A water cooling device for the guide wheel on the drying furnace of a vertical flat wire enameling machine

Abstract

The present application provides a water cooling device for a guide wheel on a drying furnace of a vertical flat wire enameling machine, relating to the technical field of enameled flat wire production. A water cooling device for a guide wheel on a drying furnace of a vertical flat wire enameling machine comprises a guide wheel and a rotating shaft, wherein an inner cavity and an outer cavity are coaxially arranged inside the guide wheel; a water channel is connected between the rotating shaft and the outer cavity, a bidirectional rotary joint is coaxially connected to the rotating shaft, and the bidirectional rotary joint is externally connected to a chiller; a mixing device is provided in the outer cavity of the guide wheel, and the mixing device comprises a spiral retaining ring and a heat conducting member; the spiral retaining ring divides the outer cavity into a spiral liquid channel, the heat conducting member is spirally arranged on the outer side of the liquid channel, and the heat conducting member is centrally arranged in the liquid channel and spaced apart from the inner side of the liquid channel. The external chiller is used to continuously transport cold water into the outer cavity, so that a water cooling effect is formed inside the guide wheel, thereby ensuring the winding speed of the copper flat wire while improving the cooling effect on the guide wheel.

Description

Technical Field

[0001] The present application relates to the technical field of enameled flat wire production, and in particular to a water cooling device for a guide wheel on a drying furnace of a vertical flat wire enameling machine. Background Art

[0002] In the prior art, liquid enamel is evenly dipped onto the copper flat wire, and then dried to quickly evaporate the organic solvent, ultimately evenly coating the surface of the copper flat wire with a layer of insulating polyvinyl varnish to form an enameled copper flat wire.

[0003] However, after the enameled copper flat wire is baked in a high-temperature oven, the residual heat brought by the copper flat wire is continuously transmitted to the guide wheel body when passing through the upper guide wheel, causing the accumulated temperature of the upper guide wheel to reach more than 120°, which will have a great adverse effect on the quality of the paint film of the enameled copper flat wire.

[0004] In the existing technology, air cooling is usually used to reduce the accumulated heat at the upper guide wheel, but the cooling effect is poor and cannot meet the predetermined cooling requirements. In order to reduce the accumulated heat at the upper guide wheel as much as possible, the winding speed of the copper flat wire is often reduced. This will cause the enameling speed to fail to reach the predetermined value, while reducing production efficiency and increasing production costs. Summary of the Invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a water cooling device for a guide wheel on a vertical flat wire enameling machine oven, comprising: a guide wheel and a rotating shaft, wherein the guide wheel is coaxially provided with an inner cavity and an outer cavity; the rotating shaft is hollow, the rotating shaft coaxially passes through the guide wheel and is key-connected to the guide wheel; a water channel is connected between the rotating shaft and the outer cavity, a two-way rotary joint is coaxially connected to the rotating shaft, and the two-way rotary joint is externally connected to a chiller; a mixing device is provided in the outer cavity, and the mixing device includes a spiral baffle ring and a heat conductor; the spiral baffle ring divides the outer cavity into a spiral liquid channel, and a plurality of notches are evenly provided on the outer side of the spiral baffle ring; the heat conductor is spirally provided on the outer side of the liquid channel, the heat conductor is centrally provided in the liquid channel and a distance is left between the heat conductor and the inner side of the liquid channel; a distance is left between the heat conductor and the spiral baffle ring.

[0006] Preferably, two bearing seats are symmetrically mounted on the rotating shaft, and the bearing seats are fixed to the base.

[0007] Preferably, one end of the rotating shaft is connected to a connecting sleeve, and the connecting sleeve and the bidirectional rotating joint are coaxially fixed.

[0008] Preferably, the side wall of the rotating shaft and the end of the guide wheel are provided with a liquid supply pipeline, and the liquid supply pipeline includes: a first water outlet joint, a first water inlet joint, a second water outlet joint and a second water inlet joint, the first water outlet joint passes through the side wall of the rotating shaft and is connected to the water outlet end of the two-way rotary joint located in the connecting sleeve; the first water inlet joint passes through the end of the guide wheel and is connected to the outer cavity, and is connected to the first water outlet joint; the second water outlet joint passes through the end of the guide wheel and is connected to the outer cavity; the second water inlet joint is connected to the second water outlet joint, and passes through the side wall of the rotating shaft and is connected to the water inlet end of the two-way rotary joint located in the connecting sleeve.

[0009] Preferably, the bidirectional rotary joint supplies cold water discharged from the chiller to the first water outlet joint, and the first water inlet joint supplies cold water to the second water outlet joint and enters the outer cavity. The water in the outer cavity enters the second water inlet joint from the second water outlet joint and finally flows back to the chiller through the bidirectional rotary joint, thereby forming a water path between the rotating shaft and the outer cavity.

[0010] Preferably, the notch on the outer side of the spiral retaining ring is a groove, at least one groove is provided on each spiral turn of the spiral retaining ring, and a plurality of grooves are evenly distributed along the outer side of the spiral retaining ring.

[0011] Preferably, the heat conducting member includes a heat conducting ring and a heat conducting sheet, the heat conducting ring is fixedly connected to the side wall of the outer cavity facing outward, and the heat conducting sheet is fixedly connected to the heat conducting ring.

[0012] Preferably, the heat conducting ring and the spiral retaining ring have the same spiral direction and the same pitch setting.

[0013] Preferably, the inner diameter of the heat-conducting ring is larger than the inner diameter of the outer cavity.

[0014] Preferably, the heat conducting sheet is centrally arranged on the heat conducting ring, and the heat conducting ring is centrally arranged on the heat conducting ring.

[0015] The beneficial effects of the present invention are:

[0016] 1. Using an external chiller, cold water is continuously delivered to the outer cavity through the bidirectional rotary joint and the water channel connecting the rotating shaft and the outer cavity. The water flow carrying heat energy is then returned to the chiller through the bidirectional rotary joint for cooling, so that a water cooling effect is formed inside the guide wheel, thereby ensuring the winding speed of the copper flat wire while improving the cooling effect on the guide wheel;

[0017] 2. Use the spiral retaining ring to divide the outer cavity into a spiral liquid channel, so that the water flows in the outer cavity in a spiral shape, thereby increasing the length of the water flow path in the outer cavity and further improving the cooling effect of the water flow on the guide wheel;

[0018] 3. Multiple notches are evenly arranged on the outside of the spiral retaining ring to form axial communication between each spiral turn of the spiral liquid channel. When the water flows in the liquid channel, part of the cooling water can directly enter the next spiral liquid channel through the notch, so that the water flow in the entire outer cavity forms two circulation modes, changing the single water flow posture, increasing the circulation speed of part of the water flow, and further improving the cooling effect of the water flow on the guide wheel;

[0019] 4. By setting up the heat conducting parts in the spiral liquid channel, the contact area between the water flow and the guide wheel is further increased, thereby improving the cooling effect of the water flow on the guide wheel.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the following is a brief introduction to the drawings required for use in the implementation methods. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of a water cooling device for a guide wheel on a vertical flat wire enameling machine oven according to an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the internal structure of a water cooling device for a guide wheel on a vertical flat wire enameling machine oven according to an embodiment of the present application;

[0024] Figure 3 is a schematic diagram of the positions of the guide wheel and the rotating shaft and a schematic diagram of the internal structure of the two according to an embodiment of the present application;

[0025] Figure 4 1 is a schematic diagram of the position and structure of a flow mixing device according to an embodiment of the present application;

[0026] Figure 5 According to the embodiment of this application Figure 4 A is an enlarged schematic diagram;

[0027] Figure 6 is an exploded view of the structure of a flow mixing device according to an embodiment of the present application;

[0028] Figure 7 is a schematic structural diagram of a spiral retaining ring according to an embodiment of the present application;

[0029] Figure 8 is an exploded view of the structure of a heat conducting member according to an embodiment of the present application;

[0030] Figure 9 is a schematic diagram of the position and structure of an auxiliary device according to an embodiment of the present application;

[0031] Figure 10 Schematic diagram of the structure of an auxiliary device according to an embodiment of the present application.

[0032] Icons: 1. Guide wheel; 11. Inner cavity; 12. Outer cavity; 13. Axial through hole; 131. Inner hole; 132. Outer hole; 2. Rotating shaft; 21. Bearing seat; 22. Connecting sleeve; 23. Bidirectional rotary joint; 24. Liquid supply pipeline; 241. First water outlet joint; 242. First water inlet joint; 243. Second water outlet joint; 244. Second water inlet joint; 3. Base; 4. Mixing flow device; 41. Spiral retaining ring; 411. Groove; 42. Heat conducting part; 421. Heat conducting ring; 422. Heat conducting sheet; 5. Auxiliary device; 51. Blade; 52. Heat conducting strip. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0034] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] Example 1, as Figures 1-10 As shown, a water cooling device for a guide wheel on a vertical flat wire enameling machine oven according to an embodiment of the present application includes a guide wheel 1 and a rotating shaft 2.

[0036] Specific examples Figure 3 As shown, an inner cavity 11 and an outer cavity 12 are coaxially arranged inside the guide wheel 1.

[0037] like Figure 1-Figure 3 As shown, the rotating shaft 2 is hollow, and the rotating shaft 2 coaxially passes through the guide wheel 1 and is key-connected to the guide wheel 1.

[0038] A water channel is connected between the rotating shaft 2 and the outer cavity 12 , and a bidirectional rotary joint 23 is coaxially connected to the rotating shaft 2 , and the bidirectional rotary joint 23 is externally connected to a chiller.

[0039] It should be noted that the two-way rotary joint 23 is a prior art, and one end thereof connected to the chiller is provided with two joints, which are respectively connected to the water inlet and outlet ends of the chiller. The other end of the two-way rotary joint 23 is provided with two joints, which are respectively used to transport the cold water provided by the chiller to the outer cavity 12, and to return the water carrying heat energy in the outer cavity 12 to the two-way rotary joint 23, and to transport the water carrying heat energy to the chiller for cooling through the joint connected to the water inlet end of the chiller.

[0040] It should be further explained that the chiller is a prior art and is only used for cooling water in the specific embodiment of this application. The specific model is selected according to actual needs and will not be described in detail here.

[0041] like Figure 2 and Figure 4 As shown, a flow mixing device 4 is provided in the outer cavity 12 , and the flow mixing device 4 includes a spiral baffle 41 and a heat conducting member 42 .

[0042] Among them, the spiral retaining ring 41 divides the outer cavity 12 into a spiral liquid channel. The existence of the spiral liquid channel allows the water flow entering the outer cavity 12 to form a regular flow, and the design of the spiral liquid channel allows for more sufficient contact between the water flow and the guide wheel 1, and allows the overall water flow to form a relatively uniform distribution in the guide wheel 1. Therefore, the morphological design of the water flow improves the cooling effect of the guide wheel 1.

[0043] Further, such as Figure 7 As shown, a plurality of notches are evenly arranged on the outer side of the spiral retaining ring 41. It can be understood that the setting of the notches enables the spiral liquid channel to form a certain degree of connectivity in the axial direction, so that a part of the water flow in the spiral liquid channel can form an axial shuttle, and combined with the spiral flow of most of the water flow in the spiral liquid channel, two water flow postures will be formed inside the entire outer cavity 12, and the existence of these two water flow postures will also improve the degree of mixing between the water flows. At the same time, the axially shuttling water flow can carry heat energy out of the guide wheel 1 faster, so that the cooling effect of the water flow on the guide wheel 1 will be improved to a certain extent.

[0044] like Figure 4 and Figure 5 As shown, the heat conductor 42 is spirally arranged on the outer side of the liquid channel, the heat conductor 42 is centrally arranged in the liquid channel and a distance is left between the heat conductor 42 and the inner side of the liquid channel, and a distance is left between the heat conductor 42 and the spiral baffle ring 41. It can be understood that the design of the heat conductor 42 will increase the contact area between the water flow in the outer cavity 12 and the guide wheel 1, thereby further improving the cooling effect of the guide wheel 1.

[0045] In addition, the water cooling device for the guide wheel on the drying furnace of a vertical flat wire enameling machine according to an embodiment of the present application also has the following additional technical features:

[0046] like Figure 1 and Figure 2 As shown, in a specific embodiment of the present application, two guide wheels 1 are provided as a group, and the two guide wheels 1 and the structures thereon are identical.

[0047] Specifically, such as Figure 1-Figure 3 As shown, two bearing seats 21 are symmetrically mounted on the rotating shaft 2, and the bearing seats 21 are fixed to the base 3. In this way, the guide wheel 1 can be rotated on the base 3 through the rotating shaft 2 to form a rolling support for the copper flat wire being transported.

[0048] Furthermore, one end of the rotating shaft 2 is connected to a connecting sleeve 22, and the connecting sleeve 22 and the bidirectional rotating joint 23 are coaxially fixed. It can be understood that through the design of the bidirectional rotating joint 23, there will be no rotational interference in the water path between the rotating shaft 2 and the chiller.

[0049] Specifically, the side wall of the rotating shaft 2 and the end of the guide wheel 1 are provided with a liquid supply pipeline 24, which includes: a first water outlet connector 241, a first water inlet connector 242, a second water outlet connector 243 and a second water inlet connector 244. Figure 3 As shown, the first water outlet joint 241 passes through the side wall of the rotating shaft 2 and is connected to the water outlet end of the two-way rotary joint 23 located in the connecting sleeve 22; the first water inlet joint 242 passes through the end of the guide wheel 1 and is connected to the outer cavity 12, and is connected to the first water outlet joint 241; the second water outlet joint 243 passes through the end of the guide wheel 1 and is connected to the outer cavity 12; the second water inlet joint 244 is connected to the second water outlet joint 243, and passes through the side wall of the rotating shaft 2 and is connected to the water inlet end of the two-way rotary joint 23 located in the connecting sleeve 22.

[0050] It should be noted that the connection between the above-mentioned joints can be formed by using pipelines. The specific pipelines are selected according to actual conditions and will not be described in detail here.

[0051] It should be further explained that the two-way rotary joint 23 supplies the cold water discharged from the chiller to the first water outlet joint 241, and the first water inlet joint 242 supplies the cold water to the second water outlet joint 243 and enters the outer cavity 12. The water in the outer cavity 12 enters the second water inlet joint 244 from the second water outlet joint 243 and finally flows back to the chiller through the two-way rotary joint 23, thereby forming a water path between the rotating shaft 2 and the outer cavity 12, and forming a continuously supplied cooling water in the outer cavity 12.

[0052] like Figure 7As shown, the notch on the outside of the spiral baffle ring 41 is a groove 411. There is at least one groove 411 on each spiral turn of the spiral baffle ring 41. The multiple grooves 411 are evenly distributed along the outside of the spiral baffle ring 41. The two adjacent grooves 411 are not on the same axis. Therefore, the water flow after axial shuttling must flow along the spiral liquid channel at one end before it can axially penetrate the spiral baffle ring 41 at another groove 411 downstream. This design will increase the degree of mixing of the water flow in the outer cavity 12, and then make the heat energy carried in the water flow uniform. At the same time, the axial shuttling water flow further accelerates the escape of heat energy from the outer cavity 12.

[0053] like Figure 4 and Figure 5 As shown, the heat conducting member 42 includes a heat conducting ring 421 and a heat conducting sheet 422 . The heat conducting ring 421 is fixed to the side wall of the outer cavity 12 facing outward (i.e., the larger diameter side of the outer cavity 12 ), and the heat conducting sheet 422 is fixed to the heat conducting ring 421 .

[0054] It should be noted that the heat conducting ring 421 and the heat conducting sheet 422 are preferably made of metal materials with good thermal conductivity to enhance the thermal conductivity. The specific selection depends on the actual situation and will not be elaborated here.

[0055] like Figure 4-Figure 6 As shown, the spiral directions of the heat conducting ring 421 and the spiral retaining ring 41 are the same, and the pitch settings of the two are also the same. Specifically, as shown in FIG. Figure 4 Shown and Figure 5 As shown, when viewed from the side, the two are arranged in a staggered manner.

[0056] Furthermore, the inner diameter of the heat-conducting ring 421 is larger than the inner diameter of the outer cavity 12 , that is, the inner side of the heat-conducting ring 421 does not contact the inner side of the outer cavity 12 , that is, the heat-conducting ring 421 does not divide the spiral liquid channel into two disconnected liquid channels.

[0057] Furthermore, the heat conducting sheet 422 is centrally arranged on the heat conducting ring 421, and the heat conducting ring 421 is centrally arranged on the heat conducting ring 421, as shown in FIG. Figure 6 As shown, when viewed from the side, the heat conducting ring 421 is in the middle of the heat conducting sheet 422 , and when viewed from the end face, the heat conducting sheet 422 is in the middle of the heat conducting ring 421 (not shown in the figure).

[0058] The following describes the use of a water cooling device for a guide wheel on a vertical flat wire enameling machine oven according to an embodiment of the present application with reference to the accompanying drawings:

[0059] During specific use, the cooling water is continuously transported to the first water outlet joint 241 through the two-way rotary joint 23 by the external chiller, and the cooling water is transported to the inside of the outer cavity 12 by the first water inlet joint 242. The cooling water is guided by the spiral retaining ring 41 in the outer cavity 12, and will flow in the spiral liquid channel formed in the outer cavity 12, and finally flow out of the outer cavity 12 from the second water outlet joint 243. The water flow is guided to the two-way rotary joint 23 by the second water inlet joint 244 and then enters the chiller for cooling. In this way, a continuous flow of cooling water is formed inside the outer cavity 12 to cool the waste heat generated by the guide wheel 1 due to the carrying of the copper flat wire. Moreover, since the water flow inside the outer cavity 12 is spiral as a whole, the contact between the water flow and the guide wheel 1 is relatively uniform, further improving the guide wheel 1. Cooling effect, at the same time, because the spiral baffle ring 41 is provided with a groove 411, there is local axial movement between the spiral water flows, which improves the mixing of the water flow, and a part of the water flow can quickly pass through the outer cavity 12, thereby further improving the cooling effect of the guide wheel 1. Furthermore, a spiral heat-conducting ring 421 is provided in the spiral liquid channel, and a heat-conducting plate 422 is also provided on the heat-conducting ring 421. The heat-conducting ring 421 and the heat-conducting plate 422 can further increase the contact area between the water flow and the guide wheel 1, and at the same time, further mix the flowing water flow. Therefore, this design can effectively improve the cooling effect of the guide wheel 1, avoid the generation of high-temperature heat accumulation on the guide wheel 1, and thus avoid the quality of the paint film of the enameled copper flat wire being affected by the high-temperature heat accumulation on the guide wheel 1.

[0060] In the related art, a water cooling device for a guide wheel on a vertical flat wire enameling machine oven is provided. Since the temperature of the enameled copper flat wire is high after it comes out of the oven, the guide wheel 1 will continue to be subjected to high temperature conduction when carrying the enameled copper flat wire. The cooling water flows in a spiral in the guide wheel 1, so the temperature of the cooling water will gradually rise in the process from the inlet end to the outlet end of the outer cavity 12. Conversely, the cooling water's ability to carry heat energy on the guide wheel 1 will gradually decrease from the inlet end to the outlet end, which leads to uneven cooling on the guide wheel 1.

[0061] Example 2: According to some embodiments of this application, Figure 4-Figure 8 As shown, the pitches of the spiral retaining ring 41 and the heat conducting ring 421 are symmetrically reduced from both ends to the middle, and the pitches in the middle of the two are equidistant.

[0062] The distances between the two sides of each spiral turn of the heat conducting plate 422 and the adjacent spiral turns of the spiral retaining ring 41 are the same.

[0063] It should be noted that a portion of the heat conducting ring 421 located outside the heat conducting plate 422 is evenly provided with a plurality of axial through holes along the spiral trajectory of the heat conducting ring 421 , and a plurality of radial through holes are evenly provided on the heat conducting plate 422 .

[0064] Thus, after the cooling water enters the outer cavity 12 from the first water inlet joint 242, its flow rate will change from slow to fast, then flow quickly for a distance and then gradually flow slowly, and finally flow out of the outer cavity 12 from the second water outlet joint 243. In this process, the water flow in the outer cavity 12 is further mixed due to the axial through-holes on the heat-conducting ring 421 and the radial through-holes on the heat-conducting plate 422, thereby enhancing the water flow's ability to carry heat energy. At the same time, the flow rate of the water flow in the outer cavity 12 is increased, and the cooling effect of the guide wheel 1 can be enhanced by increasing the flow rate. In this embodiment, due to the two sides of the outer cavity 12, The speed of water flow at the two ends is slower than that in the middle. Therefore, in actual use, the position of the connecting pipe between the two-way rotary joint 23 and the chiller can be swapped (the original water inlet end of the two-way rotary joint 23 is connected to the water inlet end of the chiller, so that the original water inlet end of the two-way rotary joint 23 becomes the water outlet end, and the original water outlet end of the two-way rotary joint 23 is connected to the water outlet end of the chiller, so that the original water outlet end of the two-way rotary joint 23 becomes the water inlet end, so that the water flow in the outer cavity 12 can flow in the opposite direction), to avoid the temperature on the water outlet side of the guide wheel 1 being higher than the temperature on the water inlet side under long-term use.

[0065] Embodiment 3. Of course, based on the embodiment 2 of the present application, the pitch of the spiral retaining ring 41 and the heat conducting ring 421 can also be designed to gradually decrease from one end to the other end. In this way, the water flow will form a continuous acceleration design in the outer cavity 12. In this case, there is no need to swap the position of the connecting pipe between the two-way rotary joint 23 and the chiller.

[0066] In the related art, a water cooling device for the guide wheel on the drying furnace of a vertical flat wire enameling machine is provided. When the guide wheel 1 carries the copper flat wire, the guide wheel 1 will rotate due to the conveying of the copper flat wire. Therefore, the peripheral side of the guide wheel 1 will be affected by the heat conduction of the enameled copper flat wire during the rotation process, resulting in heat accumulation on the entire guide wheel 1. Although cooling water is used in the outer cavity 12 to take away the heat energy on the guide wheel 1, the accumulated heat at the end of the guide wheel 1 cannot be effectively dissipated, and the accumulated heat at the end of the guide wheel 1 will affect the cooling effect of the outer cavity 12.

[0067] Example 4: According to some embodiments of this application, Figure 1-Figure 3 、 Figure 9 and Figure 10 As shown, multiple through holes are provided at both ends of the inner cavity 11, specifically axial through holes 13, wherein the axial through holes 13 are divided into multiple inner holes 131 and multiple outer holes 132. It should be noted that the multiple inner holes 131 are evenly arranged circumferentially, the multiple outer holes 132 are evenly arranged circumferentially, and the inner holes 131 are located on the inner side of the outer holes 132, and the two are staggered.

[0068] Among them, an auxiliary device 5 is provided in the inner cavity 11, and the auxiliary device 5 includes blades 51 and heat-conducting strips 52; specifically, the blades 51 are evenly arranged in the circumference, and the blades 51 are fixedly sleeved on the rotating shaft 2. In this way, when the guide wheel 1 rotates, it will drive the blades 51 to rotate synchronously in the same direction. It can be further understood that through the multiple inner holes 131 and multiple outer holes 132 set at the end of the inner cavity 11 and the design of the blades 51 and heat-conducting strips 52, the airflow will form an axial airflow from the inner cavity 11, which has a certain heat dissipation effect on the end and interior of the guide wheel 1, and reduces the heat accumulation on the entire guide wheel 1, and does not require additional equipment to form airflow for heat dissipation, and also has an energy-saving effect to a certain extent.

[0069] It should be noted that the heat-conducting strips 52 are evenly arranged around the circumference, and the heat-conducting strips 52 and the blades 51 correspond to each other one by one and are fixedly connected. The heat-conducting strips 52 are in contact with the inner wall of the outer cavity 12. It can be understood that the local temperature carried by the water flow in the outer cavity 12 can be conducted to the inner cavity 11 through the heat-conducting strips 52, and the airflow formed during the rotation of the blades 51 is used to dissipate it, thereby improving the cooling effect of the guide wheel 1.

[0070] Specifically, the heat conducting strips 52 are arranged in a spiral shape, and each heat conducting strip 52 does not form a complete spiral circle. Furthermore, the heat conducting strips 52 themselves have a spiral angle, and the spiral angle of the heat conducting strips 52 is 10°≤45°.

[0071] It can be understood that this design of the heat conductive strip 52 will enable it to guide the airflow while following the rotation of the blade 51, strengthen the airflow to form a relatively regular circulation in the inner cavity 11 to a certain extent, and enhance the airflow's ability to dissipate the heat energy conducted in the inner cavity 11.

[0072] It should be noted that the specific models and specifications of the bearing seat 21, the connecting sleeve 22, the bidirectional rotary joint 23, the first water outlet joint 241, the first water inlet joint 242, the second water outlet joint 243, the second water inlet joint 244 and the blade 51 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0073] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A water cooling device for the guide wheel on the drying furnace of a vertical flat wire enameling machine, characterized in that: include: A guide wheel (1), wherein an inner cavity (11) and an outer cavity (12) are coaxially arranged inside the guide wheel (1); A rotating shaft (2), the rotating shaft (2) is hollow, the rotating shaft (2) coaxially passes through the guide wheel (1) and is key-connected to the guide wheel (1); A water channel is connected between the rotating shaft (2) and the outer cavity (12), and a bidirectional rotary joint (23) is coaxially connected to the rotating shaft (2), and the bidirectional rotary joint (23) is externally connected to a chiller; A flow mixing device (4) is provided in the outer cavity (12), and the flow mixing device (4) comprises a spiral retaining ring (41) and a heat conducting member (42); The spiral retaining ring (41) divides the outer cavity (12) into a spiral liquid channel, and a plurality of notches are evenly arranged on the outer side of the spiral retaining ring (41); The heat conducting member (42) is spirally arranged on the outer side of the liquid channel, and the heat conducting member (42) is centrally arranged in the liquid channel and a distance is left between the heat conducting member (42) and the inner side of the liquid channel; A distance is left between the heat conducting member (42) and the spiral retaining ring (41).

2. The water cooling device for the guide wheel on the vertical flat wire enameling machine oven according to claim 1, characterized in that: Two bearing seats (21) are symmetrically sleeved on the rotating shaft (2), and the bearing seats (21) are fixed to the base (3).

3. The water cooling device for the guide wheel on the vertical flat wire enameling machine oven according to claim 1, characterized in that: One end of the rotating shaft (2) is connected to a connecting sleeve (22), and the connecting sleeve (22) and the bidirectional rotating joint (23) are coaxially fixedly connected.

4. A water cooling device for the guide wheel on the drying furnace of a vertical flat wire enameling machine according to claim 3, characterized in that: A liquid supply pipeline (24) is provided on the side wall of the rotating shaft (2) and the end of the guide wheel (1), and the liquid supply pipeline (24) includes: a first water outlet joint (241), the first water outlet joint (241) passing through the side wall of the rotating shaft (2) and being connected to a water outlet end of the bidirectional rotary joint (23) located in the connecting sleeve (22); a first water inlet joint (242), the first water inlet joint (242) passing through the end of the guide wheel (1) and being connected to the outer cavity (12), and being connected to the first water outlet joint (241); A second water outlet joint (243), the second water outlet joint (243) passes through the end of the guide wheel (1) and is connected to the outer cavity (12); A second water inlet joint (244) is connected to the second water outlet joint (243), and passes through the side wall of the rotating shaft (2) and is connected to the water inlet end of the bidirectional rotary joint (23) located in the connecting sleeve (22).

5. The water cooling device for the guide wheel on the drying furnace of a vertical flat wire enameling machine according to claim 4, characterized in that: The bidirectional rotary joint (23) supplies the cold water discharged from the chiller to the first water outlet joint (241), and the first water inlet joint (242) supplies the cold water to the second water outlet joint (243) and enters the outer cavity (12). The water in the outer cavity (12) enters the second water inlet joint (244) from the second water outlet joint (243) and finally flows back to the chiller through the bidirectional rotary joint (23), thereby forming a water path between the rotating shaft (2) and the outer cavity (12).

6. The water cooling device for the guide wheel on the vertical flat wire enameling machine oven according to claim 1, characterized in that: The notch on the outer side of the spiral retaining ring (41) is a groove (411), and at least one groove (411) is provided on each spiral turn of the spiral retaining ring (41), and a plurality of grooves (411) are evenly distributed along the outer side of the spiral retaining ring (41).

7. The water cooling device for the guide wheel on the drying furnace of a vertical flat wire enameling machine according to claim 1, characterized in that: The heat conducting member (42) comprises a heat conducting ring (421) and a heat conducting sheet (422), wherein the heat conducting ring (421) is fixedly connected to the side wall of the outer cavity (12) facing outward, and the heat conducting sheet (422) is fixedly connected to the heat conducting ring (421).

8. The water cooling device for the guide wheel on the drying furnace of a vertical flat wire enameling machine according to claim 7, characterized in that: The heat conducting ring (421) and the spiral retaining ring (41) have the same spiral direction, and the pitch settings of the two are also the same.

9. The water cooling device for the guide wheel on the drying furnace of a vertical flat wire enameling machine according to claim 7, characterized in that: The inner diameter of the heat-conducting ring (421) is greater than the inner diameter of the outer cavity (12).

10. The water cooling device for the guide wheel on the drying furnace of a vertical flat wire enameling machine according to claim 7, characterized in that: The heat conducting sheet (422) is centrally arranged on the heat conducting ring (421), and the heat conducting ring (421) is centrally arranged on the heat conducting ring (421).

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