Roller quick change device for cold-rolled stainless steel strip

Abstract

The utility model relates to rolling mill technical field discloses a kind of cold-rolled stainless steel strip's roll quick replacement device, including workbench and fixed guiding mechanism, clamping mechanism and linear driver on it, the workbench upper end is provided with guide rail, and guide rail is connected with slider, guiding mechanism is symmetrically arranged in the radial movement of roll both sides for constraining roll, clamping mechanism is fixedly arranged on slider for from both sides clamping the roll and constraint its rotation, the trajectory of slider is located the symmetry plane of both sides clamping mechanism, and linear driver is used to push roll and push it into rolling mill.This utility model is simple to operate, can effectively fix it in the process of roll replacement, avoid roll to produce rotation or displacement in moving process, so that roll can only move radially in the process of replacement, thereby protect roll surface, and improve the replacement efficiency of roll.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill technology, specifically to a quick roll changer for cold-rolled stainless steel strip. Background Technology

[0002] Cold rolling rolls are key components on cold rolling mills used to roll metal strips to the required thickness and width, directly affecting the surface quality of the metal strip, including surface finish and texture. During the cold rolling process, cold rolling rolls wear down continuously. As the service life increases, when the wear of the rolls reaches a certain level, they need to be replaced or re-grinded to ensure the quality of the strip products.

[0003] Rolls are classified into various types according to their structure and function. In the same rolling mill, there are drive rolls and driven rolls. In cold rolling mills, there are even multiple stands, each stand containing a set of rolls. The rolls with different functions have different sizes. The clamping mechanism of the existing roll changing device cannot change with the curvature of the roll body. During the process of clamping different roll bodies, a gap is generated between the clamping block and the roll body, and the roll will be displaced during the changing process. Utility Model Content

[0004] The purpose of this invention is to provide a quick roll replacement device for cold-rolled stainless steel strip, so as to solve the problem that rolls of different models are not securely fixed during the roll replacement process, and displacement occurs during the replacement process, resulting in scratches on the roll body.

[0005] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution: a quick roll changing device for cold-rolled stainless steel strip, comprising: The workbench is used to place the roll body; The guiding mechanism includes two roller supports symmetrically arranged on both sides of the worktable, and a roller rotatably connected to each roller support. The roller has an hourglass-shaped cross-section. The two rollers clamp the roll body from both sides, thereby constraining the radial movement of the roll body. The second slider is linearly slidably connected to the worktable, and the movement trajectory of the second slider is located on the plane of symmetry of the two rollers; A clamping mechanism, disposed on the second slider, is used to clamp the roll body from both sides and constrain its rotation; A linear driver is used to push the roll body or the clamping mechanism to move along the sliding direction of the second slider, thereby pushing the roll body into the mill.

[0006] Furthermore, the roller is wide at both ends and narrow in the middle, with smooth curves on both sides.

[0007] Furthermore, the rollers are arranged symmetrically on both sides of the roll body in an inverted V-shape.

[0008] Furthermore, the guiding mechanism also includes two first sliders symmetrically arranged about the axis of the roll body. The bottom of the first slider is provided with a first guide rail, the first slider is slidably connected to the first guide rail, and the roller support is fixedly connected to the first slider.

[0009] Furthermore, the first guide rail is provided with mounting plates with guide holes at both ends, and a horizontally arranged first push rod is fixedly connected to the side of the first slider away from the roll body. The first push rod is slidably connected to the guide hole, and a spring is provided between the first push rod and the mounting plate. One end of the spring is fixedly connected to the first push rod, and the other end is fixedly connected to the mounting plate, so that the first slider can automatically reset when it is not subjected to horizontal force.

[0010] Furthermore, the bottom of the second slider has a guide rail groove, and the top of the worktable is fixedly connected to a second guide rail. Two sets of the second guide rail are symmetrically arranged on both sides of the second slider, and the second guide rail is slidably connected to the guide rail groove.

[0011] Furthermore, the clamping mechanism includes: Two cylinders are provided and symmetrically arranged at both ends of the second slider. The extension direction of the cylinders is perpendicular to the movement direction of the second slider in the horizontal plane, and the extension direction of both cylinders is towards the roll body. The clamping block is fixedly connected to the top of the cylinder, and the bottom of the clamping block has an arc-shaped design.

[0012] Furthermore, the clamping block is made of rubber.

[0013] Furthermore, the linear driver includes: A horizontally placed hydraulic push rod, the frame portion of which is fixedly connected to the worktable; The second push rod is used to contact one end of the roll body to push the roll body to move; The third slider is fixedly connected to the actuator of the hydraulic push rod and the second push rod; A U-shaped frame is slidably connected to the third slider and the worktable, such that the sliding direction of the third slider is parallel to the axis of the roll body.

[0014] Furthermore, a hydraulic lifting device is fixedly connected to the bottom of the workbench, a base is fixedly connected to the lower end of the hydraulic lifting device, and casters are fixedly connected to the lower end of the base.

[0015] The embodiments of this utility model have the following beneficial effects: In this embodiment of the invention, after the roll body is clamped by the clamping mechanism, the hydraulic push rod of the linear drive is fixedly connected to a horizontal push rod to push the roll body along the guide mechanism into the mill. During this process, both the clamping mechanism and the guide mechanism can adaptively adjust their width to fit the roll according to different specifications. Furthermore, the roll is always in rolling contact with the rollers of the guide mechanism during the pushing process, and the roll is subjected to less friction, thereby effectively protecting the roll and improving the installation efficiency of the roll. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the workbench structure according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the guide mechanism structure according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the clamping mechanism structure according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the linear driver structure according to an embodiment of the present invention; The labels in the diagram represent the following: 1-Roll body; 2-Worktable; 3-Guide mechanism; 4-Second slider; 5-Clamping mechanism; 6-Linear driver; 7-Guide rail groove; 8-Hydraulic lifting device; 9-Base; 10-Universal wheel; 201 - Guide hole; 202 - Second guide rail; 301-First slider; 302-First guide rail; 303-Roller support; 304-Roller; 305-First push rod; 306-Spring; 501 - Cylinder; 502 - Clamping block; 601-Hydraulic push rod; 602-Third slider; 603-U-shaped frame; 604-Third guide rail; 605-Second push rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Cold rolling rolls are key components on cold rolling mills used to roll metal strips to the required thickness and width. During the cold rolling process, they undergo continuous wear, and as usage time increases, they need to be replaced when the wear reaches a certain level. Installing and replacing rolls is time-consuming and labor-intensive, often requiring multiple operators working together, resulting in low efficiency and a high risk of damage during the replacement process.

[0020] Reference Figure 1 A quick roll changer for cold-rolled stainless steel strip includes: Workbench 2 is used to place the roll body 1; The guiding mechanism 3 includes two roller supports 303 symmetrically arranged on both sides of the worktable 2, and a roller 304 rotatably connected to each roller support 303. The roller 304 has an hourglass-shaped cross section. The two rollers 304 clamp the roll body 1 from both sides, thereby constraining the radial movement of the roll body 1. The second slider 4 is linearly slidably connected to the worktable 2, and the movement trajectory of the second slider 4 is located on the symmetrical plane of the two rollers 304; A clamping mechanism 5 is provided on the second slider 4 and is used to clamp the roll body 1 from both sides and constrain its rotation. The linear driver 6 is used to push the roll body 1 or the clamping mechanism 5 along the sliding direction of the second slider 4, thereby pushing the roll body 1 into the rolling mill.

[0021] Furthermore, the roller 304 is wide at both ends and narrow in the middle, with smooth curves on both sides.

[0022] Furthermore, the rollers 304 are arranged symmetrically on both sides of the roll body 1 in an inverted V-shape.

[0023] The advantage of this design is that when the roll needs to be pushed into the mill, the rollers 304 on both sides form an arc-shaped support with the opening facing upwards. The roll contacts the smooth side of the roller 304. During the movement of the roll, the roller 304 also rotates at the same time. There is rolling friction between the roll and the roller 304, and the surface of the roll is subjected to a small frictional force. This can effectively protect the smoothness of the roll surface during replacement.

[0024] Furthermore, the guiding mechanism 3 also includes two first sliders 301 symmetrically arranged about the axis of the roll body 1. The bottom of the first slider 301 is provided with a first guide rail 302. The first slider 301 is slidably connected to the first guide rail 302. The roller support 303 is fixedly connected to the first slider 301.

[0025] The purpose of this design is to give the roller support 303 a degree of freedom in the radial direction perpendicular to the roll body 1, so that the distance between the two roller supports 303 can be adjusted to match the diameter of the corresponding roll body 1.

[0026] Furthermore, the first guide rail 302 is provided with mounting plates having guide holes 201 at both ends. The first slider 301 is fixedly connected to a horizontally arranged first push rod 305 on the side away from the roll body 1. The first push rod 305 is slidably connected to the guide hole 201. A spring 306 is provided between the first push rod 305 and the mounting plate. One end of the spring 306 is fixedly connected to the first push rod 305, and the other end is fixedly connected to the mounting plate, so that the first slider 301 can automatically reset when it is not subjected to horizontal force.

[0027] The principle of this design is that when rolls of different specifications are placed on the side curved surface of the roller 304, the roll body 1 presses down along the side of the roller 304, and the roller 304 is subjected to a horizontal pushing force in one direction toward both sides of the roll body 1. The roller 304 drives the first slider 301 to slide along the first guide rail 302 in the guide groove 201. The first slider 301 pushes the first push rod 305 to squeeze the spring 306. When the roll body 1 falls to a certain position, the spring 306 squeezes the first slider 301 to clamp the roll body 1. When the roll body 1 is pushed into the rolling mill, the force on the roller 304 disappears, and the first slider 301 returns to its original position under the elastic force of the spring 306.

[0028] The advantage of this design is that the guide mechanism 3 can adaptively adjust the distance between the two rollers 304 according to different specifications of the roller body 1, so that roller bodies 1 of different specifications can be clamped by the guide mechanism 3, and at the same time, the first slider 301 can automatically reset when there is no roller body 1.

[0029] Furthermore, the bottom of the second slider 4 has a guide rail groove 7, and the top of the worktable 2 is fixedly connected to a second guide rail 202. Two sets of the second guide rail 202 are provided and symmetrically arranged on both sides of the second slider 4. The second guide rail 202 is slidably connected to the guide rail groove 7.

[0030] The purpose of this design is that the second slider 4 can slide horizontally along the second guide rail 202 on the top surface of the worktable 2, thereby driving the clamping mechanism 5 to clamp the roll body 1 and move it along the radial direction of the roll body 1.

[0031] Furthermore, the clamping mechanism 5 includes: Two cylinders 501 are provided and symmetrically arranged at both ends of the second slider 4. The extension direction of the cylinders 501 is perpendicular to the movement direction of the second slider 4 in the horizontal plane, and the extension direction of both cylinders 501 is towards the roll body 1. The clamping block 502 is fixedly connected to the top of the cylinder 501, and the bottom of the clamping block 502 is designed with an arc shape.

[0032] The purpose of this design is to clamp the roll bodies 1 of different specifications by means of the telescopic movement of the cylinder 501, which can effectively reduce the risk of the roll bodies 1 tipping over or slipping during the replacement process.

[0033] Furthermore, the clamping block 502 is made of rubber.

[0034] The purpose of this design is that when the clamping block 502 clamps the roll body 1, the clamping block 502 can deform to a certain extent and generate the maximum contact area with the roll body 1, so as to prevent the roll body 1 from rotating during the movement.

[0035] Furthermore, the linear driver 6 includes: A horizontally placed hydraulic push rod 601, the frame portion of which is fixedly connected to the worktable 2; The second push rod 605 is used to contact one end of the roll body 1 to push the roll body 1 to move; The third slider 602 is fixedly connected to the actuator of the hydraulic push rod 601 and the second push rod 605; The U-shaped frame 603 slidably connects the third slider 602 and the worktable 2, such that the sliding direction of the third slider 602 is parallel to the axis of the roll body 1.

[0036] The purpose of this design is that the U-shaped frame guides the horizontal reciprocating movement of the third slider 502, while restricting the rotation of the third slider 502 around the hydraulic push rod 501, and counteracting the bending moment experienced by the hydraulic push rod 501 during extension and retraction, thus preventing oil leakage from the hydraulic push rod 501.

[0037] Furthermore, a hydraulic lifting device 8 is fixedly connected to the bottom of the workbench 2, a base 9 is fixedly connected to the lower end of the hydraulic lifting device 8, and casters 10 are fixedly connected to the lower end of the base 9.

[0038] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered as falling within the scope of protection of this utility model.

Claims

1. A quick roll changing device for cold-rolled stainless steel strip, characterized in that: include: Workbench (2) is used to place the roll body (1); The guiding mechanism (3) includes two roller supports (303) symmetrically arranged on both sides of the worktable (2), and a roller (304) rotatably connected to each roller support (303). The roller (304) has an hourglass-shaped cross section. The two rollers (304) clamp the roll body (1) from both sides, thereby constraining the radial movement of the roll body (1). The second slider (4) is linearly slidably connected to the worktable (2), and the movement trajectory of the second slider (4) is located on the symmetrical plane of the two rollers (304); A clamping mechanism (5) is provided on the second slider (4) for clamping the roll body (1) from both sides and constraining its rotation; A linear driver (6) is used to push the roll body (1) or the clamping mechanism (5) along the sliding direction of the second slider (4) to push the roll body (1) into the mill.

2. The quick roll changing device for cold-rolled stainless steel strip according to claim 1, characterized in that: The roller (304) is wide at both ends and narrow in the middle, with smooth curves on both sides.

3. The quick roll changing device for cold-rolled stainless steel strip according to claim 2, characterized in that: The rollers (304) are arranged symmetrically on both sides of the roll body (1) in an inverted V shape.

4. The quick roll changing device for cold-rolled stainless steel strip according to claim 1, characterized in that: The guiding mechanism (3) further includes two first sliders (301) symmetrically arranged with respect to the axis of the roll body (1). The bottom of the first slider (301) is provided with a first guide rail (302). The first slider (301) is slidably connected to the first guide rail (302). The roller support (303) is fixedly connected to the first slider (301).

5. The quick roll changing device for cold-rolled stainless steel strip according to claim 4, characterized in that: The first guide rail (302) has mounting plates with guide holes (201) at both ends. The first slider (301) is fixedly connected to a horizontally arranged first push rod (305) on the side away from the roll body (1). The first push rod (305) is slidably connected to the guide hole (201). A spring (306) is provided between the first push rod (305) and the mounting plate. One end of the spring (306) is fixedly connected to the first push rod (305), and the other end is fixedly connected to the mounting plate, so that the first slider (301) can reset itself when it is not subjected to horizontal force.

6. The quick roll changing device for cold-rolled stainless steel strip according to claim 1, characterized in that: The bottom of the second slider (4) has a guide rail groove (7), and the top of the worktable (2) is fixedly connected to a second guide rail (202). The second guide rail (202) is provided in two sets and symmetrically arranged on both sides of the second slider (4). The second guide rail (202) is slidably connected to the guide rail groove (7).

7. The quick roll changing device for cold-rolled stainless steel strip according to claim 1, characterized in that: The clamping mechanism (5) includes: Two cylinders (501) are provided and symmetrically arranged at both ends of the second slider (4). The extension direction of the cylinders (501) is perpendicular to the movement direction of the second slider (4) in the horizontal plane, and the extension direction of both cylinders (501) is towards the roll body (1). The clamping block (502) is fixedly connected to the top of the cylinder (501), and the bottom of the clamping block (502) is designed with an arc shape.

8. The quick roll changing device for cold-rolled stainless steel strip according to claim 7, characterized in that: The clamping block (502) is made of rubber.

9. The quick roll changing device for cold-rolled stainless steel strip according to claim 1, characterized in that: The linear driver (6) includes: A horizontally placed hydraulic push rod (601), the frame part of which is fixedly connected to the worktable (2); The second push rod (605) is used to contact one end of the roll body (1) to push the roll body (1) to move; The third slider (602) is fixedly connected to the actuator of the hydraulic push rod (601) and the second push rod (605). The U-shaped frame (603) slidably connects the third slider (602) and the worktable (2) so that the sliding direction of the third slider (602) is parallel to the axis of the roll body (1).

10. A quick roll changing device for cold-rolled stainless steel strip according to claim 1, characterized in that: The bottom of the workbench (2) is fixedly connected to a hydraulic lifting device (8), the lower end of the hydraulic lifting device (8) is fixedly connected to a base (9), and the lower end of the base (9) is fixedly connected to a caster wheel (10).

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