CN109573384A - Gear driven type refuse bag side closing device - Google Patents
Gear driven type refuse bag side closing device Download PDFInfo
- Publication number
- CN109573384A CN109573384A CN201811643015.4A CN201811643015A CN109573384A CN 109573384 A CN109573384 A CN 109573384A CN 201811643015 A CN201811643015 A CN 201811643015A CN 109573384 A CN109573384 A CN 109573384A
- Authority
- CN
- China
- Prior art keywords
- gear
- refuse bag
- screw rod
- port
- pressing plate
- 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- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F1/00—Refuse receptacles; Accessories therefor
- B65F1/0006—Flexible refuse receptables, e.g. bags, sacks
- B65F1/002—Flexible refuse receptables, e.g. bags, sacks with means for opening or closing of the receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F1/00—Refuse receptacles; Accessories therefor
- B65F1/04—Refuse receptacles; Accessories therefor with removable inserts
- B65F1/06—Refuse receptacles; Accessories therefor with removable inserts with flexible inserts, e.g. bags or sacks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of gear driven type refuse bag side closing device, including driving mechanism, collapse clamp system, hot-melting mechanism, the gathering clamp system includes left and right screw rod, pressing plate, left and right compression bar, front and back push rod, rack gear mobile bar, the two sides of garbage throw-in port are arranged in left and right screw rod, and pressing plate is arranged on the screw rod of left and right；The left and right sides of garbage throw-in port is arranged in rack gear mobile bar, the left and right sides of garbage throw-in port is arranged in by intermeshing driving gear and driven gear for front and back push rod, the other end is slidably arranged on the compression bar of left and right, the straight-tooth slot engagement in driving tooth wheel and rack mobile bar；Screw rod band dynamic pressure plate, pressing plate drive left and right compression bar to push refuse bag gathering and compress by front and back push rod when work or so.Compress that reliable and stable, seal quality is good, speed is fast using after this structure, having many advantages, such as that simple and reasonable, refuse bag collapses.
Description
Technical field
The invention is related to a kind of intelligent garbage bin, and especially a kind of intelligent garbage bin drawing and pulling type refuse bag that is suitable for seals
The gear driven type refuse bag side closing device of mouth.
Background technique
With economic fast development, the continuous improvement of living standard, people have higher and higher requirements for health, dustbin
Also it is continuously improved.The opened type dustbin of early application, advantage are that structure is simple, easy to use, production cost is low, but
Have the following problems in use process: rubbish is naked directly to be exposed to the open air in the sight of people, is most unseemly, rubbish is different in bucket
Taste comes out from dispensing port, still can cause secondary pollution to ambient enviroment.The cap-overturning dustbin that later period uses, using foot
It steps on footboard drives push rod and drives bung Unclosing structure, which can open or close under artificial control, using not also being
Easily, since refuse bag is unable to self-closed, rubbish is not only seen when exchanging refuse bag, but also can smell the different of rubbish sending
Taste, especially summer waste odor stench are unpleasant.The intelligent garbage bin used now is general to be opened automatically by sensing device realization
The function of lid, do not have with dustbin and rubbish when garbage throwing it is any contact, other advantage and disadvantage and the basic phase of cap-overturning dustbin
Together.Although plastic garbage bag can be used in above-mentioned three categories dustbin makes rubbish obtain clearing up without staying dirt, but due to rubbish
Bag is unable to automatic packaging, not only sees rubbish when exchanging refuse bag, but also can smell the peculiar smell of rubbish sending, especially summer rubbish
Rubbish peculiar smell stench is unpleasant, is further improved.
To solve the above-mentioned problems, Chinese invention patent application publication No. CN108584238A discloses a kind of refuse bag and beats
Turn-up mechanism and intelligent garbage bin, the first compression bar and the second compression bar respectively can be collapsed refuse bag to the by driving device driving
The delivery position of one fixed edge and the second fixed edge carries out the refuse bag collapsed to delivery position by thermofusion device heat-sealable
Mouthful, thus solve existing intelligent garbage bin without automatic packaging mechanism or can only semi-automatic packing garbage bag and refuse bag be packaged envelope
Mouth leakproofness is not strong, seals unstable problem；But have the following problems in use: first is that due to the first compression bar and
Two compression bars, which intersect, to be arranged in the first fixed link and the second fixed link, the first compression bar and the second compression bar when mobile it is single-ended by
Power, stability is poor, can be deformed when the rubbish of especially refuse bag is heavier, refuse bag is caused not press tightly, and occurs when sealing molten
Constantly, the phenomenon that blow-by.Second is that one jiao due to refuse bag gathering to delivery position is sealed, cause to pull out when sealing
Length it is inconsistent, lead to the biggish pulling force of diagonal angle refuse bag stress of delivery position, or even pull open refuse bag, while also depositing
Drawing motionless problem.Third is that need the substep driving of two motors that could complete when refuse bag collapses, sealing time length, low efficiency,
High production cost is further improved.For this purpose, many manufacturers and knowledgeable people develop and develop, but so far still
There is not comparatively ideal product to emerge.
Summary of the invention
To overcome drawbacks described above of the existing technology, the purpose of the invention be to provide it is a kind of it is simple and reasonable,
Stress is steady reliably, seal quality is good, speed is fast, a motor can be completed to collapse the gear driven type refuse bag for clamping sealing
Side closing device.
The invention solves technical solution used by above-mentioned technical problem, it includes driving mechanism, collapses clamping machine
Structure, hot-melting mechanism, the hot-melting mechanism are fixed on gathering clamp system packet intermediate, described on front side of the garbage throw-in port of bung
Left and right screw rod, pressing plate, left and right compression bar, front and back push rod, rack gear mobile bar are included, rubbish throwing can be arranged in left and right screw rod with rotating synchronously
The two sides of mouth are put, the both ends of pressing plate are arranged on the screw rod of left and right by being threadedly engaged；Front and back sliding slot is correspondingly provided on the compression bar of left and right,
The left and right sides of garbage throw-in port is arranged in rack gear mobile bar in which can slide back and forth, and one end of front and back push rod, which is correspondingly provided with, mutually nibbles
The driving gear and driven gear of conjunction and the left and right sides that garbage throw-in port is arranged in, the other end of front and back push rod are slideably right
It should be arranged on the front and back sliding slot of left and right compression bar, the straight-tooth slot engagement in driving tooth wheel and rack mobile bar；It is pressed when original state
Plate is located at the rear side of garbage throw-in port, and band dynamic pressure plate is moved forward and backward when left and right screw rod rotates, and left and right is driven when pressing plate is moved forward and backward
Rack gear mobile bar is moved forward and backward, engaged with driving gear when rack gear mobile bar is moved forward and backward by straight-tooth slot, driving gear and from
Moving gear engagement drives front and back push rod rotation, again corresponding after the rotation of front and back push rod to push left and right compression bar mobile to centre or reset.
The further scheme of the invention, the garbage throw-in port front and back are correspondingly provided with front and back press strip on side, and front and back is pressed
The guide chute matched with left and right compression bar both ends is correspondingly provided on item.
The both ends of the rack gear mobile bar are correspondingly provided with front and back baffle, are correspondingly provided on pressing plate and match with front and back baffle
Pushing block.
The further scheme of the invention, the driving mechanism include the driving motor being fixed on bung, and
The gear drive being correspondingly connected on driving motor and right screw rod.
The further scheme of the invention is connected with belt gear, belt transmission between the left and right screw rod
Mechanism includes the corresponding synchronizing wheel being fixed on the screw rod of left and right and the synchronous belt being connected between two synchronizing wheels.
The further scheme of the invention, the hot-melting mechanism include the envelope for heating seat and being fixed on hot melt seat
Mouthful heating element is correspondingly provided with the sealing press strip matched with sealing electric hot element on pressing plate.
The further scheme of the invention, the refuse bag annular that the bung is equipped with placement drawing and pulling type refuse bag are deposited
Slot is put, refuse bag protrudes into dustbin from garbage throw-in port.
After adopting the above structure, it has the following advantages compared with prior art and effect: first is that when due to refuse bag sealing, it is left
Right screw rod band dynamic pressure plate pushes the movement of refuse bag hot melt mechanism, corresponds to after the mobile certain stroke of pressing plate further through the pushing block of two sides
The preceding baffle of the left and right sides is driven, the preceding baffle of two sides drives rack gear mobile bar to move forward, the straight-tooth slot in rack gear mobile bar
By engagement drive driving gear rotation, driving gear further through engagement drive driven gear rotate synchronously, driving gear and from
Moving gear drives front and back push rod to push left and right compression bar that refuse bag hot melt seat is pushed to collapse respectively again and compresses, and stress is steadily reliable,
To solve the problems, such as the molten continuous, blow-by of refuse bag.Second is that refuse bag is drawn when due to sealing among garbage throw-in port side
Length out is relatively uniform, to solve the problems, such as to pull open refuse bag and draw motionless.Third is that rubbish can be completed in a motor
Bag collapses and compresses sealing, and structure is simple, and reliable and stable, sealing time is short, speed is fast, and production cost is low.
Detailed description of the invention
Schematic perspective view when Fig. 1 is the invention original state.
Fig. 2 is that the invention pressing plate and left and right compression bar collapse the stereochemical structure signal compressed when refuse bag is sealed
Figure.
Fig. 3 is the overlooking structure diagram of the invention Fig. 2.
Fig. 4 is the decomposition texture schematic diagram of the invention.
Wherein 1 bung, 2 driving motors, 3 gear drives, 4 right screw rods, 5 right compression bars, 6 hot melt seats, 7 sealing electric hots
Element, 8 press strips, 9 left screw rods, baffle before 10, sliding slot before 11, push rod before 12,13 left compression bars, 14 rack gear mobile bars, 15 rear push-rods,
Sliding slot after 16,17 pushing blocks, baffle after 18,19 pressing plates, 20 synchronous belts, 21 synchronizing wheels, 22 refuse bag annular storage grooves, 23 rubbish are thrown
Put mouth, 24 straight-tooth slots, 25 driving gears, 26 driven gears, 27 sealing press strips.
Specific embodiment
It is a kind of specific embodiment party of gear driven type refuse bag of the invention side closing device shown in Fig. 1 to Fig. 4
Case is mounted on bung 1 and is located at 23 lower section of garbage throw-in port of bung 1, and the bung 1, which is equipped with, places drawing and pulling type rubbish
The refuse bag annular storage groove 22 of bag, refuse bag protrudes into dustbin from garbage throw-in port 23.Closing device include driving mechanism,
Clamp system, hot-melting mechanism are collapsed, the hot-melting mechanism is fixed among the front side of garbage throw-in port 23, the gathering folder
Tight mechanism includes left and right screw rod 9,4, pressing plate 19, left and right compression bar 13,5, front and back push rod 12,15, rack gear mobile bar 14, left and right screw rod
9, the both ends of 4 can be arranged in garbage throw-in port 23 two sides with rotating synchronously, pressing plate 19 are arranged by being threadedly engaged in left and right spiral shell
On bar 9,4；Front and back sliding slot 11,16 is correspondingly provided on left and right compression bar 13,5, rubbish is arranged in can slide back and forth in rack gear mobile bar 14
The left and right sides of rubbish dispensing port 23, one end of front and back push rod 12,15 are correspondingly provided with intermeshing driving gear 25 and driven tooth
Wheel 26 and the left and right sides that garbage throw-in port 23 is arranged in, the other end of front and back push rod 12,15 are slideably correspondingly arranged at a left side
On the front and back sliding slot 11,16 of right compression bar 13,5, driving gear 25 is engaged with the straight-tooth slot 24 in rack gear mobile bar 14, the rack gear
The both ends of mobile bar 14 are correspondingly provided with front and back baffle 10,18, are correspondingly provided on pressing plate 19 and push away with what front and back baffle 10,18 matched
Block 17；Pressing plate 19 is located at the rear side of garbage throw-in port 23 when original state, moves before and after band dynamic pressure plate 19 when left and right screw rod 9,4 rotates
It is dynamic, drive left and right rack gear mobile bar 14 to be moved forward and backward when pressing plate 19 is moved forward and backward, by straight when rack gear mobile bar 14 is moved forward and backward
Tooth socket 24 is engaged with driving gear 25, driving gear 25 engages drive front and back push rod 12,15 with driven gear 26 and rotates, and front and back pushes away
Bar 12,15 is again corresponding after rotating to be pushed left and right compression bar 13,5 mobile to centre or resets.
In order to guarantee that left and right compression bar 13,5 is steadily mobile, front and back press strip is correspondingly provided on the 23 front and back side of garbage throw-in port
8, the guide chute matched with left and right compression bar 13,5 both ends is correspondingly provided on front and back press strip 8.
In order to realize that power transmits, the driving mechanism includes the driving motor 2 being fixed on bung 1, and corresponding
The gear drive 3 being connected on driving motor 2 and right screw rod 4.Belt transmission is connected between the left and right screw rod 9,4
Mechanism, belt gear include the corresponding synchronizing wheel 21 being fixed on left and right screw rod 9,4 and are connected to two synchronizing wheels 21
Between synchronous belt 20.
In order to guarantee that refuse bag sealing is reliable, the hot-melting mechanism includes hot melt seat 6 and is fixed on hot melt seat 6
Sealing electric hot element 7 is correspondingly provided with the sealing press strip 27 matched with sealing electric hot element 7 on pressing plate 19.
The invention course of work is as follows: when needing to carry out refuse bag sealing, driving motor 2 passes through gear drive machine
Structure 3 drives right screw rod 4 to rotate in the forward direction, and right screw rod 4 drives the synchronous rotation of left screw rod 9 further through synchronizing wheel 21 and the cooperation of synchronous belt 20
Turn；Pressing plate 19 pushes 6 direction of refuse bag hot melt seat mobile in the case where the rotation of left and right screw rod 9,4 drives.When pressing plate 19 is mobile certain
Stroke after two sides the corresponding preceding baffle 10 for driving the left and right sides of pushing block 17 it is mobile, the preceding baffle 10 of two sides is mobile with carry-over bar
Straight-tooth slot 24 on bar 14 is mobile, and straight-tooth slot 24 drives driving gear 25 to rotate, and driving gear drives driven tooth further through engagement
Wheel 26 rotates synchronously, so that rotating the rear push-rod 15 on the preceding push rod 12 and driven gear 26 of driving gear 25 pushes left and right pressure
Bar 13,5 pushes refuse bag hot melt seat 6 to collapse.When pressing plate 19 and left and right compression bar 13,5, which collapse, compresses refuse bag, pass through sealing
Heating element 7 and sealing press strip 27 fusing refuse bag simultaneously carry out welding sealing to refuse bag up and down.
After completing refuse bag sealing, driving motor 2 drives left and right spiral shell by gear drive 3 and belt gear
Bar 9,4 reversely rotates, the mobile reset of 6 opposite direction of hot melt seat in the case where left and right screw rod 9,4 is reversely rotated and driven of pressing plate 19.Work as pressure
The corresponding rear baffle 18 for driving the left and right sides of pushing block 17 of two sides is mobile after the mobile certain stroke of plate 19, the rear baffle 18 of two sides
Mobile with the straight-tooth slot 24 in carry-over bar mobile bar 14, straight-tooth slot 24 with driving gear 25 and the cooperation of driven gear 26 by making to lead
The rotation of rear push-rod 15 on the preceding push rod 12 and driven gear 26 of moving gear 25 drives left and right compression bar 13,5 to reset, and presses at the same time
Plate 19 also resets simultaneously, gets ready for next refuse bag sealing.
The above, only the specific embodiment of the invention, not makes in any form the invention
Limitation, on the basis of not departing from the technical solution of the invention, made simple modification, equivalent variations or modification are fallen
Enter the protection scope of the invention.
Claims (7)
1. a kind of gear driven type refuse bag side closing device, including driving mechanism, gathering clamp system, hot-melting mechanism,
Be characterized in: the hot-melting mechanism is fixed on gathering clamp system intermediate, described on front side of the garbage throw-in port (23) of bung (1)
Including left and right screw rod (9,4), pressing plate (19), left and right compression bar (13,5), front and back push rod (12,15), rack gear mobile bar (14), left and right
The two sides of garbage throw-in port (23) can be arranged in screw rod (9,4) with rotating synchronously, and the both ends of pressing plate (19) are set by being threadedly engaged
It sets on left and right screw rod (9,4)；Front and back sliding slot (11,16) are correspondingly provided on left and right compression bar (13,5), rack gear mobile bar (14) can
The left and right sides of garbage throw-in port (23) is set slidingly back and forth, and one end of front and back push rod (12,15), which is correspondingly provided with, mutually nibbles
The driving gear (25) and driven gear (26) of conjunction are simultaneously arranged in the left and right sides of garbage throw-in port (23), front and back push rod (12,
15) the other end is slideably correspondingly arranged on the front and back sliding slot (11,16) of left and right compression bar (13,5), driving gear (25) with
Straight-tooth slot (24) engagement in rack gear mobile bar (14)；Pressing plate (19) is located at the rear side of garbage throw-in port (23) when original state,
Band dynamic pressure plate (19) is moved forward and backward when left and right screw rod (9,4) rotates；Rack gear mobile bar in left and right is driven when pressing plate (19) is moved forward and backward
(14) it is moved forward and backward, is engaged by straight-tooth slot (24) with driving gear (25) when rack gear mobile bar (14) is moved forward and backward, driving tooth
Wheel (25) engages drive front and back push rod (12,15) with driven gear (26) and rotates, and correspondence pushes away again after front and back push rod (12,15) rotation
Dynamic left and right compression bar (13,5) are mobile to centre or reset.
2. gear driven type refuse bag side closing device according to claim 1, it is characterized in that: the garbage throw-in port
(23) it is correspondingly provided with front and back press strip (8) on the side of front and back, is correspondingly provided on front and back press strip (8) and matches with left and right compression bar (13,5) both ends
The guide chute of conjunction.
3. gear driven type refuse bag side closing device according to claim 1, it is characterized in that: the rack gear mobile bar
(14) both ends are correspondingly provided with front and back baffle (10,18), are correspondingly provided on pressing plate (19) and are matched with front and back baffle (10,18)
Pushing block (17).
4. according to claim 1 or 2 or 3 gear driven type refuse bag side closing devices, it is characterized in that: the driving
Mechanism includes the driving motor (2) being fixed on bung (1), and is correspondingly connected on driving motor (2) and right screw rod (4)
Gear drive (3).
5. gear driven type refuse bag side closing device according to claim 4, it is characterized in that: the left and right screw rod
Belt gear is connected between (9,4), belt gear includes the corresponding synchronizing wheel being fixed on left and right screw rod (9,4)
(21) and the synchronous belt (20) that is connected between two synchronizing wheels (21).
6. gear driven type refuse bag side closing device according to claim 5, it is characterized in that: the hot-melting mechanism packet
It includes hot melt seat (6) and is fixed on the sealing electric hot element (7) heated on seat (6), be correspondingly provided on pressing plate (19) and sealing electricity
The sealing press strip (27) that thermal element (7) matches.
7. gear driven type refuse bag side closing device according to claim 6, it is characterized in that: on the bung (1)
Equipped with the refuse bag annular storage groove (22) for placing drawing and pulling type refuse bag, refuse bag protrudes into dustbin from garbage throw-in port (23)
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811643015.4A CN109573384A (en) | 2018-12-29 | 2018-12-29 | Gear driven type refuse bag side closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811643015.4A CN109573384A (en) | 2018-12-29 | 2018-12-29 | Gear driven type refuse bag side closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109573384A true CN109573384A (en) | 2019-04-05 |
Family
ID=65932751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811643015.4A Withdrawn CN109573384A (en) | 2018-12-29 | 2018-12-29 | Gear driven type refuse bag side closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109573384A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109878938A (en) * | 2019-04-19 | 2019-06-14 | 佛山郝斯考科技有限公司 | A kind of intelligent garbage bin |
| CN110143382A (en) * | 2019-05-30 | 2019-08-20 | 广东威林科技股份有限公司 | A kind of intelligent garbage bin for moving bag certainly |
| CN110949739A (en) * | 2019-10-24 | 2020-04-03 | 东莞市邦泽电子有限公司 | Paper shredder capable of automatically compressing paper scrap and paper scrap compressing method of paper shredder |
| CN111891736A (en) * | 2020-06-22 | 2020-11-06 | 吴朋谦 | Manipulator of garbage packaging machine and use method of manipulator |
| CN112570431A (en) * | 2021-01-05 | 2021-03-30 | 石家庄震贸科技有限公司 | Garbage crushing device capable of automatically packaging and conveying |
| CN112678379A (en) * | 2021-01-29 | 2021-04-20 | 吴冰冰 | Shell self-cleaning type garbage can based on environmental protection |
| CN114275400A (en) * | 2021-12-31 | 2022-04-05 | 上海拓牛智能科技有限公司 | Garbage bag packaging method |
-
2018
- 2018-12-29 CN CN201811643015.4A patent/CN109573384A/en not_active Withdrawn
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109878938A (en) * | 2019-04-19 | 2019-06-14 | 佛山郝斯考科技有限公司 | A kind of intelligent garbage bin |
| CN110143382A (en) * | 2019-05-30 | 2019-08-20 | 广东威林科技股份有限公司 | A kind of intelligent garbage bin for moving bag certainly |
| CN110143382B (en) * | 2019-05-30 | 2024-06-04 | 广东威林科技股份有限公司 | Automatic intelligent garbage bin of changing bags |
| CN110949739A (en) * | 2019-10-24 | 2020-04-03 | 东莞市邦泽电子有限公司 | Paper shredder capable of automatically compressing paper scrap and paper scrap compressing method of paper shredder |
| CN110949739B (en) * | 2019-10-24 | 2024-02-13 | 广东邦泽创科电器股份有限公司 | Paper shredder capable of automatically compressing paper scraps and paper scraps compression method of paper shredder |
| CN111891736B (en) * | 2020-06-22 | 2022-01-21 | 吴朋谦 | Manipulator of garbage packaging machine and use method of manipulator |
| CN111891736A (en) * | 2020-06-22 | 2020-11-06 | 吴朋谦 | Manipulator of garbage packaging machine and use method of manipulator |
| CN112570431B (en) * | 2021-01-05 | 2022-03-01 | 鹤山市新供销再生资源园区有限公司 | Garbage crushing device capable of automatically packaging and conveying |
| CN112570431A (en) * | 2021-01-05 | 2021-03-30 | 石家庄震贸科技有限公司 | Garbage crushing device capable of automatically packaging and conveying |
| CN112678379A (en) * | 2021-01-29 | 2021-04-20 | 吴冰冰 | Shell self-cleaning type garbage can based on environmental protection |
| CN112678379B (en) * | 2021-01-29 | 2022-06-21 | 南京灵雀智能制造有限公司 | Shell self-cleaning type garbage can based on environmental protection |
| CN114275400A (en) * | 2021-12-31 | 2022-04-05 | 上海拓牛智能科技有限公司 | Garbage bag packaging method |
| CN114275400B (en) * | 2021-12-31 | 2022-09-27 | 上海拓牛智能科技有限公司 | Garbage bag packaging method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190405 |
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| WW01 | Invention patent application withdrawn after publication |