Plastic lid thermoforming machine supplier tells how are plastic bottle caps produced

Plastic lid thermoforming machine supplier tell you,the production process of plastic bottle caps is roughly divided into two types: compression molding cap production process and injection cap production process.

1. Production process of compression molded cover:

Compression-molded bottle caps have no traces of material openings and look more beautiful. The processing temperature is low, the shrinkage is small, and the cap size is more accurate. Put the mixed material into the compression molding machine, heat the material to about 170 degrees Celsius in the plastic cover thermoforming machine to become a semi-plasticized state, and extrude the material into the mold quantitatively. The upper and lower molds are closed, and the cap is pressed into the shape of a bottle cap in the mold, and the cap formed by compression molding remains in the upper mold;

The lower mold is removed, the bottle cap passes through the rotating disk, and the bottle cap is removed from the mold in a counterclockwise direction of the internal thread. After the bottle cap is compression molded, it is rotated on the machine, and a knife is used to cut the anti-theft ring with multiple points connected to the bottle cap at 3 mm from the edge of the bottle cap.

2. Production process of injection cap:

Plastic lid thermoforming machine supplier tells you,The injection mold is large in size and it is troublesome to replace. Each injection mold requires a large pressure to produce multiple caps, and the material heating temperature is higher, and the energy consumption is higher than that of compression molding. Put the mixed material into an injection molding machine, heat the material to about 230 degrees Celsius in the machine to become a semi-plasticized state, inject it into the mold cavity of the mold through pressure, and cool and shape it.

The bottle cap cooling and shrinking grinding tool rotates counterclockwise, and the bottle cap is pushed out under the action of the push plate to realize the automatic fall off of the bottle cap. The use of threaded rotation demoulding can ensure the complete forming of the entire thread and effectively avoid the deformation of the bottle cap Scratched. After cutting the anti-theft ring and installing the sealing ring in the bottle cap, a complete bottle cap is produced.

What is plastic lid thermoforming machine

A Plastic Lid Thermoforming Machine is a type of equipment used in the manufacturing process of plastic lids, covers, trays, and other packaging products. Thermoforming is a process that involves heating a plastic sheet until it becomes pliable, then forming it into a specific shape using a mold or tool, and finally cooling it to create the final product.

The Plastic Lid Thermoforming Machine automates the thermoforming process, making it easier and more efficient to produce plastic lids in large quantities. The machine typically consists of the following components:

Heating Station: The plastic sheet is heated to a specific temperature to make it pliable and ready for forming. The heating station may use infrared heaters, radiant heaters, or other heating methods to achieve the desired temperature.

Forming Station: The heated plastic sheet is then placed over a mold or tool that shapes it into the desired lid or cover design. The forming station uses vacuum, pressure, or mechanical force to mold the plastic sheet into the desired shape.

Trimming Station: After the plastic lid is formed, excess material is trimmed off to create a clean and precise edge. The trimming station may use cutting tools, knives, or other methods to trim the excess plastic material.

Cooling Station: Once the plastic lid is formed and trimmed, it is cooled to set the shape and ensure that it retains its structural integrity. The cooling station may use fans, water cooling, or other cooling methods to expedite the cooling process.

Plastic Lid Thermoforming Machines come in various sizes and configurations, depending on the production volume, lid size, and design requirements. These machines are commonly used in industries such as food packaging, beverage packaging, pharmaceuticals, and cosmetics to produce plastic lids for containers, cups, bottles, and other packaging products.

Plastic Lid Thermoforming Machines play a crucial role in the manufacturing process of plastic lids, offering automation, precision, and efficiency in producing high-quality plastic packaging products for various industries.