JP3059715B1 - Appearance inspection device for compression molded products - Google Patents

Abstract

Kind Code: A1 The size of a tablet to be inspected is photographed when the appearance of the tablet is photographed and the concave portion of a roller for holding the tablet corresponds to the tablet when inspecting an abnormality in the appearance by image processing. Each time the roller changes, the roller must be replaced, and a plurality of rollers need to be prepared, which increases the maintenance cost. The compression molded article manufactured by compressing powder has holding means for removably holding a compression molded article in a predetermined posture with its surface exposed, and the compression molded article held by the holding means is provided. In a compression molded product appearance inspection apparatus for photographing the external appearance and determining the quality of the appearance of the compression molded product, the holding means has a plurality of holding portions of the same shape on the outer peripheral surface, and the compression supplied to each holding portion. The configuration is such that the molded article moves in the holding section by its own weight and is held at a predetermined position of the holding section according to the outer shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for inspecting the appearance of a compression-molded product for inspecting the appearance of a product formed by compressing powder such as tablets and confectionery.

[0002]

2. Description of the Related Art Conventionally, for example, a tablet is inspected for abnormalities such as a stained surface, a chipped portion, or even a deformed appearance, and a normal tablet is inspected. Only try to ship as a product. In such an inspection of the appearance of the compression-molded product, the compression-molded product is photographed with a camera, and the photographed image is subjected to image processing to determine the quality.

That is, in this type of visual inspection apparatus, a tablet to be inspected is provided with, for example, a plurality of recesses corresponding to the size of the tablets on the surface of a cylindrical drum, and the tablets are placed in the recesses to move the drum horizontally. A large number of tablets are continuously photographed by a camera while being rotated in step, and an image of the photographed tablets is image-processed to inspect for abnormalities. In such a visual inspection device, at least to inspect abnormalities on the front and back surfaces of the tablet, first inspect the front surface, then turn the tablet upside down and expose the back surface, and inspect the back surface. I have to.

[0004]

By the way, tablets include:
There are various shapes and their sizes are also different. If the concave portion of the drum is made large in order to cope with such a tablet, since the tablet does not stand still in the concave portion, a problem that an appropriate tablet image cannot be taken may occur. is there. In other words, if the concave portion of the drum is made large so that various tablets can be inserted, if the tablet to be inspected is smaller than the concave portion of the drum, the tablet moves in the concave portion in accordance with the rotation of the drum, and performs image processing. This makes it impossible to obtain an image of a tablet suitable for use.

[0005] In order to solve such a problem, it is conceivable to manufacture the inner portion of the concave portion of the drum substantially equally in correspondence with the outer dimensions of each tablet. However, if the concave portion is made to correspond to the size of the tablet, it is necessary to replace the drum each time according to the size of the tablet to be inspected. Therefore, the work time required for the inspection increases, and the maintenance cost is high because a plurality of drums must be prepared. Moreover, since the concave portion corresponds to the external dimensions of the tablet, it is not easy to supply the tablet to the concave portion, and when the tablet is supplied, the surface is scratched, or the tablet is supplied with a device for supplying the tablet. There was a case where it was pinched between and crushed.

[0006] For such a drum type visual inspection device, there has been proposed a device in which a tablet is sandwiched between two belts and the belt is moved to continuously photograph the tablets. . However, when the tablet is transported by such a belt, when the tablet is pinched, if the tablet is tilted, the captured image does not accurately correspond to the surface of the tablet, and the surface is abnormal due to such an image. Judgment, an incorrect inspection result was created.

An object of the present invention is to solve such a problem.

[0008]

In order to achieve the above object, the present invention takes the following measures. That is, in the appearance inspection apparatus for a compression-molded product according to the present invention, the holding means for holding the compression-molded product includes a holding portion configured to move the compression-molded product by its own weight. When supplied, the compression-molded product is held at a predetermined position.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention has a holding means for holding a compression-molded article manufactured by compressing powder in a predetermined posture in a state where the surface thereof is exposed. In a compression molded product appearance inspection device that photographs the appearance of a held compression molded product to determine the quality of the appearance of the compressed molded product, the holding unit is rotatable at a predetermined angle from horizontal.
It is supported, the outer surface is approximately triangular in plan view, and the inner method is reduced
Has a plurality of holding parts of the same shape arranged with the tip facing downward in the inclined direction, and the compression molded product supplied to each holding part moves inside the holding part by its own weight and holds it according to its outer shape An appearance inspection device for a compression-molded product, which is held at a predetermined position of a part.

According to this structure, the holding means for detachably holding the compression-molded product has a holding portion for holding the compression-molded product in accordance with the outer shape of the compression-molded product. Since the compression-molded product moves to a predetermined position under its own weight and is held in the unit, it is possible to always hold the compression-molded product having a different shape at an appropriate position for determining the quality of the appearance. . For this reason, when the size of the compression-molded product to be inspected changes, it is not necessary to replace the holding means each time, and compression-molded products of various sizes can be inspected.

The holding means comprises two cylinders which are driven to rotate in synchronization with each other in opposite directions, and the compression-molded product is transferred from one cylinder to the other cylinder, and the back of the compression-molded product is transferred. As long as the appearance of the facing surface can be photographed, it is possible to determine the appearance of the front surface of the compression-molded product held in one of the cylinders, and to continuously determine the appearance of the back surface. Become.

The holding means has a substantially triangular shape in plan view on the surface,
And a cylindrical body having a holding portion composed of a concave part having a depth dimension substantially equal to the height dimension of the compression-molded product, and rotating the cylindrical body in a state in which the inner diameter of the concave part is inclined downward so as to be reduced. If the compression-molded product in the recess moves by its own weight in the downward apex direction by its own weight, the compression-molded product is held by two sides of the recess. Becomes possible. Since the cylindrical body having such a concave portion is rotated by a rotation shaft that rotatably supports the cylindrical body in an inclined state, the compression molded product can be easily moved to the holding position. Further, since the recess is substantially triangular, it is easy to put the compression-molded product into the recess, and it is possible to prevent the compression-molded product from being damaged by colliding with the recess.

The cylindrical body includes an outer cylinder having a penetrating portion for forming a concave portion, and an inner cylinder disposed inside the outer cylinder and closing the penetrating portion on the inner surface side of the outer cylinder. No. According to such a configuration, the processing of the cylindrical body is facilitated, and the concave portion can be easily formed. If the above-mentioned cylindrical body has an air passage communicating with the concave portion and the compressed molded product in the concave portion is sucked by at least decompressed air supplied to the air passage, the compressed molded product held in the concave portion Can be held without rattling, and when the holding means is composed of two cylinders, when the holding means is composed of two cylinders,
A complicated mechanism for photographing the front and back surfaces of the compression molded product can be omitted.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The visual inspection device comprises two bowl feeders 2 fixed to the upper end of the main frame 1, and upper and lower rollers 3, which are holding means for removably holding a compression molded product, such as a tablet P, supplied from the bowl feeder 2. 4, a drive motor 5 for rotating and driving the lower rollers 3, 4 thereon,
An illumination head 6 is provided as a light source for irradiating the tablets P held by the upper and lower rollers 3 and 4 with light for illumination, and a detection camera C for photographing the tablets P emitted to the illumination head 6.

The bowl feeder 2 is disposed so as to be mirror-symmetrical when viewed from above, and has a bowl portion 21 having an opening for supplying the tablets P at the center of the upper surface thereof, and a vibration in the bowl portion 21 due to vibration. There are provided two supply pipes 23 for guiding the transported tablets P to the upper roller 3. This supply pipe 2
3 corresponds to the end side position where the inner dimension of the tablet receiving pocket 81 provided on the upper roller 3 is large.
Each bowl feeder 2 is positioned 2
The tablets P can be supplied at the same time. Therefore, four tablets P are simultaneously transferred to the upper roller 3 by the two bowl feeders 2.
It is supplied to.

The upper roller 3 and the lower roller 4 have the same shape and a cylindrical shape, and have an inner cylinder 7, an outer cylinder 8 fitted outside the inner cylinder 7, and both ends of the inner cylinder 7. The main frame 1 includes a shaft support plate 9 to be closed and a rotating shaft 10 that passes through the center of the shaft support plate 9. Inclined frame 1a
Are the respective rotating shafts 10 of the upper roller 3 and the lower roller 4.
Are rotatably supported so as to be inclined at a predetermined angle, for example, 30 ° from the horizontal.

The inner cylinder 7 is formed of a cylindrical body, and has a plurality of air passages 71 in its wall. The air passage 71 includes a lateral passage 71 a provided at a predetermined angle in a circumferential direction from one end of the inner cylinder 7 along the surface of the inner cylinder 7, and a lateral passage 71 a
And a vertical passage 71b penetrating from the front side to the peripheral side face, for example, 24 are provided. The lateral passage 71a is provided with an outer cylinder 8 described later.
Tablet receiving pocket 81 as a holding portion provided on the surface of
The vertical passage 71b corresponds to the number of the tablet receiving pockets 81 arranged in each row. At the other end of the inner cylinder 7, a step 72 for fitting the outer cylinder 8 is formed.
A key groove 73 is provided as a detent.

The outer cylinder 8 is a bottomless cylindrical body having a wall whose thickness is about the thickness of the tablet P. The inner diameter of the outer cylinder 8 substantially coincides with the outer shape of the inner cylinder 7, and the wall has a through hole penetrating the wall. Part 81k
Is provided. When the through portion 81k is integrated with the inner cylinder 7, the opening on the inner surface side is closed by the inner cylinder 7 to form a concave portion, and the tablet receiving pocket 81 is formed. The penetrating portion 81k and, therefore, the tablet receiving pocket 81 has a substantially isosceles triangular shape in plan view, and the tip 81a whose inner dimension decreases is arranged in one direction. Four lines on the line are arranged in a line,
Rows are provided. As shown in FIG. 7, the tablet receiving pocket 81 can hold a small-diameter tablet P in the vicinity of the distal end 81a thereof, and can be positioned after the upper roller 3 and the lower roller 4 are mounted. The inner dimensions are such that a large-diameter tablet P can be held in the vicinity of the end 81b. In other words, the tablet receiving pocket 81 has a sufficient inner portion when the tablet P is supplied, and the tablet P easily enters the tablet receiving pocket 81 at the time of supply. A key groove 82 corresponding to the key groove 73 of the inner cylinder 7 is provided at an end of the outer cylinder 8 corresponding to the other end of the inner cylinder 7.

In such a configuration, the upper roller 3 and the lower roller 4 are such that the inner cylinder 7 is fitted around the outer periphery of the inner cylinder 7, and the keys are fitted into the key grooves 73, 82, so that the inner cylinder 7 and the outer cylinder 8 are Are rotated integrally, and both ends of the inner cylinder 7 are closed by the shaft support plate 9. In the state where the inner cylinder 7 and the outer cylinder 8 are combined as described above, the vertical passage 71b opens near the front end 81a of the tablet receiving pocket 81. The upper roller 3 is provided with an upper air distributor 11 so that suction air or jet air can be supplied to the lateral passage 71a.
However, the lower air distributor 12 is attached to the lower roller 4 such that the lower air distributor 12 is in close contact with the lower shaft support plates 9, 9 via a bearing.

Since the upper and lower air distributors 11 and 12 are mounted by bearings, they remain stationary with respect to the upper roller 3 and the lower roller 4 even when the rotating shaft 10 rotates.
Does not rotate. On the surfaces of the upper and lower air distributors 11 and 12 that are in close contact with the inner cylinder 7, arc-shaped grooves 11a and 12a and three through holes 11b, which communicate with the lateral passage 71a at a predetermined rotation position, are provided.
11c, 11e, 12b, 12c, and 12e are provided. Grooves 11a, 12a of upper and lower air distributors 11, 12
Has a length corresponding to an arc having an angle of, for example, about 105 ° with respect to the centers of the upper and lower air distributors 11 and 12. The grooves 11a and 12a are provided with suction openings 11d and 3d at three locations so that suction air and jet air can be supplied from the surface opposite to the surface on which the grooves 11a and 12a are provided.
12d is provided. The suction openings 11d and 12d are provided at an angle of, for example, 30 °. Upper air distributor 11
Is located at the 12 o'clock position of the watch when viewed from the front, i.e., the position directly above the center in the radial direction from the center, and
The groove 11a is located near the three o'clock position in the clockwise direction, that is, near the six o'clock position from a position about 75 ° away from the suction through hole 11b, ie, the suction through hole 1
It is provided up to a position near a blow-through hole 11c having the same diameter as 1b. The lower air distributor 12 is provided with a through hole 12b for suction, a groove 12a, and a through hole 12c for blowing out at positions where the upper air distributor 11 is mirror-symmetrical when viewed from the front. . Through hole 1 for blowing out
1c and 12c communicate only with the lateral passages 71a and 71a communicating with the tablet receiving pocket 81 located at the lowermost position. The through holes 11e and 12e are for blowing out the jet air for cleaning the inside of the tablet receiving pocket 81, and are 30 to 45 degrees in the rotational direction from the through holes 11c and 12c.
It is provided at a position slightly apart.

The upper roller 3 and the lower roller 4 rotate in opposite directions in synchronization with each other by a gear 10a provided at the upper end of each of the rotating shafts 10, 10.
A drive motor 5 for rotational drive is connected to the lower end of the lower roller 4. Therefore, when the lower roller 4 is rotationally driven, the rotational driving force is transmitted to the upper roller 3 by the gear 10a with the rotation, and the upper roller 3 is rotated. The upper roller 3 and the lower roller 4 are connected to a tablet receiving pocket 8.
A gap corresponding to the thickness of the surface of the tablet P slightly protruding from 1 is provided with a gap therebetween, and the front end 81a and the rear end 81b of the opposing tablet receiving pocket 81 coincide with each other in the vertical direction. In addition, the lower roller 4 is disposed slightly below the rotary shaft 10. With such an arrangement of the upper roller 3 and the lower roller 4, the upper roller 3
Thus, the tablet P can be moved without damage to the lower roller 4.

With respect to the upper roller 3 and the lower roller 4, two illumination heads 6, 6 are arranged so as to irradiate a row of tablet receiving pockets 81 with light. That is, the light reaches the upper roller 3 from the tablet receiving pocket 81 located at the uppermost position to the tablet P in the tablet receiving pocket 81 at a position rotated by a predetermined angle, for example, 60 ° about the rotation axis 10. For example, two illumination heads 6 and 6 are provided at positions separated from each other by about 30 °, for example. In order to easily adjust the convergence point of the luminous flux to the tablet P with respect to the illumination heads 6 and 6 arranged as described above, light diffusion plates 6 a and 6 a are provided near the upper roller 3 and the lower roller 4.
Is arranged. The diffusing plates 6a, 6a convert light incident from the illumination heads 6, 6 into substantially parallel light so that the surface of the tablet P in the tablet receiving pocket 81 is irradiated with light substantially uniformly. The illumination heads 6 and 6 and the diffusion plate 6
A cover 6b is provided to prevent light other than the illumination light from entering the space between a and 6a, that is, the optical path of the illumination light. By using such diffusion plates 6a, 6a, the luminous flux emitted from the illumination heads 6, 6 can be easily adjusted to the tablet receiving pocket 81.

On the other hand, the detection camera C is provided on a line that bisects the angle formed by the optical axes of the two illumination heads 6 and 6 so that the surface of the tablet P is substantially parallel to the lens surface. It is arranged in. The detection camera C is, for example, a CCD camera capable of performing color photographing, and simultaneously photographs the tablets P held in the row of tablet receiving pockets 81. The image signal obtained by the photographing is compared with an image of the reference tablet P in an image processing device (not shown), and the photographed tablet P
It is determined whether or not there is an abnormality. The image processing device itself
A configuration well known in this field can be widely used.

In such a configuration, the tablet P to be inspected is
Are supplied to the bowl portions 21 of the respective bowl feeders 2 and are sent to the supply pipe 23 by vibration. The tablets P sent from the supply pipe 23 fall into the tablet receiving pocket 81 of the upper roller 3 while being sucked by the suction air from the suction through hole 11b of the upper air distributor 11. Here, the tablet receiving pocket 81 has a substantially triangular shape in plan view,
The upper end thereof, that is, the rear end 81 at which the inner method is substantially maximized
The tablet P falls near the position b. Therefore, tablet P
Since the upper roller 3 is inclined, it moves in the tablet receiving pocket 81 by its own weight, contacts the inner wall of the tablet pocket 81 at a position corresponding to the outer diameter of the tablet P, and is held at two points. That is, as shown in FIG. 7, for example, in the case of a small-diameter tablet P, after dropping into the tablet receiving pocket 81, the tip 81 a moves along the inner wall located below the tablet receiving pocket 81.
The tablet moves in the side, that is, in the downward direction, and is held at a position L1 near the lower end 81 of the tablet receiving pocket 81. In the case of a tablet P having a large outer diameter, the tablet
1, the tablet P is held at a position L2 near the rear end 81b of the tablet receiving pocket 81.

In this manner, the tablets P are sequentially supplied from the bowl feeder 2 to the tablet receiving pocket 81, and when the upper roller 3 rotates and the tablet receiving pocket 81 reaches a predetermined position, the light from the illumination heads 6, 6 is emitted. Is irradiated, one surface of the tablet P is photographed by the detection camera C under sufficient illumination light, and an abnormality is determined based on the photographed image. Thereafter, when the tablets P for which imaging has been completed reach a predetermined position around the rotation axis 10, each tablet P is sucked by the reduced-pressure air supplied to the groove 11a. Thereby, even if the tablet receiving pocket 81 moves to a position lower than horizontal, the tablet receiving pocket 81 is held by the tablet receiving pocket 81.

Thereafter, the tablet P moves to a substantially lowermost position while being sucked by the rotation of the upper roller 3, and is pushed out of the tablet receiving pocket 81 by the pressurized air supplied to the through hole 11c at the lowermost position. The tablet receiving pocket 8 of the lower roller 4 that rotates in the opposite direction in synchronization with the upper roller 3
Move to 1. In this case, the upper roller 3 and the lower roller 4 rotate while the surfaces of the outer cylinders 8 are separated by a distance corresponding to the curved thickness of the surface of the tablet P. When the pocket 81 is dropped by being sucked by the suction air supplied to the through hole 12c, the back surface is exposed.

Then, as the lower roller 4 rotates, the tablets P
Reaches a predetermined position, similarly to the upper roller 3, the detection camera C takes an image of the back surface of the tablet P to detect the presence or absence of an abnormality. Thereafter, the tablet P is sucked by the suction air supplied to the groove 12a and conveyed downward. Is done. Thereafter, when the tablet P reaches the lowermost position, for the tablet P in which an abnormality is detected,
It falls as it is and is discharged to the abnormal tablet tray Ta. On the other hand, a normal tablet is guided by a sorting guide mechanism A which is reciprocally movable between just below the lower roller 4 and the normal tablet tray Tn in conjunction with the inspection result, and is discharged to the normal tablet tray Tn.

As described above, the tablet receiving pockets 81 of the upper roller 3 and the lower roller 4 have a substantially triangular shape in plan view,
Since the tablet P falls from the supply tube 23 or the tablet receiving pocket 81 of the upper roller 3 to a large position inside the tablet receiving pocket 81, the tablet P easily enters the tablet receiving pocket 81 regardless of the size. . Therefore, it is possible to prevent a problem that the tablet P is, for example, pinched and broken by the supply pipe 23 or the upper roller 3 and the lower roller 4. Further, even if there is an abnormality in the tableting and the tablet P falls into the tablet receiving pocket 81 and collapses and adheres thereto, the ejection introduced into the tablet receiving pocket 81 through the through holes 11e and 12e. Since the tablet receiving pocket 81 is blown off by air, the tablet receiving pocket 81 can always maintain a clean state.

The upper roller 3 and the lower roller 4 rotate with their rotation shafts 10 inclined at a predetermined angle from the horizontal, so that
Even if the outer diameter of the tablet P changes, the tablet P moves inside the tablet receiving pocket 81 by its own weight, and the peripheral side wall of the tablet P and the tablet receiving pocket 81 move.
The tablet P is held at the position where it contacts the inner wall at two points, and the tablet P does not move or rattle minutely in the tablet receiving pocket 81. Therefore, the tablet P is stored in the tablet receiving pocket 81.
And the surface of the tablet P can be photographed satisfactorily.

In addition, the upper roller 3 and the lower roller 4 having the same configuration are combined and rotated in opposite directions to change the direction of the tablet P with respect to the detection camera C without intervening other devices. Therefore, the front and back surfaces of the tablet P can be easily photographed by the detection camera C. Therefore, the front and back surfaces of the tablets P having different outer diameters can be continuously inspected without exchanging the upper roller 3 and the lower roller 4. Further, the tablet P is transferred from the upper roller 3 to the lower roller 4.
When moving the tablet P, the tablet P is urged on the one hand and the tablet P is sucked on the other hand, so that the tablet P can be reliably moved from the upper roller 3 to the lower roller 4.

The present invention is not limited to the embodiment described above. In addition, the configuration of each unit is not limited to the illustrated example, and various modifications can be made without departing from the spirit of the present invention.

[0032]

As described above, according to the present invention, the holding means for detachably holding the compression-molded article has the holding section for holding the compression-molded article in accordance with the outer shape of the compression-molded article. ,
Since the compression-molded product moves to a predetermined position under its own weight and is held in the holding portion, even if the compression-molded product has a different shape, it can be always held at an appropriate position for judging the appearance. . For this reason, when the size of the compression-molded product to be inspected changes, it is not necessary to replace the holding means each time, and compression-molded products of various sizes can be inspected. Therefore, since it is not necessary to prepare a plurality of types of holding means, inspection costs and maintenance costs can be reduced.

Further, the holding means comprises two cylindrical bodies which are driven to rotate synchronously in opposite directions to each other, and the compression molded article is transferred from one cylindrical body to the other cylindrical body, and the compression molded article is transferred. If the appearance of the surface facing the back can be photographed, it is possible to determine the appearance of the front surface of the compression-molded product held by one of the cylinders, and continuously determine the appearance of the back surface. it can.

Further, the holding means has a cylindrical body having a concave portion on the surface thereof having a substantially triangular shape in plan view and having a depth dimension substantially equal to the height dimension of the compression-molded article; A rotating shaft that is rotatably supported in a state in which the inner method is inclined downward in the downward direction,
If the compression-molded article that has entered the recess moves by its own weight in the downward vertex direction, the compression-molded article can be held by two sides of the recess. Since the cylindrical body having such a concave portion is rotated by a rotating shaft rotatably supporting the inclined body in an inclined state, the compression molded product can be easily moved to the holding position. Further, since the recess is substantially triangular, it is easy to put the compression-molded product into the recess, and it is possible to prevent the compression-molded product from being damaged by colliding with the recess. In this case, the supply of the compression-molded product can be facilitated by supplying the compression-molded product to a large position in the recess.

The cylindrical body may include an outer cylinder having a penetrating portion for forming a concave portion, and an inner cylinder disposed inside the outer cylinder and closing the penetrating portion on the inner surface side of the outer cylinder. In this case, the processing of the cylindrical body is facilitated, and the concave portion can be easily formed. If such a cylindrical body has an air passage communicating with the recess, the compression molded product in the recess is sucked by at least reduced-pressure air supplied to the air passage,
The compression molded product held in the concave portion can be held without rattling, and a complicated mechanism for photographing the front and back surfaces of the compression molded product when the holding means is composed of two cylindrical bodies. Can be omitted.

[Brief description of the drawings]

FIG. 1 is a front view showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is a plan view showing a schematic configuration of the embodiment.

FIG. 3 is a sectional view showing a configuration of a main part of the embodiment.

FIG. 4 is a sectional view of the inner cylinder of the embodiment.

FIG. 5 is a rear view of the inner cylinder of the embodiment.

FIG. 6 is a sectional view of the outer cylinder of the embodiment.

FIG. 7 is an enlarged plan view showing the tablet receiving pocket of the embodiment.

FIG. 8 is a sectional view of an upper roller (lower roller) of the embodiment.

FIG. 9 is a configuration explanatory view showing an arrangement of a vertical air distributor, an illumination head, and a detection camera as viewed from a direction along a rotation axis in the embodiment.

[Explanation of symbols]

 3 upper roller 4 lower roller 7 inner cylinder 8 outer cylinder 10 rotary shaft 71 air passage 81 tablet receiving pocket 81k penetrating part

Claims (5)

(57) [Claims] 1. A compression-molded article manufactured by compressing powder, comprising holding means for removably holding a compression-molded article in a predetermined posture with its surface exposed, the compression-molded article being held by the holding means. of the appearance inspection device of the compression-molded article determines the quality of the appearance of a captured compression molded product appearance, the holding means, the water
It is supported rotatably at a predetermined angle from flat, and on the outer peripheral surface
Inclined tip with decreasing triangular shape in plan view
Has a plurality of holding parts of the same shape arranged downward, and the compression-molded product supplied to each holding part moves within the holding part by its own weight and at a predetermined position of the holding part according to its outer shape An appearance inspection device for a compression-molded product, which is held. The holding means comprises two cylinders which are driven to rotate in synchronization with each other in opposite directions, and wherein the compression-molded article is transferred from one cylinder to the other. 2. The apparatus for inspecting the appearance of a compression-molded product according to claim 1, wherein the appearance of the surface facing the back can be photographed. 3. The holding means has a substantially triangular shape in a plan view on its surface.
And a cylindrical body having a holding portion composed of a concave part having a depth dimension substantially equal to the height dimension of the compression-molded product, and rotating the cylindrical body in a state in which the inner diameter of the concave part is inclined downward so as to be reduced. 3. The external appearance of the compression-molded product according to claim 1, further comprising a rotating shaft that supports the compression-molded product, the compression-molded product having entered the concave portion being moved by its own weight in the downward apex direction. Inspection equipment. 4. A cylindrical body comprising: an outer cylinder having a penetrating portion for forming a concave portion; and an inner cylinder disposed inside the outer cylinder and closing the penetrating portion on the inner surface side of the outer cylinder. The visual inspection device for a compression molded product according to claim 2 or 3, wherein: 5. A cylinder according to claim 2, wherein the cylindrical body has an air passage communicating with the recess, and the compressed molded article in the recess is sucked by at least reduced-pressure air supplied to the air passage. 4. Apparatus for inspecting the appearance of a compression-molded article according to 4.