Blade structure and printer

Abstract

The utility model discloses a blade structure and a printer, the blade structure comprises a fixed knife and a movable knife used for cutting paper, the surface of the movable knife and the surface of the fixed knife are respectively provided with a coating film used for preventing paper sticking, and the coating film is provided with a hydrophobic structure which enables the contact area of the blade structure and a foreign object to be reduced. The hydrophobic structure comprises a plurality of protrusions arranged at intervals. The printer comprises a paper cutting mechanism, and the paper cutting mechanism comprises the blade structure. The anti-sticking performance is good, the wear resistance is high, and the service life is long.

Description

Technical Field

[0001] This utility model relates to the field of printers, and more particularly to a blade structure and a printer. Background Technology

[0002] Many printers now have a paper cutting function, and these printers need to set up a blade structure for paper cutting. The blade structure of a typical printer consists of a fixed blade and a moving blade.

[0003] Existing blade structures tend to stick to paper when cutting it. To prevent this, a Teflon coating is applied to the surface of the blade structure. However, this method is not very effective at preventing paper from sticking and has poor wear resistance. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a blade structure and printer with good anti-stick performance and strong wear resistance.

[0005] One of the objectives of this utility model is achieved through the following technical solution:

[0006] A blade structure includes a fixed blade and a movable blade for cutting paper. Both the movable blade and the fixed blade have a coating film on their surfaces to prevent paper from sticking. The coating film has a hydrophobic structure that reduces the contact area between the blade structure and external objects. The hydrophobic structure includes a plurality of spaced protrusions.

[0007] Preferably, the coating film also has coating nanoparticles to reduce surface tension, and the coating film is a diamond-like carbon film.

[0008] Preferably, the hydrophobic structure is a lotus leaf-like surface hydrophobic structure, and the protrusion is a fine sand protrusion.

[0009] Preferably, the surface area of ​​the fine sand protrusions is less than 10% of the surface area of ​​the coating film.

[0010] Preferably, the moving blade has a first cutting edge at one end near the fixed blade, and the first cutting edge forms an acute angle α with the surface of the moving blade.

[0011] Preferably, the first cutting edge is also provided with an anti-curling end to prevent the paper from curling up.

[0012] Preferably, the moving blade is also provided with a mounting end and mounting holes for easy installation.

[0013] Preferably, the fixed blade has a second cutting edge at one end near the moving blade, and the fixed blade has a fixing hole.

[0014] Preferably, the fixed blade includes a left fixed blade and a right fixed blade that are symmetrical to each other, and both the left fixed blade and the right fixed blade are arranged opposite to the moving blade.

[0015] The second objective of this utility model is achieved by the following technical solution:

[0016] A printer comprising the blade structure described in any one of the preceding claims, the printer including a paper cutting mechanism, the paper cutting mechanism including the blade structure.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] The blade structure disclosed in this application has a hydrophobic structure that reduces the contact area between the blade structure and the external object, thereby reducing the contact area between the blade structure and the paper and reducing the adsorption force on the blade structure, thus improving the anti-sticking performance.

[0019] In addition, the reduced contact area with the paper also reduces friction, and the hydrophobic structure, which includes multiple spaced protrusions, also enhances wear resistance and service life. Attached Figure Description

[0020] Figure 1 A three-dimensional structural schematic diagram of one embodiment of the blade structure of this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the moving blade of this utility model;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is a three-dimensional structural diagram of the fixed blade of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of another embodiment of the blade structure of this utility model.

[0025] In the diagram: 100, blade structure; 10, moving blade; 11, mounting end; 12, anti-warping end; 13, mounting hole; 14, first cutting edge; 15, coating film; 16, hydrophobic structure; 161, fine sand protrusion; 162, coated nanoparticles; 20, fixed blade; 21, second cutting edge; 22, fixing hole; 23, left fixed blade; 24, right fixed blade. Detailed Implementation

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Implementation Method 1

[0029] like Figures 1-2 A blade structure 100 includes a fixed blade 20 and a movable blade 10 for cutting paper. Both the movable blade 10 and the fixed blade 20 are provided with a coating film 15 for preventing paper from sticking. The coating film 15 has a hydrophobic structure 16 that reduces the contact area between the blade structure 100 and external objects. The hydrophobic structure 16 includes a plurality of spaced protrusions.

[0030] In the above embodiment, because the blade structure 100 includes a hydrophobic structure 16 that reduces the contact area between the blade structure 100 and external objects, the contact area between the blade structure 100 and the paper is reduced, and the adsorption force on the blade structure 100 is also reduced, thereby improving the anti-stick performance. Furthermore, the hydrophobic structure 16 reduces the contact area with the paper, correspondingly reducing friction. The hydrophobic structure also includes multiple spaced protrusions, which increase the number of friction cycles, thus enhancing wear resistance and service life.

[0031] The fixed blade 20 is fixed to the printer. During cutting, the movable blade 10 moves toward the fixed blade 20 to cut the paper or label. In practical use, the movable blade 10 is more suitable for cutting labels with adhesive.

[0032] Implementation Method 2

[0033] like Figure 3 As shown (Note) Figure 3 For the enlarged structural diagram, both the hydrophobic structure 16 and the coated nanoparticles 162 are fine structures (their actual size and proportions may differ from reality). In a preferred embodiment, the coating film 15 is a diamond-like carbon film, and the coating film 15 also has coated nanoparticles 162 to reduce surface tension. Preferably, the hydrophobic structure 16 is a lotus leaf-like surface hydrophobic structure, and the protrusions are fine sand protrusions 161. Preferably, the surface area of ​​the fine sand protrusions is less than 10% of the surface area of ​​the coating film 15.

[0034] In the above embodiment, a diamond-like thin film is formed by using metal particles in a vacuum furnace with an electromagnetic field; fine sand is sprayed onto the surfaces of the moving blade 10 and the fixed blade 20, and then heated in a vacuum furnace to form the hydrophobic structure of the lotus leaf-like surface; finally, a nanomaterial for generating an ultra-micro matrix coating is infiltrated into the surface of the blade structure in a vacuum furnace with an electromagnetic field to form the coating nanoparticles 162.

[0035] The diamond-like carbon film further enhances the wear resistance and service life of the blade structure 100. The fine abrasive protrusions 161 increase the contact area between the coating film 15 and the paper, and are cost-effective. The coated nanoparticles 162 minimize the surface tension of the blade structure 100. The surface area of ​​the fine abrasive protrusions is less than 10% of the surface area of ​​the coating film 15, thus reducing the contact area between foreign objects and the coating film 15 by 90%.

[0036] Implementation Method 3

[0037] In a preferred embodiment, such as Figure 2 and Figure 3 As shown, the movable blade 10 has a first cutting edge 14 near the fixed blade 20, and the first cutting edge 14 forms an acute angle α with the surface of the movable blade 10. Preferably, the first cutting edge 14 is also provided with an anti-warping end 12 to prevent the paper from warping. Preferably, the movable blade 10 is also provided with an installation end 11 and an installation hole 13 for easy installation.

[0038] In the above embodiment, the movable blade 10 cuts the paper through the first cutting edge 14, and the acute angle α facilitates the cutting of the paper by the first cutting edge 14. The anti-warping end 12 can prevent the paper from warping during cutting. The movable blade 10 is mounted on the printer through the mounting end 11 or the mounting hole 13.

[0039] Implementation Method 4

[0040] In a preferred embodiment, such as Figure 4 and Figure 5 As shown, the fixed blade 20 has a second cutting edge 21 at one end near the moving blade 10, and a fixing hole 22 is provided on the fixed blade 20. Preferably, the fixed blade 20 includes a left fixed blade 23 and a right fixed blade 24 that are symmetrical to each other, and both the left fixed blade 23 and the right fixed blade 24 are arranged opposite to the moving blade 10.

[0041] In the above embodiment, the fixed blade 20 cuts paper through the second cutting edge 21, and the fixed blade 20 is mounted on the printer through the fixing hole 22. The left fixed blade 23 and the right fixed blade 24 facilitate the fixed blade 20 in cutting various types of paper.

[0042] This utility model also discloses a printer that includes the blade structure 100, the printer including a paper cutting mechanism, the paper cutting mechanism including the blade structure 100.

[0043] The printer's performance and lifespan are enhanced by the blade structure 100, which makes it less prone to paper sticking and has high wear resistance when cutting paper.

[0044] In summary, this blade structure 100 enhances the anti-sticking and wear resistance of the blade structure 100 by setting a hydrophobic structure 16 and coated nanoparticles 162 on the blade surface, thereby improving the service life and performance of the blade structure 100 and the printer, and is worthy of widespread use.

[0045] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A knife structure comprising a fixed knife and a moving knife for cutting paper, characterised in that: Both the moving blade and the fixed blade are provided with a coating film for preventing paper from sticking. The coating film has a hydrophobic structure that reduces the contact area between the blade structure and the external object. The hydrophobic structure includes a plurality of spaced protrusions.

2. The blade structure of claim 1, wherein: The coating film also has coating nanoparticles that reduce surface tension, and the coating film is a diamond-like film.

3. The blade structure of claim 2, wherein: The hydrophobic structure is a lotus leaf-like surface hydrophobic structure, and the protrusion is a fine sand protrusion.

4. The blade structure of claim 3, wherein: The surface area of ​​the fine sand protrusions is less than 10% of the surface area of ​​the coating film.

5. The blade structure of claim 1, wherein: The moving blade has a first cutting edge at one end near the fixed blade, and the first cutting edge forms an acute angle α with the surface of the moving blade.

6. The blade structure of claim 5, wherein: The first cutting edge is also provided with an anti-curling end to prevent the paper from curling up.

7. The blade structure of claim 6, wherein: The moving blade is also provided with a mounting end and mounting holes for easy installation.

8. The blade structure of claim 1, wherein: The fixed blade has a second cutting edge at one end near the moving blade, and a fixing hole is provided on the fixed blade.

9. The blade structure of claim 8, wherein: The fixed blade includes a left fixed blade and a right fixed blade that are symmetrical to each other, and both the left fixed blade and the right fixed blade are arranged opposite to the moving blade.

10. A printer comprising the blade structure according to any one of claims 1-9, the printer comprising a paper cutting mechanism, the paper cutting mechanism comprising the blade structure.

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