CN208806142U - A kind of centre in the same direction goes out foot SMD inductance hot pressing die - Google Patents
A kind of centre in the same direction goes out foot SMD inductance hot pressing die Download PDFInfo
- Publication number
- CN208806142U CN208806142U CN201821335492.XU CN201821335492U CN208806142U CN 208806142 U CN208806142 U CN 208806142U CN 201821335492 U CN201821335492 U CN 201821335492U CN 208806142 U CN208806142 U CN 208806142U
- Authority
- CN
- China
- Prior art keywords
- fixed plate
- hole
- hot pressing
- plate
- column
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of centres in the same direction to go out foot SMD inductance hot pressing die, including lower template, cope plate is equipped at the top of the lower template, guide post is equipped between the lower template and cope plate, the lower template surface crown is equipped with fixed plate, is equipped with lower punch inside the fixed plate, middle mould is equipped at the top of the lower punch, the cope plate bottom rushes backing plate on being equipped with, it is described on rush backing plate bottom and be equipped with and rush fixed plate, it is described on rush fixed plate bottom equipped with top board.The utility model by be equipped with fixed plate, on rush fixed plate and top board, it is rushed in fixed plate inside fixed plate and top board respectively uniformly through equipped with the first heating jack, the second heating jack and third heating jack, it is heated first and is plugged with thermocouple progress heating work inside jack, the second heating jack and third heating jack, it can guarantee that hot pressing temperature is constant and hot pressing effect, so that temperature in die molding process is maintained at 150 DEG C -180 DEG C, ensure that formed in mould working efficiency.
Description
Technical field
The utility model relates to inductor models field, in particular to a kind of centre in the same direction goes out foot SMD inductance hot pressing die.
Background technique
SMD patch type inductance, electrode coil use flat wire, and electrode is foot of clearing in the same direction.The inductance is based on performance requirement,
Electrode size is larger, so surrounding iron powder shell sizes are relatively thin, such as uses cold-press moulding, and finished product yield not can guarantee, so
The stabilization of mold must cannot be guaranteed using the technique of T-CORE heating pressure in existing mold production process on forming technology
Stablize, will lead to that product hardness reduces, therefore quality decline invents a kind of centre in the same direction and goes out foot SMD inductance hot pressing die to solve
Certainly the above problem is necessary.
Utility model content
The purpose of this utility model is to provide a kind of centres in the same direction to go out foot SMD inductance hot pressing die, is fixed by being equipped with
Plate, on rush fixed plate and top board, rushed in fixed plate inside fixed plate and top board respectively uniformly through being equipped with the first heating
Jack, the second heating jack and third heat jack, heat inside jack, the second heating jack and third heating jack first
It is plugged with thermocouple and carries out heating work, it is ensured that hot pressing temperature is constant and hot pressing effect, makes die molding process medium temperature
Degree is maintained at 150 DEG C -180 DEG C, ensure that formed in mould working efficiency, to solve to cannot be guaranteed in existing mold production process
Mold is stablized, and will lead to the problem of product hardness reduces, quality declines.
To achieve the above object, the utility model provides the following technical solutions: a kind of centre in the same direction goes out foot SMD inductance hot pressing
Mold, including lower template, the lower template top is equipped with cope plate, guide post is equipped between the lower template and cope plate, described
Lower template surface crown is equipped with fixed plate, and lower punch is equipped with inside the fixed plate, and middle mould is equipped at the top of the lower punch, described
Cope plate bottom rushes backing plate on being equipped with, it is described on rush backing plate bottom and be equipped with and rush fixed plate, it is described on rush fixed plate bottom and be equipped with
Top board, it is described on rush between fixed plate and top board and be uniformly provided with limit plate, it is described on rush inside fixed plate through being equipped with
On rush column, it is described on rush column side equipped with inner guiding post, it is described on rush the column other side equipped with contour sleeve.
Preferably, the cope plate bottom is equipped with guide sleeve, and the guide sleeve, which is set to, to be rushed backing plate side and be hollow setting,
The guide sleeve is integrated setting with cope plate, and the guide post and guide sleeve are socketed, and the guide post is fixed through guide sleeve with cope plate
Connection.
Preferably, groove is equipped with inside the fixed plate, the lower punch and groove are clamped, uniformly set on the outside of the groove
There is the first heating jack.
Preferably, the lower punch two sides are uniformly provided with sliding panel, uniformly set between the lower punch, sliding panel and middle mould
There are the positioning pin and positioning inclined-plane for fastening lower punch, sliding panel and middle mould position.
Preferably, boss is uniformly provided at the top of the lower punch, the boss quantity is set as four groups and height is different, institute
It states and is uniformly provided with location hole on the outside of lower punch.
Preferably, it is rushed on described inside fixed plate and uniformly to rush column through-hole through being equipped with first, described first rushes column through-hole one
Side, which is run through, is equipped with sleeve through hole, and described first, which rushes the column through-hole other side, runs through equipped with the first inner guiding post through-hole, and the upper punching is fixed
Intralamellar part uniformly runs through equipped with the second heating jack.
Preferably, the top board two sides are equipped with card slot, and the card slot and limit plate are clamped, inside the top board
Column through-hole uniformly is rushed through being equipped with second, and described second rushes and be equipped with the second inner guiding post through-hole on the outside of column through-hole, in the top board
Portion, which is uniformly run through, heats jack equipped with third.
Preferably, thermocouple is plugged with inside the first heating jack, the second heating jack and third heating jack
Heating work is carried out, guarantees that hot pressing temperature is constant and hot pressing effect.
Preferably, column is rushed on described sequentially pass through first rush column through-hole, second rush column through-hole and middle mould and extend to middle mould
Inside, the inner guiding post sequentially pass through the first inner guiding post through-hole, the second inner guiding post through-hole and fixed plate and extend in fixed plate
Portion, the contour sleeve sequentially pass through sleeve through hole, on rush backing plate and cope plate and extend to inside cope plate.
The technical effect and advantage of the utility model:
1, by be equipped with fixed plate, on rush fixed plate and top board, fixed plate and top board inner part are rushed in fixed plate
Not not uniformly through the first heating jack, the second heating jack and third heating jack is equipped with, jack, the second heating are heated first
Thermocouple is plugged with inside jack and third heating jack and carries out heating work, it is ensured that hot pressing temperature is constant and hot pressing is imitated
Fruit makes temperature in die molding process be maintained at 150 DEG C -180 DEG C, ensure that formed in mould working efficiency；
2, by being equipped with lower punch and middle mould, lower punch is equipped with height boss everywhere, its height of higher-height boss
Go out that foot height is consistent with inductance electrode, for holding the foot that goes out of electrode coil, lower boss is for the fixed T-CORE of detent, first
The T-CORE for packaging coil (the inductance green body center pillar pressed in advance and lower half portion) is put into middle mould die cavity outside mold and carries out SMD
The shaping work of inductance；
3, by rushing column and inner guiding post on being equipped with, after mold begins to warm up rated temperature, cope plate downlink drives and rushes
Column and inner guiding post downlink, inner guiding post be first inserted into location hole between mould and sliding panel middle mould is positioned, then on rush during column enters
Mould die cavity pressurizes to powder, and inner guiding post exits sliding panel after the completion of pressurization, mould and the SMD inductance by compression moulding in taking-up
Green body is deviate from by de- material jig, completes entire shaping work.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the lower punch top view of the utility model；
Fig. 3 is the fixed plate top view of the utility model；
Fig. 4 is the fixed plate front view of the utility model；
Fig. 5 be the utility model on rush fixed plate top view；
Fig. 6 is the top board top view of the utility model；
In figure: 1 lower template, 2 cope plates, 21 guide sleeves, 3 guide posts, 4 fixed plates, 41 grooves, 42 first heating are inserted
Hole, 51 sliding panels, 52 boss, 53 location holes, mould in 6, rushes backing plate, rushes fixed plate, 81 on 85 lower punches on 7
One rushes column through-hole, 82 sleeve through hole, 83 first inner guiding post through-holes, 84 second heating jacks, 9 top boards, 91 card slots, 92
Second rushes column through-hole, 93 second inner guiding post through-holes, 94 thirds heating jack, 10 limit plates, rushes column on 11, leads in 12
The high sleeve such as column, 13.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment one:
The utility model provides a kind of centre in the same direction as shown in figures 1 to 6 and goes out foot SMD inductance hot pressing die, including lower die
Plate 1 is equipped with cope plate 2 at the top of the lower template 1, and guide post 3, the lower template 1 are equipped between the lower template 1 and cope plate 2
Surface crown is equipped with fixed plate 4, and lower punch 5 is equipped with inside the fixed plate 4, and middle mould 6 is equipped at the top of the lower punch 5, described
2 bottom of cope plate rushes backing plate 7 on being equipped with, it is described on rush 7 bottom of backing plate and be equipped with and rush fixed plate 8, it is described on rush 8 bottom of fixed plate
Equipped with top board 9, it is described on rush between fixed plate 8 and top board 9 be uniformly provided with limit plate 10, it is described on rush in fixed plate 8
Portion, which is run through, to be equipped with and rushes column 11, it is described on rush 11 side of column equipped with inner guiding post 12, it is described on rush 11 other side of column equipped with contour set
Cylinder 13.
2 bottom of cope plate is equipped with guide sleeve 21, and the guide sleeve 21, which is set to, to be rushed 7 side of backing plate and be hollow setting,
The guide sleeve 21 and cope plate 2 are integrated setting, and the guide post 3 is socketed with guide sleeve 21, the guide post 3 run through guide sleeve 21 with it is upper
Template 2 is fixedly connected.
Groove 41 is equipped with inside the fixed plate 4, the lower punch 5 is clamped with groove 41, and 41 outside of groove is uniformly
Equipped with the first heating jack 42.
8 inside of fixed plate is rushed on described and uniformly rushes column through-hole 81 through equipped with first, and described first rushes 81 side of column through-hole
Through sleeve through hole 82 is equipped with, described first, which rushes 81 other side of column through-hole, runs through equipped with the first inner guiding post through-hole 83, the upper punching
8 inside of fixed plate is uniformly through equipped with the second heating jack 84.
9 two sides of top board are equipped with card slot 91, and the card slot 91 is clamped with limit plate 10, in the top board 9
Portion, which is uniformly run through, rushes column through-hole 92 equipped with second, and described second rushes equipped with the second inner guiding post through-hole 93 on the outside of column through-hole 92, described
Jack 94 uniformly is heated through equipped with third in 9 inside of top board.
It is described first heating jack 42, second heat jack 84 and third heating jack 94 inside be plugged with thermocouple into
Row heating work guarantees that hot pressing temperature is constant and hot pressing effect.
The present embodiment in fixed plate 4 the utility model has the advantages that rush inside fixed plate 8 and top board 9 respectively uniformly through being equipped with the
One heating jack 42, second heats jack 84 and third heats jack 94, heats 84 and of jack in the first heating jack 42, second
Thermocouple, which is plugged with, inside third heating jack 94 carries out heating work, it is ensured that hot pressing temperature is constant and hot pressing effect,
So that temperature in die molding process is maintained at 150 DEG C -180 DEG C, ensure that formed in mould working efficiency.
Embodiment two:
5 two sides of lower punch are uniformly provided with sliding panel 51, uniformly set between the lower punch 5, sliding panel 51 and middle mould 6
There are the positioning pin and positioning inclined-plane for fastening 6 position of lower punch 5, sliding panel 51 and middle mould.
Boss 52 is uniformly provided at the top of the lower punch 5,52 quantity of boss is set as four groups and height is different, described
Location hole 53 is uniformly provided on the outside of lower punch 5.
The present embodiment the utility model has the advantages that lower punch 5 is equipped with height boss 52 everywhere, higher-height its height of boss 52 with
Inductance electrode goes out that foot height is consistent, and for holding the foot that goes out of electrode coil, lower boss 52 is for the fixed T-CORE of detent, first
The T-CORE for packaging coil (the inductance green body center pillar pressed in advance and lower half portion) middle 6 die cavity of mould is put into outside mold to carry out
The shaping work of SMD inductance.
Embodiment three:
Column 11 is rushed on described sequentially pass through first rush column through-hole 81, second rush column through-hole 92 and middle mould 6 and extend to middle mould 6
Inside, the inner guiding post 12 sequentially pass through the first inner guiding post through-hole 83, the second inner guiding post through-hole 93 and fixed plate 4 and extend to solid
Inside fixed board 4, the contour sleeve 13 sequentially pass through sleeve through hole 82, on rush backing plate 7 and cope plate 2 and extend to cope plate 2
It is internal.
After the present embodiment is the utility model has the advantages that mold begins to warm up rated temperature, 2 downlink of cope plate, which drives, rushes column 11 and interior
12 downlink of guide post, inner guiding post 12 be first inserted into location hole between mould 6 and sliding panel 51 middle mould 6 is positioned, then on rush column 11 into
Enter middle 6 die cavity of mould to pressurize to powder, inner guiding post 12 exits sliding panel 51 after the completion of pressurization, mould 6 and will be pressed into taking-up
The SMD inductance green body of shape is deviate from by de- material jig, completes entire shaping work.
Utility model works principle:
Referring to Figure of description 1, Fig. 3, Fig. 4, Fig. 5 and Fig. 6: rushing 9 inner part of fixed plate 8 and top board in fixed plate 4
Not uniformly heat jack 94 through being equipped with the first heating jack 42, second and heat jack 84 and third, first heat jack 42,
Thermocouple is plugged with inside second heating jack 84 and third heating jack 94 and carries out heating work, it is ensured that hot pressing temperature
Constant and hot pressing effect makes temperature in die molding process be maintained at 150 DEG C -180 DEG C, ensure that formed in mould work effect
Rate；
Referring to Figure of description 1 and Fig. 2: when forming, lower punch 5 is equipped with height boss 52 everywhere, higher-height convex
Its height of platform 52 goes out that foot height is consistent with inductance electrode, and for holding the foot that goes out of electrode coil, lower boss 52 is used for detent
The T-CORE for packaging coil (the inductance green body center pillar pressed in advance and lower half portion), is first put into outside mold by fixed T-CORE
6 die cavity of mould carries out the shaping work of SMD inductance, then is packed by the positioning finger setting on the location hole and lower punch 5 on middle mould 6
Lower punch 5, by middle mould 6 and lower punch 5 it is flat-pushing enter sliding panel 51, alloy powder is inserted on middle 6 die cavity top of mould, then is put into mould together
Have in fixed plate 4, subsequent first heating jack 42, second heats and is plugged with thermoelectricity inside jack 84 and third heating jack 94
It is even to carry out heating work；
Referring to Figure of description 1, Fig. 5 and Fig. 6: after mold begins to warm up rated temperature, 2 downlink of cope plate drives and rushes
12 downlink of column 11 and inner guiding post, inner guiding post 12 be first inserted into location hole between mould 6 and sliding panel 51 middle mould 6 is positioned, then on
Rush column 11 enter in 6 die cavity of mould pressurize to powder, inner guiding post 12 exits sliding panel 51 after the completion of pressurization, and mould 6 is simultaneously in taking-up
The SMD inductance green body of compression moulding is deviate from by de- material jig, completes entire shaping work
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of centre in the same direction goes out foot SMD inductance hot pressing die, including lower template (1), it is characterised in that: the lower template (1)
Top is equipped with cope plate (2), is equipped with guide post (3) between the lower template (1) and cope plate (2), lower template (1) the surface top
Portion is equipped with fixed plate (4), is equipped with lower punch (5) inside the fixed plate (4), is equipped with middle mould (6) at the top of the lower punch (5),
Cope plate (2) bottom be equipped on rush backing plate (7), it is described on rush backing plate (7) bottom be equipped on rush fixed plate (8), it is described on
Fixed plate (8) bottom is rushed equipped with top board (9), it is described on rush between fixed plate (8) and top board (9) and be uniformly provided with limit plate
(10), rush on described inside fixed plate (8) and rushed column (11) on being equipped with, it is described on rush column (11) side equipped with inner guiding post
(12), column (11) other side is rushed on described equipped with contour sleeve (13).
2. a kind of centre in the same direction according to claim 1 goes out foot SMD inductance hot pressing die, it is characterised in that: the upper mold
Plate (2) bottom is equipped with guide sleeve (21), and the guide sleeve (21), which is set to, rushes backing plate (7) side and be hollow setting, the guide sleeve
It (21) is integrated setting with cope plate (2), the guide post (3) and guide sleeve (21) are socketed, and the guide post (3) runs through guide sleeve (21)
It is fixedly connected with cope plate (2).
3. a kind of centre in the same direction according to claim 1 goes out foot SMD inductance hot pressing die, it is characterised in that: the fixation
Groove (41) are equipped with inside plate (4), the lower punch (5) and groove (41) are clamped, and the is uniformly provided on the outside of the groove (41)
One heating jack (42).
4. a kind of centre in the same direction according to claim 1 goes out foot SMD inductance hot pressing die, it is characterised in that: convex under described
Mould (5) two sides are uniformly provided with sliding panel (51), are uniformly provided with and are used between the lower punch (5), sliding panel (51) He Zhongmo (6)
Fasten lower punch (5), the positioning pin of sliding panel (51) He Zhongmo (6) position and positioning inclined-plane.
5. a kind of centre in the same direction according to claim 1 goes out foot SMD inductance hot pressing die, it is characterised in that: convex under described
It is uniformly provided with boss (52) at the top of mould (5), boss (52) quantity is set as four groups and height is different, the lower punch (5)
Outside is uniformly provided with location hole (53).
6. a kind of centre in the same direction according to claim 3 goes out foot SMD inductance hot pressing die, it is characterised in that: the upper punching
Fixed plate (8) inside uniformly rushes column through-hole (81) through equipped with first, and described first, which rushes column through-hole (81) side, runs through equipped with set
Cylinder through-hole (82), described first, which rushes column through-hole (81) other side, runs through equipped with the first inner guiding post through-hole (83), and the upper punching is fixed
Plate (8) is internal uniformly through equipped with the second heating jack (84).
7. a kind of centre in the same direction according to claim 6 goes out foot SMD inductance hot pressing die, it is characterised in that: the upper pressure
Plate (9) two sides are equipped with card slot (91), and the card slot (91) and limit plate (10) clamping, the top board (9) are internal uniformly
It is rushed column through-hole (92) through being equipped with second, described second rushes equipped with the second inner guiding post through-hole (93) on the outside of column through-hole (92), described
Top board (9) is internal uniformly through equipped with third heating jack (94).
8. a kind of centre in the same direction according to claim 7 goes out foot SMD inductance hot pressing die, it is characterised in that: described first
Thermocouple, which is plugged with, inside heating jack (42), the second heating jack (84) and third heating jack (94) carries out heater
Make, guarantees that hot pressing temperature is constant and hot pressing effect.
9. a kind of centre in the same direction according to claim 7 goes out foot SMD inductance hot pressing die, it is characterised in that: the upper punching
Column (11) sequentially passes through first and rushes column through-hole (81), second rushes column through-hole (92) He Zhongmo (6) and to extend to middle mould (6) internal,
The inner guiding post (12) sequentially passes through the first inner guiding post through-hole (83), the second inner guiding post through-hole (93) and fixed plate (4) and extends
It is internal to fixed plate (4), the contour sleeve (13) sequentially pass through sleeve through hole (82), on rush backing plate (7) and cope plate (2) and
It is internal to extend to cope plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821335492.XU CN208806142U (en) | 2018-08-20 | 2018-08-20 | A kind of centre in the same direction goes out foot SMD inductance hot pressing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821335492.XU CN208806142U (en) | 2018-08-20 | 2018-08-20 | A kind of centre in the same direction goes out foot SMD inductance hot pressing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208806142U true CN208806142U (en) | 2019-04-30 |
Family
ID=66236100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821335492.XU Expired - Fee Related CN208806142U (en) | 2018-08-20 | 2018-08-20 | A kind of centre in the same direction goes out foot SMD inductance hot pressing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208806142U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166716A (en) * | 2018-08-20 | 2019-01-08 | 长钰模具(苏州)有限公司 | A kind of centre in the same direction goes out foot SMD inductance hot pressing die |
| CN110523991A (en) * | 2019-06-29 | 2019-12-03 | 深圳感通科技有限公司 | A kind of integrated inductor molding machine |
-
2018
- 2018-08-20 CN CN201821335492.XU patent/CN208806142U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166716A (en) * | 2018-08-20 | 2019-01-08 | 长钰模具(苏州)有限公司 | A kind of centre in the same direction goes out foot SMD inductance hot pressing die |
| CN110523991A (en) * | 2019-06-29 | 2019-12-03 | 深圳感通科技有限公司 | A kind of integrated inductor molding machine |
| CN110523991B (en) * | 2019-06-29 | 2021-01-12 | 深圳感通科技有限公司 | Integrated inductor forming machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208806142U (en) | A kind of centre in the same direction goes out foot SMD inductance hot pressing die | |
| CN107819089B (en) | Manufacturing process and forming equipment of 3D battery cover | |
| CN206736080U (en) | A kind of hot-work die of glass bending shaping | |
| CN106493360A (en) | The compacting tool set of neodymium iron boron magnetic body | |
| CN109166717A (en) | Integrated inductance forming method | |
| CN109166716A (en) | A kind of centre in the same direction goes out foot SMD inductance hot pressing die | |
| CN205592254U (en) | Sticky design of soundboard setting device that colds pressing | |
| CN109648005B (en) | Pin bending device of electronic element | |
| CN111283951A (en) | Latex pillow forming process | |
| CN203390060U (en) | Door frame hinge box drawing mold | |
| CN105437605B (en) | Automatic die unloading die for one-way press | |
| CN208759873U (en) | Three layers of production mould of the hot-forming inside gadget of automobile | |
| CN208792050U (en) | A kind of mold for three-dimensional paper pulp molded article surface concave and convex technology | |
| CN207639089U (en) | A kind of assembled fixture of PCB and shell | |
| CN217622174U (en) | Embossing glove embossing production device and production line | |
| CN210820674U (en) | Low-pressure injection molding lower template assembly capable of preventing material breakdown | |
| CN213704525U (en) | Hot bending device for rear cover of mobile phone formed by 3D composite board | |
| CN217025762U (en) | Curved glass forming die | |
| CN204740943U (en) | Integral type inductance forming die | |
| CN216659017U (en) | Forming die of power inductance | |
| CN218019986U (en) | Injection mold easy to radiate heat | |
| CN218283549U (en) | Chip forming device | |
| CN215508716U (en) | Cell-phone shell stamping die convenient to ejection of compact | |
| CN205818307U (en) | The mould of thermosetting plastics | |
| CN220146672U (en) | Sewing ball simulation imprinting mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190430 |