1. Field of the Invention
The present invention generally relates to a molding, and more particularly, to a shaping mold for products with a circular hole.
2. Description of Prior Art
With the development of electronic technology, miniaturization for the portable electronic productions is a trend of development. Therefore, higher requirements to the accuracy and the quality of the shaping process for the products become essential. Please refer to
However, a general pin mold core easily rotates when a product is shape molded and result in that the dislocation of ends of the pin mold core and the moving half mold for proceeding the insert and shut off operation. Therefore, the requirements of accuracy and the quality for the products cannot be satisfied.
For solving the drawbacks of aforementioned prior art, the present invention provides a shaping mold for products with circular hole by high shaping accuracy of the products.
For realizing the aforesaid objective, the shaping mold for products with circular hole comprises a male mold and a female mold corresponding thereto. The male mold and the female mold form a core cavity therebetween after the shaping mold is closed. The male mold comprises a mounting hole, a limitation mold core and a pin mold core capable of slidably dipping into the core cavity. The female mold comprises a female mold core capable of slidably dipping into the core cavity. The limitation mold core is installed in the mounting hole. A circular slide hole is formed in the limitation mold core. Limitation boards are formed on the periphery of the circular slide hole at one end of the limitation mold core. The pin mold core is roughly column shaped and positioned in the circular slide hole. A mating face is formed on a side face of one end of the pin mold core and a limitation head is formed at the other end of the pin mold core to match with the limitation boards. A square hole shaping portion is formed at one end of the female mold core. The mating face and the inner face of the square hole shaping portion compress with each other after the shaping mold is closed.
As aforementioned, with the limitation head and the limitation boards buckling up, the shaping mold of the present invention restricts the pin mold core not rotated in the core cavity to prevent the dislocation of the mating face and the square hole shaping portion happening during the insert and shut off operation. Accordingly, the shaping accuracy of the products can be guaranteed.
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The shaping mold 200 for products with circular hole comprises a male mold 2 and a female mold 3 corresponding thereto. The male mold 2 and the female mold 3 form a core cavity 4 therebetween after the shaping mold 200 is closed. A limitation mold core 21 and a pin mold core 22 capable of slidably dipping into the core cavity 4 are installed in the male mold 2. A female mold core 31 capable of slidably dipping into the core cavity 4 is installed in the female mold 3.
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As aforementioned, with the limitation head 223 and the limitation boards 212 buckling up, the shaping mold 200 of the present invention can restrict the pin mold core 22 not rotated in the core cavity 4 to prevent the dislocation of the mating face 222 and the square hole shaping portion 311 happening during the insert and shut off operation. Accordingly, the shaping accuracy of the products can be guaranteed.
As is understood by a person skilled in the art, the foregoing preferred embodiments of the present invention are illustrative rather than limiting of the present invention. It is intended that they cover various modifications and similar arrangements be included within the spirit and scope of the appended claims, the scope of which should be accorded the broadest interpretation so as to encompass all such modifications and similar structure.