WO2017213146A1 - Dispositif pour examiner des corps étrangers - Google Patents

Dispositif pour examiner des corps étrangers Download PDF

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Publication number
WO2017213146A1
WO2017213146A1 PCT/JP2017/021004 JP2017021004W WO2017213146A1 WO 2017213146 A1 WO2017213146 A1 WO 2017213146A1 JP 2017021004 W JP2017021004 W JP 2017021004W WO 2017213146 A1 WO2017213146 A1 WO 2017213146A1
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WO
WIPO (PCT)
Prior art keywords
unit
support
ray
inspection
foreign matter
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Application number
PCT/JP2017/021004
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English (en)
Japanese (ja)
Inventor
眞悟 野口
祐二 川口
Original Assignee
株式会社イシダ
日新電子工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社イシダ, 日新電子工業株式会社 filed Critical 株式会社イシダ
Priority to CN201780034732.4A priority Critical patent/CN109313280A/zh
Priority to JP2018521737A priority patent/JP7011261B2/ja
Publication of WO2017213146A1 publication Critical patent/WO2017213146A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/16—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the material being a moving sheet or film
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/18—Investigating the presence of flaws defects or foreign matter
    • 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

Definitions

  • This disclosure relates to a foreign matter inspection apparatus.
  • Patent Document 1 discloses a metal detection unit that detects, as a foreign object, a metal contained in an object to be inspected that is being transported by the transport unit using a transport unit that transports the object to be inspected and an interaction between a magnetic field and metal.
  • a foreign matter inspection apparatus comprising:
  • the transport unit passes through the case containing the search coil in the metal detection unit, the transport is performed when carrying out maintenance of the transport unit (for example, cleaning of the transport unit). It is necessary to pull out the transport unit integrally from the case of the metal detection unit along the transport direction of the object to be transported by the unit.
  • maintenance of the transport unit for example, cleaning of the transport unit.
  • an object of the present disclosure is to provide a foreign matter inspection apparatus capable of easily carrying out maintenance of the transport unit.
  • a foreign matter inspection apparatus uses a transport unit that transports an object to be inspected, and an interaction between a magnetic field and metal to remove metal contained in the test object that is being transported by the transport unit.
  • a metal detection unit that detects the first feed roller disposed at the upstream end of the transport region of the object to be inspected by the transport unit, and the second feed roller disposed at the downstream end of the transport region.
  • an endless belt spanned between the first feed roller and the second feed roller, and a support plate that supports the endless belt in the transport region, the support plate being along the transport direction of the inspection object by the transport unit
  • a plurality of support portions arranged side by side and separated from each other.
  • the support plate that supports the endless belt is separated into a plurality of support portions that are arranged in parallel along the transport direction. Therefore, when carrying out maintenance of the transport unit, it is not necessary to pull out the transport unit as a unit from the case of the metal detection unit along the transport direction. Therefore, according to the foreign substance inspection device according to an embodiment of the present disclosure, it is possible to easily perform the maintenance of the conveyance unit even when the space on both sides of the foreign substance inspection device in the conveyance direction is limited.
  • a foreign matter inspection apparatus uses at least one of an X-ray inspection unit that detects foreign matter contained in an object to be inspected being transported by a transport unit using X-ray transparency, and a transport unit. And a housing that houses the X-ray inspection unit and the metal detection unit, and has an inspection object carry-in port by the transfer unit and an inspection object transfer port by the transfer unit.
  • an X-ray inspection unit is provided in the foreign substance inspection device, dirt attached to the surface of the endless belt tends to reduce the accuracy of the X-ray inspection. The frequency of performing is likely to increase.
  • the foreign substance inspection apparatus when the foreign substance inspection apparatus is provided with an X-ray inspection unit, a housing is required to suppress external leakage of X-rays, so that it is difficult to easily carry out maintenance of the transport unit. Easy to be.
  • the configuration according to an embodiment of the present disclosure is particularly effective when the foreign substance inspection apparatus is provided with an X-ray inspection unit and a housing.
  • an opening through which the X-ray of the X-ray inspection unit passes may be formed in any one of the plurality of support portions.
  • a gap through which X-rays of the X-ray inspection unit pass may be formed between the support portions adjacent to each other.
  • the metal detection unit includes a case in which the search coil is disposed inside and the transport unit passes through the inside, and the plurality of support portions are mutually outside on the case. It may be separated. Thereby, compared with the case where several support parts are mutually isolate
  • the transport unit includes a first feed roller, and a first support frame to which a support portion arranged on the most upstream side of the transport region among the plurality of support portions is attached; You may further have a 2nd feed roller and the 2nd support frame to which the support part arrange
  • the first feed roller, the most upstream support portion and the first support frame set, and the second feed roller, the most downstream support portion and the second support frame set can be handled as a unit. As a result, maintenance of the transport unit can be performed more easily.
  • the support plate may include two or three support portions that are arranged in parallel along the transport direction and separated from each other. Thereby, it is possible to achieve both suppression of complication of the apparatus configuration and easy maintenance of the transport unit.
  • At least one first engagement projecting toward the other support portion of the support portions adjacent to each other is provided on one support portion of the support portions adjacent to each other.
  • a plurality of second engaging portions projecting toward one support portion are provided on the other support portion, and one support portion and the other support portion include at least one first support portion.
  • the one engaging portion may be engaged with each other in a state of being positioned between the second engaging portions adjacent to each other. Thereby, an endless belt can be supported stably.
  • an X-ray inspection unit is provided, leakage of X-rays can be reliably prevented.
  • one support part and the other support part can be easily separated.
  • FIG. 1 is a front view of a foreign matter inspection apparatus according to an embodiment.
  • FIG. 2 is a conceptual diagram showing an internal configuration and a control system of the foreign matter inspection apparatus of FIG.
  • FIG. 3 is a front view of the main components of the X-ray inspection unit and the metal detection unit of FIG.
  • FIG. 4 is a perspective view of main components of the X-ray inspection unit and the metal detection unit of FIG.
  • FIG. 5 is a front view of the main components of the X-ray inspection unit, the metal detection unit, and the conveyance unit of FIG.
  • FIG. 6 is a front view of the main components of the X-ray inspection unit, the metal detection unit, and the transport unit of FIG.
  • FIG. 7 is a side view of a modified support plate.
  • FIG. 1 is a front view of a foreign matter inspection apparatus according to an embodiment.
  • FIG. 2 is a conceptual diagram showing an internal configuration and a control system of the foreign matter inspection apparatus of FIG.
  • FIG. 3 is a front
  • FIG. 8 is a plan view of the support plate of FIG.
  • FIG. 9 is a side view of the support plate of FIG. 7 with the first support portion and the second support portion separated from each other.
  • FIG. 10 is a plan view of the support plate of FIG. 7 with the first support portion and the second support portion separated from each other.
  • the foreign object inspection apparatus 1 is a device that detects foreign matter contained in an object to be inspected.
  • the inspected object is, for example, food.
  • the foreign object inspection apparatus 1 performs X-ray inspection and metal detection while conveying the inspection object in the interior thereof, and inspects whether or not the inspection object contains foreign objects.
  • X-ray inspection is a technique for detecting foreign matter contained in an object to be inspected using X-ray transparency, and is realized by the X-ray inspection unit 2 (see FIG. 2). In the X-ray inspection, it is possible to detect a foreign substance having X-ray permeability different from that of the inspection object.
  • Metal detection is a technique for detecting a metal contained in an inspection object as a foreign object using the interaction between a magnetic field and metal, and is realized by the metal detection unit 3 (see FIG. 2). In metal detection, metal can be detected as a foreign substance.
  • the foreign matter inspection apparatus 1 has a housing 4 in which a space is formed.
  • the housing 4 accommodates the X-ray inspection unit 2 and the metal detection unit 3 (see FIG. 2) inside.
  • the housing 4 shields X-rays generated by the X-ray inspection unit 2 and suppresses external leakage of X-rays.
  • the housing 4 is made of, for example, stainless steel.
  • the housing 4 has, for example, a rectangular parallelepiped box shape.
  • An opening 4 a that communicates with the inside of the housing 4 is formed on one side surface of the housing 4.
  • An opening 4 b that communicates with the inside of the housing 4 is formed on the other side surface of the housing 4.
  • the opening 4a is an inspection object carry-in port
  • the opening 4b is an inspection object carry-out port.
  • an upper door 40 and a lower door 41 that open and close the housing 4 are provided on the front surface of the housing 4.
  • the upper door 40 and the lower door 41 have a hinged door structure, for example. By opening the upper door 40 or the lower door 41, at least a part of an X-ray inspection unit 2 and a metal detection unit 3 described later are exposed to the outside.
  • the upper door 40 and the lower door 41 are made of, for example, stainless steel.
  • a display 5 and an operation switch 6 are provided on the front surface of the upper door 40.
  • the display 5 is a display device having both a display function and an input function, for example, a touch panel.
  • the display 5 displays results of X-ray inspection and metal detection, and also displays an operation screen for setting various parameters related to metal detection and X-ray inspection.
  • the operation switch 6 is a power switch for the X-ray inspection unit 2 and the metal detection unit 3.
  • the housing 4 is supported by support legs 7.
  • a notification unit 8 and a cooler 9 are provided on the upper surface of the housing 4.
  • the notification unit 8 notifies the contamination of foreign matters and the operating state of the device.
  • the notification unit 8 includes a first notification unit 81 corresponding to the X-ray inspection unit 2 and a second notification unit 82 corresponding to the metal detection unit 3.
  • the cooler 9 sends cool air to the inside of the housing 4 and adjusts the temperature of the devices arranged inside the housing 4.
  • the inside of the housing 4 is inspected by carrying a part of an X-ray generator 21 to be described later, a substrate chamber T1 in which various control boards and the like are placed, and an object S to be inspected. Is divided into an examination room T2 in which is performed.
  • the substrate chamber T1 is located on the upper side of the inspection chamber T, and the temperature is adjusted by the cooler 9.
  • a transport unit 10 for transporting the inspection object S is arranged.
  • the transport unit 10 is a roller-type belt conveyor, and extends in the horizontal direction inside the housing 4 with one end located in the opening 4a and the other end located in the opening 4b. . That is, the housing 4 accommodates a portion of the transport unit 10 excluding one end and the other end.
  • the transport unit 10 carries the inspection object S into the housing 4 through the opening 4a and carries the inspection object S out of the housing 4 through the opening 4b.
  • a carry-in conveyor 101 is arranged on one side of the carrying unit 10 and a carry-out conveyor 102 is arranged on the other side of the carrying unit 10. ing.
  • the carry-out conveyor 102 may be provided with a distribution mechanism for the inspection object S.
  • An X-ray shielding curtain 42 is disposed in the opening 4a.
  • An X-ray shielding curtain 43 is disposed in the opening 4b.
  • the upper end of each X-ray shielding curtain 42, 43 is a fixed end with respect to the housing 4, and the lower end of each X-ray shielding curtain 42, 43 is a free end.
  • the X-ray shielding curtains 42 and 43 shield X-rays generated by the X-ray inspection unit 2 and suppress external leakage of X-rays.
  • Each X-ray shielding curtain 42, 43 is formed of a flexible material containing a metal material (tungsten or the like), for example.
  • a cylindrical case 31 having a through hole 31a for allowing the inspection object S to pass therethrough is disposed in the inspection room T2.
  • the conveyance part 10 has penetrated the case 31 through the through-hole 31a.
  • the inspection object S passes through the through hole 31 a of the case 31 by the transport unit 10, and X-ray inspection and metal detection are sequentially performed in the case 31.
  • the case 31 is made of, for example, stainless steel.
  • the X-ray inspection unit 2 includes an X-ray inspection control unit 20, an X-ray generator 21, and an X-ray detector 22.
  • the X-ray generator 21 is disposed above the transport unit 10 and the case 31.
  • the X-ray generator 21 irradiates the inspection object S transported by the transport unit 10 with X-rays.
  • an X-ray source for generating X-rays is disposed in the substrate chamber T1.
  • the mechanism for irradiating X-rays in the X-ray generator 21 is arranged in the examination room T2.
  • the X-ray detector 22 is disposed below the transport unit 10 and the case 31 and faces the X-ray generator 21.
  • the X-ray detector 22 detects X-rays generated by the X-ray generator 21 and transmitted through the inspection object S.
  • the X-ray detector 22 for example, a line sensor configured by arranging a plurality of X-ray detection sensors in parallel in the front-rear direction (horizontal direction orthogonal to the transport direction of the inspection object S by the transport unit 10). Is used.
  • the X-ray detector 22 is accommodated in the substrate case 23 in order to reduce X-ray leakage.
  • the substrate case 23 is formed with a slit 23a (see FIG. 4) through which X-rays incident on the X-ray detector 22 pass.
  • the X-ray inspection control unit 20 temporarily stores an input / output interface I / O for inputting / outputting signals to / from the outside, a ROM (Read Only Memory) in which a program and information for performing processing are stored, and data. It has storage media such as RAM (Random Access Memory) and HDD (Hard Disk Drive), CPU (Central Processing Unit), and communication circuits.
  • the X-ray inspection control unit 20 stores input data in the RAM based on a signal output from the CPU, loads a program stored in the ROM into the RAM, and executes the program loaded in the RAM. The functions described later are realized.
  • the X-ray inspection control unit 20 is disposed in the substrate chamber T1 and is electrically connected to the X-ray generator 21 and the X-ray detector 22.
  • the X-ray inspection control unit 20 is electrically connected to the display 5 and receives operation information from the operator via the operation screen of the display 5.
  • the X-ray inspection control unit 20 sets the operation profiles of the X-ray generator 21 and the X-ray detector 22 based on the operation information, and controls the operations of the X-ray generator 21 and the X-ray detector 22.
  • the X-ray inspection control unit 20 detects the inspection object S using the laser sensor 24 disposed upstream of the X-ray generator 21 and the X-ray detector 22, the X-ray inspection control unit 20 inspects the inspection object S. Start.
  • the X-ray inspection control unit 20 controls the X-ray generator 21 to irradiate the inspection object S transported by the transport unit 10 with X-rays.
  • the X-ray detector 22 measures the X-ray transmission amount of X-rays that have passed through the inspection object S, and outputs the measured X-ray transmission amount to the X-ray inspection control unit 20.
  • the X-ray inspection control unit 20 generates an X-ray transmission image in which the X-ray transmission amount acquired in time series is reflected in the pixel value. Then, the X-ray inspection control unit 20 detects the foreign matter by analyzing the X-ray transmission image using an image processing technique. For example, the X-ray inspection control unit 20 determines whether there is an image region in which the difference from the reference transmittance of the inspection object S is a predetermined value or more based on the pixel value of the X-ray transmission image. The X-ray inspection control unit 20 determines that a foreign object has been detected when there is an image region in which the difference from the reference transmittance of the inspection object S is a predetermined value or more.
  • the X-ray inspection control unit 20 displays the result data of the X-ray inspection on the display 5 or stores the result data of the X-ray inspection in the storage unit according to a request from the worker. Further, the X-ray inspection control unit 20 indicates that when the X-ray generator 21 and the X-ray detector 22 are operating normally, the device relating to the X-ray inspection is operating using the first alarm 81. To the workers. Further, when it is determined that a foreign object has been detected, the X-ray inspection control unit 20 notifies the worker that the foreign object has been detected using the first notification device 81.
  • the case 31 includes a main body portion 32, a first hood portion 33, and a second hood portion 34.
  • the first hood portion 33 is provided on the opening 4 a side (loading side) with respect to the main body portion 32.
  • the second hood part 34 is provided on the opening part 4 b side (the outlet side) with respect to the main body part 32.
  • the through hole 31 a of the case 31 is defined by the inner walls of the main body portion 32, the first hood portion 33, and the second hood portion 34.
  • the case 31 is supported by a vibration isolation table 39 (anti-vibration tables 39a and 39b) in order to improve the vibration resistance.
  • an X-ray passage slit 33a that allows X-rays to pass is formed below the X-ray generator 21.
  • An X-ray passage slit 33b that allows X-rays to pass through is formed on the lower surface of the first hood portion 33 so as to face the X-ray passage slit 33a.
  • the X-ray detector 22 is disposed below the X-ray passage slit 33b.
  • a slit 33c is formed on the downstream side (main body portion 32 side) of the X-ray passage slits 33a and 33b.
  • a laser sensor 38 is disposed in the slit 33c. The laser sensor 38 irradiates the inspection object S on the transport unit 10 with a laser through the slit 33c.
  • the metal detection unit 3 includes a metal detection control unit 30, a transmission coil 35, and reception coils 36 and 37.
  • the transmission coil 35 and the reception coils 36 and 37 are search coils formed of a conductive material such as metal.
  • the transmission coil 35 and the reception coils 36 and 37 are arranged inside the case 31 (more specifically, as shown in FIGS. 3 and 4 so as to surround a portion of the transport unit 10 passing through the through hole 31a.
  • the metal detection unit 3 includes a case 31 in which the transmission coil 35 and the reception coils 36 and 37 are disposed inside and the transport unit 10 passes through the inside. Thereby, the inspection object S is allowed to pass through the inside of the transmission coil 35 and the reception coils 36 and 37 by the transport unit 10.
  • the transmission coil 35 is disposed between the reception coils 36 and 37.
  • the reception coils 36 and 37 are differentially connected to each other and are disposed symmetrically with respect to the transmission coil 35.
  • the two receiving coils 36 and 37 have the same flux linkage.
  • the transmission coil 35 is configured to be energized and generates magnetic flux.
  • a voltage is excited by electromagnetic induction of a magnetic field generated by the transmitting coil 35.
  • the first hood part 33 and the second hood part 34 suppress external leakage of the magnetic field generated by the transmission coil 35 and entry of an external magnetic field.
  • the metal detection control unit 30 temporarily stores an input / output interface I / O for inputting / outputting signals from / to the outside, a ROM storing programs and information for performing processing, and data temporarily.
  • a storage medium such as a RAM and an HDD, a CPU, a communication circuit, and the like.
  • the metal detection control unit 30 stores input data in the RAM based on a signal output from the CPU, loads a program stored in the ROM into the RAM, and executes the program loaded into the RAM, which will be described later. Realize the function to do.
  • the metal detection control unit 30 is disposed in the substrate chamber T1 and is electrically connected to the X-ray inspection control unit 20.
  • the metal detection control unit 30 receives operation information from an operator via an operation screen of the display 5 electrically connected via the X-ray inspection control unit 20.
  • the metal detection control unit 30 sets operation profiles of the transmission coil 35 and the reception coils 36 and 37 based on the operation information.
  • the metal detection control unit 30 detects the inspection object S using the laser sensor 38 disposed on the upstream side of the transmission coil 35 and the reception coils 36 and 37, the metal detection control unit 30 starts metal detection of the inspection object S. .
  • the metal detection control unit 30 supplies an alternating excitation current to the transmission coil 35 to generate a magnetic flux.
  • the magnetic flux generated by the transmission coil 35 passes through the two reception coils 36 and 37, and a voltage is excited in each reception coil 36 and 37 by electromagnetic induction.
  • the metal detection control unit 30 acquires the output voltage of the differential connection of the receiving coils 36 and 37 and determines metal detection. For example, the metal detection control unit 30 determines that a metal foreign object is not detected when the differential connection output voltage is 0, and detects that a metal foreign object is detected when the differential connection output voltage is not 0. judge.
  • the metal detection control unit 30 displays the metal detection result data on the display 5 or stores the metal detection result data in the storage unit in response to a request from the worker. In addition, when the transmission coil 35 and the reception coils 36 and 37 are operating normally, the metal detection control unit 30 informs the worker that the metal detection device is operating using the second alarm 82. Inform. Furthermore, when the metal detection control unit 30 determines that a foreign object has been detected, the metal detection control unit 30 notifies the worker that the foreign object has been detected using the second notification device 82.
  • the X-ray inspection unit 2 and the metal detection unit 3 described above are configured to be independently operable. That is, the foreign substance inspection apparatus 1 can perform not only both X-ray inspection and metal detection, but also can execute either X-ray inspection or metal detection.
  • the X-ray inspection unit 2 since the X-ray inspection unit 2 performs display control of the display 5, the operation screen of the metal detection unit 3 is displayed on the display 5 when the X-ray inspection unit 2 is stopped. Not. For this reason, a sub-display (not shown) connected to the metal detection unit 3 is disposed inside the housing 4.
  • the metal detection unit 3 receives operation information from an operator via the sub display and displays result data or the like on the sub display.
  • the transport unit 10 includes a first support frame 11, a second support frame 12, a first feed roller 13, a second feed roller 14, an endless belt 15, and a support plate 16.
  • the support plate 16 includes a first support portion (support portion) 16a and a second support portion (support portion) 16b.
  • the first support portion 16a and the second support portion 16b are arranged in parallel along the transport direction D of the inspection object S by the transport unit 10 and are separated from each other.
  • the first support frame 11 is provided with a first feed roller 13 and a first support portion 16a. More specifically, the first feed roller 13 is rotatably supported by the first support frame 11.
  • the first support portion 16a is fixed to the first support frame 11 by screws or the like.
  • the first support frame 11 is attached to a support body 45 provided in the housing 4 in a state where the first feed roller 13 and the first support portion 16a are attached. More specifically, the first support frame 11 is fixed by a fastener 45 b provided on the support body 45 while being placed on an insulating member 45 a provided on the support body 45.
  • the fastener 45b is a so-called “patch latch”, and is engaged with a claw portion 17a provided in the first support portion 16a. Note that the set of the fastener 45b and the claw portion 17a is provided on both sides of the first support portion 16a in the front-rear direction (horizontal direction orthogonal to the conveyance direction of the inspection object S by the conveyance unit 10).
  • a second feed roller 14 and a second support portion 16b are attached to the second support frame 12. More specifically, the second feed roller 14 is rotatably supported by the second support frame 12.
  • the second support portion 16b is fixed to the second support frame 12 by screws or the like.
  • the second support frame 12 is attached to a support body 46 provided in the housing 4 in a state where the second feed roller 14 and the second support portion 16b are attached. More specifically, the second support frame 12 is fixed by a fastener 46 b provided on the support 46 while being placed on an insulating member 46 a provided on the support 46.
  • the fastener 46b is a so-called patchon lock, and is engaged with a claw portion 17b provided in the second support portion 16b.
  • the set of the fastener 46b and the claw portion 17b is provided on both sides of the second support portion 16b in the front-rear direction.
  • the endless belt 15 is hung on the first feed roller 13 and the second feed roller 14.
  • the upper surface of the upper portion 15 a of the endless belt 15 from the first feed roller 13 to the second feed roller 14 is a transport region R of the inspection object S by the transport unit 10. That is, the first feed roller 13 is disposed at the upstream end of the transport region R, and the second feed roller 14 is disposed at the downstream end of the transport region R.
  • the support body 45 is provided with a pressing roller 45 c that presses a lower portion 15 b of the endless belt 15 from the second feeding roller 14 to the first feeding roller 13.
  • the support 46 is provided with a pressing roller 46 c that presses the lower portion 15 b of the endless belt 15 from the second feeding roller 14 to the first feeding roller 13.
  • the first support frame 11 is provided with a tension adjustment bolt mechanism 18 for finely adjusting the tension of the endless belt 15 by pressing both ends of the rotation shaft of the first feed roller 13 outward.
  • the support body 46 is provided with a timing pulley 47 connected to a drive motor (not shown).
  • the timing pulley 47 is connected to a timing pulley 19 provided on the second feed roller 14 via a timing belt 48. Thereby, the transport unit 10 is driven.
  • the timing pulleys 19 and 47 and the timing belt 48 are arranged on the lower door 41 side. Thereby, the timing pulleys 19 and 47 and the timing belt 48 are exposed to the outside by opening the lower door 41.
  • the support plate 16 supports the endless belt 15 in the transport region R. More specifically, the support plate 16 supports the upper portion 15a of the endless belt 15 from the first feed roller 13 to the second feed roller 14 from below.
  • the first support portion 16 a and the second support portion 16 b are separated from each other outside the case 31 included in the metal detection unit 3. In the present embodiment, the first support portion 16 a and the second support portion 16 b are separated from each other at a position upstream of the case 31 in the transport direction D.
  • the second support portion 16 b passes through the through hole 31 a of the case 31.
  • a slit (opening) 16c through which the X-ray of the X-ray inspection unit 2 passes is formed in a portion of the second support portion 16b passing through the through hole 31a.
  • the slit 16 c is located between the X-ray passage slits 33 a and 33 b formed in the first hood portion 33 of the case 31.
  • the transport unit 10 configured as described above is removed from the foreign matter inspection apparatus 1 according to the following procedure in order to perform maintenance.
  • the lower door 41 of the housing 4 is opened, and the engagement of the fastener 45b with the claw portion 17a is released.
  • the 1st support frame 11 with which the 1st feed roller 13 and the 1st support part 16a were attached is moved to the upper side and inner side (case 31 side). Thereby, since the endless belt 15 is loosened, the first support frame 11 to which the first feed roller 13 and the first support portion 16a are attached can be pulled out to the front.
  • the fastener 46b is disengaged from the claw portion 17b.
  • the 2nd support frame 12 to which the 2nd feed roller 14 and the 2nd support part 16b were attached is moved inside (case 31 side).
  • the timing belt 48 is loosened, the timing belt 48 can be detached from the timing pulleys 19 and 47.
  • the timing pulleys 19 and 47 and the timing belt 48 are disposed on the lower door 41 side, the timing belt 48 can be easily removed.
  • the second support frame 12 to which the second feed roller 14 and the second support portion 16b are attached is moved upward and outward (opposite the case 31), and the second support portion 16b is pulled out from the case 31. .
  • the 2nd support frame 12 to which the 2nd feed roller 14 and the 2nd support part 16b were attached can be pulled out to this side.
  • the transport unit 10 can be removed from the foreign matter inspection apparatus 1 by the above procedure.
  • the transport unit 10 can be attached to the foreign matter inspection apparatus 1 by a procedure reverse to the above procedure.
  • the support plate 16 that supports the endless belt 15 is separated into the first support portion 16a and the second support portion 16b that are arranged in parallel along the transport direction D. Therefore, when carrying out maintenance of the transport unit 10, it is not necessary to pull out the transport unit 10 integrally from the case 31 of the metal detection unit 3 along the transport direction D. Therefore, according to the foreign substance inspection apparatus 1, even if the space on both sides of the foreign substance inspection apparatus 1 in the conveyance direction D is limited, the maintenance of the conveyance unit 10 can be easily performed.
  • the carry-in conveyor 101 and the carry-out conveyor 102 are often arranged on both sides of the transport unit 10. Generally, the space on both sides of the foreign matter inspection apparatus 1 in the transport direction D is as follows. Often limited. Therefore, the configuration of the transport unit 10 of the foreign matter inspection apparatus 1 is extremely effective.
  • the foreign object inspection apparatus 1 is provided with an X-ray inspection unit 2 and a housing 4 in addition to the transport unit 10 and the metal detection unit 3.
  • the X-ray inspection unit 2 is provided in the foreign matter inspection apparatus 1
  • dirt or the like attached to the surface of the endless belt 15 tends to reduce the accuracy of the X-ray inspection.
  • the frequency of performing maintenance of the transport unit 10 is likely to increase.
  • the housing 4 is required to suppress external leakage of X-rays, so that the maintenance of the transport unit 10 is easily performed. It tends to be difficult.
  • the configuration of the transport unit 10 of the foreign object inspection apparatus 1 is particularly effective in the foreign object inspection apparatus 1 in which the X-ray inspection unit 2 and the housing 4 are provided in addition to the transport unit 10 and the metal detection unit 3.
  • a slit 16c through which the X-ray of the X-ray inspection unit 2 passes is formed in the second support portion 16b.
  • the first support portion 16a and the second support portion 16b are separated from each other outside the case 31 included in the metal detection unit 3. Thereby, compared with the case where the 1st support part 16a and the 2nd support part 16b are mutually isolate
  • a first feed roller 13 and a first support portion (a support portion disposed on the most upstream side of the transport region among a plurality of support portions) 16 a are attached to the first support frame 11.
  • the second support roller 12 and a second feed roller 14 and a second support portion (a support portion disposed on the most downstream side of the transport region among the plurality of support portions) 16b are attached.
  • the first support portion 16a and the second support portion 16b may be separated from each other inside the case 31 included in the metal detection unit 3. Even in this case, since it is not necessary to pull out the transport unit 10 as an integral part from the case 31 along the transport direction D, the maintenance of the transport unit 10 can be easily performed as compared to the case where the support plate 16 is not separated. Can do.
  • the opening such as the slit 16c through which the X-ray of the X-ray inspection unit 2 passes depends on the arrangement position of the X-ray inspection unit 2, the separation position of the first support part 16a and the second support part 16b, etc. It may be formed on either the first support portion 16a or the second support portion 16b. Further, according to the arrangement position of the X-ray inspection unit 2, the separation position of the first support part 16a and the second support part 16b, etc., the X-ray inspection is performed between the first support part 16a and the second support part 16b. A gap through which the X-rays of the portion pass may be formed. In that case, the strength of each of the first support portion 16a and the second support portion 16b can be maintained, and X-ray attenuation by the support plate 16 can be suppressed to perform the X-ray inspection with high accuracy.
  • the support plate 16 may include three or more support portions arranged in parallel along the transport direction D and separated from each other. Even when the support plate 16 is separated into two or three support parts arranged in parallel along the transport direction D, the opening such as the slit 16c through which the X-ray of the X-ray inspection unit 2 passes is as follows. It is formed on any one of the plurality of support portions according to the arrangement position of the X-ray inspection unit 2, the separation positions of the plurality of support portions, and the like. Alternatively, a gap through which the X-rays of the X-ray inspection unit pass is formed between the support portions adjacent to each other according to the arrangement position of the X-ray inspection unit 2, the separation positions of the plurality of support portions, and the like. In addition, when the support plate 16 is separated into two or three support portions arranged in parallel along the transport direction D, it is possible to reduce the complexity of the apparatus configuration and facilitate the maintenance of the transport unit. Can be achieved.
  • the foreign substance inspection apparatus 1 may include the transport unit 10 and the metal detection unit 3 without including the X-ray inspection unit 2 and the housing 4.
  • the support plate 16 may be configured.
  • the first support portion 16a has a first body plate 161 and a plurality of first engaging portions 162
  • the second support portion 16b is a second body plate. 163 and a plurality of second engaging portions 164.
  • the upper surface 161a of the first main body plate 161 and the upper surface 163a of the second main body plate 163 are located on the same plane, and constitute a support surface of the endless belt 15.
  • the end surface 161b of the first body plate 161 and the end surface 163b of the second body plate 163 are in contact with each other.
  • the plurality of first engaging portions 162 are attached to the lower side of the first main body plate 161 and protrude to the second support portion 16b side.
  • Each of the first engaging portions 162 is formed in a rectangular plate shape, and is separated from each other in the front-rear direction (a horizontal direction orthogonal to the transport direction of the inspection object S by the transport unit 10).
  • the plurality of second engaging portions 164 are attached to the lower side of the second main body plate 163 and protrude to the first support portion 16a side.
  • Each second engaging portion 164 is formed in a rectangular plate shape and is separated from each other in the front-rear direction.
  • each first engagement portion 162 that protrudes toward the second support portion 16 b is located below the second main body plate 163.
  • a portion of each second engagement portion 164 that protrudes toward the first support portion 16 a is located below the first main body plate 161.
  • the plurality of first engaging portions 162 and the plurality of second engaging portions 164 are arranged such that the end surface 161b of the first main body plate 161 and the end surface 163b of the second main body plate 163 are in contact with each other.
  • the two engaging portions 164 are arranged alternately.
  • first engaging portion 162 is located between the second engaging portions 164 adjacent to each other, and at least one second engaging portion 162 is provided.
  • the engaging portions 164 are engaged with each other with the engaging portions 164 positioned between the first engaging portions 162 adjacent to each other.
  • first engagement portion 162 may be provided, and the one first engagement portion 162 may be positioned between the second engagement portions 164 adjacent to each other.
  • second engaging portion 164 may be provided, and the one second engaging portion 164 may be located between the first engaging portions 162 adjacent to each other.
  • the endless belt 15 can be stably supported. Further, X-ray leakage can be reliably prevented. Further, at the time of maintenance, as shown in FIGS. 9 and 10, the first support portion 16a and the second support portion 16b can be easily separated by moving the first support portion 16a so as to be bent upward. Can do.

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  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Toxicology (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

Ce dispositif conçu pour examiner des corps étrangers comprend : une unité de transport qui transporte un objet à examiner; et une unité de détection de métal qui utilise une interaction entre un champ magnétique et le métal pour détecter, en tant que corps étranger, tout métal contenu dans l'objet à examiner qui est transporté par l'unité de transport. L'unité de transport comprend : un premier rouleau d'alimentation disposé à l'extrémité amont d'une région de transport dans laquelle l'objet à examiner est transporté par l'unité de transport; un second rouleau d'alimentation disposé à l'extrémité aval de la région de transport; une courroie sans fin suspendue entre le premier et le second rouleau d'alimentation; et une plaque de support qui soutient la courroie sans fin dans la région de transport. La plaque de support comprend une pluralité de parties de support qui sont disposées côte à côte dans la direction dans laquelle l'objet à examiner est transporté par l'unité de transport, et qui sont séparées les unes des autres.
PCT/JP2017/021004 2016-06-06 2017-06-06 Dispositif pour examiner des corps étrangers WO2017213146A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780034732.4A CN109313280A (zh) 2016-06-06 2017-06-06 异物检查装置
JP2018521737A JP7011261B2 (ja) 2016-06-06 2017-06-06 異物検査装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016112588 2016-06-06
JP2016-112588 2016-06-06

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WO2017213146A1 true WO2017213146A1 (fr) 2017-12-14

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CN108802072A (zh) * 2018-06-15 2018-11-13 珠海格力电器股份有限公司 检测装置
CN114384985A (zh) * 2022-03-23 2022-04-22 山东中颖智超数据科技有限公司 一种硬盘数据恢复辅助装置

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JP6123005B2 (ja) * 2015-10-01 2017-04-26 株式会社イシダ 異物検査装置

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JPH0781729A (ja) * 1993-09-10 1995-03-28 Anritsu Corp 金属検出機
US20030164766A1 (en) * 2000-04-20 2003-09-04 Britton Andrew Michael Metal detector
JP2004301763A (ja) * 2003-03-31 2004-10-28 Tok Engineering Kk チェーン型コンベヤ対応金属探知装置
JP2009109298A (ja) * 2007-10-29 2009-05-21 Uchihashi Estec Co Ltd 磁性異物検出装置
JP2015028465A (ja) * 2013-06-25 2015-02-12 日新電子工業株式会社 異物検査装置

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JP4442990B2 (ja) 2000-05-11 2010-03-31 株式会社イシダ コンベア装置を備えた重量チェッカ
JP3526263B2 (ja) * 2000-09-08 2004-05-10 株式会社イシダ Ｘ線異物検査装置
JP4445159B2 (ja) 2001-05-11 2010-04-07 株式会社イシダ 金属検出装置
JP6654392B2 (ja) 2015-10-01 2020-02-26 株式会社イシダ 異物検査装置

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Publication number Priority date Publication date Assignee Title
JPH0781729A (ja) * 1993-09-10 1995-03-28 Anritsu Corp 金属検出機
US20030164766A1 (en) * 2000-04-20 2003-09-04 Britton Andrew Michael Metal detector
JP2004301763A (ja) * 2003-03-31 2004-10-28 Tok Engineering Kk チェーン型コンベヤ対応金属探知装置
JP2009109298A (ja) * 2007-10-29 2009-05-21 Uchihashi Estec Co Ltd 磁性異物検出装置
JP2015028465A (ja) * 2013-06-25 2015-02-12 日新電子工業株式会社 異物検査装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108802072A (zh) * 2018-06-15 2018-11-13 珠海格力电器股份有限公司 检测装置
CN114384985A (zh) * 2022-03-23 2022-04-22 山东中颖智超数据科技有限公司 一种硬盘数据恢复辅助装置

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JPWO2017213146A1 (ja) 2019-03-28
JP7011261B2 (ja) 2022-01-26
CN109313280A (zh) 2019-02-05

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