CN209565391U - A kind of steel tube straightener with rust removing function - Google Patents
A kind of steel tube straightener with rust removing function Download PDFInfo
- Publication number
- CN209565391U CN209565391U CN201920353050.6U CN201920353050U CN209565391U CN 209565391 U CN209565391 U CN 209565391U CN 201920353050 U CN201920353050 U CN 201920353050U CN 209565391 U CN209565391 U CN 209565391U
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- derusting
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- cylinder
- emitting window
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 50
- 239000010959 steel Substances 0.000 title claims abstract description 50
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000005498 polishing Methods 0.000 claims abstract description 9
- 230000008676 import Effects 0.000 claims abstract description 7
- 235000004443 Ricinus communis Nutrition 0.000 claims description 15
- 238000007664 blowing Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005452 bending Methods 0.000 description 4
- 239000003818 cinder Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model discloses a kind of steel tube straighteners with rust removing function, including being straightened rack, alignment rack is divided into the first collimation region and the second collimation region, the entrance of first collimation region is provided with feed mechanism, derusting mechanism is provided between the outlet and the import of the second collimation region of first collimation region, the first light-emitting window and the second light-emitting window of time interval distribution are provided in first collimation region, laterally alignment channel is formed between first light-emitting window and the second light-emitting window, derusting mechanism includes derust cylinder and the rotating unit for driving derusting cylinder rotation, derusting cylinder is rotatably provided in the first collimation region, and derusting cylinder is provided with the perforative derusting chamber in left and right, derusting chamber and the outlet in laterally alignment channel are connected to each other, multiple polishing circles for contacting with steel pipe are fixed on the inner wall of derusting chamber；Advantage is to improve alignment effect and have rust removing function.
Description
Technical field
The utility model relates to a kind of steel tube straighteners more particularly to a kind of steel pipe with rust removing function to be straightened dress
It sets.
Background technique
In colliery industry, steel pipe is that one kind is commonly used and consumes huge material, some steel pipes are using a period of time
After the case where occuring bending and deformation will affect the security performance used once tube bending deforms, cause security risk, because
This can just come into operation after needing to be straightened it.Having notification number thus is that the Chinese utility model patent of CN204074834U discloses
A kind of straightener for seamless steel pipe comprising rack, rack include left wall plate and right wall plate disposed in parallel, be arranged on left wall plate
There are several drive rolls, several driven vollers is correspondingly arranged on right wall plate, drive roll and driven voller are arranged in same level, main
Gap between dynamic roller and driven voller forms the aligning channel of steel pipe；It is provided with below rack for drive roll conveying power
Motor；The distance between drive roll and the driven voller of corresponding setting are set as 20cm.Drive roll is disposed as with driven voller
Plastic roller.The distance between drive roll and driven voller are set 20cm by above-mentioned apparatus, increases the aligning degree of steel pipe；It will be used for
The drive roll and driven voller of aligning are set as plastic roller, and steel tube surface is avoided to be damaged, and ensure that the quality of steel pipe.
But there are following several respects in it: 1, steel pipe biggish for bending degree, the especially aligning of coil pipe
On, this kind of straightener is difficult to complete straightening operation, and steel pipe is easy to block after entering straightener, it still will cause the damage of steel pipe,
It is general to be straightened effect；2, surface can get rusty steel pipe in use for some time, be removed in order to not influence subsequent using general will do it
Rust processing, the above-mentioned apparatus only only effect of alignment, therefore subsequent need to be equipped with special derusting device to the steel after alignment
Pipe carries out processing of rust removing, ultimately causes the excessively many and diverse heaviness of structure, manufacturing cost is larger.
Summary of the invention
The main purpose of the utility model is to provide a kind of steel tube straighteners with rust removing function, can improve school
Straight effect and there is rust removing function.
To achieve the above objectives, a kind of the technical solution adopted in the utility model are as follows: steel pipe alignment with rust removing function
Device, including alignment rack, the alignment rack are divided into the first collimation region and the second collimation region, first alignment
The entrance in region is provided with feed mechanism, the import of the outlet and second collimation region of first collimation region
Between be provided with derusting mechanism, be provided in first collimation region time interval distribution the first light-emitting window and second turn
Wheel group forms laterally alignment channel, the derusting mechanism packet between first light-emitting window and second light-emitting window
Include derusting cylinder and the rotating unit for driving the described derusting cylinder rotation, the derusting cylinder be rotatably provided in described in the
In one collimation region, and the derusting cylinder is provided with the perforative derusting chamber in left and right, the derusting chamber and the lateral school
The outlet of straight channel is connected to each other, and multiple polishing circles for contacting with steel pipe are fixed on the inner wall of the derusting chamber, described
The second collimation region in be fixed with riser, the third light-emitting window being spaced apart up and down and the 4th turn are provided on the riser
Wheel group, forms longitudinal alignment channel between the third light-emitting window and the 4th light-emitting window, longitudinal alignment is logical
The import in road is connected to each other with the derusting chamber.
The feed mechanism includes mounting plate, the first vertical plate, the second vertical plate, castor, driving wheel and roll-over unit, institute
The first vertical plate and the second vertical plate time interval stated are fixed on the mounting plate, first vertical plate and described
The second vertical plate between be provided with rotatable tripod, the castor is rotatably provided on the tripod, institute
The driving wheel stated is rotatably provided between first vertical plate and second vertical plate, and is driven by rotary electric machine, institute
The castor and the driving wheel stated form the transmission channel for conveying steel pipe, the transmission channel and institute between the two
The lateral alignment channel stated is connected to each other, and the rotary electric machine is fixed on the lateral wall of first vertical plate, and described turns over
Turn unit to be arranged on the mounting plate, and for driving the tripod to overturn so that the castor it is close or
Person is far from the driving wheel.In the structure, castor and driving wheel cooperate, when roll-over unit driving castor is close to main
When driving wheel, castor and driving wheel firm can clamp steel pipe, and driving wheel is rotated under the drive of rotary electric machine, just
It from entering into the first collimation region, adopts the structure in by steel pipe, avoids artificial loading, it is easy to operate.
The roll-over unit includes tumble cylinder and curved rod, and the tripod is connect by connecting shaft axis described
Between first vertical plate and second vertical plate, second vertical plate, the overturning are stretched out in one end of the connecting shaft
Cylinder is hinged on the mounting plate, and the piston rod of the tumble cylinder and one end of the curved rod are hinged, described
The other end of curved rod fixed with the connecting shaft.In the structure, when tumble cylinder carries out retracting motion, it is able to drive
Curved rod moves downward, since tripod and curved rod are fixed, is overturn downward that can synchronize, finally makes castor close
Driving wheel, the two can clamp steel pipe, keep steel pipe not easily to fall off.
Left and right is fixed at intervals with two bearing blocks, the rear and front end point of the derusting cylinder in first collimation region
It is not mounted on by bearing on the bearing block.In the structure, the setting of bearing block is so that derusting cylinder rotation is more smooth.
The rotating unit is made of first pulley, the second belt wheel and driving motor, and the first pulley is coaxially solid
It is scheduled on the derusting cylinder, the first pulley passes through synchronous band connection, the driving electricity with second belt wheel
Machine is fixed in first collimation region, and the output shaft of the driving motor is coaxially fixed with second belt wheel.
In the structure, when driving motor rotation, the rotation of the second belt wheel is driven, is influenced by the second belt wheel and synchronous belt, first pulley
Also it rotates synchronously, the final cylinder that derusts is rotated, and the polishing circle to derust in cylinder carries out processing of rust removing to steel tube surface.
First light-emitting window is made of several linear distributing first rotating wheels and several first motors, institute
The first rotating wheel stated is rotatably provided in first collimation region, the output shaft of the first motor and corresponding institute
The first rotating wheel stated coaxially is fixed.So that the rotation of the first rotating wheel is smooth.
If second light-emitting window by several linear distributing second rotating wheels, several first driving cylinders and
Second motor form is done, multiple first sliding grooves are offered in first collimation region, the first driving cylinder is solid
It being scheduled in first collimation region, the piston rod of the first driving cylinder is fixed with corresponding second motor,
The output shaft of second motor is coaxially fixed after passing through the first sliding groove with corresponding second rotating wheel.The knot
In structure, it is mobile that the second motor and the second rotating wheel are able to drive using the first driving cylinder, convenient for adjusting the first light-emitting window and the
The distance between two light-emitting windows conveniently adapt to the steel pipe of different tube diameters.
The third light-emitting window is by several linear distributing third rotating wheels and several third motor forms, institute
The third rotating wheel stated is rotatably provided on the riser, the output shaft of the third motor with it is corresponding described in third
Rotating wheel is coaxially fixed.So that the rotation of third rotating wheel is smooth.
If the 4th light-emitting window by several linear distributing 4th rotating wheels, several second driving cylinders and
The 4th motor form is done, multiple second sliding slots are offered on the riser, the second driving cylinder is fixed on described
Riser on, the piston rod of the described second driving cylinder with it is corresponding described in the 4th motor fix, the 4th motor
Output shaft is coaxially fixed after passing through the second sliding slot with corresponding 4th rotating wheel.In the structure, driven using second
Cylinder of taking offence is able to drive that the 4th motor and the 4th rotating wheel are mobile, convenient for adjust between third light-emitting window and the 4th light-emitting window away from
From conveniently adapting to the steel pipe of different tube diameters.
It is additionally provided with inflatable body in first collimation region, the inflatable body includes bracket, air pump and more
A blowing nozzle, the bracket are fixed on the exit of the derusting cylinder, and multiple blowing nozzles are fixed on the branch
On frame, and the outlet of the alignment derusting cylinder, multiple blowing nozzles are connect by pipeline with the air pump.Thus
Steel tube surface can be blown off treated anvil cinder, lack steel tube surface and stay residue.
Compared with the prior art, the advantages of the utility model are: passing through the first collimation region and the second collimation region
Setting, using the first light-emitting window and the second light-emitting window in the first collimation region, third light-emitting window in the second collimation region and
4th light-emitting window carries out the alignment of both direction to steel pipe, improves alignment effect, while it is biggish to can adapt to bending degree
Steel pipe is not susceptible to card machine phenomenon；The setting of feed mechanism can automatic feed, so that steel pipe is automatically moved into the first alignment area
Domain avoids artificial loading, improves the safety of operation；The setting of derusting mechanism can polish off the anvil cinder of steel tube surface, remove
Rust cylinder is rotatably provided in the first collimation region, therefore circle of polishing is able to carry out circumference polishing, is reduced polishing dead angle, is improved
The effect of derusting；The utility model can improve alignment effect and have rust removing function.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is the schematic perspective view of feed mechanism in the utility model；
Fig. 3 is the schematic perspective view of feed mechanism decomposing state in the utility model；
Fig. 4 is the schematic perspective view of the utility model decomposing state；
Fig. 5 is the schematic perspective view that rack is straightened in the utility model；
Fig. 6 is the schematic perspective view of rotating unit in the utility model；
Fig. 7 is the schematic perspective view of circle of polishing in the utility model.
Specific embodiment
Invention is described in further detail below in conjunction with figure embodiment.
Embodiment: as shown, a kind of steel tube straightener with rust removing function, including alignment rack 1, it is straightened rack
1 point is the first collimation region 11 and the second collimation region 12, and the entrance of the first collimation region 11 is provided with feed mechanism 13, the
Exporting for one collimation region 11 is provided with derusting mechanism 14 between the import of the second collimation region 12, in the first collimation region 11
It is provided with the first light-emitting window 15 and the second light-emitting window 16 of time interval distribution, between the first light-emitting window 15 and the second light-emitting window 16
Laterally alignment channel 111 is formed, derusting mechanism 14 includes derusting cylinder 141 and the rotating unit for driving derusting cylinder 141 to rotate
142, derusting cylinder 141 is rotatably provided in the first collimation region 11, and the cylinder 141 that derusts is provided with the perforative derusting chamber in left and right
143, derusting chamber 143 and laterally alignment channel 111 outlet be connected to each other, derust chamber 143 inner wall on be fixed with it is multiple be used for
The polishing circle 144 of steel pipe contact, is fixed with riser 121 in the second collimation region 12, is provided on riser 121 and is spaced apart up and down
Third light-emitting window 17 and the 4th light-emitting window 18, longitudinal alignment channel is formed between third light-emitting window 17 and the 4th light-emitting window 18
122, longitudinal import for being straightened channel 122 is connected to each other with derusting chamber 143.
In the present embodiment, feed mechanism 13 include mounting plate 131, the first vertical plate 132, the second vertical plate 133, castor 134,
Driving wheel 135 and roll-over unit 2, the first vertical plate 132 and 133 time interval of the second vertical plate are fixed on mounting plate 131, and first is vertical
Rotatable tripod 136 is provided between plate 132 and the second vertical plate 133, castor 134 is rotatably provided in tripod 136
On, driving wheel 135 is rotatably provided between the first vertical plate 132 and the second vertical plate 133, and is driven by rotary electric machine 137, activity
Wheel 134 forms the transmission channel 138 for conveying steel pipe with driving wheel 135 between the two, and transmission channel 138 and laterally alignment are logical
Road 111 is connected to each other, and rotary electric machine 137 is fixed on the lateral wall of the first vertical plate 132, and roll-over unit 2 is arranged in mounting plate 131
On, and for driving tripod 136 to overturn so that castor 134 close to or far from driving wheel 135.
In the present embodiment, roll-over unit 2 includes tumble cylinder 21 and curved rod 22, and tripod 136 passes through 23 axis of connecting shaft
It connects between the first vertical plate 132 and the second vertical plate 133, the second vertical plate 133 is stretched out in one end of connecting shaft 23, and tumble cylinder 21 is hinged
On mounting plate 131, the piston rod of tumble cylinder 21 and one end of curved rod 22 are hinged, the other end and connecting shaft of curved rod 22
23 is fixed.
In the present embodiment, left and right is fixed at intervals with two bearing blocks 112 in the first collimation region 11, before the cylinder 141 that derusts
Both ends pass through bearing respectively and are mounted on bearing block 112 afterwards.
In the present embodiment, rotating unit 142 is made of first pulley 145, the second belt wheel 146 and driving motor 148, and first
Belt wheel 145 is coaxially fixed on derusting cylinder 141, and first pulley 145 is connect with the second belt wheel 146 by synchronous belt 147, driving electricity
Machine 148 is fixed in the first collimation region 11, and the output shaft of driving motor 148 and the second belt wheel 146 are coaxial fixed.
In the present embodiment, the first light-emitting window 15 by several linear distributing first rotating wheels 151 and several first
Motor 152 forms, and the first rotating wheel 151 is rotatably provided in the first collimation region 11, the output shaft of first motor 152 with it is right
Answer the first rotating wheel 151 coaxially fixed.
In the present embodiment, the second light-emitting window 16 is by several linear distributing second rotating wheels 161, several first drives
It takes offence cylinder 163 and several second motors 162 composition, multiple first sliding grooves 113 is offered in the first collimation region 11, first drives
Cylinder 163 of taking offence is fixed in the first collimation region 11, and the piston rod of the first driving cylinder 163 is fixed with corresponding second motor 162,
The output shaft of second motor 162 is coaxial fixed with corresponding second rotating wheel 161 after first sliding groove 113.
In the present embodiment, third light-emitting window 17 is by several linear distributing third rotating wheels 171 and several thirds
Motor 172 forms, and third rotating wheel 171 is rotatably provided on riser 121, the output shaft of third motor 172 and corresponding third
Rotating wheel 171 is coaxially fixed.
In the present embodiment, the 4th light-emitting window 18 is by several linear distributing 4th rotating wheels 181, several second drives
It takes offence cylinder 182 and several the 4th motors 183 composition, multiple second sliding slots 123, the second driving cylinder is offered on riser 121
182 are fixed on riser 121, and the piston rod of the second driving cylinder 182 is fixed with corresponding 4th motor 183, the 4th motor 183
Output shaft is coaxial fixed with corresponding 4th rotating wheel 181 after second sliding slot 123.
In the present embodiment, inflatable body 19 is additionally provided in the first collimation region, inflatable body 19 includes bracket 191, gas
Pump 192 and multiple blowing nozzles 193, bracket 191 are fixed on the exit of derusting cylinder 141, and multiple blowing nozzles 193 are fixed on bracket
On 191, and the outlet of alignment derusting cylinder 141, multiple blowing nozzles 193 are connect by pipeline with air pump 192.
Claims (10)
1. a kind of steel tube straightener with rust removing function, including alignment rack, it is characterised in that: the alignment rack point
Entrance for the first collimation region and the second collimation region, first collimation region is provided with feed mechanism, described
Derusting mechanism, first alignment are provided between the outlet and the import of second collimation region of first collimation region
The first light-emitting window and the second light-emitting window of time interval distribution, first light-emitting window and described second are provided in region
Laterally alignment channel is formed between light-emitting window, the derusting mechanism includes derusting cylinder and for driving the derusting cylinder to rotate
Rotating unit, the derusting cylinder is rotatably provided in first collimation region, and the derusting cylinder is provided with
The perforative derusting chamber in left and right, the derusting chamber and the outlet in the lateral alignment channel are connected to each other, the derusting chamber
It is fixed with multiple polishing circles for contacting with steel pipe on inner wall, is fixed with riser in second collimation region, it is described
The third light-emitting window and the 4th light-emitting window being spaced apart up and down, the third light-emitting window and the described the 4th are provided on riser
Longitudinal alignment channel is formed between light-emitting window, the import in longitudinal alignment channel is connected to each other with the derusting chamber.
2. a kind of steel tube straightener with rust removing function according to claim 1, it is characterised in that: the feeding
Mechanism includes mounting plate, the first vertical plate, the second vertical plate, castor, driving wheel and roll-over unit, first vertical plate and described
The second vertical plate time interval be fixed on the mounting plate, be arranged between first vertical plate and second vertical plate
There is rotatable tripod, the castor is rotatably provided on the tripod, and the driving wheel is rotatably set
It sets between first vertical plate and second vertical plate, and is driven by rotary electric machine, the castor and described
Driving wheel forms the transmission channel for conveying steel pipe, the transmission channel and the lateral alignment channel phase between the two
Docking, the rotary electric machine are fixed on the lateral wall of first vertical plate, and the roll-over unit is arranged in described
On mounting plate, and for driving the tripod overturn so that the castor close to or the separate driving wheel.
3. a kind of steel tube straightener with rust removing function according to claim 2, it is characterised in that: the overturning
Unit includes tumble cylinder and curved rod, and the tripod is connect by connecting shaft axis in first vertical plate and described
Between two vertical plates, second vertical plate is stretched out in one end of the connecting shaft, and the tumble cylinder is hinged on the peace
In loading board, the piston rod of the tumble cylinder and one end of the curved rod are hinged, the other end of the curved rod with
The connecting shaft is fixed.
4. a kind of steel tube straightener with rust removing function according to claim 1, it is characterised in that: described first
Left and right is fixed at intervals with two bearing blocks in collimation region, and the rear and front end of the derusting cylinder passes through bearing respectively and is mounted on institute
On the bearing block stated.
5. a kind of steel tube straightener with rust removing function according to claim 4, it is characterised in that: the rotation
Unit is made of first pulley, the second belt wheel and driving motor, and the first pulley is coaxially fixed on the derusting cylinder,
For the first pulley with second belt wheel by synchronous band connection, the driving motor is fixed on first school
In straight region, the output shaft of the driving motor is coaxially fixed with second belt wheel.
6. a kind of steel tube straightener with rust removing function according to claim 1, it is characterised in that: described first
Light-emitting window is made of several linear distributing first rotating wheels and several first motors, and first rotating wheel can turn
Dynamic to be arranged in first collimation region, the output shaft of the first motor and corresponding first rotating wheel are coaxial
It is fixed.
7. a kind of steel tube straightener with rust removing function according to claim 6, it is characterised in that: described second
Light-emitting window by several linear distributing second rotating wheels, several the first driving cylinders and several second motor forms,
Multiple first sliding grooves are offered in first collimation region, the first driving cylinder is fixed on first alignment
In region, the piston rod of the described first driving cylinder with it is corresponding described in the second motor fix, second motor it is defeated
Shaft is coaxially fixed after passing through the first sliding groove with corresponding second rotating wheel.
8. a kind of steel tube straightener with rust removing function according to claim 1 or 6, it is characterised in that: described
Third light-emitting window is by several linear distributing third rotating wheels and several third motor forms, the third rotating wheel
It is rotatably provided on the riser, the output shaft of the third motor and the corresponding third rotating wheel are coaxially solid
It is fixed.
9. a kind of steel tube straightener with rust removing function according to claim 8, it is characterised in that: described the 4th
Light-emitting window by several linear distributing 4th rotating wheels, several the second driving cylinders and several the 4th motor forms,
Offering multiple second sliding slots on the riser, the second driving cylinder is fixed on the riser, and described the
The piston rod of two driving cylinders with it is corresponding described in the 4th motor fix, the output shaft of the 4th motor is across described the
It is coaxially fixed after two sliding slots with corresponding 4th rotating wheel.
10. a kind of steel tube straightener with rust removing function according to claim 1, it is characterised in that: described
Inflatable body is additionally provided in one collimation region, the inflatable body includes bracket, air pump and multiple blowing nozzles, the branch
Frame is fixed on the exit of the derusting cylinder, and multiple blowing nozzles are fixed on the bracket, and described in alignment
Derusting cylinder outlet, multiple blowing nozzles are connect by pipeline with the air pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920353050.6U CN209565391U (en) | 2019-03-19 | 2019-03-19 | A kind of steel tube straightener with rust removing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920353050.6U CN209565391U (en) | 2019-03-19 | 2019-03-19 | A kind of steel tube straightener with rust removing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209565391U true CN209565391U (en) | 2019-11-01 |
Family
ID=68335380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920353050.6U Expired - Fee Related CN209565391U (en) | 2019-03-19 | 2019-03-19 | A kind of steel tube straightener with rust removing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209565391U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111069348A (en) * | 2019-12-17 | 2020-04-28 | 贵溪华泰铜业有限公司 | A bar straightener for bar copper processing |
| CN111390061A (en) * | 2020-04-09 | 2020-07-10 | 深圳市景方盈科技有限公司 | Metal wire straightening equipment |
| CN112024769A (en) * | 2020-08-13 | 2020-12-04 | 河南工学院 | Steel wire rust removal and straightening integrated equipment |
| CN115847269A (en) * | 2023-03-01 | 2023-03-28 | 江苏京生管业有限公司 | Galvanized pipe polishing and grinding machine tool |
-
2019
- 2019-03-19 CN CN201920353050.6U patent/CN209565391U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111069348A (en) * | 2019-12-17 | 2020-04-28 | 贵溪华泰铜业有限公司 | A bar straightener for bar copper processing |
| CN111390061A (en) * | 2020-04-09 | 2020-07-10 | 深圳市景方盈科技有限公司 | Metal wire straightening equipment |
| CN111390061B (en) * | 2020-04-09 | 2021-02-23 | 深圳市景方盈科技有限公司 | Metal wire straightening equipment |
| CN112024769A (en) * | 2020-08-13 | 2020-12-04 | 河南工学院 | Steel wire rust removal and straightening integrated equipment |
| CN115847269A (en) * | 2023-03-01 | 2023-03-28 | 江苏京生管业有限公司 | Galvanized pipe polishing and grinding machine tool |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191101 Termination date: 20200319 |