There are eight basic steps to reducing changeover using the SMED system which can be implemented as<\/p>\n\n\n\n
Develop and complete the external set-up checklist.<\/strong><\/p>\n\n\n\n Create a list of molds\/dies, tools, fixtures, materials and gauges.<\/p>\n\n\n\n Develop and complete set-up reduction observation forms.<\/strong><\/p>\n\n\n\n It includes the following steps<\/p>\n\n\n\n The P, R, L and A activities are<\/em><\/p>\n\n\n\n P \u2013 Preparation activities – This is the preparation stage for changeover (or set-up).<\/p>\n\n\n\n R \u2013 Replacement activities<\/strong> \u2013 It includes mounting, replacing, securing and removing of dies, tooling, blades, etc. after completion of the process. The attachment of parts and tools needed to perform the next job<\/p>\n\n\n\n L \u2013 Locating activities \u2013<\/strong> It refers to the measurements, settings and calibrations that must be performed to successfully complete a process. It involves performing the various activities like centering, aligning, dimensioning and adjusting temperature and pressure which places items in their proper position:<\/p>\n\n\n\n A – Adjusting activities<\/strong> \u2013 They are actions repeated in order to attain the correct machine setting to produce an acceptable part. It is the most difficult aspect of the changeover process and its frequency depends on the pre-planning and accuracy of previous steps (P, R and L)<\/p>\n\n\n\n Convert internal to external set-up<\/strong><\/p>\n\n\n\n The third step is the most important step. Here company involves subject matter experts and brainstorm on the following<\/p>\n\n\n\n Standardize<\/strong><\/p>\n\n\n\n In it, the size changeover tools are examined and replaced with standard sizes as with aging of machines, their maintenance deteriorates, as they are often fitted with non-standard parts (sometimes due to non-availability of the original parts). In this step, company remedies the situation by<\/p>\n\n\n\n Standardization requires uniformity necessary for set-up operations like<\/p>\n\n\n\n Use clamps and \u201cone-touch\u201d fasteners<\/p>\n\n\n\n It involves<\/em><\/p>\n\n\n\n Use intermediate jigs<\/p>\n\n\n\n As intermediate jigs reduce external and internal set-up time, they can be used on large machines with multiple dies\/guides\/molds to reduce clamping and positioning time<\/p>\n\n\n\n Adopt parallel operations<\/p>\n\n\n\n Company should clearly define each and every person\u2019s role and responsibility during the changeover\/set-up operation. It should be synchronized such that not even a second is wasted. This step benefits as<\/p>\n\n\n\n Eliminate adjustments<\/p>\n\n\n\n Company should clearly differentiate between settings and adjustments. Settings occur when the position of a limit switch is changed. Adjustment occurs when the limit switch is tested and repeatedly adjusted at a new position. Adjustments can be eliminated if a gauge is used to precisely determine the correct position of the limit switch.<\/p>\n","protected":false},"excerpt":{"rendered":" There are eight basic steps to reducing changeover using the SMED system which can be implemented as Develop and complete the external set-up checklist. Create a list of molds\/dies, tools, fixtures, materials and gauges. Develop and complete set-up reduction observation forms. It includes the following steps Observe the whole process (videotape if necessary). Identify and…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-106057","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\n