Price concessions, factory package freight.
First, the use and characteristics of small tablet press
TDP- 1.5T single punch tablet press can press powdery raw materials into tablets, which can be widely used in pharmaceutical factories, chemical plants, hospitals, scientific research units, laboratories and small batch production.
The machine has excellent performance, strong adaptability, convenient use, easy maintenance, small size and light weight, and can be operated manually when there is no electricity. The machine is only equipped with a punching die, and the filling depth and tablet thickness of the material can be adjusted, which can meet the pressing requirements of various Chinese and western medicine tablets in the pharmaceutical industry and similar products in other industries, and is well received by users in various industries.
Second, the small tablet press technical specifications
Serial number item TDP- 1.5t
1 maximum tabletting force (kn)
2 Maximum tablet diameter (mm) 14
3 Maximum filling depth (mm) 15
The tabletting output (tablets/hour) is about 4000 tablets.
5 Matching punching model TDP- 1.5
6 motor power (watt) single phase 1. 1KW three-phase 0.75KW
7 rpm1400
8 Machine weight (kg) 90kg
9 Length× Width× Height (mm) 760×360×690
Three. Installation and wiring of small tablet press
1. The tablet press is installed on a solid wood workbench (or cement workbench) and fixed with three sets of M 12 anchor screws. The height of the workbench from the ground is about 600 mm (measured by hand, easy to operate).
In order to facilitate disassembly and maintenance, there should be a hole with a diameter of about 35 mm on the wooden workbench corresponding to the lower punch.
2. Before connecting the motor power supply, connect the motor to the ground wire to ensure safety.
Remove the V-belt, turn on the power supply of the motor, start the motor, and observe whether the rotation direction of the motor is correct (the rotation direction of the motor shaft should be the same as the direction of the arrow on the big pulley). If the rotation direction is wrong, wire it separately, and then install the V-belt.
Four, small tablet press mold instructions
1. Installation of stamping die:
(1) Mounting projection
Unscrew the fixing screw of the punch, turn the big pulley to raise the lower punch rod to the highest position, insert the lower punch into the hole of the lower punch rod (note that the notch slope of the lower punch rod is aligned with the fastening screw of the lower punch and inserted into the bottom), and finally tighten the fixing screw of the lower punch.
(2) Install the upper punch
Loosen the upper punch fastening nut, insert the upper punch into the hole of the upper punch mandrel and tighten the upper punch fastening nut.
(3) installing the intermediate mold
Loosen the fixing screw of the middle die, lay the middle die flat in the hole of the middle die pressing plate, punch it into the hole of the middle die at the same time, press it to the bottom, and then tighten the fixing screw of the middle die. When placing the middle die, pay attention to hold the middle die flat to avoid getting stuck and damaging the hole wall when placing it askew.
(4) Turn the big pulley by hand, so that the upper punch slowly descends into the hole of the middle die, and observe whether there is collision or friction. If there is collision or friction, loosen the fixing screws (two) of the middle die pressing plate, adjust the fixing position of the middle die pressing plate to make the upper punch enter the hole of the middle die, and then tighten the fixing screws of the middle die pressing plate until the upper punch enters the middle die without collision or friction, and the installation is qualified.
2. The adjustment of the film
Turn the big pulley to raise the lower punch to the highest position, and observe whether the surface of the lower punch is flush with the plane of the middle die (high or low will affect the ejection of the die). If not, loosen the butterfly screw, loosen the gear pressure plate, rotate the upper adjusting gear to make the lower punch face flush with the plane of the middle die, then press the pressure plate and tighten the butterfly screw.
At this time, turn the big pulley by hand and idle for more than ten times. If the machine is running normally, you can charge and test the pressure, and make the next adjustment.
3. Adjustment of filling depth (i.e. adjustment of tablet weight)
Loosen thumbscrews and loosen gear pressure plate. Turn the lower adjusting gear to the left, so that the lower punch rises, and the filling depth decreases (the weight of tablets decreases), otherwise the filling depth increases (the weight of tablets increases). After adjustment, press the gear pressure plate and tighten the wing screw.
4. Adjustment of pressure (i.e. adjustment of tablet hardness)
Loosen the knurled screw and adjust the copper sleeve of the eccentric downward, so that the pressure increases and the tablet hardness increases; On the contrary, upward adjustment will reduce the pressure and hardness of tablets. After adjustment, tighten the knurled screw and lock the copper sleeve of the eccentric.
At this point, the adjustment of the mold is basically completed, and then the motor is started to test more than ten pieces. If the quality such as weight, hardness and surface smoothness are qualified, it can be put into production. In the production process, it is still necessary to check the quality of tablets at any time and adjust them in time.
5. Dismantle the mold of small tablet press.
(1) Remove the upper punch.
Loosen the upper punch fastening nut to pull out the upper punch. If the fit is tight, you can clamp the upper punch with pliers and pull it out, but be careful not to damage the shuttle edge of the punch.
(2) Dismantling the intermediate mold
Loosen the fixing screw of the middle die. Unscrew the fixed screw of the punch, loosen the butterfly screw and loosen the gear pressure plate. Turn the adjusting gear to make the lower punch rise by about 10mm, and gently turn the big pulley to make the lower punch eject a part of the middle die and take it out by hand. If the middle die is closely matched with the hole, do not turn the handwheel forcibly to avoid damaging the parts. At this time, before taking out the middle die, it is necessary to remove the pressure plate of the middle die.
(3) removing the undershoot
Unscrew the fixing screw of the lower punch first, then turn the handwheel to raise the core rod of the lower punch to the highest position, and then pull out the upper punch rod by hand. If the fit is tight, you can clip it out with pliers (be careful not to damage the edge of the punch).
(4) After the stamping die is disassembled, it is necessary to rotate the adjusting gear to make the lower punch retreat by about 10 mm, and when the lower punch is raised to the highest position by rotating the handwheel, its top end is not higher than the bottom surface of the middle die platen (this step cannot be ignored to avoid an accident when the lower punch collides with the middle die again). Finally, tighten the lower punch fixing screw.
Verb (abbreviation of verb) Disassembly and installation of main parts
1. Intermediate template
Disassembly: Pull out the powder baffle, remove the hopper, unscrew the fastening screws of the feeder, unscrew the fixing studs and springs of the feeder, remove the feeder, unscrew the fixing screws and spring washers of the middle template, and then remove the middle template.
Installation: refer to the above reverse order. Pay attention to the alignment when tightening the fastening screws of the feeder. So as not to damage the screw hole of the feeder.
2. Upper core punch:
Disassembly: Loosen the fastening screw of the small shaft of the upper punch, take out the small shaft, and then loosen the fastening screw of the upper punch. First remove the spindle (see spindle 5) and pull it out. When installing, install the core punch first, and then install the spindle.
3. Lower core punch:
Disassembly: unscrew the lower punch fixing screw, butterfly screw and gear pressure plate, and rotate the adjusting gear to make the lower punch rod descend and take it out of the bottom hole of the fuselage. Installation: refer to the above reverse order.
4. Big pulley, pinion and shaft
Disassembly: press down the V-belt, unscrew the screws and pressure plates at the left and right ends of the axle shaft, tap the big pulley with a wooden hammer, remove and pull out the axle shaft, and tap the pinion with a wooden hammer.
Installation: refer to the above reverse order.
5. Spindle:
Disassembly: Two people remove the spindle together. Remove the protective cover first, then the big gear, and loosen the lifting cam, eccentric wheel and fastening screw. Remove the cam, then beat the shaft end with a wooden hammer and a copper bar (be careful not to damage the screw hole at the shaft end), firmly hold the other end of the shaft, hold the eccentric wheel cover and the lifting cam, and slowly remove the spindle. (Note: Do not lose the lifting roller and the traction roller. )
Installation: refer to the above reverse order.
VI. Lubrication and Maintenance of Small Tablet Press
1. The lubrication of the friction surfaces of all moving parts is an important link to ensure the normal operation and prolong the service life of the machine. Especially in the case of oil shortage, if the main moving parts are damaged quickly, they 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 after idling before they can be put into use. In the future, refuel on time in each shift, but don't add too much each time, so as to avoid spilling, affecting the cleaning and polluting the tablets. See the table below for each refueling position and refueling time:
Oil filling position and oil filling times table
Refueling times of lubricating oil added by the refueling department per shift.
Apply 1 spindle hole oil cups (2 pieces) for 2-3 times.
2 Oil the oil hole (pressure adjusting screw hole) of the eccentric wheel cover for 2-3 times.
3. Butter 2 oil cups (at the back of the fuselage) 2-3 times.
4 Lift the surface of the cam groove with butter to check the groove, wipe off the dirt, and add butter once per shift.
5 Add butter to the groove of the cam. Check once per shift and refuel properly.
6. Check the butter on the gear tooth surface in each shift and add oil appropriately.
7 Butter is the upper core punch 1 secondary oil hole
8 Grease the swing fulcrum of lever 65438 +0 times.
9 Apply butter to the surface of the punch twice.
Grease the surface of 10 lifting rod twice.
2. Check whether the screws are loose before each shift, and always pay attention to the inspection at work. If it is loose, it should be tightened immediately to avoid failure. Its main parts are:
(1) Upper punch fastening nut, middle die fixing screw and lower punch fixing screw;
(2) the small shaft fixing screw of the upper core punching rod;
(3) wing screw of lifting fork lock nut (2);
(4) the fixing screws of the middle formwork;
(5) Hopper fixing screw;
(6) Connecting screws of tie rods.
3. Manually test several tablets before and after each shift, and then turn on the electric tablet if there is no problem.
4. In the process of tabletting, the quality of stamping die should be checked frequently. If missing edges, cracks, serious deformation and damage are found, they should be replaced in time, so as not to damage the machine and affect the quality of tablets.
5. After daily use, the remaining powder particles should be taken out and all parts of the machine should be wiped. If the machine is shut down for a long time, the stamping die must be removed, all the friction surfaces and working surfaces of the machine must be wiped clean, coated with antirust oil and covered with dust-proof clothes; Stamping dies should be wiped and immersed in oil to protect the desktop publishing system.
6. Check the machine twice a month.
Seven, small tablet press use matters needing attention
1. Please read the instructions carefully before using the machine for the first time, and then use it.
2. This machine can only run in a certain direction (as indicated by the arrow on the handwheel or protective cover), and cannot be reversed to avoid damaging parts. Pay special attention to the adjustment of the tablet computer, and don't neglect it.
3. Belt tightness adjustment: it is adjusted by two adjusting nuts on the electromechanical bottom plate. Pay attention to locking after adjustment.
4. Before starting the electric tablet press, the upper punch should be in the rising position before starting. If it is started when the upper punch is in the lowered position, it will enter the middle punch plate immediately after it is started. At this time, because the machine speed has not yet gone up, the inertia is small and it is easy to bump. (That is, after the upper punch enters the middle die, due to the resistance of tablets, the machine stops running, and the machine is often damaged or the motor is burned due to excessive load during jacking).
5. Handling method after jacking the car
(1) In the process of electric tabletting, if there is a car jacking phenomenon, turn off the power immediately to avoid burning out the motor.
(2) When the jacking situation is light, you can manually pull the handwheel to make the upper punch pass through the "dead point" (but it cannot be reversed, so as to avoid repeated feeding by the feeder and more serious jacking).
(3) If serious jacking occurs, remove the small shaft of the upper punch to raise it to reduce the pressure, then turn the handwheel to eject the tablets, and then readjust the hardness of the tablets.
6. In the process of tabletting, the quality of tablets (tablet weight, hardness, surface smoothness, etc.). ) must be checked and adjusted in time.
7. The batching process before tabletting has a great influence on tabletting. Formulation and granulation (powder condition, particle compactness, powder proportion, water content, etc.) of medicinal materials and auxiliary materials such as lubricants, fillers and adhesives. ) directly affects the quality of tablets. And often due to improper granulation of ingredients, it is impossible to slice and even damage the machine. Therefore, this machine cannot be used for semi-solid or wet or granular fine powder tabletting. In use, if it is found that the pressure has been adjusted to a considerable extent, but it cannot be pressed into tablets, or it is too loose, layered, broken, pitted, pulverized, etc. after being pressed into tablets. Then we should find out the reason from the aspect of composition and solve it. Do not blindly adjust and increase the pressure to avoid damaging the machine. In addition, although the hardness of tablets extruded from some medicinal materials is not great, they have certain toughness and good impact resistance (usually they will not break when dropped from the height of 1- 1.2 meters). Therefore, in order to meet the requirements of operation and storage, we should not only pay attention to hardness, so as to avoid excessive tabletting pressure and damage to the machine.
Eight, the common faults of small tablet press
order
Fault situation, prevention and treatment of fault causes.
1 top
After the car rushed into the middle mold,
"Top dead", machine
Stop running (1) pressure is too high; medicinal tablet
Very good.
(2) Repeated feeding.
(3) The eccentric shell and spindle hole are lost.
Oil, too much rotation resistance,
Even serious wear and tear.
"Bite to death" phenomenon.
(4) The belt is too loose.
(5) Improper starting position.
(6) the hand is not hard enough. (1) Adjust the pressure gradually, not too much at a time, and don't press the tablets too hard.
(2) Avoid repeated feeding. See article 5.
(3) Always keep lubrication. If it has been seriously worn or "bitten", it must be dismantled and repaired immediately.
(4) Adjust the belt. Please refer to Article 3 for precautions.
(5) See Article 4 for precautions in use.
(6) The hand-cranked flat plate must be hard when it is started or when it passes through the lowest point.
(7) See Article 5 for the treatment method after jack-up.
Second, the effect is not good. The friction surface of general moving parts is short of oil, dirty, rusty and badly worn. Check all parts regularly to keep them clean and lubricated (see article 1 for lubrication and maintenance). If any defects are found, they must be repaired immediately to avoid making them worse and damaging the machine.
The reason why the downward punch is heavy or blocked (1) is that the die surface is not only worn; Or due to improper granulation of ingredients, the powder adheres to the surface of the punch and the middle die, which increases the resistance of the top sheet.
(2) The lifting cam is seriously worn or enters sundries.
(3) Improper adjustment causes friction between the lower punch and the middle die when it rises. (1) Check the intermediate mold. If there is mold sticking, repair the mold or reprocess the medicine according to the situation.
(2) Check and repair, and keep it clean and lubricated.
(3) Pay attention to the concentricity between the undershoot and the middle die during adjustment.
3 Abnormal vibration (1) loose parts and screws.
(2) The parts are badly worn.
(3) The friction surface is dry and short of oil or enters dirt. (1) Check frequently. See Article 2 of Lubrication Maintenance.
(2) Regular inspection and timely repair of worn parts.
(3) Always pay attention to the cleaning and lubrication of the friction surface, especially the friction surface of the spindle and eccentric wheel. Although it cannot be directly seen, its workload is the most important.
4 wear the friction surface between the spindle and the hole is rapidly worn or even burned out. Oil shortage, impurities. Always keep it clean and lubricated, and the lubricating oil used must be clean and free of impurities.
Rapid wear of pinion and shaft ditto ditto
The rapid wear of upper punch and sleeve is the same as above.
In addition to the above reasons, the groove of the lifting cam will wear quickly:
(1) Improper batching and granulation, or unsmooth die surface, which leads to die sticking, increasing the resistance of top die and the load of lifting cam groove, resulting in rapid wear.
(2) The lifting roller can't move due to tight fit or rust. (1) Check the mold. If there is mold sticking, repair the mold or re-burden and granulate according to the situation.
(2) Disassembly and repair.
The surface of the die wears rapidly (1), and improper adjustment leads to friction between the upper punch and the middle die.
(2) Improper granulation of ingredients, such as too little slip and too thick powder. (1) adjusted separately.
(2) Re-processing of medicinal materials.
5. The feeder was damaged and collided with the lower punch (1). Improper adjustment of the plate, the lower punch is out of the plane of the middle die.
(2) The set screw of the lower punch is loose, and the lower punch rises out of the plane of the middle die. When installing and adjusting the stamping die, pay attention to the looseness of the screw, immediately press the stamping die to the bottom and tighten the fixing screw.
When the middle die collides with the middle die, the fixing screw is loose, and the middle die rises out of the plane of the middle die platen. be the same as the above
Impact damage (1) Reversing when adjusting, causing collision.
(2) During adjustment, the position of the upper punch is too low, and the handwheel is turned to cause collision. Please pay attention when adjusting.
6 it is difficult to unload the mold. The upper punch, the lower punch or the middle die cannot be taken out of the hole. (1) The die size or die hole size of the tablet press is unqualified, and the fit is too tight.
(2) The mating surface is rusted. (1) Pay attention during installation. If it is found to be too tight, repair and replace it.
(2) When installing, wipe the mating surface and apply oil film. If it is not used for a long time, the stamping die should be removed to wipe the mating surface, coated with antirust oil and properly stored.
7. Overlapping tablets are pressed into one piece by twice feeding. When adjusting tablets, reverse the handwheel to make the feeder feed repeatedly, resulting in overlapping tablets. (1) Be careful not to reverse when adjusting.
(2) When the repeated feed has not become an overlapping piece, you can slowly reverse the handwheel to jack up the tablets, brush off the repeated feed and pull out the tablets. If it is pressed into the overlapping part and jacked up, it will be handled according to the jacking situation (see the instruction number. 1).
8. Jumping chips and fragments are too jumping or broken when they are rushed out (1), and the ejection is not properly adjusted, and the chips are rushed down below the plane of the middle die, so that the chips are blocked or even crushed when they come out.
(2) The fixing screw of the middle die is loose, and the middle die rises the baffle. (1) When the lower punch rises to the highest level, adjust the position of the lower punch to make it flush with the plane of the middle die.
(2) Adjust the middle die and tighten the screws.
9. When pills with burrs and lobes are ejected from the middle die, the circumferential surface is scratched and even the pills are broken. (1) The smoothness of the middle die is unqualified or worn, which scratches the circumferential surface of the tablet, and often leads to the crack of the tablet due to the unsmooth ejection.
(2) Improper batching and granulation leads to mold sticking and burrs or cracks. (1) Replace the middle die (note: the middle die can be installed upside down after one side is worn, and the other side can be used).
(2) Re-processing of medicinal materials.
10 tablet not only has pits and pits on the surface of the tablet, but also has the phenomenon of uncovering. (1) The surface of the punch is not only.
(2) Improper batching and granulation. (1) Repair and replace the punch.
(2) Re-processing of medicinal materials.
1 1 loose pieces are not hard enough, loose and fragile, layered, etc. (1) Insufficient pressure.
(2) Improper batching and granulation. (1) Adjust the pressure (see "4" and "4").
(2) Re-processing of medicinal materials.
12 The weight difference of the unstable sheet is too large (1), the fastening screw of the lower punch is loosened, and the lower punch rises, reducing the filling amount.
(2) The butterfly screw is loose, and the lower adjusting wheel rotates to change the filling quantity.
(3) The particles are elastic and uneven in size. (1) Press the lower punch to the bottom and tighten the fixing screw of the lower punch.
(2) readjust and tighten.
(3) Pay attention to the ingredients and granulation, especially when crushing fragments under heavy pressure.
The upper punch of 13 cannot enter the middle die. The punch and the hole of the middle die are on different axes (1), and the die plate is dislocated.
(2) The upper punch is not installed correctly. (1) Loosen the fixing screw of the middle die press plate, turn the handwheel to make the upper punch slowly descend into the hole of the middle die, adjust the fixing position of the middle die press plate so that there is no collision or friction when the upper punch enters the middle die, and then tighten the fixing screw of the middle die press plate.
(2) Loosen the upper punch fastening nut, rotate the upper punch at any angle, then tighten the upper punch fastening nut, and then repeat the first step until it is suitable.