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23

2023-11

Introduction to the more standardized operation process of bag making machine

The standard operation of the bag making machine is as follows: 1. Preparations before starting ① Check whether there is dust and debris around the device, and remove it. ②Finish the film roll according to the requirements of the production notice. ③ Adjust the size of the bag according to the production notice and process documents, install the heat sealing knife, and adjust it initially. ④Position of slitting knife and heat sealing knife. ⑤Turn on the power and set the temperature of the heat sealing knife according to the requirements of the process documents. ⑥Enter the relevant data of bag making and the required number of each pie. ⑦Select the pattern edge with large color difference to adjust the light-eye sensitivity to the left and right to make it meet the requirements. 2. Power on ① Start the main motor, run at low speed, then adjust the side position control, and split the membrane in the middle position. ②Adjust the left and right nip rollers to align the left and right films, and adjust the front and back nip rollers to align the pattern. ③ Adjust the heat sealing knife so that it is heat sealed within the required range of the bag. ④Adjust the cutting blade to the desired position, and adjust the punching position to the scissors mouth. ⑤ Initially adjust the machine speed, take a flat sample bag for initial inspection. ⑥ During the production process, observe the bag-making situation at any time and find that it is abnormal, and adjust it immediately. 3. Shutdown Turn off the main power switch, and then turn off each part of the power switch.

2023-11-23

07

2023-02

Precautions for operation of casting film machine

The casting film machine uses particles about the same size as rice, which can be ground, heated and melted during operation. The plastic film is made according to the required size, and the finished product is evenly colored, clean, and the bag is well stretched. What are the operating precautions for the downstream film spreading machine? When operating the casting film machine, it is not allowed to stand directly in front of the machine to avoid accidental injury to operators. Strictly prevent metal impurities, small tools, and other solid objects from entering the raw material during feeding, which may fall into the material barrel and damage the machine. Do not wear gloves when operating the casting film machine to avoid injury. Then there is the inspection and addition of lubricating oil for the reducer and air compressor, as well as the inspection of the lubrication of the transmission machinery. Avoid dry operations to avoid damaging the machine and generating noise. When connecting, it is necessary to first check the power cord for any breakage or leakage, and check if there is any abnormal damage to the casting film machine. Before starting the machine, confirm that all components are normal and standardized to avoid affecting production and causing accidents. Especially within the limitations of film forming conditions, increasing the film forming temperature, cold air temperature, and air filling rate will increase the turbidity of the paint film and reduce its glossiness, otherwise it will increase. When the material to be used appears uniform from the rod, wear gloves and slowly pull the tube blank. At the same time, close the empty end of the pipe, gently insert the air inlet control valve, put a small amount of compressed air into the spindle hole, and then carefully pass the foam stabilizer and herring plate. Before winding, use the drag roller and guide roller (if embossing is required, use the embossing roller). The casting film machine can be cleaned with a copper knife, copper rod, or compressed air, but be careful not to damage the smooth surface of the screw and screw. In addition, it is necessary to check whether the installation work of the casting film machine unit is carried out as required and whether the bolts are installed correctly. Check and add lubricating oil to the gearbox and air compressor, and check the lubrication of various parts of the mechanical transmission. I suggest that everyone also check the power and electrical components, and all parts should be securely grounded. Especially if there is no plastic inside the barrel or if the temperature does not meet the requirements, it is strictly prohibited to ignite. Check that there are no foreign objects in the raw materials, and no unqualified substances such as iron filings should be mixed in the raw materials. Alternatively, the material may need to be dried, otherwise it must be dried first. Check if the heating system and temperature measurement system of the unit are in good condition. Of course, during the start-up process of the casting film machine, unrelated personnel must leave to prevent the material from overheating, prevent the belt and mixing cylinder from being punctured, and prevent hair and clothing from getting entangled. During the ignition process, unrelated personnel should leave to prevent the belt from being punctured and prevent hair and clothing from getting entangled.

2023-02-07

01

2023-02

What are the uses of casting film machines?

The function of the casting film machine is to divert and recombine the melt, further soften and mix it, in order to improve the dispersion and uniformity of the mixing system. Adjust the appropriate melting pressure, remove gas from the material, increase the density of the melt, and prevent the formation of pores and pores in the film. Alternatively, in production, there are performance requirements for the screen changer. The cast film product has multiple functions, high requirements, and strict processing conditions. Only a screen changer can meet the needs of production. In fact, it can remain unchanged at room temperature, but it will shrink after heating. The barrel and screw are made of alloy steel and undergo nitriding treatment. The casting film machine has good hardness and corrosion resistance. The auxiliary machine is equipped with a working platform for easy operation and is equipped with a fixed bubble ring. Especially when the equipment is working, the winding device adopts double winding and cutting, and its power adopts a torque motor, which can maintain appropriate tension, tidy winding, and convenient roll changing. The casting film machine is now mainly used for blowing PLA, PBAT, PVA water-soluble biodegradable plastic films. Widely used in liquid packaging, printing lamination, clothing and textile packaging, industrial product packaging, etc. Compared to one layer, the bag is stronger and comes in two colors. In fact, the film produced by the casting film machine has excellent heat sealing performance and excellent transparency during operation, making it one of the main packaging composite substrates. Used for producing high-temperature cooking films, vacuum aluminum plating films, etc., the market prospects are very broad. Moreover, in recent years, with the development of domestic casting machine production equipment, some technical indicators have reached international advanced levels. Therefore, the threshold for entering production is getting lower and lower. As a result, some enterprises are rushing to introduce casting film production lines in order to achieve one-step success, pursuing higher quality while disregarding market demand and investment returns. This can cause huge resource waste. Therefore, the casting film machine is widely used for packaging textiles, flowers, food, and daily necessities.

2023-02-01

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

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