An automatic adjustment papermaking beater

By automatically adjusting the double-layer pulping design of the paper pulping machine, the simultaneous occurrence of Wali pulping and PFI refining is achieved, solving the problem of wasted equipment transfer time in the production of insulating paper and improving the performance and production efficiency of insulating paper.

CN116752369BActive Publication Date: 2026-04-14BAIXIANG HUAXING PAPER IND PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-18
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In existing technologies, the pulping process in the production of insulating paper is complicated, and the transfer between equipment wastes time, affecting production efficiency and the performance of insulating paper.

Method used

Design an automatic adjustable paper pulping machine with a double-layer pulping section. After low-speed pulping on the outside, the pulp is automatically drawn into the flying knife for high-speed pulping, realizing simultaneous Wally pulping and PFI refining, reducing equipment transfer, and automatically adjusting the pulping process.

Benefits of technology

It improves the performance of insulating paper, saves production time, increases production efficiency, ensures pulp uniformity and pulping quality, and avoids equipment transportation and manual intervention.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of papermaking pulping technology, in particular to an automatic adjusting papermaking pulper, which comprises a rack installed on the ground, a feeding part provided on the rack and used for feeding pulping raw materials, a discharging part provided at the bottom of the rack and used for discharging pulp, and a pulping part provided in the rack and used for crushing fibers in the solution. The automatic adjusting papermaking pulper is used for insulating paper production, compared with the existing papermaking pulper, the pulping part is used for simultaneously performing inner and outer double pulping, the pulp is simultaneously subjected to Vali pulping and PFI pulping, manual intervention is not needed, the pulp is automatically sucked into the blade interior through the through hole of the blade to perform secondary pulping operation, the process of discharging, machine adjusting, starting and finally taking the pulp after transferring the pulp from one device to another device is not needed, production time is saved, and production efficiency is improved.
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Description

Technical Field

[0001] This invention relates to the field of papermaking pulping technology, specifically to an automatic adjustable papermaking pulping machine. Background Technology

[0002] A pulper is a device used in the papermaking process to break down the fibers in the pulp. Pulping machines are also needed in the production of insulating paper. A search revealed Yu Hongmei's paper, "The Influence of Pulping Process on the Performance of Insulating Paper," which proposes that using a combination of a Walley pulper and a PFI refiner in the papermaking process of insulating paper produces insulating paper with higher AC breakdown strength and better physical properties. Furthermore, lower pulping pressure results in insulating paper with higher performance.

[0003] However, if the pulping process is first carried out in a Wali pulper and then transferred to a PFI refiner for further refining, the process of taking out, loading, and transferring the material to the PFI refiner before setting the parameters and finally starting the machine for pulping is complicated. At the same time, the transfer process wastes production time and reduces production efficiency.

[0004] To address this, an automatic adjustable paper pulping machine is proposed. This machine reduces the transfer process between equipment, improves the performance of insulating paper products, and saves production time. Summary of the Invention

[0005] The purpose of this invention is to provide an automatically adjustable paper pulping machine. By setting up a double-layer pulping section, the pulp is pulped at low speed on the outside and then sucked into the flying knife for high-speed pulping by the pulping roller. This achieves simultaneous Wally pulping and PFI refining, and eliminates the need to transfer pulp back and forth between equipment. At the same time, there is no need for manual loading of pulp into the flying knife. The entire process is automatically adjusted for suction and discharge, which improves the performance of insulating paper and saves production time.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An automatic adjustable paper pulping machine includes:

[0008] A frame, which is mounted on the ground;

[0009] The feeding section is provided on the frame for feeding pulping raw materials. The feeding section can be a feeding port opened on the frame or the raw materials can be transported into the frame through a pipeline. Other structures or devices that can transport raw materials into the frame can also be used.

[0010] The bottom of the frame is provided with a discharge section for discharging slurry. The discharge section can be a discharge port, a discharge pipe, or other discharge structure.

[0011] The pulping section is provided inside the frame for breaking down the fibers in the solution. The pulping section can perform pulping by grinding, by blade stirring, or by other structures.

[0012] Preferably, the pulping section includes a fly knife rotatably mounted inside the frame. The fly knife is driven to rotate by a drive device, which can be a servo motor, a stepper motor, or other mechanism or device capable of driving the fly knife to rotate. The fly knife is cylindrical, and a bottom knife is provided at the bottom of the fly knife to cooperate with it. The bottom knife and the fly knife cooperate with each other, and when the fly knife rotates, the pulp is brought into the gap between the bottom knife and the fly knife, and pulping is performed by squeezing and cutting the pulp fibers. The bottom knife can also be set to an adjustable structure, and the distance between the bottom knife and the fly knife can be adjusted by lever or screw adjustment. A sealing plate is rotatably mounted at the end of the fly knife, and the sealing plate seals the cylindrical opening of the fly knife by means of a mechanical seal. The sealing plate and the fly knife can rotate relative to each other. A pulping roller is also rotatably mounted on the frame. The pulping roller is arranged opposite to the fly knife. The pulping roller extends into the cylinder of the fly knife through the sealing plate. When the pulping roller rotates, it will not drive the sealing plate. The sealing plate rotates, and the beating roller, flying knife, and sealing plate are not concentric. The distance between the beating roller and the inner wall of the flying knife needs to be set according to the degree of beating. In order to allow the beating roller to better contact the pulp, the beating position of the beating roller and the inner wall of the flying knife is selected at the lowest point of the arc of the inner wall of the flying knife. The beating roller is driven to rotate by a second drive device. The second drive device can use the same motor or device as the first drive device. The second drive device drives the beating roller to rotate in the same direction as the flying knife, but the speed of the second drive device is greater than that of the first drive device. Multiple through holes are evenly distributed around the flying knife axis on the side wall of the flying knife to facilitate the entry of pulp into the flying knife. Multiple rows of through holes can also be set according to the cylindrical depth of the flying knife to facilitate the flow of pulp into the flying knife. The beating roller is also equipped with a cleaning device for cleaning the inside of the flying knife. The cleaning device can be a brush or other cleaning mechanism or device.

[0013] The pulping section uses external flying knives in conjunction with bottom knives to pulp the material. At the same time, the pulp is introduced into the flying knives through through holes. The pulping rollers inside the flying knives further refine the pulp at high speed due to the speed difference between the rollers and the inner wall of the flying knives. Pulping is carried out simultaneously from the inside and outside, realizing the simultaneous occurrence of Wali-style pulping and PFI refining. This improves the performance of the pulp for insulating paper while reducing the transfer time between equipment and the preparation and start-up time of the equipment after transfer, thereby improving production efficiency.

[0014] Preferably, each of the through holes is V-shaped. When the fly knife rotates, the end of each V-shaped through hole near the outer wall of the fly knife has the pulp flowing in the opposite direction to the fly knife's rotation. As the fly knife rotates, the port of the through hole located on the outer wall of the fly knife draws the pulp into the through hole and transfers it into the fly knife. The end of each V-shaped through hole near the inner wall of the fly knife is inclined in the direction of the beating roller's rotation, reducing pulp outflow during the beating roller's rotation. While the through holes reduce internal pulp outflow, some pulp will still flow from the inside of the through holes to the outside during the beating roller's rotation. This reduces the pulp pressure during the beating process, which is beneficial for achieving better performance in insulating paper production.

[0015] Preferably, the interior of the horizontal side of the frame in the direction of the fly cutter's rotation is an arc shape concentric with the fly cutter. When the fly cutter rotates, it drives the slurry to flow and throws it out. As the slurry is thrown out by the fly cutter, it impacts the inner wall of the arc-shaped frame, flowing upwards along it. Some of the slurry falls back onto the fly cutter surface under gravity and eventually flows into the fly cutter's interior through the through-hole. Furthermore, some of the slurry driven by the fly cutter's rotation flows back between the fly cutter and the bottom cutter upon impacting the arc-shaped sidewall, allowing the fly cutter and bottom cutter to re-pulverize the slurry, further improving pulverizing efficiency and quality.

[0016] Preferably, the frame is equipped with a guide plate inside for guiding the slurry ejected from the fly cutter. The guide plate is fixedly installed inside the frame and is inclined upwards against the direction of fly cutter rotation. The width of the guide plate is the same as the width of the internal space of the frame, and the lower end of the guide plate is submerged below the slurry surface, but the guide plate is not connected to the bottom of the frame. The guide plate divides the internal space of the frame into a U-shaped tube. The slurry ejected from the fly cutter flows along the guide plate to the side near the feed section, i.e., the side away from the fly cutter. Therefore, the slurry that has been pulped by the fly cutter and the bottom cutter is separated from the slurry that has not been pulped by the fly cutter. As the fly cutter continues to rotate, the slurry continuously flows from the bottom of the U-shaped tube formed by the guide plate towards the fly cutter. This ensures that all the slurry is uniformly pulped, improving the quality stability of the slurry.

[0017] Preferably, the cleaning device includes a cleaning hole on the pulping roller, located at the center of the roller's shaft. An annular groove is formed on the roller's shaft, and the cleaning hole communicates with the groove. A connecting ring is rotatably mounted on the roller's shaft, and the connecting ring and the groove together form a drainage space. A pipe is fixedly connected to the connecting ring, communicating with the drainage space and an external water or air source. When pulping is complete and the pulp is discharged, the air or water source introduces gas or water through the pipe to clean the space inside the cutting tool. After the liquid enters the drainage space formed by the connecting ring and the groove through the pipe, the gas or water fills the entire drainage space and then enters the cutting tool through the cleaning hole communicating with the drainage space for rinsing and cleaning. This effectively prevents residual pulp inside the cutting tool from becoming moldy and deteriorating, thus affecting the quality of the next pulping operation.

[0018] Preferably, the pulping roller, located inside the fly cutter, is further equipped with 2-6 blades to increase the airflow speed and draw slurry into the fly cutter. These 2-6 blades are sufficient to drive the airflow and generate negative pressure. This negative pressure facilitates the drawing of external slurry from the through-hole into the fly cutter without increasing the load on the second drive device. Furthermore, the gaps between the blades are sufficiently large to prevent slurry from accumulating in the blade gaps and becoming difficult to clean. Each blade is circumferentially distributed and fixedly mounted on the shaft of the pulping roller. The height of the blades is half the radius of the pulping roller to prevent the blades from being too high and coming into contact with the slurry, which would increase the resistance during rotation and thus increase the load on the second drive device.

[0019] Preferably, a guide plate for guiding the slurry to the fly cutter is rotatably mounted on the frame below the guide plate. The guide plate is connected to and driven by a third drive device. Driven by the third drive device, the guide plate causes the slurry to pass through the bottom of the guide plate and flow towards the gap between the fly cutter and the bottom cutter. This effectively increases the pulping speed and further prevents the slurry from accumulating in the space near the feed section where it cannot be pulped by the fly cutter and pulping roller, thus further ensuring the quality and efficiency of pulping.

[0020] Preferably, the guide plate is horizontally positioned, facing the feed section. Two to four stirring rods are vertically fixed to the top of the guide plate for thoroughly mixing the raw materials and water. The height of the stirring rods is higher than the surface of the slurry. The stirring rods rotate with the guide plate. When the user pours the raw materials and water into the machine frame from the feed inlet, some of the raw materials will float on the surface of the water, and may even accumulate. At this time, the stirring rods will rotate and push aside the raw materials on the water surface, allowing them to be more quickly integrated into the water, further improving the pulping rate.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. The automatic adjustable paper pulping machine of the present invention, compared with the existing paper pulping machines, utilizes a pulping section that simultaneously pulps from both inside and outside, realizing the simultaneous Wally pulping and PFI refining of insulating paper pulp, without manual intervention. The pulp is automatically drawn into the blade through the through hole for secondary pulping, which is beneficial to the performance improvement of insulating paper products. Furthermore, Wally pulping and PFI refining are carried out simultaneously, eliminating the need to transfer the pulp from one machine to another, and eliminating the need for feeding, adjusting, starting, and finally unloading the pulp after transferring it to the PFI refiner, thus saving production time and improving production efficiency.

[0023] 2. The automatic adjustable paper pulping machine of the present invention is equipped with a "V"-shaped through hole. The "V"-shaped through hole drives more pulp into the inside of the flying knife for secondary pulping during the rotation of the flying knife. At the same time, during the pulping process of the pulping roller, the "V"-shaped through hole can prevent the pulp from being discharged from the inside of the flying knife quickly, ensuring that the pulp has sufficient pulping time inside the flying knife. During the pulping process of the pulping roller, some pulp is also discharged to the outside through the through hole. This is different from the traditional PFI pulping machine. This can reduce the pulping pressure during the pulping process and is conducive to further improving the performance of insulating paper.

[0024] 3. The automatic adjustable paper pulping machine of the present invention is provided with an arc-shaped inner wall of the frame to further facilitate the pulp to enter the flying knife from the through hole. At the same time, a guide plate is also provided to separate the pulp after pulping from the pulp that has not yet been pulped. The guide plate works with the guide plate to guide the flow, ensuring that the pulp is uniformly pulped at each point, improving the stability of pulping quality. In addition, a cleaning device is provided on the pulping roller. After pulping, the cleaning device can clean the space inside the flying knife to prevent the pulp residue inside the flying knife from deteriorating and contaminating the next pulping. It can also prevent the through hole from becoming blocked, which would affect the rate at which the pulp enters the flying knife. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a front view of the present invention;

[0027] Figure 3 This is a top view of the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the internal structure of the throwing knife of the present invention;

[0030] Figure 6 This is a schematic diagram of the cleaning device of the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of the pulping roller and blades of the present invention;

[0032] Figure 8 This is a schematic diagram of the through hole in Embodiment 2 of the present invention.

[0033] In the diagram: 1. Frame; 2. Feeding section; 3. Discharging section; 4. Pulping section; 5. Flying knife; 6. Drive unit one; 7. Bottom knife; 8. Sealing plate; 9. Pulping roller; 10. Drive unit two; 11. Through hole; 12. Guide plate; 13. Cleaning hole; 14. Groove; 15. Connecting ring; 16. Drainage space; 17. Pipe one; 18. Blade; 19. Guide plate; 20. Drive unit three; 21. Stirring rod. Detailed Implementation

[0034] Example 1:

[0035] refer to Figures 1 to 7 An automatic adjustable paper pulping machine includes: 1. a frame; 2. a feeding section; 3. a discharging section; 4. a pulping section; 5. a flying knife; 6. a first drive unit; 7. a bottom knife; 8. a sealing plate; 9. a pulping roller; 10. a second drive unit; 11. a through hole; 12. a guide plate; 13. a cleaning hole; 14. a groove; 15. a connecting ring; 16. a flow guiding space; 17. a first pipe; 18. a blade; 19. a guide plate; 20. a third drive unit; and 21. a stirring rod.

[0036] The frame 1 is horizontally fixed on the ground. The feed section 2 is a feed port located at the upper right corner of the frame 1. The discharge section 3 is a discharge pipe fixedly installed at the lower left corner of the frame 1. A valve is installed on the discharge pipe to control the discharge. The left side of the frame 1 is semi-circular. A pulping section 4 is installed inside the frame 1. The pulping section 4 is located inside one side of the semi-circular side of the frame 1. The pulping section 4 includes a cylindrical flying knife 5 rotatably installed inside the frame 1. The flying knife 5 is concentric with one side of the semi-circular side of the frame 1. The rotating shaft of the flying knife 5 is connected to a drive device 6 outside the frame 1. A stepper motor (6) drives the flying knife 5 to rotate towards one side of the semi-circular frame 1. A bottom knife (7) is also installed on the frame 1 below the flying knife 5. Six through holes (11) are opened on the side wall of the flying knife 5, connecting the inner and outer sides of the flying knife 5. The six through holes (11) are evenly distributed around the circumference of the flying knife 5. The hole path of each through hole (11) is "V" shaped. The direction of the "V" tip of each "V" shaped through hole (11) is opposite to the direction of rotation of the flying knife 5. The "V" shaped hole path of each through hole (11) is uniform and has the same diameter. A circular sealing plate 8 is rotatably installed at the cylindrical opening of the flying knife 5. The pulping roller 9 is installed opposite to the flying knife 5, extending through the sealing plate 8 into the interior of the flying knife 5. Six blades 18 are fixedly installed on the rotating shaft of the pulping roller 9 inside the flying knife 5. The pulping roller 9 and the flying knife 5 are not concentric; the closest point between them is located at the lowest point of the arc of the inner wall of the flying knife 5. The rotating shaft of the pulping roller 9 is connected to a second drive device 10, which also uses a stepper motor. The second drive device 10 drives the pulping roller 9 to rotate in the same direction as the flying knife 5. A cleaning hole 13 is provided at the center of the pulping roller 9. An annular groove 14 is provided on the rotating shaft of the pulping roller 9 outside the frame 1. The groove 14 is connected to the groove 14. A connecting ring 15 is rotatably installed on the outside of the groove 14. The connecting ring 15 and the groove 14 form a flow-guiding space 16. A pipe 17 is installed on the connecting ring 15. The pipe 17 is connected to the flow-guiding space 16 and to an external water source. A guide plate 12 is fixedly installed on the right side of the frame 1. The guide plate 12 is tilted upward against the rotation direction of the flying knife 5. The guide plate 12 divides the inside of the frame 1 into a U-shaped tube. A guide plate 19 is rotatably installed at the bottom of the frame 1 directly below the feed section 2. The guide plate 19 is driven to rotate by a drive device 20 outside the frame 1. The drive device 20 is also a stepper motor. A stirring rod 21 is vertically fixedly installed on the top of the guide plate 19.

[0037] The specific workflow is as follows:

[0038] Before operation: Put water and fiber raw materials into the machine frame 1 from the feed section 2, ensuring that the water does not exceed the lowest point when the blade 18 rotates.

[0039] During operation: Drive device 3 20 starts and drives the guide plate 19 to rotate. The guide plate 19 and the stirring rod 21 on the guide plate 19 rotate to fully mix the fiber raw material with water to form slurry. Drive device 1 6 drives the flying knife 5 to rotate. The flying knife 5 drives the slurry from the direction of the guide plate 19 towards the direction of the arc-shaped frame 1. When the slurry passes between the flying knife 5 and the bottom knife 7, the slurry is pulped. The pulped slurry will be thrown out by the flying knife 5 and rise along the arc-shaped frame 1. Finally, it falls back to the guide plate 19 from the surface of the guide plate 12 to complete a cycle. The unpulped slurry will be driven towards the flying knife 5 first, which ensures that the slurry can be pulped evenly.

[0040] During the pulping process of the flying knife 5, as the flying knife 5 rotates, it also carries the pulp into the interior of the flying knife 5 through the through hole 11. Simultaneously, the pulping roller 9 inside the flying knife 5 is driven to rotate by the drive device 10. The pulping roller 9 rotates in the same direction as the flying knife 5 at twice the speed. The pulp is pulped through the speed difference within the flying knife 5. Due to the "V"-shaped design of the through hole 11, the flying knife 5 always draws the pulp into the through hole 11 against the direction of rotation, while the pulp inside is pushed along the direction of the through hole 11, thus achieving pulping. When the blades 18 on roller 9 rotate at high speed, they also drive the airflow to move at high speed. The air pressure inside the blades is lower than the external air pressure, so the slurry can be better drawn into the flying knife 5. Therefore, the speed at which the external slurry enters the flying knife 5 during the pulping process of the pulping roller 9 is greater than the speed at which the slurry flows out from the inside. This ensures that there is always slurry inside for pulping. Although the speed at which the slurry enters the flying knife 5 is greater than the speed at which it is discharged, it will still be constantly exchanged with the external slurry during the pulping process, ensuring the uniformity of the pulping.

[0041] After operation: The slurry is discharged from discharge section 3. After discharge, pipe 17 is connected to a water source. Water is injected through pipe 17 into the guide space formed by groove 14 and connecting ring 15. After the guide space is filled, the water enters the flying knife 5 through cleaning hole 13, which is connected to the guide space. The rotation of the flying knife 5 cleans the inside of the flying knife 5, preventing slurry residue from remaining inside the flying knife 5 and causing mold and deterioration, which would affect the quality of the next batch of slurry. It also prevents the through hole 11 from becoming blocked. After cleaning, the cleaning liquid is completely discharged from discharge section 3. Finally, the equipment is turned off and the usage record is made.

[0042] Example 2:

[0043] refer to Figure 8 Unlike Embodiment 1, the "V"-shaped through hole 11 on the side near the outer circle of the flying knife 5 is a tapered hole that gradually narrows towards the tip of the "V"-shaped through hole 11.

[0044] As the fly cutter 5 rotates, the tapered through-hole 11 can draw more slurry into its interior. Simultaneously, the pressure from the tapered through-hole 11 causes the slurry to enter the fly cutter 5 at a faster speed, further increasing the slurry's entry velocity. This allows more slurry to be rapidly beaten by the beating roller 9 against the inner wall of the fly cutter 5, improving beating efficiency. However, the tapered through-hole 11 causes greater damage to the blade surface of the fly cutter 5, reducing its strength and service life. Furthermore, excessive damage to the blade surface from the through-hole 11 may increase the clearance between the fly cutter 5 and the bottom cutter 7, potentially reducing the beating effect of their interaction.

[0045] The functions and implementation processes not described in this embodiment are the same as in Embodiment 1.

[0046] The above two embodiments are merely illustrative examples among the many embodiments of the present invention. Various variations can be made without departing from the principles of the present invention. Embodiments created by those skilled in the art through modifications to the present invention without creative effort are also within the scope of protection of the present invention.

Claims

1. An automatically adjustable paper pulping machine, comprising: A frame (1), wherein the frame (1) is a cavity structure with internal volume, and the frame (1) is installed on the ground; Feeding section (2), the frame (1) is provided with a feeding section (2) for feeding pulping raw materials; The bottom of the frame (1) is provided with a discharge section (3) for discharging slurry; The frame (1) is provided with a pulping section (4) for breaking down the fibers in the solution. The feature is that the pulping section (4) includes a flying knife (5) rotatably mounted on the frame and a pulping roller (9) rotatably mounted on the frame. The pulping roller (9) is nested inside the flying knife (5) and pulps the pulp, thereby improving the physical properties of the pulp used for producing insulating paper while reducing the transfer time between equipment and improving production efficiency. The pulping section (4) includes a flying knife (5) rotatably mounted inside the frame (1). The flying knife (5) is connected to a drive device (6). The flying knife (5) is cylindrical. A bottom knife (7) that cooperates with the flying knife (5) is provided below the flying knife (5). A sealing plate (8) for sealing is rotatably mounted at the end of the flying knife (5). The sealing plate (8) seals the cylindrical opening of the flying knife (5). A pulping roller is also rotatably mounted on the frame (1). (9) The pulping roller (9) is arranged opposite to the flying knife (5). The pulping roller (9) passes through the sealing plate (8) and extends into the cylinder of the flying knife (5). The pulping roller (9) is connected to a second driving device (10). Multiple through holes (11) are evenly distributed around the side wall of the flying knife (5) with the axis of the flying knife (5) as the reference. The pulping roller (9) is also equipped with a cleaning device for cleaning the inside of the flying knife (5). Each of the aforementioned through holes (11) is "V" shaped. When the flying knife (5) rotates, the end of each "V" shaped through hole (11) near the outer wall of the flying knife (5) will draw the slurry into the through hole (11) and transfer it to the inside of the flying knife (5). The end of each "V" shaped through hole (11) near the inner wall of the flying knife (5) is inclined in the direction of rotation of the pulping roller (9), and the outward flow of slurry is reduced during the rotation of the pulping roller (9). The frame (1) is provided with a guide plate (12) for guiding the slurry thrown out by the flying knife (5). The guide plate (12) is fixedly installed inside the frame (1) and is inclined upward against the direction of rotation of the flying knife (5).

2. The automatic adjustable paper pulping machine according to claim 1, characterized in that: The interior of the horizontal side frame (1) in the rotation direction of the flying knife (5) is an arc shape concentric with the flying knife (5). The inner wall of the arc-shaped frame (1) guides the slurry thrown out by the flying knife (5) to move upward when the flying knife (5) rotates.

3. The automatic adjustable paper pulping machine according to claim 1, characterized in that: The cleaning device includes a cleaning hole (13) on the pulping roller (9), an annular groove (14) on the shaft of the pulping roller (9), the cleaning hole (13) and the groove (14) are connected, a connecting ring (15) is rotatably mounted on the shaft of the pulping roller (9), the connecting ring (15) and the groove (14) together form a drainage space (16), a pipe (17) is fixedly connected to the connecting ring (15), the pipe (17) is connected to the drainage space (16), and the pipe (17) is connected to an external water source or air source.

4. The automatic adjustable paper pulping machine according to claim 1, characterized in that: The pulping roller (9) is also provided with multiple blades (18) inside the flying knife (5) to increase the airflow speed so as to draw the pulp into the flying knife (5). The multiple blades (18) are evenly distributed and fixedly installed on the shaft of the pulping roller (9).

5. An automatically adjustable paper pulping machine according to claim 1, characterized in that: A guide plate (19) for guiding slurry to the flying knife (5) is rotatably mounted on the frame (1) below the guide plate (12). The guide plate (19) is connected to a drive device (20) and is driven by the drive device (20).

6. An automatically adjustable paper pulping machine according to claim 5, characterized in that: The guide plate (19) is horizontally set and is located directly below the feed section (2). Multiple stirring rods (21) for fully mixing the raw materials and water are vertically fixed on the top of the guide plate (19).

7. An automatically adjustable paper pulping machine according to claim 1, characterized in that: The pulping roller (9) and the inner wall of the flying knife (5) cooperate to squeeze and pulp at the lowest point of the arc of the inner wall of the flying knife (5).

Citation Information

Patent Citations

  • Multi-stage papermaking beater with simplified structure

    CN218249980U