Air Cooler Tooling

Product details

Air conditioner mould/ plastic air cooler injection mold

1. The concept of export mold

Unlike the export of ordinary goods, although the export destinations of molds made in China are very wide, as far as Europe, North America, the Middle East, and as far as Southeast Asia, Japan, South Korea, these countries and regions are the export destinations of Chinese molds, but The export molds in our industry generally refer to molds exported to Europe, North America, Japan and South Korea and other countries and regions.

According to the different mold design concepts and styles, the current export molds can be simply divided into three categories, that is, the three standard systems. Japan and South Korea in Asia, and even including Taiwan in China, the mold style is very close, mold standards The Japanese standard is adopted, and the representative one is the MISUMI standard. The unit of measurement is the metric system, which is mainly based on soft molds. The mold making cycle is relatively short, and the product replacement is faster. Except for some large companies, the popularity of hot runners is low, and the cost performance of molds is high.

In Europe, the United Kingdom, Germany, France, Italy and the Netherlands, the mold adopts European standards. The most representative is the German HASCO standard, followed by each country has its own standards, such as the United Kingdom has DMS standard, France has RABOURDIN standard However, these standards are different from HASCO standards, and there are similarities. For example, when ordering HASCO standard mold blanks, guide pillars, guide sleeves, templates and other components are supplied as single parts. The panel and bottom plate of each mold blank can choose the same parts or different, with positioning There are ring holes, and there are no mounting holes for positioning rings. After purchasing these parts, you need to assemble them into mold embryos. In Europe, many molds have a positioning ring on the panel and bottom plate. These features are different from domestic molds. Shown is a set of RABOURDIN standard mold blanks. It can be seen that the panel F5 and the bottom plate F5 are exactly the same. The diameter of the guide column guide sleeve is 3 large and 1 small, the large is 32, the small is 30, and the template length and width are with 6, Both the guide post and guide sleeve of the mold base have positioning functions, which is similar to HASCO. The mold components are all metric standards, and the water connector is also metric threads.

The design concept of the European mold is that the nozzle material is automatically cut in the mold. It is not allowed to manually cut the nozzle material. The injection molding production must be fully automatic, so the mold with three-plate mold fine nozzle into the glue is very rare. The most commonly used are diving and horn feeding (also called banana into the water), because these two kinds of feeding can be automatically cut off in the mold. Most of the molds on the top of the product are single hot nozzle molds or hot runners. HASCO, RABOURDIN, DMS are the standard parts suppliers of molds, and they are also developers of hot runner technology.

In Europe, the pursuit of high-efficiency, precision and long-life operation of molds regards molds as works of art, and mold accessories are also quite delicate. Most of European molds are hard molds, which improve the performance of steel through heat treatment. HASCO, RABOURDIN, DMS and MEUSBURGER (Austrian brand) and other standard parts manufacturers' factories are not large. The number of employees is generally between five and six hundred. They attach great importance to research and development and technological innovation, and their development is very rapid, which has effectively promoted the standardization of molds. development of. Figure 2 shows HASCO's newly released secondary ejection standard component Z1698 in recent years. The third largest standard system for exported molds is North American molds, including the United States, Canada and Colombia and other countries. North America molds and European molds are the same or similar. Even North American molds are dominated by hard molds. Three-plate molds with fine nozzles are rarely used. Hot runners and hot nozzles are more popular. The mold base is the guide post in the fixed mold. In addition, no matter from other perspectives, North American molds and European molds are very different. Many domestic practitioners have less contact with export molds, and confuse molds exported to Europe and the United States. In fact, molds in Europe and the United States are less similar and cannot be collectively referred to as European and American molds.

Packaging & Delivery

Packaging Details:Wooden box, or as your requirement

Port:Shenzhen

Lead Time:30-45days

Plastic molds exported to the United States are high-end commodity molds. The most famous mold standard parts suppliers are DME, PCS and Progressive. These three standard parts systems are widely used in North America countries such as the United States, Canada and Colombia. Designation. The mold blanks of North American molds are straight mold blanks, and DME standard mold blanks are divided into 5 series: A, B, X, AX and T. A series and B series are the most common two-plate mold blanks, X series are used for pushing plate molds, AX series are similar to the simplified fine nozzles of Longji mold blanks, and T series are used for three-plate molds. The three-plate mold is replaced by the hot runner due to the waste of the plastic material caused by the nozzle material. Therefore, the three-plate mold accounts for less than 2% of the entire injection mold, and the T series mold blank is less used. U.S. molds are usually British molds, dimensions need to be imperial, all mold blanks are H-shaped straight mold blanks. Figure 2 shows the B series of mold blanks. The front mold has only one template and its guide post is flipped. It is used in the mold structure of the two-plate mold. This design of the mold blank has high strength and rigidity. The guide column of the DME mold base does not have an oil groove. The oil groove is opened on the inner wall of the guide sleeve, which is convenient for storing oil and receiving dirt. At the same time, an oil injection hole is opened in the circumference of the guide sleeve. The four sides of the mold blank need to be designed with zero-degree positioning block guides instead of sloped positioning blocks. American DME Company has a history of nearly 70 years. It mainly produces mold standard parts and hot runner systems. With the continuous expansion of production and sales, it has become the world's largest mold standard parts manufacturer in the mold industry and the three largest mold industry in the world. One of the standards and one of the high-end hot runner solution providers. The company's mold standard parts product sales network covers more than 70 countries around the world. Since the acquisition of the European EOC company by DME in the United States, DME has become the only global mold standard parts provider with both North American standards and European standards. At the same time, DME provides the most widely used standard mold base in North America and MUD quick-change mold base system.

2. Quality concept of export mold

In addition to mold design and mold maintenance, the most important factors determining mold reliability also depend on mold steel and heat treatment methods and mold processing technology. A set of high-quality molds should fully understand and meet the needs of customers and be in line with customer philosophy, tailored solutions for different products of different customers. The criterion for judging whether the export mold is qualified is whether it conforms to the mold style book and whether the customer is satisfied.

Different cultural concepts determine different mold structure forms. The concept of export molds is that the designed molds should conform to the customer's design concept. Customer satisfaction is the only criterion for judging the passing of molds. We want to produce high-quality molds that customers are satisfied with and customers want. The quality concept, including the appearance of the mold, makes guests think that the mold is tailor-made for them and is carefully made. For example, the polishing of the rear mold, the equally important concepts of the front and rear molds, and the appearance of the mold must be valued. Conditional large-scale export mold factories need to classify and manage customers. Different customers have different requirements, and each customer sets different mold manufacturing process standards to meet their needs. The real materials are made, and the materials should be communicated to the guests in advance and agreed. Choose appropriate mold standard parts that meet customer needs. Delivery period is the embodiment of credibility.

Some people say that the standard for judging whether the mold is qualified is whether it can produce a qualified product. The size, shape and position tolerance and appearance of the product are in line with the drawings. At the same time, the mold can operate for a long life, easy to maintain, and long-term use without failure. If it meets such conditions, even Good mold. This concept is suitable for customers with extensive management in China. For customers in Europe, America and Japan, this concept is obviously wrong. For example, a foreign customer originally had a product and it has been in production for decades. Due to cost considerations, the production line was transferred to China. The original injection cycle was 25 seconds. A new mold was opened in China, and the performance of the product fully reached Requirements, but the injection cycle takes 30 seconds, the actual production capacity is reduced by 20%, can you say that such a mold is qualified?

3. Green manufacturing concept of export mold

With the help of all kinds of information related to products in the product life cycle, green design makes use of various advanced theories such as concurrent design to make the designed products have advanced technology, good environmental coordination and reasonable economy. Whether the product can meet the requirements of the green standard depends on whether the green design is adopted in the design. Green design involves many disciplines such as manufacturing, materials science, management science, sociology, and environmental science, and has strong multidisciplinary interdisciplinary characteristics. The existing design methods are difficult to adapt to the requirements of green products, so green design is an integrated design, which is the integration of design methods and the design process. Green design integrates system design methods such as object-oriented technology, concurrent engineering, and life cycle design, and integrates factors such as product quality, function, life, and environment.

The cost analysis of green products is different from the traditional cost analysis. Since the performance of product recycling and reuse must be considered in the product design stage, the cost analysis must consider the replacement of pollutants, product disassembly, reuse costs, and corresponding environmental costs.

Modern demand is developing from popularization to individualization. Industrial production has entered a new era of small batches, multiple varieties, and rapid changes from large quantities, few varieties, and relatively stable demand. In the period of large-scale assimilation demand, although traditional molds have the disadvantages of long development cycle, high cost, difficult to reuse, and recycling, but because they can be quickly copied in large quantities, the characteristics of high-quality products are still very suitable for this period; and earth resources Despite the high consumption, the traditional mold production method is relatively economical. With the advent of the personalization era, if the traditional mold production method is still used, not only can the rapid change situation not be met in time, the cost is also too high, and the amount of mold waste is also intolerable to the environment. In order to adapt to small batches and fast-changing products, the design and manufacture of molds must be fast, and the most important point is that in addition to considering mold functional attributes, mold design and manufacturing must also consider environmental attributes and the sustainability of development, that is, traditional molds must Towards a green mold. Green molds are basically the same as traditional molds except for physical function attributes. The environmental attributes that must be considered have two major aspects: one is the maximum time and material cost savings in design and manufacturing, and the other is the impact on the environment during the entire life cycle of the mold. The least degree. It is precisely because of these two environmental attributes of the green mold that it can not only meet the characteristics of personalized rapid and changing needs, but also be sustainable in development. The shell of the printer produced by Canon in Japan is made of HIPS material. There is a requirement in the technical requirements of the product drawings that the release agent must not be used at any time, which is based on environmental considerations for the environment of the injection molding plant and the environment in which the printer product is used. , The material recycling marks on large plastic parts and the accessories such as date, month, date, and date are designed to facilitate the implementation of green manufacturing.

Modern mold manufacturing has shifted from relying on highly skilled technical workers to the use of high-precision CNC machine tools. Advanced 3D software and three-dimensional testing equipment, mold flow analysis software. The application of these technologies has gradually made mold processing level gradually get rid of traditional manual preparation. The method also reduces the application of Red Dan, the application of mold washing water, and the use of Teflon raw tape on water pipe joints. These technological advances have great environmental benefits.

4. Application of Murphy's Law

"Murphy's Law" is a psychological effect, proposed by Edward A. Murphy.

main content:

1. Nothing is as simple as it seems;

Second, everything will take longer than you expect;

3. Things that go wrong will always go wrong;

4. If you are worried about something happening, then it is more likely to happen.

The original sentence of Murphy's Law is this: If there are two or more ways to do something, and one of the choices will lead to disaster, someone must make this choice.

This sentence spread quickly. Murphy's Law is a famous statement made by him, also known as Murphy's Law and Murphy's Theorem, and is a slang commonly used in the Western world.

The main content of Murphy's Law is: If something is likely to get worse, no matter how small this possibility is, it will always happen.

Murphy's law has spread in the technical world because it reveals an iron fact: technological risk can change from possibility to sudden fact. "Murphy's Theorem" was widely cited in the field related to aerospace machinery, and later expanded to the mold industry.

In the export mold industry, many companies in the mold manufacturing industry in Europe and America use Murphy's law to manage their enterprises. By summarizing the previous experience, we can find regular things and refine them to form new technical standards. It is similar to the current big data management. Big data in the mold industry is accumulated through long-term practice and is a competition for mold companies. magic weapon.

The specific application of Murphy's Law in the mold is DFM. The quality of the mold depends on the design quality and manufacturing quality of the mold. The process plays a vital role in the formation of the mold quality. The model was tested but the mold performance was unstable and the production could not be transferred. There was too much rework to deliver in time according to the order requirements. Various problems occurred when the mold arrived at the customer site. The technicians needed to rescue the fire, etc. These are often encountered by mold companies. Headache.

DFM is the abbreviation of Design for Manufacturability. It mainly studies the mutual relationship between the physical design of the product and the various parts of the manufacturing system, and uses it in product design to integrate the entire manufacturing system together for overall optimization. DFM can reduce the product development cycle and cost, so that it can be put into production more smoothly. European and American customers will always ask for DFM documents before placing an order. Suppliers have an important responsibility for their own DFM evaluation, which will directly affect the rationality of mold design and stability during mass production, so please check when evaluating Be sure to pay attention to the details and evaluate one by one as required. The reference items of mold DFM evaluation are shown in table 1. The file of mold DFM must be one file for each set of mold.

5. Conclusion

The design of the export mold must be in line with the customer's design concept. Customers in different regions of the world have different ideas about injection molds, which is determined by different cultural concepts. The design of the export mold needs to be familiar with the customer's mold standards and injection molding machine specifications, and strictly follow the customer's mold specification book (MOULD SPECIFICATION) design. Pay attention to dimensional inspection, strictly process according to the drawing of mold parts, and eliminate the traditional backward technology such as artificial matching. We must continue to learn advanced European technology and management concepts, and strive to improve the company's own core advantages and competitiveness.

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