CN101862800B - Rotary machine head type wire bending equipment - Google Patents
Rotary machine head type wire bending equipment Download PDFInfo
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- CN101862800B CN101862800B CN2010101983168A CN201010198316A CN101862800B CN 101862800 B CN101862800 B CN 101862800B CN 2010101983168 A CN2010101983168 A CN 2010101983168A CN 201010198316 A CN201010198316 A CN 201010198316A CN 101862800 B CN101862800 B CN 101862800B
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Abstract
The invention discloses rotary machine head type wire bending equipment, which comprises a machine frame, a material feeding mechanism, a fixed mold seat and a bending hand mechanism, wherein the material feeding mechanism, and the fixed mold seat and the bending hand mechanism are arranged on the machine frame and are used for wire bending on wire materials. The invention is characterized in that a straightening device and a feeding device are arranged on the machine frame, the conveying end of the feeding device is connected with a rotating device, a driven gearwheel arranged on the rotating device is engaged with a driving pinion connected on the machine frame, a wheel shaft of the driving pinion is connected with a motor output shaft fixed on the machine frame for realizing motive power transmission, in addition, the end surface of the rotating device is connected with a machine head frame, the bending hand mechanism, a shearing device and a support mold are arranged on the machine head frame, the bending hand mechanism and the shearing device are matched with the support mold for realizing the bending and the shearing on the wire materials, the wire bending equipment uses a motor to output the motive power, the driving pinion drives the driven gearwheel, a rotary joint and the machine head frame to rotate, the rotation movement of the machine head frame correspondingly to the wire materials is realized, the rotary machine head type wire bending equipment is matched with the feeding mechanism to realize the continuous processing, and the equipment flexibility is improved.
Description
Technical field
The present invention relates to a kind of transformation of curved silk machine, the rotary machine head type wire bending equipment that especially can carry out wire rod bending process in the three dimensions.
Background technology
Commonly use can be in the three dimensions interior lines the curved silk machine of (pipe) material bending process as shown in Figure 1, during the bending process of the line in carrying out three dimensions (pipe) material, utilize chuck 1 to clamp an end of line (pipe) material 2 earlier; The other end is placed on the main wheel mould 3 after passing the fixed die 9 on the fixing die holder 30, utilizes fixed die 9 to carry out clamping; Curved mould 4 is close to line (pipe) material 2, the actuated element 5 drive toggling devices 6 realization bending machining that rotates to an angle, meanwhile; Feed mechanism 7 moves along guide rail 8, drives an amount of distance of line (pipe) material 2 feedings, after machining; Toggling device 6, fixed die 9 return to initial position, thereby realize the bending machining of an elbow.In three dimensions during crooked second elbow; Feed mechanism 7 rotates to an angle; Thereby drive line (pipe) material 2 with respect to the identical angle of frame 10 rotations; Then toggling device 6 rotates to an angle, and feed mechanism 7 drives an amount of distance of line (pipe) material 2 feedings simultaneously, thereby realizes line (pipe) the material bending process in the three dimensions.Its main deficiency is: (one) is because line (pipe) material is adding man-hour; Clamping is to chuck in advance; So the length of line (pipe) material has received the restriction of slide rail length, this curved silk machine all has maximum this technical parameter of feeding stroke, when the length of line (pipe) material surpasses this parameter; Normally clamping feeding needs the type that strengthens according to user's request customization lengthening.The equipment flexibility is relatively poor, manufacturing cost increases.
(2) because the essence of its feed motion is that the frame head section is fixed, wire rod relative frame, head under the drive of chuck are done rotation and axial feed motion.So before bending machining, line (pipe) material must be cut into certain-length by demand in advance, adds man-hour, by operating personnel with the line that cuts (pipe) material clamping to chuck, add the man-hour chuck and drive line (pipe) material and do rotation, axial feed motion.So just can not realize continuous processing, reduce working (machining) efficiency, increased labour intensity.What deserves to be mentioned is, the equipment configuration of part model extra automatic filling equipment, realized the automated exchanged cutter of line (pipe) material.But this mode has increased manufacturing cost greatly, the control system also becomes loaded down with trivial details.
Summary of the invention
The object of the present invention is to provide a kind of follow-on wire bending equipment structure, nationality drives the relative line of headstock (pipe) material by the whirligig on the frame and rotates, and cooperates head section, feeding partly to realize the continuous bending machining of three dimensions interior lines (pipe) material.
In order to overcome the deficiency that existing curved silk machine equipment flexibility is poor, can not realize continuous processing; The present invention provides a kind of follow-on wire bending equipment structure; Do not increase under the prerequisite of number of devices; This wire bending equipment has not only been realized continuous processing, and the bending machining length of line (pipe) material do not receive the restriction of device structure, can be at the workpiece of crooked random length.
The technical solution adopted for the present invention to solve the technical problems is: rotary machine head type wire bending equipment; Comprise that frame and rack-mounted is used for the feed mechanism of the curved silk of wire rod, fixedly die holder and toggling device; It is characterized in that: on said frame, be provided with machine straightening device and feed arrangement; The feed arrangement delivery end connects whirligig; The driven gear wheel that is arranged on this whirligig is meshed with driver pinion on being connected in frame, and the driver pinion wheel shaft links to each other with motor output shaft on being fixed in frame and realizes the power transmission; And the whirligig end face is connected with headstock, and headstock is provided with toggling device, cutter, a hold mode, toggling device and cutter cooperate a hold mode realize to wire rod bending, cut off.
Said feed arrangement comprises that one is fixed on the feeding wheel seat on the rack table; This feeding wheel seat be symmetrically distributed up and down cooperatively interact wire gripper the support wheels with drive wheels; Feeding wheel seat rear side is provided with motor; Motor links to each other with power gear, and this drives wheels through engagement realizes rotation with power gear, and the driving wheel assembly is closed and supported wheels and affect the wire rod on the drum to realize axial feed.
Be symmetrically distributed with the support wheels and driving wheels of the wire gripper that cooperatively interacts on the said feeding wheels respectively up and down, wire rod passes these support wheels and links to each other with whirligig with the driving wheels; And these driving wheels are realized rotation through being arranged on the engagement of feeding wheel seat side power gear, and the motor output shaft that said power gear is connected with feeding wheel seat rear side links to each other.
Said whirligig comprises the anchor tip that is connected with frame, and this anchor tip socket-connects through the swivel joint that a pair of taper roll bearing and center are provided with through hole, and this swivel joint also links to each other with end cap through screw; Driven gear wheel is fixed on swivel joint flange end cap inboard through back-up ring and key; Establish Sealing shield ring between said taper roll bearing and the swivel joint limiting stand, and between this two bearings, establish bearing holder (housing, cover), on its bearing holder (housing, cover), be provided with rectangular channel and through hole, this rectangular channel with its outside anchor tip on through hole on set lubricating cup corresponding; The said end cap end face that is connected with swivel joint is provided with the asbestos rubber packing ring, and inboard and frame is established a thrust bearing between joining at the end cap flange; On frame and swivel joint outer circle wall abutted surface, be provided with the felt collar oil sealing.
Said drive pinion shaft is fixed on rack table one side end face through the supported on both sides seat that is divided into it, and is provided with deep groove ball bearing in this supporting seat, and this driver pinion wheel shaft links to each other with motor through shaft coupling.
Said headstock is provided with toggling device, fixing die holder, and toggling device is provided with hydraulic cylinder and curved mould and is fixed in the motor of headstock bottom, hydraulic cylinder realization the stepping up wire rod that link to each other with curved mould; Motor drives the toggling device rotation through linking to each other with actuated element; Fixedly die holder is provided with fixed die and realizes fixing wire rod through linking to each other with set hydraulic cylinder.
As to further improvement of the present invention, this wire bending equipment headstock part also is provided with a hold mode and a cutter; Wherein, said hold mode realizes being close to wire rod through the terminal handle that links to each other of rotation and set screw mandrel; Said cutter is realized the shearing to wire rod through linking to each other with set hydraulic cylinder.
Said cutter is provided with scissors, and the wire rod exit joins in scissors termination and the headstock.
The present invention is a kind of follow-on wire bending equipment; On the feed mechanism on the frame, establish machine straightening device and feed arrangement; And between feed arrangement delivery end frame and headstock, be provided with a kind of whirligig; This whirligig and the drive pinion shaft engagement that is arranged on the frame, drive pinion shaft also links to each other and realizes the power transmission through being arranged on the frame motor output shaft; And the whirligig end face is established headstock; Headstock is provided with toggling device, fixing die holder; And through this toggling device bent wire, realize fixing to wire rod being close to wire rod through a hold mode realization through fixing die holder; Realize the shearing of wire rod through cutter, thereby realize this wire bending equipment curved silk of rotation continuously.
When rotatablely moving; Wire rod does not rotate, and power is provided by motor, passes to drive pinion shaft through shaft coupling; Thereby drive driven gear wheel rotation; Realized that headstock rotates with respect to wire rod, the essence of its feed motion is that line (pipe) material is done axial feed motion under feed wheel drives, and headstock relative line (pipe) material under the drive of drive pinion shaft rotates.
Major advantage of the present invention is: the relative line of (1) headstock (pipe) material rotates not only can realize the continuous bending process of three dimensions interior lines (pipe) material; And; Center line (pipe) material does not rotate owing to rotatablely move, and so just can realize the continuous feed of line (pipe) material, after processing a workpiece; After cutting off by cutter, just can directly carry out the bending machining of next workpiece.Do not increasing under the extras prerequisite, realizing continuous feed, processing continuously.
(2) axial feed is closed by the feed wheel assembly and supports the wheels realization, and the length of workpiece no longer receives the restriction of frame, can process the workpiece of random length under the prerequisite of adjustment structurally, and it is flexible to have improved equipment.
Description of drawings
Fig. 1 is the stereogram of the curved silk of prior art machine.
Fig. 2 is exemplary embodiments of the present invention crooked first stereogram when curved.
Fig. 3 is exemplary embodiments of the present invention crooked second stereogram when curved.
Fig. 4 is the assembling sketch map of whirligig.
Fig. 5 is the part sectioned view of drive pinion shaft shaft portion.
Among the figure: 1, chuck; 2, wire rod; 3, main wheel mould; 4, curved mould; 5, actuated element; 6, toggling device; 7, feed mechanism; 8, guide rail; 9, fixed die; 10, frame; 11, deep groove ball bearing; 12, drum; 13, drum seat; 14, straightening wheel seat; 15, straightening wheels; 16, feeding wheel seat; 17, power gear; 18, drive wheels; 19, support wheels; 20, motor; 21, anchor tip; 22, bolt; 23, driven gear wheel; 24, swivel joint; 25, headstock; 26, bolt; 27, cutter; 28, hydraulic cylinder; 29, actuated element; 30, fixing die holder; 31, motor; 32, driver pinion; 33, supporting seat; 34, motor; 35, prop up hold mode; 36, screw mandrel; 37, handle; 38, movable mould wheel; 39, hydraulic cylinder; 40, scissors; 41, key; 42, back-up ring; 43, circlip for shaft; 44, Sealing shield ring; 45, bearing holder (housing, cover); 46, through hole; 47, lubricating cup; 48, taper roll bearing; 49, felt collar oil sealing; 50, thrust bearing; 51, asbestos rubber packing ring; 52, end cap; 53, central through hole; 54, rectangular channel; 55, asbestos rubber packing ring; 56, screw; 57, hydraulic cylinder; 58, bearing (ball) cover; 59, felt collar oil sealing; 60, shaft coupling.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
As shown in Figure 2; Rotary machine head type wire bending equipment of the present invention; Comprise frame 10 and be installed in being used on the frame 10 feed mechanism 7 of the curved silk of wire rod 2, fixedly die holder 30 and toggling device 6; Wherein: as the improvement to existing structure, on said frame 10, be provided with machine straightening device and feed arrangement, the feed arrangement delivery end connects whirligig; The driven gear wheel 23 that is arranged on this whirligig is meshed with driver pinion 32 on being connected in frame 10, and driver pinion 32 wheel shafts link to each other with motor 34 output shafts on being fixed in frame 10 and realize the power transmission; And the whirligig end face is connected with headstock 25, and headstock 25 is provided with toggling device 6, cutter 27, a hold mode 35, toggling device 6 and cutter 27 cooperate a hold mode 35 realize to wire rod 2 bending, cut off.
Among Fig. 2 and Fig. 3; Machine straightening device comprises that one is fixed on the straightening wheel seat 14 on the rack table; On this straightening wheel seat 14, be evenly equipped with the straightening wheels 15 of the straightening wheel formation of corresponding matching in twos; Wire rod 2 passes these straightening wheels 15 centers and links to each other with feed arrangement, when wire rod passes through, it is carried out straightening.
As to further improvement of the present invention; The said feed arrangement of this wire bending equipment comprises that one is fixed on the feeding wheel seat 16 on frame 10 table tops; This feeding wheel seat 16 be symmetrically distributed up and down cooperatively interact wire gripper 2 support wheels 19 with drive wheels 18; Feeding wheel seat 16 rear sides are provided with motor 20, and motor 20 links to each other with power gear 17, and this drives wheels 18 through 17 engagements realize rotation with power gear; Drive wheels 18 and cooperate and support wheels 19 and affect the wire rod 2 on the drum 12, thereby realize axial feeding.
As shown in Figure 4, as core inventive point of the present invention, design a whirligig, this whirligig comprises the anchor tip 21 that is connected with frame 10, frame 10 is connected (shown in Figure 2) with anchor tip 21 in the whirligig through 8 bolts 22.This anchor tip 21 also socket-connects through the swivel joint 24 that a pair of taper roll bearing 48 and center are provided with through hole 53, and this swivel joint 24 links to each other with end cap 52 through screw 56; Driven gear wheel 23 is fixed on swivel joint 24 flange end caps inboard through back-up ring 42 and key 41.Establish Sealing shield ring 44 between said taper roll bearing 48 and swivel joint 24 limiting stands; And between two bearings, establish bearing holder (housing, cover) 45; On its bearing holder (housing, cover) 45, be provided with rectangular channel 54 and through hole 46, this rectangular channel 54 with its outside anchor tip 21 on through hole on set lubricating cup 47 corresponding; Said end cap 52 end face that is connected with swivel joint 24 is provided with asbestos rubber packing ring 51, and inboard and frame is established a thrust bearing 50 between joining at end cap 52 flanges; Be provided with felt collar oil sealing 49 at frame 10 inner side ends.
As shown in Figure 5; The gear parts of driver pinion 32 of the present invention is meshed with the driven gear wheel 23 of whirligig; Its driver pinion 32 wheel shafts are fixed on the frame 10 through the supported on both sides seat 33 that is divided into it; And two supporting seats 33 are provided with deep groove ball bearing 11, and driver pinion 32 wheel shafts link to each other with motor 34 through shaft coupling 60.Outside deep groove ball bearing 11, be provided with bearing (ball) cover 58, and envelope there is felt collar oil sealing 59 in this bearing (ball) cover 58; Bearing (ball) cover 58 inboards on the supporting seat 33 of driver pinion 32 wheel shaft terminations also are provided with asbestos rubber packing ring 55.
The headstock 25 of this wire bending equipment is provided with toggling device 6, fixing die holder 30, and toggling device 6 is provided with hydraulic cylinder 28 and curved mould 4 and is fixed in the motor 31 of headstock 25 bottoms, hydraulic cylinder 28 realization the stepping up wire rod 2 that link to each other with curved mould 4; Motor 31 drives toggling device 6 rotations through linking to each other with actuated element 29; Fixedly die holder 30 is provided with fixed die 9 and realizes fixing wire rod 2 through linking to each other with set hydraulic cylinder 28.
Be as another core inventive point of the present invention, on existing headstock 25, be provided with a hold mode 35 and cutter 27; Said hold mode 35 realizes being close to wire rod 2 through rotation with the set screw mandrel 36 terminal handles that link to each other 37; Said cutter 27 is through linking to each other with set hydraulic cylinder 57, and cutter 27 is provided with scissors 40, and wire rod 2 exits join in scissors 40 terminations and the headstock 25, implements the shearing to wire rod 2.
Operation principle of the present invention is: the present invention is provided with a kind of whirligig between frame 10 and headstock 25; Headstock 25 is connected through bolt 26 with swivel joint 24 in the whirligig; Frame 10 parts are connected through bolt 22 with anchor tip 21 in the whirligig; Driven gear wheel 23 on the whirligig is connected through key 41 with swivel joint 24; Driven gear wheel 23 cooperates with the gear parts of driver pinion 32, and driver pinion 32 wheel shafts link to each other with motor 34 on being fixed on frame 10 through shaft coupling 60.When rotatablely moving; Drum 12 wound wires 2 on the set drum seat 13 of said frame 10 1 ends do not rotate, and power is provided by motor 34, passes to driver pinion 32 through shaft coupling 60; Thereby drive driven gear wheel 23 rotations; Realized that headstock 25 rotates with respect to wire rod 2, the essence of its feed motion is that wire rod is done axial feed motion under feed arrangement drives, and headstock 25 relative wire rod under the drive of drive pinion shaft 32 wheel shafts rotates.
The gear parts of driven gear wheel 23 and driver pinion 32 cooperates; Be provided with deep groove ball bearing 11 between driver pinion 32 wheel shafts and the supporting seat 33; The one of which end adopts bearing (ball) cover 58 to cooperate felt collar oil sealing 59, asbestos rubber packing ring 55 to seal, and the other end uses the labyrinth form sealing between the shaft shoulder and the supporting seat 33.The right-hand member of driver pinion 32 wheel shafts is connected through shaft coupling 60 with motor 34, and motor 34 is connected with frame 10.
Headstock 25 is connected through bolt 26 with swivel joint 24, can rotate synchronously.Headstock 25 is provided with a cutter 27 and a hold mode 35, and cutter 27 is made up of scissors 40, hydraulic cylinder 57, is used for the operation of cutting off after the end of workpiece bending machining.Frame 10 is provided with straightening wheel seat 14, feeding wheel seat 16; Straightening wheel seat 14 is provided with number and exchanges through ship group 15; Be used for the straightening wire rod, feeding wheel seat 16 is provided with motor 20, supports wheels 19, drives wheels 18, power gear 17, and power is passed to power gear 17 by motor 20; Power gear 17 drives and drives wheels 18 rotations, cooperates and supports the axial continuous feed that wheels 19 are realized wire rod.
Headstock 25 is provided with a pair of hold mode 35; Manual rotary handle 37 touch wire rod 2 through screw mandrel 36 a drive hold mode 35, and (both gaps are as far as possible little; But should guarantee that wire rod 2 can be in no frictional movement in the hold mode 35); Its effect is a supporting line body 2 when cutter 27 is cut off operation, cooperates cutter 27 to carry out and cuts off operation.Clamp wire rod 2 when fixedly die holder 30 is used for bending machining.Toggling device 6 is provided with curved mould 39.Wire rod 2 is drawn through the through hole 53 of the swivel joint on the headstock 25 24; And a warp hold mode 35 is close to; With its clamping and after movable mould wheel 38 and curved mould 4 bending machining are a finished product, cutter 27 drives through hydraulic cylinder 57 and implements to shear wire rod 2 through fixing die holder 30.
Practical implementation process of the present invention is: wire rod 2 is inserted support between wheels 19 and the driving wheels 18 earlier; Supporting wheels 19 cooperates driving wheels 18 under the drive of power gear 17; After affecting wire rod 2 on the drum 12 through 15 straightening of straightening wheels; Pass the central through hole 53, hold mode 35 of whirligig, fixing die holder 30, front end fixedly places in the movable wheel mould 38, and manual rotary handle 37 makes and props up a hold mode 35 and touch wire rod 2.Then 28 actions of the hydraulic cylinder on the toggling device 6 make curved mould 4 compress wire rod 2, and fixedly 39 actions of the hydraulic cylinder on the die holder 30 make fixed die 9 be close to wire rod 2.Behind driving wheel 18 feedings one segment distance, motor 31 drives toggling device 6 through actuated element 29 and rotates to an angle, and processes first curved (seeing shown in Figure 2).Then, hydraulic cylinder 28 actions on the toggling device 6, cancellation clamps; Return initial position (pressing close to fixedly die holder 30), fixedly 39 actions of the hydraulic cylinder on the die holder 30 simultaneously clamp fixed die 9 cancellations; Then driving wheel 18 drives wire rod 2 feeding certain-lengths, and motor 34 drives driver pinion 32 wheel shafts and rotates suitable angle, makes driven gear wheel 23 also rotate respective angles; Headstock 25 makes it to rotate respective angles, and each hydraulic cylinder action clamps wire rod 2 then; Motor 31 drives toggling device 6 through actuated element 29 and rotates to an angle, and processes second in the three dimensions curved (seeing shown in Figure 3).In the bending machining process, thereby also can adopt the stressed bending of wire rod on one side of charging on one side to form comparatively complicated workpiece.Hydraulic cylinder 57 actions drive scissors 40 and cut off wire rod 2 on machining afterwards by cutter 27.So repeatedly, carry out the processing of next workpiece.
Claims (1)
1. rotary machine head type wire bending equipment; Comprise frame (10) and be installed in being used on the frame (10) the feed mechanism (7) of the curved silk of wire rod (2), fixedly die holder (30) and toggling device (6); It is characterized in that: on said frame (10), be provided with machine straightening device and feed arrangement; The feed arrangement delivery end connects whirligig; The driven gear wheel (23) that is arranged on this whirligig is meshed with driver pinion (32) on being connected in frame (10), and driver pinion (32) wheel shaft links to each other with motor (34) output shaft on being fixed in frame (10) and realizes the power transmission; And the whirligig end face is connected with headstock (25), and headstock (25) is provided with toggling device (6), cutter (27), a hold mode (35), toggling device (6) and cutter (27) cooperate a hold mode (35) realize to wire rod (2) bending, cut off;
Said whirligig comprises the anchor tip (21) that is connected with frame (10); This anchor tip (21) socket-connects through the swivel joint (24) that a pair of taper roll bearing (48) and center are provided with through hole (53), and this swivel joint (24) also links to each other with end cap (52) through screw (56); Driven gear wheel (23) is fixed on swivel joint (24) flange end cap inboard through back-up ring (42) and key (41);
Said end cap (52) end face that is connected with swivel joint (24) is provided with asbestos rubber packing ring (51), and inboard and frame (10) is established a thrust bearing (50) between joining at end cap (52) flange; On frame (10) and swivel joint (24) outer circle wall abutted surface, be provided with felt collar oil sealing (49).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101983168A CN101862800B (en) | 2010-06-11 | 2010-06-11 | Rotary machine head type wire bending equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101983168A CN101862800B (en) | 2010-06-11 | 2010-06-11 | Rotary machine head type wire bending equipment |
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| CN101862800A CN101862800A (en) | 2010-10-20 |
| CN101862800B true CN101862800B (en) | 2012-04-25 |
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| CN2010101983168A Expired - Fee Related CN101862800B (en) | 2010-06-11 | 2010-06-11 | Rotary machine head type wire bending equipment |
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| CN103521660B (en) * | 2013-10-22 | 2015-05-20 | 浙江博雷重型机床制造有限公司 | Feeding device for numerical-control wire bending machine |
| CN103752724B (en) * | 2013-11-11 | 2015-09-16 | 浙江博雷重型机床制造有限公司 | A kind of wire bending machine |
| CN103752726B (en) * | 2013-11-11 | 2015-09-16 | 浙江博雷重型机床制造有限公司 | A kind of numerical control curved line production line |
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| CN113546988A (en) * | 2021-07-16 | 2021-10-26 | 宁波昌扬机械工业有限公司 | Intelligent bending machine |
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| US6817220B2 (en) * | 2002-11-26 | 2004-11-16 | Shin Chuau Hwa Co., Ltd. | Mold head device of spring forming machine |
| CN100551590C (en) * | 2007-01-23 | 2009-10-21 | 董祥义 | The rotating turnery head of a kind of cutter and have the lathe of this working head |
| CN101406921B (en) * | 2007-10-09 | 2010-12-22 | 深圳市众为兴数控技术有限公司 | Machine for forming numerical control wire |
| CN201189542Y (en) * | 2008-02-05 | 2009-02-04 | 冯广建 | Steel bar automatic double bending bar-straightening machine |
| CN201442049U (en) * | 2009-07-30 | 2010-04-28 | 渤海船舶重工有限责任公司 | Multipurpose bending machine |
| CN101658891A (en) * | 2009-09-24 | 2010-03-03 | 青岛富康源机械厂 | Metal wire bender |
| CN201693098U (en) * | 2010-06-11 | 2011-01-05 | 西安建筑科技大学 | Rotating head type wire bending machine |
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2010
- 2010-06-11 CN CN2010101983168A patent/CN101862800B/en not_active Expired - Fee Related
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| CN101862800A (en) | 2010-10-20 |
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