KR102481716B1 - Cap height measurement method using automatic cap height measuring device for beverage containers - Google Patents

Abstract

The present invention relates to a cap height measuring method using an automatic cap height measuring device for a beverage container. More specifically, it relates to a method for measuring the height of a cap for a beverage container using a device for automatically measuring the height dimension of the stopper, that is, the cap, of an aluminum container for storing beverages, etc., which relates to a height for a plurality of caps. It is possible to improve the process speed for measuring the height of the cap by continuously measuring the dimensions, and it is possible to significantly reduce the measurement error because the height of the cap can be measured in a non-contact method. When measuring the height of the entire circumference, Can measure the height of several points in a single operation, and can automatically convert the height of the cap measured at each measurement point into data so that quality control of the cap is easy. It's about how to measure height.
To this end, the present invention marks the start point for starting the height dimension measurement test on the inspection cap, rotates the inspection cap, recognizes the start point in the vision camera, and recognizes the start point in the vision camera, and rotates the inspection cap. After that, the vision camera provides a cap height measurement method using an automatic height measurement device for a beverage container cap, which includes measuring the height along the entire circumference of the cap for inspection using the start point as the starting point for height measurement.

Description

Cap height measurement method using automatic cap height measuring device for beverage containers}

The present invention relates to a cap height measuring method using an automatic cap height measuring device for a beverage container. More specifically, it relates to a method for measuring the height of a cap for a beverage container using a device for automatically measuring the height dimension of the stopper, that is, the cap, of an aluminum container for storing beverages, etc., which relates to a height for a plurality of caps. It is possible to improve the process speed for measuring the height of the cap by continuously measuring the dimensions, and it is possible to significantly reduce the measurement error because the height of the cap can be measured in a non-contact method. When measuring the height of the entire circumference, Can measure the height of several points in a single operation, and can automatically convert the height of the cap measured at each measurement point into data so that quality control of the cap is easy. It's about how to measure height.

An aluminum container is manufactured by pressing or injection molding using a soft aluminum sheet, and is mainly used to store beverages and the like.

In the case of an aluminum container for beverages, a circular container stopper (cap) for sealing the container is also made of aluminum, and it is necessary to inspect the height of the cap during manufacture.

When measuring the height of the cap, in the conventional field, a worker manually measures the height of the cap one by one using a height measuring gauge such as a height gauge.

In addition, since the upper end of the circular cap is curved in a wave form along the circumference of the cap during measurement, the height is measured at several points along the circumference of the cap instead of measuring the height at one point.

However, since this method measures the height by directly contacting the cap with the height measurement gauge, measurement errors frequently occur, and since dimension measurement must be performed at several points for one cap, the process speed for dimension measurement is slowed down. There is a very slow problem.

Therefore, it is necessary to continuously measure the height dimensions of a plurality of caps by an automatic method to improve the process speed for measuring the height dimensions, and to measure the height of the caps in a non-contact method using a vision camera or a laser sensor, resulting in a measurement error. It is necessary to significantly reduce the height of the entire circumference of the cap, and at the same time measure the height of the cap with one action for several measurement points, and automatically convert it into data to facilitate quality control of the cap. A new means of doing so is needed.

Prior art literature: KR Patent Publication No. 10-2014-0121662 (published on October 16, 2014)

The present invention has been made to solve the above problems, and measures the height of the beverage container cap using a device for automatically measuring the height dimension of the stopper, that is, the cap, of an aluminum container storing beverages, etc., The process speed for measuring the height of a cap can be improved by continuously measuring the height dimension of a number of caps, and the measurement error can be remarkably reduced because the height of a cap can be measured in a non-contact method. When measuring the cap, it is possible to measure the height of several points of the cap with one operation, and the height of the cap measured at each measurement point can be automatically converted into data so that the quality control of the cap is easy. Its purpose is to provide a cap height measuring method using a height measuring device.

In order to achieve the above object, the cap height measuring method using the automatic cap height measuring device for beverage containers according to the present invention, which was devised to achieve the above object, marks the starting point for starting the height dimension measurement test on the test cap and rotates the test cap, The vision camera recognizes the start point, and when the vision camera recognizes the start point, the inspection cap rotates, and then, the vision camera uses the start point as the starting point for height measurement to measure the height along the entire circumference of the inspection cap. may include

In addition, the vision camera unit may further include measuring the height of the test cap at various positions of the test cap.

In addition, the height of the measured test cap at each measurement point is stored as data, and the height data of the test cap measured at each measurement point can be expressed as a graph in the form of a sine wave according to the height of each measured point. There may be more to include.

According to the present invention, by continuously measuring the height dimensions of a plurality of caps by an automatic method, there is an effect of improving the process speed for measuring the height of the cap.

In addition, since the height of the cap can be measured in a non-contact manner, a measurement error can be significantly reduced.

In addition, when measuring the height of the entire circumference, the height of several points of the cap can be measured and extracted in one motion, and the extracted height of the cap can be automatically converted into data, making it easy to manage the quality of the cap. It works.

1 is a perspective view showing a state in which a cap storage unit is located outside an outer frame 110 in an automatic height measuring device for a beverage container according to a preferred embodiment of the present invention;
2 is an enlarged perspective view of an automatic cap height measuring device for a beverage container according to a preferred embodiment of the present invention;
3 is a perspective view showing a cap storage unit;
4 is a plan view and a front view of the cap storage unit;
5 is a view showing a state in which the cap storage part slides;
6 is a view showing a cap transfer unit;
7 is a view showing the sliding movement state of the cap transfer unit;
8 is a view showing a cap seating jig part, a rotator part, and a cap flat part;
9 is a cross-sectional view of a cap seating jig part, a rotator part, and a cap flat part;
10 is a view showing a vision camera unit.
11 and 12 are diagrams showing data obtained by measuring a cap for a beverage container according to a cap height measurement method using an automatic beverage container cap height measuring device according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted. In addition, although preferred embodiments of the present invention will be described below, the technical idea of the present invention is not limited or limited thereto and can be modified and implemented in various ways by those skilled in the art.

1 is a perspective view showing a state in which the cap storage unit is located outside the outer frame 110 in an automatic height measuring device for a beverage container according to a preferred embodiment of the present invention, Figure 2 is a beverage according to a preferred embodiment of the present invention An enlarged perspective view of an automatic cap height measuring device for a container, FIG. 3 is a perspective view showing a cap compartment, FIG. 4 is a plan view and a front view of the cap compartment, and FIG. 5 shows a sliding movement of the cap compartment. Figure 6 is a view showing the cap transfer unit, Figure 7 is a view showing the sliding motion state of the cap transfer unit, Figure 8 is a view showing the cap seating jig unit, the rotator unit and the flat cap portion, Figure 9 is A cross-sectional view of the cap seating jig part, the rotator part, and the cap flat part, FIG. 10 is a view showing the vision camera part, and FIGS. 11 and 12 are a cap automatic height measuring device for a beverage container according to a preferred embodiment of the present invention. It is a diagram showing the result data of measuring the cap for the beverage container according to the cap height measurement method used.

Referring to FIGS. 1 to 10, the automatic cap height measuring device for a beverage container according to a preferred embodiment of the present invention includes a cap storage unit 10, a cap transfer unit 20, a cap seating jig unit 30, and a rotator unit. (40), a flat cap portion (50), and a vision camera portion (60).

First, the apparatus for automatically measuring the height of a cap for a beverage container according to the present invention is a device for automatically measuring the height dimension of a stopper, that is, a cap, of an aluminum container storing beverages, etc., and continuously measures the height dimension of a plurality of caps. It has a feature that can improve the process speed for measuring the height of the cap.

In addition, there is a feature that can significantly reduce the error according to the measurement by measuring the height of the cap in a non-contact method using a vision camera unit or a laser sensor.

In addition, it is possible to rotate the cap 360 degrees and measure the height around the entire cap. It is characterized by being able to measure and extract the height of several points in one motion by measuring the height at each 1 degree for 360 degrees.

In addition, the height of the cap measured at each measurement point can be automatically converted into data and stored, and the height of the curved cap can be implemented as a graph in the form of a sine wave using this data, so the quality control of the cap is easy.

Hereinafter, the components of the automatic cap height measuring device for a beverage container according to a preferred embodiment of the present invention will be described in detail.

As shown in FIGS. 1 and 3 , a plurality of inspection caps 2 for measuring height dimensions are arranged in the cap storage unit 10 in horizontal and vertical directions.

Here, the inspection cap 2 is placed so that the sealing part, one side of which is sealed, is located on the upper side, as shown in FIGS. 3 and 4 .

As shown in FIGS. 2 to 4 , the cap storage unit 10 has a plurality of cap insertion units 12 into which the lower part of the cap 2 for inspection is inserted.

The cap insertion portion 12 is formed in the form of a protruding protrusion, and the inspection caps 2 are inserted and seated in the cap insertion portion 12 in an extrapolated form one by one.

Meanwhile, referring to FIGS. 1 and 5 , when the operator stores the inspection cap 2 in the cap storage unit 10 located outside the outer frame 110 surrounding the outside of the inspection table 100, the cap storage unit 10 ) moves in the direction of the inspection table 100 located inside the outer frame 110 while performing a sliding motion.

Specifically, referring to FIGS. 1 and 3 , the cap storage unit 10 is provided above the sliding plate 16 that slides along the first linear guide 14 .

When the sliding plate 16 slides along the first linear guide 14, the cap holder 10 provided on the upper part of the sliding plate 16 performs a sliding movement together, and from the outside of the outer frame 110 It is transported in the inner direction of the outer frame 110 where the inspection table 100 is located.

Here, the inspection table 100, as shown in FIG. 1, is installed with components constituting the automatic height measuring device for the beverage container cap according to the present invention, and provides a space where the height dimension measurement test of the inspection cap 2 is performed. say

Referring to FIGS. 2, 6, and 7, the cap transfer unit 20, when the cap storage unit 10 is transferred in the direction of the inspection table 100, removes the inspection cap 2 placed on the cap storage unit 10 using a vacuum adsorption method. adsorbed, and transferred to the cap seating jig part 30 described below.

Specifically, referring to FIGS. 6 and 7, the cap transfer unit 20 moves upward and downward along the second linear guide 22, and as shown in FIG. 7, during the downward movement, the cap transfer unit ( The vacuum suction device 24 provided in 20) vacuums and lifts the inspection cap 2 placed in the cap storage unit 10.

In addition, as shown in FIG. 7, the cap transfer unit 20 performs a forward or backward sliding movement along the third linear guide 26 and a sliding movement in the left or right direction along the fourth linear guide 28, and The inspection cap 2 is moved to the cap seating jig 30 described above.

That is, the cap transfer unit 20 performs a sliding motion in the X-axis, Y-axis, and Z-axis directions, and transfers the inspection cap 2 stored in the cap storage unit 10 to the cap seating jig unit 30 .

Referring to FIGS. 2 and 8, the cap seating jig part 30 is provided at a position where the height of the inspection cap 2 is measured, and the open surface of the inspection cap 2 transported by the cap transfer unit 20. It is seated in the form of being extrapolated and inserted into the upper part of the cap seating jig part 30.

Referring to FIGS. 2, 8, and 9, the rotator unit 40 rotates in the left or right direction by a driving device including a motor, and the rotator unit 40 includes a cap flat portion 50 described below is provided

Specifically, when the cap transfer unit 20 transfers the inspection cap 2 and places it on the cap seating jig unit 30, the rotator unit 40 moves the left or right side to avoid collision interference of the cap transfer unit 20. It rotates to the right, and an avoidance maneuver is performed so as not to overlap with the traveling path of the cap transfer unit 20.

Referring to FIGS. 2, 8, and 9, the cap flat portion 50 is provided to prevent errors that may occur when measuring the height due to the curve formed on the inner sealing surface of the inspection cap 2, and the inspection cap It performs the function of fixing the sealing surface of (2) flatly by pressing it from the outside.

As shown in FIGS. 2, 8, and 9, the cap flat portion 50 is provided in the rotator portion 40, and the cap pressing jig 52 provided in the cap flat portion 50 is moved upward by a pneumatic method or the like. or downward movement.

Specifically, when the cap transfer unit 20 transfers the inspection cap 2 to the cap seating jig unit 30 and places the inspection cap 2 on top of the cap seating jig unit 30, the rotator unit 40 is rotated to position the cap flat part 50 in the upper direction of the inspection cap 2.

Then, as the cap pressing jig 52 provided on the cap flat part 50 and performing an up and down movement descends downward, the sealing surface of the inspection cap 2 seated on the upper part of the cap seating jig part 30 is removed from the outside. Press down on it to fix it evenly.

Here, the cap flat part 50 is the inspection cap ( 2) while rotating together, the test cap (2) is pressed and maintained.

In addition, when the height measurement of the inspection cap 2 is completed, the cap pressing jig 52 provided on the cap flat part 50 moves upward again and separates from the inspection cap 2 that has been pressed, the rotator unit 40 ) rotates again and moves to the position of the initial standby state.

Thereafter, the cap transfer unit 20 separates the inspection cap 2 from the cap seating jig unit 30 and transfers the inspection cap 2 to the initial position of the cap storage unit 10 to be seated therein.

Referring to FIGS. 2 and 10, in the vision camera unit 60, the inspection cap 2 is seated on the cap seating jig unit 30, and the cap flat portion 50 covers the outer sealing surface of the inspection cap 2. When fixed flat, the height of the inspection cap 2 is inspected in a non-contact manner along the circumference of the side of the inspection cap 2.

On the other hand, in the present invention, the cap seating jig part 30 can be rotated by a driving device including a driving motor, and when the cap seating jig part 30 rotates, the cap flatness pressing the inspection cap 2 from the top The unit 50 also rotates with the cap seating jig unit 30 while pressing the inspection cap 2.

As the cap seating jig part 30 rotates, when the inspection cap 2 seated on top of the cap seating jig part 30 rotates, the vision camera unit 60 rotates the entirety of the inspection cap 2 The height dimension is measured along the circumference.

Meanwhile, a method of inspecting the height dimension of the inspection cap 2 using the apparatus according to the present invention will be described as follows.

First, a start point for starting a height dimension measurement test is marked on the inspection cap 2.

When the cap seating jig part 30 rotates and the inspection cap 2 rotates, the vision camera unit 60 recognizes the start point marked on the rotating inspection cap 2.

When the vision camera unit 60 recognizes the start point marked on the inspection cap 2, the recognized start point is used as the starting point for the height dimension measurement inspection, and the inspection cap 2 seated on the cap seating jig unit 30 ) rotates 360 degrees.

At this time, the vision camera unit 60 measures the height according to the circumference of the rotating test cap 2 and performs the test.

Meanwhile, in the vision camera unit 60, the height of the test cap 2 is measured for various positions of the test cap 2.

Specifically, when the inspection cap 2 rotates, if the user arbitrarily sets a height measurement position according to the rotation angle, the vision camera unit 60 measures the height of the inspection cap 2 at each set angle.

In one embodiment, when the inspection cap 2 rotates 360 degrees, when the height according to the circumference of the inspection cap 2 is set to be measured every time the inspection cap 2 rotates 1 degree, the vision camera unit ( 60) measures the height of the inspection cap 2 at each set rotation angle.

The height of each measuring point of the cap 2 for inspection measured in this way is stored as data.

In addition, the height data of the test cap 2 measured at each measurement point may be expressed as a graph in the form of a sine wave according to the height of each measured point.

To measure the height of the inspection cap (2), set the center of the height of the inspection cap (2), measure the height of the inspection cap (2) upward from the set height center, or inspect the sealing surface of the inspection cap (2). The total height of the dragon cap 2 can be measured.

The above description is merely an example of the technical idea of the present invention, and those skilled in the art can make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. . The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

2 - inspection cap 10 - cap compartment
20 - Cap transfer unit 30 - Cap seating jig unit
40 - rotator part 50 - cap flat part
60 - vision camera unit 100 - inspection table
110 - Outer frame

Claims (3)

Mark the start point for starting the height dimension measurement inspection on the inspection cap (2),
The inspection cap 2 placed in the cap storage unit 10 is adsorbed by a vacuum adsorption method and transferred to the top of the cap seating jig unit 30,
The rotator part 40 rotates to position the cap flat part 50 in the upper direction of the inspection cap 20,
While the cap pressing jig 52, which is provided in the cap flat part 50 and moves up and down, descends downward, it presses the sealing surface of the inspection cap 2 seated on the top of the cap seating jig part 30 and fixes it flat. let it,
When the cap seating jig part 30 rotates, the cap flat part 50 pressing the inspection cap 2 also rotates together with the cap seating jig part 30 while pressing the inspection cap 2 ,
As the cap seating jig part 30 rotates, when the inspection cap 2 seated on the top of the cap seating jig part 30 rotates,
In the vision camera 60, the height along the entire circumference of the inspection cap 2 is measured using the start point as the starting point of height measurement,
When the height measurement of the inspection cap 2 is completed, the cap pressing jig 52 provided in the cap flat part 50 moves upward again and separates from the inspection cap 2 that has been pressed, the rotator unit 40 It rotates again and moves to the position of the initial standby state,
The cap transfer unit 20 separates the inspected cap 2 from the cap seating jig unit 52 and transports it to the initial position of the cap storage unit 10 to seat it.
including,
In the vision camera unit 60, the height of the inspection cap 2 is measured for a plurality of positions of the inspection cap 2.
Including,
The height of each measurement point of the measured inspection cap 2 is stored as data,
The height data of the inspection cap (2) measured at each measuring point is expressed as a graph in the form of a sine wave according to the height of each measured point.
Cap height measuring method using a cap automatic height measuring device for a beverage container comprising a.
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