Multi-layer drying device for double-glass-fiber covered enameled wire

Abstract

The invention relates to the technical field of enameled wire production, and discloses a multi-layer drying device for double-glass-fiber-wrapped enameled wires, which comprises a drying rack, two fixing cylinders are fixedly connected to the inner side of the drying rack, rubber pistons are slidably connected to the inner sides of the fixing cylinders, and second communicating pipes are fixedly connected to the outer sides of the rubber pistons. The outer surface of the fixing cylinder is sequentially communicated with an air inlet pipe and a first communicating pipe, the bottom of the fixing cylinder is fixedly connected with a heating box, the outer side of the heating box is communicated with a second communicating pipe, the end of the second communicating pipe is communicated with a spiral pipeline, and a plurality of hinge seats are installed on the outer side of the spiral pipeline. And a spray head is hinged to the inner side of the hinge seat. The enamelled wire is arranged in the spiral pipeline, the plurality of spray heads spray and heat the enamelled wire from the outer side of the pipeline, the enamelled wire can be effectively heated in all directions through the surrounding type heating mode, and the problem of uneven heating caused by traditional one-way heating is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of enameled wire production, in particular to a multi-layer drying device for double-glass-fiber enameled wires. Background Art

[0002] In modern electrical cable manufacturing, enameled wire, a key conductive material, is widely used in the windings of various motors, transformers, and other equipment. With technological advancements, double-glass-fiber enameled wire has become increasingly popular due to its superior insulation, heat resistance, and mechanical strength. Double-glass-fiber enameled wire typically consists of a conductor coated with a layer of glass fibers, followed by an insulating layer, and finally a final layer of glass fibers. This enhances its overall performance and meets the highest standards of industrial standards.

[0003] Currently, in the production process of enameled wire, the drying process is an important step in ensuring the quality of the enameled wire insulation layer. Traditional drying devices mostly use a unidirectional heating method, generally by setting a heating element on one side of the drying chamber, such as a hot air circulation device or an infrared heater, to heat and dry the enameled wire. However, this method has many disadvantages. On the one hand, unidirectional heating will cause uneven heating of the enameled wire, especially some parts of the enameled wire may not be fully exposed to the heat source, resulting in uneven drying effect of the insulation layer, which in turn affects its insulation performance and adhesion. For example, during the winding process of the enameled wire, the coils on the outer layer may be over-dried or even damaged due to their proximity to the heat source, while the coils on the inner layer may not be fully dried due to insufficient heat, resulting in unstable quality of the entire winding.

[0004] On the other hand, traditional drying equipment typically requires the purchase of large heating equipment, such as specialized hot air circulation systems or infrared heating furnaces. These devices are not only costly but also consume significant energy during operation, increasing production costs and energy consumption. Furthermore, equipment maintenance and operation are relatively complex, negatively impacting production efficiency and economic benefits.

[0005] Therefore, those skilled in the art have proposed a multi-layer drying device for double glass fiber enameled wire to solve the above problems. Summary of the Invention

[0006] In view of the deficiencies in the prior art, the present invention provides a multi-layer drying device for double-glass-fiber enameled wire, which solves the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-layer drying device for double glass fiber enameled wire, comprising a drying frame, wherein two fixed cylinders are fixedly connected to the inner side of the drying frame, a rubber piston is slidably connected to the inner side of the fixed cylinder, a connecting pipe 2 is fixedly connected to the outer side of the rubber piston, an outer surface of the fixed cylinder is connected to an air intake pipe and a connecting pipe 1 in sequence, a heating box is fixedly connected to the bottom of the fixed cylinder, a connecting pipe 2 is connected to the outer side of the heating box, an end of the connecting pipe 2 is connected to a spiral pipe, a plurality of hinged seats are installed on the outer side of the spiral pipe, a nozzle is hinged on the inner side of the hinged seat, the nozzle is connected to the spiral pipe through a connecting pipe, and a reciprocating assembly is installed on the top of the drying frame, and the reciprocating assembly is used to drive the spiral pipe to move back and forth.

[0008] This technical solution creates pressure fluctuations through the reciprocating motion of the rubber piston within the fixed cylinder. Combined with the heating function of the heating chamber, this creates a stable hot air flow. This hot air is evenly sprayed onto the surface of the enameled wire through the spiral duct and nozzle, achieving rapid and uniform drying. Simultaneously, the reciprocating assembly drives the spiral duct left and right, ensuring even heating of the wire and improving drying quality.

[0009] Preferably, the reciprocating assembly includes a fixed shell fixedly connected to the inner top wall of the drying rack, a movable shell is slidably connected to the interior of the fixed shell, two driving racks are fixedly connected to the inner side of the movable shell, a servo motor is installed on the top of the drying rack, and the driving end of the servo motor passes through the outer side of the fixed shell and is fixedly connected to a sector gear.

[0010] With this technical solution, a servo motor drives the sector gear, which meshes with the drive rack to reciprocate the movable housing within the fixed housing. This in turn drives the rubber piston to slide within the fixed cylinder, changing the air pressure to control the gas flow. This simultaneously drives the spiral pipe to move synchronously, allowing the nozzle to cover a wider area, ensuring even heating of the enameled wire and improving drying efficiency.

[0011] Preferably, the outer sides of the two driving racks are meshedly connected with the outer sides of the sector gear, and the outer side of the movable shell is fixedly connected with one end of the movable rod.

[0012] Through the above technical solution, the sector gear meshes with the two drive racks to convert the rotational motion of the servo motor into the left and right reciprocating linear motion of the movable shell, and then drives the rubber piston to slide in the fixed cylinder through the movable rod to realize gas compression and transportation, and at the same time drives the spiral pipeline to move synchronously to ensure uniform drying of the enameled wire by the nozzle.

[0013] Preferably, the bottom of the movable shell is fixedly connected to two connecting strips, the bottom of the connecting strips is fixedly connected to a fixed plate, the bottom of the fixed plate is fixedly connected to the spiral pipe, the inner side of the drying rack is fixedly connected to a plurality of guide rods, and the outer side of the guide rods is connected to the fixed plate through a slider.

[0014] Through the above technical solution, the movable shell drives the spiral pipe to move synchronously through the connecting strip and the fixed plate. At the same time, the guide rod cooperates with the slider on the fixed plate to ensure that the spiral pipe moves smoothly and accurately, so that the nozzle can evenly dry the enameled wire.

[0015] Preferably, one-way valves are installed inside the air intake pipe and the connecting pipe 1, and the conduction directions of the two one-way valves are opposite.

[0016] Through the above technical solution, the opposite conduction directions of the two one-way valves are used to ensure that the gas can only flow in one direction in the fixed cylinder, thereby achieving the intake of external air and the smooth discharge of compressed gas, avoiding gas backflow, and improving drying efficiency.

[0017] Preferably, a heating wire is provided inside the heating box, and one end of the connecting pipe is connected to the outside of the heating box.

[0018] Through the above technical solution, the gas delivered from the connecting pipe 1 is heated by the electric heating wire to form a hot air flow for drying.

[0019] Preferably, a fixing plate is installed on one side of the interior of the drying frame, a winding roller is installed on the other side of the interior of the drying frame, and a motor is installed on the outer side of the winding roller, and the motor is used to drive the winding roller to rotate.

[0020] Through the above technical solution, the motor drives the winding roller to rotate, and the dried enameled wire is neatly wound on the winding roller, achieving orderly winding, which is convenient for subsequent processing or transportation.

[0021] Preferably, a control box is installed on the outside of the drying rack, and the control box is controlled by the drying system.

[0022] Through the above technical solution, the control box is installed on the outside of the drying rack, and the drying system realizes automatic control of the entire drying process, including parameter setting, start and stop, and operation monitoring functions.

[0023] Preferably, the drying system comprises:

[0024] The drying status monitoring submodule is used to monitor the surface temperature, humidity and volatile concentration of organic solvents of the enameled wire in the drying rack in real time;

[0025] The cooling module is used to cool the enameled wire after drying, so that its temperature can be quickly reduced to an appropriate range;

[0026] The control module realizes parameter setting, start and stop, and operation monitoring of the drying system through the human-machine interface.

[0027] Through the above technical solution, the monitoring sub-module can grasp the temperature, humidity and organic solvent concentration of the enameled wire in real time, the cooling module can quickly reduce the temperature of the enameled wire after drying, and the control module can realize automatic control of the drying process. The three work together to ensure the drying effect and production efficiency.

[0028] The present invention provides a multi-layer drying device for double glass fiber enameled wire.

[0029] Beneficial effects:

[0030] 1. The present invention places the enameled wire inside a spiral pipe, and multiple nozzles spray and heat the enameled wire from the outside of the pipe. This surrounding heating method can effectively heat the enameled wire in all directions, avoiding the uneven heating problem caused by traditional unidirectional heating. At the same time, the left and right reciprocating motion of the pipe drives the nozzle to move synchronously. Combined with the hinged structure of the nozzle, the nozzle can not only move with the pipe, but also continuously adjust the angle, further ensuring the drying effect of the enameled wire.

[0031] 2. This invention uses the reciprocating motion of the movable housing to drive the active rod, causing the rubber piston to move within the fixed cylinder, resulting in pressure changes within the cylinder. After the gas is heated in the heating chamber, it forms a hot air flow that is ejected from the nozzle on the spiral tube to dry the enameled wire. This design eliminates the need for additional large-scale heating equipment and utilizes a simple mechanical structure and existing energy sources to generate a stable hot air flow, reducing equipment costs and energy consumption.

[0032] 3. By incorporating a drying status monitoring submodule, the present invention can accurately monitor key parameters such as the surface temperature, humidity, and organic solvent concentration of the enameled wire within the drying rack in real time, providing data support for the drying process. The cooling module can quickly and effectively reduce the temperature of the enameled wire after drying, ensuring that it reaches the appropriate range for subsequent processing and preventing the impact of high temperature on the enameled wire's performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A perspective view of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the drying rack of the present invention;

[0035] Figure 3 It is a schematic diagram of the guide rod structure of the present invention;

[0036] Figure 4This is a schematic diagram of the spiral pipeline structure of the present invention;

[0037] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0038] Figure 6 It is a structural schematic diagram of the hinge seat of the present invention;

[0039] Figure 7 is a cross-sectional view of the fixing cylinder of the present invention;

[0040] Figure 8 It is a cross-sectional view of the fixed shell of the present invention.

[0041] Among them, 1. Drying machine frame; 201. Servo motor; 202. Fixed shell; 203. Moving shell; 204. Fan gear; 205. Drive rack; 3. Winding roller; 401. Spiral pipe; 402. Articulated seat; 403. Sprinkler; 404. Connecting pipe; 405. Movable rod; 406. Fixed cylinder; 407. Connecting pipe 1; 408. Air intake pipe; 409. Connecting pipe 2; 410. Heating box; 411. Rubber piston; 5. Control box; 6. Guide rod; 7. Fixed plate; 8. Connecting strip. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments 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.

[0043] Please see the attached Figure 1 -Attached Figure 8The embodiment of the present invention provides a multi-layer drying device for double-glass fiber enameled wire, including a drying frame 1, two fixed cylinders 406 are fixedly connected to the inner side of the drying frame 1, a rubber piston 411 is slidably connected to the inner side of the fixed cylinder 406, a connecting pipe 2 409 is fixedly connected to the outer side of the rubber piston 411, an outer surface of the fixed cylinder 406 is connected to an air intake pipe 408 and a connecting pipe 1 407 in sequence, a heating box 410 is fixedly connected to the bottom of the fixed cylinder 406, a connecting pipe 2 409 is connected to the outer side of the heating box 410, an end of the connecting pipe 2 409 is connected to a spiral pipe 401, a plurality of hinged seats 402 are installed on the outer side of the spiral pipe 401, a nozzle 403 is hinged to the inner side of the hinged seat 402, and the nozzle 403 is connected to the spiral pipe 401 through a connecting pipe 404, and a reciprocating component is installed on the top of the drying frame 1, and the reciprocating component is used to drive the spiral pipe 401 to move back and forth. One-way valves are installed inside the air inlet pipe 408 and the connecting pipe 1 407, and the two one-way valves are opened in opposite directions. A heating wire is provided inside the heating box 410, and one end of the connecting pipe 1 407 is connected to the outside of the heating box 410.

[0044] Specifically, the spiral duct 401 is used to hold the enameled wire to be dried. When hot air is ejected from the nozzle 403, the enameled wire is heated and dried. The fixed cylinder 406 secures and supports the rubber piston 411 and is connected to the air inlet pipe 408 and connecting pipe 1 407. This guides and controls the flow of gas. The rubber piston 411 slides within the fixed cylinder 406, changing the air pressure within the fixed cylinder 406 via the movable rod 405, pushing gas into the air inlet pipe 408 and conveying the gas through connecting pipe 1 407 to the heating box 410. Connecting pipe 2 409 conveys the heated gas from the heating box 410 to the spiral duct 401, where it is then ejected through the nozzle 403. As the rubber piston 411 moves toward connecting pipe 2 409, the air inlet pipe 408 draws outside air into the fixed cylinder 406 and works together with connecting pipe 1 407 to control the direction of gas flow. The heating box 410 is equipped with a heating wire for heating the gas. After being heated, the gas becomes hot air flow, enters the spiral pipe 401 through the second connecting pipe 409, and is sprayed out through the nozzle 403 to dry the enameled wire. The hinge seat 402 is installed on the outside of the spiral pipe 401 for articulating the nozzle 403.

[0045] Specifically, the double glass fiber enameled wire to be dried is introduced into the spiral pipe 401 .

[0046] The reciprocating assembly drives the movable shell 203 to move left and right, and drives the rubber piston 411 to slide back and forth in the fixed cylinder 406 through the movable rod 405. When the rubber piston 411 moves toward the connecting pipe 2 409, the one-way valve of the air inlet pipe 408 opens, and the outside air is sucked into the fixed cylinder 406. When the rubber piston 411 moves away from the connecting pipe 2 409, the one-way valve of the connecting pipe 1 407 opens, and the compressed gas is transported to the heating box 410. The electric heating wire in the heating box 410 heats the gas to form a hot air flow, which enters the spiral pipe 401 through the connecting pipe 2 409. The hot air flow is evenly ejected through the nozzle 403 to dry the enameled wire. The reciprocating assembly drives the spiral pipe 401 to move left and right, so that the nozzle 403 covers a wider area, ensuring that the enameled wire is heated evenly.

[0047] The reciprocating assembly includes a fixed housing 202 fixedly connected to the inner top wall of the drying rack 1. A movable housing 203 is slidably connected to the interior of the fixed housing 202. Two drive racks 205 are fixedly connected to the inner side of the movable housing 203. A servo motor 201 is mounted on the top of the drying rack 1. The drive end of the servo motor 201 extends through the outside of the fixed housing 202 and is fixedly connected to a sector gear 204. The outer sides of the two drive racks 205 are meshed with the outer sides of the sector gear 204. The outer side of the movable housing 203 is fixedly connected to one end of a movable rod 405.

[0048] Specifically, sector gear 204 meshes with drive rack 205, converting the rotational motion of servo motor 201 into the left-right reciprocating linear motion of movable housing 203. Movable rod 405 transmits the left-right reciprocating motion of movable housing 203 to rubber piston 411, causing it to slide within fixed cylinder 406, achieving the gas compression and delivery functions.

[0049] Servo motor 201 is activated and drives sector gear 204 to rotate. Sector gear 204 meshes with two drive racks 205, thereby driving movable housing 203, which houses drive racks 205, to reciprocate left and right within fixed housing 202. This reciprocating motion of movable housing 203 is transmitted to rubber piston 411 via movable rod 405, causing rubber piston 411 to perform a corresponding reciprocating left and right sliding motion within fixed cylinder 406.

[0050] The bottom of the movable shell 203 is fixedly connected to two connecting bars 8, the bottom of the connecting bar 8 is fixedly connected to a fixed plate 7, the bottom of the fixed plate 7 is fixedly connected to the spiral pipe 401, and the inner side of the drying rack 1 is fixedly connected to multiple guide rods 6, and the outer side of the guide rods 6 is connected to the fixed plate 7 through a slider.

[0051] Specifically, when the reciprocating assembly is operating, the movable housing 203, driven by the servo motor 201, reciprocates left and right, with this motion transmitted to the fixed plate 7 via the connecting bar 8. The fixed plate 7 then drives the spiral conduit 401 to move synchronously left and right. Simultaneously, the fixed plate 7 is connected to the guide rod 6 via a slider. The guide rod 6 provides stable guidance for the movement of the fixed plate 7 and the spiral conduit 401, ensuring the accuracy and stability of their motion trajectory. The movement of the spiral conduit 401 allows the nozzle 403 to cover a wider area, ensuring uniform heating of the enameled wire and improving the drying effect.

[0052] A fixing plate 7 is installed on one side of the interior of the drying frame 1, and a winding roller 3 is installed on the other side of the interior of the drying frame 1. A motor is installed on the outer side of the winding roller 3, and the motor is used to drive the winding roller 3 to rotate.

[0053] Specifically, the fixed plate 7 provides a stable mounting base for the reciprocating assembly. The fixed plate 7 is connected to the moving shell 203 through the connecting strip 8, and the fixed plate 7 transmits the movement of the reciprocating assembly to the spiral pipe 401.

[0054] The function of the winding roller 3 is to reel the dried enameled wire. The motor drives the winding roller 3 to rotate so that the enameled wire can be evenly and tightly wound around the winding roller 3, which is convenient for subsequent storage and transportation.

[0055] A control box 5 is installed on the outside of the drying rack 1, and the control box 5 is controlled by the drying system.

[0056] The drying system includes:

[0057] The drying status monitoring submodule is used to monitor parameters such as the surface temperature, humidity, and volatile concentration of the enameled wire in the drying rack 1 in real time;

[0058] Specifically, the drying status monitoring submodule is equipped with a variety of high-precision sensors that monitor key parameters such as the surface temperature, humidity, and volatile organic solvent concentration of the enameled wire within the drying rack 1 in real time. These sensors transmit this monitoring data to the control module, providing precise data support for intelligent control of the drying process. By monitoring the drying status of the enameled wire in real time, the system can promptly adjust drying parameters to ensure stable and consistent drying quality.

[0059] The cooling module is used to cool the enameled wire after drying, so that its temperature can be quickly reduced to an appropriate range;

[0060] Specifically, after the drying process is complete, the cooling module quickly intervenes to effectively cool the enameled wire. Using air cooling, the module quickly reduces the wire's temperature to a range suitable for subsequent processing. This step is crucial for preventing oxidation and deformation of the wire at high temperatures. It also helps improve the wire's mechanical and electrical properties, ensuring that the final product meets quality standards.

[0061] The control module realizes parameter setting, start and stop, and operation monitoring of the drying system through the human-machine interface.

[0062] Working principle: When using this device, it includes the following operating principles:

[0063] When the device is in operation, the double glass fiber enameled wire to be dried is first introduced into the spiral pipe 401 and wound and fixed by the fixing plate 7 and the winding roller 3. The motor outside the winding roller 3 is started to rotate at a constant speed to ensure that the enameled wire is wound in an orderly manner.

[0064] At the same time, servo motor 201 is activated, driving sector gear 204 to rotate. Sector gear 204 meshes with two drive racks 205, causing movable housing 203 to reciprocate left and right within fixed housing 202. The movable rod 405 connected to movable housing 203 moves synchronously with the rotation, driving rubber piston 411 to slide within fixed cylinder 406.

[0065] When the rubber piston 411 moves toward the second connecting tube 409, the one-way valve on the air inlet pipe 408 opens, and outside air is sucked into the interior of the fixed cylinder 406. Conversely, when the rubber piston 411 moves away from the second connecting tube 409, the one-way valve in the first connecting tube 407 opens, and the gas in the fixed cylinder 406 is compressed and enters the first connecting tube 407, and then flows into the heating box 410.

[0066] In heating box 410, the gas is heated by the heating wire to form a hot air flow, which then flows through connecting pipe 2 409 into spiral pipe 401. Finally, the hot air is evenly ejected through multiple nozzles 403, heating and drying the enameled wire in all directions. The special design of spiral pipe 401 ensures that the enameled wire is fully heated in both the axial and circumferential directions, effectively avoiding the uneven heating problem of traditional unidirectional heating.

[0067] During the reciprocating motion of the movable housing 203, the connecting bar 8 pulls the fixed plate 7, causing it to slide along the guide rod 6, thereby driving the spiral pipe 401 to move left and right synchronously. The nozzle 403, connected to the hinged base 402, has a certain degree of swinging freedom, allowing the spray angle to be continuously adjusted during movement, further optimizing the drying effect.

[0068] The entire drying process is intelligently controlled by the control box 5 through the drying system. The drying status monitoring submodule collects key data such as enameled wire surface temperature, humidity, and organic solvent concentration in real time, and transmits it to the control module. Based on preset parameters and real-time feedback, the control module uses a human-machine interface to precisely control the drying system, including starting, stopping, operating monitoring, and parameter adjustment.

[0069] The cooling module quickly intervenes after the drying process is complete, effectively cooling the enameled wire and rapidly reducing its temperature to the optimal range for subsequent processing, thereby preventing high temperatures from adversely affecting the wire's performance. This series of design elements works together to achieve an efficient, uniform, and intelligently controllable drying process, significantly improving both production efficiency and the quality of the finished product.

[0070] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer drying device for double glass fiber enameled wire, comprising a drying frame (1), characterized in that: Two fixed cylinders (406) are fixedly connected to the inner side of the drying rack (1), a rubber piston (411) is slidably connected to the inner side of the fixed cylinder (406), a second connecting pipe (409) is fixedly connected to the outer side of the rubber piston (411), an outer surface of the fixed cylinder (406) is connected to an air inlet pipe (408) and a first connecting pipe (407) in sequence, a bottom of the fixed cylinder (406) is fixedly connected to a heating box (410), and the outer side of the heating box (410) is connected to a second connecting pipe (409). 409), the end of the connecting pipe 2 (409) is connected to a spiral pipe (401), a plurality of hinged seats (402) are installed on the outside of the spiral pipe (401), a nozzle (403) is hinged on the inside of the hinged seat (402), and the nozzle (403) is connected to the spiral pipe (401) through a connecting pipe (404), and a reciprocating component is installed on the top of the drying rack (1), and the reciprocating component is used to drive the spiral pipe (401) to move back and forth.

2. A multi-layer drying device for double glass fiber enameled wire according to claim 1, characterized in that: The reciprocating assembly comprises a fixed shell (202) fixedly connected to the inner top wall of the drying rack (1); a movable shell (203) is slidably connected to the interior of the fixed shell (202); two driving racks (205) are fixedly connected to the inner side of the movable shell (203); a servo motor (201) is installed on the top of the drying rack (1); a driving end of the servo motor (201) passes through the outer side of the fixed shell (202) and is fixedly connected to a sector gear (204).

3. The multi-layer drying device for double glass fiber enameled wire according to claim 2, characterized in that: The outer sides of the two driving racks (205) are meshedly connected with the outer sides of the sector gear (204), and the outer side of the movable shell (203) is fixedly connected with one end of the movable rod (405).

4. The multi-layer drying device for double glass fiber enameled wire according to claim 2, characterized in that: The bottom of the movable shell (203) is fixedly connected to two connecting bars (8), the bottom of the connecting bars (8) is fixedly connected to a fixing plate (7), the bottom of the fixing plate (7) is fixedly connected to the spiral pipe (401), and the inner side of the drying machine frame (1) is fixedly connected to a plurality of guide rods (6), and the outer sides of the guide rods (6) are connected to the fixing plate (7) via sliders.

5. The multi-layer drying device for double glass fiber enameled wire according to claim 1, characterized in that: One-way valves are installed inside the air inlet pipe (408) and the first connecting pipe (407), and the conduction directions of the two one-way valves are opposite.

6. The multi-layer drying device for double glass fiber enameled wire according to claim 1, characterized in that: A heating wire is provided inside the heating box (410), and one end of the connecting pipe (407) is connected to the outside of the heating box (410).

7. The multi-layer drying device for double glass fiber enameled wire according to claim 1, characterized in that: A fixing plate (7) is installed on one side of the interior of the drying frame (1), a winding roller (3) is installed on the other side of the interior of the drying frame (1), and a motor is installed on the outside of the winding roller (3), and the motor is used to drive the winding roller (3) to rotate.

8. The multi-layer drying device for double glass fiber enameled wire according to claim 1, characterized in that: A control box (5) is installed on the outside of the drying machine frame (1), and the control box (5) is controlled by the drying system.

9. The multi-layer drying device for double glass fiber enameled wire according to claim 8, characterized in that: The drying system comprises: A drying state monitoring submodule is used to monitor parameters such as the surface temperature, humidity and volatile concentration of organic solvent of the enameled wire in the drying rack (1) in real time; The cooling module is used to cool the enameled wire after drying, so that its temperature can be quickly reduced to an appropriate range; The control module realizes parameter setting, start and stop, and operation monitoring of the drying system through the human-machine interface.

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