Title:
CONCENTRIC-RING SINGLE-SIDED DOVETAIL GROOVE CERAMIC TILE BACK MOLD CORE AND MANUFACTURED CERAMIC TILE
Document Type and Number:
WIPO Patent Application WO/2022/062746
Kind Code:
A1
Abstract:
A concentric-ring single-sided dovetail groove ceramic tile back mold core. Back mold core surface vulcanized rubber comprises raised patterns and recessed patterns, which are integrally formed, pasted on and cover a back mold core iron base body, wherein the raised patterns equidistantly shift outwards layer by layer, with the central position of a back mold core as the center; and the side of each raised pattern that is close to the center is of an equiangular obtuse angle, and the side of each raised pattern that is away from the center is of an acute angle with the angular equal difference gradually decreasing. During a ceramic tile green body pressing process, the acute angles of the sides of the raised patterns that are away from the center form single-sided dovetail grooves for the back pattern of a ceramic tile; and in a ceramic tile green body demolding stage, the single-sided dovetail grooves formed on a ceramic tile green body transversely move away from the acute angles of the raised patterns by means of outward deformation movement when the ceramic tile green body releases self-stress, such that smooth demolding is achieved. A concentric-ring single-sided dovetail groove back pattern ceramic tile is manufactured by using the concentric-ring single-sided dovetail groove ceramic tile back mold core of the present invention. A ceramic tile trademark or ceramic tile information is located in the central area of the back face of the ceramic tile. After the ceramic tile is split from the middle center line, the section of a fractured ceramic tile back pattern is of a zigzag shape from the middle to two sides.
Inventors:
CHEN RUI (CN)
Application Number:
PCT/CN2021/112040
Publication Date:
March 31, 2022
Filing Date:
August 11, 2021
Export Citation:
Assignee:
CHEN RUI (CN)
International Classes:
B28B7/28; B28B3/00; B28B7/20; E04F15/02
Foreign References:
| CN112060290A | 2020-12-11 | |||
| CN111590732A | 2020-08-28 | |||
| CN208215608U | 2018-12-11 | |||
| CN2463156Y | 2001-12-05 | |||
| CN108466355A | 2018-08-31 | |||
| US20080098689A1 | 2008-05-01 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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