The point gate structure of an injection mold which is convenient to be pulled off from the root of the point gate during injection molding includes a point gate sleeve provided in the mold, and the point gate in the point gate sleeve communicates with the cavity of the mold. The gate is a full-tapered tapered hole. The point gate of this product is a full-tapered tapered hole with the same taper from beginning to end. When injection molding, the point gate is easy to break from the root, which greatly improves the accuracy of the product. In addition, this tapered hole can be used It is processed after perforation and wire cutting.

The point gate structure of an injection mold, which is convenient to pull off from the root of the point gate during injection molding, includes: a point gate sleeve provided in the mold, and the point gate in the point gate sleeve communicates with the cavity of the mold. The point gate is a full-tapered tapered hole. The point gate of this product is a full-tapered tapered hole with the same taper from beginning to end. When injection molding, the point gate is easy to break from the root, which greatly improves the accuracy of the product. In addition, this tapered hole can be used It is processed after perforation and wire cutting.

As we all know, wire cutting can greatly improve the finish and accuracy of point gates, shorten the processing time, and improve the processing efficiency. Take the machining of molds for plastic magnetic rotors of indoor and outdoor machines of inverter air conditioners as an example. It only takes about 1 hour.

The injection mold includes an upper mold, a lower mold, and a core. The upper mold is connected to the lower mold through a guide pin. An injection nozzle is provided on the upper mold, and a heating device is provided on the upper mold and the lower mold. The heating device is provided by The hot oil circulation flow channel, oil inlet and oil outlet on the mold body are composed; the upper surface of the upper mold is a flow channel plate, and the lower surface of the flow channel plate has several flow channels, which are installed between the upper mold and the lower mold. There is a middle mold lifting frame, and a huff plate is installed in the middle mold lifting frame; a plurality of cores are evenly installed on the haffle plate, and a core insert is inserted in the center of each core. It is cylindrical, and longitudinal inlays are provided on both sides of the core insert, and the inlay on one side of the core insert is provided with an inclined notch. The product adopts the oblique cooperation of the middle mold insert and the core insert to prevent deformation of the insert, which effectively prevents the insert from colliding when the mold is closed and improves the service life of the mold.



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