Plate type analyzer

Abstract

The invention relates to the technical field of strip steel measurement, in particular to a plate type analyzer. A plate type analyzer comprises a frame body, a first measuring mechanism, a second measuring mechanism, a first measuring mechanism and a second measuring mechanism, wherein the frame body is provided with a strip steel measuring position, and the first measuring mechanism is used for measuring the thickness and width of strip steel in the strip steel measuring position; the second measuring part comprises a second displacement mechanism and a second measuring mechanism, the second displacement mechanism comprises a mounting cross beam, a first displacement piece and a second displacement piece, the second measuring mechanism is arranged on the mounting cross beam, and the first displacement piece is used for driving the measuring end of the second measuring mechanism to be close to or away from the surface of the strip steel; the second displacement part is used for driving the second measuring mechanism to move from one side to the other side in the width direction of the strip steel, and the second measuring mechanism is used for measuring the section contour morphology and contour linear length of the strip steel. According to the technical scheme, the working efficiency can be improved, the labor intensity of workers is relieved, the strip steel plate shape quality is monitored, and therefore the number of defective products is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of strip steel measurement, and in particular to a plate shape analyzer. Background Art

[0002] Current shape meters measure strip shape by applying pressure to the shape rollers. This expensive equipment is unsuitable for small production lines. Furthermore, existing shape meters only monitor strip shape and do not measure strip thickness. Some production lines lack real-time monitoring equipment during strip production and rely on manual strip sampling after production stops. Manual measurement is inefficient and can only measure the width and thickness of the sample, failing to capture the overall strip profile and trend. Summary of the Invention

[0003] The present disclosure aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, the present disclosure provides a plate shape analyzer, comprising a frame, a first measuring portion, and a second measuring portion. The frame has a strip measuring position, and the first measuring portion and the second measuring portion are connected to the frame. The first measuring portion comprises a first displacement mechanism and a plurality of first measuring mechanisms. The first displacement mechanism is used to drive the plurality of first measuring mechanisms to move from both sides of the strip measuring position toward the middle. The first measuring mechanisms are used to measure the thickness and width of the strip in the strip measuring position.

[0005] The second measuring part includes a second displacement mechanism and a second measuring mechanism, the second displacement mechanism includes a mounting beam, a first displacement member and a second displacement member, the second measuring mechanism is arranged on the mounting beam, the first displacement member is used to drive the measuring end of the second measuring mechanism close to or away from the surface of the strip, the second displacement member is used to drive the second measuring mechanism to move from one side to the other side along the width direction of the strip, and the second measuring mechanism is used to measure the cross-sectional profile morphology and the linear length of the profile of the strip.

[0006] In a feasible embodiment, the first displacement mechanism includes a measuring guide rail and a driving member, the first measuring mechanism includes a measuring member mounting portion, a digital micrometer sensor and a laser ranging sensor, the digital micrometer sensor and the laser ranging sensor are arranged on the measuring member mounting portion, the measuring member mounting portion is connected to the measuring guide rail, and the driving member is used to drive the measuring member mounting portion to move on the measuring guide rail, wherein,

[0007] The digital micrometer sensor is used to measure the width of the strip;

[0008] The laser ranging sensor is used to measure the thickness of the steel strip.

[0009] In a feasible embodiment, the measuring guide rail includes a first guide rail and a second guide rail, the first guide rail and the second guide rail are spaced apart, the strip steel measuring position is set between the first guide rail and the second guide rail, four first measuring mechanisms are provided, and the four first measuring mechanisms are evenly distributed on the first guide rail and the second guide rail, wherein,

[0010] At least one set of laser ranging sensors is provided on the measuring mounting portion;

[0011] The number of the digital micrometer sensors is set to multiple groups, the measuring piece mounting parts on the first guide rail and the second guide rail are provided with at least one group of the digital micrometer sensors, and the digital micrometer sensors are provided on both sides of the strip measuring position in the width direction.

[0012] In a feasible implementation manner, the digital micrometer sensor is configured as a green LED digital micrometer sensor.

[0013] In a feasible embodiment, the first measuring guide rail is provided with a first grating scale, and the first grating scale is used to measure the movement stroke of the measuring component mounting portion.

[0014] In a feasible embodiment, the mounting beam includes a first beam and a second beam, a plurality of the second measuring mechanisms are evenly distributed on the first beam and the second beam, and the first beam and the second beam are spaced apart, the strip measuring position is set between the first beam and the second beam, the first beam and the second beam are connected to the first displacement member, and the first displacement member is used to drive the first beam and the second beam closer or farther away.

[0015] In a feasible embodiment, three groups of the second measuring mechanisms are respectively provided on the first crossbeam and the second crossbeam, and the second measuring mechanisms include a 3D sensor and a high-precision laser rangefinder.

[0016] In a feasible embodiment, the first displacement member includes a guide rail, a beam driving member and a second grating scale, the first beam and the second beam are connected to the guide rail, the beam driving member is used to drive the first beam and the second beam to move in the extension direction of the guide rail, the second grating scale is arranged on the guide rail, and the second grating scale is used to measure the movement stroke of the first beam and the second beam on the guide rail.

[0017] In a feasible embodiment, a second anti-collision stop is provided at the center position of the guide rail in the extension direction, and the second anti-collision stop is used to prevent the first beam and the second beam from contacting the strip steel.

[0018] In a feasible embodiment, a first anti-collision stop is provided at the center of the strip measuring position, and the first anti-collision stop is used to prevent the first measuring mechanisms on both sides of the strip measuring position from contacting each other.

[0019] The above description is only an overview of the technical solution provided by the present disclosure. In order to more clearly understand the technical means of the present disclosure, it can be implemented in accordance with the contents of the specification. In order to make the above and other features and effects of the present disclosure more obvious and easy to understand, the implementation methods of the present disclosure are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0021] In order to more clearly illustrate the embodiments of the present disclosure 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the exemplary embodiments below. The accompanying drawings are for illustration purposes only and are not to be considered limiting of the present application. Throughout the accompanying drawings, the same reference symbols denote the same components. In the accompanying drawings:

[0023] Figure 1 This is one of the structural schematic diagrams of the strip steel detection state disclosed in the present invention;

[0024] Figure 2 This is a schematic structural diagram of the first measuring unit disclosed herein;

[0025] Figure 3 Schematic diagram of the structure of the second measuring unit of the present disclosure;

[0026] Figure 4 A schematic diagram of the structure of the installation of the crossbeam, the first displacement member and the second displacement member disclosed in the present invention;

[0027] Figure 5 This is a schematic structural diagram of the first crossbeam and the second crossbeam disclosed in the present invention;

[0028] Figure 6 This is a schematic structural diagram of the first measuring unit and the second measuring unit disclosed herein;

[0029] Figure 7 Schematic diagram of the structure of the second measuring mechanism disclosed in the present invention;

[0030] Figure 8 This is the second structural diagram of the strip steel detection state disclosed in the present invention;

[0031] Figure 9 Schematic diagram of the configuration structure of the digital micrometer sensor disclosed in the present invention;

[0032] Figure 10 Schematic diagram of the structure of the second measuring mechanism disclosed in the present invention;

[0033] Figure 11 Schematic diagram of the principle of strip steel profile detection disclosed in the present invention;

[0034] Figure 12 This is a schematic diagram of a steel strip pattern drawn by a laser rangefinder when detecting steel strip shape intersection according to the present disclosure;

[0035] Figure 13 Schematic diagram of the principle of strip thickness detection disclosed in the present invention.

[0036] in, Figures 1 to 13 The corresponding relationship between the reference numerals and component names is as follows:

[0037] 100-strip steel;

[0038] 1-frame; 2-first measuring part; 21-first displacement mechanism; 22-first measuring mechanism; 211-guide rail; 2111-first guide rail; 2112-second guide rail; 212-driving member; 22-first measuring mechanism; 221-measuring member mounting portion; 222-digital micrometer sensor; 223-laser distance measuring sensor; 3-second measuring part; 31-second measuring mechanism; 311-3D sensor; 312-laser distance measuring device; 32-mounting beam; 321-first beam; 322-second beam; 33-first displacement member; 331-guide rail; 332-beam driving member; 34-second displacement member; 4-first grating scale; 5-second grating scale; 51-second grating scale reading end; 6-second anti-collision stop; 7-first anti-collision stop. DETAILED DESCRIPTION

[0039] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0041] Currently, shape meters measure strip shape by applying pressure to shape rollers. This expensive equipment is unsuitable for small production lines. Furthermore, existing shape meters only monitor strip shape and do not measure strip thickness. Some production lines lack real-time monitoring equipment during strip production and rely on manual strip sampling after production stops. Manual measurement is inefficient and can only measure the width and thickness of the sample, failing to capture the overall strip profile and trend.

[0042] Based on this, an embodiment of the present disclosure provides a flatness analyzer. The first and second measuring sections of the present disclosure measure the strip in two ways: dynamic and static measurements. When the strip is stationary, the static measurement mode of the device can be used. During static measurement, data errors are relatively small, and the cross-sectional profile value, actual thickness value, maximum and minimum thickness deviation values, minimum width value, and surface profile length value of the strip are measured. When the strip is rolling, the dynamic measurement mode of the device can be used, utilizing the first and second measuring sections to measure the strip's flatness value and thickness value.

[0043] The plate type analyzer is described in detail below through specific embodiments:

[0044] Reference Figures 1 to 13 As shown, the present disclosure provides a plate type analyzer, including a frame 1, a first measuring part 2 and a second measuring part 3, the frame 1 has a strip measuring position, the first measuring part 2 and the second measuring part 3 are connected to the frame 1, wherein the first measuring part 2 includes a first displacement mechanism 21 and a plurality of first measuring mechanisms 22, the first displacement mechanism 21 is used to drive the plurality of first measuring mechanisms 22 to move from both sides of the strip measuring position to the middle, and the first measuring mechanism 22 is used to measure the thickness and width of the strip 100 in the strip measuring position; the second measuring part 3 includes a second displacement mechanism and a second measuring mechanism 31, the second displacement mechanism includes a mounting beam 32, a first displacement member 33 and a second displacement member 34, the second measuring mechanism 31 is arranged on the mounting beam 32, the first displacement member 33 is used to drive the measuring end of the second measuring mechanism 31 close to or away from the surface of the strip 100, the second displacement member 34 is used to drive the second measuring mechanism 31 to move along one side to the other side in the width direction of the strip 100, and the second measuring mechanism 31 is used to measure the cross-sectional profile morphology and the linear length of the profile of the strip 100.

[0045] The first measuring section 2 of the present invention includes a first displacement mechanism 21 and multiple first measuring mechanisms 22. The first measuring mechanism 22 is used to measure the thickness and width of the steel strip 100 at the strip measurement position. The first measuring mechanism 22 of the present invention is configured as a laser rangefinder, an electronic rangefinder, or other device. The present invention specifically uses a laser rangefinder. The width measurement value of the steel strip 100 is calculated based on the difference between the total stroke of the first displacement mechanism 21 and the stroke of the first displacement mechanism 21 to the edge of the steel strip. The thickness value of the steel strip 100 is calculated based on the difference between the distance between the front and rear surfaces of the steel strip 100 and the base point of the first measuring mechanism 22 and the total distance between the base points of the two first measuring mechanisms 22 on the front and rear surfaces of the steel strip 100. The first displacement mechanism 21 can be configured as a lead screw stepper motor, a robotic arm, a telescopic slide rail, or the like to drive the multiple first measuring mechanisms 22 to move from both sides of the steel strip measurement position to the center, thereby achieving accurate measurement of multi-point samples.

[0046] The first displacement member 33 disclosed in the present invention is used to drive the measuring end of the second measuring mechanism 31 to approach or move away from the surface of the strip 100. Measurement can be performed when the distance from the strip surface is 20 cm. The surface profile and linear length of the profile of the strip are measured by the high-precision laser rangefinder sensor and 3D profile scanning sensor of the second measuring mechanism 31.

[0047] In some embodiments, the first displacement mechanism 21 includes a measuring guide rail 211 and a driving member 212, and the first measuring mechanism 22 includes a measuring member mounting portion 221, a digital micrometer sensor 222 and a laser ranging sensor 223, the digital micrometer sensor 222 and the laser ranging sensor 223 are arranged on the measuring member mounting portion 221, the measuring member mounting portion 221 is connected to the measuring guide rail 211, and the driving member 212 is used to drive the measuring member mounting portion 221 to move on the measuring guide rail 211, wherein the digital micrometer sensor 222 is used to measure the width of the strip 100; the laser ranging sensor 223 is used to measure the thickness of the strip 100.

[0048] In this embodiment, the digital micrometer sensor 222 can be set as a green LED digital micrometer sensor 222. The digital micrometer sensor 222 moves toward the strip. When the edge of the strip enters the light zone of the digital micrometer sensor 222, it stops moving when the edge blocks half of the light zone. The sensor recognizes the edge position of the strip. Figure 13 As shown, the initial value L - L1 - L2 = the minimum strip width W1. Subtract H1 from H2 from the initial value H, and the difference is the thickness. Comparing thickness samples at various locations on the strip 100 reveals the locations and values of maximum and minimum thickness.

[0049] In some embodiments, the measuring guide rail 211 includes a first guide rail 2111 and a second guide rail 2112, the first guide rail 2111 and the second guide rail 2112 are spaced apart, the strip measuring position is set between the first guide rail 2111 and the second guide rail 2112, four first measuring mechanisms 22 are set, and the four first measuring mechanisms 22 are evenly distributed on the first guide rail 2111 and the second guide rail 2112, wherein at least one group of laser ranging sensors 223 is set on the measuring mounting part; the number of digital micrometer sensors 222 is set to multiple groups, and at least one group of digital micrometer sensors 222 is set on the measuring piece mounting part 221 on the first guide rail 2111 and the second guide rail 2112, and digital micrometer sensors 222 are set on both sides of the strip measuring position in the width direction.

[0050] In this embodiment, the measuring rail 211 includes a first rail 2111 and a second rail 2112, each of which is equipped with a first measuring mechanism 22. To facilitate the measurement of the width of the steel strip 100, the measuring component mounting portions 221 on the first and second rails 2111 and 2112 are equipped with at least one set of digital micrometer sensors 222, with digital micrometer sensors 222 positioned on both sides of the strip width measurement position. During operation, the digital micrometer sensors 222 on either side of the steel strip 100 move toward the center. When the edge of the steel strip 100 is detected, the width of the steel strip 100 can be calculated. Furthermore, the four laser ranging sensors 223 on the first measuring mechanism 22 increase the efficiency of measuring thickness samples of the steel strip 100. Furthermore, multiple sets of laser ranging sensors 223 can be installed on the measuring mounting portions to further enhance measurement efficiency.

[0051] In some embodiments, the first measuring guide rail 211 is provided with a first grating ruler 4, which is used to measure the travel of the measuring piece mounting portion 221. The grating ruler has a relatively high measurement accuracy of ±5 μm, which can improve the measurement accuracy.

[0052] In some embodiments, the mounting beam 32 includes a first beam 321 and a second beam 322, and a plurality of second measuring mechanisms 31 are evenly distributed on the first beam 321 and the second beam 322, and the first beam 321 and the second beam 322 are spaced apart, and the strip steel measuring position is set between the first beam 321 and the second beam 322, and the first beam 321 and the second beam 322 are connected to the first displacement member 33, and the first displacement member 33 is used to drive the first beam 321 and the second beam 322 closer or farther away.

[0053] In this embodiment, the distance between the second measuring mechanism 31 and the surface of the steel strip 100 is adjusted by a beam 321 and a second beam 322. The first displacement member 33 is used to drive the first beam 321 and the second beam 322 closer or farther away, thereby adjusting the distance between the second measuring mechanism 31 and the surface of the steel strip 100. This arrangement can achieve consistency in the distance adjustment between multiple second measuring mechanisms 31 and the surface of the steel strip 100, thereby improving the consistency of the numerical benchmark of multi-point measurement samples.

[0054] In some embodiments, three groups of second measuring mechanisms 31 are respectively provided on the first crossbeam 321 and the second crossbeam 322 . The second measuring mechanisms 31 include a 3D sensor and a high-precision laser rangefinder.

[0055] In this embodiment, three sets of second measuring mechanisms 31 are respectively provided on the first crossbeam 321 and the second crossbeam 322. The second measuring mechanisms 31 include a 3D sensor and a high-precision laser rangefinder. Figures 11 to 13 As shown, the first and second beams 321 and 322 move toward the surface of the steel strip 100, stopping 20 cm from the strip's surface. After the laser distance sensor detects the strip's edge, the second displacement member 34 uniformly drives the second measuring mechanism 31 along the strip's width, thereby determining the strip's cross-sectional profile. The algorithm relies on the distance from the laser sensor to the strip's surface. As the second displacement member 34 uniformly moves the second measuring mechanism 31, it reads a value at each point every 1 mm of travel. Finally, the values at each point are connected to form a line, which depicts the strip's cross-sectional profile at that point. Different strip shapes produce different graphics, but the graphic depicts the strip's actual profile. The values are combined to form a line along the edge of the graphic, and the length of the combined line segment is calculated to represent the linear length of the profile.

[0056] In some embodiments, the first displacement member 33 includes a guide rail 331, a beam driving member 332 and a second grating scale 5. The first beam 321 and the second beam 322 are connected to the guide rail 331. The beam driving member 332 is used to drive the first beam 321 and the second beam 322 to move in the extension direction of the guide rail 331. The second grating scale 5 is set on the guide rail 331, and the second grating scale 5 is used to measure the moving stroke of the first beam 321 and the second beam 322 on the guide rail 331.

[0057] In some embodiments, a second anti-collision stop 6 is provided at the center of the guide rail 331 in the direction of extension. The second anti-collision stop 6 is used to prevent the first crossbeam 321 and the second crossbeam 322 from contacting the steel strip 100. To prevent the first crossbeam 321 and the second crossbeam 322 from colliding with the steel strip 100 or with each other, the second anti-collision stop 6 is provided at the center of the guide rail 331 in the direction of extension. The second anti-collision stop 6 can be made of a nylon anti-collision block, thereby preventing the first crossbeam 321 and the second crossbeam 322 from colliding with the steel strip.

[0058] In some embodiments, a first anti-collision stopper 7 is provided at the center of the strip measuring position, and the first anti-collision stopper 7 is used to prevent the first measuring mechanisms 22 on both sides of the strip measuring position from contacting each other.

[0059] In the present disclosure, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0060] In the description of the present disclosure, it is to be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, cannot be understood as a limitation on the present disclosure.

[0061] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0062] The above are merely preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that various modifications and variations of the present disclosure are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A plate type analyzer, characterized in that: It includes a frame, a first measuring part and a second measuring part, the frame has a strip steel measuring position, the first measuring part and the second measuring part are connected to the frame, wherein, The first measuring portion includes a first displacement mechanism and a plurality of first measuring mechanisms, wherein the first displacement mechanism is used to drive the plurality of first measuring mechanisms to move from both sides of the strip measuring position to the middle, and the first measuring mechanisms are used to measure the thickness and width of the strip in the strip measuring position; The second measuring part includes a second displacement mechanism and a second measuring mechanism, the second displacement mechanism includes a mounting beam, a first displacement member and a second displacement member, the second measuring mechanism is arranged on the mounting beam, the first displacement member is used to drive the measuring end of the second measuring mechanism close to or away from the surface of the strip, the second displacement member is used to drive the second measuring mechanism to move from one side to the other side along the width direction of the strip, and the second measuring mechanism is used to measure the cross-sectional profile morphology and the linear length of the profile of the strip.

2. The plate type analyzer according to claim 1, characterized in that The first displacement mechanism includes a measuring guide rail and a driving member. The first measuring mechanism includes a measuring member mounting portion, a digital micrometer sensor, and a laser distance sensor. The digital micrometer sensor and the laser distance sensor are arranged on the measuring member mounting portion. The measuring member mounting portion is connected to the measuring guide rail. The driving member is used to drive the measuring member mounting portion to move on the measuring guide rail. The digital micrometer sensor is used to measure the width of the strip; The laser ranging sensor is used to measure the thickness of the steel strip.

3. The plate type analyzer according to claim 2, characterized in that The measuring guide rail includes a first guide rail and a second guide rail, the first guide rail and the second guide rail are spaced apart, the strip steel measuring position is set between the first guide rail and the second guide rail, four first measuring mechanisms are set, and the four first measuring mechanisms are evenly distributed on the first guide rail and the second guide rail, wherein, At least one set of laser ranging sensors is provided on the measuring mounting portion; The number of the digital micrometer sensors is set to multiple groups, the measuring piece mounting parts on the first guide rail and the second guide rail are provided with at least one group of the digital micrometer sensors, and the digital micrometer sensors are provided on both sides of the strip measuring position in the width direction.

4. The plate type analyzer according to claim 2 or 3, characterized in that: The digital micrometer sensor is configured as a green LED digital micrometer sensor.

5. The plate type analyzer according to claim 1, characterized in that The first measuring guide rail is provided with a first grating ruler, and the first grating ruler is used to measure the moving stroke of the measuring piece mounting portion.

6. The plate type analyzer according to claim 1, characterized in that The mounting beam includes a first beam and a second beam, and a plurality of second measuring mechanisms are evenly distributed on the first beam and the second beam, and the first beam and the second beam are spaced apart. The strip steel measuring position is set between the first beam and the second beam, and the first beam and the second beam are connected to the first displacement member, and the first displacement member is used to drive the first beam and the second beam closer or farther away.

7. The plate type analyzer according to claim 6, characterized in that Three groups of the second measuring mechanisms are respectively provided on the first crossbeam and the second crossbeam. The second measuring mechanisms include a 3D sensor and a high-precision laser rangefinder.

8. The plate type analyzer according to claim 6, characterized in that The first displacement member includes a guide rail, a beam driving member and a second grating scale. The first beam and the second beam are connected to the guide rail. The beam driving member is used to drive the first beam and the second beam to move in the extension direction of the guide rail. The second grating scale is arranged on the guide rail, and the second grating scale is used to measure the movement stroke of the first beam and the second beam on the guide rail.

9. The plate type analyzer according to claim 8, characterized in that: A second anti-collision stop is provided at the center position of the guide rail in the extending direction, and the second anti-collision stop is used to prevent the first beam and the second beam from contacting the strip steel.

10. The plate type analyzer according to claim 1, characterized in that A first anti-collision stop is provided at the center of the strip measuring position, and the first anti-collision stop is used to prevent the first measuring mechanisms on both sides of the strip measuring position from contacting each other.

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