Dust removal roller and dust removal device

Abstract

The utility model discloses a dust removal roller and a dust removal device.The dust removal roller comprises a roller core and a plurality of pieces of dust removal paper spirally wound around the roller core, each piece of dust removal paper comprises a base layer with a bonding face and a release face and an adhesive layer located on the bonding face, and the base layer is provided with a first side edge and a second side edge; the corresponding adhesive layer is provided with a first boundary and a second boundary, the distance between the first side edge and the first boundary is equal to the width of the first blank part, the distance between the second side edge and the second boundary is equal to the width of the second blank part, the first blank part is partially superposed on the second blank part, and the second blank part is partially superposed on the second blank part. And the release surface of the first blank part is adhered to the adhesive layer of the lower-layer dedusting paper. According to the technical scheme disclosed by the invention, through optimization of the dedusting paper and the winding mode, continuous tearing is effectively avoided while no gap exists, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the field of daily necessities, and in particular to a dust removal roller and a dust removal device. Background Art

[0002] When the dust removal roller is in use, the target object is cleaned through the sticky outer surface of the dust removal paper. When the adhesive capacity of the sticky outer surface is saturated after use, the outer layer of dust removal paper needs to be removed to expose the inner layer of dust removal paper for continued dust removal.

[0003] For example, a Chinese patent document with publication number CN219270842U discloses an easy-to-tear non-sticky sticky device, comprising a roll, at least two sticky papers with different preset patterns and / or preset colors, the sticky papers with different preset patterns and / or preset colors are alternately wound on the outer surface of the roll, and the gaps formed by two adjacent layers of sticky papers wound on the outer surface of the roll do not overlap, the sticky papers each include a sticky sticky area and a non-sticky tearing area, and the tearing area is located at the end of the sticky paper; the next layer of sticky paper can be seen from the gap of the outermost layer of sticky paper, and it is easy to find the non-glue tearing edge at this time; and each piece of sticky paper is provided with a non-glue tearing edge, which is easy to pinch and will not stick to the hand.

[0004] Similar to the above-mentioned documents, in order to prevent the inner layer or even the innermost layer of dust removal paper from being taken away from the dust removal roller piece by piece due to its own stickiness when removing the outer layer of dust removal paper (also known as "continuous tearing"), the existing technical route needs to set a non-sticky area on the side of the sticky area and leave a gap during the winding process. However, the existence of the gap causes the dust on the outer layer of dust removal paper to contaminate the inner layer of dust removal paper through the gap when it is used; at the same time, the tear of the outer layer of dust removal paper is adhered to the inner layer of dust removal paper, and even if instructions are given, it is difficult for the user to peel the tear from the dust removal roller, especially when the outer layer of dust removal paper is full of dust.

[0005] Therefore, the inventors found that the existing technical route encountered a dilemma: closing the gap would lead to continuous tearing, and setting the gap would contaminate the dust removal paper on the inner layer during use, affecting the user experience. Utility Model Content

[0006] In order to solve the above-mentioned technical problems, the present application discloses a dust removal roller, comprising a tube core and a plurality of dust removal papers spirally wound on the tube core, each dust removal paper comprising a base layer having a bonding surface and a release surface and an adhesive layer located on the bonding surface, the base layer having a first blank portion and a second blank portion on both sides where the adhesive layer is not set, the base layer having a first side edge and a second side edge, and the corresponding adhesive layer having a first boundary and a second boundary, the spacing between the first side edge and the first boundary being the width of the first blank portion, the spacing between the second side edge and the second boundary being the width of the second blank portion, the first blank portion being partially overlapped on the second blank portion, and the release surface of the first blank portion is adhered to the adhesive layer of the lower layer of dust removal paper.

[0007] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0008] Optionally, each blank portion includes an upper surface located on the bonding surface and a lower surface located on the release surface, and the first blank portion includes:

[0009] The head portion has a lower surface abutting against an upper surface of the second blank portion;

[0010] The transition part, the lower surface is bonded to the adhesive layer of the lower dust removal paper;

[0011] The upper surfaces of the head portion and the transition portion are in contact with the release surface of the base layer of the upper dust removal paper.

[0012] Optionally, in the radial direction of the drum core, each dust removal paper is spirally wound on the drum core in sequence, and in the circumferential direction of the drum core, the winding starting points of adjacent dust removal papers are staggered.

[0013] Optionally, in the radial direction of the cylinder core, the adjacent dust removal papers from inside to outside are respectively the lower dust removal paper, the current dust removal paper and the upper dust removal paper;

[0014] When the upper layer of dust removal paper is peeled off from the current dust removal paper, the transition portion of the first blank portion of the current dust removal paper is adhered by the adhesive layer of the lower layer of dust removal paper to remain on the lower layer of dust removal paper, and the upper surface of the first blank portion of the current dust removal paper is not adhered to the release surface of the upper layer of dust removal paper to achieve separation of the two.

[0015] Optionally, the head of the first blank portion of each dust removal paper is overlapped on the second blank portion thereof to form an overlapped boundary;

[0016] When the upper layer of dust removal paper is peeled off from the current dust removal paper, a peeling line is formed between the release surface of the peeling portion and the adhesive layer of the current dust removal paper, and the peeling line passes through the second boundary of the current dust removal paper, the overlapping boundary of the current dust removal paper and the first boundary of the current dust removal paper in sequence.

[0017] Optionally, the width of the first blank portion is greater than the width of the second blank portion.

[0018] Optionally, on the movement path of the peeling line, the first bonding position between the adhesive layer of the lower layer of dust removal paper and the lower surface of the transition portion of the current dust removal paper is located between the overlapping boundary of the current dust removal paper and the first boundary of the current dust removal paper.

[0019] Optionally, the peeling line moves in the circumferential direction of the tube core, from the time when the peeling line passes above the first bonding position between the adhesive layer of the lower dust removal paper and the release surface of the current dust removal paper to the time when the peeling line reaches the first boundary of the current dust removal paper. The distance that the peeling line passes in the circumferential direction of the tube core is the anti-continuous tearing distance, and the anti-continuous tearing distance is equal to the extension distance of the transition portion in the circumferential direction of the tube core, and the anti-continuous tearing distance is 3 to 25 mm.

[0020] Optionally, after the peeling line passes through the first boundary of the current dust removal paper, in the area passed by the peeling line, the bonding area S1 between the adhesive layer of the lower layer of dust removal paper and the release surface of the current dust removal paper is greater than the bonding area S2 between the adhesive layer of the current dust removal paper and the release surface of the upper layer of dust removal paper.

[0021] Optionally, the winding starting point of each dust removal paper is adjacent to the axial end face of the drum core, and the head of each dust removal paper located at the winding starting point is a tearing portion for driving itself to peel off, and the tearing portion does not adhere to the inner and outer dust removal papers.

[0022] Optionally, the base layer has a first side and a second side facing each other; the first boundary of the adhesive layer is retracted by a first distance D1 compared to the edge of the first side to form a first blank portion, and the second boundary of the adhesive layer is retracted by a second distance D2 compared to the edge of the second side to form a second blank portion, and the first distance D1 is greater than the second distance D2.

[0023] The first side edge and the second side edge are arranged in parallel, and an overlapping distance D3 between the first blank portion and the second blank portion is smaller than the second distance D2.

[0024] The present application also discloses a dust removal roller, comprising a core and a plurality of dust removal papers spirally wound on the core, each dust removal paper comprising a base layer having a bonding surface and a release surface and an adhesive layer located on the bonding surface, a first boundary of the adhesive layer retracts relative to a first side edge of the base layer to form a first blank portion, the first blank portion is partially overlapped on its own adhesive layer, and a release surface of the first blank portion is adhered to the adhesive layer of the lower layer of dust removal paper.

[0025] Optionally, the first blank portion includes an upper surface located on the bonding surface and a lower surface located on the release surface, and the first blank portion includes:

[0026] The head, the lower surface is attached to its own adhesive layer;

[0027] The transition part, the lower surface is bonded to the adhesive layer of the lower dust removal paper;

[0028] The upper surfaces of the head and the transition part are in contact with the release surface of the base layer of the upper dust removal paper;

[0029] In the radial direction of the tube core, the adjacent dust removal papers from the inside to the outside are respectively the lower layer of dust removal paper, the current dust removal paper and the upper layer of dust removal paper; when the upper layer of dust removal paper is peeled off from the current dust removal paper, the transition part of the first blank part of the current dust removal paper is adhered by the adhesive surface of the lower layer of dust removal paper to remain on the lower layer of dust removal paper, and the upper surface of the first blank part of the current dust removal paper is not adhered to the release surface of the upper layer of dust removal paper to achieve separation of the two.

[0030] The present application also discloses a dust removal device, comprising a bracket and the dust removal roller described in the above technical solution, wherein the dust removal roller is rollingly mounted on the bracket.

[0031] The technical solution disclosed in the present application achieves seamlessness while effectively avoiding continuous tearing through the optimization of dust removal paper and winding method, thereby improving user experience.

[0032] The specific beneficial technical effects will be further explained in the specific implementation methods in combination with specific structures or steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the dust removal paper in the first embodiment of the present application;

[0034] Figure 2 A schematic diagram of a dust removal roller in the first embodiment;

[0035] Figure 3 for Figure 2 Schematic diagram of the dust removal roller matching process;

[0036] Figure 4 for Figure 2A schematic diagram of the axial section of the dust removal roller matching process;

[0037] Figure 5 It is an enlarged schematic diagram of the dust removal roller at the axial end of the cylinder core in the first embodiment;

[0038] Figure 6 for Figure 5 Schematic diagram of the dust removal roller after removing the dust removal paper;

[0039] Figure 7 This is a schematic diagram of the dust removal paper in the second embodiment of the present application;

[0040] Figure 8 A schematic diagram of a dust removal roller in the second embodiment;

[0041] Fig. 9 for Figure 8 Schematic diagram of the axial section of the dust removal roller matching process.

[0042] The reference numerals in the figures are described as follows:

[0043] 100, tube core;

[0044] 200, dust removal paper; 201, base layer; 2011, bonding surface; 2012, release surface; 203, adhesive layer; 205, first blank portion; 206, head portion; 207, transition portion; 208, second blank portion; 209, upper dust removal paper; 210, current dust removal paper; 211, lower dust removal paper; 212, tearing portion;

[0045] 301, first boundary; 302, second boundary; 303, overlapping boundary; 304, first point; 305, second point; 306, peeling line. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0049] It is worth noting that in order to better express the coordination relationship, Figure 4 And attached Fig. 9 The multi-layer structure of dust removal papers shown in the figure is exaggerated in the height direction, especially the gaps between the dust removal papers. In actual products, the thickness of the dust removal paper itself is less than 1 mm. Combined with the flexibility of the dust removal paper and the ductility of the adhesive layer, the gap size between the dust removal papers can be ignored. For example Figure 4 In the figure, the first point 304 and the second point 305 should be understood to overlap, that is, the transition portion 207 of the current dust removal paper 210 is completely attached to the glue layer 203 of the lower dust removal paper 211. Fig. 9 The same is true for the gap between the middle transition portion 207 , the upper dust removal paper 209 and the current dust removal paper 210 .

[0050] refer to Figures 1 to 6 In the first embodiment of the present application, a dust removal roller is disclosed, including a tube core 100 and a plurality of dust removal papers 200 spirally wound on the tube core 100, each dust removal paper 200 includes a base layer 201 having a bonding surface 2011 and a release surface 2012 and an adhesive layer 203 located on the bonding surface 2011, the base layer 201 has a first side edge and a second side edge opposite to each other; the corresponding adhesive layer 203 has a first boundary 301 and a second boundary 302, the first boundary 301 retracts from the first side edge to form a first blank portion 205, and the second boundary 302 retracts from the second side edge to form a second blank portion 208; the first blank portion 205 is partially overlapped on the second blank portion 208, and a part of the release surface of the first blank portion 205 is adhered to the adhesive layer of the lower layer of dust removal paper.

[0051] In this embodiment, the dust removal paper is wound seamlessly by partially overlapping the first blank portion 205 and the second blank portion 208. At the same time, the partial release surface of the first blank portion 205 is adhered to the adhesive layer of the lower layer of dust removal paper, which avoids the continuous tearing that is easy to occur in the prior art, and effectively overcomes the current situation where it is difficult to achieve both technical effects. At the same time, the part of the first blank portion 205 superimposed on the second blank portion 208 is not adhered on both the upper and lower sides, which is convenient for users to locate and drive to remove the dust removal paper, further improving the user experience. In summary, the dust removal roller in this embodiment overcomes the defects of the prior art in all aspects, and has the comprehensive advantages of easy production and good user experience.

[0052] Combination Figure 4 From the middle view, two opposite sides of the base layer 201 are provided with blank portions without glue coating, wherein the first blank portion 205 includes:

[0053] The head 206, the lower surface of which is in contact with the upper surface of the second blank portion 208;

[0054] The lower surface of the transition part 207 is in contact with the adhesive layer 203 of the lower dust removal paper 211;

[0055] The upper surfaces of the head portion 206 and the transition portion 207 are in contact with the release surface 2012 of the base layer 201 of the upper dust removal paper 209 .

[0056] In this embodiment, the head 206 of the first blank portion 205 is attached to the upper surface of the second blank portion 208 to achieve the above-mentioned seamless winding. The transition portion 207 is attached to the adhesive layer 203 of the lower dust removal paper 211, and the upper surface is detachably attached to the release surface 2012 of the base layer 201 of the upper dust removal paper 209 to avoid continuous tearing. The head 206 located on the upper surface of the second blank portion 208 is convenient for the user to locate and drive to remove the dust removal paper.

[0057] The above configuration is not limited to spirally wound twill products in actual products. For example, multiple sheets of dust removal paper 200 are sequentially wound on the core 100 perpendicular to the axial direction of the core 100, and the above-mentioned blank portions are respectively set at the winding starting point and winding end point of each dust removal paper 200 to achieve mutual overlap. However, under existing process conditions, the spirally wound twill product can better meet the convenience of continuous production in the above setting. When a new processing technology emerges that can solve the continuous production problem of vertically wound products when realizing the above configuration, the technical solution in this application can also be implemented on vertically wound products. In the following, the embodiments in this application will be explained based on spirally wound twill products. In the radial direction of the core 100, each dust removal paper 200 is spirally wound on the core 100 in turn. In the overall structure of the dust removal drum, among the multiple layers of dust removal paper 200, the dust removal paper located on the outer layer completely covers the dust removal paper located on the inner layer. Reference Figure 1 When the dust removal paper 200 is flattened on a plane, the whole is a parallelogram, and the first blank portion 205 and the second blank portion 208 are parallel polygons, such as the parallelogram in the figure.

[0058] Specifically, the dust removal paper 200 can refer to the attached Figure 1As shown in the figure, the base layer 201 has a first side and a second side opposite to each other; the first boundary 301 of the adhesive layer 203 is retracted by a first distance D1 compared to the edge of the first side to form a first blank portion 205, and the second boundary 302 of the adhesive layer 203 is retracted by a second distance D2 compared to the edge of the second side to form a second blank portion 208, and the first distance D1 is greater than the second distance D2. In the figure, the first distance D1 ranges from 3 to 10 mm, and the second distance D2 ranges from 2.5 to 4 mm. Figure 5 , the overlapping distance D3 between the first blank portion 205 and the second blank portion 208 is smaller than the second distance D2. In the figure, the overlapping distance D3 is 0.5 to 2.4 mm.

[0059] In terms of coordination, refer to Figure 4 In the embodiment shown, in the radial direction of the drum core 100, the adjacent dust removal papers from inside to outside are the lower dust removal paper 211, the current dust removal paper 210 and the upper dust removal paper 209, and the two opposite sides of the base layer 201 of each dust removal paper are provided with blank portions that are not coated with glue;

[0060] When the upper layer of dust removal paper 209 is peeled off from the current dust removal paper 210, the transition portion 207 of the first blank portion 205 of the current dust removal paper 210 is adhered by the adhesive layer of the lower layer of dust removal paper 211 to remain on the lower layer of dust removal paper 211, and the upper surface of the first blank portion 205 of the current dust removal paper 210 is not adhered to the release surface of the upper layer of dust removal paper 209 to achieve separation of the two.

[0061] refer to Figures 3 to 6 As shown, the head 206 of the first blank part 205 of each dust remover paper is overlapped on its own second blank part 208 and forms an overlapping boundary 303; when the upper layer of dust remover paper 209 is peeled off from the current dust remover paper 210, a peeling line 306 is formed between the release surface of the peeling part and the adhesive layer of the current dust remover paper 210, and the peeling line 306 passes through the second boundary 302 of the current dust remover paper 210, the overlapping boundary 303 of the current dust remover paper 210 and the first boundary 301 of the current dust remover paper 210 in sequence.

[0062] exist Figure 4In the moving path of the peeling line 306, the first bonding position of the adhesive layer of the lower dust removal paper 211 and the lower surface of the transition part 207 of the current dust removal paper 210 (the first bonding position is the position shown by the first point 304 in the figure, and in the actual product, the first bonding position should be infinitely close to the position shown by the second point 305 in the figure) is located between the overlapping boundary 303 of the current dust removal paper 210 and the first boundary 301 of the current dust removal paper 210. In this process, the peeling line 306 and the second boundary 302 of the current dust removal paper 210, the overlapping boundary 303 of the current dust removal paper 210, and the first boundary 301 of the current dust removal paper 210 actually come into contact with each other, and the peeling line 306 passes over the first bonding position and does not actually come into contact. Further combination Figure 5 , the peeling line 306 moves in the circumferential direction of the core 100, from the time when the peeling line 306 passes above the first bonding position between the adhesive layer of the lower dust removal paper 211 and the release surface of the current dust removal paper 210, to the time when the peeling line 306 reaches the first boundary 301 of the current dust removal paper 210, the distance that the peeling line 306 passes in the circumferential direction of the core 100 is the anti-tear distance D4, and the anti-tear distance is equal to the extension distance of the transition portion 207 in the circumferential direction of the core 100, and the anti-tear distance is 3 to 25 mm. In the figure, the anti-tear distance is 3 to 15 mm. Furthermore, the anti-tear distance is greater than the width of the first blank portion 205. For example, in the figure, the width of the first blank portion 205 is 3 to 7 mm, and the anti-tear distance is 7.1 to 10 mm. It can be understood that the anti-tear distance is actually determined by the width of the first blank portion 205 , the overlapping width of the first blank portion 205 and the second blank portion 208 , and the angle between the first boundary 301 and the axis of the tube core 100 .

[0063] refer to Figure 5 and Figure 6 In the embodiment shown, Figure 5 The middle is the state before peeling. Figure 6 In the process, the upper dust removal paper 209 is peeled off a small section (for example, Figure 3 ) and exposes the adhesive layer 203 of the current dust removal paper 210. In the figure, the adhesive layer 203 of the current dust removal paper 210 and the adhesive layer 203 of the upper dust removal paper 209 are shown in different forms of shadows. After the peeling line 306 passes through the first boundary 301 of the current dust removal paper 210, in the area passed by the peeling line 306, the bonding area S1 between the adhesive layer of the lower dust removal paper 211 and the release surface of the current dust removal paper 210 is greater than the bonding area S2 between the adhesive layer of the current dust removal paper 210 and the release surface of the upper dust removal paper 209. If the boundary in the figure is understood as the peeling line 306, the bonding area S1 is Figure 6 The shadow area in the lower left corner of the figure is the bonding area S2. Figure 5Thanks to the difference in the anti-tear distance and the bonding area, the current dust removal paper 210 in this embodiment can effectively avoid the occurrence of continuous tearing. Figure 5 In the figure, the overlapped boundary 303 is actually provided by the side edge of the base layer 201. The other side edge of the base layer 201 is overlapped below the first blank portion 205, which is indicated by a dotted line.

[0064] In order to more conveniently remove the dust paper, refer to Figure 5 The winding starting point of each dust removal paper is close to the axial end face of the core 100. The head 206 of each dust removal paper at the winding starting point is a tearing portion 212 for driving the self-peeling. The tearing portion 212 does not adhere to the inner and outer dust removal papers. In the circumferential direction of the core 100, the winding starting points of adjacent dust removal papers are staggered, that is, the tearing portions 212 of adjacent dust removal papers are staggered. This feature is Figure 3 The staggered tearing portion 212 can further avoid continuous tearing, and can avoid wrinkles or even abnormalities during the production process, thereby improving the yield rate.

[0065] If the sole purpose is to achieve the technical advantages of no gaps and not easy to tear during the winding process, the technical solution in this application can also be simplified, for example Figures 7 to 9 In the second embodiment of the present application, a dust removal roller is disclosed, including a tube core 100 and a plurality of dust removal papers 200 spirally wound on the tube core 100, each dust removal paper 200 includes a base layer 201 having a bonding surface 2011 and a release surface 2012 and an adhesive layer 203 located on the bonding surface 2011, a first boundary 301 of the adhesive layer 203 is retracted compared to the first side edge to form a first blank portion 205, the first blank portion 205 is partially overlapped on its own adhesive layer 203, and a part of the release surface of the first blank portion 205 is adhered to the adhesive layer of the lower layer of dust removal paper.

[0066] In other words, one of the two opposite sides of the base layer 201 is provided with a blank portion without adhesive coating, wherein the first blank portion 205 includes:

[0067] The head 206 has a lower surface abutting against the upper surface of the adhesive layer 203;

[0068] The lower surface of the transition part 207 is in contact with the adhesive layer 203 of the lower dust removal paper 211;

[0069] The upper surfaces of the head portion 206 and the transition portion 207 are in contact with the release surface 2012 of the base layer 201 of the upper dust removal paper 209 .

[0070] Compared with the first embodiment, the head 206 in the second embodiment is directly superimposed on its own adhesive layer. Fig. 9As shown, when the upper dust removal paper 209 is peeled off from the current dust removal paper 210, a peeling line 306 is formed between the release surface of the peeling part and the adhesive layer of the current dust removal paper 210, and the peeling line 306 passes through the overlapping boundary 303 of the current dust removal paper 210 and the first boundary 301 of the current dust removal paper 210 in sequence. Similar to the above statement about the gap, the gap between the dust removal papers in the figure is only exaggerated, and it should be understood that in the radial direction of the drum core 100, the parts of the dust removal papers of each layer are close to and / or attached to each other.

[0071] Combining the first embodiment and the second embodiment, it can be understood that the width of the second blank portion 208 can be zero. At the same time, it can be understood that when both opposite sides of the base layer 201 are provided with blank portions that are not coated with glue, one of the blank portions is the first blank portion 205, and the other blank portion is the second blank portion 208, and the lower surface of the head portion 206 of the first blank portion 205 is in contact with the upper surface of the second blank portion 208; when one of the two opposite sides of the base layer 201 is provided with a blank portion that is not coated with glue, the blank portion is the first blank portion 205, and the lower surface of the head portion 206 of the first blank portion 205 is in contact with the upper surface of the glue layer 203.

[0072] Based on the above, one embodiment of the present application further discloses a dust removal device, including a bracket (not shown) and the dust removal roller in the above technical solution, and the dust removal roller is rotatably mounted on the bracket. Other structures of the dust removal device can be implemented in combination with existing technologies.

[0073] Furthermore, one embodiment of the present application also discloses a method for manufacturing a dust removal roller, comprising:

[0074] A plurality of spaced adhesive layers 203 are coated on a continuous base layer 201, and offset segmentation is performed at the spaced positions between the adhesive layers 203 to obtain a dust removal paper roll, and a first blank portion 205 and a second blank portion 208 of different widths are formed on both sides of the base layer 201 of the dust removal paper roll, wherein the first blank portion 205 is larger than the second blank portion 208;

[0075] The drum core 100 is conveyed in a first direction, and the drum core 100 rotates with the first direction as the rotation axis, and a plurality of dust removal paper rolls are taken and independently wound onto the drum core 100 in a second direction, and the second direction is arranged to intersect with the first direction; each dust removal paper roll forms adjacent lower dust removal paper 211, current dust removal paper 210 and upper dust removal paper 209 from inside to outside in the radial direction of the drum core 100, wherein the head 206 of the first blank portion 205 of the current dust removal paper 210 is superimposed on the upper surface of the second blank portion 208 or the adhesive layer 203, the transition portion 207 of the first blank portion 205 of the current dust removal paper 210 is bonded to the adhesive layer 203 of the lower dust removal paper 211, and the release surface 2012 of the base layer 201 of the upper dust removal paper 209 is coated on the current dust removal paper 210;

[0076] The drum core 100 wound with the dust removal paper roll is cut in a third direction perpendicular to the first direction to obtain a dust removal drum with a preset length in the first direction.

[0077] Offset segmentation is compared to the center segmentation at the interval between each adhesive layer 203. When the segmentation line of the offset segmentation does not fit the boundary of the adhesive layer 203, both sides of the base layer 201 of the dust removal paper roll form uncoated blank parts; when the segmentation line of the offset segmentation fits one boundary of the adhesive layer 203, one side of the base layer 201 of the dust removal paper roll forms an uncoated blank part, and the size of the blank part on the other side is zero. Therefore, no matter how it is set, both sides of the base layer 201 of the dust removal paper roll can form a first blank part 205 and a second blank part 208 of different widths, wherein the first blank part 205 is larger than the second blank part 208, that is, the width of the second blank part 208 can be zero.

[0078] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0079] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A dust removal roller, comprising a core and a plurality of dust removal papers spirally wound on the core, characterized in that: Each dust removal paper includes a base layer having a bonding surface and a release surface and an adhesive layer located on the bonding surface, the base layer has a first blank portion and a second blank portion on both sides where the adhesive layer is not set, the base layer has a first side edge and a second side edge, and the corresponding adhesive layer has a first boundary and a second boundary, the distance between the first side edge and the first boundary is the width of the first blank portion, the distance between the second side edge and the second boundary is the width of the second blank portion, the first blank portion is partially overlapped on the second blank portion, and the release surface of the first blank portion is adhered to the adhesive layer of the lower layer of dust removal paper.

2. The dust removal roller according to claim 1, characterized in that: The width of the first blank portion is greater than the width of the second blank portion, each blank portion comprises an upper surface located on the bonding surface and a lower surface located on the release surface, and the first blank portion comprises: The head portion has a lower surface abutting against an upper surface of the second blank portion; The transition part, the lower surface is bonded to the adhesive layer of the lower dust removal paper; The upper surfaces of the head portion and the transition portion are in contact with the release surface of the base layer of the upper dust removal paper.

3. The dust removal roller according to claim 2, characterized in that: In the radial direction of the core, the adjacent dust removal papers from inside to outside are the lower dust removal paper, the current dust removal paper and the upper dust removal paper respectively; in the circumferential direction of the core, the winding starting points of the adjacent dust removal papers are staggered; When the upper layer of dust removal paper is peeled off from the current dust removal paper, the transition portion of the first blank portion of the current dust removal paper is adhered by the adhesive surface of the lower layer of dust removal paper to remain on the lower layer of dust removal paper, and the upper surface of the first blank portion of the current dust removal paper is not adhered to the release surface of the upper layer of dust removal paper to achieve separation of the two.

4. The dust removal roller according to claim 3, characterized in that: The head of the first blank portion of each dust removal paper is overlapped on the second blank portion thereof to form an overlapped boundary; When the upper layer of dust removal paper is peeled off from the current dust removal paper, a peeling line is formed between the release surface of the peeling portion and the adhesive layer of the current dust removal paper, and the peeling line passes through the second boundary of the current dust removal paper, the overlapping boundary of the current dust removal paper and the first boundary of the current dust removal paper in sequence.

5. The dust removal roller according to claim 4, characterized in that: On the moving path of the peeling line, the first bonding position between the adhesive layer of the lower dust removal paper and the lower surface of the transition portion of the current dust removal paper is located between the overlapping boundary of the current dust removal paper and the first boundary of the current dust removal paper.

6. The dust removal roller according to claim 4, characterized in that: The peeling line moves in the circumferential direction of the tube core, from the time when the peeling line passes above the first bonding position between the adhesive layer of the lower dust removal paper and the release surface of the current dust removal paper, to the time when the peeling line reaches the first boundary of the current dust removal paper, the distance that the peeling line passes in the circumferential direction of the tube core is the anti-continuous tearing distance, which is equal to the extension distance of the transition portion in the circumferential direction of the tube core, and the anti-continuous tearing distance is 3 to 25 mm.

7. The dust removal roller according to claim 4, characterized in that: The winding starting point of each dust removal paper is adjacent to the axial end face of the drum core, and the head of each dust removal paper located at the winding starting point is a tearing portion for driving itself to peel off, and the tearing portion does not adhere to the inner and outer dust removal papers.

8. A dust removal roller, comprising a core and a plurality of dust removal papers spirally wound on the core, characterized in that: Each dust removal paper includes a base layer having a bonding surface and a release surface and an adhesive layer located on the bonding surface. The first boundary of the adhesive layer is retracted compared to the first side edge of the base layer to form a first blank portion. The first blank portion is partially overlapped on its own adhesive layer, and the release surface of the first blank portion is adhered to the adhesive layer of the lower layer of dust removal paper.

9. The dust removal roller according to claim 8, characterized in that: The first blank portion includes an upper surface located on the bonding surface and a lower surface located on the release surface, and the first blank portion includes: The head, the lower surface is attached to its own adhesive layer; The transition part, the lower surface is bonded to the adhesive layer of the lower dust removal paper; The upper surfaces of the head and the transition part are in contact with the release surface of the base layer of the upper dust removal paper; In the radial direction of the tube core, the adjacent dust removal papers from the inside to the outside are respectively the lower layer of dust removal paper, the current dust removal paper and the upper layer of dust removal paper; when the upper layer of dust removal paper is peeled off from the current dust removal paper, the transition part of the first blank part of the current dust removal paper is adhered by the adhesive surface of the lower layer of dust removal paper to remain on the lower layer of dust removal paper, and the upper surface of the first blank part of the current dust removal paper is not adhered to the release surface of the upper layer of dust removal paper to achieve separation of the two.

10. A dust removal device, characterized in that: It comprises a bracket and a dust removal roller according to any one of claims 1 to 9, wherein the dust removal roller is rollingly mounted on the bracket.

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