Polar plate dust removal device and feeding equipment

Abstract

The application discloses a polar plate dust removal device and a feeding equipment, and relates to the technical field of polar plate production. The polar plate dust removal device comprises two connecting seats, a fixing assembly and a dust removal assembly. The two connecting seats are arranged at intervals along a first direction. The dust removal assembly comprises a first dust removal part and a second dust removal part. The first dust removal part and the second dust removal part are arranged along the first direction. The two ends of the first dust removal part along the first direction are fixed on the two connecting seats through the fixing assembly respectively. The two ends of the second dust removal part along the first direction are fixed on the two connecting seats through the fixing assembly respectively. The first dust removal part and the second dust removal part are arranged at intervals along a second direction. The first dust removal part and the second dust removal part are used for contacting the two sides of the polar plate along the second direction respectively. The polar plate dust removal device can remove dust from the polar plate.

Description

Technical Field

[0001] This utility model relates to the field of electrode plate production technology, and more specifically, to an electrode plate dust removal device and a feeding device. Background Technology

[0002] Metal plates, as important industrial materials, are widely used in electronics, automotive, and energy industries. With the increasing automation of manufacturing, stamping feeders have become one of the key pieces of equipment in metal plate production lines, used to achieve efficient and precise material conveying. Traditional stamping feeders cannot remove dust from the plates, but in the metal plate stamping process, the cleanliness of the sheet surface directly affects the quality of the subsequent stamped products. Tiny dust particles can lead to problems such as wear on stamping dies, scratches on the product surface, or poor coating adhesion. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a plate dust removal device that can remove dust from the plate.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: In a first aspect, this application provides an electrode plate dust removal device having a first direction and a second direction, the first direction being perpendicular to the second direction. The electrode plate dust removal device includes: two connecting seats, the two connecting seats being spaced apart along the first direction; a fixing assembly; and a dust removal assembly including a first dust removal component and a second dust removal component, both the first dust removal component and the second dust removal component extending along the first direction. The two ends of the first dust removal component along the first direction are respectively fixed to the two connecting seats by the fixing assembly, and the two ends of the second dust removal component along the first direction are respectively fixed to the two connecting seats by the fixing assembly. The first dust removal component and the second dust removal component are spaced apart along the second direction, and the first dust removal component and the second dust removal component are respectively used to contact the two sides of the electrode plate along the second direction.

[0005] In an optional embodiment, the first dust removal component includes a first dust removal part and a first connecting part. The two ends of the first connecting part along the first direction are respectively fixed to the two connecting seats by the fixing component. The first dust removal part is connected to the end of the first connecting part along the second direction that is close to the second dust removal component. The end of the first dust removal part along the second direction that is away from the first connecting part is used to contact the side of the electrode plate along the second direction.

[0006] In an optional embodiment, the first dust removal part is a dust removal brush.

[0007] In an optional embodiment, the fixing component includes a fixing member and a plurality of clamping members. The fixing member is connected to the connecting seat, and each of the clamping members is connected to the fixing member. One end of the first dust removal member along the second direction is clamped between the fixing member and at least one of the clamping members, and the other end of the second dust removal member along the second direction is clamped between the fixing member and at least one of the clamping members.

[0008] In an optional embodiment, the first dust removal component further has a first protrusion, which is connected to one end of the first connecting portion away from the first dust removal portion and protrudes from the first connecting portion in the second direction. One end of the first protrusion in the second direction is clamped between the fixing member and at least one of the clamping members, and the other end of the first protrusion in the second direction is clamped between the fixing member and at least one of the clamping members.

[0009] In an optional embodiment, the clamping member has a fixing part and a clamping part, the fixing part is fixedly connected to the fixing member, and the clamping part is spaced apart from the fixing member to define a clamping gap, and the first protrusion is clamped in the clamping gap.

[0010] In an optional embodiment, the fixing component further includes a fastener, the fixing member having a strip hole, the fastener passing through the strip hole and being fixedly connected to the fixing member and the connecting seat.

[0011] In an optional embodiment, the second dust removal component includes a second dust removal part and a second connecting part. The two ends of the second connecting part along the first direction are respectively fixed to the two connecting seats by the fixing component. The second dust removal part is connected to the end of the second connecting part along the second direction that is close to the first dust removal component. The end of the second dust removal part along the second direction that is away from the second connecting part is used to contact the other side of the electrode plate along the second direction.

[0012] In an optional embodiment, the second dust removal unit is a dust removal brush.

[0013] Secondly, this application provides an electrode feeding device, including: an electrode dust removal device as described in any of the foregoing embodiments.

[0014] The plate dust collector of this application has the following advantages: In the electrode plate dust removal device of this application, since the first dust removal component and the second dust removal component are spaced apart along the second direction, the electrode plate can be inserted between the first dust removal component and the second dust removal component, so that the front and back sides of the electrode plate face the first dust removal component and the second dust removal component respectively. Since the first dust removal component and the second dust removal component are respectively used to contact the two sides of the electrode plate along the second direction, when the electrode plate moves between the first dust removal component and the second dust removal component, the front and back sides of the electrode plate can be dusted by the first dust removal component and the second dust removal component respectively. Furthermore, since the two ends of the first dust removal component along the first direction are respectively fixed to the two connecting seats by fixing components, the first dust removal component extends and is fixed along the first direction by fixing components. Similarly, since the two ends of the second dust removal component along the second direction are respectively fixed to the two connecting seats by fixing components, the second dust removal component extends and is fixed along the second direction by fixing components. In this way, dust can be removed from all parts of the electrode plate along the first direction, thereby improving the dust removal effect on the electrode plate. Therefore, the electrode plate dust removal device of this application can remove dust from the electrode plate. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the electrode plate dust collector in this application is shown. Figure 1 ; Figure 2 A schematic diagram of the electrode plate dust collector in this application is shown. Figure 2 ; Figure 3 A schematic diagram of the structure of the fixing component and the first dust removal component in this application is shown; Figure 4 An exploded structural diagram of the fixing component and the first dust removal component in this application is shown; Figure 5 A schematic diagram of the structure of the second dust removal component in this application is shown.

[0017] Explanation of key component symbols: 100-Connector; 200 - Fixing component; 210 - Fixing element; 211 - Slotted hole; 220 - Clamping element; 221 - Fixing part; 222 - Clamping part; 230 - Clamping gap; 300 - Dust removal assembly; 310 - First dust removal component; 311 - First dust removal section; 312 - First connecting part; 313 - First protrusion; 320 - Second dust removal component; 321 - Second dust removal section; 322 - Second connecting part; 323 - Second protrusion; x - First direction; y - Second direction. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] In the description of this application, 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", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0020] 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 application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed 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 application according to the specific circumstances.

[0022] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] Reference Figure 1 as well as Figure 2 As shown, the electrode plate dust removal device involved in the embodiments of this application has a first direction x and a second direction y, the first direction x is perpendicular to the second direction y, and the electrode plate dust removal device includes: two connecting seats 100, a fixing component 200 and a dust removal component 300.

[0024] Specifically, the two connecting seats 100 are spaced apart along the first direction x; the dust removal assembly 300 includes a first dust removal component 310 and a second dust removal component 320, both of which extend along the first direction x. The two ends of the first dust removal component 310 along the first direction x are respectively fixed to the two connecting seats 100 by fixing components 200, and the two ends of the second dust removal component 320 along the first direction x are respectively fixed to the two connecting seats 100 by fixing components 200; wherein, the first dust removal component 310 and the second dust removal component 320 are spaced apart along the second direction y, and the first dust removal component 310 and the second dust removal component 320 are respectively used to contact the two sides of the electrode plate along the second direction y.

[0025] It should be noted that the first direction x is Figure 1 The direction indicated by x in the middle, and the second direction y is... Figure 1 The direction indicated by y in the middle.

[0026] In the electrode plate dust removal device of this application, since the first dust removal component 310 and the second dust removal component 320 are spaced apart along the second direction y, the electrode plate can be inserted between the first dust removal component 310 and the second dust removal component 320, so that the front and back sides of the electrode plate face the first dust removal component 310 and the second dust removal component 320 respectively. Since the first dust removal component 310 and the second dust removal component 320 are respectively used to contact the two sides of the electrode plate along the second direction y, when the electrode plate moves between the first dust removal component 310 and the second dust removal component 320, the front and back sides of the electrode plate can be dusted by the first dust removal component 310 and the second dust removal component 320 respectively. Furthermore, since the first dust removal component 310 is fixed to the two connecting seats 100 at both ends along the first direction x by the fixing components 200, the first dust removal component 310 extends and is fixed along the first direction x by the fixing components 200. Similarly, since the second dust removal component 320 is fixed to the two connecting seats 100 at both ends along the second direction y by the fixing components 200, the second dust removal component 320 extends and is fixed along the second direction y by the fixing components 200. In this way, dust can be removed from all parts of the electrode plate along the first direction x, thereby improving the dust removal effect on the electrode plate. Therefore, the electrode plate dust removal device of this application can remove dust from the electrode plate.

[0027] Reference Figure 3 as well as Figure 4 As shown, the first dust removal component 310 includes a first dust removal part 311 and a first connecting part 312. The two ends of the first connecting part 312 along the first direction x are respectively fixed to the two connecting seats 100 by the fixing component 200. The first dust removal part 311 is connected to the end of the first connecting part 312 along the second direction y that is close to the second dust removal component 320. The end of the first dust removal part 311 along the second direction y that is away from the first connecting part 312 is used to contact the side of the electrode plate along the second direction y.

[0028] In this embodiment, since the two ends of the first connecting part 312 along the first direction x are respectively fixed to the two connecting seats 100 by the fixing component 200, the fixing component 200 and the first dust removal part 311 can be connected through the first connecting part 312, thereby fixing the first dust removal component 310 to the connecting seat 100. Since the first dust removal part 311 is connected to the end of the first connecting part 312 along the second direction y that is close to the second dust removal component 320, and the end of the first dust removal part 311 along the second direction y that is away from the first connecting part 312 is used to contact the side of the electrode plate along the second direction y, the first dust removal part 311 can remove dust from the surface of the electrode plate that is close to the first dust removal component 310.

[0029] Specifically, in some embodiments, the first dust removal part 311 is a dust removal brush.

[0030] In this embodiment, dust on the surface of the electrode plate can be brushed off by a dust removal brush during the movement of the electrode plate, thereby achieving dust removal of the electrode plate. The dust removal brush is detachably fixed to the first connecting part 312 to fix the dust removal brush and facilitate the replacement of the dust removal brush.

[0031] Specifically, in some other embodiments, the first dust removal part 311 may also be a dust removal sticking roller, which is tumblingly connected to the connecting part so that the dust removal sticking roller rolls on the surface of the electrode plate during the movement of the electrode plate, thereby achieving dust removal of the electrode plate.

[0032] Specifically, in some other embodiments, the first dust removal unit 311 may also be a vacuum adsorption dust removal unit, so as to remove dust from the surface of the electrode plate by vacuum adsorption during the movement of the electrode plate.

[0033] Specifically, in some other embodiments, the first dust removal unit 311 may also be a combination of any two or more of the following: a dust removal brush, a dust removal roller, an electrostatic brush, a scraper, a silicone head, an airflow nozzle, and a vibration element.

[0034] Reference Figure 3 as well as Figure 4 As shown, the fixing assembly 200 includes a fixing member 210 and a plurality of clamping members 220. The fixing member 210 is connected to the connecting seat 100, and each clamping member 220 is connected to the fixing member 210. The first dust removal member 310 is clamped between the fixing member 210 and at least one clamping member 220 at one end along the second direction y, and the second dust removal member 320 is clamped between the fixing member 210 and at least one clamping member 220 at the other end along the second direction y.

[0035] In this embodiment, the first dust removal component 310 can be fixed at both ends along the first direction x to at least one fixing component 210 by the clamping component 220, so that the two ends of the first dust removal component 310 along the first direction x can be connected to a connecting seat 100 by the fixing component 210, thereby fixing the first dust removal component 310; similarly, the second dust removal component 320 can be fixed at both ends along the first direction x to at least one fixing component 210 by the clamping component 220, so that the two ends of the second dust removal component 320 along the first direction x can be connected to a connecting seat 100 by the fixing component 210, thereby fixing the second dust removal component 320.

[0036] Continue to refer to Figure 3 as well as Figure 4As shown, the first dust removal component 310 also has a first protrusion 313, which is connected to one end of the first connecting portion 312 away from the first dust removal portion 311 and protrudes from the first connecting portion 312 along the second direction y. One end of the first protrusion 313 along the second direction y is clamped between the fixing member 210 and at least one clamping member 220, and the other end of the first protrusion 313 along the second direction y is clamped between the fixing member 210 and at least one clamping member 220.

[0037] In this embodiment, since the first protrusion 313 is connected to the end of the first connecting portion 312 away from the first dust removal portion 311 and protrudes from the first connecting portion 312 along the second direction y, one end of the first protrusion 313 along the second direction y can be clamped between the fixing member 210 and at least one clamping member 220, and the other end of the first protrusion 313 along the second direction y can be clamped between the fixing member 210 and at least one clamping member 220, thereby fixing the first connecting portion 312 and further fixing the first dust removal member 310.

[0038] Reference Figure 4 As shown, the clamping member 220 has a fixing part 221 and a clamping part 222. The fixing part 221 is fixedly connected to the fixing member 210, and the clamping part 222 is spaced apart from the fixing member 210 to define a clamping gap 230. The first protrusion 313 is clamped in the clamping gap 230.

[0039] In this embodiment, since the fixing part 221 is fixedly connected to the fixing member 210, the clamping part 222 and the fixing member 210 can be relatively fixed so that the first protrusion 313 is clamped in the clamping gap 230 between the clamping part 222 and the fixing member 210, thereby fixing the first protrusion 313 and further fixing the first dust removal member 310.

[0040] Specifically, in this embodiment, the clamping members 220 at both ends of the first protrusion 313 along the second direction y are all located outside the first protrusion 313, so as to form a symmetrical covering and clamping of the first protrusion 313, clamping the first protrusion 313 between the clamping members 220 at both ends along the second direction y.

[0041] Specifically, in this embodiment, the fixing part 221 is detachably fixed to the fixing member 210 so that the clamping of the first protrusion 313 and the disassembly of the first protrusion 313 can be achieved by assembling and disassembling the fixing part 221.

[0042] Continue to refer to Figure 4 As shown, the fixing component 200 also includes a fastener. The fixing member 210 has a strip hole 211. The fastener passes through the strip hole 211 and is fixedly connected to the fixing member 210 and the connecting seat 100.

[0043] In this embodiment, since the fixing member 210 is provided with a strip hole 211, the fixing position of the fixing member 210 on the connecting seat 100 can be adjusted by adjusting the position of the fastener in the strip hole 211, thereby adjusting the position of the first dust removal member 310 and / or the second dust removal member 320, thereby adjusting the spacing distance between the first dust removal member 310 and the second dust removal member 320 in the second direction y, so that the electrode plate dust removal device of this application can be applied to electrode plates of different thicknesses.

[0044] Reference Figure 5 As shown, the second dust removal component 320 includes a second dust removal part 321 and a second connecting part 322. The two ends of the second connecting part 322 along the first direction x are respectively fixed to the two connecting seats 100 by the fixing assembly 200. The second dust removal part 321 is connected to the end of the second connecting part 322 along the second direction y that is close to the first dust removal component 310. The end of the second dust removal part 321 along the second direction y that is away from the second connecting part 322 is used to contact the other side of the electrode plate along the second direction y.

[0045] In this embodiment, since the two ends of the second connecting part 322 along the first direction x are respectively fixed to the two connecting seats 100 by the fixing component 200, the fixing component 200 and the second dust removal part 321 can be connected through the second connecting part 322, thereby fixing the first dust removal component 310 to the connecting seat 100. Since the second dust removal part 321 is connected to the end of the second connecting part 322 along the second direction y that is close to the first dust removal component 310, and the end of the second dust removal part 321 along the second direction y that is away from the second connecting part 322 is used to contact the other side of the electrode plate along the second direction y, the second dust removal part 321 can remove dust from the surface of the electrode plate that is close to the second dust removal component 320.

[0046] Continue to refer to Figure 5 As shown, the second dust removal component 320 also has a second protrusion 323. The second protrusion 323 is connected to one end of the second connecting portion 322 away from the second dust removal portion 321 and protrudes from the second connecting portion 322 along the second direction y. One end of the second protrusion 323 along the second direction y is clamped between the fixing member 210 and at least one clamping member 220. The other end of the second protrusion 323 along the second direction y is clamped between the fixing member 210 and at least one clamping member 220. The second protrusion 323 is clamped in the clamping gap 230 between the clamping portion 222 and the fixing member 210.

[0047] In this embodiment, since the second protrusion 323 is connected to the end of the second connecting portion 322 away from the first dust removal portion 311 and protrudes from the second connecting portion 322 along the second direction y, one end of the second protrusion 323 along the second direction y can be clamped between the fixing member 210 and at least one clamping member 220, and the other end of the second protrusion 323 along the second direction y can be clamped between the fixing member 210 and at least one clamping member 220, thereby fixing the second connecting portion 322 and further fixing the second dust removal member 320.

[0048] Specifically, in some embodiments, the second dust removal section 321 is a dust removal brush.

[0049] In this embodiment, dust on the surface of the electrode plate can be brushed off by a dust removal brush during the movement of the electrode plate, thereby achieving dust removal of the electrode plate. The dust removal brush is detachably fixedly connected to the second connecting part 322 to fix the dust removal brush and facilitate the replacement of the dust removal brush.

[0050] Specifically, in some other embodiments, the second dust removal part 321 may also be a dust removal sticking roller, which is tumblingly connected to the connecting part so that the dust removal sticking roller rolls on the surface of the electrode plate during the movement of the electrode plate, thereby achieving dust removal of the electrode plate.

[0051] Specifically, in some other embodiments, the second dust removal unit 321 may also be a vacuum adsorption dust removal unit, so as to remove dust from the surface of the electrode plate by vacuum adsorption during the movement of the electrode plate.

[0052] Specifically, in some other embodiments, the second dust removal unit 321 may also be a combination of any two or more of the following: dust removal brush, dust removal roller, electrostatic brush, scraper, silicone head, airflow nozzle, and vibration element.

[0053] The electrode feeding equipment involved in the embodiments of this application includes: the above-mentioned electrode dust removal device.

[0054] In the electrode plate feeding device of this application, since the aforementioned electrode plate dust removal device can remove dust from the electrode plate, the electrode plate feeding device of this application can achieve high-quality conveying of the electrode plate.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A plate dust removal device, characterized in that, The electrode plate dust removal device includes a first direction and a second direction, wherein the first direction is perpendicular to the second direction. Two connecting seats are spaced apart along the first direction; Fixed components; A dust removal assembly includes a first dust removal component and a second dust removal component. Both the first dust removal component and the second dust removal component extend along the first direction. The two ends of the first dust removal component along the first direction are respectively fixed to the two connecting seats by the fixing component. The two ends of the second dust removal component along the first direction are respectively fixed to the two connecting seats by the fixing component. The first dust removal component and the second dust removal component are spaced apart along the second direction, and the first dust removal component and the second dust removal component are respectively used to contact the two sides of the electrode plate along the second direction.

2. The electrode plate dust removal device according to claim 1, characterized in that, The first dust removal component includes a first dust removal part and a first connecting part. The two ends of the first connecting part along the first direction are respectively fixed to the two connecting seats by the fixing component. The first dust removal part is connected to the end of the first connecting part along the second direction that is close to the second dust removal component. The end of the first dust removal part along the second direction that is away from the first connecting part is used to contact the side of the electrode plate along the second direction.

3. The electrode plate dust removal device according to claim 2, characterized in that, The first dust removal part is a dust removal brush.

4. The dust removal device according to claim 2, characterized in that, The fixing component includes a fixing member and a plurality of clamping members. The fixing member is connected to the connecting seat, and each of the clamping members is connected to the fixing member. One end of the first dust removal member along the second direction is clamped between the fixing member and at least one of the clamping members, and the other end of the second dust removal member along the second direction is clamped between the fixing member and at least one of the clamping members.

5. The dust removal device according to claim 4, characterized in that, The first dust removal component also has a first protrusion, which is connected to one end of the first connecting portion away from the first dust removal portion and protrudes from the first connecting portion along the second direction. One end of the first protrusion along the second direction is clamped between the fixing member and at least one of the clamping members, and the other end of the first protrusion along the second direction is clamped between the fixing member and at least one of the clamping members.

6. The dust removal device according to claim 5, characterized in that, The clamping member has a fixing part and a clamping part. The fixing part is fixedly connected to the fixing member, and the clamping part is spaced apart from the fixing member to define a clamping gap. The first protrusion is clamped in the clamping gap.

7. The dust removal device according to claim 4, characterized in that, The fixing component also includes a fastener, the fixing member has a strip hole, the fastener passes through the strip hole and is fixedly connected to the fixing member and the connecting seat.

8. The electrode plate dust removal device according to claim 1, characterized in that, The second dust removal component includes a second dust removal part and a second connecting part. The two ends of the second connecting part along the first direction are respectively fixed to the two connecting seats by the fixing component. The second dust removal part is connected to the end of the second connecting part along the second direction that is close to the first dust removal component. The end of the second dust removal part along the second direction that is away from the second connecting part is used to contact the other side of the electrode plate along the second direction.

9. The electrode plate dust removal device according to claim 8, characterized in that, The second dust removal section consists of dust removal brushes.

10. A plate feeding device, characterized in that, include: The plate dust removal device as described in any one of claims 1-9.

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