Selective in-mold bonding 4D injection molding device and product deformation regulation and control method

By using a selective in-mold bonding 4D injection molding device and method, temperature and pressure gradients are established within the mold cavity using inserts. Combined with response surface methodology and artificial intelligence, the production of diverse products from the same mold is achieved, solving the problem of product shape and function control in existing technologies and improving production efficiency and precision.

CN121589974APending Publication Date: 2026-03-03BEIJING UNIV OF CHEM TECH
3 Cites 0 Cited by

Patent Information

Application Number
CN202512027988.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing injection molding technology makes it difficult to produce "one-to-one" products, cannot control the shape and function of products with large deformations through process parameter adjustment, and does not introduce a time dimension for active control of warpage deformation.

Method used

A selective in-mold bonding 4D injection molding device is used to establish a non-uniform temperature and pressure gradient by embedding blocks of specific shapes and sizes in the mold cavity. By utilizing time-related cooling and depressurization processes, combined with response surface methodology and artificial intelligence algorithms, programmable control of the product shape and deformation can be achieved.

Benefits of technology

It enables the batch production of products with different shapes and functions using the same mold, reduces mold replacement costs, and improves the flexibility and precision of product manufacturing. It is suitable for manufacturing products made of various materials and with complex shapes.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a selective in-mold bonding 4D injection molding device and a product deformation regulation and control method, and belongs to the technical field of material molding. The device comprises an injection molding machine, a mold and a selective in-mold bonding system consisting of a mechanical arm, a gripper, an insert block and a control system. The method comprises the following steps: designing and preparing an insert serving as a part of a product; the insert block is positioned and fixed to a preset position of a mold cavity through a mechanical arm; injection molding is carried out, so that the molten material and the insert block are bonded in the mold; and ejecting the product. According to the invention, the specific insert block is selectively embedded into the mold cavity, non-uniform temperature and pressure gradients are actively established in space and time dimensions, and the spatial and temporal distribution difference of material volume shrinkage is regulated and controlled, so that the buckling deformation of a product is accurately controlled. And in combination with a response surface method or an artificial intelligence algorithm, process parameters can be reversely deduced according to target deformation, programmable control of product shapes and batch production of'different models' are realized, and the production flexibility and the intelligent level are greatly improved.
Need to check novelty before this filing date? Find Prior Art