France is an industrially developed European country. Europe is one of the most developed regions in the world for mold industry. French standard for injection molds is ROUBARDIN standard, and famous German HASCO standard is also adopted in France. European molds have advantages of high efficiency, precision and long life. At the same time, the most important factors that determine mold reliability are mold design and mold maintenance, as well as mold steel, heat treatment methods, and mold processing technology. A set of high-quality molds should fully understand and meet needs of customers and be in line with customer concepts, tailor-made solutions for different customers' different products.
"Injection start-up is not equal to making money", if control / management work is not in place in injection molding production, there will be low production efficiency, high defect rate, large number of seats, large material consumption, bulk returns, artificial damage to mold, compression mold, broken screw heads, delayed delivery, frequent machine repairs / mold repairs, high defect rates, many scraps, large waste of raw materials and even safety accidents. It will cause huge economic losses to company, and company's profits will be greatly reduced, or even loss . Let's calculate cost-related accounts.
Definition: Mold design refers to those who are engaged in digital design of enterprise molds, including cavity molds and cold stamping dies. On the basis of traditional mold design, they fully apply digital design tools to improve mold design quality and shorten mold design cycles. Mold designers can find employment in the fields of mold CNC programming, mold 3D design, and product development 3D design.
A mold is composed of many parts. Quality of parts directly affects quality of mold. Final quality of parts is guaranteed by finishing. Therefore, it is important to control finishing. In most domestic mold manufacturing companies, methods used in finishing stage are generally grinding, electrical machining and fitter processing. At this stage, it is necessary to control many technical parameters such as part deformation, internal stress, shape tolerance and dimensional accuracy. In specific production practice, there are many difficulties in operation, but there are still many effective experience methods worth learning.
Quality of raw material itself is poor, and there are too many black spots; Partial overheating of screw causes carbonization of material to increase, and carbonization is carried into material strip, resulting in excessive feeding points; Partial shear of screw is too strong, which causes carbonization of material to be aggravated, and carbonization is carried into material strip, resulting in too many feed points;
When output of production and service provision process cannot be verified by subsequent supervisors or measurements, so that problems do not become apparent until after product is used or service is delivered, organization shall confirm any such process in real time. From above definition, it can be known that die casting process is a special process. Quality of die casting cannot be actually controlled during die casting process. All process parameters are only indirect measurements of external control. True quality of die casting can only be verified by post-mortem inspection; At this time, quality of die-casting parts has been formed, inspection results cannot change quality of die-casting parts in any way.
Inserts is a mold term. It is specifically referred to as a mold fitting for inlaying in a mold. Inserts can be square, round, and sheet-shaped. Like all mold parts, precision requirements are also very high. Generally, there is no finished product, and it is customized according to needs of mold. Types of inserts: core pin, insert block, insert rod, insert ring, etc.; Material: SKD61, SKH51, ASP23, SKD11, etc., or same as mold material; Hardness: 50HRC or more; Standard accuracy: ±0.01mm, depending on specific mold accuracy requirements.
Cosmetic plastic packaging has requirements for screwing orientation of bottle and cap. By controlling direction and size of screw of bottle and cap, under premise of sealing function, when capping torque reaches standard value, accurate positioning of bottle and cap can be achieved . During injection production of threaded caps, threaded rotary demolding gear combination needs to wait for mold opening and closing strokes to be in place before starting threaded rotary demolding and thread reversal reset actions, which prolongs injection production molding cycle. Now we will explain positioning of threaded cap and its mold structure, introduce optimized design and working process of injection mold structure for forming product.
With rapid development of automotive industry and fierce competition in automotive industry, consumers are increasingly demanding automotive interior parts. Automotive interior parts with 3D texture can enhance three-dimensional sense of automotive interiors, meet consumers' requirements for aesthetics and individualization of automotive interiors. Existing process methods mainly include spraying, electroplating, inmoulding label (IML), in-mould decoration (IMD) and other flat molding technologies. 3D effect of molding is poor, use of spraying and other processes will bring a series of environmental protection issues, affect internal environment of vehicle, and cannot meet requirements of volatile organic compounds (VOC). Therefore, studying molding technology of automotive 3D two-color interior parts has important significance and application value for enhancing three-dimensional sense of automotive interiors, improving fashion and beauty, reducing manufacturing costs, and improving vehicle VOC.
At present, plastics industry has achieved rapid development in China, plastic molding technology is developing in direction of "precision, thinness, lightness and smallness". Cost of plastic usually accounts for a larger proportion of cost of product, and thinning of product can help reduce ratio. Due to miniaturization and portability of consumer electronic devices such as mobile phones, MP3 players, digital cameras, and palmtop computers, many plastic products used in above-mentioned devices to support light, sound and electricity are also required to be thinner, smaller and lighter.