本文選題：自動包裝生產(chǎn)線　切入點：開口部分　出處：《天津大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：自動包裝生產(chǎn)線作為現(xiàn)代包裝工業(yè)必不可少的關(guān)鍵設(shè)備。它提高了商品包裝的效率，降低了不合格包裝的比例，社會效益和經(jīng)濟效益極其可觀，因而在自動包裝領(lǐng)域中得到廣泛的應(yīng)用。但在實際生產(chǎn)中，自動包裝生產(chǎn)線常常出現(xiàn)裝料過程中產(chǎn)品灑出和不合格產(chǎn)品不能完全檢出等問題。針對上述問題，在自動包裝生產(chǎn)線開口部分程序和重量及金屬檢測部分程序中，分別給出改進方案。 經(jīng)過觀察與實驗，發(fā)現(xiàn)產(chǎn)品灑出問題主要是自動包裝生產(chǎn)線拉開袋口工序袋夾拉開兩側(cè)與真空吸盤拉開另一側(cè)不同步造成的。在袋口未拉開到規(guī)定大小時，即開始打料，造成產(chǎn)品灑出。提出在開口部分程序中虛擬中間繼電器前加入一個檢測袋口的輸入點，以檢測袋口是否已拉開到規(guī)定大小，確保袋夾與真空吸盤的控制同步性。不合格產(chǎn)品不能完全檢出的問題是自動包裝生產(chǎn)線中金屬檢出機與剔除機配合失當(dāng)造成的。對重量及金屬檢測部分的程序進行了改進，加入延時定時器觸點，代替原有的常規(guī)輸入點，給含有金屬異物的不合格產(chǎn)品報警一個延時，避免了金屬檢出機報警時，合格產(chǎn)品由于未通過剔除機被誤剔除，不合格產(chǎn)品則通過的問題。 將上述改進應(yīng)用于糊樹脂第二車間的自動包裝生產(chǎn)線中，進行多組對比實驗。由實驗結(jié)果可知，產(chǎn)品灑出情況大為減少，裝袋合格率大幅提高，誤剔除合格產(chǎn)品的現(xiàn)象基本不再出現(xiàn)，改進方案達到預(yù)期效果，能夠取得一定的經(jīng)濟效益，，滿足實際生產(chǎn)的需要。
[Abstract]:Automatic packaging production line is an indispensable key equipment in modern packaging industry. It improves the efficiency of commodity packaging, reduces the proportion of unqualified packaging, and makes great social and economic benefits. Therefore, it has been widely used in the field of automatic packaging. However, in practice, the automatic packaging production line often has problems such as product sprinkling during the loading process and the unqualified products can not be completely detected, etc. In view of the above problems, In the program of opening part, weight and metal detection of automatic packaging production line, the improvement scheme is given respectively. After observation and experiment, it is found that the problem of product spilling is mainly caused by the non-synchronization between the two sides of the bag clamps and the vacuum suckers in the process of opening the bag mouth in the automatic packaging production line. When the bag mouth is not opened to the specified size, it begins to press the material. It is proposed to add an input point in front of the virtual intermediate relay in the open part program to check whether the bag mouth has been opened to the specified size. The problem that the unqualified product can not be completely detected is caused by the improper cooperation between the metal detector and the culling machine in the automatic packaging production line. The program of the weight and metal detection part has been improved. The delay timer contact is added to replace the original conventional input point, and a delay is given to the unqualified product containing the metal foreign body. When the metal detector alarm is avoided, the qualified product is mistakenly removed because it has not passed the culling machine. Unqualified products pass the problem. The above improvements have been applied to the automatic packaging production line of the second workshop of paste resin, and many groups of comparative experiments have been carried out. From the results of the experiments, we can see that the situation of product spilling has been greatly reduced, and the qualified rate of bagging has been greatly increased. The phenomenon of eliminating the qualified products by mistake is no longer present, and the improvement scheme can achieve the expected effect, which can obtain certain economic benefits and meet the needs of actual production.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TB48

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