HDPE Blown Film Machine
WISDOM MACHINERY is famous brand in the world, We are special in soft packaging& printing machinery, including stretch film making machine , film blowing machine,plastic bag making machine, flexo printing machine, recycling machine, slitting machine, filling machine etc.
we are already sold to more than 168 country, such as: Hungary , USA,Mexico, Canada, Argentina, Brazil,Chile,Ecuador, Paraguay, Colombia, Peru, korea,malaysia, india,thailand, bangaladesh, phillppines, pakistan, Turkmenistan, Azerbaijan, Armenia, Indonesia. Iran , Saudi arabia, Syrian, Jordan, Lebanon, Palestine, kosovo, Israel.
Why Choose Us
Experienced and Professional Team
Our team is made up of experienced professionals who are committed to providing the best services and support to our clients.
High-Quality Products
We produce high-quality packaging machinery that meets international standards. Our machines are durable, reliable, and easy to operate.
Fast Delivery
We understand the importance of timely delivery, and we are committed to delivering our products within the shortest time possible.
Competitive pricing
They offer competitive pricing for their products and services, making them a cost-effective solution for your machinery needs.
HDPE Blown Film Machine is one of many polymer manufacturing processes. This method is used to produce commodity and specialized polymer films that are typically used in packaging such as shrink, stretch, barrier films (used to protect deli meat), frozen food packaging, and shopping bags.
There are many types of polymers that can be used in blown film extrusion with the most common being polypropylene and polyethylene (LDPE, HDPE and LLDPE). This method can manufacture monolayer films as well as more complex multi-layer films that involve co-extrusion to combine more than one plastic into a single film.
Advantages of HDPE Blown Film Machine
Strength and durability
HDPE Blown Film Machine can exhibit excellent strength and durability characteristics. This makes them suitable for applications requiring robust and reliable packaging materials.
Wide range of film structures
Blown film extrusion can create various film structures, including monolayer films and multilayer films. Multilayer films offer enhanced properties such as improved barrier properties, which are important for applications like food packaging.
High production speeds
Blown film extrusion processes can operate at high speeds, contributing to efficient production rates. This is particularly advantageous for meeting the demands of large-scale manufacturing.
Film transparency
HDPE Blown Film Machine can be produced with a high degree of transparency, making them suitable for applications where visibility or display of the packaged contents is important.
Film thickness control
The process allows for precise control over film thickness. This is critical for applications where specific thickness requirements are necessary for functionality and performance.
Ease of integration
Blown film extrusion equipment can be integrated into existing production lines, making it adaptable to various manufacturing setups and processes.
HDPE film is a multifunctional material with high strength, excellent chemical resistance, water resistance and excellent electrical insulation properties. Therefore, it has a wide range of applications in various industries:
● Food packaging: HDPE film is used to make food packaging bags, cling film and packaging film to ensure the freshness and safety of food.
● Construction industry: In the construction industry, HDPE films are widely used in waterproofing membranes, roof waterproofing materials, etc. to improve the durability and waterproofness of building structures.
●Agricultural use: Used for agricultural covering, mulching film, etc. to help farmers improve crop yield and quality.
● Medical field: Medical-grade HDPE films are used in medical packaging materials, operating room covers and disposable medical devices to ensure high standards of hygiene and safety.
●Industrial use: In the industrial field, HDPE film is used for packaging, protection, isolation, etc., and is widely used in the manufacturing industry.
What is the process of HDPE Blown Film Machine?
Blown film extrusion is a common manufacturing process used to produce plastic films, which are widely used in various packaging and industrial applications. The process involves melting plastic resin and then blowing air into it to create a bubble-like structure that is subsequently flattened and cooled to form a continuous sheet of plastic film. Here are the key steps in the blown film extrusion process:
Material Selection
Choose the appropriate plastic resin based on the desired properties of the film, such as clarity, strength, flexibility, and barrier properties. Common materials include polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), and others.
Extrusion
The chosen plastic resin is fed into an extruder, which consists of a hopper, barrel, and screw. Inside the extruder, the resin is heated and melted as it moves along the screw.
Melt and Mixing
As the plastic resin is pushed through the extruder, it is subjected to heat and pressure. The screw within the extruder both melts and mixes the plastic, ensuring uniform properties and removing any impurities or additives.
Die Head
The molten plastic exits the extruder through a circular die head. The die head determines the size and shape of the bubble that will be formed.
Bubble Formation
Air is introduced into the center of the molten plastic stream as it exits the die head. This causes the plastic to expand and form a bubble.
Bubble Control
The size of the bubble is controlled by adjusting the rate of air flow and the speed at which the film is pulled away from the die head. This controls the film's thickness.
Cooling
The inflated bubble of plastic film is cooled as it moves through a series of air-cooling rings or a water bath. This solidifies the film and sets its dimensions.
Bubble Flattening
After cooling, the bubble is collapsed using nip rollers or collapsing frames. This flattens the bubble into a flat sheet.
Winding
The flattened film is wound onto rolls, and it can be slit into smaller rolls or cut into sheets depending on the intended application.
Quality Control
During the process, various quality checks may be performed, such as measuring film thickness, monitoring temperature, and checking for defects or impurities.
Printing and Converting (Optional)
If the film is intended for printed packaging or specific applications, it may go through additional processes such as printing, laminating, or other forms of converting.
Components of HDPE Blown Film Machine
HDPE Blown Film Machine is mainly composed of extruder, machine head, die head, cooling device, foam stabilizing frame, herringbone plate, traction roller, take-up device, etc.
Extruder
The extruder is mainly composed of screw, barrel, hopper, reducer and drive motor; through the belt drive reducer, the reducer drives the screw to rotate in the barrel;The screw adopts a special structure, which is equipped with a special mixing device at a certain section of the screw.When working, it depends on the surrounding plastic to support centering. The axial force of the screw shaft is borne by the bearing between the reducer and the screw. To ensure the conveying capacity and stable extrusion quality.headThe machine head is composed of three parts: filter screen, filter plate and machine head gland. In order to adapt to the production of plastic materials containing more impurities, this unit adopts a right-angle head structure with a large filtration area, while considering high pressure, low pressure and mixing The material and the regenerated material have a large work viscosity, a reasonable choice is made for the design of the material flow path, and the filter motor is extruded by the drive motor of the extruder, so it can be adapted to a single screen change operation.
Die head
The die head adopts advanced spiral die head structure. Based on the special characteristics of high pressure, low pressure, mixed materials and recycled polyethylene materials, the main technologies such as helix angle, slope angle, fixed angle length, die opening and other main technologies are designed. The parameters are selected and optimized through multiple comparison tests. It has the advantages of large internal pressure, stable and uniform extrusion, good film strength performance, and good matching of the seamless line with the extruder of this unit. When the ratio of materials to recycled materials is used for blown film production, there is no need to replace the die head; various die heads can be prepared according to user needs, and the replacement operation can be completed by one person. It is simple, safe, convenient, and fast.
Cooling device
It is composed of cooling air ring, blower, etc. The cooling air ring is an externally cooled adjustable air ring, which can adjust the opening degree of the inlet tuyere. It is easy to operate and is conducive to the control of film thickness and uniformity.
Bubble stabilizer
This unit adopts adjustable ring and shaped rod adjustable structure to stabilize the bubble frame, the adjustment range is large, the operation is convenient to adjust, the bubble tube is stable, which creates conditions for the coiling tube to be flat.
Traction assisted machine
The auxiliary traction machine is composed of main components such as a traction frame, a herringbone plate, a traction roller, a winding mechanism and a traction motor. The traction motor of this unit adopts an electromagnetic slip type motor, which drives two pairs of traction rollers through the deceleration part and simultaneously drives the winding machine. The herringbone plate is fixed on the fixing frame under the traction roller, and the angle adjustment can be adjusted freely according to the blown thin specification. The two pairs of traction rollers are composed of rubber rollers and steel rollers, which can effectively prevent gas from escaping and ensure coiling. The traction frame adopts an assembled structure, which is convenient for disassembly and assembly, and is conducive to transportation and loading and unloading. The take-up device adopts an effective central take-up mechanism with constant tension. The device is driven by the sprocket to drive the friction plate, the friction plate drives the large gear, and then drives the take-up shaft, thus ensuring that the take-up diameter changes from small to large, and its friction force The size can be controlled by adjusting the spring force.Air compressionThe compressed air output from the air compressor and the storage tank enter the center hole of the spiral core rod of the die head through the outlet valve of the tank.The gas enters the center of the bubble tube through the center hole of the mandrel, and blows out the plastic to form a film in the shape of a bubble tube.
Electrical control
The electrical control is equipped with a unit operation cabinet. The main power button is used to switch on the main power and turn on the motor switch. The button and switch can be used to control the electric heating of the fuselage, tee and die, respectively. The key parts adopt thermocouple automatic temperature measurement and automatic temperature controller. In the normal production process, the temperature can be automatically controlled to ensure that the production process is stable, reliable.
Operating HDPE Blown Film Machine machine requires a good understanding of the process and the specific machine being used. Here are some general steps to follow when operating HDPE Blown Film Machine machine:
Preparation: Check that the machine is clean and all components are in good condition. Make sure the correct type and amount of raw material is loaded into the hopper.
Startup: Turn on the machine and start heating the barrel to the desired temperature. Monitor the temperature and adjust as necessary.
Extrusion: Start the extruder motor and monitor the output to ensure a steady flow of melted plastic. Adjust the extruder speed and pressure as necessary to maintain a consistent flow.
Bubble Formation: Adjust the air pressure and temperature to achieve the desired bubble size and shape.
Collapse: Adjust the nip roll pressure to control the final thickness of the film.
Winding: Adjust the winding speed to control the roll size and ensure a tight, uniform winding.
Quality Control: Regularly inspect the film for defects, such as holes, tears, or uneven thickness. Adjust the process parameters as necessary to maintain consistent quality.
It is important to follow the manufacturer's instructions and guidelines when operating HDPE Blown Film Machine machine. It is also important to regularly check and maintain the machine to ensure optimal performance and to avoid potential problems or damage.
Development of HDPE Blown Film Machine
With the rapid development of industrial science and technology, the blowing film machine has also mastered the skilled manufacturing process, but compared with the advanced technology level, there are still gaps in some aspects. If the film blowing machine is to achieve rapid development, then it must Absorb the advanced technology level, let the film blowing machine develop in a new direction.
A special fresh-keeping film blown out by the film blowing machine, using advanced technology, enables fruits and vegetables to be stored for a long time. This kind of cling film is composed of a nylon semi-wrapper transparent film. This film is almost transparent and has good water permeability. A certain amount of sand syrup is placed in the interlayer to gently wrap the surface of the object. This film It is necessary to ensure that the environment is not harmful, and at the same time, strong water permeability can absorb the moisture of fruits and vegetables to achieve the purpose of preservation.
This special raw material requires the HDPE Blown Film Machine to have high-end traction and drawing capabilities to ensure the toughness and breathability of the product film. Food packaging is the most applied field of film. The high-end film blown by the hammer can be used for product rated packaging promotion and increase commercial value. .
The blow molding industry, which is based on plastic film blowing machines, has a relatively large proportion in the market. However, as the requirements for the paper industry become more and more stringent, environmental protection and energy saving The new index has raised the threshold of the paper industry, resulting in the expansion of the cost of the paper packaging market and the increase in prices, which has increased the share of plastic packaging in the market, stimulated the development of the film blowing machine manufacturing machinery industry, and promoted the development of film blowing machines. Advance at a high level.
Our Factory
WISDOM MACHINERY is famous brand in the world, We are special in soft packaging& printing machinery, including stretch film making machine , film blowing machine,plastic bag making machine, flexo printing machine, recycling machine, slitting machine, filling machine etc.
Our Certificate
FAQ
Hot Tags: hdpe blown film machine, China hdpe blown film machine manufacturers, suppliers, factory
Previous
Pp Blown Film MachineYou Might Also Like
Send Inquiry