To produce a set of high quality injection mold, not only need to have good mold processing equipment and skilled mold manufacturing workers, but also a very important factor is to have good mold design, especially for complex mold, the quality of mold design accounts for more than 80% of the mold quality. An excellent mold design is: on the premise of meeting the customer's requirements, making the processing cost low, the processing difficulty small, and the processing time short.
To achieve this, we should not only fully digest the requirements of customers, but also understand the injection molding machine, mold structure, processing technology and the processing ability of the mold factory itself. Therefore, to improve the design level of injection mold, the following design principles should be followed:
At the beginning of the design of each injection product, the opening direction and parting line should be determined first to ensure that the core pulling slider mechanism can be minimized and the influence of parting line on the appearance can be eliminated.
Understand every detail in every mold design, understand the purpose of every part in the mold.
Proper demoulding slope can avoid product top damage, such as top white, top deformation and top breakage
In the design, we should refer to the similar design before, understand the situation in its mold processing and product production, and learn the experience and lessons from it.
The contradiction among appearance, performance and process must be considered in the design of injection molding products. Sometimes, good appearance or performance can be obtained at the expense of some processability. Zhenye injection molding consulting focuses on training and guidance for injection molding plants.
Learn more about the working process of the injection molding machine to deepen the relationship between the mold and the injection molding machine.
The buckle device is designed to share multiple buckle positions at the same time, so that the whole device will not be unable to operate due to the damage of individual buckle positions, so as to increase its service life, and then more filtering and filleting to increase the strength.
Go to the factory to understand the process of processed products, and understand the characteristics and limitations of each process.
Generally, the product identification is set at the flat part of the internal surface of the product, and in the form of bulge, the identification is set at the surface where the normal direction and the opening direction ruler may be the same, so as to avoid strain. Zhenye injection molding consulting focuses on training and guidance for injection molding plants.
Understand the die test results and die modification of the designed die, and learn from them.
Inserting inserts into injection products can increase local strength, hardness, dimensional accuracy and set small threaded holes (shafts) to meet various special needs. At the same time, it will increase the product cost.
In the design, try to use the previous successful mold structure.
Setting reasonable fillets can also improve the processing technology of the mold. For example, the cavity can be directly milled by r-knife, and low-efficiency electrical machining can be avoided.
Learn more about the effect of mold water on products.
The strut shall not be used alone as far as possible, but shall be connected to the outer wall or used together with the stiffener as far as possible, so as to strengthen the strength of the strut and make the rubber flow more smoothly.
Study some special mold structure, understand the latest mold technology.
