CN106238501A - A kind of steel strip tube coiling Automatic Production System - Google Patents
A kind of steel strip tube coiling Automatic Production System Download PDFInfo
- Publication number
- CN106238501A CN106238501A CN201610738660.9A CN201610738660A CN106238501A CN 106238501 A CN106238501 A CN 106238501A CN 201610738660 A CN201610738660 A CN 201610738660A CN 106238501 A CN106238501 A CN 106238501A
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- China
- Prior art keywords
- pair
- welder
- pipe
- socket
- cutting
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/083—Supply, or operations combined with supply, of strip material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention discloses a kind of steel strip tube coiling Automatic Production System, including: unwinding device, apparatus for leveling, pipe-reeling device, welder, cutting device, traction apparatus and driving means, wherein: arrange unwinding device, for steel coil strip is unreeled；Apparatus for leveling is set, for flattening the steel band after unreeling；Pipe-reeling device is set, for rolling the steel band after leveling so that it is form socket；Welder is set, for welding the abutment joint of socket；Cutting device is set, for blocking the socket after welding；Traction apparatus is set, for the socket through pipe-reeling device roll-forming is drawn, it is made to sequentially pass through welder and cutting device, and when socket is through welder, socket is welded by welder, when socket arrives predetermined length through cutting device, and socket is blocked by cutting device.Present invention achieves the consecutive production that steel band is processed into pipe fitting, substantially increase production efficiency.
Description
Technical field
The present invention relates to metal tube processing technique field, particularly relate to a kind of steel strip tube coiling Automatic Production System.
Background technology
Pipe fitting is frequently encountered by producing, living, and pipe fitting includes plastic tube and metal tube.It is desirable to provide one will
Steel band is processed into the production system of metal tube, and makes this production system to produce continuously, to adapt to enterprise scale
Production requirement.
Summary of the invention
The technical problem existed based on above-mentioned background technology, the present invention proposes a kind of steel strip tube coiling Automatic Production System.
The present invention proposes a kind of steel strip tube coiling Automatic Production System, including: unwinding device, apparatus for leveling, pipe-reeling device,
Welder, cutting device, traction apparatus and driving means, wherein:
Unwinding device is for unreeling steel coil strip；
Apparatus for leveling is positioned at the outfan of unwinding device for being flattened by steel band；
Pipe-reeling device is positioned at the apparatus for leveling side away from unwinding device for two laterally inner sides by the steel band after leveling
Rolling forms the socket extended along a length thereof；
Welder is positioned at the pipe-reeling device side away from apparatus for leveling for the bobbin to pipe-reeling device volume to molding
Abutment joint welds, welder include shaping mechanism and welding mechanism, described shaping mechanism include the first crushing block, second
Crushing block and the first driver element, the first crushing block, the second crushing block lay respectively at the both sides of steel band direction of transfer and relative cloth
Put, and the first crushing block, the second crushing block one side close to each other is cambered surface；First driver element is for driving the first extruding
Block, the second crushing block synchronize carry out close to each other or be located remotely from each other action；Described welding mechanism is positioned at the top of shaping mechanism also
Fixing, Welding Structure includes welding gun and for the second driver element driving welding gun to move back and forth along steel band direction of transfer,
Welding gun is between the first crushing block, the second crushing block；
Cutting device is positioned at the welder side away from pipe-reeling device for carrying out the socket completing abutment joint welding
Block；
Pipe-reeling device is near one end of welder and is positioned at the side of welder and cutting device and is provided with and is filled by welding
Put to the linearly extended guide rail in cutting device direction；
Traction apparatus be slidably mounted on guide rail for by through pipe-reeling device volume to molding bobbin by welder to cut
The traction of disconnected device direction；
Driving means is used for driving traction apparatus to move back and forth on guide rail.
Preferably, apparatus for leveling includes the first flattening mechanism, the second flattening mechanism, the 3rd flattening mechanism and actuating unit；
Described first flattening mechanism, the second flattening mechanism, the 3rd flattening mechanism are sequentially sequentially arranged, and the first flattening mechanism includes some
The individual first pair of roller group arranged along three's Sort Direction interval and be parallel to each other, all first pair of roller groups are the most horizontally disposed,
And any one first pair of roller group all includes first pair of roller of arranging up and down and cooperate, the second flattening mechanism is positioned at first
The lower section of flattening mechanism, the second flattening mechanism includes several the second couples arranging along three's Sort Direction interval and being parallel to each other
Roller group, all second pair of roller groups are the most horizontally disposed, and any one second pair of roller group all includes arranging up and down and mutually
Coordinate second to roller；Described 3rd flattening mechanism is positioned at the lower section of the second flattening mechanism, and the 3rd flattening mechanism includes several
The 3rd pair of roller group arranged along three's Sort Direction interval and be parallel to each other, all 3rd pair of roller groups are the most horizontally disposed, and
Any one the 3rd pair of roller group all includes the 3rd pair of roller of arranging up and down and cooperate；Described power unit is for driving the
A pair roller group, second pair of roller group and the 3rd pair of roller group synchronous axial system.
Preferably, all first pair of roller groups are respectively positioned in same level.
Preferably, all second pair of roller groups has the height more than zero between two second pair of roller groups of arbitrary neighborhood
It is poor to spend.
Preferably, all 3rd pair of roller groups are respectively positioned in same level.
Preferably, pipe-reeling device includes several direction of transfer spaced apart roll post groups along apparatus for leveling, and appoints
A roll post group of anticipating all includes being positioned at steel band direction of transfer both sides and the first roll post positioned opposite and the second roll post；Institute
State the first roll post, installation is the most vertically arranged and rotated to the second roll post, and along the direction of transfer of steel band, the first roll post,
Spacing between two roll posts is successively decreased successively；Described first roll post, the second roll post all include arranging the along its short transverse
One cylindrical portion, the second cylindrical portion, and between the first cylindrical portion and the second cylindricality and with first cylindrical portion the second cylindrical portion
Integrated curved face part；First cylindrical portion, the second cylindrical portion and curved face part are coaxially arranged；The external diameter of curved face part is respectively by two ends
Successively decrease successively in direction, portion wherein.
Preferably, cutting device includes workbench and cutting mechanism, and workbench is horizontally disposed for carrying out described socket
Supporting, workbench is provided with cutting knife groove；Cutting mechanism includes cutting wheel and for driving cutting wheel to carry out cutting the 3rd of work
Drive mechanism, described cutting wheel is positioned at the top of cutting knife groove adaptive with cutting knife groove.
Preferably, the upper table surface of workbench is provided with the arc-shaped limit groove that steel band direction of transfer extends and two ends are through.
Preferably, traction apparatus includes the base being arranged on guide rail and is arranged on base the clamping machinery for clamping
Hands.
In the present invention, unwinding device is set, for steel coil strip is unreeled；Apparatus for leveling is set, after to unreeling
Steel band flatten；Pipe-reeling device is set, for rolling the steel band after leveling so that it is form socket；Welding is set
Device, for welding the abutment joint of socket；Cutting device is set, for blocking the socket after welding；Arrange
Traction apparatus, for drawing the socket through pipe-reeling device roll-forming so that it is sequentially passes through welder and blocks dress
Put, and when socket is welded by socket through welder, welder, when socket arrives pre-fixed length through cutting device
When spending, socket is blocked by cutting device.
In sum, a kind of steel strip tube coiling Automatic Production System that the present invention proposes, it is achieved that steel band is processed into pipe fitting
Consecutive production, substantially increase production efficiency, adapt to enterprise scale Production requirement.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of steel strip tube coiling Automatic Production System that the present invention proposes；
Fig. 2 is the pipe crimping schematic diagram of pipe-reeling device described in a kind of steel strip tube coiling Automatic Production System that the present invention proposes；
Fig. 3 be the first roll post in pipe-reeling device described in a kind of steel strip tube coiling Automatic Production System that the present invention proposes,
The operating diagram making steel band bend to cylinder that cooperates of the second roll post.
Detailed description of the invention
Below, by specific embodiment, technical scheme is described in detail.
As Figure 1-3, Fig. 1 is the structural representation of a kind of steel strip tube coiling Automatic Production System that the present invention proposes；Fig. 2
Pipe crimping schematic diagram for pipe-reeling device described in a kind of steel strip tube coiling Automatic Production System that the present invention proposes；Fig. 3 is the present invention
First roll post in pipe-reeling device described in a kind of steel strip tube coiling Automatic Production System proposed, the cooperating of the second roll post
Steel band is made to bend to the operating diagram of cylinder.
Reference Fig. 1-3, a kind of steel strip tube coiling Automatic Production System that the embodiment of the present invention proposes, including: unwinding device 1,
Apparatus for leveling 2, pipe-reeling device 3, welder 4, cutting device 5, traction apparatus 6 and driving means, wherein:
Unwinding device 1 is for unreeling steel coil strip.
Apparatus for leveling 2 is positioned at the outfan of unwinding device 1 for being flattened by steel band；Apparatus for leveling 2 includes the first evener
Structure the 21, second flattening mechanism the 22, the 3rd flattening mechanism 23 and actuating unit；Described first flattening mechanism the 21, second flattening mechanism
22, the 3rd flattening mechanism 23 is sequentially sequentially arranged, and the first flattening mechanism 21 includes that several are spaced cloth along three's Sort Direction
The first pair of roller group put and be parallel to each other, all first pair of roller groups are the most horizontally disposed and are located in the same horizontal plane, all
In first pair of roller group, any one first pair of roller group all includes first pair of roller of arranging up and down and cooperate, and second is whole
Flattening mechanism 22 is positioned at the lower section of the first flattening mechanism 21, and the second flattening mechanism 22 includes that several are spaced cloth along three's Sort Direction
The second pair of roller group put and be parallel to each other, all second pair of roller groups are the most horizontally disposed, and in all second pair of roller groups, appoint
Anticipating and have the difference in height more than zero between second pair of roller group of adjacent two, in all second pair of roller groups, any one is years old
Two pairs of roller groups all include second pair of roller of arranging up and down and cooperate；Described 3rd flattening mechanism 23 is positioned at the second evener
The lower section of structure 22, the 3rd flattening mechanism 23 includes that several are spaced the 3rd arranging and being parallel to each other to stone roller along three's Sort Direction
Roller group, all 3rd pair of roller groups are the most horizontally disposed and are respectively positioned in same level, in all 3rd pair of roller groups, any one
Individual 3rd pair of roller group all includes the 3rd pair of roller of arranging up and down and cooperate；Described power unit is for driving first to stone roller
Roller group, second pair of roller group and the 3rd pair of roller group synchronous axial system.In flattening course, the beneficially second flattening mechanism 22 with
Difference in height between adjacent two second pair of roller groups in difference in height between first flattening mechanism 21, the second flattening mechanism 22,
And the difference in height that the 3rd between flattening mechanism 23 and the second flattening mechanism 22, make steel band be drawn by downward during transmitting
Pull, thus accelerate to flatten speed, improve leveling effect.
Pipe-reeling device 3 is positioned at the apparatus for leveling 2 side away from unwinding device 1 for by inside for the both sides of the steel band after leveling
Portion's rolling forms the socket extended along a length thereof；Pipe-reeling device 3 includes that several are spaced layout along the direction of transfer of apparatus for leveling 2
Roll post group, and any one roll post group all includes being positioned at steel band direction of transfer both sides and the first roll post positioned opposite
With the second roll post；Installation is the most vertically arranged and rotated to described first roll post, the second roll post, and along the sender of steel band
To, the spacing between the first roll post, the second roll post is successively decreased successively；Described first roll post, the second roll post all include edge
Its short transverse arranges the first cylindrical portion, the second cylindrical portion, and between the first cylindrical portion and the second cylindricality and with first
The integrated curved face part of cylindrical portion the second cylindrical portion；First cylindrical portion, the second cylindrical portion and curved face part are coaxially arranged；Curved face part
External diameter successively decreased successively in direction, portion wherein by two ends respectively.When steel band is from the first roll post of pipe-reeling device 3, the second roll post
In through time, along with being gradually reduced of spacing between the first roll post, the second roll post, steel band both sides by the first roll post, the
The restriction of two roll posts againsts the curved face part heart portion the most wherein in the first roll post, the second roll post and draws close until its both sides
Till side docking forms socket.
Welder 4 is positioned at the pipe-reeling device 3 side away from apparatus for leveling 2 for pipe-reeling device volume 3 cylinders to molding
The abutment joint of pipe welds, and welder 4 includes that shaping mechanism 41 and welding mechanism 42, described shaping mechanism 41 include first
Crushing block the 411, second crushing block 412 and the first driver element, first crushing block the 411, second crushing block 412 lays respectively at steel band
The both sides of direction of transfer and positioned opposite, and first crushing block the 411, second crushing block 412 one side close to each other is cambered surface；
First driver element synchronizes carry out close to each other or be located remotely from each other dynamic for driving first crushing block the 411, second crushing block 412
Make；Described welding mechanism 42 is positioned at the top of shaping mechanism 41 and fixes, and Welding Structure includes welding gun and for driving welding gun edge
The second driver element that steel band direction of transfer moves back and forth, welding gun be positioned at first crushing block the 411, second crushing block 412 it
Between.During welding, socket is extruded by the both sides cooperated from socket first with first crushing block the 411, second crushing block 412
Fixing, make gap between abutment joint adapt to welding demand, then the abutment joint of socket is welded by recycling welding mechanism 42.
Cutting device 5 is positioned at the welder 4 side away from pipe-reeling device 3 for entering the socket completing abutment joint welding
Row blocks；Cutting device 5 includes workbench 51 and cutting mechanism 52, and workbench 51 is horizontally disposed for carrying out described socket
Support, workbench 51 is provided with cutting knife groove；Cutting mechanism 52 includes cutting wheel and for driving cutting wheel to carry out cutting the of work
Three drive mechanisms, described cutting wheel is positioned at the top of cutting knife groove adaptive with cutting knife groove.Cutting when blocking, in cutting mechanism 52
Wheel moves down and blocks, with cutting knife slot fit, the socket being in therebetween.
Pipe-reeling device 3 is near one end of welder 4 and is positioned at the side of welder 4 and cutting device 5 and is provided with by welding
Connection device 4 is to the linearly extended guide rail in cutting device 5 direction 7；Traction apparatus 6 is slidably mounted on guide rail 7 for will be through pipe crimping
Device volume 3 is drawn to cutting device 5 direction to the bobbin of molding by welder 4；Traction apparatus 6 includes being arranged on guide rail 7
Base and be arranged on base for clamping clamping manipulator；Driving means is used for driving traction apparatus 6 on guide rail 7
Backhaul dynamic.
In the present embodiment, the upper table surface of workbench 51 is provided with the arc-shaped limit that steel band direction of transfer extends and two ends are through
Groove, so that socket is when being towed device 6 pulling motion, by arc-shaped limit groove process, so that, cutting device 5 is blocking
During operation, socket is spacing by arc-shaped limit groove, will not shake.
In the present invention, unwinding device 1 is set, for steel coil strip is unreeled；Apparatus for leveling 2 is set, for unreeling
After steel band flatten；Pipe-reeling device 3 is set, for rolling the steel band after leveling so that it is form socket；Weldering is set
Connection device 4, for welding the abutment joint of socket；Cutting device 5 is set, for blocking the socket after welding；
Traction apparatus 6 is set, for drawing the socket through pipe-reeling device 3 roll-forming so that it is sequentially pass through welder 4 He
Cutting device 5, and when socket is through welder 4, socket is welded by welder 4, when socket is through cutting device 5
When arriving predetermined length, socket is blocked by cutting device 5.
From the foregoing, it will be observed that a kind of steel strip tube coiling Automatic Production System that the present invention proposes, it is achieved that steel band is processed into pipe fitting
Consecutive production, substantially increase production efficiency, adapt to enterprise scale Production requirement.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (9)
1. a steel strip tube coiling Automatic Production System, it is characterised in that including: unwinding device (1), apparatus for leveling (2), pipe crimping fill
Put (3), welder (4), cutting device (5), traction apparatus (6) and driving means, wherein:
Unwinding device (1) is for unreeling steel coil strip；
Apparatus for leveling (2) is positioned at the outfan of unwinding device (1) for being flattened by steel band；
Pipe-reeling device (3) is positioned at the apparatus for leveling (2) side away from unwinding device (1) for lateral by two of the steel band after leveling
Internal rolling forms the socket extended along a length thereof；
Welder (4) is positioned at the pipe-reeling device (3) side away from apparatus for leveling (2) for rolling up pipe-reeling device (3) to molding
The abutment joint of bobbin weld, welder (4) includes shaping mechanism (41) and welding mechanism (42), described shaping mechanism
(41) include the first crushing block (411), the second crushing block (412) and the first driver element, the first crushing block (411), second squeeze
Briquetting (412) lays respectively at the both sides of steel band direction of transfer and positioned opposite, and the first crushing block (411), the second crushing block
(412) one side close to each other is cambered surface；First driver element is for driving the first crushing block (411), the second crushing block
(412) synchronize carry out close to each other or be located remotely from each other action；Described welding mechanism (42) is positioned at the top of shaping mechanism (41) also
Fixing, Welding Structure includes welding gun and for the second driver element driving welding gun to move back and forth along steel band direction of transfer,
Welding gun is positioned between the first crushing block (411), the second crushing block (412)；
Cutting device (5) is positioned at the welder (4) side away from pipe-reeling device (3) for the socket completing abutment joint welding
Block；
Pipe-reeling device (3) is near one end of welder (4) and is positioned at the side of welder (4) and cutting device (5) and is provided with
By welder (4) to the linearly extended guide rail in cutting device (5) direction (7)；
Traction apparatus (6) is slidably mounted on upper being used for of guide rail (7) will be through the bobbin of pipe-reeling device (3) volume to molding by welder
(4) draw to cutting device (5) direction；
Driving means is used for driving traction apparatus (6) to move back and forth on guide rail (7).
Steel strip tube coiling Automatic Production System the most according to claim 1, it is characterised in that apparatus for leveling (2) includes first
Flattening mechanism (21), the second flattening mechanism (22), the 3rd flattening mechanism (23) and actuating unit；Described first flattening mechanism
(21), the second flattening mechanism (22), the 3rd flattening mechanism (23) be sequentially sequentially arranged, and the first flattening mechanism (21) includes some
The individual first pair of roller group arranged along three's Sort Direction interval and be parallel to each other, all first pair of roller groups are the most horizontally disposed,
And any one first pair of roller group all includes that first pair of roller of arranging up and down and cooperate, the second flattening mechanism (22) are positioned at
The lower section of the first flattening mechanism (21), the second flattening mechanism (22) includes that several are arranged and mutual along three's Sort Direction interval
Second pair of parallel roller group, all second pair of roller groups are the most horizontally disposed, and any one second pair of roller group all includes
Lower layout and the second pair of roller that cooperate；Described 3rd flattening mechanism (23) is positioned at the lower section of the second flattening mechanism (22), the
Three flattening mechanisms (23) include that several are arranged and the 3rd pair of roller group being parallel to each other along three's Sort Direction interval, all the
Three pairs of roller groups are the most horizontally disposed, and any one the 3rd pair of roller group all includes arranging and cooperate the 3rd up and down to stone roller
Roller；Described power unit is for driving first to roller group, second pair of roller group and the 3rd pair of roller group synchronous axial system.
Steel strip tube coiling Automatic Production System the most according to claim 2, it is characterised in that all first pair of equal positions of roller group
In same level.
Steel strip tube coiling Automatic Production System the most according to claim 2, it is characterised in that appoint in all second pair of roller groups
Anticipate, between second pair of roller group of adjacent two, there is the difference in height more than zero.
Steel strip tube coiling Automatic Production System the most according to claim 2, it is characterised in that all 3rd pair of equal positions of roller group
In same level.
Steel strip tube coiling Automatic Production System the most according to claim 1, it is characterised in that pipe-reeling device (3) includes some
The individual direction of transfer spaced apart roll post group along apparatus for leveling (2), and any one roll post group all includes being positioned at steel band
Direction of transfer both sides and the first roll post positioned opposite and the second roll post；Described first roll post, the second roll post are the most perpendicular
Directly arrange and rotate installation, and along the direction of transfer of steel band, the spacing between the first roll post, the second roll post is successively decreased successively；
Described first roll post, the second roll post all include arranging the first cylindrical portion, the second cylindrical portion along its short transverse, and are positioned at
Between first cylindrical portion and the second cylindricality and with the first cylindrical portion integrated curved face part of the second cylindrical portion；First cylindrical portion,
Second cylindrical portion and curved face part are coaxially arranged；The external diameter of curved face part is successively decreased in direction, portion wherein successively by two ends respectively.
Steel strip tube coiling Automatic Production System the most according to claim 1, it is characterised in that cutting device (5) includes work
Platform (51) and cutting mechanism (52), workbench (51) is horizontally disposed for being supported described socket, and workbench sets on (51)
There is cutting knife groove；Cutting mechanism (52) includes cutting wheel and for driving cutting wheel to carry out cutting the 3rd drive mechanism of work, institute
State cutting wheel and be positioned at the top of cutting knife groove adaptive with cutting knife groove.
Steel strip tube coiling Automatic Production System the most according to claim 7, it is characterised in that on the upper table surface of workbench (51)
It is provided with the arc-shaped limit groove that steel band direction of transfer extends and two ends are through.
Steel strip tube coiling Automatic Production System the most according to claim 1, it is characterised in that traction apparatus (6) includes installing
Base on guide rail (7) and the clamping manipulator being arranged on base for clamping.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610738660.9A CN106238501B (en) | 2016-08-27 | 2016-08-27 | A kind of steel strip tube coiling Automatic Production System |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610738660.9A CN106238501B (en) | 2016-08-27 | 2016-08-27 | A kind of steel strip tube coiling Automatic Production System |
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| Publication Number | Publication Date |
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| CN106238501A true CN106238501A (en) | 2016-12-21 |
| CN106238501B CN106238501B (en) | 2018-05-08 |
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| CN115415736A (en) * | 2022-06-06 | 2022-12-02 | 桐庐忠朝水暖器材有限公司 | Method for manufacturing stainless steel pipe |
| CN117161632A (en) * | 2023-11-02 | 2023-12-05 | 天津市腾丰钢管有限公司 | Automatic welding device and welding method for manufacturing welded pipe |
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| CN115415736A (en) * | 2022-06-06 | 2022-12-02 | 桐庐忠朝水暖器材有限公司 | Method for manufacturing stainless steel pipe |
| CN117161632A (en) * | 2023-11-02 | 2023-12-05 | 天津市腾丰钢管有限公司 | Automatic welding device and welding method for manufacturing welded pipe |
| CN117161632B (en) * | 2023-11-02 | 2023-12-29 | 天津市腾丰钢管有限公司 | Automatic welding device and welding method for manufacturing welded pipe |
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| CN106238501B (en) | 2018-05-08 |
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