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18

2023-01

Explain the advantages of casting film machines in detail?

With the continuous progress of science and technology, various industries have also achieved great development. The development prospects of the casting film machine are also very good, so the demand is constantly increasing, and there are also many manufacturers on the market. As manufacturers, it is also necessary for us to explain the advantages of the casting film machine here. The casting film machine is suitable for blowing biodegradable raw materials based on biodegradable substrates such as PBAT and PLA. With the enhancement of environmental awareness and the implementation of new speed limit regulations, plastic bags made of various biodegradable substrates are becoming the mainstream in the market. The equipment has good physical performance, high output, and good uniformity of blowing film. The wind ring adopts high-quality two channel or three channel wind rings. Motors, reducers, and low-voltage electrical appliances are all high-quality brands. Casting film machines have been very popular in recent years. Although the price is slightly higher, it can ensure good practicality. The main thing is to improve overall work efficiency, reduce manual work steps, especially to some extent control costs, and produce high-quality products every day. The casting film machine is very active in the industry, but it must be said to be the mainstream in the current mechanical industry, with high cost-effectiveness and difficult to eliminate. When the casting film machine is working, it is actually very practical and easy to understand. It is all integrated operation, and production can start with pre-set settings. You only need to learn some operating methods to use the equipment. And as you can see, many brands have detailed instructions that can be directly operated. A more practical casting film machine can also improve production efficiency without the need for complex operations, and of course, everyone can use it. For some large manufacturers, of course, such products are also a good choice. In short, the casting film machine is cost-effective and easy to maintain. Moreover, the manufacturer has effectively utilized advanced technology during production, making it easy to operate and improving the manufacturer's efficiency. The price of this type of automation equipment is not very high, and if you directly cooperate with the manufacturer, you can enjoy certain discounts. Moreover, this type of device is relatively easy to maintain and also has a self checking function. Once a malfunction occurs, an alarm will appear. Of course, there is no need to worry about safety issues and it is worth choosing.

2023-01-18

09

2023-01

Introduction to the working principle of casting film machine

During the operation of the casting film machine, the slurry flows out from the machine head and falls onto the cooling roller, which cools the slurry and forms the initial shape. The cooling roller rotates clockwise to drive the initial formed film to rotate, and the air knife enables the film to tightly adhere to the cooling roller. The initial thickness of the film is controlled by adjusting the gap between the scraper and the cooling roller. The film treated by the scraper enters the heating and drying section to remove moisture and achieve the purpose of heating the film, Next, the film enters the stretching section. As the rotational speed of the stretching section is different from that of the cooling roller, the film is stretched. The nozzle allows the film to cling tightly to the conveyor belt. The second scraper compresses the film again, making its quality better. Then, the film is rolled into a tube through the winding mouth. What are the precautions for using a casting film machine? 1. Operators should wear necessary labor protection equipment, such as canvas gloves, work clothes, and work hats, and their arms should not be exposed. 2. Before starting each time, check whether the screws in the rotating and driving parts of the instrument are tightened, whether the cooling water in the neck of the casting machine is turned on, and it is strictly prohibited to start the casting machine motor without water Before the motor of the casting film machine can be started, there should be a sample in the hopper. It is strictly prohibited to idle the casting film machine motor without any materials. 4. When the casting film machine and mold are operating at high temperatures (temperatures above 200 ℃), it is important to take safety precautions and operate with caution to avoid scalding accidents. Before pulling the film, open the cooling water and refrigeration system device of the roller, and ensure that the inlet water temperature of the refrigeration technology device is less than 30 ℃. 6. Film stretching is a manual operation between transmission devices. Pay attention to safety protection during operation to prevent hands from being caught by the transmission system device. In the event of an accident, the emergency stop button should be immediately activated. After handling the unexpected situation, press the reset button to turn on the machine. 7. Do not use emergency devices (emergency stop buttons) to stop the equipment during normal use. 8. Use hard metal materials (such as stainless steel) to contact the surface of the cold rolling roller and the mold lip to avoid scratching the surface. What are the operating steps of a casting film machine? Check if there are any issues with the power supply, temperature, and cooling water. Turn on the power supply, start the casting film machine, set parameters, and when the temperature and other parameters remain unchanged, add materials to the hopper. Start the screw, and plastic particles enter the machine barrel through the hopper. After being plasticized by heat and shear force, they melt into a flowing state. Under the push of the screw, the melt is extruded from the mold head through various heating sections at a certain pressure and speed. Then, by adjusting the thickness of the membrane lip, the desired thickness of the membrane can be made. After the material information flows out, lock a workstation, start the cold roller, adjust the position of the air knife, and start the traction roller and coiling roller. The membrane is pulled by the driven roller, tension roller, and traction roller, and then wound on the winding roller. The parameters are adjusted again until a suitable membrane is obtained and the device is closed.

2023-01-09

22

2022-06

The Role of Environmental Protection Equipment in Casting Film Machine

The casting film machine, also known as the casting film rolling oil heater or the casting film rolling electric oil furnace, is a specialized mold temperature controller for the hot forming of casting film rolling plastic. Suitable for temperature control equipment of PET casting film, PVC casting film, PP casting film, EVA casting film, multi-layer co extrusion casting film line and roller. There are usually two types of casting film roller mold temperature machines: water temperature machine and oil temperature machine. The sheet material used for processing plastic thermoformed packaging products through "casting" is called "casting" thermoformed sheet material. At present, the processing situation of domestic plastic hot formed sheets is that the "rolling method" extrusion hot formed sheets are mostly processed on domestic equipment, while the "rolling method" extrusion hot formed sheets are mostly processed on imported sheet production lines. Most of the extruded hot formed plates are processed on special casting lines in Taiwan. Now, with the progress of domestic sheet processing technology and the improvement of sheet technology, some sheet production lines in China can also use "rolling method" and "rolling method" to process qualified plastic hot formed sheets. Casting film is the process of extruding plastic melt that is hot melted in an extruder through a rotating die (tubular film method) or a T-shaped die (flat film method), and then the casting film machine senses it. Adjustable temperature reaches the preset temperature value, which can improve the molding efficiency; Reduce the generation of defective products; Improve appearance and prevent defects; Accelerate progress, reduce energy consumption, and save energy Casting film machines are also environmentally friendly, solving problems encountered during the process, such as difficulty in temperature control, long cooling time, low efficiency, and poor quality. Many unqualified issues. This is just the casting film rolling industry. In other plastic industries, mold temperature machines also have temperature control functions and are indispensable auxiliary equipment in the plastic industry. The main function of the casting machine in the extrusion process of the casting film is to eliminate impurities in the melt and improve the physical and chemical properties of the casting film. 2. Divide and recombine the melt, further plasticize and mix, promoting the dispersion and uniformity of the blend system. 3. Establish appropriate melt pressure, eliminate gas from the material, improve the density of the melt, and prevent diaphragm holes and pores. Performance requirements for cast film: The cast film has multiple functions, high requirements, and harsh processing conditions. Only those with superior performance can meet the needs of cast films. The specific requirements are as follows: 1. Fine filtration, without the escape of impurities. 2. The flow channel has no stagnant zone or dead angle, and the material does not undergo overheating degradation. 3. When replacing the filter screen, the material flow is stable, the temperature fluctuation is small, and it can ensure long-term continuity without generating waste or defective products. 4. The price of the filter is low, and one-time use does not generate secondary cross contamination. 5. The network switching operation is simple and easy to operate, saving labor and effort. 6. High temperature resistance, high pressure resistance, and no leakage. 7. Stable performance, reliable operation, and low application cost.

2022-06-22

15

2020-09

High speed casting machine: the core concept of mechanical equipment design for casting machines

High speed casting machines are increasingly favored by customers, and their excellent characteristics are closely related. Compared with traditional PE casting film machines, their price advantage is very significant. So what is the relationship between them? Are there any differences? This is mainly to better differentiate design concepts.

2020-09-15

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