Stock bin discharging structure

Abstract

The utility model provides a discharging structure of a stock bin, and belongs to the technical field of feed additive production equipment. Comprising a discharging pipe located at an outlet of a stock bin, a feeding port communicated with the outlet of the stock bin is formed in the side wall of the discharging pipe, a discharging port is formed in the lower end of the discharging pipe, a driving rod is rotationally connected into the discharging pipe, a discharging screw is slidably connected to the outside of the driving rod through a spline, and a plug capable of blocking the discharging port is arranged at the lower end of the discharging screw. An electromagnetic valve capable of controlling the discharging screw rod to move longitudinally is arranged between the discharging screw rod and the discharging pipe, and the discharging screw rod can block the discharging port when moving longitudinally upwards. The discharging device has the advantages of simple structure, reliable discharging and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of feed additive production equipment and relates to a silo discharging structure. Background Art

[0002] When feed additives are filled into powder cans, the online open cans are fed one by one through a silo, and the start and stop are frequent. The existing discharging port opening and closing method is a swinging plate door type, that is, a swinging door plate is arranged at the discharging port of the silo. The door plate is driven through structures such as connecting rods and cylinders. Opening and closing the door plate realizes the opening and closing of the discharging port of the silo. Since it is powder, when it is reopened after closing, it is very easy to form material stagnation and poor discharging. It is also easy to not close tightly when closing. In addition, different from liquid materials, the existing opening and closing method cannot make the discharging speed of powder uniform. For the cans moving rhythmically, the actual feeding amounts of each can have a large deviation. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a silo discharging structure for the above problems existing in the prior art. The technical problem to be solved by the utility model is how to improve the reliability of discharging.

[0004] The purpose of the utility model can be achieved by the following technical solutions: A silo discharging structure, characterized in that it includes a discharging pipe located at the silo outlet. An inlet communicating with the silo outlet is provided on the side wall of the discharging pipe. The lower end of the discharging pipe has a discharging port. A driving rod is rotatably connected inside the discharging pipe. A discharging screw is slidably connected to the outside of the driving rod through a spline. The lower end of the discharging screw has a plug that can block the discharging port. An electromagnetic valve capable of controlling the longitudinal movement of the discharging screw is arranged between the discharging screw and the discharging pipe. The discharging screw can move longitudinally upward to block the discharging port.

[0005] Further, the plug is in a conical shape with a large diameter end downward, and the inner wall of the discharging port is adapted to the plug.

[0006] Further, a pulley extending outside the discharging pipe is provided at the upper end of the driving rod.

[0007] The rotation of the driving rod is controlled by a reduction motor. The driving rod and the discharging screw are driven through splines to transmit the rotation torque to the discharging screw. Then, when the plug opens the discharging port, discharging is realized. When it is necessary to close the discharging port, in addition to stopping the reduction motor, the electromagnetic valve also needs to be controlled to make the discharging screw move upward as a whole, so that the plug blocks the discharging port. In this process, after the plug is slightly lifted by the discharging screw, it blocks the discharging port, which can make the material move upward in the discharging pipe, avoid the plug being interfered by the material, realize reliable opening and closing, and the discharging speed is also relatively stable and continuous. Description of the Drawings

[0008] Figure 1 It is a schematic diagram of the silo discharge structure.

[0009] In the figure, 1. discharge pipe; 2. driving rod; 3. discharge screw; 4. plug; 5. solenoid valve. DETAILED DESCRIPTION

[0010] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0011] like Figure 1 The silo discharging structure shown includes a discharging pipe 1 located at the silo outlet, a side wall of the discharging pipe 1 having an inlet connected to the silo outlet, a lower end of the discharging pipe 1 having a discharging port, a driving rod 2 rotatably connected inside the discharging pipe 1, a discharging screw 3 slidably connected to the outside of the driving rod 2 via a spline, a lower end of the discharging screw 3 having a plug 4 capable of sealing the discharging port, an electromagnetic valve 5 capable of controlling the longitudinal movement of the discharging screw 3 is arranged between the discharging screw 3 and the discharging pipe 1, and the longitudinal upward movement of the discharging screw 3 can seal the discharging port.

[0012] The plug 4 is tapered with the large diameter end downward, the inner wall of the discharge port is adapted to the plug 4 , and the upper end of the driving rod 2 is provided with a pulley extending out of the discharge pipe 1 .

[0013] The rotation of the driving rod 2 is controlled by the reduction motor, and the driving rod 2 and the discharging screw 3 are driven by a spline, so that the rotational torque is transmitted to the discharging screw 3, and then the material is discharged when the plug 4 opens the discharging port. When the discharging port needs to be closed, in addition to stopping the reduction motor, it is also necessary to control the solenoid valve 5 to move the discharging screw 3 upward as a whole so that the plug 4 blocks the discharging port. In this process, the plug 4 blocks the discharging port after the discharging screw 3 is slightly lifted, so that the material can move upward in the discharging pipe 1, and the plug 4 can be prevented from being disturbed by the material, so that the opening and closing can be reliable, and the discharging speed is relatively stable and continuous.

[0014] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A silo discharging structure, characterized in that, It includes a discharge pipe (1) located at the outlet of the storage bin. The side wall of the discharge pipe (1) has a feed inlet communicating with the outlet of the storage bin. The lower end of the discharge pipe (1) has a discharge outlet. A driving rod (2) is rotatably connected inside the discharge pipe (1). A discharge screw (3) is slidably connected to the outside of the driving rod (2) through a spline. The lower end of the discharge screw (3) has a plug (4) capable of blocking the discharge outlet. An electromagnetic valve (5) capable of controlling the longitudinal movement of the discharge screw (3) is provided between the discharge screw (3) and the discharge pipe (1). The longitudinal upward movement of the discharge screw (3) can block the discharge outlet.

2. The material bin discharging structure according to claim 1, characterized in that, The plug (4) is in the shape of a cone with a large diameter at the lower end, and the inner wall of the discharge outlet is adapted to the plug (4).

3. The discharging structure of a silo according to claim 1, wherein, The upper end of the driving rod (2) has a pulley extending outside the discharge pipe (1).

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