A suction device of a vacuum loading machine

Abstract

The utility model discloses a kind of suction device of vacuum feeding machine, comprising: the main pipe of drawing material, its top end is fixedly installed with installation pipe head, the top end of installation pipe head is fixedly installed with feeding hose, and the feeding hose is connected with the feed inlet of vacuum feeding machine;Driving shaft is set to the bottom of the inner chamber of main pipe of drawing material, and the bottom end of the driving shaft is fixedly sleeved with installation sleeve, and the outer wall of the installation sleeve is equidistantly welded with multiple material lifting helical fan;Micro servo motor.The utility model expands the suction area of the bottom end of main pipe of drawing material by the design of suction disc, effectively avoid the problem that powder or granular material is scattered in the early stage of extraction due to small contact area;Meanwhile, when material lifting helical fan rotates with driving shaft, material can be actively lifted to the inside of main pipe of drawing material, cooperate the negative pressure suction of vacuum feeding machine, significantly speed up the material conveying speed, especially applicable to poor mobility or material prone to caking.

Description

Technical Field

[0001] This utility model relates to the field of feeding machine technology, and in particular to a suction device for a vacuum feeding machine. Background Technology

[0002] In existing technology, vacuum feeders, also known as vacuum conveyors, are dust-free, closed-loop pipeline conveying equipment that uses vacuum suction to transport granular and powdery materials. They utilize the pressure difference between the vacuum and the ambient space to create gas flow within the pipeline, driving the movement of the powdery materials and thus completing the conveying process. my country has introduced advanced foreign vacuum technology and continuously improved it; it is now widely used in various light and heavy industrial sectors, including chemical, pharmaceutical, food, metallurgy, building materials, and agricultural products.

[0003] A search revealed a Chinese patent application with patent number 202223160748.7, which discloses a suction device for a vacuum feeder. The filter plate is designed so that the L-shaped plate is positioned by the L-shaped slot, reducing the amount of material adhering to the filter and entering the vacuum feeder through the outer and inner suction pipes. This reduces the likelihood of the filter being stuck to the material, minimizes damage to the filter when adsorbing large particles, and improves the filter's service life.

[0004] The above-mentioned patent has the following shortcomings: In actual use, the suction of materials inside the hopper is mainly carried out by negative pressure, that is, the suction pipe is inserted into the material hopper and the material is extracted by negative pressure; however, the material is extracted layer by layer according to the upper and lower layers, and the extraction speed is relatively slow. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a material suction device for a vacuum feeder.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A suction device for a vacuum feeder includes:

[0008] The main feeding pipe has an installation pipe head fixedly installed at its top, and a feeding hose is fixedly installed at the top of the installation pipe head. The feeding hose is connected to the feed port of the vacuum feeder.

[0009] A drive shaft is located at the bottom of the inner cavity of the main material feeding pipe, and an installation sleeve is fixedly sleeved at the bottom end of the drive shaft. Multiple material lifting spiral fans are welded at equal intervals on the outer wall of the installation sleeve.

[0010] A miniature servo motor is located on the lower part of the outer wall of the main feeding pipe and is controlled by a vacuum feeder. The output shaft of the miniature servo motor is fixedly mounted with a coupling, and a transmission connecting shaft is fixedly mounted at the end of the coupling. The transmission connecting shaft is connected to the drive shaft through a gear pair.

[0011] As a further embodiment of this utility model: a cross bracket is rotatably installed in the middle of the outer wall of the drive shaft, and the cross bracket is fixedly installed in the inner wall of the material extraction main pipe.

[0012] As a further embodiment of this utility model: multiple support columns are fixedly installed at the top of the support arm of the cross bracket, and a protective sleeve is welded to the top of the support column. The bottom end of the protective sleeve is rotatably sleeved on the outer wall of the drive shaft.

[0013] As a further improvement of this utility model: a sealing top cover is fixedly installed on the top of the protective sleeve, and a connecting side tube is welded to one side of the protective sleeve.

[0014] As a further embodiment of this utility model: the bottom of the outer wall of the main material extraction pipe is integrally formed with an installation plate base, and a fixing ring plate is fixedly installed on one side of the installation plate base.

[0015] As a further embodiment of this utility model: a connecting sleeve is integrally formed on one side of the fixed ring disc, and one end of the connecting sleeve is threaded onto the end of the connecting side tube.

[0016] As a further embodiment of this utility model: a motor frame is fixedly sleeved on the outer wall of the micro servo motor, and multiple fixing ear plates are welded at equal intervals to one end of the motor frame, and the fixing ear plates are fixedly installed on the fixing ring plate.

[0017] As a further improvement of this utility model: a wire branch pipe is welded to the outer wall of the motor frame, and a sealed wire sleeve is fixedly installed at the top end of the wire branch pipe.

[0018] Compared with the prior art, the present invention provides a suction device for a vacuum feeder, which has the following advantages:

[0019] 1. The suction device of this vacuum feeder expands the suction area at the bottom of the main suction pipe through the design of the suction plate, effectively avoiding the problem of powder or granular material flying due to small contact area in the initial stage of extraction; at the same time, when the lifting spiral fan rotates with the drive shaft, it can actively lift the material into the main suction pipe. Combined with the negative pressure suction of the vacuum feeder, it significantly speeds up the material conveying speed, which is especially suitable for materials with poor flowability or easy agglomeration.

[0020] 2. The suction device of this vacuum feeder has a protective sleeve that seals the internal space through a sealed top cover to prevent material from entering the transmission components; the fixed ring disc and the mounting plate are sealed with rubber gaskets, and the threaded connection design of the connecting sleeve and the connecting side pipe enhances the sealing performance of the connection between the main suction pipe and the external components, effectively preventing air leakage, ensuring the stability of the negative pressure environment of the vacuum feeder, and improving the reliability of material suction.

[0021] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the overall assembly of this utility model;

[0023] Figure 2 This is a partial cross-sectional view of the overall assembly of this utility model.

[0024] Figure 3 This utility model Figure 2 A magnified schematic diagram of the local structure at point A;

[0025] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0026] In the diagram: 1. Main feeding pipe; 2. Installation pipe head; 3. Feeding hose; 4. Hose clamp; 5. Suction disc; 6. Cross bracket; 7. Support column; 8. Protective sleeve; 9. Sealing top cover; 10. Connecting side pipe; 11. Connecting sleeve; 12. Drive shaft; 13. Installation sleeve; 14. Lifting auger; 15. Driven bevel gear; 16. Drive bevel gear; 17. Transmission connecting shaft; 18. Support bearing; 19. Mounting frame; 20. Coupling; 21. Miniature servo motor; 22. Motor frame; 23. Fixing ring disc; 24. Mounting disc base; 25. Fixing ear plate; 26. Wire branch pipe; 27. Sealing wire sleeve. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] A suction device for a vacuum feeder, such as Figures 1 to 4 As shown, it includes: a suction main pipe 1 connected to a vacuum feeder and a suction auxiliary component disposed at the lower part of the suction main pipe 1.

[0029] The top of the material extraction main pipe 1 is fixedly installed with an installation pipe head 2, and the top of the installation pipe head 2 is fixedly installed with a feeding hose 3. A hose clamp 4 is fixedly sleeved on the outer wall of the connection between the feeding hose 3 and the installation pipe head 2 to ensure the stability of the feeding hose 3 installation.

[0030] The bottom end of the material extraction main pipe 1 is fixedly fitted with a suction plate 5 to prevent powder or granular material from flying during the feeding process and to expand the suction area at the bottom end of the material extraction main pipe 1; the feeding hose 3 is fixedly connected to the inlet of the vacuum feeder, which generates negative pressure through a vacuum pump and then extracts the material through the material extraction main pipe 1.

[0031] Vacuum feeding machines are existing technology and will not be described in detail in this application; the middle part of the outer wall of the mounting tube head 2 is set as a smooth cylindrical surface, which can be installed on other machinery, such as a robotic arm; it can also be held directly by a person.

[0032] The main body of the material suction auxiliary component is a drive shaft 12. A cross bracket 6 is rotatably installed in the middle of the outer wall of the drive shaft 12. The cross bracket 6 is fixedly installed on the inner wall of the material suction main pipe 1. The edge of the bottom face of the cross bracket 6 is chamfered to form a V-shape to avoid affecting the material suction.

[0033] A mounting sleeve 13 is fixedly sleeved at the bottom end of the drive shaft 12. Multiple lifting spiral fans 14 are welded at equal intervals on the outer wall of the mounting sleeve 13. During the rotation of the lifting spiral fans 14, the material is lifted into the material extraction main pipe 1, which speeds up the material extraction speed of the vacuum feeder. In addition, the lifting spiral fans 14 can generate an upward airflow during the rotation, which reduces the occurrence of material flying.

[0034] Multiple support columns 7 are fixedly installed at the top of the support arm of the cross bracket 6. A protective sleeve 8 is welded to the top of the support column 7. The bottom end of the protective sleeve 8 is rotatably sleeved on the outer wall of the drive shaft 12, and the bottom end of the protective sleeve 8 is set as a frustum side wall to ensure the flow of materials.

[0035] A sealing top cover 9 is fixedly installed at the top of the protective sleeve 8. The sealing top cover 9 is used to seal the space inside the protective sleeve 8 to prevent the dispensing materials from entering the protective sleeve 8. A connecting side tube 10 is welded to one side of the protective sleeve 8.

[0036] The bottom of the outer wall of the main material extraction pipe 1 is integrally formed with an installation plate seat 24. A fixing ring 23 is fixedly installed on one side of the installation plate seat 24 by a rubber gasket. A connecting sleeve 11 is integrally formed on one side of the fixing ring 23. One end of the connecting sleeve 11 is inserted into the inside of the main material extraction pipe 1 and threadedly connected to the end of the connecting side pipe 10.

[0037] An installation frame 19 is fixedly installed inside the connecting sleeve 11. Multiple support bearings 18 are fixedly installed inside the installation frame 19. A transmission connecting shaft 17 is fixedly installed on the inner wall of the inner ring of the multiple support bearings 18. A drive bevel gear 16 is fixedly installed at the end of the transmission connecting shaft 17. The drive bevel gear 16 is meshed with a driven bevel gear 15. The driven bevel gear 15 is fixedly installed at the top of the drive shaft 12.

[0038] A motor frame cylinder 22 is provided on one side of the fixed ring disk 23. Multiple fixed ear plates 25 are welded at equal intervals on the outer wall of one end of the motor frame cylinder 22. The fixed ear plates 25 are fixedly connected to the fixed ring disk 23 to make the inside of the motor frame cylinder 22 sealed and prevent powdery materials from entering.

[0039] A micro servo motor 21 is fixedly installed inside the motor frame 22. A coupling 20 is fixedly installed on the output shaft of the micro servo motor 21. A transmission connecting shaft 17 is fixedly installed at the end of the coupling 20.

[0040] The outer wall of the motor frame 22 is welded with a wire branch pipe 26. A sealed wire sleeve 27 is fixedly installed at the top of the wire branch pipe 26. The inside of the sealed wire sleeve 27 is installed with a wire connected to the micro servo motor 21, so that the micro servo motor 21 is controlled by the vacuum feeder (the control system built into the vacuum feeder).

[0041] Working principle:

[0042] Please refer to Figures 1 to 4 Assemble the device as shown in the figure; then connect the feeding hose 3 to the vacuum feeder, and determine the working parameters (e.g., output speed) of the micro servo motor 21 through the control system of the vacuum feeder.

[0043] When using this device, first hold the installation tube head 2, then insert the main suction tube 1 into the powder, so that the suction plate 5 is inserted into the powder, and the powder can contact the lifting spiral fan 14. Then start the vacuum feeder and start the micro servo motor 21. The vacuum feeder generates negative pressure, and the micro servo motor 21 drives the drive shaft 12 to rotate through the transmission connecting shaft 17 and the gear pair. The drive shaft 12 drives the lifting spiral fan 14 to rotate, lifting the powder into the main suction tube 1. Under the action of negative pressure, the powder quickly enters the vacuum feeder.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A suction device for a vacuum feeder, characterized in that, include: The material extraction main pipe (1) has an installation pipe head (2) fixedly installed at its top end. The installation pipe head (2) has a feeding hose (3) fixedly installed at its top end. The feeding hose (3) is connected to the feed port of the vacuum feeder. A drive shaft (12) is located at the bottom of the inner cavity of the material feeding main tube (1), and an installation sleeve (13) is fixedly sleeved at the bottom end of the drive shaft (12). Multiple material lifting spiral fans (14) are welded at equal intervals on the outer wall of the installation sleeve (13). A micro servo motor (21) is located on the lower part of the outer wall of the material feeding main pipe (1) and is controlled by a vacuum feeder. The output shaft of the micro servo motor (21) is fixedly mounted with a coupling (20). The end of the coupling (20) is fixedly mounted with a transmission connecting shaft (17). The transmission connecting shaft (17) is connected to the drive shaft (12) through a gear pair.

2. The material suction device for a vacuum feeder according to claim 1, characterized in that: A cross bracket (6) is rotatably mounted on the middle of the outer wall of the drive shaft (12), and the cross bracket (6) is fixedly mounted on the inner wall of the material extraction main pipe (1).

3. The material suction device for a vacuum feeder according to claim 2, characterized in that: The top of the arm of the cross bracket (6) is fixedly installed with multiple support columns (7), and the top of the support column (7) is welded with a protective sleeve (8). The bottom end of the protective sleeve (8) is rotatably sleeved on the outer wall of the drive shaft (12).

4. The material suction device for a vacuum feeder according to claim 3, characterized in that: The top of the protective sleeve (8) is fixedly installed with a sealing top cover (9), and a connecting side tube (10) is welded to one side of the protective sleeve (8).

5. The material suction device of a vacuum feeder according to claim 1, characterized in that: The bottom of the outer wall of the material extraction main pipe (1) is integrally formed with an installation plate base (24), and a fixing ring plate (23) is fixedly installed on one side of the installation plate base (24).

6. The material suction device for a vacuum feeder according to claim 5, characterized in that: One side of the fixed ring disc (23) is integrally formed with a connecting sleeve (11), and one end of the connecting sleeve (11) is threaded onto the end of the connecting side tube (10).

7. The material suction device for a vacuum feeder according to claim 5, characterized in that: The outer wall of the micro servo motor (21) is fixedly sleeved with a motor frame (22), and a plurality of fixed ear plates (25) are welded at equal intervals at one end of the motor frame (22), and the fixed ear plates (25) are fixedly installed on the fixed ring plate (23).

8. The material suction device for a vacuum feeder according to claim 7, characterized in that: The outer wall of the motor frame (22) is welded with a wire branch pipe (26), and a sealing wire sleeve (27) is fixedly installed at the top end of the wire branch pipe (26).

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