JPH04272021A - Posture change device for inspection of circular flat object - Google Patents

Abstract

PURPOSE:To change the posture of circular flat objects from side to vertical direction in the course of transfer of the objects. CONSTITUTION:A conveyor belt 36, which is set along the horizontal direction at the upstream end in transfer direction and twisted along the direction of an angle relative to the horizontal direction at the downstream end in transfer direction, is provided. Circular flat objects 2 are supplied on their sides from an object feeding device 31 onto a conveyor belt 36, and the objects 2 are transferred to a guide device 32 by means of the conveyor belt 36. In the course of this transfer, the posture of the objects 2 is changed into vertical direction due to twist of the belt 36, and the objects 2 of which posture is changed into vertical direction are dropped into a groove 46 of the guide device.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inspection posture changing device for changing the posture of a circular flat article being conveyed from horizontal to vertical.

0002

[Background Art] In various manufacturing lines, products being transported are imaged by an imaging device using an image sensor or the like as an imaging element, and the images are processed to inspect the products for defects such as cracks and chips. things are being done. When performing such an inspection, it is necessary to perform the inspection so as to cover the entire outer surface of the product.

[0003] Therefore, when inspecting a circular flat article such as a tablet, the circular flat article is oriented horizontally and inspected from the front and back sides, and then the circular flat article is rotated vertically. However, it is also necessary to inspect from the outer circumference side.

[0004] In this specification, the term "circular flat article" refers to an article whose outer periphery has a circular outline, such as a tablet, and whose thickness in the central axis direction of the circular outline is smaller than the diameter of the outer periphery. means.

[0005] Regarding a circular flat article, "horizontal orientation" means a posture in which the central axis of the circular outline is directed upward and downward, and regarding a circular flat article, "vertical orientation" means an orientation in which the central axis of the circular outline is oriented in the vertical direction. means lateral orientation.

Conventionally, apparatuses shown in FIGS. 5 to 8 have been proposed as apparatuses for inspecting circular flat articles. In these figures, 1 is a belt conveyor that conveys the circular flat article 2 in a horizontal orientation, 3 is a conveyance device that conveys the circular flat article 2 in a vertical orientation, 4 is an imaging device using an image sensor as an imaging element, and 5 1 is an inspection posture changing device that converts the posture of a circular flat article 2, which has been conveyed in a horizontal posture by a belt conveyor 1, into a vertical posture and supplies it to a conveying device 3.

The conveying device 3 is a caterpillar-type endless conveying device, and includes wheels 6 and 7 that are arranged parallel to each other and at least one of which is rotationally driven by a drive source (not shown).
and belts 8, 8 stretched between the wheels 6, 7 at intervals in a direction perpendicular to the conveying direction; and belts 8, 8.
A large number of rectangular carriers 9, 9, .
Each carrier is attached to belts 8, 8 by pins 10 at both ends thereof.

[0008] Each carrier 9 is provided with a plurality of slots 9a (four in the illustrated example) each consisting of a U-shaped cutout that opens rearward in the transport direction. slot 9a
is for receiving a flat circular article (hereinafter simply referred to as an article) 2 as an article to be inspected and holding the article vertically, and is provided so as to penetrate through the carrier in the thickness direction. There is.

Between the upper horizontal parts of the belts 8, 8,
Pulleys 11 and 12, at least one of which is rotationally driven by a drive source (not shown), and a belt 13 that is driven by the pulleys 11 and 12 are arranged. This belt 13
is provided so that its upper part 13a extends horizontally below the carriers 9, 9, . driven to move. belt 13
Fixed bottom plates 14 and 15 are horizontally disposed at the front and rear of the base plate, respectively. The belt 13 and the bottom plates 14 and 15 are provided so that their upper surfaces are located on substantially the same plane, and the bottom plates 14 and 15 receive the inspected article 2 inserted into each slot 9a of the carrier 9. The article 2 in each slot is rotated by a belt 13 during conveyance. The area where the belt 13 is provided is a rotation drive area, and the belt 13 and pulley 11,
12 constitutes a rotational drive device 16 that rotationally drives the circular flat article.

[0010] The inspection posture changing device 5 is used to detect a circular flat article 2 that has been conveyed in a sideways posture by the belt conveyor 1.
The posture of the carrier is changed to vertical, and the circular flat article 2 is supplied into the slot of each carrier.

This inspection posture changing device 5 has a predetermined number (five in the illustrated example) of diagonally arranged guide members 17.
By arranging the guide devices in parallel and connecting the ends with metal fittings 18, 18, slots 9a of the carrier 9 can be formed between the guide devices.
, 9a, . . . corresponding to the guide grooves 19, 19, .
A screen plate 20 is attached near the end of each guide member 17 on the belt conveyor 1 side. A conveyor belt 24 driven by at least one of pulleys 21 and 22 and applied with a predetermined tension by a tension roller 23 is disposed below the guide member 17 . Further, a vibration applying device 25 for applying vibration to the apparatus is attached to this posture changing apparatus for inspection.

The circular flat article 2 conveyed by the belt conveyor 1 passes through the screen plate 20 of the inspection posture changing device 5,
Dropped between 20,... The circular flat article 2 dropped between the screen plates hits the guide member 17 as shown in FIG. Converted to orientation state. The article 2 inserted vertically into the guide groove 19 is conveyed by the conveyor belt 24 and descends toward the corresponding slot of the carrier 9 of the conveyor 3 . A guide plate that directs the article 2 downward is attached to the lower end of the guide groove 19, and the article 2 that has descended within the guide groove 19 is directed downward by this guide plate and placed in the corresponding slot 9a. inserted into.

The circular flat articles 2 supplied to the conveying device 3 are held in the slots 9a of each carrier 9 and conveyed to the right in FIGS. 5 and 6. Each article is rotationally driven by a belt 13 in a rotation drive region, and each rotating article 2 is imaged from the outside by an imaging device 4 using an image sensor as an imaging element. The image signal obtained from the imaging device 4 is compared with an image signal obtained by previously imaging a normal article in the same manner to determine whether there is a defect. The article 2 that has been inspected is transferred from the conveyance device 3 to the next conveyance device, and defective products are removed at this time.

Although not shown in FIGS. 5 and 6, on the left side of the belt conveyor 1, there is another inspection in which images are taken from the front side and the back side of the circular flat article 2 when it is placed sideways. A device is placed therein, and only those articles that are determined by this inspection device to be normal in the parts visible from the front side and the back side are supplied by the belt conveyor 1 to the entrance of the posture changing device 5 for inspection.

[0015]

[Problems to be Solved by the Invention] As described above, in the inspection posture changing device 5 used in the previously proposed inspection device, the circular flat article 2 conveyed by the belt conveyor 1 is allowed to fall freely and guided. By hitting the member 17 and applying vibration by the vibrating device 25, the article 2 is dropped into the guide groove and its posture is changed.

In the conventional apparatus, in the process of conveying articles by the belt conveyor 1, a series of articles 2, 2, . . . are conveyed at approximately constant intervals, so no problem occurs; The testing posture changing device 5 that changes the posture in response to the received signal has the following problems.

That is, the article 2 which has freely fallen from the conveyor 1 to the inspection posture changing device 5 side is dropped into the guide groove 19 by the vibration given from the vibrating device 25, but as shown in FIG.
As shown in B), the article 2 may get stuck between the guide member 17 and the screen plate 20 or the guide member 17. When the article 2 runs aground in this manner, the supply of the article 2 from the attitude changing device 5 is stopped until the article 2 that has climbed aboard is fed into the guide groove 19, so the attitude changing device The supply operations of goods tended to be delayed. Furthermore, with the conventional inspection posture changing device 5, it is difficult to increase the supply speed of the article 2 as necessary.

Furthermore, as shown in FIG. 8(B), the article 2
If the condition continues such that the articles 2 continue to ride on the guide member 17 or the like, the articles 2 falling one after another from the belt conveyor 1 overlap, and the articles may become jammed near the entrance of the attitude changing device 5. When an article becomes clogged in the attitude changing device 5, it is necessary to temporarily stop the line and remove the clogged article, which poses a problem in that processing efficiency is significantly reduced. Particularly in the inspection of products such as tablets, it is necessary to process large quantities of 100,000 pieces per hour, so stopping the line must be avoided.

SUMMARY OF THE INVENTION An object of the present invention is to provide a posture changing device for inspecting a large number of circular flat articles, which can easily change the posture of a large number of circular flat articles and send them out.

[0020]

[Means for Solving the Problems] The present invention is an inspection posture changing device that changes the posture of a circular flat article being conveyed from horizontal to vertical. In order to achieve this, it is twisted so that the upstream end in the conveying direction has a surface that runs approximately horizontally, and near the downstream end in the conveying direction, it has a surface that runs at an angle to the horizontal direction. a belt conveyor for attitude change, which is equipped with a conveyor belt for attitude change; , a guide device that is disposed on the downstream side of the conveyance direction of the belt conveyor for attitude change and is provided with a guide groove that receives the conveyed circular flat article in a vertical state, and guides the circular flat article along the guide groove. and has been established.

[0021] In addition, in the second invention of the present application, the upstream end in the conveyance direction has a surface that is substantially parallel to the horizontal direction, and the vicinity of the downstream end in the conveyance direction has a surface that is angled with respect to the horizontal direction. a first attitude change belt conveyor including a conveyor belt twisted so as to have a surface along the same direction; and a first attitude change belt conveyor that is twisted so as to extend in the same direction as the conveyor belt of the first attitude change belt conveyor. a second attitude changing belt conveyor, which is provided with a holding belt, and wherein the upstream end of the holding belt in the conveying direction is located closer to the downstream side than the upstream end of the conveyor belt; an article supply device disposed on the upstream side in the conveyance direction of the first attitude changing belt conveyor to supply circular flat articles onto a surface along the horizontal direction of the conveyor belt; and downstream of the belt conveyor in the conveyance direction. A guide groove is provided to receive the circular flat article placed on the side and conveyed in a vertical state, and a guide device is provided for guiding the circular flat article along the guide groove. The conveyor belt and the holding belt were disposed facing each other so that the circular flat article supplied to the holding belt was conveyed while being sandwiched between the conveyor belt and the holding belt and guided into the guide groove.

In the first aspect of the present invention, the conveyor belt has a function of supporting the object (in this case, a circular flat object) by coming into contact with the object to be conveyed (in this case, a circular flat object) on the upstream side in the conveying direction.
On the downstream side in the conveying direction at an angle to the horizontal direction, the article cannot be supported, and the article slides down toward the guide groove.

[0023] The angle that the conveyor belt makes with respect to the horizontal direction at the downstream end in the conveying direction of the belt conveyor for attitude change is the angle (preferably 90 degrees or 90 degrees) necessary for the article to slide down into the guide groove. Set it to an angle close to 100 degrees.

[0024] The article supply device used in the present invention has a belt conveyor for attitude change at the upstream end in the conveyance direction.
Any item that can supply a series of items may be used.

[0025]

[Operation] In the above structure, since the belt runs in the horizontal direction at the upstream end of the belt conveyor for attitude change in the conveyance direction, when a flat circular article is dropped onto this belt, the article will be Regardless of the posture at the time of the fall, it always lands on the belt sideways. In this case, since the fallen articles are sent out one after another by the attitude changing belt, the articles falling one after another from the article supply device and the fallen articles do not overlap or come into contact with each other.

On the downstream side of the belt conveyor for attitude change in the conveyance direction, since the belt has an angle with respect to the horizontal direction, the circular flat article slides off the belt and enters the guide groove vertically.

[0027] Since the article is restrained in the thickness direction of the article by the guide groove and its posture is changed from the horizontal direction to the vertical direction, there is no clogging of the article which has conventionally occurred.

[0028] In this way, in the present invention, a belt conveyor for posture change equipped with a twisted belt is provided,
The belt conveyor moves the articles while avoiding contact with the following articles, and forcibly changes the posture of the circular flat articles from horizontal to vertical, so the posture of each article is reliably changed to vertical and guided. It can be fed into the groove.

Further, as in the second invention of the present application, a first attitude changing belt conveyor and a second attitude changing belt conveyor are provided, and a circular flat article is sandwiched and conveyed between the belts of both conveyors. By doing so, the degree of freedom of the circular flat article on the conveyor belt can be suppressed and the conveying force can be strengthened, so that the posture of the circular flat article can be changed more reliably.

[0030]

[Embodiment] FIG. 1 shows an embodiment of the present invention. In the figure, 30 is a belt conveyor for attitude change, 31 is a
An article supply device 32 disposed on the upstream side in the conveyance direction of the attitude change belt conveyor 30 is a guide device 33 disposed on the downstream side in the conveyance direction of the attitude change belt conveyor 30.
is a belt conveyor arranged below the guide device 32.

The attitude changing belt conveyor 30 includes pulleys 34 and 35 and an endless conveyor belt 36 that is stretched around these pulleys, and the outer surface of the belt 36 serves as a conveyed object contact surface 36A. . The pulley 34 located on the upstream side in the conveying direction has a rotating shaft 37 extending in the horizontal direction.
A pulley 35 is attached to the
is attached to a rotating shaft 38 extending in the vertical direction.

Therefore, in the conveyor belt 36, at the upstream end in the conveying direction, the conveyed object contacting surface 36A runs along the horizontal direction, and at the downstream end in the conveying direction, the corresponding contacting surface 36A runs along the vertical direction. It is twisted 90 degrees. The number of conveyor belts 36 is equal to the number of conveyance paths for circular flat articles. FIG. 2 shows an example in which three conveyor belts 36 are provided. In this case, the rotating shaft 38 needs to be provided for each conveyor belt, but the rotating shaft 37 can be provided commonly for all conveyor belts. At least one of the rotating shafts 37 and 38 is connected to a rotational drive source, and each conveyor belt 36 is driven in the conveyance direction by the rotational drive source.

The article supply device 31 consists of a normal belt conveyor in which a belt 41 is stretched around a pulley 40 and a pulley (not shown).
,... are held at predetermined intervals and transported. The article supply device 31 is disposed with its downstream end in the conveying direction (the direction of the arrow in the figure) positioned above the upstream end of the posture changing belt conveyor 30 in the conveying direction, and circular flat articles 2, 2, ... on the belt of a belt conveyor for
Let them fall one by one.

The guide device 32 has an outer guide plate 42 and an inner guide plate 4 facing each other with a conveyor belt 36 in between.
3, and a channel member 44 having a U-shaped cross section and provided integrally with both guide plates at the downstream end of these guide plates in the conveying direction. The lower portions of the guide plates 42 and 43 are plate-shaped portions extending in the vertical direction.
The upper portion of each belt facing the conveyor belt is bent along the inclined surface of the twisted conveyor belt. The upper part of the inner guide plate 43 is arranged close to the back surface of the conveyor belt 36, and the upper part of the outer guide plate 42 is arranged close to the outer surface of the conveyor belt 36 (conveyed object contact surface 36A).
) are placed opposite to each other with a predetermined gap in between. The gap between the outer guide plate 42 and the conveyor belt 36 is set to be larger than the thickness of the circular flat article 2 to be conveyed, and smaller than the outer diameter of the article 2.

The lower part of the outer guide plate 42 and the inner guide plate 4
A groove 45 is formed between the channel member 3 and the lower part of the channel member 44, and a guide groove 46 is formed by this groove 45 and the inner groove of the channel member 44. The width of this guide groove 46 is set larger than the thickness dimension of the article 2 and smaller than the outer diameter dimension, so that the article 2 cannot be inserted into the groove in a horizontal position. In this embodiment, the width of the guide groove 46 is gradually narrowed from the upstream side to the downstream side in the conveyance direction, and the groove width inside the channel member 44 constituting the outlet of the guide groove 46 is The thickness is set to be slightly larger than the thickness dimension of No. 2.

The groove 45 formed between the lower part of the guide plate 42 and the lower part of the guide plate 43 does not have a bottom plate and is open to the belt conveyor 33 side.

The belt conveyor 33 has pulleys 47 and 4.
At least one of the pulleys 47 and 48 is rotationally driven by a rotational drive source (not shown), and the belt 49 is driven in the conveying direction (in the direction of the arrow in the drawing).

The belt 49 is disposed close to the lower end opening of the groove 45 between the lower part of the guide plate 42 and the lower part of the guide plate 43, and the article 2 inserted into the groove 45 is supported by the belt 49. It is designed to be conveyed to the channel member 44 side. Since the article 2 entering the inside of the channel member 44 is accelerated by the belt 49,
It passes through the groove 46 inside the channel member 44 and is sent to a conveying device for the next process.

In the example shown in FIG. 1, the belt 49 is provided in common to the guide devices 32, which are provided in correspondence with a plurality of conveyor belts, respectively.
A separate belt 49 may be provided for each guide device 32.

When this inspection posture changing device is applied to the inspection device shown in FIG. Place it in the position. In this case, it goes without saying that it is necessary to provide the same number of conveyor belts 36 as there are conveyance paths of the conveyance device 3 (four in the example of FIG. 5). The article supply device 31 may be similar to the belt conveyor 1 used in the example of FIG.

In the embodiment of FIG. 1, the article supply device 31
A circular flat article 2 fed onto a conveyor belt 36 from
is placed horizontally on the conveyed object contact surface 36A along the horizontal direction at the upstream end of the conveyor belt 36 in the conveying direction. The article 2 placed sideways on the conveyor belt 36 changes its posture in response to a change in the twist angle of the conveyed object contact surface during the process of being conveyed by the belt 36. In the process of converting the orientation of the article 2 from horizontal to vertical, when the twist angle of the belt reaches a predetermined value, the conveyor belt 36 will no longer be able to support the article, and the article 2 will be transported by the conveyor belt. It slides on the object contact surface, is guided by the guide plates 42 and 43, and falls vertically into the groove 45 between the two guide plates. The article 2 that has fallen into the groove 45 is conveyed by the belt conveyor 33, enters the inner groove of the channel member 44, and is sent vertically to the next process.

As described above, in the present invention, since the posture of the article 2 is forcibly changed from horizontal to vertical by the twisted conveyor belt 36, the conveyor belt 36
By managing the movement speed of , the speed of attitude conversion can be controlled. In addition, by driving the belt of the belt conveyor for posture change in synchronization with the article supply device, the posture of each article can be changed while maintaining the distance between the articles conveyed by the article supply device. It is possible to prevent the articles from becoming jammed due to disorder of the articles during transportation.

In the above embodiment, the belt conveyor 33 is arranged below the guide device 32, and the article 2 whose posture has been changed to vertical is accelerated by the belt conveyor and sent out from the guide groove. By making the entire guide groove provided in the guide device bottomed and sloping the bottom of the guide groove, it is possible to convey the article in a vertical position without using the belt conveyor 33.

In the above embodiment, the guide device 32 is provided with fixed guide plates 42 and 43, but in the present invention, these guide plates are not provided, and an article whose posture has been changed vertically can be transported. It can also be introduced into the guide groove.

FIG. 3 shows an embodiment in which an article is guided into a guide groove without using a guide plate facing the object contacting surface of the conveyor belt.
A first attitude changing belt conveyor 30 and a second attitude changing belt conveyor 30' are provided for each conveyance path.

[0046] The first attitude changing belt conveyor 30 is
This is exactly the same as the attitude changing belt conveyor shown in FIG. Second attitude change belt conveyor 30'
is equipped with a holding belt 36' twisted so as to have a surface extending in the same direction as the belt of the first attitude changing belt conveyor 30, and the holding belt 36' is twisted in the conveying direction of the holding belt 36'. The upstream end of the conveyor belt 36 is located closer to the downstream side than the upstream end of the conveyor belt 36 .

Although not shown, an article supply device is disposed upstream of the first attitude changing belt conveyor 30 in the conveyance direction, and the article supply device allows the article to be placed on the surface of the conveyor belt 36 along the horizontal direction. A circular flat article 2 is supplied.

[0048] Near the downstream ends of the belt conveyors 30, 30', a guide device 32' made of a channel member is arranged between the belts of both conveyors. This guide device is arranged so as to be inclined downward in the conveyance direction, and the guide groove 4 of the guide device 32'
The article 2 introduced into the guide groove 46' is moved in the transport direction along the sloped surface at the bottom of the guide groove 46'.

[0049] Also in this case, the bottom of the guide groove 46' can be opened downward, and the belt conveyor can be disposed below the guide groove 46'.

The gap between the belts 36 and 36' is set to be narrow enough to sandwich and hold the circular flat article 2 between both belts on the upstream side in the conveying direction, but on the downstream side in the conveying direction, It is set wide so that the article 2 that has been pinched can be released.

In the embodiment shown in FIG. 3, the article 2 supplied to the upstream end of the belt 36 is conveyed while being sandwiched between the belts 36 and 36', and during the conveyance process, the article 2 is conveyed by the belt 36.
The posture is changed by a twist angle of 6,36'. belt 3
The article 2 released from both belts at the downstream ends of the belts 6 and 36' falls into the guide groove 46' and moves in the conveying direction in a vertical position within the guide groove 46'.

With the configuration shown in FIG. 3, since each article 2 is conveyed while being sandwiched between the belts 36 and 36', it is possible to prevent the article from moving during conveyance, and the belt conveyor for changing the posture can be prevented from moving during conveyance. It is possible to change the posture of the articles fed thereto and send them to the next process without disturbing the order among them.

In each of the embodiments described above, the belt of the belt conveyor for attitude change is slightly inclined downward toward the downstream side in the conveyance direction, but as shown in FIG. The belt of the conveyor may be inclined upward toward the downstream side in the conveyance direction within a range that does not interfere with conveyance.

Further, in the present invention, the conveyance direction of each attitude change belt conveyor in the horizontal plane is determined by the article supply device 31.
It does not have to be the same as the conveyance direction. For example, in FIG. 2, the distance p between the upstream ends of the belt conveyor 30 in the conveyance direction, the distance q between the downstream ends of the belt conveyor 30 in the conveyance direction (q>p in the illustrated example), By making these values different, the conveying direction of each attitude changing belt conveyor in the horizontal plane can be tilted with respect to the conveying direction of the article supply device.

As described above, in the present invention, since the conveying direction of the belt conveyor for attitude change in the vertical plane and in the horizontal plane can be set appropriately, it is possible to set the positional relationship between the article supply device and the guide device. The degree of freedom can be increased.

In the above embodiment, the belt of the belt conveyor for attitude change is twisted by 90 degrees, but the belt of the belt conveyor for attitude change is twisted in order to prevent the article from sliding down to the guide groove side on the downstream side in the conveyance direction. It is sufficient to twist it by a necessary angle, and it is not necessarily necessary to twist it by 90 degrees.

In practical use, it is preferable to provide means for keeping the winding position of the conveyor belt 36 constant so that the belt does not shift in the axial direction of the pulley during operation. . For this purpose, for example, an endless protrusion extending in the longitudinal direction of the belt may be provided on the back side of the conveyor belt 36, and the protrusion may be fitted into a groove provided on the outer periphery of the pulleys 34, 35, or conversely, the conveyor belt 36 may be An endless groove extending in the longitudinal direction may be provided on the back side of the belt 36, and a collar-shaped convex portion provided around the pulleys 34 and 35 may be fitted into the groove. Also conveyor belt 36
Endless protrusions extending in the longitudinal direction of the belt may be provided on the back side of both ends in the width direction of the belt, and the protrusions may be brought into contact with the end surfaces of both ends of the pulley in the axial direction.

In the above embodiment, it is of course possible to increase the article supply speed by adjusting the respective supply speeds of the article supply device and the inspection posture changing device.

[0059]

As described above, according to the present invention, a belt conveyor for posture change equipped with a twisted belt is provided to avoid overlapping with articles that are continuously supplied by the belt conveyor. In addition to preventing clogging, the posture of circular flat articles is forcibly changed from horizontal to vertical, so the posture of each article can be reliably changed from horizontal to vertical and fed into the guide groove. The attitude of the flat article can be changed smoothly.

[0060] Furthermore, since the posture of the series of articles is changed while being conveyed by the posture changing belt conveyor while maintaining the interval that was maintained when the articles were sent out from the article feeding device, the articles fed from the article feeding device The posture of the circular flat article can be changed and sent to the next process without greatly disturbing the mutual order, and it is possible to prevent the article from clogging in the posture changing section of the circular flat article.

Particularly, according to the second invention of the present application, a first attitude changing belt conveyor and a second attitude changing belt conveyor are provided, and a circular flat article is sandwiched between the belts of both conveyors and conveyed. As a result, the circular flat articles can be conveyed while maintaining a predetermined interval without being moved on the belt conveyor, and it is possible to prevent the articles from moving on the belt conveyor and disrupting the intervals between a series of articles. can. In this case, the article is restrained between two belts and its posture is changed to vertical or nearly vertical, and then the restraint is released, without the aid of other guide means. Since the article can be reliably dropped into the groove of the guide device, the structure of the guide device can be simplified.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing essential parts of an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which a plurality of belts of the attitude changing belt conveyor are arranged side by side in the embodiment of the present invention.

FIG. 3 is a perspective view showing essential parts of another embodiment of the present invention.

FIG. 4 is a perspective view showing the arrangement of belts of a belt conveyor for attitude change in another embodiment of the present invention.

FIG. 5 is a front view showing a configuration example of an inspection device suitable for applying the inspection posture changing device of the present invention.

FIG. 6 is a plan view of FIG. 5;

7 is a perspective view showing essential parts of a conveyance device used in the inspection device of FIG. 5. FIG.

FIGS. 8A and 8B are cross-sectional views showing main parts of a conventional inspection posture changing device.

[Explanation of symbols]

2... Circular flat article, 30, 30'... Belt conveyor for attitude change, 31... Article supply device, 32... Guide device, 36
...conveyor belt, 36'...pressing belt, 46...guide groove.

Claims (2)

[Claims] Claim 1. An inspection posture changing device that changes the posture of a circular flat article being conveyed from horizontal to vertical; a belt conveyor for attitude change, including a conveyor belt twisted so as to have a surface along a direction having an angle with respect to the horizontal direction near an end on the downstream side; and an upstream side of the belt conveyor for attitude change in the conveying direction. an article feeding device that is disposed on the conveyor belt and supplies the circular flat article onto a surface along the horizontal direction of the conveyor belt; and an article supply device that is disposed on the downstream side in the conveyance direction of the attitude changing belt conveyor and conveyed the circular flat article. A posture changing device for inspecting a circular flat article, comprising: a guide groove for receiving a circular flat article in a vertical state, and a guide device for guiding the circular flat article along the guide groove. 2. In an inspection posture changing device that changes the posture of a circular flat article being conveyed from horizontal to vertical, the upstream end in the conveying direction has a surface that runs approximately horizontally; a first attitude changing belt conveyor including a conveyor belt twisted so that near the downstream end thereof, the conveyor belt has a surface along a direction having an angle with respect to the horizontal direction;
A holding belt twisted so as to have a surface extending in the same direction as the conveyor belt along the conveyor belt of the first attitude changing belt conveyor, the holding belt having an upstream end in the conveying direction; a second attitude changing belt conveyor whose part is located closer to the downstream side than the upstream end of the conveyor belt; and a second attitude changing belt conveyor which is arranged upstream of the first attitude changing belt conveyor in the conveying direction. an article supply device that supplies circular flat articles onto a surface along the horizontal direction of the conveyor belt; a guide device having a guide groove for receiving the circular flat article and guiding the circular flat article along the guide groove, the circular flat article supplied from the article supplying device onto the conveyor belt to the conveyor belt and the holding device; A posture changing device for inspecting a circular flat article, in which the conveyor belt and a holding belt are disposed facing each other so as to be conveyed while being sandwiched between the belt and guided into the guide groove.