Pulverizer suitable for fiber materials

Abstract

The invention relates to the technical field of crushers, in particular to a crusher suitable for fiber materials, which comprises a mounting rack, a driving element and a crushing mechanism, the driving element and the crushing mechanism are mounted on the mounting rack, and the crushing mechanism comprises a shell provided with a feed port and a discharge port, and a crushing assembly arranged in the shell and connected with the driving element; an arc-shaped grid is arranged in the shell and divides the interior of the shell into a crushing cavity and a discharging cavity, and the crushing cavity is cylindrical; the crushing assembly comprises a stirring rotating disc connected with a rotating shaft of the driving element and a plurality of swinging blades connected to the stirring rotating disc, an inner cutting edge is arranged on the part, used for forming the crushing cavity, of the inner wall of the shell, and when the swinging blades rotate to the radial direction of the stirring rotating disc, the swinging blades, the inner cutting edge and the arc-shaped grating are arranged at intervals; the crushing device has the advantage that the crushing effect on the fiber materials is improved.

Description

Technical Field

[0001] The present application relates to the technical field of pulverizers, and in particular to a pulverizer suitable for fibrous materials. Background Art

[0002] Due to their unique physical and chemical structure, fibrous materials possess strong toughness and tensile strength, making them challenging to crush. The molecular chains within the fibers are tightly bound together through interactions such as hydrogen bonds and van der Waals forces, forming a stable structure that makes conventional crushing methods difficult to effectively break. When using traditional crushers to process fibrous materials, the fibers often become difficult to cut and incompletely crushed.

[0003] While existing crushers on the market perform well for general materials, they generally struggle with fibrous materials. Some crushers rely on simple extrusion or impact methods. Due to the flexibility of fibers, they deform under stress and are not easily crushed. This causes the material to circulate repeatedly within the crusher without achieving the desired level of crushing.

[0004] Some crushers try to solve this problem by increasing the rotation speed or increasing the crushing force, but this not only increases the energy consumption and wear of the equipment, but may also have an adverse effect on the chemical properties of the fiber due to local overheating. For example, in the crushing process of biofiber, excessively high temperatures may cause carbonization of the fiber, reducing its value as an energy raw material. Summary of the Invention

[0005] In order to improve the crushing effect of fiber materials, the present application provides a crusher suitable for fiber materials.

[0006] The present application provides a pulverizer suitable for fiber materials, which adopts the following technical solution: A pulverizer suitable for fibrous materials comprises a mounting frame, a driving element mounted on the mounting frame, and a crushing mechanism. The crushing mechanism comprises a housing having a feed inlet and a discharge inlet, and a crushing assembly disposed within the housing and connected to the driving element. The housing is provided with an arc-shaped grille that divides the housing into a crushing chamber and a discharge chamber. The crushing chamber is cylindrical. The crushing assembly includes a stirring turntable connected to the rotating shaft of the driving element, and a plurality of swinging blades connected to the stirring turntable. The inner wall of the outer shell used to form the crushing chamber is provided with an inner cutting edge. When the swinging blade rotates in the radial direction of the stirring turntable, there is a gap between the inner cutting edge and the arc-shaped grid.

[0007] In one embodiment, the stirring turntable includes a connecting sleeve for connecting to the rotating shaft, a plurality of connecting rings spaced apart along the axial direction of the connecting sleeve, and a plurality of connecting plates for connecting the connecting sleeve and the connecting rings, and the swinging blade is connected between two adjacent connecting rings.

[0008] In one embodiment, the axial length of the connecting sleeve is smaller than the axial length of the stirring disc, and the connecting piece is in a right-angled trapezoidal structure.

[0009] In one embodiment, the connecting piece is inclined in a direction away from the axis and in a direction opposite to the rotation direction of the stirring turntable.

[0010] In one embodiment, a plurality of material distribution holes are provided on the connecting ring piece.

[0011] In one embodiment: the swing blade includes a connecting portion rotatably connected between two connecting ring pieces, a swing rod connected to the connecting portion, and a cutter head connected to the end of the swing rod. The cutter head is arranged in a long strip shape along the axial direction of the crushing chamber, and the center of gravity of the swing blade is located at the cutter head.

[0012] In one embodiment, the two sides of the cutter head along the circumference of the fixed cutter disc are respectively a second cutting edge portion and an avoidance portion, and the avoidance portion is provided with a chamfer structure for increasing the distance between the avoidance portion and the inner cutting edge.

[0013] In one embodiment: the inner cutting edge includes a blade surface, an avoidance surface, and a connecting surface respectively connected to the blade surface and the avoidance surface; a first blade portion is formed between the blade surface and the connecting surface; the blade surface and the connecting surface are arranged at a right angle or an acute angle; the avoidance surface and the connecting surface are arranged at an obtuse angle; the swing blade and the blade portion of the inner cutting edge are arranged relative to each other.

[0014] In one embodiment, the feed port is vertically arranged at the top of the housing, and along the rotation direction of the crushing assembly, the feed port is eccentrically arranged with respect to the crushing chamber.

[0015] In one embodiment, the lower portion of the shell is configured as a gradually smaller bell-shaped mouth, and the discharge port is provided at the bottom of the shell; an exhaust device is provided at the bell-shaped mouth of the shell.

[0016] In summary, this application has the following beneficial effects: 1. The crushing chamber is formed by the arc-shaped grid. On the one hand, the arc-shaped grid design can form a larger falling surface, so that the crushed material falls better and the subsequent crushing work is smoother; 2. Crushing is carried out by cooperating with the swinging blade and the inner cutting edge, which effectively increases the shear force during crushing and improves the crushing effect of fiber materials; 3. The stirring turntable structure is formed by multiple connecting rings and connecting pieces. The connecting pieces on it can form the function of stirring and dividing the materials, thereby improving the blanking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a crusher suitable for fiber materials according to the present embodiment; Figure 2 is a side sectional view of a pulverizer for fiber materials according to this embodiment; Figure 3 This is a main cross-sectional view of a crusher for fiber materials according to this embodiment; Figure 4 This is a schematic structural diagram of a crushing assembly in a crusher for fiber materials according to this embodiment; Figure 5 yes Figure 3 Magnified view of part A.

[0018] In the figure, 100, mounting frame; 200, driving element; 300, crushing mechanism; 310, outer shell; 311, feed port; 312, discharge port; 320, crushing assembly; 321, fixed cutter head; 3211, connecting sleeve; 3212, connecting ring plate; 3213, connecting plate; 322, swing blade; 3221, connecting part; 3222, swing rod; 3223, cutter head; 3224, second blade portion; 3225, avoidance portion; 330, inner cutting edge; 331, blade surface; 332, connecting surface; 333, avoidance surface; 334, first blade portion; 400, exhaust device; 500, arc-shaped grille. DETAILED DESCRIPTION

[0019] The present application is further described in detail below with reference to the accompanying drawings.

[0020] In the description of this application, it should be understood that the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0021] A crusher suitable for fibrous materials, such as Figure 1 As shown, it includes a mounting frame 100, a driving element 200 mounted on the mounting frame 100, and a crushing mechanism 300, wherein the driving element 200 is a motor.

[0022] like Figure 2 and Figure 3As shown, the crushing mechanism 300 includes a shell 310 provided with a feed port 311 and a discharge port 312, and a crushing assembly 320 arranged in the shell 310 and connected to the driving element 200. The feed port 311 is arranged at the top position of the shell 310 in the vertical direction, and along the rotation direction of the crushing assembly 320, the feed port 311 is eccentrically arranged with respect to the crushing chamber.

[0023] The lower portion of the housing 310 is configured to have a gradually decreasing bell-shaped mouth, and the discharge port 312 is provided at the bottom of the housing 310 ; an exhaust device 400 is provided at the bell-shaped mouth of the housing 310 .

[0024] An arc-shaped grille 500 is provided in the outer shell 310. In this embodiment, the arc-shaped grille 500 is semicircular. The arc-shaped grille 500 divides the outer shell 310 into a crushing chamber and a discharge chamber. The crushing chamber is located above the arc-shaped grille 500, and the discharge chamber is located below the arc-shaped grille 500. The crushing chamber is cylindrical as a whole, and the feed port 311 is connected to the crushing chamber, and the feed port 311 is connected to the discharge chamber.

[0025] like Figure 3 and Figure 4 As shown, the crushing assembly 320 includes a stirring turntable connected to the rotating shaft of the driving element 200, and a plurality of swinging blades 322 connected to the stirring turntable. An inner cutting edge 330 is provided on the inner wall of the outer shell 310 used to form the crushing chamber. When the swinging blade 322 rotates in the radial direction of the stirring turntable, there is a gap between the inner cutting edge 330 and the arc-shaped grid 500.

[0026] The stirring disc includes a connecting sleeve 3211 for connecting to the rotating shaft, a plurality of connecting rings 3212 spaced axially along the connecting sleeve 3211, and a plurality of connecting pieces 3213 for connecting the connecting sleeve 3211 to the connecting rings 3212. The swinging blades 322 are connected between adjacent connecting rings 3212. The swinging blades 322 between different connecting rings 3212 are arranged linearly and are evenly distributed around the circumference.

[0027] Reference Figure 4 The axial length of the connecting sleeve 3211 is smaller than the axial length of the stirring disc, and the connecting piece 3213 is a right-angled trapezoidal structure. Figure 3 The connecting piece 3213 is tilted away from the axis and in the direction opposite to the rotation direction of the stirring disc. The connecting ring piece 3212 is provided with multiple material distribution holes. This structure allows materials to fall through the connecting ring pieces 3212 during the stirring process. At the same time, when the stirring disc rotates at high speed, the connecting ring pieces 3212 will act as blades, forming a radially outward airflow. This can blow finely divided materials outward and achieve the effect of separating materials of different particle sizes.

[0028] The right-angled trapezoidal structure and the inclined setting can form a certain blowing effect in the axial direction through the connecting piece 3213 when the stirring turntable rotates at high speed. In this way, the fine materials are driven by the airflow to move axially, and then the fine materials are more easily separated through the material balancing hole and the middle through hole of the connecting ring piece 3212.

[0029] Reference Figure 5 The swing blade 322 includes a connecting portion 3221 rotatably connected to the fixed cutter disc 321, a swing rod 3222 connected to the connecting portion 3221, and a cutter head 3223 connected to the end of the swing rod 3222. The cutter head 3223 is arranged in an elongated strip along the axial direction of the pulverizing chamber, and the center of gravity of the swing blade 322 is located at the cutter head 3223. By controlling the center of gravity, when the fixed cutter disc 321 rotates, the swing blade 322 can be distributed along the radial direction of the fixed cutter disc 321 under the action of the center of gravity, thereby achieving a better cutting effect.

[0030] The two sides of the cutter head 3223 along the circumference of the fixed cutter disc 321 are respectively the second blade portion 3224 and the avoidance portion 3225. The blade portion of the cutter head 3223 is set at a right angle or an acute angle. In this embodiment, in order to ensure the cutting effect while ensuring that the cutter head 3223 has a better service life, the blade surface 331 and the connecting surface 332 are set at a right angle.

[0031] The relief portion 3225 is chamfered to increase the distance from the inner cutting edge 330. This arrangement not only adjusts the center of gravity of the swinging blade 322, shifting it toward the second cutting edge 3224, but also improves the shearing effect. Furthermore, it reduces the area of ​​the end face of the cutting head 3223 facing the inner cutting edge 330, reducing the resistance of the cutting head 3223 during shearing and further improving the shearing effect.

[0032] The inner cutting edge 330 includes a cutting edge surface 331, a relief surface 333, and a connecting surface 332 connected to the cutting edge surface 331 and the relief surface 333, respectively. A first cutting edge portion 334 is formed between the cutting edge surface 331 and the connecting surface 332. The cutting edge surface 331 and the connecting surface 332 are arranged at a right angle or an acute angle, while the relief surface 333 and the connecting surface 332 are arranged at an obtuse angle. The two inner cutting edges 330 are connected by an arc-shaped transition. This structure forms a one-way tooth structure on the inner cutting edges 330. In this embodiment, when the fixed cutter head 321 rotates clockwise, a cutting effect is generated between the oscillating blade 322 and the inner cutting edge 330, effectively increasing the shear force during cutting.

[0033] In order to ensure the cutting effect and at the same time ensure that the inner cutting edge 330 has a better service life, the blade surface 331 is arranged along the radial direction of the crushing chamber, and the blade surface 331 and the connecting surface 332 are arranged at a right angle.

[0034] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A pulverizer suitable for fiber materials, comprising a mounting frame (100), a driving element (200) mounted on the mounting frame (100), and a crushing mechanism (300), characterized in that: The crushing mechanism (300) comprises a housing (310) provided with a feed port (311) and a discharge port (312), and a crushing assembly (320) provided in the housing (310) and connected to a driving element (200); a circular arc-shaped grille (500) is provided in the housing (310); the circular arc-shaped grille (500) divides the housing (310) into a crushing chamber and a discharge chamber; the crushing chamber is cylindrical; The crushing assembly (320) comprises a stirring turntable connected to the rotating shaft of the driving element (200), and a plurality of swinging blades (322) connected to the stirring turntable. An inner cutting edge (330) is provided on a portion of the inner wall of the housing (310) used to form the crushing chamber. When the swinging blades (322) rotate in the radial direction of the stirring turntable, a gap is formed between the inner cutting edge (330) and the arc-shaped grid (500).

2. A pulverizer for fiber materials according to claim 1, characterized in that: The stirring turntable comprises a connecting sleeve (3211) for connecting to a rotating shaft, a plurality of connecting ring pieces (3212) spaced apart along the axial direction of the connecting sleeve (3211), and a plurality of connecting pieces (3213) for connecting the connecting sleeve (3211) and the connecting ring pieces (3212), and the swinging blade (322) is connected between two adjacent connecting ring pieces (3212).

3. A pulverizer for fiber materials according to claim 2, characterized in that: The axial length of the connecting sleeve (3211) is smaller than the axial length of the stirring turntable, and the connecting piece (3213) is in a right-angled trapezoidal structure.

4. A pulverizer for fiber materials according to claim 3, characterized in that: The connecting piece (3213) is inclined in a direction away from the axis and in a direction opposite to the rotation direction of the stirring turntable.

5. The pulverizer for fiber materials according to claim 2, characterized in that: The connecting ring piece (3212) is provided with a plurality of material distribution holes.

6. A pulverizer for fiber materials according to claim 2, characterized in that: The swing blade (322) comprises a connecting portion (3221) rotatably connected between two connecting ring pieces (3212), a swing rod (3222) connected to the connecting portion (3221), and a cutter head (3223) connected to the end of the swing rod (3222); the cutter head (3223) is arranged in an elongated strip shape along the axial direction of the pulverizing chamber, and the center of gravity of the swing blade (322) is located at the cutter head (3223).

7. A pulverizer for fiber materials according to claim 6, characterized in that: The two sides of the cutter head (3223) along the circumference of the fixed cutter disc (321) are respectively a second blade portion (3224) and an avoidance portion (3225), and the avoidance portion (3225) is provided with a chamfered structure for increasing the distance between the avoidance portion and the inner cutting edge (330).

8. A pulverizer for fiber materials according to claim 7, characterized in that: The inner cutting edge (330) comprises a blade surface (331), an avoidance surface (333), and a connecting surface (332) respectively connected to the blade surface (331) and the avoidance surface (333); a first blade portion (334) is formed between the blade surface (331) and the connecting surface (332); the blade surface (331) and the connecting surface (332) are arranged at a right angle or an acute angle; the avoidance surface (333) and the connecting surface (332) are arranged at an obtuse angle; and the swing blade (322) and the blade portion of the inner cutting edge (330) are arranged relative to each other.

9. The pulverizer for fiber materials according to claim 1, characterized in that: The feed port (311) is arranged at the top of the housing (310) in the vertical direction, and is eccentrically arranged with respect to the crushing chamber along the rotation direction of the crushing assembly (320).

10. The pulverizer for fiber materials according to claim 1, characterized in that: The lower portion of the shell (310) is configured as a gradually decreasing bell mouth, and the discharge port (312) is provided at the bottom of the shell (310); an exhaust device (400) is provided at the bell mouth position of the shell (310).

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