TOPRA GD 1224 /1228 Die-cutter-unit Die-cutter Unit Operation 1 OverviewThe section introduces mainly die cutter unit functions and its components. Functions of die cutter unit: receive cardboard that has been printed ;and carry out cutting according to cutting die designed by customers. The die cutter unit consists of side frame, steel support, die cylinder, anvil cover roll, die cutting clearance adjustment, upper and lower feeding wheels and adjustment modules, grinding device, die cutting register adjustment modules, scrap conveyance device, oil tank and oil return module, transmission gear, electromotor, and electrically controlled modules and parts. Die cutter unit itself is a relatively complete and independent working unit.Die-cutter Unit 1-Side frame 2-Die-cylinder 3-Anvil roll4-Transfer gear 5-Grinding system 6-Motor7-Doe-cutting gap 8-Upper feeding roll 9-Lower feeding roll 10-Feeding gap adjust 11-Scrap conveyance2 Mechanical parts Die cylinder（See picture A）a. Fine grounded and chrome plated. It has been processed by dynamic balance and can run steadily. b. The die cylinder has enough holes for mounting cutting die, which facilitate clients to install cutting die of different specifications and process paperboard of different specifications.c. Control cutting die cylinder transverse movement through buttons on the control panel, the adjustment distance of which is 20mm in total (10mm). The cutting die position may be adjusted precisely within the precision of 0.1mm. Anvil roll and driving motor（See picture A）a. Fine grounded and chrome plated. It has been processed by dynamic balance and can run steadily. b.The anvil roll can move laterally with a distance of 50mm, which is featured by steady and noiseless operation. As a result, the life of anvil roll is improved greatly.c. It adopts independent motor for anvil roll running and automatically adjusts speed of the roll .No manual work is required. Consequently, it is guaranteed that the carton of each batch has the completely same size when process repeat orders. Grinding device：（See picture A）The lead screw movement is driven by motor and speed reducer. The grinding device moves left and right. So grinding is realized.The ground anvil cover features excellent shape and position precision. As a result, the die cutting pressure may be reduced. The anvil cover becomes more durable and the service life of anvil cover improves greatly. Die cylinderGrinding deviceAnvil rollDriving motor（Pic A） Die-cutting gap adjusting（See picture B）a.The shaft, which is used to adjust the anvil roll, is made of 45# steel. Fine grounded and chrome plated. It has been processed by dynamic balance and can run steadily.b. The gap between die cylinder and anvil roll is motorized. Different thickness paperboard could go through and the precision reaches 0.1mm. Whats more, a limit device is applied for protection.c. It adopts ball bearing structure on both ends, which may be adjusted much more easily. Upper and lower feeding rolls adjusting （See picture B）a. The upper and lower feeding rolls adopts 45# steel. Fine grounded and chrome plated. It has been processed by dynamic balance and can run steadily. b. The gap between upper and lower feeding rolls is adjusted automatically. Different thickness paperboard can go through and the precision could reach 0.1mm. Limit device is applied for protection.c. There are long rack and three mobile pull collars on the upper feeding roll. The three pull collars could be adjusted according to customers need. It is easily adjusted.Feeding gap adjustmentLower feeding rollLower feeding rollUpper feeding rollDie-cutting gap adjusting shaftDie-cutting gap adjusting shaft（B） Die-cutting register adjusting a. It adopts PLC, touch screen control and electrically digital 360 degree regulator. b. Both of running and stop are adjustable. The orders can be saved. Scrap conveyance device：（See picture C）a. The decelerator drives a wide conveyance belt to discharge the scrap out constantly.b. Reduce the downtime to improve production efficiency.（C） Driving gear：（See picture D）a. Hardened and ground. HRC60B. High die cutting precision and excellent service life are ensured.（D） Oil tank assembly and oil returning device：（See picture E）a. The fined alloy oil tank and oil returning device are used to connect all oil tanks in each unit，so lubricant in each unit is kept at the same level.b. Enough lubricating for driving gear is realized. Also complete closure and low noise are kept .c. Improve the driving gear and the whole machines life and create a comfortable working condition.（E） Oil observing assembly：（See picture F）Th