Cooling fetch method of preforms
a fetching method and preform technology, applied in the field of manufacturing procedures of preforms, can solve the problems of lowering the yield rate, affecting air tightness, and delay in the whole injecting process
Inactive Publication Date: 2011-05-19
JET ENGINE AUTOMATION
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- Application Information
AI Technical Summary
Benefits of technology
This approach separates injection molding from cooling, improves yield rates, ensures even cooling, prevents deformation, reduces energy consumption, and increases manufacturing efficiency by allowing continuous injection molding without interruptions.
Problems solved by technology
However, the longer cooling time of the preforms in the mold will take up the next injection molding time of the mold, and thus causing a delay to the whole injecting process and lowering the yield rate.
As a result, the bottle mouth of each preform 3 may be deformed easily, and the airtightness will be affected adversely when the bottle mouth and the bottle cap of each preform 3 are engaged with each other.
However, the volume of the movable mold 1 and the cooling device 4 for this fetch method is very large, and thus occupying much space in a factory.
Method used
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Embodiment Construction
[0033]The objective, technical measures and performance of the present invention will become apparent in the detailed description of the preferred embodiments with reference to the accompanying drawings as follows:
[0034]Referring to FIGS. 1 and 2 for a cooling fetch apparatus of preforms in accordance with the present invention, the apparatus is installed on a side of an injection molding machine 11, and the injection molding machine 11 has a mold 12 that can be clamped and opened repeatedly. The clamped mold 12 forms a plurality of airtight mold cavities 14 provided for injecting a melted plastic liquid into the mold cavities 14, forming a plurality of preforms 21 after a shaping time, and removing the preforms 21 from the mold 12 by the cooling fetch apparatus of the invention after the mold 12 is opened. The cooling fetch apparatus comprises a first fetch mechanism 31 and a second fetch mechanism 41.
[0035]The first fetch mechanism 31 includes a rail 32, a first transmission arm 3...
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Abstract
The present invention discloses a cooling fetch method of preforms, and the method includes: using a first fetch mechanism for fetching each preform formed in a mold of an injection molding machine from the mold; a second fetch mechanism for fetching each preform on the first fetch mechanism. After the second fetch mechanism fetches a predetermined quantity of preforms, the preforms on second fetch mechanism are unloaded sequentially, such that the injection molding process and the cooling process of the preforms are separated. The timing of fetching each preform on the second fetch mechanism is controlled for assuring a good cooling effect of each preform.
Description
CROSS-REFERENCE TO RELATED APPLICATION[0001]The application is a Divisional application of Ser. No. 12 / 068,646, filed Feb. 8, 2008, and entitled “Cooling fetch apparatus of performs and cooling fetch method thereof”, now pending.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a manufacturing procedure of preforms, and more particularly to a cooling fetch method.[0004]2. Description of the Related Art[0005]Traditional preform injection molding machine forms a plurality of airtight closed mold cavities when a mold is clamped, and fills up the mold cavities with a melted plastic liquid after the melted plastic liquid is injected into the mold cavities. The preforms are condensed and shaped after a predetermined time of sitting still and lowering the temperature, and then the mold is opened, and an ejector is used for ejecting the preforms from the mold cavities to complete the whole manufacturing procedure of the preforms.[0006]To cool a...
Claims
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IPC IPC(8): B29C45/72B29C35/16
CPCB29C45/7207B29K2105/253B29C2045/7214
Inventor CHEN, LE HUANG
Owner JET ENGINE AUTOMATION