2results about How to "Easy clearance" patented technology

This utility model relates to the field of yarn tube paper production technology, and more particularly to a calendering device for yarn tube paper production. The technical solution includes a base plate, with a fixed frame fixedly connected between the top edges of the base plate and the two sides. A guide roller is rotatably connected between the inner walls of the two sides of the fixed frame near the top edge. Connecting plates are slidably fitted onto the outer surfaces of the guide rollers near both ends. This utility model uses a first rotating gear to drive a bidirectional threaded rod to rotate, causing the connecting plates to move relative to each other under the action of the bidirectional threaded rod. The connecting plates drive limiting blocks to slide on the guide rollers, thereby effectively controlling the gap between the limiting blocks, facilitating the guidance of the yarn tube paper on the guide rollers, effectively reducing uneven guidance of the yarn tube paper, making the yarn tube paper more compact during calendering, and thus improving the calendering effect of the device.

The utility model discloses an aluminum angle valve suitable for a low-temperature environment, which relates to the technical field of aluminum angle valves and comprises a valve body, the top of the valve body is communicated with a valve cylinder, a valve seat is fixedly mounted in the valve body, a conical opening and closing hole is formed in the valve seat, a valve rod is in threaded connection with the interior of the valve cylinder, and the valve rod is in threaded connection with the valve cylinder. The lower end of the valve rod is fixedly connected with a conical valve element matched with the opening and closing hole, a flow guide channel is formed in the valve rod, a heating cavity communicated with the flow guide channel is formed in the valve element, a handle is fixedly installed at the upper end of the valve rod through a bolt, and a heating rod is fixedly installed in the middle of the bottom of the handle. The heating rod and the thermal compensation medium are arranged in the valve element, so that automatic constant-temperature control of the valve element can be achieved, the problem of sealing failure caused by low-temperature shrinkage is effectively solved, it is guaranteed that the valve element and the valve seat keep the best fit clearance all the time, and the sealing performance of equipment in the low-temperature environment is improved.