CN112547978A - Steel bar bending machine for building engineering - Google Patents
Steel bar bending machine for building engineering Download PDFInfo
- Publication number
- CN112547978A CN112547978A CN202011598357.6A CN202011598357A CN112547978A CN 112547978 A CN112547978 A CN 112547978A CN 202011598357 A CN202011598357 A CN 202011598357A CN 112547978 A CN112547978 A CN 112547978A
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- CN
- China
- Prior art keywords
- sliding
- assembly
- clamping
- bending
- rod
- 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.)
- Pending
Links
- 238000005452 bending Methods 0.000 title claims abstract description 52
- 229910000831 Steel Inorganic materials 0.000 title abstract description 28
- 239000010959 steel Substances 0.000 title abstract description 28
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/123—Wound springs
- F16F15/12306—Radially mounted springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/123—Wound springs
- F16F15/1232—Wound springs characterised by the spring mounting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
A reinforcing bar bending machine for building engineering comprises a machine frame, a clamping assembly, a bending assembly, a sliding rail and a buffer assembly; the bending assembly and the slide rail are arranged on the rack; the clamping assembly is arranged on the sliding rail in a sliding manner; the buffering component is arranged on the bending component. According to the invention, the clamping assembly is arranged, and the position of the clamping block on the sliding rod is adjusted by using the linear driving part, so that the clamping position can be conveniently changed according to the diameters of different reinforcing steel bars, and the reinforcing steel bars correspond to the rotating shaft and the rotating table; the steel bar is clamped by utilizing a plurality of groups of clamping blocks and a first air cylinder, and a first elastic piece is arranged, so that the clamping blocks are prevented from being separated and loosened far, and the steel bar processing efficiency is prevented from being reduced; the steel bar is fixed by the fixing piece and the second air cylinder through the bending assembly; through setting up the buffering subassembly, set up buffer board and elastomeric element in the axis of rotation, protect the axis of rotation, avoid bending in-process axis of rotation and receive too big pressure, and produce and warp, lead to the unable normal work of bender.
Description
Technical Field
The invention relates to the technical field of bending machines, in particular to a reinforcing steel bar bending machine for building engineering.
Background
The building engineering refers to an engineering entity formed by the construction of various building constructions and their auxiliary facilities and the installation of lines, pipelines and equipment matched with them. The house building is characterized by comprising a top cover, a beam column, a wall, a foundation and a project which can form an internal space and meet the requirements of people on production, living, study and public activities. Steel reinforcement is commonly used in construction; the steel bar is steel for reinforced concrete and prestressed reinforced concrete, the cross section of the steel bar is circular, sometimes the steel bar is square with round corners, the external shape of the steel bar is divided into smooth steel bar and deformed steel bar, the delivery state is straight bar and wire rod, and before the steel bar is used, a steel bar bending machine is sometimes needed to shape and bend the steel bar.
The existing reinforcing steel bar bending machine for the building engineering has a complex structure, a slow top-hand speed and a complex loading and unloading process, is suitable for reinforcing steel bar manufacturers and is not suitable for being used on a real site of the building engineering; and the clamping stability and the clamping flexibility ratio of the existing steel bar bending machine in the aspect of steel bar clamping are poor, and the steel bar is easy to distort or break in the bending process, so that the whole production and construction efficiency is reduced.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides a reinforcing steel bar bending machine for building engineering, which is characterized in that a clamping assembly is arranged, and the position of a clamping block on a sliding rod is adjusted by utilizing a linear driving part, so that the clamping position can be conveniently changed according to the diameters of different reinforcing steel bars, and the reinforcing steel bars correspond to a rotating shaft and a rotating table; the steel bar is clamped by utilizing a plurality of groups of clamping blocks and a first air cylinder, and a first elastic piece is arranged, so that the clamping blocks are prevented from being separated and loosened far, and the steel bar processing efficiency is prevented from being reduced; the bending assembly is arranged, the fixing piece and the second air cylinder are used for fixing the reinforcing steel bars, the rotating shaft and the rotating platform are driven to rotate through the second driving piece, so that the reinforcing steel bars are bent, and the bending angle of the reinforcing steel bars can be conveniently adjusted through the rotation angle control of the rotating platform; through setting up the buffering subassembly, set up buffer board and elastomeric element in the axis of rotation, protect the axis of rotation, avoid bending in-process axis of rotation and receive too big pressure, and produce and warp, lead to the unable normal work of bender.
(II) technical scheme
The invention provides a reinforcing bar bending machine for building engineering, which comprises a frame, a clamping assembly, a bending assembly, a sliding rail and a buffer assembly, wherein the clamping assembly is arranged on the frame; the bending assembly and the slide rail are arranged on the rack; the clamping assembly is arranged on the sliding rail in a sliding manner; the buffering component is arranged on the bending component.
Preferably, the clamping assembly comprises a mounting seat, a sliding rod, a clamping block, a first elastic piece, a first air cylinder and a linear driving part; the mounting seat is arranged on the sliding rail in a sliding manner; the sliding rod is arranged at one end of the mounting seat; the first cylinder is arranged at the other end of the mounting seat; the sliding rod is arranged on the mounting seat; the clamping blocks are arranged in a plurality of groups, and the clamping blocks are arranged on the sliding rod in a sliding manner; the first elastic piece is arranged on the sliding rod in a sliding mode and located between the clamping blocks, and two ends of the first elastic piece are connected to the clamping blocks respectively; the clamping block which is driven by the linear driving part and is far away from the first air cylinder is arranged on the sliding rod in a sliding mode.
Preferably, the bending assembly comprises a second driving piece, a rotating shaft, a fixed block, a second air cylinder and a rotating table; the rotating shaft driven by the second driving piece is rotationally arranged on the rack; the rotating platform is arranged on the rotating shaft; the fixed block is arranged on the rotating table; the second cylinder sets up on the revolving stage, and the piston end is towards the fixed block.
Preferably, the buffer assembly includes a buffer plate and an elastic member; the elastic component is arranged on the rotating shaft; the buffer plate is arranged on the elastic component and is connected with the rotating table in a sliding mode.
Preferably, the linear driving component comprises a first driving piece, a screw rod and a sliding block; the screw rod driven by the first driving piece is rotationally arranged on the mounting seat; the sliding block is in threaded connection with the screw rod; a group of clamping blocks close to the mounting seat are arranged on the sliding block.
Preferably, the lower end of the clamping component is provided with a sliding block; the sliding block is arranged on the sliding rail in a sliding manner; the sliding block is provided with a self-locking assembly.
Preferably, the elastic member includes a connecting rod, a second elastic member and a guide sleeve rod; the connecting rod is sleeved on the guide sleeve rod in a sliding manner; one end of the second elastic part is connected to the connecting rod, and the other end of the second elastic part is connected to the guide sleeve rod.
Preferably, the connecting rod is provided with a clamping block; the fixture block is clamped with the guide sleeve rod.
Preferably, the rotating table and the mounting seat are located on the same plane.
Compared with the prior art, the technical scheme of the invention has the following beneficial technical effects:
the clamping assembly is arranged, and the position of the clamping block on the sliding rod is adjusted by using the linear driving part, so that the clamping position can be conveniently changed according to the diameters of different reinforcing steel bars, and the reinforcing steel bars correspond to the rotating shaft and the rotating table; the steel bar is clamped by utilizing a plurality of groups of clamping blocks and a first air cylinder, and a first elastic piece is arranged, so that the clamping blocks are prevented from being separated and loosened far, and the steel bar processing efficiency is prevented from being reduced;
secondly, the reinforcing steel bars are fixed by the fixing piece and the second air cylinder through the arrangement of the bending assembly, the rotating shaft and the rotating platform are driven to rotate through the second driving piece, so that the bending of the reinforcing steel bars is realized, and the bending angle of the reinforcing steel bars is convenient to adjust through the rotation angle control of the rotating platform;
and thirdly, the buffer assembly is arranged, the buffer plate and the elastic part are arranged on the rotating shaft, the rotating shaft is protected, excessive pressure is prevented from being received by the rotating shaft in the bending process, deformation is generated, and the bending machine cannot work normally.
Drawings
Fig. 1 is a top view of a bending machine for reinforcing steel bars for building engineering according to the present invention.
Fig. 2 is a left side sectional view of the reinforcing bar bending machine for building engineering provided by the invention.
Fig. 3 is a schematic structural diagram of a clamping assembly in a reinforcing bar bending machine for building engineering, which is provided by the invention.
Fig. 4 is a partially enlarged view of a portion a in fig. 1.
Fig. 5 is a partially enlarged view of fig. 1 at B.
Fig. 6 is a partially enlarged view of C in fig. 5.
Reference numerals: 1. a frame; 2. a clamping assembly; 3. bending the assembly; 4. a slide rail; 5. a buffer assembly; 6. a mounting seat; 7. a slide bar; 8. a clamping block; 9. a first elastic member; 10. a first cylinder; 11. a linear drive member; 12. a first driving member; 13. a screw rod; 14. a slider; 15. a second driving member; 16. a rotating shaft; 17. a fixed block; 18. a second cylinder; 20. a rotating table; 22. a slider; 23. a buffer plate; 24. an elastic member; 25. a connecting rod; 26. a guide loop bar; 27. a second elastic member; 28. and (7) clamping blocks.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1 to 6, the reinforcing bar bending machine for building engineering provided by the invention comprises a frame 1, a clamping assembly 2, a bending assembly 3, a sliding rail 4 and a buffer assembly 5; the bending component 3 and the slide rail 4 are arranged on the frame 1; the clamping component 2 is arranged on the sliding rail 4 in a sliding manner; cushioning assembly 5 is disposed on bending assembly 3.
In an alternative embodiment, the clamping assembly 2 comprises a mounting block 6, a slide bar 7, a clamping block 8, a first elastic member 9, a first cylinder 10 and a linear driving member 11; the mounting seat 6 is arranged on the slide rail 4 in a sliding manner; the sliding rod 7 is arranged at one end of the mounting seat 6; the first air cylinder 10 is arranged at the other end of the mounting seat 6; the sliding rod 7 is arranged on the mounting seat 6; a plurality of groups of clamping blocks 8 are arranged, and the plurality of groups of clamping blocks 8 are arranged on the sliding rod 7 in a sliding manner; the first elastic piece 9 is arranged on the sliding rod 7 in a sliding mode and located between the clamping blocks 8, and two ends of the first elastic piece are connected to the clamping blocks 8 respectively; a clamping block 8, which is driven by a linear drive 11, is arranged slidingly on the slide rod 7, remote from the first cylinder 10.
In an alternative embodiment, the bending assembly 3 comprises a second driving member 15, a rotating shaft 16, a fixed block 17, a second air cylinder 18 and a rotating table 20; a rotating shaft 16 driven by a second driving piece 15 is rotatably arranged on the frame 1; the rotating table 20 is provided on the rotating shaft 16; the fixed block 17 is arranged on the rotating table 20; the second cylinder 18 is arranged on the rotary table 20 with the piston end facing the fixed block 17.
In an alternative embodiment, the damping assembly 5 comprises a damping plate 23 and an elastic member 24; the elastic member 24 is provided on the rotating shaft 16; the buffer plate 23 is arranged on the elastic component 24 and is connected with the rotating table 20 in a sliding way; the buffer plate 23 is arranged, and when the bending machine works, the elastic component 24 provides pressure for the buffer plate 23, so that the pressure applied to the rotating shaft 16 is reduced, and the service life of the bending machine is prolonged.
In an alternative embodiment, the linear drive unit 11 comprises a first drive element 12, a screw 13 and a slide 14; a screw rod 13 driven by a first driving piece 12 is rotationally arranged on the mounting seat 6; the sliding block 14 is in threaded connection with the screw rod 13; a set of clamping blocks 8 adjacent to the mounting 6 is arranged on the sliding block 14.
In an alternative embodiment, the lower end of the clamping assembly 2 is provided with a slider 22; the slide block 22 is arranged on the slide rail 4 in a sliding manner; the slider 22 is provided with a self-locking assembly.
In an alternative embodiment, the elastic member 24 includes a connecting rod 25, a second elastic member 27, and a guide sleeve rod 26; the connecting rod 25 is sleeved on the guide sleeve rod 26 in a sliding manner; the second elastic member 27 has one end connected to the connecting rod 25 and the other end connected to the guide bush rod 26.
In an alternative embodiment, the connecting rod 25 is provided with a latch 28; the latch 28 is engaged with the guide sleeve rod 26.
In an alternative embodiment, the turntable 20 is located in the same plane as the mounting block 6.
The use principle of the invention is as follows: the mounting seat 6 is slid along the slide rail 4, and the position relation between the mounting seat 6 and the rotating platform 20 is adjusted, so that the steel bars can be conveniently bent; arranging the reinforcing steel bars among the groups of clamping blocks 8; the positions of a plurality of groups of clamping blocks 8 are adjusted through a linear driving part 11, so that the other end of the steel bar is directly opposite to the position between a fixed block 17 and a second air cylinder 18 and is positioned on one side of a rotating shaft 16; starting the first air cylinder 10, extruding the clamping block 8, clamping one end of the steel bar, enabling the other end of the steel bar to penetrate through the fixing block 17, starting the second air cylinder 18, and clamping the other end of the steel bar by the fixing block 17 and the second air cylinder 18; the second driving member 15 is activated to rotate the rotating shaft 16 and the rotating table 20, so that the reinforcing bars are bent.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. The reinforcing steel bar bending machine for building engineering is characterized by comprising a machine frame (1), a clamping assembly (2), a bending assembly (3), a sliding rail (4) and a buffer assembly (5); the bending assembly (3) and the sliding rail (4) are arranged on the rack (1); the clamping assembly (2) is arranged on the sliding rail (4) in a sliding manner; the buffer assembly (5) is arranged on the bending assembly (3).
2. The bending machine for reinforcing steel bars for building engineering according to claim 1, characterized in that the clamping assembly (2) comprises a mounting seat (6), a sliding rod (7), a clamping block (8), a first elastic member (9), a first air cylinder (10) and a linear driving part (11); the mounting seat (6) is arranged on the sliding rail (4) in a sliding manner; the sliding rod (7) is arranged at one end of the mounting seat (6); the first cylinder (10) is arranged at the other end of the mounting seat (6); the sliding rod (7) is arranged on the mounting seat (6); a plurality of groups of clamping blocks (8) are arranged, and the plurality of groups of clamping blocks (8) are arranged on the sliding rod (7) in a sliding manner; the first elastic piece (9) is arranged on the sliding rod (7) in a sliding mode and located between the clamping blocks (8), and two ends of the first elastic piece are connected to the clamping blocks (8) respectively; a clamping block (8) which is driven by a linear driving part (11) and is far away from a first air cylinder (10) is arranged on the sliding rod (7) in a sliding mode.
3. The bending machine for reinforcing steel bars for building engineering according to claim 1, characterized in that the bending assembly (3) comprises a second driving member (15), a rotating shaft (16), a fixed block (17), a second cylinder (18) and a rotating table (20); a rotating shaft (16) driven by a second driving piece (15) is rotationally arranged on the frame (1); the rotating platform (20) is arranged on the rotating shaft (16); the fixed block (17) is arranged on the rotating table (20); the second cylinder (18) is arranged on the rotating table (20), and the piston end faces the fixed block (17).
4. The bending machine for reinforcing bars for building engineering according to claim 1, characterized in that the buffer assembly (5) comprises a buffer plate (23) and an elastic component (24); the elastic component (24) is arranged on the rotating shaft (16); the buffer plate (23) is arranged on the elastic component (24) and is connected with the rotating table (20) in a sliding way.
5. Bar bending machine for building engineering according to claim 2, characterized in that the linear drive means (11) comprise a first drive element (12), a screw (13) and a sliding block (14); a screw rod (13) driven by a first driving piece (12) is rotationally arranged on the mounting seat (6); the sliding block (14) is in threaded connection with the screw rod (13); a group of clamping blocks (8) close to the mounting seat (6) are arranged on the sliding block (14).
6. The bending machine for reinforcing steel bars for building engineering according to claim 1, characterized in that the lower end of the clamping assembly (2) is provided with a slide block (22); the sliding block (22) is arranged on the sliding rail (4) in a sliding manner; the sliding block (22) is provided with a self-locking component.
7. The bending machine for reinforcing bars for building engineering according to claim 4, characterized in that the elastic part (24) comprises a connecting rod (25), a second elastic part (27) and a guide sleeve rod (26); the connecting rod (25) is sleeved on the guide sleeve rod (26) in a sliding manner; one end of the second elastic member (27) is connected to the connecting rod (25), and the other end is connected to the guide sleeve rod (26).
8. The bending machine for reinforcing steel bars for building engineering according to claim 7, characterized in that the connecting rod (25) is provided with a fixture block (28); the clamping block (28) is clamped with the guide sleeve rod (26).
9. The bending machine for reinforcing steel bars for building engineering according to claim 3, characterized in that the rotating table (20) and the mounting seat (6) are located on the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011598357.6A CN112547978A (en) | 2020-12-29 | 2020-12-29 | Steel bar bending machine for building engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011598357.6A CN112547978A (en) | 2020-12-29 | 2020-12-29 | Steel bar bending machine for building engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112547978A true CN112547978A (en) | 2021-03-26 |
Family
ID=75032994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011598357.6A Pending CN112547978A (en) | 2020-12-29 | 2020-12-29 | Steel bar bending machine for building engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112547978A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0222401A2 (en) * | 1985-11-13 | 1987-05-20 | Fujitsu Limited | IC sheet cutting press |
| JPH09277048A (en) * | 1996-04-17 | 1997-10-28 | Toushiyou Kk | Welding wire straightening machine |
| CN205519367U (en) * | 2016-03-06 | 2016-08-31 | 响水县智诚知识产权信息服务有限公司 | Rebar bending machine |
| CN205966886U (en) * | 2016-08-31 | 2017-02-22 | 陈富强 | Weld improvement folded block who takes bender |
| CN208976699U (en) * | 2018-10-09 | 2019-06-14 | 四川志德岩土工程有限责任公司 | It is a kind of for fixing the angle bender of disposable type reinforcing bar |
| CN209363503U (en) * | 2018-11-24 | 2019-09-10 | 上海福铁龙住宅工业发展有限公司 | A kind of bending machine |
| CN211437868U (en) * | 2019-11-20 | 2020-09-08 | 中建汇海有限公司 | Construction steel bar bending device |
-
2020
- 2020-12-29 CN CN202011598357.6A patent/CN112547978A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0222401A2 (en) * | 1985-11-13 | 1987-05-20 | Fujitsu Limited | IC sheet cutting press |
| JPH09277048A (en) * | 1996-04-17 | 1997-10-28 | Toushiyou Kk | Welding wire straightening machine |
| CN205519367U (en) * | 2016-03-06 | 2016-08-31 | 响水县智诚知识产权信息服务有限公司 | Rebar bending machine |
| CN205966886U (en) * | 2016-08-31 | 2017-02-22 | 陈富强 | Weld improvement folded block who takes bender |
| CN208976699U (en) * | 2018-10-09 | 2019-06-14 | 四川志德岩土工程有限责任公司 | It is a kind of for fixing the angle bender of disposable type reinforcing bar |
| CN209363503U (en) * | 2018-11-24 | 2019-09-10 | 上海福铁龙住宅工业发展有限公司 | A kind of bending machine |
| CN211437868U (en) * | 2019-11-20 | 2020-09-08 | 中建汇海有限公司 | Construction steel bar bending device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20210326 |