CN218126913U - Shredding equipment - Google Patents

Abstract

The utility model discloses a shred equipment, include the frame, cut roller assembly and dredge the unit, it locates to cut roller assembly in the frame, it is equipped with the serrated circular knife piece to cut the roller assembly last interval for shred, it locates to dredge the unit position between the circular knife piece for dredge the pipe tobacco of cutting, evenly be equipped with the sword tooth on the circumference of circular knife piece, the radial outside extension of circular knife piece is followed to the sword tooth, the cutting edge of sword tooth has the closed angle. The utility model discloses a setting up the serrated circular blade in the interval on cutting roller subassembly, carrying out earlier the shredding of punching back filamentation to tobacco flake, satisfying the preparation of pipe tobacco fixed width fixed length, simultaneously, set up between the circular blade and dredge the unit, can carry out timely dredging to pipe tobacco after the beveling well, the pipe tobacco is not slided and is wafted on, not blockked up, does not have even sword when shredding, makes the bits of broken glass less, has improved and has shredded efficiency and shred the effect.

Description

Shredding equipment

Technical Field

The utility model belongs to the technical field of tobacco equipment, specifically speaking relates to a shred equipment.

Background

With the smoke prohibition requirements of the world health organization and the pursuit and trend of human beings to healthy lives, tobacco products are developed towards a mode of no smoke, diversification and health at present. Under the situation, tobacco enterprises in various countries seize opportunities, and research and development are gradually transferred to a novel tobacco product which is completely different from the traditional cigarette, such as an electronic cigarette, a smokeless tobacco product, a heating cigarette and other tobacco products. Among a plurality of novel tobacco products, the cigarette heating is started later, but the development trend of the cigarette heating is rapid in recent years, and the cigarette heating can occupy a place in the tobacco industry in the future.

At present, the international shredding method for producing the heating cigarette slice mainly comprises the following steps: off-line unreeling, bundling, fixing length, breaking, slicing, on-line or off-line fixing length, width and shredding. The preparation principle and the preparation process of the two process methods are different. The first method can be used for rolling the tobacco cores of the ordered cigarettes which are not burnt after being heated, and the processes of bundling, shredding and rolling can be applied for patent by foreign cigarette enterprises; the second method is suitable for unordered cigarette cores which are not burnt by heating and is suitable for the rolling mode of the existing high-speed cigarette making machine set of the domestic cigarette enterprises. But the traditional unordered shredding equipment is difficult to meet the requirements of quick shredding and fixed-length shredding, and the shredding effect is difficult to ensure after the speed is improved.

In addition, the phenomenon that the equipment is easy to block due to poor tobacco shred dredging effect after cutting often occurs in the existing shredding equipment.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that solve lies in overcoming prior art not enough, the utility model provides a shredding equipment, set up the serrated circular blade through the interval on cutting the roller subassembly, carry out earlier the shredding of the back filamentation of punching to tobacco flake, satisfy the preparation of pipe tobacco fixed width fixed length, and simultaneously, set up between the circular blade and dredge the unit, can carry out timely dredging to the back pipe tobacco well, the pipe tobacco does not slide when shredding and wafts, unblock, do not have even sword, make the bits of broken glass less, shredding efficiency and shredding effect have been improved.

In order to solve the technical problem, the utility model adopts the following basic concept: a shredding device, comprising:

a frame;

the cutting roller assembly is rotatably arranged in the frame, and tooth-shaped circular blades are arranged on the cutting roller assembly at intervals and used for shredding;

and the dredging unit is arranged between the circular blades and used for dredging cut tobacco shreds.

Furthermore, cutter teeth are uniformly arranged on the circumference of the circular blade, the cutter teeth extend outwards along the radial direction of the circular blade, and cutting edges of the cutter teeth are provided with sharp corners.

Among the above scheme, punch through the sword tooth on the circular blade circumference to the tobacco sheet of coming in, the tobacco sheet is under the stress of dragging of cutting the roller subassembly, from the disconnection of punching, forms the pipe tobacco of deciding wide fixed length, compares in traditional equipment, need not to set up horizontal and fore-and-aft roller that cuts, also need not to carry out horizontal and fore-and-aft twice and shreds, has equipment simple structure, shreds efficient, shreds effectual characteristics.

Further, still include fixed axle subassembly, fixed axle subassembly is located in the frame, with cut roller assembly parallel arrangement.

The fixed shaft assembly comprises a first fixed shaft and a second fixed shaft which are arranged in parallel.

The dredging unit is provided with a fixing part which is correspondingly assembled with the first fixing shaft and the second fixing shaft respectively and used for fixing the dredging unit between the circular blades.

In the scheme, the dredging unit is fixed between the circular blades, so that cut tobacco can be well dredged in time, the cut tobacco is not blocked during shredding, and the shredding efficiency is improved.

Furthermore, the cutting device further comprises a partition unit, wherein the partition unit is arranged on the cutting roller assembly and is positioned between the circular blades, and the partition unit is connected with the circular blades.

Furthermore, be equipped with the mounting hole on cutting off the unit, be equipped with the pilot hole on the circular knife piece, the mounting hole assembles with the pilot hole one-to-one for cut off being connected of unit and circular knife piece.

Among the above scheme, because the surface of cutting the roller is more smooth, the thickness of circular knife piece is thinner for the installation of circular knife piece on cutting the roller is comparatively difficult, through will cut off the unit setting between the circular knife piece, cuts off the unit and links to each other with the circular knife piece, cuts off the unit setting on cutting the roller subassembly, makes the circular knife piece also set up on cutting the roller, and the installation of the circular knife piece of being convenient for improves the fastness of installation.

Meanwhile, the partition unit can position the circular blade, and the circular blade is prevented from being displaced due to the stress of the circular blade in the using process, so that the shredding effect is prevented from being influenced.

Furthermore, the dredging unit is provided with a through hole, the dredging unit is sleeved at the partition unit through the through hole, and a gap is formed between the outer peripheral surface of the partition unit and the inner surface of the through hole.

In the above scheme, the partition unit is arranged on the cutting roller assembly and rotates along with the cutting roller, and the dredging unit is fixed on the fixed shaft and is immovable, so that a gap is formed between the outer peripheral surface of the partition unit and the inner surface of the through hole, the partition unit is prevented from rubbing with the dredging unit when rotating along with the cutting roller, the normal operation of equipment is prevented from being influenced, and the service life of the equipment can be effectively prolonged.

Further, cut roller assembly including parallel arrangement's first roller and second roller, first roller and second roller are relative rotation.

The circular blades are arranged at equal intervals along the axial direction of the first roller shaft and the second roller shaft.

The circular blades on the first roll shaft and the circular blades on the second roll shaft are distributed in a staggered mode in the axial direction.

In the above scheme, when first roller and second roller rotated relatively, can provide tensile traction force for the disconnection of tobacco sheet.

The circular blades are arranged at equal intervals along the axial direction of the first roller shaft and the second roller shaft, and the preparation of cut tobacco with fixed width can be met.

The circular blades on the first roller shaft and the circular blades on the second roller shaft are distributed in a staggered mode in the axial direction, and the distance between the circular blades distributed in the staggered mode is the width of tobacco shreds; the setting that the circle blade dislocation was distributed prevents to cut the contact between the roller upper slitter piece on not influencing shredding effect's basis, and reducing wear improves the life of blade.

Furthermore, the cutter teeth of the circular blade on the first roll shaft and the cutter teeth of the circular blade on the second roll shaft are distributed in a one-to-one correspondence mode.

In the above scheme, the cutter teeth of the circular blade on the first roller shaft and the cutter teeth of the circular blade on the second roller shaft are distributed in a one-to-one correspondence manner, namely, the punching position of the cutter teeth of the circular blade on the first roller shaft on the tobacco sheet and the punching position of the cutter teeth of the circular blade on the second roller shaft on the tobacco sheet are kept on the same horizontal line, so that the fracture of cut tobaccos during disconnection is parallel and smooth, and the preparation of cut tobaccos with fixed length is met.

Further, the distance between the adjacent circular blades is adjustable.

In the above scheme, the distance between the adjacent circular blades can be adjusted according to the actual process requirements, so that the tobacco shreds with different fixed widths can be prepared conveniently, and the process and preparation requirements are met.

After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has:

the utility model provides a shred equipment sets up the serrated circular knife piece through the interval on cutting the roller subassembly, carries out earlier the shredding of punching back filamentation to tobacco slice, satisfies the preparation of pipe tobacco fixed width fixed length, simultaneously, sets up between the circular knife piece and dredges the unit, can carry out timely dredging to pipe tobacco after the pair well, and the pipe tobacco is not slided and is wafted on, not blockked up, no company's sword when shredding, makes the bits of broken glass less, has improved and has shredded efficiency and shred the effect.

The utility model discloses a tobacco sheet, including roller subassembly, circle blade, horizontal and vertical roller, the roller subassembly is cut to the circle blade, and the circle blade is used for the roller subassembly to cut the tobacco sheet that comes in, and the circle blade is equipped with the cutter tooth on the circumference, and the tobacco sheet is cut off from the department of punching under the stress of dragging of roller subassembly, forms the pipe tobacco of level width fixed length, compares in traditional equipment, need not to set up horizontal and fore-and-aft roller that cuts, also need not to carry out horizontal and fore-and-aft twice and shreds, has equipment structure simply, shreds efficient, shreds effectual characteristics.

Through will cut off the unit setting between the circular knife piece, cut off the unit and link to each other with the circular knife piece, cut off the unit setting on cutting the roller subassembly for the circular knife piece also sets up on cutting the roller, and the installation of the circular knife piece of being convenient for improves the fastness of installation. Meanwhile, the partition unit can play a role in positioning the position of the circular blade, and the circular blade is prevented from being displaced due to stress of the circular blade in the using process to influence the shredding effect.

The outer peripheral surface of the partition unit and the inner surface of the through hole are provided with a gap, so that the partition unit is prevented from rubbing with the dredging unit when rotating along with the cutting roller, the normal operation of equipment is prevented from being influenced, and the service life of the equipment can be effectively prolonged.

When the first roller shaft and the second roller shaft rotate oppositely, the stretching traction force can be provided for the breaking of the tobacco sheets.

The circular blades are arranged at equal intervals along the axial direction of the first roller shaft and the second roller shaft, and the preparation of cut tobacco with fixed width can be met.

The circular blades on the first roller shaft and the circular blades on the second roller shaft are distributed in a staggered mode in the axial direction, and the distance between the circular blades distributed in the staggered mode is the width of tobacco shreds; the setting that the circle blade dislocation was distributed prevents to cut the contact between the roller upper slitter piece on not influencing shredding effect's basis, and reducing wear improves the life of blade.

The cutter teeth of the circular blade on the first roller shaft and the cutter teeth of the circular blade on the second roller shaft are distributed in a one-to-one correspondence mode, namely, the punching position of the cutter teeth of the circular blade on the first roller shaft on the tobacco sheet and the punching position of the cutter teeth of the circular blade on the second roller shaft on the tobacco sheet are kept on the same horizontal line, so that the fracture of cut tobaccos during disconnection is parallel and flat, and the preparation of fixed-length cut tobaccos is met.

The utility model provides a pair of shred equipment can satisfy the shredding of fixed width and length of tobacco thin slice, can carry out timely dredging to the pipe tobacco of bisection back well, and the pipe tobacco is not slided and is wafted on, not blockked up, does not have even sword when shredding, makes the bits of broken glass less, has improved and has shredded efficiency and shred the effect, has simple structure, characteristics with low costs.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a front view of the middle shredding device of the present invention;

FIG. 2 is a front view of the shredder of FIG. 1;

fig. 3 is a front view of the structure of the middle circular blade and the partition unit of the present invention.

In the figure: 1. a first fixed shaft; 2. a second fixed shaft; 3. a first roller shaft; 4. a second roller shaft; 5. a dredging unit; 6. a partition unit; 7. a circular blade; 8. cutter teeth; 9. mounting holes; 10. an assembly hole; 11. a fixed part.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connecting" and the like are to be interpreted broadly, and may be, for example, detachably connected, mechanically connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, the utility model provides a shredding device, which comprises a frame, a cutting roller assembly, a fixed shaft assembly and a dredging unit 5, wherein the cutting roller assembly comprises a first roller shaft 3 and a second roller shaft 4, a circular blade 7 is arranged on the first roller shaft 3 and the second roller shaft 4, and cutter teeth 8 are arranged on the circumference of the circular blade 7; the fixed shaft assembly comprises a first fixed shaft 1 and a second fixed shaft 2; the dredging unit 5 is provided with a fixing part 11 and a through hole; still including cutting off unit 6, be equipped with mounting hole 9 on cutting off unit 6, be equipped with pilot hole 10 on the circular knife piece 7.

As an embodiment, as shown in FIG. 1, the utility model provides a shredding device, which comprises a frame, a cutting roller assembly, a fixed shaft assembly and a dredging unit 5.

The cutting roller assembly is rotatably arranged in the frame, the fixed shaft assembly is fixedly arranged in the frame, the cutting roller assembly and the fixed shaft assembly are arranged in parallel, and the fixed shaft assembly is arranged at the upstream of the cutting roller assembly according to the conveying direction of tobacco sheets.

The cutting roller assembly is provided with tooth-shaped round blades 7 at intervals and used for cutting threads.

The dredging unit 5 is arranged between the circular blades 7 and used for dredging cut tobacco shreds.

Among the above-mentioned embodiment, through setting up toothed circular blade 7 at the interval on cutting roller assembly, carry out earlier the shredding of punching back filamentation to tobacco slice, satisfy the preparation of pipe tobacco fixed width fixed length, simultaneously, set up between circular blade 7 and dredge unit 5, can carry out timely dredging to pipe tobacco after the bisection well, the pipe tobacco does not slide and floats on, does not block up, does not have continuous sword during shredding, makes the bits of broken glass less, has improved and has shredded efficiency and shred effect.

Cut roller assembly including parallel arrangement's first roller 3 and second roller 4, first roller 3 and second roller 4 rotate in opposite directions.

The circular blades 7 are arranged at equal intervals along the axial direction of the first roller shaft 3 and the second roller shaft 4.

The circular blades 7 on the first roller shaft 3 and the circular blades 7 on the second roller shaft 4 are distributed in a staggered mode in the axial direction.

In the above embodiment, the first roller 3 and the second roller 4 can provide a tensile traction force for the cut-off of the tobacco sheet when rotating in the opposite direction.

The circular blades 7 are arranged at equal intervals along the axial direction of the first roller shaft 3 and the second roller shaft 4, and can meet the requirement for preparing cut tobaccos with fixed width.

The circular blades 7 on the first roll shaft 3 and the circular blades 7 on the second roll shaft 4 are distributed in a staggered mode in the axial direction, and the space between the circular blades 7 distributed in a staggered mode is the width of tobacco shreds; the arrangement of the circular blades 7 in staggered distribution prevents the blades on the cutting roller from contacting with each other on the basis of not influencing the shredding effect, reduces abrasion and prolongs the service life of the blades.

Cutter teeth 8 are uniformly arranged on the circumference of the circular blade 7, the cutter teeth 8 extend outwards along the radial direction of the circular blade 7, and the cutting edge of each cutter tooth 8 has a sharp corner.

Among the above-mentioned embodiment, punch through the last sword tooth 8 of circular blade 7 circumference to the tobacco sheet of coming in, the tobacco sheet is under the stress of dragging of cutting the roller subassembly, from the disconnection of punching, forms the pipe tobacco of deciding wide fixed length, compares in traditional equipment, need not to set up horizontal and fore-and-aft roller that cuts, also need not to carry out horizontal and fore-and-aft twice and shred, has equipment structure simply, shreds efficient, shreds effectual characteristics.

The cutter teeth 8 of the circular blade 7 on the first roller shaft 3 and the cutter teeth 8 of the circular blade 7 on the second roller shaft 4 are distributed in a one-to-one correspondence manner.

In the above embodiment, the cutter teeth 8 of the circular blade 7 on the first roll shaft 3 and the cutter teeth 8 of the circular blade 7 on the second roll shaft 4 are distributed in a one-to-one correspondence manner, that is, the punching position of the cutter teeth 8 of the circular blade 7 on the first roll shaft 3 on the tobacco sheet and the punching position of the cutter teeth 8 of the circular blade 7 on the second roll shaft 4 on the tobacco sheet are kept on the same horizontal line, so that the parallel and flat fracture of cut tobacco during cut tobacco disconnection is ensured, and the preparation of cut tobacco with fixed length is met.

The distance between adjacent circular blades 7 is adjustable.

In the present embodiment, the pitch between the circular blades 7 is greater than 0.7mm. Because the thickness of blade is less than the interval of blade, the interval of blade is too little, leads to the thickness of blade too little, and the interval between the restriction circle blade 7 is greater than 0.7mm, reduces the friction between the blade on the one hand, prevents on the other hand that the blade is too thin for the wear-resisting fastness, the toughness etc. of blade can descend, influences the shred effect, reduces the life-span.

The fixed shaft assembly comprises a first fixed shaft 1 and a second fixed shaft 2 which are arranged in parallel.

The leading unit 5 is provided with fixing parts 11, and the fixing parts 11 are respectively assembled with the first fixing shaft 1 and the second fixing shaft 2 correspondingly and used for fixing the leading unit 5 at a position between the circular blades 7.

In the embodiment, the dredging unit 5 is fixed between the circular blades 7, cut tobacco can be well dredged in time, the cut tobacco is not blocked during shredding, and the shredding efficiency is improved.

Preferably, the fixing portion 11 is a U-shaped structure, and the opening of the U-shaped structure is correspondingly assembled with the fixing shaft, so that the dredging unit 5 is fixed and stable.

Still include and cut off unit 6, cut off unit 6 and locate on the roller assembly, be located the position between circular knife 7, it links to each other with circular knife 7 to cut off unit 6.

Be equipped with mounting hole 9 on cutting off unit 6, be equipped with pilot hole 10 on the circular knife piece 7, mounting hole 9 and pilot hole 10 one-to-one assembly for cut off unit 6 and circular knife piece 7 be connected.

In the embodiment, because the surface of the cutting roller is smoother, the thickness of the circular blade 7 is thinner, so that the circular blade 7 is difficult to install on the cutting roller, the separation unit 6 is arranged between the circular blades 7 and is connected with the circular blades 7, the separation unit 6 is arranged on the cutting roller component, the circular blades 7 are also arranged on the cutting roller, the circular blades 7 are convenient to install, and the installation firmness is improved.

Meanwhile, the partition unit 6 can position the circular blade 7, and the circular blade 7 is prevented from being displaced due to the stress of the circular blade 7 in the using process to influence the shredding effect.

Wherein, the partition unit 6 can be a sleeve structure and is fixedly sleeved on the cutting roller; but may be a sheet, arc, polygon, or the like.

The dredging unit 5 is provided with a through hole, the dredging unit 5 is sleeved at the partition unit 6 through the through hole, and a gap is formed between the outer peripheral surface of the partition unit 6 and the inner surface of the through hole.

In the above embodiment, the partition unit 6 is disposed on the cutting roller assembly and rotates along with the cutting roller, and the dredging unit 5 is fixed on the fixing shaft and is fixed, so that a gap is formed between the outer circumferential surface of the partition unit 6 and the inner surface of the through hole, and the partition unit 6 is prevented from rubbing the dredging unit 5 when rotating along with the cutting roller, thereby preventing the normal operation of the device from being affected, and effectively prolonging the service life of the device.

The body of the dredging unit 5 is of a polygonal structure, one or more sides of the dredging unit 5 are used as dredging surfaces, and the dredging surfaces are perpendicular to the plane where the circular blades 7 are located and used for timely dredging cut tobacco. Preferably, the dredging unit 5 is a steel comb.

It should be noted that, under the condition of not influencing the rotation of the cutting roller, the gap is small and can be ignored, so as to avoid the situation that the cut tobacco is blocked at the gap.

Specifically, as shown in fig. 2 and 3, the blocking unit 6 has a disk structure with a certain thickness, and the diameter of the blocking unit 6 is smaller than that of the through hole of the dredging unit 5.

The circumference of the partition unit 6 is provided with mounting holes 9, the circumference of the circular blade 7 is also provided with assembling holes 10 corresponding to the mounting holes 9 one by one, and the mounting holes 9 and the assembling holes 10 are correspondingly assembled through bolts, so that the partition unit 6 is connected with the circular blade 7 and fixed together.

The roller is cut and can also be equipped with a plurality of bar archs on the surface, and is corresponding, cuts off the centre that unit 6 and circular knife 7 and all is equipped with the hole that is used for cutting the roller and passes, is equipped with a plurality ofly respectively in the hole department that cuts off unit 6 and circular knife 7 and to keeping away from the groove of cutting unit 6 or circular knife 7 central direction indent, protruding and the assembly of groove one-to-one for cut off unit 6 and install on cutting the roller, simultaneously, further install circular knife 7 on cutting the roller.

The convex side plays a fixed role in positioning the partition unit 6 and the circular blade 7, and meanwhile, when the cutting roller rotates, power is provided for the partition unit 6 and the circular blade 7 to rotate along with the cutting roller.

In this embodiment, the linear velocity of the filament cutting is 45m/min or less. The linear speed of the shredding corresponds to the rotating speed of the circular blade 7, the linear speed of the shredding is limited to be less than or equal to 45m/min, the shredding speed is prevented from being too high, the rotating speed of the corresponding blade is too high, the requirement on the quality of the blade is higher, and the shredding effect is influenced.

It should be noted that both the pitch between the circular blades and the linear speed of the shredding can be adjusted according to the actual process requirements.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the preferred embodiment, it is not intended to limit the present invention, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention will still fall within the scope of the present invention.

Claims (9)

1. A shredding device, characterized by comprising:

a frame;

the cutting roller assembly is rotatably arranged in the frame, and tooth-shaped round blades (7) are arranged on the cutting roller assembly at intervals and used for shredding;

and the dredging unit (5) is arranged between the circular blades (7) and is used for dredging cut tobacco shreds.

2. The shredding device according to claim 1, characterized in that the circular blade (7) is provided with cutter teeth (8) uniformly on the circumference, the cutter teeth (8) extend outward in the radial direction of the circular blade (7), and the cutting edges of the cutter teeth (8) have sharp corners.

3. A shredding plant according to claim 1, characterized in that: the fixed shaft assembly is arranged in the frame and is parallel to the cutting roller assembly;

the fixed shaft assembly comprises a first fixed shaft (1) and a second fixed shaft (2) which are arranged in parallel;

dredge unit (5) and be equipped with fixed part (11), fixed part (11) correspond the assembly with first fixed axle (1) and second fixed axle (2) respectively for will dredge the position of unit (5) fixing between circle blade (7).

4. A shredding plant according to claim 1, characterized in that: still include and cut off unit (6), cut on the roller assembly, be located the position between circle blade (7) on cutting unit (6), it links to each other with circle blade (7) to cut off unit (6).

5. A shredding plant according to claim 4, characterized in that: be equipped with mounting hole (9) on wall unit (6), be equipped with pilot hole (10) on circular knife piece (7), mounting hole (9) and pilot hole (10) one-to-one assembly for cut off being connected of unit (6) and circular knife piece (7).

6. A shredding plant according to claim 4, characterized in that: the dredging unit (5) is provided with a through hole, the dredging unit (5) is sleeved at the partition unit (6) through the through hole, and a gap is formed between the outer peripheral surface of the partition unit (6) and the inner surface of the through hole.

7. The shredding plant according to claim 1, characterized in that said cutting roller assembly comprises a first roller (3) and a second roller (4) arranged in parallel, said first roller (3) and said second roller (4) rotating towards each other;

the circular blades (7) are arranged at equal intervals along the axial direction of the first roll shaft (3) and the second roll shaft (4);

the circular blades (7) on the first roll shaft (3) and the circular blades (7) on the second roll shaft (4) are distributed in a staggered mode in the axial direction.

8. The shredding plant according to claim 7, characterized in that the teeth (8) of the circular blades (7) on the first roller (3) and the teeth (8) of the circular blades (7) on the second roller (4) are distributed in a one-to-one correspondence.

9. A shredding plant according to any one of claims 1 to 8, characterized in that the spacing between adjacent circular blades (7) is adjustable.

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