CN107558079B - Chain quantitative intelligent oil supplementing system of heat setting machine - Google Patents
Chain quantitative intelligent oil supplementing system of heat setting machine Download PDFInfo
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- CN107558079B CN107558079B CN201710847286.0A CN201710847286A CN107558079B CN 107558079 B CN107558079 B CN 107558079B CN 201710847286 A CN201710847286 A CN 201710847286A CN 107558079 B CN107558079 B CN 107558079B
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Abstract
The application relates to a chain quantitative intelligent oil supplementing system of a heat setting machine, belonging to the technical field of finishing filaments, yarns, wires, cables, ropes and the like. The device comprises a straight through type stepping motor, a setting machine chain and a control system, wherein an output shaft of the motor is connected with a piston rod of a hydraulic cylinder through a flange; the hydraulic cylinder is respectively communicated with the output end and the input end of the two one-way valves; the setting machine chain is controlled to run by two chain wheels, and passes through the oven; the control system processes the state signals of the components and controls the linear through stepping motor to operate. Be applied to the forming machine with this application and refuel, have the advantage such as effective, even refuel to the chain.
Description
Technical Field
The application relates to a chain quantitative intelligent oil supplementing system of a heat setting machine, belonging to the technical field of finishing filaments, yarns, wires, cables, ropes and the like.
Background
Chain drives are common drive mechanisms in mechanical equipment. In the service process of the chain transmission mechanism, large friction exists in the processes of engagement of the chain wheels and the chain, dragging of the chain and the load and the track, and in order to ensure long-term stable operation of the chain transmission mechanism, the chain transmission mechanism needs to be oiled and lubricated regularly and quantitatively. The chain transmission mechanism which runs for a long time and lacks lubrication generally has the problems of abrasion of a chain gear or a chain roller, high running noise, low transmission efficiency and the like, and particularly, when a machine cold car starts, the machine can be in fault and the like due to overlarge starting resistance.
The printing and dyeing heat setting machine is one of important technological equipment in the dyeing and finishing process. In the heat setting process, a chain transmission mechanism is generally adopted to drive a cloth gripper mechanism for fixing the fabric to finish the operations of cloth feeding, stretching, expanding, cloth discharging and the like. In the whole heat setting process, except for the cloth feeding section and the cloth discharging section, the chain is positioned in a high-temperature drying room of the heat setting machine. The temperature of the drying room is generally between 180 ℃ and 220 ℃ according to different shaping process requirements. Because of the high temperature volatility of lubricating oil, the chain of the heat setting machine is required to be subjected to periodical oil supplementing lubrication. In the prior art, the oiling and lubrication of the chain is generally carried out by adopting a manual oil supplementing or timing long oil supplementing method. Both methods start the oil supplementing process after the manual determination that the chain needs to be oiled and lubricated, except that the manual oil supplementing is to manually lubricate the chain by an operator, and the timing long oil supplementing is to lubricate the chain by an oil supplementing mechanism according to a set time amount and at a fixed oiling rate. The oil supplementing method has the following problems: (1) the heat setting machine is generally operated continuously for 24 hours, and a machine operator generally adopts two-shift working systems, so that the phenomenon of untimely oiling is easily caused by handover and the like, and particularly the problem of cold car starting mechanical failure caused by untimely oiling is easily caused; (2) in the heat setting process, according to different setting processes, different drying room temperatures and chain running speeds have larger differences, and the phenomenon of uneven oiling inevitably exists in both manual oiling and timing long-speed oiling methods, particularly in certain cases, the excessive local oil quantity can cause lubricating oil to drop out, pollute fabrics and cause production quality problems; (3) because the heat setting temperature is higher, the risk such as scald still exists in artifical oil supply.
Therefore, in order to solve the above-mentioned prior art problems, it is necessary to provide an innovative chain quantitative intelligent automatic oiling lubrication system for a heat setting machine, so as to overcome the defects in the prior art.
Based on this, the present application is made.
Disclosure of Invention
Aiming at the defects in the prior art, the application provides a chain quantitative intelligent oil supplementing system of a heat setting machine, so as to overcome the problems and defects existing in the manual oil supplementing or timing long-fixed-speed oil supplementing method.
In order to achieve the above purpose, the technical scheme adopted by the application is as follows:
the heat setting machine chain quantitative intelligent oil supplementing system comprises a straight line through type stepping motor and a setting machine chain, wherein an output shaft of the motor is connected with a piston rod of a hydraulic cylinder through a flange; the hydraulic cylinder is respectively communicated with the output end and the input end of the two one-way valves, the input end of the one-way valve, the output end of which is communicated with the hydraulic cylinder, is connected with the oil tank, and the output end of the one-way valve, the input end of which is communicated with the hydraulic cylinder, is communicated with the oil gun through an oil guide pipe through an oil guide three-way pipe fitting and then through a connecting hose; the oil gun is fixed on a baffle plate, and an oil brush is arranged on the baffle plate; the setting machine chain is controlled to run by two chain wheels, and passes through the oven; the inner wall of the oven is provided with an air pressure sensor and a temperature sensor; the chain wheel is provided with a coaxially installed encoder, a magnetic switch is arranged in a hydraulic cylinder cavity, and a liquid level meter is arranged in an oil tank; the control system is connected with an encoder, a magnetic switch, an air pressure sensor, a temperature sensor and a liquid level meter, and respectively processes signals to realize the control of the linear through type stepping motor.
Further, as preferable:
the encoder is coaxially arranged with the chain wheel and is used for detecting the rotating speed of the chain wheel and transmitting the signal to the control system after indirectly obtaining the running speed of the chain.
The air pressure sensor and the temperature sensor are both arranged in the oven and used for detecting the air pressure value and the temperature value in the oven and transmitting signals to the control system.
The magnetic switch is arranged in the hydraulic cylinder and used for calibrating the original position of the linear through stepping motor, so that the movement formation of the piston is controlled, and the oil sucking/discharging quantity of the hydraulic cylinder is controlled.
The liquid level meter is placed in the system oil tank and used for detecting the liquid level in the oil tank, so as to judge whether the lubricating oil needs to be added into the oil tank.
The control system receives signals of the encoder, the air pressure sensor, the temperature sensor, the magnetic switch and the liquid level meter and controls the linear through type stepping motor, wherein:
required for one week of chain operationInterval t 1 =chain length L/running speed v 1 ；
Fueling time t 2 Time t of one week of chain operation =n × 1 Wherein n represents that quantitative oiling is completed after the chain is set to run for n circles, so that the uniformity of the oiling amount is ensured;
assuming that the oil sucking/discharging speeds of the linear through type stepping motor control hydraulic cylinders are the same, the motor operates for a time t 3 Oiling time t=2 times 2 ；
Assume that the single oil drain time is
Wherein m represents the supply of the supplementary oil quantity required by the chain through m times of oil discharge of the hydraulic cylinder;
the linear through type stepping motor controls the linear motion speed v 2 Single oil length S/single oil drain time t of hydraulic cylinder 4 The control pulse sequence of the stepper motor can then be calculated.
For any lubricating oil, the volatilization rate E, the saturated vapor pressure P and the Kelvin temperature T all follow certain linear relation characteristics, when a certain brand of lubricating oil relation characteristic curve is known, when the certain oil filling quantity is Q, the volatilization time T can be obtained through calculation of ≡Edt=Q/L. The system dynamically solves the volatilization rate E of the lubricating oil by measuring the air pressure and the temperature in the oven in real time, then budgets the total volatilization time of the lubricating oil on the chain, and then can intelligently control the oil supplementing period without artificial auxiliary judgment.
Particularly, when the relation characteristic of the lubricating oil is unknown, the system can be intelligently learned by manual assistance to obtain the inertial characteristic curve of the lubricating oil. Specifically, the chain is added with lubricating oil which can volatilize completely in a single process period (namely, the temperature and the pressure are basically kept constant), and the volatilization time is input when the completion of the volatilization of the oil is manually judged. After multiple training, the characteristic curve of the lubricating oil can be solved according to the linear relation curve obtained by the method.
The hydraulic cylinder is connected with the output end of the one-way valve and the input end of the one-way valve so as to realize the inlet and outlet of lubricating oil in the hydraulic cylinder.
The oil gun is fixed on the baffle plate to realize the fixation of the oil feeding point position.
The oil brush is fixed on the baffle plate, and is used for uniformly brushing lubricating oil which is dripped on the chain by the oil gun, so that the oil throwing phenomenon is avoided.
The application provides a heat setting machine chain ration formula intelligence oil compensating system, include: a linear through type stepping motor; the motor output shaft is connected with a piston rod of the hydraulic cylinder through a flange; a magnetic switch is arranged in the hydraulic cylinder cavity; the hydraulic cylinder is respectively communicated with the output end and the input end of the two one-way valves; the output end of the one-way valve is communicated with the hydraulic cylinder, and the input end of the one-way valve is connected with the oil tank; a liquid level meter is arranged in the oil tank; the output end of the one-way valve, the input end of which is communicated with the hydraulic cylinder, passes through an oil guide pipe through an oil guide three-way pipe fitting and is communicated with the oiling gun through a connecting hose; the oil gun is fixed on the baffle; the baffle is provided with an oil brush; the setting machine chain is controlled to run by two chain wheels; the setting machine chain passes through the oven; the inner wall of the oven is provided with an air pressure sensor and a temperature sensor; the chain wheel is provided with a coaxially installed encoder; the control system processes signals of the encoder, the sensor and the liquid level meter and controls the motor. According to the method, the liquid level signal in the oil tank is transmitted to the control system through the liquid level meter, and the oil quantity in the oil tank is monitored in real time; the rotating speed signal of the chain wheel is transmitted to the control system through the encoder, the air pressure and temperature signals in the oven are transmitted to the control system through the sensor, and the control system is processed and transmits the control signal to the motor to control the oil suction and the oil discharge of the hydraulic cylinder.
Wherein, control system carries out real-time control to the oil mass in the oil tank through gathering the liquid level signal of oil tank, in time reminds the staff to add the oil to the oil tank. The control system in this application fully considers the volatility of chain lubricating oil under the high temperature oven environment to read into control system with the running speed parameter of actual production line chain, intelligent solution calculates the time that the lubricating oil volatilizees completely on the chain and for the required time of refueling completely of chain, avoided the machine trouble that the chain caused because of the lack of oil, and guaranteed timeliness, abundant and the homogeneity of refueling, really realize intelligent oil replacement.
Compared with the prior art, the application has the following beneficial effects: according to the device, the rotating speed of the chain wheel is detected through the encoder, the running speed of the chain is indirectly obtained, the rotating speed and the running time of the linear through stepping motor are controlled through the control system, and then the oil sucking/discharging quantity of the hydraulic cylinder is controlled, so that the chain is effectively and uniformly oiled. In order to control the unification of oil sucking/discharging quantity of the hydraulic cylinder each time, a magnetic switch is arranged in the hydraulic cylinder and used for calibrating the original position of the linear through type stepping motor and controlling the movement of the piston to form. Meanwhile, the volatility of the lubricating oil at high temperature is considered, under the action of a control system, the real-time pressure and temperature in a drying room are measured, the volatilization complete time of the lubricating oil on the chain can be intelligently solved and calculated, and then the automatic control of the linear through stepping motor is realized, so that the automatic quantitative oiling of the chain is realized. Secondly, control system in this application is through receiving the liquid level information of level gauge transmission, realizes the control to the oil mass in the oil tank, has reminded the staff to carry out timely oil addition. Through this application, the effectual realization carries out intelligent ration formula automatic oiling to heat setting machine chain.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a graph of volatility of a lubricant oil according to the present application.
Reference numerals in the drawings: 1. a control system; 2. an encoder; 3. a sprocket; 4. a setting machine chain; 5. an oil brush; 6. a baffle; 7. a fuel gun; 8. a connecting hose; 9. an oil guiding three-way pipe fitting; 10. an oil guide pipe; 11. a one-way valve; 12. a hydraulic cylinder; 13. an oil guide pipe; 14. a one-way valve; 15. an oil tank; 16. a liquid level gauge; 17. a switch valve; 18. a linear through type stepping motor; 19. a screw rod; 20. a flange; 21. a piston rod; 22. a piston; 23. a magnetic switch; 24. an oven; 25. an air pressure sensor; 26. a temperature sensor.
Detailed Description
The embodiment relates to a chain quantitative intelligent oil supplementing system of a printing and dyeing heat setting machine, and in combination with fig. 1, the chain quantitative intelligent oil supplementing system comprises: a linear through stepping motor 18; the output shaft of the motor is connected with a piston rod 21 of the hydraulic cylinder 12 through a flange 20; the hydraulic cylinder 12 is respectively communicated with the output end and the input end of the two one-way valves; the input end of a one-way valve 14 with the output end communicated with the hydraulic cylinder 12 is connected with an oil tank 15; the output end of a one-way valve 11 with the input end communicated with a hydraulic cylinder 12 passes through an oil guide pipe 10 and an oil guide three-way pipe fitting 9, and is communicated with the oil gun 7 through a connecting hose 8; the oil gun 7 is fixed on the baffle 6; the baffle 6 is provided with an oil brush 5; the setting machine chain 4 is controlled to run by two chain wheels 3; the setter chain 4 passes through the oven 24.
Wherein, encoder 2 is installed with sprocket 3 coaxial for detect sprocket 3's rotational speed, and transmit rotational speed signal to control system 1.
An air pressure sensor 25 and a temperature sensor 26 are installed inside the oven 24 to detect the air pressure value and the temperature value inside the oven 24 and transmit signals to the control system 1.
The liquid level meter 16 is placed in the oil tank 15 and is used for detecting the oil level in the oil tank 15 and transmitting an oil level signal to the control system 1 so as to remind a worker whether to fill the oil in the oil tank 15.
A magnetic switch 23 is mounted in the hydraulic cylinder 12 for stopping the movement of the piston 22 to a fixed position. When the hydraulic cylinder 12 discharges oil, the piston rod 21 drives the piston 22 to move rightwards, and when the piston 22 touches the magnetic switch 23, a signal is transmitted to the control system 1, and the control system 1 controls the linear through type stepping motor 18 to stop running.
The control system 1 is used for receiving signals of the encoder 2, the air pressure sensor 25, the temperature sensor 26, the magnetic switch 23 and the liquid level meter 16 and controlling the linear through type stepping motor 18.
Wherein: the time t required for one week of running of the setting machine chain 4 1 Length L of chain 4 of setting machine/running speed v 1 ；
Fueling time t 2 Time t of one run of n×setting machine chain 4 1 N represents that the oil of the setting machine chain 4 is added after n circles are set;
assume thatThe linear through type stepping motor 18 controls the oil sucking/discharging speed of the hydraulic cylinder 12 to be the same, so that the motor operates for time t 3 Oiling time t=2 times 2 ；
Assume that the single oil drain time is
m represents that the hydraulic cylinder 12 finishes discharging the required oil amount through m times;
the linear through stepper motor 18 controls the speed v of the linear motion 2 Length of single oil amount S/single oil drain time t of hydraulic cylinder 12 4 The control pulse sequence of the linear through stepper motor 18 can then be calculated.
For any lubricant, the volatilization rate E, the saturated vapor pressure P and the kelvin temperature T all follow the linear relation characteristic shown in fig. 2, and when a certain brand of lubricant relation characteristic curve is known, the volatilization time T can be obtained through the calculation of ≡edt=q/L when a certain fuel filling amount is Q. The system dynamically solves the volatilization rate E of the lubricating oil by measuring the air pressure and the temperature in the oven 24 in real time, then budgets the total volatilization time of the lubricating oil on the chain 4 of the setting machine, and then can intelligently control the oil supplementing period without artificial auxiliary judgment.
Particularly, when the relation characteristic of the lubricating oil is unknown, the system can be intelligently learned by manual assistance to obtain the inertial characteristic curve of the lubricating oil. Specifically, the chain is added with lubricating oil which can volatilize completely in a single process period (namely, the temperature and the pressure are basically kept constant), and the volatilization time is input when the completion of the volatilization of the oil is manually judged. After multiple training, the characteristic curve of the lubricating oil can be solved according to the linear relation curve shown in fig. 2.
In this embodiment, the output shaft screw 19 of the linear through type stepper motor 18 is connected with the piston rod 21 of the hydraulic cylinder 12 through the flange 20, so as to push the piston rod 21 to drive the piston 22 to move, and realize oil quantity control of the hydraulic cylinder 12. When the oil level is required to be increased for the hydraulic cylinder 12 in use, the linear through type stepping motor 18 controls the piston 22 to move leftwards so as to realize oil absorption from the oil tank 15; when the forming machine chain 4 needs to be oiled, the piston 22 is controlled to move rightwards by the linear through type stepping motor 18, so that the forming machine chain is pressed out from the hydraulic cylinder 12.
The hydraulic cylinder 12 is provided with a one-way valve 14 on an oil path connected with the oil tank 15, the input end of the one-way valve 14 is connected with the oil tank 15, and the output end is connected with the hydraulic cylinder 12. When the linear through type stepping motor 18 controls the piston 21 to move left to absorb oil, the one-way valve 14 is opened, and lubricating oil flows from the oil tank 15 to the hydraulic cylinder 12 through the oil guide pipe 13.
A one-way valve 11 is arranged on an oil path between the hydraulic cylinder 12 and the oil gun 7, the input end of the one-way valve 11 is connected with the hydraulic cylinder 12, and the output end is connected with the oil guide pipe 10. When the linear through type stepping motor 18 controls the piston 21 to move right to drain oil, the check valve 11 is opened, and the oil flows out from the hydraulic cylinder 12 through the oil guide pipe 10 by the hydraulic cylinder 12.
The oil brush 5 is arranged on the baffle 6, so that lubricating oil dripped on the upper surface of the setting machine chain 4 can be uniformly coated, and the phenomenon of oil throwing in the movement process of the setting machine chain 4 is avoided.
The foregoing is a further detailed description of the proposed solution in connection with the preferred embodiments of the present invention, and it should not be construed that the invention is limited to the specific embodiments, but that several simple deductions or substitutions may be made by those skilled in the art to which the invention pertains without departing from the inventive concept, all shall be deemed to fall within the scope of the invention.
Claims (3)
1. Chain quantitative intelligent oil supplementing system of heat setting machine, its characterized in that: the linear through type stepping motor comprises a linear through type stepping motor, a setting machine chain and a control system, wherein a motor output shaft of the linear through type stepping motor is connected with a piston rod of a hydraulic cylinder through a flange; the hydraulic cylinder is respectively communicated with the output end and the input end of the two one-way valves, the input end of the one-way valve, the output end of which is communicated with the hydraulic cylinder, is connected with the oil tank, and the output end of the one-way valve, the input end of which is communicated with the hydraulic cylinder, passes through the oil guide pipe through the oil guide three-way pipe fitting and is communicated with the oil gun through the connecting hose; the setting machine chain is controlled to run by two chain wheels, and passes through the oven;
the sprocket on coaxial mounting have the encoder, through the processing to the rotational speed signal of the sprocket that the encoder surveyed, control straight line through type step motor's operating time and speed, wherein:
time t required for one week of chain operation 1 =chain length L/running speed v 1 ；
The chain is refueled for a time t 2 Time t of one week of running of n×chain 1 N represents that the oil of the chain is added after n circles are set;
if the linear through type stepping motor is arranged to control the oil sucking/discharging speed of the hydraulic cylinder to be the same, the motor operates for a time t 3 Oiling time t=2 times 2 ；
Let the single oil drain time of the hydraulic cylinder be
m represents that the hydraulic cylinder finishes discharging the required oil quantity through m times;
the linear through type stepping motor controls the linear motion speed v 2 Single oil length S/single oil drain time t of hydraulic cylinder 4 Then, a control pulse sequence of the stepping motor can be calculated;
the inside barometric sensor and the temperature sensor of being provided with of oven, through the processing to barometric sensor and temperature sensor survey signal, air pressure and temperature in the real-time measurement oven, dynamic solution lubricating oil volatilizees speed E, and the total time that volatilizees of the last lubricating oil of budget chain then need not artificial supplementary judgement, can intelligent control oil filling cycle, and then control straight line through step motor's start-up moment, wherein: for any lubricating oil, the volatilization rate E, the saturated vapor pressure P and the Kelvin temperature T all follow the linear relation characteristic, when the relation characteristic curve of a certain brand of lubricating oil is known, and when the oil filling quantity is Q at a certain time, the volatilization time T can be obtained through calculation of ≡Edt=Q/L;
the oil tank is internally provided with a liquid level meter, and the sending of an alarm signal is controlled to remind the oil tank of adding oil;
the magnetic switch is arranged in the hydraulic cylinder, and controls the start/stop and steering of the linear through stepping motor to realize the oil sucking/discharging of the hydraulic cylinder;
the control system is connected with the encoder, the magnetic switch, the air pressure sensor, the temperature sensor and the liquid level meter, and respectively processes signals to realize the control of the linear through type stepping motor.
2. The chain quantitative intelligent oil supplementing system of a heat setting machine according to claim 1, wherein: the output shaft of the straight-line through type stepping motor is a screw rod, and the screw rod is connected with a piston rod in the hydraulic cylinder through a flange.
3. The chain quantitative intelligent oil supplementing system of a heat setting machine according to claim 1, wherein: the oil gun is fixed on a baffle plate, and an oil brush is arranged on the baffle plate.
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| CN112161029A (en) * | 2020-09-23 | 2021-01-01 | 诸暨市华都联和印花有限公司 | Forming machine and cloth production process applying same |
| CN115215023B (en) * | 2022-05-19 | 2023-12-19 | 无锡承方科技有限公司 | File access path intelligent security analysis system and method based on big data |
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