Bar rolling quality stability monitoring device

Abstract

The utility model belongs to the technical field of bar rolling, and particularly relates to a bar rolling quality stability monitoring device which comprises a machine frame, at least two rolling mechanisms arranged on the machine frame, two temperature measuring pieces, a timing mechanism, a closing mechanism and an industrial control mechanism. The closing mechanism is provided with stopping pieces corresponding to the rolling mechanisms in number, the stopping pieces are arranged below rolling holes of the rolling mechanisms, and the rolling mechanisms, the temperature measuring piece, the timing mechanism and the stopping pieces are all in electric / signal connection with the industrial control mechanism. The industrial control mechanism collects quality control key parameters according to the temperature measuring piece and the timing mechanism, draws an SPC diagram in real time and obtains a key quality index CPK, and personal errors are reduced. And the industrial control mechanism judges whether the rolling process is qualified or not according to the key quality index CPK, so that the stop piece is controlled to be rotationally connected with the rolling mechanism to close or open the rolling hole, the quality control in the rolling production process is effectively controlled, and the production efficiency and the production quality are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bar rolling, and in particular relates to a device for monitoring the stability of bar rolling quality. Background Art

[0002] Titanium alloy tubes and bars have excellent mechanical properties and corrosion resistance, and are therefore widely used in applications requiring high strength, lightness, and durability. They are mainly used in aerospace, shipbuilding, chemical equipment, and other fields. Titanium alloy rolling is a hot working process, and strict temperature control is required in each rolling pass. Reasonable control of the temperature of each rolling pass can ensure that the product has good plasticity during the rolling process, while improving production efficiency and reducing costs. In addition, temperature and time control during the rolling of titanium alloy bars also have a direct impact on the performance and safety of the product. In certain applications, such as blades for aircraft engines and titanium alloy bolts for large ships, insufficient strength of titanium alloys due to problems with rolling time and temperature control may lead to major accidents.

[0003] Traditionally, quality control of the titanium alloy bar rolling process relies primarily on manual labor. Operators monitor rolling time and temperature using a stopwatch and temperature gun, recording the initial and final temperatures, and the duration of each pass in paper records. Ultimately, they calculate the time and temperature deviations and CPK values for each bar to determine whether the process meets requirements. This method is time-consuming and labor-intensive, subject to significant human intervention, and prone to recording errors.

[0004] Chinese patent CN105521996A discloses a hot roller heating rolling device and method for magnesium alloy strips. Specifically, the method uses a first infrared thermometer and a second infrared thermometer to measure the temperature of the rollers and the inlet and outlet ends of the rolled piece, respectively, every 5 seconds. When the rolled piece temperature meets the required temperature, rolling is continued. When the rolled piece temperature does not meet the set rolling temperature, the rolling temperature is corrected. This solution only focuses on the impact of temperature on rolling and does not mention strict control of rolling time. This can lead to abnormal rolling temperatures that do not meet expectations due to rolling time issues, resulting in unnecessary corrections to the rolling temperature. Furthermore, when the rolling temperature is determined to be abnormal, it is impossible to respond and control subsequent operations in a timely manner, affecting the overall rolling process, generating unnecessary rolled semi-finished products, and reducing rolling efficiency. Utility Model Content

[0005] In order to solve the above problems, the purpose of this utility model is to provide a bar rolling quality stability monitoring device, which aims to achieve real-time automatic collection of key quality parameters, reduce human errors, and improve production efficiency and production quality.

[0006] In order to achieve the above-mentioned purpose, the utility model proposes a bar rolling quality stability monitoring device, including a frame, at least two rolling mechanisms arranged on the frame, two temperature measuring components, a timing mechanism, a closing mechanism and an industrial control mechanism, the two temperature measuring components are respectively arranged on the two rolling mechanisms located at the beginning and end, the closing mechanism is provided with stoppers corresponding to the number of the rolling mechanisms, the stoppers are arranged below the rolling holes of the rolling mechanisms, the stoppers are rotatably connected to the rolling mechanisms to close or open the rolling holes, the rolling mechanisms, the temperature measuring components, the timing mechanisms and the stoppers are all electrically / signally connected to the industrial control mechanism.

[0007] Optionally, the timing mechanism is provided with a timing element corresponding to each rolling mechanism, and two adjacent timing elements respectively record the time when the bar enters the corresponding rolling mechanism to calculate the rolling transfer time.

[0008] Optionally, the timing element is a grating sensor.

[0009] Optionally, the temperature measuring component is a high-precision infrared thermometer.

[0010] Optionally, the closing mechanism includes a plurality of closing components, each of the closing components includes a driving member and a stop member, the driving member is provided on the rolling mechanism and connected to the industrial control mechanism, and the industrial control mechanism controls the driving member to drive the stop member to rotate relative to the rolling mechanism to open or close the rolling hole.

[0011] Optionally, the stop member includes a baffle and two hook arms located on both sides of the baffle, and one end of the hook arm away from the baffle is transmission-connected to the driving member, and the hook arm rotates and drives the baffle to abut against or away from the rolling mechanism.

[0012] Optionally, the bar rolling quality stability monitoring device further includes an alarm mechanism, and the alarm mechanism is electrically / signally connected to the industrial control mechanism.

[0013] Optionally, the alarm mechanism is configured as an indicator light; and / or, the alarm mechanism is configured as a sound prompter.

[0014] Optionally, the industrial control mechanism includes a data collector and an industrial control computer, and the data collector is electrically / signally connected to the temperature measuring component, the timing mechanism and the industrial control computer.

[0015] The present invention provides a device for monitoring the quality stability of bar rolling, including a frame, at least two rolling mechanisms mounted on the frame, two temperature measuring elements, a timing mechanism, a closing mechanism, and an industrial control mechanism. The two temperature measuring elements are mounted on the two rolling mechanisms at the beginning and end, respectively. The closing mechanism is equipped with a corresponding number of stoppers, each located below the rolling holes of the rolling mechanisms. The rolling mechanisms, temperature measuring elements, timing mechanism, and stoppers are all electrically / signally connected to the industrial control mechanism. The industrial control mechanism collects key quality control parameters based on the temperature measuring elements and timing mechanism, plots an SPC chart in real time, and derives the key quality indicator (CPK), thereby reducing human error. The industrial control mechanism determines whether the rolling process is qualified based on the key quality indicator (CPK), thereby controlling the stoppers to rotate in connection with the rolling mechanisms to close or open the rolling holes, effectively controlling quality control during the rolling production process and improving production efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the measurement control part of an embodiment of a device for monitoring the stability of rolling quality of bar material according to the present invention from a front view perspective.

[0017] Figure 2 This is a side view structural diagram of a measurement control part of an embodiment of a device for monitoring the stability of rolling quality of bar material according to the present invention.

[0018] Figure 3 This is a structural diagram of the judgment and early warning part of an embodiment of the bar rolling quality stability monitoring device of the present utility model.

[0019] In the figure: 100, rolling mechanism; 100A, punching hole; 300, rod; 400, temperature measuring component; 500, closing mechanism; 51, stopper; 511, hook arm; 512, baffle; 52, driving component; 600, grating sensor; 700, data collector; 800, industrial control computer; 900, alarm mechanism. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention clearer and more understandable, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] Reference Figures 1 to 3 As shown, the utility model provides a bar rolling quality stability monitoring device, which can be applied to the rolling production of metal, alloy and non-metallic bars 300. The following schemes are all described using titanium alloy bars 300 as an example.

[0022] like Figure 2As shown, the bar rolling quality stability monitoring device includes a frame, at least two rolling mechanisms 100 arranged on the frame, two temperature measuring components 400, a timing mechanism, a closing mechanism 500 and an industrial control mechanism. The two temperature measuring components 400 are respectively arranged on the two rolling mechanisms 100 located at the beginning and the end. The closing mechanism 500 is provided with a stopper 51 corresponding to the number of the rolling mechanisms 100. The stopper 51 is arranged below the rolling hole 100A of the rolling mechanism 100. The stopper 51 is rotatably connected to the rolling mechanism 100 to close or open the rolling hole 100A. The rolling mechanism 100, the temperature measuring component 400, the timing mechanism and the stopper 51 are all electrically / signally connected to the industrial control mechanism.

[0023] The present invention provides a device for monitoring the quality stability of bar rolling, including a frame, at least two rolling mechanisms 100 mounted on the frame, two temperature measuring elements 400, a timing mechanism, a closing mechanism 500, and an industrial control mechanism. The two temperature measuring elements 400 are mounted on the two rolling mechanisms 100 at the beginning and end, respectively. The closing mechanism 500 is equipped with a corresponding number of stoppers 51, each located below the rolling holes 100A of the rolling mechanisms 100. The rolling mechanisms 100, temperature measuring elements 400, timing mechanism, and stoppers 51 are all electrically and signal-connected to the industrial control mechanism. The industrial control mechanism collects key quality control parameters based on the temperature measuring elements 400 and timing mechanism, plots an SPC chart in real time, and derives a key quality indicator (CPK), thereby reducing human error. The industrial control mechanism determines whether the rolling process is qualified based on the key quality indicator CPK, thereby controlling the stopper 51 to rotate and connect with the rolling mechanism 100 to close or open the rolling hole 100A, effectively controlling the quality control in the rolling production process and improving production efficiency and production quality.

[0024] Optionally, the industrial control mechanism includes a data collector 700 and an industrial control computer 800 , and the data collector 700 is electrically / signally connected to the temperature measuring element 400 , the timing mechanism, and the industrial control computer 800 .

[0025] Optionally, the timing mechanism is provided with a timing element corresponding to each rolling mechanism 100 , and two adjacent timing elements respectively record the time when the titanium alloy bar 300 enters the corresponding rolling mechanism 100 to calculate the rolling transfer time.

[0026] Optionally, the timing component is a grating sensor 600 .

[0027] Optionally, the temperature measuring element 400 is a high-precision infrared thermometer.

[0028] It should be noted that this bar rolling quality stability monitoring device is suitable for a multi-roll mill with three-stage rolling (roughing, intermediate, and finishing). A worker feeds a titanium alloy bar 300 through the rolling hole 100A, where the rollers rotate to drive the titanium alloy bar 300 through the rolling hole 100A. As the titanium alloy bar 300 passes through the rolling hole 100A, the temperature measuring element 400 receives the hot material temperature signal and transmits it to the data acquisition device 700. The grating sensor 600 receives the hot material light signal, determines the material is at the rolling hole 100A, and transmits it to the data acquisition device 700. Both the temperature measuring element 400 and the grating sensor 600 are capable of connecting to an industrial control unit, enabling real-time transmission of measurement results to the data acquisition device 700. The data acquisition device 700 is connected to an industrial control computer 800, which transmits the processed data to the industrial control computer 800. The industrial control computer 800 then plots the SPC chart in real time and determines whether the CPK parameters meet the standards.

[0029] Combined with reference Figure 1 and Figure 2 As shown, optionally, the closing mechanism 500 includes a plurality of closing components, each closing component includes a driving member 52 (control motor) and a stop member 51, the driving member 52 is provided on the rolling mechanism 100 and is connected to the industrial control mechanism, and the industrial control mechanism controls the driving member 52 to drive the stop member 51 to rotate relative to the rolling mechanism 100 to open or close the rolling hole 100A.

[0030] Optionally, the stopper 51 includes a baffle 512 and two hook arms 511 located on either side of the baffle 512. The ends of the hook arms 511, which are away from the baffle 512, are in transmission connection with the driver 52. The hook arms 511 rotate and drive the baffle 512 to abut against or away from the rolling mechanism 100. The closing mechanism 500 is composed of a plurality of stoppers 51 and a driver 52 electrically connected thereto. The baffle 512 is driven by a control motor according to control instructions, thereby controlling whether the titanium alloy bar 300 is allowed to pass through the rolling hole 100A.

[0031] Optionally, the bar rolling quality stability monitoring device further includes an alarm mechanism 900 , which is electrically / signally connected to the industrial control mechanism.

[0032] In this embodiment, Figure 3 As shown, the alarm mechanism 900, the data collector 700 and the industrial control computer 800 constitute the judgment and warning part of the automatic judgment device for the dimensional quality stability of the titanium alloy bar 300. Figure 1The multi-roll mill temperature measuring device 400 and the grating sensor 600 are connected to collect and process real-time temperature and position data of the titanium alloy bar 300. An industrial computer 800 is connected to the closing mechanism 500 to control the rotation of at least one baffle 512 of the closing mechanism 500 to control the opening and closing of the rolling hole 100A. A data collector 700 is connected to the industrial computer 800 to transmit processed data to the industrial computer 800. The industrial computer 800 generates an SPC chart in real time and determines whether the CPK parameter is qualified. If the CPK value is found to be outside the specified range, an alarm signal is sent to the alarm mechanism 900.

[0033] Optionally, the alarm mechanism 900 is configured as an indicator light; and / or, the alarm mechanism 900 is configured as a sound prompter.

[0034] In this embodiment, the alarm mechanism 900 can use the flashing of the indicator light alone as an alarm signal, or use the sound prompter alone as an alarm signal, or use both as alarm signals at the same time. For example, as an audible and visual alarm, the alarm mechanism 900 flashes and issues an alarm.

[0035] In industrial control organizations, the data collector 700 is developed using embedded programming. Leveraging built-in modules like the 8266 for communication and data preprocessing, it allows for rapid deployment, startup, interaction, and shutdown. The industrial control computer 800 incorporates an SPC plotting module, a CPK automatic calculation module, and backend services. The frontend utilizes a Vue architecture for rapid data display and CPK calculation. The backend utilizes lightweight Docker containers for rapid deployment, startup, and shutdown.

[0036] The specific method of using the bar rolling quality stability monitoring device is as follows:

[0037] First, start the multiple rolling mechanisms 100, temperature measuring components 400, closing mechanisms 500, grating sensors 600, data collectors 700, and industrial computers 800 of the multi-roll rolling mill. After the rolling mechanism 100 is started, the hot titanium alloy bar 300 is placed into the left rolling hole 100A, and the titanium alloy bar 300 is driven by the rolling motor to pass through the rolling hole 100A.

[0038] The titanium alloy bar 300 is sequentially passed through each rolling hole 100A by the operator from left to right. When passing through the first and last rolling holes 100A on the left and right sides, two temperature measuring devices 400 respectively record the starting and ending rolling temperatures and transmit the data to the industrial control computer 800 via the data acquisition device 700. As the titanium alloy bar 300 passes through each rolling hole 100A, the corresponding grating sensor 600 records the time point at which the material passes through each rolling hole 100A based on the sensing signal. The rolling transfer time is calculated by calculating the difference in the time points at which the titanium alloy bar 300 passes through each rolling hole 100A. Based on the rolling transfer time and temperature, the industrial control computer 800 automatically determines whether to open the closing mechanism 500. If the processing conditions are not met, the baffle 512 is automatically driven to rotate to close the rolling hole 100A, preventing the material from completing the rolling.

[0039] It should be noted that the rolling transfer time is calculated by the grating sensor 600, and then the starting rolling temperature and the final rolling temperature are combined to judge whether the rolling process is qualified, thereby determining whether the baffle 512 is closed or the rolling hole 100A is opened. As a result, the entire device only needs to be equipped with two temperature measuring components 400, and there is no need to set a temperature measuring component 400 on each rolling mechanism 100, which reduces the investment in material costs and can also accurately control the rolling process.

[0040] Based on the incoming data, industrial computer 800 automatically plots SPC analysis charts for the starting and ending rolling temperatures and rolling transfer time. It also calculates the CPK value based on the incoming real-time data. If the calculated CPK value for the titanium alloy bar 300 is less than 1.33, the bar is deemed unqualified and the aforementioned alarm mechanism 900 is activated. The closing mechanism 500 is then controlled to rotate the baffle 512 to close the rolling hole 100A, notifying the operator to stop the operation and conduct an inspection.

[0041] The rolling production using the above-mentioned bar rolling quality stability monitoring device can calculate and collect key quality control parameters in real time without human intervention, draw SPC charts in real time and derive key quality indicators CPK, without the need for subsequent measurement and calculation. The system device is fixed in position, and the operator only needs to perform normal operations to automatically measure, reducing human errors. With fully automatic measurement, early warning and quality intervention, the operator only needs to perform normal operations, reducing labor costs. Once the temperature or rolling time is measured to be out of standard, an automatic alarm can be issued and the operation can be stopped in time through the baffle 512 to ensure that the rolled product is qualified, thereby improving the quality control of the production process. The system can respond efficiently to abnormal situations, accurately measure, collect and calculate the rolling temperature and rolling time, making the rolling quality of titanium alloy bar 300 stable and having broad application prospects.

[0042] In the present invention, if the terms "inside", "outside", "upper", "lower" and the like indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the utility model is usually placed when in use, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply 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 application.

[0043] In this utility model, unless otherwise specified or limited, the terms "dispose," "install," "fix," and "connect" should be understood in a broad sense. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also mean internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A device for monitoring the stability of bar rolling quality, characterized in that: It includes a frame, at least two rolling mechanisms arranged on the frame, two temperature measuring components, a timing mechanism, a closing mechanism and an industrial control mechanism. The two temperature measuring components are respectively arranged on the two rolling mechanisms located at the beginning and the end. The closing mechanism is provided with stoppers corresponding to the number of the rolling mechanisms. The stoppers are arranged below the rolling holes of the rolling mechanisms. The stoppers are rotatably connected to the rolling mechanisms to close or open the rolling holes. The rolling mechanisms, the temperature measuring components, the timing mechanism and the stoppers are all electrically / signally connected to the industrial control mechanism.

2. The bar rolling quality stability monitoring device according to claim 1, characterized in that: The timing mechanism is provided with a timing piece corresponding to each rolling mechanism, and two adjacent timing pieces respectively record the time when the bar enters the corresponding rolling mechanism to calculate the rolling transfer time.

3. The bar rolling quality stability monitoring device according to claim 2, characterized in that: The timing component is a grating sensor.

4. The bar rolling quality stability monitoring device according to claim 1, characterized in that: The temperature measuring component is a high-precision infrared thermometer.

5. The bar rolling quality stability monitoring device according to claim 1, characterized in that: The closing mechanism includes a plurality of closing components, each of which includes a driving member and a stop member. The driving member is arranged on the rolling mechanism and connected to the industrial control mechanism. The industrial control mechanism controls the driving member to drive the stop member to rotate relative to the rolling mechanism to open or close the rolling hole.

6. The device for monitoring the stability of rolling quality of a bar according to claim 5, characterized in that: The stopper includes a baffle and two hook arms located on both sides of the baffle. One end of the hook arm away from the baffle is transmission-connected to the driving member. The hook arm rotates and drives the baffle to abut against or away from the rolling mechanism.

7. The device for monitoring the stability of rolling quality of a bar according to any one of claims 1 to 6, characterized in that: The bar rolling quality stability monitoring device further includes an alarm mechanism, which is electrically / signally connected to the industrial control mechanism.

8. The bar rolling quality stability monitoring device according to claim 7, characterized in that: The alarm mechanism is configured as an indicator light; and / or, the alarm mechanism is configured as a sound prompter.

9. The bar rolling quality stability monitoring device according to any one of claims 1 to 6, characterized in that: The industrial control mechanism includes a data collector and an industrial control computer. The data collector is electrically / signally connected to the temperature measuring component, the timing mechanism and the industrial control computer.

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