The Güdel Group manufactures high-precision machine components, automated systems and RTIs for use by car and tire manufacturers. The Swiss company recently started providing RFID solutions to help auto tire company production process automation. The program uses an RFID-tagged tray supplied by Schreiner ProTech.
Before vulcanization, the tire is sticky and soft, called a green tire. Stefan Güdel, the company's tire tray project manager, said: "Tackiness complicates the process and because of the softness, the green tire needs to be carefully operated to avoid damage and create quality problems."
The Güdel Group uses RFID technology to automate the tire production process
(Each live tire tray attached to an RFID tag, the bar code printed on the label and Güdel logo)
To solve this problem, Güdel has developed a green tire tray, an RTI article that delivers tires during production. With this tray, employees can remove without damaging the green tire, which can hold up to 900 mm diameter and 30 kg of tire.
To automate the tire production process, the pallet is also equipped with RFID tags. The reader reads the tag data and transmits the data to the manufacturer's PLC. The PLC can then use this information to prevent damage to the tire by controlling the storage time and the variable that can withstand soiling. With the release of this program, Güdel's customers already use 2,000 pallet products for tire production.
In the production process, each green tire is placed in a tray and conveyed by a conveyor belt. Normally, green tires are made of rubber, textile and steel cord. When all the components are assembled, the semifinished product is sent to an AS / RS system to store the green tire prior to curing.
In the production process, different types and sizes of tires are also different. Due to the sensitive nature of green tires, manufacturers often use manual methods to transport tires from the assembly line to the curing process. Likewise, companies can also use automation systems that increase the cleaning and maintenance of tire handling equipment, but such automated systems also increase the risk of tire damage.
Frank Linti, RFID business development manager at Schreiner LogiData, said the tray has a 13.56 MHz Schreiner ProTech high-frequency passive tag of 50mm * 50mm and ISO 15693 compliant. Linti said: "The customer needed a label that could be coded to match the unique identifier of the pallet, which required strong adhesion. The label must be dirt, washable and wear resistant."
In addition, Güdel also printed a barcode on the RFID tag and used it when the tag is abnormal. Linti explains: "We have preprogrammed, printed barcodes and Güdel Logo labels, and to provide protection during the wash we also provide a clearcoat [laminate]."
Due to the presence of dust and steam, the use of RFID tags in tire factories is facing great challenges. These contaminants can affect the ability to scan code. "In the more contaminated environment, we also expect RFID to provide more consistent and stable performance," said Linti. "Barcodes have been shown to be contaminated over time."
The Güdel Group uses RFID technology to automate the tire production process
(Güdel's RFID solution uses Rockwell RFID readers to read pallet tag data)
Güdel's RFID solution uses Rockwell RFID readers to read the pallet tag data and upload it to the PLC and the user's own manufacturing management software.
An RFID reader was installed near the equipment running the AS / RS, the Z-axis carriage near the telescopic fork, and the tray where the tires were placed.
First, the new tire is associated with the pallet tag ID. After the Rockwell Reader reads the label, the user enters information about the tire, including product number, size and type. This information is written in the pallet tag along with the time and date.
Güdel said: "Using RFID technology on the pallet, every tire and its production data will be read."
The company will also analyze the data to confirm the time and the time-consuming process of each tire. These data will also help companies track the frequency of tray usage to optimize the replacement, cleaning or maintenance process.
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