CN112547868B - Chair metal support energy-saving pipe bender - Google Patents
Chair metal support energy-saving pipe bender Download PDFInfo
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- CN112547868B CN112547868B CN202011440483.9A CN202011440483A CN112547868B CN 112547868 B CN112547868 B CN 112547868B CN 202011440483 A CN202011440483 A CN 202011440483A CN 112547868 B CN112547868 B CN 112547868B
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- 239000002184 metal Substances 0.000 title claims abstract description 26
- 238000004804 winding Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 abstract description 9
- 238000007493 shaping process Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process 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
- 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
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/04—Movable or exchangeable mountings for tools
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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
- 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
- B21D53/00—Making other particular articles
- B21D53/36—Making other particular articles clips, clamps, or like fastening or attaching devices, e.g. for electric installation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Special Chairs (AREA)
Abstract
The invention belongs to the field of pipe bending machines, and particularly relates to an energy-saving pipe bending machine for a metal bracket of a chair, which comprises a box body, wherein a rotary table is rotatably arranged at the top of the box body, a positioning column is fixedly arranged at the top of the rotary table, a fixed seat is fixedly arranged at the top of the box body, a U-shaped seat is fixedly arranged at the top of the rotary table, two first holes which are symmetrically arranged are formed in the inner wall of one side of the U-shaped seat, a movable plate is slidably arranged in the first holes, the inner walls of the two sides of the U-shaped seat are rotatably arranged with a screw rod, one end of the screw rod extends to the outer side of the U-shaped seat and is fixedly provided with a knob, the movable plate is sleeved on the screw rod in a threaded manner, one side of the movable plate is hinged with one end of a push rod, and the other ends of the two push rods are hinged with a same forming column. The pipe bending device is reasonable in design, simple in structure and convenient to operate, the forming column is convenient to adjust, the applicability of the forming column is high, the pipe to be formed is convenient to fix, and the pipe to be formed is convenient to bend.
Description
Technical Field
The invention relates to the technical field of pipe bending machines, in particular to an energy-saving pipe bending machine for a chair metal bracket.
Background
The chair is a daily-life furniture, a seat with a backrest and armrests. Modern chairs pursue beautiful fashion, some chairs no longer only are seats and endow more science and technology, make the mankind more convenient, some chairs on the market, its chair frame is the metal support that a connecting pipe constitutes, add man-hour to the metal support for the chair, need treat the shaping pipe fitting and bend, consequently, need be with the help of the bending machine, and current bending machine is when using, when treating the diameter of shaping pipe fitting different, the shaping post is adjusted invariantly this moment, and it is fixed troublesome to treat the shaping pipe fitting, there is the problem that is not convenient for treat the shaping pipe fitting and fix, and be not convenient for adjust the shaping post, therefore we have provided an energy-conserving bending machine of chair metal support and have been used for solving above-mentioned problem.
Disclosure of Invention
The invention aims to solve the defects that a pipe fitting to be formed is inconvenient to fix and a forming column is inconvenient to adjust in the prior art, and provides an energy-saving pipe bender for a metal bracket of a chair.
In order to achieve the purpose, the invention adopts the following technical scheme:
an energy-saving pipe bender for a metal bracket of a chair comprises a box body, wherein the top of the box body is rotatably provided with a turntable, the top of the turntable is fixedly provided with a positioning column, the top of the box body is fixedly provided with a fixed seat, the top of the turntable is fixedly provided with a U-shaped seat, one inner wall of one side of the U-shaped seat is provided with two first holes which are symmetrically arranged, a movable plate is slidably arranged in the first holes, the inner walls of two sides of the U-shaped seat are rotatably provided with the same screw rod, one end of the screw rod extends to the outer side of the U-shaped seat and is fixedly provided with a knob, the movable plate is sleeved on the screw rod in a threaded manner, one side of the movable plate is hinged with one end of a push rod, the other ends of the two push rods are hinged with the same forming column, the forming column is matched with the positioning column, the same pipe to be formed is arranged between the forming column and the positioning column, one side of the fixed seat is provided with a placing hole, and the pipe to be formed is matched with the placing hole, first grooves are formed in the inner walls of the two sides of the placing hole, first plates are slidably mounted in the first grooves, one side, close to each other, of each of the two first plates is fixedly provided with the same first arc-shaped plate, the inner wall of the top of the placing hole is provided with a threaded hole, a fixing bolt is mounted in the threaded hole, the bottom end of the fixing bolt is rotatably mounted on the first arc-shaped plate, the top end of the fixing bolt is fixedly provided with a rotating plate, the inner walls of the two sides of the first groove are fixedly provided with first winding rods, and the top of each first plate is fixedly provided with two symmetrically arranged steel wire ropes;
the utility model discloses a wire rope, including placing hole, standing groove, sliding tray, slide bar, fixed mounting, reset spring, fixed mounting has a second arc, the standing groove has all been seted up on the both sides inner wall of placing the hole, the sliding tray has been seted up on one side inner wall of standing groove, slidable mounting has the slide bar in the sliding tray, the one end of slide bar extends to in the standing groove and fixed mounting has the second arc, the spread groove has been seted up on the top inner wall of sliding tray, the top fixed mounting of slide bar has the riser, one side fixed mounting of riser has a plurality of reset spring's one end, reset spring's other end fixed mounting is on one side inner wall of spread groove, fixed mounting has the second wire winding pole on the both sides inner wall of spread groove, wire rope's the other end is around first wire winding pole and second wire winding pole and fixed mounting on the riser.
Preferably, the same stabilizer bar is fixedly installed on the inner walls of the two sides of the first hole, and the movable plate is slidably sleeved on the stabilizer bar.
Preferably, the screw rod is provided with two external threads with opposite rotation directions, the moving plate is provided with a moving hole, the inner wall of the moving hole is provided with an internal thread, and the external threads are meshed with the internal threads.
Preferably, the top of the turntable is provided with a sliding groove, the bottom end of the forming column is fixedly provided with a sliding seat, and the sliding seat is connected with the corresponding sliding groove in a sliding manner.
Preferably, moving grooves are formed in both sides of the first groove, moving blocks are fixedly mounted on both sides of the first plate, and the moving blocks are connected with the corresponding moving grooves in a sliding mode.
Preferably, a rotating groove is formed in the top of the first arc-shaped plate, and the bottom end of the fixing bolt is rotatably installed in the rotating groove.
Preferably, the inner walls of the two sides of the sliding groove are provided with grooves, the two sides of the sliding rod are fixedly provided with connecting seats, and the connecting seats are in sliding connection with the corresponding grooves.
Preferably, the top of the first plate is provided with a second hole, and the steel wire rope penetrates through the second hole.
According to the chair metal bracket energy-saving pipe bender, when a to-be-formed pipe fitting of a chair metal bracket is bent, the to-be-formed pipe fitting is placed in a placing hole, the to-be-formed pipe fitting is located between a positioning column and a forming column, a knob can drive a lead screw to rotate by rotating the knob, and two external threads with opposite rotation directions are arranged on the lead screw, so that a rotating moving plate of the lead screw moves, the moving plate moves to drive a push rod to move, the two push rods can drive the forming column to move, the forming column is in contact with the to-be-formed pipe fitting, and the to-be-formed pipe fitting can be preliminarily positioned;
the rotating plate can drive the fixing bolt to rotate, the fixing bolt can move while rotating under the action of the threaded hole, the first arc-shaped plate can be driven to move by the movement of the fixing bolt, the first arc-shaped plate can drive the first plate to move, the pipe fitting to be molded can be fixed in the vertical direction by the movement of the first arc-shaped plate, and the pipe fitting to be molded can be preliminarily fixed;
when the first board removes, the removal of first board can drive wire rope and remove, wire rope can drive the riser and remove, the riser can drive the slide bar and remove and tensile reset spring, the removal of slide bar can drive the second arc and remove, the second arc that is can treat the shaping pipe fitting and fix on the horizontal direction, thereby can treat the shaping pipe fitting and carry out firm fixed, through starting the carousel, the carousel can drive the shaping post and rotate, the rotation through the shaping post can be treated the shaping pipe fitting and bend.
The pipe bending device is reasonable in design, simple in structure and convenient to operate, the forming column is convenient to adjust, the applicability of the forming column is high, the pipe to be formed is convenient to fix, and the pipe to be formed is convenient to bend.
Drawings
Fig. 1 is a schematic top view of an energy-saving pipe bender for chair metal brackets according to the present invention;
FIG. 2 is a schematic structural diagram of a portion A of an energy-saving pipe bender for chair metal brackets according to the present invention;
FIG. 3 is a schematic side view of a fixing base of the chair metal bracket energy-saving pipe bender according to the present invention;
fig. 4 is a schematic structural diagram of a part B of an energy-saving pipe bender for chair metal brackets according to the present invention;
fig. 5 is a schematic structural diagram of part C of an energy-saving pipe bender for a metal bracket of a chair according to the present invention.
In the figure: 1. a box body; 2. a turntable; 3. a positioning column; 4. a fixed seat; 5. a pipe fitting to be molded; 6. a U-shaped seat; 7. a first hole; 8. moving the plate; 9. a screw rod; 10. a knob; 11. a push rod; 12. forming a column; 13. a first groove; 14. a first plate; 15. a first arc-shaped plate; 16. a threaded hole; 17. fixing the bolt; 18. rotating the plate; 19. a first winding rod; 20. a wire rope; 21. a placement groove; 22. a sliding groove; 23. a slide bar; 24. a second arc-shaped plate; 25. connecting grooves; 26. a vertical plate; 27. a return spring; 28. a second winding rod; 29. placing the holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an energy-saving pipe bender for a chair metal bracket comprises a box body 1, a rotary table 2 is rotatably mounted on the top of the box body 1, a positioning column 3 is fixedly mounted on the top of the rotary table 2, a fixed seat 4 is fixedly mounted on the top of the box body 1, a U-shaped seat 6 is fixedly mounted on the top of the rotary table 2, two first holes 7 which are symmetrically arranged are formed in the inner wall of one side of the U-shaped seat 6, a movable plate 8 is slidably mounted in the first holes 7, the same screw rod 9 is rotatably mounted on the inner walls of two sides of the U-shaped seat 6, one end of the screw rod 9 extends to the outer side of the U-shaped seat 6 and is fixedly provided with a knob 10, the movable plate 8 is sleeved on the screw rod 9 in a threaded manner, one end of a push rod 11 is hinged to one side of the movable plate 8, the other ends of the two push rods 11 are hinged to the same forming column 12, the forming column 12 is matched with the positioning column 3, the same pipe 5 to be formed is arranged between the forming column 12 and the positioning column 3, a placing hole 29 is formed in one side of the fixing seat 4, the pipe 5 to be formed is matched with the placing hole 29, first grooves 13 are formed in inner walls of two sides of the placing hole 29, first plates 14 are slidably mounted in the first grooves 13, the same first arc-shaped plate 15 is fixedly mounted on one side, close to each other, of the two first plates 14, a threaded hole 16 is formed in an inner wall of the top of the placing hole 29, a fixing bolt 17 is mounted in the threaded hole 16 through threads, the bottom end of the fixing bolt 17 is rotatably mounted on the first arc-shaped plate 15, a rotating plate 18 is fixedly mounted at the top end of the fixing bolt 17, first winding rods 19 are fixedly mounted on inner walls of two sides of the first groove 13, and two steel wire ropes 20 which are symmetrically arranged are fixedly mounted at the top of the first plates 14;
standing hole 29's both sides inner wall has all been seted up standing groove 21, sliding tray 22 has been seted up on one side inner wall of standing groove 21, slidable mounting has slide bar 23 in sliding tray 22, the one end of slide bar 23 extends to in standing groove 21 and fixed mounting has second arc 24, connecting groove 25 has been seted up on the top inner wall of slide bar 22, the top fixed mounting of slide bar 23 has riser 26, one side fixed mounting of riser 26 has a plurality of reset spring 27's one end, reset spring 27's other end fixed mounting is on one side inner wall of connecting groove 25, fixed mounting has second wire winding rod 28 on the both sides inner wall of connecting groove 25, wire rope 20's the other end is around first wire winding rod 19 and second wire winding rod 28 and fixed mounting on riser 26.
In this embodiment, the same stabilizer bar is fixedly mounted on the inner walls of the two sides of the first hole 7, and the moving plate 8 is slidably sleeved on the stabilizer bar.
In this embodiment, the screw rod 9 is provided with two external threads with opposite rotation directions, the moving plate 8 is provided with a moving hole, the inner wall of the moving hole is provided with an internal thread, and the external threads are meshed with the internal threads.
In this embodiment, the top of the turntable 2 is provided with a sliding groove, the bottom end of the forming column 12 is fixedly provided with a sliding seat, and the sliding seat is slidably connected with the corresponding sliding groove.
In this embodiment, the two sides of the first groove 13 are both provided with a moving groove, and the two sides of the first plate 14 are both fixedly provided with a moving block, and the moving blocks are slidably connected with the corresponding moving grooves.
In this embodiment, the top of the first arc-shaped plate 15 is provided with a rotating groove, and the bottom end of the fixing bolt 17 is rotatably installed in the rotating groove.
In this embodiment, the inner walls of the two sides of the sliding groove 22 are both provided with a groove, and the two sides of the sliding rod 23 are both fixedly provided with a connecting seat, and the connecting seat is slidably connected with the corresponding groove.
In this embodiment, a second hole is formed at the top of the first plate 14, and the steel cable 20 passes through the second hole.
In the invention, when the to-be-formed pipe 5 of the metal bracket for the chair is bent, the to-be-formed pipe 5 is firstly placed in the placing hole 29, the to-be-formed pipe 5 is positioned between the positioning column 3 and the forming column 12, the knob 10 can drive the screw rod 9 to rotate by rotating the knob 10, and as the screw rod 9 is provided with two external threads with opposite rotation directions, the rotating moving plate 8 of the screw rod 9 moves, the moving plate 8 moves to drive the push rods 11 to move, the two push rods 11 can drive the forming column 12 to move, so that the forming column 12 is contacted with the to-be-formed pipe 5, and the to-be-formed pipe 5 can be preliminarily positioned;
through rotating the rotating plate 18, the rotating plate 18 can drive the fixing bolt 17 to rotate, the fixing bolt 17 can rotate and move under the action of the threaded hole 16, the first arc-shaped plate 15 can be driven to move by the movement of the fixing bolt 17, the first arc-shaped plate 14 can be driven to move by the first arc-shaped plate 15, the pipe 5 to be molded can be fixed in the vertical direction by the movement of the first arc-shaped plate 15, and the pipe 5 to be molded can be preliminarily fixed;
when first board 14 removes, first board 14's removal can drive wire rope 20 and remove, wire rope 20 can drive riser 26 and remove, riser 26 can drive slide bar 23 and remove and tensile reset spring 27, slide bar 23's removal can drive second arc 24 and remove, second arc 24 that is can treat shaping pipe 5 and fix on the horizontal direction, thereby can treat shaping pipe 5 and carry out the fixing that stabilizes, through starting carousel 2, carousel 2 can drive shaping post 12 and rotate, rotation through shaping post 12 can be treated shaping pipe 5 and bend.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (8)
1. An energy-saving pipe bender for metal supports of chairs comprises a box body (1) and is characterized in that a turntable (2) is rotatably mounted at the top of the box body (1), a positioning column (3) is fixedly mounted at the top of the turntable (2), a fixed seat (4) is fixedly mounted at the top of the box body (1), a U-shaped seat (6) is fixedly mounted at the top of the turntable (2), two first holes (7) which are symmetrically arranged are formed in the inner wall of one side of the U-shaped seat (6), a movable plate (8) is slidably mounted in the first holes (7), the inner walls of two sides of the U-shaped seat (6) are rotatably mounted with a same lead screw (9), one end of the lead screw (9) extends to the outer side of the U-shaped seat (6) and is fixedly mounted with a knob (10), the movable plate (8) is sleeved on the lead screw (9) in a threaded manner, one side of the movable plate (8) is hinged with one end of a push rod (11), the other ends of the two push rods (11) are hinged with the same forming column (12), the forming column (12) is matched with the positioning column (3), the same pipe fitting (5) to be formed is arranged between the forming column (12) and the positioning column (3), a placing hole (29) is formed in one side of the fixing seat (4), the pipe fitting (5) to be formed is matched with the placing hole (29), first grooves (13) are formed in the inner walls of the two sides of the placing hole (29), first plates (14) are slidably mounted in the first grooves (13), the same first arc-shaped plate (15) is fixedly mounted on the side, close to each other, of the two first plates (14), a threaded hole (16) is formed in the inner wall of the top of the placing hole (29), a fixing bolt (17) is mounted in the threaded hole (16), the bottom end of the fixing bolt (17) is rotatably mounted on the first arc-shaped plate (15), a rotating plate (18) is fixedly mounted at the top end of the fixing bolt (17), the inner walls of the two sides of the first groove (13) are fixedly provided with first winding rods (19), and the top of the first plate (14) is fixedly provided with two symmetrically arranged steel wire ropes (20);
standing groove (21) have all been seted up on the both sides inner wall of placing hole (29), sliding tray (22) have been seted up on the one side inner wall of standing groove (21), sliding tray (22) slidable mounting has slide bar (23), the one end of slide bar (23) extends to in standing groove (21) and fixed mounting has second arc (24), spread groove (25) have been seted up on the top inner wall of slide groove (22), the top fixed mounting of slide bar (23) has riser (26), one side fixed mounting of riser (26) has the one end of a plurality of reset spring (27), the other end fixed mounting of reset spring (27) is on one side inner wall of spread groove (25), fixed mounting has second wire winding rod (28) on the both sides inner wall of spread groove (25), the other end of wire rope (20) is around first wire winding rod (19) and second wire winding rod (28) and fixed mounting on riser (26).
2. The energy-saving pipe bender for metal brackets of chairs according to claim 1, characterized in that the same stabilizer bar is fixedly mounted on the inner walls of both sides of the first hole (7), and the moving plate (8) is slidably sleeved on the stabilizer bar.
3. The energy-saving pipe bender for chair metal supports according to claim 1, wherein the screw (9) is provided with two external threads with opposite rotation directions, the moving plate (8) is provided with a moving hole, the inner wall of the moving hole is provided with an internal thread, and the external threads are engaged with the internal threads.
4. The energy-saving pipe bender for chair metal supports according to claim 1, characterized in that the top of the rotary table (2) is provided with a sliding slot, the bottom end of the forming column (12) is fixedly provided with a sliding seat, and the sliding seat is slidably connected with the corresponding sliding slot.
5. The energy-saving pipe bender for chair metal supports according to claim 1, characterized in that, two sides of said first slot (13) are equipped with moving slots, two sides of said first plate (14) are fixedly equipped with moving blocks, and the moving blocks are slidably connected with the corresponding moving slots.
6. The energy-saving pipe bender for chair metal brackets according to claim 1, characterized in that the top of the first arc-shaped plate (15) is provided with a rotating slot, and the bottom end of the fixing bolt (17) is rotatably mounted in the rotating slot.
7. The energy-saving pipe bender for metal brackets of chairs according to claim 1, characterized in that the inner walls of the sliding grooves (22) are provided with grooves, and the sliding rods (23) are fixedly provided with connecting seats on both sides, and the connecting seats are slidably connected with the corresponding grooves.
8. The energy-saving pipe bender for chair metal brackets according to claim 1, characterized in that a second hole is opened on the top of the first plate (14), and the steel cable (20) passes through the second hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011440483.9A CN112547868B (en) | 2020-12-08 | 2020-12-08 | Chair metal support energy-saving pipe bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011440483.9A CN112547868B (en) | 2020-12-08 | 2020-12-08 | Chair metal support energy-saving pipe bender |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112547868A CN112547868A (en) | 2021-03-26 |
| CN112547868B true CN112547868B (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011440483.9A Active CN112547868B (en) | 2020-12-08 | 2020-12-08 | Chair metal support energy-saving pipe bender |
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| Country | Link |
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| CN (1) | CN112547868B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1235176B (en) * | 1989-01-18 | 1992-06-23 | Piegatrici Macch Elettr | UPRIGHT MOBILE SHEAR, FOLDING GROUP AND TAIL BENDING PROCEDURE. |
| KR100462982B1 (en) * | 2001-03-07 | 2004-12-23 | 비엘엠 에스.피.에이. | A bending machine for bending threadlike material such as tubes, rods, profiles or metal wire |
| CN205763124U (en) * | 2016-06-30 | 2016-12-07 | 浙江上建防护科技有限公司 | A kind of steel pipe bender |
| CN107598600A (en) * | 2017-08-11 | 2018-01-19 | 张宇 | A kind of method of precisely fixed CNC milling machine |
| CN109092949A (en) * | 2018-09-29 | 2018-12-28 | 梁多彬 | A kind of bending machine laser processing device |
| CN109719177B (en) * | 2018-12-26 | 2021-02-19 | 太仓升达机械有限公司 | Numerical control pipe bender |
| CN211161349U (en) * | 2019-07-09 | 2020-08-04 | 四平市三明换热设备制造有限公司 | Pressing bar type bright tube device |
| CN211803217U (en) * | 2020-03-04 | 2020-10-30 | 青岛主原电器有限公司 | Electric heating tube pipe bending mechanism and pipe bending equipment |
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2020
- 2020-12-08 CN CN202011440483.9A patent/CN112547868B/en active Active
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| CN112547868A (en) | 2021-03-26 |
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Denomination of invention: A chair metal bracket energy-saving pipe bending machine Effective date of registration: 20231222 Granted publication date: 20220923 Pledgee: China Co. truction Bank Corp Anji branch Pledgor: ZHEJIANG HAOGUO FURNITURE Co.,Ltd. Registration number: Y2023330003079 |