CN203141814U - Double-screw volume-replacing tensile-deformation plasticization processing equipment - Google Patents
Double-screw volume-replacing tensile-deformation plasticization processing equipment Download PDFInfo
- Publication number
- CN203141814U CN203141814U CN2013201003756U CN201320100375U CN203141814U CN 203141814 U CN203141814 U CN 203141814U CN 2013201003756 U CN2013201003756 U CN 2013201003756U CN 201320100375 U CN201320100375 U CN 201320100375U CN 203141814 U CN203141814 U CN 203141814U
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- Prior art keywords
- screw
- screw rod
- circumference
- twin
- circumference block
- 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.)
- Withdrawn - After Issue
Links
- 238000002347 injection Methods 0.000 claims abstract description 38
- 239000007924 injection Substances 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims description 23
- 238000011068 load Methods 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 36
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 abstract description 6
- 239000002861 polymer material Substances 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 abstract description 3
- 229910003460 diamond Inorganic materials 0.000 abstract 3
- 239000010432 diamond Substances 0.000 abstract 3
- 238000005056 compaction Methods 0.000 abstract 1
- 238000010297 mechanical methods and process Methods 0.000 abstract 1
- 101700078171 KNTC1 Proteins 0.000 description 16
- 230000032258 transport Effects 0.000 description 12
- 238000002844 melting Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000000974 shear rheometry Methods 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/56—Screws having grooves or cavities other than the thread or the channel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model discloses double-screw volume-replacing tensile-deformation plasticization processing equipment. According to the equipment, circumference stop blocks are additionally arranged in screw grooves of a first screw and a second screw; circumference stop block meshing grooves are formed in screw ridges of the first screw and the second screw; and the circumference stop blocks in the screw grooves of the first screw or the second screw are meshed with the circumference stop block meshing grooves in the screw ridges of the first screw or the second screw. When the two screws rotate, volumes of curved-surface diamond spaces respectively formed by two circumference stop blocks in the screw grooves of one screw and the inner surface of a charging barrel are replaced by volumes of curved-surface diamond entities between two circumference stop block meshing grooves in the screw ridges of the other screw, so that the compaction and the plasticization of materials are realized and the materials are discharged from gaps in tops of lower parts of the curved-surface diamond spaces. The equipment disclosed by the utility model is capable of realizing extrusion processing of high polymer materials or realizing injection processing through being combined with a plunger injection unit and has the characteristics of good material mixing plasticization effect, short thermal mechanical process, low energy consumption, wide adaptability and the like and convenient to disassemble and assemble.
Description
Technical field
The utility model relates to the high polymer material plasticizing process equipment, specifically refers to the volume displaced tensile deformation plasticizing of twin-screw process equipment.
Technical background
It is a kind of important method in the processing of high molecular material process that twin-screw is extruded processing, extrude processing with respect to single screw rod, double screw extruder feeding characteristic is good, and has better mixing, exhaust, reaction and self-cleaning function, is applicable to plastics and the blend composition of processing heat stability difference.When the mass transport that twin-screw is extruded processing mainly still depends on and rotates by screw rod to the effect of dragging of material, this course of conveying is arranged by shear stress, and processing ubiquity material plasticizing transports that the hot mechanical course that experiences is long, the plasticizing melting effect is poor so current macromolecular material twin-screw is extruded, energy consumption height, device structure are big, to defectives such as the material characteristic dependence are strong.Set up kneading member at some position of screw rod and make the local flow field rheology control that is stretched though extrude at twin-screw in the process such as blend in order to improve mixing, melting effect, the plasticizing transport process that the variation of this local flow field does not change material in double screw extruder or the various multi-screw extruder is subjected to the mechanism of shear rheology domination.Particularly extruder screw rotating speed high speed trend is realizing high yield, high efficiency while in recent years, has also brought a series of problems: it is uneven that time of staying minimizing in screw rod can cause the mixing plasticizing of material as material; The excessive shear that stands material may cause the hurried intensification of material and thermal decomposition; Extrude stability control difficulty and can cause problems such as extrudate physical dimension fluctuation.
The utility model content
The purpose of this utility model is to provide the volume displaced tensile deformation plasticizing of a kind of twin-screw process equipment, and mixing plasticizing hot mechanical course uneven, the material experience is long in the macromolecular material molding process, energy consumption is high, the easy thermal decomposition problem of material to solve.
The utility model purpose is achieved through the following technical solutions:
The volume displaced tensile deformation plasticizing of twin-screw process equipment, comprise first screw rod, second screw rod, described first screw rod and second screw rod are positioned at barrel, be connected with drive unit respectively, in the screw channel of first screw rod and second screw rod, all set up the circumference block, the circumference block is circular, and the height of circumference block is identical with the height of spiral shell rib; All offer circumference block engaging groove on the spiral shell rib of first screw rod and second screw rod, circumference block engaging groove is the circumferential groove shape, and the degree of depth of circumference block engaging groove is identical with the degree of depth of screw channel; Circumference block engaging groove is divided into first surface rhombus entity and the second curved surface rhombus entity with the spiral shell rib on the spiral shell rib; Adjacent two circumference blocks and first surface rhombus entity and the second curved surface rhombus entity form curved surface rhombus space; All there are breach in circumference block and first surface rhombus entity and the second curved surface rhombus entity end face; First screw rod or second screw rod are Heterodromy double-screw, the circumference block engaging groove engagement on the circumference block on first screw rod or second screw rod in the screw channel and second screw rod or first screw rod on the spiral shell rib.
Further, the width of described breach is greater than 0 pitch less than 1/2 first screw rod or second screw rod.Further, the width of described breach is the pitch of 1/5-1/2 first screw rod or second screw rod.
Further, described first screw rod and second screw rod are positioned at barrel, are provided with hopper at an end of barrel, and the other end is provided with die head.Further, described equipment also comprises loading head and injection barrel; The charging end face of loading head is fixedlyed connected with the discharging end face on the die head, and the discharging end face of loading head is fixedlyed connected with the charging end face of injection barrel; Injection barrel front end is provided with nozzle, and the rear end is provided with injection cylinder; Injection ram is arranged in the injection cylinder, and stretches in the cavity of injection barrel, and the cavity of injection barrel also is communicated with runner and the nozzle of loading head respectively, and the runner of loading head also is communicated with outlet on the die head.
The utility model has adopted based on twin-screw draft flowing deformation plasticizing transportation method, the hot mechanical course that solves mixing plasticizing inequality, material experience in the macromolecular material molding process is long, energy consumption is high, the easy thermal decomposition problem of material, compare with traditional processing of high molecular material technology, have the following advantages:
1, material volume displaced in the rhombus space, can realize the plasticizing transport process of material under the tensile deformation dominating role, with respect to the screw rod towing plasticizing course of conveying of traditional shear rheology domination, to finish the hot mechanical course that the plasticizing transport process experiences and shorten greatly, plasticizing transports energy consumption and reduces;
2, material has continuous passage in the twin-screw course of conveying, and with respect to the discontinuous conveying of traditional double screw rod material in course of conveying, the stability of extruding improves greatly;
3, strengthened the high polymer material plasticizing melting effect, material adaptability has been improved;
4, dismounting is simple and easy, and is easy to utilize.
Description of drawings
Fig. 1 is the structural representation of the volume displaced tensile deformation plasticizing of twin-screw process equipment;
Fig. 2 is Fig. 1 mean camber rhombus entity and curved surface rhombus space development figure;
Fig. 3 is the structural representation of the volume displaced tensile deformation plasticizing of twin-screw extrusion equipment;
Fig. 4 is the structural representation of the volume displaced tensile deformation plasticizing of twin-screw injection device.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further, but the claimed scope of the utility model is not limited to the scope of embodiment statement.
Embodiment 1
As shown in Figure 1, 2, the volume displaced tensile deformation plasticizing of a kind of twin-screw process equipment comprises that first screw rod 1, second screw rod, 2, the first screw rods 1 or second screw rod 2 are Heterodromy double-screw, is arranged in the charging basket, is connected with drive unit respectively; All set up circumference block 7 in the screw channel 4 of first screw rod 1 and second screw rod 2, circumference block 7 is circular, and the height of circumference block 7 is identical with the height of spiral shell rib 3; All offer circumference block engaging groove 9 on the spiral shell rib 3 of first screw rod 1 and second screw rod 2, circumference block engaging groove 9 is the circumferential groove shape, and the degree of depth of circumference block engaging groove 9 is identical with the degree of depth of screw channel 4; Circumference block engaging groove 9 is divided into first surface rhombus entity 5 and the second curved surface rhombus entity 8 with spiral shell rib 3 on spiral shell rib 3; Adjacent two circumference blocks 7 form curved surface rhombus space 6 with first surface rhombus entity 5 end faces and the second curved surface rhombus entity, 8 end faces; All there is breach 10 in circumference block 7 with first surface rhombus entity 5 and the second curved surface rhombus entity, 8 end faces, and breach 10 width are greater than 0 less than 1/2 pitch, and the width of breach is preferably the pitch pitch of 1/5-1/2 first screw rod or second screw rod.Screw channel 4 on spiral shell rib 3 on first screw rod 1 or second screw rod 2 and second screw rod 2 or first screw rod 1 meshes fully; Circumference block engaging groove 9 on circumference block 7 on first screw rod 1 or second screw rod 2 in the screw channel 4 and second screw rod 2 or first screw rod 1 on the spiral shell rib 3 meshes fully.
The volume displaced tensile deformation plasticizing of a kind of twin-screw processing method, when first screw rod 1 and the 2 engagement rotations of second screw rod, the material of region of engagement is forced to be fed forward, and enters the volume displaced plasticizing of twin-screw volume tensile deformation delivery area.Fig. 2 is twin-screw volume of material displacement zone expanded view, with reference to figure 1, Fig. 2, the breach 10 of material between the second curved surface rhombus entity 8 and circumference block 7 enters by two circumference blocks 7 and first surface rhombus entity 5 end faces and the second curved surface rhombus entity, 8 end faces and forms the curved surface rhombus space 6, in another under extruding of first surface rhombus entity 5 of engagement second screw rod 2, discharge from the breach 10 at 6 tops, curved surface rhombus space, and enter next curved surface rhombus space 6 and carry out continuous plastication and extrude, realize that volume displaced plasticizing transports.Because repeatedly the displacement of rhombus spatial volume can realize that the material plasticizing under the tensile deformation dominating role transports, and realize that volume displaced breach 10 is as the continuous passage of plasticizing course of conveying, the stability of material at the continuous plastication course of conveying will be guaranteed, with respect to the discontinuous conveying of traditional double screw rod material in course of conveying, the stability of extruding improves greatly; Material is volume displaced the rhombus space, can realize the plasticizing transport process of material under the tensile deformation dominating role, with respect to the screw rod towing plasticizing course of conveying of traditional shear rheology domination, to finish the hot mechanical course that the plasticizing transport process experiences and shorten greatly, plasticizing transports energy consumption and reduces; Therefore the volume displaced tensile deformation plasticizing of twin-screw processing method can realize that finally hot mechanical course is short, energy consumption reduces, extrude stable high polymer material plasticizing transport process.This method has been strengthened the high polymer material plasticizing melting effect, and material adaptability is improved; Device structure of the present utility model is simple relatively, and dismounting is simple and easy, and is easy to utilize.
Embodiment 2
With reference to figure 3, the volume displaced tensile deformation plasticizing of twin-screw extrusion equipment, mainly formed by first screw rod 1, second screw rod 2, hopper 12, barrel 13, die head 14 and drive unit, wherein first screw rod 1, second screw rod 2 are identical with twin-screw among Fig. 1,2, be positioned at barrel 13, be connected with drive unit respectively; All set up circumference block 7 in the screw channel 4 of first screw rod 1 and second screw rod 2, circumference block 7 is circular, and the height of circumference block 7 is identical with the height of spiral shell rib 3; All offer circumference block engaging groove 9 on the spiral shell rib 3 of first screw rod 1 and second screw rod 2, circumference block engaging groove 9 is the circumferential groove shape, and the degree of depth of circumference block engaging groove 9 is identical with the degree of depth of screw channel 4; End at barrel 13 is provided with hopper 12, and the other end is provided with die head 14; Material enters twin-screw volume tensile deformation plasticization unit from hopper 12, and through continuous volume displaced plasticizing, the die head 14 on the last barrel through being connected the screw rod squeeze unit 13 again enters that mould is extruded, cooled off, finalizing the design obtains goods.
Embodiment 3
With reference to figure 4, the volume displaced tensile deformation plasticizing of twin-screw injection device mainly is made up of twin-screw volume tensile deformation plasticizing conveying equipment I, plunger injection unit II and loading head 15; Wherein, plunger injection unit II mainly is made up of injection cylinder 16, injection ram 17, injection barrel 18, nozzle 19 etc.Discharging end face on the die head 14 of the charging end face of loading head 15 and twin-screw volume tensile deformation plasticizing conveying equipment I is fixedlyed connected, and the discharging end face of loading head 15 is fixedlyed connected with the charging end face of the injection barrel 18 of plunger injection unit II; Injection barrel 18 front ends are provided with nozzle 19, and the rear end is provided with injection cylinder 16; Injection ram 17 is arranged in the injection cylinder 16, and stretches in the cavity of injection barrel 18, and the cavity of injection barrel 18 also is communicated with runner and the nozzle 19 of loading head 15 respectively, and the runner of loading head 15 also is communicated with outlet on the die head 14.With reference to figure 1,2,3, twin-screw volume tensile deformation plasticizing conveying equipment I mainly is made up of first screw rod 1, second screw rod 2, hopper 12, barrel 13 and die head 14, and wherein first screw rod 1 and second screw rod 2 are positioned at barrel 13, are connected with drive unit respectively; End at barrel 13 is provided with hopper 12, and the other end is provided with die head 14; All set up circumference block 7 in the screw channel 4 of first screw rod 1 and second screw rod 2, circumference block 7 is circular, and the height of circumference block 7 is identical with the height of spiral shell rib 3; All offer circumference block engaging groove 9 on the spiral shell rib 3 of first screw rod 1 and second screw rod 2, circumference block engaging groove 9 is the circumferential groove shape, and the degree of depth of circumference block engaging groove 9 is identical with the degree of depth of screw channel 4.Material enters twin-screw volume tensile deformation plasticization unit from hopper 12, the melt that is plastified by twin-screw volume tensile deformation plasticizing conveying equipment I enters in the injection barrel 18 of plunger injection unit II through loading head 15, injection ram 17 at the pressure lower plunger injecting unit II of melt retreats, twin-screw volume tensile deformation plasticizing conveying equipment I stops plasticizing when storing amount in the injection barrel 18 of plunger injection unit II reaches the variable of injected articles requirement, and the plasticizing measurement process of injector finishes.After machine to be injected was finished mold filling, pressurize operation, I began plasticizing at goods cooling stage twin-screw volume tensile deformation plasticizing conveying equipment, and injector begins the new one-period of product molding.
Claims (5)
1. the volume displaced tensile deformation of twin-screw plastifies process equipment, it is characterized in that: comprise first screw rod, second screw rod, described first screw rod and second screw rod are positioned at barrel, be connected with drive unit respectively, in the screw channel of first screw rod and second screw rod, all set up the circumference block, the circumference block is circular, and the height of circumference block is identical with the height of spiral shell rib; All offer circumference block engaging groove on the spiral shell rib of first screw rod and second screw rod, circumference block engaging groove is the circumferential groove shape, and the degree of depth of circumference block engaging groove is identical with the degree of depth of screw channel; Circumference block engaging groove is divided into first surface rhombus entity and the second curved surface rhombus entity with the spiral shell rib on the spiral shell rib; Adjacent two circumference blocks and first surface rhombus entity and the second curved surface rhombus entity form curved surface rhombus space; All there are breach in circumference block and first surface rhombus entity and the second curved surface rhombus entity end face; First screw rod or second screw rod are Heterodromy double-screw, the circumference block engaging groove engagement on the circumference block on first screw rod or second screw rod in the screw channel and second screw rod or first screw rod on the spiral shell rib.
2. the volume displaced tensile deformation of twin-screw according to claim 1 plastifies process equipment, and it is characterized in that: the width of described breach is greater than 0 pitch less than 1/2 first screw rod or second screw rod.
3. the volume displaced tensile deformation of twin-screw according to claim 2 plastifies process equipment, and it is characterized in that: the width of described breach is the pitch of 1/5-1/2 first screw rod or second screw rod.
4. the volume displaced tensile deformation of twin-screw according to claim 1 plastifies process equipment, and it is characterized in that: the end at barrel is provided with hopper, and the other end is provided with die head.
5. the volume displaced tensile deformation of twin-screw according to claim 4 plastifies process equipment, it is characterized in that: described equipment also comprises loading head and injection barrel; The charging end face of loading head is fixedlyed connected with the discharging end face on the die head, and the discharging end face of loading head is fixedlyed connected with the charging end face of injection barrel; Injection barrel front end is provided with nozzle, and the rear end is provided with injection cylinder; Injection ram is arranged in the injection cylinder, and stretches in the cavity of injection barrel, and the cavity of injection barrel also is communicated with runner and the nozzle of loading head respectively, and the runner of loading head also is communicated with outlet on the die head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201003756U CN203141814U (en) | 2013-03-05 | 2013-03-05 | Double-screw volume-replacing tensile-deformation plasticization processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201003756U CN203141814U (en) | 2013-03-05 | 2013-03-05 | Double-screw volume-replacing tensile-deformation plasticization processing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203141814U true CN203141814U (en) | 2013-08-21 |
Family
ID=48969367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201003756U Withdrawn - After Issue CN203141814U (en) | 2013-03-05 | 2013-03-05 | Double-screw volume-replacing tensile-deformation plasticization processing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203141814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182775A (en) * | 2013-03-05 | 2013-07-03 | 华南理工大学 | Method and equipment for double-screw size replacement dragging deformation plasticization machining |
-
2013
- 2013-03-05 CN CN2013201003756U patent/CN203141814U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182775A (en) * | 2013-03-05 | 2013-07-03 | 华南理工大学 | Method and equipment for double-screw size replacement dragging deformation plasticization machining |
| CN103182775B (en) * | 2013-03-05 | 2015-12-02 | 华南理工大学 | The volume displaced tensile deformation plasticizing processing method of a kind of twin-screw and equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130821 Effective date of abandoning: 20151202 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130821 Effective date of abandoning: 20151202 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |