CN109676060A - A kind of novel small-sized building iron apparatus for bending - Google Patents
A kind of novel small-sized building iron apparatus for bending Download PDFInfo
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- CN109676060A CN109676060A CN201811493890.9A CN201811493890A CN109676060A CN 109676060 A CN109676060 A CN 109676060A CN 201811493890 A CN201811493890 A CN 201811493890A CN 109676060 A CN109676060 A CN 109676060A
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- bending
- fixedly installed
- workbench
- fixedly connected
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- 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
- B21F1/004—Bending wire other than coiling; Straightening wire by means of press-type tooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a kind of novel small-sized building iron apparatus for bending, including fundamental mechanism, preliminary fixed mechanism, middle part stabilizing mechanism and bending mechanism, preliminary fixed mechanism, middle part stabilizing mechanism and bending mechanism are provided on the fundamental mechanism, the fundamental mechanism includes workbench, the bottom of the workbench is fixedly installed with cushion block, bending slot is offered at the top of the workbench, the front of the workbench is fixedly installed with motor fixing plate, the inside of the workbench is fixedly installed with mounting plate, and the preliminary fixed mechanism includes side plate and sliding rail.The configuration of the present invention is simple is reasonable, device volume is small, facilitate and installed and used, is worked with regard to achievable bending reinforcement using Shi Yiming worker, saved manpower, simultaneously using mechanical wrap direction, it shortens to the time required to bending reinforcement, can be improved the bending quantity of reinforcing bar, bending is high-efficient, the labor intensity for reducing worker is conducive to the progress of construction work.
Description
Technical field
The present invention relates to Architectural Equipment technical field, specially a kind of novel small-sized building iron apparatus for bending.
Background technique
In construction, reinforcing bar is indispensable a part, and the reinforcing bar usually transported to construction site is all straight type
, due in building construction process, need using to elbow reinforcing bar, therefore can be arranged on building sites reinforcing bar folding
Bending apparatus, it is convenient to reinforcing bar progress bending work with this.
The apparatus for bending that existing building building site uses is mainly two kinds: it is a kind of to use Mechanical Driven mode, it can be to reinforcing bar
Quick bending is carried out, bending effect is good, but volume is larger, it has not been convenient to be installed and be used, need several workers when in use
Common cooperation；One is manual bending machine, a worker works with regard to the achievable bending to reinforcing bar, but bending inefficiency, and
And bending effect is undesirable.Therefore a kind of reinforcing bar folding apparatus for bending in small-sized construction site is proposed.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, it the present invention provides a kind of novel small-sized building iron apparatus for bending, solves existing
Have steel bar bending apparatus that construction site uses or volume larger, it has not been convenient to carry out using or bending low efficiency, bending effect
The undesirable problem of fruit.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of novel small-sized building iron apparatus for bending, packet
Fundamental mechanism, preliminary fixed mechanism, middle part stabilizing mechanism and bending mechanism are included, preliminary fixed machine is provided on the fundamental mechanism
Structure, middle part stabilizing mechanism and bending mechanism.
The fundamental mechanism includes workbench, and the bottom of the workbench is fixedly installed with cushion block, the top of the workbench
Portion offers bending slot, and the front of the workbench is fixedly installed with motor fixing plate, and the inside of the workbench is fixedly mounted
There is mounting plate.
The preliminary fixed mechanism includes side plate and sliding rail, and the quantity of the side plate and sliding rail is two, described in two
The opposite side of side plate is fixedly installed with hydraulic push rod, slidably connects sliding seat on two sliding rails, each described
Sliding rail corresponds to two sliding seats, and four the sliding seat two are one group, and the opposite side of sliding seat described in every group is fixed
Transverse slat is installed, two opposite sides of the transverse slat are fixedly installed with sandwich plate, are fixedly installed on the sandwich plate
Fixed pole is fixedly installed with fast pulley in the fixed link.
The middle part stabilizing mechanism includes operation box and driving motor, and the operation box is internally provided with screw rod and cunning
Bar is threaded with spiral shell block on the screw rod, sliding block, the spiral shell block side opposite with sliding block is slidably connected on the slide bar
Between be fixedly installed with gag lever post, the gag lever post, which is bolted, is equipped with L-type mounting base, the top of the L-type mounting base
Portion is fixedly installed with clamp column, and belt wheel, two belt wheels are fixedly installed on the output shaft and screw rod of the driving motor
It is sequentially connected by belt.
The bending mechanism includes driving motor and support shaft, and the output shaft of the driving motor is fixedly installed with main tooth
It takes turns, is fixedly installed in the support shaft from gear and turntable, is bolted at the top of the turntable and pedestal is installed, institute
It states and is fixedly installed with pillar at the top of pedestal, bending cylinder is fixedly installed on the pillar.
Advanced optimize the technical program, the bottom of the side plate and sliding rail be fixedly connected at the top of workbench, two
The output end of a hydraulic push rod is fixedly connected with corresponding transverse slat.
The technical program is advanced optimized, the quantity of the sandwich plate is four, and four the sandwich plate two are one group,
The quantity of the fixed link is six, and six the fixed link three are one group, and the both ends of fixed link described in every group are and relatively
The one group of opposite side of sandwich plate answered is fixedly connected.
The technical program is advanced optimized, is fixedly connected at the top of the bottom of the operation box and workbench, the transmission
It is fixedly connected at the top of the bottom of motor and motor fixing plate.
The technical program is advanced optimized, one end of the screw rod is fixedly connected by bearing with the inner wall of operation box, institute
The other end of screw rod is stated to be fixedly connected through operation box with one of belt wheel, the both ends of the slide bar with the inner wall of operation box
It is fixedly connected.
The technical program is advanced optimized, the screw rod includes two sections of opposite screw threads, and the screw rod and slide bar are right respectively
Answer two spiral shell blocks and two sliding blocks.
The technical program is advanced optimized, is fixedly connected at the top of the bottom of the driving motor and mounting plate, the branch
One end of support axis is fixedly connected by bearing with the bottom of mounting plate, the fixed company of the other end of the support shaft and the bottom of turntable
It connects.
The technical program is advanced optimized, the master gear is meshed with from gear.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of novel small-sized building iron apparatus for bending, have following beneficial
Effect:
1, the novel small-sized building iron apparatus for bending, simple and reasonable, device volume is small, facilitates and is installed and made
With being worked with regard to achievable bending reinforcement using Shi Yiming worker, saved manpower, while using mechanical wrap direction, shortened
To the time required to bending reinforcement, the bending quantity of reinforcing bar can be improved, bending is high-efficient, the labor intensity of worker is reduced,
Be conducive to the progress of construction work.
2, the novel small-sized building iron apparatus for bending is cooperated by preliminary fixed mechanism and middle part stabilizing mechanism, can
The reinforcing bar of bending is effectively limited and fixed, is conducive to carry out bending work to reinforcing bar, improves the bending effect of reinforcing bar
Fruit.
Detailed description of the invention
Fig. 1 is structure of the invention front view；
Fig. 2 is the portion A structure enlargement diagram in Fig. 1 of the present invention；
Fig. 3 is structure of the invention rearview；
Fig. 4 is structure of the invention side view；
Fig. 5 is the portion B structure enlargement diagram in Fig. 4 of the present invention.
In figure: 1, fundamental mechanism；11, workbench；12, cushion block；13, bending slot；14, motor fixing plate；15, mounting plate；
2, preliminary fixed mechanism；21, side plate；22, sliding rail；23, hydraulic push rod；24, sliding seat；25, transverse slat；26, sandwich plate；27, solid
Fixed pole；28, fast pulley；3, middle part stabilizing mechanism；31, operation box；32, driving motor；33, screw rod；34, slide bar；35, spiral shell block；
36, sliding block；37, gag lever post；38, L-type mounting base；39, clamp column；3010, belt wheel；3011, belt；4, bending mechanism；41, it drives
Dynamic motor；42, support shaft；43, master gear；44, from gear；45, turntable；46, pedestal；47, pillar；48, bending cylinder.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, the present invention provides a kind of technical solution: a kind of novel small-sized building iron apparatus for bending, including
Fundamental mechanism 1, preliminary fixed mechanism 2, middle part stabilizing mechanism 3 and bending mechanism 4 are provided with preliminary fixed machine on fundamental mechanism 1
Structure 2, middle part stabilizing mechanism 3 and bending mechanism 4.
Fundamental mechanism 1 includes workbench 11, and the bottom of workbench 11 is fixedly installed with cushion block 12, and the top of workbench 11 is opened
Equipped with bending slot 13, the front of workbench 11 is fixedly installed with motor fixing plate 14, and the inside of workbench 11 is fixedly installed with peace
Loading board 15.
Preliminary fixed mechanism 2 includes side plate 21 and sliding rail 22, and the quantity of side plate 21 and sliding rail 22 is two, two side plates
21 opposite sides are fixedly installed with hydraulic push rod 23, and sliding seat 24, each sliding rail are slidably connected on two sliding rails 22
22 correspond to two sliding seats 24, and four sliding seat 24 two are one group, and every group of opposite side of sliding seat 24 is fixedly mounted
There is transverse slat 25, the opposite side of two transverse slats 25 is fixedly installed with sandwich plate 26, is fixedly installed with fixed link on sandwich plate 26
27, fast pulley 28 is fixedly installed in fixed link 27.
Middle part stabilizing mechanism 3 includes operation box 31 and driving motor 32, and operation box 31 is internally provided with screw rod 33 and cunning
Bar 34 is threaded with spiral shell block 35 on screw rod 33, slidably connects sliding block 36 on slide bar 34, spiral shell block 35 it is opposite with sliding block 36 one
Gag lever post 37 is fixedly installed between side, gag lever post 37, which is bolted, is equipped with L-type mounting base 38, L-type mounting base 38
Top is fixedly installed with clamp column 39, is fixedly installed with belt wheel 3010 on the output shaft and screw rod 33 of driving motor 32, and two
Belt wheel 3010 is sequentially connected by belt 3011, is cooperated by preliminary fixed mechanism 2 and middle part stabilizing mechanism 3, can be to bending
Reinforcing bar effectively limited and fixed, be conducive to reinforcing bar carry out bending work, improve the bending effect of reinforcing bar.
Bending mechanism 4 includes driving motor 41 and support shaft 42, and the output shaft of driving motor 41 is fixedly installed with master gear
43, it is fixedly installed with from gear 44 and turntable 45 in support shaft 42, the top of turntable 45, which is bolted, is equipped with pedestal 46,
The top of pedestal 46 is fixedly installed with pillar 47, and bending cylinder 48, simple and reasonable, device volume are fixedly installed on pillar 47
It is small, facilitate and installed and used, is worked with regard to achievable bending reinforcement using Shi Yiming worker, saved manpower, adopted simultaneously
It with mechanical wrap direction, shortens to the time required to bending reinforcement, can be improved the bending quantity of reinforcing bar, bending is high-efficient, drop
The low labor intensity of worker is conducive to the progress of construction work.
Specifically, the bottom of side plate 21 and sliding rail 22 is fixedly connected with the top of workbench 11, two hydraulic push rods 23
Output end be fixedly connected with corresponding transverse slat 25, transverse slat 25 can be pushed to be moved by hydraulic push rod 23, thus
Complete the clamping work to reinforcing bar.
Specifically, the quantity of sandwich plate 26 is four, four sandwich plate 26 two are one group, and the quantity of fixed link 27 is six
It is a, six fixed link 27 3 be one group, the both ends of every group of fixed link 27 it is opposite with corresponding one group of sandwich plate 26 one
Side is fixedly connected, and improves the clamping effect to reinforcing bar.
Specifically, the bottom of operation box 31 is fixedly connected with the top of workbench 11, the bottom of driving motor 32 and motor
The top of fixed plate 14 is fixedly connected, and ensure that the reasonability of apparatus structure setting.
Specifically, one end of screw rod 33 is fixedly connected by bearing with the inner wall of operation box 31, the other end of screw rod 33 is passed through
Dress operation frame 31 is fixedly connected with one of belt wheel 3010, and the both ends of slide bar 34 are fixedly connected with the inner wall of operation box 31,
Ensure that driving motor 32 is able to drive 33 normal rotation of screw rod.
Specifically, screw rod 33 includes two sections of opposite screw threads, screw rod 33 and slide bar 34 respectively correspond two spiral shell blocks 35 and two
A sliding block 36, so as to complete the reinforcement to reinforcing bar.
Specifically, the bottom of driving motor 41 is fixedly connected with the top of mounting plate 15, one end of support shaft 42 passes through axis
It holds and is fixedly connected with the bottom of mounting plate 15, the other end of support shaft 42 is fixedly connected with the bottom of turntable 45, ensure that support
The stability of 42 structure of axis and being capable of normal rotation.
Specifically, master gear 43 is meshed with from gear 44, it is convenient to drive support shaft 42 to rotate by driving motor 41.
When in use, reinforcing bar is put into the upper of operation box 31 first, a supporting role is played to reinforcing bar, is then determined
The length for needing bending reinforcement carries out mobile adjusting to reinforcing bar, after the length for determining bending, while starting two hydraulic push rods
23, two hydraulic push rods 23 push two transverse slats 25 to be moved, and two transverse slats 25 are enterprising in sliding rail 22 by sliding seat 24
Row sliding, and then the fast pulley 28 of the opposite side of two transverse slats 25 carries out reinforcing bar tentatively fixed, there are six fast pulleys 28, often
Triplets, every two, which is relatively fixed to take turns, forms a gap between 28, reinforcing bar is fixed in this gap, in fluid,matching
The thrust of push rod 23 is pressed, to ensure that the clamping effect of reinforcing bar, then starts driving motor 32, driving motor 32 utilizes belt wheel
3010 and belt 3011 cooperation, be able to drive screw rod 33 and rotated, it is opposite due to being provided with two sections of screw threads on screw rod 33
Screw thread move jointly so that two spiral shell blocks 35 are capable of toward the side close to reinforcing bar, thus drive two clamp columns 39 to reinforcing bar into
Row middle part reinforce, guarantee in this way to reinforcing bar carry out bending work when, apart from the closer reinforcing bar of dogleg section will not bending together,
The stability during bending reinforcement is strengthened simultaneously, after completing to the fixation of reinforcing bar, starts driving motor 41, driving motor 41
Master gear 43 is driven to rotate, master gear 43 is meshed with from gear 44, so that support shaft 42 starts that turntable 45 is driven to rotate, thus
Using the cooperation of the pillar 47 and bending cylinder 48 that are fixedly mounted with turntable 45, completes the bending to reinforcing bar and work.
In conclusion the novel small-sized building iron apparatus for bending, simple and reasonable, device volume is small, facilitates progress
Installation and use work to bending reinforcement with regard to achievable using Shi Yiming worker, have saved manpower, while using mechanical bending side
Formula shortens to the time required to bending reinforcement, can be improved the bending quantity of reinforcing bar, bending is high-efficient, reduces the labor of worker
Fatigue resistance is conducive to the progress of construction work.
It should be noted that, in this document, such as the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of novel small-sized building iron apparatus for bending, including fundamental mechanism (1), preliminary fixed mechanism (2), the stable machine in middle part
Structure (3) and bending mechanism (4), it is characterised in that: preliminary fixed mechanism (2) is provided on the fundamental mechanism (1), middle part is stablized
Mechanism (3) and bending mechanism (4)；
The fundamental mechanism (1) includes workbench (11), and the bottom of the workbench (11) is fixedly installed with cushion block (12), described
It is offered at the top of workbench (11) bending slot (13), the front of the workbench (11) is fixedly installed with motor fixing plate
(14), the inside of the workbench (11) is fixedly installed with mounting plate (15)；
The preliminary fixed mechanism (2) includes side plate (21) and sliding rail (22), and the quantity of the side plate (21) and sliding rail (22) is equal
It is two, two opposite sides of the side plate (21) are fixedly installed with hydraulic push rod (23), on two sliding rails (22)
It slidably connects sliding seat (24), each sliding rail (22) corresponds to two sliding seats (24), four sliding seats
(24) two are one group, and the opposite side of sliding seat described in every group (24) is fixedly installed with transverse slat (25), two transverse slats
(25) opposite side is fixedly installed with sandwich plate (26), is fixedly installed with fixed link (27), institute on the sandwich plate (26)
It states and is fixedly installed with fast pulley (28) on fixed link (27)；
The middle part stabilizing mechanism (3) includes operation box (31) and driving motor (32), the inside setting of the operation box (31)
There are screw rod (33) and slide bar (34), be threaded with spiral shell block (35) on the screw rod (33), is slidably connected on the slide bar (34)
Have sliding block (36), is fixedly installed with gag lever post (37), the limit between the spiral shell block (35) and the opposite side of sliding block (36)
Bar (37), which is bolted, to be equipped with L-type mounting base (38), is fixedly installed with clamp column at the top of the L-type mounting base (38)
(39), it is fixedly installed with belt wheel (3010) on the output shaft and screw rod (33) of the driving motor (32), two belt wheels
(3010) it is sequentially connected by belt (3011)；
The bending mechanism (4) includes driving motor (41) and support shaft (42), and the output shaft of the driving motor (41) is fixed
It is equipped with master gear (43), is fixedly installed on the support shaft (42) from gear (44) and turntable (45), the turntable (45)
Top be bolted and be equipped with pedestal (46), be fixedly installed with pillar (47), the branch at the top of the pedestal (46)
Bending cylinder (48) are fixedly installed on column (47).
2. a kind of novel small-sized building iron apparatus for bending according to claim 1, it is characterised in that: the side plate (21)
Be fixedly connected at the top of workbench (11) with the bottom of sliding rail (22), the output end of two hydraulic push rods (23) with
Corresponding transverse slat (25) is fixedly connected.
3. a kind of novel small-sized building iron apparatus for bending according to claim 1, it is characterised in that: the sandwich plate
(26) quantity is four, and four the sandwich plate (26) two are one group, and the quantity of the fixed link (27) is six, six
The fixed link (27) three be one group, the both ends of fixed link described in every group (27) with corresponding one group of sandwich plate (26) phase
Pair side be fixedly connected.
4. a kind of novel small-sized building iron apparatus for bending according to claim 1, it is characterised in that: the operation box
(31) it is fixedly connected at the top of bottom and workbench (11), bottom and motor fixing plate (14) of the driving motor (32)
Top is fixedly connected.
5. a kind of novel small-sized building iron apparatus for bending according to claim 1, it is characterised in that: the screw rod (33)
One end be fixedly connected by bearing with the inner wall of operation box (31), the other end of the screw rod (33) through operation box (31) with
One of belt wheel (3010) is fixedly connected, and the both ends of the slide bar (34) are fixedly connected with the inner wall of operation box (31).
6. a kind of novel small-sized building iron apparatus for bending according to claim 1, it is characterised in that: the screw rod (33)
Including two sections of opposite screw threads, the screw rod (33) and slide bar (34) respectively correspond two spiral shell blocks (35) and two sliding blocks (36).
7. a kind of novel small-sized building iron apparatus for bending according to claim 1, it is characterised in that: the driving motor
(41) it is fixedly connected at the top of bottom and mounting plate (15), one end of the support shaft (42) passes through bearing and mounting plate (15)
Bottom be fixedly connected, the other end of the support shaft (42) is fixedly connected with the bottom of turntable (45).
8. a kind of novel small-sized building iron apparatus for bending according to claim 1, it is characterised in that: the master gear
(43) it is meshed with from gear (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811493890.9A CN109676060A (en) | 2018-12-07 | 2018-12-07 | A kind of novel small-sized building iron apparatus for bending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811493890.9A CN109676060A (en) | 2018-12-07 | 2018-12-07 | A kind of novel small-sized building iron apparatus for bending |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109676060A true CN109676060A (en) | 2019-04-26 |
Family
ID=66186555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811493890.9A Pending CN109676060A (en) | 2018-12-07 | 2018-12-07 | A kind of novel small-sized building iron apparatus for bending |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109676060A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2113118U (en) * | 1992-02-20 | 1992-08-19 | 颜进兴 | Angle folding controller for reinforcing steel bender |
| CN201436149U (en) * | 2009-05-11 | 2010-04-07 | 江阴中南重工股份有限公司 | Pipe clamping device |
| CN204182830U (en) * | 2014-10-12 | 2015-03-04 | 汤绍明 | Architectural engineering screw rod locking type adjustable steel bar bender |
| JP2015116594A (en) * | 2013-12-18 | 2015-06-25 | 東陽建設工機株式会社 | Reinforcing-bar bender and reinforcing-bar spacer |
| CN204504053U (en) * | 2014-11-18 | 2015-07-29 | 中国建筑第四工程局有限公司 | Angle-bender |
| CN105817558A (en) * | 2016-06-02 | 2016-08-03 | 常州市金海珑机械制造有限公司 | Reinforcing steel bar bending equipment |
| CN205464056U (en) * | 2016-01-11 | 2016-08-17 | 重庆石船建设开发有限公司 | Get and put more convenient angle bender of reinforcing bar |
| CN206716906U (en) * | 2017-05-27 | 2017-12-08 | 河南新友工程机械有限公司 | A kind of construction angle bender |
| CN108435967A (en) * | 2018-04-29 | 2018-08-24 | 郭凤琴 | A kind of construction steel bar bending apparatus |
-
2018
- 2018-12-07 CN CN201811493890.9A patent/CN109676060A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2113118U (en) * | 1992-02-20 | 1992-08-19 | 颜进兴 | Angle folding controller for reinforcing steel bender |
| CN201436149U (en) * | 2009-05-11 | 2010-04-07 | 江阴中南重工股份有限公司 | Pipe clamping device |
| JP2015116594A (en) * | 2013-12-18 | 2015-06-25 | 東陽建設工機株式会社 | Reinforcing-bar bender and reinforcing-bar spacer |
| CN204182830U (en) * | 2014-10-12 | 2015-03-04 | 汤绍明 | Architectural engineering screw rod locking type adjustable steel bar bender |
| CN204504053U (en) * | 2014-11-18 | 2015-07-29 | 中国建筑第四工程局有限公司 | Angle-bender |
| CN205464056U (en) * | 2016-01-11 | 2016-08-17 | 重庆石船建设开发有限公司 | Get and put more convenient angle bender of reinforcing bar |
| CN105817558A (en) * | 2016-06-02 | 2016-08-03 | 常州市金海珑机械制造有限公司 | Reinforcing steel bar bending equipment |
| CN206716906U (en) * | 2017-05-27 | 2017-12-08 | 河南新友工程机械有限公司 | A kind of construction angle bender |
| CN108435967A (en) * | 2018-04-29 | 2018-08-24 | 郭凤琴 | A kind of construction steel bar bending apparatus |
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Application publication date: 20190426 |
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| RJ01 | Rejection of invention patent application after publication |