Abstract: This invention relates to an interlocking type plastic tile structure in which the surface layer having a pattern thereon is coated with adhesive and then is combined with a PVC base layer adhered to the floor. A plurality of protruding tongues and a plurality of notches are respectively formed on two adjacent sides of the PVC base layer. With this structure, when two such plastic tiles are interlocked with respect to each other, the notches having adhesive layer are interlocked and adhered with the protruding tongues correspondingly so as to achieve assembly and good alignment. Besides, there is no need for providing release paper, therefore cost can be saved and assembly is very convenient.

Abstract: A printing machine for plastic tile with a feeding correction device comprises a central electric sensing eye disposed on a first layer of the plastic tile for detecting a position of the tile. The first layer further has a length-sensing line detected by an electric length-sensing eye. The printing machine further has a calculation unit capable of caculating data from the electric eyes for correcting a roller of the first layer. A code translator is fitted to a spindle of the printing roller. A feeding roller is arranged in front of the first roller, and is driven by a feeding motor. The feeding motor is controlled in respect of speed by the calculation unit to print on the first layer having preset print in a desired position after the calculation unit has received the data from the electric eyes and a turning speed datum of the printing roller from the code translator.