Drying equipment

Abstract

The utility model discloses drying equipment which comprises a plurality of drying devices, the plurality of drying devices are stacked, and each drying device comprises a lower drying unit and an upper drying unit which are arranged in a stacked mode. The lower drying unit comprises a lower drying furnace and a lower door opening structure, the lower door opening structure is connected to the lower drying furnace, the upper drying unit comprises an upper drying furnace and an upper door opening structure, and the upper door opening structure is connected to the upper drying furnace; the drying device has a door opening state and a door closing state, in the door opening state, the lower door opening structure can move to the upper door opening structure to open a furnace opening of the lower drying furnace, or the upper door opening structure can move to the lower door opening structure to open the furnace opening of the upper drying furnace; in the door closing state, the lower door opening structure closes the furnace opening of the lower drying furnace, and the upper door opening structure closes the furnace opening of the upper drying furnace. Through the arrangement, the problem that the door opening mode of an existing drying furnace is single is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying, in particular to a drying device. Background Art

[0002] During the battery production process, the batteries need to be dried, and this drying process is generally achieved through a drying oven. The main ways to open the door of a drying oven include up and down opening, side opening, and stretching opening. Current drying ovens generally use the up and down door opening method. However, the current up and down door opening method of drying ovens can usually only open the door in one direction, such as only opening the door downward or upward. The door opening method is relatively simple, and it is impossible to take into account multiple door opening methods in a double-layer or multi-layer drying oven. As a result, the drying oven is not space-saving enough, resulting in a relatively limited application scenario and use environment of the drying oven. Utility Model Content

[0003] The utility model mainly provides a drying device to solve the problem that the current drying furnace has a relatively single door opening method.

[0004] To achieve the above object, the present invention provides a drying device, comprising a plurality of drying devices stacked in layers, each of the drying devices comprising a lower drying unit and an upper drying unit in a stacked arrangement;

[0005] The lower drying unit includes a lower drying furnace and a lower door structure, and the lower door structure is connected to the lower drying furnace. The upper drying unit includes an upper drying furnace and an upper door structure, and the upper door structure is connected to the upper drying furnace.

[0006] The drying device has an open door state and a closed door state. In the open door state, the lower door structure can be moved to the upper door structure to open the furnace mouth of the lower drying furnace, or the upper door structure can be moved to the lower door structure to open the furnace mouth of the upper drying furnace; in the closed door state, the lower door structure closes the furnace mouth of the lower drying furnace, and the upper door structure closes the furnace mouth of the upper drying furnace.

[0007] In some embodiments of the present invention, the lower door structure includes a lower driving module and a lower door, the lower driving module is connected to the lower drying furnace, the lower door is rotatably connected to the lower driving module, and the lower driving module is used to drive the lower door to open or close the furnace mouth of the lower drying furnace.

[0008] In some embodiments of the present invention, there are two lower driving modules, which are respectively arranged on both sides of the furnace opening of the lower drying furnace, and are used to jointly drive the lower door to move.

[0009] In some embodiments of the present invention, the lower door opening structure further comprises a lower synchronous motion component, one end of the lower synchronous motion component is transmission-connected to one of the two lower drive modules, and the other end is transmission-connected to the other of the two lower drive modules;

[0010] Wherein, the lower synchronous motion component is configured as a connecting rod transmission structure; or, the lower synchronous motion component is configured as a gear transmission structure.

[0011] In some embodiments of the present invention, the lower driving module includes a lower pushing component and a lower driving component; wherein,

[0012] The lower pushing assembly is slidably connected to the side wall of the lower drying furnace, the lower driving assembly is arranged on the lower pushing assembly, the lower door is rotatably connected to the lower driving assembly, the lower pushing assembly is used to push the lower door away from or close to the furnace opening of the lower drying furnace through the lower driving assembly, and the lower driving assembly is used to drive the lower door to lift or flip down.

[0013] In some embodiments of the present invention, the lower driving assembly includes a lower driving member, a lower connecting arm and a lower swing arm; wherein,

[0014] The driving end of the lower driving member is connected to one end of the lower connecting arm, the other end of the lower connecting arm is rotatably connected to the lower door, and the lower connecting arm is provided with a bending portion, and the bending portion is rotatably connected to the lower pushing assembly;

[0015] One end of the lower swing arm is rotationally connected to the lower door, the other end is rotationally connected to the lower pushing assembly, and is also transmission-connected to the lower synchronous motion assembly. The lower swing arm is arranged close to the upper door opening structure.

[0016] In some embodiments of the present invention, the upper door structure includes two upper drive modules and an upper door. The two upper drive modules are respectively arranged on both sides of the furnace opening of the upper drying furnace and are both connected to the upper door. The two upper drive modules are used to jointly drive the upper door to move to open or close the furnace opening of the upper drying furnace.

[0017] In some embodiments of the present invention, the upper door structure further comprises an upper synchronous motion component, one end of the upper synchronous motion component is transmission-connected to one of the two upper drive modules, and the other end is transmission-connected to the other of the two upper drive modules;

[0018] Wherein, the upper synchronous motion component is configured as a connecting rod transmission structure; or, the upper synchronous motion component is configured as a gear transmission structure.

[0019] In some embodiments of the present invention, the upper driving module includes an upper pushing component and an upper driving component; wherein,

[0020] The upper pushing assembly is slidably connected to the side wall of the upper drying furnace, the upper driving assembly is arranged on the upper pushing assembly, the upper door is rotatably connected to the upper driving assembly, the upper pushing assembly is used to push the upper door away from or close to the furnace opening of the upper drying furnace through the upper driving assembly, and the upper driving assembly is used to drive the upper door to lift or flip up.

[0021] In some embodiments of the present invention, the upper drive assembly includes an upper drive member, an upper connecting arm, and an upper swing arm; wherein,

[0022] The driving end of the upper driving member is connected to one end of the upper connecting arm, the other end of the upper connecting arm is rotatably connected to the upper door, and the upper connecting arm is provided with a turning portion, and the turning portion is rotatably connected to the upper pushing assembly;

[0023] One end of the upper swing arm is rotationally connected to the upper door, the other end is rotationally connected to the upper pushing assembly, and is also transmission-connected to the upper synchronous motion assembly. The upper swing arm is arranged close to the lower door opening structure.

[0024] The beneficial effect of the present invention is that, different from the prior art, the drying equipment disclosed in the present invention realizes that the lower door opens upward and the upper door opens downward through the lower-opening door structure and the upper-opening door structure, that is, when the door is open, the lower-opening door structure and the upper-opening door structure can overlap with each other. Such a setting can not only enrich the door opening methods of the drying equipment, so that the drying equipment can be used in different scenes and environments, but also has the effect of not occupying external space and saving site space, thereby greatly improving the performance of the drying equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 This is a structural diagram of an embodiment of the drying equipment of the present utility model;

[0027] Figure 2 This is a front view structural diagram of an embodiment of the drying device of the present utility model;

[0028] Figure 3This is a structural diagram of an embodiment of the drying device of the present utility model in a closed state;

[0029] Figure 4 This is a structural diagram of an embodiment of the drying device of the present utility model in an open door state;

[0030] Figure 5 This is a structural diagram of an embodiment of the bottom-opening door structure of the present utility model;

[0031] Figure 6 This is a schematic diagram of the planar structure of an embodiment of the bottom-opening door structure of the present utility model;

[0032] Figure 7 This is a structural diagram of an embodiment of the top-opening door structure of the present utility model;

[0033] Figure 8 This is a schematic plan view of the structure of an upper door according to an embodiment of the present invention.

[0034] Description of Figure Numbers:

[0035] 10. Drying device; 1. Lower drying unit; 11. Lower drying furnace; 12. Lower door structure; 121. Lower door; 122. Lower synchronous motion assembly; 123. Lower pushing assembly; 1231. Lower slide plate; 1232. Lower pushing cylinder; 124. Lower driving assembly; 1241. Lower driving member; 1242. Lower connecting arm; 1242a. Bending portion; 1243. Lower swing arm; 2. Upper drying unit; 21. Upper drying furnace; 22. Upper door structure; 221. Upper door; 222. Upper synchronous motion assembly; 223. Upper pushing assembly; 2231. Upper slide plate; 2232. Upper pushing cylinder; 224. Upper driving assembly; 2241. Upper driving member; 2242. Upper connecting arm; 2242a. Turning portion; 2243. Upper swing arm.

[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0039] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0040] The utility model proposes a drying device, referring to Figures 1 to 3 The drying equipment includes a plurality of drying devices 10, which are stacked in layers. Each drying device 10 includes a lower drying unit 1 and an upper drying unit 2 that are stacked. The lower drying unit 1 includes a lower drying furnace 11 and a lower door structure 12, and the lower door structure 12 is connected to the lower drying furnace 11. The upper drying unit 2 includes an upper drying furnace 21 and an upper door structure 22, and the upper door structure 22 is connected to the upper drying furnace 21. The drying device 10 has an open state and a closed state. In the open state, the lower door structure 12 can move to the upper door structure 22 to open the furnace opening of the lower drying furnace 11, or the upper door structure 22 can move to the lower door structure 12 to open the furnace opening of the upper drying furnace 21; in the closed state, the lower door structure 12 closes the furnace opening of the lower drying furnace 11, and the upper door structure 22 closes the furnace opening of the upper drying furnace 21.

[0041] Based on the above-mentioned scheme, the lower door 121 is opened upward and the upper door 221 is opened downward through the lower door structure 12 and the upper door structure 22. That is, when the door is open, the lower door structure 12 and the upper door structure 22 can overlap with each other. Such a setting can not only enrich the door opening methods of the drying equipment, so that the drying equipment can be used in different scenes and environments, but also has the effect of not occupying external space and saving site space, thereby greatly improving the performance of the drying equipment.

[0042] Reference Figures 1 to 6The lower door structure 12 includes a lower driving module and a lower door 121. The lower driving module is connected to the lower drying furnace 11. The lower door 121 is rotatably connected to the lower driving module. The lower driving module is used to drive the lower door 121 to open or close the furnace mouth of the lower drying furnace 11.

[0043] There are two lower drive modules, one on each side of the oven opening of the lower drying oven 11, which together drive the lower door 121. This arrangement allows for stable movement of the lower door 121, helping to improve the reliability of opening or closing the lower door 121.

[0044] The lower door structure 12 also includes a lower synchronous motion assembly 122, one end of which is in driving connection with one of the two lower drive modules, and the other end of which is in driving connection with the other of the two lower drive modules. This lower synchronous motion assembly 122 allows the two lower drive modules to drive the lower door 121 to move, thereby smoothly and reliably opening and closing the oven opening of the lower drying oven 11, improving operational comfort and smoothness.

[0045] Continue to refer to Figures 1 to 6 The lower driving module includes a lower pushing assembly 123 and a lower driving assembly 124. The lower pushing assembly 123 is slidably connected to the side wall of the lower drying furnace 11, and the lower driving assembly 124 is disposed on the lower pushing assembly 123. The lower door 121 is rotatably connected to the lower driving assembly 124. The lower pushing assembly 123 is used to push the lower door 121 away from or toward the furnace opening of the lower drying furnace 11 through the lower driving assembly 124, and the lower driving assembly 124 is used to drive the lower door 121 to rise or flip down.

[0046] The lower push assembly 123 includes a lower slide 1231 and a lower push cylinder 1232. The lower slide 1231 is slidably connected to the side wall of the lower drying furnace 11 via a sliding shaft. The lower push cylinder 1232 is fixedly connected to the side wall of the lower drying furnace 11. The lower push cylinder 1232 is connected to the lower slide 1231 and is used to push the lower slide 1231 to slide. The lower drive assembly 124 is mounted on the lower slide 1231. The lower push cylinder 1232 drives the lower drive assembly 124 to move through the lower slide 1231, so that the lower drive assembly 124 drives the lower door 121 to move.

[0047] The lower driving assembly 124 includes a lower driving member 1241, a lower connecting arm 1242, and a lower swing arm 1243. The driving end of the lower driving member 1241 is connected to one end of the lower connecting arm 1242, and the other end of the lower connecting arm 1242 is rotatably connected to the lower door 121. The lower connecting arm 1242 is provided with a bent portion 1242a, which is rotatably connected to the lower pushing assembly 123. The lower swing arm 1243 has one end rotatably connected to the lower door 121 and the other end rotatably connected to the lower pushing assembly 123. The lower swing arm 1243 is also transmission-connected to the lower synchronous motion assembly 122. The lower swing arm 1243 is disposed near the upper door structure 22.

[0048] The process of opening the lower door 121: the lower pushing cylinder 1232 works and drives the lower slide 1231 to move toward the furnace opening of the lower drying furnace 11, and the lower slide 1231 drives the lower driving assembly 124 to move, thereby driving the lower door 121 away from the furnace opening of the lower drying furnace 11 to initially open the furnace opening of the lower drying furnace 11, and then the lower connecting arm 1242 is driven to rotate by the lower driving component 1241, and the lower connecting arm 1242 rotates and drives the lower door 121 to move toward the direction of the upper drying furnace 21, and the lower door 121 overlaps with the upper opening door structure 22, thereby realizing opening the lower drying furnace 11.

[0049] The lower driving member 1241 may be a cylinder or a linear motor.

[0050] In some embodiments, the lower synchronous motion component 122 is configured as a connecting rod transmission structure, such as a connecting rod transmission structure including a synchronization shaft and a connecting rod structure, wherein the synchronization shaft is arranged across the lower drying furnace 11, and the synchronization shaft is used to connect the two lower drive modules. One end of the connecting rod structure is transmission-connected to one end of the lower swing arm 1243 away from the lower door 121, and the other end is transmission-connected to the synchronization shaft. In the process of the lower connecting arm 1242 swinging and driving the lower door 121 to move, the lower swing arm 1243 swings along with the lower door 121. During the swinging process, the lower swing arm 1243 drives the connecting rod structure to move and causes the synchronization shaft to rotate, thereby jointly driving the lower door 121 to open. It is understandable that the connecting rod structure can adopt the connecting rod structure in the prior art, which is not limited here.

[0051] In other embodiments, the lower synchronous motion assembly 122 is configured as a gear transmission structure, such as a gear transmission structure including a synchronization shaft and gears, with gears disposed at both ends of the synchronization shaft. The end of the lower swing arm 1243, distal from the lower door 121, is also provided with a gear that meshes with both ends of the synchronization shaft. As the lower connecting arm 1242 swings and drives the lower door 121 to move, the lower swing arm 1243 swings with the lower door 121. During the swinging process, the lower swing arm 1243 drives the synchronization shaft to rotate via the gears, thereby jointly driving the lower door 121 upward.

[0052] In the embodiment of the present application, the lower synchronous motion component 122 can be configured as a connecting rod transmission structure. This is only an example and does not limit the structure of the lower synchronous motion component 122.

[0053] Reference Figures 1 to 3 , reference Figures 7 and 8 The upper door structure 22 includes two upper drive modules and an upper door 221. The two upper drive modules are respectively arranged on either side of the furnace opening of the upper drying furnace 21 and are both connected to the upper door 221. The two upper drive modules are used to jointly drive the upper door 221 to move, thereby opening or closing the furnace opening of the upper drying furnace 21. This arrangement can stably drive the movement of the upper door 221, which helps to improve the reliability of opening or closing the upper door 221.

[0054] The upper door structure 22 further includes an upper synchronous motion assembly 222, one end of which is in transmission connection with one of the two upper drive modules, and the other end of which is in transmission connection with the other of the two upper drive modules. The upper synchronous motion assembly 222 is configured as a connecting rod transmission structure; alternatively, the upper synchronous motion assembly 222 is configured as a gear transmission structure.

[0055] The upper driving module includes an upper pushing component 223 and an upper driving component 224, wherein the upper pushing component 223 is slidably connected to the side wall of the upper drying furnace 21, the upper driving component 224 is arranged on the upper pushing component 223, the upper door 221 is rotatably connected to the upper driving component 224, the upper pushing component 223 is used to push the upper door 221 away from or close to the furnace mouth of the upper drying furnace 21 through the upper driving component 224, and the upper driving component 224 is used to drive the upper door 221 to lift or flip up.

[0056] The upper push assembly 223 includes an upper slide 2231 and an upper push cylinder 2232. The upper slide 2231 is slidably connected to the side wall of the upper drying furnace 21 via a sliding shaft. The upper push cylinder 2232 is fixedly connected to the side wall of the upper drying furnace 21. The upper push cylinder 2232 is connected to the upper slide 2231 and is used to push the upper slide 2231 to slide. The upper drive assembly 224 is mounted on the upper slide 2231. The upper push cylinder 2232 drives the upper drive assembly 224 to move through the upper slide 2231, so that the upper drive assembly 224 drives the upper door 221 to move.

[0057] Reference Figures 1 to 3 , reference Figures 7 and 8The upper drive assembly 224 includes an upper drive member 2241, an upper connecting arm 2242, and an upper swing arm 2243. The driving end of the upper drive member 2241 is connected to one end of the upper connecting arm 2242, the other end of which is rotatably connected to the upper door 221. The upper connecting arm 2242 is provided with a transition portion 2242a, which is rotatably connected to the upper push assembly 223. The upper swing arm 2243 has one end rotatably connected to the upper door 221 and the other end rotatably connected to the upper push assembly 223. It is also in transmission connection with the upper synchronous motion assembly 222. The upper swing arm 2243 is positioned near the lower door opening structure 12.

[0058] The process of opening the upper door 221: the upper pushing cylinder 2232 works and drives the upper slide 2231 to move toward the furnace opening of the upper drying furnace 21, and the upper slide 2231 drives the upper driving assembly 224 to move, thereby driving the upper door 221 away from the furnace opening of the upper drying furnace 21 to initially open the furnace opening of the upper drying furnace 21, and then the upper connecting arm 2242 is driven to rotate by the upper driving member 2241, and the upper connecting arm 2242 rotates and drives the upper door 221 to move toward the upper drying furnace 21, and the upper door 221 overlaps with the upper opening door structure 22, thereby realizing opening the upper drying furnace 21.

[0059] The upper driving member 2241 may be a cylinder or a linear motor.

[0060] In some embodiments, the upper synchronous motion component 222 is configured as a connecting rod transmission structure, such as a connecting rod transmission structure including a synchronization shaft and a connecting rod structure, wherein the synchronization shaft is arranged across the upper drying furnace 21, and the synchronization shaft is used to connect the two upper drive modules. One end of the connecting rod structure is transmission-connected to one end of the upper swing arm 2243 away from the upper door 221, and the other end is transmission-connected to the synchronization shaft. In the process of the upper connecting arm 2242 swinging and driving the upper door 221 to move, the upper swing arm 2243 swings along with the upper door 221. During the swinging process, the upper swing arm 2243 drives the connecting rod structure to move and causes the synchronization shaft to rotate, thereby jointly driving the upper door 221 to open. It is understandable that the connecting rod structure can adopt the connecting rod structure in the prior art, which is not limited here.

[0061] In other embodiments, the upper synchronous motion assembly 222 is configured as a gear transmission structure, such as a gear transmission structure including a synchronization shaft and gears, with gears disposed at both ends of the synchronization shaft. The upper swing arm 2243, further away from the upper door 221, is also provided with a gear that meshes with both ends of the synchronization shaft. As the upper connecting arm 2242 swings and drives the upper door 221 to move, the upper swing arm 2243 swings with the upper door 221. During the swinging process, the upper swing arm 2243 drives the synchronization shaft to rotate via the gears, thereby jointly driving the upper door 221 to open.

[0062] In the embodiment of the present application, the upper synchronous motion component 222 can be configured as a gear transmission structure. This is only an example and does not limit the structure of the upper synchronous motion component 222.

[0063] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by utilizing the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A drying device, characterized in that: The drying equipment includes a plurality of drying devices, the plurality of drying devices are stacked, and each of the drying devices includes a lower drying unit and an upper drying unit in a stacked arrangement; The lower drying unit includes a lower drying furnace and a lower door structure, and the lower door structure is connected to the lower drying furnace. The upper drying unit includes an upper drying furnace and an upper door structure, and the upper door structure is connected to the upper drying furnace. The drying device has an open door state and a closed door state. In the open door state, the lower door structure can be moved to the upper door structure to open the furnace mouth of the lower drying furnace, or the upper door structure can be moved to the lower door structure to open the furnace mouth of the upper drying furnace; in the closed door state, the lower door structure closes the furnace mouth of the lower drying furnace, and the upper door structure closes the furnace mouth of the upper drying furnace.

2. The drying device according to claim 1, characterized in that The lower door structure includes a lower driving module and a lower door. The lower driving module is connected to the lower drying furnace. The lower door is rotatably connected to the lower driving module. The lower driving module is used to drive the lower door to open or close the furnace opening of the lower drying furnace.

3. The drying device according to claim 2, characterized in that The number of the lower driving modules includes two, and the two lower driving modules are respectively arranged on both sides of the furnace opening of the lower drying furnace, and the two lower driving modules are used to jointly drive the lower door to move.

4. The drying device according to claim 3, characterized in that The lower door opening structure further includes a lower synchronous motion component, one end of which is transmission-connected to one of the two lower drive modules, and the other end of which is transmission-connected to the other of the two lower drive modules; Wherein, the lower synchronous motion component is configured as a connecting rod transmission structure; or, the lower synchronous motion component is configured as a gear transmission structure.

5. The drying device according to claim 4, characterized in that The lower driving module includes a lower pushing component and a lower driving component; wherein, The lower pushing assembly is slidably connected to the side wall of the lower drying furnace, the lower driving assembly is arranged on the lower pushing assembly, the lower door is rotatably connected to the lower driving assembly, the lower pushing assembly is used to push the lower door away from or close to the furnace opening of the lower drying furnace through the lower driving assembly, and the lower driving assembly is used to drive the lower door to lift or flip down.

6. The drying device according to claim 5, characterized in that The lower driving assembly includes a lower driving member, a lower connecting arm and a lower swing arm; wherein, The driving end of the lower driving member is connected to one end of the lower connecting arm, the other end of the lower connecting arm is rotatably connected to the lower door, and the lower connecting arm is provided with a bending portion, and the bending portion is rotatably connected to the lower pushing assembly; One end of the lower swing arm is rotationally connected to the lower door, the other end is rotationally connected to the lower pushing assembly, and is also transmission-connected to the lower synchronous motion assembly. The lower swing arm is arranged close to the upper door opening structure.

7. The drying device according to claim 1, wherein The upper door structure includes two upper drive modules and an upper door. The two upper drive modules are respectively arranged on both sides of the furnace opening of the upper drying furnace and are both connected to the upper door. The two upper drive modules are used to jointly drive the upper door to move to open or close the furnace opening of the upper drying furnace.

8. The drying device according to claim 7, characterized in that The upper door structure further comprises an upper synchronous motion component, one end of which is transmission-connected to one of the two upper drive modules, and the other end of which is transmission-connected to the other of the two upper drive modules; Wherein, the upper synchronous motion component is configured as a connecting rod transmission structure; or, the upper synchronous motion component is configured as a gear transmission structure.

9. The drying device according to claim 7, characterized in that The upper driving module includes an upper pushing component and an upper driving component; wherein, The upper pushing assembly is slidably connected to the side wall of the upper drying furnace, the upper driving assembly is arranged on the upper pushing assembly, the upper door is rotatably connected to the upper driving assembly, the upper pushing assembly is used to push the upper door away from or close to the furnace opening of the upper drying furnace through the upper driving assembly, and the upper driving assembly is used to drive the upper door to lift or flip up.

10. The drying device according to claim 9, characterized in that The upper driving assembly includes an upper driving member, an upper connecting arm and an upper swing arm; wherein, The driving end of the upper driving member is connected to one end of the upper connecting arm, the other end of the upper connecting arm is rotatably connected to the upper door, and the upper connecting arm is provided with a turning portion, and the turning portion is rotatably connected to the upper pushing assembly; One end of the upper swing arm is rotationally connected to the upper door, the other end is rotationally connected to the upper pushing assembly, and is also transmission-connected to the upper synchronous motion assembly. The upper swing arm is arranged close to the lower door opening structure.

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