-
![Plastic Lid Machine]()
Plastic Lid MachinePlastic lid machines are a great addition to any packaging line. These machines have the ability to create a wide range of plastic lids for packaging containers of all shapes and sizes. They are
The Plastic Lid Thermoforming Machine (Cup Bowl Lid Making Machine） Uses Blow Molding or Blister Molding to Make Plastic Sheets into Plastic Cup Lids of Various Shapes and Sizes. Plastic Cup Lids Are Suitable for Making Coffee Lids, Tea Lids, Milk Tea Lids, Bowl Lids, And Other Shapes of Plastic Lunch Boxes. The Plastic Cover Making Machine Can Match with a Paper Cup Machine, Paper Bowl Machine, Etc. The Whole Production Process Has Gone Through the Process of Forming, Punching, Punching, Fully Automatic Transportation, And so On. Advanced Technology and Simple Operation Ensure the Production Quality of the Plastic Cup Lid.
Advantages of Plastic Lid Thermoforming Machine
Provides uniformity
All parts are molded using the same mold, ensuring that the parts remain the same size without effort (and therefore at a lower cost). Compared to cnc machined or 3d printed parts, part tolerances can reach +/- 0.125 mm (0.005 in.) and typically +/- 0.500 mm (0.020 in.)
Manufacture almost identical parts
Since all parts produced come from the same few molds, even parts with detailed features or complex geometries remain consistent.
Reduce costs
Due to the nature of plastic lid thermoforming machines, the more parts you produce, the less you will pay per piece. Once the initial equipment and materials are set up, this type of manufacturing requires little to no labor or time expense. A plastic lid thermoforming machine is the cheapest process for large-scale plastic production because it can produce hundreds or thousands of parts per day.
Increase production speed
Other manufacturing methods, including cnc machining and 3d printing, require more work per part, while plastic lid thermoforming machines only require injected material and cooling time to manufacture the part (however, some part types do require secondary machining, depending on their application). Throughput can also be increased by introducing mold cavitation (the number of hollow shapes within each mold). However, it's important to note that this only applies if the tool has already been made. Mold creation increases lead times for new molded parts.
Beneficial compatibility
Some forms of plastic lid thermoforming machines, such as overmolding and insert molding, can use a variety of materials to create a single part. It is estimated that more than 18,000 thermoplastics, thermosets, and elastomers can be used in injection molding itself. This means that it is easy to create parts that are compatible with the components they interact with.
Ability to manufacture complex parts at a fraction of the expense
Since it involves filling plastic into a mold, complex and complex parts can be manufactured in large quantities through this method without the need for a lot of labor or time. It's important to ensure that your design follows injection mold best practices, and we'll cover this in more detail.
Material flexibility
Because plastic lid thermoforming machines can utilize thousands of plastics and additives, it's easier to find the plastic with the properties you need.
Stable
Injection molded parts are isotropic, which means they form solid parts. This makes them stronger and more reliable than some 3d printed parts, so they last longer before they need to be replaced.
Material recyclability
Plastic lid thermoforming machines can reuse scrap, reducing waste and reducing the need to purchase more material.
Low labor costs
Since plastic lid thermoforming machines are primarily run by machines, labor costs are limited to supervision, quality checks, and other similar tasks
Why Choose Us
Professional team
Team members are highly skilled, well-versed in their respective responsibilities, and have the education, training, and experience they need to excel in their jobs
Good reputation
We have won honor and a good image in the packaging industry and related industries with high quality and good service.
After-sales service
Professional and thoughtful after-sales team, so that you have no worries after salesOur intimate service and strong after-sales team support
Products exported
Our products sell well at home and abroad, such as Southeast Asia, Southern Europe, the Middle East, Africa, South America, and Central America.
Injection molding machines
Injection molding machines inject molten plastic material into a specifically designed mold cavity. Once the plastic material cools and solidifies, it adopts the shape of the cup. Injection molding machines provide notable advantages such as remarkable production efficiency, meticulous control over cup dimensions, and the capability to produce cups with intricate designs or features. Their versatility makes them an excellent choice for businesses aiming to produce high-quality plastic cups with precision and efficiency.
Thermoforming machines
Thermoforming machines are incredibly adaptable and extensively employed in manufacturing various cup types, ranging from plastic and paper to foam cups. These machines use heat to soften a thermoplastic sheet pressed against a mold to achieve the desired cup shape.
Automatic paper cup forming machine
Blow molding machines are extensively employed in producing plastic cups, especially those with distinctive hollow and tapered shapes. They operate by employing a parison, essentially a hollow molten plastic tube. The parison is secured and then expanded by injecting compressed air, causing it to conform to the shape of the cup mold.
High-speed ultrasonic paper cup making machine
Paper cup forming machines are used for the production of disposable paper cups. These specialized machines primarily involve cutting paperboard into cup blanks, which subsequently undergo a coating process to enhance durability and resistance to leaks. A thin layer of plastic is often applied to the cups for added protection. Paper cup forming machines are in high demand within the food and beverage industry, primarily because paper cups are eco-friendly and easily recyclable.
Disposable pla paper cup making/forming machine
Foam cup forming machines are purpose-built for manufacturing foam cups, which are highly regarded for their exceptional insulation capabilities. These machines employ expanded polystyrene (eps) or similar foam materials subjected to heating, expansion, and molding to achieve the desired cup shape. The advantages of foam cup forming machines are manifold. They facilitate efficient production, resulting in lightweight cups with excellent thermal insulation.
Rotary cup forming machines
Rotary cup forming machines are exceptionally efficient for large-scale cup production. These machines employ a rotating carousel mechanism that guides cup molds through multiple stages of the forming process. One of the key advantages of rotary cup forming machines is their high-speed production capability, allowing for swift manufacturing of cups.
Food & Beverage
The plastic lid thermoforming machine can make all kinds of food and beverage packaging, such as cup lids, lunch boxes, bottles, etc. These packages protect the quality and safety of food and beverages, while also improving the hygiene and environmental performance of food and beverages.
Consumable
The automatic plastic thermoforming machine can package all kinds of daily necessities and household items, such as shampoo bottle caps, cosmetic boxes, etc. These packaging can improve the quality and grade of the product, while also facilitating consumption and business transactions.
Electrical and electronic field
The plastic cover thermoforming machine can manufacture the shell and internal parts of various electronic products, such as mobile phone cases, tablet cases, etc. The quality and safety of these parts are crucial to the performance and use of electronic products, so the manufacturing precision and stability of the application of plastic lid thermoforming machines can guarantee the quality and safety of electronic products.
Automotive supplies
The fully automatic plastic thermoforming machine can make auto parts and auto supplies, such as car cup holders, car fuel tanks, etc., which can improve the safety and convenience of the car, and at the same time, it can also improve the environmental performance of the car.
Other areas
The plastic lid thermoforming machine can also be applied to many fields such as toy manufacturing, household goods manufacturing, sports equipment manufacturing, etc., which require a large number of plastic products, while the plastic lid thermoforming machine can produce a variety of high-quality plastic products quickly and efficiently. ——High-quality plastic products to meet the needs of different fields05
Electronic control part
● The Plastic Lid Thermoforming Machine uses contact relays to switch various actions. It often fails due to loose contact screws and aging contacts. Usually, new products should be replaced after one million times of use to ensure the stability of the electronic control. In particular, environmental factors such as dust adhesion and humid air will also affect the machine’s operation.
● The modern injection machine adopts a contactless integrated circuit, which greatly reduces the connection of wires, significantly improves the undesirable phenomena caused by the wires, and improves the stability.
Institutional part
● The mechanism of the thermoforming machine should be regularly maintained and lubricated to reduce the coefficient of friction and reduce wear. The nuts and locking screws on the head plate should be checked regularly to prevent the elder pillar from breaking due to uneven force.
● The mold thickness adjustment mechanism should regularly check whether the large gear or chain of the drive shaft is offset or slack. Whether the screw of the pressure plate on the gear is loose, whether the lubricating grease is enough, etc.
Oil pressure part
In the hydraulic system, attention should be paid to the cleanliness of the hydraulic oil to maintain the quality of the hydraulic oil. The stable and high-quality hydraulic oil should be used. In addition to regular replacement, its working temperature should be properly controlled below 50C to avoid deterioration. And affect the stability of hydraulic action.
PP material
PP material is a thermoplastic synthetic material, which has the characteristics of light weight, good toughness, high strength, good temperature resistance, etc., and is not easy to deform, crack and age. Therefore, in the field of capping equipment, PP materials are very commonly used, such as food packaging caps, beverage bottle caps, container caps, etc., which are made of PP materials.
PE material
PE material is also a commonly used cover equipment material, the main characteristics are good toughness, scratch resistance, good flexibility, good temperature resistance, etc. Because this material is environmentally friendly and has low cost, it is widely used in the production of lids in cosmetics, medicine, food and other industries.
PVC material
PVC material is widely used in the field of lid equipment due to its good thermal stability, mechanical strength, electrical properties, chemical resistance, etc., such as home appliances, cosmetics, food and other industries often use PVC material to make lids. However, PVC is harmful to the environment and health, so it is important to choose the right material.
PS material
PS material is widely used in the manufacture of capping equipment, such as jar caps, bottle caps, toiletry caps, etc., and the main characteristics are light weight, high hardness, smooth surface texture, good transparency, etc. However, the PS material is dense and is generally only suitable for lightweight covers, and is not suitable for use if it is necessary to carry heavy loads.
Cooling tubes
Make sure cooling tube heights are set to twice material thickness, or, for thicker materials, at a maximum of 0.020”-0.030” above the material height. This can be accomplished with a gauge between the top of the chain and the cooling tube.
Pierce wheels
Set the pierce wheels at the infeed of the chain rail so the sheet is being pushed all the way down onto the pin. This ensures that the sheet is set in correctly, thus eliminating unnecessary stress to the chain, saddle, or guidebar and premature wear.
Clearances
Keep the distance from the edge of the tool to the chain down to a maximum of half an inch per side, and watch the clearance between the chain rail’s chain adjuster bolt head and the side of the form tool. Some thicker materials are forgiving and can tolerate wider tolerances, but especially with high shrink value material or a lot of cavities, the narrow gap is imperative.
Parallel chain rails
Be sure to start with the chain rails parallel to the form tool. Each side should have 3/8”-1/2” clearance on the outside of the form tool to the chain on the rail. Chain rails need to be set up parallel from the form station stabilizer to the exit end of the machine. If a “v” formation is needed, it should not exceed 2”, and should be done from the infeed of the machine to the infeed form station stabilizer rod only. From the mold to the exit end of the machine, parallel chain rails are imperative.
Chain stretch
Chains can stretch and wear over time. To check this, first measure a certain number of links (say, 60) at the same spot on each chain. If there is a difference, even a slight one, it’s likely that stretch has occurred. Next, remove both chains from the rails, lay the chain on the floor, and place the pins on the chain facing each other, making sure the chains are pulled tight equally. Measure the chains, and if one is longer than the other or the pins don’t align, replace both.
Stripper plate location
The stripper plate should not extend below the sheet line when stroked, and it should stroke as the platen is retracting. The stripper plate should hold sheet in place and almost appear to stay still as the sheet evacuates the cavities. If the sheet bows upwards, making it hard to strip parts out of the mold, the stripper plate may need adjustment.
Exit pan location
The exit pan between the rails and after the tool should be set at the sheet line. The pan should set so the sheet is not able to sag when indexing out of the mold. Problems occur frequently, especially with thinner materials, if the exit pan is lowered and the sheet doesn’t catch the pan and is bound instead.
Sheet orientation
Sheet orientation can cause issues. To check it, submerge a 6” square piece of material into 400ºf hot cooking oil or place in a 400ºf oven. Once heated, measure the difference from the cold to the heated materials both in the index and across index directions. A sheet orientation of greater than 10% may cause problems.
Proper cooling
Improper cooling in the molds can lead to costly problems, and may be caused from cooling channels getting plugged, running the line too quickly, or using a heat exchanger or chiller with insufficient capacity. One way to determine whether cooling issues are occurring is to check the web temperature with an infrared temperature gun; temperature variance between the front, middle, and back of the sheet should not exceed 5ºf.
Centering chain rails
Check to ensure the rails are centered. This may be achieved through the use of centerline bars or platen key ways, and a string through the machine marking the center line. There should be the same distance from all adjustment screws to the centerline.
How to Maintain Plastic Lid Thermoforming Machine
Clean regularly
Regular cleaning of the internal and external parts of a plastic lid thermoforming machine is an important step in keeping it functioning properly. Removing accumulated dust and debris can prevent clogging and damage to critical components. Use a soft cloth or brush to gently wipe the surface of the machine and use compressed air to blow off dust and debris inside.
Lubricate parts
Some plastic lid thermoforming machines require regular lubrication to ensure smooth operation. Lubricate the lubrication points and use the appropriate lubricant according to the manufacturer's recommendations to extend the life of the machine.
Inspect and replace worn parts
Regularly inspect all parts of the machine, such as heating elements, vacuum pumps, cylinders, etc., to ensure that they are working properly. If you find any worn or damaged parts, replace them in time to avoid further damage to the whole machine.
Follow the operator's manual
Read and follow the operating manual of the plastic lid thermoforming machine carefully. Different machines may have different requirements and precautions, and the correct operation method can ensure the safe and effective operation of the equipment.
Wear personal protective equipment
Always wear proper personal protective equipment such as goggles, gloves, and overalls before operating the plastic lid thermoforming machine. These gear can protect your body from possible injuries or burns.
Avoid contact with heat sources
During the vacuum forming process, the plastic sheets will be heated to high temperatures. Avoid direct contact with heating elements and thermoplastics to avoid burns.
Handle the control panel with care
The operating control panel is a key part of controlling the operation of the vacuum blister machine. Before operating, it is important to understand the functions of the individual buttons and switches and operate them in the correct order. Avoid accidents caused by misoperation.
Make sure there is good ventilation
Smoke and odors are generated during the vacuum forming process. Ensure that the operation area has a good ventilation system to eliminate harmful substances and keep the air fresh.
Inspect the equipment regularly
Regularly check whether the safety device and valve of the vacuum blister machine are working properly. If a fault or abnormality is found, it should be repaired or replaced immediately.
Our Factroy
PingyangSinoplast Machinery was founded in 2013,It has a history of over a decade, and in 2023, we built a new factory for production. we are a professional plastic machinery provider in China.Our company is engaged in research, development, production, sale and service for Plastic Sheet Extrusion Lines, Plastic Cup Making Machine, Automatic Muti Stations Thermoforming Machines, Plastic Lid Thermoforming Machine, Mold&Auxiliary Equipments.
Our Certificate
Official certification, professional after sales service.
FAQ
We're well-known as one of the leading plastic lid thermoforming machine manufacturers and suppliers in China. If you're going to wholesale customized plastic lid thermoforming machine, welcome to get more information from our factory.
Biodegradable Plastic Glass Making Machine, Plastic Tea Cup MachinePopular Products
Max. Forming Depth :140MM
Stations：3/4
Max. Forming Depth:105MM
Stations : 4
Max. Forming Depth:105MM
Stations : 3
