CN206780967U - A kind of filter of plastic extruder - Google Patents
A kind of filter of plastic extruder Download PDFInfo
- Publication number
- CN206780967U CN206780967U CN201720496760.5U CN201720496760U CN206780967U CN 206780967 U CN206780967 U CN 206780967U CN 201720496760 U CN201720496760 U CN 201720496760U CN 206780967 U CN206780967 U CN 206780967U
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- China
- Prior art keywords
- filter
- knife rest
- rotating shaft
- filter core
- spiral knife
- Prior art date
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- Withdrawn - After Issue
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a kind of filter of plastic extruder, belongs to field of mechanical technique.It solves the problems, such as the filter efficiency difference of existing plastic extruder filter.The filter of this plastic extruder includes housing, filter core and scraper, filter core is located in housing, scraper is located in filter core, filter core is in cone, scraper includes rotating shaft, the spiral knife rest of the twist flat of several fast pulleys and at least two, there is the material path run through in fast pulley, each fast pulley interval is connected in rotating shaft, and end is relatively large in diameter towards the direction of filter core diameter small end along filter core, the diameter of fast pulley gradually decreases, the fitting of spiral knife rest is connected on the lateral wall of fast pulley, interval is fixed with several blades on spiral knife rest, between two blades adjacent on another spiral knife rest along the position of the wherein one spiral knife rest cutter in axial direction of rotating shaft.The filter of this plastic extruder has the advantages of filter efficiency is good.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of filter of plastic extruder.
Background technology
Plastic industry is in order to meet the needs of various different products, during plastic pellet is prepared with plastic extruder
Need to use filter, to improve the quality of plastic products.
The filter of existing plastic extruder, for example, Chinese patent literature data disclose plastic extruder without silk
Net filtration device [application number：201520085085.8；Authorization Notice No.：CN204431696U], it mainly includes sequentially connecting
Feeding sleeve, outer barrel and impurity set, the top of feeding sleeve is provided with the charging aperture being connected with extruder, circle is installed with outer tube inner chamber
Tubular leaves gap between the filter mechanism and outer tube inner wall and forms discharging chamber without silk screen filter mechanism, discharging chamber and outer barrel
The feed opening that lower section is set is communicated, and filter mechanism is connected and composed by being combined inside and outside filter sheath and support set, before the inner chamber of filter sheath
End is connected with the feed cavity in feeding sleeve, and the taper impurity chamber that intracavity posterior end and the impurity of filter sheath cover connects, filter sheath
A scraper that can be moved along its inwall is provided with inner chamber.
The plastic extruder of this kind of structure without silk screen filter device, the impurity being adhered on screen pack is scraped by scraper
Under, and impurity is expressed in impurity chamber and discharged by the mobile mating reaction of gland and scraper.But the modeling of this kind of structure
Expect extruder without silk screen filter device, no silk screen filter mechanism is cylindrical, the flow direction change of material greatly, Flow of Goods and Materials
Not smooth enough, scraper is moved left and right by power source, when scraper stretches out, will not hinder the flowing of material, but when scraper contracts
Hui Shi, by material toward pulling back the flowing of material can be caused not smooth enough, so that the filter efficiency of material reduces；And scraper
Move mode be that left and right moves back and forth, be linear scraper, scraper, which moves back and forth, can only once realize and once strike off, scraper
It is low to scrape deimpurity efficiency, scrapes that resulting net force is poor, so that the filter effect of filter mechanism is deteriorated, reduces filter efficiency.
The content of the invention
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, it is proposed that a kind of plastic extruder
Filter, the technical problem of solution are how to improve the filter efficiency of filter.
The purpose of this utility model can be realized by following technical proposal：A kind of filter of plastic extruder, bag
Housing, filter core and scraper are included, the filter core is located in housing, and the scraper is located in filter core, it is characterised in that the filter core is in
Cone, the scraper includes the spiral knife rest of rotating shaft, several fast pulleys and at least two twist flat, described solid
There is the material path run through, each fast pulley interval is connected in rotating shaft, and is relatively large in diameter end towards filter along filter core in fixed wheel
The direction of core diameter small end, the diameter of the fast pulley gradually decrease, and the spiral knife rest fitting is connected in the fast pulley
Lateral wall on, on the spiral knife rest interval be fixed with several blades, along the axial direction of a rotating shaft wherein circular knife
Between two blades adjacent on another spiral knife rest of the position of frame cutter.
This filter core be in cone, make material flow direction change it is small, flowing it is more smooth, be relatively large in diameter along filter core
End gradually decreases towards the direction of filter core diameter small end, the diameter of fast pulley, and spiral knife rest is bonded the outside for being connected in fast pulley
On wall, the shape of scraper and the shape of filter core is set to match, the blade of scraper can be fitted on the madial wall of filter core, in scraper
With the material path passed through for material, scraper can strike off when rotating to the impurity being adhered on filter core, and scraper can push away
Dynamic impurity movement, improve the expulsion efficiency of impurity；And scraper is rotation, can promote Flow of Goods and Materials, make Flow of Goods and Materials suitable
Freely, so as to improve filter effect of the filter core to material, so as to improve the filter efficiency of this filter.Spiral knife rest is in flat
Make the wider width of spiral knife rest, the installation contact area between blade and spiral knife rest can be improved, improve the installation of blade
Firmness, so as to which that improves scraper scrapes resulting net force, the impurity adhered on filter core can preferably be struck off, improve the filtering of filter core
Effect, so as to improve the filter efficiency of this filter；Blade on spiral knife rest is spaced, i.e., blade is segmented
, blade stress concentration is avoided, is unlikely to deform blade, will not be blocked between blade and filter core, along the axial direction wherein one of rotating shaft
Between two blades adjacent on another spiral knife rest of the position of bar spiral knife rest cutter, on all spiral knife rests
After blade rotates a circle, the madial wall of filter core can be completely covered, the impurity on filter core can all be struck off, improve and shave
Power, the filter effect of filter core is improved, so as to improve the filter efficiency of this filter.
In a kind of filter of above-mentioned plastic extruder, the blade protrusion of the blade is arranged on spiral knife rest
Side, lateral wall of the blade away from rotating shaft are flush with lateral wall of the spiral knife rest away from rotating shaft.The blade protrusion of blade
The side of spiral knife rest is arranged on, the direction of blade protrusion is consistent with the direction that rotating shaft rotates, and makes blade by the impurity on filter core
After striking off and impurity can be pushed at impurities outlet, resulting net force is scraped in raising, the filter effect of filter core is improved, so as to improve this filtering
The filter efficiency of device.And the lateral wall of blade and the lateral wall of spiral knife rest can be abutted on the madial wall of filter core, spiral shell
Rotary knife frame can play a part of aiding in striking off the impurity on filter core, and raising scrapes resulting net force, the filter effect of filter core improved, so as to carry
The filter efficiency of this high filter.
In a kind of filter of above-mentioned plastic extruder, it is interval with the lateral wall of the spiral knife rest some
Individual mounting groove, the mounting groove run through the side of spiral knife rest, and the blade is embedded into corresponding mounting groove, and the blade leads to
Cross fastener to be fixedly connected with spiral knife rest, the blade of the blade is located at outside mounting groove.Mounting groove is recessed setting, mounting groove
The installation site of blade is provided, blade is fixedly connected with spiral knife rest by fastener such as bolt, it is convenient to be connected, and mounting groove passes through
Wear the side of spiral knife rest, the opposite side of spiral knife rest plays a part of to blade against improving the mounting stability of blade, make
After a period of time, blade can be pulled down by turn Fastener, blade is changed or repaired, cost is low, makes knife
Piece, which remains, preferably scrapes resulting net force.
In a kind of filter of above-mentioned plastic extruder, along size of rotating shaft axial direction etc. between two neighboring blade
In or less than size of the blade along rotating shaft axial direction.This kind of structure, after ensureing that rotating shaft rotation is turned around, blade can be by filter core
Side wall is covered comprehensively, and rotating shaft rotation is turned around, and filter core is stripped off one time, does not stay dead angle, and resulting net force is scraped in raising, improves the filtering effect of filter core
Fruit, so as to improve the filter efficiency of this filter.
In a kind of filter of above-mentioned plastic extruder, thickness of the blade along rotating shaft radial direction is spiral knife rest
Along the 1/3-1/2 of rotating shaft radial thickness.This kind of structure, make the firmness after blade installation high, improve the stability of blade, carry
High blade scrapes resulting net force, improves the filter effect of filter core, so as to improve the filter efficiency of this filter.
In a kind of filter of above-mentioned plastic extruder, the angle between the madial wall of the filter core and rotating shaft exists
Between 5-10 °.Angle between the madial wall of filter core and rotating shaft makes the more smooth of Flow of Goods and Materials between 5-10 °, so as to carry
The filter efficiency of this high filter.
In a kind of filter of above-mentioned plastic extruder, the fast pulley includes retainer ring and some supports
Bar, one end of some support bars are fixedly connected with rotating shaft, and the other end is fixedly connected with the madial wall of retainer ring, and adjacent two
Root support bar, retainer ring and rotating shaft surround the material path, and the spiral knife rest fitting is connected in the lateral wall of the retainer ring
On.Retainer ring and support bar are engaged, and make that the area of material path is big, and charging rate is fast, and Flow of Goods and Materials is smooth, and by some
Root support bar fixes retainer ring, can improve the intensity of retainer ring, you can to improve the intensity of spiral knife rest, so as to improve knife
The stability of piece, that improves blade scrapes resulting net force.
In a kind of filter of above-mentioned plastic extruder, the both ends of the spiral knife rest respectively with corresponding fixation
Ring is fixedly connected with.The both ends of spiral knife rest are fixedly connected with corresponding retainer ring respectively, and also there is phase in the centre position of spiral knife rest
The retainer ring answered is supported to spiral knife rest, and the intensity of spiral knife rest is high, the stability of blade, and make blade all the time with filter core
Madial wall be in contact, raising scrape resulting net force, the filter effect of filter core is improved, so as to improve the filter efficiency of this filter.
In a kind of filter of above-mentioned plastic extruder, the housing includes feeding sleeve, outer barrel and impurity set, institute
The centre that outer barrel is located at feeding sleeve and impurity set is stated, the top of the feeding sleeve is provided with charging aperture, and the madial wall of the outer barrel is in
Taper, the filter core are located in outer barrel, and the direction covered along feeding sleeve towards impurity, the diameter of the filter core gradually decreases, described outer
The diameter of medial wall of the tube also gradually decreases, and the outer barrel has feed opening close to one end of feeding sleeve.The mistake that material passes through filter core
It can be entered in the cavity between filter core and outer barrel after filter, then madial wall of the material after filtering along outer barrel slides,
Flow in feed opening and be then discharged out, the madial wall of outer barrel is tapered and the position of feed opening makes the material after filter element filtering
It can discharge faster, material will not block, and make Flow of Goods and Materials smooth, so as to improve the filter efficiency of this filter.
In a kind of filter of above-mentioned plastic extruder, the filter of the plastic extruder also includes power
Source, one end of the rotating shaft pass feeding sleeve, and the power source is connected with rotating shaft.Rotated by power source drive scraper, automatically
Change degree is high, and the effect of the control such as rotating speed of scraper is good, so as to the flow velocity of control material, improves the filtering of this filter
Effect.
Compared with prior art, the filter of plastic extruder provided by the utility model has advantages below：
1st, the filter core of this filter and scraper are that the flow direction for making material in cone changes small, material flow
Dynamic more smooth, scraper is during rotation while being struck off to the impurity adhered on filter core, while the flowing to material
Play a part of auxiliary propulsion, make Flow of Goods and Materials smooth, so as to improve filter effect of the filter core to material, improve this filter
Filter efficiency.
2nd, the spiral knife rest of this filter scraper is in flat, improves the installation contact surface between blade and spiral knife rest
Product, that improves blade firmly installs degree, and resulting net force is scraped so as to improve, and improves the filter effect of filter core, so as to improve this filtering dress
The filter efficiency put.
3rd, the blade on this filter scraper is spaced to avoid blade stress concentration, be hardly damaged blade,
After blade rotates a circle, the madial wall of filter core can be completely covered, the impurity on filter core can all be removed, improve and shave
Power, the filter effect of filter core is improved, so as to improve the filter efficiency of this filter.
Brief description of the drawings
Fig. 1 is the overall structure sectional view of this plastic extruder filter.
Fig. 2 is the overall structure diagram of this plastic extruder filter scraper.
In figure, 1, housing；11st, feeding sleeve；12nd, outer barrel；13rd, impurity set；14th, charging aperture；15th, feed opening；2nd, filter core；3、
Scraper；31st, rotating shaft；32nd, fast pulley；321st, material path；322nd, retainer ring；323rd, support bar；33rd, spiral knife rest；34th, blade；
35th, blade；36th, mounting groove；37th, fastener；4th, power source.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, the filter of this plastic extruder includes housing 1, filter core 2, scraper 3 and power source 4.
Housing 1 includes feeding sleeve 11, outer barrel 12 and impurity set 13, and outer barrel 12 is located in feeding sleeve 11 and impurity set 13
Between, the top of feeding sleeve 11 is provided with charging aperture 14, and the madial wall of outer barrel 12 is tapered, and filter core 2 is located in outer barrel 12, and filter core 2 is in
Cone, the shape of filter core 2 and the madial wall of outer barrel 12 match, and 13 direction, the diameter of filter core 2 are covered along feeding sleeve 11 towards impurity
Gradually decrease, the diameter of the madial wall of outer barrel 12 also gradually decreases, and outer barrel 12 has feed opening 15 close to one end of feeding sleeve 11.
Scraper 3 is located in filter core 2, and in the present embodiment, scraper 3 includes 31, three fast pulleys 32 of rotating shaft and two helically
The spiral knife rest 33 of shape flat, in actual production, the quantity of fast pulley 32 can be four or five, spiral knife rest 33
Quantity can be three or four.The interval of fast pulley 32 is connected in rotating shaft 31, and end is relatively large in diameter towards filter core 2 along filter core 2
The direction of diameter small end, the diameter of fast pulley 32 gradually decrease.One end of rotating shaft 31 passes feeding sleeve 11, and power source 4 is with turning
Axle 31 is connected, and in the present embodiment, power source 4 is motor and decelerator, and in actual production, power source 4 can be rotary cylinder.
In the present embodiment, the angle between the madial wall of filter core 2 and rotating shaft 31 is 7.5 °, in actual production, filter core 2
Angle between madial wall and rotating shaft 31 can be 5 ° or 10 °.
In the present embodiment, fast pulley 32 includes retainer ring 322 and three support bars 323, one end of three support bars 323 are equal
It is fixedly connected with rotating shaft 31, madial wall of the other end with retainer ring 322 is fixedly connected with, adjacent two support bars 323, retainer ring 322
Material path 321 is surrounded with rotating shaft 31, the fitting of spiral knife rest 33 is connected on the lateral wall of retainer ring 322, and the two of spiral knife rest 33
End is fixedly connected with corresponding retainer ring 322 respectively, and in actual production, fast pulley 32 can include retainer ring 322 and two branch
Strut 323, or fast pulley 32 can include retainer ring 322 and four support bars 323.
As shown in Fig. 2 being interval with multiple mounting grooves 36 on the lateral wall of spiral knife rest 33, mounting groove 36 runs through circular knife
The side of frame 33, blade 34 are embedded into corresponding mounting groove 36, and blade 34 passes through fastener 37 such as bolt and spiral knife rest 33
It is fixedly connected with, lateral wall of the blade 34 away from rotating shaft 31 is flush with lateral wall of the spiral knife rest 33 away from rotating shaft 31, the present embodiment
In, thickness of the blade 34 along the radial direction of rotating shaft 31 is spiral knife rest 33 along the 2/5 of the radial thickness of rotating shaft 31, in actual production, knife
Thickness of the piece 34 along the radial direction of rotating shaft 31 can be circular knife frame 33 along the 1/3 or 1/2 of the radial thickness of rotating shaft 31.The knife of blade 34
Sword 35 is located at outside mounting groove 36, i.e., the blade 35 of blade 34 protrudes the side for being arranged on spiral knife rest 33, along the axial direction of rotating shaft 31
Between two blades 34 adjacent on another spiral knife rest 33 of the position of wherein one cutter 34 of spiral knife rest 33, phase
It is equal to or less than size of the blade 35 along the axial direction of rotating shaft 31 along the size of the axial direction of rotating shaft 31 between adjacent two blades 34.
In the present embodiment, filter core 2 includes filter sheath and support set, and support set is between filter sheath and outer barrel 12, support
Set plays a part of supporting filter sheath, and in actual production, filter core 2 can also be cartridge filter.
During work, material is entered in the inner chamber of outer barrel 12 from the charging aperture 14 of feeding sleeve 11, material of the filter core 2 to entrance
Filtered, qualified plastics are entered in the cavity between the lateral wall of filter core 2 and the madial wall of outer barrel 12 by filter core 2, then
Feed opening 15 is flow to along the madial wall of outer barrel 12, from the blanking of feed opening 15, the impurity filtered out by filter core 2 can be adhered to filter core
On 2.Lateral wall and blade 34 lateral wall away from rotating shaft 31 of the spiral knife rest 33 away from rotating shaft 31 abuts in the madial wall of filter core 2
On, power source 4 drives scraper 3 to rotate, and the edge of spiral knife rest 33 and the blade 35 of blade 34 are to being adhered on filter core 2
Impurity is struck off, and impurity is come off, during then the impurity covers 13 with scraper 3 and Flow of Goods and Materials to impurity, regularly to impurity
Set 13 is cleared up, and realizes the filtering of material.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more used herein housing 1, feeding sleeve 11, outer barrel 12, impurity set 13, charging aperture 14, feed opening 15,
Filter core 2, scraper 3, rotating shaft 31, fast pulley 32, material path 321, retainer ring 322, support bar 323, spiral knife rest 33, blade 34,
The terms such as blade 35, mounting groove 36, fastener 37, power source 4, but it is not precluded from the possibility using other terms.Use this
A little terms are used for the purpose of more easily describing and explaining essence of the present utility model；It is construed as what any one was added
Limitation is all disagreed with the utility model spirit.
Claims (10)
1. a kind of filter of plastic extruder, including housing (1), filter core (2) and scraper (3), the filter core (2) are located at shell
In body (1), the scraper (3) is located in filter core (2), it is characterised in that the filter core (2) is in cone, scraper (3) bag
Include the spiral knife rest (33) of rotating shaft (31), several fast pulleys (32) and at least two twist flat, the fast pulley
(32) there is the material path (321) that runs through in, each fast pulley (32) interval is connected in rotating shaft (31), and along filter core
(2) it is relatively large in diameter end to gradually decrease towards the direction of filter core (2) diameter small end, the diameter of the fast pulley (32), the spiral
Knife rest (33) fitting is connected on the lateral wall of the fast pulley (32), and interval is fixed with several on the spiral knife rest (33)
Blade (34), it is located at another institute along the position of wherein one spiral knife rest (33) cutter (34) in the axial direction of rotating shaft (31)
State between two blades (34) adjacent on spiral knife rest (33).
A kind of 2. filter of plastic extruder according to claim 1, it is characterised in that the knife of the blade (34)
Sword (35) protrudes the side for being arranged on spiral knife rest (33), lateral wall of the blade (34) away from rotating shaft (31) and spiral knife rest
(33) lateral wall away from rotating shaft (31) is flush.
A kind of 3. filter of plastic extruder according to claim 1, it is characterised in that the spiral knife rest (33)
Lateral wall on be interval with several mounting grooves (36), the mounting groove (36) runs through the side of spiral knife rest (33), described
Blade (34) is embedded into corresponding mounting groove (36), and the blade (34) is mutually solid with spiral knife rest (33) by fastener (37)
Even, the blade (35) of the blade (34) is located at mounting groove (36) outside.
A kind of 4. filter of plastic extruder according to claim 1 or 2 or 3, it is characterised in that two neighboring knife
It is equal to or less than size of the blade (35) along rotating shaft (31) axial direction along the size of rotating shaft (31) axial direction between piece (34).
A kind of 5. filter of plastic extruder according to claim 1 or 2 or 3, it is characterised in that the blade
(34) it is 1/3-1/2 of the spiral knife rest (33) along rotating shaft (31) radial thickness along the thickness of rotating shaft (31) radial direction.
A kind of 6. filter of plastic extruder according to claim 1 or 2 or 3, it is characterised in that the filter core
(2) angle between madial wall and rotating shaft (31) is between 5-10 °.
A kind of 7. filter of plastic extruder according to claim 1 or 2 or 3, it is characterised in that the fast pulley
(32) retainer ring (322) and some support bars (323) are included, one end of some support bars (323) is and rotating shaft
(31) it is fixedly connected with, madial wall of the other end with retainer ring (322) is fixedly connected with, adjacent two support bars (323), retainer ring
(322) and rotating shaft (31) surrounds the material path (321), and spiral knife rest (33) fitting is connected in the retainer ring (322)
Lateral wall on.
A kind of 8. filter of plastic extruder according to claim 7, it is characterised in that the spiral knife rest (33)
Both ends be fixedly connected with respectively with corresponding retainer ring (322).
A kind of 9. filter of plastic extruder according to claim 1 or 2 or 3, it is characterised in that the housing
(1) feeding sleeve (11), outer barrel (12) and impurity set (13) are included, the outer barrel (12) is located at feeding sleeve (11) and impurity set (13)
Centre, the top of the feeding sleeve (11) is provided with charging aperture (14), and the madial wall of the outer barrel (12) is tapered, the filter core
(2) it is located in outer barrel (12), is gradually decreased along feeding sleeve (11) towards the direction of impurity set (13), the diameter of the filter core (2), institute
The diameter for stating outer barrel (12) madial wall also gradually decreases, and the outer barrel (12) has feed opening close to one end of feeding sleeve (11)
(15)。
A kind of 10. filter of plastic extruder according to claim 9, it is characterised in that the plastic extruder
Filter also include power source (4), one end of the rotating shaft (31) passes feeding sleeve (11), and the power source (4) is with turning
Axle (31) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720496760.5U CN206780967U (en) | 2017-05-05 | 2017-05-05 | A kind of filter of plastic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720496760.5U CN206780967U (en) | 2017-05-05 | 2017-05-05 | A kind of filter of plastic extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206780967U true CN206780967U (en) | 2017-12-22 |
Family
ID=60710161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720496760.5U Withdrawn - After Issue CN206780967U (en) | 2017-05-05 | 2017-05-05 | A kind of filter of plastic extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206780967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945254A (en) * | 2017-05-05 | 2017-07-14 | 台州职业技术学院 | A kind of filter of plastic extruder |
-
2017
- 2017-05-05 CN CN201720496760.5U patent/CN206780967U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945254A (en) * | 2017-05-05 | 2017-07-14 | 台州职业技术学院 | A kind of filter of plastic extruder |
| CN106945254B (en) * | 2017-05-05 | 2019-11-15 | 台州职业技术学院 | A kind of filter device of plastic extruder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171222 Effective date of abandoning: 20191115 |