Cooling air ring

Abstract

The utility model relates to the technical field of air rings, in particular to a cooling air ring which comprises an outer shell assembly, an air channel assembly and an air channel adjusting assembly used for adjusting the air outlet angle of the air channel assembly, the air channel assembly and the air channel adjusting assembly are both arranged in the outer shell assembly, and a feeding port capable of enabling material blanks to pass through is formed in the bottom of the outer shell assembly. The top of the shell assembly is provided with a discharging port allowing blanks to pass through, the side wall of the shell assembly is provided with an air inlet connector capable of being connected with an air blower, the air duct assembly is provided with an air duct, an air inlet of the air duct faces the side wall of the shell assembly, and an air outlet of the air duct faces the axis of the shell assembly. And the cooling effect on the material blank can be more accurately controlled.

Description

Technical Field

[0001] This utility model relates to the field of air ring technology, and more specifically, to a cooling air ring. Background Technology

[0002] Commonly used cooling air rings have a simple structure and single function. They are mostly circular metal air-blowing rings with uniform gaps or tightly packed holes for conveying cold compressed air. Their outlet angle is usually fixed. If the angle is small, the outlet direction is perpendicular to the extrusion direction of the billet, and the cooling surface is mainly concentrated near the outlet, resulting in a limited cooling range and limited cooling time for the pipe, thus failing to effectively reduce the billet temperature. If the angle is large, the outlet direction is close to the extrusion direction of the billet, providing a wide cooling surface coverage and a long cooling time, often causing the billet temperature to drop too quickly, making it impossible to effectively control the billet cooling temperature. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology in that the air outlet angle of the air ring cannot be adjusted, and to provide a cooling air ring that can adjust the air outlet angle of the air ring to better control the cooling effect of the material blank.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A cooling air ring is provided, including a housing assembly, an air duct assembly, and an air duct adjustment assembly for adjusting the air outlet angle of the air duct assembly. The air duct assembly and the air duct adjustment assembly are both disposed in the housing assembly. The bottom of the housing assembly is provided with a feed inlet for passing through a material blank, and the top of the housing assembly is provided with a discharge outlet for passing through a material blank. The side wall of the housing assembly is provided with an air inlet for connecting a blower. The air duct assembly is provided with an air duct, the air inlet of the air duct facing the side wall of the housing assembly, and the air outlet of the air duct facing the axis of the housing assembly.

[0006] The cooling air ring of this utility model has an air duct angle, which refers to the angle between the air outlet direction of the air duct and the end face of the outer shell assembly. When cooling the blank, the blank enters the outer shell assembly through the feed port, and the blower blows air into the outer shell assembly through the air inlet. According to the production needs, the air outlet angle of the air duct assembly is adjusted to a suitable value using the air duct adjustment component. The airflow enters the air duct through the air inlet and blows onto the blank at a specific angle through the air outlet for cooling. After cooling is completed, the blank is led out of the outer shell assembly from the discharge port. By adjusting the air outlet direction of the air duct assembly, the cooling effect on the blank can be controlled more precisely.

[0007] Furthermore, the air duct assembly is provided with multiple air ducts with different air outlet angles. The air duct adjustment assembly includes a windproof ring capable of blocking the air ducts and an adjustment mechanism for adjusting the position of the windproof ring. According to the required air outlet angle, the position of the windproof ring is adjusted by the adjustment mechanism, causing the windproof ring to block part of the air duct, thus closing part of the air duct. Moving the windproof ring away from the air duct at a specific angle opens the air duct at that specific angle. By selecting to open a specific air duct and closing other air ducts, the air outlet angle of the air duct assembly can be quickly switched, meeting the air outlet requirements of different angles without the need for slow adjustment of the angle of individual air ducts, simplifying operation and improving work efficiency.

[0008] Furthermore, the adjustment mechanism includes an adjustment rod and a guide post. The guide post is disposed on the end face of the wind shield ring and is slidably connected to the inner end face of the outer casing assembly. The adjustment rod passes through the outer casing assembly and is movably connected to it. The end face of the wind shield ring has a protrusion extending axially along the wind shield ring, and the protrusion has an adjustment hole through which the adjustment rod passes. When switching the airflow direction of the cooling air ring, the adjustment rod interferes with the adjustment hole, causing the wind shield ring to slide relative to the outer casing assembly, thereby opening and closing the air duct.

[0009] Furthermore, it also includes a reset mechanism, which is installed within the housing assembly, and the wind shield ring is connected to the reset mechanism. When it is necessary to close the air duct, so that the adjusting rod no longer interferes with the adjusting hole, the reset mechanism resets the wind shield ring, allowing it to re-close onto the corresponding air duct.

[0010] Furthermore, the axes of the adjusting holes on several of the aforementioned windproof rings coincide. Each adjusting hole is either an arc-shaped hole or a semi-circular hole, comprising an arc segment and a straight segment. The straight segment has a groove that mates with a protrusion. An adjusting rod is provided, and the adjusting rod has protrusions distributed circumferentially and axially offset along the rod. The axis of the adjusting rod coincides with the axis of the arc segment, and the protrusions abut against the arc segment. By rationally designing the shape of the adjusting holes and the angles between the protrusions, during the rotation of the adjusting rod, one protrusion contacts the straight segment of the corresponding adjusting hole, pushing the straight segment and separating the corresponding windproof ring from the corresponding air duct. The protrusion moves along the straight segment until it engages in the groove, at which point the rotation of the adjusting rod stops, and the windproof ring remains separated from the corresponding air duct, opening the corresponding air duct. Other protrusions move along the arc segment without interfering with the adjusting holes, and the position of the windproof ring remains unchanged. When switching air ducts again, the adjusting rod continues to rotate, causing the protrusions to disengage from the grooves and move along the straight segment. When the segment moves until it leaves the straight section, the reset mechanism resets the wind shield ring, allowing it to re-cover the corresponding air duct. Another protrusion then disengages from the arc section and contacts the straight section, opening the air duct at another angle. This enables switching between air ducts at different angles. Each time the air duct is switched, only one air duct is open, while the others are closed, preventing airflows from different angles from interfering with each other and affecting the cooling effect. The groove in the straight section limits the position of the protrusion, preventing the corresponding wind shield ring from automatically resetting without rotating the adjustment rod after the air duct is opened.

[0011] Furthermore, the air duct assembly includes multiple air duct plates, each of which is an annular plate. The air duct plates are installed inside the housing assembly, and the air ducts are located between adjacent air duct plates. The airflow entering the housing assembly is blocked by the air duct plates, guided along the air duct plates into the air ducts between adjacent air duct plates, and then blown through the air ducts towards the material blank entering the housing assembly.

[0012] Furthermore, the air duct assembly also includes a limiting ring and bolts. The air duct plate and the outer casing assembly have threaded holes that mate with the bolts. The inner side of the limiting ring has threads that mate with the bolts. The bolts pass through the threaded holes and the limiting rings. The limiting rings and the air duct plate are staggered along the axial direction of the bolts, and the limiting rings abut against adjacent air duct plates. During installation of the air duct assembly, the positions of the air duct plate and the limiting rings are adjusted so that they are staggered. The bolts are then passed through the air duct plate, the limiting rings, and the outer casing assembly in sequence and tightened to complete the installation of the air duct assembly. The limiting rings serve to limit the movement of the air duct plate during use.

[0013] Furthermore, the system comprises four air duct plates: a first air duct plate, a second air duct plate, a third air duct plate, and a fourth air duct plate. A first air duct is provided between the first air duct plate and the second air duct plate; a second air duct is provided between the second air duct plate and the third air duct plate; a third air duct is provided between the third air duct plate and the fourth air duct plate; and a fourth air duct is provided between the fourth air duct plate and the housing assembly. The four air ducts allow the cooling air ring to quickly switch between four air outlet angles.

[0014] Furthermore, the outer casing assembly includes an outer casing body and a cover plate. The feed inlet is located at the bottom of the outer casing body, the air inlet is located on the side wall of the outer casing body, the adjusting rod passes through the side wall of the outer casing body, the cover plate is fixedly installed on the top opening of the outer casing body, the discharge port is located on the cover plate, and the wall surface of the cover plate opposite to the bottom of the outer casing body is provided with a boss extending towards the bottom of the outer casing body and several positioning sleeves. The guide post is slidably installed in the positioning sleeves, and the adjusting rod is rotatably connected to the boss. When installing the cooling air ring, the air duct assembly and air duct adjustment assembly are installed in the outer casing body, and the cover plate is installed on the top opening of the outer casing body to complete the installation. The cover plate serves to protect the inside of the outer casing assembly and extend the service life of the air duct assembly and air duct adjustment assembly.

[0015] Furthermore, a pressure control valve is also provided on the side wall of the main body of the outer casing. The air pressure of the cooling air ring can be adjusted by adjusting the opening degree of the pressure control valve according to the cooling needs.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The cooling air ring of this utility model: 1. By adjusting the air outlet direction of the air duct assembly, the cooling effect on the material blank can be controlled more precisely; 2. The air duct assembly is provided with several air ducts at different angles. By selecting a specific angle air duct to open and closing other air ducts, the air outlet angle of the air duct assembly can be quickly switched; 3. By ensuring the overlap between the movement trajectory of the protrusion and the contour of the adjustment hole, only one air duct can be opened each time the air duct is switched, while the others are closed, preventing the airflow from different angle air ducts from interfering with each other and affecting the cooling effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the cooling air ring structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the air duct plate assembly of the cooling air ring of this utility model;

[0020] Figure 3 This is a first structural schematic diagram of the air duct adjustment component of the cooling air ring of this utility model;

[0021] Figure 4 This is a schematic diagram of the second structure of the air duct adjustment component of the cooling air ring of this utility model;

[0022] Figure 5 This is a schematic diagram of the adjustment hole structure of the cooling air ring of this utility model;

[0023] In the attached diagram: 1. Outer shell assembly; 11. Outer shell body; 111. Air inlet; 112. Pressure control valve; 113. Wind baffle; 12. Cover plate; 121. Positioning sleeve; 122. Annular boss; 2. Air duct assembly; 21. Air duct plate; 211. First air duct plate; 212. Second air duct plate; 213. Third air duct plate; 214. Fourth air duct plate; 22. Air duct; 23. Limiting ring; 24. Bolt; 3. Air duct adjustment assembly; 31. Wind shield ring; 311. Adjustment hole; 3111. Arc segment; 3112. Straight segment; 32. Adjustment mechanism; 321. Adjustment rod; 3211. Protrusion; 322. Guide column; 33. Reset mechanism. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0025] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0026] Example 1

[0027] like Figures 1 to 5The first embodiment of the cooling air ring of this utility model is shown. A cooling air ring is provided, including a housing assembly 1, an air duct assembly 2, and an air duct adjustment assembly 3 for adjusting the air outlet angle of the air duct assembly 2. The air duct assembly 2 and the air duct adjustment assembly 3 are both disposed in the housing assembly 1. The bottom of the housing assembly 1 is provided with a feed inlet that allows the material blank to pass through, and the top of the housing assembly 1 is provided with a discharge outlet that allows the material blank to pass through. The side wall of the housing assembly 1 is provided with an air inlet interface 111 that can be connected to a blower. The air duct assembly 2 is provided with an air duct 22. The air inlet of the air duct 22 faces the side wall of the housing assembly 1, and the air outlet of the air duct 22 faces the axis of the housing assembly 1.

[0028] In this utility model, the angle of the cooling air ring duct 22 refers to the angle between the air outlet direction of the air duct 22 and the end face of the outer shell assembly 1. When cooling the blank, the blank enters the outer shell assembly 1 through the feed port, and the blower blows air into the outer shell assembly 1 through the air inlet 111. According to the production needs, the air outlet angle of the air duct 22 of the air duct assembly 2 is adjusted to a suitable value by the air duct adjustment assembly 3. The airflow enters the air duct 22 through the air inlet and blows the blank at a specific angle through the air outlet of the air duct 22 for cooling. After cooling is completed, the blank is led out of the outer shell assembly 1 from the discharge port. By adjusting the air outlet direction of the air duct assembly 2, the cooling effect on the blank can be controlled more precisely.

[0029] like Figure 1 and Figure 2 As shown, the air duct assembly 2 is provided with multiple air ducts 22 with different air outlet angles. The air duct adjustment assembly 3 includes a windproof ring 31 that can block the air ducts 22 and an adjustment mechanism 32 for adjusting the position of the windproof ring 31. According to the required air outlet angle, the position of the windproof ring 31 is adjusted by the adjustment mechanism 32, so that the windproof ring 31 blocks part of the air duct 22, closing part of the air duct 22. Moving the windproof ring 31 away from the air duct 22 at a specific angle opens the air duct 22 at that specific angle. By selecting the opening of the air duct 22 at a specific angle and closing other air ducts 22, the air outlet angle of the air duct assembly 2 can be quickly switched, meeting the air outlet requirements of different angles without the need for slow adjustment of the angle of individual air ducts 22, simplifying operation and improving work efficiency.

[0030] like Figure 1 , Figure 3 and Figure 4As shown, the adjustment mechanism 32 includes an adjustment rod 321 and a guide post 322. The guide post 322 is disposed on the end face of the wind shield ring 31 and is slidably connected to the inner end face of the outer casing assembly 1. The adjustment rod 321 passes through the outer casing assembly 1 and is movably connected to it. The end face of the wind shield ring 31 has a protrusion extending axially along the wind shield ring 31, and the protrusion has an adjustment hole 311. The adjustment rod 321 passes through the adjustment hole 311. When switching the air outlet direction of the cooling air ring, the adjustment rod 321 interferes with the adjustment hole 311, causing the wind shield ring 31 to slide relative to the outer casing assembly 1, thereby realizing the opening and closing of the air duct 22.

[0031] like Figure 4 As shown, the air duct adjustment assembly 3 also includes a reset mechanism 33, which is installed inside the housing assembly 1. The wind shield ring 31 is connected to the reset mechanism 33. When it is necessary to close the air duct 22, the reset mechanism 33 resets the wind shield ring 31 so that it no longer interferes with the adjustment hole 311, and then re-closes the corresponding air duct 22. In this embodiment, the reset mechanism 33 is a spring, which is sleeved on the guide post 322.

[0032] like Figure 5As shown, the axes of the adjustment holes 311 on several windproof rings 31 coincide. The adjustment holes 311 are either bow-shaped holes or semi-circular holes. The adjustment holes 311 include arc segments 3111 and straight segments 3112. The straight segments 3112 are provided with grooves that cooperate with the protrusions 3211. An adjustment rod 321 is provided. The adjustment rod 321 is provided with protrusions 3211 that are staggered along the circumference and axial direction of the adjustment rod 321. The axis of the adjustment rod 321 coincides with the axis of the arc segments 3111. The protrusions 3211 abut against the arc segments 3111. By rationally designing the shape of the adjusting hole 311 and the angle between the protrusions 3211, during the rotation of the adjusting rod 321, one protrusion 3211 contacts the straight section 3112 of the corresponding adjusting hole 311, pushing the straight section 3112 and causing the corresponding windproof ring 31 to separate from the corresponding air duct 22. The protrusion 3211 moves along the straight section 3112 until it is engaged in the groove, at which point the rotation of the adjusting rod 321 stops, the windproof ring 31 remains separated from the corresponding air duct 22, and the corresponding air duct 22 opens. Other protrusions 3211 move along the arc section 3111 without interfering with the adjusting hole 311, and the position of the windproof ring 31 remains unchanged. When switching the air duct 22 again, the adjusting rod 321 continues to rotate, causing the protrusions 3211 to... When the device moves away from the groove and along the straight section 3112 until it leaves the straight section 3112, the reset mechanism 33 resets the wind shield ring 31 and re-covers the corresponding air duct 22. Another protrusion 3211 disengages from the arc section 3111 and contacts the straight section 3112, opening the air duct 22 at another angle. This allows for switching between air ducts 22 at different angles. Each time the air duct 22 is switched, only one air duct 22 is open, while the others are closed, preventing airflows from different angles from interfering with each other and affecting the cooling effect. The groove in the straight section 3112 limits the protrusion 3211, preventing the corresponding wind shield ring 31 from automatically resetting without the rotating adjustment rod 321 after the air duct 22 is opened.

[0033] In this embodiment, the groove is located in the middle of the straight section 3112. When the protrusion 3211 is inserted into the groove, the protrusion 3211 is perpendicular to the straight section 3112. The adjusting hole 311 is a semi-circular hole, and the adjusting rod 321 is provided with four protrusions 3211. The included angle between adjacent protrusions 3211 in the circumferential direction of the adjusting rod 321 is 90°. Figure 4 As shown.

[0034] The working principle of the cooling air ring in this embodiment is as follows: When cooling the blank, the blank enters the outer shell assembly 1 through the feed port. The blower blows air into the outer shell assembly 1 through the air inlet 111. According to the required air outlet angle, the adjusting rod 321 is rotated, and the movement of the protrusion 3211 interferes with the adjusting hole 311, causing the wind shielding ring 31 to slide relative to the outer shell assembly 1, blocking or opening the air duct 22, so that the air duct 22 at a specific angle is kept open, and the other air ducts 22 are closed. The airflow enters the air duct 22 through the air inlet of the air duct 22, and blows the blank at a specific angle through the air outlet of the air duct 22 for cooling. After cooling is completed, the blank is led out of the outer shell assembly 1 from the discharge port.

[0035] Example 2

[0036] This embodiment is the second embodiment of the cooling air ring of this utility model. This embodiment is similar to the first embodiment, except that, as shown in the following... Figure 1 and Figure 2 As shown, the air duct assembly 2 includes multiple air duct plates 21, each of which is an annular plate. The air duct plates 21 are installed inside the housing assembly 1, and the air ducts 22 are located between adjacent air duct plates 21. The airflow entering the housing assembly 1 is blocked by the air duct plates 21 and guided along the air duct plates 21 into the air ducts 22 between adjacent air duct plates 21, and then blown through the air ducts 22 towards the material blank entering the housing assembly 1.

[0037] like Figure 2 As shown, the air duct assembly 2 also includes a limiting ring 23 and a bolt 24. The air duct plate 21 and the outer casing assembly 1 are provided with threaded holes that mate with the bolt 24. The inner side of the limiting ring 23 is provided with threads that mate with the bolt 24. The bolt 24 passes through the threaded holes and the limiting ring 23. The limiting ring 23 and the air duct plate 21 are arranged alternately along the axial direction of the bolt 24. The limiting ring 23 abuts against the adjacent air duct plate 21. When installing the air duct assembly 2, adjust the positions of the air duct plate 21 and the limiting ring 23 so that they are arranged alternately. Pass the bolt 24 sequentially through the air duct plate 21, the limiting ring 23, and the outer casing assembly 1, and tighten it to complete the installation of the air duct assembly 2. The limiting ring 23 serves to limit the movement of the air duct plate 21 during use.

[0038] Four air duct plates 21 are provided, namely a first air duct plate 211, a second air duct plate 212, a third air duct plate 213, and a fourth air duct plate 214. A first air duct is provided between the first air duct plate 211 and the second air duct plate 212; a second air duct is provided between the second air duct plate 212 and the third air duct plate 213; a third air duct is provided between the third air duct plate 213 and the fourth air duct plate 214; and a fourth air duct is provided between the fourth air duct plate 214 and the outer casing assembly 1. The four air ducts 22 allow the cooling air ring to quickly switch between four air outlet angles.

[0039] In this embodiment, the angle of the first air duct is 15°, the angle of the second air duct is 30°, the angle of the third air duct is 45°, and the angle of the fourth air duct is 60°. Four wind-shielding rings 31 are provided, namely the first wind-shielding ring 31, the second wind-shielding ring 31, the third wind-shielding ring 31, and the fourth wind-shielding ring 31. The width of the wind-shielding ring 31 is equal to the sum of the thickness of the air duct plate 21 and the width of the air duct 22, ensuring that the wind-shielding ring 31 can block the air duct 22. The inner wall of the wind-shielding ring 31 covers the outer wall of the corresponding air duct plate 21 and the outlet of the air duct 22.

[0040] The adjustment holes 311 of the first windproof ring 31, the second windproof ring 31, the third windproof ring 31, and the fourth windproof ring 31 are respectively referred to as the first adjustment hole 311, the second adjustment hole 311, the third adjustment hole 311, and the fourth adjustment hole 311. The protrusions 3211 that move in each adjustment hole 311 are respectively referred to as the first protrusion 3211, the second protrusion 3211, the third protrusion 3211, and the fourth protrusion 3211.

[0041] The working principle of the cooling air ring in this embodiment is as follows: The blank is fed into the outer shell assembly 1 through the feed port; according to the cooling requirements, a suitable air outlet angle is selected. Taking the air outlet angle from 15° to 30° as an example, the adjusting rod 321 is rotated, and the protrusion 3211 on the adjusting rod 321 moves with the adjusting rod 321. The third protrusion 3211 and the fourth protrusion 3211 move along the arc segment 3111. The third wind shield ring 31 and the fourth wind shield ring 31 are not interfered with by the protrusion and their positions remain unchanged; the first protrusion 3211 starts from a position perpendicular to the straight segment 3112 and moves along the straight segment 3112 of the first adjusting hole 311 until it is separated from the straight segment 3112. The spring pushes the first wind shield ring. When the first protrusion 3211 slides into the first air duct, it no longer interferes with the first adjustment hole 311 when it contacts the arc segment 3111. The first windproof ring 31 covers the first air duct, and the first air duct is closed. At the same time, the second protrusion 3211 starts from the junction of the arc segment 3111 and the straight segment 3112 and moves along the straight segment 3112. It pushes the second windproof ring 31 to overcome the elastic force of the spring through the adjustment hole 311 and slides away from the second air duct. The second air duct is opened. When the second protrusion 3211 is perpendicular to the straight segment 3112, the distance between the second windproof ring 31 and the second air duct reaches the maximum. The second air duct is fully opened, and the air outlet angle of the cooling air ring switches from 15° to 30°.

[0042] Example 3

[0043] This embodiment is the third embodiment of the cooling air ring of this utility model. This embodiment is similar to embodiment two, except that, as Figure 1 As shown, the outer casing assembly 1 includes an outer casing body 11 and a cover plate 12. The feed inlet is located at the bottom of the outer casing body 11, the air inlet 111 is located on the side wall of the outer casing body 11, the adjusting rod 321 passes through the side wall of the outer casing body 11, the cover plate 12 is fixedly installed on the top opening of the outer casing body 11, and the discharge port is located on the cover plate 12. When installing the cooling air ring, the air duct assembly 2 and the air duct adjusting assembly 3 are installed in the outer casing body 11, and the cover plate 12 is installed on the top opening of the outer casing body 11 to complete the installation. The cover plate 12 protects the interior of the outer casing assembly 1 and extends the service life of the air duct assembly 2 and the air duct adjusting assembly 3.

[0044] like Figure 3 and Figure 4As shown, the cover plate 12 has an annular boss 122 extending towards the bottom of the outer shell 11 and several positioning sleeves 121 on the wall surface opposite to the bottom of the outer shell 11. The guide post 322 is slidably installed in the positioning sleeve 121, and the adjusting rod 321 is rotatably connected to the boss. An annular baffle 113 extending towards the cover plate 12 is provided on the edge of the feed inlet of the outer shell 11. An air duct 22 is provided between the baffle 113 and the adjacent air duct plate 21. In this embodiment, the fourth air duct is provided between the baffle 113 and the fourth air duct plate 214. The air duct plate 21, the outer shell 11 and the cover plate 12 are all provided with screw holes. The bolt 24 passes through the screw holes on the cover plate 12, the air duct plate 21 and the outer shell 11 in sequence. The nut is screwed on the end of the bolt 24 to complete the installation of the air duct plate 21 and the outer shell assembly 1.

[0045] A pressure control valve 112 is also provided on the side wall of the outer casing 11. The air pressure inside the outer casing 11 can be adjusted by adjusting the opening degree of the pressure control valve 112 according to the cooling needs, thereby adjusting the outlet air pressure of the cooling air ring. When it is necessary to increase the outlet air pressure, the pressure control valve 112 is closed, and when it is necessary to decrease the outlet air pressure, the pressure control valve 112 is opened.

[0046] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A cooling air ring characterized in that, The assembly includes a housing assembly (1), a duct assembly (2), and a duct adjustment assembly (3) for adjusting the air outlet angle of the duct assembly (2). The duct assembly (2) and the duct adjustment assembly (3) are both disposed in the housing assembly (1). The bottom of the housing assembly (1) is provided with a feed inlet that allows the material blank to pass through, and the top of the housing assembly (1) is provided with a discharge outlet that allows the material blank to pass through. The side wall of the housing assembly (1) is provided with an air inlet interface (111) that can be connected to a blower. The duct assembly (2) is provided with a duct (22). The air inlet of the duct (22) faces the side wall of the housing assembly (1), and the air outlet of the duct (22) faces the axis of the housing assembly (1).

2. Cooling air ring according to claim 1, characterized in that The air duct assembly (2) is provided with multiple air ducts (22) with different air outlet angles. The air duct adjustment assembly (3) includes a windproof ring (31) that can block the air duct (22) and an adjustment mechanism (32) for adjusting the position of the windproof ring (31).

3. The cooling fan ring according to claim 2, characterized in that, The adjustment mechanism (32) includes an adjustment rod (321) and a guide post (322). The guide post (322) is disposed on the end face of the wind shield ring (31). The guide post (322) is slidably connected to the inner end face of the outer shell assembly (1). The adjustment rod (321) passes through the outer shell assembly (1) and is movably connected to the outer shell assembly (1). The end face of the wind shield ring (31) is provided with a protrusion extending along the axial direction of the wind shield ring (31). The protrusion is provided with an adjustment hole (311). The adjustment rod (321) passes through the adjustment hole (311).

4. Cooling air ring according to claim 3, characterized in that It also includes a reset mechanism (33), which is installed inside the housing assembly (1), and the windshield ring (31) is connected to the reset mechanism (33).

5. Cooling air ring according to claim 4, characterized in that The axes of the adjustment holes (311) on several of the windproof rings (31) coincide. The adjustment holes (311) are either bow-shaped holes or semi-circular holes. The adjustment holes (311) include an arc segment (3111) and a straight segment (3112). The straight segment (3112) is provided with a groove that mates with a protrusion (3211). There is one adjustment rod (321). The adjustment rod (321) is provided with protrusions (3211) that are staggered along the circumference and axial direction of the adjustment rod (321). The axis of the adjustment rod (321) coincides with the axis of the arc segment (3111). The protrusions (3211) abut against the arc segment (3111).

6. The cooling fan ring according to claim 2, characterized in that, The air duct assembly (2) includes a plurality of air duct plates (21), the air duct plates (21) are annular plates, the air duct plates (21) are installed inside the housing assembly (1), and the air ducts (22) are disposed between adjacent air duct plates (21) and between the air duct plates (21) and the housing assembly (1).

7. The cooling fan ring according to claim 6, characterized in that, The air duct plate (21) is provided in four parts, namely a first air duct plate (211), a second air duct plate (212), a third air duct plate (213) and a fourth air duct plate (214). A first air duct is provided between the first air duct plate (211) and the second air duct plate (212), a second air duct is provided between the second air duct plate (212) and the third air duct plate (213), a third air duct is provided between the third air duct plate (213) and the fourth air duct plate (214), and a fourth air duct is provided between the fourth air duct plate (214) and the outer shell assembly (1).

8. The cooling air ring of claim 6, wherein, The air duct assembly (2) further includes a limiting ring (23) and a bolt (24). The air duct plate (21) and the outer shell assembly (1) are provided with screw holes that cooperate with the bolt (24). The inner side of the limiting ring (23) is provided with a thread that cooperates with the bolt (24). The bolt (24) passes through the screw hole and the limiting ring (23). The limiting ring (23) and the air duct plate (21) are staggered along the axial direction of the bolt (24). The limiting ring (23) abuts against the adjacent air duct plate (21).

9. The cooling fan ring according to any one of claims 3 to 5, characterized in that, The outer casing assembly (1) includes an outer casing body (11) and a cover plate (12). The feed inlet is located at the bottom of the outer casing body (11), the air inlet (111) is located on the side wall of the outer casing body (11), the adjusting rod (321) passes through the side wall of the outer casing body (11), the cover plate (12) is fixedly installed on the top opening of the outer casing body (11), and the discharge port is located on the cover plate (12).

10. Cooling air ring according to claim 9, characterized in that A pressure control valve (112) is also provided on the side wall of the outer shell body (11).

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