WO2024014757A1

WO2024014757A1 - Composite filter segment length measurement device

Info

Publication number: WO2024014757A1
Application number: PCT/KR2023/009212
Authority: WO
Inventors: 이승재
Original assignee: 이승재
Priority date: 2022-07-13
Filing date: 2023-06-30
Publication date: 2024-01-18
Also published as: KR102491016B1

Abstract

The present invention relates to a composite filter segment length measurement device and, more specifically, to a composite filter segment length measurement device which analyzes a video image obtained by transmitting light through a measurement object and then photographing the object by a photographing unit, and thus can accurately measure the length of each of a plurality of filter segments of the corresponding measurement object. To this end, the present invention comprises: a light source which emits light in at least one direction; a photographing unit positioned to be spaced apart from a measurement object in one direction to photograph the measurement object, the measurement object being positioned to be spaced apart from the light source in one direction; and a length calculation unit which receives captured video information from the photographing unit to calculate the total length of a measurement object in the video information and the length of each of a plurality of filter segments.

Description

Complex filter segment length measuring device

The present invention relates to a complex filter segment length measuring device. More specifically, the present invention relates to a device for measuring the length of a plurality of filter segments of a measurement object, and more specifically, by transmitting light through a measurement object and analyzing a video image taken by a photographing unit to precisely measure each length of a plurality of filter segments of the measurement object. It relates to a complex filter segment length measuring device that can

Generally, a composite filter in which at least two or three filters with different components are joined in series is used for the purpose of diluting the inhalation flow of tobacco as well as improving the quality of the tobacco.

In manufacturing such a composite filter, at least two or three filters with different components are joined in succession to produce at least two sets of composite filters.

However, when manufacturing a composite filter, in the process of joining piece-shaped filters, there are cases where non-standard filters or filter alignment errors occur, or gap errors occur between filters due to poor bonding, resulting in product defects. there is.

Therefore, when such a defective product is applied to a cigarette, it will result in a decrease in the overall quality of the cigarette. Therefore, it is desirable to conduct a preliminary inspection for each composite filter manufactured and select and supply only good products.

Accordingly, the conventional composite filter inspection method involves checking the filter arrangement with the operator's naked eye, and then selecting defective or good composite filters using a ruler or measurer for composite filters with normal arrangement.

However, this conventional visual inspection method is not performed during the manufacturing process of the composite filter, but rather involves visual inspection by the worker in the finished product state, which not only increases the eye fatigue of the worker, but also reduces the accuracy of product inspection. There are unhygienic defects, such as stains on workers' hands.

In addition, in order to solve this problem, an X-ray measuring device was developed that examines composite filters by radiating There is a problem that the reliability of the test is lowered.

(Patent Document 1) Korean Patent Publication No. 10-1995-0000078

The present invention was developed to solve the above problems. By transmitting light through a measurement object and calculating the total length of the measurement object and the length of each of the plurality of filter segments through a video image captured by a photographing unit, a relatively simple structure allows for quick, The purpose is to provide a complex filter segment length measuring device that can accurately determine product defects.

The present invention has the following features to solve the above problems.

The present invention provides a light source that irradiates light in at least one direction; a photographing unit positioned away from the measurement object in one direction to photograph the measurement object positioned away from the light source in one direction; and a length calculation unit that receives image information captured from the photographing unit and calculates the total length of the measurement object in the image information or the length of each of the plurality of filter segments.

Here, the length calculation unit recognizes vertical lines appearing between a plurality of filter segments in the image information and distinguishes each of the plurality of filter segments.

In addition, the measurement object is arranged so that the arrangement direction between the plurality of filter segments and the one direction are perpendicular to each other, and the jig part supports the measurement object.

In addition, the jig part is formed to correspond to the measurement object in shape and includes a seating surface that supports the measurement object, and the seating surface is in contact with the measurement object on one side and is spaced apart from the light source on the other side.

In addition, the seating surface is formed of a light-transmitting material, and the jig part includes a measurement object accommodating portion including the seating surface, and the measurement object accommodating portion is installed to be movable in an arrangement direction between the plurality of filter segments.

In addition, the jig part further includes a driving part that moves the measurement object accommodating part, and the driving part repeats movement and stopping based on a preset measurement object length to be photographed through the photographing unit for each of the plurality of measurement objects.

Additionally, the length calculation unit outputs defect notification information when at least one filter segment exceeds the allowable length range based on a preset allowable length range for each of the plurality of filter segments.

In addition, a display means for outputting image information captured by the photographing unit is further included, wherein the display means receives the total length of the measurement object calculated from the length calculation unit and the lengths of each of the plurality of filter segments and displays the image information. Print together.

According to the present invention, the total length of a measurement object having a plurality of filter segments and the length of each filter segment can be calculated in a relatively simple configuration through the light source and the imaging unit, and the time required for calculation is reduced and the measurement reliability is high. there is.

Figure 1 is a block diagram showing the configuration of a complex filter segment length measuring device according to an embodiment of the present invention.

Figure 2 is a diagram schematically showing a complex filter segment length measuring device according to an embodiment of the present invention.

Figure 3 is an exploded perspective view of a jig portion according to an embodiment of the present invention.

Figure 4 is a photograph showing image information of a measurement object taken using a complex filter segment length measuring device according to an embodiment of the present invention.

Figure 5 is a diagram showing the length of each filter segment calculated through the composite filter segment length measuring device of the present invention for each measurement object group and the length of each filter segment calculated through the X-ray measuring device.

FIG. 6 is a diagram showing the calculation results of the complex filter segment length measuring device of the present invention for the fifth group of FIG. 5.

Figure 7 is a diagram showing a jig portion according to another embodiment of the present invention.

In order to explain the present invention, its operational advantages, and the purpose achieved by practicing the present invention, preferred embodiments of the present invention are illustrated and discussed with reference to them.

First, the terms used in this application are only used to describe specific embodiments and are not intended to limit the present invention, and singular expressions may include plural expressions unless the context clearly indicates otherwise. In addition, in the present application, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other It should be understood that this does not exclude in advance the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof.

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.

Figure 1 is a block diagram showing the configuration of a composite filter segment length measuring device according to an embodiment of the present invention, and Figure 2 is a diagram schematically showing a composite filter segment length measuring device according to an embodiment of the present invention. Figure 3 is an exploded perspective view of a jig portion according to an embodiment of the present invention.

Referring to the drawings, a composite filter segment length measuring device 1000 according to an embodiment of the present invention includes a light source 100 that irradiates light in at least one direction, and a measurement spaced apart from the light source 100 in one direction. A photographing unit 300 positioned spaced apart from the measurement object 200 in one direction to photograph the object 200 and receiving image information captured from the photographing unit 300 to determine the total length of the measurement object 200 in the image information. It is configured to include a length calculation unit 400 that calculates a length (TL) and a length (SL) for each of a plurality of filter segments.

That is, in the complex filter segment length measuring device 1000 according to an embodiment of the present invention, the light source 100, the measurement object 200, and the imaging unit 300 are arranged in one direction so that the light emitted from the light source 100 It passes through the measurement object 200 and is collected by the photographing unit 300, and through this, the photographing unit 300 generates photographing information.

The generated shooting information is transmitted to the length calculation unit 400 to determine the total length (TL) of the cigarette having a plurality of filter segments 210, which is the measurement object 200, and each length of the plurality of filter segments 210, that is, The length (SL) for each filter segment is calculated.

For this purpose, the light source 100 is suitably a ring-type or bar-type light source applied to a vision system, and may irradiate light in all directions, but may emit light in one direction toward the measurement target 200. It would be more efficient to investigate.

Meanwhile, the measurement object 200 is a cigarette including a plurality of filter segments 210 as described above, and is preferably positioned between the light source 100 and the imaging unit 300.

In addition, a jig part 500 may be included to take pictures while the measurement object 200 is fixed. The jig part 500 includes a seating surface 521 for fixing the cigarette, which is the measurement object 200.

This seating surface 521 is preferably made of a light-transmissive material to stably fix the measurement object 200 and allow the light irradiated from the light source 100 to proceed to the measurement object 200, and the seating surface 521 and the measurement In order to minimize reflection and scattering of light between the objects 200, it is preferable that the measurement object 200 be formed in a shape that corresponds to the measurement object 200 in shape so that the measurement object 200 is in close contact with the seating surface 521.

Of course, other parts except the seating surface 521 of the jig part 500 can be made of non-transmissive material so that only the measurement object 200 is photographed accurately by the photographing unit 300. .

According to one embodiment of the present invention, such a jig part 500 includes a light source receiving part 510 that accommodates a certain portion of the light source 100 and the above-described seating surface 521, so that the measurement object 200 is fixed to a certain amount. It may be composed of a measurement object receiving part 520 that partially supports or accommodates it.

Of course, a portion of the entire housing of the light source accommodating part 510 may become the measurement object accommodating part 520, and the light source accommodating part 510 excluding the measuring object accommodating part 520 is exposed to the light irradiated from the light source 100. It may be made of a non-transmissive material so that light propagates only to the measurement object 200.

In addition, the measurement object 200, which is seated on the seating surface 521 of the jig part 500, has a direction in which the plurality of filter segments are arranged in succession and a direction opposite to that of the light source 100 and the photographing unit 300, which are perpendicular to each other. However, if the measurement object 200 is arranged so that these directions are parallel to each other, each filter segment will not appear from the image information captured by the imaging unit 300.

Meanwhile, the imaging unit 300 generates image information by collecting the light emitted from the light source 100 as it passes through the measurement object 200. This image information includes a plurality of filter segments 210 included in the measurement object. It includes a vertical line that is the boundary between the livers.

That is, the present invention can distinguish a plurality of filter segments 210 through vertical lines in such image information, and can measure the total length of the measurement object 200 and the length of each filter segment 210.

The total length (TL) of the measurement object 200 and the length (SL) of each filter segment are calculated by the length calculation unit 400, which calculates the image information generated from the photographing unit 300. is received and the total length (TL) of the measurement object 200 and the length (SL) of each filter segment are calculated using the vertical line (VL) in the image information.

Here, the vertical line (VL) may appear as a fine gap is formed even when each filter segment is in close contact with each other.

For example, when the photographing unit 300 captures images with 64 million pixels, such a fine gap may not be distinguishable to the operator's eyes, but the length calculation unit 400 can sufficiently recognize the vertical line (VL).

As the distinction between each filter segment becomes clearer through this vertical line (VL), a more precise and reliable filter segment length value is derived.

In addition, the total length (TL) of the measurement object 200 is configured so that the length of the measurement object in the image information is measured at a specific ratio based on the preset distance between the imaging unit 300 and the measurement object 200, or is measured separately. The entire length of the measurement object 200 can be measured by having the operator input the reference length, and through this, the length (SL) of each filter segment can also be measured based on this.

Meanwhile, in the present invention, a display means 600 for outputting image information captured by the photographing unit 300 may be included. This display means 600 may include the total length of the measurement object calculated from the length calculation unit 400. (TL) and the length (SL) of each filter segment can be received and output together with the image information.

In addition, through the display means 600, the length calculation unit 400 determines whether at least one filter segment 210 exceeds the allowable length range based on a preset allowable length range for each of the plurality of filter segments 210. In this case, defective notification information can be output.

Of course, this defective notification information may be simultaneously output in the form of a warning sound through a separate notification device, for example, a voice output device 700 such as a speaker, in addition to the display means 600.

Figure 4 is a photograph showing image information of a measurement object taken using a composite filter segment length measuring device according to an embodiment of the present invention, and Figure 5 is a photograph showing image information of a measurement target for each group of measurement objects through the composite filter segment length measuring device of the present invention. It is a diagram showing the calculated length of each filter segment and the length of each filter segment calculated through an am.

Figure 4 shows image information captured through the complex filter segment length measuring device 100 of the present invention, and it can be seen that vertical lines (VL) are clearly visible between each filter segment 210.

In addition, Figure 5 shows the measurement values of the lengths of each filter segment of different measurement objects for each of the five groups calculated using the composite filter segment length measuring device according to the present invention and an As shown, it can be seen that in the case of the 5th group, the X-ray measuring machine was not calculated.

However, as shown in FIG. 6, it can be seen that the complex filter segment length measuring device 100 according to the present invention calculates the length of each filter segment of the measurement target.

As such, the complex filter segment length measuring device 100 according to the present invention has a very simple configuration compared to expensive It can be seen that the measurement range is also wide.

Referring to the drawings, the jig unit 500 according to the present invention has a plurality of measurement objects 200, rather than a single measurement object 200, arranged continuously in the arrangement direction between the plurality of filter segments on the seating surface 521. .

In addition, as described above, the measurement object receiving portion including the seating surface is installed to be movable in the direction of arrangement between the plurality of filter segments.

For this purpose, a driving unit 530 is provided that drives the measurement object accommodating part for a certain length in the arrangement direction between the plurality of filter segments, stops it, and repeats driving for a certain length.

This drive unit 530 may be a pneumatic cylinder 531 or a hydraulic cylinder having a cylinder rod 531a fixedly connected to one side of the measurement target accommodation unit 520 in FIG. 3. In another embodiment, a drive motor may be used. The measurement target accommodating part 520 may be configured to move in the form of a moving rail that moves according to the rotation of , and may be configured in various other forms.

This driving unit 530 is used to quickly photograph a plurality of measurement objects while moving them.

Although preferred embodiments of the present invention have been described above, the present invention is not limited to the specific embodiments described above. In other words, a person skilled in the art to which the present invention pertains can make numerous changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such appropriate changes and modifications can be made. Equivalents should be considered as falling within the scope of the present invention.

[Explanation of symbols]

100: light source

200: Measurement object

210: filter segment

300: Filming department

400: Length calculation unit

500: Jig part

510: Light source receptor

520: Measurement object receiving part

521: Seating surface

530: driving unit

600: Display means

700: Voice output device

1000: Complex filter segment length measuring device

VL: vertical line

TL: total length

SL: Length of each filter segment

The present invention has industrial applicability because it relates to a composite filter segment length measuring device that can precisely measure each length of a plurality of filter segments.

Claims

A light source that irradiates light in at least one direction;

a photographing unit positioned away from the measurement object in one direction to photograph the measurement object positioned away from the light source in one direction; and

A length calculation unit that receives image information captured from the photographing unit and calculates the total length of the measurement object in the image information or the length of each of a plurality of filter segments,

The length calculation unit,

Recognizing vertical lines appearing between a plurality of filter segments in the image information to distinguish each of the plurality of filter segments,

Measuring the total length of the measurement object or the length of each filter segment based on the preset distance between the imaging unit and the measurement object.

A composite filter segment length measuring device characterized by a.
According to paragraph 1,

The measurement object is

Arranged so that the arrangement direction between a plurality of filter segments and the one direction are perpendicular to each other

A composite filter segment length measuring device characterized by a.
According to paragraph 2,

Further comprising a jig portion supporting the measurement object.

A composite filter segment length measuring device characterized by a.
According to paragraph 3,

The jig part

It includes a seating surface formed to correspond to the measurement object in shape and supporting the measurement object,

The seating surface is in contact with the measurement object on one side and is spaced apart from the light source on the other side.

A composite filter segment length measuring device characterized by a.
According to paragraph 4,

The seating surface is

Formed from a light-transmitting material

A composite filter segment length measuring device characterized by a.
According to clause 5,

The jig part

It includes a measurement object receiving portion including the seating surface,

The measurement object receiving part is

Installed to allow movement in the direction of arrangement between a plurality of filter segments

A composite filter segment length measuring device characterized by a.
According to clause 6,

The jig part

It further includes a driving unit that moves the measurement object accommodation unit,

The driving part

Moving the measurement object accommodating part a certain length based on the preset measurement object length to be photographed through the imaging unit for each of the plurality of measurement objects and then repeating stopping for a certain period of time.

A composite filter segment length measuring device characterized by a.
According to paragraph 2,

The length calculation unit

If at least one filter segment exceeds the allowable length range based on the allowable length range preset for each of the plurality of filter segments,

Printing bad notification information

A composite filter segment length measuring device characterized by a.
According to clause 8,

A display means for outputting image information captured by the photographing unit; is further included,

The display means is

Receiving the total length of the measurement object and the length of each filter segment calculated from the length calculation unit and outputting them together with the image information

A composite filter segment length measuring device characterized by a.