CN202030219U - Screw feeder - Google Patents

Abstract

The utility model relates to a screw feeder, which comprises a screw conveyor and a feed hopper, wherein the feed hopper is arranged on a feed inlet of the screw conveyor and provided with a material feed inlet. The screw feed is characterized in that a plurality of air jet holes are uniformly distributed on the inner wall of the lower portion of the feed hopper and are communicated with an air storage tank through a pipeline, and an electromagnetic valve is mounted on the pipeline and connected with a programmable controller. The screw feeder has the advantages that the programmable controller controls on and off of the electromagnetic valve periodically, air can be jetted to the inside of the feed hopper from the air storage tank through the air jet holes so as to move powder accumulated at a lower end opening of the feed hopper, and thereby affection to material delivery due to the fact that the materials are overhead all the time is avoided, manually forced powder feeding is omitted, labor intensity of workers is reduced and health of the workers is guaranteed.

Description

A kind of screw feeder

Technical field

The utility model relates to a kind of screw feeder, particularly a kind of screw feeder that is not prone to arch formation.

Background technology

Traditional screw feeder comprises auger loader, is located at the pyramid hopper on the auger loader inlet point, establishes the material inlet point on the hopper, after material enters auger loader by the material inlet point, is discharged from discharging opening by the blade promotion of auger loader.Granular material is prone to arch formation after entering feeder, causes material occurring in the hopper middle and lower part and makes somebody a mere figurehead, and can't enter auger loader and transport out, and influences the serialization ordinary production.At present general solution is the inspection by the workman, just utilizes instrument to knock hopper in case take place to build bridge, and makes it produce vibration, the elimination arch formation takes place, or the direct labor directly stirs the material of making somebody a mere figurehead, and labor strength is big, dust is more, and this occupational health health to the employee has caused injury.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of screw feeder that is not prone to arch formation.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of screw feeder, comprise auger loader, be located at the hopper on the auger loader inlet point, establish the material inlet point on the hopper, its innovative point is: described hopper lower inner wall is evenly equipped with some fumaroles, and described fumarole is communicated with storage tank by pipeline, on the described pipeline electromagnetic valve is installed, this electromagnetic valve is connected with Programmable Logic Controller.

Advantage of the present utility model is: opened by Programmable Logic Controller fixed-time control electromagnetic valve, make storage tank jet to carrying out in the hopper by fumarole, blow the granular material that is deposited in the hopper lower port, avoid occurring the conveying that arch formation influences material always, need not manually to force powder feeding, reduce working strength of workers, guaranteed workers'health.

Description of drawings

Fig. 1 is the utility model screw feeder structural representation.

The specific embodiment

As shown in drawings, comprise auger loader 1, hopper 2, material inlet point 3, fumarole 4, pipeline 5, storage tank 6, establish hopper 2 on the inlet point of auger loader 1, establish material inlet point 3 on the hopper 2, hopper 2 lower inner wall are evenly equipped with some fumaroles 4, each fumarole 4 is communicated with storage tank 6 by a pipeline 5, and electromagnetic valve 7 is installed on the pipeline, and this electromagnetic valve 7 is connected with Programmable Logic Controller 8.Built-in timer fixed-time control electromagnetic valve 7 by Programmable Logic Controller 8 is opened, and makes storage tank 6 jet by carrying out in 4 pairs of hoppers 2 of fumarole, blows the granular material that is deposited in hopper 2 lower port.

Claims (1)

1. screw feeder, comprise auger loader, be located at the hopper on the auger loader inlet point, establish the material inlet point on the hopper, it is characterized in that: described hopper lower inner wall is evenly equipped with some fumaroles, described fumarole is communicated with storage tank by pipeline, on the described pipeline electromagnetic valve is installed, and this electromagnetic valve is connected with Programmable Logic Controller.

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