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Injection mould of plastic globe

A globe and plastic technology, applied in the direction of coating, etc., can solve the problems of distortion, shrinkage and wrinkling of PVC hemispherical map film, etc.

Inactive Publication Date: 2014-12-03
李一波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the PVC sheet is easy to shrink together and wrinkle when heated. Put the PVC hemispherical map film into the plastic mold, and add plastic injection to make the PVC hemispherical map film heated. If the mold and molding process are not good, it is easy to form The PVC hemispherical map film of the hemispherical plastic shell shrinks, wrinkles, twists and deforms, etc.

Method used

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  • Injection mould of plastic globe
  • Injection mould of plastic globe
  • Injection mould of plastic globe

Examples

Experimental program
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Embodiment Construction

[0011] An injection molding mold for a plastic globe with a plastic sphere and a PVC film map bonded firmly. The technical solution for achieving the above purpose: an injection mold, including a fixed mold 9 , a movable mold 1 , and a top plate 6 . The fixed mold 9 is a concave hemispherical shape, and the fixed mold is provided with positioning nails 11. The effect of the positioning nails 11 is to position the PVC map hemispherical membrane 8. The winding 10 is in the middle of the positioning nails 11, and the parting surface of the fixed mold 9 is opened Exhaust groove 12 is arranged, and two groups of cooling waters are arranged on fixed mold 9, and one group of ice water 4 less than 4 ℃ is on the concave hemispherical top, and another group of normal temperature cooling water 3 is on the concave hemispherical top. The movable mold 1 is a raised hemispherical shape, and the movable mold 1 is provided with a runner 5 at the top of the raised hemispherical shape, so that t...

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PUM

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Abstract

An injection mould of a plastic globe comprises a fixed mould, a moving mould and a top plate. The fixed mould is a concave hemisphere. The fixed mould is provided with a locating pin. A reel port is arranged in the center of the locating pin. A mould joint of the fixed mould is provided with an air discharge duct. The moving mould is a convex hemisphere. The top of the convex hemisphere of the moving mould is provided with a runner. The moving mould is provided with a concave R buckling part. Two groups of cooling water are arranged on the mould. One group of ice water of less than 4 DEG C is mounted on the top of the hemisphere, and the other group of normal-temperature cooling water is arranged on the bottom of the hemisphere. A cavity of the mould is a hemisphere shell of the globe.

Description

technical field [0001] The invention relates to a processing technology of a toy and a teaching instrument, in particular to an injection molding mold of a plastic globe. Background technique [0002] The globe is a common tool for imparting geographical knowledge to people, and it is also an indispensable teaching aid for teaching geography and earth knowledge to primary and secondary schools. In the traditional plastic globe technology, the globe is manually embedded with a 12-petal "boat-shaped" picture on a sphere, or the southern hemisphere is formed by combining the hemispherical plastic shell with the southern hemisphere map printing layer, and then using the hemispherical plastic shell to print the northern hemisphere map Layers are stacked to form the northern hemisphere, and the southern hemisphere and the northern hemisphere are spliced ​​to form a whole sphere. These two types of globes are difficult to make, time-consuming and laborious. The latitude lines, grou...

Claims

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Application Information

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IPC IPC(8): B29C45/26B29C45/14B29K55/02
CPCB29C45/14065B29C45/2602B29C45/73B29K2055/02
Inventor 李一波
Owner 李一波
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