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Deviation correction of coiled material

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deviation correction control refers to the spraying of coiled materials produced by the manufacturer. Once the edge of the coil is not aligned, it will cause subsequent work steps to make mistakes. Therefore, when processing coiled materials, this process is called deviation correction. Persistence and excessive pursuit of function are the major taboos of qigong practice and practice. Therefore, we should always maintain a clean and inactive heart and abandon persistence and pursuit, so that we can make further progress. Otherwise, we will enter a dead end – deviation
since it’s a deviation to practice the meritorious skill, you can take the anti meritorious mental skill of inaction and the guidance of inaction for the best conditioning. Chi’s mental method emphasizes unconscious cultivation. It doesn’t need to be practiced at all. The sitting and sleeping method inside is the most winning magic weapon for correcting deviation. Most of the deviation is due to too much yang qi in the Yin pulse. Unexpectedly, the Yin pulse is afraid of hyperactivity of Yang – electromagnetism. When hyperactivity of Yang accumulates in the Yin pulse for a long time, it will deviate, and the Yin pulse cannot leave positive and anti electrons, but there is no taboo to their collider – photons. (refer to basic philosophy of Tzu Chi and organic science for positron, anti electron, photon, etc.)
the most effective way to straighten out: sitting and sleeping of Tzu Chi mental method (remember not to add any ideas!) Add kneeling pile support – kneel and kowtow to yourself for more than 10 minutes a day without any ideas
the kowtow of kneeling pile is for guidance. Abandoning all promising methods and sleeping without any thoughts is the most effective and fastest way to correct errors—— Coil manufacturing technology applied to steel, corrugated paper, textile, printing, labeling, labeling, papermaking, plastic film, building materials, cables, rubber, tires and other industries. Coil deviation correction refers to that the coil produced by the manufacturer is sprayed. Therefore, this process is called deviation correction
correction in modern sense involves a wide range of industries, such as packaging, printing, labeling, building materials, pulp, household paper, plastics, clothing, cables, metal processing, non-woven fabrics, corrugated paper processing and so on. A typical deviation correction system includes deviation correction controller, deviation correction sensor, deviation correction frame and driver
at present, the situation of domestic deviation correction industry: the high-end market is mainly monopolized by foreign countries, but there is no lack of manufacturers in China. The itinerary of this industry marks the progress and breakthrough of China’s industrial packaging and achieves the concept of energy conservation and environmental protection. According to incomplete statistics, the use of deviation correction system can save about 10% to 20% of materials. Energy conservation and emission reduction are indispensable for industrial deviation correction. As shown in the figure. Working principle
the position of one side is detected by the photoelectric detection switch to pick up the position deviation signal, then the position deviation signal is logically calculated to generate the control signal, and the DC24V voltage signal is output to drive the external actuator, correct the snake deviation during material operation and control the linear movement of material
working conditions
working voltage AC 220 ± 10% 50Hz, ambient temperature below 50 ℃
deviation correction characteristics
① it is mainly used in the occasions where the crimping needs to be controlled in printing and packaging, papermaking, film, textile and other industries. ② The internal quantity is controlled by intelligent single chip microcomputer ③ the deviation correction response speed is adjustable ④ the belt can provide single eye or double eye deviation correction tracking ⑤ four requirements for self-determined deviation correction maintenance of line following and edge following
(1) neat: tools, workpieces and accessories are placed neatly; Complete safety protection devices; The pipeline is complete
(2) sell out: internal and external cleaning; Each sliding surface, lead screw, gear and rack shall be free of oil stain and bruise; All parts shall be free from oil leakage, water leakage, air leakage and electric leakage; Clean the chips and garbage
(3) lubrication: fill and change the oil on time, and the oil quality meets the requirements; The oil pot, oil gun, oil cup, linoleum and oil line shall be clean and complete, the oil mark shall be bright and the oil circuit shall be unblocked
(4) safety: implement the system of fixed person, fixed machine and shift handover; Be familiar with the deviation correction maintenance structure and abide by the operating procedures, reasonably use the deviation correction maintenance and careful maintenance tools to prevent accidents
mechanical maintenance
the daily maintenance of equipment is the basic work of equipment maintenance, which must be institutionalized and standardized. For the regular maintenance of equipment, work quota and material consumption quota shall be formulated and assessed according to the quota. The regular maintenance of equipment shall be included in the assessment content of workshop contracting responsibility system. Regular inspection of equipment is a planned preventive inspection. In addition to human senses, the inspection means should also have certain inspection tools and instruments, which should be implemented according to the regular inspection card. Regular inspection is also called regular spot inspection. The accuracy of mechanical equipment shall also be checked to determine the actual accuracy of the equipment. 1. In order to ensure that the mechanical equipment is always in good technical condition and can be put into operation at any time, reduce the days of failure and shutdown, improve the intact rate and utilization rate of machinery, reduce mechanical wear, prolong the service life of machinery, reduce the operation and maintenance cost of machinery, and ensure safe production, it is necessary to strengthen the maintenance of
mechanical equipment
2 The principle of “paying equal attention to maintenance and repair and focusing on prevention” must be implemented in mechanical maintenance, so that regular maintenance and compulsory maintenance can be achieved, and the relationship between use, maintenance and repair can be handled correctly. It is not allowed to use only without maintenance, repair only without maintenance
3 Each team must do a good job in the maintenance of all kinds of machinery according to the mechanical maintenance procedures and maintenance categories, and shall not delay without reason. Under special circumstances, the maintenance can be postponed only after being approved by the special Engineer in charge, but generally not more than half of the specified maintenance interval
4 The maintenance of machinery shall ensure the quality, and shall be carried out item by item according to the specified items and requirements, and shall not be omitted or not guaranteed. The maintenance items, maintenance quality and problems found during maintenance shall be recorded and reported to the professional engineer of the Department
5 Maintenance personnel and maintenance departments should achieve “three inspections and one handover (self inspection, mutual inspection, full-time inspection and one handover qualified)”, constantly summarize maintenance experience and improve maintenance quality
6 The asset management department shall regularly supervise and inspect the mechanical maintenance of each unit, spot check the maintenance quality regularly or irregularly, and reward the good and punish the bad
purpose
when the CCP and SSOP do not meet the standards and key limits, take corrective actions in t
ime to ensure that the CCP and SSOP return to the control point
scope of application
this procedure is applicable to the control of corrective measures for CCP and SSOP nonconformities during the operation of the company’s HACCP system and processing and production
responsibilities
be responsible for the management and implementation of corrective measures during the operation of HACCP system
the manager of the production department is responsible for the management and implementation of corrective measures in the production process
others are responsible for the management and implementation of corrective measures within their respective functions
in case of any deviation from the control procedure
CCP, it is necessary to inform the person in charge of the site in time
implementation of corrective measures for individual affected products after CCP deviation. If there are more than 5 products or a whole batch of products affected after the CCP deviation, the manager of the production department shall be responsible for the implementation of corrective measures
corrective measures
first, after the CCP deviates, the following corrective measures shall be taken for the affected products according to the requirements of the HACCP schedule: A. release that deviates from the operating limit but does not deviate from the key limit. b. Rework. c. Isolate and preserve products to be evaluated. d. For other purposes. Preparations and precautions before start-up
A. comprehensively check whether the mechanical seal and the installation of auxiliary devices and pipelines are complete and meet the technical requirements. B. conduct static pressure test before starting the mechanical seal to check whether the mechanical seal has leakage. If there are many leaks, find out the causes and try to eliminate them. If it is still invalid, it shall be disassembled, inspected and reinstalled. The general static pressure test pressure is 2 ~ 3kg /cm2. C. rotate the turning gear according to the pump to check whether it is light and uniform. If the turning gear is hard or stationary, check whether the assembly size is wrong and whether the installation is reasonable
installation and shutdown
A. keep the sealing cavity filled with liquid before startup. When transporting solidified medium, steam shall be used to heat the sealing cavity to melt the medium. Turning must be carried out before starting to prevent the soft ring from breaking due to sudden starting. B. for the mechanical seal using the oil sealing system outside the pump, start the oil sealing system first. Stop the oil sealing system after shutdown. C. after the hot oil pump is shut down, the cooling water of the sealing oil chamber and the end face seal cannot be stopped immediately. The cooling water can be stopped only when the oil temperature at the end face seal drops below 80 degrees, so as to avoid damaging the sealing parts
operation
A. if there is slight leakage after the pump is started, observe it for a period of time. If the leakage does not decrease after continuous operation for 4 hours, stop the pump for inspection. B. the operating pressure of the pump shall be stable, and the pressure fluctuation shall not be greater than 1kg /cm2. C. during the operation of the pump, evacuation shall be avoided to avoid dry friction and seal damage on the sealing surface. D. the sealing condition shall be checked frequently. If the light oil quality of the unit is greater than 2-5 drops of standard oil, the pump shall not be stopped within 10-5 days. If the oil quality is still greater than the standard oil quality, the pump shall not be stopped within 10-5 drops. 1. Alignment work: the width of sign line shall not be less than 2mm
2. Opposite side work: keep the same chromaticity area of more than 2mm on the side of the sign
3. Detection distance: the coaxial reflective photoelectric eye (visible light) is 12mm
4. Response time: the photoelectric eye response time is 2ms and the system response speed is 50ms
5. Correction accuracy: ± 1mm
6. Maximum pushing weight: 1.5t/3t optional
7. Out of control protection: the system is equipped with out of control protection device at limit position (this function is optional). Check and analyze
(1) understand the process of the fault, the working conditions before the fault and the symptoms after the fault
(2) carefully analyze the cause or scope of the fault, find the cause or analyze the scope of the fault
(3) conduct appearance inspection, mainly to check whether the fixing screws and wiring screws of fuses, relays, contactors and travel switches are loose? Is there any disconnection? Is there any phenomenon such as burn out of money ring or contact fusion welding? Is the moving mechanism of electrical appliances flexible? wait. Clear the obvious faults in time
(4) power off inspection is mainly to find hidden faults. Generally, use the resistance gear of the multimeter to check whether the components and circuits in the fault area have open circuit, short circuit or grounding. Sometimes it can also be checked with the help of megger and other devices. Power off inspection. If the cause of the fault cannot be found, power on inspection can be carried out
(5) power on inspection is mainly to find faults that are not easy to find. The power on inspection should be carried out without load to avoid accidents
detection methods
the commonly used detection methods for electrical faults of machine tools mainly include voltage method, resistance method, short circuit method, open circuit method and current method
(1) voltage method
the method of determining the range of electrical fault points of machine tools or component faults by using the voltage value of a certain point on the instrument measurement line is called voltage method or voltage measurement method
(2) resistance method
the method of determining the fault point by measuring the on-off of a point or a component on the circuit with an instrument is called resistance method
(3) short circuit method
the method of temporarily short circuiting a certain level of circuit or component suspected of failure and observing whether the fault state changes to determine the fault location. When the short-circuit method is used to check multi-level circuits, the fault disappears or decreases significantly when a certain plain clothes is short circuited, indicating that the fault is before the short-circuit point, and the fault without change is after the short-circuit point. If the potential at the output end of a stage is abnormal, short circuit the input end of the stage. If the potential at the output end is normal, the stage is energized

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