CN206305233U - A kind of flange straightener - Google Patents
A kind of flange straightener Download PDFInfo
- Publication number
- CN206305233U CN206305233U CN201621406680.8U CN201621406680U CN206305233U CN 206305233 U CN206305233 U CN 206305233U CN 201621406680 U CN201621406680 U CN 201621406680U CN 206305233 U CN206305233 U CN 206305233U
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- frame
- scissor
- base
- profile steel
- flange straightener
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Abstract
The utility model discloses a kind of flange straightener,Aim to provide a kind of flange straightener for having the advantages that to facilitate H profile steel to enter main frame from transmission roller,Its drip irrigation device is,The frame includes upper frame and base,Connected by telescopic outrigger between upper frame and base,Lifting mechanism is additionally provided with base,It includes scissor-type lifting part and lifting oil cylinder,Scissor-type lifting part includes intersecting and being hinged first lift arm and the second lift arm of setting,The side of scissor-type lifting part is connected with gantry rotation,Opposite side is connected with housing slide,And by lifting oil cylinder driving activity,Operating personnel can change the angle that H profile steel passes in and out main frame by adjusting the height of gear unit,So that H profile steel more successfully can be transported on transmission roller from main frame,Simultaneous retractable supporting leg and scissor-type lifting part can make the process of its lifting more steady.
Description
Technical field
The utility model is related to H profile steel process equipment field, more particularly to a kind of flange straightener.
Background technology
H profile steel is a kind of area of section distribution more optimization, more rational economic section high efficiency section bar of the ratio of strength to weight, because of it
Section is identical with English alphabet " H " and gains the name.Because each position of H profile steel is with orthogonal arrangement, therefore H profile steel is in each side
All have the advantages that bending resistance is strong, simple, cost-effective and lightweight construction of constructing upwards, be widely used.
Because H profile steel is welding forming, influenceed by high temperature to necessarily lead to flexural deformation in welding process, so as to influence
The bending resistance of H profile steel, and then influence it to use, therefore H profile steel needs to be corrected after welding, makes its recovery original
State, present multiplex flange straightener corrects to it.
At present, the Chinese patent of Publication No. CN104056876A discloses a kind of H profile steel edge of a wing correcting device, and it includes
Frame and the motor being located in the frame, are provided with correction wheel in the rotary shaft of the motor, in the lower end of the correction wheel
Pulley is provided with, stopping means is respectively equipped with the front and back end of the correction wheel, the stopping means is arranged in the frame,
The front and back end of frame is respectively equipped with flowing water wire body.The material of described correction wheel is bearing steel, its a diameter of 10cm-100cm.Institute
The stopping means stated includes support and limited block, and the limited block is in coincide with the upper and lower to be movably connected on support.
Although this H profile steel edge of a wing correcting device velocity-stabilization, mobile guide is accurate, corrects both sides symmetrical,
In actual production process, due to transmission roller it is highly identical with main frame, some upstream end generation longitudinal deformation H profile steel not
It is easy to align with, can be stuck between main frame and transmission roller, so as to influence the correction of H profile steel.
Utility model content
The purpose of this utility model is to provide a kind of flange straightener, its have facilitate H profile steel from transmission roller enter master
The advantage of machine.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of flange straightener, including main frame and gear unit, gear unit are connected to frame including frame and some
On transmission drum, the frame include upper frame and base, between upper frame and base by telescopic outrigger connect, also set on base
There is lifting mechanism, it includes scissor-type lifting part and lifting oil cylinder, scissor-type lifting part includes intersecting and being hinged setting
The first lift arm and the second lift arm, the side of scissor-type lifting part is connected with gantry rotation, and opposite side connects with housing slide
Connect, and by lifting oil cylinder driving activity.
Be arranged such, lifting oil cylinder can promote scissor-type lifting part, make angle between two lift arms increase or
Reduce, it becomes possible to change the height of lifting mechanism, so as to change the distance between upper frame and base, telescopic outrigger can follow lift
Rise mechanism raise or reduce, come secondary lever mechanism and upper frame be supported, H profile steel transmission drum it is enterprising enter main frame when,
The height of transmission drum can be heightened, accordingly even when H profile steel there occurs longitudinal deformation, as long as transmission drum is adjusted to foot
Enough height, H profile steel also can smoothly enter main frame, when H profile steel sends out main frame, can turn down the height of transmission drum,
H profile steel is more successfully transported on transmission roller from main frame, and change the height of frame by scissor-type lifting part
Degree can make the process of its change more steady.
Further set：The output shaft of the lifting oil cylinder is hinged on one end that the second lift arm is slidably connected with base.
It is arranged such, the output shaft of lifting oil cylinder stretches out or withdraws, it becomes possible to drive the second lift arm sliding on base
Move, so as to reach the height for changing the distance between two lift arms and whole frame, and the strength of lifting oil cylinder is larger,
The process of lifting is more steady, and whole frame can be made to carry out stablizing lifting.
Further set：The side of the scissor-type lifting part is fixed with frame by being connected bearing pin, and opposite side is hinged with
Roller, roller is placed in the slideway being arranged in frame.
It is arranged such, the side of scissor-type lifting part is fixed with frame by being connected bearing pin, it can be made in lifting
Around connection bearing pin rotation, so as to meet the necessary condition of lifting frame, while can be by scissor by its opposite side setting roller
Rolling friction is changed into sliding friction between formula lifting part and frame, so as to reduce the mill between scissor-type lifting part and frame
Damage, extend its service life.
Further set：The frame is provided with driving motor, and driving motor drives frame by transmission belt and drive
Upper some transmission drum synchronous rotaries.
It is arranged such, driving motor rotation, the drive rotation on the output shaft of driving motor is fixed on, so as to drive biography
Dynamic band rotation, reaches the effect of linkage live-roller, so can just drive all of live-roller to enter using same driving motor
Row synchronous rotary, can so make H profile steel enter still dynamic continuation forward slip after gear unit, reach and preferably use
Effect.
Further set：The upper frame is provided with several fixed parts, and transmission drum is connected by rolling bearing with fixed part
Connect.
It is arranged such, transmission drum is fixed in fixed part by rolling bearing, fixed part can be carried out to transmission drum
It is spacing, prevent transmission drum from being slided in frame when H profile steel is transported, transmission drum is tively firm connected to frame
On, to reach more preferable using effect.
Further set：The main frame includes body, correction wheel, active roll tube and spacing pulley, and active roll tube is by setting
The motor put in body drives.
It is arranged such, after H profile steel enters body under the drive of active roll tube, spacing pulley can press from both sides the both sides of H profile steel
Handle, make its both sides smooth and more straightly to being transported outside body, while correct wheel applies pressure to the edge of a wing of H profile steel
Power, so that its is smooth, reaches the effect on the straightening H shaped steel edge of a wing.
Further set：The motor is provided with drive sprocket, and active roll tube is provided with driven sprocket, drive sprocket
By being driven Chain conveyer between driven sprocket.
Be arranged such, the rotation of the output shaft of motor drives drive sprocket rotation, can just be driven by driving-chain from
Movable sprocket and active roll tube rotate, and active roll tube can just drive the H profile steel in body to be slided to outside body, so that the correction wing
Everything goes well with your work carries out for edge.
Preferably, being provided with active hydraulic cylinder in the body, correction wheel is fixed on the output shaft of active hydraulic cylinder, and
And be symmetrical arranged with its center line.
It is arranged such, flange straightener is to apply enough pressure to the edge of a wing position of H profile steel by hydraulic pressure, makes its smooth
And the step of correcting is completed, therefore enough pressure can be brought for correction wheel using active hydraulic cylinder, while by it with output shaft
Center line be symmetrical arranged the area that can expand pressure, make correction wheel more smooth to the edge of a wing of H profile steel pressure.
In sum, the utility model has the advantages that：
Operating personnel can change the angle that H profile steel passes in and out main frame by adjusting the height of gear unit, so that H types
Steel more successfully can be transported on transmission roller from main frame, and simultaneous retractable supporting leg and scissor-type lifting part can make its lifting
Process it is more steady.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1；
Fig. 2 is the structural representation of gear unit in embodiment 1；
Fig. 3 is the structural representation of active roll tube in embodiment 1；
Fig. 4 is the structural representation of main frame in embodiment 1；
Schematic diagram when Fig. 5 is straightening H shaped steel in embodiment 1；
Fig. 6 is the structural representation of gear unit in embodiment 2；
Fig. 7 is for showing the schematic diagram of pushing mechanism in embodiment 3.
In figure, 1, main frame；11st, body；111st, fixed block；12nd, correction wheel；13rd, active roll tube；131st, driven sprocket；14、
Spacing pulley；15th, motor；16th, pedestal；161st, slide rail；162nd, sliding block；17th, active hydraulic cylinder；171st, drive sprocket；
172nd, driving-chain；2nd, gear unit；21st, frame；211st, upper frame；212nd, base；213rd, telescopic outrigger；214th, slideway；215th, it is solid
Determine portion；22nd, transmission drum；221st, rolling bearing；222nd, fixed interior roller；223rd, outer roller is rotated；224th, anti-skidding bed course；23rd, it is driven
Motor；231st, transmission belt；232nd, drive；3rd, drive mechanism；31st, oil cylinder is driven；32nd, connecting rod；321st, gangbar；322nd, cut with scissors
Spindle；323rd, limited block；4th, lifting mechanism；41st, scissor-type lifting part；411st, the first lift arm；412nd, the second lift arm；413、
Connection bearing pin；414th, roller；42nd, lifting oil cylinder；5th, pushing mechanism；51st, pushing motor；52nd, leading screw is promoted；53rd, gear is promoted；
54th, tooth bar is promoted.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment 1：A kind of flange straightener, as shown in figure 1, it includes two parts, centre position is main frame 1, H profile steel
Its edge of a wing can be corrected into the aft engine 1 of main frame 1, it is become smooth, the both sides of main frame 1 are gear unit 2, H types
Steel is entered in body 11 by the gear unit 2 in left side, and the gear unit 2 after completion correction work again from the right side of body 11 is downward
Unit one is transmitted.
As shown in Fig. 2 gear unit 2 includes frame 21, frame 21 is overall to be set in cuboid, and the top of frame 21 is set
There are several transmission drums 22, the position of correspondence transmission drum 22 is provided with several connecting rods 32 in frame 21, connecting rod 32 is consolidated
The two ends of transmission drum 22 are scheduled on, and are fixed by rolling bearing 221, to ensure that transmission drum 22 can be in connecting rod
Rotated on 32 and H profile steel is transported, drive mechanism 3 is additionally provided with frame 21, drive mechanism 3 can drive connecting rod 32 to revolve
Turn, so that lifting or reduction transmission drum 22.
As shown in Fig. 2 the top of connecting rod 32 is connected with transmission drum 22, it is fixed in the frame 21 of the lower section of transmission drum 22
The two ends for having some jointed shafts 322, jointed shaft 322 are hinged with two connecting rods 32 respectively, the frame 21 in the left side of connecting rod 32
On be provided with driving oil cylinder 31, drive the end of oil cylinder 31 to be hinged with frame 21, the lowermost end hinge of its output shaft and connecting rod 32
Connect, drive the output shaft of oil cylinder 31 to stretch out or withdraw and can just drive connecting rod 32 and rotated around jointed shaft 322, so as to drive
The transmission drum 22 of top is raised or reduced.
As shown in Fig. 2 the bottom of adjacent connecting rod 32 is provided with gangbar 321, gangbar 321 respectively with the company of both sides
Extension bar 32 is hinged, when the driving oil cylinder 31 in left side drives first connecting rod 32 to rotate, in the presence of some gangbar 321,
The connecting rod 32 of other positions can follow first connecting rod 32 to make spinning movement, so as to reach in the whole frame 21 of lifting simultaneously
Transmission drum 22 effect.
As shown in Figures 2 and 3, live-roller includes two parts, and it is roller 222 in fixed that its mid diameter is less, with machine
Frame 21 is connected, outside diameter it is larger be rotation outer roller 223, rotate outer roller 223 outer wall on be provided with anti-skidding bed course 224, prevent
Skidding layer 224 is made up of elastomeric material, and when H profile steel is slided in transmission drum 22, anti-skidding bed course 224 can increase its friction,
Prevent from skidding, the frame 21 of the both sides of connecting rod 32 is provided with two limited blocks of cylindrical shape 323, when connecting rod 32 is rotated to two
When on the position of individual limited block 323, limited block 323 can stop connecting rod 32, so as to prevent connecting rod 32 from continuing to rotate, keep away
Exempt from the lifting of transmission drum 22 too high or decline too low and cause damaged in collision.
As shown in Figure 4 and Figure 5, main frame 1 includes two bodies 11 that the first from left right side is oppositely arranged, and body 11 is overall in rectangular
Shape, the also pedestal 16 including lower section of main frame 1, body 11 is arranged on pedestal 16, and pedestal 16 is provided with pushing mechanism 5, machine
The bottom of body 11 is provided with sliding block 162, and the top correspondence position of body 11 is provided with the matched slide rail 161 for using, and slide rail 161 is certainly left
To the right extend and sliding block 162 be embedded in slide rail 161, two such body 11 just can in the presence of pushing mechanism 5 phase
Pair or opposite sliding, so as to change the distance between two bodies 11, adapt to the H profile steel of different in width.
As shown in Figure 4 and Figure 5, pushing motor 51 is fixed with pedestal 16, is fixed with the output shaft of pushing motor 51 and pushed away
Dynamic leading screw 52, the bottom fixed block 111 of body 11, fixed block 111 is slidably connected with pedestal 16, and perforate is left on fixed block 111,
Promote leading screw 52 to be located in perforate, the screw thread matched with promotion leading screw 52 is additionally provided with perforate, when the output of pushing motor 51
Axle is driven when promoting leading screw 52 to rotate, and because pushing motor 51 is integrally fixed on pedestal 16, therefore is being promoted leading screw 52 and is being opened
Under screw thread in hole coordinates, fixed block 111 just can to the left or to the right side slip, so as to drive whole body 11 or so sliding
It is dynamic.
As shown in figure 4, setting limited location pulley 14 towards the side of another body 11 on body 11, spacing pulley 14 is consolidated
It is scheduled on body 11, its position can be changed with the movement of body 11, spacing pulley 14 is arranged in pairs, when H profile steel enters
When between two bodies 11, spacing pulley 14 can block H profile steel, the equal held stationary of the state for making it into and sending out.
As shown in Figure 4 and Figure 5, active hydraulic cylinder 17 is additionally provided with body 11, it is symmetrical on the output shaft of active hydraulic cylinder 17
Two correction wheels 12 are fixed with, the arc surface of correction wheel 12 is set towards another body 11, and H profile steel enters between body 11
Afterwards, correction wheel 12 can be contradicted on the plate in the middle of H profile steel, and thrust by active hydraulic cylinder 17 is flattened, and is made whole
Individual H profile steel keeps smooth.
As shown in figure 4, the right side of body 11 is provided with motor 15, the output shaft of motor 15 extends to two bodies
11 bottom, the bottom base 16 between two bodies 11 is provided with some active roll tubes 13, the two ends of active roll tube 13 with
Pedestal 16 rotates connection, and the right-hand member of active roll tube 13 is fixed with driven sprocket 131, master is fixed with the output shaft of motor 15
Movable sprocket 171, is driven between drive sprocket 171 and driven sprocket 131 by driving-chain 172, and such motor 15 just can
Drive active roll tube 13 to rotate, and the H profile steel for entering main frame 1 is outwards conveyed.
Embodiment 2：A kind of flange straightener, as shown in fig. 6, gear unit 2 includes frame 21, frame 21 includes three portions
Point, its bottom is base 212, and top is shape and the identical upper frame 211 of base 212, is passed through between upper frame 211 and base 212
Some telescopic outriggers 213 are connected, and upper frame 211 and base 212 are overall in cuboid setting, and telescopic outrigger 213 can be according to top
The distance between frame 211 and base 212 adjust the height of its own.
Referring to Fig. 6, the two ends of transmission drum 22 are provided with fixed part 215, and fixed part 215 is overall in half cylinder, its
Bottom is fixed on the top of frame 21, and the two ends of transmission drum 22 are arranged in fixed part 215, and by rolling bearing 221 with
Connection, such transmission drum 22 can just rotate in frame 21, so as to be transported to H profile steel, be additionally provided with frame 21
Driving motor 23, drive 232, drive are respectively and fixedly provided with the output shaft of driving motor 23 and on one end of transmission drum 22
It is driven by transmission belt 231 between 232, the transmission drum 22 in such frame 21 just can be in the drive of driving motor 23
Under rotated with same speed.
As shown in fig. 6, being provided with lifting mechanism 4 between base 212 and upper frame 211, lifting mechanism 4 includes scissor-type lifting
Part 41 and lifting oil cylinder 42, scissor-type lifting part 41 include the first lift arm 411 and the second lift arm 412, the first lift arm 411
Be hinged with the middle of the second lift arm 412, the left end of the first lift arm 411 and the second lift arm 412 respectively with upper frame 211 and base
212 are hinged, and are fixed by connecting bearing pin 413, and their right-hand member is designed with roller 414, in upper frame 211 and base 212
Slideway 214 is provided with, roller 414 is respectively placed in the slideway 214 of upper frame 211 and base 212, and the right side of base 212 is provided with lifting
Oil cylinder 42, the output shaft of lifting oil cylinder 42 is hinged with the right-hand member of the second lift arm 412, and such lifting oil cylinder 42 can just drive
Second lift arm 412 slides to the left or to the right, changes the angle between the first lift arm 411 and the second lift arm 412, so that
Change the height of whole frame 21 and transmission roller.
Embodiment 3：A kind of flange straightener, the difference with embodiment 1 or 2 is, as shown in fig. 7, pushing motor
Promotion gear 53 is fixed with 51 output shaft, the bottom of body 11 opens up fluted, by being fixed with promotion tooth bar in groove
54, promote tooth bar 54 to be engaged with gear 53 is promoted, when the output shaft of pushing motor 51 rotates, promote gear 53 to rotate, due to
The position of pushing motor 51 is fixed, and promotes gear 53 just to drive promotion tooth bar 54 to slide, so as to drive body 11 to be slided
Move.
The above embodiments are only that, to explanation of the present utility model, it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (8)
1. a kind of flange straightener, including main frame（1）And gear unit（2）, gear unit（2）Including frame（21）With some
It is connected to frame（21）On transmission drum（22）, it is characterised in that：The frame（21）Including upper frame（211）And base
（212）, upper frame（211）And base（212）Between pass through telescopic outrigger（213）Connection, base（212）On be additionally provided with lifting mechanism
（4）, it includes scissor-type lifting part（41）And lifting oil cylinder（42）, scissor-type lifting part（41）Including intersecting and it is hinged
The first lift arm for setting（411）With the second lift arm（412）, scissor-type lifting part（41）Side and frame（21）The company of rotation
Connect, opposite side and frame（21）It is slidably connected, and by lifting oil cylinder（42）Driving activity.
2. a kind of flange straightener according to claim 1, it is characterised in that：The lifting oil cylinder（42）Output shaft hinge
It is connected on the second lift arm（412）With base（212）The one end being slidably connected.
3. a kind of flange straightener according to claim 2, it is characterised in that：The scissor-type lifting part（41）Side
With frame（21）By connecting bearing pin（413）Fixed, opposite side is hinged with roller（414）, roller（414）It is placed in and is arranged on frame
（21）On slideway（214）It is interior.
4. a kind of flange straightener according to claim 1, it is characterised in that：The frame（21）It is provided with driving motor
（23）, driving motor（23）By transmission belt（231）And drive（232）Drive frame（21）Upper some transmission drums（22）Together
Step rotation.
5. a kind of flange straightener according to claim 1, it is characterised in that：The upper frame（211）It is provided with several
Fixed part（215）, transmission drum（22）By rolling bearing（221）With fixed part（215）Connection.
6. a kind of flange straightener according to claim 1, it is characterised in that：The main frame（1）Including body（11）, rectify
Positive wheel（12）, active roll tube（13）With spacing pulley（14）, active roller（414）By being arranged on body（11）Interior driving electricity
Machine（15）Drive.
7. a kind of flange straightener according to claim 6, it is characterised in that：The motor（15）It is provided with actively
Sprocket wheel（171）, active roll tube（13）It is provided with driven sprocket（131）, drive sprocket（171）With driven sprocket（131）Between lead to
Cross driving-chain（172）Transmission.
8. a kind of flange straightener according to claim 7, it is characterised in that：The body（11）Inside it is provided with active hydraulic pressure
Cylinder（17）, correction wheel（12）It is fixed on active hydraulic cylinder（17）Output shaft on, and be symmetrical arranged with its center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406680.8U CN206305233U (en) | 2016-12-21 | 2016-12-21 | A kind of flange straightener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406680.8U CN206305233U (en) | 2016-12-21 | 2016-12-21 | A kind of flange straightener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206305233U true CN206305233U (en) | 2017-07-07 |
Family
ID=59252607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621406680.8U Expired - Fee Related CN206305233U (en) | 2016-12-21 | 2016-12-21 | A kind of flange straightener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206305233U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723122A (en) * | 2018-04-23 | 2018-11-02 | 蔡秋菊 | Driving motor for electric automobile axis process units |
| CN109127785A (en) * | 2018-10-25 | 2019-01-04 | 中色（天津）特种材料有限公司 | Aluminium alloy extrusions trimmer |
| CN110834868A (en) * | 2019-11-21 | 2020-02-25 | 胡越云 | Roller assembly line with adjustable roller interval |
| CN112371767A (en) * | 2020-10-24 | 2021-02-19 | 西安坤园航空科技有限公司 | Aluminum profile straightening machine and aluminum profile processing technology using same |
| CN112916928A (en) * | 2021-03-25 | 2021-06-08 | 常州鑫邦装饰材料有限公司 | Slotting device for aluminum veneer and aluminum veneer production process using same |
| CN113059026A (en) * | 2021-03-31 | 2021-07-02 | 中冶东方工程技术有限公司 | Floating straightening device |
| CN114378145A (en) * | 2022-01-25 | 2022-04-22 | 河南三建美辰建筑科技有限公司 | Corner shape correcting device for H-shaped steel processing and using method thereof |
| CN117960845A (en) * | 2024-04-01 | 2024-05-03 | 中铁城建集团第一工程有限公司 | H-shaped steel straightening equipment and straightening method |
-
2016
- 2016-12-21 CN CN201621406680.8U patent/CN206305233U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723122A (en) * | 2018-04-23 | 2018-11-02 | 蔡秋菊 | Driving motor for electric automobile axis process units |
| CN108723122B (en) * | 2018-04-23 | 2019-10-08 | 绍兴市晟途环保科技有限公司 | Driving motor for electric automobile axis process units |
| CN109127785A (en) * | 2018-10-25 | 2019-01-04 | 中色（天津）特种材料有限公司 | Aluminium alloy extrusions trimmer |
| CN110834868A (en) * | 2019-11-21 | 2020-02-25 | 胡越云 | Roller assembly line with adjustable roller interval |
| CN110834868B (en) * | 2019-11-21 | 2021-06-04 | 太仓韬信信息科技有限公司 | Roller assembly line with adjustable roller interval |
| CN112371767A (en) * | 2020-10-24 | 2021-02-19 | 西安坤园航空科技有限公司 | Aluminum profile straightening machine and aluminum profile processing technology using same |
| CN112371767B (en) * | 2020-10-24 | 2022-10-11 | 西安坤园航空科技有限公司 | Aluminum profile straightening machine and aluminum profile processing technology using same |
| CN112916928A (en) * | 2021-03-25 | 2021-06-08 | 常州鑫邦装饰材料有限公司 | Slotting device for aluminum veneer and aluminum veneer production process using same |
| CN113059026A (en) * | 2021-03-31 | 2021-07-02 | 中冶东方工程技术有限公司 | Floating straightening device |
| CN114378145A (en) * | 2022-01-25 | 2022-04-22 | 河南三建美辰建筑科技有限公司 | Corner shape correcting device for H-shaped steel processing and using method thereof |
| CN117960845A (en) * | 2024-04-01 | 2024-05-03 | 中铁城建集团第一工程有限公司 | H-shaped steel straightening equipment and straightening method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170707 Termination date: 20181221 |