A full-automatic online calibration device and method for a sheet shape meter or a sheet shape roller

Abstract

The application provides a full-automatic online calibration device and method for a sheet shape instrument or a sheet shape roller. The device comprises two calibration supports; the two calibrations are respectively arranged on the left and right sides of the sheet shape instrument or the sheet shape roller in the axial direction of the sheet shape instrument or the sheet shape roller; the left and right two calibration supports are connected through a calibration lever; a servo motor and a signal indicator are arranged on the outer side of the calibration support; a calibration wheel is arranged above the sheet shape instrument or the sheet shape roller; a calibration lever is connected to the left and right sides of the calibration wheel; a calibration weight is connected to the lower end of the rear end of the calibration lever; a nut clamp is connected to the upper end of the front end of the calibration lever; a calibration lever is fixedly penetrated between the calibration lever and the nut clamp; a micro motor is arranged on the front part of the calibration lever; a steel wire rope is connected to the calibration weight after passing through the micro motor and the upper pulley of the nut clamp in sequence; the application meets the requirement of the rapid calibration of the sheet shape roller of the cold-rolled strip production line and can provide a set of rapid calibration equipment and a matching calibration system.

Description

Technical Field

[0001] The present invention relates to the field of cold-rolled strip shape measurement and control technology, and in particular to a fully automatic online calibration device and method for a shape meter or a shape roller. Background Art

[0002] The flatness meter (flatness roller) is the core equipment for closed-loop flatness control, and its detection accuracy determines the accuracy of flatness control. However, during long-term operation, the internal sensor of the flatness roller will inevitably experience changes in prestress when subjected to alternating loads. Especially for segmented flatness rollers, surface contaminants often penetrate the roller surface, affecting flatness detection accuracy. In such cases, the flatness roller needs to be calibrated to maximize the current flatness detection accuracy and avoid large deviations in flatness control.

[0003] There are two main traditional calibration methods. One is offline calibration, which is to place the plate roller after it is taken off the machine on the calibration platform for calibration or calibration. This method is more accurate, but the disassembly and assembly is troublesome, takes a long time, and affects the production process; the other is online calibration, in which the plate roller does not need to be taken off the machine. Only during the shutdown period of the rolling mill, the calibration device is placed on the plate roller bearing seat for online calibration. However, this method is cumbersome to operate manually, the space inside the machine is narrow, and the calibration position needs to be adjusted repeatedly by manual labor, which is inconvenient and unsafe. The calibration position is also prone to deviation, and improper adjustment can easily affect the calibration accuracy. Summary of the Invention

[0004] In response to the aforementioned technical problem of inaccurate calibration of existing online calibration methods for shape meters (shape rollers), a fully automatic online calibration device and method for shape meters or shape rollers is provided. The present invention designs a fully automatic online calibration device for a contact-type shape meter (shape roller) to achieve fully automatic calibration. During use, it satisfies high-precision automatic positioning, precisely determines the zero position and maximum amplitude position, and improves calibration accuracy. At the same time, it eliminates the need for manual intervention and utilizes a calibration system to implement one-button, fully automatic calibration. This is fast, efficient, and labor-saving, saving calibration time and allowing for rapid resumption of production.

[0005] The technical means adopted in the present invention are as follows:

[0006] A fully automatic online calibration device for a shape meter or shape roller, the fully automatic online calibration device being arranged on a fixing device for the shape meter or shape roller, and comprising two calibration supports; with the axis direction of the shape meter or shape roller being the left and right, the two calibration supports being arranged on the left and right sides of the support shape meter or shape roller, respectively; the left and right calibration supports being connected by a calibration bar, and a servo motor and a signal device being arranged on the outer sides of the calibration supports;

[0007] A calibration wheel is provided just above the shape meter or the shape roller, and calibration rods are connected to the left and right sides of the calibration wheel, a calibration weight is connected to the lower rear end of the calibration rod, a nut fixture is connected to the upper front end of the calibration rod, a calibration bar is fixed through the calibration rod and the nut fixture, a micro motor is provided at the front of the calibration rod, and a steel wire rope passes through the micro motor and the upper pulley of the nut fixture in sequence and is connected to the calibration weight;

[0008] The calibration support, micro motor, calibration bar and nut fixture are arranged in front of the plate shape meter or the plate shape roller, and the calibration weight is arranged behind the plate shape meter or the plate shape roller.

[0009] Furthermore, the plate profile meter or plate profile roller fixing device includes a calibration platform, on which two lower bearing seats and a variable frequency motor are provided, the upper part of the lower bearing seat is connected to the lower part of the upper bearing seat, a plate profile meter or plate profile roller is fixed between the upper bearing seat and the lower bearing seat, the variable frequency motor is connected to the plate profile meter or plate profile roller, and the calibration support is fixed to the upper part of the upper bearing seat.

[0010] Furthermore, the signal device is electrically connected to the wireless transceiver, the micro motor and the servo motor, and the wireless transceiver is wirelessly connected to the industrial computer.

[0011] Furthermore, the calibration rod is a calibration screw or a calibration rod with a graduated groove.

[0012] Furthermore, the calibration weight is fixed on the calibration rod through a nut, or is hung on the calibration rod through a U-shaped groove.

[0013] Furthermore, the outer circle of the calibration wheel is inlaid with a nylon or copper sleeve.

[0014] The present invention also provides a fully automatic online calibration method for a shape meter or a shape roller, which is implemented based on any one of the above-mentioned fully automatic online calibration devices for a shape meter or a shape roller, and comprises the following steps:

[0015] S1. Start the calibration signal device and automatically start the zero calibration. The micro motor pulls up the calibration rod through the wire rope so that the calibration wheel does not contact the plate roller. The frequency conversion motor is started and drives the plate roller to rotate to the set speed.

[0016] S2. After the zero position is determined, the calibration process begins. The servo motor drives the calibration screw to rotate, so that the calibration wheel, calibration rod, and calibration weight are on the first channel of the plate roller. At this time, the micro motor releases the wire rope and places the calibration wheel on the plate roller. The wire rope is no longer stressed.

[0017] S3. After the placement is ready, the first channel of the plate roller starts sampling and the calibration process of the first channel is completed; after the calibration of the first channel is completed, the micro motor pulls up the calibration rod through the wire rope to make the calibration wheel leave the surface of the plate roller;

[0018] S4, the servo motor drives the calibration screw to move the calibration wheel, calibration rod, and calibration weight to the next channel to complete the calibration of the next channel;

[0019] S5. Repeat S4 until all detection channels of the plate roller are calibrated. Lift the calibration rod so that the calibration wheel does not contact the surface of the plate roller. The calibration is completed.

[0020] Furthermore, when the plate roller signal is abnormal, during the calibration process of a certain channel, the calibration system is used to specifically calibrate the signal of a certain channel; in the calibration system, the signal of a certain calibration channel number is transmitted to the servo motor through the signal device, driving the calibration screw to automatically move the calibration rod to the predetermined position, completing the calibration process of the corresponding channel.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] The complete calibration device provided by the present invention can be quickly disassembled and assembled, and a servo motor is used to drive the calibration screw, which drives the calibration rod, calibration wheel and calibration weight to the calibration position, and automatically calibrates to zero and accurately positions; a micro motor is used to pull up or lower the calibration rod through a wire rope to ensure that the calibration wheel does not contact the surface of the plate roller during movement, and the calibration wheel contacts the surface of the plate roller during calibration to avoid scratches on the plate roller; a signal device is used to send instructions to the servo motor and the micro motor to meet the interlocking of the above process and realize full automatic operation, and communicate with the plate calibration system of the industrial computer in a wireless manner to complete the automatic calibration process with one click, replacing traditional manual calibration work, which is accurate, efficient, safe and reliable, and saves worry, trouble and labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 It is the front view of the present invention;

[0025] Figure 2 is a side view of the present invention;

[0026] Figure 3 This is a diagram of an alternative calibration beam according to the present invention.

[0027] In the figure: 1. Frequency conversion motor; 2. Servo motor; 3. Calibration support; 4. Upper bearing seat; 5. Lower bearing seat; 6. Calibration bar; 7. Nut fixture; 8. Wire rope; 9. Calibration wheel; 10. Calibration rod; 11. Micro motor; 12. Calibration weight; 13. Flatness meter or flatness roller; 14. Signal device; 15. Wireless transceiver; 16. Calibration platform. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0032] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0033] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0034] like Figure 1-3 As shown, the present invention provides a fully automatic online calibration device for a shape meter or a shape roller, wherein the fully automatic online calibration device is arranged on a fixing device of the shape meter or the shape roller, and the fully automatic online calibration device includes two calibration supports 3; with the axial direction of the shape meter or the shape roller 13 as the left and right, the two calibration supports 3 are respectively arranged on the left and right sides of the support shape meter or the shape roller 13; the left and right calibration supports 3 are connected by a calibration bar 6, and a servo motor 2 and a signal device 14 are arranged on the outside of the calibration support 3; the signal device 14 is electrically connected to the wireless transceiver 15, the micro motor 11 and the servo motor 2, and the wireless transceiver 15 is wirelessly connected to the industrial computer.

[0035] A calibration wheel 9 is provided just above the plate shape meter or plate shape roller 13, and a calibration rod 10 is connected to the left and right sides of the calibration wheel 9, a calibration weight 12 is connected to the lower rear end of the calibration rod 10, and a nut fixture 7 is connected to the upper front end of the calibration rod 10. A calibration bar 6 is fixed between the calibration rod 10 and the nut fixture 7, and a micro motor 11 is provided at the front of the calibration rod 10. The wire rope 8 passes through the micro motor 11 and the upper pulley of the nut fixture 7 in sequence and is connected to the calibration weight 12;

[0036] The calibration support 3 , micro motor 11 , calibration bar 6 and nut fixture 7 are arranged in front of the plate shape meter or plate shape roller 13 , and the calibration weight 12 is arranged behind the plate shape meter or plate shape roller 13 .

[0037] The plate profile meter or plate profile roller fixing device includes a calibration platform 16, on which two lower bearing seats 5 and a variable frequency motor 1 are provided. The upper part of the lower bearing seat 5 is connected to the lower part of the upper bearing seat 4. A plate profile meter or plate profile roller 13 is fixed between the upper bearing seat 4 and the lower bearing seat 5. The variable frequency motor 1 is connected to the plate profile meter or plate profile roller 13, and the calibration support 3 is fixed to the upper part of the upper bearing seat 4.

[0038] A servo motor is installed on one side of the calibration device, and a signal processor is installed on the other side, or they can be installed on the same side; the entire calibration device is placed on a bearing seat for easy installation and maintenance; the servo motor is connected to the calibration screw and nut fixture, and is fixed on the calibration bracket. The calibration screw drives the nut fixture to move laterally, and automatically adjusts the distance according to the set position to implement precise positioning; the micro motor can automatically pull up or lower the calibration rod through the wire rope, so that the calibration wheel on the calibration rod is separated from or contacts the surface of the plate roller; the signal device sends instructions to the servo motor and micro motor, and sends the calibration signal to the industrial computer wirelessly. Combined with the plate calibration system, the fully automatic calibration process of the plate roller is completed.

[0039] On the calibration bar 6, the calibration rod 10 is fixed by the nut clamp 7. When the calibration bar 6 rotates, the calibration wheel 9, calibration rod 10, micro motor 11 and calibration weight 12 are driven to move by the nut clamp 7; all instructions are issued by the signal device 14 and communicate with the industrial computer through the wireless transceiver 15, and the plate shape calibration system is used to realize fully automatic online calibration.

[0040] On the calibration rod 10, the micro motor 11 is used to pull the wire rope 8. When not calibrating, the calibration rod 10 drives the calibration wheel 9 and the calibration weight 12 to lift up, ensuring that the calibration wheel 9 does not contact the surface of the plate roller 13. During calibration, the micro motor 11 is used to loosen the wire rope 8 to ensure that the calibration wheel is placed on the plate roller 13 and the wire rope is not subjected to any force.

[0041] The calibration rod 6 can also be replaced by a calibration rod with a scale groove to achieve manual positioning and calibration. The calibration screw and the calibration rod can also be placed on the calibration device at the same time to meet both manual and automatic calibration methods.

[0042] By utilizing the lever principle, the weight of the calibration weight is converted according to the radial pressure on the plate-shaped roller. The calibration weight 12 is fixed to the calibration rod 10 through a nut, or is hung on the calibration rod 10 through a U-shaped groove.

[0043] According to the setting condition of the calibration system, the calibration device can calibrate each detection channel of the plate-shaped roller in turn from one side to the other side, or can be automatically moved to a certain detection channel for calibration according to the setting instruction as required.

[0044] The calibration screw rod can also be replaced by a calibration light rod with a groove for manual positioning calibration; or a calibration light rod can be added on the basis of the calibration screw rod to meet the requirements of automatic and manual calibration modes; all of the above are within the protection scope of the present patent.

[0045] The outer circle of the calibration wheel 9 is embedded with nylon or copper sleeve to avoid scratching the surface of the plate-shaped roller when contacting.

[0046] A full-automatic online calibration method of a plate shape instrument or a plate-shaped roller is realized based on any one of the full-automatic online calibration devices of the plate shape instrument or the plate-shaped roller, and comprises the following steps:

[0047] S1, the calibration signaler 14 is started to automatically start zero correction, the micro motor 11 pulls up the calibration rod 10 through the steel wire rope 8 to make the calibration wheel 9 not contact the plate-shaped roller 13, the variable frequency motor 1 is started, and the variable frequency motor 1 drives the plate-shaped roller 13 to rotate to a set speed;

[0048] S2, after the zero position is determined, the calibration process starts, the calibration screw rod is driven to rotate by the servo motor 2 to make the calibration wheel 9, the calibration rod 10 and the calibration weight 12 be on the first channel of the plate-shaped roller 13, at this time, the micro motor 11 releases the steel wire rope 8 to place the calibration wheel 9 on the plate-shaped roller 13, and the steel wire rope 8 is no longer forced;

[0049] S3, after the placement is ready, the first channel of the plate-shaped roller 13 starts sampling, and the calibration process of the first channel is completed; after the calibration of the first channel is completed, the micro motor 11 pulls up the calibration rod 10 through the steel wire rope 8 to make the calibration wheel 9 leave the surface of the plate-shaped roller 13;

[0050] S4, the calibration screw rod is driven by the servo motor 2 to move the calibration wheel 9, the calibration rod 10 and the calibration weight 12 to the next channel to complete the calibration of the next channel;

[0051] S5, S4 is repeated until all detection channels of the plate-shaped roller 13 are calibrated, the calibration rod 10 is lifted to make the calibration wheel 9 not contact the surface of the plate-shaped roller 13, and the calibration is completed.

[0052] When the signal of the plate-shaped roller 13 appears abnormity, the signal of a certain channel is calibrated during the calibration process of the channel through the calibration system; the calibration system belongs to a certain calibration channel number, the signaler 14 transmits an instruction to the servo motor 2 to drive the calibration screw rod to automatically move the calibration rod 10 to a certain position to complete the calibration process of the corresponding channel.

[0053] The entire assembly and disassembly process is very convenient. The entire calibration device is fixed to the bearing seat via the calibration support 3. After calibration, the entire device can be lifted away quickly and conveniently by loosening the screws. The calibration support can be precisely positioned with the bearing seat by setting a positioning block or positioning pin to minimize calibration deviation.

[0054] This device is simple to install, easy to calibrate, and automatically aligns the flatness detection channel, providing accurate positioning and high calibration precision. It is ideally suited for online automatic calibration of all contact flatness gauges. Similar calibration processes are readily achievable and fall within the scope of this patent.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fully automatic online calibration method for a shape meter or a shape roller, characterized by: The invention comprises a fully automatic online calibration device for a shape meter or a shape roller, wherein the fully automatic online calibration device is arranged on a shape meter or a shape roller fixing device, and the fully automatic online calibration device comprises two calibration supports (3); with the axis direction of the shape meter or the shape roller (13) being the left and right, the two calibration supports (3) are respectively arranged on the left and right sides of the shape meter or the shape roller (13); the left and right calibration supports (3) are connected by a calibration bar (6), and a servo motor (2) and a signal device (14) are arranged on the outside of the calibration support (3); A calibration wheel (9) is provided just above the plate shape meter or the plate shape roller (13), and the left and right sides of the calibration wheel (9) are connected to calibration rods (10), the lower rear end of the calibration rod (10) is connected to a calibration weight (12), the upper front end of the calibration rod (10) is connected to a nut fixture (7), a calibration bar (6) is fixed through the calibration rod (10) and the nut fixture (7), a micro motor (11) is provided at the front of the calibration rod (10), and the wire rope (8) passes through the micro motor (11) and the upper pulley of the nut fixture (7) in sequence and is connected to the calibration weight (12); The calibration support (3), micro motor (11), calibration bar (6) and nut fixture (7) are arranged in front of the plate shape meter or plate shape roller (13), and the calibration weight (12) is arranged behind the plate shape meter or plate shape roller (13); The plate profile meter or plate profile roller fixing device comprises a calibration platform (16), two lower bearing seats (5) and a variable frequency motor (1) are provided on the calibration platform (16), the upper portion of the lower bearing seat (5) is connected to the lower portion of the upper bearing seat (4), a plate profile meter or plate profile roller (13) is fixed between the upper bearing seat (4) and the lower bearing seat (5), the variable frequency motor (1) is connected to the plate profile meter or plate profile roller (13), and the calibration support (3) is fixed to the upper portion of the upper bearing seat (4); The fully automatic online calibration method for a shape meter or a shape roller comprises the following steps: S1, start the calibration signal device (14), automatically start the zero calibration, the micro motor (11) pulls up the calibration rod (10) through the wire rope (8), so that the calibration wheel (9) does not contact the plate roller (13), start the frequency conversion motor (1), and the frequency conversion motor (1) drives the plate roller (13) to rotate to the set speed; S2. After the zero position is determined, the calibration process begins. The servo motor (2) drives the calibration screw to rotate, so that the calibration wheel (9), the calibration rod (10), and the calibration weight (12) are on the first channel of the plate-shaped roller (13). At this time, the micro motor (11) releases the wire rope (8), places the calibration wheel (9) on the plate-shaped roller (13), and the wire rope (8) is no longer stressed. S3. After the placement is ready, the first channel of the plate-shaped roller (13) starts sampling, completing the calibration process of the first channel; after the calibration of the first channel is completed, the micro motor (11) pulls up the calibration rod (10) through the wire rope (8), so that the calibration wheel (9) leaves the surface of the plate-shaped roller (13); S4, the servo motor (2) drives the calibration screw to move the calibration wheel (9), calibration rod (10), and calibration weight (12) to the next channel to complete the calibration of the next channel; S5. Repeat S4 until all detection channels of the plate-shaped roller (13) are calibrated. Then, lift the calibration rod (10) so that the calibration wheel (9) does not contact the surface of the plate-shaped roller (13). The calibration is completed.

2. The fully automatic online calibration method for a shape meter or a shape roller according to claim 1, characterized in that: When the signal of the plate roller (13) is abnormal, during the calibration process of a certain channel, the signal of a certain channel is calibrated specifically through the calibration system; in the calibration system, a certain calibration channel number is transmitted through the signal device (14) to the servo motor (2), driving the calibration screw to automatically move the calibration rod (10) to a predetermined position, thereby completing the calibration process of the corresponding channel.

3. The fully automatic online calibration method for a shape meter or a shape roller according to claim 1, characterized in that: The signal device (14) is electrically connected to the wireless transceiver (15), the micro motor (11) and the servo motor (2), and the wireless transceiver (15) is wirelessly connected to the industrial computer.

4. The fully automatic online calibration method for a shape meter or a shape roller according to claim 1, characterized in that: The calibration rod (6) is a calibration screw or a calibration rod with a graduated groove.

5. The fully automatic online calibration method for a shape meter or a shape roller according to claim 1, characterized in that: The calibration weight (12) is fixed to the calibration rod (10) via a nut, or is hung on the calibration rod (10) via a U-shaped groove.

6. The fully automatic online calibration method for a shape meter or a shape roller according to claim 1, characterized in that: The outer circle of the calibration wheel (9) is inlaid with a nylon or copper sleeve.

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