锻压技术

麻纤板汽车饰件热压-注塑一体化模具设计

英文标题：Design on hot pressing-injection molding integrated die for hemp fiberboard automobile parts

单位：1.华中科技大学材料科学与工程学院湖北武汉 430070 2.宁波方正汽车模具股份有限公司浙江宁波 315600

分类号：TG76

出版年,卷(期):页码：2025,50(6):168-172

摘要：

为解决热压-注塑一体化工艺中因模具上下模卡死而导致的产品缺陷问题，深入分析了上下模卡死的根本原因——模具设计中上下模的配合间隙设置不当。为此，创新性地设计了一种优化型汽车饰件热压-注塑一体化模具。采用阵列式第1沉头孔与气缸驱动端螺纹连接，确保了连接件与驱动部件的牢固结合；同时，引入第2沉头孔设计，强化了插板与连接件之间的连接强度，有效防止了受力时的松动与转动，进一步提升了模具的整体性能与可靠性。结果表明，该模具通过在下模底部精密布置与气缸驱动件精确匹配的凹槽，实现了驱动件的精准定位与稳固装配，显著减少了模具安装过程中的干涉风险，提高了安装效率与模具运行的稳定性。不仅显著提升了模具的实用价值与生产效能，还为汽车饰件制造领域提供了更为高效、可靠的模具解决方案。

In order to solve the problem of product defects caused by the jamming of upper and lower dies in the hot pressing-injection molding integrated process, the root cause of the jamming of upper and lower dies was deeply analyzed, namely the improper setting of the clearance between upper and lower dies in the die design. Thus, an optimized hot pressing-injection molding integrated die of automobile parts was innovatively designed, and the firm combination of connector and drive component was ensured by using the array-type first countersunk hole and threaded connection with the cylinder drive end. At the same time, the introduction of the second countersunk hole design strengthened the connection strength between insert plate and connector, effectively preventing loosening and rotation when subjected to force, further improving the overall performance and reliability of the die. The results show that the die achieves accurate positioning and stable assembly of the drive parts by precisely arranging grooves on the bottom of lower die that precisely match the cylinder drive parts, significantly reducing the risk of interference during die installation and improving installation efficiency and stability of die operation, which not only significantly enhances the practical value of die and production efficiency, but also provides a more efficient and reliable die solution scheme for the manufacturing field of automobile parts.

基金项目：

科技创新2025重大专项（宁波市重大科技任务攻关项目）（2022Z010）

作者简介：吴军军（1997-），男，博士研究生，E-mail：1713143303@qq.com；通信作者：黄志高（1976-），男，博士，教授，博士生导师，E-mail：huangzhigao@hust.edu.cn

参考文献：

[1]杨乃臣，宋志磊. 一次成型模压纤维板生产工艺之探讨 [J]. 科技传播，2013，5 (14)：98-99.

Yang N C，Song Z L. Discussion on the production process of one time molding fiberboard[J]. Public Communication of Science & Technology，2013，5(14)：98-99.

[2]候典福. 谈一次成型模压纤维板生产工艺 [J]. 农村实用科技信息，2014（9）：62.

Hou D F. Talk about the production process of one time molding fiberboard [J]. Rural Practical Technology Information，2014（9）：62.

[3]陈生超. 长玻纤增强聚丙烯注塑成型中纤维断裂和分布的初步研究 [D]. 郑州：郑州大学， 2013.

Chen S C. Preliminary Study on the Fiber Breakage and Distribution of the Long Glass Fiber Reinforced Polypropylene Injection Molding[D]. Zhengzhou：Zhengzhou University， 2013.

[4]孙莹，梁松俭，唐小琦，等.基于嵌入式控制系统的模内层压成型研究与实现 [J]. 制造技术与机床，2013 (5)：35-39.

Sun Y，Liang S J，Tang X Q，et al. Research and realization of in-mould lamination based on embedded control system [J]. Manufacturing Technology & Machine Tool，2013 (5)：35-39.

[5]陈磊. 汽车内饰件模内层压成型技术研究[D]. 武汉：华中科技大学， 2009.

Chen L. Research on In-mold Injection Technique of Auto-inner Ornament[D]. Wuhan：Huazhong University of Science and Technology， 2009.

[6]胡敏，荆妙蕾，王春红，等.洋麻纤维性能分散性及其复合材料界面结合性能[J]. 塑料工业，2019， 47 (3)：79-82.

Hu M，Jing M L，Wang C H，et al. Dispersion of kenaf fiber performance and its interface bonding properties [J]. China Plastics Industry，2019， 47 (3)：79-82.

[7]黄志高，蔡考群，周华民，等. 塑料成型新工艺:模内层压[J]. 塑料工业，2008， 36 (6)：72-74.

Huang Z G，Cai K Q，Zhou H M，et al. New plastic molding process: In-mold lamination[J]. China Plastics Industry，2008， 36 (6):72-74.

[8]孙锐，袁学虎，周天平，等. 轻质GMT板材在商用车内饰顶棚的开发中的应用及与麻纤维板制品的对比[J]. 汽车零部件，2014 (4)：44-47.

Sun R，Yuan X H，Zhou T P，et al. Applications of low density glass mat thermoplastics in ceiling development of commercial vehicle and compare with bast-fibre panel [J]. Automobile Parts，2014(4)：44-47.

[9]万志远.轿车后地板成形工艺及修边冲孔模具设计[J].锻压技术，2024，49(2):71-76.

Wan Z Y. Forming process and trimming-punching die design of car rear floor[J]. Forging & Stamping Technology，2024，49(2)：71-76.

[10]万志远.轿车前围挡板成形工艺分析及模具设计[J].锻压技术，2024，49(4):76-81.

Wan Z Y. Forming process analysis and die design on car front wall panel [J]. Forging & Stamping Technology，2024，49(4)：76-81.

[11]路全胜，于同敏，徐文波. 注塑工艺条件与塑件质量分析[J]. 模具工业，1992 (6)：26-31.

Lu Q S， Yu T M，Xu W B. Analysis of injection molding process conditions and plastic part quality [J]. Die & Mould Industry，1992 (6):26-31.

[12]李坤全，文睿. 汽车内饰注塑工艺优化、数值模拟及缺陷分析[J].工程塑料应用，2017， 45 (8):139-142.

Li K Q， Wen R. Injection molding process optimization，numerical simulation and defect analysis of automotive interior[J].Engineering Plastics Application，2017， 45 (8):139-142.

[13]罗纲. 注塑模成型常见缺陷及解决方法[J]. 成都纺织高等专科学校学报，2008 (1):28-30.

Luo G. Defects and solutions for injection mold formation [J]. Journal of Chengdu Textile College，2008(1):28-30.

[14]冼嘉其. 一种刷毛模具合模装置启闭模速度的测量方法 [P]. 中国：CN109278266A，2019-01-29.

Xian J Q. A measuring method for the opening and closing speed of the mould closing device of a bristle mould [P].China：CN109278266A，2019-01-29.

[15]孙为朋，孙明东，陈伟华，等. 基于Autoform Sigma的汽车门内板生产稳定性与材料性能的关系[J]. 锻压技术，2023，48（2）：85-93.

Sun W P，Sun M D，Chen W H，et al. Relationship between production stability and material properties on automobile door inner panel based on Autoform Sigma [J]. Forging & Stamping Technology，2023，48（2）：85-93.

[16]赵德勋，李斌. 一种注塑模具防卡死结构 [P].中国：CN219405229U，2023-07-25.

Zhao D X，Li B. An anti-jamming structure for injection molds [P]. China：CN219405229U，2023-07-25.

服务与反馈：

【文章下载】【加入收藏】