Multivariable control device for high-speed ring spinning ends-break

Abstract

The invention discloses a multivariable control device for high-speed ring spinning end breakage, comprising a front jaw of a spinning frame and a collar arranged below the same, wherein a wire ring is arranged on the collar; a bearing is arranged centrally below the collar, wherein a spindle bar is arranged on the bearing; a tension control cylinder is arranged between the front jaw of the spinning frame and the collar; an annular cavity is arranged at the periphery of the collar, wherein the annular cavity is arranged with an opening, wherein an aerosol generator is arranged in the annular cavity on one side of the opening, wherein an air inlet is arranged outside the annular cavity, wherein an air suction port is arranged in the annular cavity on the other side of the opening, wherein a plurality of air flow ports are arranged on the inner wall of the annular cavity, wherein guide plates are arranged respectively, wherein the air flow ports are arranged at the same height as the wire ring; wherein the tension control cylinder and the annular cavity are arranged horizontally and have the same central axis as the spindle bar. The invention has a simple structure and is convenient to operate, and achieves the beneficial effects of reducing spinning end breakage and saving energy and reducing consumption.

Description

Technical Field

[0001] The invention relates to a regulating device for the force of a ring spinning spinning section, and in particular to a high-speed ring spinning end breakage multivariable control device. Background Art

[0002] After years of development, the speed of ring spinning has been greatly improved with the technological progress of various parts of the spinning machine. However, the spinning speed has not been improved accordingly. One of the important factors is the problem of high-speed spinning end breakage. The main reason for the end breakage of the spinning section is that the centrifugal force generated by the spinning balloon increases exponentially with the increase of the speed. The friction between the wire ring and the steel collar due to the high speed also seriously hinders the increase of the speed. The cohesion between the fibers cannot support the forward movement of the yarn due to the increase of the centrifugal force. To solve the above problems, the technicians intend to make improvements from three aspects: first, limit the size of the spinning section balloon; second, increase the power airflow around the wire ring to promote the movement of the wire ring and cool down the heat generated by the high-speed movement of the wire ring and the ring; finally, add atomized humid gas to the power airflow to increase the cohesion between the fibers, thereby solving the problem of spinning end breakage caused by increasing the spindle speed in the spinning section.

[0003] The patent application was filed by Ritter Machinery Company on August 27, 2018, with the patent number ZL2018800721340. The patent name is "Balloon Control Ring for Ring Spinning", which is a device for controlling a balloon ring. The present invention is different from the present invention in two aspects. First, the present invention introduces a moist airflow to enhance the fiber cohesion and form a moist rotating airflow in the ring to increase the fiber yarn's resistance to breakage. Second, the present invention designs the height and diameter of the balloon ring. According to finite element analysis, the height and diameter of the ring are set, and the size of the balloon is controlled to reduce the tension of the yarn. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a device with a simple structure which can effectively solve the technical problem of a large increase in ends broken due to the increase in speed of high-speed ring spinning.

[0005] In order to solve the above technical problems, the present invention provides a high-speed ring spinning end break multivariable control device, including a front jaw of a spinning machine and a collar arranged below it, a wire ring is arranged on the collar; a bearing is arranged in the center below the collar, a spindle rod is arranged on the bearing; a tension control cylinder is arranged between the front jaw of the spinning machine and the collar; an annular cavity is arranged on the periphery of the collar, the annular cavity is arranged with an opening, an aerosol generator is arranged in the annular cavity on one side of the opening, the aerosol generator is externally provided with an air inlet, an air suction port is arranged in the annular cavity on the other side of the opening, a plurality of air flow ports are arranged on the inner wall of the annular cavity, the air flow ports are respectively provided with guide plates, and the air flow ports are arranged at the same height as the wire ring; the tension control cylinder and the annular cavity are arranged horizontally and have the same central axis as the spindle rod. The provision of a tension control cylinder can solve the technical problem that the spinning section is prone to end breakage due to the increase in spindle speed, which causes the increase in the spinning section air ring and the increase in centrifugal force. The power airflow of the present invention is provided by the suction fan of the flute tube under the spinning frame. When the fan is in operation, the annular cavity is continuously sucked, and the air inlet simultaneously introduces the power airflow. The power airflow is sprayed to the wire ring through the guide plate and the air flow port, which helps the wire ring to operate at high speed along the outline, thereby achieving the purpose of energy saving. The aerosol generator is located at the air inlet end of the annular cavity, atomizing water into water vapor and spraying it to the wire ring in the annular cavity through the air flow, cooling the wire ring and increasing the movement speed. In addition, the hot water vapor will automatically rise along the tension control cylinder, increasing the humidity of the fiber that has not been fully spun, increasing the fiber cohesion, and reducing the spinning end breakage.

[0006] Preferably, the tension control cylinder is provided with a yarn inlet, a curved rib is provided on one side of the yarn inlet, and the tension control cylinder is also provided with a fixed bracket; the fixed bracket is provided with a bracket seat corresponding thereto, and the fixed bracket can be adjusted at any angle along the bracket seat. The bracket seat of the present invention is fixed on the spinning frame, and the fixed bracket is movably connected to the bracket seat, so that the working posture of the tension control cylinder can be adjusted conveniently and quickly. The curved rib and the yarn inlet are provided to facilitate the rapid introduction of the yarn into the tension control cylinder and limit the position, which is easy to operate and saves work time.

[0007] Preferably, the guide plate is set at an angle consistent with the tangent direction of the guide rail. When this technical solution is adopted, the power airflow introduced through the airflow port drives the wire ring to rotate at high speed along the guide rail, and the operation is stable and efficient.

[0008] Preferably, the air flow opening is semicircular or square; the distance between the annular cavity and the collar is set to D, 5mm≦D≦15mm. In practice, this technical solution can achieve the best anti-breakage effect of the spinning section.

[0009] In summary, the technical solution disclosed in the present invention has the following beneficial effects:

[0010] 1. Shrink the balloon to reduce spinning ends;

[0011] 2. Use the wind suction kinetic energy of the lower flute tube of the spinning frame to increase the working power of the wire ring, saving energy and reducing consumption;

[0012] 3. After the yarn is humidified, the cohesive force increases, which significantly reduces the yarn breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 It is a top view of the annular cavity and the outline of the present invention;

[0015] Figure 3 It is a schematic diagram of the structure of the tension control cylinder of the present invention. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings:

[0017] In order to solve the above technical problems, the present invention provides a high-speed ring spinning breakage multivariable control device, comprising a front jaw 1 of a spinning machine and a collar 11 arranged thereunder, a wire ring 3 being arranged on the collar 11; a bearing 8 is centrally arranged below the collar 11, a spindle rod 13 is arranged on the bearing 8; a tension control cylinder 12 is arranged between the front jaw 1 of the spinning machine and the collar 11; an annular cavity 10 is arranged on the outer periphery of the collar 11, the annular cavity 10 is provided with an opening a, the annular cavity 10 on one side of the opening a is provided with an aerosol generator 6, the aerosol generator 6 is externally provided with an air inlet 7, the annular cavity 10 on the other side of the opening a is provided with an air suction port 9, a plurality of air flow ports 4 are arranged on the inner wall of the annular cavity 10, the air flow ports 4 are respectively provided with guide plates 5, and the air flow ports 4 are arranged at the same height as the wire ring 3; the tension control cylinder 12 and the annular cavity 10 are arranged horizontally and have the same central axis as the spindle rod 13.

[0018] The tension control cylinder 12 is provided with a yarn inlet 12a, and an arc-shaped retaining edge 12b is provided on one side of the yarn inlet 12a. The tension control cylinder 12 is also provided with a fixed bracket 12c; the fixed bracket 12c is provided with a corresponding bracket seat, and the fixed bracket 12c can be adjusted at any angle along the bracket seat.

[0019] The setting angle of the guide plate 5 is consistent with the tangent direction of the guide 11.

[0020] The air flow opening 4 is set to be semicircular or square; the distance between the annular cavity 10 and the collar 11 is set to D, 5mm≦D≦15mm.

[0021] Over the years, the textile industry has conducted a lot of research on spinning breakage and achieved many beneficial results, which has continuously improved the spindle speed, especially in the control of the balloon, and has achieved fruitful results. Because the causes of spinning breakage are relatively complicated, it is limited to solve the problem by controlling the size of the balloon and reducing the centrifugal force. Practice has also proved this point. The control of spinning centrifugal force is a complex mechanical problem. The technicians conducted a mechanical analysis of the force changes of the yarn in the spinning section and found that the force of the yarn is related to the spindle speed and the limiting device that constrains its centrifugal force. The force situation is nonlinear. Based on this, a force constraint device with a certain height and size is designed. The device is considered to have a reasonable interval after finite element analysis and calculation. However, even if we do our best in limiting the centrifugal force of the yarn, we cannot further increase the speed. Therefore, it is further discovered that only by solving the friction between the program and the wire ring and the fiber cohesion problem can the spindle speed be effectively increased and the problem of easy spinning breakage be solved. After a small batch test, the technicians found that the spindle speed can be increased by about 20% after adopting the technical solution of the present invention. The test is based on the normal production speed of a large factory.

[0022] Working principle of the present invention: The suction fan of the flute tube under the spinning frame provides the power airflow for the present invention, and the power airflow passes through the air inlet 7 and the aerosol generator 6 to generate a water mist airflow, which is then redirected by the guide plate 5 and sprayed through the air outlet 4 to the wire ring 3 to assist it, and can also cool the high-speed wire ring 3. The heat-absorbing water mist airflow automatically rises in the tension control cylinder 12, synchronously humidifies the spinning section, significantly increases the cohesion of the spinning fiber 2, and greatly reduces the spinning end breakage in the spinning section.

[0023] The invention has a simple structure and is easy to operate. The disclosed technical solution can shrink the balloon and reduce spinning ends; the wind suction kinetic energy of the lower flute of the spinning frame is used to increase the power of the wire ring, thereby achieving energy saving and consumption reduction.

Claims

1. A high-speed ring spinning end breakage multivariable control device, comprising a front jaw (1) of a spinning frame and a collar (11) arranged below the front jaw, a wire ring (3) being arranged on the collar (11); a bearing (8) being arranged centrally below the collar (11), a spindle rod (13) being arranged on the bearing (8); characterized in that: A tension control cylinder (12) is arranged between the front jaw (1) of the spinning machine and the collar (11); an annular cavity (10) is arranged on the periphery of the collar (11); the annular cavity (10) is arranged with an opening a; the annular cavity (10) on one side of the opening a is arranged with an aerosol generator (6); the aerosol generator (6) is provided with an air inlet (7) on the outside; the annular cavity (10) on the other side of the opening a is arranged with an air suction port (9); the inner wall of the annular cavity (10) is provided with a plurality of A dry air flow inlet (4), each of which is provided with a guide plate (5), and the air flow inlet (4) is arranged at the same height as the wire ring (3); the tension control tube (12) and the annular cavity (10) are arranged horizontally and have the same central axis as the spindle rod (13); the guide plate (5) is arranged at an angle consistent with the tangent direction of the guide line (11); the air flow inlet (4) is arranged in a semicircular or square shape; the distance between the annular cavity (10) and the guide line (11) is set to D, 5mm≦D≦15mm.

2. The high-speed ring spinning end break multivariable control device according to claim 1, characterized in that: The tension control cylinder (12) is provided with a yarn inlet (12a), one side of the yarn inlet (12a) is provided with an arc-shaped retaining edge (12b), and the tension control cylinder (12) is also provided with a fixed bracket (12c); the fixed bracket (12c) is provided with a bracket seat corresponding thereto, and the fixed bracket (12c) can be adjusted at any angle along the bracket seat.

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