Fitting Mould Manufacturer&Supplier - Spark Mould

The cavity of the half mold is composed of two or more sliders. At the time of mold opening, the slider simultaneously achieves side parting. The stroke of the side core pulling of the half mold is generally small. Half mold can be divided into: fixed mode Half blocks and moving mode Half blocks. Both structures have their own advantages and disadvantages, and can be used for different products. The fixed mold half slider structure is relatively uncomplicated. In the design, pay attention to factors such as stroke, guide block, drive block and so on. The above notes can help you design better.

Among auto molds, auto injection molds are the most common molds. In auto injection molds, there are two main distinctions. One is the exterior and interior parts of the car, and the other is the structural parts. On the complexity of auto mold structure. The car exterior structure is headed by a bumper. Car interiors are led by instruments. Automotive structural parts should be led by automotive air conditioners and intake manifolds.

There are two types of threads on plastic parts: external threads and internal threads. External threads with low accuracy generally use lateral core-pulling mechanism. The internal thread has two structures: forced ejection and automatic ejection. Most automatic unscrew thread injection molds are multi-cavity molds. Excluding larger-sized threaded plastic parts. Multi-cavity threaded injection mold means more mechanisms. This threaded lid mold is relatively simple. The complex thread mechanism can be expanded by referring to this article.

As shown above, this is our company’s recent mold project- 90 degree elbow mold . An injection mold for the production of plastic bends. For plastic elbow molds, the core structure is essential. We use the collapsible mold core, since the structural characteristics of the product different from the traditional PVC 90 degree elbow. Let’s look down. Mold and parameters: The picture above shows the overall appearance of the mold. The Mold size CI3540. How about it? It is like a big hammer. Slider and hydraulic cylinders to make it look very prominent . Product Analysis: Although it is not a big guy. Its structural characteristics have caused us some trouble. Now let’s look at the product. There will be two straight sides on the finished product,the slider cannot slide out directly due to the bend in the product,this is why we have to design a special mold structure for releasing the mold. The design analysis of the mold: According to the product requirements,our engineering department designed an innovative mold structure to solve the issue of mold releasing. The mold will need two sliders for this product, as you can see the image to the right, the first slider is only for the straight section, the second slider needs to go straight and then rotate the core inserts out of the part. Collapsible core: For the mold smoothly，we have to separate the Second slider into 3 core inserts. In fact, this variant core structure is more like a chain. Therefore it is also called chain core structure. To make the product release from the mold smoothly ,we designed and manufactured three pivoting core inserts. It depends on the arc length of the elbow and it has two straight area. The only disadvantage of this structure is that the mold core cannot carry cooling. Only used the method of external cooling .