Surface treatment device for metal strip

Abstract

The utility model relates to the field of strip polishing technology, concretely is a kind of surface treatment device for metal strip, including rack, symmetrically install the feeding roller group and discharge roller group for conveying strip on the rack, two groups of polishing components for polishing the two sides of strip are equipped between the feeding roller group with the discharge roller group;By setting polishing component, fling mechanism and drive component, utilize the movement of polishing band perpendicular to the conveying direction of strip, and cross superposition is formed with the conveying direction of strip itself, constructs mesh compound polishing texture, makes strip surface texture distribution more uniform, simultaneously, metal scrap produced in polishing flies out perpendicular to the conveying direction of strip under the action of polishing force, reduces the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the influence of the

Description

Technical Field

[0001] This utility model relates to the field of strip grinding technology, and in particular to a surface treatment device for metal strips. Background Technology

[0002] Grinding and polishing is a common process for surface treatment of metal strips. Grinding rollers come into contact with both sides of the conveyed strip and abrasives are used to remove surface defects (such as scratches and burrs) to improve the smoothness of the strip surface.

[0003] A copper-aluminum composite strip surface treatment device disclosed in Chinese Patent Publication No. CN223012686U, through the coordinated use of a mounting frame, a moving frame, an annular sleeve, a grinding roller, bolts, a base plate, a slide groove, and a fixing rod, allows the moving frame and grinding roller to be pulled towards one side of the mounting frame after the fixed limit of the moving frame is released. This facilitates the disassembly and replacement of the grinding roller. However, compared with copper-aluminum composite strip surface treatment devices and existing technologies in related fields, traditional metal strip surface grinding equipment mostly uses grinding rollers parallel to the conveying direction to grind both sides of the strip. Its unidirectional grinding path is consistent with the conveying path, resulting in a single grinding path and uniform surface roughness due to the uniform direction of the strip surface texture. At the same time, during the grinding process, metal debris not only remains on the strip surface, affecting the cleanliness of the strip surface, but also easily adheres to the surface of the grinding roller, repeatedly contacting the strip with the grinding movement, causing secondary scratches and reducing the grinding quality of the strip surface. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a surface treatment device for metal strips.

[0005] The objective of this utility model is achieved through the following technical solution: a surface treatment device for metal strip, comprising a frame, on which feed rollers and discharge rollers for conveying strip are symmetrically mounted. Between the feed rollers and discharge rollers, there are two sets of grinding components for grinding both sides of the strip. Each set of grinding components has a swivel mechanism inside for causing the external adhering material to fall off. Each set of grinding components has a drive component on its exterior. The drive component controls the grinding component and the swivel mechanism to rotate synchronously, and the grinding component and the swivel mechanism rotate in opposite directions. The frame is provided with two sets of adjusting components for adjusting the distance between the two sets of grinding components. A dust collection mechanism for absorbing metal debris is fixedly installed on the frame corresponding to the positions of the two sets of grinding components.

[0006] Preferably, the grinding assembly includes a grinding frame movably disposed inside the frame, a first support roller, a second support roller, and a hollow roller are rotatably mounted inside the grinding frame, a grinding belt is sleeved on the outer side of the first support roller, the second support roller, and the hollow roller, and a support plate for pressing against the grinding belt is fixed inside the grinding frame.

[0007] Preferably, the swinging mechanism includes a central shaft rotatably mounted inside the hollow roller, a swinging rope fixedly disposed at the middle position of the central shaft located in the hollow roller, and a swinging block fixedly disposed at the end of the swinging rope away from the central shaft.

[0008] Preferably, the drive assembly includes a drive member, a first bevel gear, a second bevel gear, and a third bevel gear. The drive member is fixed to the outside of the grinding frame, the third bevel gear is fixed to the output end of the drive member, the first bevel gear is fixed to the end of the hollow roller, the second bevel gear is fixed to the end of the central shaft, and the third bevel gear meshes with the first and second bevel gears on both sides of its tooth surfaces to achieve power output in opposite directions.

[0009] Preferably, the grinding frame has a triangular frame structure with one side parallel to the strip, and the second support roller and the hollow roller are respectively installed at the two corners of the grinding frame near the strip.

[0010] Preferably, the outer surface of the hollow roller is provided with a limiting groove for limiting the position of the grinding belt.

[0011] Preferably, the adjustment assembly includes an electric push rod fixed to the frame, the extended end of the electric push rod is fixedly provided with a mounting bracket, the mounting bracket is fixedly provided with multiple guide posts that slide in cooperation with the frame, and the grinding frame is fixed to the mounting bracket.

[0012] Preferably, the grinding frame is provided with a dust cover for protecting the drive assembly.

[0013] The beneficial effects of this surface treatment device for metal strip are as follows: By setting up a grinding component, a swishing mechanism, and a drive component, the movement of the grinding belt perpendicular to the strip's conveying direction forms a cross-over superposition with the strip's own conveying direction, constructing a mesh-like composite grinding texture. This breaks the limitation of the traditional single-path grinding, making the surface texture distribution of the strip more uniform and avoiding local roughness differences caused by unidirectional textures, thus significantly improving the surface treatment accuracy. At the same time, the metal chips generated by grinding fly out perpendicular to the strip's conveying direction under the action of grinding force, away from the strip surface, reducing the impact of chip residue on surface cleanliness. In addition, the swishing mechanism rotates synchronously in the opposite direction to the grinding component, shaking off the chips attached to the grinding belt through centrifugal impact vibration, avoiding repeated contact of chips with the strip during the grinding movement, effectively eliminating the risk of secondary scratches, and ensuring the grinding quality of the strip surface. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the initial state of the two grinding components of this utility model;

[0017] Figure 3 This is a schematic diagram showing the working state of the two grinding components of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the drive component of this utility model;

[0019] Figure 5 This utility model Figure 4 A magnified schematic diagram of the local structure at point A;

[0020] Figure 6 This is a schematic diagram of the structure of the grinding component of this utility model;

[0021] Figure 7 This is a schematic diagram of the swinging mechanism of this utility model.

[0022] In the diagram: 1. Frame; 2. Feed roller assembly; 3. Discharge roller assembly; 4. Dust collection mechanism; 5. Adjustment component; 51. Electric push rod; 52. Mounting frame; 53. Guide column; 6. Grinding component; 61. Grinding frame; 62. First support roller; 63. Second support roller; 64. Hollow roller; 65. Support plate; 66. Grinding belt; 7. Swinging mechanism; 71. Central shaft; 72. Swinging rope; 73. Swinging block; 8. Drive component; 81. First bevel gear; 82. Second bevel gear; 83. Third bevel gear; 84. Drive component; 9. Limiting groove; 10. Dust cover. Detailed Implementation

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, in part of which will be obvious from the description or may be learned by practice of the invention.

[0025] like Figures 1 to 7As shown, a surface treatment device for metal strip includes a frame 1. A feed roller group 2 and a discharge roller group 3 for conveying the strip are symmetrically mounted on the frame 1. Two sets of grinding components 6 for grinding both sides of the strip are provided between the feed roller group 2 and the discharge roller group 3. Each grinding component 6 has an internal swinging mechanism 7 for removing external deposits. A drive component 8 is installed externally on each grinding component 6 to control the synchronous rotation of the grinding component 6 and the swinging mechanism 7, with the grinding component 6 and the swinging mechanism 7 rotating in opposite directions. Two sets of adjusting components 5 are provided on the frame 1 to adjust the distance between the two sets of grinding components 6. A dust collection mechanism 4 for absorbing metal debris is fixedly installed on the frame 1 corresponding to the positions of the two sets of grinding components 6. The metal strip is introduced from inside the feed roller group 2 and drawn out from inside the discharge roller group 3, passing through the two sets of grinding components during the process. Between points 6 and 6, the drive component 8 controls the operation of the grinding component 6, and the two sets of adjustment components 5 control the two sets of grinding components 6 to fit against both sides of the strip, grinding the surface of the strip perpendicular to the conveying direction. The metal chips generated by grinding fly out perpendicular to the conveying direction of the strip under the action of grinding force, and are collected by the dust collection mechanism 4 (using a negative pressure dust collector) under negative pressure. In addition, the strip will rub against the grinding component 6 during the conveying process, forming a grinding path along the conveying direction. The grinding path of the grinding component 6 itself perpendicular to the conveying direction of the strip can form a mesh-like composite grinding pattern, which helps to improve the grinding effect. At the same time, the swinging mechanism 7 is controlled by the drive component 8 to rotate in the opposite direction to the grinding component 6, which can generate a vibration effect, thereby shaking off the metal chips attached to the grinding belt 66, preventing them from following the grinding and contacting the strip, scratching the surface of the strip, and affecting the grinding quality.

[0026] like Figure 1 , Figure 4 and Figure 6As shown, the grinding assembly 6 includes a grinding frame 61 movably disposed inside the frame 1. A first support roller 62, a second support roller 63, and a hollow roller 64 are rotatably mounted inside the grinding frame 61. The grinding frame 61 has a triangular frame structure with one side parallel to the strip. The second support roller 63 and the hollow roller 64 are respectively installed at the two corners of the grinding frame 61 near the strip. A grinding belt 66 is sleeved on the outer side of the first support roller 62, the second support roller 63, and the hollow roller 64. A limiting groove 9 is formed on the outer surface of the hollow roller 64 to limit the position of the grinding belt 66. A support plate 65 for pressing against the grinding belt 66 is fixed inside the grinding frame 61. A dust cover 10 for protecting the drive assembly 8 is fixed on the outer side of the grinding frame 61. The grinding frame 61 has a triangular structure, with the first support roller 62, the second support roller 63, and the hollow roller 64 respectively installed at the three vertices of the triangle. The grinding belt 66 is tensioned after being pressed by the support plate 65, forming a stable grinding working surface. When the hollow roller 64 is driven to rotate, it will drive the grinding belt 66 to circulate around the outside of the first support roller 62, the second support roller 63 and the hollow roller 64. The abrasive on the outer surface of the grinding belt 66 grinds the surface of the passing metal strip perpendicular to the conveying direction. The metal chips generated by grinding fly out perpendicular to the conveying direction of the strip under the action of the grinding force, avoiding them from remaining on the surface of the strip and affecting the surface cleanliness of the strip. At the same time, the strip will rub against the grinding belt 66 during the conveying process to form a grinding path along the conveying direction. The grinding path of the grinding belt 66 itself perpendicular to the conveying direction of the strip can be superimposed to form a mesh-like composite grinding pattern, which helps to improve the grinding effect. The limiting groove 9 on the outer surface of the hollow roller 64 can prevent the grinding belt 66 from deviating during high-speed movement and ensure the stability of the grinding path.

[0027] like Figure 6 and Figure 7 As shown, the swinging mechanism 7 includes a central shaft 71 rotatably installed inside the hollow roller 64. A swinging rope 72 is fixedly installed at the middle position of the central shaft 71 and a swinging block 73 is fixedly installed at the end of the swinging rope 72 away from the central shaft 71. When the central shaft 71 rotates, the swinging rope 72 and the swinging block 73 fixed on it are thrown outward under the action of centrifugal force. Since the mass of the swinging block 73 is concentrated, it will generate periodic centrifugal impact force when rotating at high speed, which is transmitted to the inner wall of the hollow roller 64 through the central shaft 71, forming high-frequency micro-vibration.

[0028] like Figures 4 to 7As shown, the drive assembly 8 includes a drive member 84, a first bevel gear 81, a second bevel gear 82, and a third bevel gear 83. The drive member 84 is fixed to the outside of the grinding frame 61, the third bevel gear 83 is fixed to the output end of the drive member 84, the first bevel gear 81 is fixed to the end of the hollow roller 64, the second bevel gear 82 is fixed to the end of the central shaft 71, and the third bevel gear 83 meshes with the first bevel gear 81 and the second bevel gear 82 on both sides of its tooth surfaces to achieve power output in opposite directions. When the drive member 84 (such as a motor) operates, The third bevel gear 83 rotates synchronously, driving the first bevel gear 81 and the second bevel gear 82 to rotate in opposite directions through gear meshing. This controls the hollow roller 64 to rotate in opposite directions with the central shaft 71. When the hollow roller 64 drives the grinding belt 66 to rotate in the forward direction, the central shaft 71 drives the swing block 73 in the reverse direction to generate a reverse centrifugal force. The reverse motion of the two forms a dynamic shear force field, making it easier for metal chips attached to the grinding belt 66 to detach. At the same time, the reverse rotation causes the impact frequency of the swing block 73 to interfere with the movement of the grinding belt 66, significantly improving the chip dissipation effect.

[0029] like Figures 1 to 3 As shown, the adjustment assembly 5 includes an electric push rod 51 fixed on the frame 1. The extended end of the electric push rod 51 is fixedly provided with a mounting bracket 52. Multiple guide posts 53 that slide in cooperation with the frame 1 are fixed on the mounting bracket 52. The grinding frame 61 is fixed on the mounting bracket 52. When the electric push rod 51 extends or retracts, the grinding frame 61 is driven to slide up and down along the guide posts 53 through the mounting bracket 52 (the guide posts 53 slide in cooperation with the frame 1 to ensure motion stability). During grinding, the two sets of adjustment assemblies 5 control the upper and lower grinding frames 61 respectively, and adjust the contact pressure between the grinding belt 66 and the surface of the strip according to the thickness of the metal strip, so that the grinding belt 66 is in close contact with both sides of the strip, ensuring that the grinding effect of strips of different thicknesses is uniform.

[0030] The work process is as follows:

[0031] S1: As Figure 1 As shown, the metal strip is introduced by the feed roller group 2, guided into the space between the two grinding belts 66, and then led out by the discharge roller group 3, forming a stable conveying path.

[0032] S2: As Figures 1 to 3 As shown, the electric push rod 51 drives the grinding frame 61 to rise and fall along the guide post 53 through the mounting bracket 52, so that the two grinding belts 66 respectively adhere to the upper and lower surfaces of the strip. The adhesion pressure is adjusted according to the thickness of the strip to ensure that the grinding belts 66 are in close contact.

[0033] S3: As Figures 4 to 7As shown, the drive unit 84 drives the third bevel gear 83 to rotate. Through the meshing first bevel gear 81 and second bevel gear 82, the hollow roller 64 and the central shaft 71 are driven to rotate synchronously in opposite directions. The hollow roller 64 acts as the active roller, driving the grinding belt 66 to circulate around the triangular path formed by the first support roller 62, the second support roller 63 and the hollow roller 64, grinding the surface perpendicular to the belt conveying direction. At the same time, the central shaft 71 drives the swing rope 72 and the swing block 73 to rotate in opposite directions, generating centrifugal impact vibration.

[0034] S4: As Figure 1 and Figure 3 As shown, during the grinding process, the conveying of the strip forms a grinding path along the conveying direction, which is superimposed with the vertical movement path of the grinding belt 66 to form a mesh composite grinding pattern, thereby improving the uniformity of surface roughness. The debris generated during grinding flies out perpendicular to the conveying direction under the action of centrifugal force and is collected by the dust collection mechanism 4 under negative pressure.

[0035] S5: As Figure 6 and Figure 7 As shown, the reverse rotation of the swing block 73 causes the swing block 73 to impact the inner wall of the hollow roller 64 through centrifugal force, generating high-frequency micro-vibration, which shakes off the debris attached to the grinding belt 66, thus preventing the debris from scratching the surface of the belt.

[0036] S6: As Figure 1 As shown, the polished strip is discharged through the discharge roller group 3, and the dust collection mechanism 4 continuously collects debris under negative pressure, realizing continuous automated polishing and cleaning, and ensuring the working environment and the surface quality of the strip.

[0037] The feed roller assembly 2, discharge roller assembly 3, dust collection mechanism 4, and electric push rod 51 are known technologies in this application, therefore their specific structures and working principles are not described in detail.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A surface treatment apparatus for metal strip, characterized in that: The system includes a frame (1), on which a feed roller group (2) and a discharge roller group (3) for conveying strip are symmetrically mounted. Between the feed roller group (2) and the discharge roller group (3), there are two sets of grinding components (6) for grinding both sides of the strip. Each grinding component (6) has a swinging mechanism (7) inside to cause the external attachments to fall off. Each grinding component (6) has a drive component (8) outside. The drive component (8) is used to control the grinding component (6) and the swinging mechanism (7) to rotate synchronously, and the grinding component (6) and the swinging mechanism (7) rotate in opposite directions. The frame (1) has two sets of adjusting components (5) for adjusting the distance between the two sets of grinding components (6). The frame (1) is fixedly mounted with a dust collection mechanism (4) for absorbing metal chips at the positions corresponding to the two sets of grinding components (6).

2. The surface treatment apparatus for metal strip according to claim 1, characterized in that: The grinding assembly (6) includes a grinding frame (61) movably disposed inside the frame (1). A first support roller (62), a second support roller (63), and a hollow roller (64) are rotatably mounted inside the grinding frame (61). A grinding belt (66) is sleeved on the outer side of the first support roller (62), the second support roller (63), and the hollow roller (64). A support plate (65) for pressing against the grinding belt (66) is fixed inside the grinding frame (61).

3. The surface treatment apparatus for metal strip according to claim 2, characterized in that: The swinging mechanism (7) includes a central shaft (71) rotatably mounted inside the hollow roller (64), a swinging rope (72) fixedly provided at the middle position of the central shaft (71) and a swinging block (73) fixedly provided at one end of the swinging rope (72) away from the central shaft (71).

4. The surface treatment apparatus for metal strip according to claim 3, characterized in that: The drive assembly (8) includes a drive member (84), a first bevel gear (81), a second bevel gear (82), and a third bevel gear (83). The drive member (84) is fixed to the outside of the grinding frame (61), and the third bevel gear (83) is fixed to the output end of the drive member (84). The first bevel gear (81) is fixed to the end of the hollow roller (64), and the second bevel gear (82) is fixed to the end of the central shaft (71). The third bevel gear (83) meshes with the first bevel gear (81) and the second bevel gear (82) on both sides of its tooth surface, respectively, to achieve power output in opposite directions.

5. The surface treatment apparatus for metal strip according to claim 2, characterized in that: The grinding frame (61) has a triangular frame structure with one side parallel to the strip. The second support roller (63) and the hollow roller (64) are respectively installed on the two corners of the grinding frame (61) near the strip.

6. The surface treatment apparatus for metal strip according to claim 2, characterized in that: The outer surface of the hollow roller (64) is provided with a limiting groove (9) for limiting the position of the grinding belt (66).

7. The surface treatment apparatus for metal strip according to claim 2, characterized in that: The adjustment assembly (5) includes an electric push rod (51) fixed on the frame (1), and a mounting bracket (52) is fixedly provided on the extended end of the electric push rod (51). Multiple guide posts (53) that slide with the frame (1) are fixedly provided on the mounting bracket (52), and the grinding frame is fixed on the mounting bracket (52).

8. The surface treatment apparatus for metal strip according to claim 2, characterized in that: The grinding frame (61) is fixedly provided with a dust cover (10) for protecting the drive assembly (8).

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