Abstract: A machine moves shoe strobels to a camera or scanner where images of the strobels are captured. Using the images, a computing device instructs a printer how to mark guidelines on the strobels that signify one or more strobel sewing lines for different shoes models and shoe sizes. Cross-sectional lines may also be printed on the strobels to aid in error-checking guideline marking. Unmarked strobels are stacked in a loading compartment, sometimes in pairs—e.g., right and left shoe strobels. The unmarked strobels are transferred to a conveyor that brings the strobels to the camera or scanner and the printer. After guidelines and/or cross-sectional lines are added to the strobels, the marked strobels are stacked in a compartments housing other marked strobels.

Abstract: An environmental-protection shoe sole made of recycled shoes is provided, which uses recycled used shoes as a primary constituent of the raw material thereof, which used shoes, after being processed to remove metal accessories, are pulverized to small pieces of a predetermined size, and are then subjected to heating for deodorization and drying and thereafter added with a suitable amount of a base rubber, followed by uniformly mixing, to provide a shoe sole material, which is then molded and shaped. Thus, manufacturing time and material costs can be substantially reduced and environmental and economic effects by cyclic utilization of recycling used shoes can be realized.