Abstract

A control device for sewing machines includes an input device adapted to permit the input of different categories of information including program relative commands, unit sewing pattern relative commands, and numeric data and a discriminator capable of discrimination between a command for programming and one for program execution. The former commands are stored in a memory as program data and the latter commands are read out by means of a program read-out. In a comparitor, the read-out program data are compared with the actual data detected by a detector such as the number of stitches and the lock position of a needle arm. On the basis of this data, a fabric feed mechanism and a thread cut mechanism are ON/OFF controlled. Thus, a variety of sewing patterns can be programmed as required for subsequent readily effected and efficient execution so that operation can be optimal.