Paper towel drying box airflow guidance structure

Abstract

This utility model discloses an airflow guiding structure for a tissue drying box, including a conveyor frame. Several support shafts are installed through the top of the inner wall of the conveyor frame. A variable frequency drive motor is installed on the right side of the rear side of the conveyor frame. A redirecting roller is fixedly sleeved on the outer side of the leftmost support shaft, and a drive roller is fixedly sleeved on the outer side of the rightmost support shaft. This utility model, through the coordinated use of the drying box, air guiding components, positioning holes, and rotating holes, has the advantage of changing the direction of hot air flow. When changing the angle of the air guide plate, pulling the connecting plate backward causes the stop block and positioning rod to move backward. During this process, the return spring is stretched, ultimately causing the positioning rod to disengage from the positioning hole. At this point, rotating the connecting plate drives the rotating shaft to rotate via the stop block, positioning rod, and bearing block, thereby changing the angle of the air guide plate. By adjusting the angle of the air guide plate at different positions, hot air can evenly cover the surface of the tissue, solving the problem of insufficient or excessive drying in certain areas.

Description

Technical Field

[0001] This utility model relates to the field of paper towel drying technology, specifically to an airflow guiding structure for a paper towel drying box. Background Technology

[0002] Paper towels, generally referring to thin and soft paper products used for wiping, absorbing, or cleaning, are everyday necessities. Paper towels are composed of chlorine, bleach, alcohol, wood pulp, and renewable resources. There are many types of paper towels, including facial tissues, kitchen paper towels, napkins, and toilet paper.

[0003] During the production process, paper towels need to be dried in a drying oven. However, existing drying ovens have a constant hot airflow direction, which can easily lead to dead zones in the drying process, resulting in either insufficient drying or over-drying in certain areas. To solve these technical problems, we designed an airflow guiding structure for the paper towel drying oven. Utility Model Content

[0004] The purpose of this utility model is to provide an airflow guiding structure for a paper towel drying box, which has the advantage of changing the direction of hot air flow. This solves the problem that the hot air flow direction inside the drying box is constant, which makes it easy for dead corners to appear during the drying of paper towels, resulting in insufficient drying or over-drying in some areas.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an airflow guiding structure for a paper towel drying box, including a conveyor frame. Several support shafts are installed through the top of the inner wall of the conveyor frame. A variable frequency drive motor is installed on the right side of the rear side of the conveyor frame. A redirecting roller is fixedly sleeved on the outside of the leftmost support shaft, and a drive roller is fixedly sleeved on the outside of the rightmost support shaft. Support rollers are fixedly sleeved on the outside of the other support shafts. A conveyor belt is fitted around the outside of the redirecting roller, the drive roller, and the several support rollers. The output end of the variable frequency drive motor is connected to the rightmost support shaft. Support plates are connected to the top of both the front and rear sides of the conveyor frame. A drying box is connected to the top of the two support plates. Several air guiding components are installed inside the drying box.

[0006] Preferably, the redirecting roller, drive roller, and support roller have the same outer diameter, a support frame is installed at the bottom of the conveyor frame, and a control panel is embedded on the right side of the front side of the conveyor frame.

[0007] Preferably, the top of both the front and rear sides of the inner wall of the conveyor frame is provided with a rotating hole, and both the front and rear sides of the support shaft extend to the inner wall of the rotating hole and are movably connected to the inner wall of the rotating hole through a bearing.

[0008] Preferably, the front side of the drying oven is inlaid with a transparent tempered glass plate, the top of the drying oven is connected to an air inlet hood, the top of the air inlet hood is connected to a hot air inlet pipe, and the side of the hot air inlet pipe away from the air inlet hood is connected to an external hot air delivery pipe through a flange.

[0009] Preferably, the air guide component includes a rotating shaft located at the top of the inner wall of the drying chamber, the rear side of the rotating shaft passing through the drying chamber and connected to a rotating disc, a rotating sleeve fixedly fitted on the outside of the rotating shaft and located on the inner wall of the drying chamber, and an air guide plate connected to the bottom of the rotating sleeve.

[0010] Preferably, the top of the front and rear sides of the inner wall of the drying box is provided with a rotating hole, the inner wall of the rotating hole is movably connected to the outside of the rotating shaft through a bearing, the rotating hole on the rear side penetrates the drying box, the left and right sides of the outside of the rotating disk are connected with a bearing block, and a number of positioning holes are provided on the rear side of the drying box outside the rotating hole.

[0011] Preferably, a positioning rod is provided on the rear side of the bearing block, the front side of the positioning rod passes through the bearing block and extends into the interior of the positioning hole, a stop is connected to the rear side of the positioning rod, a return spring is provided between the front side of the stop and the rear side of the bearing block, and a connecting plate is connected between the two stops.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention utilizes a drying chamber, air guide components, positioning holes, and rotating holes in combination to change the direction of hot air flow. When changing the angle of the air guide plate, pulling the connecting plate backward causes the stop block and positioning rod to move backward. During this process, the return spring is stretched, eventually causing the positioning rod to disengage from the positioning hole. At this point, rotating the connecting plate will drive the rotating shaft to rotate through the stop block, positioning rod, and bearing block, thereby changing the angle of the air guide plate. By adjusting the angle of the air guide plate at different positions, hot air can be evenly covered on the surface of the paper towel, solving the problem of insufficient or excessive drying in certain areas. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Top view;

[0016] Figure 3 This is a top view of the drying box structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the conveyor belt structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the air guide component of this utility model;

[0019] Figure 6 This utility model Figure 5 Top view.

[0020] In the diagram: 1. Support frame; 2. Conveyor frame; 3. Transparent tempered glass plate; 4. Support plate; 5. Control panel; 6. Variable frequency drive motor; 7. Conveyor belt; 8. Drying oven; 9. Air inlet hood; 10. Hot air inlet pipe; 11. Air guide component; 111. Rotating shaft; 112. Rotating sleeve; 113. Air guide plate; 114. Positioning rod; 115. Rotating disk; 116. Bearing block; 117. Connecting plate; 118. Stop block; 119. Return spring; 12. Positioning hole; 13. Rotating hole; 14. Redirecting roller; 15. Support roller; 16. Support shaft; 17. Drive roller. Detailed Implementation

[0021] Please see Figures 1-6 The paper towel drying box airflow guiding structure includes a conveyor frame 2. Several support shafts 16 are installed through the top of the inner wall of the conveyor frame 2. A variable frequency drive motor 6 is installed on the right side of the rear side of the conveyor frame 2. A deflector roller 14 is fixedly sleeved on the outside of the leftmost support shaft 16. A drive roller 17 is fixedly sleeved on the outside of the rightmost support shaft 16. Support rollers 15 are fixedly sleeved on the outside of the other support shafts 16. A conveyor belt 7 is installed on the outside of the deflector roller 14, drive roller 17 and several support rollers 15. The output end of the variable frequency drive motor 6 is connected to the rightmost support shaft 16. Support plates 4 are connected to the top of both the front and rear sides of the conveyor frame 2. The top of the two support plates 4 are connected to the drying box 8. Several air guiding components 11 are installed inside the drying box 8.

[0022] The outer diameters of the redirecting roller 14, the drive roller 17, and the support roller 15 are the same. A support frame 1 is installed at the bottom of the conveyor frame 2, and a control panel 5 is embedded on the right side of the front side of the conveyor frame 2. The support frame 1 can be used to support the conveyor frame 2, and the control panel 5 can be used to control each electrical component.

[0023] Rotation holes are provided on the top of both the front and rear sides of the inner wall of the conveyor frame 2. The front and rear sides of the support shaft 16 extend to the inner wall of the rotation hole and are movably connected to the inner wall of the rotation hole through bearings. The rotation holes can support the support shaft 16 and facilitate its rotation.

[0024] A transparent tempered glass plate 3 is embedded through the front side of the drying oven 8. An air inlet hood 9 is connected to the top of the drying oven 8. A hot air inlet pipe 10 is connected to the top of the air inlet hood 9. The side of the hot air inlet pipe 10 away from the air inlet hood 9 is connected to the hot air delivery pipe of the outside through a flange. The transparent tempered glass plate 3 makes it easy to observe the inside of the drying oven 8.

[0025] The air guide component 11 includes a rotating shaft 111, which is located at the top of the inner wall of the drying chamber 8. The rear side of the rotating shaft 111 passes through the drying chamber 8 and is connected to a rotating disk 115. A rotating sleeve 112 is fixedly sleeved on the outside of the rotating shaft 111 and on the inner wall of the drying chamber 8. An air guide plate 113 is connected to the bottom of the rotating sleeve 112. The air guide plate 113 can be rotated by the rotating sleeve 112 when the rotating shaft 111 rotates.

[0026] Rotating holes 13 are provided on the top of the front and rear sides of the inner wall of the drying oven 8. The inner wall of the rotating hole 13 is movably connected to the outside of the rotating shaft 111 through the bearing. The rotating hole 13 on the rear side penetrates through the drying oven 8. Bearing blocks 116 are connected to the left and right sides of the outside of the rotating disk 115. Several positioning holes 12 are provided on the rear side of the drying oven 8 and outside the rotating hole 13. The rotating hole 13 can provide support for the rotating shaft 111.

[0027] A positioning rod 114 is provided on the rear side of the support block 116. The front side of the positioning rod 114 passes through the support block 116 and extends into the interior of the positioning hole 12. A stop block 118 is connected to the rear side of the positioning rod 114. A return spring 119 is provided between the front side of the stop block 118 and the rear side of the support block 116. A connecting plate 117 is connected between the two stops 118. A moving hole for cooperating with the positioning rod 114 is provided through the support block 116. The two stops 118 can be connected by the connecting plate 117. The front side of the return spring 119 is connected to the support block 116, and the rear side of the return spring 119 is connected to the stop block 118. The return spring 119 is sleeved on the outside of the positioning rod 114.

[0028] In use, the hot air inlet pipe 10 is connected to an external hot air delivery pipe. Hot air enters the air inlet hood 9 through the hot air inlet pipe 10, and then enters the drying chamber 8. During the flow of hot air in the drying chamber 8, it is guided by the air guide plate 113, thereby changing the direction of the hot air flow. When it is necessary to change the angle of the air guide plate 113, the connecting plate 117 is pulled backward. The connecting plate 117 drives the stop block 118 and the positioning rod 114 to move backward. During this process, the reset spring 119 is stretched, which eventually causes the positioning rod 114 to disengage from the positioning hole 12. At this time, rotating the connecting plate 117 will allow the air to pass through. The stop block 118, positioning rod 114, and bearing block 116 drive the rotating shaft 111 to rotate, thereby changing the angle of the air guide plate 113. By adjusting the angle of the air guide plate 113 at different positions, hot air can evenly cover the surface of the paper towel, solving the problem of insufficient or excessive drying in some areas. After the external hot air enters the hot air inlet pipe 10, the variable frequency drive motor 6 is turned on by the control panel 5. With the cooperation of the drive roller 17 and the redirecting roller 14, the conveyor belt 7 is driven to rotate. The paper towels conveyed by the upstream equipment enter the conveyor belt 7, and then the conveyor belt 7 is used to transport them to the drying box 8 for drying.

[0029] In summary, the airflow guiding structure of this paper towel drying box, through the coordinated use of the drying box 8, the air guide component 11, the positioning hole 12 and the rotating hole 13, solves the problem that the hot air flow direction inside the drying box is constant, which makes it easy for dead corners to appear in the drying of paper towels, resulting in insufficient drying or over-drying in some areas.

Claims

1. An airflow guiding structure for a paper towel drying box, including a conveyor frame (2), characterized in that: Several support shafts (16) are installed through the top of the inner wall of the conveyor frame (2). A variable frequency drive motor (6) is installed on the right side of the rear side of the conveyor frame (2). A redirecting roller (14) is fixedly sleeved on the outside of the leftmost support shaft (16). A drive roller (17) is fixedly sleeved on the outside of the rightmost support shaft (16). Support rollers (15) are fixedly sleeved on the outside of the other support shafts (16). A conveyor belt (7) is sleeved on the outside of the redirecting roller (14), drive roller (17) and several support rollers (15). The output end of the variable frequency drive motor (6) is connected to the rightmost support shaft (16). Support plates (4) are connected to the top of both the front and rear sides of the conveyor frame (2). A drying box (8) is connected to the top of the two support plates (4). Several air guide components (11) are installed inside the drying box (8).

2. The airflow guiding structure of the paper towel drying box according to claim 1, characterized in that: The outer diameters of the redirecting roller (14), drive roller (17) and support roller (15) are the same. A support frame (1) is installed at the bottom of the conveyor frame (2), and a control panel (5) is inlaid on the right side of the front side of the conveyor frame (2).

3. The airflow guiding structure of the paper towel drying box according to claim 1, characterized in that: Rotation holes are provided on the top of the front and rear sides of the inner wall of the conveyor frame (2), and the front and rear sides of the support shaft (16) extend to the inner wall of the rotation hole and are movably connected to the inner wall of the rotation hole through bearings.

4. The airflow guiding structure of the paper towel drying box according to claim 1, characterized in that: The front side of the drying box (8) is inlaid with a transparent tempered glass plate (3). The top of the drying box (8) is connected to an air inlet hood (9). The top of the air inlet hood (9) is connected to a hot air inlet pipe (10). The side of the hot air inlet pipe (10) away from the air inlet hood (9) is connected to the hot air delivery pipe of the outside through a flange.

5. The airflow guiding structure of the paper towel drying box according to claim 1, characterized in that: The air guide component (11) includes a rotating shaft (111), which is located at the top of the inner wall of the drying box (8). The rear side of the rotating shaft (111) passes through the drying box (8) and is connected to a rotating disk (115). A rotating sleeve (112) is fixedly fitted on the outside of the rotating shaft (111) and on the inner wall of the drying box (8). An air guide plate (113) is connected to the bottom of the rotating sleeve (112).

6. The airflow guiding structure of the paper towel drying box according to claim 5, characterized in that: Rotating holes (13) are provided on the top of the front and rear sides of the inner wall of the drying box (8). The inner wall of the rotating hole (13) is movably connected to the outside of the rotating shaft (111) through a bearing. The rotating hole (13) on the rear side penetrates the drying box (8). Bearing blocks (116) are connected to the left and right sides of the outside of the rotating disk (115). Several positioning holes (12) are provided on the rear side of the drying box (8) and outside the rotating hole (13).

7. The airflow guiding structure of the paper towel drying box according to claim 6, characterized in that: A positioning rod (114) is provided on the rear side of the bearing block (116). The front side of the positioning rod (114) passes through the bearing block (116) and extends into the interior of the positioning hole (12). A stop block (118) is connected to the rear side of the positioning rod (114). A return spring (119) is provided between the front side of the stop block (118) and the rear side of the bearing block (116). A connecting plate (117) is connected between the two stops (118).

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