Scraper for removing rust on surface of metal product

Abstract

The utility model is applicable to the technical field of metal derusting equipment, and provides a scraper for derusting the surface of a metal product, which comprises a flat plate, a telescopic mechanism arranged at the upper end of the flat plate, blocks fixedly mounted at four corners of the bottom of the flat plate, rotating shafts rotatably mounted between the two blocks on the same side, and scrapers fixedly mounted on the rotating shafts. The scrapers on the two sides are symmetrically distributed, two symmetrically-distributed first supports are fixedly installed at the bottom of the flat plate, elastic pieces are fixedly connected to the first supports, the flat plate is driven by the electric telescopic rod to move, the distance between the flat plate and the surface of the metal product can be adjusted, and therefore the inclination angle of the scrapers is adjusted. The scraper with the adjustable inclination angle can easily adapt to various surface shapes of metal products, and rust removal operation can be rapidly and effectively carried out without frequently replacing tools or adjusting the position of a workpiece. And the rust removal continuity is improved, and the rust removal efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of metal rust removal equipment, and in particular relates to a scraper for removing rust from the surface of metal products. Background Technology

[0002] Rust removal from metal products is an important step in maintaining metal quality and extending its service life. Rust scrapers are commonly used tools in rust removal operations. The scraper is mounted on a rust removal machine, which moves the scraper across the metal surface to scrape or grind away rust.

[0003] Chinese patent discloses a deck rust removal machine (publication number CN219273812U) including a trolley, a rotary rust removal assembly, and a drive mechanism. The rotary rust removal assembly is mounted on the trolley and includes a wheel, multiple rust removal blades, and multiple springs. The wheel is located at the bottom of the trolley and can pivot around its own axis, which extends vertically. Multiple rust removal blades are circumferentially spaced on the wheel and each blade can float vertically. Multiple springs correspond one-to-one with multiple rust removal blades, and each spring is located between a corresponding blade and the wheel to provide a vertical elastic force so that the blade can float elastically vertically.

[0004] However, existing scrapers have a fixed angle, which cannot adapt to metal surfaces of different shapes, leading to frequent adjustments to the workpiece position during rust removal. Furthermore, a fixed angle may result in incomplete rust removal in some areas while over-scraping occurs in others. An improper angle may prevent effective contact with the rust layer, while excessive scraping may scratch the metal surface, reducing structural strength or accelerating corrosion.

[0005] To solve the above problems, it is necessary to design a scraper for removing rust from the surface of metal products. Utility Model Content

[0006] This invention provides a scraper for removing rust from the surface of metal products, aiming to solve the problem of fixed scraper angles in current applications.

[0007] This utility model is implemented as follows: a scraper for removing rust from the surface of metal products includes a flat plate, the upper end of which is provided with a telescopic mechanism, which is connected to the flat plate and is used to drive the flat plate to move in the vertical direction.

[0008] At each of the four corners of the bottom of the plate, a block is fixedly installed. A rotating shaft is rotatably installed between two blocks on the same side. A scraper is fixedly installed on each rotating shaft. The scrapers are symmetrically distributed on both sides. Two symmetrically distributed first supports are fixedly installed on the bottom of the plate. An elastic element is fixedly connected to each first support. The end of the elastic element is fixedly connected to the scraper. A magnet is fixedly installed on the scraper facing the side of the plate. Two symmetrically distributed second supports are fixedly installed on the bottom of the plate. An electromagnet is fixedly installed on each second support. The electromagnet is positioned facing the magnet.

[0009] Preferably, the scraper surface is provided with an alumina hard coating.

[0010] Preferably, the telescopic mechanism includes a mounting plate located at the upper end of the flat plate. The mounting plate has multiple mounting holes at both ends. The mounting plate is connected to an external rust removal machine by screws. Two spaced guide plates pass through the mounting plate. The lower ends of the guide plates are fixedly connected to the flat plate. A connecting plate is provided at the upper end of the mounting plate. The connecting plate is fixedly connected to the two guide plates.

[0011] Preferably, the telescopic mechanism further includes an electric telescopic rod, which is fixedly mounted on the mounting plate, and the output end of the electric telescopic rod is fixedly mounted on the flat plate.

[0012] Preferably, each of the rotating shafts has an internal cavity, and the block on one side has a liquid inlet hole, one end of which extends into the internal cavity.

[0013] Preferably, the diameter of the liquid inlet hole is smaller than the diameter of the inner cavity.

[0014] Preferably, the scraper has a plurality of equidistant inner holes, one end of which communicates with the inner cavity, and the other end of which penetrates the scraper and extends to the lower end of the scraper.

[0015] Preferably, a sealing plug is provided inside the liquid inlet hole.

[0016] Compared with related technologies, the scraper for rust removal from metal product surfaces provided by this utility model has the following beneficial effects:

[0017] 1. The electric telescopic rod moves the plate, allowing adjustment of the distance between the plate and the metal surface, thus adjusting the scraper's tilt angle. This adjustable scraper easily adapts to various surface shapes of metal products, enabling quick and effective rust removal without frequent tool changes or workpiece repositioning. This improves the continuity of rust removal operations and significantly enhances efficiency.

[0018] 2. By introducing lubricating oil into the inner cavity through the inlet hole and then discharging it to different positions on the scraper through multiple inner holes, the scraper is lubricated during the rust removal process. The lubricating oil forms a lubricating film between the scraper and the metal surface, effectively reducing the coefficient of friction and minimizing scraper wear during rust removal. By reducing wear, the lubrication system significantly extends the scraper's service life, reducing tool replacement frequency and costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the working structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model;

[0021] Figure 3 This is the front view of the present invention;

[0022] Figure 4 This is an enlarged cross-sectional view of a portion of the structure at the rotating shaft in this utility model.

[0023] In the figure: 1. Flat plate; 2. Block; 3. Rotating shaft; 4. Scraper; 5. First support; 6. Elastic element; 7. Magnet; 8. Second support; 9. Electromagnet; 10. Mounting plate; 11. Guide plate; 12. Connecting plate; 13. Electric telescopic rod; 14. Inner cavity; 15. Liquid inlet hole; 16. Inner hole. Detailed Implementation

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] A preferred embodiment of the scraper for rust removal from metal product surfaces provided by this utility model is, for example... Figures 1 to 4 As shown:

[0027] A scraper for removing rust from the surface of metal products includes a flat plate 1. A telescopic mechanism is provided at the upper end of the flat plate 1 and is connected to the flat plate 1. The telescopic mechanism is used to move the flat plate 1 vertically. Blocks 2 are fixedly installed at the four corners of the bottom of the flat plate 1. A rotating shaft 3 is rotatably installed between two blocks 2 on the same side. Scrapers 4 are fixedly installed on each rotating shaft 3. The scrapers 4 are symmetrically distributed on both sides. Two symmetrically distributed first supports 5 are fixedly installed at the bottom of the flat plate 1. An elastic element 6 is fixedly connected to each first support 5, and the end of the elastic element 6 is fixedly connected to the scraper 4. A magnet 7 is fixedly installed on the side of the scraper 4 facing the flat plate 1. Two symmetrically distributed second supports 8 are fixedly installed at the bottom of the flat plate 1. An electromagnet 9 is fixedly installed on each second support 8, and the electromagnet 9 faces the magnet 7.

[0028] The telescopic mechanism includes a mounting plate 10 located at the upper end of the plate 1. Multiple mounting holes are provided at both ends of the mounting plate 10. The mounting plate 10 is connected to an external rust removal machine by screws. Two spaced guide plates 11 pass through the mounting plate 10, and the lower ends of the guide plates 11 are fixedly connected to the plate 1. A connecting plate 12 is provided at the upper end of the mounting plate 10, and the connecting plate 12 is fixedly connected to the two guide plates 11. The telescopic mechanism also includes an electric telescopic rod 13, which is fixedly mounted on the mounting plate 10, and its output end is fixedly mounted on the plate 1.

[0029] The mounting plate 10 is connected to the external rust removal machine using screws. A schematic diagram of the device's operation can be found here. Figure 1 As shown, the electric telescopic rod 13 drives the plate 1 to move towards the metal product. The lower end of the scraper 4 is tightly attached to the surface of the metal product, and the elastic element 6 is in a compressed state. When the electromagnet 9 on one side is energized, the electromagnet 9 applies an attractive force to the magnet 7 opposite it, causing the electromagnet 9 and the magnet 7 to attract each other. This causes the scraper 4 on one side to move upward and separate from the surface of the metal product, while the scraper 4 on the other side is tightly attached to the surface of the metal product. The mounting plate 10 is moved along the surface of the metal product by an external rust removal machine, and the scraper 4 on one side can perform rust removal on the surface of the metal product. The distance between the plate 1 and the surface of the metal product can be adjusted by moving the plate 1 with the electric telescopic rod 13, thereby adjusting the tilt angle of the scraper 4.

[0030] When the external rust removal machine drives the mounting plate 10 to move in the opposite direction, similarly, the electromagnet 9 on the other side is energized, and the states of the scrapers 4 on both sides are switched. Throughout the reciprocating movement of the device, the scrapers 4 on both sides work together to remove rust from the surface of the metal product.

[0031] The adjustable-angle scraper 4 easily adapts to various surface shapes of metal products, enabling quick and effective rust removal without frequent tool changes or workpiece repositioning. This improves the continuity of rust removal operations and significantly enhances efficiency. By adjusting the angle between the scraper 4 and the metal product, the rust removal force can be precisely controlled, avoiding over-scraping or under-scraping. This helps ensure a uniform rust removal effect while protecting the metal substrate from damage. The adjustable-angle scraper 4 adheres more closely to the metal surface, thus more thoroughly removing rust and scale.

[0032] In a further preferred embodiment of this invention: the surface of the scraper 4 is provided with an alumina hard coating, which improves the corrosion resistance of the scraper 4. The rotating shaft 3 has an internal cavity 14, and a liquid inlet hole 15 is provided on one side of the block 2, with one end of the liquid inlet hole 15 extending into the internal cavity 14. The diameter of the liquid inlet hole 15 is smaller than the diameter of the internal cavity 14. The scraper 4 has multiple equidistant internal holes 16, one end of which communicates with the internal cavity 14, and the other end of which penetrates the scraper 4 and extends to the lower end of the scraper 4.

[0033] Lubricating oil is added to the inner cavity 14 through the inlet hole 15 and then discharged to different positions of the scraper 4 through multiple inner holes 16, thereby lubricating the scraper 4 during the rust removal process. The lubricating oil forms a lubricating film between the scraper 4 and the metal surface, effectively reducing the coefficient of friction and minimizing wear on the scraper during rust removal. By reducing wear, the lubrication system significantly extends the service life of the scraper 4, reducing tool replacement frequency and costs.

[0034] A sealing plug is installed inside the liquid inlet 15. By inserting the sealing plug into the liquid inlet 15, the port of the liquid inlet 15 can be sealed. Sealing the port of the liquid inlet 15 with the sealing plug can prevent external impurities from entering the liquid inlet 15 and prevent the inner hole 16 from being blocked by impurities.

[0035] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0036] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A scraper for removing rust from the surface of metal products, characterized in that, Includes a flat plate (1), the upper end of which is provided with a telescopic mechanism, the telescopic mechanism is connected to the flat plate (1), and the telescopic mechanism is used to drive the flat plate (1) to move in the vertical direction; Blocks (2) are fixedly installed at the four corners of the bottom of the plate (1). A rotating shaft (3) is rotatably installed between two blocks (2) on the same side. A scraper (4) is fixedly installed on each rotating shaft (3). The scrapers (4) on both sides are symmetrically distributed. Two symmetrically distributed first supports (5) are fixedly installed at the bottom of the plate (1). An elastic element (6) is fixedly connected to each first support (5). The end of the elastic element (6) is fixedly connected to the scraper (4). A magnet (7) is fixedly installed on the scraper (4) facing the side of the plate (1). Two symmetrically distributed second supports (8) are fixedly installed at the bottom of the plate (1). An electromagnet (9) is fixedly installed on each second support (8). The electromagnet (9) is positioned facing the magnet (7).

2. The scraper for rust removal from metal product surfaces as described in claim 1, characterized in that, The scraper (4) has an alumina hard coating on its surface.

3. The scraper for rust removal from metal product surfaces as described in claim 1, characterized in that, The telescopic mechanism includes a mounting plate (10) located at the upper end of the plate (1). The mounting plate (10) has multiple mounting holes at both ends. The mounting plate (10) is connected to an external rust removal machine by screws. Two spaced guide plates (11) pass through the mounting plate (10). The lower ends of the guide plates (11) are fixedly connected to the plate (1). A connecting plate (12) is provided at the upper end of the mounting plate (10). The connecting plate (12) is fixedly connected to the two guide plates (11).

4. The scraper for rust removal from metal product surfaces as described in claim 3, characterized in that, The telescopic mechanism also includes an electric telescopic rod (13), which is fixedly installed on the mounting plate (10), and the output end of the electric telescopic rod (13) is fixedly installed on the flat plate (1).

5. The scraper for rust removal from the surface of metal products as described in claim 1, characterized in that, The rotating shaft (3) has an inner cavity (14) inside, and the block (2) on one side has a liquid inlet hole (15) with one end of the liquid inlet hole (15) extending into the inner cavity (14).

6. The scraper for rust removal from the surface of metal products as described in claim 5, characterized in that, The diameter of the liquid inlet (15) is smaller than the diameter of the inner cavity (14).

7. The scraper for removing rust from the surface of metal products as described in claim 6, characterized in that, The scraper (4) has a plurality of equally spaced inner holes (16). One end of the inner hole (16) is connected to the inner cavity (14), and the other end of the inner hole (16) passes through the scraper (4) and extends to the lower end of the scraper (4).

8. The scraper for removing rust from the surface of metal products as described in claim 5, characterized in that, A sealing plug is provided inside the liquid inlet (15).

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