Drying system

Abstract

The embodiment of the invention relates to the technical field of drying equipment, and particularly discloses a drying system which comprises a mounting bracket provided with a containing cavity; the drying roller is arranged in the containing cavity, the drying roller is rotationally connected to the mounting support, a plurality of heating pieces are arranged in the drying roller in a surrounding mode, the heating pieces are relatively fixed to the mounting support, and the heating pieces are used for heating the inner wall of the drying roller; the air bellow assembly is arranged in the containing cavity, the air bellow assembly is connected to the mounting support, the air bellow assembly and the drying roller are arranged at intervals in the radial direction, and a plurality of air outlet gaps are formed in the side, close to the drying roller, of the air bellow assembly; the heating assembly communicates with the air bellow assembly and is used for heating airflow; one end of the fan assembly is connected with the heating assembly, and the other end of the fan assembly is connected with the air bellow assembly; and the drying oven assembly is arranged on the mounting bracket, and a drying channel is arranged on the drying oven assembly. In this way, the embodiment of the invention can improve the drying efficiency of the paper.

Description

Technical Field

[0001] This invention relates to the field of drying equipment technology, and in particular to a drying system. Background Technology

[0002] In digital book printing equipment using water-based inks, a drying system is required to dry the ink after printing on both sides of the paper. The inventors of this application have discovered that existing drying systems typically use infrared lamps to directly heat and dry the paper, resulting in a relatively simple drying method and low drying efficiency. Summary of the Invention

[0003] In view of the above problems, embodiments of the present invention provide a drying system that overcomes or at least partially solves the above problems.

[0004] According to one aspect of this application, a drying system is provided, including a mounting bracket with a receiving cavity; a drying roller disposed within the receiving cavity, the drying roller being rotatably connected to the mounting bracket; paper to be dried being wrapped around at least a portion of the drying roller; a plurality of heating elements being arranged around the drying roller, the plurality of heating elements being relatively fixed to the mounting bracket, the heating elements being used to heat the inner wall of the drying roller; and a bellows assembly disposed within the receiving cavity, the bellows assembly being connected to the mounting bracket, the bellows assembly being radially spaced upward from the drying roller, the bellows assembly being close to the receiving cavity. The drying roller has multiple air outlet gaps on one side; a heating element connected to the air box assembly, the heating element being used to heat the airflow; a fan assembly, one end of the fan assembly being connected to the heating element, the other end of the fan assembly being connected to the air box assembly, the fan assembly driving the airflow toward the heating element, the heated airflow flowing through the air box assembly, and at least partially flowing back to the fan assembly; an oven assembly mounted on the mounting bracket, the oven assembly having a drying channel for drying paper, the paper path of which the paper to be dried flows from the drying channel to the drying roller.

[0005] In one alternative embodiment, the paper to be dried includes a first surface and a second surface arranged in opposite directions; the oven assembly includes a chamber and a plurality of first infrared lamps, the plurality of first infrared lamps being arranged at intervals in the chamber along a vertical direction, the drying channel passing through the chamber along the vertical direction, and the light emitted by the first infrared lamps being directed toward the first surface of the paper to be dried; the first surface of the paper to be dried is partially attached to the outer wall of the drying roller, and the second surface of the paper to be dried is partially directed toward a plurality of air outlet gaps of the air box assembly.

[0006] In one alternative embodiment, the drying system includes a control component connected to the heating element, fan assembly, oven assembly, and multiple heating elements. The control component is equipped with a multi-position control switch, which can be used to turn the heating element, fan assembly, oven assembly, and multiple heating elements on or off. The multi-position control switch includes a first position, a second position, a third position, and a fourth position. The first position can be used to turn on the heating element; the second position can be used to turn on the heating element, oven assembly, and multiple heating elements with a first power; the third position can be used to turn on the heating element, oven assembly, and multiple heating elements with a second power; and the fourth position can be used to turn on the heating element, oven assembly, and multiple heating elements with a third power, where the third power is greater than the second power, and the second power is greater than the first power.

[0007] In one alternative embodiment, the bellows assembly includes a fan-shaped bellows having a receiving space and an air outlet communicating with the receiving space, the receiving space communicating with the heating element, the air outlet being at least partially opposite to the plurality of air outlet gaps, and the air outlet facing the drying roller.

[0008] In one optional embodiment, the fan-shaped wind box is provided with a first air cavity and a second air cavity. The first air cavity is connected to the second air cavity through the plurality of air outlet gaps. The fan-shaped wind box is also provided with a first air outlet and a second air outlet. The first air outlet is connected to the first air cavity, and the second air outlet is connected to the second air cavity. The first air cavity is connected to the heating component. The heating component includes a heating box and a heating tube. The heating box is provided with a mounting cavity and a first opening and a second opening connected to the mounting cavity. The heating tube is disposed in the mounting cavity. The first opening is connected to the first air outlet. The fan assembly includes a first fan and a second fan. The first air outlet of the first fan is connected to the second opening, and the first air inlet of the second fan is connected to the second air outlet. In this embodiment, the first fan drives airflow into the mounting cavity from the second opening. The hot airflow, heated by the heating tube, flows from the first opening to the first air outlet. The hot airflow flows into the first air cavity from the first air outlet. The hot airflow flows out from the air outlet gap and at least partially flows from the second air outlet to the first air inlet of the second fan.

[0009] In one optional embodiment, the number of fan-shaped air boxes is at least two, and the two fan-shaped air boxes are arranged around the drying roller, with adjacent fan-shaped air boxes spaced apart; the number of heating elements is at least two, and the number of heating elements corresponds to the number of fan-shaped air boxes; the fan assembly further includes a third fan and a fourth fan, the second air outlet of the third fan is connected to a second opening on another heating element, and the second air inlet of the fourth fan is connected to a second air outlet of another fan-shaped air box; wherein, the third fan drives airflow from the second opening on another heating element into the mounting cavity on another heating element, the hot airflow heated by the other heating element flows from the first opening on another heating element to the first air outlet on another fan-shaped air box, the hot airflow flows from the first air outlet on another fan-shaped air box into the first air chamber on another fan-shaped air box, the hot airflow flows out from the air outlet gap on another fan-shaped air box, and at least partly flows from the second air outlet on another fan-shaped air box to the second air inlet of the fourth fan.

[0010] In one optional embodiment, the fan-shaped wind box further includes a first partition plate, a second partition plate, a partition side plate, and a plurality of partition bottom plates. The first partition plate, the second partition plate, the partition side plate, and the plurality of partition bottom plates are all disposed within the accommodating space. The first partition plate and the second partition plate are spaced apart axially upwards. The two ends of the plurality of partition bottom plates are respectively connected to the first partition plate and the second partition plate axially upwards. The plurality of partition bottom plates are spaced apart radially from the inner wall of the fan-shaped wind box. The first partition plate, the second partition plate, the partition side plate, and the plurality of partition bottom plates enclose and form the first air cavity. The plurality of partition bottom plates are spaced apart, and the air outlet gap is formed between adjacent partition bottom plates.

[0011] In one optional embodiment, one end of the partition base plate is provided with a first inclined portion that is radially deflected at a first angle, and the other end of the partition base plate is provided with a second inclined portion that is radially deflected at a second angle. The first inclined portion and the second inclined portion on a single partition base plate are arranged opposite to each other. The second inclined portion is also provided with a bent portion. The first inclined portion of one partition base plate and the second inclined portion of another adjacent partition base plate are arranged at an angle and are spaced apart. The first inclined portion of one partition base plate and the bent portion of another adjacent partition base plate are arranged parallel and spaced apart. An air guiding gap is formed between the first inclined portion of one partition base plate and the second inclined portion of another adjacent partition base plate. An air outlet gap is formed between the first inclined portion of one partition base plate and the bent portion of another adjacent partition base plate.

[0012] In one alternative embodiment, the bellows assembly further includes a rotating shaft, a first mounting base, and a second mounting base. The first mounting base is detachably connected to one side of the fan-shaped bellows. One end of the second mounting base is connected to the mounting bracket, and the other end of the second mounting base abuts against the other side of the fan-shaped bellows. One end of the rotating shaft is connected to the first mounting base, and the other end of the rotating shaft is rotatably connected to the mounting bracket. One side of the fan-shaped bellows can rotate relative to the mounting bracket by a preset angle.

[0013] In one alternative embodiment, the drying system includes a first temperature sensor, a second temperature sensor, and a third temperature sensor. The first temperature sensor is disposed on the oven assembly and is used to detect the temperature on the oven assembly. The second temperature sensor is disposed on the air box assembly and is used to detect the temperature inside the air box assembly. The third temperature sensor is mounted on the mounting bracket and is disposed close to the drying roller. The third temperature sensor is used to detect the inner wall temperature of the drying roller.

[0014] The beneficial effects of this invention are as follows: Unlike existing technologies, this invention includes a mounting bracket, a drying roller, a windbox assembly, a heating element, a fan assembly, and an oven assembly. The mounting bracket has a receiving cavity, and the drying roller is disposed within this cavity and rotatably connected to the mounting bracket. At least a portion of the paper to be dried is wrapped around the drying roller. Multiple heating elements are arranged around the drying roller and are relatively fixed to the mounting bracket. These heating elements heat the inner wall of the drying roller. The windbox assembly is disposed within the receiving cavity and connected to the mounting bracket. The windbox assembly and the drying roller are radially spaced upwards. Multiple air outlet gaps are provided on the side of the windbox assembly closest to the drying roller. The heating element is connected to the windbox assembly and is used to heat the airflow. One end of the fan assembly is connected to the heating element, and the other end is connected to the windbox assembly. The fan assembly drives the airflow towards the heating element. The heated airflow flows through the windbox assembly and at least partially returns to the oven. The machine assembly, including the drying oven assembly, is mounted on a mounting bracket. The drying oven assembly has a drying channel for drying paper. The paper to be dried flows from the drying channel to the drying roller. Compared to the existing technology that uses only infrared lamps to directly heat and dry the paper surface, this embodiment allows for the drying of the paper first using the drying channel in the drying oven assembly. Then, multiple heating elements located inside the drying roller heat and dry the surface of the paper that is attached to the drying roller, and the hot airflow from multiple air gaps in the air box assembly heats and dries the surface of the paper that is away from the drying roller. By combining multiple heating modules, different surfaces of the paper can be heated and dried, and the drying efficiency of the paper can be improved. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in specific embodiments of the present invention or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the overall structure of the drying system according to an embodiment of the present invention from an angle. Figure 2 This is another schematic diagram of the overall structure of the drying system according to an embodiment of the present invention; Figure 3 This is a partial structural diagram of the drying system according to an embodiment of the present invention; Figure 4 This is a schematic diagram of another part of the structure of the drying system according to an embodiment of the present invention; Figure 5 This is a side cross-sectional view of the fan-shaped air box of the drying system according to an embodiment of the present invention; Figure 6 This is a partial sectional view of the drying system according to an embodiment of the present invention; Figure 7 This is a schematic diagram of an angle of the fan-shaped air box of the drying system according to an embodiment of the present invention; Figure 8 yes Figure 5 Enlarged schematic diagram of the structure at point A in the middle; Figure 9 This is a schematic diagram of another part of the structure of the drying system according to an embodiment of the present invention from another angle; Figure 10 This is a schematic diagram of another part of the structure of the drying system according to an embodiment of the present invention; Figure 11 This is a schematic diagram of another part of the structure of the drying system according to an embodiment of the present invention; Figure 12 yes Figure 11 Enlarged schematic diagram of the structure at point B; Figure 13 This is a schematic diagram of the overall structure of the heating component of the drying system according to an embodiment of the present invention from an angle. Figure 14 This is a partial structural diagram of the fan assembly of the drying system according to an embodiment of the present invention; Figure 15 This is a partial structural diagram of the oven assembly of the drying system according to an embodiment of the present invention. Detailed Implementation

[0017] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0019] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0020] Please see Figure 1 and Figure 2 The drying system 1000 includes a mounting bracket 10, a drying roller 20, an air box assembly 30, a heating element 40, a fan assembly 50, and an oven assembly 60. The drying roller 20 is rotatably connected to the mounting bracket 10. The air box assembly 30 is mounted on the mounting bracket 10 and is radially spaced from the drying roller 20. The air box assembly 30 is connected to the heating element 40. One end of the fan assembly 50 is connected to the heating element 40, and the other end is connected to the air box assembly 30. The fan assembly 50 drives airflow towards the heating element 40. The heated airflow flows through the air box assembly 30 and at least partially returns to the fan assembly 50. The oven assembly 60 is mounted on the mounting bracket 10 and is used to dry paper. The paper to be dried flows from the oven assembly 60 to the drying roller 20.

[0021] Regarding the aforementioned mounting bracket 10 and drying roller 20, as Figure 1 and Figure 2As shown, the mounting bracket 10 is provided with a receiving cavity 10a, and the drying roller 20 is disposed within the receiving cavity 10a. The drying roller 20 is rotatably connected to the mounting bracket 10, and the paper to be dried is wound around at least a portion of the drying roller 20. The drying roller 20 can be used to guide the paper in a circular, surrounding manner to a preset position, wherein the paper is located on the outer wall of the drying roller 20, and the paper moves, driving the drying roller 20 to rotate through friction. Optionally, the mounting bracket 10 includes a first fixing plate 101 and a second fixing plate 102, the first fixing plate 101 and the second fixing plate 102 are connected to each other and spaced apart from each other, and the receiving cavity 10a is formed between the first fixing plate 101 and the second fixing plate 102. One end of the drying roller 20 is rotatably connected to the first fixing plate 101, and the other end of the drying roller 20 is rotatably connected to the second fixing plate 102.

[0022] It should be noted that: to enable the drying roller 20 to rotate relative to the mounting bracket 10, please refer to the following: Figure 3 The mounting bracket 10 is also provided with a plurality of first rotary bearings 1011 and a plurality of second rotary bearings 1021. The plurality of first rotary bearings 1011 are disposed on the first fixed plate 101, and the plurality of second rotary bearings 1021 are disposed on the second fixed plate 102. The plurality of first rotary bearings 1011 are arranged around one end of the drying roller 20 and are in contact with the outer wall of the drying roller 20. The plurality of second rotary bearings 1021 are arranged around the other end of the drying roller 20 and are in contact with the outer wall of the drying roller 20.

[0023] In some embodiments, a first annular groove 201 is provided at one end of the drying roller 20, and a second annular groove 202 is provided at the other end of the drying roller 20. A plurality of first rotary bearings 1011 abut against the bottom of the first annular groove 201, and a plurality of second rotary bearings 1021 abut against the bottom of the second annular groove 202. The arrangement of the first annular groove 201 and the second annular groove 202 ensures the stability of the rotational movement of the drying roller 20, preventing the drying roller 20 from detaching from the first rotary bearings 1011 and the second rotary bearings 1021 in the axial direction. Optionally, both the first rotary bearings 1011 and the second rotary bearings 1021 are ball bearings. It is understood that, in order to enable the drying roller 20 to rotate relative to the mounting bracket 10, in addition to the above method, other methods can also be used, such as: the two ends of the drying roller 20 in the axial direction are directly rotatably connected to the mounting bracket 10 via bearings.

[0024] In some embodiments, a plurality of heating elements 20a are arranged around the drying roller 20, and the heating elements 20a are fixed relative to the mounting bracket 10. The heating elements 20a are used to heat the inner wall of the drying roller 20. Since the drying roller 20 is used to guide the paper to be conveyed in a circular manner to a preset position, after the heating elements 20a heat the inner wall of the drying roller 20, the heat is transferred to the outer surface of the drying roller 20, thereby achieving heating and drying of the surface of the paper attached to the drying roller 20. It should be noted that the heating principle of the heating elements 20a includes, but is not limited to, resistance heating, infrared radiation heating, electromagnetic induction heating, microwave heating, etc. In some embodiments, the heating element 20a is an infrared lamp tube, which uses infrared radiation to achieve heating. Optionally, the number of heating elements 20a can be 6 or more, and the user can set it according to actual needs. This application does not make a specific limitation.

[0025] It should be noted that: a single heating element 20a is inserted through a support frame (not shown in the figure), one end of the support frame is connected to the first fixing plate 101, and the other end of the support frame is connected to the second fixing plate 102, thereby fixing the single heating element 20a relatively to the mounting bracket 10.

[0026] It should be noted that: due to the different materials and thicknesses of paper, the corresponding heating and drying temperatures will also vary. To ensure that the temperature of the inner wall of the drying roller 20 can be adapted to heating paper of different materials and thicknesses, the user can control the temperature of the inner wall of the drying roller 20 by opening the number of heating elements 20a and adjusting the power of each heating element 20a. For example, if a single heating element 20a can make the temperature of the inner wall of the drying roller 20 reach 20°, the user can open 1, 2, 3, 4, 5, 6 or more heating elements 20a according to the temperature required by different paper materials and thicknesses, and adjust the power of the heating elements 20a accordingly to make the temperature of the inner wall of the drying roller 20 reach 20°, 40°, 60°, 80°, 100°, 120° or greater than 120°.

[0027] It is understood that users can turn on different numbers of heating elements 20a according to their actual needs, and the power of each heating element 20a can be all the same, some the same, or all different. This application does not impose specific limitations on this.

[0028] For the aforementioned bellows assembly 30 and heating assembly 40, such as Figure 1 , Figure 4 and Figure 5As shown, the bellows assembly 30 is disposed in the receiving cavity 10a and connected to the mounting bracket 10. The bellows assembly 30 and the drying roller 20 are arranged radially upwards at intervals. The bellows assembly 30 has multiple air outlet gaps 30a on the side near the drying roller 20. The heating element 40 is connected to the bellows assembly 30 and is used to heat the airflow. The heated airflow flows into the bellows assembly 30 and flows at least partially to the drying roller 20 through the multiple air outlet gaps 30a.

[0029] In some embodiments, the plurality of air outlet gaps 30a are arranged at an inclined angle to the radial direction of the drying roller 20. Thus, the heated airflow flows at an inclined angle from the plurality of air outlet gaps 30a to the outer wall of the drying roller 20. Since the paper is located on the outer wall of the drying roller 20, the heated airflow impacts the paper surface at an inclined angle. Due to the inclined airflow, the impact force is decomposed into a tangential component parallel to the paper surface and a smaller vertical component, resulting in a gentler airflow velocity gradient on the paper surface. This reduces the likelihood of a high airflow velocity in the central area and a low airflow velocity in the surrounding area, thereby reducing uneven temperature distribution on the paper surface and minimizing paper curling, wrinkling, and deformation. It is understood that this application does not specifically limit whether the drying roller 20 feeds the paper clockwise or counterclockwise. The rotation direction of the drying roller 20 and the airflow direction of the air outlet gaps 30a can be the same or opposite. Optionally, the rotation direction of the drying roller 20 and the airflow direction of the air outlet gaps 30a can be opposite.

[0030] In some embodiments, please refer to the following: Figure 5 and Figure 6 The air box assembly 30 includes a fan-shaped air box 301. The fan-shaped air box 301 is provided with a receiving space 301a and an air outlet 301b communicating with the receiving space 301a. The receiving space 301a is connected to the heating element 40. The air outlet 301b is at least partially opposite to a plurality of air outlet gaps 30a and faces the drying roller 20. The airflow heated by the heating element 40 flows into the receiving space 301a and flows out through the plurality of air outlet gaps 30a. At least a portion of the airflow flowing out from the air outlet gaps 30a flows from the air outlet 301b to the drying roller 20 to dry the paper located on the drying roller 20. It is understood that there are at least two fan-shaped air boxes 301, which are arranged around the drying roller 20, with adjacent fan-shaped air boxes 301 spaced apart.

[0031] In some embodiments, when viewed axially upwards, the air outlet 301b is arc-shaped. Since the outer wall of the drying roller 20 is arc-shaped, the arc-shaped arrangement of the air outlet 301b can increase the contact area between the hot airflow flowing out of the air outlet 301b and the outer wall of the drying roller 20, thereby improving the drying efficiency of the paper on the drying roller 20.

[0032] In some embodiments, the fan-shaped wind box 301 is provided with a first air cavity 301aa and a second air cavity 301ab. The first air cavity 301aa is connected to the second air cavity 301ab through multiple air outlet gaps 30a. The fan-shaped wind box 301 is also provided with a first air outlet 301c and a second air outlet 301d. The first air outlet 301c is connected to the first air cavity 301aa, and the second air outlet 301d is connected to the second air cavity 301ab. The first air cavity 301aa is connected to the heating element 40. The hot airflow heated by the heating element 40 flows into the first air cavity 301aa and flows out through the multiple air outlet gaps 30a. The hot airflow flows from the air outlet 301b to the drying roller 20 to dry the paper on the drying roller 20. After contacting the paper surface, the hot airflow flows along the outer circle of the drying roller 20 to the second air cavity 301ab, and then flows to the fan assembly 50 through the second air outlet 301d.

[0033] In some embodiments, please refer to the following: Figure 7 The fan-shaped air box 301 also includes a first partition plate 3011, a second partition plate 3012, a partition side plate 3013, and a plurality of partition bottom plates 3014. The first partition plate 3011, the second partition plate 3012, the partition side plate 3013, and the plurality of partition bottom plates 3014 are all disposed within the accommodating space 301a. The first partition plate 3011 and the second partition plate 3012 are spaced apart along the axial direction. The two ends of the plurality of partition bottom plates 3014 are respectively connected to the first partition plate 3011 and the second partition plate 3012 along the axial direction. The plurality of partition bottom plates 3014 are spaced apart from the inner wall of the fan-shaped air box 301 along the radial direction. The first partition plate 3011, the second partition plate 3012, the partition side plate 3013, and the plurality of partition bottom plates 3014 enclose a first air cavity 301aa. The plurality of partition bottom plates 3014 are spaced apart, and an air outlet gap 30a is formed between adjacent partition bottom plates 3014. The partition side plate 3013 is located between the first air cavity 301aa and the second air cavity 301ab. It can be understood that in other embodiments, the first partition plate 3011 and the second partition plate 3012 can be omitted, thereby, the two ends of the plurality of partition bottom plates 3014 are directly connected to the two inner walls of the fan-shaped air box 301 along the axial direction.

[0034] In some embodiments, please refer to the following: Figure 8One end of the partition base plate 3014 is provided with a first inclined portion 30141 that is radially deflected by a first angle, and the other end of the partition base plate 3014 is provided with a second inclined portion 30142 that is radially deflected by a second angle. The first inclined portion 30141 and the second inclined portion 30142 on a single partition base plate 3014 are arranged opposite to each other. The second inclined portion 30142 is also provided with a bent portion 30143. The first inclined portion 30141 of one partition base plate 3014 and the second inclined portion 30142 of another adjacent partition base plate 3014 are... The first inclined portion 30141 of one partition base plate 3014 and the bent portion 30143 of another adjacent partition base plate 3014 are arranged at an angle and spaced apart. An air guide gap 30b is formed between the first inclined portion 30141 of one partition base plate 3014 and the second inclined portion 30142 of another adjacent partition base plate 3014, and an air outlet gap 30a is formed between the first inclined portion 30141 of one partition base plate 3014 and the bent portion 30143 of another adjacent partition base plate 3014. The air guide gap 30b guides the hot airflow flowing into the first air cavity 301aa, directing at least a portion of the hot airflow to the air outlet gap 30a, through which the hot airflow flows to the outer wall of the drying roller 20. It should be noted that the specific values ​​of the first and second angles are not specifically limited in this application; users can set them according to actual needs.

[0035] In some embodiments, please refer to the following: Figure 9 and Figure 10 The bellows assembly 30 also includes a rotating shaft 302, a first mounting base 303, and a second mounting base 304. The first mounting base 303 is detachably connected to one side of the fan-shaped bellows 301. One end of the second mounting base 304 is connected to the mounting bracket 10, and the other end of the second mounting base 304 abuts against the other side of the fan-shaped bellows 301. One end of the rotating shaft 302 is connected to the first mounting base 303, and the other end of the rotating shaft 302 is rotatably connected to the mounting bracket 10. One side of the fan-shaped bellows 301 can rotate relative to the mounting bracket 10 at a preset angle. This configuration allows the other side of the fan-shaped bellows 301 to be lifted, which facilitates the passage of paper on the drying roller 20 and also facilitates the cleaning of impurities in the gap between the fan-shaped bellows 301 and the drying roller 20. It should be noted that in order to enable one side of the fan-shaped bellows 301 to rotate relative to the mounting bracket 10, the rotating shaft 302 and the first mounting base 303 form a rotating assembly. There are two rotating assemblies, which are respectively arranged at both ends of the fan-shaped bellows 301 along the axial direction.

[0036] In some embodiments, please refer to the following: Figure 11 and Figure 12A connecting hole 301e is provided on one side of the fan-shaped air box 301. A connector (not shown) and a connecting groove 303a are provided on the first mounting base 303. The connecting groove 303a extends radially upward, and at least a portion of the connecting groove 303a is positioned opposite to the connecting hole 301e. The connector passes through the connecting groove 303a and is connected to the connecting hole 301e. The first mounting base 303 is connected to the connecting hole 301e through the connector passing through the connecting groove 303a, thereby achieving the connection between the first mounting base 303 and the fan-shaped air box 301. It should be noted that since the connecting groove 303a extends radially upward, the user can adjust the position of the connector within the connecting groove 303a to correspondingly move the position of the fan-shaped air box 301 radially upward. This allows adjustment of the radially upward spacing between the fan-shaped air box 301 and the drying roller 20. Optionally, the connector can be a screw, rivet, or other connecting component.

[0037] In some embodiments, there are multiple connecting holes 301e, which are arranged radially upwards at intervals. The connecting groove 303a can be moved radially upwards to a preset position to connect one of the connecting holes 301e.

[0038] In some embodiments, the bellows assembly 30 further includes a first connecting pipe 305 and a second temperature sensor 306. One end of the first connecting pipe 305 is connected to a first air outlet 301c, and the other end of the first connecting pipe 305 is connected to a heating element 40. A portion of the second temperature sensor 306 is located at the first air outlet 301c. Hot airflow within the heating element 40 can be transmitted through the first connecting pipe 305 to the first air outlet 301c and flows into the first air cavity 301aa through the first air outlet 301c. The second temperature sensor 306 can detect the temperature of the airflow entering the first air cavity 301aa.

[0039] In some embodiments, such as Figure 9 and Figure 13 As shown, the heating component 40 includes a heating chamber 401 and a heating tube 402. The heating chamber 401 is provided with a mounting cavity 401a and a first opening 401b and a second opening 401c communicating with the mounting cavity 401a. The heating tube 402 is disposed in the mounting cavity 401a, and the first opening 401b communicates with a first air outlet 301c. External airflow can enter the heating chamber 401 through the second opening 401c. The heating tube 402 can generate heat to heat the external airflow entering the heating chamber 401. The heated airflow flows through the first opening 401b into the first air outlet 301c, and then through the first air outlet 301c into the first air cavity 301aa.

[0040] In some embodiments, the heating element 40 includes a heavy-duty connector 403 that connects to the heating element 402. The heavy-duty connector 403 can be used to connect other external electrical devices.

[0041] In some embodiments, the number of heating elements 40 is at least two, and the number of heating elements 40 corresponds to the number of fan-shaped bellows 301. It is understood that in this embodiment, a single heating element 40 provides hot airflow to a single fan-shaped bellows 301. In other embodiments, a single heating element 40 may also be connected to two fan-shaped bellows 301 to provide hot airflow to two fan-shaped bellows 301 respectively.

[0042] For the aforementioned wind turbine component 50, such as Figure 1 , Figure 2 and Figure 14 As shown, one end of the fan assembly 50 is connected to the heating element 40, and the other end of the fan assembly 50 is connected to the air box assembly 30. The fan assembly 50 drives the airflow to the heating element 40, and the heated airflow flows through the air box assembly 30 and at least partially flows back to the fan assembly 50.

[0043] In some embodiments, the fan assembly 50 includes a housing 51, a first fan 52, and a second fan 53. Both the first fan 52 and the second fan 53 are disposed inside the housing 51. The first air outlet 521 of the first fan 52 is connected to the second opening 401c, and the first air inlet 531 of the second fan 53 is connected to the second air outlet 301d. The first fan 52 drives the airflow from the second opening 401c into the mounting cavity 401a. The hot airflow, heated by the heating tube 402, flows from the first opening 401b to the first air outlet 301c. The hot airflow flows from the first air outlet 301c into the first air chamber. The hot airflow flows out from the air outlet gap 30a and at least partially flows from the second air outlet 301d to the first air inlet 531 of the second fan 53. The third air outlet 532 of the second fan 53 extends out of the housing 51. It should be noted that the second air outlet 301d on the fan-shaped air box 301 is connected to an external second fan 53 to draw away the humid and hot gas and create a slight negative pressure in the containing space 301a to prevent the humid and hot gas from leaking out, so as not to affect the ambient temperature around the printing workshop and to prevent it from affecting the ink drying of the printhead on the printing carriage. Optionally, the first fan 52 is connected to the heating element 40 through the second connecting pipe 501, and the second fan 53 is connected to the air box assembly 30 through the third connecting pipe 502.

[0044] In some embodiments, when there are two fan-shaped air boxes 301 and two heating components 40, one of the fan-shaped air boxes 301 can utilize the first fan 52 and the second fan 53 to allow airflow to flow from the first fan 52 into the fan-shaped air box 301 and back to the second fan 53, preventing the leakage of hot and humid gas. For the other fan-shaped air box 301, to prevent the leakage of hot and humid gas, the fan assembly 50 also includes a third fan 54 and a fourth fan 55. Both the third fan 54 and the fourth fan 55 are housed within the casing 51. The second air outlet 541 of the third fan 54 connects to the second opening 401c on the other heating component 40, and the second air inlet 551 of the fourth fan 55 connects to the second air outlet 301d of the other fan-shaped air box 301. The third fan 54 drives airflow from the second opening on the other heating component 40. 401c flows into the mounting cavity 401a on another heating element 40. The hot airflow heated by the other heating element 40 flows from the first opening 401b on the other heating element 40 to the first air outlet 301c on the other fan-shaped air box 301. The hot airflow flows from the first air outlet 301c on the other fan-shaped air box 301 into the first air chamber on the other fan-shaped air box 301. The hot airflow flows out from the air outlet gap 30a on the other fan-shaped air box 301 and at least partially flows from the second air outlet 301d on the other fan-shaped air box 301 to the second air inlet 551 of the fourth fan 55. The second air outlet 301d on the other fan-shaped air box 301 is connected to the fourth fan 55. The fourth air outlet 552 of the fourth fan 55 extends out of the casing 51 to use the fourth fan 55 to remove the hot and humid gas and create a slight negative pressure in the containing space 301a, thereby preventing the hot and humid gas from leaking out. Optionally, the third fan 54 is connected to another heating component 40 via the fourth connecting pipe 503, and the fourth fan 55 is connected to another air box component 30 via the fifth connecting pipe 504.

[0045] For the aforementioned oven assembly 60, such as Figure 2 and Figure 6 As shown, the oven assembly 60 is mounted on the mounting bracket 10. The oven assembly 60 has a drying channel 60a for drying paper. The paper to be dried flows from the drying channel 60a to the drying roller 20. Therefore, before entering the drying roller 20, the paper can be heated and dried using the drying channel 60a on the oven assembly 60, thereby improving the heating and drying efficiency of the paper. It should be noted that the paper to be dried includes a first surface and a second surface arranged opposite to each other. Both the first and second surfaces can be used for ink printing; therefore, both the first and second surfaces need to be heated and dried.

[0046] In some embodiments, please refer to the following: Figure 15The drying oven assembly 60 includes a chamber 601 and a plurality of first infrared lamps 602. The plurality of first infrared lamps 602 are arranged vertically at intervals within the chamber 601. A drying channel 60a extends vertically through the chamber 601. The light emitted by the first infrared lamps 602 is directed towards the first surface of the paper to be dried, thereby achieving heating and drying of the first surface of the paper. During this process, the light emitted by the first infrared lamps 602 is perpendicular to the surface of the paper. It is understood that the number of first infrared lamps 602 can be three or more, and this application does not impose a specific limitation. In some embodiments, the drying channel 60a can also extend in a direction inclined to the vertical direction, thereby allowing the paper to flow along the inclined direction of the drying channel 60a. During this process, the light emitted by the first infrared lamps 602 forms an inclined angle with the outer surface of the paper. It should be noted that: Please refer to... Figure 6 During the process of the paper flowing from the drying channel 60a to the drying roller 20, the mounting bracket 10 is also equipped with a conveying roller 10b. The conveying roller 10b is rotatably connected to the mounting bracket 10. The part of the conveying roller 10b that supplies paper is wound around the paper to improve the paper conveying efficiency and conveying stability.

[0047] In some embodiments, the first surface portion of the paper to be dried is attached to the outer wall of the drying roller 20, and the second surface portion of the paper to be dried faces the multiple air outlet gaps 30a of the air box assembly 30. Since the first surface portion of the paper to be dried is attached to the outer wall of the drying roller 20, the heating temperature of the inner wall of the drying roller 20 can be conducted to the outer wall of the drying roller 20, thereby achieving heating and drying of the first surface of the paper. The hot airflow heated by the heating component 40 flows out from the multiple air outlet gaps 30a, and the outflowing hot airflow flows from the air outlet 301b to the drying roller 20, thereby heating and drying the second surface of the paper on the drying roller 20, and thus achieving heating and drying of the two different surfaces of the paper.

[0048] In some embodiments, the drying system further includes a control component (not shown) connected to the heating component 40, the fan component 50, the oven component 60, and a plurality of heating elements 20a. The control component can turn the heating component 40, the fan component 50, the oven component 60, and the plurality of heating elements 20a on or off.

[0049] In some embodiments, the control component is equipped with a multi-position control switch, which can be used to turn the heating element 40, fan assembly 50, oven assembly 60, and multiple heating elements 20a on or off. The multi-position control switch includes a first position, a second position, a third position, and a fourth position. The first position can be used to turn on the heating element 40; the second position can be used to turn on the heating element 40, oven assembly 60, and multiple heating elements 20a with a first power; the third position can be used to turn on the heating element 40, oven assembly 60, and multiple heating elements 20a with a second power; and the fourth position can be used to turn on the heating element 40, oven assembly 60, and multiple heating elements 20a with a third power. The third power is greater than the second power, and the second power is greater than the first power. Users can select different positions for heating and drying according to the material and thickness of the paper to achieve high efficiency and energy saving.

[0050] It should be noted that the heating element 40, the oven assembly 60, and the heating element 20a can all generate different or the same temperatures. Furthermore, the specific values ​​of the first power, second power, and third power are not specifically limited; users can set them according to actual needs. For example, the temperature of the hot airflow heated by the heating element 40 can be defined as 80°C, the heating temperature generated by the oven assembly 60 can be 50°C, multiple heating elements 20a with the first power can raise the inner wall temperature of the drying roller 20 to 80°C, multiple heating elements 20a with the second power can raise the inner wall temperature of the drying roller 20 to 100°C, and multiple heating elements 20a with the third power can raise the inner wall temperature of the drying roller 20 to 100°C. The wall heating temperature is 120°C. Therefore, when the multi-position control switch is turned to the first position, the heating element 40 is turned on. The two heating elements 40 respectively deliver 80°C hot airflow into the two fan-shaped air boxes 301, so as to heat and dry the paper by utilizing the air outlet gap 30a on the fan-shaped air boxes 301. When the multi-position control switch is turned to the second position, the heating element 40, the drying oven assembly 60, and the multiple first-power heating elements 20a are turned on. On the basis of the two fan-shaped air boxes 301 heating and drying the paper at a heating temperature of 80°C, the drying oven assembly 60 can apply a heating temperature of 50°C to the paper. The multiple first-power heating elements 20a can make the drying roller 20 The inner wall heating temperature is 80°C. Multiple heating elements 20a with first power can apply a heating temperature of 80°C to the paper. When the multi-position control switch is turned to the third position, the heating element 40, the drying oven assembly 60, and the multiple heating elements 20a with second power are turned on. Based on the two fan-shaped air boxes 301 heating and drying the paper at 80°C, the drying oven assembly 60 can apply a heating temperature of 50°C to the paper. The multiple heating elements 20a with second power can make the inner wall heating temperature of the drying roller 20 reach 100°C, thus applying a heating temperature of 100°C to the paper. When the multi-position control switch is turned to the fourth position, the opening... The heating element 40, the drying oven assembly 60, and multiple third-power heating elements 20a, based on the two fan-shaped air boxes 301 heating and drying the paper at a temperature of 80°C, the drying oven assembly 60 can apply a heating temperature of 50°C to the paper, and the multiple third-power heating elements 20a can make the inner wall of the drying roller 20 heat to 120°C, thus applying a heating temperature of 120°C to the paper. Therefore, according to the order of heating temperature strength, the first level is low, the second level is medium, the third level is high, and the fourth level is strong. Users can select different levels for drying according to the material and thickness of the paper.

[0051] In some embodiments, such as Figure 1 and Figure 6As shown, the drying system includes a first temperature sensor 603 and a third temperature sensor 20b. The first temperature sensor 603 is mounted on the drying oven assembly 60 and is used to detect the temperature of the drying oven assembly 60. The third temperature sensor 20b is mounted on the mounting bracket 10 and is positioned close to the drying roller 20. The third temperature sensor 20b is used to detect the temperature of the drying roller 20. Users can monitor the temperature of the drying oven assembly 60 and the drying roller 20 in a timely manner based on the temperature data from the temperature sensors located at different positions, thus preventing overheating or underheating.

[0052] In some embodiments, the control component further includes a display screen, which can be used to display temperature data from the first temperature sensor 603, the second temperature sensor 306, and the third temperature sensor 20b. The display screen can also be used to display the opening or closing status of the drying roller 20, the rotation direction of the drying roller 20, the opening or closing status of the heating element 40, the opening or closing status of the fan assembly 50, and the opening or closing status of the oven assembly 60, etc.

[0053] In this embodiment of the invention, a mounting bracket 10, a drying roller 20, a wind box assembly 30, a heating assembly 40, a fan assembly 50, and an oven assembly 60 are provided. The mounting bracket 10 has a receiving cavity 10a. A drying roller 20 is disposed within the receiving cavity 10a and rotatably connected to the mounting bracket 10. At least a portion of the paper to be dried is wrapped around the drying roller 20. Multiple heating elements 20a are arranged around the drying roller 20 and are relatively fixed to the mounting bracket 10. The heating elements 20a are used to heat the inner wall of the drying roller 20. A bellows assembly 30 is disposed within the receiving cavity 10a and connected to the mounting bracket 10. The bellows assembly 30 and the drying roller 20 are radially spaced upwards. Multiple air outlet gaps 30a are provided on the side of the bellows assembly 30 closest to the drying roller 20. A heating element 40 is connected to the bellows assembly 30 and is used to heat the airflow. One end of a fan assembly 50 is connected to the heating element 40, and the other end is connected to the bellows assembly 30. The fan assembly 50 drives the airflow towards the heating element 40. The heated airflow then flows through… The air box assembly 30, and at least part of the airflow is returned to the fan assembly 50. The oven assembly 60 is mounted on the mounting bracket 10. The oven assembly 60 is provided with a drying channel 60a for drying paper. The paper to be dried flows from the drying channel 60a to the drying roller 20. Compared with the prior art, which uses only infrared lamps to directly heat and dry the paper surface, in this embodiment, the paper can be dried first using the drying channel 60a in the oven assembly 60. Then, multiple heating elements 20a located in the drying roller 20 are used to heat and dry one surface of the paper attached to the drying roller 20. The hot airflow from multiple air outlet gaps 30a of the air box assembly 30 is used to heat and dry the surface of the paper away from the drying roller 20. By combining multiple heating modules, different surfaces on the paper can be heated and dried, and the drying efficiency of the paper can be improved.

[0054] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A drying system, characterized in that, include: The mounting bracket is equipped with a receiving cavity; A drying roller is disposed within the receiving cavity and is rotatably connected to the mounting bracket. At least a portion of the paper to be dried is wrapped around the drying roller. Multiple heating elements are arranged around the drying roller and are fixed relative to the mounting bracket. The heating elements are used to heat the inner wall of the drying roller. A bellows assembly is disposed within the receiving cavity. The bellows assembly is connected to the mounting bracket. The bellows assembly and the drying roller are arranged radially upwards at intervals. The bellows assembly has multiple air outlet gaps on the side near the drying roller. A heating element, connected to the air box assembly, is used to heat the airflow; A fan assembly, one end of which is connected to the heating element and the other end of which is connected to the air box assembly. The fan assembly drives airflow toward the heating element, and the heated airflow flows through the air box assembly and at least partially flows back to the fan assembly. An oven assembly is mounted on the mounting bracket. The oven assembly is provided with a drying channel for drying paper. The paper to be dried flows from the drying channel to the drying roller.

2. The drying system according to claim 1, characterized in that, The paper to be dried includes a first surface and a second surface arranged in opposite directions; The oven assembly includes a chamber and a plurality of first infrared lamps, which are arranged vertically at intervals in the chamber. The drying channel passes through the chamber along the vertical direction, and the light emitted by the first infrared lamps is directed toward the first surface of the paper to be dried. The first surface portion of the paper to be dried is attached to the outer wall of the drying roller, and the second surface portion of the paper to be dried faces the multiple air outlet gaps of the air box assembly.

3. The drying system according to claim 1, characterized in that, The drying system includes a control component connected to the heating element, fan assembly, oven assembly, and multiple heating elements. The control component is equipped with a multi-position control switch, which can be used to turn the heating element, fan assembly, oven assembly, and multiple heating elements on or off. The multi-position control switch includes a first position, a second position, a third position, and a fourth position. The first position can be used to turn on the heating element; the second position can be used to turn on the heating element, oven assembly, and multiple heating elements with a first power; the third position can be used to turn on the heating element, oven assembly, and multiple heating elements with a second power; and the fourth position can be used to turn on the heating element, oven assembly, and multiple heating elements with a third power, where the third power is greater than the second power, and the second power is greater than the first power.

4. The drying system according to claim 1, characterized in that, The air box assembly includes a fan-shaped air box, which has a receiving space and an air outlet communicating with the receiving space. The receiving space is connected to the heating element. The air outlet is at least partially opposite to the plurality of air outlet gaps and faces the drying roller.

5. The drying system according to claim 4, characterized in that, The fan-shaped wind box is provided with a first air cavity and a second air cavity. The first air cavity is connected to the second air cavity through the plurality of air outlet gaps. The fan-shaped wind box is also provided with a first air outlet and a second air outlet. The first air outlet is connected to the first air cavity, and the second air outlet is connected to the second air cavity. The first air cavity is connected to the heating component. The heating component includes a heating box and a heating tube. The heating box is provided with an installation cavity and a first opening and a second opening communicating with the installation cavity. The heating tube is disposed in the installation cavity, and the first opening is communicating with the first air outlet. The fan assembly includes a first fan and a second fan, wherein a first air outlet of the first fan is connected to the second opening, and a first air inlet of the second fan is connected to the second air outlet. The first fan drives airflow into the mounting cavity through the second opening. The hot airflow, heated by the heating element, flows from the first opening to the first air outlet. The hot airflow flows into the first air cavity from the first air outlet and out through the air outlet gap. At least part of the hot airflow flows from the second air outlet to the first air inlet of the second fan.

6. The drying system according to claim 5, characterized in that, The number of fan-shaped air boxes is at least two, and the two fan-shaped air boxes are arranged around the drying roller, with adjacent fan-shaped air boxes spaced apart; The number of heating elements is at least two, and the number of heating elements corresponds to the number of fan-shaped bellows; The fan assembly further includes a third fan and a fourth fan, wherein the second air outlet of the third fan is connected to a second opening on another of the heating components, and the second air inlet of the fourth fan is connected to the second air outlet of another of the fan-shaped air boxes; The third fan drives airflow from the second opening on the other heating element into the mounting cavity on the other heating element. The hot airflow, heated by the other heating element, flows from the first opening on the other heating element to the first air outlet on the other fan-shaped wind box. The hot airflow flows from the first air outlet on the other fan-shaped wind box into the first air cavity on the other fan-shaped wind box. The hot airflow flows out from the air outlet gap on the other fan-shaped wind box and at least partly flows from the second air outlet on the other fan-shaped wind box to the second air inlet of the fourth fan.

7. The drying system according to claim 4, characterized in that, The fan-shaped wind box further includes a first partition plate, a second partition plate, a partition side plate, and multiple partition bottom plates. The first partition plate, the second partition plate, the partition side plate, and the multiple partition bottom plates are all disposed within the accommodating space. The first partition plate and the second partition plate are spaced apart along the axial direction. The two ends of the multiple partition bottom plates are respectively connected to the first partition plate and the second partition plate along the axial direction. The multiple partition bottom plates are spaced apart from the inner wall of the fan-shaped wind box along the radial direction. The first partition plate, the second partition plate, the partition side plate, and the multiple partition bottom plates enclose and form the first air cavity. The multiple partition bottom plates are spaced apart from each other, and the air outlet gap is formed between adjacent partition bottom plates.

8. The drying system according to claim 7, characterized in that, One end of the partition base plate is provided with a first inclined portion that deflects radially at a first angle, and the other end of the partition base plate is provided with a second inclined portion that deflects radially at a second angle. The first inclined portion and the second inclined portion on a single partition base plate are arranged opposite to each other. A bending portion is also provided on the second inclined portion. The first inclined portion of one partition base plate and the second inclined portion of another adjacent partition base plate are arranged at an angle and are spaced apart. The first inclined portion of one partition base plate and the bending portion of another adjacent partition base plate are arranged parallel and spaced apart. An air guiding gap is formed between the first inclined portion of one partition base plate and the second inclined portion of another adjacent partition base plate. An air outlet gap is formed between the first inclined portion of one partition base plate and the bending portion of another adjacent partition base plate.

9. The drying system according to claim 4, characterized in that, The bellows assembly further includes a rotating shaft, a first mounting base, and a second mounting base. The first mounting base is detachably connected to one side of the fan-shaped bellows. One end of the second mounting base is connected to the mounting bracket, and the other end of the second mounting base abuts against the other side of the fan-shaped bellows. One end of the rotating shaft is connected to the first mounting base, and the other end of the rotating shaft is rotatably connected to the mounting bracket. One side of the fan-shaped bellows can rotate relative to the mounting bracket by a preset angle.

10. The drying system according to claim 1, characterized in that, The drying system includes a first temperature sensor, a second temperature sensor, and a third temperature sensor. The first temperature sensor is disposed on the oven assembly and is used to detect the temperature on the oven assembly. The second temperature sensor is disposed on the air box assembly and is used to detect the temperature inside the air box assembly. The third temperature sensor is mounted on the mounting bracket and is disposed close to the drying roller. The third temperature sensor is used to detect the inner wall temperature of the drying roller.

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