Environment-friendly high-efficiency rust removal device for steel strip surface

Abstract

The application discloses an environment-friendly high-efficiency rust removal device for steel strip surface and belongs to the technical field of steel strip processing. The device comprises a base plate, a dust removal cylinder is arranged above the base plate, a dust removal mechanism is arranged in the lower side wall of the dust removal cylinder, rotating cylinders are rotatably connected to the inner walls of the two ends of the dust removal cylinder through first bearing rings, a mounting rack is fixedly connected to the rear side wall of the base plate, a bidirectional rotating mechanism is fixedly connected to the side wall of the mounting rack, the two ends of the bidirectional rotating mechanism are fixedly connected to the outer side walls of two rotating cylinders, and rust removal cylinder brush assemblies are arranged on the inner walls of the two rotating cylinders. The device is provided with two groups of conveying pinch rollers, driving motors, bidirectional rotating mechanisms, dust removal cylinders, rotating cylinders and rust removal cylinder brush assemblies, so that the functions of comprehensive polishing and rust removal processing and automatic conveying of the outer surface of the steel strip are realized, the rust removal processing quality of the steel strip is good, the efficiency is high, the dust removal mechanism is arranged to realize the dust removal function, and the device is more environmentally friendly.

Description

Technical Field

[0001] This invention relates to the field of steel bar processing technology, specifically to an environmentally friendly, high-efficiency rust removal device for steel bar surfaces. Background Technology

[0002] Hot-rolled round bar is a type of coiled steel bar. To improve its structural strength, it needs to be straightened, molded, and heat-treated. The existing steel bars are straightened into straight bars by a straightening machine and then sent to a molding machine for molding and finally heat-treated. Before molding and heat treatment, the surface needs to be derusted. The common method of derusting is to use grinding equipment to grind the surface of the steel bar.

[0003] In a Chinese patent for a steel bar surface grinding and polishing device (patent number: CN116252192A), the device includes a base, on which a grinding mechanism for grinding the steel bar is fixedly connected; the grinding mechanism includes a motor and a grinding wheel, and a rotating roller cooperating with the grinding wheel is rotatably connected to the base, with bearing seats connected to both ends of the rotating roller; a conveying mechanism for driving the steel bar forward is fixedly connected to the base, the conveying mechanism includes a connecting frame, a movable frame connected to the connecting frame, and multiple rotating frames rotatably connected to the movable frame along its length, with drive wheels rotatably connected to the rotating frames for driving the steel bar forward. The present invention features a conveying mechanism on the base, with multiple drive wheels obliquely positioned to the steel strip. When the drive wheels rotate, they apply an axial forward thrust to the steel strip, thereby moving the steel strip forward during the grinding process, increasing the convenience of steel strip grinding. However, when grinding and removing rust from the steel strip, the lack of positioning of the steel strip makes it easy for the steel strip to shift during the grinding process, making it difficult to achieve comprehensive grinding and rust removal of the circumference of the steel strip, affecting the processing quality. Furthermore, grinding and removing rust from the steel strip generates a large amount of rust dust, polluting the air environment in the workshop and endangering the health of the workers. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide an environmentally friendly, high-efficiency rust removal device for steel bars. By incorporating two sets of conveying rollers, a drive motor, a bidirectional rotating mechanism, a dust collector, a rotating cylinder, and a rust removal brush assembly, it achieves comprehensive grinding and rust removal of the outer surface of the steel bars, along with automatic conveying. This results in high-quality and efficient rust removal. It also solves the problem mentioned in the background art where the lack of positioning of the steel bars during grinding and rust removal causes them to easily shift during the grinding process, making it difficult to achieve comprehensive grinding and rust removal of the steel bar's circumference and affecting processing quality.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: The present invention provides an environmentally friendly high-efficiency rust removal device for steel bars, comprising: a base plate, a dust removal cylinder provided above the base plate, a dust removal mechanism connected to the lower side wall of the dust removal cylinder, rotating cylinders rotatably connected to the inner walls of both ends of the dust removal cylinder via first bearing rings, a mounting frame fixedly connected to the rear side wall of the base plate, a bidirectional rotating mechanism fixedly connected to the side wall of the mounting frame, the two ends of the bidirectional rotating mechanism being fixedly connected to the outer side walls of the two rotating cylinders respectively, rust removal cylinder brush assemblies installed on the inner walls of the two rotating cylinders, two symmetrically arranged spacing adjustment mechanisms fixedly connected to the upper side wall of the base plate at both ends of the rotating cylinders, two symmetrically arranged L-shaped plates fixedly connected to the two ends of the spacing adjustment mechanisms, a drive motor fixedly connected to the lower side wall of the two L-shaped plates, and a conveying clamping roller fixedly connected to the main shaft end of the drive motor through the L-shaped plate.

[0006] Preferably, the dust removal mechanism includes a dust suction hopper connected to the bottom of the dust removal cylinder, a dust collection box connected to the lower end of the dust suction hopper, negative pressure fans connected to both sides of the dust collection box, a dust filter screen fixedly connected to the inner wall of the dust collection box at the connection port with the negative pressure fans, and a cleaning door hinged to the front side wall of the dust collection box.

[0007] Preferably, the bidirectional rotation mechanism includes a housing fixed to the rear side wall of the mounting bracket. A servo motor is fixedly connected to the upper end of the housing. The main shaft of the servo motor passes through the housing and is fixedly connected to a first bevel gear. Rotating rods are inserted into and rotatably connected to both sides of the housing. A second bevel gear, meshing with the first bevel gear, is fixedly connected to the near end of each of the two rotating rods. A transmission wheel is fixedly connected to the far end of each of the two rotating rods. A transmission ring is fixedly connected to the outer side wall of each of the two rotating cylinders. The two transmission wheels are connected to the two transmission rings through a transmission drive.

[0008] Preferably, the outer wall of the rotating cylinder and the inner wall of the transmission ring are fixedly connected by welding.

[0009] Preferably, the rust removal brush assembly includes a cylindrical ring that matches the inner diameter of the rotating cylinder. An annular rust removal brush is fixedly connected to the inner wall of the cylindrical ring. Mounting cavities are provided on the opposite side walls of the cylindrical ring. A sliding plate is slidably connected inside the mounting cavity. A return spring is fixedly connected between the inner bottom wall of the mounting cavity and the sliding plate. A locking rod is fixedly connected to the end of the sliding plate away from the return spring. A locking hole is provided on the side wall of the rotating cylinder. One end of the locking rod passes through the cylindrical ring and is inserted into the locking hole.

[0010] Preferably, the spacing adjustment mechanism includes a rectangular strip shell fixed to the side wall of the base plate. A handwheel is inserted into and rotatably connected to the front end of the rectangular strip shell. One end of the handwheel passes through the rectangular strip shell and is fixedly connected to a two-way lead screw. Two symmetrically arranged nut blocks are threaded onto the two-way lead screw. Connecting blocks are fixedly connected to the upper side of each of the two nut blocks. A sliding opening is provided on the upper side wall of the rectangular strip shell. The two connecting blocks pass through the sliding opening and are fixedly connected to two L-shaped plates respectively.

[0011] Preferably, a support frame is fixedly connected to the upper side wall of the base plate, and a support ring is fixedly connected to the upper end of the support frame. The support ring is sleeved on the outer side of the rotating cylinder, and the inner wall of the support ring is rotatably connected to the outer side wall of the rotating cylinder through a second bearing ring.

[0012] Preferably, a PLC controller is fixedly connected to the upper side wall of the base plate, and the PLC controller is electrically connected to one end of the bidirectional rotating mechanism and the drive motor.

[0013] The beneficial effects of this invention are as follows:

[0014] In this invention, by setting up two sets of conveying rollers, drive motors, a bidirectional rotating mechanism, a dust collector, a rotating cylinder, and a rust-removing brush assembly, steel bars are passed through the two sets of conveying rollers, dust collector, rotating cylinder, and rust-removing brush assembly. The servo motor is started, driving the first bevel gear to rotate. Since the first bevel gear is meshed with two second bevel gears, the two rotating rods rotate in opposite directions, which in turn drives the two transmission wheels to rotate in opposite directions. Since the two transmission wheels are driven by two transmission rings, the two rotating cylinders rotate in opposite directions simultaneously, which in turn drives the two rust-removing brush assemblies to rotate in opposite directions. This allows for bidirectional and comprehensive grinding and rust removal of the passing steel bars, resulting in good rust removal quality. At the same time, starting the two drive motors of each set to rotate in opposite directions drives the two conveying rollers of each set to rotate in opposite directions, enabling automatic forward conveying of the steel bars and thus improving the efficiency of rust removal on the surface of the steel bars.

[0015] In this invention, by setting up a dust removal mechanism and starting two negative pressure fans to work simultaneously, a negative pressure is generated in the dust collection box. This causes the rust dust generated when the two rust removal brush assemblies remove rust from the steel bars to be sucked into the dust collection cylinder, and then guided into the dust collection box for centralized storage through the dust suction hopper. The dust filter can intercept the rust dust in the dust collection box, and the airflow is discharged outward, thus achieving the function of dust removal, ensuring the quality of the workshop environment, avoiding impact on the health of the staff, and being more environmentally friendly.

[0016] By setting up a spacing adjustment mechanism, rotating the handwheel will drive the bidirectional lead screw to rotate. At this time, the two nut blocks will move in opposite directions, thereby driving the L-shaped plate fixed to the connecting block to move. This allows for the adjustment of the spacing between the two conveying rollers, so as to clamp and position steel bars of different thicknesses for conveying, thus improving the applicability and making the operation simple. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the dust collector cylinder in this invention.

[0020] Figure 3 This is a frontal cross-sectional view of the dust collector cylinder in this invention.

[0021] Figure 4 In this invention Figure 3 A magnified structural diagram at point A.

[0022] Figure 5 This is a schematic diagram of the rear cross-sectional structure of the casing in this invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the rust removal brush assembly in this invention.

[0024] Figure 7 This is a three-dimensional cross-sectional view of the rectangular strip shell in this invention.

[0025] Explanation of reference numerals in the attached drawings: 1-Base plate, 2-Dust collector cylinder, 3-Rotating cylinder, 4-Mounting frame, 5-L-shaped plate, 6-Drive motor, 7-Conveyor clamping roller, 8-Dust suction hopper, 9-Dust collection box, 10-Negative pressure fan, 11-Dust filter screen, 12-Cleaning box door, 13-Machine housing, 14-Servo motor, 15-First bevel gear, 16-Rotating rod, 17-Second bevel gear, 18-Transmission wheel, 19-Transmission ring, 20-Transmission drive, 21-Cylinder ring, 22-Annular rust removal brush, 23-Mounting cavity, 24-Slide plate, 25-Reset spring, 26-Clamping rod, 27-Clamping hole, 28-Rectangular strip shell, 29-Handwheel rod, 30-Double-direction screw, 31-Nut block, 32-Connecting block, 33-Slide opening, 34-Support frame, 35-Support ring, 36-PLC controller. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0027] like Figures 1 to 6 As shown, this embodiment provides an environmentally friendly, high-efficiency rust removal device for steel bars, including: a base plate 1, a dust removal cylinder 2 above the base plate 1, a dust removal mechanism connected to the lower side wall of the dust removal cylinder 2, rotating cylinders 3 rotatably connected to the inner walls of both ends of the dust removal cylinder 2 via first bearing rings, a mounting frame 4 fixedly connected to the rear side wall of the base plate 1, a bidirectional rotating mechanism fixedly connected to the side wall of the mounting frame 4, the two ends of the bidirectional rotating mechanism being fixedly connected to the outer side walls of the two rotating cylinders 3 respectively, rust removal brush assemblies installed on the inner walls of the two rotating cylinders 3, two symmetrically arranged spacing adjustment mechanisms fixedly connected to the upper side wall of the base plate 1 at both ends of the rotating cylinders 3, two symmetrically arranged L-shaped plates 5 fixedly connected to the two ends of the spacing adjustment mechanisms, a drive motor 6 fixedly connected to the lower side wall of the two L-shaped plates 5, the main shaft end of the drive motor 6 passing through the L-shaped plate 5 and fixedly connected to a conveying clamping roller 7, the rust removal brush assembly and the conveying clamping roller 7 being located on the same horizontal line to ensure comprehensive rust removal processing during the straight conveying of steel bars.

[0028] The bidirectional rotation mechanism includes a housing 13 fixed to the rear side wall of the mounting bracket 4. A servo motor 14 is fixedly connected to the upper end of the housing 13. The main shaft of the servo motor 14 passes through the housing 13 and is fixedly connected to a first bevel gear 15. Rotating rods 16 are inserted and rotatably connected to both sides of the housing 13. A second bevel gear 17 meshing with the first bevel gear 15 is fixedly connected to the near end of the two rotating rods 16. A transmission wheel 18 is fixedly connected to the far end of the two rotating rods 16. A transmission ring 19 is fixedly connected to the outer side wall of the two rotating cylinders 3. The two transmission wheels 18 are connected to the two transmission rings 19 through a transmission drive 20.

[0029] The outer wall of the rotating cylinder 3 is fixedly connected to the inner wall of the transmission ring 19 by welding, and the connection is reliable.

[0030] The rust-removing brush assembly includes a cylindrical ring 21 that matches the inner diameter of the rotating cylinder 3. An annular rust-removing brush 22, made of steel wire, is fixedly connected to the inner wall of the cylindrical ring 21. Mounting cavities 23 are provided on opposite side walls of the cylindrical ring 21. A sliding plate 24 is slidably connected inside the mounting cavity 23. A return spring 25 is fixedly connected between the inner bottom wall of the mounting cavity 23 and the sliding plate 24. A locking rod 26 is fixedly connected to the end of the sliding plate 24 away from the return spring 25. A locking hole 27 is provided on the side wall of the rotating cylinder 3, and one end of the locking rod 26 passes through the cylindrical ring 21. 1. Inserted into the locking hole 27, when a new rust removal brush assembly needs to be replaced, press the locking rod 26 to retract into the mounting cavity 23. At this time, the sliding plate 24 will squeeze and contract the return spring 25 to generate elastic force. When the locking rod 26 is completely separated from the locking hole 27, the displacement of the cylinder ring 21 is no longer restricted, and the cylinder ring 21 can be separated from the rotating cylinder 3 to replace the new rust removal brush assembly. At this time, the elastic force of the return spring 25 will automatically push the locking rod 26 out and lock it into the locking hole 27 to realize the replacement of the rust removal brush assembly. The operation is simple.

[0031] A support frame 34 is fixedly connected to the upper side wall of the base plate 1. A support ring 35 is fixedly connected to the upper end of the support frame 34. The support ring 35 is sleeved on the outer side of the rotating cylinder 3. The inner wall of the support ring 35 is rotatably connected to the outer side wall of the rotating cylinder 3 through a second bearing ring, which can support the rotation of the rotating cylinder 3.

[0032] A PLC controller 36 is fixedly connected to the upper side wall of the base plate 1. The PLC controller 36 is electrically connected to one end of the bidirectional rotating mechanism and the drive motor 6. The servo motor 14 is electrically connected to the PLC controller 36 and is powered by an external power supply. The circuit involved is existing technology, so it will not be described in detail here.

[0033] The principle of this embodiment is as follows: When this device is used to remove rust from the surface of steel bars, the steel bars pass through two sets of conveyor rollers 7, dust removal cylinders 2, rotating cylinders 3, and rust removal brush assemblies. First, according to the thickness of the steel bars, the operating distance adjustment mechanism is used to clamp the steel bars with the two conveyor rollers 7 for positioning. The servo motor 14 is started, driving the first bevel gear 15 to rotate. Since the first bevel gear 15 is meshed with two second bevel gears 17, the two rotating rods 16 rotate in opposite directions, which in turn drives the two transmission wheels 18 to rotate in opposite directions. Since the two transmission wheels 18 are driven by the transmission drive 20 and the two transmission rings 19, the two rotating cylinders 3 rotate in opposite directions at the same time, which drives the two rust removal brush assemblies to rotate in opposite directions, performing bidirectional and comprehensive grinding and rust removal on the passing steel bars. The rust removal quality is good. At the same time, the two drive motors 6 of each group are started to rotate in opposite directions, driving the two conveyor rollers 7 of each group to rotate in opposite directions, which can realize automatic forward conveying of the steel bars, thereby improving the efficiency of rust removal on the surface of the steel bars. Example

[0034] like Figure 2 and Figure 3 As shown, in this embodiment, while retaining all the technical features of the specific embodiment one, the dust removal mechanism includes a dust suction hopper 8 connected to the bottom of the dust collection cylinder 2, a dust collection box 9 connected to the lower end of the dust suction hopper 8, negative pressure fans 10 connected to both sides of the dust collection box 9, a dust filter screen 11 fixedly connected to the inner wall of the dust collection box 9 at the connection port with the negative pressure fan 10, and a cleaning door 12 hinged to the front side wall of the dust collection box 9, through which rust dust is periodically removed.

[0035] The principle of this embodiment is as follows: When this device removes rust from steel bars, two negative pressure fans 10 are started simultaneously to create negative pressure in the dust collection box 9. This causes the rust dust generated by the two rust removal brush assemblies to be sucked into the dust collection cylinder 2, and then guided into the dust collection box 9 through the dust suction hopper 8 for centralized storage. The dust filter 11 can intercept the rust dust in the dust collection box 9, and the airflow is discharged outward, thus achieving the function of dust removal, ensuring the quality of the workshop environment, avoiding impact on the health of the staff, and being more environmentally friendly. Example

[0036] like Figure 7 As shown, while retaining all the technical features of specific embodiments one and / or two, in this embodiment: the spacing adjustment mechanism includes a rectangular strip shell 28 fixed to the upper side wall of the base plate 1. A handwheel rod 29 is inserted into and rotatably connected to the front end of the rectangular strip shell 28. One end of the handwheel rod 29 passes through the rectangular strip shell 28 and is fixedly connected to a bidirectional lead screw 30. Two symmetrically arranged nut blocks 31 are threaded onto the bidirectional lead screw 30. A connecting block 32 is fixedly connected to the upper side of each of the two nut blocks 31. A sliding opening 33 is opened on the upper side wall of the rectangular strip shell 28. The two connecting blocks 32 pass through the sliding opening 33 and are fixedly connected to the two L-shaped plates 5 respectively.

[0037] The principle of this embodiment is as follows: Rotating the handwheel lever 29 drives the bidirectional lead screw 30 to rotate. Since the bidirectional lead screw 30 is threadedly connected to the two nut blocks 31, the two nut blocks 31 are displaced in opposite directions, thereby driving the L-shaped plate 5 fixed to the connecting block 32 to move. This allows for adjustment of the distance between the two conveying clamping rollers 7, so as to clamp and position steel bars of different thicknesses for conveying, thus improving the applicability and simplifying the operation.

[0038] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An environmentally friendly, high-efficiency rust removal device for steel bars, characterized in that, include: A base plate (1) is provided with a dust removal cylinder (2) above it. The lower side wall of the dust removal cylinder (2) is connected to a dust removal mechanism. The inner walls of both ends of the dust removal cylinder (2) are rotatably connected to a rotating cylinder (3) through a first bearing ring. A mounting frame (4) is fixedly connected to the rear side wall of the base plate (1). A bidirectional rotating mechanism is fixedly connected to the side wall of the mounting frame (4). The two ends of the bidirectional rotating mechanism are respectively fixedly connected to the outer side walls of the two rotating cylinders (3). Rust removal cylinder brush assemblies are installed on the inner walls of the two rotating cylinders (3). Two symmetrically arranged spacing adjustment mechanisms are fixedly connected to the upper part of the base plate (1) at both ends of the rotating cylinders (3). The spacing adjustment mechanisms are connected to two L-shaped plates, which are symmetrically arranged. The lower parts of the two L-shaped plates (5) are fixedly connected to a drive. The drive motor (6) has its main shaft end passing through the L-shaped plate (5) and fixedly connected to a conveying clamping roller (7); the rust removal cylinder brush assembly includes a cylinder ring (21) matching the inner diameter of the rotating cylinder (3), an annular rust removal brush (22) fixedly connected to the inner wall of the cylinder ring (21), and mounting cavities (23) are opened on both opposite side walls of the cylinder ring (21). A sliding plate (24) is slidably connected inside the mounting cavity (23), and a return spring (25) is fixedly connected between the inner bottom wall of the mounting cavity (23) and the sliding plate (24). A locking rod (26) is fixedly connected to one end of the sliding plate (24) away from the return spring (25). A locking hole (27) is opened on the side wall of the rotating cylinder (3), and one end of the locking rod (26) passes through the cylinder ring (21) and is inserted into the locking hole (27); The spacing adjustment mechanism includes a rectangular strip shell (28) fixed on the upper part of the base plate (1). A handwheel rod (29) is inserted into and rotatably connected to the front end of the rectangular strip shell (28). One end of the handwheel rod (29) passes through the rectangular strip shell (28) and is fixedly connected to a two-way screw rod (30). Two symmetrically arranged nut blocks (31) are threaded on the two-way screw rod (30). Connecting blocks (32) are fixedly connected to the upper side of the two nut blocks (31). A sliding opening (33) is opened on the upper part of the rectangular strip shell (28). The two connecting blocks (32) pass through the sliding opening (33) and are fixedly connected to the two L-shaped plates (5) respectively.

2. The environmentally friendly high-efficiency rust removal device for steel bars as described in claim 1, characterized in that, The dust removal mechanism includes a dust collection hopper (8) connected to the bottom of the dust collection cylinder (2). The lower end of the dust collection hopper (8) is connected to a dust collection box (9). Both sides of the dust collection box (9) are connected to negative pressure fans (10). A dust filter screen (11) is fixedly connected to the inner wall of the dust collection box (9) at the connection port with the negative pressure fan (10). A cleaning door (12) is hinged to the front side wall of the dust collection box (9).

3. The environmentally friendly high-efficiency rust removal device for steel bars as described in claim 1, characterized in that, The bidirectional rotating mechanism includes a housing (13) fixed to the rear side wall of the mounting frame (4). A servo motor (14) is fixedly connected to the upper end of the housing (13). The main shaft of the servo motor (14) passes through the housing (13) and is fixedly connected to a first bevel gear (15). Rotating rods (16) are inserted and rotatably connected to both sides of the housing (13). A second bevel gear (17) meshing with the first bevel gear (15) is fixedly connected to the near end of the two rotating rods (16). A transmission wheel (18) is fixedly connected to the far end of the two rotating rods (16). A transmission ring (19) is fixedly connected to the outer side wall of the two rotating cylinders (3). The two transmission wheels (18) are connected to the two transmission rings (19) through a transmission belt (20).

4. The environmentally friendly high-efficiency rust removal device for steel bars as described in claim 3, characterized in that, The outer wall of the rotating cylinder (3) is fixedly connected to the inner wall of the transmission ring (19) by welding.

5. The environmentally friendly high-efficiency rust removal device for steel bars as described in claim 1, characterized in that, A support frame (34) is fixedly connected to the upper part of the base plate (1), and a support ring (35) is fixedly connected to the upper end of the support frame (34). The support ring (35) is sleeved on the outer side of the rotating cylinder (3), and the inner wall of the support ring (35) is rotatably connected to the outer wall of the rotating cylinder (3) through a second bearing ring.

6. The environmentally friendly high-efficiency rust removal device for steel bars as described in claim 1, characterized in that, A PLC controller (36) is fixedly connected to the upper side wall of the base plate (1), and the PLC controller (36) is electrically connected to the bidirectional rotating mechanism and the drive motor (6).

Images