Die cutting machine operation, should pay attention to the law of the seven major problems


Die-cutting industry personnel may know, composed of four major parts of the die-cutting is, die-cutting machine, die-cutting die, die-cutting materials and die-cutting process, die-cutting machine is an important part of the machine, then I want to give you an introduction to the use of die-cutting machine, should pay attention to what problems in the process:.
1,Flat pressure die cutting machine more than equal indexing cam mechanism, the shape of the cam is reasonable is a key. The tension of the chain should be moderate, too tight, too loose will affect the accuracy of the die cutting. Flat pressure die cutting machine paper feeding teeth are now mostly solid, but still easy to deform in high-speed movement, large inertia when the emergency stop. A good row of teeth with high hardness and light weight, the angle and the size of the pressure is moderate.

2, the current main drive of the die-cutting machine is driven by the motor worm and worm gear. Worm gear is mostly helical teeth, it should be noted that, when the worm wheel and worm gear in the indexing circle meshing, wheel teeth and wheel teeth between the side gap size is appropriate. Side clearance is too large, worm gear transmission is not smooth; side clearance is too small, is not conducive to the flow of lubricant. There is also an unreasonable pressure angle will affect the smoothness of the transmission.

3, these three items are the basic components of the die-cutting, their good or bad directly related to the quality of die-cutting. Plate requires uniform density, light weight, high hardness, good flexibility, easy to process, flat, solid, knife line embedded in a stable and can be replaced many times. The knife should be sharp, the height error of the whole knife and the bend of the big knife is small. The hardness of the rubber strip should be moderate, not squeezing the knife edge, and not insufficient rebound. High-speed set punch die cutting machine

4,At present, the commonly used method is continuous paper feeding, that is, the front sheet and the back sheet always have a part of the overlap together. This way is smooth and fast, but the rapid movement of the paper on the positioning of the front gauge produces a great impact, the paper curled or bouncing after the force, resulting in positioning inaccuracies. Ideal die-cutting machine should ensure that the die-cutting speed at the same time, the paper in the paper conveyor table movement speed as low as possible.

5, by the domestic machinery manufacturing technology level limitations, die-cutting machine, many parts processing rough. Such as the intermittent mechanism and the main drive system and the chain between the matching and manufacturing accuracy directly affects the speed of the machine, if the assembly accuracy is poor will affect the die-cutting accuracy and cause noise. Another example is the elbow lever pressure mechanism and the gap between the moving platform to determine the unreasonable, will cause vibration, affecting the speed and accuracy.

6,The guide rail plays a role in positioning and controlling the direction of the chain. The thickness of the guide rail should be suitable and can be embedded in the chain piece. The distance between the upper and lower rails must ensure that the chain passes smoothly, too small to increase transmission resistance; too large chain is easy to jump. The track of the guide rail and the length of the chain also have a certain impact on the performance of the machine. High-speed punching and die-cutting machine

7, die cutting machine is the most important device is the pressure mechanism. Currently the most common double elbow lever mechanism, the crank rotates one week, it makes the movable platform can reach the highest limit position twice. In order to ensure the quality of die-cutting, pressurisation of the whole platform should be uniform force. Therefore, the working surface of the upper and lower platforms must be parallel. If the design is not reasonable, it will cause uneven pressure and excessive empty stroke.


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