Air knife device for producing crimped plush

Abstract

The utility model discloses a kind of wind knife devices for producing crimp plush, the device includes the wind knife main body with straight blow opening in bottom, the side wing plate for ensuring hot air flow to realize rotational flow on both sides of wind knife main body is symmetrically installed in the both sides of the wind knife main body straight blow opening, the side wing plate is equipped with the planar portion with wind knife main body fixedly connected and the arc portion covered in the both sides of straight blow opening, the arc portion is the arc cover formed by bending from top to outside downward.This utility model is equipped with arc portion's side wing plate, based on the specific rotational flow principle of hot air flow in side wing plate, make the wind knife that can only straight blow originally successfully reformed to produce rotating air current, to ensure that hot air flow can rotate smoothly in it, with the excellent ability of producing crimp plush, by setting planar portion, cleverly use the existing mounting hole on original straight blow type wind knife, the installation process of side wing plate is conveniently completed, only two side wing plates are needed to be installed, and it is simple and efficient to operate.

Description

Technical Field

[0001] This utility model relates to the field of textile processing technology, specifically to an air knife device for producing curly plush. Background Technology

[0002] In the current textile industry, air knives play a crucial role in the production of plush fabric as an important piece of equipment. However, existing air knives generally use a direct-blowing method. Traditional direct-blowing air knives, due to limitations in their design and working principle, can only blow air in a single direction, which is completely inadequate for the process requirements of plush fabric production, which needs to create a curled effect. Furthermore, some existing hot air blowers capable of producing curled plush fabric are not only bulky and complex in structure, but also difficult to operate, requiring specialized technicians for operation and maintenance. This undoubtedly increases the labor and management costs for enterprises.

[0003] As the market develops, consumer demand for textile products is becoming increasingly diversified, with a growing demand for products featuring special plush effects (such as curly plush). In this context, factories wishing to produce such products often have no choice but to purchase new equipment, given their existing technological capabilities. This means either replacing the air knives with new ones or buying new hot air blowers specifically designed for producing curly plush products. For factories, this translates to a significant investment in equipment upgrades, greatly increasing production costs and placing considerable economic pressure on their operations. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a reasonably designed and simple air knife device that addresses the shortcomings of the existing technology, so as to ensure that the hot air flow can rotate and flow smoothly in the curled plush.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An air knife device for producing curly plush fabric includes an air knife body with a straight air outlet at the bottom. The device is characterized by side wing plates symmetrically installed on both sides of the straight air outlet to ensure that hot air flows in a rotating manner on both sides of the air knife body. Each side wing plate has a flat portion fixedly connected to the air knife body and an arc-shaped portion covering both sides of the straight air outlet. The arc-shaped portion is an arc-shaped cover formed by bending outwards and downwards from the top, with a bending angle of 180° to 225°.

[0006] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the air knife body includes a shell as an air duct and an upper pressure plate and a lower pressure plate installed in the shell. The inner cavity of the shell is divided into an upper air chamber, a middle air chamber and a lower air chamber by the upper pressure plate and the lower pressure plate. A duct connector communicating with the shell is installed on one side of the shell. Several air outlet holes are provided at the bottom of the shell. Air passage holes that allow adjacent air chambers to communicate are provided on both the upper pressure plate and the lower pressure plate. Air pressure blades are symmetrically installed on both sides of the bottom of the shell. A gap is provided between the bottom of the air pressure blades as a direct blowing port.

[0007] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the air passage is provided with a number of holes, and the holes are elongated.

[0008] The technical problem to be solved by this utility model can also be achieved by the following technical solution: an installation groove for installing the upper pressure plate and the lower pressure plate is provided on the inner wall of the housing.

[0009] The technical problem to be solved by this utility model can also be achieved through the following technical solution: a thermocouple for real-time monitoring of the temperature of the air knife is installed on the housing, and the thermocouple is installed on the housing through a thermocouple mounting bracket.

[0010] The technical problem to be solved by this utility model can also be achieved through the following technical solution: openings are provided at both ends of the housing to facilitate the installation of the upper pressure plate and the lower pressure plate, and end caps are installed at the openings. Support shafts are provided on the end caps to facilitate the installation of the air knife body.

[0011] Compared with existing technologies, this utility model, by incorporating side wing plates with arc-shaped sections, and based on the specific rotational flow principle of hot air within the side wing plates, successfully transforms the original air knife, which could only blow directly, into an air knife body capable of generating rotating airflow. This ensures that the hot air can rotate smoothly within it, giving it an excellent ability to produce curly plush. By ingeniously utilizing the existing mounting holes on the original direct-blowing air knife through the flat section, the installation process of the side wing plates can be completed conveniently. Only two side wing plates need to be installed, making the operation simple and efficient. Furthermore, by precisely designing the bending angle and curvature of the side wing plates, the flow rate of the rotating airflow is further guaranteed. Attached Figure Description

[0012] Figure 1 This is an overall sectional view of the air knife device described in this utility model; Figure 2 This is the front view of the wind knife without side fins; Figure 3 This is a structural diagram of the air outlet at the bottom of the air knife body; Figure 4 This is a sectional view of the upper pressure plate; Figure 5This is a view of the upper pressure plate from direction A. Figure 6 This is a view of the upper pressure plate from direction B. Figure 7 This is a top view of the lower pressure plate; Figure 8 This is the front view of the air knife blade.

[0013] In the diagram: 1-side wing plate, 2-upper pressure plate, 3-shell, 4-air duct connector, 5-lower pressure plate, 6-air pressure blade, 7-support shaft, 8-air passage hole, 9-air outlet hole, 10-thermocouple. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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, they should not be construed as limitations on this utility model.

[0016] Reference Figure 1-8 An air knife device for producing curly plush fabric includes an air knife body with a straight air outlet at the bottom. Side vanes 1 are symmetrically installed on both sides of the straight air outlet of the air knife body to ensure that the hot air flow rotates on both sides of the air knife body. The side vanes 1 have a flat part that is fixedly connected to the air knife body and an arc-shaped part that covers both sides of the straight air outlet. The arc-shaped part is an arc-shaped cover formed by bending from the top outward and downward. The bending angle of the arc-shaped cover is set according to the wind conditions, and is generally set to 180° to 225°.

[0017] The air knife body includes a housing 3 serving as an air duct and an upper pressure plate 2 and a lower pressure plate 5 installed inside the housing 3. The inner cavity of the housing 3 is divided into an upper air chamber, a middle air chamber, and a lower air chamber by the upper pressure plate 2 and the lower pressure plate 5. A duct connector 4 communicating with the housing is installed on one side of the housing 3. Several air outlet holes 9 are provided at the bottom of the housing 3. Air passage holes 8 that allow adjacent air chambers to communicate are provided on both the upper pressure plate 2 and the lower pressure plate 5. The air passage holes 8 of the upper pressure plate 2 are located on the side wall of the upper pressure plate 2, and the air passage holes 8 of the lower pressure plate 5 are located at the bottom of the lower pressure plate 5. Air pressure blades 6 are symmetrically installed on both sides of the bottom of the housing 3. A gap serving as a direct blowing port is provided between the bottoms of the air pressure blades 6. Several air passage holes 8 are provided, and they are elongated openings.

[0018] The inner wall of the housing 3 is provided with mounting grooves for installing the upper pressure plate and the lower pressure plate. A thermocouple 10 for real-time monitoring of the air knife temperature is installed on the housing 3, and the thermocouple 10 is mounted on the housing via a thermocouple mounting bracket.

[0019] The housing 3 has openings at both ends to facilitate the installation of the upper pressure plate and the lower pressure plate. End caps are installed at the openings, and support shafts 7 are provided on the end caps to facilitate the installation of the air knife body.

[0020] The air knife device of this invention innovatively introduces side plates with curved and flat sections. This curved side plate design is not a simple shape change, but rather the result of extensive theoretical research and practical verification. Through in-depth study of airflow patterns, the bending angle and curvature of the side plates were precisely designed to ensure smooth rotation and flow of hot air. By cleverly utilizing the existing mounting holes on the original direct-blowing air knife, the installation process of the side plates is convenient, requiring only two side plates to be installed, making the operation simple and efficient.

[0021] Based on the specific swirling flow principle of hot air within the side fins, the air knife, which was originally designed for direct blowing, has been successfully given the superior ability to produce curly plush products. This innovation has brought about several positive impacts. It precisely meets the growing market demand for curly plush products, making manufacturers more competitive in terms of product diversification. From a cost perspective, manufacturers do not need to invest heavily in replacing complex and expensive air knife devices, nor do they need to purchase new hot air blowers. This not only avoids production stoppages caused by equipment replacement, greatly shortens the production cycle, and ensures production continuity, but also significantly reduces equipment procurement and operating costs, saving manufacturers a considerable amount of money. In addition, this innovatively designed air knife also has significant advantages in installation and maintenance. Its simple structure and ease of operation greatly reduce maintenance costs and the workload of technical personnel.

[0022] Reference Figure 4-6Multiple elongated openings are provided on the upper pressure plate. These openings are significant, with A and B representing two air inlet directions. This design allows air to enter the air knife along a specific path and flow rate, creating conditions for subsequent air circulation and hot air generation. Next, the lower pressure plate 5 is inserted into the groove below the upper pressure plate 2. The lower pressure plate 5 also has multiple elongated openings, which cooperate with the openings on the upper pressure plate 2 to facilitate regular airflow within the air knife body. Air is more evenly distributed as it passes through these two pressure plates, laying the foundation for a stable hot air environment. After installing the upper and lower pressure plates inside the air knife body, the duct connector 4 is installed. The duct connector is the key entry point for hot air into the air knife system; its secure installation and sealing are crucial to the overall performance of the air knife. Precise connection ensures that hot air can be smoothly transferred from the external supply source to the air knife. Next, the air pressure blade 6 and side wing plate 1 are installed simultaneously. During installation, the gap between the ends of the two air knife blades 6 needs to be carefully adjusted. This gap should be flexibly adjusted according to the requirements of the plush curling degree and quality in actual production. After adjustment, the air pressure blade 6 and the side wing plate 1 are fixed together with bolts. This installation method ensures the stability of the air pressure blade and side wing plate, enabling them to withstand high-temperature and high-pressure hot air during operation and accurately guide the hot air to act on the plush. In order to monitor the temperature of the air knife in real time, thermocouples need to be installed on the air knife. A thermocouple mounting bracket is installed on the air knife body, which is specifically used for placing and installing thermocouples. Through real-time temperature monitoring of the thermocouples, the internal temperature of the air knife can be grasped in a timely manner, so as to accurately control the production process and avoid adverse effects on the plush quality due to excessively high or low temperatures, while also ensuring the safe operation of the equipment. By setting a sealing head, on the one hand, it can effectively seal the high-pressure hot air inside the air knife body, prevent hot air leakage, and ensure that there is sufficient pressure inside the air knife to drive the normal flow of hot air; on the other hand, it also plays a role in fixing the installation and providing stability to the entire air knife structure. Support shafts are fixed at both ends of the end caps on both sides of the air knife. The support shafts can firmly fix the air knife device to the required equipment, ensuring the stability of the air knife position during production and avoiding the impact of vibration and other factors on the quality and efficiency of plush production.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An air knife device for producing curly plush, the device comprising an air knife body with a straight air outlet at the bottom, characterized in that, Side wing plates are symmetrically installed on both sides of the direct air outlet of the air knife body to ensure that the hot air flow rotates on both sides of the air knife body. The side wing plates have a flat part that is fixedly connected to the air knife body and an arc-shaped part that covers both sides of the direct air outlet. The arc-shaped part is an arc-shaped cover formed by bending outward and downward from the top.

2. The air knife device for producing curly plush according to claim 1, characterized in that, The air knife body includes a housing that serves as an air duct and an upper pressure plate and a lower pressure plate installed inside the housing. The inner cavity of the housing is divided into an upper air chamber, a middle air chamber, and a lower air chamber by the upper and lower pressure plates. A duct connector communicating with the housing is installed on one side of the housing. Several air outlets are provided at the bottom of the housing. Air passage holes that allow adjacent air chambers to communicate are provided on both the upper and lower pressure plates. Air pressure blades are symmetrically installed on both sides of the bottom of the housing, and a gap is provided between the bottoms of the air pressure blades as a direct blowing port.

3. The air knife device for producing curly plush according to claim 2, characterized in that, The ventilation holes are provided in several parts and are elongated openings.

4. The air knife device for producing curly plush according to claim 2, characterized in that, The inner wall of the housing is provided with mounting grooves for installing the upper pressure plate and the lower pressure plate.

5. The air knife device for producing curly plush according to claim 2, characterized in that, A thermocouple for real-time monitoring of the air knife temperature is installed on the housing. The thermocouple is mounted on the housing via a thermocouple mounting bracket.

6. The air knife device for producing curly plush according to claim 2, characterized in that, The housing has openings at both ends to facilitate the installation of the upper and lower pressure plates. End caps are installed at the openings, and support shafts are provided on the end caps to facilitate the installation of the air knife body.

7. The air knife device for producing curly plush according to claim 1, characterized in that, The bending angle of the arc-shaped cover is 180° to 225°.

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