1. During the use of the three in one feeder, because the power source used during relaxation is air pressure, and it is generally used together with the punch, it is inevitable to produce vibration. It often happens that the vibration will loosen the relevant positioning screws of the three in one and affect the leveling and feeding accuracy, Therefore, the current method is to directly process the countersunk hole on the side plate and fix the distance between the tapping at the end of the positioning shaft and the plates on both sides, or do not add the positioning shaft. This method is not conducive to adjusting the positioning shaft to eliminate the error.
2. In the driving device of the three in one feeder, the servo motor generally controls the feeding of the feeding roller. Because the output torque of the servo motor itself is small and can not meet the use needs, it is necessary to decelerate between the feeding roller and the servo motor to meet the use requirements of increasing the kneading torque. Generally, in terms of structure, in addition to using the reducer for deceleration, it basically adopts two-stage synchronous wheel deceleration or one-stage synchronous wheel deceleration. In the process of actual manufacturing and use, due to structural differences, if two-stage synchronous wheel deceleration is adopted, it is inconvenient during installation. At the same time, it will be more troublesome to replace the synchronous belt after the synchronous belt is worn. If one-stage synchronous wheel deceleration is adopted, In the actual use process, due to the large deceleration ratio and the small number of meshing teeth of the synchronous belt, the transmission rate is reduced, and the effect is not very ideal.
3. During the feeding process of the three in one feeder, in order to meet the accuracy requirements, the positioning pin is generally required to be set in the mold to eliminate the feeding error each time. Therefore, the feeding equipment needs to have the relaxation function. After each feeding step is completed, the feeding roller needs to be relaxed to reposition each product to eliminate the cumulative error of each feeding. During the actual use of the three in one feeder, it is found that during the actual relaxation, only the middle relaxation and the rear relaxation can fully meet the use requirements, and the front relaxation can only be used during the coiling process. Moreover, during the relaxation, if both the front, middle and rear relaxation are adopted, it is difficult to control the relaxation action to be completely unified, Moreover, the front release roller will be pressed down to pinch the material for convenience when the material elasticity is large or the material is thick.
The three in one feeder has won the favor of more and more stamping customers due to its high degree of automation, good leveling and feeding accuracy, high synchronization performance with the punch, simple operation, great saving of labor cost and floor space. With the increase of demand, there are more and more manufacturers engaged in the production of three in one feeder in China, but the quality is also uneven, especially in the design and production.
In the design and production of the three in one feeder, detailed optimization and improvement are carried out for the three common problems. The transmission device of one-stage synchronous wheel deceleration and then one-stage gear deceleration is adopted, which is not only convenient for installation and maintenance, but also conducive to improving the transmission efficiency; The air cylinder of feed front roller is changed from automatic valve control to manual valve control, which is convenient for users to operate and save costs; The installation of side plate positioning shaft can effectively position, and adjust the positioning shaft to eliminate errors in case of errors.
