CN209682386U - A kind of rotary-cut plate knife roller type chipper - Google Patents

A kind of rotary-cut plate knife roller type chipper Download PDF

Info

Publication number
CN209682386U
CN209682386U CN201920117047.4U CN201920117047U CN209682386U CN 209682386 U CN209682386 U CN 209682386U CN 201920117047 U CN201920117047 U CN 201920117047U CN 209682386 U CN209682386 U CN 209682386U
Authority
CN
China
Prior art keywords
vertical
roller
horizontal
knife
rotary
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920117047.4U
Other languages
Chinese (zh)
Inventor
周伟
周水保
李树安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAOLONG ELECTROMECHANIC MANUFACTURE Co Ltd JIANGSU
Original Assignee
BAOLONG ELECTROMECHANIC MANUFACTURE Co Ltd JIANGSU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BAOLONG ELECTROMECHANIC MANUFACTURE Co Ltd JIANGSU filed Critical BAOLONG ELECTROMECHANIC MANUFACTURE Co Ltd JIANGSU
Priority to CN201920117047.4U priority Critical patent/CN209682386U/en
Application granted granted Critical
Publication of CN209682386U publication Critical patent/CN209682386U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Debarking, Splitting, And Disintegration Of Timber (AREA)

Abstract

The utility model relates to a kind of rotary-cut plate knife roller type chippers.The utility model includes: that 1# transfer unit (1), vertical rotor component (2), stationary knife (3) and horizontal rotor component (4) are sequentially connected;Plant fiber plate material is sent into the vertical rotor component (2) by the 1# transfer unit (1);The vertical rotor component (2) includes vertical rotor group (202), and the vertical rotor group (202) is by the longitudinally cutting material into strips of the plant fiber plate material;The horizontal rotor component (4) includes horizontal rotor group (401);The horizontal rotor group (401) is to the strip-shaped materials transverse cuts.It, can be by the plant fiber plate materiel machining of 0.5~1.0mm of thickness at predetermined size after the technical solution of the utility model.

Description

A kind of rotary-cut plate knife roller type chipper
Technical field
The utility model relates to a kind of rotary-cut plate knife roller type chippers, are mainly used for: the thick, 1000mm by 0.5~1.0mm Wide, 1000~2000mm long wood chip is further processed into the wood of 0.5~1.0mm thickness, 20~30mm wide, 120~180mm long Piece;Also it is broken to can be used for waste single boards specification of the thickness less than 6mm;For making OSB particieboard.
Background technique
OSB oriented structure chipboard, medium-density plate in wood-based plate, ecological, environmental protective perfume (or spice) standing grain plate production field, wood-based plate Raw material is made using circle material timber, needs to chip to timber in making sheet, dry, glue mixing, compacting, standard size shearing, throwing The processes such as light.
Such as: in structural particleboard and the manufacture of veneer version, being processed by rotary-cut, a large amount of slabs can be generated, thickness is 0.5 ~1.0mm.It, can be effective in OSB oriented structure chipboard for meeting the slab of prescribed requirement.It is wanted for against regulation The prior art: the slab asked after being crushed slab using desintegrator, is handled for energy for factory boiler combustion, cannot achieve money The optimization that source utilizes
Summary of the invention
The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of rotary-cut plate knife roller type chipper, The purpose of realization: it can be by the plant fiber plate materiel machining of 0.5~1.0mm of thickness at predetermined size, such as: processing 0.5~ The slab of 1.0mm.
To achieve the above object, the utility model uses following technical scheme:
A kind of rotary-cut plate knife roller type chipper comprising have 1# transfer unit, vertical rotor component, stationary knife and horizontal rotor portion Part, the 1# transfer unit, vertical rotor component, stationary knife and horizontal rotor component are sequentially connected, it is characterised in that: the 1# delivery section Plant fiber plate material is equably sent into the vertical rotor component by part;The vertical rotor component includes vertical rotor group, institute The cutting section for stating vertical rotor group is annular in shape;The rotation of rotor group is indulged described in 1# motor driven, the vertical rotor group is by the plant The longitudinally cutting material into strips of fibre plate material;The horizontal rotor component includes horizontal rotor group;Cross described in 2# motor driven The rotation of rotor group, the horizontal rotor group includes several fly cuttves;The stationary knife and the fly cutter of rotation cooperate, the cross Rotor group is to the strip-shaped materials transverse cuts.
As a kind of improvement of the utility model, the vertical rotor group includes that there are two vertical rotor, described two vertical rotors Opposite to be arranged in parallel, the direction of rotation of described two vertical rotors is opposite;Any vertical rotor includes vertical tool roller axis, small cutterhead And semi shield oil cylinder, the small cutterhead and semi shield oil cylinder are arranged at intervals on vertical tool roller axis.
As a kind of improvement of the utility model, the power output end of the 1# motor and a vertical tool roller axis connect It connects, two vertical tool roller axis are engaged by gear set.
As a kind of improvement of the utility model, the horizontal outer side of described two vertical rotors is equipped with upper snap-gauge and lower snap-gauge.
As a kind of improvement of the utility model, the vertical tool roller axis positioned at top relatively disposed in parallel, which is equipped with, to be adjusted Screw rod.
As a kind of improvement of the utility model, extruding conveying roller is additionally provided with before the vertical rotor component;The 1# conveying Component is belt type conveyer, and the belt type conveyer includes a roller and tail rod, solderless wrapped connection skin between the head roller and tail rod Band;The extruding conveying roller and head roller are arranged in parallel relatively, and the direction of rotation of the extruding conveying roller and head roller is opposite;One institute It states vertical tool roller axis and conveying roller is squeezed by chain wheel drive;Another described vertical tool roller axis passes through sprocket wheel driving head roller.
As a kind of improvement of the utility model, the horizontal rotor group further includes having horizontal tool roller axis, horizontal knife mounting plate and flying Knife mounting base, the horizontal knife mounting plate are fixed on horizontal tool roller axis, and the fly cutter mounting base is fixed on horizontal knife mounting plate, described Fly cutter is fixed in fly cutter mounting base.
As a kind of improvement of the utility model, it is equipped with chute below the stationary knife, is equipped with 2# below the chute and conveys Component.
As a kind of improvement of the utility model, the 1# motor is decelerating motor, and the 2# motor is variable-frequency motor.
It is after by adopting the above technical scheme the utility model has the advantages that
1, longitudinally cutting by vertical rotor component progress first for the plant fibers plate material such as wooden slab, then Transverse cuts are carried out by stationary knife and horizontal rotor component, so that plant fiber plate material is ultimately become predetermined size, is easy to make to revolve Slab reasonable employment after cutting is produced in OSB oriented shaving structural slab, is avoided the burning of the prior art from handling, is reached the utilization of resources Optimization.
2, small cutterhead and the setting of semi shield oil cylinder interval, the cutting section for facilitating realization to make vertical rotor group is annular in shape, makes plate object Expect the longitudinally cutting strip-shaped materials at rule.Such as, it is true by accurate semi shield oil cylinder and the control of small cutterhead for indulging rotor cutting gap It is fixed.Longitudinal slab cutting width, is claimed by user, can be adjusted between 18~30mm.
3,1# motor drives two vertical tool roller axis by sprocket wheel and gear set, makes two relatively disposed in parallel vertical rotor rotations Turn contrary, improves longitudinally cutting effect.It adjusts screw rod and effectively adjusts the vertical tool roller axis for being located at top relatively disposed in parallel, Two vertical direct fit clearances of rotor are controlled, longitudinally cutting effect is improved.Upper snap-gauge is arranged under in the horizontal outer side of vertical rotor Snap-gauge, enable it is longitudinally cutting after strip-shaped materials it is reliable and stable into horizontal rotor component.
4, the fly cutter of specific rotational structure makes fly cutter and stationary knife cooperate, and effective transverse cuts strip-shaped materials are to specified Size.Such as: 2# motor uses frequency control, generates different cutting speeds, meets user's production and is differently directed needed for structural slab Size.
5, it squeezes conveying roller and head roller is arranged in parallel relatively, vertical tool roller axis is respectively driven by sprocket wheel squeezes conveying roller and head Roller, make to squeeze conveying roller and head roller direction of rotation on the contrary, and squeeze conveying roller and head roller rotation speed it is relatively uniform, make plate Material indulges rotor component by uniform and stable feeding, improves cutting effect.
6, for convenience of discharging, chute and 2# transfer unit are equipped with below stationary knife, the material after enabling processing is stablized, reliably It send to designated position.
7, variable-frequency motor is selected, facilitates control revolving speed, fly cutter 401e is made to generate different cutting speeds, meets user's production Size needed for being differently directed structural slab.
Detailed description of the invention
Fig. 1 is the utility model schematic view of the front view;
Fig. 2 is the overlooking structure diagram of Fig. 1;
Fig. 3 is the schematic cross-sectional view of A~A in Fig. 2;
Fig. 4 is the schematic cross-sectional view of B~B in Fig. 2;
Fig. 5 is the schematic view of the front view of horizontal rotor group;
Fig. 6 is the overlooking structure diagram of Fig. 5;
Fig. 7 is the schematic view of the front view of fly cutter mounting base;
Fig. 8 is the structural schematic diagram of vertical rotor component and horizontal rotor component;
Fig. 9 is the overlooking structure diagram of Fig. 8;
Figure 10 is the configuration state schematic diagram of single vertical rotor;
Figure 11 is the side structure schematic view of Figure 10;
Figure 12 is the structural schematic diagram of 1# transfer unit;
Figure 13 is the overlooking structure diagram of Figure 12;
Figure 14 is the schematic cross-sectional view of C~C in Figure 13;
Figure 15 is the structural schematic diagram that tail roller adjusts bolt and tail rod mounting base;
Figure 16 is the top view of Figure 15.
In figure:
1,1# transfer unit;
101, belt, 102, tail roller, 103, head roller, 104, idler roller, 105, tail roller adjusting bolt, 106, the installation of tail rod Seat, 107, the rack of 1# transfer unit
2, rotor component is indulged,
202, rotor group, 202a, vertical tool roller axis, 202b, small cutterhead, 202c, semi shield oil cylinder, 202d, key, 202e, vertical knife are indulged 202i, roll shaft nut, 202f, gear set, 202g, upper snap-gauge, 202h, lower snap-gauge adjust screw rod,
203,1# motor;
3, stationary knife;
4, horizontal rotor component,
401, horizontal rotor group, 401a, horizontal knife mounting plate, 401b, fastening bolt, 401c, adjusting nut, 401d, fly cutter tune Section bolt, 401e, fly cutter, 401f, fly cutter mounting base, 401g, horizontal tool roller axis, 401h, casing, 401i, expansion sleeve,
402,2# motor;
5,2# transfer unit;
6, chute;
7, conveying roller is squeezed,
Z, longitudinally cutting direction, H, transverse cuts direction.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is described in more detail.
Embodiment one
As shown in Fig. 1~2, a kind of rotary-cut plate knife roller type chipper comprising have 1# transfer unit 1, vertical rotor component 2, Stationary knife 3 and horizontal rotor component 4, aforementioned 1# transfer unit 1, vertical rotor component 2, stationary knife 3 and horizontal rotor component 4 are sequentially connected, In:
Plant fiber plate material is equably sent into vertical rotor component 2 by aforementioned 1# transfer unit 1;
As shown in Fig. 3,3~11, aforementioned vertical rotor component 2 includes vertical rotor group 202, and aforementioned vertical rotor group 202 is cut Cut cross section;1# motor 203 drives vertical rotor group 202 to rotate, and aforementioned vertical rotor group 202 is by afore-mentioned plants fibre plate object Expect longitudinally cutting material into strips;
Aforementioned horizontal rotor component 4 includes horizontal rotor group 401;2# motor 402 drives aforementioned horizontal rotor group 401 to rotate, preceding Stating horizontal rotor group 401 includes several fly cutter 401e;Aforementioned stationary knife 3 and the fly cutter 401e of rotation cooperate, aforementioned horizontal rotor 401 pairs of aforementioned strip-shaped materials transverse cuts of group.
The preferred belt type conveyer of aforementioned 1# transfer unit 1.The belt type conveyer includes a roller 103 and tail rod 102, Around lace 101 between aforementioned head roller and tail rod;It is additionally provided with several idler rollers 104 between the head roller and tail rod, effectively adjusts The tensioning degree of belt.Aforementioned tail rod 102 is mounted in the rack 107 of 1# transfer unit by tail rod mounting base 106, aforementioned tail It is connected with tail roller in rod mounting base 106 and adjusts bolt 105, aforementioned tail roller adjusts the relative level position that bolt 105 adjusts tail rod 102 It sets, effectively adjusts the tensioning degree of belt.
The aforementioned preferred decelerating motor of 1# motor, the aforementioned preferred variable-frequency motor of 2# motor.
When normal work, plate material is uniformly sent into vertical rotor component 2 by 1# transfer unit 1;Then, cutting side along longitudinal direction To Z, rotor group is indulged by the longitudinally cutting material into strips of aforementioned plate material;Finally, 3 collective effect of horizontal rotor group 401 and stationary knife, Aforementioned strip-shaped materials are cut transversely into designated length by transversely cut direction H.
Embodiment two
As a kind of improvement of the utility model embodiment one, as shown in Fig. 1~11, the vertical rotor group 202 includes Two vertical rotors, both of the aforesaid are indulged rotor and are arranged in parallel relatively, and the direction of rotation that both of the aforesaid indulges rotor is opposite;Any vertical rotor It include vertical tool roller axis 202a, small cutterhead 202b and semi shield oil cylinder 202c, aforementioned small cutterhead 202b and the setting of the interval semi shield oil cylinder 202c On vertical tool roller axis 202a.Specific mounting structure can but be not limited to: small cutterhead 202b and semi shield oil cylinder 202c is pacified by strong 202d On vertical tool roller axis 202a, small cutterhead 202b and semi shield oil cylinder 202c are locked in vertical tool roller axis by vertical tool roller axis nut 202e On 202a.The power output end of 1# motor 203 is connect by sprocket wheel with a vertical tool roller axis 202a, two vertical tool roller axis 202a it Between engaged by gear set 202f.
To improve longitudinally cutting effect, inventor it is further proposed that: as shown in Fig. 1,3,8, be located at relatively disposed in parallel The vertical tool roller axis 202a of top, which is equipped with, adjusts screw rod 202i.By adjusting screw rod, effectively adjustment is located on relatively disposed in parallel The vertical tool roller axis of side, and finally control the fit clearance between two vertical rotors.
To improve longitudinally cutting effect, inventor is also proposed: as shown in Fig. 1~4,8~9, before aforementioned vertical rotor component also Equipped with extruding conveying roller 7.Specific structure: aforementioned extruding conveying roller 7 is located between vertical rotor component and 1# transfer unit;It is aforementioned to squeeze Pressure conveying roller 7 and head roller (103) are arranged in parallel relatively;One vertical tool roller axis 202a squeezes conveying roller 7 by chain wheel drive, another It is opposite with the direction of rotation of head roller 103 to squeeze conveying roller 7 by sprocket wheel driving head roller 103 by a vertical tool roller axis 202a.
For enable it is longitudinally cutting after strip-shaped materials it is reliable and stable into horizontal rotor component, inventor it is further proposed that: As shown in figure 8, the horizontal outer side of two vertical rotors is equipped with upper snap-gauge 202g and lower snap-gauge 202h.In use, making in vertical rotor group Under, material is by upper and lower snap-gauge, into horizontal rotor group.
When work, 1# motor drives two vertical tool roller axis by sprocket wheel and gear set, and two vertical tool roller axis pass through chain respectively Wheel drive squeezes conveying roller and head roller.In this way, the direction of rotation of two vertical rotors relatively disposed in parallel is opposite;Squeeze conveying roller It is also opposite with the direction of rotation of head roller.Strip-shaped materials after longitudinally cutting are reliable and stable into horizontal rotor by upper and lower snap-gauge Component.
Embodiment three
As a kind of improvement of the utility model embodiment one, as shown in Fig. 1~11, aforementioned horizontal rotor group 401 further includes There are horizontal tool roller axis 401g, horizontal knife mounting plate 401a and fly cutter mounting base 401f, aforementioned horizontal knife mounting plate 401a to be fixed in horizontal rotor On axis 401g, aforementioned fly cutter mounting base 401f is fixed on horizontal knife mounting plate 401a, and aforementioned fly cutter 401e passes through fastening bolt 401b is fixed on fly cutter mounting base 401f.
Specific mounting means can but be not limited to: as shown in figs. 6-7, horizontal knife mounting plate 401a and casing 401h are affixed, set Pipe 401h is fixed on horizontal tool roller axis 401g by expansion sleeve 401i.Adjusting nut 401c is fixed on fly cutter mounting base 401f, Fly cutter adjusts bolt 401d and adjusting nut 401c cooperation, and fly cutter adjusts bolt 401d and contacts with fly cutter 401e.In use, energy The installation site that bolt 401d adjusts fly cutter 401 is enough adjusted by fly cutter, cooperates fly cutter and stationary knife more preferably, promotes cutting effect Fruit.
Example IV
As a kind of improvement of the utility model embodiment one, as shown in Fig. 1,8, chute 6 is equipped with below aforementioned stationary knife 3, 2# transfer unit 5 is equipped with below aforementioned chute 6.The preferred belt conveyor of 2# transfer unit 5.
Material after cutting falls in 2# transfer unit by chute, and finally send by stabilization, reliably to designated position.
The utility model is not limited to the above embodiments, and all technical solutions formed using equivalent replacement or equivalence replacement are belonged to In the range of the requires of the utility model protection.

Claims (9)

1. a kind of rotary-cut plate knife roller type chipper comprising have 1# transfer unit (1), vertical rotor component (2), stationary knife (3) and cross Rotor component (4), the 1# transfer unit (1), vertical rotor component (2), stationary knife (3) and horizontal rotor component (4) are sequentially connected, It is characterized in that:
Plant fiber plate material is equably sent into the vertical rotor component (2) by the 1# transfer unit (1);
The vertical rotor component (2) includes vertical rotor group (202), and the cutting section of the vertical rotor group (202) is annular in shape;1# Motor (203) driving vertical rotor group (202) rotation, the vertical rotor group (202) indulge the plant fiber plate material To being cut into strip-shaped materials;
The horizontal rotor component (4) includes horizontal rotor group (401);2# motor (402) driving horizontal rotor group (401) rotation Turn, the horizontal rotor group (401) includes several fly cuttves (401e);The fly cutter (401e) phase of the stationary knife (3) and rotation Mutually cooperation, the horizontal rotor group (401) is to the strip-shaped materials transverse cuts.
2. a kind of rotary-cut plate knife roller type chipper according to claim 1, it is characterised in that: the vertical rotor group (202) Including there are two vertical rotor, described two vertical rotors are opposite to be arranged in parallel, and the direction of rotation of described two vertical rotors is opposite;
Any vertical rotor includes vertical tool roller axis (202a), small cutterhead (202b) and semi shield oil cylinder (202c), the small cutterhead (202b) and semi shield oil cylinder (202c) are arranged at intervals on vertical tool roller axis (202a).
3. a kind of rotary-cut plate knife roller type chipper according to claim 2, it is characterised in that: the 1# motor (203) Power output end is connect with a vertical tool roller axis (202a), and two vertical tool roller axis (202a) pass through gear set (202f) Engagement.
4. a kind of rotary-cut plate knife roller type chipper according to claim 2, it is characterised in that: the water of described two vertical rotors Flat outside is equipped with upper snap-gauge (202g) and lower snap-gauge (202h).
5. a kind of rotary-cut plate knife roller type chipper according to claim 2, it is characterised in that: be located at relatively disposed in parallel The vertical tool roller axis (202a) of top, which is equipped with, adjusts screw rod (202i).
6. a kind of rotary-cut plate knife roller type chipper according to claim 2, it is characterised in that:
It is additionally provided with before the vertical rotor component and squeezes conveying roller (7);
The 1# transfer unit (1) is belt type conveyer, and the belt type conveyer includes a roller (103) and tail rod (102), around lace (101) between the head roller and tail rod;
The extruding conveying roller (7) and head roller (103) are arranged in parallel relatively, the rotation for squeezing conveying roller (7) and head roller (103) Turn contrary;
One vertical tool roller axis (202a) squeezes conveying roller by chain wheel drive;Another described vertical tool roller axis (202a) passes through Sprocket wheel driving head roller (103).
7. a kind of rotary-cut plate knife roller type chipper according to claim 1, it is characterised in that: the horizontal rotor group (401) It further include having horizontal tool roller axis (401g), horizontal knife mounting plate (401a) and fly cutter mounting base (401f), the horizontal knife mounting plate (401a) is fixed on horizontal tool roller axis (401g), and the fly cutter mounting base (401f) is fixed on horizontal knife mounting plate (401a), institute Fly cutter (401e) is stated to be fixed on fly cutter mounting base (401f).
8. a kind of rotary-cut plate knife roller type chipper according to claim 1, it is characterised in that: set below the stationary knife (3) Have chute (6), is equipped with 2# transfer unit (5) below the chute (6).
9. a kind of rotary-cut plate knife roller type chipper according to claim 1, it is characterised in that: the 1# motor is the electricity that slows down Machine, the 2# motor is variable-frequency motor.
CN201920117047.4U 2019-01-24 2019-01-24 A kind of rotary-cut plate knife roller type chipper Active CN209682386U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920117047.4U CN209682386U (en) 2019-01-24 2019-01-24 A kind of rotary-cut plate knife roller type chipper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920117047.4U CN209682386U (en) 2019-01-24 2019-01-24 A kind of rotary-cut plate knife roller type chipper

Publications (1)

Publication Number Publication Date
CN209682386U true CN209682386U (en) 2019-11-26

Family

ID=68600060

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920117047.4U Active CN209682386U (en) 2019-01-24 2019-01-24 A kind of rotary-cut plate knife roller type chipper

Country Status (1)

Country Link
CN (1) CN209682386U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111469218A (en) * 2019-01-24 2020-07-31 江苏保龙机电制造有限公司 Rotary cutting board cutter roller type chipper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111469218A (en) * 2019-01-24 2020-07-31 江苏保龙机电制造有限公司 Rotary cutting board cutter roller type chipper

Similar Documents

Publication Publication Date Title
CN104526771A (en) Processing line for round timber
CN202077424U (en) Straw cutting machine with cross cutting function and longitudinal cutting function
CN101579866A (en) Disk type flaking machine
US4086944A (en) Method and apparatus for the production of timber from round logs
CN103878806A (en) Wood-plastic composite profile cutting machine
CN209682386U (en) A kind of rotary-cut plate knife roller type chipper
CN110712260A (en) Recombined bamboo filament dividing machine and working method thereof
CN203901345U (en) Honeycomb paperboard splitting machine
EP1525965A2 (en) Method for the manufacture of long chips or long shavings with defined dimensions
CN111469218A (en) Rotary cutting board cutter roller type chipper
CN102229165B (en) Peeling and shearing device of numerical control block-free peeling and shearing integrated lathe
CN109046668B (en) Wood crusher and crushing method
CN107127855B (en) Anti-jamming device of wood chipper
CN203380957U (en) Full-automatic multifunctional multi-blade saw cutting machine for woodworking
US4143692A (en) Method for the production of timber from round logs
CN209831968U (en) Bamboo fluffer
CN204382445U (en) Timber desintegrator
CN107214771B (en) A kind of wood material cutting machine
CN205685393U (en) A kind of food cutting cutter
CN203141618U (en) Feeding and conveying device of chipping machine
CN206796091U (en) A kind of wood chipping equipment bevel-type cutting mechanism of taper cutting roll body and its composition
CN104972539A (en) Crawler type slicing machine
CN105522633A (en) Knife chain type chipping machine
CN213797097U (en) Feeding roller mechanism of slicing machine
CN104308930B (en) A kind of wood chipper

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant