Jul 02, 2020

The oil hydraulic press machine is using special hydraulic oil as a working medium and a hydraulic pump as a power source. It depends on the force of the oil pump to make hydraulic oil enter the cylinder and piston through the hydraulic line. There are several sets of mutually matched seals in the oil cylinder and the piston. The seals in various positions are different, but they all act as sealing, to prevent oil leak. Finally, the hydraulic oil is circulated in the oil tank through the Check-valve, to make cylinder and the piston work properly, so as to complete certain mechanical actions as a kind of machinery for productivity. What is the reason why the oil supply pressure of the hydraulic press is too low? When the engine throttle is fully open, the inlet oil pressure of the torque converter is lower than standard, which is caused by following reasons: • Low oil supply; • Oil pipe leak or block; • Excess oil flow to transmission; • Oil inlet or oil filter block; • Hydraulic pump damage; • Oil suction network improper installation; • Oil bubbling; •Oil-in &Oil-out valves cannot be closed / spring rigidity is reduced. ►Now How to solve the above-mentioned questions: • If the oil supply pressure of the hydraulic press is too low, check the oil level first; • If the oil level is lower than the minimum scale, replenish the oil; • If the oil level is normal, check the inlet and outlet pipes for leaks. Fix the oil leakage problem; • If the inlet and outlet pipes are well sealed, check the oil-in valve and oil-out valve; • If the oil-in valve and oil-out valve cannot be closed, remove them and check whether cracks or scars on the joint parts, whether the oil hole is blocked, whether the spring stiff enough, and solve the problem in time •If the pressure valve is normal, remove the oil pipe or filter to check; •If it is clogged, should clean and remove the sediment; •if the oil pipe is unblocked, the hydraulic pump should be checked, and replace the hydraulic pump if necessary; •If the hydraulic oil bubbles, check the installation of the Oil-Return pipe; •If the oil level of the oil-return pipe is lower than the oil tank, should recheck and install the oil-return pipe. How to Solve the Lack of Pressure when the Hydraulic Press Works? 1. Check the pressure of the relief valve. •If the pressure is not enough, adjust the pressure. •If it does not work after adjustment, replace it with a new relief valve. •If the problem continues, replace the plunger pump. 2. The pressure is normal; check the electromagnetic directional valve or the pressure relief valve. 3. Consider whether the filling valve is leaking. 4. Consider whether the cylinder has leakage. Shunhao Machines has been focusing on the manufacture of hydraulic machinery for 18 years and is committed to be the Top Brand of melamine tableware machinery in China, providing you with various high-quality hydraulic machines. We will serve you wholeheartedly and support more technical questions....

Jun 24, 2020

In hydraulic transmission, hydraulic oil is the working medium that transmits motion and power. It has been proved by practice that hydraulic system failures caused by hydraulic oil account for 75% of the entire hydraulic failure rate, so we must increase the degree of attention. For the newly-made hydraulic oil tank, we may concern how does the pollution cause? How can we effectively clean up? Causes of Pollution: There are many reasons for the pollution of newly-made oil tanks. 1. The pollutants mixed from the external environment are mainly air, dust, cotton yarn, water droplets, etc. 2. The contaminants that remain incompletely cleaned include iron filings, burrs, welding slag, rust, cotton yarn, grit, cleaning fluid, etc. 3. The contaminants generated during the installation process mainly include unclean hydraulic accessories, wearing gloves during installation, and not re-checking before closing the cover. Clean-up Measures: 1. The new hydraulic oil tank formed by welding shall be treated as follows before phosphating. Use a spatula to thoroughly remove the welding slag and weld nodules at the surrounding welds. Use a file to clean the burrs and burrs of the oil tank orifice and the connecting threaded orifices everywhere. Wipe all parts with a lint-free cloth and clean kerosene. Use compressed air to blow off the dust on the surface of the oil tank and the cleaned parts. If you need to install a gasket on the plane of the sealing cover, you must make the gasket in advance. 2. Clean the appearance of the oil tank after phosphating Use a spatula to clean the phosphating solution residues and particles on the inner surface of the oil tank. If there are rust spots, use the sand cloth to remove rust, and apply phosphating solution to the rust-removed parts, and clean the phosphating solution residue after 2 minutes. Clean kerosene with a lint-free cloth, clean the oil ports of the connecting threads everywhere and blow dry with compressed air, seal the oil port with a clean screw plug in time, and thoroughly scrub the inner surface of the tank with clean kerosene. Knead the dough with clean anti-wear hydraulic oil (L-HM46#), paste the welds, holes, corners and other parts of the surface one by one, and repeat the operation until the dough is free of impurities, fine dust and particles. Blow the inside of the oil tank thoroughly with compressed air, and apply clean L-HM46# anti-wear hydraulic oil (to prevent the inside of the oil tank from rusting). If the cleaned oil tank is not assembled for the time being, it should be covered immediately, and it can be sealed with a large tape. And put on the oil tank cap to prevent secondary pollution, and put it in a proper position to avoid knocking. The hydraulic melamine tableware molding machines made by Shunhao are Taiwan technology supported，if operated properly, maintained in an orderly way, can be durable operation and will be the best helper for the melamine tableware factories!

Jun 18, 2020

Mechanical equipment maintenance is a daily work that operators must do to maintain the normal operation of the machine and extend its service life. The maintenance of melamine crockery compression machine can be carried out following the "four requirements". Neat: tools, decal paper, and raw material powder are neatly placed; safety protection devices are complete; line piping is complete. Clean: Clean the inside and outside of the equipment: ensure that the work surface is free of dirt; the oil pipe does not leak, and the exhaust pipe runs normally; the dusting powder is cleaned. Lubrication: add oil and change oil on time, the oil quality meets the requirements; the oil gauge of the oil tank shows normal, and the oil passage is smooth. Safety: implement the system of personnel and machine shift and handover; operators should be familiar with the structure of the equipment and abide by the operating procedures, use the equipment properly, maintain the equipment carefully, and avoid accidents. In addition to fulfilling the above requirements, the workers who operate the melamine tableware molding machine can check and maintain the machine every day to ensure the normal operation of the machine and do the following. 1. Daily operations should be dry cloth to gently wipe the surface of the machine ministries and electrical control box glass. 2. Remove trivial and dust from the heating plate. 3. Abnormal sound happen during operation; should immediately check and solve. 4. Clean all around the machine. 5. Switch off power and release the press of oil gauge as ZERO.

Jun 16, 2020

During the operation of the hydraulic melamine tableware molding machine, some problems will inevitably occur. The long-term downtime due to the problem may cause serious economic losses to the enterprise. For countries except China, the cost of machine maintenance will be increased a lot. In order to meet the requirements of the continuous production of enterprises, the service life of various accessories of Shunhao Factory has been rigorously tested and continuously improved for many years. After assembly, it will be continuously tested for more than 48 hours before being exported to foreign countries to reduce the downtime of tableware factories of foreign customers and reduce maintenance and repair costs. In the continuous work of hydraulic crockery molding machine, it will cause the consumption of some accessories, such as oil seals, oil pumps, or other circuit appliances. In the normal working process of the melamine hydraulic machine, there are three main reasons for the failure of the machine. 1. The Oil Seal is damaged. This situation is mainly because of the continuous running machine, which causes frequent suppression of the machine. Long-time abrasion will cause the consumption of the sealing ring. Shunhao machine uses the NOK wear-resistant oil seal from Japan which can support the machine running for a long time. 2. High pressure and low pressure are not working properly. For small mold, it is suitable for low-pressure work, so the machine pressure is appropriately adjusted less than 150 kgs, and the high-pressure pump can be free of running to protect its parts. 3. The electrical circuit system. It’s suggested to frequently check the total power supply to prevent short circuits or damage to electrical appliances caused by phase loss. All parts of SHUNHAO machines are well-known brand parts selected after years of testing.

Jun 16, 2020

In the normal use of melamine tableware machine, the pressure gauge value display is abnormal, for example, the normal value should be 200, but the pressure gauge shows less than 100, we called Press Drop, how to solve it? In this case, it is judged as a failure caused by insufficient pressure of the master cylinder of the machine. Exclusion steps: Check the appearance of the main cylinder of the machine for oil leakage. Check whether the vent hole on the back of the machine's main cylinder is locked properly and whether there is oil leakage. Open the oil tank and check the pressure relief valve and pressure gauge for oil leakage. If there is no oil leakage in the above accessories, you need to disassemble the pressure relief valve (shown as the icon below) to further check the built-in condition of the pressure relief valve. Under normal circumstances, there will be 2 kinds of failures: The spool O-ring in the pressure relief valve is damaged and needs to be replaced with a new O-RING The spool in the pressure relief valve is stuck by some stuff and the spool needs to be removed for cleaning. According to the above steps, you can check clearly that the melamine tableware compression machine can work normally, pressurize and release pressure.

Jun 15, 2020

Decal paper is used for melamine crockery decoration. Melamine paper is put with design and glazing powder to make crockery shinning, more attractive and more creative in design. Melamine decal paper can be cut into any shapes, according to the special design concept. Melamine Decal Paper plays an important role in the creation of new sales for melamine tableware. So, how to use the Melamine Decal Paper on the melamine plate, melamine bowls? • There are different thicknesses of decal paper: 40GSM /42GSM/60GSM and normally, 40GSM is the most popular thickness. If you need to put the decal paper for high classic & high-quality melamine tableware, then Taiwan paper will be a nice choice. If not such white powder, like cream powder, then Chinese paper is the hot sales, because of its accepted quality at a reasonable cost. (For the paper quality, we may discuss by another detailed article.) • After choosing the paper, then need to cut the size to match the size of your printing machine. If you do not have the printing equipment, then the paper design factory will cut the paper size accordingly for your need. • The paper will be printed with your selected flowers and then go for drying. After the ink is dry, then this Melamine Decal Paper will be packed for delivery to your factory. • When the melamine decal paper is ready, you cannot use them directly. These decal paper needs to be covered with the shinning powder on, which is called glazing powder for foil paper. This glazing powder needs to be mixed with high temperature boiled hot water; the ratio to mix the powder with water should be properly. • Then this Melamine Decal Paper with wet glazing powder should go for drying again. Some factories dry them naturally, under clean space, no dust. But it will occupy more space to hang these papers together. So, big factories would like to run the electric decal paper drying machine, which can dry the paper fast and improve its quality as well. • When the Melamine Decal Paper is dry, this paper needs to be cut again according to its flower shape. Recently there are also 2 ways to cut the paper. 1. One is by cutting by hand. Manual cutting will take more time. Only experienced workers can work fast. 2. The other way is by cutting machine. Of course, the machine could work fast, and it spends less cost. • After cutting, the Decal Melamine Paper with flowers needs to be joined together, for the bowls, or glass, which these papers are not fully circled. Nowadays, there are also 2 ways to join the paper. 1. One is joined the paper by hand, and need to use glue. 2. One is joined with the decal paper bonding machine, without glue. Shunhao Company not only sells the melamine machines & melamine moulds for melamine tableware factories but also supplies experienced service and technical support for you. Contact: Email: machine@hognancn.com Whats-app : 0086 15905996312 Service sales: Mrs.Shelly

Jun 10, 2020

Shunhao Company’s melamine crockery molding machine uses 1-on-1 circuit wiring method, that means the electrical box microcomputer input signal and the output signal has its own name, and also have their own functions and lights, so just check whether the respective signal lights are on when they are triggered, to confirm whether the electrical components are normal or damaged. The following are examples to make it clear. Input signal: 1. Press “MOTOR START”, then No.4 light upper line of PLC should work; If not light, then check whether it is under Manual way or the button is damaged or broken off wire; 2. Take an iron bar before (Rising limited) approaching switch, then No.17 light of PLC should work; If not light, change the approaching switch or check the X17 wire broken off. Input signal: PLC output, because of its lower resistance - current, first start the relay and then use relay to start hydraulic valves or electromagnetic contactor. Note: PLC lower part is LX voltage (relay coil is DC24V), R on the relay board and Y0-Y12 is AC220V. DO NOT connect “COM” with Y0-Y12. Input signal: 1. Press , the No. 0 light upper line of PLC should work, If not light, then check whether r the thermal relay is tripped or damaged, or the Y0 wire is broken or off 2. Connect the lower end of the PLC with a wire, and , the second relay of the lower left relay board (upper LEI) lights up, and the corresponding oil pressure valve indicator lights up. If no work, please replace the blue relay or check whether the wire is broken or off. The following is a description of the input and output signals: X0 MANUAL / AUTO Y0 MOTOR X1 CURING /MAUNAL FAST-DOWN SWITCH Y1 DOWN-VALVE X2 PATTERN SWITCH Y2 UP - VALVE X3 GLAZING SWITCH Y3 MID-PRESSURE VALVE X4 MOTOR SWITCH Y4 HIGH -PRESSURE VALVE X5 RETURN MOLD SWITCH Y5 LOW-PRESSURE VALVE X6 SECOND COLOR SWITCH Y6 PRESSURING VALVE X7 MANUAL FAST-UP Y7 GUIDING RELIEF VALVE X10 MANUAL FAST-DOWN X11 MANUAL SLOW-UP Y10 BACK PRESSURE MAGNETIC VALVE X12 SLOW-DOWN LIMIT Y11 PRE-FILL VALVE X13 DOWN STOP LIMIT Y12 CURING TIMING X14 CURING SLOW-UP LIMIT Y13 MOLDING MOVING X15 PATTERN SLOW-UP LIMIT Y14 BACK UP X16 STAYING LIMIT Y15 BACK UP X17 UP-STOP LIMIT / EMERGENCY STOP Y16 BACK UP X20 Y17 BACK UP X21 X22 X23 X24 X25 X26 X27 GLAZING SLOW-UP LIMIT Tip:Automatic melamine molding machine with PLC system is easier to check and maintenance, WHY? Because of this Input or Output signal from PLC will tell you which action is not proper from PLC lights showing. When the case happening, just check the PLC lights or send pictures to us, Shunhao Engineers team could check for your machine accordingly.

Jun 08, 2020

For tableware manufacturers, a melamine tableware molding machineis indispensable. As melamine tableware is becoming more and more popular with various designs that can be selected. Many tableware manufacturers will choose to bring in automatic melamine tableware equipment. However, how to run and maintain the melamine molding machines properly and safely? Still many tableware factories have such questions after their running machines a long time. The following 7 tips could be helpful for you. 1. During the operation of the machine except when necessary, should try not to develop a hand as an aid operation. 2. Memorize the position of the emergency stop switch. 3. The worker should wear short-sleeved or sleeveless tight clothes, especially avoid wide sleeves dragon costumes. 4. If necessary checking, should first power-off the machine and then check. 5. Troubleshooting should be an expert or technician whom. 6. Keep the surrounding environment clean, traces of oil, in particular, should prevent any inadvertent from ground. 7. In case when a lot of oil spill stains the ground, first wiped with a lot of grease, then the ground can be covered with slippery layer of sawdust or salt, lime to prevent slippery. If you still have some questions on the safety using for Melamine Dinnerware Compression Machine or you need some help for operation, please feel easy to contact us. Email: machine@hongancn.com Whatsapp: +86 15905996312