A paper drying apparatus

Abstract

This utility model belongs to the field of papermaking technology, and particularly relates to a papermaking drying device. The device includes a base plate, a drying assembly mounted on top of the base plate, a mounting frame mounted on top of the drying assembly, and a smoothing assembly disposed inside the mounting frame. The smoothing assembly includes: a drive mechanism comprising a drive motor and a drive screw driven by the drive motor; a T-shaped plate threadedly connected to the drive screw, with a guide rod on the T-shaped plate installed inside the mounting frame; and a mounting frame fixed to the bottom of the T-shaped plate, containing a rotatable smoothing roller. This utility model achieves lateral displacement of the smoothing assembly through the transmission cooperation between the drive mechanism and the smoothing roller, under the action of the drive motor and via the screw drive, forming a continuous smoothing treatment on the paper surface. Furthermore, this utility model also includes a gear transmission assembly, which triggers a meshing transmission mechanism at the end of the smoothing roller's displacement, realizing automated connection between the smoothing and positioning processes, effectively improving processing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of papermaking technology, and in particular relates to a papermaking drying device. Background Technology

[0002] In the papermaking process, after the pulp undergoes multiple processes such as forming and pressing, it will contain a large amount of water. The moisture content of the formed paper is usually between 40% and 50%. In order to obtain the final paper product, its moisture content needs to be controlled between 5% and 10%. This requires dehydration treatment through drying equipment. The main function of paper drying is to remove moisture from the paper sheet, while improving the paper's strength, increasing its smoothness, and completing the sizing process.

[0003] Chinese utility model patent CN221272289U discloses a paper drying device. By starting a motor, a lead screw is driven to rotate. The lead screw then moves the clamping plate downwards through a threaded hole in the inner wall of the clamping plate until the bottom of the protective pad is in contact with the paper, thus clamping the paper. When it is necessary to remove the paper, the motor is driven again to rotate the lead screw in the opposite direction, which moves the clamping plate upwards, thereby facilitating the removal of the paper. This improves the convenience of clamping and removing paper and avoids the time-consuming, laborious, and inefficient problem of manually turning bolts when clamping and removing paper.

[0004] However, the device places the paper directly on the worktable, and the paper surface may be wrinkled, so direct drying will affect the final paper production quality. Utility Model Content

[0005] The purpose of this invention is to provide a paper drying device. This invention uses a smoothing component to smooth the paper, thereby ensuring the drying effect of the device.

[0006] The technical solution adopted by this utility model to solve the above problems is: a paper drying device, including: a base plate, a drying component installed on the top of the base plate, a mounting frame installed on the top of the drying component, and a smoothing component disposed inside the mounting frame; The smoothing components include: The drive mechanism includes a drive motor and a drive screw driven by the drive motor; A T-shaped plate is threadedly connected to the drive screw, and a guide rod is provided on the T-shaped plate. The guide rod is installed inside the mounting bracket. A mounting frame is fixed to the bottom of the T-shaped plate, and a rotatable smoothing roller is installed inside the mounting frame.

[0007] A further preferred technical solution is that the smoothing component also includes a clamping mechanism, which includes: The upper gear plate meshes with the upper gear, and the lower gear is coaxially connected to the upper gear. The intermediate shaft of the upper gear is rotatably connected to the top of the base plate. The lower gear plate meshes with the lower gear, and the lower gear plate is connected to a U-shaped double-sided gear plate.

[0008] A further preferred technical solution is that the clamping mechanism also includes: A drive gear meshes with a U-shaped double-sided toothed plate. The drive gear is connected to a lifting threaded rod. The bottom and top ends of the lifting threaded rod are rotatably connected to the top of the base plate and the top of the inner wall of the mounting frame, respectively. A U-shaped plate is threadedly connected to the lifting threaded rod, and a pressure plate is slidably connected inside the U-shaped plate; An adjusting threaded rod is threadedly connected to the pressure plate, and the adjusting threaded rod is rotatably connected to the U-shaped plate.

[0009] A further preferred technical solution is that the drying assembly includes a drying box fixedly connected to the base plate, fans spaced at the bottom of the inner wall of the drying box, heating pipes installed on the inner wall of the drying box, and several air outlets installed on the top of the drying box.

[0010] A further preferred technical solution is that the smoothing component further includes a vertical rod that penetrates through the U-shaped plate, with the top and bottom ends of the vertical rod fixedly connected to the top of the inner wall of the mounting frame and the top of the drying oven, respectively.

[0011] A further preferred technical solution is that the drying oven has several air inlets on both sides.

[0012] A further preferred technical solution is that: a guide rail plate is provided at the bottom of the upper toothed plate, and a guide groove is provided at the top of the drying box to slide and cooperate with the guide rail plate.

[0013] A further preferred technical solution is that: the guide rail plate is connected to an elastic reset component, and the elastic reset component is also fixed to the inner wall of the guide groove.

[0014] A further preferred technical solution is that: the elastic reset component includes a sleeve and a piston rod slidably connected inside the sleeve; one end of the piston rod and the inner wall of the sleeve are connected by a spring.

[0015] A further preferred technical solution is that a handwheel is fixedly connected to one end of the adjusting threaded rod.

[0016] In summary, this utility model has the following advantages: 1. This utility model achieves lateral displacement of the smoothing component through the transmission cooperation between the drive mechanism and the smoothing roller, under the action of the drive motor and the lead screw transmission, thereby forming a continuous smoothing treatment on the paper surface; 2. This utility model is equipped with a gear transmission assembly, which triggers the meshing transmission mechanism at the end of the smoothing roller displacement, and drives the lifting threaded rod to generate axial displacement, so that the pressure plate assembly forms a progressive clamping of the paper edge, realizing the automated connection of the smoothing and positioning processes, and effectively improving processing efficiency.

[0017] 3. The clamping mechanism of this utility model is equipped with an adjustable limiting component. By adjusting the cooperation between the thread and the guide structure in the adjustment mechanism, the clamping distance can be infinitely adjusted. The rotational motion of the adjusting thread rod is converted into the linear displacement of the pressure plate through the thread, forming precise control of the clamping width and improving the adaptability to different paper sizes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the base plate, mounting frame, and drying oven of this utility model; Figure 3 This is a schematic diagram of the structure of the lower gear, lower tooth plate, and U-shaped double-sided tooth plate of this utility model; Figure 4 This is a structural schematic diagram of the drive screw, T-shaped plate, and mounting frame of this utility model; Figure 5 This is a schematic diagram of the structure of the U-shaped plate, pressure plate, and adjusting threaded rod of this utility model.

[0019] In the attached diagram, the components represented by each number are as follows: 1. Base plate; 2. Mounting frame; 3. Drying oven; 4. Fan; 5. Heating tube; 6. Drive screw; 7. Upper toothed plate; 8. T-shaped plate; 9. Mounting frame; 10. Smoothing roller; 11. Upper gear; 12. Lower gear; 13. Lower toothed plate; 14. U-shaped double-sided toothed plate; 15. Drive gear; 16. Lifting threaded rod; 17. U-shaped plate; 18. Pressure plate; 19. Adjusting threaded rod; 20. Vertical rod. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law. Example:

[0022] To solve the technical problem mentioned in the background section, namely the wrinkling phenomenon existing in paper before drying, please combine... Figures 1-5This disclosure provides a paper drying apparatus, including a base plate 1, a drying assembly mounted on top of the base plate 1, a mounting frame 2 mounted on top of the drying assembly, and a smoothing assembly disposed inside the mounting frame 2. The smoothing components include: The drive mechanism includes a drive motor and a drive screw 6 driven by the drive motor; A T-shaped plate 8 is threadedly connected to the drive screw 6. A guide rod is provided on the T-shaped plate 8, and the guide rod is installed inside the mounting bracket 2. A mounting frame 9 is fixed to the bottom of the T-shaped plate 8, and a rotatable smoothing roller 10 is provided inside the mounting frame 9.

[0023] The base plate 1 serves as the fundamental support structure for the entire device. It provides stability and a mounting platform, ensuring that other components are securely fixed to it. The drying assembly is the only device in the prior art capable of undertaking the core task of paper dehydration. Its main function is to heat the paper using hot air, infrared radiation, or contact heat conduction to evaporate the moisture it contains, while simultaneously improving paper strength, increasing smoothness, and completing drying processes such as sizing. The mounting frame 2 serves as the main support and guide rail frame for the smoothing assembly. It is fixed to the top of the drying assembly and internally houses and guides the smoothing assembly to move along its designated track.

[0024] The smoothing component is the core part, its function being to apply a certain pressure and / or rolling action to the paper surface before or simultaneously with the paper entering the drying area, to eliminate wrinkles and creases generated during paper placement or transport, ensuring a smooth and flat surface during drying, thereby improving the quality of the final product. The drive mechanism provides the power source for the lateral movement of the smoothing component. The drive screw 6 converts the rotational motion of the drive motor into precise linear motion. Its rotation drives the movement of the component threadedly connected to it. The T-shaped plate 8 serves as a connecting and load-bearing transition plate between the drive mechanism and the lower smoothing actuator; its top is threadedly connected to the drive screw 6, and its bottom is fixedly connected to the mounting frame 9. The guide rod ensures that the T-shaped plate 8, along with the entire lower smoothing actuator, can only move smoothly and without wobbling in a straight line along a preset horizontal path. The mounting frame 9 serves as the direct support and mounting base for the smoothing roller 10. It is fixed to the bottom of the T-shaped plate 8, and its internal structure allows and accommodates the rotation of the smoothing roller 10. The smoothing roller 10 is the core actuator of the smoothing component, rotatably mounted within the mounting frame 9. While smoothing the overall lateral movement of the component, its own rotation or rolling contact smoothly applies pressure to the paper surface, flattening the paper through rolling friction and eliminating wrinkles and minor unevenness.

[0025] Furthermore, the smoothing assembly also includes a clamping mechanism, which includes: an upper gear plate 7 that meshes with the upper gear 11, a lower gear 12 that is coaxially connected to the upper gear 11, and an intermediate shaft of the upper gear 11 that is rotatably connected to the top of the base plate 1; and a lower gear plate 13 that meshes with the lower gear 12, with a U-shaped double-sided gear plate 14 connected to the lower gear plate 13.

[0026] The upper gear plate 7 is the core driving component of the clamping mechanism. When the smoothing assembly moves laterally, its position change pushes the upper gear plate 7 to move along its length. The upper gear 11, as the first-stage direction converter, meshes with the rack on the upper gear plate 7. The horizontal linear movement of the upper gear plate 7 forces the upper gear 11 to rotate around its fixed axis. The intermediate shaft of the upper gear 11 is mounted and fixed to the top of the base plate 1 via bearings or other rotating connectors. It provides a fixed and rotatable support center for the upper gear 11 and the lower gear 12. The lower gear 12, as the second-stage direction converter, is coaxially fixedly connected to the intermediate shaft of the upper gear 11, meaning that the two rotate synchronously. When the upper gear 11 is driven to rotate, the lower gear 12 rotates synchronously at the same speed and direction. The lower gear plate 13 meshes with the rack on the lower gear 12. When the lower gear 12 rotates, its teeth push the lower gear plate 13 to move horizontally along its length. The upper gear 11 and the lower gear 12 usually rotate in the same direction, which means that the upper gear plate 7 and the lower gear plate 13 move in opposite directions, for example, one moves to the left while the other moves to the right.

[0027] Furthermore, the clamping mechanism also includes: a drive gear 15 meshing with the U-shaped double-sided toothed plate 14, the drive gear 15 being connected to a lifting threaded rod 16, the bottom end and top end of the lifting threaded rod 16 being rotatably connected to the top of the base plate 1 and the top of the inner wall of the mounting bracket 2 respectively; a U-shaped plate 17 threadedly connected to the lifting threaded rod 16, a pressure plate 18 being slidably connected inside the U-shaped plate 17; and an adjusting threaded rod 19 threadedly connected to the pressure plate 18, the adjusting threaded rod 19 being rotatably connected to the U-shaped plate 17.

[0028] The U-shaped double-sided toothed plate 14 serves as the initial drive source for the vertical pressure mechanism. Its horizontal movement, through meshing with the drive gear 15, converts linear motion into rotational motion, thereby driving the subsequent lifting mechanism. The lifting threaded rod 16 is the main actuator and motion converter for vertical lifting. One end of it is coaxially fixedly connected to the drive gear 15 via a coupling or keyway, achieving synchronous rotation. The bottom end of the lifting threaded rod 16 is rotatably connected to the top of the base plate 1 via bearings, and its top end is also rotatably connected to the top of the inner wall of the mounting frame 2 via bearings. The U-shaped plate 17 moves vertically up and down along its axis as the lifting threaded rod 16 rotates. The pressure plate 18 is the final vertical paper pressing / contact actuator. It is typically flat and its horizontal dimensions are sufficient to cover the effective working width of the paper. It is slidably connected to the U-shaped plate 17, allowing it to slide vertically relative to the U-shaped plate 17 with a limited range. The adjusting threaded rod 19 provides the stroke limit for the pressure plate 18. Rotating the adjusting screw 19 changes the vertical position of its lower end relative to the top of the U-shaped plate 17. Since the pressure plate 18 and the end of the adjusting screw 19 are fixed relative to each other, the pressure plate 18 is forced to slide up and down relative to the U-shaped plate 17 during the aforementioned rotation of the adjusting screw 19. That is, by tightening the adjusting screw 19, the force of the pressure plate 18 pressing against the paper, or the distance of the pressure plate 18 towards the paper, can be further finely adjusted.

[0029] Furthermore, the drying assembly includes a drying chamber 3 fixedly connected to the base plate 1, a fan 4 spaced at the bottom of the inner wall of the drying chamber 3, a heating tube 5 disposed on the inner wall of the drying chamber 3, and a plurality of air outlets disposed on the top of the drying chamber 3.

[0030] The drying chamber 3 serves as the thermal circulation space for the drying process, providing the closed / semi-closed environment required for paper drying. The fan 4 acts as the power source for airflow circulation, penetrating the paper surface and carrying away moisture, ultimately expelling the humid air. The heating tube 5 is the core component for heat energy conversion, typically installed on the inner wall of the drying chamber in the form of an electric heating wire or quartz tube, directly heating the air. Through the forced convection of the fan 4, the cold air flows over the surface of the heating tube and is rapidly heated into hot air, adapting to the temperature requirements of different paper types or drying stages.

[0031] Furthermore, the smoothing assembly also includes a vertical rod 20 that runs through the U-shaped plate 17. The top and bottom ends of the vertical rod 20 are fixedly connected to the top of the inner wall of the mounting frame 2 and the top of the drying chamber 3, respectively. The vertical rod 20 is arranged parallel to the lifting threaded rod 16 to bear lateral forces, preventing the threaded rod from bending due to single-point force, and ensuring that the U-shaped plate 17 moves without deviation or jamming during lifting.

[0032] Furthermore, the drying chamber 3 has several air inlets on both sides. These air inlets are used to optimize hot air circulation efficiency and ensure uniform drying.

[0033] Furthermore, the bottom of the upper toothed plate 7 is provided with a guide rail plate, and the top of the drying chamber 3 is provided with a guide groove that slides with the guide rail plate. As an extension of the rigid structure of the upper toothed plate 7, the bottom surface of the guide rail plate is designed as a smooth or ribbed track surface, which slides with the guide groove on the top of the drying chamber.

[0034] Furthermore, the elastic reset component includes a sleeve and a piston rod slidably connected inside the sleeve; one end of the piston rod is connected to the inner wall of the sleeve by a spring. The spring is an elastic energy storage medium, pre-compressed and installed between the end of the piston rod and the inner wall of the sleeve. When external pressure pushes the piston rod, the spring is compressed to store energy and buffer the impact force; when the external force decreases, the spring releases energy and pushes the piston rod back to its original position.

[0035] Furthermore, a handwheel is fixedly connected to one end of the adjusting threaded rod 19. The handwheel is used to increase the torque of rotating the adjusting threaded rod 19.

[0036] The following is a method of using a paper drying apparatus according to an embodiment of this disclosure: Depending on the paper type, such as thickness, adjust the relevant components. Adjust the threaded rod 19 by rotating the handwheel to set the downward pressure of the pressure plate 18. Adjust the temperature of the drying assembly, i.e., the power of the heating element 5; adjust the airflow, i.e., the speed of the fan 4; preheat to the appropriate temperature. Place the paper to be dried flat on the operating table at the top of the drying chamber 3. Ensure the paper is centered and avoids misalignment to facilitate full coverage by the smoothing roller 10. Start the drive motor via the control switch, and the drive screw 6 begins to rotate. The drive screw 6 moves the T-shaped plate 8 laterally along the guide rod, and the mounting frame 9 and the smoothing roller 10 move accordingly. During movement, the smoothing roller 10 automatically rolls in contact with the paper surface, applying uniform pressure to eliminate wrinkles and minor unevenness. The T-shaped plate 8 drives the upper toothed plate 7 to move horizontally. The upper toothed plate 7 drives the upper gear 11 to rotate. The upper gear 11 drives the lower gear 12 to rotate synchronously. The lower gear 12 drives the lower toothed plate 13 to move, thereby pushing the U-shaped double-sided toothed plate 14. The U-shaped double-sided toothed plate 14 meshes with the drive gear 15, causing the lifting threaded rod 16 to rotate. The lifting threaded rod 16 drives the U-shaped plate 17 to descend. The pressure plate 18 is inside the U-shaped plate 17 until it contacts the paper surface.

[0037] Furthermore, the same or similar element symbols are used as far as possible in the accompanying drawings and description to refer to the same or similar parts or steps. The drawings are presented in a simplified form and are not drawn to scale. For convenience and clarity only, directional terms such as top, bottom, front, back, left, right, front, back, upward, above, above, below, behind, and front may be used to refer to the drawings. These and similar directional terms should not be construed as limiting the scope of this disclosure in any way.

Claims

1. A paper drying apparatus, characterized in that, Includes a base plate (1), a drying assembly mounted on top of the base plate (1), a mounting bracket (2) mounted on top of the drying assembly, and a smoothing assembly disposed inside the mounting bracket (2); The smoothing component includes: The drive mechanism includes a drive motor and a drive screw (6) driven by the drive motor. A T-shaped plate (8) is threadedly connected to the drive screw (6), and a guide rod is provided on the T-shaped plate (8), which is installed inside the mounting bracket (2); A mounting frame (9) is fixed to the bottom of the T-shaped plate (8), and a rotatable smoothing roller (10) is provided inside the mounting frame (9).

2. The paper drying apparatus according to claim 1, characterized in that, The smoothing component further includes a clamping mechanism, the clamping mechanism comprising: The upper gear plate (7) meshes with the upper gear (11), and the lower gear (12) is coaxially connected to the upper gear (11). The intermediate shaft of the upper gear (11) is rotatably connected to the top of the base plate (1). A lower gear plate (13) meshes with the lower gear (12), and the lower gear plate (13) is connected to a U-shaped double-sided gear plate (14).

3. The paper drying apparatus according to claim 2, characterized in that, The clamping mechanism further includes: A drive gear (15) meshes with the U-shaped double-sided toothed plate (14), and the drive gear (15) is connected to a lifting threaded rod (16). The bottom end and the top end of the lifting threaded rod (16) are respectively rotatably connected to the top of the base plate (1) and the top of the inner wall of the mounting bracket (2). A U-shaped plate (17) is threadedly connected to the lifting threaded rod (16), and a pressure plate (18) is slidably connected inside the U-shaped plate (17). An adjusting threaded rod (19) is threadedly connected to the pressure plate (18), and the adjusting threaded rod (19) is rotatably connected to the U-shaped plate (17).

4. A paper drying apparatus according to claim 3, characterized in that, The drying assembly includes a drying box (3) fixedly connected to the base plate (1), a fan (4) spaced at the bottom of the inner wall of the drying box (3), a heating tube (5) set on the inner wall of the drying box (3), and several air outlets set on the top of the drying box (3).

5. A paper drying apparatus according to claim 4, characterized in that, The smoothing component also includes a vertical rod (20) that passes through the U-shaped plate (17), the top and bottom of which are fixedly connected to the top of the inner wall of the mounting frame (2) and the top of the drying oven (3), respectively.

6. A paper drying apparatus according to claim 1, characterized in that, The drying box (3) has several air inlets on both sides.

7. A paper drying apparatus according to claim 4, characterized in that, The bottom of the upper toothed plate (7) is provided with a guide rail plate, and the top of the drying box (3) is provided with a guide groove that slides with the guide rail plate.

8. A paper drying apparatus according to claim 7, characterized in that, The guide rail plate is connected to an elastic reset component, which is also fixed to the inner wall of the guide groove.

9. A paper drying apparatus according to claim 8, characterized in that, The elastic reset component includes a sleeve and a piston rod slidably connected inside the sleeve; one end of the piston rod and the inner wall of the sleeve are connected by a spring.

10. A paper drying apparatus according to claim 3, characterized in that, A handwheel is fixedly connected to one end of the adjusting threaded rod (19).

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