分型麵,即模具閉合時凹模與凸模相互配合的接觸表麵(miàn)。它的位置和形式的選定,受製品形狀及外(wài)觀(guān)、壁厚、成型(xíng)方法、後(hòu)加工工藝、模具(jù)類型(xíng)與結(jié)構、脫模方法及成型機結構等因素的影響。
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。結構件的設計非(fēi)常關鍵,關係到模具的壽命、加工周期、成本、產品(pǐn)質量等,因此設計複雜模具核心結構對設計(jì)者的綜合能力要求較高(gāo),盡(jìn)可能追求更簡便、更耐用、更經濟的設計方案(àn)。
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(jù)精度,即避卡、精定位、導柱、定位銷等。定位係統關係到製品外觀質量,模具質量與壽命,根據模具結構不同(tóng),選擇不同的定位方式,定位精度控製主(zhǔ)要依靠加工,內模定位主要是設計者充分去考慮,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(xì)統,即(jí)由注塑機噴嘴至型(xíng)腔之間的進料通道,包括主流道、分流道、澆口和(hé)冷料(liào)穴。特別是澆口(kǒu)位置的選定應有利於熔融(róng)塑料在良好流動狀態下(xià)充滿型腔(qiāng),附在製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予以清除(熱流道模(mó)除外)。
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(xiǎng)製品尺寸精(jīng)度的精(jīng)密模具加工各項因素,如模具製造和(hé)裝配誤(wù)差、模具磨損(sǔn)等。此(cǐ)外(wài),設計(jì)壓塑模和注(zhù)塑模時,還(hái)應考慮成型機的工藝和結構參數的匹配。在(zài)塑料模具設計中已廣泛(fàn)應用計(jì)算機輔助設計技術。
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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