{"id":290,"date":"2021-12-03T03:12:49","date_gmt":"2021-12-03T03:12:49","guid":{"rendered":"https:\/\/www.fuhrung.com\/technical-blog\/?p=290"},"modified":"2021-12-03T03:12:49","modified_gmt":"2021-12-03T03:12:49","slug":"several-factors-of-plastic-processing-equipment-unable-to-open-the-mold","status":"publish","type":"post","link":"https:\/\/www.fuhrung.com\/technical-blog\/several-factors-of-plastic-processing-equipment-unable-to-open-the-mold.html","title":{"rendered":"Several factors of plastic processing equipment unable to open the mold"},"content":{"rendered":"\n

If the plastic processing equipment <\/strong>fails to open the mold during the plasticizing operation, it will inevitably have a lot of bad effects on the plastic products being plasticized. Although it is rare that plastic processing equipment can not open the mold, once it happens, it will cause great trouble. Therefore, in view of this situation, we must solve it quickly to avoid causing more trouble and delaying the work.<\/p>\n\n\n\n

The mold opening force of plastic processing equipment is far less than the mold locking force, so the ultimate reason for mold opening failure is that the mold opening resistance is greater than the mold opening force. In practice, only when the mold cannot be opened can the following conditions be met:<\/p>\n\n\n\n

  1. When the plastic processing equipment leaves the factory, the mechanical origin of the mold locking is not adjusted properly. It’s too forward, causing the mechanism to get stuck. If you can’t open the mold often, you should doubt this aspect and find the manufacturer for adjustment.<\/li><\/ol>\n\n\n\n
    • Or the mechanism is stuck. For the old plastic processing equipment is not the first case, we should doubt this situation. Generally, the mold locking force is adjusted too much. For example, it is adjusted to 1700kg. For example, it is not good to do not open the mold for a long time, system degeneration and other habits. In the final analysis, this problem is the adjustment habit and parameter of technicians. The solution is very troublesome. Remove or loosen the fixing nut on the cross bar.<\/li><\/ul>\n\n\n\n
      • The oil seal of the mold locking oil cylinder is damaged and leaks oil, which causes the actual mold opening pressure to not go up. For this reason, it is useless to look at the pressure gauge. Remove the oil cylinder for inspection.<\/li><\/ul>\n\n\n\n
        • The valve core of the mold opening solenoid valve has poor movement or is stuck, and the valve core is not in place. The solution is to remove the solenoid valve for inspection.<\/li><\/ul>\n\n\n\n
          • See whether the parameter design of plastic processing equipment is appropriate and whether the pressure is not large enough.<\/li><\/ul>\n\n\n\n
            • There may be a problem with the lubrication of the mold locking system. Inspection and maintenance.<\/li><\/ul>\n\n\n\n

              Failure to open the mold is an annoying problem in production. It doesn’t happen often, but it takes a long time to deal with it once. In order to prevent the plastic processing equipment from opening the mold, the following preventive measures shall be taken:<\/p>\n\n\n\n

              1. Correctly calculate the clamping force of plastic processing equipment. The greater the clamping force, the better.<\/p>\n\n\n\n

              2. Never keep the high-voltage mold locking state during shutdown. Remember.<\/p>\n\n\n\n

              3. In case of power failure in the mode locking state, it shall be handled in time. If it is not enough after a long time, the crosshead nut shall be loosened.<\/p>\n\n\n\n

              4. Check the mechanical oil frequently, and do not block the solenoid valve with impurities and iron filings.<\/p>\n\n\n\n

              5. Check the lubrication of the mold locking system. Do not break the oil and cause the guide rod to prick.<\/p>\n\n\n\n

              For the above questions we talked about, did you help you solve the corresponding mysteries? If you have other questions about plastic processing equipment, you are welcome to call us at any time, or you can continue to pay attention to our website, and we will continue to update you.<\/p>\n\n\n\n

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              <\/p>\n","protected":false},"excerpt":{"rendered":"

              If the plastic processi…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[25],"class_list":["post-290","post","type-post","status-publish","format-standard","hentry","category-technical","tag-plastic-processing-equipment"],"_links":{"self":[{"href":"https:\/\/www.fuhrung.com\/technical-blog\/wp-json\/wp\/v2\/posts\/290","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fuhrung.com\/technical-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fuhrung.com\/technical-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fuhrung.com\/technical-blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fuhrung.com\/technical-blog\/wp-json\/wp\/v2\/comments?post=290"}],"version-history":[{"count":1,"href":"https:\/\/www.fuhrung.com\/technical-blog\/wp-json\/wp\/v2\/posts\/290\/revisions"}],"predecessor-version":[{"id":292,"href":"https:\/\/www.fuhrung.com\/technical-blog\/wp-json\/wp\/v2\/posts\/290\/revisions\/292"}],"wp:attachment":[{"href":"https:\/\/www.fuhrung.com\/technical-blog\/wp-json\/wp\/v2\/media?parent=290"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fuhrung.com\/technical-blog\/wp-json\/wp\/v2\/categories?post=290"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fuhrung.com\/technical-blog\/wp-json\/wp\/v2\/tags?post=290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}