An automatic stir-frying device of food frying machines, comprising:
- a machine body, including at least a support body;
- a food frying pot, including at least a hollow outer case body mounted on the support body, in which the outer case body is pivotally installed with a servo motor which is used to memorize a rotation angle in order to control the operating position of the outer case body, and the outer case body is recessively installed with a notch from the outside toward the inside, and the interior of the notch is pivotally installed with an inner frying pot whose bottom is pivotally installed with an inner pot motor, and in which a scraper is fixedly installed on the outer case body and extends into the inside of the inner frying pot,
- a food material stir-frying device, including a fixing frame fixedly installed on the support body, in which a track rod is installed on the fixing frame, a receive-send cylinder is mounted on the track rod, a movable frame is fixedly installed on the receive-send cylinder, a rotation motor is mounted on the movable frame, and the rotation motor is connected with a stir-frying device which is assembled with at least one pick, and the receive-send cylinder can drive the movable frame to move back and forth on the track rod such that the stir-frying device can enter or exit the inner frying pot, and when the stir-frying device enters into the inside of the inner frying pot, the pick is located beside the scraper;
- and
- a master controller, respectively connected to the servo motor, the inner pot motor, the receive-send cylinder as well as the rotation motor,
- wherein a position difference sensing device connected to the master controller is installed at the exterior of the outer case body and can be used to detect the positions of the initial and final rotation points of the outer case body thereby limiting the movement of the outer case body within a safe angle range, and
- wherein the position difference sensing device includes a start position determination block, an end position determination block, a start sensing terminal and an end sensing terminal, in which the start position determination block and the end position determination block are individually installed on the surfaces of the exterior of the outer case body opposite to the support body, while the start sensing terminal and the end sensing terminal are individually installed on the surfaces of the exterior of the support body opposite to the outer case body, such that, when the outer case body rotates, if the start sensing terminal detects the start position determination block or alternatively the end sensing terminal detects the end position determination block, then the master controller controls the servo motor to stop the rotation operation.