WO2022039511A1 - Dispositif d'inspection de masque - Google Patents

Dispositif d'inspection de masque Download PDF

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Publication number
WO2022039511A1
WO2022039511A1 PCT/KR2021/011000 KR2021011000W WO2022039511A1 WO 2022039511 A1 WO2022039511 A1 WO 2022039511A1 KR 2021011000 W KR2021011000 W KR 2021011000W WO 2022039511 A1 WO2022039511 A1 WO 2022039511A1
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WO
WIPO (PCT)
Prior art keywords
mask
unit
band
movable bar
inspection
Prior art date
Application number
PCT/KR2021/011000
Other languages
English (en)
Korean (ko)
Inventor
한동희
Original Assignee
한동희
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 한동희 filed Critical 한동희
Publication of WO2022039511A1 publication Critical patent/WO2022039511A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B07B13/16—Feed or discharge arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/045—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands for measuring the tension across the width of a band-shaped flexible member
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/06—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using mechanical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8806—Specially adapted optical and illumination features
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8806—Specially adapted optical and illumination features
    • G01N2021/8809—Adjustment for highlighting flaws
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques

Definitions

  • the present invention relates to a mask inspection apparatus, and more particularly, to a mask inspection apparatus capable of inspecting a sanitary state and a band attachment state for a mask having a band attached to both sides of a mask body.
  • Masks are used to cover the nose and mouth to prevent inhalation and scattering of germs or dust.
  • the mask is popularly used for the purpose of preventing respiratory diseases by preventing the inflow of fine foreign substances including dust from the outside into the body through the mouth and nose.
  • the mask is manufactured in the form of a mask body in the form of a sheet made of a fiber material such as gauze or non-woven fabric, and a band is attached to both sides of the mask body to wrap around the nose, mouth and chin.
  • a mask manufacturing facility includes a fabric supply device for supplying a mask fabric for making a mask body, a mask molding device for laminating and molding the mask fabric to make a mask body, and a band attachment device for attaching a band to the mask body do.
  • an inspection process of inspecting whether the mask is defective before packaging the mask is required. That is, the manufactured mask undergoes an inspection process for sanitary conditions and band attachment conditions before packaging. In the sanitary condition inspection, it is checked whether contaminants such as mold or foreign substances are present in the mask. And in the band attachment state inspection, it is checked whether the band is firmly attached to the mask body. In the inspection process, good and defective products are sorted, and defective products are discarded.
  • the present invention has been devised in view of the above points, and an object of the present invention is to provide a mask inspection apparatus capable of increasing the precision and efficiency of mask inspection and shortening the mask inspection time.
  • a mask inspection apparatus for achieving the object as described above, the table; a lighting unit installed on the table and having a light-transmitting mounting part on which the mask body can be placed, and a lamp installed below the mounting part to irradiate light toward the mounting part; a vision unit for acquiring a photographed image by photographing the mask body so as to check the presence or absence of foreign substances in the mask body placed on the mounting part; and a first movable bar installed on the table so as to move away from or closer to the mounting part in order to apply a tension force to the band by pulling the band attached to one side of the mask body in a direction away from the mask body; A second movable bar installed on the table so as to move away from or closer to the mounting part in order to apply a tension force to the band by pulling the band attached to the other side of the main body in a direction away from the mask body; It includes; a band inspection unit having a driving unit that provides a moving force to each of the first movable bar and the second movable
  • the band inspection unit may include a sensor installed on the table to detect the movement of at least one of the first movable bar and the second movable bar to generate a detection signal.
  • the driving unit provides a movement force to the first movable bar and the second movable bar to move by a preset movement distance, respectively, and the first movable bar is constrained by the band in a state in which the band is caught, so that the movement distance is preset. It is limited to less than a set inspection distance, and the second movable bar is constrained by the band in a state in which the band is caught, so that its movement distance is limited to less than the inspection distance, and the sensor is the first movable bar or the second movable bar.
  • a detection signal may be generated when the band is released from the mask body to release the band's restraint and deviate from the inspection distance.
  • the sensor may be installed at a position where the first movable bar or the second movable bar moved to deviate from the inspection distance can come into contact.
  • the mask inspection apparatus may further include a plurality of fixing members installed so as to protrude from the mounting unit in contact with the edge of the mask body to limit movement of the mask body on the mounting unit.
  • a mask inspection apparatus includes: a non-defective product discharge unit in which a mask determined as a non-defective product can be placed; a defective product collection unit for collecting the mask determined as defective; and a mask transfer unit that transports the inspected mask from the mounting unit to the good product discharging unit or the defective product collecting unit.
  • the table is provided with a plurality of table grooves into which the first movable bar and the second movable bar are inserted, and each end of the first movable bar and the second movable bar protrudes from the upper surface of the table, and the driving unit may be installed lower than the upper surface of the table.
  • the mask inspection apparatus may further include a rotation driver for intermittently rotating the table by a predetermined angle, wherein a plurality of the lighting unit and the band inspection unit are spaced apart from each other at regular angular intervals on the table. there is.
  • a plurality of work zones in which the lighting unit and the band inspection unit stop are disposed in the rotation path of the table, and the vision unit may be installed in any one of the plurality of work zones.
  • the band inspection unit may be controlled to operate in another work zone in which the vision unit is not installed among the plurality of work zones.
  • the mask inspection apparatus can automatically perform a hygiene condition inspection on the mask by placing the mask on a lighting unit capable of illuminating the mask and photographing the mask with a vision unit. And by pulling the band of the mask placed on the lighting unit in a direction away from the mask body and applying a tension force to the band, it is possible to automatically perform a band attachment state inspection to the mask.
  • FIG. 1 is a plan view showing a mask inspection apparatus according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing a partial configuration of a mask inspection apparatus according to an embodiment of the present invention.
  • FIG 3 is a side view illustrating a partial configuration of a mask inspection apparatus according to an embodiment of the present invention.
  • FIG. 4 is a plan view illustrating a partial configuration of a mask inspection apparatus according to an embodiment of the present invention.
  • 5 to 7 are for explaining the operation of the band inspection unit provided in the mask inspection apparatus according to an embodiment of the present invention.
  • FIG. 9 is a plan view showing a mask inspection apparatus according to another embodiment of the present invention.
  • FIG. 10 is a plan view illustrating a partial configuration of a mask inspection apparatus according to another embodiment of the present invention.
  • FIG. 11 is a side view illustrating a partial configuration of a mask inspection apparatus according to another embodiment of the present invention.
  • first pusher 132 first movable bar
  • first connection 135 second pusher
  • driving unit 140 first actuator
  • control unit 215 rotation actuator
  • the mask inspection apparatus 100 includes a table 110, a plurality of lighting units 115 installed on the table 110, and a lighting unit 115 placed on the A vision unit 125 for image inspection of the mask 10 , a plurality of band inspection units 130 for inspecting the band attachment state of the mask 10 , and a mask supply unit for supplying the mask 10 to be inspected 150, a good product discharge unit 155 for discharging the good product mask, a defective product collection unit 160 for collecting the defective mask, a mask transfer unit 165 for transporting the mask 10, and the mask and a control unit 170 for controlling the overall operation of the inspection apparatus 100 .
  • the mask inspection apparatus 100 performs a sanitary state inspection and a band attachment state inspection on the mask 10 to which the bands 12 are attached to both sides of the mask body 11 .
  • the mask 10 is photographed with the vision unit 125 to check whether contaminants such as mold or foreign substances exist in the mask 10 .
  • the band attachment state inspection it is checked whether the band 12 is stably attached to the mask body 11 with the band inspection unit 130 .
  • the table 110 supports a plurality of lighting units 115 and a plurality of band inspection units 130 .
  • the table 110 is provided with a plurality of table grooves 111 .
  • the table grooves 111 are disposed one at each left and right sides of each of the plurality of lighting units 115 .
  • the first movable bar 132 or the second movable bar 136 of the band inspection unit 130 is inserted into each of the table grooves 111 .
  • a guide part 112 is provided inside each table groove 111 .
  • the guide part 112 guides the first movable bar 132 or the second movable bar 136 to linearly move.
  • the lighting unit 115 includes a housing 116 and a lamp 118 installed inside the housing 116 .
  • the housing 116 is provided with a mounting portion 117 on which the mask body 11 of the mask 10 is placed.
  • the mounting part 117 has light transmittance so that light generated from the lamp 118 can pass therethrough.
  • the mounting part 117 may be made of a transparent or translucent material.
  • the mounting portion 117 may have a width capable of supporting one mask body 11 .
  • the lamp 118 is installed inside the housing 116 and irradiates light toward the mounting part 117 . As the lamp 118, various things that can generate light, such as an LED, may be used.
  • a plurality of fixing members 120 are disposed around the lighting unit 115 .
  • the fixing member 120 is installed on the table 110 so as to protrude from the mounting part 117 .
  • the plurality of fixing members 120 limit the movement of the mask body 11 on the mounting unit 117 by being in contact with the edge of the mask body 11 placed on the mounting unit 117, and attaching the mask body 11 to the mounting unit 117. placed stably in
  • the specific shape, number, arrangement, and the like of the fixing member 120 are not limited to those shown and may be variously changed.
  • the vision unit 125 is installed on the table 110 to photograph the mask body 11 placed on the lighting unit 115 .
  • the vision unit 125 may acquire a photographed image of the mask body 11 by photographing the mask body 11 being illuminated by the lighting unit 115 .
  • the captured image acquired by the vision unit 125 may be provided to the controller 170 .
  • the controller 170 may determine whether the mask body 11 is contaminated by comparing the captured image obtained by the vision unit 125 with a preset reference image.
  • the reference image may be an image obtained by photographing a clean mask body that is not contaminated with mold or foreign substances. Points or stains due to the contaminants may appear in the photographed image obtained from the mask body in which contaminants such as mold or foreign substances exist. Accordingly, the control unit 170 may determine that the mask body having a photographed image in which dots or spots are indicated, unlike the reference image, is defective.
  • the plurality of band inspection units 130 are installed on the table 110 to correspond to the plurality of lighting units 115 .
  • the band inspection unit 130 includes a first pusher 131 for applying a tension force to the band 12 attached to one side of the mask body 11 and a band 12 attached to the other side of the mask body 11 .
  • a pair of sensors 143 and 144 installed to be spaced apart from each other by a predetermined distance from the lighting unit 115 are included in response to (135).
  • one sensor 143 is disposed to be spaced apart from the lighting unit 115 by a certain distance in the right direction
  • the other sensor 144 is disposed to be spaced apart from the lighting unit 115 by a certain distance in the left direction.
  • the first pusher 131 includes a first movable bar 132 movably installed on the table 110 so as to be in contact with the band 12 attached to one side of the mask body 11 , and a first movable bar 132 . ) and a first connection part 133 for connecting the driving part 139 .
  • the first movable bar 132 is inserted into the table groove 111 provided on the right side of the lighting unit 115 with reference to FIG. 3 to move linearly along the table groove 111 . That is, the first movable bar 132 may be moved away from the mounting portion 117 of the lighting unit 115 or closer to the mounting portion 117 by linear movement along the table groove 111 .
  • the first movable bar 132 moves in a direction away from the mounting part 117 in a state in which the band 12 is caught on the first movable bar 132 , the band 12 is pulled away from the mask body 11 . do. At this time, a tension force is applied to the band 12 as the elastic band 12 is stretched.
  • the first movable bar 132 is partially inserted into the table groove 111 to penetrate the table 110 in the thickness direction.
  • the first movable bar 132 protrudes higher than the fixing member 120 from the upper surface of the table 110 .
  • the first movable bar 132 is supported to move linearly by the guide part 112 provided in the table groove 111 .
  • the first movable bar 132 preferably has a curved surface in contact with the band 12 so as not to damage the band 12 when the first movable bar 132 is in contact with the band 12 .
  • the first connection part 133 connects the first movable bar 132 and the driving part 139 to transmit the moving force of the driving part 139 to the first movable bar 132 .
  • the first connection unit 133 may have various other structures connecting the driving unit 139 and the first movable bar 132 in addition to the illustrated structure.
  • the second pusher 135 includes a second movable bar 136 movably installed on the table 110 so as to be in contact with the band 12 attached to the other side of the mask body 11, and a second movable bar ( It includes a second connection part 137 connecting the 136 and the driving part 139 .
  • the second movable bar 136 is inserted into the table groove 111 provided on the left side of the lighting unit 115 with reference to FIG. 3 to move linearly along the table groove 111 . That is, the second movable bar 136 may be moved away from the mounting portion 117 of the lighting unit 115 or closer to the mounting portion 117 by linear movement along the table groove 111 .
  • the second movable bar 136 moves in a direction away from the mounting part 117 in a state in which the band 12 is caught on the second movable bar 136 , the band 12 is pulled away from the mask body 11 . do. At this time, a tension force is applied to the band 12 as the elastic band 12 is stretched.
  • the second movable bar 136 is partially inserted into the table groove 111 and penetrates the table 110 in the thickness direction.
  • the second movable bar 136 protrudes higher than the fixing member 120 from the upper surface of the table 110 like the first movable bar 132 .
  • the second movable bar 136 is supported to move linearly by the guide part 112 provided in the table groove 111 .
  • the second movable bar 136 may have the same structure as the first movable bar 132 , and its shape may be variously changed.
  • the second connection unit 137 connects the second movable bar 136 and the driving unit 139 to transmit the moving force of the driving unit 139 to the second movable bar 136 .
  • the second connection unit 137 may have various other structures connecting the driving unit 139 and the second movable bar 136 in addition to the illustrated structure.
  • the driving unit 139 is installed on the table 110 to provide the same moving force to the first pusher 131 and the second pusher 135 .
  • the driving unit 139 is preferably disposed lower than the upper surface of the table 110 so as not to interfere with the mask 10 placed on the table 110 .
  • the driving unit 139 includes a first actuator 140 for providing a moving force to the first pusher 131 and a second actuator 141 for providing a moving force to the second pusher 135 .
  • the first actuator 140 is connected to the first connection part 133
  • the second actuator 141 is connected to the second connection part 137 .
  • the first actuator 140 provides a moving force to the first movable bar 132 to move the first movable bar 132 from an initial position adjacent to the mounting unit 117 to a position spaced apart from the mounting unit 117 by a predetermined distance.
  • the first actuator 140 presses the first movable bar 132 in a direction away from the mounting part 117 the first movable bar 132 may move by a preset movement distance.
  • the preset movement distance may be set to a position in which the first movable bar 132 comes into contact with one sensor 143 from an initial position adjacent to the mounting part 117 . That is, when there is no other external force, the first movable bar 132 may move to a position in contact with the sensor 143 by the first actuator 140 .
  • the second actuator 141 provides the second movable bar 136 with a moving force equal to the moving force that the first actuator 140 moves the first movable bar 132 . That is, the second actuator 141 provides a moving force to the second movable bar 136 to move the second movable bar 136 from an initial position adjacent to the mounting unit 117 to a position spaced apart from the mounting unit 117 by a predetermined distance. can be moved When the second actuator 141 presses the second movable bar 136 in a direction away from the mounting part 117 , the second movable bar 136 may move by a preset movement distance.
  • the preset movement distance may be set to a position where the second movable bar 136 comes into contact with the other sensor 144 from an initial position adjacent to the mounting part 117 . That is, the second movable bar 136 may move to a position in contact with the sensor 144 by the second actuator 141 when there is no other external force.
  • the first actuator 140 or the second actuator 141 may take various structures capable of providing a moving force for moving the first movable bar 132 and the second movable bar 136 by a preset movement distance, respectively. there is.
  • the driving unit 139 has a structure that elastically presses the first movable bar 132 and the second movable bar 136 in addition to the structure including the first actuator 140 and the second actuator 141 , such as a moving force. can be modified into a variety of other structures that can provide
  • a pair of sensors 143 and 144 are spaced apart from both left and right sides of the lighting unit 115 by the same distance, respectively, and installed at a position where the first movable bar 132 and the second movable bar 136 can contact each other. do.
  • the first movable bar 132 may move to a position in contact with one sensor 143 by the moving force of the driving unit 139 when no other external force is applied.
  • the second movable bar 136 also moves by the same moving distance as the moving distance of the first movable bar 132 by the moving force of the driving unit 139 when no other external force is applied to contact the other sensor 144 . can do.
  • the second movable bar when the moving force is provided to the first movable bar 132 and the second movable bar 136 in a state where the band 12 is caught on the first movable bar 132 and the second movable bar 136, respectively, the second movable bar
  • the movement of the first movable bar 132 and the second movable bar 136 is restricted by the band 12 . That is, the first movable bar 132 and the second movable bar 136 receive a reaction force in the opposite direction to the respective moving force by the band 12 . Accordingly, the first movable bar 132 and the second movable bar 136 appear shorter than the preset movement distance, respectively. Specifically, as shown in Fig.
  • the moving distances of the first movable bar 132 and the second movable bar 136 are each less than or equal to a preset inspection distance Dt. Limited.
  • the inspection distance Dt is the first movable bar 132 and the second movable bar when a preset reference tension force is applied to the band 12 by the first movable bar 132 and the second movable bar 136 .
  • the distance the bar 136 can be spaced from its initial position.
  • the reference tension force may be set to an appropriate size for classifying the attachment state of the band 12 as normal or bad.
  • a reference tension force is applied to the band 12
  • the corresponding mask 10 can be determined to be a good product. there is.
  • the mask 10 may be determined as a defective product.
  • the binding force of the first movable bar 132 and the second movable bar 136 by the band 12 is released.
  • the first movable bar 132 and the second movable bar 136 deviate from the inspection distance Dt by the moving force provided from the driving unit 139 to reach the sensors 143 and 144 .
  • the sensors 143 and 144 generate a detection signal, and are generated from the sensors 143 and 144
  • the detection signal is transmitted to the control unit 170 .
  • the control unit 170 may receive a detection signal from the sensors 143 and 144 to determine the corresponding mask 10 as a defective product.
  • the sensors 143 and 144 are not limited to a structure in which the first movable bar 132 or the second movable bar 136 directly contacts to generate a detection signal as described above. That is, the sensors 143 and 144 may take various other structures capable of sensing the movement of the first movable bar 132 or the second movable bar 136 in a contact or non-contact manner.
  • the structure of the band inspection unit 130 may be variously changed.
  • the band inspection unit 130 may include one sensor capable of detecting the movement of any one of the first movable bar 132 or the second movable bar 136 .
  • a sensor for detecting the movement of the first movable bar 132 or the second movable bar 136 in the band inspection unit 130 may be omitted.
  • the band inspection unit 130 detects the tension force of the band 12 or detects the separation or breakage of the band 12 in another method such as image analysis to perform a band attachment state inspection. there is.
  • the mask supply unit 150 may continuously supply the inspection target mask 10 to a position where the mask transfer unit 165 can pick it up.
  • the mask supply unit 150 may have various structures capable of transporting the masks 10 , such as a conveyor structure capable of pitching the plurality of masks 10 at regular intervals.
  • the non-defective product discharging unit 155 transfers the mask 10 determined as a non-defective product to a predetermined position. After the hygiene condition inspection and the band attachment state inspection, the mask 10 determined to be a good product is transferred to the non-defective product discharge unit 155 by the mask transfer unit 165 .
  • the non-defective product discharge unit 155 may have various structures such as a conveyor structure capable of continuously transferring the mask 10 carried by the mask transfer unit 165 .
  • the defective product collecting unit 160 is installed to collect the mask 10 determined as a defective product. After the hygiene condition inspection and the band attachment state inspection, the mask 10 determined as a defective product is transferred to the defective product collection unit 160 by the mask transfer unit 165 .
  • the mask transfer unit 165 picks up the mask 10 supplied by the mask supply unit 150 and transports it over the lighting unit 115, and transfers the mask 10 that has been inspected by the lighting unit 115 to the non-defective discharge unit ( 155) or transferred to the defective product collection unit 160 .
  • the mask transfer unit 165 has an adsorption unit 166 capable of adsorbing the mask 10 .
  • the mask transfer unit 165 may include a number of adsorption units 166 corresponding to the number of lighting units 115 disposed on the table 110 .
  • the mask transfer unit 165 may pick up the plurality of masks 10 by the plurality of adsorption units 166 and transport them at once.
  • the mask transfer unit 165 may be changed to various other structures capable of picking up and transporting the mask 10 in addition to the structure including the plurality of adsorption units 166 .
  • one mask transfer unit 165 picks up the mask 10 and transports it over the lighting unit 115 , and transports the mask 10 inspected by the lighting unit 115 to the non-defective discharge unit 155 or Although it was shown to be transported to the defective product collection unit 160, the mask transport unit 165 picks up the mask 10 and transports the mask 10 over the lighting unit 115 and the lighting unit 115 after inspection ( A plurality of transfer units for transporting 10) to the good product discharge unit 155 or the defective product collection unit 160 may be disposed.
  • the control unit 170 controls operations of the lighting unit 115 , the vision unit 125 , the band inspection unit 130 , the mask supply unit 150 , the mask transfer unit 165 , and the like. That is, the controller 170 controls the overall operation of the mask inspection apparatus 100 so that the sanitary state inspection and the band attachment state inspection for the mask 10 can be continuously performed.
  • the mask transfer unit 165 picks up the mask 10 from the mask supply unit 150 .
  • the mask transfer unit 165 places the mask body 11 on the mounting part 117 by transporting the mask 10 .
  • the mask body 11 is surrounded by a plurality of fixing members 120 and can be stably placed on the mounting part 117 .
  • the band 12 attached to the right edge of the mask body 11 is placed on the table 110 while surrounding the first movable bar 132, and the band attached to the left edge of the mask body 11 ( 12 is placed on the table 110 while surrounding the second movable bar 136 .
  • the mask body 11 is placed on the lighting unit 115 and the vision unit 125 photographs the mask body 11 in a state where the lighting unit 115 illuminates the mask body 11 to obtain a photographed image.
  • the captured image obtained by the vision unit 125 is provided to the controller 170 , and the controller 170 compares the captured image obtained by the vision unit 125 with a preset reference image to contaminate the mask body 11 . will decide whether The control unit 170 selects the mask body 11 as good or defective according to the sanitary condition inspection result.
  • the control unit 170 operates the band inspection unit 130 so that the band attachment state inspection is performed on the mask 10 in a state where the mask body 11 is placed on the mounting unit 117 .
  • the driving unit 139 of the band inspection unit 130 provides a moving force capable of moving by a preset moving distance to the first movable bar 132 and the second movable bar 136 , respectively.
  • the first movable bar 132 and the second movable bar 136 move in a direction away from the mounting part 117 in a state in which the band 12 is caught, respectively.
  • the first movable bar 132 or the second movable bar deviate from the inspection distance Dt by the moving force of the driving unit 139 and reach the sensors 143 and 144 .
  • the sensors 143 and 144 generate a detection signal and are transmitted to the control unit 170 .
  • the control unit 170 receives a detection signal from the sensors 143 and 144 , the control unit 170 determines the mask 10 as a defective product.
  • the control unit. (170) is input.
  • the first movable bar 132 and the second movable bar 136 return to their initial positions, and the mask transfer unit 165 operates to determine the mask 10 disposed on the table 110 . Accordingly, it is transported to the good product discharge unit 155 or the defective product collection unit 160 .
  • the mask 10 located in the center among the three masks 10 that has undergone the hygiene condition inspection and the band attachment state inspection on the table 110 is determined as a defective product, and the remaining masks 10
  • the mask transfer unit 165 transports the two masks 10 that are good products to the good product discharge unit 155 and one mask 10 that is a defective product to the defective product collection unit 160 . That is, the mask transfer unit 165 holds the three masks 10 at once as shown in FIG. Put it on the good product discharge part (155).
  • one mask 10 determined as a defective product is transported over the defective product collecting unit 160 and dropped on the defective product collecting unit 160 .
  • the mask 10 is placed on the illumination unit 115 capable of illuminating the mask 10 , and the mask is applied to the vision unit 125 .
  • photographing (10) it is possible to automatically perform a sanitary condition inspection on the mask (10).
  • the band attachment state inspection to the mask 10 is automatically performed. can be done with Therefore, it is possible to increase the precision and efficiency of the mask inspection and shorten the mask inspection time.
  • FIG. 9 is a plan view showing a mask inspection apparatus according to another embodiment of the present invention
  • FIG. 10 is a plan view showing a partial configuration of a mask inspection apparatus according to another embodiment of the present invention
  • FIG. 11 is another embodiment of the present invention. It is a side view showing a partial configuration of a mask inspection apparatus according to an embodiment.
  • the mask inspection apparatus 200 is placed on a table 210, a plurality of lighting units 115 installed on the table 210, and the lighting unit 115.
  • a vision unit 125 for image inspection of the mask 10 a plurality of band inspection units 130 for inspecting the band attachment state of the mask 10 , and a mask supply unit for supplying the mask 10 to be inspected 220 , a good product discharge unit 225 for discharging the good product mask, a defective product collection unit 230 for collecting the defective mask, a mask transfer unit 235 for conveying the mask 10 , and the mask and a control unit 240 for controlling the overall operation of the inspection apparatus 200 .
  • the specific structure and operation of the lighting unit 115 , the vision unit 125 , and the band inspection unit 130 are the same as described above.
  • the table 210 rotates by receiving a rotational force from the rotation driver 215 .
  • the rotation driver 215 may be controlled by the controller 240 to intermittently rotate the table 210 by a predetermined angle. In this embodiment, the table 210 intermittently rotates by 90 degrees.
  • the table 210 is formed in a cross shape including four ends.
  • the lighting unit 115 and the band inspection unit 130 are installed at each of the four ends. In this embodiment, the lighting unit 115 and the band inspection unit 130 are arranged at each end of the table 210 three each.
  • a plurality of work zones are provided in the rotation path of the table 210 .
  • the plurality of work zones include a loading zone Z1 , a vision inspection zone Z2 , a band inspection zone Z3 , and an unloading zone Z4 .
  • the loading zone Z1 , the vision inspection zone Z2 , the band inspection zone Z3 , and the unloading zone Z4 are sequentially arranged at intervals of 90 degrees along the rotation direction of the table 210 .
  • the lighting unit 115 and the band inspection unit 130 disposed on the table 210 according to the intermittent rotation of the table 210 include a loading zone Z1, a vision inspection zone Z2, and a band inspection zone Z3. And, it can stop in the unloading zone (Z4).
  • the vision unit 125 is installed in the vision inspection zone Z2.
  • the table 210 can be changed to various other shapes that can rotate and support the plurality of lighting units 115 and the band inspection unit 130 in addition to the cross shape shown.
  • the mask supply unit 220 may continuously supply the inspection target mask 10 to a position where the mask transfer unit 235 can pick it up.
  • the mask supply unit 220 may have various structures capable of transporting the masks 10 , such as a conveyor structure capable of pitching the plurality of masks 10 at regular intervals.
  • the non-defective product discharging unit 225 transfers the mask 10 determined as a non-defective product to a predetermined position. After the hygiene condition inspection and the band attachment state inspection, the mask 10 determined to be a good product is transferred to the non-defective product discharge unit 225 by the mask transfer unit 235 .
  • the non-defective product discharge unit 225 may have various structures such as a conveyor structure capable of continuously transferring the mask 10 carried by the mask transfer unit 235 .
  • the defective product collecting unit 230 is installed to collect the mask 10 determined as a defective product. After the sanitary condition inspection and the band attachment state inspection, the mask 10 determined as a defective product is transported to the defective product collection unit 230 by the mask transfer unit 235 and collected.
  • the mask transfer unit 235 picks up the mask 10 supplied by the mask supply unit 220 and transports it over the lighting unit 115, and transfers the mask 10 that has been inspected by the lighting unit 115 to the non-defective discharge unit ( 225) or transferred to the defective product collection unit 230 .
  • the mask transfer unit 235 is a loading unit 236 that picks up the mask 10 supplied by the mask supply unit 220 and transports it over the lighting unit 115 , and the mask 10 that has been inspected on the table 210 . and an unloading unit 238 for transporting the product to the good product discharge unit 225 or the defective product collection unit 230 .
  • the loading unit 236 and the unloading unit 238 have an adsorption unit 237 capable of adsorbing the mask 10 .
  • the loading unit 236 and the unloading unit 238 may include a number of adsorption units 237 corresponding to the number of lighting units 115 disposed on the table 210 .
  • the loading unit 236 and the unloading unit 238 may pick up and transport the plurality of masks 10 at once using the plurality of adsorption units 237 .
  • the loading unit 236 and the unloading unit 238 may be changed to various other structures capable of picking up and transporting the mask 10 in addition to the structure including the plurality of adsorption units 166 .
  • the control unit 240 operates the rotation driver 215 , the lighting unit 115 , the vision unit 125 , the band inspection unit 130 , the mask supply unit 220 , the mask transfer unit 235 , and the like. to control That is, the controller 240 controls the overall operation of the mask inspection apparatus 200 so that the sanitary state inspection and the band attachment state inspection for the mask 10 can be continuously performed.
  • the control unit 240 intermittently rotates the table 210 by 90 degrees and operates the mask supply unit 220 to transport the inspection target mask 10 to a position where the loading unit 236 can pick it up. make it
  • the loading unit 236 picks up the mask 10 and transports it over the mounting portion 117 of the lighting unit 115 located in the loading zone Z1.
  • the mask body 11 may be surrounded by a plurality of fixing members 120 to maintain a stable state placed on the mounting portion 117 .
  • the band 12 attached to the right edge of the mask body 11 is placed on the table 210 to surround the first movable bar 132, and the band attached to the left edge of the mask body 11 ( 12 is placed on the table 210 to surround the second movable bar 136 .
  • the vision unit 125 takes a picture of the mask 10 to perform a hygiene condition inspection.
  • the specific method of the sanitary condition inspection is the same as described above.
  • the position of the mask 10 determined as good and the position of the mask 10 determined as defective in the sanitary condition inspection may be input to the controller 240 .
  • the table 210 rotates 90 degrees so that the mask 10 placed on the lighting unit 115 reaches the band inspection zone Z3.
  • the band inspection unit 130 operates to perform a band attachment state inspection on the mask 10 .
  • a specific method of inspecting the band attachment state is the same as described above.
  • the position of the mask 10 determined to be good and the position of the mask 10 determined to be defective in the band attachment state inspection may be input to the control unit 240 .
  • the controller 240 controls the rotation driver 215 to rotate the table 210 by 90 degrees.
  • the mask 10 placed on the lighting unit 115 reaches the unloading zone Z4.
  • the unloading unit 238 operates to transport the mask 10 , which has been inspected, to the good product discharge unit 225 or the defective product collection unit 230 according to the determination result.
  • the mask 10 located in the middle among the three masks 10 that has undergone the hygiene condition inspection and the band attachment state inspection on the table 210 is determined as a defective product, and the remaining masks 10
  • the unloading unit 238 transfers the two masks 10 that are good products to the good product discharge unit 225 , and transfers one mask 10 that is a defective product to the defective product collection unit 230 .
  • the unloading unit 238 holds the three masks 10 located in the unloading zone Z4 at once as shown in FIG. 12A .
  • the unloading unit 238 holding the three masks 10 moves over the non-defective product discharging unit 225 and only the two masks 10 determined to be non-defective are the non-defective discharging units. (225) put it on top.
  • the unloading unit 238 moves over the defective product collecting unit 230 while holding one mask 10 determined as a defective product, as shown in FIG. 12C , and the defective product collecting unit 230 ) is dropped on
  • Mask inspection apparatus 200 while intermittently rotating the table 210 on which a plurality of masks 10 are loaded, a loading process for the mask 10, a sanitary condition inspection process, and a band attachment
  • the state inspection process, the unloading process, or the good/defective product selection process may be continuously performed at the same time. Accordingly, the inspection of the mask 10 can be performed precisely and efficiently, and the inspection time can be further shortened.
  • the table 210 may be intermittently rotated at various other angular intervals other than 90 degrees according to the number or separation angle of the lighting unit 115 and the band inspection unit 130, respectively.
  • the table 210 intermittently rotates by 90 degrees, and along the rotation path of the table 210 , a loading zone Z1 , a vision inspection zone Z2 , a band inspection zone Z3 , and an unloading zone
  • a loading zone Z1 a loading zone
  • a vision inspection zone Z2 a vision inspection zone Z2
  • a band inspection zone Z3 a unloading zone
  • the intermittent rotation angle of the table 210 may be variously changed.
  • the number or type of work zones arranged along the rotation path of the table 210 may be variously changed.
  • the band attachment state inspection may be performed in various work zones on the rotation path.
  • the mask transfer unit 235 for transferring the mask 10 is shown to include a loading unit 236 and an unloading unit 238 having a pickup function, but the mask transfer unit 235 is A single device having a pickup function may be changed to a structure capable of performing a loading operation and an unloading operation.
  • the lighting unit 115 is shown to include a mounting part 117 that can support one mask body 11 , but the lighting unit 115 includes a plurality of mask bodies 11 . It can be changed to a structure that can support it.
  • one vision unit 125 captures a plurality of mask bodies 11 and acquires a photographed image of each of the plurality of mask bodies 11 , but a plurality of vision units each have a single mask. It may be installed to photograph only the body.

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  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Textile Engineering (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

Un dispositif d'inspection de masque selon la présente invention comprend : une table ; une unité d'éclairage installée au-dessus de la table, l'unité d'éclairage comprenant une partie de montage transmettant la lumière sur laquelle un corps de masque peut être placé et une lampe qui est installée sous la partie de montage et émet de la lumière vers la partie de montage ; une unité de vision qui acquiert une image capturée en capturant une image du corps de masque de manière à permettre de vérifier si des substances étrangères sont présentes ou non sur le corps de masque placé sur la partie de montage ; et une unité d'inspection de bande qui comprend une première barre mobile installée dans la table de manière à pouvoir se déplacer dans une direction s'éloignant ou se rapprochant de la partie de montage afin d'appliquer une tension à une bande, fixée à un côté du corps de masque, en tirant la bande dans une direction s' éloignant du corps de masque, une seconde barre mobile installée dans la table de manière à pouvoir se déplacer dans une direction s'éloignant ou se rapprochant de la partie de montage afin d'appliquer une tension à une bande, fixée à un autre côté du corps de masque, en tirant la bande dans une direction s'éloignant du corps de masque, et une partie d'entraînement qui fournit une force motrice à chacune de la première barre mobile et de la seconde barre mobile.
PCT/KR2021/011000 2020-08-21 2021-08-19 Dispositif d'inspection de masque WO2022039511A1 (fr)

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KR102277737B1 (ko) * 2020-08-21 2021-07-14 한동희 마스크 검사장치
KR102391095B1 (ko) * 2021-07-27 2022-04-27 하상수 마스크 제조 설비
KR102672775B1 (ko) * 2021-12-29 2024-06-07 김연진 마스크 제조용 마스크끈의 검사 및 포밍 장치

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KR19980015296U (ko) * 1996-09-05 1998-06-25 권갑일 브라운관 고정용 밴드 검사장치
KR100726982B1 (ko) * 2005-03-08 2007-06-14 대경테크 주식회사 인장시험기용 신장계 측정장치
CN106093059A (zh) * 2016-08-16 2016-11-09 杭州赤霄科技有限公司 卫生医疗防护用品口罩视觉检测系统
CN209264585U (zh) * 2018-11-20 2019-08-16 深圳市维图视技术有限公司 一种口罩在线检测系统
CN210665303U (zh) * 2019-08-29 2020-06-02 大连善德来生活用品有限公司 口罩耳绳焊接点拉力测试机
KR102277737B1 (ko) * 2020-08-21 2021-07-14 한동희 마스크 검사장치

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KR102481525B1 (ko) 2017-04-19 2022-12-26 주식회사 엘지생활건강 마스크 제조 장치 및 제조 방법

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KR19980015296U (ko) * 1996-09-05 1998-06-25 권갑일 브라운관 고정용 밴드 검사장치
KR100726982B1 (ko) * 2005-03-08 2007-06-14 대경테크 주식회사 인장시험기용 신장계 측정장치
CN106093059A (zh) * 2016-08-16 2016-11-09 杭州赤霄科技有限公司 卫生医疗防护用品口罩视觉检测系统
CN209264585U (zh) * 2018-11-20 2019-08-16 深圳市维图视技术有限公司 一种口罩在线检测系统
CN210665303U (zh) * 2019-08-29 2020-06-02 大连善德来生活用品有限公司 口罩耳绳焊接点拉力测试机
KR102277737B1 (ko) * 2020-08-21 2021-07-14 한동희 마스크 검사장치

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