Apparatus and method for the production of a particle foam part
US10625442B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2014 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Sep 11, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/048
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to an apparatus and a method for the production of a particle foam part. The apparatus has a mold 2 with a mold cavity 3, a steam generator 12 to generate steam for feeding into the mold cavity for the thermoplastic welding into a particle foam part of foam particles present in the mold cavity 3, a feed pipe 10, 11 for the feeding of steam to the mold, wherein a controllable steam valve 13, 14 is provided in the feed pipe, and a pressure sensor 15, 16 is located in the area between the steam valve and the mold, in order to measure the pressure of the supplied steam.A control device 23 controls pressure over time according to to a predetermined profile, wherein the profile has a ramp, in order to increase pressure gradually within a predetermined period of time from an initial value to an end value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.