GDX500软盒包装机组负压接烟板机构的设计

Design of vacuum cigarette receiver mechanism for GDX500 soft packer

为解决GDX500软盒包装机组小盒成型过程中因商标纸定位不精确而导致机组停机和不合格品率高等问题,设计了一种负压接烟板机构。该机构由分气板、中空连杆以及空腔接烟板等组成,通过底座安装于三号轮齿轮箱上;分气板在中空连杆带动下随空腔接烟板做往复运动时,分气板上的进气孔与底座上弧形分气槽交替重合和错位,从而实现气路的通断控制;基于机构运动分析,计算得到弧形分气槽的角度为48.8°;通过测定不同负压压强下商标纸偏移率,确定最佳负压压强为0.04 MPa。以玉溪卷烟厂生产的“玉溪(软)”牌卷烟为对象进行测试,结果表明:应用负压接烟板机构后,商标纸或烟盒阻塞机组次数由10.4次/d减少至1.1次/d,机组运行效率提高5.42百分点,不合格率降低0.12百分点。该技术可为提高包装机组生产效率和小盒包装质量提供支持。

To avoid machine failures and defective cigarette packets caused by inaccurate label positioning during the cigarette packet forming process of GDX500 soft packer,a vacuum cigarette receiver mechanism was designed.The mechanism consisted of a manifold block,a hollow linking rod,and a vacuum chamber cigarette receiver.The mechanism was installed on the gearbox of wheel No.3 by means of a seat.Driven by the linking rod,the manifold block moved back and forth along with the cigarette receiver,and the air inlet holes on the manifold block connected to and disconnected from the arc-shaped groove on the seat alternately,thereby achieving on-off control of the air circuit.The angle of the arc-shaped groove was 48.8°by the motion analysis of the mechanism.By the experiment of the position deviation of the label versus vacuum pressure,the optimal vacuum pressure was 0.04 MPa.A test was conducted on cigarette brand“Yuxi(Soft)”in Yuxi Cigarette Factory.The results showed that the frequency of machine shutdown due to label or cigarette packet jam decreased from 10.4 times/d to 1.1 times/d.The efficiency of the GDX500 soft packer increased by 5.42 percentage points,while the unqualified rate of cigarette packets decreased by 0.12 percentage points.This technology provides support for improving the efficiency of cigarette packers and the packaging quality of cigarette packets.