CN109049392A - A kind of plastic grain cutting machine of no stationary knife - Google Patents
A kind of plastic grain cutting machine of no stationary knife Download PDFInfo
- Publication number
- CN109049392A CN109049392A CN201811055946.2A CN201811055946A CN109049392A CN 109049392 A CN109049392 A CN 109049392A CN 201811055946 A CN201811055946 A CN 201811055946A CN 109049392 A CN109049392 A CN 109049392A
- Authority
- CN
- China
- Prior art keywords
- roller
- conveying roller
- cutting machine
- stationary knife
- hobboing cutter
- 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.)
- Pending
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- 229920003023 plastic Polymers 0.000 title claims abstract description 37
- 239000004033 plastic Substances 0.000 title claims abstract description 37
- 238000005520 cutting process Methods 0.000 title claims abstract description 25
- 239000011230 binding agent Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000003825 pressing Methods 0.000 claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005453 pelletization Methods 0.000 description 8
- 229920000426 Microplastic Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention belongs to the technical fields of plastic processing, it is related to a kind of plastic grain cutting machine of no stationary knife, including rack, substrate is provided with above rack, feed opening is provided on substrate, feed opening is connected with blanking channel, bearing block is respectively arranged at left and right sides of the feed opening, front and back, which is arranged side by side, between bearing block conveying roller and hobboing cutter roller, the rotary shaft of the conveying roller and hobboing cutter roller is threaded through among the bearing of bearing block, several axial rectangles first are provided on the outer peripheral surface of conveying roller through slot, several axial bar shaped cutters are provided on the outer peripheral surface of hobboing cutter roller, the cutter and first runs through slot clearance fit, feeding device and material pressing device are provided with above the conveying roller, rotation is driven by motor in the conveying roller and hobboing cutter roller.Plastic grain cutting machine provided by the invention does not use stationary knife, and structure is simple, and assembly precision requires low, occupies little space, and long service life, binder effect is good, and cutter is replaceable, and noise is small when work, will not skid with it is stuck.
Description
Technical field
The invention belongs to the technical fields of plastic processing, are related to a kind of plastic grain cutting machine of no stationary knife.
Background technique
In the technique of plastic processing, the plastic strip of strip is generally first squeezed out, then uses pelleter by strip
Plastic strip carries out pelletizing.
The structure of existing plastic grain cutting machine generally includes feed inlet, and traction roller is provided with below feed inlet, traction roller
Lower section is provided with stationary knife and hobboing cutter, and stationary knife and hobboing cutter, which are matched, carries out pelletizing to the plastic strip that conveying comes.
The shortcomings that above-mentioned plastic grain cutting machine is mainly: 1, the assembly precision between stationary knife and hobboing cutter requires very high, and
Use process middle (center) bearing is possible to loosen, and can interfere between stationary knife and hobboing cutter, in turn results in the damage of cutter；2, pelleter
Motor and each roller between by reduction gear-box so that structure is complicated for pelleter, occupied space is big.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of plastic grain cutting machines of no stationary knife, and structure is simple, assembly
Required precision is low, occupies little space, long service life.
In order to solve the above technical problems, the purpose of the present invention is achieved by following technical proposals:
A kind of plastic grain cutting machine of no stationary knife, including rack, rack top are provided with substrate, are provided with blanking on substrate
Mouthful, feed opening is connected with blanking channel, be respectively arranged with bearing block at left and right sides of the feed opening, between bearing block before and after simultaneously
It arranges and is provided with conveying roller and hobboing cutter roller, the rotary shaft of the conveying roller and hobboing cutter roller is threaded through among the bearing of bearing block, is conveyed
It is provided with several axial rectangles first on the outer peripheral surface of roller and is provided with several axial items on slot, the outer peripheral surface of hobboing cutter roller
Shape cutter, the cutter and first run through slot clearance fit, are provided with feeding device and material pressing device above the conveying roller,
Rotation is driven by motor in the conveying roller and hobboing cutter roller.
Idler wheel is provided with below above-mentioned rack.
The cutter groove axially penetrated through is provided on the outer peripheral surface of above-mentioned hobboing cutter roller, the cutter is removably plugged on cutter
In slot, the both ends of hobboing cutter roller are provided with the fixed plate of fixed cutting tool.
The section of above-mentioned cutter is the sharp triangle of isosceles, and bottom surface is plugged in cutter groove, and inserting depth is triangle
Half is high long.
The setting of above-mentioned feeding device in conveying roller front side top, including feedboard and flower roll, feed front edge of board be provided with to
The rotary shaft of the oblique groove of lower bending, flower roll is arranged in oblique groove.
The sub-material groove of several annulars, sub-material recess width and wanted pelletizing are arranged at intervals on the outer peripheral surface of above-mentioned flower roll
The width of plastic strip match.
The specific structure of above-mentioned material pressing device is: the top of the bearing block has been wholely set binder rack respectively, described
Binder rack is tilted backwards to be oppositely arranged, and binder rack medial surface is respectively arranged with sliding rail, and bearing slider, axis are slidably equipped on sliding rail
Holding sliding block is the sliding block that centre is provided with bearing, and nip rolls is provided between binder rack, and nip rolls and conveying roller connect,
The rotary shaft of nip rolls is threaded through among the bearing of bearing slider, and the top of the bearing slider is bolted with spring guiding respectively
Bar, is successively arranged with spring and pressing plate on spring conductor rod, and the upper surface of pressing plate and two springs connects, the swager
The upper surface of frame is provided with end cap, and the pressure apparatus being connected with pressing plate is provided on end cap.
Preferably, the angle of above-mentioned binder rack and bearing block is 45 °, and the angle of the nip rolls and conveying roller is 45 °.
Above-mentioned pressure apparatus is hand gear, including handwheel and the handwheel stud for being fixed on handwheel bottom, handwheel stud spiral shell
It connects in the middle part of end cap, the middle part contact connectio of lower end surface and pressing plate.
Alternatively, above-mentioned pressure apparatus is automatic device, including the cylinder in the middle part of end cap is arranged in, the piston rod of cylinder is passed through
The middle part of end cap and pressing plate connects.
It is fixed with motor base on the substrate of the side of above-mentioned bearing block, motor, the motor are provided on motor base
Output shaft be connected with the rotary shaft of hobboing cutter roller, first gear is fixed in the rotary shaft of the hobboing cutter roller, the conveying axis
Second gear is fixed in rotary shaft, first gear is engaged with second gear.
The other end opposite with second gear is fixed with third gear in the rotary shaft of above-mentioned conveying roller, the nip rolls
It is fixed with the 4th gear with the engagement of third gear in rotary shaft, flywheel can also be installed to increase inertia outside the third gear
Power, above-mentioned fixed form is using key connection.
Several axial rectangles second are provided on the outer peripheral surface of above-mentioned nip rolls through slot, preferably, described second
Size through slot is consistent through slot with first.
Coaming plate is provided with above aforesaid substrate, the component except motor, feeding device, pressure apparatus is arranged at coaming plate
It is interior, openable and closable door is provided on rear side of coaming plate.
Compared to the prior art the present invention, has the following beneficial effects:
1, the present invention does not use stationary knife, is cooperated by conveying roller, nip rolls and hobboing cutter and carries out pelletizing operation, cutter and first
Through slot clearance fit, the first of cutter and conveying roller can assemble between slot there are very big surplus when assembly
Required precision is not high, even and if bearing loosens when in use, will not be interfered between cutter and conveying roller, will not
There is the phenomenon that damage cutter.
2, sub-material groove is provided in the flower roll of feed device of the invention, a sub-material groove accommodates a plastic strip,
More orderly conveying and cutting can be carried out to plastic strip, and flower roll is set up directly in oblique groove, have above oblique groove
The size of opening, the plastic strip cut as needed is different, can replace the flower roll to match at any time.
3, material pressing device of the invention is obliquely installed, compared with the prior art in be vertically arranged so that binder point with cut
The distance of cutpoint is substantially reduced, and binder effect is more preferable, is more advantageous to pelleter and is cut into that size is uniform, the plastics of good appearance
Grain.
4, reduction gear box is not used, greatly by being driven between gear between motor of the invention and hobboing cutter roller, conveying roller
The volume for reducing pelleter greatly can replace suitable gear according to required transmission ratio at any time.
5, cutter of the invention is plugged into the cutter groove of hobboing cutter roller, is then fixed using fixed plate, and fixed plate is removable
It unloads, after a certain tool damage, only damage cutter can be replaced, without being replaced to entire hobboing cutter.
6, different from using stationary knife and hobboing cutter to cooperate the mode of pelletizing in the prior art, cutter of the present invention and first run through slot
The mode of cooperation pelletizing is a kind of shearing rather than the direct mode cut off by force, therefore operation is gentle when the invention works, machine
Device noise is small.
7, binder roller surface in the prior art is smooth, and the plastic strip entered when in use is rolled into one by binder sometimes
A plate, in turn results in even stuck situation of skidding, and the present invention after slot, is avoided in the surface of nip rolls setting second
Machine skids and stuck situation.
Detailed description of the invention
Fig. 1 is perspective view of the invention；
Fig. 2 is the left view after present invention removal rack and coaming plate；
Fig. 3 is the perspective view after present invention removal rack and coaming plate；
Fig. 4 is the perspective view of another angle after present invention removal rack and coaming plate；
Fig. 5 is the structure chart inside the present invention；
Fig. 6 is the main view of feed device of the present invention；
Fig. 7 is the perspective view of hobboing cutter of the present invention；
Fig. 8 is the perspective view of another structure of the present invention；
Fig. 9 is enlarged drawing at A in Fig. 8.
Appended drawing reference: 1, rack；2, substrate；3, coaming plate；4, feed opening；5, blanking channel；6, bearing block；7, conveying roller；
8, hobboing cutter roller；9, first runs through slot；10, cutter；11, motor；12, fixed plate；13, feedboard；14, flower roll；15, oblique groove；
16, sub-material groove；17, binder rack；18, sliding rail；19, bearing slider；20, nip rolls；21, spring conductor rod；22, spring；
23, pressing plate；24, end cap；25, handwheel；26, handwheel stud；27, motor base；28, first gear；29, second gear；30,
Three gears；31, the 4th gear；32, second runs through slot；33, door；34, flywheel.
Specific embodiment
With specific embodiment, the invention will be further described with reference to the accompanying drawing, referring to Fig. 1-7:
A kind of plastic grain cutting machine of no stationary knife, including rack 1 are provided with substrate 2 above rack 1, are provided with down on substrate 2
Material mouth 4, feed opening 4 are connected with blanking channel 5, and the left and right sides of the feed opening 4 is respectively arranged with bearing block 6, bearing block 6 it
Between front and back be arranged side by side and have a conveying roller 7 and hobboing cutter roller 8, the rotary shaft of the conveying roller 7 and hobboing cutter roller 8 is threaded through bearing block 6
Among bearing, it is provided with several axial rectangles first on the outer peripheral surface of conveying roller 7 and is set on slot 9, the outer peripheral surface of hobboing cutter roller 8
Several axial bar shaped cutters 10 are equipped with, the cutter 10 and first runs through 9 clearance fit of slot, and the top of the conveying roller 7 is set
It is equipped with feeding device and material pressing device, the conveying roller 7 and hobboing cutter roller 8 are driven by motor 11 to be rotated.
When work, the plastic strip of preceding working procedure production is entered by feeding device, is forwarded by conveying roller 7, binder dress
It sets and clamps material jointly with conveying roller 7, with the rotation of hobboing cutter roller 8, cutter 10 will be between conveying roller 7 and cutter 10
Material is cut into plastic pellet.
Mobile in order to facilitate pelleter, the lower section of above-mentioned rack 1 is provided with idler wheel.
The cutter groove axially penetrated through is provided on the outer peripheral surface of above-mentioned hobboing cutter roller 8, the cutter 10 is removably plugged on
In cutter groove, the both ends of hobboing cutter roller 8 are provided with the fixed plate 12 of fixed cutting tool 10.When there is the damage of certain cutter 10, can tear open
Bottom plate 12, extraction damage cutter 10 are individually replaced.
Preferably, the section of above-mentioned cutter 10 is the sharp triangle of isosceles, and bottom surface is plugged in cutter groove, and inserting depth is
The half of triangle is high long.
Above-mentioned feeding device is arranged in 7 front side top of conveying roller, including feedboard 13 and flower roll 14, and 13 front end of feedboard is set
It is equipped with the oblique groove 15 bent downward, the rotary shaft of flower roll 14 is arranged in oblique groove 15.
The sub-material groove 16 of several annulars, 16 width of sub-material groove and institute are arranged at intervals on the outer peripheral surface of above-mentioned flower roll 14
The width of the plastic strip of pelletizing is wanted to match.
When charging, the corresponding sub-material groove 16 of every plastic strip, plastic strip can be carried out more orderly conveying and
Cutting, and flower roll 14 is set up directly in oblique groove 15, there is opening above oblique groove 15, the plastic strip cut as needed
Size is different, can replace the flower roll 14 to match at any time.
The specific structure of above-mentioned material pressing device is: the top of the bearing block 6 has been wholely set binder rack 17, institute respectively
State that binder rack 17 is tilted backwards to be oppositely arranged, 17 medial surface of binder rack is respectively arranged with sliding rail 18, is slidably equipped on sliding rail 18
Bearing slider 19, bearing slider 19 are the sliding block that centre is provided with bearing, are provided with nip rolls 20, binder between binder rack 17
Roller 20 and conveying roller 7 connect, and the rotary shaft of nip rolls 20 is threaded through among the bearing of bearing slider 19, the bearing slider
19 top is bolted with spring conductor rod 21 respectively, and spring 22 and pressing plate 23, pressing plate 23 are successively arranged on spring conductor rod 21
It is connected with the upper surface of two springs 22, the upper surface of the binder rack 17 is provided with end cap 24, is arranged on end cap 24
There is the pressure apparatus being connected with pressing plate 23.
The elastic of spring 22 can be adjusted, and then be adjusted between nip rolls 20 and conveying roller 7 by pressure apparatus
Adaptation elasticity, to meet the material requirement of different size.Pressure apparatus is obliquely installed, so that binder point and cut point
Distance is substantially reduced, and binder effect is more preferable, is more advantageous to pelleter and is cut into that size is uniform, the plastic pellet of good appearance.
Preferably, the angle of above-mentioned binder rack 17 and bearing block 6 is 45 °, the angle of the nip rolls 20 and conveying roller 7
It is 45 °.
Above-mentioned pressure apparatus is hand gear, including handwheel 25 and the handwheel stud 26 for being fixed on 25 bottom of handwheel, handwheel
Stud 26 is screwed onto the middle part of end cap 24, and the middle part of lower end surface and pressing plate 23 connects, and when adjusting, rotation hand wheel 25 makes
26 upper and lower displacement of handwheel stud, and then upper and lower displacement occurs with dynamic pressure plate 23 and spring 22.
Alternatively, above-mentioned pressure apparatus is automatic device, the cylinder (being not drawn into attached drawing) including 24 middle part of end cap is arranged in,
The piston rod of cylinder passes through end cap 24 and the middle part of pressing plate 23 connects, the telescopic band dynamic pressure plate 23 and spring of cylinder piston rod
22 occur upper and lower displacement.
It is fixed with motor base 27 on the substrate 2 of the side of above-mentioned bearing block 6, motor 11 is provided on motor base 27,
The output shaft of the motor 11 is connected with the rotary shaft of hobboing cutter roller 8, is fixed with first gear in the rotary shaft of the hobboing cutter roller 8
28, second gear 29 is fixed in the rotary shaft of the conveying roller 7, and first gear 28 is engaged with second gear 29, above-mentioned fixation
Mode is using key connection.
By adjusting the transmission ratio of first gear 28 and second gear 29, i.e., the length of the controllable plastic pellet being cut into,
The material that different size can also be adapted to cuts out required plastic pellet.
In order to cooperate different transmission ratios, above-mentioned first is greater than the quantity of cutter 10 through the quantity of slot 9.
Comparative diagram 8 and Fig. 9, nip rolls 20 of the invention can also be by gear drive, mode: above-mentioned conveying roller 7
Rotary shaft on the other end opposite with second gear 29 be fixed with third gear 30, it is fixed in the rotary shaft of the nip rolls 20
There is the 4th gear 31 engaged with third gear 30, flywheel 34 can also be installed to increase inertia force outside the third gear 30.
In order to prevent in pelletizing machine skid and it is stuck, several axial rectangles are provided on the outer peripheral surface of nip rolls 20
Second runs through slot 32, preferably, described second is consistent through slot 9 through the size of slot 32 and first
The top of aforesaid substrate 2 is provided with coaming plate 3, and the component except motor 11, feeding device, pressure apparatus is arranged at
In coaming plate 3, the rear side of coaming plate 3 is provided with openable and closable door 33.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore: it is all according to
The equivalence changes that structure of the invention, shape, principle are done, should all be covered by within protection scope of the present invention.
Claims (10)
1. a kind of plastic grain cutting machine of no stationary knife, including rack (1), rack (1) top is provided with substrate (2), and substrate is set on (2)
It is equipped with feed opening (4), feed opening (4) is connected with blanking channel (5), which is characterized in that the left and right sides of the feed opening (4) point
It is not provided with bearing block (6), front and back, which is arranged side by side, between bearing block (6) conveying roller (7) and hobboing cutter roller (8), the conveying roller
(7) it is threaded through in the bearing of bearing block (6) with the rotary shaft of hobboing cutter roller (8), is provided with several axis on the outer peripheral surface of conveying roller (7)
To rectangle first run through slot (9), be provided with several axial bar shaped cutters (10), the knife on the outer peripheral surface of hobboing cutter roller (8)
Have (10) and run through slot (9) clearance fit with first, is provided with feeding device and material pressing device above the conveying roller (7), institute
It states conveying roller (7) and hobboing cutter roller (8) and is driven by motor (11) and rotated.
2. a kind of plastic grain cutting machine of no stationary knife according to claim 1, which is characterized in that outside the hobboing cutter roller (8)
The cutter groove axially penetrated through is provided on circumferential surface, the cutter (10) is removably plugged in cutter groove, and the two of hobboing cutter roller (8)
End is provided with the fixed plate (12) of fixed cutting tool (10).
3. a kind of plastic grain cutting machine of no stationary knife according to claim 1, which is characterized in that the feeding device setting exists
Conveying roller (7) front side top, including feedboard (13) and flower roll (14), feedboard (13) front end be provided with bend downward it is oblique recessed
Slot (15), the rotary shaft of flower roll (14) are arranged in oblique groove (15), the flower roll (14) if outer peripheral surface on be arranged at intervals with
Do the sub-material groove (16) of annular.
4. a kind of plastic grain cutting machine of no stationary knife according to claim 1, which is characterized in that the material pressing device it is specific
Structure is: the top of the bearing block (6) has been wholely set binder rack (17) respectively, and the binder rack (17) is tilted backwards
It is oppositely arranged, binder rack (17) medial surface is respectively arranged with sliding rail (18), is slidably equipped on sliding rail (18) bearing slider (19), is pressed
It is provided with nip rolls (20) between material rack (17), nip rolls (20) and conveying roller (7) connect, the rotation of nip rolls (20)
Axis is threaded through among the bearing of bearing slider (19), and the top of the bearing slider (19) is bolted with spring conductor rod respectively
(21), spring (22) and pressing plate (23) are successively arranged on spring conductor rod (21), the upper surface of the binder rack (17) is set
It is equipped with end cap (24), the pressure apparatus being connected with pressing plate (23) is provided on end cap (24).
5. a kind of plastic grain cutting machine of no stationary knife according to claim 4, which is characterized in that the binder rack (17) and
The angle of bearing block (6) is 45 °, and the angle of the nip rolls (20) and conveying roller (7) is 45 °.
6. a kind of plastic grain cutting machine of no stationary knife according to claim 4, which is characterized in that the pressure apparatus is manual
Device including handwheel (25) and is fixed on the handwheel stud (26) of handwheel bottom, and handwheel stud (26) is screwed onto end cap (24)
Middle part, the middle part contact connectio of lower end surface and pressing plate (23)；
Alternatively, the pressure apparatus is automatic device, including the cylinder being arranged in the middle part of end cap (24), the piston rod of cylinder is passed through
The middle part of end cap (24) and pressing plate (23) connects.
7. a kind of plastic grain cutting machine of no stationary knife according to claim 4, which is characterized in that the one of the bearing block (6)
It is fixed with motor base (27), is provided on motor base (27) motor (11) on the substrate of side, the output of the motor (11)
Axis is connected with the rotary shaft of hobboing cutter roller (8), is fixed with first gear (28), the conveying in the rotary shaft of the hobboing cutter roller (8)
It is fixed in the rotary shaft of roller (7) second gear (29), first gear (28) is engaged with second gear (29).
8. a kind of plastic grain cutting machine of no stationary knife according to claim 8, which is characterized in that the rotation of the conveying roller (7)
The other end opposite with second gear (29) is fixed with third gear (30) in shaft, solid in the rotary shaft of the nip rolls (20)
Surely there is the 4th gear (31) with third gear (30) engagement.
9. a kind of plastic grain cutting machine of no stationary knife according to claim 4, which is characterized in that outside the nip rolls (20)
Several axial rectangles second are provided on circumferential surface through slot (32).
10. a kind of plastic grain cutting machine of no stationary knife according to claim 1, which is characterized in that the top of the substrate (2)
It is provided with coaming plate (3), the component except motor (11), feeding device, pressure apparatus is arranged in coaming plate (3), coaming plate (3)
Rear side is provided with openable and closable door (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811055946.2A CN109049392A (en) | 2018-09-11 | 2018-09-11 | A kind of plastic grain cutting machine of no stationary knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811055946.2A CN109049392A (en) | 2018-09-11 | 2018-09-11 | A kind of plastic grain cutting machine of no stationary knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109049392A true CN109049392A (en) | 2018-12-21 |
Family
ID=64761271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811055946.2A Pending CN109049392A (en) | 2018-09-11 | 2018-09-11 | A kind of plastic grain cutting machine of no stationary knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109049392A (en) |
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Application publication date: 20181221 |