Full-automatic online calibration device and method for strip shape instrument or strip shape roller

Abstract

The invention provides a full-automatic online calibration device and method for a plate shape instrument or a plate shape roller. The device comprises two calibration supports. The two calibrators are respectively arranged on the left side and the right side of the support plate shape instrument or the plate shape roller by taking the axis direction of the plate shape instrument or the plate shape roller as the left side and the right side; the left calibration support and the right calibration support are connected through a calibration lever, a servo motor and an annunciator are arranged on the outer side of each calibration support, a calibration wheel is arranged over the plate shape instrument or the plate shape roller, calibration rods are connected to the left side face and the right side face of the calibration wheel, and calibration weights are connected to the lower portions of the rear ends of the calibration rods. The upper portion of the front end of the calibration rod is connected with a nut clamp, a calibration lever is fixed between the calibration rod and the nut clamp in a penetrating mode, the front portion of the calibration rod is provided with a micro motor, and a steel wire rope sequentially passes through the micro motor and an upper pulley of the nut clamp and then is connected with a calibration weight. According to the invention, the rapid calibration requirement of the linear roller produced by the cold-rolled strip is met, and a set of rapid calibration equipment and a matched calibration system can be provided.

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 full-automatic online calibration device and method for a shape meter or a shape roller. Background Art

[0002] The shape meter (shape roller) is the core equipment of shape closed-loop control, and its detection accuracy determines the shape control accuracy. However, during the long-term operation of the shape roller, the internal sensor will inevitably undergo prestress changes when subjected to alternating loads. Especially for the segmented shape roller, dirt often penetrates the surface, affecting the shape detection accuracy. At this time, the shape roller needs to be calibrated to maximize the shape detection accuracy of the current situation and avoid large deviations in shape control.

[0003] There are two main traditional calibration methods. One is offline calibration, which is to place the plate-shaped roller after being taken off the machine on the calibration platform for calibration or calibration. This method is more accurate in detection, 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-shaped 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-shaped 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 operation, which is inconvenient and unsafe. The calibration position is also prone to deviations, and improper adjustment can easily affect the calibration accuracy. Summary of the invention

[0004] Based on the above-mentioned technical problem that the existing online calibration method of the shape meter (shape roller) is not accurate, a device and method for fully automatic online calibration of a shape meter or shape roller is provided. The present invention designs a contact-type shape meter (shape roller) fully automatic online calibration device, aiming to achieve fully automatic calibration. During use, it can meet the requirements of high-precision automatic positioning, accurately determine the zero position and the maximum amplitude position, and improve the calibration accuracy. At the same time, it does not require manual intervention, and uses the calibration system to implement one-button full-process automatic calibration, which is fast and efficient, saves trouble and labor, saves calibration time, and quickly resumes production.

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

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

[0007] A calibration wheel is arranged just above the plate shape meter or the plate shape roller, the left and right sides of the calibration wheel are connected with calibration rods, the lower rear end of the calibration rod is connected with calibration weights, the upper front end of the calibration rod is connected with a nut fixture, a calibration bar is fixed through the calibration rod and the nut fixture, a micro motor is arranged 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 weights;

[0008] The calibration support, micro motor, calibration rod 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 are arranged two lower bearing seats and a variable frequency motor, the upper portion of the lower bearing seat is connected to the lower portion 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 portion 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 graduated grooves.

[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, automatically start the zero position calibration, the micro motor pulls up the calibration rod through the wire rope, so that the calibration wheel does not contact the plate roller, and starts the variable frequency motor, which 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-shaped roller. At this time, the micro motor releases the wire rope and places the calibration wheel on the plate-shaped roller. The wire rope is no longer stressed.

[0017] S3, after being placed, the first channel of the plate-shaped 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-shaped 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-shaped roller are calibrated. Then lift the calibration rod so that the calibration wheel does not contact the surface of the plate-shaped roller, and the calibration is completed.

[0020] Furthermore, when the plate roller signal 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 to the servo motor, driving the calibration screw to automatically move the calibration rod to the predetermined position, thereby completing the calibration process of the corresponding channel.

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

[0022] The complete set of calibration device provided by the present invention can be quickly disassembled and assembled, and a servo motor is used to drive the calibration screw to drive the calibration rod, the calibration wheel and the calibration weight to move to the calibration position, and automatically calibrate to zero and accurately position; 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 the traditional manual calibration work, which is accurate and efficient, safe and reliable, and saves 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative labor.

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

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

[0026] Figure 3 It is a replaceable calibration beam diagram of 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. plate shape meter or plate shape 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 of the present invention and the features in the embodiments 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 by no means 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 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 exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates 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 described in these embodiments, the numerical expressions and numerical values ​​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 technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0032] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the 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 contours 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 here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. 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 figure. For example, if the device in the accompanying 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 comprises two calibration supports 3; with the axial direction of the shape meter or the shape roller 13 being 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 outer side of the calibration support 3; the signal device 14 is electrically connected to a wireless transceiver 15, a micro motor 11 and a servo motor 2, and the wireless transceiver 15 is wirelessly connected to an industrial computer.

[0035] A calibration wheel 9 is arranged 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, and 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 fixedly passed through the calibration rod 10 and the nut fixture 7, and a micro motor 11 is arranged at the front of the calibration rod 10, and a steel wire rope 8 is connected to the calibration weight 12 after passing through the micro motor 11 and the upper pulley of the nut fixture 7 in sequence;

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

[0037] The plate profile meter or plate profile roller fixing device includes a calibration platform 16, on which are arranged two lower bearing seats 5 and a variable frequency motor 1, 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 one 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 a calibration screw and a nut fixture and fixed on a calibration bracket, and the calibration screw drives the nut fixture to move laterally, and automatically adjusts the distance to implement precise positioning according to the set position; the micro motor can automatically pull up or lower the calibration rod through a steel 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 the micro motor, and sends calibration signals to the industrial computer wirelessly, and combined with the plate shape calibration system, the fully automatic calibration process of the plate shape 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, the calibration rod 10, the micro motor 11 and the 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 full-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 to ensure 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 of the calibration system, the calibration device can calibrate the detection channels of the plate roller from one side to the other in turn, or it can automatically move to a detection channel for calibration correction according to the set instructions as needed.

[0044] The calibration screw can also be replaced by a calibration rod with grooves for manual positioning calibration; or a calibration rod can be added to the calibration screw to meet the requirements of both automatic and manual calibration methods; all of the above are within the scope of protection of this patent.

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

[0046] A method for fully automatic online calibration of a shape meter or a shape roller, based on any one of the above-mentioned fully automatic online calibration devices for a shape meter or a shape roller, comprises the following steps:

[0047] S1, start the calibration signal device 14, automatically start the zero position 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, and starts the variable frequency motor 1, which drives the plate roller 13 to rotate to the set speed;

[0048] S2, after the zero position is determined, the calibration process begins, and 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;

[0049] S3, after being placed in place, 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 wire rope 8, so that the calibration wheel 9 leaves the surface of the plate-shaped roller 13;

[0050] S4, the servo motor 2 drives the calibration screw 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, repeat S4 until all detection channels of the plate-shaped roller 13 are calibrated, lift the calibration rod 10 so that the calibration wheel 9 does not contact the surface of the plate-shaped roller 13, and the calibration is completed.

[0052] 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, it belongs to a certain calibration channel number, and the signal device 14 transmits instructions to the servo motor 2 to drive the calibration screw to automatically move the calibration rod 10 to the predetermined position, thereby completing the calibration process of the corresponding channel.

[0053] The overall disassembly and assembly process is very convenient. The entire calibration device is fixed on the bearing seat through the calibration support 3. After the calibration is completed, the entire set can be lifted away by loosening the screws, which is quick and convenient. The calibration support can be accurately positioned with the bearing seat by setting a positioning block or a positioning pin to minimize the calibration deviation.

[0054] The device is easy to install, easy to calibrate, automatically aligns the plate shape detection channel, accurately positions, and has high calibration accuracy. It is very suitable for the online automatic calibration process of all contact plate shape meters. Similar calibration processes can be realized and are within the protection 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned 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 device for a shape meter or a shape roller, characterized in that: The fully automatic online calibration device is arranged on a plate shape meter or a plate shape roller fixing device, and the fully automatic online calibration device comprises two calibration supports (3); with the axis direction of the plate shape meter or the plate 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 plate shape meter or the plate 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 outer side of the calibration support (3); A calibration wheel (9) is arranged directly above the plate shape meter or the plate shape roller (13), the left and right sides of the calibration wheel (9) are connected to a calibration rod (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 fixedly passed through the calibration rod (10) and the nut fixture (7), a micro motor (11) is arranged at the front of the calibration rod (10), and the steel 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 clamp (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).

2. The fully automatic online calibration device for the shape meter or shape roller according to claim 1, characterized in that: The plate profile meter or plate profile roller fixing device comprises a calibration platform (16), on which two lower bearing seats (5) and a variable frequency motor (1) are arranged, 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).

3. The fully automatic online calibration device 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 device 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 polished rod with a scale groove.

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

6. The fully automatic online calibration device 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.

7. A method for fully automatic online calibration of a shape meter or a shape roller, implemented based on the fully automatic online calibration device for a shape meter or a shape roller according to any one of claims 1 to 6, characterized in that: The steps include: S1, start the calibration signal device (14), automatically start the zero position 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 variable frequency motor (1), and the variable frequency motor (1) drives the plate roller (13) to rotate to a 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 being placed in place, 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 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), the calibration rod (10), and the calibration weight (12) to the next channel to complete the calibration of the next channel; S5, repeat S4 until all the 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), and the calibration is completed.

8. 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 the 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.

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