CN107756613A - Maintenance bin auxiliary for concrete prefabricated element production line deposits reclaimer system - Google Patents
Maintenance bin auxiliary for concrete prefabricated element production line deposits reclaimer system Download PDFInfo
- Publication number
- CN107756613A CN107756613A CN201711132201.7A CN201711132201A CN107756613A CN 107756613 A CN107756613 A CN 107756613A CN 201711132201 A CN201711132201 A CN 201711132201A CN 107756613 A CN107756613 A CN 107756613A
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- China
- Prior art keywords
- rotating shaft
- push
- slide plate
- plate
- slide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012423 maintenance Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 230000009471 action Effects 0.000 claims abstract description 11
- 238000000605 extraction Methods 0.000 claims abstract description 9
- 235000020637 scallop Nutrition 0.000 claims description 6
- 241000237509 Patinopecten sp. Species 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000005070 sampling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 241001416181 Axis axis Species 0.000 description 1
- 241000237503 Pectinidae Species 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
The invention belongs to building product technical field, and in particular to a kind of maintenance bin auxiliary for concrete prefabricated element production line deposits reclaimer system.The system includes push-and-pull piston cylinder, and the casing wall of push-and-pull piston cylinder is hingeably secured in access machine frame, and the affixed feeding head of the piston rod rod end of push-and-pull piston cylinder；The feeding head includes slide rail and slide plate, and slide plate die station extraction direction parallel with respect to the direct of travel of slide rail；The affixed piston rod rod end of slide plate tail end, slide plate upper rotary are combined with the rotating shaft of diameter parallel die station extraction direction, and rotating shaft is driven by electric rotating machine and makees revolution action；The axial end for being relatively distant from push-and-pull piston cylinder of rotating shaft arranges the hook plate for hooking modulus platform out of maintenance bin, and the hook plate extends radially outwardly setting along rotating shaft.The present invention possesses the advantages of simple and efficient to handle and low manufacture cost, and the Fast Fixed-point accessing operation of die station at maintenance bin random layer is realized so as to aid in existing drive device.
Description
Technical field
The invention belongs to building product technical field, and in particular to a kind of maintenance for concrete prefabricated element production line
Storehouse auxiliary deposits reclaimer system.
Background technology
In concrete prefabricated element production line, prefabricated components are after the completion of casting and compacting of concrete, it is necessary in appropriate temperature
Raw hydration reaction is issued with damp condition, intensity finished parts up to standard are formed gradually to condense hardening.Because outdoor conditions is severe,
The outdoor maintenance of concrete prefabricated board easily generation crackle, therefore current concrete prefabricated element production line is mostly supported using special
Protect the online maintenance that storehouse carries out prefabricated components.With the development of social science and technology, maintenance bin is also changed into from traditional individual layer maintenance bin
The multilayer maintenance bin of multiple prefabricated components maintenances can be carried out simultaneously；In whole production process, die station through along track by material distributing machine
After spraying slurry process, vibration strike off process, polishing smoothing process, into maintenance process., it is necessary to by accessing in process is conserved
Die station is sent into the equivalent layer of multilayer maintenance bin by the mechanical arm of machine together with the prefabricated components in die station, and is finished in maintenance
Afterwards, then after being extracted out by the mechanical arm it is returned at track, to march to subsequent handling.However, above-mentioned existing curing system
Problems be present：Because the mechanical arm for accessing machine has extreme limit of travel, influenceed because the factor such as designing, assembling, mechanical arm it is dynamic
Incomplete phenomena often be present.Once mechanical arm push-and-pull die station is not in place, also just cause the hydration reaction of prefabricated components therewith
Not exclusively, and then to the final product quality of maintenance tremendous influence is brought.
The content of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of rational in infrastructure and practical to be used for coagulation
The maintenance bin auxiliary of native prefabricated components production line deposits reclaimer system, and it possesses the advantages of simple and efficient to handle and low manufacture cost,
The Fast Fixed-point accessing operation of die station at maintenance bin random layer is realized so as to aid in existing drive device.
To achieve the above object, present invention employs following technical scheme：
A kind of maintenance bin auxiliary for concrete prefabricated element production line deposits reclaimer system, it is characterised in that：The system
Include the push-and-pull piston cylinder of the parallel die station extraction direction of stroke directions, the casing wall of the push-and-pull piston cylinder is hingeably secured to access machine
In frame, and the affixed feeding head of the piston rod rod end of push-and-pull piston cylinder；The feeding head includes slide rail and is fixed in access machine
The slide plate for being oriented to and coordinating, and slide plate die station extraction direction parallel with respect to the direct of travel of slide rail are formed between slide rail in frame；
The affixed piston rod rod end of slide plate tail end, slide plate upper rotary are combined with the rotating shaft of diameter parallel die station extraction direction, and rotating shaft is by rotating
Motor drives and makees revolution action；The axial end for being relatively distant from push-and-pull piston cylinder of rotating shaft is arranged to be taken for being hooked out of maintenance bin
The hook plate of die station, the hook plate extend radially outwardly setting along rotating shaft.
Preferably, revolving support seat is arranged at two plate ends of the upper face of the slide plate, to cause rotating shaft revolution to be matched with
On slide plate；Using one end of the arrangement hook plate in rotating shaft as the preceding shaft end of rotating shaft, axial end is connected with for limiting rotating shaft after rotating shaft
The fanning strip of revolution amplitude, the fanning strip plate face vertical rotation axis axis, and two scallop mutual angles of fanning strip are 90 °；
The projection for limiting the scallop amplitude of fluctuation of fanning strip two is additionally provided with slide plate upper face.
Preferably, the system also includes being used for the slide track seat for laying slide rail, and slide track seat is fixed in access machine frame；Slide rail
The seat rectangular groove-like of profile, and the receiving to form rectangular cavity shape is enclosed jointly between the cell wall and bottom land of slide plate and slide track seat
Chamber；Affixed electric rotating machine in accommodating chamber, and formed between the gear being coaxially disposed at the output shaft of electric rotating machine at sprocket wheel and rotating shaft
Chain conveyer coordinates；The avoid holes passed through for chain are offered at skateboard body in advance.
Preferably, access in machine frame and arrange hinged seat, the casing wall of push-and-pull piston cylinder is be hinged be matched with the hinged seat and
Both jointed shaft axis horizontals are set.
The beneficial effects of the present invention are：
1), the present invention acts present situation not in place for existing access machine mechanical arm feeding, and push-and-pull is utilized so as to design
Piston cylinder coordinates the engagement formation of electric rotating machine, and then is realized with the moving ahead of hook plate-rotation-backward movement in relative maintenance bin
The quick hook of die station takes and push function.During concrete operations, hook plate is in lodging state under original state, so as to work as push-and-pull
When piston cylinder promotes whole sampling head forward, hook plate can avoid the respective side walls of die sinking platform and enter hook fetch bit and put；Before hook plate
Row in place after, then by electric rotating machine action and drive shaft acts, and then realize hook plate by lodging to upright workflow
Journey.When hook plate is upright, hook plate just hooks the respective inner walls of modulus platform, then the backhaul action with push-and-pull piston cylinder, you can real
Now whole die station and in die station prefabricated components discharging functions.When die station and in die station prefabricated components discharging arrive
Behind position, you can continue reliance on the mechanical arm of access machine to realize that the merger of die station relative orbit operates.Certainly, hook plate is in upright
During state, it can also realize that push die station enters the function of maintenance bin.The present invention can be whole by electrical equipment control, and it is deposited as existing
Take the auxiliary of machine to deposit reclaimer device, automated job can be achieved, it not only saves manpower, while can directly be assemblied in existing life
At producing line machinery, the update cost of equipment is extremely low, wide market.
2), the revolution amplitude of rotating shaft, the actuating range of hook plate is directly defined.And in overall situation where the present invention, it is real
Hook plate is only needed to possess lodging and upright two kinds of location status on border, when showing in rotating shaft, namely rotating shaft can
Realize in the range of 90 ° and rotate by a small margin.Therefore, the present invention is configured with fanning strip and is used as limiting plate, so as to spacing turn
The actuating range of axle.When rotating shaft is driven and rotated by electric rotating machine, fanning strip concomitant rotation, and with the scallop of fanning strip
With corresponding side projection against spacing and terminate the lasting rotation of fanning strip, therewith namely the tentering degree action mesh of rotating shaft is realized
, its construction is rationally compact, and functional reliability is extremely strong.
3), for electric rotating machine, such as the direct-connected rotating shaft of output shaft, the easily riding position because of electric rotating machine are directly passed through
And produce the action interference situation with push-and-pull piston cylinder；The work battle array of electric rotating machine is also easily conveyed to slide plate or even hook simultaneously
At plate.Therefore, present invention employs chain-drive mechanism, and by the way that electric rotating machine is included in the accommodating chamber of slide track seat, so that
While ensuring structural compactness, the reliable smooth motion of each part of the present invention is also ensured that.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the invention when hook plate is in stand up position；
Fig. 2 is Fig. 1 sectional view；
Fig. 3 is the equidimension enlarged drawing of Fig. 2 left view；
Fig. 4 is the dimensional structure diagram of the invention when hook plate is in lodging location；
Fig. 5 is Fig. 4 front view；
Fig. 6 is the equidimension enlarged drawing of Fig. 5 left view.
The actual corresponding relation of each label of the present invention and component names is as follows：
10- push-and-pull piston cylinder 11- piston rods
21- slide track seat 21a- slide rail 22- slide plates
23- rotating shaft 23a- hook plate 23b- fanning strip 23c- gears
24- electric rotating machine 24a- sprocket wheel 25- revolving support seat 26- projections
30- hinged seats
Embodiment
For ease of understanding, here in connection with accompanying drawing 1-6, the concrete structure and working method of the present invention are retouched further below
State：
Shown in the specifically used state reference picture 1-6 of the present invention, its agent structure includes the slide track seat with slide rail 21a
21st, rotating shaft 23, chain drive, slide plate 22, push-and-pull piston cylinder 10 and hinged seat with hook plate 23a and fanning strip 23b
30, wherein：
Push-and-pull piston cylinder 10 can use push-and-pull cylinder or push cylinder, it is contemplated that die station and thereon prefabricated components
Weight, scene using push cylinder to be advisable.The casing wall of push-and-pull piston cylinder 10 is horizontally hinged on hinged seat 30, and hinged seat 30
Or even slide track seat 21 is fixed in the frame of existing access machine.The profile of slide track seat 21 is right angle groove shape, and specific profile can
Shown in reference picture 1 and Fig. 3.The flute length direction of vallecular cavity interior edge slide track seat 21 of slide track seat 21 and slide rail 21a is set, on slide rail 21a again
Guiding is combined with slide plate 22.The parallel die station of direction of action of the slide plate 22 along slide rail 21a treats extraction direction, to be returned in slide plate 22
Realized during contracting and the feeding of die station is operated.
The upper face of slide plate 22 forms the installing zone of rotating shaft 23；Pass through the two groups of revolution branch arranged at 22 liang of plate ends of slide plate
Seat 25 is supportted, so as to realize the freely-supported beam-like of rotating shaft 23 revolution installation purpose.And the lower face of slide plate 22 forms electric rotating machine 24 and pacified
Fill area；Fixing function to electric rotating machine 24 can be realized by fixed seat.The plate body of slide plate 22 is through setting avoid holes, the axle of rotating shaft 23
It is in and is coaxially disposed gear 23c, and sprocket wheel 24a is coaxially disposed at the output shaft of electric rotating machine 24, between sprocket wheel 24a and gear 23c
Above-mentioned chain drive is formed by chain.
On the basis of said structure, the tail end of slide plate 22 is by alignment pin etc. and the piston rod of affixed push-and-pull piston cylinder 10
11 rod ends.And as shown in figures 1 to 6, the preceding axial end of rotating shaft 23 sets the hook plate 23a of the cubic tabular to extend radially outwardly, and
Fanning strip 23b of the rear axial end arrangement of rotating shaft 23 as 90 ° of angles of locating part, so as to realize hook plate 23a in 90 ° of amplitudes
Wobbling action purpose.Fanning strip 23b limits its swing position with projection 26, and projection 26 can use Fig. 1, Fig. 3, Fig. 4 and Fig. 6 institute
The screw with nut that shows is affixed with respect to the screw thread of slide plate 22 to be realized, now the nut top end face namely projection 26 is relative
The mating surface of fanning strip 23b scallops.
For ease of understanding, make here in connection with Fig. 1-6 pairs of workflows of the invention described further below：
During die station warehouse entry：First, electric rotating machine 24 is rotated, and gear 23c at rotating shaft 23 is transmitted the force to by chain.With
The rotation of rotating shaft 23 erects so as to drive hook plate 23a to be rotated by 90 °, and hook plate 23a states are as Figure 1-3.Afterwards, push-and-pull piston cylinder
10 start, and promote slide plate 22 to be moved ahead along slide rail 21a by piston rod 11, and the hook plate 23a now erected on slide plate 22 can be used as and deposit
The extension arm of machine mechanical arm is taken, and substitutes mechanical arm to continue to press on die station and enters in maintenance bin.After again, electric rotating machine 24 reversely revolves
Turn, drive rotating shaft 23 by hook plate 23a reverse rotation 90 ° be retracted to lodging location, now hook plate 23a states as Figure 4-Figure 6, so
Push-and-pull piston cylinder 10 starts afterwards, and slide plate 22 is retracted along slide rail 21a, so as to complete the action of the whole warehouse entry of the present invention.
During die station export：First, push-and-pull piston cylinder 10 starts, and will shift hook fetch bit before slide plate 22 onto and puts, push-and-pull piston cylinder 10
Stop.Afterwards, electric rotating machine 24 starts, and drives hook plate 23a to be rotated by 90 ° and erects, from bottom to top hook die station.After again, push-and-pull
Piston cylinder 10 starts, and pulls sampling head, because hook plate 23a forms hook drawing cooperation together with die station at sampling head, therefore can be by die station
Pull out maintenance bin, you can complete die station and thereon the export action of prefabricated components.
Claims (4)
1. a kind of maintenance bin auxiliary for concrete prefabricated element production line deposits reclaimer system, it is characterised in that：The system bag
The push-and-pull piston cylinder (10) of the parallel die station extraction direction of stroke directions is included, the casing wall of the push-and-pull piston cylinder (10) is hingeably secured to
In access machine frame, and the affixed feeding head of piston rod (11) rod end of push-and-pull piston cylinder (10)；The feeding head includes slide rail
(21a) and the slide plate (22) that guiding cooperation is formed between slide rail (21a) being fixed in access machine frame, and slide plate (22) phase
To the parallel die station extraction direction of direct of travel of slide rail (21a)；Slide plate (22) tail end affixed piston rod (11) rod end, slide plate (22)
Upper rotary is combined with the rotating shaft (23) of diameter parallel die station extraction direction, and rotating shaft (23) is driven by electric rotating machine (24) and turned round
Action；The axial end for being relatively distant from push-and-pull piston cylinder (10) of rotating shaft (23) arranges the hook for hooking modulus platform out of maintenance bin
Plate (23a), the hook plate (23a) extend radially outwardly setting along rotating shaft (23).
2. a kind of maintenance bin auxiliary for concrete prefabricated element production line according to claim 1 deposits reclaimer system,
It is characterized in that：Revolving support seat (25) is arranged at two plate ends of the upper face of the slide plate (22), to cause rotating shaft (23) to return
Turn to be matched with slide plate (22)；Using one end of the arrangement hook plate (23a) in rotating shaft (23) as rotating shaft (23) preceding shaft end, in rotating shaft
(23) axial end is connected with the fanning strip (23b) for limiting rotating shaft (23) revolution amplitude afterwards, and fanning strip (23b) plate face is hung down
Straight rotating shaft (23) axis, and two scallop mutual angles of fanning strip (23b) are 90 °；It is additionally provided with slide plate (22) upper face
For limiting the projection (26) of the scallop amplitude of fluctuation of fanning strip (23b) two.
A kind of 3. maintenance bin auxiliary access material system for concrete prefabricated element production line according to claim 1 or 2
System, it is characterised in that：The system also includes being used for the slide track seat (21) for laying slide rail (21a), and slide track seat (21) is fixed in access
In machine frame；The rectangular groove-like of slide track seat (21) profile, and it is common between the cell wall and bottom land of slide plate (22) and slide track seat (21)
Enclose the accommodating chamber to form rectangular cavity shape；Affixed electric rotating machine (24) in accommodating chamber, and at the output shaft of electric rotating machine (24)
Chain conveyer is formed between the gear (23c) that sprocket wheel (24a) and rotating shaft (23) place are coaxially disposed to coordinate；Opened in advance at slide plate (22) plate body
Provided with the avoid holes passed through for chain.
A kind of 4. maintenance bin auxiliary access material system for concrete prefabricated element production line according to claim 1 or 2
System, it is characterised in that：Arrange hinged seat (30) in access machine frame, the casing wall of push-and-pull piston cylinder (10) is be hinged, and to be matched with this be hinged
Seat (30) place and both jointed shaft axis horizontals settings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711132201.7A CN107756613A (en) | 2017-11-15 | 2017-11-15 | Maintenance bin auxiliary for concrete prefabricated element production line deposits reclaimer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711132201.7A CN107756613A (en) | 2017-11-15 | 2017-11-15 | Maintenance bin auxiliary for concrete prefabricated element production line deposits reclaimer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107756613A true CN107756613A (en) | 2018-03-06 |
Family
ID=61279229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711132201.7A Pending CN107756613A (en) | 2017-11-15 | 2017-11-15 | Maintenance bin auxiliary for concrete prefabricated element production line deposits reclaimer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107756613A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108946031A (en) * | 2018-10-16 | 2018-12-07 | 湖南三快而居住宅工业有限公司 | Die station driving device and piler |
| CN109592274A (en) * | 2018-11-28 | 2019-04-09 | 北京星航机电装备有限公司 | A kind of PC production line die station goes out loading device automatically |
| CN109733865A (en) * | 2019-01-31 | 2019-05-10 | 浙江广天构件股份有限公司 | A kind of catching robot of die station |
| CN110565647A (en) * | 2019-07-09 | 2019-12-13 | 上海持云工程技术有限公司 | compound maintenance bin construction method for PC component assembly line |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203680507U (en) * | 2014-01-25 | 2014-07-02 | 中山市快而居住宅工业有限公司 | Die table storing and taking device |
| CN106042162A (en) * | 2016-07-22 | 2016-10-26 | 国新德 | Prefabricated part maintenance system with movable maintenance bin |
| CN207549070U (en) * | 2017-11-15 | 2018-06-29 | 安徽宝业建工集团有限公司 | Reclaimer system is deposited for the maintenance bin auxiliary of concrete prefabricated element production line |
-
2017
- 2017-11-15 CN CN201711132201.7A patent/CN107756613A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203680507U (en) * | 2014-01-25 | 2014-07-02 | 中山市快而居住宅工业有限公司 | Die table storing and taking device |
| CN106042162A (en) * | 2016-07-22 | 2016-10-26 | 国新德 | Prefabricated part maintenance system with movable maintenance bin |
| CN207549070U (en) * | 2017-11-15 | 2018-06-29 | 安徽宝业建工集团有限公司 | Reclaimer system is deposited for the maintenance bin auxiliary of concrete prefabricated element production line |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108946031A (en) * | 2018-10-16 | 2018-12-07 | 湖南三快而居住宅工业有限公司 | Die station driving device and piler |
| CN108946031B (en) * | 2018-10-16 | 2023-06-23 | 湖南三一快而居住宅工业有限公司 | Mould platform drive arrangement and stacker |
| CN109592274A (en) * | 2018-11-28 | 2019-04-09 | 北京星航机电装备有限公司 | A kind of PC production line die station goes out loading device automatically |
| CN109733865A (en) * | 2019-01-31 | 2019-05-10 | 浙江广天构件股份有限公司 | A kind of catching robot of die station |
| CN110565647A (en) * | 2019-07-09 | 2019-12-13 | 上海持云工程技术有限公司 | compound maintenance bin construction method for PC component assembly line |
| CN110565647B (en) * | 2019-07-09 | 2021-04-09 | 上海持云工程技术有限公司 | Compound maintenance bin construction method for PC component assembly line |
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Application publication date: 20180306 |