Yarn storage device of numerical control circular weft knitting machine

Abstract

The utility model discloses a numerical control circular weft knitting machine yarn storage device which comprises a base, a first motor is fixedly installed on the base, a guide spool is installed on an output shaft of the first motor, a controller is fixedly connected to the base, the output shaft of the first motor is connected with a reciprocating lead screw through a belt pulley, and the reciprocating lead screw is connected with a motor. A reciprocating screw rod is installed on the base, a moving block is installed on the reciprocating screw rod, a vertical rod is installed on the moving block in a penetrating mode, the vertical rod is fixed to the base, a limiting rod is fixedly installed on the moving block, a tension detecting and adjusting component is installed in the middle of the moving block, and winding wheels for guiding yarn are installed at the ends of the tension detecting and adjusting component and the limiting rod. According to the yarn storage device of the numerical control circular weft knitting machine, the yarn tension can be digitally monitored, the tension sensor is electrically connected with the adjusting module, the yarn winding tension is changed through the adjusting module, and meanwhile the yarn storage barrel can be controlled to automatically stop winding after the winding amount reaches the maximum value.

Description

Technical Field

[0001] The utility model relates to the technical field of yarn storage devices, in particular to a yarn storage device for a numerically controlled circular weft knitting machine. Background Art

[0002] The intelligent CNC weft knitting machine yarn storage device is an advanced form of weft knitting machine yarn feeding mechanism, which integrates intelligent control and CNC technology to accurately adjust and stabilize the yarn feeding tension to meet the high quality and high efficiency requirements of modern textile production.

[0003] For example, a yarn storage device for a knitting circular weft knitting machine with the announcement number CN219099484U includes a mounting frame, a horizontal plate is fixedly connected to the mounting frame, a motor is installed at the upper end of the mounting frame, a rotating rod is fixedly connected to the output end of the motor, a rectangular rod is fixedly connected to the lower end of the rotating rod, a yarn storage drum is provided below the rectangular rod, a rectangular frame is installed at the upper end of the yarn storage drum, the rectangular rod extends into the rectangular frame, a round rod is passed through the upper and lower parts of the horizontal plate and is slidably connected to it, and an annular block is fixedly connected to the bottom of the yarn storage drum, and the round rod is located in the annular block and is movably connected.

[0004] The above-mentioned prior art has the following technical problems: when the existing yarn storage device is winding the yarn, it is not convenient to perform intelligent real-time monitoring of the yarn tension; when the yarn tension is too large or too small, it is not convenient to effectively adjust the yarn tension; at the same time, when the yarn storage drum is winding the yarn, when the winding amount of the yarn reaches the maximum value, it is not convenient to transmit the signal to the controller to realize the automatic stop of the winding of the yarn storage drum.

[0005] Therefore, we propose a yarn storage device for a CNC knitting circular weft knitting machine to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the present utility model is to provide a yarn storage device for a CNC knitting circular weft knitting machine to solve the problem raised in the above background technology that the existing yarn storage devices on the market are not convenient for intelligent real-time monitoring of yarn tension when winding the yarn, and are not convenient for effectively adjusting the yarn tension when the yarn tension is too large or too small. At the same time, when the yarn storage drum is winding the yarn, when the winding amount of the yarn reaches the maximum value, it is not convenient to transmit the signal to the controller to realize the automatic stop of winding of the yarn storage drum.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a yarn storage device for a CNC knitting circular weft knitting machine, comprising a base, a first motor is fixedly mounted on the base, and a guide yarn drum is mounted on the output shaft of the first motor, a controller is fixedly connected to the base, the output shaft of the first motor is interconnected through a pulley and a reciprocating screw rod, and a moving block is mounted on the reciprocating screw rod, a vertical rod is installed through the moving block, and the vertical rod is fixed on the base, a limiting rod is fixedly mounted on the moving block, and a tension detection and adjustment component is mounted in the middle of the moving block, and winding wheels for guiding the yarn are mounted on the ends of the tension detection and adjustment component and the limit rod, and an in-place monitoring component is mounted on the side of the guide yarn drum, and the in-place monitoring component is used to control the guide yarn drum to stop winding after the winding amount of the guide yarn drum reaches the limit.

[0008] Preferably, the moving block and the reciprocating screw rod are threadedly connected, and the moving block can slide on the vertical rod.

[0009] By adopting the above technical solution, the moving block can move back and forth up and down along the vertical rod through the rotation of the reciprocating screw.

[0010] Preferably, the tension detection and adjustment component includes a movable rod, a tension sensor, an adjustment screw and a second motor, and the tension sensor is installed on the side of the movable rod, the adjustment screw is installed in the middle of the movable rod, and the adjustment screw is fixed on the output end of the second motor.

[0011] By adopting the above technical solution, the winding tension of the yarn can be monitored through the tension sensor on the movable rod.

[0012] Preferably, the cross section of the movable rod is set to be rectangular, and the outer wall of the end of the movable rod and the inner wall of the moving block are in contact with each other, and the movable rod can slide on the moving block.

[0013] By adopting the above technical solution, the movable rod slides on the moving block, thereby preventing the movable rod from rotating synchronously with the adjusting screw rod.

[0014] Preferably, the in-place monitoring component includes a vertical plate, a connecting column, a power wheel, a side plate, a reset spring and a pressure sensor, and the vertical plate is fixed on the base, the connecting column is installed through the vertical plate, and the power wheel is installed at one end of the connecting column close to the guide yarn tube, the side of the connecting column is fixedly installed with a side plate, and one side plate on the connecting column is connected to the vertical plate through a reset spring, and a pressure sensor is provided on the outer side of the other side plate on the connecting column, and the pressure sensor is fixed on the vertical plate.

[0015] Preferably, the connecting column and the vertical plate are slidably connected, and a side plate of the connecting column and the pressure sensor on the vertical plate are on the same horizontal line.

[0016] By adopting the above technical solution, as the winding amount of the yarn on the guide yarn drum increases, the connecting column can be pushed to slide on the vertical plate.

[0017] Preferably, the first motor and the second motor are both electrically connected to the controller, and the tension sensor and the pressure sensor are also electrically connected to the controller.

[0018] By adopting the above technical solution, when the controller receives signals from the tension sensor and the pressure sensor, it can control the opening and closing of the first motor and the second motor.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the yarn storage device of the CNC circular weft knitting machine can digitally monitor the yarn tension, electrically connect the tension sensor with the adjustment module, use the adjustment module to change the yarn winding tension, and control the yarn storage drum to automatically stop winding after the winding amount reaches the maximum value;

[0020] 1. A guide yarn drum is provided, and the guide yarn drum is controlled to rotate by a first motor, so that the yarn can be wound. At the same time, when the guide yarn drum rotates, it can drive the reciprocating screw rod to rotate through a pulley. The rotation of the reciprocating screw rod can cause the moving block on it to move back and forth up and down, thereby using the reciprocating moving block and the rotating guide yarn drum to evenly wind the yarn;

[0021] 2. A tension sensor is provided. The tension of the yarn can be monitored by the tension sensor on the movable rod. When the tension is too large or too small, the tension sensor controls the second motor to start. After the second motor is turned on, the adjustment screw rod can be rotated. The rotation of the adjustment screw rod can move the threaded movable rod. The movement of the movable rod can adjust the yarn tension by changing the position of the winding wheel at the end.

[0022] 3. A power wheel is provided, and the power wheel and the guide yarn drum are in contact with each other. When the guide yarn drum rotates to wind the yarn, as the winding diameter increases, the power wheel and the connecting column can be pushed to move on the vertical plate. When the winding amount of the guide yarn drum reaches the limit, the side plate on the connecting column squeezes the pressure sensor, and the pressure sensor receives the signal and transmits it to the controller, which controls the first motor to stop the rotation of the guide yarn drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the pulley and reciprocating screw rod of the utility model;

[0025] Figure 3This is a schematic diagram of the structure of the reciprocating screw rod and the moving block of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the movable rod and the adjusting screw rod of the utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the side plate and pressure sensor of the utility model;

[0028] Figure 6 This is a flow chart of the control system of the utility model.

[0029] In the figure: 1. Base; 2. First motor; 3. Guide yarn drum; 4. Controller; 5. Pulley; 6. Reciprocating screw; 7. Moving block; 8. Vertical rod; 9. Limit rod; 10. Movable rod; 11. Winding wheel; 12. Tension sensor; 13. Adjusting screw; 14. Second motor; 15. Vertical plate; 16. Connecting column; 17. Power wheel; 18. Side plate; 19. Return spring; 20. Pressure sensor. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0031] Example 1: Please refer to Figures 1-6, when the existing yarn storage device is winding the yarn, it is not convenient to perform intelligent real-time monitoring of the yarn tension. When the yarn tension is too large or too small, it is not convenient to effectively adjust the yarn tension. In order to solve this technical problem, the present embodiment discloses the following technical content: a yarn storage device for a CNC knitting circular weft knitting machine, comprising a base 1, a first motor 2 is fixedly mounted on the base 1, and a guide yarn drum 3 is mounted on the output shaft of the first motor 2, a controller 4 is fixedly connected to the base 1, the output shaft of the first motor 2 is connected to the reciprocating screw rod 6 through a pulley 5, and a moving block 7 is mounted on the reciprocating screw rod 6, a vertical rod 8 is installed through the moving block 7, and the vertical rod 8 is fixed on the base 1, a limit rod 9 is fixedly mounted on the moving block 7, and a tension detection and adjustment component is installed in the middle of the moving block 7, and the ends of the tension detection and adjustment component and the limit rod 9 are both equipped with a winding wheel 11 for guiding the yarn, the moving block 7 and the reciprocating screw rod 6 are threadedly connected, and the moving block 7 can slide on the vertical rod 8. The tension detection and adjustment component includes a movable rod 10, a tension sensor 12, an adjusting screw 13 and a second motor 14, and the tension sensor 12 is installed on the side of the movable rod 10, and the adjusting screw 13 is installed in the middle of the movable rod 10, and the adjusting screw 13 is fixed on the output end of the second motor 14. The cross-section of the movable rod 10 is set to be rectangular, and the outer wall of the end of the movable rod 10 and the inner wall of the moving block 7 are in contact with each other, and the movable rod 10 can slide on the moving block 7.

[0032] When the yarn needs to be wound, the yarn is passed through the limit rod 9 on the moving block 7 and the winding wheel 11 at the end of the movable rod 10 and fixed to the guide yarn drum 3. At this time, the first motor 2 is turned on. After the first motor 2 is turned on, the guide yarn drum 3 can be rotated, and the yarn can be wound by the rotation of the guide yarn drum 3. At the same time, after the first motor 2 rotates, the pulley 5 can be used to drive the reciprocating screw rod 6 to rotate. After the reciprocating screw rod 6 rotates, the threaded moving block 7 can be moved back and forth along the vertical direction of the vertical rod 8. The up and down reciprocating movement of the moving block 7 can make the yarn uniform. The yarn is wound on the guide yarn drum 3, and when the yarn is wound, the tension of the yarn can be detected by the tension sensor 12 on the movable rod 10. When the yarn tension is too large or too small, the tension sensor 12 transmits the signal to the controller 4, and the controller 4 controls the second motor 14 to turn on. After the second motor 14 is turned on, the adjusting screw rod 13 can be rotated. By rotating the adjusting screw rod 13, the threaded movable rod 10 and the winding wheel 11 at the end can be moved on the moving block 7. The position of the winding wheel 11 at the end of the movable rod 10 changes, and the tension of the yarn can be adjusted.

[0033] Example 2: The technical content disclosed in this embodiment is a further improvement based on the above-mentioned Example 1. When the storage drum is winding the yarn, when the winding amount of the yarn reaches the maximum value, it is not convenient to transmit the signal to the controller 4 to realize the automatic stop of the storage drum winding. In order to further solve this technical problem, this embodiment discloses the following technical content. The side of the guide yarn drum 3 is equipped with an in-place monitoring component. The in-place monitoring component is used to control the guide yarn drum 3 to stop winding after the winding amount of the guide yarn drum 3 reaches the limit. The in-place monitoring component includes a vertical plate 15, a connecting post 16, a power wheel 17, a side plate 18, a return spring 19, and a pressure sensor 20. The vertical plate 15 is fixed to the base 1. The connecting post 16 is installed through the vertical plate 15, and the power wheel 17 is installed on the end of the connecting post 16 near the guide yarn drum 3. The side plate 18 is fixedly installed on the side of the connecting post 16, and one side plate 18 on the connecting post 16 is connected to the vertical plate 15 by the return spring 19. The pressure sensor 20 is installed on the outer side of the other side plate 18 on the connecting post 16, and the pressure sensor 20 is fixed to the vertical plate 15. The connecting post 16 and the vertical plate 15 are slidably connected, and the side plate 18 on one side of the connecting post 16 and the pressure sensor 20 on the vertical plate 15 are on the same horizontal line. The first motor 2 and the second motor 14 are both electrically connected to the controller 4, and the tension sensor 12 and the pressure sensor 20 are also electrically connected to the controller 4.

[0034] In the initial state, the power wheel 17 and the guide yarn drum 3 fit together. As the guide yarn drum 3 rotates to reel in the yarn, the winding diameter of the yarn increases, thereby pushing the power wheel 17 and the connecting column 16 to move on the vertical plate 15. When the yarn winding amount on the guide yarn drum 3 reaches the maximum, the side plate 18 on the connecting column 16 squeezes the pressure sensor 20 on the vertical plate 15. After the pressure sensor 20 is pressurized, it transmits a signal to the controller 4. The controller 4 controls the first motor 2 to turn off, thereby stopping the winding of the guide yarn drum 3.

[0035] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A yarn storage device for a CNC circular weft knitting machine, comprising a base (1), a first motor (2) fixedly mounted on the base (1), a guide yarn drum (3) mounted on the output shaft of the first motor (2), a controller (4) fixedly connected to the base (1), the output shaft of the first motor (2) being connected to a reciprocating screw (6) via a pulley (5), a moving block (7) mounted on the reciprocating screw (6), a vertical rod (8) being mounted through the moving block (7), and the vertical rod (8) being fixed on the base (1), characterized in that: Also includes: A limit rod (9) is fixedly mounted on the moving block (7), and a tension detection and adjustment component is mounted in the middle of the moving block (7), and winding wheels for guiding the yarn are mounted at the ends of the tension detection and adjustment component and the limit rod (9). An in-position monitoring component is mounted on the side of the guide yarn drum (3), and the in-position monitoring component is used to control the guide yarn drum (3) to stop winding after the winding amount of the guide yarn drum (3) reaches a limit.

2. The yarn storage device for a CNC circular weft knitting machine according to claim 1, characterized in that: The moving block (7) and the reciprocating screw rod (6) are threadedly connected, and the moving block (7) can slide on the vertical rod (8).

3. The yarn storage device for a CNC circular weft knitting machine according to claim 1, characterized in that: The tension detection and adjustment component comprises a movable rod (10), a tension sensor (12), an adjustment screw rod (13) and a second motor (14), wherein the tension sensor (12) is installed on the side of the movable rod (10), the adjustment screw rod (13) is installed in the middle of the movable rod (10), and the adjustment screw rod (13) is fixed on the output end of the second motor (14).

4. The yarn storage device for a CNC circular weft knitting machine according to claim 3, characterized in that: The cross section of the movable rod (10) is set to be rectangular, and the outer wall of the end of the movable rod (10) and the inner wall of the moving block (7) are in contact with each other, and the movable rod (10) can slide on the moving block (7).

5. The yarn storage device for a CNC circular weft knitting machine according to claim 1, characterized in that: The in-place monitoring component includes a vertical plate (15), a connecting column (16), a power wheel (17), a side plate (18), a reset spring (19) and a pressure sensor (20), and the vertical plate (15) is fixed on the base (1), the connecting column (16) is installed through the vertical plate (15), and the power wheel (17) is installed at one end of the connecting column (16) close to the guide yarn drum (3), the side of the connecting column (16) is fixedly installed with a side plate (18), and one side plate (18) on the connecting column (16) is connected to the vertical plate (15) through the reset spring (19), and the pressure sensor (20) is provided on the outside of the other side plate (18) on the connecting column (16), and the pressure sensor (20) is fixed on the vertical plate (15).

6. The yarn storage device for a CNC circular weft knitting machine according to claim 5, characterized in that: The connecting column (16) and the vertical plate (15) are slidably connected, and a side plate (18) on one side of the connecting column (16) and a pressure sensor (20) on the vertical plate (15) are on the same horizontal straight line.

7. The yarn storage device for a CNC circular weft knitting machine according to claim 5, characterized in that: The first motor (2) and the second motor (14) are both electrically connected to the controller (4), and the tension sensor (12) and the pressure sensor (20) are also electrically connected to the controller (4).

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