Belt scale self-calibration real-time error correction device

Abstract

The utility model discloses a kind of belt scale self-calibration real-time error correction device, it is related to belt scale self-calibration real-time error correction device technical field, including lathe and drive assembly, the inside wall of the lathe is provided with hole, the middle part of the hole is fixedly connected with electric carrier roller, the surface of the electric carrier roller is engagedly connected with conveyer belt, the bottom of the lathe is fixedly connected with weighing bridge, the top of the weighing bridge is fixedly connected with four weighing sensors, the side of the lathe is fixedly connected with extension plate, the both sides of the extension plate top are fixedly connected with fixed platform, recess is arranged in the inside of the fixed platform upper end, the middle part of the recess is fixedly connected with drive assembly;The utility model is cooperatively arranged by double servo motor and ball screw, steel wire rope, when personnel operating device is used, the accurate driving of weight horizontal direction and vertical direction can be realized, loading position repeatability is high, calibration error is significantly reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of belt scale self-calibration real-time error correction device, specifically a belt scale self-calibration real-time error correction device. Background Technology

[0002] The belt scale self-calibration real-time error correction device is an automated device that is installed on the belt scale. It requires no frequent manual intervention and can automatically carry out the calibration process through built-in standard weights and dynamic simulated loads. At the same time, it monitors the belt scale's measurement data in real time and immediately compensates for and corrects any deviations found.

[0003] An existing belt scale self-calibration real-time error correction device, when in use, (1) The movement and lifting of the calibration weights mostly rely on manual operation or simple drive structure, which has problems such as low positioning accuracy and poor loading stability, which can easily lead to large calibration errors. (2) The lack of an integrated automatic control and zero-point tracking coordination mechanism means that zero-point drift cannot be corrected in real time during idling, and the switching efficiency between calibration process and normal measurement is low, affecting production continuity.

[0004] To address the aforementioned problems, this utility model provides a self-calibration real-time error correction device for belt scales. Utility Model Content

[0005] The purpose of this invention is to provide a self-calibration real-time error correction device for belt scales. This invention achieves precise positioning and loading of weights through dual servo motor drive, and combines multi-point weighing, zero-point tracking and intelligent control to improve calibration accuracy and automation, thereby solving the problems of large calibration errors, cumbersome operation and inability to correct zero drift in real time in existing devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a belt scale self-calibration real-time error correction device, comprising a machine tool and a drive assembly. The inner wall of the machine tool has a hole, and an electric idler roller is fixedly connected to the center of the hole. A conveyor belt is meshed with the surface of the electric idler roller. A weighing bridge is fixedly connected to the bottom of the machine tool, and four weighing sensors are fixedly connected to the top of the weighing bridge. An extension plate is fixedly connected to one side of the machine tool, and fixed platforms are fixedly connected to both sides of the top of the extension plate. A groove is formed inside the upper part of the fixed platform, and a drive assembly is fixedly connected to the center of the groove. A speed sensor is fixedly connected to the upper part of the inner wall of the machine tool.

[0007] Furthermore, the driving component includes a first servo motor, one end of which is fixedly connected to a first transmission rod, and one end of which is fixedly connected to a ball screw. The weight is moved laterally through high-precision transmission to ensure that the weight is accurately aligned with the weighing area.

[0008] Furthermore, a nut is engaged with the surface of the ball screw, a connecting rod is fixedly connected to one side of the nut surface, and a support plate is fixedly connected to one end of the connecting rod, thereby converting the rotational motion of the ball screw into the linear motion of the support plate and realizing the function of stabilizing the lateral position adjustment of the weight.

[0009] Furthermore, a mounting groove is provided in the middle of one side of the support plate. A second servo motor is fixedly connected to the middle of the mounting groove. A second transmission rod is fixedly connected to one end of the second servo motor. A rotating wheel is fixedly connected to one end of the second transmission rod. A groove is provided on the surface of the rotating wheel. A lifting wire rope is fixedly connected to the middle of the groove. A weight is fixedly connected to one end of the lifting wire rope. A rubber pad is fixedly connected to the bottom of the weight. The vertical lifting and lowering of the weight is controlled by the raising and lowering of the wire rope. The rubber pad buffers the impact of the loading and ensures the stable application of the standard load.

[0010] Furthermore, a limiting platform is fixedly connected to one side of the top of the machine tool, and a bearing is fixedly connected to the middle of the limiting platform. The bearing is fixedly connected to one end of the ball screw to provide limiting support for the end of the ball screw, reduce radial sway during transmission, and improve lateral movement accuracy.

[0011] Furthermore, support legs are fixedly connected to the four feet at the bottom of the weighing bridge, and the zero-point tracking device body is fixedly connected to the middle of the fixed platform on one side of the top of the extension plate. The support legs stabilize the load-bearing structure, and the zero-point tracking device corrects the zero-point drift when the belt is idling in real time, ensuring the accuracy of the measurement benchmark.

[0012] Furthermore, a control module is fixedly connected to the middle of the fixing platform on the other side of the top of the extension plate, and an operation panel is fixedly connected to one side of the fixing platform on the other side of the top of the extension plate. The control module links various components to realize an automated calibration process, and the operation panel facilitates manual setting of parameters and monitoring of status.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a self-calibration real-time error correction device for belt scales. (1) By coordinating the dual servo motors with the ball screw and wire rope, the weight can be precisely driven in the horizontal and vertical directions when the device is operated by personnel. The loading position repeatability is high and the calibration error is significantly reduced.

[0014] (2) By linking the control module with the zero-point tracking device and the weighing sensor, the calibration-measuring state can be automatically switched when the personnel operate the device, and the zero-point drift can be corrected in real time, reducing manual intervention and improving production continuity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the device of this utility model; Figure 2 This is a schematic diagram of the drive component structure of this utility model; Figure 3 This is a partially enlarged structural schematic diagram of the present invention; Figure 4 This is a front sectional view of the present invention. Figure 5 This is a schematic side view of the cross-sectional structure of this utility model.

[0016] In the diagram: 1. Machine tool; 2. Drive assembly; 201. First servo motor; 202. Ball screw; 203. Nut; 204. Connecting rod; 205. Support plate; 3. Electric idler roller; 4. Conveyor belt; 5. Weighing bridge; 6. Weighing sensor; 7. Extension plate; 8. Fixed platform; 9. Limiting platform; 10. Bearing; 11. Second servo motor; 12. Rotating wheel; 13. Lifting wire rope; 14. Weight; 15. Support leg; 16. Zero-point tracking device body; 17. Control module; 18. Speed ​​sensor; 19. Operation panel. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] To solve the problem of how to effectively position and adjust the technology, such as Figure 1-5 As shown, the following preferred technical solutions are provided: A belt scale self-calibration real-time error correction device includes a machine tool 1 and a drive assembly 2. The inner side wall of the machine tool 1 has a hole, and an electric idler roller 3 is fixedly connected to the middle of the hole. A conveyor belt 4 is meshed with the surface of the electric idler roller 3. A weighing bridge 5 is fixedly connected to the bottom of the machine tool 1. Four weighing sensors 6 are fixedly connected to the top of the weighing bridge 5. An extension plate 7 is fixedly connected to one side of the machine tool 1. Fixed platforms 8 are fixedly connected to both sides of the top of the extension plate 7. A groove is opened in the upper end of the fixed platform 8. The drive assembly 2 is fixedly connected to the middle of the groove. A speed sensor 18 is fixedly connected to the upper part of the inner side wall of the machine tool 1.

[0019] Specifically, when the operator uses the device, they can set the calibration cycle or trigger instant calibration through the operation panel 19. After receiving the instruction, the control module 17 will link all components to start the calibration process.

[0020] Furthermore, such as Figure 2 As shown, the following preferred technical solutions are provided: The drive assembly 2 includes a first servo motor 201, one end of which is fixedly connected to a first transmission rod, and one end of which is fixedly connected to a ball screw 202. By utilizing the high-precision speed control of the first servo motor 201 and the low-backlash transmission characteristics of the ball screw 202, the precise positioning of the weight 14 in lateral movement is achieved.

[0021] Furthermore, such as Figure 3 As shown, the following preferred technical solutions are provided: A nut 203 is engaged with the surface of the ball screw 202. A connecting rod 204 is fixedly connected to one side of the surface of the nut 203. A support plate 205 is fixedly connected to one end of the connecting rod 204. Through the meshing transmission between the nut 203 and the ball screw 202, the rotational motion is converted into the linear motion of the support plate 205, which drives the weight 14 to move smoothly above the weighing area.

[0022] Furthermore, such as Figure 5 As shown, the following preferred technical solutions are provided: A mounting groove is provided in the middle of one side of the support plate 205. A second servo motor 11 is fixedly connected to the middle of the mounting groove. A second transmission rod is fixedly connected to one end of the second servo motor 11. A rotating wheel 12 is fixedly connected to one end of the second transmission rod. A groove is provided on the surface of the rotating wheel 12. A lifting wire rope 13 is fixedly connected to the middle of the groove. A weight 14 is fixedly connected to one end of the lifting wire rope 13. A rubber pad is fixedly connected to the bottom of the weight 14. The second servo motor 11 drives the rotating wheel 12 to raise and lower the lifting wire rope 13, realizing the vertical raising and lowering of the weight 14. The rubber pad can buffer the impact force during loading and avoid damage to the conveyor belt 4.

[0023] Furthermore, such as Figure 2 As shown, the following preferred technical solutions are provided: A limiting platform 9 is fixedly connected to one side of the top of the machine tool 1. A bearing 10 is fixedly connected to the middle of the limiting platform 9. The bearing 10 is fixedly connected to one end of the ball screw 202. The bearing 10 radially constrains the end of the ball screw 202 to reduce vibration during high-speed transmission. At the same time, the limiting platform 9 can limit the movement range of the nut 203 to prevent overtravel.

[0024] Furthermore, such as Figure 4 As shown, the following preferred technical solutions are provided: Support legs 15 are fixedly connected to the four feet at the bottom of the weighing bridge 5. The zero-point tracking device body 16 is fixedly connected to the middle of the fixed platform 8 on one side of the top of the extension plate 7. The support legs 15 ensure the structural stability of the weighing bridge 5 and avoid external vibration interference with the measurement. The zero-point tracking device body 16 monitors the weight signal when the conveyor belt 4 is idling in real time and automatically corrects the zero-point offset.

[0025] Furthermore, such as Figure 1 As shown, the following preferred technical solutions are provided: A control module 17 is fixedly connected to the middle of the fixed platform 8 on the other side of the top of the extension plate 7, and an operation panel 19 is fixedly connected to one side of the fixed platform 8 on the other side of the top of the extension plate 7. The control module 17 receives signals from the weighing sensor 6, the speed sensor 18, and the zero-point tracking device body 16, calculates the error through a preset algorithm, and controls the drive component 2 to move. The operation panel 19 realizes parameter setting, status display, and manual operation functions.

[0026] Working Principle: When the device starts the calibration process, the control module 17 first confirms that the conveyor belt 4 is in an idling state and corrects the zero point through the zero-point tracking device body 16. Then, the first servo motor 201 drives the ball screw 202 to rotate, causing the support plate 205 and the weight 14 to move laterally to the preset position above the weighing sensor 6. Next, the second servo motor 11 drives the rotating wheel 12 to release the lifting steel wire rope 13, causing the weight 14 to descend and lightly press on the conveyor belt 4. The weighing sensor 6 collects the load signal and transmits it to the control module 17. After comparing it with the standard weight of the weight 14, the error is calculated and the measurement parameters are automatically corrected. After calibration, the second servo motor 11 rotates in the opposite direction to retract the steel wire rope, raising the weight 14. The first servo motor 201 drives the ball screw 202 to reset, and the weight 14 moves away from the weighing area, and the device returns to normal measurement status. The speed sensor 18 monitors the speed of the conveyor belt 4 in real time and calculates the material flow rate in conjunction with the weighing data to ensure measurement accuracy.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-calibration real-time error correction device for a belt scale, comprising a machine tool (1) and a drive assembly (2), characterized in that: The machine tool (1) has a hole on its inner side wall. An electric roller (3) is fixedly connected to the middle of the hole. A conveyor belt (4) is meshed with the surface of the electric roller (3). A weighing bridge (5) is fixedly connected to the bottom of the machine tool (1). Four weighing sensors (6) are fixedly connected to the top of the weighing bridge (5). An extension plate (7) is fixedly connected to one side of the machine tool (1). A fixed platform (8) is fixedly connected to both sides of the top of the extension plate (7). A groove is opened inside the upper end of the fixed platform (8). A drive assembly (2) is fixedly connected to the middle of the groove. A speed sensor (18) is fixedly connected to the upper side wall of the machine tool (1).

2. The belt scale self-calibration real-time error correction device according to claim 1, characterized in that: The drive assembly (2) includes a first servo motor (201), one end of which is fixedly connected to a first transmission rod, and one end of which is fixedly connected to a ball screw (202).

3. The belt scale self-calibration real-time error correction device according to claim 2, characterized in that: The ball screw (202) is connected to a nut (203) on its surface. A connecting rod (204) is fixedly connected to one side of the surface of the nut (203). A support plate (205) is fixedly connected to one end of the connecting rod (204).

4. The belt scale self-calibration real-time error correction device according to claim 3, characterized in that: A mounting groove is provided in the middle of one side of the support plate (205). A second servo motor (11) is fixedly connected to the middle of the mounting groove. A second transmission rod is fixedly connected to one end of the second servo motor (11). A rotating wheel (12) is fixedly connected to one end of the second transmission rod. A groove is provided on the surface of the rotating wheel (12). A lifting wire rope (13) is fixedly connected to the middle of the groove. A weight (14) is fixedly connected to one end of the lifting wire rope (13). A rubber pad is fixedly connected to the bottom of the weight (14).

5. The belt scale self-calibration real-time error correction device according to claim 4, characterized in that: A limiting stage (9) is fixedly connected to one side of the top of the machine tool (1), and a bearing (10) is fixedly connected to the middle of the limiting stage (9). The bearing (10) is fixedly connected to one end of the ball screw (202).

6. The belt scale self-calibration real-time error correction device according to claim 1, characterized in that: Support legs (15) are fixedly connected to the four feet at the bottom of the weighing bridge (5), and the zero-point tracking device body (16) is fixedly connected to the middle of the fixed platform (8) on one side of the top of the extension plate (7).

7. The belt scale self-calibration real-time error correction device according to claim 1, characterized in that: A control module (17) is fixedly connected to the middle of the fixed platform (8) on the other side of the top of the extension plate (7), and an operation panel (19) is fixedly connected to one side of the fixed platform (8) on the other side of the top of the extension plate (7).

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