Self-cleaning feeder

Abstract

The utility model provides a self-cleaning feeder which comprises a box body, a feeding roller and a pneumatic cleaning system, the feeding roller is arranged in the box body, the pneumatic cleaning system is arranged on the box body, the pneumatic cleaning system comprises a distribution pipe and a plurality of blowing pipes, the distribution pipe is connected with compressed air through an air pipe, and the blowing pipes are connected with the box body. The distribution pipe and the feeding roller are arranged in parallel, a plurality of blowing pipes are uniformly arranged on the distribution pipe at intervals and are communicated with the distribution pipe, a nozzle is arranged at the bottom end of each blowing pipe, and the nozzles of the blowing pipes extend into the box body and directly face the feeding roller. Through the synergistic effect of directional airflow injection of the pneumatic cleaning system and the anti-sticking feeding roller, automatic removal of objects adhering to the surface of the feeding roller is achieved, shutdown intervention is not needed, real-time cleaning in the production process is achieved, production efficiency is higher, cleaning is more timely and thorough, and cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of feeder technology, and in particular to a self-cleaning feeder. Background Technology

[0002] In the feed industry, feed grinders are typically equipped with metal roller feeders, gate feeders, or auger feeders. Among these, roller feeders are widely used due to their high conveying efficiency, reliable operation, simple structure, complete functions, good sealing, low noise, and attractive appearance. However, when dealing with high-moisture or high-oil materials, roller feeders suffer from severe material adhesion, easily adhering to the surface of the feed rollers, leading to blockages, reduced efficiency, and consequently affecting the grinder's output.

[0003] Currently, the conventional methods for cleaning feed rollers are: manual scraping after machine shutdown or rinsing with a high-pressure air gun. However, conventional cleaning methods have the following drawbacks: 1. Low cleaning efficiency, long cleaning time per cycle, and the risk of material residue contamination if cleaning is not timely; 2. Manual cleaning leads to production line equipment downtime for maintenance, affecting production and incurring high costs; 3. Incomplete cleaning leads to sticky material and mold growth, causing cross-contamination in subsequent batches. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a self-cleaning feeder to solve the problems of high frequency of feeder shutdown for cleaning, high manual maintenance costs, and risk of cross-contamination caused by material adhesion in the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a self-cleaning feeder, including a housing, a feeding roller, and a pneumatic cleaning system. The feeding roller is disposed inside the housing, and the pneumatic cleaning system is disposed on the housing. The pneumatic cleaning system includes a distribution pipe and multiple blow pipes. The distribution pipe is connected to compressed air through an air pipe and is arranged parallel to the feeding roller. The multiple blow pipes are evenly spaced on the distribution pipe and are connected to the distribution pipe. The bottom end of each blow pipe is provided with a nozzle, and the blow pipe extends the nozzle into the housing and faces the feeding roller.

[0006] In one embodiment of the present invention, the pneumatic cleaning system is disposed obliquely above the feeding roller, and the blowpipe is arranged obliquely downward.

[0007] In one embodiment of this utility model, multiple blowpipes are arranged in parallel and located in the same plane.

[0008] In one embodiment of the present invention, the top of the box is provided with a cover plate, and the cover plate has an opening for inserting the blow pipe.

[0009] In one embodiment of the present invention, the top end of the blowpipe is detachably connected to the distribution pipe via a flexible connector.

[0010] In one embodiment of this utility model, the distribution tube is detachably connected to the air tube via a quick-release connector.

[0011] In one embodiment of this utility model, a solenoid valve and a filter pressure reducing valve are connected to the air pipe, and the solenoid valve is electrically connected to the PLC control system.

[0012] In one embodiment of the present invention, the surface of the feeding roller is coated with an anti-stick coating, which is a Teflon coating.

[0013] In one embodiment of the present invention, the two ends of the feeding roller are rotatably connected to the housing, and the surface of the feeding roller is provided with a plurality of first baffles distributed circumferentially, and a plurality of second baffles distributed axially are provided between adjacent first baffles, and a feeding groove is formed between adjacent first baffles and second baffles.

[0014] In one embodiment of this utility model, the cross-section of the feeding trough is arc-shaped.

[0015] As described above, the self-cleaning feeder of this utility model has the following beneficial effects: This utility model achieves automatic removal of the surface of the feed roller by means of the directional airflow jet of the pneumatic cleaning system and the synergistic effect of the anti-stick feed roller, without the need for machine stoppage intervention, realizing real-time cleaning during the production process, resulting in higher production efficiency, more timely and thorough cleaning, and lower cost. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the self-cleaning feeder disclosed in the embodiments of this utility model.

[0017] Figure 2 This is a cross-sectional schematic diagram of the self-cleaning feeder disclosed in the embodiments of this utility model at the pneumatic cleaning system.

[0018] Figure 3 This is a schematic diagram of the pneumatic cleaning system disclosed in the embodiments of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the feeding roller disclosed in the embodiments of this utility model.

[0020] Component designation explanation

[0021] 1. Housing; 11. Cover plate; 2. Feed roller; 21. First baffle; 22. Second baffle; 3. Pneumatic cleaning system; 31. Filter pressure reducing valve; 32. Solenoid valve; 33. Air pipe; 34. Quick-release connector; 35. Distribution pipe; 36. Union connector; 37. Blowpipe; 38. Nozzle. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0023] Please see Figure 1 This utility model provides a self-cleaning feeder, including a housing 1, a feeding roller 2 and a pneumatic cleaning system 3. The housing 1 has an inlet at the top and an outlet at the bottom. The feeding roller 2 is installed inside the housing 1 and is driven to rotate by a drive mechanism. The pneumatic cleaning system 3 is installed on the housing 1 and is used to automatically clean the adhering substances on the surface of the feeding roller 2.

[0024] refer to Figures 1-3 The pneumatic cleaning system 3 includes a distribution pipe 35 and multiple blow pipes 37. The distribution pipe 35 is connected to external compressed air through an air pipe 33. The distribution pipe 35 is arranged parallel to the feeding roller 2. The multiple blow pipes 37 are evenly spaced on the distribution pipe 35 and connected to the distribution pipe 35. The bottom end of the blow pipe 37 is provided with a nozzle 38. The top of the housing 1 is provided with a cover plate 11. The cover plate 11 has an opening for the blow pipe 37 to be inserted. The blow pipe 37 extends the nozzle 38 into the housing 1 from the opening.

[0025] Furthermore, the pneumatic cleaning system 3 is positioned diagonally above the feeding roller 2, and the blow pipes 37 are arranged at an angle downwards, with multiple blow pipes 37 arranged parallel to each other and located in the same plane. Installing the pneumatic cleaning system 3 diagonally above the feeding roller 2 does not affect the operation of the feeding roller 2, and also saves space, resulting in a more reasonable layout.

[0026] To fully cover the length range of the feed roller 2, the pneumatic cleaning system 3 includes at least two distribution pipes 35, each of which is equipped with multiple blow pipes 37. Each distribution pipe 35 is connected to an air pipe 33, and all distribution pipes 35 are located in the same straight line.

[0027] To facilitate disassembly, assembly, or maintenance of the pneumatic cleaning system 3, the top end of the blow pipe 37 is detachably connected to the distribution pipe 35 via a union 36; the distribution pipe 35 is detachably connected to the air pipe 33 via a quick-release connector 34.

[0028] Furthermore, the air pipe 33 is connected to a solenoid valve 32 and a filter pressure reducing valve 31. The filter pressure reducing valve 31 can reduce the pressure and filter the incoming compressed air. The solenoid valve 32 is closer to the connection end between the air pipe 33 and the distribution pipe 35. The solenoid valve 32 is electrically connected to the PLC control system and is used to control the on / off of compressed air and adjust the pressure of compressed air.

[0029] In one embodiment of this utility model, the surface of the feeding roller 2 is coated with an anti-stick coating, which is a Teflon (PTFE) coating. The Teflon coating can effectively prevent sticking and reduce material adhesion. Furthermore, the low surface energy characteristics of the Teflon coating and the airflow scouring form a synergistic anti-sticking effect. Under the synergistic action of the airflow shearing force and the anti-sticking effect of the Teflon surface, the material adhering to the feeding roller 2 is detached from the roller surface and falls into the crushing chamber below the housing 1.

[0030] refer to Figure 4 The two ends of the feeding roller 2 are rotatably connected to the housing 1. The surface of the feeding roller 2 is provided with a plurality of first baffles 21 distributed circumferentially, and a plurality of second baffles 22 distributed axially are provided between adjacent first baffles 21. The adjacent first baffles 21 and second baffles 22 form a feeding trough. The nozzle 38 of the blow pipe 37 is directly facing the feeding trough, which can thoroughly clean each feeding trough.

[0031] Furthermore, the cross-section of the feeding trough is arc-shaped. Compared with a rectangular trough, the arc-shaped trough can reduce the accumulation of material in the corners and is easier to clean.

[0032] Instructions for Use: When the main motor of the crusher starts, the air damper sensor of the feeder detects the feeder's start and then sends a signal to the PLC control system to activate the solenoid valve. At this time, the pneumatic cleaning system enters the cleaning mode: the solenoid valve opens once at a set frequency at regular intervals (it can also be opened manually). When open, compressed air is filtered and reduced in pressure by the filter pressure reducing valve, and then evenly distributed to each spray pipe through the equal pressure chamber of the distribution pipe. The nozzles of the spray pipes cover the surface of the feed roller with a fan-shaped airflow. The pneumatic cleaning system, through the solenoid valve and the PLC control system, realizes the directional injection of compressed air, which, together with the rotational movement of the Teflon feed roller, forms a dynamic cleaning, realizing the automatic removal of the adhering substances on the surface of the feed roller without the need for machine shutdown.

[0033] In summary, this invention achieves automated removal of adhering substances from the surface of the feed roller through the synergistic effect of the directional airflow jet of the pneumatic cleaning system and the anti-stick feed roller. This eliminates the need for machine downtime, enabling real-time cleaning during production, resulting in higher production efficiency, more timely and thorough cleaning, and lower costs. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and possesses high industrial application value.

[0034] The terms used in this specification, such as "upper", "lower", "left", "right", "front", "back", "middle" and "one", are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

[0035] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. All equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A self-cleaning feeder, characterized in that, The device includes a housing, a feeding roller, and a pneumatic cleaning system. The feeding roller is disposed inside the housing, and the pneumatic cleaning system is disposed on the housing. The pneumatic cleaning system includes a distribution pipe and multiple blow pipes. The distribution pipe is connected to compressed air through an air pipe and is arranged parallel to the feeding roller. The multiple blow pipes are evenly spaced on the distribution pipe and are connected to the distribution pipe. The bottom end of each blow pipe is provided with a nozzle, and the blow pipe extends the nozzle into the housing and faces the feeding roller. The two ends of the feeding roller are rotatably connected to the housing. The surface of the feeding roller is provided with a plurality of first baffles distributed circumferentially, and a plurality of second baffles distributed axially are provided between adjacent first baffles. The adjacent first baffles and second baffles form a feeding trough.

2. The self-cleaning feeder according to claim 1, characterized in that, The pneumatic cleaning system is located diagonally above the feed roller, and the blowpipe is arranged at an angle downwards.

3. The self-cleaning feeder according to claim 1, characterized in that, Multiple jet pipes are arranged in parallel and located in the same plane.

4. The self-cleaning feeder according to claim 1, characterized in that, The top of the housing is provided with a cover plate, and the cover plate has an opening for inserting the blow pipe.

5. The self-cleaning feeder according to claim 1, characterized in that, The top end of the blowpipe is detachably connected to the distribution pipe via a union.

6. The self-cleaning feeder according to claim 1, characterized in that, The distribution tube is detachably connected to the air tube via a quick-release connector.

7. The self-cleaning feeder according to claim 1, characterized in that, The air pipe is connected to a solenoid valve and a filter pressure reducing valve, and the solenoid valve is electrically connected to the PLC control system.

8. The self-cleaning feeder according to claim 1, characterized in that, The surface of the feed roller is coated with an anti-stick coating, which is a Teflon coating.

9. The self-cleaning feeder according to claim 1, characterized in that, The feed trough has an arc-shaped cross-section.

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