CN113523152B - Cold rolling wiring of reinforcing bar prevents wind - Google Patents
Cold rolling wiring of reinforcing bar prevents wind Download PDFInfo
- Publication number
- CN113523152B CN113523152B CN202110778753.5A CN202110778753A CN113523152B CN 113523152 B CN113523152 B CN 113523152B CN 202110778753 A CN202110778753 A CN 202110778753A CN 113523152 B CN113523152 B CN 113523152B
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- fixedly connected
- gear
- bottom plate
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 17
- 238000005097 cold rolling Methods 0.000 title claims abstract description 15
- 238000004804 winding Methods 0.000 claims abstract description 24
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 230000007306 turnover Effects 0.000 claims abstract description 6
- 239000010960 cold rolled steel Substances 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 46
- 239000010959 steel Substances 0.000 abstract description 46
- 238000000034 method Methods 0.000 abstract description 5
- 238000010030 laminating Methods 0.000 abstract 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 7
- 238000005452 bending Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 240000007643 Phytolacca americana Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
- B21F1/02—Straightening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F23/00—Feeding wire in wire-working machines or apparatus
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Handcart (AREA)
Abstract
The invention discloses a steel bar cold rolling wire feeding anti-winding device which comprises an upright post, wherein the top end of the upright post is rotatably connected with a turnover plate, the top end of the turnover plate is fixedly connected with a base, the inside of the base is rotatably connected with a first gear, a first sliding rod is arranged inside the base, the surface of the first sliding rod is slidably connected with a sliding block, and the surface of the sliding block is rotatably connected with a connecting rod; come the reinforcing bar that has crooked radian to closely laminate the delivery wheel through setting up the auxiliary wheel and dialling the driving wheel, the reinforcing bar just can keep the state of laminating with the conveyer all the time in the transportation like this, avoid the reinforcing bar at the in-process of transportation, break away from the delivery wheel because of the crooked radian of self, cause the steel bar winding and block, prevent also to a certain extent that the reinforcing bar from splitting because of blocking, avoid the reinforcing bar fracture and injure the staff, the potential safety hazard in a work has been eliminated, the functionality and the practicality of device have been increased.
Description
Technical Field
The invention relates to the technical field of cold-rolled steel bars, in particular to an anti-winding device for steel bar cold rolling on-line.
Background
The cold-rolled steel bar is obtained by cold-working a hot-rolled steel bar, for example, the steel bar is cold-drawn and drawn at normal temperature, when the existing cold-rolled steel bar equipment is used for straightening the steel bar, the defects still exist, when the conveyed bent steel bar is straightened, the bending degree of the steel bar which is conveyed at first is fixed, so when the steel bar is transferred to another equipment, if the equipment is not used for fixing the diameter, the steel bar is easy to loosen or even move when the steel bar is pulled, so that when one steel bar is pulled, a plurality of steel bars are pulled together, so that blockage and winding are caused, and because the steel bar is bent to a certain extent when the steel bar is conveyed, if the steel bar and the conveying wheel are not fixed when the steel bar is straightened, or the steel bar is not pulled straight when the steel bar is conveyed, the steel bar is easy to be clamped to be separated from the conveying wheel, so that winding and winding are caused, once the steel bar is easy to be broken when the steel bar is pulled, and further the safety of workers who work around the steel bar is threatened.
Disclosure of Invention
The invention aims to provide an anti-winding device for a steel bar cold rolling line, which aims to solve the problems of easy winding and easy clamping in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: cold rolling line antiwind device of reinforcing bar, including the stand, the top of stand is rotated and is connected with the folded plate that turns over, the top fixedly connected with base of folded plate turns over, the inside of base is rotated and is connected with first gear, the inside of base is provided with first slide bar, the sliding surface of first slide bar is connected with the sliding block, the sliding surface of sliding block rotates and is connected with the connecting rod, the fixed surface of sliding block is connected with the pole setting, the fixed surface of top of stand is connected with the retainer plate, the fixed surface of top of stand is connected with the bottom plate, the inside of bottom plate rotates and is connected with the second gear, the inside sliding connection of bottom plate has the removal to press from both sides, the inside sliding connection of bottom plate has the removal to change the handle, the fixed surface of bottom plate is connected with the mounting, the top fixedly connected with fixed plate of stand, the fixed surface of fixed plate rotates and is connected with the auxiliary wheel, the top fixedly connected with magnet of stand, the inside of stand rotates and is connected with the sector, the fixed surface of sector is connected with dials the driving wheel, the inside of stand is provided with the second slide bar, the inside sliding connection of second slide bar has the slider.
Preferably, in the above anti-winding device for cold rolling and winding of steel bars, two first gears are provided, and are engaged with each other pairwise, and one of the first gears is fixedly connected with the driving device.
Based on the technical characteristics, the driving device is used for driving one first gear fixedly connected with the driving device to rotate, and the other first gear is driven to rotate by meshing.
Preferably, in the above anti-winding device for cold rolling and winding of steel bars, one end of the connecting rod, which is far away from the vertical rod, is rotatably connected to the surface of the first gear, and is the first gear located at the rearmost midpoint of the base.
Based on above-mentioned technical characteristic, utilize the rotation of first gear to drive the sliding block and carry out sliding movement, and then drive the pole setting and remove.
Preferably, in the above-mentioned cold rolling winding-preventing device of reinforcing bar, the retainer plate sets up to hollow out construction, and the bottom plate is located the inside of retainer plate.
Based on the technical characteristics, the reinforcing steel bars are limited firstly by the fixing rings, and then are limited secondarily by the device on the bottom plate.
Preferably, in the above anti-winding device for cold rolling and winding of steel bars, teeth are disposed on one side of the movable clamp and one side of the movable rotating handle close to the second gear, the teeth and the second gear are engaged with each other, and a spring is fixedly connected between the movable clamp and the bottom plate.
Based on the technical characteristics, the second gear is driven to move by the movement of the movable rotating handle, and the movable clamp is driven to move by the meshing of the second gear and the movable clamp.
Preferably, in the above anti-winding device for cold rolling and winding of steel bars, three rectangular grooves are formed in the surface of the fixing member, a blocking rod is arranged on the surface of the movable rotating handle, and the blocking rod and the rectangular grooves in the surface of the fixing member are mutually clamped.
Based on the technical characteristics, the moving position of the movable rotating handle is fixed by clamping the stop lever and the rectangular sliding groove.
Preferably, in the above anti-winding device for cold-rolling and winding of steel bar, the movable handle may be rotated at an end thereof away from the base plate, and a ball may be disposed on a surface of an end of the movable clamp away from the base plate.
Based on the technical characteristics, the stop lever on the rotating handle is convenient to move to rotate, and the ball bearings are convenient to move the steel bars.
Preferably, in the above anti-wind device for cold rolling and winding of steel bar, two magnets are provided, and the other magnet is located on the surface of the auxiliary wheel, and the two magnets have different magnetism.
Based on the technical characteristics, the two magnets are driven to adsorb by utilizing the principle that the magnets attract each other in opposite polarities.
Preferably, in the above cold-rolled steel bar winding-up anti-winding device, the surface of the sector plate is provided with five arc-shaped sliding grooves and five rectangular sliding grooves, and the two sliding grooves are connected together.
Based on the technical characteristics, the sliding groove is used for facilitating the sliding movement of the sliding part on the sector plate.
Preferably, in the cold rolling winding-up preventing device for the steel bar, a cylindrical rod is arranged on the surface of the sliding part, the cylindrical rod slides on the arc-shaped sliding groove, and the cylindrical rod and the rectangular sliding groove are mutually clamped.
Based on the technical characteristics, the rotating angle of the rotating plate is controlled by clamping the cylindrical rod and the rectangular sliding groove.
Compared with the prior art, the invention has the beneficial effects that: the auxiliary wheels and the poking wheels are arranged to enable the reinforcing steel bars with the bending radian to be tightly attached to the conveying wheels, so that the reinforcing steel bars can be always attached to the conveying device in the conveying process, the reinforcing steel bars are prevented from being separated from the conveying wheels due to the self bending radian in the conveying process to cause winding and clamping of the reinforcing steel bars, the reinforcing steel bars are prevented from being broken due to clamping to a certain extent, the reinforcing steel bars are prevented from being broken to hurt workers, the potential safety hazard in working is eliminated, and the functionality and the practicability of the device are improved;
through the pole setting and the removal clamp that utilize to remove, can adapt to the reinforcing bar of various degrees of curvature, through adjusting, can let the diameter of device more accord with the crooked diameter of reinforcing bar, and then fine assurance fixed to the reinforcing bar, avoid the reinforcing bar to cause the condition that a reinforcing bar drove the round reinforcing bar to take place when flare-out, fine assurance the unobstructed nature of reinforcing bar at the in-process of transportation, increased the functional and the practicality of device.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic bottom view of the second gear and the mobile clamp of the present invention;
FIG. 3 is a front view of the moving clamp and second gear in accordance with the present invention;
FIG. 4 is a schematic top view of the first gear and the traveling block of the present invention;
FIG. 5 is a front view of a sector plate and a second slide bar of the present invention.
In the figure: 1. a column; 2. turning the folded plate; 3. a base; 4. a first gear; 5. a first slide bar; 6. a slider; 7. a connecting rod; 8. erecting a rod; 9. a stationary ring; 10. a base plate; 11. a second gear; 12. moving the clamp; 13. moving the rotating handle; 14. a fixing member; 15. a fixing plate; 16. an auxiliary wheel; 17. a magnet; 18. a sector plate; 19. a poking wheel; 20. a second slide bar; 21. a slider.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention is shown: an anti-winding device for a cold-rolled wire of a steel bar comprises a vertical column 1, wherein the top end of the vertical column 1 is rotatably connected with a turnover plate 2, the top end of the turnover plate 2 is fixedly connected with a base 3, the inside of the base 3 is rotatably connected with a first gear 4, the inside of the base 3 is provided with a first slide rod 5, the surface of the first slide rod 5 is slidably connected with a slide block 6, the surface of the slide block 6 is rotatably connected with a connecting rod 7, the surface of the slide block 6 is fixedly connected with an upright rod 8, the top end surface of the vertical column 1 is fixedly connected with a fixed ring 9, the fixed ring 9 is arranged in a hollow structure, a bottom plate 10 is arranged inside the fixed ring 9, the fixed ring 9 is used for carrying out first-step limitation on the steel bar, then secondary limitation is carried out by using a device on the bottom plate 10, the top surface of the vertical column 1 is fixedly connected with a bottom plate 10, the inside of the bottom plate 10 is rotatably connected with a second gear 11, and the inside of the bottom plate 10 is slidably connected with a movable clamp 12, the inner part of the bottom plate 10 is connected with a movable rotating handle 13 in a sliding manner, the surface of the bottom plate 10 is fixedly connected with a fixed part 14, the top end of the upright post 1 is fixedly connected with a fixed plate 15, the surface of the fixed plate 15 is connected with an auxiliary wheel 16 in a rotating manner, the top end of the upright post 1 is fixedly connected with a magnet 17, the magnet 17 is provided with two magnets, the other magnet is positioned on the surface of the auxiliary wheel 16, the two magnets 17 have different magnetism, the two magnets 17 are driven to adsorb by utilizing the principle that the magnets 17 attract each other oppositely, the inner part of the upright post 1 is connected with a sector plate 18 in a rotating manner, the surface of the sector plate 18 is provided with an arc-shaped sliding chute and a rectangular sliding chute, the rectangular sliding chutes are provided with five magnets, the two sliding chutes are connected together, a sliding piece 21 can slide on the sector plate 18, the surface of the sector plate 18 is fixedly connected with a poking wheel 19, and the inner part of the upright post 1 is provided with a second sliding rod 20, the inside sliding connection of second slide bar 20 has slider 21, and the surface of slider 21 is provided with the cylinder pole, and the cylinder pole slides on the arc spout, and cylinder pole and the mutual joint of rectangle spout, utilize the joint of cylinder pole and rectangle spout to control rotor plate 18 pivoted angle.
Please refer to fig. 4 in the drawings of the specification: the two first gears 4 are meshed with each other pairwise, one of the two first gears is fixedly connected with the driving device, one first gear 4 fixedly connected with the driving device is driven to rotate by the driving device, and the other first gear 4 is driven to rotate by meshing; the one end of connecting rod 7 keeping away from pole setting 8 rotates the surface of connecting at first gear 4, and is located the first gear 4 of the last positive center position of base 3, utilizes the rotation of first gear 4 to drive sliding block 6 and carries out sliding movement, and then drives pole setting 8 and remove.
Please refer to fig. 2-3 in the drawings of the specification: teeth are arranged on one sides, close to the second gear 11, of the movable clamp 12 and the movable rotating handle 13, the teeth are meshed with the second gear 11, the movable clamp 12 and the movable rotating handle 13 are fixedly connected with the bottom plate 10 through springs, the second gear 11 is driven to move by the movement of the movable rotating handle 13, and the movable clamp 12 is driven to move by the meshing of the second gear 11 and the movable clamp 12; three rectangular grooves are formed in the surface of the fixing piece 14, a blocking rod is arranged on the surface of the movable rotating handle 13, the blocking rod and the rectangular grooves in the surface of the fixing piece 14 are clamped with each other, and the moving position of the movable rotating handle 13 is fixed by clamping the blocking rod and the rectangular sliding grooves; the end of the movable rotating handle 13 far away from the bottom plate 10 can rotate, and the surface of the end of the movable clamp 12 far away from the bottom plate 10 is provided with a ball, so that the stop lever on the movable rotating handle 13 can rotate conveniently, and the ball is convenient for moving the steel bar.
The working principle is as follows: when the device works, firstly, the steel bar is sleeved on the vertical rod 8, then the driving device is opened, the driving device drives the first gear 4 fixedly connected with the driving device to rotate, then the first gear 4 drives the other first gear 4 to rotate, so that the first gear 4 drives the connecting rod 7 to move when rotating, the sliding block 6 is pulled to move when the connecting rod 7 moves, the vertical rod 8 is driven to move when the sliding block 6 moves, the diameter of the steel bar is fixed, then the movable rotating handle 13 is pulled when the steel bar is straightened, so that the movable rotating handle 13 drives the second gear 11 meshed with the movable rotating handle to rotate, so that the second gear 11 drives the movable clamp 12 meshed with the movable clamp to move, so that the movable clamp 12 pushes the steel bar to move and clamp and fix the steel bar, then the movable rotating handle 13 is rotated, the blocking rod on the movable rotating handle 13 is clamped with the groove on the surface of the fixing piece 14, then when the steel bar moves, the auxiliary wheel can be automatically adjusted according to the thickness of the steel bar, because the magnets 17 are mutually adsorbed, the auxiliary wheel 16 can always move downwards and be attached to the steel bar, then the sliding piece 21 is moved downwards, the sliding piece 21 loses the clamping with the rectangular groove on the sector plate 18, the sector plate 18 can rotate, then the sector plate 18 is rotated, the sector plate 18 can drive the poking wheel 19 to move, the poking wheel 19 can poke the steel bar, the steel bar can be straightened in the transportation process, the steel bar is prevented from falling off the transportation wheel, and finally the sliding piece 21 is loosened, and the sliding piece 21 can be clamped with the sector plate 18 again under the action of the springs.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (3)
1. Cold rolling anti-wind device that reaches standard grade of reinforcing bar, including stand (1), its characterized in that: the top end of the upright post (1) is rotatably connected with a turnover plate (2), the top end of the turnover plate (2) is fixedly connected with a base (3), the inside of the base (3) is rotatably connected with a first gear (4), the inside of the base (3) is provided with a first slide bar (5), the surface of the first slide bar (5) is slidably connected with a slide block (6), the surface of the slide block (6) is rotatably connected with a connecting rod (7), the surface of the slide block (6) is fixedly connected with a vertical rod (8), the top end of the upright post (1) is fixedly connected with a fixed ring (9), the top end of the upright post (1) is fixedly connected with a bottom plate (10), the inside of the bottom plate (10) is rotatably connected with a second gear (11), the inside of the bottom plate (10) is slidably connected with a movable fixing part (12), the inside of the bottom plate (10) is slidably connected with a movable rotating handle (13), the surface of the bottom plate (10) is fixedly connected with a fixed plate (14), the top end of the upright post (1) is fixedly connected with a fixed plate (15), the surface of the fixed plate (15) is rotatably connected with an auxiliary wheel (16), the top end of the upright post (1) is fixedly connected with a magnet (17), a toggle wheel (19) is fixedly connected to the surface of the sector plate (18), a second slide bar (20) is arranged inside the upright post (1), and a sliding piece (21) is connected inside the second slide bar (20) in a sliding manner;
two first gears (4) are arranged and meshed with each other pairwise, and one of the first gears is fixedly connected with the driving device;
one end of the connecting rod (7) far away from the vertical rod (8) is rotatably connected to the surface of the first gear (4) and is the first gear (4) located in the rearmost right center of the base (3);
the fixing ring (9) is of a hollow structure, and the bottom plate (10) is located inside the fixing ring (9);
teeth are arranged on one sides, close to the second gear (11), of the movable clamp (12) and the movable rotating handle (13), the teeth are meshed with the second gear (11), and the movable clamp (12) and the movable rotating handle (13) are fixedly connected with the bottom plate (10) through springs;
three rectangular grooves are formed in the surface of the fixing piece (14), a blocking rod is arranged on the surface of the movable rotating handle (13), and the blocking rod and the rectangular grooves in the surface of the fixing piece (14) are mutually clamped;
one end of the movable rotating handle (13) far away from the bottom plate (10) can rotate, and the surface of one end of the movable clamp (12) far away from the bottom plate (10) is provided with a ball;
the two magnets (17) are arranged, the other magnet is positioned on the surface of the auxiliary wheel (16), and the magnetism of the two magnets (17) is different.
2. The cold-rolled steel bar threading anti-winding device according to claim 1, characterized in that: the surface of the sector plate (18) is provided with five arc-shaped sliding grooves and five rectangular sliding grooves which are connected together.
3. The cold-rolled steel bar threading anti-winding device according to claim 2, characterized in that: the surface of slider (21) is provided with the cylinder pole, and the cylinder pole slides on the arc spout, and cylinder pole and the mutual joint of rectangle spout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110778753.5A CN113523152B (en) | 2021-07-09 | 2021-07-09 | Cold rolling wiring of reinforcing bar prevents wind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110778753.5A CN113523152B (en) | 2021-07-09 | 2021-07-09 | Cold rolling wiring of reinforcing bar prevents wind |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113523152A CN113523152A (en) | 2021-10-22 |
| CN113523152B true CN113523152B (en) | 2023-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110778753.5A Active CN113523152B (en) | 2021-07-09 | 2021-07-09 | Cold rolling wiring of reinforcing bar prevents wind |
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| Country | Link |
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| CN (1) | CN113523152B (en) |
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| JP2000190024A (en) * | 1998-12-24 | 2000-07-11 | Daido Steel Co Ltd | Top-up type feeding method for wire coil and wire coil entanglement preventing device used therefor |
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| KR20160099167A (en) * | 2015-02-11 | 2016-08-22 | 주식회사 유벨라 | Wire supplying apparatus of manufacturing apparatus for fish hook |
| CN106391753A (en) * | 2016-12-06 | 2017-02-15 | 安徽马钢比亚西钢筋焊网有限公司 | Loading anti-intertwining device for steel bar cold rolling |
| CN106853496A (en) * | 2017-03-09 | 2017-06-16 | 浙江嘉兴中达建设有限公司 | A kind of feeding device of bar straightener |
| CN209502840U (en) * | 2019-01-30 | 2019-10-18 | 潍坊顺福昌橡塑有限公司 | A kind of steel bead wire production wire rod actinobacillus device |
| CN210333823U (en) * | 2019-07-22 | 2020-04-17 | 万特福建筑构件有限公司 | Anti-winding reinforcing bar unwinding device |
| CN210877322U (en) * | 2019-08-23 | 2020-06-30 | 天津奥杰汽车零部件有限公司 | Feeding system for spring machine |
| CN112872234A (en) * | 2020-09-17 | 2021-06-01 | 江苏省苏中建设集团股份有限公司 | Fabricated reinforcing steel bar straightening structure for building and straightening method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757190A (en) * | 2021-01-25 | 2021-05-07 | 高勇 | Clamping base suitable for calabash processing |
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2021
- 2021-07-09 CN CN202110778753.5A patent/CN113523152B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4355526A (en) * | 1980-03-24 | 1982-10-26 | Wean United, Inc. | Method and apparatus for uncoiling and straightening material for processing thereof |
| JP2000190024A (en) * | 1998-12-24 | 2000-07-11 | Daido Steel Co Ltd | Top-up type feeding method for wire coil and wire coil entanglement preventing device used therefor |
| JP2012040586A (en) * | 2010-08-18 | 2012-03-01 | Toyo Kensetsu Koki Kk | Apparatus for paying out coiled reinforcing bar |
| KR20160099167A (en) * | 2015-02-11 | 2016-08-22 | 주식회사 유벨라 | Wire supplying apparatus of manufacturing apparatus for fish hook |
| CN106391753A (en) * | 2016-12-06 | 2017-02-15 | 安徽马钢比亚西钢筋焊网有限公司 | Loading anti-intertwining device for steel bar cold rolling |
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| CN210333823U (en) * | 2019-07-22 | 2020-04-17 | 万特福建筑构件有限公司 | Anti-winding reinforcing bar unwinding device |
| CN210877322U (en) * | 2019-08-23 | 2020-06-30 | 天津奥杰汽车零部件有限公司 | Feeding system for spring machine |
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| CN113523152A (en) | 2021-10-22 |
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