Patent ID: 9723948
Date: 2017-08-08
CPC Classifications: A47J

Claim:
1. A wok lid control apparatus applicable in a fully automated cooking machine, comprising a machine frame, a base, fixed onto the machine frame, a drive mechanism, mounted to the base, comprising a linear motor, a connecting rod and a wok lid holder, the linear motor comprising a stator fixed to the base and a rotor moving up and down relative to the stator, the connecting rod connecting the rotor and the wok lid holder, and a follow-up mechanism, comprising a wok lid shaft, a bearing, and an elastic component, the wok lid holder being provided with a through hole for the wok lid shaft to run through, a lower end of the wok lid shaft being fixedly connected to a wok lid, while an upper end of the wok lid shaft protruding through the through hole; the wok lid holder being provided with a groove for receiving the bearing, the wok lid shaft being slidingly engaged with the bearing, the wok lid shaft being provided at the upper end thereof with a stopping ring engaging with the bearing to prevent the wok lid shaft from sliding out from the wok lid holder when sliding relative to the bearing; an upper end of the elastic component being connected to the bearing, and a lower end of the elastic component being connected to the wok lid; wherein the linear motor is connected to a master control device of the cooking machine to receive a command issued by the master control device based on a predetermined recipe and react accordingly to the command, when receiving a close-lid command, the linear motor drives the rotor to move downwards so as to further drive the wok lid holder and the wok lid shaft to move downwards; after the wok lid has contacted an opening of a wok, the linear motor drives the rotor to continue moving downwards, so that the wok lid holder and the bearing both slide downwards relative to the wok lid shaft to press the elastic component until the opening of wok is tightly sealed by the wok lid; when receiving an open-lid command, the linear motor drives the rotor to move upwards so as to further drive the wok lid holder and the wok lid shaft to move upwards, so that the wok lid is lifted up away from the opening of the wok.