CN107234293A - A kind of steel pipe derusting cutting all-in-one machine for building - Google Patents
A kind of steel pipe derusting cutting all-in-one machine for building Download PDFInfo
- Publication number
- CN107234293A CN107234293A CN201710591199.3A CN201710591199A CN107234293A CN 107234293 A CN107234293 A CN 107234293A CN 201710591199 A CN201710591199 A CN 201710591199A CN 107234293 A CN107234293 A CN 107234293A
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- CN
- China
- Prior art keywords
- steel pipe
- gear
- derusting
- shaped seat
- concave wheel
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D21/00—Machines or devices for shearing or cutting tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
The invention discloses a kind of steel pipe derusting cutting all-in-one machine for building, including base and steel pipe, the first U-shaped seat and the second U-shaped seat are provided with base, it is rotatably connected to respectively by rolling bearing units on the first derusting cylinder and the second derusting cylinder, the first derusting cylinder and the second derusting cylinder at the top of first U-shaped seat and the second U-shaped seat and is installed with second gear；First U-shaped seat and the second U-shaped seat are also rotatably connected to rotating shaft, first gear is installed in rotating shaft, first gear is engaged with second gear, the rotating shaft right-hand member being connected with the first U-shaped seat and the rotating shaft left end being connected with the second U-shaped seat are mounted on second bevel gear, the first motor is additionally provided with base, first motor top motor shaft is connected with first bevel gear, and first bevel gear is engaged with second bevel gear.The present invention is rotated by the cylinder that derusts, and sets scaling brush to derust steel pipe in derusting cylinder inwall, derusting scope is wide；Derusting cylinder is provided with two and rotation direction is opposite so that derusting is more thorough.
Description
Technical field
The present invention relates to steel pipe manufacture field, specifically a kind of steel pipe derusting cutting all-in-one machine for building.
Background technology
Steel pipe for building seamless can be divided into seamless steel pipe and seamed steel pipe according to seamed.Seamed steel pipe according to weld seam not
With spiral steel pipe and steel pipes with straight is divided into again, the two drives piles in building, structure, steel construction, load-bearing, using extremely in terms of draining
Generally.Material mainly has carbon steel, and stainless steel, steel alloy, wherein carbon steel material application is the most universal.Construction(al)steel pipe is used to build
Construction, be typically directly exposed in external environment condition, steel tube surface gets rusty easily, so using preceding need derusting.
Common building is complicated with steel tube derusting machine, and use is also cumbersome, and common rust remover derusting effect is not
Ideal, in order to improve derusting effect, generally requires to set very long one section of derusting route so that rust remover volume is larger, relatively more stupid
Weight.
The content of the invention
It is an object of the invention to provide a kind of steel pipe derusting cutting all-in-one machine for building, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the present invention provides following technical scheme：
The first U-shaped seat is provided with a kind of steel pipe derusting cutting all-in-one machine for building, including base and steel pipe, the base
With the second U-shaped seat, the first U-shaped seat and the second U-shaped seat top is rotatably connected to the first derusting cylinder by rolling bearing units respectively
With the second derusting cylinder, second gear is installed with the first derusting cylinder and the second derusting cylinder；First U-shaped seat and
Second U-shaped seat, which is also rotatably connected in rotating shaft, rotating shaft, is provided with first gear, and the first gear is engaged with second gear, with
The rotating shaft right-hand member of first U-shaped seat connection and the rotating shaft left end being connected with the second U-shaped seat are mounted on second bevel gear, the base
On be additionally provided with the first motor, the first motor top motor shaft is connected with first bevel gear, the first bevel gear and the second cone
Gear is engaged；Two the 3rd gears also are connected with by holder pivots respectively on the base, two the 3rd gear tops are solid
Surely it is connected with to be fixedly connected between belt pulley, two belt pulleys at the top of the first feeding concave wheel, two the first feeding concave wheels and leads to
Cross belt connection；Two the 4th gears also are connected with by holder pivots respectively on the base, two the 4th gear tops are equal
It is fixedly connected with the second feeding concave wheel；Described two 4th gears are engaged with two the 3rd gears respectively；Also lead on the base
Cross bearing and be fixedly installed first reducing motors, first reducing motors top motor shaft is connected with partial gear, described endless
All gear is engaged with the 3rd gear；The steel pipe is passed through out of the first derusting cylinder and steel pipe, then from the first feeding concave wheel and second
Pass through between feeding concave wheel, the first feeding concave wheel and the second feeding concave wheel offset with steel pipe；The base left and right ends are set
Support bar is equipped with, supporting bar top is provided with top plate, and the top plate bottom right side is provided with two lifting sliding rails, and two liftings are slided
Lifting frame is slidably connected by sliding block between rail, lifting arch is connected by spring with top plate, the lifting frame bottom is set
Support plate is equipped with, the support plate right side wall is provided with the second motor, and the second motor left end motor shaft is connected with cutter by rotating shaft,
The cutter are located above steel pipe right side；The top plate bottom is also fixedly installed second reducing motors by support, the
Two reducing motor front end motor shaft connection cams, the cam is located at lifting inframe and coordinated with lifting frame.
It is used as further scheme of the invention：The first derusting cylinder and the second derusting cylinder inwall are provided with scaling brush.
It is used as further scheme of the invention：The partial gear number of teeth is 1/2nd of the 3rd number of gear teeth.
It is used as further scheme of the invention：The first feeding concave wheel and the second feeding concave wheel arc groove radius etc.
In steel pipe radius.
It is used as further scheme of the invention：Set in the first feeding concave wheel and the second feeding concave wheel arc groove
There is rubber layer.
It is used as further scheme of the invention：The first reducing motors are identical with second reducing motors rotating speed.
Compared with prior art, the beneficial effects of the invention are as follows：
Mechanism of the present invention is simple, easy to operate, and two kinds of functions of steel pipe derusting and cutting can be realized simultaneously, steel is effectively improved
Pipe processing efficiency；By derusting, cylinder is rotated, and sets scaling brush to derust steel pipe in derusting cylinder inwall, and derusting scope is wide, several
Without dead angle, and derusting cylinder is provided with two and rotation direction is opposite so that derusting is more thorough；By the first feeding concave wheel and
Second feeding concave wheel collective effect drives steel pipe to move right, and the first feeding concave wheel and the second feeding concave wheel are provided with two groups, send
Expect that speed is uniform, the feeding process segment distance that often advances stays for some time so that steel pipe stays for some time in derusting cylinder,
Improve derusting effect；Lifting frame is driven to move up and down by cam rotation so that cutter are moved up and down to be cut to steel pipe,
Steel pipe stops during cutting, it is ensured that cut surface is smooth.
Brief description of the drawings
Fig. 1 is the structural representation of steel pipe derusting cutting all-in-one machine for building.
Fig. 2 is the partial structural diagram at the first U-shaped seat in steel pipe derusting cutting all-in-one machine for building.
Fig. 3 is the vertical view partial structural diagram at the first feeding concave wheel in steel pipe derusting cutting all-in-one machine for building.
Fig. 4 is structural representation when steel pipe derusting cutting all-in-one machine for building carries out steel pipe cutting.
In figure：1- bases, 2- support bars, the U-shaped seats of 3- first, 4- first gears, 5- rotating shafts, 6- rolling bearing units, 7- first
Derust cylinder, 8- second gears, 9- steel pipes, the derusting of 10- second cylinder, the U-shaped seats of 11- second, 12- second bevel gears, the cone teeth of 13- first
Wheel, the motors of 14- first, 15- first reducing motors, 16- partial gears, the gears of 17- the 3rd, the first feedings of 18- concave wheel, 19-
Belt pulley, the gears of 20- the 4th, the second feedings of 21- concave wheel, 22- belts, 23- top plates, 24- lifting sliding rails, 25- liftings frame, 26-
Spring, 27- cams, 28- second reducing motors, 29- support plates, the motors of 30- second, 31- cutter.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer in Fig. 1~4, the embodiment of the present invention, a kind of steel pipe derusting cutting all-in-one machine for building, including the He of base 1
The first U-shaped seat 3 and the second U-shaped seat 11 are provided with steel pipe 9, the base 1, the U-shaped seat 11 of the first U-shaped seat 3 and second is pushed up
Portion is rotatably connected to the derusting cylinder 10 of the first derusting cylinder 7 and second, the first derusting cylinder 7 and second by rolling bearing units 6 respectively
Second gear 8 is installed with derusting cylinder 10；The U-shaped seat 11 of first U-shaped seat 3 and second is also rotatably connected to rotating shaft 5,
First gear 4 is installed, the first gear 4 is engaged with second gear 8 in rotating shaft 5, the rotating shaft 5 being connected with the first U-shaped seat 3 is right
End and the left end of rotating shaft 5 being connected with the second U-shaped seat 11 are mounted on being additionally provided with first on second bevel gear 12, the base 1
Motor 14, the top motor shaft of the first motor 14 is connected with first bevel gear 13, the first bevel gear 13 and second bevel gear 12
Engagement；Two the 3rd gears 17 also are connected with by holder pivots respectively on the base 1, two tops of the 3rd gear 17 are solid
Surely the first feeding concave wheel 18 is connected with, two tops of the first feeding concave wheel 18 have been fixedly connected with belt pulley 19, two belt pulleys
Connected between 19 by belt 22；Also two the 4th gears 20, two are connected with the base 1 by holder pivots respectively
The top of four gear 20 has been fixedly connected with the second feeding concave wheel 21；Described two 4th gears 20 respectively with two the 3rd gears 17
Engagement；First reducing motors 15 are also fixedly installed by bearing on the base 1, the top motor shaft of first reducing motors 15 connects
Partial gear 16 is connected to, the partial gear 16 is engaged with the 3rd gear 17；The steel pipe 9 is from the first derusting cylinder 7 and steel
Pass through, then pass through between the first feeding concave wheel 18 and the second feeding concave wheel 21 in pipe 9, the first feeding concave wheel 18 and second
Feeding concave wheel 21 offsets with steel pipe 9；The left and right ends of base 1 are provided with support bar 2, and the top of support bar 2 is provided with top plate 23,
The bottom right side of top plate 23 is provided between two lifting sliding rails 24, two lifting sliding rails 24 and slidably connects liter by sliding block
Frame 25 is dropped, and the top of lifting frame 25 is connected by spring 26 with top plate 23, and lifting frame 25 bottom is provided with support plate 29, the branch
The right side wall of plate 29 is provided with the second motor 30, and the left end motor shaft of the second motor 30 is connected with cutter 31 by rotating shaft, described to cut
Cutter 31 is located above the right side of steel pipe 9；The bottom of top plate 23 is also fixedly installed second reducing motors 28 by support, the
The front end motor shaft connection cam 27 of two reducing motor 28, the cam 27 is located in lifting frame 25 and coordinated with lifting frame 25；
The first derusting cylinder 7 and second derusting inwall of cylinder 10 is provided with scaling brush, for being derusted to steel pipe；Institute
It is 1/2nd of the number of teeth of the 3rd gear 17 to state the number of teeth of partial gear 16, and partial gear 16 rotates one and enclosed, the 3rd gear 17
Rotate half-turn；First feeding concave wheel 18 and the second feeding concave wheel 21 the arc groove radius is equal to the radius of steel pipe 9 so that first
The feeding concave wheel 21 of feeding concave wheel 18 and second coordinates stable with steel pipe 9；The first feeding concave wheel 18 and the second feeding concave wheel 21
Rubber layer is provided with arc groove, the frictional force of the first feeding concave wheel 18 and the second feeding concave wheel 21 to steel pipe 9 is improved；It is described
First reducing motors 15 are identical with the rotating speed of second reducing motors 28, and both cut to steel pipe in mutual cooperation.
The present invention operation principle be：Start the first motor 14, the first motor 14 drives first bevel gear 13 to rotate, first
Bevel gear 13 drives rotating shaft 5 to rotate, and rotating shaft 5 drives first gear 4 to rotate, and first gear 4 drives second gear 8 to rotate so that
The first derusting derusting cylinder 10 of cylinder 7 and second is rotated, and the first derusting derusting of cylinder 7 and second rotation direction of cylinder 10 is opposite；Pass through feeding
Device derusts steel pipe feeding first in the derusting cylinder 10 of cylinder 7 and second, the right-hand member of steel pipe 9 is derusted, when steel pipe 9 enters first
When between the feeding concave wheel 21 of feeding concave wheel 18 and second, feeding device unclamps, and starts first reducing motors 15, first reducing motors
15 drive partial gears 16 are rotated, and viewed from above, partial gear 16 is rotated counterclockwise, and partial gear 16 drives the 3rd
Gear 17 is rotated clockwise, and the first feeding concave wheel 18 is rotated clockwise, and the 3rd gear 17 drives the 4th gear 20 to rotate counterclockwise,
Second feeding concave wheel 21 is rotated counterclockwise, and the first feeding concave wheel 18 and the second feeding concave wheel 21 coordinate drive steel pipe 9 to move right,
After partial gear 16 rotates counterclockwise half-turn, partial gear 16 is disengaged from the 3rd gear 17, and the 3rd gear 17 stops
Rotation stop is moved, and steel pipe 9 stops movement, and partial gear 16 is rotated counterclockwise after half-turn again, the gear 17 of partial gear 16 and the 3rd
Again engage, the 3rd gear 17 is rotated clockwise again, steel pipe 9 continues to move right, the intermittence of steel pipe 9 moves right, except
Stayed for some time in rust cylinder so that derusting effect is more preferable；If needing to be cut after derusting, starting the first deceleration electricity
Start the motor 30 of second reducing motors 28 and second while machine 15, the second motor 30 drives cutter 31 to rotate, second slows down
Motor 28 is rotated counterclockwise with moving cam 27, and cam 27 rotates counterclockwise half-turn, and lifting remains stationary of frame 25, endless during this
All gear 16 is engaged with the 3rd gear 17, and steel pipe 9 moves right, and cam 27 continues to rotate counterclockwise, and drives lifting frame 25 downward
Mobile, partial gear 16 is disengaged from the 3rd gear 17 during this, and the stop motion of steel pipe 9, cutter 31 enter to steel pipe 9
Row cutting, when lifting frame 25 drops to minimum point, cam 27 is rotated further, under the effect of spring 26, and lifting frame 25 is ramped up,
When cam 27 rotates a full circle, the return-to-home position of frame 25 is lifted, now partial gear 16 is nibbled with the 3rd gear 17 again
Close, steel pipe 9 continues to move right, reciprocal with this, the length of steel pipe cut every time is equal, and the first motor is closed after the completion of cutting
14th, first reducing motors 15, second reducing motors 28 and cutter 31.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (6)
1. a kind of steel pipe derusting cutting all-in-one machine for building, including base (1) and steel pipe (9), it is characterised in that the base
(1) the first U-shaped seat (3) and the second U-shaped seat (11), first U-shaped seat (3) and the second U-shaped seat (11) top are provided with
Not by rolling bearing units (6) be rotatably connected to the first derusting cylinder (7) and second derusting cylinder (10), it is described first derust cylinder (7) and
Second gear (8) is installed with second derusting cylinder (10)；First U-shaped seat (3) and the second U-shaped seat (11) are also rotated
It is connected with rotating shaft (5), rotating shaft (5) and first gear (4) is installed, the first gear (4) is engaged with second gear (8), with
Rotating shaft (5) right-hand member of first U-shaped seat (3) connection and rotating shaft (5) left end being connected with the second U-shaped seat (11) are mounted on the second cone
The first motor (14) is additionally provided with gear (12), the base (1), the first motor (14) top motor shaft is connected with the first cone
Gear (13), the first bevel gear (13) is engaged with second bevel gear (12)；Also turned respectively by support on the base (1)
Dynamic be connected with the top of two the 3rd gears (17), two the 3rd gears (17) has been fixedly connected with the first feeding concave wheel (18), two
It has been fixedly connected with the top of individual first feeding concave wheel (18) between belt pulley (19), two belt pulleys (19) by belt (22) even
Connect；Also it is connected with respectively by holder pivots at the top of two the 4th gears (20), two the 4th gears (20) on the base (1)
It has been fixedly connected with the second feeding concave wheel (21)；Described two 4th gears (20) are engaged with two the 3rd gears (17) respectively；
First reducing motors (15), first reducing motors (15) top motor shaft are also fixedly installed by bearing on the base (1)
Partial gear (16) is connected with, the partial gear (16) is engaged with the 3rd gear (17)；The steel pipe (9) is removed from first
Rust cylinder (7) and steel pipe (9) is interior passes through, then pass through between the first feeding concave wheel (18) and the second feeding concave wheel (21), described the
One feeding concave wheel (18) and the second feeding concave wheel (21) offset with steel pipe (9)；Base (1) left and right ends are provided with support bar
(2), support bar (2) top is provided with top plate (23), and top plate (23) bottom right side is provided with two lifting sliding rails (24), two
Slidably connected between root lifting sliding rail (24) by sliding block and pass through spring (26) and top at the top of lifting frame (25), lifting frame (25)
Plate (23) is connected, and described lifting frame (25) bottom is provided with support plate (29), and support plate (29) right side wall is provided with the second motor
(30), the second motor (30) left end motor shaft is connected with cutter (31) by rotating shaft, and the cutter (31) are located at steel pipe (9)
Above right side；Top plate (23) bottom is also fixedly installed second reducing motors (28), second reducing motors by support
(28) front end motor shaft connection cam (27), the cam (27) is located in lifting frame (25) and coordinated with lifting frame (25).
2. steel pipe derusting cutting all-in-one machine for building according to claim 1, it is characterised in that the first derusting cylinder
(7) and second derusting cylinder (10) inwall be provided with scaling brush.
3. steel pipe derusting cutting all-in-one machine for building according to claim 1, it is characterised in that the partial gear
(16) number of teeth is 1/2nd of the 3rd gear (17) number of teeth.
4. steel pipe derusting cutting all-in-one machine for building according to claim 1, it is characterised in that the first feeding concave wheel
(18) and second feeding concave wheel (21) arc groove radius be equal to steel pipe (9) radius.
5. steel pipe derusting cutting all-in-one machine for building according to claim 4, it is characterised in that the first feeding concave wheel
(18) and in second feeding concave wheel (21) arc groove it is provided with rubber layer.
6. steel pipe derusting cutting all-in-one machine for building according to claim 1, it is characterised in that the first reducing motors
(15) it is identical with second reducing motors (28) rotating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710591199.3A CN107234293A (en) | 2017-07-19 | 2017-07-19 | A kind of steel pipe derusting cutting all-in-one machine for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710591199.3A CN107234293A (en) | 2017-07-19 | 2017-07-19 | A kind of steel pipe derusting cutting all-in-one machine for building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107234293A true CN107234293A (en) | 2017-10-10 |
Family
ID=59990666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710591199.3A Withdrawn CN107234293A (en) | 2017-07-19 | 2017-07-19 | A kind of steel pipe derusting cutting all-in-one machine for building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107234293A (en) |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107570784A (en) * | 2017-10-24 | 2018-01-12 | 宁波市江北区伊人宝贸易有限公司 | A kind of adjustable equal length steel tube automatic cutting device |
| CN107695437A (en) * | 2017-11-09 | 2018-02-16 | 王宏亮 | A kind of welded still pipe soldering opening of fixing-stable cuts flat with device |
| CN108115529A (en) * | 2017-12-21 | 2018-06-05 | 郑州诚合信息技术有限公司 | Derusting device on the inside of a kind of steel pipe for building |
| CN108149904A (en) * | 2017-12-20 | 2018-06-12 | 戚展鹏 | A kind of finishing putty metope grinding apparatus |
| CN108237462A (en) * | 2018-01-17 | 2018-07-03 | 徐志华 | A kind of construction steel tube derusting machine |
| CN108274240A (en) * | 2018-01-10 | 2018-07-13 | 李荣凤 | A kind of built steel pipe surface cleaning equipment for building |
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| CN108705151A (en) * | 2018-02-08 | 2018-10-26 | 海南科技职业学院 | Manipulator with cutting function |
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| CN109332792A (en) * | 2017-10-24 | 2019-02-15 | 宁波市江北区伊人宝贸易有限公司 | A kind of adjustable equal length steel tube automatic cutting device |
| CN107570784B (en) * | 2017-10-24 | 2019-02-05 | 阪神机器（徐州）有限公司 | A kind of adjustable equal length steel tube automatic cutting device |
| CN107570784A (en) * | 2017-10-24 | 2018-01-12 | 宁波市江北区伊人宝贸易有限公司 | A kind of adjustable equal length steel tube automatic cutting device |
| CN107695437A (en) * | 2017-11-09 | 2018-02-16 | 王宏亮 | A kind of welded still pipe soldering opening of fixing-stable cuts flat with device |
| CN108149904A (en) * | 2017-12-20 | 2018-06-12 | 戚展鹏 | A kind of finishing putty metope grinding apparatus |
| CN108115529A (en) * | 2017-12-21 | 2018-06-05 | 郑州诚合信息技术有限公司 | Derusting device on the inside of a kind of steel pipe for building |
| CN108274240A (en) * | 2018-01-10 | 2018-07-13 | 李荣凤 | A kind of built steel pipe surface cleaning equipment for building |
| CN108237462A (en) * | 2018-01-17 | 2018-07-03 | 徐志华 | A kind of construction steel tube derusting machine |
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Application publication date: 20171010 |