JPH11321823A - Device for detecting inferior adhesion of eating and drinking utensil stuck to container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect an inferior adhesion in the case that two points near both ends of a bag containing an eating and drinking utensil such as a straw adhered to a container are stuck to the container. SOLUTION: This device for inferior adhered state detection comprises means 1 for transporting a container B; means 6 for depressing an eating and drinking utensil 11 adhered to the container B; and means 7 for detecting a position of the eating and drinking utensil 11 kept at its depressed state against a predetermined measuring point on the transporting means 1. Further, this device includes means for detecting a presence or absence of the container. At the time when the container B is present, a distance up to an item to be detected is measured by a sensor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for detecting a defective sticking of eating and drinking utensils such as straws attached to a container filled with liquid yogurt, juice or the like.

[0002]

2. Description of the Related Art Various kinds of beverages filled with liquid yogurt or juice in paper containers or plastic containers are placed at predetermined positions.
Products provided with eating and drinking utensils such as straws used for eating and drinking are provided. In this case, these eating and drinking utensils
It is housed in a plastic sheet bag and is stuck to a predetermined position of the container by hot melt (glue). In this case, it is mainly to stick at least two points near both ends of the bag with the drinking utensil to the container. Is being done. However, in the case of the above-mentioned poor adhesion, particularly when only one point is adhered, the eating and drinking utensils are not visually recognized as poor adhesion, and this causes peeling of the eating and drinking utensils in circulation. Therefore, there has been a demand for a means for effectively detecting the adhesion failure.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned disadvantages of the prior art, and an object of the present invention is to solve the problem of sticking of eating and drinking utensils such as straws stuck to containers. An object of the present invention is to provide a device for effectively detecting, particularly, to provide a device for effectively detecting a sticking defect of a eating and drinking tool when two points near both ends of a bag with a drinking tool are stuck to a container. .

[0004]

In order to solve the above-mentioned problems, an apparatus for detecting a defective sticking of eating and drinking utensils attached to a container according to claim 1 of the present invention comprises means 1 for transporting a container B; Means 6 for pressing food and drink utensil 11 attached to container B
And means 7 for detecting the position of the eating and drinking utensil 11 in a pressed state with respect to a predetermined measurement point on the transport means 1.

[0005] Further, the apparatus for detecting a defective sticking of a food and drink tool stuck to a container according to a second aspect of the present invention is characterized in that in addition to the above means, there is provided means for detecting the presence or absence of the container.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a device for detecting a defective sticking of eating and drinking utensils attached to a container according to an embodiment, and is a machine frame (not shown).
A conveyor belt 1 having a constant width supported by the conveyor belt 1 is rotatably arranged, and conveyance guides 2 and 2 are arranged on both sides of the conveyor belt 1 so that the container B to be conveyed does not drop. Detection devices are arranged on both sides of the conveyor belt 1.

The test object of the embodiment is a rectangular container B containing a beverage, and the container B has two straws 11 in one side of a bag 12 made of a synthetic resin sheet. Is stuck. The reason for sticking at two points is to ensure that the straw 11 is stuck to the container B in a state where the posture of the straw 11 does not change. In such a stuck state, even if only one point is stuck,
Unless external force is applied, the sticking state is maintained in a fixed posture, but when transporting or removing the straw, it is easily separated when external force is applied. Since the "wearing state" is not preferable, this "state where only one point is stuck"
Will be detected.

As shown in FIGS. 1 to 4, the sticking defect detecting device is disposed on both sides of the conveyor belt 1, and on both sides of the conveyor belt 1, timing belts 3 are arranged substantially symmetrically. You. The two timing belts 3 and 3 are formed as endless members, respectively, are wound around a driving roller 4 and two rollers 4a and 4a, and rotate at substantially the same speed in the same direction as the conveyance belt 1 on the conveyance belt 1 side. It is configured. The distance between the timing belts 3 and 3 on the side of the transport belt 1 is slightly smaller than the width of the container B to be transported, and is configured to support both sides of the container B.
On the two timing belts 3, 3, detection tables 5, 5 each having a rectangular shape in a plan view are provided, and the conveyance belt 1 side of the detection tables 5, 5 is formed by being bent downward,
The pressing plate 6 of the straw 11 and the sensor 7 are provided in each of the bent portions 5a and 5b.

The pressing plate 6 is made of a thin plate that elastically protrudes above the conveyor belt 1 and presses the bag 12 containing the straw 11 attached to the conveyed container B in the lateral direction of the container B. . The sensor 7 detects the position of the straw 11 and, when the position of the straw 11 is out of the set range, activates the air spray nozzle 8 via the control box 10 and removes the container B from the discharge box 9. Will be discharged inside.

The principle of detection using the above device will be described with reference to FIG. In the case of FIG.
In the case of a normal product in which two points of the bag 12 containing the paste are securely glued, even if the pressing plate 6 is elastically brought into contact with the bag 12, the mounting state of the bag 12 does not change, and the measured value is the set value. Nothing more. In the case of FIG. 4 (B), the rear point is not glued out of the two gluing points of the bag 12 containing the straw 11, and the pressing plate 6 is brought into elastic contact with the bag 12. Then, the rear point of the bag 12 is moved by the pressure of the pressing plate 6, the measured value becomes equal to or less than the set value, and is detected as a defective sticking product.

In the case of FIG. 4C, the front point is not glued out of the two gluing points of the bag 12 containing the straw 11, and the pressing plate 6 is brought into elastic contact with the bag 12. In this case, the front point of the bag 12 is moved by the pressure of the pressing plate 6, the measured value becomes equal to or less than the set value, and is detected as a defective sticking product.
The present embodiment utilizes this operation, and the position of the pressing plate 6 is measured by the following sensors.

As the sensor used in the present invention, various conventional sensors can be used as long as the position of the straw with respect to a predetermined measurement point can be determined. For example, an optical fiber sensor, a laser displacement sensor, or the like can be used. In particular, an optical fiber sensor is simple and suitable.

An optical fiber sensor irradiates light from a sensor head and measures the amount (intensity) of light reflected from an object. As a usage method, always emit light from the sensor head, set the amount of reflected light at the sticking position of a good straw as a reference, and when the amount of reflected light is larger than that (when the straw approaches the sensor, Is judged to be defective. Note that when there is no container, the amount of reflected light is naturally smaller than the reference, so that it is not always necessary to adjust the timing. However, in this case, since the North trolley product is determined to be non-defective, it is desirable that the North trolley product be inspected separately. FIG. 4 shows a flow of the inspection in the embodiment. As shown in the figure, when an abnormality is detected and it is determined that the product is defective, an alarm or the like is sounded and air is emitted from the air spray nozzle 8 to discharge the defective product to the discharge box 9.

The laser displacement sensor irradiates light from a sensor head, measures the displacement (position) of reflected light from an object, converts the position into a distance, and measures the distance to the object. . As a usage method, the presence or absence of a container is detected by a timing sensor (phototube, etc., not shown) (container B
Means for detecting the presence or absence of a container B), and when the container B is present, the distance to the object is measured by a sensor. Based on the distance from the sensor head to the regular straw attachment position, the case where the measured distance is within a certain range is regarded as good.

FIG. 5 shows a flow of the inspection in this case. When a defective product is detected, an alarm or the like is sounded, air is emitted from the air spray nozzle 8, and the defective product is discharged to the discharge box 9, as in the case of the optical fiber sensor. In the case of this method, since the measurement distance of the Northtrow product does not fall within a certain range, it can be detected as a defective product. However, a timing sensor is separately required.

In the above embodiment, the case where the eating and drinking utensil is a straw is illustrated, but the invention can be effectively implemented even with other eating and drinking utensils such as a fork and a spoon. Further, the container is not limited to a rectangular parallelepiped but may be a cup-shaped container.
Further, although the above embodiment shows the case of two-point gluing, the present invention can also be carried out for confirmation in the case of one-point gluing or in the case of two or more glues. Furthermore, the sensor used in the above embodiment is based on optical means, but may be detected from other mechanical means, for example, from the rotation angle of the pressing plate 6.
In the claims, the reference numerals are given for clarifying the correspondence with the embodiments, but the present invention is not limited to them.

[0017]

According to the present invention, it is possible to effectively detect defective sticking of eating and drinking utensils such as straws stuck to the container by the above-mentioned structure.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a main part of an embodiment of the present invention.

FIG. 2 is a schematic plan view of the embodiment.

FIG. 3 is a front view of the embodiment.

FIGS. 4A, 4B, and 4C are explanatory diagrams of the operation of the embodiment.

FIG. 5 is an operation explanatory view of the first embodiment.

FIG. 6 is an explanatory diagram for operation of the second embodiment.

[Explanation of symbols]

 B ... Container 1 ... Conveyer belt (conveying means) 2 ... Conveyer guide 3 ... Timing belt 4 ... Drive roller 4a ... Roller 5 ... Detection table 5a, 5b ... Bending part 6 ... Pressing plate (pressing means) 7 ... Sensor (detecting means) 8 ... Air spray nozzle 9 ... Discharge box 10 ... Control box 11 ... Straw (drinking tool) 12.・ Bags (for eating and drinking utensils)

Claims (2)

[Claims] 1. A sticking failure detecting device for eating and drinking utensils stuck on a container, which has the following constitutional requirements 1-3. 1. Means 1 for transporting container B. 2. Means 6 for pressing the eating and drinking utensil 11 attached to the container B. 3. Means 7 for detecting the position of the eating and drinking utensil 11 in a pressed state with respect to a predetermined measurement point. 2. The apparatus according to claim 1, further comprising means for detecting the presence or absence of the container B.