7 functional characteristics of plastic sheet machine

The plastic sheet machine is suitable for high-speed dehydration of various plastic particles, plastic sheets and other items. It is innovated and improved on the basis of the traditional plastic dehydrator, which is convenient to feed and fast to dehydrate, and is an ideal equipment for dehydration and drying of various plastic sheets and plastic granules. The functional characteristics of the plastic sheet machine are as follows: 1. The plastic sheet machine is made of high-quality materials, and two models of 304 stainless steel dehydrator and carbon steel economic dehydrator can be selected. 2. The inner liner of the plastic sheet machine is made of high-quality imported 304 stainless steel, which is not afraid of acid and alkali corrosion, and has strong wear resistance. 3. The dehydration efficiency of the plastic sheet machine is high, it can quickly dry the moisture contained in the material, the dehydration effect is good, and the output of the dehydrator can reach 1000-1200kg/h. 4. The plastic sheet machine is equipped with a motor overload and power interlocking protection system to ensure the safety of the dehydrator operation. 5. The humanized design of the plastic sheet machine is simple to operate, and can be operated by one person independently. 6. The plastic sheet machine adopts a motor of all copper wire famous factory, and the motor power is 5.5-30kw, with strong power and long service life. 7. The spindle speed of the dehydrator is 760-1200 rpm.

Causes and solutions to common failures of plastic extruders

In the process of long-term use of plastic extruder, it is inevitable that there will be various failures, which will affect the normal production and processing. Below, we will analyze some common faults of plastic extruders and give solutions to them, hoping to help you. The current of the main extruder is unstable 1. Causes: (1) Uneven feeding. (2) The main motor bearing is damaged or poorly lubricated. (3) A certain section of heater fails and is not heated. (4) The screw adjustment pad is wrong, or the phase is wrong, and the component interferes. 2. Treatment method: (1) Check the feeder and troubleshoot. (2) Overhaul the main motor and replace the bearing if necessary. (3) Check whether the heaters are working normally, and replace the heaters if necessary. (4) Check the adjustment pad, pull out the screw to check whether the screw interferes. The main motor cannot be started 1. Causes: (1) There is an error in the driving procedure. (2) There is a problem with the thread of the main motor, whether the fuse wire is burned. (3) The interlocking device related to the main motor works 2. Solution: (1) Check the procedure and start again in the correct driving order. (2) Check the main motor circuit. (3) Check whether the lubricating oil pump is started, and check the status of the interlocking device related to the main motor. The oil pump won't turn on, and the motor won't turn on. (4) Check whether the panic button is reset. (5) If the inverter induction power is not exhausted, turn off the total power supply and wait for 5 minutes before starting. The head discharge is not smooth or blocked 1. Causes: (1) A certain section of the heater does not work, and the material is not plasticized. (2) The operating temperature setting is low, or the molecular weight distribution of the plastic is wide and unstable. (3) There may be foreign matter that does not melt easily. 2. Treatment method: (1) Check the heater and replace it if necessary. (2) Verify the set temperature of each section, and negotiate with the technician if necessary to increase the temperature set value. (3) Clean and inspect the extrusion system and machine head. The main electric starting current is too high 1. Causes: (1) Insufficient heating time and large torque. (2) A certain section of heater does not work. 2. Treatment method: (1) When driving, the hand disc car should be used, if it is not easy, extend the heating time or check whether the heater of each section is working normally. The main motor makes an abnormal sound 1. Causes: (1) The bearing of the main motor is damaged. (2) A thyristor in the thyristor rectifier line of the main motor is damaged. 2. Solution: (1) Replace the main motor bearing. (2) Check the thyristor rectifier circuit and replace the thyristor components if necessary. The temperature rise of the main motor bearing is too high 1. Causes: (1) Poor bearing lubrication. (2) The bearing is seriously worn. 2. Causes: (1) Check and add lubricant. (2) Check the motor bearing and replace it if necessary. The pressure of the head of the plastic extruder is unstable 1. Causes: (1) The speed of the main motor is uneven. (2) The speed of the feeding motor is uneven, and the feeding amount fluctuates. 2. Solution: (1) Check the main motor control system and bearing. (2) Inspect the feeding system motor and control system. The lubricating oil pressure of the extruder is on the low side 1. Causes: (1) The pressure setting value of the pressure regulator of the lubricating oil system is too low. (2) The oil pump is faulty or the suction pipe is blocked. 2. Treatment method: (1) Check and adjust the pressure regulating valve of the lubricating oil system. (2) Check the oil pump and suction pipe.

The impact of the renewable features of plastic pelletizing equipment on the environment

Environmental protection is advocated by the state, and more and more attention is paid to the protection of the environment. Plastic granulation equipment is a good helper of environmental protection equipment, and know that plastic granulation equipment is one of the necessary equipment for recycling and granulation of waste plastic products, plastic granulation equipment can crush all kinds of plastics, such as woven bags, agricultural films, handbags, greenhouse cloth and other products into small pieces, short filaments, and clean and remove the dust and impurities at the same time as the plastic granulation equipment is crushed, so as to obtain a cleaning effect. At the same time, the plastic pelletizing equipment can meet the environmental protection requirements of waste plastic recycling at home and abroad. Waste dirty agricultural films, waste packaging materials or hard plastics can be well disposed of in plastic pelletizing equipment. In addition, the whole plastic pelletizing equipment production line is simple and effective, and this design makes the reasonable price of the assembly line very popular at home and abroad. Therefore, plastic pelletizing equipment is a good helper for environmental protection in our lives. The "white pollution" caused by plastic packaging has had a negative impact on China's economic development and ecological environment. In order to solve the problem of "white pollution", the government, enterprises and the vast number of scientific and technological workers have done a lot of work. The state has also introduced many policies, but unfortunately many measures have had little effect. restricting and disabling makes people feel inconvenient; Fees will increase the burden on the public. Facts have proved that modern society has been inseparable from plastics, since the ban can not be implemented, only with better performance-to-price materials, with more in line with the characteristics of the times of technology and methods for the development of degradable plastics, increase the recycling of plastic waste, in order to improve the direct pollution of plastic packaging to the environment. Direct recycling of plastic pelletizing equipment. Direct recycling mainly refers to the process of making recycled plastic products by adding a certain amount of new resin or appropriate compounding agent (such as antioxidants, lubricants, stabilizers, plasticizers, colorants, etc.) after pre-treatment and crushing, and then molding or pelletizing. It can use existing technology and equipment, which is both economical and efficient. The general process of direct recycling is: pretreatment (sorting, cleaning, deaeration, etc.) to crushing to washing and stirring to mixing and homogenization to plasticization to granulation or re-product molding.

What is the reason for the instability of the plastic extruder?

Plastic extruders are widely used and play a very important role in actual production. However, if not properly handled, or if regular maintenance is not performed, plastic extruders can cause a variety of problems. Today we will talk about what is the reason why the plastic extruder discharge is unstable and even does not eat in the production process. When the extruder does not eat materials, we must first rule out whether the configuration of the plastic extruder can meet the production of our products. Due to the different plastic materials, the length-diameter ratio of the plastic extruder screw and the pressure required for screw extrusion are different during production. This is a fundamental factor that we must eliminate. Then, it is to see whether the size of the product produced by the extruder matches the model of the plastic extruder. Each model of plastic extruder has a suitable equipment extrusion capacity, in the production of plastic extruder model is large, the product is small, so the extrusion pressure will be too large and will cause the equipment not to eat. Another is whether the temperature setting of the plastic extruder is reasonable, the temperature of the plastic extruder is a very important factor in production, and we must refer to the plasticization value required by the raw materials and the previous production experience when setting the temperature.

The influence of the development of plastic machinery such as sheet machines

With the rapid development of the economy, the continuous improvement of people's living standards, people's pace of life continues to accelerate, which prompts people's demand for convenient and efficient supplies continues to increase, and disposable plastic products even if the product of the rapid development of the times, its convenience and efficiency for the fast-paced life has brought convenience, the reason why disposable plastic products can be in rapid development, bring convenience to our lives, but also benefit from the rapid development of plastic machinery and equipment such as sheet machines, laying a solid foundation for the development of disposable and convenient plastic products. Sheet machine is a kind of plastic machinery and equipment composed of main engine, screen changer, mold, tablet press, conveyor table, traction machine and winder and other components, with precise structure, stable performance, and the interaction of various components to achieve efficient production of sheet machine, and the raw materials that can be processed include PP, PE, PS, etc., which are used in various fields. Sheet machines and other plastic machinery and equipment have excellent properties such as manufacturability, functionality, and stability. The efficient development of plastic machinery and equipment such as sheet machines has contributed to the development of the industrial economy, and has brought convenience to the convenient life of human beings. All in all, the development of plastic machinery and equipment such as sheet machines plays an important role in the industrial economy and human life.

Plastic sheet extrusion is a technological product of the 21st century

Plastic sheet extrusion molding machine is a set of sheets, extrusion and molding as one of the plastic products production equipment, with many varieties, fast production efficiency, strong applicability, output ratio, economical, a machine multi-purpose and other performance characteristics, plastic sheet extrusion molding machine is suitable for all polymer materials, the production of plastic products including pipes, plates, sheets, films, cables and a variety of profiles and other plastic composite products.

Principle of single screw extruder

The single screw is generally divided into three sections in the effective length, and the effective length of the three sections is determined according to the diameter of the screw, the pitch and the depth of the screw, and generally accounts for one-third of each. The last thread of the material mouth began to be called the conveying section: the material is required to not be plasticized here, but it must be preheated and compacted under compression, in the past, the old extrusion theory believed that the material here is a loose body, and later proved that the movement of the material here is similar to a solid piston, so as long as the conveying task is completed, it is its function. The second section is called the compression section, at this time the volume of the screw groove gradually decreases from large, and the temperature should reach the degree of plasticization of the material, where the compression is generated by the conveying section three, here the compression to one, which is called the compression ratio of the screw - 3:1, some machines also change, and the plasticized material enters the third section. The third section is the metering section, where the material maintains the plasticization temperature, but the melt material is conveyed accurately and quantitatively like a metering pump to supply the machine head, and the temperature cannot be lower than the plasticizing temperature, which is generally slightly higher.

Direct recycling of plastic pelletizing equipment

Environmental protection is advocated by the state, and more and more attention is paid to the protection of the environment. Plastic granulation equipment is a good helper of environmental protection equipment, and know that plastic granulation equipment is one of the necessary equipment for recycling and granulation of waste plastic products, plastic granulation equipment can crush all kinds of plastics, such as woven bags, agricultural films, handbags, greenhouse cloth and other products into small pieces, short filaments, and clean and remove the dust and impurities at the same time as the plastic granulation equipment is crushed, so as to obtain a cleaning effect.