Dust removal device, and cutting and stacking integrated machine

Abstract

A dust removal device and a cutting and stacking integrated machine. The dust removal device (10) comprises a conveying mechanism (300), a first dust blowing and sweeping mechanism (400) and a first hollowed-out isolation mechanism (500), wherein the conveying mechanism (300) is configured to convey a material; the first dust blowing and sweeping mechanism (400) is provided with a first dust removal surface (410) located on one side of a material conveying path; and the first hollowed-out isolation mechanism (500) is located on the side of the first dust removal surface (410) close to the material, such that the first hollowed-out isolation mechanism (500) can be located between the first dust removal surface (410) and the material. Since the first hollowed-out isolation mechanism (500) is located between the first dust removal surface (410) and the material, even if the material deforms under the effect of an airflow, the first dust removal surface (410) can also be prevented from making direct contact with the material, thereby avoiding the problems of damage to the material, such as that caused by the material colliding with and / or being scratched by the first dust blowing and sweeping mechanism.

Description

Dust removal device and cutting and stacking machine Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a dust removal device and a cutting and stacking integrated machine. Background Art

[0002] There are two main methods for removing dust from the surfaces of strips or individual sheets of materials like lithium battery electrodes: contact dust removal (e.g., using a brush to remove dust) and non-contact dust removal (e.g., using an air knife to blow away dust). Non-contact dust removal is generally considered to be more protective of the material and prevent damage than contact dust removal. However, in practice, it has been found that during airflow-based dust removal, the material can deform due to the airflow, leading to damage such as being struck and / or scratched by the dust removal mechanism.

[0003] Utility Model Content

[0004] The utility model provides a dust removal device, which aims to solve the problem of material damage when blowing and dust removal are performed on the materials.

[0005] The utility model provides a dust removal device, comprising:

[0006] A conveying mechanism for conveying materials;

[0007] a first blowing and dust removal mechanism having a first dust removal surface located on one side of a conveying path of the material; and

[0008] The first hollow isolation mechanism is located on a side of the first dust removal surface close to the material, so that the first hollow isolation mechanism can be located between the first dust removal surface and the material.

[0009] In one embodiment, the conveying mechanism includes a conveying belt for conveying the material, and the first hollow isolation mechanism is a part of the conveying belt.

[0010] In one embodiment, the conveying mechanism also includes multiple conveying rollers, the conveying belt is a closed-loop structure, and the multiple conveying rollers are distributed inside and outside the closed-loop structure to support the conveying belt. The first blowing and dust removal mechanism is located in the closed-loop structure and between two adjacent conveying rollers.

[0011] In one embodiment, the conveyor belt is a belt, and the multiple conveyor rollers include four inner conveyor rollers located inside the conveyor belt and two outer conveyor rollers located outside the conveyor belt, the four inner conveyor rollers include two main drive rollers, a belt passing roller and a belt drive roller, the two main drive rollers are arranged at intervals on the conveying path of the material, one belt passing roller and one belt drive roller are arranged at intervals in a direction parallel to the conveying path of the material, the two main drive rollers are closer to the material than one belt passing roller and one belt drive roller, on the conveying path of the material, the belt passing roller is arranged opposite to the main drive roller located upstream, and the belt drive roller is arranged downstream of the main drive roller located downstream, the two outer conveyor rollers include a belt tensioning roller located between the belt passing roller and the belt drive roller and a belt passing roller located between the belt drive roller and the main drive roller, and the first blowing and dust removal mechanism is located between the two main drive rollers.

[0012] In one embodiment, it also includes a second blowing and dust removal mechanism and a second hollow isolation mechanism, the second blowing and dust removal mechanism has a second dust removal surface located on the other side of the conveying path of the material, the first dust removal surface and the second dust removal surface are arranged opposite to each other and form a dust removal gap between the first dust removal surface and the second dust removal surface for the material to pass through, and the second hollow isolation mechanism is located on the side of the second dust removal surface close to the material, so that the second hollow isolation mechanism can be located between the second dust removal surface and the material.

[0013] In one embodiment, the first dust removal surface and the second dust removal surface are arranged opposite to each other.

[0014] In one embodiment, the distance between the first dust removal surface and the second dust removal surface is adjustable to adjust the size of the dust removal gap.

[0015] In one embodiment, the first blowing and dust removal mechanism and the second blowing and dust removal mechanism are both ultrasonic dust removal heads.

[0016] In one embodiment, the first dust removal surface is a contoured arc surface or a plane, and the second dust removal surface is a contoured arc surface or a plane.

[0017] In one embodiment, the first hollow isolation mechanism and the second hollow isolation mechanism are both grid mechanisms.

[0018] In one embodiment, the first hollow isolation mechanism is made of Teflon, polyurethane, polyvinyl chloride, polyethylene or rubber, and the second hollow isolation mechanism is made of Teflon, polyurethane, polyvinyl chloride, polyethylene or rubber.

[0019] In one embodiment, the first dust removal surface has a blowing port and an air suction port, the blowing port is used to blow out dust removal airflow to the material, and the air suction port is used to suck away dust on the material, and the structure of the second dust removal surface is the same as that of the first dust removal surface.

[0020] In one embodiment, the blowing port includes a first suction port and a second suction port, and the first suction port, the blowing port and the second suction port are arranged in sequence on the conveying path of the material.

[0021] In one embodiment, a limiting mechanism is further provided opposite to the conveying mechanism, and the limiting mechanism is used to limit the side of the material away from the first hollow isolation mechanism to prevent the material from moving toward the side away from the first hollow isolation mechanism.

[0022] In one embodiment, the limiting mechanism can elastically abut against the material.

[0023] In one embodiment, the limiting mechanism includes a limiting conveyor belt for contacting a side of the material away from the first hollow isolation mechanism, and the second hollow isolation mechanism is a part of the limiting conveyor belt.

[0024] In one embodiment, the limiting mechanism also includes multiple limiting rollers, the limiting conveyor belt is a closed-loop structure, and the multiple limiting rollers are distributed inside and outside the closed-loop structure to support the limiting conveyor belt. The second blowing and dust removal mechanism is located inside the limiting conveyor belt and between two adjacent limiting rollers.

[0025] In one embodiment, the limiting conveyor belt is a belt, and the plurality of limiting rollers include four inner limiting rollers located inside the limiting conveyor belt and two outer limiting rollers located outside the limiting conveyor belt, the four inner limiting rollers include two follower pressure rollers, a belt passing roller and a belt driving roller, the two follower pressure rollers are arranged at intervals on the conveying path of the material, one belt passing roller and one belt driving roller are arranged at intervals in a direction parallel to the conveying path of the material, the two follower pressure rollers are closer to the material than one belt passing roller and one belt driving roller, on the conveying path of the material, the belt passing roller is arranged opposite to the follower pressure roller located upstream, and the belt driving roller is arranged downstream of the follower pressure roller located downstream, the two outer limiting rollers include a belt tensioning roller located between the belt passing roller and the belt driving roller, and a belt passing roller located between the belt driving roller and the follower pressure roller, and the second blowing and dust removal mechanism is located between the two follower pressure rollers.

[0026] In one embodiment, a reference plate is further included, and the conveying mechanism, the first blowing and dust removal mechanism, the first hollow isolation mechanism, the second blowing and dust removal mechanism, the second hollow isolation mechanism and the limiting mechanism are all arranged on the reference plate.

[0027] The utility model also provides a cutting and stacking machine, which comprises the above-mentioned dust removal device.

[0028] In the above-described dust removal device, when the conveying mechanism conveys material to the first dust removal surface facing the first purge dust removal mechanism, the dust removal airflow from the first dust removal surface passes through the first hollow isolation mechanism and acts on the material, thereby purge and remove dust from the material. Furthermore, because the first hollow isolation mechanism is located between the first dust removal surface and the material, even if the material is deformed by the airflow, direct contact between the first dust removal surface and the material is avoided, thereby preventing material damage such as being struck and / or scratched by the first purge dust removal mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a front view of a dust removal device according to an embodiment of the present invention;

[0030] FIG2 is a right side view of the dust removal device shown in FIG1 ;

[0031] FIG3 is a top view of the dust removal device shown in FIG1 . DETAILED DESCRIPTION

[0032] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] As shown in Figures 1 to 3, an embodiment of the present invention provides a dust removal device 10. The dust removal device 10 includes a conveying mechanism 300, a first purge dust removal mechanism 400, and a first hollow isolation mechanism 500.

[0036] The conveying mechanism 300 is used to convey the material 20. The first purge dust removal mechanism 400 has a first dust removal surface 410 located on one side of the conveying path of the material 20. In other words, the first purge dust removal mechanism 400 has the first dust removal surface 410 located next to the conveying path of the material 20. The first hollow isolation mechanism 500 is located on the side of the first dust removal surface 410 close to the material 20, so that the first hollow isolation mechanism 500 can be located between the first dust removal surface 410 and the material 20.

[0037] In the dust removal device 10 described above, when the conveying mechanism 300 conveys the material 20 to the first dust removal surface 410 facing the first purge dust removal mechanism 400, the dust removal airflow from the first dust removal surface 410 passes through the first hollow isolation mechanism 500 and acts on the material 20, thereby purge and remove dust from the material 20. Furthermore, because the first hollow isolation mechanism 500 is located between the first dust removal surface 410 and the material 20, even if the material 20 is deformed by the airflow, direct contact between the first dust removal surface 410 and the material 20 is avoided, thereby preventing damage to the material 20, such as being struck and / or scratched by the first purge dust removal mechanism 400.

[0038] In this embodiment, the first dust removal surface 410 has both a blowing port and an air suction port. The blowing port is used to blow a dust removal airflow toward the material 20. The air suction port is used to remove dust from the material 20. The blowing port and the air suction port work together to remove dust from the material 20. This not only achieves better dust removal, but also prevents dust from being scattered throughout the dust removal device 10. It is understood that in other embodiments, the first dust removal surface 410 may have only a blowing port, where the impact of the airflow removes dust from the material 20.

[0039] It should be noted that when a dust removal device having both a blowing port and a suction port on the dust removal surface is working, the material may be folded by the blowing port on the dust removal surface, causing the material to wrinkle and deform. The material may also be adsorbed by the suction port on the dust removal surface, causing the material to stagnate (unable to continue to be transported along the conveying path) and causing the material to wrinkle and deform, which in turn leads to material damage problems such as the material being hit and / or scratched by the dust removal mechanism.

[0040] In this embodiment, the first dust removal surface 410 has a first air suction port, an air blowing port, and a second air suction port. The first air suction port, the air blowing port, and the second air suction port are arranged in sequence on the conveying path of the material 20. In this way, the dust on the material 20 that has a lesser adhesion to the material 20 (that is, the dust with a greater degree of looseness) can be first sucked away by the first air suction port, while the dust on the material 20 that has a greater adhesion to the material 20 (that is, the dust with a lesser degree of looseness) can first be shaken through the air blowing port to become dust with a lesser adhesion to the material 20 (that is, the dust with a greater degree of looseness) and then be sucked away by the second air suction port. Therefore, the above-mentioned dust removal device 10 has a better dust removal effect. It can be understood that in other embodiments, the first dust removal surface 410 can also have only one of the first air suction port and the second air suction port and the air blowing port.

[0041] In this embodiment, the first purge dust removal mechanism 400 is an ultrasonic dust removal head. Thus, utilizing ultrasonic dust removal can enhance the dust removal effect of the dust removal device 10. It is understood that in other embodiments, the first purge dust removal mechanism 400 can also be a device capable of ejecting high-pressure airflow. Specifically, in this embodiment, the first dust removal surface 410 can be contoured to a circular arc surface or a flat surface.

[0042] In this embodiment, the conveying mechanism 300 includes a conveyor belt 310 for conveying the material 20. The first hollow isolation mechanism 500 is part of the conveyor belt 310. This not only simplifies the structure of the dust removal device 10, but also allows the first hollow isolation mechanism 500 to move in the same direction and at the same speed as the material 20, thereby preventing the material 20 from contacting the first hollow isolation mechanism 500 and causing damage. It is understood that in other embodiments, the first hollow isolation mechanism 500 may be independent of the conveyor belt 310. For example, the first hollow isolation mechanism 500 may be located on the side of the conveyor belt 310 away from the material 20, while the first dust removal surface 410 may be located on the side of the first hollow isolation mechanism 500 away from the material 20.

[0043] In this embodiment, the conveying mechanism 300 also includes a plurality of conveying rollers 320. The conveying conveyor belt 310 is a closed-loop structure. A plurality of conveying rollers 320 are distributed inside and outside the closed-loop structure to support the conveying conveyor belt 310. The first blowing and dust removal mechanism 400 is located within the closed-loop structure and between two adjacent conveying rollers 320 (at this time, there is no conveying roller 320 between the first blowing and dust removal mechanism 400 and the first hollow isolation mechanism 500). In this way, the conveying roller 320 can be prevented from blocking the first dust removal surface 410, which not only facilitates the dust removal airflow to act on the material 20, but also facilitates the adjustment of the distance between the first dust removal surface 410 and the first hollow isolation mechanism 500. It can be understood that in other embodiments, there may also be a conveying roller 320 between the first blowing and dust removal mechanism 400 and the first hollow isolation mechanism 500.

[0044] Specifically, in this embodiment, the conveyor belt 310 is a belt. The plurality of conveyor rollers 320 include four inner conveyor rollers located within the conveyor belt 310 and two outer conveyor rollers located outside the conveyor belt 310. The four inner conveyor rollers include two main drive rollers 322a, a belt feed roller 322b, and a belt drive roller 322c. The two main drive rollers 322a are spaced apart along the conveying path of the material 20, while the belt feed roller 322b and the belt drive roller 322c are spaced apart and parallel to the conveying path of the material 20. The two main drive rollers 322a are closer to the material 20 than the belt feed roller 322b and the belt drive roller 322c. Along the conveying path of the material 20, the belt feed roller 322b is positioned directly opposite the upstream main drive roller 322a, while the belt drive roller 322c is positioned downstream of the downstream main drive roller 322a. The two outer conveying rollers include a belt tensioning roller 324a located between the belt passing roller 322b and the belt driving roller 322c and a belt passing roller 324b located between the belt driving roller 322c and the main driving roller 322a. The first purge dust removal mechanism 400 is located between the two main driving rollers 322a.

[0045] In this embodiment, the first hollow isolation mechanism 500 is a grid structure, meaning that the conveyor belt 310 is a grid belt. This facilitates the manufacture of the first hollow isolation mechanism 500. It is understood that in other embodiments, the hollow pattern on the first hollow isolation mechanism 500 is not limited to a grid pattern and can be any shape. In this embodiment, the material of the first hollow isolation mechanism 500 can be Teflon, polyurethane (PU), polyvinyl chloride (PVC), polyethylene (PE), rubber, etc.

[0046] In this embodiment, the dust removal device 10 further includes a second purge dust removal mechanism 600 having a second dust removal surface 610 located on the other side of the conveying path of the material 20. Specifically, the second purge dust removal mechanism 600 has a second dust removal surface 610 located adjacent to the conveying path of the material 20. The first dust removal surface 410 and the second dust removal surface 610 are disposed opposite each other, forming a dust removal gap between the first dust removal surface 410 and the second dust removal surface 610 for the material 20 to pass through. The first dust removal surface 410 and the second dust removal surface 610 can perform dust removal on both surfaces of the material 20, achieving double-sided dust removal. This avoids the material 20 having to pass through at least two dust removal stations for double-sided dust removal, thereby preventing secondary contamination of the material 20. It is understood that in other embodiments, the second purge dust removal mechanism 600 may be omitted. In this case, the first dust removal surface 410 may be used to first perform dust removal on one side of the material 20, followed by the first dust removal surface 410 to perform dust removal on the other side of the material 20.

[0047] In this embodiment, the structure of the second blowing and dust removal mechanism 600 is the same as that of the first blowing and dust removal mechanism 400, and will not be repeated here.

[0048] In this embodiment, the dust removal device 10 further includes a second hollow isolation mechanism 700. The second hollow isolation mechanism 700 is located on the side of the second dust removal surface 610 close to the material 20, so that the second hollow isolation mechanism 700 can be located between the second dust removal surface 610 and the material 20. In the dust removal device 10 described above, when the conveying mechanism 300 conveys the material 20 to the second dust removal surface 610 facing the second purge dust removal mechanism 600, the dust removal airflow blown out from the second dust removal surface 610 passes through the second hollow isolation mechanism 700 and acts on the material 20, thereby purge and dust removal of the material 20. Furthermore, because the second hollow isolation mechanism 700 is located between the second dust removal surface 610 and the material 20, even if the material 20 is deformed by the airflow, direct contact between the second dust removal surface 610 and the material 20 is avoided, thereby preventing damage to the material 20, such as being struck and / or scratched by the second purge dust removal mechanism 700.

[0049] In this embodiment, the first dust removal surface 410 and the second dust removal surface 610 are disposed opposite each other. This allows the dust removal device 10 to have a smaller size along the conveying path of the material 20. It is understood that in other embodiments, the first dust removal surface 410 may be upstream of the conveying path of the material 20 relative to the second dust removal surface 610, or vice versa, the first dust removal surface 410 may be downstream of the conveying path of the material 20 relative to the second dust removal surface 610.

[0050] In this embodiment, the distance between the first dust removal surface 410 and the second dust removal surface 610 is adjustable to adjust the size of the dust removal gap. This allows the dust removal device 10 to be adapted to and dust removed from materials 20 of varying sizes. It will be appreciated that in other embodiments, the distance between the first dust removal surface 410 and the second dust removal surface 610 may be fixed.

[0051] In this embodiment, the dust removal device 10 further includes a limiting mechanism 800 disposed opposite the conveying mechanism 300. The limiting mechanism 800 is used to limit the material 20 on the side away from the first hollow isolation mechanism 500, thereby preventing the material 20 from moving toward the side away from the first hollow isolation mechanism 500. Thus, the limiting mechanism 800, in conjunction with the conveying mechanism 300, ensures smooth conveyance of the material 20, thereby facilitating simultaneous conveyance of the material 20 by the conveying mechanism 300 and purging and dust removal of the material 20 by the first purge and dust removal mechanism 400. It will be appreciated that in other embodiments, a negative pressure mechanism may be provided on the conveying mechanism 300, utilizing negative pressure to more stably adhere the material 20 to the conveying mechanism 300, thereby also ensuring smooth conveyance of the material 20. In this case, the first hollow isolation mechanism 500 may be located on the side of the conveyor belt 310 away from the material 20, while the first dust removal surface 410 is located on the side of the first hollow isolation mechanism 500 away from the material 20.

[0052] In this embodiment, the limiting mechanism 800 can elastically (floatingly) abut against the material 20. Thus, the limiting mechanism 800 can press the material 20, allowing the material 20 to be transported smoothly without being crushed. It is understood that in other embodiments, the limiting mechanism 800 can also be spaced apart from the material 20.

[0053] In this embodiment, the limiting mechanism 800 includes a limiting conveyor belt 810 for contacting the side of the material 20 away from the first hollow isolation mechanism 500. The second hollow isolation mechanism 700 is a portion of the limiting conveyor belt 810. This not only simplifies the structure of the dust removal device 10 but also facilitates the smooth transportation of the material 20. It will be understood that in other embodiments, the second hollow isolation mechanism 700 can also be independent of the limiting mechanism 800. For example, the limiting mechanism 800 includes two limiting blocks for contacting the material 20, and the second hollow isolation mechanism 700 and the second purge dust removal mechanism 600 are disposed between the two limiting blocks.

[0054] In this embodiment, the limiting mechanism 800 also includes a plurality of limiting rollers 820. The limiting conveyor belt 810 is a closed loop structure. A plurality of limiting rollers 820 are distributed inside and outside the closed loop structure to support the limiting conveyor belt 810. The second blowing and dust removal mechanism 600 is located inside the limiting conveyor belt 810 and between two adjacent limiting rollers 820. In this way, the limiting rollers 820 can be prevented from blocking the second dust removal surface 610, which not only facilitates the dust removal airflow to act on the material 20, but also facilitates the adjustment of the distance between the second dust removal surface 610 and the second hollow isolation mechanism 700. It can be understood that in other embodiments, a limiting roller 820 can also be provided between the second blowing and dust removal mechanism 600 and the second hollow isolation mechanism 700.

[0055] Specifically, in this embodiment, the limiting conveyor belt 810 is a belt. The plurality of limiting rollers 820 include four inner limiting rollers located within the limiting conveyor belt 810 and two outer limiting rollers located outside the limiting conveyor belt 810. The four inner limiting rollers include two follower pressure rollers 822a, a belt roller 822b, and a belt drive roller 822c. The two follower pressure rollers 822a are spaced apart along the conveying path of the material 20, while the belt roller 822b and the belt drive roller 822c are spaced apart and parallel to the conveying path of the material 20. The two follower pressure rollers 822a are closer to the material 20 than the belt roller 822b and the belt drive roller 822c. Along the conveying path of the material 20, the belt roller 822b is positioned directly opposite the upstream follower pressure roller 822a, while the belt drive roller 822c is positioned downstream of the downstream follower pressure roller 822a. The two outer limiting rollers include a belt tensioning roller 824a located between the belt passing roller 822b and the belt driving roller 822c, and a belt passing roller 824b located between the belt driving roller 822c and the follower pressure roller 822a. The second purge dust removal mechanism 600 is located between the two follower pressure rollers 822a.

[0056] In this embodiment, the structure of the second hollow isolation mechanism 700 is the same as that of the first hollow isolation mechanism 500, and a repeated description thereof will not be given here.

[0057] In this embodiment, the dust removal device 10 further includes a reference plate 900 . The conveying mechanism 300 , the first purge dust removal mechanism 400 , the first hollow isolation mechanism 500 , the second purge dust removal mechanism 600 , the second hollow isolation mechanism 700 and the limiting mechanism 800 are all provided on the reference plate 900 .

[0058] Specifically, in this embodiment, both follower pressure rollers 822a are coated with an elastic outer layer. Thus, the position-limiting conveyor belt 810 and the elastic outer layer can constitute an elastic pressure member, thereby enabling the position-limiting mechanism 800 to elastically contact the material 20. The elastic outer layer can be a rubber layer. It is understood that in other embodiments, the two follower pressure rollers 822a can also be connected to the reference plate 900 via elastic members. Thus, the elastic member, the follower pressure rollers 822a, and the position-limiting conveyor belt 810 can constitute an elastic pressure member, thereby enabling the position-limiting mechanism 800 to elastically contact the material 20.

[0059] Specifically, in this embodiment, at least one of the belt rollers 322b, 324b, 822b, and 824b is rotatably connected to the reference plate 900. This allows the dust removal device 10 to be smaller. This is because, compared to a configuration where all rollers are fixed, having at least one rotatable roller facilitates belt transmission, thereby reducing the number of drive rollers required to be driven by the drive mechanism, and thus reducing the size of the dust removal device 10.

[0060] The present invention also provides a cutting and laminating machine. The cutting and laminating machine includes the aforementioned dust removal device 10. Specifically, in this embodiment, the material 20 is a lithium battery electrode in the form of a strip or individual sheet. It is understood that in other embodiments, the dust removal device 10 can also be applied to other devices. In this case, the material 20 can be various types of strip-shaped or individual sheet-shaped materials 20, for example, optical sheets.

[0061] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by utilizing the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A dust removal device, characterized in that: include: A conveying mechanism for conveying materials; a first blowing and dust removal mechanism having a first dust removal surface located on one side of a conveying path of the material; as well as The first hollow isolation mechanism is located on a side of the first dust removal surface close to the material, so that the first hollow isolation mechanism can be located between the first dust removal surface and the material.

2. The dust removal device according to claim 1, characterized in that: The conveying mechanism includes a conveying belt for conveying the material, and the first hollow isolation mechanism is a part of the conveying belt.

3. The dust removal device according to claim 2, characterized in that: The conveying mechanism also includes multiple conveying rollers, and the conveying belt is a closed-loop structure. The multiple conveying rollers are distributed inside and outside the closed-loop structure to support the conveying belt. The first blowing and dust removal mechanism is located in the closed-loop structure and between two adjacent conveying rollers.

4. The dust removal device according to claim 3, characterized in that: The conveyor belt is a belt, and the multiple conveyor rollers include four inner conveyor rollers located inside the conveyor belt and two outer conveyor rollers located outside the conveyor belt. The four inner conveyor rollers include two main drive rollers, a belt passing roller and a belt drive roller. The two main drive rollers are arranged at intervals on the conveying path of the material, and one belt passing roller and one belt drive roller are arranged at intervals in a direction parallel to the conveying path of the material. The two main drive rollers are closer to the material than one belt passing roller and one belt drive roller. On the conveying path of the material, the belt passing roller is arranged opposite to the main drive roller located upstream, and the belt drive roller is arranged downstream of the main drive roller located downstream. The two outer conveyor rollers include a belt tensioning roller located between the belt passing roller and the belt drive roller and a belt passing roller located between the belt drive roller and the main drive roller. The first blowing and dust removal mechanism is located between the two main drive rollers.

5. The dust removal device according to claim 1, wherein: It also includes a second blowing and dust removal mechanism and a second hollow isolation mechanism, the second blowing and dust removal mechanism has a second dust removal surface located on the other side of the material conveying path, the first dust removal surface and the second dust removal surface are arranged opposite to each other and form a dust removal gap between the first dust removal surface and the second dust removal surface for the material to pass through, and the second hollow isolation mechanism is located on the side of the second dust removal surface close to the material, so that the second hollow isolation mechanism can be located between the second dust removal surface and the material.

6. The dust removal device according to claim 5, characterized in that: The first dust removal surface and the second dust removal surface are arranged opposite to each other.

7. The dust removal device according to claim 5, characterized in that: The distance between the first dust removal surface and the second dust removal surface can be adjusted to adjust the size of the dust removal gap.

8. The dust removal device according to claim 5, characterized in that: The first blowing and dust removal mechanism and the second blowing and dust removal mechanism are both ultrasonic dust removal heads.

9. The dust removal device according to claim 8, characterized in that: The first dust removal surface is a contoured arc surface or a plane, and the second dust removal surface is a contoured arc surface or a plane.

10. The dust removal device according to claim 5, wherein: The first hollow isolation mechanism and the second hollow isolation mechanism are both grid mechanisms.

11. The dust removal device according to claim 5, characterized in that: The material of the first hollow isolation mechanism is Teflon, polyurethane, polyvinyl chloride, polyethylene or rubber, and the material of the second hollow isolation mechanism is Teflon, polyurethane, polyvinyl chloride, polyethylene or rubber.

12. The dust removal device according to claim 5, wherein: The first dust removal surface has a blowing port and an air suction port, the blowing port is used to blow dust removal airflow toward the material, and the air suction port is used to suck away dust on the material. The structure of the second dust removal surface is the same as that of the first dust removal surface.

13. The dust removal device according to claim 12, wherein: The blowing port includes a first suction port and a second suction port, and the first suction port, the blowing port and the second suction port are arranged in sequence on the conveying path of the material.

14. The dust removal device according to claim 5, wherein: It also includes a limiting mechanism arranged opposite to the conveying mechanism, and the limiting mechanism is used to limit the side of the material away from the first hollow isolation mechanism to prevent the material from moving toward the side away from the first hollow isolation mechanism.

15. The dust removal device according to claim 14, characterized in that: The limiting mechanism can elastically abut against the material.

16. The dust removal device according to claim 14, wherein: The limiting mechanism includes a limiting conveyor belt for contacting a side of the material away from the first hollow isolation mechanism, and the second hollow isolation mechanism is a part of the limiting conveyor belt.

17. The dust removal device according to claim 16, wherein: The limiting mechanism also includes multiple limiting rollers, the limiting conveyor belt is a closed loop structure, and the multiple limiting rollers are distributed inside and outside the closed loop structure to support the limiting conveyor belt. The second blowing and dust removal mechanism is located inside the limiting conveyor belt and between two adjacent limiting rollers.

18. The dust removal device according to claim 17, wherein: The limiting conveyor belt is a belt, and the multiple limiting rollers include four inner limiting rollers located inside the limiting conveyor belt and two outer limiting rollers located outside the limiting conveyor belt, the four inner limiting rollers include two follower pressure rollers, a belt passing roller and a belt driving roller, the two follower pressure rollers are arranged at intervals on the conveying path of the material, one belt passing roller and one belt driving roller are arranged at intervals in a direction parallel to the conveying path of the material, the two follower pressure rollers are closer to the material than one belt passing roller and one belt driving roller, on the conveying path of the material, the belt passing roller is arranged opposite to the follower pressure roller located upstream, the belt driving roller is arranged downstream of the follower pressure roller located downstream, the two outer limiting rollers include a belt tensioning roller located between the belt passing roller and the belt driving roller and a belt passing roller located between the belt driving roller and the follower pressure roller, and the second blowing and dust removal mechanism is located between the two follower pressure rollers.

19. The dust removal device according to claim 14, wherein: It also includes a reference plate, and the conveying mechanism, the first blowing and dust removal mechanism, the first hollow isolation mechanism, the second blowing and dust removal mechanism, the second hollow isolation mechanism and the limiting mechanism are all arranged on the reference plate.

20. A cutting and stacking machine, characterized in that: Comprising the dust removal device as described in any one of claims 1-19.

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