JP2015229141A - Lid member inspection/classification device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lid member inspection/classification device comprising a structure that can suppress damage on a lid member during inspection and suppress deterioration in inspection accuracy even during inspection processing of the outside and/or inside of the lid member at high speed.SOLUTION: In a lid member inspection/classification device, a lid member supply device 100, photographing devices 700 and 800, switching devices 750 and 850 and a lid member receiving device 200 are arranged in this order from an upstream side toward a downstream side in a rotation direction R10 of a rotary table 301 when viewed along the rotation direction; a control part makes the photographing devices 700 and 800 to photograph a lid member CP during rotary driving of the rotary table 301 and determines acceptance or rejection of the lid member CP; and a lid member holding device 310 holding the lid member CP determined to be exhausted based on a result of the determination is switched, by the switching devices 750 and 850, from a holding state into an opening state so as to exhaust the lid member CP.

Description

  The present invention relates to a beverage bottle cap (resin, aluminum), a cap such as a liquor bottle and a cap (crown), a lid of a container, a lid member inspection and sorting device for inspecting the exterior and / or interior of other lid members. About.

  In the production of beverage bottle caps (resin, aluminum), caps such as liquor bottles and caps (crowns), container lids, and other lid members, in the production process, the exterior and / or interior of the lid member The finished state (molded state, printed state) is inspected.

  Japanese Patent Laying-Open No. 2013-255874 (Patent Document 1) discloses a cap separation device having a rotating body that is provided with a rotation center axis horizontally and rotates in a vertical plane. In this cap separation device, the cap is supplied from the upper part of the rotating body to the outer peripheral part of the rotating body, and is discharged separately for each color by the discharge unit located at the lower part of the rotating body. To determine the cap color, the top, inner and side surfaces of the cap are photographed with a camera, and the cap color is identified based on the photographed image.

  In this cap sorting apparatus, while the rotation of the rotating body is stopped for a predetermined time, a process for determining the color of the cap and a process for discharging the cap from the rotating body are executed. The caps are conveyed in a state in which the caps are stored one by one in a partition formed in an annular passage formed between an inner peripheral partition member and an outer peripheral partition member provided on the rotating body. An acrylic transparent cover is provided on the front side of the rotating body.

JP 2013-255874 A

  In the cap sorting device, a gate shutter type structure is adopted for the cap discharge portion. Therefore, it is necessary to stop the rotation of the rotating body in order to separate and discharge the cap for each color. For this reason, there is a limit in separating caps at high speed.

  The top and inner surfaces of the cap are inspected by an inspection camera through the transparent cover. However, there is a concern that the inspection accuracy may be reduced due to deterioration and contamination of the transparent cover due to contact between the transparent cover and the cap. .

  In addition, there is a concern that the cap being rotated and transported may come into contact with a partition member or the like provided on the rotating body, so that the cap is damaged during the inspection.

  The present invention has been made in view of the above problems, and even when the inspection of the outside and / or inside of the lid member is processed at high speed, the lid member is prevented from being damaged during the examination and the inspection accuracy is lowered. An object of the present invention is to provide a lid member inspection sorting device having a structure capable of suppressing the above.

  This lid member inspection / sorting apparatus is a lid member inspection / sorting apparatus that inspects the outside and / or the inside of a lid member and sorts it into an acceptable lid member and an unacceptable lid member, and has the following configuration.

  A lid member inspection device; a lid member supply device that supplies the lid member to the lid member inspection device; and a lid member receiving device that receives the lid members sorted by the lid member inspection device.

  The lid member inspection device has a rotation center axis in the horizontal direction, is arranged in the vertical direction, and is driven to rotate in at least one direction, and a plurality of them at predetermined intervals along the outer peripheral edge of the rotation plate. A lid that is provided and is switchable between a holding state for holding the lid member and an open state for opening the lid member so that the direction in which the axis of the lid member extends is substantially parallel to the rotation center axis. A member holding device; an imaging device that images the lid member held by the lid member holding device from a horizontal direction; a switching device that switches between a holding state and an open state of the lid member holding device; and rotation of the rotating disk And a controller that controls the operation of the drive, the imaging device, and the switching device.

  When viewed along the rotation direction of the rotating disk, the lid member supply device, the imaging device, the switching device, and the lid member receiving device are arranged in this order from the upstream side to the downstream side in the rotation direction. The controller is configured to image the lid member with the imaging device and perform pass / fail judgment of the lid member during the rotational drive of the turntable, and to determine whether to eject as a result of the pass / fail judgment. The lid member holding device that holds the lid member is switched from the holding state to the open state by the switching device, and the lid member is discharged.

  In another embodiment, the lid member holding device is positioned on one side of the lid member on the upstream side in the rotational direction when viewed along the rotational direction of the rotary disk, and is fixed to the rotary disk. The first clamp provided on the other side of the lid member is located on the other side of the lid member on the downstream side in the rotational direction, and moves between a holding state for holding the lid member and an open state for opening the lid member. The lid member supply device, when supplying the lid member to the lid member holding device, moves the second clamp from a holding state to an open state, After supplying the lid member to the lid member holding device, the lid member holding device includes a mechanism for moving the second clamp from the open state to the holding state, and the lid member receiving device receives the lid member from the lid member holding device. , The second clamp Moving from lifting state to an open state, after receiving the lid member from the cap member holding device includes a mechanism for moving the holding state the second clamp from an open state.

  In another aspect, the imaging device is viewed along the rotation direction of the first imaging device that images the lid member from one direction and the rotation direction of the rotating disk as seen from the direction in which the axis of the lid member extends. A switching device that includes the second imaging device that is disposed on the downstream side of the first imaging device and that images the lid member from another direction when viewed from the direction in which the axis of the lid member extends. Includes a first opening / closing switching device and a second opening / closing switching device disposed downstream of the first opening / closing switching device when viewed along the rotation direction of the rotating disk, and the control unit includes: The lid member holding device that holds the lid member that is determined to be unacceptable by performing imaging of the lid member with the first imaging device and determining whether the lid member is acceptable or not is held by the first opening / closing switching device. Switch from open to open, and judge the above failure The lid member is discharged, the second imaging device images the lid member, the lid member is judged to pass or fail, and the lid member holding device that holds the lid member that is determined to be rejected is 2 The switching state is switched from the holding state to the open state by the opening / closing switching device, and the lid member determined to be unacceptable is discharged.

  In another aspect, the first opening / closing switching device further includes a first air blower device that blows gas toward the lid member, and the second opening / closing switching device includes a second air blowing gas toward the lid member. An air blower device is further included, and the controller blows gas to the lid member determined to be unacceptable by the first air blower device when switching the first opening / closing switching device from the holding state to the open state. When the second open / close switching device is switched from the holding state to the open state, gas is blown by the second air blower device to the lid member determined to be unacceptable.

  In another embodiment, the first clamp and the second clamp are provided with an axial positioning portion of the lid member.

  In another embodiment, the lid member supply device blows a gas that promotes movement toward the lid member holding device when the lid member is supplied to the lid member holding device. An air blower device is further provided.

  This lid member inspection and sorting device has a structure capable of suppressing damage to the cap and suppressing a decrease in inspection accuracy even when the inspection of the outside and / or inside of the lid member is processed at high speed. .

It is a figure which shows the whole structure of the cover member test | inspection sorting apparatus in this Embodiment. It is a figure which shows the arrangement configuration of the main apparatuses of the cover member inspection sorting apparatus in this Embodiment. It is a schematic diagram which shows the state which applies the push pressure by the gas to the cover member in the cover member supply apparatus in this Embodiment. It is the elements on larger scale of the cover member supply apparatus in this Embodiment. It is a figure which shows the structure and holding | maintenance state of the cover member holding | maintenance apparatus in this Embodiment. It is a figure which shows the open state of the cover member holding | maintenance apparatus in this Embodiment. It is a 1st figure which shows the opening / closing operation | movement of the 2nd clamp by the opening / closing switching block of the cover member holding | maintenance apparatus in this Embodiment. It is a 2nd figure which shows the opening / closing operation | movement of the 2nd clamp by the opening / closing switching block of the cover member holding | maintenance apparatus in this Embodiment. It is a 3rd figure which shows the opening / closing operation | movement of the 2nd clamp by the opening / closing switching block of the cover member holding | maintenance apparatus in this Embodiment. It is a figure which shows the external shape of a cover member. It is a figure which shows the shape inside the movable clamp in this Embodiment. It is sectional drawing which shows the state which hold | maintained the cover member with the movable clamp and fixed clamp in this Embodiment. It is sectional drawing which shows the state which hold | maintained the cover member of another shape with the movable clamp and fixed clamp in this Embodiment. It is sectional drawing which shows the state which hold | maintained the cover member of another shape further by the movable clamp and fixed clamp in this Embodiment. It is a side view which shows the attachment state of the 1st imaging device and 1st opening / closing switching apparatus in this Embodiment. It is a figure which shows the monitor screen imaged with the 1st imaging device in this Embodiment. It is a side view which shows the attachment state of the 2nd imaging device and 2nd opening / closing switching apparatus in this Embodiment. It is a figure which shows the monitor screen imaged with the 2nd imaging device in this Embodiment. It is a figure which shows the structure of the 1st opening / closing switching apparatus in this Embodiment. It is a figure which shows the state which the 1st opening / closing switching apparatus in this Embodiment operate | moved. It is an enlarged view of the acceptance cover member receiving apparatus in this Embodiment. It is a functional block diagram of the lid member inspection sorting device in the present embodiment.

  The lid member inspection and sorting device in each embodiment based on the present invention will be described below with reference to the drawings. In the embodiments described below, when referring to the number, amount, and the like, the scope of the present invention is not necessarily limited to the number, amount, and the like unless otherwise specified. The same parts and corresponding parts are denoted by the same reference numerals, and redundant description may not be repeated. It is planned from the beginning to use a combination of the configurations in each embodiment as appropriate.

[Cover member inspection sorting device 1000]
With reference to FIG. 1, the external appearance of the lid member inspection sorting apparatus 1000 in the present embodiment will be described. FIG. 1 is a diagram showing an overall configuration of a lid member inspection sorting apparatus 1000 according to the present embodiment. The lid member inspection and sorting device 1000 of the present embodiment inspects the outside and the inside of caps and inner caps of beverage bottle caps, liquor bottles, container lids, and other lid members, and passes and failed lid members. It is a device that sorts members.

  There are various types of lid members as described above. In the embodiment described below, an aluminum cap CP used as an example of a lid member is used as an example of a lid member unless otherwise specified. The case of inspection will be described.

  The lid member inspection sorting apparatus 1000 has a frame 600, and the lid member inspection apparatus 300 is disposed and accommodated on the upper portion of the frame 600. The detailed structure of the lid member inspection apparatus 300 will be described later. On the upper part of the lid member inspection apparatus 300, a lid member supply apparatus 100 that supplies the lid member inspection apparatus 300 with a cap CP to be inspected is provided. The cap CP in an aligned state is introduced into the lid member supply device 100 using a parts feeder (not shown) provided outside.

  When viewed from the front, an acceptable lid member receiving device 200 is provided on the right side of the lid member inspection device 300 to receive the cap CP that has been determined to be acceptable in the lid member inspection device 300. In the lid member inspection apparatus 300, the cap CP determined to be rejected is discharged into a failed lid member receiving box 400, 500 as a failed lid member receiving apparatus provided below the lid member inspection apparatus 300 (in the drawing). Arrows A4 and A5).

(Main equipment layout)
Next, with reference to FIG. 2 to FIG. 4, an arrangement configuration of main devices of the lid member inspection sorting device 1000 in the present embodiment will be described. FIG. 2 is a diagram showing an arrangement configuration of main devices of the lid member inspection and sorting device 1000, FIG. 3 is a schematic diagram showing a state in which a push pressure is applied to the cap CP in the lid member supply device 100, and FIG. 3 is a partially enlarged view of a lid member supply apparatus 100. FIG. In addition, the lid member inspection sorting apparatus 1000 of the present embodiment inspects about 1500 caps CP per minute.

  The lid member inspection apparatus 300 has a rotation disc 301 having a rotation center axis C1 in the horizontal direction, arranged in the vertical direction, and driven to rotate in one direction (R10 direction in FIG. 2). A plurality of outer peripheral edges of the rotating disk 301 are provided at predetermined intervals along the outer peripheral edge, and both sides of the cap CP are held so that the extending direction of the axis of the cap CP is substantially parallel to the rotation center axis C1. A lid member holding device 310 is provided. As the turntable 301 rotates, the cap CP is rotated and conveyed. In the drawing, the cap CP is shown in a state where the bottom surface inside the cap CP is visible.

  A servo motor 360 (see FIGS. 15 and 17) is connected to the turntable 301 as a drive member, and the rotation speed and rotation angle of the turntable 301 are controlled by a control unit C1000 described later. Therefore, the control unit C1000 knows the rotation angle positions of all the lid member holding devices 310.

  In the present embodiment, 24 lid member holding devices 310 are arranged at equal intervals at a 15 ° pitch on the outer peripheral edge. The number of lid member holding devices 310 is not limited to 24, and can be appropriately increased or decreased according to the size of the rotating disk 301 and the inspection capability required for the lid member inspection and sorting device 1000. The lid member holding device 310 is provided so as to be switchable between a holding state for holding both sides of the cap CP and an open state for opening the cap CP. The configuration will be described later.

  In this lid member inspection sorting apparatus 1000, when viewed along the rotation direction R10 of the turntable 301, the lid member supply device 100, the first imaging device 700, from the upstream side to the downstream side in the rotation direction R10, The second imaging device 800, the first opening / closing switching device 750, the second opening / closing switching device 850, and the lid member receiving device 200 are arranged in this order.

  In the present embodiment, when the turntable 301 is regarded as a clock, the lid member supply device 100 is at 1 o'clock, the first imaging device 700 is at 11 o'clock, and the second imaging device 800 is at 9 o'clock. The first opening / closing switching device 750 is provided at the 7 o'clock position, the second opening / closing switching device 850 is provided at the 5 o'clock position, and the lid member receiving device 200 is provided at the 4 o'clock position.

  The arrangement position of each device is not limited to the above-described clock position, and can be changed as appropriate according to the size of the turntable 301, the number of image pickup devices, opening / closing switching devices, and lid member receiving devices.

  Further, it is only necessary that the lid member supply device, the imaging device, the opening / closing switching device, and the lid member receiving device are arranged in this order from the upstream side to the downstream side when viewed from the rotation direction of the turntable 301. The position of the lid member supply device need not be limited to the 1 o'clock position.

  In the lid member inspection / sorting apparatus 1000, the rotating plate 301 and the lid member holding device 310 fixed to the rotating plate 301 rotate at high speed, and the lid member supply device 100, the first imaging device 700, the second imaging device 800, the first imaging device. The opening / closing switching device 750, the second opening / closing switching device 850, and the lid member receiving device 200 are fixed at fixed positions such as a support member (not shown).

  The cap CP is sequentially supplied to the lid member supply device 100 from a part feeder (not shown) that aligns the direction of the cap CP (the position of the bottom surface) in one direction. The supply amount of the cap CP to the lid member supply device 100 is about 1500 pieces per minute as described above.

(Cover member supply device 100)
Referring to FIG. 2, the cap CP supplied from the parts feeder is provided with a first supply guide groove 110, a second supply guide groove 120, and a third one provided in the cover member supply guide main body 101 of the cover member supply device 100. The supply guide groove 130 passes in the R1 direction. The first supply guide groove 110, the second supply guide groove 120, and the third supply guide groove 130 are not provided in a straight line, but the guide grooves intersect with each other because the cap in the lid member supply device 100 is used. This is to prevent clogging of the CP.

  In the present embodiment, as described above, as a result of providing the guide grooves so as to intersect, there is a concern that the supply pressure P of the cap CP to the lid member holding device 310 may be reduced. Therefore, in order to assist the reduction of the supply pressure P, air blower devices 140 are provided at two locations (positions indicated by A1 and A2 in FIG. 2) as shown in FIG. A downward gas (air in the present embodiment) AB is blown. Note that the air blower device 140 is not necessarily provided when the supply pressure P to the lid member holding device 310 of the cap CP can be ensured only by natural fall due to the weight of the cap CP.

  Referring to FIG. 4, when the cap CP is delivered from the lid member supply device 100 to the lid member holding device 310, the lid member holding device 310 rotates in the R10 direction. It is conceivable that the cap CP next to the delivered cap CP moves in the R10 direction following the cap CP delivered to the lid member holding device 310. Therefore, the lid member supply device 100 is provided with a follow-up restriction block 150 for restricting the follow-up movement of the cap CP in the third supply guide groove 130.

  The follow-up restriction block 150 is located downstream of the rotation direction R10 in the third supply guide groove 130. The upper end side of the tracking limit block 150 is held so as to be rotatable (in the direction of arrow B11 in the figure) by the rotation axis R2, and the coil spring B1 is between the lower end side of the tracking limit block 150 and the lid member supply guide main body 101. Is provided. As a result, when the cap CP attempts to move, the cap CP is returned to the normal trajectory based on the elastic deformation by the coil spring B1.

(Configuration of lid member holding device 310)
Next, the configuration of the lid member holding device 310 will be described with reference to FIGS. 5 and 6. 5A and 5B are diagrams showing the structure and holding state of the lid member holding device 310 according to the present embodiment, and FIG. 6 is a diagram showing the open state of the lid member holding device 310 according to the present embodiment. It is.

  The lid member holding device 310 is rotatable about a base 311, a fixed clamp 321 as a first clamp fixed to the base 311 using fixing pins P 31 and P 32, and the base 311 around the clamp rotation center R 31. The movable clamp 322 is provided as a second clamp provided at. A contact roller 323 that contacts an open / close switching block 350 described later and controls the open / close movement of the movable clamp 322 is attached to the movable clamp 322 around the contact roller rotation center R32. . The base 311 is provided with a block 312, and a coil spring B <b> 2 is disposed between the block 312 and the recess 322 a provided in the movable clamp 322.

  In the above configuration, when viewed along the rotation direction R10 of the turntable 301, the fixed clamp 321 is located on the upstream side in the rotation direction, located on one side of the cap CP, and the movable clamp 322 is located in the rotation direction R10. Is located on the other side of the cap CP.

  The movable clamp 322 holds the cap CP (state shown in FIG. 5: movement in the direction of arrow C31), and opened state (opening state shown in FIG. 6: movement in the direction of arrow C32). It is provided so that movement is possible. When the cap CP is held from both sides, the fixed clamp 321 and the movable clamp 322 have at least the side surfaces of the cap CP so that the direction in which the axis A11 of the cap CP extends is substantially parallel to the rotation center axis C1 of the turntable 301. Hold in two directions.

  Referring again to FIG. 2, when supplying the cap CP to the lid member holding device 310, the lid member supply device 100 moves the movable clamp 322 from the holding state to the open state, so that the cap CP is moved to the lid member holding device 310. After the supply, the open / close switching block 350 is included as a mechanism for moving the movable clamp 322 from the open state to the holding state. The open / close switching block 350 is fixed at a fixed position such as a support member (not shown), similar to the lid member supply device 100.

  Similarly, in the lid member receiving apparatus 200, when the cap CP is received from the lid member holding apparatus 310, the movable clamp 322 is moved from the holding state to the open state, and after the cap CP is received from the lid member holding apparatus 310, An open / close switching block 350 is included as a mechanism for moving the movable clamp 322 from the open state to the holding state. The open / close switching block 350 is also fixed at a fixed position such as a support member (not shown), similar to the lid member receiving apparatus 200.

(Opening and closing of lid member holding device 310)
Next, a mechanism for moving the movable clamp 322 by the open / close switching block 350 from the holding state to the open state and further moving from the open state to the holding state will be described with reference to FIGS. 7 to 9 are first to third diagrams showing the opening / closing operation of the movable clamp 322 by the opening / closing switching block 350. For convenience of explanation, in the lid member holding device 310, only the movable clamp 322 and the contact roller 323 that perform the opening and closing movement are illustrated.

  With reference to FIG. 7, the open / close switching block 350 has an inlet-side inclined contact side 351, a central contact side 352, and an outlet-side inclined contact side 353. In the normal state, the movable clamp 322 is urged by the coil spring B2 at a position where the cap CP is sandwiched from both sides together with the fixed clamp 321 and the cap CP is held.

  With reference to FIGS. 7 to 8, the contact roller 323 provided in the movable clamp 322 is moved toward the entrance side inclined contact side 351 and the center contact side 352 with the rotation of the turntable 301 in the rotation direction R <b> 10. Is pushed up radially outward (in the direction of arrow C33 in the figure). As a result, the movable clamp 322 rotates in the C32 direction around the clamp rotation center R31. Thereby, the movable clamp 322 is in a state of opening the cap CP. At this time, B2 provided in the movable clamp 322 is in the most contracted state as shown in FIG.

  Next, referring to FIGS. 8 to 9, when the turntable 301 further rotates in the rotation direction R <b> 10, the contact roller 323 provided on the movable clamp 322 is inclined from the center contact side 352 to the outlet side inclined contact side. The movable clamp 322 is rotated in the C31 direction around the clamp rotation center R31 based on the restoring force of B2 provided on the movable clamp 322 while abutting on the 353. As a result, the movable clamp 322 is in a state of holding the cap CP. At this time, B2 provided in the movable clamp 322 is in the most extended state as shown in FIG.

(Shapes of fixed clamp 321 and movable clamp 322)
Next, the shapes of the fixed clamp 321 and the movable clamp 322 will be described with reference to FIGS. 10 to 14. 10 is a diagram showing the outer shape of the cap CP, FIG. 11 is a diagram showing the inner shape of the movable clamp 322, and FIG. 12 is a sectional view showing a state in which the cap CP is held by the fixed clamp 321 and the movable clamp 322. 13 is a cross-sectional view showing a state in which the cap CP2 having another shape is held by the fixed clamp 321 and the movable clamp 322, and FIG. 14 shows a state in which another cap CP3 is further held by the fixed clamp 321 and the movable clamp 322. It is sectional drawing.

  As shown in FIG. 10, the cap CP shown in the present embodiment is an aluminum lid member used for a sake bottle as an example of a lid member. The cap CP has a bottomed cylindrical shape centering on the axis A11, and an annular groove M1 recessed inward is provided on the outer surface of the cap CP. Therefore, as shown in FIG. 11, the movable clamp 322 of the present embodiment is provided with an engaging convex portion 322b that fits in the annular groove M1 on the inner side 322n as an axial positioning portion of the cap CP. It has been. Similarly, an engaging convex portion 321b is provided inside the fixed clamp 321 (see FIG. 12).

  With reference to FIG. 12, the engagement convex portion 321 b is provided inside the fixed clamp 321, and the engagement convex portion 322 b is provided inside the movable clamp 322, whereby the cap CP is held by the fixed clamp 321 and the movable clamp 322. In this case, the engaging protrusion 321b and the engaging protrusion 322b are fitted in the groove M1.

  As a result, the movement of the cap CP in the extending direction of the axis A11 is prohibited. Accordingly, it is possible to prevent a shift in the photographing distance of the cap CP when the cap CP is imaged by the first imaging device 700 and the second imaging device 800 described later. As a result, it is possible to maintain and improve inspection accuracy.

  Referring to FIG. 13, the lid member also has many shapes that do not have grooves on the outer surface. The cap CP2 shown in FIG. 13 has a shape in which an aluminum lid member, a resin beverage bottle cap, and the like used for a liquor bottle before final molding are assumed. For the cap CP2 having such a shape, a shape in which jaw portions 321c and 322c are provided inside the fixed clamp 321 and the movable clamp 322 as shown in the drawing may be employed as the axial positioning portion of the cap CP2. .

  Even in the shape in which the jaw portions 321c and 322c are provided, when the cap CP2 is held by the fixed clamp 321 and the movable clamp 322, the jaw portions 321c and 322c hold the top surface of the cap CP2. As a result, the movement of the cap CP2 in the extending direction of the axis A11 is prohibited. As a result, it is possible to prevent the deviation of the photographing distance of the cap CP2. As a result, it is possible to maintain and improve inspection accuracy.

  Referring to FIG. 14, a cap CP <b> 3 having a shape of an inner cap (crown) such as a liquor bottle is assumed as a lid member of still another shape. The cap CP3 has a flange portion CP3f that projects outward from the top surface portion. Therefore, as the axial positioning portion of the cap CP3, grooves 321d and 322d for receiving the flange portion CP3f may be provided inside the fixed clamp 321 and the movable clamp 322.

  Even in the shape of providing the groove portions 321d and 322d, when the cap CP3 is held by the fixed clamp 321 and the movable clamp 322, the groove portions 321d and 322d hold the flange portion CP3f of the cap CP3. As a result, the movement of the cap CP3 in the extending direction of the axis A11 is prohibited. As a result, it is possible to prevent the photographing distance of the cap CP3 from being shifted. As a result, it is possible to maintain and improve inspection accuracy.

  Although various forms exist for the lid member, by providing a positioning member in the axial direction of the lid member inside the fixed clamp 321 and the movable clamp 322, an imaging distance shift in the imaging device of the lid member occurs. Can be prevented. As a result, it is possible to maintain and improve inspection accuracy.

(First imaging device 700 and second imaging device 800)
Next, the first imaging device 700 and the second imaging device 800 will be described with reference to FIGS. 15 to 18. 15 is a side view showing the mounting state of the first imaging device 700 and the first opening / closing switching device 750 (corresponding to a cross-sectional view taken along line XV-XV in FIG. 2), and FIG. FIG. 17 is a diagram showing an imaged monitor screen MT1, FIG. 17 is a side view showing a mounting state of the second imaging device 800 and the second opening / closing switching device 850 (corresponding to a sectional view taken along line XVII-XVII in FIG. 2), FIG. 18 is a diagram showing a monitor screen MT2 imaged by the second imaging device 800.

  Referring to FIG. 15, first imaging device 700 is located outside the outer peripheral edge of turntable 301 and images the cap CP held by lid member holding device 310 from the horizontal direction. In the present embodiment, the first imaging device 700 images the bottom surface and the inner peripheral side surface of the cap CP from one direction as viewed from the direction in which the axis A11 of the cap CP extends.

  The first imaging device 700 includes a first imaging camera 710, a light 720, and a fisheye lens 730. FIG. 16 schematically shows a bottom image PH11 and an inner peripheral side image PH12 after image processing of the cap CP imaged by the first imaging device 700. In the control unit, which will be described later, a bottom image and an inner peripheral side image to be compared are stored in advance as acceptable products, and the comparison target image and an image captured by the first imaging device 700 are compared. The pass / fail judgment of the bottom surface and the inner peripheral side surface of the cap CP is performed. Specific inspection items for the bottom surface and the inner peripheral surface include dirt, scratches, liner chipping, deformation, and the like.

  Referring to FIG. 15 again, the cap CP determined to be unacceptable is switched to the open state by the first opening / closing switching device 750 when the holding state of the lid member holding device 310 that holds the failing cap CP is changed to the open state. The discharge is sorted (in the direction of arrow A4) into the acceptable lid member discharge box 400.

  Furthermore, in this Embodiment, in order to discharge | emit the failed cap CP from the cover member holding | maintenance apparatus 310 more reliably, the 1st opening / closing switching apparatus 750 is with respect to the failed cap CP determined to be failed. It has the 1st air blower apparatus 910 which blows air AB. The mechanism of the first opening / closing switching device 750 will be described later.

  Referring to FIG. 17, second imaging device 800 is located outside the outer peripheral edge of turntable 301 and images the cap CP held by lid member holding device 310 from the horizontal direction. In the present embodiment, the second imaging device 800 images the top surface of the cap CP from another direction opposite to the first imaging device 700 when viewed from the direction in which the axis A11 of the cap CP extends.

  The second imaging device 800 includes a second imaging camera 810 and a light 820. FIG. 18 schematically shows a top image PH21 after image processing of the cap CP imaged by the second imaging device 800. In the control unit, which will be described later, a top surface image to be compared as an acceptable product is stored in advance, and the comparison target image is compared with the image captured by the second imaging device 800 to determine the cap CP. The pass / fail judgment of the top surface is performed. Specific inspection items on the top surface include poor color tone, printing chipping, punching displacement, scratches, dirt, paint pinholes, shoulder scratches, and the like.

  Referring to FIG. 17 again, the cap CP determined to be unacceptable is switched to the open state by the second opening / closing switching device 850 when the holding state of the lid member holding device 310 holding the failing cap CP is changed to the open state. Discharge sorting (in the direction of arrow A5) is performed in the acceptable lid member discharge box 500.

  Furthermore, in the present embodiment, in order to release the failed cap CP from the lid member holding device 310 more reliably, the second opening / closing switching device 850 is configured to reject the failed cap CP that has been determined as failed. It has the 2nd air blower apparatus 920 which blows air AB. The mechanism of the second opening / closing switching device 850 will be described later.

  As described above, the rotating disk 301 having the rotation center axis C1 in the horizontal direction and arranged in the vertical direction and driven to rotate in one direction (R10 direction in FIG. 2) is used. A plurality of lid member holding devices 310 are provided. Furthermore, the lid member holding device 310 holds both sides of the cap CP so that the extending direction of the axis of the cap CP is substantially parallel to the rotation center axis C1. As a result, since the cap CP does not touch other members in the state of being held on the rotating disk 301, the cap CP is not damaged during the inspection.

  Further, dust or the like is not accumulated on the top surface, the bottom surface, and the inner peripheral side that are the inspection surfaces of the cap CP, and the first imaging device 700 and the second imaging device 800 directly perform the top surface and the bottom surface of the cap CP. Further, the inner peripheral side surface can be imaged, and the inspection accuracy is not lowered.

(First opening / closing switching device 750 / second opening / closing switching device 850)
Next, with reference to FIG. 19 and FIG. 20, the switching operation between the holding state and the releasing state of the lid member holding device 310 by the first opening / closing switching device 750 will be described. Note that the mechanism of the second opening / closing switching device 850 is the same as that of the first opening / closing switching device 750, and therefore, redundant description will not be repeated.

  Referring to FIG. 19, the first opening / closing switching device 750 includes a substantially L-shaped switching lever 751 provided to be rotatable about the rotation axis R5. The switching lever 751 has a contact surface 751a that protrudes outward in a curved shape. An air cylinder 752 for moving the switching lever 751 is provided above the switching lever 751.

  The air cylinder 752 has a rod 752 a that can project toward the switching lever 751. A coil spring B3 is connected between the tip of the switching lever 751 and the air cylinder 752 using a bolt B21. The insertion and removal of the rod 752a is controlled by the control unit C1000 described later. Note that the rod 752a is not limited to the air cylinder 752 as long as the rod 752a can be taken in and out, and a solenoid type cylinder may be employed.

  In the normal state shown in FIG. 19, the switching lever 751 is drawn to the position closest to the air cylinder 752 by the biasing force of the coil spring B3. In this state, as shown in FIG. 19, the contact roller 323 provided in the movable clamp 322 of the lid member holding device 310 does not contact the contact surface 751 a of the switching lever 751, and does not contact the contact roller 323. 323 passes outside the contact surface 751a of the switching lever 751 (trajectory R). Therefore, the cap CP rotates while being held by the lid member holding device 310.

  Next, with reference to FIG. 20, a case where the first opening / closing switching device 750 switches the lid member holding device 310 to the open state will be described. When an opening signal is output to the air cylinder 752 from the control unit C1000, which will be described later, the rod 752a is projected outward (P11). As a result, the rod 752a contacts the switching lever 751, the switching lever 751 rotates about the rotation axis R5, and the contact surface 751a of the switching lever 751 contacts the contact roller 323 provided on the movable clamp 322. Move to the position where it touches.

  As a result, after the switching lever 751 has moved to the position shown in FIG. 20, the lid member holding device 310 that passes the outer periphery of the switching lever 751 enters a state in which the contact roller 323 contacts the contact surface 751a. Accordingly, the movable clamp 322 is pushed down to the radially outer side C33 of the rotating disk 301 while being in contact with the contact surface 751a, similarly to the state shown in FIG. As a result, the movable clamp 322 rotates about the clamp rotation center R31 in the C32 direction, and the movable clamp 322 is in a state of opening the cap CP.

  At this time, the coil spring B3 provided in the movable clamp 322 is in the most extended state as shown in FIG. Thereafter, when the contact roller 323 passes through the contact surface 751a, the coil spring B3 contracts to the original length, so that the lid member holding device 310 returns from the opened state to the held state. The mechanism of the second opening / closing switching device 850 is the same as that of the first opening / closing switching device 750.

(Cover member receiving apparatus 200)
The lid member receiving apparatus 200 will be described with reference to FIG. As a result of the imaging of the cap CP by the first imaging device 700 and the second imaging device 800, the cap CP determined to be unacceptable does not reach the lid member receiving device 200, and reaches the failed lid member receiving boxes 400 and 500. Sorted. Therefore, the cap CP that has reached the lid member receiving apparatus 200 is the cap CP that has been determined to be acceptable.

  When the lid member holding device 310 reaches the lid member receiving device 200, the movable clamp 322 rotates around the clamp rotation center R31 by the function of the open / close switching block 350 described with reference to FIGS. It becomes. In the lid member receiving apparatus 200, the main body 210 is provided with an engagement claw 212 provided so as to communicate with the carry-out guide groove 211, and the engagement claw 212 is passed by the lid member holding apparatus 310. The cap CP is engaged with the cap CP and guided to the carry-out guide groove 211. The cap CP guided in the carry-out guide groove 211 is sequentially accumulated in a storage area provided outside the apparatus.

  The lid member holding device 310 that has passed through the lid member receiving device 200 returns to the holding state and receives the cap CP to be inspected from the lid member supply device 100 again.

(Pass / fail judgment / sorting flow)
The pass / fail judgment / sorting flow of the cap CP using the lid member inspection sorting apparatus 1000 having the above configuration will be described with reference to FIG. FIG. 22 is a functional block diagram of the lid member inspection / sorting apparatus 1000.

  Referring to FIG. 22, the rotation speed and rotation angle of servo motor 360, air blower device 140, first imaging device 700, first opening / closing switching device 750, first air blower device 910, second imaging device 800, second opening / closing switching. Operation control of the device 850 and the second air blower device 920 is executed by signal processing from the control unit C1000.

  A servo motor 360 (see FIGS. 15 and 17) is connected to the turntable 301 as a drive member, and the rotation angle of the turntable 301 is recognized by the control unit C1000. Therefore, the controller C1000 knows the rotational positions of all the lid member holding devices 310.

  Referring to FIGS. 2 and 22, cap CP is successively transferred from lid member supply device 100 to lid member holding device 310 in a state where rotating disc 301 is rotated at about 1500 revolutions per minute by servo motor 360. It is. At the position P2, the control unit C1000 captures the bottom image PH11 and the inner side surface image PH12 of the cap CP by the first imaging device 700, performs image processing, and performs a pass / fail determination.

  When it is determined that it has failed, the lid member holding device 310 that holds the cap CP for failure determination operates the first opening / closing switching device 750 at the timing when it reaches the position P4, and the cap CP for failure determination. The lid member holding device 310 for holding is opened. At the same time, the first air blower device 910 blows air AB against the cap CP determined to be unacceptable. The cap CP determined to be rejected is discharged into the reject lid member receiving box 400.

  When it is determined to be acceptable, the first opening / closing switching device 750 and the first air blower device 910 are allowed to pass without being operated when the lid member holding device 310 that holds the cap CP for the acceptance determination reaches the position P4. .

  In addition, at the position P3, the control unit C1000 captures the top image PH21 of the cap CP by the second imaging device 800, performs image processing, and performs a pass / fail determination.

  When it is determined as failed, the lid member holding device 310 holding the failure determination cap CP operates the second opening / closing switching device 850 at the timing when it reaches the position P5, and the failure determination cap CP is reached. The lid member holding device 310 for holding is opened. At the same time, the second air blower device 920 blows air AB against the cap CP determined to be unacceptable. The cap CP determined to be rejected is discharged to the reject lid member receiving box 500.

  When it is determined to be acceptable, when the lid member holding device 310 that holds the cap CP for which the determination is acceptable reaches the position P5, the second opening / closing switching device 850 and the second air blower device 920 are allowed to pass without being operated. .

  As described above, the cap CP determined to be unacceptable as a result of the imaging of the cap CP by the first imaging device 700 and the second imaging device 800 does not reach the lid member receiving device 200 and receives the failed lid member. Sorted into boxes 400 and 500. The cap CP that has reached the lid member receiving device 200 is a cap CP that has been determined to be acceptable, and all the cap CP that has reached the lid member receiving device 200 is collected by the lid member receiving device 200.

  The lid member holding device 310 is a section where the cap member holding device 310 does not hold the cap CP until it reaches the lid member supply device 100 after passing through the lid member receiving device 200. However, in order to further improve safety, when it is confirmed that the lid member holding device 310 holds the cap CP in this section using an infrared sensor or the like, the lid member inspection sorting device 1000 is stopped. Control may be performed.

(Action / Effect)
As described above, according to the lid member inspection and sorting apparatus 1000 in the present embodiment, the pass / fail judgment of the cap CP is performed while the rotating plate 301 is rotated, and further, the passed product and the rejected product are sorted. ing. This enables inspection sorting by high-speed continuous processing.

  In addition, since there is no contact or friction with the fixed member during the rotation conveyance of the cap CP, damage to the cap CP can be suppressed. In addition, since only the side surface of the cap CP is gripped and rotated and conveyed, it is possible to perform imaging with nothing between the imaging camera and the cap CP. As a result, when other members (transparent plates or the like) are interposed, the inspection accuracy is not deteriorated due to deterioration or contamination of the members.

  Further, a shape along the side surface of the cap CP is provided inside the fixed clamp 321 and the movable clamp 322. Thereby, the movement of the cap CP in the axial direction is suppressed, and a stable bottom surface image, inner peripheral side surface image, and top surface image can be acquired, and inspection accuracy can be maintained and improved.

  Furthermore, since the cap CP is rotated and transported using the turntable 301, the area required for transporting the cap CP can be reduced, and the lid member inspection sorting apparatus 1000 can be downsized. Furthermore, by arranging the rotating disk 301 along the vertical plane, it is possible to take an image of the cap CP from both sides in the horizontal direction, eliminating the need for a cap top-and-bottom replacement mechanism and operation. The sorting apparatus 1000 can be downsized.

  In the above embodiment, the case where the cap CP is imaged at two locations and the cap CP is rejected at two locations is described. However, the cap CP is imaged at one location, The configuration may be such that the cap CP is rejected and discharged at one location, or the cap CP is imaged at three or more locations and the cap CP is rejected and discharged at three or more locations.

  In addition, it is not necessary that the number of imaging positions of the cap CP and the number of reject discharge positions coincide with each other. For example, the cap CP is imaged at two locations, and the reject discharge of the cap CP is performed at one location. You may do it.

  Further, the case where the bottom image, the inner peripheral side image, and the top surface image of the cap CP are acquired and the pass / fail determination is performed has been described, but the control for acquiring the pass / fail determination by acquiring only the bottom image, For example, control may be performed in which only an image is acquired to determine pass / fail.

  In order to further improve safety, a sensor for monitoring the movement of the cap CP in the axial direction is provided, and the movement amount of the cap CP in the axial direction exceeds the safe movement amount. Alternatively, control for stopping the lid member inspection sorting apparatus 1000 may be performed.

  Moreover, although the structure which discharges | emits a rejected product to the position of the rejection cover member receiving box 400,500 is employ | adopted, it is not limited to this structure. For example, an acceptable product lid member discharge area may be provided at a position where the failed lid member receiving boxes 400 and 500 are provided, and a failed lid member receiving area may be provided at a position of the acceptable lid member receiving apparatus 200.

  Moreover, in the said embodiment, although the apparatus of the mechanism holding the both sides of the cap CP is employ | adopted as the cover member holding | maintenance apparatus 310, it is not limited to this structure. Any holding mechanism may be used as long as it can hold the cap CP. For example, a holding mechanism by suction may be adopted.

  The lid member inspection / sorting device according to each embodiment of the present invention has been described above, but the embodiment disclosed this time should be considered as illustrative in all points and not restrictive. Therefore, the scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 100 Lid member supply apparatus, 101 Lid member supply guide main body, 110 1st supply guide groove, 120 2nd supply guide groove, 130 3rd supply guide groove, 140 Air blower apparatus, 150 Tracking restriction block, 200 Passed cover member receiving apparatus, 210 Main body, 211 Unloading guide groove, 212 Engagement claw, 300 Lid member inspection device, 301 Rotating disk, 310 Lid member holding device, 311 Base, 312 Block, 321 Fixed clamp, 322 Movable clamp, 322a Recess, 321b, 322b Joint convex part, 321c, 322c Jaw part, 321d, 322d Groove part, 322n inside, 323 abutment roller, 350 Open / close switching block, 351 Inlet side inclined surface, 352 abutting surface, 353 Outlet side inclined surface, 400 First reject Lid member receiving box, 500 Second unacceptable lid Receiving box, 600 frames, 700 First imaging device, 710 First imaging camera, 720 Light, 730 Fisheye lens, 750 First opening / closing switching device, 751 Switching lever, 751a Abutting surface, 752 Air cylinder, 752a Rod, 800 Second Imaging device, 810 second imaging camera, 820 light, 850 second opening / closing switching device, 910 first air blower device, 920 second air blower device, 1000 lid member inspection sorting device, P1 loading position, P2 first photographing position, P3 first 2 shooting position, P4 first reject product discharge position, P5 second reject product discharge position, P6 pass product discharge position.

Claims (6)

A lid member inspection and sorting device that inspects the outside and / or inside of the lid member and sorts it into an acceptable lid member and a failed lid member,
A lid member inspection device;
A lid member supply device for supplying the lid member to the lid member inspection device;
A lid member receiving device for receiving the lid member sorted by the lid member inspection device,
The lid member inspection device includes:
A turntable having a center axis of rotation in the horizontal direction, arranged in the vertical direction, and driven to rotate in at least one direction;
A holding state that holds the lid member so that the direction in which the axis of the lid member extends is substantially parallel to the rotation center axis, and a plurality of lids are provided at predetermined intervals along the outer peripheral edge of the turntable, and the lid A lid member holding device provided to be switchable between an open state to open the member;
An imaging device that images the lid member held by the lid member holding device from a horizontal direction;
A switching device that switches between a holding state and an open state of the lid member holding device;
A rotary drive of the rotating disk, the imaging device, and a control unit for controlling the operation of the switching device,
When viewed along the rotation direction of the rotating disk, the lid member supply device, the imaging device, the switching device, and the lid member receiving device are arranged in this order from the upstream side to the downstream side in the rotation direction. Placed in
The controller is
The lid member holding the lid member that is determined to be ejected as a result of the pass / fail judgment as a result of the pass / fail judgment as the result of the pass / fail judgment. A lid member inspection and sorting device that switches the device from a holding state to an open state by the switching device and discharges the lid member. The lid member holding device is
When viewed along the direction of rotation of the turntable,
A first clamp located on one side of the lid member on the upstream side in the rotational direction and fixedly provided on the rotating plate;
A second clamp located on the other side of the lid member on the downstream side in the rotational direction, and movably provided between a holding state for holding the lid member and an open state for opening the lid member; Including,
When the lid member supply device supplies the lid member to the lid member holding device, after moving the second clamp from the holding state to the open state, and after supplying the lid member to the lid member holding device, A mechanism for moving the second clamp from an open state to a holding state;
The lid member receiving device moves the second clamp from a holding state to an open state when receiving the lid member from the lid member holding device, and after receiving the lid member from the lid member holding device, Including a mechanism for moving the second clamp from the open state to the holding state;
The lid member inspection sorting apparatus according to claim 1. The imaging device
A first imaging device that images the lid member from one direction as seen from the direction in which the axis of the lid member extends;
When viewed along the direction of rotation of the turntable,
A second imaging device that is arranged on the downstream side of the first imaging device and that images the lid member from other directions as seen from the direction in which the axis of the lid member extends;
The switching device is
A first opening / closing switching device;
A second opening / closing switching device disposed downstream of the first opening / closing switching device when viewed along the rotation direction of the rotating disk,
The controller is
The first imaging device images the lid member, determines whether the lid member is acceptable, and holds the lid member holding device that holds the lid member determined to be unacceptable from the holding state by the first opening / closing switching device. Switch to the open state, discharge the lid member determined to be unacceptable,
The second imaging device images the lid member, determines whether the lid member is accepted or not, and holds the lid member holding device that holds the lid member determined to be unacceptable from the holding state by the second opening / closing switching device. The lid member inspection and sorting device according to claim 1 or 2, wherein the lid member that is determined to be unacceptable is switched to an open state and the lid member is discharged. The first opening / closing switching device further includes a first air blower device that blows gas toward the lid member,
The second opening / closing switching device further includes a second air blower device that blows gas toward the lid member,
The controller is
When the first opening / closing switching device is switched from the holding state to the open state, the first air blower device blows gas to the lid member determined to be unacceptable,
4. The lid member inspection classification according to claim 3, wherein when the second opening / closing switching device is switched from the holding state to the open state, gas is blown by the second air blower device to the lid member determined to be unacceptable. apparatus.   The lid member inspection and sorting device according to any one of claims 2 to 4, wherein the first clamp and the second clamp are provided with an axial positioning portion of the lid member. The lid member supply device includes:
The air blower apparatus which sprays the gas which accelerates | stimulates the movement to the said cover member holding | maintenance apparatus side with respect to the said cover member when supplying the said cover member to the said cover member holding | maintenance apparatus is further provided. The lid member inspection sorting apparatus according to any one of the above.

Images