Seven problems that must be paid attention to when purchasing an automatic die cutting machine

Look at the processing quality and assembly accuracy of each part of the machine. Restricted by the technical level of the regional machinery manufacturing industry, many parts of the die cutting machine are rough processed.

1. Intermittent mechanism and main drive system.

The matching and manufacturing accuracy between the intermittent mechanism of the automatic die cutting machine, the main drive system and the chain directly affect the machine speed. If the assembly accuracy is poor, it will affect the die cutting accuracy and cause noise. Another example is the unreasonable determination of the gap between the toggle pressure mechanism and the moving platform, which will cause vibration and affect the speed and accuracy.

2. Feeding speed and positioning mechanism.

At present, the commonly used method is continuous feeding, that is, the front sheet and the back sheet always have a part of overlapping. This method is stable and fast, but the rapid movement causes the paper to have a great impact on the positioning front gauge, and the paper curls or bounces after being stressed, resulting in inaccurate positioning. The ideal automatic die cutting machine should ensure the die cutting speed while keeping the movement speed of the paper on the feeding table as low as possible.

3. Intermittent mechanism, chain and feeding teeth of automatic die cutting machine.

Flat die cutting machines mostly use equal indexing cam mechanisms, and whether the shape of the cam is reasonable is the key. The tightness of the chain should be moderate, too tight or too loose will affect the die cutting accuracy. The paper feeding teeth of the flat die cutting machine are mostly solid, but they are still easily deformed during high speed motion, and the inertia is large during emergency stop. A good gripper bar is hard and light, with a moderate amount of angle and pressure.

(LKS1650G Automatic Die Cutting Machine)

4. Automatic die cutting machine chain guide.

The guide rail plays the role of positioning and controlling the direction of the chain. The thickness of the guide rail should be suitable to be embedded in the chain piece. The distance between the upper and lower guide rails must ensure the smooth passage of the chain, too small increases the transmission resistance; too large the chain is easy to jump. The track of the guide rail and the length of the chain also have a certain influence on the performance of the machine.

5. Transmission system of automatic die cutting machine.

The main drive of the current die cutting machine is driven by the motor to drive the worm and the worm gear. Worm gears are mostly helical teeth. It should be noted that when the worm gear and the worm are meshed at the index circle, the backlash between the gear teeth and the gear teeth is appropriate. If the side clearance is too large, the worm gear transmission will be unstable; if the side clearance is too small, it is not conducive to the flow of lubricating oil. In addition, the unreasonable pressure angle will affect the stability of the transmission.

6. Die cutting mechanism of automatic die cutting machine.

The most important device of the die cutting machine is the die cutting mechanism. The most common double toggle mechanism at present, the crank rotates once, which enables the movable platform to reach the highest limit position twice. In order to ensure the quality of die cutting, the entire platform should be uniformly stressed during pressurization. Therefore, the working surfaces of the upper and lower platforms must be parallel. If the design is unreasonable, it will cause uneven pressure and excessive idle stroke.

7. Die cutting version of automatic die cutting machine. Die cutting knife and rubber strip.

These three items are the basic components of the automatic die cutting machine, and their quality is directly related to the quality of die cutting. The plate requires uniform density, light weight, high hardness, good flexibility, easy processing, smoothness, firmness, and the cutting line is stable after being embedded and can be replaced many times. The knife edge should be sharp, the height error of the whole knife and the bending of the big knife should be small. The hardness of the rubber strip should be moderate, and the knife edge should not be squeezed and the resilience should not be insufficient.

Shandong Lukes Machinery is a factory specializing in the production of die cutting machines. The hot selling products include automatic die cutting machines and semi automatic die cutting machines. We have professional technicians and after sales service teams, and our customers are located in dozens of countries and regions around the world.