The general sealing machine is composed of a frame, a speed reduction transmission mechanism, a sealing printing mechanism, a conveying device and an electrical and electronic control system. When the power is turned on, each mechanism starts to work, and the heating element is heated after being energized, so that the upper and lower heating blocks are heated up sharply, and the temperature is adjusted to the required temperature by the temperature control system, the printing wheel rotates, and the cooling system starts to cool as needed, and the conveyor belt is sent, And adjusted by the speed control device to the required speed.
When the package containing the article is placed on the conveyor belt, the sealing portion of the bag is automatically fed between the two sealing tapes in operation and brought into the heating zone, and the heat of the heating block is transmitted to the sealing portion of the bag through the sealing tape. The film is melted by heat, and then passed through the cooling zone to appropriately lower the surface temperature of the film, and then rolled by a knurling wheel (or a printing wheel) to bond the upper and lower plastic films of the sealing portion and press the mesh pattern (or printed logo) ), the sealed bag is sent out of the machine by the guiding rubber belt and the conveyor belt to complete the sealing operation.
Generally according to the mechanical properties of the packaging material, it can be divided into the following two categories:
Flexible container closure
The flexible container is a bag type container made of a flexible material such as paper, a plastic film, and a composite film. The sealing of such containers is mostly combined with bag making and filling, and is rarely used independently. The sealing device is different due to different materials.
1 paper bag sealing device: For paper materials, generally apply adhesive at the sealing point, and then apply mechanical pressure to seal.
2 plastic film bag and composite film bag sealing device: plastic bag or composite bag made of good thermoplastic, generally heated directly at the seal and applied mechanical pressure to fuse the seal.
3-port cup type container sealing device. For example: common soy milk cup, tea cup, etc. The cup is adhered to the film by heating to seal the container.
Automatic filling and sealing machine
It is mainly used for the production of plastic cups, plastic boxes and plastic bottles, and the corresponding materials for the production of composite film sealing products. Fill and seal materials such as frozen, juice, milk, yogurt, beverages, and fast food. It can be adapted to the filling of liquid and slurry of different viscosity, and can be adapted to packaging containers of different shapes and capacities.
1Capping cap sealing machine: The finished cap of this sealing machine is machined with internal thread beforehand, and the thread has single head and long head. The medicine bottle uses a single thread, and the can bottle uses a multi-head thread. The machine is rotated against the mouth of the container by rotating the cover.
2Rolling sealing machine: The sealing cover of this sealing machine is mostly made of aluminum. Without the thread beforehand, the aluminum cover is rolled by the roller, so that the sealing thread has the same thread shape as the shape of the bottle mouth, and the container is sealed. When the lid is unsealed, it will be broken along the indentation around the skirt and cannot be restored, so it is also called "anti-theft cover". This machine is mostly used for the sealing of high-grade alcohol and beverages.
3Blank sealing machine: It first puts the cylindrical metal cover on the bottle mouth, rolls the bottom edge with a roller, deforms it inwardly, and closes the flange of the bottle mouth to seal it. This machine is mostly used for sealing packaging of wide-mouth cans and the like.
4 gland sealing machine: It is a crown cap sealing machine specially used for beverages such as beer and soda. The crown cap is placed on the bottle mouth, the gland mold of the machine is pressed down, and the corrugated periphery of the crown cap is squeezed and contracted, and is caught on the flange of the neck of the bottle mouth, thereby causing mechanical hooking between the cap and the bottle mouth. Thereby the bottle is sealed.
5 plug sealing machine: This sealing material is made of rubber, plastic, cork and other materials with a certain elasticity, using its own elastic deformation to seal the bottle mouth. When the machine is sealed, the stopper is placed above the bottle mouth, and the sealing is packaged by pressing the bottle stopper into the bottle mouth by the vertical pressure. The plug seal can be used as a separate seal or as a combination seal with the cap.
6 crimping machine: This machine is mainly used as the sealing of metal food cans. It uses a roller to seal the can lid and the periphery of the can body flange by crimping, hooking and pressing each other.
7 desktop automatic aluminum foil sealing machine. This machine is mainly used in medicine, pesticide, food, cosmetics, lubricating oil and other industries. It is the ideal sealing equipment, and it has fast sealing speed, all stainless steel mold forming shell, easy to use, good sealing quality, continuous work, etc. Batch production, beautiful appearance.
8 hand-held aluminum foil sealing machine. The hand-held aluminum foil sealing machine is used for sealing aluminum foil of non-metal packaging containers such as plastic glass in the pharmaceutical, chemical, food, beverage, cosmetics, lubricating oil and other industries. The machine adopts the principle of electromagnetic field induction heating, which uses high-frequency current to generate magnetic field through the induction coil. When the magnetic flux passes through the sealed aluminum foil material, a large amount of small eddy current is generated instantaneously, so that the aluminum foil spontaneously generates heat at a high speed, and melts the sol on the aluminum foil. Paste on the seal of the seal to achieve the purpose of rapid sealing.
9 pneumatic vertical sealing machine. The pneumatic vertical sealing machine adopts a vertical sealing method, which improves the working efficiency of the operator and the flatness of the sealing, and can reduce the labor intensity for overweight items. The machine has reasonable structure, stable quality and reliable performance. It can be manually operated and can be pedaled electric, simple and convenient, efficient and practical. It is widely used in the chemical, food, food, feed and other industries.
10 electromagnetic induction sealing machine. The electromagnetic induction sealing machine utilizes the principle of electromagnetic induction to instantly generate high heat of the aluminum foil on the bottle mouth, and then fuses it on the bottle mouth to achieve the function of sealing. Sealing speed is fast, suitable for mass production; all stainless steel mold forming shell, beautiful and generous; easy to use, good sealing quality. continuously working. It is an ideal sealing device for the pharmaceutical, pesticide, food, cosmetics, lubricants and other industries.