An enamelled wire cooling device for enamelled wire production

Abstract

The present invention discloses an enameled wire cooling device for enameled wire production, which relates to the technical field of enameled wire cooling devices and includes: a frame and a first connecting bar fixedly connected to the bottom of the frame. A limiting seat is fixedly connected to the bottom of the first connecting bar, and a first fixed pipe is fixedly connected to the bottom of the limiting seat. An enameled wire passes through the inside of the first fixed pipe; a stepped cooler, which is located inside the first fixed pipe and is used for stepwise cooling of the enameled wire; a reciprocating tensioning mechanism, which is located between the first fixed pipe and the enameled wire and is used for tensioning the enameled wire. Through the cooperation of components such as the first annular groove, the present invention realizes stepwise cooling of the enameled wire, prevents thermal stress cracks generated by the sudden cooling of the enameled wire film due to a sudden drop in temperature, and at the same time enables the paint layer to uniformly cure the surface of the enameled wire, improving its scratch resistance, thereby improving the overall practicality of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of enameled wire cooling devices, and specifically to an enameled wire cooling device for enameled wire production. Background Art

[0002] Enameled wire is a kind of winding wire composed of two parts: a conductor (such as copper, aluminum or alloy) and an insulating layer (insulating paint). It is finally formed into a wire with both conductivity and insulation through processes such as annealing and softening of the bare wire, multiple painting, baking and curing, etc. During the production of enameled wire, it is necessary to coat the insulating paint on the surface of the conductor. After painting, cooling can make the insulating paint quickly solidify and take shape, forming a uniform and dense insulating layer on the surface of the conductor, so as to ensure that the enameled wire has good insulation performance and prevent electrical faults such as short circuits during use. Therefore, special equipment is needed to cool it after painting.

[0003] According to the patent with the publication number "CN115101259A" disclosed on the Chinese Patent Network, which is "An enameled wire cooling device for enameled wire production", it includes a cooling box, a winding mechanism and a winding and unwinding mechanism; the winding and unwinding mechanism is arranged on both sides of the cooling box and includes a support frame fixedly connected to the cooling box, and a placement groove with an opening on one side is provided on the support frame; the winding mechanism includes a main shaft rotatably connected to the bottom plate of the cooling box. On one side of the main shaft close to the center of the cooling box, there is a winding column. On the outside of the winding column, there is a spiral winding groove, and inside the winding column, there is a spiral diversion cavity. One end of the main shaft far from the bottom plate of the cooling box is detachably connected with a winding assembly. The present invention is applicable to an enameled wire cooling device for enameled wire production. By arranging a rotating winding column with a winding groove inside the cooling box, the moving distance of the enameled wire in the cooling box is increased, and the cooling effect is improved;

[0004] Although the above patent realizes the cooling and temperature reduction of the enameled wire, when the existing enameled wire directly enters the water tank for cooling after painting and drying, due to the thermal stress generated by the excessive temperature difference, the risk of enamel film cracking of the enameled wire is increased, thereby reducing the stability of the mechanical properties and insulation performance of the enameled wire. For this reason, we provide an enameled wire cooling device for enameled wire production to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an enameled wire cooling device for enameled wire production to solve the problem that when the enameled wire directly enters the water tank for cooling after painting and drying, due to the thermal stress generated by the excessive temperature difference, the risk of enamel film cracking of the enameled wire is increased, thereby reducing the stability of the mechanical properties and insulation performance of the enameled wire.

[0006] To achieve the above object, the present invention provides the following technical solution: An enameled wire cooling device for enameled wire production, comprising: a frame and a first connecting strip fixedly connected to the bottom of the frame, a limit seat fixedly connected to the bottom of the first connecting strip, a first fixing pipe fixedly connected to the bottom of the limit seat, and an enameled wire passing through the inside of the first fixing pipe; a stepped cooler located inside the first fixing pipe for performing stepped cooling on the enameled wire; a reciprocating tensioning mechanism located between the first fixing pipe and the enameled wire for performing a tensioning operation on the enameled wire; and an automatic air supply assembly located on the top of the first fixing pipe for cooperating with the stepped cooler to cool the enameled wire.

[0007] As a further aspect of the present invention: The stepped cooler includes a first annular groove, a second annular groove, and a third annular groove opened inside the first fixing pipe. There are multiple first fixing pipes, and a second fixing pipe is provided between every two first fixing pipes. One side of each second fixing pipe is fixedly connected to a hose, one of the hoses is fixedly connected to the first fixing pipe, and the other side of the other hose is fixedly connected to a second hose, and the second hose is fixedly connected to the other first fixing pipe. The first annular groove, the second annular groove, and the third annular groove communicate with each other.

[0008] As a further aspect of the present invention: The stepped cooler further includes a fixing plate fixedly connected to the outer wall of the first connecting strip. A water storage tank is fixedly connected to the top of the fixing plate. A water pump is installed at the water inlet of the water storage tank. The water inlet of the water pump is fixedly connected to a second connecting pipe, and one end of the second connecting pipe is connected to the water outlet of the second hose. The water outlet of the water storage tank is fixedly connected to a first connecting pipe, and one end of the first connecting pipe penetrates to the inside of the first annular groove. A pressure relief valve is installed at the air outlet of the water storage tank.

[0009] As a further aspect of the present invention: A water passing groove communicating with the third annular groove is opened inside the first fixing pipe, and a plurality of water passing holes communicating with the water passing groove are opened inside the first fixing pipe.

[0010] As a further aspect of the present invention: The reciprocating tensioning mechanism includes a second connecting strip fixedly connected to the bottom of the fixing plate. A rectangular plate is fixedly connected to the bottom of the second connecting strip. A hydraulic cylinder is installed on the top of the rectangular plate, and the output end of the hydraulic cylinder penetrates to the lower part of the rectangular plate and is fixedly connected to a driving block. A straight rack is fixedly connected to one side of the driving block. A connecting rod is fixedly connected to one side of the straight rack. A sliding rod is fixedly connected to one side of the connecting rod, and the sliding rod is slidably connected to the inside of the rectangular plate. A driving ring is fixedly connected to the bottom of the sliding rod, and the driving ring is fixedly connected to the hose.

[0011] As a further solution of the present invention: The reciprocating tensioning mechanism further includes a connecting seat fixedly connected to the bottom of the rectangular plate. A rotating shaft is rotatably connected to the inner side of the connecting seat. A spur gear is fixedly connected to the outer wall of the rotating shaft. Two straight racks, two sliding rods, and two driving rings are provided. The two straight racks are meshed with the spur gear.

[0012] As a further solution of the present invention: The automatic air supply assembly includes two rectangular boxes fixedly connected to the top of the rectangular plate. A piston plate is slidably connected to the inner side of each of the two rectangular boxes, and the two piston plates are respectively fixedly connected to one of the sliding rods.

[0013] As a further solution of the present invention: The automatic air supply assembly further includes a first one-way valve fixedly connected to the air outlet of the two rectangular boxes. A second exhaust pipe is installed at the port of one of the first one-way valves, and a first exhaust pipe is installed at the port of the other first one-way valve. One end of the first exhaust pipe penetrates into the inner side of the second fixed pipe and communicates with the inside of the second fixed pipe. One end of the second exhaust pipe penetrates into the inner side of the first fixed pipe and communicates with the third annular groove. A second one-way valve is fixedly connected to the air inlet of each of the two rectangular boxes.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Through the cooperation of components such as the first annular groove, the water in the water storage tank flows into the inner sides of the first annular groove, the second annular groove, and the third annular groove along the first connecting pipe, thereby cooling the enameled wire respectively. Since the distances from the first annular groove, the second annular groove, and the third annular groove to the inner side of the enameled wire decrease in sequence, the temperatures in contact with the enameled wire decrease in sequence, so that the cooling effects on the enameled wire increase in sequence. And when the water flows through the water holes and contacts the outer wall of the enameled wire, the cooling effect of the device is further increased through the contact with the enameled wire, thereby realizing stepped cooling of the enameled wire, preventing thermal stress cracks generated by the sudden cooling of the enameled wire film due to the sudden drop in temperature, and at the same time enabling the paint layer to uniformly cure the surface of the enameled wire and improving its scratch resistance, thereby improving the overall practicality of the device;

[0016] 2. By setting the cooperation of parts such as the water storage tank, there are multiple water storage tanks arranged horizontally at the top of the fixing plate, and the temperatures inside the multiple water storage tanks decrease in sequence. Since the temperature of the enameled wire just entering the inner side of the first fixing tube is the highest, and the water temperatures inside the multiple groups of water storage tanks are decreasing compared to the enameled wire. When the enameled wire passes through the inner sides of multiple groups of first fixing tubes in sequence, it can be cooled by the water with gradually decreasing temperature in sequence, thereby further reducing the thermal stress on the surface of the enameled wire, effectively reducing the generation of cracks on the surface of the enameled wire, improving the overall cooling effect of the device at the same time, and thus enhancing the overall practicality of the device;

[0017] 3. By setting the cooperation of parts such as the hydraulic cylinder, the output end of the hydraulic cylinder drives the round rod to move up and down reciprocally. When driving the round rod to move downward, the driving block is driven to move downward under the action of the round rod, thereby driving a straight rack to move downward. At this time, the straight gear is driven to rotate under the action of one straight rack, and in this way, the other straight rack is driven to move upward, thereby driving one driving ring to move upward and the other driving ring to move downward respectively, so as to tighten the enameled wire. When the round rod is reset, at this time, the enameled wire gradually becomes loose under the action of the driving ring, and this reciprocation makes the enameled wire perform a wave-shaped reciprocating tightening operation between the two hoses, thus realizing the continuous tightening and relaxation of the enameled wire. Therefore, when the cooling water cools the enameled wire, the surface tension of the enameled wire is increased, making it easier for the cooling water to penetrate into the gap between the paint film and the conductor, improving the heat exchange efficiency. At the same time, periodically tightening and releasing the enameled wire can dynamically adjust the surface tension of the enameled wire, reducing the stretching deformation of the paint film caused by the fluctuation of tightness, and thus enhancing the overall practicality of the device;

[0018] 4. By setting up an automatic air supply component, gas can enter the inside of the first fixed tube through the water passing holes, thus generating bubbles. Under the guiding action of the suction of the water pump, the bubbles can move along the two bent hoses. During the process of the bubbles rising and flowing in the water, they will drive the surrounding water flow to generate disturbances, break the laminar state of the water, and form a stronger convection. This convection can accelerate the speed of heat transfer from the surface of the enameled wire to the cooling water, thus significantly improving the heat exchange efficiency. Compared with pure water flow cooling, the cooling process with bubbles can cool the enameled wire faster, reduce the cooling time, and improve the production efficiency. When the bubbles flow in the water, they will have a certain scouring effect on the surface of the enameled wire. This scouring can remove tiny particles such as impurities and paint slag that may exist on the surface of the enameled wire, making the surface of the enameled wire cleaner. A clean surface is conducive to the uniform curing of the paint layer, reducing paint layer defects caused by surface impurities, and thus improving the quality and appearance of the enameled wire. The tiny impact force generated when the bubbles burst on the surface of the enameled wire can also prompt the discharge of tiny bubbles or voids inside the paint film, which helps to reduce the defects inside the paint film, improve the density and integrity of the paint film, and further enhance the electrical and mechanical properties of the enameled wire, such as voltage resistance and scratch resistance. Description of the Drawings

[0019] Figure 1 is a structural schematic diagram of the present invention;

[0020] Figure 2 is a cross-sectional view of the first fixed tube of the present invention;

[0021] Figure 3 is a structural schematic diagram of the inside of the first fixed tube of the present invention;

[0022] Figure 4 is a structural schematic diagram of the first annular groove, the second annular groove and the third annular groove of the present invention;

[0023] Figure 5 is a partial structural schematic diagram of the stepped cooler of the present invention;

[0024] Figure 6 is a structural schematic diagram of the bottom of the fixing plate of the present invention;

[0025] Figure 7 is a structural schematic diagram of the reciprocating tensioning mechanism of the present invention;

[0026] Figure 8 is a structural schematic diagram of the bottom of the rectangular plate of the present invention.

[0027] In the figure: 1, frame; 2, first connecting bar; 3, fixed plate; 4, limiting seat; 5, first fixed pipe; 6, enameled wire; 7, first annular groove; 8, second annular groove; 9, third annular groove; 10, first exhaust pipe; 11, second exhaust pipe; 12, first one-way valve; 13, water storage tank; 14, first connecting pipe; 15, water pump; 16, second connecting pipe; 17, air release valve; 18, water passing trough; 19, water passing hole; 20, hose; 21, second fixed pipe; 22, second hose; 23, second connecting bar; 24, rectangular plate; 25, sliding rod; 26, driving ring; 27, hydraulic cylinder; 28, round rod; 29, driving block; 30, straight rack; 31, connecting seat; 32, rotating shaft; 33, spur gear; 34, connecting rod; 35, rectangular box; 36, piston plate; 37, second one-way valve. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The following will describe the embodiments according to the overall structure of the present invention.

[0030] Please refer to Figures 1 to 8, this embodiment provides an enameled wire cooling device for enameled wire production, including: a frame 1 and a first connecting bar 2 fixedly connected to the bottom of the frame 1. A limit seat 4 is fixedly connected to the bottom of the first connecting bar 2, and a first fixed pipe 5 is fixedly connected to the bottom of the limit seat 4. An enameled wire 6 passes through the inside of the first fixed pipe 5; a stepped cooler, located inside the first fixed pipe 5, for stepwise cooling the enameled wire 6. The stepped cooler includes a first annular groove 7, a second annular groove 8, and a third annular groove 9 opened inside the first fixed pipe 5. There are multiple first fixed pipes 5, and a second fixed pipe 21 is arranged between every two first fixed pipes 5. And a hose 20 is fixedly connected to each side of the second fixed pipe 21. One of the hoses 20 is fixedly connected to the first fixed pipe 5, and a second hose 22 is fixedly connected to one side of the other hose 20, and the second hose 22 is fixedly connected to the other first fixed pipe 5. The first annular groove 7, the second annular groove 8, and the third annular groove 9 communicate with each other. The stepped cooler further includes a fixing plate 3 fixedly connected to the outer wall of the first connecting bar 2. A water storage tank 13 is fixedly connected to the top of the fixing plate 3. A water pump 15 is installed at the water inlet of the water storage tank 13. A second connecting pipe 16 is fixedly connected to the water inlet of the water pump 15, and one end of the second connecting pipe 16 is connected to the water outlet of the second hose 22. A first connecting pipe 14 is fixedly connected to the water outlet of the water storage tank 13, and one end of the first connecting pipe 14 penetrates into the inside of the first annular groove 7. A pressure relief valve 17 is installed at the air outlet of the water storage tank 13. A water passing groove 18 communicating with the third annular groove 9 is opened inside the first fixed pipe 5, and a plurality of water passing holes 19 communicating with the water passing groove 18 are opened inside the first fixed pipe 5;

[0031] A heater is arranged inside the water storage tank 13. Since how the heater heats is prior art, it is not described in detail in this solution. The heater can heat the water inside the water storage tank 13. The water storage tank 13 is connected to an external water supply pipe. First, when the staff cools the enameled wire 6, the external water supply pipe inputs water into the water storage tank 13. The heater inside the water storage tank 13 heats the water inside the water storage tank 13. At this time, the water inside the water storage tank 13 flows into the inside of the first annular groove 7, the second annular groove 8, and the third annular groove 9 along the first connecting pipe 14, so as to cool the enameled wire 6 respectively. Since the distances between the first annular groove 7, the second annular groove 8, and the third annular groove 9 and the inside of the enameled wire 6 decrease in turn, the temperatures in contact with the enameled wire 6 decrease in turn, so that the cooling effect on the enameled wire 6 increases in turn. And when the water flows through the water passing holes 19 and flows onto the outer wall of the enameled wire 6, through contact with the enameled wire 6, the cooling effect of the device is further increased, thus realizing stepwise cooling of the enameled wire 6, preventing thermal stress cracks generated by the sudden cooling of the enameled wire 6 due to the sudden drop in temperature, and at the same time enabling the paint layer to uniformly cure the surface of the enameled wire 6, improving its scratch resistance, thereby improving the overall practicability of the device;

[0032] A plurality of water storage tanks 13 are arranged horizontally at the top of the fixing plate 3, and the temperatures inside the plurality of water storage tanks 13 decrease in sequence. Since the temperature of the enameled wire 6 just entering the inside of the first fixing tube 5 is the highest, and the water temperatures inside the multiple groups of water storage tanks 13 are decreasing compared to the enameled wire 6. When the enameled wire 6 passes through the inside of multiple groups of first fixing tubes 5 in sequence, it can be cooled by the water with gradually decreasing temperature in sequence, thereby further reducing the thermal stress on the surface of the enameled wire 6, effectively reducing the generation of cracks on the surface of the enameled wire 6, and at the same time improving the overall cooling effect of the device, thus improving the overall practicality of the device.

[0033] The water pump 15 is controlled by a PLC controller, and the water pump 15 can be controlled to start intermittently. When cooling the enameled wire 6, the PLC controller controls the start of the enameled wire 6 at this time, and the output end of the enameled wire 6 starts. And when the waste water on the outer wall of the enameled wire 6 flows into the inside of the second hose 22, at this time, under the suction force inside the second connecting pipe 16, the waste water inside the second hose 22 is sucked, so that the waste water on the surface of the enameled wire 6 can be treated. Then, the waste water is reheated by the heater inside the water storage tank 13 again, and then flows into the inside of the first annular groove 7, the second annular groove 8, and the third annular groove 9 again to cool the enameled wire 6 again, thereby effectively saving water resources. At the same time, through the continuous circulation of water, the cooling effect of the device is improved, the cooling efficiency of the enameled wire 6 is improved, and the overall practicality of the device is improved accordingly.

[0034] Please refer to Figures 6 to 8 , a reciprocating tensioning mechanism, located between the first fixing tube 5 and the enameled wire 6, is used for tensioning the enameled wire 6. The reciprocating tensioning mechanism includes a second connecting strip 23 fixedly connected to the bottom of the fixing plate 3. The bottom of the second connecting strip 23 is fixedly connected with a rectangular plate 24. A hydraulic cylinder 27 is installed on the top of the rectangular plate 24, and the output end of the hydraulic cylinder 27 penetrates below the rectangular plate 24 and is fixedly connected with a driving block 29. One side of the driving block 29 is fixedly connected with a straight rack 30. One side of the straight rack 30 is fixedly connected with a connecting rod 34. One side of the connecting rod 34 is fixedly connected with a sliding rod 25, and the sliding rod 25 is slidably connected inside the rectangular plate 24. The bottom of the sliding rod 25 is fixedly connected with a driving ring 26, and the driving ring 26 is fixedly connected with the hose 20. The reciprocating tensioning mechanism further includes a connecting seat 31 fixedly connected to the bottom of the rectangular plate 24. A rotating shaft 32 is rotatably connected inside the connecting seat 31. A straight gear 33 is fixedly connected to the outer wall of the rotating shaft 32. There are two straight racks 30, sliding rods 25, and driving rings 26. The two straight racks 30 are engaged with the straight gear 33;

[0035] The hose 20 and the second fixed pipe 21 are initially arranged in a staggered manner, one above the other. The hydraulic cylinder 27 is controlled by a PLC controller and can be controlled to start intermittently. When the cooling water enters the outer wall of the enameled wire 6 through the inner side of the water passing hole 19 to cool it, at this time, the PLC controller controls the hydraulic cylinder 27 to start. The output end of the hydraulic cylinder 27 drives the round rod 28 to move up and down reciprocally. When the round rod 28 moves downward, under the action of the round rod 28, the driving block 29 is driven to move downward, thereby driving a straight rack 30 to move downward. At this time, under the action of a straight rack 30, the spur gear 33 is driven to rotate, thereby driving the other straight rack 30 to move upward, respectively driving a driving ring 26 to move upward and the other driving ring 26 to move downward, thereby tightening the enameled wire 6. When the round rod 28 is reset, at this time, under the action of the driving ring 26, the enameled wire 6 gradually becomes loose. By reciprocating in this way, the enameled wire 6 is reciprocally tightened in a wavy shape between the two hoses 20, thereby realizing continuous tightening and relaxation of the enameled wire 6. When the cooling water cools the enameled wire 6, the surface tension of the enameled wire 6 is increased, making it easier for the cooling water to penetrate into the gap between the paint film and the conductor, improving the heat exchange efficiency. At the same time, by periodically tightening and releasing the enameled wire 6, the surface tension of the enameled wire 6 can be dynamically adjusted, reducing the stretching deformation of the paint film caused by the fluctuation of tightness, thereby improving the overall practicality of the device.

[0036] Please refer to Figures 5 to 8 The automatic air supply assembly is located at the top of the first fixed pipe 5 and is used to cooperate with the stepped cooler to cool the enameled wire 6. The automatic air supply assembly includes two rectangular boxes 35 fixedly connected to the top of the rectangular plate 24. A piston plate 36 is slidably connected to the inner side of each of the two rectangular boxes 35, and the two piston plates 36 are respectively fixedly connected to a sliding rod 25. The automatic air supply assembly further includes a first one-way valve 12 fixedly connected to the air outlet of the two rectangular boxes 35. A second exhaust pipe 11 is installed at the port of one of the first one-way valves 12, and a first exhaust pipe 10 is installed at the port of the other first one-way valve 12. One end of the first exhaust pipe 10 penetrates into the inner side of the second fixed pipe 21 and communicates with the inside of the second fixed pipe 21. One end of the second exhaust pipe 11 penetrates into the inner side of the first fixed pipe 5 and communicates with the third annular groove 9. A second one-way valve 37 is fixedly connected to the air inlet of each of the two rectangular boxes 35;

[0037] Dust-proof nets for dust prevention are installed at the air inlets of both second one-way valves 37. A filter screen for filtration is installed inside the water storage tank 13. The second one-way valve 37 and the first one-way valve 12 are both one-way breathable valves. When a rack 30 located on the left side of the spur gear 33 moves upward, it can drive a piston plate 36 to move upward, thereby flushing the other inside a rectangular box 35 into the first exhaust pipe 10, so that the first exhaust pipe 10 flushes the gas into the channel between the two hoses 20. At the same time, the second one-way valve 37 on one side of the first exhaust pipe 10 will not intake air. When the above steps are reversed, a rectangular box 35 intakes air through the second one-way valve 37, and the gas inside the other rectangular box 35 can enter the second exhaust pipe 11, so that the gas can enter the inner side of the first fixed pipe 5 through the water passing holes 19, thereby generating bubbles. Under the guiding action of the suction of the water pump 15, the bubbles can move along the two bent hoses 20. During the rising and flowing process of the bubbles in the water, they will drive the surrounding water flow to generate disturbances, break the laminar flow state of the water, and form stronger convection. This convection can accelerate the speed of heat transfer from the surface of the enameled wire 6 to the cooling water, thereby significantly improving the heat exchange efficiency. Compared with pure water flow cooling, the cooling process with bubbles can cool the enameled wire 6 faster, reduce the cooling time, and improve the production efficiency. When the bubbles flow in the water, they will have a certain scouring effect on the surface of the enameled wire 6. This scouring can remove tiny particles such as impurities and paint slag that may exist on the surface of the enameled wire 6, making the surface of the enameled wire 6 cleaner. A clean surface is conducive to the uniform curing of the paint layer, reducing paint layer defects caused by surface impurities, thereby improving the quality and appearance of the enameled wire 6. The tiny impact force generated when the bubbles break on the surface of the enameled wire 6 can also prompt the discharge of tiny bubbles or voids inside the paint film, which helps to reduce the defects inside the paint film, improve the density and integrity of the paint film, and further enhance the electrical and mechanical properties of the enameled wire 6, such as voltage resistance and scratch resistance.

[0038] The above-mentioned is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. An enameled wire cooling device for enameled wire production, characterized in that, Including: A frame (1) and a first connecting bar (2) fixedly connected to the bottom of the frame (1). A limiting seat (4) is fixedly connected to the bottom of the first connecting bar (2), and a first fixing pipe (5) is fixedly connected to the bottom of the limiting seat (4). An enameled wire (6) passes through the inside of the first fixing pipe (5); A stepped cooler, located inside the first fixing pipe (5), for performing stepped cooling on the enameled wire (6); A reciprocating tensioning mechanism, located between the first fixing pipe (5) and the enameled wire (6), for performing a tensioning operation on the enameled wire (6); An automatic air supply assembly, located on the top of the first fixing pipe (5), for cooperating with the stepped cooler to cool the enameled wire (6); The stepped cooler includes a first annular groove (7), a second annular groove (8) and a third annular groove (9) opened inside the first fixing pipe (5). There are multiple first fixing pipes (5), and a second fixing pipe (21) is arranged between every two first fixing pipes (5). A hose (20) is fixedly connected to each side of the second fixing pipe (21). One of the hoses (20) is fixedly connected to the first fixing pipe (5), and a second hose (22) is fixedly connected to one side of the other hose (20), and the second hose (22) is fixedly connected to the other first fixing pipe (5). The first annular groove (7), the second annular groove (8) and the third annular groove (9) are communicated with each other; The stepped cooler further includes a fixing plate (3) fixedly connected to the outer wall of the first connecting bar (2). A water storage tank (13) is fixedly connected to the top of the fixing plate (3). A water pump (15) is installed at the water inlet of the water storage tank (13). A second connecting pipe (16) is fixedly connected to the water inlet of the water pump (15), and one end of the second connecting pipe (16) is connected to the water outlet of the second hose (22). A first connecting pipe (14) is fixedly connected to the water outlet of the water storage tank (13), and one end of the first connecting pipe (14) penetrates to the inside of the first annular groove (7). A pressure relief valve (17) is installed at the air outlet of the water storage tank (13).

2. The enameled wire cooling device for enameled wire production according to claim 1, wherein, A water passing groove (18) communicated with the third annular groove (9) is opened inside the first fixing pipe (5), and a plurality of water passing holes (19) communicated with the water passing groove (18) are opened inside the first fixing pipe (5).

3. The enameled wire cooling device for enameled wire production according to claim 1, characterized in that, The reciprocating tensioning mechanism includes a second connecting bar (23) fixedly connected to the bottom of the fixing plate (3). A rectangular plate (24) is fixedly connected to the bottom of the second connecting bar (23). A hydraulic cylinder (27) is installed on the top of the rectangular plate (24), and the output end of the hydraulic cylinder (27) penetrates below the rectangular plate (24) and is fixedly connected to a driving block (29). A straight rack (30) is fixedly connected to one side of the driving block (29). A connecting rod (34) is fixedly connected to one side of the straight rack (30). A sliding rod (25) is fixedly connected to one side of the connecting rod (34), and the sliding rod (25) is slidably connected to the inside of the rectangular plate (24). A driving ring (26) is fixedly connected to the bottom of the sliding rod (25), and the driving ring (26) is fixedly connected to the hose (20).

4. The enameled wire cooling device for enameled wire production according to claim 3, characterized in that, The reciprocating tensioning mechanism further includes a connecting seat (31) fixedly connected to the bottom of the rectangular plate (24). A rotating shaft (32) is rotatably connected to the inside of the connecting seat (31). A straight gear (33) is fixedly connected to the outer wall of the rotating shaft (32). There are two straight racks (30), two sliding rods (25), and two driving rings (26). The two straight racks (30) are meshed with the straight gear (33).

5. An enameled wire cooling device for enameled wire production according to claim 3, characterized in that, The automatic air supply assembly includes two rectangular boxes (35) fixedly connected to the top of the rectangular plate (24). A piston plate (36) is slidably connected to the inside of each of the two rectangular boxes (35), and the two piston plates (36) are respectively fixedly connected to a sliding rod (25).

6. The enameled wire cooling device for enameled wire production according to claim 5, characterized in that, The automatic air supply assembly further includes a first one-way valve (12) fixedly connected to the air outlet of the two rectangular boxes (35). A second exhaust pipe (11) is installed at the port of one of the first one-way valves (12), and a first exhaust pipe (10) is installed at the port of the other first one-way valve (12). One end of the first exhaust pipe (10) penetrates into the inside of the second fixed pipe (21) and is communicated with the inside of the second fixed pipe (21). One end of the second exhaust pipe (11) penetrates into the inside of the first fixed pipe (5) and is communicated with the third annular groove (9). A second one-way valve (37) is fixedly connected to the air inlet of each of the two rectangular boxes (35).

Images