Colored plastics molding device having an automatic calibration function
US6669358B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2002 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Mar 12, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/0032
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A colored plastics molding device can perform automatic calibration, and thus colorant can be charged, being free from wrong calculation and error, and therefore, high-quality colored plastics molded items can be obtained. The colored plastics molding device 1 comprises a hopper 2 which stores a raw plastics material for molding having a thermoplasticity and discharges the raw plastics material stored; a cylindrical transfer member 3 which transfers the raw plastics material from this hopper 2; a colorant supply device 5 which supplies a liquid colorant to the inside of the transfer member 3, the discharge end of a freely replaceable nozzle 23 being disposed there; a conveying device 4 which mixes the raw plastics material fed through the transfer member 3 with the colorant, while conveying the mixture for molding; a detection device 12 which detects the conveying state of the conveying device 4; and a control part 25 which performs operation control of the colorant supply device 5 on the basis of the result of detection by this detection device 12; wherein the colorant supply device has an automatic calibration function which allows automatic setting of the quantity of liquid colo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.