WO2024113741A1 - 一种钢丝帘布检测装置 - Google Patents

一种钢丝帘布检测装置 Download PDF

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Publication number
WO2024113741A1
WO2024113741A1 PCT/CN2023/097786 CN2023097786W WO2024113741A1 WO 2024113741 A1 WO2024113741 A1 WO 2024113741A1 CN 2023097786 W CN2023097786 W CN 2023097786W WO 2024113741 A1 WO2024113741 A1 WO 2024113741A1
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WO
WIPO (PCT)
Prior art keywords
steel cord
magnetic
magnetic module
module
detection device
Prior art date
Application number
PCT/CN2023/097786
Other languages
English (en)
French (fr)
Inventor
王虎岩
戚务昌
吕守臣
王凤秀
曹慧俐
Original Assignee
威海华菱光电股份有限公司
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Publication date
Application filed by 威海华菱光电股份有限公司 filed Critical 威海华菱光电股份有限公司
Publication of WO2024113741A1 publication Critical patent/WO2024113741A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws

Definitions

  • the present application relates to the field of industrial nondestructive testing, and in particular to a steel cord testing device.
  • Steel cord is an important component of tires. It consists of an outer rubber layer and steel cords wrapped inside the rubber layer at equal intervals. As the tire belt layer, it provides important support for strengthening the structural strength and load-bearing of the tire. As an important semi-finished product of tires, steel cords may be unevenly distributed, bent, misplaced, disconnected, crossed, etc. during the manufacturing process due to production equipment and process flow. If the distribution of steel wires in the steel cord cannot be detected in real time, it will have an adverse effect on the quality of the steel cord and even directly affect the quality and safety of the tire.
  • Patent CN 113820386 A and Patent CN 216747548 U use a magnetic field unit to generate a background magnetic field to generate a magnetic field in the steel wire in the steel cord, and then use a magnetic sensor unit to obtain the effective magnetic field signal of the steel wire.
  • the defects inside the steel cord are judged based on the presence or absence of the magnetic field signal, the change period of the signal and other characteristics. It is economical, safe and convenient.
  • the existing steel cord will produce a lot of steel wire debris during the cutting process. Under normal circumstances, these debris are scattered and adhered to the steel cord, and will not affect the quality of the steel cord.
  • the steel cord detection device with the addition of a magnetic field unit will adsorb the steel wire debris on the steel cord to the magnetic field unit due to its magnetism. As the steel cord moves, the steel wire debris will accumulate at both ends of the steel cord detection device. After accumulating to a certain extent, especially after replacing steel cords of different widths, the accumulated steel wire debris may fall onto the steel cord. A large amount of steel wire debris accumulated on the steel cord will affect the quality of the steel cord. Since the detection channel formed between the magnetic field unit and the magnetic sensor detection unit for accommodating the steel cord to pass through is small and fixed, it is very troublesome to clean the steel wire debris.
  • the purpose of the present application is to provide a steel cord detection device based on a magnetic field to solve the problems of steel cord debris accumulation and difficulty in cleaning in existing steel cord detection devices, thereby avoiding the situation where steel cord debris adsorbed by the magnetic field unit falls onto the steel cord and affects the quality of the steel cord.
  • a steel cord detection device is used to obtain an effective magnetic field signal of the steel cord and detect the arrangement of steel cords in the steel cord based on the effective magnetic field signal of the steel cord to check for defects of the steel cord, comprising:
  • a debris collection and cleaning unit comprising a magnetic module, wherein the magnetic module is used to collect steel wire debris on the steel cord;
  • a magnetic field unit used for generating a background excitation magnetic field
  • a magnetic sensor unit used for acquiring an effective magnetic field signal of the steel cord, wherein the magnetic sensor unit and the magnetic field unit are arranged opposite to each other on both sides of the steel cord to form a detection channel for the steel cord;
  • the control and execution unit is used to realize the overall control of the device and detect the arrangement of the steel cord according to the effective magnetic field signal.
  • extension direction of the magnetic module is perpendicular to the running direction of the steel cord and parallel to the length direction of the magnetic field unit;
  • the magnetic module is located at the entrance of the detection channel.
  • the number of the magnetic module is one, and the magnetic module is located on one side of the width of the steel cord fabric.
  • the number of the magnetic modules is two, and the magnetic modules are arranged oppositely on two sides of the width of the steel cord fabric.
  • a first bracket the magnetic module is fixed to the frame of the steel cord detection device through the first bracket, and the first bracket is located outside the width of the steel cord;
  • a linear magnet array comprising a plurality of magnets arranged at intervals along an extending direction of the magnetic module
  • a first frame, the first frame is made of a non-magnetic material that will not be magnetized, and is used to accommodate and fix the linear magnet array;
  • a reinforcing plate wherein the reinforcing plate is parallel to the width of the steel cord and is fixedly connected to a side of the first frame away from the steel cord;
  • a cover plate is arranged on a surface of the first frame body facing the steel cord fabric, and the cover plate is made of a magnetic material that will not be magnetized.
  • the debris collection and cleaning unit further comprises a flipping mechanism, which is rotatably mounted at both ends of the magnetic module;
  • the flipping mechanism is used to realize the flipping of the magnetic module.
  • the flipping mechanism comprises:
  • a fixing frame the fixing frame is fixedly connected to the upper part of the magnetic module, and the fixing frame is provided with a sliding groove;
  • a driving shaft used for connecting with an external driving device
  • the driving shaft being rotatably connected to the second support
  • the fixing frame and the second support are connected to each other by rotating around the axis.
  • a connecting rod one end of which is rigidly connected to the drive shaft
  • a roller is slidably connected to the slide groove, the roller is inserted into the slide groove, and the roller is fixedly connected to the connecting rod.
  • the debris collection and cleaning unit further comprises an automatic cleaning device, and the automatic cleaning device is used to absorb the steel wire debris attached to the surface of the magnetic module;
  • the automatic cleaning device is arranged opposite to the reinforcing plate.
  • the automatic cleaning device comprises:
  • a collecting cover used for collecting steel wire debris located on the surface of the magnetic module
  • a vacuum suction pipe used to collect the wire debris in the collection cover to the external collection device, one end of which is connected to the external collection device and the other end is connected to the collection cover;
  • a pulley, the pulley is driven to rotate by the motor
  • a motor used for being electrically connected to the pulley and driving the pulley to operate
  • a belt wherein the belt is sleeved on the pulley and the belt can reciprocate under the drive of the pulley;
  • a coupling used to connect the motor and the pulley so that the motor and the pulley rotate together
  • a connecting bracket used for connecting the collecting cover and the belt
  • the brush bristles are used to sweep up the steel wire debris on the surface of the magnetic module, and the brush bristles are located on a side of the collecting cover facing the magnetic module.
  • the debris collection and cleaning unit also includes a rotating opening and closing mechanism, and the rotating opening and closing mechanism is used to realize the vertical/horizontal rotation of the magnetic module.
  • first bracket includes a second fixed bracket and a second rotating bracket, and the second fixed bracket and the second rotating bracket are respectively located outside the width of the steel cord fabric;
  • the rotating opening and closing mechanism comprises:
  • a second rotation axis used to realize the rotation connection between the reinforcing plate and the second rotation bracket, and the reinforcing plate can rotate around the second rotation axis;
  • the second fixing pin is used to realize a detachable connection between the reinforcing plate and the second fixing bracket.
  • the magnetic module includes a first magnetic module and a second magnetic module, and the extension directions of the first magnetic module and the second magnetic module are both perpendicular to the running direction of the steel cord;
  • the first magnetic module and the second magnetic module are respectively rotatably connected to the first bracket outside the steel cord fabric through a rotating opening and closing mechanism;
  • the rotating opening and closing mechanism includes a second rotating shaft, which is used to realize the rotating connection between the reinforcing plate and the first bracket, and the reinforcing plate can rotate around the second rotating shaft.
  • the magnetic module is used to absorb the steel wire debris on the steel cord, which can avoid the problem of affecting the quality of the steel cord due to the presence of steel wire debris on the steel cord;
  • the magnetic module is moved away from the steel cord by a flipping mechanism or a rotating opening and closing mechanism, so that steel wire debris on the steel cord can be easily removed;
  • the wire debris can be automatically cleaned, improving efficiency and reducing labor costs.
  • FIG1 is a top view of a first embodiment of a steel cord detection device in the present application.
  • FIG2 is a side view of a first embodiment of a steel cord detection device in the present application.
  • FIG3 is a partial enlarged view of the A area in FIG2 of the present application.
  • FIG4 is an overall structural diagram of a second embodiment of a steel cord detection device in the present application.
  • FIG5 is a top view of a second embodiment of a steel cord detection device in the present application.
  • FIG6 is a side view of the turning mechanism in the second embodiment of the steel cord detection device in the present application before turning over;
  • FIG7 is a side view of the turning mechanism in the second embodiment of the steel cord detection device in the present application after turning over;
  • FIG8 is a side view of a third embodiment of a steel cord detection device in the present application.
  • FIG9 is an overall structural diagram of the automatic cleaning device in Embodiment 3 of the steel cord detection device in the present application.
  • FIG10 is an overall structural diagram of a fourth embodiment of a steel cord detection device in the present application.
  • FIG11 is a top view of a fourth embodiment of a steel cord detection device in the present application.
  • FIG12 is a front view of a fourth embodiment of a steel cord detection device in the present application.
  • FIG13 is a top view of a fifth embodiment of a steel cord detection device in the present application.
  • FIG14 is a top view of the undeployed rotating opening and closing mechanism in the sixth embodiment of the steel cord detection device in the present application.
  • FIG15 is a top view of the unfolded rotating opening and closing mechanism in the sixth embodiment of the steel cord detection device in the present application.
  • FIG16 is a top view of the magnetic field unit in the seventh embodiment of the steel cord detection device in the present application without being unfolded;
  • FIG17 is a top view of the unfolded magnetic field unit in Embodiment 7 of the steel cord detection device in the present application.
  • FIG. 18 is a side view of the eighth embodiment of the steel cord detection device in the present application.
  • Words importing the singular also include the plural and vice versa.
  • Figures 1 and 2 show a top view and a side view of a first embodiment of a steel cord detection device in the present application.
  • the steel cord detection device includes a magnetic field unit 2 and a magnetic sensor unit 3.
  • the magnetic field unit 2 and the magnetic sensor unit 3 are arranged opposite to each other on both sides of the width of the steel cord 1 to form a detection channel for accommodating the steel cord 1 to pass through.
  • FIG 3 shows the specific structure of the magnetic field unit 2 and the magnetic sensor unit 3 in the present application.
  • the magnetic field unit 2 is used to generate a background excitation magnetic field.
  • the magnetic field unit 2 includes a first magnet 23.
  • the first magnet 23 is a long strip magnet extending along the extension direction of the magnetic module 40 or a plurality of magnets arranged at intervals along the extension direction of the magnetic module 40.
  • the magnet includes a permanent magnet or an electromagnet with stable magnetic properties, wherein the magnetic field strength of the permanent magnet can be changed according to its magnetic material, and the electromagnet can adjust the strength by controlling the magnitude of the current passing through.
  • the magnetic field unit 2 also includes a magnetic conductive plate 22, which is located on the surface of the first magnet 23 facing the steel cord fabric 1 and extends along the extension direction of the magnetic module 40, and is used to balance the magnetic field and guide the background excitation magnetic field to be evenly distributed, so that the distribution of the background magnetic field strength and direction is more uniform.
  • the magnetic field unit 2 further includes a frame 21 , which is made of a non-magnetic material that will not be magnetized and is used to accommodate and fix the first magnet 23 .
  • the magnetic sensor unit 3 includes a detection sensing chip 31, a second substrate 32, a logic integrated control chip 33, a second frame 34 and a second cover plate 35, and is used to obtain an effective magnetic field signal of the steel cord fabric.
  • the detection sensing chip 31 is one or more sensing chip arrays arranged along the extension direction of the magnetic module 40 , and the detection sensing chips 31 are arranged at intervals on the surface of the second substrate 32 facing the steel cord 1 to obtain effective magnetic field signals of the steel cord 1 .
  • the second substrate 32 is parallel to the width of the steel cord fabric 1 .
  • the second substrate 32 is made of a non-magnetic material that will not be magnetized. It is used to fix the detection sensor chip 32 and is not magnetized.
  • the logic integrated control chip 33 includes multiple input terminals and one output terminal.
  • the multiple input terminals are electrically connected to multiple detection sensing chips 31 one by one.
  • the output terminal is used to output the effective magnetic field signal of the steel cord 1, wherein the effective magnetic field signal of the steel cord 1 is a serial electrical signal.
  • the second frame 34 is made of a non-magnetic material that will not be magnetized, and is used to accommodate and fix the second substrate 32 , the detection sensor chip 31 and the logic integrated control chip 33 .
  • the second cover plate 35 is located on the surface of the second frame 34 facing the steel cord 1 .
  • the second cover plate 35 is made of a non-magnetic material that will not be magnetized and is used to protect the detection sensor chip 31 from being worn while detecting the effective magnetic field signal of the steel cord 1 .
  • auxiliary rollers 49 are also provided on the detection channel, and the auxiliary rollers 49 are arranged on both sides of the steel cord 1 to limit the position of the steel cord 1 so that the steel cord 1 can move in the direction indicated by the arrow driven by a separately arranged transmission device, wherein the transmission device is a technology well known to personnel in the technical field and will not be further described here.
  • the above-mentioned steel cord detection device further includes a debris collection and cleaning unit 4 and a control and execution unit.
  • the debris collection and cleaning unit 4 includes a magnetic module 40, and the magnetic module 40 is used to collect steel wire debris on the steel cord 1.
  • the extension direction of the magnetic module 40 is perpendicular to the running direction of the steel cord 1 and parallel to the length direction of the magnetic field unit 2.
  • the magnetic module 40 is located at the entrance of the detection channel to eliminate the influence of the steel wire debris on the quality of the steel cord 1, so that the above-mentioned steel cord 1 can be easily removed.
  • the wire cord detection device can obtain the effective magnetic field signal of the steel cord 1 with the steel wire debris removed and based on the effective magnetic field signal of the steel cord 1, detect the arrangement of the steel cords in the steel cord 1 through the control and execution unit to check the defects of the steel cord 1.
  • the magnetic module 40 is located on one side of the steel cord fabric 1. Specifically, in some embodiments of the present application, the magnetic module 40 is arranged on the same side as the magnetic field unit 2. In some other embodiments of the present application, the magnetic module 40 is arranged on the same side as the magnetic sensor unit 3.
  • the magnetic module 40 includes a linear magnet array 41 , and the linear magnet array 41 includes a plurality of magnets arranged at intervals along an extending direction of the magnetic module 40 .
  • the magnet includes a permanent magnet with stable magnetic properties or an electromagnet, wherein the magnetic field strength of the permanent magnet can be changed according to its magnetic material, and the strength of the electromagnet can be adjusted by controlling the magnitude of the current passing through.
  • the magnetic module 4 further includes a first bracket 42, and the magnetic module 4 is fixed to the frame of the steel cord detection device through the first bracket 42, and the magnetic module 4 is fixedly connected to the steel cord detection device through the first bracket 42. Further, the first bracket 42 is located on both sides of the width of the steel cord 1, and is stably connected to the steel cord detection device from both sides of the width of the steel cord 1.
  • the magnetic module 40 further includes a first frame 45 .
  • the first frame 45 is made of a non-magnetic material that will not be magnetized and is used to accommodate and fix the magnetic module 40 .
  • the magnetic module 40 further includes a reinforcing plate 44 , which is parallel to the width of the steel cord 1 and fixedly connected to a side of the first frame 45 away from the steel cord 1 .
  • first frame 45 and the reinforcing plate 44 may be fixedly connected by welding, gluing, etc., or may be integrally formed.
  • the first frame 45 and the reinforcing plate 44 can be made into a segmented structure, and the magnetic module 40 is installed on the reinforcing plate 44 in segments.
  • the magnetic module 40 also includes a cover plate 43, which is arranged on the surface of the first frame 45 facing the steel cord 1.
  • the cover plate 43 is made of a magnetic material that will not be magnetized. The cover plate 43 can reduce the gap between the magnetic module 40 and the first frame 45, thereby preventing steel wire debris from entering the gap and reducing the friction between the steel cord 1 and the magnetic module 40.
  • the movement direction of the steel cord 1 is indicated by the arrow.
  • the steel cord 1 Before passing through the auxiliary roller 49 and entering the detection channel, the steel cord 1 will pass through the area where the magnetic module 40 is located. After passing through, the steel wire debris of the steel cord 1 can be effectively eliminated.
  • the steel cord 1 When the steel cord 1 enters the detection channel, the steel cord 1 still cuts the background magnetic field in the detection channel in a moving state, causing a change in the magnetic field, and then generates an effective magnetic field signal based on the arrangement rule of the steel cord.
  • the magnetic sensor unit 2 obtains the effective magnetic field signal of the steel cord 1, and generates data showing the arrangement of the steel cords through the control and execution unit.
  • control and execution unit includes an AD conversion module, a data processing module, a data sending module, a display module, a defect detection module, an execution processing module, and a control module, which are used to realize the overall control of a steel cord detection device of the present application, and the control and execution unit can detect the arrangement of the steel cord according to the effective magnetic field signal.
  • the AD conversion module is connected to the logic integrated control chip 33, and is used to receive the effective magnetic field signal of the steel cord fabric 1 and perform analog-to-digital conversion.
  • the AD conversion module includes an 8-bit analog-to-digital conversion chip and a higher-bit analog-to-digital conversion chip.
  • the 8-bit analog-to-digital conversion chip converts the electrical signal of the effective magnetic field into a digital signal of the steel cord fabric 1 with an output range of 0-255 (a total of 256 levels); the higher A digit analog-to-digital conversion chip is used to encode the output range in more detail.
  • the data processing module is connected to the AD conversion module.
  • the data processing module has the functions of realizing correction and processing of digital signals and generating image data, and is used for processing the effective magnetic field signal to generate the magnetic image signal of the steel cord fabric 1.
  • the data sending module is responsible for tasks such as data transmission between modules. In addition, it also includes functions such as sending data to a higher-level host server or sending data and test result data to manual terminals such as handheld computers.
  • the data sending module sends the magnetic image signal of the steel cord 1 to the magnetic image detection device in a wired or wireless manner.
  • the display module is used to display the magnetic image signal, including the magnetic code or image signal of the steel cord fabric 1 and subsequent defect detection results, etc., wherein the display module includes a desktop computer monitor, a notebook or a tablet computer screen.
  • the defect detection module is used to perform defect detection on the magnetic image.
  • the defect detection result of the defect detection module includes the defect type and the location information of the defect.
  • the defect detection module may include a calculation function for calculating the location information and the displacement data and trigger time of the subsequent execution unit execution signal.
  • the execution processing module is used to calibrate or alarm the defect detection results.
  • the execution processing module has the function of marking defects or performing other cutting according to the defect marking information.
  • the execution processing module can be a device such as a robotic arm with marking functions or cutting, pasting and other functions, which can perform two-dimensional movement in the horizontal direction and move up and down in the vertical direction.
  • the control module is used to control the AD conversion module, the data processing module, the display module, the defect detection module and the execution processing module to achieve overall control of the defect detection device.
  • the control module includes functions such as providing a timing logic control signal for the magnetic sensor unit 3, starting or stopping the transmission device and speed control, starting or stopping the magnetic module 40, and controlling the display module.
  • the control module is the control center of the entire system.
  • the gap between the steel cord 1 and the magnetic module 40 is small, so the steel wire debris can only be cleaned when the machine is stopped to replace the steel cord 1. If there are a lot of steel wire debris, it is necessary to stop the machine to clean the steel wire debris, which not only reduces the production efficiency but also affects the production process. Therefore, the second embodiment adds a turnover mechanism 46 on the basis of the first embodiment.
  • the debris collection and cleaning unit 4 further includes a flipping mechanism 46 , which is rotatably mounted on both ends of the magnetic module 40 , and is used to realize the flipping of the magnetic module 40 .
  • FIG. 4-FIG. 5 show the overall structure diagram and top view of the second embodiment of the steel cord detection device in the present application.
  • the flipping mechanism 46 realizes the flipping of the magnetic module 40 through a connecting rod mechanism.
  • the flip mechanism 46 includes a connecting rod 465 and a drive shaft 462, and the drive shaft 462 is used to connect with an external drive device. Specifically, when the external drive device is running, the drive shaft 462 is driven to rotate, and the drive shaft 462 is rigidly connected to the connecting rod 465, and the drive shaft 462 drives the connecting rod 465 to rotate around the axis of the drive shaft 462.
  • the flip mechanism 46 further includes a fixing frame 461, a roller 466 and a slide groove 4611.
  • the fixing frame 461 is fixedly connected to the upper part of the first frame body 45.
  • the fixing frame 461 is provided with a slide groove 4611.
  • the roller 466 is slidably connected to the slide groove 4611.
  • the roller 466 is fixedly connected to the connecting rod 465. Specifically, when the connecting rod 465 rotates around the axis of the driving shaft 462, the roller 466 is inserted into the slide groove 4611. When the roller rotates around the driving shaft 462 driven by the connecting rod 465, the roller 466 slides in the slide groove 4611, thereby driving the fixing frame 461.
  • the rotation drives the magnetic module 40 to flip.
  • the flip mechanism 46 further includes a shaft 464 and a second support 463, the second support 463 is rotatably connected with a driving shaft 462 and a shaft 464, and the fixing frame 461 is rotatably connected with the second support 463 via the shaft 464. Specifically, when the fixing frame 461 rotates, the fixing frame 461 rotates around the axis of the shaft 464, thereby realizing the rotation of the magnetic module 40 around the axis of the shaft 464.
  • the external driving device may be a manual driving device or an automatic driving device such as a motor.
  • the rotation angle of the magnetic module 40 ranges from 0° to 180°, and the rotation angle of the magnetic module 40 can be controlled according to actual needs.
  • Figures 6 and 7 respectively show the side views of the flip mechanism 46 in this embodiment before and after flipping.
  • the debris can be cleaned by manual cleaning, vacuuming, etc.
  • the flipping of the magnetic module 40 is achieved by the flip mechanism 46, which can make it more convenient to clean the debris.
  • the third embodiment adds an automatic cleaning device 47 on the basis of the second embodiment.
  • the debris collection and cleaning unit 4 further includes an automatic cleaning device 47 , which is used to absorb the steel wire debris attached to the surface of the magnetic module 40 .
  • FIG8 shows a side view of the third embodiment of the steel cord detection device in the present application.
  • the flipping mechanism 46 flips the reinforcing plate 404 to be perpendicular to the width of the steel cord 1
  • the automatic cleaning device 47 is arranged opposite to the reinforcing plate 404 .
  • Figure 9 shows the overall structure of the automatic cleaning device 47 in this embodiment.
  • the automatic cleaning device 47 includes a collecting cover 471 and a vacuum suction pipe 472, wherein the collecting cover 471 is used to collect steel wire debris located on the surface of the magnetic module 40, and the vacuum suction pipe 472 is used to collect the steel wire debris collected in the collecting cover 471 to an external collecting device.
  • one end of the vacuum suction tube 472 is connected to the external collection device, and the other end is connected to the collection cover 471 .
  • the automatic cleaning device 47 also includes a pulley 476 and a belt 475 .
  • the belt 475 is sleeved on the pulley 476 , and the belt 475 can reciprocate under the drive of the pulley 476 .
  • the automatic cleaning device 47 further includes a connecting bracket 473 for connecting the collection cover 471 with a belt 475.
  • the belt 475 can drive the collection cover 471 and the vacuum suction pipe 472 to move from one end to the other end in the length direction of the magnetic module 40.
  • the vacuum in the vacuum suction pipe 472 is used to collect the steel wire debris attached to the surface of the magnetic module 40 into the collection cover 471 and collect it into an external collection device through the vacuum suction pipe 472.
  • the automatic cleaning device 47 further includes a motor 474 for electrically connecting to a pulley 476 and driving the pulley 476 to rotate.
  • the automatic cleaning device 47 further includes a coupling 477 for connecting the pulley 476 and the motor 474 so that the pulley 476 and the motor 474 rotate together.
  • the automatic cleaning device 47 further includes brush bristles 478 for sweeping up the steel wire debris on the surface of the magnetic module 40.
  • the brush hair 478 is located on the side of the collecting cover 471 facing the magnetic module 40, and the brush hair 478 and the surface of the magnetic module 40 are The surface contact can sweep up the debris on the surface of the magnetic module 40, and the collection cover 471 and the vacuum suction pipe 472 can suck away the steel wire debris swept up by the surface of the magnetic module 40.
  • the setting of the brush hair 478 can improve the efficiency of the magnetic module 40 in cleaning the steel wire debris.
  • the second embodiment adopts the flipping mechanism 46 to realize the flipping of the magnetic module 40 .
  • This embodiment adopts the rotating opening and closing mechanism to realize the vertical rotation of the magnetic module 40 .
  • the debris collection and cleaning unit 4 also includes a rotating opening and closing mechanism.
  • Figures 10 to 12 show the overall structure diagram, top view and front view of the fourth embodiment of the steel cord detection device in the present application.
  • the rotating opening and closing mechanism includes a second rotating shaft 481 and a second fixed pin 482.
  • the first bracket 42 includes a second fixed bracket 422 and a second rotating bracket 421.
  • the second fixed bracket 422 and the second rotating bracket 421 are respectively located outside the width of the steel cord 1, and are used to achieve a stable connection between the magnetic module 40 and the frame of the steel cord detection device.
  • the second rotating shaft 481 is used to realize the rotation connection between the reinforcing plate 44 and the second rotating bracket 421.
  • the reinforcing plate 44 rotates around the axis of the second rotating shaft 481 to realize the vertical rotation of the magnetic module 40.
  • the second rotating bracket 421 is provided with a first through hole for accommodating the second rotating shaft 481, and a second through hole corresponding to the position of the first through hole is opened on the side of the reinforcing plate 44 close to the second rotating bracket 421.
  • the first through hole and the second through hole penetrate the second rotating bracket 421 and the reinforcing plate 44 along the movement direction of the steel cord 1, and the second rotating shaft 481 penetrates the first through hole and the second through hole to realize the rotational connection between the reinforcing plate 44 and the second rotating bracket 421.
  • the second fixing pin 482 is used to achieve a detachable connection between the reinforcing plate 44 and the second fixing bracket 422 .
  • a second fixing pin 482 is fixedly installed on one side of the second fixing bracket 422 close to the reinforcing plate 44, and a third through hole corresponding to the second fixing pin 482 is opened on one side of the reinforcing plate 44 close to the second fixing bracket 422.
  • the third through hole penetrates the reinforcing plate 44 in a direction perpendicular to the moving direction of the steel cord 1, and the second fixing pin 482 penetrates the third through hole to realize the detachable connection between the reinforcing plate 44 and the second fixing bracket 422.
  • the second fixing pin 482 is loosened, the reinforcing plate 44 is lifted, and the reinforcing plate 44 is rotated around the axis of the second rotating shaft 481.
  • the rotation angle of the magnetic module 40 ranges from 0° to 180°, and the rotation angle of the magnetic module 40 can be controlled according to actual needs.
  • the rotating opening and closing mechanism further includes a handle 483 , and the handle 483 is located on the side of the reinforcing plate 44 facing away from the steel cord 1 .
  • the rotary opening and closing mechanism can be operated manually or automatically controlled by a motor or other means.
  • the fourth embodiment adopts a rotating opening and closing mechanism to realize the vertical rotation of the magnetic module 40 .
  • This embodiment adopts a rotating opening and closing mechanism to realize the horizontal rotation of the magnetic module 40 .
  • FIG. 13 shows a top view of the fifth embodiment of the steel cord detection device in the present application.
  • the rotating opening and closing mechanism includes a second rotating shaft 481 and a second fixed pin 482.
  • the first bracket 42 includes a second fixed bracket 422 and a second rotating bracket 421, and the second fixed bracket 422 and the second rotating bracket 421 are respectively located outside the width of the steel cord 1, and are used to achieve a stable connection between the magnetic module 40 and the frame of the steel cord detection device.
  • the second rotating shaft 481 is used to realize the rotation connection between the reinforcing plate 44 and the second rotating bracket 421.
  • the axis of the second rotating shaft 481 rotates to realize the horizontal rotation of the magnetic module 40 .
  • the second rotating bracket 421 is provided with a fourth through hole for accommodating the second rotating shaft 481, and a fifth through hole corresponding to the position of the fourth through hole is opened on the side of the reinforcing plate 44 close to the second rotating bracket 421.
  • the fourth through hole and the fifth through hole penetrate the second rotating bracket 421 and the reinforcing plate 44 in a direction perpendicular to the movement direction of the steel cord 1, and the second rotating shaft 481 penetrates the fourth through hole and the fifth through hole to realize the rotational connection between the reinforcing plate 44 and the second rotating bracket 421.
  • the second fixing pin 482 is used to achieve a detachable connection between the reinforcing plate 44 and the second fixing bracket 422 .
  • a second fixing pin 482 is fixedly installed on one side of the second fixing bracket 422 close to the reinforcing plate 44, and a sixth through hole corresponding to the second fixing pin 482 is opened on the side of the reinforcing plate 44 facing the magnetic field unit 2, and the sixth through hole penetrates the reinforcing plate 44 in a direction perpendicular to the moving direction of the steel cord 1, and the second fixing pin 482 penetrates the sixth through hole to realize the detachable connection between the reinforcing plate 44 and the second fixing bracket 422.
  • the second fixing pin 482 is loosened, and the reinforcing plate 44 is rotated to rotate the reinforcing plate 44 around the axis of the second rotating shaft 481.
  • the rotation angle of the magnetic module 40 ranges from 0° to 180°, and the rotation angle of the magnetic module 40 can be controlled according to actual needs.
  • the rotary opening and closing mechanism can be operated manually or automatically controlled by a motor or other means.
  • Embodiment 5 adopts a rotating opening and closing mechanism to realize the horizontal rotation of the magnetic module 40. Since the area swept by the magnetic module 40 when rotating horizontally is large, the magnetic module 40 includes a first magnetic module 401 and a second magnetic module 402. The extension directions of the first magnetic module 401 and the second magnetic module 402 are perpendicular to the running direction of the steel cord 1. The first magnetic module 401 and the second magnetic module 402 are respectively rotatably connected to the first bracket 42 on both sides of the steel cord 1 through the rotating opening and closing mechanism.
  • the first magnetic module 401 and the second magnetic module 402 respectively include a matching linear magnet array 41, a first bracket 42, a cover plate 43, a reinforcing plate 44 and a first frame 45.
  • the above specific structures have been specifically described in the first embodiment and will not be repeated here.
  • FIG. 14-FIG. 15 shows a top view of the sixth embodiment of the steel cord detection device in the present application.
  • the rotating opening and closing mechanism includes a second rotating shaft 481.
  • the first bracket 42 is provided with a seventh through hole for accommodating the second rotating shaft 481.
  • the reinforcing plate 44 is provided with an eighth through hole corresponding to the position of the seventh through hole on one side close to the first bracket 42.
  • the seventh through hole and the eighth through hole penetrate the first bracket 42 and the reinforcing plate 44 in a direction perpendicular to the moving direction of the steel cord 1.
  • the second rotating shaft 481 penetrates the seventh through hole and the eighth through hole to realize the rotation connection between the reinforcing plate 44 and the first bracket 42.
  • the reinforcing plate 44 rotates around the axis of the second rotating shaft 481 to realize the horizontal rotation of the magnetic module 40.
  • first magnetic module 401 and the second magnetic module 402 can also rotate vertically.
  • the seventh through hole and the eighth through hole penetrate the first bracket 42 and the reinforcing plate 44 along the moving direction of the steel cord 1, and the second rotating shaft 481 penetrates the seventh through hole and the eighth through hole to realize the rotation connection between the reinforcing plate 44 and the first bracket 42.
  • the reinforcing plate 44 rotates around the axis of the second rotating shaft 481 to realize the vertical rotation of the magnetic module 40.
  • the rotation angle of the magnetic module 40 ranges from 0° to 180°, and the rotation angle of the magnetic module 40 can be controlled according to actual needs.
  • the rotary opening and closing mechanism can be operated manually or automatically controlled by a motor or other means.
  • the steel wire debris of the steel cord 1 is collected by the magnetic module 40.
  • the difference between this embodiment and the first embodiment is that the magnetic module 40 is not additionally provided in this embodiment, but the magnetic field unit 2 is used to collect the debris of the steel cord 1.
  • this embodiment achieves the purpose of simplifying the mechanism and saving costs, the magnetic field unit 2 needs to be turned on when cleaning the debris, and the defect detection of the steel cord 1 cannot be completed while cleaning the debris.
  • Figures 16 and 17 show top views of the seventh embodiment of the steel cord detection device in the present application. As shown in Figures 16 and 17, when debris needs to be cleaned, the magnetic field unit 2 is opened and the debris is cleaned by manual cleaning, vacuuming, etc.
  • the present embodiment may add the flipping mechanism 46 in the third embodiment, and the magnetic field unit 2 may be opened by flipping the magnetic field unit 2 using the flipping mechanism 46 .
  • the rotating opening and closing mechanism in the fifth or sixth embodiment may be added to open the magnetic field unit 2 by rotating the horizontal/vertical rotating magnetic field unit 2 .
  • steel wire scraps are collected on one side of the steel cord 1 .
  • steel wire scraps may be generated on both sides of the steel cord 1 .
  • the steel wire scraps on both sides may affect the quality of the steel cord 1 .
  • the difference between the present application and other embodiments is that in the present embodiment, there are two magnetic modules 40, which are arranged oppositely on both sides of the width of the steel cord 1, and can remove steel wire debris on the upper and lower sides of the steel cord 1, reduce the influence of steel wire debris on the quality of the steel cord 1, and improve product quality.
  • Figure 18 shows a side view of the eighth embodiment of the steel cord detection device in the present application.
  • the magnetic module 40 in this embodiment can adopt any implementation method of embodiments one to seven to achieve the cleaning of steel wire debris of the steel cord 1, which will not be repeated here.

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Abstract

本申请提供一种钢丝帘布检测装置，包括碎屑收集清理单元、磁场单元、磁传感器单元和控制及执行单元。其中，碎屑收集清理单元的磁性模组用于收集钢丝帘布上的钢丝碎屑；磁场单元用于产生背景励磁磁场；磁传感器单元，用于获取钢丝帘布的有效磁场信号，磁传感器单元与磁场单元对向设置于钢丝帘布的幅面两侧，形成钢丝帘布的检测通道；控制及执行单元，用于实现装置的整体控制并可根据有效磁场信号检测钢丝帘线的排布情况。本申请提供的检测装置使用磁性模组吸附钢丝帘布上的钢丝碎屑，提高了钢丝帘布的质量，解决了钢丝碎屑堆积、清理困难的问题。

Description

一种钢丝帘布检测装置 技术领域
本申请涉及工业无损检测领域，特别涉及一种钢丝帘布检测装置。
背景技术
钢丝帘布是轮胎的重要组成部分，由外层的橡胶层和包裹在橡胶层内部等间隔排列的钢丝帘线构成，作为轮胎束带层为加强轮胎的结构强度及承载提供重要支撑。钢丝帘布作为轮胎的重要半成品，在其制造过程中由于生产设备和工艺流程等原因，钢丝帘布中可能存在钢丝帘线分布不均匀、弯曲、错位、断开、交叉等现象，如不能实时检测钢丝帘布中钢丝的分布情况，则将对钢丝帘布的质量产生不利影响，甚至直接影响到轮胎的质量及安全性。
专利CN 113820386 A以及专利CN 216747548 U是利用磁场单元产生背景磁场使钢丝帘布中的钢线产生磁场，然后利用磁传感器单元获取钢丝的有效磁场信号，根据磁场信号的有无、信号的变化周期等特点来判断钢丝帘布内部存在的缺陷，具有经济、安全、方便的特点。
但是，现有的钢丝帘布在裁切的过程中，会产生很多钢丝碎屑，正常情况下，这些碎屑分散的粘附在钢丝帘布上，对钢丝帘布的质量不会产生影响。而增加了磁场单元后的钢丝帘布检测装置，由于磁场单元具有磁性，会将钢丝帘布上的钢丝碎屑吸附到磁场单元上，随着钢丝帘布的运动，会将钢丝碎屑堆积到钢丝帘布检测装置的两端，堆积到一定程度后，特别是更换不同幅面的钢丝帘布后，可能会使堆积的钢丝碎屑掉到钢丝帘布上，大量的钢丝碎屑堆积在钢丝帘布上，就会对钢丝帘布的质量产生影响。由于磁场单元与磁传感器检测单元之间形成的容置钢丝帘布通过的检测通道尺寸较小且固定，使得钢丝碎屑的清理很麻烦。
为解决以上钢丝帘布检测技术存在的问题，特提出本申请。
发明内容
本申请的目的在于提供一种基于磁场的钢丝帘布检测装置，以解决现有的钢丝帘布检测装置中钢丝碎屑堆积、清理困难的问题，从而避免因磁场单元吸附的钢丝碎屑掉到钢丝帘布上，对钢丝帘布质量造成影响的情况。
本申请的实施例可以通过以下技术方案实现：
一种钢丝帘布检测装置，用于获取钢丝帘布的有效磁场信号并基于所述钢丝帘布的有效磁场信号检测所述钢丝帘布中的钢丝帘线排列情况，以检查所述钢丝帘布的缺陷，包括：
碎屑收集清理单元，包括磁性模组，所述磁性模组用于收集所述钢丝帘布上的钢丝碎屑；
磁场单元，用于产生背景励磁磁场；
磁传感器单元，用于获取钢丝帘布的有效磁场信号，所述磁传感器单元与所述磁场单元对向设置于所述钢丝帘布的幅面两侧，形成所述钢丝帘布的检测通道；
控制及执行单元，用于实现装置的整体控制并可根据所述有效磁场信号检测所述钢丝帘线的排布情况。
进一步地，所述磁性模组的延伸方向与所述钢丝帘布的运行方向垂直且与所述磁场单元的长度方向平行；
所述磁性模组位于所述检测通道的入口处。
进一步地，所述磁性模组的数量为一个，所述磁性模组位于所述钢丝帘布的幅面一侧。
进一步地，所述磁性模组的数量为两个，所述磁性模组对向设置于所述钢丝帘布的幅面两侧。
进一步地，第一支架，所述磁性模组通过所述第一支架固定于所述钢丝帘布检测装置的机架上，所述第一支架位于所述钢丝帘布的幅面外侧；
线性磁体阵列，包括沿所述磁性模组延伸方向间隔排列的多个磁体，；
第一框体，所述第一框体由非磁性且不会被磁化的材料制成，用于容置并固定所述线性磁体阵列；
加强板，所述加强板平行于所述钢丝帘布的幅面，所述加强板固定连接于所述第一框体远离所述钢丝帘布的一侧；
盖板，所述盖板设置于所述第一框体朝向所述钢丝帘布一侧的表面，所述盖板由磁性且不会被磁化的材料制成。
进一步地，所述碎屑收集清理单元还包括翻转机构，所述翻转机构旋转安装于所述磁性模组的两端；
所述翻转机构用于实现所述磁性模组的翻转。
进一步地，所述翻转机构包括：
固定架，所述固定架固定连接于所述磁性模组的上部，所述固定架开设有滑槽；
驱动轴，用于与外部驱动装置连接；
第二支座，所述第二支座上转动连接有所述驱动轴；
绕轴，所述固定架与所述第二支座通过所述绕轴转动连接，
连杆，所述连杆的一端与所述驱动轴刚性连接；
滚轴，所述滚轴与所述滑槽滑动连接，所述滚轴的插入所述滑槽中，所述滚轴与所述连杆固定连接。
进一步地，所述碎屑收集清理单元还包括自动清理装置，所述自动清理装置用于吸取附着在所述磁性模组表面的钢丝碎屑；
当所述翻转机构将所述加强板翻转到与所述钢丝帘布的幅面垂直时，所述自动清理装置与所述加强板对向设置。
进一步地，所述自动清理装置包括：
收集罩，用于收集位于所述磁性模组表面的钢丝碎屑；
真空吸管，用于将所述收集罩内的钢丝碎屑汇集到所述外部收集装置，其一端与外部收集装置连接，另一端与所述收集罩连接；
皮带轮，所述皮带轮在电机的驱动下旋转；
电机，用于与所述皮带轮电连接，并驱动所述皮带轮运转；
皮带，所述皮带套于所述皮带轮上，所述皮带可在所述皮带轮的带动下往复运动；
联轴器，用于连接所述电机与所述皮带轮，使得所述电机与所述皮带轮共同旋转；
连接支架，用于连接所述收集罩与所述皮带；
刷丝毛，用于扫起位于所述磁性模组表面的钢丝碎屑，所述刷丝毛位于所述收集罩朝向所述磁性模组的一侧。
进一步地，所述碎屑收集清理单元还包括旋转开合机构，所述旋转开合机构用于实现所述磁性模组竖直方向/水平方向的旋转。
进一步地，第一支架包括第二固定支架和第二旋转支架，所述第二固定支架和所述第二旋转支架分别位于所述钢丝帘布的幅面外侧；
所述旋转开合机构包括：
第二旋转轴，用于实现所述加强板与所述第二旋转支架的转动连接，所述加强板可绕所述第二旋转轴旋转；
第二固定销，用于实现所述加强板与所述第二固定支架的可拆卸连接。
进一步地，所述磁性模组包括第一磁性模组和第二磁性模组，所述第一磁性模组、所述第二磁性模组延伸方向均与所述钢丝帘布的运行方向垂直；
所述第一磁性模组、所述第二磁性模组分别通过旋转开合机构转动连接于钢丝帘布幅面外侧的所述第一支架上；
所述旋转开合机构包括第二旋转轴，用于实现所述加强板与所述第一支架的转动连接，所述加强板可绕所述第二旋转轴旋转。
本申请的实施例提供的一种钢丝帘布检测装置至少具有以下有益效果：
(1)采用磁性模组吸附位于钢丝帘布上的钢丝碎屑，可以避免因钢丝帘布存在钢丝碎屑而影响钢丝帘布质量的问题；
(2)通过翻转机构或旋转开合机构将磁性模组远离钢丝帘布，可以方便地去除位于钢丝帘布上的钢丝碎屑；
(3)通过自动清理装置与翻转机构配合使用，可以实现钢丝碎屑的自动清理，提高效率，降低人工成本。
附图说明
图1为本申请中钢丝帘布检测装置实施例一的俯视图；
图2为本申请中钢丝帘布检测装置实施例一的侧视图；
图3为本申请中图2中A区域的局部放大图；
图4为本申请中钢丝帘布检测装置实施例二的整体结构图；
图5为本申请中钢丝帘布检测装置实施例二的俯视图；
图6为本申请中钢丝帘布检测装置实施例二中的翻转机构翻转前的侧视图；
图7为本申请中钢丝帘布检测装置实施例二中的翻转机构翻转后的侧视图；
图8为本申请中钢丝帘布检测装置实施例三的侧视图；
图9为本申请中钢丝帘布检测装置实施例三中的自动清理装置的整体结构图；
图10为本申请中钢丝帘布检测装置实施例四的整体结构图；
图11为本申请中钢丝帘布检测装置实施例四的俯视图；
图12为本申请中钢丝帘布检测装置实施例四的主视图；
图13为本申请中钢丝帘布检测装置实施例五的俯视图；
图14为本申请中钢丝帘布检测装置实施例六中的旋转开合机构未展开的俯视图；
图15为本申请中钢丝帘布检测装置实施例六中的旋转开合机构展开的俯视图；
图16为本申请中钢丝帘布检测装置实施例七中的磁场单元未展开的俯视图；
图17为本申请中钢丝帘布检测装置实施例七中的磁场单元展开的俯视图；
图18为本申请中钢丝帘布检测装置实施例八的侧视图。
图中标号
1、钢丝帘布，2、磁场单元，21、框体，22、导磁板，23、第一磁体3、磁传感器单元，31、
检测感应芯片，32、第二基板，33、逻辑集成控制芯片，34、第二框体，35、第二盖板，4、碎屑收集清理单元，40、磁性模组，401、第一磁性模组，402、第二磁性模组，41、线性磁体阵列，42、第一支架，421、第二旋转支架，422、第二固定支架，43、盖板，44、加强板，45、第一框体，46、翻转机构，461、固定架，4611、滑槽，462、驱动轴，463、第二支座，464、绕轴，465、连杆，466、滚轴，47、自动清理装置，471、收集罩，472、真空吸管，473、连接支架，474、电机，475、皮带，476、皮带轮，477、联轴器，478、刷丝毛，481、第二旋转轴，482、第二固定销，483、把手，49、辅助辊轮。
具体实施方式
以下，基于优选的实施方式并参照附图对本申请进行进一步说明。
此外，为了方便理解，放大(厚)或者缩小(薄)了图纸上的各种构件，但这种做法不是为了限制本申请的保护范围。
单数形式的词汇也包括复数含义，反之亦然。
在本申请实施例中的描述中，需要说明的是，若出现术语“上”、“下”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是本申请实施例的产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，本申请的描述中，为了区分不同的单元，本说明书上用了第一、第二等词汇，但这些不会受到制造的顺序限制，也不能理解为指示或暗示相对重要性，其在本申请的详细说明与权利要求书上，其名称可能会不同。
本说明书中词汇是为了说明本申请的实施例而使用的，但不是试图要限制本申请。还需要说明的是，除非另有明确的规定和限定，若出现术语“设置”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，可以是直接相连，也可以通过中间媒介间接连接，可以是两个元件内部的连通。对于本领域的技术人员而言，可以具体理解上述术语在本申请中的具体含义。
实施例一
图1和图2示出了本申请中钢丝帘布检测装置实施例一的俯视图和侧视图，如图1和图2所示，上述钢丝帘布检测装置包括磁场单元2、磁传感器单元3，磁场单元2与磁传感器单元3对向设置于钢丝帘布1的幅面两侧，形成容置钢丝帘布1通过的检测通道。
图3示出了本申请中磁场单元2和磁传感器单元3的具体结构，如图3所示，具体地，磁场单元2用于生成背景励磁磁场，磁场单元2包括第一磁体23，第一磁体23为沿磁性模组40延伸方向延伸的长条状磁体或沿磁性模组40延伸方向间隔排列的多个磁体，磁体包括磁性性能稳定的永磁体或电磁铁，其中，永磁体的磁场强度可根据其磁性材料而改变，电磁铁可通过控制通过的电流大小来调节强度。
在一些实施例中，所述磁场单元2还包括导磁板22，导磁板22位于第一磁体23朝向钢丝帘布1一侧的表面并沿磁性模组40延伸方向延伸，用于均衡磁场，引导背景励磁磁场均匀分布，使得背景磁场强度及方向的分布更加均匀。
磁场单元2还包括框体21，框体21由非磁性且不会被磁化的材料制成，用于容置并固定第一磁体23。
具体地，磁传感器单元3包括检测感应芯片31、第二基板32、逻辑集成控制芯片33、第二框体34及第二盖板35，用于获取钢丝帘布的有效磁场信号。
具体地，检测感应芯片31为一个或多个沿磁性模组40延伸方向设置的感应芯片阵列，检测感应芯片31间隔排列于所述第二基板32朝向钢丝帘布1一侧的表面，用于获取钢丝帘布1的有效磁场信号。
第二基板32平行于钢丝帘布1的幅面，第二基板32由非磁性且不会被磁化的材料制成，用于固定检测感应芯片32且不被磁化。
逻辑集成控制芯片33包括多个输入端一个输出端，多个输入端与多个检测感应芯片31一一对应地电连接，输出端用于输出所述钢丝帘布1的有效磁场信号，其中，所述钢丝帘布1的有效磁场信号为串行的电信号。
第二框体34由非磁性且不会被磁化的材料制成，用于容置并固定所述第二基板32、检测感应芯片31和逻辑集成控制芯片33。
第二盖板35位于第二框体34朝向所述钢丝帘布1一侧的表面，第二盖板35由非磁性且不会被磁化的材料制成，用于保护检测感应芯片31不被磨损的同时可检测到钢丝帘布1的有效磁场信号。
优选地，检测通道上还设置有辅助辊轮49，辅助辊轮49对向设置于钢丝帘布1的两侧，用于限定钢丝帘布1的位置，使得钢丝帘布1能够在另外设置的传动装置的带动下沿箭头所示的方向运动，其中，传动装置为本技术领域人员所公知的技术，在此不做进一步赘述。
如图1和图2所示，上述一种钢丝帘布检测装置还包括碎屑收集清理单元4和控制及执行单元，具体地，碎屑收集清理单元4包括磁性模组40，磁性模组40用于收集钢丝帘布1上的钢丝碎屑。具体地，磁性模组40的延伸方向与钢丝帘布1的运行方向垂直且与磁场单元2的长度方向平行，磁性模组40位于检测通道的入口处，以便于消除钢丝碎屑对钢丝帘布1质量的影响，使得上述钢 丝帘布检测装置可以获取去除钢丝碎屑的钢丝帘布1的有效磁场信号并基于钢丝帘布1的有效磁场信号，通过控制及执行单元检测钢丝帘布1中的钢丝帘线排列情况，以检查钢丝帘布1的缺陷。
具体地，磁性模组40的数量为一个，磁性模组40位于钢丝帘布1的幅面一侧。具体地，在本申请的一些实施例中，磁性模组40与磁场单元2同侧设置。在本申请的另外一些实施例中，磁性模组40与磁传感器单元3同侧设置。
具体地，磁性模组40包括线性磁体阵列41，线性磁体阵列41包括沿磁性模组40延伸方向间隔排列的多个磁体。
具体地，磁体包括磁性性能稳定的永磁体或电磁体，其中，永磁体的磁场强度可根据其磁性材料而改变，电磁铁可通过控制通过的电流大小来调节强度。
具体地，磁性模组4还包括第一支架42，磁性模组4通过第一支架42固定于上述钢丝帘布检测装置的机架上，磁性模组4通过第一支架42实现与钢丝帘布检测装置的固定连接。进一步地，第一支架42位于钢丝帘布1的幅面两侧，从钢丝帘布1的幅面两侧与钢丝帘布检测装置稳定连接。
具体地，磁性模组40还包括第一框体45，第一框体45有非磁性且不会被磁化的材料制成，用于容置并固定磁性模组40。
优选地，为实现磁体的稳定连接，磁性模组40还包括加强板44，加强板44平行于钢丝帘布1的幅面，加强板44固定连接于第一框体45远离钢丝帘布1的一侧。
可以想象的是，第一框体45与加强板44既可以通过焊接、胶粘等方式固定连接，也可以一体成型制作。
可以想象的是，为方便成型与安装，第一框体45、加强板44可以做成分段式的结构，磁性模组40分段安装在加强板44上。
优选地，磁性模组40还包括盖板43，盖板43设置于第一框体45朝向钢丝帘布1一侧的表面，盖板43由磁性且不会被磁化的材料制成，盖板43可以减少磁性模组40与第一框体45之间的缝隙，既可以防止钢丝碎屑进入缝隙，又可以减少钢丝帘布1和磁性模组40的摩擦。
如图1所示，钢丝帘布1的运动方向如箭头所示，在经过辅助辊轮49进入检测通道前，钢丝帘布1会通过磁性模组40所在区域，通过后可有效消除钢丝帘布1的钢丝碎屑，当钢丝帘布1进入检测通道后，钢丝帘布1在运动状态下依然切割检测通道内的背景磁场，引起磁场变化，进而产生依据钢丝帘线排布规律的有效磁场信号。
进一步地，磁传感器单元2获取钢丝帘布1的有效磁场信号，通过控制及执行单元生成呈现钢丝帘线排列情况的数据。
具体地，控制及执行单元包括AD转换模块、数据处理模块、数据发送模块、显示模块、缺陷检测模块、执行处理模块，及控制模块，用于实现本申请一种钢丝帘布检测装置的整体控制，且可实现所述控制及执行单元根据所述有效磁场信号检测所述钢丝帘线的排列情况。
具体地，AD转换模块与逻辑集成控制芯片33连接，用于接收所述钢丝帘布1有效磁场信号并进行模数转换。
在一些实施例中，AD转换模块包括8位模数转换芯片和更高位数的模数转换芯片，8位模数转换芯片将有效磁场的电信号转换为输出区间为0-255(共256级)的钢丝帘布1的数字信号；更高 位数的模数转换芯片，用于对输出区间进行更细的编码。
数据处理模块与AD转换模块连接，数据处理模块具有实现数字信号的校正及处理并生成图像数据等功能，用于将有效磁场信号处理生成所述钢丝帘布1的磁图像信号。
数据发送模块负责各个模块间的数据发送等任务，此外，还包括向更上一层的主机服务器发送数据或向掌上电脑等人工终端发送数据及检测结果数据等功能。
在一些实施例中，数据发送模块以有线或无线方式向磁图像检测装置发送钢丝帘布1的磁图像信号。
显示模块用于显示磁图像信号，包括用于显示钢丝帘布1的磁编码或图像信号并可以显示后续缺陷检测结果等，其中显示模块包括台式电脑显示器、笔记本或平板电脑的屏幕。
缺陷检测模块用于对磁图像进行缺陷检测，缺陷检测模块的缺陷检测结果包括缺陷类型及缺陷的位置信息，缺陷检测模块可包含计算功能，用于计算位置信息及后续执行单元执行信号的位移数据及触发时间等功能。
执行处理模块用于对缺陷检测结果进行标定或报警处理，执行处理模块具有根据缺陷标记信息进行缺陷标记或执行其他切除等功能。执行处理模块可以是带有标记功能或切割、粘贴等功能的机械臂等设备，可以在水平方向进行二维运动并在竖直方向上进行上下移动。
控制模块用于控制所述AD转换模块、数据处理模块、显示模块、缺陷检测模块和执行处理模块，实现缺陷检测装置的整体控制。
控制模块包含提供磁传感器单元3的时序逻辑控制信号、传送装置的启动或停止及速度控制、磁性模组40的启动或停止、显示模块的控制等功能，控制模块为整个系统的控制中心。
可以想象的是，当停机更换钢丝帘布1时，磁性模组40下方的空隙变大，可以采用人工清扫、吸尘器吸除等方式清理钢丝碎屑。
实施例二
实施例一中，钢丝帘布1与磁性模组40的间隙较小，因此只能在停机更换钢丝帘布1的时候清理钢丝碎屑。如果钢丝碎屑较多时，就需要为了清理钢丝碎屑而停机，不仅降低了生产效率，而且影响生产进程。因此，实施例二在实施例一的基础上增加了翻转机构46。
具体地，碎屑收集清理单元4还包括翻转机构46，翻转机构46旋转安装于磁性模组40的两端，翻转机构46用于实现磁性模组40的翻转。
具体地，图4-图5示出了本申请中钢丝帘布检测装置实施例二的整体结构图和俯视图，如图3-图6所示，翻转机构46通过连杆机构实现磁性模组40的翻转。
具体地，翻转机构46包括连杆465和驱动轴462，驱动轴462用于与外部驱动装置连接。具体地，当外部驱动装置运转时，带动驱动轴462旋转，驱动轴462与连杆465刚性连接，驱动轴462带动连杆465绕驱动轴462的轴线旋转。
进一步地，翻转机构46还包括固定架461、滚轴466和滑槽4611，固定架461固定连接于第一框体45的上部，固定架461开设有滑槽4611，滚轴466与滑槽4611滑动连接，滚轴466与连杆465固定连接。具体地，连杆465绕驱动轴462的轴线旋转时，滚轴466插入滑槽4611中，滚轴在连杆465的带动下绕驱动轴462旋转时，滚轴466在滑槽4611中滑动，从而带动固定架461 旋转，进而带动磁性模组40翻转。
进一步地，翻转机构46还包括绕轴464和第二支座463，第二支座463上转动连接有驱动轴462和绕轴464，固定架461与第二支座463通过绕轴464转动连接。具体地，固定架461旋转时，固定架461绕绕轴464的轴线旋转，进而实现磁性模组40绕绕轴464的轴线旋转。
具体地，外部驱动装置可以是手动，也可以是电机等自动驱动装置。
具体地，磁性模组40的旋转角度范围为0°～180°，可根据实际需要控制磁性模组40的旋转角度。
具体地，图6和图7分别示出了本实施例中的翻转机构46翻转前后的侧视图，由图7可以看出，磁性模组40翻转后，就可以采用人工清扫、吸尘器吸除等方式清理碎屑。本实施例通过翻转机构46实现磁性模组40的翻转，可以更方便地清理碎屑。
实施例三
实施例二中，通过翻转机构46将磁性模组40翻转后，再采用人工清扫、吸尘器吸除等方式清理碎屑，需要人工参与碎屑清理，效率较低。因此，实施例三在实施例二的基础上增加了自动清理装置47。
具体地，碎屑收集清理单元4还包括自动清理装置47，自动清理装置47用于吸取附着在磁性模组40表面的钢丝碎屑。
图8示出了本申请中钢丝帘布检测装置实施例三的侧视图，如图8所示，当翻转机构46将加强板404翻转到与钢丝帘布1的幅面垂直时，自动清理装置47与加强板404对向设置。
图9示出了本实施例中的自动清理装置47的整体结构图，如图8和图9所示，自动清理装置47包括收集罩471和真空吸管472，其中，收集罩471用于收集位于磁性模组40表面的钢丝碎屑，真空吸管472用于将收集罩471内收集的钢丝碎屑汇集到外部收集装置。
具体地，真空吸管472一端与外部收集装置连接，另一端与收集罩471连接。
具体地，自动清理装置47还包括皮带轮476和皮带475，皮带475套于皮带轮476上，皮带475可在皮带轮476的带动下往复运动。
具体地，自动清理装置47还包括连接支架473，用于连接收集罩471与皮带475。具体地，皮带475可带动收集罩471和真空吸管472从磁性模组40的长度方向上的一端开始向另一端运动，在运动的同时，利用真空吸管472中的真空将附着在磁性模组40表面的钢丝碎屑收集到收集罩471并通过真空吸管472汇集到外部收集装置中。
具体地，自动清理装置47还包括电机474，用于与皮带轮476电连接，并驱动皮带轮476旋转。
具体地，自动清理装置47还包括联轴器477，用于连接皮带轮476与电机474，使得皮带轮476与电机474共同旋转。
当收集罩471沿磁性模组40的长度方向往复运动时，若磁性模组40的磁性太强，可能导致真空吸管472不能或者不能完全的将磁性模组40表面的钢丝碎屑吸走，导致碎屑清理不干净。优选地，如图8所示，自动清理装置47还包括刷丝毛478，用于扫起位于磁性模组40表面的钢丝碎屑。
具体地，刷丝毛478位于收集罩471朝向磁性模组40的一侧，刷丝毛478与磁性模组40的表 面接触，可以将磁性模组40表面的碎屑扫起，收集罩471与真空吸管472可以将磁性模组40表面扫起的钢丝碎屑吸走。刷丝毛478的设置，可以提高磁性模组40清理钢丝碎屑的效率。
实施例四
实施例二采用翻转机构46实现磁性模组40的翻转，本实施例采用旋转开合机构实现磁性模组40竖直方向的旋转。
具体地，碎屑收集清理单元4还包括旋转开合机构，图10-图12示出了本申请中钢丝帘布检测装置实施例四的整体结构图、俯视图以及主视图，如图10-图12所示，旋转开合机构包括第二旋转轴481和第二固定销482。具体地，第一支架42包括第二固定支架422和第二旋转支架421，第二固定支架422和第二旋转支架421分别位于钢丝帘布1的幅面外侧，用于实现磁性模组40与钢丝帘布检测装置机架的稳定连接。
具体地，第二旋转轴481用于实现加强板44与第二旋转支架421的转动连接。加强板44绕第二旋转轴481的轴线旋转，实现磁性模组40竖直方向的旋转。
具体地，第二旋转支架421设有容置第二旋转轴481的第一通孔，加强板44靠近第二旋转支架421的一侧开设有与第一通孔位置对应的第二通孔，第一通孔、第二通孔沿钢丝帘布1运动方向贯穿第二旋转支架421、加强板44，第二旋转轴481贯穿第一通孔与第二通孔实现加强板44与第二旋转支架421的转动连接。
具体地，第二固定销482用于实现加强板44与第二固定支架422的可拆卸连接。
具体地，第二固定支架422靠近加强板44的一侧固定安装有第二固定销482，加强板44靠近第二固定支架422的一侧开设有与第二固定销482对应的第三通孔，第三通孔沿与钢丝帘布1运动方向垂直的方向贯穿加强板44，第二固定销482贯穿第三通孔实现加强板44与第二固定支架422的可拆卸连接。具体地，当需要清理钢丝碎屑时，将第二固定销482松开，抬起加强板44，使加强板44绕第二旋转轴481的轴线旋转。
具体地，磁性模组40的旋转角度范围为0°～180°，可根据实际需要控制磁性模组40的旋转角度。
优选地，为方便抬起加强板，旋转开合机构还包括把手483，把手483位于加强板44背向钢丝帘布1的一侧。
具体地，旋转开合机构既可以手动操作，也可以通过电机或其他方式自动控制。
实施例五
实施例四采用旋转开合机构实现磁性模组40竖直方向的旋转，本实施例采用旋转开合机构实现磁性模组40水平方向的旋转。
本实施例与实施例四的区别在于旋转开合机构的旋转方向不同。具体地，图13示出了本申请中钢丝帘布检测装置实施例五的俯视图，如图13所示，旋转开合机构包括第二旋转轴481和第二固定销482。具体地，第一支架42包括第二固定支架422和第二旋转支架421，第二固定支架422和第二旋转支架421分别位于钢丝帘布1的幅面外侧，用于实现磁性模组40与钢丝帘布检测装置机架的稳定连接。
具体地，第二旋转轴481用于实现加强板44与第二旋转支架421的转动连接。加强板44绕第 二旋转轴481的轴线旋转，实现磁性模组40水平方向的旋转。
具体地，第二旋转支架421设有容置第二旋转轴481的第四通孔，加强板44靠近第二旋转支架421的一侧开设有与第四通孔位置对应的第五通孔，第四通孔、第五通孔沿钢丝帘布1运动方向垂直的方向贯穿第二旋转支架421、加强板44，第二旋转轴481贯穿第四通孔与第五通孔实现加强板44与第二旋转支架421的转动连接。
具体地，第二固定销482用于实现加强板44与第二固定支架422的可拆卸连接。
具体地，第二固定支架422靠近加强板44的一侧固定安装有第二固定销482，加强板44朝向磁场单元2的一侧开设有与第二固定销482对应的第六通孔，第六通孔沿与钢丝帘布1运动方向垂直的方向贯穿加强板44，第二固定销482贯穿第六通孔实现加强板44与第二固定支架422的可拆卸连接。具体地，当需要清理钢丝碎屑时，将第二固定销482松开，旋转加强板44，使加强板44绕第二旋转轴481的轴线旋转。
具体地，磁性模组40的旋转角度范围为0°～180°，可根据实际需要控制磁性模组40的旋转角度。
具体地，旋转开合机构既可以手动操作，也可以通过电机或其他方式自动控制。
实施例六
实施例五采用旋转开合机构实现磁性模组40水平方向的旋转，由于磁性模组40水平旋转时所扫过的面积较大，因此将磁性模组40包括第一磁性模组401和第二磁性模组402，第一磁性模组401和第二磁性模组402延伸方向均与钢丝帘布1的运行方向垂直，，第一磁性模组401和第二磁性模组402分别通过旋转开合机构转动连接于钢丝帘布1幅面两侧的第一支架42上。
具体地，第一磁性模组401和第二磁性模组402分别包括与之匹配的线性磁体阵列41、第一支架42、盖板43、加强板44和第一框体45，上述具体结构已在实施例一具体描述，在此不再赘述。
具体地，图14-图15示出了本申请中钢丝帘布检测装置实施例六的俯视图，如图14-图15所示，旋转开合机构包括第二旋转轴481，具体地，第一支架42设有容置第二旋转轴481的第七通孔，加强板44靠近第一支架42的一侧开设有与第七通孔位置对应的第八通孔，第七通孔、第八通孔沿钢丝帘布1运动方向垂直的方向贯穿第一支架42、加强板44，第二旋转轴481贯穿第七通孔与第八通孔实现加强板44与第一支架42的转动连接。加强板44绕第二旋转轴481的轴线旋转，实现磁性模组40水平方向的旋转。
可以想象的是，第一磁性模组401和第二磁性模组402也可以竖直旋转。具体地，第七通孔、第八通孔沿钢丝帘布1运动方向贯穿第一支架42、加强板44，第二旋转轴481贯穿第七通孔与第八通孔实现加强板44与第一支架42的转动连接。加强板44绕第二旋转轴481的轴线旋转，实现磁性模组40竖直方向的旋转。
具体地，磁性模组40的旋转角度范围为0°～180°，可根据实际需要控制磁性模组40的旋转角度。
具体地，旋转开合机构既可以手动操作，也可以通过电机或其他方式自动控制。
实施例七
实施例一中通过磁性模组40实现钢丝帘布1的钢丝碎屑收集，为实现简化机构、节约成本的目的，本实施例与实施例一的区别在于：本实施例没有额外设置磁性模组40，而是采用磁场单元2实现钢丝帘布1的碎屑收集。本实施例虽然实现了简化机构、节约成本的目的，但是在清理碎屑时，需要打开磁场单元2，不能在清理碎屑的同时完成钢丝帘布1的缺陷检测。
具体地，图16和图17示出了本申请中钢丝帘布检测装置实施例七的俯视图，如图16和图17所示，当需要清理碎屑时，将磁场单元2打开，采用人工清扫、吸尘器吸除等方式清理碎屑。
可以想象的是，在本申请的一些实施例中，本实施例可以增加实施例三中的翻转机构46，采用翻转机构46翻转磁场单元2的方式将磁场单元2打开。
可以想象的是，在本申请的另外一些实施例中，可以增加实施例五或六中的旋转开合机构，采用旋转开合水平/竖直旋转磁场单元2的方式将磁场单元2打开。
实施例八
实施例一～实施例七均在钢丝帘布1的幅面一侧进行钢丝碎屑的收集，但由于在钢丝帘布1切割过程中，钢丝帘布1的幅面两侧可能都会产生钢丝碎屑，两侧的钢丝碎屑都会对钢丝帘布1的质量产生影响。
本申请与其他实施例的区别仅在于：本实施例中，磁性模组40的数量为两个，磁性模组40对向设置于钢丝帘布1的幅面两侧，能够清除钢丝帘布1上下两侧的钢丝碎屑，减小钢丝碎屑对钢丝帘布1质量的影响，提高产品质量。
具体地，图18示出了本申请中钢丝帘布检测装置实施例八的侧视图，如图18所示，本实施例中的磁性模组40可采用实施例一～实施例七的任一实施方式实现钢丝帘布1的钢丝碎屑清理，在此不再赘述。
以上对本申请的具体实施方式作了详细介绍，对于本技术领域的技术人员来说，在不脱离本申请原理的前提下，还可以对本申请进行若干改进和修饰，这些改进和修饰也属于本申请权利要求的保护范围。

Claims (12)

  1. 一种钢丝帘布检测装置，用于获取钢丝帘布的有效磁场信号并基于所述钢丝帘布的有效磁场信号检测所述钢丝帘布中的钢丝帘线排列情况，以检查所述钢丝帘布的缺陷，其特征在于，包括：
    碎屑收集清理单元，包括磁性模组，所述磁性模组用于收集所述钢丝帘布上的钢丝碎屑；
    磁场单元，用于产生背景励磁磁场；
    磁传感器单元，用于获取钢丝帘布的有效磁场信号，所述磁传感器单元与所述磁场单元对向设置于所述钢丝帘布的幅面两侧，形成所述钢丝帘布的检测通道；
    控制及执行单元，用于实现装置的整体控制并可根据所述有效磁场信号检测所述钢丝帘线的排布情况。
  2. 根据权利要求1所述的一种钢丝帘布检测装置，其特征在于：
    所述磁性模组的延伸方向与所述钢丝帘布的运行方向垂直且与所述磁场单元的长度方向平行；
    所述磁性模组位于所述检测通道的入口处。
  3. 根据权利要求2所述的一种钢丝帘布检测装置，其特征在于：
    所述磁性模组的数量为一个，所述磁性模组位于所述钢丝帘布的幅面一侧。
  4. 根据权利要求2所述的一种钢丝帘布检测装置，其特征在于：
    所述磁性模组的数量为两个，所述磁性模组对向设置于所述钢丝帘布的幅面两侧。
  5. 根据权利要求3或4所述的一种钢丝帘布检测装置，其特征在于，所述磁性模组包括：
    第一支架，所述磁性模组通过所述第一支架固定于所述钢丝帘布检测装置的机架上，所述第一支架位于所述钢丝帘布的幅面外侧；
    线性磁体阵列，包括沿所述磁性模组延伸方向间隔排列的多个磁体，；
    第一框体，所述第一框体由非磁性且不会被磁化的材料制成，用于容置并固定所述线性磁体阵列；
    加强板，所述加强板平行于所述钢丝帘布的幅面，所述加强板固定连接于所述第一框体远离所述钢丝帘布的一侧；
    盖板，所述盖板设置于所述第一框体朝向所述钢丝帘布一侧的表面，所述盖板由磁性且不会被磁化的材料制成。
  6. 根据权利要求5所述的一种钢丝帘布检测装置，其特征在于：
    所述碎屑收集清理单元还包括翻转机构，所述翻转机构旋转安装于所述磁性模组的两端；
    所述翻转机构用于实现所述磁性模组的翻转。
  7. 根据权利要求6所述的一种钢丝帘布检测装置，其特征在于，所述翻转机构包括：
    固定架，所述固定架固定连接于所述磁性模组的上部，所述固定架开设有滑槽；
    驱动轴，用于与外部驱动装置连接；
    第二支座，所述第二支座上转动连接有所述驱动轴；
    绕轴，所述固定架与所述第二支座通过所述绕轴转动连接，
    连杆，所述连杆的一端与所述驱动轴刚性连接；
    滚轴，所述滚轴与所述滑槽滑动连接，所述滚轴的插入所述滑槽中，所述滚轴与所述连杆固定连接。
  8. 根据权利要求7所述的一种钢丝帘布检测装置，其特征在于：
    所述碎屑收集清理单元还包括自动清理装置，所述自动清理装置用于吸取附着在所述磁性模组表面的钢丝碎屑；
    当所述翻转机构将所述加强板翻转到与所述钢丝帘布的幅面垂直时，所述自动清理装置与所述加强板对向设置。
  9. 根据权利要求8所述的一种钢丝帘布检测装置，其特征在于，所述自动清理装置包括：
    收集罩，用于收集位于所述磁性模组表面的钢丝碎屑；
    真空吸管，用于将所述收集罩内的钢丝碎屑汇集到所述外部收集装置，其一端与外部收集装置连接，另一端与所述收集罩连接；
    皮带轮，所述皮带轮在电机的驱动下旋转；
    电机，用于与所述皮带轮电连接，并驱动所述皮带轮运转；
    皮带，所述皮带套于所述皮带轮上，所述皮带可在所述皮带轮的带动下往复运动；
    联轴器，用于连接所述电机与所述皮带轮，使得所述电机与所述皮带轮共同旋转；
    连接支架，用于连接所述收集罩与所述皮带；
    刷丝毛，用于扫起位于所述磁性模组表面的钢丝碎屑，所述刷丝毛位于所述收集罩朝向所述磁性模组的一侧。
  10. 根据权利要求5所述的一种钢丝帘布检测装置，其特征在于：
    所述碎屑收集清理单元还包括旋转开合机构，所述旋转开合机构用于实现所述磁性模组竖直方向/水平方向的旋转。
  11. 根据权利要求10所述的一种钢丝帘布检测装置，其特征在于：
    第一支架包括第二固定支架和第二旋转支架，所述第二固定支架和所述第二旋转支架分别位于所述钢丝帘布的幅面外侧；
    所述旋转开合机构包括：
    第二旋转轴，用于实现所述加强板与所述第二旋转支架的转动连接，所述加强板可绕所述第二旋转轴旋转；
    第二固定销，用于实现所述加强板与所述第二固定支架的可拆卸连接。
  12. 根据权利要求10所述的一种钢丝帘布检测装置，其特征在于：
    所述磁性模组包括第一磁性模组和第二磁性模组，所述第一磁性模组、所述第二磁性模组延伸方向均与所述钢丝帘布的运行方向垂直；
    所述第一磁性模组、所述第二磁性模组分别通过旋转开合机构转动连接于钢丝帘布幅面外侧的所述第一支架上；
    所述旋转开合机构包括第二旋转轴，用于实现所述加强板与所述第一支架的转动连接，所述加强板可绕所述第二旋转轴旋转。
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