1. The processing quality and assembly accuracy of each part of the equipment
Limited by the technical level of the domestic machinery manufacturing industry, many parts of the die-cutting machine are rough. For example, the matching and manufacturing accuracy between the intermittent mechanism and the main transmission system and chain directly affect the speed of the machine. 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. Intermittent mechanism, chain and paper feeder
Flat pressing die-cutting machines mostly use equal indexing cam mechanism, 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 feed teeth of the flat die cutting machine are mostly solid, but they are still easily deformed during high-speed movement and have a large inertia during an emergency stop. A good row of teeth has high hardness and light weight, and the angle and pressure are moderate.
3. Transmission system
The main drive of the current die-cutting machine is driven by the motor worm and worm gear. Worm gears are mostly helical gears. It should be noted that when the worm gear and the worm are meshed at the dividing circle, whether the backlash between the gear teeth is appropriate. If the backlash is too large, the worm gear transmission is not stable; if the backlash is too small, it is not conducive to the flow of lubricating oil. Also, the unreasonable pressure angle will affect the stability of the transmission.
4. Die-cutting plate, die-cutting knife and rubber strip
These three items are the basic components of die cutting, and their quality is directly related to the quality of die cutting. Plates require uniform density, light weight, high hardness, good flexibility, easy processing, flatness, and solidity. The knife line is stable after insertion and can be replaced multiple times. The knife edge should be sharp, the height error of the whole knife and the bending of the big knife are small. The hardness of the rubber strip should be moderate, and it should not squeeze the edge of the blade or have insufficient resilience.
5. Paper feeding speed and positioning mechanism
At present, the commonly used method is continuous paper feeding, that is, a part of the front sheet and the back sheet always overlap. This method is stable and fast, but the rapid movement causes the paper to have a great impact on the positioning front gauge. The paper curls or bounces after being stressed, resulting in inaccurate positioning. The ideal die-cutting machine should guarantee the die-cutting speed, and the movement speed of the paper on the conveying table should be as low as possible.
6. 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. The distance between the upper and lower guide rails must ensure that the chain passes smoothly, too small increases the transmission resistance; too large chain is easy to jump. The trajectory of the guide rail and the length of the chain also have a certain influence on the performance of the machine.
7. Pressure-applying mechanism
The most important device of the die cutting machine is the pressure applying mechanism. At present, the most common double toggle mechanism, 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 evenly stressed when pressurized. 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 empty stroke.
The above is not only the buyer's attention, but also the problem that the die-cutting machine manufacturer must effectively solve when manufacturing equipment.
Wedge Cushion,Pelvic Tilt Wedge Cushion,Wedge Cushion For Bed,Posture Wedge Cushion
Hebei siuno household supplies co.,ltd , https://www.ciaosleep.com