Material weighing spiral discharging device with airflow guiding dust removal cover

Abstract

The utility model relates to a material weighing spiral blanking device with an airflow guiding dust hood. The material weighing spiral blanking device comprises two spiral conveying assemblies and the airflow guiding dust hood, the spiral conveying assembly comprises a shell, a hollow rotating shaft is installed in the shell, a conveying spiral is arranged on the outer wall of the hollow rotating shaft, one end of the hollow rotating shaft is connected with a driving motor, a connecting rod penetrates through the hollow rotating shaft, one end of the connecting rod is connected with a telescopic air cylinder, the other end of the connecting rod is connected with a sealing plate, and a feeding port is formed in the top of the shell. The airflow guide dust removal cover comprises a cover body, arc-shaped grooves are formed in the two opposite side walls of the cover body, a horizontal plate is fixed to the top in the cover body through a plurality of bolt assemblies, guide plates are arranged on the four edges of the upper surface of the horizontal plate in a bent mode, circulation gaps are formed between the tops of the guide plates and a top plate of the cover body, and an air induction opening is formed in the top plate of the cover body. According to the utility model, the discharge port can be closed, adverse effects of blanking on weighing during weighing are avoided, the structure is simple, and the cost is low; and the dust removal cover is used for removing the overflowing dust.

Description

Technical Field

[0001] This utility model relates to the technical field of batching and conveying, and in particular to a material weighing screw feeder with an airflow-guided dust removal hood. Background Technology

[0002] In the production and processing of rubber products, various materials need to be mixed in specific proportions. Traditionally, a screw conveyor is used to transport different materials to a scale for unloading, where they are weighed to complete the mixing process. However, existing screw conveyors lack a sealing device at the discharge port. Even slight vibrations can cause material to fall out, leading to inaccurate weighing. Furthermore, dust overflows from the discharge port, impacting the environment. Utility Model Content

[0003] The present invention aims to address the shortcomings of the prior art by providing a material weighing screw feeding device with an airflow-guided dust removal hood.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A material weighing screw feeding device with an airflow-guided dust removal hood includes two staggered parallel screw conveying assemblies, and an airflow-guided dust removal hood is installed between the two screw conveying assemblies.

[0006] The screw conveyor assembly includes a housing, inside which a hollow rotating shaft is installed. A conveying screw is provided on the outer wall of the hollow rotating shaft. One end of the hollow rotating shaft extends out of one end of the housing and is connected to a drive motor. A connecting rod is installed inside the hollow rotating shaft. One end of the connecting rod extends out of the housing and is connected to a telescopic cylinder. The telescopic cylinder and the drive motor are both located at the end of the housing away from the airflow guide dust collector. The other end of the connecting rod is connected to a sealing plate, which is attached to the discharge port end face of the housing. A feed port is provided at the top of the housing.

[0007] The airflow-guided dust collector includes a hood body. Arc-shaped grooves are provided on the opposite side walls of the hood body, and the hood body is mounted on the outer wall of the housing through the arc-shaped grooves. The discharge port of the housing is located inside the hood body. A horizontal plate is fixed to the top of the hood body by several bolt assemblies. Guide plates are provided on the four sides of the upper surface of the horizontal plate. A flow gap is provided between the top of the guide plate and the top plate of the hood body. An air inlet is provided on the top plate of the hood body.

[0008] The inner wall of the sealing plate is equipped with a silicone sealing gasket.

[0009] The beneficial effects of this utility model are: when controlling the weighing, this utility model can control the amount of time to close the discharge port in advance, avoiding the adverse effects caused by the material falling during weighing. It has a simple structure and low cost. It also uses a dust removal hood to remove the overflowing dust. The dust is collected along a planned route, reducing the area of ​​adhesion and preventing material from falling. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 A schematic diagram of the screw conveyor assembly without the sealing plate;

[0012] Figure 3 This is a schematic diagram of the internal structure of the spiral conveyor assembly;

[0013] Figure 4 A schematic diagram of the structure of an airflow-guided dust collector hood;

[0014] Figure 5 A schematic diagram of the dust collector hood with the top plate omitted for airflow guidance;

[0015] Figure 6 A schematic diagram of the magnetic blocks inside the dust collector hood for airflow guidance;

[0016] In the diagram: 1-Screw conveyor assembly; 2-Airflow guide dust collector hood;

[0017] 11-Housing; 12-Hollow rotating shaft; 13-Conveying screw; 14-Drive motor; 15-Connecting rod; 16-Telescopic cylinder; 17-Sealing plate; 18-Feed inlet; 19-Silicone sealing gasket; 110-Annular sleeve; 111-Fixing rod;

[0018] 21-Cover body; 22-Arc groove; 23-Bolt assembly; 24-Horizontal plate; 25-Guide plate; 26-Air inlet; 27-Hinge; 28-Switch plate; 29-Inner bending plate; 210-Locking plate; 211-Magnetic block;

[0019] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0021] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] A material weighing screw feeder with an airflow-guided dust collection hood, such as Figure 1 As shown, it includes two staggered parallel spiral conveyor assemblies 1, and an airflow guide dust collector hood 2 is installed between the two spiral conveyor assemblies 1.

[0025] like Figure 2 , Figure 3 As shown, the screw conveyor assembly 1 includes a housing 11, a hollow rotating shaft 12 installed inside the housing 11, a conveying screw 13 provided on the outer wall of the hollow rotating shaft 12, one end of the hollow rotating shaft 12 passing through one end of the housing 11 and connected to a drive motor 14, a connecting rod 15 passing through the hollow rotating shaft 12, one end of the connecting rod 15 passing through the housing 11 and connected to a telescopic cylinder 16, the telescopic cylinder 16 and the drive motor 14 are both located at the end of the housing 11 away from the airflow guide dust collector hood 2, the other end of the connecting rod 15 is connected to a sealing plate 17, the sealing plate 17 is attached to the discharge port end face of the housing 11, and a feed port 18 is provided at the top of the housing 11.

[0026] The inner wall of the sealing plate 17 is provided with a silicone sealing gasket 19.

[0027] A ring sleeve 110 is rotatably installed on the outer end of the hollow rotating shaft 12. Several fixing rods 111 are provided on the circumference of the outer wall of the ring sleeve 110, and the ends of the fixing rods 111 are fixed to the side wall of the housing 11.

[0028] The spiral blades of the conveying spiral 13 are densely packed at the end near the drive motor 14 and sparsely packed at the end near the sealing plate 17.

[0029] like Figure 4 , Figure 5 , Figure 6 As shown, the airflow-guided dust collector hood 2 includes a hood body 21. Arc-shaped grooves 22 are provided on the opposite side walls of the hood body 21 and are mounted on the outer wall of the housing 11 through the arc-shaped grooves 22. The discharge port of the housing 11 is located inside the hood body 21. A horizontal plate 24 is fixed to the top of the hood body 21 by several bolt assemblies 23. A guide plate 25 is provided on the four sides of the upper surface of the horizontal plate 24. A flow gap is provided between the top of the guide plate 25 and the top plate of the hood body 21. An air inlet 26 is provided on the top plate of the hood body 21.

[0030] A switch plate 28 is hinged to one side of the top plate of the cover 21 via a hinge 27.

[0031] The top plate and side plates corresponding to the cover 21 and the switch plate 28 are provided with inner bending plates 29.

[0032] Locking plates 210 are fixed at the lower ends of the two side plates corresponding to the cover 21 and the switch plate 28. Magnet blocks 211 are installed on the locking plates 210. The magnet blocks 211 contact the inner bending plate 29 and attract the switch plate 28.

[0033] This utility model utilizes a telescopic cylinder 16 to control the movement of the connecting rod 15, thereby controlling the sealing plate 17 to seal the housing 11. The sealing plate 17, combined with a silicone sealing gasket 19, greatly ensures its airtightness. During weighing control, the weighing frequency can be increased, the lead time can be well controlled, the discharge port can be effectively closed, the number of times the mixing ratio is adjusted is reduced, the weighing efficiency is improved, and the adverse effects caused by the symmetrical weighing of dropped material during weighing are avoided. The structure is simple and the cost is low.

[0034] This utility model utilizes a dust collector hood to remove overflowing dust. An internal horizontal plate 24 and guide plate 25 are added to evenly distribute the dust removal airflow around the perimeter, so that the dust is collected along a planned route, reducing the area of ​​adhesion and preventing material from falling. A magnet block 211 is added to fix the switch plate 28 to prevent door vibration caused by suction and reduce material falling.

[0035] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A spiral feeder for material weighing with an air flow guiding dust hood, characterized in that, The device comprises two helical conveying assemblies (1) arranged in staggered parallel, and a gas flow guiding dust removal cover (2) is arranged between the two helical conveying assemblies (1). The helical conveying assembly (1) comprises a shell (11), a hollow rotating shaft (12) is arranged in the shell (11), a conveying helix (13) is arranged on the outer wall of the hollow rotating shaft (12), one end of the hollow rotating shaft (12) penetrates through one end of the shell (11) and is connected with a driving motor (14), a connecting rod (15) is arranged in the hollow rotating shaft (12), one end of the connecting rod (15) penetrates through the shell (11) and is connected with a telescopic air cylinder (16), the telescopic air cylinder (16) and the driving motor (14) are arranged at the end of the shell (11) away from the gas flow guiding dust removal cover (2), the other end of the connecting rod (15) is connected with a sealing plate (17), the sealing plate (17) is attached to the end face of the discharge port of the shell (11), and the top of the shell (11) is provided with an inlet (18). The gas flow guiding dust removal cover (2) comprises a cover body (21), arc-shaped grooves (22) are arranged on the opposite side walls of the cover body (21) and are arranged on the outer wall of the shell (11) through the arc-shaped grooves (22), the discharge port of the shell (11) is located in the cover body (21), a horizontal plate (24) is fixedly arranged on the inner top of the cover body (21) through a plurality of bolt assemblies (23), guide plates (25) are arranged on the upper surface of the horizontal plate (24) and are bent on four sides, a flow gap is arranged between the top of the guide plate (25) and the top plate of the cover body (21), and an air inlet (26) is arranged on the top plate of the cover body (21).

2. The spiral feeder with airflow guide dust cover for material weighing according to claim 1, characterized in that, The inner wall of the sealing plate (17) is provided with a silica gel sealing gasket (19).

3. The spiral feeder with airflow guide dust cover for material weighing according to claim 2, characterized in that, The outer wall end of the hollow rotating shaft (12) is rotatably provided with an annular sleeve (110), a plurality of fixed rods (111) are circumferentially arranged on the outer wall of the annular sleeve (110), and the end of each fixed rod (111) is fixed on the side wall of the shell (11).

4. The spiral feeder with airflow guide dust cover for material weighing according to claim 3, characterized in that, The helical blades of the conveying helix (13) are dense at the end close to the driving motor (14) and sparse at the end close to the sealing plate (17).

5. The spiral feeder with airflow guiding dust hood for material weighing according to claim 4, characterized in that, The top plate of the cover body (21) is hingedly connected with an opening and closing plate (28) through a hinge (27).

6. The spiral downer device with airflow guide dust cover for material weighing according to claim 5, characterized in that, The top plate, the two side plates and the opening and closing plate (28) corresponding to the cover body (21) are all provided with inner bent plates (29).

7. The spiral downer device with airflow guide dust cover for material weighing according to claim 6, characterized in that, The lower ends of the two side plates corresponding to the cover body (21) and the opening and closing plate (28) are both fixedly provided with locking plates (210), the locking plates (210) are provided with magnet blocks (211), the magnet blocks (211) contact the inner bent plates (29) and attract the opening and closing plate (28).

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