A hot air blowing type milling device configured with four groups of air knives

Abstract

A hot blowing type milling device is configured with four groups of air knives, the device comprises a main body frame, an intermediate box body for hot blowing milling treatment of the cloth is installed on the main body frame, one side of the intermediate box body is arranged as an input side, the other side of the intermediate box body is arranged as an output side, a cloth input roller is installed on the main body frame at the input side, a cloth output roller is installed on the main body frame at the output side, a cloth guide roller, a cloth spreading roller and a large round roller for cooperating with the cloth are sequentially installed in the intermediate box body from the input side to the output side, and the air knife assembly I, the air knife assembly II, the air knife assembly III and the air knife assembly IV for cooperating with the large round roller to perform the cloth milling treatment are installed in the intermediate box body at the large round roller side. The utility model discloses a plurality of different types of cloths can be processed by one device, the versatility and practicality of the device are improved, meanwhile, the production cost is reduced, the production efficiency and product quality are improved, better economic benefits and market competitiveness are brought to the factory.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, and in particular to a hot air blowing type fulling device equipped with four sets of air knives. Background Technology

[0002] In the field of plush product processing, hot air blowers play a crucial role. Based on the principle that plush bends under certain heat, they use a high-pressure blower to generate airflow, which is then ignited by a gas ignition device. This high-pressure hot air is blown out through a narrow gap, acting on the surface of plush products such as rabbit fur to curl the fibers and meet subsequent processing requirements. However, existing hot air blower products on the market have many drawbacks: Firstly, the unreasonable structure of the fan and hot air chamber leads to low air pressure in the blown gas. This makes it difficult for hot air to penetrate deep into the roots of the pile when processing thicker or longer pile fabrics such as thick rabbit fur fabric. Only a small amount of pile on the surface can be curled, which affects the appearance quality of the product and the efficiency of subsequent processing. For example, in actual production, for a common thick rabbit fur fabric, after processing with existing equipment, the pile curling is uneven and the depth is insufficient, resulting in the product not meeting the needs of the high-end market. Secondly, the unreasonable structure of the hot air chamber leads to uneven distribution of hot air. Different areas of the same batch of fleece are affected differently by hot air, resulting in varying degrees of fleece curl. Some areas are excessively curled or even stick together, while others are insufficiently curled, which seriously affects the overall quality and consistency of the product. For example, when processing a batch of cashmere and rabbit hair blended fleece, the uneven hot air caused significant quality differences in the product, increasing the difficulty and cost of subsequent finishing and dyeing processes. Third, the equipment has limited functionality and is only suitable for processing specific types and specifications of fleece fabric. For high-end or special material fleece fabrics, such as delicate cashmere fleece fabrics, existing equipment cannot meet their high requirements for the degree of fleece curl and uniformity. Factories have to equip themselves with a variety of different hot air blower equipment, which increases equipment investment and site occupation costs. Fourth, low energy efficiency. Gas ignition equipment has low combustion efficiency, and hot air loses a lot of energy during transmission due to the structural problems of the fan and hot air chamber. For example, hot air is seriously lost in the air duct due to friction and leakage, which wastes energy and increases costs, and does not meet the development requirements of energy conservation and emission reduction. Fifth, the equipment has poor stability and reliability. Key components such as old-style fans and gas ignition equipment are prone to failure due to heavy workloads and operation under unreasonable structures, leading to production interruptions, increased maintenance costs, impacting production progress and product delivery, and reducing the work efficiency and enthusiasm of operators. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a hot air blowing type felting equipment equipped with four sets of air knives. One machine can process multiple different types of felt, improving the versatility and practicality of the equipment, while reducing production costs, improving production efficiency and product quality, and bringing better economic benefits and market competitiveness to the factory.

[0004] The technical problem to be solved by this utility model is achieved through the following technical solution. This utility model is a hot air blowing type felting device equipped with four sets of air knives. The device includes a main frame, on which an intermediate box for hot air blowing felting treatment of felt fabric is installed. One side of the intermediate box is set as the input side, and the other side of the intermediate box is set as the output side. A felt fabric input roller is installed on the main frame on the input side, and a felt fabric output roller is installed on the main frame on the output side. From the input side to the output side, a guide roller, a spreading roller, and a large circular roller for cooperating with the felt fabric are installed sequentially in the intermediate box. An air knife assembly I, an air knife assembly II, an air knife assembly III, and an air knife assembly IV for cooperating with the large circular roller for felting treatment of felt fabric are installed in the intermediate box around the large circular roller.

[0005] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the hot air blowing type felting equipment with four sets of air knives as described above, the air knife assembly I and air knife assembly II are arranged on the upper and lower sides of the side of the large circular roller near the input side, and the air knife assembly III and air knife assembly IV are arranged on the upper side of the side of the large circular roller near the output side.

[0006] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the hot air blowing type felting equipment with four sets of air knives as described above, the air knife assembly I, air knife assembly II, air knife assembly III and air knife assembly IV all include an air knife body rotatably mounted on the intermediate box, and a power motor I is also installed on the intermediate box, and the power motor I is connected to the air knife body in a transmission connection.

[0007] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the hot air blowing type felting equipment with four sets of air knives as described above, a side box I is installed on the main frame on one side of the middle box. Four sets of burners are installed in the side box I. The four sets of burners are arranged in a one-to-one correspondence with air knife assembly I, air knife assembly II, air knife assembly III and air knife assembly IV. The gas distribution chambers of the four sets of burners extend into the middle box and are respectively connected to air knife assembly I, air knife assembly II, air knife assembly III and air knife assembly IV. A high-pressure blower for cooperating with the burners is also installed on the left box.

[0008] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the hot air blowing type felting equipment with four sets of air knives described above, there are four sets of high-pressure blowers, and the specifications of the four sets of high-pressure blowers are different.

[0009] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the hot air blowing type felting equipment with four sets of air knives as described above, a side box II is installed on the main frame on the other side of the middle box. The guide roller, the spreading roller and the large circular roller all extend into the side box II. Several power motors II for driving the guide roller, the spreading roller and the large circular roller are installed in the side box II.

[0010] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the hot air blowing type felting equipment with four sets of air knives described above, a traction roller for cooperating with the felt is also installed in the middle box near the output side, and several guide rollers are also installed in the middle box at the guide roller, spreading roller, large circular roller and traction roller.

[0011] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the hot air blowing type felting equipment with four sets of air knives described above, an adjusting roller is also installed on the upper part of the main frame on the input side. The adjusting roller is installed on the main frame through a top support cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Enhance the versatility and practicality of equipment Traditional felting equipment has a single function and is limited to the types of felt it can handle. Factories that process multiple types of felt need to purchase multiple dedicated machines, which take up space and are difficult to manage and maintain. The four-set air knife hot air felting equipment of this utility model can flexibly adjust the air knife parameters according to the characteristics of different felts, and can process a variety of felts such as cashmere and rabbit hair. Its versatility and practicality are greatly improved, meeting diverse production needs. 2. Significantly reduce production costs Existing technologies require the purchase of multiple specialized equipment, which is costly, and the energy consumption, maintenance costs, and manpower investment of multiple pieces of equipment are also high. In contrast, this utility model has a single piece of equipment that can perform multiple processing tasks, reducing equipment purchase costs; the reduction in the number of pieces of equipment reduces energy consumption and maintenance costs; and the reduction in the number of operators reduces labor costs, thus significantly reducing factory production costs from multiple aspects. 3. Improve production efficiency and product quality This equipment enables continuous automation of fleece processing, with a smooth process from input to output, shortening the production cycle and improving efficiency. Four sets of air knives work together to precisely control the blowing parameters, uniformly and effectively processing the fleece, making the fleece neat and dense, soft to the touch, and significantly improving product quality, meeting the market demand for high-quality fleece. 4. Enhance the factory's economic efficiency and competitiveness This invention can reduce production costs, improve efficiency and quality, enhance product quality, and thus enable factories to price more flexibly, attract customers with competitive prices, expand market share, meet large-volume orders and high-quality standards, enhance customer trust and satisfaction, establish long-term cooperation, help factories stand out in the market, enhance competitiveness, and achieve sustainable development. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the side box I of this utility model; Figure 4 This is a schematic diagram of the side box II of this utility model; Figure 5 This is a schematic diagram of the burner structure of this utility model; Figure 6 This is a schematic diagram of the structure of the air knife body of this utility model. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] Reference Figure 1-6A hot air shrinking device equipped with four sets of air knives includes a main frame 1, which serves as a support frame and provides a stable mounting base for other components, ensuring that the device remains stable during operation. An intermediate box 3 for hot air shrinking of the fleece is installed on the main frame 1. One side of the intermediate box 3 is designated as the input side, and the other side is designated as the output side. A fleece input roller 1.1 is installed on the main frame 1 on the input side to smoothly introduce the fleece to be processed into the intermediate box 3. A fleece output roller 1.2 is installed on the main frame 1 on the output side to smoothly deliver the fleece that has undergone shrinking treatment out of the device.

[0016] Inside the intermediate housing 3 from the input side to the output side, there are sequentially installed a guide roller 10.5, a spreading roller 10.3, and a large circular roller 4 for cooperating with the fleece. The guide roller 10.5 guides the direction of the fleece and can accurately transport the fleece to the subsequent processing stage according to the predetermined path, ensuring the stable running trajectory of the fleece in the housing. The spreading roller 10.3 further spreads the fleece. Through its special shape and surface texture, it spreads the fleece evenly, eliminating wrinkles and twists that may occur during the transport process, so that the fleece can enter the processing area of ​​the large circular roller 4 in a flat state. Inside the intermediate housing 3 around the large circular roller 4, there are air knife components I5, II6, III7, and IV8, which work together with the large circular roller 4 to perform the felting process on the fleece. The large circular roller 4 is one of the core components of the fleece felting process. It works together with air knife components I5, II6, III7, and IV8 to complete the hot air felting process on the fleece. The diameter and surface material of the large circular roller 4 are carefully designed to ensure that the fleece is subjected to uniform force while avoiding excessive compression or wear on the fleece.

[0017] Preferably, the air knife assembly I5 and air knife assembly II6 are disposed on the upper and lower sides of the side of the large circular roller 4 near the input side, and the air knife assembly III7 and air knife assembly IV8 are disposed on the upper side of the side of the large circular roller 4 near the output side. Air knife assembly I5 and air knife assembly II6 can perform preliminary hot air blowing treatment on the fleece when it first contacts the large circular roller 4, causing the fleece surface to gradually shrink and set. Air knife assembly III7 and air knife assembly IV8 can further strengthen the fleece, ensuring that the fleece shrinking effect reaches its optimal state.

[0018] The air knife assembly I5, air knife assembly II6, air knife assembly III7, and air knife assembly IV8 all include an air knife body 11 rotatably mounted on the intermediate housing 3. A power motor I12 is also mounted on the intermediate housing 3, and the power motor I12 is drive-connected to the air knife body 11. The air knife body 11 is mounted on the intermediate housing 3 via a support shaft, and the motor shaft of the power motor I12 is drive-connected to the support shaft, facilitating rotational adjustment of the air knife body 11 to adjust its air outlet angle.

[0019] To coordinate the operation of air knife assemblies I5, II6, III7, and IV8, a side housing I9 is ​​installed on the main frame 1 on one side of the intermediate housing 3. Four sets of burners 2 are installed within the side housing I9, each corresponding to one of the air knife assemblies I5, II6, III7, and IV8. The burner 2 is a key component for generating hot air; it heats the air by burning fuel (such as natural gas or liquefied petroleum gas) through an ignition controller, providing the necessary hot air for the air knife assemblies. The gas distribution chambers of the four burners 2 extend into the intermediate housing 3 and are connected to the air knife assemblies I5, II6, III7, and IV8 respectively, ensuring that each air knife assembly receives a sufficient and stable supply of hot air, thus guaranteeing a uniform and consistent hot air treatment effect on the velvet fabric. A gas inlet 9.1 and a compressed air inlet 9.2 are also provided within the side housing I9 to facilitate the supply of fuel and air to the burners 2.

[0020] A high-pressure blower 9.3 for use with burner 2 is also installed on the left housing. Preferably, there are four sets of high-pressure blowers 9.3 with different specifications. The high-pressure blowers 9.3 of different specifications can provide hot air with different air volume and air pressure according to the actual needs of each air knife component. By reasonably configuring high-pressure blowers 9.3 of different specifications, fine processing of the fleece can be achieved, improving the fleece effect and product quality.

[0021] A side box II10 is installed on the main frame 1 on the other side of the intermediate box 3. The guide roller 10.5, the spreading roller 10.3, and the large circular roller 4 all extend into the side box II10. Several power motors II10.1 for driving the guide roller 10.5, the spreading roller 10.3, and the large circular roller 4 are installed inside the side box II10. Multiple power motors II10.1 are provided to drive the rotation of the guide roller 10.5, the spreading roller 10.3, and the large circular roller 4, respectively, so as to achieve precise control of the speed and direction of the fleece conveying, and ensure that the fleece can be fleece-flocked in the equipment according to the predetermined process requirements.

[0022] In actual use, to better facilitate the movement of the fleece within the intermediate housing 3, a traction roller 10.2 for cooperating with the fleece is installed in the intermediate housing 3 near the output side. Several guide rollers 10.4 are also installed in the intermediate housing 3 at the locations of the guide roller 10.5, spreading roller 10.3, large circular roller 4, and traction roller 10.2. The traction roller 10.2 provides a certain pulling force to ensure that the fleece maintains appropriate tension throughout the processing, allowing the fleece to adhere tightly to the surface of the large circular roller 4, thus better receiving the hot air treatment from the air knife assembly. The guide rollers 10.4 further optimize the fleece's transport path, ensuring a smooth transition between rollers, reducing friction between the fleece and rollers, lowering the risk of fleece damage, and improving equipment operating efficiency.

[0023] An adjusting roller 1.3 is also installed on the upper part of the main frame 1 on the input side. The adjusting roller 1.3 is mounted on the main frame 1 via a top support cylinder 1.4. Specifically, the top support cylinder 1.4 is vertically mounted on the main frame 1, and the adjusting roller 1.3 is mounted on the piston rod end of the top support cylinder 1.4. When it is necessary to process velvet of different thicknesses or materials, the height and position of the adjusting roller 1.3 can be adjusted by adjusting the top support cylinder 1.4 to change the tension of the velvet when it enters the equipment, ensuring that the velvet can enter the subsequent processing stage in the best condition, thereby improving the versatility and adaptability of the equipment.

[0024] The actual working process of the hot air blowing type fulling device with four sets of air knives provided by this utility model is as follows: 1. According to the requirements of the production task, select a suitable fleece, introduce one end of the fleece into the fleece input roller 1.1, and manually rotate the input roller to make the fleece smoothly enter the intermediate box 3, and pass through the guide roller 10.5, the spreading roller 10.3 and the large circular roller 4 in sequence. When the fleece reaches the vicinity of the traction roller 10.2, fix the other end of the fleece on the fleece output roller 1.2 to ensure that the fleece is in an appropriate tension state throughout the equipment. 2. Start each power motor II10.1, and the guide roller 10.5, spreading roller 10.3, large circular roller 4 and traction roller 10.2 will start to rotate, driving the fleece to be transported in the intermediate box 3 along the predetermined path. The spreading roller 10.3, through its special shape and surface texture, spreads the fleece evenly, eliminating wrinkles and twists that may occur during the transport process, so that the fleece is flat and attached to the surface of the large circular roller 4. 3. Simultaneously, four sets of burners 2 are started. Fuel (such as natural gas or liquefied gas) is burned in burner 2 to heat the air. The heated hot air is delivered to air knife assembly I5, air knife assembly II6, air knife assembly III7 and air knife assembly IV8 through the gas distribution chamber. Four sets of high-pressure blowers 9.3 of different specifications start working according to preset parameters to provide hot air with different air volume and air pressure to each air knife assembly. The air knife assembly I5 and the air knife assembly II6 start blowing hot air from the upper and lower sides of the large circular roller 4 near the input side, and perform preliminary hot air blowing treatment on the cloth that has just come into contact with the large circular roller 4, so that the pile on the surface of the cloth begins to gradually shrink and set. Air knife assembly III7 and air knife assembly IV8 work on the upper side of the large circular roller 4 near the output side to further enhance the heat blowing treatment of the fleece. These four sets of air knife assemblies work together to form a continuous and efficient heat blowing treatment area, ensuring that the fleece is subjected to uniform and sufficient heat blowing during the entire transmission process, thereby achieving the ideal fleece shrinking effect. 4. After the fleece fabric has completed the predetermined fleece treatment length, the operator first stops the operation of each power motor II10.1. The guide roller 10.5, spreading roller 10.3, large circular roller 4, and traction roller 10.2 gradually stop rotating, and the fleece fabric stops being transported. Then, the four sets of burners 2 and high-pressure blowers 9.3 are turned off in sequence to stop the supply of hot air; fleece fabric processing and equipment cleaning. 5. Remove the processed velvet from the velvet output roller 1.2 for subsequent inspection, packaging and other processes.

Claims

1. A hot air blowing type fulling device equipped with four sets of air knives, characterized in that: The equipment includes a main frame, on which an intermediate box for hot air shrinking of the fleece is mounted. One side of the intermediate box is designated as the input side, and the other side as the output side. A fleece input roller is mounted on the main frame on the input side, and a fleece output roller is mounted on the main frame on the output side. From the input side to the output side, a guide roller, a spreading roller, and a large circular roller are sequentially mounted in the intermediate box for cooperating with the fleece. In the intermediate box around the large circular roller, air knife assembly I, air knife assembly II, air knife assembly III, and air knife assembly IV are mounted for cooperating with the large circular roller to perform fleece shrinking.

2. The hot air blowing type fulling device equipped with four sets of air knives according to claim 1, characterized in that: The air knife assembly I and air knife assembly II are located on the upper and lower sides of the side of the large circular roller near the input side, while the air knife assembly III and air knife assembly IV are located on the upper side of the side of the large circular roller near the output side.

3. The hot air blowing type felting equipment equipped with four sets of air knives according to claim 1 or 2, characterized in that: The air knife assembly I, air knife assembly II, air knife assembly III and air knife assembly IV all include an air knife body rotatably mounted on an intermediate housing. A power motor I is also mounted on the intermediate housing, and the power motor I is connected to the air knife body for transmission.

4. The hot air blowing type fulling device equipped with four sets of air knives according to claim 1, characterized in that: Side housing I is installed on the main frame on one side of the middle housing. Four sets of burners are installed in side housing I. The four sets of burners are set one-to-one with air knife assembly I, air knife assembly II, air knife assembly III and air knife assembly IV. The gas distribution chambers of the four sets of burners extend into the middle housing and are connected to air knife assembly I, air knife assembly II, air knife assembly III and air knife assembly IV respectively. A high-pressure blower for cooperating with the burners is also installed on the left housing.

5. The hot air blowing type fulling device equipped with four sets of air knives according to claim 4, characterized in that: The high-pressure blower is provided in four sets, and the four sets of high-pressure blowers have different specifications.

6. The hot air blowing type fulling device equipped with four sets of air knives according to claim 1 or 4, characterized in that: Side box II is installed on the main frame on the other side of the middle box. The guide roller, spreading roller and large circular roller all extend into side box II. Several power motors II for driving the guide roller, spreading roller and large circular roller are installed in side box II.

7. The hot air blowing type fulling device equipped with four sets of air knives according to claim 6, characterized in that: A traction roller for cooperating with the fleece is also installed in the intermediate box near the output side, and several guide rollers are also installed in the intermediate box at the guide roller, spreading roller, large circular roller and traction roller.

8. The hot air blowing type felting equipment equipped with four sets of air knives according to claim 1, characterized in that: An adjusting roller is also installed on the upper part of the main frame on the input side. The adjusting roller is mounted on the main frame by a top support cylinder.

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