A guide roller replacement device for an air-jet loom

Abstract

This utility model relates to the field of air-jet loom technology and discloses a guide roller replacement device for an air-jet loom. It includes an air-jet loom body, with a drive shaft installed on the inner wall of the loom body. One end of the drive shaft is fixedly connected to a mounting shaft, and one end of the mounting shaft is fixedly connected to a first flange. A second flange is movably installed on one end of the first flange. This utility model has the following advantages and effects: the width corresponds to the positioning shaft, fitting precisely into the gap between the second flange and the guide roller. After the positioning bracket supports the positioning shaft, the bolts are loosened, separating the first and second flanges. After removing the bolts at the other end, the lifting arm lowers to remove the guide roller, and the positioning shaft of the other guide roller is placed on the positioning bracket. The positioning bracket rises precisely, ensuring accurate alignment between the second and first flanges. No manual lifting of the guide roller is required when fixing the bolts, making replacement more labor-saving and convenient.

Description

Technical Field

[0001] This utility model relates to the field of air-jet loom technology, and in particular to a guide roller replacement device for an air-jet loom. Background Technology

[0002] Air-jet looms are shuttleless looms that use jet airflow to pull the weft yarn through the shed. The working principle is to use air as the weft-introducing medium, and the compressed airflow generated by the jet will generate frictional traction force on the weft yarn to pull it through the shed. The jet generated by the airflow achieves the purpose of weft introduction.

[0003] In the prior art, Chinese Patent Publication No. CN219137062U discloses a guide roller replacement mechanism for an air-jet loom used in air-jet fabric production. The mechanism includes an air-jet loom, a guide roller body, and two fixing frames. Mounting housings are installed on both inner walls of the air-jet loom, and fixing mechanisms for fixing the guide roller body are provided on both inner walls. Each fixing mechanism includes a rotating cylinder rotatably connected to the inner wall of the air-jet loom. A double-ended screw is provided on the rotating cylinder, and two limiting blocks are provided on the side wall of the double-ended screw. This invention features a fixing mechanism that allows for the fixing and unfixing of the guide roller mounting shaft simply by rotating the two double-ended screws, thereby improving the guide roller replacement efficiency. Furthermore, the guide roller replacement mechanism is located on the outer wall of the air-jet loom, thus improving the rationality of the device design.

[0004] However, in actual use, when removing and installing the guide roller, both ends need to be disassembled or fixed in sequence. At this time, workers need to support the guide roller to prevent it from tilting and affecting the fixation, which is quite laborious. It is also inconvenient to position both ends of the guide roller during installation, so improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a guide roller replacement device for an air-jet loom, which eliminates the need for manual lifting of the guide roller when fixing bolts, thus making replacement more labor-saving and convenient.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a guide roller replacement device for an air-jet loom, comprising an air-jet loom body, a drive shaft provided on the inner wall of the air-jet loom body, a mounting shaft fixedly connected to one end of the drive shaft, a first flange fixedly connected to one end of the mounting shaft, a second flange movably mounted on one end of the first flange, bolts threaded into the interior of the second flange, a positioning shaft fixedly connected to one side of the second flange, a guide roller provided at one end of the positioning shaft, a positioning bracket provided at the bottom of the guide roller, and a lifting arm fixedly connected to the bottom of the positioning bracket.

[0007] By adopting the above technical solution, when replacing the guide roller, the lifting arm rises, thereby driving the positioning bracket to rise. The positioning bracket corresponds to the positioning shaft, and its width corresponds to the positioning shaft. It is inserted into the gap between the second flange and the guide roller. After the positioning bracket supports the positioning shaft, the bolts are loosened and the first flange and the second flange are separated. After removing the bolts at the other end, the lifting arm descends and the guide roller is removed. The positioning shaft of the other guide roller is placed on the positioning bracket. The positioning bracket rises to a precise height, and after rising, the second flange and the first flange can be accurately aligned. When fixing the bolts, there is no need to manually lift the guide roller, making the replacement more labor-saving and convenient.

[0008] A further feature of this invention is that a connecting rod is fixedly connected to one end of the lifting arm, and the number of lifting arms is two.

[0009] By adopting the above technical solution, the two lifting arms are connected by a connecting rod, and the two lifting arms rise and fall synchronously.

[0010] A further feature of this invention is that a cylinder is fixedly connected to the bottom of the inner wall of the air-jet loom body, and a telescopic rod is fixedly connected to the output end of the cylinder.

[0011] By adopting the above technical solution, after the cylinder is started, it drives the telescopic rod to extend and retract.

[0012] A further feature of this invention is that a balance arm is fixedly connected to the top of the telescopic rod, and one end of the balance arm is fixedly connected to the lifting arm.

[0013] By adopting the above technical solution, the telescopic rod drives the balance arm to rise and fall, thereby causing the lifting arm to rise and fall automatically.

[0014] A further feature of this invention is that a buffer plate is fixedly connected to the other end of the balance arm, and a slider is fixedly connected to one side of the buffer plate.

[0015] By adopting the above technical solution, the slider moves when the buffer plate rises and falls.

[0016] A further feature of this invention is that the inner wall of the air-jet loom body is provided with a groove, and the inner wall of the groove is slidably connected to the slider.

[0017] By adopting the above technical solution, the sliding of the slider increases friction and improves stability.

[0018] A further feature of this invention is that a rubber layer is fixedly connected to the top of the positioning bracket, and anti-slip particles are fixedly connected to the outer surface of the rubber layer.

[0019] By adopting the above technical solution, the rubber layer and anti-slip particles increase stability and anti-slip effect, and the guide rollers are more stable during the lifting process.

[0020] A further feature of this invention is that an anti-compression layer is fixedly connected to the outer surface of the connecting rod, and a reinforcing layer is fixedly connected to the outer surface of the anti-compression layer.

[0021] By adopting the above technical solutions, the compression layer and reinforcement layer increase the support strength of the connecting rod, making it less prone to deformation and bending.

[0022] A further feature of this invention is that a bearing is fixedly connected to one side of the inner wall of the air-jet loom body, and a support shaft is fixedly connected to the inner wall of the bearing.

[0023] By adopting the above technical solution, the support shaft drives the inner ring of the bearing to rotate, and the support shaft supports the positioning shaft at the other end of the guide roller.

[0024] A further feature of this invention is that a third flange is fixedly connected to one end of the supporting shaft, and the number of the second flanges is two.

[0025] By adopting the above technical solution, the third flange has the same function as the first flange and is connected to the two second flanges respectively.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model, through the coordinated arrangement of the air-jet loom body, drive shaft, mounting shaft, first flange, second flange, bolts, positioning shaft, guide roller, positioning bracket, and lifting arm, enables the device to be used so that when the operator replaces the guide roller, the lifting arm rises, thereby driving the positioning bracket to rise. The positioning bracket corresponds to the positioning shaft, and its width corresponds to the positioning shaft. It is inserted into the gap between the second flange and the guide roller. After the positioning bracket supports the positioning shaft, the bolts are loosened and the first flange and second flange are separated. After the bolts at the other end are removed, the lifting arm descends and the guide roller is removed. The positioning shaft of the other guide roller is placed on the positioning bracket. The positioning bracket rises to a precise height, and after rising, the second flange and the first flange can be accurately aligned. When fixing the bolts, there is no need to manually lift the guide roller, making replacement more labor-saving and convenient.

[0028] 2. This utility model, through the coordinated arrangement of connecting rod, cylinder, telescopic rod, balance arm, buffer plate, slider, slide groove, rubber layer, anti-compression layer, reinforcing layer, bearing, support shaft, and third flange, enables the two lifting arms to be connected by the connecting rod during use, allowing the two lifting arms to rise and fall synchronously. After the cylinder is activated, it drives the telescopic rod to extend and retract, which in turn drives the balance arm to rise and fall, thus automatically raising and lowering the lifting arms. When the buffer plate rises and falls, it drives the slider to move, increasing friction and improving stability. The rubber layer and anti-slip particles enhance stability and anti-slip effect, making the guide roller more stable during the lifting process. The anti-compression layer and reinforcing layer increase the support strength of the connecting rod, making it less prone to deformation and bending. The support shaft drives the inner ring of the bearing to rotate, and the support shaft supports the positioning shaft at the other end of the guide roller. The third flange has the same function as the first flange and is connected to the two second flanges respectively. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0032] Figure 3 This is a schematic diagram of the positioning bracket structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the rubber layer structure of this utility model.

[0034] In the diagram, 1. Air-jet loom body; 2. Drive shaft; 3. Mounting shaft; 4. First flange; 5. Second flange; 6. Bolt; 7. Positioning shaft; 8. Guide roller; 9. Positioning bracket; 10. Lifting arm; 11. Connecting rod; 12. Cylinder; 13. Telescopic rod; 14. Balance arm; 15. Buffer plate; 16. Slider; 17. Slide groove; 18. Rubber layer; 19. Compression-resistant layer; 20. Reinforcing layer; 21. Bearing; 22. Support shaft; 23. Third flange. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] Reference Figure 1-4A guide roller replacement device for an air-jet loom includes an air-jet loom body 1. A drive shaft 2 is disposed on the inner wall of the air-jet loom body 1. One end of the drive shaft 2 is fixedly connected to a mounting shaft 3. One end of the mounting shaft 3 is fixedly connected to a first flange 4. A second flange 5 is movably mounted on one end of the first flange 4. Bolts 6 are threaded into the interior of the second flange 5. A positioning shaft 7 is fixedly connected to one side of the second flange 5. A guide roller 8 is disposed at one end of the positioning shaft 7. A positioning bracket 9 is disposed at the bottom of the guide roller 8. A lifting arm 10 is fixedly connected to the bottom of the positioning bracket 9. When the operator replaces the guide roller 8, the lifting arm 10 is raised, thereby raising the positioning bracket 9. The positioning bracket 9 corresponds to the positioning shaft 7, its width is corresponding to the positioning shaft 7, and it is inserted into the second flange. The gap between the guide roller 8 and the positioning bracket 9 is such that after the positioning bracket 9 supports the positioning shaft 7, the bolt 6 is loosened and the first flange 4 and the second flange 5 are separated. After the bolt 6 at the other end is removed, the lifting arm 10 descends and the guide roller 8 is removed. The positioning shaft 7 of the other guide roller 8 is placed on the positioning bracket 9. The positioning bracket 9 rises to a precise height. After rising, the second flange 5 and the first flange 4 can be accurately aligned. When fixing the bolt 6, there is no need to manually lift the guide roller 8, making replacement more labor-saving and convenient. One end of the lifting arm 10 is fixedly connected to the connecting rod 11. There are two lifting arms 10, which are connected by the connecting rod 11. The two lifting arms 10 rise and fall synchronously. The bottom of the inner wall of the air-jet loom body 1 is fixedly connected to the cylinder 12. The output end of the 2 is fixedly connected to a telescopic rod 13. After the cylinder 12 is started, it drives the telescopic rod 13 to extend and retract. The top of the telescopic rod 13 is fixedly connected to a balance arm 14. One end of the balance arm 14 is fixedly connected to the lifting arm 10. The telescopic rod 13 drives the balance arm 14 to rise and fall, thereby causing the lifting arm 10 to rise and fall automatically. The other end of the balance arm 14 is fixedly connected to a buffer plate 15. A slider 16 is fixedly connected to one side of the buffer plate 15. When the buffer plate 15 rises and falls, it drives the slider 16 to move. The inner wall of the air-jet loom body 1 is provided with a groove 17. The inner wall of the groove 17 is slidably connected to the slider 16. The sliding of the slider 16 increases friction and improves stability. The top of the positioning bracket 9 is fixedly connected to a rubber layer 18. The outer surface of the rubber layer 18 is fixedly connected to anti-slip particles. 18 and anti-slip particles increase stability and anti-slip effect, making the guide roller 8 more stable during the lifting process. The outer surface of the connecting rod 11 is fixedly connected to the anti-compression layer 19, and the outer surface of the anti-compression layer 19 is fixedly connected to the reinforcement layer 20. The anti-compression layer 19 and the reinforcement layer 20 increase the support strength of the connecting rod 11 and are not prone to deformation and bending. A bearing 21 is fixedly connected to one side of the inner wall of the air-jet loom body 1. A support shaft 22 is fixedly connected to the inner wall of the bearing 21. The support shaft 22 drives the inner ring of the bearing 21 to rotate. The support shaft 22 supports the positioning shaft 7 at the other end of the guide roller 8. A third flange 23 is fixedly connected to one end of the support shaft 22. There are two second flanges 5. The third flange 23 has the same function as the first flange 4 and is connected to the two second flanges 5 respectively.

[0037] In this invention, the coordinated arrangement of the air-jet loom body 1, drive shaft 2, mounting shaft 3, first flange 4, second flange 5, bolt 6, positioning shaft 7, guide roller 8, positioning bracket 9, and lifting arm 10 allows the device to be used such that when the operator replaces the guide roller 8, the lifting arm 10 rises, thereby raising the positioning bracket 9. The positioning bracket 9 corresponds to the positioning shaft 7, its width corresponding to the positioning shaft 7, and is inserted precisely into the gap between the second flange 5 and the guide roller 8. After the positioning bracket 9 supports the positioning shaft 7, the bolt 6 is loosened, separating the first flange 4 and the second flange 5. After removing the bolt 6 at the other end, the lifting arm 10 descends, and the guide roller 8 is removed. The positioning shaft 7 of the other guide roller 8 is then placed on the positioning bracket 9. The positioning bracket 9 rises precisely to the required height, ensuring accurate alignment between the second flange 5 and the first flange 4. When fixing the bolt 6, there is no need to manually lift the guide roller 8, making replacement more labor-saving and convenient. The device is further enhanced by the connecting rod 11, cylinder 12, and telescopic rod. The arrangement of the balance arm 13, buffer plate 14, slider 15, slide 16, groove 17, rubber layer 18, pressure-resistant layer 19, reinforcement layer 20, bearing 21, support shaft 22, and third flange 23 allows the two lifting arms 10 to be connected by the connecting rod 11 during use, and the two lifting arms 10 to rise and fall synchronously. After the cylinder 12 is started, it drives the telescopic rod 13 to extend and retract, and the telescopic rod 13 drives the balance arm 14 to rise and fall, thereby causing the lifting arms 10 to rise and fall automatically. When the buffer plate 15 rises and falls, it drives the slider 16 to move. The sliding of the slider 16 increases friction and improves stability. The rubber layer 18 and anti-slip particles increase stability and anti-slip effect, making the guide roller 8 more stable during the lifting process. The pressure-resistant layer 19 and reinforcement layer 20 increase the support strength of the connecting rod 11, making it less prone to deformation and bending. The support shaft 22 drives the inner ring of the bearing 21 to rotate. The support shaft 22 supports the positioning shaft 7 at the other end of the guide roller 8. The third flange 23 has the same function as the first flange 4 and is connected to the two second flanges 5 respectively.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A guide roller replacement device of an air-jet loom comprising an air-jet loom body (1), characterized in that: The inner wall of the air-jet loom body (1) is provided with a drive shaft (2), one end of the drive shaft (2) is fixedly connected to an installation shaft (3), one end of the installation shaft (3) is fixedly connected to a first flange (4), one end of the first flange (4) is movably installed with a second flange (5), the second flange (5) is internally threaded with bolts (6), one side of the second flange (5) is fixedly connected to a positioning shaft (7), one end of the positioning shaft (7) is provided with a guide roller (8), the bottom of the guide roller (8) is provided with a positioning bracket (9), and the bottom of the positioning bracket (9) is fixedly connected to a lifting arm (10).

2. The guide roller changing device for an air-jet loom according to claim 1, characterized in that: One end of the lifting arm (10) is fixedly connected to a connecting rod (11), and there are two lifting arms (10).

3. The guide roller changing device for an air-jet loom according to claim 1, characterized in that: A cylinder (12) is fixedly connected to the bottom of the inner wall of the air-jet loom body (1), and a telescopic rod (13) is fixedly connected to the output end of the cylinder (12).

4. The guide roller changing device for an air-jet loom according to claim 3, characterized in that: A balance arm (14) is fixedly connected to the top of the telescopic rod (13), and one end of the balance arm (14) is fixedly connected to the lifting arm (10).

5. The guide roller changing device for an air-jet loom according to claim 4, characterized in that: The other end of the balance arm (14) is fixedly connected to a buffer plate (15), and a slider (16) is fixedly connected to one side of the buffer plate (15).

6. The guide roller changing device for an air-jet loom according to claim 5, characterized in that: The inner wall of the air-jet loom body (1) is provided with a groove (17), and the inner wall of the groove (17) is slidably connected to the slider (16).

7. The guide roller changing device for an air-jet loom according to claim 1, characterized in that: The top of the positioning bracket (9) is fixedly connected to a rubber layer (18), and the outer surface of the rubber layer (18) is fixedly connected to anti-slip particles.

8. The guide roller changing device for an air-jet loom according to claim 2, characterized in that: The outer surface of the connecting rod (11) is fixedly connected to a pressure-resistant layer (19), and the outer surface of the pressure-resistant layer (19) is fixedly connected to a reinforcing layer (20).

9. The guide roller changing device for an air-jet loom according to claim 1, characterized in that: A bearing (21) is fixedly connected to one side of the inner wall of the air-jet loom body (1), and a support shaft (22) is fixedly connected to the inner wall of the bearing (21).

10. A guide roller changing device for an air-jet loom according to claim 9, characterized in that: One end of the support shaft (22) is fixedly connected to a third flange (23), and there are two second flanges (5).

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