Many CAD/CAM users are looking forward to seeing 3D2012 finally meet with you. As a cost-effective CAD/CAM software, Zhongwang 3D has been committed to providing CAD/CAM integrated solutions for customers. With the launch of the 2012 version, the functions and performance of Zhongwang 3D have once again made a significant leap, meeting the needs of CAD/CAM users. Today, I will share with you the experience of the 3D2012 parting surface design!
In the injection mold, the design of the parting surface directly affects the quality of the plastic part, the structure of the mold and the difficulty of operation, and is one of the key factors for the success of the injection mold design. In the design of Zhongwang 3D mold, the existing product model can be used to quickly complete the mold by establishing mold assembly model, setting shrinkage rate, drafting slope inspection, parting surface design, trimming to core, cavity and other processes. The design of the molded part, and finally the design of the complete set of molds through the formwork system. In the entire CAD/CAM design process, the design of the parting surface is the most complicated and time-consuming. The improvement of Zhongwang 3D provides a powerful method for this.
First of all, the CAD/CAM design of the parting surface should follow the following principles:
(1) The mold structure should be as simple as possible. If the lateral division is avoided or reduced, the profiled surface is used to reduce the movement and the fixed mold to reduce the processing difficulty.
(2) Conducive to the smooth demolding of plastic parts. If the mold is left as far as possible after the mold is opened, the ejector mechanism on the injection molding machine is used to avoid the lateral long distance core pulling to reduce the size of the mold.
(3) Guarantee the dimensional accuracy of the plastic parts. If you want to set the part with dimensional accuracy requirements on the same module to reduce manufacturing and assembly errors.
(4) Does not affect the appearance quality of the plastic parts. In the inevitable occurrence of flash at the parting surface, it should be avoided to design the parting surface on the smooth surface.
(5) Ensure the smooth exhaust of the cavity. If the parting surface is as close as possible to the last filled cavity surface to facilitate the cavity exhaust.
Zhongwang 3D adds design area function for this purpose. The design area refers to the system to analyze and inspect the cavity and core surface according to the user's settings, including whether the slope of the product release is reasonable, whether the internal hole is repaired, etc. When commanding, Zhongwang 3D can automatically judge whether each face of the product belongs to the core or the cavity surface according to the direction of the face (drawing). If the face cannot be judged, it is divided into the “undefined†category, and the color is used to distinguish the above three. The surface can let the user manually specify the core and cavity surface, which provides a good way for the generation of the parting surface.
The operation is as follows:
First, click on the (Define Core, Cavity) Surface Function pop-up core cavity color definition dialog box. The automatic option function provides us with two categories of automatic definition and manual definition, as shown in the following figure:
When we choose to define automatically, given a mold opening direction, it can automatically distinguish all the faces of the product. For more complex products, you can flip the moving graphics to see if the distribution of each surface is reasonable, some unreasonable faces or difficult to distinguish faces. Click on the manual definition to change the selected face to the cavity or core until the undefined area is 0, then all faces are assigned to the core and cavity face. As shown below:
Continue to perform, separate core cavity function. Select all the faces, the software automatically extracts the parting line according to the color surface assigned to the core and cavity in front of us, and divides the forming cavity and the core surface by line, as shown below:
To achieve this, the implementation of these steps lays the foundation for our automatic construction of the parting surface, draws a sketch border, and performs the “parting surface†function to generate the following parting surface:
The construction method of the parting surface is various. Combining the structural characteristics of the plastic part and the mold structure to be used, selecting the appropriate parting surface method is the prerequisite for ensuring the smooth design of the mold. As a cost-effective 3D CAD/CAM software, the improvement of Zhongwang 3D2012 design area provides a good way for parting surface design.
In addition to this improvement, as a cost-effective CAD / CAM software, Zhongwang 3D2012 also has strong data compatibility, efficient and intelligent modeling, full-process plastic mold solutions and advanced intelligent CNC machining... ...so many functional improvements and innovations make you want to experience it? If you are not as good as your heart, go ahead and download the 3D2012!
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