CN102589663A - Electric flow electronic scale - Google Patents
Electric flow electronic scale Download PDFInfo
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- CN102589663A CN102589663A CN2012100669882A CN201210066988A CN102589663A CN 102589663 A CN102589663 A CN 102589663A CN 2012100669882 A CN2012100669882 A CN 2012100669882A CN 201210066988 A CN201210066988 A CN 201210066988A CN 102589663 A CN102589663 A CN 102589663A
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Abstract
The invention belongs to the technical field of packaging of granulated materials and particularly relates to an electric flow electronic scale. The electric flow electronic scale comprises an electric feeding device and an electric weighing device which are arranged on a machine frame, wherein the electric feeding device is arranged on the upper side of the electric weighing device. The electric flow electronic scale further comprises a control device arranged on the machine frame, wherein the electric feeding device and the electric weighing device are electrically connected with the control device. A control component and an executive component of the flow electronic scale are electronic components, so the flow electronic scale can operate with electric energy, the structure complexity of the flow electronic scale is reduced, and the manufacturing cost and the maintenance difficulty of the flow electronic scale are reduced. The control component and the executive component of the flow electronic scale are electronic components, so the flow electronic scale has high work efficiency and weighing accuracy. The electronic scale can operate without being influenced by change of external environment temperature and can be suitable for working in the alpine region well.
Description
Technical field
The invention belongs to granular material packing technique field, be specifically related to a kind of electrodynamic type flow electronic scales.
Background technology
The flow scale is the indispensable equipment of granule packaging enterprise, and it is mainly bearing the gage work of granular material raw material, in the process that material is carried continuously, the quality of material is monitored, so the weighing accuracy of flow scale is very important.
The flow scale of producing in the market is electric-controlled pneumatic type flow scale mostly, and this electric-controlled pneumatic type flow scale mainly partly is made up of pneumatic feeding mechanism, pneumatic weighing tank, frame, electric cabinet etc.Because the work control element of this kind flow scale is a solenoid valve; The execution components and parts are cylinder; Therefore electric-controlled pneumatic type flow scale is very high to the requirement of source of the gas; Cause existing electric-controlled pneumatic type flow scale to have following three shortcomings thus: one of which, the efficient of cylinder operation and the stable influence that receives source of the gas stable gas pressure property fully, operating rate descends, the accuracy of weighing reduces if the air pressure shakiness will cause; Its two, contain a large amount of moisture in the gas, thus this kind flow scale at extremely frigid zones often because pneumatic components and parts are damaged because of hydrogenesis is freezing, and cause the flow scale to work; Its three, the characteristic on the principle of work has determined electric-controlled pneumatic type flow scale that the supply of two kinds of energy of the gentle ability of electric energy must be arranged, so becomes complicated loaded down with trivial details on the structure of weighing scale, has not only improved manufacturing cost, and has improved the difficulty of maintenance.
Summary of the invention
The purpose of this invention is to provide a kind of electrodynamic type flow electronic scales, the work of this flow electronic scales the time only need electric energy and need not gas can, so do not receive the influence of temperature height during the work of this flow electronic scales, work efficiency is higher.
For realizing above-mentioned purpose, the present invention has adopted following technical scheme: a kind of electrodynamic type flow electronic scales, this electronic scales comprise electronic drawing-in device and the electronic meausring apparatus that is arranged on the frame, and said electronic drawing-in device is arranged on the upside of electronic meausring apparatus; Said electronic scales also comprises the control device that is arranged on the frame; Said electronic drawing-in device and electronic meausring apparatus all electrically connect with control device.
This flow electronic scales can also be able to further realization in the following manner:
Preferably, said electronic drawing-in device comprises that the keying of guide tube and control guide tube is so that to first emptying door of electronic meausring apparatus feeding, said electronic drawing-in device also comprises the first emptying door control gear that is used to drive the action of first emptying door; Said electronic meausring apparatus comprises the weighing tank and the LOAD CELLS mechanism that is used for weighing tank is weighed that is used to accept from the material of guide tube, and said electronic meausring apparatus also comprises the keying of control weighing tank so that second emptying door of blowing and be used to drive the second emptying door control gear that second emptying door moves; Said weighing tank hangs through LOAD CELLS mechanism and is located on the frame.
Said control device comprises programmable logic controller (PLC) and the display device that is arranged in the electric cabinet, and the said first emptying door control gear, the second emptying door control gear and LOAD CELLS mechanism all electrically connect with programmable logic controller (PLC); The signal output part of said programmable logic controller (PLC) links to each other with the signal input part of display device.
The said first emptying door control gear comprises first drive motor that is installed on the frame and first gear train that links to each other with first drive motor; The output terminal of said first gear train links to each other with an end of first swing arm; The other end of first swing arm links to each other with an end of first connecting rod; The other end of first connecting rod links to each other with first emptying door, and first connecting rod drives the action of first emptying door and makes the guide tube be in unlatching in weighing tank, to import material or to close to stop input material two states in weighing tank; The signal output part of said first drive motor and programmable logic controller (PLC) electrically connects.
Said first emptying door comprises that the lower ending opening that is arranged on the guide tube sentences the baffle plate that control guide tube opens and closes, and the both sides of baffle plate are provided with cantilever, and cantilever is hinged with first bearing pin that is arranged on the guide tube; At least one cantilever in said two cantilevers is provided with first teat at the hinged end place of this cantilever; Said first connecting rod links to each other with the end away from first teat of first emptying door; Rotating and the place, two rotation limit positions of the pivot region that obtains is provided with first proximity transducer and second proximity transducer respectively around hinged end of said first teat, the signal output part of said first proximity transducer and second proximity transducer all electrically connect with the signal input part of programmable logic controller (PLC); Said first proximity transducer is used to send the signal that first emptying door has been in closed condition, and second proximity transducer is used for sending the signal that first emptying door has been in opening according to the trickling characteristic of material particles.
The said second emptying door control gear comprises second drive motor that is installed on the frame and second gear train that links to each other with second drive motor; The output terminal of said second gear train links to each other with an end of second swing arm; The other end of second swing arm links to each other with an end of second connecting rod; The other end of second connecting rod links to each other with second emptying door, and second connecting rod drives second emptying door action and makes weighing tank be in unlatching with downward discharges material or close to stop the discharges material two states; The signal output part of said second drive motor and programmable logic controller (PLC) electrically connects.
Said second emptying door comprises that the lower ending opening that is arranged on weighing tank sentences the baffle plate that the control weighing tank opens and closes, and the both sides of baffle plate are provided with cantilever, and cantilever is hinged with second bearing pin that is arranged on the weighing tank; At least one cantilever in said two cantilevers is provided with second teat at the hinged end place of this cantilever; Said second connecting rod links to each other with the end away from second teat of second emptying door; The place, two rotation limit positions of the pivot region that obtains around the hinged end rotation of said second teat is provided with the 3rd proximity transducer and the 4th proximity transducer respectively, and said the 3rd proximity transducer and the 4th proximity transducer all electrically connect with control device; Said the 3rd proximity transducer is used to send the signal that second emptying door has been in closed condition, and the 4th proximity transducer is used to send the signal that second emptying door has been in opening.
Said LOAD CELLS mechanism comprises at least three LOAD CELLS assemblies, and said LOAD CELLS assembly is installed on the frame through mounting frame for sensor; The projecting end of said LOAD CELLS assembly upper end downward and weighing tank is connected, and is located on the frame so that weighing tank hangs; The signal output part of said LOAD CELLS assembly and the signal input part of programmable logic controller (PLC) electrically connect.
Preferably, the outside of said LOAD CELLS assembly all is covered with protective cover.
The lower end of said weighing tank is provided with and is used to accept from the material of weighing tank and is convenient to the hopper of material discharging, and the lower ending opening place of said hopper is provided with regulating gate, and the headwall of said hopper is provided with view window.
The present invention compares with prior art has following beneficial effect:
1), controlling parts in this flow electronic scales and execution components and parts are electronic devices and components; Only need electric energy to get final product when therefore the present invention works; Reduced the complex structure degree of flow electronic scales thus; Also promptly reduce the manufacturing cost of flow electronic scales, also reduced the difficulty of maintenance.
2), because the controlling parts in this flow electronic scales and carry out components and parts and be electronic devices and components, therefore work efficiency of the present invention and weighing accuracy are all higher.
3), this flow electronic scales work influence of not changed by ambient temperature, can be applicable to the work of extremely frigid zones preferably.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 be Fig. 1 open frame structural representation behind the door.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the structural representation of opening the upper spider door of Fig. 2.
The implication of mark is following among the figure:
The electronic drawing-in device 4-of 1-upper spider 2-lower bearing bracket 3-hopper
Left-hand door before the 5-electric cabinet 6-weighing tank 7-protective cover 8-
The right trough 12-of right door 10-left side trough 11-left cover before the 9-
The right cover plate 14-of 13-view window 15-offside door 16-regulating gate
The 17A-first drive motor 17B-second drive motor 18-second swing arm
The 19-second connecting rod 20-second emptying door 201-second teat
The 21A-first installing plate 21B-second installing plate 22-first bearing pin
23-the 3rd proximity transducer 24-the 4th proximity transducer
The 25-first proximity transducer 26-second proximity transducer
The 27-mounting frame for sensor 28-second bearing pin 29-sensor module
Projecting end 30-first swing arm of 291-LOAD CELLS assembly
The 31-first connecting rod 32-first emptying door 321-first teat
33-guide tube 34-cantilever
Embodiment
Like Fig. 1, shown in 4, a kind of electrodynamic type flow electronic scales, this electronic scales comprise the electronic drawing-in device 3 and electronic meausring apparatus that is arranged on the frame, and said electronic drawing-in device 3 is arranged on the upside of electronic meausring apparatus; Said electronic scales also comprises the control device that is arranged on the frame; Said electronic drawing-in device 3 all electrically connects with control device with electronic meausring apparatus.
Preferably; Said electronic drawing-in device 3 comprises that the keying of guide tube 33 and control guide tube 33 is so that to first emptying door 32 of electronic meausring apparatus feeding, said electronic drawing-in device 3 also comprises the first emptying door control gear that is used to drive 32 actions of first emptying door; Said electronic meausring apparatus comprises the weighing tank 6 and the LOAD CELLS mechanism that is used for weighing tank 6 is weighed that is used to accept from the material of guide tube 33, and said electronic meausring apparatus also comprises the keying of control weighing tank 6 so that second emptying door 20 of blowing and be used to drive the second emptying door control gear that second emptying door 20 moves; Said weighing tank 6 hangs through LOAD CELLS mechanism and is located on the frame.
Preferably, said control device comprises programmable logic controller (PLC) and the display device that is arranged in the electric cabinet 5, and the said first emptying door control gear, the second emptying door control gear and LOAD CELLS mechanism all electrically connect with programmable logic controller (PLC); The signal output part of said programmable logic controller (PLC) links to each other with the signal input part of display device.
Owing to be provided with display device, so the information such as keying situation of weighing-up wave, first emptying door and second emptying door all can be able to show intuitively on display device, help operating personnel and are well understood to whole working condition.
As shown in Figure 6; The said first emptying door control gear comprises first gear train that is installed in the first drive motor 17A on the frame and links to each other with the first drive motor 17A; The output terminal of said first gear train links to each other with an end of first swing arm 30; The other end of first swing arm 30 links to each other with an end of first connecting rod 31; The other end of first connecting rod 31 links to each other with first emptying door 32, and first connecting rod 31 drives 32 actions of first emptying door and makes guide tube 33 be in unlatching in weighing tank 6, to import material or to close to stop input material two states in weighing tank 6; The signal output part of said first drive motor 17A and programmable logic controller (PLC) electrically connects.
Like Fig. 4, shown in 6, said first emptying door 32 comprises that the lower ending opening that is arranged on guide tube 33 sentences the baffle plate that control guide tube 33 opens and closes, and the both sides of baffle plate are provided with cantilever 34, and cantilever 34 is hinged with first bearing pin 22 that is arranged on the guide tube 33; At least one cantilever in said two cantilevers is provided with first teat 321 at the hinged end place of this cantilever; Said first connecting rod 31 links to each other with the end away from first teat 321 of first emptying door 32; Rotating and the place, two rotation limit positions of the pivot region that obtains is provided with first proximity transducer 25 and second proximity transducer 26 respectively around hinged end of said first teat 321, the signal output part of said first proximity transducer 25 and second proximity transducer 26 all electrically connect with the signal input part of programmable logic controller (PLC); Said first proximity transducer 25 is used to send the signal that first emptying door 32 has been in closed condition, and second proximity transducer 26 is used for sending the signal that first emptying door 32 has been in opening according to the trickling characteristic of material particles.
Because the physical characteristics of various materials is all inequality; Therefore the trickling characteristic of various material particles is also all inequality; Second proximity transducer 26 sends the signal that first emptying door 32 has been in opening according to the trickling characteristic of material particles; Also promptly second proximity transducer 26 can carry out optimum adjustment to the folding size of first emptying door 32, thereby has guaranteed the stability and the accuracy of weighing.
Further; As shown in Figure 5; The said second emptying door control gear comprises second gear train that is installed in the second drive motor 17B on the frame and links to each other with the second drive motor 17B; The output terminal of said second gear train links to each other with an end of second swing arm 18; The other end of second swing arm 18 links to each other with an end of second connecting rod 19, and the other end of second connecting rod 19 links to each other with second emptying door 20, and second connecting rod 19 drives 20 actions of second emptying door and makes weighing tank 6 be in unlatching with downward discharges material or close to stop the discharges material two states; The signal output part of said second drive motor 17B and programmable logic controller (PLC) electrically connects.
Preferably, like Fig. 4, shown in 5, said second emptying door 20 comprises that the lower ending opening that is arranged on weighing tank 6 sentences the baffle plate that control weighing tank 6 opens and closes, and the both sides of baffle plate are provided with cantilever, and cantilever is hinged with the bearing pin that is arranged on the weighing tank 6; At least one cantilever in said two cantilevers is provided with second teat 201 at the hinged end place of this cantilever; Said second connecting rod 19 links to each other with the end away from second teat 201 of second emptying door 20; The place, two rotation limit positions of the pivot region that obtains around the hinged end rotation of said second teat 201 is provided with the 3rd proximity transducer 23 and the 4th proximity transducer 24 respectively, and said the 3rd proximity transducer 23 and the 4th proximity transducer 24 all electrically connect with control device; Said the 3rd proximity transducer 23 is used to send the signal that second emptying door 20 has been in closed condition, and the 4th proximity transducer 24 is used to send the signal that second emptying door 20 has been in opening.
Further, like Fig. 1,3,4, shown in 5, said LOAD CELLS mechanism comprises at least three LOAD CELLS assemblies 29, and said LOAD CELLS assembly 29 is installed on the frame through mounting frame for sensor 27; Projecting end 291 upper ends downward and weighing tank 6 of said LOAD CELLS assembly 29 are connected, and are located on the frame so that weighing tank 6 hangs; The signal output part of said LOAD CELLS assembly 29 and the signal input part of programmable logic controller (PLC) electrically connect.
Preferably, the outside of said LOAD CELLS assembly 29 all is covered with protective cover 7, with the infringement of protection LOAD CELLS assembly 29 dust, guarantees the stability and the accuracy of weighing.
Like Fig. 1,2,4,5, shown in 6; The lower end of said weighing tank 6 is provided with and is used to accept from the material of weighing tank 6 and is convenient to the hopper 4 of material discharging; The lower ending opening place of said hopper 4 is provided with regulating gate 16, and the headwall of said hopper 4 is provided with view window 14.
Below in conjunction with accompanying drawing the course of work of the present invention is described further.
Like Fig. 1, shown in 2, the frame among the present invention is made up of upper spider 1 and lower bearing bracket 2.
Said electronic drawing-in device 3 sets up the top that is fixed on upper spider 1; Weighing tank 6 is mounted on the upper spider 1 through three LOAD CELLS assemblies 29, also is provided with electric cabinet 5 on the said upper spider 1; Be equiped with hopper 4 on the said lower bearing bracket 2.
When 6 pairs of weighing tanks fall into wherein material and carry out weighing; Constitute hinged first emptying door 32 that cooperates with guide tube 33 this moment and be in opening; Be in closed condition and constitute hinged second emptying door 20 that cooperates with weighing tank 6; Also promptly first teat 321 on first emptying door, 32 cantilevers 34 is in the position near second proximity transducer 26, and second teat 201 on second emptying door, 20 cantilevers is in the position near the 3rd proximity transducer 23.This moment, material was got in the weighing tank 6 by guide tube 33; Meanwhile, 29 pairs of weighing tanks 6 of three LOAD CELLS assemblies are weighed.
After the material in the weighing tank 6 reaches rated weight; The programmable logic controller (PLC) PLC of LOAD CELLS assembly 29 in being arranged on electric cabinet 5 sends signal; Programmable logic controller (PLC) PLC sends the pass gate signal to the first emptying door control gear then; Also be that the FPGA controller PLC is controlled first drive motor 17A action; The first drive motor 17A drives first rocking arm 30 through first gear train and rotates, and first rocking arm 30 drives first connecting rod 31 actions immediately, and first connecting rod 31 promotes first emptying door 32 and rotates around first bearing pin 22; When first teat 321 when moving near first proximity transducer 25 near second proximity transducer 26; First proximity transducer 25 sends first emptying door 32 to programmable logic controller (PLC) PLC and has been in closed condition, and the first drive motor 17A stops action, and this moment, electronic drawing-in device stopped feeding.
After treating that electronic drawing-in device stops feeding; Programmable logic controller (PLC) PLC sends enabling signal to the second emptying door control gear; Also be that the FPGA controller PLC is controlled second drive motor 17B action, the second drive motor 17B drives second rocking arm 18 through second gear train and rotates, and second rocking arm 18 drives second connecting rod 19 actions immediately; Second connecting rod 19 promotes second emptying door 20 and rotates around second bearing pin 28; When second teat 201 when moving near the 4th proximity transducer 24 near the 3rd proximity transducer 23, the 4th proximity transducer 24 sends second emptying door 20 to programmable logic controller (PLC) PLC and has been in opening, the second drive motor 17B stops action; This moment, the weighing tank 6 in the electronic meausring apparatus began discharges material in hopper 4, and through hopper 4 material was sent into upstream device.
Further, second proximity transducer 26 that is installed on the first installing plate 21A can be according to the difference of material particles trickling property, and the folding size of first emptying door 32 is carried out optimum adjustment, has therefore guaranteed the stability and the accuracy of weighing.
The present invention has thoroughly changed the principle of work of flow scale, has reduced energy consumption, has increased work efficiency, and makes the flow weighing-appliance be equipped with the characteristic in extremely frigid zones work.
Claims (10)
1. electrodynamic type flow electronic scales, it is characterized in that: this electronic scales comprises electronic drawing-in device and the electronic meausring apparatus that is arranged on the frame, and said electronic drawing-in device is arranged on the upside of electronic meausring apparatus; Said electronic scales also comprises the control device that is arranged on the frame; Said electronic drawing-in device and electronic meausring apparatus all electrically connect with control device.
2. electrodynamic type flow electronic scales according to claim 1; It is characterized in that: said electronic drawing-in device comprises the keying of guide tube (33) and control guide tube (33) so that to first emptying door (32) of electronic meausring apparatus feeding, and said electronic drawing-in device also comprises the first emptying door control gear that is used to drive first emptying door (32) action; Said electronic meausring apparatus comprises the LOAD CELLS mechanism that is used to accept from the weighing tank (6) of the material of guide tube (33) and is used for weighing tank (6) is weighed, and said electronic meausring apparatus comprises that also the keying of control weighing tank (6) is so that second emptying door (20) of blowing and the second emptying door control gear that is used to drive second emptying door (20) action; Said weighing tank (6) hangs through LOAD CELLS mechanism and is located on the frame.
3. electrodynamic type flow electronic scales according to claim 2; It is characterized in that: said control device comprises programmable logic controller (PLC) and the display device that is arranged in the electric cabinet (5), and the said first emptying door control gear, the second emptying door control gear and LOAD CELLS mechanism all electrically connect with programmable logic controller (PLC); The signal output part of said programmable logic controller (PLC) links to each other with the signal input part of display device.
4. electrodynamic type flow electronic scales according to claim 3; It is characterized in that: the said first emptying door control gear comprises first drive motor (17A) that is installed on the frame and first gear train that links to each other with first drive motor (17A); The output terminal of said first gear train links to each other with an end of first swing arm (30); The other end of first swing arm (30) links to each other with an end of first connecting rod (31); The other end of first connecting rod (31) links to each other with first emptying door (32), and first connecting rod (31) driving first emptying door (32) moves and makes guide tube (33) be in unlatching in weighing tank (6), to import material or to close to stop input material two states in weighing tank (6); Said first drive motor (17A) electrically connects with the signal output part of programmable logic controller (PLC).
5. electrodynamic type flow electronic scales according to claim 3; It is characterized in that: the said second emptying door control gear comprises second drive motor (17B) that is installed on the frame and second gear train that links to each other with second drive motor (17B); The output terminal of said second gear train links to each other with an end of second swing arm (18); The other end of second swing arm (18) links to each other with an end of second connecting rod (19); The other end of second connecting rod (19) links to each other with second emptying door (20), and second connecting rod (19) drives second emptying door (20) and moves and make weighing tank (6) be in unlatching with downward discharges material or close to stop the discharges material two states; Said second drive motor (17B) electrically connects with the signal output part of programmable logic controller (PLC).
6. electrodynamic type flow electronic scales according to claim 3 is characterized in that: said LOAD CELLS mechanism comprises at least three LOAD CELLS assemblies (29), and said LOAD CELLS assembly (29) is installed on the frame through mounting frame for sensor (27); The projecting end (291) of said LOAD CELLS assembly (29) upper end downward and weighing tank (6) is connected, so that weighing tank (6) hangs is located on the frame; The signal output part of said LOAD CELLS assembly (29) and the signal input part of programmable logic controller (PLC) electrically connect.
7. electrodynamic type flow electronic scales according to claim 4; It is characterized in that: said first emptying door (32) comprises that the lower ending opening that is arranged on guide tube (33) sentences the baffle plate that control guide tube (33) opens and closes; The both sides of baffle plate are provided with cantilever, and cantilever is hinged with first bearing pin that is arranged on the guide tube (33); At least one cantilever in said two cantilevers is provided with first teat at the hinged end place of this cantilever; Said first connecting rod (31) links to each other with the end away from first teat of first emptying door (32); Rotating and the place, two rotation limit positions of the pivot region that obtains is provided with first proximity transducer (25) and second proximity transducer (26) respectively around hinged end of said first teat, the signal output part of said first proximity transducer (25) and second proximity transducer (26) all electrically connect with the signal input part of programmable logic controller (PLC); Said first proximity transducer (25) is used to send the signal that first emptying door (32) has been in closed condition, and second proximity transducer (26) is used for sending the signal that first emptying door (32) has been in opening according to the trickling characteristic of material particles.
8. electrodynamic type flow electronic scales according to claim 5; It is characterized in that: said second emptying door (20) comprises that the lower ending opening that is arranged on weighing tank (6) sentences the baffle plate that control weighing tank (6) opens and closes; The both sides of baffle plate are provided with cantilever, and cantilever is hinged with second bearing pin that is arranged on the weighing tank (6); At least one cantilever in said two cantilevers is provided with second teat at the hinged end place of this cantilever; Said second connecting rod (19) links to each other with the end away from second teat of second emptying door (20); The place, two rotation limit positions of the pivot region that obtains around the hinged end rotation of said second teat is provided with the 3rd proximity transducer (23) and the 4th proximity transducer (24) respectively, and said the 3rd proximity transducer (23) and the 4th proximity transducer (24) all electrically connect with control device; Said the 3rd proximity transducer (23) is used to send the signal that second emptying door (20) has been in closed condition, and the 4th proximity transducer (24) is used to send the signal that second emptying door (20) has been in opening.
9. electrodynamic type flow electronic scales according to claim 6 is characterized in that: the outside of said LOAD CELLS assembly (29) all is covered with protective cover (7).
10. according to each described electrodynamic type flow electronic scales of claim 2～9; It is characterized in that: the lower end of said weighing tank (6) is provided with and is used to accept from the material of weighing tank (6) and is convenient to the hopper (4) of material discharging; The lower ending opening place of said hopper (4) is provided with regulating gate (16), and the headwall of said hopper (4) is provided with view window (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210066988 CN102589663B (en) | 2012-03-14 | 2012-03-14 | Electric flow electronic scale |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210066988 CN102589663B (en) | 2012-03-14 | 2012-03-14 | Electric flow electronic scale |
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| CN102589663A true CN102589663A (en) | 2012-07-18 |
| CN102589663B CN102589663B (en) | 2013-11-06 |
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| CN103123276A (en) * | 2013-02-25 | 2013-05-29 | 安徽永成电子机械技术有限公司 | Electric weightless scale |
| CN104048742A (en) * | 2014-05-31 | 2014-09-17 | 新安中联万基水泥有限公司 | Special measuring platform for cement production |
| CN106644000A (en) * | 2016-10-10 | 2017-05-10 | 赛摩电气股份有限公司 | High-precision weighing scale and weighing method thereof |
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| CN103123276A (en) * | 2013-02-25 | 2013-05-29 | 安徽永成电子机械技术有限公司 | Electric weightless scale |
| CN103123276B (en) * | 2013-02-25 | 2015-12-09 | 安徽永成电子机械技术有限公司 | A kind of electrodynamic type Weightlessness balance |
| CN104048742A (en) * | 2014-05-31 | 2014-09-17 | 新安中联万基水泥有限公司 | Special measuring platform for cement production |
| CN106644000A (en) * | 2016-10-10 | 2017-05-10 | 赛摩电气股份有限公司 | High-precision weighing scale and weighing method thereof |
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| CN102589663B (en) | 2013-11-06 |
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