分型麵(miàn),即(jí)模具閉合(hé)時凹(āo)模(mó)與凸模相互(hù)配合(hé)的接觸表麵。它的(de)位置和形式的選定,受製品形狀及外觀、壁厚、成型方(fāng)法(fǎ)、後加工工(gōng)藝、模(mó)具(jù)類(lèi)型與結構、脫(tuō)模方法及成型機結構(gòu)等因(yīn)素的影響。
Parting surface, that is, the contact surface between the female die and the male die when the die is closed. The selection of its position and form is affected by factors such as product shape and appearance, wall thickness, forming method, post-processing technology, mold type and structure, demoulding method and molding machine structure.
結構件,即複雜模具的滑塊、斜頂、直頂塊等。結構件(jiàn)的設計非常關鍵,關係(xì)到模具的壽命(mìng)、加工周期、成本、產品質量等,因此設計(jì)複雜模(mó)具核心結構對設計者的綜合能力要求(qiú)較高,盡可(kě)能追求(qiú)更簡便、更耐用、更經濟的設計方案。
Structural parts, i.e. sliding block, inclined top, straight top block, etc. of complex die. The design of structural parts is very critical, which is related to the service life, processing cycle, cost and product quality of the die. Therefore, the design of complex die core structure requires higher comprehensive ability of the designer, and pursues a simpler, more durable and more economical design scheme as far as possible.
模具精度,即避卡、精定位、導柱、定位銷(xiāo)等。定位係統關係到製品外觀質量,模具質量與壽命,根據模具(jù)結構不同,選擇不同的定位方式,定位精度控製主要依靠加工(gōng),內模定位主要是設計者充分去(qù)考慮,設計出更加合理易調整的定位方式。

Die accuracy, i.e. card avoidance, fine positioning, guide post, positioning pin, etc. The positioning system is related to the appearance quality of products, mold quality and service life. Different positioning modes are selected according to different mold structures. The positioning accuracy control mainly depends on processing. The internal mold positioning is mainly considered by the designer to design a more reasonable and easy to adjust positioning mode.
澆注係統,即(jí)由注塑機噴嘴型腔(qiāng)之間(jiān)的進料通道,包括主流道(dào)、分流道、澆口和冷料穴。特別(bié)是澆口位置的選定應有利於熔融塑料在良好(hǎo)流動狀態下充滿型腔(qiāng),附在製(zhì)品上的固態流道和澆口冷料在開模時易於從模具內頂出並(bìng)予以(熱流道(dào)模除外(wài))。
The gating system, that is, the feeding channel from the nozzle of the injection molding machine to the mold cavity, includes the main flow channel, shunt channel, gate and cold material cavity. In particular, the selection of gate position should be conducive to filling the mold cavity with molten plastic under good flow state, and the solid runner and gate cold material attached to the product are easy to be ejected from the mold and removed during mold opening (except hot runner mold).
塑料收縮率以及影響製品尺寸精度的精密(mì)模具加工各項因素,如(rú)模具製造和裝配誤差(chà)、模具磨損等(děng)。此外,設計壓塑模(mó)和注塑模時,還應考慮成型機的工(gōng)藝(yì)和結構參數的匹配。在塑料模具設(shè)計中已廣泛應用計算機輔助(zhù)設計技術。
Plastic shrinkage and various factors of precision mold processing that affect the dimensional accuracy of products, such as mold manufacturing and assembly error, mold wear and so on. In addition, the matching of the process and structural parameters of the molding machine should also be considered when designing the compression mold and injection mold. Computer aided design technology has been widely used in plastic mold design.
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