A noise reduction blowing device for an enameled wire oven

Abstract

The application provides a noise reduction blowing device of an enameled wire oven, and belongs to the technical field of enameled wire processing equipment. The noise reduction blowing device of the enameled wire oven comprises an enameled wire, a wind box and a box cover. Air inlet pipes and air outlet pipes are fixedly connected to both ends of the wind box. A plurality of U-shaped openings are formed in both ends of the wind box. The enameled wire penetrates through the wind box through the U-shaped openings. Sealing pieces are inserted into the U-shaped openings. The sealing pieces comprise rubber strips and elastic strips. The elastic strips are fixedly connected to the rubber strips. A strip-shaped groove is formed in the rubber strip. The rubber strip is bent into a U shape, so that the strip-shaped groove is bent into a U-shaped groove and clamped in the U-shaped opening. The elastic strip can reduce the vibration of the enameled wire and thus reduce noise. The sealing piece can also reduce the gap between the enameled wire and the wind box and reduce the noise. The elastic strip is fixed on the rubber strip and clamped in the U-shaped opening through the U-shaped groove, so that the sealing piece can be conveniently replaced.

Description

Technical Field

[0001] This application relates to the technical field of enameled wire processing equipment, and more specifically, to a noise reduction blowing device for enameled wire baking ovens. Background Technology

[0002] After being baked in an oven, the enameled wire reaches a high temperature and requires forced cooling.

[0003] In response, Chinese patent application number CN201710415119.9 discloses a cooling device for enameled wire after coating and baking. The main solution is that when the enameled wire passes through the air box, the blower blows air into the air box and the exhaust fan draws air out of the air box, thereby forming a cold air circulation. When the cold air blows over the surface of the enameled wire, it carries away its heat, thereby achieving the effect of cooling.

[0004] However, in the process of implementing the technical solution in the embodiments of this application, the inventors of this application discovered that the above-mentioned technology has at least the following technical problems: Enameled wires have a certain tension during transmission. When airflow blows across the enameled wires, it will cause vibration, which in turn generates noise. The noise is amplified by the bellows and overflows from both ends of the bellows, affecting the production environment. Summary of the Invention

[0005] To overcome the above deficiencies, this application provides a noise reduction blowing device for enameled wire baking ovens, which aims to improve the problems mentioned in the background art.

[0006] This application provides a noise reduction blowing device for an enameled wire baking oven, including an enameled wire, a bellows, and a cover. An air inlet pipe and an air outlet pipe are fixedly connected to both ends of the bellows. Several U-shaped openings are provided at both ends of the bellows. The enameled wire passes through the bellows via the U-shaped openings. A sealing element is inserted into each U-shaped opening. The sealing element includes a rubber strip and an elastic strip. The elastic strip is fixedly connected to the rubber strip. A strip-shaped groove is provided on the rubber strip. The rubber strip is bent into a U-shape, causing the strip-shaped groove to bend into a U-shaped groove, which is then locked within the U-shaped opening. The elastic strip clamps the enameled wire.

[0007] In one specific implementation, the air inlet pipe includes a flange pipe and an expansion pipe, and the flange pipe is fixedly connected to the lower end of the air box through the expansion pipe.

[0008] In one specific implementation, a flow divider is provided inside the expansion tube, and a baffle plate corresponding to the flow divider is fixedly connected inside the air box.

[0009] In the above process, the external cooling equipment supplies cold air through the flange pipe. The airflow is divided into multiple airflows by the diverter plate in the expansion pipe and flows with the corresponding enameled wire, ensuring that the airflow flows stably in the air box, reducing the impact on the enameled wire, and thus reducing vibration.

[0010] In one specific implementation, the inner surface of the box lid is lined with sound-absorbing cotton, and the partition abuts against the sound-absorbing cotton.

[0011] In the above process, sound insulation cotton is used to reduce noise inside the bellows, and the partition plate is pressed against the sound insulation cotton to reduce the vibration of the partition plate.

[0012] In one specific implementation, guide rollers are rotatably connected to both the box cover and the air box.

[0013] In the above implementation process, it is used to guide the enameled wire and reduce the vibration of the enameled wire.

[0014] In one specific implementation, the guide roller at the air inlet pipe is located on the box cover, and the guide roller at the air outlet pipe is located inside the air box.

[0015] In the above implementation process, the position of the guide roller is set according to the airflow direction so that the airflow blows the enameled wire against the guide roller. The guide roller is provided with a V-shaped roller groove, which is used to restrict the enameled wire to reduce vibration.

[0016] In one specific implementation, both the bellows and the bellows are fixedly connected with lugs, and the corresponding lugs are connected with screws.

[0017] In one specific implementation, a positioning ring and a positioning groove are respectively provided on the two corresponding lugs.

[0018] In the above process, the positioning ring is used to lock in the positioning groove to achieve the positioning of the box cover and the air box. The screws are used to fix the support ears together to achieve the detachable connection of the box cover. The box cover is used to fix the seal in the U-shaped groove.

[0019] Compared with the prior art, the beneficial effects of this application are: the elastic strip can reduce the vibration of the enameled wire, thereby reducing noise; the seal can also reduce the gap between the enameled wire and the bellows, reducing noise leakage; the elastic strip is fixed on the rubber strip and is inserted into the U-shaped opening through the U-shaped groove, realizing convenient replacement of the seal. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the noise reduction blowing device for enameled wire baking oven provided in the embodiments of this application; Figure 2 A schematic diagram of the internal structure of the bellows provided for an embodiment of this application; Figure 3 A schematic diagram of the cross-sectional structure of the bellows provided in this application embodiment; Figure 4 A schematic diagram illustrating the connection relationship between the box cover and the guide roller provided in this application embodiment; Figure 5 The diagram shows the structure of the seal provided in the embodiments of this application in the unused state and the bent state.

[0022] In the diagram: 10-Enameled wire; 20-Blowbox; 21-Inlet duct; 211-Flange; 212-Expansion duct; 213-Diverter plate; 22-Outlet duct; 23-U-shaped opening; 24-Baffle plate; 30-Box cover; 31-Sound insulation cotton; 40-Sealing element; 41-Rubber strip; 42-Elastic strip; 43-Strip groove; 50-Guide roller; 60-Support lug; 61-Positioning ring. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0024] Please see Figures 1-5 This application provides a noise reduction blowing device for an enameled wire baking oven, including an enameled wire 10, a blower box 20, and a cover 30. The blower box 20 is fixedly connected to an air inlet pipe 21 and an air outlet pipe 22 at both ends. Several U-shaped openings 23 are provided at both ends of the blower box 20. The enameled wire 10 passes through the blower box 20 through the U-shaped openings 23. A sealing element 40 is inserted into the U-shaped opening 23. The sealing element 40 includes a rubber strip 41 and an elastic strip 42. The elastic strip 42 is fixedly connected to the rubber strip 41. A strip groove 43 is provided on the rubber strip 41. The rubber strip 41 is bent into a U-shape, so that the strip groove 43 is bent into a U-groove and stuck in the U-shaped opening 23. The elastic strip 42 clamps the enameled wire 10. Among them, the elastic strip 42 can reduce the vibration of the enameled wire 10, thereby reducing noise; the seal 40 can also reduce the gap between the enameled wire 10 and the bellows 20, reducing noise leakage; the elastic strip 42 is fixed on the rubber strip 41 and is inserted into the U-shaped opening 23 through the U-shaped groove, realizing the convenient replacement of the seal 40.

[0025] Please see Figures 1-5The air inlet duct 21 includes a flange duct 211 and an expansion duct 212. The flange duct 211 is fixedly connected to the lower end of the air box 20 through the expansion duct 212. A flow divider 213 is installed inside the expansion duct 212, and a baffle 24 is fixedly connected inside the air box 20, corresponding to the flow divider 213. An external cooling air device supplies cooling air through the flange duct 211. The airflow is divided into multiple airflows by the flow divider 213 in the expansion duct 212, which flow with the corresponding enameled wire 10, ensuring stable airflow in the air box 20 and reducing impact on the enameled wire 10 to reduce vibration.

[0026] Please see Figures 1-5 The cover 30 is lined with sound insulation cotton 31, and the partition 24 abuts against the sound insulation cotton 31. The sound insulation cotton 31 reduces noise inside the bellows 20, and the partition 24 abuts against the sound insulation cotton 31 to reduce the vibration of the partition 24.

[0027] Please see Figures 1-5 Guide rollers 50 are rotatably connected inside both the cover 30 and the bellows 20. These rollers are used to guide the enameled wire 10 and reduce vibration of the enameled wire 10.

[0028] Please see Figures 1-5 The guide roller 50 at the air inlet pipe 21 is located on the box cover 30, and the guide roller 50 at the air outlet pipe 22 is located inside the air box 20. The position of the guide roller 50 is set according to the airflow direction so that the airflow blows the enameled wire 10 against the guide roller 50. The guide roller 50 is provided with a V-shaped roller groove, which is used to restrict the enameled wire 10 to reduce vibration.

[0029] Please see Figures 1-5 Both the bellows 20 and the bellows 20 are fixedly connected to each other with lugs 60, which are connected by screws. Each of the two lugs 60 has a positioning ring 61 and a positioning groove. The positioning ring 61 is engaged in the positioning groove to position the cover 30 and the bellows 20. The lugs 60 are fixed together with screws to achieve a detachable connection of the cover 30, and the cover 30 is used to fix the seal 40 in the U-shaped groove.

[0030] The working principle of the noise reduction blowing device for the enameled wire oven is as follows: The elastic strip 42 is made of silicone sponge and can withstand high temperatures above 200 degrees Celsius for a long time. If the temperature of the enameled wire 10 is too high, a water cooling mechanism as described in the background technology can be set in the preceding step to reduce the temperature of the enameled wire 10 to below 200 degrees Celsius. The sealing element 40 is bent and inserted into the U-shaped groove. The enameled wire 10 is inserted into the sealing element 40. The box cover 30 is fixed on the air box 20. When the enameled wire 10 is being transported, cold air enters the air box 20 from the air inlet pipe 21 and then flows out from the air outlet pipe 22. The airflow cools the enameled wire 10. Part of the airflow blows the enameled wire 10 radially, causing vibration. The elastic strip 42 is fixed on the rubber strip 41. The elastic strip 42 can dampen the vibration of the enameled wire 10. Since the silicone sponge is constantly rubbing against the enameled wire 10, it is a vulnerable part. It is inserted into the U-shaped opening 23 through the U-shaped groove, which facilitates the replacement of the sealing element 40.

[0031] In summary, the elastic strip 42 can reduce the vibration of the enameled wire 10, thereby reducing noise; the seal 40 can also reduce the gap between the enameled wire 10 and the bellows 20, reducing noise leakage; the elastic strip 42 is fixed on the rubber strip 41 and is inserted into the U-shaped opening 23 through the U-shaped groove, realizing convenient replacement of the seal 40.

[0032] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, improvements, or equivalent substitutions made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. A noise reduction blowing device for an enameled wire drying oven, characterized in that, The device includes an enameled wire (10), a bellows (20), and a cover (30). The bellows (20) has an air inlet pipe (21) and an air outlet pipe (22) fixedly connected at both ends. The bellows (20) has several U-shaped openings (23) at both ends. The enameled wire (10) passes through the bellows (20) through the U-shaped openings (23). A sealing element (40) is inserted into the U-shaped opening (23). The sealing element (40) includes a rubber strip (41) and an elastic strip (42). The elastic strip (42) is fixedly connected to the rubber strip (41). The rubber strip (41) has a strip groove (43). The rubber strip (41) is bent into a U-shape, so that the strip groove (43) is bent into a U-shaped groove and stuck in the U-shaped opening (23). The elastic strip (42) clamps the enameled wire (10).

2. The noise reduction blowing device for an enameled wire baking oven according to claim 1, characterized in that, The air inlet pipe (21) includes a flange pipe (211) and an expansion pipe (212). The flange pipe (211) is fixedly connected to the lower end of the air box (20) through the expansion pipe (212).

3. The noise reduction blowing device for enameled wire baking oven according to claim 2, characterized in that, A diverter plate (213) is provided inside the expansion tube (212), and a partition plate (24) is fixedly connected inside the air box (20) corresponding to the diverter plate (213).

4. The noise reduction blowing device for enameled wire baking oven according to claim 3, characterized in that, The lid (30) is lined with sound insulation cotton (31), and the partition (24) abuts against the sound insulation cotton (31).

5. The noise reduction blowing device for an enameled wire baking oven according to claim 4, characterized in that, Guide rollers (50) are rotatably connected inside both the box cover (30) and the air box (20).

6. The noise reduction blowing device for an enameled wire baking oven according to claim 5, characterized in that, The guide roller (50) at the air inlet pipe (21) is located on the box cover (30), and the guide roller (50) at the air outlet pipe (22) is located inside the air box (20).

7. The noise reduction blowing device for enameled wire baking oven according to claim 6, characterized in that, Both the bellows (20) and the bellows (20) are fixedly connected with lugs (60), and the corresponding lugs (60) are screwed together.

8. The noise reduction blowing device for enameled wire baking oven according to claim 7, characterized in that, The two corresponding lugs (60) are respectively provided with positioning rings (61) and positioning grooves.

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