JP2018183757A - Inspection equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide equipment that achieves the selection of a normal article by automatically and inexpensively determining the presence or absence of a shape abnormality such as a chip in outer shapes of a rectangular parallelepiped-shaped cake piece, an electric component and the like, which are supplied from a rotary feeder and the like.SOLUTION: Inspection equipment includes a guide that is made of a pair of L-shaped bodies comprising a side surface and an undersurface, notched parts on the side surface and the undersurface of the guide, four sets of floodlight parts and light receiving parts, and shape inspection means. Light is applied from the floodlight parts to positions of a side surface near a lower side and a side surface near an upper side when an inspection object with no shape abnormality is carried on the guide. The light is applied to the side surface near the lower side through the notched part. The absence of the shape abnormality is determined when the light from the floodlight parts is blocked, and the presence of the shape abnormality is determined when the light from any one of the floodlight parts is not blocked.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a shape inspection apparatus for confectionery pieces, electronic parts, and the like.

  In a rectangular parallelepiped shaped confectionery piece, an electrical component, or the like supplied from a rotary feeder or the like, it has been performed to automatically inspect the outer shape and select a normal shape product. In Patent Literature 1 and Patent Literature 2, an object to be inspected during transportation is picked up by a camera and the shape is inspected.

However, in these methods, in order to inspect each surface of the rectangular parallelepiped, it is necessary to inspect each surface, and the inspection objects cannot be adjacent to each other, and a gap is required between the inspection objects. there were.
Therefore, the system is expensive and expensive.

Japanese Patent No. 2519588 Japanese Patent No. 4143869

  Provide a device that automatically and inexpensively inspects abnormal shapes such as chips in the outer shape of a rectangular confectionery piece, electrical component, etc. supplied from a rotary feeder, etc., and sorts out normal products. This is the issue.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the invention according to claim 1 is an inspection apparatus for inspecting the shape of a rectangular parallelepiped object to be tested, which is an L-shaped body composed of a side surface and a lower surface. A pair of guides, a conveying means for moving the object to be inspected on the guide at a constant speed, a pair of notches having notches on the side surface and the lower surface of the guide, and the object to be inspected on the guide A light projecting portion that irradiates light through the notch portion with respect to each of the two side surfaces of the lower surface of the test object that are parallel to the transport direction when the object is transported, and facing the light projecting portion And a light projecting unit that irradiates light to the inspection object side surface passing positions in the vicinity of each of the two top surfaces of the inspection object parallel to the conveyance direction when the inspection object is conveyed on the guide. A light receiving unit installed opposite to the light projecting unit, When the inspection object passes on the id, when the inspection object blocks the light of the light projecting unit and the light receiving unit does not detect the light of the light projection unit, the inspection object is determined to have no shape abnormality, A shape inspection means for determining that the object to be inspected has a shape abnormality when the light receiving unit detects the light of the light projecting unit without blocking the light of any of the light projecting units by the object to be inspected. This is a characteristic inspection device.

  The invention according to claim 2 is characterized in that the notch on the guide is continuous with a semicircular notch on the side surface of the L-shaped body and a semicircular notch on the lower surface. The inspection apparatus according to claim 1.

  The invention according to claim 3 is the inspection apparatus according to claim 1 or 2, wherein a spot diameter of light of the light projecting unit is 0.1 mm or more and 1.0 mm or less.

  According to the present invention, an apparatus that automatically and inexpensively inspects an abnormal shape in an external shape such as a rectangular parallelepiped shaped confectionery piece, an electrical component, etc., supplied from a rotary feeder or the like, and selects a normal product. Can be provided.

It is a typical perspective view which shows the guide of a to-be-inspected object in one Example of the inspection apparatus of this invention. (A) is AA sectional drawing in FIG. 1, (b) is BB sectional drawing in FIG. FIG. 3 is a schematic perspective view for explaining a case where an object to be inspected is placed in a guide for carrying an object in the embodiment of the inspection apparatus of the present invention shown in FIG. (A) is AA sectional drawing in FIG. 3, (b) is BB sectional drawing in FIG. FIG. 5 is a diagram showing a schematic configuration of the inspection apparatus of the present invention. (A) is a figure explaining the behavior at the time of inspection when the inspection object has a normal shape in the inspection apparatus of the present invention, and (b) is a case where the inspection object is defective in the inspection apparatus of the present invention. It is a figure explaining the behavior at the time of an inspection. (A) is the schematic which shows the rotary feeder and guide which throws into a test | inspection object into the test | inspection apparatus of this invention, (b) is a top view which shows typically the mode of the test object located in a guide.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The present invention is an inspection apparatus for inspecting the shape of a rectangular parallelepiped-shaped inspection object, and the inspection object is supplied from a rotary feeder such as a dexter to a guide connected to the rotary feeder, and is in an adjacently aligned state. In this case, an object that moves at a constant speed is optically inspected.

  FIG. 7A is a schematic view showing a rotary feeder and a guide for loading the inspection object into the inspection apparatus of the present invention, and FIG.

  FIG. 1 is a schematic perspective view showing a guide for an object to be inspected in an embodiment of the inspection apparatus of the present invention. 2A is a cross-sectional view taken along line AA in FIG. 1, and FIG. 2B is a cross-sectional view taken along line BB in FIG.

  A rotary feeder 100 such as a dexter feeds the inspection object D through the discharge guide 101 to the guides 15 and 16 in a pressed state, and the inspection object D is adjacent and aligned on the guides 15 and 16. Provided is a conveying means that moves at a constant speed.

  The guides 15 and 16 to which the inspection object D is supplied from the rotary feeder 100 are composed of a pair of L-shaped bodies having side surfaces and a lower surface.

  The side surface 151 and the lower surface 152 of the guide 15 have a notch portion 10, the side surface 161 and the lower surface 162 of the guide 16 have a notch portion 11, and the notch portion 10 of the guide 15 and the notch portion 11 of the guide 16 have Relative.

  FIG. 5 is a diagram showing a schematic configuration of the inspection apparatus of the present invention.

When the inspection object having no shape abnormality is conveyed on the guides 15 and 16, the side of the inspection object D in the vicinity of each of the two sides parallel to the conveyance direction on the side of the lower surface of the inspection object D passes. There are light projecting portions 20 and 24 that irradiate light through the notches 10 and 11, and light receiving portions 21 and 25 that are installed to face the light projecting portions, respectively.

  Further, the positions of the side surfaces of the inspection object D in the vicinity of the two sides parallel to the conveyance direction on the side of the upper surface of the inspection object D when the inspection object having no shape abnormality is conveyed on the guides 15 and 16. There are light projecting units 22 and 26 for irradiating light, and light receiving units 23 and 27 installed to face the light projecting units, respectively.

  Next, the shape inspection means constituting the present invention will be described.

  FIG. 6A is a diagram for explaining the behavior at the time of inspection when the inspection object D has a normal shape in the inspection apparatus of the present invention, and FIG. 6B is the inspection apparatus D of the present invention. It is a figure explaining the behavior at the time of an inspection in the case of being defective.

  When the inspection object D passes through the guides 15 and 16, the inspection object D blocks the light from the light projecting units 20, 24, 22 and 26, and the light receiving units 21, 25, 23 and 27 transmit the light projecting units 20 and 24. , 22 and 26 are not detected, it is determined that the object to be inspected has no shape abnormality.

  When the light to be inspected D does not block the light from the light projecting parts 20, 24, 22, 26, and any of the light from the light projecting parts 20, 24, 22, 26 is detected by the light receiving parts 21, 25, 23, 27 The object to be inspected is determined to be abnormal in shape.

  However, this inspection is not performed when a side surface perpendicular to the transport direction passes while the inspection object D is adjacent. The object to be inspected does not have a perfect rectangular parallelepiped shape, each side has a curved surface, and the side surface perpendicular to the conveying direction of the object to be inspected D passes through the surface where the light projecting part and the light receiving part exist. When the light is emitted from the light projecting units 20, 24, 22 and 26, the light is received by the light receiving units 21, 25, 23 and 27 and the light receiving units 21, 25, 23 and 27 do not block the light from the inspected object D due to the curvature of the side corners. , 22 and 26 are detected. Therefore, when a side surface perpendicular to the conveyance direction of the inspection object D passes through the surface where the light projecting unit and the light receiving unit exist, the inspection is performed at a timing so that the shape inspection of the inspection object D is not performed. At the time of preparation for the inspection process, the object D is actually transported, and the interval between events in which the light of the light projecting units 20, 24, 22, 26 is detected by the light receiving units 21, 25, 23, 27 is measured. By doing so, the side passage time interval is determined.

  Before the inspection object D is conveyed, the light of the light projecting units 20, 24, 22, 26 is detected by the light receiving units 21, 25, 23, 27. When the first inspection object D passes through the surface where the light projecting unit and the light receiving unit exist, the light to be inspected D blocks the light from the light projecting units 20, 24, 22, 26, and the light receiving units 21, 25, 23 and 27 do not detect the light of the light projecting units 20, 24, 22, and 26. This time is set as the inspection start time. The shape inspection is performed at a time excluding a certain time section before and after the time that is an integral multiple of the side surface passage time interval from the inspection start time.

  In the cutout portion 10 of the guide 15, the cutout of the side surface 151 and the cutout of the lower surface 152 are each semicircular, and they are continuous. In the notch portion 11 of the guide 16, the notch on the side surface 161 and the notch on the lower surface 162 each have a semicircular shape, and they are continuous. The notch 10 of the guide 15 and the notch 11 of the guide 16 are opposed to each other. However, the shape of the notch in the notch is not limited to this.

  In order to detect the shape abnormality of the object to be inspected, it is desirable that the light spot diameter of the light projecting units 20, 24, 22, and 26 is 0.1 mm or greater and 1.0 mm or less.

According to the present invention, there is provided an apparatus that automatically and inexpensively inspects a shape abnormality in an outer shape such as a rectangular parallelepiped shaped confectionery piece, an electric component, etc., supplied from a rotary feeder, and selects a normal product. I was able to do it.

DESCRIPTION OF SYMBOLS 10 ... Notch part 11 ... Notch part 15 ... Guide 16 ... Guide 20 ... Light emission part 1
21... Light receiving unit 1
22 ... Projection unit 2
23: Light receiving part 2
24 .. Projection part 3
25. Light receiving part 3
26 .. Projection part 4
27. Light receiving part 4
DESCRIPTION OF SYMBOLS 100 ... Rotary feeder 101 ... Discharge guide 151 ... Guide side surface 152 ... Guide lower surface 161 ... Guide side surface 162 ... Guide lower surface D ... Inspection object F ... Chipping part

Claims (3)

An inspection apparatus for inspecting the shape of a rectangular parallelepiped inspection object,
A guide consisting of a pair of L-shaped bodies consisting of side and bottom surfaces;
A conveying means for moving the inspection objects on the guide at a constant speed in an aligned state;
A pair of notches having notches on the side and bottom surfaces of the guide;
A light projecting unit that irradiates light through the notch part with respect to the inspection object side surface passing position in the vicinity of each of the two lower surface sides of the inspection object parallel to the conveyance direction when the inspection object is conveyed on the guide; A light receiving unit installed opposite to the light projecting unit;
A light projecting unit that irradiates light to the inspected object side surface passing positions in the vicinity of each of the top two sides of the inspected object parallel to the conveying direction when the inspected object is conveyed on the guide, and opposed to the light projecting unit A light receiving unit installed
When the inspection object passes on the guide, the inspection object determines that the inspection object has no shape abnormality when the inspection object blocks the light of the light projection part and the light reception part does not detect the light of the light projection part. A shape inspection means for determining that the object to be inspected is abnormal in shape when the light receiving unit detects the light of the light projecting unit without blocking the light of any of the light projecting units;
An inspection apparatus comprising:   2. The inspection apparatus according to claim 1, wherein the notch portion on the guide is continuous with a semicircular notch on the side surface portion of the L-shaped body and a semicircular notch on the lower surface portion. .   The inspection apparatus according to claim 1, wherein a spot diameter of light of the light projecting unit is 0.1 mm or greater and 1.0 mm or less.

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