JP5232056B2 - Sponge member appearance inspection device - Google Patents

Description

  The present invention relates to an apparatus for inspecting the presence or absence of a cut on a sponge member.

  Conventionally, the appearance inspection of an object to be inspected has been automated, and the requirements for inspectable items have also diversified. As a conventional appearance inspection apparatus created in order to meet such a demand, there is one disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2003-107012). This appearance inspection device inspects the appearance defect of the seal member, which is an object to be inspected, and once the seal member conveyed by the belt conveyor reaches an imageable area of the imaging device, the belt conveyor is temporarily stopped. To do. Then, the machining actuator is activated and deformed so as to protrude the side surface of the stopped seal member, and the imaging device images the deformed state. According to this appearance inspection apparatus, it becomes possible to inspect defects in the inspection object that cannot be visually observed in a normal state, and visual inspection by an operator becomes unnecessary, thereby reducing man-hours and making inspection accuracy uniform. It becomes possible.

JP 2003-107012 A

  However, the appearance inspection apparatus has a problem that work efficiency is lowered due to the stop time because the inspection object is temporarily stopped and imaged.

  The present invention has been created in view of the above problems, and even if an object to be inspected cannot be detected unless it is deformed, the object to be inspected is deformed without being temporarily stopped. An object of the present invention is to provide a sponge member appearance inspection apparatus for inspecting the presence or absence of defects.

The present invention relates to a sponge member appearance inspection device for inspecting whether or not a sponge member as an inspection object is cut, a conveying means for placing and conveying the sponge member, and both ends of the sponge member being conveyed upward First deformation means for pressing from above, second deformation means for pressing the center of the sponge member pressed by the first deformation means from below, and imaging for imaging the sponge member deformed by the second deformation means from above The second deformation means is constituted by a ball roller that is always rotatable, and is disposed so as to protrude from the conveying surface of the sponge member. The conveying means is arranged in two upper and lower stages, and a reversing roller that sandwiches and reverses the sponge member that has reached here and is transferred to the lower conveying means may be attached to the final conveying end of the upper conveying means. Good.

The sponge member appearance inspection apparatus according to the present invention can automatically inspect even a cut that cannot be confirmed for its presence unless it is deformed without relying on the visual inspection of the inspector. Furthermore, since the conveyor belt can be rotated and deformed in a state where the sponge member is conveyed, the presence or absence of cuts on the sponge member can be inspected without lowering the working efficiency. Further, the sponge member can be greatly deformed, that is, reliably deformed and the presence or absence of a cut is clarified, so that the reliability of the imaging result by the imaging means is improved. Furthermore, the sponge member inspection apparatus of the present invention can smoothly deform the sponge member. In the sponge member inspection apparatus of the present invention, the area blocked by the first deformation means on the surface of the sponge member is reduced. Therefore, the imaging means can image the surface over a wide range, and the possibility of missing a cut is reduced. The sponge member appearance inspection apparatus of the present invention can inspect both surfaces of the sponge member with a configuration that saves space and has a small number of parts.

It is a block diagram of a sponge member appearance inspection apparatus. Example 1 It is a plane view principal part enlarged view of a sponge member external appearance inspection apparatus. Example 1 It is a front view principal part expanded sectional view of a sponge member appearance inspection apparatus. Example 1 It is a plane view principal part enlarged view of a sponge member external appearance inspection apparatus. (Example 2) It is a front view principal part expanded sectional view of a sponge member appearance inspection apparatus. (Example 2) It is a plane view principal part enlarged view of a sponge member external appearance inspection apparatus. (Example 3)

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a sponge member appearance inspection apparatus (hereinafter referred to as an appearance inspection apparatus), which inspects for the presence or absence of defects (cuts or the like) in a puff P of a cosmetic tool that is an example of a sponge member. This appearance inspection apparatus 1 is arranged in two upper and lower stages, and is an example of the conveying means 10A, 10B that conveys the puff P, and the first deformation means described in the claims. A roller 20 that is pressed and deformed, and a roller 20 that rolls, a ball roller 30 that rolls by pressing the puff P from below as an example of the second deforming means described in the claims, and a puff P Imaging means 40 and 41 for imaging are provided. In FIG. 1, for the sake of convenience, the leader line of the part number P is omitted for the puffs P illustrated in the plurality of conveying means 10 </ b> A and 10 </ b> B.

  As shown in FIGS. 1 to 3, the conveying means 10 </ b> A and 10 </ b> B are rotatably supported by bearings (not shown) attached to the frame 11, and rotate as the drive source (not shown) is driven. A driving shaft (not shown) and a rotating shaft 13 that is rotatably supported by a bearing attached to the frame 11 are also provided. Each of the driving shaft and the rotating shaft 13 includes a main pulley. 14, A driven pulley 15 is rotatably attached as a unit. A rubber conveyor belt 16 is wound around the main driving pulley 14 and the driven pulley 15. Then, the conveyor belt 16 and the driven pulley 15 rotate with the rotation of the main pulley 14, and the puff P placed on the conveyor surface of the conveyor belt 16 is conveyed.

  As shown in FIGS. 2 and 3, the roller 20 is pivotally supported on a roller mounting plate 21 mounted on the frame 11. The roller 20 is configured to sandwich the puff P and roll with the rotation of the conveyor belt 16, and presses both ends of the puff P placed on the conveyor belt 16 and conveyed from above. The puff P is arranged on the conveyance path so as to roll. Further, a total of four rollers 20 are arranged, two in series at the end on the frame 11 side, and two in series at the end on the other frame 11 side. A predetermined interval is provided between the rollers 20 facing in the parallel direction. Therefore, since the roller 20 does not block the imaging by the imaging unit 40 disposed above the puff P, the imaging unit 40 can image the surface of the puff P. The rollers 20 are attached to the shaft 20a with a backlash, and are configured to be able to cope with a change in the thickness of the puff P. As a means for dealing with the thickness of the puff P, a configuration in which a notch is formed in the roller mounting plate 21 in the thickness direction of the puff P in place of the backlash configuration so that the height position of the roller 20 can be adjusted. It may be.

  As shown in FIG. 3, the ball roller 30 is disposed so as to roll by pressing the central portion of the puff P pressed against the roller 20 from below. The ball roller 30 is disposed below the conveyor belt 16 and is configured to press the puff P sandwiched between the rollers 20 from the back surface via the conveyor belt 16. That is, the ball roller 30 is arranged so that the upper part protrudes from the conveyance surface, and is arranged so as to press a lower surface of the rubber conveyance belt 16 so that a part of the conveyance belt 16 rises. And if the puff P passes through here, it will protrude from the lower surface. Here, the ball roller 30 is configured such that a main ball 33 is accommodated in a seat 31 having a curved hole via a sub ball 32, and the main ball 33 rolls on the sub ball 32 in a 360 degree direction. Yes. By using the ball roller 30 having such a configuration, compared with a roller that can rotate only in one direction, the replacement operation of the conveyor belt 16 is facilitated, or the conveyor belt 16 that contacts the main ball 33 is smoothly fed out. It becomes possible.

  As shown in FIG. 1, the image pickup means 40 and 41 are CCD image sensor cameras, pick up images of the surface of the puff P located below the illumination means 42 and 43, and image data is judged means (not shown). And whether or not there are pinhole scratches and cuts is determined. In addition, two imaging means 40 are installed above the conveying means. One imaging means 41 is for imaging the presence or absence of a pinhole scratch on the surface of the puff P, and this pinhole scratch is a defect that can be recognized without deforming the puff P. Therefore, the imaging means 41 is disposed above the puff P so as to take an image before or after the puff P is sandwiched between the roller 20 and the conveyor belt 16. The other imaging means 40 is for imaging a recognizable cut by deforming the puff P. The surface of the puff P deformed by being sandwiched between the roller 20 and the ball roller 30 is placed between the rollers 20 from above. It arrange | positions in the position which can image through a clearance gap.

  The conveying means 10A and 10B are arranged in two upper and lower stages as shown in FIGS. At the final conveyance end of the upper conveyance means 10A, a reversing roller 17 for transferring the puff P to the lower conveyance means 10B is pivotally supported by a reversing roller mounting plate 18, and a drive source (not shown) is provided. It is comprised so that it may rotate with a drive. The reversing roller 17 is disposed with a predetermined gap from the final conveyance end of the conveying means 10A, and a puff P is sandwiched in the gap, and the lower roller 17 rolls as the reversing roller 17 rolls. It is configured to be transferred to the transport means 10B. The lower transport unit 10B is configured to rotate in the direction opposite to the transport direction of the upper transport unit 10A. Therefore, the puff P that has passed through the reversing roller 17 is smoothly reversed and placed on the lower conveying means 10B.

  As shown in FIG. 1, the conveying means 10A is connected to a rectilinear feeder 2 capable of conveying the puff P by the vibration of the vibration device 3, and the puff P sequentially supplied from a ball feeder (not shown). It is configured to be conveyed to the conveying means 10 </ b> A through the linear feeder 2 and sequentially conveyed in the direction of arrow Y. In the puff P conveyed by the conveying means 10A, first, the imaging means 41 is inspected for surface pinhole scratches. Subsequently, the surface of the puff P deformed by being pressed by the roller 20 and the ball roller 30 is inspected by the imaging means 40. As a result of the imaging means 40 and 41, the puff P determined to be defective is kicked out by the defective product kicking unit 4 and discharged to the defective product discharge port 5 installed on the side surface of the conveying means 10A. On the other hand, the puff P having no flaws on the front surface is transferred so that the back surface faces up on the transport unit 10B by the action of the reversing roller 17 and the transport unit 10B described above in order to inspect the back surface. .

  Here, the upper transport unit 10A is configured so that the length in the longitudinal direction is shorter than the lower transport unit 10B. For this reason, the upper transport means 10A does not get in the way of imaging the puff P transported by the lower transport means 10B. Therefore, if the imaging means 40, 41, the roller 20 and the ball roller 30 are arranged in the lower conveyance means 10B as in the upper conveyance means 10A, the puff P can be imaged and inspected. As a result of these imaging means, the puff P having scratches on the back surface is kicked out by the kicking unit 4 and discharged to the defective product discharge port 5 installed on the side surface of the conveying means 10B, as in the surface inspection.

  According to the appearance inspection apparatus of the present invention, the roller 20 presses and deforms the puff P even if it is a cut that cannot be confirmed if it is not deformed. Is configured to image. Therefore, it is possible to automatically inspect without depending on the visual inspection of the inspector. Further, the roller 20 rolls on the surface of the puff P, and the puff P is pressed and deformed along with this rolling, so that the conveying means 10A and 10B are always driven to deform without stopping the puff P. Therefore, it is possible to inspect for the presence or absence of cuts on the puff P without reducing the work efficiency.

  Further, the ball roller 30 is disposed so as to press the puff P from below in a state where the puff P is sandwiched between the roller 20 and the conveying belt 16. Therefore, the puff P can be greatly deformed, or even a relatively hard puff P can be deformed. That is, since the puff P is reliably deformed and the presence or absence of the cut is clarified, the reliability of the imaging result by the imaging means 40 is improved.

  The embodiment shown in FIGS. 4 and 5 is an appearance inspection apparatus using transporting means 10'A and 10'B instead of the transporting means 10A or 10B. The conveying means 10'A and 10'B have two conveying belts 16a and 16b, and the conveying belts 16a and 16b are arranged so as to rotate in the same direction at a predetermined interval. It is wound around a driven pulley 15. The ball roller 30 is disposed so as to protrude from the gap between the conveyor belts 16a and 16b. On the other hand, the puff P is placed so as to straddle between the conveyor belts 16a and 16b, and is conveyed when the conveyor belts 16a and 16b rotate as the main pulley 14 is driven. When the puff P reaches the ball roller 30 and the roller 20, the puff P is pressed and deformed. According to the appearance inspection apparatus including the transport unit 10 ′ having such a configuration, although the number of parts is increased, the replacement operation of the transport belts 16a and 16b is compared with the transport units 10A and 10B described in the first embodiment. It becomes easy.

  In the embodiment shown in FIG. 6, the position of the roller 20 shown in the first embodiment is changed, and the roller 20 ′ pivotally supported by the frame 11 is arranged so as to roll by pressing the puff P from the side surface. Has been. In such a configuration, since the puff P is not pressed from above, that is, movement in the upward direction is not restricted, the ball roller 30 is used to perform the aligned conveyance when the puff P is deformed. It is better to remove it. According to the appearance inspection apparatus including the roller 20 ′ arranged in this manner, it is possible to image the entire upper surface of the puff P and reduce the number of parts.

1 Sponge member appearance inspection device
2 Straight feeder
3 Vibration device
4 Defective product kicking unit
5 Defective product discharge port 10A, 10B Conveying means 11 Frame 13 Rotating shaft 14 Driving pulley 15 Driven pulley 16 Conveying belt 17 Reverse roller 18 Reverse roller mounting plate 20 Roller 20a Shaft 21 Roller mounting plate 30 Ball roller 31 Seat 32 Sub Ball 33 Main ball 40, 41 Imaging means 42, 43 Illumination means

Claims (2)

A sponge member appearance inspection device for inspecting the presence or absence of a cut of a sponge member as an inspection object ,
A conveying means for placing and conveying the sponge member, a first deformation means for pressing both ends of the conveyed sponge member from above, and a center of the sponge member pressed by the first deformation means from below. Second deformation means, and imaging means for picking up an image of the sponge member deformed by the second deformation means from above,
The sponge member appearance inspection apparatus, wherein the second deforming means is constituted by a ball roller that is always rotatable and is arranged so as to protrude from the conveying surface of the sponge member. The conveying means is arranged in two upper and lower stages, and a reversing roller is attached to the final conveying end of the upper conveying means so that the sponge member that reaches here is sandwiched and reversed and transferred to the lower conveying means. The sponge member appearance inspection apparatus according to claim 1 .

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