CN204314317U - The poidometer of coal analysis sample - Google Patents
The poidometer of coal analysis sample Download PDFInfo
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- CN204314317U CN204314317U CN201420693675.4U CN201420693675U CN204314317U CN 204314317 U CN204314317 U CN 204314317U CN 201420693675 U CN201420693675 U CN 201420693675U CN 204314317 U CN204314317 U CN 204314317U
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Abstract
The utility model discloses a kind of poidometer of coal analysis sample, belong to coal analysis technical field, to sampling device (2), be loaded on body (12) respectively to sample driver (3), meausring apparatus (4), mobile device (5), stepping mechanism (6), steady arm (7), position switch (8); Mechanical arm (9), sampler (10), analyzing container (11) unroll respectively body (12) arrange; The collection being carried out coal sample by mechanical arm (9) is transported, quantitatively dose from coal sample container to be analyzed to analyzing container, overall process is without the need to manual intervention or non-productive operation, and the coal sample of automatic Realization analysis container is quantitatively dosed, and ensure that the credibility weighing and dose coal sample in process; Owing to adopting multiple coal sample corresponding multiple to sampling device, avoid the cross-infection of different coal sample; Post analysis link raising precision and reduction bias provide guarantee for it.
Description
Technical field
The utility model relates to a kind of poidometer of coal analysis sample, belongs to coal analysis technical field.
Background technology
Along with the development of market economy, the continuous growth of coal production, coal analysis can provide technical checking data for coal production and utilization; By the restriction of legacy equipment technical merit, assay is in semiautomatic working state always, doses the important step that micro-example is assay to analyzing container quantification; Usually the process dosing sample to analyzing container is also the sampling process to sample, is manual operation; The sample segment got for sample should be representative, and manual operation mixes sample by little spoon; Gram level or milligram level are generally for dosed sample size, when manual operation, in order to satisfied weighing deviation requirement, generally repeatedly must take a small amount of sample with little spoon in sample container and put into analyzing container; Careful requirement makes the process of quantitatively dosing of sample be very loaded down with trivial details; In addition due to manual operation, easily there is error, the confidence level of impact analysis result.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of poidometer of coal analysis sample, quantitatively dose from coal sample container to be analyzed to analyzing container, overall process is without the need to manual intervention or non-productive operation, and the coal sample of automatic Realization analysis container is quantitatively dosed.
To achieve these goals, the technical solution adopted in the utility model is: the poidometer of this coal analysis sample, comprising:
To sampling device, quantity is at least two, for the feed of difference coal sample to be analyzed, stops the cross-infection of different coal sample;
To sample driver, multiple to sampling device for driving;
Meausring apparatus, for dosing the weight detecting of coal sample to analyzing container quantification;
Mobile device, moving linearly together with to sampling device to sample driver for ordering about, realizing the switching of D position and C position;
Stepping mechanism, gives sampling device horizontal stepping successively for multiple, realizes to sampling device B position filling vacancies in the proper order one by one toward C position;
Steady arm, for detecting to the position of rotation of grooved shaft coupling in sample driver, under the control of the controller, guarantee to sampling device when C position, the groove of grooved shaft coupling is in horizontality, to make this can be moved out to E position easily from C position to the flat axle of sampling device or next to be bumped in groove from B position to sampling device fills vacancies in the proper order C position;
Position switch, multiplely to ensure when C position to sampling device with coaxial to sample driver to the position residing for sampling device for detecting;
Mechanical arm, for capturing sampler and analyzing container and fetching and delivering;
Sampler, for taking of coal sample to be analyzed;
Analyzing container, for carrying out the analysis of coal sample;
Controller, respectively with give sample driver, meausring apparatus, mobile device, stepping mechanism, steady arm, position switch, mechanical arm cable be connected, for controlling coal sample to be analyzed toward quantitatively dosing the operation with each parts in analyzing container;
Body;
To sampling device, be loaded on respectively on body to sample driver, meausring apparatus, mobile device, stepping mechanism, steady arm, position switch; Mechanical arm, sampler, analyzing container unroll respectively body arrange.
Further, described gives sampling device, comprises flat axle, conveyor screw, body, end cap, sample introduction bucket, outlet, sliver; Flat axle is connected with conveyor screw, is placed in shell, and one end end cap is porose and be placed on flat axle, and end cap and body clamping, can connect fast and dismantle, easy cleaning; Body is provided with sample introduction bucket, outlet, sliver;
Further, described gives sample driver, comprises motor, grooved shaft coupling, support; Motor is loaded on support, and the output shaft of motor is connected with grooved shaft coupling, and grooved shaft coupling matches with giving the flat axle of sampling device, for transmitting torque, is convenient to be bumped into and shift out simultaneously; Support is provided with upper limit plate and gib head, and upper limit plate is two, is arranged in B and E position, is in horizontality for ensureing to sampling device plane of flat axle when B and E position, and gib head is used for hooking end cap to be impelled and get back to C position to sampling device from D position.
Further, described meausring apparatus, comprises balance, protective cover, Loading channel, analyzing container picks and places passage; Balance is arranged in protective cover, and Loading channel and analyzing container pick and place passage and be separately positioned on both sides on protective cover; Protective cover for make analysis sample dose and weighing process is carried out in enclosed cavity, reduce extraneous factor interference;
Further, described stepping mechanism, comprises supporting plate, guide rod, gear train, lower limiting board; Supporting plate and guide rod are slidably connected, and the flexible drives of gear train is connected with supporting plate, be provided with above supporting plate with to the guide groove of sampling device equal number; In B position, embed in guide groove to the sliver of sampling device, and can be free to slide along guide groove, lower limiting board is two, is arranged in B and E position, is in horizontality for ensureing to sampling device plane of flat axle when B and E position; Gear train is synchronous cog belt or for chain or for V--belt Drive.
Further, described mechanical arm, comprises the symmetrical hand lobe of two of can clamp cylinder and segment, to be located between two symmetrical hand lobes and to be fixed on the electromagnet on any one hand lobe, the pin be arranged on hand lobe; Pin for inserting in the pin-and-hole of sampler, electromagnet by electromagnetic force make sampler and hand lobe sturdy, when avoiding mechanical arm to move, sampler is freely waved.
Further, described sampler, it is similar to scissors, comprises pin-and-hole, sample spoon, axle; Two sample spoons are arranged in a crossed manner, and fixed through the pin-and-hole on two sample spoons by axle.
The method of work of the poidometer of this coal analysis sample, its specific works step is as follows:
A, to sampling device by its sliver successively embedded the guide groove of supporting plate in identical with supporting plate quantity of will clean out, made the lower plane of its flat axle and lower limiting board coincide simultaneously and be in horizontality;
B, mechanical arm crawl sampler is inserted successively in different sample container and is obtained part coal sample, and the loading be corresponding in turn to is in the sample introduction bucket of sampling device;
C, stepping mechanism start, and move to C position to sampling device for first by B position;
D, analyzing container pick and place passage and open, and mechanical arm crawl analyzing container is delivered on balance and removed the peel, and analyzing container picks and places pathway closure;
E, mobile device start, and impel and move to D position to sampling device by C position, aim at analyzing container now to the outlet of sampling device;
F, to start to sample driver, the coal sample in sample introduction bucket to be entered and evenly conveying is dosed in analyzing container to sampling device, balance is to dosing coal sample amount tracing detection simultaneously, is regulated, reach quantitatively dosing of coal sample by the PID of controller; Mobile device starts, and impels and gets back to C position to sampling device from D position; Analyzing container picks and places passage and opens, and mechanical arm captures the analyzing container having dosed coal sample and sends into corresponding analysis instrument; Analyzing container picks and places pathway closure;
G, need to this coal sample repeatedly weigh dose time, step D ~ F can be repeated; Need to another coal sample carry out weighing dose time, stepping mechanism starts, and next sampling device of giving moves to C position from B position, moves to E position to sampling device, repeats step D ~ F afterwards for first from C position.
Compared with prior art, the utility model is owing to adopting mechanical arm, and quantitatively dose from coal sample container to be analyzed to analyzing container, overall process is without the need to manual intervention or non-productive operation, the coal sample of automatic Realization analysis container is quantitatively dosed, and ensure that the credibility weighing and dose coal sample in process; Owing to adopting multiple coal sample corresponding multiple to sampling device, avoid the cross-infection of different coal sample; Post analysis link raising precision and reduction bias provide guarantee for it.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the layout schematic diagram that the utility model is overlooked;
Fig. 4 is that the utility model is to the position view of B, C and E in sampling device;
Fig. 5 is that the utility model is to the position view of B, C and D in sampling device;
Fig. 6 is to the front view of sampling device in the utility model;
Fig. 7 is to the front view of sample driver in the utility model;
Fig. 8 is the front view of meausring apparatus in the utility model;
Fig. 9 is the front view of stepping mechanism in the utility model;
Figure 10 is the front view of mechanical arm in the utility model;
Figure 11 is the front view of sampler in the utility model;
In figure: 1, controller, 2, to sampling device, 2.1, flat axle, 2.2, conveyor screw, 2.3, body, 2.4, end cap, 2.5, sample introduction bucket, 2.6, outlet, 2.7, sliver, 3, to sample driver, 3.1, motor, 3.2, grooved shaft coupling, 3.3, support, 3.3.1, upper limit plate, 3.3.2, gib head, 4, meausring apparatus, 4.1, balance, 4.2, protective cover, 4.3, Loading channel, 4.4, analyzing container picks and places passage, 5, mobile device, 6, stepping mechanism, 6.1, supporting plate, 6.2, guide rod, 6.3, gear train, 6.4, lower limiting board, 7, steady arm, 8, position switch, 9, mechanical arm, 9.1, hand lobe, 9.2, electromagnet, 9.3, pin, 10, sampler, 10.1, pin-and-hole, 10.2, sample spoon, 10.3, axle, 11, analyzing container, 12, body.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, Figure 2 and Figure 3, the utility model comprises controller 1, to sampling device 2, to sample driver 3, meausring apparatus 4, mobile device 5, stepping mechanism 6, steady arm 7, position switch 8, mechanical arm 9, sampler 10, analyzing container 11, body 12; To sampling device 2, be loaded on body 12 respectively to sample driver 3, meausring apparatus 4, mobile device 5, stepping mechanism 6, steady arm 7, position switch 8; Mechanical arm 9, sampler 10, analyzing container 11 body 12 that unrolls respectively is arranged; Controller 1 respectively with give sample driver 3, meausring apparatus 4, mobile device 5, stepping mechanism 6, steady arm 7, position switch 8, mechanical arm 9 cable be connected, for controlling coal sample to be analyzed toward quantitatively dosing the operation with each parts in analyzing container 11;
Be at least two to the quantity of sampling device 2, for the feed of difference coal sample to be analyzed, stop the cross-infection of different coal sample;
To sample driver 3, for multiple common drive of giving sampling device 2;
Meausring apparatus 4, for dosing the weight detecting of coal sample to analyzing container 11 quantification;
As shown in Figure 1, Figure 4 and Figure 5, mobile device 5, moving linearly together with to sampling device 2 to sample driver 3 for ordering about, realizing the switching of D position and C position;
As shown in Fig. 2, Fig. 4 and Fig. 5, stepping mechanism 6, gives sampling device 2 horizontal stepping successively for multiple, realizes to sampling device 2 B position filling vacancies in the proper order one by one toward C position;
As shown in Figure 1, steady arm 7, for detecting to the position of rotation of grooved shaft coupling 3.2 in sample driver 3, under the control of controller 1, guarantee to sampling device 2 when C position, the groove of grooved shaft coupling 3.2 is in horizontality, to make this can be moved out to E position easily from C position to the flat axle 2.1 of sampling device 2 or next to be bumped in groove from B position to sampling device 2 fills vacancies in the proper order C position;
As shown in Figure 2, position switch 8, multiplely to ensure when C position to sampling device 2 with coaxial to sample driver 3 to the position residing for sampling device 2 for detecting.
As shown in Figure 3, mechanical arm 9, for capturing sampler 10 and analyzing container 11 and fetching and delivering;
Sampler 10, for taking of coal sample to be analyzed;
As shown in Figure 6, described sampling device 2 of giving comprises flat axle 2.1, conveyor screw 2.2, body 2.3, end cap 2.4, sample introduction bucket 2.5, outlet 2.6, sliver 2.7; Flat axle 2.1 is connected with conveyor screw 2.2, is placed in shell 2.3, and one end end cap 2.4 is porose and be placed on flat axle 2.1, and end cap 2.4 is connected and dismantles with body 2.3, easy cleaning fast; Body 2.3 is provided with sample introduction bucket 2.5, outlet 2.6, sliver 2.7;
As shown in Figure 7, described gives sample driver 3, comprises motor 3.1, grooved shaft coupling 3.2, support 3.3; Motor 3.1 is loaded on support 3.3, and the output shaft of motor 3.1 is connected with grooved shaft coupling 3.2, and grooved shaft coupling 3.2 matches with giving the flat axle 2.1 of sampling device 2, for transmitting torque, is convenient to be bumped into and shift out simultaneously; Support 3.3 is provided with upper limit plate 3.3.1 and gib head 3.3.2, upper limit plate 3.3.1 is two, be arranged in B and E position, be in horizontality for ensureing to sampling device 2 plane of flat axle 2.1 when B and E position, gib head 3.3.2 is used for hooking end cap 2.4 to be impelled and gets back to C position to sampling device 2 from D position.
As shown in Figure 8, described meausring apparatus 4 comprises balance 4.1, protective cover 4.2, Loading channel 4.3, analyzing container pick and place passage 4.4; Protective cover 4.2 for make analysis sample dose and weighing process is carried out in enclosed cavity, reduce extraneous factor interference; Loading channel 4.3 is for giving sampling device 2 passage that stretches into or regain, and analyzing container picks and places passage 4.4 and fetches and delivers passage for analyzing container 11.
As shown in Figure 9, described stepping mechanism 6 comprises supporting plate 6.1, guide rod 6.2, gear train 6.3, lower limiting board 6.4; Supporting plate 6.1 and guide rod 6.2 are slidably connected, and the flexible drives of gear train 6.3 is connected with supporting plate 6.1, supporting plate 6.1 be provided with above with to the guide groove 6.1.1 of sampling device 2 equal number; In B position, embed in guide groove 6.1.1 to the sliver 2.7 of sampling device 2, and can be free to slide along guide groove 6.1.1, lower limiting board 6.4 is two, is arranged in B and E position, is in horizontality for ensureing to sampling device 2 plane of flat axle 2.1 when B and E position; Gear train 6.3 is synchronous cog belt or for chain or for V--belt Drive.
As shown in Figure 10, described mechanical arm 9 comprises the symmetrical hand lobe 9.1 of two of can clamp cylinder and segment, to be located between two symmetrical hand lobes 9.1 and to be fixed on the electromagnet 9.2 on any one hand lobe 9.1, the pin 9.3 be arranged on hand lobe 9.1; Pin 9.3 is for inserting in the pin-and-hole 10.1 of sampler 10, the gripping of sample spoon 10.2 pairs of samples is realized by the unlatching of the hand lobe 9.1 of symmetry, electromagnet 9.2 makes sampler 10 and hand lobe 9.1 sturdy by electromagnetic force, and when avoiding mechanical arm 9 to move, sampler 10 is freely waved.
As shown in figure 11, described sampler 10 comprises pin-and-hole 10.1, sample spoon 10.2, axle 10.3; Likeness in form scissors.
For optimum embodiment of the present utility model, the job step elaboration to the poidometer of coal analysis sample:
Case: this device is provided with six and is provided with six guide groove 6.1.1 to sampling device 2, supporting plate 6.1, needing to weigh the coal sample dosed has six kinds, requires weigh in analyzing container 11 respectively and dose 1g ± 0.1g coal sample;
A, embeds in the guide groove 6.1.1 of supporting plate 6.1 to sampling device 2 successively respectively by its sliver 2.7 by six that clean out, make simultaneously the lower plane of its flat axle 2.1 and lower limiting board 6.4 identical, guarantee that it keeps horizontality when B position;
B, mechanical arm 9 capture sampler 10 and insert in six kinds of coal sample containers successively and obtain part coal sample, and the loading six be corresponding in turn to is given in the sample introduction bucket 2.5 of sampling device 2;
C, stepping mechanism 6 start, and move to C position to sampling device 2 for first by B position;
D, analyzing container pick and place passage 4.4 and open, and mechanical arm 9 captures analyzing container 11 and delivers to peeling on balance 4.1, and analyzing container picks and places passage 4.4 and closes;
E, mobile device 5 start, and impel and move to D position to sampling device 2 by C position, aim at analyzing container 11 now to the outlet 2.6 of sampling device 2;
F, to start to sample driver 3, to sampling device 2, the coal sample in sample introduction bucket 2.5 is entered and is evenly carried to dose in analyzing container 11, balance 4.1 is to dosing coal sample amount tracing detection simultaneously, regulated by the PID of controller 1, reach quantitatively dosing of coal sample, meet the requirement of preset value 1g ± 0.1g coal sample; Mobile device 5 starts, and impels and gets back to C position to sampling device 2 from D position; Analyzing container picks and places passage 4.4 and opens, and mechanical arm 9 captures the analyzing container 11 dosing coal sample and sends into corresponding analysis instrument, completes the weighing of first coal sample and doses; Analyzing container picks and places passage 4.4 and closes;
G, change second coal sample weighing and dose: stepping mechanism 6 starts, be equipped with second coal sample give sampling device 2 move to C position by B position, be equipped with first coal sample give sampling device 2 move to E position by C position; Repeat step D ~ F, the like, until six kinds of coal samples all weigh and dose complete.
Owing to adopting mechanical arm, from coal sample container to be analyzed quantitatively dosing to analyzing container, overall process is without the need to manual intervention or non-productive operation, and the coal sample of automatic Realization analysis container is quantitatively dosed, and ensure that the credibility weighing and dose coal sample in process; Owing to adopting multiple coal sample corresponding multiple to sampling device, avoid the cross-infection of different coal sample; Post analysis link raising precision and reduction bias provide guarantee for it.
Claims (7)
1. a poidometer for coal analysis sample, is characterized in that, comprising:
To sampling device (2), quantity is at least two, for the feed of difference coal sample to be analyzed;
To sample driver (3), multiple to sampling device (2) for driving;
Meausring apparatus (4), for dosing the weight detecting of coal sample to analyzing container (11) quantification;
Mobile device (5), moving linearly together with to sampling device (2) to sample driver (3) for ordering about, realizing the switching of D position and C position;
Stepping mechanism (6), gives sampling device (2) horizontal stepping successively for multiple, realizes to sampling device (2) B position filling vacancies in the proper order one by one toward C position;
Steady arm (7), for detecting to the position of rotation of grooved shaft coupling (3.2) in sample driver (3), under the control of controller (1), guarantee to sampling device (2) when C position, the groove of grooved shaft coupling (3.2) is in horizontality, to make this can be moved out to E position easily from C position to the flat axle (2.1) of sampling device (2) or next to be bumped in groove from B position to sampling device (2) fills vacancies in the proper order C position;
Position switch (8), multiplely to ensure when C position to sampling device (2) with coaxial to sample driver (3) to the position residing for sampling device (2) for detecting;
Mechanical arm (9), for capturing sampler (10) and analyzing container (11) and fetching and delivering;
Sampler (10), for taking of coal sample to be analyzed;
Analyzing container (11), for carrying out the analysis of coal sample;
Controller (1), respectively with give sample driver (3), meausring apparatus (4), mobile device (5), stepping mechanism (6), steady arm (7), position switch (8), mechanical arm (9) cable be connected, for controlling coal sample to be analyzed toward quantitatively dosing the operation with each parts in analyzing container (11);
Body (12);
To sampling device (2), be loaded on body (12) respectively to sample driver (3), meausring apparatus (4), mobile device (5), stepping mechanism (6), steady arm (7), position switch (8); Mechanical arm (9), sampler (10), analyzing container (11) unroll respectively body (12) arrange.
2. the poidometer of a kind of coal analysis sample according to claim 1, it is characterized in that, described gives sampling device (2), comprise flat axle (2.1), conveyor screw (2.2), body (2.3), end cap (2.4), sample introduction bucket (2.5), outlet (2.6), sliver (2.7); Flat axle (2.1) is connected with conveyor screw (2.2), be placed in shell (2.3), one end end cap (2.4) is porose and be placed on flat axle (2.1), end cap (2.4) and body (2.3) clamping; Body (2.3) is provided with sample introduction bucket (2.5), outlet (2.6), sliver (2.7).
3. the poidometer of a kind of coal analysis sample according to claim 1 and 2, it is characterized in that, described gives sample driver (3), comprises motor (3.1), grooved shaft coupling (3.2), support (3.3); Motor (3.1) is loaded on support (3.3), the output shaft of motor (3.1) is connected with grooved shaft coupling (3.2), grooved shaft coupling (3.2) matches, for transmitting torque with giving the flat axle (2.1) of sampling device (2); Support (3.3) is provided with upper limit plate (3.3.1) and gib head (3.3.2), upper limit plate (3.3.1) is two, be arranged in B and E position, be in horizontality for ensureing to the plane of sampling device (2) flat axle (2.1) when B and E position, gib head (3.3.2) impels and gets back to C position to sampling device (2) from D position for hooking end cap (2.4).
4. the poidometer of a kind of coal analysis sample according to claim 1 and 2, it is characterized in that, described meausring apparatus (4), comprises balance (4.1), protective cover (4.2), Loading channel (4.3), analyzing container picks and places passage (4.4); Balance (4.1) is arranged in protective cover (4.2), and Loading channel (4.3) and analyzing container pick and place passage (4.4) and be separately positioned on both sides on protective cover.
5. the poidometer of a kind of coal analysis sample according to claim 1, it is characterized in that, described stepping mechanism (6), comprises supporting plate (6.1), guide rod (6.2), gear train (6.3), lower limiting board (6.4); Supporting plate (6.1) and guide rod (6.2) are slidably connected, the flexible drives of gear train (6.3) is connected with supporting plate (6.1), supporting plate (6.1) be provided with above with to the guide groove (6.1.1) of sampling device (2) equal number; In B position, embed in guide groove (6.1.1) to the sliver of sampling device (2) (2.7), and can be free to slide along guide groove (6.1.1), lower limiting board (6.4) is two, being arranged in B and E position, being in horizontality for ensureing to the plane of sampling device (2) flat axle (2.1) when B and E position; Gear train (6.3) is for synchronous cog belt or be chain or for V--belt Drive.
6. the poidometer of a kind of coal analysis sample according to claim 1, it is characterized in that, described mechanical arm (9), comprise can clamp cylinder and segment two symmetrical hand lobes (9.1), to be located between two symmetrical hand lobes (9.1) and to be fixed on the electromagnet (9.2) on any one hand lobe (9.1), the pin (9.3) be arranged on hand lobe (9.1); Pin (9.3) is for inserting in the pin-and-hole (10.1) of sampler (10), and electromagnet (9.2) makes sampler (10) and hand lobe (9.1) sturdy by electromagnetic force.
7. the poidometer of a kind of coal analysis sample according to claim 1, is characterized in that, described sampler (10), comprises pin-and-hole (10.1), sample spoon (10.2), axle (10.3); Two sample spoons (10.2) are arranged in a crossed manner, and fixed through the pin-and-hole (10.1) on two sample spoons (10.2) by axle (10.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693675.4U CN204314317U (en) | 2014-11-18 | 2014-11-18 | The poidometer of coal analysis sample |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420693675.4U CN204314317U (en) | 2014-11-18 | 2014-11-18 | The poidometer of coal analysis sample |
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| CN204314317U true CN204314317U (en) | 2015-05-06 |
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| CN201420693675.4U Withdrawn - After Issue CN204314317U (en) | 2014-11-18 | 2014-11-18 | The poidometer of coal analysis sample |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698204A (en) * | 2014-11-18 | 2015-06-10 | 赛摩电气股份有限公司 | Automatic coal quality analysis sample weighing device and working method thereof |
-
2014
- 2014-11-18 CN CN201420693675.4U patent/CN204314317U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698204A (en) * | 2014-11-18 | 2015-06-10 | 赛摩电气股份有限公司 | Automatic coal quality analysis sample weighing device and working method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150506 Effective date of abandoning: 20160914 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |