A paper wiper blade

Abstract

The utility model discloses a kind of paper scraping doctor blades, including the base body formed by several layers of glass fiber cloth weaving and adhesive, the blade body formed by several layers of carbon fiber cloth weaving and adhesive, the transition section of base body and blade body staggered connection, each layer of glass fiber cloth and carbon fiber woven cloth includes the edge line formed around, 45 ° warp and -45 ° weft that stagger with edge line each other. Advantage: by glass fiber cloth and carbon fiber woven cloth are woven using 45 ° warp 200 and -45 ° weft 300 that stagger each other, improve the strength of woven line at blade body 2 edge horizontal, also facilitate to realize the stagger of transition section 3 carbon fiber woven line and glass fiber cloth, to the strength of entire a kind of paper scraping doctor blade. And base body 1 using glass fiber cloth and blade body 2 of carbon fiber woven cloth compound form doctor blade, can utilize the doctor blade made of carbon fiber material wear resistance, high temperature resistance, long service life reduce cost, can also utilize glass fiber cloth to further reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of papermaking doctor blades, specifically a paper doctor blade. Background Technology

[0002] Traditional synthetic material blades are typically woven from a single warp and weft yarn. For example, they may consist of several layers of fiberglass cord, carbon fiber cord, or a combination of fiberglass cord and carbon fiber layers, bonded together with epoxy resin. Because carbon fiber is significantly more expensive than fiberglass, blades made entirely of carbon fiber cord are costly. While ordinary fiberglass is cheaper, its performance is far inferior to carbon fiber. In practice, a hybrid product combining several layers of fiberglass and carbon fiber has emerged, offering performance and price between the two. In actual use, once the blade width wears down to a certain point, it becomes unusable and no longer has any value. For example, a 76mm wide carbon fiber blade typically becomes unusable after wearing down to 60mm (approximately 20% wear), wasting about 80% of the carbon fiber material. Furthermore, during operation, when the roller temperature is high and the debris adhering to the roller is sticky, traditional blades may experience difficulty in peeling off the fibers. The warp and weft yarns of traditional weaving (such as...) Figure 3 The transverse braided lines at the cutting edge are relatively weak and do not have effective cross-connection with other adjacent braided lines. Therefore, when the blade is subjected to external force, the transverse braided lines at the edge can easily fall off, causing the blade to roll, the braided lines to delaminate, and the blade to fail.

[0003] Therefore, it is necessary to provide a paper scraper. Summary of the Invention

[0004] The present invention provides a paper scraper that effectively solves the problems of high cost and easy failure at the edge of the blade in existing scrapers.

[0005] The technical solution adopted in this utility model is:

[0006] A scraper blade includes a matrix formed by weaving several layers of fiberglass cloth and an adhesive, a blade formed by weaving several layers of carbon fiber cloth and an adhesive, and a transition section in which the matrix and the blade are interleaved. Each layer of fiberglass cloth and carbon fiber cloth includes an edge line that surrounds the blade, and warp threads at 45° and weft threads at -45° that intersect with the edge line.

[0007] Furthermore, the intersecting 45° longitude lines and -45° latitude lines form a grid, and the grid contains carbon sand wear-resistant particles with a binder.

[0008] Furthermore, the adhesive is epoxy resin.

[0009] Furthermore, the base body and the blade body have the same length, the height of the base body is greater than the height of the blade body, and the height of the transition section is less than the height of the blade body.

[0010] Furthermore, the upper end of the blade is provided with an inclined cutting surface.

[0011] Furthermore, the distance between the upper end of the blade and the upper end of the base is 20mm.

[0012] The beneficial effects of the utility model are: it can effectively prevent the needle gauge from being damaged during inspection, and after detecting unqualified products, the upper and lower clamping blocks clamp both ends of the needle gauge, reducing the vibration of the needle gauge and ensuring that the needle gauge can be aligned and reset in time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a doctor blade provided for an embodiment of this application.

[0014] Figure 2 This is a schematic diagram of the weaving of the edge lines, warp and weft threads of a doctor blade provided for an embodiment of this application.

[0015] Figure 3 This is a schematic diagram of existing warp and weft knitting.

[0016] The diagram is marked as follows: 1. Base; 2. Blade; 3. Transition section; 100. Edge line; 200. Meridian; 300. Parallel; 400. Grid. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] like Figure 1 and Figure 2 As shown, an embodiment of this application provides a paper scraper, comprising a substrate 1 formed by weaving several layers of glass fiber cloth and an adhesive, a blade 2 formed by weaving several layers of carbon fiber cloth and an adhesive, and a transition section 3 in which the substrate 1 and the blade 2 are interleaved. Each layer of the glass fiber cloth and carbon fiber cloth includes an edge line 100 formed by surrounding the substrate, and warp threads 200 at 45° and weft threads 300 at -45° that intersect with the edge line 100.

[0019] In actual use, the base 1 is installed on the scraper holder, and the blade 2 is used to scrape off the water stains on the paper surface by contacting it. After the blade 2 reaches its service life, the entire scraper is scrapped.

[0020] In the above design, by weaving glass fiber cloth and carbon fiber woven cloth with interlaced 45° warp threads 200 and -45° weft threads 300, compared to the traditional horizontal and vertical interlaced warp and weft thread weaving, the weaving threads at the transverse edge of the blade body 2 edge line 100 (the top that directly forms line contact with the paper sheet or roller) can be interconnected by adjacent 45° warp threads 200 and -45° weft threads 300, improving the strength of the weaving threads at the transverse edge of the blade body 2. This also facilitates the interlacing of the carbon fiber woven threads and glass fiber cloth in the transition section 3, thereby increasing the overall strength of the doctor blade. Furthermore, by using a composite of glass fiber cloth matrix 1 and carbon fiber woven cloth blade body 2 to form the doctor blade, the cost can be reduced by utilizing the wear resistance, high temperature resistance, and long lifespan of the doctor blade made of carbon fiber material, while further reducing costs by utilizing glass fiber cloth.

[0021] Specifically: such as Figure 2 As shown, the intersecting 45° longitude lines 200 and -45° latitude lines 300 form a grid 400, and the grid 400 contains carbon sand wear-resistant particles with a binder. Figure 2 (Middle black dot).

[0022] When the woven material is mixed with the adhesive, the adhesive fills the mesh 400. After the adhesive fills the mesh 400, it is mixed with carbon sand abrasion-resistant particles.

[0023] In the above design, a wear-resistant layer is formed by mixing carbon abrasive particles into the binder in the mesh 400. When the blade scrapes away debris, the abrasive particles come into contact with the roller, grinding and removing stubborn debris adhering to the roller. This achieves a cleaning effect that ordinary blades cannot.

[0024] Specifically, the adhesive is epoxy resin.

[0025] In the above design, epoxy resin not only has good bonding properties, which can effectively bond the layers of glass fiber cloth, the layers of carbon fiber cloth, and the interlaced glass fiber cloth and carbon fiber cloth, but also has high strength to meet the application scenarios of the scraper.

[0026] Specifically: the base 1 and the blade 2 have the same length, the height of the base 1 is greater than the height of the blade 2, and the height of the transition section 3 is less than the height of the blade 2.

[0027] When the blade actually scrapes the surface of the paper, only the blade body 2 needs to work, and the rest of the parts only need to support the blade body.

[0028] The above design can minimize the material consumption of the blade body 2.

[0029] Specifically, the upper end of the blade body 2 is provided with an inclined blade surface.

[0030] Specifically, the distance between the upper end of the blade 2 and the upper end of the base 1 is 20mm.

[0031] In the above design, a distance of 20mm between the upper end of the blade body 2 and the upper end of the base body 1 can meet the usage requirements of the blade body 2 without using too much carbon fiber, which would increase costs.

[0032] In further detail, it should be understood that the above description is only a specific embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A paper scraper, characterized in that: It includes a matrix (1) formed by weaving several layers of glass fiber cloth and bonding agent, a blade (2) formed by weaving several layers of carbon fiber cloth and bonding agent, and a transition section (3) where the matrix (1) and the blade (2) are interwoven. Each layer of glass fiber cloth and carbon fiber cloth includes a surrounding edge (100), a 45° warp (200) and a -45° weft (300) that intersect with the edge (100).

2. The paper scraper according to claim 1, characterized in that: The intersecting 45° longitude lines (200) and -45° latitude lines (300) form a grid (400), and the grid (400) contains carbon sand wear-resistant particles with binder.

3. A doctor blade according to claim 1, characterized in that: The adhesive is epoxy resin.

4. A doctor blade according to claim 1, characterized in that: The base (1) and the blade (2) are of equal length, the height of the base (1) is greater than the height of the blade (2), and the height of the transition section (3) is less than the height of the blade (2).

5. A doctor blade according to claim 1, characterized in that: The upper end of the blade (2) is provided with an inclined blade surface.

6. A doctor blade according to claim 1, characterized in that: The distance between the upper end of the blade body (2) and the upper end of the base body (1) is 20mm.

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