KR101634186B1 - Cleaning apparatus for plate type material surface and cleaning method thereof - Google Patents

Abstract

The present invention relates to a device and a method to remove foreign substances from the surface of a panel material and, more specifically, to a device to remove foreign substances from a press material, capable of removing foreign substances from the surface of a panel material by cleaning the material before press processing. The present invention is formed to be installed in a higher position than before, and a treated oil and air spray unit and a vacuum absorption unit are organically interconnected with each other to improve the efficiency of removing foreign substances. The entire process for spraying air and treated oil is able to be formed in an automation system by using a solenoid valve, and the protection of the surface of the material and the efficiency of removing the foreign substances are maximized by improving an air nozzle and a sectional part of an absorption part.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cleaning apparatus for removing foreign matters from a surface of a plate-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a device for removing foreign materials on a surface of a plate-shaped workpiece, and more particularly to a device for removing foreign matter on a surface by cleaning a plate- It is possible to improve the foreign matter removal efficiency by organically connecting the cleaning oil, the air injection means and the vacuum suction means, and by using the solenoid valve, it is possible to automate all the cleaning oil and the air injection process The present invention relates to a removing device and a removing method capable of protecting a surface of a plate-shaped workpiece and maximizing the removal efficiency of a foreign matter by improving an air nozzle and an end face of a suction part.

Plate-shaped materials are used to make various products by making various shapes through press processing. For example, various panels used in vehicles are made by pressing a plate-like material. In the press working, since the mold is adhered to the surface of the material to form the panel in a desired shape, if there is foreign substance on the surface of the plate-like material, the panel can not be formed in a desired shape and appearance defect is caused.

In order to solve such a problem, the plate-like material is cleaned by passing through a foreign matter removing device before press working. An example of such a foreign substance removing apparatus is shown in the following prior art documents.

Korean Patent Laid-Open No. 10-2008-0055268 discloses a foreign matter removing apparatus having a conveying roller for conveying a material, a brush roller for separating foreign matter on the surface of the material, and a plurality of ringer rollers for removing cleaning oil on the surface of the material. The ringer roller generally forms a surface of a nonwoven fabric, and the nonwoven fabric absorbs the cleaning oil to wipe the surface of the material cleanly.

However, in one foreign material removing device, materials of various sizes are cleaned. That is, there is no problem in the case of continuously washing a certain width of material or sequentially cleaning a material having a smaller width. However, when cleaning a material having a wider width, it is necessary to clean a material having a relatively narrow width beforehand, (Edge mark) formed by the edge of the workpiece on the surface of the workpiece, the surface of the workpiece can not be cleaned properly, resulting in a problem that surface defects are generated as a result of the press working. This is because there is no force to restore the groove formed on the surface of the ringer roller by the material during driving of the ringer roller.

In addition, at least two pairs of the ringer rollers are used to wipe away the cleaning oil mixed with foreign matters on the surface of the plate-like material while moving the plate-like material to both sides in the width direction of the plate-like material. For reference, at least two pairs of ringer rollers are used because the ringer rollers can not wipe the three essential oils at once. However, in this case, the length of the foreign material removing device in the conveying direction becomes long, so that the line length of the pressing process becomes long, requiring a large installation space, complicating the apparatus and increasing the installation cost.

On the other hand, in Japanese Patent Laid-Open Publication No. 10-263727, in addition to the technique of shooting with a cleaning liquid and sucking the surface of a plate-like material (steel plate) The sponge layer is made of a material that sucks the cleaning liquid mist effectively and is difficult to be effectively sucked, and the outer surface sponge layer of the liquid crystal filter 21 is separated from the plate-like material by frequent impacts And there is a problem that the surface of the plate-shaped material is discharged again in a contaminated state. In addition, since the size is large, a large installation space is required, and installation cost is also increased.

Japanese Unexamined Patent Application Publication No. 2002-11418 discloses an apparatus for removing surface foreign matter on a sheet material (corresponding to a plate-shaped material). A blowing roller is disposed between two spraying nozzles arranged vertically side by side in the advancing direction And removing the foreign matter on the surface of the sheet material. However, it is emphasized only that the cleaning liquid and the brush roller are used, and there is no mention of the recovery and recycling of the cleaning liquid, and in particular, the means for removing the cleaning liquid on the surface of the final cleaned plate is not mentioned. There is a problem that it is required.

Korean Patent Publication No. 10-2008-0055268 (Jun. 19, 2008) Japanese Patent Application Laid-Open No. 10-263727 (October 6, 1998) Japanese Unexamined Patent Application Publication No. 2002-11418 (Jan. 15, 2002)

The object of the present invention is to solve the above-mentioned problems of the prior art, and it is an object of the present invention to minimize the length of a foreign matter removing device in the direction in which a material is transported, The present invention also provides a foreign substance removing device and a removing method of a plate-like material surface which can improve the foreign substance removing efficiency by organically connecting cleaning oil, air jetting means and vacuum suction means.

In addition, it is possible to construct an automation system with cleaning oil and air injection process by using solenoid valve, and it is possible to improve the surface of the plate material and the removal efficiency of foreign matter by improving the air nozzle and the cross- And a method for removing foreign matter on the surface.

Another object of the present invention is to provide a method for cleaning a surface of a workpiece by thoroughly cleaning the surface of the workpiece by sucking the cleaning oil supplied for cleaning the workpiece together with the foreign matter, And to provide a foreign substance removing device and a removing method for a plate-like material surface.

According to an aspect of the present invention, there is provided an apparatus for removing foreign materials on a surface of a plate-shaped workpiece, the apparatus comprising: a housing having an inner space and an inlet and an outlet; A conveying roller disposed at a front end of the housing to provide a driving force for conveying a plate-like material to be cleaned; A brush roller that rotates in a direction opposite to a conveying direction of the material conveyed through the conveying roller and separates foreign matters from the surface of the workpiece; A first injection nozzle disposed in front of the brush roller for spraying cleaning fluid on a surface of the workpiece and spraying cleaning fluid in a direction of a contact point between the brush roller and the workpiece; A second spray nozzle disposed behind the brush roller and spraying cleaning fluid in a direction of a contact point between the brush roller and the workpiece; A suction unit disposed behind the second injection nozzle and sucking foreign matter and cleansing oil desorbed from the surface of the workpiece through the first vacuum suction unit; A vacuum roller disposed on a rear surface of the first vacuum suction means and provided with a surface member on the outer circumferential surface in close contact with the surface of the workpiece for passing the cleaning oil therethrough and sucking the cleaning oil; .

The suction unit includes a tubular casing, a suction port extending from the casing to suck the foreign matter and the cleaning oil, a partition member inserted in the suction port and partitioning the suction port into a front suction passage and a rear suction passage, Wherein the suction port and the partition member are spaced from the surface of the workpiece by 3 to 7 mm and communicate with a second vacuum system that provides a vacuum suction force to the vacuum roller.

In addition, an air injection nozzle is installed to be connected to both the front and rear sides of the suction part and injects air onto the work surface, and the air injection nozzle injects air toward the suction port.

In addition, a pair of auxiliary rollers for guiding the work to both sides of the air jet nozzle are provided, and the auxiliary roller and the feed roller are smaller in diameter than the brush roller and the vacuum roller.

The suction port is formed to have a width smaller than that of the casing so that the space is recessed outside the front and rear sides of the suction port with respect to the width of the casing and the pair of auxiliary rollers are disposed in the space, And the length is reduced.

In addition, a cylinder for raising and lowering the partition member is provided on one side of the partition member, and a partition of the inlet port by the partition member is selectively formed.

Further, the side surface of the partition member has a rectangular cross-section, and a cut-out surface is formed in the lower rear corner area to enlarge the inlet of the rear suction path.

In addition, the inlet and the end of the partition member are provided with a protective portion that is softer than the material to prevent scratches when the plate-like material is brought into contact with the material.

The cleansing oil dropped to the bottom of the housing and the cleansing oil sucked by the first and second vacuum systems are contained in a cleansing oil tank, then filtered, and then supplied to the first and second nozzles for recycling.

In addition, the first and second injection nozzles, the suction unit, and the vacuum roller are characterized in that the flow rate and on-off of the first and second injection nozzles, the suction unit, and the vacuum roller are controlled by a solenoid valve.

According to another aspect of the present invention, there is provided an apparatus for removing foreign materials on a surface of a plate-shaped workpiece, comprising: a step of supplying the workpiece into the housing through a transfer roller; Spraying cleansing oil onto the surface of the workpiece with the first injection nozzle, and spraying the cleansing oil in the direction of a contact point between the brush roller and the workpiece; Removing the foreign material while rotating the brush roller in a direction opposite to the traveling direction of the material; Spraying cleaning fluid onto the surface of the workpiece from which the foreign matter has been removed by the second injection nozzle; Jetting air in the direction of travel of the material from the front air injection nozzle; Sucking the cleansing oil and foreign matter from the suction unit; Spraying air from the rear air injection nozzle in a direction opposite to the traveling direction of the workpiece; Passing the cleaning oil remaining on the surface of the workpiece through a surface member provided on the surface of the vacuum roller, and sucking the cleaned oil through the suction hole.

The apparatus for removing foreign materials on the surface of a plate-shaped workpiece according to the present invention can obtain the following effects.

In the present invention, the foreign matter separated by the brush roller is sucked and removed by the suction unit together with the cleaning oil, and the cleaning oil remaining on the surface of the material is sucked by using the vacuum roller. In other words, it is possible to use only one pair of vacuum rollers for wiping away the essential oil left on the surface of the material, since the foreign substance is sucked together with the cleaning oil to remove most of it, so that the length of the foreign material removing device is shortened, have.

In addition, since the cleaning oil, the air jetting means and the vacuum suction means are linked with each other in order to be installed even in a narrow space of a car assembly process that is already tightly fitted with the equipment, the efficiency of removing foreign substances can be greatly improved, Effect can be obtained.

In addition, the solenoid valve can be used to constitute an automatic system for cleaning oil and air injection, and it is possible to improve the surface protection of the plate shape and the removal efficiency of the foreign object by improving the cross section of the air nozzle and the suction part.

In addition, the cleaning oil supplied for cleaning the material is sucked together with the foreign matter and is first removed, and the cleaning oil is quickly sucked by using the vacuum roller, whereby the surface of the material can be completely washed and dried.

According to the present invention, since the vacuum roller which is provided in the last chamber of the foreign substance removing apparatus and wipes the cleaning oil in the manner of sucking the cleaning oil on the surface of the workpiece can continuously maintain its surface shape by the vacuum pressure, So that it is possible to improve the appearance quality even if the materials of various widths are cleaned.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic structural view showing a configuration of a preferred embodiment of a method for removing foreign matter on a plate-shaped work surface according to the present invention; Fig.
2 is a cross-sectional view showing a configuration of a brush roller constituting an embodiment of the present invention.
3 is a sectional view showing the structure of a suction portion constituting an embodiment of the present invention.
4 is a sectional view showing a configuration of a vacuum roller constituting an embodiment of the present invention.
5 is a graph showing the results of the experiment of Example 1 of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

Referring to FIGS. 1 to 4, the housing 10 forms an outer appearance of the foreign substance removing apparatus of the present invention. The housing 10 forms an outer space while forming an inner space 12 in which the parts to be described below are installed. The housing 10 also serves to protect the environment from scattering of cleaning oil generated during operation performed in the internal space 12. [

The housing 10 does not necessarily have to have an outer appearance so as to surround the entire foreign material removing device but it is sufficient that the inlet 14 into which the work 1 is inserted and the outlet 16 to the outside are formed at least. The material 1 enters the inner space 12 through the inlet 14 and is conveyed along the inner material conveyance path 18. The outlet 16 is located at the end of the material conveyance path 18 so that the cleaned material 1 is discharged to the outside of the housing 10. The material 1 to be cleaned in the present invention is a metal plate used for press working, but the material is not limited thereto.

In the interior space 12 of the housing 10, a conveying roller 20 is first installed. A pair of conveying rollers 20 are installed near the inlet 14. The conveying roller 20 is driven by a driving source (not shown) to convey the work 1 while rotating. That is, the work 1 conveyed between the pair of conveying rollers 20 is conveyed along the work conveying path 18 by the pair of conveying rollers 20. For reference, the entire pair of the conveying rollers 20 can be moved up and down, and the conveying roller 20 at the upper portion can be moved up and down as well. The lower one of the feed rollers 20 is driven by a drive source, and the upper one can be freely rotatable.

A brush roller 22 is connected to the material conveyance path 18 at a position passing through the pair of conveyance rollers 20. The brush rollers 22 are also paired. The brush roller 22 is cylindrical and has a plurality of brushes 23 on its outer surface. The brush (23) separates foreign matter on the surface of the work (1). That is, the brush 23 is rubbed against the surface of the work 1 to separate the foreign matter on the surface of the work 1. The brush roller 22 is also rotated by a driving source, such as the driving source of the conveying roller 20, or a separate one may be used. Both of the pair of brush rollers 22 are driven by the driving source.

A first injection nozzle 24 for spraying cleaning oil toward the material conveyance path 18 corresponding to a pair of the brush rollers 22 and a second injection nozzle 24 for spraying cleaning oil in a direction opposite to the material conveyance path 18 There is a second injection nozzle 26.

The first injection nozzle 24 injects cleansing oil onto the surface of the workpiece 1 and is vertically disposed in front of the brush roller 22 so as to discharge cleaning oil in the direction of the contact point between the brush roller 22 and the workpiece Spray. The second injection nozzle 26 injects cleansing oil onto the surface of the work 1. The second injection nozzle 26 is disposed vertically on the rear side of the brush roller 22 and is connected to the brush roller 22 in the direction of the contact .

The pair of brush rollers 22 rotate in a direction opposite to the conveying direction of the work so that the frictional force with the work is increased and the foreign matter torn off from the work is not splashed in the exit direction even if there is no separate partition film. In addition, foreign matter adhering to the work 1 is separated by spraying cleaning oil from the front and rear sides toward the brush roller 22 with respect to the brush roller 22.

An air injection nozzle 27 is provided on the material conveyance path 18 passing through the brush roller 22.

The air injection nozzle 27 is connected to both the front and rear sides of the suction unit 28 and can discharge the foreign matter and the cleaning oil more thoroughly by spraying air on the surface of the material 1, The suction force of the suction unit 28 is maximized because the pressure is combined with the vacuum suction force of the suction unit.

Between the pair of left and right air spray nozzles 27 disposed in front and rear in order to remove foreign matter separated by the brush 23 and cleansing oil sprayed from the first and second spray nozzles 24 and 26, A suction portion 28 is provided at the top and bottom of the material conveyance path 18.

The suction unit 28 sucks cleaning oil or the like by using a vacuum pressure. The suction portions 28 are also located over the entire width direction of the workpiece conveyance path 18 and are respectively installed at positions corresponding to both side surfaces of the work 1. [

The suction unit 28 includes a tubular casing 280 and a suction port 282 extending from the casing 280 to receive the foreign matter and the washing fluid and a suction port 282 inserted into the suction port 282, And a first vacuum system 30 that communicates with the casing 280 to provide a vacuum suction force. The first vacuum system 30 includes a partition member 286 that divides the first suction passage 284 into a front suction passage 284 and a rear suction passage 285.

The suction port 282 and the partition member 286 are spaced from the surface of the work 1 by 3 to 7 mm and preferably spaced by about 5 mm so as not to damage the surface of the work 1. This is because, when the plate material is separated from the surface of the workpiece by less than 3 mm, the plate material becomes too close to the workpiece due to the up and down movements during the movement, so that a contact shock may occur. If the workpiece is more than 7 mm, And the effect of the invention may be deteriorated.

In order to optimize the spacing between the suction part and the plate-shaped material and the partial material to be touched, the interval between 1.5 mm and 10 mm is adjusted and the material of the contacting part is constructed as follows. I tried to pass it. As a result, we could compare the number of defective steel sheets with surface scratches as follows.

Partial contact material 1.5mm spacing 3mm spacing 5mm spacing 7mm spacing 10mm spacing aluminum 3 0 0 0 0 Copper 2 0 0 0 0 Stainless steel 7 2 One 0 0

Referring to FIG. 5, it was confirmed that the defect rate due to the contact of the steel sheet with the aluminum or copper on the end face of the suction portion was minimized as described above. When the aluminum or copper was over 7 mm, the defect rate did not occur as the suction force decreased. It can be seen that additional costs may be incurred by increasing the vacuum force for suction.

As described above, when the suction port 282 is divided into the front suction passage 284 and the rear suction passage 285, the surface area of the work 1 in which the vacuum suction force acts is reduced as compared with the case where the suction port 282 is not partitioned, The vacuum suction force is significantly increased. In other words, foreign matter or the like is primarily sucked in the front suction passage 284 by using a stronger suction force, and then the foreign substances or the like are sucked in the rear suction passage 285 to more thoroughly remove the cleaning liquid and foreign matter .

In addition, the side surface of the partition member 286 may have a rectangular cross-section, and a cut-out surface 286a may be formed in the lower rear corner area to expand the inlet of the rear suction path 285 have. In this case, cleansing oil or the like, which is not sucked in the front suction passage 284, can be easily sucked into the rear suction passage 285 along the incision surface 286a.

A cylinder 287 may be provided at one side of the partition member 286 to raise and lower the partition member 286 so that the partition of the inlet 282 by the partition member 286 may be selectively formed This configuration determines whether or not the suction port 282 is partitioned according to various conditions such as the vacuum suction force of the first vacuum system 30 and the height of the suction port 282 and the surface of the work 1.

The first vacuum system 30 is interlocked to provide a vacuum pressure to the suction portion 28. The vacuum pressure provided by the first vacuum system 30 is transmitted to the first suction flow path 28 by the suction portions 28, (32).

On the other hand, pairs of the auxiliary rollers 34 are installed on the material conveyance path 18 provided with the second injection nozzle 28. The pair of auxiliary rollers 34 serve to guide and guide the material 1 so that it can be stably transported.

It is preferable that the auxiliary roller 34 is disposed on both sides of the suction unit 28 so as to effectively prevent the material 1 from vibrating up and down by the vacuum suction force of the suction unit 28.

In the case where the auxiliary roller 34 is not installed or moves up and down despite the installation, if the material 1 being conveyed is scratched by the suction port 282 or the partition member 286, It is preferable that the end of the suction port 282 and the partition member 286 are provided with a protective portion 281 that is softer than the material so as to prevent the occurrence of scratches. It is preferable that the material of the soft protective part is made of aluminum or copper material and it is preferable to minimize the contact part such as a circular cross-sectional shape in contact with the plate-shaped material Do.

In order to minimize the installation space of the auxiliary roller 34, the suction port 282 is formed in the casing 34. In this case, And a pair of auxiliary rollers (34) are provided on the outer side of the inlet (282) on the front and rear sides of the casing (280) with respect to the width of the casing (280) Respectively. The auxiliary roller 34 and the conveying roller 20 are formed to have a smaller diameter than the brush roller 22 and the vacuum roller 36, for example, a diameter smaller than 1/2 of the brush roller 22, It is possible to minimize.

In the pair of the auxiliary rollers 34, those supporting the lower surface of the work 1 are driven by the driving source, and the upper part of the work 1 is preferably freely rotated.

Next, a pair of vacuum rollers 36 is provided at a position passing through the suction unit 28. The pair of vacuum rollers 36 serve to finally remove and dry the cleansing oil adhering to the surface of the work 1 in the last chamber of the material conveyance path 18. Vacuum pressure acts on the surface of the vacuum roller 36 so that the cleaning oil remaining on the outer surface of the work 1 passes through and is removed.

The configuration of the vacuum roller 36 is shown in Fig. The vacuum roller 36 has a cylindrical shape, and a vacuum flow path 37 is formed therein. The vacuum passage 37 is communicated with the outside through the outer surface of the vacuum roller 36 by a plurality of suction holes 37 '. Vacuum pressure is transmitted to the surface of the vacuum roller 36 through the suction hole 37 '.

The surface member 38 provided on the outer surface of the vacuum roller 36 is made of a material such as a fiber material having through holes because it is used for passing cleaning oil. A most preferred example of the surface member 38 is a nonwoven fabric. The vacuum pressure provided through the suction hole 37 'is influenced by the surface member 38. As a result, a vacuum pressure acts on the outer surface of the surface member 38, so that the cleaning oil can be easily sucked.

The surface member 38 has a property of being brought into close contact with the surface of the vacuum roller 36 while a vacuum pressure acts on the surface member 38. Therefore, no edge mark is formed on the surface member 38, and the surface of the work 1 can be wiped uniformly.

The vacuum passage 37 is connected to the second vacuum system 39 through the second suction passage 40 at both ends of the vacuum roller 36. The second vacuum system 39 creates a vacuum pressure and provides it to the vacuum roller 36. The second suction passage 40 is connected to the vacuum passage 37 at both ends of each vacuum roller 36 to provide a vacuum pressure. For reference, it is desirable that the first vacuum system 30 provides a relatively higher vacuum pressure relative to the second vacuum system 39, and that the suction force is relatively higher, This is because it is preferable to remove only the foreign substances contained in the essential oil more reliably and then to suck and dry the remaining cleaning liquid at the final stage.

In the pair of vacuum rollers 36, the supporting of the lower surface of the work 1 is performed by the driving source (the driving source or the separate driving source described above) to carry the work 1. The vacuum roller 36 at the upper portion of the work 1 can be raised and lowered separately from the lower vacuum roller 36 and the pair of vacuum rollers 36 can be moved up and down.

The upper portion of the brush roller 22, the auxiliary roller 34, the suction portion 28, and the spray nozzles 24 and 26 may be raised and lowered separately from the lower portion thereof, have.

The cleansing oil dropped to the lower portion of the housing 10 and the cleansing oil sucked by the first and second vacuum systems 30 and 39 are received in the cleansing oil tank 41 and then filtered (Filtered) and re-supplied or recycled to the first and second injection nozzles 24 and 26, thereby preventing environmental pollution and enabling efficient use of resources.

The first and second injection nozzles 24 and 26, the suction unit 28, and the vacuum roller 36 are preferably controlled by the solenoid valve 43 so that the flow rate and the on-off state thereof are automatically controlled.

Hereinafter, the use of a material foreign material removing device for press according to the present invention having the above-described structure will be described in detail.

The method for removing foreign substances on the surface of a workpiece according to the present invention includes the steps of supplying a raw material 1 into a housing 10 through a feed roller 20 and feeding the raw oil 1 to the surface of the raw material 1 with the first injection nozzle 24, Spraying the brush roller 22 in the direction of a contact point between the brush roller 22 and the workpiece; removing the foreign matter while rotating the brush roller 22 in the direction opposite to the traveling direction of the workpiece 1; The method comprising the steps of spraying cleaning fluid on the surface of the work 1 from which the foreign matter has been removed by the nozzle 26 and spraying cleaning fluid from the air injection nozzle 27 disposed in front of the suction part 28 in the traveling direction of the work 1 (1) to the air injection nozzle (27) disposed at the rear of the suction part (28); and a step of injecting air into the suction part (28) And a step of spraying air in a direction opposite to the direction of the surface of the vacuum roller (36) It may be mentioned that it comprises a step for sucking in the following, the suction hole 37, which has absorbed the three essential oil remaining on the surface material (1) from the material (38).

More specifically, in the foreign substance removing apparatus, the work 1 is transferred to the workpiece conveyance path 18 formed inside the housing 10 through the inlet 14. In the material conveying path 18, it enters between the pair of conveying rollers 20. The material 1 is moved along the material conveying path 18 by the conveying roller 20.

The material 1 conveyed by the conveying roller 20 enters between the pair of brush rollers 22. The brush 23 on the surface of the brush roller 22 rubs against the surface of the work 1 to separate the foreign matter on the surface of the work 1. [ At this time, the cleaning fluid is sprayed toward the contact point between the brush roller 22 and the work 1 through the first and second spray nozzles 24 and 26, thereby helping to separate foreign matter by the brush 23. Here, the cleansing oil sprayed to the brush roller 22 and foreign matter separated from the raw material 1 are partially transferred together with the raw material 1 while remaining on the surface of the raw material 1, And is sent toward the oil tank 41. The oil tank 41 is provided with a water tank 41,

The raw material 1 having passed through the brush roller 22 passes through the auxiliary roller 34 and foreign matter or the like is additionally removed from the air sprayed from the air jet nozzle 27 located between the pair of the auxiliary rollers 34 And the suction force at the suction portion 28 is improved.

Meanwhile, the foreign matter separated from the raw material 1 and the cleansing oil sprayed from the second injection nozzle 26 is sucked into the suction unit 28. The suction unit 28 is disposed on both outer sides of the material 1 So that both the foreign matter and the washing oil are removed by a large suction force while passing through the suction unit 28. [ The cleansing oil and foreign substances sucked in the suction unit 28 are sent to the cleansing oil tank 41 through the first suction passage 32. The cleaned oil recovered from the oil refinery tank is filtered again by the filter 42, and the foreign substance is removed and used again.

The material 1 having passed through the suction unit 28 is conveyed to a pair of the vacuum rollers 36. In the vacuum roller (36), the cleaning oil remaining on the surface of the work (1) is wiped off by the surface member (38). The cleansing oil absorbed in the surface member 38 is sucked into the suction hole 37 'by the suction force provided by the second vacuum system 39 and is supplied to the second suction passage 40 ) And sent to the oil tank.

On the other hand, since the vacuum is continuously applied to the surface member 38 through the suction hole 37 ', a constant surface shape can be maintained at all times. Since the shape of the surface member 38 can be kept constant in this way, edge marks are not generated, and the surface of the surface of the work 1 can be cleaned with the surface member 38, Substrate (1) The quality of the surface is improved.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

For reference, the conveying roller 20 serves to convey the work 1. However, the work 1 can be conveyed even if the conveying roller 20 is not necessarily used. For example, the material 1 may be passed through the brush roller 22 and then continuously moved to the vacuum roller 36 by providing a driving force for entering the work 1 into the inlet 14 The operation of the foreign material removing device can be performed even if the conveying roller 20 is not present.

10: housing 12: inner space
14: entrance 16: exit
18: Material feed path 20: Feed roller
22: Brush roller 23: Brush
24: First injection nozzle 26: Second injection nozzle
28: Suction part 280: Casing
281: Protection section 282:
284: front suction channel 285: rear suction channel
286: partition member 286a: incision surface
287: cylinder 30: first vacuum system
32: first suction flow passage 34: auxiliary roller
36: Vacuum roller 37: Vacuum flow path
37: suction hole 38: surface member
39: second vacuum system 40: second suction flow path
41: Oil refinery tank 42: Filter
43: Solenoid valve

Claims (11)

A housing in which an inner space is provided and an inlet and an outlet are formed in front and rear;
A conveying roller disposed at a front end of the housing to provide a driving force for conveying a plate-like material to be cleaned;
A brush roller that rotates in a direction opposite to a conveying direction of the material conveyed through the conveying roller and separates foreign matters from the surface of the workpiece;
A first injection nozzle disposed in front of the brush roller for spraying cleaning fluid on a surface of the workpiece and spraying cleaning fluid in a direction of a contact point between the brush roller and the workpiece;
A second spray nozzle disposed behind the brush roller and spraying cleaning fluid in a direction of a contact point between the brush roller and the workpiece;
A suction unit disposed behind the second injection nozzle and sucking foreign matter and cleansing oil desorbed from the surface of the workpiece through the first vacuum suction unit;
And a vacuum roller disposed on the rear side of the first vacuum suction means and provided on the outer circumferential surface with a surface member that is in close contact with the surface of the workpiece to allow the cleaning oil to pass therethrough, Shaped material surface of the workpiece.
The method according to claim 1,
Wherein the suction unit includes a tubular casing, a suction port extending from the casing to suck the foreign matter and the washing oil, a partition member inserted in the suction port and partitioning the suction port into a front suction passage and a rear suction passage, A first vacuum system for providing a vacuum suction force, wherein the inlet and the partition member are spaced 3-7 mm from the work surface,
Wherein the vacuum roller is connected to a second vacuum system that provides a vacuum suction force to the vacuum roller.
3. The method of claim 2,
Wherein an air injection nozzle is provided to be connected to both the front and rear sides of the suction unit to inject air onto the surface of the workpiece, and the air injection nozzle injects air toward the suction port. Removal device.
The method of claim 3,
A pair of auxiliary rollers for guiding the material to both sides of the air jet nozzle,
Wherein the auxiliary roller and the conveying roller are smaller in diameter than the brush roller and the vacuum roller.
5. The method of claim 4,
Wherein the suction port is formed to have a width smaller than that of the casing so as to be spaced apart from the front and rear sides of the suction port with respect to the width of the casing,
Wherein the pair of auxiliary rollers are arranged in the space to reduce the length of the foreign material removing device.
3. The method of claim 2,
And a cylinder for raising and lowering the partition member is provided on one side of the partition member so that a partition of the inlet port by the partition member is selectively formed.
3. The method of claim 2,
Wherein a side surface of the partition member has a rectangular cross section and a cut surface is formed in a lower rear corner area to enlarge an inlet of the rear suction passage.
3. The method of claim 2,
Wherein the suction port and the end of the partition member are provided with a protective portion that is softer than the material to prevent scratches when the plate-like material is contacted.
3. The method of claim 2,
The cleaning oil dropped to the lower portion of the housing and the cleaning oil sucked by the first and second vacuum systems are accommodated in a cleansing oil tank and then filtered and then supplied to the first and second injection nozzles to be recycled. The foreign matter removing device for the surface of the material.
The method according to claim 1,
Wherein the first and second injection nozzles, the suction unit, and the vacuum roller are controlled by a solenoid valve to control flow rate and on-off state.
A method for removing foreign matter on a work surface using the apparatus of claim 3,
Feeding the material through the conveying roller into the housing;
Spraying cleansing oil onto the surface of the workpiece with the first injection nozzle, and spraying the cleansing oil in the direction of a contact point between the brush roller and the workpiece;
Removing the foreign material while rotating the brush roller in a direction opposite to the traveling direction of the material;
Spraying cleaning fluid onto the surface of the workpiece from which the foreign matter has been removed by the second injection nozzle;
Jetting air in the direction of travel of the material from the front air injection nozzle;
Sucking the cleansing oil and foreign matter from the suction unit;
Spraying air from the rear air injection nozzle in a direction opposite to the traveling direction of the workpiece;
And passing the remaining cleaning oil through a surface member provided on a surface of the vacuum roller, and sucking the remaining oil from the suction hole.

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