Mould
A mold and master mold technology, which is applied in the field of molds with high eccentricity precision, can solve problems such as mold core inclination, reduction of mold eccentricity precision, lower top plate inclination, etc., to achieve the effect of avoiding inclination and improving eccentricity precision
Inactive Publication Date: 2011-04-27
ZHONGSHAN XUJIN PLASTIC MOULD CO LTD
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AI Technical Summary
Problems solved by technology
After the thimble pushes the top mold core, it will return to its position driven by the lower top plate. During the return process, the lower top plate may tilt, causing the thimble fixed on the lower top plate to also tilt.
The mold core may also be inclined under this action, thereby reducing the eccentricity accuracy of the mold and seriously affecting the quality of injection molded products
Method used
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Embodiment Construction
[0012] The mold provided by the technical solution will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0013] Please also refer to Figure 1 to Figure 3 , The mold 20 provided by the embodiment of the technical solution includes an ejection mechanism 10 , a male mold 21 , a male mold core 22 , a female mold 23 , a female mold core 24 and a female mold core pad 25 . The male die 21 is opposite to the female die 23, the male die core 22 is accommodated in the male die 21, and the female die core 24 is accommodated in the female die 23 for matching with the male die. Kernels 22 cooperate to form mold cavities to form products.
[0014] The ejection mechanism 10 includes a lower top plate 11, an upper top plate 12, a gasket 13, a thimble 14, a first fixing member 15, a bearing plate 16, a limit cylinder 17, a positioning pad 18 and a plurality of second fixing members 19 .
[0015] The lower top plate 11 can be a square plate with ...
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The invention relates to a mould which comprises a male mould, a male mould kernel, a female mould, a female mould kernel and an ejecting mechanism. The male mould is opposite to the female mould. The male mould kernel is contained in the male mould. The female mould kernel is contained in the female mould and used for being matched with the male mould kernel to form a mould cavity for molding products. The ejecting mechanism comprises a lower ejecting plate, an ejecting needle, a supporting plate and a limiting barrel body. The supporting plate is opposite to the lower ejecting plate and provided with a containing hole along the central axis direction of the male mould kernel. The limiting barrel body is fixed in the containing hole of the supporting plate and provided with a limiting hole drilled along the central axis direction of the male mould kernel. The ejecting needle comprises an ejecting rod and an ejecting block which are mutually matched. The ejecting rod is fixed on the lower ejecting plate, and the ejecting block moves in the limiting hole along the central axis direction of the male mould kernel under the driving of the lower ejecting plate and the ejecting rod to push and eject the male mould kernel.
Description
technical field [0001] The invention relates to the technical field of molds, in particular to a mold with high eccentricity precision. Background technique [0002] Injection molding is widely used in the production of plastic materials due to its advantages of low cost, high efficiency, and high precision, especially injection molding of small precision components, such as micro lenses, lens barrels and other products. For details, please refer to the paper "Injection molding of binary optical elements" published by Robert D.TeKolste et al. ". [0003] In the injection molding process, the molten molding material is usually filled into the molding cavity of the mold under high pressure. After the molding material is cooled and formed, the ejector mechanism is used to push the core of the mold to release the injection molded product, so as to obtain the desired shape. The product. [0004] The ejection mechanism of the existing mold usually includes an ejector rod, a low...
Claims
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IPC IPC(8): B29C33/30B29C33/44B29C45/26B29C45/40
CPCB29C45/401
Inventor 黄建峰
Owner ZHONGSHAN XUJIN PLASTIC MOULD CO LTD