping method of sealing. In order to make the glass can body and cans between the lid to get a tight and reliable sealing, glass containers produced for sealing the neck of the convex prongs, sealing cans in the elastic rubber ring placed in the glass bottle mouth convex prongs and metal cover between the roll sealing roller sealing joint parts of the implementation of the rolling process, so that the lid was rolled, squeezed, forcing the elastic rubber ring to produce extrusion deformation, while the edge of the lid rolled and squeezed to the bottle mouth sealing with the convex prongs below, constituting a firm Mechanical hook connection, in the bottle mouth convex prongs and cover between the deformation of the elastic ring to protect the sealing reliability of the glass container seal.
3, rotary sealing machine
Rotary sealing machine refers to the rotary sealing equipment to close the packaging container machinery. Applicable to plastic bottles and glass bottles. Bottle cap can be made of sheet metal or plastic, usually lined with elastic gasket inside the cap, the new with sealing structure of the screw mouth plastic cap and sealing element with the plug to do the cap can not add elastic gasket.
(1) plastic bottle screwing sealing machine, plastic bottle sealing equipment is usually with a single threaded cap, to screw the way screwed in the bottle with threaded mouth or port. Bottle cap screwing process, the sealing cap and bottle mouth movement is spiral movement, both rotation between each other, but also the displacement between the axis of the traveling movement.
(2) glass containers spinning closure machine, glass containers spinning closure machine and plastic bottles are similar to the spinning closure machine, are by rotating the sealing device to close the packaging container of machinery. Beverage juice, medicine and other items packaged in glass bottles as packaging containers, its packaging with a threaded connection sealing are used in a single threaded connection. Bottle sealing parts of about two or more full turns of the threaded buckle, the cap has the same specifications of the connection thread; in order to make the cap sealing to get high sealing performance, the cap is often padded with cardboard or rubber and other materials such as sealing gasket, the sealing method and the plastic bottle spinning sealing method class
4, rolling sealing machine
Rolling sealing machine refers to the use of the roller rolled metal cover to make it Deformation closed packaging container machine. It is easy to form a thin metal cap shell set on the top of the bottle neck, operation of the cap head, the use of chuck within the roller in the cover rolled out threads.
5, pressure plug sealing machine
Press plug sealing machine is a certain elasticity of the cork with mechanical force into the bottle mouth, relying on the cork and the bottle surface of the deformation of the extrusion between the realization of the sealing machine.
6, carton sealing machine
Packaging carton is a kind of packaging containers, it has been carried out in a variety of forms of packaging pieces and then make a collection of packaging arrangements. Ordinary cardboard or corrugated cardboard box bottom of the box are made of four folded pieces (i.e., two inner folded pieces, also known as small pieces; two outer folded pieces, also known as large pieces or side pages) composed of the folded pieces must be folded between the sealing to seal. Carton automatic sealing machine can be a stand-alone device or a component of automatic cartoning machinery, common carton gluing and sealing machine, carton tape sealing machine, strapping and sealing machine and many other types.
(2) carton tape sealing machine, the use of adhesive tape sealing is currently the most widely used sealing box (box) method. Folded sealing fold or has been used to seal the carton with adhesive, with a roll of disk type pressure-sensitive adhesive tape across the sealing folding folding seam paste, and apply a certain amount of pressure on it to make the box mouth sealing. Carton body ends and adhesive tape bonding length should generally be greater than 50 millimeters.