Sand screening machine used for construction

Abstract

The invention discloses a sand screening machine used for construction. The sand screening machine used for construction comprises a machine frame. A feeding device is mounted at the upper end of the machine frame, and a uniformizing device is arranged below the feeding device. A vibrating screen is mounted in the machine frame. A supporting frame is mounted on one side of the machine frame. A conveying motor is mounted on one side of the supporting frame. Conveying shafts are mounted in the machine frame and the supporting frame correspondingly and wrapped with a conveying belt. The sand screening machine used for construction has the beneficial effects that a feeding motor operates, a worm is matched with transmission teeth on the outer side of a driven wheel so as to transmit power, a feeding screw is driven to rotate, then intermittent and quantitative feeding is achieved, and the situation that the sand screening effect is affected due to the fact that the feeding quantity is too large is prevented; a uniformizing motor drives a sliding column to rotate through a rotating rod, the sliding column is made to slide in a sliding groove rod, then the sliding groove rod drives a feeding plate to slide in a feeding partition plate through a uniformizing sliding rod, the relative positions of a uniformizing through hole and a feeding through hole are changed accordingly, sand can evenly distributed on the surface of the vibrating screen, and the sand screening efficiency can be improved easily.

Description

technical field [0001] The invention relates to the technical field of mechanical devices for construction, in particular to a sand screening machine for construction. Background technique [0002] As an important material for construction projects, sand has strict requirements on its quality. It is necessary to screen out the stones and other sundries inside the sand to ensure the purity of the sand. In order to ensure the quality of the sand, it is necessary to use a sand sieving machine to screen and filter the sand. [0003] The applicant found that there are at least the following technical problems in the prior art: the current sand screening machine cannot realize quantitative feeding at intervals when feeding sand, and cannot ensure uniform feeding at the same time. Insufficient sand will affect the sand screening effect and sand screening efficiency. Contents of the invention [0004] The purpose of the present invention is to provide a sand screening machine f...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a sand screening machine for construction in order to solve the above problems, so as to solve the problem that the sand screening machine in the prior art cannot realize quantitative feeding at intervals and cannot ensure uniform feeding when feeding sand. On average, it is easy to cause insufficient sand screening due to excessive feeding, which will affect technical problems such as sand screening effect and sand screening efficiency

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