Apron feeder is generally divided into heavy, medium and light three, is commonly used in the factory feeding equipment. Light apron feeder system continuous feeding machinery, widely used from storage bin to crushing, transportation and other machinery for uniform continuous feeding: medium apron feeder system intermittent feeding machinery, widely used from storage bin to crushing, transportation and other machinery for uniform intermittent feeding: heavy apron feeder is the auxiliary equipment of transportation machinery. The apron feeder comprises two opposing support plates, a plate conveying component is arranged between the two support plates, a chain transmission mechanism is arranged at both ends of the plate conveying component, one end of the chain transmission mechanism is arranged with an active sprocket assembly, and the other end of the chain transmission mechanism is arranged with a driven sprocket assembly. The lower part of the plate conveying assembly is provided with a rotating shaft that rotates synchronically with the driven sprocket assembly, the rotating shaft is connected with two support plates through a first bearing, the outer surface of the rotating shaft is provided with a brush, the brush is in contact with the bottom of the plate conveying assembly, the bottom of the brush is provided with a guide plate, which can clean the surface adhesion of the connected plate unit. At the same time, it can increase the load-bearing capacity of apron feeder's connecting unit. However, the above device lacks a fine material separation device, because in the aggregate crushing, there are many raw wool mixed with many fine materials, if these fine materials enter the crushing production line through the feeder, it is bound to affect the crushing efficiency and screening effect of the whole line.

The purpose of our design is to provide an apron feeder that separates fine materials to address the issues raised in the above background technology. In order to realize the above purposes, the utility model provides the following technical schemes: we design an apron feeder for separating fine materials, including a frame, the frame is provided with a movable bearing seat on the left side before and after, the movable bearing seat is connected with a driven shaft, the frame is provided with a fixed bearing seat on the right side before and after, and the fixed bearing seat is connected with an active shaft. The driven shaft and the drive shaft are provided with two sprockets before and after, the sprocket is connected with a rail chain, the rail chain is provided with a mounting slot, the top of the rail chain is provided with a number of track plate, the installation slot is provided with a fixed component fixed connection with the track plate, the adjacent track plate between a certain gap, the leakage hopper is fixed in the frame, the leakage hopper is located between the upper and lower sides of the rail chain, the middle of the leakage hopper is raised, the bottom of the frame is provided with a roller assembly, the right end of the frame is provided with a motor base, the top of the motor base is provided with a three-phase asynchronous motor, the right side of the three-phase asynchronous motor is provided with a speed reducer, the three-phase asynchronous motor and the reducer are connected through a belt and a belt pulley, and the output shaft of the reducer is connected with the drive shaft through a coupling. As a further scheme, the fixing assembly comprises a hexagon head bolt, a spring washer and a hexagon nut. As a further scheme: the apron feeder bottom of the track plate is provided with a scraper, and the scraper corresponds to the shape of the raised part of the drain hopper.

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