Drying device and production process for high temperature and high pressure resistant ultra-fine enameled wire production

Abstract

The present invention discloses a drying device for producing high-temperature and high-pressure resistant ultra-fine enameled wires and a production process thereof, comprising a box body, wherein a first drying chamber, a second drying chamber and a cooling chamber are arranged in the box body, a first drying mechanism is arranged in the first drying chamber, a second drying mechanism is arranged in the second drying chamber, the second drying chamber is connected to the first drying mechanism through an air supply mechanism, a heating device is arranged on the top of the second drying chamber, the cooling chamber is located on one side of the second drying chamber, a cooling assembly is arranged in the cooling chamber, an exhaust gas purification device is arranged on the top of the cooling chamber, and the exhaust gas purification device is connected to the first drying chamber and the cooling chamber through an exhaust gas conveying assembly. The process comprises: core wire production, core wire drying, core wire painting, enameled wire drying, enameled wire cooling, exhaust gas treatment and enameled wire winding. The present invention effectively improves the drying efficiency of the core wire and the enameled wire, improves the processing quality of the enameled wire, can purify the exhaust gas, and reduces energy consumption and production costs.

Description

Technical Field

[0001] The invention relates to a drying device for producing high-temperature and high-pressure resistant ultrafine enameled wires and a production process thereof. Background Art

[0002] Enameled wire is an important type of winding wire, which consists of two parts: conductor and insulation layer. The core wire is annealed and softened, then painted and baked several times. However, it is not easy to produce products that meet both standard requirements and customer requirements. It is affected by factors such as raw material quality, process parameters, production equipment, and environment.

[0003] During the processing of existing enameled wires, two dryers are generally required to dry the core wire and the enameled wire separately, which not only increases energy consumption, but also produces waste gas that easily pollutes the environment and is not conducive to assembly line processing and production. Summary of the invention

[0004] The object of the present invention is to provide a drying device for producing high-temperature and high-pressure resistant ultra-fine enameled wires and a technical solution for its production process in view of the deficiencies in the prior art. Through the design of the first drying chamber and the first drying mechanism, the cleaned core wire can be dried, which is beneficial to the subsequent painting of the core wire. The design of the second drying chamber and the second drying mechanism can dry the enameled wire after painting, which is beneficial to evaporating the solvent in the paint and improving the processing quality of the enameled wire. The heating device can not only act on the second drying chamber to dry the enameled wire by generating hot air, but also can transport the hot air in the second drying chamber to the first drying chamber through the air supply mechanism. The drying chamber dries the core wire to reduce energy consumption and meet the requirements of enameled wire processing. The cooling chamber can quickly cool the dried enameled wire to improve the processing quality of the enameled wire. The exhaust gas purification device and the exhaust gas conveying component can purify the gas in the first drying chamber and the cooling chamber to reduce the entry of harmful gases into the environment and protect the environment. The production process is simple in steps, which not only effectively improves the drying efficiency of the core wire and the enameled wire and improves the processing quality of the enameled wire, but also utilizes the exhaust gas and finally purifies it to reduce pollution to the environment. At the same time, it greatly reduces the energy consumption of the drying device and reduces the production cost of the enameled wire.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The drying device for producing high-temperature and high-pressure resistant ultra-fine enameled wire is characterized in that it comprises a box body, wherein a first drying chamber, a second drying chamber and a cooling chamber are arranged in the box body, the first drying chamber is located below the second drying chamber and the cooling chamber, a first drying mechanism is arranged in the first drying chamber, a second drying mechanism is arranged in the second drying chamber, the second drying chamber is connected to the first drying mechanism through an air supply mechanism, a heating device is arranged on the top of the second drying chamber, the cooling chamber is located on one side of the second drying chamber, a cooling assembly is arranged in the cooling chamber, the cooling assembly is connected to the cooling device on the top of the cooling chamber, an exhaust gas purification device is arranged on the top of the cooling chamber, and the exhaust gas purification device is connected to the first drying chamber and the cooling chamber through an exhaust gas conveying assembly; through the design of the first drying chamber and the first drying mechanism, the cleaned core wire can be dried Dry treatment is beneficial to the subsequent painting of the core wire. The design of the second drying chamber and the second drying mechanism can dry the enameled wire after painting, which is beneficial to evaporating the solvent in the paint and improving the processing quality of the enameled wire. The heating device can generate hot air, which can not only act on the second drying chamber to dry the enameled wire, but also can transport the hot air in the second drying chamber to the first drying chamber through the air supply mechanism to dry the core wire, thereby reducing energy consumption and meeting the requirements of enameled wire processing. The cooling chamber can quickly cool the dried enameled wire to improve the processing quality of the enameled wire. The exhaust gas purification device and the exhaust gas conveying assembly can purify the gas in the first drying chamber and the cooling chamber to reduce the entry of harmful gases into the environment and protect the environment.

[0007] Furthermore, the first drying mechanism and the second drying mechanism each include an upper drying plate body and a lower drying plate body, the upper drying plate body is respectively connected to the first cylinder and the second cylinder through a first piston rod and a second piston rod, the first cylinder and the second cylinder are respectively fixed to the top of the first drying chamber and the second drying chamber, the lower drying plate body is respectively connected to the first drying chamber and the second drying chamber through a first supporting foot and a second supporting foot, arc grooves are respectively provided on contact surfaces of the upper drying plate body and the lower drying plate body, guide holes are provided in the arc grooves on the first drying mechanism, the guide holes located on the upper drying plate body are connected to the air supply mechanism, and the guide holes located on the lower drying plate body are connected to the air supply mechanism. The flow hole is connected to the liquid outlet pipe, the arc groove corresponding to the upper drying plate of the second drying mechanism is provided with a guide hole and a second arc baffle, the guide hole is connected to the heating device through the second air duct, the second air duct is provided with a temperature sensor, and the arc groove corresponding to the lower drying plate of the second drying mechanism is provided with a first arc baffle. Through the design of the upper drying plate and the lower drying plate, the hot air can be more concentrated on the core wire and the enameled wire, the drying efficiency is improved, and the energy consumption is reduced. The first cylinder and the second cylinder can drive the upper drying plate to rise or fall, which meets the requirements of threading the core wire and the enameled wire, and the first support foot and the second support foot The stability and reliability of the installation of the lower drying plate body are improved. The hot air in the second drying chamber can be transported to the upper drying plate body of the first drying mechanism through the air supply mechanism, and acts on the core wire through the guide holes of the upper drying plate body to dry the core wire. The liquid on the core wire flows out from the liquid outlet pipe through the guide holes on the lower drying plate body, thereby improving the drying efficiency of the core wire. At the same time, since the temperature of the hot air entering the first drying mechanism is lower than the temperature of the hot air in the second drying chamber, a water collecting tank is provided at the bottom of the first drying chamber for collecting the liquid. The hot air output speed of the guide holes on the first drying mechanism is greater than the hot air output speed of the guide holes on the second drying mechanism. Wind output speed, when the hot air in the heating device enters the upper drying plate of the second drying mechanism through the second air duct, it acts on the enameled wire through the guide hole to dry the enameled wire. At the same time, since the arc groove on the upper drying plate and the arc groove on the lower drying plate are respectively provided with the second arc baffle and the first arc baffle, the hot air can be delayed from flowing out from between the upper drying plate and the lower drying plate, thereby improving the drying efficiency. The temperature sensor can monitor the temperature of the hot air in real time. When the temperature is lower than the set value, the heating device is controlled to increase the heating temperature to the set value, thereby greatly improving the working efficiency of the drying device.

[0008] Furthermore, support mechanisms are symmetrically provided on both sides of the upper drying plate body and the lower drying plate body, and the support mechanisms include a fixed plate, a lifting plate, a positioning roller and a third cylinder. The fixed plate is fixed on the upper drying plate body and the lower drying plate body, and limit blocks are symmetrically arranged on both sides of the fixed plate, and a lifting rod is movably connected to the limit blocks. A baffle is provided at the end of the lifting rod, and a lifting plate and a positioning roller are provided between two adjacent lifting rods. An annular groove is evenly provided on the positioning roller, and the third cylinder is fixed to the fixed plate. The third cylinder is connected to the lifting plate through a third piston rod, and the lifting plate can be driven to move up and down through the third piston rod, and then the positioning roller is driven to move up and down through the lifting rod to meet the positioning requirements of the core wire or enameled wire, and the limit block improves the stability and reliability of the movement of the lifting rod, and the baffle can play a limiting role to prevent the lifting rod from separating from the limit block, the annular groove is used to support the core wire or enameled wire, and the fixed plate improves the stability and reliability of the installation of the entire support mechanism.

[0009] Furthermore, the air supply mechanism includes a first air duct, a first fan and a first solenoid valve. The first air duct is connected to the upper drying plate and the second drying chamber on the first drying mechanism. The first fan and the first solenoid valve are both arranged on the first air duct. The hot air in the second drying chamber can be transported to the first drying mechanism through the first air duct to achieve rapid drying of the core wire. The first fan can control the size of the wind force, and the first solenoid valve is used to control the switch of the first air duct to meet the actual processing requirements.

[0010] Furthermore, the heating device includes a first tube body, air inlets are evenly arranged on the circumferential side surfaces of the first tube body, the air inlets are each provided with a first filter, a second filter, a second fan and a heating wire are provided in the first tube body, the second fan is located between the second filter and the heating wire, the second filter is located on the side close to the air inlet, the air can be heated by the heating wire and transported to the second drying mechanism to achieve drying of the enameled wire, the second fan is used to provide power and adjust the wind speed, the first filter and the second filter reduce the entry of impurities, thereby improving the safety of the heating device when in use.

[0011] Furthermore, the cooling assembly includes a first horizontal tube, a second horizontal tube and an air outlet duct. The first horizontal tube is arranged between two adjacent second horizontal tubes. The air outlet duct is evenly arranged at the bottom of the second horizontal tube. The air outlet duct is staggered along the upper and lower sides of the enameled wire. The second horizontal tube located above is connected to the cooling device through the third air duct. The upper and lower second horizontal tubes are connected through the fourth air duct. The design of the first horizontal tube and the second horizontal tube facilitates the flow of cold air, and the enameled wire is cooled by air through the air outlet ducts on the upper and lower sides. The enameled wire in the cooling room can be supported by supporting wheels.

[0012] Furthermore, the cooling device includes a second tube body, which is provided with a cooling water chamber and an air supply channel. The air supply channel is located on the inner side of the cooling water chamber. A heat exchange layer is provided between the air supply channel and the cooling water chamber. The cooling water chamber is connected with a water inlet interface and a water outlet interface. A third filter screen and a fourth fan are provided in the air supply channel. The fourth fan is located below the third filter screen. Cooling water can be filled in the cooling water chamber. The air in the air supply channel can exchange heat with the cooling water in the cooling water chamber through the heat exchange layer, and under the action of the fourth fan, the cold air is input into the cooling component to realize air cooling of the enameled wire.

[0013] Furthermore, the exhaust gas purification device includes a purification box, an exhaust pipe is provided on the top of the purification box, and the purification liquid is filled in the purification box. The exhaust gas conveying assembly includes an exhaust gas conveying pipe, a third fan and a diversion pipe. One end of the exhaust gas conveying pipe is respectively connected to the first drying chamber and the cooling chamber, and the other end of the exhaust gas conveying pipe is connected to the diversion pipe. The diversion pipe is located in the purification box. A second solenoid valve and a third solenoid valve are provided on the exhaust gas conveying pipe. By opening the second solenoid valve and the third solenoid valve, the exhaust gas in the first drying chamber and the cooling chamber can be input into the purification box through the exhaust gas conveying pipe for purification. The third fan can generate wind power for conveying exhaust gas. A liquid level sensor can be installed in the purification box to detect the liquid level height of the purification liquid.

[0014] The production process of high temperature and high pressure resistant ultrafine enameled wire is characterized by using the drying device as mentioned above, comprising the following steps:

[0015] 1) Core wire production

[0016] a. First, the blanks required for core wire production are inspected, and the qualified blanks are drawn to form core wires of required sizes;

[0017] b. Then the core wire is sent into the annealing furnace for annealing;

[0018] c. Then the core wire is cooled and cleaned to remove impurities on the surface of the core wire;

[0019] 2) Core wire drying

[0020] a. Input the cleaned core wire into the first drying chamber of the drying device, start the first cylinder, lift the upper drying plate through the first piston rod, so that the core wire can pass through the arc groove of the lower drying plate, start the first cylinder, and move the upper drying plate downward until it fits with the lower drying plate;

[0021] b. Then start the third cylinder on both sides of the lower drying plate to raise the height of the positioning roller until the annular groove on the positioning roller lifts the core wire so that the core wire is separated from the arc groove on the lower drying plate. At the same time, a gap is formed between the core wire and the arc groove of the upper drying plate. Start the third cylinder on both sides of the upper drying plate to move the positioning rollers on both sides of the upper drying plate downward until they contact the positioning rollers below.

[0022] c. Then, the second cylinder in the second drying chamber is started, and the height of the upper drying plate of the second drying mechanism is raised by the second cylinder through the second piston rod, and the heating device is started to transport hot air into the second drying chamber through the heating device;

[0023] d. Finally, open the first solenoid valve and start the first fan, so that the hot air in the second drying chamber enters the upper drying plate of the first drying mechanism through the first air duct and is output from the guide holes of the upper drying plate to dry the core wire. The liquid on the core wire flows into the water collecting tank through the guide holes on the lower drying plate through the liquid outlet pipe, and the dried core wire is output from the other side of the box;

[0024] 3) Core wire painting

[0025] The dried core wire is painted, and the paint is evenly coated on the core wire during the painting process. The paint comprises terephthalic acid, phthalic anhydride, adipic acid, neopentyl glycol, ethylene glycol, glycerol, trimethylolpropane, diphenylmethane diisocyanate, xylenol, cresol and xylene;

[0026] 4) Enameled wire drying

[0027] a. The enameled wire after painting is conveyed into the second drying chamber and passes through the arc groove on the lower drying plate of the second drying mechanism. The first cylinder is started to move the upper drying plate downward until it fits with the lower drying plate;

[0028] b. Then start the third cylinder on both sides of the lower drying plate to raise the height of the positioning roller until the annular groove on the positioning roller lifts the enameled wire so that the enameled wire is separated from the first arc-shaped retaining bar of the arc-shaped groove on the lower drying plate. At the same time, a gap is formed between the enameled wire and the second arc-shaped retaining bar of the arc-shaped groove on the upper drying plate. Start the third cylinder on both sides of the upper drying plate to move the positioning rollers on both sides of the upper drying plate downward until they contact the positioning rollers below.

[0029] c. Then, the temperature of the hot air generated by the heating device is controlled at 200-500°C, and the enameled wire is dried through the second air duct and the guide holes on the upper drying plate;

[0030] 5) Enameled wire cooling

[0031] The dried enameled wire is fed into the cooling chamber, the second tube body at the top of the cooling chamber is injected with coolant, the fourth fan generates wind, and the cold wind is transported to the cooling assembly through the third air delivery pipe, and the enameled wire is cooled by the cooling assembly to reduce the temperature of the enameled wire;

[0032] 6) Waste gas treatment

[0033] Open the second solenoid valve and the third solenoid valve on the exhaust gas conveying pipe, start the third fan on the exhaust gas conveying pipe, and convey the exhaust gas generated in the first drying chamber and the second drying chamber to the exhaust gas purification device through the exhaust gas conveying pipe for purification treatment, and finally discharge clean gas;

[0034] 7) Enameled wire winding

[0035] The cooled enameled wire is reeled up by a reeling device, weighed and tested, and the qualified enameled wire is packed into boxes.

[0036] The production process has simple steps, which not only effectively improves the drying efficiency of the core wire and the enameled wire and improves the processing quality of the enameled wire, but also can utilize the waste gas and finally purify it to reduce pollution to the environment. At the same time, it greatly reduces the energy consumption of the drying device and reduces the production cost of the enameled wire.

[0037] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0038] 1. Through the design of the first drying chamber and the first drying mechanism, the core wire after cleaning can be dried, which is beneficial to the subsequent painting of the core wire. The design of the second drying chamber and the second drying mechanism can dry the enameled wire after painting, which is beneficial to evaporating the solvent in the paint and improving the processing quality of the enameled wire.

[0039] 2. The heating device can generate hot air, which can not only act on the second drying chamber to dry the enameled wire, but also transport the hot air in the second drying chamber to the first drying chamber through the air supply mechanism to dry the core wire, thereby reducing energy consumption and meeting the requirements of enameled wire processing.

[0040] 3. The cooling chamber can quickly cool the dried enameled wire to improve the processing quality of the enameled wire. The exhaust gas purification device and the exhaust gas conveying assembly can purify the gas in the first drying chamber and the cooling chamber to reduce the entry of harmful gases into the environment and protect the environment.

[0041] 4. The production process is simple, which not only effectively improves the drying efficiency of the core wire and the enameled wire and improves the processing quality of the enameled wire, but also can utilize the waste gas and finally purify it to reduce pollution to the environment. At the same time, it greatly reduces the energy consumption of the drying device and reduces the production cost of the enameled wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention will be further described below in conjunction with the accompanying drawings:

[0043] Figure 1 It is a structural schematic diagram of a drying device for producing high temperature and high pressure resistant ultrafine enameled wire and a drying device in its production process of the present invention;

[0044] Figure 2 It is a structural schematic diagram of the first drying mechanism in the present invention;

[0045] Figure 3 It is a structural schematic diagram of the core body of the present invention when passing through the first drying mechanism;

[0046] Figure 4 It is a schematic diagram of the structure of the heating device in the present invention;

[0047] Figure 5 It is a structural schematic diagram of the second drying mechanism in the present invention;

[0048] Figure 6 It is a structural schematic diagram of the enameled wire in the present invention when passing through the second drying mechanism;

[0049] Figure 7 It is a schematic diagram of the structure of the cooling device in the present invention;

[0050] Figure 8 It is a schematic diagram of the structure of the exhaust gas purification device in the present invention.

[0051] In the figure: 1-box; 2-first drying chamber; 3-second drying chamber; 4-cooling chamber; 5-first drying mechanism; 6-water collecting tank; 7-first air pipe; 8-first fan; 9-first solenoid valve; 10-liquid outlet pipe; 11-first supporting foot; 12-second supporting foot; 13-first cylinder; 14-first piston rod; 15-second drying mechanism; 16-heating device; 17-second cylinder; 18-second piston rod; 19-cooling device; 20-third air pipe; 21-first horizontal pipe; 22-fourth air pipe; 23-air outlet pipe; 24-waste gas conveying pipe; 25-second solenoid valve; 26-third solenoid valve; 27-third fan; 28-waste gas purification device; 29-upper drying plate; 30 -lower drying plate; 31-arc groove; 32-guide hole; 33-limiting block; 34-lifting rod; 35-baffle; 36-lifting plate; 37-positioning roller; 38-annular groove; 39-third cylinder; 40-third piston rod; 41-first pipe body; 42-air inlet; 43-first filter; 44-second filter; 45-second fan; 46-heating wire; 47-temperature sensor; 48-second air duct; 49-first arc baffle; 50-second arc baffle; 51-second pipe body; 52-cooling water chamber; 53-water inlet interface; 54-water outlet interface; 55-third filter; 56-fourth fan; 57-purification box; 58-diverter pipe; 59-exhaust pipe; 60-fixed plate. DETAILED DESCRIPTION

[0052] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0053] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0054] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0055] like Figures 1 to 8As shown, the drying device for producing high-temperature and high-pressure resistant ultra-fine enameled wire of the present invention comprises a housing 1, wherein a first drying chamber 2, a second drying chamber 3 and a cooling chamber 4 are arranged in the housing 1, wherein the first drying chamber 2 is located below the second drying chamber 3 and the cooling chamber 4, wherein a first drying mechanism 5 is arranged in the first drying chamber 2, wherein the first drying mechanism 5 comprises an upper drying plate 29 and a lower drying plate 30, wherein the upper drying plate 29 is connected to the first cylinder 13 via a first piston rod 14, wherein the first cylinder 13 is fixed to the top of the first drying chamber 2, wherein the lower drying plate 30 is connected to the bottom of the first drying chamber 2 via a first supporting foot 11, wherein arc grooves 31 are arranged on the contact surfaces of the upper drying plate 29 and the lower drying plate 30, wherein guide holes 32 are arranged in the arc grooves 31 on the first drying mechanism 5. Through the design of the upper drying plate 29 and the lower drying plate 30, the hot air can act more concentratedly on the core wire, thereby improving the drying efficiency and reducing energy consumption. The first cylinder 13 can drive the upper drying plate 29 to rise or fall to meet the requirements of core wire threading. The first supporting foot 11 improves the stability and reliability of the installation of the lower drying plate 30. The liquid on the core wire flows out from the liquid outlet pipe 10 through the guide hole 32 on the lower drying plate 30, thereby improving the drying efficiency of the core wire. At the same time, since the temperature of the hot air entering the first drying mechanism 5 is lower than the temperature of the hot air in the second drying chamber 3, a water collecting tank 6 is provided at the bottom of the first drying chamber 2 to collect the liquid.

[0056] The guide hole 32 located on the upper drying plate 29 is connected to the air supply mechanism, and the second drying chamber 3 is connected to the first drying mechanism 5 through the air supply mechanism. The air supply mechanism includes a first air delivery pipe 7, a first fan 8 and a first solenoid valve 9. The first air delivery pipe 7 connects the upper drying plate 29 on the first drying mechanism 5 and the second drying chamber 3. The first fan 8 and the first solenoid valve 9 are both arranged on the first air delivery pipe 7. The hot air in the second drying chamber 3 can be transported to the first drying mechanism 5 through the first air delivery pipe 7 to achieve rapid drying of the core wire. The first fan 8 can control the size of the wind force. The first solenoid valve 9 is used to control the switch of the first air delivery pipe 7 to meet the requirements of actual processing. The guide hole 32 located on the lower drying plate 30 is connected to the liquid outlet pipe 10. The hot air in the second drying chamber 3 can be transported to the upper drying plate 29 of the first drying mechanism 5 through the air supply mechanism, and act on the core wire through the guide hole 32 of the upper drying plate 29 to dry the core wire.

[0057] A second drying mechanism 15 is provided in the second drying chamber 3, and the second drying mechanism 15 includes an upper drying plate 29 and a lower drying plate 30. The upper drying plate 29 is connected to the second cylinder 17 via a second piston rod 18, and the second cylinder 17 is fixed to the top of the second drying chamber 3. The lower drying plate 30 is connected to the second drying chamber 3 via a second supporting foot 12, and arc grooves 31 are provided on the contact surfaces of the upper drying plate 29 and the lower drying plate 30. The arc groove 31 corresponding to the upper drying plate 29 of the second drying mechanism 15 is provided with a guide hole 32 and a second arc baffle 50, the guide hole 32 is connected to the heating device 16 through the second air duct 48, and the second air duct 48 is provided with a temperature sensor 47. The arc groove 31 corresponding to the lower drying plate 30 of the second drying mechanism 15 is provided with a first arc baffle 49. Through the design of the upper drying plate 29 and the lower drying plate 30, the hot air can be more concentrated on the core wire and the enameled wire, thereby improving the drying efficiency and reducing the energy consumption. The second cylinder 17 can drive the upper drying plate 29 to rise or fall to meet the requirements of the enameled wire threading. The second supporting foot 12 improves the stability and reliability of the installation of the lower drying plate 30. The hot air from the guide hole 32 on the first drying mechanism 5 The output speed is greater than the hot air output speed of the guide hole 32 on the second drying mechanism 15. When the hot air in the heating device 16 enters the upper drying plate 29 of the second drying mechanism 15 through the second air duct 48, it acts on the enameled wire through the guide hole 32 to dry the enameled wire. At the same time, since the arc groove 31 on the upper drying plate 29 and the arc groove 31 on the lower drying plate 30 are respectively provided with the second arc baffle 50 and the first arc baffle 49, the hot air can be delayed from flowing out from between the upper drying plate 29 and the lower drying plate 30, thereby improving the drying efficiency. The temperature sensor 47 can monitor the temperature of the hot air in real time. When the temperature is lower than the set value, the heating device 16 is controlled to increase the heating temperature to the set value, thereby greatly improving the working efficiency of the drying device.

[0058] Both sides of the upper drying plate body 29 and the lower drying plate body 30 are symmetrically provided with supporting mechanisms, and the supporting mechanisms include a fixed plate 60, a lifting plate 36, a positioning roller 37 and a third cylinder 39. The fixed plate 60 is fixed on the upper drying plate body 29 and the lower drying plate body 30. The fixed plate 60 is symmetrically provided with limit blocks 33 on both sides of the fixed plate 60. The limit blocks 33 are movably connected with lifting rods 34. The ends of the lifting rods 34 are provided with baffles 35. A lifting plate 36 and a positioning roller 37 are provided between two adjacent lifting rods 34. The positioning roller 37 is evenly provided with annular grooves 38. The third cylinder 39 is fixed at On the fixed plate 60, the third cylinder 39 is connected to the lifting plate 36 through the third piston rod 40. The third cylinder 39 can drive the lifting plate 36 to move up and down through the third piston rod 40, and then drive the positioning roller 37 to move up and down through the lifting rod 34 to meet the positioning requirements of the core wire or enameled wire. The limit block 33 improves the stability and reliability of the movement of the lifting rod 34. The baffle 35 can play a limiting role to prevent the lifting rod 34 from separating from the limit block 33. The annular groove 38 is used to support the core wire or enameled wire. The fixed plate 60 improves the stability and reliability of the installation of the entire supporting mechanism.

[0059] A heating device 16 is provided on the top of the second drying chamber 3. The heating device 16 includes a first tube body 41. Air inlets 42 are evenly provided on the circumferential side of the first tube body 41. The air inlets 42 are each provided with a first filter screen 43. A second filter screen 44, a second fan 45 and a heating wire 46 are provided in the first tube body 41. The second fan 45 is located between the second filter screen 44 and the heating wire 46. The second filter screen 44 is located on the side close to the air inlet 42. The air can be heated by the heating wire 46 and transported to the second drying mechanism 15 to achieve drying of the enameled wire. The second fan 45 is used to provide power and adjust the wind speed. The first filter screen 43 and the second filter screen 44 reduce the entry of impurities, thereby improving the safety of the heating device 16 when in use.

[0060] The cooling chamber 4 is located on one side of the second drying chamber 3. A cooling assembly is provided in the cooling chamber 4. The cooling assembly is connected to the cooling device 19 at the top of the cooling chamber 4. The cooling assembly includes a first horizontal pipe 21, a second horizontal pipe and an air outlet pipe 23. The first horizontal pipe 21 is provided between two adjacent second horizontal pipes. The air outlet pipe 23 is evenly provided at the bottom of the second horizontal pipe. The air outlet pipe 23 is staggered along the upper and lower sides of the enameled wire. The second horizontal pipe located above is connected to the cooling device 19 through the third air duct 20. The upper and lower second horizontal pipes are connected through the fourth air duct 22. The design of the first horizontal pipe 21 and the second horizontal pipe facilitates the flow of cold air, and the enameled wire is cooled by air through the air outlet pipes 23 on the upper and lower sides. The enameled wire in the cooling chamber 4 can be supported by supporting wheels.

[0061] The cooling device 19 includes a second tube body 51, in which a cooling water chamber 52 and an air supply channel are provided. The air supply channel is located on the inner side of the cooling water chamber 52. A heat exchange layer is provided between the air supply channel and the cooling water chamber 52. A water inlet interface 53 and a water outlet interface 54 are connected to the cooling water chamber 52. A third filter 55 and a fourth fan 56 are provided in the air supply channel. The fourth fan 56 is located below the third filter 55. Cooling water can be filled in the cooling water chamber 52. The air in the air supply channel can exchange heat with the cooling water in the cooling water chamber 52 through the heat exchange layer, and under the action of the fourth fan 56, the cold air is input into the cooling assembly to achieve air cooling of the enameled wire.

[0062] An exhaust gas purification device 28 is provided at the top of the cooling chamber 4. The exhaust gas purification device 28 is connected to the first drying chamber 2 and the cooling chamber 4 through an exhaust gas conveying component. The exhaust gas purification device 28 includes a purification box 57. An exhaust pipe 59 is provided at the top of the purification box 57. The purification liquid is filled in the purification box 57. The exhaust gas conveying component includes an exhaust gas conveying pipe 24, a third fan 27 and a diversion pipe 58. One end of the exhaust gas conveying pipe 24 is respectively connected to the first drying chamber 2 and the cooling chamber 4, and the other end of the exhaust gas conveying pipe 24 is connected to the diversion pipe 58. The diversion pipe 58 is located in the purification box 57. A second solenoid valve 25 and a third solenoid valve 26 are provided on the exhaust gas conveying pipe 24. By opening the second solenoid valve 25 and the third solenoid valve 26, the exhaust gas in the first drying chamber 2 and the cooling chamber 4 can be input into the purification box 57 through the exhaust gas conveying pipe 24 for purification. The third fan 27 can generate wind power for conveying exhaust gas. A liquid level sensor can be installed in the purification box 57 to detect the liquid level height of the purified liquid. Through the design of the first drying chamber 2 and the first drying mechanism 5, the core wire after cleaning can be dried, which is beneficial to the subsequent painting of the core wire. The design of the second drying chamber 3 and the second drying mechanism 15 can dry the enameled wire after painting, which is beneficial to evaporating the solvent in the paint and improving the processing quality of the enameled wire. The heating device 16 can generate hot air, which can not only act on the second drying chamber 3 to dry the enameled wire, but also can transport the hot air in the second drying chamber 3 to the first drying chamber 2 through the air supply mechanism to dry the core wire, thereby reducing energy consumption and meeting the requirements of enameled wire processing. The cooling chamber 4 can quickly cool the dried enameled wire to improve the processing quality of the enameled wire. The exhaust gas purification device 28 and the exhaust gas conveying assembly can purify the gas in the first drying chamber 2 and the cooling chamber 4 to reduce the entry of harmful gases into the environment and protect the environment.

[0063] The production process of high temperature and high pressure resistant ultrafine enameled wire, using the drying device as mentioned above, comprises the following steps:

[0064] 1) Core wire production

[0065] a. First, the blanks required for core wire production are inspected, and the qualified blanks are drawn to form core wires of required sizes;

[0066] b. Then the core wire is sent into the annealing furnace for annealing;

[0067] c. Then the core wire is cooled and cleaned to remove impurities on the surface of the core wire;

[0068] 2) Core wire drying

[0069] a. Input the cleaned core wire into the first drying chamber 2 of the drying device, start the first cylinder 13, and lift the upper drying plate 29 through the first piston rod 14, so that the core wire can pass through the arc groove 31 of the lower drying plate 30, and start the first cylinder 13 to move the upper drying plate 29 downward until it fits with the lower drying plate 30;

[0070] b. Then, the third cylinders 39 on both sides of the lower drying plate 30 are started to raise the height of the positioning rollers 37 until the annular grooves 38 on the positioning rollers 37 lift the core wire so that the core wire is separated from the arc grooves 31 on the lower drying plate 30. At the same time, a gap is formed between the core wire and the arc grooves 31 of the upper drying plate 29. The third cylinders 39 on both sides of the upper drying plate 29 are started to move the positioning rollers 37 on both sides of the upper drying plate 29 downward until they contact the positioning rollers 37 below.

[0071] c. Then, the second cylinder 17 in the second drying chamber 3 is started, and the height of the upper drying plate 29 of the second drying mechanism 15 is raised by the second cylinder 17 through the second piston rod 18, and the heating device 16 is started to transport the hot air into the second drying chamber 3 through the heating device 16;

[0072] d. Finally, the first solenoid valve 9 is opened, and the first fan 8 is started, so that the hot air in the second drying chamber 3 enters the upper drying plate 29 of the first drying mechanism 5 through the first air delivery pipe 7, and is output from the guide hole 32 of the upper drying plate 29 to dry the core wire. The liquid on the core wire flows into the water collecting tank 6 through the guide hole 32 on the lower drying plate 30 from the liquid outlet pipe 10, and the dried core wire is output from the other side of the box body 1;

[0073] 3) Core wire painting

[0074] The core wire after drying is painted, and the paint is evenly coated on the core wire during the painting. The paint comprises terephthalic acid, phthalic anhydride, adipic acid, neopentyl glycol, ethylene glycol, glycerine, trimethylolpropane, diphenylmethane diisocyanate, xylenol, cresol and xylene, wherein the mass percentage of terephthalic acid is 2%, the mass percentage of phthalic anhydride is 5%, the mass percentage of adipic acid is 2%, the mass percentage of neopentyl glycol is 3%, the mass percentage of ethylene glycol is 1%, the mass percentage of glycerine is 3%, the mass percentage of trimethylolpropane is 4%, the mass percentage of diphenylmethane diisocyanate is 13%, the mass percentage of xylenol is 15%, the mass percentage of cresol is 20%, and the mass percentage of xylene is 32%;

[0075] 4) Enameled wire drying

[0076] a. The enameled wire after painting is conveyed into the second drying chamber 3, and passes through the arc groove 31 on the lower drying plate 30 of the second drying mechanism 15, and the first cylinder 13 is started to move the upper drying plate 29 downward until it is in contact with the lower drying plate 30;

[0077] b. Then, the third cylinders 39 on both sides of the lower drying plate 30 are started to raise the height of the positioning rollers 37 until the annular grooves 38 on the positioning rollers 37 lift the enameled wire, so that the enameled wire is separated from the first arc-shaped retaining strip 49 of the arc-shaped groove 31 on the lower drying plate 30, and a gap is formed between the enameled wire and the second arc-shaped retaining strip 50 of the arc-shaped groove 31 on the upper drying plate 29. The third cylinders 39 on both sides of the upper drying plate 29 are started to move the positioning rollers 37 on both sides of the upper drying plate 29 downward until they contact the positioning rollers 37 below.

[0078] c. Then, the temperature of the hot air generated by the heating device 16 is controlled at 200-500° C., and the hot air is dried through the second air duct 48 and the guide holes 32 on the upper drying plate 29 to dry the enameled wire;

[0079] 5) Enameled wire cooling

[0080] The dried enameled wire is fed into the cooling chamber 4. The second tube 51 at the top of the cooling chamber 4 is filled with coolant. The fourth fan 56 generates wind force, and the cold wind is transported to the cooling assembly through the third air delivery pipe 20. The enameled wire is cooled by the cooling assembly to reduce the temperature of the enameled wire.

[0081] 6) Waste gas treatment

[0082] Open the second solenoid valve 25 and the third solenoid valve 26 on the waste gas delivery pipe 24, start the third fan 27 on the waste gas delivery pipe 24, and deliver the waste gas generated in the first drying chamber 2 and the second drying chamber 3 to the waste gas purification device 28 through the waste gas delivery pipe 24 for purification, and finally discharge clean gas;

[0083] 7) Enameled wire winding

[0084] The cooled enameled wire is reeled up by a reeling device, weighed and tested, and the qualified enameled wire is packed into boxes.

[0085] The production process has simple steps, which not only effectively improves the drying efficiency of the core wire and the enameled wire and improves the processing quality of the enameled wire, but also can utilize the waste gas and finally purify it to reduce pollution to the environment. At the same time, it greatly reduces the energy consumption of the drying device and reduces the production cost of the enameled wire.

[0086] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. Drying device for producing high temperature and high pressure resistant ultra-fine enameled wire, characterized by: It includes a box body, in which a first drying chamber, a second drying chamber and a cooling chamber are arranged, the first drying chamber is located below the second drying chamber and the cooling chamber, a first drying mechanism is arranged in the first drying chamber, a second drying mechanism is arranged in the second drying chamber, the second drying chamber is connected to the first drying mechanism through an air supply mechanism, a heating device is arranged on the top of the second drying chamber, the cooling chamber is located on one side of the second drying chamber, a cooling assembly is arranged in the cooling chamber, the cooling assembly is connected to the cooling device on the top of the cooling chamber, an exhaust gas purification device is arranged on the top of the cooling chamber, and the exhaust gas purification device is connected to the first drying chamber and the cooling chamber through an exhaust gas conveying assembly.

2. The drying device for producing high temperature and high pressure resistant ultra-fine enameled wire according to claim 1, characterized in that: The first drying mechanism and the second drying mechanism both include an upper drying plate body and a lower drying plate body, the upper drying plate body is respectively connected to the first cylinder and the second cylinder through a first piston rod and a second piston rod, the first cylinder and the second cylinder are respectively fixed to the top of the first drying chamber and the second drying chamber, the lower drying plate body is respectively connected to the first drying chamber and the second drying chamber through a first supporting foot and a second supporting foot, arc grooves are provided on contact surfaces of the upper drying plate body and the lower drying plate body, guide holes are provided in the arc grooves on the first drying mechanism, the guide holes located on the upper drying plate body are connected to the air supply mechanism, the guide holes located on the lower drying plate body are connected to the liquid outlet pipe, the guide holes and the second arc baffle are provided in the arc grooves corresponding to the upper drying plate body of the second drying mechanism, the guide holes are connected to the heating device through the second air supply pipe, the second air supply pipe is provided with a temperature sensor, and the first arc baffle is provided in the arc grooves corresponding to the lower drying plate body of the second drying mechanism.

3. The drying device for producing high temperature and high pressure resistant ultra-fine enameled wire according to claim 2, characterized in that: Support mechanisms are symmetrically provided on both sides of the upper drying plate body and the lower drying plate body, and the support mechanisms include a fixed plate, a lifting plate, a positioning roller and a third cylinder. The fixed plate is fixed on the upper drying plate body and the lower drying plate body, and limit blocks are symmetrically provided on both sides of the fixed plate. Lifting rods are movably connected to the limit blocks, and baffles are provided at the ends of the lifting rods. The lifting plate and the positioning rollers are provided between two adjacent lifting rods, and annular grooves are evenly provided on the positioning rollers. The third cylinder is fixed on the fixed plate, and the third cylinder is connected to the lifting plate through a third piston rod.

4. The drying device for producing high temperature and high pressure resistant ultra-fine enameled wire according to claim 2, characterized in that: The air supply mechanism includes a first air supply pipe, a first fan and a first solenoid valve. The first air supply pipe connects the upper drying plate on the first drying mechanism and the second drying chamber. The first fan and the first solenoid valve are both arranged on the first air supply pipe.

5. The drying device for producing high temperature and high pressure resistant ultra-fine enameled wire according to claim 1, characterized in that: The heating device includes a first tube body, air inlets are evenly arranged on the circumferential side of the first tube body, and a first filter is arranged on the air inlets. A second filter, a second fan and a heating wire are arranged in the first tube body, the second fan is located between the second filter and the heating wire, and the second filter is located on the side close to the air inlet.

6. The drying device for producing high temperature and high pressure resistant ultra-fine enameled wire according to claim 1, characterized in that: The cooling assembly includes a first horizontal tube, a second horizontal tube and an air outlet duct, the first horizontal tube is arranged between two adjacent second horizontal tubes, the air outlet duct is evenly arranged at the bottom of the second horizontal tube, the air outlet duct is staggered along the upper and lower sides of the enameled wire, the second horizontal tube located above is connected to the cooling device through a third air duct, and the upper and lower second horizontal tubes are connected through a fourth air duct.

7. The drying device for producing high temperature and high pressure resistant ultra-fine enameled wire according to claim 6, characterized in that: The cooling device includes a second tube body, in which a cooling water cavity and an air supply channel are provided, the air supply channel is located on the inner side of the cooling water cavity, a heat exchange layer is provided between the air supply channel and the cooling water cavity, the cooling water cavity is connected with a water inlet interface and a water outlet interface, a third filter screen and a fourth fan are provided in the air supply channel, and the fourth fan is located below the third filter screen.

8. The drying device for producing high temperature and high pressure resistant ultra-fine enameled wire according to claim 1, characterized in that: The exhaust gas purification device includes a purification box, an exhaust pipe is provided on the top of the purification box, and purification liquid is filled in the purification box. The exhaust gas conveying assembly includes an exhaust gas conveying pipe, a third fan and a diversion pipe. One end of the exhaust gas conveying pipe is respectively connected to the first drying chamber and the cooling chamber, and the other end of the exhaust gas conveying pipe is connected to the diversion pipe. The diversion pipe is located in the purification box, and a second solenoid valve and a third solenoid valve are provided on the exhaust gas conveying pipe.

9. The production process of high temperature and high pressure resistant ultrafine enameled wire is characterized by: The drying device according to any one of claims 1 to 8 comprises the following steps: 1) Core wire production a. First, the blanks required for core wire production are inspected, and the qualified blanks are drawn to form core wires of required sizes; b. Then the core wire is sent into the annealing furnace for annealing; c. Then the core wire is cooled and cleaned to remove impurities on the surface of the core wire; 2) Core wire drying a. Input the cleaned core wire into the first drying chamber of the drying device, start the first cylinder, lift the upper drying plate through the first piston rod, so that the core wire can pass through the arc groove of the lower drying plate, start the first cylinder, and move the upper drying plate downward until it fits with the lower drying plate; b. Then start the third cylinder on both sides of the lower drying plate to raise the height of the positioning roller until the annular groove on the positioning roller lifts the core wire so that the core wire is separated from the arc groove on the lower drying plate. At the same time, a gap is formed between the core wire and the arc groove of the upper drying plate. Start the third cylinder on both sides of the upper drying plate to move the positioning rollers on both sides of the upper drying plate downward until they contact the positioning rollers below. c. Then, the second cylinder in the second drying chamber is started, and the height of the upper drying plate of the second drying mechanism is raised by the second cylinder through the second piston rod, and the heating device is started to transport hot air into the second drying chamber through the heating device; d. Finally, open the first solenoid valve and start the first fan, so that the hot air in the second drying chamber enters the upper drying plate of the first drying mechanism through the first air duct and is output from the guide holes of the upper drying plate to dry the core wire. The liquid on the core wire flows into the water collecting tank through the guide holes on the lower drying plate through the liquid outlet pipe, and the dried core wire is output from the other side of the box; 3) Core wire painting The core wire after drying is painted, and the paint is evenly coated on the core wire during painting. The paint includes terephthalic acid, phthalic anhydride, adipic acid, neopentyl glycol, ethylene glycol, glycerol, trimethylolpropane, diphenylmethane diisocyanate, xylenol, cresol and xylene; 4) Enameled wire drying a. The enameled wire after painting is conveyed into the second drying chamber and passes through the arc groove on the lower drying plate of the second drying mechanism. The first cylinder is started to move the upper drying plate downward until it fits with the lower drying plate; b. Then start the third cylinder on both sides of the lower drying plate to raise the height of the positioning roller until the annular groove on the positioning roller lifts the enameled wire so that the enameled wire is separated from the first arc-shaped retaining bar of the arc-shaped groove on the lower drying plate. At the same time, a gap is formed between the enameled wire and the second arc-shaped retaining bar of the arc-shaped groove on the upper drying plate. Start the third cylinder on both sides of the upper drying plate to move the positioning rollers on both sides of the upper drying plate downward until they contact the positioning rollers below. c. Then, the temperature of the hot air generated by the heating device is controlled at 200-500°C, and the enameled wire is dried through the second air duct and the guide holes on the upper drying plate; 5) Enameled wire cooling The dried enameled wire is fed into the cooling chamber, the second tube body at the top of the cooling chamber is injected with coolant, the fourth fan generates wind, and the cold wind is transported to the cooling assembly through the third air delivery pipe, and the enameled wire is cooled by the cooling assembly to reduce the temperature of the enameled wire; 6) Waste gas treatment Open the second solenoid valve and the third solenoid valve on the exhaust gas conveying pipe, start the third fan on the exhaust gas conveying pipe, and convey the exhaust gas generated in the first drying chamber and the second drying chamber to the exhaust gas purification device through the exhaust gas conveying pipe for purification treatment, and finally discharge clean gas; 7) Enameled wire winding The cooled enameled wire is reeled up by a reeling device, weighed and tested, and the qualified enameled wire is packed into boxes.

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