Plastic lunch box thermoforming machine
With the rapid development of the food packaging industry, disposable plastic lunch boxes have become a consumer product with huge market demand due to their lightness, hygiene, economy and practicality. As the core equipment for producing this type of packaging, the plastic lunch box thermoforming machine has continuously made breakthroughs in technological innovation and automation. The following will introduce the functional characteristics, working principle and technical advantages of this equipment in detail.
Plastic lunch box thermoforming machine is a device that uses thermoforming technology to process plastic sheets into various shapes. The core principle is to soften the sheet by heating, then press it into shape and cut it using a mold, and finally produce plastic products that meet the needs. This equipment can produce plastic lunch boxes of various shapes and specifications, including divided lunch boxes, take-out boxes, food lids, etc.
Equipment advantages
1. Efficient production capacity
Thermoforming machines can achieve high-volume production by operating at high speeds. Modern equipment can complete 20-50 molding cycles per minute. Each mold can accommodate multiple lunch box cavities, and the daily output can easily reach tens of thousands of pieces, meeting the requirements of the factory for large-scale production.
2. Process refinement
The temperature control system equipped with the equipment can accurately control the temperature of the heating sheet to make the material soften evenly. Through high-precision molds and pressure adjustment functions, the product is ensured to have uniform thickness, smooth edges, and no bubbles or dents on the surface, thereby significantly improving the quality of the product.
3. Multi-material compatibility
The plastic lunch box thermoforming machine is capable of processing a variety of thermoplastic materials, such as PP, PET, PS and PVC. In particular, PP materials are widely used and suitable for high-temperature-resistant food packaging to meet the requirements of different customers for material properties.
4. Intelligent control system
The advanced PLC (programmable logic controller) combined with the touch screen interface allows operators to easily set parameters, adjust molding time and temperature, and monitor the equipment operating status in real time. Some high-end models also support remote control and fault diagnosis, reducing the complexity of manual intervention and improving the stability of the production line.
5. Energy-saving and environmentally friendly design
The thermoforming machine not only adopts energy-saving design in the heating system, such as infrared uniform heating technology, but also reduces the waste of raw materials by recycling waste scraps, further reducing production costs. At the same time, it implements the concept of environmental protection and is in line with the industry trend of green manufacturing.
Key technical details of the equipment
1. Pressure and temperature control during the molding process
The key to thermoforming lies in the pressure matching between the mold and the sheet and the precise adjustment of the temperature. Modern equipment uses a servo hydraulic system that can quickly and smoothly apply pressure, while cooperating with precision sensors to feedback temperature data in real time to ensure that every detail of the molding process is controllable.
2. Automated cutting and stacking
The formed lunch boxes are separated from the sheets by an automatic cutting system, and the cutting edges are smooth, without the need for secondary processing. Subsequently, the products are automatically conveyed to the stacking device for neat arrangement, saving time and labor for subsequent packaging and transportation.
3. Modular design facilitates mold replacement
The flexible replacement of molds is a highlight of the plastic lunch box thermoforming machine. Lunch boxes of different specifications can be converted to production by quickly changing molds, avoiding long-term downtime adjustments and greatly improving the efficiency of the production line.
Detailed explanation of the workflow
1. Loading stage
Plastic sheets are stored in the form of reels and gradually fed into the machine through a fully automatic loading device. The loading process is stable and continuous, avoiding production interruptions caused by manual intervention.
2. Heating stage
After the sheet enters the heating zone, the material is evenly heated by the upper and lower double-sided heating plates. The temperature control system in the heating zone can accurately adjust the temperature according to the thickness of the sheet and the material properties to ensure that each section of the sheet reaches the optimal softening state.
3. Forming stage
The heated sheet enters the forming zone and is pressed into shape by the mold. This stage combines air pressure, vacuum adsorption and mechanical pressing technology to ensure that the material fits the mold fully to form the designed lunch box shape.
4. Cutting and collection stage
The formed sheet is separated into independent finished lunch boxes by the cutting device, and the scraps are automatically collected and sent to the recycling system. The finished products are transferred to the stacking area by the conveyor belt for neat stacking.
Application scenarios and market prospects
Plastic lunch box thermoforming machines are mainly used in the field of food packaging, including takeaway lunch boxes, lids, pastry trays, etc. In addition, as the application of disposable lunch boxes in medical, industrial and other industries gradually expands, its market demand continues to grow. Especially driven by the rapid development of the takeaway industry, thermoforming machines with high efficiency, intelligence and environmental protection have become the main force in the equipment market.
In recent years, the country has put forward higher requirements for the sustainability of plastic products, and enterprises have gradually transformed to environmentally friendly materials (such as degradable plastics). The improvement of modern thermoforming equipment in compatibility and energy saving can help manufacturers better cope with these challenges and seize market opportunities.
Conclusion
Plastic lunch box thermoforming machines are not only key equipment in the packaging industry, but also represent the direction of manufacturing industry towards intelligence and environmental protection. With its high efficiency, precision molding and material compatibility, it plays an indispensable role in modern industrial production. For food packaging companies, this type of equipment will be an important tool to achieve high-quality products, optimize production costs and expand market share.
