CN209631899U - Press machine - Google Patents
Press machine Download PDFInfo
- Publication number
- CN209631899U CN209631899U CN201920187352.0U CN201920187352U CN209631899U CN 209631899 U CN209631899 U CN 209631899U CN 201920187352 U CN201920187352 U CN 201920187352U CN 209631899 U CN209631899 U CN 209631899U
- Authority
- CN
- China
- Prior art keywords
- roll wheel
- steel plate
- mold
- fixing seat
- rack
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 69
- 239000010959 steel Substances 0.000 claims abstract description 69
- 238000003825 pressing Methods 0.000 claims description 24
- 239000007787 solid Substances 0.000 claims description 4
- 230000002459 sustained effect Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Landscapes
- Press Drives And Press Lines (AREA)
Abstract
The utility model relates to a kind of press machines, it includes rack and mold, formed punch is provided with above mold, die horizontal is fixed on the rack, there is support frame in the side of the rack, for placing steel plate on support frame, the direction horizontal extension to mold of steel plate, the side of the steel plate is provided with conveying device, conveying device includes upper roll wheel and lower roll wheel, upper roll wheel and lower roll wheel are oppositely arranged on the two sides of steel plate, the pivot center of upper roll wheel and lower roll wheel is horizontally and perpendicularly to the length direction of steel plate, lower roll wheel is connected with driving device, the upper roll wheel is connected with upper saddle, upper saddle is slidably connected with slideway, slideway is vertically arranged, vertical screw rod is rotatably connected on the upper saddle, the upper end of the slideway is fixedly installed fixed block, screw flight is connected to fixed block.The utility model, which has, carries out continuous punching to long steel plate automatically, reduces the effect of the labor intensity of staff.
Description
Technical field
The utility model relates to a kind of technical fields of steel plate punched equipment, more particularly, to a kind of press machine.
Background technique
Press machine is by motor drive flywheel, and by clutch, transmission gear drives crank link mechanism to make to slide
Block moves up and down, and drives drawing die to steel plate forming.
A kind of press machine, including motor and formed punch list are disclosed in the patent document that Authorization Notice No. is CN202130011U
Train of reduction gears is arranged between member to be driven, train of reduction gears is equipped with laborsaving connecting rod, and laborsaving connecting rod can amplify motor
Output torque drive punch units again, enable the utility model reduce motor output torque, and then reduce motor production
Cost improves the service life of motor, and can save the energy and increase economic benefit.
But in such structure, on long steel plate carry out process in, need staff lift steel plate into
Row processing, large labor intensity.
Utility model content
The purpose of the utility model is to provide a kind of press machines, have and carry out continuous punching to long steel plate automatically, reduce
The effect of the labor intensity of staff.
The foregoing invention purpose of the utility model has the technical scheme that
A kind of press machine, including rack and mold are provided with formed punch above mold, and die horizontal is fixed on the rack,
There is support frame in the side of the rack, is used to place steel plate, the direction horizontal extension to mold of steel plate, the steel on support frame
The side of plate is provided with conveying device, and conveying device includes upper roll wheel and lower roll wheel, and upper roll wheel and lower roll wheel are oppositely arranged on steel
The pivot center of the two sides of plate, upper roll wheel and lower roll wheel is horizontally and perpendicularly to the length direction of steel plate, and lower roll wheel is connected with driving
Device, the upper roll wheel are connected with upper saddle, and upper saddle is slidably connected with slideway, and slideway is vertically arranged, the upper saddle
On be rotatably connected to vertical screw rod, the upper end of the slideway is fixedly installed fixed block, and screw flight is connected to fixed block.
By using above-mentioned technical proposal, in use, upper roll wheel and the lower roll wheel two sides setting up and down in steel plate respectively, under
Roller is connected with driving device, and driving device can be rotated with lower roll wheel, and upper roll wheel passes through the threaded connection of screw rod and fixed block,
Make screw rod with upper saddle, upper saddle is squeezed with upper roll wheel to the direction of lower roll wheel, and so that upper roll wheel and lower roll wheel is clipped steel plate,
To make steel plate translate under the action of upper roll wheel and lower roll wheel along the length direction of steel plate, and then connect under the action of formed punch
Continuous punching press, reduces the labor intensity of staff.
The utility model is further arranged to: the driving device includes worm gear, worm screw and driving motor, and worm screw is coaxially solid
It is scheduled on the delivery end of driving motor, driving motor is fixed on the rack, and worm gear is coaxially fixed on lower roll wheel, and worm and wheel is nibbled
It closes.
By using above-mentioned technical proposal, when driving motor is rotated with worm screw, worm screw rotates with worm gear, to make snail
Wheel is rotated with lower roll wheel, completes the conveying to steel plate.
The utility model is further arranged to: lower slider is provided on the lower roll wheel, lower slider is slidably connected at slideway
It is interior, spring is provided with below the lower slider, spring upper end is connected on lower slider, and lower end abuts on the rack.
By using above-mentioned technical proposal, spring abuts lower slider, and under the force of a spring, lower roll wheel can
Steel plate is squeezed, and will not influence driving of the worm screw to worm gear, and when lower section of the steel plate in formed punch, lower roll wheel with
The driving force of steel plate is related by the normal pressure that spring provides, and so as to press against on steel plate in formed punch, lower roll wheel can be in steel plate
Surface pivots.
The utility model is further arranged to: support frame as described above includes frame body and two conveying rollers disposed in parallel, conveying
For the axis of roller perpendicular to the length direction of steel plate, two conveying rollers are in the lower surface that sustained height is supported on steel plate.
By using above-mentioned technical proposal, on frame body setting there are two parallel conveying roller, steel plate can ride over two it is defeated
It send on roller, keeps support frame more convenient to the conveying of steel plate.
The utility model is further arranged to: positioning device is provided on the frame body, there are two positioning devices and difference
The two sides of steel plate are fixed on, positioning device includes adjusting rod and handwheel, and adjusting rod is threaded on carriage, and adjusting rod is horizontal
And perpendicular to the length direction of steel plate, handwheel is fixed on the one end of adjusting rod far from steel plate.
By using above-mentioned technical proposal, positioning device is set in the two sides of steel plate, by rotation hand wheel, handwheel is with tune
The end of the rotation of pole end, adjusting rod is kept off in the side of steel plate, to make steel plate control between two positioning devices, is prevented
Steel plate deviates during transportation.
The utility model is further arranged to: fixing seat is arranged in the lower section of the mold, and mold is fixed on by fixing seat
In rack, the upper surface of the fixing seat is square, and the upper surface of fixing seat is opened up there are four sliding slot, and four sliding slots are along solid
The diagonal of reservation upper surface opens up, and the mold is located at fixing seat upper surface diagonal line intersection location, the mold
Circumferentially distributed there are four connection component, four connection components are located in four sliding slots, and mold can by four connection components
Dismantling connection is in fixing seat.
By using above-mentioned technical proposal, the upper surface of fixing seat is square, by being distributed in fixing seat at four
Mold is fixed in the connection component in sliding slot on surface diagonal, due to the position of stamping position and formed punch in punching course
The center of being maintained at is set, so that fixing seat be made to be easier the positioning of mold.
The utility model is further arranged to: the connection component includes sliding block, stud, nut and pressing plate, and sliding slot is T-type
Slot, sliding block are slidably fitted in sliding slot, and stud is fixed on sliding block vertically, and the upper end of stud stretches out sliding slot and runs through pressing plate, spiral shell
Box thread is connected on stud, and nut is located at the top of pressing plate, clips between the lower surface of pressing plate and the upper surface of fixing seat
Mold.
By using above-mentioned technical proposal, sliding block is slidably connected in sliding slot, and stud can move in sliding slot with sliding block,
So that pressing plate is moved to the position of mold, be connected on stud by nut thread, so that pressing plate be made to press against mold.
The utility model is further arranged to: cushion block is provided with below the pressing plate, cushion block and mold are arranged in stud
Opposite two sides, cushion block are clipped between the upper surface of fixing seat and the lower surface of pressing plate.
By using above-mentioned technical proposal, cushion block is arranged in the lower section of pressing plate, and the two sides of pressing plate is made to press against mold and pad respectively
Block prevents pressing plate from tilting when making extruding of the pressing plate to mold.
In conclusion the advantageous effects of the utility model are as follows:
1. the two sides setting up and down in steel plate, lower roll wheel are connected with driving device respectively with lower roll wheel by upper roll wheel, drive
Dynamic device can be rotated with lower roll wheel, and upper roll wheel passes through the threaded connection of screw rod and fixed block, make screw rod with upper saddle, upper cunning
Seat is squeezed with upper roll wheel to the direction of lower roll wheel, makes upper roll wheel and lower roll wheel clips steel plate, thus make steel plate upper roll wheel with
It is translated under the action of lower roll wheel along the length direction of steel plate, and then continuous punching under the action of formed punch, reduces staff
Labor intensity；
2. being abutted by spring to lower slider, and under the force of a spring, lower roll wheel can squeeze steel plate,
And it will not influence driving of the worm screw to worm gear；
3. the upper surface by fixing seat is square, by being distributed on the diagonal line of fixing seat upper surface at four
Mold is fixed in connection component in sliding slot, since the position of stamping position and formed punch is maintained at center in punching course,
To make fixing seat be easier the positioning of mold.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the partial enlargement diagram of part A in Fig. 1；
Fig. 3 is the structural schematic diagram of conveying device.
In figure, 1, rack；2, fixing seat；21, sliding slot；3, mold；4, steel plate；5, formed punch；6, connection component；61, sliding block；
62, stud；63, nut；64, pressing plate；65, cushion block；7, support frame；71, frame body；72, conveying roller；8, positioning device；81, it adjusts
Bar；82, handwheel；9, conveying device；91, upper roll wheel；92, lower roll wheel；93, upper saddle；94, lower slider；95, spring；96, sliding
Road；97, fixed block；98, screw rod；10, driving device；101, worm gear；102, worm screw；103, driving motor.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It is a kind of press machine disclosed by the utility model with reference to Fig. 1, including rack 1,1 level of rack are fixedly installed
Reservation 2, the upper surface of fixing seat 2 are equipped with horizontal mold 3, and mold 3 is detachably connected in fixing seat 2, different molds 3
Correspondence is different to be stamped and formed out, in the upper surface of mold 3 for placing steel plate 4, the top of steel plate 4 and the position of 3 face of mold
It is provided with the formed punch 5 to pump, formed punch 5 and mold 3 cooperate, it is made to cut out plate-type structural piece to steel plate 4.
With reference to Fig. 1, the upper surface of fixing seat 2 is square, and mold 3 is placed on the position at the upper surface center of fixing seat 2,
Four sliding slots 21 are offered along the upper surface of fixing seat 2 in the upper surface of fixing seat 2, four sliding slots 21 are evenly distributed on mold
In 3 circumferential direction, sliding slot 21 is T-slot, and connection component 6, a corresponding connection component in each sliding slot 21 are provided in sliding slot 21
6, fixing seat 2 is detachably connected in fixing seat 2 by connection component 6.
With reference to Fig. 2, connection component 6 includes sliding block 61, stud 62, nut 63, pressing plate 64 and cushion block 65, and the sliding of sliding block 61 is matched
The bottom of sliding slot 21 is closed in sliding slot 21 and is in, stud 62 is fixed on vertically on sliding block 61, and the upper end of stud 62 is from sliding slot 21
Opening stretch out sliding slot 21, the upper end of stud 62 extends upward through pressing plate 64, and nut 63 is threaded in the upper end of stud 62, and
Nut 63 is located at the top of pressing plate 64, cushion block 65 and 3 sustained height of mold, and it is opposite that with mold 3 stud 62 is arranged in cushion block 65
Two sides clip mold 3 and cushion block 65 between the lower surface of pressing plate 64 and the upper surface of fixing seat 2 simultaneously.By nut 63 along
Stud 62 moves down, to keep pressing plate 64 fixed to mold 3.
With reference to Fig. 1 and Fig. 3, rack 1 is provided with support frame 7 on the right side of rack 1, support frame 7 includes 71 He of frame body
Two parallel conveying rollers 72, conveying roller 72 are horizontally and perpendicularly to the length direction of steel plate 4, and two conveying rollers 72 are located at frame body
Height on 71 is identical, and 72 revolving support of conveying roller is on frame body 71, when steel plate 4 is lain in a horizontal plane on two conveying rollers 72,
Staff more easily can push steel plate 4 along the length direction of steel plate 4.Positioning device 8 is provided on frame body 71,
There are two positioning devices 8 and is separately fixed at the two sides of steel plate 4, and positioning device 8 includes adjusting rod 81 and handwheel 82, adjusting rod 81
It is threaded on carriage, adjusting rod 81 is horizontally and perpendicularly to the length direction of steel plate 4, and it is remote that handwheel 82 is fixed on adjusting rod 81
One end from steel plate 4.
With reference to Fig. 3, conveying device 9 is installed in rack 1, conveying device 9 is located at the side of steel plate 4, and conveying device 9 is right
Steel plate 4 is conveyed, so that steel plate 4 be enable to carry out continuous punching press on mold 3.9 upper roll wheel 91 of conveying device and lower roll
Wheel 92, upper roll wheel 91 and lower roll wheel 92 are oppositely arranged on the upper and lower surface of steel plate 4, the pivot center of upper roll wheel 91 and lower roll wheel 92
It is horizontally and perpendicularly to the length direction of steel plate 4, upper roll wheel 91 is located at the top of lower roll wheel 92, and upper roll wheel 91 is connected with upper saddle
93,91 revolving support of upper roll wheel is connected with lower slider 94,92 revolving support of lower roll wheel is under on upper saddle 93 on lower roll wheel 92
On slide 94, the lower section of lower slider 94 is provided with spring 95, and 95 upper end of spring is connected on lower slider 94, and lower end is connected to rack
On 1, upper saddle 93 is slidably connected with slideway 96, and slideway 96 is fixed at vertically in rack 1, solid in the upper end of slideway 96
Surely it is provided with fixed block 97, vertical screw rod 98 is rotatably connected on upper saddle 93, screw rod 98 is threadedly connected to fixed block 97.Work
When making personnel's rotation screw rod 98, screw rod 98 drives upper saddle 93 to move up and down upward or downward, makes its steel plate 4 to different-thickness
It is clamped.
With reference to Fig. 3, lower roll wheel 92 is connected with driving device 10, and driving device 10 includes worm gear 101, worm screw 102 and driving
Motor 103, worm screw 102 are coaxially fixed on the delivery end of driving motor 103, and driving motor 103 is fixed in rack 1, worm gear 101
It is coaxially fixed on lower roll wheel 92, worm screw 102 engages with worm gear 101.In upper roll wheel 91 downwards or when moving down, worm gear 101
It is rolled along the length direction of worm screw 102, so that worm screw 102 and worm gear 101 are kept in the case where keeping driving motor 103 fixed
The state of engagement.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (8)
1. a kind of press machine, including rack (1) and mold (3), it is provided with formed punch (5) above mold (3), mold (3) is horizontal
It is fixed on rack (1), it is characterised in that: the side of the rack (1) has support frame (7), for placing steel on support frame (7)
The side of plate (4), the direction horizontal extension to mold (3) of steel plate (4), the steel plate (4) is provided with conveying device (9), defeated
Sending device (9) includes upper roll wheel (91) and lower roll wheel (92), and upper roll wheel (91) and lower roll wheel (92) are oppositely arranged on steel plate (4)
The pivot center of two sides, upper roll wheel (91) and lower roll wheel (92) is horizontally and perpendicularly to the length direction of steel plate (4), lower roll wheel (92)
It is connected with driving device (10), the upper roll wheel (91) is connected with upper saddle (93), and upper saddle (93) is slidably connected with cunning
Road (96), slideway (96) are vertically arranged, and are rotatably connected to vertical screw rod (98) on the upper saddle (93), the slideway (96)
Upper end be fixedly installed fixed block (97), screw rod (98) is threadedly connected to fixed block (97).
2. press machine according to claim 1, it is characterised in that: the driving device (10) includes worm gear (101), worm screw
(102) and driving motor (103), worm screw (102) are coaxially fixed on the delivery end of driving motor (103), and driving motor (103) is solid
It is scheduled on rack (1), worm gear (101) is coaxially fixed on lower roll wheel (92), and worm screw (102) engages with worm gear (101).
3. press machine according to claim 2, it is characterised in that: lower slider (94) are provided on the lower roll wheel (92),
Lower slider (94) is slidably connected in slideway (96), is provided with spring (95) below the lower slider (94), on spring (95)
End is connected on lower slider (94), and lower end is connected on rack (1).
4. press machine according to claim 1 to 3, it is characterised in that: support frame as described above (7) include frame body (71) and
Two conveying rollers (72) disposed in parallel, length direction of the axis of conveying roller (72) perpendicular to steel plate (4), two conveying rollers
(72) lower surface of steel plate (4) is supported in sustained height.
5. press machine according to claim 4, it is characterised in that: positioning device (8) are provided on the frame body (71), it is fixed
Position device (8) there are two and be separately fixed at the two sides of steel plate (4), positioning device (8) includes adjusting rod (81) and handwheel (82),
Adjusting rod (81) is threaded on carriage, and adjusting rod (81) is horizontally and perpendicularly to the length direction of steel plate (4), handwheel (82)
It is fixed on the one end of adjusting rod (81) far from steel plate (4).
6. press machine according to claim 1, it is characterised in that: fixing seat (2) are arranged in the lower section of the mold (3), mould
Tool (3) is fixed on rack (1) by fixing seat (2), and the upper surface of the fixing seat (2) is square, fixing seat (2) it is upper
Surface is opened up there are four sliding slot (21), and four sliding slots (21) open up along the diagonal of fixing seat (2) upper surface, the mould
Tool (3) is located at fixing seat (2) upper surface diagonal line intersection location, the mold (3) it is circumferentially distributed there are four connection component
(6), four connection components (6) are located in four sliding slots (21), and mold (3) is detachably connected by four connection components (6)
It connects on fixing seat (2).
7. press machine according to claim 6, it is characterised in that: the connection component (6) includes sliding block (61), stud
(62), nut (63) and pressing plate (64), sliding slot (21) are T-slot, and sliding block (61) is slidably fitted in sliding slot (21), stud (62)
It is fixed on sliding block (61) vertically, the upper end of stud (62) stretches out sliding slot (21) and runs through pressing plate (64), and nut (63) screw thread connects
It connects on stud (62), and nut (63) is located at the top of pressing plate (64), the lower surface of pressing plate (64) and the upper table of fixing seat (2)
Mold (3) are clipped between face.
8. press machine according to claim 7, it is characterised in that: cushion block (65) are provided with below the pressing plate (64),
The two sides opposite in stud (62) are arranged in cushion block (65) and mold (3), and cushion block (65) is clipped in upper surface and the pressing plate of fixing seat (2)
(64) between lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920187352.0U CN209631899U (en) | 2019-02-02 | 2019-02-02 | Press machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920187352.0U CN209631899U (en) | 2019-02-02 | 2019-02-02 | Press machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209631899U true CN209631899U (en) | 2019-11-15 |
Family
ID=68493242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920187352.0U Expired - Fee Related CN209631899U (en) | 2019-02-02 | 2019-02-02 | Press machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209631899U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604426A (en) * | 2020-06-16 | 2020-09-01 | 浙江理工大学 | Automatic replacing device for combined punching machine die |
| CN111922186A (en) * | 2020-10-19 | 2020-11-13 | 吴江市液铸液压件铸造有限公司 | Punching device for processing metal plate |
| CN112170603A (en) * | 2020-09-22 | 2021-01-05 | 安徽地豪科技环保材料有限公司 | Universal die for aluminum plate stamping |
| CN112589707A (en) * | 2020-12-15 | 2021-04-02 | 芜湖科捷铝业科技有限公司 | Door and window aluminium alloy processing frock convenient to adjust |
| CN115430754A (en) * | 2022-11-02 | 2022-12-06 | 创融智能装备江苏有限公司 | Sheet metal forming and stamping equipment |
-
2019
- 2019-02-02 CN CN201920187352.0U patent/CN209631899U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604426A (en) * | 2020-06-16 | 2020-09-01 | 浙江理工大学 | Automatic replacing device for combined punching machine die |
| CN112170603A (en) * | 2020-09-22 | 2021-01-05 | 安徽地豪科技环保材料有限公司 | Universal die for aluminum plate stamping |
| CN111922186A (en) * | 2020-10-19 | 2020-11-13 | 吴江市液铸液压件铸造有限公司 | Punching device for processing metal plate |
| CN112589707A (en) * | 2020-12-15 | 2021-04-02 | 芜湖科捷铝业科技有限公司 | Door and window aluminium alloy processing frock convenient to adjust |
| CN115430754A (en) * | 2022-11-02 | 2022-12-06 | 创融智能装备江苏有限公司 | Sheet metal forming and stamping equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209631899U (en) | Press machine | |
| CN110523836B (en) | Linkage stamping die with rotary self-locking device | |
| CN210450624U (en) | Bending stamping die | |
| CN101575797B (en) | Semi-automatic double-pole umbrella fabric pressure cutting machine | |
| CN111496070A (en) | Electromechanical integrated section punching equipment | |
| CN211888638U (en) | Feeding punching machine | |
| CN109201877A (en) | A kind of rolling profile machine | |
| CN108481432B (en) | Rotary die-cutter laminate pressure regulating device | |
| CN209631898U (en) | A kind of press machine | |
| CN109049965A (en) | A kind of connection cloth coining processing unit (plant) | |
| CN210450497U (en) | Hub bearing stamping equipment | |
| CN208879468U (en) | Sedan-chair transports vehicle antiskid plate automatic punching hemmer | |
| CN214137033U (en) | Multi-station injection molding machine | |
| CN206241014U (en) | A kind of sheet stamping forming machine of underlying driving | |
| CN218252402U (en) | Automobile part punching device | |
| CN212682201U (en) | Punching machine mould convenient to assembly | |
| CN209810992U (en) | Press machine | |
| CN108081164A (en) | Hard grinding wheel production line | |
| CN219378600U (en) | Height-adjustable stamping die carrier | |
| CN206567409U (en) | The feed device of drawer guideway transverse direction progressive die | |
| CN221473302U (en) | Automatic feeder auxiliary fixtures | |
| CN207217285U (en) | A kind of EI pieces cross cut shears | |
| CN206763980U (en) | A kind of steel plate shearing equipment with rotary supporting device | |
| CN211637907U (en) | Stamping device for forging pinion shaft | |
| CN213350914U (en) | Drilling equipment is used in production of one-way feed valve |
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: 20191115 |