CN204801055U - Miniature 3D printer with 35 step motor - Google Patents
Miniature 3D printer with 35 step motor Download PDFInfo
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- CN204801055U CN204801055U CN201520448811.8U CN201520448811U CN204801055U CN 204801055 U CN204801055 U CN 204801055U CN 201520448811 U CN201520448811 U CN 201520448811U CN 204801055 U CN204801055 U CN 204801055U
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Abstract
The utility model discloses a miniature 3D printer with 35 step motor relates to printer technical field. A miniature 3D printer with 35 step motor, including install Y axle 35 step motor and lift 35 step motor on the support frame, X axle 35 step motor, parallel side by side first sharp optical axis and second straight line optical axis and first drive belt and secondary drive area, transmission shaft, third drive belt, spout and expect mechanism, operation panel and trapezoidal lead screw, the first drive belt of Y axle 35 step motor drive rotates, X axle 35 step motor drive third drive belt rotates, and the third drive belt drives to spout expects that the mechanism follows the guide rail and slides, and first drive belt and secondary drive area drive to spout expects that the mechanism follows sharp optical axis and slides, on the operation panel spiral shell fitted trapezoidal lead screw, the trapezoidal lead screw of lift 35 step motor drive rotated. The utility model has the advantages of it adopts 35 step motor, small, light in weight, compact structure, space utilization height.
Description
Technical field
The utility model relates to printer technology field, particularly a kind of miniature 3D printer with 35 stepper motors.
Background technology
3D printer is also known as three-dimensional printer, a kind of accumulation manufacturing technology, i.e. a kind of machine of RP technique, it is based on a kind of mathematical model file, use special wax material, powdery metal or plastics etc. can jointing material, manufacture three-dimensional object by the jointing material printed from level to level.
But existing 3D printer also exists a lot of problem in use, such as:
1, existing 3D printer adopts 42 stepper motors or 57 stepper motors mostly, these motor volumes are bigger than normal, and the profile of large volume is but little stamp with the size, structural design are difficult to stamp with the size is designed into maximization, and whole machine is overweight, carrying is inconvenient.
That 2, existing 3D printer arrangement designs is compact not, wastes a lot of space, and make overall machine profile bigger than normal, integral space utilization ratio is low, causes a lot of wastings of resources.
Utility model content
For solving deficiency of the prior art, the utility model provides a kind of miniature 3D printer with 35 stepper motors, and it adopts 35 stepper motors, and volume is little, lightweight, and convenient carrying, and compact overall structure, integral space utilization ratio is high.
The utility model for achieving the above object, be achieved through the following technical solutions: a kind of miniature 3D printer with 35 stepper motors, comprise and be arranged on Y-axis 35 stepper motor on bracing frame and lifting 35 stepper motors, X-axis 35 stepper motor, parallel the first straight optical axis side by side and the second straight optical axis, parallel the first driving-belt side by side and the second driving-belt, power transmission shaft for link the first driving-belt and the second driving-belt, the 3rd driving-belt, material spray mechanism, operating desk and trapezoidal screw;
Described first driving-belt, power transmission shaft, the U-shaped shape of the second driving-belt distribute and are rotatably connected on bracing frame, and described Y-axis 35 driving stepper motor first driving-belt rotates;
Described first straight optical axis and the first driving-belt are positioned at the same side, described second straight optical axis and the second driving-belt are positioned at the same side, described 3rd driving-belt two ends are arranged between the first driving-belt and the second driving-belt by fixture, described first driving-belt and the second driving-belt drive the 3rd driving-belt to slide along the first straight optical axis and the second straight optical axis by fixture, between fixture, guide rail is set, described material spray mechanism is slidably arranged on guide rail, described X-axis 35 stepper motor can slide along the second straight optical axis, described X-axis 35 driving stepper motor the 3rd driving-belt rotates, described 3rd driving-belt drives material spray mechanism along slide, described first driving-belt and the second driving-belt drive material spray mechanism to slide along the first straight optical axis and the second straight optical axis,
Described operating desk to be positioned at below material spray mechanism and to be screwed together on described trapezoidal screw, and trapezoidal screw described in described lifting 35 driving stepper motor rotates to drive described operating desk to move along described trapezoidal screw towards or away from material spray mechanism.
Described operating desk comprises slide, print platform, and described slide and one end and trapezoidal screw are slidably connected, and described slide both sides arrange chute, and described print platform can be located in chute by pull.
Described fixture comprises the first holder and the second holder, described first holder to be slidably arranged on the first straight optical axis and to be fixedly connected with the first driving-belt, described first holder arranges the first synchronous pulley, described second holder to be slidably arranged on the second straight optical axis and to be fixedly connected with the second driving-belt, described second holder arranges the second synchronous pulley, described 3rd drive belt ring is around on the first synchronous pulley and the second synchronous pulley, described X-axis 35 stepper motor is arranged on the second holder, described X-axis 35 stepper motor output shaft is connected with the second synchronous pulley, described guide rail two ends are separately fixed on the first holder and the second holder.
Also comprise the 3rd straight optical axis that at least one and described trapezoidal screw be arranged in parallel, described operating desk slides and is located on described 3rd straight optical axis.
Contrast prior art, the beneficial effects of the utility model are:
1, in this device, showerhead electrode in X-axis drive motors, Y-axis drive motors, lifting motor, material spray mechanism all adopts 35 stepper motors, 35 stepper motors have little, the lightweight advantage of volume, make the overall volume of this device diminish, alleviate overall weight, convenient carrying; In addition, Y-axis 35 stepper motor Direct driver driving-belt drives material spray mechanism to move in the Y-axis direction, saves space; Further, X-axis 35 stepper motor follows the second drive belt slip by the second holder, and without any interference space, allow out the space of Y direction when seesawing, compact conformation, integral space utilization ratio is high; Utilize trapezoidal screw height space, design circuit element, make this device integral space utilization ratio higher.
2, in this device, print platform can be arranged by pull, avoids before printing and regulates platform, flexible and convenient to use.
3, in this device, the 3rd straight optical axis be arranged in parallel with trapezoidal screw, adds operating desk along trapezoidal screw towards or away from the stability in material spray mechanism moving process.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model structural representation; Accompanying drawing 2 is that explosive view is installed by the utility model material spray mechanism; Accompanying drawing 3 is that explosive view installed by the utility model Y-axis 35 stepper motor; Accompanying drawing 4 is that explosive view installed by the utility model X-axis 35 stepper motor; Accompanying drawing 5 is that the utility model is elevated 35 stepper motors installation explosive views.
Label shown in accompanying drawing: 1, Y-axis 35 stepper motor; 2,35 stepper motors are elevated; 3, X-axis 35 stepper motor; 4, the first straight optical axis; 41, the first linear bearing; 5, the second straight optical axis; 51, the second linear bearing; 6, the first driving-belt; 61, the 3rd synchronous driving pulley; 62, the 3rd synchronous driven pulley; 7, the second driving-belt; 71, the 4th synchronous driving pulley; 72, the 4th synchronous driven pulley; 8, power transmission shaft; 9, the 3rd driving-belt; 10, material spray mechanism; 101, shower nozzle holder; 102, showerhead electrode; 103, wire feed box; 104, large aluminium block; 105, fan; 106, trunnion; 107, heated aluminum block; 108, nozzle; 11, operating desk; 111, slide; 112, print platform; 113, chute; 114, shaft coupling; 115, copper nut; 116, the 3rd linear bearing; 117, lower fixed seat; 118, upper fixed seat; 12, trapezoidal screw; 13, the first holder; 14, the second holder; 15, the first synchronous pulley; 16, the second synchronous pulley; 17, guide rail; 171, slide block; 18, the 3rd straight optical axis.
Detailed description of the invention
By reference to the accompanying drawings and specific embodiment, the utility model is described in further detail.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction.
There is a miniature 3D printer for 35 stepper motors, comprise and be arranged on Y-axis 35 stepper motor on bracing frame 1 and lifting 35 stepper motors 2.Bracing frame does not provide in FIG.X-axis 35 stepper motor 3, parallel the first straight optical axis 4 side by side and the second straight optical axis 5, parallel the first driving-belt 6 side by side and the second driving-belt 7, power transmission shaft 8 for link the first driving-belt 6 and the second driving-belt 7, the 3rd driving-belt 9, material spray mechanism 10, operating desk 11 and trapezoidal screw 12.
Described first driving-belt 6, the U-shaped shape of power transmission shaft 8, second driving-belt 7 distribute and are rotatably connected on bracing frame, and described Y-axis 35 stepper motor 1 drives the first driving-belt 6 to rotate.Bracing frame side is rotatably arranged the 3rd synchronous driving pulley 61 and the 3rd synchronous driven pulley 62, first driving-belt 6 is looped around on the 3rd synchronous driving pulley 61 and the 3rd synchronous driven pulley 62, Y-axis 35 stepper motor driving pulley 61 synchronous with the 3rd is fixedly connected with, bracing frame opposite side is rotatably arranged the 4th synchronous driving pulley 71 and the 4th synchronous driven pulley 72, second driving-belt 7 is looped around on the 4th synchronous driving pulley 71 and the 4th synchronous driven pulley 72, power transmission shaft 8 two end respectively driven pulley 62 synchronous with the 3rd is fixedly connected with the 4th synchronous driving pulley 71, Y-axis 35 stepper motor 1 rotates the synchronous driving pulley 61 of drive the 3rd and rotates, 3rd synchronous driving pulley 61 drives the first driving-belt 6 to rotate, first driving-belt 6 drives the 3rd synchronous driven pulley 62 to rotate, 3rd synchronous driven pulley 62 drives power transmission shaft 8 to rotate, power transmission shaft 8 drives the 4th synchronous driving pulley 71 to rotate, 4th synchronous driving pulley 71 drives the second driving-belt 7 to rotate.Described first straight optical axis 4 and the first driving-belt 6 are positioned at the same side, and described second straight optical axis 5 and the second driving-belt 7 are positioned at the same side, and the first straight optical axis 4 two ends and the second straight optical axis 5 two ends are installed on bracing frame.Described 3rd driving-belt 9 is arranged between the first driving-belt 6 and the second driving-belt 7 by fixture, and described first driving-belt 6 and the second driving-belt 7 drive the 3rd driving-belt 9 to slide along the first straight optical axis 4 and the second straight optical axis 5 by fixture.Arrange guide rail 17 between fixture, described material spray mechanism 10 is slidably arranged on guide rail 17, and guide rail 17 adopts miniature line slideway, and rigidity is strong and save whole device space.Described X-axis 35 stepper motor 3 can slide along the second straight optical axis 5, described X-axis 35 stepper motor 3 drives the 3rd driving-belt 9 to rotate, described 3rd driving-belt 9 drives material spray mechanism 10 to slide along guide rail 17, and described first driving-belt 6 and the second driving-belt 7 drive material spray mechanism 10 to slide along the first straight optical axis 4 and the second straight optical axis 5.Described fixture comprises the first holder 13 and the second holder 14.Described first holder 13 to be slidably arranged on the first straight optical axis 4 and to be fixedly connected with the first driving-belt 6, between first straight optical axis 4 and the first holder 13, first linear bearing 41 is installed, the frictional force between the first holder 13 and the first straight optical axis 4 can be reduced by the first linear bearing 41 arranged, be convenient to the first holder 13 slide along the first straight optical axis 4, first holder 13 is fixedly connected with the first driving-belt 6, makes the first driving-belt 6 drive the first holder 13 to slide along the first straight optical axis 4.Described first holder 13 arranges the first synchronous pulley 15.Described second holder 14 to be slidably arranged on the second straight optical axis 5 and to be fixedly connected with the second driving-belt 7, second holder 14 and the second straight optical axis 5 install the second linear bearing 51, the frictional force between the second holder 14 and the second straight optical axis 5 can be reduced by the second linear bearing 51 arranged, be convenient to the second holder 14 slide along the second straight optical axis 5, second holder 14 is fixedly connected with the second driving-belt 7, makes the second driving-belt 7 drive the second holder 14 to slide along the second straight line 5 optical axis.Described second holder 14 arranges the second synchronous pulley 16, described 3rd driving-belt 9 is looped around on the first synchronous pulley 15 and the second synchronous pulley 16, described X-axis 35 stepper motor 3 is arranged on the second holder 14, X-axis 35 stepper motor follows the second drive belt slip by the second holder, without any interference space, compact conformation, integral space utilization ratio is high.The output shaft of described X-axis 35 stepper motor 3 is connected with the second synchronous pulley 16 through the second holder 14, and X-axis 35 stepper motor 3 rotates drive second synchronous pulley 16 and rotates, and the second synchronous pulley 16 drives the 3rd driving-belt 9 to rotate.X-axis 35 stepper motor 3 also can be fixed on the first holder 13, and X-axis 35 stepper motor 3 output shaft is fixedly connected with the first synchronous pulley 15 simultaneously.Described guide rail 17 two ends are separately fixed on the first holder 13 and the second holder 14, and described guide rail 17 is slidably installed slide block 171.Described material spray mechanism 10 comprises shower nozzle holder 101, described shower nozzle holder 101 to be fixed on the 3rd driving-belt 9 and to be fixedly connected with in slide block 171, above described shower nozzle holder 101, showerhead electrode 102 is set, described showerhead electrode 102 output shaft installs wire feed box 103 and large aluminium block 104, provided with fan 105 on described large aluminium block 104, heated aluminum block 107 is connected by trunnion 106 below described large aluminium block 104, below described heated aluminum block 107, nozzle 108 is set, heated aluminum block may be used for heating the jointing material in material spray mechanism, prevents jointing material from solidifying.
Described operating desk 11 to be positioned at below material spray mechanism 10 and to be screwed together on described trapezoidal screw 12, described lifting 35 stepper motor 2 drives described trapezoidal screw 12 to rotate to drive described operating desk 11 to move along described trapezoidal screw 12 towards or away from material spray mechanism 10, trapezoidal screw can be utilized to utilize height space, design circuit element, makes this device integral space utilization ratio higher.
The utility model in use, Y-axis 35 stepper motor 1 rotates the synchronous driving pulley 61 of drive the 3rd and rotates, 3rd synchronous driving pulley 61 drives the first driving-belt 6 to rotate, first driving-belt 6 drives the 3rd synchronous driven pulley 61 to rotate, drive the first holder 14 to slide along the first straight optical axis 4 simultaneously, 3rd synchronous driven pulley 61 drives power transmission shaft 8 to rotate, power transmission shaft 8 drives the 4th synchronous driving pulley 71 to rotate, 4th synchronous driving pulley 71 drives the second driving-belt 7 to rotate, drive the second holder 14 to slide along the second straight optical axis 5 simultaneously, guide rail 17 between first holder 13 and the second holder 14 makes the first holder 13 and the second holder 14 be synchronized with the movement side by side, first holder 13 and the second holder 14 drive the material spray mechanism 10 on guide rail 17 to slide along the first straight optical axis 4 and the second straight optical axis 5, X-axis 35 stepper motor 3 rotates drive second synchronous pulley 16 and rotates, and the second synchronous pulley 16 drives the 3rd driving-belt 9 to rotate, and the 3rd Timing Belt 9 drives material spray mechanism 10 to slide along guide rail 17, X-axis 35 stepper motor and Y-axis 35 stepper motor drive material spray mechanism precisely to move in two dimensional surface, thus realize the effect printing meticulous stereo article.In addition, be elevated 35 step motor control operating desks and move towards or away from material spray mechanism along trapezoidal screw, material spray mechanism can be printed from low to high to above-mentioned stereo article, realize the effect printing the stereo article of larger height.
Further, described operating desk 11 comprises slide 111, print platform 112, and described slide 111 is slidably connected with one end and trapezoidal screw 12, and described slide 111 both sides arrange chute 113, and described print platform 112 can be located in chute 113 by pull.Be elevated between 35 stepper motor 2 output shafts and trapezoidal screw 12 lower end and connected by shaft coupling 114, copper nut 115 is installed in trapezoidal screw 12 upper end, and copper nut 115 is fixed on slide 111.Print platform can be arranged by pull, avoids before printing and regulates platform, flexible and convenient to use.
Further, also comprise the 3rd straight optical axis 18 that at least one and described trapezoidal screw 12 be arranged in parallel, described operating desk 11 slides and is located on described 3rd straight optical axis 18.Between 3rd straight optical axis 18 and slide 111, the 3rd linear bearing 116 is installed, 3rd linear bearing can reduce the frictional force between operating desk and the 3rd straight optical axis, convenient operation platform slides along the 3rd straight optical axis, be elevated on 35 stepper motors 2 and lower fixed seat 117 is installed, install holder 118 above slide 111, the 3rd straight optical axis 18 two ends are separately fixed on lower fixed seat 117 and upper fixed seat 118.Concrete, the 3rd straight optical axis is two, lays respectively at trapezoidal screw both sides, which increases operating desk along the stability of trapezoidal screw in sliding process.
Claims (4)
1. one kind has the miniature 3D printer of 35 stepper motors, it is characterized in that: comprise and be arranged on Y-axis 35 stepper motor (1) on bracing frame and lifting 35 stepper motors (2), X-axis 35 stepper motor (3), parallel the first straight optical axis (4) side by side and the second straight optical axis (5), parallel the first driving-belt (6) side by side and the second driving-belt (7), for the power transmission shaft (8) of link the first driving-belt (6) and the second driving-belt (7), 3rd driving-belt (9), material spray mechanism (10), operating desk (11) and trapezoidal screw (12),
Described first driving-belt (6), power transmission shaft (8), the second driving-belt (7) U-shaped shape distribute and are rotatably connected on bracing frame, and described Y-axis 35 stepper motor (1) drives the first driving-belt (6) to rotate;
Described first straight optical axis (4) and the first driving-belt (6) are positioned at the same side, described second straight optical axis (5) and the second driving-belt (7) are positioned at the same side, described 3rd driving-belt (9) is arranged between the first driving-belt (6) and the second driving-belt (7) by fixture, described first driving-belt (6) and the second driving-belt (7) drive the 3rd driving-belt (9) to slide along the first straight optical axis (4) and the second straight optical axis (5) by fixture, guide rail (17) is set between fixture, described material spray mechanism (10) is slidably arranged on guide rail (17), described X-axis 35 stepper motor (3) can be slided along the second straight optical axis (5), described X-axis 35 stepper motor (3) drives the 3rd driving-belt (9) to rotate, described 3rd driving-belt (9) drives material spray mechanism (10) to slide along guide rail (17), described first driving-belt (6) and the second driving-belt (7) drive material spray mechanism (10) to slide along the first straight optical axis (4) and the second straight optical axis (5),
Described operating desk (11) is positioned at material spray mechanism (10) below and is screwed together on described trapezoidal screw (12), and described lifting 35 stepper motor (2) drives described trapezoidal screw (12) to rotate to drive described operating desk (11) mobile towards or away from material spray mechanism (10) along described trapezoidal screw (12).
2. a kind of miniature 3D printer with 35 stepper motors according to claim 1, it is characterized in that: described operating desk (11) comprises slide (111), print platform (112), described slide (111) is slidably connected with one end and trapezoidal screw (12), described slide (111) both sides arrange chute (113), and described print platform (112) can be located in chute (113) by pull.
3. a kind of miniature 3D printer with 35 stepper motors according to claim 1, it is characterized in that: described fixture comprises the first holder (13) and the second holder (14), described first holder (13) is slidably arranged in the first straight optical axis (4) and goes up and be fixedly connected with the first driving-belt (6), described first holder (13) arranges the first synchronous pulley (15), described second holder (14) is slidably arranged in the second straight optical axis (5) and goes up and be fixedly connected with the second driving-belt (7), described second holder (14) arranges the second synchronous pulley (16), described 3rd driving-belt (9) is looped around on the first synchronous pulley (15) and the second synchronous pulley (16), described X-axis 35 stepper motor (3) is arranged on the second holder (14), the output shaft of described X-axis 35 stepper motor (3) is connected with the second synchronous pulley (16), described guide rail (17) two ends are separately fixed on the first holder (13) and the second holder (14).
4. a kind of miniature 3D printer with 35 stepper motors according to claim 1 and 2, it is characterized in that: also comprise the 3rd straight optical axis (18) that at least one and described trapezoidal screw (12) be arranged in parallel, described operating desk (11) slides and is located on described 3rd straight optical axis (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520448811.8U CN204801055U (en) | 2015-06-26 | 2015-06-26 | Miniature 3D printer with 35 step motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520448811.8U CN204801055U (en) | 2015-06-26 | 2015-06-26 | Miniature 3D printer with 35 step motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204801055U true CN204801055U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520448811.8U Expired - Fee Related CN204801055U (en) | 2015-06-26 | 2015-06-26 | Miniature 3D printer with 35 step motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN204801055U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924618A (en) * | 2015-06-26 | 2015-09-23 | 芜湖市爱三迪电子科技有限公司 | Miniature 3D (three-dimensional) printer with 35 step motor |
| CN106216677A (en) * | 2016-09-06 | 2016-12-14 | 广东奥基德信机电有限公司 | A kind of 3D printer |
| CN106915168A (en) * | 2017-04-01 | 2017-07-04 | 北京惠朗时代科技有限公司 | A kind of Double-axis transmission structure and print control instrument |
| CN107616669A (en) * | 2016-07-14 | 2018-01-23 | 合肥道卓科技有限公司 | A kind of intelligent cooking apparatus cuts film feeding system |
| CN108000877A (en) * | 2017-12-06 | 2018-05-08 | 长沙远达华信息科技有限公司 | The X-axis sliding floor of 3D printer |
| CN108245027A (en) * | 2016-12-28 | 2018-07-06 | 合肥道卓科技有限公司 | A kind of intelligent cooking apparatus cuts film feeding system |
| CN108245026A (en) * | 2016-12-28 | 2018-07-06 | 合肥道卓科技有限公司 | Film feeding system is cut in a kind of overturning of intelligent cooking apparatus |
-
2015
- 2015-06-26 CN CN201520448811.8U patent/CN204801055U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924618A (en) * | 2015-06-26 | 2015-09-23 | 芜湖市爱三迪电子科技有限公司 | Miniature 3D (three-dimensional) printer with 35 step motor |
| CN107616669A (en) * | 2016-07-14 | 2018-01-23 | 合肥道卓科技有限公司 | A kind of intelligent cooking apparatus cuts film feeding system |
| CN107616669B (en) * | 2016-07-14 | 2020-11-17 | 合肥道卓科技有限公司 | Film cutting and feeding system of intelligent cooking device |
| CN106216677A (en) * | 2016-09-06 | 2016-12-14 | 广东奥基德信机电有限公司 | A kind of 3D printer |
| CN108245027A (en) * | 2016-12-28 | 2018-07-06 | 合肥道卓科技有限公司 | A kind of intelligent cooking apparatus cuts film feeding system |
| CN108245026A (en) * | 2016-12-28 | 2018-07-06 | 合肥道卓科技有限公司 | Film feeding system is cut in a kind of overturning of intelligent cooking apparatus |
| CN108245027B (en) * | 2016-12-28 | 2020-09-11 | 合肥道卓科技有限公司 | Film cutting and feeding system of intelligent cooking device |
| CN108245026B (en) * | 2016-12-28 | 2020-09-11 | 合肥道卓科技有限公司 | Turnover film cutting and feeding system of intelligent cooking device |
| CN106915168A (en) * | 2017-04-01 | 2017-07-04 | 北京惠朗时代科技有限公司 | A kind of Double-axis transmission structure and print control instrument |
| CN108000877A (en) * | 2017-12-06 | 2018-05-08 | 长沙远达华信息科技有限公司 | The X-axis sliding floor of 3D printer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20151125 Termination date: 20160626 |