Weighing adjusting device and weighing method for P / F line conveying system

Abstract

The invention discloses a P / F line conveying system weighing adjusting device and a weighing method, and relates to the field of P / F line conveying systems.The weighing adjusting device comprises two conveying rails arranged in parallel, conveying modules are arranged on the two conveying rails, induction plates are arranged on the conveying modules, supporting frames are arranged at the tops of the conveying modules, and the supporting frames are arranged on the conveying rails. The two supporting frames jointly act to support a weight, inductive switches are arranged at the two ends of the two conveying rails, the weighing module is located between the two conveying rails, and a hydraulic cylinder lifting module is arranged below the weighing module. The weighing module is lifted and weighed; the weighing module corrects according to the measured value; the weighing module falls back; and the transportation module transports the weights to return, and high-precision and high-efficiency unmanned weighing calibration is realized through a full-closed-loop control process of automatic transportation, lifting, calibration and resetting.

Description

Technical Field

[0001] The present invention relates to the technical field of P / F line conveying systems, and particularly to a weighing adjustment device and a weighing method for a P / F line conveying system. Background Art

[0002] In the field of wire rolling production, especially in a wire rolling production line, the rolled steel wire is usually collected in a coiled form. Such wire products must be weighed before entering the warehousing and logistics links. However, in actual production, it is found that the weighing module is affected by multiple factors (such as mechanical wear, sensor zero drift, environmental temperature and humidity changes, etc.) in a continuous operation environment, and its measurement accuracy will show a progressive decay. Traditional calibration requires manual handling of standard weights to the weighing position, which is cumbersome and inefficient. The existing transportation module lacks a precise positioning mechanism, which easily causes the weights to be placed offset, affecting the calibration accuracy. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a weighing adjustment device and a weighing method for a P / F line conveying system.

[0004] To achieve the above object, the present invention provides the following technical solutions: A weighing adjustment device for a P / F line conveying system, comprising a transportation module, a transportation track, an induction switch, an induction plate, a weight, a weighing module, a hydraulic cylinder lifting module, and a support frame; The transportation track is composed of two parallel transportation tracks. The transportation module is arranged on both transportation tracks. The induction plate is arranged on the transportation module. The support frame is arranged on the top of the transportation module. The support frames on the two transportation modules are arranged opposite to each other, and the two support frames jointly support the weight; Induction switches are arranged at both ends of the two transportation tracks. The weighing module is located between the two transportation tracks. The weighing module and the two induction switches at one end of the two transportation tracks are on the same straight line. A hydraulic cylinder lifting module is arranged below the weighing module.

[0005] Preferably, buffer modules are arranged on the inner sides of both ends of the two transportation tracks. The buffer modules and the induction switches at both ends of the transportation track are on the same longitudinal axis.

[0006] The present invention also provides a weighing method for a weighing adjustment device of a P / F line conveying system, comprising the following steps: S1. When correcting the weighing module, the two transportation modules carry the weights and transport forward on the transportation track. When the induction switch senses the induction plate on the transportation module, the transportation module stops; S2. Control the hydraulic cylinder lifting module to lift the weighing module, the weight falls on the weighing module, and the weight measurement value of the weight is obtained; S3. Upload the measured weight value of the weight, and adjust the weighing correction value according to the measured weight value of the weight and the actual weight value of the weight. The weighing correction value is used to correct the weight measurement value to obtain an accurate measurement value; S4. Control the hydraulic cylinder lifting module to drive the weighing module to fall back, and the weight falls on the support frame; S5. The transport module carries the weight and returns on the transport track. When the in-situ induction switch senses the induction plate on the transport module, the transport module stops.

[0007] Compared with the prior art, the beneficial effects of the present invention are: Through the linkage control of the transport module, the induction switch and the hydraulic cylinder lifting module, the automatic transportation, precise positioning, lifting calibration and reset of the weight are realized, significantly reducing the labor cost and operation risk, especially suitable for the heavy weight scenario. By setting the double transport track and the symmetrical support frame design, combined with the precise positioning of the induction switch, it is ensured that the weight is placed in the center on the weighing module, eliminating the measurement error caused by offset. The hydraulic cylinder lifting module can provide stable lifting power, avoiding the impact vibration when the weight contacts the weighing module, ensuring the stability of the measurement data, and significantly improving the calibration accuracy. The weighing correction value is automatically generated by the real-time comparison of the measured value and the actual value, avoiding the manual recording error, and improving the standardization and traceability of the calibration process. The specifications of the weight can be flexibly replaced, supporting multi-range calibration requirements, with strong scalability. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is the front view of the layout structure of the weighing adjustment device of the P / F line conveying system of the present invention; Figure 2 It is the side view of the layout structure of the weighing adjustment device of the P / F line conveying system of the present invention; Figure 3 It is the top view of the layout structure of the weighing adjustment device of the P / F line conveying system of the present invention; Figure 4 It is the flowchart of the weighing method of the weighing adjustment device of the P / F line conveying system of the present invention.

[0009] In the figure: 1. Transport module; 2. Buffer module; 3. Transport track; 4. Induction switch; 5. Induction plate; 6. Weight; 7. Weighing module; 8. Hydraulic cylinder lifting module; 9. Support frame. DETAILED DESCRIPTION OF THE INVENTION

[0010] The following will detail various exemplary embodiments, features and aspects of the present disclosure with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0011] As used herein, the term "exemplary" means "serving as an example, embodiment, or illustration". Any embodiment described as "exemplary" herein need not be construed as superior to or better than other embodiments.

[0012] In addition, for a better illustration of the present disclosure, numerous specific details are given in the following detailed description. Those skilled in the art should understand that the present disclosure can be implemented without some specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art are not described in detail so as to highlight the gist of the present disclosure.

[0013] Please refer to Figures 1 - 3 As shown, a weighing adjustment device for a P / F line conveying system includes a transportation module 1, a transportation track 3, an induction switch 4, an induction plate 5, a weight 6, a weighing module 7, a hydraulic cylinder lifting module 8, and a support frame 9; The transportation track 3 is composed of two parallel transportation tracks 3. The transportation module 1 is arranged on both transportation tracks 3. The induction plate 5 is arranged on the transportation module 1. The support frame 9 is arranged on the top of the transportation module 1. The support frames 9 on the two transportation modules 1 are arranged oppositely, and the two support frames 9 jointly support the weight 6; Induction switches 4 are arranged at both ends of the two transportation tracks 3. The weighing module 7 is located between the two transportation tracks 3. The weighing module 7 and the two induction switches 4 at one end of the two transportation tracks 3 are on the same straight line. A hydraulic cylinder lifting module 8 is arranged below the weighing module 7; Preferably, buffer modules 2 are arranged on the inner sides of both ends of the two transportation tracks 3. The buffer modules 2 and the induction switches 4 at both ends of the transportation track 3 are on the same longitudinal axis. By arranging the buffer modules 2, when the weight is transported to the end point, the impact force can be reduced to prevent the track from deforming or the sensor from being damaged, and the transportation module 1 can also be prevented from rushing out of the track 3.

[0014] Refer to Figure 4 As shown, the present invention also provides a weighing method for a weighing adjustment device of a P / F line conveying system, including the following steps: S1. When calibrating the weighing module 7, the two transportation modules 1 carry the weight 6 and transport forward on the transportation track 3. When the induction switch 4 senses the induction plate 5 on the transportation module 1, the transportation module 1 stops. After the PLC receives the calibration instruction (manually triggered or timed triggered), the PLC controls the motor of the transportation module 1 to rotate forward, driving the weight 6 to move along the track towards the weighing position. When the induction switch 4 detects the induction plate 5 on the transportation module 1, the trigger signal is input into the PLC, and the motor power supply is immediately cut off and braked to ensure accurate stop.

[0015] S2. Control the hydraulic cylinder lifting module 8 to lift the weighing module 7, so that the weight 6 falls on the weighing module 7, and obtain the weight measurement value of the weight 6. The PLC outputs a signal to open the rising valve of the hydraulic cylinder lifting module 8, and the hydraulic cylinder slowly jacks up the weighing module 7 to a preset height, so that the weight 6 disengages from the support frame 9 and is completely borne on the weighing module 7.

[0016] S3. Upload the measured weight measurement value of the weight 6, and adjust the weighing correction value according to the measured weight measurement value of the weight 6 and the actual weight value of the weight 6. The weighing correction value is used to correct the weight measurement value to obtain an accurate measurement value. The PLC reads the real-time weight measurement value of the weighing module 7 through the analog input module, compares it with the actual calibration value of the weight 6, and the PLC automatically calculates the correction coefficient and updates it to the weighing system to achieve dynamic calibration.

[0017] S4. Control the hydraulic cylinder lifting module 8 to drive the weighing module 7 to fall back, and the weight 6 falls on the support frame 9. After calibration is completed, the PLC controls the hydraulic cylinder to descend, and the weighing module 7 resets to the initial position, and the weight 6 falls back onto the support frame 9 again.

[0018] S5. The transportation module 1 carries the weight 6 and returns on the transportation track 3. When the induction switch 4 in place senses the induction plate 5 on the transportation module 1, the transportation module 1 stops. The PLC switches the motor of the transportation module 1 to reverse, and the transportation module 1 carries the weight 6 back to the original position until the original induction switch 4 triggers a stop signal.

[0019] The working principle of the present invention: After the PLC receives a calibration instruction (triggered periodically or manually), it starts the drive motor of the transportation module 1, drives the weight 6 to move along the parallel double transportation track 3 towards the weighing position. The induction plate 5 on the transportation device 1 moves closer to the induction switch 4 at the end of the track (such as a photoelectric sensor or a magnetic induction switch), triggering a non-contact signal. The PLC immediately cuts off the power supply of the motor and starts the braking device to ensure that the transportation module 1 accurately stops at the target position. At the same time, the buffer module 2 absorbs the inertial impact to avoid mechanical damage; After the PLC confirms that the transport module 1 has stopped correctly, it controls the lifting valve of the hydraulic cylinder lifting module 8 to open. The hydraulic oil pushes the piston rod to lift the weighing module 7 at a constant rate. During the rising process of the weighing module 7, its bearing surface gradually contacts the bottom of the weight 6 and continues to lift until the weight 6 is completely separated from the support frame 9, eliminating the measurement interference caused by mechanical clearance. After the hydraulic system maintains a stable lifting height, the pressure sensor or weighing module of the weighing module 7 collects the real-time weight signal of the weight 6. After the data is converted by the PLC analog input module, it is transmitted to the processor for filtering and denoising to ensure stable and reliable measurement values. The PLC compares the measured value of the weighing module 7 with the preset calibration value of the weight 6 (such as 500kg) and calculates the error value. The PLC automatically generates a correction coefficient based on the error value. The correction coefficient is written to the control system of the weighing module 7 through the communication interface, and its measurement algorithm is adjusted in real time to ensure the accuracy of subsequent weighing results. The calibration data (time, measurement value, correction value, etc.) is synchronously stored in the PLC or host computer database to support traceability and report generation. After the calibration is completed, the PLC controls the lowering valve of the hydraulic cylinder lifting module 8 to open, the hydraulic oil slowly flows back, the weighing module 7 falls back to the initial position smoothly, and the weight 6 falls back to the support frame 9. The PLC switches the motor of the transport module 1 to reverse and drives the weight 6 to return to its original position along the track. When the transport module 1 triggers the in-situ sensing switch 4, the motor stops and locks, completing a single calibration cycle.

[0020] While various embodiments of the present disclosure have been described above, the foregoing description is intended to be illustrative, non-exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or technological improvements in the marketplace, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A weighing adjustment device for a P / F line conveying system, characterized in that: It includes a transportation module (1), a transportation track (3), an induction switch (4), an induction plate (5), a weight (6), a weighing module (7), a hydraulic cylinder lifting module (8), and a support frame (9); The transportation track (3) consists of two parallel transportation tracks (3). The transportation module (1) is provided on both of the two transportation tracks (3). The induction plate (5) is provided on the transportation module (1). The support frame (9) is provided on the top of the transportation module (1). The support frames (9) on the two transportation modules (1) are arranged oppositely, and the two support frames (9) jointly support the weight (6); Induction switches (4) are provided at both ends of the two transportation tracks (3). The weighing module (7) is located between the two transportation tracks (3). The weighing module (7) and the two induction switches (4) at one end of the two transportation tracks (3) are on the same straight line. The hydraulic cylinder lifting module (8) is provided below the weighing module (7).

2. The weighing adjustment device of a P / F line conveying system according to claim 1, wherein: Buffer modules (2) are provided on the inner sides of both ends of the two transportation tracks (3). The buffer modules (2) and the induction switches (4) at both ends of the transportation track (3) are on the same longitudinal axis.

3. A weighing method for a weighing adjustment device of a P / F line conveying system, characterized in that: A weighing adjustment device for a P / F line conveying system according to any one of claims 1 to 2, comprising the following steps: S1. When calibrating the weighing module (7), the two transportation modules (1) carry the weight (6) and move forward on the transportation track (3). When the induction switch (4) senses the induction plate (5) on the transportation module (1), the transportation module (1) stops; S2. Control the hydraulic cylinder lifting module (8) to lift the weighing module (7), the weight (6) falls on the weighing module (7), and obtain the weight measurement value of the weight; S3. Upload the measured weight measurement value of the weight (6), and adjust the weighing correction value according to the measured weight measurement value of the weight (6) and the actual weight value of the weight (6). The weighing correction value is used to correct the weight measurement value to obtain an accurate measurement value; S4. Control the hydraulic cylinder lifting module (8) to drive the weighing module (7) to fall back, and the weight (6) falls on the support frame (9); S5. The transportation module (1) carries the weight (6) and returns on the transportation track (3). When the induction switch (4) in the original position senses the induction plate (5) on the transportation module (1), the transportation module (1) stops.

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