Method and device for manufacturing artificial marble having stripe pattern

A device for manufacturing artificial marble having a stripe pattern, comprising:

• a belt moving in a first direction;
• a molding box disposed on the belt;
• a supply unit that provides slurries with different colors into the molding box;
• and
• a line mixer including two or more inlets and one outlet, and a plurality of curved blades therein, wherein the line mixer provides two or more types of slurries with different colors, which are provided from a raw material tank to the inlets and partially mixed, to the supply unit through the outlet,
• wherein the molding box has predetermined width and height to be filled with the slurries provided from the supply unit,
• wherein the molding box includes a roller at a side of the molding box in the first direction, and the roller is disposed to be spaced a predetermined distance apart from the belt in a vertical direction,
• wherein the supply unit includes a plurality of nozzles disposed across the first direction, and the plurality of nozzles allow the plurality of slurries with different colors to be provided into the molding box parallel to the first direction,
• wherein the number of nozzles is larger than the number of the inlets of the line mixer,
• wherein in the side of the molding box in the first direction, a downflow of the slurry occurs due to a vortex,
• wherein in a side of the molding box in a second direction, which is opposite to the first direction, an upflow of the slurry occurs due to the vortex,
• wherein the predetermined height of the molding box is greater than the predetermined distance between the roller and the belt,
• wherein a surface of the slurry contained in the molding box has the stripe pattern based on the downflow and upflow,
• wherein the predetermined distance between the roller and the belt is 1 mm or more and 60 mm or less,
• wherein the roller rotates to discharge a part of the slurries contained in the molding box, and
• wherein the roller is disposed to be rotated in the first direction at the discharge point of the part of the slurries.