JP3179584B2 - Discharge device for 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 discharge device for a cylindrical body inspection apparatus, and more particularly to a cylindrical body inspection apparatus for discharging a test object held by a holder and conveyed according to its quality. The present invention relates to a device discharging device.

[0002]

2. Description of the Related Art Hitherto, as a method of inspecting defects such as scratches and dust on the inner surface of a tubular body (hereinafter referred to as a tubular body) such as a laminated tube, a visual inspection method by a human has been mainly used. However, this visual inspection method has a limit in inspection efficiency, and even if the other manufacturing process of the cylindrical body is automated and accelerated, the speed of the entire manufacturing device is limited by this visual inspection process, and There was a problem that complete automation could not be achieved. Therefore, the applicant of the present application firstly holds the cylindrical body on a rotating body that revolves, and sequentially inspects the inner surface of the cylindrical body with an imaging device that rotates on its own, and inspects the quality of the inner surface at high speed and automatically. (Hereinafter referred to as a tubular body inspection device) (Japanese Patent Application No. 02-327177, Japanese Patent Application No.
No. 327178, Japanese Patent Application No. 03-217084, etc.).

Here, when inspecting the cylindrical body with the cylindrical body inspection apparatus, the cylindrical body is inserted upright into a short cylindrical holder and conveyed by a conveyor, and the cylindrical body and the holder are integrated. In this state, it is relayed to the tubular body inspection device by the relay device (star wheel). Then, the cylindrical body and the holder are combined and revolve along the circular orbit of the inspection device,
During this revolution, the inner surface inspection of the cylindrical body is performed, and the quality of the inner surface is determined. At the time of this inner surface inspection, a positioning ring is externally fitted to the tip of the object to be inspected, so that a rod-shaped imaging device (borescope) is securely inserted.

[0004] After the inspection, the cylindrical body and the holder are transferred from the inspection device to the discharge device, and are conveyed to the next process according to the quality.

[0005]

However, when the inner surface inspection is completed, the positioning ring is detached from the tip of the object to be inspected, and the vertically long cylindrical body and the holder are in an unstable state. Even in such an unstable state, it is desired to reliably transfer the cylindrical body and the holder from the inspection device to the discharge device.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned demand, and a cylindrical body inspection apparatus for reliably transferring a cylindrical body held in a holder for which quality has been determined from an inspection apparatus to a discharger. The purpose of the present invention is to provide a discharge device.

[0007]

In order to achieve the above object, the present invention provides an inspection apparatus for inspecting while revolving along a circular orbit while holding a cylindrical object to be inspected by a holder. In a discharge device of a cylindrical body inspection device configured to discharge a test object determined to be defective by the inspection device from a predetermined conveyance path, the inspection device includes a rotating body that rotates about an axis. An adsorber that is attached at a predetermined interval in a circumferential direction of the rotating body and adsorbs the object to be inspected at a transfer position that intersects a circular track of the inspection device; And a holding device for pressing the object to be inspected from the side opposite to the adsorbing body, wherein the adsorbing body is configured to be able to move up and down on the peripheral surface of the rotating body.

[0008]

The object to be inspected is inspected on its inner surface while being held by the holder and revolving along the circular orbit of the inspection apparatus.
The suction body attached to the rotating body suctions the test object after the inspection at the delivery position that intersects the circular orbit of the inspection device.
Since the presser presses the test object from the opposite side to the suction body at the transfer position, the test object is firmly sucked to the suction body. Then, the adsorbent that has adsorbed the test object is moved up and down on the peripheral surface of the rotating body, pulls out the test object from the holder when ascending, suctions only the test object, and opens the adsorbent at a predetermined position. For example, let it fall.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. FIG. 1 shows a perspective view of the overall configuration of an embodiment of the present invention.

As shown in FIG. 1, the discharge device of the cylindrical body inspection apparatus includes an inspection apparatus 1 for inspecting the inner surface of the cylindrical body, and a supply apparatus for conveying an untested inspection object (laminate tube). 2, a discharge device 3 for separating and discharging the test object inspected by the inspection device 1 according to the quality, a holder h alone after the defective test object is extracted, and a non-defective test object. Dividing device 4 for separating a body and a combination of holders
And a star wheel 5 that relays the inspection object 6 supplied by the supply device 2 to the inspection device 1.

The supply device 2 comprises a conveyor 7 and a semicircular guide plate 8 and the like, and the test objects 6 vertically inserted into the short cylindrical holder h on the conveyor 7 are sequentially conveyed at regular intervals. Will be. The guide plate 8 is disposed along the star wheel 5 rotated by the motor 9, and guides the transported holder h and the inspection object 6 to a predetermined position of the inspection device 1.

The inspection apparatus 1 includes a base 10 on which various members are placed, a rotating shaft (not shown), and a relayed holder h.
And positioning plate 1 for positioning inspection object 6
3, a guide frame 12 disposed around the positioning plate 13, a test object positioning ring 15 for positioning the test object 6 and allowing a borescope 14 described below to be reliably inserted, The rotating gear 1 on which the mounted holder h and the test object 6 are placed and rotated.
1, a borescope 14 inserted into the object 6 to inspect the inside thereof, a signal transmitting / receiving device 17 for transmitting / receiving an image signal after inspection to / from the outside, and a top plate on which various devices used for the signal transmitting / receiving are mounted. 16 and a holding device 3 for holding the inspection object 6
0 (see FIGS. 2 and 3) and the like.

As shown in FIG. 3, the pressing device 30
A rotating shaft 37 is pivotally attached to the positioning plate 13 of the inspection device 1 at a fixed interval, and one end of a link 33 is fixed to the rotating shaft 37, and a stop bar 34 is attached to the other end of the link 33.
Are protruding. The stop bar 34 stops the rotation of the holding plate 35 described below at a predetermined position. The lower end of the rotating shaft 37 is fixed to the base end of the operating lever 31 whose tip engages with the cam surface 32, and the operating lever 31 and one end of the link 33 are fixed. The base 35 a of the holding plate 35 is fixed to the upper end of the rotating shaft 37. A holding member 36 for holding the test object 6 is attached to the center front surface of the holding plate 35, and an attachment portion 35 b for locking one end of a tension spring 38 is formed above the base 35 a. A mounting lug 35c is formed on the back side of the other end of the holding plate 35, and the other end of the tension spring 38 is locked to the mounting lug 35c. That is, the holding plate 35 is constantly urged clockwise by the tension spring 38, and is stopped at a predetermined position by the stop bar 34 as described above. When the inspection device 1 rotates in the direction of the arrow X (clockwise) and the individual rotation shafts 37 reach predetermined positions, the operation lever 31 is rotated counterclockwise along the cam surface 32. The holding member 36 also rotates counterclockwise by the counterclockwise rotation of the operation lever 31, and the holding member 36 abuts against the side surface of the inspection object 6, and moves the inspection object 6 from the rear side to the left in FIG. 2. Hold down. As described above, the test object 6 is pressed to the left by the pressing member 36, so that the test object 6 is reliably sucked by the suction body 24 described below.

As shown in FIG. 2, the discharging device 3 includes a rotating body 27 adjacent to the inspection device 1 and to which various members described below are attached. That is, the rotating body 27 includes upper and lower star wheels 21 and 22 for relaying the inspection object 6 revolving clockwise on the inspection apparatus 1.
And a rail 23 fixed between the upper and lower star wheels 21 and 22 in the vertical direction, and an adsorbent 24 having a U-shaped cross section arranged to move vertically on the rail 23.
And a suction cup 25 disposed in a concave portion of the suction body 24.
Etc. are provided. The suction cup 25 is connected to the vacuum head 20 via a vacuum pipe 26. A cam C is formed in a spiral shape on the peripheral surface of the rotating body 27, and an engaging projection 24a formed on the back surface of the suction body 24 (see FIG. 4).
Are engaged. In front of the lower star wheel 22, a chute 4 for dropping the test object 6 determined to be defective.
A discharge box 41 for accommodating the defective test object 6 is disposed at the tip of the chute 40 (see FIG. 1). A first diverter 55 is arranged from the back of the lower star wheel 22 to the left. A sensor 57 for detecting whether or not the test object 6 is inserted into the holder h is provided on a front side surface of the first branch conveyor 55. The sensor 57 includes a light emitting unit and a light receiving unit. When the device under test 6 is inserted into the holder h, light from the light emitting unit to the light receiving unit is shielded by the device 6 to be tested. When the light is not inserted into the holder h, the light is received by the light receiving unit. In this way, it is determined whether or not the test object 6 has been inserted.

The diverter 4 includes a first diverter 55
And a vacuum disk 50 disposed above the rotary disk 54 disposed on the near side. Adsorbers 51 having a U-shaped cross section are attached at predetermined intervals along the outer periphery of the rotating disk 54, and a suction cup 52 is provided at the center of a concave portion of the adsorber 51.
Is connected to a vacuum head 50 via a vacuum pipe 53. On the front side of the flow dividing device 4, a second flow dividing conveyor 56 that conveys the test object 6 and the holder h determined to be good products.
Are arranged.

Next, the operation of the embodiment configured as described above will be described. As shown in FIG. 1, the test object 6 inserted into the holder h is conveyed on the conveyor 7 at substantially constant intervals. The transported holder h and the test object 6 are supported by the concave portion of the star wheel 5 rotating counterclockwise, and guided to the inspection device 1 along the guide plate 8. When the guided holder h and the test object 6 are dropped into the concave portion of the positioning plate 13 and mounted on the rotary gear 11, the borescope 14 is inserted into the test object 6, and the revolution of the inspection apparatus 1 is performed. At the same time, the inspection object 6 rotates by the rotation of the rotating gear 11, and the inner surface of the inspection object 6 is imaged. At the time of this imaging, an imaging signal of the inner surface of the test object 6 is
The signal is transmitted via a signal transmitting / receiving device 17 to an inner surface determination device (not shown) that determines the quality of the external body surface of the subject.

When the revolved holder h and the test object 6 are conveyed to a position facing the discharge device 3, the adsorbent 24 and the test object 6 of the discharge device 3 rotating counterclockwise.
Is synchronized with a control device (not shown), and the inspection object 6 is sucked by the suction cup 25. At the time of this suction, as shown in FIG.
2, the holding plate 35 rotates in the forward direction, and the holding member 36 holds down the side surface of the test object 6. Then, as shown in FIG. 4, the inspected body 6 is pressed against the adsorbent 24 by the side surface of the inspected body 6 by the pressing member 36, so that the adsorbed body 24 surely adsorbs the inspected object 6. That is, the relay and transfer of the holder h and the inspection object 6 from the inspection device 1 to the discharge device 3 are performed reliably.

The suction member 24 that has absorbed the holder h and the test object 6 gradually rises on the rail 23 along the cam C formed along the peripheral surface of the rotating body 27, and the rear surface of the discharge device 3 To the side. The trajectory of the adsorbent 24 at the time of this rotational conveyance is indicated by reference numeral 3a in FIG. It should be noted that reference numerals A to
The adsorbent 24 is at the highest position between the symbols B, and is at the lowest position at the position of the symbol D.

On the other hand, a pass / fail judgment signal is sent from the inner surface judging device to the discharge device 3, and if the inspected object 6 is a good product, a good product signal is sent. Is released, the non-defective holder h and the test object 6 are placed on the first branch conveyor 55 and conveyed to the left. When a defective signal is transmitted from the inner surface determination device, the holder h is placed on the first shunt conveyor 55 at the position indicated by the symbol A in FIG. The adsorbent 24 rises along the rail 23 (see FIG. 2) of the discharge device 3 to separate the holder h from the test object 6 (see FIG. 6), and only the holder h is in the first position.
It is conveyed leftward on the diversion conveyor 55 and stored in a holder storage box (not shown). On the other hand, the test object 6 separated from the holder h is rotatably transported onto the chute 40, where the suction state is released. Then, the test object 6 falls on the chute 40 and is stored in the discharge box 41.

The sensor 57 determines the combination of the holder h and the test object 6 transported on the first branch conveyor 55 or the holder h from which the defective test object 6 is pulled out. That is, this discrimination signal is sent to the flow dividing device 4, and the suction cup 52 of the suction body 51 sucks the holder h of the combination of the holder h and the test object 6, and is rotated and conveyed onto the second branch flow conveyor 56. Here, the suction state is released. Then, the non-defective holder h and the inspection object 6
Are transported on the second branch conveyor 56 and transported to the next step (not shown). Further, the holder h from which the test object 6 has been pulled out is conveyed leftward on the first branch conveyor 55 and sent to the next step.

[0021]

As described above, according to the present invention, when the test object is transferred from the inspection device to the discharge device, the test object is pressed against the adsorbent by the holding device. The test object is reliably adsorbed by the adsorbent, and the transfer of the test object from the inspection device to the discharge device is reliably performed.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a discharge device and a flow dividing device in the embodiment.

FIG. 3 is an enlarged perspective view of a holding device in the embodiment.

FIG. 4 is an enlarged perspective view of a case where an object to be inspected is pressed against an adsorbent by the pressing device.

FIG. 5 is a view showing a locus of an adsorbent in the embodiment.

FIG. 6 is a diagram showing a state in which a defective inspection object is selected in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Inspection apparatus 2 ... Supply apparatus 3 ... Discharge apparatus 4 ... Dividing apparatus 6 ... Inspection object 14 ... Borescope 24 ... Adsorbent 30 ... Holding apparatus 35 ... Holding plate 36 ... Holding member 40 ... Chute 55 ... First shunt conveyor 56: 2nd branch conveyor

Continuation of front page (56) References JP-A-56-136722 (JP, A) JP-A-4-194734 (JP, A) JP-A-4-194733 (JP, A) JP-A-5-52758 (JP) JP-A-4-6079 (JP, A) JP-A-1-133715 (JP, A) JP-A-2-21811 (JP, A) JP-A-56-7054 (JP, U) (58) Field surveyed (Int.Cl. ⁷ , DB name) G01N 21/84-21/958 B65G 47/80-47/96

Claims (1)

(57) [Claims] 1. An inspection device for inspecting a cylindrical object to be inspected while revolving along a circular orbit while holding the cylindrical object by a holder, and the inspection object determined to be defective by the inspection device. A cylindrical body inspecting apparatus configured to eject the rotating body from a predetermined conveying path, wherein the inspecting apparatus is attached to a rotating body that rotates about an axis and at a predetermined interval in a circumferential direction of the rotating body. ,
An adsorbent for adsorbing the object to be inspected at a delivery position intersecting a circular orbit of the inspection device; and a presser device provided on the inspection device side and pressing the object to be inspected from the opposite side to the adsorbent at the delivery position. A discharge device for a tubular body inspection device, comprising: a suction unit configured to move up and down on a peripheral surface of the rotating body.