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Injection molding tool for mfg. disc shape information carrier

A tool, injection molding technology, used in household appliances, optical record carriers, other household appliances, etc., can solve problems such as high cost, reduce wear, prevent damage to tools, and improve quality.

Inactive Publication Date: 2006-08-30
AWM MOLD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage here, however, is that the coating of the components is associated with high costs

Method used

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  • Injection molding tool for mfg. disc shape information carrier
  • Injection molding tool for mfg. disc shape information carrier
  • Injection molding tool for mfg. disc shape information carrier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] figure 1A longitudinal section of a preferred embodiment of an injection molding tool according to the invention is shown in . The illustration is simplified in that the necessary screw connections, springs, seals and operating elements are omitted from the illustration. The injection molding tool 10 shown in the closed state comprises a first (left) mirror panel 11 as a central component, a second (right) mirror panel 12 and a mold ring (breather ring) 20 surrounding the first mirror panel 11 concentrically, Together they constitute the injection mold 25 . The mirror panels 11, 12 fit respectively in a centering ring 13 or 14 which surrounds them concentrically. The information is molded into the injection molded part (data carrier, i.e. disk) during the injection molding process by means of a stamper 19 which acts as a thin The disc rests against the mold surface of the second mirror panel 12 and is held centrally by a sleeve-shaped stamp holder 18 . In order to c...

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PUM

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Abstract

An injection-moulding tool (10) for the production of mouldings in disc form, in particular in the form of information carriers such as CDs and / or DVDs, which injection-moulding tool (10), to form an injection mould (25), includes a first and a second mirror block (11 and 12, respectively), which lie opposite each other and are movable in relation to each other for the opening and closing of the mould, and also a form ring (20), which concentrically encloses the first mirror block (11) and closes off the injection mould (25) towards the outer edge and is movable in relation to the first mirror block (11), better process stability, better quality of the mouldings and shorter waiting times during starting-up are achieved, inter alia, by facilities (26) for active temperature control of the form ring (20) being provided.

Description

technical field [0001] The invention relates to the technical field of injection molding. It relates to an injection molding tool for producing disc-shaped moldings, in particular moldings in the form of information carriers such as CDs and / or DVDs, which injection molding tool comprises first and second mirror panels for constituting the injection mould, They are opposed to each other and are movable relative to each other for opening and closing the mould, and also include a mold ring which concentrically surrounds the first mirror panel and closes the injection mold towards the outer edge and is movable relative to the first mirror panel. [0002] Such an injection molding tool is known, for example, from publication WO-A1-99 / 37471. Background technique [0003] For the manufacture of optically readable information carriers such as audio CDs, CD-ROMs, video CDs or DVDs, injection molding tools are used which are molded by means of two opposing (cylindrical) mirror plates...

Claims

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Application Information

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IPC IPC(8): B29C45/73B29C45/26G11B7/26B29C45/33B29C45/78B29L17/00
CPCB29C45/43B29C2045/2644B29C2045/2648B29C45/263
Inventor 马库斯·加布里埃尔
Owner AWM MOLD TECH