Single-spindle yarn guiding mechanism suitable for automatic joint type rotor spinning machine

Abstract

The invention discloses a single-spindle yarn guiding mechanism suitable for an automatic joint type rotor spinning machine, which comprises a mounting plate, a yarn guiding motor is mounted at one end of the mounting plate, a yarn guiding roller is mounted on an output shaft of the yarn guiding motor, a support shaft is mounted at the position, corresponding to the yarn guiding motor, of the mounting plate, and the support shaft is rotatably connected with a shaft sleeve; the shaft sleeve is pressed at one end of the yarn leading lever, the supporting shaft is sleeved with a torsional spring, a leather roller shaft is installed at the position, corresponding to the shaft sleeve, of the yarn leading lever, one end of the leather roller shaft is rotationally connected with a yarn leading leather roller, a lifting air cylinder is arranged between the other end of the installation plate and the yarn leading lever, and the output end of the lifting air cylinder is hinged to an air cylinder rotating shaft. The cylinder rotating shaft is mounted at the other end of the mounting plate. A single-spindle yarn guiding structure is adopted to replace a traditional yarn guiding mode, an original single-motor single-yarn-guiding-shaft driving mode is replaced with a single-spindle single-motor single-yarn-guiding mode, the reverse yarn storage amount and the acceleration process of yarn jointing can be accurately controlled, and the success rate of yarn jointing is greatly increased.

Description

Technical Field

[0001] The present invention relates to the technical field of rotor spinning machines, and more particularly to a single-spindle yarn-leading mechanism suitable for an automatic-joint rotor spinning machine. Background Art

[0002] When the rotor spinning machine is spinning, the yarn drawing roller and the yarn drawing roller touch each other to form a yarn drawing mechanism, which clamps the condensed and twisted yarn in the rotor and pulls it out of the spinning machine, and then the winding roller drives the yarn bobbin to clamp and wind the yarn; the yarn drawing roller is driven by a mechanism that is always in a rotating state and rotates continuously, and the yarn drawing roller is driven to rotate due to its contact with the yarn drawing roller, and the yarn drawing roller and the yarn drawing roller rotate at the same time to clamp and pull the yarn. The yarn drawing mechanism directly affects the traction of the yarn, and the yarn drawing stability and quality directly affect the final quality of the product.

[0003] As the intelligence level of rotor spinning machines continues to improve, the traditional yarn delivery structure is no longer suitable for automatic piecing rotor spinning machines because it requires manual assistance to lift the yarn delivery roller and lacks the contact surface between the yarn automatic introduction yarn delivery roller and the yarn delivery roller. Therefore, a new solution is needed to solve the above problems. Summary of the Invention

[0004] The object of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a single-spindle yarn-leading mechanism suitable for an automatic piecing-type rotor spinning machine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A single-spindle yarn-feeding mechanism suitable for an automatic joint-type rotor spinning machine includes a mounting plate, a yarn-feeding motor is mounted on one end of the mounting plate, a yarn-feeding roller is mounted on the output shaft of the yarn-feeding motor, a support shaft is mounted at a position of the mounting plate corresponding to the yarn-feeding motor, the support shaft is rotatably connected to a shaft sleeve, the shaft sleeve is pressed onto one end of a yarn-feeding lever, the support shaft is sleeved with a torsion spring, one end of the torsion spring is buckled in the long waist hole of the mounting plate, the other end of the torsion spring is connected to the yarn-feeding lever, a roller shaft is mounted at a position of the shaft sleeve corresponding to the yarn-feeding lever, one end of the roller shaft is rotatably connected to the yarn-feeding roller, a lifting cylinder is provided between the other end of the mounting plate and the yarn-feeding lever, the end of the lifting cylinder is hinged to the yarn-feeding lever, the output end of the lifting cylinder is hinged to the cylinder rotating shaft, and the cylinder rotating shaft is mounted on the other end of the mounting plate.

[0007] Furthermore, the other end of the top roller shaft is rotatably connected to a top roller limiter, and the top roller limiter is rotated to abut one end against the housing of the yarn drawing motor to separate the yarn drawing top roller and the yarn drawing roller.

[0008] Furthermore, the leather roller limiter is provided with a mounting hole for the leather roller shaft to pass through, and the leather roller limiter is provided with a plurality of arc-shaped blocks along the circumference of the mounting hole, and the leather roller shaft is provided with a plurality of arc-shaped slots corresponding to the positions of the arc-shaped blocks, and the slot length of the arc-shaped slots is greater than the length of the arc-shaped blocks. The leather roller limiter is connected to the leather roller shaft through the snap-fitting of the arc-shaped blocks and the arc-shaped slots, and is rotatably connected to the leather roller shaft by the arc-shaped blocks moving along the arc-shaped slots.

[0009] Furthermore, a yarn guide wire is installed at the position of the yarn lead-in lever corresponding to the yarn lead-in roller, and the yarn guide wire is limited by a limiting boss on the yarn lead-in lever.

[0010] Furthermore, a ball head is provided at one end of the roller shaft, and the ball head is buckled with a snap fastener for limiting the position of the yarn guide roller.

[0011] Furthermore, a yarn guide head is installed at the other end of the yarn guide lever, a yarn guide head insert is installed at the end of the yarn guide head, and a wire sliding groove is provided on the yarn guide head insert.

[0012] Furthermore, a limiting bolt is installed at the end of the support shaft, a gasket and a retaining ring are provided between the limiting bolt and the support shaft, and the gasket and the retaining ring are sleeved on the limiting bolt.

[0013] The beneficial effects of the present invention are:

[0014] 1. The present invention adopts a single-spindle yarn-feeding structure to replace the traditional yarn-feeding method, and replaces the original single-motor single-yarn-feeding shaft drive with a single-spindle single-motor single-yarn-feeding method. It can accurately control the reverse yarn storage amount and acceleration process of the yarn joint, so that the success rate of the yarn joint is greatly improved. In combination with other automatic joint components, the shape and quality of the yarn joint can be kept highly consistent.

[0015] 2. The present invention has the functions of automatic lifting of the top roller and automatic introduction of the yarn. Except in the event of equipment failure, there is no need for manual participation in the yarn joint work.

[0016] 3. The present invention integrates and installs various components in the entire yarn feeding mechanism to form an integrated structure. The whole relies on the mounting plate as the main body, so that the entire yarn feeding mechanism forms a separate module, which has better integrity and is conducive to installation, maintenance and repair.

[0017] 4. When the rotor spinning machine is stopped for a long time, the present invention utilizes the top roller limiter to have the top roller lifting limit protection function to prevent the yarn drawing top roller from being deformed due to stress and causing additional losses.

[0018] 5. The yarn guide head of the present invention adopts a partial porcelain structure, which can meet the use requirements and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1Schematic diagram of a structure of a single-spindle yarn delivery mechanism applicable to an automatic piecing type rotor spinning machine in this embodiment;

[0020] Figure 2 Schematic diagram of the main structure of a single-spindle yarn delivery mechanism applicable to an automatic piecing type rotor spinning machine in this embodiment;

[0021] Figure 3 1 is a right side structural schematic diagram of a single spindle yarn delivery mechanism applicable to an automatic piecing type rotor spinning machine in this embodiment;

[0022] Figure 4 Schematic diagram of an exploded structure of a single-spindle yarn delivery mechanism applicable to an automatic joint-type rotor spinning machine in this embodiment;

[0023] Figure 5 Schematic diagram of the structure of the roller limiter in this embodiment.

[0024] Figure markings: mounting plate 1, long waist hole 101, positioning pin 102, yarn drawing motor 2, yarn drawing roller 3, support shaft 4, sleeve 5, yarn drawing lever 6, limiting boss 601, torsion spring 7, leather roller shaft 8, ball head 801, snap buckle 802, yarn drawing leather roller 9, lifting cylinder 10, cylinder rotating shaft 11, leather roller limiter 12, mounting hole 1201, arc-shaped block 1202, yarn guide wire 13, yarn guide head 14, yarn guide head insert 15, sliding groove 1501, limiting bolt 16, gasket 17, retaining ring 18, main beam 19, positioning hole 1901, fastening bolt 20. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Embodiment: A single spindle yarn delivery mechanism suitable for an automatic joint type rotor spinning machine, such as Figure 1-Figure 5As shown, it includes a mounting plate 1, which serves as a mounting carrier for various components in the entire yarn delivery mechanism and is connected to the main beam 19 of the rotor spinning machine. A yarn delivery motor 2 is installed at one end of the mounting plate 1, and a yarn delivery roller 3 is installed on the output shaft of the yarn delivery motor 2. A support shaft 4 is installed at the position of the mounting plate 1 corresponding to the yarn delivery motor 2. The support shaft 4 is rotatably connected to a sleeve 5, that is, the sleeve 5 is sleeved on the support shaft 4, and the sleeve 5 can rotate with the support shaft 4 as the axis. The sleeve 5 is pressed on one end of the yarn delivery lever 6, and the support shaft 4 is sleeved with a torsion spring 7. The torsion spring 7 is located between the sleeve 5 and the mounting plate 1. One end of the torsion spring 7 is buckled in the long waist hole 101 of the mounting plate 1. The other end of the torsion spring 7 is connected to the yarn lead lever 6. The yarn lead lever 6 is equipped with a roller shaft 8 at the position corresponding to the sleeve 5. One end of the roller shaft 8 is rotatably connected to the yarn lead roller 9. A lifting cylinder 10 is provided between the other end of the mounting plate 1 and the yarn lead lever 6. The end of the lifting cylinder 10 is hinged to the yarn lead lever 6. The output end of the lifting cylinder 10 is hinged to the cylinder rotating shaft 11. The cylinder rotating shaft 11 is installed at the other end of the mounting plate 1.

[0027] When the yarn breaks, e.g. Figure 2 As shown, the lifting cylinder 10 is opened, and under the action of the extension of the output end of the lifting cylinder 10, the yarn drawing lever 6 rotates upward with the support shaft 4 as the axis, so that the yarn drawing roller 9 and the yarn drawing roller 3 are separated, and a channel for the yarn to be drawn in is formed between the yarn drawing roller 9 and the yarn drawing roller 3; when the yarn joint is completed, the yarn is drawn between the yarn drawing roller 9 and the yarn drawing roller 3 through the guide wire 13, and then the lifting cylinder 10 drives its output end to contract, and the yarn drawing lever 6 rotates downward with the support shaft 4 as the axis, so that the yarn drawing roller 9 touches the yarn drawing roller 3, and the yarn is held between the yarn drawing roller 9 and the yarn drawing roller 3.

[0028] In the contact transmission between the delivery roller 3 and the delivery roller 9, the delivery roller 3 acts as the driving wheel and is driven by the delivery motor 2. This motor's drive of the delivery roller 3 allows for precise control of the reverse yarn storage and acceleration during yarn piecing, significantly improving the success rate of yarn piecing. In conjunction with other automatic piecing components, this ensures highly consistent yarn piecing shape and quality. Furthermore, the delivery roller 3 and the delivery motor 2 form a single-spindle delivery structure, acting as independent modules that can be replaced and maintained without disrupting overall machine operation.

[0029] As a preference, Figure 1 and Figure 2 Two locating pins 102 are provided at the top of the mounting plate 1. When connecting to the main beam 19 of the rotor spinning machine, the two locating pins 102 are first aligned with the two locating holes 1901 on the main beam 19, and then the connection is completed by tightening the bolts 20. The locating pins 102 and the locating holes 1901 are matched to ensure the installation accuracy of the entire structure, which is convenient for installation, maintenance and repair.

[0030] Further, such as Figure 1-Figure 4 As shown, the other end of the top roller shaft 8 is rotatably connected to a top roller stopper 12, and the top roller stopper 12 can rotate a certain angle around the top roller shaft 8. When the rotor spinning machine is stopped for a long time, the top roller stopper 12 is rotated so that one end thereof abuts against the housing of the yarn delivery motor 2, so that the yarn delivery roller 9 and the yarn delivery roller 3 are separated, thereby preventing the yarn delivery roller 9 from stress deformation.

[0031] Specifically, such as Figure 5 As shown, the roller limiter 12 is provided with a mounting hole 1201 for the roller shaft 8 to pass through, and the roller limiter 12 is provided with a plurality of arc-shaped blocks 1202 along the circumference of the mounting hole 1201, and the roller shaft 8 is provided with a plurality of arc-shaped slots (not shown) corresponding to the arc-shaped blocks 1202, and the arc-shaped slots are adapted to the arc-shaped blocks 1202; when the roller limiter 12 is installed on the roller shaft 8, the arc-shaped blocks 1202 and the arc-shaped slots are engaged with each other to form a whole, and at the same time, since the length of the arc-shaped slots is greater than the length of the arc-shaped blocks 1202, the arc-shaped blocks 1202 can move along the arc-shaped slots, and at the same time, the length of the arc-shaped slots limits the moving stroke of the arc-shaped blocks 1202, so that the roller limiter 12 can rotate around the roller shaft 8 by a certain angle. Based on this, when the rotor spinning machine is stopped for a long time, the roller limiter 12 is rotated to make one end thereof abut against the housing of the yarn drawing motor 2, so that the yarn drawing roller 3 and the yarn drawing roller 9 are out of suspension.

[0032] Further, such as Figure 1-Figure 4 As shown, a yarn guide wire 13 is installed at the position of the yarn lead lever 6 corresponding to the yarn lead roller 9, that is, the yarn guide wire 13 is fixed to the yarn lead lever 6 by a fastening bolt 20, and the yarn guide wire 13 is used to automatically draw the yarn between the yarn lead roller 3 and the yarn lead roller 9.

[0033] Preferably, a limiting boss 601 is provided on the yarn drawing lever 6. By providing the limiting boss 601, on the one hand, the stability of the installation of the yarn guide wire 13 is improved, and on the other hand, the limiting boss 601 is used to limit the installation direction of the yarn guide wire 13 so that the yarn can be smoothly drawn between the yarn drawing roller 3 and the yarn drawing roller 9.

[0034] Furthermore, a ball head 801 is provided at one end of the roller shaft 8, and the ball head 801 is buckled with a male and female joint, and the male and female joint 802 is used to limit the yarn drawing roller 9 to prevent the yarn drawing roller 9 from slipping out of the roller shaft 8.

[0035] Furthermore, a yarn guide head 14 is mounted on the other end of the yarn guide lever 6, and a yarn guide head insert 15 is mounted on the end of the yarn guide head 14. That is, the yarn guide head insert 15 is fixed to the yarn guide head 14 by self-tapping screws, and a wire sliding groove 1501 is formed on the yarn guide head insert 15. The yarn guide head insert 15 is used to limit the yarn, and when the lifting cylinder 10 drives the yarn guide lever 6 to rotate upward, the yarn is automatically drawn to the yarn guide wire 13, and then automatically drawn between the yarn guide roller 3 and the yarn guide roller 9 through the yarn guide wire 13.

[0036] As preferably, the yarn guide head 14 is embedded in the yarn lead lever 6 and is fixed by self-tapping bolts. Adopting the above structure, to improve the connection stability of the yarn guide head 14 and the yarn lead lever 6, it is convenient to overhaul and replace simultaneously.

[0037] Preferably, the yarn guide head insert 15 and the yarn guide head 14 are provided with a positioning flat square structure at the matching position to limit the installation position of the yarn guide head insert 15, thereby ensuring the accurate orientation of the wire guide groove 1501 after installation.

[0038] Preferably, the yarn guide head insert 15 is made of ceramic material to prevent wear during the sliding of the yarn; at the same time, only the yarn guide head insert 15 is set to be ceramic material, that is, the yarn guide head 14 is partially made of ceramic structure to meet the use requirements and save costs.

[0039] Furthermore, a limiting bolt 16 is installed at the end of the support shaft 4, and a gasket 17 and a retaining ring 18 are provided between the limiting bolt 16 and the support shaft 4, and the gasket 17 is located between the retaining ring 18 and the limiting bolt 16; by setting the limiting bolt 16, the gasket 17 and the retaining ring 18, the sleeve 5 and the yarn guide lever 6 are prevented from sliding out of the support shaft 4.

[0040] Furthermore, one end of the cylinder rotating shaft 11 is a bolt structure, which is fixed to the mounting plate 1 by a nut; the other end of the cylinder rotating shaft 11 is provided with a ball head, and the output end of the lifting cylinder 10 is installed with a ball seat that is compatible with the ball head. The ball head and the ball seat are combined to form a self-aligning ball head structure, which makes the operation of the lifting cylinder 10 flexible and reliable.

[0041] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A single spindle yarn delivery mechanism suitable for an automatic joint type rotor spinning machine, comprising a mounting plate (1), characterized in that: A yarn-leading motor (2) is installed at one end of the mounting plate (1), and a yarn-leading roller (3) is installed on the output shaft of the yarn-leading motor (2). A support shaft (4) is installed at a position corresponding to the yarn-leading motor (2) on the mounting plate (1), and the support shaft (4) is rotatably connected to a shaft sleeve (5). The shaft sleeve (5) is pressed onto one end of a yarn-leading lever (6). A torsion spring (7) is sleeved on the support shaft (4), and one end of the torsion spring (7) is buckled into a long waist hole (101) of the mounting plate (1), and the other end of the torsion spring (7) is locked. It is connected to the yarn-leading lever (6), and a roller shaft (8) is installed at the position of the yarn-leading lever (6) corresponding to the shaft sleeve (5). One end of the roller shaft (8) is rotatably connected to the yarn-leading roller (9). A lifting cylinder (10) is provided between the other end of the mounting plate (1) and the yarn-leading lever (6). The end of the lifting cylinder (10) is hinged to the yarn-leading lever (6), and the output end of the lifting cylinder (10) is hinged to the cylinder rotating shaft (11). The cylinder rotating shaft (11) is mounted on the other end of the mounting plate (1).

2. A single spindle yarn delivery mechanism suitable for an automatic piecing type rotor spinning machine according to claim 1, characterized in that: The other end of the roller shaft (8) is rotatably connected to a roller stopper (12), and the roller stopper (12) is rotated to abut one end against the housing of the yarn drawing motor (2) to separate the yarn drawing roller (9) and the yarn drawing roller (3).

3. A single spindle yarn delivery mechanism suitable for an automatic piecing type rotor spinning machine according to claim 2, characterized in that: The leather roller limiter (12) is provided with a mounting hole (1201) for the leather roller shaft (8) to pass through, and the leather roller limiter (12) is provided with a plurality of arc-shaped clamping blocks (1202) along the circumference of the mounting hole (1201), and the leather roller shaft (8) is provided with a plurality of arc-shaped clamping grooves corresponding to the positions of the arc-shaped clamping blocks (1202), and the groove length of the arc-shaped clamping groove is greater than the length of the arc-shaped clamping block (1202), and the leather roller limiter (12) is connected to the leather roller shaft (8) through the snap-fitting of the arc-shaped clamping block (1202) and the arc-shaped clamping groove, and is rotatably connected to the leather roller shaft (8) by the arc-shaped clamping block (1202) moving along the arc-shaped clamping groove.

4. The single spindle yarn delivery mechanism for an automatic piecing rotor spinning machine according to claim 1, characterized in that: A yarn guide wire (13) is installed at the position of the yarn guide lever (6) corresponding to the yarn guide roller (9), and the yarn guide wire (13) is limited by a limiting boss (601) on the yarn guide lever (6).

5. The single spindle yarn delivery mechanism suitable for an automatic piecing type rotor spinning machine according to claim 1, characterized in that: One end of the roller shaft (8) is provided with a ball head (801), and the ball head (801) is buckled with a snap-on buckle (802) for limiting the position of the yarn guide roller (9).

6. The single spindle yarn delivery mechanism for an automatic piecing rotor spinning machine according to claim 1, characterized in that: The other end of the yarn guide lever (6) is provided with a yarn guide head (14), the end of the yarn guide head (14) is provided with a yarn guide head insert (15), and the yarn guide head insert (15) is provided with a wire sliding groove (1501).

7. The single spindle yarn delivery mechanism for an automatic piecing rotor spinning machine according to claim 1, characterized in that: A limiting bolt (16) is installed at the end of the support shaft (4), a gasket (17) and a retaining ring (18) are provided between the limiting bolt (16) and the support shaft (4), and the gasket (17) and the retaining ring (18) are sleeved on the limiting bolt (16).

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