Vision Error Proofing

Our vision error proofing system is designed to detect the colored uniformity markings on tire sidewall or tread, but can be used for many other vision applications. The simple “Quick Teach” screens allow for easy setup of new products including rims from 14 to 24 inches and tire ODs to 36 inches. The vision system compares camera images to stored data base images of rim patterns, size, flanges (or flangeless) and color differences on face of rim. Vision cycle times under 2 seconds(depending on product complexity) with a proven accuracy of 99.99%.
We currently have 18 units in full production.

The 8300 series vision system compares tires, rims and tire assemblies for the purpose of comparing results to the plant broadcast as error proofing. Specific identifiable factors of the product such as rim pattern, color, diameter, flange/flangeless are used and associated to the pre-taught product library in the PC. The BEP Vision System can also be used for sending information to downstream equipment. In operation, a single tire/rim assembly is conveyed into the identification station, stopped and centered. A signal for part present and centering complete triggers the vision computer to acquire an image and compares the image to a previously taught system database of stored images. With a compared match, the assembly proceeds without incident. However, in the event of a mismatch condition, the system will provide a signal/interface triggering a visual/audio fault. The operator will then manually inspect the assembly and reset the error or manually input the correct assembly code and reset the fault. A signal from the vision PC will indicate that the imaging process or fault reset is complete and ready for the next assembly. Each assembly can have a separate PC entry code or can be based on a specific item such as size and associated offset.

This system has the capability to read color dropouts of rims, patterns, diameter, aluminum/chrome and painted, tire range not exceeding overall O.D. 34" x width 10". Identical tire tread patterns will be identified by part size, i.e. 15", 16" and/or a combination of other identifiable indicators such as speed rating stripes and tire sidewall markings. As with any vision system, there must be sufficient identifiable and consistent product/markings. Product and/or high quality digital photos must be provided so we can analyze on our in-house station and confirm.

Tire & Rim Matcher

The vision based Tire and Rim Matching Station, uses one stationary camera to view the full face of the Tire and Rim Assembly. It is an "Intelligent" system that is more forgiving of improper marks than other systems that identify the first fluorescent mark it sees. This method eliminates the problem of mismatching when multiple marks are present, which is difficult to correct after the tire is inflated.

The camera lighting uses readily available, economical fluorescent lights rather than the expensive special lamps, with very low life, used in typical scanner systems. This system separates the two functions -- (A) Mark identification and (B) Rim orientation, giving more time to each, ensuring the production rate can be met, and increasing capability to meet required tolerances. It also simplifies troubleshooting and maintenance.

The positioning or (matching) station aligns the tire and rim high / low radial runout points (as indicated by the produce manufacturer) by securing the tire, and rotating the rim. Control of rotation is performed by an D.C. variable frequency drive, directed through the PC, using the collected information from the vision station. This system has a simple design, with few components to maintain, and very few moving parts.