Method and apparatus for manufacturing magnetic drawing board

摘要

The present invention provides a method and apparatus for manufacturing a magnetic drawing board having a plurality of areas, each of which is designated with a specific color, with clear border between adjacent areas of different color. The present invention makes use of magnetic force to ensure that magnetic particles of a specific color will be filled into cells designated for that specific color. As a result, the present invention is capable of manufacturing a magnetic drawing board with a clear division of areas of different colors. There is no longer any limitation on the size and shape of the areas of different colors in the present invention.

主权项

1. A method of manufacturing a magnetic drawing board, wherein the method comprises the steps of:
(1) Providing a receiving member having a plurality of cells for receiving magnetic particles, wherein the cells are divided into a plurality of areas and each of the areas is designated for receiving magnetic particles of a specific color; (2) Positioning a magnetic board on top of magnetic particles of a first specific color so that the magnetic particles of the first specific color are attracted to the magnetic board, and thereafter positioning the magnetic board attracted with the magnetic particles of the first specific color in relation to the receiving member in such a way that by means of a magnet having a magnetic force stronger than that of the magnetic board the magnetic particles of the first specific color are attracted from the magnetic board to the cells of the receiving member which are within a first one of the plurality of areas designated for receiving magnetic particles of the first specific color; (3) Repeating step (2) to fill the cells of the receiving member which are within a subsequent one of the plurality of areas designated for receiving magnetic particles of a subsequent specific color, until all the cells of the receiving member are filled with magnetic particles; (4) Filling all the cells of the receiving member with dispersion medium; and (5) Attaching an upper substrate onto the receiving member in a sealed manner so that the cells are sealed from each other, thereby forming the magnetic drawing board.