KR102466128B1 - Method for labeling - Google Patents

Abstract

The present invention relates to a labeling method.
In addition, in the labeling method according to the present invention, the necessary items are additionally printed on the label paper and inspected, the label is automatically attached to the supplied product container, and an automated system that selects and extracts the defective product according to the label is used. Defects can be reduced, and labels can be attached accurately and firmly even if the shape and location of the product are different, and there is an effect of improving the productivity according to labeling.

Description

How to apply a label {METHOD FOR LABELING}

The present invention relates to a labeling method.

In addition, the present invention relates to a method for attaching a release paper label container using an automated device, and more particularly, to an automated method for attaching a release paper label that can accurately and stably attach a label to a container through an automated device and select defective products. will be.

Labels are attached to general containers in a form that matches the characteristics of each product to mark the date of manufacture and protect the product. Conventionally, manual labeling has been the mainstream, which requires a lot of time loss and attaching personnel, and productivity may be reduced due to problems such as erroneous attachment and label damage due to manual attachment.

Moreover, labels have various characteristics for each label according to various shapes, sizes, and different attachment targets.

More technical activities are required to increase it.

As a conventional label attaching method, a method of attaching a label using a label separating device and an attaching device to a predetermined position of an attachment object transferred by a conveyor and logistics movement between workers and the like is representative. In this method, when the release paper is continuously supplied through a reel and fed by a driving roller, the label is placed on standby at the adsorption standby position, and the vacuum adsorption plate disposed on the top of the adsorption standby position is lowered to vacuum the label. After adsorption, it is transferred and attached to the attachment target location through rotational and linear motion. In this way, after peeling the label according to the stand-by position of the label, the label may be attached after performing alignment with respect to the X-axis and the Y-axis at the stand-by position for attaching the label.

As another method, there is a method in which the label is adsorbed and peeled off from the release paper, and the adsorbed and peeled label is transferred to an attachment position and attached to a predetermined position.

As described above, although various label peeling and attachment technologies have been developed, the current label peeling and attachment method is difficult to actively respond to batteries for tablets having various shapes and characteristics that change rapidly. For example, there is a limitation of high-speed peeling for labels. That is, when the release paper is moved by the driving roller and the release paper is peeled off at an excessive speed, the stop position of the label may be misaligned, and the occurrence rate of defects such as bending of the label may increase. This is closely related to the limit of productivity. And, in the case of a reel-type label, when the label is peeled off and then waiting at the attachment position, a curl phenomenon in which the label is curled may occur due to the characteristics of the reel. When such a phenomenon occurs, it is difficult to secure an accurate position when aligning the label, and accordingly, there is a disadvantage in that it is not possible to secure the accuracy for the attachment position.

Republic of Korea Patent Registration No. 10-1807296 (announced December 08, 2017) Republic of Korea Patent Registration No. 10-1833052 (published on February 27, 2018)

The present invention has been devised in order to solve the problems of the prior art as described above, by additionally printing necessary items on label paper, inspecting them, automatically attaching labels to supplied product containers, and automatically selecting and extracting defective products By using the method, it is intended to provide a method for attaching a release paper label container using an automated device that can reduce the defect of the label and attach the label accurately and firmly even if the shape and position of the product are different.

As a technical means for achieving the above technical problem, printing an additional item for each sheet label of the label paper drawn out from the label roller of the label take-out unit, and acquiring, reading and storing the additional item printing state of the label as an image (a ), the step (b) of supplying the container while maintaining a predetermined distance apart state along the conveyor, and the label take-out part is located diagonally close to the supplied container so that the label is separated from the label paper at the same time. Step (c) of being attached to the container, the step (d) of inspecting the state of the label attached to the container through a label inspection unit installed on the side of the conveyor unit, and the container determined to be defective through the label inspection unit is extracted to one side of the conveyor, and the normal product is to include a step (e) of moving.

According to an embodiment of the present invention, in step (a), the label printed using a label printer to perform an interval and blank inspection, a resolution inspection, and an alignment inspection by color of the label attached along the label paper. A first step of photographing; a second step of performing an inspection for each inspection item based on the photographed image information; and a third step of transmitting the reading result for the inspection item to the control unit.

According to an embodiment of the present invention, in the label of the first step, at least any one of an image for checking resolution, an outline line for checking the blank space between labels, and a plurality of lines for each color for checking the alignment state by color An image or line for one may be included.

According to an embodiment of the present invention, in the step (c), a release paper separation plate is located close to the label take-out part in a diagonal direction toward the belt conveyor to separate the label paper and the release paper from the end side, and to the container. It can help to stick only the label.

According to an embodiment of the present invention, in the step (d), at least two vision cameras facing the container to which the label is attached, and a reference image for the inspection object are inputted in advance, and the The control unit may include a control unit that analyzes a reference image for a reference image and a photographed image obtained from the at least two vision cameras to determine an error in the examination subject itself and an error due to an object other than the examination.

According to an embodiment of the present invention, the control unit checks whether the positions of the photographed images acquired from the at least two vision cameras and the reference image for the pre-inputted inspection object match, so that an error in the inspection object itself or other than the inspection It is possible to determine whether there is an error due to the target.

In the method for attaching a release paper label container using an automated device according to the present invention, an automated system for additionally printing necessary items on label paper and inspecting it, automatically attaching a label to the supplied product container, and sorting and extracting defective products according to this By using it, it is possible to reduce the defect of the label, to attach the label accurately and firmly even if the shape and position of the product are different, and there is an effect of improving the productivity according to the labeling.

1 is a plan view of an automated labeling device according to an embodiment of the present invention;
2 is a front view of an automated labeling device according to an embodiment of the present invention;
3 is a side view of an automated label attachment device according to an embodiment of the present invention;
4 is an enlarged plan view of a label take-out unit in an automated label attachment device according to an embodiment of the present invention;
5 is a photograph of FIG. 4,
6 is an enlarged photograph of the release paper separation plate in the label take-out unit according to an embodiment of the present invention;
7 is a reference photograph of a container label attachment part and a label inspection part according to an embodiment of the present invention;
8 is a reference photo of a defect extraction unit according to an embodiment of the present invention;
9 is a flowchart of a method for attaching a release paper label container using an automated device according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the present invention may be embodied in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the present specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

Here, FIG. 1 is a plan view of an automated labeling apparatus according to an embodiment of the present invention, FIG. 2 is a front view of an automated labeling applying apparatus according to an embodiment of the present invention, and FIG. 3 is a labeling automatic labeling according to an embodiment of the present invention It is a side view of the device, FIG. 4 is an enlarged plan view of the label take-out unit in the automatic label attachment apparatus according to an embodiment of the present invention, FIG. 5 is a photograph of FIG. 4, and FIG. It is an enlarged photograph of the release paper separation plate, FIG. 7 is a reference photograph of the container label attachment part and the label inspection part according to an embodiment of the present invention, FIG. 8 is a reference photograph of the defective extraction part according to an embodiment of the present invention, and FIG. It is a flowchart of a method for attaching a release paper label container using an automated device according to an embodiment of the present invention.

As shown in FIGS. 1 to 3 , the label attachment automation apparatus includes a highly movable work table 100 , a conveyor unit 110 installed on the work table 100 in the longitudinal direction, and a conveyor unit 110 . ) from one side of the label pull-out part 120 from which the label paper 20 is drawn out, the container label attachment part 130 for attaching the drawn label paper 20 to the container 10, and the label attached to the container 10 It may include a label inspection unit 140 for inspecting the state, and a defect extraction unit 150 for extracting the container 10 determined to be defective to one side.

First, the work table 100 is again in the form of a rectangular box made of a metal material, as in FIG. 2 or FIG. 3, and various electrical devices and wiring and parts necessary for the label automation device can be installed in the provided internal space, At least four casters 102 are installed on the bottom surface to be movable.

In addition to the caster 102, a separate fixing body (reference number not assigned) may be installed to fix the position after moving.

The conveyor unit 110 installed in the longitudinal direction on the upper surface of the work table 100 to transport the container 10 (shown in FIG. 3 ) may be preferably a belt type rather than a roller type.

And in the conveyor unit 110, since the container 10 has to be transported in an upright state, a pair of guide bars 112 for guiding it are installed in a vertical pair to face and serve as a fence, and the container label It may be installed along the conveyor unit 110 except for the portion where the attachment unit 130 , the label inspection unit 140 , and the defect extraction unit 150 are installed.

Here, the length of the pair of guide bars 112 may be adjusted in the width direction of the conveyor unit 110 according to the size of the container 10 .

And in the guide bar 112 extending in the longitudinal direction, the interval is maintained so that the interval between the containers 10 that are continuously supplied by a repeated operation of temporarily blocking and opening the container 10 transferred from the entry direction side can be maintained constant. For cylinder 114 may be installed.

The cylinder 114 for maintaining the gap is opened and closed by the operation of the cylinder rod according to a preset time, and may be a pneumatic or air cylinder.

The label take-out unit 120 is installed on one side of the conveyor unit 110 and is a device for supplying the label paper 20, the label roller 121 on which the label paper is wound, and the label paper drawn out from the label roller 121 ( A plurality of guide rollers 122 for guiding the 20) to move along the path, and a label printer 123 installed between the guide rollers 122 to print the date of manufacture or barcode on the label paper 20; An image acquisition camera 124 for acquiring an image of the printing state of the label paper 20 printed through the label printer 123, a scanner 125 for reading information acquired from the image acquisition camera 124, and image acquisition It may include a control unit 200 that determines the print state of the label from the image obtained from the camera 124, stores the data information read by the scanner 125 for each print state in the server, and determines.

Furthermore, a release paper separation plate 126 may be further installed to separate the label paper 20 and the release paper so that only the label is attached to the container 10 .

Accordingly, the label take-out unit 120 will be described in more detail with reference to FIGS. 1 to 5 .

First, as for the label roller 121, a strip-shaped label paper 20 is wound, driven and drawn out in one direction, and a plurality of guide rollers 122 are installed along the drawing direction to move the label paper 20 along the path. will guide you as much as possible.

The guide roller 122 maintains the tension state of the label paper 20, and may be a point at which the traveling direction of the label paper 20 is changed, preferably while guiding the path of the label paper 20, the conveyor unit 110 ) while maintaining a certain angle obliquely toward the container label attachment portion 130 is located close to.

And the label printer 123 installed between the guide rollers 122 may be configured to include a printing sensor (not shown) and a printer (not shown). Here, the printing detection sensor is a sensor that detects that the label paper 20 enters at a predetermined position between the guide rollers 122 in order to print 2D data on the label paper 20 . When the label paper 20 is detected by the printing sensor, the printer prints the manufacturing date or barcode on each sheet of the label paper 20 . In this case, the printer may be configured using a thermal transfer printer, a laser printer, an inkjet printer, or the like. And an image acquisition camera 124 for acquiring an image of the printing state of the label paper 20 printed through the label printer 123 may be installed at the rear end of the label printer 123, and the image acquisition camera 124 is the label paper The label is taken as an image and transmitted to the scanner 125 .

The scanner 125 reads the acquired image information, scans the manufacturing date or barcode printed on the label paper 20 , and transmits it to the controller 200 . At this time, the control unit 200 transmits and stores the information of the label scanned by the scanner 125 . Here, the control unit 200 controls the operation according to the input size of the container and the size of the lid or the supply speed of the container.

In addition, although not shown in the control unit 200, the input unit to which the container size value, the container and the label paper supply speed value are input, the operation unit for calculating the movement or interval adjustment distance according to the value input by the input unit, and the calculation unit It may include an output unit for controlling the rotation speed of determining whether to operate the motors according to the calculated result.

Furthermore, the control unit 200 is responsible for sequence control (eg, controlling heat-up, operation mode, cool-down, etc.), feedback control, and EBOP control, and can change operation variables through real-time monitoring during operation, and state control. and predictive diagnosis.

In addition, the control unit 200 may be connected to the upper control system through an external communication network (eg, Ethernet). The upper control system is connected to the controllers of a plurality of fuel cell systems, and is responsible for integrated control of parallel operation by unit module (6/24/120kW) and load sharing in case of unit module failure.

The stability and reliability of the entire system may be improved based on the monitoring of the state of the upper control system through the control unit 200 . It is also possible to give priority to desired items among the lifespan of the stack module and power generation output. By replacing the unit modules, the continuity of operation of the system is also ensured. For example, various methods such as individual independent operation, integrated parallel operation, and load variable operation may be supported.

And the release paper separation plate 126 shown in FIG. 6 is installed at the last stage of the path in the plurality of guide rollers 122 constituting the label take-out unit 120, and the belt conveyor 132 of the container label attaching unit 130 ) and can be installed vertically with a certain oblique angle.

Furthermore, the end of the release paper separation plate 126 is formed to have a rounded circular cross-sectional shape, so that the label paper 20 is rounded in a state in which tension is maintained by the guide roller 122. The label can be separated by going around.

The label separated from the label paper 20 may be attached to the container 10 which rotates naturally.

And the container label attaching part 130 is a part for attaching a label separated from the label paper 20 to the container 10, and is vertically installed so as to be able to go up and down on one side of the conveyor part 110, and the conveyor part ( The belt conveyor 132, on which the belt rotates in the same direction as the traveling direction 110, is installed in the direction orthogonal to the traveling direction of the conveyor unit 110, and can move forward and backward, and the container 10 moves along the conveyor unit 110. It may include a position adjustment plate portion 134 for guiding a path so that it is moved in close contact with the belt.

7, the belt conveyor 132 is vertically installed on one side of the conveyor unit 110, and can be moved up and down depending on the size of the container 10 to which the entire jig is supplied by a cylinder or a screw shaft. can

The belt conveyor 132 is rotated in the same direction as the traveling direction of the conveyor unit 110 as the belt is wound vertically, and the rotation speed may be determined according to a preset value of the control unit 200, and the rotating belt is Made of an elastic material such as rubber, silicone, or sponge, it may be configured not to apply excessive force to the container 10 . In addition, a plurality of embossing protrusions may be formed on the outer surface of the belt to prevent sliding with the container 10 .

And the positioning plate part 134 serves to align the cylindrical container 10 entering along the guide bar 112 of the conveyor part 110 in a line, and the container 10 is in close contact with the belt conveyor 132 side. We will guide you along the way.

Therefore, the positioning plate unit 134 may be installed facing the belt conveyor 132 at a predetermined interval, and the plate facing the belt conveyor 132 may be moved forward in a direction perpendicular to the traveling direction of the conveyor unit 110 and The distance is adjusted according to the size of the container 10 by moving backward. In this case, the distance adjustment of the position adjustment plate part 134 may be configured to be adjusted by the operator by turning the handle.

The container 10 moving along the conveyor part 110 is attached to the side of the container 10 while moving between the belt conveyor 132 and the positioning plate part 134 disposed on both sides of the conveyor part 110 . As the label is pressed by the belt, the label is closely attached to the container 10 .

The label inspection unit 140 installed on the conveyor unit 110 side to the rear end of the container label attaching unit 130 to inspect the state of the label attached to the container 10 that has passed through the container label attaching unit 130 is shown again in Fig. It will be described with reference to 7.

The label inspection unit 140 is equipped with a label reading camera 142 that reads the degree of attachment of the label attached to the container 10 or whether it is correctly attached, and a scanner (not shown), which reads the acquired information and provides a control unit 200 ) to transmit the information.

And the container 10 determined to be a defective product through the label inspection unit 140 is taken out to the defective extraction unit 150 .

When the defective extraction unit 150 is described with reference to FIG. 8 , it is installed at the rear end of the label inspection unit 140 in the conveyor unit 110 to face the recovery box 152 where defective products are recovered, and the recovery box 152 . It is installed in the direction orthogonal to the progress of the conveyor unit 110 and can operate forward and backward so that the container 10 is pushed into the recovery box 152 when a defective product is determined through the label inspection unit 140. 154 , and a cylinder 156 for actuating the pusher 154 .

The recovery box 152 may be installed on either side of the conveyor unit 110 , three sides are blocked, and the defective container 10 may be positioned such that the open side faces the conveyor unit 110 .

And the pusher 154 is installed in a direction facing the recovery box 152 in a "L" shape, and the pusher 154 may be operated forward or backward by pneumatic or air cylinder 156 .

A method of attaching a release paper label container using an automated device according to the present invention having the above configuration will be described with reference to FIGS. 5 to 8 again.

As shown in Figure 9, printing an additional item for each sheet of label paper drawn out from the label roller of the label take-out unit, obtaining, reading and storing the printing state of the additional item of the label as an image (a); Step (b) of supplying while maintaining a predetermined distance apart along the portion, and the label take-out portion is positioned close in a diagonal direction toward the supplied container, and the label is separated from the label paper and attached to the container at the same time ( c), and inspecting the state of the label attached to the container through a label inspection unit installed on the side of the conveyor unit (d), and the container determined to be defective through the label inspection unit is transferred to one side of the conveyor unit and extracting and moving the normal product (e).

Therefore, when explaining the operation including each step, the electrical wiring is located on the work table 100, and when power is applied, the operation of the conveyor unit 110 starts, and the container 10 supplied along the moving direction proceeds. will start

The continuously supplied container 10 is transported in an upright state along a pair of guide bars 112 facing each other, and the transport interval can be set by the cylinder 114 for maintaining the interval installed on the guide bar 112 . There is step (b)

That is, when the container 10 that follows from the rear is temporarily stopped by the opening and closing operation of the cylinder 114 for maintaining the interval and is maintained by a preset distance, the block is released and the transfer is started. this can be maintained.

On the other hand, in the label take-out unit 120, the label paper 20 wound on the label roller 121 is drawn out and moved along the guide roller 122, and while passing through the label printer 123 in the process of being moved, the label paper 20 ), other necessary information such as the date of manufacture or barcode is printed in addition to the basic degree printed in advance, and the printed state by the label printer 123 is acquired as an image through the image acquisition camera 124 , then the scanner 125 reads the acquired image information, and the manufacturing date or barcode printed on the label paper 20 is scanned and transmitted to the controller 200 . [Step (a)]

In this case, the control unit 200 transmits and stores the information of the label scanned by the scanner 125 .

Furthermore, the printed state by the label printer 123 is acquired as an image through the image acquisition camera 124, and then the scanner 125 reads the acquired image information, and in the reading process, the label paper ( 20), in order to perform spacing and margin inspection, resolution inspection, and alignment inspection by color, the first step of photographing the printed label using the label printer 123, and image information Based on the second step of performing the inspection for each inspection item, and a third step of transmitting the reading result for the inspection item to the control unit may be included.

And the label of the first step includes an image or a line for at least one of an image for resolution inspection, an outline line for inspection of a blank space between labels, and a plurality of color-specific lines for color-specific alignment state inspection. can

That is, the inspection of the blank space of the label paper 20 can be made based on the outer line printed along the periphery of the label, that is, the sheet label, the number of pixels is calculated based on the image captured in the image detection area of any size, and the After converting the number of pixels to the distance from the end of the label to the outer line in consideration of the resolution of the image acquisition camera 214 that took the image, the blank space for the corresponding part is checked with the converted distance. .

As the boundary with the label can be clearly identified, the position of the end of the sheet border can also be clearly identified.

And once the control unit 200 detects a print defect, the print defect label is passed through, the position of the label is stored, and the label is taken out through the defect extraction unit 150 regardless of the degree of attachment of the label to the container 10 . it becomes

In addition, the control unit 200 controls the operation according to the input size of the container and the size of the lid or the supply speed of the container.

Subsequently, the label paper 20, which is conveyed while being guided by the path by the guide roller 122, returns to the rounded end side of the release paper separation plate 126, and the label sheet is separated from the label paper 20 by tension, The separated label is attached to the container 10 transported along the conveyor unit 110 . [Step (c)]

The label is attached at the same time as the container 10 enters the belt conveyor 132, and as the container 10 is rotated by the rotational operation of the belt conveyor 132, the label is attached from one end.

Here, the positioning plate portion 134 may be positioned in advance so that the container 10 can be in close contact with the belt conveyor 132 according to the size of the container 10 .

Subsequently, the container 10 to which the label is attached passes through the label reading camera 142 of the label inspection unit 140, and the scanner reads whether the label is adhered or adhered in the correct position, and by reading the acquired information, the control unit 200 ) to transmit the information. [Step (d)]

In more detail, since at least two label reading cameras 142 are provided, it is possible to acquire an upper image of an inspection object in a stereotype, so that a depth part can be mechanically recognized and an error about the depth part can be detected.

If there is no object other than the inspection between the label reading camera 142 and the inspection target, at least two label reading cameras 142 may each acquire an image of the inspection target, but the label reading camera 142 and the inspection target If there is a non-inspection object, for example, another container or other object between them, the at least two label reading cameras 142 may acquire an image of the test subject in which the non-inspection object is reflected or an image of the non-inspection object. .

Therefore, by using at least two label reading cameras 142, it is possible to detect not only an error of the inspection object itself but also an error caused by an object other than the inspection, thereby improving the reliability of the inspection.

In addition, the label reading camera 142 is connected to the control unit 200, the test target data, for example, a reference image for the label correctly pasted on the container 10 can be input in advance.

Accordingly, the control unit 200 can compare and analyze the reference image for the inspection target input in advance and the photographed image obtained from the label reading camera 142 .

Specifically, the control unit 200 checks whether the photographed image obtained from the label reading camera 142 matches the reference image for the inspection object input in advance, and there is an error in the inspection object itself or an error due to an object other than the inspection can determine whether

For example, the processor 200 determines that there is no error in the inspection object itself or an error due to an object other than the inspection when the photographed image acquired from the vision camera 100 and the reference image for the inspection object input in advance match each other. It can be determined, and when the photographed image obtained from the label reading camera 142 and the reference image for the pre-inputted inspection target do not match each other, it can be determined that there is an error in the inspection object itself or an error due to an object other than the inspection. .

Therefore, the control unit 200 operates the cylinder 156 to take out the defective container 10 passing through the defective extraction unit 150 , and the pusher 154 of the cylinder 156 moves in the orthogonal direction to the conveyor unit 110 . In the forward operation, the container 10 determined to be defective is pushed into the recovery box 152 . [Step (e)]

In addition, the container 10 to which the label separated due to printing defect in the label take-out unit 120 is attached is also carried out to the recovery box 152 .

Due to the functions as described above, by using an automated system that additionally prints and inspects the necessary items on the label paper, automatically attaches the label to the supplied product container, and selects and extracts the defective product according to the label, It is possible to apply labels accurately and firmly even if the shape and position of the product are different, and it is possible to improve the productivity according to labeling.

In the detailed description of the present invention, although specific embodiments have been described, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments and should be defined by the claims described below as well as the claims and equivalents.

10 : courage
20: label paper
100: work table 102: caster
110: conveyor unit 112: guide bar
114: cylinder for maintaining spacing 120: label withdrawing part
121: label roller 122: guide roller
123: label printer 124: image acquisition camera
125: scanner 126: release paper separation plate
130: container label attachment part 132: belt conveyor
134: positioning plate unit 140: label inspection unit
142: label reading camera 150: defective extraction unit
152: recovery box 154: pusher
156: cylinder

Claims (1)

In the labeling method by an automated device,
A step (a) of printing an additional item for each sheet of label paper drawn out from the label roller of the label take-out unit, and acquiring, reading and storing the printing state of the additional item of the label as an image;
Step (b) of supplying the container while maintaining a state spaced apart a predetermined distance along the conveyor;
step (c) of attaching the label to the container at the same time as the label is separated from the label paper by positioning the label take-out part close to the supplied container in a diagonal direction;
Step (d) of inspecting the state of the label attached to the container through a label inspection unit installed on the side of the conveyor unit;
The container determined to be defective through the label inspection unit is extracted to one side of the conveyor unit, and the normal product is moved (e),
In step (a),
The label pull-out unit,
The label roller on which the label paper is wound, and
A plurality of guide rollers for guiding the movement of the label paper drawn out from the label roller,
A label printer installed between the guide rollers to print a manufacturing date or barcode on the label paper;
An image acquisition camera for acquiring an image of the printing state of the label paper printed through the label printer;
a scanner for reading information acquired from the image acquisition camera;
A control unit for determining the printing state of the label from the image acquired from the image acquisition camera, storing the data information read by the scanner in the server for each printing state, and determining,
In step (c),
In the label take-out part, a release paper separation plate is located close to the belt conveyor in a diagonal direction, and is vertically installed at a certain angle in proximity to the belt conveyor, and the end is rounded in a circular cross-sectional shape. It is separated from the container and helps to attach only the label to the container,
In a state where only the label is attached to the container, the container label attachment part,
It is installed in the direction orthogonal to the progress of the conveyor unit and can move forward and backward, and includes a positioning plate unit for guiding a path so that the vessel moving along the conveyor unit is closely attached and moved so that the label is closely attached to the vessel,
In step (d),
at least two vision cameras facing the container to which the label is attached;
A reference image for the inspection object is input in advance, and an error in the inspection object itself and an error due to an object other than the inspection are detected by analyzing the reference image for the inspection object input in advance and the photographed images obtained from the at least two vision cameras. including a control unit for determining;
In the control unit,
determining whether there is an error in the inspection object itself or an error due to an object other than the inspection by checking whether the position of the photographed image acquired from the at least two vision cameras and the reference image for the inspection object input in advance is matched;
In step (e),
A recovery box installed at the rear end of the label inspection unit in the conveyor unit to collect defective products, and installed in a direction orthogonal to the progress of the conveyor unit to face the collection box so that forward and backward operation is possible, when determining defective products through the label inspection unit A labeling method, characterized in that the defective container is extracted by using a "L"-shaped pusher that pushes and positions the container in the recovery box, and a cylinder that operates the pusher.

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