DE9113784U1 - Tensile strength measuring device - Google Patents
Tensile strength measuring deviceInfo
- Publication number
- DE9113784U1 DE9113784U1 DE9113784U DE9113784U DE9113784U1 DE 9113784 U1 DE9113784 U1 DE 9113784U1 DE 9113784 U DE9113784 U DE 9113784U DE 9113784 U DE9113784 U DE 9113784U DE 9113784 U1 DE9113784 U1 DE 9113784U1
- Authority
- DE
- Germany
- Prior art keywords
- force
- sample
- lever
- tensile strength
- strength measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000011888 foil Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000009988 textile finishing Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/34—Paper
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/36—Textiles
- G01N33/367—Fabric or woven textiles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Textile Engineering (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
Ulrich Schulze HeulingUlrich Schulze Howling
TlLLMANNSTR.5TlLLMANNSTR.5
4410 Warendorf 14410 Warendorf 1
ReissfestigkeitsmessgerätTensile strength measuring device
Die Neuerung betrifft ein Prüfgerät zur Messung der Reißfestigkeit von Flächengebilden wie z.B Geweben, Gewirken, Vliesstoffen, Folien oder ähnlichem.The innovation concerns a testing device for measuring the tear resistance of flat structures such as woven fabrics, knitted fabrics, nonwovens, films or similar.
In der Textilveredelung treten bei verschiedenen Prozessen (z.B. Schmirgeln, Hochveredeln )Reißfestigkeitsminderungen auf.Die verbleibenden Reißfestigkeiten müssen -je nach Artikel- in einem festgelegten Toleranzbereich liegen. Ein Unterschreiten der geforderten Mindestreißfestigkeit bedeutet Ausschuß und damit Rentabilitätseinbuße.In textile finishing, tear strength reductions occur during various processes (e.g. sanding, high-finishing). The remaining tear strengths must - depending on the article - be within a specified tolerance range. Falling below the required minimum tear strength means rejects and thus a loss of profitability.
Zur Zeit werden die Reißfestigkeiten im Labor geprüft. Von der Probennahme über die Prüfung bis zur Rückkoppelung an der Maschine liegen oft beträchtliche Zeiten. Die Ware läuft während dieser Zeit weiter und damit erhöht sich die eventuell geschädigte Meterzahl. Besonders hoch ist der Anteil geschädigter Ware in Zeiten nicht besetzter Labors, vorwiegend in Nachtschichten. Eine Grobprüfung, die sogenannte Daumenprobe, ist ab einem gewissen Anteil synthetischer Fasern nicht mehr durchführbar. At present, the tear strengths are tested in the laboratory. There is often a considerable amount of time between taking the sample and the test and the feedback to the machine. The goods continue to run during this time and the number of meters that may be damaged increases. The proportion of damaged goods is particularly high when the laboratory is not occupied, mainly during night shifts. A rough test, the so-called thumb test, is no longer possible if a certain proportion of synthetic fibers is present.
Hier setzt die Neuerung ein, deren Aufgabe es ist, ein Prüfgerät zur Verfügung zu stellen, das einfach zu bedienen und preisgünstig ist und vor Ort ausreichend genaue, reproduzierbare Werte liefert; ein Gerät, das in den Arbeitsplatz des Maschinenführers integriert werden kann.This is where the innovation comes in, the purpose of which is to provide a testing device that is easy to use and inexpensive and delivers sufficiently accurate, reproducible values on site; a device that can be integrated into the machine operator's workplace.
Seite - 2 - ReissfestigkeitsmeßgerätPage - 2 - Tensile strength tester
Der Maschinenführer wird dadurch in die Lage versetzt, eine Probe bereits aus den ersten Laufmetern einer Partie zu entnehmen und unmittelbar vor Ort auf ihre Reißfestigkeit zu prüfen, unabhängig von langen Wegen und vom Bedienungspersonal großer Laborgeräte. Maschineneinstellungen können dann schnell korrigiert werden, Verluste werden dadurch drastisch verringert.This enables the machine operator to take a sample from the first few meters of a batch and test its tear resistance immediately on site, independent of long distances and the operating personnel of large laboratory equipment. Machine settings can then be corrected quickly, thereby drastically reducing losses.
Die Genauigkeit des Gerätes muß ausreichen für eine Qualitätssicherung. Für Statistiken, zusätzliche Prüfungen und regelmäßige Überwachung können zusätzlich die bisher bekannten Laborgeräte herangezogen werden.The accuracy of the device must be sufficient for quality assurance. For statistics, additional tests and regular monitoring, the laboratory equipment already known can also be used.
Zur Lösung dieser Aufgabe wird das Gerät mechanisch so praktisch wie möglich gestaltet, jedoch mit den besten zur Zeit bekannten Meßtechniken ausgerüstet. Dies wird nachfolgend anhand der beigefügten Zeichnung erläutert:To solve this problem, the device is designed to be as mechanically practical as possible, but equipped with the best measuring techniques currently known. This is explained below using the attached drawing:
Die zu messende Probe vorbestimmter Breite wird in einem am Hebel 1 befestigten oberen Probenhalter 2 durch einen kniehebelbetätigten Schubriegel 3 eingeklemmt und durch den unteren Probenhalter 4 geführt. Die überstehende Länge 6 der Materialprobe 5 hängt dann nach unten durch. Im unteren Probenhalter 4 wird die Materialprobe durch einen weiteren Schubriegel 3 gehalten.The sample to be measured, of a predetermined width, is clamped in an upper sample holder 2 attached to the lever 1 by a toggle-operated sliding bolt 3 and guided through the lower sample holder 4. The protruding length 6 of the material sample 5 then sags downwards. The material sample is held in the lower sample holder 4 by another sliding bolt 3.
Der Hebel 1 wird durch eine Feder 7 in Ruhelage gehalten. Die Länge der Probe kann mittels der Einstellschraube 8 durch Verändern der Ruhelage des Hebels 1 reguliert werden.The lever 1 is held in the rest position by a spring 7. The length of the sample can be regulated by changing the rest position of the lever 1 using the adjusting screw 8.
Die zum Zerreißen der Probe notwendige Kraft wird durch Muskelkraft der Bedienungsperson ausgeübt und über den langen Hebel 1 verstärkt. Sie wirkt über den Hebel 1, den oberen Probenhalter 2 und die Probe 5 auf den unteren Probenhalter 4. Dieser ist über zwei Distanzstücke - 9 und 10 - mit einer Meßbrücke 11 verschraubt. Die aufgewandte Kraft führt zur Verformung der Messbrücke. Diese Verformung wird über Dehnungs- Meßstreifen elektrisch gemessen. Der Wert wird nur steigend auf der Anzeige 12 angezeigt. Nach Zerreißen der Probe sinkt der Grad der Verformung, die Anzeige zeigt aber den höchsten gemessenen Wert, da nur steigend angezeigt wird. Erst durch Betätigen der Rückstellungstaste 13 wird er gelöscht.The force required to tear the sample is exerted by the operator's muscle power and amplified by the long lever 1. It acts via the lever 1, the upper sample holder 2 and the sample 5 on the lower sample holder 4. This is screwed to a measuring bridge 11 via two spacers - 9 and 10. The force applied leads to the deformation of the measuring bridge. This deformation is measured electrically using strain gauges. The value is only shown increasing on the display 12. After the sample is torn, the degree of deformation decreases, but the display shows the highest measured value, since it is only shown increasing. It is only deleted by pressing the reset button 13.
Seite -3- ReissfestigkeitsmeßgerätPage -3- Tensile strength tester
Um weitgehende Unempfindlichkeit zu erreichen, wird die Messbrücke vor Überlastung geschützt, indem die Verbindung zwischen Meßbrücke 11 und unterem Probenhalter 4 durch die Grundplatte 14 geführt wird. Unterer Probenhalter 4 einerseits und Distanzstück 10 andererseits begrenzen so den Weg der Messbrücke.In order to achieve a high degree of insensitivity, the measuring bridge is protected against overloading by the connection between the measuring bridge 11 and the lower sample holder 4 being guided through the base plate 14. The lower sample holder 4 on the one hand and the spacer 10 on the other hand thus limit the path of the measuring bridge.
Der Hebel 1 wird durch die Feder 7 in Ruhestellung gehalten. Anstelle der hier gezeigten Gasdruckfeder kann auch eine Federdraht- Drehfeder eingesetzt werden. Durch Kombination mit einem Stoßdämpfer 15 kann die geringe Dämpf er wirkung der Gasdruckfeder verstärkt und die Geschwindigkeit des Hebels begrenzt werden. Dies verhindert eine zu schnelle Hebelbewegung nach Zerreißen der Probe und erhöht dadurch die Sicherheit der Bedienungsperson.The lever 1 is held in the rest position by the spring 7. Instead of the gas pressure spring shown here, a spring wire torsion spring can also be used. By combining it with a shock absorber 15, the slight damping effect of the gas pressure spring can be increased and the speed of the lever limited. This prevents the lever from moving too quickly after the sample has been torn and thus increases the safety of the operator.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9113784U DE9113784U1 (en) | 1991-11-06 | 1991-11-06 | Tensile strength measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9113784U DE9113784U1 (en) | 1991-11-06 | 1991-11-06 | Tensile strength measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE9113784U1 true DE9113784U1 (en) | 1993-03-11 |
Family
ID=6872971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE9113784U Expired - Lifetime DE9113784U1 (en) | 1991-11-06 | 1991-11-06 | Tensile strength measuring device |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE9113784U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107543757A (en) * | 2017-08-28 | 2018-01-05 | 安徽奥丰汽车配件有限公司 | A kind of tensile testing machine for ball arm |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2030640A (en) * | 1929-09-28 | 1936-02-11 | Union Carbide & Carbon Corp | Portable testing machine |
| DE1677478U (en) * | 1954-03-26 | 1954-06-03 | Emil Jooss | Dismountable shredding machine. |
| DD99003A5 (en) * | 1972-10-12 | 1973-07-12 | ||
| US3868849A (en) * | 1973-08-16 | 1975-03-04 | United Artists Music & Records | Ductility tester |
| GB2029971A (en) * | 1978-05-25 | 1980-03-26 | Cotton Silk & Man Made Fibres | Improvements in or relating to the testing of woven fabric |
| US4279164A (en) * | 1980-01-28 | 1981-07-21 | The United States Of America As Represented By The Secretary Of The Air Force | Metallurgical specimen tester |
| US4679443A (en) * | 1986-07-24 | 1987-07-14 | The Goodyear Tire & Rubber Company | Belt testing device |
-
1991
- 1991-11-06 DE DE9113784U patent/DE9113784U1/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2030640A (en) * | 1929-09-28 | 1936-02-11 | Union Carbide & Carbon Corp | Portable testing machine |
| DE1677478U (en) * | 1954-03-26 | 1954-06-03 | Emil Jooss | Dismountable shredding machine. |
| DD99003A5 (en) * | 1972-10-12 | 1973-07-12 | ||
| US3868849A (en) * | 1973-08-16 | 1975-03-04 | United Artists Music & Records | Ductility tester |
| GB2029971A (en) * | 1978-05-25 | 1980-03-26 | Cotton Silk & Man Made Fibres | Improvements in or relating to the testing of woven fabric |
| US4279164A (en) * | 1980-01-28 | 1981-07-21 | The United States Of America As Represented By The Secretary Of The Air Force | Metallurgical specimen tester |
| US4679443A (en) * | 1986-07-24 | 1987-07-14 | The Goodyear Tire & Rubber Company | Belt testing device |
Non-Patent Citations (1)
| Title |
|---|
| JP 2-71132 A. In: Patents Abstracts of Japan, P-1056, June 5, 1990, Vol.14,No.260 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107543757A (en) * | 2017-08-28 | 2018-01-05 | 安徽奥丰汽车配件有限公司 | A kind of tensile testing machine for ball arm |
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