CN202491027U - Excavating bucket positioning machine and excavating feeding system - Google Patents
Excavating bucket positioning machine and excavating feeding system Download PDFInfo
- Publication number
- CN202491027U CN202491027U CN2012201640995U CN201220164099U CN202491027U CN 202491027 U CN202491027 U CN 202491027U CN 2012201640995 U CN2012201640995 U CN 2012201640995U CN 201220164099 U CN201220164099 U CN 201220164099U CN 202491027 U CN202491027 U CN 202491027U
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- fixed
- bucket
- positioner
- guide rail
- driving mechanism
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Abstract
The utility model provides an excavating bucket positioning machine which comprises an upright column, a rotating body fixed on one side of the upright column in a rotating mode, a cantilever fixed on the rotating body, an excavating bucket positioning device fixed on the cantilever, and a first drive motor driving the rotating body to rotate. The excavating bucket positioning device comprises a substrate, a first fixing frame fixed on the substrate, a first driving mechanism fixed on the first fixing frame, two first positioning blocks and two first positioning frames, wherein the two first positioning blocks fixed on the first driving mechanism are driven by the first driving mechanism to be close to or far away from each other, and the two first positioning frames are respectively fixed by the two first positioning blocks. The first positioning frames are provided with first positioning pins which are oppositely arranged and respectively matched with two ears. The two ears are oppositely arranged on an excavating bucket to locate so that the excavating bucket can be accurately positioned.
Description
Technical field
The utility model relates to bucket manufacturing technology field, relates in particular to bucket positioner and bucket feed system in a kind of bucket welding process.
Background technology
Bucket generally is installed on the excavator and uses.This kind bucket is generally the steel construction weldment of shape more complicated, its Heavy Weight and bulky, thus bring certain degree of difficulty to welding fabrication.And the weld seam of this kind steel construction weldment welding moulding is more and irregular, and it is irregular to add the planform of bucket own, causes the feeding of this kind bucket inconvenient.Carry out the feeding of bucket in the prior art through crane, this kind feeding style makes the bucket placement location be difficult to orientation, and after feeding, the erose bucket of this kind is difficult to fix.But as not reaching best welding position, welding quality does not just reach requirement; In addition, adopt artificial efficient of carrying out the bucket upset low, and do not reach safety, efficient, save time, the labour-saving requirement.
Therefore, be necessary to provide a kind of improved bucket positioner and bucket feed system to address the above problem.
The utility model content
The purpose of the utility model is to provide the bucket positioner and the bucket feed system of a kind of feeding convenience and accurate positioning.
For realizing above-mentioned utility model purpose; The utility model provides a kind of bucket positioner; Comprise column, rotational fixation at the rotary body of column one side, be fixed on cantilever on the rotary body, be fixed on bucket positioner and first drive motors of driven in rotation body rotation on the cantilever; Said bucket positioner comprises substrate, be fixed on first fixed mount on the substrate, be fixed on first driving mechanism on first fixed mount, be fixed on first driving mechanism and under the driving of first driving mechanism each other near or away from two first locating pieces and two first locating racks that fix with two said first locating pieces respectively, said first locating rack comprise be oppositely arranged with respectively with bucket on match first alignment pin of location of two ears being oppositely arranged.
As the further improvement of the utility model, said positioner is fixed on several first slide blocks on first guide rail with also comprising first guide rail that is separately fixed at the first fixed mount upper and lower sides and activity, and said first locating rack also fixes with first slide block.
Further improvement as the utility model; Each said first locating rack also comprises the U type frame in order to fixing said first alignment pin; Said U type frame comprises at first fixed head of upper and lower sides and second fixed head between first fixed head; Said first fixed head fixes with first slide block of the first fixed mount upper and lower sides respectively, and said first locating piece and said first alignment pin are separately fixed at the said second fixed head both sides.
Further improvement as the utility model; Said positioner also comprises second fixed mount that is fixed on first fixed mount below on the substrate and is fixed on second locating rack on second fixed mount that said second locating rack comprises first location-plate and second location-plate that are oppositely arranged, second alignment pin that is fixed on second driving mechanism on first location-plate and is fixed on second driving mechanism end and is provided with towards second location-plate.
Further improvement as the utility model; Said second fixed mount comprises first support body, be fixed on second guide rail and 4 wheel driven actuation mechanism on first support body, be fixed on to activity second slide block on second guide rail and be fixed on second locating piece on the 4 wheel driven actuation mechanism; Said second guide rail and first guide rail laterally arrange, and said second locating rack is fixed on said second slide block and second locating piece.
Further improvement as the utility model; Said second fixed mount also comprises second support body that is fixed on the substrate, be fixed on the 3rd guide rail and the 3rd driving mechanism on second support body, be fixed on to activity the 3rd slide block on the 3rd guide rail and be fixed on the 3rd locating piece on the 3rd driving mechanism; Said first support body and the 3rd slide block and the 3rd locating piece fix and move said second guide rail and the perpendicular setting of the 3rd guide rail at lower edge the 3rd guide rail that orders about of the 3rd driving mechanism.
As the further improvement of the utility model, said bucket positioner also comprises second drive motors that the said bucket positioner of driving rotates on cantilever.
For realizing above-mentioned utility model purpose; The utility model also provides a kind of bucket feed system, comprises aforementioned bucket positioner, a bucket is transported to feeding trolley on the said bucket positioner, feed trolley along the ground rail that predetermined direction moves and the control device of control bucket positioner and feeding trolley work.
As the further improvement of the utility model, said feeding trolley comprises that dolly body, activity are fixed on the dolly body with the rack of placing bucket and drive the elevating mechanism that said rack moves up and down.
Further improvement as the utility model; Said elevating mechanism comprise the line slideway that is arranged on the dolly body, the up-down casing that matches with line slideway and be fixed on the dolly body and the up-down casing on oil cylinder; Said rack is fixed on said up-down casing top, and along with moving of up-down casing.
The beneficial effect of the utility model is: the utility model bucket positioner through first drive mechanism, first locating piece on the bucket positioner and second locating piece drive two first alignment pins being oppositely arranged each other near or away from; Thereby make two first alignment pins respectively with bucket on two ears being oppositely arranged location of matching, thereby can carry out accurate localization to bucket; And drive the rotation of bucket positioner through the first drive motor drives rotary body, can bucket be rotated to predetermined angular, formation ship type weld seam when making things convenient for welding robot that bucket weld; In addition, in the utility model bucket feed system, after feeding trolley is delivered to positioner with bucket, also can be through bucket positioner rotation so that bucket one end is raise, and then make things convenient for withdrawing from of feeding trolley, and then realize carrying the automation of bucket.This shows that the feeding of the utility model bucket feed system is convenient, fast, safety and can effectively increasing work efficiency.
Description of drawings
Fig. 1 is the stereogram of the utility model bucket positioner;
Fig. 2 is the part exploded view of bucket positioner among Fig. 1;
Fig. 3 is the user mode figure that the bucket positioner on the bucket positioner is located a bucket among Fig. 2;
Fig. 4 is the view of another angle of Fig. 3;
Fig. 5 is the part exploded view of bucket positioner among Fig. 2;
Fig. 6 is the view of another angle of Fig. 5;
Fig. 7 is the part exploded view of second localization part on the bucket positioner among Fig. 5;
Fig. 8 is the view of another angle of Fig. 7;
Fig. 9 is the stereogram of the utility model bucket feed system;
Figure 10 is the cutaway view of the feeding trolley in the bucket feed system among Fig. 9;
Figure 11 is the user mode figure of bucket feed system and a bucket among Fig. 9, shows that the bucket positioner rotates up bucket so that the state that feeding trolley withdraws from.
The specific embodiment
Below will combine each embodiment shown in the drawings that the utility model is described in detail.But these embodiments do not limit the utility model, and the conversion on the structure that those of ordinary skill in the art makes according to these embodiments, method or the function all is included in the protection domain of the utility model.
Please referring to figs. 1 through shown in Figure 8 be a preferred embodiments of the utility model bucket positioner 100.The utility model bucket positioner 100 is handled in order to bucket 800 is carried out displacement, and then a convenient welding robot (not shown) accurately welds bucket 800.Said bucket 800 generally includes the ear 801 that matches and be connected with the swing arm (not shown) of excavator.Said ear 801 comprises a pair of first ear 802 and a pair of second ear 803 that is positioned at first ear, 802 belows that is positioned at upside.Be respectively equipped with a perforation 804 in said first ear 802 and second ear 803.The center of circle of the center of circle of the perforation 804 of said first ear 802 and the perforation 804 of second ear 803 is not located along the same line along the vertical direction.The utility model bucket positioner 100 comprise column 1, rotational fixation at the rotary body 21 of column 1 one sides, be fixed on cantilever 22 on the rotary body, be fixed on bucket positioner 3 on the cantilever 22, first drive motors 11 of driven in rotation body 21 rotations and drive second drive motors (not shown) that said bucket positioner 3 rotates on cantilever 22.
Please with reference to Fig. 1 and shown in Figure 2, said column 1 has the base 12 that fixes on the ground and is fixed on the cylinder 13 on the base 12.Said cylinder 13 1 sides are provided with first rotation and support 131.Said first drive motors 11 is fixed on cylinder 13 opposite sides.Said rotary body 21 laterally arranges with said column 1, and includes and support the 131 second fixing rotations that match with said first rotation and support 211 and first rotating shaft 212 that matches with first drive motors 11.Said cantilever 22 is fixed on the rotary body 21, and can rotate with the rotation of rotary body 21.Said cantilever 22 supports 221 with rotary body 21 vertical the 3rd rotations that are provided with and comprise fixing said bucket positioner 3.
Please with reference to Fig. 2 to shown in Figure 8, said bucket positioner 3 comprises substrate 31, be fixed on substrate 31 1 sides with fixing first localization part 41 that matches with two said first ears 802, be fixed on first localization part, 41 belows on the substrate 31 second localization part 51, be fixed on second rotating shaft 311 of substrate 31 opposite sides and be formed at the fixed area 312 around second rotating shaft 311.Said fixed area 312 and the 3rd rotation are supported 221 and are fixed.Said second rotating shaft 311 matches with second drive motors so that bucket positioner 3 can be around 311 rotations of second rotating shaft; Thereby make things convenient for welding robot that the bucket 800 that is fixed on the utility model bucket positioner 100 is welded, and can form ship type weld seam.Said second localization part 51 is fixing in order to match with second ear 803, thereby can prevent bucket 800 rotation automatically on said bucket positioner 3.
Please with reference to Fig. 3 to shown in Figure 6, said first localization part 41 comprise the lengthwise that is fixed on substrate 31 upsides first fixed mount 42, be fixed on first guide rail 43 and first driving mechanism 44 on first fixed mount 42, activity be fixed on several first slide blocks 45 on first guide rail 43, be fixed on first driving mechanism 44 and under the driving of first driving mechanism 44 mutual near perhaps away from two first locating pieces 46 and two first locating racks 47 that fix with two first locating pieces 46 and first slide block 45 respectively.Two said first locating racks 47 can be under the drive of first locating piece 46 along first guide rail 43 each other near or away from.
Said first fixed mount, 42 upper and lower sides are equipped with two said first guide rails 43 that extend along said first fixed mount, 42 length directions.Said first localization part 41 comprises several said first slide blocks 45 that match with two said first guide rails 43 respectively.Said first driving mechanism 44 is provided with first driving shaft 441 that extends along first fixed mount 42 length directions, and movable be fixed on first driving shaft 441 and can be each other near perhaps away from a pair of moving bar 442.Said driving shaft 441 is along the vertical direction between two said first guide rails 43.Two first locating pieces 46 are separately fixed on two moving bars 442 and moving of tappet 442 and moving.Each first locating piece 46 is provided with first fixing hole 461 that is fixed on the moving bar 442 and first pedestal 462 in order to fix with said first locating rack 46.Said first pedestal 462 parallels with said substrate 31.Each said first locating rack 47 comprises a U type frame 471 and is fixed on first alignment pin 472 on the U type frame 471.Said U type frame 471 openings are towards substrate 31 direction settings, and comprise at first fixed head 4711 of upper and lower sides and second fixed head 4712 between first fixed head 4711.Said first fixed head 4711 fixes with said first slide block 45, thereby the locating rack 47 of winning is moved along first guide rail 43.Said first locating piece 46 is separately fixed at said second fixed head 4712 both sides with said first alignment pin 472, thereby the locating rack 47 of winning can be moved under the ordering about of first driving mechanism 44.The all tapered setting of first alignment pin, 472 ends and two said taper first alignment pins 472 on two first locating racks 47 are oppositely arranged.Two said taper first alignment pins 472 can be under the driving of first driving mechanism 44 each other near or away from, thereby match location from two first ear 802 outsides with perforation 804 in first ear 802 respectively, the perforation 804 of perhaps withdrawing from first ear 802 is with release bucket 800.
Please combine Fig. 3, Fig. 4, Fig. 7 and shown in Figure 8, said second localization part 51 comprises second fixed mount 52 that is fixed on first fixed mount, 42 belows on the substrate 31 and is fixed on second locating rack 53 on second fixed mount 52.Said second fixed mount 52 comprises second support body 521 that is fixed on the substrate 31; Be fixed on the 3rd guide rail 522 and the 3rd driving mechanism 523 on second support body 521; Be fixed on to activity the 3rd slide block 524 on the 3rd guide rail 522; Be fixed on the 3rd locating piece 525 on the 3rd driving mechanism 523; Be fixed on first support body 526 on the 3rd slide block 524 and the 3rd locating piece 525; Be fixed on second guide rail 527 and the 4 wheel driven actuation mechanism 529 on first support body 526; Be fixed on to activity second slide block 528 on second guide rail 527 and be fixed on second locating piece 520 on the 4 wheel driven actuation mechanism 529.Said second guide rail 527 and first guide rail 43 laterally arrange, and with the 522 vertical settings of the 3rd guide rail.Said the 3rd driving mechanism 523 moves up and down along the 3rd guide rail 522 in order to drive first support body 526.Said second locating rack 53 is fixed on the 3rd slide block 524 and second locating piece 520, and can move at the driving lower edge of 4 wheel driven actuation mechanism 529 second guide rail 527.
Said second locating rack 53 comprises first location-plate 531 that is oppositely arranged along second guide rail 527 bearing of trends and second location-plate 532, be fixed on second driving mechanism 533 on first location-plate 531 and be fixed on second alignment pin 534 of second driving mechanism, 533 ends.The also tapered setting of said second alignment pin, 534 ends, and towards the 532 direction projections of second location-plate.Said second driving mechanism 533 can drive second alignment pin 534 towards perhaps moving away from second location-plate 532; Thereby make second alignment pin 534 penetrate or withdraw from second ear 803, and then between second alignment pin 534 and second location-plate 532 that second ear 803 is gripped from one second ear 803 outsides of bucket 800.
Get by above; Said bucket positioner 3 through first driving mechanism 44 drive first locating piece 46 drive two first alignment pins 472 being oppositely arranged each other near or away from; Thereby make two first alignment pins 472 respectively with bucket 800 on two first ears 802 the being oppositely arranged location of matching, thereby can carry out accurate localization to bucket 800; And said bucket positioner 3 is simple in structure, conveniently makes, cost is lower and easy to operate.In addition; Said bucket positioner 3 also is provided with second localization part 51; First support body 526 in this second localization part 51 can move up and down at lower edge the 3rd guide rail 522 that orders about of the 3rd driving mechanism 523; Second locating rack 53 that is fixed on first support body 526 can be along second guide rail, 527 move left and right, thereby the position of regulating second alignment pin 534 on second locating rack 53 is to position second ear 803 on the bucket 800; This shows; Said bucket positioner 3 can be simultaneously with bucket 800 on first ear 802 and second ear 803 location of matching; Make said bucket positioner 3 when accurately locating bucket 800; Can prevent effectively that also bucket 800 from rotating around first ear 802 or second ear 803 automatically, guarantees the accuracy that bucket 800 is welded more on said bucket positioner 3.
Please with reference to Fig. 9 to Figure 11 and combine Fig. 1 to shown in Figure 8, the utility model bucket feed system 900 that is provided with said bucket positioner 100 comprises said bucket positioner 100, a bucket 800 is transported to feeding trolley 600 on the said bucket positioner 100, feed trolley 600 along the ground rail 700 that predetermined direction moves and the control device (not shown) of control bucket positioner 100 and feeding trolley 600 work.
Said feeding trolley 600 comprises that dolly body 61, activity are fixed on the dolly body 61 with the rack 62 of placing bucket 800 and drive the elevating mechanism 63 that said rack 62 moves up and down.Said elevating mechanism 63 comprises line slideway 631, the up-down casing 632 that matches with line slideway 631 that is arranged on the dolly body 61 and is fixed on the oil cylinder 633 on dolly body 61 and the up-down casing 632.Said rack 62 is to be fixed on said up-down casing 632 tops, and can move along with moving of up-down casing 632.
The utility model bucket feed system 900 at first, is delivered to said bucket positioner 100 next doors through feeding trolley 600 with bucket 800 in use; Secondly; Feeding trolley 600 raises bucket 800 through elevating mechanism 63; So that first ear 802 of bucket 800 is between two first locating racks 47 on the bucket positioner 3, start first driving mechanism 44 this moment, make two first locating racks 47 each other near; First alignment pin 472 on first locating rack 47 penetrates in the perforation 804 of first ear 802, and firm with first ear 802 fixings; Once more, feeding trolley 600 moves down rack 62 through elevating mechanism 63, and simultaneously, bucket 800 rotates around first alignment pin 472, thereby makes second ear 803 move between first location-plate 531 and second location-plate 532 on second locating rack 53; Start second driving mechanism 533 then; Make second alignment pin 534 move towards second location-plate 532; And then make second alignment pin 534 penetrate the perforation 804 of second ear 803 from second ear, 803 outsides, and second ear 803 is gripped through second alignment pin 534 and second location-plate 532; At last, start first drive motors 11, bucket 800 is moved upward to away from an end of bucket positioner 3 is higher than feeding trolley 600, then feeding trolley 600 is withdrawed from, can accomplish the feeding of bucket 800 thus.
In sum, the utility model bucket positioner 100 carries out accurate localization through first driving mechanism 44 on the bucket positioner 3 and 472 pairs of buckets of first alignment pin 800; And drive buckets 800 rotations through first drive motors, 11 driven in rotation bodies 21 and cantilever 22, can bucket 800 be rotated to predetermined angular, form ship type weld seam when making things convenient for welding robot bucket 800 welding; In addition; In the utility model bucket feed system 900; Carry out the conveying of bucket 800 through feeding trolley 600; Elevating mechanism through feeding trolley 600 63 cooperatively interacts with bucket positioner 3 on the bucket positioner 100 simultaneously, thus with bucket 800 with predetermined direction and fixed-site on bucket positioner 3, and after bucket 800 is delivered to bucket positioner 3; Also can be through bucket positioner 100 rotation so that bucket 800 1 ends are raise, and then make things convenient for withdrawing from of feeding trolley 600.This shows that the utility model bucket feed system 900 can realize carrying the automatic assembly line of bucket 800, so make feeding convenient, fast, safety and can effectively increase work efficiency.
Be to be understood that; Though this specification is described according to embodiment; But be not that each embodiment only comprises an independently technical scheme, this narrating mode of specification only is for clarity sake, and those skilled in the art should make specification as a whole; Technical scheme in each embodiment also can form other embodiments that it will be appreciated by those skilled in the art that through appropriate combination.
The listed a series of detailed description of preceding text only is specifying to the feasibility embodiment of the utility model; They are not the protection domain in order to restriction the utility model, allly do not break away from equivalent embodiment or the change that the utility model skill spirit done and all should be included within the protection domain of the utility model.
Claims (10)
1. bucket positioner; It is characterized in that; Said positioner comprise column, rotational fixation at the rotary body of column one side, be fixed on cantilever on the rotary body, be fixed on bucket positioner and first drive motors of driven in rotation body rotation on the cantilever; Said bucket positioner comprises substrate, be fixed on first fixed mount on the substrate, be fixed on first driving mechanism on first fixed mount, be fixed on first driving mechanism and under the driving of first driving mechanism each other near or away from two first locating pieces and two first locating racks that fix with two said first locating pieces respectively, said first locating rack comprise be oppositely arranged with respectively with bucket on match first alignment pin of location of two ears being oppositely arranged.
2. bucket positioner according to claim 1; It is characterized in that: said positioner is fixed on several first slide blocks on first guide rail with also comprising first guide rail that is separately fixed at the first fixed mount upper and lower sides and activity, and said first locating rack also fixes with first slide block.
3. bucket positioner according to claim 2; It is characterized in that; Each said first locating rack also comprises the U type frame in order to fixing said first alignment pin; Said U type frame comprises at first fixed head of upper and lower sides and second fixed head between first fixed head, and said first fixed head fixes with first slide block of the first fixed mount upper and lower sides respectively, and said first locating piece and said first alignment pin are separately fixed at the said second fixed head both sides.
4. bucket positioner according to claim 1; It is characterized in that; Said positioner also comprises second fixed mount that is fixed on first fixed mount below on the substrate and is fixed on second locating rack on second fixed mount that said second locating rack comprises first location-plate and second location-plate that are oppositely arranged, second alignment pin that is fixed on second driving mechanism on first location-plate and is fixed on second driving mechanism end and is provided with towards second location-plate.
5. bucket positioner according to claim 4; It is characterized in that; Said second fixed mount comprises first support body, be fixed on second guide rail and 4 wheel driven actuation mechanism on first support body, be fixed on to activity second slide block on second guide rail and be fixed on second locating piece on the 4 wheel driven actuation mechanism; Said second guide rail and first guide rail laterally arrange, and said second locating rack is fixed on said second slide block and second locating piece.
6. bucket positioner according to claim 5; It is characterized in that; Said second fixed mount also comprises second support body that is fixed on the substrate, be fixed on the 3rd guide rail and the 3rd driving mechanism on second support body, be fixed on to activity the 3rd slide block on the 3rd guide rail and be fixed on the 3rd locating piece on the 3rd driving mechanism; Said first support body and the 3rd slide block and the 3rd locating piece fix and move said second guide rail and the perpendicular setting of the 3rd guide rail at lower edge the 3rd guide rail that orders about of the 3rd driving mechanism.
7. bucket positioner according to claim 1 is characterized in that, said bucket positioner also comprises second drive motors that the said bucket positioner of driving rotates on cantilever.
8. bucket feed system; It is characterized in that said bucket feed system comprises like any described bucket positioner in the claim 1 to 6, a bucket is transported to feeding trolley on the said bucket positioner, feed trolley along the ground rail that predetermined direction moves and the control device of control bucket positioner and feeding trolley work.
9. bucket feed system according to claim 8 is characterized in that, said feeding trolley comprises that dolly body, activity are fixed on the dolly body with the rack of placing bucket and drive the elevating mechanism that said rack moves up and down.
10. bucket feed system according to claim 9; It is characterized in that; Said elevating mechanism comprise the line slideway that is arranged on the dolly body, the up-down casing that matches with line slideway and be fixed on the dolly body and the up-down casing on oil cylinder; Said rack is fixed on said up-down casing top, and along with moving of up-down casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201640995U CN202491027U (en) | 2012-04-18 | 2012-04-18 | Excavating bucket positioning machine and excavating feeding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201640995U CN202491027U (en) | 2012-04-18 | 2012-04-18 | Excavating bucket positioning machine and excavating feeding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202491027U true CN202491027U (en) | 2012-10-17 |
Family
ID=46997270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201640995U Withdrawn - After Issue CN202491027U (en) | 2012-04-18 | 2012-04-18 | Excavating bucket positioning machine and excavating feeding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202491027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672375A (en) * | 2012-04-18 | 2012-09-19 | 昆山华恒焊接股份有限公司 | Bucket positioner and bucket delivery system |
-
2012
- 2012-04-18 CN CN2012201640995U patent/CN202491027U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672375A (en) * | 2012-04-18 | 2012-09-19 | 昆山华恒焊接股份有限公司 | Bucket positioner and bucket delivery system |
| CN102672375B (en) * | 2012-04-18 | 2014-11-12 | 昆山华恒焊接股份有限公司 | Bucket positioner and bucket delivery system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121017 Effective date of abandoning: 20141112 |
|
| RGAV | Abandon patent right to avoid regrant |