Folding blister packaging box is usually folded to the back, usually about 15MM-7MM. Too long or too short hemming position will not only affect the normal production, but also the effect is not perfect.

The hem length of 7MM-15MM has been subjected to numerous practical applications. This is not a concept value, and it has been tested after a long period of actual use. In some small-sized blister packaging boxes, the distance between the hem position and the product distance is restricted. Under normal circumstances, the edge of the blister box folded to the back must not exceed the place where the goods are placed. There are two considerations: First, this will block the place where the blister packaging box is raised to place the product, and it will increase man-hours in the packaging process. The second factor is also not conducive to the packaging process of blister packaging box manufacturers. The blister is usually stacked in a carton and then sealed. If the folded edge covers the concave and convex area, the two pieces of blister packaging box cannot be overlapped. In this case, the space for blister packaging box will be greatly increased, which directly increases the production cost of the blister packaging box .

In addition to the two points mentioned above, the size of the folded edge of the blister packaging box is also reflected in the quality. The size range of 7 to 15MM is relatively easy to produce a fitted hemming position. Outside this range, the effect of the fit of the hemming will be worse. The effect beyond this size range is less ideal. There is no good way to solve this problem on the artificial hemming equipment. In many blister packaging box manufacturers, there may be some own tips to improve, but these are not consciously promoted because of the secrets of production; therefore, the fundamental solution is to start from the equipment. It has been more than ten years since the current folding machine has been in circulation. In the past ten years or more, new discoveries or developments have been made every year in the technology industry; however, since the introduction of the blister packaging box folding machine, until now, the overall structure and the principle of folding have basically remained unchanged. With the development of the blister packaging box industry, looking back, although the manual folding machine has already met most of the production needs, the entire plastic packaging box industry in Shenzhen plastic box factory has a variety of needs to solve and meet The needs of this part are the issues that the blister packaging box equipment enterprises need to seriously consider.