Before installing and debugging the round knife, we need to adjust the parameters of the round knife die cutting machine equipment, which is a necessary basic operation. Among them, the necessary parameter adjustment mainly includes the following aspects:
In order to ensure the tension control between the front and rear tool rests, it is necessary to adjust the ratio difference of the tool rests. The tool post of the round knife machine is generally displayed as tool post compensation, and the normal adjustment range is between 0.9991 and 0.9999. The adjustment of the modified value cannot be too large, which may cause the material to break.
In order to adjust the tension of the material take-out shaft, general tension control needs to determine the tension according to the material of the material belt. The factors that affect the tension setting mainly include the tensile characteristics of the material and the bearing tension of the waste drawing material.
Generally speaking, the discharge direction of the discharge shaft is opposite to the rotation direction of the discharge shaft, and the feed direction of the feed shaft and the rotation direction of the feed shaft are the same.
After adjusting and completing the above steps, we can enter the tool loading work of the equipment; before installing the knives, we need to compare the knives. Generally speaking, we choose to install the knife from the second seat of the circular knife machine. Generally speaking, we need to move the handle forward to increase the use of the handle. Under normal circumstances, the best effect is to install four knives on the seven-station round knife machine.
At the same time, in the process of installing the knife, you should pay attention to the use of the tool sequence. Since the difference in the same product is very small and there are different batches of tools, the operating instructions for installing the tools must be strictly compared during the installation of the tools. The main details are as follows:
1. In the tool cleaning work before installing the knife, the tool must be degreasing first, then cleaned with thinner or acetone, and then placed on the machine. The purpose of cleaning is mainly to facilitate the subsequent packing of the foam on the gasket knife. This is a necessary link.
2. The addition of the pad knife foam cotton is mainly to prevent the debris left in the groove of the tool after the mold is cut from causing the tool to crack.
3. Install the knives according to the order of use of the knives. During the process of installing the knives, the blades are mainly protected, causing collision and damage to the blades.
The above are the basic issues that need to be paid attention to in the process of installing the knife. After adjusting the tools and parameters, we must carry out the following basic tasks.
Tool fit:
Tool matching refers to the tool debugging setting during the cutting process of multi-tool matching sleeve. Generally speaking, the tool sleeve of the round tool mold is cut more than once, and the outer edge of the tool product will be adjusted in the form of a half cross with the circular cutting; the first knife is the upper half cross knife, and the second knife is the second half cross. If it is a four-knife set cutting, it will be added to the double-knife matching cutting. How to observe the cross cut of the blade to ensure that the contour of the first knife matches the contour of the second knife.
