Corrugated roller air draft device

Abstract

The utility model discloses a corrugated roller air draft device which comprises an exhaust fan, the outer wall of the exhaust fan is fixedly connected with an air inlet pipe, the air inlet pipe is communicated with the interior of the exhaust fan, a filter plate is installed at the bottom in the air inlet pipe, the inner wall of the air inlet pipe is rotationally connected with a reciprocating lead screw, the threaded section of the reciprocating lead screw is in threaded connection with a lead screw sleeve, and the threaded section of the reciprocating lead screw is in threaded connection with the lead screw sleeve. A discharging groove is formed in the bottom in the air inlet pipe, and the scraper is connected to the position over the discharging groove in a sliding mode. The reciprocating lead screw is designed to drive the lead screw sleeve and the scraping plate to slide on the surface of the filter plate to clean impurities, the automatic cleaning process is achieved, paper fibers and the impurities on the filter plate can be cleaned in time in the operation period of the exhaust fan, shutdown operation is not needed, and the cost is reduced. Compared with the design of frequent shutdown for cleaning the filter screen in the background technology, the automatic cleaning mode has the advantages that the cleaning efficiency is greatly improved, the shutdown time in the production process is reduced, and the continuity and stability of production are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust devices, in particular to an exhaust device for a corrugating roll. Background Art

[0002] Corrugated board is a multi-layer adhesive body, which is composed of at least one layer of corrugated core paper sandwich and one layer of cardboard. It has high mechanical strength and can withstand collisions and drops during handling. When the existing corrugated paper is produced, a hot corrugating roll is required to press and form the wet cardboard. However, the drying of corrugated paper adopts natural evaporation or heat treatment, resulting in long production time and increased production costs for enterprises.

[0003] The Chinese utility model with the authorization announcement number CN219600574U discloses an exhaust device for a corrugating roll. When the device is in use, through the arranged filter screen, the paper fibers of the corrugated paper can be blocked to prevent the paper fibers from entering the inside of the exhaust fan, affecting the normal operation of the exhaust fan and ensuring the normal exhaust operation of the exhaust fan. And through the arranged lifting plate, it is convenient to take out the mounting plate from the mounting groove and convenient to remove the filter screen for cleaning. However, in actual use, after the filter screen is used for a long time, it is easily blocked by paper fibers and other impurities and needs to be cleaned frequently. Otherwise, the exhaust effect will be affected. When cleaning, the exhaust fan needs to be shut down, resulting in discontinuous production. Therefore, it is necessary to redesign an exhaust device for a corrugating roll in view of the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art and provide an exhaust device for a corrugating roll.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An exhaust device for a corrugating roll, comprising an exhaust fan, an air inlet pipe fixedly connected to the outer wall of the exhaust fan, the air inlet pipe being communicated with the inside of the exhaust fan, a filter plate installed at the bottom inside the air inlet pipe, a reciprocating lead screw rotatably connected to the inner wall of the air inlet pipe, a lead screw sleeve threadedly connected to the threaded section of the reciprocating lead screw, the lead screw sleeve being connected to a scraper through a connecting mechanism, the scraper being slidably connected to the outer wall of the filter plate, a material dropping groove being opened at the bottom inside the air inlet pipe, and the scraper being slidably connected directly above the material dropping groove.

[0007] Preferably, the connecting mechanism includes a sliding rod slidably connected to the outer wall of the lead screw sleeve, the end of the sliding rod being fixedly connected to the scraper, and a limiting block fixedly connected to the end of the sliding rod.

[0008] Preferably, a spring is sleeved on the outer wall of the sliding rod, one end of the spring being fixedly connected to the limiting block, and the other end of the spring being fixedly connected to the lead screw sleeve.

[0009] Preferably, a fixing plate is fixedly connected to the outer wall of the air inlet pipe, and blades are rotatably connected to the outer wall of the fixing plate.

[0010] Preferably, two sets of transmission wheels are rotatably connected to the outer wall of the air inlet pipe. The two sets of transmission wheels are connected by a transmission belt, and the two sets of transmission wheels are coaxially and fixedly connected to the reciprocating lead screw and the blades respectively.

[0011] Preferably, a limiting rod is fixedly connected to the inner wall of the air inlet pipe, and the lead screw sleeve is slidably connected to the outer wall of the limiting rod.

[0012] The utility model has the following beneficial effects:

[0013] 1. By designing a reciprocating lead screw to drive the lead screw sleeve and the scraper to slide on the surface of the filter plate to clean impurities, the utility model realizes an automatic cleaning process. This design enables the paper fibers and impurities on the filter plate to be cleaned in time during the operation of the exhaust fan, eliminating the need for shutdown operations. Compared with the design in the background technology that requires frequent shutdowns to clean the filter net, this automatic cleaning method greatly improves the cleaning efficiency, reduces the shutdown time during the production process, and ensures the continuity and stability of production.

[0014] 2. By setting components such as spring 15, the spring provides appropriate elastic force to ensure that the scraper is in close contact with the surface of the filter plate, further improving the cleaning effect. Compared with the manual cleaning design in the background technology, this device ensures that the filter plate is always in good working condition, extends the service life of the filter plate and the exhaust fan, and improves the working efficiency and long-term stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an air extraction device for a corrugating roll proposed by the utility model;

[0016] Figure 2 is Figure 1 a cross-sectional view.

[0017] Figure 3 is Figure 2 a schematic structural diagram of components such as the lead screw sleeve and the scraper in

[0018] In the figure: 1. Exhaust fan; 2. Air inlet pipe; 3. Filter plate; 4. Transmission wheel; 5. Transmission belt; 6. Blade; 7. Fixing plate; 8. Reciprocating lead screw; 9. Limiting rod; 10. Discharge chute; 11. Lead screw sleeve; 12. Scraper; 13. Slide bar; 14. Limiting block; 15. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] Referring to Figures 1 - 3 , a corrugating roll air extraction device includes an air extractor 1. An air inlet pipe 2 is fixedly connected to the outer wall of the air extractor 1. The air inlet pipe 2 is communicated with the inside of the air extractor 1. A filter plate 3 is installed at the bottom inside the air inlet pipe 2. A reciprocating lead screw 8 is rotatably connected to the inner wall of the air inlet pipe 2. A lead screw sleeve 11 is threadedly connected to the threaded section of the reciprocating lead screw 8. The lead screw sleeve 11 is connected to a scraper 12 through a connecting mechanism. The scraper 12 is slidably connected to the outer wall of the filter plate 3. A material dropping groove 10 is formed at the bottom inside the air inlet pipe 2. The scraper 12 is slidably connected directly above the material dropping groove 10.

[0021] The filter plate 3 can effectively block paper fibers and impurities, preventing them from entering the inside of the air extractor 1 and ensuring the normal operation of the air extractor 1. The reciprocating lead screw 8 drives the lead screw sleeve 11 and the scraper 12 to slide, which can regularly clean the impurities on the filter plate 3, move them to the material dropping groove 10, facilitate centralized cleaning, reduce the blockage problem of the filter plate 3, improve the working efficiency and stability of the system. At the same time, during the cleaning process, the air extractor 1 does not need to stop working, thereby ensuring the continuity of production.

[0022] The connecting mechanism includes a slide bar 13 slidably connected to the outer wall of the lead screw sleeve 11. The end of the slide bar 13 is fixedly connected to the scraper 12. A limit block 14 is fixedly connected to the end of the slide bar 13. A spring 15 is sleeved on the outer wall of the slide bar 13. One end of the spring 15 is fixedly connected to the limit block 14, and the other end of the spring 15 is fixedly connected to the lead screw sleeve 11. The spring 15 provides appropriate elastic force to ensure that the scraper 12 is in close contact with the surface of the filter plate 3, improving the cleaning effect.

[0023] A fixing plate 7 is fixedly connected to the outer wall of the air inlet pipe 2. A blade 6 is rotatably connected to the outer wall of the fixing plate 7. Two sets of transmission wheels 4 are rotatably connected to the outer wall of the air inlet pipe 2. The two sets of transmission wheels 4 are connected by a transmission belt 5. The two sets of transmission wheels 4 are coaxially and fixedly connected to the reciprocating lead screw 8 and the blade 6 respectively. A limit rod 9 is fixedly connected to the inner wall of the air inlet pipe 2. The lead screw sleeve 11 is slidably connected to the outer wall of the limit rod 9. The blade 6 drives the reciprocating lead screw 8 to rotate through the airflow, realizing automatic operation without an additional power source, saving energy.

[0024] When using this device: Start the exhaust fan 1 to make it start running and generate an air flow. The air is inhaled through the air inlet pipe 2. At this time, the inhaled air passes through the filter plate 3, which can block paper fibers and other impurities to prevent them from entering the inside of the exhaust fan 1 and ensure the normal operation of the exhaust fan 1. The air flow drives the blades 6 at the air inlet pipe 2 to rotate. The rotation of the blades 6 drives the reciprocating lead screw 8 to rotate synchronously through the transmission wheel 4 and the transmission belt 5. Furthermore, it drives the lead screw sleeve 11 to slide horizontally, driving the scraper 12 to slide on the surface of the filter plate 3 to clean the paper fibers and impurities accumulated on the filter plate 3 and move them to directly above the material falling groove 10. During the cleaning process, the spring 15 provides appropriate elastic force to ensure that the scraper 12 is in close contact with the surface of the filter plate 3, improving the cleaning effect.

[0025] During the entire cleaning process, the exhaust fan 1 does not need to stop working, ensuring the continuity of the production process.

[0026] As mentioned above, it is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A corrugated roller exhaust device, comprising an exhaust fan (1), characterized in that: The outer wall of the exhaust fan (1) is fixedly connected with an air inlet pipe (2), the air inlet pipe (2) is communicated with the inside of the exhaust fan (1), a filter plate (3) is installed at the inner bottom of the air inlet pipe (2), a reciprocating screw (8) is rotatably connected to the inner wall of the air inlet pipe (2), a screw sleeve (11) is threadedly connected to the threaded section of the reciprocating screw (8), the screw sleeve (11) is connected to a scraper (12) through a connecting mechanism, the scraper (12) is slidably connected to the outer wall of the filter plate (3), a blanking trough (10) is opened at the inner bottom of the air inlet pipe (2), and the scraper (12) is slidably connected just above the blanking trough (10).

2. A corrugated roller exhaust device according to claim 1, characterized in that: The connection mechanism comprises a sliding rod (13) slidably connected to the outer wall of the screw sleeve (11), the end of the sliding rod (13) is fixedly connected to the scraper (12), and the end of the sliding rod (13) is fixedly connected to the limiting block (14).

3. A corrugated roller exhaust device according to claim 2, characterized in that: The outer wall of the slide rod (13) is sleeved with a spring (15), one end of the spring (15) is fixedly connected to the limit block (14), and the other end of the spring (15) is fixedly connected to the screw sleeve (11).

4. A corrugated roller exhaust device according to claim 3, characterized in that: The outer wall of the air inlet pipe (2) is fixedly connected to a fixing plate (7), and the outer wall of the fixing plate (7) is rotatably connected to blades (6).

5. A corrugated roller exhaust device according to claim 4, characterized in that: The outer wall of the air inlet pipe (2) is rotatably connected to two sets of transmission wheels (4), the two sets of transmission wheels (4) are connected via a transmission belt (5), and the two sets of transmission wheels (4) are coaxially fixedly connected to the reciprocating screw (8) and the blade (6), respectively.

6. A corrugated roller exhaust device according to claim 5, characterized in that: The inner wall of the air inlet pipe (2) is fixedly connected to a limit rod (9), and the lead screw sleeve (11) is slidably connected to the outer wall of the limit rod (9).

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