CN112620531A - Clutch type single-power steel bar bending device - Google Patents
Clutch type single-power steel bar bending device Download PDFInfo
- Publication number
- CN112620531A CN112620531A CN202011608474.6A CN202011608474A CN112620531A CN 112620531 A CN112620531 A CN 112620531A CN 202011608474 A CN202011608474 A CN 202011608474A CN 112620531 A CN112620531 A CN 112620531A
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- shaft
- clutch
- walking
- bending
- traveling
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- 238000005452 bending Methods 0.000 title claims abstract description 67
- 229910000831 Steel Inorganic materials 0.000 title abstract description 19
- 239000010959 steel Substances 0.000 title abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims description 26
- 230000009467 reduction Effects 0.000 claims description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003825 pressing Methods 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a clutch type single-power steel bar bending device, which belongs to the technical field of steel bar processing and comprises a rack, a traveling mechanism, a bending mechanism, a driving mechanism and a clutch mechanism, wherein the traveling mechanism comprises a traveling frame and a traveling assembly which are connected, and the traveling frame is connected with the rack in a sliding manner; the bending mechanism is arranged on the walking frame and comprises a bending component and a speed reducing component, and the bending component is connected with the speed reducing component; the driving mechanism is arranged on the walking frame and comprises a motor and a driving shaft, and the motor can drive the driving shaft to rotate; the clutch mechanism is arranged on the driving shaft and comprises a first clutch and a second clutch, the first clutch is selectively connected with the walking assembly and the driving shaft, the second clutch is selectively connected with the speed reducing assembly and the driving shaft, and the first clutch and the second clutch are not connected at the same time. The walking and bending functions are realized by providing power through one motor, the structure is compact, the working efficiency is improved, and the occupied space is reduced.
Description
Technical Field
The invention relates to the technical field of steel bar processing, in particular to a clutch type single-power steel bar bending device.
Background
At present, a large amount of reinforcing steel bars with different specifications and different shapes are needed in a reinforcing steel bar distribution base so as to meet the construction requirements of basic facilities such as bridges, expressways, subways and the like. In the production of steel bars, the steel bars need to be bent to form the desired shape. In order to form reinforcing bars of different shapes, it is necessary that the reinforcing bar bending apparatus can walk to bend the reinforcing bars at different positions.
The bending and walking of the conventional steel bar bending device are controlled by double power, namely one power is used for controlling the bending mechanism to bend the steel bars, the other power is used for controlling the walking wheels to walk, the double power is high in cost and complex in structure, and the power needs to be frequently switched in the production process, so that the production efficiency is low.
Disclosure of Invention
The invention aims to provide a clutch type single-power steel bar bending device, which aims to solve the technical problems of high cost, complex structure and low production efficiency in the prior art.
As the conception, the technical scheme adopted by the invention is as follows:
a clutch-type single-power rebar bending device, comprising:
a frame;
the walking mechanism comprises a walking frame and a walking assembly which are connected, and the walking frame is connected with the rack in a sliding manner;
the bending mechanism is arranged on the walking frame and comprises a bending component and a speed reducing component, and the bending component is connected with the speed reducing component;
the driving mechanism is arranged on the walking frame and comprises a motor and a driving shaft, and the motor can drive the driving shaft to rotate;
the clutch mechanism is arranged on the driving shaft and comprises a first clutch and a second clutch, the first clutch is selectively connected with the walking assembly and the driving shaft, the second clutch is selectively connected with the deceleration assembly and the driving shaft, and the first clutch and the second clutch are not connected at the same time.
Wherein, the motor with be provided with main drive mechanism between the drive shaft, main drive mechanism includes:
the first driving chain wheel is connected with a motor shaft of the motor;
a first driven sprocket connected to the drive shaft;
and the first transmission chain is wound on the first driving chain wheel and the first driven chain wheel.
The walking frame is rotatably provided with a walking shaft, the walking assembly is connected with the walking shaft, a driven transmission mechanism is arranged between the walking shaft and the driving shaft, and the first clutch can be connected with the driving shaft and the driven transmission mechanism.
Wherein the slave transmission mechanism comprises:
a second drive sprocket disposed on the first clutch, the first clutch being capable of engaging the drive shaft with the second drive sprocket;
the second driven chain wheel is arranged on the travelling shaft;
and the second transmission chain is wound on the second driving chain wheel and the second driven chain wheel.
Wherein, walking subassembly includes:
the walking chain wheel is fixedly arranged on the walking shaft;
the walking chain is wound on the walking chain wheel, and two ends of the walking chain are fixedly connected with the rack.
Wherein, walking subassembly still includes:
the tensioning shaft is rotatably arranged on the walking frame;
the tensioning wheel is fixedly arranged on the tensioning shaft, and the walking chain is wound on the tensioning wheel.
The frame is provided with a guide rail, the walking frame is provided with a roller, and the roller is in sliding fit with the guide rail.
Wherein the flexure assembly comprises:
the central shaft is fixed on the walking frame;
the driving shaft can drive the swing arm to rotate through the speed reduction assembly, and one end of the swing arm is provided with a notch;
the air cylinder is fixedly connected with the swing arm;
the bending shaft is arranged at the notch, the bending shaft is connected with the output end of the air cylinder, and the air cylinder can drive the bending shaft to move between the extending position and the retracting position.
Wherein, the speed reduction subassembly includes:
an input shaft disposed coaxially with the drive shaft, the second clutch being capable of engaging the input shaft with the drive shaft;
and the output shaft is connected with the swing arm.
The invention has the beneficial effects that:
according to the clutch type single-power steel bar bending device provided by the invention, when the steel bar bending device walks, the first clutch is engaged, the second clutch is disengaged, the first clutch engages the walking assembly with the driving shaft, so that the power of the motor is transmitted to the walking assembly through the driving shaft, and the walking assembly drives the walking frame to slide relative to the rack so as to change the position of the bending mechanism and facilitate bending of a plurality of positions of the steel bar; when the steel bar is bent, the second clutch is engaged, the first clutch is disengaged, the second clutch engages the speed reduction assembly with the driving shaft, so that the power of the motor is transmitted to the speed reduction assembly through the driving shaft, and the bending assembly drives the steel bar to be bent; the power is provided through the motor, the walking and bending functions are realized through the switching of the first clutch and the second clutch, the structure is compact, the cost is low, the working efficiency is improved, the occupied space is reduced, and the installation and the maintenance are convenient.
Drawings
FIG. 1 is a front view of a clutch-type single power rebar bending device provided by an embodiment of the invention;
FIG. 2 is a side view of a clutched, single-power rebar bending device provided by an embodiment of the invention;
fig. 3 is a top view of a clutch type single power rebar bending device provided by an embodiment of the invention.
In the figure:
11. a frame; 111. a guide rail;
21. a walking frame; 211. a roller; 212. a support plate; 22. a walking assembly; 221. a traveling sprocket; 222. a traveling chain; 223. tensioning the shaft; 224. a tension wheel; 23. a traveling shaft; 24. a brake disc; 25. a brake block;
31. a bending assembly; 311. a central shaft; 312. swinging arms; 313. a cylinder; 314. a bending shaft; 32. a speed reduction assembly;
41. a motor; 42. a drive shaft; 43. a motor frame;
51. a first clutch; 52. a second clutch;
61. a first drive sprocket; 62. a first driven sprocket; 63. a first drive chain;
71. a second drive sprocket; 72. a second driven sprocket; 73. and a second drive chain.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Referring to fig. 1 to 3, an embodiment of the present invention provides a clutch type single-power steel bar bending apparatus, including a frame 11, a traveling mechanism, a bending mechanism, a driving mechanism, and a clutch mechanism, where the frame 11 plays a supporting role, the traveling mechanism includes a traveling frame 21 and a traveling assembly 22 connected to each other, and the traveling frame 21 is slidably connected to the frame 11; the bending mechanism is arranged on the walking frame 21 and comprises a bending component 31 and a speed reducing component 32, and the bending component 31 is connected with the speed reducing component 32; the driving mechanism is arranged on the walking frame 21 and comprises a motor 41 and a driving shaft 42, and the motor 41 can drive the driving shaft 42 to rotate; the clutch mechanism is arranged on the driving shaft 42, the clutch mechanism comprises a first clutch 51 and a second clutch 52, the first clutch 51 selectively connects the walking assembly 22 and the driving shaft 42, the second clutch 52 selectively connects the speed reducing assembly 32 and the driving shaft 42, and the first clutch 51 and the second clutch 52 are not connected simultaneously.
When the steel bar bending machine walks, the first clutch 51 is engaged, the second clutch 52 is disengaged, the first clutch 51 engages the walking assembly 22 with the driving shaft 42, so that the power of the motor 41 is transmitted to the walking assembly 22 through the driving shaft 42, and the walking assembly 22 drives the walking frame 21 to slide relative to the rack 11, so as to change the position of the bending mechanism and facilitate bending of a plurality of positions of the steel bars; during bending, the second clutch 52 is engaged, the first clutch 51 is disengaged, the second clutch 52 engages the speed reduction assembly 32 with the driving shaft 42, so that the power of the motor 41 is transmitted to the speed reduction assembly 32 through the driving shaft 42, and the bending assembly 31 drives the reinforcing steel bars to bend; the walking and bending functions are realized by the switching of the first clutch 51 and the second clutch 52 through the power provided by the motor 41, the structure is compact, the cost is low, the working efficiency is improved, the occupied space is reduced, and the installation and the maintenance are convenient.
The frame 11 is provided with a guide rail 111, the walking frame 21 is provided with a roller 211, and the roller 211 is in sliding fit with the guide rail 111 to reduce the friction force when the frame 11 and the walking frame 21 move relatively and to make the walking frame 21 move stably. Specifically, the walking frame 21 is provided with a supporting plate 212, and the roller 211 is rotatably disposed on the supporting plate 212.
Optionally, rollers 211 are disposed on both sides of the walking frame 21, and two rows of rollers 211 are disposed on each side, wherein one row of rollers 211 is located on the upper side of the guide rail 111, and the other row of rollers 211 is located on the lower side of the guide rail 111, so that the operation is stable.
The motor 41 is fixed on the walking frame 21 through a motor frame 43, and the motor frame 43 plays a supporting role for the motor 41.
The motor 41 and the driving shaft 42 may be directly or indirectly connected. In this embodiment, a main transmission mechanism is disposed between the motor 41 and the driving shaft 42, the main transmission mechanism further includes a first driving sprocket 61, a first driven sprocket 62 and a first transmission chain 63, the first driving sprocket 61 is connected to a motor shaft of the motor 41, the first driven sprocket 62 is connected to the driving shaft 42, and the first transmission chain 63 is wound around the first driving sprocket 61 and the first driven sprocket 62. The power of the motor 41 is transmitted to the first driven sprocket 62 through the first driving sprocket 61, and further, to the driving shaft 42.
In this embodiment, the motor shaft is spaced parallel to the drive shaft 42 and the motor shaft is positioned above the drive shaft 42, reducing the lateral dimension of the device.
Alternatively, the main transmission may be a gear transmission, a belt transmission.
The traveling frame 21 is rotatably provided with a traveling shaft 23, the traveling unit 22 is connected to the traveling shaft 23, a slave transmission mechanism is provided between the traveling shaft 23 and the drive shaft 42, and the first clutch 51 can engage the drive shaft 42 and the slave transmission mechanism. The driving shaft 42 transmits power from the transmission mechanism to the traveling shaft 23, and the traveling frame 21 is moved by the traveling unit 22.
The driven transmission mechanism comprises a second driving chain wheel 71, a second driven chain wheel 72 and a second transmission chain 73, the second driving chain wheel 71 is arranged on the first clutch 51, and the first clutch 51 can be used for jointing the driving shaft 42 and the second driving chain wheel 71; the second driven sprocket 72 is provided on the traveling shaft 23, and the second drive chain 73 is wound around the second drive sprocket 71 and the second driven sprocket 72. The first clutch 51 engages the driving shaft 42 and the second driving sprocket 71, the driving shaft 42 drives the second driving sprocket 71 to rotate, and further drives the second driven sprocket 72 to rotate through the second transmission chain 73, and the second driven sprocket 72 drives the traveling shaft 23 to rotate.
The traveling assembly 22 includes a traveling sprocket 221 and a traveling chain 222, the traveling sprocket 221 is fixedly disposed on the traveling shaft 23, the traveling chain 222 is wound around the traveling sprocket 221, and both ends of the traveling chain 222 are fixedly connected to the frame 11. The traveling shaft 23 rotates to drive the traveling sprocket 221 to rotate, the traveling chain 222 is wound around the traveling sprocket 221, and both ends of the traveling chain 222 are fixedly connected to the frame 11, when the traveling sprocket 221 rotates, the traveling sprocket 221 and the traveling chain 222 move relatively, and since the frame 11 is fixed, the traveling sprocket 221 acts on the traveling frame 21 through the traveling shaft 23, so that the traveling frame 21 moves relative to the frame 11. It can be seen that the traveling direction of the traveling frame 21 is perpendicular to the extending direction of the traveling shaft 23.
The traveling assembly 22 further includes a tensioning shaft 223 and a tensioning wheel 224, the tensioning shaft 223 is rotatably disposed on the traveling frame 21, the tensioning wheel 224 is fixedly disposed on the tensioning shaft 223, and the traveling chain 222 is wound around the tensioning wheel 224. The tensioning wheel 224 tensions the travel chain 222. In this embodiment, tension pulleys 224 are disposed on both sides of the traveling sprocket 221 to balance the forces.
Running gear still includes the brake subassembly, and the brake subassembly is current structure, specifically, including brake disc 24 and brake block 25, brake disc 24 and second driven sprocket 72 fixed connection, and brake block 25 sets up in one side of brake disc 24, and brake block 25 can butt brake disc 24 in order to rub with brake disc 24 for brake disc 24 stall, and then makes second driven sprocket 72 stall, has strengthened the bending stability of equipment.
The reduction assembly 32 includes an input shaft disposed coaxially with the drive shaft 42 and an output shaft coupled with the swing arm 312, the second clutch 52 being capable of engaging the input shaft with the drive shaft 42. Between the input shaft and the output shaft may be a gear transmission.
When the reinforcing steel bar is bent, the air cylinder 313 drives the bending shaft 314 to extend to the extending position, the reinforcing steel bar is placed at the bending position, the second clutch 52 is connected with the speed reducing assembly 32 and the driving shaft 42, the driving shaft 42 drives the swing arm 312 to rotate through the speed reducing assembly 32, and the bending shaft 314 rotates along with the swing arm 312, so that the reinforcing steel bar is bent. When the reinforcing steel bar needs to be reversely bent, the air cylinder 313 drives the bending shaft 314 to retract to the retracted position, then the bending shaft 314 rotates to the upper side of the reinforcing steel bar, the air cylinder 313 drives the bending shaft 314 to extend to the extending position, and then the reinforcing steel bar is reversely bent.
The first clutch 51 and the second clutch 52 are conventional electromagnetic clutches, and are electrically controlled to generate pressing force by electromagnetic force, and the structure and the operation principle of the electromagnetic clutches are conventional.
The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A clutch-type single-power rebar bending device, comprising:
a frame (11);
the walking mechanism comprises a walking frame (21) and a walking assembly (22) which are connected, and the walking frame (21) is connected with the rack (11) in a sliding manner;
the bending mechanism is arranged on the walking frame (21), the bending mechanism comprises a bending component (31) and a speed reducing component (32), and the bending component (31) is connected with the speed reducing component (32);
the driving mechanism is arranged on the walking frame (21) and comprises a motor (41) and a driving shaft (42), and the motor (41) can drive the driving shaft (42) to rotate;
a clutch mechanism disposed on the drive shaft (42), the clutch mechanism including a first clutch (51) and a second clutch (52), the first clutch (51) selectively engaging the traveling assembly (22) with the drive shaft (42), the second clutch (52) selectively engaging the decelerating assembly (32) with the drive shaft (42), the first clutch (51) and the second clutch (52) not being engaged at the same time.
2. Clutch-type single-power rebar bending device according to claim 1, characterized in that a main transmission mechanism is arranged between said motor (41) and said drive shaft (42), said main transmission mechanism comprising:
a first driving sprocket (61) connected with a motor shaft of the motor (41);
a first driven sprocket (62) connected to the drive shaft (42);
and a first transmission chain (63) wound around the first driving sprocket (61) and the first driven sprocket (62).
3. The clutched single-power rebar bending device according to claim 1, characterized in that a walking shaft (23) is rotatably arranged on the walking frame (21), the walking assembly (22) is connected with the walking shaft (23), a driven transmission mechanism is arranged between the walking shaft (23) and the driving shaft (42), and the first clutch (51) can be used for connecting the driving shaft (42) and the driven transmission mechanism.
4. The clutched, single-power rebar bending device of claim 3, wherein the slave transmission mechanism comprises:
a second drive sprocket (71) provided on the first clutch (51), the first clutch (51) being capable of engaging the drive shaft (42) with the second drive sprocket (71);
a second driven sprocket (72) provided on the traveling shaft (23);
and a second transmission chain (73) wound around the second drive sprocket (71) and the second driven sprocket (72).
5. A clutched mono-dynamic rebar bending device as claimed in claim 3, wherein the walking assembly (22) comprises:
a traveling sprocket (221) fixedly provided on the traveling shaft (23);
and the walking chain (222) is wound on the walking chain wheel (221), and two ends of the walking chain (222) are fixedly connected with the rack (11).
6. The clutched, mono-dynamic rebar bending device of claim 5, wherein the walking assembly (22) further comprises:
a tension shaft (223) rotatably provided on the traveling frame (21);
and a tension pulley (224) fixedly provided on the tension shaft (223), wherein the travel chain (222) is wound around the tension pulley (224).
7. The clutch-type single-power rebar bending device according to claim 1, wherein a guide rail (111) is arranged on the frame (11), a roller (211) is arranged on the walking frame (21), and the roller (211) is in sliding fit with the guide rail (111).
8. A clutched mono-dynamic rebar bending device according to claim 1, wherein the bending assembly (31) comprises:
a center shaft (311) fixed to the traveling frame (21);
the swing arm (312) is rotatably connected with the central shaft (311), the driving shaft (42) can drive the swing arm (312) to rotate through the speed reducing assembly (32), and one end of the swing arm (312) is provided with a notch;
the air cylinder (313) is fixedly connected with the swing arm (312);
the bending shaft (314) is arranged at the notch, the bending shaft (314) is connected with the output end of the air cylinder (313), and the air cylinder (313) can drive the bending shaft (314) to move between the extending position and the retracting position.
9. A clutched mono-dynamic rebar bending device as claimed in claim 8, wherein the speed reduction assembly (32) comprises:
an input shaft disposed coaxially with the drive shaft (42), the second clutch (52) being capable of engaging the input shaft with the drive shaft (42);
an output shaft connected with the swing arm (312).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011608474.6A CN112620531A (en) | 2020-12-30 | 2020-12-30 | Clutch type single-power steel bar bending device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011608474.6A CN112620531A (en) | 2020-12-30 | 2020-12-30 | Clutch type single-power steel bar bending device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112620531A true CN112620531A (en) | 2021-04-09 |
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ID=75286861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011608474.6A Pending CN112620531A (en) | 2020-12-30 | 2020-12-30 | Clutch type single-power steel bar bending device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112620531A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51136556A (en) * | 1975-05-06 | 1976-11-26 | Evg Entwicklung Verwert Ges | Bending machine for bar material |
| CN101020220A (en) * | 2007-03-22 | 2007-08-22 | 刘思洋 | Steel bar bending device |
| CN205835649U (en) * | 2016-07-04 | 2016-12-28 | 黄石华齐自动化设备有限公司 | Full-automatic deformed bar tensioning equipment |
| CN107855434A (en) * | 2017-11-09 | 2018-03-30 | 建科机械（天津）股份有限公司 | A kind of bending main frame of hydraulic control |
| CN211768408U (en) * | 2020-03-14 | 2020-10-27 | 常州金源机械设备有限公司 | Driving device for linear walking of conveying equipment |
| CN214720101U (en) * | 2020-12-30 | 2021-11-16 | 建科机械（天津）股份有限公司 | Steel bar bending device |
-
2020
- 2020-12-30 CN CN202011608474.6A patent/CN112620531A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51136556A (en) * | 1975-05-06 | 1976-11-26 | Evg Entwicklung Verwert Ges | Bending machine for bar material |
| CN101020220A (en) * | 2007-03-22 | 2007-08-22 | 刘思洋 | Steel bar bending device |
| CN205835649U (en) * | 2016-07-04 | 2016-12-28 | 黄石华齐自动化设备有限公司 | Full-automatic deformed bar tensioning equipment |
| CN107855434A (en) * | 2017-11-09 | 2018-03-30 | 建科机械（天津）股份有限公司 | A kind of bending main frame of hydraulic control |
| CN211768408U (en) * | 2020-03-14 | 2020-10-27 | 常州金源机械设备有限公司 | Driving device for linear walking of conveying equipment |
| CN214720101U (en) * | 2020-12-30 | 2021-11-16 | 建科机械（天津）股份有限公司 | Steel bar bending device |
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Country or region after: China Address after: 300408 No.7, Wuwei Road, Lugang logistics equipment Industrial Park, Beichen District, Tianjin Applicant after: Jianke Intelligent Equipment Manufacturing (Tianjin) Co.,Ltd. Address before: 300408 No.7, Wuwei Road, Lugang logistics equipment Industrial Park, Beichen District, Tianjin Applicant before: TJK MACHINERY (TIANJIN) Co.,Ltd. Country or region before: China |
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