Dust removal device for paper machine

Abstract

The utility model relates to the technical field of papermaking, in particular to a dust removal device for a papermaking machine. Due to continuous work of the bristles, a large amount of chippings and dust can be attached, the bristles become hard, paper is prone to being damaged or scratched, and the paper is unqualified. The utility model provides a dust removal device for a paper machine. The dust removal device comprises a base, a mounting cover and the like, and a mounting cover is fixedly connected to the base. According to the dust removal device for the paper machine obtained through the design, chippings and dust on the surface of paper are removed through the bristles on the two brush rollers, then raised chippings and dust are limited through the housing, the space for the chippings and dust to fly is reduced, and the dust removal effect is good. The suction force of the input end of the centrifugal blower extending to the housing cannot be reduced, so that the chipping and dust suction efficiency of the centrifugal blower is improved, and then chippings and dust on the upper surface of the paper are sucked away through the suction force generated by the centrifugal blower.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking, in particular to a dust removal device for a papermaking machine. Background Art

[0002] In the prior art, a Chinese patent (CN213894529U) discloses a dust removal device for the reeling section of a papermaking machine. The device removes debris and dust on the surface of paper by arranging bristles on a roller, and then removes the raised dust by a dust removal head. However, since the bristles will adhere to a large amount of debris and dust due to continuous operation, and the device is not provided with a mechanism for cleaning the bristles, the debris and dust on the bristles will adhere to the paper again. As the debris on the bristles increases, the bristles will become hard, which is easy to damage or scratch the paper, resulting in unqualified paper. Therefore, in order to avoid the above problems, the bristles need to be cleaned regularly to prevent the above problems from occurring. Utility Model Content

[0003] The purpose of the utility model is to overcome the disadvantage that a large amount of debris and dust will be attached to the bristles due to the continuous work, making the bristles hard, easily damaging or scratching the paper, and causing the paper to be unqualified. A dust removal device is provided, which can continuously clean the debris and dust on the surface of the paper, and no debris will remain on the bristles, thereby ensuring the cleanliness and quality of the paper.

[0004] The embodiments of the present invention are implemented by the following technical solutions:

[0005] A dust removal device for a papermaking machine comprises a base, a mounting cover and a cleaning door; the mounting cover is fixedly connected to the base; a feeding port is provided on the front side of the mounting cover; a discharging port is provided on the rear side of the mounting cover; a cleaning door is movably connected to the rear of the mounting cover; it also comprises a moving assembly, a mounting plate, a brush roller, a motor, a dust removal assembly and a self-cleaning assembly; the inner wall of the mounting cover is connected to the moving assembly; two mounting plates symmetrically distributed on the left and right are connected to the moving assembly; two brush rollers are connected to the two mounting plates for common rotation; two motors are fixedly connected to the right mounting plate; the output shaft of each motor is fixedly connected to a brush roller; a dust removal assembly for removing debris and dust on the surface of paper is connected to the inner wall of the mounting cover; the dust removal assembly is connected to the mounting plate; the self-cleaning assembly for cleaning the two brush rollers is connected to the dust removal assembly; the moving assembly is used to drive the mounting plate, the brush roller, the motor, the dust removal assembly and the self-cleaning assembly to move together.

[0006] Preferably, the moving assembly includes an electric slide rail and an electric slider; two electric slide rails are fixedly connected to the inner front wall and the inner rear wall of the mounting cover; an electric slider is slidably connected to each electric slide rail; and the two electric sliders on the same side are fixedly connected to a mounting plate.

[0007] Preferably, the dust removal component includes a cover shell, a rectangular telescopic tube 1, a centrifugal blower, a rectangular ventilation duct, a collecting box and a rectangular telescopic tube 2; the cover shell is fixedly connected to the opposite sides of the two mounting plates, and the two brush rollers are located in the cover shell; a rectangular groove is opened on the front side of the cover shell; a rectangular telescopic tube 1 is arranged on the upper part of the cover shell; a centrifugal blower is fixedly connected to the upper part of the mounting cover; the input end of the centrifugal blower is connected to the rectangular telescopic tube 1; a rectangular ventilation duct is fixedly connected to the left wall inside the mounting cover; the output end of the centrifugal blower is connected to the rectangular ventilation duct; a collecting box is installed at the lower part of the mounting cover; the rectangular ventilation duct is connected to the collecting box; a rectangular telescopic tube 2 is arranged on the upper part of the collecting box; the rectangular telescopic tube 2 is connected to the lower part of the cover shell; and a self-cleaning component is connected to the rear part of the cover shell.

[0008] Preferably, the self-cleaning component includes a cleaning cylinder, a fan, a slide plate and a folding cloth; two cleaning cylinders symmetrically distributed up and down are fixedly connected to the rear part of the cover shell; the two cleaning cylinders are respectively in contact with the surface of a brush roller; an opening is provided on the cleaning cylinder, and the opening is close to one side of the brush roller; a plurality of equally distributed scraping grooves are provided on the cleaning cylinder, and the opening is connected to the scraping groove; the plurality of scraping grooves correspond to the bristles on the brush roller; a fan is fixedly connected to the right part of each cleaning cylinder; the left parts of the two cleaning cylinders pass through the slide plate together, and the two cleaning cylinders are fixedly connected to the slide plate; the slide plate is slidably connected to the rectangular ventilation duct, and a folding cloth is provided on the upper part of the slide plate; the folding cloth is fixedly connected to the rectangular ventilation duct.

[0009] Preferably, the bristles on the brush roller are fine wool.

[0010] Preferably, a sharp portion is provided between two adjacent scraping grooves on the cleaning cylinder, and the sharp portion contacts the surface of the brush roller.

[0011] Preferably, it also includes a mounting bracket and a spacing sensor; the mounting bracket is fixedly connected to the mounting plate; and the spacing sensor is fixedly connected to the mounting bracket.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The utility model discloses a dust removal device for a papermaking machine obtained by the above design. The bristles on two brush rollers are used to remove the debris and dust on the surface of the paper, and the raised debris and dust are restricted by the cover shell, and the space for the debris and dust to fly is reduced, so that the suction force extending from the input end of the centrifugal blower to the cover shell will not decrease, thereby improving the efficiency of the centrifugal blower in removing the debris and dust, and then the debris and dust on the surface of the paper are removed by the suction force generated by the centrifugal blower.

[0014] The utility model discloses a dust removal device for a papermaking machine obtained by the above design. When the brush roller has been working for a long time, the sharp portion is inserted into the roots of the bristles on the brush roller to scrape off the debris at the roots of the bristles. Then, through a plurality of scraping grooves, not only can the debris attached to the bristles be scraped off, but the bristles can also be corrected and the bent bristles can be straightened. The debris falling into the cleaning cylinder will be carried away by the airflow blown out by the fan and enter the collection box.

[0015] The utility model discloses a dust removal device for a paper machine obtained by the above design. When the amount of paper wound by the winding mechanism of the paper machine gradually increases, the paper is monitored in real time by a spacing sensor. As the paper rises, the brush roller and the connected components are driven to rise together, thereby preventing the paper from being continuously squeezed by the brush roller during the winding process, which may cause damage or breakage of the paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and the description thereof are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0017] Figure 1 It is a first three-dimensional structural schematic diagram of the dust removal device for a papermaking machine of the utility model;

[0018] Figure 2 It is a second three-dimensional structural schematic diagram of the dust removal device for a papermaking machine of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the installation cover, cleaning door, moving assembly, installation plate, brush roller, motor and dust removal assembly of the dust removal device for papermaking machine of the utility model;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the installation cover and dust removal assembly of the dust removal device for a papermaking machine according to the utility model;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of a self-cleaning component, a mounting bracket and a spacing sensor of a dust removal device for a papermaking machine according to the utility model;

[0022] Figure 6 It is a partial three-dimensional structural schematic diagram of a cleaning cylinder of a dust removal device for a papermaking machine according to the utility model.

[0023] In the figure: 1, base; 2, mounting cover; 3, cleaning door; 4, mounting plate; 5, brush roller; 6, motor; 101, electric slide rail; 102, electric slider; 201, cover shell; 202, rectangular telescopic tube one; 203, centrifugal blower; 204, rectangular ventilation duct; 205, collecting box; 206, rectangular telescopic tube two; 301, cleaning cylinder; 302, fan; 303, slide plate; 304, folding cloth; 305, mounting bracket; 306, spacing sensor; 2a, feed port; 2b, discharge port; 201a, rectangular groove; 301a, opening; 301b, scraping groove; 301c, sharp part. DETAILED DESCRIPTION

[0024] Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. In addition, in the following figures, in order to make each layer and each component a recognizable size, the scale of each layer and each component is appropriately changed for schematic illustration. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the drawings of the present invention, and are not specific limitations of the present invention.

[0025] like Figure 1-6 As shown, a dust removal device for a paper machine includes a base 1, a mounting cover 2 and a cleaning door 3; the mounting cover 2 is welded on the base 1; a feed inlet 2a is provided on the front side of the mounting cover 2; a discharge port 2b is provided on the rear side of the mounting cover 2; and the cleaning door 3 is hinged at the rear of the mounting cover 2;

[0026] It also includes a moving component, a mounting plate 4, a brush roller 5, a motor 6, a dust removal component and a self-cleaning component; the inner wall of the mounting cover 2 is connected to the moving component; two mounting plates 4 that are symmetrically distributed on the left and right are connected to the moving component; two brush rollers 5 are connected to the two mounting plates 4 for common rotation, and the two brush rollers 5 are respectively located on the upper surface and the lower surface of the paper; two motors 6 are bolted to the right mounting plate 4; the output shaft of each motor 6 is fixedly connected to a brush roller 5; the inner wall of the mounting cover 2 is connected to the dust removal component; the dust removal component is connected to the mounting plate 4; the self-cleaning component is connected to the dust removal component; the moving component is used to drive the mounting plate 4, the brush roller 5, the motor 6, the dust removal component and the self-cleaning component to move together.

[0027] The moving assembly includes an electric slide rail 101 and an electric slider 102; two electric slide rails 101 are bolted to the inner front wall and the inner rear wall of the mounting cover 2; an electric slider 102 is slidably connected to each electric slide rail 101; and two electric sliders 102 on the same side are fixedly connected to a mounting plate 4.

[0028] The dust removal assembly includes a cover 201, a rectangular telescopic tube 1 202, a centrifugal blower 203, a rectangular ventilation tube 204, a collection box 205 and a rectangular telescopic tube 2 206; the facing sides of the two mounting plates 4 are fixedly connected with the cover 201, and the two brush rollers 5 are located in the cover 201; a rectangular groove 201a is provided on the front side of the cover 201; a rectangular telescopic tube 1 202 is connected to the upper part of the cover 201, and the rectangular telescopic tube 1 202 is made of plastic; the centrifugal blower 203 is bolted to the upper part of the mounting cover 2; the centrifugal blower The input end of the fan 203 is connected to the rectangular telescopic tube 1 202; a rectangular ventilation tube 204 is fixedly connected to the left wall inside the installation cover 2; the output end of the centrifugal blower 203 is connected to the rectangular ventilation tube 204; a collecting box 205 is installed at the lower part of the installation cover 2; the rectangular ventilation tube 204 is connected to the collecting box 205; the upper part of the collecting box 205 is connected to a rectangular telescopic tube 206, which is made of plastic; the rectangular telescopic tube 206 is connected to the lower part of the cover shell 201; and a self-cleaning component is connected to the rear part of the cover shell 201.

[0029] The self-cleaning component includes a cleaning cylinder 301, a fan 302, a slide plate 303 and a folding cloth 304; two cleaning cylinders 301 symmetrically distributed in the upper and lower parts are fixedly connected to the rear part of the cover shell 201; the two cleaning cylinders 301 are respectively in contact with the surface of a brush roller 5; an opening 301a is provided on the cleaning cylinder 301, and the opening 301a is close to one side of the brush roller 5; a number of scraping grooves 301b distributed equidistantly are provided on the cleaning cylinder 301, and the opening 301a is connected to the scraping groove 301b; a number of scraping grooves 301b correspond to the bristles on the brush roller 5; a fan 302 is bolted to the right part of each cleaning cylinder 301; the left parts of the two cleaning cylinders 301 pass through the slide plate 303 together, and the two cleaning cylinders 301 are fixedly connected to the slide plate 303; the slide plate 303 is slidably connected to the rectangular ventilation pipe 204, and a folding cloth 304 is provided on the upper part of the slide plate 303; the folding cloth 304 is fixedly connected to the rectangular ventilation pipe 204.

[0030] The bristles on the brush roller 5 are fine wool and are used to remove debris and dust on the surface of the paper.

[0031] A sharp portion 301c is provided between two adjacent scraping grooves 301b on the cleaning cylinder 301, and the sharp portion 301c contacts the surface of the brush roller 5. The sharp portion 301c contacts the surface of the brush roller 5 to scrape off the debris at the roots of the bristles on the brush roller 5, thereby preventing the accumulation of more and more debris at the roots of the bristles on the brush roller 5, which causes the bristles on the brush roller 5 to harden, and further causes the paper to be damaged or scratched.

[0032] It also includes a mounting bracket 305 and a spacing sensor 306 ; the mounting bracket 305 is fixedly connected to the mounting plate 4 ; and the spacing sensor 306 is bolted to the mounting bracket 305 .

[0033] The rotation described below is from front to back, from top to bottom, and from right to left. When in use, the dust removal device for a paper machine is first placed in front of the winding mechanism of the paper machine. The operator puts the paper pulled out of the paper machine into the installation cover 2 from the feed port 2a, then passes through the rectangular groove 201a into the cover 201, passes between the two brush rollers 5, and then comes out from the discharge port 2b and is fixed on the winding mechanism. Then, after the motor 6, the electric slider 102, the centrifugal blower 203, the fan 302 and the spacing sensor 306 are connected to an external power source, the preparation work is completed.

[0034] During the paper conveying process, the centrifugal blower 203 is controlled to be turned on, and the air in the rectangular telescopic tube 202 is sucked into the centrifugal blower 203, so that the rectangular telescopic tube 202 generates suction, and then the gas is discharged into the rectangular ventilation tube 204 through the output end of the centrifugal blower 203, so that the gas in the rectangular ventilation tube 204 also flows downward, thereby forming a downward airflow, and then the two fans 302 are controlled to be turned on, forming an airflow from right to left in the corresponding cleaning cylinder 301, and then the two fans 302 are controlled to be turned on. The output shaft of the motor 6 rotates, driving the two brush rollers 5 to rotate respectively, wherein the upper brush roller 5 rotates clockwise, and the lower brush roller 5 rotates counterclockwise, and the bristles on the two brush rollers 5 are used to sweep the debris and dust on the surface of the paper forward together. At this time, the raised debris and dust are restricted by the cover 201, and the space for the debris and dust to fly is reduced, so that the suction force extending from the input end of the centrifugal blower 203 to the cover 201 will not decrease, thereby improving the efficiency of the centrifugal blower 203 in sucking away debris and dust;

[0035] Then, the debris and dust on the upper surface of the paper will be sucked away by the suction force generated by the centrifugal blower 203, and then blown into the rectangular ventilation pipe 204 from the output end of the centrifugal blower 203, and fall into the collection box 205 along the rectangular ventilation pipe 204 for collection, while the dust and debris on the lower surface of the paper will fall into the collection box 205 along the rectangular telescopic pipe 206 for collection after being swept forward by the bristles on the brush roller 5;

[0036] However, when the two brush rollers 5 work for a long time, a large amount of debris will be attached to the bristles of the brush rollers 5. The debris is attached to the roots of the bristles, making it impossible for the brush rollers 5 to throw it out during rotation, resulting in more and more debris, until the bristles become hard, damaging or scratching the paper, causing the paper to be unqualified. Therefore, taking one of the brush rollers 5 as an example, during the continuous rotation of the brush roller 5, the bristles on the brush roller 5 will enter the cleaning barrel 301 from the opening 301a, and the sharp portion 301c on the cleaning barrel 301 will continue to rotate. The brush roller 301 continues to contact the surface of the brush roller 5, and the sharp portion 301c is inserted into the root of the bristles on the brush roller 5 to scrape off the debris at the root of the bristles, which falls into the cleaning barrel 301. The bristles then enter the corresponding scraping grooves 301b, and through a number of scraping grooves 301b, not only can the debris attached to the bristles be scraped off, but the bristles can also be corrected and the bent bristles can be straightened. The debris that falls into the cleaning barrel 301 will be blown into the rectangular ventilation pipe 204 by the airflow in the cleaning barrel 301, and then enter the collection box 205 for collection.

[0037] When the paper is continuously conveyed backward and the amount of paper wound by the winding mechanism of the paper machine gradually increases, the paper passing through the mounting cover 2 also gradually rises. At this time, the paper is monitored in real time by the spacing sensor 306. As the paper rises, the electric slider 102 is controlled to move on the electric slide rail 101. The four electric sliders 102 drive the mounting plate 4, the brush roller 5, the motor 6, the cover 201, the cleaning cylinder 301, the fan 302, the slide plate 303, the mounting bracket 305 and the spacing sensor 306 to move upward together, forcing the rectangular telescopic tube 1 202 to compress, the rectangular telescopic tube 2 206 to stretch and the folding cloth 304 to fold, so as to prevent the paper from being continuously squeezed by the brush roller 5 during the winding process, resulting in damage or breakage of the paper. After the winding mechanism stops winding the paper, the four electric sliders 102 are controlled to stop moving. After the paper is cut, all the components are controlled to reset.

[0038] When it is necessary to clean the debris and dust in the collection box 205, the operator manually opens the cleaning door 3 and removes the components containing the debris and dust in the collection box 205 for cleaning.

[0039] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. A dust removal device for a paper machine, comprising a base, a mounting cover and a cleaning door; the base is fixedly connected with the mounting cover; a feed inlet is provided on the front side of the mounting cover; a discharge outlet is provided on the rear side of the mounting cover; a cleaning door is movably connected to the rear of the mounting cover; the characteristics are: It also includes a moving component, a mounting plate, a brush roller, a motor, a dust removal component and a self-cleaning component; the moving component is connected to the inner wall of the mounting cover; two mounting plates symmetrically distributed on the left and right are connected to the moving component; two brush rollers are connected to the two mounting plates for common rotation; two motors are fixedly connected to the right mounting plate; the output shaft of each motor is fixedly connected to a brush roller; the dust removal component for removing debris and dust on the surface of paper is connected to the inner wall of the mounting cover; the dust removal component is connected to the mounting plate; the self-cleaning component for cleaning the two brush rollers is connected to the dust removal component; the moving component is used to drive the mounting plate, the brush roller, the motor, the dust removal component and the self-cleaning component to move together.

2. A dust removal device for a papermaking machine according to claim 1, characterized in that: The moving assembly includes an electric slide rail and an electric slider; two electric slide rails are fixedly connected to the front wall and the rear wall of the installation cover; an electric slider is slidably connected to each electric slide rail; and two electric sliders on the same side are fixedly connected to a mounting plate.

3. A dust removal device for a papermaking machine according to claim 2, characterized in that: The dust removal component includes a cover shell, a rectangular telescopic tube 1, a centrifugal blower, a rectangular ventilation duct, a collection box and a rectangular telescopic tube 2; the cover shell is fixedly connected to the opposite sides of the two mounting plates, and the two brush rollers are located in the cover shell; a rectangular groove is opened on the front side of the cover shell; a rectangular telescopic tube 1 is arranged on the upper part of the cover shell; a centrifugal blower is fixedly connected to the upper part of the mounting cover; the input end of the centrifugal blower is connected to the rectangular telescopic tube 1; a rectangular ventilation duct is fixedly connected to the left wall inside the mounting cover; the output end of the centrifugal blower is connected to the rectangular ventilation duct; a collection box is installed at the lower part of the mounting cover; the rectangular ventilation duct is connected to the collection box; a rectangular telescopic tube 2 is arranged on the upper part of the collection box; the rectangular telescopic tube 2 is connected to the lower part of the cover shell; and a self-cleaning component is connected to the rear part of the cover shell.

4. A dust removal device for a papermaking machine according to claim 3, characterized in that: The self-cleaning component includes a cleaning cylinder, a fan, a slide plate and a folding cloth; two cleaning cylinders symmetrically distributed up and down are fixedly connected to the rear of the cover; the two cleaning cylinders are respectively in contact with the surface of a brush roller; an opening is provided on the cleaning cylinder, and the opening is close to one side of the brush roller; a plurality of equally distributed scraping grooves are provided on the cleaning cylinder, and the opening is connected to the scraping groove; the plurality of scraping grooves correspond to the bristles on the brush roller; a fan is fixedly connected to the right part of each cleaning cylinder; the left parts of the two cleaning cylinders pass through the slide plate together, and the two cleaning cylinders are fixedly connected to the slide plate; the slide plate is slidably connected to the rectangular ventilation pipe, and a folding cloth is provided on the upper part of the slide plate; the folding cloth is fixedly connected to the rectangular ventilation pipe.

5. A dust removal device for a papermaking machine according to any one of claims 1 to 4, characterized in that: The bristles on the brush roller are fine wool.

6. A dust removal device for a papermaking machine according to claim 5, characterized in that: A sharp portion is arranged between two adjacent scraping grooves on the cleaning cylinder, and the sharp portion contacts the surface of the brush roller.

7. A dust removal device for a papermaking machine according to claim 6, characterized in that: It also includes a mounting bracket and a spacing sensor; the mounting bracket is fixedly connected to the mounting plate; and the spacing sensor is fixedly connected to the mounting bracket.

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