JPS6225711Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bottle inspection device for inspecting the mouth of a bottle for chips or cracks.

FIGS. 1 and 2 show a pressurizing head of a conventional bottle inspection device, in which a bottle opening bell 2 is attached to a housing 1 fixed to a main body (not shown) so as to be slidable in the vertical direction. The bottle opening bell 2 is provided with a sealing gasket 3 for sealing the mouth of the bottle B, and a detection air passage 4 is formed in the housing 1, the bottle opening bell 2, and the sealing gasket 3. An O-ring 5 is provided on the lower surface of the housing 1 to seal the detection air passage 4 between the detection air passage 4 and the detection air passage 4, and a sensor 6 is provided in the detection air passage 4 to generate a good bottle judgment signal when the back pressure of the detection air reaches a set pressure. When the bottle B is lifted by a means not shown, the mouth of the bottle B is first sealed by the sealing gasket 3, and when the bottle B is further lifted, the O-ring 5 seals the opening of the bottle B. Detection air passage 4
is sealed, and then detection air is supplied to the detection air passage 4 from the direction of the arrow shown in the figure, and the back pressure of this detection air reaches the sensor 6. When the back pressure of the detected air detected by this sensor 6 reaches the set pressure of the sensor 6, a signal is generated and the bottle is determined to be good. On the other hand, if the back pressure does not reach the set pressure of the sensor 6, no signal is generated and the bottle is determined to be defective. In other words, if the bottle opening is missing, the detected air cannot be sealed between the bottle opening and the sealing gasket 3, so the detected air will leak out.
This is because the back pressure does not reach the set pressure of the sensor 6.

However, according to the above-mentioned configuration, even if the bottle has a tilted top or is handled tilted, sealing failure will occur as shown in Figure 2, and the bottle can still be used. There was a problem that the bottle was judged to be defective even though it was a normal bottle.

This invention was proposed in view of the above points,
A pressurizing head body that is approximately cylindrical in shape, an air cylinder that holds the head body vertically and moves it up and down, a seal body that is concentrically mounted on the lower end of the head body, and the seal body and the head body. A ring-shaped gasket attached to the lower end surface of the seal body, means for supplying detection air into the head body, and a lower chamber fixed vertically to the flexible tube. Therefore, the pressure inside the head body is measured by a detection cylinder connected to the detection air passage inside the head body, a weight detachably attached to the piston rod of the detection cylinder, and a sensor installed above the weight. It is an object of the present invention to provide a bottle inspection device that can reduce the good bottle removal rate and improve inspection accuracy.

Since the present invention is constructed as described above, the seal body will be tilted with respect to the head body via the spherical bearing even if the mouth of the bottle is tilted or the bottle is handled tilted.

Further, the seal body and the head body are connected by a flexible part, so that even if the head body is tilted, the seal can be reliably sealed between the two.

Therefore, the above-mentioned bottles that can still be used are no longer judged as defective bottles, the removal rate of good bottles is reduced, and the inspection accuracy is improved. Furthermore, since it is equipped with a means for measuring the pressure inside the head main body having the above-mentioned configuration, the structure of the measuring device itself is simple and inexpensive, and inspection accuracy and capacity can be easily adjusted by replacing the weights. can.

Hereinafter, a device according to an embodiment of the present invention will be explained based on FIG.

In the figure, 10 is the inspection machine body, 11 is an air cylinder fixed to the inspection machine body 10, 12 is a pressure head connected to the air cylinder 11, and a head body 13 is provided with a gap S between the head body 13. A seal body 15 is flexibly held via a spherical bearing 14, and a flexible part 1 is interposed between the head body 13 and the seal body 15.
6. A sealing gasket 17 attached to the lower surface of the seal body 15, a detection air passage 18 formed in the head body 13, the seal body 15, and the sealing gasket 17; It consists of an orifice 19. 20 is a flexible tube whose one end is connected to the detection air passage 18 of the head body 13 and whose other end is connected to the detection air supply piping via a switching valve (not shown); 21 is the inspection machine body 1;
The detection cylinder 22 fixed at 0 has one end connected to the detection air passage 18 in the seal body 15,
The other end is a flexible tube connected to the detection cylinder 21, 23 is a weight attached to the piston rod 21a of the detection cylinder 21, and 24 is a sensor installed above the weight 23.

The flexible part 16 expands and contracts according to the deviation of the spherical bearing 14, and is made of soft rubber,
It consists of bellows, etc.

Further, the diameter of the orifice 19 and the weight of the weight 23 are determined by the detection accuracy of the bottle to be removed, and can be replaced.

Furthermore, the gap S between the head body 13 and the seal body 15 is set so as to eliminate an extremely tilted bottle.

B indicates the bottle to be inspected.

In the above configuration, when the bottle B is supplied to a predetermined inspection position, the air cylinder 11 is activated to lower the pressurizing head 12 to the bottle mouth, bringing the sealing gasket 17 into contact with the bottle mouth, sealing the bottle mouth. do. When the bottle mouth is sealed, the detection air passage 18 is sealed by the bottle B, a switching valve (not shown) switches, and the flexible tube 2
0, detection air is supplied into the bottle B via the detection air passage 18. This detected air is from bottle B.
If there are no chips or cracks, the seal will be sealed.
The back pressure led to the detection cylinder 21 via the flexible tube 22 reaches the set pressure of the detection cylinder 21, causes the piston rod 21a to protrude, and pushes up the weight 23. The sensor 24 detects this and issues a good bottle judgment signal. Send.

On the other hand, if bottle B has a chipped or cracked mouth, the detection air supplied into bottle B will flow out through the chipped or cracked part and will not be sealed.
The back pressure does not reach the set pressure of the detection cylinder 21,
Weight 23 cannot be pushed up. Therefore, the sensor 24 does not emit a signal and the bottle is determined to be defective.
After determining whether the bottle is good or bad in this way, the switching valve (not shown) is switched, the detected air inside the bottle is extracted through the flexible tube 20, and the pressurizing head 12 is raised by the air cylinder 11. , bottle B is released.

Here, in the case of a bottle that has a tilted mouth but can be used as a good bottle, or a good bottle that has been handled with a tilted top of the hand link, it would have been judged as a defective bottle in the conventional system, but with this new implementation. In the example, since the seal body 15 is attached to the head body 13 via the spherical bearing 14, the sealing gasket 17 can flexibly operate against the tilted bottle mouth and reliably seal the bottle mouth. .

Therefore, usable bottles as described above are no longer judged as defective bottles, the good bottle removal rate is reduced, and inspection accuracy is improved. In this case, spherical bearing 1
Since the amount of deviation of the seal body 15 caused by 4 is regulated by the gap S, extremely tilted bottles, that is, bottles tilted beyond the usable range can be removed as defective bottles.

Furthermore, by replacing the orifice 19 and the weight 23, the inspection accuracy and ability can be easily adjusted.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a conventional device, FIG. 2 is a sectional view showing its different operating states, and FIG. 3 is a sectional view showing an embodiment of the present invention. 12: Pressure head, 13: Head body, 14:
Spherical bearing, 15: Seal body, 17: Sealing gasket, 18: Detection air passage, 21: Detection cylinder, 24: Sensor.

Claims (1)

[Scope of utility model registration request] A bottle inspection device that supplies detection air into the bottle to inspect the bottle for chips, cracks, etc., includes a nearly cylindrical pressure head body and an air cylinder that holds the head body vertically and moves it up and down. and,
A seal body concentrically mounted on the lower end of the head body, a spherical bearing and a flexible part that connect the seal body and the head body, a ring-shaped gasket attached to the lower end surface of the seal body, A means for supplying detection air into the head body, a detection cylinder which is fixed in the vertical direction and whose lower chamber is connected to the detection air passage in the head body through a flexible tube, and is removably attached to the piston rod of the detection cylinder. 1. A bottle inspection device, comprising: a weight having a pressure applied thereto; and means for measuring pressure within the head main body, comprising a sensor installed above the weight.