Steel pipe surface rust and dust removal device

Abstract

The utility model discloses a steel pipe surface rust and dust removal device which comprises a grinding table, a feeding hopper is arranged on one side of the grinding table, a discharging hopper is arranged on the other side of the grinding table, a grinding motor is arranged on the grinding table, a polishing wheel is arranged at one end of a rotating shaft of the grinding motor, and a movable sliding table is arranged at the bottom of the grinding motor. A sliding rail is arranged below the movable sliding table; the steel pipe surface derusting and dedusting device has the advantages that steel pipes can be automatically conveyed and subjected to surface derusting and dedusting, the polishing wheels are in contact with the steel pipes and subjected to surface treatment, so that the surfaces of the steel pipes are smooth, the attractiveness is improved, meanwhile, follow-up galvanizing and paint spraying treatment are facilitated, and compared with a traditional derusting device, the derusting efficiency is high; the device is suitable for steel pipe surface rust removal and dust removal in batches.

Description

Technical Field

[0001] The utility model relates to the field of steel pipe production, in particular to a device for removing rust and dust on the surface of steel pipes. Background Technique

[0002] Steel pipes are tubular products made of steel and are widely used in fields such as construction, machinery, petroleum, natural gas, chemical industry, and electric power. There are various types of steel pipes, mainly divided into two categories: seamless steel pipes and welded steel pipes. Seamless steel pipes are made through hot rolling, cold rolling, or cold drawing processes and have no weld seams. They are usually used in occasions that require high strength and high pressure. Welded steel pipes are formed by curling steel plates or steel strips and then welding them. According to different welding processes, they can be further divided into straight seam welded pipes and spiral welded pipes. Steel pipes have excellent strength, corrosion resistance, and high temperature resistance, and are suitable for a variety of complex environments and harsh conditions.

[0003] Before the surface of the steel pipe is galvanized and painted, it is extremely easy to rust when in contact with air, which not only reduces the aesthetics, but also the durability and strength of the steel pipe structure. Before the steel pipe manufacturer enters the final surface treatment process after producing steel pipes, there will be some steel pipes stored. After a certain period of time, surface corrosion and dust falling are inevitable. When entering the surface treatment process (galvanizing or painting, etc.), the rust will affect the adhesion of galvanizing and painting, resulting in uneven or easily peeling coating or paint layer. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] The technical problem to be solved by the utility model is that before the surface of the steel pipe is subjected to surface treatment, it is extremely easy to rust, which reduces the aesthetics, and the durability and strength of the steel pipe structure are also reduced. After entering the surface treatment process (galvanizing or painting, etc.), the rust will affect the adhesion of galvanizing and painting, resulting in uneven or easily peeling coating or paint layer.

[0006] (II) Technical Solutions

[0007] To solve the above problems, the utility model provides the following technical solutions:

[0008] A steel pipe surface rust removal and dust removal device includes a grinding table. One side of the grinding table is provided with a feed hopper, and the other side is provided with a discharge hopper. A grinding motor is arranged on the grinding table. One end of the rotating shaft of the grinding motor is provided with a polishing wheel. The bottom of the grinding motor is provided with a moving slide, and a slide rail is arranged below the moving slide. One end of the grinding table close to the feed hopper is provided with a feeding frame assembly. The feeding frame assembly includes a feeding frame, upper conveying rollers and lower conveying rollers. One side of the feeding frame is provided with a conveying motor, and the rotating shaft of the conveying motor penetrates through the feeding frame and is fixedly connected with the lower conveying rollers. A limiting frame is arranged above the upper conveying rollers. A lifting lead screw is arranged above the feeding frame, and one end of the lifting lead screw penetrates through the feeding frame and is fixedly connected with the limiting frame.

[0009] Further, inclined plates are arranged in the feed hopper and the discharge hopper. A steel pipe channel is arranged at the bottom of the feed hopper, and a propulsion cylinder is arranged at one end of the steel pipe channel.

[0010] Further, extension plates are arranged on both sides of the grinding table, and second cylinders are arranged on the extension plates. The telescopic rods of the second cylinders are fixedly connected with the moving slide.

[0011] Further, a feeding frame assembly is also arranged at one end of the grinding table close to the discharge hopper. A roller assembly is arranged between the feeding frame assemblies. The roller assembly includes rollers and roller frames.

[0012] Further, a hand wheel is arranged at one end of the lifting lead screw, and a threaded hole is arranged at the top of the feeding frame.

[0013] Further, bearings are arranged in the limiting frame. Both ends of the upper conveying rollers are connected with the limiting frame through bearings, and bearings are also arranged in the feeding frame.

[0014] (III) Beneficial effects

[0015] The beneficial effects of the present utility model are as follows:

[0016] It can automatically convey steel pipes and perform surface rust removal and dust removal. The polishing wheel is used to contact the steel pipes for surface treatment, making the surface of the steel pipes smooth and improving the aesthetic degree. At the same time, it is convenient for subsequent galvanizing and painting treatments. Compared with the traditional rust removal method, the efficiency is high, and it is suitable for batch rust removal and dust removal of steel pipes. Description of the drawings

[0017] Figure 1 is a three-dimensional view of the present utility model;

[0018] Figure 2 Another three-dimensional view of the present utility model from a different angle;

[0019] Figure 3 is a schematic structural diagram of the feeding frame assembly;

[0020] Markings in the figure: 1 - Grinding table, 2 - Feeding hopper, 3 - Discharging hopper, 4 - Grinding motor, 5 - Polishing wheel, 6 - Feeding rack assembly, 7 - Conveying motor, 8 - Propelling cylinder, 9 - Extension plate, 10 - Roller assembly, 11 - Handwheel, 2a - Steel pipe channel, 4a - Moving slide, 4b - Slide rail, 6a - Feeding rack, 6b - Upper conveying roller, 6c - Lower conveying roller, 6d - Limiting frame, 6e - Lifting screw rod, 9a - Second cylinder, 10a - Roller, 10b - Roller frame. Specific embodiments

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0023] Please refer to Figures 1-3 A rust and dust removal device for the surface of a steel pipe as shown, which includes a grinding table 1. A feeding hopper 2 is provided on one side of the grinding table 1, a discharging hopper 3 is provided on the other side of the grinding table 1. A grinding motor 4 is provided on the grinding table 1. One end of the rotating shaft of the grinding motor 4 is provided with a polishing wheel 5. A moving slide 4a is provided at the bottom of the grinding motor 4, and a slide rail 4b is provided below the moving slide 4a. A feeding rack assembly 6 is provided at one end of the grinding table 1 close to the feeding hopper 2. The feeding rack assembly 6 includes a feeding rack 6a, an upper conveying roller 6b and a lower conveying roller 6c. A conveying motor 7 is provided on one side of the feeding rack 6a. The rotating shaft of the conveying motor 7 penetrates through the feeding rack 6a and is fixedly connected to the lower conveying roller 6c. A limiting frame 6d is provided above the upper conveying roller 6b, and a lifting screw rod 6e is provided above the feeding rack 6a. One end of the lifting screw rod 6e penetrates through the feeding rack 6a and is fixedly connected to the limiting frame 6d.

[0024] An inclined plate is provided in the feed hopper 2 and the discharge hopper 3. A steel pipe channel 2a is provided at the bottom of the feed hopper 2. One end of the steel pipe channel 2a is provided with a propulsion cylinder 8. This device is only applicable to circular steel pipes. When the steel pipe needs to be surface rust-removed, the steel pipe is placed into the feed hopper 2. The steel pipe rolls along the slope of the feed hopper 2 and enters the steel pipe channel 2a, and is pushed into the feeding frame assembly 6 by starting the propulsion cylinder 8, so that one end of the steel pipe moves above the lower conveying roller 6c. Then, the handwheel 11 is shaken to drive the lifting screw rod 6e to rotate and descend, and drive the limit frame 6d to descend. The limit frame 6d drives the upper conveying roller 6b to approach the lower conveying roller 6c. When it is placed on the surface of the steel pipe, the shaking of the handwheel 11 is stopped. At this time, the upper conveying roller 6b and the lower conveying roller 6c limit the steel pipe, but there is a certain space between the upper conveying roller 6b and the surface of the steel pipe to facilitate the rotation of the steel pipe. When the steel pipe passes through the idler roller assembly 10 and is transferred to the feeding frame assembly 6 at one end of the discharge hopper 3, the upper conveying roller 6b is adjusted in the same way to limit and clamp the steel pipe.

[0025] Extension plates 9 are provided on both sides of the grinding table 1. A second cylinder 9a is provided on the extension plate 9. The telescopic rod of the second cylinder 9a is fixedly connected to the moving slide 4a. The extension plate 9 is used to fix the second cylinder 9a. The telescopic rod of the second cylinder 9a is connected to the moving slide 4a and provides movement for it. The slide rail 4b is in a groove shape, and the moving slide 4a is in a plate shape and can move back and forth bidirectionally in the groove of the slide rail 4b. The moving slide 4a carries the grinding motor 4 to move. There are two grinding motors 4 placed side by side and rotating in the same direction. When the steel pipe passes through the idler roller assembly 10 and enters between the two grinding motors 4, the second cylinder 9a is used to drive the grinding motor 4 and the polishing wheel 5 to contact the steel pipe. The two grinding motors 4 rotate in the same direction. While the steel pipe is limited by the feeding frame assembly 6, the grinding motor 4 grinds and polishes the surface of the steel pipe to remove rust and surface dust. Under the clamping of the two grinding motors 4, the steel pipe will be driven by the polishing wheel 5 to rotate during the grinding process to achieve the surface polishing of the steel pipe.

[0026] A feeding frame assembly 6 is also provided at one end of the grinding table 1 close to the discharge hopper 3. An idler roller assembly 10 is provided between the feeding frame assemblies 6. The idler roller assembly 10 includes an idler roller 10a and an idler roller frame 10b. The two feeding frame assemblies 6 support, limit and guide the steel pipe. After the steel pipe is ground, it is guided into the discharge hopper 3 for storage through the feeding frame assembly 6 at the other end, and the idler roller assembly 10 supports the steel pipe.

[0027] One end of the lifting screw rod 6e is provided with a handwheel 11. A threaded hole is provided at the top of the feeding frame 6a. The surface of the lifting screw rod 6e is provided with threads. It is threadedly connected to the feeding frame 6a and is rotated by the handwheel 11 to drive the limit frame 6d to rise or fall.

[0028] The feeding rack 6a is provided with bearings. Both ends of the upper conveying roller 6b are connected to the limiting rack 6a through bearings. The limiting rack 6a is also provided with bearings. Both ends of the upper conveying roller 6b are provided with short shafts, and the short shafts are inserted into the bearings of the limiting rack 6a. Through the bearings, the upper conveying roller 6b can rotate to cooperate with the lower conveying roller 6c to move the steel pipe. The lower conveying roller 6c is also provided with short shafts at both ends. One end is connected to the conveying motor 7 to provide rotation, and the other end is connected to the bearing in the feeding rack 6a to rotate. The bearing in the feeding rack 6a is embedded in the inner wall of the feeding rack 6a.

[0029] The specific working principle is as follows: This device is only applicable to circular steel pipes. Place the circular steel pipe in the feeding hopper 1, and it enters the steel pipe channel 2a along the slope of the feeding hopper 1, and is pushed into the feeding rack assembly 6 by the pushing cylinder 8 for adjustment and limiting and clamping. Then, the second cylinder 9a drives the grinding motor 4 and the polishing wheel 5 to a suitable distance to contact the surface of the steel pipe, and then the conveying motor 7 and the grinding motor 4 are started to remove rust and dust from the surface of the steel pipe. After being guided by the feeding rack assembly 6 at the other end, it enters the discharging hopper 3.

[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0031] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for removing rust and dust from the surface of a steel pipe, characterized in that: It includes a grinding table (1). One side of the grinding table (1) is provided with a feed hopper (2), and the other side of the grinding table (1) is provided with a discharge hopper (3). A grinding motor (4) is arranged on the grinding table (1). One end of the rotating shaft of the grinding motor (4) is provided with a polishing wheel (5). A moving slide (4a) is arranged at the bottom of the grinding motor (4), and a slide rail (4b) is arranged below the moving slide (4a). A feeding frame assembly (6) is arranged at one end of the grinding table (1) close to the feed hopper (2). The feeding frame assembly (6) includes a feeding frame (6a), upper conveying rollers (6b) and lower conveying rollers (6c). A conveying motor (7) is arranged on one side of the feeding frame (6a). The rotating shaft of the conveying motor (7) penetrates through the feeding frame (6a) and is fixedly connected with the lower conveying rollers (6c). A limiting frame (6d) is arranged above the upper conveying rollers (6b). A lifting lead screw (6e) is arranged above the feeding frame (6a). One end of the lifting lead screw (6e) penetrates through the feeding frame (6a) and is fixedly connected with the limiting frame (6d).

2. The surface rust removal and dust removal device for steel pipes according to claim 1, wherein: There is an inclined plate in the feed hopper (2) and the discharge hopper (3). A steel pipe channel (2a) is arranged at the bottom of the feed hopper (2), and a propulsion cylinder (8) is arranged at one end of the steel pipe channel (2a).

3. A steel pipe surface rust and dust removal device according to claim 1, characterized in that: Extension plates (9) are arranged on both sides of the grinding table (1), and a second cylinder (9a) is arranged on the extension plates (9). The telescopic rod of the second cylinder (9a) is fixedly connected with the moving slide (4a).

4. A steel pipe surface rust and dust removal device according to claim 1, characterized in that: A feeding frame assembly (6) is also arranged at one end of the grinding table (1) close to the discharge hopper (3). A roller assembly (10) is arranged between the feeding frame assemblies (6). The roller assembly (10) includes rollers (10a) and roller frames (10b).

5. The surface rust removal and dust removal device for steel pipes according to claim 1, wherein: A handwheel (11) is arranged at one end of the lifting lead screw (6e), and a threaded hole is arranged at the top of the feeding frame (6a).

6. The surface rust removal and dust removal device for steel pipes according to claim 1, characterized in that: Bearings are arranged in the limiting frame (6d). Both ends of the upper conveying rollers (6b) are connected to the feeding frame (6a) through bearings, and bearings are also arranged in the feeding frame (6a).

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