Headbox convenient for protecting pulp outlet pipe

Abstract

The utility model discloses a headbox convenient for protecting a pulp outlet pipe, which comprises a headbox main body, the inner wall of the headbox main body is fixedly connected with a pulp inlet pipe, the inner wall of the headbox main body is fixedly connected with a pulp outlet pipe, pulp is discharged through the pulp outlet pipe after pulp fibers are dispersed by the headbox main body, and when the pulp outlet pipe needs to be cleaned, the pulp inlet pipe is fixedly connected with the pulp outlet pipe. A servo motor is started to drive a limiting fixing assembly and a cleaning mechanism to move downwards to the position right in front of a pulp outlet pipe through a threaded rod and a threaded sleeve, a moving mechanism is started to drive the limiting fixing assembly and the cleaning mechanism to move backwards to enter the pulp outlet pipe, and a driving assembly is started to drive the cleaning mechanism to rotate along the inner wall of the pulp outlet pipe to conduct pulp cleaning work. The aim of automatically cleaning and protecting the pulp outlet pipe of the headbox is achieved, the problem that pulp is not discharged uniformly or even blocked due to the fact that pulp is adhered to and left in the pulp outlet pipe is solved, and the use stability of the headbox is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of headboxes, in particular to a headbox which is convenient for protecting a pulp outlet pipe. Background Art

[0002] The headbox is a key component of modern paper machines. Its structure and performance play a decisive role in paper sheet formation and quality. It effectively disperses fibers. High-turbulence headboxes generate high-intensity micro-turbulence, effectively dispersing fibers and preventing fiber sedimentation and re-aggregation, thereby significantly improving paper sheet strength.

[0003] During the long-term pulp conveying process of the headbox, the pulp has a certain degree of adhesion. After the headbox is shut down, the pulp will solidify and accumulate, making it easy for the pulp to adhere to and accumulate on the inner wall of the headbox discharge pipe. When the pulp adheres too much, it will cause the discharge flow of the discharge pipe to be uneven, and even cause the discharge pipe to be blocked, which greatly reduces the stability of the headbox. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a headbox that is convenient for protecting a pulp outlet pipe, and is used to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A headbox for conveniently protecting a pulp discharge pipe comprises a headbox body, an inner wall of the headbox body being fixedly connected to a pulp inlet pipe, an inner wall of the headbox body being fixedly connected to a pulp discharge pipe, a surface of the headbox body being fixedly connected to a telescopic fixing plate, an inner wall of the telescopic fixing plate being fixedly connected to a servo motor, an output end of the servo motor being fixedly connected to a threaded rod, a surface of the threaded rod being threadedly connected to a threaded sleeve, a surface of the headbox body being provided with a moving mechanism, a front face of the threaded sleeve being provided with a limiting fixing assembly, a front face of the headbox body being provided with a cleaning mechanism, and a front face of the headbox body being provided with a driving assembly.

[0007] Preferably, the moving mechanism consists of an electric push rod and a connecting block, the electric push rod is fixedly connected to the surface of the headbox body, and the connecting block is fixedly connected to the output end of the electric push rod.

[0008] Preferably, the limiting fixing assembly consists of a fixing plate and a limiting slide rail, the fixing plate is fixedly connected to the front face of the threaded sleeve, the limiting slide rail is fixedly connected to the surface of the connecting block, and the inner wall of the limiting slide rail is slidably connected to the surface of the fixing plate.

[0009] Preferably, the cleaning mechanism consists of a fixed shaft, a scraper and a cleaning brush, the fixed shaft is rotatably connected to the inner wall of the fixed plate, the scraper is fixedly connected to the surface of the fixed shaft, and the scraper is slidably connected to the inner wall of the slurry outlet pipe, the cleaning brush is fixedly connected to the surface of the fixed shaft, and the cleaning brush is slidably connected to the inner wall of the slurry outlet pipe.

[0010] Preferably, the driving assembly consists of a driving motor, a driving wheel, a double-sided tooth transmission belt, a driven wheel and an auxiliary wheel. The driving motor is fixedly connected to the back of the fixed plate, the driving wheel is fixedly connected to the output end of the driving motor, the double-sided tooth transmission belt is meshed with the inner wall of the driving wheel, the driven wheel is fixedly connected to the surface of the fixed shaft, and the inner wall of the driven wheel is meshed with the double-sided tooth transmission belt, the auxiliary wheel is fixedly connected to the inner wall of the fixed plate, and the inner wall of the auxiliary wheel is meshed with the double-sided tooth transmission belt.

[0011] Preferably, the fixing plate is rectangular and made of metal material.

[0012] Preferably, there are multiple fixed shafts, and all of the multiple fixed shafts are rotatably connected to the inner wall of the fixed plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the headbox is convenient for protecting the pulp discharge pipe, and the headbox main body disperses the pulp fibers and then discharges the pulp through the pulp discharge pipe. When the pulp discharge pipe needs to be cleaned, the servo motor is started to drive the limit fixing component and the cleaning mechanism to move downward to the front of the pulp discharge pipe through the threaded rod and the threaded sleeve, the moving mechanism is started to drive the limit fixing component and the cleaning mechanism to move backward into the pulp discharge pipe, and the driving component is started to drive the cleaning mechanism to rotate along the inner wall of the pulp discharge pipe to perform pulp cleaning work; the goal of facilitating automatic cleaning and protection of the pulp discharge pipe of the headbox is achieved, and the problem of uneven pulp discharge or even blockage in the pulp discharge pipe caused by pulp adhesion and residue inside the pulp discharge pipe is avoided, thereby greatly improving the stability of the headbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the structural survey drawing of the utility model;

[0015] Figure 2 This is an enlarged view of the structure A of the utility model;

[0016] Figure 3 This is a partial structural cross-sectional view of the utility model;

[0017] Figure 4 This is an enlarged view of the structure B of the utility model.

[0018] In the figure: 1. Headbox body; 2. Slurry inlet pipe; 3. Slurry outlet pipe; 4. Telescopic fixed plate; 5. Servo motor; 6. Threaded rod; 7. Threaded sleeve; 8. Electric push rod; 9. Connecting block; 10. Fixed plate; 11. Limiting slide rail; 12. Fixed shaft; 13. Scraper; 14. Cleaning brush; 15. Driving motor; 16. Driving wheel; 17. Double-sided tooth transmission belt; 18. Driven wheel; 19. Auxiliary wheel. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Reference Figure 1-4A headbox for protecting a pulp discharge pipe includes a headbox body 1, a pulp inlet pipe 2 is fixedly connected to the inner wall of the headbox body 1, a pulp discharge pipe 3 is fixedly connected to the inner wall of the headbox body 1, a telescopic fixing plate 4 is fixedly connected to the surface of the headbox body 1, a servo motor 5 is fixedly connected to the inner wall of the telescopic fixing plate 4, a threaded rod 6 is fixedly connected to the output end of the servo motor 5, a threaded sleeve 7 is threadedly connected to the surface of the threaded rod 6, a moving mechanism is provided on the surface of the headbox body 1, and a limited position fixing group is provided on the front of the threaded sleeve 7 The cleaning brush 14 is fixedly connected to the surface of the fixed shaft 12, and the scraper 13 is slidably connected to the inner wall of the pulp discharge pipe 3, and the cleaning brush 14 is fixedly connected to the surface of the fixed shaft 12, and the cleaning brush 14 is slidably connected to the inner wall of the pulp discharge pipe 3 for cleaning the pulp, which is convenient for scraping and brushing the pulp at the same time, thereby improving the cleaning efficiency and avoiding the problem of incomplete pulp cleaning. A driving assembly is provided on the front side of the headbox body 1, and the driving assembly consists of a driving motor 15, a driving wheel 16, a double-sided toothed transmission belt 17, a driven wheel 18 and an auxiliary wheel 19. The driving motor 15 is fixedly connected to the back side of the fixed plate 10 The driving wheel 16 is fixedly connected to the output end of the driving motor 15, the double-sided tooth transmission belt 17 is meshed with the inner wall of the driving wheel 16, the driven wheel 18 is fixedly connected to the surface of the fixed shaft 12, and the inner wall of the driven wheel 18 is meshed with the double-sided tooth transmission belt 17, the auxiliary wheel 19 is fixedly connected to the inner wall of the fixed plate 10, and the inner wall of the auxiliary wheel 19 is meshed with the double-sided tooth transmission belt 17, which is used to simultaneously drive multiple cleaning mechanisms to rotate simultaneously, making it convenient to clean multiple pulp discharge pipes 3 at the same time, thereby improving the cleaning range and synchronization.

[0021] Specifically, the moving mechanism consists of an electric push rod 8 and a connecting block 9. The electric push rod 8 is fixedly connected to the surface of the pulp box body 1, and the connecting block 9 is fixedly connected to the output end of the electric push rod 8, which is used to drive the cleaning mechanism to move backward into the pulp outlet pipe 3 to facilitate automatic cleaning of the pulp.

[0022] Specifically, the limiting fixing assembly consists of a fixing plate 10 and a limiting slide rail 11. The fixing plate 10 is rectangular and made of metal material. The fixing plate 10 made of metal material has higher strength, is not easily deformed or damaged after being subjected to force, and is more durable. The fixing plate 10 is fixedly connected to the front of the threaded sleeve 7, and the limiting slide rail 11 is fixedly connected to the surface of the connecting block 9, and the inner wall of the limiting slide rail 11 is slidably connected to the surface of the fixing plate 10, which is used to assist the cleaning mechanism in vertical lifting and moving, thereby improving the lifting accuracy of the cleaning mechanism and avoiding the problem that the cleaning mechanism cannot enter the slurry discharge pipe 3.

[0023] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0024] During use: first, the pulp flows into the headbox body 1 through the pulp inlet pipe 2, and after the pulp fibers are dispersed by the headbox body 1, the pulp is discharged through the pulp outlet pipe 3. When the residual pulp stuck inside the pulp outlet pipe 3 needs to be cleaned, the servo motor 5 is first started to drive the threaded rod 6 to rotate, and the threaded rod 6 is threadedly connected to the threaded sleeve 7 to drive the fixed plate 10 to slide downward along the inner wall of the limit slide 11. The movement of the fixed plate 10 drives the fixed shaft 12 to move downward to the front of the pulp outlet pipe 3, and the electric push rod 8 is started to drive the connecting block 9 and the limit slide 11 backward. Movement, by the movement of the limiting slide rail 11 and the extension and retraction of the telescopic fixed plate 4, the fixed plate 10 and the fixed shaft 12 can be driven to move backward, and the scraper 13 and the cleaning brush 14 are driven to move backward into the pulp discharge pipe 3 through the movement of the fixed shaft 12, and the drive motor 15 is started to drive the driving wheel 16 to rotate, and the double-sided toothed transmission belt 17 is driven to rotate through the rotation of the driving wheel 16. Through the engagement of the double-sided toothed transmission belt 17 with the driven wheel 18, the fixed shaft 12, the scraper 13 and the cleaning brush 14 can be driven to rotate along the inner wall of the pulp discharge pipe 3 to perform pulp cleaning work.

[0025] To sum up, in the headbox which is convenient for protecting the pulp discharge pipe, the headbox main body 1 disperses the pulp fibers and then discharges the pulp through the pulp discharge pipe 3. When the pulp discharge pipe 3 needs to be cleaned, the servo motor 5 is started to drive the limit fixing component and the cleaning mechanism to move downward to the front of the pulp discharge pipe 3 through the threaded rod 6 and the threaded sleeve 7, the moving mechanism is started to drive the limit fixing component and the cleaning mechanism to move backward into the pulp discharge pipe 3, and the driving component is started to drive the cleaning mechanism to rotate along the inner wall of the pulp discharge pipe 3 to clean the pulp, thereby achieving the goal of facilitating automatic cleaning and protection of the pulp discharge pipe of the headbox, avoiding the problem of uneven pulp discharge or even blockage in the pulp discharge pipe due to pulp adhesion and residue inside the pulp discharge pipe, greatly improving the stability of the headbox, and being used to solve the problems raised in the above-mentioned background technology.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A headbox for protecting a pulp outlet pipe, comprising a headbox body (1), characterized in that: The inner wall of the headbox body (1) is fixedly connected to a pulp inlet pipe (2), the inner wall of the headbox body (1) is fixedly connected to a pulp outlet pipe (3), the surface of the headbox body (1) is fixedly connected to a telescopic fixing plate (4), the inner wall of the telescopic fixing plate (4) is fixedly connected to a servo motor (5), the output end of the servo motor (5) is fixedly connected to a threaded rod (6), the surface of the threaded rod (6) is threadedly connected to a threaded sleeve (7), the surface of the headbox body (1) is provided with a moving mechanism, the front face of the threaded sleeve (7) is provided with a limited position fixing component, the front face of the headbox body (1) is provided with a cleaning mechanism, and the front face of the headbox body (1) is provided with a driving component.

2. A headbox for protecting a pulp outlet pipe according to claim 1, characterized in that: The moving mechanism consists of an electric push rod (8) and a connecting block (9); the electric push rod (8) is fixedly connected to the surface of the headbox body (1); and the connecting block (9) is fixedly connected to the output end of the electric push rod (8).

3. A headbox for protecting a pulp outlet pipe according to claim 1, characterized in that: The limiting fixing assembly consists of a fixing plate (10) and a limiting slide rail (11), wherein the fixing plate (10) is fixedly connected to the front face of the threaded sleeve (7), the limiting slide rail (11) is fixedly connected to the surface of the connecting block (9), and the inner wall of the limiting slide rail (11) is slidably connected to the surface of the fixing plate (10).

4. A headbox for protecting a pulp outlet pipe according to claim 3, characterized in that: The cleaning mechanism consists of a fixed shaft (12), a scraper (13) and a cleaning brush (14); the fixed shaft (12) is rotatably connected to the inner wall of the fixed plate (10); the scraper (13) is fixedly connected to the surface of the fixed shaft (12); and the scraper (13) is slidably connected to the inner wall of the pulp discharge pipe (3); the cleaning brush (14) is fixedly connected to the surface of the fixed shaft (12); and the cleaning brush (14) is slidably connected to the inner wall of the pulp discharge pipe (3).

5. A headbox for protecting a pulp outlet pipe according to claim 3, characterized in that: The driving assembly is composed of a driving motor (15), a driving wheel (16), a double-sided toothed transmission belt (17), a driven wheel (18) and an auxiliary wheel (19), wherein the driving motor (15) is fixedly connected to the back of the fixed plate (10), the driving wheel (16) is fixedly connected to the output end of the driving motor (15), the double-sided toothed transmission belt (17) is meshed with the inner wall of the driving wheel (16), the driven wheel (18) is fixedly connected to the surface of the fixed shaft (12), and the inner wall of the driven wheel (18) is meshed with the double-sided toothed transmission belt (17), the auxiliary wheel (19) is fixedly connected to the inner wall of the fixed plate (10), and the inner wall of the auxiliary wheel (19) is meshed with the double-sided toothed transmission belt (17).

6. A headbox for protecting a pulp outlet pipe according to claim 3, characterized in that: The fixing plate (10) is rectangular and is made of metal material.

7. A headbox for protecting a pulp outlet pipe according to claim 4, characterized in that: There are multiple fixed shafts (12), and all of the multiple fixed shafts (12) are rotatably connected to the inner wall of the fixed plate (10).

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