Equipment and method of making substrate of plastic flooring
US10870266B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 15, 2018 |
| Grant date | Dec 22, 2020 |
| Priority date | — |
| Expiry date | Jan 15, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2471/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Equipment of making a substrate of plastic flooring contains: an extrusion unit, a thickness regulating unit, and a rolling apparatus. The extrusion unit includes an outlet, and the thickness regulating unit including an inlet, a channel, and a cooler. The rolling apparatus includes a first roller, a second roller, and a press roller. The press roller at least includes a contacting roller and a pressing roller, wherein the contacting roller is configured to roll a foaming sheet, a printing layer, and an abrasion resistant layer. Furthermore, a heating unit heats the foaming sheet, the printing layer, and the abrasion resistant layer so that the foaming sheet, the printing layer, and the abrasion resistant layer are connected by using the pressing roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.