Flying shear intelligent control system and method

Abstract

The present invention discloses an intelligent control system and method for a flying shear. The system includes a flying shear and a flying shear control system for controlling the flying shear. A shearing material collecting device is provided below the flying shear, and a shearing material visual recognition device is provided at the outlet of the shearing material collecting device. The signal of the shearing material visual recognition device is output to the flying shear control system to control the start-up time of the shears of the flying shear. The method includes: the visual recognition device recognizes the shape of the shearing material, and transmits the length parameter to the flying shear control system, and the flying shear control system optimizes the start-up time of the flying shear by calculating the difference between the theoretical length and the actual length of the shearing material and the running speed of the blank. The present invention can realize the online adjustment of the shearing material length of the flying shear shearing blank. When the theoretical length of the shearing material changes, the start-up time of the flying shear can be optimized by the control system by comparing the difference between the actual length and the theoretical length of the shearing material for multiple times, so as to realize the online adjustment of the shearing material length.

Description

Technical Field

[0001] The invention relates to a flying shear intelligent control system and method. Background Art

[0002] In the process of bar and wire production, in the existing bar and wire production process, several flying shears are arranged according to the arrangement of the units to shear the head or tail of the rolled steel billet to ensure the quality of the finished product. Under the condition that the existing control system can only achieve fixed-length shearing, in order to ensure safe production, the sheared material is often too long, which reduces the yield rate of the product.

[0003] The traditional flying shear control system is that when the blank passes through the hot metal detector, the control system controls the start time of the flying shear by calculating the distance between the hot metal detector and the shearing position of the flying shear, the shearing material length, the blank speed, the delay of the control system, the running time from the flying shear stop position to the shearing position, and other parameters to achieve fixed-length shearing of the sheared material. However, the information of the actual shearing length of the sheared material cannot be fed back to the control system, and the precise control of the shearing length cannot be achieved. Summary of the invention

[0004] In view of the above problems, the present invention relates to an intelligent control system and method for a flying shear.

[0005] To achieve the above-mentioned purpose, the flying shear intelligent control system of the present invention comprises a flying shear and a flying shear control system for controlling the flying shear, a shear material collecting device is arranged below the flying shear, and a shear material visual recognition device is arranged at the discharge port of the shear material collecting device; the signal of the shear material visual recognition device is output to the flying shear control system to control the starting time of the shears of the flying shear.

[0006] Furthermore, the shear material collection device comprises: a chute arranged at an angle, a first collection frame is arranged at the lower opening of the chute; a second collection frame is arranged on one side of the chute, and a discharge port is arranged on the chute corresponding to the second collection frame; a rotating plate is arranged on the bottom plate of the chute at the discharge port,

[0007] A driving device drives the rotating plate to rotate along the bottom plate of the chute so that it is located at the first working position or the second working position; when the rotating plate is located at the first working position, the material in the chute falls into the first collecting frame along the chute, and when the rotating plate is located at the second working position, the material in the chute falls into the second collecting frame along the chute and the rotating plate.

[0008] Furthermore, a guide device is provided at the discharge port, a plurality of compressed air nozzles are provided in the guide device, and an air inlet end of the compressed air nozzle is connected to a compressed air pipeline.

[0009] Furthermore, one or more openings are provided on the chute in the discharge port, and nozzles are provided in the openings; the nozzles are connected to the water pipes.

[0010] Furthermore, a controlled gate is provided at the discharge port, and a temperature detection device is provided in the discharge port;

[0011] It also includes a control device, the input end of which is connected to the temperature detection device; and the output end of which is connected to the controlled gate.

[0012] Furthermore, the visual recognition device includes a front chute and a rear chute arranged at intervals corresponding to the discharge port, a connecting bracket is arranged in the gap between the front chute and the rear chute, a rotating pan-tilt platform is arranged on the connecting bracket, and a camera device is installed on the rotating pan-tilt platform.

[0013] To achieve the above object, the control method of the above-mentioned flying shear intelligent control system of the present invention comprises the following steps:

[0014] The visual recognition device identifies the shape of the sheared material and transmits the length parameter to the flying shear control system. The flying shear control system optimizes the start time of the flying shear by calculating the difference between the theoretical length and the actual length of the sheared material and the running speed of the blank.

[0015] Furthermore, the step of optimizing the start-up time of the flying shears includes: when the actual length of the sheared material is shorter than the theoretical length, advancing the start-up time of the shears; when the actual length of the sheared material is longer than the theoretical length, delaying the start-up time of the shears.

[0016] Furthermore, the steps also include: after the shears optimize the start-up time for shearing, the sheared material is collected again, and the shape is identified on the detection platform and the length parameters are transmitted to the flying shear control system, and the start-up time of the flying shear is optimized again through the control system.

[0017] Furthermore, the steps also include: after the visual recognition device recognizes the shape of the sheared material, when the straight line segment of the sheared material is too long, shortening the length of the sheared material; when the sheared material has only special-shaped segments but no straight line segments, increasing the length of the sheared material; when the shape of the sheared material shows abnormal fluctuations, issuing an alarm.

[0018] To solve the above problems, the present invention uses visual recognition technology to identify and analyze the shape of the sheared material sheared by the flying shear during the rolling process of rods and wires, which serves as the basis for the flying shear control system to control the flying shear, optimize the start-up time of the flying shear, and realize closed-loop control of the length of the sheared material, thereby solving the problem of the normal section being too long during the shearing process and reducing shearing waste.

[0019] The present invention firstly shears the blank under the original control logic, collects the sheared material under the sheared material chute, and transports it to the designated inspection platform. The visual recognition device identifies the shape of the sheared material and transmits the length parameter to the flying shear control system. The control system optimizes the start time of the shearing by calculating the difference between the theoretical length and the actual length of the sheared material and the running speed of the blank. When the actual length of the sheared material is shorter than the theoretical length, the start time of the shears is advanced; when the actual length of the sheared material is longer than the theoretical length, the start time of the shears is delayed. After the shears shear at the optimized start time, the sheared material cut by the flying shear is collected again, and the shape is identified on the inspection platform and the length parameter is transmitted to the flying shear control system. The start time of the flying shear is optimized again by the control system. By repeating the above process, closed-loop precise control of the length of the sheared material can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the schematic diagram of the intelligent control of the flying shear.

[0021] Figure 2 It is a schematic diagram of the non-working state of the flying shear intelligent control system.

[0022] Figure 3 It is a working state diagram of the flying shear intelligent control system.

[0023] Figure 4 yes Figure 2 Schematic cross-sectional view of .

[0024] Figure 5 Schematic diagram of the structural distribution of the visual recognition device.

[0025] Figure 6 It is a schematic cross-sectional view of a visual recognition device.

[0026] Figure 7 It is a cross-sectional schematic diagram of a cooling device.

[0027] Figure 8 Schematic diagram of the structure of the inclusion removal device. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In one embodiment of the present invention, the flying shear intelligent control system of the present invention comprises a flying shear 99, a shear material collecting device is arranged below the flying shear 99, and comprises a fixed plate 1, a rotating plate 2, a pin 3, a rotating plate cylinder 4, a V-shaped groove 7, and a telescopic rod 8;

[0033] The specific structure includes: a chute 88 arranged at an angle, a first collection frame 10 is arranged at the lower opening of the chute; a second collection frame 11 is arranged on one side of the chute, and a discharge port is arranged on the chute corresponding to the second collection frame 11; a visual recognition device 9 is arranged at the discharge port;

[0034] A rotating plate 2 is arranged perpendicular to the chute bottom plate at the discharge port.

[0035] A driving device drives the rotating plate 2 to rotate along the bottom plate of the chute so that it is located at the first working position or the second working position; when the rotating plate is located at the first working position, the material in the chute falls into the first collecting frame 10 along the chute, and when the rotating plate is located at the second working position, the material in the chute falls into the second collecting frame 11 along the chute and the rotating plate.

[0036] Figure 1 An embodiment of the present invention is shown, comprising:

[0037] The fixed plate 1 is arranged on the chute 88 at the lower side of the flying shear 99, and the pin is arranged on the side of the chute at the lower side of the flying shear, on which a rotating plate 2 is arranged, and the rotating plate is arranged on the pin 3 and can rotate on the chute. The rotating plate cylinder 4 is installed on the bottom surface of the chute bottom plate, and is used to drive the pin 3 through the connecting piece to drive the rotating plate to rotate.

[0038] When the sheared material needs to be inspected, the rotating plate 2 rests on the fixed plate 1, and the sheared material falls from the flying shear and is collected to the outside of the gate 5 at the discharge port through the rotating plate 2. When the sheared material slides through the V-shaped groove 7, it will be recognized by the visual recognition device 9 thereon (photographed or filmed), and the sheared material will be discharged into the second collection frame 10 through the V-shaped groove. Among them, the visual recognition device 9 is composed of a camera and a computer, and the camera is installed on the V-shaped groove 7 through a bracket.

[0039] The driving rod 8 can adjust the angle of the V-shaped groove 7 to control the falling speed of the sheared material. The driving rod 8 is preferably an electric telescopic rod to better control the angle of the V-shaped groove.

[0040] When there is no need to detect the sheared material, the rotating plate 2 leans against the side of the chute body, and the sheared material directly passes through the chute into the first collecting frame.

[0041] As a further improvement of the present invention, a cooling and cleaning device is also included, including a nozzle 41, which is arranged in an opening on the chute, and each nozzle is connected by a water pipe 411, and pressurized cooling water flows in the water pipe.

[0042] A guide device 73 is arranged behind the discharge port, and a compressed air interface 733, an annular air channel 732, and an air jet port 731 are arranged in the guide device 73.

[0043] A gate 51 is provided between the nozzle 41 and the guide device, and the gate 51 is provided with a driving device to control the lifting and lowering of the gate.

[0044] The shear material water spray cooling position is provided with a temperature measuring device (temperature sensor) 42 installed via a temperature measuring bracket.

[0045] After the sheared material falls along the rotating plate, it is blocked by the gate 51 and cooled by spraying through the nozzle; the temperature measuring device 42 detects the temperature of the sheared material; when the sheared material drops to the specified temperature and the radiant heat of the red steel is eliminated, the gate 51 opens; the sheared material enters the guide device 73, and the compressed air in the guide device 73 blows the surface of the sheared material in reverse; the outlet of the guide device 73 is accurately set at the center of the chute inlet to ensure that the sheared material falls into the chute without any blockage.

[0046] The V-shaped groove 7 includes a front chute 71 and a rear chute 72 arranged at intervals corresponding to the material outlet, and the visual recognition device is arranged at the gap between the front chute and the rear chute, and includes a connecting bracket 91, on which a camera device 93 is arranged. In order to facilitate comprehensive photography of the sheared material, a rotating platform 92 is arranged on the connecting bracket, and the camera device 93 is installed on the rotating platform 92.

[0047] The method of the present invention is as follows: first, under the original control logic, the flying shear shears the blank, and the sheared material under the sheared material chute is collected and transported to the designated detection platform. The visual recognition device identifies the shape of the sheared material and transmits the length parameter to the flying shear control system. The control system optimizes the start time of the flying shear by calculating the difference between the theoretical length and the actual length of the sheared material and the running speed of the blank. When the actual length of the sheared material is shorter than the theoretical length, the start time of the shears is advanced; when the actual length of the sheared material is longer than the theoretical length, the start time of the shears is delayed. After the shears shear at the optimized start time, the sheared material cut by the flying shear is collected again, and the shape is identified on the detection platform and the length parameter is transmitted to the flying shear control system. The start time of the flying shear is optimized by the control system again. By repeating the above process, closed-loop precise control of the length of the sheared material can be achieved.

[0048] The present invention can realize online adjustment of the shearing length of the blank sheared by the flying shear. When the theoretical length of the sheared material changes, the difference between the actual length of the sheared material and the theoretical length can be compared multiple times, and the start time of the flying shear can be optimized through the control system to realize online adjustment of the shearing length.

[0049] The present invention can realize the intelligent shearing of blanks by flying shears. After the visual recognition device recognizes the shape of the sheared material, the flying shear start time can be optimized through the control system according to the shape of the sheared material: when the straight section of the sheared material is too long, the length of the sheared material is shortened; when the sheared material has only special-shaped sections but no straight sections, the length of the sheared material is increased; when the shape of the sheared material fluctuates abnormally, an alarm is issued.

[0050] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0051] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A flying shear intelligent control system, characterized in that: The system includes a flying shear and a flying shear control system for controlling the flying shear, a sheared material collecting device is arranged below the flying shear, and a sheared material visual identification device is arranged at the discharge port of the sheared material collecting device; The signal of the shear material visual recognition device is output to the flying shear control system to control the starting time of the flying shear; The shear material collecting device comprises: a chute arranged at an angle, a first collecting frame is arranged at the lower opening of the chute; a second collecting frame is arranged on one side of the chute, a discharge port is arranged on the chute corresponding to the second collecting frame; a rotating plate is arranged on the bottom plate of the chute at the discharge port, A driving device drives the rotating plate to rotate along the bottom plate of the chute so that the rotating plate is located at the first working position or the second working position; when the rotating plate is located at the first working position, the material in the chute falls into the first collecting frame along the chute, and when the rotating plate is located at the second working position, the material in the chute falls into the second collecting frame along the chute and the rotating plate; A guide device is provided at the discharge port, a plurality of compressed air nozzles are provided in the guide device, and the air inlet end of the compressed air nozzle is connected to the compressed air pipeline; One or more openings are arranged on the chute in the discharge port, and nozzles are arranged in the openings; the nozzles are connected to the water pipes; A controlled gate is provided at the discharge port, and a temperature detection device is provided in the discharge port; It also includes a control device, wherein the input end of the control device is connected to the temperature detection device; the output end of the control device is connected to the controlled gate; The visual recognition device includes a front chute and a rear chute arranged at intervals corresponding to the discharge port, a connecting bracket is arranged in the gap between the front chute and the rear chute, a rotating pan head is arranged on the connecting bracket, and a camera device is installed on the rotating pan head.

2. A control method for a flying shear intelligent control system according to claim 1, characterized in that: The method comprises the following steps: using a nozzle arranged in an opening on the chute to clean and cool the sheared material; The sheared material is dried and cleaned by using multiple compressed air nozzles arranged in the discharge port guide device; The visual recognition device is used to identify the shape of the sheared material after drying and cleaning, and the length parameters are transmitted to the flying shear control system. The flying shear control system optimizes the start time of the flying shear by calculating the difference between the theoretical length and the actual length of the sheared material and the running speed of the blank.

3. The control method of the flying shear intelligent control system according to claim 2, characterized in that: The step of optimizing the start-up time of the flying shears includes: when the actual length of the sheared material is shorter than the theoretical length, the start-up time of the shears is advanced; when the actual length of the sheared material is longer than the theoretical length, the start-up time of the shears is delayed.

4. The control method of the flying shear intelligent control system according to claim 2, characterized in that: The steps also include: after the shears optimize the start-up time for shearing, the sheared material cut by the flying shear is collected again, and the shape is identified on the detection platform and the length parameters are transmitted to the flying shear control system, and the start-up time of the flying shear is optimized again through the control system.

5. The control method of the flying shear intelligent control system according to claim 2, characterized in that: The steps also include: after the visual recognition device recognizes the shape of the sheared material, when the straight line segment of the sheared material is too long, shortening the length of the sheared material; when the sheared material has only a special-shaped segment but no straight line segment, increasing the length of the sheared material; when the shape of the sheared material fluctuates abnormally, an alarm is issued.

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