Blown Film Machine——Ultimate Guide
1.What is Blown Film Machine？
What does a blown film machine do?
As the name implies, a film blowing machine is a machine for blowing film. It is a plastic production machine. There are many types of film blowing machines, including PE, PC, PVC, etc. Different types of films can be blown into different types by adding different types of particles. It can be made into greenhouse films, food packaging bags, express bags and other different products.
2.Blown Film Machine Type
Following are some types of film blowing machines：
Five-layer co-extrusion
Seven-layer co-extrusion
Nine-layer co-extrusion
Eleven-layer co-extrusion
ABC Three-layer co-extrusion
AB Double-layer co-extrusion
Mono layer
High speed mono layer
Mini type high speed mono layer
ABA Three-layer co-extrusion
Double-head ABA
3.How does Blown Film Machine work?
What is the principle of Film Blowing?
The dried plastic particles are placed in a barrel, hot-melted, extruded, and blown to form a film.
How efficient is the production output of your blown film machines, and is the operation user-friendly?
Different models have different production efficiencies, and the output depends on the configuration selection. For example, adding an IBC internal cooling system will increase the output by 30-40%.
Whether the operation is convenient is also determined by the selected configuration. Therefore, there are many uncertainties in the film blowing machine, and each component can determine the ease of operation of the machine. For example, in the screen changing device, manual quick screen changing is the most convenient and labor-saving one. The device does not need to stop, and the screen can be changed manually to complete the operation.
How long can your blown film machine work continuously?
The film blowing machine can be operated continuously and only needs to be stopped for maintenance. If maintenance is not considered, it can continue to work.
Do you kown:Main Components of a Blown Film Machine?
The main components of the film blowing machine include motor, inverter, reducer, screw, screen changing device, mold, air ring, bubble stabilizing frame, herringbone plate, upper traction, upper rotation, winding, guide roller, corona device, etc.
Common Problems during PE Film Blowing ProcessPE
The most common problems encountered by film blowing machines during the film blowing process include uneven thickness of the film bubble, wrinkles, poor film transparency, many fish eyes, unstable film bubble shaking, shark skin, etc.
4.What is the Blown Film Machine Used for?
Types of Blown Film Machine and their applicable fields
Film Extruder Machine Application
The application fields of film blowing machines are very wide, such as food packaging, logistics, medical structures, family farming, pharmacy, transportation, health, electronics, automation engineering, chemical industry, etc.
5.Raw Materials that can be used for Blown Film Machine
What are the Raw Materials Used in a Blown Film Machine?
Introduction of Blown Film Raw Materials
Plastic particles are divided into new materials and recycled materials. New materials are LDPE, HDPE, LLDPE, MLDPE, EVOH, PA nylon, EVA.
Recycled materials are divided into four categories: Class 1 and Class 2 are used for blown film, and Class 3 and Class 4 are used for injection molding.
|
|
6.Configuration of Blown Film Machine
What is Blown Film Corona Treatment?
Corona treatment devices are mostly used for products that need to be printed later and can remove static electricity.
What is Blown Flim Take-Up Unit (Haul-Off)
The function of the traction device is to pull the film upwards, which can control the film thickness and prevent film bubble leakage. The next is the winding device, which is used to bend the film into a roll.
What is Blown Flim IBC System
The full name of IBC is internal bubble cooling. The working principle of the IBC internal cooling system is to detect the width of the film through three ultrasonic probes, suck out hot air, blow in cold air, and quickly cool the film bubble temperature. Its functions are:
(1) Control the size and width of the film bubble
(2) Cool the inside of the film bubble
(3) Increase the output by 30-40%
(4) Improve the brightness and toughness of the film
(5) Replace the air inside the film bubble and eliminate odor
7、What are the advantages of blown film extrusion?
The method used by the film blowing machine is film blowing extrusion, which is a robust and efficient way to produce films. The produced films can be used in most fields, such as food, clothing, textiles, fungus cultivation, daily necessities and other civil and industrial products for internal and external packaging. Compared with the traditional simple extrusion process, film blowing extrusion has many advantages.
① The strength and flexibility of the film extruded by film blowing will be better: The film blown by the film blowing machine is both tensile and softer, and has greater strength, and can adapt to various shapes and specifications of packaging design.
② More application areas: Because the film extruded by film blowing is of high quality, it can adapt to the production of most packaging, such as food, industrial, agricultural film, etc. In addition, customized films can be more suitable for this industry.
③ Customized design makes the application more flexible: Manufacturers can customize specific films according to the film thickness, width, and performance they need. We can customize his exclusive film blowing machine according to the final product produced by the manufacturer.
8、How to Choose the Blown Film Machine?
Flexible Design for Plastic Film Producers-Customized Blown Film Machine
Nowadays, there are many types of film blowing machines. Choosing the right film blowing machine can more effectively improve production efficiency and create better value for you. Customized machines are becoming more and more popular nowadays. Tell me your needs and I will help you choose the most suitable machine for you!
1. If customers want to produce smaller sizes (such as supermarket bags, garbage bags, etc.), they can choose a single-layer film blowing machine. In addition, the mini film blowing machine is price-friendly, with low maintenance costs, low initial investment, and short payback period. In addition, the operation of the single-layer film blowing machine is relatively simple, easier to learn, and reduces the learning cost of personnel.
2. At present, the market environment has more and more special requirements for packaging films, and multi-layer co-extrusion film blowing machines are needed at this time. Our factory provides high-quality multi-layer co-extrusion film blowing machines with three layers, five layers, and even up to eleven layers. Multi-layer film blowing machines are generally equipped with IBC film bubble internal cooling system, ±360° horizontal upper traction rotation system, photoelectric automatic deviation correction device, automatic thickness gauge, fully automatic winding and film tension control, computer screen automatic control system and other advanced technologies. Compared with the same type of equipment, the machine equipped with advanced options has the advantages of higher output, better plasticization, uniform thickness, low energy consumption, and easy operation. It better solves the problems of uneven film thickness and winding ends, and improves the final film quality to a new level. This film has good barrier properties, freshness preservation, moisture resistance, frost resistance, oxygen isolation, and oil resistance, and can be widely used in light and heavy packaging. Such as various fresh fruits, meat products, pickles, fresh milk, liquid beverages, medical supplies, etc.
9、Blown Film Machine’s Price
Blown Film Machine’s Price Determinants
The price of film blowing machines is affected by many factors, including materials, sizes and specifications, production processes and production technologies. In addition, the prices of various optional devices are also different. IBC internal cooling device, upper rotating device, fully automatic thickness measurement system, automatic air ring and other configurations can improve the quality and production capacity of the film, and at the same time, the price will increase accordingly. In addition to the configuration being a factor in determining the price, the brand is also an important factor in determining the price. Compared with Chinese brands, foreign brands are more expensive. As a manufacturer, we will choose the configuration that is suitable for production needs based on understanding various factors. While ensuring quality, control costs and improve production efficiency as much as possible.
10、The Difference between Blown Film Machine and Blown Mold Machine
Many people who are new to the plastics industry are still unclear about the difference between film blowing machines and blow molding machines. It is very important for newcomers to distinguish between film blowing machines and blow molding machines.
Film blowing machines are used to make plastic films. After the plastic is extruded through the die head, it is stretched by a traction machine and cooled to obtain a tubular film. Generally, manufacturers of plastic bags, agricultural films, fresh-keeping bags, etc. will purchase film blowing machines.
Blow molding machines are generally used to make containers. Plastic containers such as bottle blanks are blown up in the mold to obtain the required containers.
This is the main difference between film blowing machines and blow molding machines. You can purchase according to your needs!