Twin Screw Extruder for High Filler Masterbatch Compounding- China Suppliers Manufacturers Factory

Nanjing JIEYA attend Chinaplas 2021 held in Shenzhen. We sincerely welcome your visiting.

Our booth no.: 7Q25

Time: April 13-16, 2021

Address: Shenzhen World Exhibition Center

Look forward to meet you at there.

Twin-screw extruders have barrels with an extension range of 4 and 6D, allowing for precise process design to meet specific customer requirements. All barrels allow for precise temperature control. Cooling is achieved by cooling water injection and high-performance electric heating rods for direct and fast heating. The auxiliary equipment of the twin-screw extruder consists of a straightening device, a preheating device, and a cooling and heating device. The following is a detailed description of the auxiliary equipment.

 

Here is the content list:

l Straightening device

l Preheating device

l Cooling device

 

Straightening device

One of the most common types of plastic extrusion rejects is eccentricity, and bending of the wire core in various patterns is one of the most important causes of insulation eccentricity. In sheath extrusion, scratches on the sheath surface are also often caused by the bending of the cable core. Therefore, a variety of extrusion units in the straightening device is essential. The main types of straightening devices are roller type (divided into horizontal and vertical type); pulley type (divided into single pulley and pulley group); stranded pulley type, which plays a variety of roles such as dragging, straightening, and stabilizing tension; pressure pulley type (divided into horizontal and vertical type), etc.

 

Preheating device

Cable core preheating is necessary for both insulation extrusion and sheath extrusion. For the insulation layer, especially the thin layer of insulation, the existence of pores should not be allowed, the core can be completely removed from the surface of the water, oil, and dirt through high temperature preheating before extrusion. For the sheath extrusion, the main role is to dry the cable core, to prevent the role of moisture (or moisture around the bedding layer) to make the sheath in the possibility of porosity. Preheating can also prevent the plastic from being extruded due to sudden cooling and residual internal pressure. In the process of extruding plastic, preheating can eliminate the cold line into the high-temperature heat, in contact with the plastic at the mouth of the die to form a disparity in temperature, to avoid fluctuations in plastic temperature and lead to fluctuations in extrusion pressure, to stabilize the amount of extrusion and ensure the quality of extrusion. Extrusion unit is used in the electric heating core preheating device, requires sufficient capacity, and ensures rapid temperature rise, so that the core preheating and cable core drying efficiency. The preheating temperature is restricted by the speed of wire release, generally similar to the temperature of the head.

 

Cooling device

The formed plastic extrusion layer after leaving the head should be immediately cooled and shaped, otherwise, deformation will occur under the action of gravity. The way of cooling usually uses water cooling, and according to the water temperature is different, divided into rapid cooling and slow cooling. Rapid cooling is the direct cooling of cold water, rapid cooling of plastic extrusion layer sizing is beneficial, but for crystalline polymers, due to sudden heat cooling, easy to internal residual stress in the extrusion layer organization, resulting in the use of the process of cracking, general PVC plastic layer using rapid cooling. Slow cooling is to reduce the internal stress of the product, in the cooling water tank placed in sections of different temperatures of water, so that the product gradually cool down and set, PE, PP extrusion on the use of slow cooling, that is, after hot water, warm water, cold water three cooling.

 

If you are engaged in a twin-screw extruder-related industry, you can consider our cost-effective products.

Jieya team wish you Merry Christmas and happy new year.

Thanks for old customers trust and support on our twin screw extruders machines. We always keep focusing on the quality and service. And hope to establish business relationship with all new customers. Enjoy your holidays, dear!

The composition of the single screw extruder: mainly consists of servo motor, reduction box, screw cylinder, nozzle head, filter air, heating and cooling system, touch screen, and SPS control. It is the extrusion host to form.

• What are the reasons why the main engine of the single screw extruder cannot be started and the solutions?

• What are the reasons and solutions for the high inlet flow of the single screw extruder?

• What is the design concept of the single screw extruder?

What are the reasons why the main engine of the single screw extruder cannot be started and the solutions?

1. Reasons:

(1) The driving program of the single screw extruder is wrong.

(2) There is a problem with the main engine thread and whether the fuse is blown.

(3) The locking device for the single screw extruder and the main engine works.

2. Treatment:

(1) Check the program of the insert extruder and restart in the correct order.

(2) Check the main engine circuit.

(3) Check whether the lubricating oil pump has started and check the status of the locking device concerning the main engine. The oil pump cannot be turned on and the engine cannot be turned on.

(4) The inverter has not discharged the induction current, turn off the main power supply and wait five minutes before starting.

(5) Check if the emergency button of the single screw extruder has been reset.

What are the reasons and solutions for the high inlet flow of the single screw extruder?

1. Reasons: (1) The single screw extruder has an insufficient heating time and a large torque. (2) A certain section of the heating does not work.

2. Treatment method: (1) Use the handwheel when driving the single screw extruder. If it is not easy, extend the heating time or check that the heaters of the individual sections work properly.

The main engine makes an abnormal noise:

1. Reasons: (1) Main engine stock damaged. (2) A specific SCR in the SCR DC power supply of the main engine is damaged.

2. Treatment method: (1) Replace the main engine stock of the single screw extruder. (2) Check the thyristor alignment and replace the thyristor component if necessary.

What is the design concept of the single screw extruder?

1. High-speed and high-Yield extrusion based on high quality.

2. The design concept of low-temperature plasticization ensures the extrusion of high-quality products.

3. The two-stage overall design of the single screw extruder reinforces the plasticization function to ensure the adjustment of the high-performance extrusion.

4. Special barrier, comprehensive mixing design to ensure the mixing effect of materials.

5. High torque drop, extra-large pressure bearing.

6. Gears and shafts are made of high-strength alloy steel, cooled, and chipped.

7. High hardness, high finish, extremely quiet.

8. PLC-intelligent control can realize the connection between main and auxiliary machines.

9. The easy-to-monitor human-machine interface makes it easy to understand the processing and machine status.

10. The control method (temperature device) can be changed if necessary.

11. The material is 38CrMoAL/A nitric treatment, wear-resistant.

12 Strict temperature control accuracy, combined with air cooling and water cooling.

13. The single screw extruder has a unique inlet design and complete water cooling.

14. An single screw extruder with a grooved surface of the lower shell has an improved feed function that guarantees a high speed and a high yield of extrusion.

The single screw extruder is increasingly used in industrial production.Nanjing JlEYA has committed itself to offering the best-suited single screw extruders at a reasonable price, and all that is necessary to meet the needs of the customer.

DRIVE SECTION
The drive section of the twin screw extruder consists of 3 parts: motor, clutch, and gearbox.
The reduction and distribution gear unit reduces the motor speed to the screw shaft speed and distributes the input torque to the two output shafts. Clutch is installed between the drive motor and the gearbox drive shaft.
PROCESSING SECTION
The processing section of the twin screw extruder in SHJ series extruder consists of individual barrel sections which are replaceable. Depending on the process tasks, reserve feed port, liquid injection port or twin screw side feed port is available.
Owing to the modular design of the twin screw extruder screw elements and screw barrels, conveying, plasticizing, homogenizing, pressure build-up and devolatilization zones can be established, depending on the process task.
For product intake and conveying, screw elements are used. The extruder can be fed with powder, pellets, chips, melt, paste, etc.
Plasticizing, mixing and dispersing are done by the twin screw extruder kneading elements. By varying the thickness of the kneading disks and their angle of stagger, their mixing, shearing and dispersing action can be adjusted to the individual requirements.
The screw elements are arranged on screw shafts. The co-rotating and closely intermeshing screw shafts have a sealing profile.  
The screw barrels are supported by barrel supports. Axial displacement of the processing section resulting from thermal dilatation is absorbed by these supports.
EXTRUSION PART
The discharge section of the twin screw extruder consists of die head and screen changer, which is installed at the end of twin screw extruder discharging direction. There are several types of die heads and screen changers to meet the requirements of different polymers and processing technology.

 

The main machine of the plastic extruder is the extruder, which is composed of an extrusion system, transmission system, and heating and cooling system. The following is a detailed description of the composition of the plastic extruder.

 

Here is the content list:

• Extrusion system

• Drive System

• Heating and cooling device

 

Extrusion system

A homogeneous melt is plasticized bypassing the plastic through the extrusion system, which consists of a screw, barrel, hopper, head, and die.

 

Drive System

The function of the drive system is to drive the screw, supplying the torque and speed required by the screw during the extrusion process, usually consisting of an electric motor, reducer, and bearings.

The manufacturing cost of the reducer is roughly proportional to its size and weight, provided that the structure is the same. Because the shape and weight of the reducer are large, it means that more materials are consumed in the manufacturing, and the bearings used are also larger, which increases the manufacturing cost.

For a similar screw diameter extruder, the high speed and high potency extruder consume additional energy than the traditional extruder, the motor power is doubled, and also the reducer seat range is raised consequently is critical，however a high screw speed means that an occasional reduction magnitude relation. For the same size reducer, the gear modulus of the low reduction ratio increases compared to the large reduction ratio, and the capacity of the reducer to bear the load also increases. Therefore, the rise in volume and weight of the reducer isn't linearly proportional to the rise in motor power. If the extrusion volume is employed because of the divisor and dividend by the burden of the reducer, the high speed and high potency extruder can have a smaller range and the normal extruder will have a larger number.

In terms of unit output, the small motor power and the small weight of the reducer of the high speed and high-efficiency extruder means that the manufacturing cost per unit output of the high speed and high-efficiency extruder is lower than that of the normal extruder.

 

Heating and cooling device

Heating and cooling are necessary to enable the plastic extrusion process to proceed.

(1) Extruders usually use electric heating, which is divided into resistance heating and induction heating, with heating sheets installed in each part of the body, neck, and head. The heating device heats the plastic inside the barrel from the outside to warm it up to the temperature required for the process operation.

(2) The cooling device is installed to ensure that the plastic is in the temperature range required for the process. Specifically, it is to exclude the excess heat generated by the shear friction of the rotating screw to avoid the plastic from decomposing, scorching, or shaping difficulties due to the high temperature. Barrel cooling is divided into two kinds of water-cooled and air-cooled, generally small and medium-sized extrusion machine using air-cooled is more appropriate, large is more water-cooled or a combination of two forms of cooling; screw cooling is mainly used in the center of water-cooled, the purpose is to increase the rate of solid material delivery, stabilize the amount of rubber, while improving product quality; but the cooling at the hopper, one is to strengthen the role of solid material delivery, to prevent the plastic grain sticky blockage because of the heating the second is to ensure the normal work of the transmission part.

 

If you are engaged in the industry related to the extruder, you can consider our cost-effective products. Our company is a leading extruder manufacturer specializing in a twin-screw extruder, micro twin-screw extruder, plastic extruder, and parallel twin-screw extruder in China.

The special refining effect and excellent performance of the single screw extruder have been proved in practice. Practice has proved that the reciprocating single-screw mixing extruder is a new type of plastic extrusion equipment. The emergence of single screw extruder provides a high-performance plastic processing equipment for the majority of users. Made a huge contribution to the development of the plastics industry.

• What is the function of the single screw extruder operation screen?

• What is the significance of the emergence of a single screw extruder?

• What are the application fields of single screw extruder?

What is the function of the single screw extruder operation screen?

The operating panel is installed above the single screw extruder and can be rotated within 60 degrees for easy operation. There is a power indicator and emergency stop button on the right side of the touch screen. In an emergency, press the emergency stop button to stop immediately, which is used to protect the safety of the operator and the single screw extruder. The data recording, parameter setting, operation control and other operations of the entire instrument are all completed in this operation screen.

What is the significance of the emergence of a single screw extruder?

In the process of polymer processing, in order to give the polymer certain processing characteristics or to give the product specific use performance, it is often necessary to blend different polymers or blend the polymer with various additives and pigments. The single-screw extruder has the characteristics of uniform shearing, high dispersion, high filling, and stretching of the melt. And it combines the advantages of single and twin screw extruders. The unique working principle, coupled with a complete set of threaded components and supporting equipment, makes it more widely used. On a single screw extruder, it can achieve mixing, Mixing, plasticizing, dispersing, shearing, stretching, degassing, and granulation make the interface area of the melt flow in the machine far larger than the general shear flow.

What are the application fields of single screw extruder?

The reciprocating single-screw mixing extruder is a new type of plastic mixing processing equipment, which is widely used in the filling, blending, modification, crosslinking, grafting, color masterbatch, functional masterbatch, and resistance of various plastics. Production of fuel masterbatch, conductive material, degradable masterbatch, reinforcement, toughening and other special plastic materials.

Blending different types of polymers to obtain brand new polymer alloys with specific uses.

Various mineral fillers are added to the polymer melt to make high-filling materials with excellent performance and low price.

Production of various glass fiber reinforced and flame retardant products, with the addition of glass fiber up to 50%.

It is suitable for the production of various cable sheathing materials, insulating materials, cross-linking materials, semiconductors, shielding materials, and conductive materials.

Production of thermoplastic elastomers and hot melt adhesives.

The single screw extruder is increasingly used in industrial production.Nanjing JlEYA has committed itself to offering the best-suited single screw extruders at a reasonable price, and all that is necessary to meet the needs of the customer.

The structure of the engineering plastic twin screw extruder barrel is basically similar to that of the single-screw extruder screw barrel. From the appearance structure, the twin-screw extruder barrel is also divided into an integral barrel and a segmented barrel. The engineering plastic twin screw extruder is an upgrade of the single screw extruder, which has also greatly improved the efficiency of use.

• What are the reasons why people choose engineering plastic twin screw extruder?

• What is the workflow of engineering plastic twin screw extruder?

• What are the essential devices in the engineering plastic twin screw extruder?

What are the reasons why people choose engineering plastic twin screw extruder?

1. Improve labor efficiency

When the equipment is repaired, engineering plastic twin screw extruder only needs to loosen a few bolts, turn the worm gear box handle device to lift the upper part of the barrel to open the entire barrel, and then perform repairs. This not only shortens the maintenance time, but also reduces the labor intensity.

2. High torque and high speed

The development trend of engineering plastic twin screw extruder in the world is towards high torque, high speed, and low energy consumption. The effect of high speed is high productivity. engineering plastic twin screw extruder belongs to this category, and its speed can reach 500 rpm. Therefore, it has unique advantages in processing high-viscosity, heat-sensitive materials.

3. Wide range of applications

engineering plastic twin screw extruder has a wide range of applications and can be applied to the processing of a variety of materials

4. High output, high quality

engineering plastic twin screw extruder has other advantages of ordinary extruder, and can achieve high output, high quality and high efficiency.

What is the workflow of engineering plastic twin screw extruder?

The engineering plastic twin screw extruder used for profile extrusion is usually tightly meshed and rotated in different directions, although a few also use co-rotating twin screw extruders, generally operating at a relatively low screw speed, about 10 r/ min. The high-speed meshing co-rotating engineering plastic twin screw extruder is used for compounding, venting or as a continuous chemical reactor. The maximum screw speed of this type of extruder is 300-600r/min. Non-intermeshing extruder is used for mixing, venting and chemical reaction. Its conveying mechanism is quite different from intermeshing extruder, which is closer to the conveying mechanism of single screw extruder, although there are essential differences between the two.

What are the essential devices in the engineering plastic twin screw extruder?

Among the straightening devices used in engineering plastic twin screw extruder, the most common one is eccentric, and various types of bending of the core are one of the important reasons for the insulation eccentricity. In sheath extrusion, scratches on the sheath surface are often caused by the bending of the cable core. Therefore, the straightening device in various engineering plastic twin screw extruder is indispensable. The main types of straightening devices are: drum type (divided into horizontal and vertical); pulley type (divided into single pulley and pulley block); winch type, which has multiple functions such as dragging, straightening, and tension stabilization; Press wheel type (divided into horizontal type and vertical type), etc.

The engineering plastic twin screw extruders are used more and more widely in daily life, but its quality has a great influence on the experience of use. Nanjing JlEYA has focused on the production and development of engineering plastic twin screw extruders for more than several years, and they have always put the needs of customers as their top priority.

Laboratory Lab Twin Screw Extruder Machine With Price , Find Complete Details about Laboratory Lab Twin Screw Extruder Machine With Price,Extruder,Lab Twin Screw Extruder,Laboratory Extruder from Plastic Extruders Supplier or Manufacturer-Suzhou Zf Active Technology Company Limited

Glass fiber application, RXT35, 35mm Extruder, PP,PA,PBT,POM,PET,ABS/PEEK with glass fiber or carbon fiber Company Introduction: CPM Ruiya Extrusion is one of China’s leading providers of twin screw extruders ...

As Pet Food Extruder Machine manufacturers had designed High Quality Twin Screw pet Extruders used for pet food and fish feed production, developed and tested. The major components of the machine included the feeder hopper, the conditioning chamber (can be choose), the barrel that was a screw member housing and the screw with the die and die …

Finproject Industries produce PVC plastic materials in various granular formats: rigid and plasticised PVC, in both compact and expanded versions, and formulated if required with phthalate-free plasticizing agents or …

The granulator making machines are responsible for a number of tasks in the production process. They improve the fluidity of fine powder, prevent the segregation of multi-component drugs, prevent dust from flying in production, and help maintain uniform pressure transfer during the production of tablet press.

Extruder Single-screw Lab Scale Precious Plastic Extruder Machine Small Twin Single Screw Extruder / Set. 1.0 Sets (Min. Order) 3 YRS CN. Supplier. 5.0 (17)

Parallel Twin-screw Extruder Manufacturers, Factory, Suppliers From China, For more information, please contact us as soon as possible! Tel: 86-512-36695758. ... Add: No.8 Plant, No.199 Jiguang Road, Qiandeng Town, kunshan, Suzhou City, Jiangsu Province, China. Parallel Twin screw Extruder. Home > Showroom > Parallel Twin screw Extruder.

Two Stage Recycling Extruder Machine. Product Price: Rs 75 Lakh / Unit Get Best Price. Product Brochure. Product Details: Material To Be Extruded. Plastic. Capacity. 800 kg/hr. …