A paper tube curing device

Abstract

The application relates to a paper tube curing device and relates to the technical field of paper tube production. The paper tube curing device comprises a drying box, a bottom plate is arranged in the drying box, a feeding port for penetrating a paper tube is arranged at one end of the drying box, a discharging port for penetrating the paper tube is arranged at the other end of the drying box, a pipe supporting frame for placing and driving the paper tube to move along the length direction is arranged on the bottom plate, one end of the paper tube penetrates the feeding port, is placed on the pipe supporting frame and penetrates out through the discharging port, first supporting frames and second supporting frames are arranged on the two sides of the pipe supporting frame to enclose the paper tube, the first supporting frames are located above the second supporting frames, a plurality of UV lamps for curing the paper tube are arranged in the first supporting frames and the second supporting frames, a first adjusting assembly is connected to the first supporting frames, a second adjusting assembly is connected to the second supporting frames, and the first adjusting assembly and the second adjusting assembly are arranged in the drying box. The application has the effect of greatly improving the consistency of curing quality and the universality of the equipment.

Description

Technical Field

[0001] This application relates to the technical field of paper tube production, and in particular to a paper tube curing apparatus. Background Technology

[0002] During the production and processing of paper tubes, the surface of the paper tubes often needs to be coated with a curing agent and cured to enhance the strength, hardness, stability, and water resistance of the paper tubes, thereby meeting subsequent usage requirements (such as for wrapping films, paper rolls, etc.). Currently, most paper tube curing devices on the market use hot air drying curing. Hot air drying requires high temperatures and long drying times, which not only consumes a lot of energy but also easily leads to uneven evaporation of moisture inside the paper tube, resulting in problems such as paper tube deformation and cracking, affecting product quality. Secondly, hot air can easily create local temperature dead zones in the drying chamber, causing inconsistent curing degrees on the paper tube surface, further reducing the pass rate of paper tubes. To address the drawbacks of hot air drying, some devices employ UV curing technology, utilizing ultraviolet light emitted from UV lamps to irradiate the UV curing agent coated on the paper tube surface, achieving rapid curing. However, in existing UV curing devices, the installation position of the UV lamp is fixed, making it impossible to adjust the distance between the UV lamp and the paper tube surface according to the paper tube's diameter. When the paper tube diameter changes, insufficient or excessive UV light intensity can easily occur, leading to poor curing results and potentially causing secondary damage to the paper tube. Utility Model Content

[0003] In order to improve the problem that the UV lamp installation position in the UV curing device is fixed, and the UV light intensity is prone to insufficient or excessive when the diameter of the paper tube changes, resulting in poor curing effect and possible secondary damage to the paper tube, this application provides a paper tube curing device.

[0004] This application provides a paper tube curing device, which adopts the following technical solution: A paper tube curing device includes a drying chamber with a base plate installed inside. One end of the drying chamber has an inlet for inserting paper tubes, and the other end has an outlet for inserting paper tubes. A support frame is installed on the base plate to hold and drive the paper tubes to move along their length. One end of the paper tube passes through the inlet, is placed on the support frame, and exits through the outlet. A first support frame and a second support frame are provided on both sides of the support frame to encircle the paper tube. The first support frame is located above the second support frame. Multiple UV lamps for curing the paper tubes are arranged inside both the first and second support frames. A first adjustment component is connected to the first support frame, and a second adjustment component is connected to the second support frame. Both the first and second adjustment components are installed inside the drying chamber.

[0005] By adopting the above technical solution, the drying oven provides a closed environment for paper tube curing, reducing external interference, and the base plate provides an installation foundation for each component, ensuring structural stability. The support frame not only supports the paper tube but also drives it to move along its length, enabling continuous curing operations. The first and second support frames surround the paper tube, allowing the UV lamp to irradiate the paper tube surface from multiple angles, achieving uniform curing in conjunction with the paper tube's movement. The first and second adjustment components can adjust the positions of the first and second support frames respectively, thereby changing the distance between the UV lamp and the paper tube surface to adapt to the curing requirements of paper tubes with different diameters. Compared to devices with a fixed irradiation distance, this significantly improves the consistency of curing quality and the versatility of the equipment.

[0006] Optionally, the first adjustment assembly includes a first support rod installed on one side wall of the drying chamber and a second support rod disposed on the other side wall of the drying chamber. A first adapter is installed on the top of the first support rod, and a second adapter is installed on the top of the second support rod. A first connecting rod connects the first adapter and the second adapter. A third adapter is symmetrically installed on the first connecting rod. A first screw is threadedly connected to the third adapter. A first handwheel is installed at one end of the first screw, and the other end is threadedly connected to the third adapter and extends out of the third adapter to connect to a first actuating rod. The first actuating rod is connected to the first support frame, and a first locking nut is threadedly connected to the end of the first screw away from the first handwheel.

[0007] By adopting the above technical solution, the first and second support rods provide stable support for the first connecting rod, and the first and second adapters ensure that the first connecting rod is firmly installed. When the operator turns the first handwheel, the first screw generates axial displacement through threaded transmission with the third adapter, driving the first actuating rod to push the first support frame up and down, thereby achieving precise adjustment of the distance between the UV lamp and the paper tube. After adjustment, the first locking nut can fix the position of the first screw, preventing positional displacement due to vibration during operation and ensuring stable curing parameters.

[0008] Optionally, the second adjustment assembly includes a third support rod installed on one side of the base plate and a fourth support rod disposed on the other side of the base plate. A sixth adapter is installed on the top of the third support rod, and a fourth adapter is installed on the top of the fourth support rod. A second connecting rod connects the sixth adapter and the fourth adapter. The first connecting rod is located above the paper tube, and the second connecting rod is located below the paper tube, with the first connecting rod located above the second connecting rod. A fifth adapter is symmetrically installed on the second connecting rod. A second screw is threadedly connected to the fifth adapter. A second handwheel is installed at one end of the second screw, and the other end is threadedly connected to the fifth adapter and extends out of the fifth adapter to connect to a second action rod. The second action rod is connected to the second support frame, and a second locking nut is threadedly connected to the end of the second screw away from the second handwheel.

[0009] By adopting the above technical solution, the third and fourth support rods fix the second adjustment assembly to the base plate, and the sixth and fourth adapters ensure the stable installation of the second connecting rod. When the second handwheel is turned, the second screw drives the second action rod to move through the threaded transmission with the fifth adapter, realizing the position adjustment of the second support frame. In conjunction with the first adjustment assembly, the UV lamp irradiation angle and distance can be flexibly adjusted from both the top and bottom. The second locking nut can effectively lock the adjusted position, ensuring that the second support frame remains stable during the movement of the paper tube, further improving the curing uniformity.

[0010] Optionally, a first base plate is installed at both ends of the first support frame, and the first actuating rod is connected to the first support frame through the first base plate. A second base plate is provided at both ends of the second support frame, and the second actuating rod is connected to the second support frame through the second base plate.

[0011] By adopting the above technical solution, the first and second substrates increase the contact area between the actuating rod and the support frame, making the force distribution more uniform and preventing excessive local stress on the support frame, which could lead to deformation. At the same time, the substrate structure facilitates disassembly and maintenance; when the support frame or actuating rod shows wear, the component can be replaced individually, reducing maintenance costs and extending the overall service life of the device.

[0012] Optionally, both the first support frame and the second support frame are arc-shaped. The first support frame is provided with a first protective cover, and the second support frame is installed with a second protective cover. The UV lamp is installed inside the first protective cover and the second protective cover.

[0013] By adopting the above technical solution, the arc-shaped first and second support frames are adapted to the shape of the cylindrical paper tube, allowing the UV lamp to fit more closely to the surface of the paper tube and improving light utilization. The first and second protective covers can effectively block UV light leakage, protecting operators from ultraviolet damage, while preventing dust and other impurities from contaminating the surface of the UV lamp, ensuring stable irradiation intensity, and extending the service life of the UV lamp.

[0014] Optionally, the base plate is provided with a plurality of heat dissipation holes.

[0015] By adopting the above technical solution, the heat dissipation holes can promptly dissipate the heat generated by the UV lamps inside the drying chamber, preventing excessively high temperatures from affecting the curing quality of the paper tubes. At the same time, it prevents high-temperature environments from damaging the UV lamps and other electronic components, improving the stability and safety of the device operation and extending the service life of the equipment.

[0016] Optionally, a first mounting plate is detachably mounted on one end of the drying box, and a second mounting plate is detachably mounted on the other end. The first mounting plate is provided with a feed inlet, and the second mounting plate is provided with a discharge outlet.

[0017] By adopting the above technical solution, the detachable first and second mounting plates facilitate the replacement of mounting plates with different sizes of inlet and outlet ports according to the diameter of the paper tube, improving the adaptability of the device to paper tubes of different specifications. At the same time, the detachable mounting plates facilitate cleaning and maintenance of the inside of the drying chamber, making operation convenient and reducing the difficulty of equipment maintenance.

[0018] Optionally, the bottom of the support rack has multiple through holes.

[0019] By adopting the above technical solution, the through holes can enhance air circulation in the support rack area, forming a more efficient heat dissipation channel in conjunction with the heat dissipation holes in the base plate, thus accelerating heat dissipation. At the same time, the through holes can reduce the contact area between the support rack and the bottom of the paper tube, reducing the risk of paper tube deformation due to poor local heat dissipation, and further ensuring curing quality.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. The distance between the UV lamp and the paper tube can be flexibly adjusted through the first and second adjustment components to adapt to the curing requirements of paper tubes of different diameters. Combined with the paper tube moving driven by the support frame and the surrounding setting of the arc support frame, uniform curing of the paper tube surface is achieved, which greatly improves the product quality stability. 2. The combination of the UV lamp protective cover and heat dissipation hole structure effectively prevents ultraviolet leakage and protects the safety of operators, while also dissipating working heat in a timely manner to avoid damage to the equipment and paper tubes caused by high temperatures, thereby improving the safety and reliability of the device. Attached Figure Description

[0021] Figure 1This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the first adjustment component and the second adjustment component in the embodiments of this application.

[0022] Explanation of reference numerals in the attached figures: 1. Drying oven; 11. First mounting plate; 111. Feed inlet; 12. Second mounting plate; 121. Discharge outlet; 13. Base plate; 131. Heat dissipation holes; 2. Support frame; 3. First support frame; 31. First protective cover; 32. First base plate; 4. Second support frame; 41. Second protective cover; 42. Second base plate; 43. UV lamp; 5. First adjustment assembly; 51. First support rod; 511. First adapter; 52. Second support rod; 521. Second adapter; 53. First connecting rod; 531. Third adapter; 532. First screw; 533. First handwheel; 54. First actuating rod; 6. Second adjusting assembly; 61. Third support rod; 611. Sixth adapter; 62. Fourth support rod; 621. Fourth adapter; 63. Second connecting rod; 631. Fifth adapter; 632. Second screw; 633. Second handwheel; 64. Second actuating rod; 7. Paper tube. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0027] This application discloses a paper tube curing device, referring to... Figures 1-3 The paper tube curing device includes a drying chamber 1, a base plate 13 installed inside the drying chamber 1, an inlet 111 for inserting paper tubes 7 at one end of the drying chamber 1, and an outlet 121 for inserting paper tubes 7 at the other end. A support frame 2 for placing and driving the paper tubes 7 to move along the length direction is installed on the base plate 13. One end of the paper tube 7 passes through the inlet 111, is placed on the support frame 2, and exits through the outlet 121. A first support frame 3 and a second support frame 4 are provided on both sides of the support frame 2 to surround the paper tubes 7. The first support frame 3 is located above the second support frame 4. Multiple UV lamps 43 for curing paper tubes 7 are arranged inside both the first support frame 3 and the second support frame 4. A first adjustment component 5 is connected to the first support frame 3, and a second adjustment component 6 is connected to the second support frame 4. Both the first adjustment component 5 and the second adjustment component 6 are installed inside the drying chamber 1.

[0028] In this device, the drying chamber 1 is a closed working space for curing the paper tube 7, which can isolate external dust, impurities and other contaminants, prevent the surface of the paper tube 7 from being contaminated during the curing process, and also provide an irradiation environment for the UV lamp 43, reducing the interference of external light and airflow on the UV curing effect. The base plate 13 provides an installation platform for the support frame 2 and the second adjustment component 6, and the heat dissipation holes 131 on the base plate 13 can help realize the heat dissipation function inside the drying chamber 1.

[0029] The inlet 111 and outlet 121 are the channels for the paper tube 7 to enter and exit the drying chamber 1, limiting the conveying path of the paper tube 7 and ensuring that the paper tube 7 enters the drying chamber 1 in a preset direction, passes through the UV curing area, and then exits. This avoids the paper tube 7 deviating from the path during the curing process, resulting in local uncured or over-cured areas. This achieves continuous curing operation of the paper tube 7. With the drive function of the support frame 2, the paper tube 7 can pass through the curing area at a uniform speed.

[0030] The support frame 2 bears the weight of the paper tube 7, ensuring that the paper tube 7 is in a stable horizontal state in the drying box 1. Through its own driving structure, such as the driven roller or the conveyor roller driven by the motor, the paper tube 7 is driven to move at a uniform speed along the length direction, so that each area of ​​the surface of the paper tube 7 can pass through the irradiation range of the UV lamp 43 in sequence, thereby improving the overall production efficiency.

[0031] The first support frame 3 and the second support frame 4 are the mounting carriers for the UV lamp 43. The first support frame 3 is located above the paper tube 7, and the second support frame 4 is located on both sides below the paper tube 7. The two together form a structure surrounding the paper tube 7, fixing the UV lamp 43 in a preset position around the paper tube 7. The arc-shaped setting can further fit the shape of the cylindrical paper tube 7, so that the light from the UV lamp 43 is closer to the surface of the paper tube 7.

[0032] When the UV lamp 43 is powered on, it emits ultraviolet light, which irradiates the UV curing agent coated on the surface of the paper tube 7, triggering a cross-linking polymerization reaction in the curing agent. This causes the curing agent to cure quickly and form a solid shape, enhancing the strength, hardness, and stability of the paper tube 7. Compared with traditional hot air drying, UV curing does not require high-temperature and long-term heating, significantly shortening the curing time and reducing energy consumption. At the same time, it avoids problems such as uneven moisture evaporation, deformation, and cracking of the paper tube 7 caused by high temperatures.

[0033] The first adjustment component 5 is connected to the first support frame 3, and the second adjustment component 6 is connected to the second support frame 4. The vertical or horizontal position of the support frame is adjusted via a threaded drive, thereby changing the distance between the UV lamp 43 and the surface of the paper tube 7. After adjustment, the position can be fixed by tightening the lock nut to prevent displacement during operation. This flexible adjustment allows for adaptation to various specifications of paper tubes 7, improving the equipment's versatility. Simultaneously, the distance of the UV lamp 43 can be fine-tuned according to the curing effect (e.g., moving closer to larger diameter paper tubes 7 and further away to smaller diameter paper tubes 7), ensuring consistent curing quality for different specifications of paper tubes 7 and meeting diverse production needs.

[0034] The paper tube curing device provides a closed environment through a drying chamber 1, fixes UV lamps 43 around the paper tubes 7 with a first support frame 3 and a second support frame 4, emits ultraviolet light for rapid curing, and adjusts the components to adapt to the coordinated work of paper tubes 7 of different diameters, so as to achieve continuous, uniform and efficient curing of the paper tubes 7, replacing the traditional hot air drying and fixed position UV curing methods.

[0035] The first adjustment assembly 5 includes a first support rod 51 installed on one side wall of the drying chamber 1 and a second support rod 52 installed on the other side wall of the drying chamber 1. A first adapter 511 is installed on the top of the first support rod 51, and a second adapter 521 is installed on the top of the second support rod 52. A first connecting rod 53 is connected between the first adapter 511 and the second adapter 521. A third adapter 531 is symmetrically installed on the first connecting rod 53. A first screw 532 is threadedly connected to the third adapter 531. A first handwheel 533 is installed at one end of the first screw 532, and the other end is threadedly connected to the third adapter 531. A first action rod 54 extends out of the third adapter 531 and is connected to the first support frame 3. A first locking nut is threadedly connected to the end of the first screw 532 away from the first handwheel 533.

[0036] The first support rod 51 and the second support rod 52 are the basic support structures of the first adjustment component 5. The first support rod 51 is installed on one side wall of the drying box 1, and the second support rod 52 is set on the other side wall of the drying box 1. The two are symmetrically distributed and together provide vertical support for the first adapter 511 and the first connecting rod 53 at the top, so as to stably fix the entire component inside the drying box 1 and ensure that the component does not tilt or shake during adjustment and operation.

[0037] The first adapter 511 and the second adapter 521 are transitional components connecting the support rod and the first connecting rod 53. They have an internal mounting structure (such as a slot or bolt hole) adapted to the first connecting rod 53, which can accurately and firmly fix the first connecting rod 53 between the two support rods. At the same time, it eliminates the installation error between the support rod and the connecting rod, ensures that the first connecting rod 53 is in a horizontal state, and achieves precise docking between the support rod and the connecting rod, avoiding the tilting of the first connecting rod 53 due to installation deviation. The first connecting rod 53 connects the first adapter 511 and the second adapter 521, forming a transverse support beam. This provides an installation carrier for the third adapter 531. Its length is adapted to the internal width of the drying chamber 1, ensuring that the two third adapters 531 are symmetrically installed above both sides of the paper tube 7. This allows subsequent adjustments to be applied evenly to both ends of the first support frame 3, preventing deformation of the support frame due to unilateral adjustments. The third adapter 531 has an internal thread adapted to the first screw 532, serving as a mounting base for the first screw 532. This enables threaded transmission of the first screw 532 while limiting its axial movement to prevent radial offset during rotation, ensuring precise transmission of screw power to the first action rod 54. The first screw 532, through threaded transmission with the third adapter 531, moves axially when the operator turns the handwheel, thereby pushing or pulling the first actuating rod 54, causing the first support frame 3 and UV lamp 43 to move closer to or further away from the paper tube 7, thus adjusting the irradiation distance. The first handwheel 533 is the force-applying component for the operator, and its surface is provided with anti-slip texture (or rubber sleeve) to increase the friction between the hand and the handwheel, making it easier for the operator to grip and apply rotational force. At the same time, by increasing the lever arm, the force required to turn the screw is reduced, making the adjustment operation more effortless.

[0038] The first action rod 54 connects the first screw 532 and the first support frame 3. As a force transmission component, it evenly transmits the axial thrust or tension of the first screw 532 to both ends of the first support frame 3, avoiding the screw from acting directly on the support frame and causing excessive local stress. At the same time, it can adjust its own length according to the installation position of the support frame to ensure that the force transmission direction is consistent with the adjustment direction of the support frame, such as vertical adjustment. The first locking nut is threaded to the end of the first screw 532 away from the handwheel. After the first screw 532 is adjusted to the position, the locking nut is tightened so that it is in close contact with the surface of the third adapter 531. The axial movement of the screw is restricted by friction to prevent the screw from loosening due to vibration during the operation of the device (such as when the support frame 2 drives the paper tube 7 to move and generate vibration), which would cause the position of the UV lamp 43 to shift. The second adjustment assembly 6 includes a third support rod 61 installed on one side of the base plate 13 and a fourth support rod 62 installed on the other side wall of the base plate 13. A sixth adapter 611 is installed on the top of the third support rod 61, and a fourth adapter 621 is installed on the top of the fourth support rod 62. A second connecting rod 63 is connected between the sixth adapter 611 and the fourth adapter 621. A first connecting rod 53 is located above the paper tube 7, and a second connecting rod 63 is located below the paper tube 7, with the first connecting rod 53 located above the second connecting rod 63. A fifth adapter 631 is symmetrically installed on the second connecting rod 63. A second screw 632 is threadedly connected to the fifth adapter 631. A second handwheel 633 is installed at one end of the second screw 632, and the other end is threadedly connected to the fifth adapter 631. A second action rod 64 extends out of the fifth adapter 631 and is connected to the second support frame 4. A second locking nut is threadedly connected to the end of the second screw 632 away from the second handwheel 633.

[0039] The third support rod 61 and the fourth support rod 62 are respectively installed on both sides of the base plate 13 and symmetrically distributed inside the drying oven 1. Together, they provide vertical support for the top adapter and connecting rod, and stably fix the entire assembly on the base plate 13, ensuring that the assembly does not tilt or shake during adjustment and operation. At the same time, they are tightly connected to the base plate 13 and bear the stable support force transmitted by the base plate 13.

[0040] The sixth adapter 611 and the fourth adapter 621 are transitional components connecting the support rod and the connecting rod. They have internal installation structures for the connecting rod, such as slots and bolt holes, which can accurately and firmly fix the connecting rod between the two support rods. At the same time, they eliminate installation errors between the support rod and the connecting rod, ensuring that the connecting rod is in a horizontal state. This provides a flat benchmark for the installation of subsequent components, achieves precise docking between the support rod and the connecting rod, and avoids tilting of the connecting rod due to installation deviation. The second connecting rod 63 connects the top adapters on both sides, forming a transverse support beam that provides an installation carrier for the symmetrical adapters. Its length matches the internal width of the drying chamber 1, ensuring that the symmetrical adapters are evenly distributed on both sides below the paper tube 7. This allows subsequent adjustments to be applied synchronously to both ends of the lower support frame, preventing deformation of the support frame due to unilateral adjustment. It also forms a vertically corresponding layout with the connecting rod of the upper adjustment component, constructing a complete adjustment frame around the paper tube 7. The fifth adapter 631 is symmetrically installed on the transverse connecting rod and has an internal thread adapted to the screw, serving as a mounting base for the screw. This allows for threaded transmission of the screw while restricting its movement to axial, preventing radial offset during rotation and ensuring precise transmission of screw power to the actuating rod, providing a stable transmission path for subsequent adjustments.

[0041] The second screw 632, through threaded transmission with the adapter, moves axially when the operator turns the handwheel, thereby pushing or pulling the actuating rod. This causes the lower support frame and UV lamp 43 to move closer to or further away from the paper tube 7, adjusting the irradiation distance below the paper tube 7. This, in conjunction with the upper adjustment assembly, forms a full-range adjustment around the paper tube 7. The second handwheel 633 is the force-applying component for the operator. Its surface is provided with anti-slip textures or a rubber sleeve to increase the friction between the hand and the handwheel, making it easier for the operator to grip and apply rotational force. Simultaneously, by increasing the lever arm, the force required to turn the screw is reduced, making the adjustment operation more effortless, especially suitable for the operating posture in the lower space. The second action rod 64 connects the transmission screw and the lower support frame. As a force transmission component, it evenly transmits the axial thrust or tension of the screw to both ends of the support frame, avoiding excessive local stress caused by the screw directly acting on the support frame. At the same time, its length can be adjusted according to the installation position of the support frame to ensure that the direction of force transmission is consistent with the adjustment direction of the support frame (such as vertical or oblique adjustment). It adapts to the installation angle below the paper tube 7, realizing a flexible connection between the screw power and the lower support frame, avoiding deformation of the support frame caused by rigid contact, and extending the service life of the components.

[0042] The second locking nut is threaded onto the end of the transmission screw furthest from the handwheel. After the screw is adjusted to the correct position, tighten the nut to make it fit tightly against the surface of the adapter. The friction force restricts the axial movement of the screw, preventing the screw from loosening due to vibration during device operation (such as vibration caused by the movement of the paper tube 7 driven by the support frame 2), which would lead to the displacement of the position of the UV lamp 43 below, thus ensuring the stability of the adjusted position.

[0043] The first support frame 3 has a first base plate 32 installed at both ends, and the first actuating rod 54 is connected to the first support frame 3 through the first base plate 32. The second support frame 4 has a second base plate 42 installed at both ends, and the second actuating rod 64 is connected to the second support frame 4 through the second base plate 42. The first base plate 32 is an intermediate component connecting the actuating rod and the support frame. Its surface is provided with mounting structures adapted to the actuating rod and the support frame, such as bolt holes and positioning grooves, which can evenly distribute the force of the actuating rod to the end of the support frame, and at the same time accurately position the connection position of the actuating rod, ensuring that the actuating rod and the support frame are perpendicular or at a preset angle, and avoiding connection deviation. The second base plate 42 is a transition component connecting the corresponding action rod and the support frame. Through its own mounting structure, it evenly transmits the power from the action rod to both ends of the support frame, while limiting the relative position of the action rod and the support frame, ensuring that the power transmission direction is consistent with the adjustment direction of the support frame, and avoiding force offset loss.

[0044] Both the first support frame 3 and the second support frame 4 are arc-shaped. The first support frame 3 houses a first protective cover 31, and the second support frame 4 houses a second protective cover 41. The UV lamp 43 is installed within both the first and second protective covers 31 and 41. The arc-shaped first and second support frames 3 and 4 are designed according to the curvature of the cylindrical paper tube 7, respectively surrounding the top and lower sides of the paper tube 7, serving as mounting carriers for the UV lamp 43. This allows the UV lamp 43 to be fixed around the paper tube 7 at a preset irradiation angle. The arc-shaped structure ensures a uniform distance between the UV lamp 43 and the surface of the paper tube 7, avoiding the blind spots caused by uneven distances between the straight support frame and the paper tube 7 surface. It also enhances the structural stability of the support frame itself, reducing the risk of deformation. The first protective cover 31 encloses the UV lamp 43 installed within it, preventing ultraviolet light leakage during operation and protecting operators from UV radiation damage. It also isolates dust, paper scraps, and other impurities within the drying chamber 1, preventing these impurities from adhering to the surface of the UV lamp 43 and affecting its irradiation intensity. Furthermore, it cushions external impacts, protecting the UV lamp 43 from damage. The second protective cover 41 encloses the corresponding UV lamp 43 within the support frame, forming a double protection system. This further prevents ultraviolet light leakage from the lower UV lamp 43, while protecting it from contamination and impacts, ensuring the irradiation intensity and operational stability of the lower UV lamp 43. Together with the first protective cover 31, this forms a complete protective system surrounding the paper tube 7.

[0045] Multiple heat dissipation holes 131 are arranged on the bottom plate 13. The heat dissipation holes 131 are channels for heat to be discharged from the inside of the drying oven 1. They can guide the heat generated by the UV lamp 43 and the small amount of heat released during the curing process of the paper tube 7 to the outside of the drying oven 1, so as to avoid heat accumulation in the bottom area of ​​the oven. They also work with the air flow inside the drying oven 1 (such as natural convection or with the help of an exhaust fan) to form a directional heat dissipation path, accelerate the air circulation inside the oven, maintain the temperature inside the oven within the appropriate range for UV curing, and prevent the bottom plate 13 from deforming due to long-term heat exposure. A first mounting plate 11 is detachably mounted on one end of the drying chamber 1, and a second mounting plate 12 is detachably mounted on the other end. The first mounting plate 11 has a feed inlet 111, and the second mounting plate 12 has a discharge outlet 121. The feed inlet 111 on the first mounting plate 11 is adapted to the specifications of the paper tube 7, serving as a transition channel for the paper tube 7 to enter the drying chamber 1. Its detachable structure allows for the replacement of mounting plates with different feed inlet 111 sizes according to production needs. The discharge outlet 121 on the second mounting plate 12 serves as a channel for the paper tube 7 to exit the drying chamber 1 after curing. Similarly, it supports the replacement of mounting plates with different discharge outlet 121 sizes according to the diameter of the paper tube 7, and the edge of the discharge outlet 121 is equipped with a guide structure, such as an arc chamfer, to guide the paper tube 7 to pass smoothly out and prevent the paper tube 7 from getting stuck at the outlet. The detachable connection between the mounting plate and the drying chamber 1 facilitates the later cleaning of residual curing agent debris or impurities in the channel. The support frame 2 includes a support, a motor, and multiple conveyor rollers. The conveyor rollers are rotatably mounted on the support, and a conveyor belt is wound around the conveyor rollers. The motor drives the conveyor rollers to rotate via chain drive, causing the paper tube 7 to move at a constant speed along its length. Multiple through holes are provided at the bottom of the support frame 2, which can also be created in the conveyor belt. These through holes provide channels for airflow, allowing airflow from the drying chamber 1 to pass through the through holes and flow over the contact area between the paper tube 7 and the support frame 2, accelerating heat exchange. The through holes also serve as channels for impurities to be discharged, allowing debris and dust generated during the curing process to fall onto the base plate 13 under gravity or airflow, preventing accumulation on the surface of the support frame 2. Simultaneously, the through holes reduce the weight of the support frame 2, lowering the load on its drive components and reducing energy consumption. 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 paper tube curing device, characterized in that: The device includes a drying chamber (1), inside which a base plate (13) is installed. One end of the drying chamber (1) has an inlet (111) for threading paper tubes (7), and the other end has an outlet (121) for threading paper tubes (7). A support frame (2) is installed on the base plate (13) for placing and driving the paper tubes (7) to move along their length. One end of the paper tube (7) passes through the inlet (111), is placed on the support frame (2), and exits through the outlet (121). The support frame (2) has supports on both sides... Each is provided with a first support frame (3) and a second support frame (4) to surround the paper tube (7). The first support frame (3) is located above the second support frame (4). Multiple UV lamps (43) for curing the paper tube (7) are arranged in both the first support frame (3) and the second support frame (4). A first adjustment component (5) is connected to the first support frame (3), and a second adjustment component (6) is connected to the second support frame (4). Both the first adjustment component (5) and the second adjustment component (6) are installed in the drying oven (1).

2. The paper tube curing device according to claim 1, characterized in that: The first adjustment assembly (5) includes a first support rod (51) installed on one side wall of the drying chamber (1) and a second support rod (52) disposed on the other side wall of the drying chamber (1). A first adapter (511) is installed on the top of the first support rod (51), and a second adapter (521) is installed on the top of the second support rod (52). A first connecting rod (53) connects the first adapter (511) and the second adapter (521). A third adapter is symmetrically installed on the first connecting rod (53). The third adapter (531) is threadedly connected to a first screw (532). One end of the first screw (532) is equipped with a first handwheel (533), and the other end is threadedly connected to the third adapter (531). A first action rod (54) extends out of the third adapter (531) and is connected to the first support frame (3). A first locking nut is threadedly connected to the end of the first screw (532) away from the first handwheel (533).

3. The paper tube curing device according to claim 2, characterized in that: The second adjustment assembly (6) includes a third support rod (61) installed on one side of the base plate (13) and a fourth support rod (62) disposed on the other side of the base plate (13). A sixth adapter (611) is installed on the top of the third support rod (61), and a fourth adapter (621) is installed on the top of the fourth support rod (62). A second connecting rod (63) is connected between the sixth adapter (611) and the fourth adapter (621). The first connecting rod (63) is located above the paper tube (7), and the second connecting rod (63) is located below the paper tube (7). Above the second connecting rod (63), a fifth adapter (631) is symmetrically installed on the second connecting rod (63). A second screw (632) is threadedly connected to the fifth adapter (631). A second handwheel (633) is installed at one end of the second screw (632), and the other end is threadedly connected to the fifth adapter (631). A second action rod (64) extends out of the fifth adapter (631) and is connected to the second support frame (4). A second locking nut is threadedly connected to the end of the second screw (632) away from the second handwheel (633).

4. The paper tube curing device according to claim 3, characterized in that: The first support frame (3) has a first base plate (32) installed at both ends, and the first action rod (54) is connected to the first support frame (3) through the first base plate (32). The second support frame (4) has a second base plate (42) installed at both ends, and the second action rod (64) is connected to the second support frame (4) through the second base plate (42).

5. The paper tube curing device according to claim 1, characterized in that: The first support frame (3) and the second support frame (4) are both arc-shaped. The first support frame (3) is provided with a first protective cover (31), and the second support frame (4) is provided with a second protective cover (41). The UV lamp (43) is installed inside the first protective cover (31) and the second protective cover (41).

6. The paper tube curing apparatus according to claim 1, characterized in that: The base plate (13) has a plurality of heat dissipation holes (131) arranged on it.

7. The paper tube curing apparatus according to claim 1, characterized in that: The drying box (1) has a first mounting plate (11) detachably mounted on one end and a second mounting plate (12) detachably mounted on the other end. The first mounting plate (11) has a feed inlet (111) and the second mounting plate (12) has a discharge outlet (121).

8. The paper tube curing apparatus according to claim 1, characterized in that: The bottom of the support frame (2) has multiple through holes.

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