Primary pulp filtering device for tissue paper production

Abstract

The utility model relates to a raw pulp filtering device for tissue paper production, which belongs to the technical field of tissue paper production and comprises a base and a filter cartridge arranged at the top of the base, a support frame for supporting the filter cartridge is fixedly connected between the base and the filter cartridge, a sealing cover plate is arranged at the top of the filter cartridge, and the sealing cover plate is fixedly connected with the base. A centrifugal filtering mechanism for filtering tissue paper raw pulp is arranged in the filtering cylinder and comprises a filtering inner cylinder which is rotationally connected to the bottom of the sealing cover plate and extends into the filtering cylinder. According to the raw pulp filtering device for tissue paper production, a driving motor is arranged to drive a driving shaft to rotate, and a filtering inner cylinder and a powerful magnet are arranged, so that the filtering inner cylinder and the driving shaft can be magnetically attracted and fixed, and the driving motor can drive the filtering inner cylinder to rotate at the same time; furthermore, the tissue paper raw pulp in the filtering inner cylinder can be filtered under the centrifugal action, so that the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thin paper production, in particular to a raw pulp filtering device for thin paper production. Background Technique

[0002] Thin paper is a kind of high-grade cultural industrial paper with quite high production difficulty. Its technical characteristics are mainly as follows: it has high physical strength, excellent uniformity and transparency, and good surface properties, being delicate, flat, smooth, without crepe, and having good printability. Due to its light weight and easy plasticity, thin paper has a wide range of applications in the packaging field. For example, in food packaging, thin paper can be used to package small foods such as candies and biscuits, providing good protection and being convenient to carry. Thin paper is commonly used in the packaging of northern fruits. Because it was initially mainly used to package Sydney pears, it is also called Sydney paper.

[0003] In the process of thin paper production, a raw pulp filtering device is required. The Chinese utility model patent with the publication number CN216986552U discloses a raw pulp filtering device for thin paper production, which includes a stirring and filtering barrel, a sealing cover body, and a stirring anti-blocking component. The sealing cover body is covered on the stirring and filtering barrel, and the stirring anti-blocking component is installed on the sealing cover. The stirring and filtering barrel includes an outer barrel and a filtering inner barrel, and the filtering inner barrel is placed inside the outer barrel. This utility model drives the stirring rod to stir by a driving motor to prevent the slurry from forming precipitation and being unable to be completely filtered after a long time of filtration. Moreover, when the stirring rod rotates, it will drive two scraping plates to rotate, so that the two scraping plates scrape along the inner wall of the filtering inner barrel to scrape off the impurities and larger-particle slurries that have been filtered down, preventing blockage. And after the filtration is completed, the impurities and larger-particle slurries will remain in the filtering inner barrel, and it is only necessary to open the sealing cover and take out the filtering inner barrel for cleaning, thus facilitating cleaning.

[0004] However, during the use of this utility model, since the filtering inner barrel cannot rotate, when the thin paper raw pulp enters the filtering inner barrel, it can only be filtered by the action of gravity and stirring, which may lead to a relatively low filtering efficiency, affecting the production efficiency of thin paper and not meeting the production requirements. Therefore, a raw pulp filtering device for thin paper production is proposed to solve the problems raised above. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a raw pulp filtering device for thin paper production, which has the advantage of being convenient for centrifugal filtration, and solves the problem that when the thin paper raw pulp enters the filtering inner barrel, it can only be filtered by the action of gravity and stirring due to the non-rotation of the filtering inner barrel, which may lead to a relatively low filtering efficiency, affecting the production efficiency of thin paper and not meeting the production requirements.

[0006] To achieve the above object, the present utility model provides the following technical solution: A raw pulp filtering device for thin paper production, comprising a base and a filtering cylinder disposed on the top of the base. A support frame for supporting the filtering cylinder is fixedly connected between the base and the filtering cylinder. A sealing cover plate is disposed on the top of the filtering cylinder. An centrifugal filtering mechanism for filtering the thin paper raw pulp is disposed inside the filtering cylinder;

[0007] The centrifugal filtering mechanism includes a filtering inner cylinder rotatably connected to the bottom of the sealing cover plate and extending into the filtering cylinder. A driving motor is fixedly installed at the bottom of the filtering cylinder. A driving shaft extending into the filtering cylinder is fixedly connected to the output shaft of the driving motor. A strong magnet magnetically attracted to the driving shaft is fixedly connected to the bottom of the filtering inner cylinder.

[0008] Further, a limiting slider extending into the sealing cover plate is fixedly connected to the upper surface of the filtering inner cylinder. A limiting sliding groove adapted to the limiting slider is formed on the lower surface of the sealing cover plate.

[0009] Further, filtering small holes communicating with the inside thereof are formed on the outer surface of the filtering inner cylinder. A blanking door is hinged to the outside of the filtering inner cylinder.

[0010] Further, a servo motor is fixedly installed on the top of the sealing cover plate. A rotating shaft extending into the filtering cylinder is fixedly connected to the output shaft of the servo motor. Stirring blades are fixedly installed on the outside of the rotating shaft.

[0011] Further, a raw pulp feed pipe communicating with the inside of the filtering inner cylinder is fixedly connected to the top of the sealing cover plate. A discharge pipe extending into the inside thereof is fixedly connected to the bottom of one side of the filtering cylinder.

[0012] Further, fixing blocks are fixedly connected to one side of both the filtering cylinder and the sealing cover plate. A fixing bolt extending into the bottom fixing block is threadedly connected to the top of the top fixing block.

[0013] Further, a support base is fixedly connected to the bottom of the base. The number of the support bases is four, and the four support bases are evenly distributed at the bottom of the base.

[0014] Compared with the prior art, the present utility model provides a raw pulp filtering device for thin paper production, which has the following beneficial effects:

[0015] 1. For the raw pulp filtering device for thin paper production, by setting a driving motor to drive the driving shaft to rotate, and then by setting a filtering inner cylinder and a strong magnet, the filtering inner cylinder can be magnetically fixed to the driving shaft, so that the driving motor can drive the filtering inner cylinder to rotate simultaneously, and then the thin paper raw pulp inside the filtering inner cylinder can be filtered by centrifugal action, improving the filtering efficiency.

[0016] 2. The raw pulp filtering device for thin paper production can stir the thin paper raw pulp inside the filtering inner cylinder by setting a servo motor to drive the rotating shaft and stirring blades, avoiding the precipitation or solidification of the thin paper raw pulp. At the same time, combined with centrifugal filtration, it can improve the filtration efficiency, solving the problem that since the filtering inner barrel cannot rotate, when the thin paper raw pulp enters the filtering inner barrel, it can only be filtered by the action of gravity and stirring, which may lead to low filtration efficiency, affecting the production efficiency of thin paper and not meeting the production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural cross-sectional view of the present utility model;

[0018] Figure 2 is the present utility model Figure 1 an enlarged structural schematic diagram of A shown;

[0019] Figure 3 is a structural top view of the sealing cover plate of the present utility model;

[0020] Figure 4 is a three-dimensional structural view of the filtering cylinder of the present utility model.

[0021] In the figure: 1, base; 2, filtering cylinder; 3, support frame; 4, filtering inner cylinder; 5, driving motor; 6, driving shaft; 7, strong magnet; 8, sealing cover plate; 9, servo motor; 10, rotating shaft; 11, stirring blade; 12, raw pulp feed pipe; 13, discharge pipe; 14, fixing block; 15, fixing bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 4, A raw pulp filtering device for thin paper production in this embodiment includes a base 1 and a filtering cylinder 2 arranged on the top of the base 1. A support frame 3 for supporting the filtering cylinder 2 is fixedly connected between the base 1 and the filtering cylinder 2. A sealing cover plate 8 is arranged on the top of the filtering cylinder 2. An centrifugal filtering mechanism for filtering the thin paper raw pulp is arranged inside the filtering cylinder 2. The centrifugal filtering mechanism includes a filtering inner cylinder 4 rotatably connected to the bottom of the sealing cover plate 8 and extending into the filtering cylinder 2. A driving motor 5 is fixedly installed at the bottom of the filtering cylinder 2. A driving shaft 6 extending into the filtering cylinder 2 is fixedly connected to the output shaft of the driving motor 5. A strong magnet 7 magnetically attracted to the driving shaft 6 is fixedly connected to the bottom of the filtering inner cylinder 4.

[0024] Among them, a limiting slider extending into the sealing cover plate 8 is fixedly connected to the upper surface of the filtering inner cylinder 4. A limiting sliding groove adapted to the limiting slider is opened on the lower surface of the sealing cover plate 8. Filtering small holes communicating with its interior are opened on the outer surface of the filtering inner cylinder 4. A blanking door is hinged to the outside of the filtering inner cylinder 4.

[0025] It should be noted that the shape of the limiting slider is T-shaped. By setting the strong magnet 7, on the one hand, the driving motor 5 can drive the filtering inner cylinder 4 to rotate, and on the other hand, it is convenient for the staff to remove the sealing cover plate 8 and the filtering inner cylinder 4 together, facilitating the cleaning of impurities.

[0026] In this embodiment, a servo motor 9 is fixedly installed on the top of the sealing cover plate 8. A rotating shaft 10 extending into the filtering cylinder 2 is fixedly connected to the output shaft of the servo motor 9. Stirring blades 11 are fixedly installed on the outside of the rotating shaft 10. A raw pulp feed pipe 12 communicating with the interior of the filtering inner cylinder 4 is fixedly connected to the top of the sealing cover plate 8. A discharge pipe 13 extending into its interior is fixedly connected to the bottom of one side of the filtering cylinder 2.

[0027] Among them, a bearing adapted to the rotating shaft 10 is fixedly installed inside the sealing cover plate 8. A controller is fixedly installed on the front of the filtering cylinder 2. By setting the servo motor 9 to drive the rotating shaft 10 and the stirring blades 11 to rotate, the thin paper raw pulp inside the filtering inner cylinder 4 can be stirred to prevent the thin paper raw pulp from precipitating or solidifying, and at the same time, the filtering efficiency can be improved in cooperation with centrifugal filtering.

[0028] In this embodiment, fixing blocks 14 are fixedly connected to one side of both the filtering cylinder 2 and the sealing cover plate 8. A fixing bolt 15 extending into the bottom fixing block 14 is threadedly connected to the top of the top fixing block 14. The number of fixing bolts 15 is five. By setting the fixing blocks 14 and the fixing bolts 15, it is convenient to disassemble and assemble the sealing cover plate 8.

[0029] In this embodiment, a support base 16 is fixedly connected to the bottom of the base 1. The number of support bases 16 is four, and the four support bases 16 are evenly distributed at the bottom of the base 1.

[0030] The working principle of the above embodiments is as follows:

[0031] First, the thin paper pulp is injected into the interior of the filter inner cylinder 4 through the pulp feed pipe 12. At this time, the drive motor 5 and the servo motor 9 are started simultaneously. On the one hand, the drive motor 5 drives the drive shaft 6 and the filter inner cylinder 4 to rotate simultaneously, and the thin paper pulp is filtered by using the centrifugal principle. On the other hand, the servo motor 9 drives the stirring blade 11 to rotate to stir the thin paper pulp, improving the filtration efficiency. The filtered thin paper pulp is discharged and collected through the discharge pipe 13. Subsequently, the staff removes the sealing cover plate 8 and the filter inner cylinder 4, opens the blanking door, and cleans the impurities inside the filter inner cylinder 4.

[0032] The electrical components mentioned in the text are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer for control, and the existing publicly disclosed electrical connection technologies are not described in detail in the text.

[0033] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0034] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stock pulp filtering device for thin paper production, comprising a base (1) and a filtering cylinder (2) arranged on the top of the base (1), characterized in that: A support frame (3) for supporting the filter cartridge (2) is fixedly connected between the base (1) and the filter cartridge (2). A sealing cover plate (8) is arranged at the top of the filter cartridge (2). An internal centrifugal filtering mechanism for filtering thin paper pulp is arranged inside the filter cartridge (2). The centrifugal filtering mechanism includes a filter inner cylinder (4) rotatably connected to the bottom of the sealing cover plate (8) and extending into the filter cartridge (2). A driving motor (5) is fixedly installed at the bottom of the filter cartridge (2). A driving shaft (6) extending into the filter cartridge (2) is fixedly connected to the output shaft of the driving motor (5). A strong magnet (7) magnetically attracted to the driving shaft (6) is fixedly connected to the bottom of the filter inner cylinder (4).

2. The stock pulp filtering device for thin paper production according to claim 1, characterized in that: A limiting slider extending into the sealing cover plate (8) is fixedly connected to the upper surface of the filter inner cylinder (4). A limiting chute adapted to the limiting slider is formed on the lower surface of the sealing cover plate (8).

3. The stock pulp filtering device for thin paper production according to claim 1, characterized in that: Filtering small holes communicating with the inside thereof are formed on the outer surface of the filter inner cylinder (4). A blanking door is hinged to the outside of the filter inner cylinder (4).

4. The stock pulp filtering device for thin paper production according to claim 1, wherein: A servo motor (9) is fixedly installed at the top of the sealing cover plate (8). A rotating shaft (10) extending into the filter cartridge (2) is fixedly connected to the output shaft of the servo motor (9). Stirring blades (11) are fixedly installed on the outside of the rotating shaft (10).

5. The stock pulp filtering device for thin paper production according to claim 1, characterized in that: A raw pulp feed pipe (12) communicating with the inside of the filter inner cylinder (4) is fixedly connected to the top of the sealing cover plate (8). A discharge pipe (13) extending into the filter cartridge (2) is fixedly connected to the bottom of one side of the filter cartridge (2).

6. The stock pulp filtering device for thin paper production according to claim 1, wherein: Fixing blocks (14) are fixedly connected to one side of the filter cartridge (2) and the sealing cover plate (8). A fixing bolt (15) extending into the fixing block (14) at the bottom is threadedly connected to the top of the fixing block (14) at the top.

7. The stock pulp filtering device for thin paper production according to claim 1, wherein: A support base (16) is fixedly connected to the bottom of the base (1). The number of the support bases (16) is four, and the four support bases (16) are evenly distributed at the bottom of the base (1).

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