Earing measuring instrument Model 126 Plus

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The Ear Measuring Instrument, Model 126 Plus, consists of a turntable and a vertical gauge head with a roller. By a jaw chuck, the cup is centered and fixed. The gauge head can be positioned to different cups heights and diameters.
Once the measurement process has started, the test roller, activated pneumatically, lowers onto the sample and the turntable rotates once. During this rotation, the measuring head records the shape of the cup’s edge, known as the earring.


Purpose and Application
The Ear Measuring Instrument, Model 126 Plus, is designed for the axial measurement of deep-drawn cups and raw cans. Typical standards are DIN EN 1669 and ISO 11531.


Test principle
The operator starts the measurement process by PC or directly at the device. The measuring unit lowers towards the sample and detects the edge of the cup during one rotation of the rotary table. After the measurement has been completed, the measuring unit returns to its home position, allowing the sample to be changed quickly.
The operator reads the measured values from the screen and can archive them as a file. Output formats are .pdf, .txt and .csv. The .txt and .csv files can be imported into MS Excel. The measurement protocol will show the following results (among others):

• He_(mm) Average Earing height
• He,max(mm) Maximum Earing height
• H_(mm) Average Cup height
• Z(%)Average Earing %
• Number of earings
• Date, lot, operator…

Sheet metal anisotropy and deep drawing parameters will result in different earring values.
The detailed determination of parameters discloses tool wear and the quality of the deep-drawing material used. Due to its flexible concept this instrument is also applicable for all similar tasks.
Operation software is included. A PC is to be supplied by the customer.


Fully automated ear measurement possible – Model 126 Plus Auto
Fully automated ear measurement with the Model 126 Plus Auto enables the measurement of up to 1500 cups/day. The system combines proven measuring technology and software evaluation of the Model 126 Plus with new unique selling points such as camera-based rolling direction recognition.
With this system, the operator loads inpidual trays with up to 42 inpidual test cups. The changing magazine can hold up to 5 of these trays and can be loaded while the measuring operation is running. The control unit processes the measuring tasks independently and transmits the results to the users database.