Extrusion Blowing Machine

A: Before starting the blow molding equipment, it is necessary to add lubricating oil to all moving parts once. The manipulator, manipulator guide rail, mold opening and closing guide rail and swing arm of the equipment can be lubricated once every three to four days, and the large chain and small chain of the heater can be lubricated once a month. It is necessary to regularly check whether the main engine reducer and heater reducer of the blow molding machine are short of oil, and the main engine bearing can be added oil every three months. Before operating the blow molding equipment for production, it is necessary to check whether the moving parts are firm and whether the screws are loose.

A: In fact, there are many factors that will have a certain impact on the service life of the blow molding machine. For example, whether the blow molding machine is used in strict accordance with the correct application methods, operation processes and application specifications, the product quality and application frequency of the blow molding machine and other factors, which will affect the service life of the blow molding machine. However, the first is the application method of the blow molding machine. If the blow molding machine is used excessively for a long time, it will certainly lead to the failure and damage of the blow molding machine. In order to ensure the service life of the blow molding machine, it is also necessary to ensure the maintenance frequency of the blow molding machine in addition to correctly using the blow molding machine, which is conducive to ensuring the working efficiency of the blow molding machine.

A: When the raw material is plasticized and melted, the process temperature should be controlled within the range of 170-230 °C. The blown expansion ratio of the blank tube blow molded bottle product is controlled within the range of (1.5-3). The compressed air pressure of the expanded tube forming bottle product is 0.3 to 0.6 MPa. The mold temperature of the molding bottle is 20-50 ° C, and the cooling setting time accounts for 50%~60% of the total time of the product start production cycle.

A: When the machine is stopped, the speed is reset to zero.
The heating sections are closed section by section.
Close the mold, in a closed state, blow the needle half a centimeter away from the mold to prevent a hard object from falling into the mold and causing the damage.
Apply a rust inhibitor to the mold.
Turn off the main power supply, lubricate the equipment, and add lubricant.
Clean the whole machine and close the water in each part. If the downtime is long, the water inside the mold must be drained to prevent rust and blockage.

A: In order to prevent personal accidental injury, safety shields shall be installed on the transmission parts of all machines; safety doors shall be provided when the products are removed from the mold; the heating zone of the machine shall have safety and thermal insulation cover; the crusher shall prevent the steel from falling in and prevent The operator’s hand is extended into the internal protection device; emergency brake buttons and alarms shall be installed at key parts of the equipment; hydraulic pressure tests shall be carried out regularly for all pressure vessels. In the molding operation, if there are two or more operations, the division of labor must be clearly defined; when the equipment or mold is unloaded, the power supply and air source should be cut off, and the “maintenance” mark should be hung at the repair place; when the large container is produced, due to the mold cavity In order to prevent the human body from entering the mold cavity, protective measures should be installed for the safety door, the door is not closed, and the personnel can not close the mold without closing the mold; during the molding operation, do not perform high-temperature work such as welding and gas cutting near the machine head; When the vehicle is cold, the operator cannot stand under the machine head to prevent the overheated melt from splashing and injuring people; when the material is crushed, the power supply is cut off and the cover is opened for maintenance.

A: In order to prevent personal accidental injury, safety shields shall be installed on the transmission parts of all machines; safety doors shall be provided when the products are removed from the mold; the heating zone of the machine shall have safety and thermal insulation cover; the crusher shall prevent the steel from falling in and prevent The operator’s hand is extended into the internal protection device; emergency brake buttons and alarms shall be installed at key parts of the equipment; hydraulic pressure tests shall be carried out regularly for all pressure vessels. In the molding operation, if there are two or more operations, the division of labor must be clearly defined; when the equipment or mold is unloaded, the power supply and air source should be cut off, and the “maintenance” mark should be hung at the repair place; when the large container is produced, due to the mold cavity In order to prevent the human body from entering the mold cavity, protective measures should be installed for the safety door, the door is not closed, and the personnel can not close the mold without closing the mold; during the molding operation, do not perform high-temperature work such as welding and gas cutting near the machine head; When the vehicle is cold, the operator cannot stand under the machine head to prevent the overheated melt from splashing and injuring people; when the material is crushed, the power supply is cut off and the cover is opened for maintenance.

A: 1. Prevent Unplanned Downtime
Regular maintenance plays a crucial role in preventing unexpected breakdowns and costly production downtime. By adhering to a maintenance schedule, potential issues can be identified and addressed before they escalate into major problems. This proactive approach helps to minimize the risk of unscheduled downtime, ensuring smooth and uninterrupted production processes.
2. Quality Control
Maintaining consistent product quality is paramount in extrusion blow molding. Regular machine maintenance ensures that all components are in optimal condition, allowing for precise control of factors like temperature, pressure, and cooling. This, in turn, helps to achieve consistent product specifications and reduces the likelihood of defects or rejects.
3. Enhance Machine Performance
Regular maintenance enhances the overall performance of extrusion blow molding machines. This involves inspecting and cleaning components such as screws, barrels, molds and dies. Proper lubrication of moving parts and calibration of system settings help to optimize machine performance, resulting in increased productivity, energy efficiency, and lower production costs.
4. Safety Considerations
Ensuring the safety of operators and personnel working with extrusion blow molding machines is of paramount importance. Regular maintenance includes checking safety devices, electrical systems, and emergency shutdown mechanisms. By identifying and addressing potential safety hazards promptly, the risk of accidents and injuries can be significantly reduced.
5. Prolong Machine Lifespan
Extrusion blow molding machines are significant investments for manufacturing facilities. Regular maintenance can significantly extend the lifespan of these machines, maximizing the return on investment. By taking care of wear and tear, cleaning or replacing filters and seals, and conducting preventive maintenance tasks, the overall wear on the equipment is minimized, ensuring its longevity.

A: In extrusion blow molding a plastic material feedstock is fed through a hopper onto a feeding transfer screw. This feeds material into an especially designed blow molding die that directs the material flow to create an extruded hollow tube called a parison.

A: The extrusion blow moulding process can be broken down into two subcategories: Continuous extrusion blow moulding and Accumulator (Intermittent) extrusion blow moulding. In continuous blow moulding, the plastic is extruded constantly while the machine runs. With accumulator extrusion blow moulding, the extruder runs for a designated amount of time and flls a reservoir with plastic; after the reservoir has been flled, a ram is activated and pushes the material from the reservoir through the extrusion head.

A: There are various models of extrusion blowing machine from 1liter to max 100 liters, double station and single station for your choose with competitive price. The number of die heads of machine base on your production capacity and products size.

A: Traditional extrusion blow molding machines have a production capacity range from 1,000 to 20,000 bottles or jerrycans per hour while rotary wheel stretch blow molders have typical rates of up to 15,000-30,000 units/hour depending on size and application.

A: Fortunately, the right machine ensures a seamless extrusion blow molding process that yields outstanding finished products. While you expect this machinery to produce water and soda bottles, jars for various food products, containers for car oil, and so on, it can also create all types of more challenging shapes.

A: A typical extrusion plant will have a process load in the region of 0.4 to 0.6 kwh/kg (0.18-0.27 kwh/lb). Typical industry data for profile extrusion shows a base load of 30% of the average total energy use and a process load of 0.4487 kwh/kg (0.204 kwh/lb) of plastic processed.

A: Workers should always wear glasses and special gloves to handle the hot extrudate. No one should be standing directly in front of the machine on startup. Air and gas can be trapped in the cylinder or die and, as hot material is moving through, the barrel will occasionally spit out hot plastic.

A: Yes, customization allows manufacturers to adapt the extrusion blowing machine to a wide range of production needs and product specifications, providing flexibility and versatility in the manufacturing process.

A: Step 1: Install the die head. Start by installing the die head on the extruder. Step 2: Adjust the air ring. Step 3: Calibrate the temperature and speed controls. Step 4: Test the blown film machine.

A: The current market for large containers adopts rolling process. High energy consumption and high pollution.Moreover, the quality is poor and the product cost is high. Compared to rotational molding products, blow molding products have the following advantages:
1. Blow molding products have high strength;
2. Product weight can be reduced by 30%;
3. Manpower can be reduced by 50%;
4. The unit energy consumption is reduced by 68%;
5. The output increased by 70 times;
6. Safety, energy saving and environmental protection.

A: Innovative die head design, using advanced electromagnetic induction heating system.Safe and reliable, reduce heating time, control temperature accurately, save energy efficiently, improve efficiency, and save energy by 30%-50%. The control accuracy is within 30 degrees and it is absolutely safe.

A: The extrusion blow molding machine is to use the wind blowing from the machine to blow the plastic body to a certain shape of the mold cavity after spraying out the liquid plastic, so as to make a product. This kind of machine is called a blow molding machine. The plastic is melted and quantitatively extruded in a screw extruder, then formed by a die, and then cooled by an air ring, and then pulled by a tractor at a certain speed, and a coiler winds it into a roll.

A:Continuous Extrusion Blow Moulding:

Continuous extrusion blow molding is a seamless process where molten plastic is continuously extruded and shaped into a parison, a hollow tube-like structure. The parison is then molded within a two-part mold, creating the desired product. This method allows for a continuous production cycle, enhancing efficiency.

Applicability:

Ideal for high-volume production of simple shapes such as bottles and containers, continuous extrusion blow molding is a cost-effective solution with a rapid production rate.

 

Intermittent extrusion blow molding involves intermittently stopping the extrusion process to form the parison, making it suitable for more complex shapes. The parison is molded within the mold during each intermittent stop, enabling the production of intricate designs.

Applicability:

This method is well-suited for manufacturing products with complex geometries, irregular shapes, or multiple sections. It provides greater flexibility in design compared to continuous extrusion.

 

Extrusion-blow stretch molding involves stretching the parison lengthwise before inflation, resulting in improved material distribution and enhanced strength. This method is known for producing lightweight yet durable products.

 

Widely employed in the production of containers for beverages, personal care products, and automotive components, extrusion-blow stretch molding is favored for its ability to create thin-walled containers with excellent performance characteristics.

A: Advantages

Revolutionary – The extrusion method of creating plastic products revolutionized manufacturing technology, giving different industries a viable solution.

Output – With high-volume output, this machine can produce a vast number of finished bottles and containers.

Diversity – A machine used for extrusion blow molding can produce a variety of products used by food and beverage, medical, manufacturing, pharmaceutical, and other industries. The ability to produce products for diverse applications makes this process highly advantageous to others.

Low Cost – Thanks to advances in machines used for this process, it costs manufacturers less to produce stellar products. For one thing, newer machines require less energy. Also, using a low level of pressure helps lower the cost of the machinery and its operations.

Automation – Now as an automated method of production, the amount of wasted polymer is less. Also, automation increases productivity and ensures greater precision.

 

Petroleum Dependency – Machines used for extrusion blow molding as a means to produce plastic products require a significant amount of petroleum, threatening to diminish the oil supply.

Limited Capability – This type of machine produces hollow plastic bottles and containers. Although widely used by multiple industries, there are some limitations.

Environmental Impact – In addition to the fact that this machining process depends on millions of gallons of petroleum, it produces plastic, which is a non-biodegradable material. For those two reasons, the process has a negative impact on the environment.

A:The extrusion blow molding process has become very common in manufacturing, let's look at some industries and pay attention to the products and parts they use every day.

Automotive industry – Many of the parts storing fluids use blow molding. Cooling system overflow containers, windshield washer fluid bottles, and even fuel tanks are commonly made with blow molding.

Appliance components – Your major appliances at home include reservoirs that contain fluids and help to wash your clothes and dishes. These are commonly made via blow molding.

Medical supplies and parts – If you've been to a health clinic, your dentist, or to visit your family doctor you can quickly start counting how many hollow containers are used. Spray bottles, water bottles, and storage containers line the cabinets.  All of those are quickly made with blow molding.

Children's toys – If you have a small child, you could quickly count how many hollow lightweight toys they have. Blocks and squeeze toys are common uses for blow molding.

Lawn and garden items – You could almost put lawn and garden into the automotive and bulk container categories as it uses bottles for liquid products and uses blow molding for mowers and power equipment for fuel tanks, oil storage and distribution.

Marine – Products that go in the water need to be buoyant, and blow molding makes hollow products with ease. Reservoirs, buoys, and other items are commonly made with blow molding.

Packaging – Customized packaging with Polystyrene keep products safe, and blow molding makes hard to create shapes with ease.

Sporting Goods – A common blow molded product in sporting goods is a plastic bat, a plastic ball, or another hollow piece of equipment.

Industrial bulk containers – Think of larger fluid containers like barrels to transport and store water, oil, or anything else liquid. Those are made with blow molding.