Dear Customers:
Thank you for choosing our products, for your safety and benefit, please carefully read the manual and all the information before using. If you do not follow the manual and cause any personal injury, property or other losses, our company will not be liable. Our company mainly produces and sells hot press, cold press, frame assembly machine, board-jointing machine, lifter, tenoner, circular saw and other woodworking machinery. We can also manufacture all kinds of machines according to customers’ requirements. Our company always insists the quality policy of “consumers are supreme, quality assurance”, carries out the marketing principle of pre-sales assist planning, test-run demonstration and lifelong after-sales service. We welcome all the customers to consult and purchase.
PREFACE ★ Before you use the hydraulic cold press at the first time, please note the following tips: ● The operator should go through related technical training, or be guide
by professional. ● This manual will help you understand the machine and guide you safe operation. ● This
manual contains a lot of important tips for safety, economy and
operation. If you follow these tips, not only can avoid the risk of accidents, lower maintenance costs, reduce parking maintenance time, but also can improve reliabilityand service life of the machine. ● The manual should be properly stored for convenient access.
★ It is recommended that every staff associated with the machine should read this manual, for example: ● Operators, including the staff who for assembly, troubleshooting, clean,
machine maintenance and waste treating. ● Repair and debugging personnel. ● Transportation personnel.
CONTENTS 1. Brief introduction 2. Operation cautions 3. The main components of hydraulic cold press 4. Storage 5. Description of components 6. Installation and operation 7. Faults and solutions 8. Maintenance
2. Operation cautions 1. Must read the manual in detail to understand the performance and correct operation methods before operating. 2. The machine must be connected to the reliable grounding device before connecting to power supply. 3. The machine power cord must be connected to the power supply with protective switch, check the power supplyvoltage and frequency. 4. Before
operating the machine, please make sure the motor rotation
direction is correct, otherwise, it needs to changethe wiring position of power supply phase lines. 5. Before operating the machine, check that all safety devices are working
properly, the components are not loose and damaged, or you should adjust and change it promptly to ensure its normal function. And remember to remove all thetools. 6. When operating the machine, the operators are required to wear tight
clothes, never wear loose clothes, neckties, watches, bracelets, etc., the long hair operators are required to wear working cap. 7. When machine is running, all security guards are not allowed to remove or open. 8. When machine is running, the operator is prohibited to leave working post. 9. Strictly forbid to process the workpiece and accessories beyond the original
design features of the machine. 10. Poor health or drunk is forbidden to operate the machine. 11. Make sure the main power is off before inspecting, maintaining and cleaning the machine. 12. Must cut off the main power after operating, and do not leave until the machine stops running completely.
3. The main components of hydraulic cold press The main components: oil hydraulic system, electrical control system, press plate and machine body.
Oil hydraulicsystem
Press plate
Machinebody
Oil hydraulic system: it consists of oil cylinder, fuel tank, oil pump, oil pump motor, control valves and pressure gauge. The fuel tank is filled with oil, it achieves oil pumping by electric drive pump, and transports the oil to oil cylinder by pipeline, so that the oil cylinder can work. The overflow valve can make the workpiece generate backpressure in pressing process and maintain steady. The electromagnetic valve ball is used to maintain the system setting pressure; the pressure gauge is used to show the pressure. Electrical control system: it consists of main circuit and control circuit, the circuit uses automatic circuit breaker, fuse, AC contactor to carry out overload, short circuit and under voltage protection for press motor, solenoid valve, etc. Press plate balance mechanism: it consists of balance lifting rack, lifting gear, rotation axis. The machine is equipped with fixed rotating bearing components, two balance racks (right and left). The both ends of rotating shafts are equipped with lifting gears and bearings, so that the rotation axis can rotate flexibly.
Press plate: it consists of the upper press plate and the lower press plate. Both press plates are welded by section barsand steel plates, the working plane is processed by large gantry milling machine to ensure it smooth. The upper press plate is connected with the cylinder rod, realizing press plate lifting by lifting cylinder. The lower press plate can be welded directly on the machine base, making the structure of machine fastened. Machine body: it is welded by steel plate, the structure is compact and strength is good. 4. Storage To prolong the life of the press, please do not: put in damp places, vibrate severely. Machine transportation and load & unload
It is generally the overall transport, but if it needs to disassemble the oil cylinder to transport because of the height, you can remove the bolts on the flange, and pull the cylinder barrel down, then fix two oil cylinders with a batten or iron bar, which protects two oil cylinders from waggling during transportation to result in any damages. At last, pack the press well. It is forbidden to place inclining to one side when loading.
5. Description of components Distribution box
B
E/F
A——Thermal relay, control oil pump motor, carry out overload protection of oil pump motor. B——Control circuit power transformer. C——AC contactor, control oil pump motor, carry out the loss of pressure and zero- voltage protection of oil pump motor. D——Circuit breaker, short circuit or overload control. E、F—Intermediate relay, power supply and pressure maintaining time control. G——Fuse.
Control panel
A——Pressure gauge with electric contact. Red pointer is the working pressure setting pointer; green pointer is the pressuremaintaining setting pointer; black pointer is the pressure display pointer. B——Pressure maintaining time relay, there are three kinds of time setting modes to choose from: hour (h), minute (m), second (s). The maximum time for each mode can only be set to: 99.99. C—Automatic switch. D—Start. E——Press plate pressing switch, press down the plate will decline, press it again to stop the plate declining. F——Press plate loosening switch, press down the plate will rise, press it again to stop the plate rising. G——Stop switch, stop workbench lifting. H——Emergency stop switch, no matter what state the machine is, press the switch, all actions will stop.
6. Installation and operation The placement of machine
(1) Place the machine on the flat and hard ground, and adjust the machine to horizontal position. (2) Power distribution Connect voltage, electric current and frequency-dependent power to the head of the machine power outlet according tothe power distribution requirements on electric box. (3) Confirm the oil cylinder motor turning in the right direction. Press the power start button, and press the press plate pressing button, if the press plate is pressing down (if the cylinderis lowered, then the cylinder rises), then the turning direction of oil cylinder motor is correct. Otherwise, you should change over two lines of the three-phase power supply cord to get correct turning direction. Oil cylinder reset If the oil cylinder stops declining before transportation, then reset the oil cylinder and fix it after power distribution: A: Remove the batten and package fixing between two oil cylinders. B: Turn the power on. C: Press the dropping button, the oil cylinder will rise automatically; if the oil cylinder doesn’t work because of wrong power phase and motor reversal, when the oil cylinder flange rises to about 3mm from the roof, press the stop button to stop the oil cylinder rising, then tighten each flange and bolt.
(4) Pressure retaining time setting You can set the pressure retaining time according to actual demand. A: Choose the time mode: “hour (h), minute (M), second (S)”. B: Set the required number by four digits"0-9": If you choose the time mode is "h", the set value is: “9999”, the actual pressure retaining time is "99.99" hours; if the value is “0003”, the actual pressure retaining time is "0.03" hours; if the value is “0905”, the actual pressure retainingtime is "9.05" hours (If the time mode is set to " M" or " S", then the "hour" is changed to "minute" or "second"). C: The maximum time value can be set to "99.99 hours". D: After time up, the buzzer will ring, it is suggested that the workpiece has been completed pressurizing. E: Prohibit setting the time to "0000".
(5) The placement of workpiece Before pressing the workpiece, it must be based on the actual size and height of the workpiece to select the correct placement, strictly prohibit pressurizing the workpiece inclining to one side or uneven. Before operating this machine, you should carry out a comprehensive and detailed examination to ensure safe operation: (1) Check all safety guards are correct and reliable. (2) Check the transmission components and connecting components. (3) Check the pressure of hydraulic system. (4) Check if the oil pump rotation direction is correct. (5) Check if the lifting action is flexible and reliable. (6) Finally, operate the empty machine once, confirm whether the entire
operation process is correct. Put the workpiece with correct method -------- →set the pressure according to the area of workpiece →set pressure retaining time by adjusting the time relay “B” -------→press the pressing button “E” →after compressing the workpiece and reaching the set pressure, the pressure retaining relay starts counting, the press plate will rise automatically when counting is completed - ----------------------------------------→remove the compressed workpiece, if you do not need the pressure retaining time, then adjust time relay "H" to "9999" before pressing.
7. Faults and solutions When checking out the faults listed in the following table, you can make a preliminary reference to the solutions, if still can not solve, you should ask manufacturer for technical support.
Faults
Causes
The total power or controlpower is turned off.
The machine can
Solutions
Turn on power switch.
Lack of one phase.
Check and correct.
Circuit breaker is not closed.
Open electrical box and close the circuit breaker.
Contactor is not working orthermal relay is off.
Check whether the circuit is open or overload, and repair.
The control solenoid valveof hydraulic system is broken.
Replace the solenoid valve.
Poor contact of pressure gauge contactor.
Overhaul
Intermediate relay is broken.
Replace the intermediate relay.
not go up and downwhen press the pressing switch or loosening switch.
The machine is loss Short circuit or of power and circuitbreaker shutdown suddenly tripped. when working.
Overload results in circuit relay disconnecting.
Check if the motor insulation is qualified, if the machine is installed with ground wire. Close the circuit breaker. Check the circuit and reset thethermal relay.
Upper workbench is unbalanced.
Lifting gear and balance
Adjust the gear and balance rack.
rack cause dislocation. The flange screw of oil
Fasten the flange screw.
cylinder is loose.
The bearing bases at both ends of the
Upper press plate is unbalanced.
balance rack are
Adjust the lifting rack and lifting positioning roller to balance the press plate.
often broken.
Pipe joint leaks.
Joint is loose.
Re-wrap Teflon tape and tighten the joint.
Pressure retaining valve or electromagnetic ball valve Can not retain pressure.
is broken.
Check and replace the corresponding valve.
The oil leaks.
Overhaul
Oil pump is broken.
Replace the oil pump.
Can not start the motor.
8. Maintenance A. Daily maintenance (1) Keep the machine clean, each transmission component and turning connection point
should be kept lubricated. (2) It is forbidden to pile up sundry on the machine. (3) Check the screw fastening the oil cylinder flange and the cylinder rod and press plate
flange every day, if loose, thentighten it in time. (4) Check the oil line every day, repair it in time if leakage. (5) Check the oil in the fuel tank every week: replace the dirty oil in time; and fill the fuel
tank when lack of oil. (6) Check the service condition of positioning roller and lifting pinion, rack of press plate every day.
B. Operating maintenance (1) Operate the machine with correct method, it is forbidden to process
the workpiece beyond the scope of the originaldesign. (2) Put the workpiece with correct method, it is forbidden to pressurize in
the situation of inclining to one side or uneven. C. Overhaul period (1) Each transmission component and safety device of the machine should be checked before processing. Check if the machine is flexible and reliable in every operation. (2) Once overhaul a month, focus on the service condition of the components
inside the electrical box and other stroke limit switches. Check the lubrication and wear of transmission components, the security situation of each safety protection assembly, adjust or replace. (3) Check the using of oil cylinder, oil, hydraulic system, check if the oil
must be replaced, if the oil line connectionleaks, if the system pressure is normal, etc. Maintenance of storage (1) If the machine is not in use, it should be kept clean, coat with lubricating oil to D.
the transmission components and packit well. (2) The machine should be placed in dry and ventilated room, avoid direct sunlight and rain.
E. The selection of hydraulic oil:
ISO-VG68# MOBIL：DTE26 antiwear hydraulic oil CALTEX： HD68 antiwear hydraulic oil Esso： NUTO H68 antiwear hydraulic oil SHELL： TELLUS OLL68 antiwear hydraulic oil CALTEX：Meropa68,CALTEX：Multlfak Ep2 F. The selection of balance gear bearing lubricating oil: calcium-based greaseor: CALTEX： Meropa68, CALTEX：Multlfak Ep2