Crushing mechanism in papermaking beater

Abstract

The invention discloses a crushing mechanism in a papermaking beater, which belongs to the technical field of papermaking equipment and comprises an equipment box, a crushing box is arranged at the top of the equipment box, crushing rollers are arranged on two sides in the crushing box, a grinding box is arranged in the equipment box, a grinding disc is arranged in the grinding box, and a driving motor is arranged at the top of the equipment box. A transmission shaft is arranged at the output shaft end of the driving motor, a filter plate is arranged at the bottom end of the interior of the equipment box, an inclined cutter plate is arranged at the bottom end of the transmission shaft, a first scraper is arranged on one side of the top of a mesh of the filter plate, and a second scraper is arranged below the inclined cutter plate. The raw materials are preliminarily crushed, then the preliminarily crushed raw materials are ground by the grinding disc, and finally, the ground raw materials are sheared through the second scraper at the bottommost layer and the first scraper arranged on one side of the meshes of the filter plate, so that the ground raw materials are sheared into short fibers with the size of the composite meshes, the consistency of the sizes of the raw materials is guaranteed, and the rate of finished products of the fibers is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of papermaking equipment, and in particular relates to a crushing mechanism in a papermaking pulping machine. Background Art

[0002] Paper is the most commonly used item in our daily life. It is a powerful tool and material in industry, agriculture, national defense industry, production life, as well as in exchanging ideas, spreading culture, developing science and technology, and production. Paper is a sheet-like fiber product used for writing, printing, painting or packaging. In the papermaking process, the raw materials need to be pulped. The process of using physical methods to mechanically or fluidly treat the pulp fibers in water so that the fibers are subjected to shear force, the fiber morphology is changed, and the pulp acquires certain characteristics to ensure that the expected quality requirements are met is called pulping. In modern industrialized production, there are various fiber raw materials that need to be made into pulp, and there is a great demand for mechanical pulping. At this time, the pulping machine came into being.

[0003] At present, the existing papermaking pulping machines need to crush the papermaking raw materials before pulping. The traditional crushing mechanism crushes the raw materials into particles of different sizes, which makes it difficult to separate the fibers, resulting in a waste of raw materials. In addition, due to the different sizes of the crushed particles, the paper is relatively rough, and the crushed raw materials are easy to adhere to the inner wall of the equipment, resulting in the inability to better collect the raw materials, resulting in part of the raw materials being wasted. For this reason, we propose a crushing mechanism in a papermaking pulping machine. Summary of the invention

[0004] The object of the present invention is to provide a crushing mechanism in a papermaking pulping machine to solve the existing problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a crushing mechanism in a papermaking pulping machine, comprising an equipment box, a crushing box and a grinding box, wherein a crushing box is fixedly installed on one side of the top of the equipment box, crushing rollers are arranged on both sides of the inner top of the crushing box, a feed inlet is arranged on the top of the crushing box, a bottom end of the crushing box is extended to the inner top of the equipment box through a material guide pipe, a grinding box is arranged at the inner top of the equipment box, a conical grinding disc is arranged inside the grinding box, the material guide pipe extends to the inner top of the grinding box, and a driving motor is fixedly installed at the center of the top of the equipment box. The machine comprises a transmission shaft, the output shaft end of the driving motor extends to the interior of the equipment box and is fixedly installed with a transmission shaft, the transmission shaft passes through the grinding disc and is fixedly connected to the grinding disc, a feeding port is provided at the bottom of the grinding box, a filter plate is provided at the bottom end of the interior of the equipment box, the top center position of the filter plate is movably connected to the bottom of the transmission shaft through a bearing, a multi-layer inclined knife plate is provided at the outer periphery of the bottom end of the transmission shaft, a first scraper is obliquely provided on one side of the top of the mesh of the filter plate, a second scraper is fixedly embedded under the inclined knife plate, and a certain distance is left between the second scraper on the bottom layer of the inclined knife plate and the first scraper.

[0006] Preferably, the end of the inclined blade plate on the same side is fixedly connected to a connecting rod by welding, a telescopic block is slidably provided on the side of the connecting rod away from the inclined blade plate, an ejection spring is provided on the side of the telescopic block extending to the inside of the connecting rod, a scraper is fixedly installed on the outer end of the telescopic block, and the outer side of the scraper is in close contact with the bottom inner wall of the equipment box.

[0007] Preferably, a corrugated rubber sleeve is provided between the scraper and the connecting rod, the telescopic block is provided inside the corrugated rubber sleeve, and the two ends of the corrugated rubber sleeve are respectively fixedly connected to the scraper and the connecting rod by sealing waterproof glue.

[0008] Preferably, limiting grooves are provided on the inner wall surfaces on both sides of the connecting rod, and limiting blocks are provided on both sides of one end of the telescopic block extending to the inside of the connecting rod. The telescopic block is slidingly connected to the inner wall of the connecting rod through the limiting grooves and the limiting blocks.

[0009] Preferably, a gear box is provided on the outer side of the crushing box, and two transmission gears meshing with each other are provided inside the gear box. The two transmission gears are respectively fixedly connected to one end of the two crushing rollers. A crushing motor is fixedly installed on the outer side of the gear box, and the end of the output shaft of the crushing motor is fixedly connected to one of the transmission gears.

[0010] Preferably, a protective cover is provided on one side of the top of the feed port, and the protective cover is fixedly mounted on the top of the crushing box by welding.

[0011] Preferably, a discharge port is provided at the bottom of the equipment box, and the discharge port extends to the inner bottom end of the equipment box and communicates with the interior thereof.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The papermaking raw materials are preliminarily crushed by the crushing roller in the crushing box, and then the preliminarily crushed raw materials are ground by the grinding disc in the grinding box to make them softer and further reduce the volume of the raw materials. Then, the inclined knife plate cooperates with the second scraper to cut the raw materials in the falling process under the rotating state. Finally, the second scraper at the bottom layer cooperates with the first scraper on the mesh side of the filter plate to shear the ground raw materials into short fibers of the composite mesh size, so as to ensure the consistency of the raw material size, thereby improving the fiber yield and thus improving the pulping effect.

[0014] 2. A connecting rod is provided at the end of the inclined blade, and a telescopic block with an ejection spring is provided on one side of the connecting rod. Under the action of the ejection spring, the telescopic block is ejected outward, so that the scraper can be close to the inner wall of the equipment box, so as to scrape the raw materials attached to the inner wall surface of the equipment box, thereby achieving the purpose of improving the raw material collection rate and avoiding the raw materials adhering to the inner wall surface of the equipment box and failing to be effectively collected, resulting in material waste.

[0015] 3. By setting a corrugated rubber sleeve between the scraper and the connecting rod, the telescopic block is wrapped inside the corrugated rubber sleeve to protect the telescopic block, preventing the raw material from entering the interior of the connecting rod through the gap at the connection between the telescopic block and the connecting rod, causing the telescopic block to get stuck, thereby ensuring the stable telescopic function of the telescopic block, so that the scraper can stably adhere to the inner wall surface of the equipment box, ensuring the stability of scraping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the internal structure of the equipment box of the present invention;

[0018] Figure 3 It is a schematic diagram of the internal structure of the grinding box of the present invention;

[0019] Figure 4 It is a schematic diagram of the top structure of the filter plate of the present invention;

[0020] Figure 5 It is a schematic diagram of the scraper structure of the present invention;

[0021] Figure 6 It is a schematic diagram of the partial cross-sectional structure of the filter plate of the present invention.

[0022] In the figure: 1. Equipment box; 2. Crushing box; 3. Feeding port; 4. Crushing roller; 5. Gear box; 6. Crushing motor; 7. Grinding box; 8. Grinding disc; 9. Driving motor; 10. Transmission shaft; 11. Feeding port; 12. Filter plate; 13. Inclined blade; 14. Connecting rod; 15. Telescopic block; 16. Scraper; 17. Ejection spring; 18. Limiting groove; 19. Limiting block; 20. Corrugated rubber sleeve; 21. Discharging port; 22. Protective cover; 23. Material guide pipe; 24. First scraper; 25. Second scraper. DETAILED DESCRIPTION

[0023] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-6 The present invention provides a technical solution of a crushing mechanism in a papermaking pulping machine, comprising an equipment box 1, a crushing box 2 and a grinding box 7, wherein the crushing box 2 is fixedly installed on one side of the top of the equipment box 1, crushing rollers 4 are arranged on both sides of the inner top of the crushing box 2, a feed port 3 is arranged on the top of the crushing box 2, a bottom side of the crushing box 2 is extended to the inner top of the equipment box 1 through a material guide pipe 23, a grinding box 7 is arranged on the inner top of the equipment box 1, a conical grinding disc 8 is arranged inside the grinding box 7, the material guide pipe 23 extends to the inner top of the grinding box 7, a driving motor 9 is fixedly installed at the center of the top of the equipment box 1, and the output of the driving motor 9 The end of the shaft extends to the interior of the equipment box 1 and is fixedly installed with a transmission shaft 10, which passes through the grinding disc 8 and is fixedly connected thereto. A feeding port 11 is provided at the bottom of the grinding box 7, and a filter plate 12 is provided at the bottom end of the interior of the equipment box 1. The top center position of the filter plate 12 is movably connected to the bottom of the transmission shaft 10 through a bearing. A plurality of layers of inclined blade plates 13 are provided on the outer periphery of the bottom end of the transmission shaft 10, and a first scraper 24 is obliquely provided on one side of the top of the mesh of the filter plate 12, and a second scraper 25 is fixedly embedded below the inclined blade plate 13, and a certain distance is left between the second scraper 25 on the bottom inclined blade plate 13 and the first scraper 24.

[0025] Specifically, the end of the inclined blade 13 on the same side is fixedly connected to the connecting rod 14 by welding, and a telescopic block 15 is slidably provided on the side of the connecting rod 14 away from the inclined blade 13, and an ejection spring 17 is provided on the side of the telescopic block 15 extending to the inside of the connecting rod 14, and a scraper 16 is fixedly installed on the outer end of the telescopic block 15, and the outer side of the scraper 16 is in close contact with the inner wall of the bottom end of the equipment box 1.

[0026] Specifically, a corrugated rubber sleeve 20 is provided between the scraper 16 and the connecting rod 14, the telescopic block 15 is provided inside the corrugated rubber sleeve 20, and both ends of the corrugated rubber sleeve 20 are fixedly connected to the scraper 16 and the connecting rod 14 respectively through sealing waterproof glue.

[0027] Specifically, limiting grooves 18 are provided on the inner wall surfaces on both sides of the connecting rod 14, and limiting blocks 19 are provided on both sides of one end of the telescopic block 15 extending to the inside of the connecting rod 14. The telescopic block 15 is slidingly connected to the inner wall of the connecting rod 14 through the limiting grooves 18 and the limiting blocks 19.

[0028] Specifically, a gear box 5 is provided on the outer side of the crushing box 2, and two transmission gears meshing with each other are provided inside the gear box 5. The two transmission gears are fixedly connected to one end of the two crushing rollers 4 respectively. A crushing motor 6 is fixedly installed on the outer side of the gear box 5, and the end of the output shaft of the crushing motor 6 is fixedly connected to one of the transmission gears.

[0029] Specifically, a protective cover 22 is provided on one side of the top of the feed port 3 , and the protective cover 22 is fixedly mounted on the top of the crushing box 2 by welding.

[0030] Specifically, a discharge port 21 is provided at the bottom of the equipment box 1 , and the discharge port 21 extends to the bottom end of the interior of the equipment box 1 and communicates with the interior thereof.

[0031] In the present embodiment, when in use, the papermaking raw material is poured into the crushing box 2 through the feed port 3, and the crushing motor 6 is used to drive the two gears inside the gear box 5 to rotate relative to each other, thereby driving the two crushing rollers 4 to perform preliminary crushing treatment on the papermaking raw material. The small pieces of raw material after crushing are introduced into the grinding box 7 at the top of the equipment box 1 through the guide pipe 23, and the driving motor 9 is used to drive the grinding disc 8 to rotate. The small pieces of raw material are ground through the gap gradually narrowing from top to bottom inside the grinding box 7, and the rotating grinding disc 8 is used to grind the small pieces of raw material. The ground raw material falls into the bottom end of the equipment box 1 through the discharge port 11. The driving motor 9 drives the grinding disc 8 to rotate through the transmission shaft 10, and drives the inclined blade 13 to rotate at the same time, and uses the second scraper 25 on the inclined blade 13 to cut the falling raw material, thereby further reducing the raw material. volume until the raw material falls onto the filter plate 12, and through the second scraper 25 on the bottom layer of the inclined blade plate 13, the first scraper 24 is inclinedly arranged on one side of the mesh of the filter plate 12, and the second scraper 25 is rotated to form a shear force between the first scraper 24 and the second scraper 25 to shear the raw material on the filter plate 12, thereby further reducing the volume of the raw material and shearing the raw material into short fibers to increase the fiber yield and thus improve the beating effect. In the process of rotating the inclined blade plate 13, the telescopic block 15 and the scraper 16 on the outside of the end connecting rod 14 are used, under the action of the ejection spring 17, so that the scraper 16 is close to the inner wall of the equipment box 1, and the scraper 16 is used to scrape the raw material attached to the inner wall of the equipment box 1, so as to improve the collection efficiency of the raw material and avoid waste of raw materials.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crushing mechanism in a papermaking pulping machine, comprising an equipment box (1), a crushing box (2) and a grinding box (7), characterized in that: A crushing box (2) is fixedly mounted on one side of the top of the equipment box (1), crushing rollers (4) are arranged on both sides of the inner top of the crushing box (2), a feed port (3) is arranged on the top of the crushing box (2), a bottom side of the crushing box (2) extends to the inner top of the equipment box (1) through a material guide pipe (23), a grinding box (7) is arranged at the inner top of the equipment box (1), a conical grinding disc (8) is arranged inside the grinding box (7), the material guide pipe (23) extends to the inner top of the grinding box (7), a driving motor (9) is fixedly mounted at the top center of the equipment box (1), the output shaft end of the driving motor (9) extends to the inside of the equipment box (1) and is fixedly mounted with A transmission shaft (10), the transmission shaft (10) passes through the grinding disc (8) and is fixedly connected thereto, a feed port (11) is provided at the bottom of the grinding box (7), a filter plate (12) is provided at the inner bottom end of the equipment box (1), the top center position of the filter plate (12) is movably connected to the bottom of the transmission shaft (10) through a bearing, a plurality of layers of inclined blade plates (13) are provided at the outer periphery of the bottom end of the transmission shaft (10), a first scraper (24) is obliquely provided on one side of the mesh top of the filter plate (12), a second scraper (25) is fixedly embedded below the inclined blade plate (13), and a certain distance is left between the second scraper (25) on the bottom layer of the inclined blade plate (13) and the first scraper (24).

2. The crushing mechanism in a papermaking pulping machine according to claim 1, characterized in that: The end of the inclined blade (13) on the same side is fixedly connected to a connecting rod (14) by welding, and a telescopic block (15) is slidably provided on the side of the connecting rod (14) away from the inclined blade (13), and an ejection spring (17) is provided on the side of the telescopic block (15) extending to the inside of the connecting rod (14), and a scraper (16) is fixedly installed on the outer end of the telescopic block (15), and the outer side of the scraper (16) is in close contact with the inner wall of the bottom end of the equipment box (1).

3. The crushing mechanism in a papermaking pulping machine according to claim 2, characterized in that: A corrugated rubber sleeve (20) is arranged between the scraper (16) and the connecting rod (14), the telescopic block (15) is arranged inside the corrugated rubber sleeve (20), and the two ends of the corrugated rubber sleeve (20) are fixedly connected to the scraper (16) and the connecting rod (14) respectively through sealing waterproof glue.

4. The crushing mechanism in a papermaking pulping machine according to claim 2, characterized in that: Limiting grooves (18) are provided on the inner wall surfaces on both sides of the connecting rod (14); limiting blocks (19) are provided on both sides of one end of the telescopic block (15) extending to the inside of the connecting rod (14); the telescopic block (15) is connected to the inner wall of the connecting rod (14) in a limiting sliding manner through the limiting grooves (18) and the limiting blocks (19).

5. The crushing mechanism in a papermaking pulping machine according to claim 1, characterized in that: A gear box (5) is arranged on one side of the outside of the crushing box (2), and two mutually meshing transmission gears are arranged inside the gear box (5). The two transmission gears are respectively fixedly connected to one end of the two crushing rollers (4). A crushing motor (6) is fixedly installed on one side of the outside of the gear box (5), and the end of the output shaft of the crushing motor (6) is fixedly connected to one of the transmission gears.

6. The crushing mechanism in a papermaking pulping machine according to claim 1, characterized in that: A protective cover (22) is provided on one side of the top of the feed port (3), and the protective cover (22) is fixedly mounted on the top of the crushing box (2) by welding.

7. The crushing mechanism in a papermaking pulping machine according to claim 1, characterized in that: The bottom of the equipment box (1) is provided with a discharge port (21), and the discharge port (21) extends to the bottom end of the interior of the equipment box (1) and is in communication with the interior thereof.

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