Annular air knife with stepped conical part

Abstract

The utility model discloses an annular air knife with a stepped conical part, which comprises an upper die and a lower die, the lower end face of the upper die is provided with the lower die matched with the upper die, and the annular air knife is characterized in that the stepped conical part is arranged at the center of the upper die and the center of the lower die in a penetrating manner; the stepped conical part is formed by connecting a first conical air channel, a buffer air channel and a second conical air channel from top to bottom; an annular air cavity is formed in the lower die, and a first connector threaded hole and a second connector threaded hole are formed in the left side and the right side of the lower die respectively. The stepped conical part is arranged and comprises a plurality of groups of stepped conical air channels, and each conical air channel is used for dredging airflow at a high speed, so that not only is the stability of the airflow blown by the air knife edge ensured, but also the taper angle amplitude can be increased, the air velocity can be accelerated, the purpose of reducing the air temperature is achieved, and the cooling effect of the air knife is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field, concretely is a kind of annular air knife with stepped taper portion. BACKGROUND

[0002] Traditional air knife is the surface cleaning device commonly used in cleaning or drying equipment, to remove dust or water droplets and other residues on the surface of product, including the air knife of strip structure and the air knife of ring structure. Among them, the annular air knife can produce uniform airflow, which is a device specially designed to blow out strong high-speed airflow, suitable for various industrial applications, such as blowing dust, drying water spots, cooling and other effects.

[0003] However, the existing annular air knife usually forms a high-speed thin flow air ring for cleaning, drying or cooling of pipe components, the cleaning and drying effect is remarkable, but the cooling effect is not ideal, often needs to be cooled again after cleaning the pipe components, consumes process processing time, reduces work efficiency. Therefore, in view of the above problems, it is necessary to put forward an annular air knife which can improve the cooling efficiency of pipe components. SUMMARY

[0004] In view of the above shortcomings in the prior art, the utility model aims to provide an annular air knife with stepped taper portion to solve the problem of poor cooling effect of the existing annular air knife.

[0005] The utility model employs the technical scheme that: an annular air knife with stepped taper portion, comprising an upper die and a lower die, the lower end face of the upper die is provided with a lower die matched therewith, characterized in that: a stepped taper portion is provided through the center of the upper die and the lower die, the stepped taper portion is composed of a first taper air duct, a buffer air duct and a second taper air duct from top to bottom. The lower die forms an annular air cavity inside, and the left and right sides of the lower die are respectively provided with a first joint threaded hole and a second joint threaded hole.

[0006] In order to further improve the use convenience of the annular air knife with stepped taper portion, the utility model employs the scheme that: a sealing gasket is arranged between the upper die and the lower die.

[0007] In order to further improve the use convenience of the annular air knife with stepped taper portion, the utility model employs the scheme that: a plurality of through holes are uniformly arranged on the sealing gasket around its axis center line.

[0008] In order to further improve the use convenience of the annular air knife with the stepped taper part, the utility model adopts the scheme that: a plurality of first joint thread holes are uniformly arranged on the die hole along the axial center line, and the first joint thread holes are correspondingly arranged with the through holes and are arranged in up-down position.

[0009] In order to further improve the use convenience of the annular air knife with the stepped taper part, the utility model adopts the scheme that: the taper angle of the top end of the first taper air channel is greater than the taper angle of the bottom end of the second taper air channel.

[0010] In order to further improve the use convenience of the annular air knife with the stepped taper part, the utility model adopts the scheme that: the taper angle of the bottom end of the first taper air channel is less than or equal to the taper angle of the top end of the second taper air channel.

[0011] In order to further improve the use convenience of the annular air knife with the stepped taper part, the utility model adopts the scheme that: a buffer air channel for buffering air flow is arranged between the first taper air channel and the second taper air channel.

[0012] In order to further improve the use convenience of the annular air knife with the stepped taper part, the utility model adopts the scheme that: the first joint thread hole is movably connected with a first metal joint for connecting the rubber hose.

[0013] In order to further improve the use convenience of the annular air knife with the stepped taper part, the utility model adopts the scheme that: the second joint thread hole is movably connected with a second metal joint for connecting the rubber hose and the air guide pipe.

[0014] In order to further improve the use convenience of the annular air knife with the stepped taper part, the utility model adopts the scheme that: the upper die and the lower die are fixedly connected through stainless steel bolts.

[0015] The annular air knife with the stepped taper part has the stepped taper part, includes multiple groups of stepped taper air channels, each taper air channel conducts high-speed dredging to air flow, not only ensures the stability of air knife opening blowing air flow, but also can increase the taper angle amplitude to speed up the air flow speed, achieves the purpose of reducing the air temperature, thereby improving the air knife cooling effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is the front view of the utility model;

[0018] Figure 3 It is the front view of the utility model after installing the metal joint.

[0019] Figure 4 It is the enlarged section schematic view of the utility model A place;

[0020] Figure 5 It is the structure schematic view of the utility model gasket;

[0021] Figure 6 It is the structure schematic view of the utility model lower mould.

[0022] In the drawing: 1 upper mould, 2 gasket, 21 through hole, 3 lower mould, 31 mould hole, 4 first joint threaded hole, 5 second joint threaded hole, 6 annular air cavity, 7 stepped conical part, 71 first conical air passage, 72 buffer air passage, 73 second conical air passage, 8 first metal joint, 9 second metal joint. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Please refer to Figures 1 to 6 The utility model discloses a stepped conical part's annular air knife, including upper mould 1 and lower mould 3, the lower end surface of upper mould 1 is provided with the lower mould 3 that cooperates with it, upper mould 1 with Lower mould 3 is fixedly connected through stainless steel bolt, improves the installation firmness of upper mould 1 and lower mould 3 through stainless steel bolt.

[0025] In the utility model: the center of upper mould 1 with lower mould 3 is equipped with a stepped conical part 7, the stepped conical part 7 is by first conical air passage 71, buffer air passage 72 and second conical air passage 73 from top to bottom and is connected to constitute. The inside of lower mould 3 forms an annular air cavity 6, and the left and right sides of lower mould 3 are provided with first joint threaded hole 4 and second joint threaded hole 5 respectively. When using, first, the annular air knife connecting rubber hose and air guide pipe are connected, compressed air enters the annular air knife, and after circulating airflow by the internal annular air cavity 6, it is blown out by the annular gap between upper mould 1 and lower mould 3, forms airflow ring, at this time, the pipe component to be cooled and cooled can be placed in the annular air knife, under the high-speed dredging of stepped conical part 7 to airflow, air flow rate is accelerated, so as to achieve the purpose of reducing air temperature, and then improve the effect of air knife on pipe component cooling.

[0026] Furthermore, a sealing gasket 2 is provided between the upper mold 1 and the lower mold 3 to prevent the upper mold 1 and the lower mold 3 from loosening, thereby strengthening the sealing effect between the two. The sealing gasket 2 is evenly provided with several through holes 21 around its axial center line for connecting fasteners (for example: stainless steel bolts).

[0027] Furthermore, the die hole 31 is evenly provided with a plurality of first joint threaded holes 4 around its axis center line, and the first joint threaded holes 4 correspond to the through holes 21 one by one and are arranged in vertical alignment to facilitate installation of the sealing gasket 2 .

[0028] Furthermore, the cone angle of the top of the first conical air duct 71 is greater than the cone angle of the bottom of the second conical air duct 73; the cone angle of the bottom of the first conical air duct 71 is less than or equal to the cone angle of the top of the second conical air duct 73. Since the volume of the first conical air duct 71 is greater than the volume of the second conical air duct 73, the inlet air flow rate is higher than the outlet air flow rate. In order to increase the received air flow rate, the second conical air duct 73 accelerates the air flow and reduces the air temperature due to the gas compression effect. A buffer air duct 72 is provided between the first conical air duct 71 and the second conical air duct 73. The buffer air duct 72 buffers and stabilizes the airflow originating from the first conical air duct 71 so that the airflow can transition to the second conical air duct 73 more evenly and smoothly.

[0029] Specifically, the first joint threaded hole 4 is movably connected to a first metal joint 8 , and one end of the rubber hose is connected via the first metal joint 8 .

[0030] Specifically, the second joint threaded hole 5 is movably connected to a second metal joint 9 for connecting the rubber hose and the air duct. The other end of the rubber hose is connected through the second metal joint 9 and receives the airflow introduced by the air duct.

[0031] The stepped conical portion of the utility model can be provided with multiple groups of stepped conical air ducts, and each conical air duct guides the airflow at high speed, which not only ensures the stability of the airflow blown by the wind knife mouth, but also can increase the cone angle amplitude to accelerate the air flow rate, thereby achieving the purpose of lowering the air temperature, thereby improving the cooling effect of the wind knife.

[0032] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0033] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. An annular air knife with a stepped tapered portion, comprising an upper die (1) and a lower die (3), wherein the lower end surface of the upper die (1) is provided with a lower die (3) mating therewith, characterized in that: A stepped tapered portion (7) is provided through the center of the upper mold (1) and the lower mold (3), and the stepped tapered portion (7) is composed of a first tapered air channel (71), a buffer air channel (72), and a second tapered air channel (73) connected from top to bottom; An annular air cavity (6) is formed inside the lower mold (3); A first joint threaded hole (4) and a second joint threaded hole (5) are respectively provided on the left and right sides of the lower die (3).

2. The annular air knife with a stepped tapered portion according to claim 1, characterized in that: A sealing gasket (2) is provided between the upper mold (1) and the lower mold (3).

3. The annular air knife with a stepped tapered portion according to claim 2, characterized in that: The sealing gasket (2) is evenly provided with a plurality of through holes (21) around the center line of its axis; the lower mold (3) is evenly provided with a plurality of mold holes (31) around the center line of its axis.

4. The annular air knife with a stepped tapered portion according to claim 3, characterized in that: The die hole (31) is evenly provided with a plurality of first joint threaded holes (4) around the center line of the axis thereof. The first joint threaded holes (4) correspond to the through holes (21) one by one and are arranged in vertical alignment.

5. The annular air knife with a stepped tapered portion according to claim 1, characterized in that: The cone angle at the top end of the first cone-shaped air channel (71) is greater than the cone angle at the bottom end of the second cone-shaped air channel (73).

6. The annular air knife with a stepped tapered portion according to claim 1, characterized in that: The cone angle at the bottom end of the first cone-shaped air channel (71) is less than or equal to the cone angle at the top end of the second cone-shaped air channel (73).

7. The annular air knife with a stepped tapered portion according to claim 1, characterized in that: A buffer air channel (72) for buffering air flow is provided between the first tapered air channel (71) and the second tapered air channel (73).

8. The annular air knife with a stepped tapered portion according to claim 1, characterized in that: The first joint threaded hole (4) is movably connected to a first metal joint (8) for connecting a rubber hose.

9. The annular air knife with a stepped tapered portion according to claim 1, characterized in that: The second joint threaded hole (5) is movably connected to a second metal joint (9) for connecting the rubber hose and the air duct.

10. The annular air knife with a stepped tapered portion according to claim 1, characterized in that: The upper die (1) and the lower die (3) are fixedly connected via stainless steel bolts.

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