CN107442580B - Automatic winding device for rolling plate and strip and application method thereof - Google Patents
Automatic winding device for rolling plate and strip and application method thereof Download PDFInfo
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- CN107442580B CN107442580B CN201710605303.XA CN201710605303A CN107442580B CN 107442580 B CN107442580 B CN 107442580B CN 201710605303 A CN201710605303 A CN 201710605303A CN 107442580 B CN107442580 B CN 107442580B
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- 238000004804 winding Methods 0.000 title claims abstract description 117
- 238000005096 rolling process Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 144
- 239000010959 steel Substances 0.000 claims abstract description 144
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000006073 displacement reaction Methods 0.000 claims description 44
- 238000005520 cutting process Methods 0.000 claims description 12
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 10
- 238000005259 measurement Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
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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 OR PROFILES, 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
- B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
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- Mechanical Engineering (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
The invention provides an automatic reeling device for rolling a plate and a strip and a use method thereof, comprising the following steps: two horizontal carrier rollers are used for supporting the steel coil; the diameter measuring device is arranged between the two horizontal carrier rollers and is used for measuring the coil diameter of the steel coil; the horizontal carrier roller and the diameter measuring device are arranged on the carrier roller support; the feeding trolley is arranged on the track and can move along the track so as to enable the automatic winding device to be close to or far away from the uncoiler winding drum; the driving mechanism is fixed on the feeding trolley; one end of the driving mechanism is connected with the carrier roller support and is used for driving the carrier roller support to do lifting movement; the automatic control device is at least connected with the diameter measuring device and the driving mechanism, calculates the coil diameter of the steel coil and the upward moving distance of the steel coil by using information from the diameter measuring device, and feeds back the result to the driving mechanism so as to realize the centering of the steel coil and the coiling block of the uncoiler. The invention has simpler structure, higher integration level, difficult interference, higher operation convenience and higher safety, and can measure the coil diameter immediately after the steel coil is put on the coil.
Description
Technical Field
The invention relates to the technical field of automatic control of plate and strip rolling, in particular to an automatic winding device for plate and strip rolling and a using method thereof.
Background
In the production process of strip rolling, both cold rolling and flattening operations, a reeling process is required. The winding-up process is a process of transporting the strip coil to the reel of the unwinder by the winding device.
With the increase of the production line speed, the increase of the production efficiency and the continuous increase of the labor cost, the automatic winding is more and more important. The automatic winding technology can improve the efficiency of the whole production line, obviously reduce human accidents and the number of workers, thereby achieving the purposes of reducing cost and increasing yield.
The key technical point of the automatic winding technology is to measure the coil diameter and align the center of the steel coil with the center of the uncoiler winding drum, namely 'diameter measurement and centering', and in addition, the coil diameter is tightly connected with the tension of the uncoiler set by a machine set, so that the accurate measurement of the coil diameter is very important.
At present, the traditional method for measuring diameter and centering is realized by adopting a correlation photoelectric switch matched with a laser ranging sensor, and the centering is realized by controlling the height by a sensor in a lifting oil cylinder, and the defect is that: the measuring process is complex, and the winding diameter can be measured by lifting the winding trolley to a certain height after the winding trolley moves to a certain position; the detection elements are all exposed to the outside, so that the detection elements are easy to interfere; the diameter measuring device is an external mechanism, occupies a certain space and has influence on the operation of the steel coil transportation. In addition, there are other automatic reeling techniques that are implemented by controlling the gap between the inner ring of the reel and the reel of the unwinder, which, although relatively simple, do not have the function of measuring the diameter.
Accordingly, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to overcome the defect of low manual winding efficiency in the prior art; the existing automatic winding process is complex, complex in steps and low in efficiency; the existing automatic winding device has the problems of complex structure, large occupied space and the like, and provides the automatic winding device for rolling the plate and the strip and a use method thereof. The automatic winding device is simpler in structure, higher in integration level, more convenient to operate and higher in safety.
In order to achieve the above object, the present invention provides the following technical solutions:
an automatic winding device for strip rolling, the automatic winding device comprising: two horizontal carrier rollers are used for supporting the steel coil; the diameter measuring device is arranged between the two horizontal carrier rollers and can elastically stretch and retract along the vertical direction and is used for measuring the coil diameter of the steel coil; the horizontal carrier roller and the diameter measuring device are arranged on the carrier roller support, and the carrier roller support plays a role in supporting and fixing the horizontal carrier roller and the diameter measuring device; the feeding trolley is arranged on the track and can move along the track so as to enable the automatic winding device to be close to or far away from the uncoiler winding drum; the driving mechanism is fixed on the feeding trolley; one end of the driving mechanism is connected with the lower surface of the carrier roller support and is used for driving the carrier roller support to do lifting movement; and the automatic control device is at least connected with the diameter measuring device and the driving mechanism, calculates the coil diameter of the steel coil and the upward moving distance of the steel coil by utilizing information from the diameter measuring device, and feeds back the result to the driving mechanism so as to realize the centering of the steel coil and the coiling block of the uncoiler.
In the automatic winding device for rolling a strip as described above, it is further preferable that the automatic control device is a PLC; more preferably, the automatic control device includes: the electric control unit calculates the coil diameter of the steel coil and the upward moving distance of the steel coil by utilizing the information from the diameter measuring device and feeds back the result to the driving mechanism so as to realize the centering of the steel coil and the coiling block of the uncoiler; further preferably, the information from the calliper means is: the shortest distance H from the lowest point of the steel coil on the horizontal carrier roller to the horizontal plane where the highest point of the horizontal carrier roller is located; the calculation method of the upward moving distance of the steel coil comprises the following steps:
firstly, calculating the coil diameter 2R of the steel coil according to the formula (1):
in the formula (1): r is the radius of the steel coil, R is the radius of the horizontal carrier roller, and L is the distance between the center points of the two horizontal carrier rollers; h is: after a steel coil is placed on an automatic winding device, the shortest distance from the lowest point of the steel coil to the horizontal plane where the highest point of the horizontal carrier roller is located;
then, the distance X of the upward movement of the steel coil is calculated by the formula (2):
X=A-B-R+H, equation (2)
In the formula (2): a is the distance from the center of the uncoiler winding drum to the track surface; b is: the distance from the highest point of the horizontal carrier roller to the track surface is the distance from the highest point of the horizontal carrier roller to the track surface in the completely retracted state of the driving mechanism; r is the radius of the steel coil; h is: after a steel coil is placed on an automatic winding device, the shortest distance from the lowest point of the steel coil to the horizontal plane where the highest point of the horizontal carrier roller is located;
the electric control unit feeds back the calculated distance X of the upward movement of the steel coil to the driving mechanism, and the driving mechanism enables the steel coil to ascend by the distance X.
In the automatic winding device for rolling a plate and a strip as described above, it is further preferable that the two horizontal idlers have the same specification and size; the two horizontal carrier rollers are respectively and fixedly arranged at two end parts of the carrier roller support, and the axis of the horizontal carrier roller is parallel to the axis of the uncoiler winding drum; the two horizontal carrier rollers are symmetrically arranged and have the same height; more preferably, the carrier roller support comprises a base and a support frame, wherein the support frame is fixedly arranged at two end parts of the upper surface of the base, and the top end surface shape of the support frame is matched with the shape of the lower roller surface of the horizontal carrier roller; the horizontal carrier roller is arranged on the top end face of the supporting frame.
In the automatic winding device for strip rolling as described above, it is further preferable that the highest point of both the horizontal idlers is lower than the highest point of the diameter measuring device in the absence of any external force; more preferably, the axis of the calliper means is perpendicular to the axis of the unwinder reel.
In the automatic winding device for strip rolling as described above, it is further preferable that the diameter measuring device includes: the elastic assembly and the diameter measuring displacement sensor are arranged on the carrier roller support, wherein the bottom end of the elastic assembly is fixed on the carrier roller support; a diameter measuring displacement sensor is arranged in the elastic component and is used for measuring the change amount of the elastic component after the elastic component is subjected to external pressure; more preferably, the elastic assembly includes: cutting boards, guide sleeves and springs; the spring is sleeved on the periphery of the diameter measuring displacement sensor, one end of the spring is fixed on the lower surface of the cutting board, the other end of the spring is fixed on the carrier roller support, and the spring is positioned in the guide sleeve; the chopping board is connected with the upper part of the guide sleeve; the upper end of the diameter measuring displacement sensor is connected with the cutting board, and the lower end of the diameter measuring displacement sensor is connected with the upper surface of the carrier roller support.
In the automatic reeling device for plate and strip rolling as described above, it is further preferable that the diameter measuring device further includes a diameter measuring bracket, which is closely attached to a middle lower portion of an outer side surface of the guide sleeve, and a lower end of the diameter measuring bracket is fixed on an upper surface of the carrier roller support; more preferably, the bottom end of the guide sleeve is a hook part, and when the diameter measuring device does not receive external force, the hook part of the guide sleeve is clamped at a preset position on the inner side of the diameter measuring bracket so as to control the highest point of the diameter measuring device to be higher than the highest points of the two horizontal carrier rollers; further preferably, the caliper displacement sensor is a magnetostrictive displacement sensor.
In the automatic rolling device for plate and strip rolling as described above, it is further preferable that the driving structure is a lift cylinder drive including a cylinder body, a piston connected to a piston rod in the cylinder body, and a cylinder displacement sensor provided at a lower portion in the cylinder body, a head portion of the piston being fixed to a lower surface of the carrier roller support by a fixing member, the cylinder body being fixed to the loading trolley; the oil cylinder displacement sensor is used for detecting the moving distance of the lifting oil cylinder drive and feeding back the detection result to the automatic control device.
In the automatic winding device for strip rolling as described above, it is further preferable that the automatic winding device further includes: a guide lifting frame; the guide lifting frame body is sleeved on the periphery of the driving structure, and the lower end of the guide lifting frame body is connected with the feeding trolley; more preferably, the feeding trolley is further provided with a traveling device for controlling the horizontal movement and the vertical movement of the feeding trolley.
A method of use of an automatic reeling device for strip rolling, the method of use comprising:
a step of determining a reference zero position, namely compressing the top of the diameter measuring device until the top of the diameter measuring device is equal to the highest point of two horizontal carrier rollers, and determining a numerical value measured by a diameter measuring displacement sensor of the diameter measuring device as the reference zero position for formally measuring the coil diameter of the steel coil at the moment;
and (3) a step of receiving and measuring the diameter: placing the steel coil on a material level saddle, and jacking up the steel coil at the top end of the automatic winding device; at this time, the distance between the lowest point of the steel coil measured by the diameter measuring displacement sensor of the diameter measuring device and the reference zero position is H, the value H is transmitted to the electric control device, and the electric control device calculates and determines the radius R of the steel coil through the formula (1):
in the formula (1): the radius of the steel coil is R, the radius of the horizontal carrier roller is R, and the distance between the center points of the two horizontal carrier rollers is L; the distance between the lowest point of the steel coil supported by the automatic winding device and the reference zero position is H;
and (3) coil supporting and centering: firstly, the electric control device calculates the distance X of the upward movement of the steel coil through the formula (2): X=A-B-R+H, equation (2)
In the formula (2): a is the distance from the center of the uncoiler winding drum to the track surface; b is: the distance from the highest point of the horizontal carrier roller to the track surface is the distance from the highest point of the horizontal carrier roller to the track surface in the completely retracted state of the driving mechanism; r is the radius of the steel coil; h is: the distance between the lowest point of the steel coil supported by the automatic winding device and the reference zero position is H; then, the electric control unit feeds back the calculated distance X for the upward movement of the steel coil to the driving mechanism, and the driving mechanism enables the steel coil to rise by the distance X, so that the centering of the center of the steel coil and the center of the winding drum is completed.
In the method of using an automatic winding apparatus for strip rolling as described above, it is further preferable that the method of using further includes: after the coil supporting centering is finished, starting a feeding trolley, namely, approaching the steel coil to a coiling block of an uncoiler, and finally sleeving the steel coil on the coiling block, wherein the stop position of the feeding trolley is that the center point of the steel coil coincides with the center point of the coiling block; starting an automatic centering device on the uncoiler, and adjusting the position of the steel coil on the winding drum; and (3) retracting the automatic winding device, wherein after the horizontal winding is completed, the driving mechanism of the automatic winding device is retracted, the feeding trolley is retracted to the initial position of the feeding trolley before the horizontal winding is completed.
Compared with the closest prior art, the technical scheme provided by the invention has the following excellent effects:
the automatic winding device provided by the invention has the advantages of simpler structure, higher integration level, difficult interference, capability of measuring the winding diameter immediately after the steel coil is put on, more convenience and higher safety. By the automatic winding device and the automatic winding control method, the winding diameter of the steel coil can be measured immediately while the winding is connected, the diameter measurement and centering process can be completed at one time almost without pause time, complicated steps of external measurement are avoided, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of an automatic winding device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the diameter measuring device in FIG. 1;
fig. 3 is a schematic diagram of calculating a radius of a steel coil in the automatic winding control method according to the embodiment of the present invention;
fig. 4 is a schematic calculation diagram of a distance X for upward adjustment of a steel coil when a lifting cylinder is in a fully retracted state in the automatic winding control method according to the embodiment of the present invention.
In the figure: 1-a diameter measuring device; 11-cutting boards; 12-a guide sleeve; 13-a spring; 14-a diameter measuring bracket; 15-a caliper displacement sensor; 2-horizontal carrier rollers; 3-supporting roller supports; 31-a supporting frame; 4-guiding the lifting frame body; 5-a feeding trolley; 51-wheels; 52-an axle; 53-lifting holes; 54-a body frame; 6-track; 61-bolts; 7-lifting oil cylinder driving; 71-pin shafts; 72-cylinder body; 8-an oil cylinder displacement sensor; 9-steel coil; 10-winding drum.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
The invention will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.
As shown in fig. 1 and 2, the present invention provides an automatic winding device for rolling a strip. The automatic winding device is a device for loading steel coils on a winding drum of an uncoiler on a plate and strip production line. The automatic winding device comprises: two horizontal carrier rollers 2, the two horizontal carrier rollers 2 are used for supporting a steel coil ready to be mounted on a coiling block of an uncoiler; the diameter measuring device 1 is arranged between two horizontal carrier rollers 2, and the diameter measuring device 1 can elastically stretch along the axial direction (or vertical direction) of the diameter measuring device, is used for measuring the coil diameter of a steel coil, and is particularly used for measuring the shortest distance H between the lowest point of the steel coil and the horizontal plane where the highest point of the horizontal carrier rollers is positioned when the steel coil is positioned on the horizontal carrier rollers; the carrier roller support 3, the horizontal carrier roller 2 and the diameter measuring device 1 are arranged on the carrier roller support 3, and the carrier roller support 3 plays a role in supporting and fixing the horizontal carrier roller 2 and the diameter measuring device 1; the feeding trolley 5 is arranged on the track 6 and can move along the track 6 so as to enable the automatic winding device to be close to or far away from the uncoiler winding drum; the driving mechanism is fixed on the feeding trolley 5; one end of the driving mechanism is connected with the lower surface of the carrier roller support 3 and is used for driving the carrier roller support 3 to do lifting movement; the automatic control device is at least connected with the diameter measuring device 1 and the driving mechanism, calculates the coil diameter of the steel coil and the distance X of the upward movement of the steel coil by using information from the diameter measuring device 1, and feeds back the result to the driving mechanism so as to realize the centering of the steel coil and the coiling block of the uncoiler.
In a specific embodiment of the invention, the inner diameter refers to the diameter of the inner wall and the outer diameter refers to the diameter including the skin thickness. The coil diameter in this embodiment refers to the outer diameter of the steel coil. Preferably, the automatic control device of the present embodiment is a PLC (programmable logic controller), and more preferably, the automatic control device includes: and the electric control unit is used for receiving the information from the diameter measuring device 1, calculating the coil diameter of the steel coil and the upward moving distance X of the steel coil by using the information and feeding back the result to the driving mechanism so as to realize the centering of the steel coil and the uncoiler winding drum.
The information from the calliper 1 is: the shortest distance H from the lowest point of the steel coil on the horizontal carrier roller to the horizontal plane where the highest point of the horizontal carrier roller is located; that is, after the steel coil is placed on the automatic winding device, the data difference between the lowest point data of the steel coil measured by the diameter measuring displacement sensor and the reference zero position is H, and the reference zero position is: and compressing the top of the diameter measuring device until the top of the diameter measuring device is equal to the highest point of the two horizontal carrier rollers, wherein the value measured by the diameter measuring displacement sensor of the diameter measuring device is D, and determining the value as a reference zero position for formally measuring the coil diameter of the steel coil. The calculation method of the upward moving distance of the steel coil comprises the following steps:
first, the diameter 2R of the coil is calculated by the formula (1):
in the formula (1): r is the radius of a steel coil, R is the radius of the horizontal carrier roller 2, and L is the center distance between the two horizontal carrier rollers 2; h is: after the steel coil is placed on the automatic winding device, the distance between the lowest point of the steel coil and the reference zero position;
then, the distance X from the center point of the steel coil to the center of the reel (i.e. the distance the steel coil moves upwards) is calculated by the formula (2):
X=A-B-R+H, equation (2)
In the formula (2): a is the distance from the center of the winding drum to the surface 6 of the track; b is: in the fully retracted state, the lifting cylinder drive 7 is positioned at the distance from the highest point of the horizontal carrier roller 2 to the surface of the track 6; r is the radius of the steel coil; h is: after the steel coil is placed on the automatic winding device, the distance between the lowest point of the steel coil and the reference zero position (or the shortest distance between the lowest point of the steel coil and the horizontal plane where the highest point of the horizontal carrier roller is located after the steel coil is placed on the automatic winding device);
the distance X is the distance that the automatic winding device can move after jacking up the steel coil and sleeving the steel coil on the winding drum, so that the center of the winding drum is overlapped with the center of the steel coil.
The electric control unit feeds the calculated distance X back to the driving mechanism, and the driving mechanism enables the steel coil to ascend by the distance X.
In the specific embodiment of the invention, the number of the horizontal carrier rollers 2 is two; the two horizontal carrier rollers 2 have the same specification and size; the two horizontal carrier rollers 2 are respectively and fixedly arranged at two end parts of the carrier roller support 3, and the axial direction of the horizontal carrier rollers 2 is parallel to the axial direction of the uncoiler winding drum; the diameter measuring device 1 fixed on the carrier roller support 3 is positioned between the two horizontal carrier rollers 2, and a gap is reserved between the diameter measuring device 1 and the two horizontal carrier rollers 2, so that the diameter measuring device 1 has a space for moving up and down. Under the condition of no external force in a natural state, the highest point of the roller surfaces of the two horizontal carrier rollers 2 is slightly lower than the highest point of the top end surface of the diameter measuring device 1, so that the measuring accuracy is improved. Preferably, the carrier roller support 3 comprises a base and a support frame 31, the support frame 31 is fixedly arranged at two end parts of the upper surface of the base, the top end surfaces of the two support frames 31 are respectively matched with the shapes of the lower roller surfaces of the two horizontal carrier rollers 2, namely, the top end surfaces of the support frame 31 are arc-shaped groove designs and are matched with the radian of the roller surfaces of the horizontal carrier rollers 2, and the lower roller surfaces of the horizontal carrier rollers 2 can be clamped into the top end surfaces of the support frame 31, so that the carrier roller support 3 supports and fixes the horizontal carrier rollers 2 more firmly. The two horizontal carrier rollers 2 are symmetrically arranged relative to the axis of the diameter measuring device 1 and have the same height; the axis of the horizontal carrier roller 2 is parallel to the axis of the uncoiler drum; the axis of the calliper 1 is perpendicular to the axis of the unwinder reel. In order to further support the coil, a plurality of idlers may be provided on both sides of the two horizontal idlers 2.
The caliper device 1 includes: the elastic component and the diameter measuring displacement sensor 15, wherein the bottom end of the elastic component is fixed on the base of the carrier roller support 3; the elastic component is internally provided with a diameter measuring displacement sensor 15 which is used for measuring the change quantity of the elastic component after the elastic component is subjected to external pressure and transmitting the measured data to an electrical control unit of the PLC. In a specific embodiment of the present invention, the elastic assembly comprises: the cutting board 11, the guide sleeve 12 and the spring 13, wherein the spring 13 is sleeved on the periphery of the diameter measuring displacement sensor 15, the spring 13 is positioned in the guide sleeve 12, one end of the spring 13 is fixed on the lower surface of the cutting board 11, and the other end of the spring 13 is fixed on the upper surface of the base of the carrier roller support 3; the guide sleeve 12 protects the diameter measuring displacement sensor 15, and the diameter measuring device 1 has an automatic resetting function; the chopping block 11 is connected with the upper part of the guide sleeve 12, namely, the chopping block 11 is horizontally fixed at the upper end of the guide sleeve 12; the upper end of the diameter measuring displacement sensor 15 is connected with the chopping block 11, the lower end of the diameter measuring displacement sensor 15 is connected with the upper surface of the base of the carrier roller support 3, namely the upper end of the diameter measuring displacement sensor 15 is fixed on the lower surface of the chopping block 11, and the lower end of the diameter measuring displacement sensor 15 is fixed on the upper surface of the base of the carrier roller support 3.
In a specific embodiment of the present invention, in order to ensure the accuracy of measurement and the service life of the measuring device, it is further preferred that the diameter measuring device 1 further includes a diameter measuring bracket 14, the bottom end of the diameter measuring bracket is fixed on the upper surface of the base of the carrier roller support 3, the guiding sleeve 12 is sleeved inside the diameter measuring bracket 14, the bottom end of the guiding sleeve 12 is a hook-shaped part, and when the diameter measuring device 1 does not receive external force, the hook-shaped part of the guiding sleeve 12 is clamped at a predetermined position inside the diameter measuring bracket 14, so that the highest point of the upper surface of the chopping board 11 of the diameter measuring device 1 is controlled to be slightly higher than the highest point of the roller surfaces of the two horizontal carrier rollers 2. Specifically, the cross section of the guide sleeve 12 is in an L-shaped structure, the vertical section is tightly attached to the spring 13 and tightly attached to the inner wall surface of the diameter measuring bracket 14, that is, the guide sleeve 12 can slide along the inner wall surface of the diameter measuring bracket 14 along the vertical direction, the transverse section faces the opposite direction of the position of the spring 13 (that is, the transverse section extends towards the direction away from the central axis of the diameter measuring device 1), and the transverse section is an example of a hook-shaped part which is also tightly attached to the inner wall surface of the diameter measuring bracket 14; the section of the diameter measuring bracket 14 is composed of two L-shaped structures, the first L-shaped structure is clung to the outer surface of the guide sleeve 12, and the transverse section of the first L-shaped structure is consistent with the direction of the transverse section of the guide sleeve 12; the upper end of the vertical section of the second L-shaped structure is connected with the left end of the transverse section of the first L-shaped structure, the transverse section of the second L-shaped structure is consistent with the direction of orientation of the transverse section of the guide sleeve 12, and the transverse section of the second L-shaped structure is fixed on the upper surface of the carrier roller support 3. Still preferably, the two L-shaped structures of the caliper bracket 14 are integrally formed structures, and the caliper bracket 14 is shaped like a stair step.
In a specific embodiment of the present invention, it is further preferred that the diameter measuring device 1 further comprises a diameter measuring bracket 14, the diameter measuring bracket 14 is closely attached to the middle lower portion of the outer side surface of the guide sleeve 12, and the lower end of the diameter measuring bracket 14 is fixed on the upper surface of the carrier roller support 3. Still more preferably, the caliper displacement sensor 15 is a magnetostrictive displacement sensor. The upper end of the magnetic scale of the caliper displacement sensor 15 of this embodiment is connected to the lower surface of the anvil 11 (the magnetic scale can telescope within the sensor).
In the specific embodiment of the invention, the driving structure is a lifting oil cylinder driving 7, the lifting oil cylinder driving 7 comprises a cylinder body 72 and a piston connected with a piston rod in the cylinder body 72, and the head part of the piston exposed outside the cylinder body 72 is fixed on the lower surface of the carrier roller support 3 through a fixing piece; the lower part in the cylinder barrel body 72 is also provided with an oil cylinder displacement sensor 8 for detecting the moving distance of the lifting oil cylinder drive 7 and feeding back the detection result to the automatic control device; the cylinder body 72 of the lifting cylinder drive 7 is fixed on the feeding trolley 5. Preferably, a pin 71 is further arranged in the middle of the driving structure, and two ends of the pin 71 are connected with the body frame 54 of the feeding trolley 5 so as to fix the cylinder body 72 of the lifting cylinder driving 7 on the feeding trolley 5. The cylinder displacement sensor 8 arranged at the tail of the cylinder is in a built-in form, namely, a measuring magnetic ruler is arranged in the cylinder, a magnetic ring is arranged on a piston, and the upper end of the piston is connected with the carrier roller support 3.
In order to protect the drive lifting mechanism, the invention in a specific embodiment also comprises: a guide lifting frame 4; the guiding lifting frame body 4 is sleeved on the periphery of the driving structure, and the lower end of the guiding lifting frame body 4 is connected with the feeding trolley 5.
In the specific embodiment of the present invention, the loading trolley 5 includes a trolley body, a body frame 54, an axle 52, and wheels 51; the two ends of the axle 52 are respectively connected with a wheel 51, the wheel 51 is a wheel 51 with a groove, and the wheel 51 with the groove has a guiding function to prevent the wheel 51 from derailing when moving on the track 6. The rail 6 is fixed to the ground by bolts 61. The trolley body is located on an axle 52 and a body frame 54 is mounted to the trolley body for load bearing drive construction. Further preferably, a traveling device is further arranged on the feeding trolley 5 and used for controlling the feeding trolley 5 to move along the horizontal moving direction and move along the vertical direction. The walking device comprises a horizontal walking device and a vertical walking device. And a lifting hole 53 is further formed in the feeding trolley 5, so that the feeding trolley 5 can be lifted conveniently.
In order to further describe the technical solution of the present invention in detail, the specific embodiment of the present invention further provides a method for using an automatic winding device for rolling a strip (the distance between each structure is represented by the positions of the coil 9, the horizontal carrier roller 2, the winding drum 10 and the track 6 in the radial schematic diagram and the centering schematic diagram shown in fig. 3 and 4), the method for using the automatic winding device comprises the following steps:
1) Determining a reference zero position: after the automatic winding device is assembled, in a natural state, the top point of the cutting board 11 of the diameter measuring device 1 is higher than the highest point of the horizontal carrier roller 2;
a flat plate is placed on the two horizontal carrier rollers 2, the flat plate is pressed down, the flat plate is compressed until the top point of the cutting board 11 is equal to the highest point of the two horizontal carrier rollers 2 (the top point of the cutting board 11 and the top point of the horizontal carrier rollers 2 are positioned on the same horizontal line), at this time, the value measured by the diameter measuring displacement sensor 15 of the diameter measuring device 1 is D, and the value is determined as a reference zero position for formally measuring the coil diameter of the steel coil (the zero point calibration can be performed once in a plurality of days).
2) And (5) receiving and coiling to measure the diameter: the steel coil is placed on a material level saddle, the top end of an automatic winding device is jacked up to the lower part of the steel coil (the device jacks up the steel coil from bottom to top), namely a horizontal carrier roller 2 supports the steel coil from the lower part; at this time, the distance between the lowest point of the steel coil measured by the diameter measuring displacement sensor 15 of the diameter measuring device 1 and the reference zero position in the step 1) is H, the coil diameter of the steel coil is the diameter (2R) of the steel coil, and then the radius R of the steel coil is:
wherein: as shown in the diameter measuring schematic diagram in fig. 3, the radius of the steel coil is R, the radius of the horizontal carrier rollers 2 is R, and the center distance between the two horizontal carrier rollers 2 is L; the distance between the lowest point of the steel coil and the reference zero position is H;
the electric control unit determines the radius R of the steel coil through calculation by receiving the value H measured by the diameter measuring displacement sensor 15 of the diameter measuring device 1, and takes the radius R as important data for automatic reeling to be processed in the next step, and meanwhile, the radius R is also taken as important data for calculating the tension of the uncoiler to be provided for the transmission unit.
3) And (3) coil supporting centering: the elevation from the center of the winding drum to the surface of the track 6 is measured to be A (known value); the elevation from the highest point of the horizontal carrier roller 2 to the surface of the track 6 is measured as B under the state that the piston rod of the lifting cylinder drive 7 is completely retracted; then the distance X from the center point of the steel coil to the center of the winding drum when the automatic winding device bears the steel coil and the piston rod of the lifting cylinder drive 7 is in a fully retracted state is as follows:
X＝A-B-R+H
wherein: the elevation from the center of the winding drum to the surface of the track 6 is A, and the elevation from the highest point of the horizontal carrier roller 2 to the surface of the track 6 in the completely retracted state of the piston rod is B; the radius of the steel coil is R; the distance between the lowest point of the steel coil and the reference zero position is H;
the distance X is the distance that the automatic winding device can move after jacking up the steel coil and sleeving the steel coil on the winding drum, so that the center of the winding drum is overlapped with the center of the steel coil, and the centering process is completed;
the electrical control unit calculates the coil radius R according to the measured data H, see the centering principle shown in fig. 4, and feeds back the calculated X value to the cylinder displacement sensor 8, and controls the distance X by which the lift cylinder drive 7 is adjusted upward through the information obtained by the cylinder displacement sensor 8.
4) And (3) horizontally feeding rolls: after the steps are finished, a traveling device on the feeding trolley 5 is started (the traveling device is positioned at the tail part of the feeding trolley 5 and is driven by a hydraulic cylinder), a steel coil is sleeved on a winding drum, the stop of the feeding trolley 5 is controlled through a travel switch, and the stop position of the feeding trolley 5 is that the center point of the steel coil coincides with the center point of the winding drum; starting an automatic centering device on the uncoiler (because the uncoilers are all provided with the automatic centering device, the requirement on the width centering of the strip steel is not high), and adjusting the position of the steel coil on the winding drum;
after the steel coil is sleeved on the winding drum, the lifting oil cylinder of the automatic winding device drives the lifting oil cylinder 7 to retract, and the horizontal traveling device of the feeding trolley 5 is started to retract to the initial position, so that the automatic winding process is completed.
In summary, the present invention focuses on the "caliper centering" process, i.e. control in the vertical direction; regarding the control in the horizontal direction, i.e. the control in the width direction of the coil, since the uncoiler is generally provided with an automatic centering device, the coil can be easily controlled by a plurality of material level travel switches and a plurality of travel switches in the central position of the coiling block as long as the coil is ensured to be basically positioned in the center of the coiling trolley, and the invention is not described in detail.
In summary, the technical effects achieved by the technical scheme of the invention are as follows:
the automatic winding device provided by the invention has the advantages of simpler structure, higher integration level, difficult interference, capability of measuring the winding diameter immediately after the steel coil is put on, more convenience and higher safety. By the automatic winding device and the automatic winding control method, the winding diameter of the steel coil can be measured immediately while the winding is connected, the diameter measurement and centering process can be completed at one time almost without pause time, complicated steps of external measurement are avoided, and the working efficiency is improved.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (15)
1. An automatic winding device for rolling a strip, the automatic winding device comprising:
two horizontal carrier rollers are used for supporting the steel coil;
the diameter measuring device is arranged between the two horizontal carrier rollers and can elastically stretch and retract along the vertical direction and is used for measuring the coil diameter of the steel coil;
the horizontal carrier roller and the diameter measuring device are arranged on the carrier roller support, and the carrier roller support plays a role in supporting and fixing the horizontal carrier roller and the diameter measuring device;
the feeding trolley is arranged on the track and can move along the track so as to enable the automatic winding device to be close to or far away from the uncoiler winding drum;
the driving mechanism is fixed on the feeding trolley; one end of the driving mechanism is connected with the lower surface of the carrier roller support and is used for driving the carrier roller support to do lifting movement;
the automatic control device is connected with the diameter measuring device and the driving mechanism, calculates the coil diameter of the steel coil and the upward moving distance of the steel coil by utilizing information from the diameter measuring device, and feeds back the result to the driving mechanism so as to realize the centering of the steel coil and the coiling block of the uncoiler; the information from the calliper means is: the shortest distance H from the lowest point of the steel coil on the horizontal carrier roller to the horizontal plane where the highest point of the horizontal carrier roller is located;
the calculation method of the upward moving distance of the steel coil comprises the following steps:
firstly, calculating the coil diameter 2R of the steel coil according to the formula (1):
in formula (1): r is the radius of the steel coil, R is the radius of the horizontal carrier roller, and L is the distance between the center points of the two horizontal carrier rollers; h is: after a steel coil is placed on an automatic winding device, the shortest distance from the lowest point of the steel coil to the horizontal plane where the highest point of the horizontal carrier roller is located;
then, the distance X of the upward movement of the steel coil is calculated by the formula (2):
X=A-B-R+H, equation (2)
In formula (2): a is the distance from the center of the uncoiler winding drum to the track surface; b is: the distance from the highest point of the horizontal carrier roller to the track surface is the distance from the highest point of the horizontal carrier roller to the track surface in the completely retracted state of the driving mechanism; r is the radius of the steel coil; h is: after a steel coil is placed on an automatic winding device, the shortest distance from the lowest point of the steel coil to the horizontal plane where the highest point of the horizontal carrier roller is located;
the automatic control device feeds back the calculated distance X of the upward movement of the steel coil to the driving mechanism, and the driving mechanism enables the steel coil to ascend by the distance X;
the specification and the size of the two horizontal carrier rollers are consistent;
the two horizontal carrier rollers are respectively and fixedly arranged at two end parts of the carrier roller support, and the axis of the horizontal carrier roller is parallel to the axis of the uncoiler winding drum; the two horizontal carrier rollers are symmetrically arranged and have the same height;
the diameter measuring device includes: the elastic assembly and the diameter measuring displacement sensor are arranged on the carrier roller support, wherein the bottom end of the elastic assembly is fixed on the carrier roller support; and a diameter measuring displacement sensor is arranged in the elastic component and used for measuring the change quantity of the elastic component after the elastic component is subjected to external pressure.
2. An automatic winding device for rolling a strip as claimed in claim 1, wherein said automatic control device is a PLC.
3. An automatic winding device for rolling a strip as claimed in claim 2, wherein said automatic control device comprises: and the electric control unit calculates the coil diameter of the steel coil and the upward moving distance of the steel coil by utilizing information from the diameter measuring device and feeds back the result to the driving mechanism so as to realize the centering of the steel coil and the uncoiler winding drum.
4. The automatic rolling device for rolling the plate and strip according to claim 1, wherein the carrier roller support comprises a base and a support frame, the support frame is fixedly arranged at two ends of the upper surface of the base, and the top end surface shape of the support frame is matched with the shape of the lower roller surface of the horizontal carrier roller; the horizontal carrier roller is arranged on the top end face of the supporting frame.
5. An automatic rolling device for strip rolling as claimed in claim 4 wherein the highest point of both said horizontal idlers is lower than the highest point of said calliper means in the absence of any external force.
6. An automatic reeling device for strip rolling according to claim 5, characterized in that the axis of the calliper means is perpendicular to the axis of the reel of the decoiler.
7. An automatic winding device for rolling a strip as claimed in claim 1, wherein said elastic assembly comprises: cutting boards, guide sleeves and springs; the spring is sleeved on the periphery of the diameter measuring displacement sensor, one end of the spring is fixed on the lower surface of the cutting board, the other end of the spring is fixed on the carrier roller support, and the spring is positioned in the guide sleeve; the chopping board is connected with the upper part of the guide sleeve; the upper end of the diameter measuring displacement sensor is connected with the cutting board, and the lower end of the diameter measuring displacement sensor is connected with the upper surface of the carrier roller support.
8. The automatic rolling device for strip rolling of claim 7, further comprising a caliper bracket attached to a lower middle portion of the outer side surface of the guide sleeve, and a lower end of the caliper bracket is fixed to an upper surface of the idler support.
9. The automatic rolling device for rolling a plate and strip according to claim 8, wherein the bottom end of the guide sleeve is a hook portion, and when the diameter measuring device does not receive an external force, the hook portion of the guide sleeve is clamped at a preset position inside the diameter measuring bracket so as to control the highest point of the diameter measuring device to be higher than the highest points of the two horizontal carrier rollers.
10. An automatic reeling device for strip rolling according to claim 9 wherein the caliper displacement sensor is a magnetostrictive displacement sensor.
11. The automatic rolling device for plate and strip rolling according to claim 1, wherein the driving mechanism is a lifting cylinder drive, the lifting cylinder drive comprises a cylinder body, a piston connected with a piston rod in the cylinder body and a cylinder displacement sensor arranged at the lower part in the cylinder body, the head part of the piston is fixed on the lower surface of the carrier roller support by a fixing piece, and the cylinder body is fixed on the feeding trolley; the oil cylinder displacement sensor is used for detecting the moving distance of the lifting oil cylinder drive and feeding back the detection result to the automatic control device.
12. An automatic winding device for rolling a strip as claimed in claim 1, further comprising: a guide lifting frame;
the guide lifting frame body is sleeved on the periphery of the driving mechanism, and the lower end of the guide lifting frame body is connected with the feeding trolley.
13. The automatic rolling device for strip rolling as claimed in claim 12, wherein the feeding trolley is further provided with a traveling device for controlling horizontal movement and vertical movement of the feeding trolley.
14. A method of using an automatic winding device for strip rolling according to any one of claims 1 to 13, characterized in that it comprises:
a step of determining a reference zero position, namely compressing the top of the diameter measuring device until the top of the diameter measuring device is equal to the highest point of two horizontal carrier rollers, and determining a numerical value measured by a diameter measuring displacement sensor of the diameter measuring device as the reference zero position for formally measuring the coil diameter of the steel coil at the moment;
and (3) a step of receiving and measuring the diameter: placing the steel coil on a material level saddle, and jacking up the steel coil at the top end of the automatic winding device; at this time, the distance between the lowest point of the steel coil measured by the diameter measuring displacement sensor of the diameter measuring device and the reference zero position is H, the value H is transmitted to the automatic control device, and the automatic control device calculates and determines the radius R of the steel coil through the formula (1):
in formula (1): the radius of the steel coil is R, the radius of the horizontal carrier roller is R, and the distance between the center points of the two horizontal carrier rollers is L; the distance between the lowest point of the steel coil supported by the automatic winding device and the reference zero position is H;
and (3) coil supporting and centering: firstly, the automatic control device calculates the distance X of the upward movement of the steel coil through the formula (2): X=A-B-R+H, equation (2)
In formula (2): a is the distance from the center of the uncoiler winding drum to the track surface; b is: the distance from the highest point of the horizontal carrier roller to the track surface is the distance from the highest point of the horizontal carrier roller to the track surface in the completely retracted state of the driving mechanism; r is the radius of the steel coil; h is: the distance between the lowest point of the steel coil supported by the automatic winding device and the reference zero position is H; then, the automatic control device feeds back the calculated distance X for the upward movement of the steel coil to the driving mechanism, and the driving mechanism enables the steel coil to rise by the distance X, so that the centering of the center of the steel coil and the center of the winding drum is completed.
15. A method of using an automatic reeling device for strip rolling according to claim 14, wherein the method of using further comprises:
after the coil supporting centering is completed, starting a feeding trolley to enable the steel coil to approach to a coiling block of an uncoiler, and finally sleeving the steel coil on the coiling block, wherein the stop position of the feeding trolley is that the center point of the steel coil coincides with the center point of the coiling block; starting an automatic centering device on the uncoiler, and adjusting the position of the steel coil on the winding drum;
and (3) retracting the automatic winding device, wherein after the horizontal winding is completed, the driving mechanism of the automatic winding device is retracted, the feeding trolley is retracted to the initial position of the feeding trolley before the horizontal winding is completed.
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| CN107552594A (en) * | 2016-06-30 | 2018-01-09 | 宝山钢铁股份有限公司 | A kind of coil of strip height centering method and device |
| CN110586688B (en) * | 2019-09-09 | 2024-04-12 | 中冶南方工程技术有限公司 | Steel coil car and coil touch detection method thereof |
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