Annular blowing air knife for wiredrawing
By designing a wire drawing ring-shaped blowing air knife and utilizing a fan and air passage structure, the problems of poor air compressor blowing effect and high power consumption were solved, achieving efficient cleaning of the steel wire surface and reducing energy consumption.
Patent Information
- Application Number
- CN202423102367.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-16
AI Technical Summary
In the existing technology, when an air compressor is used in conjunction with an air nozzle to blow the surface of the steel wire, the blowing effect is poor and the power consumption is high. It cannot effectively remove the liquid from the surface of the steel wire, resulting in crystallization problems.
A wire drawing ring-shaped air knife is designed, which uses a fan instead of an air compressor. The gas pressurized by the gas compression chamber blows the surface of the steel wire through an air passage with a specific angle and gap, ensuring a uniform and effective cleaning effect.
It achieves efficient cleaning of the steel wire surface, avoids crystallization, reduces energy consumption, improves production efficiency, and reduces production costs.
Smart Images
Figure CN223543750U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of air knife technology, specifically designing a wire drawing annular blowing air knife. Background Technology
[0002] In the steel wire production process, the drawn steel wire needs to be washed with high-pressure water to remove the liquid from the surface of the wire. This is to prevent the formation of borax crystals on the surface of the wire that may have been present during the drawing process, and to facilitate subsequent production steps. Currently, air compressors are often used in conjunction with air nozzles to blow the liquid off the surface of the steel wire. However, this method has two drawbacks. First, the air nozzles cannot guarantee a uniform and effective cleaning of the surface of the steel wire, resulting in poor cleaning and ineffective removal of the liquid, which can lead to crystallization on the surface of the steel wire. Second, air compressors consume a lot of electricity, which is a waste of energy. Summary of the Invention
[0003] This invention addresses the problem that existing methods using air compressors and nozzles to blow away liquid from the surface of steel wires result in poor blowing effects and high power consumption. It provides a wire-drawing annular blowing air knife that uses a fan instead of an air compressor to reduce power consumption. Gas is pressurized in a gas compression chamber and then blown out through an air passage to blow away liquid from the steel wire surface. By setting the angle and gap of the air passage, the blowing effect is ensured, effectively preventing crystallization on the steel wire surface.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] A wire drawing annular blowing air knife includes an air inlet pipe, a housing, and a cover. One end of the air inlet pipe is connected to a fan, and the other end is mounted on the housing. The cover is fixedly installed at the wire inlet end of the housing, and a wire inlet hole is passed through the center of the cover. A wire threading part is coaxially arranged inside the housing, and a gas compression chamber is formed between the wire threading part and the inner wall of the housing. The air inlet pipe communicates with the gas compression chamber. The wire threading part includes a connector and two coaxially arranged first wire threading parts and second wire threading parts. One end of the first wire threading part is protruding, and one end of the second wire threading part is recessed. The protrusion and the recess match, and there is a gap between them. The gap between the protruding end of the first wire threading part and the recessed end of the second wire threading part forms an air passage. The first wire threading part and the second wire threading part are fixedly connected by the connector. The other end of the first wire threading part opposite to the protruding end abuts against the cover, and the other end of the second wire threading part opposite to the recessed end passes through the wire outlet end of the housing. By setting the air passage, the blowing angle of the steel wire is ensured to prevent crystallization.
[0006] Preferably, the first threading part has a mounting hole and a first threading hole connected in sequence. The mounting hole and the inlet hole are connected to each other. The end of the first threading hole away from the inlet hole is the protruding end of the first threading part. The end face of the protruding end of the first threading part is an annular inclined surface with an inner length and an outer length. The steel wire passes through the mounting hole and the first threading hole in sequence.
[0007] Preferably, the second threading portion has a second threading hole extending through it.
[0008] Preferably, the diameter of the mounting hole is larger than that of the first wire-passing hole, and the diameters of the inlet hole, the first wire-passing hole and the second wire-passing hole are the same. The inlet hole, the mounting hole, the first wire-passing hole and the second wire-passing hole are coaxially connected to each other in sequence, and the steel wire passes through the inlet hole, the mounting hole, the first wire-passing hole and the second wire-passing hole in sequence.
[0009] Preferably, the connector is a U-shaped plate and there are multiple connectors. The two ends of the U-shaped plate are respectively fixedly connected to the side walls of the first threading part and the second threading part. The multiple connectors are arranged in a circumferential array along the air passage, and the connectors ensure that the first threading part and the second threading part are coaxially corresponding.
[0010] Preferably, a wear-resistant nozzle is coaxially provided in the mounting hole to ensure that the steel wire is in the axial position of the threading part.
[0011] Preferably, a plurality of mounting plates are fixedly provided on the outer side of the outlet end of the housing, and through holes are provided on the mounting plates to fix and install the blowing air knife of this utility model.
[0012] Preferably, the end of the second threading hole away from the first threading part is set as a cone to form a threading outlet, with the small end of the threading outlet facing inward and the large end facing outward, to avoid contact and wear between the steel wire and the second threading part when the wire passes through the air knife.
[0013] Preferably, the distance between the two side walls of the air passage is 1.5 mm.
[0014] Preferably, the gas in the gas compression chamber is blown along the inclined surface of the protruding end of the first threading portion toward the second threading hole, forming the air outlet direction of the air passage, and the angle α between the air outlet direction of the air passage and the axis of the second threading hole is 30°.
[0015] The beneficial effects of this utility model through the above technical solution are as follows:
[0016] 1. In this utility model, the inclined surface of the protruding end of the first wire threading part can guide the gas in the gas compression chamber to blow towards the second wire threading hole through the air channel. Therefore, a conical blowing airflow will be generated through the air channel, thereby achieving all-round cleaning of the steel wire surface and effectively removing liquid and impurities from the steel wire surface.
[0017] 2. By setting the gap distance of the air passage, the gas is pressurized in the gas compression chamber and then blown out through the air passage, achieving efficient purging of the steel wire surface. The pressurized gas has a significant purging effect, further improving the removal effect of liquid and impurities on the steel wire surface.
[0018] 3. This utility model ensures the removal effect of liquid on the surface of the steel wire by setting the conical tilt angle of the air passage (i.e., the angle α between the air outlet direction of the air passage and the axis of the second wire hole), thereby effectively avoiding residue on the surface of the steel wire and preventing borax crystallization.
[0019] 4. This utility model effectively ensures that the steel wire is located on the axis of the first and second threading holes when passing through the air knife by installing a wear-resistant nozzle in the mounting hole, thus ensuring the purging effect and avoiding wear of the threading part due to contact between the steel wire and the first and second threading parts.
[0020] 5. The annular purging air knife of this utility model can be used with a blower to achieve a better purging effect than the current method of using an air compressor with an air nozzle, and effectively reduce the power consumption of the purging operation, thereby reducing production costs. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .
[0022] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .
[0023] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .
[0024] Figure 4 This is an exploded view of the cover of this utility model after disassembly.
[0025] The attached diagram is labeled as follows: 1 is the air inlet pipe, 2 is the housing, 3 is the cover, 4 is the wire inlet hole, 5 is the gas compression chamber, 6 is the connector, 7 is the first wire threading part, 8 is the second wire threading part, 9 is the air passage, 10 is the mounting hole, 11 is the first wire threading hole, 12 is the second wire threading hole, 13 is the mounting plate, 14 is the through hole, 15 is the wire threading outlet, and 16 is the wear-resistant nozzle. Detailed Implementation
[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0027] like Figures 1-4As shown, this embodiment provides a wire drawing annular purging air knife, including an air inlet pipe 1, a housing 2, and a cover 3. One end of the air inlet pipe 1 is connected to a fan, and the other end is installed on the housing 2. The cover 3 is fixedly installed at the wire inlet end of the housing 2. A wire inlet hole 4 is passed through the middle of the cover 3, and the steel wire enters the air knife through the wire inlet hole 4. A wire threading part is coaxially arranged inside the housing 2. The wire threading part and the inner wall of the housing 2 form a gas compression chamber 5. The air inlet pipe 1 is connected to the gas compression chamber 5. The gas entering through the air inlet pipe 1 is pressurized by the gas compression chamber 5 to ensure the purging pressure. The wire threading part includes a connecting... The first threading part 7 and the second threading part 8 are coaxially arranged. One end of the first threading part 7 is protruding and one end of the second threading part 8 is recessed. The protrusion and the recess match and there is a gap between them. The gap between the protruding end of the first threading part 7 and the recessed end of the second threading part 8 forms an air passage 9. After the gas in the gas compression chamber 5 is pressurized, it is blown out through the air passage 9 to blow away the steel wire and remove the liquid on the surface of the steel wire. The other end of the first threading part 7 opposite to the protruding end is connected to the cover 3, and the other end of the second threading part 8 opposite to the recessed end passes through the outlet end of the housing 2.
[0028] The first threading part 7 and the second threading part 8 are fixedly connected by a connector 6. The connector 6 is a U-shaped plate and there are multiple connectors. The two ends of the U-shaped plate are respectively fixedly connected to the side walls of the first threading part 7 and the second threading part 8. The multiple connectors 6 are arranged in a circumferential array along the air passage 9. On the one hand, the connectors 6 will not affect the air intake of the air passage 9, and on the other hand, they ensure the coaxial fixed connection between the first threading part 7 and the second threading part 8.
[0029] The first threading section 7 has a sequentially connected mounting hole 10 and a first threading hole 11. The mounting hole 10 and the inlet hole 4 are connected to each other. The end of the first threading hole 11 away from the inlet hole 4 is the protruding end of the first threading section 7. The end face of the protruding end of the first threading section 7 is an annular bevel with an inner length and an outer length. A wear-resistant nozzle 16 is coaxially arranged in the mounting hole 10. The wear-resistant nozzle 16 is made of cemented carbide YG8. The inner diameter of the wear-resistant nozzle 16 is slightly larger than the diameter of the steel wire but smaller than the diameter of the first threading hole 11. The wear-resistant nozzle 16 ensures that when the steel wire passes through the first threading hole 10... The mounting hole 10 is located close to or on the axis of the first threading hole 10 to avoid contact with the first threading part 7 and causing wear to the first threading part 7. The second threading part 8 has a second threading hole 12 through it. The diameter of the mounting hole 10 is larger than that of the first threading hole 11, which limits the wear-resistant nozzle 16 and cooperates with the cover 3 to prevent the wear-resistant nozzle 16 from moving axially. The inner diameter of the wear-resistant nozzle 16 is smaller than that of the inner diameter of the first threading hole 11. The diameters of the inlet hole 4, the first threading hole 11 and the second threading hole 12 are the same. The inlet hole 4, the mounting hole 10, the first threading hole 11 and the second threading hole 12 are coaxially connected to each other in sequence.
[0030] As one possible implementation, when the diameter of the steel wire is 6.5-8mm, the inner diameter of the wear-resistant nozzle 16 is 10mm.
[0031] The cover 3 is fixedly connected to the end of the inlet of the housing 2 by bolts to ensure the installation limit of the wear-resistant nozzle 16.
[0032] Multiple mounting plates 13 are fixedly installed on the outer side of the outlet end of the housing 2. The mounting plates 13 are provided with through holes 14. The air knife of this utility model is fixed and installed through the mounting plates 13 and the through holes 14.
[0033] The end of the second threading hole 12 away from the first threading part 7 is set as a tapered threading outlet 15. The small end of the threading outlet 15 faces inward and the large end faces outward, which effectively prevents the steel wire from contacting the inner wall of the second threading part 8 when it passes through the air knife.
[0034] The distance between the two side walls of the air passage 9 is 1.5 mm. The gas in the gas compression chamber 5 is blown along the inclined surface of the protruding end of the first threading part 7 to the second threading hole 12, forming the air outlet direction of the air passage 9. The angle α between the air outlet direction of the air passage 9 and the axis of the second threading hole 12 is 30°.
[0035] Tests have shown that when the gap distance of the air passage 9 is 2mm and the angle between the air outlet direction and the axis of the second wire hole 12 is 60° or 45°, the liquid purging effect on the steel wire surface is poor, and borax crystallizes under the action of residual liquid. When the gap distance of the air passage 9 is 1.5mm and the angle between the air outlet direction and the axis of the second wire hole 12 is 30°, the residual liquid on the steel wire surface is basically purged and removed, and no crystallization occurs.
[0036] During use, the steel wire passes sequentially through the inlet hole 4, the wear-resistant nozzle 16, the first inlet hole 11, the second inlet hole 12, and the wire outlet 15. During this process, the blower continuously delivers gas from the air inlet pipe 1 to the gas compression chamber 5, and blows it onto the surface of the steel wire in the second wire outlet 12 through the air passage 9. The gap of the air passage 9 is set to 1.5mm, so that the gas is pressurized and blown onto the surface of the steel wire. The gas is blown onto the surface of the steel wire in a cone shape, so as to achieve comprehensive and efficient purging of residual liquid on the surface of the steel wire. At the same time, the air outlet direction is limited by the air passage 9 to ensure the purging effect, effectively ensure the dryness of the steel wire surface, and avoid the problem of borax crystallization.
[0037] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.
Claims
1. A wire drawing annular blowing air knife, characterized in that, The device includes an air inlet pipe (1), a housing (2), and a cover (3). One end of the air inlet pipe (1) is connected to a fan, and the other end is installed on the housing (2). The housing (2) has a cover (3) fixedly installed at the inlet end. The cover (3) has an inlet hole (4) through the middle. A wire threading part is coaxially installed inside the housing (2). The wire threading part and the inner wall of the housing (2) form a gas compression chamber (5). The air inlet pipe (1) is connected to the gas compression chamber (5). The wire threading part includes a connector (6) and a first wire threading part (7) and a second wire threading part coaxially installed. Part (8), one end of the first threading part (7) is raised and one end of the second threading part (8) is recessed. The raised and recessed parts match and there is a gap between them. The gap between the raised end of the first threading part (7) and the recessed end of the second threading part (8) forms an air passage (9). The first threading part (7) and the second threading part (8) are fixedly connected by a connector (6). The other end of the first threading part (7) opposite to the raised end is abutted against the cover (3). The other end of the second threading part (8) opposite to the recessed end passes through the outlet end of the housing (2).
2. The wire drawing annular blowing air knife according to claim 1, characterized in that, The first threading part (7) is provided with a connected mounting hole (10) and a first threading hole (11) in sequence. The mounting hole (10) and the inlet hole (4) are connected to each other. The end of the first threading hole (11) away from the inlet hole (4) is the protruding end of the first threading part (7). The end face of the protruding end of the first threading part (7) is an annular inclined surface with an inner length and an outer length.
3. The wire drawing annular blowing air knife according to claim 1, characterized in that, The second threading part (8) has a second threading hole (12) through it.
4. The wire drawing annular blowing air knife according to claim 2, characterized in that, The diameter of the mounting hole (10) is larger than that of the first wire hole (11). The diameters of the inlet hole (4), the first wire hole (11), and the second wire hole (12) are the same. The inlet hole (4), the mounting hole (10), the first wire hole (11), and the second wire hole (12) are coaxially connected to each other in sequence.
5. The wire drawing annular blowing air knife according to claim 1, characterized in that, The connector (6) is a U-shaped plate and there are multiple connectors. The two ends of the U-shaped plate are respectively fixedly connected to the side walls of the first threading part (7) and the second threading part (8). The multiple connectors (6) are arranged in a circumferential array along the air passage (9).
6. The wire drawing annular blowing air knife according to claim 2, characterized in that, A wear-resistant nozzle (16) is coaxially arranged inside the mounting hole (10).
7. The wire drawing annular blowing air knife according to claim 1, characterized in that, Multiple mounting plates (13) are fixedly installed on the outer side of the outlet end of the housing (2), and the mounting plates (13) are provided with through holes (14).
8. The wire drawing annular blowing air knife according to claim 3, characterized in that, The end of the second threading hole (12) away from the first threading part (7) is set as a cone to form a threading outlet (15), with the small end of the threading outlet (15) facing inward and the large end facing outward.
9. A wire drawing annular blowing air knife according to claim 6, characterized in that, The distance between the two side walls of the air passage (9) is 1.5 mm.
10. A wire drawing annular blowing air knife according to claim 1, characterized in that, The gas in the gas compression chamber (5) is blown along the inclined surface of the protruding end of the first threading part (7) to the second threading hole (12), forming the air outlet direction of the air passage (9). The angle α between the air outlet direction of the air passage (9) and the axis of the second threading hole (12) is 30°.