Unattended stock bin unblocking device

Abstract

The invention relates to the technical field of stock bin unblocking, in particular to an unattended stock bin unblocking device which comprises a stock bin body, an intelligent unblocking assembly and a self-adaptive adjusting assembly. The intelligent unblocking assembly realizes material loosening, wall surface cleaning and vibration unblocking through the synergistic effect of a rotating disc, an elastic scraper blade, a telescopic rod and an airflow nozzle; the position adjusting assembly drives the rotating disc to axially move to cover the whole area for unblocking; the self-adaptive adjusting assembly dynamically adjusts air inlet and air outlet through a compression spring and a movable push block, dust invasion is prevented, and heat dissipation is assisted. The problem of stock bin blockage can be efficiently solved, the blockage clearing range and efficiency are improved, meanwhile, the operation stability of equipment is enhanced through a dual dust prevention and temperature control mechanism, and the device is suitable for unmanned management of a large stock bin.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automation control and material handling, specifically to an unattended bin unblocking device. BACKGROUND

[0002] In modern industrial production, the bin as an important part of the material storage and conveying system, its running efficiency directly affects the continuity and safety of the whole production process. However, in practical application, due to the complex and variable characteristics of the material (such as moisture, viscosity, poor flowability, etc.) and the limitation of environmental conditions, the material blocking problem in the bin often occurs, which seriously affects the production efficiency. In order to solve this problem, a variety of bin unblocking devices have been developed in the prior art, but these devices still have significant deficiencies in unattended, intelligent control and efficient unblocking.

[0003] For example, the patent with publication number CN118004603B proposes a unblocking device that drives the rotating drive assembly by gravity and acceleration during the material falling process. This design does not require additional power supply and is suitable for the modification of existing bins. However, this scheme mainly relies on the kinetic energy of the material to drive the unblocking mechanism, and in the case of poor material flowability or complete blockage, it cannot actively start the unblocking action, lacks intelligent judgment and automatic intervention ability, and is difficult to meet the stable operation requirements in unattended scenarios. In addition, this patent does not involve monitoring and feedback mechanism of unblocking state, resulting in lack of real-time perception and dynamic adjustment ability for blocking situation, and the unblocking effect has certain contingency and limitation, especially in the environment of wet and sticky material, which is prone to failure.

[0004] On the other hand, the patent with publication number CN114803183B proposes a unblocking device that combines fixed beams, rotating rods and stirring blades, which realizes material loosening operation by rotating the rotating rod driven by external power. This scheme is simple in structure and easy to implement, but its control system is relatively basic, lacking the ability to identify and accurately unblock the blocked position, with limited unblocking range, which may cause incomplete unblocking in local areas. At the same time, this device does not set up automatic detection and remote control module, which cannot realize automatic start and stop and fault warning under unattended conditions, still needs manual intervention to judge whether blocking occurs, increases the work intensity of operation and maintenance personnel, and reduces the intelligent level of the system.

[0005] In summary, the existing bin unblocking devices in the prior art generally have problems such as response lag, incomplete unblocking, and dependence on manual intervention when facing complex and variable material characteristics, harsh environmental conditions, and increasingly demanding application scenarios for automation. Therefore, it is urgent to develop a new type of bin unblocking device that can realize unattended operation, intelligent identification and automatic unblocking, in order to improve the unblocking efficiency, reduce the maintenance cost, and meet the needs of modern industry for intelligent and automated equipment. SUMMARY

[0006] In view of the above, in order to overcome the defects of the prior art, the unmanned material bin unblocking device effectively solves the problems in the prior art.

[0007] To achieve the above object, the technical scheme adopted by the present application is as follows: an unmanned material bin unblocking device, comprising a material bin body, an intelligent unblocking assembly and a self-adaptive adjusting assembly, a material inlet is arranged at the top of the material bin body, a discharge port is arranged at the outer end of the bottom of the material bin body, a pressure sensor is arranged outside the discharge port, a drive shaft is arranged inside the material bin body, a driven gear is connected to the outer end of the drive shaft, a positioning assembly is arranged outside the material bin body, the intelligent unblocking assembly is arranged at the outer end of the positioning assembly, the intelligent unblocking assembly comprises a rotating disc, a flow guide groove is formed at the outer end of the rotating disc, an elastic scraper is arranged at the inner side of the rotating disc, an extension rod is arranged at the outer end of the rotating disc, a vibration head is connected to the outer end of the extension rod, an airflow nozzle is arranged inside the rotating disc, an air duct is formed inside the rotating disc, and the self-adaptive adjusting assembly is arranged at the outer end of the rotating disc.

[0008] Further, the drive shaft drives the rotating disc to rotate through the driven gear, and the rotating disc is concentrically arranged with the material bin body.

[0009] Further, the positioning assembly comprises a support seat, a stepping motor is arranged at the outer end of the support seat, a threaded rod is connected to the output end of the stepping motor, a sliding block is arranged at the outer end of the threaded rod, a connecting arm is arranged at the outer end of the sliding block, and a positioning seat is connected to the outer end of the connecting arm.

[0010] Further, the stepping motor drives the threaded rod to rotate, and the threaded rod drives the sliding block to move transversely along the support seat.

[0011] Further, the sliding block is fixedly connected with the connecting arm and the positioning seat, and the positioning seat slides inside the flow guide groove.

[0012] Further, the elastic scraper is attached to the inner wall of the material bin body, and the material bin body does not directly contact the extension rod.

[0013] Further, the extension rod is annularly distributed with four groups inside the rotating disc, and the airflow nozzle forms a full-enclosing structure through the air duct.

[0014] Further, the self-adapting adjusting assembly comprises an adjusting seat, air inlet holes are formed on both sides of the inside of the adjusting seat, filter sheets are arranged in the middle sections of the air inlet holes, a buffer cavity is formed in the inside of the adjusting seat, a compression spring is arranged in the inside of the buffer cavity, a movable push block is connected to the outer end of the compression spring, air guide holes are formed in the bottoms of both ends of the buffer cavity, and one-way exhaust valves are arranged in the ends of the air guide holes.

[0015] Further, the compression spring is elastically connected with the movable push block, and the outer contour of the movable push block is matched with the contour of the buffer cavity.

[0016] Further, the air inlet holes are communicated with the air guide holes through the buffer cavity, and the air guide holes are communicated with the air duct through the one-way exhaust valves.

[0017] Compared with the prior art, the beneficial effects of the present application are: 1. The airflow nozzle sprays high-speed airflow into the inside of the material bin body through the air duct, loosens the material, the elastic scraper rotates synchronously with the rotating disc to clean the sticky material adhered to the inner wall of the material bin in real time, the flow guide groove guides the flow direction of the material to avoid local accumulation, when the pressure is detected to be abnormal, the telescopic rod drives the vibration head to apply high-frequency vibration to the blocked area, ensuring that the unblocking operation is accurate and efficient, and through the cooperation of airflow injection and mechanical vibration, the unblocking range and efficiency are significantly improved. 2. The step motor is started to drive the threaded rod to rotate, the sliding block is driven to move horizontally along the support seat, the rotating disc is driven to axially displace in the flow guide groove through the linkage of the connecting arm and the positioning seat, and the whole unblocking area of the material bin body is covered, the position of the rotating disc is periodically adjusted, the large material bin is efficiently unblocked in sections, and the problem that the whole unblocking is difficult due to the excessively large size of the material bin is solved.

[0018] 3. During the locking process of the telescopic rod and the material bin body, the rotating disc rotates synchronously with the driving shaft, when the adjusting seat is inverted due to rotation, the movable push block extrudes the compression spring to connect the air inlet hole and the buffer cavity, at this time, the clean air filtered by the filter sheet enters the buffer cavity to prevent external dust from entering the airflow nozzle, when the adjusting seat is upright, the movable push block moves downward to stretch the compression spring, the clean gas in the buffer cavity enters the inside of the rotating disc through the air guide hole and the air duct to assist heat dissipation, at the same time, the gas is discharged from the gap between the telescopic rod and the material bin to form a dustproof barrier and synchronously take out the internal dust, so that the equipment operation stability is significantly improved through the double dustproof and temperature control mechanisms. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole three-dimensional structure schematic diagram of the unmanned material bin unblocking device. Figure 2 It is a structure schematic diagram of the intelligent unblocking assembly of the unmanned material bin unblocking device. Figure 3 This is a schematic cross-sectional view of the intelligent blockage clearing component of an unattended silo blockage clearing device of the present invention; Figure 4 This is a schematic diagram of the overall cross-sectional structure of an unattended silo blockage clearing device of the present invention; Figure 5 The present invention is an unattended silo blocking device Figure 4 A in the middle is an enlarged structural diagram; Figure 6 This is a schematic diagram of the overall longitudinal structure of an unattended silo blockage clearing device of the present invention; Figure 7 The present invention is an unattended silo blocking device Figure 6 Enlarged structural diagram at point B in the middle.

[0020] Reference numerals In the picture: 1. Silo body; 2. Intelligent clearing assembly; 3. Adaptive adjustment assembly; 4. Material inlet; 5. Discharge port; 6. Pressure sensor; 7. Drive shaft; 8. Driven gear; 9. Positioning assembly; 10. Rotating disc; 11. Guide groove; 12. Elastic scraper; 13. Telescopic rod; 14. Vibrating head; 15. Air flow nozzle; 16. Air duct; 17. Support seat; 18. Stepper motor; 19. Threaded rod; 20. Sliding block; 21. Connecting arm; 22. Positioning seat; 23. Adjustment seat; 24. Air inlet; 25. Filter; 26. Buffer chamber; 27. Compression spring; 28. Movable push block; 29. ​​Air guide hole; 30. One-way exhaust valve. DETAILED DESCRIPTION

[0021] The present invention provides an unmanned silo blockage clearing device, which realizes efficient cleaning of blocked materials inside the silo through intelligent design and multi-component collaborative work. Figure 1 To the attached Figure 7 The specific implementation of the present invention is described in detail with reference to the specific numbers of each component.

[0022] like Figure 1 As shown, the device primarily comprises a silo body 1, an intelligent blockage clearing assembly 2, and an adaptive adjustment assembly 3. A material inlet 4 is located at the top of the silo body 1, and a discharge port 5 is located at the outer end of the bottom. A pressure sensor 6 is mounted on the outer side of the discharge port 5. A drive shaft 7 is located within the silo body 1, and a driven gear 8 is connected to the outer end of the drive shaft 7, which transmits power to the intelligent blockage clearing assembly 2. A position adjustment assembly 9 is also located on the outside of the silo body 1. This assembly works in conjunction with the intelligent blockage clearing assembly 2 to dynamically adjust the blockage clearing range.

[0023] The intelligent clearing component 2 is the core part of the device. Figure 2 and Figure 3As shown, it includes rotating disc 10, flow guide groove 11, elastic scraper 12, telescopic rod 13, vibration head 14, air flow nozzle 15 and air duct 16. Rotating disc 10 is concentrically arranged with bin body 1 and is driven to rotate by driving shaft 7 and driven gear 8. Flow guide groove 11 is arranged at the outer end of rotating disc 10, which is used to guide the flow direction of the material and prevent local accumulation. Elastic scraper 12 is arranged at the inner side of rotating disc 10, which is in close contact with the inner wall of bin body 1 and can clean the sticky material adhered to the inner wall of the bin in real time during rotation. Four groups of telescopic rods 13 are arranged in a ring shape at the outer end of rotating disc 10, and vibration head 14 is connected to the outer end of each telescopic rod 13. When an abnormal pressure is detected, telescopic rod 13 drives vibration head 14 to apply high-frequency vibration to the blocked area, ensuring accurate and efficient unblocking action. Air flow nozzle 15 is arranged inside rotating disc 10, which forms a full-enclosing structure with air duct 16 and sprays high-speed air flow into bin body 1 to loosen the material. The cooperation of air flow injection and mechanical vibration significantly improves the unblocking range and efficiency.

[0024] The design of positioning assembly 9 further enhances the applicability of the device, as shown in Figure 4 and Figure 5 Positioning assembly 9 includes support seat 17, stepper motor 18, threaded rod 19, sliding block 20, connecting arm 21 and positioning seat 22. Support seat 17 is fixed to the outside of bin body 1, threaded rod 19 is connected to the output end of stepper motor 18, and sliding block 20 is arranged at the outer end of threaded rod 19. Stepper motor 18 drives threaded rod 19 to rotate, which makes sliding block 20 move horizontally along support seat 17. Sliding block 20 is fixedly connected with connecting arm 21 and positioning seat 22, and positioning seat 22 slides inside flow guide groove 11, thereby driving rotating disc 10 to axially displace inside flow guide groove 11. By periodically adjusting the position of rotating disc 10, the entire unblocking area of bin body 1 can be covered, solving the problem of difficulty in overall unblocking caused by the excessive size of the bin.

[0025] The design of self-adaptive adjustment assembly 3 further improves the running stability of the device, as shown in Figure 6 and Figure 7As shown, the adaptive adjustment assembly 3 includes an adjustment seat 23, air inlet holes 24, a filter sheet 25, a buffer cavity 26, a compression spring 27, a movable push block 28, air guide holes 29, and a one-way exhaust valve 30. The inside of the adjustment seat 23 is provided with air inlet holes 24, the middle section of the air inlet holes 24 is provided with a filter sheet 25 for filtering the incoming air. The inside of the adjustment seat 23 is provided with a buffer cavity 26, the inside of the buffer cavity 26 is provided with a compression spring 27, the outer end of the compression spring 27 is connected with a movable push block 28. The bottom of the buffer cavity 26 is provided with air guide holes 29, the end of the air guide holes 29 is provided with a one-way exhaust valve 30. When the adjustment seat 23 is inverted due to rotation, the movable push block 28 extrudes the compression spring 27, so that the air inlet holes 24 are communicated with the buffer cavity 26, at this time, the clean air filtered by the filter sheet 25 enters the buffer cavity 26, preventing external dust from entering the airflow nozzle 15. When the adjustment seat 23 is upright, the movable push block 28 moves downward to stretch the compression spring 27, the clean gas in the buffer cavity 26 enters the inside of the rotating disc 10 through the air guide holes 29 and the air channel 16 to assist heat dissipation, at the same time, the gas is discharged from the gap between the telescopic rod 13 and the bin body 1, forming a dustproof barrier and synchronously taking out the internal dust. This double dustproof and temperature control mechanism significantly improves the operation stability of the equipment.

[0026] The working principle of the device is as follows: first, the material enters the bin body 1 through the material inlet 4, when the discharge port 5 is blocked, the pressure sensor 6 detects the abnormal pressure and sends a signal. After receiving the signal, the control system starts the stepping motor 18, the stepping motor 18 drives the threaded rod 19 to rotate, drives the sliding block 20 to move transversely along the support seat 17, and drives the rotating disc 10 to axially displace in the flow guide groove 11 through the connection arm 21 and the positioning seat 22 linkage, covering the whole cleaning area of the bin body 1. The rotating disc 10 rotates synchronously with the driving shaft 7, the elastic scraper 12 cleans the sticky material adhered to the inner wall of the bin in real time, and the flow guide groove 11 guides the flow direction of the material to avoid local accumulation. At the same time, the airflow nozzle 15 sprays high-speed airflow into the bin body 1 through the air channel 16 to loosen the material. If the pressure anomaly is still not removed, the telescopic rod 13 drives the vibration head 14 to apply high-frequency vibration to the blocked area to ensure that the cleaning action is accurate and efficient. In the whole process, the adaptive adjustment assembly 3 automatically adjusts the air inlet and exhaust mode according to the rotation state of the rotating disc 10, prevents external dust from entering, and assists heat dissipation to ensure long-term stable operation of the equipment.

[0027] In order to further optimize the effect of clearing the blockage, the application also introduces a clearing algorithm based on the characteristics of the material. Assuming that the flowability coefficient of the material in the silo is k, and the pressure change rate of the blocked area is ΔP / Δt, then the clearing priority P can be expressed as P=k×(ΔP / Δt). This formula shows that the poorer the flowability of the material or the greater the pressure change rate of the area, the higher the clearing priority. The control system adjusts the axial displacement of the rotating disc 10 and the working frequency of the vibration head 14 in real time according to this formula, ensuring that the clearing action is always aimed at the area that needs to be processed the most.

[0028] In addition, the material selection of the device is also carefully designed. The silo body 1 is made of high-strength carbon steel, which has good pressure resistance and wear resistance; the elastic scraper 12 is made of high-molecular polyurethane material, which has excellent elasticity and corrosion resistance; the airflow nozzle 15 and the air guide hole 29 are made of stainless steel material, which ensures that the performance will not be affected by corrosion during long-term use. The selection of these materials not only improves the overall durability of the device, but also prolongs the service life of the equipment.

[0029] In summary, the application realizes efficient cleaning of the blocked material in the silo through the cooperative work of the intelligent clearing assembly 2, the position adjusting assembly 9 and the self-adaptive adjusting assembly 3. Its unique design and optimized operation mechanism enable it to be widely used in large-scale silo clearing scenes in the chemical, food processing, building material and other industries, significantly improving the clearing efficiency and equipment operation stability.

[0030] The above describes only the preferred specific embodiments of the application, but the protection scope of the application is not limited thereto, and any skilled person in the art can make equivalent substitutions or changes to the technical solutions and inventive concepts of the application within the technical scope disclosed by the application, which should be covered within the protection scope of the application.

[0031] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0032] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that variations, modifications, substitutions and changes can be made by those skilled in the art without departing from the scope of the present application.

Claims

1. An unattended clog-cleaning device for a silo, comprising a silo main body (1), an intelligent clog-cleaning assembly (2) and a self-adaptive adjusting assembly (3), characterized in that, The top of the bin body (1) is provided with a material inlet (4), and the bottom outer end of the bin body (1) is provided with a discharge port (5), the outer side of the discharge port (5) is provided with a pressure sensor (6), the inside of the bin body (1) is provided with a driving shaft (7), and the outer end of the driving shaft (7) is connected with a driven gear (8), the outside of the bin body (1) is provided with a positioning assembly (9), the outer end of the positioning assembly (9) is provided with an intelligent clearing assembly (2), the intelligent clearing assembly (2) comprises a rotating disc (10), the outer end of the rotating disc (10) is provided with a flow guide groove (11), and the inner side of the rotating disc (10) is provided with an elastic scraper (12), the outer end of the rotating disc (10) is provided with a telescopic rod (13), and the outer end of the telescopic rod (13) is connected with a vibration head (14), the inside of the rotating disc (10) is provided with an airflow nozzle (15), and the inside of the rotating disc (10) is provided with an air channel (16), and the outer end of the rotating disc (10) is provided with a self-adaptive adjusting assembly (3).

2. The unattended clog removal device of claim 1, wherein, The driving shaft (7) drives the rotating disc (10) to rotate through the driven gear (8), and the rotating disc (10) is coaxially arranged with the bin body (1).

3. The unattended bin de-clogging device of claim 1, wherein, The positioning assembly (9) comprises a supporting seat (17), the outer end of the supporting seat (17) is provided with a stepping motor (18), and the output end of the stepping motor (18) is connected with a threaded rod (19), the outer end of the threaded rod (19) is provided with a sliding block (20), the outer end of the sliding block (20) is provided with a connecting arm (21), and the outer end of the connecting arm (21) is connected with a positioning seat (22).

4. The unattended plug removal device of claim 3, wherein, The stepping motor (18) drives the threaded rod (19) to rotate, and the threaded rod (19) drives the sliding block (20) to move transversely along the supporting seat (17).

5. The unattended plug removal device of claim 4, wherein, The sliding block (20) is fixedly connected with the connecting arm (21) and the positioning seat (22), and the positioning seat (22) slides in the flow guide groove (11).

6. The unattended plug removal device of claim 1, wherein, The elastic scraper (12) is attached to the inner wall of the bin body (1), and the bin body (1) is not in direct contact with the telescopic rod (13).

7. The unattended plug removal device of claim 1, wherein, The telescopic rod (13) is annularly distributed in four groups inside the rotating disc (10), and the airflow nozzle (15) forms a full-enclosing structure through the air channel (16).

8. The unattended plug removal device of claim 1, wherein, The self-adaptive adjusting assembly (3) comprises an adjusting seat (23), air inlet holes (24) are formed in the inside of the adjusting seat (23), filter pieces (25) are arranged in the middle sections of the air inlet holes (24), a buffer cavity (26) is formed in the inside of the adjusting seat (23), a compression spring (27) is arranged in the inside of the buffer cavity (26), the outer end of the compression spring (27) is connected with a movable push block (28), air guide holes (29) are formed in the bottom of the buffer cavity (26), and one-way exhaust valves (30) are arranged in the tail ends of the air guide holes (29).

9. The unattended plug clearing device for a bin according to claim 8, wherein, The compression spring (27) is elastically connected with the movable push block (28), and the outer contour of the movable push block (28) matches the contour of the buffer cavity (26), the air inlet hole (24) is connected with the air guide hole (29) through the buffer cavity (26), and the air guide hole (29) is connected with the air channel (16) through the one-way exhaust valve (30).

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