CN108160766A - A kind of construction site sheet metal processing bender - Google Patents
A kind of construction site sheet metal processing bender Download PDFInfo
- Publication number
- CN108160766A CN108160766A CN201711419271.0A CN201711419271A CN108160766A CN 108160766 A CN108160766 A CN 108160766A CN 201711419271 A CN201711419271 A CN 201711419271A CN 108160766 A CN108160766 A CN 108160766A
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- CN
- China
- Prior art keywords
- sheet metal
- differential
- shaft
- construction site
- driven wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
- B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a kind of construction site sheet metal processing benders, including pedestal, support plate, top plate, first supporting rack, bearing wheels, shaft, threaded portion, swivel nut, hinged seat, lifter plate, connecting rod, feed arrangement, second supporting rack, pinch roller, there are two driven wheel of differential for installation between being located at two threaded portions in shaft, two driven wheel of differential are symmetrical arranged along spindle central, the upper end of two driven wheel of differential is equipped with semicircle bevel gear, semicircle bevel gear is meshed with two driven wheel of differential, but semicircle bevel gear can only once be meshed with one of driven wheel of differential.The configuration of the present invention is simple is reasonable, using efficient and convenient, can be realized by the semicircle bevel gear of setting drives two driven wheel of differential to be rotated respectively, lasting in the case where not changing motor steering can carry out bending operation to sheet metal, greatly improve work efficiency.
Description
Technical field
The present invention relates to a kind of building machinery, specifically a kind of construction site sheet metal processing bender.
Background technology
Building machinery is the general name of mechanical equipment used in engineering construction and town and country construction, it includes excavating machinery, shovels soil fortune
Defeated machinery, compacting machinary, crane tool, piling machinery, pavement construction machinery, concreting machinery, concrete product machinery, reinforcing bar
A variety of mechanical compositions such as grade prestressing force machinery, finishing machinery, aerial operation machine.
The building machinery in construction site is numerous, and sheet metal is often used in construction site, some sheet metals are because remove
The vibrations of fortune process can become out-of-flatness, and some sheet metals need certain camber because of demand, and traditional bending is most
All it is the inefficiency by manually operated, had invented the machinery that bending can be carried out by hydraulic-driven later, although
Many manpowers and time are saved, but hydraulic cylinder continues strength during this kind of bending machinery pushes, after bending is completed
Antiport hydraulic pressure or feed mechanism is just needed to realize the reset of pinch roller, just needs to use more complicated control journey among these
Sequence and equipment are directed to this point and are still significantly improved space.
Invention content
The purpose of the present invention is to provide a kind of construction site sheet metal processing bender, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the present invention provides following technical solution：
A kind of construction site sheet metal processing bender, including pedestal, symmetrical peace at left and right sides of the upper end of the pedestal
Equipped with support plate, support plate is perpendicular with pedestal, and two support plates are arranged in parallel, and the top of support plate is equipped with top
Plate is located on pedestal between two support plates and is equipped with the first supporting rack along central symmetry, and the top of the first supporting rack is equipped with
Bearing wheels, upper end is additionally provided with shaft between described two support plates, and the both ends of shaft are rotatably installed in two branch by bearing block
On the opposite one side of fagging, shaft is parallel with top plate, and shaft upper edge central symmetry is set there are two threaded portion, two threaded portions
Equal length but hand of spiral are on the contrary, be mounted on swivel nut on threaded portion, two swivel nuts are also along the center symmetric setting of shaft, spiral shell
Hinged seat on the lower end outer wall of set is installed, lifter plate is additionally provided between two support plates of the underface of the shaft, is lifted
The upper end edge central symmetry installation of plate is led between the hinged seat on hinged seat and lifter plate on swivel nut respectively there are two hinged seat
It crosses connecting rod to be connected, through feed arrangement is equipped with, the lower end of feed arrangement is equipped with second at the middle part of the lifter plate
Support, the lower end of the second supporting rack are equipped with pinch roller, and installation is located between two threaded portions in the shaft, and there are two from mantle
Gear, two driven wheel of differential are symmetrical arranged along spindle central, and the upper end of two driven wheel of differential is equipped with semicircle bevel gear, partly
Round bevel gear is meshed with two driven wheel of differential, but semicircle bevel gear once can only be with one of driven wheel of differential phase
Engagement.
As further embodiment of the present invention：The both ends of the lifter plate are equipped with guide block, two support plates it is opposite one
Side offers guide groove, and guide groove is set along support plate length direction, and the end of guide block, which is slided, to be set in guide groove.
As further scheme of the invention：The upper end center of the top plate is equipped with motor, the lower end connection of motor
There is drive shaft, the lower end of drive shaft is set across top plate, and semicircle bevel gear is mounted on the lower end of drive shaft.
As further scheme of the invention：Rotation connection is held by connecting shaft between the drive shaft and top plate.
As further scheme of the invention：The both ends of the lifter plate symmetrically offer jack, and jack is located at two
The surface of bearing wheels is inserted with inserted link in jack, and the lower end of inserted link is equipped with pressing plate, top is additionally provided between pressing plate and lifter plate
Tight spring.
As further scheme of the invention：The spring that holds out against is arranged outside with inserted link, and inserted link is located at lifting
Screw thread is gone back on part above plate, and baffle is installed.
As further scheme of the invention：The lower face of the pressing plate is equipped with cushion.
As further scheme of the invention：The feed arrangement includes fixes sleeve, and fixes sleeve is fixedly mounted on
The middle part of lifter plate, fixes sleeve are set through lifter plate, are inserted with supporting rod inside the lower end of fixes sleeve, supporting rod it is upper
End is internal to offer threaded hole, and the inside of fixes sleeve is additionally provided with screw, and the lower end of screw is mounted in threaded hole, screw it is upper
End is rotatablely connected by the upper port of fixing bearing and fixes sleeve, and sliding slot is symmetrically offered on the side wall of the supporting rod, sliding
Slot is parallel with screw, and the madial wall lower end of fixes sleeve is symmetrically installed with sliding block, and sliding block, which slides, to be set in sliding slot.
As further scheme of the invention：The upper end of the fixes sleeve is equipped with cover board, is opened up in the middle part of cover board
There is through-hole, the top of screw is set, and the top of screw is equipped with release handle across through-hole.
As further scheme of the invention：The lower face of the pedestal is equipped with beam.
Compared with prior art, the beneficial effects of the invention are as follows：The configuration of the present invention is simple is reasonable, and use is efficient and convenient, leads to
Crossing the semicircle bevel gear of setting can realize that two driven wheel of differential of drive are rotated respectively, because of two driven wheel of differential
Be oppositely arranged, therefore when two driven wheel of differential are driven respectively by semicircle cone tooth, the steering of shaft be it is opposite,
When shaft rotates, the threaded portion in shaft will be moved with movable snail sleeve, because the hand of spiral of two threaded portions is phase
Anti-, therefore the movement of swivel nut can drive lifter plate to move up and down by connecting rod, when lifter plate declines, can lead to
Crossing feed mechanism drives pinch roller to push, and sheet metal is placed in two bearing wheels, and pinch roller can push sheet metal, carries out
Operation is finished off, the extreme lower position that feed arrangement can reach pinch roller is adjusted, and is adapted to different bending degree, and
And the design of semicircle bevel gear lasting in the case where not changing motor steering can carry out bending operation to sheet metal,
It greatly improves work efficiency.
Description of the drawings
Fig. 1 is the structure diagram of construction site sheet metal processing bender.
Fig. 2 is the structure diagram of feed arrangement in the sheet metal processing bender of construction site.
Fig. 3 is along A-A directions sectional view in Fig. 2.
In figure：1- pedestals, 2- support plates, 3- top plates, the first supporting racks of 4-, 5- bearing wheels, 6- shafts, 7- bearing blocks, 8-
Threaded portion, 9- swivel nuts, 10- hinged seats, 11- lifter plates, 12- connecting rods, 13- guide blocks, 14- guide grooves, 15- feed arrangements, 16-
Two supporting racks, 17- pinch rollers, 18- driven wheel of differential, 19- semicircles bevel gear, 20- motors, 21- drive shafts, 22- connections bearing,
23- jacks, 24- inserted links, 25- pressing plates, 26- hold out against spring, 27- baffles, 28- cushions, 29- fixes sleeves, 30- supporting rods, 31-
Threaded hole, 32- screws, 33- fixing bearings, 34- sliding blocks, 35- sliding slots, 36- cover boards, 37- through-holes, 38- release handles, 39- dampings
Pad.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1~3, in the embodiment of the present invention, a kind of construction site sheet metal processing bender, the bottom of including
Seat 1, the upper end left and right sides of the pedestal 1 are symmetrically installed with support plate 2, and support plate 2 and pedestal 1 are perpendicular, and two supports
Plate 2 is arranged in parallel, and the top of support plate 2 is equipped with top plate 3, is located on pedestal 1 between two support plates 2 along central symmetry
First supporting rack 4 is installed, the top of the first supporting rack 4 is equipped with bearing wheels 5, and upper end is also set between described two support plates 2
There is shaft 6, the both ends of shaft 6 are rotatably installed in by bearing block 7 on two opposite one sides of support plate 2, shaft 6 and top plate
3 is parallel, and 6 upper edge central symmetry of shaft is set there are two threaded portion 8, two 8 equal lengths of threaded portion but hand of spiral is on the contrary, spiral shell
It is mounted on swivel nut 9 in line portion 8, two swivel nuts 9 are equipped with also along the center symmetric setting of shaft 6 on the lower end outer wall of swivel nut 9
Hinged seat 10, is additionally provided with lifter plate 11 between two support plates 2 of the underface of the shaft 6, in the upper end edge of lifter plate 11
The heart is symmetrically installed there are two hinged seat 10, is passed through respectively between the hinged seat 10 on hinged seat 10 and lifter plate 11 on swivel nut 9
Connecting rod 12 is connected, and through feed arrangement 15 is equipped with, the lower end of feed arrangement 15 is equipped at the middle part of the lifter plate 11
Second supporting rack 16, the lower end of the second supporting rack 16 are equipped with pinch roller 17, pacify between two threaded portions 8 in the shaft 6
Dress there are two driven wheel of differential 18, two driven wheel of differential 18 along 6 center symmetric setting of shaft, two driven wheel of differential 18 it is upper
End is equipped with semicircle bevel gear 19, and semicircle bevel gear 19 is meshed with two driven wheel of differential 18, but semicircle bevel gear 19
It can only once be meshed with one of driven wheel of differential 18, can be realized by the semicircle bevel gear 19 of setting and driven respectively
Two driven wheel of differential 18 are rotated, because two driven wheel of differential 18 are oppositely arranged, therefore work as two from mantle tooth
When wheel 18 is driven respectively by semicircle cone tooth 19, the steering of shaft 6 is opposite, when shaft 6 rotates, the spiral shell in shaft 6
Line portion 8 will be moved with movable snail sleeve 9, because the hand of spiral of two threaded portions 8 is opposite, therefore the movement of swivel nut 9
Lifter plate 11 can be driven to move up and down by connecting rod 12, when lifter plate 12 declines, feed mechanism 15 can be passed through
Pinch roller 17 is driven to push, sheet metal is placed in two bearing wheels 5, pinch roller 17 can push sheet metal, be finished off
Operation, the extreme lower position that feed arrangement 15 can reach pinch roller 17 are adjusted, and are adapted to different bending degree.
The both ends of the lifter plate 11 are equipped with guide block 13, and two opposite one sides of support plate 2 offer guide groove 14, lead
Slot 14 is set along 2 length direction of support plate, and the end of guide block 13, which is slided, to be set in guide groove 14.
The upper end center of the top plate 3 is equipped with motor 20, and the lower end of motor 20 is connected with drive shaft 21, drive shaft 21
Lower end is set across top plate 3, and semicircle bevel gear 19 is mounted on the lower end of drive shaft 21.
It is rotatablely connected between the drive shaft 21 and top plate 3 by connecting bearing 22.
The both ends of the lifter plate 11 symmetrically offer jack 23, and jack 23 is located at the surface of two bearing wheels 5, jack
Inserted link 24 is inserted in 23, the lower end of inserted link 24 is equipped with pressing plate 25, is additionally provided between pressing plate 25 and lifter plate 11 and holds out against spring
26, it can be exerted a force to pressing plate 25 by holding out against spring 26, then the both ends of the sheet metal in bearing wheels 5 compressed,
It avoids before 17 contacting metal thin plate of pinch roller, sheet metal shifts.
The spring 26 that holds out against is arranged outside with inserted link 24, and inserted link 24 is located on the part of 11 top of lifter plate and goes back spiral shell
Line is equipped with baffle 27, and the extreme lower position of pressure and pressing plate 25 for holding out against spring 27 can be controlled by baffle 27, convenient
Good compression is carried out to the sheet metal of different model.
The lower face of the pressing plate 25 is equipped with cushion 28.
The feed arrangement 15 includes fixes sleeve 29, and fixes sleeve 29 is fixedly mounted on the middle part of lifter plate 11, fixed
Sleeve 29 is set through lifter plate 11, is inserted with supporting rod 30 inside the lower end of fixes sleeve 29, inside the upper end of supporting rod 30
Threaded hole 31 is offered, the inside of fixes sleeve 30 is additionally provided with screw 32, and the lower end of screw 32 is mounted in threaded hole 31, screw
32 upper end is rotatablely connected by the upper port of fixing bearing 33 and fixes sleeve 30, is symmetrically opened on the side wall of the supporting rod 30
Equipped with sliding slot 35, sliding slot 35 is parallel with screw 32, and the madial wall lower end of fixes sleeve 29 is symmetrically installed with sliding block 34, sliding block 34
It slides and is set in sliding slot 35, when screw 32 rotates, can drive supporting rod 30 by sliding slot 35 with sliding by threaded hole 31
The slip effect of block 34 is lifted, and supporting rod 30 will be realized relative to fixes sleeve 29 to be stretched, and fixes sleeve 29 is
Mounted on 11 middle part of lifter plate, therefore height adjusting can be carried out to pinch roller 17.
The upper end of the fixes sleeve 29 is equipped with cover board 36, and the middle part of cover board 36 offers through-hole 37, the top of screw 32
End is set, and the top of screw 32 is equipped with release handle 38 across through-hole 37.
The lower face of the pedestal 1 is equipped with beam 39.
It is obvious to a person skilled in the art that the present invention is not limited to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (10)
1. a kind of construction site sheet metal processing bender, including pedestal（1）, which is characterized in that the pedestal（1）'s
Support plate is symmetrically installed at left and right sides of upper end（2）, support plate（2）With pedestal（1）It is perpendicular, and two support plates（2）Mutually
It is arranged in parallel, support plate（2）Top top plate is installed（3）, pedestal（1）It is upper to be located at two support plates（2）Between along center pair
Title is equipped with the first supporting rack（4）, the first supporting rack（4）Top bearing wheels are installed（5）, described two support plates（2）It
Between upper end be additionally provided with shaft（6）, shaft（6）Both ends pass through bearing block（7）It is rotatably installed in two support plates（2）Opposite one
On side, shaft（6）With top plate（3）It is parallel, shaft（6）Upper edge central symmetry is set there are two threaded portion（8）, two threaded portions
（8）Equal length but hand of spiral are on the contrary, threaded portion（8）On be mounted on swivel nut（9）, two swivel nuts（9）Also along shaft（6）'s
Center symmetric setting, swivel nut（9）Lower end outer wall on hinged seat is installed（10）, the shaft（6）Underface two branch
Fagging（2）Between be additionally provided with lifter plate（11）, lifter plate（11）The installation of upper end edge central symmetry there are two hinged seat（10）, spiral shell
Set（9）On hinged seat（10）With lifter plate（11）On hinged seat（10）Between pass through connecting rod respectively（12）It is connected, institute
State lifter plate（11）Middle part through being equipped with feed arrangement（15）, feed arrangement（15）Lower end the second supporting rack is installed
（16）, the second supporting rack（16）Lower end pinch roller is installed（17）, the shaft（6）It is upper to be located at two threaded portions（8）Between pacify
There are two driven wheel of differential for dress（18）, two driven wheel of differential（18）Along shaft（6）Center symmetric setting, two driven wheel of differential
（18）Upper end be equipped with semicircle bevel gear（19）, semicircle bevel gear（19）With two driven wheel of differential（18）It is meshed, but
Semicircle bevel gear（19）It once can only be with one of driven wheel of differential（18）It is meshed.
2. construction site according to claim 1 sheet metal processing bender, which is characterized in that the lifter plate
（11）Both ends guide block is installed（13）, two support plates（2）Opposite one side offers guide groove（14）, guide groove（14）Along branch
Fagging（2）Length direction is set, guide block（13）End slide be set on guide groove（14）It is interior.
3. construction site according to claim 1 or 2 sheet metal processing bender, which is characterized in that the top
Plate（3）Upper end center motor is installed（20）, motor（20）Lower end be connected with drive shaft（21）, drive shaft（21）Lower end
Across top plate（3）Setting, semicircle bevel gear（19）Mounted on drive shaft（21）Lower end.
4. construction site according to claim 3 sheet metal processing bender, which is characterized in that the drive shaft
（21）With top plate（3）Between by connecting bearing（22）Rotation connection.
5. the construction site sheet metal processing bender according to claims 1 or 2 or 4, which is characterized in that described
Lifter plate（11）Both ends symmetrically offer jack（23）, jack（23）Positioned at two bearing wheels（5）Surface, jack（23）
Inside it is inserted with inserted link（24）, inserted link（24）Lower end pressing plate is installed（25）, pressing plate（25）With lifter plate（11）Between be additionally provided with
Hold out against spring（26）.
6. construction site according to claim 5 sheet metal processing bender, which is characterized in that described to hold out against bullet
Spring（26）It is arranged and inserted link（24）Outside, and inserted link（24）Positioned at lifter plate（11）Screw thread is gone back on the part of top, gear is installed
Plate（27）.
7. construction site according to claim 6 sheet metal processing bender, which is characterized in that the pressing plate
（25）Lower face be equipped with cushion（28）.
8. the construction site sheet metal processing bender according to claims 1 or 2 or 4 or 6 or 7, feature exist
In the feed arrangement（15）Including fixes sleeve（29）, fixes sleeve（29）It is fixedly mounted on lifter plate（11）Middle part, Gu
Determine sleeve（29）Through lifter plate（11）Setting, fixes sleeve（29）Lower end inside be inserted with supporting rod（30）, supporting rod
（30）Upper end inside offer threaded hole（31）, fixes sleeve（30）Inside be additionally provided with screw（32）, screw（32）Under
End is mounted on threaded hole（31）It is interior, screw（32）Upper end pass through fixing bearing（33）With fixes sleeve（30）Upper port rotation
Connection, the supporting rod（30）Side wall on symmetrically offer sliding slot（35）, sliding slot（35）With screw（32）It is parallel, fixing sleeve
Cylinder（29）Madial wall lower end be symmetrically installed with sliding block（34）, sliding block（34）It slides and is set on sliding slot（35）It is interior.
9. construction site according to claim 8 sheet metal processing bender, which is characterized in that the fixing sleeve
Cylinder（29）Upper end cover board is installed（36）, cover board（36）Middle part offer through-hole（37）, screw（32）Top pass through it is logical
Hole（37）Setting, and screw（32）Top release handle is installed（38）.
10. construction site according to claim 9 sheet metal processing bender, which is characterized in that the pedestal
（1）Lower face be equipped with beam（39）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711419271.0A CN108160766A (en) | 2017-12-25 | 2017-12-25 | A kind of construction site sheet metal processing bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711419271.0A CN108160766A (en) | 2017-12-25 | 2017-12-25 | A kind of construction site sheet metal processing bender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108160766A true CN108160766A (en) | 2018-06-15 |
Family
ID=62520519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711419271.0A Withdrawn CN108160766A (en) | 2017-12-25 | 2017-12-25 | A kind of construction site sheet metal processing bender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108160766A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580957A (en) * | 2018-07-02 | 2018-09-28 | 台聪 | A kind of free perforating device of tilting |
| CN111069360A (en) * | 2019-11-27 | 2020-04-28 | 宁夏天地经纬电力设备工程有限公司 | Bending device for processing electrical accessories |
| CN111804777A (en) * | 2020-07-17 | 2020-10-23 | 叶杏 | Profile bending forming method |
| CN112168009A (en) * | 2020-11-06 | 2021-01-05 | 健仕(宁波)智能电器制造有限公司 | Rectangular drawer type smokeless air frying pan |
| CN113263081A (en) * | 2021-07-15 | 2021-08-17 | 大连理工江苏研究院有限公司 | Metal processing equipment for adjusting bending angle and bending method |
| CN117225951A (en) * | 2023-11-13 | 2023-12-15 | 吉林省新诺达交通设备有限公司 | Metal tube bending machine |
-
2017
- 2017-12-25 CN CN201711419271.0A patent/CN108160766A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580957A (en) * | 2018-07-02 | 2018-09-28 | 台聪 | A kind of free perforating device of tilting |
| CN108580957B (en) * | 2018-07-02 | 2020-05-01 | 安徽英杰精工机械有限公司 | Inclinable free punching device |
| CN111069360A (en) * | 2019-11-27 | 2020-04-28 | 宁夏天地经纬电力设备工程有限公司 | Bending device for processing electrical accessories |
| CN111804777A (en) * | 2020-07-17 | 2020-10-23 | 叶杏 | Profile bending forming method |
| CN112168009A (en) * | 2020-11-06 | 2021-01-05 | 健仕(宁波)智能电器制造有限公司 | Rectangular drawer type smokeless air frying pan |
| CN113263081A (en) * | 2021-07-15 | 2021-08-17 | 大连理工江苏研究院有限公司 | Metal processing equipment for adjusting bending angle and bending method |
| CN117225951A (en) * | 2023-11-13 | 2023-12-15 | 吉林省新诺达交通设备有限公司 | Metal tube bending machine |
| CN117225951B (en) * | 2023-11-13 | 2024-01-12 | 吉林省新诺达交通设备有限公司 | Metal tube bending machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180615 |
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| WW01 | Invention patent application withdrawn after publication |