A gas pin assembly used for an air-flow auxiliary injection mould
A technology for injection molds and air needles, which is applied in the field of air needle components for air-flow assisted injection molds. It can solve the problems of easy-to-block air threads, uneven air output from fixed-type air needles, and failure of easy-sliding teeth, etc., so as to solve the problem of air-blocking , good effect, stable production effect
Inactive Publication Date: 2015-09-09
ZHUHAI GREE DAIKIN PRECISION MOLD
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Problems solved by technology
[0003] In view of the above-mentioned current state of the art, the present invention provides an air needle assembly for air-assisted injection molds, which solves the problem that the air output of the existing fixed air needle is not uniform enough, it is easy to block the air, and the thread between the air needle sleeve and the air needle core is easy to slip. tooth failure problem
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[0026] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0027] figure 1 It is a schematic diagram of an exploded structure of an air needle assembly for an air-assisted injection mold in one embodiment of the present invention, figure 2 and image 3 It is a schematic diagram of the cross-sectional structure of the air needle assembly. Such as Figure 1-3 As shown, the air needle assembly includes: an air needle cover 1, an air needle core 3, an elastic component 3 and a limit assembly.
[0028] Wherein, the air needle cover 1 is used to be installed in the installation hole of the mold cavity, preferably, the installation hole is a threaded hole, and the outer wall of the air needle cover 1 is provided with a hole that matches the installation hole. The first exte...
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A gas pin assembly used for an air-flow auxiliary injection mould is disclosed. The gas pin assembly comprises a gas pin sleeve, a gas pin core and a limiting assembly, wherein the gas pin sleeve is installed in an installing hole of a mould cavity, comprises a first end and a second end along the gas feeding direction, and is provided with a first center hole extending along the axial direction; the gas pin core can be movably disposed in the first center hole and comprises a core body and a core head; when the gas pin core is at a closed position, the core head moves to the inside of the first center hole to block the first center hole; when the gas pin core is moved to an open position under the action of gas pressure, the core head is moved outside of the first center hole, and a gas channel for air flow to pass through is formed between the core body and the wall of the first center hole; and the limiting assembly is used for limiting the gas pin core at the reverse direction of the gas feeding direction. The gas pin core is movably disposed, so that the problem of gas blockage of fixed type gas pins at present is overcome, and the problem that threads of movable gas pins are too small and liable to break is overcome, Production is stable and effects are good.
Description
technical field [0001] The invention relates to the field of molds, in particular to an air needle assembly for an airflow assisted injection mold. Background technique [0002] In injection molds, for products with thick glue positions, in order to ensure that the appearance of the product does not shrink and reduce the weight of the product, air-assisted injection molding technology is more and more widely used. The existing air needle structure is a fixed structure of the air needle core, and the air needle cover and the air needle core are fixed with threads. The fixed air needle has the following defects: the air output is not uniform enough, and it is easy to be blocked. When the product is injected, the glue position of the product is too thick, and the surface shrinks and affects the appearance of the product. Moreover, the thread between the air needle sleeve and the air needle core is too small, which is easy to slip and fail. Contents of the invention [0003]...
Claims
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IPC IPC(8): B29C45/17
CPCB29C45/1705B29C45/0025
Inventor 陈荣华盛继峰
Owner ZHUHAI GREE DAIKIN PRECISION MOLD