CN113617897A - Cylindrical steel bending device and working method thereof - Google Patents
Cylindrical steel bending device and working method thereof Download PDFInfo
- Publication number
- CN113617897A CN113617897A CN202110940525.3A CN202110940525A CN113617897A CN 113617897 A CN113617897 A CN 113617897A CN 202110940525 A CN202110940525 A CN 202110940525A CN 113617897 A CN113617897 A CN 113617897A
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- cylindrical steel
- bending
- forming wheel
- shaped
- connecting seat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/022—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
- B21D7/162—Heating equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a cylindrical steel bending device and a working method thereof. The device comprises an oil cylinder horizontally arranged on a base; a piston rod of the oil cylinder is connected with a Y-shaped connecting seat; a bending top column is arranged at the central line position of the front side of the Y-shaped connecting seat; c-shaped positioning dies are symmetrically arranged on two end branches of the Y-shaped connecting seat, and the C-shaped positioning dies are rotationally arranged on the Y-shaped connecting seat; and the outer side end of the C-shaped positioning die is rotatably provided with a forming wheel. According to the cylindrical steel bending device, the cylindrical steel is positioned and guided during forming through rotation of the forming wheel, the defects of distortion, scratch and the like caused by sliding friction between the cylindrical steel and the surface of the forming wheel during forming are eliminated, and the strength and the appearance of a workpiece are improved.
Description
Technical Field
The invention particularly relates to a cylindrical steel bending device and a working method thereof, and belongs to the technical field of steel processing.
Background
Cylindrical steel (round steel, reinforcing steel and the like) parts are widely applied to sheet metal and mechanical products, but the bending die structure of the parts can cause the round steel to generate sliding friction with the surface of a female die during bending forming so as to cause the defects of plastic indentation, scratching and the like on the surface of the round steel. In addition, in the course of working, the round steel is easy to appear the decentraction and is out of shape, leads to making the round steel take off the material difficulty, and when taking off the material, takes place the friction once more between part after the bending and the lower mould, leads to the secondary damage to the part surface, need through the mechanical polishing surface, causes manufacturing cost height, and production efficiency is low.
For example, chinese patent publication (announcement) No. CN212821964U discloses a round steel bending machine, which is provided with a groove, a rotor, a rectangular frame, a protective cover and the like, and is bent by the motion of a bending column, and the round steel is prevented from being separated from the protective cover and the groove, popping up and accidentally injuring workers, so as to protect the workers. However, the bending machine has the problems of sliding friction with the surface of a female die during bending forming, difficult demoulding and the like.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a cylindrical steel bending device.
The invention also provides a working method of the cylindrical steel bending device.
The technical scheme of the invention is as follows:
a cylindrical steel bending device comprises an oil cylinder horizontally arranged on a base; a piston rod of the oil cylinder is connected with a Y-shaped connecting seat; a bending top column is arranged at the central line position of the front side of the Y-shaped connecting seat; c-shaped positioning dies are symmetrically arranged on two end branches of the Y-shaped connecting seat, and the C-shaped positioning dies are rotationally arranged on the Y-shaped connecting seat; the outer side end of the C-shaped positioning die is provided with a rotatable forming wheel; the inner side and the outer side of the C-shaped positioning die are respectively provided with an inner side positioning block and an outer side positioning block.
In the machining process, one end of the C-shaped positioning die is stressed, the other end of the C-shaped positioning die rotates inwards, when the top end of the bent cylindrical steel props against the tail end of the C-shaped positioning die, the C-shaped positioning die extrudes the cylindrical steel through the lever action to perform a closing action, and springback of the bent cylindrical steel is prevented; in addition, due to the rotating arrangement of the C-shaped positioning die, the C-shaped positioning die can rotate reversely after the processing is finished, and the special C-shaped design can solve the problem of difficult demoulding; the design of the C-shaped positioning die is one of the important innovation points of the invention.
The inner side positioning block and the outer side positioning block play a limiting role, and excessive transverse horizontal movement of the C-shaped positioning die after stress is prevented.
The forming wheel can perform positioning and guiding functions on the cylindrical steel through rotation, the defects of distortion, scratch and the like caused by sliding friction between the cylindrical steel and the surface of the forming wheel during forming are eliminated, and the strength and the appearance of a workpiece are effectively improved.
Preferably, the bottom of the bending top column is provided with a coil panel, and an electromagnetic coil is arranged in the coil panel. Eddy current is generated inside the cylindrical steel through the electromagnetic coil, and the eddy current generates heat; the heating mode of indirect heating in the traditional fire yeast processing process is changed; the eddy heat generation is the simultaneous heat generation inside and outside, the heating is uniform, and the traditional heat conduction heating mode causes the temperature difference inside and outside the steel; the eddy heat generation has high heating efficiency, and more importantly, the fire yeast effect is good, the quality of fire yeast parts is good, and the fire yeast effect is improved; in addition, the bending top column can also be influenced by the electromagnetic coil to generate heat, and the cylindrical steel material can be heated in a heat conduction mode, so that the heating efficiency is further improved. In addition, the coil panel also plays a role in positioning the columnar steel in the vertical direction.
Preferably, the bending top pillar is arranged on a bending top pillar bottom plate, the bending top pillar bottom plate is fixed on a bottom plate cross beam, and the bottom plate cross beam is arranged on the base in a sliding mode along the vertical direction; the height of the bottom plate cross beam in the vertical direction is adjusted through a vertically arranged vertical oil cylinder.
Preferably, the outer circumference of the forming wheel is provided with a groove matched with the cylindrical steel. The shape and the size of the groove are matched with those of cylindrical steel to be processed, the contact area between the steel and the forming wheel is increased while the limiting effect is achieved, the rotating effect is improved, and the sliding friction probability is reduced.
Preferably, the forming wheel is connected with the C-shaped positioning die through a size pin shaft; the C-shaped positioning die, the inner side positioning block and the outer side positioning block are all connected with the Y-shaped connecting seat through angle pin shafts. The corresponding forming wheel can be replaced according to the diameter size of the cylindrical steel, the corresponding C-shaped positioning die and the corresponding positioning block can be selected according to the bending angle of the steel, and the C-shaped positioning die and the C-shaped positioning block are convenient to detach and replace by adopting a pin shaft connection mode.
The working method of the cylindrical steel bending device comprises the following steps:
1) selecting a corresponding forming wheel according to the diameter of the cylindrical steel; selecting a corresponding C-shaped positioning die, an inner side positioning block and an outer side positioning block according to the bending angle of the cylindrical steel;
2) the cylindrical steel is placed between the forming wheel and the bending top column, the oil cylinder is started to clamp the cylindrical steel, and after the forming wheel is attached to the cylindrical steel, the electromagnetic coil in the coil panel starts to be heated continuously; the oil cylinder continues to push the Y-shaped connecting seat to move forwards, and the forming wheel is matched with the bending top column to press the cylindrical steel to perform bending action;
3) one end of the forming wheel is stressed, the tail end of the C-shaped positioning die rotates towards the inner side, when the cylindrical steel pushes the tail end of the C-shaped positioning die, the oil cylinder continues to push the Y-shaped connecting seat to move forwards, the tail end of the C-shaped positioning die is subjected to backward acting force of the cylindrical steel, the head end of the C-shaped positioning die generates inward extrusion force under the action of a lever, and the forming wheel further extrudes the round steel to finish the closing-in action;
4) and finishing the heating action of the electromagnetic coil and finishing the bending of the cylindrical steel.
The invention has the beneficial effects that:
1. according to the cylindrical steel bending device, the positioning and guiding effects are realized on the cylindrical steel forming through the rotation of the forming wheel, the defects of distortion, scratch and the like caused by sliding friction between the cylindrical steel and the surface of the forming wheel during forming are eliminated, and the strength and the appearance of a workpiece are effectively improved;
2. the cylindrical steel bending device provided by the invention can replace the forming assembly according to the size of the processed cylindrical steel, is convenient to disassemble and replace, and has high universality.
Drawings
FIG. 1 is a schematic structural view of a cylindrical steel bending apparatus according to the present invention;
FIG. 2 is a state diagram of the cylindrical steel bending apparatus according to the present invention before round steel is processed;
FIG. 3 is a state diagram of the cylindrical steel bending apparatus according to the present invention after machining round steel;
FIG. 4 is a schematic structural view of a C-shaped positioning die according to the present invention;
FIG. 5 is a schematic view of the internal structure of the cylindrical steel bending apparatus according to the present invention;
FIG. 6 is a view showing an internal state of the bending apparatus for a cylindrical steel material according to the present invention when the cylindrical steel material is formed;
the coil disc forming machine comprises a base 1, a base 2, an oil cylinder 3, a Y-shaped connecting seat 4, an inner side positioning block 5, an angle pin shaft 6, a size pin shaft 7, an outer side positioning block 8, a C-shaped positioning die 9, a forming wheel 10, a bending top column 11, a bending top column bottom plate 12, a bottom plate cross beam 13 and a coil disc.
Detailed Description
The invention is further described below, but not limited thereto, with reference to the following examples and the accompanying drawings.
Example 1
As shown in fig. 1, 4 and 5.
A cylindrical steel bending device comprises an oil cylinder 2 horizontally arranged on a base 1; a piston rod of the oil cylinder 2 is connected with a Y-shaped connecting seat 3; a bent top column 10 is arranged at the front center line of the Y-shaped connecting seat 3; c-shaped positioning dies 8 are symmetrically arranged on two end branches of the Y-shaped connecting seat 3, and the C-shaped positioning dies 8 are rotatably arranged on the Y-shaped connecting seat 3; the outer side end of the C-shaped positioning die 8 is provided with a rotatable forming wheel 9; the inner side and the outer side of the C-shaped positioning die 8 are respectively provided with an inner side positioning block 4 and an outer side positioning block 7.
In the processing process, one end of the C-shaped positioning die 8 is stressed, the other end of the C-shaped positioning die 8 rotates inwards, when the top end of the bent cylindrical steel props against the tail end of the C-shaped positioning die 8, the C-shaped positioning die 8 extrudes the cylindrical steel through the lever action to perform a closing action, and springback of the bent cylindrical steel is prevented; the design of the C-shaped positioning die 8 is one of the important innovative points of the present invention.
The inner side positioning block 4 and the outer side positioning block 7 play a limiting role, and the C-shaped positioning die 8 is prevented from excessive horizontal movement after being stressed.
The forming wheel 9 can perform positioning and guiding functions on the cylindrical steel forming through rotation, the defects that the cylindrical steel is distorted, scratched and the like due to sliding friction with the forming wheel surface 9 during forming are overcome, and the strength and the appearance of a workpiece are effectively improved.
Example 2
The device for bending a columnar steel material according to embodiment 1, further comprising a coil panel 13 provided at a bottom of the bending top pole 10, wherein an electromagnetic coil is provided in the coil panel 13. Eddy current is generated inside the cylindrical steel through the electromagnetic coil, and the eddy current generates heat; the heating mode of indirect heating in the traditional fire yeast processing process is changed; the eddy heat generation is the simultaneous heat generation inside and outside, the heating is uniform, and the traditional heat conduction heating mode causes the temperature difference inside and outside the steel; the eddy heat generation has high heating efficiency, and more importantly, the fire yeast effect is good, the quality of fire yeast parts is good, and the fire yeast effect is improved; in addition, the bending top pillar 10 is also affected by the electromagnetic coil to generate heat, and the cylindrical steel material can be heated in a heat conduction mode, so that the heating efficiency is further improved. In addition, the coil panel 13 also plays a role in positioning the columnar steel in the vertical direction.
Example 3
According to the cylindrical steel bending device in embodiment 1, further, the bending top pillar 10 is arranged on a bending top pillar bottom plate 11, the bending top pillar bottom plate 11 is fixed on a bottom plate cross beam 12, and the bottom plate cross beam 12 is arranged on the base 1 in a sliding manner along the vertical direction; the height of the floor beam 12 in the vertical direction is adjusted by a vertically arranged vertical cylinder. Specifically, be provided with on base 1 and supply bottom plate crossbeam 12 along the gliding slide rail of vertical direction, through the flexible height of adjusting the fore-set 11 in vertical direction of bending of vertical cylinder, the machining dimension scope of its adaptation of bigger improvement.
Example 4
The cylindrical steel material bending device according to embodiment 1, further, a groove matched with the cylindrical steel material is provided on an outer circumference of the forming wheel 9. The shape and the size of the groove are matched with those of cylindrical steel to be processed, the contact area between the steel and the forming wheel 9 is increased while the limiting effect is achieved, the rotating effect is improved, and the sliding friction probability is reduced.
Example 5
According to the cylindrical steel bending device in embodiment 1, further, a forming wheel 9 is connected with a C-shaped positioning die 8 through a size pin 6; the C-shaped positioning die 8, the inner side positioning block 4 and the outer side positioning block 7 are all connected with the Y-shaped connecting seat 3 through an angle pin shaft 5. The corresponding forming wheel 9 can be replaced according to the diameter size of the cylindrical steel, the corresponding C-shaped positioning die 8 and the corresponding positioning block can be selected according to the bending angle of the steel, and the pin shaft connection mode is adopted to facilitate the disassembly and replacement.
Example 6
As shown in fig. 2, 3 and 6.
A method for operating a cylindrical steel product bending apparatus as described in embodiments 1-5, comprising the steps of:
1) selecting a corresponding forming wheel 9 according to the diameter of the cylindrical steel; selecting a corresponding C-shaped positioning die 8, an inner side positioning block 4 and an outer side positioning block 7 according to the bending angle of the cylindrical steel;
2) the cylindrical steel is placed between the forming wheel 9 and the bending top column 10, the oil cylinder 2 is started to clamp the cylindrical steel, and after the forming wheel 9 is attached to the cylindrical steel, the electromagnetic coil in the coil panel 13 starts to be heated continuously; the oil cylinder 2 continues to push the Y-shaped connecting seat 3 to move forwards, and the forming wheel 9 is matched with the bending top column 10 to press the cylindrical steel to perform bending action;
3) one end of the forming wheel 9 is stressed, the tail end of the C-shaped positioning die 8 rotates towards the inner side, when the cylindrical steel pushes against the tail end of the C-shaped positioning die 8, the oil cylinder 2 continues to push the Y-shaped connecting seat 3 to move forwards, the tail end of the C-shaped positioning die 8 is subjected to backward acting force of the cylindrical steel, the head end of the C-shaped positioning die 8 generates inward extrusion force under the action of a lever, and the round steel is further extruded through the forming wheel 9 to finish the closing-in action;
4) and finishing the heating action of the electromagnetic coil and finishing the bending of the cylindrical steel.
Claims (6)
1. A cylindrical steel bending device is characterized by comprising an oil cylinder horizontally arranged on a base; a piston rod of the oil cylinder is connected with a Y-shaped connecting seat; a bending top column is arranged at the central line position of the front side of the Y-shaped connecting seat; c-shaped positioning dies are symmetrically arranged on two end branches of the Y-shaped connecting seat, and the C-shaped positioning dies are rotationally arranged on the Y-shaped connecting seat; a rotatable forming wheel is arranged on the outer side of the C-shaped positioning die; the inner side and the outer side of the C-shaped positioning die are respectively provided with an inner side positioning block and an outer side positioning block.
2. The cylindrical steel bending apparatus according to claim 1, wherein a coil disc is provided at a bottom of the bending top pillar, and an electromagnetic coil is provided in the coil disc.
3. The cylindrical steel bending device according to claim 1, wherein the bending top pillar is arranged on a bending top pillar base plate, the bending top pillar base plate is fixed on a base plate cross beam, and the base plate cross beam is arranged on the base in a sliding manner along a vertical direction; the height of the bottom plate cross beam in the vertical direction is adjusted through a vertically arranged vertical oil cylinder.
4. The cylindrical steel bending apparatus according to claim 1, wherein the forming wheel is provided with a groove on an outer circumference thereof for engaging the cylindrical steel.
5. The cylindrical steel bending apparatus according to claim 1, wherein the forming wheel is connected to the C-shaped positioning die by a dimensional pin; the C-shaped positioning die, the inner side positioning block and the outer side positioning block are all connected with the Y-shaped connecting seat through angle pin shafts.
6. A method of operating a cylindrical steel bending apparatus according to any one of claims 1 to 5, comprising the steps of:
1) selecting a corresponding forming wheel according to the diameter of the cylindrical steel; selecting a corresponding C-shaped positioning die, an inner side positioning block and an outer side positioning block according to the bending angle of the cylindrical steel;
2) the cylindrical steel is placed between the forming wheel and the bending top column, the oil cylinder is started to clamp the cylindrical steel, and after the forming wheel is attached to the cylindrical steel, the electromagnetic coil in the coil panel starts to be heated continuously; the oil cylinder continues to push the Y-shaped connecting seat to move forwards, and the forming wheel is matched with the bending top column to press the cylindrical steel to perform bending action;
3) one end of the forming wheel is stressed, the tail end of the C-shaped positioning die rotates towards the inner side, when the cylindrical steel pushes the tail end of the C-shaped positioning die, the oil cylinder continues to push the Y-shaped connecting seat to move forwards, the tail end of the C-shaped positioning die is subjected to backward acting force of the cylindrical steel, the head end of the C-shaped positioning die generates inward extrusion force under the action of a lever, and the forming wheel further extrudes the round steel to finish the closing-in action;
4) and finishing the heating action of the electromagnetic coil and finishing the bending of the cylindrical steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110940525.3A CN113617897A (en) | 2021-08-17 | 2021-08-17 | Cylindrical steel bending device and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110940525.3A CN113617897A (en) | 2021-08-17 | 2021-08-17 | Cylindrical steel bending device and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113617897A true CN113617897A (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110940525.3A Pending CN113617897A (en) | 2021-08-17 | 2021-08-17 | Cylindrical steel bending device and working method thereof |
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Citations (18)
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| KR20080040473A (en) * | 2006-11-03 | 2008-05-08 | 염택상 | Forming equipment of steel pipe pillar |
| CN102699217A (en) * | 2012-05-24 | 2012-10-03 | 青岛华东工程机械有限公司 | Device for rounding and slotting housing of water heater |
| CN104139099A (en) * | 2013-08-08 | 2014-11-12 | 河南卫华重型机械股份有限公司 | Plate bending forming mold |
| CN104942099A (en) * | 2015-05-26 | 2015-09-30 | 德清铭泰户外用品有限公司 | Unilateral electric heat pipe bending machine |
| CN204685762U (en) * | 2015-05-26 | 2015-10-07 | 山东玲珑机电有限公司 | A kind of steel pipe automatic hydraulic apparatus for bending |
| CN106493203A (en) * | 2015-09-07 | 2017-03-15 | 天津嘉泰盈顺健身器材有限公司 | A kind of steel pipe bending device with Electromagnetic Heating function |
| CN107855387A (en) * | 2017-12-26 | 2018-03-30 | 淮安智品企业管理有限公司 | One kind can work continuously ground multi-curvature bending machine |
| CN107999632A (en) * | 2017-12-29 | 2018-05-08 | 重庆鹏林钢结构有限责任公司 | Press machine |
| CN109396266A (en) * | 2018-12-04 | 2019-03-01 | 金马工业集团股份有限公司 | A kind of blocking depth Bending Mould |
| CN209613990U (en) * | 2019-03-14 | 2019-11-12 | 安徽开乐专用车辆股份有限公司 | A kind of round steel rolling forging die |
| CN209697849U (en) * | 2019-04-09 | 2019-11-29 | 耀盛万丰电子科技(昆山)有限公司 | A kind of double swing block type bending moulds |
| CN209849682U (en) * | 2019-03-11 | 2019-12-27 | 苏州杰悦五金机械有限公司 | Anti-rebound forming die |
| CN210450571U (en) * | 2019-05-23 | 2020-05-05 | 石家庄工业泵厂有限公司 | Cold bending die with automatic discharging mechanism |
| CN211965711U (en) * | 2020-03-25 | 2020-11-20 | 山东中济鲁源机械有限公司 | Bending forming structure for numerical control steel bar hoop bending machine |
| CN212042301U (en) * | 2020-01-15 | 2020-12-01 | 广州市环境卫生机械设备厂有限公司 | Adjustable roller type bending die for round steel |
| CN212442849U (en) * | 2019-12-30 | 2021-02-02 | 江苏新迈机械有限公司 | Anti-rebound bending die |
| CN213856462U (en) * | 2020-12-01 | 2021-08-03 | 展阔电子科技(苏州)有限公司 | Crease-free bending die |
-
2021
- 2021-08-17 CN CN202110940525.3A patent/CN113617897A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08318322A (en) * | 1995-05-29 | 1996-12-03 | Yuji Otsubo | Reinforcing steel supporting column for reinforcing steel bending machine |
| KR20080040473A (en) * | 2006-11-03 | 2008-05-08 | 염택상 | Forming equipment of steel pipe pillar |
| CN102699217A (en) * | 2012-05-24 | 2012-10-03 | 青岛华东工程机械有限公司 | Device for rounding and slotting housing of water heater |
| CN104139099A (en) * | 2013-08-08 | 2014-11-12 | 河南卫华重型机械股份有限公司 | Plate bending forming mold |
| CN104942099A (en) * | 2015-05-26 | 2015-09-30 | 德清铭泰户外用品有限公司 | Unilateral electric heat pipe bending machine |
| CN204685762U (en) * | 2015-05-26 | 2015-10-07 | 山东玲珑机电有限公司 | A kind of steel pipe automatic hydraulic apparatus for bending |
| CN106493203A (en) * | 2015-09-07 | 2017-03-15 | 天津嘉泰盈顺健身器材有限公司 | A kind of steel pipe bending device with Electromagnetic Heating function |
| CN107855387A (en) * | 2017-12-26 | 2018-03-30 | 淮安智品企业管理有限公司 | One kind can work continuously ground multi-curvature bending machine |
| CN107999632A (en) * | 2017-12-29 | 2018-05-08 | 重庆鹏林钢结构有限责任公司 | Press machine |
| CN109396266A (en) * | 2018-12-04 | 2019-03-01 | 金马工业集团股份有限公司 | A kind of blocking depth Bending Mould |
| CN209849682U (en) * | 2019-03-11 | 2019-12-27 | 苏州杰悦五金机械有限公司 | Anti-rebound forming die |
| CN209613990U (en) * | 2019-03-14 | 2019-11-12 | 安徽开乐专用车辆股份有限公司 | A kind of round steel rolling forging die |
| CN209697849U (en) * | 2019-04-09 | 2019-11-29 | 耀盛万丰电子科技(昆山)有限公司 | A kind of double swing block type bending moulds |
| CN210450571U (en) * | 2019-05-23 | 2020-05-05 | 石家庄工业泵厂有限公司 | Cold bending die with automatic discharging mechanism |
| CN212442849U (en) * | 2019-12-30 | 2021-02-02 | 江苏新迈机械有限公司 | Anti-rebound bending die |
| CN212042301U (en) * | 2020-01-15 | 2020-12-01 | 广州市环境卫生机械设备厂有限公司 | Adjustable roller type bending die for round steel |
| CN211965711U (en) * | 2020-03-25 | 2020-11-20 | 山东中济鲁源机械有限公司 | Bending forming structure for numerical control steel bar hoop bending machine |
| CN213856462U (en) * | 2020-12-01 | 2021-08-03 | 展阔电子科技(苏州)有限公司 | Crease-free bending die |
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