Operation and maintenance of single punch

1、 Application and characteristics tdp-5 single punch tablet machine can press powder and granular raw materials into tablets It can be widely used in pharmaceutical factory, chemical factory, hospital, scientific research unit, laboratory trial production and small batch production This machine has excellent performance, strong adaptability, easy to use, easy to maintain, small size, light weight, and can also shake the tablet when there is no electricity The machine is only equipped with a pair of dies, the filling depth and tablet thickness of materials can be adjusted, which can meet the requirements of pharmaceutical industry for pressing various Chinese and Western pharmaceutical preparations and other industries for pressing various similar products, and is popular with users in various industries II Installation and wiring of tablet press 1 The tablet press is installed on a solid wooden workbench (or on a cement platform) and fixed with three sets of M12 anchor screws The body paper from the worktop to the ground is about 600mm (by hand, easy to operate) For the convenience of disassembly and repair, there should be a hole with a diameter of about 35mm in the position piece of the corresponding down punching core phase bar on the wooden workbench 2 Before connecting the motor power supply, connect the motor ground wire to ensure safety Then remove the V-belt, connect the motor power, start the motor to observe whether the rotation direction of the motor is correct (the rotation direction of the motor shaft should be opposite to the direction of the arrow on the protective cover or hand wheel) If the rotation direction is not correct, connect the wires separately and then install the V-belt 3、 Adjustment during die loading and unloading and tablet pressing 1 Installation of die (1) installation and punching up: loosen the lower punching fixing screw, turn the hand wheel to raise the lower punching core rod to the Zui high position, insert the lower punching rod into the hole of the lower punching core rod (pay attention to make the notch slope of the lower punching rod align with the lower punching fastening screw, and insert it to the bottom) After Zui, tighten the lower punching fixing screw (2) installation of lower punch: loosen the upper punch fastening nut, insert the upper punch rod into the hole of the upper punch rod, insert it to the end, use a wrench to clamp the six sides at the lower part of the upper punch rod, and screw down the upper punch fastening nut (3) install the middle mold: loosen the fixing screws of the middle mold, level the middle mold and put it into the hole of the middle mold platen, punch it down into the hole of the middle mold, press it to the bottom, and then tighten the fixing screws of the middle mold When placing the middle mold, pay attention to flattening the middle mold, so as to avoid jamming when placing it askew and damaging the hole wall (4) Turn the hand wheel by hand to make the upper punch slowly drop into the middle mold hole, and observe whether there is collision or friction If there is collision or friction, loosen the fixed screws (two) of the middle mold plate, adjust the fixed position of the middle mold plate, make the upper punch enter the middle mold hole, and then tighten the fixed screws of the middle mold plate Only when the upper punch enters the middle mold without collision or friction can it be installed Qualified 2 Adjust and turn the hand wheel to make the lower punch rise to the Zui high position, observe whether the lower punch face is flush with the middle die plane (or high or low will affect the chip) If not, loosen the butterfly screw, loosen the gear press plate to transfer the upper adjusting gear, so that the lower punch face is flush with the middle die plane, and then still press the press plate up, and tighten the butterfly screw At this point, shake the hand wheel by hand and run the idle car for more than ten revolutions If the machine operates normally, the material can be added for pressure test and the next adjustment can be carried out 3 For the adjustment of filling depth (i.e the adjustment of tablet weight), loosen the butterfly screw and loosen the gear pressing plate Turn the lower adjusting gear to the left to raise the lower punching core rod, and the filling depth will be reduced (the weight of the tablet will be reduced) After adjustment, press the gear pressing plate and tighten the butterfly screw 4 Adjustment of pressure (i.e adjustment of tablet hardness): loosen the connecting rod lock nut, turn the upper punching core rod, turn left to make the upper punching core rod move downward, the pressure will increase, and the hardness of the extruded tablet will increase; on the contrary, turn right to reduce the pressure, and the tablet hardness will decrease After adjustment, use a wrench to clamp the six sides of the lower part of the upper punching core rod, and still lock the connecting rod lock nut So far, the adjustment of the die has been basically completed, and then more than ten pieces of motor pressure test have been started If the weight, hardness and surface finish of the pieces are qualified, they can be put into production In the process of production, the quality of tablets must be checked at any time and adjusted in time 5 Disassembly of stamping die (1) disassembly and punching up: loosen the fastening nut of punching up to pull out the punching up bar If the fit is tight, clamp the punching up bar with a pair of pliers to pull it out, but pay attention not to damage the edge of the punch (2) disassembly of the middle die: loosen the fixing screw of the middle die, unscrew the downpunch fixing screw, loosen the butterfly screw, and loosen the gear pressing plate Transfer the adjusting gear to make the lower punching core rod lift the medicine by 10 mm, turn the hand wheel slightly to make the lower punching core rod push out a part of the middle mold, and take out the middle mold by hand If the middle mold fits tightly in the hole, do not turn the hard top of the hand wheel with force to avoid damage to the parts At this time, it is necessary to remove the middle mold platen and then take out the middle mold (3) remove the punch down: first, the set screw of the punch down has been unscrewed, then turn the hand wheel to raise the punch down core rod to the Zui high position, and then pull out the punch up rod by hand If the fit is tight, it can be clamped out with pliers (pay attention not to damage the edge of the punch) (4) after the die is disassembled, it is necessary to turn the adjusting gear to make the lower core rod retreat about 10 mm When the hand wheel is turned to make the lower core rod rise to the high position of Zui, the top of the lower core rod is not higher than the bottom of the middle die plate (this step should not be ignored, so as to avoid the accident of collision between the lower core rod and the top of the middle die when it is used again) After Zui, screw in the lower punch fixing screw 4 Disassembly and installation of main parts 1 Disassembly of the middle formwork base plate: take out the powder baffle, take down the hopper, screw out the fastening screw of the feeder, screw down the fixing stud and spring of the feeder, take down the feeder, screw down the fixing screw and spring washer of the middle formwork base plate, and then take down the middle formwork base plate Installation: refer to the reverse order above Pay attention to alignment when screwing on the feeder fastening screw To avoid damage to the feeder screw hole 2 Disassembly of upper punching core rod: loosen the lock nut of the connecting rod, turn the upper punching core rod to separate it from the connecting rod, turn the hand wheel to raise the eccentric wheel housing to the Zui high position, turn the eccentric connecting shell to swing the connecting rod to the front upper part, and then the upper punching core rod can be pulled out from the upper part of the mold base hole Refer to the reverse order for installation 3 Disassembly of lower punch core rod: unscrew the lower punch fixed screw, butterfly screw and gear press plate to turn the adjusting gear, so that the lower punch core rod can be lowered and taken out from the bottom hole of the machine body Installation: refer to the reverse order above 4 Connecting rod removal: first remove the upper punch core rod, then remove the steel wire retaining ring on the connecting rod pin, take out the connecting rod pin, and then remove the connecting rod Installation: proceed in reverse order 5 Disassembly of large belt pulley, pinion and bridge shaft: hold down the V-belt, screw down the right end nut and washer of bridge shaft (in the body), hold the large belt pulley firmly by hand, pull out together with the pinion and bridge shaft, and then pull out the bridge shaft from the wheel hole (the big belt pulley, the pinion and the shaft sleeve are pressed together Generally, they do not need to be disassembled.) Installation: refer to the reverse order above 6 Disassembly of main shaft: two persons shall be responsible for the disassembly of main shaft First remove the large pulley, then screw down the nut to remove the lever, lever shaft and filling roller (if necessary, remove the hand wheel and filling CAM) remove the protective cover, screw down the screw and washer, and knock the non working surface inside the big gear with a wooden hammer (not important) Remove it (pay attention not to lose the lifting roller), knock the shaft end with a wooden hammer and a copper rod (pay attention not to damage the screw hole at the shaft end), hold the other end of the shaft and hold the eccentric wheel shell, and slowly remove the main shaft Installation: refer to the reverse order above 5、 Lubrication and maintenance of the machine 1 The lubrication of the friction surface of all moving parts is an important link to ensure the normal operation and prolong the service life of the machine Especially, if the main moving parts are in short of oil, the dry transfer will be damaged quickly and cannot be used Therefore, before using the tablet press, all oil cups, oil holes and friction surfaces must be lubricated, and the friction surfaces must be covered with oil film when the machine is running empty, and then it can be put into operation Use In the future, every shift should be refueled on time, but not too much should be refueled each time, so as to avoid spillage affecting cleaning and contaminating tablets See the following table for the oil filling parts and times: 2 Before each shift, check whether the screws are loose, and pay attention to check frequently during the working process If there is any looseness, tighten them immediately to avoid failure Its main parts are: punching up fastening nuts, fixing screws of middle die, punching down fixing screws; connecting rod lock nuts, connecting rod pin set screws; lifting fork lock nuts (2) butterfly screws; middle die plate set screws (2) No of filling position and filling times table Main shaft hole oil cup (2 pieces) grease 2-3 times 2 eccentric wheel housing oil cup 1 piece of grease 2-3 times 3 One grease cup of the transaxle shaft 2-3 times 4 lifting cam groove (i.e inner groove of the big gear) Every shift, check the surface of the groove, wipe off the dirt, add grease once and fill the groove of the cam with grease Check every shift, add oil as needed 6 check gear surface grease every shift, add oil as needed 7 Oil in the oil hole of the connecting rod once 8 oil in the swing fulcrum of the lever once 9upper plunger surface oil twice 10lift rod surface 3 Before and after each shift, several pieces of oil shall be tested by hand If there is no problem, open the electric pressing piece 4 In the process of tablet pressing, it is necessary to check the quality of the die frequently In case of any missing edge, crack or serious damage due to deformation, it is necessary to replace the die in time, so as not to damage the machine and affect the tablet due to failure