Workpiece surface cleaning device

Abstract

This invention discloses a workpiece surface cleaning device, comprising: a frame with a cleaning channel for the workpiece to be cleaned to pass through in a first direction; a first wiping assembly disposed on one side of the cleaning channel for contact cleaning of the workpiece; and a first blowing assembly connected to the first wiping assembly for outputting cleaning airflow in at least two directions to the workpiece, so that residual foreign matter adhering to the workpiece detaches from the workpiece along both sides in a second direction; wherein the first direction and the second direction are arranged at an angle. The workpiece surface cleaning device of this invention outputs cleaning airflow in at least two directions to the workpiece through the first blowing assembly, causing the airflow acting on the workpiece surface to generate a tangential component force along the second direction, thereby providing a path for residual foreign matter on the workpiece surface to be swept away along both sides in the second direction. This effectively avoids contaminants falling back due to disordered splashing and solves the technical problem of incomplete cleaning of emulsions and the formation of residual defects on the workpiece surface caused by vertical blowing.

Description

Technical Field

[0001] This invention relates to the field of metal production and processing technology, and in particular to a workpiece surface cleaning device. Background Technology

[0002] In the field of metal rolling, in order to obtain strip steel with high surface quality, it is usually necessary to use wiping rollers to mechanically squeeze the strip steel surface and supplement it with compressed air to remove the emulsion remaining on the strip steel surface after rolling. The currently commonly used cleaning technology is to make the airflow direction of the compressed air through the nozzle perpendicular to the strip steel surface, and use the impact force of the airflow to blow away the attached emulsion from the strip steel surface.

[0003] However, although the above-mentioned vertical purging method can disperse most of the liquid film, because its force direction is perpendicular to the strip surface, the dispersed emulsion droplets lack a clear and continuous guiding path away from the main surface of the strip after splashing, causing some droplets to fall back onto the strip after movement.

[0004] Therefore, the shortcomings of existing cleaning technologies are that, since the blowing airflow is perpendicular to the workpiece surface, the blowing force mainly disperses the residual liquid rather than effectively guides it away, resulting in liquid contaminants not being completely removed and ultimately forming residual defects on the workpiece surface. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a workpiece surface cleaning device to solve the technical problem that the blowing airflow of the existing cleaning device is perpendicular to the workpiece surface, and the blowing force generated mainly disperses the residual liquid rather than effectively guides it away, resulting in the liquid contaminants not being completely removed and ultimately forming residual defects on the workpiece surface.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides a workpiece surface cleaning device, comprising: a frame having a cleaning channel for a workpiece to be cleaned to pass through in a first direction; a first wiping assembly disposed on one side of the cleaning channel for contact cleaning of the workpiece; and a first blowing assembly connected to the first wiping assembly for outputting cleaning airflow in at least two directions to the workpiece so that residual foreign matter attached to the workpiece detaches from the workpiece along both sides in a second direction; wherein the first direction and the second direction are arranged at an angle.

[0007] In some embodiments, the first purging assembly includes an air source and a plurality of nozzles connected to the air source.

[0008] In some embodiments, the plurality of nozzles includes a first nozzle and a second nozzle, wherein the air outlet direction of the first nozzle and the air outlet direction of the second nozzle are set at an angle.

[0009] In some embodiments, the first purging assembly includes a gas distribution pipe disposed along a second direction, the gas distribution pipe being connected to the gas source, and the plurality of nozzles being connected to the gas distribution pipe.

[0010] In some embodiments, the gas distribution pipe includes: a first side portion and a second side portion, wherein the first side portion and the second side portion are connected along the second direction; The plurality of nozzles include a first nozzle connected to the first side and a second nozzle connected to the second side, wherein the air outlet direction of the first nozzle and the air outlet direction of the second nozzle are set at an angle.

[0011] In some embodiments, the air outlet direction of the first nozzle forms a first acute angle with the normal to the surface of the workpiece, and the air outlet direction of the second nozzle forms a second acute angle with the normal to the surface of the workpiece. The first nozzle and the second nozzle are symmetrical about the normal line, so that the airflow output by the first nozzle and the second nozzle diverges on both sides along the second direction when it blows toward the workpiece.

[0012] In some embodiments, the workpiece surface cleaning device further includes: The second wiping component is located on the other side of the cleaning channel and is used for contact cleaning of the workpiece; The second blowing assembly, connected to the second wiping assembly, is used to output a cleaning airflow to the workpiece so that residual foreign matter attached to the workpiece is removed from the workpiece in a second direction; A cleaning gap is formed between the first wiping assembly and the second wiping assembly to allow the workpiece to pass through.

[0013] In some embodiments, the workpiece surface cleaning device further includes: The third purging assembly is disposed at the outlet of the cleaning channel; the third purging assembly includes a mounting bracket and an air knife, the mounting bracket is connected to the upper side wall of the cleaning channel, and the air knife is mounted on the mounting bracket and connected to an air source for outputting a cleaning airflow to the workpiece.

[0014] In some embodiments, the mounting bracket includes a support and a baffle, the support being connected to the upper sidewall of the cleaning channel, and the air knife being connected to the support; the baffle is connected to the support and / or the upper sidewall of the cleaning channel, and the baffle is located on the side of the support facing the entrance of the cleaning channel.

[0015] In some embodiments, a guide channel is provided on the side of the baffle facing the inlet of the cleaning channel, the guide channel being used to discharge residual foreign matter splashed onto the baffle through the slots on both sides; wherein, the distance between the slots on both sides of the guide channel in the second direction is greater than the width of the workpiece in the second direction.

[0016] The workpiece surface cleaning device of the present invention outputs cleaning airflow in at least two directions to the workpiece through a first blowing component, so that the airflow acting on the workpiece surface generates a tangential component force along the second direction, thereby providing a path for residual foreign matter on the workpiece surface to be swept away to both sides along the second direction, effectively avoiding the fall of contaminants due to disordered splashing, and solving the technical problem of incomplete cleaning of emulsion caused by vertical blowing and the formation of residual defects on the workpiece surface.

[0017] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are described in detail below. Attached Figure Description

[0018] Figure 1 This is a first side view of the workpiece surface cleaning device according to an embodiment of the present invention; Figure 2 This is a front view schematic diagram of the first blowing component of the workpiece surface cleaning device according to an embodiment of the present invention; Figure 3 This is a bottom view of the first blowing component of the workpiece surface cleaning device according to an embodiment of the present invention; Figure 4 This is a second side view of the workpiece surface cleaning device according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the third blowing component of the workpiece surface cleaning device according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 10. First wiping assembly; 20. First purging assembly; 21. Gas distribution pipe; 211. First side; 212. Second side; 22. Nozzle; 221. First nozzle; 222. Second nozzle; 30. Second wiping assembly; 40. Second purging assembly; 50. Third purging assembly; 51. Support; 52. Baffle; 521. Guide channel; 53. Air knife; 60. Workpiece. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] 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.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] Please see Figures 1-3 This invention provides a workpiece surface cleaning device, comprising: a frame having a cleaning channel for a workpiece 60 to be cleaned to pass through in a first direction; a first wiping assembly 10 disposed on one side of the cleaning channel for contact cleaning of the workpiece 60; and a first blowing assembly 20 connected to the first wiping assembly 10 for outputting cleaning airflow in at least two directions to the workpiece 60 so that residual foreign matter attached to the workpiece 60 detaches from the workpiece 60 along both sides in a second direction; wherein the first direction and the second direction are arranged at an angle.

[0028] It is understood that in this embodiment, the first blowing assembly 20 outputs cleaning airflow in at least two directions to the workpiece 60, so that the airflow acting on the surface of the workpiece 60 generates a tangential component force along the second direction, thereby providing a path for residual foreign matter on the surface of the workpiece 60 to be swept away to both sides along the second direction. This effectively avoids contaminants falling back due to disordered splashing and solves the technical problem of incomplete cleaning of emulsion caused by vertical blowing and the formation of residual defects on the surface of the workpiece 60.

[0029] Optionally, the first wiping component 10 is disposed on the upper side of the cleaning channel for contact cleaning of the upper surface of the workpiece 60.

[0030] Optionally, the first direction is the length direction of the workpiece 60, which is also the conveying direction of the workpiece 60 in the cleaning channel; the second direction is the width direction of the workpiece 60, and the first direction and the second direction are perpendicular.

[0031] Optionally, the first wiping assembly 10 includes a first wiping roller and a first moving module. The first wiping roller is rotatably disposed at the moving end of the first moving module. The first moving module can drive the first wiping roller to move closer to or away from the workpiece 60. The first blowing assembly 20 is also connected to the moving end of the first moving module and can move closer to or away from the workpiece 60 together with the first wiping roller.

[0032] In this embodiment, the workpiece surface cleaning device mainly includes a frame, a first wiping assembly 10, and a first blowing assembly 20. The frame is provided with a cleaning channel, through which the workpiece 60 (such as strip steel) to be cleaned continuously passes along a predetermined first direction. The first wiping assembly 10 is disposed on one side of the cleaning channel and is used to contact the surface of the workpiece 60 as it passes through, performing mechanical wiping to initially scrape off most of the residual liquid film. The first blowing assembly 20 is connected to the first wiping assembly 10 and is configured to output at least two cleaning airflows (e.g., compressed air) with different directions to the surface of the workpiece 60. The resultant force of the airflow acting on the surface of the workpiece 60 can be decomposed into a normal component and a tangential component. The tangential component provides a clear lateral momentum to the residual foreign matter, enabling it to be continuously swept away from both sides of the workpiece 60 along a second direction, rather than being randomly splashed or falling back.

[0033] In some embodiments, the first purging assembly 20 includes an air source and a plurality of nozzles 22 connected to the air source. The air source, serving as the supply end of the clean airflow, can be a centralized compressed air network in the factory, an air compressor, or a compressed air tank, etc., responsible for providing a continuous supply of clean gas at a certain pressure. The plurality of nozzles 22 serve as the release end of the airflow, designed to distribute the airflow from the same air source and guide it to the surface of the workpiece 60 in at least two directions.

[0034] In some embodiments, the plurality of nozzles 22 includes a first nozzle 221 and a second nozzle 222, wherein the air outlet direction of the first nozzle 221 and the air outlet direction of the second nozzle 222 are set at an angle.

[0035] Optionally, multiple first nozzles 221 are arranged adjacent to each other, and multiple second nozzles 222 are arranged adjacent to each other.

[0036] Specifically, the air outlet direction of the first nozzle 221 and the air outlet direction of the second nozzle 222 can be tilted outward symmetrically relative to the normal of the surface of the workpiece 60, thereby forming a blowing pattern similar to an outward V-shape, so as to produce the effect of sweeping away contaminants evenly from the center line of the workpiece 60 to both sides in the second direction.

[0037] In some embodiments, the first purging assembly 20 includes a gas distribution pipe 21 disposed along a second direction, the gas distribution pipe 21 being connected to a gas source, and a plurality of nozzles 22 being connected to the gas distribution pipe 21.

[0038] It is understandable that by setting up the gas distribution pipe 21, the single airflow from the gas source can be distributed and stabilized within the pipe body, thereby providing airflow to the multiple nozzles 22 arranged along the second direction. This centralized distribution and multi-point output method helps to form a uniform and continuous blowing air curtain in the entire width direction of the workpiece 60, avoiding the problem of uneven cleaning caused by excessively strong or weak local airflow.

[0039] Optionally, multiple nozzles 22 are spaced at equal intervals along the second direction to make the purging effect more uniform and ensure that the airflow field generated by adjacent nozzles 22 can effectively cover and seamlessly connect the surface of the workpiece 60.

[0040] In some embodiments, the gas distribution pipe 21 includes a first side portion 211 and a second side portion 212, the first side portion 211 and the second side portion 212 being connected along a second direction; wherein, the plurality of nozzles 22 includes a first nozzle 221 communicating with the first side portion 211 and a second nozzle 222 communicating with the second side portion 212, the gas outlet direction of the first nozzle 221 and the gas outlet direction of the second nozzle 222 being arranged at an angle.

[0041] It is understandable that the first nozzle 221 and the second nozzle 222, which need to have different air outlet directions, are respectively disposed on the first side 211 and the second side 212, so that the first nozzle 221 disposed on the first side 211 is tilted towards one side and the second nozzle 222 disposed on the second side 212 is tilted towards the other side, thereby efficiently and reliably forming the required composite airflow field to sweep away residual foreign matter from the center to both sides.

[0042] In some embodiments, the air outlet direction of the first nozzle 221 forms a first acute angle with the normal to the surface of the workpiece 60, and the air outlet direction of the second nozzle 222 forms a second acute angle with the normal to the surface of the workpiece 60; wherein the first nozzle 221 and the second nozzle 222 are symmetrical about the normal as an axis of symmetry, so that the airflow output by the first nozzle 221 and the second nozzle 222 diverges on both sides along the second direction when it blows toward the workpiece 60.

[0043] In some embodiments, the workpiece surface cleaning device further includes: a second wiping assembly 30 disposed on the other side of the cleaning channel for contact cleaning of the workpiece 60; a second blowing assembly 40 connected to the second wiping assembly 30 for outputting a cleaning airflow to the workpiece 60 so that residual foreign matter attached to the workpiece 60 detaches from the workpiece 60 in a second direction; wherein a cleaning gap is formed between the first wiping assembly 10 and the second wiping assembly 30 for the workpiece 60 to pass through.

[0044] Optionally, the first wiping component 10 and the second wiping component 30 are symmetrically arranged, and the first blowing component 20 and the second blowing component 40 are symmetrically arranged.

[0045] like Figure 4 and Figure 5As shown, in some embodiments, the workpiece surface cleaning device further includes a third blowing assembly 50, which is disposed at the outlet of the cleaning channel. The third blowing assembly 50 includes a mounting bracket and an air knife 53. The mounting bracket is connected to the upper side wall of the cleaning channel, and the air knife 53 is mounted on the mounting bracket and connected to an air source for outputting a cleaning airflow to the workpiece 60. Specifically, the third blowing assembly 50 is disposed on the upper side of the cleaning channel.

[0046] It is understandable that after being processed by the first wiping component 10 and the first blowing component 20, most of the residual contaminants have been removed, but there may still be a small number of extremely fine droplets remaining. In this embodiment, the air knife 53 of the third blowing component 50 can generate a layered airflow curtain, which can effectively blow away any small amount of residue that may escape completely from the surface of the workpiece 60, thereby ensuring that the workpiece 60 reaches the highest surface cleanliness standard when leaving the cleaning device and meets the quality requirements of high-end products.

[0047] Furthermore, the mounting bracket includes: a bracket 51 and a baffle 52, the bracket 51 being connected to the upper side wall of the cleaning channel, and the air knife 53 being connected to the bracket 51; the baffle 52 being connected to the bracket 51 and / or the upper side wall of the cleaning channel, and the baffle 52 being located on the side of the bracket 51 facing the entrance of the cleaning channel.

[0048] Understandably, when the air knife 53 disperses the residual liquid droplets on the surface of the workpiece 60, due to the intense interaction between the airflow and the liquid surface, some droplets may gain sufficient kinetic energy to splash upwards and towards the cleaning channel outlet. These splashing droplets may cross the air knife 53 device, pass through the installation gap between the upper side of the air knife 53 and the upper sidewall of the cleaning channel, fall back down, and contaminate the already cleaned upper surface of the workpiece 60, forming secondary pollution. Based on this, this embodiment also provides a baffle 52, whose main function is to form a physical barrier to effectively intercept these splashing droplets towards the cleaning channel outlet. The baffle 52 blocks the splashing droplets on the side surface facing the cleaning channel inlet, preventing them from reaching the critical area behind the air knife 53, thereby cutting off the path of the contaminant's fall and ensuring the final cleaning effect.

[0049] Furthermore, a guide channel 521 is provided on the side of the baffle 52 facing the entrance of the cleaning channel. The guide channel 521 is used to discharge residual foreign matter splashed on the baffle 52 through the slots on both sides. The distance between the slots on both sides of the guide channel 521 in the second direction is greater than the width of the workpiece 60 in the second direction.

[0050] Understandably, the distance between the two openings of the guide channel 521 in the second direction is greater than the width of the workpiece 60 in the second direction. This ensures that liquid contaminants discharged from the guide channel 521 can flow away completely from the areas outside the two sides of the workpiece 60 without dripping back onto the surface of the workpiece 60 as it passes through the cleaning channel.

[0051] Optionally, the guide channel 521 is an arc shape that protrudes upward in the middle. This arc shape design conforms to the characteristic of liquid flowing naturally downward due to gravity, which can more smoothly guide the liquid collected in the middle of the baffle 52 to the two side openings and reduce the retention of liquid in the guide channel 521.

[0052] The above examples are merely illustrative of the technical content of the present invention to facilitate easier understanding by the reader, but do not imply that the implementation of the present invention is limited to these examples. Any technical extensions or re-creations made based on the present invention are protected by the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A workpiece surface cleaning device, characterized in that, include: The frame is equipped with a cleaning channel for the workpiece to be cleaned to pass through in a first direction; A first wiping component is disposed on one side of the cleaning channel for contact cleaning of the workpiece; A first blowing assembly, connected to the first wiping assembly, is used to output cleaning airflow in at least two directions to the workpiece so that residual foreign matter attached to the workpiece detaches from the workpiece along both sides in the second direction. The first direction and the second direction are set at an angle.

2. The workpiece surface cleaning device according to claim 1, characterized in that, The first purging assembly includes an air source and a plurality of nozzles connected to the air source.

3. The workpiece surface cleaning device according to claim 2, characterized in that, The plurality of nozzles includes a first nozzle and a second nozzle, wherein the air outlet direction of the first nozzle and the air outlet direction of the second nozzle are set at an angle.

4. The workpiece surface cleaning device according to claim 2, characterized in that, The first purging assembly includes a gas distribution pipe disposed along a second direction, the gas distribution pipe being connected to the gas source, and the plurality of nozzles being connected to the gas distribution pipe.

5. The workpiece surface cleaning device according to claim 4, characterized in that, The gas distribution pipe includes: a first side portion and a second side portion, wherein the first side portion and the second side portion are connected along the second direction; The plurality of nozzles include a first nozzle connected to the first side and a second nozzle connected to the second side, wherein the air outlet direction of the first nozzle and the air outlet direction of the second nozzle are set at an angle.

6. The workpiece surface cleaning device according to claim 3 or 5, characterized in that, The air outlet direction of the first nozzle forms a first acute angle with the normal to the surface of the workpiece, and the air outlet direction of the second nozzle forms a second acute angle with the normal to the surface of the workpiece. The first nozzle and the second nozzle are symmetrical about the normal line, so that the airflow output by the first nozzle and the second nozzle diverges on both sides along the second direction when it blows toward the workpiece.

7. The workpiece surface cleaning device according to claim 1, characterized in that, The workpiece surface cleaning device also includes: The second wiping component is located on the other side of the cleaning channel and is used for contact cleaning of the workpiece; The second blowing assembly, connected to the second wiping assembly, is used to output a cleaning airflow to the workpiece so that residual foreign matter attached to the workpiece is removed from the workpiece in a second direction; A cleaning gap is formed between the first wiping assembly and the second wiping assembly to allow the workpiece to pass through.

8. The workpiece surface cleaning device according to claim 1, characterized in that, The workpiece surface cleaning device also includes: The third purging assembly is disposed at the outlet of the cleaning channel; the third purging assembly includes a mounting bracket and an air knife, the mounting bracket is connected to the upper side wall of the cleaning channel, and the air knife is mounted on the mounting bracket and connected to an air source for outputting a cleaning airflow to the workpiece.

9. The workpiece surface cleaning device according to claim 8, characterized in that, The mounting bracket includes a support and a baffle. The support is connected to the upper side wall of the cleaning channel, and the air knife is connected to the support. The baffle is connected to the support and / or the upper side wall of the cleaning channel, and the baffle is located on the side of the support facing the entrance of the cleaning channel.

10. The workpiece surface cleaning device according to claim 9, characterized in that, The baffle is provided with a flow guide groove on the side facing the entrance of the cleaning channel. The flow guide groove is used to discharge residual foreign matter splashed on the baffle through the groove openings on both sides. The distance between the groove openings on both sides of the flow guide groove in the second direction is greater than the width of the workpiece in the second direction.

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