Continuous feeding device for thermal insulation pipe production

The utility model discloses an uninterrupted feeding device for thermal insulation pipe production, and relates to the technical field of thermal insulation pipe production, the device comprises a hollow cylinder, a truncated cone-shaped funnel, a circular grid, a rectangular platform and a rectangular funnel, the upper surface of the rectangular platform is penetrated by the hollow cylinder, the inner wall of the hollow cylinder is fixedly connected with the circular grid, and the rectangular funnel is fixedly connected with the circular grid. The lower portion of the hollow cylinder is fixedly connected with a circular-truncated-cone-shaped funnel, a rectangular funnel is arranged below the circular-truncated-cone-shaped funnel and connected with the inner wall of the rectangular platform, a screening structure is arranged between the circular-truncated-cone-shaped funnel and the rectangular funnel, and the outer wall of a circular grid is fixedly connected with a backflow structure. A rotating structure is