A steel coil width and diameter measuring system and its control method in a cold rolling mill

Abstract

The present application provides a width and diameter measuring system for steel coils in a cold rolling mill and a control method thereof. The system includes a saddle, a steel coil, a measuring frame base, a diameter measuring component, a large moving arm of the measuring frame, a position detection element for the moving large arm, a first width measuring component, a second width measuring component, a first width measuring detection element, a second width measuring detection element, and a controller. The position detection element for the moving large arm is configured to obtain the position change value of the large moving arm of the measuring frame; the first width measuring detection element and the second width measuring detection element are configured to obtain a first telescopic amount and a second telescopic amount respectively; the controller is configured to calculate the diameter size of the steel coil according to the position change value of the large moving arm of the measuring frame; and calculate the width of the telescopic steel coil according to the first telescopic amount and the second telescopic amount. The present application realizes the accurate measurement of the size of steel coils in a cold rolling mill through the above system and its control method, greatly improving the production efficiency and production safety.

Description

Technical Field

[0001] The present invention relates to the technical field of steel coil width and diameter measurement, and particularly relates to a steel coil width and diameter measurement system and a control method thereof in a cold rolling mill. Background Art

[0002] The cold rolling mill is an essential equipment in a cold rolling steel plant. Among them, the raw material steel coil of the cold rolling mill is transported to the coil car by the walking beam, and then the coil car transports the raw material coil to the production line of the unit for uncoiling production. Among them, data such as the width and diameter of the steel coil are necessary factors in the entire production process, and generally, the measurement is carried out during the transportation of the steel coil by the coil car.

[0003] The traditional method is to measure by combining a grating for measurement and the speed of the coil car during the transportation of the coil car. This method requires the grating to be at a 90-degree angle to the running direction of the steel coil and the speed of the car to be constant. Therefore, the stability of the angle of the grating and the speed of the car will directly affect the accuracy of the steel coil width and diameter data calculated by the program, and abnormal measurement will also directly affect production. Summary of the Invention

[0004] The present application provides a steel coil width and diameter measurement system and a control method thereof in a cold rolling mill to solve the problem of inaccurate measurement of the size of the raw material steel coil in the current cold rolling steel plant.

[0005] In the first aspect of the present application, a steel coil width and diameter measurement system in a cold rolling mill is provided. The system includes:

[0006] A saddle, which is connected to the ground and has a groove on which the steel coil is mounted;

[0007] A measuring frame base, which is arranged along the direction perpendicular to the axis of the steel coil;

[0008] A diameter measurement component arranged on the measuring frame base. The steel coil diameter measurement component includes a measuring frame moving boom slidably connected to the measuring frame base along the direction perpendicular to the axis of the steel coil and a moving boom position detection element arranged on the side of the measuring frame base away from the steel coil;

[0009] A first width measurement component and a second width measurement component arranged on the measuring frame moving boom. The first width measurement component and the second width measurement component are both perpendicular to the axis of the measuring frame moving boom and are arranged on both sides of the measuring frame moving boom; both the first width measurement component and the second width measurement component are right-angle structures that can extend along the direction perpendicular to the measuring frame moving boom, with the right-angle opening facing the steel coil. A first width measurement detection element is arranged on the first width measurement component, and a second width measurement detection element is arranged on the second width measurement component;

[0010] A controller wirelessly connected to the moving jib position detection element, the first width measurement detection element, and the second width measurement detection element;

[0011] The moving jib position detection element is configured to obtain the position change value of the moving jib of the measuring frame and send it to the controller;

[0012] The first width measurement detection element and the second width measurement detection element are configured to, when the first width measurement assembly and the second width measurement assembly clamp the steel coil, respectively obtain the first expansion amount of the first width measurement assembly and the second expansion amount of the second width measurement assembly in the direction perpendicular to the moving jib of the measuring frame, and send the first expansion amount and the second expansion amount to the controller;

[0013] The controller is configured to:

[0014] Calculate the diameter size of the steel coil according to the position change value of the moving jib of the measuring frame;

[0015] Calculate the width of the telescopic steel coil according to the first expansion amount and the second expansion amount.

[0016] Preferably, the first width measurement assembly further includes:

[0017] A first telescopic arm vertically connected to the moving jib of the measuring frame, and the first telescopic arm expands and contracts in the direction perpendicular to the moving jib of the measuring frame;

[0018] A first width measurement support arm vertically arranged on the first telescopic arm and on the side away from the base of the measuring frame;

[0019] The second width measurement assembly further includes:

[0020] A second telescopic arm vertically connected to the moving jib of the measuring frame, and the second telescopic arm expands and contracts in the direction perpendicular to the moving jib of the measuring frame;

[0021] A second width measurement support arm vertically arranged on the second telescopic arm and on the side away from the base of the measuring frame;

[0022] The first expansion amount is the expansion and contraction length of the first telescopic arm, and the second expansion amount of the expansion is the expansion and contraction length of the second telescopic arm;

[0023] The first width measurement detection element and the second width measurement detection element of the expansion are configured to:

[0024] When the first width measurement support arm and the second width measurement support arm clamp the steel coil, respectively obtain the first expansion amount of the first telescopic arm and the second expansion amount of the second telescopic arm.

[0025] Preferably, the moving boom position detection element is further configured to:

[0026] Detect whether the moving boom of the measuring frame stops moving;

[0027] If so, the moving boom position detection element obtains the position change value of the moving boom of the measuring frame after a preset time interval and sends it to the controller;

[0028] The first width measurement detection element is further configured to:

[0029] Detect whether the first telescopic arm stops telescoping;

[0030] If so, the first width measurement detection element obtains the first telescopic amount of the first telescopic arm after a preset time interval and sends it to the telescopic controller;

[0031] The second width measurement detection element is further configured to:

[0032] Detect whether the second telescopic arm stops telescoping;

[0033] If so, the second width measurement detection element obtains the second telescopic amount of the second telescopic arm after a preset time interval and sends it to the telescopic controller.

[0034] Preferably, a moving boom hydraulic cylinder is arranged inside the measuring frame base along the axis direction of the moving boom of the measuring frame;

[0035] One end of the moving boom hydraulic cylinder close to the steel coil is connected to the moving boom of the measuring frame, and the moving boom hydraulic cylinder is wirelessly connected to the moving boom position detection element;

[0036] The moving boom hydraulic cylinder is configured to control the moving boom of the measuring frame to move along the direction perpendicular to the axis of the steel coil, and the moving amount value has a preset range.

[0037] Preferably, a first width measurement support hydraulic cylinder is arranged on the first telescopic arm along the direction perpendicular to the moving boom of the measuring frame;

[0038] One end of the first width measurement support hydraulic cylinder close to the moving boom of the measuring frame is connected to the first telescopic arm, and the other end of the first width measurement support hydraulic cylinder far from the moving boom of the measuring frame is connected to the first width measurement support arm;

[0039] The first width measurement support hydraulic cylinder is configured to control the first telescopic arm to telescope along the direction perpendicular to the moving boom of the measuring frame, and the telescopic amount value has a preset range;

[0040] A second width measurement support hydraulic cylinder is arranged on the second telescopic arm along the direction perpendicular to the moving boom of the measuring frame;

[0041] One end of the moving boom of the second width measuring support hydraulic cylinder close to the measuring frame is connected to the second telescopic arm, and one end of the moving boom of the second width measuring support hydraulic cylinder away from the measuring frame is connected to the second width measuring support arm;

[0042] The second width measuring support hydraulic cylinder is configured to control the second telescopic arm to expand and contract along the direction perpendicular to the moving boom of the measuring frame, and the amount of expansion and contraction has a preset range.

[0043] Preferably, the upper end of the first width measuring support arm on the side away from the measuring frame base has a first width measuring redundancy element;

[0044] The upper end of the second width measuring support arm on the side away from the measuring frame base has a second width measuring redundancy element;

[0045] The first width measuring redundancy element and the second width measuring redundancy element are wirelessly connected to the controller;

[0046] Both the first width measuring redundancy element and the second width measuring redundancy element are configured for redundancy functions to ensure the normal progress of width measurement.

[0047] Preferably, an original position identification element is provided on the moving boom of the measuring frame;

[0048] A moving boom original position detection limit is provided at a position on the measuring frame base that is flush with the original position of the moving boom of the measuring frame;

[0049] The original position identification element is configured to emit an original position signal along the plane where it is located;

[0050] The moving boom original position detection limit is configured as follows:

[0051] When the original position signal is obtained for the first time, a control command for controlling the moving boom hydraulic cylinder to stop working is sent to the moving boom position detection element;

[0052] The control command is used to stop the moving boom of the measuring frame at the original position.

[0053] In a second aspect, the present application also provides a control method for a steel coil width and diameter measuring system in a cold rolling mill, and the control method includes:

[0054] Obtain the position change value of the moving boom of the measuring frame;

[0055] Calculate the diameter size of the steel coil based on the position change value of the moving boom of the measuring frame;

[0056] Obtain the first telescopic amount of the first telescopic arm and the second telescopic amount of the second telescopic arm;

[0057] Calculate the width of the steel coil based on the first telescopic amount and the second telescopic amount.

[0058] This application provides a width and diameter measuring system for steel coils in a cold rolling mill and its control method. The system includes a saddle connected to the ground, the saddle having a groove on which the steel coil is mounted; a measuring frame base arranged along a direction perpendicular to the axis of the steel coil; a diameter measuring component arranged on the measuring frame base, the steel coil diameter measuring component including a measuring frame moving boom slidably connected to the measuring frame base along a direction perpendicular to the axis of the steel coil and a moving boom position detection element arranged on the side of the measuring frame base away from the steel coil; a first width measuring component and a second width measuring component arranged on the measuring frame moving boom, both the first width measuring component and the second width measuring component being perpendicular to the axis of the measuring frame moving boom and arranged on both sides of the measuring frame moving boom; both the first width measuring component and the second width measuring component being right-angled structures that telescope along a direction perpendicular to the measuring frame moving boom, with the right-angled opening facing the steel coil, a first width measuring detection element being arranged on the first width measuring component, and a second width measuring detection element being arranged on the second width measuring component; a controller wirelessly connected to the moving boom position detection element, the first width measuring detection element, and the second width measuring detection element. The moving boom position detection element is configured to obtain the position change value of the measuring frame moving boom and send it to the controller; the first width measuring detection element and the second width measuring detection element are configured to, when the first width measuring component and the second width measuring component clamp the steel coil, respectively obtain the first telescopic amount of the first width measuring component and the second telescopic amount of the second width measuring component in a direction perpendicular to the measuring frame moving boom, and send the first telescopic amount and the second telescopic amount to the controller; the controller is configured to: calculate the diameter size of the steel coil based on the position change value of the measuring frame moving boom; calculate the width of the telescopic steel coil based on the first telescopic amount and the second telescopic amount. Through the above system and its control method, this application realizes the accurate measurement of the size of steel coils in a cold rolling mill, greatly improving the production efficiency and production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the technical solutions of this application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0060] Figure 1 It is a main structural schematic front view of a width and diameter measuring system for steel coils in a cold rolling mill of this application;

[0061] Figure 2 It is a structural schematic side view of a width and diameter measuring system for steel coils in a cold rolling mill of this application;

[0062] Figure 3 This is a schematic flow chart of a control method for a steel coil width and diameter measuring system in a cold rolling mill of the present application.

[0063] Legend:

[0064] 1 - saddle; 2 - steel coil; 3 - base of measuring frame; 4 - diameter measuring assembly; 41 - large moving arm of measuring frame; 411 - original position identification element; 42 - position detection element of moving arm; 43 - moving arm hydraulic cylinder; 5 - first width measuring assembly; 51 - first telescopic arm; 511 - first width measuring support hydraulic cylinder; 52 - first width measuring support arm; 53 - first width measuring detection element; 54 - first width measuring redundant element; 6 - second width measuring assembly; 61 - second telescopic arm; 611 - second width measuring support hydraulic cylinder; 62 - second width measuring support arm; 63 - second width measuring detection element; 64 - second width measuring redundant element; 7 - limit for detecting original position of moving arm; 8 - controller. Detailed implementation manners

[0065] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0066] Figure 1 This is the main structural schematic view of a steel coil width and diameter measuring system in a cold rolling mill of the present application.

[0067] Refer to Figure 1 It can be seen that this embodiment provides a steel coil width and diameter measuring system for a cold rolling mill. The system includes:

[0068] A saddle 1, the saddle 1 is connected to the ground, the saddle 1 has a groove, and the steel coil 2 is mounted on the groove;

[0069] A base 3 of the measuring frame, the base 3 of the measuring frame is arranged along a direction perpendicular to the axis of the steel coil 2.

[0070] Specifically, in this embodiment, the base 3 of the measuring frame is connected to the ground by bolts, and the base 3 of the measuring frame is used to prevent the measuring equipment from shifting during measurement.

[0071] The system further includes a diameter measurement component 4 disposed on the base 3 of the measuring frame. The steel coil diameter measurement component 4 includes a large moving arm 41 of the measuring frame that is slidably connected to the base 3 of the measuring frame along a direction perpendicular to the axis of the steel coil 2, and a position detection element 42 of the moving arm disposed on the side of the base 3 of the measuring frame away from the steel coil.

[0072] Specifically, in this embodiment, the diameter measurement component 4 is slidably connected to the base 3 of the measuring frame. When it is necessary to measure the diameter size of the steel coil 2, it is only necessary to press the diameter measurement component 4 against the steel coil 2 to perform the measurement.

[0073] The system further includes:

[0074] A first width measurement component 5 and a second width measurement component 6 disposed on the large moving arm 41 of the measuring frame. Both the first width measurement component 5 and the second width measurement component 6 are perpendicular to the axis of the large moving arm 41 of the measuring frame and are disposed on both sides of the large moving arm 41 of the measuring frame; both the first width measurement component 5 and the second width measurement component 6 are right-angle structures that can expand and contract along a direction perpendicular to the large moving arm 41 of the measuring frame, with the right-angle openings facing the steel coil 2. A first width measurement detection element 53 is provided on the first width measurement component 5, and a second width measurement detection element 63 is provided on the second width measurement component 6;

[0075] A controller 8 that is wirelessly connected to the position detection element 42 of the moving arm, the first width measurement detection element 53, and the second width measurement detection element 63.

[0076] Specifically, in this embodiment, the diameter measurement component 4, the first width measurement component 5, and the second width measurement component 6 are hardware for measuring dimensions, and the position detection element 42 of the moving arm, the first width measurement detection element 53, and the second width measurement detection element 63 are electronic components for obtaining information about the steel coil.

[0077] The position detection element 42 of the moving arm is configured to obtain the position change value of the large moving arm 41 of the measuring frame and send it to the controller 8;

[0078] The first width measurement detection element 53 and the second width measurement detection element 63 are configured to, when the first width measurement component 5 and the second width measurement component 6 clamp the steel coil 2, respectively obtain the first expansion amount of the first width measurement component 5 and the second expansion amount of the second width measurement component 6 in a direction perpendicular to the large moving arm 41 of the measuring frame, and send the first expansion amount and the second expansion amount to the controller 8;

[0079] The controller 8 is configured to:

[0080] Calculate the diameter size of the steel coil according to the position change value of the boom 41 moved by the measuring frame;

[0081] Calculate the width of the steel coil 2 according to the first telescopic amount and the second telescopic amount.

[0082] Specifically, in this embodiment, when the diameter measuring assembly 4 is in contact with the steel coil 2, the moving boom position detection element 42 obtains the position change value of the measuring frame moving boom 41. The distance from the saddle 1 to the center of the measuring frame moving boom 41 in the horizontal direction is a preset value. The controller 8 calculates the diameter size of the steel coil according to the position change value of the measuring frame moving boom 41 and the distance from the saddle 1 to the center of the measuring frame moving boom 41.

[0083] When the first width measuring assembly 5 and the second width measuring assembly 6 clamp the steel coil 2, the first width measuring detection element 53 and the second width measuring detection element 63 are used to respectively obtain the first telescopic amount of the first width measuring assembly 5 and the second telescopic amount of the second width measuring assembly 6 in the direction perpendicular to the measuring frame moving boom 41. The values of the distances from the first width measuring assembly 5 to the center position of the saddle 1 in the horizontal direction and from the second width measuring assembly 6 to the center position of the saddle 1 in the horizontal direction are both preset values. The controller 8 calculates the width of the steel coil 2 according to the above known quantities, the first telescopic amount and the second telescopic amount.

[0084] It should be noted that, in this embodiment, the operations of the diameter measuring assembly 4, the first width measuring assembly 5 and the second width measuring assembly 6 are completed by a supporting control system, and specific details are not limited here.

[0085] Figure 2 It is a schematic side view of the structure of a steel coil width and diameter measuring system in a cold rolling mill of the present application.

[0086] Refer to Figure 2 It can be seen that, in some embodiments, the first width measuring assembly 5 further includes:

[0087] A first telescopic arm 51 vertically connected to the measuring frame moving boom 41, and the first telescopic arm 51 telescopes in the direction perpendicular to the measuring frame moving boom 41;

[0088] A first width measuring support arm 52 vertically arranged on the first telescopic arm 51 and away from the side of the measuring frame base 3.

[0089] Specifically, in this embodiment, the first width measuring component 5 is further designed by structuring it with the first telescopic arm 51 and the first width measuring support arm 52, which facilitates the maintenance or replacement of the equipment and further extends the overall service life of the equipment.

[0090] The second width measuring component 6 further includes:

[0091] A second telescopic arm 61 perpendicularly connected to the large moving arm 41 of the measuring frame, and the second telescopic arm 61 extends and retracts in a direction perpendicular to the large moving arm 41 of the measuring frame;

[0092] A second width measuring support arm 62 vertically arranged on the second telescopic arm 61 and away from one side of the measuring frame base 3.

[0093] Specifically, in this embodiment, the second width measuring component 6 is further designed by structuring it with the second telescopic arm 61 and the second width measuring support arm 62, which facilitates the maintenance or replacement of the equipment and further extends the overall service life of the equipment.

[0094] The first telescopic amount is the telescopic length of the first telescopic arm 51, and the second telescopic amount is the telescopic length of the second telescopic arm 61;

[0095] The first width measuring detection element 53 and the second width measuring detection element 63 are configured to:

[0096] When the first width measuring support arm 52 and the second width measuring support arm 62 clamp the steel coil 2, respectively obtain the first telescopic amount of the first telescopic arm 51 and the second telescopic amount of the second telescopic arm 61.

[0097] Specifically, in this embodiment, the first width measuring detection element 53 obtains the telescopic length of the first telescopic arm 51, where the first telescopic amount is the telescopic length of the first telescopic arm 51, and the second width measuring detection element 63 obtains the telescopic length of the second telescopic arm 61, where the second telescopic amount is the telescopic length of the second telescopic arm 61.

[0098] Furthermore, in some embodiments, the large moving arm position detection element 42 is further configured to:

[0099] Detect whether the large moving arm 41 of the measuring frame stops moving;

[0100] If so, the large moving arm position detection element 42 obtains the position change value of the large moving arm 41 of the measuring frame after a preset time interval and sends it to the controller 8;

[0101] The first width measuring detection element 53 is further configured to:

[0102] Detect whether the first telescopic arm 51 stops telescoping;

[0103] If so, after a preset time interval, the first width measurement detection element 53 obtains the first telescopic amount of the first telescopic arm 51 and sends it to the telescopic controller 8;

[0104] The second width measurement detection element 63 is further configured to:

[0105] Detect whether the second telescopic arm 61 stops telescoping;

[0106] If so, after a preset time interval, the second width measurement detection element 63 obtains the second telescopic amount of the second telescopic arm 61 and sends it to the telescopic controller 8.

[0107] Specifically, in this embodiment, by setting a preset time interval, the stability of size measurement is further improved, and the measurement error can also be further reduced.

[0108] Furthermore, in some embodiments, a moving boom hydraulic cylinder 43 is arranged inside the measuring frame base 3 along the axis direction of the measuring frame moving boom 41;

[0109] One end of the moving boom hydraulic cylinder 43 close to the steel coil 2 is connected to the measuring frame moving boom 41, and the moving boom hydraulic cylinder 43 is wirelessly connected to the moving boom position detection element 42;

[0110] The moving boom hydraulic cylinder 43 is configured to control the measuring frame moving boom 41 to move along a direction perpendicular to the axis of the steel coil 2, and the moving amount value has a preset range.

[0111] Specifically, in this embodiment, the measuring frame moving boom 41 is driven by the telescopic moving boom hydraulic cylinder 43 to move along a direction perpendicular to the axis of the steel coil 2. It should be noted that the telescopic moving boom hydraulic cylinder 43 realizes automatic operation through a supporting control system, and specific details are not limited here too much.

[0112] Among them, by setting a range for the amount of movement of the measuring frame moving boom 41 along a direction perpendicular to the axis of the steel coil 2, the situation of excessive telescoping of the telescopic moving boom hydraulic cylinder 43 is prevented, and the overall aging of the equipment is also slowed down to a certain extent.

[0113] Furthermore, in some embodiments, a first width measurement support hydraulic cylinder 511 is arranged on the first telescopic arm 51 along a direction perpendicular to the measuring frame moving boom 41;

[0114] One end of the first width measurement support hydraulic cylinder 511 close to the moving boom 41 of the measurement frame is connected to the first telescopic arm 51, and one end of the first width measurement support hydraulic cylinder 511 far from the moving boom 41 of the measurement frame is connected to the first width measurement support arm 52;

[0115] The first width measurement support hydraulic cylinder 511 is configured to control the first telescopic arm 51 to expand and contract along the direction perpendicular to the moving boom 41 of the measurement frame, and the amount of expansion and contraction has a preset range.

[0116] Specifically, in this embodiment, the first telescopic arm 51 is further designed, and the first width measurement support hydraulic cylinder 511 is arranged inside the first telescopic arm 51, and the expansion and contraction of the first telescopic arm 51 is realized by using the first width measurement support hydraulic cylinder 511.

[0117] A second width measurement support hydraulic cylinder 611 is arranged on the second telescopic arm 61 along the direction perpendicular to the moving boom 41 of the measurement frame;

[0118] One end of the second width measurement support hydraulic cylinder 611 close to the moving boom 41 of the measurement frame is connected to the second telescopic arm 61, and one end of the second width measurement support hydraulic cylinder 611 far from the moving boom 41 of the measurement frame is connected to the second width measurement support arm 62;

[0119] The second width measurement support hydraulic cylinder 611 is configured to control the second telescopic arm 61 to expand and contract along the direction perpendicular to the moving boom 41 of the measurement frame, and the amount of expansion and contraction has a preset range.

[0120] Specifically, in this embodiment, the second telescopic arm 61 is further designed, and the second width measurement support hydraulic cylinder 611 is arranged inside the second telescopic arm 61, and the expansion and contraction of the second telescopic arm 61 is realized by using the second width measurement support hydraulic cylinder 611.

[0121] Further, in some embodiments, the upper end of the first width measurement support arm 52 on the side far from the measurement frame base 3 has a first width measurement redundant element 54;

[0122] The upper end of the second width measurement support arm 62 on the side far from the measurement frame base 3 has a second width measurement redundant element 64;

[0123] The first width measurement redundant element 54 and the second width measurement redundant element 64 are wirelessly connected to the controller;

[0124] The first width measurement redundant element 54 and the second width measurement redundant element 64 are both configured for redundant functions to ensure the normal progress of width measurement.

[0125] Specifically, in this embodiment, by providing the first width measurement redundant element 54 on the first width measurement support arm 52 and the second width measurement redundant element 64 on the second width measurement support arm 62, it is ensured that the system can always operate normally, avoiding the problem that the system cannot continue to work due to failures of the first width measurement detection element 53 and / or the second width measurement detection element 63.

[0126] Furthermore, in some embodiments, an original position recognition element 411 is provided on the large moving arm 41 of the measuring frame;

[0127] At a position flush with the original position of the large moving arm 41 of the measuring frame on the measuring frame base 3, a detection limit for the original position of the moving arm 7 is provided;

[0128] The original position recognition element 411 is configured to emit an original position signal along the plane where it is located;

[0129] The detection limit 7 for the original position of the moving arm is configured as follows:

[0130] When the original position signal is first obtained, a control instruction for controlling the large moving arm hydraulic cylinder 43 to stop working is sent to the position detection element 42 of the large moving arm;

[0131] The control instruction is used to stop the large moving arm 41 of the measuring frame at the original position.

[0132] Specifically, in this embodiment, by providing the original position recognition element 411 on the large moving arm 41 of the measuring frame and the detection limit 7 for the original position of the moving arm at a position flush with the original position of the large moving arm 41 of the measuring frame on the measuring frame base 3, "zeroing" of the large moving arm 41 of the measuring frame is achieved, further improving the accuracy of the system in calculating the size of the steel coil 2.

[0133] Figure 3 It is a schematic flow diagram of a control method for a steel coil width and diameter measurement system in a cold rolling mill of the present application.

[0134] Refer to Figure 3 It can be seen that this embodiment also provides a control method for a steel coil width and diameter measurement system in a cold rolling mill, and the control method includes:

[0135] S100, obtaining the position change value of the large moving arm of the measuring frame;

[0136] S200, calculating the diameter size of the steel coil based on the position change value of the large moving arm of the measuring frame;

[0137] S300, obtaining the first telescopic amount of the first telescopic arm and the second telescopic amount of the second telescopic arm;

[0138] The S400 calculates the width of the steel coil based on the first telescopic amount and the second telescopic amount.

[0139] Specifically, in this embodiment, the acquisition of the position change value of the moving boom of the measuring frame is completed by the moving boom position detection element 42, and after obtaining the position change value of the moving boom of the measuring frame, it is sent to the controller 8;

[0140] The controller 8 calculates the diameter size of the steel coil 2 based on the position change value of the moving boom of the measuring frame and a preset value;

[0141] The acquisition of the first telescopic amount of the first telescopic arm and the second telescopic amount of the second telescopic arm are respectively completed by the first width measurement detection element 53 and the second width measurement detection element 63, and after obtaining the first telescopic amount and the second telescopic amount of the second telescopic arm, they are sent to the controller 8;

[0142] The controller 8 calculates the width of the steel coil 2 based on a preset value, the first telescopic amount, and the second telescopic amount of the second telescopic arm.

Claims

1. A steel coil width and diameter measuring system for a cold rolling mill, characterized in that, the system includes: a saddle (1), the saddle (1) is connected to the ground, the saddle (1) has a groove, and a steel coil (2) is placed on the groove; a measuring frame base (3), the measuring frame base (3) is arranged along the direction perpendicular to the axis of the steel coil (2); a diameter measuring component (4) arranged on the measuring frame base (3), the diameter measuring component (4) includes a measuring frame moving boom (41) slidably connected to the measuring frame base (3) along the direction perpendicular to the axis of the steel coil (2) and a moving boom position detecting element (42) arranged on the side of the measuring frame base (3) away from the steel coil; a first width measuring component (5) and a second width measuring component (6) arranged on the measuring frame moving boom (41), both the first width measuring component (5) and the second width measuring component (6) are perpendicular to the axis of the measuring frame moving boom (41) and are arranged on both sides of the measuring frame moving boom (41); both the first width measuring component (5) and the second width measuring component (6) are right-angle structures that can expand and contract along the direction perpendicular to the measuring frame moving boom (41), the right-angle openings face the steel coil (2), a first width measuring detecting element (53) is arranged on the first width measuring component (5), and a second width measuring detecting element (63) is arranged on the second width measuring component (6); a controller (8) wirelessly connected to the moving boom position detecting element (42), the first width measuring detecting element (53), and the second width measuring detecting element (63); the moving boom position detecting element (42) is configured to obtain the position change value of the measuring frame moving boom (41) and send it to the controller (8); the first width measuring detecting element (53) and the second width measuring detecting element (63) are configured to, when the first width measuring component (5) and the second width measuring component (6) clamp the steel coil (2), respectively obtain the first expansion amount of the first width measuring component (5) and the second expansion amount of the second width measuring component (6) in the direction perpendicular to the measuring frame moving boom (41), and send the first expansion amount and the second expansion amount to the controller (8); the controller (8) is configured to: calculate the diameter size of the steel coil according to the position change value of the measuring frame moving boom (41); calculate the width of the steel coil (2) according to the first expansion amount and the second expansion amount; a moving boom hydraulic cylinder (43) is arranged inside the measuring frame base (3) along the axis direction of the measuring frame moving boom (41); one end of the moving boom hydraulic cylinder (43) close to the steel coil (2) is connected to the measuring frame moving boom (41), and the moving boom hydraulic cylinder (43) is wirelessly connected to the moving boom position detecting element (42); the moving boom hydraulic cylinder (43) is configured to control the measuring frame moving boom (41) to move along the direction perpendicular to the axis of the steel coil (2), and the moving amount has a preset range; An original position recognition element (411) is provided on the measuring frame moving boom (41); A moving boom original position detection limit (7) is provided on the measuring frame base (3) at a position flush with the original position of the measuring frame moving boom (41); The original position recognition element (411) is configured to emit an original position signal along the plane where it is located; The moving boom original position detection limit (7) is configured as follows: When the original position signal is acquired for the first time, a control instruction for controlling the moving boom hydraulic cylinder (43) to stop working is sent to the moving boom position detection element (42); The control instruction is used to stop the measuring frame moving boom (41) at the original position.

2. A steel coil width and diameter measuring system for a cold rolling mill according to claim 1, wherein, The first width measuring assembly (5) further includes: A first telescopic arm (51) perpendicularly connected to the measuring frame moving boom (41), and the first telescopic arm (51) telescopes along a direction perpendicular to the measuring frame moving boom (41); A first width measuring support arm (52) perpendicularly provided on the first telescopic arm (51) and on the side away from the measuring frame base (3); The second width measuring assembly (6) further includes: A second telescopic arm (61) perpendicularly connected to the measuring frame moving boom (41), and the second telescopic arm (61) telescopes along a direction perpendicular to the measuring frame moving boom (41); A second width measuring support arm (62) perpendicularly provided on the second telescopic arm (61) and on the side away from the measuring frame base (3); The first telescopic amount is the telescopic length of the first telescopic arm (51), and the second telescopic amount is the telescopic length of the second telescopic arm (61); The first width measuring detection element (53) and the second width measuring detection element (63) are configured as follows: When the first width measuring support arm (52) and the second width measuring support arm (62) clamp the steel coil (2), the first telescopic amount of the first telescopic arm (51) and the second telescopic amount of the second telescopic arm (61) are respectively acquired.

3. A steel coil width and diameter measuring system for a cold rolling mill according to claim 2, wherein, The moving boom position detection element (42) is further configured to: Detect whether the measuring frame moving boom (41) stops moving; If so, the moving boom position detection element (42) acquires the position change value of the measuring frame moving boom (41) after a preset time interval and sends it to the controller (8); The first width measuring detection element (53) is further configured to: Detect whether the first telescopic arm (51) stops telescoping; If so, the first width measuring detection element (53) acquires the first telescopic amount of the first telescopic arm (51) after a preset time interval and sends it to the telescopic controller (8); The second width measuring detection element (63) is further configured to: Detect whether the second telescopic arm (61) stops telescoping; If so, the second width measuring detection element (63) acquires the second telescopic amount of the second telescopic arm (61) after a preset time interval and sends it to the telescopic controller (8).

4. A cold rolling mill steel coil width and diameter measuring system according to claim 2, characterized in that, a first width measuring support hydraulic cylinder (511) is provided on the first telescopic arm (51) along the direction perpendicular to the measuring frame moving boom (41); one end of the first width measuring support hydraulic cylinder (511) close to the measuring frame moving boom (41) is connected to the first telescopic arm (51), and the other end of the first width measuring support hydraulic cylinder (511) far from the measuring frame moving boom (41) is connected to the first width measuring support arm (52); the first width measuring support hydraulic cylinder (511) is configured to control the first telescopic arm (51) to expand and contract along the direction perpendicular to the measuring frame moving boom (41), and the amount of expansion and contraction has a preset range; a second width measuring support hydraulic cylinder (611) is provided on the second telescopic arm (61) along the direction perpendicular to the measuring frame moving boom (41); one end of the second width measuring support hydraulic cylinder (611) close to the measuring frame moving boom (41) is connected to the second telescopic arm (61), and the other end of the second width measuring support hydraulic cylinder (611) far from the measuring frame moving boom (41) is connected to the second width measuring support arm (62); the second width measuring support hydraulic cylinder (611) is configured to control the second telescopic arm (61) to expand and contract along the direction perpendicular to the measuring frame moving boom (41), and the amount of expansion and contraction has a preset range.

5. A cold rolling mill steel coil width and diameter measuring system according to claim 2, characterized in that, a first width measuring redundant element (54) is provided at the upper end of the first width measuring support arm (52) on the side far from the measuring frame base (3); a second width measuring redundant element (64) is provided at the upper end of the second width measuring support arm (62) on the side far from the measuring frame base (3); the first width measuring redundant element (54) and the second width measuring redundant element (64) are wirelessly connected to the controller; both the first width measuring redundant element (54) and the second width measuring redundant element (64) are configured with redundant functions to ensure the normal progress of width measurement.

6. A control method for a cold rolling mill steel coil width and diameter measuring system, characterized in that, the control method is applicable to the cold rolling mill steel coil width and diameter measuring system according to any one of claims 1 to 5, and the control method includes: obtaining the position change value of the measuring frame moving boom; calculating the diameter size of the steel coil according to the position change value of the measuring frame moving boom; obtaining the first expansion amount of the first telescopic arm and the second expansion amount of the second telescopic arm; calculating the width of the steel coil according to the first expansion amount and the second expansion amount.

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