CN104862465A - PLC-controlled large-scale circular saw blade multi-oil-cylinder hot-pressing tempering furnace - Google Patents
PLC-controlled large-scale circular saw blade multi-oil-cylinder hot-pressing tempering furnace Download PDFInfo
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Abstract
The invention relates to the technical field of heat treatment equipment, in particular to a PLC-controlled large-scale circular saw blade multi-oil-cylinder hot-pressing tempering furnace. According to the PLC-controlled large-scale circular saw blade multi-oil-cylinder hot-pressing tempering furnace, a tempering upper pressure plate, a tempering lower pressure plate, a portal frame walking mechanism, a PLC electronic control system and a touch screen are arranged; the flow of each oil cylinder is controlled by the PLC electronic control system, so that the stroke of the oil cylinders can be synchronous; the pressure of the oil cylinders can be changed with the furnace temperature. Through the adoption of the tempering furnace, the problems of poor flatness of tempered saw blades, unchanged pressure of the oil cylinder in the tempering process, and low automatic degree of the tempering manner which are caused by poor heat treatment tempering quality are solved, so that the heat treatment tempering quality is improved, tiny cracks of the saw blades are avoided, the energy consumption in a heat treatment tempering process is reduced, the automatic degree of the heat treatment tempering process is improved, and the work environment is improved.
Description
Technical field
The present invention relates to technical field of heat treatment equipment, specifically a kind of PLC controls large saw-disc Multi-cylinder hot pressing tempering stove.
Background technology
Large-diameter circular saw blade refers in particular to the diamond circular saw film base body of diameter 2600 millimeters to 5200 millimeters here.Diamond segment in the welding of the outer ring of diamond circular saw film base body, just becomes diamond disc.Large-scale diamond disc is the important tool of material mine exploitation and large-stone plate cutting, uses more prevalent, and diamond circular saw film base body is the basis manufacturing diamond disc, and the quality of matrix directly affects the use properties of diamond disc.Thermal treatment is one of critical process manufacturing diamond circular saw film base body, the quality of tempering heat treatment quality directly affects the technical parameters such as the planeness of saw bit matrix, the numerical value of saw blade internal stress and distribution, and this is directly connected to the functional quality of subsequent handling operation complexity and diamond disc.
The visual plant tempering heat treatment stove manufacturing large saw-disc particularly 5.2 meters of saw blades receives much attention, and the large-diameter circular saw blade tempering stove used at present also exists some shortcomings:
1. at present also not used for the hot pressing tempering stove of tempering maximum diameter 5.2 meters of saw blades.
2. have one to use box hot pressing resistance tempering stove, fire door is arranged on the front end face of casing.Saw blade is come out of the stove and the fork of fork truck will be used to choose, saw blade be pendency in one end of fork truck, the diameter of saw blade is larger, the center of gravity of saw blade from fork truck more away from, therefore the tempering saw blade diameter of chamber type annealing stove is not too large, and the saw blade that diameter is 3 meters is come out of the stove very difficult.
Usual box hot pressing tempering stove uses single oil cylinder press tempering platen, oil cylinder is placed on the center of tempering platen, such compression mode is that the center pressure of platen is large, and it is little at the outward flange pressure of platen, this easily causes the Pingdu after the tempering of saw blade overproof, and the larger this phenomenon of diameter of saw blade is more remarkable.
Use Multi-cylinder hot pressing to relate to oil cylinder stationary problem, the more stationary problems of oil cylinder are more outstanding, also do not use the hot pressing tempering stove of multiple oil cylinder at present.
3. also have one to be use well formula tempering stove, saw blade is placed between upper and lower two tempering platens, with bolt, the edge of two platens is clamped, put into tempering stove and carry out tempering.When saw blade tempering is come out of the stove, tempering platen is hung out outside stove, looser a bolt when platen is cooled to room temperature, dismantle platen, take out saw blade.The deficiency of this tempering mode is: two tempering platens will heating and cooling repeatedly, cause energy dissipation; And the level of automation of this tempering mode is low, the labour intensity of operative employee is large.
4. the automatization integrated level of current saw blade hot pressing tempering is low, not yet there is the Multi-cylinder hot pressing tempering stove being used for hot pressing tempering large saw-disc, also do not have too many levels to adopt PID control techniques, PID closed-loop control is carried out to parameters such as the flow of oil cylinder, pressure and furnace temperature.
5. the material of large-scale diamond circular saw film base body typically uses the materials such as 75Cr, 70MnCr, 70Mn, 8MnSi.Saw blade tempering heat treatment is first quenched by saw blade, and the hardness after quenching is greater than HRC60, and then produce phase transformation through tempering, the hardness after tempering is reduced to HRC42-46.Although large-scale diamond disc flattens through flatting mill in quenching process, but because the area of saw blade is large, the factor affecting saw blade quenching roughness is many, and the saw blade roughness after quenching is still larger, also needs the planeness improving saw blade through tempering more further.
The hot pressing tempering stove oil cylinder working-pressure of current use is not strengthen gradually with the rising of furnace temperature, but the pressure of oil cylinder is constant in whole drawing process.Because the quenched martensite fragility produced after quenching is larger, the metallographic structure of saw blade of tempering initial stage does not also undergo phase transition, if the pressure of oil cylinder is larger at the very start, easily makes saw blade generation fine crack.
At present, not yet have report tempering maximum diameter to be 5.2 meters of saw blades and the hot pressing tempering stove using multiple oil cylinder, those skilled in the art are necessary that developing a kind of PLC controls large saw-disc Multi-cylinder hot pressing tempering stove.
Summary of the invention
Object of the present invention is exactly the deficiency in order to overcome existing tempering stove heat treatment technics, provide a kind of PLC and control large saw-disc Multi-cylinder hot pressing tempering stove, the Pingdu after the saw blade tempering that causes because tempering heat treatment is of poor quality is poor to solve, oil cylinder working-pressure level of automation that is constant and tempering mode is low in drawing process problem.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
A kind of PLC controls large saw-disc Multi-cylinder hot pressing tempering stove, comprises tempering body of heater, tempering bell, portalframe, hydraulic efficiency system; Tempering bottom of furnace body is provided with tempering pressing disc; Tempering bell comprises platen and air-circulating fan in tempering, and air-circulating fan is placed in tempering between platen and tempering bell, and air-circulating fan and tempering bell are connected as a single entity; Portalframe is placed in above portalframe travel mechanism, is provided with rail above portalframe travel mechanism, and rail one end is provided with buting iron; Hydraulic Station is arranged on above portalframe; Hydraulic efficiency system comprises oil cylinder, and oil cylinder is arranged on portalframe, and oil cylinder is evenly distributed on to be made circumferentially with the center of portalframe; Oil cylinder lower end connects oil cylinder heat-resisting extension bar, platen chain connection in the lower end of the heat-resisting extension bar of this oil cylinder and tempering, and the upper end of the heat-resisting extension bar of oil cylinder is flexibly connected with tempering bell; Electric control box is arranged on the column outside portalframe; PLC electrical control system is installed in electric control box; Outside electric control box, touch-screen is installed.
Adopt the present invention of technique scheme compared with prior art: by arranging platen in tempering, tempering pressing disc, portalframe travel mechanism, PLC electrical control system and touch-screen, by the flow of PLC electric control system controls oil cylinder, make oil cylinder stroke synchronous; The pressure controlling oil cylinder changes along with the change of furnace temperature; Thus improve tempering heat treatment quality, avoid saw blade to produce fine crack; Reduce the energy consumption of tempering heat treatment operation; Improve the automatization level of tempering heat treatment operation, improve Working environment.
Preferred version of the present invention is as follows:
At the rodless cavity end of oil cylinder, cylinder magnetostrictive displacement sensor is installed; In cylinder upper cavity oil pressure circuit, pressure transmitter is installed; At tempering stove body side surface, temperature sensor-thermopair is installed.
Portalframe square frame metal construction, bottom is provided with the vertical spacing buting iron of top door frame spacing buting iron vertical with bottom door frame.
Tempering bottom of furnace body is provided with blade clamp, is placed in mid-way above tempering pressing disc, places saw blade in the middle of blade clamp.
The cylindrical structure of tempering body of heater; In tempering, platen, tempering pressing disc are respectively in disc-shaped structure.
On the heat-resisting extension bar of oil cylinder, tempering, the material of platen and tempering pressing disc is heat resisting iron.
The power supply of tempering stove heating connects three-phase alternating current electrical network by solid state relay.
Hydraulic efficiency system is made up of 2 constant flow paddle pumps and drive-motor, 8 oil cylinders, 8 electro-hydraulic proportional throttle valves, 1 electro liquid proportion pressure valve and check valve, equilibrium valve, electromagnetic relief valve, solenoid operated directional valve and pipelines; Preferably choose an oil cylinder in 8 oil cylinders and make oil cylinder as main, other 7 oil cylinders, as slave cylinder, form MS master-slave motor pattern; Hydraulic Station adopts 2 pump of constant delivery type fuel feeding, 1 high-capacity pump and 1 low-capacity pump.
PLC electrical control system comprises as lower module,
Power module, for powering to PLC control system.
Compact type CPU314C-2DP module, is integrated with 24 On-off signal/16 output switch parameter, the lifting of platen in the movement, tempering of the opening/stop of control oil pump motor, portalframe.
Compact type CPU314C-2DP module is also integrated with 5 tunnels analogy amount input/2 tunnels analogy amounts and exports, use 1 tunnels analogy amount input/1 tunnels analogy amount wherein to export, control and the main feedback making oil cylinder actual displacement amount for the main displacement commands of oil cylinder that makes.
FM355C closed loop control module exports with 4 tunnels analogy amounts with 4 tunnels analogy amounts inputs, its given input, feed back input and be continuous simulation signal by the output after internal digital regulates; For controlling electro-hydraulic proportional throttle valve and electro liquid proportion pressure valve, control the synchronous and oil cylinder working-pressure of oil cylinder to reach.
FM355-2S is the module of the analog input/output switch parameter with closed loop adjustment function, this module is stepping and pulse control module, with 4 tunnels analogy amount inputs and 4 passages, 8 output switch parameter, for controlling the on/off of solid state relay, realize the temperature controlling tempering stove.
The maximum diameter of hot pressing tempering stove is 5.2 meters; Input of control commands on touch-screen, Controlling System is divided into manually and control automatically; Non-follow control can control each parts separately; Automatic control, for the production of the control of process, controls the displacement of acid extraction, hydraulic fluid pressure and flow, oil cylinder and shows; Heating-up time, soaking time, slow cooling time, heat preservation pressure in record, display and output drawing process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1 in the present invention;
Fig. 3 is PID closed loop control system figure of the present invention;
Fig. 4 is tempering stove automatic control flow chart figure of the present invention.
code interpreter:
PLC: programmable type logic controller.
PID: closed loop control algorithm.
Embodiment
The present invention is further elaborated for the embodiment provided below in conjunction with Fig. 1 to Fig. 4, but embodiment does not form any restriction to the present invention.
A kind of PLC controls large saw-disc Multi-cylinder hot pressing tempering stove, see portalframe in Fig. 1 and Fig. 2, figure 1, and tempering body of heater 2, rail 3, shelves iron 4, portalframe travel mechanism 5, electric control box 6, temperature sensor-thermopair 7, tempering bell 8, the heat-resisting extension bar 9 of oil cylinder, Hydraulic Station 10, magnetostrictive displacement sensor 11, oil cylinder 12, air-circulating fan 13, platen 14 in tempering, saw blade 15, tempering pressing disc 16, the vertical spacing buting iron 17 of top door frame, the vertical spacing buting iron 18 of bottom door frame, blade clamp 19.
Tempering pressing disc 16 is provided with bottom tempering body of heater 2; Air-circulating fan 13 is placed in tempering between platen 14 and tempering bell 8, and air-circulating fan 13 and tempering bell 14 are connected as a single entity.
Portalframe 1 is placed in above portalframe travel mechanism 5, and portalframe travel mechanism 5 is provided with rail 3 above, and rail 3 one end is provided with buting iron 4.
Hydraulic Station 10 is arranged on above portalframe 1.
Oil cylinder 12 in hydraulic efficiency system is arranged on portalframe 1, and oil cylinder 12 is evenly distributed on to be made circumferentially with the center of portalframe 1; Oil cylinder 12 lower end connects oil cylinder heat-resisting extension bar 9, and platen 14 chain connection in the lower end of the heat-resisting extension bar 9 of this oil cylinder and tempering, the upper end of the heat-resisting extension bar 9 of oil cylinder is flexibly connected with tempering bell 14.
Electric control box 6 is arranged on the column outside portalframe 1; PLC electrical control system is installed in electric control box 6.
Outside electric control box 6, touch-screen is installed.
Wherein, at the rodless cavity end of oil cylinder 12, cylinder magnetostrictive displacement sensor 11 is installed; In cylinder upper cavity oil pressure circuit, pressure transmitter is installed; In tempering body of heater 2 side, temperature sensor-thermopair 7 is installed.
Portalframe 1 square frame metal construction, bottom is provided with the vertical spacing buting iron 17 of top door frame spacing buting iron 18 vertical with bottom door frame.
Be provided with blade clamp 19 bottom tempering body of heater 2, be placed in tempering pressing disc 16 mid-way above, in the middle of blade clamp 19, place saw blade 15.
The cylindrical structure of tempering body of heater 2; In tempering, platen 14, tempering pressing disc 16 are respectively in disc-shaped structure.
On the heat-resisting extension bar 9 of oil cylinder, tempering, the material of platen 14 and tempering pressing disc 16 is heat resisting iron.
The power supply of tempering stove heating connects three-phase alternating current electrical network by solid state relay.
Hydraulic efficiency system is made up of 2 constant flow paddle pumps and drive-motor, 8 oil cylinders, 8 electro-hydraulic proportional throttle valves, 1 electro liquid proportion pressure valve and check valve, equilibrium valve, electromagnetic relief valve, solenoid operated directional valve and pipelines; Preferably choose an oil cylinder in 8 oil cylinders and make oil cylinder as main, other 7 oil cylinders, as slave cylinder, form MS master-slave motor pattern; Hydraulic Station adopts 2 pump of constant delivery type fuel feeding, 1 high-capacity pump and 1 low-capacity pump.
PLC electrical control system comprises as lower module,
Power module, for powering to PLC control system.
Compact type CPU314C-2DP module, is integrated with 24 On-off signal/16 output switch parameter, the lifting of platen in the movement, tempering of the opening/stop of control oil pump motor, portalframe.
Compact type CPU314C-2DP module is also integrated with 5 tunnels analogy amount input/2 tunnels analogy amounts and exports, use 1 tunnels analogy amount input/1 tunnels analogy amount wherein to export, control and the main feedback making oil cylinder actual displacement amount for the main displacement commands of oil cylinder that makes.
FM355C closed loop control module exports with 4 tunnels analogy amounts with 4 tunnels analogy amounts inputs, its given input, feed back input and be continuous simulation signal by the output after internal digital regulates; For controlling electro-hydraulic proportional throttle valve and electro liquid proportion pressure valve, control the synchronous and oil cylinder working-pressure of oil cylinder to reach.
FM355-2S is the module of the analog input/output switch parameter with closed loop adjustment function, this module is stepping and pulse control module, with 4 tunnels analogy amount inputs and 4 passages, 8 output switch parameter, for controlling the on/off of solid state relay, realize the temperature controlling tempering stove.
The maximum diameter of hot pressing tempering stove is 5.2 meters; Input of control commands on touch-screen, Controlling System is divided into manually and control automatically; Non-follow control can control each parts separately; Automatic control, for the production of the control of process, controls the displacement of acid extraction, hydraulic fluid pressure and flow, oil cylinder and shows; Heating-up time, soaking time, slow cooling time, heat preservation pressure in record, display and output drawing process.
SIMATIC S7-300 programming software STEP7, touchscreen configuration software WinCC flexible.
Fig. 3 is 3 PID closed-loop control schematic diagram that tempering stove electrical system and hydraulic efficiency system combine: have the displacement synchronous PID closed-loop control of oil cylinder, the pressure P ID closed-loop control of oil cylinder and tempering stove Heating temperature PID closed-loop control in figure.
In figure: dotted line represents the oil circuit of hydraulic efficiency system; Fine line represents the pilot circuit of electrical control system.
Solenoid operated directional valve 1 is three-position four-way electromagnetic directional valve.
Equilibrium valve 2, when hydraulic ram 8 drags platen decline in tempering, produces the weight of platen, bell, fan in back-pressure balance cylinder rod, the heat-resisting extension bar of cylinder rod, tempering at the rod chamber of oil cylinder, prevent the decline of weight hypervelocity from having an accident.
The throttle circuit that one-way throttle valve 3 forms, realizes oil cylinder oil inlet and oil return is two-way carries out throttle grverning.
Pressure transmitter 4 is piezoresistive transducer, uses the standard signal that 4-20mA or 0-10V exports.
Electro liquid proportion pressure valve 5 is the pilot-operated type electro liquid proportion pressure valve of not charged feedback, for control loop pressure.
Electro-hydraulic proportional throttle valve 7 is pilot-operated type electro-hydraulic proportional throttle valve, and it and 4 check valves 6 form bridge type return, realizes the speed setting of oil cylinder rising and the two kinds of operating modes that decline.
Oil cylinder 8 select tailpiece of the piston rod be threaded, oil cylinder central flange connect structure.
The displacement sensor 9 on oil cylinder top, selects cylinder device for sensing linear displacement caused by magnetostriction, exports the standard signal using 4-20m or 0-10VA.
The oil supply system of hydraulic pressure is made up of 2 constant flow paddle pumps, 1 large discharge low pressure pump+1 small flow high pressure power pump.During oil cylinder pressurize, large discharge low pressure pump shuts down.
The synchronous PID of oil cylinder telescopic displacement controls: the instruction of the electro-hydraulic proportional throttle valve aperture of manual input control oil cylinder velocity of displacement on the touchscreen, via MPI bus transfer to CPU314C-2DP, 4-20mA or 0-10V standard signal is exported by the analog output of CPU, after proportional amplifier power magnification, drive the proportion electro-magnet of electro-hydraulic proportional throttle valve, control the aperture of electro-hydraulic proportional throttle valve, regulate the movement velocity of actuating cylinder.And the motion of 7 slave cylinders is the PID control of following actuating cylinder motion, its Setting signal is from the magnetostrictive displacement sensor of actuating cylinder electro-hydraulic proportional throttle valve, and feedback signal is from the magnetostrictive displacement sensor of each slave cylinder.Setting signal and feedback signal are input to FM355C closed loop control module, FM355C module exports 4-20mA or 0-10V simulating signal through PID arithmetic, after proportional amplifier power magnification, drive the proportion electro-magnet of the electro-hydraulic proportional throttle valve of slave cylinder, regulate the translational speed of slave cylinder.
The PID of furnace temperature controls: set tempering temperature value on the touchscreen, CPU314C-2DP and FM355-2S be voltage pulse output signal after PID arithmetic, control the ON/OFF of solid state relay, control the length of solid state relay conduction time, and then control the time of heating.Measured the temperature of tempering stove by thermocouple temperature sensor, temperature participates in PID arithmetic after FM355-2S process.The composition such as CPU314C-2DP, FM355-2S, solid state relay, heating unit, temperature sensor-thermopair Cryocooler Temperature Closed Loop Control System.
The PID of oil cylinder working-pressure controls: the pressure of hydraulic efficiency system progressively boosts to rated value according to the actual value of furnace temperature when heating up, the set-point of pressure sets in a program, the feedback signal of force value is provided by pressure transmitter, be input to module FM355C, deviation through the controller of module calculates, setter calculate, controller output function value to proportional amplifier, through power amplifier amplification after, control the proportion electro-magnet of electro liquid proportion pressure valve, the pressure of hydraulic control system.
FM355C and FM355-2S module, at random with tool software, after setting tool software, carries out Hardware configuration, parameter setting by STEP7 programming software.The standard feature block establishment provided by tool software is for the application program of control FM355C and FM355-2S.Standard feature block calls in disconnected tissue block OB35 in the circulating cycle, periodically timing performs the PID arithmetic program of closed loop control system, at this, cycling time of cycle interruption tissue block OB35 is set to 100ms, gathers 1 secondary data every 100ms, and export controling parameters.Starting the initialization operation that CPU is set in disrupt tissue block OB100.
PLC control system gathers various relevant switching value and analog signals passes to CPU; By I/O and the PID closed loop control function module of CPU, analyzing and processing is carried out to signal; Operating parameter and real-time display parameter are on the touchscreen calculated according to initiation parameter and acquired signal; The analog signals of output control oil cylinder, heating unit and on-off model; Output alarm information and process information.
Fig. 4 is saw blade tempering automatic control flow chart figure.Saw blade 15 is hung in stove, then manually touches " the automatically running " button pressed on touch-screen, enter tempering automatic control program; Portalframe 1 drives tempering bell 8 to move to right together, and when tempering bell 8 aims at tempering body of heater 2, right limit travel switch cuts off portalframe 1 walking circuit, and portalframe 1 moves and stops and automatically start hydraulic pressure double pump system simultaneously; Oil cylinder 12 declines automatically, and enter oil cylinder 12 and to decline synchronization control program, synchronous control accuracy is 0.5mm, when oil cylinder 12 deviation that declines is shut down more than during 5mm, enters manual setting oil cylinder 12 deviation.When oil cylinder 12 drop to make that in tempering, platen 14 presses saw blade 15 and compresses saw blade 15 time, when hydraulic fluid pressure rises to the dwell pressure of setting: the large pump of hydraulic efficiency system stops, air-circulating fan 13 on tempering bell 8 starts, the electrical heating element electrified regulation of tempering stove, intensification timing register start timing; When furnace temperature rises to the holding temperature of setting: intensification timing register stops timing, insulation timing register starts timing; When being incubated timing and reaching the time of setting: insulation timing register stops timing, slow cooling timing register starts timing, electrical heating element stops power transmission; When slow cooling timing then: slow cooling timing stops, bell air-circulating fan 13 stops, the large pump of hydraulic pressure is opened, oil cylinder 12 rises, and enters oil cylinder 12 rising synchronous sequence of control, and oil cylinder 12 rising synchronous sequence of control and oil cylinder 12 synchronisation control means that declines is identical; When oil cylinder 12 rises to upper limit site, the magnetostrictive displacement sensor 11 in-built by oil cylinder 12 sends signal: stop oil cylinder 12 to rise, stop hydraulic double-pump, start the portalframe 1 that moves to left; Portalframe 1 moves to left to left limit travel switch, and portalframe 1 moves stopping, tempering automatic control program end of run; Now can come out of the stove by handling saw blade 15.This process is a complete saw blade drawing process.
Those skilled in the art do not depart from essence of the present invention and spirit, kinds of schemes can be had to realize the present invention, the foregoing is only the better feasible embodiment of the present invention, not thereby interest field of the present invention is limited to, the equivalent structure change that all utilizations specification sheets of the present invention and accompanying drawing content are done, is all contained within interest field of the present invention.
Claims (10)
1. PLC controls a large saw-disc Multi-cylinder hot pressing tempering stove, comprises tempering body of heater, tempering bell, portalframe, hydraulic efficiency system, it is characterized in that: tempering bottom of furnace body is provided with tempering pressing disc; Tempering bell comprises platen and air-circulating fan in tempering, and air-circulating fan is placed in tempering between platen and tempering bell, and air-circulating fan and tempering bell are connected as a single entity; Portalframe is placed in above portalframe travel mechanism, is provided with rail above portalframe travel mechanism, and rail one end is provided with buting iron; Hydraulic Station is arranged on above portalframe; Hydraulic efficiency system comprises oil cylinder, and oil cylinder is arranged on portalframe, and oil cylinder is evenly distributed on to be made circumferentially with the center of portalframe; Oil cylinder lower end connects oil cylinder heat-resisting extension bar, platen chain connection in the lower end of the heat-resisting extension bar of this oil cylinder and tempering, and the upper end of the heat-resisting extension bar of oil cylinder is flexibly connected with tempering bell; Electric control box is arranged on the column outside portalframe; PLC electrical control system is installed in electric control box; Outside electric control box, touch-screen is installed.
2. PLC according to claim 1 controls large saw-disc Multi-cylinder hot pressing tempering stove, it is characterized in that: be provided with cylinder magnetostrictive displacement sensor at the rodless cavity end of oil cylinder; In cylinder upper cavity oil pressure circuit, pressure transmitter is installed; At tempering stove body side surface, temperature sensor-thermopair is installed.
3. PLC according to claim 1 and 2 controls large saw-disc Multi-cylinder hot pressing tempering stove, and it is characterized in that: portalframe square frame metal construction, bottom is provided with the vertical spacing buting iron of top door frame spacing buting iron vertical with bottom door frame.
4. PLC according to claim 1 and 2 controls large saw-disc Multi-cylinder hot pressing tempering stove, it is characterized in that: tempering bottom of furnace body is provided with blade clamp, is placed in mid-way above tempering pressing disc, place saw blade in the middle of blade clamp.
5. PLC according to claim 1 and 2 controls large saw-disc Multi-cylinder hot pressing tempering stove, it is characterized in that: the cylindrical structure of tempering body of heater; In tempering, platen, tempering pressing disc are respectively in disc-shaped structure.
6. PLC according to claim 1 and 2 controls large saw-disc Multi-cylinder hot pressing tempering stove, it is characterized in that: on the heat-resisting extension bar of oil cylinder, tempering, the material of platen and tempering pressing disc is heat resisting iron.
7. PLC according to claim 1 and 2 controls large saw-disc Multi-cylinder hot pressing tempering stove, it is characterized in that: the power supply of tempering stove heating connects three-phase alternating current electrical network by solid state relay.
8. PLC according to any one of claim 1 to 7 controls large saw-disc Multi-cylinder hot pressing tempering stove, it is characterized in that: hydraulic efficiency system is made up of 2 constant flow paddle pumps and drive-motor, 8 oil cylinders, 8 electro-hydraulic proportional throttle valves, 1 electro liquid proportion pressure valve and check valve, equilibrium valve, electromagnetic relief valve, solenoid operated directional valve and pipelines; Preferably choose an oil cylinder in 8 oil cylinders and make oil cylinder as main, other 7 oil cylinders, as slave cylinder, form MS master-slave motor pattern; Hydraulic Station adopts 2 pump of constant delivery type fuel feeding, 1 high-capacity pump and 1 low-capacity pump.
9. PLC according to claim 8 controls large saw-disc Multi-cylinder hot pressing tempering stove, it is characterized in that: PLC electrical control system comprises as lower module,
Power module, for powering to PLC control system;
Compact type CPU314C-2DP module, is integrated with 24 On-off signal/16 output switch parameter, the lifting of platen in the movement, tempering of the opening/stop of control oil pump motor, portalframe;
Compact type CPU314C-2DP module is also integrated with 5 tunnels analogy amount input/2 tunnels analogy amounts and exports, use 1 tunnels analogy amount input/1 tunnels analogy amount wherein to export, control and the main feedback making oil cylinder actual displacement amount for the main displacement commands of oil cylinder that makes;
FM355C closed loop control module exports with 4 tunnels analogy amounts with 4 tunnels analogy amounts inputs, its given input, feed back input and be continuous simulation signal by the output after internal digital regulates; For controlling electro-hydraulic proportional throttle valve and electro liquid proportion pressure valve, control the synchronous and oil cylinder working-pressure of oil cylinder to reach;
FM355-2S is the module of the analog input/output switch parameter with closed loop adjustment function, this module is stepping and pulse control module, with 4 tunnels analogy amount inputs and 4 passages, 8 output switch parameter, for controlling the on/off of solid state relay, realize the temperature controlling tempering stove.
10. PLC according to claim 1 controls large saw-disc Multi-cylinder hot pressing tempering stove, it is characterized in that: the maximum diameter of hot pressing tempering stove is 5.2 meters; Input of control commands on touch-screen, Controlling System is divided into manually and control automatically; Non-follow control can control each parts separately; Automatic control, for the production of the control of process, controls the displacement of acid extraction, hydraulic fluid pressure and flow, oil cylinder and shows; Heating-up time, soaking time, slow cooling time, heat preservation pressure in record, display and output drawing process.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106001769A (en) * | 2016-07-18 | 2016-10-12 | 成都市壹佰刀具有限公司 | Production process of saw web base body |
| CN107267733A (en) * | 2017-08-18 | 2017-10-20 | 山东黑旋风锯业有限公司 | A kind of saw blade tempering furnace |
| CN108018406A (en) * | 2018-01-04 | 2018-05-11 | 沧州巨擎汽车配件有限公司 | Pressurization well formula tempering smoothing stove in a kind of thorax |
| CN109235149A (en) * | 2018-10-19 | 2019-01-18 | 吉特利环保科技（厦门）有限公司 | A kind of pulp mould dehydration shaping device |
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| CN1123332A (en) * | 1994-11-24 | 1996-05-29 | 山东工业大学 | Alignment and tempering device for large saw-disc |
| CN103981354A (en) * | 2014-05-30 | 2014-08-13 | 成都市壹佰刀具有限公司 | Dynamic pressurized tempering furnace for tempering saw blade matrix and tempering process |
| CN204737992U (en) * | 2015-06-22 | 2015-11-04 | 河北星烁锯业股份有限公司 | PLC controls large -scale many hydro -cylinders of saw blade hot pressing tempering furnace |
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| CN106001769B (en) * | 2016-07-18 | 2017-09-29 | 成都市壹佰刀具有限公司 | A kind of production technology of saw bit matrix |
| CN107267733A (en) * | 2017-08-18 | 2017-10-20 | 山东黑旋风锯业有限公司 | A kind of saw blade tempering furnace |
| CN108018406A (en) * | 2018-01-04 | 2018-05-11 | 沧州巨擎汽车配件有限公司 | Pressurization well formula tempering smoothing stove in a kind of thorax |
| CN109235149A (en) * | 2018-10-19 | 2019-01-18 | 吉特利环保科技（厦门）有限公司 | A kind of pulp mould dehydration shaping device |
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