Mould structure of slender tubular product
A tubular and product technology, applied in the field of mold structure of slender tubular products, can solve the problems of unreliable positioning of the slender core of the rear mold, the product does not meet the technical requirements, and the product has eccentricity, etc. Reliable and ensure the effect of positioning accuracy
Inactive Publication Date: 2012-01-25
VANGUARD TECH WUXI
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Problems solved by technology
[0002] Existing molds for slender tubular products, such as test tube molds, the positioning of the slender core of the rear mold is unreliable, and elastic deformation occurs under strong injection pr
Method used
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[0007] see figure 1 , Which includes a front mold 1, a rear mold 2, a circular core outside the tube 3, an elongated core 4, a fixed sleeve 5, a front mold 1, a rear mold 2, a circular core outside the tube 3, and an elongated core 4 The cavity of is a cavity, the cavity is the product 6 to be molded, the fixed sleeve 5 is sleeved on the middle and lower outer circular surface of the elongated core 4, the bottom of the elongated core 4 is fastened to the fixed plate 7, and the shaft is fixed Sleeve 5. The gap 8 of the elongated core 4 is fitted with a steel ball bushing 9 inside the plug. The steel ball bushing 9 is sleeved on the outer surface of the elongated core 4, and the outer surface of the steel ball bushing 9 fits the fixed shaft sleeve 5. Inner round surface.
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The invention provides a mould structure of a slender tubular product, which is used for ensuring the reliability in locating a slender mould core of a back mould, preventing a manufactured product from being eccentric, ensuring that the wall thickness of the product is even, and further enabling the product to meet the technical requirements. The mould structure of the slender tubular product comprises a front mould, a back mould, a tube body excircle mould core, a slender mould core and a fixed shaft sleeve, wherein a cavity among the front mould, the back mould, the tube body excircle mould core and the slender mould core is a diccavity; the fixed shaft sleeve is sleeved on the excircle surface at the middle-lower part of the slender mould core; and the bottom of the slender mould core is tightly fixed on a fixed plate. The mould structure of the slender tubular product is characterized in that a gap between the fixed shaft sleeve and the slender mould core is internally provided with a steel ball liner in a filling manner, the steel ball liner is sleeved on the excircle surface of the slender mould core, and the outer surface of the steel ball liner is attached to the inner circle surface of the fixed shaft sleeve.
Description
technical field [0001] The invention relates to the technical field of injection mold structures, in particular to the mold structure of elongated tubular products. Background technique [0002] Existing molds for slender tubular products, such as test tube molds, the positioning of the slender core of the rear mold is unreliable, and elastic deformation occurs under strong injection pressure, resulting in eccentricity of the product, so the produced product often occurs eccentricity This leads to uneven wall thickness, which makes the product fail to meet the technical requirements. Contents of the invention [0003] The invention provides a mold structure for a slender tubular product, which ensures reliable positioning of the slender core of the rear mold, prevents eccentricity of the manufactured product, ensures uniform wall thickness of the product, and further enables the product to meet technical requirements. [0004] The mold structure of a slender tubular produ...
Claims
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Inventor 张卫
Owner VANGUARD TECH WUXI
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