CN202562442U - Automatic detecting and rejecting device for height of explosive cylinder of basic detonator - Google Patents
Automatic detecting and rejecting device for height of explosive cylinder of basic detonator Download PDFInfo
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- CN202562442U CN202562442U CN2012202454787U CN201220245478U CN202562442U CN 202562442 U CN202562442 U CN 202562442U CN 2012202454787 U CN2012202454787 U CN 2012202454787U CN 201220245478 U CN201220245478 U CN 201220245478U CN 202562442 U CN202562442 U CN 202562442U
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Abstract
The utility model relates to the technical field of basic detonator detection, and discloses an automatic detecting and rejecting device for heights of explosive cylinders of basic detonators. The device comprises an explosion proofing chamber, an automatic mold conveying system, an explosive cylinder height detecting system and a waste-product rejecting device, wherein the automatic mold conveying system is used for conveying a mold carrying a plurality of detonators to the explosion proofing chamber; the explosive cylinder height detecting system is arranged in the explosion proofing chamber, and is provided with a lifting cylinder and a fiber optic displacement sensor connected with the lifting cylinder, and the lifting cylinder and the fiber optic displacement sensor are respectively connected with a computer which is arranged outside the explosion proofing chamber through PLC; and the waste-product rejecting device, which is arranged in the explosion proofing chamber and connected with the computer through the PLC, is used for rejecting detonators having unqualified heights of the explosive cylinders. According to the automatic detecting and rejecting device for height of the explosive cylinders of the basic detonators, the production efficiency is high, the detection is accurate, the missing detection can be avoided, and the human-machine isolating safe production can be realized.
Description
Technical field
The utility model relates to basal detonator detection technique field, is specifically related to the highly automated detection of a kind of basal detonator powder column, device for eliminating.
Technical field
The utility model relates to basal detonator detection technique field, is specifically related to the highly automated detection of a kind of basal detonator powder column, device for eliminating.
Background technology
Detonator is a kind of main initiating device of blasting engineering, and its effect is to produce to detonate to ignite various explosives and primacord fuse, detonating primer.In the production run of detonator; Often because the control of the explosive load of delay powder is inaccurate or factor such as raw material defective, and cause the detonator of producing to produce various defectives, common defective has: the total charge of delay powder is many or few; Cause the powder column of forming by delay powder high or low; And lacking strengthening cap etc., these defectives can have a strong impact on the detonator performance, even cause peril.
At present, the detection of detonator defective is mainly relied on manual detection, its detection efficiency is low, and often because artificial factor, causes erroneous judgement easily and fails to judge, and in addition, also not only has potential safety hazard.
Background technology
Detonator is a kind of main initiating device of blasting engineering, and its effect is to produce to detonate to ignite various explosives and primacord fuse, detonating primer.In the production run of detonator; Often because the control of the explosive load of delay powder is inaccurate or factor such as raw material defective, and cause the detonator of producing to produce various defectives, common defective has: the total charge of delay powder is many or few; Cause the powder column of forming by delay powder high or low; And lacking strengthening cap etc., these defectives can have a strong impact on the detonator performance, even cause peril.
At present, the detection of detonator defective is mainly relied on manual detection, its detection efficiency is low, and often because artificial factor, causes erroneous judgement easily and fails to judge, and in addition, also not only has potential safety hazard.
The utility model content
The shortcoming that the purpose of the utility model is to overcome prior art provides a kind of production efficiency height, detects accurately, can avoid omission and can realize the highly automated detection of basal detonator powder column, the device for eliminating that man-machine isolation safe is produced with not enough.
The utility model provides the highly automated detection of a kind of basal detonator powder column, device for eliminating, and it comprises:
Explosion-proof;
The mould that is used for being mounted with a plurality of detonators is transported to the mould automatic transmission system in said explosion-proof;
Powder column height detection system; Said powder column height detection system is arranged in said explosion-proof; The optical fibre displacement sensor that it has lift cylinder and is connected with lift cylinder, and said lift cylinder is connected with the computing machine that is arranged on outside said explosion-proof through PLC respectively with said optical fibre displacement sensor; And
The goods rejection device, said goods rejection device is arranged in said explosion-proof, and is connected with computing machine through said PLC, is used to reject the underproof detonator of powder column height.
Compared with prior art, the highly automated detection of the utility model basal detonator powder column, device for eliminating have following advantage and effect:
(1) the utility model adopts computing machine to combine with PLC and controls the running of powder column height detection system and goods rejection device, realizes automated production, has improved production efficiency greatly.
(2) the utility model is through the powder column height of optical fibre displacement sensor detection detonator, and it is accurate and fast to detect, and guarantees 100% by a check, prevents that the underproof detonator of powder column height from passing to follow-up other operation, the minimizing rejection rate.
(3) the utility model comes control setting at explosion-proof interior powder column height detection system and goods rejection device through being arranged on explosion-proof outer computing machine; Detect the powder column height and reject underproof detonator; Thereby realize that man-machine isolation produces automatically; Significantly reduce potential safety hazard, from having improved the safety in production level in essence, and in production practices, gather in the crops good result.
Said mould automatic transmission system has support, rack-mount supporting plate, pushes away mould cylinder I and push away tringle I and baffle plate, and an end of said supporting plate is positioned at outside said explosion-proof, and the other end gets in said explosion-proof through explosion proof window; The said mould cylinder I that pushes away is installed in said explosion-proof the outer end of being positioned at of said supporting plate, and it is connected with the computing machine that is arranged on outside said explosion-proof through PLC; Saidly push away the tringle I and push away mould cylinder I and be connected; Said baffle plate is installed in said explosion-proof the end of being positioned at of said supporting plate, is used to stop mould.
Said goods rejection device have be used for mould shift onto part eject station push away mould cylinder II and push away mould gas bar, the rejecting cylinder that is used to eject defective detonator with reject bar and be used to press from both sides clamping cylinder and the clamping plate that remove defective detonator.
Said PLC is Siemens S7-200PLC.
Said computing machine is equipped with operation screen software, and operation screen software is Siemens configuration programming Wincc.V6.2 software.
The utility model content
The shortcoming that the purpose of the utility model is to overcome prior art provides a kind of production efficiency height, detects accurately, can avoid omission and can realize the highly automated detection of basal detonator powder column, the device for eliminating that man-machine isolation safe is produced with not enough.
The utility model provides the highly automated detection of a kind of basal detonator powder column, device for eliminating, and it comprises:
Explosion-proof;
The mould that is used for being mounted with a plurality of detonators is transported to the mould automatic transmission system in said explosion-proof;
Powder column height detection system; Said powder column height detection system is arranged in said explosion-proof; The optical fibre displacement sensor that it has lift cylinder and is connected with lift cylinder, and said lift cylinder is connected with the computing machine that is arranged on outside said explosion-proof through PLC respectively with said optical fibre displacement sensor; And
The goods rejection device, said goods rejection device is arranged in said explosion-proof, and is connected with computing machine through said PLC, is used to reject the underproof detonator of powder column height.
Compared with prior art, the highly automated detection of the utility model basal detonator powder column, device for eliminating have following advantage and effect:
(1) the utility model adopts computing machine to combine with PLC and controls the running of powder column height detection system and goods rejection device, realizes automated production, has improved production efficiency greatly.
(2) the utility model is through the powder column height of optical fibre displacement sensor detection detonator, and it is accurate and fast to detect, and guarantees 100% by a check, prevents that the underproof detonator of powder column height from passing to follow-up other operation, the minimizing rejection rate.
(3) the utility model comes control setting at explosion-proof interior powder column height detection system and goods rejection device through being arranged on explosion-proof outer computing machine; Detect the powder column height and reject underproof detonator; Thereby realize that man-machine isolation produces automatically; Significantly reduce potential safety hazard, from having improved the safety in production level in essence, and in production practices, gather in the crops good result.
Said mould automatic transmission system has support, rack-mount supporting plate, pushes away mould cylinder I and push away tringle I and baffle plate, and an end of said supporting plate is positioned at outside said explosion-proof, and the other end gets in said explosion-proof through explosion proof window; The said mould cylinder I that pushes away is installed in said explosion-proof the outer end of being positioned at of said supporting plate, and it is connected with the computing machine that is arranged on outside said explosion-proof through PLC; Saidly push away the tringle I and push away mould cylinder I and be connected; Said baffle plate is installed in said explosion-proof the end of being positioned at of said supporting plate, is used to stop mould.
Said goods rejection device have be used for mould shift onto part eject station push away mould cylinder II and push away mould gas bar, the rejecting cylinder that is used to eject defective detonator with reject bar and be used to press from both sides clamping cylinder and the clamping plate that remove defective detonator.
Said PLC is Siemens S7-200PLC.
Said computing machine is equipped with operation screen software, and operation screen software is Siemens configuration programming Wincc.V6.2 software.
Description of drawings
Fig. 1 is the structural representation of the highly automated detection of the utility model basal detonator powder column, device for eliminating.
Description of drawings
Fig. 1 is the structural representation of the highly automated detection of the utility model basal detonator powder column, device for eliminating.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but the embodiment of the utility model is not limited thereto.
Please with reference to Fig. 1; The utility model provides the highly automated detection of a kind of basal detonator powder column, device for eliminating; Programmable logic controller (PLC)) and computing machine 6 it comprises: explosion-proof 1, mould automatic transmission system 2, powder column height detection system 3, goods rejection device 4, PLC5 (Programmable Logic Controller, Chinese:.
Said explosion-proof 1 its be provided with explosion proof window 11.
Said mould automatic transmission system 2, said mould automatic transmission system 2 have support 21, be installed in supporting plate 22 on the support 21, push away mould cylinder I 23 and push away tringle I 24, baffle plate 25 and guide plate (not shown).One end of said supporting plate 22 is positioned at outside said explosion-proof 1, and the other end gets in said explosion-proof 1 through explosion proof window; The said mould cylinder I 23 that pushes away is installed in said explosion-proof the 1 outer end of being positioned at of said supporting plate 22, and it is connected with the computing machine 6 that is arranged on outside said explosion-proof 1 through PLC5; Saidly push away tringle I 24 and push away mould cylinder I 23 and be connected; Said baffle plate 25 is installed in said explosion-proof 1 end of being positioned at of said supporting plate 22, is used for the mould that is mounted with a plurality of detonators 71 7 is blocked; Said guide plate is installed in the both sides of supporting plate 22, is used to guide mould 7 and moves, and makes mould 7 not squint.
Said powder column height detection system 3 is arranged in said explosion-proof 1; The optical fibre displacement sensor 32 that it has lift cylinder I 31 and is connected with lift cylinder I 31, and said lift cylinder I 31 is connected with the computing machine 6 that is arranged on outside said explosion-proof 1 through PLC5 respectively with said optical fibre displacement sensor 32.Optical fibre displacement sensor 32 mainly is made up of power supply, light source, fiber transmission device 321, photelectric receiver and signal processing system etc.
Said goods rejection device 4 is arranged in said explosion-proof 1, and is connected with computing machine 6 through said PLC5, is used to reject the underproof detonator 71 of powder column height.Said goods rejection device 4 has the mould of pushing away cylinder II (not shown), pushes away mould gas bar II (not shown), rejects cylinder 41, rejects bar 42, clamps cylinder 43 and clamping plate 44.Saidly push away mould gas bar II and push away mould cylinder II and be connected, be used for mould 7 is pushed to part eject station; Said rejecting bar 42 is connected with rejecting cylinder 41, is used to eject defective detonator 71; Said clamping plate 44 are connected with clamping cylinder 43, are used for folder and remove defective detonator 71.
Said PLC5 is Siemens S7-200PLC5, and establishment in advance has control program among the PLC5; Said computing machine 6 is equipped with operation screen software, and operation screen software is Siemens configuration programming Wincc.V6.2 software.
The course of work of the highly automated detection of the utility model basal detonator powder column, device for eliminating is following:
At first; The mould that is mounted with a plurality of detonators 71 7 is transported on the supporting plate 22; Operation screen software through computing machine 6; The mould cylinder that pushes away of control mould 7 automatic transmission systems 2 pushes away tringle I 24, and utilization pushes away tringle I 24 mould 7 is pushed in explosion-proof 1 along supporting plate 22 from explosion proof window then, and stops through baffle plate 25 and to locate.
Then, through the lift cylinder I 31 of the said powder column height detection of computing machine 6 controls system 3, the fiber transmission device 321 of optical fibre displacement sensor 32 is sent in the housing of detonator 71; At this moment, the light source of optical fibre displacement sensor 32 sends cold light source, and through fiber transmission device 321 leaded lights; Signal processing module is judged the powder column height according to the power that reflects light beam then, and flows to PLC5 to the powder column altitude signal, and PLC5 judges according to altitude signal whether detonator 71 powder column height are qualified; If it is defective; Then the underproof detonator 71 of powder column height is rejected,, then be sent to next station if qualified through said goods rejection device 4.Wherein, powder column height acceptance value is freely to set according to different model detonator 71, can when writing control program, set.
It is specific as follows that above-mentioned detonator is rejected process:
At first, shift mould 7 onto part eject station through pushing away mould cylinder II, then; Rejecting cylinder 41 through goods rejection device 4 promotes to reject bar 42, underproof detonator 71 is ejected from the bottom up, after underproof detonator 71 ejects; Clamp cylinder 43 and drive clamping plate 44 declines, underproof detonator 71 is clamped, then; Reject cylinder 41 withdrawals, push away mould cylinder II mould 7 is released part eject station, after mould 7 is pushed out part eject station; Clamp cylinder 43 and unclamp clamping plate 44, underproof detonator 71 falls into waste material box 8.
Compared with prior art, the utlity model has following advantage and effect:
(1) the utility model adopts computing machine to combine with PLC and controls the running of powder column height detection system and goods rejection device; And through in PLC, carrying out the establishment of control program in advance; Realization is to the automatic detection of detonator; And computing machine is provided with operation screen software the highly automated detection of basal detonator powder column, device for eliminating carried out manually or operation automatically, thereby improved production efficiency greatly.
(2) the utility model is through the powder column height of optical fibre displacement sensor detection detonator, and it is accurate and fast to detect, and guarantees 100% by a check, prevents that the underproof detonator of powder column height from passing to follow-up other operation, the minimizing rejection rate.
(3) the utility model comes control setting at explosion-proof interior powder column height detection system and goods rejection device through being arranged on explosion-proof outer computing machine; Detect the powder column height and reject underproof detonator; Thereby realize that man-machine isolation produces automatically; Significantly reduce potential safety hazard, from having improved the safety in production level in essence, and in production practices, gather in the crops good result.
The foregoing description is the utility model preferred implementation; But the embodiment of the utility model is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit and the principle of the utility model, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within the protection domain of the utility model.
The highly automated detection of a kind of basal detonator powder column, device for eliminating
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but the embodiment of the utility model is not limited thereto.
Please with reference to Fig. 1; The utility model provides the highly automated detection of a kind of basal detonator powder column, device for eliminating; Programmable logic controller (PLC)) and computing machine 6 it comprises: explosion-proof 1, mould automatic transmission system 2, powder column height detection system 3, goods rejection device 4, PLC5 (Programmable Logic Controller, Chinese:.
Said explosion-proof 1 its be provided with explosion proof window 11.
Said mould automatic transmission system 2, said mould automatic transmission system 2 have support 21, be installed in supporting plate 22 on the support 21, push away mould cylinder I 23 and push away tringle I 24, baffle plate 25 and guide plate (not shown).One end of said supporting plate 22 is positioned at outside said explosion-proof 1, and the other end gets in said explosion-proof 1 through explosion proof window; The said mould cylinder I 23 that pushes away is installed in said explosion-proof the 1 outer end of being positioned at of said supporting plate 22, and it is connected with the computing machine 6 that is arranged on outside said explosion-proof 1 through PLC5; Saidly push away tringle I 24 and push away mould cylinder I 23 and be connected; Said baffle plate 25 is installed in said explosion-proof 1 end of being positioned at of said supporting plate 22, is used for the mould that is mounted with a plurality of detonators 71 7 is blocked; Said guide plate is installed in the both sides of supporting plate 22, is used to guide mould 7 and moves, and makes mould 7 not squint.
Said powder column height detection system 3 is arranged in said explosion-proof 1; The optical fibre displacement sensor 32 that it has lift cylinder I 31 and is connected with lift cylinder I 31, and said lift cylinder I 31 is connected with the computing machine 6 that is arranged on outside said explosion-proof 1 through PLC5 respectively with said optical fibre displacement sensor 32.Optical fibre displacement sensor 32 mainly is made up of power supply, light source, fiber transmission device 321, photelectric receiver and signal processing system etc.
Said goods rejection device 4 is arranged in said explosion-proof 1, and is connected with computing machine 6 through said PLC5, is used to reject the underproof detonator 71 of powder column height.Said goods rejection device 4 has the mould of pushing away cylinder II (not shown), pushes away mould gas bar II (not shown), rejects cylinder 41, rejects bar 42, clamps cylinder 43 and clamping plate 44.Saidly push away mould gas bar II and push away mould cylinder II and be connected, be used for mould 7 is pushed to part eject station; Said rejecting bar 42 is connected with rejecting cylinder 41, is used to eject defective detonator 71; Said clamping plate 44 are connected with clamping cylinder 43, are used for folder and remove defective detonator 71.
Said PLC5 is Siemens S7-200PLC5, and establishment in advance has control program among the PLC5; Said computing machine 6 is equipped with operation screen software, and operation screen software is Siemens configuration programming Wincc.V6.2 software.
The course of work of the highly automated detection of the utility model basal detonator powder column, device for eliminating is following:
At first; The mould that is mounted with a plurality of detonators 71 7 is transported on the supporting plate 22; Operation screen software through computing machine 6; The mould cylinder that pushes away of control mould 7 automatic transmission systems 2 pushes away tringle I 24, and utilization pushes away tringle I 24 mould 7 is pushed in explosion-proof 1 along supporting plate 22 from explosion proof window then, and stops through baffle plate 25 and to locate.
Then, through the lift cylinder I 31 of the said powder column height detection of computing machine 6 controls system 3, the fiber transmission device 321 of optical fibre displacement sensor 32 is sent in the housing of detonator 71; At this moment, the light source of optical fibre displacement sensor 32 sends cold light source, and through fiber transmission device 321 leaded lights; Signal processing module is judged the powder column height according to the power that reflects light beam then, and flows to PLC5 to the powder column altitude signal, and PLC5 judges according to altitude signal whether detonator 71 powder column height are qualified; If it is defective; Then the underproof detonator 71 of powder column height is rejected,, then be sent to next station if qualified through said goods rejection device 4.Wherein, powder column height acceptance value is freely to set according to different model detonator 71, can when writing control program, set.
It is specific as follows that above-mentioned detonator is rejected process:
At first, shift mould 7 onto part eject station through pushing away mould cylinder II, then; Rejecting cylinder 41 through goods rejection device 4 promotes to reject bar 42, underproof detonator 71 is ejected from the bottom up, after underproof detonator 71 ejects; Clamp cylinder 43 and drive clamping plate 44 declines, underproof detonator 71 is clamped, then; Reject cylinder 41 withdrawals, push away mould cylinder II mould 7 is released part eject station, after mould 7 is pushed out part eject station; Clamp cylinder 43 and unclamp clamping plate 44, underproof detonator 71 falls into waste material box 8.
Compared with prior art, the utlity model has following advantage and effect:
(1) the utility model adopts computing machine to combine with PLC and controls the running of powder column height detection system and goods rejection device; And through in PLC, carrying out the establishment of control program in advance; Realization is to the automatic detection of detonator; And computing machine is provided with operation screen software the highly automated detection of basal detonator powder column, device for eliminating carried out manually or operation automatically, thereby improved production efficiency greatly.
(2) the utility model is through the powder column height of optical fibre displacement sensor detection detonator, and it is accurate and fast to detect, and guarantees 100% by a check, prevents that the underproof detonator of powder column height from passing to follow-up other operation, the minimizing rejection rate.
(3) the utility model comes control setting at explosion-proof interior powder column height detection system and goods rejection device through being arranged on explosion-proof outer computing machine; Detect the powder column height and reject underproof detonator; Thereby realize that man-machine isolation produces automatically; Significantly reduce potential safety hazard, from having improved the safety in production level in essence, and in production practices, gather in the crops good result.
The foregoing description is the utility model preferred implementation; But the embodiment of the utility model is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit and the principle of the utility model, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within the protection domain of the utility model.
Claims (5)
1. the highly automated detection of basal detonator powder column, device for eliminating is characterized in that, comprising:
Explosion-proof;
The mould that is used for being mounted with a plurality of detonators is transported to the mould automatic transmission system in said explosion-proof;
Powder column height detection system; Said powder column height detection system is arranged in said explosion-proof; The optical fibre displacement sensor that it has lift cylinder and is connected with lift cylinder, and said lift cylinder is connected with the computing machine that is arranged on outside said explosion-proof through PLC respectively with said optical fibre displacement sensor; And
The goods rejection device, said goods rejection device is arranged in said explosion-proof, and is connected with computing machine through said PLC, is used to reject the underproof detonator of powder column height.
2. the highly automated detection of basal detonator powder column as claimed in claim 1, device for eliminating; It is characterized in that: said mould automatic transmission system has support, rack-mount supporting plate, pushes away mould cylinder I and push away tringle I and baffle plate; One end of said supporting plate is positioned at outside said explosion-proof, and the other end gets in said explosion-proof through explosion proof window; The said mould cylinder I that pushes away is installed in said explosion-proof the outer end of being positioned at of said supporting plate, and it is connected with the computing machine that is arranged on outside said explosion-proof through PLC; Saidly push away the tringle I and push away mould cylinder I and be connected; Said baffle plate is installed in said explosion-proof the end of being positioned at of said supporting plate, is used to stop mould.
3. the highly automated detection of basal detonator powder column as claimed in claim 1, device for eliminating is characterized in that: the goods rejection device have be used for mould shift onto part eject station push away mould cylinder II and push away mould gas bar, the rejecting cylinder that is used to eject defective detonator with reject bar and be used to press from both sides clamping cylinder and the clamping plate that remove defective detonator.
4. the highly automated detection of basal detonator powder column as claimed in claim 1, device for eliminating is characterized in that: said PLC is Siemens S7-200PLC.
5. the highly automated detection of basal detonator powder column as claimed in claim 1, device for eliminating, it is characterized in that: said computing machine is equipped with operation screen software, and operation screen software is Siemens configuration programming Wincc.V6.2 software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202454787U CN202562442U (en) | 2012-05-28 | 2012-05-28 | Automatic detecting and rejecting device for height of explosive cylinder of basic detonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202454787U CN202562442U (en) | 2012-05-28 | 2012-05-28 | Automatic detecting and rejecting device for height of explosive cylinder of basic detonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202562442U true CN202562442U (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202454787U Expired - Fee Related CN202562442U (en) | 2012-05-28 | 2012-05-28 | Automatic detecting and rejecting device for height of explosive cylinder of basic detonator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202562442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138544A (en) * | 2018-10-24 | 2019-01-04 | 中国兵器装备集团自动化研究所 | A kind of explosion-proof processing workshop system for powder column Compound Machining |
| CN115006710A (en) * | 2022-06-20 | 2022-09-06 | 楚天科技股份有限公司 | Grain filling system and grain filling method |
-
2012
- 2012-05-28 CN CN2012202454787U patent/CN202562442U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138544A (en) * | 2018-10-24 | 2019-01-04 | 中国兵器装备集团自动化研究所 | A kind of explosion-proof processing workshop system for powder column Compound Machining |
| CN115006710A (en) * | 2022-06-20 | 2022-09-06 | 楚天科技股份有限公司 | Grain filling system and grain filling method |
| CN115006710B (en) * | 2022-06-20 | 2024-05-14 | 楚天科技股份有限公司 | Grain filling system and grain filling method |
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| 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 |
Granted publication date: 20121128 Termination date: 20180528 |
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| CF01 | Termination of patent right due to non-payment of annual fee |