A new compact spinning and suction cotton tube

Abstract

The utility model relates to a novel compact spinning suction cotton tube, including the hollow pipe body of conveying airflow, one end of pipe body is connected negative pressure source, the opening of another end of pipe body is suction cotton mouth, along the length direction of pipe body, to the side away from suction cotton mouth, the pipe body is sequentially provided with the first reducing section of the diameter of lumen and the second reducing section of the diameter of lumen that the diameter of lumen of pipe body suddenly changes and forms step surface between first reducing section and second reducing section, step surface is towards second reducing section setting, the utility model discloses through second reducing section, gradually reduce the diameter of lumen from negative pressure source to the direction of suction cotton mouth, to enhance the negative pressure of the position close to suction cotton mouth. In addition, after airflow enters the pipe body from suction cotton mouth, first flows through first reducing section, and the diameter of lumen gradually reduces along with the flow of airflow, that is, the flow velocity of airflow increases to further enhance the negative pressure, to produce stronger suction force and remove impurities.

Description

Technical Field

[0001] This utility model relates to the field of spinning equipment technology, and in particular to a novel compact spinning suction tube. Background Technology

[0002] The suction tube removes short fibers, fly ash, and other impurities generated during the spinning process using negative pressure, preventing impurities from accumulating and adhering to the equipment and yarn, thus improving the uniformity and appearance of the yarn.

[0003] The magnitude of the negative pressure directly affects the suction capacity of the suction tube; insufficient suction results in inadequate removal of impurities. The negative pressure of the suction tube is adjusted directly through a negative pressure device. Since a spinning machine has multiple suction tubes, multiple high-power negative pressure devices are needed to ensure sufficient suction power.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a new type of tightly spun cotton suction tube to improve the negative pressure of the suction tube.

[0006] The technical solution of this utility model is as follows: The novel compact spinning suction tube includes a hollow tube body for conveying airflow; one end of the tube body is connected to a negative pressure source, and the opening at the other end of the tube body is a suction port; along the length of the tube body, towards the side away from the suction port, the tube body is sequentially provided with a first variable diameter section with a gradually decreasing diameter of the tube cavity and a second variable diameter section with a gradually increasing diameter of the tube cavity; between the first variable diameter section and the second variable diameter section, the diameter of the tube cavity of the tube body abruptly changes to form a stepped surface; the stepped surface is positioned towards the second variable diameter section.

[0007] A further technical solution is that the cotton suction port is flat; the long axis of the cotton suction port is set perpendicular to the yarn.

[0008] A further technical solution is to create a notch on the outer surface of the pipe body between the first and second diameter-changing sections.

[0009] A further technical solution is that the inner wall of one side of the tube cavity is a straight inner wall parallel to the axis of the tube.

[0010] A further technical solution is to set a limiting protrusion along the axis of the pipe body on the outer surface of the pipe body.

[0011] A further technical solution involves installing a flexible joint on the spinning machine; connecting the tube to the flexible joint; and increasing the diameter of the flexible joint around its axis to form a raised ring.

[0012] A further technical solution is to provide a straight section on the side of the flexible joint closest to the pipe body; the straight section is fitted onto the pipe body.

[0013] A further technical solution involves setting a third protrusion around the axis of the flexible joint and on the surface of the flexible joint near one end of the spinning machine.

[0014] A further technical solution is to provide a first protrusion around the axis of the pipe body on the outer surface of the pipe body; the first protrusion contacts the end face of the flexible joint.

[0015] A further technical solution is to provide a second protrusion around the axis of the pipe body on the outer surface of the pipe body; the second protrusion is located in the gap between the flexible joint and the pipe body.

[0016] The beneficial technical effects of this utility model are as follows: (1) The novel compact spinning suction tube of this utility model is installed on a spinning machine and connected to a negative pressure source to remove impurities such as short fibers and fly waste generated during spinning. Along the axis of the suction tube, the diameter of the tube cavity gradually changes to form a first variable diameter section and a second variable diameter section. First, from the negative pressure source towards the suction port, the tube cavity diameter gradually decreases as it passes through the second variable diameter section. According to Bernoulli's principle, the same airflow velocity increases when passing through a smaller diameter tube cavity, thereby enhancing the negative pressure near the suction port. In addition, after the airflow enters the tube body from the suction port, it first flows through the first variable diameter section. As the airflow flows, the tube cavity diameter gradually decreases, that is, the airflow velocity increases, further enhancing the negative pressure to generate stronger suction to remove impurities. A stepped surface facing the second variable diameter section is provided between the first and second variable diameter sections. The airflow suddenly enters the larger diameter tube from the first diameter-changing section along the stepped surface, forming an annular vortex at the tube position on the stepped surface. The annular vortex shakes the short fibers, fly ash, and other impurities that are sucked in, allowing the impurities to be evenly dispersed and enter the second diameter-changing section, avoiding the agglomeration of impurities and reducing the risk of blockage of the new compact spinning suction tube.

[0017] (2) Further, a notch is made on the outer surface of the tube between the first and second diameter sections. The notch balances the wall thickness of the tube in the first and second diameter sections, preventing shrinkage and deformation of the tube when the mold is used to produce the new type of compact cotton suction tube.

[0018] (3) Further, the inner wall of one side of the tube cavity is a straight inner wall parallel to the axis of the tube. The change in diameter of the tube cavity in the first and second diameter-changing sections is achieved by the inclination of the inner wall in other directions. The airflow flowing along the straight inner wall section can form a stable flow channel locally in the tube cavity. This avoids the circumferential inner wall of the tube cavity being set with inclination, which would lead to airflow chaos and reduced suction. Attached Figure Description

[0019] Figure 1A three-dimensional structural schematic diagram of a novel compact spinning suction tube according to an embodiment of the present disclosure, after being installed on a spinning machine, is shown.

[0020] Figure 2 A cross-sectional view of a novel compact spinning absorbent tube according to an embodiment of the present disclosure is shown.

[0021] Figure 3 An exploded view of a novel compact spinning absorbent tube according to an embodiment of the present disclosure is shown.

[0022] Marked in the attached diagram: 1. Spinning machine; 2. Flexible joint; 21. Convex ring; 22. Straight section; 23. Third protrusion; 3. Tube body; 31. Inlet; 32. Notch; 4. First diameter changing section; 5. Stepped surface; 6. Second diameter changing section; 7. Constant diameter section; 71. Limiting protrusion; 72. First protrusion; 73. Second protrusion. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0024] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are 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.

[0025] Figure 1 A three-dimensional structural schematic diagram of a novel compact spinning suction tube according to an embodiment of the present disclosure, after being installed on a spinning machine, is shown. Figure 2 A cross-sectional view of a novel compact spun cotton suction tube according to an embodiment of this disclosure is shown. Please refer to... Figure 1 and Figure 2The novel compact spinning suction tube includes a hollow tube body 3 for conveying airflow. One end of the tube body 3 is connected to a negative pressure source, which can be a fan. The opening at the other end of the tube body 3 is a suction port 31, which is oriented towards the yarn to remove impurities such as short fibers and fly waste generated during spinning. Along the length of the tube body 3, towards the side away from the suction port 31, the tube body 3 is sequentially provided with a first diameter-reducing section 4 with a gradually decreasing diameter and a second diameter-reducing section 6 with a gradually increasing diameter. First, from the negative pressure source towards the suction port 31, the diameter of the tube body 3 gradually decreases as it passes through the second diameter-reducing section 6. According to Bernoulli's principle, the same airflow increases in velocity when passing through a smaller diameter tube, thus enhancing the negative pressure near the suction port 31. Furthermore, after the airflow enters the tube body 3 from the suction port 31, it first flows through the first diameter-reducing section 4. As the airflow continues, the diameter of the tube gradually decreases, meaning the airflow velocity increases, further enhancing the negative pressure to generate stronger suction to remove impurities. Between the first diameter-changing section 4 and the second diameter-changing section 6, the diameter of the tube body 3 abruptly changes to form a stepped surface 5. The stepped surface 5 faces the second diameter-changing section 6. When the airflow suddenly enters the larger diameter tube cavity from the first diameter-changing section 4 along the stepped surface 5, an annular vortex is formed at the tube cavity location of the stepped surface 5. The annular vortex shakes the short fibers, fly ash, and other impurities sucked in, allowing the impurities to be evenly dispersed and enter the second diameter-changing section 6, preventing impurities from clumping together and reducing the risk of blockage in the new compact spinning suction tube.

[0026] Figure 3 An exploded view of a novel compact spinning absorbent tube according to an embodiment of this disclosure is shown. Please refer to... Figure 2 and Figure 3 The suction port 31 is flat. The long axis of the suction port 31 is perpendicular to the yarn. This extends the working range of the suction port 31 to both sides of the yarn, allowing it to remove short fibers, fly ash, and other impurities from the yarn over a wider area, thus improving the quality of the yarn.

[0027] Preferably, a notch 32 is formed on the outer surface of the tube body 3 between the first diameter-changing section 4 and the second diameter-changing section 6. The notch 32 balances the wall thickness of the tube body 3 inside the first diameter-changing section 4 and the second diameter-changing section 6, preventing the tube body 3 from shrinking and deforming when the mold is used to produce the new type of compact cotton suction tube.

[0028] More preferably, the inner wall of one side of the cavity of the tube body 3 is a straight inner wall parallel to the axis of the tube body 3. The change in diameter of the cavity within the first diameter-changing section 4 and the second diameter-changing section 6 is achieved by the inclination of the inner wall in other directions. The airflow flowing along the straight inner wall section can form a stable flow channel locally within the cavity. This avoids the circumferential inner wall of the cavity being inclined, which would lead to airflow chaos and reduced suction.

[0029] Please refer to Figure 1 and Figure 2A flexible connector 2 is installed on the spinning machine 1. A tube 3 is connected to the flexible connector 2. Utilizing the elastic deformation of the flexible connector 2, the orientation of the tube 3 can be flexibly adjusted to ensure that the cotton inlet 31 faces the yarn. Around the axis of the flexible connector 2, the diameter of the flexible connector 2 increases, forming a convex ring 21. When it is necessary to bend the flexible connector 2 to adjust the orientation of the tube 3, deformation can be achieved through radial contraction and axial expansion compensation of the convex ring 21, improving the flexibility of the flexible connector 2.

[0030] Preferably, a straight section 22 is provided on the side of the flexible joint 2 closest to the pipe body 3. The straight section 22 is fitted onto the pipe body 3. Correspondingly, on the side of the pipe body 3 away from the second diameter-changing section 6, a constant diameter section 7 is provided with the same diameter of the pipe cavity. A straight section is fitted onto the constant diameter section 7, connecting the flexible joint 2 and the pipe body 3.

[0031] Please refer to Figure 1 and Figure 2 Around the axis of the flexible joint 2, on the surface of the flexible joint 2 near one end of the spinning machine 1, a third protrusion 23 is provided; two of the third protrusions 23 are provided to clamp and engage the flexible joint 2 on the spinning machine 1.

[0032] Preferably, a limiting protrusion 71 is provided on the outer surface of the tube body 3 along the axis of the tube body 3. In some embodiments, a fixing structure (not shown in the figure) is provided on the spinning machine 1 to sleeve the connecting tube body 3, thereby enhancing the stability of the connection between the tube body 3 and the spinning machine 1. A slot (not shown in the figure) can be provided on the fixing structure for the limiting protrusion 71 to engage, thereby restricting the rotation of the tube body 3 sleeved by the fixing structure.

[0033] Please refer to Figure 1 and Figure 2 A first protrusion 72 is provided on the outer surface of the tube body 3 around its axis. The first protrusion 72 contacts the end face of the flexible joint 2, positioning the tube body 3 and the flexible joint 2.

[0034] Preferably, a second protrusion 73 is provided on the outer surface of the pipe body 3 around its axis. The second protrusion 73 is disposed within the gap between the flexible joint 2 and the pipe body 3. The second protrusion 73 fills the gap between the flexible joint 2 and the pipe body 3, enhancing the sealing performance between the pipe body 3 and the flexible joint 2, preventing airflow leakage and reducing negative pressure.

[0035] The specific workflow of this utility model is as follows: When removing short fibers, fly ash, and other impurities from the yarn, the negative pressure source is activated, driving the suction port 31 to draw in airflow. The airflow moves along the first variable diameter section 4, the second variable diameter section 6, the equal diameter section 7, and the flexible connector 2. The equal diameter section 7 is closer to the suction port 31. Along the second variable diameter section 6, the diameter of the tube 3 gradually decreases to increase the airflow velocity and enhance the negative pressure. The airflow drawn into the suction port 31 first flows along the first variable diameter section 4 to the second variable diameter section 6. The diameter of the tube along the first variable diameter section 4 gradually decreases, increasing the airflow velocity and facilitating the suction port 31 to draw in short fibers, fly ash, and other impurities. Then, the airflow flows into the second variable diameter section 6 along the stepped surface 5, where it forms a ring-shaped vortex that pulls and disperses the impurities, ensuring they are evenly dispersed before entering the second variable diameter section 6. The impurities flow along the second variable diameter section 6, during which the negative pressure gradually decreases until the impurities flow into the equal diameter section 7. Finally, the impurities flow away along the flexible connector 2.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A novel compact spinning suction tube, installed on a spinning machine, characterized in that, The novel compact spinning suction tube includes a hollow tube body for conveying airflow; one end of the tube body is connected to a negative pressure source, and the opening at the other end of the tube body is a suction port; along the length of the tube body, towards the side away from the suction port, the tube body is sequentially provided with a first variable diameter section with a gradually decreasing diameter of the lumen and a second variable diameter section with a gradually increasing diameter of the lumen; between the first variable diameter section and the second variable diameter section, the diameter of the lumen of the tube body abruptly changes to form a stepped surface; the stepped surface is oriented towards the second variable diameter section.

2. The novel compact spinning absorbent tube as described in claim 1, characterized in that: The cotton suction port is flat; the long axis of the cotton suction port is perpendicular to the yarn.

3. The novel compact spinning absorbent tube as described in claim 1, characterized in that: A notch is made on the outer surface of the tube body between the first diameter-changing section and the second diameter-changing section.

4. The novel compact spinning absorbent tube as described in claim 1, characterized in that: The inner wall of one side of the tube cavity is a straight inner wall parallel to the axis of the tube.

5. The novel compact spinning absorbent tube as described in claim 1, characterized in that: A limiting protrusion is provided on the outer surface of the tube along its axis.

6. The novel compact spinning absorbent tube as described in claim 1, characterized in that: The spinning machine is equipped with a flexible joint; the tube body is connected to the flexible joint; around the axis of the flexible joint, the diameter of the flexible joint increases to form a convex ring.

7. The novel compact spinning absorbent tube as described in claim 6, characterized in that: The flexible joint has a straight section on the side near the pipe body; the straight section is sleeved on the pipe body.

8. The novel compact spinning absorbent tube as described in claim 7, characterized in that: A third protrusion is provided on the surface of the flexible joint near one end of the spinning machine, about the axis of the flexible joint.

9. The novel compact spinning absorbent tube as described in claim 6, characterized in that: Around the axis of the tube body, a first protrusion is provided on the outer surface of the tube body; the first protrusion contacts the end face of the flexible joint.

10. The novel compact spinning absorbent tube as described in claim 9, characterized in that: Around the axis of the tube body, a second protrusion is provided on the outer surface of the tube body; the second protrusion is disposed in the gap between the flexible joint and the tube body.

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