American airbag cover mold
Category: mold design
Breast shields are composed of complex curved surfaces. Outer surface requirements are high, there must be a smooth transition between different curved surfaces. There are flat cover, horn cover, and circular cover structures. These three structures are connected through middle circular tubular structure and have different opening directions, as shown in Figure 1. Core of trumpet cover and core of central round tube of plastic part are integrated into one piece, side surfaces of flat cover are connected to central round tube of plastic part, and cores of the two are connected by insertion. Bottom of circular cover is connected to circular pipe in the middle of plastic part through a section of circular pipe. There are 4 buckles evenly distributed on inner wall of circular cover. These 4 buckles need to be demoulded using an inclined push mechanism.
Medical polypropylene plastic has advantages of high purity, non-toxicity, non-irritation, good chemical stability, no degradation, no inflammation, non-allergic reaction, good biocompatibility, non-carcinogenicity, non-hemolysis and non-coagulation, and can withstand ethylene oxide sterilization treatment. This material not only has good mechanical properties, but also has excellent impact resistance and wear resistance, good dimensional stability and insulation.
This article mainly introduces problems that arise during mold opening, mold trial and mass production processes after design of plastic parts is completed. It also provides a general understanding of how to solve them. Details are as follows;
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Product structure of automobiles is generally complex, and mold structure is diverse. Let me share with you a classic structure of rear mold oblique slider:
This article mainly introduces problems that arise during mold opening, mold trial and mass production processes after design of plastic parts is completed. It also provides a general understanding of how to solve them. Details are as follows, mainly following points:
Tee elbow demoulding
Accessory products of driving recorder are shown in Figure 1. Maximum dimensions of product are 97.80 mm *Â 37.80 mm *Â 74.00 mm; average thickness of plastic part is 1.50 mm, material of plastic part is ABS, shrinkage rate is 1.005, and weight of plastic part is 40.60 grams. Technical requirements for plastic parts are that there should be no defects such as peaking, underfilling, flow lines, pores, warping deformation, silver streaks, cold material, and jetting lines, and meet ROSH environmental protection requirements.
When we design molds, we occasionally encounter products with threads. External screw products can be half-exited by front and rear molds, or two sliders can be undercut. For products with high requirements for internal threads, only thread core pulling mechanism can be used. Here is a set of front mold thread core pulling mechanism molds for everyone.
Gud Mould 