Conic sand making machine comprising concave-convex arc-shaped sand making cavities and sand making method

Abstract

The invention relates to a conic sand making machine comprising concave-convex arc-shaped sand making cavities and a sand making method, so as to fundamentally solve the problems that the spindle of the conventional conic sand making machine is concentratedly stressed and easy to break, and sand made through sand bridging of the sand making cavities cannot fall off. Each sand making cavity of the conic sand making machine provided by the invention comprises a rolled mortar surface of a rolled mortar wall and a crushing surface of a crushing wall in the conic sand making machine, so that when small stone enters the sand making cavity under the action of the spindle of the conic sand making machine, the spindle drives the crushing surface of the crushing wall sleeved on a movable taper through the movable taper to move along an arc-shaped curve, so as to form curve rolling with the rolled mortar surface of the rolled mortar wall; and as the rolled mortar surface of the rolled mortar wall is in concave-convex arc-shaped linear surface fit with the crushing surface of the crushing wall, the arc-shaped curved surfaces rolled by the rolled mortar surface are different in angle with the rotation of the spindle, and the stressed positions of the arc-shaped curved surface of the rolled mortar surface of the rolled mortar wall are different. Therefore, the purpose of arc-shaped curve sand making without sand bridging is realized.

Description

technical field [0001] The invention relates to a kind of conical sand making machine and sand making machine composed of concave and convex arc sand making chambers which can fundamentally change the concentrated force and easy breakage of the main shaft of the conical sand making machine. The method belongs to the field of sand cavity manufacturing of a cone sand making mechanism. Background technique [0002] CN201552020U, name "a special sand making chamber for a conical sand making machine", the upper casing is located at the upper end of the lower casing, the adjusting screw sleeve is located on the upper casing and is spirally connected with the upper casing, and the inner wall of the adjusting screw sleeve is The middle is raised, and the upper and lower sides are respectively ring-shaped horn-shaped slopes. The anti-wear fixed sleeve is connected with the lower ring-shaped horn-shaped slope of the adjusting screw sleeve through the fixed sleeve bushing. In the shaf...

AI Technical Summary

Problems solved by technology

Since the mortar surface of the mortar wall in the sand-making chamber is in linear contact with the crushing surface of the crushing wall, in actual use, the huge force generated by the sand-making chamber in order to crush stones during sand-making is useless. Dispersion, directly acting on the main shaft, causing frequent breakage of the main shaft; secondly, because the sand making chamber is crushed by surface extrusion, when the water content of the stone is slightly larger, it will cause sand grinding and bridging, resulting in no sand in the sand making chamber suffocation, the motor current increases sharply, causing the motor to be burned due to excessive current, and the wall of the mortar and the broken wall are damaged.

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