One of the improvements Bush Brothers,
The refurbished 1985 vintage, 48-head glue labeler was outfitted in September 2006 with a new PatternJet™ Labeling System glue application system fromNordson Corp.（www.nordson.com). The PatternJet applies adhesive to labels for five sizes of food cans—211x300, 300x407, 307x306, 307x 409, and 307x512—at rates to 1100 cans/min.
One of the key benefits to the PatternJet is a reduction in adhesive usage by 20 to 30%, according to Bush Brothers maintenance manager Steve Chowanec.
The PatternJet system replaced a wheel-pot adhesive system, which has been a standard method used in plants for more than 30 years. It comprises a hot melt adhesive, heated in a reservoir, that’s pumped to a roll that applies the adhesive directly onto the can wall and lap area of the label to close the seam. It is an open-air, direct-contact system that prompted concerns associated with the high temperatures—the adhesive is heated to 300º F—and fumes around the operator, according to Chowanec.
相比之下，大约两年前推出的Patternjet-介绍 - 使用具有喷涂粘合剂的封闭系统。
该系统使用两个Patternjet Guns。第一个Patternjet涂抹器称为拾取枪，将粘合剂施加到罐中，该罐子在其中一个标签的48主轴上旋转。安装在支架上，它包括六个模块，每个模块都有喷嘴。无罐，无应用传感器确认在将“迷你旋流”图案施加到罐壁之前的存在。
The can is moved toward the label stack where it picks up a label. And that’s where a second PatternJet gun, the lap seam gun, is mounted. It applies adhesive to the label’s cross seam that seals the label. The lap gun has three modules and a “slot” nozzle sized for the largest container. The slot nozzle produces a full “ribbon” pattern of adhesive. That results in a label that looks exactly the same as before, which was what Bush Brothers wanted. The labels are made of paper or metallized paper.
之前，将粘合剂的短条纹宽约为半英寸宽，长度长，施加到罐和标签上。旧的设置还有一条用于直接将粘合剂直接转移到罐头和标签上的滚筒，以及刮刀，所有需要定期更换的磨损部件，Chowanec指出。所有这些组件都需要定期清洁。
Simplified clean-up
一个问题的操作面临之前是每月清理胶水盆。“我们已经消除了每月八小时的胶水盆所需的清理，”他说。“这也意味着贴标者需要在那个时间下降。”
现在，操作员在一周结束时拆下喷嘴，并且可以在第二组运行时清洁它。只需15分钟即可完成15分钟，并在离线上清洁未使用的集合。
Changeovers are much simpler than before. Chowanec says the plant makes about one changeover per shift at the two-shift operation. This is done via a recipe call-up on the labeler’s new touchscreen panel that directs the preset number of modules that will be used, dependent on can size. That can require anywhere from three to six modules, according to Chowanec. Some physical adjustment of a nozzle may also be needed, he adds, done easily using a dial adjustment. The operator panel interface permits adjusting when and for how long the jets apply the hot melt.
The company tried to use its existing glue, but it was not a good match, according to Chowanec. A switch to another formulation from Bush Brothers’ adhesive supplier worked. The type 34-396C hot melt from the粘合剂div。国家淀粉和化学品（www.nationaladh.com) comes in block form. An operator supplies two or three blocks of hot melt into the reservoir every 15-20 minutes. This is a better process than before, when operators scooped in smaller forms of adhesive into two reservoirs, Chowanec says.
“该系统使我们精确控制了粘合剂 - 我们在申请它以及我们申请的地方以及我们申请多少时，总结了Chowanec。
