Drying device and assembly line

By designing a rotating and inclined cylinder structure and agitator, all-round drying of zirconia balls is achieved, and the problem of low drying efficiency of zirconia balls in the prior art is solved, which improves the drying efficiency and shortens the drying time.

CN223192011UActive Publication Date: 2025-08-05XINWEI ELECTRONIC TECH (YIYANG) CO LTD
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Patent Information

Application Number
CN202421672181.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-15
Publication Date
2025-08-05
Estimated Expiration
2034-07-15

AI Technical Summary

Technical Problem

In the prior art, the drying efficiency of zirconia balls is low, especially the bottom wet zirconia balls are difficult to be effectively dried, resulting in too long drying.

Method used

A drying device including a bracket, a drying mechanism, a driving mechanism and a heating mechanism is designed. Through the rotation and inclined movement of the first cylinder and the second cylinder, the material to be dried is rolled and contacted with hot air in all directions. At the same time, the material is stirred with an agitator to realize automatic discharge and shorten the drying process.

Benefits of technology

The drying efficiency of zirconia balls is improved, the drying time is shortened, the overall drying efficiency is improved, and manual intervention is reduced through automated operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model discloses a drying device and an assembly line. The drying device comprises a support, a drying mechanism, a driving mechanism and a heating mechanism. The drying mechanism comprises a first barrel body, a second barrel body and a cover body, the first barrel body is rotationally connected to the support, the second barrel body is rotationally arranged in the first barrel body in a sleeved mode, the second barrel body is used for containing materials to be dried, and the cover body covers the first barrel body and the second barrel body; the driving mechanism comprises a first driving assembly and a second driving assembly, the first driving assembly is arranged on the support and connected with the first barrel, the second driving assembly is arranged on the first barrel, and at least part of the second driving assembly extends into the first barrel to be connected with the second barrel; the heating mechanism comprises a heater and a first pipeline, one end of the first pipeline communicates with the heater, and the other end of the first pipeline communicates with the second barrel. In this way, after the second barrel rotates, the to-be-dried materials can be driven to be in the rolling state and make contact with hot air in all directions, and therefore the drying efficiency is improved.
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Description

Technical Field

[0001] The embodiments of the utility model relate to the technical field of drying, and in particular to a drying device and an assembly line. Background Art

[0002] Multilayer ceramic capacitors are essential basic components in the electronics industry. In the preparation process of multilayer ceramic capacitors, a grinding device is usually used to grind the ceramic powder into particles of a certain size in order to make the ceramic powder in the slurry reach a certain particle size. The grinding device mainly includes a rod pin and a zirconia ball. The high-speed rotation of the rod pin drives the zirconia ball to apply impact and shear forces to the ceramic powder in the slurry, so that the ceramic powder is broken up and the ceramic powder reaches a certain particle size. Among them, the zirconia ball will be doped with the solvent (anhydrous ethanol and toluene) in the slurry after use. Therefore, the zirconia ball needs to be dried so that it can be reused.

[0003] Currently, zirconia balls are typically dried manually, specifically by placing several wet zirconia balls on a tray and placing them in a drying device for high-temperature drying. During this process, the wet zirconia balls remain stationary within the tray, and the hot air from the drying device only reaches the wet zirconia balls on the top layer of the tray, leaving the wet zirconia balls on the bottom layer unable to reach them. The wet zirconia balls on the bottom layer must rely on their prolonged evaporation to achieve drying, resulting in prolonged drying times and low drying efficiency. Utility Model Content

[0004] The main technical problem solved by the embodiments of the utility model is to provide a drying device and an assembly line, which can improve the drying efficiency.

[0005] To solve the above technical problems, a technical solution adopted in an embodiment of the present invention is: providing a drying device, including a bracket, a drying mechanism, a driving mechanism and a heating mechanism; the drying mechanism includes a first cylinder, a second cylinder and a cover, the first cylinder is rotatably connected to the bracket, the second cylinder is rotatably sleeved in the first cylinder, the first cylinder and the second cylinder are spaced apart, the second cylinder is used to accommodate the material to be dried, and the cover is covered by the first cylinder and the second cylinder; the driving mechanism includes a first driving assembly and a second driving assembly, the first driving assembly is arranged on the bracket, the first driving assembly is connected to the first cylinder, the first driving assembly is used to drive the first cylinder to rotate around the bracket, the second driving assembly is arranged on the first cylinder, the second driving assembly at least partially extends into the first cylinder and is connected to the second cylinder, and the second driving assembly is used to drive the second cylinder to rotate around the first cylinder; the heating mechanism includes a heater and a first pipe, the heater is arranged on the bracket, one end of the first pipe is connected to the heater, and the other end of the pipe is connected to the second cylinder.

[0006] Optionally, the drying mechanism further includes a stirrer, which is rotatably connected to the second cylinder and is used to stir the material to be dried.

[0007] Optionally, the first cylinder and the second cylinder are arranged obliquely relative to the bracket.

[0008] Optionally, the cover body includes a fixed part and a flip part, the fixed part is fixed to the first cylinder and the second cylinder, the flip part is rotatably connected to the fixed part, and the flip part is used to automatically flip open the opening of the second cylinder when the first cylinder rotates and tilts downward, and automatically flip close the opening of the second cylinder when the first cylinder rotates and tilts upward.

[0009] Optionally, the first drive assembly includes a first motor and a coupling, the first motor and the coupling are both arranged on the bracket, one end of the coupling is connected to the output shaft of the first motor, and the other end of the coupling is connected to the first cylinder.

[0010] Optionally, the second drive assembly includes a second motor, a bearing seat, a first transmission wheel, a second transmission wheel and a transmission belt, the second motor is fixed outside the first cylinder, the bearing seat is fixed inside the first cylinder, one end of the bearing seat is connected to the second cylinder, the other end of the bearing seat extends from the first cylinder, the first transmission wheel is rotatably connected to the other end of the bearing seat, the second transmission wheel is connected to the output shaft of the second motor, and the transmission belt is wound around the first transmission wheel and the second transmission wheel.

[0011] Optionally, it also includes a recovery mechanism, which includes an exhaust gas purifier, a second pipe and a third pipe. The exhaust gas purifier is arranged on the bracket, and the exhaust gas purifier is provided with an air inlet and an air outlet. One end of the second pipe is connected to the air inlet, and the other end of the second pipe is connected to the second cylinder. One end of the third pipe is connected to the air outlet, and the other end of the third pipe is connected to the outside world.

[0012] Optionally, it also includes a wind speed measuring mechanism, which includes a pressure differential sensor, a processor and a display. The pressure differential sensor is arranged at the air outlet, and the processor and the display are arranged on the bracket. The pressure differential sensor and the display are both electrically connected to the processor. The pressure differential sensor is used to measure the pressure difference between the air outlet and the atmospheric pressure. The processor is used to collect data from the pressure differential sensor and calculate the wind speed. The display is used to display the wind speed calculated by the processor.

[0013] Optionally, the wind speed measuring mechanism further includes an alarm, which is disposed on the bracket and electrically connected to the pressure differential sensor. The alarm is configured to sound an alarm after the pressure differential sensor measures that the air pressure at the air outlet is greater than or equal to the atmospheric pressure.

[0014] In order to solve the above technical problems, another technical solution adopted in the embodiment of the present utility model is: to provide an assembly line including the above drying device.

[0015] The beneficial effects of the embodiments of the present utility model are as follows: different from the prior art, the embodiments of the present utility model provide a drying device, including a bracket, a drying mechanism, a driving mechanism and a heating mechanism; the drying mechanism includes a first cylinder, a second cylinder and a cover, the first cylinder is rotatably connected to the bracket, the second cylinder is rotatably sleeved in the first cylinder, the first cylinder and the second cylinder are spaced apart, the second cylinder is used to accommodate the material to be dried, and the cover is covered on the first cylinder and the second cylinder; the driving mechanism includes a first driving assembly and a second driving assembly, the first driving assembly is arranged on the bracket, the first driving assembly is connected to the first cylinder, the first driving assembly is used to drive the first cylinder to rotate around the bracket, the second driving assembly is arranged on the first cylinder, the second driving assembly at least partially extends into the first cylinder and is connected to the second cylinder, and the second driving assembly is used to drive the second cylinder to rotate around the first cylinder; the heating mechanism includes a heater and a first pipe, the heater is arranged on the bracket, one end of the first pipe is connected to the heater, and the other end of the pipe is connected to the second cylinder. Through the above method, not only can the material to be dried be put into a tumbling state and exposed to hot air in all directions after the second cylinder rotates, thereby improving the drying efficiency, but the second cylinder can also be tilted after the first cylinder rotates, so that the second cylinder can automatically unload the material, thereby shortening the time of the drying process and further improving the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the overall structure of the drying device provided by the embodiment of the utility model Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall structure of the drying device provided by the embodiment of the utility model Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the overall structure of the drying device provided by the embodiment of the utility model Figure 3 .

[0020] Description of reference numerals:

[0021] 100 drying device;

[0022] 1 bracket, 2 drying mechanism, 21 first cylinder, 22 second cylinder, 23 cover, 231 fixing part, 232 flip cover part, 24 agitator, 3 driving mechanism, 31 first driving assembly, 311 first motor, 312 coupling, 32 second driving assembly, 321 second motor, 322 bearing seat, 323 first transmission wheel, 324 second transmission wheel, 325 transmission belt, 4 heating mechanism, 41 heater, 5 recovery mechanism, 51 exhaust gas purifier, 6 wind speed measuring mechanism, 7 electric control box. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with 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 there can be one or more centered elements therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "inside", "outside", "vertical", "horizontal", etc. used in this specification indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this utility model belongs. The terms used in this specification and in the description of this utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used in this specification includes any and all combinations of one or more of the relevant listed items.

[0025] Multilayer ceramic capacitors are essential basic components in the electronics industry. In the preparation process of multilayer ceramic capacitors, a grinding device is usually used to grind the ceramic powder into particles of a certain size in order to make the ceramic powder in the slurry reach a certain particle size. The grinding device mainly includes a rod pin and a zirconia ball. The high-speed rotation of the rod pin drives the zirconia ball to apply impact and shear forces to the ceramic powder in the slurry, so that the ceramic powder is broken up and the ceramic powder reaches a certain particle size. Among them, the zirconia ball will be doped with the solvent (anhydrous ethanol and toluene) in the slurry after use. Therefore, the zirconia ball needs to be dried so that it can be reused.

[0026] Currently, zirconia balls are typically dried manually, specifically by placing several wet zirconia balls on a tray and placing them in a drying device for high-temperature drying. During this process, the wet zirconia balls remain stationary within the tray, and the hot air from the drying device only reaches the wet zirconia balls on the top layer of the tray, leaving the wet zirconia balls on the bottom layer unable to reach them. The wet zirconia balls on the bottom layer must rely on their prolonged evaporation to achieve drying, resulting in prolonged drying times and low drying efficiency.

[0027] In view of this, the present invention provides an embodiment of a drying device 100, which can not only drive the material to be dried located in the second cylinder 22 into a rolling state and contact the hot air in all directions after the second cylinder 22 rotates, thereby improving the drying efficiency, but also can drive the second cylinder 22 to tilt after the first cylinder 21 rotates, so that the dried material located in the second cylinder 22 is automatically unloaded, thereby shortening the time of the drying process and further improving the drying efficiency.

[0028] For the above drying device 100, please refer to Figures 1 to 3 The drying device 100 includes a bracket 1, a drying mechanism 2, a driving mechanism 3 and a heating mechanism 4; the drying mechanism 2 includes a first cylinder 21, a second cylinder 22 and a cover 23, the first cylinder 21 is rotatably connected to the bracket 1, the second cylinder 22 is rotatably sleeved in the first cylinder 21, the first cylinder 21 and the second cylinder 22 are spaced apart, the second cylinder 22 is used to accommodate the material to be dried, and the cover 23 is covered on the first cylinder 21 and the second cylinder 22; the driving mechanism 3 includes a first driving assembly 31 and a second driving assembly 32, the first driving assembly 31 is arranged at The bracket 1 has a first drive assembly 31 connected to the first cylinder 21, the first drive assembly 31 is used to drive the first cylinder 21 to rotate around the bracket 1, and a second drive assembly 32 is provided on the first cylinder 21, the second drive assembly 32 at least partially extends into the first cylinder 21 and is connected to the second cylinder 22, and the second drive assembly 32 is used to drive the second cylinder 22 to rotate around the first cylinder 21; the heating mechanism 4 includes a heater 41 and a first pipe, the heater 41 is provided on the bracket 1, one end of the first pipe is connected to the heater 41, and the other end of the pipe is connected to the second cylinder 22. The first cylinder 21 and the second cylinder 22 are spaced apart, which not only enables the first cylinder 21 to protect the second cylinder 22, but also enables the first cylinder 21 to keep the second cylinder 22 warm, that is, after the second cylinder 22 inputs hot air, the first cylinder 21 isolates the second cylinder 22 from being exposed to the outside world, so that the second cylinder 22 reduces heat loss and keeps it warm.

[0029] For the above drying device 100, in order to further improve the drying efficiency, please refer to Figures 1 to 3 The drying mechanism 2 also includes an agitator 24, which is rotatably connected to the second cylinder 22 and is used to stir the material to be dried. The agitator 24 remains stationary in the second cylinder 22. Since the agitator 24 is rotatably connected to the second cylinder 22, when the second cylinder 22 rotates, the second cylinder 22 and the agitator 24 rotate relative to each other. In this manner, the agitator 24 plays a stirring role, which can make the material to be dried more evenly exposed to the hot air, thereby accelerating the drying speed. In addition, the stirring effect can effectively prevent the material to be dried from clumping or sticking during the drying process, so that the material to be dried maintains good contact with the hot air, thereby helping to improve the drying efficiency.

[0030] For the above drying device 100, in order to further improve the drying efficiency, please refer to Figures 1 to 3 The first barrel 21 and the second barrel 22 are arranged obliquely relative to the bracket 1. In this manner, when the material to be dried is tumbled up and down under the impetus of the agitator 24, the height difference of the material to be dried is increased, so that the height difference of the material to be dried tumbling up and down is larger, thereby increasing the contact area and contact time between the material to be dried and the hot air, thereby helping to improve the drying efficiency.

[0031] For the drying mechanism 2 above, see Figures 1 to 3 The cover 23 includes a fixed portion 231 and a flip portion 232. The fixed portion 231 is fixed to the first barrel 21 and the second barrel 22, and the flip portion 232 is rotatably connected to the fixed portion 231. The flip portion 232 is configured to automatically flip open the opening of the second barrel 22 when the first barrel 21 rotates downward, and automatically flip close the opening of the second barrel 22 when the first barrel 21 rotates upward. In this manner, the opening of the second barrel 22 can be automatically opened or closed, reducing manual operations, shortening the drying process, and helping to improve drying efficiency.

[0032] For the above drive mechanism 3, see Figures 1 to 3 The first drive assembly 31 includes a first motor 311 and a coupling 312. The first motor 311 and the coupling 312 are both arranged on the bracket 1. One end of the coupling 312 is connected to the output shaft of the first motor 311, and the other end of the coupling 312 is connected to the first cylinder 21.

[0033] For the above drive mechanism 3, see Figures 1 to 3 The second drive assembly 32 includes a second motor 321, a bearing seat 322, a first transmission wheel 323, a second transmission wheel 324 and a transmission belt 325. The second motor 321 is fixed outside the first cylinder 21, the bearing seat 322 is fixed inside the first cylinder 21, one end of the bearing seat 322 is connected to the second cylinder 22, and the other end of the bearing seat 322 extends from the first cylinder 21. The first transmission wheel 323 is rotatably connected to the other end of the bearing seat 322, the second transmission wheel 324 is connected to the output shaft of the second motor 321, and the transmission belt 325 is wound around the first transmission wheel 323 and the second transmission wheel 324.

[0034] Regarding the drying device 100, considering that the material to be dried is likely to generate waste gas during the drying process, in order to avoid direct discharge of the waste gas generated by the material to be dried during the drying process, please refer to Figures 1 to 3, further comprising a recovery mechanism 5, which includes an exhaust gas purifier 51, a second pipe, and a third pipe. The exhaust gas purifier 51 is disposed on the bracket 1 and is provided with an air inlet and an air outlet. One end of the second pipe is connected to the air inlet, and the other end of the second pipe is connected to the second cylinder 22. One end of the third pipe is connected to the air outlet, and the other end of the third pipe is connected to the outside world. Through the above-mentioned method, the exhaust gas generated during the drying process of the material to be dried can be purified and discharged, thereby reducing pollution to the environment and reducing harm to the human body.

[0035] For the above drying device 100, in order to monitor the exhaust condition of the exhaust purifier 51 in real time and avoid exhaust failure of the exhaust purifier 51 due to failure of the exhaust purifier 51, thereby avoiding explosion caused by excessive internal pressure of the exhaust purifier 51, please refer to Figures 1 to 3 , and also includes a wind speed measuring mechanism 6, which includes a pressure differential sensor, a processor and a display. The pressure differential sensor is arranged at the air outlet, and the processor and the display are arranged on the bracket 1. The pressure differential sensor and the display are both electrically connected to the processor. The pressure differential sensor is used to measure the pressure difference between the air outlet and the atmospheric pressure. The processor is used to collect data from the pressure differential sensor and calculate the wind speed. The display is used to display the wind speed calculated by the processor.

[0036] In the drying device 100, to promptly detect excessive internal pressure in the exhaust purifier 51 due to a malfunction, the wind speed measurement mechanism 6 also includes an alarm. The alarm is mounted on the bracket 1 and electrically connected to the differential pressure sensor. The alarm is configured to sound an alarm when the differential pressure sensor measures that the air pressure at the air outlet is greater than or equal to atmospheric pressure. The alarm includes, but is not limited to, an audible alarm, an optical alarm, a vibration alarm, a text alarm, or an intelligent alarm.

[0037] For the above drying device 100, in order to facilitate the operation of the drying device 100, please refer to Figures 1 to 3 , also includes an electrical control box 7, the drying mechanism 2, the driving mechanism 3, the heating mechanism 4, the recovery mechanism 5 and the wind speed measuring mechanism 6 are all electrically connected to the electrical control box 7.

[0038] The embodiment of the present utility model provides a drying device 100, including a bracket 1, a drying mechanism 2, a driving mechanism 3 and a heating mechanism 4; the drying mechanism 2 includes a first cylinder 21, a second cylinder 22 and a cover 23, the first cylinder 21 is rotatably connected to the bracket 1, the second cylinder 22 is rotatably sleeved in the first cylinder 21, the first cylinder 21 and the second cylinder 22 are spaced apart, the second cylinder 22 is used to accommodate the material to be dried, and the cover 23 is covered on the first cylinder 21 and the second cylinder 22; the driving mechanism 3 includes a first driving assembly 31 and a second driving assembly 32, the first driving assembly 31 ... The component 31 is arranged on the bracket 1, the first drive component 31 is connected to the first cylinder 21, and the first drive component 31 is used to drive the first cylinder 21 to rotate around the bracket 1. The second drive component 32 is arranged on the first cylinder 21, and the second drive component 32 at least partially extends into the first cylinder 21 and is connected to the second cylinder 22, and the second drive component 32 is used to drive the second cylinder 22 to rotate around the first cylinder 21; the heating mechanism 4 includes a heater 41 and a first pipe, the heater 41 is arranged on the bracket 1, one end of the first pipe is connected to the heater 41, and the other end of the pipe is connected to the second cylinder 22. Through the above method, not only can the material to be dried be driven into a tumbling state and be exposed to hot air in all directions after the second cylinder 22 rotates, thereby improving the drying efficiency, but also the second cylinder 22 can be driven to tilt after the first cylinder 21 rotates, so that the second cylinder 22 automatically unloads the material, thereby shortening the time consumption of the drying process and further improving the drying efficiency.

[0039] The present invention further provides an embodiment of an assembly line, which includes the drying device 100. The specific structure and function of the drying device 100 can be found in the above embodiments, which will not be described in detail here.

[0040] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drying device, characterized in that: include: Bracket; The drying mechanism includes a first cylinder, a second cylinder and a cover, wherein the first cylinder is rotatably connected to the bracket, the second cylinder is rotatably sleeved in the first cylinder, the first cylinder and the second cylinder are spaced apart, the second cylinder is used to accommodate the material to be dried, and the cover is provided on the first cylinder and the second cylinder; The drive mechanism includes a first drive assembly and a second drive assembly, wherein the first drive assembly is disposed on the bracket and connected to the first cylinder, and is used to drive the first cylinder to rotate around the bracket; the second drive assembly is disposed on the first cylinder, and the second drive assembly at least partially extends into the first cylinder and is connected to the second cylinder, and is used to drive the second cylinder to rotate around the first cylinder; The heating mechanism includes a heater and a first pipe. The heater is arranged on the bracket. One end of the first pipe is connected to the heater, and the other end of the pipe is connected to the second cylinder.

2. The drying device according to claim 1, characterized in that: The drying mechanism further includes a stirrer, which is rotatably connected to the second cylinder and is used for stirring the material to be dried.

3. The drying device according to claim 2, characterized in that: The first cylinder and the second cylinder are arranged obliquely relative to the bracket.

4. The drying device according to claim 1, characterized in that: The cover body includes a fixed part and a flip part, the fixed part is fixed to the first cylinder and the second cylinder, the flip part is rotatably connected to the fixed part, and the flip part is used to automatically flip open the opening of the second cylinder when the first cylinder rotates and tilts downward, and automatically flip close the opening of the second cylinder when the first cylinder rotates and tilts upward.

5. The drying device according to claim 1, characterized in that: The first driving assembly includes a first motor and a coupling. The first motor and the coupling are both arranged on the bracket. One end of the coupling is connected to the output shaft of the first motor, and the other end of the coupling is connected to the first cylinder.

6. The drying device according to claim 1, characterized in that: The second drive assembly includes a second motor, a bearing seat, a first transmission wheel, a second transmission wheel and a transmission belt. The second motor is fixed outside the first cylinder, the bearing seat is fixed inside the first cylinder, one end of the bearing seat is connected to the second cylinder, and the other end of the bearing seat extends from the first cylinder. The first transmission wheel is rotatably connected to the other end of the bearing seat, the second transmission wheel is connected to the output shaft of the second motor, and the transmission belt is wound around the first transmission wheel and the second transmission wheel.

7. The drying device according to claim 1, characterized in that: It also includes a recovery mechanism, which includes an exhaust gas purifier, a second pipe and a third pipe. The exhaust gas purifier is arranged on the bracket, and the exhaust gas purifier is provided with an air inlet and an air outlet. One end of the second pipe is connected to the air inlet, and the other end of the second pipe is connected to the second cylinder. One end of the third pipe is connected to the air outlet, and the other end of the third pipe is connected to the outside world.

8. The drying device according to claim 7, characterized in that: It also includes a wind speed measuring mechanism, which includes a pressure differential sensor, a processor and a display. The pressure differential sensor is arranged at the air outlet, and the processor and the display are arranged on the bracket. The pressure differential sensor and the display are both electrically connected to the processor. The pressure differential sensor is used to measure the pressure difference between the air outlet and the atmospheric pressure. The processor is used to collect data from the pressure differential sensor and calculate the wind speed. The display is used to display the wind speed calculated by the processor.

9. The drying device according to claim 8, characterized in that: The wind speed measuring mechanism also includes an alarm, which is arranged on the bracket and electrically connected to the pressure difference sensor. The alarm is used to issue an alarm after the pressure difference sensor measures that the air pressure at the air outlet is greater than or equal to the atmospheric pressure.

10. A production line, characterized in that: The invention comprises a drying device as described in any one of claims 1 to 9.