WO2021012876A1

WO2021012876A1 - Twin-screw anti-arching feeding device

Info

Publication number: WO2021012876A1
Application number: PCT/CN2020/098531
Authority: WO
Inventors: 刘光知; 雷念臣
Original assignee: 南京科亚化工成套装备有限公司
Priority date: 2019-07-24
Filing date: 2020-06-28
Publication date: 2021-01-28
Also published as: CN110395490A; CN110395490B

Abstract

A twin-screw anti-arching feeding device, comprising a transmission device and a feeding body (1). The transmission device comprises a speed reduction transmission motor (2), and a driving gear and a propeller shaft motor are provided inside a case (3), the driving gear drives one end of two feeding twin screw shafts (4) each, a first feeding screw (7) and a second feeding screw (8) are both provided inside a feeding barrel (9), an electric base (14) is provided inside an accommodating box (13), a stirring propeller shaft (15) is provided inside the electric base (14), the stirring propeller shaft (15) passes through a first through hole (11) and a second through hole, the feeding body (1) is arranged at the top of the feeding barrel (9), and a sealing cap (16) is arranged at the top of the stirring propeller shaft (15), a connection block (17) is provided at the bottom of the sealing cap (16), and the connection block (17) is connected to several stirring blades (18), one end of each of the stirring blades (18) is connected to a side wall of the connection block (17), a cushion block (19) is provided at the bottom of the other end of each stirring blade, and lower surfaces of the cushion blocks (19) are provided above the top of the feeding barrel (9). The twin-screw anti-arching feeding device feeds materials uniformly, and can increase the service life of the equipment and improve the stability of the production product.

Description

Double-screw anti-bridging feeding device

Technical field

The invention belongs to the technical field of feeding equipment, and specifically relates to a twin-screw anti-bridging feeding device.

Background technique

The main function of the feeding device is to continuously and evenly feed the processed or unprocessed materials from a certain equipment (hopper, storage bin, etc.) to the receiving equipment or transportation machinery. In the process of measuring and feeding powder or raw materials with poor fluidity, the feeding screw underneath is idling due to the agglomeration or adhesion of the material, and the material is bridged in the hopper, which leads to the phenomenon that the material is bridged in the hopper. The value of is unstable, and the discontinuous metering of the existing feeding device will cause problems such as poor product stability and abnormal equipment damage.

Therefore, there is an urgent need to provide a twin-screw anti-bridging feeding device with uniform feeding, which can increase the service life of the equipment and produce products with good stability.

Summary of the invention

The purpose of the present invention is to provide a twin-screw anti-bridging feeding device in view of the shortcomings of the existing twin-screw feeding device.

The present invention provides the following technical solutions:

A twin-screw anti-bridging feeding device includes a transmission device and a feeding body. The transmission device includes a reduction transmission motor connected to the first side wall of a chassis, and a driving gear and a A paddle shaft motor, the drive gear drives two twin-feeding screw shafts, the two twin-feeding screw shafts penetrate through the second side wall of the chassis, and one ends of the two twin-feeding screw shafts are respectively Connect the first feeding screw and the second feeding screw, the first feeding screw and the second feeding screw are both arranged inside the feeding barrel, between the feeding barrel and the chassis The outside of the feeding twin-screw shaft is sheathed with a fixing mechanism, one end side wall of the fixing mechanism is connected to one end side wall of the feeding barrel, and the top and bottom of the feeding barrel are respectively provided in the vertical direction The first through hole and the second through hole, the bottom of the second side wall of the chassis is connected to one end of the accommodating box, an electric seat is arranged inside the accommodating box, and a stirring paddle shaft is arranged inside the electric seat. The stirring paddle shaft is penetrated through the first through hole and the second through hole, the stirring paddle shaft is provided between the first feeding screw and the second feeding screw, and the feeding The body is set on the top of the feeding barrel, the top of the stirring paddle shaft is set inside the feeding body, the top of the stirring paddle shaft is provided with a head cap, and the bottom of the head cap is provided with A connecting block, the connecting block is connected with a number of stirring blades, one end of the stirring blade is connected to the side wall of the connecting block, the bottom of the other end is provided with a pad, and the lower surface of the pad is provided on the Above the top of the feeding barrel.

Preferably, the positions of the first through hole and the second through hole are arranged oppositely, the cross section of the first through hole and the second through hole are both circular, and the inner diameter of the second through hole The outer diameter of the stirring blade shaft is the same, and the inner diameter of the first through hole is larger than the inner diameter of the second through hole.

Preferably, the bottom of the fixing mechanism is arranged inside the containing box, and the bottom surface of the bottom of the containing box and the bottom surface of the chassis are both on the same plane.

Preferably, the stirring paddle shaft is electrically connected to the paddle shaft motor.

Preferably, the number of the stirring blades is three, and the distances between adjacent blades are equal.

Preferably, one end of the feeding barrel is provided with a discharge port, and the discharge port is connected to a blanking box.

The beneficial effects of the present invention are: start the power deceleration transmission motor and the propeller shaft motor drive, the driving gear drives the two feeding twin screw shafts, the first feeding screw rotates clockwise, the second feeding screw rotates counterclockwise, and the propeller shaft motor Drive the stirring paddle shaft to rotate at a certain low speed, drive the stirring paddle to rotate in the horizontal direction, and put the material into the feeding body. The lower surface of the stirring paddle and the top of the first feeding screw and the second feeding screw are spaced. Small, effectively avoiding the phenomenon of agglomeration and bridging caused by the mutual bonding of materials. The low-speed rotating stirring blade can continuously break the bridges and break the materials in the feeding body. Under the action, the material enters the feeding barrel through the first through hole, gradually moves to the discharge port under the action of the first feeding screw and the second feeding screw, and finally falls into the blanking box. The material is discharged evenly. Continuous and stable metering and feeding can increase the service life of the equipment and have good product stability.

Description of the drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, together with the embodiments of the present invention, are used to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

Figure 1 is a schematic diagram of the structure of the present invention;

Figure 2 is a top view of the stirring blade in the present invention;

Fig. 3 is a schematic diagram of an enlarged structure of a stirring blade in the present invention.

The marks in the figure are: 1. Feeding body; 2. Reduced transmission motor; 3. Case; 4. Feeding twin screw shaft; 5. First side wall; 6. Second side wall; 7. First feeding screw 8. The second feeding screw; 9. The feeding barrel; 10. The fixing mechanism; 11. The first through hole; 12. The blanking box; 13. The containing box; 14. The electric seat; 15. The stirring paddle shaft; , Head cap; 17, connection block; 18, stirring blade; 19, cushion block; 20, discharge port.

Detailed ways

Example

As shown in Figures 1 to 3, a twin-screw anti-bridging feeding device includes a transmission device and a feeding body 1. The transmission device includes a reduction transmission motor 2, which is connected to the first side wall 5 of the chassis 3 , The chassis 3 is provided with a driving gear and a propeller shaft motor. The driving gear drives two feeding twin-screw shafts 4, and two feeding twin-screw shafts 4 penetrate through the second side wall 6 of the chassis 3. One end of the screw shaft 4 is respectively connected to the first feeding screw 7 and the second feeding screw 8. The first feeding screw 7 and the second feeding screw 8 are both arranged inside the feeding barrel 9 and located in the feeding barrel 9 A fixing mechanism 10 is sleeved on the outside of the feeding twin-screw shaft 4 between the casing 3 and the housing 3. One end side wall of the fixing mechanism 10 is connected to one end side wall of the feeding barrel 9, and the top and bottom of the feeding barrel 9 are in the vertical direction. A first through hole 11 and a second through hole are provided. The bottom of the second side wall 6 of the case 3 is connected to one end of the containing box 13. The containing box 13 is provided with an electric seat 14 and a stirring paddle is arranged inside the electric seat 14 The shaft 15, the stirring paddle shaft 15 penetrates the first through hole 11 and the second through hole, the stirring paddle shaft 15 is arranged between the first feeding screw 7 and the second feeding screw 8, and the feeding body 1 is arranged at the feeding The top of the barrel 9 and the top of the stirring paddle shaft 15 are set inside the feeding body 1, the top of the stirring paddle shaft 15 is provided with a head cap 16, and the bottom of the head cap 16 is provided with a connecting block 17, which is connected to There are several stirring blades 18, one end of the stirring blade 18 is connected to the side wall of the connecting block 17, and the bottom of the other end is provided with a pad 19, and the lower surface of the pad 19 is set above the top of the feeding barrel 9.

The positions of the first through hole 11 and the second through hole are arranged oppositely, the cross section of the first through hole 11 and the second through hole are both circular, and the inner diameter of the second through hole is the same as the outer diameter of the stirring blade shaft 15. The inner diameter of one through hole 11 is larger than the inner diameter of the second through hole. The bottom of the fixing mechanism 10 is arranged inside the containing box 13, and the bottom surface of the bottom of the containing box 13 and the bottom surface of the chassis 3 are both on the same plane. The stirring paddle shaft 15 is electrically connected to the paddle shaft motor. The number of stirring blades 18 is three, and the distance between adjacent blades is equal. One end of the feeding barrel 9 is provided with a discharge port 20, and the discharge port 20 is connected to the blanking box 12.

Start the power supply, the reduction drive motor 2 and the propeller shaft motor drive, the driving gear drives the two feeding twin screw shafts 4, the first feeding screw 7 rotates clockwise, the second feeding screw 8 rotates counterclockwise, and the paddle shaft motor drives the stirring blade The shaft 15 rotates at a certain low speed to drive the stirring blade 18 to rotate in the horizontal direction, and put the material into the feeding body 1. The stirring blade 18 rotating at a low speed can continuously break the bridge, and the feeding body 1 The material is agglomerated and broken. Under the action of stirring and gravity, the material enters the feeding barrel 9 through the first through hole 11, and gradually moves to the outlet under the action of the first feeding screw 7 and the second feeding screw 8. The material opening 20 finally falls into the blanking box 12 for collection and sorting.

The foregoing descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still compare the foregoing embodiments. The recorded technical solutions are modified, or some of the technical features are equivalently replaced. Any modification, equivalent replacement, improvement, etc., made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

A twin-screw anti-bridging feeding device, which is characterized in that it comprises a transmission device and a feeding body, the transmission device includes a reduction transmission motor, the reduction transmission motor is connected to the first side wall of the chassis, and the chassis is provided inside There is a drive gear and a paddle shaft motor. The drive gear drives two feeding twin screw shafts. The two feeding twin screw shafts penetrate through the second side wall of the chassis. The two feeding twin screw shafts One end of the shaft is respectively connected to the first feeding screw and the second feeding screw. The first feeding screw and the second feeding screw are both arranged inside the feeding barrel, and are arranged between the feeding barrel and the feeding barrel. The outside of the feeding twin-screw shaft between the cabinets is covered with a fixing mechanism, one end of the fixing mechanism is connected to one end of the feeding barrel, and the top and bottom of the feeding barrel are vertical A first through hole and a second through hole are respectively provided in the direction. The bottom of the second side wall of the chassis is connected to one end of the containing box. The containing box is provided with an electric seat, and the electric seat is provided with a stirring A paddle shaft, the stirring paddle shaft penetrates the first through hole and the second through hole, and the stirring paddle shaft is provided between the first feeding screw and the second feeding screw, The feeding body is arranged on the top of the feeding barrel, the top of the stirring paddle shaft is arranged inside the feeding body, the top of the stirring paddle shaft is provided with a head cap, the head cover A connecting block is provided at the bottom of the connecting block, the connecting block is connected with a number of stirring blades, one end of the stirring blade is connected to the side wall of the connecting block, and the bottom of the other end is provided with a spacer block, the lower surface of the spacer block Located above the top of the feeding barrel.
The twin-screw anti-bridging feeding device according to claim 1, wherein the first through hole and the second through hole are positioned opposite to each other, and the first through hole and the second The cross sections of the two through holes are both circular, the inner diameter of the second through hole is the same as the outer diameter of the stirring blade shaft, and the inner diameter of the first through hole is larger than the inner diameter of the second through hole.
The twin-screw anti-bridging feeding device according to claim 1, wherein the bottom of the fixing mechanism is arranged inside the containing box, and the bottom surface of the bottom of the containing box is connected to the chassis The bottom surfaces of the bottom are all on the same plane.
The twin-screw anti-bridging feeding device according to claim 1, wherein the stirring paddle shaft is electrically connected to the paddle shaft motor.
The twin-screw anti-bridging feeding device according to claim 1, wherein the number of said stirring blades is three, and the distance between adjacent said blades is equal.
The twin-screw anti-bridging feeding device according to claim 1, wherein one end of the feeding barrel is provided with a discharge port, and the discharge port is connected to a blanking box.