Collaborative adaptation of mold design and mold punch

2026-02-02 11:48:47

The core logic of the multi-color mold core design project is to achieve collaborative operation of various COMPONENTS. The adaptation design of the mold punch needs to deeply integrate key links such as multi-color injection combination, sprue system, molding equipment matching, and mold seat structure design, to ensure that the punch can efficiently cooperate with other components and ensure the continuity and stability of multi-color molding.

1. Multi color injection combination method: The selection of multi color injection combination method needs to be combined with the action logic and forming requirements of the mold punch. Common combination methods include rotary, translational, etc. For rotating multi-color molds, it is necessary to design a mold punch structure that coordinates with the rotating action to ensure that the punch can accurately align with the mold cavity during the rotation process, achieving continuous stamping and bonding of different colored blanks; For translational multi-color molds, it is necessary to optimize the positioning mechanism of the punch to avoid drift during the translational process and ensure the splicing accuracy of multi-color blanks. At the same time, the number and layout of PUNCHES should be determined based on the combination method to ensure that each color forming process has corresponding punches to perform stamping, ejection, and other actions.

2. Pouring system: The optimized design of the pouring system not only affects the injection efficiency and product quality, but also provides a guarantee for the stable operation of the mold punch. A reasonable gating system must meet the following core requirements and be compatible with the punch: (1) Low injection pressure: it can reduce the reverse pressure borne by the punch, reduce punch wear, and extend its service life; (2) Rapid filling completion can increase production: shorten the waiting period of the punch, achieve efficient connection between punch action and injection process; (3) Can be uniformly injected, with good product quality: ensuring uniform density of the blank forming, avoiding force imbalance caused by uneven density of the blank during punch stamping, and improving product size consistency; (4) Reduce waste and shorten injection time: Reduce the subsequent cleaning of waste by the punch, simplify the punch operation process, and improve overall production efficiency.

3. Molding equipment adaptation: The detailed parameters of the molding equipment need to be accurately matched with the mold punch to avoid punch failure or product defects caused by inconsistent equipment parameters. The core adaptation points include: (1) the injection volume of each injection material cylinder: determine the corresponding material cylinder according to the amount of different colored blanks, and match the stamping force of the mold punch to ensure that the blanks can be accurately shaped by the punch after injection; (2) The position and stroke of the striking rod: The position of the striking rod should be accurately aligned with the installation position of the mold punch, and the stroke of the striking rod should be strictly matched with the punching and ejection stroke of the punch to ensure that the punch action is in place and the force is uniform; (3) Configuration issues with the water, oil, and electrical circuits on the rotating disc: The water and oil circuits need to avoid the movement trajectory of the mold punch to prevent interference between the pipeline and the punch; The circuit configuration needs to ensure stable power supply for the positioning sensors and driving components related to the punch, to ensure precise and controllable punch action; (4) The load-bearing capacity of the rotating disk: It is necessary to fully consider the weight of the mold punch and the impact force during operation, to avoid overloading the rotating disk and causing displacement, which will affect the positioning accuracy of the punch.

4. Mold seat design: The configuration design of the mold core is the core of mold seat design, which needs to prioritize meeting the rotation and clamping requirements of multi-color molding, while ensuring the stable assembly and precise operation of the mold punch. The core design points are as follows: Firstly, the male side of the mold needs to be rotated 180 degrees, and the mold kernels must be arranged in a cross symmetrical manner. The installation position of the mold punch needs to be synchronously adapted to this symmetrical layout to ensure that the punch can accurately align with the mold cavity after rotation and achieve mold forming; Secondly, the design of each key component needs to take into account the adaptation of the punch: (1) guide post: it has the function of guiding the male and female molds, and must maintain a high degree of concentricity in the multi-color mold to provide precise motion guidance for the mold punch and avoid punch offset; (2) Return pin: As the mold needs to rotate, the ejector plate needs to be fixed. A spring is added to the return pin to keep the ejector plate stable, thereby ensuring accurate return of the mold punch and avoiding punch jamming; (3) Positioning block: Ensure that the two mold seats are fixed to the large fixed plate without displacement due to screw clearance, providing a stable installation foundation for the mold punch and ensuring the positioning accuracy during punch operation; (4) Adjustment block (wear-resistant block): used for adjusting the Z-coordinate error of the mold height during mold clamping, which can indirectly optimize the stamping stroke of the mold punch and ensure precise fit between the punch and the mold cavity; (5) Top out mechanism: The top out method is the same as that of a general mold, and it needs to be coordinated with the action of the mold punch to ensure that after the punch completes stamping, the top out mechanism can smoothly push out the product, avoiding product adhesion to the punch; (6) Cooling circuit design: The cooling circuit design of mold one and mold two should be as similar as possible to ensure uniform temperature of the entire mold and avoid thermal deformation of the punch caused by temperature differences, which may affect its accuracy and service life.

Core Principles and Values of Die Punch Fit Design

The adaptive design of mold punch is the core link of multi-color mold design, and its design quality directly determines the quality and production efficiency of multi-color molded products. The core design principles should follow "precise adaptation, collaborative operation, wear resistance and durability" - precise adaptation of molded products and molding equipment parameters to ensure accurate punch action; Coordinate the operation logic of various components to avoid interference between the punch and other components; Selecting high-quality materials and optimizing structural design to enhance the wear resistance and service life of the punch.

In the production of multi-color molds, the precise adaptation of the mold punch can effectively reduce defects such as product overflow, loose fitting, and dimensional deviation, and improve the product qualification rate; At the same time, it can optimize the production process, achieve efficient collaboration between punch action, injection, rotation, mold closing and other links, and improve production efficiency. For mold design and manufacturing enterprises, attaching importance to the adaptive design of mold punches and integrating it into the entire process of early review and core design is a key measure to enhance the competitiveness of multi-color molds.