Tension device based on feedback of weighing sensor
By introducing a weighing sensor and closed-loop control algorithm into the warping machine, the yarn tension is directly measured and dynamically adjusted, solving the problems of insufficient accuracy and slow response speed in the existing technology. This achieves high-precision and fast tension control, improving product consistency and equipment reliability.
Patent Information
- Application Number
- CN202520564311.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Existing tension devices for warping machines detect yarn tension indirectly via signals, which lacks accuracy and dynamic response speed, resulting in tension fluctuations and poor product consistency.
The system uses a weighing sensor to directly detect yarn tension and combines it with a closed-loop control algorithm. The speed of the power equipment is adjusted through a PID algorithm to achieve closed-loop tension control. The rotating wheel is driven by a field-oriented control (FOC) algorithm and is equipped with a yarn breakage self-detection unit to ensure emergency braking.
It achieves high-precision tension control, fast response speed, improves product consistency and equipment reliability, and has outstanding industrial application value.
Smart Images
Figure CN223907041U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to textile machinery technical field more particularly to the tension device based on the feedback of weighing sensor. BACKGROUND
[0002] The existing tension device of the warping machine generally adjusts the yarn tension through the rotating wheel, although it can reduce the friction and keep the consistency of the tension, but still has the following shortcomings:
[0003] 1. The tension detection depends on the indirect signal: the existing technology indirectly infers the tension by monitoring the motor speed, the precision is limited, and the actual tension value of the yarn cannot be directly obtained.
[0004] 2. The dynamic response is insufficient: when the yarn accelerates or decelerates, the response speed of the magnetic brake is not high enough, resulting in tension fluctuation. UTILITY MODEL CONTENT
[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a tension device based on the feedback of weighing sensor to solve the problems in the above background technology.
[0006] The utility model provides the following technical scheme: a tension device based on the feedback of weighing sensor, comprising a mounting base, a rotating wheel, a control system, a power device, a weighing sensor, a presser bar and a guide eye, the weighing sensor is embedded in the yarn path between the presser bar and the guide eye, the weighing sensor is used for directly detecting the yarn tension and outputting the real-time tension signal.
[0007] The braking force of the rotating wheel is provided by the power device, the power device is built-in encoder and is driven through the magnetic field oriented control FOC algorithm, and the magnetic field oriented control FOC algorithm is integrated in the control system.
[0008] The control system comprises a signal processing module and a closed loop control module, the signal processing module is used for converting the analog signal of the weighing sensor into digital signal, and the closed loop control module compares the real-time tension value with the set tension value through PID algorithm and dynamically adjusts the speed of the power device to realize the closed loop control of the tension.
[0009] Preferably, the weighing sensor is fixed on the mounting base by screws, and a wire passing frame is installed on the weighing sensor.
[0010] Preferably, the surface of the wire passing frame is covered with wear-resistant ceramic, and the signal line of the weighing sensor is connected to the control system through a shielded cable.
[0011] Preferably, the closed loop control module is built-in yarn breakage self-checking unit, and the yarn breakage self-checking unit is used for triggering alarm and controlling the power device to brake urgently when the real-time tension value instantaneously drops more than the set threshold.
[0012] The technical effects and advantages of the present application are as follows:
[0013] 1. The present application introduces a weighing sensor to directly measure the yarn tension in the existing tension device of the warping machine, and combines a closed-loop control algorithm to achieve dynamic adjustment, solving the problem of insufficient precision caused by indirect detection, and providing faster response speed during acceleration and deceleration, significantly improving the intelligent level and reliability of the equipment, and having outstanding industrial application value.
[0014] 2. High-precision tension control: directly measuring the actual tension of the yarn, with a precision of ±1g, significantly improving product consistency.
[0015] 3. Dynamic response improvement: closed-loop feedback and use of power equipment to further shorten the tension adjustment response time.
[0016] 4. Reliability enhancement: wear-resistant design of the weighing sensor and anti-interference circuit to ensure long-term stable operation. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the present application.
[0018] Figure 2 It is a cooperation diagram of the weighing sensor, the yarn pressing sheet and the yarn guide porcelain eye of the present application.
[0019] Figure 3 It is a schematic diagram of the weighing sensor and the wire passing frame structure of the present application.
[0020] The reference signs are: 1, mounting base; 2, rotating wheel; 3, weighing sensor; 4, yarn pressing sheet; 5, yarn guide porcelain eye; 6, wire passing frame. DETAILED DESCRIPTION
[0021] The technical solutions in the present application will be described clearly and completely in combination with the drawings in the present application, and the forms of each structure described in the following embodiments are only examples. The tension device based on weighing sensor feedback involved in the present application is not limited to each structure described in the following embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.
[0022] The present application provides a tension device based on weighing sensor feedback, which comprises a mounting base 1, a rotating wheel 2, a control system, a power equipment, a weighing sensor 3, a yarn pressing sheet 4 and a yarn guide porcelain eye 5. The weighing sensor 3 is embedded in the yarn path between the yarn pressing sheet 4 and the yarn guide porcelain eye 5, and the weighing sensor 3 is used to directly detect the yarn tension and output real-time tension signal.
[0023] The rotating wheel 2 is used for braking the yarn, the braking force of the rotating wheel 2 is provided by a power device, the power device is built-in with an encoder and is driven through a magnetic field orientation control FOC algorithm, and the magnetic field orientation control FOC algorithm is integrated in a control system.
[0024] The control system comprises a signal processing module and a closed-loop control module, the signal processing module is used for converting an analog signal of the weighing sensor 3 into a digital signal, and the closed-loop control module compares a real-time tension value with a set tension value through a PID algorithm and dynamically adjusts the rotating speed of the power device to realize tension closed-loop control.
[0025] Specifically, the signal processing module amplifies and filters the signal of the weighing sensor 3 and then converts the signal into a digital signal through an ADC chip, the power device is provided with an encoder, and the magnetic field orientation control FOC algorithm built-in in the control system is used to realize closed-loop adjustment of the tension and the rotating speed.
[0026] Further, the weighing sensor 3 is fixed on the mounting base 1 through screws, the overline rack 6 is installed on the weighing sensor 3, the surface of the overline rack 6 is covered with wear-resistant ceramic, and the signal line of the weighing sensor 3 is connected to the control system through a shielded cable.
[0027] Specifically, the mounting base 1 is provided with a groove, the weighing sensor 3 is embedded in the groove of the mounting base 1 between the presser bar 4 and the guide eye 5, and then the weighing sensor 3 is fixed through screws, so that the yarn can vertically contact the force receiving surface of the weighing sensor 3 when passing through, the overline rack 6 covered with wear-resistant ceramic can avoid damage caused by yarn friction, and the signal line connected to the control system through a shielded cable can reduce electromagnetic interference.
[0028] Further, the closed-loop control module is built-in with a broken yarn self-checking unit, the broken yarn self-checking unit is used for triggering an alarm and controlling the power device to make emergency braking when the real-time tension value instantaneously drops by more than a set threshold value.
[0029] Further, the power device is a permanent magnet synchronous motor or a hysteresis brake, and the permanent magnet synchronous motor or the hysteresis brake can provide power for the rotating wheel 2, so as to brake the yarn.
[0030] The working principle of the utility model is as follows: the weighing sensor 3 collects yarn tension signals in real time, converts the tension signals into voltage signals, inputs the voltage signals into a control system after amplification, filtering and analog-digital conversion, the control system calculates a target rotating speed of a power device based on a PID algorithm, drives the power device to adjust the braking force of the rotating wheel 2 through a magnetic field orientation control FOC algorithm, so that the tension tends to a target value, and when an abnormal tension or a broken yarn is detected, the power device is controlled to make emergency braking and trigger an alarm shutdown.
[0031] Finally should be explained a few points is: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the term "installation", "connected", "connection" should be broad, can be mechanical or electrical connection, but also can be two elements inside the communication, can be directly connected, "up", "down", "left", "right" and so on, only for indicating the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change;
[0032] Second: the utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of not conflicting, the same embodiment and different embodiments of the utility model can be combined with each other;
[0033] Finally: the above only for the preferred embodiment of the utility model has, and does not for limiting the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.
Claims
1. Tension device based on weighing sensor feedback, characterized in that, It comprises a mounting base (1), a rotating wheel (2), a control system, a power device, a load cell (3), a presser bar (4) and a guide eye (5), the load cell (3) is embedded in the yarn path between the presser bar (4) and the guide eye (5), the load cell (3) is used for directly detecting the yarn tension and outputting the real-time tension signal; The braking force of the rotating wheel (2) is provided by the power device, the power device is built-in encoder and is driven by the field-oriented control FOC algorithm, the field-oriented control FOC algorithm is integrated in the control system; The control system comprises a signal processing module and a closed-loop control module, the signal processing module is used for converting the analog signal of the load cell (3) into a digital signal, the closed-loop control module compares the real-time tension value with the set tension value by the PID algorithm and dynamically adjusts the rotating speed of the power device to realize the closed-loop control of the tension.
2. The tension device based on load cell feedback according to claim 1, characterized in that, The load cell (3) is fixed on the mounting base (1) by screws, the load cell (3) is provided with a wire passing frame (6).
3. A tension device based on weighing sensor feedback according to claim 2, characterized in that, The surface of the wire passing frame (6) is covered with wear-resistant ceramic, the signal line of the load cell (3) is connected to the control system through a shielded cable.
4. A tension device based on weighing sensor feedback according to claim 3, characterized in that, The closed-loop control module is built-in yarn breakage self-checking unit, the yarn breakage self-checking unit is used for triggering alarm and controlling the power device to brake in emergency when the real-time tension value instantaneously drops more than the set threshold.