Plastic Injection Mold, Injection Mold Maker, Mold Parts, JinHong Plastic Mold Factory

    The ejector pin with support is a reinforced type of round ejector pin. When the diameter of the ejector pin is less than 3.00mm in diameter, considering the service life of the mold and the compressive strength of the ejector pin, it is necessary to add support to ensure the strength of the push rod. When the ejector pin strength is higher than 400.00mm, an ejector pin with a diameter of 4.00mm also needs to consider the compressive strength and use an ejector pin with a bracket. However, it is not ruled out that the mold is very small, there is no spare position to arrange ejector pins, and the tonnage and injection pressure of the injection molding machine will not be so strong.

    According to the shape of the product, when the edge position of the product or the deep bone position cannot place the round ejector pin, the flat ejector pin is used for ejection. When using the flat ejector pin, it is best to cut out the insert at the matching position of the flat ejector pin to facilitate the fitter's mold matching and maintenance. Nowadays, the use of flat thimbles is becoming less and less common in molds. During molding, the flat thimbles are prone to burn out the die, and the long-term production thimbles are easy to wear off iron filings. Especially for export molds, it is required not to use flat thimbles, and directly use straight top blocks instead of flat thimbles. When small round products or products with boss pillars with a depth of more than 10.00mm are used, the use of cylinder pins to eject the products is convenient for product molding and increases. Exhaust effect during injection and filling, and reduce discharge amount during mold processing, saving processing costs. Therefore, almost every set of molds has boss pillars, and products that can meet the position requirements at the same time will use a cylinder needle to assist in product molding.