A papermaking headbox device for accurate quantitative pulp supply

Abstract

The utility model discloses a kind of papermaking flow box devices of precision quantitative pulp supply, the top surface of main part is fixedly connected with main body, the top surface of cloth pulp distributor is fixedly connected with fixed plate, the one side of fixed plate is fixedly connected with first motor, the top surface of main body is provided with reinforcing plate, the top surface of reinforcing plate is fixedly connected with flow tank, in the utility model, when paper pulp is transported to conveyor by conveying pump, then paper pulp enters flow tank from conveyor, first motor is started to drive first shaft to rotate at this time, fixed rod drives round head plate to move down at this time, cloth pulp distributor is started to evenly spread paper pulp on forming net, then pulp on forming net drops into recovery tank, realize the paper pulp amount that each spread forming net uses is same, realize the pulp amount quantitative spread of the forming net, increase service life, conducive to long time use, reduce maintenance cost, improve work efficiency, improve flexibility.

Description

Technical Field

[0001] This utility model relates to the field of papermaking headbox technology, specifically to a papermaking headbox device for precise quantitative pulp supply. Background Technology

[0002] The headbox is a key component of modern papermaking machines, located between the pulping system and the forming section. Its function is analogous to the heart of the papermaking machine, playing a crucial role in paper quality and machine efficiency. The headbox is an important piece of equipment in the pulping system, ensuring that the pulp, after beating and mixing, is delivered accurately to the forming wire in a stable and uniform flow, according to the machine speed and paper width requirements. This lays the foundation for the subsequent paper forming process. The pulp enters the headbox's distributor from the pulping system and is evenly sprayed onto the forming wire, initiating the paper forming process.

[0003] According to Chinese Patent Publication No. CN222575120U, a papermaking headbox includes a headbox with a discharge valve at its lower end, a support plate fixed to the side wall of the headbox, a top cover covering the upper end of the headbox, a guide rod at the upper end of the top cover penetrating the support plate, a homogenizing device on the support plate that can be inserted into the headbox, and a lifting drive device connected to the top cover. This utility model belongs to the field of headbox technology, specifically addressing the problem in existing headboxes where it is inconvenient to separate the internal stirring rod for disassembly or cleaning.

[0004] In the above-mentioned scheme, the headbox is covered with a top cover, and a guide rod is provided at the top of the top cover. The guide rod passes through the support plate, and a slurry equalization device is provided on the support plate and can be inserted into the headbox. This leads to the following disadvantages: the existing papermaking headbox device cannot accurately supply slurry. Each time the slurry flows from the headbox into the distributor, it will cause excessive input. At this time, a large amount of slurry will spread on the forming wire of the paper machine, which will cause waste, resulting in a very slow paper forming process or even damage. This affects the accuracy of slurry supply, leading to paper instability, reduced work efficiency, and reduced flexibility. Moreover, if the slurry in the headbox is not stirred for a long time, it will solidify, resulting in uneven distribution of slurry components, which will affect the production process, affect slurry delivery, increase production preparation time and energy consumption, reduce production efficiency, shorten the service life of the device, increase maintenance costs, reduce practicality, and increase maintenance costs. Therefore, there is an urgent need for a papermaking headbox device with accurate slurry supply to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a papermaking headbox device for precise quantitative pulp supply, in order to solve the problem that the papermaking headbox device mentioned in the background art cannot accurately supply pulp, and that each time pulp flows from the headbox into the distributor, too much pulp is input, resulting in a large amount of pulp spreading on the forming wire of the papermaking machine and causing waste.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a papermaking headbox device for precise quantitative pulp supply, comprising: a main body, a pulp distributor fixedly connected to the top surface of the main body, a fixed plate fixedly connected to the top surface of the pulp distributor, a first motor fixedly connected to one side of the fixed plate, a reinforcing plate provided on the top surface of the main body, a headbox fixedly connected to the top surface of the reinforcing plate, a quantitative component for precisely quantitatively outputting different pulp volumes provided on the first motor, and a stirring component for enhanced stirring of the pulp provided on the reinforcing plate, the quantitative component comprising a first rotating shaft fixedly connected to the output end of the first motor, the first rotating shaft being rotatably connected to the fixed plate, a circular plate fixedly connected to one end of the first rotating shaft, a fixed rod fixedly connected to one side of the circular plate, a round head plate rotatably connected to one side of the fixed rod, a connecting rod provided on the round head plate, the outer wall of the connecting rod being rotatably connected to the round head plate, a suction plate rotatably connected to the outer wall of the connecting rod, a reinforcing rod fixedly connected to the bottom surface of the reinforcing plate, and a quantitative cylinder fixedly connected to the outer wall of the reinforcing rod.

[0007] Preferably, an input pipe is fixedly connected to the bottom surface of the metering cylinder, the input pipe is fixedly connected to the distributor, a suction pipe is fixedly connected to the bottom surface of the metering cylinder, a combination valve is installed on the suction pipe, the suction pipe is fixedly connected to the pulp tank, a first support plate is fixedly connected to the top surface of the distributor, a telescopic rod is rotatably connected to the first support plate, a fixing block is fixedly connected to one end of the telescopic rod, a second support plate is fixedly connected to the top surface of the distributor, a rotating rod is provided on the second support plate, the second support plate is rotatably connected to the rotating rod, and a slot is provided on the rotating rod.

[0008] Preferably, a rotating rod is rotatably connected to one side of the fixed plate, and three first pulleys are fixedly fitted on the outer surface of the rotating rod. Second pulleys are provided on the three first pulleys, and belts are tensioned between the three second pulleys and the first pulleys. The three second pulleys are fixedly connected to the telescopic rod.

[0009] Preferably, the stirring assembly includes a second motor, which is fixedly connected to the runner. An extension rod is fixedly connected to the output end of the second motor. Two first bevel gears are fixedly connected to the outer wall of the extension rod. A second bevel gear is provided on the two first bevel gears, and the two first bevel gears mesh with the second bevel gears. A first stirring head is fixedly connected to one side of the second bevel gear. A third bevel gear is provided on the two first bevel gears, and the two first bevel gears mesh with the third bevel gear. A fixed cylinder is fixedly connected inside the runner, and the first stirring head passes through the fixed cylinder.

[0010] Preferably, a second stirring head is fixedly connected to the outer wall of the extension rod, the extension rod passes through the fixed cylinder, a slot is installed on the slurry tank, an input groove is provided on the slot, and multiple circular grooves are opened on the slurry tank.

[0011] Preferably, the main body is provided with a recycling tank, the recycling tank is equipped with a conveyor, the top surface of the recycling tank is fixedly connected to two thickened plates, the two thickened plates are fixedly connected to the main body, and the slurry tank is equipped with a conveyor.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention relates to a precise quantitative pulp supply device for papermaking headboxes. When pulp is pumped into a conveyor by a pump, and then enters the headbox, a first motor is activated to rotate the first shaft. A fixed rod moves a rounded plate downwards, which in turn moves a connecting rod downwards. The connecting rod then drives a suction plate to feed the pulp into a distributor within the metering cylinder. The distributor then evenly spreads the pulp onto the forming wire. The pulp drips from the forming wire into a recovery tank, ensuring consistent pulp volume for each forming wire application. This precise pulp distribution increases the forming wire's lifespan, facilitates long-term use, reduces maintenance costs, improves work efficiency, and enhances flexibility.

[0014] This invention relates to a precise quantitative pulp supply device for papermaking headboxes. By starting a second motor to rotate an extension rod, which in turn rotates a second stirring head, which in turn rotates two first bevel gears. These first bevel gears then drive a meshing second bevel gear. This solves the problem of pulp solidification caused by prolonged lack of stirring in the headbox. It achieves rapid, multi-directional, and enhanced stirring of the pulp in the headbox with a single motor, improving stirring efficiency, mixing effect, practicality, work efficiency, flexibility, and applicability. The device is easy to operate, saves manpower, reduces production preparation time and energy consumption, and lowers maintenance costs. Attached Figure Description

[0015] Figure 1 This is a frontal perspective view of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the back of the present invention;

[0017] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the fixing rod structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the suction plate structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the belt structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the first stirring head structure of this utility model;

[0022] Figure 8 For the present utility model Figure 7 Enlarged schematic diagram of the structure at point A in the middle.

[0023] In the diagram: 1. Main body; 2. Slurry distributor; 3. Fixing plate; 4. First motor; 5. First rotating shaft; 6. Circular plate; 7. Fixing rod; 8. Round head plate; 9. Connecting rod; 10. Suction plate; 11. Metering cylinder; 12. Input pipe; 13. Suction pipe; 14. Rotating rod; 15. First pulley; 16. Belt; 17. Second pulley; 18. First support plate; 19. Telescopic rod; 20. Fixing block; 21. Second support plate; 22. Rotating rod; 23. Slot; 24. Combined valve; 25. Reinforcing plate; 26. Second motor; 27. Extension rod; 28. First bevel gear; 29. ​​Second bevel gear; 30. First stirring head; 31. Third bevel gear; 32. Slurry tank; 33. Conveyor; 34. Recovery tank; 35. Fixing cylinder; 36. Second stirring head. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6This utility model provides a papermaking headbox device for precise quantitative pulp supply, comprising: a main body 1; a pulp distributor 2 fixedly connected to the top surface of the main body 1, a fixing plate 3 fixedly connected to the top surface of the pulp distributor 2, a first motor 4 fixedly connected to one side of the fixing plate 3, a reinforcing plate 25 provided on the top surface of the main body 1, a headbox 32 fixedly connected to the top surface of the reinforcing plate 25, a metering component for precisely quantitatively outputting different pulp volumes provided on the first motor 4, and an agitator for enhanced stirring of the pulp provided on the reinforcing plate 25. The mixing and metering components include a first rotating shaft 5, which is fixedly connected to the output end of the first motor 4. The first rotating shaft 5 is rotatably connected to the fixed plate 3. A circular plate 6 is fixedly connected to one end of the first rotating shaft 5. A fixed rod 7 is fixedly connected to one side of the circular plate 6. A round head plate 8 is rotatably connected to one side of the fixed rod 7. A connecting rod 9 is provided on the round head plate 8. The outer wall of the connecting rod 9 is rotatably connected to the round head plate 8. A suction plate 10 is rotatably connected to the outer wall of the connecting rod 9. A reinforcing rod is fixedly connected to the bottom surface of the reinforcing plate 25. A metering cylinder 11 is fixedly connected to the outer wall of the feeder 2. An input pipe 12 is fixedly connected to the bottom surface of the metering cylinder 11. The input pipe 12 is fixedly connected to the feeder 2. A suction pipe 13 is fixedly connected to the bottom surface of the metering cylinder 11. A combination valve 24 is installed on the suction pipe 13. The suction pipe 13 is fixedly connected to the feeder 32. A first support plate 18 is fixedly connected to the top surface of the feeder 2. A telescopic rod 19 is rotatably connected to the first support plate 18. A fixing block 20 is fixedly connected to one end of the telescopic rod 19. A fixing block 20 is fixedly connected to the top surface of the feeder 2. The second support plate 21 is provided with a rotating rod 22. The second support plate 21 is rotatably connected to the rotating rod 22. The rotating rod 22 is provided with a slot 23. A rotating rod 14 is rotatably connected to one side of the fixed plate 3. Three first pulleys 15 are fixedly fitted on the outer surface of the rotating rod 14. Second pulleys 17 are provided on the three first pulleys 15. A belt 16 is tensioned between the three second pulleys 17 and the first pulleys 15. The three second pulleys 17 are fixedly connected to the telescopic rod 19.

[0026] Working principle: When pulp is pumped into conveyor 33 by a conveying pump, and then enters headstock 32 from conveyor 33, the first motor 4 is started, driving the first rotating shaft 5 to rotate. The first rotating shaft 5 then drives the circular plate 6 to rotate, which in turn drives the fixed rod 7 to rotate. The fixed rod 7 then drives the round head plate 8 to move upward, which in turn drives the connecting rod 9 to move upward. The connecting rod 9 then drives the suction plate 10 to move upward. At this point, the combined valve 24 is activated to open the closed suction pipe 13. As the suction plate 10 moves upward in the metering cylinder 11, the suction force draws the pulp from headstock 32 into the metering cylinder 11 along the suction pipe 13 for storage. At this point, the combined valve 24 is activated to close the suction pipe 13. Then, the rotating circular plate 6 drives the fixed rod 7 to move downward, which in turn drives the round head plate 8 to move downward. The round head plate 8 then drives the connecting rod 9 to move downward. The connecting rod 9 drives the suction plate 10 to feed the pulp into the distributor 2 from the metering cylinder 11. At this time, the distributor 2 is started to spread the pulp evenly on the forming wire. Then the pulp on the forming wire drips into the recovery tank 34, so that the amount of pulp used for spreading the forming wire is the same each time. When it is necessary to increase the amount of pulp, the telescopic end of the telescopic rod 19 can be pulled outward to move the fixing block 20 forward. Then the fixing block 20 is inserted into the slot 23 opened on the rotating rod 22. At this time, the first motor 4 rotates so that the two metering cylinders 11 can simultaneously draw out the same amount of pulp from the slot 23. Then the two metering cylinders 11 feed the pulp into the distributor 2. Repeat the above operation to continuously increase the amount of pulp drawn out of the pulp tank 32 by the metering cylinders 11. This achieves the metered spreading of pulp on the forming wire, increases the service life, is conducive to long-term use, reduces maintenance costs, improves work efficiency, and enhances flexibility.

[0027] Please see Figure 1-8The stirring assembly provided by this utility model includes a second motor 26, which is fixedly connected to a runner 32. An extension rod 27 is fixedly connected to the output end of the second motor 26. Two first bevel gears 28 are fixedly connected to the outer wall of the extension rod 27. Second bevel gears 29 are mounted on the two first bevel gears 28, meshing with each other. A first stirring head 30 is fixedly connected to one side of each second bevel gear 29. A third bevel gear 31 is mounted on each of the two first bevel gears 28, and the two first bevel gears 28 mesh with the third bevel gear 30. A bevel gear 31 meshes, and a fixed cylinder 35 is fixedly connected inside the runner 32. A first stirring head 30 passes through the fixed cylinder 35. A second stirring head 36 is fixedly connected to the outer wall of the extension rod 27, which also passes through the fixed cylinder 35. A slot 23 is installed on the runner 32, and an input slot is provided on the slot 23. Multiple circular slots are opened on the runner 32. A recovery tank 34 is provided on the main body 1, and a conveyor is installed on the recovery tank 34. Two thickened plates are fixedly connected to the top surface of the recovery tank 34, and the two thickened plates are fixedly connected to the main body 1. A conveyor 33 is installed on the runner 32.

[0028] Working principle: The second motor 26 drives the extension rod 27 to rotate, which in turn drives the second stirring head 36 to rotate. The extension rod 27 then drives the two first bevel gears 28 to rotate, which in turn drives the meshing second bevel gear 29 to rotate. The second bevel gear 29 then drives the first stirring head 30 to rotate, which in turn drives the meshing third bevel gear 31 to rotate. Finally, the third bevel gear 31 drives the third stirring head to rotate. This solves the problem of solidification caused by prolonged lack of stirring in the headstock tank. It achieves rapid, multi-directional, and enhanced stirring of the headstock tank with a single motor, improving stirring efficiency, mixing effect, practicality, work efficiency, flexibility, and applicability. It is also convenient to operate, saves manpower, reduces production preparation time and energy consumption, and lowers maintenance costs.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A papermaking headbox device for precise quantitative pulp supply, comprising: Main body (1); A pulp distributor (2) is fixedly connected to the top surface of the main body (1), a fixing plate (3) is fixedly connected to the top surface of the pulp distributor (2), a first motor (4) is fixedly connected to one side of the fixing plate (3), a reinforcing plate (25) is provided on the top surface of the main body (1), and a pulp tank (32) is fixedly connected to the top surface of the reinforcing plate (25). Its characteristic is that it further includes: A metering component capable of accurately outputting different amounts of slurry is installed on the first motor (4), and a stirring component capable of strengthening the stirring of the slurry is installed on the reinforcing plate (25); The quantitative component includes a first rotating shaft (5), which is fixedly connected to the output end of a first motor (4). The first rotating shaft (5) is rotatably connected to a fixed plate (3). A circular plate (6) is fixedly connected to one end of the first rotating shaft (5). A fixed rod (7) is fixedly connected to one side of the circular plate (6). A round head plate (8) is rotatably connected to one side of the fixed rod (7). A connecting rod (9) is provided on the round head plate (8). The outer wall of the connecting rod (9) is rotatably connected to the round head plate (8). A suction plate (10) is rotatably connected to the outer wall of the connecting rod (9). A reinforcing rod is fixedly connected to the bottom surface of the reinforcing plate (25). A quantitative cylinder (11) is fixedly connected to the outer wall of the reinforcing rod.

2. The papermaking headbox device for precise quantitative pulp supply according to claim 1, characterized in that: The bottom surface of the metering cylinder (11) is fixedly connected to an input pipe (12), which is fixedly connected to the slurry distributor (2). The bottom surface of the metering cylinder (11) is fixedly connected to a suction pipe (13), which is equipped with a combination valve (24). The suction pipe (13) is fixedly connected to a slurry tank (32). The top surface of the slurry distributor (2) is fixedly connected to a first support plate (18), which is rotatably connected to a telescopic rod (19). One end of the telescopic rod (19) is fixedly connected to a fixing block (20). The top surface of the slurry distributor (2) is fixedly connected to a second support plate (21), which is provided with a rotating rod (22). The second support plate (21) is rotatably connected to the rotating rod (22), which is provided with a slot (23).

3. The papermaking headbox device for precise quantitative pulp supply according to claim 1, characterized in that: A rotating rod (14) is rotatably connected to one side of the fixed plate (3). Three first pulleys (15) are fixedly fitted on the outer surface of the rotating rod (14). Second pulleys (17) are provided on the three first pulleys (15). A belt (16) is tensioned between the three second pulleys (17) and the first pulleys (15). The three second pulleys (17) are fixedly connected to the telescopic rod (19).

4. The papermaking headbox device for precise quantitative pulp supply according to claim 1, characterized in that: The stirring assembly includes a second motor (26), which is fixedly connected to the runner (32). An extension rod (27) is fixedly connected to the output end of the second motor (26). Two first bevel gears (28) are fixedly connected to the outer wall of the extension rod (27). A second bevel gear (29) is provided on the two first bevel gears (28). The two first bevel gears (28) mesh with the second bevel gears (29). A first stirring head (30) is fixedly connected to one side of the second bevel gear (29). A third bevel gear (31) is provided on the two first bevel gears (28). The two first bevel gears (28) mesh with the third bevel gear (31). A fixed cylinder (35) is fixedly connected inside the runner (32). The first stirring head (30) passes through the fixed cylinder (35).

5. The papermaking headbox device for precise quantitative pulp supply according to claim 4, characterized in that: The outer wall of the extension rod (27) is fixedly connected to the second stirring head (36), the extension rod (27) passes through the fixed cylinder (35), the slurry tank (32) is equipped with a slot (23), the slot (23) is provided with an input slot, and the slurry tank (32) is provided with multiple circular grooves.

6. The papermaking headbox device for precise quantitative pulp supply according to claim 1, characterized in that: The main body (1) is provided with a recycling tank (34), a conveyor is installed on the recycling tank (34), two thickened plates are fixedly connected to the top surface of the recycling tank (34), the two thickened plates are fixedly connected to the main body (1), and a conveyor (33) is installed on the slurry tank (32).

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