General automation for stretch wrapping machine with packing operator requests

When the plastic bag is clamped the operator pushes a button to start the vacuum-welding sequence. During this cycle the operator checks the vacuum of the previous pallet, see 3.4.2.
当塑料袋夹好后,操作员操作一个按钮开始真空焊接过程。这个环节操作员检查前一个托盘的真空情况,见3.4.2.
• Vacuum cycle begins and when finished the vacuum tube retracts from the plastic bag.
真空过程开始。真空包装结束后真空管从塑料袋上收回。
• Welding bar closes and welding cycle begins.
焊接条闭合,焊接过程开始。
• When sealing cycle is done: clamping bar and welding bar open and VW unit returns to its highest position, making room for the operator.
当封口过程完成,夹杆和焊条打开,焊接机回到最高位置,为操作员提供空间。
• Operator folds plastic bag.
操作员折叠塑料袋。
• Operator adds cardboard sides.
操作员添加纸板
• When done, operator requests next pallet and the cycle restarts. The pallet is transferred to the buffer position for the vacuum check.
以此循环操作。

3.4 Vacuum Check Buffer Position真空检查缓冲区
3.4.1 Build-up布局 
This buffer position is similar to the input and output buffers as described in sections 2.4, 3.2 and 3.6. Additional platform is foreseen.
此缓冲区的位置类似于输入和输出缓冲区如章节2.4,3.2和3.6所述。

3.4.2 Sequence顺序 
Following sequence is done by operator when the automatic vacuum-welding cycle occurs at the vacuum-welding unit.
• Operator checks if the plastic bag still has its vacuum. The check is similar to what is done now: operator checks visual if the plastic bag still sticks to the spools. If not, the vacuum is lost and there must be a puncture somewhere.
• Operator adds top piece cardboard box only when the plastic bag is not punctured.
以下顺序在真空焊接机发生自动真空焊接操作后由操作员完成。
-操作员检查塑料袋是否仍然有真空。检查类似如此:操作员肉眼检查塑料袋师傅哦仍然粘附在线轴上。如果不是,真空已丢失,肯定有一处破损。
-只有在塑料袋没有破损时操作员才添加顶部覆盖纸板。

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