Application of Ningbo injection molding machine in mold clamping according to the actual needs of the low clamping force adjustment

Not only is the quality of Ningbo injection molding machine itself has a problem, the structure of the design is not scientific enough, will lead to the use of bad performance, can not ensure the realization of the optimization of the application, the operating effect can not be guaranteed. Even if the quality of the equipment is very good without any problem, if you do not get good use, there are problems in the use of the operation, it will also lead to its poor performance. So remind everyone to pay attention to optimize the application of Ningbo injection molding machine, not only to do a good job of purchasing, to ensure that the purchase of very good quality equipment, but also need to pay attention to optimize the use of equipment, to ensure that all aspects of the equipment to do the right operation, such as pay attention to the clamping side of the clamping force in accordance with the actual need to be adjusted. Remind everyone in the application of Ningbo injection molding machine to pay attention to the clamping force in accordance with the actual needs of the clamping force to be adjusted, mainly taking into account the variety of raw materials, the size of the area of the product as well as the shape of the different clamping force required is not the same, according to the actual needs of the clamping force to be adjusted to reduce power consumption to reduce the cost of mold

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About Injection Molding Machine

Injection molding machine is also known as injection molding machine or injection machine. It is the main molding equipment to make various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molding dies. Working Principle: The working principle of the injection molding machine is similar to that of the syringe used for injection, it is with the help of the thrust of the screw (or plunger), the plasticized molten state (i.e., viscous flow state) of the plastic is injected into the closed mold cavity, and then the products are obtained through the process of curing and shaping. Injection molding is a cyclic process, each cycle mainly includes: dosing – melting and plasticizing – pressure injection – mold cooling – open the mold to take parts. After taking out the plastic parts and then close the mold for the next cycle. Injection molding machine operation project: injection molding machine operation project includes control keyboard operation, electrical control system operation and hydraulic system operation in three aspects. The injection process action, feeding action, injection pressure, injection speed, ejection type selection, barrel temperature monitoring, injection pressure and back pressure pressure adjustment. General screw injection molding machine molding process is: first of all, granular or powdered plastic into the barrel, and through the rotation of the screw and the outer wall of the barrel heating so that the plastic becomes molten, and then the machine for the mold and the injection seat forward, so that the nozzle is close to the mold’s

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How to correctly clean the screw of blow molding machine

1, Use the correct heating device It is also the most effective way to use fire or fire to remove plastics on the screw, which is most effective in plastic processing units, but absolutely cannot use acetylene flame to clean the screw. The acetylene flame temperature can reach 3000 ° C, cleaning with acetylene flames Cleaning the screw will not only destroy the metal characteristics of the screw, and will also significantly affect the mechanical tolerance of the screw. If the acetylene flame is turned into a long-lasting blue at a part of the baking screw, it means that the metal structure of the screw is happened. The change will result in a decrease in wear resistance in this part, and even a resistance to the matrix metal stripping. The partial heating of the acetylene flame can also cause overheating of the screw side, resulting in a screw curvature. Most screw adopted 4140.h. T. Made of steel, the tolerance is very tight, generally within 0.03 mm. The length of the screw is mostly within 0.01 mm, and when the screw is baked with acetylene, it is often difficult to return to the original straightness. Correct and effective way: Adopt the spray light immediately after the screw is used. Since the screw has the heat in the process experience, the heat distribution of the screw is still uniform. 2, Use the correct cleaner Today, the commodity economy is highly developed, there are many different-color screw cleaner (screw cleaning materials), most of

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6 factors affecting the effect of blow molding machine

    In the plastic industry, many companies will use the hollow products to consider the blow molding process in order to save costs, so that the cost will be greatly reduced relative to injection molding, so the method of blow molding has also been rapidly developed. Blowing products are also widely applicable, such as toy industries, packaging industries, electrical industry, and other industries. The position of the mold is separated (composite line) involved in the blow molding process, the product slope, the product layout, the inflation ratio, rounded, and modified appearances are the mold engineers and blown engineers must consider. The specific analysis is as follows: 1. Position of the matching line     Opening mold engineers need to carefully consider how to simultaneously affect the outmodel and product appearance of subsequent products; 2. Product slope      There must be a certain slope parallel to all the surfaces in the direction of the mold, where the slope should make the mold to be easily opened for the product. 3. Check all use functions      When used as a product, the less components, the less the assembly work, because the product cost can be reduced; 4. Blowing ratio In the inflation,      Pay attention to the area of the bow | to the shaped and thin geometrical shape, which may be protruding or recessed, and the ratio of width and deep ratio can be assisted in vacuo; 5. Principle of radius      Avoid sharp edges, corners,

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Principles and methods of blow mold temperature control

    The mold temperature has a great influence on the molding quality of the colloid and the molding efficiency. In a mold having a higher temperature, the fluidity of the molten compound is good, which is advantageous for the rubber to close the cavity, acquiring the appearance surface of high quality collaps, but will make the rubber curing time be long, easy to get out Deformation : For the crystalline rubber, more conducive to the crystallization process, avoiding the change in the size of the colloidal parts in use; in a lower mold in the warm house, the molten rubber is difficult to close the cavity, resulting in an increase in internal stress, There is no shiny surface, producing a silver pattern, welding, and other defects. Different compounds have different processing process, and the surface requirements and structures of various collapsies are different. In order to produce collaps in line with quality requirements in the most effective time, this requires the mold to maintain a certain temperature, mold temperature. The more stable, the product produced by the collapse of the product is in terms of the requirements of the size, the appearance of the collaps. Therefore, in addition to the factors in mold manufacturing, the mold temperature is an important factor in controlling the quality of the colloidal product, and the mold temperature should be considering the mold temperature. Principles of mold temperature control In order to ensure the production of high appearance quality requirements, the size of the

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Effect of screw speed on blow molding machine

    The screw speed directly affects the yield of blow molding machine and the quality of the product, which determines the size and shape of the screw and the extruded article and the type of the raw material. The speed of increasing the screw can significantly increase the production of blow molding machine, but the power consumption is also increased accordingly. From the purpose of improving the output, it is advantageous to adopt a higher speed. At the same time, increasing the speed of the screw due to the increase in the shear effect of the screw, improves the screw speed and improves the plasticization effect of the material, and improves the micro quality of the article. However, the improvement of the screw speed should be limited, too high, and the residence time of the plastic is short, it may cause uneven melt temperature, and the surface quality of the seat is lowered. In particular, the shear rate increases to cause high density polyethylene plastic. Moreover, a large amount of frictional heat is generated when the speed is increased, so that the plastic is in an instant degradation. Therefore, the speed of the screw should be adjusted according to the actual situation.     In the past, if it is necessary to improve the production of blow molding machines, the main method is to increase the diameter of the screw. Although the screw diameter increases, the material extruded in unit time will increase. But the blow molding machine is

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Detailed introduction to the process of automatic hollow blow molding machine

Blow molding is also called hollow blow molding, a rapidly developing plastic processing method. The tubular plastic parison obtained by extrusion or injection molding of the thermoplastic resin is placed in a split mold while it is hot (or heated to a softened state). After the mold is closed, compressed air is injected into the parison to blow the plastic parison It expands and clings to the inner wall of the mold, and after cooling and demolding, various hollow products are obtained. The manufacturing process of blown film is very similar in principle to blow molding of hollow products, but it does not use a mold. From the perspective of plastic processing technology classification, the molding process of blown film is usually included in the extrusion. The blow molding process was used to produce low-density polyethylene vials during the Second World War. In the late 1950s, with the birth of high-density polyethylene and the development of blow molding machines, blow molding technology was widely used. The volume of the hollow container can reach thousands of liters, and some production has adopted computer control. Plastics suitable for blow molding include polyethylene, polyvinyl chloride, polypropylene, polyester, etc. The resulting hollow containers are widely used as industrial packaging containers. According to the parison production method, blow molding can be divided into extrusion blow molding and injection blow molding, and the newly developed multi-layer blow molding and stretch blow molding. Plastic mold common sense-extrusion blow molding Extrusion blow molding is a method of manufacturing

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Guide for Periodic Maintenance of Hollow Blow Molding Machine

What is included in the regular maintenance of the extrusion blow molding machine? Regular maintenance is an important part of the maintenance of the extrusion blow molding machine, including 3-6 months, 12 months and 36 months of regular maintenance, which are generally referred to as minor repairs, medium repairs and overhauls. (1) The main content of minor repairs ①Clean the feeding pipe of the feeding system and replace the seals. ② Clean up the vacuum system. ③The machine head leakage treatment and the maintenance and cleaning of the filter replacement device. ④ Check and deal with the leakage of cooling water, lubricating oil and other pipelines and fittings. ⑤ The working oil of the hydraulic system should be supplemented in time to ensure that the oil level is in the middle of the oil standard. In order to ensure that the working oil has a suitable viscosity, it is recommended to use 32# mill hydraulic oil when the ambient temperature is low, and 46# mill hydraulic oil when the ambient temperature is high. ⑥ Every half month to one month, the oil level window of the reducer should be observed. If the oil level is lower than the specified value, an appropriate amount of 220 intermediate hydraulic gear oil (LCKC220) should be added in time. After the new machine is started, the lubricating oil should be replaced once within 300-600h. The replacement time needs to be when the reducer stops until the lubricating oil has not cooled down, and the

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