A closed hood device for a papermaking machine

Abstract

The utility model discloses a kind of papermaking machinery closed air cover devices, including cover body, the outer surface of both sides of cover body is fixed with lateral frame, the inner wall of lateral frame is all installed with cover plate, rectangular frame is fixedly installed on the outer wall of cover plate and the lower end of cover body, the outer wall of lateral frame is installed with several locking bolts, one end of locking bolt is penetrated through lateral frame and is connected with the outer wall of cover plate with screw thread, the upper end of cover body inside is installed with fan, one end of fan is installed with gas outlet, gas outlet is extended to the outside of cover body away from fan, the inner wall of both sides of gas outlet is equipped with shaft seat, the inner gas outlet of one end of two shaft seats is rotatably installed with semicircular baffle.

Description

Technical Field

[0001] This utility model relates to the field of papermaking equipment technology, specifically to a sealed air hood device for papermaking machinery. Background Technology

[0002] The airtight hood for papermaking machinery is a key piece of equipment in the drying section of a papermaking machine. It is used to enclose the drying cylinder group and its surrounding area to form a relatively closed process space, so as to achieve high efficiency, energy saving and environmental protection in the papermaking process. In order to ensure the performance of the airtight hood, the development of an airtight hood device for papermaking machinery is of great practical significance.

[0003] A papermaking ventilation hood, referenced in publication number CN223292861U, includes a supporting base plate. A base pad is threadedly fixed to the bottom surface of the supporting base plate. A sealing hood is fastened to the top surface of the supporting base plate. Adjusting cylinders are uniformly fixed to the top surface of the sealing hood. A control panel is fixedly snapped to the side of the supporting base plate. Side passage grooves are symmetrically formed on both sides of the sealing hood. Ventilation ducts are horizontally inserted into one side of the supporting base plate and the sealing hood. A duct groove is horizontally formed on the top surface of the supporting base plate. A support mesh plate is horizontally snapped onto the inner top surface of the base plate, and a sealing groove is opened on the top surface of the support base plate. A control main board is fixedly snapped onto the inner wall of the control panel. The adoption of an electric overall flip-open structure makes loading and unloading more convenient. At the same time, the adjustable spacing structure can meet various ventilation requirements. As can be seen from the above, although this airtight hood can be used well, it is usually not convenient to automatically close the exhaust port area, which makes it easy for external particulate matter to flow into the hood and cause corrosion. Further improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a closed air hood device for papermaking machinery, so as to solve the problem mentioned in the background art that although the closed air hood can be applied well, it is usually not convenient to automatically close the exhaust port area, which makes it easy for external particulate matter to flow into the hood and cause erosion.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealed air hood device for papermaking machinery, comprising a hood body, with lateral frame edges fixed on both outer surfaces of the hood body, and cover plates installed on the inner walls of the lateral frame edges. Rectangular frame edges are fixedly installed on the cover plates and the outer walls of the lower end of the hood body. Several locking bolts are installed on the outer walls of the lateral frame edges, with one end of each locking bolt penetrating the lateral frame edge and threadedly connected to the outer wall of the cover plate. A fan is installed at the upper end of the hood body, with an air outlet at one end of the fan. The end of the air outlet away from the fan extends to the outside of the hood body. Shaft seats are provided on the inner walls of both sides of the air outlet, and semi-circular baffles are rotatably installed inside the air outlets at one end of the two shaft seats.

[0006] Preferably, air inlets are provided on both inner walls at the lower end of the cover, with one end of the air inlet extending to the outside of the cover, so that outside air can flow into the interior of the cover.

[0007] Preferably, two second waist-shaped holes are provided on the outer wall of the cover above the air inlet, and a first waist-shaped hole is provided on the outer wall of the cover above the second waist-shaped holes. The arrangement of the second waist-shaped holes and the first waist-shaped holes allows the movement range of the L-shaped baffle to be limited by the screw and the connecting bracket.

[0008] Preferably, an L-shaped baffle is installed on the outer wall of the cover below the second waist-shaped hole. The inner wall of the L-shaped baffle contacts the outer wall of the cover. The L-shaped baffle is used to block and close the air inlet.

[0009] Preferably, the outer wall of the L-shaped baffle is provided with two connecting brackets. The end of the connecting bracket away from the L-shaped baffle passes through the second waist-shaped hole and is provided with a concave plate. The connecting brackets are provided to connect the concave plate and the L-shaped baffle.

[0010] Preferably, a screw is installed on the outer wall of the cover at the position of the first waist-shaped hole. One end of the screw passes through the first waist-shaped hole and the concave plate in sequence and is threaded with a nut. The nut is used to limit the screw to be placed inside the first waist-shaped hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the papermaking machinery airtight hood device not only reduces the phenomenon of particulate matter flowing into the interior of the hood through the air outlet and causing erosion, but also improves the convenience of using the airtight hood, and achieves the purpose of easy disassembly and maintenance of the airtight hood.

[0012] (1) Two semi-circular baffles are rotatably installed on the inside of the air outlet through two bearings. When the fan is started to blow the air inside the hood to the outside environment through the air outlet, the wind energy pushes one end of the semi-circular baffle upward, so that the semi-circular baffle rotates upward on the outer wall of the bearing, so that the air outlet is in an open and closed state, which meets the ventilation requirements of the airtight hood. When the fan stops running, the semi-circular baffle automatically rotates downward and overlaps the annular frame on the inner wall of the air outlet to close the air outlet, thereby reducing the phenomenon of particulate matter flowing into the interior of the hood through the air outlet and causing corrosion.

[0013] (2) By sliding the L-shaped baffle up and down, the L-shaped baffle moves up and down through the connecting frame and drives the concave plate to slide, so that the concave plate drives the screw to slide inside the first waist-shaped hole and the connecting frame slides inside the second waist-shaped hole. This limits the movement of the L-shaped baffle, thereby enabling the air inlet to be opened and closed in a sliding manner, which improves the convenience of using the airtight hood.

[0014] (3) By tightening the locking bolt, one end of the locking bolt is screwed out to the outside of the cover plate, and the cover plate can be pulled down to remove it from both sides of the cover body. Then, by tightening the locking bolt, one end of the locking bolt is passed through the side frame and screwed into the outer wall of the cover plate, so that the cover plate can be installed on the outer surface of both sides of the cover body, thereby achieving the purpose of easy disassembly and maintenance of the sealed air cover. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the cover structure of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Cover body; 2. Cover plate; 3. Rectangular frame; 4. Side frame; 5. Locking bolt; 6. Air outlet; 7. Shaft seat; 8. Semi-circular baffle; 9. First oblong hole; 10. Second oblong hole; 11. Connecting frame; 12. L-shaped baffle; 13. Screw pin; 14. Fan; 15. Air inlet; 16. Nut; 17. Concave plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-4 An embodiment of this utility model is provided: a papermaking machinery airtight hood device, including a hood body 1, with air inlets 15 on both inner walls at the lower end of the hood body 1, and one end of the air inlet 15 extending to the outside of the hood body 1.

[0022] When in use, the air inlet 15 is provided to allow outside air to flow into the interior of the cover 1;

[0023] Two second waist-shaped holes 10 are provided on the outer wall of the cover 1 above the air inlet 15, and a first waist-shaped hole 9 is provided on the outer wall of the cover 1 above the second waist-shaped holes 10.

[0024] In use, the second waist-shaped hole 10 and the first waist-shaped hole 9 are set so that the movement range of the L-shaped baffle 12 can be limited by the screw pin 13 and the connecting bracket 11;

[0025] An L-shaped baffle 12 is installed on the outer wall of the cover 1 below the second waist-shaped hole 10, and the inner wall of the L-shaped baffle 12 touches the outer wall of the cover 1.

[0026] In use, the L-shaped baffle 12 is set to block and close the air inlet 15;

[0027] Two connecting brackets 11 are provided on the outer wall of the L-shaped baffle 12. The end of the connecting bracket 11 away from the L-shaped baffle 12 passes through the second waist-shaped hole 10 and is provided with a concave plate 17.

[0028] In use, the connecting bracket 11 is provided to connect the concave plate 17 and the L-shaped baffle 12.

[0029] A screw pin 13 is installed on the outer wall of the cover 1 at the position of the first waist-shaped hole 9. One end of the screw pin 13 passes through the first waist-shaped hole 9 and the concave plate 17 in sequence and is threaded with a nut 16.

[0030] In use, the nut 16 is used to limit the screw pin 13 to be placed inside the first oblong hole 9;

[0031] Side frames 4 are fixed on the outer surfaces of both sides of the cover 1. Cover plates 2 are installed on the inner walls of the side frames 4. Rectangular frames 3 are fixed on the outer walls of the lower end of the cover 1 and the cover plates 2. Several locking bolts 5 are installed on the outer walls of the side frames 4. One end of the locking bolts 5 passes through the side frames 4 and is threaded to the outer wall of the cover plates 2. A fan 14 is installed at the upper end inside the cover 1. An air outlet 6 is installed at one end of the fan 14. The end of the air outlet 6 away from the fan 14 extends to the outside of the cover 1. Bearing seats 7 are provided on the inner walls of both sides of the air outlet 6. Semi-circular baffles 8 are rotatably installed inside the air outlet 6 at one end of the two bearing seats 7.

[0032] In this embodiment, the L-shaped baffle 12 is first slid up and down, causing it to move up and down via the connecting frame 11 and the concave plate 17. This allows the concave plate 17 to slide the screw pin 13 inside the first oblong hole 9 and the connecting frame 11 to slide inside the second oblong hole 10, thus limiting the movement of the L-shaped baffle 12 and enabling the air inlet 15 to slide open and close. Then, two semi-circular baffles 8 are rotatably mounted inside the air outlet 6 via two bearings 7. When the fan 14 is started to blow the air inside the shroud 1 to the outside environment through the air outlet 6, the wind pushes one end of the semi-circular baffle 8 upwards, causing the semi-circular baffle 8 to slide upwards. The baffle 8 rotates upward on the outer wall of the bearing seat 7 to open or close the outlet 6, thus meeting the ventilation requirements of the sealed air hood. When the fan 14 stops running, the semi-circular baffle 8 automatically rotates downward and overlaps the annular frame on the inner wall of the outlet 6 to close the outlet 6. Finally, by tightening the locking bolt 5, one end of the locking bolt 5 is screwed out to the outside of the cover plate 2, and the cover plate 2 can be pulled down to remove it from both sides of the cover body 1. Then, by tightening the locking bolt 5, one end of the locking bolt 5 passes through the side frame 4 and is screwed into the outer wall of the cover plate 2, so that the cover plate 2 can be installed on the outer surfaces of both sides of the cover body 1, making it easy to disassemble and maintain the sealed air hood, thus completing the use of the sealed air hood.

Claims

1. A sealed air hood device for papermaking machinery, characterized in that: The enclosure includes a cover (1), on which side outer surfaces are fixedly fitted with side frames (4), and on which cover plates (2) are installed on the inner walls of the side frames (4). Rectangular frames (3) are fixedly fitted on the outer walls of the lower end of the cover plates (2) and the cover (1). Several locking bolts (5) are installed on the outer walls of the side frames (4). One end of the locking bolts (5) passes through the side frames (4) and is threadedly connected to the outer wall of the cover plates (2). A fan (14) is installed at the upper end inside the cover (1). An air outlet (6) is installed at one end of the fan (14). The end of the air outlet (6) away from the fan (14) extends to the outside of the cover (1). A bearing seat (7) is provided on the inner walls of both sides of the air outlet (6). A semi-circular baffle (8) is rotatably installed inside the air outlet (6) at one end of the two bearing seats (7).

2. The airtight hood device for papermaking machinery according to claim 1, characterized in that: Air inlets (15) are provided on both sides of the lower end of the cover (1), and one end of the air inlet (15) extends to the outside of the cover (1).

3. The airtight hood device for papermaking machinery according to claim 2, characterized in that: Two second waist-shaped holes (10) are provided on the outer wall of the cover (1) above the air inlet (15), and a first waist-shaped hole (9) is provided on the outer wall of the cover (1) above the second waist-shaped hole (10).

4. The airtight hood device for papermaking machinery according to claim 3, characterized in that: An L-shaped baffle (12) is installed on the outer wall of the cover (1) below the second waist-shaped hole (10), and the inner wall of the L-shaped baffle (12) touches the outer wall of the cover (1).

5. The airtight hood device for papermaking machinery according to claim 4, characterized in that: Two connecting brackets (11) are provided on the outer wall of the L-shaped baffle (12). The end of the connecting bracket (11) away from the L-shaped baffle (12) passes through the second waist-shaped hole (10) and is provided with a concave plate (17).

6. The airtight hood device for papermaking machinery according to claim 5, characterized in that: A screw (13) is installed on the outer wall of the cover (1) at the position of the first waist-shaped hole (9). One end of the screw (13) passes through the first waist-shaped hole (9) and the concave plate (17) in sequence and is threaded with a nut (16).

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