JPH09248643A - Can winding inspection device - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide a can winding inspection device capable of easily and accurately inspecting a can winding state. SOLUTION: An abutting member 35 is arranged to face a peripheral edge of a bottom portion (upper end in FIG. 1) of a can 1, and the abutting member 35 is moved and driven in an axial direction of the can 1 to abut against the peripheral edge of the bottom portion of the can 1. The air cylinder 30, the reflective laser sensor 40 that detects the axial position of the contact member 35 when the contact member 35 contacts the peripheral edge of the bottom of the can 1, and the can with which the contact member 35 contacts. X-ray emitting means 91 for emitting X-rays X1 toward the winding portion 4 of the can 1 at the same angular position around the axis of 1, and X-rays for receiving the X-rays X1 transmitted through the winding portion 4. And a camera 92.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a can winding inspection device for inspecting a winding state of a can formed by winding a can lid around an open end of a can body.

[0002]

2. Description of the Related Art A can 1 such as a coffee can comprises a can body 2 and a can lid 3 as shown in FIG. 14, and the can lid 3 is attached to the can body 2 at an open end (see FIG. 14 bottom) flange 2
It is performed by winding a curl portion 3a around the peripheral edge of the can lid 3 around a. The winding of the can lid 3 around the can body 2 must be performed without fail in order to prevent invasion of various bacteria from the winding portion 4.

Therefore, conventionally, the winding state of the can 1 is inspected, and a check required portion in the winding process of the can 1 is detected based on the winding state.
Then, by checking that portion, the occurrence of the can 1 having a poor winding tightening is prevented.

In the inspection of the winding tightening state of the can 1, the height of the can 1 is measured in addition to the measurement of the dimensions of each portion of the winding tightening portion 4. In order to ensure accuracy, the height measurement of the can 1 should be the height CaH at the same angular position as the angular position around the can axis of the cross section of the winding portion 4 to be measured. The height CaH of the can 1 is an important factor in clarifying the check required portion in the winding tightening process.

By the way, conventionally, such a winding tightening state inspection has been performed by manually measuring the dimensions of each can. For example, the can height is generally measured with a caliper, the outer dimension of the winding portion 4 is measured by a seaming scale, a micrometer, or the like, and the inner dimension is measured by the winding portion 4. It was done by cutting out a part and enlarging the section of the section with a projector. Recently, a method of measuring the dimensions of each portion of the winding fastening portion 4 by X-ray measurement has also been proposed. With this method, the internal dimensions of the winding fastening portion 4 can be measured nondestructively, and further, the winding fastening portion 4 can be measured. Since the external dimensions and internal dimensions of can be measured at the same time, the dimension measurement is simplified.

[0006]

However, even in such a method, since the height measurement of the can 1 and the dimension measurement of the winding tightening portion 4 must be separately performed before, the work is complicated. However, there is a problem that work efficiency is not good. Further, the worker must find out a check required portion in the winding tightening process from the height CaH of the can 1 and the respective dimensions of the winding tightening portion 4 thus detected,
Accurate detection of the check required portion requires a long experience and skill, and even such a skilled worker sometimes lacks accuracy. Therefore, there is a demand for a simpler and more accurate method of detecting a check-needed portion.

SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a can winding tightening inspection device capable of simply and accurately inspecting the can winding condition.

[0008]

According to a first aspect of the present invention, there is provided a canning inspection device for inspecting a canning state in which a can lid is wound around an opening end of a can body. There
An abutting member arranged to face the peripheral edge of the bottom of the can, an abutting member movement driving means for moving the abutting member in the axial direction of the can and abutting the peripheral edge of the bottom of the can, and the abutting member A can height detecting means for detecting the axial position of the abutting member when the abutting member comes into contact with the peripheral edge of the bottom portion, and the can winding at the same angular position as the angular position around the axis of the can with which the abutting member abuts. The means for solving the above-mentioned problems is provided with an X-ray emitting means for emitting X-rays toward the portion and an image receiving means for receiving the X-rays transmitted through the tightening portion.

In the can tightening inspection device according to claim 2,
The can winding inspection device according to claim 1, wherein the image receiving means and the can height detecting means are connected to the winding inspection control means, and the winding inspection control means is based on the image information of the received X-ray. Then, based on the image analysis unit that detects the dimensions of the winding tightening unit and the position and the position of the contact member that is detected by the can height detection unit, it is determined whether the dimensions and the height of the can are good or bad. , A check item detection unit for detecting a check item in the can winding process based on a combination of good and bad dimensions and can height, and a display for displaying the check item on the winding inspection control means. The means to be connected was taken as the means for solving the above problems.

In the can tightening inspection device according to claim 3,
The can winding inspection device according to claim 1 or 2, wherein the can height detecting means includes a reflection type laser sensor, and the abutting member is vertically provided with a can type detecting means for transmitting light in a horizontal direction. The can height detecting means and the contact member movement driving means are both provided on the moving frame, and the moving frame moves downward when the light of the can type detecting means passes over the can and is transmitted to the moving frame. The frame moving and positioning driving means for moving and positioning is provided as the means for solving the above problems.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing an embodiment of a can winding tightening inspection device of the present invention, and this can winding tightening inspection device 100 has a base 10. On the upper surface of the central portion of the base 10, a can pressing member 11 having an outer peripheral surface as an arcuate can pressing surface 11a is provided with the can pressing surface 11a facing rightward, that is, rightward in FIG. 6, as shown in FIG. Have been installed. On the upper surface of this base 10, can 1 (capacity 250 cc
Can 1A or 350cc can 1B or 500cc can 1
C or 750 cc can 1D or 1l can 1E) is placed on the base 10 with the can lid 3 down, and the canning portion 4 of the can 1 is attached to the can pressing surface 11a of the can pressing member 11. Abutting.

A stand 13 is erected on the left side of the base 10, and the base 10 is mounted on the stand 13 so as to be movable and adjustable in the vertical direction as shown in FIG.

As shown in FIG. 6, the front of the stand 13,
That is, the air cylinder 20 is mounted on the front side surface in FIG. 6, and the air cylinder 20 is a rodless type that moves and drives the slider -21 in the vertical direction. The air cylinder 20 also includes a speed controller 22 that adjusts the moving speed of the slider 21.

On the other hand, on the can 1 side of the air cylinder 20, a plate member 13a is provided at a right angle to the stand 13 so as to face the can 1, and the plate member 13a has a plate shape as shown in FIG. The guide plate 23 is mounted so as to extend vertically as shown in FIG. As shown in FIG. 7, guide grooves 23a, 23a are formed on both end faces of the guide plate 23 from the upper end to the lower end of the guide plate 23 as shown in FIG. A movable frame 24 is attached to the guide plate 23.
The movable frame 24 is provided so as to be vertically movable by being guided by the guide grooves 23 a, 23 a, and the moving frame 24 is connected to the slider 21 of the air cylinder 20 via a connecting member 25. Therefore, the moving frame 24 can be vertically moved and positioned by the air cylinder 20, that is, the air cylinder 20 is a frame moving / positioning driving means.

The movable frame 24 has a horizontal plate 24a protruding above the can 1 and a vertical plate 24b extending downward from the end of the horizontal plate 24a on the inner side of FIG.
4b is provided with a guide rail 26 extending in the vertical direction. A contact member 35 is mounted on the guide rail 26 so as to be movable in the vertical direction.
Is a slide portion 35 attached to the guide rail 26.
a and a wall body 35b provided at a right angle to the slide portion 35a
6, a target plate 35c provided at the lower end of the wall body 35b and protruding leftward in FIG. 6, a projecting plate 35d provided at the upper end of the wall body 35b projecting rightward in FIG. 6, and a projecting plate 35d. It is composed of a contact portion 35e provided on the lower surface and a rod mounting portion 35f vertically provided from the slide portion 35a.

The contact portion 35e is formed in a round bar shape,
It is provided so as to extend horizontally to the right in FIG. The ridge line at the lower end of the contact portion 35e is located vertically above the contact point between the can pressing surface 11a of the can pressing member 11 provided on the base 10 and the winding tightening portion 4 of the can 1. The rod mounting portion 35f is provided with the horizontal plate 24a penetrating vertically and has a double-acting air cylinder 30 with a piston rod 31 protruding downward.
Are installed upright. Therefore, the contact member 35
Is vertically movable by an air cylinder 30.

A bracket 41 is provided on the upper surface of the horizontal plate 24a.
The reflection type laser sensor 40 is attached through the reflection type laser sensor 40, and
Is emitted and the distance to the reflection position is detected based on the reflected wave. The reflection type laser sensor 40 has a target plate 35 of the contact member 35 through a hole (not shown) formed through the horizontal plate 24a.
It is arranged so as to emit the laser wave L toward c. That is, the reflective laser sensor 40 has the contact member 3
It is a can height detecting means for detecting the height position of No. 5.

As shown in FIG. 5, sensor bars 51 and 51 are vertically provided at both ends of the horizontal plate 24a, and sensor blocks 52 and 52 are provided at the lower ends of the sensor bars 51 and 51, respectively. The light emitting portion 61a of the light emitting side cable 61 of the fiber sensor 60 and the light receiving side cable 6
Two light receiving parts 62a are attached. The fiber sensor 60 transmits the light L2 from the light emitting portion 61a to the light receiving portion 62a.
Is a can type detection unit that detects that the height of the can 1 is lower than the light transmission height position of the light L2.

The air supply control mechanism 7 for controlling the supply of air to the air cylinders 20 and 30 is shown in FIGS. 8 and 9.
0 is connected, and the air supply control mechanism 70 includes an electromagnetic 5 port position switching valve 71 connected to the air cylinder 20 and an electromagnetic 5 port position switching valve 71 connected to the air cylinder 30.
And a port position switching valve 72. As shown in FIG. 10, the electromagnetic 5-port position switching valves 71 and 72 switch the air supply direction to the air cylinders 20 and 30,
The drive direction of the air cylinders 20 and 30 is switched. In addition, the electromagnetic 5-port position switching valve 71
When the fiber sensor 60 detects that the height of the can 1 is lower than the light passing height position of the light L2 shown in FIG. 5, the slider 21 of the air cylinder 20 shown in FIG. 6 is moved to the lower end position of the movable range. Controlled to move and position.

As shown in FIG. 10, an air supply control mechanism 70
On the air source 75 side of the electromagnetic 5-port position switching valves 71 and 72 of FIG. 9, a pressure switch 76 for switching a switch (not shown) when the supplied air pressure is not a desired pressure (when the air pressure is too high, etc.) is shown in FIG. It is provided as shown,
A filter 77 for purifying the air and a pressure reducing valve 78 for adjusting the pressure of the air are provided between the pressure switch 76 and the air source 75 in FIG. Filter 77 and pressure reducing valve 7
8 is built in the filter regulator 79 shown in FIG.

Further, the can tightening inspection device 100 is shown in FIG.
As shown in, X-ray emission for emitting X-rays X1 toward the tightening portion 4 of the can 1 at the same angular position around the axis of the can 1 that the abutting portion 35e of the abutting member 35 abuts. Means 91,
It has an X-ray camera 92 which is an image receiving means for receiving the X-ray X1 transmitted through the winding portion 4. In this embodiment, a microfocus X-ray tube is used as the X-ray emitting means 91, and the X-ray emitting means 91 is located behind the can 1, that is, in FIG.
It is arranged on the right side and is arranged so as to project the position of the winding tightening portion 4 of the can 1, that is, the contact portion with the can pressing member 11, in the tangential direction by the X-ray X1. Then, the X-ray camera 92
Is an X-ray fluorescence multiplier tube 92a (image intensifier) that converts an X-ray image by the incident X-ray X1 into a visible image, and a camera head 92b that captures an output image of the X-ray fluorescence multiplier tube 92a. And is arranged in front of the can 1, that is, on the left side of FIG.

Further, as shown in FIG. 1, the can winding inspection device 100 has a winding inspection control device 200 which is a winding inspection control means.
The X-ray emission means 91, the X-ray camera 92, the laser sensor 40, the fiber sensor 60, and the air supply control mechanism 70 shown in FIG. 8 are communicatively connected to each other via cables.

As shown in FIG. 2, the winding inspection control device 2
Reference numeral 00 denotes an image processing unit 204 connected to the keyboard 202, the X-ray camera 92, an X-ray control unit 206 connected to the X-ray emission means 91, an image analysis unit 208, and a laser sensor 40.
The can height detector 210 and the laser sensor controller 212, the check item detector 214, and the fiber sensor controller 216 to which the fiber sensor 60 is connected
And a slider operation determination unit 218, an image control unit 220,
The image data memory 222, the dimension data memory 224, the check item memory 226, the air supply control mechanism control unit 228 connected to the air supply control mechanism 70, and the main control unit 23.
The keyboard 202, the image processing unit 204, the X-ray control unit 206, the image analysis unit 208, the can height detection unit 210, the laser sensor control unit 212, the check item detection unit 214, and the fiber sensor control unit 21.
6, slider operation determination unit 218, image control unit 220,
Image data memory 222, size data memory 224, check item memory 226, air supply control mechanism controller 22
8 is connected to the main control unit 230 via a bus line 232.

Further, as shown in FIG. 3, the check item detecting section 214 comprises a pass / fail judgment section 214A, a check item reading section 214B, and a check item list memory 214C.

Further, as shown in FIG. 1, a display 300, which is a display means, is communicatively connected to the winding inspection control device 200. In detail, the display 300 is:
As shown in FIG. 2, it is connected to the image control unit 220 of the winding inspection control device 200. This image control unit 220
Controlling the provision of images to the display 300.

The can tightening inspection device 100 shown in FIG. 1 has the above-described structure. The following will describe a can winding inspection using the winding inspection device 100. However, before entering the main subject, the process of tightening the can 1 of FIG. 14 used in this embodiment will be described.

The can 1 of this embodiment is double-wound as shown in FIG. Double winding means that the curl portion 3a of the can lid 3 whose outer periphery is bent into a predetermined shape is wound so as to tie it from the outside of the flange 2a formed at the open end of the can body 2, and then the same. The can body 2 and the can lid 3 are joined by crimping the parts from the outside, and the can 1 is sealed by the interposition of a packing made of a rubber-like material (sealing compound) applied to the inside of the curl portion 3a of the can lid 3. This is a method of maintaining sex. That is, this tightening is performed by a two-step operation. In the first stage, as shown in FIG. 12, the curl portion 3a of the can lid 3 and the flange 2a of the can body 2 are fitted and rolled in, and in the second stage, the fitted and rolled can lid 3 as shown in FIG. Curl part 3a and can body 2
The flange 2a of 1 is crimped to fill the sealing compound in the void inside the winding to maintain airtightness.

The dimensions of each part of the winding tightening portion 4 are generally called as follows. Winding thickness T, winding width W, counter sink C, body hook BH, cover hook CH, upper clearance UC, lower clearance LC.

Double winding can be performed by various double winding machines. However, in any of the double winding machines, as shown in FIG. 13, the lifter 510, the seaming chuck 520, and the winding rolls 530 and 54.
0 is the basic configuration. The chuck 520 and the winding rolls 530 and 540 are collectively referred to as a seaming head. This double wrapping machine 500 operates as follows.
First, the can body 2 with the can lid 3 is placed on the lifter 510. Next, the lifter 510 rises, the lid 3 is fitted into the seaming chuck 520 located above, and the can body 2 and the can lid 3 are gripped by the lifter 510 and the seaming chuck 520. Therefore, the first winding roll 530 moves horizontally to move the seaming chuck 52.
While approaching 0, pressure is applied to the curl portion 3a of the can lid 3 and the periphery thereof is rapidly rotated, and the curl portion 3a of the can lid 3 is wound under the flange 2a of the can body 2. Then, the first winding roll 530 separates from the seaming chuck 520, and instead, the second winding roll 540 moves horizontally to approach the seaming chuck 520 and applies pressure to the curl portion 3 a of the can lid 3. Along with that, it rapidly rotates around it. The curl portion 3a of the can lid 3 and the flange 2a of the can body 2 are pressure-bonded by the second winding roll 540 to complete the winding tightening.

The winding inspection of the can 1 thus wound is performed by the winding inspection apparatus 10 according to the present invention.
0. Hereinafter, the winding tightening inspection method will be described.

In the can winding inspection device 100, as shown in FIG. 6, in a state before the inspection is started, the slider 21 of the air cylinder 20 provided on the stand 13 is located at the upper end of its movable range. Therefore, the moving frame 24 connected to the slider 21 is also located above the guide plate 23. Further, the piston rod 31 of the air cylinder 30 provided on the moving frame 24 is also located at the upper end of its movable range, and therefore the contact member 35 provided on the piston rod 31 is also pulled up. Furthermore,
The light emitting portion 61a of the light emitting side cable 61 and the light receiving portion 62a of the light receiving side cable 62 of the fiber sensor 60 shown in FIG. 5 provided at both ends of the abutting member 35 are also in the positions pulled up.

Now, as shown in FIG. 6, the can 1 is replaced with the can lid 3.
On the base 10. At this time, by bringing the winding tightening portion 4 into contact with the can pressing surface 11a of the can pressing member 11 provided on the base 10, the position of the can 1 can be accurately positioned immediately below the contact member 35. it can.

Therefore, the winding inspection control device 2 shown in FIG.
The inspection start signal S0 is input from the keyboard 202 shown in FIG. Then, the main controller 230
The signal S1 is output to the fiber sensor control unit 216 based on the inspection start signal S0. When the signal S1 is input, the fiber sensor control unit 216 receives the signal S
The fiber sensor 60 is driven based on 1. Then, as shown in FIG. 5, the light emitting portion 61a of the fiber sensor 60 emits light toward the light receiving portion 62a.

As shown in FIG. 6, in the case of a can 1A or 1B of a short can type, the light passes through above and is transmitted.
The light is received by the light receiving unit 62a. Then, the signal S2 is sent from the fiber sensor 60 to the slider operation determination unit 218 shown in FIG. The slider operation determination unit 218 outputs a signal S3 to the main control unit 230 based on the signal S2. When the signal S3 is input, the main controller 230 outputs the signal S5 to the air supply control mechanism controller 228. Then, the air supply control mechanism control unit 228 drives the air supply control mechanism 70 so as to move and position the air cylinder 20 downward. As a result, the slider 21 of the air cylinder 20 shown in FIG. 6 is moved and positioned downward.

When the slider 21 is moved downward and positioned, the moving frame 24 connected to the slider 21 is moved.
Is also moved and positioned downward along the guide plate 23.
Then, the reflective laser sensor 40 provided on the moving frame 24 is moved and positioned downward, so that the distance between the reflective laser sensor 40 and the upper end of the can 1A or 1B can be shortened. Therefore, as will be described later, the piston rod 31 of the air cylinder 30 is driven downward, the contact portion 35e of the contact member 35 comes into contact with the peripheral edge of the upper end portion of the can 1A or 1B, and the piston rod 31 stops. Type laser sensor 40, contact member 35
When measuring the distance up to, it is possible to maintain the same measurement accuracy as in the case of tall cans 1C, 1D, and 1E by shortening the distance. Therefore, even for the cans 1A and 1B of short can types, the can height inspection can be performed with high accuracy.

At this time, since the air cylinder 30 is also provided on the moving frame 24, it is moved downward, and the contact member 35 is also moved downward by moving the air cylinder 30 downward. As a result, the distance between the contact member 35 and the can 1A or 1B is shortened, so that the air cylinder 3
The stroke of 0 can be shortened. Therefore, it is possible to reduce the size of the air cylinder 30 and further reduce the size of the can tightening inspection device 100.

On the other hand, in the cans 1C, 1D or 1E of tall can types, the light L2 emitted from the light emitting section 61a of the fiber sensor 60 shown in FIG. Since it is blocked, it does not reach the light receiving portion 62a. Then, the slider operation determination unit 218 does not receive the signal S2 from the fiber sensor 60, and the signal S3 from the slider operation determination unit 218 to the main control unit 230 is also not output. The main control unit 230 outputs a signal S6 to the air supply control mechanism control unit 228 when the state continues for a certain period of time.

Then, the air supply control mechanism controller 228
Outputs a signal S8 to the air supply control mechanism 70 based on the signal S6. Then, the air cylinder 20 is not driven and the moving frame 24 remains at that position.

When the positioning of the moving frame 24 shown in FIG. 6 is completed, the air supply control mechanism 70 drives the piston rod 31 of the air cylinder 30 provided on the moving frame 24 downward. This moving speed is appropriately adjusted. Then, the contact member 35 provided at the lower end of the piston rod 31 moves downward to contact the contact portion 35e.
Contacts the periphery of the upper end of the can 1. Then, the air pressure rises in the air cylinder 30, and the drive of the air cylinder 30 is stopped based on the rise in the air pressure.

When the driving of the air cylinder 30 is stopped,
As shown in FIG. 2, the completion signal S9 is output from the air supply control mechanism 70 to the main control section 230 via the air supply control mechanism control section 228. Then, the main controller 230 outputs the drive signal S10 to the X-ray controller 206 and the drive signal S11 to the laser sensor controller 212.

The X-ray controller 206 drives the X-ray emitting means 91 based on the signal S10. Then, as shown in FIG. 1, the X-ray emitting means 91 emits X-ray X1 to the contact portion of the winding tightening portion 4 of the can 1 with the can pressing member 11. The emitted X-ray X1 passes through the tightening portion 4 and X of the tightening portion 4
The image is received by the X-ray camera 92 as a line image. X-ray camera 9
In 2, the X-ray fluorescence multiplier tube 92a converts the X-ray image into a visible image, and the camera head 92b captures the visible image. The captured visible image is output as a video signal D1 to the image processing unit 204 of the winding inspection control apparatus 200 shown in FIG. The image processing unit 204 performs various kinds of processing on the video signal D1, for example, averaging processing or integration processing for noise reduction, or edge enhancement for making the image easier to see.
The gradation conversion, the contrast adjustment, and the like are performed, and the image information D2 obtained in this way is output to the image data memory 222 for storage and is also output to the image analysis unit 208.

The image analysis unit 208, based on the input image information D2, the cross-sectional dimension of the winding-fastening unit 4 shown in FIG.
That is, the winding thickness T, the winding width W, the counter sink C, the body hook BH, the cover hook CH, the upper clearance UC, and the lower clearance LC are measured. Then, the winding thickness T, the winding width W, the counter sink C,
The body hook BH, the cover hook CH, the upper clearance UC, and the lower clearance LC are output to the dimension data memory 224 and the check item detection unit 214.
The dimension data memory 224 stores the winding thickness T, the winding width W, the counter sink C, the body hook BH, the cover hook CH, the upper clearance UC, and the lower clearance LC. Thickness T, winding width W, counter sink C, body hook BH, cover hook CH, upper clearance UC,
Hold the lower clearance LC.

On the other hand, the laser sensor controller 212 is
The laser sensor 40 is driven based on the signal S11 from the main controller 230. Then, as shown in FIG. 6, the reflection laser sensor 40 emits the laser wave L1 toward the target plate 35c of the contact member 35, and the laser light L1 reaches the contact member 35 based on the reflected wave from the target plate 35c. Measure the distance. This distance data h
Is output to the can height detector 210 of the winding inspection control device 200 shown in FIG. The can height detector 210 calculates and detects the actual can height CaH based on the distance data h.

Therefore, in the main winding inspection apparatus 100, the height measurement of the can 1 and the dimension measurement of the winding portion 4 shown in FIG.
Since they can be performed at the same time, the work can be performed easily and quickly. Further, since the contact portion 35e of the contact member 35 contacts the upper end peripheral edge of the can 1 at the same angular position as the portion imaged by the X-ray X1 of the winding portion 4, the above-described can height CaH and winding tightening. Dimensions of each part 4 (that is, winding thickness T, winding width W, counter sink C, body hook B
H, the cover hook CH, the upper clearance UC, the lower clearance LC) can be used to accurately inspect the canned state of the can 1. Therefore, it is possible to easily and accurately inspect the canned state of the can 1.

Then, as shown in FIG. 2, the actual can height C
The aH is output and stored in the dimension data memory 224, and also output to the check item detection unit 214.

In the check item detecting section 214, the actual can height CaH, the winding thickness T, the winding width W, the counter sink C, the body hook BH, the cover hook CH, the upper clearance UC, and the lower clearance LC are as follows. As shown in FIG. 3, it is input to the quality determination unit 214A. The quality determination unit 214A determines the dimension data (actual can height CaH
And, the winding thickness T, the winding width W, the counter sink C, the body hook BH, the cover hook CH, the upper clearance UC, the lower clearance LC) are compared with appropriate values of respective dimension data stored in advance, Each is judged to be good or bad, and if it is defective, the magnitude relative to the proper value is detected. Then, the quality data of each dimension data and the determination data D11 of the size are output to the check item reading unit 214B.

The check item reading section 214B receives all the dimension data, that is, the actual can height CaH and the winding thickness T, the winding width W, the counter sink C, the body hook BH, the cover hook CH, the upper clearance UC, When the determination data D11 of the lower clearance LC are prepared, the check items CK1 to be read out based on the combination of the determination data D11 and the pre-stored combination table shown in FIG.
25 is selected and the check item list memory 214 of FIG. 3 is selected.
The check items CK1 to 25 selected from c are read.

For example, when the determination data D11 has the following combination, that is, the actual can height CaH is too high,
When the winding thickness T is too large, the winding width W is too small, the counter sink C is too deep, the body hook BH is too short, and the cover hook CH is too short, the check item reading unit 214B displays Based on the combination table shown in 4, check item CK1 "Too high winding roll against chuck"
And check item CK3, “Too high setting of seaming head height”, check item CK6, “Too little lifter pressing force”, and check item CK10, “Too weak second roll tightening roll”, Check item CK11, "The pressure of the second tightening roll / cushion spring is too weak"
The check item CK17 "second winding roll / cushion spring fatigue / damage" and the check item CK23 "sealing compound (rubber) excess / poor drying" are read.

Therefore, the check item reading section 214B
Of the elements of the judgment data D11 showing the size relative to the appropriate values of the dimension data (the actual can height CaH and the winding thickness T, the winding width W, the counter sink C, the body hook BH, the cover hook CH) in which a defect is recognized Among them, when the combination configured using at least one element matches the combination in the left column of the table of FIG. 4, the corresponding check items CK1 to 25 are
Read all, even if there are multiple.

Further, the read check items CK1 to CK1
25 is output and stored in the check item memory 226 shown in FIG. The check items CK1 to CK25 stored in the check item memory 226 correspond to the keyboard 2
By inputting the check item display signal S13 from 02, it is read out to the image control unit 220 and displayed on the display 3
Displayed at 00.

Therefore, the worker can easily and accurately recognize the check-needed portion in the winding tightening process.

Further, the image data D2 stored in the image data memory 222 or the actual can height CaH and winding thickness T, winding width W, counter sink C, body hook BH stored in the image data D2 or the dimension data memory 224, Cover hook CH,
Upper clearance UC, lower clearance LC
Are read by the image controller 220 by inputting the image data display signal S11 and the dimension data display signal S12 from the keyboard 202, respectively, and the display 3
00 can be displayed.

Therefore, according to the can tightening inspection device 100 of the above-described embodiment, only by installing the can 1 on the base 10, it is possible to measure the height of the can 1 with high accuracy regardless of the can type. At the same time, it is possible to measure the dimensions of each part of the tightening portion 4 by X-rays, and further, based on the can height CaH and the size of each part, check items CK1 to
Since CK25 is detected and displayed, winding tightening inspection is easy,
It can be done quickly and accurately. That is, it is possible to simplify the work of the tightening inspection of the can 1.

The can tightening inspection device 1 according to the above embodiment.
By providing a rotary positioning means such as a roller for rotationally positioning the cans 1 at a plurality of positions on the base No. 00 of 00, and performing a tightening inspection of the cans 1 when the cans 1 are rotationally positioned, respectively. The inspection can be performed more precisely. Further, by providing this roller so that it can be moved and positioned in the horizontal direction, the canning inspection of cans 1 having different can diameters, that is, cans 1 having different can types can be performed.

Further, in the above embodiment, the frame movement positioning drive means and the contact member movement drive means are the air cylinders 20 and 30, but it goes without saying that other movement drive means such as a hydraulic cylinder may be used.

Further, the winding inspection control means does not necessarily have to be the winding inspection control device 200 of the above-described embodiment, and the size of the winding portion 4 (for example, the size of the winding portion 4 is determined based on the image information D1 of the received X-ray). , The tightening thickness T, the tightening width W, the counter sink C, the body hook BH, the cover hook CH, the upper clearance UC, the determination data D11) of the lower clearance LC, and the dimensions and the reflection type laser. Based on the position of the contact member 35 detected by the can height detecting means such as the sensor 40, it is determined whether the size and the can height CaH are good or bad, and the size and the can height CaH are determined. Check items CK1 to CK in the can winding process based on the combination of good and bad
It goes without saying that any configuration may be adopted as long as it includes a check item detection unit that detects check items such as 25.

[0057]

According to the can tightening inspection device of the first aspect, the image of the cross section of the tightening portion can be detected by the image receiving means for receiving the X-rays emitted by the X-ray emitting means. The size of each part of the tightening part can be detected from the image. At the same time, the abutting member movement driving means abuts the abutting member on the peripheral edge of the bottom of the can at the same angular position as the winding tightening portion whose dimensions are detected, and the can height detecting means It is possible to detect the position of the contact member, that is, the height of the can at the same angular position as the winding portion. Therefore, the height measurement of the can and the dimension measurement of the winding tightening part,
Since they can be performed at the same time, the work can be performed easily and quickly. Further, since the can height detecting means detects the height of the can at the same angular position as the winding portion, it is possible to accurately inspect the winding state of the can based on the height and the dimensions of each portion of the winding portion. it can. Therefore, it is possible to easily and accurately inspect the canned state of the can.

According to the can tightening inspection device of the second aspect, in addition to the above effects, the can tightening is determined from the size of each part of the winding part and the position of the contact member, that is, the height of the can. High-level work to detect check items in the process is performed by the winding inspection control means connected to the image receiving means and the can height detecting means, and the check items are displayed by the display means, which imposes a burden on the worker. It is possible to reduce the number, and it is possible to detect the check-needed portion easily and accurately. Therefore, it is possible to more easily and accurately inspect the canned state of the can.

According to the can winding inspection device of claim 3,
In addition to the effect according to claim 1 or 2, when the can is of a short can type, the light horizontally emitted from the can type detection means hung vertically on the contact member passes above the can. Be passed on. Then, by the frame movement positioning drive means,
Since the moving frame is moved and positioned downward, the distance between the reflective laser sensor and the contact member that contacts the peripheral edge of the bottom of the can can be shortened. Therefore, the measurement accuracy of the height position by the reflective laser sensor can be improved. Further, when the can is a tall can type, the distance from the abutting member that abuts the peripheral edge of the bottom of the can is sufficiently short without moving and positioning the moving frame downward. Therefore, regardless of whether the can is a short can type or a tall can type, it is possible to maintain high measurement accuracy of the height position by the reflective laser sensor. The accuracy of can be improved. As a result, the inspection of the canned state of the can can be made more accurate.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a can tightening inspection device of the present invention.

FIG. 2 is a diagram showing a winding inspection control device of the winding inspection device of FIG.

FIG. 3 is a diagram showing a configuration of a check item detection unit of the winding inspection control device of FIG.

FIG. 4 is a diagram showing a combination table built in the check item detection unit of FIG.

5 is an enlarged side view of the winding inspection device body of FIG.

6 is an enlarged front view of the winding inspection device body of FIG.

7 is an enlarged plan view of the winding inspection device body of FIG.

8 is a plan view of an air supply control mechanism of the winding inspection device in FIG.

9 is a side view of the air supply control mechanism of the winding inspection device in FIG. 1. FIG.

10 is a diagram showing a pneumatic power circuit of an air supply control mechanism of the winding inspection device in FIG.

FIG. 11 is a sectional view of a winding tightening portion of a can.

FIG. 12 is a cross-sectional view of a winding tightening portion of a can, showing a state during winding tightening.

FIG. 13 is a view showing a can winding machine.

FIG. 14 is a view showing a double-tightened can.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Can, 2 ... Can body, 3 ... Can lid, 4 ... Winding | fastening part, 20 ... Air cylinder (frame movement positioning drive means), 24 ...
Moving frame, 30 ... Air cylinder (contact member movement driving means), 35 ... Contact member, 40 ... Reflective laser sensor (can height detecting means), 60 ... Fiber sensor (can type detecting means), 91 ... X X-ray camera (image receiving means), 100 ... Can winding inspection device, 200 ...
Winding inspection control device (winding inspection control means), 208 ...
Image analysis unit, 214 ... Check item detection unit, 300 ... Display (display means), T ... Winding tightening thickness (winding tightening part size), W ... Winding tightening width (winding tightening part size), C ... Counter sink (Dimension of winding tightening part), BH ... Body hook (dimension of winding tightening part), CH ... Cover hook (dimension of winding tightening part), UC ... Upper clearance (dimension of winding tightening part), LC ... Lower clearance (winding) Dimension of tightening part),
CaH ... Actual can height (can height), CK1 to CK25 ... Check items

Claims (3)

[Claims] 1. A can winding inspection device for inspecting a winding state of a can formed by winding a can lid around an opening end of a can body, the abutting member being opposed to a peripheral edge of a bottom portion of the can. A contact member movement driving means for moving and driving the contact member in the axial direction of the can to contact the peripheral edge of the bottom of the can; and when the contact member contacts the peripheral edge of the bottom of the can, A can height detecting means for detecting the axial position of the abutting member, and X toward the winding portion of the can at the same angular position as the angular position around the axis of the can with which the abutting member abuts. An apparatus for inspecting tightening of a can, comprising: an X-ray emitting means for emitting an X-ray; and an image receiving means for receiving an X-ray transmitted through the tightening portion. 2. The image receiving means and the can height detecting means are connected to a winding tightening inspection control means, and the winding tightening inspection control means, based on the image information of the received X-ray, the winding tightening section. And an image analysis unit for detecting the size of the can, and based on the size and the position of the contact member detected by the can height detecting means, determine whether the size and the can height are good or bad. , A check item detection unit for detecting a check item in the can tightening process based on a combination of the size and the good or bad of the can height. 2. A display means for displaying items is connected to the display means.
The can winding inspection device described above. 3. The can height detecting means includes a reflection type laser sensor, and the abutting member is vertically provided with can type detecting means for transmitting light in a horizontal direction. The abutting member movement driving means is provided together with the moving frame, and the moving frame moves downward when the light of the can type detecting means passes over the can and is transmitted to the moving frame. The can tightening inspection device according to claim 1 or 2, further comprising a frame movement positioning drive means for positioning.