EP3523225A1 - Facility for sorting piece goods with dosing device - Google Patents
Facility for sorting piece goods with dosing deviceInfo
- Publication number
- EP3523225A1 EP3523225A1 EP17777828.9A EP17777828A EP3523225A1 EP 3523225 A1 EP3523225 A1 EP 3523225A1 EP 17777828 A EP17777828 A EP 17777828A EP 3523225 A1 EP3523225 A1 EP 3523225A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plastic preforms
- sorting
- piece goods
- receiving means
- metering
- 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- Withdrawn
Links
Classifications
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4205—Handling means, e.g. transfer, loading or discharging means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/04—Devices for feeding articles or materials to conveyors for feeding articles
- B65G47/12—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles
- B65G47/14—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding
- B65G47/1407—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding the articles being fed from a container, e.g. a bowl
- B65G47/1442—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding the articles being fed from a container, e.g. a bowl by means of movement of the bottom or a part of the wall of the container
- B65G47/1471—Movement in one direction, substantially outwards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/04—Devices for feeding articles or materials to conveyors for feeding articles
- B65G47/12—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles
- B65G47/14—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding
- B65G47/1492—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding the articles being fed from a feeding conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/84—Star-shaped wheels or devices having endless travelling belts or chains, the wheels or devices being equipped with article-engaging elements
- B65G47/846—Star-shaped wheels or wheels equipped with article-engaging elements
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4205—Handling means, e.g. transfer, loading or discharging means
- B29C49/42051—Means for stripping, aligning or de-stacking
- B29C49/42057—Aligning disorderly arranged preforms, e.g. delivered disorderly
Definitions
- the present invention relates to a device for sorting piece goods and in particular of so-called plastic preforms.
- plastic preforms are heated and then blown in this heated state to plastic containers, in particular plastic bottles.
- the plastic preforms must already be fed to a furnace in an orderly manner.
- sorting devices are known from the prior art, whose task is to bring disordered plastic preforms in series and finally to allow a scattered transport of these plastic preforms.
- so-called roll sorters are known from the prior art. These roller sorters have two mutually parallel rotating rollers, between which the plastic preforms are guided. The plastic preforms remain hanging with their support ring between the two rollers, but the remaining body of the plastic preforms passes through the gap of the rollers. In this way an alignment of the plastic preforms is achieved.
- a device according to the invention for sorting piece goods (in general of objects) and in particular of plastic preforms has a feed device which feeds the piece goods (objects) and a sorting device arranged in a transport direction of the piece goods after the feed device, which is suitable and intended for this, the piece goods at least partially align.
- the device has a (object) metering device arranged in the transport direction of the piece goods between the feed device and the sorting device, which conveys the piece goods from the feed device to the sorting device and which is suitable and intended for this purpose from the feed device to meter the sorting device arriving piece goods.
- the piece goods and in particular the plastic preforms are not supplied directly, for example, from a supply to the sorting device, but are first guided through a metering device.
- a metering device which will be described in more detail below, is generally understood to mean a device which transports respectively limited numbers or defined numbers from a pulp of plastic preforms and supplies them to the sorting device. In this way, the preforming current to be supplied to the sorting device can be better regulated.
- the sorting device is also suitable and determined to transfer the piece goods in a single-lane transport.
- the sorter aligns the piece goods and in particular plastic preforms such that their longitudinal direction is vertical and in particular such that they are transported with an orifice upwards.
- the (object) metering device thus preferably prevents the objects and in particular piece goods from being sorted out and sorting in varying quantities. In this way, a smoother transport and also a smoother sorting of the plastic preforms can be achieved.
- the metering device has a transport unit, which transports the plastic preforms along a predetermined transport path.
- a transport unit which transports the plastic preforms along a predetermined transport path.
- This is preferably a curved transport path and particularly preferably a circularly curved transport path.
- a dosage is understood in particular to mean that fluctuations in the quantity of objects arriving at the sorting device are kept lower.
- the metering device causes fluctuations in the items arriving at the sorting device to occur of less than ⁇ 80%, preferably ⁇ 60%, preferably ⁇ 50% and particularly preferably ⁇ 30%.
- the feeding device can be, for example, a chute or a chute, via which the plastic preforms, in particular in disorder, are supplied, for example, as a pulp.
- the sorting device has a transport device which transports the plastic preforms along a predetermined transport path.
- This transport path can be curved or rectilinear.
- this transport path runs in a plane.
- this transport path runs at least in sections and preferably in a straight line at least in the region of the sorting device.
- the metering device has a plurality of movable receiving means which transport the objects and these receiving means are preferably each suitable and intended for receiving a predetermined number of objects. So it is possible for each a certain number of objects (which may still vary slightly) enters the receiving means and is promoted by these receiving means. This procedure ensures that ultimately a defined number or a number of plastic preforms moving within certain limits is conveyed from the feed device to the sorting device. In this way, a substantially constant supply flow of plastic preforms to the sorting device can be achieved.
- each of these receiving means is suitable for receiving exactly one plastic preform.
- the individual receiving means are each suitable for receiving a plurality of plastic preforms and determined. It is conceivable that these receiving means take the plastic preforms completely disordered, that is in any orientation. However, it would also be possible for the receiving means to already receive the plastic preforms in a specific preferred orientation, thereby facilitating the subsequent transfer to the sorting device.
- the metering device has a body rotatable about a predetermined axis of rotation and, in turn, receiving means for receiving a predetermined number of objects on this body.
- the metering device ultimately transports the plastic preforms along a circular or arcuate transport path.
- the receiving means are preferably suitable and intended to intervene in a plurality of plastic preforms and to remove a certain number of these plastic preforms from this plurality.
- this axis of rotation is a substantially horizontally extending axis of rotation. This means that preferably the plastic preforms are guided with the receiving means along an arc which extends in a substantially vertical plane.
- the axis of rotation is arranged obliquely or vertically. The substantially horizontal arrangement, however, offers the advantage of a relatively even feed and a relatively even transport of the plastic preforms.
- the receiving means are each configured as arranged on an outer circumference of the body recesses.
- the rotatable body at least on its outer periphery on a plurality of mutually parallel slots. It is possible that these slots are formed only on the outer circumference of the body, but it is possible and preferred that the rotatable body has a plurality of plates which are formed parallel to each other, so that the slots are formed between these respective plates ,
- carrier elements are provided, which hold the individual plates of the body together.
- these carriers can also extend in the direction of the axis of rotation or parallel to the axis of rotation of the entire body.
- these slots extend substantially perpendicular to the axis of rotation of the rotatable body. In this way, as described in greater detail, antidotes can also intervene in the said slots.
- the device has at least one stripping agent, which preferably extends at least temporarily in one, preferably in several and particularly preferably in all of the said slots.
- this stripping means is preferably arranged stationary and the slots move together with the body relative to this stripping means.
- the at least one stripping means can be set such that in each case only a certain number of plastic preforms is received and the remaining plastic preforms are stripped off again.
- the at least one stripping means is designed such that always the same amount of plastic preforms is stripped off and preferably transported downstream of the stripping means of each receiving means or each section of the metering roller approximately the same amount of plastic preforms. is being done.
- the stripping means By changing the position of the stripping means relative to the receiving means, the amount of plastic preforms still received by the receiving means downstream of the stripping means can advantageously be changed. More precisely, the stripping means below may have more precisely explained feed plates by means of which the quantity of the objects or plastic preforms in the receiving means can be finely adjusted.
- the receiving means have a sawtooth-like profile.
- this sawtooth-like profile it is possible in a particularly advantageous manner to receive supplied plastic preforms and to transport defined.
- the feed device has an inclined surface, via which the plastic preforms are fed to the metering device.
- this saw-tooth-like profile lies in particular, viewed in a projection, in the direction of rotation of the rotatable body.
- the device has at least two receiving means, preferably at least three receiving means and preferably at least four receiving means and more preferably at least five receiving means.
- the rotatable body has at most 30, preferably at most 25 and particularly preferably at most 20 receiving means.
- the number of receiving means can also be over 30 (for example, at 60, 80 or even more). It would also be possible for a plurality of receiving means to be arranged one behind the other along an axis of rotation of the rotatable body.
- a piece number limiting means is provided at an inlet of the metering device, which limits a piece number of the piece goods reaching the metering device.
- a wall may be present which has a slot which allows only a limited cross-section of plastic preforms to reach the metering device.
- the above-mentioned sawtooth roller is used as dosing.
- This roll is, as mentioned above, slit in the circumference several times, wherein in the slots preferably fixed stripper plates are arranged so that the slots of the metering roll they pass and a stripper engages each in a slot of the metering roller.
- the contour of the fixed stripper plate ensures that the preforms are "stripped off.”
- the metering roller or the rotatable body it is also possible for the metering roller or the rotatable body to have rotating plates which form slots between them, in each of which the stripper plates are arranged.
- These stripping plates are preferably designed such that upon rotation of the rotatable body they push the objects or plastic preforms located in the respective receiving means (in particular radially) outwards and thus a certain proportion of the plastic preforms falls out of the respective receiving means.
- the plastic preforms may be supplied via a feed means, such as a feed belt, in which case it would also be possible for the plastic preforms to be conveyed directly from the feed means to the rotatable feed preform Be promoted body, in particular without provision of a container particularly preferably, the above-mentioned Abstreifsch relative to the rotatable body adjustable. These may be pivotable and / or be deliverable along a line. In this way, the amount of each transported in the receiving means plastic preforms can be adjusted.
- a transport device is provided, which supplies the feed device with plastic preforms.
- a main and a return belt can be provided, which serve to fill the respective removal container.
- the piece number limiting means is designed as a wall, which is arranged above the first feed device and which forms a gap with the feed device.
- this gap is preferably formed with a transport plane of the feed device. It is also possible that a first coarse alignment of the plastic preforms already takes place through this gap.
- the guiding device may for example have a conveyor belt and / or a chute, which / which transports the plastic preforms.
- this gap is also controlled by this gap. Also, this gap or its width is preferably variable, so that the amount of objects which are received and transported by the metering device, is variable.
- the sorting device is designed as a roller sorter or as a disc sorter.
- the sorter preferably has two rotating rollers, between which a gap is formed, within which the plastic preform is guided.
- the plastic preforms are transported in the roller sorter along a straight-line transport path.
- At least one boundary wall is arranged laterally next to the rotatable body. This is in particular a stationary boundary wall.
- the boundary wall rotates and, for example, also the individual receiving means laterally limited. These boundary walls prevent plastic preforms from falling out of the receiving means.
- these boundary walls together with the receiving means form a receiving space for receiving the plastic preforms.
- the plastic preforms are conveyed along a semicircle or generally along a circular path.
- the present invention is further directed to a metering device for transporting plastic preforms.
- This has an inlet, via which the metering device, the plastic preforms are fed.
- the metering device has a body rotatable about a predetermined axis of rotation, on the outer circumference of a plurality of receiving means is arranged, each of these receiving means for receiving at least one and preferably a plurality of plastic preforms is suitable and determined.
- the rotatable body is configured in the manner described above.
- the axis of rotation is aligned horizontally.
- the rotatable body is formed in the manner of a paddle wheel.
- the inlet is designed such that the receiving means can automatically, in particular under the action of gravity, to record these adjacent plastic preforms.
- the present invention is further directed to a method for sorting objects, and in particular plastic preforms.
- a plurality of plastic preforms is transported from a feed device to a sorting device and sorted by this sorting device.
- the plastic preforms are preferably at least partially aligned uniformly for this sorting.
- the plastic preforms are transported by means of a metering device which is arranged between the feed device and the sorting device and metered from this metering device to the sorting device.
- plastic preforms are transferred to the sorting device in specific doses or respective numbers.
- the plastic preforms are transported by the metering device along a circular transport path.
- the plastic preforms are transported around a predetermined axis of rotation.
- the plastic preforms are transported with a plurality of receiving means and in particular in separate groups.
- the receiving means are spatially separated from each other by at least one wall.
- the plastic preforms are at a transport angle of at least 10 °, preferably at least 20 °, preferably less than at least 30 °, preferably of at least 40 °, preferably of at least 60 °, preferably transported by at least 90 ° and preferably of at least 120 °.
- the plastic preforms are transported by a transport angle of less than 300 °, preferably less than 270 °, preferably less than 250 °, preferably less than 230 ° and preferably less than 200 °.
- the plastic preforms remain under the action of gravity at least for a part of their transport path in the receiving means. Preferably, at a certain rotational position, the plastic preforms also fall out of the receiving means under the action of gravity.
- the device has a discharge device, which further transports the plastic preforms falling out of the receiving means.
- a discharge device which further transports the plastic preforms falling out of the receiving means.
- This may be, for example, a slide device or the like on which the plastic preforms fall and which then conveys these plastic preforms to the actual sorting device.
- the device prefferably has at least one further and preferably further stripping means, which are provided in an outlet region of the rotatable body or the sorting device; these further stripping means can serve to simplify further conveying of the plastic preforms to the sorting device.
- the device has a drive device for driving the rotatable body.
- this drive device is selected from a group of drive devices which contains electric drive devices, in particular electromotive drive devices, pneumatic drive devices, hydraulic drive devices and the like.
- Fig. 1 is a schematic representation of a device according to the invention for
- Fig. 2 is a schematic overall view of an inventive device
- FIG. 3 shows a detailed representation of the metering device according to the invention.
- FIG. 4 shows a further illustration of an inventive device.
- FIG. 1 shows a device 1 for sorting plastic preforms 10. It has a first feed device 2 which supplies plastic preforms 10. In this case, this feed device 2 has a two conveyor pulleys (only one shown) circulating conveyor belt 26. At this conveyor belt 26, a chute 24 connects, along which slide the plastic preforms 10 to a metering device 4 shown only schematically. The metering device 4 meters the plastic preforms 10 in the direction of the sorting device 6.
- the sorting device 6 has two rollers 62 and 64, which are arranged parallel to each other, and rotate about mutually parallel axes of rotation D2 and D3. Reference numerals P1 and P2 indicate the respective directions of rotation.
- an alignment device (not shown) may be provided which aligns the plastic preforms between the rollers of the sorting device 6.
- This alignment device can be located between the metering device and the sorting device 6.
- the metering of the plastic preforms takes place through an interaction between the metering device 4 and a further conveying device, such as, for example, a high-level conveyor.
- a gap SP is formed, which has a width such that a base body 10b of a plastic preform 10 can enter it, but a support ring 10a of the plastic preform is held by the rollers 62 and 64 or their outer peripheries.
- a sorting of the individual plastic preforms is achieved such that they are now transported here perpendicular to the plane of the figure and one behind the other.
- Fig. 2 shows an overall view of a system with a device according to the invention.
- This system for conveying plastic preforms has a first conveyor 80, in particular a so-called high conveyor, which conveys upwards the plastic preform (not shown).
- the plastic preforms reach the conveyor belt 26 and are conveyed to the metering device 4 via an outlet 72 thereof and a feed rail 48.
- the reference numeral 6 again indicates the sorting device such as a roller sorter.
- the reference numeral 82 refers to a receiving device, in which the plastic preforms are conveyed by the conveyor.
- FIG. 3 shows an illustration of the metering device 4.
- This metering device has a feed rail 48, which runs obliquely here and along which plastic preforms (not shown) are fed to a feed region B.
- the reference numeral 45 denotes a limiting means which forms a gap with the feed rail 48, so that the number of plastic preforms entering the feed region B is limited.
- the reference numeral 44 denotes a body rotatable about a rotation axis D, which has a plurality of receiving means 42 on its outer periphery. These receiving means can enter the plastic preforms and in this way are transported with the individual receiving means 42 only limited numbers of plastic preforms.
- the rotatable body has here a multiplicity of plates 43 which are arranged parallel to one another and which each form a gap 52 between them.
- the reference numeral 54 denotes a stripping agent which enters this column.
- the stripping means also has a multiplicity of plates or strips 54a, 54b, which respectively enter the gaps 52.
- the reference numerals 56 and 58 designate lateral boundary walls, which are arranged stationary. Through these boundary walls, the receiving means together form receiving volumes for receiving the plastic preforms.
- Reference numerals 57 designate webs which connect the two walls 56 and 58 to each other.
- the plastic preforms (not shown) are therefore received at the left area in the feed area B by the individual receiving means.
- the stripping means ensure that defined numbers of plastic preforms are located in the receiving means 42 and are transported by them. It is conceivable that the Ab- strip means are adjusted in their entirety, for example, be moved in a straight line or can be pivoted. In this way, the number of as a result, still located in the receiving means plastic preforms can be controlled.
- FIG. 4 shows a further schematic representation of a device according to the invention.
- a further stripping agent 66 is shown, which serves to challenge the plastic preforms easier from the respective receiving means.
- This further stripping means can also have a chute element which conveys the plastic preforms further to the sorting device (not shown).
- different parameters of the device shown in Fig. 4 are adjustable.
- the position of the stripping means 54 relative to the rotatable body 44 is advantageously adjustable. In this way, it can be adjusted how many plastic preforms are each conveyed by the individual receiving means.
- a rotational speed of the rotatable body 44 may be adjustable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202016105590.3U DE202016105590U1 (en) | 2016-10-07 | 2016-10-07 | Device for sorting with piece goods with metering device |
PCT/EP2017/073902 WO2018065227A1 (en) | 2016-10-07 | 2017-09-21 | Facility for sorting piece goods with dosing device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3523225A1 true EP3523225A1 (en) | 2019-08-14 |
Family
ID=57583883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17777828.9A Withdrawn EP3523225A1 (en) | 2016-10-07 | 2017-09-21 | Facility for sorting piece goods with dosing device |
Country Status (5)
Country | Link |
---|---|
US (1) | US20210283823A1 (en) |
EP (1) | EP3523225A1 (en) |
CN (1) | CN110088017A (en) |
DE (1) | DE202016105590U1 (en) |
WO (1) | WO2018065227A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7170326B2 (en) * | 2019-09-05 | 2022-11-14 | 株式会社オーエスアイツール | Wearing control device |
DE102022131128A1 (en) * | 2022-11-24 | 2024-05-29 | Khs Gmbh | Inclined conveyor for conveying containers |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1091483B (en) * | 1957-01-31 | 1960-10-20 | Spooner Dryer & Engineering Co | Device for separating essentially rod-shaped objects lying in random bundles or piles |
DE1201763B (en) * | 1962-11-29 | 1965-09-23 | Transporttechnik G M B H | Device for separating rod-shaped objects |
FR2556273B1 (en) * | 1983-12-09 | 1986-07-25 | Pont A Mousson | PROCESS FOR MANUFACTURING PLASTIC BOTTLES FROM BLANKS AND BLANK OBTAINED FROM THIS PROCESS |
DE102007061196A1 (en) * | 2007-12-17 | 2009-06-25 | Krones Ag | Device for sorting piece goods |
CN101284597B (en) * | 2008-05-08 | 2013-03-13 | 杨晖伟 | Unscrambling method and unscrambler utilizing the unscrambling method |
WO2011117983A1 (en) * | 2010-03-24 | 2011-09-29 | 日本たばこ産業株式会社 | Method and device for supplying granular objects |
DE102012011028B4 (en) * | 2012-06-05 | 2020-03-05 | Bernhard Hunklinger | Filling container for shaped stones with a shaped stone removal device |
-
2016
- 2016-10-07 DE DE202016105590.3U patent/DE202016105590U1/en active Active
-
2017
- 2017-09-21 US US16/338,889 patent/US20210283823A1/en not_active Abandoned
- 2017-09-21 EP EP17777828.9A patent/EP3523225A1/en not_active Withdrawn
- 2017-09-21 WO PCT/EP2017/073902 patent/WO2018065227A1/en unknown
- 2017-09-21 CN CN201780061718.3A patent/CN110088017A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE202016105590U1 (en) | 2016-12-05 |
WO2018065227A1 (en) | 2018-04-12 |
CN110088017A (en) | 2019-08-02 |
US20210283823A1 (en) | 2021-09-16 |
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