Anti-strong-magnetism anti-interference needle detector

Abstract

The utility model provides an anti-interference needle detector of strong magnetism relates to needle detector field, including: needle detector frame and cleaning component, the upper side of needle detector frame is equipped with conveyer belt, and conveyer belt both sides are equipped with shield plate, and the surface of shield plate is coated with magnetic shielding agent coating, and the upper side of conveyer belt is equipped with the detection box simultaneously, and the cleaning component is equipped with the cleaning component. A cylinder and a guide column are connected to one side of the detection box, the cleaning assembly comprises a moving plate, the moving plate is slidably connected to the outer side of the guide column, a magnetic suction roller is connected to the lower side of the moving plate, a scraping assembly is arranged on the upper side of the magnetic suction roller, and an elastic telescopic rod is connected to the upper end of the scraping assembly. The needle detector solves the problems that the existing needle detector is troublesome in the process of removing detected metal impurities and is easy to be interfered by external strong magnetic signals to cause misjudgment.

Description

Technical Field

[0001] The utility model relates to the technical field of needle detectors, in particular to an anti-strong magnetic and anti-interference needle detector. Background Art

[0002] The working principle of a conveyor belt type needle detector is as follows: when a ferromagnetic object enters the detection channel, upper and lower probes generate signals through strong magnetic field induction and send the signals to a signal receiving and processing integrated circuit. Then, an optoelectronic scanner, a high-power integrated circuit, a sensitivity control integrated circuit, a signal receiving integrated circuit, a signal output integrated circuit and an actuator complete the detection work. After retrieval, in the prior art (publication number: CN220013162U), it is recorded that "a needle detector capable of automatically cleaning a detector, including a needle detector main body, an automatic cleaning component is fixedly installed on the top of the needle detector main body, and a suction head moving component is fixedly installed on the right side of the needle detector main body. In the above solution, by sucking air with a blower, fluff is sucked into through a collection suction head and sucked into a collection box through a hose and intercepted by a filter screen. With the above structure, fluff at the bottom of the detector of the needle detector main body can be automatically sucked and cleaned, which is relatively convenient; by a first driving device, the collection suction head is directed towards the bottom of the detector of the needle detector main body, and then a second driving device makes the collection suction head linearly move along the bottom of the detector to suck and clean the fluff on the bottom surface of the detector. After cleaning, the collection suction head is rotated to one side of the needle detector main body. With the above structure, the collection suction head can be automatically controlled to fully clean the bottom of the detector of the needle detector main body, achieving the effect of improving the overall automation degree and practicability of the device."

[0003] Although the needle detector capable of automatically cleaning a detector in the prior art realizes the suction treatment of fluff, there are still some deficiencies: after the existing needle detector detects ferromagnetic metal, it will automatically stop and determine the position of the metal, but manual handling and removal are required, which is rather troublesome and there is a safety hazard of being stabbed by the metal. In addition, the optoelectronic scanning induction of the needle detector will be interfered by external strong magnetic signals during use, resulting in misjudgment. Content of the Utility Model

[0004] In order to overcome the defects existing in the prior art, the present invention provides an anti-strong magnetic and anti-interference needle detector to solve the problems that the existing needle detector has a troublesome process for removing detected metal impurities and is prone to being interfered by external strong magnetic signals, resulting in misjudgment.

[0005] To achieve the above object, a needle detector with anti-strong magnetic interference is provided, including: a needle detector frame and a cleaning component. A conveyor belt is provided on the upper side of the needle detector frame, and shielding plates are provided on both sides of the conveyor belt. A magnetic shielding agent coating is applied on the surface of the shielding plates. At the same time, a detection box is provided above the conveyor belt, and a cylinder and a guide post are connected to one side of the detection box. The cleaning component includes a moving plate, and the moving plate is slidably connected to the outside of the guide post. A magnetic suction roller is connected to the lower side of the moving plate. A scraping component is provided above the magnetic suction roller, and an elastic telescopic rod is connected to the upper end of the scraping component.

[0006] Further, a detector is installed at the lower end of the detection box, and there is a spacing between the detector and the conveyor belt. A touch screen is installed above the detection box.

[0007] Further, guide holes are opened at both ends of the moving plate, and the guide posts slide through the guide holes. The cylinder is connected between the moving plate and the detection box.

[0008] Further, a guide groove is opened inside the moving plate, and the guide groove vertically penetrates the moving plate. An electric push rod is installed at the upper end of the guide groove. At the same time, a sliding plate is slidably connected inside the guide groove.

[0009] Further, the lower end of the electric push rod is connected to the sliding plate, and a motor is installed at one end of the sliding plate. The magnetic suction roller is rotatably connected between the sliding plates.

[0010] Further, an activity cavity is opened inside the moving plate, and the elastic telescopic rod is connected to the inner top of the activity cavity. The scraping component is slidably connected in the activity cavity.

[0011] Further, the scraping component includes a connecting plate on the upper side, and a scraper is connected to the lower end of the connecting plate. A card slot is opened at the lower end of the scraper.

[0012] Further, an electromagnet sheath is provided on the outer wall of the magnetic suction roller, and hollow shafts are connected to both ends of the magnetic suction roller. The hollow shafts are rotatably inserted into the sliding plates.

[0013] Further, an electromagnet controller is installed on the outer wall of one side of the sliding plate. The inner end of the electromagnet controller is connected to a guide tube. The guide tube penetrates the sliding plate and the end of the magnetic suction roller. And a wire is provided inside the guide tube and is electrically connected to the electromagnet sheath.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. When in use, when the fabric passes through the lower side of the detection box through the conveyor belt, when there is ferromagnetic metal in the fabric, it will be detected in time. By setting shielding plates on both sides of the conveyor belt, it is convenient to strengthen the anti-strong magnetic signal interference effect on the detector under the detection box, thereby ensuring the accuracy of the detection;

[0016] 2. When ferromagnetic metal impurities are detected, the conveyor belt stops conveying at this time, and reverses to push the fabric backward out of the detection box. Then, the magnetic suction roller is moved downward by the electric push rod and the sliding plate until it contacts the fabric and maintains a certain pressure with the conveyor belt. Then, the electromagnet sleeve outside the magnetic suction roller is energized through the electromagnet controller. Then, the air cylinder is started to make the moving plate move linearly, thereby driving the magnetic suction roller to roll on the fabric. Then, the strong magnetism generated by the electromagnet sleeve can adsorb and remove the metal impurities in the fabric. When a certain amount of metal impurities are adsorbed on the magnetic suction roller, at this time, the magnetic suction roller is moved upward to keep it in elastic contact with the scraper, and then the motor is started to drive the magnetic suction roller to rotate, and then the electromagnet sleeve is powered off. Then, the metal impurities on its surface can be removed by the scraper when the magnetic suction roller rotates. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the needle detector of the embodiment of the present utility model.

[0018] Figure 2 It is a schematic sectional structure diagram of the cleaning component of the embodiment of the present utility model.

[0019] Figure 3 It is a schematic three-dimensional structure diagram of the scraping component of the embodiment of the present utility model.

[0020] Figure 4 For the embodiment of the present utility model Figure 2 Schematic diagram of the structure at position A.

[0021] In the figure: 1. Needle detector frame; 11. Shielding plate; 12. Conveyor belt; 13. Detection box; 14. Air cylinder; 15. Guide post; 16. Touch screen; 2. Cleaning component; 21. Moving plate; 211. Guide hole; 212. Activity cavity; 213. Guide groove; 22. Electric push rod; 23. Sliding plate; 24. Motor; 25. Elastic telescopic rod; 26. Scraping component; 261. Connecting plate; 262. Scraper; 263. Card slot; 27. Magnetic suction roller; 271. Electromagnet sleeve; 272. Hollow shaft; 28. Electromagnet controller; 281. Guide tube; 282. Lead wire. Detailed Embodiment

[0022] Refer to Figures 1 to 4As shown in the figure, the utility model provides a needle detector with strong magnetic field resistance and anti-interference, which includes a needle detector frame 1 and a cleaning component 2. A conveyor belt 12 is provided on the upper side of the needle detector frame 1, and shielding plates 11 are provided on both sides of the conveyor belt 12. The surface of the shielding plates 11 is coated with a magnetic shielding agent coating. At the same time, a detection box 13 is provided above the conveyor belt 12. One side of the detection box 13 is connected with a cylinder 14 and a guide post 15. A detector is installed at the lower end of the detection box 13, and there is a spacing between the detector and the conveyor belt 12. A touch screen 16 is installed above the detection box 13. The cleaning component 2 includes a moving plate 21, and the moving plate 21 is slidably connected to the outside of the guide post 15. A magnetic suction roller 27 is connected to the lower side of the moving plate 21. A scraping component 26 is provided above the magnetic suction roller 27, and the upper end of the scraping component 26 is connected with an elastic telescopic rod 25.

[0023] In this embodiment, the needle detector frame 1 and the cleaning component 2 constitute the main body structure of the needle detector with strong magnetic field resistance and anti-interference involved in this application.

[0024] Specifically, the needle detector frame 1, the detection box 13, the detector and the conveyor belt 12 are conventional components of a needle detector under the prior art.

[0025] It should be noted that when the magnetic suction roller 27 rolls on the fabric, if the metal impurities are embedded deep in the fabric and cannot be sucked out, manual intervention is required to remove them at this time.

[0026] As Figure 2 shown, guide holes 211 are opened at both ends of the moving plate 21, and the guide post 15 slides through the guide holes 211. The cylinder 14 is connected between the moving plate 21 and the detection box 13. A guide groove 213 is opened inside the moving plate 21, and the guide groove 213 vertically penetrates the moving plate 21. An electric push rod 22 is installed at the upper end of the guide groove 213. At the same time, a sliding plate 23 is slidably connected inside the guide groove 213. The lower end of the electric push rod 22 is connected to the sliding plate 23. One end of the sliding plate 23 is installed with a motor 24, and the magnetic suction roller 27 is rotatably connected between the sliding plates 23. An activity cavity 212 is opened inside the moving plate 21, and the elastic telescopic rod 25 is connected to the inner top of the activity cavity 212. The scraping component 26 is slidably connected in the activity cavity 212.

[0027] As a preferred implementation manner, by setting the motor 24, the magnetic suction roller 27 can be driven to rotate when scraping the metal on the surface of the magnetic suction roller 27, so as to cooperate with the scraping component 26 to clean its surface.

[0028] As Figure 3 and Figure 4As shown in the figure, the scraping component 26 includes a connecting plate 261 on the upper side. The lower end of the connecting plate 261 is connected with a scraping plate 262. A clamping groove 263 is formed at the lower end of the scraping plate 262. An electromagnet sleeve 271 is arranged on the outer wall of the magnetic suction roller 27. Both ends of the magnetic suction roller 27 are connected with hollow shafts 272. The hollow shafts 272 are rotationally inserted into the sliding plate 23. An electromagnet controller 28 is installed on the outer wall of one side of the sliding plate 23. The inner end of the electromagnet controller 28 is connected with a guiding tube 281. The guiding tube 281 penetrates through the sliding plate 23 and the end of the magnetic suction roller 27. A wire 282 is arranged inside the guiding tube 281 and is electrically connected with the electromagnet sleeve 271.

[0029] Specifically, the inner width of the clamping groove 263 fits the surface curvature of the magnetic suction roller 27, so that the two side walls of the clamping groove 263 can keep in contact with the surface of the magnetic suction roller 27 at a certain angle.

[0030] As a preferred embodiment, by setting the electromagnet sleeve 271, a strong electromagnetic adsorption effect can be generated after power-on, and the metal impurities in the fabric can be easily sucked out and removed.

[0031] During use, when ferromagnetic metal impurities are detected, the conveyor belt stops conveying at this time and reverses to push the fabric backward out of the detection box. Then, the magnetic suction roller is moved downward by the electric push rod and the sliding plate until it contacts the fabric and maintains a certain pressure with the conveyor belt. Then, the electromagnet sleeve outside the magnetic suction roller is powered on through the electromagnet controller. Then, the air cylinder is started to make the moving plate move linearly, thereby driving the magnetic suction roller to roll on the fabric. Then, the metal impurities in the fabric can be adsorbed and removed by the strong magnetism generated by the electromagnet sleeve. When a certain amount of metal impurities are adsorbed on the magnetic suction roller, at this time, the magnetic suction roller is lifted upward to keep it in elastic contact with the scraping plate. Then, the motor is started to drive the magnetic suction roller to rotate, and the electromagnet sleeve is powered off. The metal impurities on its surface can be removed by the scraping plate when the magnetic suction roller rotates.

[0032] The anti-strong magnetic interference needle detector of the present utility model can effectively solve the problems that the existing needle detector has a relatively troublesome process for removing the detected metal impurities and is prone to misjudgment due to being interfered by external strong magnetic signals. On the basis of the existing anti-strong magnetic interference needle detector technology, the process of removing metal impurities by the needle detector is simplified, the working efficiency of the needle detector is improved, and at the same time, it has the effect of anti-strong magnetic interference.

Claims

1. A strong magnetic and anti-interference needle detector, comprising: A needle detector frame (1) and a cleaning assembly (2), characterized in that: a conveyor belt (12) is provided on the upper side of the needle detector frame (1), and shielding plates (11) are provided on both sides of the conveyor belt (12), and the surface of the shielding plates (11) is coated with a magnetic shielding agent coating, and a detection box (13) is provided on the upper side of the conveyor belt (12), and one side of the detection box (13) is connected to a cylinder (14) and a guide column (15), and the cleaning assembly (2) includes a moving plate (21), and the moving plate (21) is slidably connected to the outer side of the guide column (15), and a magnetic suction roller (27) is connected to the lower side of the moving plate (21), and a scraping assembly (26) is provided on the upper side of the magnetic suction roller (27), and the upper end of the scraping assembly (26) is connected to an elastic telescopic rod (25).

2. The anti-strong magnetic and anti-interference needle detector according to claim 1, characterized in that: A detector is installed at the lower end of the detection box (13), and a distance is provided between the detector and the conveyor belt (12), and a touch screen (16) is installed on the upper side of the detection box (13).

3. The anti-strong magnetic and anti-interference needle detector according to claim 1, characterized in that: Both ends of the movable plate (21) are provided with guide holes (211), and the guide pillars (15) slide through the guide holes (211), and the cylinder (14) is connected between the movable plate (21) and the detection box (13).

4. The anti-strong magnetic and anti-interference needle detector according to claim 1, characterized in that: A guide groove (213) is provided inside the movable plate (21), and the guide groove (213) vertically penetrates the movable plate (21), and an electric push rod (22) is installed at the upper end of the guide groove (213), and a slide plate (23) is slidably connected inside the guide groove (213).

5. The anti-strong magnetic and anti-interference needle detector according to claim 4, characterized in that: The lower end of the electric push rod (22) is connected to the slide plate (23), and a motor (24) is installed at one end of the slide plate (23), and the magnetic roller (27) is rotatably connected between the slide plates (23).

6. The anti-strong magnetic and anti-interference needle detector according to claim 1, characterized in that: An active cavity (212) is provided inside the movable plate (21), and an elastic telescopic rod (25) is connected to the inner top of the active cavity (212), and a scraping assembly (26) is slidably connected in the active cavity (212).

7. The anti-strong magnetic and anti-interference needle detector according to claim 1, characterized in that: The scraping assembly (26) comprises an upper connecting plate (261), the lower end of the connecting plate (261) is connected to a scraper (262), and a slot (263) is provided at the lower end of the scraper (262).

8. The anti-strong magnetic and anti-interference needle detector according to claim 1, characterized in that: The outer wall of the magnetic roller (27) is provided with an electromagnet sheath (271), and both ends of the magnetic roller (27) are connected with a hollow shaft (272), and the hollow shaft (272) is rotatably inserted in the slide plate (23).

9. The anti-strong magnetic and anti-interference needle detector according to claim 4, characterized in that: An electromagnet controller (28) is installed on one side outer wall of the slide plate (23), and a guide tube (281) is connected to the inner end of the electromagnet controller (28). The guide tube (281) passes through the slide plate (23) and the end of the magnetic roller (27), and a wire (282) is provided inside the guide tube (281) to be electrically connected to the electromagnet sheath (271).

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