CN115351116A - Control method, device and equipment for reducing transverse crease marks of inner ring of strip steel - Google Patents
Control method, device and equipment for reducing transverse crease marks of inner ring of strip steel Download PDFInfo
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- CN115351116A CN115351116A CN202210880391.5A CN202210880391A CN115351116A CN 115351116 A CN115351116 A CN 115351116A CN 202210880391 A CN202210880391 A CN 202210880391A CN 115351116 A CN115351116 A CN 115351116A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
- B21C47/3433—Feeding or guiding devices not specially adapted to a particular type of apparatus for guiding the leading end of the material, e.g. from or to a coiler
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Abstract
本发明公开了一种减少带钢内圈横折印的控制方法、装置及设备,通过将带钢头部准确定位于卷取机的卷筒软区；确定穿带时皮带助卷器的助卷带钢长度、助卷张力以及机组的动态张力；根据皮带助卷器的助卷带钢长度、助卷张力对头部已准确定位于卷取机卷筒软区的带钢进行皮带助卷器卷取；根据机组的动态张力，对已完成助卷的带钢继续进行机组卷取，直至完成卷取工作。通过以上方式，本发明充分利用厂区现有作业条件，无需对现有设备进行大的技术改造，在避免过高技改投资的情况下明显减少了带钢穿带时内圈横折印缺陷，提高了机组成材率，降本增效效果显著，从而明显提升了带钢生产的竞争力。
The invention discloses a control method, device and equipment for reducing the horizontal folding marks of the inner ring of the steel strip. By accurately positioning the head of the steel strip at the soft area of the reel of the coiler; The length of the coiled steel, the tension of the coiling aid and the dynamic tension of the unit; according to the coiling aided strip length and the coiling tension of the belt coiler, the belt coiling is performed on the strip whose head has been accurately positioned in the soft area of the coiler drum Coiler; according to the dynamic tension of the unit, continue to coil the strip steel that has been assisted until the coiling work is completed. Through the above method, the present invention makes full use of the existing operating conditions in the factory area, does not need to carry out major technical transformation on the existing equipment, and significantly reduces the defects of the inner ring horizontal folds when the strip is threaded, while avoiding excessive investment in technical transformation. The composition rate of the unit is improved, and the effect of cost reduction and efficiency increase is remarkable, thereby significantly improving the competitiveness of strip steel production.
Description
Technical Field
The invention relates to the technical field of control over plate strips of a rewinding unit, in particular to a control method, a control device and control equipment for reducing transverse creases of an inner ring of a strip steel.
Background
When a rewinding unit produces a product with the specification and thickness of more than or equal to 1.2mm, a transverse crease mark defect of a winding drum can be generated, the transverse crease mark defect generally occurs in the width direction, the transverse crease mark defect can penetrate through the whole width or only the edge part, and the shape of the transverse crease mark is a transverse stripe vertical to the running direction of the unit. The fundamental reason for the defect is that the head of the strip steel is raised after the head of the strip steel enters the coiler. According to the coiling process, when strip steel passes through a coiler, the first circle of strip steel is wound on a winding drum under the action of a belt wrapper, a bulge is formed at the head part of the strip steel due to the thickness of the strip steel plate, the strip steel plate is copied layer by layer, and under the action of the radial pressure of the inner layer of strip steel, a transverse crease mark is formed on the outer side of the bulge, so that the surface quality of the strip steel is seriously influenced. At present, the average length of the transverse crease marks of the inner ring of the strip steel can reach 100 m/roll, so that the strip steel has low yield and great feedback suggestion of users, and in addition, the production cost is obviously improved. The main reasons for this are:
1. the flexible sleeve itself is structurally responsible. Because the soft area interval of the winding drum of the existing coiler is narrow and generally only has the soft area interval with the width of 20mm, the strip steel and the winding drum move relatively, the position of a floppy drive from the strip steel to the coiler has deviation, and a strip head cannot be accurately positioned in the middle of the flexible sleeve floppy drive interval, so that transverse crease marks of an inner ring are caused;
2. the linear laser sensor has insufficient detection sensitivity. When the strip is threaded, the strip steel enters a detection area in the range of a coiling machine and is frequently triggered by mistake, so that the coiling machine moves in advance or lags behind, a strip head cannot be accurately positioned at the soft area of a winding drum, and transverse crease marks of an inner ring are caused;
3. the unit tension is unreasonable. The tension of the unit is unreasonably set, so that transverse crease marks of the inner ring can be caused on the inner ring of the steel coil, and the inner ring are superposed layer by layer during operation;
4. the belt wrapper has too high belt tension. When the tension is set too much during the roll-assisting process, the inner ring is rolled too tightly, and the transverse crease of the inner ring is caused.
In view of the above situation, there is an urgent need to provide a control technique for effectively reducing the transverse crease marks of the inner ring of the rewound strip steel, so as to solve the above problems.
Disclosure of Invention
The invention aims to provide a method which can skillfully utilize the existing operating conditions of a factory area, can effectively reduce the transverse crease marks of an inner ring when the strip steel is rewound without carrying out large technical transformation on the existing equipment, avoids large technical transformation investment, improves the yield of a rewinding machine set, has obvious effects of cost reduction and efficiency improvement, and obviously improves the competitiveness of the strip steel production.
In order to achieve the purpose, the invention provides the following technical scheme:
a control method for reducing transverse crease marks of an inner ring of a strip steel comprises the following steps:
accurately positioning the head of the strip steel in a soft area of a winding drum of a winding machine;
determining the length of the wrapper strip steel of the belt wrapper, the wrapper tension and the dynamic tension of the unit when threading;
according to the length and the winding tension of the winding band steel of the belt winding aid, winding the band steel of which the head is accurately positioned in the soft area of the winding drum of the coiler by the belt winding aid;
and according to the dynamic tension of the unit, continuously carrying out unit coiling on the band steel which is subjected to wrapper making until the coiling work is finished, thereby reducing the transverse crease marks of the inner ring of the band steel.
As a further improvement of the invention, the determination of the wrapper strip length, wrapper tension and unit dynamic tension of the belt wrapper during threading comprises the following steps:
selecting the length of the coiling-assistant strip steel of the belt coiling-assistant device, the coiling-assistant tension and the dynamic tension of the unit according to the type of the strip steel and the thickness of the strip steel, thereby establishing the data relation between the tension and the number of impressing turns of the inner layer of the steel coil when the strip steel passes through the coiling machine;
and determining the length of the coiling-assistant strip steel of the belt coiling-assistant device, the coiling-assistant tension and the dynamic tension of the unit during the strip threading according to the data relation between the tension of the strip steel threading coiler and the number of impressed turns of the inner layer of the steel coil.
As a further improvement of the invention, the accurate positioning of the strip head at the soft area of the winding drum of the winding machine comprises the following steps:
monitoring the relative position of the head of the strip steel from a coiling machine by using a point-shaped laser sensor;
when the head of the strip steel reaches the designated position, the winding drum is driven to start to rotate, and the synchronous transmission time sequence is used for controlling the positioning speed of the soft area of the winding drum, so that the head of the strip steel is accurately positioned in the soft area of the winding drum of the coiling machine.
As a further improvement of the invention, the synchronous transmission time sequence for controlling the positioning speed of the soft area of the winding drum comprises the following steps:
setting a plurality of winding drum soft area positioning modes aiming at different winding drum sizes and different winding modes;
and selecting a proper positioning mode from the multiple reel soft area positioning modes according to the thickness of the strip steel, the type of the used reel and a proper reeling mode to perform time sequence optimal positioning on the soft area on the reel.
As a further improvement of the invention, the accurate positioning of the strip steel head at the soft area of a winding drum of the coiler comprises the following steps:
the soft area interval of the coiler mandrel is widened, and the positioning accuracy of the strip steel head in the soft area of the coiler mandrel is improved.
The invention also provides a control device for reducing the transverse crease marks of the inner ring of the strip steel, which comprises:
the positioning unit is used for accurately positioning the head of the strip steel in a soft area of a winding drum of the winding machine;
the determining unit is used for determining the length of the wrapper strip steel of the belt wrapper, the wrapper tension and the dynamic tension of the unit during threading;
the belt wrapper is used for coiling the strip steel of which the head is accurately positioned in the soft area of the winding drum of the coiler according to the determined length and the wrapper tension of the wrapper;
and the coiling unit is used for continuously coiling the band steel which is subjected to the coil aiding according to the determined dynamic tension of the unit until the coiling work is finished.
As a further improvement of the present invention, the determination unit includes:
the first selection module is used for selecting the length of the coiling assisting strip steel of the belt coiling assisting device according to the type of the strip steel and the thickness of the strip steel;
the second selection module is used for selecting the winding assisting tension of the belt winding assisting device according to the type of the strip steel and the thickness of the strip steel;
the third selection module is used for selecting the dynamic tension of the unit according to the type of the strip steel and the thickness of the strip steel;
the building module is used for building a data relation between the tension and the number of impressed turns of the inner layer of the steel coil when the strip steel passes through the coiling machine;
and the determining module is used for determining the coiling assisting strip steel length, the coiling assisting tension and the dynamic tension of the unit of the belt coiling assistor during strip threading according to the data relation between the tension of the strip steel threading coiler and the impression turns of the inner layer of the steel coil.
As a further improvement of the present invention, the positioning unit includes:
the point-shaped laser sensor is used for monitoring the relative position of the head of the strip steel away from the coiling machine;
and the driving module is used for driving the winding drum to start rotating when the head of the strip steel reaches the designated position, and controlling the positioning speed of the soft area of the winding drum according to the synchronous transmission time sequence, so that the head of the strip steel is accurately positioned in the soft area of the winding drum of the coiling machine.
As a further improvement of the present invention, the driving module includes:
the setting submodule is used for setting a plurality of winding drum soft area positioning modes aiming at different winding drum sizes and different winding modes;
and the selection submodule is used for selecting a proper positioning mode from the multiple winding drum soft area positioning modes according to the thickness of the strip steel, the type of the used winding drum and a proper winding mode to perform time sequence optimization positioning on the soft area on the winding drum.
As a further improvement of the invention, the apparatus comprises:
the width of the soft area of the winding drum is more than 20mm and less than or equal to 30 mm.
The invention also provides control equipment for reducing the transverse crease marks of the inner ring of the strip steel, which comprises a processor and a memory; wherein,
the memory for storing machine executable instructions;
the processor is used for reading and executing the machine executable instructions stored in the memory so as to realize the control method for reducing the cross-folding marks of the inner ring of the strip steel.
The invention has the technical effects and advantages that:
the invention relates to a control method, a device and equipment for reducing transverse crease marks of an inner ring of strip steel, wherein the head of the strip steel is accurately positioned in a soft area of a winding drum of a coiler; determining the length of the wrapper strip steel of the belt wrapper, the wrapper tension and the dynamic tension of the unit when threading; according to the length and the winding tension of the winding band steel of the belt winding aid, winding the band steel of which the head is accurately positioned in the soft area of the winding drum of the coiler by the belt winding aid; and according to the dynamic tension of the unit, continuously carrying out unit coiling on the band steel which is subjected to the wrapper making until the coiling work is finished. Through the mode, the existing operation conditions of a factory area are fully utilized, the existing equipment is not required to be subjected to large technical transformation, the defect of transverse crease of an inner ring when the strip steel is threaded is obviously reduced under the condition of avoiding overhigh technical transformation investment, the yield of a unit is improved, the cost is reduced, the effect is obvious, and the competitiveness of the strip steel production is obviously improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
FIG. 1 is a flow chart of a control method for reducing the cross-crease of the inner ring of the strip steel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the defects of the prior art, the invention discloses a control method for reducing transverse crease marks of an inner ring of strip steel, which comprises the following key steps as shown in figure 1: accurately positioning the head of the strip steel in a soft area of a winding drum of a winding machine; determining the length of the wrapper strip steel of the belt wrapper, the wrapper tension and the dynamic tension of the unit when the belt is threaded; according to the determined length and the winding tension of the winding band steel of the belt winding aid, the band steel of which the head is accurately positioned in a soft area of a winding drum of the winding machine is subjected to primary winding by the belt winding aid; and according to the determined dynamic tension of the unit, continuously carrying out unit coiling on the band steel which is subjected to the coil aiding until the coiling work is finished. By the mode, the transverse crease defects generated by the inner ring of the strip steel when the strip steel is rewound by the recoiling unit are effectively reduced.
Specifically, the invention realizes the accurate positioning of the strip steel head in the soft area of the winding drum of the winding machine through the following technical improvements. Firstly, the invention changes the prior linear laser sensor for detecting the relative position of the head of the strip steel from the recoiling machine into the point-shaped laser sensor with less interference, thereby realizing that the point-shaped laser sensor can accurately detect the relative position of the head of the strip steel from the recoiling machine in time and feed back a detection signal to the recoiling machine in time when the head of the strip steel is conveyed to a specified position near the recoiling machine, and effectively avoiding the occurrence of false triggering. And then the coiling machine drives the winding drum to start to rotate, and the positioning speed control of the soft area of the winding drum is carried out at a set synchronous transmission time sequence in the rotating process (namely, the winding drum is controlled to rotate at a certain speed, and the soft area is positioned at a proper position at a proper time), so that the purpose is to ensure that the tape head is transmitted to the position where the tape head can be accurately positioned at the soft area of the winding drum finally, and therefore, in the subsequent coiling process, the defect of a large number of transverse creases of the inner ring caused by the bulge of the tape head can be effectively avoided. Secondly, when the positioning speed of the soft area of the winding drum is controlled by the set synchronous transmission time sequence, a plurality of winding drum soft area positioning modes aiming at different winding drum sizes and different winding modes are set; for example, when the positioning speed of the soft area of the winding drum is actually controlled, a proper positioning mode can be selected from the four soft area positioning modes of the winding drum to perform time sequence optimized positioning on the soft area of the winding drum according to the thickness of strip steel, the type of the used winding drum and a proper winding mode, so that the accuracy of the positioning of the soft area of the winding drum is further improved, and the head of the strip is ensured to be successfully positioned at the soft area of the winding drum. Thirdly, the invention also widens the soft area interval of the coiler mandrel to 30mm, thereby further improving the accuracy of the positioning of the belt head in the soft area.
Furthermore, when the threading of the recoiling unit is optimized, different lengths of the band steel wrapper, the coiling-assisting tension and the dynamic tension of the unit are selected according to the band steel type and the band steel thickness, the band steel is recoiled by using the different lengths and the coiling-assisting tension and the dynamic tension of the unit, and meanwhile, the data relation between the tension and the number of turns of the impressing of the inner layer of the band steel when the band steel is threaded through the recoiling machine is established by combining a method of mathematical statistical analysis; according to the established data relationship between the tension and the number of impressed turns of the inner layer of the steel coil, the length of the coiling-assisted strip steel of the belt coiling-assisted device, the coiling-assisted tension and the dynamic tension of the unit during threading are further determined, so that the belt coiling-assisted device coiling is carried out on the strip steel of which the head is accurately positioned in the soft area of the coiling block of the coiling machine according to the determined length of the coiling-assisted strip steel and the coiling-assisted tension; and after the auxiliary winding is finished, continuously winding the band steel which is subjected to auxiliary winding by the machine set according to the determined dynamic tension of the machine set until the winding work is finished. Through the mode, the invention successfully explores a novel reeling method capable of effectively reducing the cross-folding marks.
The invention also provides a control device for reducing the transverse crease marks of the inner ring of the strip steel, which comprises:
the positioning unit is used for accurately positioning the head of the strip steel in a soft area of a winding drum of the coiler;
the determining unit is used for determining the length of the wrapper strip steel of the belt wrapper during threading, the wrapper tension and the dynamic tension of the unit;
the belt wrapper is used for winding the strip steel of which the head is accurately positioned in the soft area of the winding drum of the winding machine according to the determined length and tension of the wrapper strip steel of the belt wrapper;
and the coiling unit is used for continuously performing unit coiling on the band steel which is subjected to wrapper assisting according to the determined dynamic tension of the unit until the coiling work is finished.
Furthermore, the device can also comprise a winding drum with a widened soft area, specifically, the winding drum with the width of the soft area of the existing winding drum which is only 20mm can be set to be a winding drum of a coiler with the width of the soft area of the winding drum which is more than 20mm and less than or equal to 30mm, so that the positioning precision of the strip steel head in the soft area of the winding drum is further improved.
Specifically, the determining unit further comprises three selecting modules, an establishing module and a determining module; wherein,
the first selection module is used for selecting the length of the coiling assisting strip steel of the belt coiling assistor according to the type of the strip steel and the thickness of the strip steel; the second selection module is used for selecting the winding assisting tension of the belt winding assisting device according to the type of the strip steel and the thickness of the strip steel; the third selection module is used for selecting the dynamic tension of the unit according to the type of the strip steel and the thickness of the strip steel; the building module is used for building a data relation between the tension of the strip steel threading coiler and the number of impressed turns of the inner layer of the steel coil; and the determining module is used for determining the coiling assisting strip steel length, the coiling assisting tension and the dynamic tension of the unit of the belt coiling assisting device during strip threading according to the data relation between the tension of the strip steel threading coiling machine and the number of impressed turns of the inner layer of the steel coil.
Specifically, the positioning unit comprises a point laser sensor and a driving module; wherein,
the point laser sensor is used for monitoring the relative position of the head of the strip steel away from the coiling machine; and the driving module is used for driving the winding drum to start rotating when the head of the strip steel reaches the designated position, and controlling the positioning speed of the soft area of the winding drum in a synchronous transmission time sequence, so that the head of the strip steel is accurately positioned in the soft area of the winding drum of the coiling machine.
Specifically, the driving module comprises a setting submodule and a selecting submodule; wherein,
the setting submodule is used for setting a plurality of winding drum soft area positioning modes aiming at different winding drum sizes and different winding modes; and the selection submodule is used for selecting a proper positioning mode from the multiple winding drum soft area positioning modes according to the thickness of the strip steel, the type of the used winding drum and a proper winding mode to perform time sequence optimization positioning on the soft area on the winding drum.
The invention also provides control equipment for reducing the transverse crease marks of the inner ring of the strip steel, which comprises a processor and a memory; wherein the memory is used for storing machine executable instructions; and the processor is used for reading and executing the machine executable instructions stored in the memory so as to realize the control method for reducing the cross-folding marks of the inner ring of the strip steel.
The following describes in detail the effects of the control method for reducing the cross-crease mark of the inner ring of the strip steel provided by the invention with reference to specific embodiments:
(1) In 2019, in 6 months, a scheme feasibility theory and an actual test are carried out, and equipment and spare parts which need to be upgraded and improved are declared; A. the linear laser sensor used for detecting the tape head is changed into a point laser sensor, so that the interference is effectively reduced, the false triggering is avoided, and the soft area positioning accuracy is improved; B. the sleeve with the soft area interval of 20mm of the original flexible sleeve is changed into the sleeve with the soft area interval of 30mm of the flexible sleeve.
(2) And in 1 month 2020, the improved spare parts are installed, and the time sequence design optimization positioning is carried out again on four soft area positioning modes (phi 508mm upper reeling positioning mode logic, phi 508mm lower reeling positioning mode, phi 610mm upper reeling positioning mode and phi 610mm lower reeling positioning mode).
(3) In 2 months in 2020, the incoming materials of the unit are respectively increased according to the types of the strip steel (including high-strength coil and continuous uncoiling) and the thickness of the strip steel:
A. the length selection mode of the wrapper strip steel of the belt wrapper is selected;
B. a belt wrapper tension (static tension) selection mode;
C. and selecting a dynamic tension selection mode of the winding machine during threading.
(4) And in the period from 2 to 5 months in 2020, testing and debugging the set control program and gradually stabilizing the use effect until the target value is reached.
Specifically, because of the limitation of the supplied material specification, the present embodiment tests strip steels (continuous unwinding and high strength winding) with thickness h less than or equal to 1.2mm and thickness h less than or equal to 2.0mm2 specifications, and selects a reasonable positioning mode according to the thickness of the strip steel, the type of the inner ring winding drum required by the user, and the required winding mode. Such as: in the embodiment, a winding positioning mode control logic on a phi 508mm winding drum is added. The soft area on the winding drum is positioned, and then the head of the strip steel is stably conveyed to the soft area of the winding drum. In addition, the embodiment reasonably regulates and controls the length of the coiling strip steel, the coiling tension and the dynamic tension of the unit of the coiling machine during threading, and finally determines the optimal threading way as follows: and (3) coiling the first 3 circles (8 meters (the thickness h is less than or equal to 1.2 mm) -10 meters (the thickness h is more than 1.2 mm)) of strip steel when the strip steel enters the coiling machine, coiling the high-strength coil by 10 meters (the thickness h is less than or equal to 1.2 mm) -14 meters (the thickness h is more than 1.2 mm)) by adopting (1.05-1.3) 300N micro tension (static tension), removing the belt wrapper after the length reaches a set value, and setting the dynamic value range of the dynamic tension of the unit according to a test result until the coiling work is finished. Finally, the method is observed and found to effectively reduce the transverse crease defects of the inner ring of the strip steel. Specifically, as shown in table 1 below: after the measures are taken, the transverse folding mark of the strip steel in the inner ring of the rewinding inspection unit is reduced from about 100 meters per roll to 26.2 meters per roll at present. The method has the advantages that the existing operation conditions are skillfully utilized, the existing equipment is not required to be greatly technically improved, the increase of technical improvement investment is avoided, the unit yield is improved, the cost reduction and efficiency improvement effects are obvious, and the enterprise market competitiveness is improved.
Table 1: average length of transverse crease marks of inner ring of improved strip steel
In summary, the control method, the control device and the control equipment for reducing the transverse crease marks of the inner ring of the strip steel have the advantages that the head of the strip steel is accurately positioned in a soft area of a winding drum of a winding machine; determining the length of the wrapper strip steel of the belt wrapper, the wrapper tension and the dynamic tension of the unit when threading; according to the length and the winding tension of the winding band steel of the belt winding aid, winding the band steel of which the head is accurately positioned in the soft area of the winding drum of the coiler by the belt winding aid; and according to the dynamic tension of the unit, continuously carrying out unit coiling on the band steel which is subjected to the coil aiding until the coiling work is finished. Through the mode, the existing operation conditions of a factory area are fully utilized, the existing equipment is not required to be subjected to large technical transformation, the defect of transverse crease of an inner ring when the strip steel is threaded is obviously reduced under the condition of avoiding overhigh technical transformation investment, the yield of a unit is improved, the cost is reduced, the effect is obvious, and the competitiveness of the strip steel production is obviously improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (11)
1. A control method for reducing transverse crease marks of an inner ring of a strip steel comprises the following steps:
accurately positioning the head of the strip steel in a soft area of a winding drum of a winding machine;
determining the length of the wrapper strip steel of the belt wrapper, the wrapper tension and the dynamic tension of the unit when threading;
according to the length and the winding tension of the winding band steel of the belt winding aid, winding the band steel of which the head is accurately positioned in the soft area of the winding drum of the coiler by the belt winding aid;
and according to the dynamic tension of the unit, continuously carrying out unit coiling on the band steel after the coil aiding is finished until the coiling work is finished, thereby reducing the transverse crease marks of the inner ring of the band steel.
2. The control method for reducing the cross-hatching of the inner ring of the strip steel as claimed in claim 1, wherein the determining the length of the wrapper strip steel of the belt wrapper, the wrapper tension and the dynamic tension of the unit during threading comprises the steps of:
selecting the length of the coiling-assistant strip steel of the belt coiling-assistant device, the coiling-assistant tension and the dynamic tension of the unit according to the type of the strip steel and the thickness of the strip steel, thereby establishing the data relation between the tension and the number of impressing turns of the inner layer of the steel coil when the strip steel passes through the coiling machine;
and determining the length of the coiling-assistant strip steel of the belt coiling-assistant device, the coiling-assistant tension and the dynamic tension of the unit during the strip threading according to the data relationship between the tension of the strip steel threading coiling machine and the number of impressed turns of the inner layer of the steel coil.
3. The control method for reducing the cross-hatching of the inner ring of the strip steel according to claim 1 or 2, wherein the step of accurately positioning the head of the strip steel in the soft zone of the winding drum of the winding machine comprises the following steps:
monitoring the relative position of the head of the strip steel from the coiling machine by using a point laser sensor;
when the head of the strip steel reaches a designated position, the winding drum is driven to rotate, and the synchronous transmission time sequence is used for controlling the positioning speed of the soft area of the winding drum, so that the head of the strip steel is accurately positioned in the soft area of the winding drum of the coiling machine.
4. The control method for reducing the cross-hatching of the inner ring of the strip steel as claimed in claim 3, wherein the synchronous transmission timing sequence for controlling the positioning speed of the soft area of the winding drum comprises the following steps:
setting a plurality of winding drum soft area positioning modes aiming at different winding drum sizes and different winding modes;
and selecting a proper positioning mode from the multiple reel soft area positioning modes according to the thickness of the strip steel, the type of the used reel and a proper reeling mode to perform time sequence optimization positioning on the soft area on the reel.
5. The control method for reducing the cross-hatching of the inner ring of the strip steel as claimed in claim 1, wherein said aligning the head of the strip steel at the soft zone of the winding drum of the coiler comprises:
the soft area interval of the coiler mandrel is widened, and the positioning accuracy of the strip steel head in the soft area of the coiler mandrel is improved.
6. A control device for reducing transverse crease marks of an inner ring of a strip steel, the device comprising:
the positioning unit is used for accurately positioning the head of the strip steel in a soft area of a winding drum of the winding machine;
the determining unit is used for determining the length of the wrapper strip steel of the belt wrapper, the wrapper tension and the dynamic tension of the unit during threading;
the belt wrapper is used for coiling the strip steel of which the head is accurately positioned in the soft area of the winding drum of the coiler according to the determined length and the wrapper tension of the wrapper;
and the coiling unit is used for continuously coiling the band steel which is subjected to the coil aiding according to the determined dynamic tension of the unit until the coiling work is finished.
7. The control device for reducing the cross-hatching of the inner ring of the strip steel according to claim 6, wherein the determination unit comprises:
the first selection module is used for selecting the length of the coiling assisting strip steel of the belt coiling assisting device according to the type of the strip steel and the thickness of the strip steel;
the second selection module is used for selecting the coiling tension of the belt coiling aid according to the type of the strip steel and the thickness of the strip steel;
the third selection module is used for selecting the dynamic tension of the unit according to the type and the thickness of the strip steel;
the building module is used for building a data relation between the tension of the strip steel threading coiler and the number of impressed turns of the inner layer of the steel coil;
and the determining module is used for determining the coiling assisting strip steel length, the coiling assisting tension and the dynamic tension of the unit of the belt coiling assisting device during strip threading according to the data relation between the tension of the strip steel threading coiling machine and the number of impressed turns of the inner layer of the steel coil.
8. The control device for reducing the cross-hatching of the inner ring of the strip steel according to claim 6 or 7, wherein the positioning unit comprises:
the point-shaped laser sensor is used for monitoring the relative position of the head of the strip steel away from the coiling machine;
and the driving module is used for driving the winding drum to start rotating when the head of the strip steel reaches the designated position, and controlling the positioning speed of the soft area of the winding drum in a synchronous transmission time sequence, so that the head of the strip steel is accurately positioned in the soft area of the winding drum of the coiling machine.
9. The control device for reducing the strip steel inner ring crossfold mark according to claim 8, wherein the driving module comprises:
the setting submodule is used for setting a plurality of winding drum soft area positioning modes aiming at different winding drum sizes and different winding modes;
and the selection submodule is used for selecting a proper positioning mode from the multiple winding drum soft area positioning modes according to the thickness of the strip steel, the type of the used winding drum and a proper winding mode to perform time sequence optimization positioning on the soft area on the winding drum.
10. The control device for reducing the cross-hatching of the inner ring of the strip steel according to claim 6, wherein the device comprises:
the width of the winding drum is more than 20mm and less than or equal to 30 mm.
11. A control device for reducing the cross crease of the inner ring of a strip steel comprises a processor and a memory; wherein,
the memory to store machine executable instructions;
the processor being configured to read and execute machine executable instructions stored by the memory to implement the method of any one of claims 1 to 5.
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| CN119771926A (en) * | 2025-02-21 | 2025-04-08 | 广西钢铁集团有限公司 | Control method for improving the head mark of cold-rolled strip coiler |
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| CN115351116B (en) | 2025-12-05 |
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