A drying oven

Abstract

This application discloses a drying oven, relating to the field of paper drying technology. The oven includes a main body comprising a drying chamber, two winding rollers, a transmission assembly, a circulation assembly, and a protective assembly. The drying chamber has two openings on both sides along its length, and the openings are arranged along the width of the drying chamber. A first air inlet block is connected inside the drying chamber, located at the upper end of the drying chamber. Two second air inlet blocks are connected inside the drying chamber, located at the lower end of the drying chamber, with the first air inlet block positioned between the two second air inlet blocks. Both winding rollers are located on one side of the drying chamber along its length and are rotatably connected to the drying chamber. The transmission assembly is located on the side of the drying chamber near the winding rollers and is connected to the winding rollers. The circulation assembly is located on both sides of the drying chamber along its width. The protective assembly is located inside the drying chamber, between the first and second air inlet blocks. This application has the effect of improving energy utilization efficiency.

Description

Technical Field

[0001] This application relates to the field of paper drying technology, and in particular to a drying oven. Background Technology

[0002] Currently, in the paper processing industry, as various industries continuously raise their requirements for paper quality and performance, paper drying technology is also constantly developing. High-quality paper drying technology is of great significance for ensuring the physical properties of paper and improving its usability. It not only removes moisture from the paper, preventing it from becoming damp and moldy, but also improves the paper's flatness and strength, enabling it to better meet the needs of industries such as printing and packaging. Among many paper processing techniques, unwinding, drying, and then applying adhesive to adhere the paper to a board is a common process, widely used in furniture manufacturing, decorative materials, and other fields.

[0003] In traditional paper drying operations, various conventional methods are employed to achieve the desired drying effect. One common method involves using large drying chambers, where heating devices raise the temperature of the entire space to dry the paper. Some companies use tunnel drying equipment, where the paper moves slowly on a conveyor belt through a heated area to complete the drying process. Additionally, some manufacturers utilize thermal radiation drying technology, using heat generated by a radiation source to remove moisture from the paper. These methods all achieve the goal of drying paper to a certain extent.

[0004] Regarding the aforementioned technologies, existing drying technologies have a significant drawback: the difficulty in achieving continuous heat recycling. During the drying process, a large amount of heat is emitted into the environment along with the exhaust gas, resulting not only in substantial energy waste but also in increased production costs for enterprises. Summary of the Invention

[0005] In order to improve energy utilization, this application provides a drying oven.

[0006] This application provides a drying oven, which adopts the following technical solution: A drying oven includes a main body, which comprises a drying chamber, two winding reels, a transmission assembly, a circulation assembly, and a protective assembly. The drying chamber has two openings on both sides along its length, and the openings are arranged along the width of the drying chamber. A first air inlet block is connected inside the drying chamber, located at the upper end of the drying chamber and arranged along its width, with its upper end open. Two second air inlet blocks are connected inside the drying chamber, located at the lower end of the drying chamber and arranged along its width, with their lower ends open. The first air inlet block is located between the two second air inlet blocks. Two winding reels are located on one side of the drying chamber along its length and are rotatably connected to it. The two winding reels are arranged vertically and along the width of the drying chamber. The transmission assembly is located on the side of the drying chamber closest to the winding reels and is connected to them. The circulation assembly is located on both sides inside the drying chamber along its width and is used to circulate the hot air inside the drying chamber. The protective assembly is located inside the drying chamber and between the first and second air inlet blocks.

[0007] By adopting the above technical solution, two layers of paper enter the drying chamber through two openings. The paper passes through the protective components and the openings, and is finally wound onto two winding wheels. The winding wheels wind up the paper. Hot air enters the drying chamber through the first and second air inlets to heat the paper inside the drying chamber. During the heating process, the circulation component circulates the hot air inside the drying chamber, so that the hot air is fully circulated and used in the drying chamber, thereby improving the energy utilization rate.

[0008] Optionally, the transmission assembly includes a chain, a drive motor, a sprocket, two rotating rings, and two adjusting components. The rotating rings correspond one-to-one with the winding reel and are sleeved on one side of the winding reel along its length. The adjusting components correspond one-to-one with the rotating rings and are located between the rotating rings and the winding reel. The drive motor is fixedly connected to the side of the drying chamber near the winding reel, and the output shaft of the drive motor is coaxially fixedly connected to the sprocket. The chain passes around the sprocket and the two rotating rings in sequence, and the chain meshes with the rotating rings.

[0009] By adopting the above technical solution, the adjusting component and the winding wheel work together to support the rotating ring, the drying box supports the drive motor, the drive motor drives the sprocket to rotate, when the paper needs to be wound up, the drive motor and the sprocket work together to drive the chain to move, the chain moves during the movement of the chain to drive the rotating ring to rotate, the rotating ring and the adjusting component work together to drive the winding wheel to rotate, thereby winding up the paper, improving the convenience of paper winding.

[0010] Optionally, the adjusting component includes a connecting ring and several fixing bolts. The connecting ring is sleeved on the side of the winding wheel near the chain and is fixedly connected to the winding wheel. The rotating ring is sleeved on the outside of the connecting ring and is slidably connected to the connecting ring along the length of the winding wheel. The fixing bolts pass through the connecting ring and the rotating ring in sequence. The fixing bolts are threadedly connected to the connecting ring and to the rotating ring.

[0011] By adopting the above technical solution, the connecting ring supports the rotating ring. When the two winding wheels are placed on the drying box, since the two rotating rings are not aligned, the operator first moves the rotating rings to make the two rotating rings and the sprockets on the same vertical plane. The fixing bolts are used to connect and fix the relative position of the connecting ring and the rotating ring. The rotating ring and the connecting ring work together to drive the winding wheel to rotate, which improves the convenience of adjusting the position of the rotating ring.

[0012] Optionally, the circulation assembly includes two extraction pipes, two extraction fans, two filters, and two ventilation frames. The two extraction pipes are located at the upper end of the drying chamber and on both sides of the drying chamber along the width direction. Both ends of the extraction pipes along the length direction are connected to the drying chamber. The extraction fans correspond one-to-one with the extraction pipes and are fixedly connected inside the extraction pipes. The ventilation frames correspond one-to-one with the extraction pipes and are fixedly connected inside the drying chamber and on both sides of the drying chamber along the width direction. The ventilation frames face one end of the extraction pipe along the length direction. The filters correspond one-to-one with the ventilation frames and are fixedly connected inside the ventilation frames and adapted to fit the ventilation frames.

[0013] By adopting the above technical solution, when the hot air inside the drying oven comes into contact with the paper, the hot air will diffuse to the sides of the drying oven. The air extractor draws the hot air into the air extraction pipe, and the hot air in the air extraction pipe enters the air venting frame. The filter screen in the air venting frame blocks impurities in the hot air. The hot air is output downward along both sides of the width of the drying oven and re-enters the drying cycle, thus improving the utilization rate of the hot air.

[0014] Optionally, the protective assembly includes a storage basket, several first rotating shafts, and several second rotating shafts. The storage basket is fixedly connected inside the drying chamber and is arranged along the length of the drying chamber. The storage basket is located between the first air inlet block and the second air inlet block. The storage basket has openings on both sides along the length of the drying chamber. There is a gap between the storage basket and the drying chamber on the side near the winding wheel. Several ventilation holes are opened on both sides of the vertical side of the storage basket. The first rotating shafts and the second rotating shafts are both located inside the storage basket and are rotatably connected to the storage basket. The several first rotating shafts and the several second rotating shafts are arranged along the length of the drying chamber and are arranged along the width of the drying chamber. The first rotating shafts are located above the second rotating shafts.

[0015] By adopting the above technical solution, when the paper is dried and conveyed in the drying chamber, both sheets of paper are located in the storage basket. Hot air passes through the vent to dry the paper. The upper sheet of paper is located between the storage basket and the first rotating shaft, and the lower sheet of paper is located between the storage basket and the second rotating shaft. During the drying process of the paper by the hot air, the upper sheet of paper is in contact with the first rotating shaft and is conveyed on the surface of the first rotating shaft, while the lower sheet of paper is in contact with the second rotating shaft and is in contact with the surface of the second rotating shaft. This helps to reduce the probability of paper breakage caused by paper shaking during the paper heating process.

[0016] Optionally, two irons are fixed inside the drying chamber. Both irons are located on the side of the storage basket near the winding wheel and inside the drying chamber. The irons correspond one-to-one with the winding wheel. Both ends of the two irons are fixedly connected to the storage basket along the length direction and are arranged vertically.

[0017] By adopting the above technical solution, the paper will bend and deform as it is conveyed on the first and second rotating shafts. When the paper is dried, the ironing device irons the paper, which helps to improve the flatness of the paper.

[0018] Optionally, two buffer blocks are provided inside the opening. The two buffer blocks are fixedly connected to the drying box, with the curved surfaces of the two buffer blocks facing each other and a gap between them.

[0019] By adopting the above technical solution, when the paper passes through the opening, it is located between two buffer blocks. The buffer blocks cushion the paper's transport, which helps reduce wear between the paper and the drying box and improves the integrity of the paper.

[0020] Optionally, two air blowers are fixedly installed on the side of the drying box near the winding reel. The two air blowers are located on both sides of the drying box along the vertical direction. Several air blowing pipes are connected to the side of the two air blowers that are close to each other. The air blowing pipes are located between the drying box and the winding reel.

[0021] By adopting the above technical solution, when the paper is heated, the air blower blows cold air through the air pipe to cool the paper, which helps to reduce the probability of the paper deforming when cooling on the winding wheel and improves the flatness of the paper in subsequent use.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. Two layers of paper enter the drying chamber through two openings. The paper passes through the protective components and the openings, and is finally wound onto two winding wheels. The winding wheels wind up the paper. Hot air enters the drying chamber through the first and second air inlets to heat the paper inside the drying chamber. During the heating process, the circulation component circulates the hot air inside the drying chamber, so that the hot air is fully circulated and used in the drying chamber, which improves the energy utilization rate. 2. When the hot air inside the drying oven comes into contact with the paper, the hot air will diffuse to the sides of the drying oven. The exhaust fan draws the hot air into the exhaust pipe, and the hot air in the exhaust pipe enters the ventilation frame. The filter screen in the ventilation frame blocks impurities in the hot air. The hot air is output downward along both sides of the width of the drying oven and re-enters the drying cycle, which improves the utilization rate of the hot air. 3. When the paper is being dried and conveyed in the drying chamber, both sheets of paper are located in the storage basket. Hot air passes through the vent to dry the paper. The upper sheet of paper is located between the storage basket and the first rotating shaft, and the lower sheet of paper is located between the storage basket and the second rotating shaft. During the drying process, the upper sheet of paper is in contact with the first rotating shaft and is conveyed on the surface of the first rotating shaft, while the lower sheet of paper is in contact with the second rotating shaft and is in contact with the surface of the second rotating shaft. This helps to reduce the probability of paper breakage caused by paper shaking during the heating process. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a drying oven.

[0024] Figure 2 This is a schematic diagram of the internal structure of the drying oven.

[0025] Figure 3 This is a schematic diagram of the loop component structure.

[0026] Figure 4 This is a schematic diagram of the transmission component structure.

[0027] Explanation of reference numerals in the attached drawings: 1. Drying oven body; 11. Drying box; 12. Rewinding wheel; 13. Inlet; 14. First air inlet block; 15. Second air inlet block; 16. Iron; 17. Buffer block; 18. Air blower; 19. Air blowing pipe; 2. Transmission assembly; 21. Chain; 22. Drive motor; 23. Sprocket; 24. Rotating ring; 25. Adjusting component; 251. Connecting ring; 252. Fixing bolt; 3. Circulation assembly; 31. Extraction pipe; 32. Extractor; 33. Filter screen; 34. Ventilation frame; 4. Protective assembly; 41. Storage basket; 42. First rotating shaft; 43. Second rotating shaft; 44. Ventilation port. Detailed Implementation

[0028] The present application will be further described in detail below with reference to all the accompanying drawings.

[0029] This application discloses a drying oven.

[0030] Reference Figure 1 and Figure 2A drying oven includes a main body 1, which comprises a drying chamber 11, two winding rollers 12, a transmission assembly 2, a circulation assembly 3, and a protective assembly 4. The drying chamber 11 has two openings 13 on both sides along its length and width, through which two layers of paper enter the drying chamber 11. A first air inlet block 14 is connected inside the drying chamber 11, located at the upper end and along its width, with an open upper end. Two second air inlet blocks 15 are connected inside the drying chamber 11, located at the lower end and along its width, with open lower ends. The first air inlet block 14 is positioned between the two second air inlet blocks 15. Hot air enters the drying chamber 11 through the first and second air inlet blocks 14 and 15 to heat the paper inside.

[0031] Reference Figure 1 and Figure 3 The circulation assembly 3 is located on both sides of the drying chamber 11 along its width. The circulation assembly 3 is used to circulate the hot air inside the drying chamber 11. The circulation assembly 3 includes two exhaust pipes 31, two exhaust fans 32, two filters 33, and two ventilation frames 34. The two exhaust pipes 31 are both located at the upper end of the drying chamber 11 and are located on both sides of the drying chamber 11 along its width. Both ends of the exhaust pipes 31 along their length are connected to the drying chamber 11. The exhaust fans 32 correspond one-to-one with the exhaust pipes 31 and are fixedly connected inside the exhaust pipes 31. When the hot air inside the drying chamber 11 comes into contact with the paper, the hot air will diffuse to the surrounding area of ​​the drying chamber 11, and the exhaust fans 32 will draw the hot air into the exhaust pipes 31.

[0032] Reference Figure 3 The ventilation frame 34 corresponds to the exhaust pipe 31. Both ventilation frames 34 are fixedly connected inside the drying chamber 11 and are located on both sides of the drying chamber 11 along the width direction. The ventilation frame 34 and the exhaust pipe 31 are directly opposite each other along the length direction. The filter screen 33 corresponds to the ventilation frame 34 and is fixedly connected inside the ventilation frame 34 and is adapted to the ventilation frame 34. The hot air in the exhaust pipe 31 enters the ventilation frame 34. The filter screen 33 in the ventilation frame 34 blocks impurities in the hot air. The hot air is output downward along both sides of the drying chamber 11 along the width direction and re-participates in the drying cycle, which improves the utilization rate of the hot air.

[0033] Reference Figure 2The protective component 4 is located inside the drying chamber 11, between the first air inlet block 14 and the second air inlet block 15. When the paper is dried inside the drying chamber 11, the paper is located inside the protective component 4. The protective component 4 includes a storage basket 41, multiple first rotating shafts 42 and multiple second rotating shafts 43. The storage basket 41 is fixedly connected to the inside of the drying chamber 11 and is arranged along the length of the drying chamber 11. The storage basket 41 is located between the first air inlet block 14 and the second air inlet block 15. The storage basket 41 has openings on both sides along the length of the drying chamber 11. Multiple ventilation holes 44 are opened on both sides of the storage basket 41 along the vertical direction. When the paper is dried and conveyed in the drying chamber 11, both sheets of paper are located inside the storage basket 41, and hot air passes through the ventilation holes 44 to dry the paper.

[0034] Reference Figure 3 The first rotating shaft 42 and the second rotating shaft 43 are both located inside the storage basket 41 and are rotatably connected to the storage basket 41. The multiple first rotating shafts 42 and the multiple second rotating shafts 43 are arranged along the length direction of the drying box 11 and set along the width direction of the drying box 11. The first rotating shaft 42 is located above the second rotating shaft 43. The paper above is located between the storage basket 41 and the first rotating shaft 42, and the paper below is located between the storage basket 41 and the second rotating shaft 43. During the hot air drying process, the paper above is in contact with the first rotating shaft 42 and is conveyed on the surface of the first rotating shaft 42, and the paper below is in contact with the second rotating shaft 43 and is in contact with the surface of the second rotating shaft 43. This helps to reduce the probability of paper breakage caused by paper shaking during the paper heating process.

[0035] Reference Figure 1 Both take-up rollers 12 are located on one side of the drying chamber 11 along its length and are rotatably connected to the drying chamber 11. The two take-up rollers 12 are arranged vertically and set along the width direction of the drying chamber 11. The paper passes through the protective component 4 and the opening 13, and is finally wound onto the two take-up rollers 12 respectively. The take-up rollers 12 wind up the paper. The transmission component 2 is located on the side of the drying chamber 11 near the take-up rollers 12 and is connected to the take-up rollers 12. The transmission component 2 drives the two take-up rollers 12 to rotate.

[0036] Reference Figure 4The transmission assembly 2 includes a chain 21, a drive motor 22, a sprocket 23, two rotating rings 24, and two adjusting members 25. The rotating rings 24 correspond one-to-one with the winding reel 12 and are sleeved on one side of the winding reel 12 along its length. The adjusting members 25 correspond one-to-one with the rotating rings 24 and are located between the rotating rings 24 and the winding reel 12. The adjusting members 25 are used to connect the winding reel 12 and the rotating rings 24. The drive motor 22 is fixedly connected to the side of the drying chamber 11 near the take-up wheel 12. The output shaft of the drive motor 22 is coaxially fixedly connected to the sprocket 23. The chain 21 passes around the sprocket 23 and two rotating rings 24 in sequence. The chain 21 meshes with the rotating rings 24. The drying chamber 11 supports the drive motor 22. The drive motor 22 drives the sprocket 23 to rotate. When it is necessary to rewind the paper, the drive motor 22 and the sprocket 23 work together to drive the chain 21 to move. During the movement of the chain 21, the rotating rings 24 rotate. The rotating rings 24 and the adjusting component 25 work together to drive the take-up wheel 12 to rotate, thereby rewinding the paper and improving the convenience of paper rewinding.

[0037] Reference Figure 4 The adjusting component 25 includes a connecting ring 251 and multiple fixing bolts 252. The connecting ring 251 is sleeved on the side of the take-up reel 12 near the chain 21 and is fixedly connected to the take-up reel 12. The rotating ring 24 is sleeved on the outside of the connecting ring 251 and is slidably connected to the connecting ring 251 along the length of the take-up reel 12. The fixing bolts 252 pass through the connecting ring 251 and the rotating ring 24 in sequence. The fixing bolts 252 are threadedly connected to the connecting ring 251 and the rotating ring 24. The connecting ring 251 supports the rotating ring 24. When the two take-up reels 12 are placed on the drying box 11, since the two rotating rings 24 are not aligned, the operator first moves the rotating rings 24 so that the two rotating rings 24 and the sprocket 23 are in the same vertical plane. The fixing bolts 252 are used to connect and fix the relative positional relationship between the connecting ring 251 and the rotating ring 24. The rotating ring 24 and the connecting ring 251 cooperate to drive the take-up reel 12 to rotate.

[0038] Reference Figure 2 Two irons 16 are fixedly installed inside the drying chamber 11. Both irons 16 are located on the side of the storage basket 41 near the winding wheel 12 and inside the drying chamber 11. The irons 16 correspond one-to-one with the winding wheel 12. Both ends of the two irons 16 are fixedly connected to the storage basket 41 along the length direction and are arranged vertically. Since the paper is conveyed on the first rotating shaft 42 and the second rotating shaft 43, the paper will bend and deform. When the paper is dried, the irons 16 iron the paper, which helps to improve the flatness of the paper.

[0039] Reference Figure 2Two buffer blocks 17 are provided inside the opening 13. The two buffer blocks 17 are fixedly connected to the drying box 11. The curved surfaces of the two buffer blocks 17 face each other, and there is a gap between the two buffer blocks 17. When the paper passes through the opening 13, the paper is located between the two buffer blocks 17. The buffer blocks 17 buffer the paper transport, which helps to reduce the wear between the paper and the drying box 11.

[0040] Reference Figure 2 Two air blowers 18 are fixedly installed on the side of the drying chamber 11 near the winding wheel 12. The two air blowers 18 are located on both sides of the drying chamber 11 along the vertical direction. Multiple air blowing pipes 19 are connected to the side of the two air blowers 18 that are close to each other. The air blowing pipes 19 are located between the drying chamber 11 and the winding wheel 12. When the paper is heated, the air blowers 18 blow cold air out through the air blowing pipes 19. The cold air cools the paper, which helps to reduce the probability of the paper deforming when cooling on the winding wheel 12 and improves the flatness of the paper in subsequent use.

[0041] The implementation principle of a drying oven in this application embodiment is as follows: When paper is dried and conveyed in the drying chamber 11, both sheets of paper are located in the storage basket 41. Hot air passes through the vent 44 to dry the paper. The upper sheet of paper is located between the storage basket 41 and the first rotating shaft 42, and the lower sheet of paper is located between the storage basket 41 and the second rotating shaft 43. During the drying process, the upper sheet of paper is in contact with the first rotating shaft 42 and is conveyed on the surface of the first rotating shaft 42, while the lower sheet of paper is in contact with the second rotating shaft 43 and is in contact with the surface of the second rotating shaft 43. When the hot air inside the drying chamber 11 comes into contact with the paper, the hot air will diffuse to the surrounding area of ​​the drying chamber 11. The exhaust fan 32 draws the hot air into the exhaust pipe 31, and the hot air in the exhaust pipe 31 enters the vent frame 34. The filter screen 33 in the vent frame 34 blocks impurities in the hot air. The hot air is output downward along both sides of the width direction of the drying chamber 11 and re-participates in the drying cycle, thereby improving the energy utilization rate.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A drying oven comprising a drying oven main body (1), characterized in that: The main body (1) of the drying oven includes a drying box (11), two winding wheels (12), a transmission assembly (2), a circulation assembly (3), and a protective assembly (4). The drying box (11) has two openings (13) on both sides along its length. The openings (13) are arranged along the width of the drying box (11). A first air inlet block (14) is connected inside the drying box (11). The first air inlet block (14) is located at the upper end of the drying box (11) and is arranged along the width of the drying box (11). The upper end of the first air inlet block (14) is open. Two second air inlet blocks (15) are connected inside the drying box (11). The second air inlet blocks (15) are located at the lower end of the drying box (11) and are arranged along the width of the drying box (11). (15) The lower end is open. The first air inlet block (14) is located between the two second air inlet blocks (15). The two take-up wheels (12) are located on one side of the drying box (11) along the length direction and are rotatably connected to the drying box (11). The two take-up wheels (12) are arranged vertically and are set along the width direction of the drying box (11). The transmission component (2) is located on the side of the drying box (11) near the take-up wheel (12) and is connected to the take-up wheel (12). The circulation component (3) is located on both sides of the drying box (11) along the width direction. The circulation component (3) is used to circulate the hot air inside the drying box (11). The protective component (4) is located inside the drying box (11) and between the first air inlet block (14) and the second air inlet block (15).

2. A drying oven according to claim 1, characterised in that: The transmission assembly (2) includes a chain (21), a drive motor (22), a sprocket (23), two rotating rings (24) and two adjusting members (25). The rotating rings (24) correspond one-to-one with the winding wheel (12) and are sleeved on one side of the winding wheel (12) along the length direction. The adjusting members (25) correspond one-to-one with the rotating rings (24) and are located between the rotating rings (24) and the winding wheel (12). The drive motor (22) is fixedly connected to the side of the drying box (11) near the winding wheel (12). The output shaft of the drive motor (22) is coaxially fixedly connected to the sprocket (23). The chain (21) passes around the sprocket (23) and the two rotating rings (24) in sequence, and the chain (21) meshes with the rotating rings (24).

3. A drying oven according to claim 2, characterised in that: The adjusting component (25) includes a connecting ring (251) and several fixing bolts (252). The connecting ring (251) is sleeved on the side of the winding wheel (12) near the chain (21) and is fixedly connected to the winding wheel (12). The rotating ring (24) is sleeved on the outside of the connecting ring (251) and is slidably connected to the connecting ring (251) along the length direction of the winding wheel (12). The fixing bolts (252) pass through the connecting ring (251) and the rotating ring (24) in sequence. The fixing bolts (252) are threadedly connected to the connecting ring (251) and to the rotating ring (24).

4. A drying oven according to claim 1, characterised in that: The circulation assembly (3) includes two suction pipes (31), two suction pumps (32), two filters (33), and two ventilation frames (34). The two suction pipes (31) are located at the upper end of the drying chamber (11), respectively on both sides of the drying chamber (11) along its width. Both ends of the suction pipes (31) along their length are connected to the drying chamber (11). Each suction pump (32) corresponds to one suction pipe (31) and is fixedly connected to the [missing information - likely a specific component or component]. Inside the exhaust pipe (31), the ventilation frame (34) corresponds to the exhaust pipe (31) one by one. Both ventilation frames (34) are fixedly connected inside the drying box (11) and are located on both sides of the drying box (11) along the width direction. The ventilation frame (34) and one end of the exhaust pipe (31) along the length direction are directly opposite each other. The filter screen (33) corresponds to the ventilation frame (34) one by one. The filter screen (33) is fixedly connected inside the ventilation frame (34) and is adapted to the ventilation frame (34).

5. A drying oven according to claim 1, characterized in that: The protective component (4) includes a storage basket (41), several first rotating shafts (42) and several second rotating shafts (43). The storage basket (41) is fixedly connected to the inside of the drying box (11) and is arranged along the length of the drying box (11). The storage basket (41) is located between the first air inlet block (14) and the second air inlet block (15). The storage basket (41) is designed with openings on both sides along the length of the drying box (11). The storage basket (41) and the drying box (11) are close to the winding wheel. (12) has a gap on one side. The storage basket (41) has several ventilation holes (44) on both sides along the vertical direction. The first rotating shaft (42) and the second rotating shaft (43) are both located inside the storage basket (41) and are rotatably connected to the storage basket (41). The first rotating shaft (42) and the second rotating shaft (43) are arranged along the length direction of the drying box (11) and set along the width direction of the drying box (11). The first rotating shaft (42) is located above the second rotating shaft (43).

6. A drying oven according to claim 5, characterised in that: The drying box (11) is equipped with two irons (16). Both irons (16) are located on the side of the storage basket (41) near the winding wheel (12) and inside the drying box (11). The irons (16) correspond one-to-one with the winding wheel (12). Both ends of the two irons (16) along the length direction are fixedly connected to the storage basket (41) and arranged vertically.

7. A drying oven according to claim 1, characterized in that: The opening (13) is provided with two buffer blocks (17), which are fixedly connected to the drying box (11). The curved surfaces of the two buffer blocks (17) face each other, and there is a gap between the two buffer blocks (17).

8. A drying oven according to claim 1, characterized in that: Two blowers (18) are fixed on one side of the drying box (11) near the winding reel (12). The two blowers (18) are located on both sides of the drying box (11) along the vertical direction. Several blowers (19) are connected to the side of the two blowers (18) that are close to each other. The blowers (19) are located between the drying box (11) and the winding reel (12).

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