JPS5934131A - Detecting method and device of break in mouth of bottle - Google Patents

Abstract

PURPOSE:To detect the presence or absence of the broken mouth of a bottle by pressing a contact provided with an air hole to the mouth edge of the bottle to detect whether air is flowed between the contact and the mouth edge of the bottle. CONSTITUTION:An outside cylinder 6, an inside cylinder 18, and a rod 27 are allowed to fall, and a contact 43 provided with an air hole 42 connected to an air hole 35 in the center is fitted into a mouth edge (c) of a bottle (a), and a synthetic resin layer 45 of its conical face is brought closely into contact with the mouth edge (c) and is pressed to the mouth edge (c) by charging of a compression coil spring 31. In this state, pressurized air is packed in the bottle (a) from a pressurized air source 39. If no breaks exist on the mouth edge (c) of the bottle (a), the pressure in the bottle (a) rises to the same pressure as the pressurized air source 39 because the mouth edge (c) is closed by the contact 43. This pressure rise is detected by a pressure sensor 40.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a method for filling bottles with contents such as alcoholic beverages.
The present invention also relates to a method for detecting whether the mouth of a bottle is missing or not, and a detection device used to carry out the method.

Most of the bottles used to fill alcoholic beverages are made of glass, and when the bottles collide with each other during transportation or handling, the mouths of the bottles can break off, especially when the bottles are filled with alcoholic beverages. Even if you fill the container with something and seal it, the contents may leak out from the gap created by the chipped part.
Such ribs have no commercial value and must be discovered and removed from the line before the filling process.

However, there is currently no device that can accurately detect chipped edges of bottles, and even in fully automatic filling lines, workers visually inspect each bottle for the presence or absence of chips. Therefore, there was a desire for a device to automatically detect when a bottle is missing.

The present invention was completed in response to these demands, and provides a method for detecting a chipped mouth of a bottle with high accuracy and high efficiency, and an implementation of the method. The purpose is to provide a device for use in

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the apparatus of the present invention will be described below with reference to the accompanying drawings, and an embodiment of the method of the present invention will be clarified by explaining its operation.

A vertical sliding guide tube located directly above the conveyor b is attached to a bracket 8 fixed by bolts 2 to the lower surface of the frame 1 provided above the conveyor b on which bottles a are carried and conveyed in one direction. 4 is formed, and an outer cylinder 6 having a collar 5 fixed to the lower end is fitted into this sliding guide cylinder 4 so as to be able to freely slide up and down.This outer cylinder 6 has a spherical recess 8 in a spherical head 7. It is connected to the tip of a lever 11 by a freely rotatably fitted ball jaw A9 and a shaft 10, and this lever 11 is supported by a shaft 13 at the upper end of a bracket 12 erected on the frame 1. Pivotally supported follower roller 1
4 is rotated by a cam 16 that rotates about a shaft 15 above it, and swings up and down about a shaft 13. Additionally, inside the outer cylinder 6, there are several notches 1 on the outer periphery.
An inner cylinder 18 formed at intervals in the length direction is fitted into the inner cylinder 18 so as to be able to freely slide up and down. Bow/l/21 pressed by the bullet expansion force of 20 is notched 17
A tightening ring 23 with slots 22 is fitted onto one of the inner cylinders 18 and fixed to the lower surface of the collar 5 with bolts 24. Then, by rotating the screw 25 screwed together so as to intersect with the slot 22 using the handle 26, the tightening ring 23 is removed.
The inner cylinder 18 is fixed relative to the outer cylinder 6 so that it cannot move relative to the outer cylinder 6.

An elongated rod 27 is inserted into the hollow of the inner cylinder 18 so as to freely slide vertically, and a spring receiver 29 is formed on the upper surface of the enlarged diameter part 28 formed in the lower part, and a spring receiver 30 is attached to the lower end of the inner cylinder 18. The downward moving force is applied by the elastic expansion force of the compression coil spring 81 installed between the inner cylinder 18 and the ring-shaped stopper 32 fixed to the upper end of the inner cylinder 18, which stops at the position where it comes into contact with the upper end of the inner cylinder 18. A male thread 34 is formed on the outer periphery of the small diameter part 33 on the lower side of the enlarged diameter part 28, and a ventilation hole 35 is formed in the center of the small diameter part 33.
A plug 37 is screwed onto a female thread 36 formed on the outer peripheral surface of the housing so as to communicate with the ventilation hole 35, and a flammable hose 38 fitted onto the plug 37 is connected to a pressurized air source 39 such as an accumulator. A pressure sensor 4o such as a pressure switch is connected to the air supply pipe A.
are connected. Further, a contact 43 in the shape of a truncated cone, which has a vent hole 42 communicating with the vent hole 35 in the center thereof, is screwed onto the male thread 84 at the lower end of the rod 27, and is locked by a nut 44. A synthetic resin layer 45 is formed on the conical surface of the contact 43.

Then, 51 was carried on conveyor b.
&a stops directly below the contactor 43, the follower roller 1 is attached to the large diameter arc portion 16a of the cam 16, as shown by the chain line.
The lever 11, which was in the position shown by the chain line when the levers 4 were in contact with each other,
By bringing the follower roller 14 into contact with the small diameter arc portion 16b as shown by the solid line in the figure by 160 rotations of the cam,
The outer cylinder 6, the inner cylinder 18, and the rod 27 are swung clockwise around the shaft 13, and the outer cylinder 6, inner cylinder 18, and rod 27 are lowered, and the contact 43, which was in the position shown by the chain line in the figure, is moved to the 1-1 position of JI7t a.
1 edge C and the synthetic resin layer 45 of the conical surface is 11
After that, the lever 11 swings slightly excessively in the counterclockwise direction in the figure, and the inner lever 18 moves downward together with the outer cylinder 6, elastically compressing the compression coil spring 31 and expanding it. The force applies a downward moving force to the rod 27, and this urging forces the synthetic resin layer 45 on the conical surface of the contact 43 to the edge C.

In this state, the plug 3 is connected to the pressurized air source 39.
7 and vent holes 35, 42 into bottle a with pressurized air. At this time, if there is no chipping in the 1'' edge C of the ja, the edge C is sealed by the contact 43, so
The pressure inside bottle a immediately rises to the same pressure as the stone air source 39, and this pressure rise is detected by the pressure sensor 40. However, if there is a defect in the rim C of bottle a, As air leaks out from the defect and pressurized air is continuously supplied from the pressurized air source 89 into the bottle a, the pressure in the air supply pipe A decreases, and this pressure decrease causes a pressure increase. 40, and it is confirmed that bottle a has a chipped mouth.

In this way, when the detection of the presence or absence of a chipped mouth on the bottle a is completed, the contact 43 rises to the position shown by the chain line in the figure by the clockwise swing of the lever 11 due to the rotation of the cam 16, and the bottle a
This bottle a is carried out by the running of the conveyor b, and the next new bottle a is transferred directly under the contactor 43 and stops, and by repeating the same operation as described above, the bottle a is removed.
This is to detect cracks in the edges.

In addition, the type of ea has changed and the bottle a is placed from the top of the conveyor b.
If the height to the position of the mouth rim C changes, loosen the tightening ring 23 by rotating the hand (v26), move the inner cylinder 18 up and down with respect to the outer cylinder 6, and adjust the position as desired. By fitting the port 1/21 into the new notch 17 and temporarily fixing it in an appropriate position, rotating the handle 26 to reduce the diameter of the tightening ring 23 and fixing the inner cylinder 18, the contact 43 can be adjusted to just above the rim C of bottle a to be detected.

In the above embodiment, the vent holes 35 and 42 are connected to a negative pressure source such as a vacuum pump to maintain a negative pressure inside the bottle a, and Qa
If there is a chipped opening in the bottle, the J sensor 40 detects the presence or absence of the chipped opening. It may also be detected.

As specifically explained in the above embodiments, the method of detecting a gap in a bottle according to the present invention is to press a contact with a ventilation hole through it against the rim of the bottle, and to inject pressurized air into the bottle through the ventilation hole. The gist of the system is to supply or have a mechanism to suck out the air inside the bottle, and to detect whether or not there is a defect in the rim of the bottle based on the presence or absence of air circulation between the contact and the rim of the bottle. Therefore, we decided to detect whether or not the bottle has a chipped lip based on whether or not air leaks from between the contact and the rim of the bottle, so the detection work can be performed with high precision and high efficiency. However, the device of the present invention has a contact shaped to fit closely against the rim of the bottle, is placed in opposition to the rim of the bottle, and pressurizes the vent hole formed in the contact. The main feature is that the air source communicates with an air source or a negative pressure air source, and a pressure sensor is interposed in the communication path, and the above-described method of the present invention can be carried out reliably.

[Brief explanation of drawings]

The accompanying drawing is a partially cutaway front view including a block diagram showing one embodiment of the device of the present invention. 18: Inner cylinder 27: Rod 31: Compression coil spring 4
0: Pressure sensor 42: Ventilation hole 43: Contact A: Air supply pipe a: Bottle C: (5a) Mouth rim Applicant CKD Co., Ltd. San) IJ-Co., Ltd.

Claims (1)

[Scope of Claims] 1. Press a contact with a ventilation hole through it against the rim of the bottle, supply pressurized air into the bottle through the ventilation hole, or suck out the air inside the bottle, and Detection method 2 for detecting a defect in the rim of a bottle, characterized in that the presence or absence of a defect in the rim of the bottle is detected based on the presence or absence of air circulation between the contact and the rim of the bottle. a shaped contact is placed in opposition to the rim of the bottle so as to approach and separate from it, and a vent hole formed in the contact is communicated with a pressurized air source or a negative pressure air source,
A device 3 for detecting a gap in a bottle, characterized in that a pressure sensor is interposed in the communication path.An elastic body for biasing the contact toward the bottle is attached to a holding member that holds the contact. A device for detecting a crack in a bottle according to claim 2, characterized in that: