CN112122509A - Building reinforcing bar for building is from isometric cutting equipment that advances - Google Patents
Building reinforcing bar for building is from isometric cutting equipment that advances Download PDFInfo
- Publication number
- CN112122509A CN112122509A CN202010796351.3A CN202010796351A CN112122509A CN 112122509 A CN112122509 A CN 112122509A CN 202010796351 A CN202010796351 A CN 202010796351A CN 112122509 A CN112122509 A CN 112122509A
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- bottom plate
- transmission
- gear
- frame
- steel bars
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- 238000005520 cutting process Methods 0.000 title claims abstract description 53
- 230000003014 reinforcing effect Effects 0.000 title description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 64
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000010276 construction Methods 0.000 claims abstract description 19
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- B21F23/00—Feeding wire in wire-working machines or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Sawing (AREA)
Abstract
The invention relates to isometric cutting equipment for buildings, in particular to self-advancing isometric cutting equipment for construction steel bars for buildings. The invention provides a self-advancing equal-length cutting device for construction reinforcing steel bars, which can automatically cut reinforcing steel bars and can cut equal-length reinforcing steel bars. The invention provides a self-advancing equal-length cutting device for construction reinforcing steel bars for buildings, which comprises: a bottom plate, wherein a support frame is connected in the middle of the bottom plate; the conveying mechanism is arranged between the bottom plate and the support frame; the cutting mechanism is arranged on the bottom plate and is in transmission connection with the material conveying mechanism. According to the steel bar cutting machine, intermittent blanking can be performed through the blanking mechanism, so that steel bars fall into the conveying mechanism intermittently, the steel bars can be conveyed rightwards intermittently through the conveying mechanism, the distance for conveying the steel bars is equal at each time, the steel bars can be cut through the cutting mechanism, and therefore the effects that the steel bars can be cut automatically, and the equal-length steel bars can be cut are achieved.
Description
Technical Field
The invention relates to isometric cutting equipment for buildings, in particular to self-advancing isometric cutting equipment for construction steel bars for buildings.
Background
Need use more isometric construction steel bar on the building site, and transport to the general length of reinforcing bar on the building site longer, so need cut into the isometric reinforcing bar that length is suitable with the longer reinforcing bar of length, it is general at present that the handheld reinforcing bar of construction worker cuts into the isometric reinforcing bar that length is suitable with the longer reinforcing bar of length, but the construction worker relies on the manual cutting of sensation to have great error, and the manual cutting reinforcing bar intensity of labour of construction worker is great, very tired.
Therefore, the need of developing a self-advancing equal-length cutting device for construction steel bars, which can automatically cut the steel bars and cut the equal-length steel bars, is urgent.
Disclosure of Invention
(1) Technical problem to be solved
The invention aims to overcome the defect that a constructor manually cuts the equal-length reinforcing steel bars by feel with a large error, and the technical problem to be solved is to provide the self-advancing equal-length cutting equipment for the building reinforcing steel bars, which can automatically cut the reinforcing steel bars and can cut the equal-length reinforcing steel bars.
(2) Technical scheme
In order to solve the technical problem, the invention provides a self-advancing equal-length cutting device for construction steel bars for buildings, which comprises: a bottom plate, wherein a support frame is connected in the middle of the bottom plate; the conveying mechanism is arranged between the bottom plate and the support frame; the cutting mechanism is arranged on the bottom plate and is in transmission connection with the material conveying mechanism.
Preferably, the material transporting mechanism comprises: the support frame is connected with a steel bar guide rail; the servo motor is arranged on one side of the bottom plate and is connected with a rotating rod; the rotating rod is connected with a first sector gear; the fixing frame is connected to one side, close to the first sector gear, of the bottom plate; the fixing frame is rotatably connected with the first connecting shaft; one side of the first connecting shaft is connected with a first transmission gear which is meshed with the first sector gear; the other side of the first connecting shaft is connected with a first bevel gear; the first transmission belt set is rotatably connected between the bottom plate and the steel bar guide rail; the transmission shaft of the first transmission belt set is connected with a second bevel gear which is meshed with the first bevel gear; the belt of the first transmission belt group is connected with a plurality of push plates; the backup pad, the last one side that is close to the second bevel gear of steel bar guide is connected with the backup pad, and the backup pad contacts with the belt medial surface of first transmission belt group.
Preferably, the cutting mechanism comprises: one side of the bottom plate, which is close to the servo motor, is connected with the slide rail frame; the cutting unit is connected with the sliding rail frame in a sliding manner; the cutting unit is connected with a rack; the reset spring is connected between the cutting unit and the slide rail frame; one side of the sliding rail frame is rotatably connected with a second transmission gear which is meshed with the rack; the side, close to the slide rail frame, of the bottom plate is rotatably connected with a second connecting shaft; the second transmission belt set is connected between the second connecting shaft and a transmission shaft of the second transmission gear; the second connecting shaft is connected with a second transmission gear; and one side of the rotating rod, which is close to the first sector gear, is connected with a second sector gear, and the second sector gear is meshed with a third transmission gear.
Preferably, still include unloading mechanism, unloading mechanism includes: the outer side of the bottom plate is connected with a storage box; one side of the storage box is connected with two mounting blocks; the central shaft is rotatably connected between the mounting blocks; the two sides of the central shaft are both connected with connecting rods; the upper part of the connecting rod is rotatably connected with a first sliding baffle which is connected with the material storage box in a sliding way; the lower parts of the connecting rods are rotatably connected with a second sliding baffle which is connected with the material storage box in a sliding way; the torsion spring is connected between the connecting rod and the mounting block; the other side of the material storage box is connected with a guide block; the handle connecting frame is connected in the guide block in a sliding mode and is connected with the second sliding baffle.
Preferably, the method further comprises the following steps: one side of the guide plate and the steel bar guide rail is connected with a guide plate.
(3) Advantageous effects
The invention has the beneficial effects that: intermittent type nature unloading can be carried out through unloading mechanism, make reinforcing bar intermittent type nature fall into fortune material mechanism in, can intermittent type nature transport the reinforcing bar right through fortune material mechanism, and transport the distance of reinforcing bar isometric at every turn, can cut the reinforcing bar through cutting mechanism to reach can the automatic cutout reinforcing bar, can cut the effect of isometric reinforcing bar, and then need not the handheld reinforcing bar of construction worker and cut the reinforcing bar, realized can reducing the error, can reduce construction worker intensity of labour's purpose.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
Fig. 3 is a third perspective view of the present invention.
Fig. 4 is an enlarged view of a portion a of the present invention.
Fig. 5 is an enlarged view of part B of the present invention.
The labels in the figures are: 1-a bottom plate, 2-a support frame, 3-a material conveying mechanism, 31-a steel bar guide rail, 32-a servo motor, 33-a first sector gear, 34-a first transmission gear, 35-a first connecting shaft, 36-a first bevel gear, 37-a fixed frame, 38-a second bevel gear, 39-a first transmission belt set, 310-a push plate, 311-a support plate, 4-a cutting mechanism, 41-a cutting machine set, 42-a slide rail frame, 43-a rack, 44-a return spring, 45-a second transmission gear, 46-a second transmission belt set, 47-a second connecting shaft, 48-a third transmission gear, 49-a second sector gear, 5-a blanking mechanism, 51-a material storage box, 52-a first sliding baffle and 53-a second sliding baffle, 54-connecting rod, 55-central shaft, 56-mounting block, 57-torsion spring, 58-handle connecting frame, 59-guide block and 6-material guide plate.
Detailed Description
The invention is further described below with reference to the figures and examples.
Example 1
A building steel bar self-advancing isometric cutting device for buildings is shown in figures 1-4 and comprises a bottom plate 1, a support frame 2, a material conveying mechanism 3 and a cutting mechanism 4, wherein the support frame 2 is connected to the middle of the top of the bottom plate 1, the material conveying mechanism 3 is arranged between the bottom plate 1 and the support frame 2, the cutting mechanism 4 is arranged on the top of the bottom plate 1, and the cutting mechanism 4 is in transmission connection with the material conveying mechanism 3.
The material conveying mechanism 3 comprises a steel bar guide rail 31, a servo motor 32, a first sector gear 33, a first transmission gear 34, a first connecting shaft 35, a first bevel gear 36, a fixed frame 37, a second bevel gear 38, a first transmission belt group 39, a push plate 310 and a support plate 311, the top of the support frame 2 is connected with the steel bar guide rail 31, the right side of the top of the bottom plate 1 is provided with the servo motor 32, the output shaft of the servo motor 32 is connected with a rotating rod through a coupler, the rotating rod is connected with the first sector gear 33, the top of the bottom plate 1 is connected with the fixed frame 37, the fixed frame 37 is positioned at the front side of the first sector gear 33, the fixed frame 37 is rotatably connected with the first connecting shaft 35, the left side of the first connecting shaft 35 is connected with the first transmission gear 34, the first transmission gear 34 is meshed with the first sector gear 33, the right side of the first connecting shaft 35 is connected with the first bevel gear 36, the first transmission belt group 39 is, a second bevel gear 38 is connected to a transmission shaft of the first transmission belt group 39, the second bevel gear 38 is meshed with the first bevel gear 36, three push plates 310 are evenly connected to a belt of the first transmission belt group 39 at intervals, a support plate 311 is connected to the front side face of the steel bar guide rail 31, the support plate 311 is located on the left side of the second bevel gear 38, and the support plate 311 is in contact with the inner side face of the belt of the first transmission belt group 39.
The cutting mechanism 4 comprises a cutting unit 41, a slide rail frame 42, a rack 43, a return spring 44, a second transmission gear 45, a second transmission belt group 46, a second connecting shaft 47, a third transmission gear 48 and a second sector gear 49, the slide rail frame 42 is connected with the right rear part of the top of the bottom plate 1, the cutting unit 41 is connected with the slide rail frame 42 in a sliding way, the rack 43 is connected with the cutting unit 41, the return spring 44 is connected between the cutting unit 41 and the slide rail frame 42, the second transmission gear 45 is rotatably connected with the rear part of the slide rail frame 42, the second transmission gear 45 is meshed with the rack 43, the second connecting shaft 47 is rotatably connected with the top of the bottom plate 1, the second connecting shaft 47 is positioned at the left rear part of the slide rail frame 42, the second transmission belt group 46 is connected between the second connecting shaft 47 and a transmission shaft of the second transmission gear 45, the third transmission gear 48 is connected with the second sector gear 49 is connected, the second sector gear 49 is located to the left of the first sector gear 33, and the second sector gear 49 is meshed with the third transmission gear 48.
When the steel bar cutting work is to be performed, a construction worker can place the steel bar on the steel bar guide rail 31, the servo motor 32 is started again to enable the rotating rod to rotate, the rotating rod rotates to drive the first sector gear 33 and the second sector gear 49 to rotate, the first sector gear 33 rotates to enable the first connecting shaft 35 to intermittently rotate through the first transmission gear 34, the first connecting shaft 35 intermittently rotates to enable the first transmission belt group 39 to intermittently rotate through the first bevel gear 36 and the second bevel gear 38, the first transmission belt group 39 intermittently rotates to intermittently push the steel bar to the right through the push plate 310, so that the distance of the steel bar moving to the right each time is equal, when the steel bar stops moving to the right, the second sector gear 49 rotates to be meshed with the third transmission gear 48, the second sector gear 49 rotates to enable the second connecting shaft 47 to rotate through the third transmission gear 48, the second connecting shaft 47 rotates to enable the second transmission gear 45 to rotate through the second transmission belt group 46, the second transmission gear 45 rotates to enable the rack 43 to move downwards, the rack 43 moves downwards to drive the cutting unit 41 to move downwards, the return spring 44 stretches along with the rack, the cutting unit 41 can be started, the cutting unit 41 moves downwards to cut the steel bars, after the steel bars are cut off, the second sector gear 49 rotates to be not meshed with the third transmission gear 48, the cutting unit 41 can move upwards under the action of the return spring 44, at the moment, the steel bars continue to move rightwards, the operation is repeated, the steel bar cutting operation can be repeated, and after the steel bar cutting operation is completed, the servo motor 32 and the cutting unit 41 are closed.
Example 2
On the basis of embodiment 1, as shown in fig. 1, 2 and 5, the blanking device further includes a blanking mechanism 5, the blanking mechanism 5 includes a storage box 51, a first sliding baffle 52, a second sliding baffle 53, a connecting rod 54, a central shaft 55, mounting blocks 56, a torsion spring 57, a handle connecting frame 58 and a guide block 59, the storage box 51 is connected to the outside of the top of the base plate 1, the mounting blocks 56 are connected to the left and right sides of the rear side of the storage box 51, the central shaft 55 is rotatably connected between the two mounting blocks 56, the connecting rods 54 are connected to the left and right sides of the central shaft 55, the first sliding baffle 52 is rotatably connected between the upper parts of the two connecting rods 54, the first sliding baffle 52 is slidably connected with the storage box 51, the second sliding baffle 53 is rotatably connected between the lower parts of the two connecting rods 54, the second sliding baffle 53 is slidably connected with the storage box 51, the torsion spring 57 is connected between the connecting, the left side surface of the material storage box 51 is connected with a guide block 59, the guide block 59 is connected with a handle connecting frame 58 in a sliding manner, and the rear part of the handle connecting frame 58 is connected with the left part of the second sliding baffle 53.
A plurality of steel bars can be placed into the storage box 51, the steel bar at the lowest side falls on the second sliding baffle 53, a construction worker can push the handle connecting frame 58 backwards to enable the second sliding baffle 53 to move backwards, the connecting rod 54 swings with the second sliding baffle, the torsion spring 57 is compressed with the second sliding baffle, at the moment, the connecting rod 54 can enable the first sliding baffle 52 to move forwards, the first sliding baffle 52 moves forwards to block the steel bar at the upper side, the second sliding baffle 53 moves backwards to not block the storage box 51, and the steel bar at the lowest side falls into the steel bar guide rail 31; then the handle connecting frame 58 is loosened, the connecting rod 54 can swing to reset under the action of the torsion spring 57, so that the first sliding baffle 52 can move backwards to reset, the second sliding baffle 53 moves forwards to reset, the handle connecting frame 58 moves forwards to reset, and the reinforcing steel bar does not need to be lifted up manually and repeatedly and is placed into the reinforcing steel bar guide rail 31, and the use is more convenient.
Example 3
On the basis of embodiment 2, as shown in fig. 1, the steel bar guide rail further includes a guide plate 6, and the guide plate 6 is connected to the right side surface of the steel bar guide rail 31.
The guide plate 6 plays a role in guiding, and the cut steel bars fall into the ground along the guide plate 6, so that the cut steel bars can be stacked in order.
The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. The utility model provides a construction steel bar for building is from isometric cutting equipment of advancing which characterized in that includes:
a bottom plate (1) with a support frame (2) connected in the middle;
the conveying mechanism (3) is arranged between the bottom plate (1) and the support frame (2);
the cutting mechanism (4) is arranged on the bottom plate (1), and the cutting mechanism (4) is in transmission connection with the material conveying mechanism (3).
2. A self-advancing isometric cutting apparatus for construction rebar according to claim 1 wherein the material handling mechanism (3) comprises:
the support frame (2) is connected with a steel bar guide rail (31);
the servo motor (32) is installed on one side of the bottom plate (1), and a rotating rod is connected to the servo motor (32);
the rotating rod is connected with a first sector gear (33);
the fixing frame (37) is connected to one side, close to the first sector gear (33), of the bottom plate (1);
the first connecting shaft (35) is rotatably connected to the fixed frame (37);
one side of the first connecting shaft (35) is connected with a first transmission gear (34), and the first transmission gear (34) is meshed with the first sector gear (33);
the other side of the first connecting shaft (35) is connected with a first bevel gear (36);
the first transmission belt group (39) is rotatably connected between the bottom plate (1) and the steel bar guide rail (31);
the transmission shaft of the first transmission belt set (39) is connected with a second bevel gear (38), and the second bevel gear (38) is meshed with the first bevel gear (36);
the belt of the first transmission belt group (39) is connected with a plurality of push plates (310);
one side of the reinforcing steel bar guide rail (31) close to the second bevel gear (38) is connected with the supporting plate (311), and the supporting plate (311) is in contact with the inner side surface of the belt of the first transmission belt set (39).
3. A self-advancing isometric cutting apparatus for construction rebar according to claim 2 wherein the cutting mechanism (4) comprises:
the slide rail frame (42) is connected to one side, close to the servo motor (32), of the bottom plate (1);
the cutting unit (41), the sliding rail frame (42) is connected with the cutting unit (41) in a sliding way;
the rack (43) is connected to the cutting unit (41);
the return spring (44) is connected between the cutting unit (41) and the slide rail frame (42);
one side of the slide rail frame (42) is rotatably connected with a second transmission gear (45), and the second transmission gear (45) is meshed with the rack (43);
the side, close to the slide rail frame (42), of the bottom plate (1) is rotatably connected with a second connecting shaft (47);
a second transmission belt set (46), wherein a second transmission belt set (46) is connected between the second connecting shaft (47) and a transmission shaft of the second transmission gear (45);
the third transmission gear (48) is connected to the second connecting shaft (47);
and one side of the rotating rod, which is close to the first sector gear (33), is connected with a second sector gear (49), and the second sector gear (49) is meshed with a third transmission gear (48).
4. A self-advancing isometric cutting apparatus for construction steel bars according to claim 3 further comprising a blanking mechanism (5), wherein the blanking mechanism (5) comprises:
the outer side of the bottom plate (1) is connected with a storage box (51);
the mounting block (56), one side of the storage box (51) is connected with two mounting blocks (56);
the central shaft (55) is rotatably connected between the mounting blocks (56);
the connecting rods (54) are connected to both sides of the central shaft (55);
the first sliding baffle (52) is rotatably connected between the upper parts of the connecting rods (54), and the first sliding baffle (52) is connected with the material storage box (51) in a sliding manner;
the lower parts of the connecting rods (54) are rotatably connected with second sliding baffles (53), and the second sliding baffles (53) are connected with the material storage box (51) in a sliding manner;
a torsion spring (57), wherein the torsion spring (57) is connected between the connecting rod (54) and the mounting block (56);
the other side of the storage box (51) is connected with the guide block (59);
the handle connecting frame (58) is connected with the guide block (59) in a sliding way, and the handle connecting frame (58) is connected with the second sliding baffle (53).
5. A self-advancing isometric cutting apparatus for construction rebar according to claim 4 further comprising:
one side of the guide plate (6) and the steel bar guide rail (31) is connected with the guide plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010796351.3A CN112122509B (en) | 2020-08-10 | 2020-08-10 | Construction steel bar for building is from isometric cutting equipment of advancing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010796351.3A CN112122509B (en) | 2020-08-10 | 2020-08-10 | Construction steel bar for building is from isometric cutting equipment of advancing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112122509A true CN112122509A (en) | 2020-12-25 |
| CN112122509B CN112122509B (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010796351.3A Expired - Fee Related CN112122509B (en) | 2020-08-10 | 2020-08-10 | Construction steel bar for building is from isometric cutting equipment of advancing |
Country Status (1)
| Country | Link |
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| CN (1) | CN112122509B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112606148A (en) * | 2021-01-24 | 2021-04-06 | 安鹏 | Firewood splitting machine for farmer's lewy stove |
| CN112757383A (en) * | 2021-01-19 | 2021-05-07 | 黄亮 | Equidistant hole forming equipment for plastic pipes for manufacturing high-end equipment |
| CN112893714A (en) * | 2021-03-08 | 2021-06-04 | 刘文升 | A reinforcing bar equidistance cutting machine for well lid is made |
| CN112916768A (en) * | 2021-03-24 | 2021-06-08 | 刘文升 | Equal-length cutting equipment for reinforcing steel bars for manufacturing high-end equipment |
| CN113199564A (en) * | 2021-05-07 | 2021-08-03 | 邓文浩 | Bench foot preparation is with wooden equidistance cutting equipment |
| CN113333641A (en) * | 2021-06-22 | 2021-09-03 | 赖贵玲 | A reinforcing bar equidistance cutting equipment for metal manufacture |
| CN113579350A (en) * | 2021-09-30 | 2021-11-02 | 南通恒华金属构件有限公司 | Steel construction material cutting device of high security |
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| CN210175837U (en) * | 2019-07-29 | 2020-03-24 | 淄博美氟新材料有限公司 | Plastic tubing material feeding unit |
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| JPS5522413A (en) * | 1978-07-31 | 1980-02-18 | Nippon Kyoryo Kk | Carrying apparatus of angle steel |
| JPH09108762A (en) * | 1995-10-23 | 1997-04-28 | Daido Steel Co Ltd | Method and device for producing straight bar from steel wire rod of hard workability |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757383A (en) * | 2021-01-19 | 2021-05-07 | 黄亮 | Equidistant hole forming equipment for plastic pipes for manufacturing high-end equipment |
| CN112606148A (en) * | 2021-01-24 | 2021-04-06 | 安鹏 | Firewood splitting machine for farmer's lewy stove |
| CN112893714A (en) * | 2021-03-08 | 2021-06-04 | 刘文升 | A reinforcing bar equidistance cutting machine for well lid is made |
| CN112893714B (en) * | 2021-03-08 | 2023-10-24 | 刘文升 | A reinforcing bar equidistance cutting machine for well lid is made |
| CN112916768A (en) * | 2021-03-24 | 2021-06-08 | 刘文升 | Equal-length cutting equipment for reinforcing steel bars for manufacturing high-end equipment |
| CN112916768B (en) * | 2021-03-24 | 2023-08-18 | 南京南华航空产业有限公司 | Equal-length cutting equipment for reinforcing steel bars for manufacturing high-end equipment |
| CN113199564A (en) * | 2021-05-07 | 2021-08-03 | 邓文浩 | Bench foot preparation is with wooden equidistance cutting equipment |
| CN113333641A (en) * | 2021-06-22 | 2021-09-03 | 赖贵玲 | A reinforcing bar equidistance cutting equipment for metal manufacture |
| CN113333641B (en) * | 2021-06-22 | 2024-02-09 | 赖贵玲 | Equidistant steel bar cutting equipment for metal manufacturing |
| CN113579350A (en) * | 2021-09-30 | 2021-11-02 | 南通恒华金属构件有限公司 | Steel construction material cutting device of high security |
| CN113579350B (en) * | 2021-09-30 | 2021-11-30 | 南通恒华金属构件有限公司 | Steel construction material cutting device of high security |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112122509B (en) | 2022-07-29 |
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