Novel compact spinning negative pressure pipe device

Abstract

The invention relates to the technical field of compact spinning, and discloses a novel compact spinning negative pressure pipe device which comprises an airflow sleeve used for being connected with negative pressure equipment, an air pipe is connected to the airflow sleeve, rotating sleeves are rotationally connected to the two ends of the air pipe, fine holes are formed in the surfaces of the rotating sleeves, and flow dividing and balancing assemblies are arranged in the rotating sleeves; the flow dividing and balancing assembly comprises a flow pressing device, a flow equalizing device and a back flushing device. According to the novel compact spinning negative pressure pipe device, through cooperation of the pressure flow device and the flow equalizing device, negative pressure suction force generated by negative pressure equipment can be transmitted to the fine holes of the whole circle through the spherical inner sleeve and the spherical sleeve, and therefore when the rotating sleeve of the whole circle rotates, the fine holes of the whole circle are evenly distributed. The negative pressure suction force of each hole position is basically kept in a balanced state all the time, so that the negative pressure airflow is guided in a balanced mode, the negative pressure stability of the negative pressure pipe in the whole working process is improved, the overall gathering effect of yarn is improved, and the yarn quality of gathering spinning is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of compact spinning, and specifically to a new compact spinning negative pressure tube device. Background Art

[0002] Compact spinning, also known as close spinning, the existing close spinning technology is mainly modified on a ring spinning frame. By adding an agglomeration device before the yarn sliver is twisted, the yarn sliver is agglomerated and then output for twisting after passing through the agglomeration device, so that the yarn sliver is twisted in a parallel and close state, realizing the separation of drafting and agglomeration.

[0003] One implementation of this functional form of the agglomeration device is a negative pressure tube. Multiple agglomeration grooves are opened on the tube wall of the guiding surface of this negative pressure tube, and a mesh ring is sleeved on the corresponding agglomeration groove. Each agglomeration groove corresponds to a yarn. Under the action of negative pressure air flow, after the yarn sliver is output from the front mouth of the front roller, it first passes through the guiding surface of the negative pressure tube, and then is agglomerated on the agglomeration groove while being conveyed by the rotation of the mesh ring. After the yarn is pressed on the driving roller by the output apron on the downstream side of the mesh ring for control, it is then twisted through the spindle and the ring traveler, so that the sliver is agglomerated and rotated, gradually changing from a flat strip shape to a cylindrical shape, and the ends of the fibers are all twisted into the yarn to form a bundle of parallel and closely aggregated yarns.

[0004] In the prior art, there are problems of yarn defects caused by uneven air flow in the traditional negative pressure tube. And if the air pressure flow inside the negative pressure tube is unstable and unbalanced, it is easy to have a poor agglomeration effect on the yarn, or the consistency of the yarn is poor. At the same time, with the foreign yarn on the surface of the yarn being sucked by the negative pressure tube, it is easy to block inside the negative pressure tube, further causing problems of unstable negative pressure conveying of air flow. Therefore, a new compact spinning negative pressure tube device is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] (1) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a new compact spinning negative pressure tube device, which solves the problems that the negative pressure tube in the prior art is unbalanced during the air flow conveying process, easily causes uneven yarn forming quality and poor consistency, and is prone to blockage of foreign yarn on the surface of the yarn inside.

[0006] (2) Technical Solutions To achieve the above object, the present invention provides the following technical solution: a new compact spinning negative pressure pipe device, including an air flow sleeve for connecting a negative pressure device, a trachea is connected to the air flow sleeve, both ends of the trachea are rotatably connected with rotating sleeves, fine holes are formed on the surface of the rotating sleeves, and a flow dividing and balancing component is arranged inside the rotating sleeves; the flow dividing and balancing component includes a pressure flow device, a flow equalizing device and a backwashing device; the pressure flow device includes a conduit, the bottom of the conduit is communicated with the trachea, the negative pressure acting force generated by the air flow sleeve acts on the inside of the conduit through the trachea, a tapered sleeve is fixedly connected to the inner wall of the conduit, a compression spring is connected to the tapered sleeve, the top of the compression spring is connected with a sliding column, a guide rod is slidably connected inside the sliding column, the guide rod is fixed inside the conduit, a step is arranged inside the conduit, and the top of the sliding column abuts against the step. When the sliding column is subjected to negative pressure suction, it will move downward. After disengaging from the step position, a connecting air flow passage of the conduit is formed.

[0007] Preferably, the flow equalizing device includes a conveying sleeve, one end of the conveying sleeve is communicated with the conduit, the other end of the conveying sleeve is connected with a spherical sleeve, an inner sleeve is arranged inside the spherical sleeve, the structures of the inner sleeve and the spherical sleeve are both hemispherical, and a partition net is connected to the left side of the spherical sleeve.

[0008] Preferably, a rotating bar is arranged inside the rotating sleeve, the surface of the rotating bar abuts against the partition net, and the negative pressure air flow passes through the gap between the inner sleeve and the spherical sleeve and penetrates through the partition net, so as to evenly act the negative pressure suction force on the fine holes in the whole circle.

[0009] Preferably, the backwashing device includes a pressure rod, a hollow sleeve is connected to the end face of the pressure rod, the hollow sleeve is slidably connected inside the inner sleeve, a sleeve body is communicated with the surface of the hollow sleeve, the sleeve body is slidably connected with the inner sleeve, a cap is connected to the end face of the rotating sleeve, and the pressure rod is slidably connected to the cap.

[0010] Preferably, an air flow net is installed on the sleeve body, the air flow net is inclined, a sliding sleeve is connected to the sleeve body, the sliding sleeve is slidably connected inside the trachea, a partition plate is slidably connected inside the sliding sleeve, and the partition plate is connected to the inner sleeve.

[0011] Preferably, a connecting spring is connected to one side of the sleeve body, and the left end of the connecting spring is connected to the cap.

[0012] Preferably, the diversion and equalization components are provided with two groups, and the two groups of diversion and equalization components are symmetrically distributed with the center line of the air pipe as the symmetry axis; it also includes a control device, which is used to control the internal airflow entering the two groups of diversion and equalization components; the control device includes a ball seat, which is rotatably connected to the inside of the airflow sleeve, and the surface of the ball seat is symmetrically provided with grooves, the bottom of the ball seat is connected to a connecting shaft, the surface of the connecting shaft is connected to an adjusting worm gear, the surface of the adjusting worm gear is engaged with an engaging rod, the engaging rod is fixedly connected to an adjusting rod, and the adjusting rod is rotatably connected to the surface of the airflow sleeve.

[0013] Preferably, the upper surface of the airflow sleeve is rotatably connected to a bracket, the bracket is rotatably connected to a support shaft, both ends of the support shaft are connected to pressure wheels, and the surface of the pressure wheel abuts against the rotating sleeve.

[0014] Preferably, a full circle of arc-shaped grooves for the yarn to pass through is opened on the surface of the rotating sleeve, and the fine holes are located inside the arc-shaped grooves.

[0015] (3) Beneficial effects Compared with the prior art, the present invention provides a new concentrated spinning negative pressure tube device with the following beneficial effects: 1. The new concentrated spinning negative pressure tube device, through the cooperation of the pressure flow device and the flow equalizing device, can transmit the negative pressure suction generated by the negative pressure equipment to the fine holes of the entire circle through the spherical inner sleeve and the spherical sleeve respectively, so that the negative pressure suction of each hole position is basically in a balanced state at all times when the rotating sleeve of the entire circle rotates, thereby evenly guiding the negative pressure airflow, improving the negative pressure stability of the negative pressure tube during the entire operation, improving the overall gathering effect of the yarn, and improving the yarn quality of concentrated spinning.

[0016] 2. The new concentrated spinning negative pressure tube device, through the backflushing device, can use the reverse negative pressure suction force to filter the miscellaneous threads sucked into the negative pressure tube and automatically backflush, thereby achieving automatic and effective cleaning of the interior, preventing the negative pressure tube from being blocked due to long-term use, and further improving the overall operating stability of the negative pressure tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a new concentrated spinning negative pressure tube device proposed by the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional structure of a new concentrated spinning negative pressure tube device proposed by the present invention; Figure 3 This is a schematic diagram of the structure of a flow-dividing and balancing component of a new concentrated spinning negative pressure tube device proposed by the present invention; Figure 4 This is a partial structural diagram of a flow equalizing device of a new concentrated spinning negative pressure tube device proposed by the present invention; Figure 5 Schematic cross-sectional connection structure of the sliding sleeve of a new type of compact spinning negative pressure tube device proposed by the present invention; Figure 6 Schematic structure diagram of the control device of a new type of compact spinning negative pressure tube device proposed by the present invention; Figure 7 Schematic connection structure diagram of the rotating sleeve of a new type of compact spinning negative pressure tube device proposed by the present invention.

[0018] In the figure: 1. Air flow sleeve; 2. Bracket; 3. Support shaft; 4. Pressure wheel; 5. Air pipe; 6. Flow splitting and balancing assembly; 601. Tapered sleeve; 602. Compression spring; 603. Slide post; 604. Guide rod; 605. Guide tube; 606. Delivery sleeve; 607. Spherical sleeve; 608. Inner sleeve; 609. Partition net; 610. Rotating bar; 611. Pressure bar; 612. Hollow sleeve; 613. Connecting spring; 614. Cap; 615. Partition board; 616. Sleeve body; 617. Sliding sleeve; 618. Air flow net; 619. Connecting shaft; 620. Adjusting worm gear; 621. Adjusting rod; 622. Meshing rod; 623. Ball seat; 7. Fine hole; 8. Rotating sleeve. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-7 , a new type of compact spinning negative pressure tube device, including an air flow sleeve 1 for connecting a negative pressure device. An air pipe 5 is connected to the air flow sleeve 1. Rotating sleeves 8 are rotatably connected to both ends of the air pipe 5. Fine holes 7 are formed on the surface of the rotating sleeve 8, and a flow splitting and balancing assembly 6 is arranged inside the rotating sleeve 8.

[0021] In this embodiment, the flow diversion and balancing assembly 6 includes a pressure flow device, a flow balancing device and a recoil device; the pressure flow device includes a conduit 605, the bottom of which is connected to the trachea 5, and the negative pressure force generated by the airflow sleeve 1 acts on the inside of the conduit 605 through the trachea 5. A cone sleeve 601 is fixedly connected to the inner wall of the conduit 605, and a compression spring 602 is connected to the cone sleeve 601. The top of the compression spring 602 is connected to a sliding column 603, and a guide rod 604 is slidably connected to the sliding column 603. The guide rod 604 is fixed to the inside of the conduit 605, and a step is provided inside the conduit 605, and the top of the sliding column 603 abuts against the step. The sliding column 603 will move downward under the suction of negative pressure, and after leaving the step position, a connecting airflow path of the conduit 605 is formed. By utilizing the abutment method of the sliding column 603, the negative pressure suction force can directly act on the sliding column 603, controlling it to move downward, and then allowing the negative pressure airflow to flow from the outer gap of the sliding column 603, achieving balanced diversion and avoiding airflow instability caused by excessively large pipelines.

[0022] Furthermore, the flow equalization device includes a conveying sleeve 606, one end of which is connected to the conduit 605, and the other end of which is connected to a spherical sleeve 607. An inner sleeve 608 is provided inside the spherical sleeve 607. The structures of the inner sleeve 608 and the spherical sleeve 607 are both hemispherical. A partition 609 is connected to the left side of the spherical sleeve 607. A rotating bar 610 is provided inside the rotating sleeve 8. As the rotating sleeve 8 rotates, it drives the multiple rotating bars 610 inside to rotate synchronously. The rotating sleeve 8 is installed in conjunction with the entire processing equipment. Its power source is connected to the pressure wheel 4 through transmission. The connection between the pressure wheel 4 and the rotating sleeve 8 drives the rotation of the rotating sleeve 8. Therefore, the rotating bars 610 will clean the stray wires on the partition 609, avoiding the negative pressure imbalance caused by blockage. The surface of the rotating strip 610 abuts against the screen 609. The negative pressure airflow passes through the gap between the inner sleeve 608 and the spherical sleeve 607 and through the screen 609, applying a uniform negative pressure suction force to the entire circle of pores 7. The negative pressure suction force passes through the gap outside the slide post 603 and then enters the interior of the horizontal conveying sleeve 606. The negative pressure airflow generated by the spherical inner sleeve 608 and spherical sleeve 607 acts evenly on the surfaces of the inner sleeve 608 and spherical sleeve 607, achieving a uniform distribution. Finally, it passes through the screen 609 and acts on the entire circle of pores 7. The surface of the yarn is now subjected to the negative pressure suction force generated by the pores 7, achieving a concentrated effect. Because the gap between the inner sleeve 608 and the outer sleeve 607 forms an arc-shaped flow area, the negative pressure airflow flows very evenly across the surface of the inner sleeve 608, avoiding the uneven negative pressure flow that occurs in tubular structures. The overall arc-shaped surface guides the airflow and ensures uniform negative pressure distribution.

[0023] Furthermore, the recoil device includes a pressure rod 611. The end face of the pressure rod 611 is connected with a hollow sleeve 612. The hollow sleeve 612 is slidably connected inside the inner sleeve 608. The surface of the hollow sleeve 612 communicates with a sleeve body 616. The sleeve body 616 is slidably connected with the inner sleeve 608. The end face of the rotating sleeve 8 is connected with a cap 614. The pressure rod 611 is slidably connected on the cap 614. In order to prevent excessive accumulation of miscellaneous yarn at the position of the separator net 609 due to long-term accumulation, a recoil device is provided to perform recoil cleaning on the internal miscellaneous yarn. The specific process is that the operator needs to press the pressure rod 611 to control the lateral movement of the hollow sleeve 612, thereby driving the hollow sleeve 612 to abut against the position of the conveying sleeve 606. Therefore, at this time, the negative pressure air flow will not enter from the gap between the inner sleeve 608 and the spherical sleeve 607, but will enter from the position of the hollow sleeve 612, then enter the inside of the sleeve body 616, and then pass through the connecting pipeline, pass through the air flow net 618, and enter the left side position of the separator net 609 to achieve reverse suction, and the miscellaneous yarn will adhere to the surface of the air flow net 618.

[0024] In addition, an air flow net 618 is installed on the sleeve body 616. The air flow net 618 is inclined. A sliding sleeve 617 is connected to the sleeve body 616. The sliding sleeve 617 is slidably connected inside the air pipe 5. A partition plate 615 is slidably connected inside the sliding sleeve 617. The partition plate 615 is connected with the inner sleeve 608. A connecting spring 613 is connected to one side of the sleeve body 616. The left end of the connecting spring 613 is connected with the cap 614. When the pressure rod 611 is released, the contraction spring of the connecting spring 613 will automatically control the reset of the pressure rod 611, so that the negative pressure air flow will re-aggregate in the original direction. After the sleeve body 616 is reset, at this time, the partition plate 615 will directly block the air flow, so that the air flow will only act on the position of the fine holes 7. As the air flow net 618 is reset, at this time, the broken yarn adsorbed on the inclined air flow net 618 will enter the inside of the rotating sleeve 8 along the sliding of the inclined surface for temporary accumulation. After that, with the shutdown of the equipment, the cap 614 can be rotated and opened to discharge and clean the impurities.

[0025] In addition, there are two sets of shunt balancing components 6, and the two sets of shunt balancing components 6 are symmetrically distributed with the center line of the air pipe 5 as the axis of symmetry. There is also a control device for controlling the internal air flow entering the two sets of shunt balancing components 6. The control device includes a ball seat 623 which is rotatably connected inside the air flow sleeve 1. The surface of the ball seat 623 is symmetrically provided with grooves. The bottom of the ball seat 623 is connected with a connecting shaft 619. The surface of the connecting shaft 619 is connected with an adjusting worm gear 620. An engaging rod 622 is engaged with the surface of the adjusting worm gear 620. The engaging rod 622 is fixedly connected with an adjusting rod 621. The adjusting rod 621 is rotatably connected to the surface of the air flow sleeve 1. Since the air flow conveyed by the negative pressure device may be unstable or non-constant, this will result in inconsistent air pressures entering the two shunt balancing components 6. Therefore, a control device is provided. By the operator rotating the adjusting rod 621, the rotation of the adjusting worm gear 620 will be driven. Then, by using the transmission method of the worm and worm gear, the ball seat 623 is driven to rotate on the flow path of the air flow sleeve 1, so as to control the slope angles on both sides of the ball seat 623, thereby regulating the branch balance of the two air flows.

[0026] It should be noted that a bracket 2 is rotatably connected to the upper surface of the air flow sleeve 1. A support shaft 3 is rotatably connected to the bracket 2. Both ends of the support shaft 3 are connected with pressing wheels 4. The surface of the pressing wheels 4 abuts against the rotating sleeve 8. Since the spun yarn is interspersed between the pressing wheels 4 and the rotating sleeve 8, the positioning and gathering functions of the spun yarn can be realized by the rotation of the two pressing wheels 4 and the rotating sleeve 8. The surface of the rotating sleeve 8 is provided with a whole-circle arc-shaped groove for the spun yarn to pass through. The fine holes 7 are located inside the arc-shaped groove. By providing the arc-shaped groove, the spun yarn can be restricted from moving horizontally on the surface of the rotating sleeve 8 and can only move in the vertical direction for gathering.

[0027] Working principle: First, the entire negative pressure tube is installed on the compact spinning equipment. The driving wheel of the compact spinning equipment is in contact with the rotating sleeve 8. Then, when the driving wheel rotates, it will drive the rotation of the rotating sleeve 8. The left end opening of the air flow sleeve 1 is connected to the negative pressure equipment in a cooperative manner. After that, the negative pressure suction generated by the negative pressure equipment will pass through the air flow sleeve 1 and act inside the air tube 5. Then, the negative pressure air flow will enter from the position of the conduit 605. Since the sliding column 603 is in contact with the step of the conduit 605 at this time, the negative pressure suction will suck the sliding column 603 downward, thereby squeezing the compression spring 602. So at this time, the sliding column 603 disengages from the step position, and the negative pressure suction will pass through the peripheral gap of the sliding column 603 and then enter the interior of the horizontal conveying sleeve 606. Using the spherical inner sleeve 608 and the spherical sleeve 607, the generated negative pressure air flow will evenly act on the surfaces of the inner sleeve 608 and the spherical sleeve 607 to achieve uniform distribution. Finally, it passes through the partition net 609 and acts on the entire circle of fine holes 7. So at this time, the surface of the spun yarn is subjected to the negative pressure suction generated by the fine holes 7, and the overall effect of agglomeration is achieved. The broken yarns and foreign yarns on the surface of the spun yarn will enter the position of the partition net 609 from the position of the fine holes 7 due to the negative pressure suction. As the rotating sleeve 8 rotates, it will drive the synchronous rotation of multiple rotating bars 610 inside. So the rotating bars 610 will clean the foreign yarns on the partition net 609 to avoid the situation of negative pressure imbalance caused by blockage. In order to prevent excessive accumulation of foreign yarns at the position of the partition net 609 over a long time, a backwashing device is set up to backwash and clean the internal foreign yarns. The specific process is as follows: The operator needs to press the pressure rod 611 to control the movement of the hollow sleeve 612, and then drive the hollow sleeve 612 to contact the conveying sleeve 606. So at this time, the negative pressure air flow will not enter from the gap between the inner sleeve 608 and the spherical sleeve 607. Instead, it will enter from the position of the hollow sleeve 612, then enter the interior of the sleeve body 616, and then pass through the connecting pipeline, pass through the air flow net 618, and enter the left side position of the partition net 609 to achieve reverse suction. The movement of the sleeve body 616 will drive the synchronous horizontal movement of the sliding sleeve 617. Then, the negative pressure suction is switched from the right side of the partition net 609 to the left side of the partition net 609 to reverse suck the impurities located at the position of the partition net 609. Then the foreign yarns will adhere to the surface of the air flow net 618. After that, when the pressure rod 611 is released, the contraction spring of the connecting spring 613 will automatically control the reset of the pressure rod 611, so that the negative pressure air flow will re-aggregate in the original direction. After the sleeve body 616 is reset, at this time, the partition plate 615 will directly block the air flow, so that the air flow will only act on the position of the fine holes 7. As the air flow net 618 is reset, the broken yarns adsorbed on the inclined surface of the air flow net 618 will enter the interior of the rotating sleeve 8 along the sliding of the inclined surface for temporary storage. Then, with the shutdown of the equipment, the cover 614 can be rotated and opened to discharge and clean the impurities, thereby ensuring that the entire path of the negative pressure air flow will not be blocked due to long-term adsorption, and improving the overall agglomeration stability of the negative pressure tube for the yarns.

[0028] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. A new negative pressure tube device for compact spinning, characterized in that, Comprising: An air flow sleeve (1) for connecting a negative pressure device. A trachea (5) is connected to the air flow sleeve (1). Rotating sleeves (8) are rotatably connected to both ends of the trachea (5). Fine holes (7) are formed on the surface of the rotating sleeves (8). A flow splitting and balancing assembly (6) is arranged inside the rotating sleeves (8); The flow splitting and balancing assembly (6) includes a pressure flow device, a flow equalizing device, and a backwashing device; The flow equalizing device is used to evenly distribute the negative pressure air flow generated by the negative pressure device and act on the rotating sleeve (8) to achieve even agglomeration of the yarn; The pressure flow device includes a conduit (605). The bottom of the conduit (605) is communicated with the trachea (5). The negative pressure acting force generated by the air flow sleeve (1) acts inside the conduit (605) through the trachea (5). A tapered sleeve (601) is fixedly connected to the inner wall of the conduit (605). A compression spring (602) is connected to the tapered sleeve (601). The top of the compression spring (602) is connected to a sliding column (603). A guide rod (604) is slidably connected inside the sliding column (603). The guide rod (604) is fixed inside the conduit (605). There is a step inside the conduit (605), and the top of the sliding column (603) abuts against the step. When the sliding column (603) is subjected to negative pressure suction, it will move downward. After disengaging from the step position, a connecting air flow passage of the conduit (605) is formed; The flow equalizing device includes a conveying sleeve (606). One end of the conveying sleeve (606) is communicated with the conduit (605). The other end of the conveying sleeve (606) is connected to a spherical sleeve (607). An inner sleeve (608) is arranged inside the spherical sleeve (607).

2. The novel negative pressure tube device for compact spinning according to claim 1, wherein: The structures of the inner sleeve (608) and the spherical sleeve (607) are both hemispherical. A partition net (609) is connected to the left side of the spherical sleeve (607). The negative pressure air flow passes through the arc surface formed by the hemispherical inner sleeve (608) and the spherical sleeve (607) to achieve even distribution of the air flow.

3. A novel negative pressure tube device for compact spinning according to claim 2, characterized in that: A rotating bar (610) is arranged inside the rotating sleeve (8). The surface of the rotating bar (610) abuts against the partition net (609). The negative pressure air flow passes through the gap between the inner sleeve (608) and the spherical sleeve (607) and penetrates through the partition net (609) to evenly act the negative pressure suction force on the entire circle of fine holes (7).

4. A new compact spinning negative pressure tube device according to claim 3, characterized in that: The backwashing device includes a pressure rod (611). The end face of the pressure rod (611) is connected to a hollow sleeve (612). The hollow sleeve (612) is slidably connected inside the inner sleeve (608). A sleeve body (616) is communicated with the surface of the hollow sleeve (612). The sleeve body (616) is slidably connected to the inner sleeve (608). A cap (614) is connected to the end face of the rotating sleeve (8). The pressure rod (611) is slidably connected to the cap (614).

5. A new compact spinning negative pressure tube device according to claim 4, characterized in that: An air flow net (618) is installed on the sleeve body (616). The air flow net (618) is inclined. A sliding sleeve (617) is connected to the sleeve body (616). The sliding sleeve (617) is slidably connected to the inside of the air pipe (5). A partition plate (615) is slidably connected to the inside of the sliding sleeve (617). The partition plate (615) is connected to the inner sleeve (608).

6. A new compact spinning negative pressure tube device according to claim 5, characterized in that: A connecting spring (613) is connected to one side of the sleeve body (616). The left end of the connecting spring (613) is connected to the cap (614).

7. A new compact spinning negative pressure tube device according to claim 1, characterized in that: Two sets of flow splitting and balancing components (6) are provided, and the two sets of flow splitting and balancing components (6) are symmetrically distributed with the center line of the air pipe (5) as the axis of symmetry; It further includes a regulating device for regulating the internal air flow entering the two sets of flow splitting and balancing components (6); The regulating device includes a ball seat (623). The ball seat (623) is rotatably connected to the inside of the air flow sleeve (1). Grooves are symmetrically formed on the surface of the ball seat (623). A connecting shaft (619) is connected to the bottom of the ball seat (623). An adjusting worm gear (620) is connected to the surface of the connecting shaft (619). A meshing rod (622) meshes with the surface of the adjusting worm gear (620). An adjusting rod (621) is fixedly connected to the meshing rod (622). The adjusting rod (621) is rotatably connected to the surface of the air flow sleeve (1).

8. A new compact spinning negative pressure tube device according to claim 1, characterized in that: A bracket (2) is rotatably connected to the upper surface of the air flow sleeve (1). A support shaft (3) is rotatably connected to the bracket (2). Pressing wheels (4) are connected to both ends of the support shaft (3). The surface of the pressing wheels (4) abuts against the rotating sleeve (8).

9. A new compact spinning negative pressure tube device according to claim 8, characterized in that: An entire circular arc groove for the spinning thread to pass through is formed on the surface of the rotating sleeve (8). The fine holes (7) are located inside the arc groove.

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