CN2933790Y - Drum type shaving machine - Google Patents
Drum type shaving machine Download PDFInfo
- Publication number
- CN2933790Y CN2933790Y CN 200620075407 CN200620075407U CN2933790Y CN 2933790 Y CN2933790 Y CN 2933790Y CN 200620075407 CN200620075407 CN 200620075407 CN 200620075407 U CN200620075407 U CN 200620075407U CN 2933790 Y CN2933790 Y CN 2933790Y
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- assembly
- feeding roller
- feed roll
- upper feed
- fly cutter
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Abstract
The utility mode relates to a chipper, especially relates to a drum chipper. The chipper comprises a foundation assembly (1), a knife roll assembly (2), a upper feeding roll assembly (3), a nether feeding roll assembly (4), an hydraulic system assembly (5), an electric motor main drive system (6), an inlet point (7), an outlet point (8). The knife roll assembly (2) is mounted on the foundation (11), the upper feeding roll assembly (3) is mounted on the foundation (11) through a pendulum shaft (27), the nether feeding roll assembly (4) is directly mounted on the foundation (11), and a big pulley (18) is fixed with a main shaft (17) through an expanding sleeve (22. The knife roll assembly (2) is also provided with a protective shield (21), an upper feeding roll (28-1) is composed of at least two upper feeding roll dental plates (28-1-1), a nether feeding roll (34-1) is composed of at least two nether feeding roll dental plates (34-1-1). The utility mode has low use cost and is easy to maintain or replace.
Description
Technical field
The utility model relates to wood chipping equipment, particularly a kind of drum chipper.
Background technology
Existing drum chipper is (as undersized log with harvesting of wood residue, skill fork branch etc.), wood machining residues is (as slab, lath, pencil, waste single boards etc.) and non-wood material (as bamboo wood, straw, wheat straw, cotton stalk etc.) be the cutting raw material, the raw material machining is become the machinery of the wooden or non-wooden sheet stock of certain specification, drum chipper can be as medium-density plate, particieboard, the machinery of getting the raw materials ready of industries such as papermaking, also can be used as the direct production equipment of wood chip finished product, present drum chipper generally comprises the organic block assembly, the rotor assembly, the upper feed roll assembly, following feeding roller assembly, hydraulic system assembly, the motor main transmission, charging aperture and discharging opening, the support assembly comprises bed plate, bed plate is positioned at the front end of feeding roller assembly down, the rotor assembly comprises fly cutter, big belt pulley in the driven by motor rotor assembly in the motor main transmission rotates, thereby driving the rotor assembly rotates, fly cutter in the rotor assembly also rotates thereupon, and the bed plate in the support assembly does not move, like this, after material is fed into fly cutter and bed plate joining part by charging aperture cutting pair is sentenced, under the cooperation of fly cutter that rotates and the bed plate that do not move, finish cutwork to material; And upper feed roll assembly and following feeding roller assembly mainly play the effect of feeding, and the two has included feeding roller.The drum chipper of existing this structure is wide to adaptability to raw material, can finish the work of cutting gauge earnest material, but mainly exist following shortcoming: (1), existing fly cutter is fixed on fly cutter on the rotor assembly of rotor assembly with bolt etc. by pressure knife block, rotate in the process of cutting at fly cutter, can cause the wearing and tearing of fly cutter seat in the rotor assembly, when may wear to a certain degree, the fly cutter seat just must change, can't repair, because the fly cutter seat generally is to be fixed on the liner plate of rotor assembly by methods such as welding, when therefore the fly cutter seat is changed, must change whole rotor assembly, so just cause following shortcoming, first, owing to comprise that the whole rotor assembly cost of fly cutter seat is higher, integral replacing has caused the rising of use cost, second, it is long downtime to change the fly cutter seat, has caused the decline of production efficiency; The 3rd, comprise that the whole rotor assembly weight of fly cutter seat is big, it is very inconvenient to install and remove, the maintenance and repair difficulty; (2), generally be to be connected between the big belt pulley in the existing rotor assembly and the main shaft by key etc., this syndeton causes relatively difficulty of mounting or dismounting big belt pulley, and this syndeton also makes big belt pulley and main shaft fix firmly inadequately, causes the loosening of big belt pulley easily through long-time rotation; (3), the upper feed roll of the upper feed roll assembly in the existing upper feed roll assembly is the overall structure pattern, the following feeding roller of the following feeding roller assembly in the following feeding roller assembly also is the overall structure pattern, upper feed roll, following feeding roller all be enclosed within separately the axle on, and with the axle Joint, because feeding roller is an overall structure, the shortcoming that exists is, first works as feeding roller will change, during repairing, must earlier axle be removed, could be with upper feed roll, following feeding roller is pulled down or is put from axle, and working strength of workers is big like this, it is long to change the repairing time, the maintenance and repair difficulty, downtime while is long, also can cause the decline of production efficiency; The second, can not re-use after the feeding roller wearing and tearing, this has also increased use cost.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of drum chipper that fly cutter seat improved, not easy to wear, upper feed roll and following feeding roller are the split structural shape on existing drum chipper basis is provided.
Realize that the above-mentioned purpose technical scheme is: a kind of drum chipper, comprise the support assembly, the rotor assembly, the upper feed roll assembly, following feeding roller assembly, hydraulic system assembly, the motor main transmission, charging aperture, discharging opening, the support assembly comprises support, screen cloth, the bed plate supporting seat, bed plate, the rotor assembly comprises the rotor assembly, main shaft, big belt pulley, pressure knife block, fly cutter, the rotor assembly comprises the fly cutter seat, the upper feed roll assembly comprises the upper feed roll seat, balance staff, the upper feed roll assembly, upper feed roll assembly transmission device, the upper feed roll assembly comprises upper feed roll, last axle, following feeding roller assembly comprises feeding roller assembly down, following feeding roller assembly transmission device, backing roll, following feeding roller assembly comprises feeding roller down, lower shaft, hydraulic system assembly comprises hydraulic power unit, hydraulic cylinder, the motor main transmission comprises motor, the rotor assembly is installed on the support, the upper feed roll assembly is installed on the support by balance staff, following feeding roller assembly is directly installed on the support, between the big belt pulley in motor and the rotor assembly for being in transmission connection, described big belt pulley is by expansion set and main shaft Joint, described rotor assembly also is provided with protective plate, described upper feed roll is made up of two upper feed roll tooth plates at least, and described feeding roller down is made up of two following feeding roller tooth plates at least.
Further, described protective plate be arranged on fly cutter following, fly cutter seat above.
Further, described upper feed roll is made up of four upper feed roll tooth plates.
Further, described feeding roller down is made up of four following feeding roller tooth plates.
Further, use the bolt Joint between upper feed roll tooth plate in the described upper feed roll and the last axle.
Further, use the bolt Joint between following feeding roller tooth plate in the described feeding roller down and the lower shaft.
Further, described fly cutter is set to three groups, and every group is two.
Further, described expansion set is set to two.
After adopting technique scheme, have a lot of benefits: the utility model is improved on existing drum chipper basis, main improvement structure is three places, one place is that big belt pulley is connected by key etc. with the connected mode of main shaft and has made the expansion set connection into, second place has increased protective plate in the rotor assembly, and the 3rd place is that upper feed roll and following feeding roller have all made the split structural shape into.(1), increased protective plate in the rotor assembly, prevent that the fly cutter seat is worn, thereby fly cutter seat and whole rotor assembly are played a protective role.Therefore, increase protective plate after, the first, prolonged service life of rotor assembly, because protective plate is compared with the rotor assembly, and cost descends greatly, therefore use cost is descended greatly simultaneously; The second, it is short downtime to change protective plate, less to the influence that production efficiency causes; The 3rd, the protective plate mounting or dismounting easily, and are simple to operate, safeguard and change conveniently; (2), big belt pulley is that expansion set is connected with the connected mode of main shaft, this expansion set connects locking mechanism makes the big belt pulley mounting or dismounting convenient, after this syndeton makes that also big belt pulley is installed on the main shaft simultaneously, fix very firmly, be difficult for causing the loosening of big belt pulley; (3), upper feed roll and following feeding roller have made the split structural shape into, the upper and lower feeding roller of this minute body structure, form by at least two upper and lower feeding roller tooth plates, upper and lower like this feeding roller tooth plate can directly be fixed on the axle, and its advantage is first, when upper and lower feeding roller tooth plate is changed, downtime is short, and replacing speed is fast, and is less to the influence that production efficiency causes; The second, when upper and lower feeding roller tooth plate is changed, no longer need the axle in the upper and lower feeding roller is pulled down earlier, and the upper and lower feeding roller tooth plate that only needs directly will to form upper and lower feeding roller is installed and removed and got final product, so labor strength is little, and is easy to maintenance, the mounting or dismounting time is short, and is simple to operate; The 3rd, after the upper and lower feeding roller wearing and tearing of original whole type structure, just can not re-use, and this split type upper and lower feeding roller, also be used interchangeably a period of time after the wearing and tearing, between the upper feed roll tooth plate as upper feed roll, down between the following feeding roller tooth plate of feeding roller, all be used interchangeably between upper feed roll tooth plate and the following feeding roller tooth plate etc., interchangeability is strong, improve the service life of feeding roller, greatly reduced use cost.
Description of drawings
Fig. 1 is a main TV structure schematic diagram of the present utility model;
Fig. 2 is a plan structure schematic diagram of the present utility model;
Fig. 3 removes the A-A cutaway view of motor main transmission for Fig. 2;
Fig. 4 is the sectional structure schematic diagram of rotor assembly of the present utility model;
Fig. 5 is the A-A cutaway view of Fig. 4;
Fig. 6 looks cutaway view for the master of upper feed roll assembly of the present utility model;
Fig. 7 is the A-A cutaway view of the utility model Fig. 6;
Fig. 8 is that the master of the utility model upper feed roll assembly (following feeding roller assembly) looks cutaway view;
Fig. 9 is the A-A cutaway view Amplified image of Fig. 8;
Figure 10 looks cutaway view for the master of feeding roller assembly under of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
To shown in Figure 10, a kind of drum chipper comprises support assembly 1, rotor assembly 2, upper feed roll assembly 3, following feeding roller assembly 4, hydraulic system assembly 5, motor main transmission 6, charging aperture 7, discharging opening 8 as Fig. 1.Support assembly 1 comprises support 11, screen cloth 12, bed plate supporting seat 13, bed plate 14, cover cap 15, bed plate 14 is installed on the bed plate supporting seat 13, bed plate is positioned at the front end of feeding roller assembly down, screen cloth 12 is fixed on the support 11, bed plate supporting seat 13 is installed on the support 11, and can release from the side of support 11 and change bed plate 14.Rotor assembly 2 comprises rotor assembly 16, main shaft 17, big belt pulley 18, pressure knife block 19, fly cutter 20, rotor assembly 16 comprises fly cutter seat 16-1, fly cutter seat 16-1 is welded on the liner plate 16-2 of rotor assembly 16, rotor assembly 2 also is provided with protective plate 21, protective plate 21 be arranged on fly cutter 20 below, above the fly cutter seat 16-1, fly cutter 20 usefulness high-strength bolts 39 are by the pressure knife block 19 above the fly cutter 20, protective plate 21 below the fly cutter 20 is fixed on fly cutter 20 on the rotor assembly 16, fly cutter 20 is set to three groups, every group is two, the sheet number of fly cutter 20 can be defined as one or more pieces according to the total length of fly cutter 20, when needing fly cutter 20 total lengths longer, just need several fly cuttves 20 to combine, fly cutter 20 total lengths if desired more also can be selected a slice fly cutter 20 for use.Main shaft 17 is by bearing 23 supportings, and the bearing block 24 that matches with bearing 23 is installed on the support 11.Upper feed roll assembly 3 comprises upper feed roll seat 26, balance staff 27, upper feed roll assembly 28, upper feed roll assembly transmission device 29, upper feed roll assembly 28 comprises upper feed roll 28-1, goes up axle 28-2, upper feed roll 28-1 is made up of four upper feed roll tooth plate 28-1-1, the sheet number that upper feed roll tooth plate 28-1-1 selects for use is at least two, with bolt 28-3 Joint, upper feed roll assembly transmission device 29 comprises decelerator 29-1, sprocket wheel 29-2 between upper feed roll tooth plate 28-1-1 among the upper feed roll 28-1 and the last axle 28-2; Last axle 28-2 is by bearing 30 supportings, and the bearing block 31 that matches with bearing 30 is installed on the upper feed roll seat 26, and upper feed roll seat 26 is contained on the support 11 by balance staff 27.Following feeding roller assembly 4 comprises feeding roller assembly 34 down, following feeding roller assembly transmission device 35, backing roll 36, following feeding roller assembly 34 comprises feeding roller 34-1 down, lower shaft 34-2, following feeding roller 34-1 is made up of four following feeding roller tooth plate 34-1-1, the sheet number that following feeding roller tooth plate 34-1-1 selects for use is at least under two, use bolt 34-3 Joint between following feeding roller tooth plate 34-1-1 among the following feeding roller 34-1 and the lower shaft 34-2, following feeding roller assembly transmission device 35 comprises decelerator 35-1, sprocket wheel 35-2, lower shaft 34-2 is by bearing 32 supportings, and the bearing block 33 that matches with bearing 32 is installed on the support 11.Hydraulic system assembly 5 comprises hydraulic power unit 37, hydraulic cylinder 38, motor main transmission 6 comprises motor 9, belt 10, rotor assembly 2 is installed on the support 11, upper feed roll assembly 3 is installed on the support 11 by balance staff 27, following feeding roller assembly 4 is directly installed on the support 11, be in transmission connection by belt 10 between the big belt pulley 18 in motor 9 and the rotor assembly 2, big belt pulley 18 is by expansion set 22 and main shaft 17 Joints, expansion set 22 is set to two, the number of expansion set 22 can be provided with as required, is connected with back-up ring 25 in main shaft 17 ends simultaneously.
Operation principle of the present utility model is: after material is fed into fly cutter 20 and is sentenced with the cutting pair of bed plate 14 joining parts by charging aperture 7, the big belt pulley 18 that motor 9 in the motor main transmission 6 drives in the rotor assembly 2 rotates, thereby driving rotor assembly 2 rotates, fly cutter 20 in the rotor assembly 2 also rotates thereupon, and the bed plate 14 in the support assembly 1 does not move, like this, when material is fed into fly cutter 20 and sentences with the cutting pair of bed plate 14 joining parts by charging aperture 7 after, under the cooperation of fly cutter 20 that rotates and the bed plate 14 that do not move, finish cutwork to material, in support assembly 1, also include screen cloth 12, the piece material that is cut falls via screen cloth 12, the discharging opening of falling under the screen cloth 12 8 is output, also bigger material is then taken up by the deep-slotted chip breaker of rotor assembly 16 in the rotor assembly 2 after the cutting, enter the cutting vice division chief of fly cutter 20 and bed plate 14 joining parts once more with the rotation of rotor assembly 2, cut once more, up to reaching specification.Upper feed roll assembly 3 and following feeding roller assembly 4 mainly play the effect of feeding.Upper feed roll assembly 3 drives a uppermost upper feed roll assembly 28 by decelerator 29-1 and rotates, carry out the chain transmission by sprocket wheel 29-2 then, several upper feed roll assemblies 28 that drive other are done the rotation of equidirectional, rotation direction is identical with the rotation direction of rotor assembly 2, upper feed roll assembly 3 is installed on the support by balance staff 27, according to the different thickness of cutting raw material, can swing up and down within the specific limits around balance staff 27.Following feeding roller assembly 4 drives a nethermost following feeding roller assembly 34 by decelerator 35-1 and rotates, carry out the chain transmission by sprocket wheel 35-2 then, several following feeding roller assemblies 34 that drive other are done the rotation of equidirectional, the direction of rotation of rotation direction and rotor assembly 2, following feeding roller assembly 34 directly is connected with support 11 with bearing block by bearing, backing roll 36 is rotated by chain drive by the most close its that following feeding roller assembly 34, backing roll 36 can prevent the stifled machines of card such as wood particle, also can play the effect that chip is removed simultaneously.And the hydraulic power unit 37 in the hydraulic system assembly 5 drives hydraulic cylinder 38 work, hydraulic cylinder 38 can link to each other with the cover cap 15 in the support assembly 1, thereby can be with cover cap 15 opening and closing, hydraulic cylinder 38 also can be fixed on support 11 bottoms by an end, the other end links to each other with upper feed roll seat 26, thereby when finishing the material feeding, last feeding assembly 3 swings up and down within the specific limits around balance staff 27.
Claims (8)
1, a kind of drum chipper, comprise support assembly (1), rotor assembly (2), upper feed roll assembly (3), following feeding roller assembly (4), hydraulic system assembly (5), motor main transmission (6), charging aperture (7), discharging opening (8), support assembly (1) comprises support (11), screen cloth (12), bed plate supporting seat (13), bed plate (14), rotor assembly (2) comprises rotor assembly (16), main shaft (17), big belt pulley (18), pressure knife block (19), fly cutter (20), rotor assembly (16) comprises fly cutter seat (16-1), upper feed roll assembly (3) comprises upper feed roll seat (26), balance staff (27), upper feed roll assembly (28), upper feed roll assembly transmission device (29), upper feed roll assembly (28) comprises upper feed roll (28-1), last axle (28-2), following feeding roller assembly (4) comprises feeding roller assembly (34) down, following feeding roller assembly transmission device (35), backing roll (36), following feeding roller assembly (34) comprises feeding roller (34-1) down, lower shaft (34-2), hydraulic system assembly (5) comprises hydraulic power unit (37), hydraulic cylinder (38), motor main transmission (6) comprises motor (9), rotor assembly (2) is installed on the support (11), upper feed roll assembly (3) is installed on the support (11) by balance staff (27), following feeding roller assembly (4) is directly installed on the support (11), between the big belt pulley (18) in motor (9) and the rotor assembly (2) for being in transmission connection, it is characterized in that: described big belt pulley (18) is by expansion set (22) and main shaft (17) Joint, described rotor assembly (2) also is provided with protective plate (21), described upper feed roll (28-1) is made up of two upper feed roll tooth plates (28-1-1) at least, and described feeding roller (34-1) down is made up of two following feeding roller tooth plates (34-1-1) at least.
2, drum chipper according to claim 1 is characterized in that: described protective plate (21) be arranged on fly cutter (20) following, fly cutter seat (16-1) above.
3, drum chipper according to claim 1 and 2 is characterized in that: described upper feed roll (28-1) is made up of four upper feed roll tooth plates (28-1-1).
4, drum chipper according to claim 1 and 2 is characterized in that: described feeding roller (34-1) down is made up of four following feeding roller tooth plates (34-1-1).
5, drum chipper according to claim 1 and 2 is characterized in that: use bolt (28-3) Joint between upper feed roll tooth plate (28-1-1) in the described upper feed roll (28-1) and the last axle (28-2).
6, drum chipper according to claim 1 and 2 is characterized in that: use bolt (34-3) Joint between following feeding roller tooth plate (34-1-1) in the described feeding roller (34-1) down and the lower shaft (34-2).
7, drum chipper according to claim 1 and 2 is characterized in that: described fly cutter (20) is set to three groups, and every group is two.
8, drum chipper according to claim 1 and 2 is characterized in that: described expansion set (22) is set to two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620075407 CN2933790Y (en) | 2006-07-28 | 2006-07-28 | Drum type shaving machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620075407 CN2933790Y (en) | 2006-07-28 | 2006-07-28 | Drum type shaving machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2933790Y true CN2933790Y (en) | 2007-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620075407 Expired - Fee Related CN2933790Y (en) | 2006-07-28 | 2006-07-28 | Drum type shaving machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2933790Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722553B (en) * | 2009-11-26 | 2012-09-05 | 四川省新岷江人造板机器有限责任公司 | Stock preparation method for long wood shavings for manufacturing oriented shaving board |
| CN104249405A (en) * | 2013-06-27 | 2014-12-31 | 江苏大唐机械有限公司 | Mounting structure of drum chipper |
| CN104400860A (en) * | 2014-10-16 | 2015-03-11 | 张祥 | Production method of low-fault rate feeding tooth roller-quick release maintenance type drum slicer |
| CN104802266A (en) * | 2014-01-28 | 2015-07-29 | 江苏永立机械有限公司 | Knife roll of novel drum chipper |
| CN104802270A (en) * | 2015-04-13 | 2015-07-29 | 江苏大唐机械有限公司 | Engine base assembly of drum chipper |
| CN104802267A (en) * | 2015-04-13 | 2015-07-29 | 江苏大唐机械有限公司 | Knife roll device of drum chipper |
| CN104859022A (en) * | 2015-06-19 | 2015-08-26 | 王晶怡 | Wooden waste furniture processing equipment |
| CN106956344A (en) * | 2017-04-07 | 2017-07-18 | 山东金格瑞机械有限公司 | Wood chip processing integrated machine |
| CN110053840A (en) * | 2019-05-07 | 2019-07-26 | 南京林恒机械制造有限公司 | Entire bundle stalk bale broken decomposes pulverizer |
| CN110815472A (en) * | 2019-11-23 | 2020-02-21 | 南平市延平秋丰机械有限责任公司 | Combined drum chipper suitable for cutting thick block, thin sheet or strip-shaped wooden matter |
| CN114311187A (en) * | 2021-12-28 | 2022-04-12 | 南京乾锋机械设备有限公司 | Chipping machine fly cutter roll shaft and fly cutter with reversal anti-collision function |
-
2006
- 2006-07-28 CN CN 200620075407 patent/CN2933790Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722553B (en) * | 2009-11-26 | 2012-09-05 | 四川省新岷江人造板机器有限责任公司 | Stock preparation method for long wood shavings for manufacturing oriented shaving board |
| CN104249405A (en) * | 2013-06-27 | 2014-12-31 | 江苏大唐机械有限公司 | Mounting structure of drum chipper |
| CN104802266A (en) * | 2014-01-28 | 2015-07-29 | 江苏永立机械有限公司 | Knife roll of novel drum chipper |
| CN104400860B (en) * | 2014-10-16 | 2016-06-01 | 张祥 | Less trouble feeding tooth roller tears the manufacture method of maintenance formula drum-type slicing machine soon open |
| CN104400860A (en) * | 2014-10-16 | 2015-03-11 | 张祥 | Production method of low-fault rate feeding tooth roller-quick release maintenance type drum slicer |
| CN104802270A (en) * | 2015-04-13 | 2015-07-29 | 江苏大唐机械有限公司 | Engine base assembly of drum chipper |
| CN104802267A (en) * | 2015-04-13 | 2015-07-29 | 江苏大唐机械有限公司 | Knife roll device of drum chipper |
| CN104859022A (en) * | 2015-06-19 | 2015-08-26 | 王晶怡 | Wooden waste furniture processing equipment |
| CN106956344A (en) * | 2017-04-07 | 2017-07-18 | 山东金格瑞机械有限公司 | Wood chip processing integrated machine |
| CN110053840A (en) * | 2019-05-07 | 2019-07-26 | 南京林恒机械制造有限公司 | Entire bundle stalk bale broken decomposes pulverizer |
| CN110815472A (en) * | 2019-11-23 | 2020-02-21 | 南平市延平秋丰机械有限责任公司 | Combined drum chipper suitable for cutting thick block, thin sheet or strip-shaped wooden matter |
| CN114311187A (en) * | 2021-12-28 | 2022-04-12 | 南京乾锋机械设备有限公司 | Chipping machine fly cutter roll shaft and fly cutter with reversal anti-collision function |
| CN114311187B (en) * | 2021-12-28 | 2022-07-29 | 南京乾锋机械设备有限公司 | Chipping machine fly cutter roller shaft with reverse anti-collision function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 Termination date: 20150728 |
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| EXPY | Termination of patent right or utility model |