—— INTRODUCTION ——

引言

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七分格，即医用七格分药器，是专为口服药物分装设计的七日管理工具。它承载着精准分药、定时提醒、防误漏服三大核心功能，是慢病管理、老年照护和居家用药安全的基础防线。

然而，其产品的结构特点与规模化生产之间，存在天然的矛盾：

薄壁多格——注塑时熔体流动路径长，填充阻力大，极易出现缺料、缩痕；

壁薄精度高——各分格间壁厚仅毫米级，尺寸公差严格，对浇口痕迹与成型一致性极为敏感；

材料与批量——选用PP、PE、PETG等食品级医用材料，既要满足生物相容性，又需在百万级大批量生产中兼顾成本与效率。

这些特性，使得七格分药器的精密成型，成为一项对模具设计、工艺参数与生产管理都极具挑战的工程命题。针对七分格中杯，推荐针阀式热流道，外观要求高、浇口需平整（如透明/外观件）时首选，搭配多浇口设计，适配格子多、填充距离长时，保证各格同步填充、降低内应力。

The 7-compartment pill organizer, also known as a medical 7-day pill box, is a 7-day medication management tool designed specifically for dispensing oral drugs. It serves three core functions: precise medication separation, scheduled reminders, and prevention of missed or wrong doses. It acts as a fundamental defense line for chronic disease management, elderly care, and home medication safety. 

However, a natural contradiction exists between its structural characteristics and large-scale mass production:

Thin-walled & Multi-compartment: Long melt flow paths during injection molding result in high flow resistance, making the part prone to short shots and sink marks.

Thin Walls with High Precision: The wall thickness between compartments is only at the millimeter level with strict dimensional tolerances, making the part extremely sensitive to gate marks and molding consistency.

Materials & Production Volume: Using food-grade medical materials such as PP, PE, and PETG must satisfy both biocompatibility requirements and cost-efficiency in million-level mass production.

These characteristics make the precision molding of 7-compartment pill organizers a challenging engineering proposition across mold design, process parameters, and production management. For the medium cup of the 7-compartment organizer, a valve gate hot runner system is recommended. It is the top choice for parts requiring high aesthetic appeal and smooth gate marks (such as transparent or appearance-critical parts). Combined with a multi-gate design, it accommodates multi-compartment layouts and long flow distances, ensuring synchronized filling across all compartments and reducing internal stress.

—— SOLUTIONS ——

热流道系统方案

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填充时间等高线图

FILL TIME CONTOUR PLOT

V/P转换时的射压

INJECTION PRESSURE AT V/P CONVERSION

波前温度分布

TEMP. AT FLOW FRONT

平均体积收缩率

AVERAGE VOLUMETRIC SHRINKAGE RATE

28点针阀分体系统，HTVBE25标准结构。

Hot Runner System: 28-drop valve gate separate system, HTVBE25 standard structure.

—— CHARACTERISTICS ——

热流道系统特点

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多格医疗包装产品，采用热流道注塑可实现零废料、短周期、高精度、符合 GMP 洁净要求，是大批量医疗包装降本增效的最优解。

原料零浪费，材料利用率近 100%：完全消除冷流道废料，省去流道料头，避免回收料掺入影响卫生性能，全程只用新料，契合医疗"无析出、无污染"要求。

成型周期大幅缩短（20%–40%）：省去流道冷却时间与取废料时间，注塑节拍更快，对七分格这类多腔件，多腔平衡进胶，单位时间产能显著提升。

成型质量与一致性提升：精准控温，熔体输送平稳均匀，薄壁格子填充饱满、无缺料。产品重量偏差可控制在 0.3% 以内，尺寸精度高，浇口痕迹小（针阀式可<0.05mm），无需后加工打磨

满足医疗洁净与 GMP 规范：无滞留、易清洁，无缝流道设计避免死角积料、交叉污染。适配 PP、PE、PETG 等食品医药级材料，可满足 GMP / FDA / SGS 认证要求，减少人工干预，符合洁净生产标准。

降本增效，综合成本低：节省原料 15%–30%，能耗下降 15%–30%。前期投入虽高，但规模化生产回本快，单件成本显著降低。

For multi-compartment medical packaging products, utilizing hot runner injection molding enables zero waste, short cycle times, high precision, and compliance with GMP cleanroom requirements. It represents the optimal solution for cost reduction and efficiency enhancement in high-volume medical packaging.

Zero Material Waste, Near 100% Material Utilization: Completely eliminates cold runner scrap and runner sprues, avoiding the use of recycled material that could compromise hygiene. Using 100% virgin material throughout fulfills medical requirements for zero leaching and zero contamination.

Significantly Reduced Cycle Time (by 20%–40%): Eliminates runner cooling time and scrap removal time, resulting in faster injection cycle times. For multi-cavity parts like the 7-compartment organizer, balanced multi-cavity gating significantly increases throughput per unit time.

Enhanced Molding Quality and Consistency: Precise temperature control ensures smooth and uniform melt delivery, filling thin-walled compartments completely without short shots. Part weight variation can be controlled within 0.3%, featuring high dimensional accuracy and minimal gate marks (valve gate marks < 0.05 mm), requiring no post-process trimming or grinding.

Meets Medical Cleanroom & GMP Standards: Dead-leg free and easy to clean, the seamless runner design prevents material accumulation and cross-contamination. Compatible with food/medical-grade materials such as PP, PE, and PETG, meeting GMP, FDA, and SGS certification requirements while minimizing manual intervention for cleanroom production.

Cost Reduction & Efficiency Gains: Saves 15%–30% in raw materials and reduces energy consumption by 15%–30%. Although the initial investment is higher, high-volume production yields quick ROI, significantly lowering unit cost.

优点

双层ABM熔合分流板，无堵头设计，预防流道内转接滞料，保证产品质量和平衡性。

一个缸体控制7支阀针，保证各格同步填充及尺寸精度。

ADVANTAGES

ABM fusion Manifold: Plug-free design prevents material degradation at runner transitions, ensuring product quality and fill balance.

Single Cylinder Controlling 7 Valve Pins: Guarantees synchronized filling across all 7 compartments as well as high dimensional accuracy.

—— TECHNOLOGY ——

技术要求

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双层熔合技术：平衡性好，光洁度佳，无滞料，无异色。

Dual-Layer ABM manifold Bonding Technology: Delivers superior balance, excellent surface finish, no material stagnation, and no color contamination.

一缸多针设计：①七支阀针绝对同步，消除填充不平衡。②解决阀针间距小、安装空间不足的问题。

Single-Cylinder Multi-Pin Design: ①Absolute synchronization of the seven valve pins eliminates imbalanced filling. ②Solves the challenge of tight valve pin spacing and limited installation space.

阀针头部双层定位：保证阀针活动时同心度，提高浇口寿命，减少浇口毛边。

Double locating ring for valve pin: Guarantees valve pin concentricity during actuation, extending gate lifespan and minimizing gate burrs.

HTS热流道

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