A wire rod surface rust removal device

Abstract

The utility model relates to a kind of wire rod surface derusting device, belong to rust removal equipment technical field.This device includes fixed derusting roller (12) and lower pressing wheel roller (10) that are sequentially spaced, and the transverse center distance of adjacent two fixed derusting roller (12) and lower pressing wheel roller (10) along the direction of discharge gradually increases.This device is bent to wire rod, fixed derusting roller (12) and lower pressing wheel roller (10) directly contact with wire rod, and along the direction of discharge of wire rod, the transverse center distance between fixed derusting roller (12) and lower pressing wheel roller (10) gradually increases, this structure setting plays the role of gradually straightening to the wire rod after bending, and the winding of right side winding mechanism is facilitated.Solve the problem that existing equipment cannot be straightened simultaneously when rust removal alone, inconvenient for subsequent winding.

Description

Technical Field

[0001] This utility model relates to a rust removal device for wire rod surfaces, belonging to the technical field of rust removal equipment. Background Technology

[0002] Wire rod, also known as coiled wire, typically refers to small-diameter round steel bars coiled into coils. Rust removal is an essential pretreatment step before wire rod undergoes further processing (especially drawing into steel wire). Rust removal mainly removes the oxide layer and impurities adhering to its surface, preventing damage to the dies and wire rod surface during drawing and forming processes, thus ensuring processing accuracy. At the same time, a clean metal surface enhances the adhesion between the lubricating coating and the substrate, optimizes coating uniformity, and reduces the risks of subsequent processing.

[0003] Existing wire rod rust removal devices, such as the one disclosed in Chinese patent CN219925596U, essentially involve bending the wire rod to be rusted into a 60° angle by multiple fixed rust-removing rollers and a downward pressure roller. This bending action removes the oxide rust layer from the wire rod's surface. However, these devices can only remove rust and cannot simultaneously straighten the wire rod, causing inconvenience in subsequent winding operations. Utility Model Content

[0004] The technical problem to be solved by this utility model is that existing equipment cannot simultaneously straighten the rust when removing rust, which is inconvenient for subsequent winding.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a rust removal device for wire rod surface, including fixed rust removal rollers and pressure rollers arranged in sequence at intervals, wherein the transverse center distance between two adjacent fixed rust removal rollers and pressure rollers along the discharge direction increases sequentially.

[0006] In the above device, the lateral center distance a between adjacent fixed rust-removing rollers and pressure rollers along the discharge direction is 1.5D≤a≤2.0D, and the lateral center distance a between the two ends of subsequent adjacent fixed rust-removing rollers and pressure rollers increases cumulatively with the value of D, where D is the diameter of the wire rod.

[0007] In the above-mentioned device, the longitudinal center distance b between adjacent fixed rust removal rollers and lower pressure rollers is equal, and 0.5D≤b≤0.85D, where D is the diameter of the wire rod.

[0008] The aforementioned device also includes a support frame, a rust-removing roller seat, and a lower pressure roller seat. The support frame includes an upper support platform and a lower support platform. The rust-removing roller seats are arranged linearly at intervals along the length of the lower support platform. The lower pressure roller seats are arranged linearly at intervals below the upper support platform. The rust-removing roller and the lower pressure roller are respectively rotatably mounted on the rust-removing roller seat and the lower pressure roller seat.

[0009] Furthermore, the device also includes a drive assembly that can adjust the longitudinal distance between the pressure roller and the fixed rust removal roller.

[0010] Furthermore, the drive assembly in the above-mentioned device includes a drive motor and a screw jack. The drive motor can drive the lifting screw of the screw jack to move up and down, and the lower end of the lifting screw is connected to the upper end of the lower pressure roller seat of the lower pressure roller.

[0011] Furthermore, the device also includes a pad, and the drive assembly is mounted on the upper end of the upper support platform via the pad.

[0012] In the aforementioned device, the outer surfaces of the fixed rust-removing roller and the lower pressure roller are provided with limiting grooves along their circumference.

[0013] Furthermore, the cross-section of the limiting groove in the above-mentioned device is a V-shaped structure, a semi-circular structure, or an arc-shaped structure.

[0014] Furthermore, the rust-removing roller seat and the lower pressure roller seat in the above-mentioned device are U-shaped structures, and the fixed rust-removing roller and the lower pressure roller are respectively rotatably arranged in the openings of the rust-removing roller seat and the lower pressure roller seat.

[0015] The beneficial effects of this invention are as follows: This device removes rust from the surface of the wire rod by bending it at an angle between the upper and lower bends, thus improving the efficiency of rust removal. Simultaneously, it further limits the lateral center distance between adjacent fixed rust-removing rollers and the lower pressure roller to gradually increase along the discharge direction. This structure ensures that the lateral center distance between adjacent fixed rust-removing rollers and the lower pressure roller gradually increases during wire rod bending, thus gradually straightening the bent wire rod and facilitating downstream winding. Furthermore, after being put into actual production, the service life of the rust-removed wire rod can be extended to 3-5 times the original life, the surface is smoother after rust removal, and the selling price increases by 5%-15%. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the fixed rust removal roller and the lower pressure roller of this utility model from the left view projection structure.

[0018] Figure 3 This is a utility model Figure 2 A schematic diagram of another limiting groove structure.

[0019] Figure 4 This is a utility model Figure 2 A schematic diagram of the third type of limiting groove structure.

[0020] In the diagram: 1. Support frame; 2. Upper support platform; 3. Lower support platform; 4. Pad plate; 5. Screw jack; 6. Drive assembly; 7. Drive motor; 8. Lifting plate; 9. Lower pressure roller seat; 10. Lower pressure roller; 11. Rust removal roller seat; 12. Fixed rust removal roller; 13. Limiting groove. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figures 1 to 4 As shown, this utility model discloses a wire rod surface rust removal device, comprising fixed rust removal rollers 12 and pressure rollers 10 arranged sequentially at intervals, with the transverse center distance between adjacent fixed rust removal rollers 12 and pressure rollers 10 increasing sequentially along the discharge direction. Those skilled in the art will understand that the wire rod (unwound by an upstream unwinding mechanism and introduced into downstream related equipment (such as a rebar straightening machine)) passes through the gap between the fixed rust removal rollers 12 and pressure rollers 10 for downstream use. At this time, the pressure rollers 10 are driven downward by the drive assembly 6 (drive motor 7 controls the screw of the screw jack 5 to descend), bending the wire rod. Under the action of the upward and downward bending angle, the rust on the surface of the wire rod is peeled off and removed. The wire rod (typically 6-10mm in diameter) is fed in from the left and output from the right. During the movement of the wire rod to the right, it is squeezed and bent by the fixed rust removal rollers 12 and pressure rollers 10, completing the rust removal process (mechanical rust removal). Because the distance between the fixed rust-removing roller 12 and the lower pressure roller 10 near the wire rod inlet is small, the bending angle of the wire rod is large, resulting in better rust removal. Along the wire rod feeding direction, the distance between the fixed rust-removing roller 12 and the lower pressure roller 10 gradually increases, effectively removing rust from the bent wire rod and also assisting in straightening. Furthermore, the number of fixed rust-removing rollers 12 should be one more than the number of lower pressure rollers 10. Along the wire rod discharge direction, adjacent fixed rust-removing rollers 12 and lower pressure rollers 10 are grouped sequentially. This structure provides three sets of bending mechanisms. The sequentially increasing longitudinal center distance should be understood as follows: the transverse center distance of the first group of adjacent fixed rust-removing rollers 12 and lower pressure rollers 10 is less than that of the second group; similarly, the transverse center distance of the second group of adjacent fixed rust-removing rollers 12 and lower pressure rollers 10 is less than that of the third group of adjacent fixed rust-removing rollers 12 and lower pressure rollers 10.

[0023] Preferably, in the above-mentioned device, the lateral center distance 'a' between adjacent fixed rust-removing rollers 12 and pressing rollers 10 along the discharge direction is 1.5D ≤ a ≤ 2.0D, and the lateral center distance 'a' between the two endpoints of subsequent adjacent fixed rust-removing rollers 12 and pressing rollers 10 increases cumulatively with the value of D, where D is the diameter of the wire rod. Those skilled in the art will understand that because the distance between the fixed rust-removing rollers 12 and pressing rollers 10 near the wire rod inlet is small, the angle of bending the wire rod is large, resulting in better rust removal. Along the wire rod feeding direction, the distance between the fixed rust-removing rollers 12 and pressing rollers 10 gradually increases, which can remove rust from the bent wire rod and also assist in straightening and correcting it. Therefore, the number of extrusion and bending mechanisms can be appropriately increased according to requirements during actual installation. This structure provides three sets of bending mechanisms, and along the discharge direction of the wire rod, adjacent fixed rust-removing rollers 12 and lower pressure rollers 10 are arranged as a group. The transverse center distance a of the first group of fixed rust-removing rollers 12 and lower pressure rollers 10 is 1.5D≤a≤2.0D, and the transverse center distance a of the two endpoints of the subsequent adjacent fixed rust-removing rollers 12 and lower pressure rollers 10 increases with the value of D. That is, D is added to both endpoints of the range of transverse center distance a. That is, the transverse center distance a of the second group of fixed rust-removing rollers 12 and lower pressure rollers 10 is 2.5D≤a≤3.0D, and the transverse center distance a of the third group of fixed rust-removing rollers 12 and lower pressure rollers 10 is 3.5D≤a≤4.0D, and so on. Where D is the diameter of the wire rod.

[0024] Preferably, in the above-mentioned device, the longitudinal center distance b between adjacent fixed rust-removing rollers 12 and lower pressure rollers 10 is equal, and 0.5D≤b≤0.85D, where D is the diameter of the wire rod. Those skilled in the art will understand that in this device, adjacent fixed rust-removing rollers 12 and lower pressure rollers 10 are grouped sequentially along the wire rod discharge direction, and the longitudinal center distance here is also the longitudinal center distance of a group of adjacent fixed rust-removing rollers 12 and lower pressure rollers 10. This structure provides three sets of bending mechanisms, that is, the longitudinal center distance b between the three sets of adjacent fixed rust-removing rollers 12 and lower pressure rollers 10 is equal, and satisfies 0.5D≤b≤0.85D, where D is the diameter of the wire rod.

[0025] Preferably, the above-mentioned device further includes a support frame 1, a rust-removing roller seat 11, and a lower pressure roller seat 9. The support frame 1 includes an upper support platform 2 and a lower support platform 3. The rust-removing roller seats 11 are linearly spaced along the length direction of the lower support platform 3, and the lower pressure roller seats 9 are linearly spaced below along the length direction of the upper support platform 2. The fixed rust-removing roller 12 and the lower pressure roller 10 are respectively rotatably mounted on the rust-removing roller seat 11 and the lower pressure roller seat 9. Those skilled in the art will understand that, for ease of installation and positioning, this device preferably arranges the fixed rust-removing roller 12 and the lower pressure roller 10 at intervals on the upper support platform 2 and the lower support platform 3 of the support frame 1. The rust-removing roller seats 11 are linearly spaced along the length direction of the lower support platform 3, while the lower pressure roller seats 9 are linearly spaced below along the length direction of the upper support platform 2. Furthermore, the fixed rust-removing roller 12 and the lower pressure roller 10 should be on the same straight line in their longitudinal projection. The support frame 1 is mainly a support component, which can actually be assembled or welded from a steel structure frame.

[0026] Preferably, the above-mentioned device further includes a drive assembly 6, which can adjust the longitudinal distance between the lower pressure roller 10 and the fixed rust removal roller 12. Those skilled in the art will understand that, in order to adjust the longitudinal center distance between the fixed rust removal roller 12 and the lower pressure roller 10, and to adjust the pressure angle of the wire rod, this device preferably includes a drive assembly 6, which can drive the lower pressure roller 10 to move longitudinally, thereby adjusting the longitudinal distance between the lower pressure roller 10 and the fixed rust removal roller 12.

[0027] Preferably, the drive assembly 6 in the above-mentioned device includes a drive motor 7 and a screw jack 5. The drive motor 7 can drive the screw of the screw jack 5 to move up and down, and the lower end of the lifting screw is connected to the upper end of the lower pressure roller seat 9 of the lower pressure roller 10. Those skilled in the art will understand that, more preferably, the drive assembly 6 includes a drive motor 7 and a screw jack 5, and the drive motor 7 can drive the lifting screw of the screw jack 5 to move up and down. The screw jack 5 is existing technology, a device that converts the rotation of the drive motor 7 into the longitudinal up and down movement of the screw. The lower end of the lifting screw is connected to the upper end of the lower pressure roller seat 9 of the lower pressure roller 10. For ease of installation, a lifting plate 8 can be provided at the lower end of the lifting screw, and it can be fixed to the upper end of the lower pressure roller seat 9 by bolts.

[0028] Preferably, the above-described device further includes a pad 4, and the drive assembly 6 is mounted on the upper end of the upper support platform 2 via the pad 4. Those skilled in the art will understand that, for the purpose of rapid positioning and installation, this device preferably mounts the drive assembly 6 on the upper end of the upper support platform 2 via the pad 4. This structural arrangement allows for the replacement of pads 4 of different thicknesses when removing rust from wire rods of different diameters, thereby adaptively adjusting the distance between the upper and lower pressure rollers. Preferably, the pad 4 is fixed to the upper surface of the upper support platform 2 using bolts and nuts.

[0029] Preferably, the outer surfaces of the fixed rust-removing roller 12 and the lower pressure roller 10 in the above-mentioned device are provided with limiting grooves 13 along their circumference. Those skilled in the art will understand that this device serves to limit the bending of the wire rod during extrusion, preventing the wire rod from deviating from either side of the pressure roller. Therefore, it is practically preferred that the outer surfaces of the fixed rust-removing roller 12 and the lower pressure roller 10 are provided with limiting grooves 13 along their circumference. The limiting grooves 13 achieve the limiting of the wire rod, and also meet the extrusion bending requirements of wire rods of different diameters, thus enhancing its versatility.

[0030] Preferably, the cross-section of the limiting groove 13 in the above-mentioned device is a V-shaped structure, a semi-circular structure, or an arc-shaped structure. Those skilled in the art will understand that, for the sake of convenient wire rod positioning, it is actually preferred that the cross-section of the limiting groove 13 is a V-shaped structure, a semi-circular structure, or an arc-shaped structure. Considering the wear problem during the wire rod rust removal process, this device is actually preferably semi-arc or elliptical, which helps to increase its contact area with the wire rod and avoid damage to the wire rod.

[0031] Preferably, in the above-described device, the rust-removing roller seat 11 and the lower pressure roller seat 9 have a U-shaped structure, and the fixed rust-removing roller 12 and the lower pressure roller 10 are respectively rotatably disposed within the openings of the rust-removing roller seat 11 and the lower pressure roller seat 9. Those skilled in the art will understand that, to facilitate the installation of the fixed rust-removing roller 12 and the lower pressure roller 10, this device preferably has a U-shaped structure for the rust-removing roller seat 11 and the lower pressure roller seat 9, allowing the fixed rust-removing roller 12 and the lower pressure roller 10 to be directly mounted within the openings, and the rotatable connection between the fixed rust-removing roller 12 and the lower pressure roller 10 and the rust-removing roller seat 11 and the lower pressure roller seat 9 is achieved through a bearing assembly.

Claims

1. A rust removal device for wire rod surface, comprising a fixed rust removal roller (12) and a downward pressure roller (10) arranged sequentially at intervals, characterized in that: The transverse center distance between two adjacent fixed rust removal rollers (12) and the lower pressure rollers (10) along the discharge direction increases sequentially.

2. The rust removal device for wire rod surface according to claim 1, characterized in that: The transverse center distance a between adjacent fixed rust removal rollers (12) and pressure rollers (10) along the discharge direction is 1.5D≤a≤2.0D, and the transverse center distance a between the two ends of the subsequent adjacent fixed rust removal rollers (12) and pressure rollers (10) increases cumulatively with the value of D, where D is the diameter of the wire rod.

3. A rust removal device for wire rod surface according to claim 1 or 2, characterized in that: The longitudinal center distance b between adjacent fixed rust removal rollers (12) and pressure rollers (10) is equal, and 0.5D≤b≤0.85D, where D is the diameter of the wire rod.

4. The rust removal device for wire rod surface according to claim 1, characterized in that: It also includes a support frame (1), a rust removal roller seat (11), and a lower pressure roller seat (9). The support frame (1) includes an upper support platform (2) and a lower support platform (3). The rust removal roller seat (11) is arranged linearly at intervals along the length direction of the lower support platform (3). The lower pressure roller seat (9) is arranged linearly at intervals below along the length direction of the upper support platform (2). The fixed rust removal roller (12) and the lower pressure roller (10) are respectively rotatably mounted on the rust removal roller seat (11) and the lower pressure roller seat (9).

5. A rust removal device for wire rod surface according to claim 4, characterized in that: It also includes a drive assembly (6) that can adjust the longitudinal distance between the pressure roller (10) and the fixed rust removal roller (12).

6. The rust removal device for wire rod surface according to claim 5, characterized in that: The drive assembly (6) includes a drive motor (7) and a screw jack (5). The drive motor (7) can drive the lifting screw of the screw jack (5) to move up and down, and the lower end of the lifting screw is connected to the upper end of the lower pressure roller seat (9) of the lower pressure roller (10).

7. A rust removal device for wire rod surface according to claim 5, characterized in that: It also includes a pad (4), and the drive assembly (6) is mounted on the upper end of the upper support platform (2) via the pad (4).

8. The rust removal device for wire rod surface according to claim 1, characterized in that: The outer surfaces of the fixed rust removal roller (12) and the lower pressure roller (10) are provided with limiting grooves (13) along their circumference.

9. A rust removal device for wire rod surface according to claim 8, characterized in that: The cross-section of the limiting groove (13) is a V-shaped structure, a semi-circular structure, or an arc-shaped structure.

10. A rust removal device for wire rod surface according to claim 4, characterized in that: The rust removal roller seat (11) and the pressure roller seat (9) are U-shaped structures. The fixed rust removal roller (12) and the pressure roller (10) are respectively rotatably arranged in the openings of the rust removal roller seat (11) and the pressure roller seat (9).

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