2results about How to "Easy to move forward" patented technology

The utility model relates to a color printing calibration technical field, especially a kind of printed matter automatic calibration device, including support frame, its top one side is equipped with first conveyor belt, and its top other side is equipped with two parallelly placed second conveyor belt.The utility model has the advantages that by being provided with first conveyor belt and three motorized rollers, while two mounting plates are provided with electric cylinder, mounting bracket, horizontal plate and laser sensor, and then paperboard enters from first conveyor belt, two guide plates are convenient for limiting paperboard, subsequently multiple guide wheels limit paperboard, when paperboard blocks the laser sensor on one side, the electric cylinder on the corresponding side extends, paperboard is pushed to slide horizontally by mounting bracket and multiple guide wheels, multiple guide wheels are located at the two sides of paperboard, limit the advance of paperboard, to realize the calibration of paperboard position, overall structure is simple, convenient to use, to effectively solve the problems existing in the prior art.

This invention provides a water-blocking device for a tunneling machine and a tunneling machine in the field of tunneling equipment technology. The water-blocking device for the tunneling machine includes a fixing member for fixing to the bottom of the shield body. A sealing member for sealing the gap between the bottom of the shield body and the tunnel wall is installed on the fixing member. The sealing member has a contact surface for contacting the tunnel wall. The water-blocking device also includes a control structure connected to the sealing member to control the contact surface's contact or detachment from the tunnel wall. The contact surface of the sealing member can seal the gap between the bottom of the shield body and the tunnel wall, preventing water from seeping into the tunnel, flowing water behind the tunnel, or water used for construction from flowing to the front of the shield body and mixing with the excavated rock. This prevents the excavated rock transported to the conveyor belt from having excessive moisture content, causing transportation difficulties and ensuring the normal excavation function of the conveyor belt. Excavation is not required by manual assistance, saving manpower and time. The contact surface of the sealing member can also detach from the tunnel wall, facilitating the tunneling machine's forward movement and avoiding excessive friction that could affect its service life.