JP3023003B2 - Cylindrical body inspection device - Google Patents

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 an outer surface and an inner surface of a cylindrical body.

[0002]

2. Description of the Related Art Conventionally, there has been no inspection apparatus for confirming the position of a cylindrical body using a registration mark marked on the outer surface of a cylindrical body such as a laminate tube. Visual inspection must be performed
Did not .

Further, there is no cylindrical body inspection apparatus for inspecting the inner surface of the cylindrical body as described above, and in order to inspect the outer surface and the inner surface of the cylindrical body, the inner surface inspection must be performed after the outer surface inspection.

[0004]

However, this method has a problem in that the efficiency of inspection is limited, the speed of the entire process is limited in this inspection process, and complete automation cannot be achieved.

An object of the present invention is to provide a tubular body inspection apparatus capable of simultaneously and automatically imaging and inspecting an outer surface and an inner surface of a tubular body at a high speed.

[0006]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
The invention according to claim 1 is such that a cylindrical body having a bottom surface at one end is placed thereon, and the rotating inspection table is rotated, and the cylindrical body provided on the rotation inspection table is held, and the rotation inspection table is rotated according to the rotation of the rotation inspection table. Revolving
Rotation holding unit that repeats rotation and rotation stop, and rotation holding unit
An optical sensor that revolves with the rotation holding unit and emits and receives light to and from the outer surface of the cylindrical body held by the rotation holding unit during rotation;
A cylindrical body inspection device including a light emitting unit that emits and receives light to and from the inner surface of the cylindrical body while the orbit rotates together with the holding unit and the rotation holding unit stops rotating, and a camera are employed .

[0007] The invention according to claim 2 is a method for rotating a cylindrical body.
The rotation holding unit that rotates the rotation rotates 90 degrees four times.
Request to inspect the outer surface of the cylindrical body while rotating the cylindrical body
The tubular body inspection device according to item 1 is adopted.

[0008] Further , the invention according to claim 3 is characterized in that the inspection means
The stage rotates and holds the data captured by the rotation holding unit during rotation.
2. The cylindrical body according to claim 1, wherein data processing is performed while the part is stopped.
Adopt inspection equipment.

Further , the invention according to claim 4 is characterized in that the inspection means
The step is the position of the position mark marked on the outer surface of the cylindrical body.
The cylindrical shape according to claim 1, wherein the is detected by a fiber sensor.
Adopt a physical examination device.

According to a fifth aspect of the present invention, there is provided an inspection means.
Is inspected four times in 1/4 areas during a stop.
The tubular body inspection device according to claim 1 is employed.

The invention according to claim 6 is an inspection means.
Is composed of image pickup means, and the image picked up by the image pickup means
6. The cylindrical body according to claim 5, wherein data obtained by binarizing the image is used.
Adopt a physical examination device.

[0012]

According to the cylindrical body inspection apparatus of the present invention having the above-described structure,
The cylindrical body to be inspected is held by a rotation holding unit that revolves and rotates according to the rotation of the rotation inspection table provided on the rotation inspection table. The rotation holder holds the cylindrical body and rotates while revolving.
Repeat rotation and rotation stop. An optical sensor is provided near the outer surface of the cylindrical body, and the optical sensor revolves with the cylindrical body.
While the tubular body cylindrical body that do not conform to specifications by the checked check its state is read in the label written in the outer surface of the tubular body with sensor rotation about sending a signal to that effect.

Further , the rotation holding unit stops the rotation during the revolution.
During the period, the cylindrical inner surface is imaged by the light emitting means and the camera , and the image data is binarized to find a flaw or the like on the inner surface and eliminate the cylindrical body.

In this manner, the cylindrical body of the test object is revolved.
The rotation of the cylindrical body and the stop of the rotation are repeated.The outer surface of the cylindrical body is automatically inspected during the rotation , and the inner surface of the cylindrical body is automatically inspected while the rotation is stopped. Inside and outside can be inspected.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the present invention will be described with reference to the drawings. The present embodiment discloses an example in which a cylindrical body to be imaged or inspected according to the present invention is a laminated tube.

FIG. 1 shows the configuration of a tube inspection system using an embodiment of the present invention. The tube inspection system 200 includes a tube insertion unit 1, a tubular body inspection device 2, a tube removal unit 3, a transport device 4, and an emergency discharge conveyor 5.

The tube insertion section 1 includes an accumulation conveyor 6 and
It has a pusher 7 and a tube insertion jig 8. The cylindrical body inspection apparatus 2 includes a rotation inspection table 12, a rejected star wheel 13 and a rejected discharge chute 14.
And a defective product pool 15. The tube take-out unit 3 includes a stopper 19, a stopper 21, a tube take-out pick and place 20, and a pitch correction jig 22.
, Box transport conveyor 23, and box holding devices 24a, 24b
, Box stoppers 25a and 25b, a tube accumulation conveyor 26, and a tube box packing device 27. The conveyor 4 includes a conveyor 9, a timing screw 10, a star wheel 11, a star wheel 13 for combined use of a defective product, a joint screw 16, a sorting star wheel 17, a non-defective product conveyor 18, and an empty holder conveyor. 29, an empty holder transport conveyor 30, a merging device 31, and an empty holder transport conveyor 32.

Next, the operation of the tubular body inspection device 2 will be described.

The laminating tubes T are transported from the preceding step A and are accumulated by the accumulation conveyor 6. Thereafter, a predetermined number of pieces are simultaneously extruded by the pusher 7 and placed on the holder H on the conveyor 9 by the tube insertion jig 8. The laminate tube T is transported by the transport conveyor 9 in the direction of the tubular body inspection device 2 while being placed on the holder H. When reaching the vicinity of the cylindrical body inspection apparatus 2, first, the holders H advance at predetermined intervals by a screw-shaped timing screw 10, and the rotation of the cylindrical body inspection apparatus 2 is performed by a star-shaped star wheel 11. It is placed on the inspection table 12. The rotation inspection table 12 rotates clockwise in the figure, and inspects the outer surface and the inner surface of the laminate tube T while rotating. Cylindrical body inspection device 2
The detailed configuration and operation of will be described later. As a result of the inspection, if it is determined that the product is defective, only the defective laminate tube T is taken out and discharged upward in the star-shaped defective product discharge / star wheel 13, leaving only the holder H. After passing through the chute 14, it is accumulated in the defective product pool 15. The non-defective laminated tube T and the holder H and the defective laminated tube T and the remaining holder H alone are conveyed to the distribution star wheel 17 by the screw-shaped joining screw 16. The sorting star wheel 17 places the good-quality laminate tube T and the holder H on the good-quality transport conveyor 18,
The empty holder from which the defective laminate tube T has been discharged is sorted so as to be placed on the empty holder transport conveyor 30. The non-defective product laminating tube T and the holder H transported by the non-defective product transport conveyor 18 are transported to the tube take-out unit 3 by the non-defective product transport conveyor 18. In the tube take-out section 3, first, a predetermined number of laminated tubes T and holders H are stopped by the stopper 21 and then by the stopper 19, and only the laminated tube T is taken out from the non-defective product conveyer 18 by the tube take-out pick and place 20. . Next, the pitch of these laminated tubes T is corrected by the pitch correcting jig 22, and the tube accumulating conveyor 2
6 accumulates near the tube boxing device 27. On the other hand, a box transport conveyor 23 is provided below the stacking position of the laminate tubes T, and the empty box E is transported from the previous process B. The empty box E is stopped by the box holding devices 24a and 24b and the box stoppers 25a and 25b, and is appropriately transferred to the lower part of the tube box packing device 27. The tube box packing device 27 packs the laminated laminate tubes T into empty boxes E by a predetermined number. The box that has been packed is transported to the next step C by the box transport conveyor 23. The holder H from which only the laminate tube T is taken out by the tube take-out pick and place 20 is conveyed to the merging device 31 by the empty holder conveying conveyor 29.
The empty holders sorted by the sorting star wheel 17 are also conveyed to the merging device 31. The merging device 31 has two timing screws. These empty holders are merged in a line and placed on the empty holder transport conveyor 32. The empty holder transport conveyor 32 transports the empty holder to the tube insertion unit 1 and connects the empty holder to the transport conveyor 9.

In this manner, the outer surface and the inner surface of the laminated tube T can be automatically inspected during the manufacturing process of the laminated tube T.

Next, the configuration of a tubular body inspection apparatus 2 according to an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 2, the cylindrical body inspection apparatus 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. 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 K or NG. On the other hand, twelve inspection stations E _{1 to} E ₁₂ are provided on the rotation surface of the rotation inspection table 12. The positions of the inspection stations E _{1 to} E ₁₂ are arranged on the same circumference X ₁ by dividing the rotation surface of the rotation inspection table 12 into 12 parts every 30 °.

On the other hand, 12 inspection stations E _{1 to} E
Is pencil type air cylinder 97 corresponding is arranged on the plate 98 which is disposed below the rotary inspection table 12 to _12. Air cylinder 97CY ₁ ~CY ₁₂ six concentric circles C ₁ formed at equal intervals from the center _{0, C 2, C 3,} C 4,
C ₅ and C ₆ are arranged on the plate 98 corresponding to the intersections of the straight lines drawn from the center 0 to the respective inspection stations and the concentric circles.

Further, a proximity switch 99 is arranged on the lower surface of the rotary inspection table 12, and the inspection switches E ₁ to E ₁ .
The head of the air cylinder 97 is raised by the air when an abnormality in E ₁₂ to the outer surface of the tube is found, f has risen
For head, proximity switch 9 disposed in a predetermined position
9 is detected.

The cylindrical body inspection device 2 includes a base 35,
Motor 36, rotating shaft 37, rotation test stand 12, cam 46, cam follower 47, holder elevating rotating shaft 48
And a centering jig 38 and an in-tube inspection device 39.
, A camera selector 43, a mixer 44, an antenna unit 45, a rotating resolver 49, a fixed resolver 50, a light amount checker 51 (FIG. 2), a cam positioner 87, and a discriminating device 84 (FIG. 5). Have. Here, the motor 36, the rotation shaft 37 and the rotation inspection table 12 constitute a transfer unit. The in-tube inspection device 39 constitutes an imaging unit. The above constitutes the cylindrical body imaging device 2. Further, the antenna unit 45 constitutes a signal transfer unit. The discriminating device 84 constitutes discriminating means.

A fixed shaft (not shown) is provided on the base 35, and a tubular rotary shaft 37 is provided so as to share an axis with the fixed shaft and to cover the fixed shaft. The rotating shaft 37 is configured to be driven to rotate by a motor 36. In addition, a rotary resolver 49 and a fixed resolver 50 are provided to measure the angular position between the fixed shaft and the rotating shaft 37. The rotation inspection table 12 is connected to a rotation shaft 37,
It rotates with the rotation of 7. A holder H can be placed on the rotation inspection table 12. The holder H is moved up and down and rotated by a holder elevating rotary shaft 48. The elevating operation of the holder elevating rotary shaft 48 is performed by a cam 46 and a cam follower 47 provided at the lower end of the holder elevating rotary shaft 48. The squeeze port side of the laminate tube T can be inserted into the holder H. A centering jig 38 for holding the tail side of the laminate tube T in a circular shape is supported above the holder H. Next, referring to FIG. 3, the in-tube inspection device 39 for inspecting the inside of the laminate tube T has an in-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
Are the borescope insertion section 53 and the light emitting diode section 54
And a photo sensor unit 55. this house,
The borescope insertion portion 53 mainly inspects the inner bottom surface side of the laminate tube T in the drawing, that is, the squeeze port side, and the light emitting diode portion 54 and the photo sensor portion 55 mainly inspects the inner side surface of the laminate tube T. The tubular body inspection device 2 is provided with twelve in-tube inspection devices 39, a cam follower 47 and a holder elevating rotary shaft 48.
12 are also provided. These numbers are not limited to 12, and may be other numbers. Each in-tube inspection device 39 is connected to the camera selector 43 by a lead wire,
The camera selector 43 is connected to a mixer 44. The mixer 44 is connected to the antenna unit 45. The antenna unit 45 is connected to the determination device 84.

Next, the operation of the cylindrical body inspection apparatus 2 will be described with reference to FIGS.

In FIG. 2, a laminate tube T is placed on a holder H and transported to a star wheel 11 by a transport conveyor 9 or the like. The star wheel 11 takes the laminated 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 on the rotating inspection table 12, the holder H moves up and down according to the cam curve of the cam 46 along with the elevation of the holder elevating and rotating shaft 48, and around the axis of the holder elevating and rotating shaft 48. Intermittently rotate. That is, as shown in FIG. 6, but the holder H performs rotation in the inspection position while revolving in the direction of rotation of the rotating inspection table 12, the diagram P _1,
Only angles A, B, C, and D from fixed points P ₂ , P ₃ , and P ₄
During the revolution, rotation stops . As described above, the inner surface of the laminate tube is inspected while the rotation is stopped for a predetermined time from P ₁ , P ₂ , P ₃ , and P ₄ . That is, while the rotation (rotation) of the laminate tube T is stopped in the regions A, B, C, and D in the figure, the inner surface of the laminate tube T is inspected one by one at 90 ° divided into four regions. The laminate tube T is also raised by the raising of the holder H, and the in-tube insertion portion 40 of the in-tube inspection device 39 is inserted into the inside of the tube held by the centering jig 38 in a circular shape. At the same time, the optical sensor for cylindrical body inspection is brought into a state of starting inspection. Further, in such a state, the laminate tube T is connected between the angles R _{1 to} R ₄ by 9 degrees.
By performing the rotation by 0 ° at a time, the outer surface of the tube can be inspected in the rotation region of 90 ° during the rotation (FIG. 7). When the inspection of one tube is completed, the defective laminate tube T is discharged by the defective discharge / star wheel 13 described above, and the non-defective laminate tube T is transported in the direction of the tube take-out section 3. Further, before the insertion portion 40 in the tube is inserted into the inside of the laminate tube T, the light amount of the light emitting portion is checked by the light amount checker 51, and the result is reflected at the time of data processing. Further, when the light amount is equal to or less than the reference value, an alarm can be issued to replace parts.

Here, the outer surface inspection method will be described in more detail with reference to FIG. First, in FIG. 9A , a position mark 100 as a registration mark is written at a predetermined position on the laminate tube, and the lower end of the position mark 100 is detected by the optical sensor 95, and nothing is detected by the optical sensor 96. If not, that is, in the case as shown in FIG. 9B (a), the value is assumed to be a normal value (1, 0). In other cases, it is determined that the position mark 100 is shifted, that is, the entire laminate tube is shifted, and the binarized data is generated as shown in (b), (c), and (d) of FIG. It is supposed to. Next, referring to FIG. 6, in the inspection section, the area divided into four during the inspection is located on the outer surface.
If the deviation of the position mark is found, for example, by supplying air to the air cylinder CY ₁₁ if found defective position mark during rotation region R ₂ in the inspection station E _11, the head of air cylinder CY ₁₁ To rise.
Head of the air cylinder CY ₁₁ is directly rotated in a state of being raised. On the other hand, as shown in FIG.
In the upper circumferences C ₁ and C ₂ , the circumferential direction of the rotary inspection table 12 is divided into four at every 90 °, and the positions thereof are projected portions (thick solid lines).
Show. ) And a plane portion (indicated by a broken line), and a position divided into four portions by a combination of the position display portions of the circumferences C ₁ and C ₂ divided by 90 °. Is available. According to the above example of CY _11, the position display unit, the circumference C _1, C ₂ both have a convex portion. Furthermore, the head of the air cylinder CY ₁₁ is rotated to the position of the proximity switch 99 which is fixed in a state of elevated. In this case, bits are set for A, B and E among A, B, C, D, E and F constituting the proximity switch 99. Whereby the laminate tube as a tubular body placed in the inspection station E ₁₁ is eliminated.

FIG. 10 (b) is a timing chart for performing inspection after rotating and performing image processing when stopped.

Next, with reference to FIG. 11, an electrical configuration of a cylindrical body outer surface inspection apparatus for performing an outer surface inspection using signals from a pair of optical fiber sensors 1 and 2 will be described.

Firstly it will be described based on the above example, E ₁₁
The signals from the optical fiber sensors 1 and 2 in which NG is formed are sent to the ultra-compact PC 6, and the start signal from the cam positioner 92 and the inspection pulse are sent at the same time. Next 4
Select switches 102a, 102b, 102c,
Select switches 102a, 102
b, 102c, 102d inspection station 1,
5, 9 and 2, 6, 10, 2, 7, 11 and 4, 8,
If any of the 12 sets is NG, the NG signal is selectively sent to one video selector 43. When an NG signal is generated, when an image is selected by the select switch 102a,
Generate an NG signal. Therefore, in the case of the above example,
Signal from the inspection station E ₁₁ in Figure 11 is sent to PC6 when there is an NG CY ₁₁ in E ₁₁ PC6
To the select switch 102c, and at the same time, a determination signal NG is output and sent to the video selector 43c.

On the other hand, the processing of the inspection information detected by the tube inner inspection device 39 will be described. 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,
Inspection information on the inner surface of the laminate tube T detected in 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 on the inner bottom surface of the laminate tube T detected by the CCD camera 42.

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

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

The image information of the inner surface and the bottom surface of the laminate tube T from each of the CCD cameras 42a to 42l is identified by the camera selector 43 as to the camera to which information is to be taken from the angular position of the rotary inspection table 12 detected by the rotary resolver 49. Select and import only image information from that camera,
The signal is transmitted to the mixer 44. As is apparent from FIG. 6, when a laminate tube T has reached the point P ₄ is already the point P _3, the point P _2, subsequent laminated tubes T to the point P ₁
, The image information from the four cameras is taken in at the same time. The mixer 44 modulates and mixes these four pieces of image information with a predetermined carrier plate, and outputs them to the transmission antenna 74. The mixed image information is transmitted from the transmission antenna 74 to the reception antenna 75. The transmitting antenna 74 and the receiving antenna 75 are provided with an electromagnetic shielding cover 72.
And an electromagnetic shielding cover 73 for electromagnetic shielding. The mixed image information received by the receiving antenna 75 is divided into frequency bands by the distributor 88 and sent to the tuners 89a to 89h to detect information signals. Among the tuners 89a to 89h, the tuner 89a
Information signals from .about.89d are sent to the controller 90A. Information signals from the tuners 89e to 89h are sent to the controller 90B. Controller 90A, 9
OB is monitored by the monitors 91a and 91b. While the cam positioner 92 specifies the camera number from the detected angular position of the rotation inspection table 12 and transmits it to the defect determination circuit 93,
The cam positioner 92 issues a select signal to the controller 90A or the controller 90B to select a signal to be sent to the failure determination circuit 93 from among information signals from the tuners. The failure determination circuit 93 determines whether or not there is a failure based on the image information signal from each camera and outputs the failure to the outside. Good
The defect is determined by, for example, binarizing the image information signal based on brightness and determining the number of pixels in the dark area. On the other hand, the signal from the outer surface inspection apparatus receives signals from the sensors 95 and 96, and the determination circuit determines OK or NG, and if OK, sends a signal from the inspection station corresponding to the video selector 43, and In this case, an NG signal is sent to the video selector.

[0037] Once again with reference to the timing chart of FIG. 7, easily inspected by the first quarter-turn region R ₁ of the laminated tubes Summarizing the present invention the first quarter region the outer surface of the outer surface inspection system And then laminate tube T
Inspection of the first inner surface area is performed by the inner surface inspection device during the period A during which the rotation is interrupted. Next, the second speed region R ₂ checks the position mark on the outer surface of the second quarter area, examining the inner surface of the second region between B are interrupted following rotation.
After repeating the combination of the outer surface inspection and the inner surface inspection four times, the inspection of the entire 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.
This will be described with reference to FIG. Here, a hatched portion shows an example of a fixed block. The antenna unit 45 includes a transmitting antenna 74.
And a receiving antenna 75, an electromagnetic shielding cover for electromagnetically shielding these antennas, an electromagnetic shielding cover, mounting brackets 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 mounted on the rotating block side, and the receiving antenna 75 is mounted on 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 are always opposed to each other, can stably transmit and receive information signals, and are electromagnetically shielded by the electromagnetic shielding cover 72 and the electromagnetic shielding cover 73, so that they are affected by external noise. And does not become an external noise source.

FIG. 4 shows an example of the configuration of the rotary resolver 49 and the fixed resolver 50. A resolver is a device that gives angular position information such as a rotation axis by an electric signal. As shown, the rotating resolver 49 is a resolver for detecting angular position information on the rotating block side, and the resolver body is attached to the rotating block side. Shaft 71 serving as reference for rotation
Is configured to indicate the same angular position as the fixed shaft 65 by the gears 69, 70a, 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 configuration, the shaft 71 always shows the same angular position as the fixed shaft 65. The fixed resolver 50 is a resolver for detecting angular position information on the fixed side, and the resolver body is mounted on the fixed block side. The rotation of the rotation shaft 80 is transmitted from the rotation block unit by the gear 78 and the gear 79.

The motor 36 is fixed to the fixed shaft 6 by a motor base 66.
5 and the rotating block is rotated by the 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 the controller.

By operating as described above, the number of expensive controllers can be reduced and a small number of controllers can be operated efficiently.

The present invention is not limited to the above embodiment. In the above embodiment, the cylindrical laminated tube T is rotated intermittently by the holder H,
The D camera 42 itself was fixed to the rotating block,
Conversely, the CCD camera 42 itself may rotate intermittently, and the laminate tube T itself may not rotate. However, in this case, a transmitting / receiving antenna (for example, a small antenna unit 45) for transmitting / receiving between the camera side rotating the image signal of the CCD camera 42 and the rotating block fixed to the camera is provided. It must be provided for each camera. The movement of the CCD camera 42 is not limited to the rotation (rotation) movement, but may be any other movement, for example, a zigzag movement as long as the entire inner bottom surface can be covered.

In this embodiment, the laminate tube T
Is rotated intermittently, and the quality is inspected based on the image at the time of rest. However, it is also possible to rotate the image continuously, take in the image information, and perform the discrimination. It is the same as the above that the way of movement of the laminate tube may be a zigzag movement instead of the rotation movement.

In this embodiment, the laminating tube T is also revolving. By doing this,
This is because the inspection process can be installed in a small space between the linear manufacturing lines. However, this is not necessarily limited to the orbital motion, and may be a linear motion or the like as long as the camera can be intermittently rotated while moving in one direction and the camera can be inserted.

Further, in this embodiment, the laminate tube T is moved up and down so that the CCD camera 42 is inserted into the inside of the laminate tube T.
The camera 42 may be moved up and down to be inserted into the laminate tube T.

In the above embodiment, the laminated tube T is a cylindrical body having a tapered bottom end and a take-out port at a part thereof. It may be a bottomed cylindrical body such as a can.

[0049]

As described above, according to the present invention,
A cylindrical body having a bottom surface at one end is placed and rotated to rotate.
It holds the cylindrical body provided on the inspection table and rotation inspection table, and rotates
Repeats rotation and rotation stop while revolving according to the rotation of the inspection table
Rotation holding part to return, and rotation holding part revolving with rotation holding part
Faces the outer surface of the cylindrical body held by the rotation holder during rotation.
Revolves with the optical sensor that emits and receives light and the rotation holding unit
While the holding part has stopped rotating, throw it on the inner surface of the cylindrical body.
Cylindrical body inspection device provided with light emitting means for receiving light and camera
Therefore, even if the cylindrical body is an opaque body,
And the inner surface can be inspected. In addition, the rotation inspection table
High speed inspection because of continuous rotation.
The efficiency of the entire production line can be improved. further,
Take an image with the camera while the rotation holding unit stops rotating
Therefore, it is possible to accurately detect images and increase inspection accuracy
You.

[Brief description of the drawings]

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

FIG. 2 is a configuration diagram of a cylindrical body inspection apparatus according to an embodiment of the present invention.

FIG. 3 is a configuration diagram of a tubular body inspection device of the present invention.

FIG. 4 is a cross-sectional view of the tubular body inspection device of the present invention.

FIG. 5 is a block diagram showing image information processing of the tubular body inspection device detected by the CCD camera of the present invention.

FIG. 6 is an operation explanatory view of the tubular body inspection device of the present invention.

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

FIG. 8 is a configuration diagram illustrating a configuration of an antenna unit.

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

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

FIG. 11 is a block diagram of the outer surface inspection determining apparatus of the present invention.

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

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

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Tube insertion part 2 ... Rotary tube inspection machine 3 ... Tube take-out part 4 ... Conveyer device 5 ... Emergency discharge conveyor 6 ... Collecting conveyor 7 ... Pusher 8 ... Tube insertion jig 9 ... Conveyer 10 ... Timing screw 11 ... Star wheel 12 ... Rotation inspection table 13 ... Star wheel combined with defective product discharge 14 ... Chute for defective product discharge 15 ... Defective product pool 16 ... Splice screw 17 ... Distribution star wheel 18 ... Good product transport conveyor 19 ... Stopper 20 ... Tube removal pick and Place 21 ... Stopper 22 ... Pitch correction jig 23 ... Box transport conveyor 24a, 24b ... Box holding device 25a, 25b ... Box stopper 26 ... Tube accumulation conveyor 27 ... Tube box packing device 29, 30 ... Empty holder transport conveyor 31 ... Merge Equipment 32: Empty holder transport Conveyor 35 ... base 36 ... motor 37 ... rotating shaft 38 ... centering jig 39 ... tube inspection device 40 ... tube insertion part 41 ... borescope 42, 42a to 42l ... CCD camera 43 ... camera selector 44 ... mixer 45 ... Antenna part 46 ... Cam 47 ... Cam follower 48 ... Holder elevating rotary shaft 49 ... Rotating resolver 50 ... Fixed resolver 51 ... Light quantity checker 52 ... Borescope main body 53 ... Borescope insertion part 54 ... Light emitting diode part 55 ... Photo sensor part 55a to 55f ... Photo sensor 56 ... Joint fitting 57 ... Bolt 58 ... Stainless steel tube 59 ... Fiber part for light source 60 ... Lens part 65 ... Fixed shaft 66 ... Motor base 67,68,69,70a, 70b ... Gear 71 ... Shaft 72,73 Shield cover 74 Transmitting antenna 75 Transmission antennas 76, 77 ... Mounting brackets 78, 79 ... Gears 80 ... Rotating shafts 81, 82 ... Lead wires 84 ... Discriminating devices 85 ... Rotating blocks 86 ... Fixed blocks 87 ... Cam positioners 88 ... Distributors 89a to 89h ... Tuners 90A 90B ... Controllers 91a, 91b ... Monitor 92 ... Cam Positioner 93 ... Defect Judgment Circuit 200 ... Tube Inspection System E ... Empty Box H ... Holder S ... Borescope Insertion Section End Face _SV ... Video Signal T ... Laminated Tube

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G01N 21/90 G01B 11/24 G01N 21/84 H04N 7/18

Claims (6)

(57) [Claims] 1. A cylindrical body having a bottom surface at one end is placed,
The rotating inspection table and the cylindrical body provided on the rotation inspection table are held, and revolve and rotate according to the rotation of the rotation inspection table.
A rotation holding unit that repeats rotation stop and a public
An optical sensor for transmitting and receiving light to and from the outer surface of the cylindrical body held by the rotation holding unit during the rotation and rotation of the rotation holding unit;
A light emitting unit and a camera for projecting and receiving light to and from the inner surface of the cylindrical body while the revolving and rotation holding units stop rotating .
A cylindrical body inspection device , characterized in that: 2. A rotary holding section for rotating a cylindrical body, comprising:
The cylindrical body inspection device according to claim 1, wherein the cylindrical body is rotated four times, and the outer surface of the cylindrical body is inspected while the cylindrical body is rotating. 3. The cylindrical body inspection apparatus according to claim 1, wherein the inspection unit performs data processing on data captured while the rotation holding unit is rotating while the rotation holding unit is stopped. 4. The cylindrical body inspection apparatus according to claim 1, wherein said inspection means detects a position of a position mark marked on an outer surface of the cylindrical body by a fiber sensor. 5. The inspection means, while stopped, outputs four quarter regions at a time.
2. The cylindrical body inspection apparatus according to claim 1, wherein the inspection is performed repeatedly. 6. The cylindrical body inspection apparatus according to claim 5, wherein the inspection unit includes an imaging unit, and uses data obtained by binarizing an image captured by the imaging unit.