An air blowing head with adjustable air volume

Abstract

The utility model discloses an adjustable air volume's blowing head relates to blowing head field, its technical key points are: including blowing head body, the bottom of blowing head body is provided with cooling cavity, the top of cooling cavity is provided with installation cavity, be equipped with blowing pressure pipe in the installation cavity, the top of blowing head body is equipped with a plurality of cooling air inlet, the inside of blowing head body is provided with a plurality of cooling air duct, a plurality of cooling air duct are connected a plurality of cooling air inlet respectively, the purpose is to solve the different size of the bottle mouth of each batch glass bottle, and therefore the required cooling air intake is also different, if the small -bore glass bottle bottle mouth adopts conventional cooling air intake, then will lead to the overcooling of small -bore glass bottle bottle mouth fragile, and the big aperture bottle mouth if adopting conventional cooling air intake, then will produce thermal stress crack because of the insufficient cooling intensity, thereby cause the technical problem of the inconvenience of production.

Description

Technical Field

[0001] This utility model relates to the field of air blowers, and in particular to an air blower with adjustable air volume. Background Technology

[0002] In the industrial production of glass containers, the blow molding process is a key step that determines the precision of the product. When the high-temperature glass preform enters the mold, the blow head blows it into shape using high-pressure gas. To accelerate the cooling of the bottle mouth, cooling is carried out after the bottle mouth is formed. Traditional blow heads are equipped with cooling air channels inside. External cooling air enters the blow head through the cooling air channels, thereby removing the heat from the bottle mouth and increasing the cooling speed of the bottle mouth.

[0003] However, since the bottle neck size varies from batch to batch, the required cooling airflow also varies. If a conventional cooling airflow is used for the neck of a small-diameter glass bottle, the material performance will deteriorate due to excessive heat dissipation per unit area. The conventional cooling airflow is relatively large for small-diameter bottle necks. Excessive cooling airflow creates intense heat exchange on the narrow bottle neck surface, causing the bottle neck temperature to drop rapidly in a short time. This rapid cooling disrupts the orderly arrangement of the glass molecular structure, prompting premature precipitation of crystalline substances and the formation of micro-cracks within the material. Consequently, the impact resistance of the bottle neck will decrease by more than one-third. Brittle fracture is highly likely to occur during subsequent processing or filling, significantly increasing the scrap rate. If conventional cooling airflow is used for large-diameter bottle mouths, the airflow diffuses across the wide bottle mouth surface, resulting in insufficient cooling airflow for large-diameter bottle mouths. This insufficient cooling airflow leads to a significant temperature difference between the inner and outer layers of the bottle mouth. When the outer surface of the bottle mouth hardens rapidly while the interior remains at a high temperature, the inconsistent material shrinkage will form a ring-shaped stress concentration zone at the bottle mouth shoulder. Once this thermal stress exceeds the glass bottle's tolerance limit, visible cracks will directly occur during the molding stage, and may even trigger a chain reaction of breakages in the entire batch of products during the annealing furnace. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an adjustable airflow blowing head. The purpose is to solve the problem that, due to the different bottle mouth sizes of each batch of glass bottles, the required cooling airflow also varies. If a conventional cooling airflow is used for the mouth of a small-diameter glass bottle, it will lead to overcooling and embrittlement of the bottle mouth; while if a conventional cooling airflow is used for the mouth of a large-diameter bottle, insufficient cooling intensity will cause thermal stress cracks, thus causing production inconvenience.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] An adjustable airflow blower includes a blower body, a cooling cavity at the bottom of the blower body, a mounting cavity at the top of the cooling cavity, a blow-pressure pipe inside the mounting cavity, multiple cooling air inlets at the top of the blower body, multiple cooling air channels inside the blower body that are connected to the multiple cooling air inlets, multiple cooling blow-pressure holes inside the cooling cavity that are connected to the multiple cooling air channels, and a blow-pressure pipe inside the mounting cavity. The air duct has an exhaust opening on one side of the air blower body that connects to the exhaust duct. An adjusting disc is rotatably connected to one side of the air blower body. The adjusting disc has multiple exhaust holes inside, each with a different inner diameter, so that any one of the exhaust holes connects to the exhaust opening. A first fixing hole is provided on one side of the air blower body. Multiple second fixing holes are provided inside the adjusting disc. A fixing bolt is inserted into any one of the second fixing holes, and the fixing bolt is threaded into the adjacent first fixing hole.

[0007] When the operator rotates the adjusting dial, they can align a specific inner diameter exhaust hole with the exhaust opening of the air blower body. After fixing the selected exhaust hole position with the fixing bolts, the cooling airflow passes sequentially through the cooling air inlet, cooling air duct, and cooling air blower, and then sequentially through the cooling cavity and mounting cavity. This allows the cooling airflow to carry the heat from the glass bottle out through the exhaust opening via the exhaust air duct. The exhaust volume is determined by the inner diameter of the selected exhaust hole. If cooling of the mouth of a small-diameter glass bottle is required, a smaller inner diameter exhaust hole is selected and connected to the exhaust opening. This increases the flow resistance of the cooling air in the exhaust air duct, but the total input air volume from the external air source remains fixed. (In the air compressor settings of the department), the actual air volume of the cooling air blower is only distributed from the total air volume according to the resistance ratio. Therefore, less than 80% of the air volume can actually be distributed to the cooling air blower. Compared with the full direct blowing of the traditional structure, the actual cooling intensity is reduced, thus adapting to the cooling air volume of small-diameter glass bottle mouths. If it is necessary to cool the mouth of a large-diameter glass bottle, a large inner diameter exhaust hole is selected to connect with the exhaust opening. The large inner diameter exhaust hole can significantly reduce the flow resistance of the exhaust duct. At this time, the external air source can distribute more than 80% of the air volume to the cooling air blower, thereby improving the cooling intensity and adapting to the cooling air volume of large-diameter glass bottle mouths.

[0008] Furthermore, in this application, the adjusting turntable is circular, and the plurality of exhaust holes are distributed in a ring at equal intervals with the center of the adjusting turntable as the axis.

[0009] When the adjustment turntable rotates, the movement trajectory of each exhaust hole remains coaxial with the exhaust opening, ensuring that when any exhaust hole rotates to the working position, its central axis is completely coincident with the central axis of the exhaust opening. This allows exhaust holes of different diameters to be precisely aligned with the exhaust opening, avoiding local eddies caused by airflow deflection.

[0010] Furthermore, in this application, a connecting shaft is provided on one side of the adjusting turntable, the connecting shaft is located at the center of the adjusting turntable, a movable column is provided at one end of the connecting shaft, the diameter of the movable column is larger than that of the connecting shaft, a movable groove is provided on one side of the blowing head body, the movable column is movably engaged with the movable groove, a limiting ring is provided inside the movable groove, the connecting shaft passes through the inner ring of the limiting ring, so that the limiting ring is located between the movable column and the adjusting turntable, the inner ring of the limiting ring matches the connecting shaft, and the connecting shaft is rotatably connected to the inner ring of the limiting ring.

[0011] When the operator rotates the adjustment dial to the target exhaust hole, the movable column slides axially within the movable groove, causing the entire adjustment dial to move closer to the air blowing head body. The axial floating design reduces the gap between the exhaust hole and the exhaust opening, thereby improving the stability of the exhaust. Furthermore, since the limiting ring is located between the movable column and the adjustment dial, it is easy to limit the movable column, thus preventing the movable column from falling out of the movable groove.

[0012] Furthermore, in this application, a sealing ring is provided on one side of the air blowing head body. The sealing ring is elastic, and the exhaust hole is located on the inner ring of the sealing ring, so that when the sealing ring corresponds to any of the exhaust holes, the sealing ring abuts against the adjusting dial.

[0013] Furthermore, in this application, a plurality of sealing slots are provided on one side of the adjusting turntable, the sealing slots are matched with the sealing ring, and the plurality of exhaust holes are respectively located on the inner ring of the plurality of sealing slots, so that the sealing ring is engaged with any of the sealing slots.

[0014] Furthermore, in this application, a mounting groove is provided on one side of the air blowing head body, the mounting groove is matched with the shape of the sealing ring, the sealing ring is disposed inside the mounting groove, and one side of the sealing ring protrudes from the mounting groove.

[0015] Furthermore, in this application, an adjustment lever is provided on the other side of the adjustment dial, and the outer edge of the adjustment lever is provided with a frosted surface.

[0016] Furthermore, in this application, the cooling cavity has multiple air guide slots inside, and one end of each air guide slot is connected to the mounting cavity.

[0017] Furthermore, in this application, the top of the blowing head body is provided with a blowing pressure inlet hole, which is connected to the blowing pressure pipe.

[0018] Furthermore, in this application, the air blowing head body is provided with mounting blocks on both sides, and a mounting slot is provided on one side of the mounting block for installation with an external row machine.

[0019] This utility model has the following beneficial effects:

[0020] When the operator rotates the adjusting dial, they can align a specific inner diameter exhaust hole with the exhaust opening of the air blower body. After fixing the selected exhaust hole position with the fixing bolts, the cooling airflow passes sequentially through the cooling air inlet, cooling air duct, and cooling air blower, and then sequentially through the cooling cavity and mounting cavity. This allows the cooling airflow to carry the heat from the glass bottle out through the exhaust opening via the exhaust air duct. The exhaust volume is determined by the inner diameter of the selected exhaust hole. If cooling of the mouth of a small-diameter glass bottle is required, a smaller inner diameter exhaust hole is selected and connected to the exhaust opening. This increases the flow resistance of the cooling air in the exhaust air duct, but the total input air volume from the external air source remains fixed. (In the air compressor settings of the department), the actual air volume of the cooling air blower is only distributed from the total air volume according to the resistance ratio. Therefore, less than 80% of the air volume can actually be distributed to the cooling air blower. Compared with the full direct blowing of the traditional structure, the actual cooling intensity is reduced, thus adapting to the cooling air volume of small-diameter glass bottle mouths. If it is necessary to cool the mouth of a large-diameter glass bottle, a large inner diameter exhaust hole is selected to connect with the exhaust opening. The large inner diameter exhaust hole can significantly reduce the flow resistance of the exhaust duct. At this time, the external air source can distribute more than 80% of the air volume to the cooling air blower, thereby improving the cooling intensity and adapting to the cooling air volume of large-diameter glass bottle mouths. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the air guide channel of this utility model.

[0023] Figure 3 This is a schematic diagram of the cooling air duct structure of this utility model.

[0024] Figure 4 This is a schematic diagram of the structure of the adjusting turntable of this utility model.

[0025] Figure 5 This is a schematic diagram of the sealing slot of this utility model.

[0026] In the attached figures, the following labels are used:

[0027] 1. Air blower body; 2. Air inlet for blowing pressure; 3. Air inlet for cooling; 4. Mounting block; 5. Mounting slot; 6. Mounting cavity; 7. Cooling cavity; 8. Air blower pipe; 9. Cooling air blower hole; 10. Cooling air duct; 11. Exhaust opening; 12. Mounting groove; 13. Sealing ring; 14. First fixing hole; 15. Second fixing hole; 16. Adjusting turntable; 17. Fixing bolt; 18. Movable groove; 19. Limiting ring; 20. Movable column; 21. Connecting shaft; 22. Sealing slot; 23. Exhaust hole; 24. Adjusting lever; 25. Frosted surface; 26. Air guide groove; 27. Exhaust air duct. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Reference Figures 1-5In some specific embodiments, an adjustable airflow blower includes a blower body 1. A cooling cavity 7 is formed at the bottom of the blower body 1, and a mounting cavity 6 is formed at the top of the cooling cavity 7. A blower pipe 8 is disposed within the mounting cavity 6. Multiple cooling air inlets 3 are provided at the top of the blower body 1. Multiple cooling air ducts 10 are formed inside the blower body 1, each connected to one of the multiple cooling air inlets 3. Multiple cooling air outlets 9 are formed inside the cooling cavity 7, each connected to one of the multiple cooling air ducts 10. The mounting cavity 6 contains... The air duct 27 is provided. An exhaust opening 11 is provided on one side of the air blower body 1, which is connected to the air duct 27. An adjusting turntable 16 is rotatably connected to one side of the air blower body 1. Multiple exhaust holes 23 are provided inside the adjusting turntable 16. Each exhaust hole 23 has a different inner diameter, so that any exhaust hole 23 is connected to the exhaust opening 11. A first fixing hole 14 is provided on one side of the air blower body 1. Multiple second fixing holes 15 are provided inside the adjusting turntable 16. A fixing bolt 17 is inserted into any second fixing hole 15. The fixing bolt 17 is threadedly engaged with the adjacent first fixing hole 14.

[0032] With the above technical solution, when the operator rotates the adjusting turntable 16, they can align the exhaust hole 23 with a specific inner diameter with the exhaust opening 11 of the air blower body 1. After fixing the selected exhaust hole 23 with the fixing bolt 17, the cooling airflow passes through the cooling air inlet 3, the cooling air duct 10, and the cooling air blower 9 in sequence, and then flows through the cooling cavity 7 and the mounting cavity 6 in sequence. This allows the cooling airflow to carry the heat of the glass bottle out from the exhaust opening 11 through the exhaust air duct 27. The exhaust volume is determined by the inner diameter of the selected exhaust hole 23. If it is necessary to cool the mouth of a small-diameter glass bottle, a small-diameter exhaust hole 23 is selected to connect with the exhaust opening 11, which increases the flow resistance of the cooling air in the exhaust air duct 27, but the external... The total input air volume of the air source is fixed (set by an external air compressor). At this time, the actual effective air volume of the cooling air blower 9 is only distributed from the total air volume according to the resistance ratio. Therefore, less than 80% of the air volume can actually be distributed to the cooling air blower 9. Compared with the full direct blowing of the traditional structure, the actual cooling intensity is reduced, thus adapting to the cooling air volume of small-diameter glass bottle mouths. If it is necessary to cool the mouth of a large-diameter glass bottle, the large inner diameter exhaust hole 23 is selected to connect with the exhaust opening 11. The large inner diameter exhaust hole 23 can significantly reduce the flow resistance of the exhaust duct 27. At this time, the external air source can distribute more than 80% of the air volume to the cooling air blower 9, thereby improving the cooling intensity and adapting to the cooling air volume of large-diameter glass bottle mouths.

[0033] Reference Figures 1-5 In some specific embodiments, the adjusting turntable 16 is circular, and multiple exhaust holes 23 are distributed in a ring at equal intervals around the center of the adjusting turntable 16.

[0034] With the above technical solution, when the adjustment turntable 16 rotates, the movement trajectory of each exhaust hole 23 is coaxial with the exhaust opening 11, ensuring that when any exhaust hole 23 rotates to the working position, the central axis of its exhaust hole 23 is completely coincident with the central axis of the exhaust opening 11, so that exhaust holes 23 of different diameters can be accurately aligned with the exhaust opening 11, avoiding local eddies caused by airflow deflection.

[0035] Reference Figures 4-5 In some specific embodiments, a connecting shaft 21 is provided on one side of the adjusting turntable 16. The connecting shaft 21 is located at the center of the adjusting turntable 16. A movable column 20 is provided at one end of the connecting shaft 21. The diameter of the movable column 20 is larger than that of the connecting shaft 21. A movable groove 18 is provided on one side of the blowing head body 1. The movable column 20 is movably engaged with the movable groove 18 (that is, the movable column 20 can slide in the movable groove 18 or rotate in the movable groove 18). A limiting ring 19 is provided inside the movable groove 18. The connecting shaft 21 passes through the inner ring of the limiting ring 19, so that the limiting ring 19 is located between the movable column 20 and the adjusting turntable 16. The inner ring of the limiting ring 19 matches the connecting shaft 21, and the connecting shaft 21 is rotatably connected to the inner ring of the limiting ring 19.

[0036] With the above technical solution, when the operator rotates the adjustment dial 16 to the target exhaust hole 23, the movable column 20 slides axially in the movable groove 18, causing the adjustment dial 16 to move closer to the air blowing head body 1. The axial floating design reduces the gap between the exhaust hole 23 and the exhaust opening 11, thereby improving the stability of the exhaust. Furthermore, since the limiting ring 19 is located between the movable column 20 and the adjustment dial 16, it is convenient to limit the movable column 20, thereby preventing the movable column 20 from falling out of the movable groove 18.

[0037] Reference Figures 4-5 In some specific embodiments, a sealing ring 13 is provided on one side of the air blowing head body 1. The sealing ring 13 is elastic, and the exhaust hole 23 is located in the inner ring of the sealing ring 13. When the sealing ring 13 corresponds to any of the exhaust holes 23, the sealing ring 13 abuts against the adjusting turntable 16.

[0038] With the above technical solution, when the adjusting turntable 16 rotates to align with any of the exhaust holes 23, the movable column 20 slides axially in the movable groove 18, causing the adjusting turntable 16 to move closer to the air blowing head body 1. At this time, the sealing ring 13 comes into contact with the adjusting turntable 16 and begins to compress and deform. After the fixing bolt 17 fixes the adjusting turntable 16, the sealing ring 13 will fill the gap between the exhaust hole 23 and the exhaust opening 11, thereby preventing airflow from leaking from the gap between the exhaust hole 23 and the exhaust opening 11 and improving the airtightness of the exhaust hole 23 and the exhaust opening 11.

[0039] Reference Figures 4-5In some specific embodiments, a plurality of sealing slots 22 are provided on one side of the adjusting turntable 16. The sealing slots 22 are matched with the sealing ring 13. A plurality of exhaust holes 23 are located in the inner ring of the plurality of sealing slots 22, so that the sealing ring 13 is engaged with any of the sealing slots 22.

[0040] With the above technical solution, when the adjusting turntable 16 is rotated to align with any of the exhaust holes 23, the movable column 20 slides axially in the movable groove 18. At this time, the sealing ring 13 engages with any of the sealing slots 22, thereby improving the stability of the sealing ring 13 connection and preventing the airflow from causing the sealing ring 13 to shift when the airflow flows through the exhaust opening 11 and the exhaust hole 23.

[0041] Reference Figure 4 In some specific embodiments, an installation groove 12 is provided on one side of the air blowing head body 1. The installation groove 12 matches the shape of the sealing ring 13. The sealing ring 13 is located inside the installation groove 12, so that one side of the sealing ring 13 protrudes from the installation groove 12.

[0042] With the above technical solution, when the airflow flows through the exhaust opening 11 and the exhaust hole 23, the sealing ring 13 is located inside the mounting groove 12, thereby further restricting the position of the limiting ring 19 and preventing the limiting ring 19 from detaching from the air blowing head body 1.

[0043] Reference Figures 4-5 In some specific embodiments, an adjustment block 24 is provided on the other side of the adjustment turntable 16, and the outer edge of the adjustment block 24 is provided with a frosted surface 25.

[0044] With the above technical solution, when the operator needs to turn the adjustment dial 16, the operator can drive the adjustment dial 16 to rotate through the adjustment lever 24. Furthermore, the frosted surface 25 can enhance the friction between the adjustment lever 24 and the operator's hand, thereby preventing slippage when the operator turns the adjustment lever 24.

[0045] Reference Figure 2 In some specific embodiments, the cooling cavity 7 has multiple air guide slots 26 inside, and one end of the air guide slot 26 is connected to the mounting cavity 6.

[0046] Through the above technical solution, when the cooling airflow enters from the mounting cavity 6, the cooling airflow is guided into the mounting cavity 6 by physical constraints, thereby guiding the direction of airflow delivery.

[0047] Reference Figures 1-3 In some specific embodiments, the top of the air blowing head body 1 is provided with a blowing pressure inlet 2, which is connected to the blowing pressure pipe 8.

[0048] Through the above technical solution, the blow-in air hole 2 serves as the main input channel for high-pressure airflow. It is directly connected to the blow-in pipe 8 through a vertical through-structure, forming a directional airflow transmission path, which facilitates the blow-in forming of the glass blank.

[0049] Reference Figures 1-3 In some specific embodiments, the air blowing head body 1 is provided with mounting blocks 4 on both sides, and a mounting slot 5 is provided on one side of the mounting block 4. The mounting slot 5 is used for installation with an external row machine.

[0050] Through the above technical solution, the mounting slot 5 is used to connect with the transmission mechanism of the row machine, thereby facilitating the installation of the air blowing head body 1, so that the air blowing head body 1 can be combined with the mold to form a glass bottle.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. An adjustable airflow blower head, comprising a blower head body, a cooling cavity at the bottom of the blower head body, a mounting cavity at the top of the cooling cavity, a blow-pressure pipe disposed within the mounting cavity, a plurality of cooling air inlets at the top of the blower head body, a plurality of cooling air ducts inside the blower head body, the plurality of cooling air ducts respectively connecting to the plurality of cooling air inlets, a plurality of cooling air outlets inside the cooling cavity, the plurality of cooling air outlets respectively connecting to the plurality of cooling air ducts, an exhaust air duct inside the mounting cavity, and an exhaust opening on one side of the blower head body connecting to the exhaust air duct, characterized in that, An adjusting disc is rotatably connected to one side of the air blowing head body. The adjusting disc has multiple exhaust holes inside, each with a different inner diameter, so that any one of the exhaust holes is connected to an exhaust opening. A first fixing hole is provided on one side of the air blowing head body, and multiple second fixing holes are provided inside the adjusting disc. A fixing bolt is inserted into any one of the second fixing holes, and the fixing bolt is threaded into the adjacent first fixing hole.

2. The adjustable airflow blower according to claim 1, characterized in that, The adjusting turntable is circular, and the multiple exhaust holes are distributed in a ring at equal intervals with the center of the adjusting turntable as the axis.

3. The adjustable airflow blower according to claim 2, characterized in that, A connecting shaft is provided on one side of the adjusting turntable, and the connecting shaft is located at the center of the adjusting turntable. A movable column is provided at one end of the connecting shaft, and the diameter of the movable column is larger than that of the connecting shaft. A movable groove is provided on one side of the blowing head body, and the movable column is movably engaged with the movable groove. A limiting ring is provided inside the movable groove, and the connecting shaft passes through the inner ring of the limiting ring, so that the limiting ring is located between the movable column and the adjusting turntable. The inner ring of the limiting ring matches the connecting shaft, and the connecting shaft is rotatably connected to the inner ring of the limiting ring.

4. The adjustable airflow blower according to claim 3, characterized in that, A sealing ring is provided on one side of the air blowing head body. The sealing ring is elastic. The exhaust hole is located on the inner ring of the sealing ring. When the sealing ring corresponds to any of the exhaust holes, the sealing ring abuts against the adjusting dial.

5. An adjustable airflow blower according to claim 4, characterized in that, The adjusting turntable has multiple sealing slots on one side, which match the sealing ring. The multiple exhaust holes are located on the inner rings of the multiple sealing slots, so that the sealing ring engages with any of the sealing slots.

6. The adjustable airflow blower according to claim 5, characterized in that, The air blowing head body has a mounting groove on one side, the mounting groove is matched with the shape of the sealing ring, the sealing ring is located inside the mounting groove, and one side of the sealing ring protrudes from the mounting groove.

7. The adjustable airflow blower according to claim 3, characterized in that, An adjustment lever is provided on the other side of the adjustment dial, and the outer edge of the adjustment lever has a frosted surface.

8. The adjustable airflow blower according to claim 1, characterized in that, The cooling cavity has multiple air guide slots inside, and one end of each air guide slot is connected to the mounting cavity.

9. An adjustable airflow blower according to claim 1, characterized in that, The top of the air blowing head body is provided with a blowing pressure air inlet, which is connected to the blowing pressure pipe.

10. An adjustable airflow blower according to claim 1, characterized in that, The air blowing head body has mounting blocks on both sides, and a mounting slot is provided on one side of the mounting block for installation with an external row machine.

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