LG-GF303 Automatic Food Tray Sealing Machine Plastic Tray Sealing Machine

Automatic tray sealing machine is a kind of equipment that can automatically complete the tray sealing operation. It is widely used in the packaging industry. The following is a detailed introduction from the aspects of its characteristics, structure, working process, etc.:

Features
High degree of automation: The biggest feature of the automatic tray sealing machine is its high degree of automation. It can automatically complete a series of operations from tray feeding, positioning, film placement, sealing to tray delivery, without a lot of manual intervention, greatly reducing labor costs and improving production efficiency. For example, in a large food factory, an automatic tray sealing machine can complete hundreds or even thousands of trayes of sealing operations per hour.
Stable sealing quality: Through precise mechanical control and advanced sealing technology, the sealing quality can be guaranteed to be stable and consistent, the sealing is firm and the sealing is good, which can effectively prevent product leakage, deterioration and other problems, and improve the packaging quality and shelf life of the product.
High production efficiency: It can work continuously and uninterruptedly, with fast production speed, which can meet the needs of large-scale production. The production speed of different models of automatic tray sealing machines varies. Generally, dozens to hundreds of trayes can be sealed per minute.
Easy to operate: usually equipped with a user-friendly operation interface, the staff only needs to perform simple parameter settings and start operations, and the machine can run according to the set program, and can be operated without professional technical training.
Strong scalability: many automatic tray sealing machines can add functional modules such as coding, labeling, and nitrogen filling according to user needs to achieve diversified and integrated packaging.

Structural composition
Tray delivery mechanism: mainly responsible for conveying empty trayes to the sealing position in a certain order and speed, usually composed of conveyor belts, tray pushing devices, positioning devices, etc., to ensure that the trayes arrive at the designated position accurately.

Sealing mechanism: It is the core part of the automatic tray sealing machine, mainly including heating system, pressurizing device and sealing mold. The heating system is used to heat the sealing material to a suitable temperature, and the pressurizing device applies a certain pressure to make the sealing material tightly combined with the edge of the tray to complete the sealing operation.

Film placement mechanism: responsible for accurately placing the sealing film on the tray, usually including film roll bracket, film placement motor, tension control system, etc., which can automatically adjust the length and tension of the film according to the size of the tray and sealing requirements.

Film cutting mechanism: After the sealing is completed, the excess sealing film is cut off to ensure the neatness and beauty of the sealing. It is generally composed of a cutter, a drive device and a positioning device.

Control system: It is the "brain" of the automatic tray sealing machine. Through controllers such as PLC (programmable logic controller) or single-chip microcomputer, the actions of each mechanism are accurately controlled and coordinated to realize the automatic operation of the machine. The staff can set parameters such as sealing temperature, sealing time, and tray feeding speed through the operation interface, and the control system controls the operation of the machine according to these parameters.

Working process
Tray supply: The empty tray is placed at the feed port of the tray feeding mechanism, and the tray feeding mechanism transports the trayes one by one to the sealing position according to the set speed and interval.
Film placement: When the tray reaches the specified position, the film placement mechanism pulls the sealing film from the film roll and accurately covers the tray.
Sealing: The heating element of the sealing mechanism heats the sealing film and the edge of the tray, and the pressure device applies pressure at the same time, so that the two are fused together under the action of heat and pressure to complete the sealing operation.
Film cutting: After the sealing is completed, the film cutting mechanism moves to cut off the excess sealing film, making the sealing part neat and beautiful.
tray discharging: The sealed tray is conveyed to the discharging port through the conveyor belt, completing the entire sealing process and entering the next packaging process.

Application field
Catering industry: Commonly used for sealing fast food trayes, soup bowls, sauce trayes, etc., to facilitate food packaging and distribution, and maintain food temperature and hygiene.
Pharmaceutical industry: It can be used for sealing medicine packaging trayes, ointment tubes, oral liquid bottles, etc. to ensure the sealing and stability of medicines and prevent medicines from getting damp, deteriorating or contaminated.
Daily chemical industry: Automatic tray sealing machines are also often used for sealing cosmetic trayes, skin care trayes, toothpaste tubes, etc. to improve the packaging quality and appearance of the Products.
Electronic industry: It is used for sealing electronic component trayes, circuit board trayes, etc., to prevent moisture, dust, and static electricity, and protect the performance and quality of electronic components.