JPH04301752A - Cylindrical body inspection device - Google Patents

Abstract

PURPOSE:To examine the outer side surface of a cylindrical body as a substance to be inspected accurately and automatically at a high speed while rotating the cylindrical body in a specific angle. CONSTITUTION:On a rotary inspection board 12, a cylindrical body with the bottom surface at one side end is loaded and rotated. A holder H is provided on the rotary inspection board 12, and the side surface of the cylindrical body is inspacted by an inspection means to hold the cylindrical body and to rotate it continuously along a specific angle according to the rotation of the rotary inspection board 12.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylindrical body inspection apparatus, and more particularly to a cylindrical body inspection apparatus for simultaneously inspecting the outer and inner surfaces of a cylindrical body.

0002

[Prior Art] Until now, there has been no inspection device that confirms the position of a cylindrical body such as a laminate tube by checking the registration mark marked on the outer surface of the cylindrical body. A visual inspection had to be done. Furthermore, there is no cylindrical body inspection device for inspecting the inner surface of a cylindrical body as described above, and in order to inspect the outer and inner surfaces of a cylindrical body, an inner surface inspection must be performed after the outer surface inspection.

0003

[Problems to be Solved by the Invention] However, this method has the problem that there is a limit to the efficiency of inspection, the speed of the entire process is limited by this inspection process, and complete automation cannot be achieved. SUMMARY OF THE INVENTION An object of the present invention is to provide a cylindrical body inspection device that can simultaneously image and inspect the outer and inner surfaces of a cylindrical body at high speed and automatically.

0004

[Means for Solving the Problems] The present invention having the above-mentioned object includes a rotary inspection table which rotates, on which a cylindrical body having a bottom surface is placed at one end, and a rotating inspection table which is provided on the rotary inspection table and holds the cylindrical body. death,
A rotation holding part that continuously rotates the cylindrical body over a predetermined angle in accordance with the rotation of the rotating inspection table;
In order to inspect the outer surface of the cylindrical body held in the rotating holding part, there is a cylindrical body outer surface inspection means having an inspection means near the outer surface of the cylindrical body, and an inner surface of the cylindrical body while the cylindrical body is stopped. In order to inspect the cylindrical body, the cylindrical body is provided with an inner side surface means having an inspection means on the inner surface of the cylindrical body.

[0005]

[Operation] The cylindrical body inspection device of the present invention having the above configuration has the following features:
A cylindrical body, which is an object to be inspected, is held by a rotating holding part that rotates in accordance with the rotation of a rotating inspection table provided on a rotating inspection table. The rotation holding section intermittently rotates the cylindrical body over a predetermined angle. An outer surface inspection means is provided close to the outer surface of the cylindrical body, and a sensor reads the mark written on the outer surface of the cylindrical body while the cylindrical body is rotating to check its condition. Depending on the check status, a signal to that effect is sent to the cylindrical body that does not meet the standard.

Furthermore, the rotation is stopped for a certain period of time after rotation by a predetermined angle. During this period, the inner surface of the cylindrical body is imaged, and by binarizing the image data, scratches on the inner surface are detected and the cylindrical body is removed. In this way, the cylindrical body of the object to be inspected is rotated by a predetermined angle and then stopped, which is repeated, and the outer surface of the cylindrical body is automatically inspected when rotating, and the inner surface of the cylindrical body is automatically inspected when it is stopped. The inner and outer surfaces of a cylindrical body can be inspected at high speed and accurately.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of the present invention will be described with reference to the drawings. This embodiment discloses an example in which the cylindrical body to be imaged or inspected according to the present invention is a laminate tube. FIG. 1 shows the configuration of a tube inspection system using an embodiment of the present invention. This tube inspection system 200 includes a tube insertion section 1, a cylindrical body inspection device 2, a tube removal section 3, and a transport device 4.
and an emergency discharge conveyor 5.

[0008] The tube insertion section 1 includes an accumulation conveyor 6,
It has a pusher 7 and a tube insertion jig 8. The cylindrical body inspection device 2 includes a rotating inspection table 12, a star wheel 13 for discharging defective products, a chute 14 for discharging defective products, and a pool 15 for defective products. The tube take-out section 3 includes a stopper 19, a stopper 21, a tube take-out pick and place 20, a pitch correction jig 22, a box conveyor 23, box holding devices 24a and 24b, box stoppers 25a and 25b, and a tube take-out pick and place 20. It has an accumulation conveyor 26 and a tube packaging device 27. The conveyance device 4 includes a conveyor 9 and a timing screw 1.
0, star foil 11, star foil 13 for discharging defective products, joint screw 16, sorting star foil 17, good product conveyor 18, empty holder conveyor 29, empty holder conveyor 30, and merging device 3.
1 and an empty holder conveyor 32. Next, the operation of this cylindrical body inspection device 2 will be explained.

[0009] The laminate tubes T are conveyed from the pre-process A and are accumulated by the accumulation conveyor 6. Thereafter, a predetermined number of tubes are pushed out at once by a pusher 7, and placed on a holder H on a conveyor 9 by a tube insertion jig 8. The laminate tube T is carried on the holder H by the conveyor 9 toward the cylindrical body inspection device 2 . When reaching the vicinity of the cylindrical body inspection device 2, each holder H is advanced at a predetermined interval by a screw-shaped timing screw 10, and the rotation of the cylindrical body inspection device 2 is controlled by a star-shaped star foil 11. It is placed on the examination table 12. The rotating inspection table 12 rotates clockwise in the figure, and inspects the outer and inner surfaces of the laminate tube T while rotating. Cylindrical body inspection device 2
The detailed configuration and operation of will be explained in detail later. If the product is determined to be defective as a result of the inspection, only the defective laminate tube T is taken out upwards and ejected, leaving only the holder H, in the star-shaped star foil 13 that also serves as defective product discharge. They pass through the chute 14 and are accumulated in a defective product pool 15. The non-defective laminate tubes T and holders H and only the holders H remaining after the defective laminate tubes T are discharged are conveyed to a sorting star foil 17 by a screw-like connecting screw 16. The sorting star foil 17 places the good quality laminate tubes T and holders H on the good quality product conveyor 18,
Empty holders from which defective laminate tubes T have been discharged are sorted to be placed on an empty holder conveyor 30. The non-defective laminate tubes T and holders H transported by the non-defective transport conveyor 18 are transported to the tube take-out section 3 by the non-defective transport conveyor 18. In the tube take-out section 3, a predetermined number of laminate tubes T and holders H are first stopped by the stopper 21 and then by the stopper 19, and only the laminate tubes T are taken out from the good product conveyor 18 by the tube take-out pick and place 20. . Next, the pitch of these laminated tubes T is corrected by the pitch correction jig 22, and the tube stacking conveyor 2
6, the tubes are accumulated in the vicinity of the tube packaging device 27. On the other hand, a box conveyor 23 is provided below the stacking position of the laminate tubes T, and empty boxes E are conveyed from the previous process B. The empty box E is stopped by the box holding devices 24a, 24b and the box stoppers 25a, 25b, and is transferred to the lower part of the tube packing device 27 as appropriate. Tube packaging device 2
7 packs a predetermined number of the accumulated laminate tubes T into empty boxes E. The boxes that have been packed are transported to the next process C by the box transport conveyor 23. The holder H from which only the laminate tube T has been taken out by the tube take-out pick-and-place 20 is conveyed to the merging device 31 by the empty holder conveyor 29. Empty holders sorted by the sorting star foil 17 are also conveyed to the merging device 31. The merging device 31 has two timing screws to merge these empty holders in a line and place them on the empty holder conveyor 32. The empty holder conveyor 32 conveys the empty holder to the tube insertion section 1 and connects it to the conveyor 9.

In this manner, the outer and inner surfaces of the laminate tube T can be automatically inspected during the manufacturing process of the laminate tube T. Next, the configuration of a cylindrical body inspection apparatus 2 that is an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 2, this cylindrical body inspection device 2 includes optical sensors 95 and 96 as outer surface inspection means. The optical sensors 95 and 96 have their sensor portions arranged adjacent to the outer surface of the tube. Then, the position of the tube is determined based on the optical sensors 95 and 96 and the position of the position mark 100 marked on the outer surface of the tube,
Determine whether it is OK or NG. On the other hand, twelve inspection stations E1 to E12 are provided on the rotating surface of the rotary inspection table 12. The inspection stations E1 to E12 are arranged on the same circumference X1 by dividing the rotating surface of the rotary inspection table 12 into 12 parts every 30 degrees.

On the other hand, 12 inspection stations E1 to
A pencil-type air cylinder 97 corresponding to E12 is placed on a plate 98 placed below the rotating inspection table 12. Air cylinders 97CY1 to CY12 are centered at 0
Six concentric circles C1, C2, formed at equal intervals from
C3, C4, C5, and C6 are respectively arranged on the plate 98 corresponding to the intersections of concentric circles and straight lines drawn from the center 0 to each inspection station.

Furthermore, a proximity switch 99 is arranged on the bottom surface of the rotating inspection table 12, and a proximity switch 99 is arranged on the bottom surface of the rotating inspection table 12.
~ If an abnormality is found on the outer surface of the tube at E12, the head 100 of the air cylinder 97 is raised with air, and the raised head 100 is detected by the proximity switch 99 placed at a predetermined position. It has become.

The cylindrical body inspection device 2 also includes a base 35,
Motor 36, rotating shaft 37, rotating inspection table 12, cam 46, cam follower 47, and holder lifting/lowering rotating shaft 48
, a centering jig 38, and an inner tube inspection device 39
, a camera selector 43, a mixer 44, an antenna section 45, a rotary resolver 49, a fixed resolver 50, a light amount checker 51 (FIG. 2), a cam positioner 87, and a discrimination device 84 (FIG. 5). We are prepared. Here, the motor 36, the rotating shaft 37, and the rotating inspection table 12 constitute a transfer means. The tube inspection device 39 constitutes an imaging means. Further, the above constitutes a cylindrical object imaging device 2. Further, the antenna section 45 constitutes a signal transmitting/receiving means. The discriminating device 84 constitutes discriminating means.

A fixed shaft (not shown) is provided on the base 35, and a tubular rotating shaft 37 shares an axis with the fixed shaft and is provided so as to cover the fixed shaft. The rotating shaft 37 is configured to be rotationally driven by the motor 36. Further, a rotary resolver 49 and a fixed resolver 50 are provided to measure the angular position of the fixed shaft and the rotating shaft 37. The rotating inspection table 12 is connected to a rotating shaft 37, and the rotating shaft 3
It rotates with the rotation of 7. A holder H can be placed on the rotating inspection table 12. The holder H is lifted and lowered and rotated by a holder lifting and lowering rotation shaft 48. The vertical movement of the holder vertical rotation shaft 48 is performed by a cam 46 and a cam follower 47 provided at the lower end of the holder vertical rotation shaft 48 . The squeeze opening side of the laminate tube T can be fitted into the holder H. Further, a centering jig 38 that holds the tail portion of the laminate tube T in a circular shape is supported above the holder H. Next, referring to FIG. 3, an intra-tube inspection device 39 for inspecting the inside of the laminate tube T includes an intra-tube insertion section 40, a borescope 41, and a CCD camera 42. The borescope 41 includes a borescope main body 52 and a borescope insertion section 53. Tube insertion part 40
includes a borescope insertion section 53, a light emitting diode section 54, and a photosensor section 55. Of these, the borescope insertion section 53 mainly inspects the inner bottom side of the laminate tube T in the diagram, that is, the squeezing opening side, and the light emitting diode section 54 and the photosensor section 55 mainly inspect the inner surface of the laminate tube T. The cylindrical body inspection device 2 is provided with 12 tube internal inspection devices 39, and is also provided with 12 cam followers 47 and 12 holder lifting/lowering rotation shafts 48. The number of these objects is not limited to 12 and may be any other number. Each tube inspection device 3
9 is connected to a camera selector 43 by a lead wire, and the camera selector 43 is connected to a mixer 44. Mixer 44 is connected to antenna section 45. The antenna section 45 is connected to the discrimination device 84.

Next, the operation of the cylindrical body inspection apparatus 2 will be explained with reference to FIGS. 2 and 6. In FIG. 2, the laminate tube T is placed on a holder H and conveyed to the star foil 11 by a conveyor 9 or the like. star foil 11
takes the laminate tube T together with the holder H onto the rotary inspection table 12 of the cylindrical body inspection device 2. After the laminate tube T is taken onto the rotating rotating inspection table 12, the holder H moves up and down according to the cam curve of the cam 46 as the holder elevating rotation shaft 48 moves up and down, and around the axis of the holder elevating and lowering rotating shaft 48. Perform intermittent rotational movements. That is, as shown in FIG. 6, the rotating inspection table 12 rotates on its axis at the inspection position while revolving in the rotational direction, but at this time, the rotation is temporarily stopped at points P1, P2, P3, and P4 on the figure for a predetermined time. Stop. In this way P1, P2
, P3, and P4, the inner surface of the laminate tube is inspected while the rotation is stopped for a predetermined time. That is, while the rotation (rotation) of the laminate tube T stops in areas A, B, C, and D in the figure, the inner surface of the laminate tube T is inspected in each area divided into four areas at 90 degrees. As the holder H rises, the laminate tube T also rises, and the intra-tube insertion section 40 of the intra-tube inspection device 39 is inserted into the tube held in a circular shape by the centering jig 38. At the same time, the optical sensor for inspecting the cylindrical body enters a state of starting inspection. In addition, in this state, the laminate tube T rotates by 90 degrees between points R1 and R4 intermittently, so that it rotates by 90 degrees during rotation.
Inspection of the outer surface of the tube can be performed for a rotation range of 10° (FIG. 7). When the inspection of one tube is completed, the defective laminate tube T is discharged by the aforementioned defective product discharge star foil 13, and the non-defective laminate tube T is conveyed toward the tube removal section 3. Furthermore, before the tube insertion section 40 is inserted into the laminate tube T, the light amount of the light emitting section is checked by a light amount checker 51, and the result is reflected at the time of data processing. Furthermore, if the light intensity is below a reference value, an alarm can be issued and parts can be replaced.

The outer surface inspection method will now be explained in more detail with reference to FIG. First, in FIG. 9(a), when the registration mark 100 is marked at a predetermined position on the laminate tube and the lower end of the registration mark 100 is detected by the optical sensor 95, but nothing is detected by the optical sensor 96, that is,
In the case shown in (a) of FIG. 9(b), the value is set as a normal value (1, 0). In other cases, register mark 100
It is determined that the laminate tube is shifted, that is, the entire laminate tube is shifted, and binarized data is generated as shown in (b), (c), and (d) of FIG. 9(b). Next, referring to FIG. 6, if a shift of the registration mark on the outer surface is found in any of the four areas divided into four parts during the inspection of the inspection section, for example, during the rotation of the area R2 at the inspection station E11, the registration mark If a defect is found, air is supplied to the air cylinder CY11 to raise the head 100 of the air cylinder CY11. The head 100 of the air cylinder CY11 continues to rotate in the raised state. On the other hand, the circumference C1 on the plate 98,
C2 has a position display section that divides the circumferential direction of the rotary inspection table 12 into four parts at intervals of 90° and displays the position using a convex part and a flat part. C2
By combining the position display parts, it is possible to display four divided positions. CY above
According to the example of No. 11, the position display section has circumferences C1 and C2.
Both sides have convex portions. Furthermore, the head 100 of the air cylinder CY11 is rotated to the position of the fixed proximity switch 99 in the raised state. In that case, A and B forming the proximity switch 99
, C, D, E, and F, the bits are set for A, B, and E. As a result, the laminate tube placed in the inspection station E11 as a cylindrical body is eliminated.

FIG. 9(b) shows a timing chart for inspecting while rotating and performing image processing when stopped. Next, with reference to FIG. 11, the electrical configuration of a cylindrical body external surface inspection apparatus that performs external surface inspection using signals from a pair of optical fiber sensors 1 and 2 will be described. First, an explanation will be given based on the above example. Optical fiber sensor 1 with NG formed at E11
, 2 are sent to the ultra-compact PC 6, and the start signal and inspection pulse from the cam positioner 92 are sent at the same time. The following four select switches 102a, 102
b, 102c, 102d and select switch 1
Inspection stations 1, 5, 9 and 2, 6, 10, 2, 7, 11 of 02a, 102b, 102c, 102d, respectively.
If any one of the signals in groups 4, 8, and 12 is NG, the NG signal is selectively sent to one video selector 43. When an NG signal is generated, an NG signal is generated when an image is selected by the select switch 102a. Therefore, in the case of the above example, if there is an NG in CY11 at E11, the signal from inspection station E11 in FIG.
6, the PC 6 sends it to the select switch 102c, and at the same time a determination signal NG is sent to the video selector 4.
Sent to 3c.

On the other hand, to explain the processing of the inspection information detected by the tube inside inspection device 39, the image information of the inner bottom surface of the laminate tube T detected by the CCD camera 42 is converted into a video signal, and the photo sensor unit 5
The inspection information on the inner surface of the laminate tube T detected in step 5 is converted into an audio signal, the two are mixed, and transmitted to the outside to determine whether or not there is a defect. FIG. 5 is a block diagram showing the flow of image information processing of the inner bottom surface of the laminate tube T detected by the CCD camera 42. As shown in FIG.

In FIG. 5, the block is roughly divided into a rotating block 85 and a fixed block 86. The rotating block 85 has 12 C
CD cameras 42a, 42b, 42c, 42d, 42e,
42f, 42g, 42h, 42i, 42j, 42k, 4
2l, the camera selector 43, the mixer 44, the electromagnetic shielding cover 72 of the antenna section 45 and the transmitting antenna 74, the cam positioner 87, the rotary resolver 49,
Contains.

The fixed block 86 includes the electromagnetic shielding cover 73 of the antenna section 45, the receiving antenna 75, the distributor 88, the tuners 89a, 89b, 89c, 89d,
89e, 89f, 89g, 89h and controller 90
A, 90B, monitors 91a, 91b, cam positioner 92, defective determination circuit 93, fixed resolver 50,
Contains. Here, a distributor 88 and a tuner 89a
~89h, controllers 90A, 90B, and monitor 9
1a, 91b, cam positioner 92 and defective determination circuit 9
3 constitutes a discrimination device.

The image information of the inner surface and bottom surface of the laminate tube T from each of the CCD cameras 42a to 42l is obtained by the camera selector 43, which specifies the camera that should take in the information from the angular position of the rotating inspection table 12 detected by the rotating resolver 49. Select and import only image information from that camera,
The signal is transmitted to mixer 44. As is clear from FIG. 6, when a certain laminate tube T reaches point P4, subsequent laminate tubes T have already reached points P3, P2, and P1, so image information from four cameras is simultaneously transmitted. is taken in. The mixer 44 modulates and mixes these four pieces of image information using predetermined transport plates, and outputs the mixed image information to the transmitting antenna 74. The mixed image information is transmitted from transmitting antenna 74 to receiving antenna 75. The transmitting antenna 74 and the receiving antenna 75 are electromagnetically shielded by an electromagnetic shielding cover 72 and an electromagnetic shielding cover 73. The mixed image information received by the receiving antenna 75 is divided into frequency bands by a distributor 88 and sent to each tuner 89a to 89h, where information signals are detected. Among the tuners 89a to 89h, information signals from the tuners 89a to 89d are sent to the controller 90A. Further, information signals from tuners 89e to 89h are sent to controller 90B. controller 90
A and 90B are monitored by monitors 91a and 91b. From the detected angular position of the rotating inspection table 12, the cam positioner 92
identifies the camera number and transmits it to the defective judgment circuit 93, while the cam positioner 92 issues a selection signal to the controller 90A or 90B to select the signal to be sent to the defective judgment circuit 93 from among the information signals from each tuner. do. The defect determination circuit 93 determines whether or not the image information signal from each camera is defective, and outputs the result to the outside. For example, the image information signal is binarized based on brightness and judged based on the number of pixels in the dark area. on the other hand,
The signal from the outer surface inspection device is received by the sensors 95 and 96, and the discrimination circuit determines whether it is OK or NG.If OK, a signal from the corresponding inspection station is sent to the video selector 43, and if NG, the signal is sent to the video selector 43. sends an NG signal to the video selector.

To briefly summarize the present invention again with reference to the timing chart of FIG. 7, the outer surface of the first 1/4 region is inspected by an outer surface inspection device using the first 1/4 rotation region R1 of the laminate tube. Then, during a period A during which the laminate tube T stops rotating, the first inner surface region is inspected by the inner surface inspection device. Next, the registration mark on the outer surface of the second 1/4 region is inspected using the second rotation region R2, and the inner surface of the second region is inspected during the period B during which the next rotation is interrupted. After repeating the combination of the outer surface inspection and the inner surface inspection four times in this manner, the inspection of the entire circumference of the outer surface and the entire area of the inner surface can be completed.

FIG. 8 shows an example of the configuration of the antenna section 45.
Explain using. Here, the hatched portions indicate examples of fixed blocks. The antenna section 45 is a transmitting antenna 74
It has a receiving antenna 75, an electromagnetic shielding cover for electromagnetically shielding these, an electromagnetic shielding cover, mounting fittings 76 and 77 for each antenna, and lead wires 81 and 82 for supplying signals. As shown in FIG. 5, the transmitting antenna 74 is attached to the rotating block side, and the receiving antenna 75 is attached to the fixed block side. The transmitting antenna 74 and the receiving antenna 75 are in a non-contact state,
Even when the rotating blocks rotate, they always face each other, allowing information signals to be stably exchanged, and because they are electromagnetically shielded by the electromagnetic shielding cover 72 and electromagnetic shielding cover 73, they are not affected by external noise. It does not become a source of external noise.

FIG. 4 shows an example of the configuration of the rotary resolver 49 and the fixed resolver 50. A resolver is a device that provides angular position information of a rotation axis, etc., as an electrical signal. As illustrated, the rotary resolver 49 is a resolver for detecting angular position information on the rotary block side, and the resolver main body is attached to the rotary block side. The shaft 71, which serves as a reference for rotation, is configured to exhibit the same angular position as the fixed shaft 65 by the gears 69, 70a, and 70b. That is, the gear 70b is a planetary gear, and the gear 69 and the gear 70a have the same number of teeth. With this arrangement, the shaft 71 always exhibits the same angular position as the fixed shaft 65. Further, the fixed resolver 50 is a resolver for detecting angular position information on the fixed side, and the resolver main body is attached to the fixed block side. The rotation of the rotating shaft 80 is transmitted from the rotating block portion by gears 78 and 79.

The motor 36 is fixed to the shaft 6 by a motor stand 66.
5 and rotates the rotating block by gears 67 and 68. FIG. 12 is a diagram showing the transition of the controller used for each camera. FIG. 13 is an operation timing chart of the camera and controller.

By operating in this manner, the number of expensive controllers can be reduced and the small number of controllers can be operated efficiently. Note that the present invention is not limited to the above embodiments. In the above embodiment, the cylindrical laminated tube T is intermittently rotated by the holder H, and the CCD camera 42 itself is fixed to the rotation block; However, the laminate tube T itself may be configured not to rotate. However, in this case, a transmitting/receiving antenna (for example, a small antenna unit 45) is required to transmit and receive image signals of the CCD camera 42 between the rotating camera side and the rotating block, which is the fixed side for the camera. It is necessary to provide one for each camera. Further, the CCD camera 42 does not need to be moved by rotation (rotation), but may be moved in other ways, such as a zigzag movement, as long as the entire inner bottom surface can be covered.

Furthermore, in this embodiment, the laminate tube T
is rotated intermittently and the quality is inspected using static images; however, it is also possible to rotate continuously and capture image information for processing and discrimination. Similar to the above, the laminate tube may move in a zigzag motion or the like instead of a rotational motion. Furthermore, in this embodiment, the laminate tube T also performs a revolution movement. This is because by doing so, it becomes possible to install an inspection process in a small space in the middle of a linear production line. However, this is not necessarily limited to orbital movement, and may be linear movement as long as it rotates intermittently while moving in one direction and a camera can be inserted.

Furthermore, in this embodiment, the CCD camera 42 is inserted into the inside of the laminate tube T by raising and lowering the laminate tube T.
The camera 42 may be inserted into the laminate tube T by being raised and lowered. In addition, in the above embodiment, the laminate tube T is a cylindrical body with a tapered end at the bottom and a takeout port in a part of the tube, but this is a cylindrical body with a closed end such as a pin or a can. A cylindrical body with a bottom may also be used.

[0029]

[Effects of the Invention] As explained above, according to the present invention,
The outer and inner surfaces of the cylindrical body can be imaged and inspected automatically at high speed, and the efficiency of the entire cylindrical body manufacturing line can be improved.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a tube inspection system using a cylindrical body inspection device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a cylindrical object inspection apparatus that is an embodiment of the present invention.

FIG. 3 is a configuration diagram of a cylindrical body inspection apparatus of the present invention.

FIG. 4 is a sectional view of the cylindrical body inspection device of the present invention.

FIG. 5 is a block diagram showing image information processing of the cylindrical object inspection apparatus detected by the CCD camera of the present invention.

FIG. 6 is an explanatory diagram of the operation of the cylindrical body inspection apparatus of the present invention.

FIG. 7 is an inspection procedure of the cylindrical body inspection device of the present invention.

FIG. 8 is a configuration diagram showing the configuration of an antenna section.

FIG. 9 is an explanatory diagram of signal generation in the cylindrical body inspection device.

FIG. 10 is a principle explanatory diagram showing the principle of generation of an NG signal when performing an external surface inspection according to the present invention.

FIG. 11 is a block diagram of an external surface inspection/discrimination device according to the present invention.

FIG. 12 is an explanatory diagram showing the transition of a controller used for each camera of the present invention.

FIG. 13 is an explanatory diagram showing the operating status of the CCD camera and controller of the present invention.

[Explanation of symbols]

1...Tube insertion section 2...Rotary tube inspection machine 3...Tube removal section 4...Transport device 5...Emergency discharge conveyor 6...Collection conveyor 7...Pusher 8...Tube insertion jig 9...Transportation conveyor 10...Timing screw 11... Star wheel 12...Rotating inspection table 13...Star wheel for discharging defective products 14...Chute for discharging defective products 15...Defective product pool 16...Joining screw 17...Distribution star foil 18...Good product conveyor 19...Stopper 20...Tube removal pick and Place 21... Stopper 22... Pitch correction jig 23... Box conveyor 24a, 24b... Box holding device 25a, 25b... Box stopper 26... Tube accumulation conveyor 27... Tube packaging device 29, 30... Empty holder conveyor 31... Merging Device 32...Empty holder transport conveyor 35...Base 36...Motor 37...Rotating shaft 38...Centering jig 39...Inner tube inspection device 40...Inner tube insertion section 41...Borescope 42, 42a to 42l...CCD camera 43...Camera Selector 44...Mixer 45...Antenna part 46...Cam 47...Cam follower 48...Holder lifting/lowering rotating shaft 49...Rotating resolver 50...Fixed resolver 51...Light amount checker 52...Borescope main body 53...Borescope insertion part 54...Light emitting diode part 55... Photosensor parts 55a to 55f...Photosensor 56...Joining metal fittings 57...Bolts 58...Stainless steel tube 59...Light source fiber part 60...Lens part 65...Fixed shaft 66...Motor stand 67, 68, 69, 70a, 70b...Gear 71 ...Shafts 72, 73 Electromagnetic shielding cover 74...Transmission antenna 75...Reception antenna 76, 77...Mounting brackets 78, 79...Gear 80...Rotating shafts 81, 82...Lead wire 84...Discrimination device 85...Rotating block 86...Fixing block 87...Cam positioner 88...Distributor 89a to 89h...Tuner 90A, 90B...Controller 91a, 91b...Monitor 92...Cam positioner 93...Failure judgment circuit 200...Tube inspection system E...Empty box F1...Inspectable area H...Holder P ...Cylindrical body P1 ...Tube position on the rotating inspection table S ...Bore squaw insertion part end face SV ...Video signal T ...Laminated tube

Claims (6)

[Claims] Claims: 1. A rotating inspection table which is equipped with a cylindrical body having a bottom surface at one end and which rotates; A rotating holder that continuously rotates the cylindrical body over a predetermined angle; and a rotating holder that continuously rotates the cylindrical body through a predetermined angle; A cylindrical body outer surface inspection means having an inspection means nearby, and a cylindrical body inner surface inspection means having an inspection means on the inner surface of the cylindrical body for inspecting the inner surface of the cylindrical body while the cylindrical body is stopped. Cylindrical body inspection device. [Claim 2] The rotation holding part that rotates the cylindrical body has 9 parts.
The cylindrical body inspection device according to claim 1, wherein the cylindrical body is rotated four times at 0 degrees, and the outer surface of the cylindrical body is inspected while the cylindrical body is rotating. 3. The cylindrical object inspection apparatus according to claim 1, wherein the inspection means processes data imaged while the rotation holding section is rotating while the rotation holding section is stopped. 4. The cylindrical body inspection apparatus according to claim 1, wherein the inspection means detects the position of a position mark marked on the outer surface of the cylindrical body using a fiber sensor. 5. The cylindrical body inspection apparatus according to claim 1, wherein the inspection means inspects each 1/4 area four times during the stoppage. 6. The cylindrical body inspection apparatus according to claim 5, wherein the inspection means comprises an imaging means, and uses data obtained by converting an image taken by the imaging means into a binary value.