Roll changing mechanism for strip surface treatment

Abstract

The present invention discloses a roller-changing mechanism for strip steel surface treatment, comprising a frame, a grinding chamber provided on the frame, and two pairs of guide rollers for guiding the strip steel provided on the frames on both sides of the grinding chamber. Each pair of guide rollers is symmetrically distributed up and down and forms a plate-passing channel in the middle. A grinding assembly is provided in the grinding chamber, and a material-changing assembly is fixedly mounted on the top of each grinding assembly. The grinding assembly includes a pair of support shaft seats movably connected to the frame, and a grinding roller is detachably connected to the support shaft seats. The material-changing assembly includes a new roller bearing seat and an old roller bearing seat. When the support shaft seats rotate to a roller-changing position, the grinding roller is removed and detached from the support shaft seats to the old roller bearing seat, and the new grinding roller on the new roller bearing seat is transferred to the support shaft seat. The present invention can semi-automatically replace severely worn grinding rollers, reducing the time workers spend installing and removing grinding rollers, saving time and effort while also improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of strip steel processing, in particular to a roll changing mechanism used in a strip steel surface pretreatment link. Background Art

[0002] During the production or subsequent surface treatment of strip steel, its surface needs to be polished to ensure its smoothness. The grinding roller used to polish the strip steel surface on the existing grinding machine will become smooth after long-term use, which is not conducive to subsequent polishing operations. If the existing roller changing mechanism adopts a fully automated design, it will have very high requirements on process and precision, which will greatly increase the cost; if it relies entirely on manual labor, replacing the grinding roller is time-consuming and labor-intensive. For this reason, a roller changing mechanism for strip steel surface treatment is proposed, which can assist operators in changing rollers, thereby reducing processing costs and making roller changing operations simple. Summary of the Invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to provide a roller changing mechanism that assists operators in their work and achieves a balance between economy and operational convenience.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The automatic roller changing mechanism for strip surface treatment includes a frame, a grinding chamber for grinding the strip is provided on the frame, two pairs of guide rollers for guiding the strip are provided on the frames on both sides of the grinding chamber, each pair of guide rollers is symmetrically distributed up and down and forms a plate passage in the middle, at least two grinding assemblies are provided in the grinding chamber, and a material changing assembly is fixedly installed on the top of each grinding assembly, the grinding assembly includes a pair of support shaft seats movably connected to the frame, and a grinding roller is detachably connected to the support shaft seat; the material changing assembly has a new roller bearing seat and an old roller bearing seat, and when the support shaft seat rotates to the roller changing position, the grinding roller is unloaded and detached from the support shaft seat to the old roller bearing seat, and the new grinding roller on the new roller bearing seat is transferred to the support shaft seat.

[0006] Preferably, a hydraulic rod and a fixed sleeve are fixedly installed on the support shaft seat, the fixed sleeve includes an arc block 2 fixedly connected to the support shaft seat, an arc block 1 is movably installed on the arc block 2, the arc block 1 and the output end of the hydraulic rod are fixedly connected together, and the grinding roller is rotatably installed between the arc block 1 and the arc block 2.

[0007] The rod seat of the hydraulic rod is fixed to the side wall of the support shaft seat by screws or welding. The fixing sleeve is divided into a fixed part and a movable part, which makes the separation and closing operations simple and can be completed by simply extending and retracting the hydraulic rod.

[0008] Preferably, the support shaft seat is provided with a mounting slot, into which the grinding roller is mounted. The material replacement assembly includes a second rotating column and a third rotating column arranged above the frame, which are rotatable and spaced apart. A plurality of first support plates arranged perpendicular thereto are fixedly mounted on the second rotating column, and the second rotating column and the first support plate constitute a new roller support seat. A plurality of second support plates arranged perpendicular thereto are fixedly mounted on the third rotating column, and the third rotating column and the second support plate constitute a used roller support seat. The new roller and the old roller are mounted on the support plates of their respective support seats, and are located above the grinding chamber, close to the working position of the grinding roller, providing convenience for roller replacement.

[0009] Preferably, the material changing assembly further comprises two mounting brackets 2, with the respective ends of the second and third rotating columns being rotatably connected to the corresponding mounting brackets 2. The bottom ends of the second mounting brackets are fixedly mounted with two vertical rods, the bottom ends of both vertical rods being fixedly connected to the machine frame. The mounting brackets 2 stand vertically on either side of the machine frame, with the second and third rotating columns stacked one above the other to prevent interference with the brushing operation within the grinding chamber.

[0010] Preferably, both sides of the top of the support plate 1 and the support plate 2 are fixedly mounted with limit plates to prevent the grinding roller from rolling off. When the grinding roller is placed on the support plate, the limit plates can prevent it from rolling off the support plate.

[0011] Preferably, the ends of the second and third rotating columns that are adjacent to each other are each fixedly mounted with a hinged rod, and the ends of the two hinged rods that are adjacent to each other are hingedly connected to a common hinge block. An L-shaped rod is fixedly mounted on the side of the second mounting frame that is adjacent to the hinge block, and a second motor is fixedly mounted on the L-shaped rod, and the output shaft of the second motor is fixedly connected to the hinge block. The rotation of the hinge block drives the two hinged rods to rotate synchronously, causing the second and third rotating columns to rotate synchronously, thereby causing the new roller bearing seat to tilt synchronously with the old roller bearing seat, facilitating the removal or replacement of the grinding roller.

[0012] Preferably, the hinge block is symmetrically provided with two waist-shaped holes, and the end of the hinge rod is provided with a guide shaft, which is inserted into the waist-shaped hole. Such an arrangement makes the rotation smoother and avoids jamming.

[0013] Preferably, the grinding assembly further comprises two mounting brackets 1 fixedly connected to the frame, a rotating column 1 being rotatably mounted between the two mounting brackets 1, a support shaft seat and the rotating column 1 being fixedly connected together, a motor 1 being fixedly mounted on one side of one of the mounting brackets 1, an output shaft of the motor 1 being fixedly connected to the rotating column 1; the motor 1 outputs power. The motor 1 controls the rotation of the rotating column 1, allowing the roller to be removed from the grinding chamber when changing the roller, facilitating the next operation.

[0014] Preferably, two guide holes are symmetrically formed on the arc block 1, and two guide rods are fixedly mounted on one side of the arc block 2 close to the arc block 1. The guide rods are inserted into the guide holes to achieve installation positioning and press fit of the two arc blocks.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides a roller changing mechanism for strip steel surface treatment, wherein a grinding bin is arranged on a frame, and a grinding assembly and a material changing assembly are arranged above the grinding bin from bottom to top, that is, the grinding assembly and the material changing assembly are integrated, and the material changing assembly is arranged above the grinding assembly, so that new grinding rollers can be stored or storage space for old rollers can be reserved on a daily basis without affecting the operation of the grinding assembly; two pairs of guide rollers are provided at the feeding front end of the first group of grinding assemblies and the discharging end of the last group of grinding assemblies, and the strip steel moves along the guide rollers during grinding, and multiple groups of grinding assemblies perform surface grinding on the strip steel, and when the grinding rod is severely worn and needs to be replaced, when the support shaft seat is rotated to the roller changing position, the grinding roller is removed from the support shaft seat to the old roller bearing seat, and the new grinding roller on the new roller bearing seat is transferred to the support shaft seat.

[0017] Different from the traditional structure of directly changing rollers for strip surface grinding, the present invention can semi-automatically replace the severely worn grinding roller, reducing the time for workers to install and disassemble the grinding rod, ensuring that the grinding roller in contact with the strip always has an excellent grinding effect, saving time and effort while also improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 Schematic diagram of the overall structure of the grinding assembly in the present invention;

[0020] Figure 3 Schematic diagram of the overall structure of the material replacement assembly in the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of part A;

[0022] Figure 5 An exploded view of the fixed sleeve of the present invention.

[0023] In the figure: 1. Grinding chamber; 2. Guide roller; 3. Grinding assembly; 31. Mounting frame 1; 32. Rotating column 1; 33. Support shaft seat; 34. Mounting slot; 35. Hydraulic rod; 36. Fixed sleeve; 361. Arc block 1; 362. Arc block 2; 363. Guide hole; 364. Guide rod; 37. Grinding roller; 38. Motor 1; 4. Material changing assembly; 41. Mounting frame 2; 42. Rotating column 2; 43. Rotating column 3; 44. Support plate 1; 45. Support plate 2; 46. Vertical pole; 47. Articulated rod; 48. Articulated block; 49. L-shaped rod; 410. Motor 2; 50. Frame. Implementation Method

[0024] The present invention will be further described below with reference to specific embodiments. Figure 1-5 :

[0025] The present invention provides a roll changing mechanism for strip surface treatment, such as Figure 1 As shown, the existing grinding structure for grinding the surface of the strip steel by means of a grinding roller 37 is generally composed of a frame 50, a grinding assembly 3, and a guide roller 2. The roller changing mechanism of this embodiment is provided with a material changing assembly 4, which includes a new roller bearing seat and an old roller bearing seat. When changing the rollers, the grinding assembly 3 is rotated to the roller changing position, and the worker uses the material changing assembly 4 to cooperate with the roller changing. The following is a detailed description of how the roller changing mechanism realizes the relevant arrangement of convenient roller changing:

[0026] The roller changing mechanism of this embodiment is as follows Figure 1 As shown, the machine comprises a frame 50, on which is mounted a grinding chamber 1 for grinding the steel strip. Two pairs of guide rollers 2 for guiding the steel strip are mounted on the frame 50 on either side of the grinding chamber 1. Each pair of guide rollers 2 is symmetrically arranged vertically and defines a plate-passing channel in the middle. Grinding assemblies 3 are located within the grinding chamber 1. The number of grinding assemblies 3 is determined based on the length of the grinding chamber 1 and the surface quality of the steel strip. At least two sets of grinding assemblies 3 are provided, and a reloading assembly 4 is fixedly mounted above each set of grinding assemblies 3.

[0027] Specific instructions, such as Figure 3 、 Figure 4The material changing assembly 4 shown includes a rotating column 2 42 and a rotating column 3 43 that are rotatably arranged at intervals above the frame 50. The material changing assembly 4 also includes a mounting frame 2 41. The rotating column 2 42 and the rotating column 3 43 are respectively installed in parallel with the two mounting frames 2 41, wherein the interval between the rotating column 2 42 and the rotating column 3 43 is larger than the diameter of the grinding roller 37. Two vertical rods 46 are fixedly installed at the bottom end of the mounting frame 2 41, and the two vertical rods 46 are fixedly connected to the frame 50; a plurality of support plates 1 44 arranged perpendicular to the rotating column 2 42 are fixedly installed, and the rotating column 2 42 and the support plate 1 44 constitute a new roller bearing seat; a plurality of support plates 2 45 arranged perpendicular to the rotating column 3 43 are fixedly installed, and the rotating column 3 43 and the support plate 2 45 together constitute an old roller bearing seat; both sides of the top of the support plate 1 44 and the support plate 2 45 are fixedly installed with limit plates to prevent the grinding roller 37 from rolling down.

[0028] To further explain, Figure 2 The grinding assembly 3 shown includes a pair of support shaft seats 33 movably connected to the frame 50, and a mounting groove 34 is provided on the support shaft seat 33. The grinding roller 37 is placed in the mounting groove 34. A hydraulic rod 35 and a fixed sleeve 36 are also fixedly installed on the support shaft seat 33. Figure 5 The fixed sleeve 36 shown includes an arc block 2 362 and an arc block 1 361. The arc block 2 362 is fixedly connected to the support shaft seat 33, and the arc block 1 361 is fixedly connected to the output end of the hydraulic rod 35. Two guide holes 363 are symmetrically provided on the arc block 1 361. Two guide rods 364 are fixedly installed on the side of the arc block 2 362 close to the arc block 1 361. The arc block 2 362 is axially connected to the arc block 1 361 through the guide holes 363 and the guide rods 364, and the grinding roller 37 is rotatably installed in the circular hole between the arc block 1 361 and the arc block 2 362.

[0029] To further explain, Figure 2 The grinding assembly 3 shown in the figure also includes two mounting frames 31 fixedly connected to the frame 50, a rotating column 32 is rotatably installed between the two mounting frames 31, a support shaft seat 33 and the rotating column 32 are fixedly connected, a motor 38 is fixedly installed on one side of one of the mounting frames 31, and the output shaft of the motor 38 is fixedly connected to the rotating column 32; the motor 38 outputs power torque.

[0030] To further explain, Figure 4As shown, a hinge rod 47 is fixedly installed at the same end of the rotating column 2 42 and the rotating column 3 43. The ends of the two hinge rods 47 that are close to each other are hinged to the same hinge block 48. An L-shaped rod 49 is fixedly installed on the side of the mounting frame 2 41 close to the hinge block 48. The motor 2 410 is fixedly installed on the L-shaped rod 49. The output shaft of the motor 2 410 and the hinge block 48 are fixedly connected together; two waist-shaped holes are symmetrically provided on the hinge block 48, and a guide shaft is provided at the end of the hinge rod 47, and the guide shaft is inserted into the waist-shaped hole.

[0031] To further explain, during the grinding process, the steel strip 6 flows downward along the upper surface of the frame into the grinding chamber 1 and is pressed tightly by the grinding rollers 37, generating tension and deformation. The tension and deformation on the steel strip 6 cause rust and scale on the surface of the steel strip 6 to crack and partially fall off or loosen. The grinding rollers 37 then further grind the surface of the steel strip 6. A blower can be installed next to the grinding rollers 37 to blow away the debris.

[0032] To further explain, when the grinding roller 37 needs to be replaced due to the deterioration of the grinding quality due to wear, the main machine is shut down to stop the movement of the strip steel; first, the hinge block 48 is driven to rotate counterclockwise by the motor 2 410. Due to the length of the waist-shaped hole of the hinge block 48, the hinge block 48 can only rotate to a certain angle, and the hinge rod 47 connected to the hinge block 48 drives the rotating column 2 42 and the rotating column 3 43 to rotate counterclockwise at the same time. The support plate 1 44 and the support plate 2 45 also tilt counterclockwise accordingly. The new grinding roller 37 to be replaced is stored on the support plate 1 44, and the limit plate sets the support plate 1 44 and the support plate 2 The grinding roller 37 on the plate 2 45 is restricted from falling into the grinding chamber 1; then the motor 1 38 is used to make the rotating column 1 32 rotate clockwise to the top of the support plate 2 45, and then the hydraulic rod 35 is retracted. The grinding roller 37 falls onto the support plate 2 45 along the gap of the installation groove due to its own gravity; at this time, the worker can place the new grinding roller 37 in the installation groove by driving or manpower according to the size of the new grinding roller 37, and after the hydraulic rod 35 extends forward to press the axis of the grinding roller 37, the motor 1 38 is rotated to make the rotating column 1 32 rotate counterclockwise to the grinding position, the main machine is started, and the strip steel moves to start the grinding work.

[0033] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs a structure and embodiment similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A roller changing mechanism for strip surface treatment, comprising a frame (50), a grinding chamber (1) for grinding the strip provided on the frame (50), and characterized in that: Two pairs of guide rollers (2) for guiding the strip are provided on the machine frame (50) on both sides of the grinding chamber (1), and each pair of guide rollers (2) is symmetrically distributed up and down and forms a plate passage in the middle. At least two grinding assemblies (3) are provided in the grinding chamber (1), and a material changing assembly (4) is fixedly installed on the top of each grinding assembly (3). The grinding assembly (3) includes a pair of support shaft seats (33) movably connected to the machine frame (50), and a grinding roller (37) is detachably connected to the support shaft seat (33); the material changing assembly (4) has a new roller bearing seat and an old roller bearing seat. When the support shaft seat (33) rotates to the roller changing position, the grinding roller (37) is removed and detached from the support shaft seat (33) to the old roller bearing seat, and the new roller bearing seat is The new grinding roller on the carrier is transferred to the support shaft seat (33); a hydraulic rod (35) and a fixed sleeve (36) are fixedly installed on the support shaft seat (33); the fixed sleeve (36) includes an arc block 2 (362) fixedly connected to the support shaft seat (33); an arc block 1 (361) is movably installed on the arc block 2 (362); the arc block 1 (361) and the output end of the hydraulic rod (35) are fixedly connected together; the grinding roller (37) is rotatably installed between the arc block 1 (361) and the arc block 2 (362); a mounting groove (34) is opened on the support shaft seat (33); the grinding roller (37) is assembled in the mounting groove (34); the material changing assembly (4) includes a frame ( 50) above the rotating column 2 (42) and the rotating column 3 (43), the rotating column 2 (42) and the rotating column 3 (43) are arranged at intervals in the upper and lower parts, the rotating column 2 (42) is fixedly mounted with a plurality of support plates 1 (44) arranged perpendicular thereto, the rotating column 2 (42) and the support plate 1 (44) constitute a new roller bearing seat; the rotating column 3 (43) is fixedly mounted with a plurality of support plates 2 (45) arranged perpendicular thereto, the rotating column 3 (43) and the support plate 2 (45) together constitute an old roller bearing seat; the material changing assembly (4) also includes two mounting frames 2 (41), the respective ends of the rotating column 2 (42) and the rotating column 3 (43) are rotatably connected to the corresponding mounting frame 2 (41), the mounting frame 2 (41) Two vertical rods (46) are fixedly installed at the bottom end, and the bottom ends of the two vertical rods (46) are fixedly connected to the frame (50); limit plates are fixedly installed on both sides of the top of the support plate 1 (44) and the support plate 2 (45) to prevent the grinding roller (37) from rolling down; the ends of the rotating column 2 (42) and the rotating column 3 (43) close to each other are fixedly installed with a hinge rod (47), and the ends of the two hinge rods (47) close to each other are hinged to the same hinge block (48); an L-shaped rod (49) is fixedly installed on the side of the mounting frame 2 (41) close to the hinge block (48), and a motor 2 (410) is fixedly installed on the L-shaped rod (49), and the output shaft of the motor 2 (410) is fixedly connected to the hinge block (48).

2. The roll changing mechanism for strip surface treatment according to claim 1, characterized in that: Two waist-shaped holes are symmetrically provided on the hinge block (48), and a guide shaft is provided at the end of the hinge rod (47), and the guide shaft is inserted into the waist-shaped hole.

3. The roll changing mechanism for strip surface treatment according to claim 1, characterized in that: The grinding assembly (3) further comprises two mounting frames (31) fixedly connected to the frame (50), a same rotating column (32) being rotatably mounted between the two mounting frames (31), a support shaft seat (33) and the rotating column (32) being fixedly connected together, a motor (38) being fixedly mounted on one side of one of the mounting frames (31), an output shaft of the motor (38) and the rotating column (32) being fixedly connected together; the motor (38) outputs power.

4. The roll changing mechanism for strip surface treatment according to claim 1, characterized in that: Two guide holes (363) are symmetrically provided on the arc block 1 (361), and two guide rods (364) are fixedly installed on one side of the arc block 2 (362) close to the arc block 1 (361).

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