Roller roughening treatment device and stainless steel texture-free dot surface processing method

Abstract

The present invention provides a roller texture processing device and a stainless steel texture-free dotted surface processing method. The roller texture processing device includes a frame, a grinding and polishing mechanism, and a laser; wherein, a first fixed seat and a second fixed seat are respectively provided at both ends of the frame, a first driving motor is provided on the first fixed seat, and a pushing mechanism is provided on the second fixed seat; the grinding and polishing mechanism is slidably connected to the frame, and includes a grinding component and a polishing component; the grinding and polishing mechanism has a grinding state in which the grinding component fits and contacts with the roller body of the roller, and also has a polishing state in which the polishing component fits and contacts with the roller body; the laser is slidably connected to the frame, and is used to perform laser texture on the roller body. The roller texture processing device and the stainless steel texture-free dotted surface processing method provided by the present invention can ensure low roughness and high glossiness of the product surface while removing the original texture on the surface of the stainless steel strip.

Description

Technical Field

[0001] The invention belongs to the technical field of stainless steel processing, and in particular relates to a roller texturing treatment device and a stainless steel texture-free dotted surface processing method. Background Art

[0002] Stainless steel strip processing involves the process of thinning the blank plate through a rolling mill to reduce its internal grain size. The roller is the main working component that causes continuous plastic deformation of the stainless steel plate. It is mainly composed of a roller body, two roller necks and two shaft heads. Among them, the roller body is the middle part of the roller that actually participates in rolling the stainless steel strip. The roller neck is installed in the bearing and transmits the rolling force to the frame through the bearing seat and the pressure device. The transmission end shaft head is connected to the gear seat, so that the roller obtains the rotational torque of the motor.

[0003] After stainless steel products are rolled, there will usually be original textures on the surface. However, some customers require that the product surface be texture-free. This requires that at least part of the rollers of the rolling mill be roughened so that the original texture on the surface of the stainless steel plate can be covered by copying and form a dot-like morphology during the rolling of the stainless steel strip by these roughened rollers. However, the dot-like morphology formed on the surface of the stainless steel strip by the roughened rollers will increase the roughness of the product and cause the glossiness to decrease. For customers who require a higher surface glossiness of texture-free stainless steel products, this does not meet the requirements. Therefore, there is an urgent need to develop processes and related supporting equipment that can improve the surface glossiness of texture-free stainless steel products. Summary of the invention

[0004] The embodiments of the present invention provide a roller texturing device and a method for processing a texture-free dotted surface of stainless steel, aiming to solve the problem in the current stainless steel production process that the original texture of the product surface is removed by laser texturing of the roller, resulting in increased roughness and decreased glossiness.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: in the first aspect, a roller texturing processing device is provided, comprising a frame, a grinding and polishing mechanism, and a laser; wherein, a first fixed seat and a second fixed seat are respectively provided at both ends of the frame, a first driving motor is provided on the first fixed seat, and a pushing mechanism is provided on the second fixed seat, and the output shaft of the first driving motor and the pushing mechanism are respectively used to coaxially connect the two end shaft heads of the roller; the grinding and polishing mechanism is slidably connected to the frame along the axial direction of the output shaft of the first driving motor, and comprises a grinding assembly and a polishing assembly; the grinding and polishing mechanism has a grinding state in which the grinding assembly fits and contacts the roller body of the roller, and also has a polishing state in which the polishing assembly fits and contacts the roller body; the laser is slidably connected to the frame along the axial direction of the output shaft of the first driving motor, and the laser emitting end of the laser is horizontally aligned with the roller body, so as to perform laser texturing on the roller body.

[0006] In combination with the first aspect, in a possible implementation, a first slide rail is provided on the side of the first fixed seat and the second fixed seat on the frame, and the first slide rail extends along the axial direction of the output shaft of the first drive motor; the grinding and polishing mechanism and the laser are both slidably connected to the first slide rail, and two second drive motors are also provided on the frame at one end of the first slide rail, and the output shafts of the two second drive motors are respectively connected to first lead screws, and the two first lead screws respectively pass through the grinding and polishing mechanism and the laser, and one of the first lead screws is threadedly engaged with the grinding and polishing mechanism, and the other first lead screw is threadedly engaged with the laser.

[0007] In some embodiments, the grinding and polishing mechanism and the laser both include a first slide seat slidably connected to the frame, a second slide seat is slidably connected to the first slide seat along the radial horizontal sliding direction of the roller, the second slide seat on one of the first slide seats is used to install the laser body, and the second slide seat on the other first slide seat is used to install the grinding assembly and the polishing assembly, and a third drive motor is also provided on the first slide, and the output shaft of the third drive motor is connected to a second lead screw, and the second lead screw passes through the second slide seat and is threadedly engaged with the second slide seat.

[0008] Exemplarily, the grinding and polishing mechanism also includes a bracket, a rotating arm, and a fourth drive motor; wherein the bracket is fixedly connected to the second slide; a rotating shaft is provided in the middle part of the rotating arm and is rotatably connected to the top end of the bracket, the axial direction of the rotating shaft is consistent with the sliding direction of the first slide, and a first worm gear is sleeved on the rotating shaft, and a grinding assembly and a polishing assembly are respectively provided at both ends of the rotating arm; the fourth drive motor is fixedly connected to the bracket, and the output shaft of the fourth drive motor is connected to the first worm, and the first worm is meshingly connected to the first worm gear.

[0009] For example, the grinding assembly includes a first connecting seat and a plurality of grinding strips, wherein the first connecting seat is connected to one end of the rotating arm, has a first arc surface matching the diameter of the roller body, and the first arc surface is provided with a plurality of first inclined grooves spaced apart along the axial direction of the rotating shaft; each grinding strip is respectively correspondingly embedded in each first inclined groove, and each grinding strip is in contact with the roller body in the grinding state;

[0010] The polishing assembly includes a second connecting seat and multiple polishing strips, wherein the second connecting seat is connected to the other end of the rotating arm, and has a second arc surface matching the diameter of the roller body, and the second arc surface is provided with multiple second inclined grooves spaced apart along the axial direction of the rotating shaft; each polishing strip is respectively embedded in each second inclined groove, and each polishing strip is in contact with the roller body in the polishing state.

[0011] In combination with the first aspect, in a possible implementation, a second slide rail extending axially along the output shaft of the first drive motor is provided between the first fixed seat and the second fixed seat, and two positioning frames for positioning the roll necks at both ends of the rolling mill are slidably connected to the second slide rail, and screws are passed through the two positioning frames along the extension direction of the second slide rail. The threads at both ends of the screw have opposite rotation directions, and the two ends are respectively screwed to the two positioning frames.

[0012] In some embodiments, the positioning frame includes:

[0013] A bracket is slidably connected to the second slide rail, and a plurality of rolling support members are spaced apart on the bracket along the lower arc line, each rolling support member is slidably connected to the bracket along the radial direction of the output shaft of the first drive motor, and each rolling support member is used to roll the lower half of the circumferential wall of the roller neck; a first positioning pin is provided on the rolling support member, and two second positioning pins are spaced apart on the bracket;

[0014] A pressing frame is arranged above the bracket, one end of the pressing frame is hinged to the bracket, and the other end is detachably connected to the bracket. A rolling pressing member is vertically slidably connected to the pressing frame, and the rolling pressing member is used to roll the upper half of the circumferential wall of the roller neck;

[0015] The first positioning semi-ring is provided with a plurality of first positioning holes spaced apart along its circumference, and the center of each first positioning hole is located on the lower arc line, and the first positioning semi-ring is also provided with two second positioning holes spaced apart;

[0016] The second positioning half ring can be buckled with the second positioning half ring to form a complete circular ring;

[0017] Among them, the arc center of the lower arc line is located on the center line of the output shaft of the first drive motor; when the two second positioning holes are pin-connected with the two second positioning pins, the inner ring surface of the first positioning semi-ring fits with the lower semi-circumferential wall of the roller neck, and each first positioning pin can be pin-connected with each first positioning hole one by one, and at the same time, after the second positioning semi-ring and the first positioning semi-ring are buckled up and down, the inner ring surface thereof fits with the upper semi-circumferential wall of the roller neck.

[0018] Exemplarily, the positioning frame also includes a fixed half ring, which is provided with pin holes corresponding to each first positioning hole and the two second positioning holes respectively. The fixed half ring is fixed to the bracket by corresponding pin connections with the two second positioning pins through two of the pin holes, and is pinned to the first positioning pins through the remaining pin holes to connect each rolling support member.

[0019] For example, the push mechanism includes:

[0020] A rotating sleeve is rotatably connected to the second fixed seat, and an inner peripheral wall of the rotating sleeve is provided with an internal thread;

[0021] The telescopic sleeve is inserted into the rotating sleeve, and the outer peripheral wall is provided with an external thread matching the internal thread. The peripheral wall of the telescopic sleeve is provided with a spline groove extending along its axial direction. The telescopic sleeve is also slidably matched with the spline sleeve provided on the second fixed seat.

[0022] A top shaft, one end of which is inserted into the telescopic sleeve and rotatably connected to the telescopic sleeve, and the other end of which is used to push the shaft head;

[0023] A fifth driving motor is fixedly connected to the second fixing base;

[0024] A second worm gear is connected to the second fixed seat for horizontal or vertical rotation and is connected to the output end of the fifth driving motor;

[0025] The second worm wheel is fixedly sleeved on the rotating sleeve and meshedly connected with the second worm.

[0026] The beneficial effect of the roller texturing treatment device provided by the present invention is that: compared with the prior art, in the roller texturing treatment device of the present invention, the shaft heads at both ends of the roller are coaxially connected to the output shaft of the first drive motor and the push mechanism respectively, so that the roller rotates under the drive of the first drive motor, and then the grinding and polishing mechanism first switches to the grinding state and slides along the axial direction of the roller, so that the grinding component grinds the roller body to reduce the roughness of the roller body, and then switches to the polishing state and slides along the axial direction of the roller after the grinding is completed, so that the polishing component polishes the roller body to improve the glossiness of the roller body surface, after the polishing is completed, the laser is turned on and slides along the axial direction of the roller body, and the laser emitting end performs laser texturing on the roller body to form the required point-shaped morphology on the roller body. Compared with the method of directly laser texturing the roller, after the roller body is processed by the grinding, polishing and laser texturing processes in sequence, the rolled stainless steel strip can form a neat point-shaped morphology while reducing the roughness of the stainless steel strip surface and improving the glossiness of the stainless steel strip surface.

[0027] In a second aspect, an embodiment of the present invention further provides a method for processing a stainless steel texture-free dotted surface, comprising the following steps:

[0028] The last two passes of the billet rolling process use laser texturing rolls with a roughness of 0.5 to 0.6 μm to preliminarily eliminate the surface texture of the stainless steel strip.

[0029] The roll texturing device is used to grind, polish and laser texturize the finished work rolls in sequence to form a dotted morphology on the peripheral wall thereof;

[0030] Finished product rolling is performed using work rolls formed with a dot-shaped morphology so that the dot-shaped morphology is copied onto the surface of the stainless steel strip from which the surface texture has been preliminarily eliminated.

[0031] The beneficial effect of the stainless steel texture-free dotted surface processing method provided by the present invention is that: compared with the prior art, the stainless steel texture-free dotted surface processing method of the present invention can preliminarily eliminate the original texture on the surface of the stainless steel strip by rolling the stainless steel strip with a 0.5-0.6 μm laser texturing roller in the last two passes of the blanking rolling, and then use a working roller that has been subjected to grinding, polishing, and laser texturing treatment in sequence in the finished product rolling stage. Since the working roller has been polished and brightened before the laser texturing treatment, and the original texture on the surface of the stainless steel strip has been basically eliminated, it can not only form a neat dotted morphology on the surface of the stainless steel strip product, but also reduce the surface roughness of the product and improve the surface gloss of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the three-dimensional structure of a roller texturing treatment device provided in an embodiment of the present invention;

[0033] Figure 2 A schematic diagram of the top view of the roller texturing treatment device provided in an embodiment of the present invention;

[0034] Figure 3 A schematic diagram of the three-dimensional structure of the grinding and polishing mechanism used in an embodiment of the present invention;

[0035] Figure 4 A schematic diagram of the three-dimensional structure of the grinding assembly used in an embodiment of the present invention;

[0036] Figure 5 A schematic diagram of the three-dimensional structure of a laser used in an embodiment of the present invention;

[0037] Figure 6 It is a schematic diagram of the three-dimensional structure of two positioning frames arranged on the frame in an embodiment of the present invention;

[0038] Figure 7 It is a front view structural schematic diagram of the positioning frame used in the embodiment of the present invention;

[0039] Figure 8 A schematic front view of the structure of a bracket used in an embodiment of the present invention;

[0040] Fig. 9 A schematic diagram of the structure of the first positioning half ring and the second positioning half ring in a matched state used in an embodiment of the present invention;

[0041] Fig.10 A schematic diagram of the structure of a fixed half ring used in an embodiment of the present invention is provided;

[0042] Fig.11 A schematic diagram of the three-dimensional structure of a rolling support member used in an embodiment of the present invention is provided;

[0043] Fig.12 A schematic diagram of the three-dimensional structure of the pushing mechanism used in the embodiment of the present invention is provided;

[0044] Fig.13 A schematic diagram of a roller structure applicable to the roller texturing treatment device provided in an embodiment of the present invention.

[0045] In the figure: 10, frame; 11, first fixed seat; 12, second fixed seat; 121, spline sleeve; 13, first drive motor; 14, push mechanism; 141, rotating sleeve; 142, telescopic sleeve; 1421, spline groove; 143, top shaft; 144, fifth drive motor; 145, second worm; 146, second worm wheel; 15, first slide rail; 16, second drive motor; 161, first lead screw; 17, second slide rail; 20, grinding and polishing machine; 21, grinding assembly; 211, first connecting seat; 212, grinding strip; 22, polishing assembly; 221, second connecting seat; 222, polishing strip; 23, bracket; 24, rotating arm; 241, rotating shaft; 242, first worm wheel; 25, fourth drive motor; 251, first worm; 30, laser; 31, The first slide; 32, the second slide; 300, the laser body; 33, the third drive motor; 331, the second lead screw; 40, the positioning frame; 41, the bracket; 400, the lower arc line; 411, the rolling support; 4111, the third slide; 4112, the bearing; 412, the first positioning pin; 413, the second positioning pin; 414, the long hole; 415, the fastening bolt; 42, the pressure frame; 421, the rolling pressure member; 4211, the slide; 4212, the pressure wheel; 4213, the threaded fastener; 422, the operating screw; 43, the first positioning semi-ring; 431, the first positioning hole; 432, the second positioning hole; 44, the second positioning semi-ring; 45, the fixing semi-ring; 451, the pin hole; 50, the screw; 60, the roller; 61, the shaft head; 62, the roller neck; 63, the roller body. DETAILED DESCRIPTION

[0046] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0047] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on another element or indirectly on another element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meanings of "multiple" and "several" are two or more, unless otherwise clearly and specifically defined.

[0048] Please also read Figures 1 to 5 and Fig.13 Now, the roller texturing treatment device provided by the present invention is described. The roller texturing device comprises a frame 10, a grinding and polishing machine 20, and a laser 30; wherein, a first fixed seat 11 and a second fixed seat 12 are respectively provided at both ends of the frame 10, a first driving motor 13 is provided on the first fixed seat 11, and a pushing mechanism 14 is provided on the second fixed seat 12, the output shaft of the first driving motor 13 and the pushing mechanism 14 are respectively used to coaxially connect the two end shaft heads 61 of the roller 60; the grinding and polishing machine 20 is connected to the frame 10 in an axial sliding manner along the output shaft of the first driving motor 13, and comprises a grinding component 21 and a polishing component 22; the grinding and polishing machine 20 has a grinding state in which the grinding component 21 fits and contacts with the roller body 63 of the roller 60, and also has a polishing state in which the polishing component 22 fits and contacts with the roller body 63; the laser 30 is connected to the frame 10 in an axial sliding manner along the output shaft of the first driving motor 13, and the laser emitting end of the laser 30 is horizontally aligned with the roller body 63, so as to perform laser texturing on the roller body 63.

[0049] It should be noted that after the roller 60 is connected to the output shaft of the first drive motor 13 and the pushing mechanism 14, it should be ensured that the circular runout of the roller body 63 meets the requirements, so as to ensure that the point morphology at each position of the roller body 63 after laser roughening treatment has a consistent degree of concave and convexity.

[0050] In addition, in this embodiment, the first drive motor 13 preferably adopts a motor with controllable and variable speed, such as a servo motor. During grinding and polishing, the roller 60 needs to be driven at a higher speed, and during laser texturing, the roller 60 needs to be driven at a lower speed and rotate intermittently.

[0051] Compared with the prior art, the roller texturing treatment device provided in this embodiment has two shaft heads 61 at both ends of the roller 60 coaxially connected to the output shaft of the first drive motor 13 and the push mechanism 14, respectively, so that the roller 60 is driven by the first drive motor 13 to rotate, and then the grinding and polishing machine 20 is first switched to the grinding state and slides along the axial direction of the roller 60, so that the grinding assembly 21 grinds the roller body 63 to reduce the roughness of the roller body 63, and then switches to the polishing state after the grinding is completed and slides along the axial direction of the roller 60, so that the polishing assembly 22 grinds the roller body 63 Polishing is performed to improve the surface glossiness of the roller body 63. After polishing is completed, the laser 30 is turned on and slides axially along the roller body 63. The emitting end of the laser 30 performs laser roughening treatment on the roller body 63 to form the required point-like morphology on the roller body 63. Compared with the method of directly performing laser roughening on the roller 60, after the roller body 63 is processed by sequential grinding, polishing, and laser roughening processes, the rolled stainless steel strip can form a neat point-like morphology while reducing the surface roughness of the stainless steel strip and improving the surface glossiness of the stainless steel strip.

[0052] In some embodiments, see Figure 2 A first slide rail 15 is provided on the side of the first fixed seat 11 and the second fixed seat 12 on the frame 10, and the first slide rail 15 extends along the axial direction of the output shaft of the first drive motor 13; the grinding and polishing machine 20 and the laser 30 are both slidably connected to the first slide rail 15, and two second drive motors 16 are also provided on the frame 10 at one end of the first slide rail 15, and the output shafts of the two second drive motors 16 are respectively connected to first lead screws 161, and the two first lead screws 161 respectively pass through the grinding and polishing machine 20 and the laser 30, and one of the first lead screws 161 is screwed together with the grinding and polishing machine 20, and the other first lead screw 161 is screwed together with the laser 30.

[0053] The grinding and polishing machine 20 and the laser 30 are connected to the first slide rail 15 together, and are driven by a set of second drive motors 16 and a first lead screw 161 respectively. When grinding and polishing are performed, the laser 30 is outside the length range of the roller body 63, and when laser texturing is performed, the grinding and polishing machine 20 is outside the length range of the roller body 63. The structure is compact, and a space suitable for an operator to approach the roller 60 and observe the surface treatment of the roller body 63 can be reserved on one side of the frame 10. In addition, the grinding and polishing machine 20 and the laser 30 both achieve sliding displacement by screwing with the first lead screw 161, which can ensure their displacement accuracy, especially can improve the uniformity of the point-like morphology formed on the roller body 63 during the laser texturing process.

[0054] It should be noted that, in this embodiment, Figures 1 to 5It is understood that the grinding and polishing machine 20 and the laser 30 both include a first slide 31 slidably connected to the frame 10, and a second slide 32 is slidably connected to the first slide 31 along the radial horizontal sliding connection of the roller 60, wherein the second slide 32 on one of the first slides 31 is used to install the laser body 300, and the second slide 32 on the other first slide 31 is used to install the grinding assembly 21 and the polishing assembly 22, and the first slide 31 is also provided with a third drive motor 33, and the output shaft of the third drive motor 33 is connected to a second lead screw 331, and the second lead screw 331 passes through the second slide 32 and is screwed with the second slide 32.

[0055] The first slide 31 is used to achieve a sliding connection with the first slide rail 15. The connection method is stable and reliable, and the sliding resistance is small, which can ensure the sliding stability of the grinding and polishing machine 20 and the laser 30, thereby improving the quality of grinding, polishing, and laser texturing. The second slide 32 slidably connected to the first slide 31 can realize the displacement of the laser body 300, the grinding assembly 21, and the polishing assembly 22 in the radial direction of the roller body 63. On the one hand, when the grinding and polishing machine 20 or the laser 30 needs to slide out of the length range of the roller body 63, the second slide 32 can be slid away from the roller body 63 to avoid interference between the grinding and polishing machine 20 or the laser 30 and the surrounding components. On the other hand, the distance between the laser emitting end of the laser body 300 and the roller body 63 during the laser texturing process can be adjusted by sliding the second slide 32, thereby adjusting the concave-convexity of the point-like morphology, and adjusting the resistance pressure between the grinding assembly 21 and the polishing assembly 22 and the roller body 63 by sliding the second slide 32, thereby adjusting the grinding and polishing strength.

[0056] Specifically, see Figure 3 In this embodiment, the grinding and polishing machine 20 also includes a bracket 23, a rotating arm 24, and a fourth driving motor 25; wherein the bracket 23 is fixedly connected to the second slide 32; a rotating shaft 241 is provided in the middle of the rotating arm 24, which is rotatably connected to the top of the bracket 23, and the axial direction of the rotating shaft 241 is consistent with the sliding direction of the first slide 31, and a first worm gear 242 is sleeved on the rotating shaft 241, and a grinding assembly 21 and a polishing assembly 22 are respectively provided at both ends of the rotating arm 24; the fourth driving motor 25 is fixedly connected to the bracket 23, and the output shaft of the fourth driving motor 25 is connected to the first worm 251, and the first worm 251 is meshed with the first worm gear 242.

[0057] The fourth drive motor 25 drives the first worm 251 to drive the first worm wheel 242 to rotate, thereby driving the rotating arm 24 to rotate through the rotating shaft 241 to switch the grinding state and the polishing state. At the same time, the self-locking performance of the worm gear transmission can be used to improve the stability of the grinding state and the polishing state, thereby ensuring the quality of grinding and polishing. At the same time, when the grinding and polishing machine 20 needs to move beyond the length range of the roller body 63 during laser roughening treatment, the rotating arm 24 can be rotated to a vertical state to avoid interference or collision with surrounding components.

[0058] Exemplarily, the grinding assembly 21 is as follows Figure 4 As shown, it includes a first connecting seat 211 and a plurality of grinding strips 212, wherein the first connecting seat 211 is connected to one end of the rotating arm 24, and has a first arc surface matching the diameter of the roller body 63, and a plurality of first inclined grooves are distributed on the first arc surface along the axial direction of the rotating shaft 241; each grinding strip 212 is respectively embedded in each first inclined groove, and each grinding strip 212 is in contact with the roller body 63 in the grinding state.

[0059] For an example, see Figure 3 The polishing assembly 22 includes a second connecting seat 221 and a plurality of polishing strips 222, wherein the second connecting seat 221 is connected to the other end of the rotating arm 24, and has a second arc surface matching the diameter of the roller body 63, and a plurality of second inclined grooves are distributed on the second arc surface along the axial direction of the rotating shaft 241; each polishing strip 222 is respectively embedded in each second inclined groove, and each polishing strip 222 is in contact with the roller body 63 in the polishing state.

[0060] It should be noted that, in the present embodiment, the first connecting seat 211 and the second connecting seat 221 are preferably rotatably connected to the rotating arm 24 to ensure that each grinding strip 212 and polishing strip 222 can fit tightly with the roller body 63 in the grinding state and the polishing state, thereby avoiding the situation where the grinding strip 212 and the polishing strip 222 cannot fit tightly with the roller body 63 due to the processing or assembly errors of the first arc surface and the second arc surface, thereby ensuring the grinding and polishing quality.

[0061] Furthermore, the rotation range of the first connecting seat 211 and the second connecting seat 221 relative to the rotating arm 24 is within ten degrees, so as to ensure that the first arc surface and the second arc surface can face the roller body 63 when switching between the grinding state and the polishing state, so that the second slide seat 32 slides toward the roller body 63 to make the grinding bar 212 and the polishing bar 222 fit on the roller body 63, avoiding the situation that the grinding state and the polishing state cannot be switched smoothly due to the excessive free rotation angle of the first connecting seat 211 and the second connecting seat 221.

[0062] In this embodiment, the inclination angle of the grinding strips 212 causes the horizontal spacing between the two ends to be greater than the horizontal spacing between adjacent grinding strips 212, so as to ensure that the adjacent grinding strips 212 have at least partial overlap in the axial direction of the rotating shaft 241, thereby ensuring that the multiple grinding strips 212 can form a continuous grinding surface. Specifically, it can be understood that the rotation of each grinding strip 212 in conjunction with the roller body 63 actually forms a spiral grinding working process, which can ensure the grinding consistency at any position of the roller body 63 and improve the grinding quality.

[0063] Similarly, in this embodiment, the inclination angle of the polishing strip 222 causes the horizontal spacing between its two ends to be greater than the horizontal spacing between adjacent polishing strips 222, so as to ensure that there is at least partial overlap between adjacent polishing strips 222 in the axial direction of the rotating shaft 241, thereby ensuring that multiple polishing strips 222 can form a continuous polishing surface, thereby improving the polishing quality.

[0064] Compared with the conventional method of grinding and polishing using grinding sheets and polishing wheels, the combination of multiple grinding strips 212 and polishing strips 222 for grinding and polishing can ensure the fit between the roller body 63 due to the smaller contact area between the strip structure and the roller body 63, thereby improving the grinding and polishing effect. When the grinding strip 212 or the polishing strip 222 is worn, it can be directly removed from the first bevel groove or the second bevel groove and replaced with a new one.

[0065] For some possible implementations, see Figure 1 , Figure 2 and Figure 6 A second slide rail 17 extending along the axial direction of the output shaft of the first drive motor 13 is provided between the first fixed seat 11 and the second fixed seat 12. Two positioning frames 40 are slidably connected to the second slide rail 17 and are respectively used to position the roll necks 62 at both ends of the rolling roller 60. A screw rod 50 is passed through the two positioning frames 40 along the extension direction of the second slide rail 17. The threads at both ends of the screw rod 50 are rotated in opposite directions, and the two ends are respectively screwed to the two positioning frames 40.

[0066] The roller necks 62 at both ends of the roller 60 are supported and positioned by setting two positioning frames 40 whose spacing can be adjusted by rotating a screw 50. Since the spacing between the two roller necks 62 is smaller than the distance between the shaft heads 61 at both ends, on the one hand, it helps to reduce the circular runout of the roller body 63 after the roller 60 is fixed, thereby improving the surface treatment quality of the roller body 63. On the other hand, it can reduce the difficulty of accurately fixing the roller 60 to meet the circular runout requirements, which helps to improve the processing efficiency of the roller 60.

[0067] As a specific implementation of the positioning frame 40, please refer to Figures 6 to 11 , the positioning frame 40 includes a bracket 41, a pressing frame 42, a first positioning half ring 43 and a second positioning half ring 44;

[0068] The bracket 41 is slidably connected to the second slide rail 17. A plurality of rolling support members 411 are spaced apart along the lower arc line 400 on the bracket 41. Each rolling support member 411 is slidably connected to the bracket 41 along the radial direction of the output shaft of the first drive motor 13, and each rolling support member 411 is used to roll the lower half of the circumferential wall of the roller neck 62. A first positioning pin 412 is provided on the rolling support member 411, and two second positioning pins 413 are spaced apart on the bracket 41.

[0069] The pressing frame 42 is arranged above the bracket 41, one end of the pressing frame 42 is hinged to the bracket 41, and the other end is detachably connected to the bracket 41. A rolling pressing member 421 is vertically slidably connected to the pressing frame 42, and the rolling pressing member 421 is used to roll the upper half of the circumferential wall of the roller neck 62;

[0070] Among them, the rolling pressure member 421 includes a double T-shaped slide 4211 vertically slidably connected to the pressure frame 42, and the bottom ends of the two vertical arms of the slide 4211 are respectively connected to a pressure wheel 4212, and a threaded fastener 4213 is passed through the crossbeam of the slide 4211, and the threaded fastener 4213 is screwed to the pressure frame 42.

[0071] The first positioning semi-ring 43 is provided with a plurality of first positioning holes 431 spaced apart along its circumference, and the center of each first positioning hole 431 is located on the lower arc line 400. The first positioning semi-ring 43 is also provided with two second positioning holes 432 spaced apart; the second positioning semi-ring 44 can be buckled with the second positioning semi-ring 44 up and down to form a complete circular ring;

[0072] Among them, the arc center of the lower arc line 400 is located on the center line of the output shaft of the first drive motor 13; when the two second positioning holes 432 are pin-connected with the two second positioning pins 413, the inner annular surface of the first positioning semi-ring 43 fits with the lower semi-circular wall of the roller neck 62, and each first positioning pin 412 can be pin-connected with each first positioning hole 431 one by one, and at the same time, after the second positioning semi-ring 44 is buckled with the first positioning semi-ring 43 up and down, its inner annular surface fits with the upper semi-circular wall of the roller neck 62.

[0073] It should be noted that, in the present embodiment, the first positioning half ring 43 and the second positioning half ring 44 are customized for the roller 60 for belt processing, and are only used to ensure that the circular run-out of the roller 60 meets the requirements when installing the roller 60. They can be removed after the installation and fixation of the roller 60 is completed, so as to avoid the wear of the rotating roller neck 62 during the processing of the roller 60.

[0074] In this embodiment, the rolling support member 411 includes a third slide seat 4111 slidably connected to the bracket 41 and a bearing 4112 connected to the third slide seat 4111 for rolling the roller body 63, wherein the third slide seat 4111 is provided with an elongated hole 414 extending along its sliding direction, and a fastening bolt 415 threadedly connected to the bracket 41 is passed through the elongated hole 414. When the third slide seat 4111 needs to be slid, the fastening bolt 415 is loosened, and then retightened after sliding into place.

[0075] The operation steps of the positioning frame 40 in this embodiment are:

[0076] The detachable connection between the pressing frame 42 and the bracket 41 is removed by unscrewing the operating screw 422 on the pressing frame 42 that is screwed to the bracket 41, and then flipping the pressing frame 42 upward to make way;

[0077] Each first positioning hole 431 of the first positioning half ring 43 is pinned to the first positioning pin 412 on each rolling support member 411, so that each rolling support member 411 is connected as a whole through the first positioning half ring 43, and then the position of the second positioning half ring 44 is adjusted to drive each rolling support member 411 to move adaptively until the two second positioning holes 432 on the first positioning half ring 43 are aligned with the two second positioning pins 413 and pinned;

[0078] After the above operations are completed on both brackets 41, the roller 60 is placed, and the roller necks 62 outside the two ends of the roller body 63 are placed on the respective rolling support members 411 on the two brackets 41. At this time, since each rolling support member 411 is positioned on the lower arc line 400 by the first positioning semi-ring 43, each rolling support member 411 can contact with the roller neck 62. On this basis, the inner ring surface of the first positioning semi-ring 43 should also be completely in contact with the roller neck 62.

[0079] Then, for the purpose of determining the reliability of the position of the roller neck 62, the second positioning half ring 44 is used for verification. The second positioning half ring 44 is buckled on the roller neck 62 at one side of the first positioning half ring 43 so that its inner ring surface fits with the upper semicircular wall of the roller neck 62. Then, the second positioning half ring 44 is slid along the roller neck 62 toward the first positioning half ring 43 to observe whether the two can be completely matched to form a complete circular ring. If there is no matching gap between the two, it means that the roller neck 62 is accurately positioned, and each rolling support 411 can be directly fixedly connected to the bracket 41. If there is a gap between the two, it means that there is still a deviation in the positioning of the roller neck 62. The root cause of the deviation lies in the size error and assembly gap of each rolling support 411 itself. Therefore, when a deviation occurs, only the rolling support 411 needs to be fine-tuned until the second positioning half ring 44 can be seamlessly matched with the first positioning half ring 43. Then, each rolling support 411 is fixedly connected to the bracket 41.

[0080] After the two positioning frames 40 have been positioned and adjusted as mentioned above, the pressing frame 42 can be flipped over and reset and fixed to the bracket 41. After the fixing is completed, the output shaft of the first drive motor 13 and the pushing mechanism 14 can be connected to the two shaft heads 61 respectively. Of course, in order to further confirm whether the circular runout meets the requirements, after the connection is completed, the dial indicator fixed on the laser 30 or the grinding and polishing machine 20 can be used for detection when the first drive motor 13 drives the roller 60 to rotate.

[0081] By positioning and rolling the two roller necks 62 with two positioning frames 40, the difficulty of adjusting the fixed position required for circular runout during the fixing of the roller 60 can be greatly reduced, and the adjustment time can be reduced. At the same time, since the distance between the two points for positioning and fixing the roller 60 is reduced, the reliability of fixing the roller 60 is improved. In addition, by using different first positioning half rings 43 and second positioning half rings 44 and cooperating with the screw 50 to adjust the distance between the two positioning frames 40, the installation and fixation of rollers 60 of different sizes can be met, thereby improving the scope of application.

[0082] Furthermore, in this embodiment, the positioning frame 40 further includes a fixed half ring 45, on which pin holes 451 are respectively corresponding to each first positioning hole 431 and the two second positioning holes 432. The fixed half ring 45 is fixed to the bracket 41 through two of the pin holes 451 and the two second positioning pins 413, and is correspondingly pinned to each first positioning pin 412 through the remaining pin holes 451 to connect each rolling support 411. Different from the first positioning half ring 43 and the second positioning half ring 44, the inner ring surface diameter of the fixed half ring 45 is larger than the roller neck 62, so it does not contact the roller neck 62. The provision of the fixed half ring 45 here can prevent the rolling support 411 from being misaligned during the processing of the roller 60, thereby improving stability.

[0083] Alternatively, see Figure 1 , Figure 2 and Fig.12In this embodiment, the push mechanism 14 includes a rotating sleeve 141, a telescopic sleeve 142, a top shaft 143, a fifth drive motor 144, a second worm 145, and a second worm wheel 146; wherein the rotating sleeve 141 is rotatably connected to the second fixed seat 12, and the inner peripheral wall of the rotating sleeve 141 is provided with an internal thread; the telescopic sleeve 142 is inserted into the rotating sleeve 141, and the outer peripheral wall is provided with an external thread matching the internal thread, and the peripheral wall of the telescopic sleeve 142 is provided with a spline groove 1421 extending along its axial direction, and the telescopic sleeve 142 is also connected with the second fixed seat 12. The spline sleeve 121 provided on the second fixed seat 12 is slidably matched; one end of the top shaft 143 is passed through the telescopic sleeve 142 and is rotatably connected to the telescopic sleeve 142, and the other end is used to push the shaft head 61; the fifth drive motor 144 is fixedly connected to the second fixed seat 12; the second worm 145 is horizontally or vertically rotatably connected to the second fixed seat 12, and is connected to the output end of the fifth drive motor 144; the second worm wheel 146 is fixedly sleeved on the rotating sleeve 141, and is meshedly connected to the second worm 145.

[0084] The fifth drive motor 144 drives the second worm 145 to drive the second worm wheel 146 to rotate, thereby driving the rotating sleeve 141 to rotate. The rotational movement of the rotating sleeve 141 is converted into the axial telescopic movement of the telescopic sleeve 142 through the matching relationship between the internal thread and the external thread, so that the top shaft 143 tightens or loosens the shaft head 61, and when the first drive motor 13 drives the rolling roller 60 to rotate, the top shaft 143 can follow the rotation, thereby ensuring the connection stability of the shaft head 61 at this end.

[0085] It should be understood that in this embodiment, each drive motor preferably adopts a servo motor or a stepper motor to ensure the movement and control accuracy of each component. Each action and the corresponding logical control rely on the controller. The specific control methods are all existing technologies and will not be described in detail here.

[0086] Based on the same inventive concept, the embodiment of the present application also provides a method for processing a stainless steel texture-free dotted surface, comprising the following steps:

[0087] The last two passes of the rolling process 60 use a laser texturing roll with a roughness of 0.5 to 0.6 μm to preliminarily eliminate the surface texture of the stainless steel strip.

[0088] The roll texturing device is used to grind, polish and laser texturize the finished work rolls in sequence to form a dotted morphology on the peripheral wall thereof;

[0089] Finished product rolling is performed using work rolls formed with a dot-shaped morphology so that the dot-shaped morphology is copied onto the surface of the stainless steel strip from which the surface texture has been preliminarily eliminated.

[0090] It should be noted that the method for processing the texture-free dotted surface of stainless steel provided in this embodiment uses existing parameters for the 60 passes and rolling parameters of the rolling rollers in the entire rolling process, and also has an annealing process between the blank rolling and finished product rolling processes, that is, the same two-rolling and one-annealing process as the prior art is adopted. The key lies in the improvement of the surface treatment method of the rolling roller 60, so as to achieve the purpose of improving the surface quality of stainless steel products.

[0091] In the process of realizing the present invention, the inventors found that the main factors for the decrease in glossiness of the roller 60 of the stainless steel strip after conventional laser texturing treatment are, on the one hand, the increase in roughness due to the copying of the point-like morphology, and on the other hand, the insufficient glossiness of the roller body 63 of the roller 60, which causes a higher grayscale on the surface of the stainless steel strip. Based on the above findings, grinding the working roller of the finished rolling product can first solve the problem of high surface roughness of the stainless steel strip, and then polishing it to improve the glossiness of the roller body 63, thereby improving the surface glossiness of the stainless steel strip product after rolling. In actual testing, the working roller after grinding-polishing-texturing treatment can increase the surface glossiness of the stainless steel strip after removing the original texture to more than 500Gu.

[0092] It should also be noted that in this embodiment, since the last two passes of the laser texturing roller are used to eliminate the original texture on the product surface during the blank rolling process, the original texture can be eliminated more thoroughly compared to the method of covering and eliminating it after the product processing is completed.

[0093] Compared with the prior art, the method for processing the texture-free dotted surface of stainless steel provided by the present invention can preliminarily eliminate the original texture on the surface of the stainless steel strip by rolling the stainless steel strip with a laser texturing roller of 0.5 to 0.6 μm in the last two passes of the blanking rolling, and then use the working roller that has been subjected to grinding, polishing and laser texturing treatment in sequence in the finished product rolling stage. Since the working roller has been polished and brightened before the laser texturing treatment, and the original texture on the surface of the stainless steel strip has been basically eliminated, not only can the surface of the stainless steel strip product form a neat dotted morphology, but also the surface roughness of the product can be reduced and the surface gloss of the product can be improved.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A roller texturing device, characterized in that: include: A frame, wherein a first fixing seat and a second fixing seat are respectively provided at both ends of the frame, the first fixing seat is provided with a first driving motor, the second fixing seat is provided with a pushing mechanism, and the output shaft of the first driving motor and the pushing mechanism are respectively used to coaxially connect the shaft heads at both ends of the roller; A grinding and polishing mechanism is slidably connected to the frame along the axial direction of the output shaft of the first driving motor, and comprises a grinding assembly and a polishing assembly; the grinding and polishing mechanism has a grinding state in which the grinding assembly and the roller body of the roller are in contact with each other, and also has a polishing state in which the polishing assembly and the roller body are in contact with each other; A laser is slidably connected to the frame along the axial direction of the output shaft of the first driving motor, and a laser emitting end of the laser is horizontally aligned with the roller body, so as to perform laser texturing on the roller body; The grinding and polishing mechanism first switches to the grinding state and slides along the axial direction of the roller, so that the grinding component grinds the roller body to reduce the roughness of the roller body, and then switches to the polishing state and slides along the axial direction of the roller after the grinding is completed, so that the polishing component polishes the roller body to improve the surface gloss of the roller body, and after the polishing is completed, the laser is turned on and slides along the axial direction of the roller body, and the emitting end of the laser performs laser roughening treatment on the roller body to form the required dot-shaped morphology on the roller body; A second slide rail extending along the axial direction of the output shaft of the first drive motor is provided between the first fixed seat and the second fixed seat, and two positioning frames respectively used for positioning the roll necks at both ends of the roll are slidably connected to the second slide rail, and a screw rod is passed through the two positioning frames along the extension direction of the second slide rail, and the threads at both ends of the screw rod have opposite rotation directions, and the two ends are respectively screwed with the two positioning frames; the positioning frame comprises: A bracket is slidably connected to the second slide rail, and a plurality of rolling support members are spaced apart on the bracket along the lower arc line, each of the rolling support members is slidably connected to the bracket along the radial direction of the output shaft of the first drive motor, and each of the rolling support members is used to roll the lower half of the circumferential wall of the roller neck; a first positioning pin is provided on the rolling support member, and two second positioning pins are spaced apart on the bracket; A pressing frame is arranged above the bracket, one end of the pressing frame is hinged to the bracket, and the other end is detachably connected to the bracket, a rolling pressing member is vertically slidably connected to the pressing frame, and the rolling pressing member is used to roll the upper half of the circumferential wall of the roll neck; The first positioning semi-ring is provided with a plurality of first positioning holes spaced apart along its circumference, and the center of each of the first positioning holes is located on the lower arc line, and the first positioning semi-ring is also provided with two second positioning holes spaced apart; A second positioning half ring, which can be buckled with the second positioning half ring up and down to form a complete circular ring; The arc center of the lower arc line is located on the center line of the output shaft of the first drive motor; when the two second positioning holes are pinned correspondingly with the two second positioning pins, the inner ring surface of the first positioning semi-ring fits with the lower semi-circumferential wall of the roll neck, and each of the first positioning pins can be pinned correspondingly with each of the first positioning holes respectively, and at the same time, after the second positioning semi-ring and the first positioning semi-ring are buckled up and down, the inner ring surface thereof fits with the upper semi-circumferential wall of the roll neck; The grinding and polishing mechanism and the laser both include a first slide seat slidably connected to the frame, a second slide seat is slidably connected to the first slide seat along the radial horizontal direction of the roller, the second slide seat on one of the first slide seats is used to install the laser body, and the second slide seat on the other first slide seat is used to install the grinding assembly and the polishing assembly, the first slide seat is also provided with a third driving motor, the output shaft of the third driving motor is connected to a second lead screw, the second lead screw passes through the second slide seat and is screwed to the second slide seat; The grinding and polishing mechanism also includes: A bracket, fixedly connected to the second slide seat; A rotating arm, wherein a rotating shaft is provided in the middle part and is rotatably connected to the top end of the bracket, the axial direction of the rotating shaft is consistent with the sliding direction of the first slide seat, and a first worm gear is sleeved on the rotating shaft, and the grinding assembly and the polishing assembly are provided at both ends of the rotating arm respectively; a fourth drive motor, fixedly connected to the bracket, wherein an output shaft of the fourth drive motor is connected to a first worm, and the first worm is meshingly connected to the first worm wheel; The grinding assembly comprises a first connecting seat and a plurality of grinding strips, wherein the first connecting seat is connected to one end of the rotating arm, has a first arc surface matching the diameter of the roller body, and the first arc surface is provided with a plurality of first inclined grooves spaced apart along the axial direction of the rotating shaft; each of the grinding strips is respectively and correspondingly embedded in each of the first inclined grooves, and each of the grinding strips is in contact with the roller body in the grinding state; The polishing assembly includes a second connecting seat and a plurality of polishing strips, wherein the second connecting seat is connected to the other end of the rotating arm, and has a second arc surface matching the diameter of the roller body, and the second arc surface is provided with a plurality of second inclined grooves spaced apart along the axial direction of the rotating shaft; each of the polishing strips is respectively embedded in each of the second inclined grooves, and each of the polishing strips is in contact with the roller body in the polishing state.

2. The roller texturing treatment device according to claim 1, characterized in that: A first slide rail is provided on the frame at the side of the first fixed seat and the second fixed seat, and the first slide rail extends along the axial direction of the output shaft of the first drive motor; the grinding and polishing mechanism and the laser are both slidably connected to the first slide rail, and two second drive motors are also provided on the frame at one end of the first slide rail, and the output shafts of the two second drive motors are respectively connected to first lead screws, and the two first lead screws respectively pass through the grinding and polishing mechanism and the laser, and one of the first lead screws is threadedly engaged with the grinding and polishing mechanism, and the other first lead screw is threadedly engaged with the laser.

3. The roller texturing treatment device according to claim 1, characterized in that: The positioning frame also includes a fixed half ring, which is provided with pin holes corresponding to each of the first positioning holes and the two second positioning holes respectively. The fixed half ring is fixed to the bracket by corresponding pin connections with the two second positioning pins through two of the pin holes, and is connected to each of the rolling support members by corresponding pin connections with each of the first positioning pins through the remaining pin holes.

4. The roller texturing device according to any one of claims 1 to 3, characterized in that: The pushing mechanism comprises: A rotating sleeve, rotatably connected to the second fixing seat, wherein the inner peripheral wall of the rotating sleeve is provided with an internal thread; A telescopic sleeve is inserted into the rotating sleeve, and the outer peripheral wall is provided with an external thread matching the internal thread, the peripheral wall of the telescopic sleeve is provided with a spline groove extending along its axial direction, and the telescopic sleeve is also slidably matched with the spline sleeve provided on the second fixed seat; A top shaft, one end of which is inserted into the telescopic sleeve and rotatably connected to the telescopic sleeve, and the other end of which is used to push the shaft head; a fifth driving motor, fixedly connected to the second fixing base; A second worm gear is connected to the second fixing seat for horizontal or vertical rotation and is connected to an output end of the fifth driving motor; The second worm wheel is fixedly sleeved on the rotating sleeve and meshedly connected with the second worm.

5. A method for processing a stainless steel non-textured dotted surface, characterized in that: The following steps are involved: The last two passes of the billet rolling process use laser texturing rolls with a roughness of 0.5-0.6 μm to preliminarily eliminate the surface texture of the stainless steel strip. The roller texturing device as claimed in any one of claims 1 to 4 is used to grind, polish and laser texturize the finished rolling work roller in sequence to form a dot-shaped morphology on its peripheral wall; The work rolls formed with the dot-shaped morphology are used to perform product rolling, so that the dot-shaped morphology is copied onto the surface of the stainless steel strip whose surface texture has been preliminarily eliminated.

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