WO2022039511A1 - Mask inspection device - Google Patents

Mask inspection device 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
Authority
WO
WIPO (PCT)
Prior art keywords
mask
unit
band
movable bar
inspection
Prior art date
Application number
PCT/KR2021/011000
Other languages
French (fr)
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/en

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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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Abstract

A mask inspection device according to the present invention comprises: a table; a lighting unit installed above the table, the lighting unit including a light transmissive mounting part on which a mask body can be placed and a lamp which is installed below the mounting part and emits light toward the mounting part; a vision unit which acquires a captured image by capturing an image of the mask body so as to make it possible to check whether or not foreign substances are present on the mask body placed on the mounting part; and a band inspection unit which includes a first moving bar installed in the table so as to be able to move in a direction away from or toward the mounting part in order to apply tension to a band, attached to one side of the mask body, by pulling the band in a direction away from the mask body, a second moving bar installed in the table so as to be able to move in a direction away from or toward the mounting part in order to apply tension to a band, attached to another side of the mask body, by pulling the band in a direction away from the mask body, and a driving part which provides motive force to each of the first moving bar and the second moving bar.

Description

마스크 검사장치mask inspection device
본 발명은 마스크 검사장치에 관한 것으로서, 보다 상세하게는 마스크 본체의 양측으로 밴드가 부착된 마스크에 대한 위생 상태 및 밴드 부착 상태를 검사할 수 있는 마스크 검사장치에 관한 것이다.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.
마스크는 병균이나 먼지 등의 흡입 및 비산을 막기 위하여 코와 입을 가리는데 사용된다. 특히, 마스크는 외부로부터의 먼지를 포함하는 미세 이물질이 입과 코를 통해 신체의 내부로 유입되는 것을 방지하여 호흡기 질병을 예방하기 위한 목적으로 대중적으로 사용되고 있다.Masks are used to cover the nose and mouth to prevent inhalation and scattering of germs or dust. In particular, 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.
최근, 미세먼지의 증가 등으로 인한 호흡기 질환 환자가 증가하고, 각종 바이러스성 질환이 빈번하게 유행함에 따라 마스크의 수요도 급격하게 증가하고 있는 추세이다.Recently, as the number of patients with respiratory diseases increases due to an increase in fine dust, etc., and various viral diseases are frequently prevalent, the demand for masks is also rapidly increasing.
마스크는 거즈 또는 부직포 등의 섬유재질로 된 시트 형태의 마스크 본체를 만들고, 마스크 본체의 양측에 각각 밴드를 부착하여 코와 입과 턱 주변을 감싸는 형태로 제작된다.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.
마스크는 자동화된 마스크 제조설비를 통해 제조된다. 일반적으로, 마스크 제조설비는 마스크 본체를 만들기 위한 마스크 원단을 공급하는 원단 공급장치와, 마스크 원단을 합지 및 성형하여 마스크 본체를 만드는 마스크 성형장치와, 마스크 본체에 밴드를 부착하는 밴드 부착장치를 포함한다.Masks are manufactured through automated mask manufacturing facilities. In general, 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.
마스크의 자동화 생산에 있어서 마스크 본체에 밴드를 부착하여 마스크를 제조한 후, 마스크를 포장하기 전에 마스크의 불량 여부를 검사하는 검사 과정이 필요하다. 즉, 제조된 마스크는 포장 전에 위생 상태와 밴드 부착 상태에 대한 검사 과정을 거치게 된다. 위생 상태 검사에서는 곰팡이나, 이물질 등이 오염물이 마스크에 존재하는지 여부를 확인하게 된다. 그리고 밴드 부착 상태 검사에서는 밴드가 마스크 본체에 견고하게 부착되어 있는지 여부를 확인하게 된다. 검사 과정에서 양품과 불량품이 선별되며, 불량품은 폐기된다.In the automated production of masks, after manufacturing a mask by attaching a band to the mask body, 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.
현재, 다양한 장치를 이용하여 마스크 검사가 수행되고 있기는 하지만, 마스크 검사의 정밀도 및 효율성이 떨어지고 검사 시간이 많이 소요되는 문제점이 있어, 이를 개선할 수 있는 검사장치의 필요성이 증대되고 있다.Currently, although mask inspection is performed using various apparatuses, there is a problem in that the precision and efficiency of the mask inspection are low and the inspection time is long, so the need for an inspection apparatus capable of improving the mask inspection is increasing.
본 발명은 상술한 바와 같은 점을 감안하여 안출된 것으로서, 마스크 검사의 정밀도 및 효율성을 높이고, 마스크 검사 시간을 단축할 수 있는 마스크 검사장치를 제공하는 것을 목적으로 한다.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.
본 발명의 목적은 상술한 것에 한정되지 않으며, 언급되지 아니한 다른 목적들은 아래의 기재로부터 통상의 기술자에게 명확하게 이해될 수 있을 것이다.Objects of the present invention are not limited to those described above, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.
상술한 바와 같은 목적을 달성하기 위한 본 발명에 따른 마스크 검사장치는, 테이블; 상기 테이블 위에 설치되고, 마스크 본체가 놓일 수 있는 광투과성의 장착부와, 상기 장착부의 하측에 설치되어 상기 장착부 측으로 빛을 조사하는 램프를 구비하는 조명유닛; 상기 장착부 위에 놓이는 마스크 본체에서 이물질의 존재 여부를 확인할 수 있도록 마스크 본체를 촬영하여 촬영 이미지를 획득하는 비전유닛; 및 마스크 본체의 일측에 부착된 밴드를 마스크 본체로부터 멀어지는 방향으로 당겨 밴드에 텐션력을 가하기 위해 상기 장착부에서 멀어지거나 상기 장착부에 가까워지는 방향으로 이동할 수 있도록 상기 테이블에 설치되는 제1 가동바와, 마스크 본체의 다른 일측에 부착된 밴드를 마스크 본체로부터 멀어지는 방향으로 당겨 밴드에 텐션력을 가하기 위해 상기 장착부에서 멀어지거나 상기 장착부에 가까워지는 방향으로 이동할 수 있도록 상기 테이블에 설치되는 제2 가동바와, 상기 제1 가동바 및 상기 제2 가동바에 각각 이동력을 제공하는 구동부를 구비하는 밴드 검사유닛;을 포함한다.A mask inspection apparatus according to the present invention 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 bar.
상기 밴드 검사유닛은, 상기 제1 가동바와 상기 제2 가동바 중 적어도 어느 하나의 움직임을 감지하여 감지 신호를 발생할 수 있도록 상기 테이블에 설치되는 센서를 포함할 수 있다.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.
상기 구동부는 상기 제1 가동바 및 상기 제2 가동바에 각각 사전 설정된 이동 거리만큼 이동할 수 있는 이동력을 제공하되, 상기 제1 가동바는 밴드가 걸린 상태에서 밴드에 의해 구속되어 그 이동 거리가 사전 설정된 검사 거리 이하로 제한되고, 상기 제2 가동바는 밴드가 걸린 상태에서 밴드에 의해 구속되어 그 이동 거리가 상기 검사 거리 이하로 제한되며, 상기 센서는 상기 제1 가동바 또는 상기 제2 가동바가 밴드를 마스크 본체에서 이탈시켜 밴드의 구속력을 풀고 상기 검사 거리를 벗어날 때 감지 신호를 발생할 수 있다.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.
상기 센서는 상기 검사 거리를 벗어나도록 이동한 상기 제1 가동바 또는 상기 제2 가동바가 접촉할 수 있는 위치에 설치될 수 있다.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.
본 발명에 따른 마스크 검사장치는, 마스크 본체의 가장자리에 접하여 상기 장착부 상에서 마스크 본체의 이동을 제한하기 위해 상기 장착부로부터 돌출되도록 설치되는 복수의 고정부재;를 더 포함할 수 있다.The mask inspection apparatus according to the present invention 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.
본 발명에 따른 마스크 검사장치는, 양품으로 판별된 마스크가 놓일 수 있는 양품 배출부; 불량품으로 판별된 마스크를 수거하기 위한 불량품 수거부; 및 검사가 완료된 마스크를 상기 장착부에서 상기 양품 배출부 또는 상기 불량품 수거부로 운반하는 마스크 이송유닛;을 더 포함할 수 있다.A mask inspection apparatus according to the present invention 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.
상기 테이블에는 상기 제1 가동바 및 상기 제2 가동바가 삽입되는 복수의 테이블홈이 구비되되, 상기 제1 가동바 및 상기 제2 가동바는 각각의 끝단이 상기 테이블의 상면으로부터 돌출되고, 상기 구동부는 상기 테이블의 상면보다 낮게 설치될 수 있다.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.
본 발명에 따른 마스크 검사장치는, 상기 테이블을 일정 각도씩 간헐 회전시키는 회전 구동기;를 더 포함하고, 상기 조명유닛과 상기 밴드 검사유닛은 각각 복수 개가 상기 테이블 상에 일정한 각도 간격으로 이격 배치될 수 있다.The mask inspection apparatus according to the present invention 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.
상기 테이블의 회전 경로 중에는 상기 조명유닛 및 상기 밴드 검사유닛이 정지하는 복수의 작업 존이 배치되되, 상기 복수의 작업 존 중 어느 하나에 상기 비전유닛이 설치될 수 있다.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.
상기 밴드 검사유닛은 상기 복수의 작업 존 중에서 상기 비전유닛이 설치되지 않은 다른 작업 존에서 작동하도록 제어될 수 있다.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.
상술한 바와 같은 본 발명에 따른 마스크 검사장치는 마스크를 조명할 수 있는 조명유닛 위에 마스크를 올려놓고 비전유닛으로 마스크를 촬영하여 마스크에 대한 위생 상태 검사를 자동으로 수행할 수 있다. 그리고 조명유닛 위에 놓인 마스크의 밴드를 마스크 본체로부터 멀어지는 방향으로 당겨 밴드에 텐션력을 가함으로써 마스크에 대한 밴드 부착 상태 검사를 자동으로 수행할 수 있다. As described above, the mask inspection apparatus according to the present invention 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.
따라서 마스크 검사의 정밀도 및 효율성을 높이고, 마스크 검사 시간을 단축할 수 있는 효과가 있다.Therefore, it is possible to increase the precision and efficiency of the mask inspection and to shorten the mask inspection time.
본 발명의 효과는 상술한 것에 한정되지 않으며, 언급되지 아니한 다른 효과들은 아래의 기재로부터 통상의 기술자에게 명확하게 이해될 수 있을 것이다.Effects of the present invention are not limited to those described above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.
도 1은 본 발명의 일실시예에 따른 마스크 검사장치를 나타낸 평면도이다.1 is a plan view showing a mask inspection apparatus according to an embodiment of the present invention.
도 2는 본 발명의 일실시예에 따른 마스크 검사장치의 일부 구성을 나타낸 사시도이다.2 is a perspective view showing a partial configuration of a mask inspection apparatus according to an embodiment of the present invention.
도 3은 본 발명의 일실시예에 따른 마스크 검사장치의 일부 구성을 나타낸 측면도이다.3 is a side view illustrating a partial configuration of a mask inspection apparatus according to an embodiment of the present invention.
도 4는 본 발명의 일실시예에 따른 마스크 검사장치의 일부 구성을 나타낸 평면도이다.4 is a plan view illustrating a partial configuration of a mask inspection apparatus according to an embodiment of the present invention.
도 5 내지 도 7은 본 발명의 일실시예에 따른 마스크 검사장치에 구비되는 밴드 검사유닛의 작용을 설명하기 위한 것이다.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.
도 8은 본 발명의 일실시예에 따른 마스크 검사장치의 작용을 설명하기 위한 것이다.8 is for explaining the operation of the mask inspection apparatus according to an embodiment of the present invention.
도 9는 본 발명의 다른 실시예에 따른 마스크 검사장치를 나타낸 평면도이다.9 is a plan view showing a mask inspection apparatus according to another embodiment of the present invention.
도 10은 본 발명의 다른 실시예에 따른 마스크 검사장치의 일부 구성을 나타낸 평면도이다.10 is a plan view illustrating a partial configuration of a mask inspection apparatus according to another embodiment of the present invention.
도 11은 본 발명의 다른 실시예에 따른 마스크 검사장치의 일부 구성을 나타낸 측면도이다.11 is a side view illustrating a partial configuration of a mask inspection apparatus according to another embodiment of the present invention.
도 12는 본 발명의 다른 실시예에 따른 마스크 검사장치의 작용을 설명하기 위한 것이다.12 is for explaining the operation of the mask inspection apparatus according to another embodiment of the present invention.
<주요 부분에 대한 도면의 설명><Description of drawings for main parts>
100 : 마스크 검사장치 110, 210 : 테이블100: mask inspection device 110, 210: table
111 : 테이블홈 112 : 가이드부111: table groove 112: guide part
115 : 조명유닛 117 : 장착부115: lighting unit 117: mounting part
118 : 램프 120 : 고정부재118: lamp 120: fixing member
125 : 비전유닛 130 : 밴드 검사유닛125: vision unit 130: band inspection unit
131 : 제1 푸셔 132 : 제1 가동바131: first pusher 132: first movable bar
133 : 제1 연결부 135 : 제2 푸셔133: first connection 135: second pusher
136 : 제2 가동바 137 : 제2 연결부136: second movable bar 137: second connection part
139 : 구동부 140 : 제1 액츄에이터139: driving unit 140: first actuator
141 : 제2 액츄에이터 143, 144 : 센서141: second actuator 143, 144: sensor
150, 220 : 마스크 공급부 155, 225 : 양품 배출부150, 220: mask supply part 155, 225: good product discharge part
160, 230 : 불량품 수거부 165, 235 : 마스크 이송유닛160, 230: defective product collection unit 165, 235: mask transfer unit
170, 240 : 제어부 215 : 회전 구동기170, 240: control unit 215: rotation actuator
236 : 로딩 유닛 238 : 언로딩 유닛236: loading unit 238: unloading unit
이하, 첨부한 도면을 참고로 하여 본 발명의 실시예들에 대하여 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세히 설명한다. 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예들에 한정되지 않는다.Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. The present invention may be embodied in several different forms and is not limited to the embodiments described herein.
본 발명을 설명함에 있어서, 도면에 도시된 구성요소의 크기나 형상 등은 설명의 명료성과 편의를 위해 과장되거나 단순화되어 나타날 수 있다. In describing the present invention, the size or shape of the components shown in the drawings may be exaggerated or simplified for clarity and convenience of explanation.
또한, 본 발명의 구성 및 작용을 고려하여 특별히 정의된 용어들은 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 이러한 용어들은 본 명세서 전반에 걸친 내용을 토대로 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야 한다.In addition, terms specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. These terms should be interpreted as meanings and concepts consistent with the technical spirit of the present invention based on the contents throughout this specification.
본 발명을 명확하게 설명하기 위하여 본 발명의 기술적 사상과 관계없는 부분의 설명은 생략하였으며, 명세서 전체를 통하여 동일 또는 유사한 구성요소에 대해서는 동일한 참조 부호를 붙이도록 한다In order to clearly explain the present invention, the description of parts not related to the technical idea of the present invention is omitted, and the same reference numerals are given to the same or similar elements throughout the specification.
또한, 여러 실시예들에 있어서, 동일한 구성을 가지는 구성요소에 대해서는 동일한 부호를 사용하여 대표적인 실시예에서만 설명하고, 그 외의 다른 실시예에서는 대표적인 실시예와 다른 구성에 대해서만 설명하기로 한다.In addition, in various embodiments, components having the same configuration will be described using the same reference numerals only in the representative embodiment, and only configurations different from the representative embodiment will be described in other embodiments.
명세서 전체에서, 어떤 부분이 다른 부분과 "연결"되어 있다고 할 때, 이는 "직접적으로 연결"되어 있는 경우뿐만 아니라, 다른 부재를 사이에 두고 "간접적으로 연결"된 것도 포함한다. 또한, 어떤 부분이 어떤 구성요소를 "포함"한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함하는 것을 의미할 수 있다.Throughout the specification, when a part is "connected" to another part, it includes not only the case where it is "directly connected" but also the case where it is "indirectly connected" with another member interposed therebetween. In addition, when a part "includes" a certain component, this may mean further including other components rather than excluding other components unless otherwise stated.
도면에 나타낸 것과 같이, 본 발명의 일실시예에 따른 마스크 검사장치(100)는 테이블(110)과, 테이블(110) 위에 설치되는 복수의 조명유닛(115)과, 조명유닛(115) 위에 놓이는 마스크(10)를 이미지 검사하기 위한 비전유닛(125)과, 마스크(10)의 밴드 부착 상태를 검사하기 위한 복수의 밴드 검사유닛(130)과, 검사 대상 마스크(10)를 공급하기 위한 마스크 공급부(150)와, 양품 마스크를 배출하기 위한 양품 배출부(155)와, 불량 마스크를 수거하기 위한 불량품 수거부(160)와, 마스크(10)를 운반하기 위한 마스크 이송유닛(165)과, 마스크 검사장치(100)의 전반적인 동작을 제어하는 제어부(170)를 포함한다.As shown in the drawing, the mask inspection apparatus 100 according to an embodiment of the present invention 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 .
본 발명의 일실시예에 따른 마스크 검사장치(100)는 마스크 본체(11)의 양측에 밴드(12)가 부착된 마스크(10)에 대한 위생 상태 검사와 밴드 부착 상태 검사를 수행하게 된다. 위생 상태 검사에서는 비전유닛(125)으로 마스크(10)를 촬영하여 곰팡이나, 이물질 등의 오염물이 마스크(10)에 존재하는지 여부를 확인하게 된다. 밴드 부착 상태 검사에서는 밴드 검사유닛(130)으로 밴드(12)가 마스크 본체(11)에 안정적으로 부착되어 있는지 여부를 확인하게 된다.The mask inspection apparatus 100 according to an embodiment of the present invention 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 . In the hygiene inspection, 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 . In 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 .
테이블(110)은 복수의 조명유닛(115) 및 복수의 밴드 검사유닛(130)을 지지한다. 테이블(110)에는 복수의 테이블홈(111)이 마련된다. 테이블홈(111)은 복수의 조명유닛(115) 각각의 좌우 양측에 하나씩 배치된다. 각각의 테이블홈(111)에는 밴드 검사유닛(130)의 제1 가동바(132) 또는 제2 가동바(136)가 삽입된다. 각 테이블홈(111)의 안쪽에는 가이드부(112)가 구비된다. 가이드부(112)는 제1 가동바(132) 또는 제2 가동바(136)를 선형 이동하도록 가이드한다.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.
복수의 조명유닛(115)은 테이블(110) 위에 일정한 간격으로 이격 배치된다. 조명유닛(115)은 하우징(116)과, 하우징(116)의 내측에 설치되는 램프(118)를 포함한다. 하우징(116)에는 마스크(10)의 마스크 본체(11)가 놓이는 장착부(117)가 구비된다. 장착부(117)는 램프(118)에서 발생하는 빛이 투과할 수 있도록 광투과성을 갖는다. 장착부(117)는 투명 또는 반투명한 소재로 이루어질 수 있다. 장착부(117)는 하나의 마스크 본체(11)를 떠받칠 수 있는 넓이로 이루어질 수 있다. 램프(118)는 하우징(116)의 내측에 설치되어 장착부(117) 측으로 빛을 조사한다. 램프(118)로는 LED 등 빛을 발생할 수 있는 다양한 것이 이용될 수 있다.A plurality of lighting units 115 are spaced apart from each other at regular intervals on the table 110 . 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.
조명유닛(115)의 둘레로는 복수의 고정부재(120)가 배치된다. 고정부재(120)는 장착부(117)로부터 돌출되도록 테이블(110)에 설치된다. 복수의 고정부재(120)는 장착부(117)에 놓이는 마스크 본체(11)의 가장자리에 접함으로써 장착부(117) 상에서 마스크 본체(11)의 이동을 제한하고, 마스크 본체(11)를 장착부(117)에 안정적으로 위치시킨다.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
고정부재(120)의 구체적인 형상이나, 개수, 배치 구조 등은 도시된 것으로 한정되지 않고 다양하게 변경될 수 있다.The specific shape, number, arrangement, and the like of the fixing member 120 are not limited to those shown and may be variously changed.
비전유닛(125)은 조명유닛(115) 위에 놓이는 마스크 본체(11)를 촬영할 수 있도록 테이블(110) 위에 설치된다. 비전유닛(125)은 조명유닛(115)에 의해 조명되고 있는 마스크 본체(11)를 촬영함으로써 마스크 본체(11)에 대한 촬영 이미지를 획득할 수 있다.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 .
비전유닛(125)에 의해 획득되는 촬영 이미지는 제어부(170)에 제공될 수 있다. 제어부(170)는 비전유닛(125)이 획득한 촬영 이미지를 사전 설정된 기준 이미지와 비교하여 마스크 본체(11)의 오염 여부를 판단할 수 있다. 여기에서, 기준 이미지는 곰팡이나, 이물질 등이 오염물로 오염되지 않은 청결한 마스크 본체를 촬영한 이미지일 수 있다. 곰팡이나, 이물질 등의 오염물이 존재하는 마스크 본체로부터 획득되는 촬영 이미지에는 오염물로 인한 점이나 얼룩이 나타날 수 있다. 따라서 제어부(170)는 기준 이미지와 달리 점이나 얼룩이 나타낸 촬영 이미지를 갖는 마스크 본체를 불량으로 판단할 수 있다.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. Here, 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.
복수의 밴드 검사유닛(130)은 복수의 조명유닛(115)에 대응하도록 테이블(110)에 설치된다. 밴드 검사유닛(130)은 마스크 본체(11)의 일측에 부착된 밴드(12)에 텐션력을 가하기 위한 제1 푸셔(131)와, 마스크 본체(11)의 다른 일측에 부착된 밴드(12)에 텐션력을 가하기 위한 제2 푸셔(135)와, 제1 푸셔(131) 및 제2 푸셔(135)에 이동력을 제공하기 위한 구동부(139)와, 제1 푸셔(131) 및 제2 푸셔(135)에 대응하여 조명유닛(115)으로부터 각각 일정 거리 이격되어 설치되는 한 쌍의 센서(143)(144)를 포함한다. 도면을 기준으로 하나의 센서(143)는 조명유닛(115)으로부터 우측 방향으로 일정 거리 이격되어 배치되고, 다른 하나의 센서(144)는 조명유닛(115)으로부터 좌측 방향으로 일정 거리 이격되어 배치된다.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 second pusher 135 for applying a tension force, a driving unit 139 for providing a moving force to the first pusher 131 and the second pusher 135 , the first pusher 131 and the second pusher 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). Based on the drawing, one sensor 143 is disposed to be spaced apart from the lighting unit 115 by a certain distance in the right direction, and the other sensor 144 is disposed to be spaced apart from the lighting unit 115 by a certain distance in the left direction. .
제1 푸셔(131)는 마스크 본체(11)의 일측에 부착된 밴드(12)에 접할 수 있도록 테이블(110)에 이동 가능하게 설치되는 제1 가동바(132)와, 제1 가동바(132)와 구동부(139)를 연결하는 제1 연결부(133)를 포함한다.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 .
제1 가동바(132)는 도 3을 기준으로 조명유닛(115)의 우측에 마련되는 테이블홈(111) 속에 삽입되어 테이블홈(111)을 따라 선형 이동할 수 있다. 즉, 제1 가동바(132)는 테이블홈(111)을 따라 선형 이동함으로써 조명유닛(115)의 장착부(117)에서 멀어지거나 장착부(117)에 가까워질 수 있다. 제1 가동바(132)에 밴드(12)가 걸린 상태에서 제1 가동바(132)가 장착부(117)에서 멀어지는 방향으로 이동하면 밴드(12)가 마스크 본체(11)로부터 멀어지는 방향으로 당겨지게 된다. 이때, 탄성력을 갖는 밴드(12)가 늘어나면서 밴드(12)에 텐션력이 가해진다.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 . When 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.
제1 가동바(132)는 부분적으로 테이블홈(111)에 삽입되어 테이블(110)을 두께 방향으로 관통한다. 제1 가동바(132)는 테이블(110)의 상면으로부터 고정부재(120)보다 높게 돌출된다. 제1 가동바(132)는 테이블홈(111) 속에 구비되는 가이드부(112)에 의해 선형 이동하도록 지지된다. 제1 가동바(132)는 밴드(12)에 접촉 시 밴드(12)를 손상시키지 않도록 밴드(12)와 접하는 부분이 곡면으로 이루어지는 것이 좋다. 도면에는 제1 가동바(132) 중 테이블(110)의 상면으로부터 돌출되는 부분이 원기둥 형상으로 이루어진 것으로 나타냈으나, 제1 가동바(132)의 형상은 다양하게 변경될 수 있다.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 . Although it is shown in the drawings that a portion of the first movable bar 132 protruding from the upper surface of the table 110 has a cylindrical shape, the shape of the first movable bar 132 may be variously changed.
제1 연결부(133)는 제1 가동바(132)와 구동부(139)를 연결하여 구동부(139)의 이동력을 제1 가동바(132)에 전달한다. 제1 연결부(133)는 도시된 구조 이외에 구동부(139)와 제1 가동바(132)를 연결하는 다양한 다른 구조로 이루어질 수 있다.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.
제2 푸셔(135)는 마스크 본체(11)의 다른 일측에 부착된 밴드(12)에 접할 수 있도록 테이블(110)에 이동 가능하게 설치되는 제2 가동바(136)와, 제2 가동바(136)와 구동부(139)를 연결하는 제2 연결부(137)를 포함한다.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 .
제2 가동바(136)는 도 3을 기준으로 조명유닛(115)의 좌측에 마련되는 테이블홈(111) 속에 삽입되어 테이블홈(111)을 따라 선형 이동할 수 있다. 즉, 제2 가동바(136)는 테이블홈(111)을 따라 선형 이동함으로써 조명유닛(115)의 장착부(117)에서 멀어지거나 장착부(117)에 가까워질 수 있다. 제2 가동바(136)에 밴드(12)가 걸린 상태에서 제2 가동바(136)가 장착부(117)에서 멀어지는 방향으로 이동하면 밴드(12)가 마스크 본체(11)로부터 멀어지는 방향으로 당겨지게 된다. 이때, 탄성력을 갖는 밴드(12)가 늘어나면서 밴드(12)에 텐션력이 가해진다.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 . When 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.
제2 가동바(136)는 부분적으로 테이블홈(111)에 삽입되어 테이블(110)을 두께 방향으로 관통한다. 제2 가동바(136)는 제1 가동바(132)와 마찬가지로 테이블(110)의 상면으로부터 고정부재(120)보다 높게 돌출된다. 제2 가동바(136)는 테이블홈(111) 속에 구비되는 가이드부(112)에 의해 선형 이동하도록 지지된다. 제2 가동바(136)는 제1 가동바(132)와 같은 구조로 이루어질 수 있으며, 그 형상은 다양하게 변경될 수 있다.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.
제2 연결부(137)는 제2 가동바(136)와 구동부(139)를 연결하여 구동부(139)의 이동력을 제2 가동바(136)에 전달한다. 제2 연결부(137)는 도시된 구조 이외에 구동부(139)와 제2 가동바(136)를 연결하는 다양한 다른 구조로 이루어질 수 있다.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.
구동부(139)는 제1 푸셔(131) 및 제2 푸셔(135)에 동일한 이동력을 제공할 수 있도록 테이블(110)에 설치된다. 구동부(139)는 테이블(110) 위에 놓이는 마스크(10)와 간섭되지 않도록 테이블(110)의 상면보다 낮게 배치되는 것이 좋다. 구동부(139)는 제1 푸셔(131)에 이동력을 제공하기 위한 제1 액츄에이터(140)와, 제2 푸셔(135)에 이동력을 제공하기 위한 제2 액츄에이터(141)를 포함한다. 제1 액츄에이터(140)는 제1 연결부(133)와 연결되고, 제2 액츄에이터(141)는 제2 연결부(137)와 연결된다.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 , and the second actuator 141 is connected to the second connection part 137 .
제1 액츄에이터(140)는 제1 가동바(132)에 이동력을 제공하여 제1 가동바(132)를 장착부(117)에 인접한 초기 위치에서 장착부(117)로부터 일정 거리 이격된 위치까지 이동시킬 수 있다. 제1 액츄에이터(140)가 제1 가동바(132)를 장착부(117)로부터 멀어지는 방향으로 가압할 때 제1 가동바(132)는 사전 설정된 이동 거리만큼 이동할 수 있다. 여기에서, 사전 설정된 이동 거리는 제1 가동바(132)가 장착부(117)에 인접한 초기 위치에서 하나의 센서(143)에 접촉하는 위치까지로 설정될 수 있다. 즉, 제1 가동바(132)는 다른 외력이 없는 경우 제1 액츄에이터(140)에 의해 센서(143)에 접촉하는 위치까지 이동할 수 있다.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. can When 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. Here, 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 .
제2 액츄에이터(141)는 제1 액츄에이터(140)가 제1 가동바(132)를 이동시키는 이동력과 같은 이동력을 제2 가동바(136)에 제공한다. 즉, 제2 액츄에이터(141)는 제2 가동바(136)에 이동력을 제공하여 제2 가동바(136)를 장착부(117)에 인접한 초기 위치에서 장착부(117)로부터 일정 거리 이격된 위치까지 이동시킬 수 있다. 제2 액츄에이터(141)가 제2 가동바(136)를 장착부(117)로부터 멀어지는 방향으로 가압할 때 제2 가동바(136)는 사전 설정된 이동 거리만큼 이동할 수 있다. 여기에서, 사전 설정된 이동 거리는 제2 가동바(136)가 장착부(117)에 인접한 초기 위치에서 다른 하나의 센서(144)에 접촉하는 위치까지로 설정될 수 있다. 즉, 제2 가동바(136)는 다른 외력이 없는 경우 제2 액츄에이터(141)에 의해 센서(144)에 접촉하는 위치까지 이동할 수 있다.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. Here, 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.
제1 액츄에이터(140)나 제2 액츄에이터(141)는 제1 가동바(132) 및 제2 가동바(136)를 각각 사전 설정된 이동 거리만큼 이동시키는 이동력을 제공할 수 있는 다양한 구조를 취할 수 있다. 또한, 구동부(139)는 제1 액츄에이터(140)와 제2 액츄에이터(141)를 포함하는 구조 이외에, 제1 가동바(132) 및 제2 가동바(136)를 탄력적으로 가압하는 구조 등 이동력을 제공할 수 있는 다양한 다른 구조로 변경될 수 있다.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. In addition, 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
한 쌍의 센서(143)(144)는 조명유닛(115)의 좌우 양측으로부터 각각 동일한 거리만큼 이격되어 제1 가동바(132) 및 제2 가동바(136)가 각각 접촉할 수 있는 위치에 설치된다. 제1 가동바(132)는 다른 외력이 가해지지 않는 경우 구동부(139)의 이동력에 의해 하나의 센서(143)에 접촉하는 위치까지 이동할 수 있다. 제2 가동바(136) 역시 다른 외력이 가해지지 않는 경우 구동부(139)의 이동력에 의해 제1 가동바(132)의 이동 거리와 같은 이동 거리만큼 이동하여 다른 하나의 센서(144)에 접촉할 수 있다.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.
그런데 제1 가동바(132) 및 제2 가동바(136)에 각각 밴드(12)가 걸린 상태에서 제1 가동바(132) 및 제2 가동바(136)에 이동력이 제공되는 경우, 제1 가동바(132) 및 제2 가동바(136)는 밴드(12)에 의해 그 움직임이 구속된다. 즉, 제1 가동바(132) 및 제2 가동바(136)는 밴드(12)에 의해 각각의 이동력의 반대 방향으로 반력을 받게 된다. 따라서 제1 가동바(132)와 제2 가동바(136)는 각각의 이동 거리가 사전 설정된 이동 거리보다 짧게 나타난다. 구체적으로, 도 6의 (b)에 나타낸 것과 같이, 밴드(12)가 걸린 상태에서 제1 가동바(132) 및 제2 가동바(136)의 이동 거리는 각각 사전 설정된 검사 거리(Dt) 이하로 제한된다. 여기에서, 검사 거리(Dt)는 제1 가동바(132) 및 제2 가동바(136)에 의해 밴드(12)에 사전 설정된 기준 텐션력이 가해질 때 제1 가동바(132) 및 제2 가동바(136)가 초기 위치로부터 이격될 수 있는 거리이다.However, 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. 6 (b), in the state in which the band 12 is caught, 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. Here, 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.
기준 텐션력은 밴드(12)의 부착 상태를 정상 또는 불량으로 구분하기 위한 적절한 크기로 설정될 수 있다. 밴드(12)에 기준 텐션력이 가해질 때 밴드(12)가 마스크 본체(11)에서 분리되거나 끊어지지 않고 마스크 본체(11)와 연결된 상태를 유지하는 경우 해당 마스크(10)는 양품으로 판별될 수 있다. 반면, 밴드(12)에 기준 텐션력이 가해질 때 밴드(12)가 마스크 본체(11)에서 분리되거나 끊어지면 해당 마스크(10)는 불량품으로 판별될 수 있다.The reference tension force may be set to an appropriate size for classifying the attachment state of the band 12 as normal or bad. When a reference tension force is applied to the band 12, if the band 12 is not separated from or broken from the mask body 11 and remains connected to the mask body 11, the corresponding mask 10 can be determined to be a good product. there is. On the other hand, if the band 12 is separated from or cut off from the mask body 11 when a reference tension force is applied to the band 12 , the mask 10 may be determined as a defective product.
밴드(12)가 마스크 본체(11)에서 분리되거나 끊어지는 경우, 밴드(12)에 의한 제1 가동바(132) 및 제2 가동바(136)의 구속력이 해제된다. 이때, 제1 가동바(132) 및 제2 가동바(136)는 구동부(139)로부터 제공받는 이동력에 의해 검사 거리(Dt)를 벗어나 센서(143)(144)에 도달하게 된다. 제1 가동바(132) 및 제2 가동바(136)가 각각 센서(143)(144)에 접촉하면 센서(143)(144)가 감지 신호를 발생하고, 센서(143)(144)에서 발생하는 감지 신호는 제어부(170)로 송신된다. 제어부(170)는 센서(143)(144)로부터 감지 신호를 수신하여 해당 마스크(10)를 불량품으로 판별할 수 있다.When the band 12 is separated or cut off from the mask body 11 , the binding force of the first movable bar 132 and the second movable bar 136 by the band 12 is released. At this time, 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 . When the first movable bar 132 and the second movable bar 136 come into contact with the sensors 143 and 144, respectively, 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.
센서(143)(144)는 앞서 설명한 것과 같이 제1 가동바(132) 또는 제2 가동바(136)가 직접 접촉하여 감지 신호를 발생하는 구조로 한정되지 않는다. 즉, 센서(143)(144)는 제1 가동바(132) 또는 제2 가동바(136)의 움직임을 접촉식 또는 비접촉식으로 감지할 수 있는 다양한 다른 구조를 취할 수 있다.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.
또한, 밴드 검사유닛(130)의 구조는 다양하게 변경될 수 있다. 다른 예로, 밴드 검사유닛(130)은 제1 가동바(132) 또는 제2 가동바(136) 중 어느 하나의 움직임을 감지할 수 있는 하나의 센서를 포함할 수 있다. 또 다른 예로, 밴드 검사유닛(130)에서 제1 가동바(132) 또는 제2 가동바(136)의 움직임을 감지하는 센서가 생략될 수 있다. 이 경우, 밴드 검사유닛(130)은 밴드(12)의 텐션력을 검출하거나, 밴드(12)의 분리 또는 끊어짐을 이미지 분석 등의 다른 방식으로 검출하여 밴드 부착 상태 검사를 수행하는 구조를 취할 수 있다.In addition, the structure of the band inspection unit 130 may be variously changed. As another example, 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 . As another example, 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. In this case, 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.
마스크 공급부(150)는 검사 대상 마스크(10)를 마스크 이송유닛(165)이 픽업할 수 있는 위치로 연속적으로 공급할 수 있다. 마스크 공급부(150)는 복수의 마스크(10)을 일정한 간격으로 피치 이송할 수 있는 컨베이어 구조 등 마스크(10)를 이송할 수 있는 다양한 구조로 이루어질 수 있다.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.
양품 배출부(155)는 양품으로 판별된 마스크(10)를 정해진 위치로 이송한다. 위생 상태 검사 및 밴드 부착 상태 검사 후 양품으로 판별된 마스크(10)가 마스크 이송유닛(165)에 의해 양품 배출부(155)로 운반된다. 양품 배출부(155)는 마스크 이송유닛(165)에 의해 운반되는 마스크(10)를 연속적으로 이송할 수 있는 컨베이어 구조 등 다양한 구조로 이루어질 수 있다.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 .
불량품 수거부(160)는 불량품으로 판별된 마스크(10)를 수거할 수 있도록 설치된다. 위생 상태 검사 및 밴드 부착 상태 검사 후 불량품으로 판별된 마스크(10)가 마스크 이송유닛(165)에 의해 불량품 수거부(160)로 운반된다.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 .
마스크 이송유닛(165)은 마스크 공급부(150)에 의해 공급되는 마스크(10)를 픽업하여 조명유닛(115) 위로 운반하고, 조명유닛(115)에서 검사를 마친 마스크(10)를 양품 배출부(155) 또는 불량품 수거부(160)로 운반한다. 마스크 이송유닛(165)은 마스크(10)를 흡착할 수 있는 흡착부(166)를 갖는다. 도시된 것과 같이, 마스크 이송유닛(165)은 테이블(110) 상에 배치되는 조명유닛(115)의 개수에 대응하는 개수의 흡착부(166)를 포함할 수 있다. 이러한 마스크 이송유닛(165)은 복수의 마스크(10)를 복수의 흡착부(166)로 픽업하여 한꺼번에 운반할 수 있다. 마스크 이송유닛(165)은 복수의 흡착부(166)를 포함하는 구조 이외에 마스크(10)를 픽업하여 운반할 수 있는 다양한 다른 구조로 변경될 수 있다. 또한, 도면에는 하나의 마스크 이송유닛(165)이 마스크(10)를 픽업하여 조명유닛(115) 위로 운반하고, 조명유닛(115)에서 검사를 마친 마스크(10)를 양품 배출부(155) 또는 불량품 수거부(160)로 운반하는 것으로 나타냈으나, 마스크 이송유닛(165)은 마스크(10)를 픽업하여 조명유닛(115) 위로 운반하는 이송유닛과 조명유닛(115)에서 검사를 마친 마스크(10)를 양품 배출부(155) 또는 불량품 수거부(160)로 운반하는 이송유닛의 복수 개가 배치될 수도 있다.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 . As shown, 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 . In addition, in the drawing, 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.
제어부(170)는 조명유닛(115)과, 비전유닛(125)과, 밴드 검사유닛(130)과, 마스크 공급부(150)와, 마스크 이송유닛(165) 등의 동작을 제어한다. 즉, 제어부(170)는 마스크(10)에 대한 위생 상태 검사 및 밴드 부착 상태 검사가 연속적으로 이루어질 수 있도록 마스크 검사장치(100)의 전반적인 동작을 제어한다.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.
이하에서는, 본 발명의 일실시예에 따른 마스크 검사장치(100)의 작용에 대하여 설명한다.Hereinafter, the operation of the mask inspection apparatus 100 according to an embodiment of the present invention will be described.
마스크 공급부(150)가 검사 대상 마스크(10)를 마스크 이송유닛(165)이 픽업할 수 있는 위치로 공급하면 마스크 이송유닛(165)이 마스크 공급부(150)로부터 마스크(10)를 픽업한다. 마스크 이송유닛(165)은 마스크(10)를 운반하여 장착부(117) 위에 마스크 본체(11)를 올려 놓는다. 이때, 도 6의 (a) 및 도 7의 (a)에 나타낸 것과 같이, 마스크 본체(11)는 복수의 고정부재(120)에 의해 둘러싸여 장착부(117) 위에 안정적으로 놓일 수 있다. 그리고 마스크 본체(11)의 우측 가장자리에 부착되어 있는 밴드(12)는 제1 가동바(132)을 둘러싸면서 테이블(110) 위에 놓이고, 마스크 본체(11)의 좌측 가장자리에 부착되어 있는 밴드(12)는 제2 가동바(136)를 둘러싸면서 테이블(110) 위에 놓인다.When the mask supply unit 150 supplies the inspection target mask 10 to a position where the mask transfer unit 165 can pick it up, 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 . At this time, as shown in FIGS. 6 ( a ) and 7 ( a ), the mask body 11 is surrounded by a plurality of fixing members 120 and can be stably placed on the mounting part 117 . And 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 .
마스크 본체(11)가 조명유닛(115) 위에 놓여 조명유닛(115)이 마스크 본체(11)를 조명하는 상태에서 비전유닛(125)이 마스크 본체(11)를 촬영하여 촬영 이미지를 획득한다. 비전유닛(125)에 의해 획득되는 촬영 이미지는 제어부(170)에 제공되고, 제어부(170)는 비전유닛(125)이 획득한 촬영 이미지를 사전 설정된 기준 이미지와 비교하여 마스크 본체(11)의 오염 여부를 판단하게 된다. 제어부(170)는 이러한 위생 상태 검사 결과에 따라 마스크 본체(11)를 양품 또는 불량품으로 선별한다.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.
제어부(170)는 마스크 본체(11)가 장착부(117) 위에 놓인 상태에서 마스크(10)에 대한 밴드 부착 상태 검사가 이루어지도록 밴드 검사유닛(130)을 작동시킨다. 밴드 부착 상태 검사에서 밴드 검사유닛(130)의 구동부(139)가 제1 가동바(132) 및 제2 가동바(136)에 각각 사전 설정된 이동 거리만큼 이동할 수 있는 이동력을 제공한다. 이때, 제1 가동바(132) 및 제2 가동바(136)는 각각 밴드(12)가 걸린 상태로 장착부(117)에서 멀어지는 방향으로 이동하게 된다.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 . In the band attachment state inspection, 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. At this time, 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.
도 6의 (b) 및 도 7의 (b)에 나타낸 것과 같이, 마스크 본체(11)에 한 쌍의 밴드(12)가 정상적인 부착력으로 부착되어 있는 경우, 제1 가동바(132) 및 제2 가동바(136)는 밴드(12)의 텐션력에 의해 그 움직임이 구속된다. 따라서 제1 가동바(132) 및 제2 가동바(136)는 그 이동 거리가 검사 거리(Dt) 이하로 제한되어 센서(143)(144)에 도달하지 못한다. 이와 같이, 제1 가동바(132) 및 제2 가동바(136)가 밴드(12)를 마스크 본체(11)로부터 멀어지는 방향으로 당겨 밴드(12)가 마스크 본체(11)에 연결된 상태를 유지하는 경우, 제어부(170)는 해당 마스크(10)를 양품으로 판별하게 된다.As shown in FIGS. 6 (b) and 7 (b), when a pair of bands 12 are attached to the mask body 11 with normal adhesive force, the first movable bar 132 and the second The movement of the movable bar 136 is restricted by the tension force of the band 12 . Therefore, the first movable bar 132 and the second movable bar 136 do not reach the sensors 143 and 144 because their movement distance is limited to less than the inspection distance Dt. In this way, the first movable bar 132 and the second movable bar 136 pull the band 12 away from the mask body 11 to keep the band 12 connected to the mask body 11 . In this case, the control unit 170 determines that the mask 10 is a good product.
반면, 도 7의 (c)에 나타낸 것과 같이, 한 쌍의 밴드(12) 중 적어도 어느 하나가 마스크 본체(11)로부터 분리되거나 끊어지는 경우, 제1 가동바(132) 또는 제2 가동바(136)에 대한 밴드(12)의 구속력이 해제된다. 이때, 제1 가동바(132) 또는 제2 가동바(136)는 구동부(139)의 이동력에 의해 검사 거리(Dt)를 벗어나 센서(143)(144)에 도달하게 된다. 제1 가동바(132) 또는 제2 가동바(136)가 각각 센서(143)(144)에 접촉하면 센서(143)(144)가 감지 신호를 발생하여 제어부(170)로 송신된다. 제어부(170)는 센서(143)(144)로부터 감지 신호를 수신하면 해당 마스크(10)를 불량품으로 판별하게 된다.On the other hand, when at least one of the pair of bands 12 is separated from or cut off from the mask body 11, as shown in FIG. 7(c), the first movable bar 132 or the second movable bar ( The binding force of the band 12 to 136 is released. At this time, the first movable bar 132 or the second movable bar 136 deviate from the inspection distance Dt by the moving force of the driving unit 139 and reach the sensors 143 and 144 . When the first movable bar 132 or the second movable bar 136 comes into contact with the sensors 143 and 144 , respectively, the sensors 143 and 144 generate a detection signal and are transmitted to the control unit 170 . When 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.
이와 같이, 테이블(110) 상에서 마스크(10)에 대한 위생 상태 검사 및 밴드 부착 상태 검사가 이루어질 때 양품으로 판별된 마스크(10)의 위치 정보와 불량품으로 판별된 마스크(10)의 위치 정보가 제어부(170)에 입력된다. 그리고 검사가 완료되면, 제1 가동바(132) 및 제2 가동바(136)가 초기 위치로 복귀하고 마스크 이송유닛(165)이 작동하여 테이블(110) 위에 배치된 마스크(10)를 판별 결과에 따라 양품 배출부(155)나 불량품 수거부(160)로 운반한다.In this way, when the sanitary condition inspection and the band attachment state inspection for the mask 10 are performed on the table 110, the position information of the mask 10 determined as good and the position information of the mask 10 determined as defective are controlled by the control unit. (170) is input. And when the inspection is completed, 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 .
예를 들어, 도 8에 나타낸 것과 같이, 테이블(110) 상에서 위생 상태 검사 및 밴드 부착 상태 검사를 거친 세 개의 마스크(10) 중에서 가운데 위치하는 마스크(10)가 불량품으로 판별되고 나머지 마스크(10)가 양품으로 판별되는 경우, 마스크 이송유닛(165)은 양품인 두 개의 마스크(10)는 양품 배출부(155)로, 불량품인 하나의 마스크(10)는 불량품 수거부(160)로 운반한다. 즉, 마스크 이송유닛(165)은 도 8의 (a)에 나타낸 것과 같이 세 개의 마스크(10)를 한꺼번에 파지한 후 양품 배출부(155) 위로 이동하여 양품으로 판별된 두 개의 마스크(10)만 양품 배출부(155) 위에 올려 놓는다. 그리고 도 8의 (b)에 나타낸 것과 같이, 불량품으로 판별된 하나의 마스크(10)를 불량품 수거부(160) 위로 운반하여 불량품 수거부(160)에 떨어트린다.For example, as shown in FIG. 8 , 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 When it is determined as a good product, 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). And, as shown in (b) of FIG. 8 , 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 .
상술한 것과 것이 같이, 본 발명의 일실시예에 따른 마스크 검사장치(100)는 마스크(10)를 조명할 수 있는 조명유닛(115) 위에 마스크(10)를 올려놓고 비전유닛(125)으로 마스크(10)를 촬영하여 마스크(10)에 대한 위생 상태 검사를 자동으로 수행할 수 있다. 그리고 조명유닛(115) 위에 놓인 마스크(10)의 밴드(12)를 마스크 본체(11)로부터 멀어지는 방향으로 당겨 밴드(12)에 텐션력을 가함으로써 마스크(10)에 대한 밴드 부착 상태 검사를 자동으로 수행할 수 있다. 따라서 마스크 검사의 정밀도 및 효율성을 높이고, 마스크 검사 시간을 단축할 수 있다.As described above, in the mask inspection apparatus 100 according to an embodiment of the present invention, 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 . By photographing (10), it is possible to automatically perform a sanitary condition inspection on the mask (10). And by pulling the band 12 of the mask 10 placed on the lighting unit 115 in a direction away from the mask body 11 and applying a tension force to the band 12, 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.
한편, 도 9는 본 발명의 다른 실시예에 따른 마스크 검사장치를 나타낸 평면도이고, 도 10은 본 발명의 다른 실시예에 따른 마스크 검사장치의 일부 구성을 나타낸 평면도이며, 도 11은 본 발명의 다른 실시예에 따른 마스크 검사장치의 일부 구성을 나타낸 측면도이다.Meanwhile, 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, and 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.
도면에 나타낸 것과 같이, 본 발명의 다른 실시예에 따른 마스크 검사장치(200)는 테이블(210)과, 테이블(210) 위에 설치되는 복수의 조명유닛(115)과, 조명유닛(115) 위에 놓이는 마스크(10)를 이미지 검사하기 위한 비전유닛(125)과, 마스크(10)의 밴드 부착 상태를 검사하기 위한 복수의 밴드 검사유닛(130)과, 검사 대상 마스크(10)를 공급하기 위한 마스크 공급부(220)와, 양품 마스크를 배출하기 위한 양품 배출부(225)와, 불량 마스크를 수거하기 위한 불량품 수거부(230)와, 마스크(10)를 운반하기 위한 마스크 이송유닛(235)과, 마스크 검사장치(200)의 전반적인 동작을 제어하는 제어부(240)를 포함한다. 조명유닛(115)과, 비전유닛(125)과, 밴드 검사유닛(130)의 구체적인 구조와 작용은 상술한 것과 같다.As shown in the figure, the mask inspection apparatus 200 according to another embodiment of the present invention 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.
테이블(210)은 회전 구동기(215)로부터 회전력을 제공받아 회전한다. 회전 구동기(215)는 제어부(240)에 의해 제어되어 테이블(210)을 일정 각도씩 간헐 회전시킬 수 있다. 본 실시예에서 테이블(210)은 90도씩 간헐 회전한다. 테이블(210)은 네 개의 단부를 포함하는 십자 모양으로 이루어진다. 네 개의 단부 각각에 조명유닛(115)과 밴드 검사유닛(130)이 설치된다. 본 실시예에서 테이블(210)의 각 단부에 조명유닛(115)과 밴드 검사유닛(130)이 세 개씩 배치된다.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.
테이블(210)의 회전 경로 중에는 복수의 작업 존이 마련된다. 복수의 작업 존은 로딩 존(Z1)과, 비전 검사 존(Z2)과, 밴드 검사 존(Z3)과, 언로딩 존(Z4)을 포함한다. 이들 로딩 존(Z1)과, 비전 검사 존(Z2)과, 밴드 검사 존(Z3)과, 언로딩 존(Z4)은 테이블(210)의 회전 방향을 따라 90도 간격씩 차례로 배치된다. 테이블(210)의 간헐 회전에 따라 테이블(210)에 배치되는 조명유닛(115)과 밴드 검사유닛(130)은 로딩 존(Z1)과, 비전 검사 존(Z2)과, 밴드 검사 존(Z3)과, 언로딩 존(Z4)에서 정지할 수 있다. 비전유닛(125)은 비전 검사 존(Z2)에 설치된다.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.
테이블(210)은 도시된 십자 모양 이외에 복수의 조명유닛(115)과 밴드 검사유닛(130)을 지지하고 회전할 수 있는 다양한 다른 형상으로 변경될 수 있다.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.
마스크 공급부(220)는 검사 대상 마스크(10)를 마스크 이송유닛(235)이 픽업할 수 있는 위치로 연속적으로 공급할 수 있다. 마스크 공급부(220)는 복수의 마스크(10)을 일정한 간격으로 피치 이송할 수 있는 컨베이어 구조 등 마스크(10)를 이송할 수 있는 다양한 구조로 이루어질 수 있다.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.
양품 배출부(225)는 양품으로 판별되는 마스크(10)를 정해진 위치로 이송한다. 위생 상태 검사 및 밴드 부착 상태 검사 후 양품으로 판별된 마스크(10)가 마스크 이송유닛(235)에 의해 양품 배출부(225)로 운반된다. 양품 배출부(225)는 마스크 이송유닛(235)에 의해 운반되는 마스크(10)를 연속적으로 이송할 수 있는 컨베이어 구조 등 다양한 구조로 이루어질 수 있다.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 .
불량품 수거부(230)는 불량품으로 판별된 마스크(10)를 수거할 수 있도록 설치된다. 위생 상태 검사 및 밴드 부착 상태 검사 후 불량품으로 판별된 마스크(10)가 마스크 이송유닛(235)에 의해 불량품 수거부(230)로 운반되어 수거된다.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.
마스크 이송유닛(235)은 마스크 공급부(220)에 의해 공급되는 마스크(10)를 픽업하여 조명유닛(115) 위로 운반하고, 조명유닛(115)에서 검사를 마친 마스크(10)를 양품 배출부(225) 또는 불량품 수거부(230)로 운반한다. 마스크 이송유닛(235)은 마스크 공급부(220)에 의해 공급되는 마스크(10)를 픽업하여 조명유닛(115) 위로 운반하는 로딩 유닛(236)과, 테이블(210) 상에서 검사를 마친 마스크(10)를 양품 배출부(225) 또는 불량품 수거부(230)로 운반하는 언로딩 유닛(238)을 포함한다.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 .
로딩 유닛(236)과 언로딩 유닛(238)은 마스크(10)를 흡착할 수 있는 흡착부(237)를 갖는다. 도시된 것과 같이, 로딩 유닛(236)과 언로딩 유닛(238)은 테이블(210) 상에 배치되는 조명유닛(115)의 개수에 대응하는 개수의 흡착부(237)를 포함할 수 있다. 이러한 로딩 유닛(236) 및 언로딩 유닛(238)은 복수의 흡착부(237)를 이용하여 복수의 마스크(10)를 한꺼번에 픽업하여 운반할 수 있다. 로딩 유닛(236)과 언로딩 유닛(238)은 복수의 흡착부(166)를 포함하는 구조 이외에 마스크(10)를 픽업하여 운반할 수 있는 다양한 다른 구조로 변경될 수 있다.The loading unit 236 and the unloading unit 238 have an adsorption unit 237 capable of adsorbing the mask 10 . As shown, 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 .
제어부(240)는 회전 구동기(215)와, 조명유닛(115)과, 비전유닛(125)과, 밴드 검사유닛(130)과, 마스크 공급부(220)와, 마스크 이송유닛(235) 등의 동작을 제어한다. 즉, 제어부(240)는 마스크(10)에 대한 위생 상태 검사 및 밴드 부착 상태 검사가 연속적으로 이루어질 수 있도록 마스크 검사장치(200)의 전반적인 동작을 제어한다.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.
이하에서는, 본 발명의 다른 실시예에 따른 마스크 검사장치(200)의 작용에 대하여 설명한다.Hereinafter, the operation of the mask inspection apparatus 200 according to another embodiment of the present invention will be described.
검사 작업이 시작되면, 제어부(240)는 테이블(210)을 90도씩 간헐 회전시키고, 마스크 공급부(220)를 작동시켜 검사 대상 마스크(10)를 로딩 유닛(236)이 픽업할 수 있는 위치로 이송시킨다. 마스크(10)가 픽업 위치로 이송되면 로딩 유닛(236)이 마스크(10)를 픽업하여 로딩 존(Z1)에 위치하는 조명유닛(115)의 장착부(117) 위로 운반한다. 이때, 도 11에 나타낸 것과 같이, 마스크 본체(11)는 복수의 고정부재(120)에 의해 둘러싸여 장착부(117) 위에 안정적으로 놓인 상태를 유지할 수 있다. 그리고 마스크 본체(11)의 우측 가장자리에 부착되어 있는 밴드(12)는 제1 가동바(132)을 둘러싸도록 테이블(210) 위에 놓이고, 마스크 본체(11)의 좌측 가장자리에 부착되어 있는 밴드(12)는 제2 가동바(136)를 둘러싸도록 테이블(210) 위에 놓인다.When the inspection operation is started, 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 When the mask 10 is transported to the pickup position, 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. At this time, as shown in FIG. 11 , 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 . And 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 .
테이블(210)이 간헐 회전하여 조명유닛(115) 위에 놓인 마스크(10)가 비전 검사 존(Z2)에 위치하면 비전유닛(125)이 마스크(10)를 촬영함으로써 위생 상태 검사가 수행된다. 위생 상태 검사의 구체적인 방법은 상술한 것과 같다. 위생 상태 검사에서 양품으로 판별되는 마스크(10)의 위치와 불량품으로 판별된 마스크(10)의 위치는 제어부(240)에 입력될 수 있다.When the table 210 rotates intermittently and the mask 10 placed on the lighting unit 115 is located in the vision inspection zone Z2 , 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 .
비전 검사 존(Z2)에서 위생 상태 검사가 완료된 후, 테이블(210)이 90도 회전함으로써 조명유닛(115) 위에 놓인 마스크(10)가 밴드 검사 존(Z3)에 도달한다. 밴드 검사 존(Z3)에서는 밴드 검사유닛(130)이 작동하여 마스크(10)에 대한 밴드 부착 상태 검사가 수행된다. 밴드 부착 상태 검사의 구체적인 방법은 상술한 것과 같다. 밴드 부착 상태 검사에서 양품으로 판별되는 마스크(10)의 위치와 불량품으로 판별된 마스크(10)의 위치는 제어부(240)에 입력될 수 있다.After the sanitary condition inspection is completed in the vision inspection zone Z2, the table 210 rotates 90 degrees so that the mask 10 placed on the lighting unit 115 reaches the band inspection zone Z3. In 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 .
밴드 검사 존(Z3)에서 밴드 부착 상태 검사가 완료되면, 제어부(240)가 회전 구동기(215)를 제어하여 테이블(210)을 90도 회전시킨다. 이때, 조명유닛(115) 위에 놓인 마스크(10)가 언로딩 존(Z4)에 도달한다. 언로딩 존(Z4)에서는 언로딩 유닛(238)이 작동하여 검사가 완료된 마스크(10)를 판별 결과에 따라 양품 배출부(225)나 불량품 수거부(230)로 운반한다.When the band attachment state test is completed in the band test zone Z3, the controller 240 controls the rotation driver 215 to rotate the table 210 by 90 degrees. At this time, the mask 10 placed on the lighting unit 115 reaches the unloading zone Z4. In 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.
예를 들어, 도 12에 나타낸 것과 같이, 테이블(210) 상에서 위생 상태 검사 및 밴드 부착 상태 검사를 거친 세 개의 마스크(10) 중에서 가운데 위치하는 마스크(10)가 불량품으로 판별되고 나머지 마스크(10)가 양품으로 판별되는 경우, 언로딩 유닛(238)은 양품인 두 개의 마스크(10)는 양품 배출부(225)로, 불량품인 하나의 마스크(10)는 불량품 수거부(230)로 운반한다.For example, as shown in FIG. 12 , 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 When it is determined that the product is defective, 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 .
즉, 언로딩 유닛(238)은 도 12의 (a)에 나타낸 것과 같이 언로딩 존(Z4)에 위치하는 세 개의 마스크(10)를 한꺼번에 파지한다. 세 개의 마스크(10)를 파지한 언로딩 유닛(238)은 도 12의(b)에 나타낸 것과 같이, 양품 배출부(225) 위로 이동하여 양품으로 판별된 두 개의 마스크(10)만 양품 배출부(225) 위에 올려 놓는다. 계속해서, 언로딩 유닛(238)은 도 12의 (c)에 나타낸 것과 같이, 불량품으로 판별된 하나의 마스크(10)를 파지한 상태로 불량품 수거부(230) 위로 이동하여 불량품 수거부(230)에 떨어트린다.That is, the unloading unit 238 holds the three masks 10 located in the unloading zone Z4 at once as shown in FIG. 12A . As shown in FIG. 12( b ), 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. Subsequently, 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
본 발명의 다른 실시예에 따른 마스크 검사장치(200)는 복수의 마스크(10)가 로딩되는 테이블(210)을 간헐 회전시키면서 마스크(10)에 대한 로딩 공정과, 위생 상태 검사 공정과, 밴드 부착 상태 검사 공정과, 언로딩 공정 또는 양품 및 불량품 선별 공정을 동시에 연속적으로 수행할 수 있다. 따라서 마스크(10)에 대한 검사가 정밀하고도 효율적으로 이루어질 수 있고, 검사 시간을 보다 단축할 수 있다. Mask inspection apparatus 200 according to another embodiment of the present invention 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.
도면에는 테이블(210) 상에 네 개의 단부가 90도 간격으로 배치되고, 테이블(210)의 네 단부 각각에 복수의 조명유닛(115) 및 복수의 밴드 검사유닛(130)이 설치되는 것으로 나타냈으나, 테이블(210)에 설치되는 조명유닛(115) 및 밴드 검사유닛(130) 각각의 개수나 이격 각도는 다양하게 변경될 수 있다. 또한, 테이블(210)은 조명유닛(115) 및 밴드 검사유닛(130) 각각의 개수나 이격 각도에 따라 90도 이외의 다양한 다른 각도 간격으로 간헐 회전할 수 있다.In the drawing, four ends are arranged at intervals of 90 degrees on the table 210, and a plurality of lighting units 115 and a plurality of band inspection units 130 are installed at each of the four ends of the table 210. However, the number or separation angle of each of the lighting unit 115 and the band inspection unit 130 installed on the table 210 may be variously changed. In addition, 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.
또한, 도면에는 테이블(210)이 90도씩 간헐 회전하고, 테이블(210)의 회전 경로를 따라 로딩 존(Z1)과, 비전 검사 존(Z2)과, 밴드 검사 존(Z3)과, 언로딩 존(Z4) 등 네 개의 작업 존이 차례로 배치되는 것으로 나타냈으나, 테이블(210)의 간헐 회전 각도는 다양하게 변경될 수 있다. 그리고 테이블(210)의 회전 경로를 따라 배치되는 작업 존의 개수나 종류도 다양하게 변경될 수 있다. 다른 예로, 밴드 부착 상태 검사는 회전 경로 상의 다양한 작업 존에서 수행될 수 있다.In addition, in the drawing, 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 Although it has been shown that four work zones such as (Z4) are sequentially arranged, the intermittent rotation angle of the table 210 may be variously changed. In addition, the number or type of work zones arranged along the rotation path of the table 210 may be variously changed. As another example, the band attachment state inspection may be performed in various work zones on the rotation path.
또한, 도면에는 마스크(10)를 이송하기 위한 마스크 이송유닛(235)이 픽업 기능을 갖는 로딩 유닛(236)과 언로딩 유닛(238)을 포함하는 것으로 나타냈으나, 마스크 이송유닛(235)은 픽업 기능을 갖는 하나의 장치로 로딩 작업과 언로딩 작업을 수행할 수 있는 구조로 변경될 수 있다.In addition, in the drawing, 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.
이상 본 발명에 대해 바람직한 예를 들어 설명하였으나 본 발명의 범위가 앞에서 설명되고 도시되는 형태로 한정되는 것은 아니다.Although preferred examples of the present invention have been described above, the scope of the present invention is not limited to the forms described and illustrated above.
예를 들어, 도면에는 조명유닛(115)이 하나의 마스크 본체(11)를 떠받칠 수 있는 장착부(117)를 포함하는 것으로 나타냈으나, 조명유닛(115)은 복수의 마스크 본체(11)를 떠받칠 수 있는 구조로 변경될 수 있다.For example, in the drawing, 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.
또한, 도면에는 하나의 비전유닛(125)이 복수의 마스크 본체(11)를 촬영하고 복수의 마스크 본체(11) 각각의 촬영 이미지를 획득하는 것으로 나타냈으나, 비전유닛은 복수 개가 각각 하나의 마스크 본체만 촬영하도록 설치될 수 있다.In addition, in the drawing, it is shown that 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.
지금까지, 본 발명을 본 발명의 원리를 예시하기 위한 바람직한 실시예와 관련하여 도시하고 설명하였으나, 본 발명은 그와 같이 도시되고 설명된 그대로의 구성 및 작용으로 한정되는 것이 아니며, 첨부된 청구범위의 사상 및 범위를 일탈함이 없이 본 발명에 대한 다수의 변경 및 수정이 가능함을 본 발명이 속하는 기술분야의 통상의 기술자들은 잘 이해할 수 있을 것이다.While the present invention has so far been shown and described in connection with preferred embodiments for illustrating the principles of the invention, the invention is not limited to the construction and operation as so shown and described, and is not intended to be limited by the scope of the appended claims. It will be understood by those skilled in the art that many changes and modifications can be made to the present invention without departing from the spirit and scope of the present invention.

Claims (9)

  1. 테이블;table;
    상기 테이블 위에 설치되고, 마스크 본체가 놓일 수 있는 광투과성의 장착부와, 상기 장착부의 하측에 설치되어 상기 장착부 측으로 빛을 조사하는 램프를 구비하는 조명유닛;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;
    상기 장착부 위에 놓이는 마스크 본체에서 이물질의 존재 여부를 확인할 수 있도록 마스크 본체를 촬영하여 촬영 이미지를 획득하는 비전유닛; 및a 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
    마스크 본체의 일측에 부착된 밴드를 마스크 본체로부터 멀어지는 방향으로 당겨 밴드에 텐션력을 가하기 위해 상기 장착부에서 멀어지거나 상기 장착부에 가까워지는 방향으로 이동할 수 있도록 상기 테이블에 설치되는 제1 가동바와, 마스크 본체의 다른 일측에 부착된 밴드를 마스크 본체로부터 멀어지는 방향으로 당겨 밴드에 텐션력을 가하기 위해 상기 장착부에서 멀어지거나 상기 장착부에 가까워지는 방향으로 이동할 수 있도록 상기 테이블에 설치되는 제2 가동바와, 상기 제1 가동바 및 상기 제2 가동바에 각각 이동력을 제공하는 구동부와, 상기 제1 가동바와 상기 제2 가동바 중 적어도 어느 하나의 움직임을 감지하여 감지 신호를 발생할 수 있도록 상기 테이블에 설치되는 센서를 구비하는 밴드 검사유닛;을 포함하는 것을 특징으로 하는 마스크 검사장치.A first movable bar installed on the table so that the band attached to one side of the mask body can be moved away from or closer to the mounting part in order to apply a tension force to the band by pulling the band away from the mask body, and 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 mask body in a direction away from the mask body, and the first A driving unit providing movement force to the movable bar and the second movable bar, respectively, and 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 A mask inspection device comprising: a band inspection unit.
  2. 제1항에 있어서,According to claim 1,
    상기 구동부는 상기 제1 가동바 및 상기 제2 가동바에 각각 사전 설정된 이동 거리만큼 이동할 수 있는 이동력을 제공하되,The driving unit provides a moving force capable of moving by a preset moving distance to the first movable bar and the second movable bar, respectively,
    상기 제1 가동바는 밴드가 걸린 상태에서 밴드에 의해 구속되어 그 이동 거리가 사전 설정된 검사 거리 이하로 제한되고, 상기 제2 가동바는 밴드가 걸린 상태에서 밴드에 의해 구속되어 그 이동 거리가 상기 검사 거리 이하로 제한되며,The first movable bar is constrained by the band in a state in which the band is hung, and its movement distance is limited to less than a preset inspection distance, and the second movable bar is restrained by the band in the state in which the band is caught, so that the movement distance is limited to less than the inspection distance,
    상기 센서는 상기 제1 가동바 또는 상기 제2 가동바가 밴드를 마스크 본체에서 이탈시켜 밴드의 구속력을 풀고 상기 검사 거리를 벗어날 때 감지 신호를 발생하는 것을 특징으로 하는 마스크 검사장치.The sensor is a mask inspection device, characterized in that the first movable bar or the second movable bar to release the band from the mask body to release the binding force of the band and to generate a detection signal when out of the inspection distance.
  3. 제2항에 있어서,3. The method of claim 2,
    상기 센서는 상기 검사 거리를 벗어나도록 이동한 상기 제1 가동바 또는 상기 제2 가동바가 접촉할 수 있는 위치에 설치되는 것을 특징으로 하는 마스크 검사장치.The sensor is a mask inspection apparatus, characterized in that it is installed in a position where the first movable bar or the second movable bar that has moved out of the inspection distance can be in contact.
  4. 제1항에 있어서,The method of claim 1,
    마스크 본체의 가장자리에 접하여 상기 장착부 상에서 마스크 본체의 이동을 제한하기 위해 상기 장착부로부터 돌출되도록 설치되는 복수의 고정부재;를 더 포함하는 것을 특징으로 하는 마스크 검사장치.A mask inspection apparatus further comprising a; a plurality of fixing members installed to protrude from the mounting unit in contact with the edge of the mask body to limit the movement of the mask body on the mounting unit.
  5. 제1항에 있어서,The method of claim 1,
    양품으로 판별된 마스크가 놓일 수 있는 양품 배출부;A non-defective product discharging unit in which a mask determined as a non-defective product can be placed;
    불량품으로 판별된 마스크를 수거하기 위한 불량품 수거부; 및a defective product collection unit for collecting the mask determined as defective; and
    검사가 완료된 마스크를 상기 장착부에서 상기 양품 배출부 또는 상기 불량품 수거부로 운반하는 마스크 이송유닛;을 더 포함하는 것을 특징으로 하는 마스크 검사장치.The mask inspection apparatus further comprising a; a mask transfer unit for transporting the inspected mask from the mounting unit to the good product discharging unit or the defective product collecting unit.
  6. 제1항에 있어서,The method of claim 1,
    상기 테이블에는 상기 제1 가동바 및 상기 제2 가동바가 삽입되는 복수의 테이블홈이 구비되되, 상기 제1 가동바 및 상기 제2 가동바는 각각의 끝단이 상기 테이블의 상면으로부터 돌출되고,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,
    상기 구동부는 상기 테이블의 상면보다 낮게 설치되는 것을 특징으로 하는 마스크 검사장치.The driving unit is a mask inspection apparatus, characterized in that installed lower than the upper surface of the table.
  7. 제1항에 있어서,The method of claim 1,
    상기 테이블을 일정 각도씩 간헐 회전시키는 회전 구동기;를 더 포함하고,Further comprising; a rotation actuator for intermittently rotating the table by a predetermined angle;
    상기 조명유닛과 상기 밴드 검사유닛은 각각 복수 개가 상기 테이블 상에 일정한 각도 간격으로 이격 배치되는 것을 특징으로 하는 마스크 검사장치.A mask inspection device, characterized in that a plurality of the lighting unit and the band inspection unit are spaced apart from each other at regular angular intervals on the table.
  8. 제7항에 있어서,8. The method of claim 7,
    상기 테이블의 회전 경로 중에는 상기 조명유닛 및 상기 밴드 검사유닛이 정지하는 복수의 작업 존이 배치되되,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,
    상기 복수의 작업 존 중 어느 하나에 상기 비전유닛이 설치되는 것을 특징으로 하는 마스크 검사장치.The mask inspection apparatus, characterized in that the vision unit is installed in any one of the plurality of work zones.
  9. 제8항에 있어서,9. The method of claim 8,
    상기 밴드 검사유닛은 상기 복수의 작업 존 중에서 상기 비전유닛이 설치되지 않은 다른 작업 존에서 작동하도록 제어되는 것을 특징으로 하는 마스크 검사장치.The band inspection unit is a mask inspection apparatus, characterized in that it is controlled to operate in another operation zone in which the vision unit is not installed among the plurality of operation zones.
PCT/KR2021/011000 2020-08-21 2021-08-19 Mask inspection device WO2022039511A1 (en)

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KR102277737B1 (en) * 2020-08-21 2021-07-14 한동희 Inspection apparatus for mask
KR102391095B1 (en) * 2021-07-27 2022-04-27 하상수 Fabricating apparatus for face mask
KR102672775B1 (en) * 2021-12-29 2024-06-07 김연진 Inspection and forming device for mask string for mask manufacturing

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