Steel coil centering auxiliary device of uncoiler and centering method

Abstract

The invention discloses an uncoiler steel coil centering auxiliary device and a centering method. The device comprises a support, a guide mechanism, a sliding measurement mechanism, a laser indication mechanism and a scale mechanism. The guide mechanism is fixed on the support, the sliding measurement mechanism is sleeved on the guide mechanism and can slide along the axial direction of the guide mechanism, the laser indication mechanism is installed on the sliding measurement mechanism, the scale mechanism is fixed on the support, and the scale direction is parallel to the axial direction of the guide mechanism. A pointer of the sliding measuring mechanism and the laser beam axis of the laser indicating mechanism are located in the same vertical plane perpendicular to the axis of the guiding mechanism. During use, the pointer indicates the width value of the corresponding steel coil by adjusting the sliding measuring mechanism, the coil feeding trolley is operated to enable the edge of the steel coil to coincide with the laser beam, and the center of the steel coil is aligned with the center line of the unit. According to the invention, a non-contact laser indication and quantitative scale combined mode is adopted, the method has the advantages of high precision, visualization, simple operation and the like, the load of a CPC system can be effectively reduced, the service life of equipment is prolonged, and the yield of products is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of profile processing, and in particular to a steel coil centering auxiliary device for an uncoiler and a centering method. BACKGROUND

[0002] An uncoiler is an important device in a metallurgical continuous rolling production line, which functions to uncoil and stably deliver a steel coil to a subsequent unit. When a coil is loaded, the width center of the coil must be accurately aligned with the center line of the unit, otherwise problems such as strip deviation, accelerated equipment wear, and product shape defects may occur. At present, initial centering mostly relies on the experience and visual inspection of an operator, which is low in accuracy and efficiency. Although a CPC (automatic centering system) can correct deviation during operation, its correction ability is limited, and if the initial centering deviation is too large, the load on the CPC system will be greatly increased, affecting its service life and effect.

[0003] The prior art has a mechanical stop block for centering, which has the risk of scratching the steel coil and is a contact type measurement. There is also a movable laser for indication, but the position of the laser needs to be manually estimated, the accuracy cannot be guaranteed, and there is a lack of quantitative positioning mechanism. Therefore, there is an urgent need for an auxiliary device that is non-contact, high-precision, visual, and can quantitatively guide the centering operation. SUMMARY

[0004] The purpose of the present application is to provide an uncoiler steel coil centering auxiliary device and a centering method, which aims to solve the technical problems of low accuracy, poor efficiency, risk of scratching, and lack of quantitative positioning mechanism in the existing uncoiler coil loading centering.

[0005] In order to solve the above problems, according to one aspect of the present application, an uncoiler steel coil centering auxiliary device is provided, comprising: a support; a guide mechanism fixedly installed on the support; a sliding measurement mechanism sleeved on the guide mechanism and slidable along the axial direction of the guide mechanism; a laser indication mechanism fixedly installed on the sliding measurement mechanism; a scale mechanism fixedly installed on the support, and the scale direction thereof is parallel to the axial direction of the guide mechanism; the sliding measurement mechanism comprises a pointer pointing to the scale surface of the scale mechanism; the axis of the pointer and the axis of the laser beam emitted by the laser indication mechanism are located in the same vertical plane perpendicular to the axis of the guide mechanism, so that the indication value of the pointer on the scale mechanism quantitatively corresponds to the position of the laser beam relative to the center line of the unit.

[0006] In some embodiments, the guiding mechanism comprises a guiding rod, a fixing base and a pressure cover; the guiding rod is fixed on the support through the fixing base and the pressure cover.

[0007] In some embodiments, the sliding measurement mechanism comprises a sliding block, an anti-rotation pressure plate and a handle; the sliding block is sleeved on the guiding rod; the cross section of the guiding rod is in the shape of a multi-semicircle and has an anti-rotation plane which is parallel to the axis of the guiding rod; the anti-rotation pressure plate is fixedly connected with the sliding block and is in contact with the anti-rotation plane of the guiding rod; the handle is fixedly installed on the outer side surface of the sliding block. In some embodiments, the contact surface between the anti-rotation pressure plate and the anti-rotation plane of the guiding rod is a precision matching surface which is subjected to grinding treatment.

[0008] In some embodiments, the sliding block is provided with a dustproof cover at both end surfaces, and the dustproof cover is internally embedded with a felt ring which is sleeved on the guiding rod.

[0009] In some embodiments, a locking unit is screwed on the sliding block, the locking unit can abut against or separate from the guiding rod when rotating, and the locking unit is internally provided with an oil hole; an oil cup is installed on the locking unit.

[0010] In some embodiments, the laser indication mechanism is a cross line laser which is installed on the top of the sliding measurement mechanism through a fixing frame, and the emitted cross line is parallel to the axis of the guiding rod in one line and perpendicular to the axis of the guiding rod in the other line.

[0011] In some embodiments, the scale mechanism is a steel scale which is fixedly installed on the support, the zero point of the scale corresponds to the center line of the unit, the scale value increases from the zero point to both sides, and the length of the scale value marked by the steel scale corresponds to 2 times the length of the standard scale value.

[0012] In some embodiments, the end of the guiding rod is in the shape of a rectangular column.

[0013] The embodiment of the present application also provides a centering method for steel roll centering by using the steel roll centering auxiliary device of the uncoiler, which comprises the following steps: S1: installing the steel roll centering auxiliary device of the uncoiler on the equipment after the uncoiling process and ensuring that the zero point of the scale mechanism is coincident with the center line of the unit; S2: adjusting the emitted light beam of the laser indication mechanism so as to be aligned with the axis of the roll; S3: driving the sliding measurement mechanism to slide along the guiding mechanism according to the width of the steel roll to be coiled, so that the pointer is located at the steel roll width value on the scale mechanism; S4: the coil car is operated to move the steel coil until the edge of the steel coil is aligned with the laser beam emitted on the end face of the steel coil by the laser indicating mechanism; S5: the coil car is exited, and the coil centering operation is completed.

[0014] In some embodiments, when the coil centering auxiliary device of the uncoiler comprises a cross laser, the step of operating the coil car to move the steel coil further comprises: observing the cross line projected on the end face of the steel coil by the cross laser, and if there is an angle between the vertical line of the cross line and the edge of the end face of the steel coil, it indicates that the steel coil is tilted, and the posture of the coil car needs to be adjusted so that the end face of the steel coil is parallel to the vertical line of the cross line before the centering is performed.

[0015] Compared with the prior art, the coil centering auxiliary device of the uncoiler has at least the following beneficial effects: The embodiment of the present application discloses a coil centering auxiliary device of an uncoiler, which uses a non-contact cross laser to indicate, avoiding the risk of scratching the steel coil by mechanical blocks.

[0016] Through the cooperation of the scale mechanism and the pointer, quantitative positioning of the laser position is realized, the centering accuracy is improved, and the problem of insufficient accuracy caused by manual estimation of the position of the existing laser is solved.

[0017] The device has a simple structure, is convenient to install and maintain, and the cross laser only needs to be connected to a power line to work.

[0018] The device can ensure that the center line of the metal coil is accurately aligned with the center line of the uncoiler when the metal coil is fed to the uncoiler, reduces the burden of the CPC automatic centering system, improves the service life of the equipment, reduces the vibration and noise of the unit, and improves the product yield.

[0019] Through actual test and application, the initial centering accuracy of the uncoiling and coiling can be improved from the traditional visual ±10mm or more to within ±2mm. The initial correction load of the CPC system is effectively reduced, and the service life of the CPC hydraulic system is expected to be extended by more than 20%. The scrap rate of the strip steel caused by poor centering is reduced by about 15%.

[0020] Specific experimental data: In a 1550mm cold rolling production line, after the application of the present application: The coil centering time is shortened from the traditional visual 3-5 minutes to 1-2 minutes, and the efficiency is improved by 60%; The initial centering deviation of the steel coil is reduced from ±12mm to ±1.5mm, and the single correction amount of the CPC system is reduced by 87.5%; The strip edge waviness defect rate caused by poor centering is reduced from 0.8% to 0.12%, and the product qualification rate is improved by 0.68 percentage points.

[0021] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the description, as follows. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0023] Figure 1 The structure schematic diagram of the coil centering auxiliary device for the uncoiler steel coil provided by the embodiment of the present application is shown in the figure. Figure 2 The structure schematic diagram of the coil centering auxiliary device for the uncoiler steel coil provided by the embodiment of the present application is shown in the figure. Figure 3 The structure schematic diagram of the coil centering auxiliary device for the uncoiler steel coil provided by the embodiment of the present application is shown in the figure. Figure 2 The sectional view along A-A. Figure 4 The structure schematic diagram of the coil centering auxiliary device for the uncoiler steel coil provided by the embodiment of the present application is shown in the figure. Figure 5 The structure schematic diagram of the coil centering auxiliary device for the uncoiler steel coil provided by the embodiment of the present application is shown in the figure. Figure 6 The flow chart of the coil centering auxiliary method for the uncoiler provided by the embodiment of the present application is shown in the figure.

[0024] Explanation of reference signs: 1, support; 2, guide rod; 201, anti-rotation plane; 3, anti-rotation pressing plate; 4, cross line laser; 5, fixed frame; 6, sliding block; 7, dust cover; 8, fixed seat; 9, pressing cover; 10, pointer; 11, handle; 12, locking unit; 13, steel ruler; 14, felt ring; 15, oil cup; 16, winding drum; 17, starting pinch roll; 18, steel coil. DETAILED DESCRIPTION

[0025] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined invention purpose, the specific implementation, structure, features and effects according to the present application are described in detail as follows by combining with the drawings and preferred embodiments. In the following description, different "an embodiment" or "embodiments" do not necessarily refer to the same embodiment. In addition, the specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0026] In the description of the present application, it is necessary to make clear that the terms "first", "second" and the like in the description of the present application and claims and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence; the terms "vertical", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not mean that the devices or elements referred to must have a particular orientation or position, and therefore cannot be understood as a limitation on the present application.

[0027] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] As shown in Figures 1-5 The present application embodiment provides a kind of uncoiler coil centering auxiliary device, including: support 1; guide mechanism, it is fixedly installed on the support 1; sliding measurement mechanism, it is sleeved on the guide mechanism, and can slide along the axial direction of the guide mechanism; laser indication mechanism, it is fixedly installed on the sliding measurement mechanism; scale mechanism, it is fixedly installed on the support 1, and its scale direction is parallel with the axial direction of the guide mechanism; The sliding measurement mechanism includes pointer 10, and the pointer 10 is directed to the scale surface of the scale mechanism; The axis of the pointer 10 and the axis of the laser beam emitted by the laser indication mechanism are in the same vertical plane perpendicular to the axis of the guide mechanism, so that the indication value of the pointer 10 on the scale mechanism quantitatively corresponds to the position of the laser beam relative to the center line of the unit.

[0029] The coil centering auxiliary device of the present embodiment comprises a support 1, a guide mechanism, a sliding measurement mechanism, a laser indication mechanism and a scale mechanism. The guide mechanism is fixedly installed on the support 1 to provide a stable sliding track for the sliding measurement mechanism; the sliding measurement mechanism is sleeved on the guide mechanism and can freely slide along the axial direction of the guide mechanism, the top of the sliding measurement mechanism is provided with the laser indication mechanism, and the bottom is provided with a pointer 10; the scale mechanism is fixed on the support 1, the scale direction is parallel to the axial direction of the guide mechanism, the pointer 10 points to the scale surface of the scale mechanism, and the axis of the pointer 10 and the axis of the laser beam emitted by the laser indication mechanism are in the same vertical plane perpendicular to the axial direction of the guide mechanism, so that the positions of the two are accurately corresponding.

[0030] In actual operation, first, the device needs to be installed on the equipment after the uncoiling process of the uncoiler, for example, the initial pinch roll 17. During the installation process, it is necessary to ensure that the zero point of the scale mechanism is completely coincident with the center line of the unit, which is the basis for achieving accurate centering. After installation is completed, the laser indication mechanism is adjusted so that the light beam emitted by the laser indication mechanism is accurately aligned with the axis of the coil drum 16, ensuring that the reference line of the laser indication is consistent with the movement axis of the coil 18.

[0031] When the incoming coil 18 needs to be wound, the operator adjusts the sliding measurement mechanism along the guide mechanism according to the width of the coil 18, so that the indication value of the pointer 10 on the scale mechanism corresponds to the width value of the coil 18. Since the pointer 10 and the laser beam axis are in the same vertical plane, the light beam emitted by the laser indication mechanism at this time corresponds to the outer edge of the coil 18 when the width center of the coil 18 is coincident with the center line of the unit. Subsequently, the winding trolley drives the coil 18 to move along the axis direction of the coil drum 16, and the relative position of the edge of the coil 18 and the laser beam is observed. When the edge of the coil 18 is completely coincident with the laser beam, the winding trolley is stopped. At this time, the width center of the coil 18 is accurately aligned with the center line of the unit, and finally the winding trolley is withdrawn, completing the entire winding centering operation.

[0032] The device realizes the visualization and quantification of the coil 18 winding centering through the combination of mechanical structure and laser indication. Compared with the traditional centering method relying on manual visual inspection, the accuracy is significantly improved, effectively avoiding problems such as strip deviation and equipment wear caused by centering deviation; compared with the contact centering of mechanical blocks, the non-contact laser indication does not scratch the surface of the coil 18, protecting the material quality; at the same time, the quantitative scale mechanism reduces the dependence on the experience of the operator, making the operation more simple and efficient, and can cooperate with the CPC automatic centering system to reduce the operating load, prolong the service life of the equipment and improve the product yield.

[0033] Through actual test application, the initial centering accuracy of uncoiling and coiling can be improved from the traditional visual +10mm to within +2mm, effectively reducing the initial correction load of the CPC system, and it is expected to extend the service life of the CPC hydraulic system by more than 20%. The scrap rate of strip steel deviation caused by poor centering is reduced by about 15%.

[0034] In some embodiments, the guide mechanism comprises a guide rod 2, a fixed seat 8 and a gland 9; the guide rod 2 is fixed on the support 1 through the fixed seat 8 and the gland 9.

[0035] The guide mechanism of the embodiment is composed of a guide rod 2, a fixed seat 8 and a gland 9, and the guide rod 2 is tightly fixed on the support 1 through the fixed seat 8 and the gland 9. The fixed seat 8 provides bottom support for the guide rod 2, and the connection with the support 1 adopts bolt fastening to ensure stable installation; the gland 9 is buckled above the guide rod 2 and connected with the fixed seat 8 through a bolt to clasp the guide rod 2 tightly, avoiding axial or radial displacement of the guide rod 2 during operation.

[0036] During operation, the guide rod 2 serves as a sliding track of the sliding measurement mechanism, and its stability directly affects the centering accuracy. The cooperation of the fixed seat 8 and the gland 9 can effectively offset the lateral force generated when the sliding measurement mechanism slides, preventing the guide rod 2 from bending or shaking. The middle part of the guide rod 2 is designed as a multi-semicircular shape in radial section, which not only ensures good cooperation with the sliding measurement mechanism, but also provides a fitting surface for the anti-rotation pressure plate 3, ensuring that the sliding measurement mechanism can only slide in the axial direction and cannot rotate.

[0037] When the sliding measurement mechanism slides along the guide rod 2, the rigid support of the guide rod 2 makes the sliding process smooth and free of jamming, the indication of the pointer 10 on the scale mechanism is always accurate, and the direction of the light beam emitted by the laser indication mechanism is stable. Even after long-term high-frequency use, due to the firm fixation of the fixed seat 8 and the gland 9, the positional accuracy of the guide rod 2 can still be maintained, and the centering error caused by looseness can be avoided.

[0038] The design of this guide mechanism provides a reliable structural foundation for the entire device, ensuring the movement accuracy of the sliding measurement mechanism and thus the accuracy and stability of the centering of the steel coil 18. At the same time, the modular assembly method facilitates installation and maintenance, and when the guide rod 2 is worn or needs to be replaced, it can be quickly completed by disassembling the gland 9, reducing the equipment maintenance cost.

[0039] In some embodiments, the sliding measurement mechanism comprises a sliding block 6, an anti-rotation pressing plate 3 and a handle 11; the sliding block 6 is sleeved on the guide rod 2; the guide rod 2 has a cross section in the shape of a multi-semicircle and has an anti-rotation plane 201 parallel to the axis of the guide rod 2; the anti-rotation pressing plate 3 is fixedly connected with the sliding block 6 and is in close contact with the anti-rotation plane 201 of the guide rod 2; and the handle 11 is fixedly installed on the outer side surface of the sliding block 6. In the embodiment, the close contact surface between the anti-rotation pressing plate 3 and the anti-rotation plane 201 of the guide rod 2 is a precisely matched surface after grinding.

[0040] The sliding measurement mechanism of the embodiment comprises a sliding block 6, an anti-rotation pressing plate 3 and a handle 11. The sliding block 6 is sleeved on the guide rod 2 and is internally matched with the multi-semicircular cross section of the guide rod 2 to ensure the close contact degree during sliding. The guide rod 2 is provided with an anti-rotation plane 201 parallel to the axis, the anti-rotation pressing plate 3 is fixedly connected with the sliding block 6 through bolts and is in close contact with the anti-rotation plane 201 to form an anti-rotation structure. The handle 11 is fixed on the outer side surface of the sliding block 6 to facilitate manual driving of the sliding block 6 by the operator.

[0041] During operation, the operator holds the handle 11 and applies an axial force to push the sliding block 6 to slide along the guide rod 2. Since the anti-rotation pressing plate 3 is in close contact with the anti-rotation plane 201 of the guide rod 2, the sliding block 6 cannot rotate around the guide rod 2 during sliding, which ensures that the pointer 10 installed on the sliding block 6 is always vertically pointed to the scale surface of the scale mechanism and the direction of the laser beam emitted by the laser indication mechanism also remains stable and will not deviate due to rotation.

[0042] The matching gap between the sliding block 6 and the guide rod 2 is precisely designed to ensure the smoothness of sliding and prevent shaking due to excessive gap. When the sliding block 6 moves to the target position, it can be fixed by the locking unit 12 to prevent displacement due to vibration in subsequent operations. The length and holding angle of the handle 11 are designed according to ergonomics, so the operator can easily exert force and will not easily feel tired even after a long time of operation.

[0043] The anti-rotation pressing plate 3 is the key of the sliding measurement mechanism, which is in close contact with the anti-rotation plane 201 of the guide rod 2 to eliminate the rotational freedom of the sliding block 6 from the mechanical structure, which is crucial for ensuring the indication accuracy of the pointer 10 and the stability of the direction of the laser beam. During the centering of the steel coil 18, the accurate positioning of the sliding block 6 directly determines the accuracy of the laser indication, and the stable operation of the sliding measurement mechanism provides a guarantee for the efficient performance of the entire centering operation.

[0044] The fitting surface between the anti-rotation pressing plate 3 and the anti-rotation plane 201 of the guide rod 2 is a precision fitting surface after grinding treatment. The "grinding treatment" of the fitting surface of the anti-rotation pressing plate 3 significantly improves the anti-rotation reliability and long-term stability of the sliding measurement mechanism during frequent sliding, ensuring that the centering accuracy (±2 mm) can be continuously maintained even in harsh industrial environments.

[0045] In some embodiments, a dust cover 7 is mounted on the two end faces of the sliding block 6, and a felt ring 14 is embedded in the dust cover 7.

[0046] In this embodiment, the dust cover 7 is made of metal and is fixed on the end of the sliding block 6 by bolts, and a felt ring 14 is embedded in the inside of the dust cover 7. The inner diameter of the felt ring 14 is matched with the outer diameter of the guide rod 2 to form a tight fit.

[0047] In the device operating environment, a large amount of metal debris, dust and other impurities will be generated when the uncoiler is working. If these impurities enter the sliding gap between the sliding block 6 and the guide rod 2, the friction between them will increase, and even cause jamming, affecting the sliding accuracy and service life. As the first line of defense, the dust cover 7 can block most of the larger particles from entering the inside of the sliding block 6. The felt ring 14 has good elasticity and adsorption, and it is in close contact with the surface of the guide rod 2, which can further adsorb fine dust and oil stains, while not affecting the sliding of the sliding block 6.

[0048] When the sliding block 6 slides along the guide rod 2, the felt ring 14 will move synchronously with the sliding block 6, always keeping the surface of the guide rod 2 clean and avoiding the accumulation of impurities on the sliding surface. The felt ring 14 is designed to be detachable, so when it is worn out or adsorbs too much impurities after a period of use, it can be easily replaced to ensure the continuous and effective dustproof effect.

[0049] The combination of the dust cover 7 and the felt ring 14 significantly improves the anti-pollution ability of the sliding block 6, reduces the probability of failure caused by impurities, and prolongs the maintenance cycle of the sliding block 6 and the guide rod 2. Even in harsh industrial environments, the long-term stable operation of the sliding measurement mechanism can be ensured, and the accuracy of the centering operation of the steel coil 18 is not affected by environmental factors.

[0050] In some embodiments, a locking unit 12 is rotatably connected to the sliding block 6, and the locking unit 12 can abut or separate from the guide rod 2 when it rotates. An oil hole is formed in the locking unit 12, and an oil cup 15 is mounted on the locking unit 12.

[0051] The locking unit 12 is screwed on the front surface of the sliding block 6, and the screw end of the locking unit 12 can be in surface contact with the guide rod 2. By rotating the locking unit 12, the pressure between the locking unit 12 and the guide rod 2 can be changed, so as to adjust the sliding resistance between the sliding block 6 and the guide rod 2. An oil hole is axially formed in the locking unit 12, and an oil cup 15 is mounted on the top of the locking unit 12. The oil cup 15 stores lubricating oil, and the lubricating oil can be introduced into the sliding surface between the sliding block 6 and the guide rod 2 through the oil hole.

[0052] When the sliding block 6 needs to be moved, the locking unit 12 is reversely rotated to separate the screw end of the locking unit 12 from the guide rod 2, so that the friction between the sliding block 6 and the guide rod 2 is reduced. At this time, the operator can easily push the sliding block 6 along the guide rod 2 by the handle 11. When the sliding block 6 reaches the target position, the locking unit 12 is forwardly rotated to tightly press the surface of the guide rod 2, so as to firmly fix the sliding block 6 by the friction force, and prevent the sliding block 6 from moving in the subsequent operation.

[0053] During long-term use, the sliding surface of the sliding block 6 and the guide rod 2 will be worn due to friction. The oil hole is regularly filled with lubricating oil through the oil cup 15. The lubricating oil can flow into the sliding surface through the oil hole to form an oil film, reduce the friction coefficient, and reduce the wear speed. The oil cup 15 is made of transparent material, so that the remaining amount of the lubricating oil can be observed, and the lubricating oil can be supplemented in time.

[0054] The design of the locking unit 12 realizes the quick fixing and releasing of the position of the sliding block 6, and the operation is convenient and reliable. The cooperation of the oil hole and the oil cup 15 provides continuous lubrication protection for the sliding surface, ensures the smooth sliding of the sliding block 6 for a long time, and improves the practicability and durability of the sliding measurement mechanism, which lays a foundation for the stable operation of the device.

[0055] In some embodiments, the laser indicating mechanism is a cross line laser 4, which is installed on the top of the sliding measurement mechanism through a fixing frame 5. One line of the cross line emitted by the cross line laser 4 is parallel to the axis of the guide rod 2, and the other line is perpendicular to the axis of the guide rod 2.

[0056] The laser indicating mechanism of the embodiment adopts the cross line laser 4, which is installed on the top of the sliding measurement mechanism through the fixing frame 5. The fixing frame 5 is a metal support structure, which is fixed to the top of the sliding block 6 by bolts. The cross line laser 4 is embedded in the fixing frame, and the direction of the laser beam emitted by the cross line laser 4 can be finely adjusted by adjusting the angle of the fixing frame.

[0057] In operation, the cross line laser 4 emits a cross-shaped laser beam after being connected to the power supply. One of the laser lines extends along the axis direction of the winding drum 16, and the other is perpendicular to the direction, forming a clear cross mark. When the sliding block 6 moves to the target position, the cross laser beam is projected on the end surface of the steel coil 18, and the operator can judge the centering state by observing the relative position of the edge of the steel coil 18 and the laser beam.

[0058] The cross line laser 4 has the advantages of high indication accuracy, good straightness of the laser beam, clear outline even at a long distance, and accurate identification of the operator whether the edge of the steel coil 18 coincides with the laser beam. Compared with a single line laser, the cross line laser can provide reference in two directions at the same time, further reducing visual error, especially when the steel coil 18 is slightly tilted, the alignment of the cross line can be adjusted in time.

[0059] The rigid design of the fixed frame 5 ensures that the cross line laser 4 does not shake during the movement of the sliding block 6, and the direction of the laser beam is stable. At the same time, the angle adjustability of the fixed frame facilitates the calibration of the direction of the laser beam at the initial installation of the device, ensuring that it is accurately aligned with the axis of the reel 16. The cross line laser 4 has low power consumption and can work with only one power supply line, and is easy to install and maintain, providing an intuitive and accurate visual reference for the centering of the steel coil 18.

[0060] One line of the cross line emitted by the cross line laser 4 is parallel to the axis of the guide rod 2, and the other line is perpendicular to the axis of the guide rod 2, so that the cross line laser 4 can not only center, but also assist in observing whether the end face of the steel coil 18 is tilted, improving the practicability.

[0061] In some embodiments, the scale mechanism is a steel ruler 13, which is fixedly installed on the support 1, and the zero point of the scale of the steel ruler 13 corresponds to the center line of the unit, and the scale value increases from zero to both sides. The length of the scale value marked by the steel ruler 13 corresponds to 2 times the length of the standard scale value, that is, 1 centimeter of the steel ruler 13 is equal to 2 centimeters of the standard length, and the reading can be directly corresponding to the actual width value of the steel coil.

[0062] The scale mechanism of the present embodiment adopts a steel ruler 13, which is fixedly installed on the support 1 by bolts and arranged along the axis of the guide rod 2. The scale of the steel ruler 13 is designed with the middle position as the zero point, symmetrically increasing to both sides, and the scale value is accurate to millimeters, and the maximum value is greater than the maximum width of the steel coil 18, ensuring that it can cover all common specifications of the steel coil 18.

[0063] During operation, the zero scale line of the steel ruler 13 is completely coincident with the center line of the unit, which is the reference point of the entire centering operation. When the operator positions according to the width of the incoming steel coil 18, he only needs to push the sliding block 6 to make the pointer 10 point to the corresponding scale value. For example, if the width of the steel coil 18 is 1000 mm, the pointer 10 needs to point to the 1000 mm scale, at this time the laser beam emitted by the cross line laser 4 corresponds to the outer edge when the width center of the steel coil 18 coincides with the center line of the unit.

[0064] The scale of the steel plate ruler 13 is clear and wear-resistant, and is made by etching process, which can maintain good readability even after long-term use or being contaminated by oil. The installation position corresponds to the pointer 10, and the operator can clearly observe the indicated value of the pointer 10 without additional bending or adjusting the viewing angle.

[0065] The scale design realizes quantitative correspondence between the width of the steel coil 18 and the laser indication position, and gets rid of the disadvantages of traditional centering operation relying on experience estimation, so that the operator can quickly and accurately complete the positioning of the sliding block 6, and the centering efficiency and accuracy are greatly improved. At the same time, the symmetrical scale distribution facilitates the operator to flexibly select the left or right scale according to the placement direction of the steel coil 18, and enhances the universality of the device.

[0066] In some embodiments, the end of the guide rod 2 is a rectangular column structure.

[0067] The end of the guide rod 2 of the embodiment is designed as a rectangular column structure, the edge length of the rectangular section is slightly larger than the diameter of the main body of the guide rod 2, and the surface is milled to ensure the flatness of the anti-rotation plane and facilitate clamping with a wrench or other tools.

[0068] During the installation and debugging of the device, it is necessary to adjust the direction of the light beam emitted by the cross line laser 4 to accurately align the axis of the reel 16. Since the cross line laser 4 is connected to the guide rod 2 through the fixing frame 5, the rotation of the guide rod 2 will drive the laser to rotate synchronously, so the adjustment of the direction of the light beam can be realized by rotating the end of the guide rod 2. The rectangular column structure facilitates clamping with a wrench, and the operator can easily apply torque to rotate the guide rod 2 after clamping the wrench into the rectangular end, and it is not easy to slip, and the rotation angle can be accurately controlled to ensure that the laser beam is accurately aligned with the target.

[0069] Compared with the circular end, the rectangular column structure provides a clear force surface, making the adjustment process more stable and efficient. After long-term operation of the device, if the direction of the laser beam is slightly shifted due to vibration or other reasons, the rectangular end can also be used for convenient secondary calibration without the need to disassemble other parts, greatly simplifying the maintenance process.

[0070] The rectangular column design of the end of the guide rod 2, although simple in structure, plays a key role in adjusting the direction of the laser beam, ensuring the accuracy of the laser indication, and providing an important guarantee for the accuracy of the centering operation of the steel coil 18.

[0071] The fitting surface roughness of the anti-rotation plate 3 and the anti-rotation plane 201 of the guide rod 2 is ≤Ra0.8μm, the fitting clearance is controlled within the range of 0.01-0.03mm, the flatness error of the anti-rotation plane is ≤0.005mm / m through grinding process, and the rotation deviation of the sliding block 6 is ≤0.1° when sliding along the guide rod 2 in the axial direction.

[0072] The dust cover 7 is formed by stamping Q235 steel plate, and the thickness is 3-5 mm; the felt ring 14 is industrial-grade wool felt, the density is 0.35-0.4 g / cm3, the cross section is U-shaped, and the interference fit amount with the surface of the guide rod 2 is 0.5-1 mm, so that the metal chips and dust with a particle size of greater than or equal to 0.1 mm can be effectively blocked from invading.

[0073] The cross laser 4 has an output power of 5-10 mW, a wavelength of 635 nm, a cross line width of less than or equal to 0.3 mm at a distance of 1 m, a divergence angle of less than or equal to 0.5 mrad, a working temperature of-10℃-50℃, and a continuous working life of greater than or equal to 10000 hours, so that stable operation in a dusty and vibrating environment of a metallurgical workshop is ensured.

[0074] As shown in Figure 6 The present application also provides a centering method for steel coil centering using the steel coil centering auxiliary device, which comprises the following steps: S1: installing the steel coil centering auxiliary device on the equipment after the uncoiling process, and ensuring that the zero scale of the scale mechanism coincides with the center line of the unit; S2: adjusting the emission beam of the laser indicating mechanism to be aligned with the axis of the winding drum 16; S3: driving the sliding measurement mechanism to slide along the guide mechanism, so that the pointer 10 is located at the steel coil width value on the scale mechanism; S4: operating the coil-up trolley to move the steel coil 18 until the edge of the steel coil 18 coincides with the laser beam emitted by the laser indicating mechanism on the end surface of the steel coil 18; S5: exiting the coil-up trolley, and completing the coil-up centering operation.

[0075] In the present embodiment, the process of using the steel coil centering auxiliary device for steel coil centering is divided into five steps. The first step is to install the device, which is fixed on the equipment after the uncoiling process of the uncoiler, such as the starting pinch roll 17. During installation, the spirit level and tape measure are used for calibration to ensure that the zero scale of the steel plate ruler 13 completely coincides with the center line of the unit, which is the reference for subsequent centering operations. If there is deviation in this step, it will directly affect the final centering accuracy.

[0076] The second step is to adjust the direction of the laser beam. The power supply of the cross laser 4 is turned on to emit a laser beam. The operator stands on the axis extension line of the winding drum 16, rotates the rectangular end of the guide rod 2, adjusts the direction of the laser beam, and until the laser line completely coincides with the axis of the winding drum 16. At this time, the reference direction of the laser beam has been determined, which provides an accurate reference for subsequent indication of the edge of the steel coil 18.

[0077] The third step is to position the slider 6. The operator holds the handle 11 and pushes the slider 6 along the guide rod 2, while observing the value indicated by the pointer 10 on the steel ruler 13. When the pointer 10 accurately points to the width value of the steel coil 18, the locking unit 12 is tightened to fix the slider 6. At this time, the laser beam emitted by the cross laser 4 has reached the outer edge position corresponding to the center of the width of the steel coil 18 and the center line of the machine set.

[0078] The fourth step is to move the steel coil 18. The operator drives the coil-up trolley to slowly move the steel coil 18 along the axis of the reel 16, while observing the relative position of the edge of the steel coil 18 and the laser beam. When the edge of the steel coil 18 is completely coincident with the laser beam, the coil-up trolley is immediately stopped. At this time, the center of the width of the steel coil 18 has been accurately aligned with the center line of the machine set.

[0079] The fifth step is to complete the coil-up. After confirming that the position of the steel coil 18 is correct, the coil-up trolley is controlled to exit the working area, and the steel coil 18 is smoothly placed on the uncoiler. The centering operation is completed.

[0080] The entire use process is closely linked, and each step is designed around the goal of "accurate alignment". Through the combination of mechanical positioning and laser indication, the standardization of the steel coil 18 coil-up centering operation is realized, which not only improves the centering accuracy, but also reduces the operation difficulty, and is suitable for operators with different experience levels.

[0081] This centering method has clear steps and standardized operation. Through the cooperation of each step, the coil-up centering operation of the steel coil 18 can be quickly and accurately completed. Compared with the traditional visual centering or mechanical block centering, this method has higher precision and better efficiency, and avoids the damage to the steel coil 18 caused by contact measurement, while reducing the burden of the CPC automatic centering system, which is conducive to improving the equipment life and product quality.

[0082] If the width of the steel coil 18 to be coiled is 1200mm, the sliding measurement mechanism is driven to make the pointer 10 point to the 1200mm scale line of the steel ruler 13. At this time, the vertical line of the cross laser 4 is projected on the end face of the steel coil 18, and the coil-up trolley is operated to make the edge of the steel coil coincide with the vertical line. At this time, the deviation between the center of the steel coil and the center line of the machine set is ≤2mm.

[0083] In some embodiments, the step of moving the steel coil 18 by operating the coil-up trolley further comprises: observing the cross line projected by the cross laser 4 on the end face of the steel coil 18. If there is an angle between the vertical line of the cross line and the edge of the end face of the steel coil 18, it means that the steel coil 18 is inclined, and the posture of the coil-up trolley needs to be adjusted to make the end face of the steel coil parallel to the vertical line of the cross line before centering.

[0084] In this embodiment, when the uncoiler coil centering auxiliary device includes a cross laser 4, the centering operation needs to be completed in combination with the cross line projected by the cross laser 4 during the operation of moving the coil 18 by the coil lifting trolley, and the adjustment of the inclined state of the coil 18 is the key link to ensure the centering accuracy.

[0085] The cross laser 4 is installed on the top of the sliding block 6 through the fixing frame 5, and the cross line emitted by the cross laser 4 includes a horizontal line and a vertical line, which are perpendicular to each other to form a reference mark. During the installation of the device, the direction of the laser beam has been adjusted through the rectangular column structure at the end of the guide rod 2 to accurately align the horizontal line of the cross line with the axis of the reel 16, and the vertical line is perpendicular to the axis to form the reference line for judging whether the end face of the coil 18 is flat. After the sliding block 6 is adjusted to the position corresponding to the width value of the coil 18 through the handle 11, the light beam of the cross laser 4 has been accurately positioned, and at this time, the coil lifting trolley is operated to move the coil 18 along the axis direction of the reel 16, and the cross line is clearly projected on the end face of the coil 18.

[0086] The operator needs to closely observe the relative position of the projected cross line and the edge of the end face of the coil 18: if the vertical line of the cross line is parallel to the edge of the end face of the coil 18, it means that the axis of the coil 18 is consistent with the axis of the reel 16, and there is no inclination; if there is an included angle between the two, it means that the coil 18 is inclined, that is, the axis of the coil 18 is not parallel to the axis of the reel 16. This inclination will cause that even if the edge of the subsequent coil 18 coincides with the laser beam, the width center cannot be truly aligned with the center line of the machine set, thereby causing problems such as strip deviation, uneven tension, etc. in the uncoiling process, aggravating equipment wear and affecting product quality.

[0087] After the inclination is found, the posture of the coil lifting trolley needs to be adjusted immediately. The coil lifting trolley is usually equipped with a fine adjustment mechanism, which can change the placement state of the coil 18 by adjusting the lifting height or the rotation angle of the two sides of the trolley. During the adjustment process, the operator needs to continuously observe the change of the included angle between the vertical line of the cross line and the edge of the end face of the coil 18, and gradually fine-tune until the two are completely parallel to ensure that the axis of the coil 18 coincides with the axis of the reel 16. After the end face of the coil 18 is flat, the coil lifting trolley is further moved to slowly approach the edge of the coil 18 to the laser beam emitted by the cross laser 4 and finally coincide with the laser beam. At this time, the width center of the coil 18 is not only aligned with the center line of the machine set, but also the axis of the coil 18 is consistent with the axis of the reel 16, which fully meets the requirements of the coil lifting centering.

[0088] The integration of this adjustment step further improves the centering process and solves the problem of ignoring the inclination of the steel coil 18 in the traditional centering process. Through the visual reference provided by the cross laser 4, the operator can intuitively judge the placement state of the steel coil 18, eliminate the inclination error with the help of the fine adjustment function of the coil lifting trolley, and ensure the full-range centering of the steel coil 18 in space. This method not only improves the centering accuracy, but also reduces the production risk caused by the inclination of the steel coil 18. When used with the CPC automatic centering system, it can minimize the subsequent deviation pressure, prolong the service life of the equipment, and improve the flatness and qualification rate of the product. At the same time, this operation does not require complex calculations or additional tools, and can be completed by observation and simple fine adjustment, reducing the requirement for the skill level of the operator, making the centering process more efficient and reliable.

[0089] Device maintenance and calibration: 1. Check the dust cover 7 and felt ring 14 every week. If the felt ring 14 is worn or has too many impurities adsorbed, it should be replaced in time; 2. Add 32# mechanical lubricating oil through the oil cup 15 every month, with an addition amount of 5-10ml each time, to ensure smooth sliding of the sliding block 6; 3. Calibrate the cross laser 4 every quarter: through the reference mark at the axis of the winding drum 16, adjust the fixed frame 5 so that the horizontal line of the cross laser is aligned with the reference mark, with a deviation of within 0.5mm / m.

[0090] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described device, apparatus and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

[0091] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An auxiliary device for centering steel coils on an uncoiler, characterized in that, It comprises: a bracket (1); a guide mechanism fixedly installed on the bracket (1); a sliding measurement mechanism sleeved on the guide mechanism and capable of sliding along the axial direction of the guide mechanism; a laser indication mechanism fixedly installed on the sliding measurement mechanism; a scale mechanism fixedly installed on the bracket (1) and having a scale direction parallel to the axial direction of the guide mechanism; the sliding measurement mechanism comprises a pointer (10) pointing to the scale surface of the scale mechanism; the axis of the pointer (10) and the axis of the laser beam emitted by the laser indication mechanism are located in the same vertical plane perpendicular to the axis of the guide mechanism, so that the indication value of the pointer (10) on the scale mechanism quantitatively corresponds to the position of the laser beam relative to the center line of the unit.

2. The coil aligning assist device for an uncoiler according to claim 1, characterized by The guide mechanism comprises a guide rod (2), a fixed seat (8) and a gland (9); the guide rod (2) is fixed on the bracket (1) through the fixed seat (8) and the gland (9).

3. The coil aligning aid for an uncoiler as claimed in claim 2, characterized in that The sliding measurement mechanism comprises a sliding block (6), an anti-rotation pressing plate (3) and a handle (11); the sliding block (6) is sleeved on the guide rod (2); the cross section of the guide rod (2) is in the shape of a multi-semicircle and has an anti-rotation plane (201) parallel to the axis of the guide rod (2); the anti-rotation pressing plate (3) is fixedly connected with the sliding block (6) and is in contact with the anti-rotation plane (201) of the guide rod (2); the handle (11) is fixedly installed on the outer side surface of the sliding block (6); wherein, the contact surface between the anti-rotation pressing plate (3) and the anti-rotation plane (201) of the guide rod (2) is a precision matching surface subjected to grinding treatment.

4. The coil aligning aid for an uncoiler as claimed in claim 3, characterized in that The sliding block (6) is provided with a dust cover (7) on both end surfaces, and the dust cover (7) is embedded with a felt ring (14) sleeved on the guide rod (2).

5. The coil aligning assist device for an uncoiler according to claim 3, characterized by A locking unit (12) is rotatably connected to the sliding block (6); when the locking unit (12) rotates, it can abut against or separate from the guide rod (2); the locking unit (12) is internally provided with an oil hole; and an oil cup (15) is installed on the locking unit (12).

6. The coil aligning assist device for an uncoiler according to claim 2, characterized by The laser indication mechanism is a cross line laser (4) installed on the top of the sliding measurement mechanism through a fixing frame (5); one line of the cross line emitted by the cross line laser (4) is parallel to the axis of the guide rod (2), and the other line is perpendicular to the axis of the guide rod (2).

7. The coil aligning assist device for an uncoiler according to claim 1, characterized by The scale mechanism is a steel scale (13) fixedly installed on the bracket (1); the scale zero point of the steel scale (13) corresponds to the center line of the unit; the scale value increases from the zero point to both sides; and the length of the scale value marked by the steel scale (13) corresponds to 2 times the length of the standard scale value.

8. The coil aligning assist device for an uncoiler according to claim 2, characterized by The end of the guide rod (2) is in the shape of a rectangular column.

9. A method of centering a steel coil using the coil centering aid of any one of claims 1 to 8, characterized in that, The method comprises the following steps: installing the uncoiler steel coil centering auxiliary device on the equipment after the uncoiling process and ensuring that the scale zero point of the scale mechanism coincides with the center line of the unit; adjusting the emitted light beam of the laser indication mechanism to align with the axis of the roll (16); According to the width of the steel coil (18) to be coiled, the sliding measuring mechanism is driven to slide along the guide mechanism, so that the pointer (10) is located at the steel coil width value on the scale mechanism; The coiling trolley is operated to move the steel coil (18) until the edge of the steel coil (18) coincides with the laser beam emitted on the end face of the steel coil (18) by the laser indicating mechanism; The coiling trolley is withdrawn, and the coiling centering operation is completed.

10. The method of centering of claim 9, wherein, When the uncoiler steel coil centering auxiliary device comprises a cross laser (4), the step of operating the coiling trolley to move the steel coil (18) further comprises: observing the cross line projected on the end face of the steel coil (18) by the cross laser (4), and if there is an included angle between the vertical line of the cross line and the edge of the end face of the steel coil (18), it indicates that the steel coil (18) is inclined, and the posture of the coiling trolley needs to be adjusted so that the end face of the steel coil (18) is parallel to the vertical line of the cross line before centering.

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