Design concept of cutter head mechanism of sleeve labeling machine:
1. In order to make the labeling machine speed above 400bpm, the labeling cycle must be completed every 0.15 seconds. The subscript and cutting motors must be started and stopped frequently, and the positioning is accurate.
2. The rotation of the cutting motor drives the cutter head to rotate for one week to complete the cutting operation. The inaccurate positioning of the cutting motor will cause the cutter head to overshoot and eventually cause the cutter head to block the label.
The above two points are the points that must be paid attention to when designing the cutter head: the high-speed operation of the cutter head must consider the number of cutters installed on the cutter head. We design four cutters and six cutters as examples.
For example, the cutter head of four knives:
The four knives are relatively simple, and installation and commissioning are relatively simple. It is connected to four shafts by four bearing mounts. The synchronous wheel is locked on the shaft and then there is a synchronous belt. The four bearing mounts are all mounted on a large plate and are installed equally and diagonally. Of course, the installation distance is determined by the designer according to the size of the product. The timing belt connects the four synchronization wheels together, and the four synchronization wheels must be the same size. Of course, when the four synchronous wheels are rotated to simulate the action, the blade must be installed to simulate, and the blade must not touch the parts on the side.
Here I want to tell you what to pay attention to, that is, the bearing seat and the shaft must be tightly matched, and the general tolerance must not deviate from 0.01mm, otherwise the too loose fit will cause high-speed operation, prone to mechanical failure, inaccurate cutting, etc the reason.