A fiber beater and a beating method thereof

Abstract

The application discloses a fiber beater and a beating method thereof, which comprises a base, a pulp bin arranged on the base and internally provided with an annular groove, a flying knife rotatably arranged in the annular groove, a driving mechanism arranged in the base and located below the pulp bin, and a bottom knife arranged on the driving mechanism and located below the flying knife and at least partially located in the annular groove; the bottom knife is separated from the flying knife in a preset intermittent time under the driving of the driving mechanism. The application can realize the intermittent separation of the bottom knife and the flying knife, avoid the long-time adhesion of the bottom knife and the flying knife to cause the generation of floating foam or lower material in the beating process, and improve the beating efficiency and beating stability of the fiber beater.

Description

Technical Field

[0001] This invention relates to the field of fiber pulping equipment technology, and in particular to a fiber pulping machine and its pulping method. Background Technology

[0002] A fiber beater is a type of machine used for beating fibers in traditional pulping and papermaking, as well as for beating synthetic and man-made fibers and inorganic fibers. Currently, the Wali beaters and trough beaters used in the market are basically composed of three parts: a pulp trough, fly knives and bottom knives, and a motor belt and pulleys.

[0003] Existing fiber pulping machines, when pulping certain new materials, use weights or counterweights to press down the bottom blades in conjunction with the flying blades to pulp the fibers. However, with the bottom and flying blades in contact for an extended period and without on-site monitoring, some fiber materials will float on the water surface and mix with the foam generated during pulping, while some metals or silicate minerals will sink and cannot pass through the gap between the flying and bottom blades for pulping. The direct contact between the flying and bottom blades can damage the blades. Summary of the Invention

[0004] The purpose of this invention is to provide a fiber beater and its beating method. This fiber beater and its beating method can realize the intermittent use of the bottom blade and the separation of the flying blade, avoiding the situation where the bottom blade and the flying blade are in contact for a long time, which would cause floating foam or lower layer material to be generated during the beating process, thereby improving the beating efficiency and beating stability of the fiber beater.

[0005] To achieve the above objectives, the present invention provides a fiber pulping machine, the specific implementation of which is as follows: A fiber pulping machine, comprising: Base; An annular groove is provided on the machine base; The throwing knife is mounted inside the annular groove; The drive mechanism is located inside the base, below the slurry bin; The bottom cutter is mounted on the drive mechanism, located below the flying cutter, and at least part of it is located within the annular groove; The bottom blade disengages from the flying knife within a preset interval time under the drive mechanism.

[0006] This invention discloses a fiber pulping machine. Compared with the prior art, it features a pulp hopper on a machine base, an annular groove inside the pulp hopper, and a rotatable flying knife within the annular groove. A drive mechanism located below the pulp hopper is situated inside the machine base, and a bottom knife is mounted on the drive mechanism. At least a portion of the bottom knife is located inside the annular groove. Driven by the drive mechanism, the bottom knife separates from the flying knife at preset time intervals, allowing the pulp to circulate and stir within the annular groove. This ensures that the pulp in the annular groove is thoroughly and evenly mixed within the time intervals. Then, the drive mechanism drives the bottom knife to re-engage with the flying knife for pulping operations. This avoids the formation of floating foam or lower layer material during pulping due to prolonged contact between the bottom knife and the flying knife, effectively improving the pulping efficiency and stability of the fiber pulping machine.

[0007] In some embodiments, the drive mechanism includes: A connecting rod is disposed within the machine base, and the bottom cutter is disposed on the connecting rod; A drive cylinder is located below the connecting rod. The telescopic end of the drive cylinder is connected to one end of the connecting rod and drives the end of the connecting rod to move closer to or away from the annular groove along the radial direction of the flying cutter. The other end of the connecting rod is rotatably connected to the machine base.

[0008] By employing a connecting rod installed within the machine base, with a bottom cutter mounted on the connecting rod and a drive cylinder connected below the connecting rod, the connecting rod can swing or rotate using the telescopic action of the drive cylinder's telescopic end. This allows the bottom cutter to automatically separate from the fly cutter within a preset time interval, enabling the slurry to flow through the gap between the fly cutter and the bottom cutter. After the slurry is fully and evenly mixed, the bottom cutter automatically returns to its original position against the fly cutter to perform slurry beating, thus improving the controllability, operational stability, and automation level of the bottom cutter.

[0009] In some embodiments, the following are included: The first connecting block has two parts, and its top is connected to the base. The second connecting block has two parts, and its top is connected to the base. A rotating shaft is mounted between the two first connecting blocks, and the end of the connecting rod is sleeved on the rotating shaft, and the connecting rod can rotate in the circumferential direction of the rotating shaft; The other end of the connecting rod is located between the two second connecting blocks, and this end is connected to the drive cylinder in a transmission manner.

[0010] A rotating shaft is installed between two first connecting blocks connected to the machine base. The end of the connecting rod is sleeved on the rotating shaft and can rotate in the circumferential direction of the rotating shaft. The other end of the connecting rod is set between two second connecting blocks and is connected to the drive cylinder. The drive cylinder drives the end of the connecting rod to rise and fall, causing the other end of the connecting rod to rotate on the rotating shaft, so that the bottom cutter swings to cooperate with or disengage from the flying cutter, improving the control convenience of the bottom cutter.

[0011] In some embodiments, the drive mechanism further includes: A lifting groove is formed on the second connecting block; The movable rod is mounted between the two second connecting blocks, with both ends located in the lifting slots on the same side as them; The end of the connecting rod opposite to the rotating shaft is connected to the movable rod, and the movable rod is connected to the telescopic end of the drive cylinder. Under the drive of the drive cylinder, the rod moves closer to or further away from the base within the lifting groove range.

[0012] By setting a lifting groove on the second connecting block and installing movable rods with both ends located in the lifting groove, the movable rods are connected to the ends of the connecting rod and the telescopic ends of the drive cylinder, effectively realizing the transmission connection between the drive cylinder and the connecting rod, and improving the ease of lifting the connecting rod between the second connecting blocks.

[0013] In some embodiments, the following are included: The maintenance window is located on the side wall of the slurry hopper, at the position corresponding to the bottom cutter. The door is hinged to the side wall of the slurry silo; A mounting base is located at the bottom of the bottom blade and connected to the drive mechanism. The bottom blade and the mounting base are detachably connected.

[0014] By opening a maintenance window on the side wall of the slurry silo corresponding to the bottom knife position, and concealing the maintenance window with a door hinged to the side wall of the slurry silo, the bottom knife is designed to be connected by a mounting base and a connecting rod, and the mounting base and the bottom knife are detachably connected. During use, the bottom knife can be removed from the mounting base simply by opening the maintenance window, which improves the convenience of maintenance and replacement of the bottom knife.

[0015] In some embodiments, the following are included: A mounting slot is provided on the mounting base; The mounting block is disposed in the mounting groove, with its top connected to the bottom knife, and any outer wall of the mounting block is limited to the inner wall of the mounting groove. An installation gap is formed between the other side wall of the mounting block and the other inner wall of the mounting groove. A wedge is provided within the installation gap and engages with the inner wall of the installation groove for positioning. A blocking block is disposed in the mounting groove, located on the side opposite to the maintenance window, and the mounting block abuts against the blocking block; A limiting groove is formed between the inner wall of the blocking block and the mounting groove, and the wedge strip is engaged with the limiting groove for limiting.

[0016] The bottom knife and the mounting base are installed by adopting a structure in which an installation groove is opened on the mounting base and an installation block is set at the bottom of the bottom knife. An installation gap is formed between the side wall of the installation block and the inner wall of the installation groove. A wedge is set in the installation gap. The wedge engages with the limiting groove formed between the blocking block and the inner wall of the installation groove to lock the bottom knife and the mounting base. During disassembly, the bottom knife can be removed simply by removing the wedge, which improves the convenience of disassembly and assembly and the stability of the connection.

[0017] In some embodiments, the following are included: A fixing block is provided on the connecting rod, and the top of the fixing block is connected to the bottom of the mounting base.

[0018] By setting a fixing block on the connecting rod and connecting the top of the fixing block and the bottom of the mounting block, the connection stability between the bottom cutter and the connecting rod structure is improved.

[0019] In some embodiments, the following are included: A through groove is provided at the bottom of the slurry bin, and the bottom cutter extends through the through groove into the annular groove; A first fixing frame is provided at the bottom of the slurry hopper, and the through groove is located inside the first fixing frame; The second fixing frame is disposed on the mounting base and forms a sealing area between it and the first fixing frame; A sealing layer is disposed within the sealing area and connected to the first fixing frame and the second fixing frame.

[0020] By setting a first fixing frame at the bottom of the slurry hopper and a second fixing frame on the mounting base, a sealing area is formed between the first fixing frame and the second fixing frame. The sealing area is sealed with a sealing skin to prevent the slurry in the annular groove from leaking out of the through groove.

[0021] In some embodiments, the following are included: A rotating shaft is mounted inside the annular groove, and the flying knife is sleeved on the rotating shaft; A rotating wheel is fitted onto the end of the rotating shaft that extends outside the annular groove; A drive motor is mounted on the base, and a drive disc is sleeved on the drive motor's power shaft; The transmission belts are respectively fitted onto the rotating wheel and the drive disc.

[0022] By installing a rotating shaft in an annular groove, the flying knife is mounted on the rotating shaft. During use, the drive disc on the drive motor drives the transmission belt to rotate, which in turn drives the rotating wheel to rotate the rotating shaft, thereby driving the flying knife to rotate and cooperate with the bottom knife to pulp the fiber.

[0023] The present invention also provides a fiber beating method, applied in the fiber beating machine according to any one of claims 1-9, comprising the following steps: S11: Add pulping raw materials into the annular trough of the pulp bin; S12: Start the flying knife to rotate, which drives the bottom knife that is in contact with it to pulp the slurry passing between the flying knife and the bottom knife; S13: The drive mechanism controls the bottom cutter to separate from the flying cutter within a preset interval, so that the slurry is circulated and stirred in the annular groove.

[0024] Based on the above technical solution, the present invention has the following beneficial effects compared with the prior art: By installing a pulp bin on the machine base, with an annular groove inside the pulp bin and a rotatable flying knife inside the annular groove, and a drive mechanism located below the pulp bin inside the machine base, a bottom knife is installed on the drive mechanism, with at least part of the bottom knife located inside the annular groove. Driven by the drive mechanism, the bottom knife separates from the flying knife at preset time intervals, allowing the pulp to circulate and stir inside the annular groove. This ensures that the pulp in the annular groove is fully and evenly mixed within the interval. Then, the drive mechanism drives the bottom knife to re-engage with the flying knife for pulping operations. This avoids the formation of floating foam or lower layer material during pulping due to prolonged contact between the bottom knife and the flying knife, effectively improving the pulping efficiency and pulping stability of the fiber pulping machine. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the dismantled portion of the structure of the present invention; Figure 3 This is a schematic diagram of the driving mechanism of the present invention; Figure 4 This is an exploded view of the drive mechanism of the present invention; Figure 5 This is a schematic diagram of the bottom blade of the present invention; Figure 6 This is an exploded view of the bottom blade of the present invention; Figure 7 Partial breakdown of the present invention Figure 1 ; Figure 8 For the present invention Figure 7 A magnified view of a portion of the image; Figure 9 Partial breakdown of the present invention Figure 2; Figure 10 This is a flowchart of the fiber pulping process of the present invention.

[0026] Explanation of reference numerals in the attached figures: 100. Base; 110. Slurry bin; 111. Annular groove; 112. Through groove; 113. First fixed frame; 114. Maintenance window; 115. Door; 120. Rotating shaft; 130. Flying knife; 140. Fixed seat; 150. Bearing seat; 160. Rotating wheel; 170. Transmission belt; 180. Drive motor; 181. Drive disc; 200. Drive mechanism; 210. First connecting block; 211. Rotating shaft; 220. Second connecting block; 221. Lifting groove; 222. Movable rod; 230. Connecting rod; 231. Fixed block; 240. Drive cylinder; 300. Bottom knife; 310. Mounting block; 400. Mounting seat; 410. Mounting groove; 420. Blocking block; 430. Limiting groove; 440. Second fixed frame; 500. Wedge. Detailed Implementation

[0027] To facilitate understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0028] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0029] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the related listed items.

[0030] It should be noted that in this article, "fixed to" or "connected to" can mean directly fixed to or connected to a component, or indirectly fixed to or connected to a component. Example

[0031] like Figure 1 , 2 as well as Figure 9As shown, the fiber pulping machine provided in this embodiment includes a base 100, a pulp bin 110 on the base 100, an annular groove 111 inside the pulp bin 110, a rotating shaft 120 mounted inside the annular groove 111, both ends of the rotating shaft 120 extending to the outside of the annular groove 111 and connecting to bearings in bearing seats 150. The bearing seats 150 are mounted on fixed seats 140 on both sides of the pulp bin 110, and a bearing passes through one end of the rotating shaft 120. A rotating wheel 160 is connected to a base 150. A drive motor 180 is installed on the base 100 below the slurry bin 110. The motor shaft of the drive motor 180 is connected to a drive disk 181. The drive disk 181 and the rotating wheel 160 are connected by a transmission belt 170. A flying knife 130 is sleeved on a rotating shaft 120 inside an annular groove 111. The flying knife 130 rotates along the circumferential direction of the rotating shaft 120 under the drive of the drive motor 180.

[0032] A cap for closing the annular groove 111 is provided at the top of the annular groove 111.

[0033] A through groove 112 is provided at the bottom of the annular groove 111 corresponding to the position of the flying knife 130. A bottom knife 300 is provided at the position of the through groove 112. The bottom knife 300 is connected to the drive mechanism 200 located below the annular groove 111 in the base 100. Under the drive of the drive mechanism 200, the bottom knife 300 contacts the flying knife 130 to perform pulping treatment within the annular groove 111 or separates from the flying knife 130 to ensure that the slurry within the annular groove 111 is fully mixed.

[0034] Combination Figure 3 - Figure 6 As shown, two first connecting blocks 210 and two second connecting blocks 220 are provided at the bottom of the slurry bin 110. A rotating shaft 211 is provided between the two first connecting blocks 210. A connecting rod 230 is connected to the rotating shaft 211. A movable rod 222 is connected to the other end of the connecting rod 230. A lifting groove 221 is provided on the second connecting block 220. The movable rod 222 is provided between the two second connecting blocks 220, and both ends of the movable rod 222 are located in the lifting groove 221 on the same side.

[0035] The telescopic end of the drive cylinder 240 is connected to the movable rod 222. The drive cylinder 240 itself is fixedly connected to the bottom end of the second connecting block 220. The bottom knife 300 is provided on the connecting rod 230. In use, the telescopic movement of the drive cylinder 240 drives the movable rod 222 to rise and fall in the lifting groove 221, thereby driving the bottom knife 300 to move closer to or away from the flying knife 130. During this process, the other end of the connecting rod 230 rotates in the circumferential direction along the rotating shaft 211.

[0036] A fixing block 231 is provided on the connecting rod 230, a mounting base 400 is provided on the fixing block 231, and a bottom knife 300 is provided on the mounting base 400. The bottom knife 300 is detachably connected to the mounting base 400.

[0037] A first fixing frame 113 is provided on the mounting base 400, and a second fixing frame 440 is provided at the bottom of the slurry bin 110. A sealing gap is formed between the first fixing frame 113 and the second fixing frame 440. A sealing skin is provided in the sealing gap. The sealing skin is fixed by pressing it against the peripheral wall of the first fixing frame 113 and the peripheral wall of the second fixing frame 440 to seal the sealing gap.

[0038] An installation groove 410 is provided on the mounting base 400, and an installation block 310 is provided at the bottom of the bottom knife 300. Both sides of the groove wall of the installation groove 410 are inclined from top to bottom and outward. At least one side of the outer wall of the installation block 310 is inclined from top to bottom and outward. When the installation block 310 is placed in the installation groove 410, one side of the installation block 310 is matched with the inner wall of the installation groove 410, and an installation gap is formed between the other side of the installation block 310 and the other inner wall of the installation groove 410. A wedge 500 is provided in the installation gap, and the wedge 500 is matched with the inner wall of the installation groove 410.

[0039] A blocking block 420 is provided on the side of the mounting base 400 away from the outer wall of the slurry tank 110. A limiting groove 430 is formed between the blocking block 420 and the outer wall of the mounting groove 410. The wedge 500 is embedded in the limiting groove 430 and is limited by the limiting groove 430.

[0040] Combination Figure 7 and Figure 8 As shown, a maintenance window 114 is provided on the outer wall of the slurry tank 110 at the position corresponding to the bottom knife 300, and a door 115 is hinged to the outer wall of the slurry tank 110 for covering or opening the maintenance window 114.

[0041] When in use, simply open the door 115, remove the wedge 500 and take it out from the maintenance window 114, then remove the bottom knife 300 from the mounting base 400 and take it out from the maintenance window 114 for replacement or maintenance.

[0042] The fiber pulping machine provided in this embodiment, compared with the prior art, has the following advantages: a pulp bin 110 is provided on the machine base 100, an annular groove 111 is provided inside the pulp bin 110, a flying knife 130 is provided in the annular groove 111, and a drive mechanism 200 is provided inside the machine base 100 below the pulp bin 110. A bottom knife 300 is provided on the drive mechanism 200, and at least part of the bottom knife 300 is located inside the annular groove 111. Under the drive of the drive mechanism 200, the bottom knife 300 switches back and forth between a first position and a second position, so that the bottom knife 300 can controllably cooperate with or disengage from the flying knife 130. By simply switching between the preset mixing state and pulping state in the fiber pulping machine, the pulp in the annular groove 111 can be fully and uniformly mixed within the interval time, which effectively improves the pulping efficiency and pulping stability of the fiber pulping machine. Example

[0043] like Figure 10 As shown, this embodiment provides a fiber beating method, applied to the fiber beating machine described in Embodiment 1, including the following steps: S11: Input pulping raw materials into the annular groove 111 of the pulp bin 110; S12: Start the flying knife 130 to rotate, which drives the bottom knife 300 that is in contact with it to perform pulping treatment on the slurry passing between the flying knife 130 and the bottom knife 300; S13: The drive mechanism 200 controls the bottom cutter 300 to separate from the flying cutter 130 within a preset interval time, so that the slurry is circulated and stirred in the annular groove 111.

[0044] Specifically, step S13 involves extending and retracting the telescopic end of the drive cylinder 240 of the drive mechanism 200 to drive the movable rod 222 to rise and fall within the lifting groove 221, thereby causing the bottom knife 300 to either fit with the flying knife or separate from the flying knife 130.

[0045] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A fiber pulping machine, characterized in that, include: Base (100); The slurry bin (110) is located on the machine base (100) and has an annular groove (111) inside. The flying knife (130) is rotatably mounted in the annular groove (111); The drive mechanism (200) is located inside the base (100) and below the slurry bin (110); The bottom cutter (300) is disposed on the drive mechanism (200), located below the flying cutter (130), and at least part of it is located in the annular groove (111); The drive mechanism (200) includes: A connecting rod (230) is disposed within the machine base (100), and a bottom cutter (300) is disposed on the connecting rod (230); The drive cylinder (240) is located below the connecting rod (230); The first connecting block (210) is connected to the base (100) at its top; A rotating shaft (211) is mounted between two first connecting blocks (210), and the first end of the connecting rod (230) is sleeved on the rotating shaft (211), and the connecting rod (230) rotates in the circumferential direction of the rotating shaft (211); The second end of the connecting rod (230) is connected to the telescopic end of the drive cylinder (240) for transmission. The drive cylinder (240) drives the second end of the connecting rod (230) to rise and fall, thereby causing the first end of the connecting rod (230) to rotate on the rotating shaft (211), so that the bottom cutter (300) swings to cooperate with or disengage from the flying cutter (130). The telescopic end of the drive cylinder (240) drives the second end of the connecting rod (230) to approach or move away from the annular groove (111) along the radial direction of the fly knife (130), so that the bottom knife (300) can automatically separate from the fly knife (130) within a preset time interval, so that the slurry flows through the gap between the fly knife (130) and the bottom knife (300), and after the slurry is fully and evenly mixed, it automatically returns to the state of adhering to the fly knife (130) to perform slurry beating.

2. The fiber pulping machine as described in claim 1, characterized in that, include: Two second connecting blocks (220) are provided, and their tops are connected to the base (100). The second end of the connecting rod (230) is located between the two second connecting blocks (220).

3. The fiber pulping machine as described in claim 2, characterized in that, The drive mechanism (200) further includes: A lifting groove (221) is provided on the second connecting block (220); The movable rod (222) is mounted between the two second connecting blocks (220), with both ends located in the lifting groove (221) on the same side as it; The second end of the connecting rod (230) is connected to the movable rod (222), and the movable rod (222) is connected to the telescopic end of the drive cylinder (240). Driven by the drive cylinder (240), the rod approaches or moves away from the base (100) within the lifting groove (221).

4. The fiber pulping machine according to any one of claims 1-3, characterized in that, include: The maintenance window (114) is located on the side wall of the slurry bin (110) at the position corresponding to the bottom cutter (300); The door (115) is hinged to the side wall of the slurry bin (110); The mounting base (400) is located at the bottom of the bottom blade (300) and connected to the drive mechanism (200). The bottom blade (300) and the mounting base (400) are detachably connected.

5. The fiber pulping machine as described in claim 4, characterized in that, include: A mounting slot (410) is provided on the mounting base (400); Mounting block (310) is disposed in mounting groove (410), with its top connected to bottom knife (300), and any outer wall of mounting block (310) is limited to the inner wall of mounting groove (410), and an installation gap is formed between the other side wall of mounting block (310) and the other inner wall of mounting groove (410). A wedge (500) is provided in the installation gap and is limited to fit the inner wall of the installation groove (410); A blocking block (420) is provided in the mounting groove (410) and located on the side away from the maintenance window (114). The mounting block (310) presses against the blocking block (420). A limiting groove (430) is formed between the inner walls of the blocking block (420) and the mounting groove (410), and the wedge (500) is limited and engaged with the limiting groove (430).

6. The fiber pulping machine as described in claim 5, characterized in that, include: A fixing block (231) is provided on the connecting rod (230), and the top of the fixing block (231) is connected to the bottom of the mounting base (400).

7. The fiber pulping machine as described in claim 6, characterized in that, include: A through groove (112) is provided at the bottom of the slurry bin (110), and the bottom cutter (300) passes through the through groove (112) and extends into the annular groove (111); The first fixing frame (113) is located at the bottom of the slurry bin (110), and the through groove (112) is located inside the first fixing frame (113); The second fixing frame (440) is disposed on the mounting base (400) and forms a sealing area between it and the first fixing frame (113); A sealing skin is disposed within the sealing area and is connected to the first fixing frame (113) and the second fixing frame (440).

8. The fiber pulping machine according to any one of claims 1-3, characterized in that, include: A rotating shaft (120) is mounted in the annular groove (111), and the flying knife (130) is sleeved on the rotating shaft (120); A rotating wheel (160) is fitted onto the end of the rotating shaft (120) extending outside the annular groove (111); A drive motor (180) is mounted on the base (100), and a drive disc (181) is sleeved on the power shaft of the drive motor (180). The transmission belt (170) is respectively fitted on the rotating wheel (160) and the drive disc (181).

9. A fiber pulping method, characterized in that, The application of the fiber pulping machine according to any one of claims 1-8 includes the following steps: S11: Input pulping raw materials into the annular groove (111) of the pulp bin (110); S12: Start the flying knife (130) to rotate, which drives the bottom knife (300) that is in contact with it to perform pulping treatment on the slurry between the flying knife (130) and the bottom knife (300); S13: The drive mechanism (200) controls the bottom knife (300) to separate from the flying knife (130) within a preset interval time, so that the slurry is circulated and stirred in the annular groove (111).

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