KR100468263B1 - Apparatus for Leather Thickness Measurement - Google Patents
Apparatus for Leather Thickness Measurement Download PDFInfo
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- KR100468263B1 KR100468263B1 KR10-2003-0012707A KR20030012707A KR100468263B1 KR 100468263 B1 KR100468263 B1 KR 100468263B1 KR 20030012707 A KR20030012707 A KR 20030012707A KR 100468263 B1 KR100468263 B1 KR 100468263B1
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- leather
- thickness
- measuring
- load
- rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
- G01B7/15—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures being regularly spaced
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
본 발명은 피혁의 두께 측정에 관한 것으로, 종래에는 작업자가 수동으로 피혁의 정량적 요소인 두께를 측정하던 것을 피혁가공의 최종 공정에서 제품정보를 제공하기 위한 기초 데이터인 피혁의 두께를 측정하여 피혁품질의 표준화를 유도하는데 있다. 상기의 목적 달성을 위한 본 출원의 피혁 두께 측정장치는 피혁의 두께를 측정하기 위한 센서부와 센서부를 조절하기 위한 콘트롤러부 측정된 결과를 표시하기 위한 디스플레이부 및 전원 공급장치로 구성되어 있다.본 발명의 목표는 향후 e-market place에 대비하여 제품의 표준화를 통하여 현재 인건비 비중이 높음 신발 피혁용 분야의 자동화를 추구하여 인건비 절감에 의한 가격 경쟁력 확보 및 생산성 향상이 가능하도록 하는데 있다.The present invention relates to the measurement of the thickness of the leather, in the prior art by measuring the thickness of the leather, which is the basic data for providing product information in the final process of leather processing, the operator manually measured the thickness, which is a quantitative element of the leather To induce standardization. Leather thickness measuring apparatus of the present application for achieving the above object is composed of a sensor unit for measuring the thickness of the leather and a controller unit for adjusting the sensor unit and a display unit and a power supply for displaying the measured results. The aim of the present invention is to increase the cost of labor and improve productivity by reducing labor costs by pursuing automation in the field of footwear leather through the standardization of products for the future e-market place.
Description
본 발명은 피혁의 두께 측정 센서를 이용한 피혁의 두께 측정 장치에 관한 것으로, 피혁의 품질을 좌우하는 정량적 요소인 두께를 자동적으로 측정 함으로서 객관화된 측정치를 제공함으로써 향후 전자상거래등의 정량적 요소로서 사용가능하고 측정에 걸리는 시간을 단축하여 생산 효율을 증대시키고자 하는 것이다.The present invention relates to a thickness measuring apparatus of a leather using a thickness measuring sensor of the leather. The present invention can be used as a quantitative component of e-commerce in the future by providing an objective measurement value by automatically measuring thickness, which is a quantitative factor that determines the quality of leather. In order to increase the production efficiency by reducing the time taken for measurement.
피혁은 어느 제품보다 부가가치가 높은 천연자원으로 품질의 등급에 따라 많은 가격차를 형성하게 되며, 피혁 제품의 품질을 결정함에 있어 피혁의 두께도 품질결정의 중요한 요인 중의 하나이다.지금까지는 피혁공장에서 대부분의 피혁을 수동으로 선별하여 오고 있으며 두께의 측정도 작업자에 의하여 수동으로 이루어지고 있다. 이러한 방법은 두께를 측정하는데 많은 노동력과 시간이 소모되고, 일관성이 부족할 뿐만 아니라 정밀한 치수를 측정할 수가 없고, 더욱이 안전사고 등에 대비한 환경이 조성되어 있지 않았다.Leather is a natural resource with higher added value than any other product, which makes a lot of price difference according to the grade of quality, and the thickness of leather is also an important factor in quality determination in determining the quality of leather products. Leather has been sorted manually and the thickness is also measured manually by the operator. This method consumes a lot of labor and time to measure thickness, is not consistent, and it is impossible to measure precise dimensions. Furthermore, there is no environment for safety accidents.
본 발명의 목표는 향후 e-market place에 대비하여 제품의 표준화를 통하여 현재 인건비 비중이 높음 신발 피혁용 분야의 자동화를 추구하기 위하여 피혁의 자동 두께 측정 장치를 개발하여 인건비 절감에 의한 가격 경쟁력 확보 및 생산성 향상이 가능하도록 하는데 있다.The objective of the present invention is to increase the cost of labor by reducing the cost of labor by developing an automatic thickness measuring device of leather in order to pursue the automation of the field of footwear leather through the standardization of the product in preparation for the future e-market place. To improve productivity.
도 1 - 본 발명의 피혁 두께 측정 장치의 전체 구성도.1-Overall configuration diagram of the leather thickness measuring apparatus of the present invention.
도 2 - 본 발명의 피혁 두께 측정 장치의 센서부.Figure 2-Sensor unit of the leather thickness measuring apparatus of the present invention.
도 3 - 본 발명의 피혁 두께 측정 장치의 컨트롤러부.3-controller unit of the leather thickness measurement apparatus of the present invention.
도 4 - 본 발명의 피혁 두께 측정의 원리.4-Principle of leather thickness measurement of the present invention.
도 5 - 본 발명의 피혁 두께 측정 장치의 두께 측정의 흐름도.5-Flow chart of thickness measurement of the leather thickness measurement apparatus of the present invention.
도 6 - 본 발명의 피혁제품 두께 측정용 센서의 교정 장치.Figure 6-Calibration device of the sensor for measuring the thickness of leather products of the present invention.
< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>
1 : 서브모터 2 : 나사부1: submotor 2: screw part
3 : 변위 측정용 콘넥타 4 : 하중 측정용 콘넥타3: connector for displacement measurement 4: connector for load measurement
5 : 변위 측정용스트레인게이지 6 : 하중 측정용 스트레인게이지5: Strain gauge for displacement measurement 6: Strain gauge for load measurement
7 : 하중 측정용 플레이트 8 : 고정플레이트7: Load measuring plate 8: Fixed plate
9 : 베어링 10 : 케이스9: bearing 10: case
11 : 테이퍼 플레이트 12 : 베어링11: tapered plate 12: bearing
13 : 변위측정용바 14 : 베어링13: displacement measurement bar 14: bearing
15 : 로드 16 : 센서부15: rod 16: sensor
17 : 컨트롤러부 18 : 디스플레이부17: controller unit 18: display unit
19 : 전원공급부 20 : 스트레인지 게이지 및 증폭부19: power supply 20: range gauge and amplifier
21 : A/D 컨버터부 22 : 피크 홀더부21: A / D converter section 22: Peak holder section
23 : 마이크로프로세서부 24 : 디스플레이부23 microprocessor 24 display unit
25 : 측정로드 26 : 베이스면25 measuring rod 26 base surface
27 : 블럭게이지27: block gauge
상기의 목적을 달성하기 위한 본 발명은 피혁의 두께를 측정하는 센서부, 센서부를 제어하는 컨트롤러부, 측정된 결과를 표시하기 위한 디스플레이부, 전원을 공급하는 전원장치로 구성되어 있다.The present invention for achieving the above object is composed of a sensor unit for measuring the thickness of the leather, a controller unit for controlling the sensor unit, a display unit for displaying the measured results, a power supply device for supplying power.
이하, 도면을 참고로 하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the drawings.
도 1은 본 발명의 피혁 두께 측정 장치의 센서부의 전체 구성도 이다. 그림에 나타난 것처럼 두께 측정장치 센서부는 서보모터(1), 나사부(2), 변위측정용콘넥타(3), 하중측정용콘넥타(4), .변위측정용스트레인게이지(5), 하중측정용스트레인게이지(6), .하중측정용플레이트(7), 고정플레이트(8), 베어링(9), 케이스(10), 테이퍼 플레이트(11),베어링(12), 변위측정용바(13), 베어링(14), 로드(15)로 이루어져 있다.1 is an overall configuration diagram of a sensor unit of a leather thickness measuring apparatus of the present invention. As shown in the figure, the sensor unit of the thickness measuring device is a servo motor (1), a screw part (2), a displacement measuring connector (3), a load measuring connector (4), a displacement measuring strain gauge (5), and a load measuring strain Gauge (6), load measuring plate (7), fixed plate (8), bearing (9), case (10), taper plate (11), bearing (12), displacement measuring bar (13), bearing ( 14) and a rod 15.
도 1에 나타낸 바와 같이 하중측정용 스트레인 게이지(6)를 이용하여 인장에 대한 측정 및 하중에 의한 두께를 하나의 센서로서 동시에 검출이 가능하도록 구성하였다. 서보 모터(1)에 의해 로드(15)가 하강하고 하강하는 로드(15)는 테이프 플레이트에 의하여 변위 측정용 바를 휘게 만들어 스트레인게이지의 저항 변화를 일으킨다. 또한 로드 끝면이 피혁면에 닿았을 때 하중측정용 플레이트(7)에 정해진 하중 이상이 되면 하중측정용 스트레인 게이지(6)의 저항변화가 발생하고, 이 때 로드의 이동 거리를 계산하여 피혁의 두께를 측정하도록 구성하였다. 센서에 장착된 로드와 베이스면의 거리는 일정하기 때문에 로드의 하강 거리를 환산하면 피혁의 두께가 측정된다.As shown in Fig. 1, the strain gauge 6 for load measurement was used to measure the tension and the thickness due to the load as one sensor. The rod 15 is lowered and lowered by the servo motor 1, and the rod 15 bends the displacement measuring bar by the tape plate, causing a change in the resistance of the strain gauge. In addition, when the rod end surface is in contact with the leather surface, if the load measuring plate 7 exceeds the predetermined load, the resistance change of the load measuring strain gauge 6 occurs, and at this time, the thickness of the leather is calculated by calculating the moving distance of the rod. It was configured to measure. Since the distance between the rod mounted on the sensor and the base surface is constant, the thickness of the leather is measured by converting the descending distance of the rod.
도 2는 본 발명의 전체 구성도를 나타낸 것으로 구성은 크게 센서부 (16), 센서부의 동작을 제어하는 컨트롤러부(17), 측정된 결과를 표시하기 위한 디스플레이부(18), 전원을 공급하는 전원 공급부(19)로 이루어져 있다. 컨트롤러부는 동작 개시 신호가 입력되면 센서부의 로드를 하강 시키게 된다.Figure 2 shows the overall configuration of the present invention, the configuration is largely the sensor unit 16, the controller unit 17 for controlling the operation of the sensor unit, the display unit 18 for displaying the measured results, supplying power It consists of a power supply 19. The controller unit lowers the load of the sensor unit when an operation start signal is input.
도 3은 본 발명의 측정 회로의 구성도를 나타낸 것이다.3 shows a configuration diagram of the measurement circuit of the present invention.
발명된 두께 측정용 센서는 하중 및 로드 이동에 의한 변위 측정용 스트레인 게이지의 저항변화만을 출력하므로 측정 신호가 대단히 미세하다. 따라서 센서의 출력측에 고감도 증폭회로를 첨가해야만 정확한 신호의 검출이 가능하다. 본 발명에서는 미세한 신호의 고감도 증폭을 위하여 2단으로 구성되는 차동증폭회로(20)를 사용하였으며, 스트레인 게이지 및 로드셀의 종류에 따라 이득을 조절할 수 있도록 구성하였다. 증폭된 신호는 A/D 컨버터(21)를 거쳐 이진화되며 피크 홀더(22)를 통과하게 된다. 통과된 신호는 마이크로 프로세서부(23)에서 측정치로 변환되어 디스플레이부(24)에서 표시 된다.The thickness measurement sensor of the invention outputs only the resistance change of the strain gauge for displacement measurement due to load and rod movement, so that the measurement signal is very fine. Therefore, accurate signal detection is possible only by adding a high-sensitivity amplifier circuit to the output side of the sensor. In the present invention, a differential amplifier circuit 20 consisting of two stages is used for high sensitivity amplification of a fine signal, and a gain can be adjusted according to the type of strain gauge and load cell. The amplified signal is binarized via the A / D converter 21 and passes through the peak holder 22. The passed signal is converted into a measurement value in the microprocessor unit 23 and displayed on the display unit 24.
도 4는 피혁 두께 측정의 원리를 나타낸다.4 shows the principle of leather thickness measurement.
피혁의 두께를 측정할 때에는 하강하는 로드에 의해 피혁에 가해지는 하중은 증가하며, 스트레인 게이지의 변위에 의한 저항 값은 감소하게 되는데 이때 하중변화 곡선과 변위변화 곡선이 교차하는 지점을 측정점으로 하여 피혁의 두께를 측정한다.When measuring the thickness of the leather, the load applied to the leather by the falling rod increases, and the resistance value due to the displacement of the strain gauge decreases. At this point, the point where the load change curve and the displacement change curve intersect is measured. Measure the thickness.
도 5는 두께 측정의 흐름도를 나타낸다.5 shows a flowchart of the thickness measurement.
두께 측정장치에서는 외부의 start 버튼에 의한 신호가 들어오면 릴레이 접점의 동작으로 서보 모터가 정회전을 시작하고, 내부 카운터 루틴이 시작되어 두께를 측정한다. 서보 모터가 계속 회전하여 베이스면에 닿게되면 스트레인게이지의 저항변화가 생기게 되는데 이 순간의 값을 피크 홀드하여 A/D컨버터를 통해 마이크로 프로세서에 전송된다. 이때부터 릴레이 접점이 원상태로 되고, 서보 모터는 역회전하여 초기상태로 돌아온다.In the thickness measuring device, when a signal from the external start button comes in, the servo motor starts forward rotation by the operation of the relay contact, and the internal counter routine starts to measure the thickness. If the servo motor keeps rotating and touches the base surface, there is a change in the resistance of the strain gauge, which is peak-holded at this moment and transmitted to the microprocessor through the A / D converter. At this time, the relay contact is returned to its original state, and the servo motor rotates back to the initial state.
도 6은 본 발명의 피혁제품 두께 측정용 센서의 교정 장치이다.Figure 6 is a calibration device for a sensor for measuring the thickness of leather products of the present invention.
블록 게이지(Thickness gage)(27)를 로드(25)와 베이스(26)면에 두고 10회 이상 반복 측정하여 센서의 정밀도를 확인하였다. 도 6의 좌측과 같이 로드와 베이스면 사이를 비워두고 영점을 교정하였으며, 영점 교정에 있어서도 10회 이상 반복하여 측정오차가 최소한으로 되도록 하였다. 이후 도 6의 우측과 같이 블록게이지의 두께(1~5mm)를 조절해가면서 센서의 정밀도 및 신뢰성을 평가하였다. 정실험결과 로드와 베이스면의 간격은 9.70mm를 나타내었으며, 이를 검증하기 위하여 로드와 베이스면을 버니어 켈리퍼스로 측정한 결과와 동일하였다. 영점교정실험은 10회를 반복하여 측정하여 오차의 정도를 파악하였으며, 측정장치의 기계적 구조에 의한 로드 또는 스트레인게이지의 비틀림에 의한 오차 유발을 검토하기 위하여 이러한 실험과정을 10회 반복하고 오차범위를 산출함으로써 측정장치의 신뢰성을 확보하였다. 영점교정 결과는 최대 오차범위 ±0.02mm 정도로 매우 우수한 특성을 나타내었다. 블록 게이지는 0.01mm의 오차를 가지는 블록형의 표준형 게이지로 두께 측정장치의 교정에서 대단히 유용하게 활용되고 있다. 본 발명에서는 1∼5mm의 블록 게이지를 대상으로 두께 측정장치의 정밀도를 확인하였다. 먼저 마이크로미터로 각각의 블록 게이지를 측정한 결과 오차 없이 일정한 두께로 측정되었다.A block gauge (Thickness gage) 27 was placed on the surface of the rod 25 and the base 26 to repeat the measurement 10 times or more to confirm the accuracy of the sensor. As shown in the left side of FIG. 6, the zero point was calibrated between the rod and the base surface, and in the zero point calibration, the measurement error was repeated at least 10 times. Then, as shown in the right side of Figure 6 while adjusting the thickness (1 ~ 5mm) of the block gauge was evaluated the accuracy and reliability of the sensor. The test result showed that the distance between the rod and base surface was 9.70mm, and to verify this, the rod and base surface were measured with vernier calipers. The zero calibration experiment was repeated 10 times to determine the degree of error, and this experiment was repeated 10 times to examine the error caused by the torsion of the rod or strain gauge due to the mechanical structure of the measuring device. By calculating the reliability of the measuring device. The zero calibration result showed a very good characteristic with a maximum error range of ± 0.02mm. The block gauge is a block type standard gauge with an error of 0.01 mm and is very useful for the calibration of thickness measuring devices. In this invention, the precision of the thickness measuring apparatus was confirmed about the block gauge of 1-5 mm. Each block gauge was first measured with a micrometer and the result was a constant thickness without error.
블록 게이지 측정결과Block Gauge Measurement Results
이상과 같이 구성된 본 발명은 수동작업에 의한 피혁 두께 측정의 정확도를 개선하고, 객관화된 피혁 품질기준을 제공할 수 있으며, 자동화로 인한 생산성 향상과 작업 공정을 획기적으로 개선할 수 있다.The present invention configured as described above can improve the accuracy of leather thickness measurement by manual operation, provide an objective leather quality standard, and can significantly improve productivity and work process due to automation.
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| WO2023068844A1 (en) * | 2021-10-21 | 2023-04-27 | 주식회사 엘지에너지솔루션 | Welding pressure control system, welding pressure control method using same, and method for measuring thickness of object to be welded, by using same |
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| KR101637040B1 (en) * | 2009-04-14 | 2016-07-07 | 타이코에이엠피 주식회사 | displacement sensor |
| ITUA20162333A1 (en) * | 2016-04-06 | 2017-10-06 | Camoga Spa | MAPPING AND / OR THICKNESS MEASUREMENT STATION IN LEATHER SHOES AND SPLIT MACHINE EQUIPPED WITH THIS STATION |
| CN112504166B (en) * | 2020-11-13 | 2022-07-26 | 江苏华阳重工股份有限公司 | Precision measuring device for taper hole machining |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5391771A (en) * | 1977-01-22 | 1978-08-11 | Sumitomo Metal Ind | Measuring apparatus for thickness of melting slag layer |
| JPS57194305A (en) * | 1981-05-26 | 1982-11-29 | Nippon Steel Chem Co Ltd | Method and device for controlling thickness measurement of fiber assembly |
| JPH0550309U (en) * | 1991-12-09 | 1993-07-02 | 三洋電機株式会社 | Thickness measuring device |
| JPH10332361A (en) * | 1997-06-03 | 1998-12-18 | Sekisui Chem Co Ltd | Thickness measuring device for plate type product and measuring device provided with rotational roller |
-
2003
- 2003-02-28 KR KR10-2003-0012707A patent/KR100468263B1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5391771A (en) * | 1977-01-22 | 1978-08-11 | Sumitomo Metal Ind | Measuring apparatus for thickness of melting slag layer |
| JPS57194305A (en) * | 1981-05-26 | 1982-11-29 | Nippon Steel Chem Co Ltd | Method and device for controlling thickness measurement of fiber assembly |
| JPH0550309U (en) * | 1991-12-09 | 1993-07-02 | 三洋電機株式会社 | Thickness measuring device |
| JPH10332361A (en) * | 1997-06-03 | 1998-12-18 | Sekisui Chem Co Ltd | Thickness measuring device for plate type product and measuring device provided with rotational roller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023068844A1 (en) * | 2021-10-21 | 2023-04-27 | 주식회사 엘지에너지솔루션 | Welding pressure control system, welding pressure control method using same, and method for measuring thickness of object to be welded, by using same |
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