An improved air knife for textile machinery
By setting multiple air inlets and flow equalization plates in the air knife, combined with reinforcing ribs and hard anodizing treatment, the problems of airflow turbulence and structural deformation are solved, and the uniformity and hardness of the air outlet are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU BEREK MASCH EQUIP CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-03
AI Technical Summary
The existing air knife's inlet design leads to turbulent airflow and uneven air output. Furthermore, its overall structural rigidity is low, making it prone to deformation in high-temperature gas environments.
Multiple equidistant air inlets are set in the air knife, and a flow equalization plate is provided to ensure uniform airflow diffusion. Reinforcing ribs and hard anodizing treatment are added to improve structural strength and corrosion resistance.
This improved the uniformity of airflow from all parts of the air knife, enhanced its overall hardness, prevented deformation under high-temperature conditions, and improved its corrosion resistance and wear resistance.
Smart Images

Figure CN224455322U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air knives, and in particular to an improved air knife for textile machinery. Background Technology
[0002] In industrial production, some products require air-blowing equipment to move from one step to the next via conveyor systems. Air knives are one of the most commonly used air-blowing devices, widely used in industries such as printing, electronic plating, hardware, pharmaceuticals, and printed circuit boards for cooling, cleaning, liquid blowing, and drying of products.
[0003] The existing patent number is CN204513979 U, which discloses an air knife, which includes a hollow body, a top wall, an air outlet and a first side wall perpendicular to the top wall. The body has an air cavity, and the air outlet is disposed opposite to the top wall. The air cavity gradually narrows from the top wall toward the air outlet. The air outlet includes a guide section disposed at an inclination relative to the top wall and a slit-shaped air outlet. The guide section is a short straight channel, and the air guiding direction of the guide section is disposed at an inclination relative to the top wall. The air outlet is located at the end of the guide section, and an air inlet is opened on the first side wall.
[0004] However, the patent still has the following problems in practical use:
[0005] 1. The air inlets are located at both ends, causing turbulent airflow and resulting in different wind forces at both ends and in the middle of the air knife, leading to uneven air output.
[0006] 2. It has a thin-walled structure and low hardness, making it prone to deformation in high-temperature gas environments. Utility Model Content
[0007] In order to overcome the above-mentioned defects of the prior art, this utility model provides an improved air knife for textile machinery to solve the problems existing in the background art.
[0008] This utility model provides the following technical solution: an improved air knife for textile machinery, comprising:
[0009] The air inlet housing is a hollow structure with multiple air inlets on one side, and a flow equalization plate is provided at the bottom of the interior of the air inlet housing.
[0010] There are two blades, which are detachably installed on both sides of the bottom of the air inlet housing and form an inverted cone-shaped structure. The bottom of the two blades forms an air outlet.
[0011] There are two assembly plates, which are used to connect the assembly blade and the air inlet shell to form a complete air knife structure.
[0012] Preferably, the inner wall of the air inlet shell is provided with multiple reinforcing ribs, the thickness of the air inlet shell and the blade is 5-15mm, and their surfaces are subjected to hard anodizing treatment.
[0013] Preferably, the air inlet shell is integrally molded, the top of the air inlet shell has a rectangular surface structure, and the bottom of the air inlet shell has a V-shaped surface structure.
[0014] Preferably, the flow equalization plate is located at the position of the V-shaped surface structure, and the flow equalization plate has a plurality of evenly arranged elongated holes.
[0015] Preferably, both ends of the reinforcing rib are provided with threaded holes for connecting bolts.
[0016] Preferably, the width of the air outlet is 0.05-0.15mm.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] 1. This utility model has multiple air inlets arranged at equal intervals on one side of the air inlet shell, so that multiple air sources simultaneously bring in gas to both ends and the middle of the air inlet shell. Then, with the addition of a flow equalization plate, the airflow is evenly diffused to the air outlet, which greatly improves the uniformity of the air outlet and keeps the air knife the same at all points, thus improving the air outlet effect.
[0019] 2. This utility model increases the overall thickness of the air knife and adds reinforcing ribs to improve its strength. At the same time, it performs hard anodizing on the outer surface of the air knife to improve its corrosion resistance, wear resistance, weather resistance, insulation and adsorption properties, greatly improving the overall hardness of the air knife and preventing deformation in high-temperature gas environments. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the air knife structure of this utility model.
[0021] Figure 2 This is a schematic diagram of the exploded structure of this utility model.
[0022] Figure 3 This is a partially enlarged structural diagram of the air inlet shell of this utility model.
[0023] Figure 4 This is a cross-sectional structural diagram of the present invention.
[0024] The attached diagram is labeled as follows: 1. Air inlet shell; 11. Rectangular surface; 12. V-shaped surface; 13. Flow equalization plate; 14. Reinforcing rib; 2. Air inlet; 3. Blade; 31. Air outlet; 4. Assembly plate. Detailed Implementation
[0025] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.
[0026] This utility model provides an improved air knife for textile machinery, such as Figure 1-4 As shown, it includes:
[0027] The air inlet shell 1 is a hollow structure with multiple air inlets 2 on one side and a flow equalization plate 13 at the bottom of the interior of the air inlet shell 1.
[0028] There are two blades 3. The two blades 3 are detachably installed on both sides of the bottom of the air inlet housing 1 and form an inverted cone-shaped structure. The bottom of the two blades 3 forms an air outlet 31.
[0029] Assembly plates 4, of which there are two, are used to connect the assembly blade 3 and the air inlet shell 1 to form a complete air knife structure.
[0030] Multiple air inlets 2 are arranged at equal intervals on one side of the air inlet shell 1, so that multiple air sources simultaneously bring in gas to both ends and the middle of the air inlet shell 1. Then, with the addition of the flow equalization plate 13, the airflow is evenly diffused to the air outlet 31, which greatly improves the uniformity of the air outlet, keeps the air knife the same everywhere, and improves the air outlet effect.
[0031] In this embodiment, the inner wall of the air inlet shell 1 is provided with multiple reinforcing ribs 14. The thickness of the air inlet shell 1 and the blade 3 is 5mm, and their surfaces are subjected to hard anodizing treatment. The air inlet shell 1 is integrally formed. The top of the air inlet shell 1 has a rectangular surface 11 structure, and the bottom of the air inlet shell 1 has a V-shaped surface 12 structure.
[0032] The overall thickness of the air knife is increased, and reinforcing ribs are added to improve its strength. At the same time, the outer surface of the air knife is hardened to improve its corrosion resistance, wear resistance, weather resistance, insulation and adsorption properties, which greatly improves the overall hardness of the air knife and prevents deformation in high-temperature gas environments.
[0033] In this embodiment, the flow equalization plate 13 is disposed at the structural position of the V-shaped surface 12, and the flow equalization plate 13 has a plurality of evenly arranged elongated holes.
[0034] In this embodiment, threaded holes for connecting bolts are provided at both ends of the reinforcing rib 14, and multiple corresponding holes are provided at the bottom of the air inlet shell and the air knife. The connecting plate, air inlet shell and blade are assembled and spliced by using bolts in conjunction with the threaded holes.
[0035] In this embodiment, the width of the air outlet 31 is 0.05mm.
[0036] In another embodiment, the air inlet housing 1 has a thickness of 15 mm and its surface is hard anodized.
[0037] In another embodiment, the width of the air outlet 31 is 0.15 mm.
[0038] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.
[0039] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.
Claims
1. A modified air-knife for a spinning machine, characterized in that, include: The air inlet shell (1) is a hollow structure with multiple air inlets (2) on one side. A flow equalization plate (13) is provided at the bottom of the interior of the air inlet shell (1). Blade (3), there are two blades (3), the two blades (3) are detachably installed on both sides of the bottom of the air inlet shell (1) and form an inverted cone structure, and the bottom of the two blades (3) forms an air outlet (31); Assembly plates (4), of which there are two, are used to connect the assembly blade (3) and the air inlet shell (1) to form a complete air knife structure.
2. A modified air-knife for spinning machine according to claim 1, wherein: The inner wall of the air inlet shell (1) is provided with multiple reinforcing ribs (14). The thickness of the air inlet shell (1) and the blade (3) is 5-15mm, and their surfaces are subjected to hard anodizing treatment.
3. A modified air-knife for a spinning machine according to claim 2, characterized in that: The air inlet shell (1) is integrally molded. The top of the air inlet shell (1) is a rectangular surface (11) structure, and the bottom of the air inlet shell (1) is a V-shaped surface (12) structure.
4. A modified air-knife for a spinning machine according to claim 3, characterized in that: The flow equalization plate (13) is located at the V-shaped surface (12) structure position, and the flow equalization plate (13) has a number of evenly arranged elongated holes.
5. The improved air-knife of claim 2, wherein: Both ends of the reinforcing rib (14) are provided with threaded holes for connecting bolts.
6. The improved air-knife of a spinning machine according to claim 1, wherein: The width of the air outlet (31) is 0.05-0.15mm.