CN105059602A - Automatic and horizontal steel pipe arrangement device and steel pipe arrangement method thereof - Google Patents
Automatic and horizontal steel pipe arrangement device and steel pipe arrangement method thereof Download PDFInfo
- Publication number
- CN105059602A CN105059602A CN201510453125.4A CN201510453125A CN105059602A CN 105059602 A CN105059602 A CN 105059602A CN 201510453125 A CN201510453125 A CN 201510453125A CN 105059602 A CN105059602 A CN 105059602A
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- steel pipe
- discharge bin
- fixed
- backgauge
- sloping skid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
- B65B35/30—Arranging and feeding articles in groups
- B65B35/50—Stacking one article, or group of articles, upon another before packaging
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention provides an automatic and horizontal steel pipe arrangement device and a steel pipe arrangement method thereof. The automatic and horizontal steel pipe arrangement device comprises a feeding roller bed, a locating baffle, inclined racks, overturning hooks, an arranging bin, a stopping frame, limiters and side guide plates. The locating baffle is located on the left side of the feeding roller bed. The overturning hooks are located at the upper end of the inclined racks. The stopping frame is arranged at the lower end of the inclined racks. The arranging bin is located below the inclined racks. The two side guide plates are fixed to the ground on the left and right sides of the arranging bin respectively. The two limiters are fixed to the ground at the upper and lower ends of the portion between the two side guide plates respectively. According to the steel pipe arrangement method, once a steel pipe is arranged, the arranging bin horizontally moves by the distance of the diameter of the steel pipe, and then the arrangement of each layer of steel pipes is achieved in sequence; at the initial position, an oil cylinder is located at a top dead center, and after the first layer is completed, the oil cylinder moves downwards by the distance of the diameter of the pipe for arrangement of the second layer and so on; and in this way, all the arrangement process is completed in sequence. By the adoption of the automatic horizontal steel pipe arrangement device and the steel pipe arrangement method thereof, full-automatic and horizontal steel pipe arrangement and stacking are achieved, production efficiency of a pipe bank can be greatly improved, and production cost can be greatly lowered.
Description
Technical field
The present invention relates to pipe racking device, especially a kind of steel pipe automatic horizontal pipe racking device and comb method thereof.
Background technology
In order to allow steel pipe be convenient to lifting and transport, all steel pipe can be packed at the last of Tube processing line line, before this procedure of packing, generally first steel pipe will be carried out comb piling by packing requirements.Current comb operation mostly artificial or S. A. completes, and this directly causes comb operation, and not only production efficiency is low, and the labour intensity of comb operating personnel is large especially.
Summary of the invention
Main purpose of the present invention is to overcome the not only time-consuming but also shortcoming of requiring great effort existed in the operation of above-mentioned prior art comb, provides a kind of steel pipe automatic horizontal pipe racking device and comb method thereof.
Technical scheme of the present invention is: a kind of steel pipe automatic horizontal pipe racking device, comprise feeding roller-way, the positioning baffle for steel pipe location, the sloping skid that steel pipe is rolled downwards from its surface, for steel pipe being translated into stirring hook sloping skid, by the feed motion of horizontal and vertical steel pipe lined up the discharge bin of a buttress, be used for steel pipe to be put into by root backgauge frame in discharge bin, be used for the spacing limiting device of discharge bin horizontal direction and make discharge bin by the side guide plate of spigot surface linearly movement, wherein, positioning baffle is positioned at the left side of feeding roller-way; Stirring hook is installed on the upper-end part of driving of sloping skid; Described backgauge is set up in the lower end position of sloping skid, discharge bin is positioned at sloping skid lower position, and the quantity of side guide plate is 2, is individually fixed on the ground, the left and right sides of discharge bin, the quantity of limiting device is 2, is individually fixed on the ground at the two ends up and down between two side guide plates.
Above-mentioned sloping skid is low dip plane, the height lower end, upper end of the band bracing frame that at least three of laterally evenly arrangement are identical.
The quantity of above-mentioned stirring hook is at least 3, and the dip plane upper-end part of driving of each sloping skid is separately installed with a stirring hook.
The quantity of above-mentioned backgauge frame is 2, its structure is a shaft-like transmission shaft, and one end of transmission shaft is fixed on bearing by bearing seat, this propeller shaft couplings has and drives the cylinder of its reciprocating rotation or oil cylinder, and the other end of transmission shaft is fixed with for blocking or the striker plate of steel pipe of letting pass; The left and right sides of the lower end, head and the tail two dip plane of sloping skid is laterally located at respectively by these two backgauge framves, and one end that two backgauge framves are fixed with striker plate is relative, the drive shaft axis of two backgauge framves is located along the same line simultaneously, and the backgauge direction of two striker plates is consistent.
Above-mentioned stirring hook left end is a hook formation holding steel pipe upwards, below in the middle part of it and cylinder piston rod termination are hinged, cylinder lower end and the bearing fixed on the ground are hinged, and one end that stirring hook right-hand member is overhead high with sloping skid dip plane is connected by rotating shaft.
Above-mentioned discharge bin comprises base, column, sliding rail rack, hydraulic ram, material fork, reducing motor, gear, tooth bar and flat bed delivery chain; Described base is the rectangular planar frame structure be welded, and column is two groups, is installed vertically on the two ends on base top respectively; Sliding rail rack is installed vertically on the right-hand member of base; Hydraulic ram is installed vertically on base, and is positioned at the midway location of sliding rail rack; Material fork is connected with the piston rod end of hydraulic ram by connecting otic placode; Reducing motor is installed on the side of base left end; Gear is fixed in the rotating shaft of reducing motor, and the tooth bar be meshed with gear is fixed on ground from left to right; Base two sides are respectively equipped with the flat bed delivery chain of the support discharge bin horizontal motion paralleled with tooth bar.
Above-mentioned material fork is fixed with the dividing plate of divider base row steel pipe, dividing plate is fixed on material fork by screw.
A comb method for steel pipe automatic horizontal pipe racking device, comprises the steps:
The first step, steel pipe is transported to above stirring hook by feeding roller-way, and positioning baffle carries out axial location to pipe end;
Second step, stirring hook rotates to be delivered on sloping skid by steel pipe, and steel pipe Free-rolling is to backgauge frame place;
3rd step, discharge bin starts comb operation, and its sequence of operation is followed successively by:
A) make discharge bin be positioned at initial position: namely discharge bin is at right stop, material fork is at bottom dead point;
B) discharge bin is moved to the left to left stop, and material fork is moved upwards up to top dead point;
C) backgauge frame rotates and once discharges a steel pipe on the material fork in discharge bin;
D) discharge bin moves right the distance of a caliber;
E) second steel pipe is discharged;
F) the like continue release steel pipe, until discharge last root steel pipe of being booked bottom discharge bin;
G) distance of a material fork decline caliber;
H) discharge bin is moved to the left to left stop;
I) second layer comb is started by the method with ground floor comb;
J) the like until the number of plies of drained regulation, thus complete a comb operation;
4th step, material fork moves to bottom dead point, and discharge bin moves to right stop, waits for and removes material.
Beneficial effect of the present invention:
1. the present invention is moved by the horizontal feed of discharge bin and expects in discharge bin that the vertical feed campaign of pitching can realize the full-automatic comb of different size steel pipe, and action is simple, and efficiency is high.
2. the parallel motion of discharge bin of the present invention is the rack pinion driven by reductor, and the perpendicular movement of discharge bin relies on the hydraulic oil cylinder driving with displacement pickup, and kinematic accuracy is high, and stable movement is reliable.
3. reasonable in design of the present invention, can meet the comb requirement of all size steel pipe, achieves the full automaticity horizontal circular pipes piling of steel pipe, can greatly improve the production efficiency of comb and reduce productive costs, have very high novelty.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is birds-eye view of the present invention;
Fig. 2 is left view of the present invention;
Fig. 3 is discharge bin left view of the present invention.
Description of reference numerals:
1, backgauge frame; 2, positioning baffle; 3, sloping skid; 4, stirring hook; 4.1, bearing seat; 4.2, bearing; 5, side guide plate; 6, discharge bin; 6.1, reducing motor; 6.2, column; 6.3, sliding rail rack; 6.4, hydraulic ram; 6.5, base; 6.6, flat bed delivery chain; 6.7, dividing plate; 6.8, material fork; 6.9, gear; 6.10, tooth bar; 7, feeding roller-way; 7.1, material feeding switch; 8, limiting device; 8.1, energy disperser.
Detailed description of the invention
Embodiment 1:
As shown in Figure 1, the invention provides a kind of steel pipe automatic horizontal pipe racking device, comprise feeding roller-way 7, for the positioning baffle 2 of steel pipe location, make the sloping skid 3 that steel pipe rolls from its surface downwards, for steel pipe being translated into the stirring hook 4 on sloping skid 3, by the feed motion of horizontal and vertical, steel pipe is lined up the discharge bin 6 of a buttress, for steel pipe to be put into the backgauge frame 1 in discharge bin 6 by root, for to the spacing limiting device 8 of discharge bin 6 horizontal direction and side guide plate 5, wherein, positioning baffle 2 is positioned at the left side of feeding roller-way 7, be in roller-way end, for positioning pipe end, feeding roller-way 7 forms by several independent roller-way is laterally aligned, and its spacing about 2 meters ~ about 2.5 meters, has the material feeding switch 7.1 for examination steel tube between roller-way.Stirring hook 4 is installed on the upper-end part of driving of sloping skid 3, steel pipe can be translated on sloping skid 3; The lower end position of sloping skid 3 is located at by described backgauge frame 1, for steel pipe is put in discharge bin 6 by root, when backgauge frame 1 rotates can before releasing in a pipe to discharge bin 6 while stop rear pipe follow-up, can steel pipe be put in discharge bin 6 by root by its reciprocating rotation like this; Discharge bin 6 is positioned at sloping skid 3 lower position, by the feed motion of its horizontal and vertical, steel pipe can be lined up a buttress on request; Wherein sloping skid 3 is low dip plane, the height lower end, upper end of the band bracing frame that at least three of laterally evenly arrangement are identical, for steel pipe being rolled to discharge bin 6, the quantity of stirring hook 4 is at least 3, and the dip plane upper-end part of driving of each sloping skid 3 is separately installed with a stirring hook 4; The quantity of backgauge frame 1 is also 2, backgauge frame 1 structure is a shaft-like transmission shaft, and one end of transmission shaft is fixed on bearing by bearing seat, this propeller shaft couplings has and drives the cylinder of its reciprocating rotation or oil cylinder, and the other end of transmission shaft is fixed with for blocking or the striker plate of steel pipe of letting pass; The left and right sides of the lower end, head and the tail two dip plane of sloping skid 3 is laterally located at respectively by these two backgauge framves 1, and the one end being fixed with striker plate is relative, and the drive shaft axis of two backgauge framves 1 is located along the same line simultaneously, and the backgauge direction of two striker plates is consistent.The quantity of side guide plate 5 is 2, is individually fixed on the ground, the left and right sides of discharge bin 6, and discharge bin 6 can be made to move linearly along the spigot surface of side guide plate 5.The quantity of limiting device 8 is 2, and be individually fixed on the ground at the two ends up and down between two side guide plates 5, the parallel motion for discharge bin 6 is spacing, limiting device 8 is equipped with energy disperser 8.1, for preventing discharge bin 6 parallel motion apart from excessive.The steel pipe automatic horizontal pipe racking device that the present embodiment provides is connected and composed by above-mentioned each parts.
The comb method of the present embodiment comprises the steps:
The first step, steel pipe is transported to above stirring hook 4 by feeding roller-way 7, and positioning baffle 2 pairs of pipe ends carry out axial location;
Second step, stirring hook 4 rotates to be delivered on sloping skid 3 by steel pipe, and steel pipe Free-rolling is to backgauge frame 1 place;
3rd step, discharge bin 6 starts to carry out every layer one by one and successively comb operation according to setting;
4th step, after being booked pipe on request, discharge bin 6 returns to initial position, waits for and removes material.
Embodiment 2:
On the basis of embodiment 1, with reference to Fig. 2, described sloping skid 3 is cantilever design, and its bracing frame is positioned at the left end of dip plane, and dip plane has certain gradient, can meet the needs that pipe automatic rolling falls; The concrete structure of described stirring hook 4 is: its left end is a hook formation holding steel pipe upwards, below in the middle part of it and cylinder piston rod termination are hinged, cylinder lower end and the bearing fixed on the ground are hinged, and one end that stirring hook 4 right-hand member is overhead high with sloping skid 3 dip plane is connected by rotating shaft.Concrete stirring hook 4 by bearing seat 4.1 be installed on the overhead high one end of sloping skid left end on the bearing 4.2 fixed, steel pipe after positioning on feeding roller-way 7 can be dug, deliver on sloping skid 3.
As shown in Figure 3, described discharge bin 6 comprises base 6.5, column 6.2, sliding rail rack 6.3, hydraulic ram 6.4, material fork 6.8, reducing motor 6.1, gear 6.9, tooth bar 6.10 and flat bed delivery chain 6.6 etc.; The rectangular planar frame structure of described base 6.5 for being welded, column 6.2 is two groups, is installed vertically on the two ends on base 6.5 top respectively; Sliding rail rack 6.3 is installed vertically on the right-hand member of base 6.5; Hydraulic ram 6.4 is installed vertically on base 6.5, and is positioned at the midway location of sliding rail rack 6.3, and this hydraulic ram 6.4 is with displacement pickup, and its kinematic accuracy is high, and stable movement is reliable; Material fork 6.8 is connected with the piston rod end of hydraulic ram 6.4 by connecting otic placode, and piston rod crank motion drives material fork about 6.8 perpendicular movement, bears tubing weight; Material fork 6.8 is fixed with the dividing plate of divider base row steel pipe, dividing plate is fixed on material fork by screw, and screw is U-shaped hole; Reducing motor 6.1 is installed on the side of base 6.5 left end; Gear 6.9 is fixed in the rotating shaft of reducing motor 6.1, and the tooth bar 6.10 be meshed with gear 6.9 is fixed on ground from left to right, and reducing motor 6.1 driven wheel 6.9 and tooth bar 6.10 engage and rotate, thus drives whole discharge bin 6 parallel motion; Base 6.5 two sides are respectively equipped with the flat bed delivery chain of support discharge bin 6 horizontal motion paralleled with tooth bar.After often sequencing a pipe, the distance of a discharge bin 6 parallel motion caliber, realizes the alignment processes of every one deck successively.During initial position, oil cylinder is at top dead point, and after ground floor completes, the distance of a decline caliber, carries out the arrangement of the second layer, realizes whole alignment processes so successively.
The comb method of a kind of steel pipe automatic horizontal pipe racking device provided by the invention, comprises the steps:
The first step, steel pipe is transported to above stirring hook 4 by feeding roller-way 7, and positioning baffle 2 pairs of pipe ends carry out axial location;
Second step, stirring hook 4 rotates to be delivered on sloping skid 3 by steel pipe, and steel pipe Free-rolling is to backgauge frame 1 place;
3rd step, discharge bin 6 starts comb operation, and its sequence of operation is followed successively by:
A) make discharge bin 6 be positioned at initial position: namely discharge bin 6 is at right stop, material fork 6.8 is at bottom dead point;
B) discharge bin 6 is moved to the left to left stop, and material fork 6.8 is moved upwards up to top dead point;
C) backgauge frame 1 rotates and once discharges a steel pipe on the material fork 6.8 in discharge bin 6;
D) discharge bin 6 moves right the distance of a caliber;
E) second steel pipe is discharged;
F) the like continue release steel pipe, until discharge last root steel pipe of being booked bottom discharge bin 6;
G) expect that fork 6.8 declines the distance of a caliber;
H) discharge bin 6 is moved to the left to left stop;
I) second layer comb is started by the method with ground floor comb;
J) the like until the number of plies of drained regulation, thus complete a comb operation;
4th step, material fork 6.8 moves to bottom dead point, and discharge bin 6 moves to right stop, waits for and removes material.
The present invention devises backgauge shelf structure innovatively and has the discharge bin structure of lifting, translation functions, unit design is reasonable, course of action is accurately reliable, the comb requirement of all size steel pipe can be met, achieve the full automaticity horizontal circular pipes piling of steel pipe, can greatly improve the production efficiency of comb and reduce productive costs, there is very high novelty.First, the present invention is moved by the horizontal feed of discharge bin and expects in discharge bin that the vertical feed campaign of pitching can realize the full-automatic comb of different size steel pipe, and action is simple, and efficiency is high.Secondly, the parallel motion of discharge bin of the present invention is the rack pinion driven by reductor, and the perpendicular movement of discharge bin relies on the hydraulic oil cylinder driving with displacement pickup, and kinematic accuracy is high, and stable movement is reliable.
The part do not described in detail in present embodiment belongs to the known conventional means of the industry, does not describe one by one here.More than exemplifying is only to casehistory of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (8)
1. a steel pipe automatic horizontal pipe racking device, it is characterized in that, comprise feeding roller-way (7), for the positioning baffle (2) of steel pipe location, make the sloping skid (3) that steel pipe rolls from its surface downwards, for steel pipe being translated into the stirring hook (4) on sloping skid (3), by the feed motion of horizontal and vertical, steel pipe is lined up the discharge bin (6) of a buttress, for steel pipe to be put into the backgauge frame (1) in discharge bin (6) by root, for to the spacing limiting device (8) of discharge bin (6) horizontal direction and make discharge bin (6) by the side guide plate (5) of spigot surface linearly movement, wherein, positioning baffle (2) is positioned at the left side of feeding roller-way (7), stirring hook (4) is installed on the upper-end part of driving of sloping skid (3), described backgauge frame (1) is located at the lower end position of sloping skid (3), discharge bin (6) is positioned at sloping skid (3) lower position, the quantity of side guide plate (5) is 2, be individually fixed on the ground, the left and right sides of discharge bin (6), the quantity of limiting device (8) is 2, is individually fixed on the ground at the two ends up and down between two side guide plates (5).
2. a kind of steel pipe automatic horizontal pipe racking device as claimed in claim 1, is characterized in that: described sloping skid (3) is low dip plane, the height lower end, upper end of the band bracing frame that at least three of laterally evenly arrangement are identical.
3. a kind of steel pipe automatic horizontal pipe racking device as claimed in claim 2, it is characterized in that: the quantity of described stirring hook (4) is at least 3, and the dip plane upper-end part of driving of each sloping skid (3) is separately installed with a stirring hook (4).
4. a kind of steel pipe automatic horizontal pipe racking device as claimed in claim 2, it is characterized in that: the quantity of described backgauge frame (1) is 2, its structure is a shaft-like transmission shaft, and one end of transmission shaft is fixed on bearing by bearing seat, this propeller shaft couplings has and drives the cylinder of its reciprocating rotation or oil cylinder, and the other end of transmission shaft is fixed with for blocking or the striker plate of steel pipe of letting pass; These two backgauge framves (1) are laterally located at the left and right sides of the lower end, head and the tail two dip plane of sloping skid (3) respectively, and one end that two backgauge framves (1) are fixed with striker plate is relative, the drive shaft axis of two backgauge framves (1) is located along the same line simultaneously, and the backgauge direction of two striker plates is consistent.
5. a kind of steel pipe automatic horizontal pipe racking device as claimed in claim 3, it is characterized in that: described stirring hook (4) left end is a hook formation holding steel pipe upwards, below in the middle part of it and cylinder piston rod termination are hinged, cylinder lower end and the bearing fixed on the ground are hinged, and one end that stirring hook (4) right-hand member is overhead high with sloping skid (3) dip plane is connected by rotating shaft.
6. a kind of steel pipe automatic horizontal pipe racking device as claimed in claim 1, it is characterized in that: described discharge bin (6) comprises base (6.5), column (6.2), sliding rail rack (6.3), hydraulic ram (6.4), material fork (6.8), reducing motor (6.1), gear (6.9), tooth bar (6.10) and flat bed delivery chain (6.6); The rectangular planar frame structure of described base (6.5) for being welded, column (6.2) is two groups, is installed vertically on the two ends on base (6.5) top respectively; Sliding rail rack (6.3) is installed vertically on the right-hand member of base (6.5); Hydraulic ram (6.4) is installed vertically on base (6.5), and is positioned at the midway location of sliding rail rack (6.3); Material fork (6.8) is connected with the piston rod end of hydraulic ram (6.4) by connecting otic placode; Reducing motor (6.1) is installed on the side of base (6.5) left end; Gear (6.9) is fixed in the rotating shaft of reducing motor (6.1), and the tooth bar (6.10) be meshed with gear (6.9) is fixed on ground from left to right; Base (6.5) two sides are respectively equipped with the flat bed delivery chain of support discharge bin (6) horizontal motion paralleled with tooth bar.
7. a kind of steel pipe automatic horizontal pipe racking device as claimed in claim 6, is characterized in that: the dividing plate described material fork (6.8) being fixed with divider base row steel pipe, and dividing plate is fixed on material fork by screw.
8. a comb method for steel pipe automatic horizontal pipe racking device, is characterized in that, comprise the steps:
The first step, steel pipe is transported to stirring hook (4) top by feeding roller-way (7), and positioning baffle (2) carries out axial location to pipe end;
Second step, stirring hook (4) rotates to be delivered on sloping skid (3) by steel pipe, and steel pipe Free-rolling is to backgauge frame (1) place;
3rd step, discharge bin (6) starts comb operation, and its sequence of operation is followed successively by:
Make discharge bin (6) be positioned at initial position: namely discharge bin (6) is at right stop, material fork (6.8) is at bottom dead point;
Discharge bin (6) is moved to the left to left stop, and material fork (6.8) is moved upwards up to top dead point;
Backgauge frame (1) rotates and once discharges a steel pipe on material fork (6.8) in discharge bin (6);
Discharge bin (6) moves right the distance of a caliber;
Discharge second steel pipe;
The like continue release steel pipe, until release be booked discharge bin (6) bottom last root steel pipe;
The distance of material fork (6.8) decline caliber;
Discharge bin (6) is moved to the left to left stop;
Second layer comb is started by the method with ground floor comb;
The like until the number of plies of drained regulation, thus complete a comb operation;
4th step, material fork (6.8) moves to bottom dead point, and discharge bin (6) moves to right stop, waits for and removes material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453125.4A CN105059602B (en) | 2015-07-29 | 2015-07-29 | A kind of steel pipe automatic horizontal pipe racking device and its comb method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453125.4A CN105059602B (en) | 2015-07-29 | 2015-07-29 | A kind of steel pipe automatic horizontal pipe racking device and its comb method |
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| Publication Number | Publication Date |
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| CN105059602A true CN105059602A (en) | 2015-11-18 |
| CN105059602B CN105059602B (en) | 2017-10-17 |
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| CN107876719A (en) * | 2017-10-17 | 2018-04-06 | 山西太钢不锈钢股份有限公司 | A kind of conticaster circle strand inserting method |
| CN111003268A (en) * | 2020-03-05 | 2020-04-14 | 胜利油田新大管业科技发展有限责任公司 | Stacking calandria unit |
| CN111532712A (en) * | 2019-09-03 | 2020-08-14 | 迁安正大通用钢管有限公司 | Automatic square tube stacking system |
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| CN112705001A (en) * | 2020-12-31 | 2021-04-27 | 高国杰 | Peanut picker raise dust processing apparatus |
| CN114030849A (en) * | 2021-11-19 | 2022-02-11 | 中国联合工程有限公司 | Workpiece feeding device of steel pipe inner and outer wall coating production line |
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| CN111003268B (en) * | 2020-03-05 | 2020-06-16 | 胜利油田新大管业科技发展有限责任公司 | Stacking calandria unit |
| CN112027590A (en) * | 2020-08-10 | 2020-12-04 | 上海理工大学 | Batch discharging device for slender pipe fittings |
| CN112027590B (en) * | 2020-08-10 | 2021-11-19 | 上海理工大学 | Batch discharging device for slender pipe fittings |
| CN112705001A (en) * | 2020-12-31 | 2021-04-27 | 高国杰 | Peanut picker raise dust processing apparatus |
| CN114030849A (en) * | 2021-11-19 | 2022-02-11 | 中国联合工程有限公司 | Workpiece feeding device of steel pipe inner and outer wall coating production line |
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| CN105059602B (en) | 2017-10-17 |
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