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CN109365680A - A kind of line sending coalignment for coiling machine - Google Patents

A kind of line sending coalignment for coiling machine Download PDF

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Publication number
CN109365680A
CN109365680A CN201811285796.4A CN201811285796A CN109365680A CN 109365680 A CN109365680 A CN 109365680A CN 201811285796 A CN201811285796 A CN 201811285796A CN 109365680 A CN109365680 A CN 109365680A
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CN
China
Prior art keywords
rotating roller
shell
wire spring
coalignment
coiling machine
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811285796.4A
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Chinese (zh)
Other versions
CN109365680B (en
Inventor
周胡琴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jining High Tech Keda Technology Project Service Co ltd
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Individual
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Priority to CN201811285796.4A priority Critical patent/CN109365680B/en
Publication of CN109365680A publication Critical patent/CN109365680A/en
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Publication of CN109365680B publication Critical patent/CN109365680B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21FWORKING OR PROCESSING OF METAL WIRE
    • B21F1/00Bending wire other than coiling; Straightening wire
    • B21F1/02Straightening
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21FWORKING OR PROCESSING OF METAL WIRE
    • B21F23/00Feeding wire in wire-working machines or apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21FWORKING OR PROCESSING OF METAL WIRE
    • B21F35/00Making springs from wire

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)

Abstract

The invention discloses a kind of line sending coalignments for coiling machine, including rotating roller between two supports is arranged, the both ends of rotating roller are fixedly connected to the rotation axis that axle center offers through-hole, bearing block is provided between each rotation axis and bracket, it is linked by belt and driving motor one end that one of them described rotation axis is pierced by bracket, the inside hollow out of rotating roller is arranged and is uniformly equipped with several fixed links being staggered on the shell of rotating roller, each fixed link is each provided with hex nut in the two sides of rotating roller shell, each fixed link is provided in one end in rotating roller can be to the thread feeding mechanism of wire spring line adjust automatically clamping force, several thread feeding mechanisms are in approximately the same plane with the through-hole at rotation axis.The invention has the following advantages: this device, which can fluctuate biggish wire spring line to outer diameter and rugosity, is automatically adjusted clamping force, to carry out line sending and alignment operation simultaneously.

Description

A kind of line sending coalignment for coiling machine
Technical field
The present invention relates to coiling machine technical field, in particular to a kind of line sending coalignment for coiling machine.
Background technique
Coiling machine is mainly made of cam mechanism, thread feeding mechanism, thread rolling mechanism, aligning mechanism and coiling disk, is used When, wire spring line is delivered to aligning mechanism by coiling disk, then most passes through afterwards through line sending main-shaft core to thread feeding mechanism It crosses cam mechanism and is processed into required finished product.
Existing aligning mechanism such as notification number is that the Chinese patent of CN201519723U discloses a kind of coiling machine straightener Structure, the mechanism are that the reeded alignment rolling wheel of several outer diameters is mounted to two rows, and wire spring line passes through two rows of alignment rolling wheels Centre is to achieve the purpose that alignment.But this alignment mode pull wire spring line advance power be it is very big, need to overcome compared with Big resistance acting.
Meanwhile the existing thread feeding mechanism for pulling wire spring line to advance generally uses hydraulic, air pressure mechanism or bolt The relative position of feeding drop center wheel is controlled, the clamping force of every group of feeding drop center wheel is uniformly controlled.It has problems in that: Cannot flexible feedback information, while can not be adjusted and be controlled individually at any time according to actual needs.Particular for outer diameter Biggish wire spring line is fluctuated with rugosity, cannot automatically control and adjust the clamping force to wire spring line.In pagoda spring In the production process, incrementally increasing with spring outer diameter, the feed clamp clamp force of spring steel wire needs synchronous reduction, if used Hydraulic or air pressure clamps, then needs constantly to go adjustment pressure by hand, this be in actually manufacture it is very unrealistic, need It improves.
Based on the above situation, the present inventor is further to this is studied, and is developed a kind of for outer diameter and rugosity fluctuation Biggish wire spring line is automatically adjusted clamping force, to carry out line sending and alignment operation simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of line sending coalignments for coiling machine, and this device can be to outer diameter and rugosity It fluctuates biggish wire spring line and is automatically adjusted clamping force, to carry out line sending and alignment operation simultaneously.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of line sending for coiling machine Coalignment, including rotating roller between two supports is arranged, the both ends of the rotating roller are fixedly connected to axle center and open up There is the rotation axis of through-hole, bearing block is provided between each rotation axis and bracket, one of rotation axis is pierced by bracket One end linked by belt and driving motor.The inside hollow out of the rotating roller be arranged and on the shell of rotating roller uniformly Several fixed links being staggered are equipped with, each fixed link is each provided with hexagonal spiral shell in the two sides of rotating roller shell Mother, each fixed link is provided in one end in rotating roller can be automatic to outer diameter and the biggish wire spring line of rugosity fluctuation The thread feeding mechanism of clamping force is adjusted, several described thread feeding mechanisms are in approximately the same plane with the through-hole at rotation axis.
The present invention is further arranged to: each thread feeding mechanism includes shell and the end that shell both ends are arranged in Lid, one of them described end cap are built-in with fixed disc, the fixed disc be provided with towards the side of shell with vortex-like Guide rail, the side of the deviated from shell of fixed disc be provided with several around fixed disc axle center circumference arrangement teeth, The side of the teeth is engaged with the bevel gear that fixed disc can be driven to be rotated, and the side of the shell is circumferentially uniformly set It sets there are three open slot, mobile abutting block can be carried out in open slot by being provided in each open slot, each described Abut block one end of guide rail is provided with the guide ledges that can be matched with guide rail, each end cap and fixed disc Axle center at be provided with the saturating string holes passed through for wire spring line, each abutting block is respectively provided in the intracorporal one end of shell There is the arc-shaped abutting part that can be squeezed wire spring line, the side of the bevel gear, which is provided with, can rotate forward with dynamic bevel gear, is anti- The actuator turned.
The present invention is further arranged to: arc-shaped abutting part in each thread feeding mechanism far from the side for abutting block It is provided with internal screw thread, is provided with and can be matched with above-mentioned internal screw thread on the outside of the wire spring line of saturating string holes in the thread feeding mechanism External screw thread.
The present invention is further arranged to: each actuator includes that servo motor and control servo motor rotate forward, are anti- The PLC component turned, the servo motor and PLC component are fixedly arranged on the shell of rotating roller, the output of the servo motor Axis is penetrated in rotating roller and is fixedly connected with bevel gear, and each servo motor individually connect setting with thread feeding mechanism.
The present invention is further arranged to: the wire spring line includes wirerope and the outer layer for being set in wirerope periphery Casing is provided with aluminium foil protective layer, is arranged between the wirerope and aluminium foil protective layer between the wirerope and outer layer sleeve There is the fibre bundle of dip-coating lubricating oil, being provided on the outside of the outer layer sleeve can match with the internal screw thread at arc-shaped abutting part External screw thread.
The present invention is further arranged to: the side of the shell is provided with the recessing groove that can be connected with open slot, described Recessing groove can allow guide ledges to pass through at recessing groove when abutting block and expanding outwardly or shrink.
The present invention is further arranged to: the shell connects by the way that fastening screw is fixed with the end cap for being located at shell both ends It connects.
The present invention is further arranged to: end cap of each fixed link in one end and thread feeding mechanism in rotating roller is fixed to be connected It connects.
In conclusion the invention has the following advantages: the present invention while completing to be straightened wire spring line, it is real Showed the self-feeding to wire spring line operation, under the control of PLC component, servo motor can automatic driving bevel gear just Turn or invert certain angle, to increase or decrease arc-shaped abutting part to the pressure of wire spring line, so that wire spring line can Automatic line sending operation is realized under the action of thread feeding mechanism.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment;
Fig. 2 is the structure sectional view of Fig. 1;
Fig. 3 is the structural schematic diagram of thread feeding mechanism in Fig. 2;
Fig. 4 is that the structural schematic diagram after actuator and fixed link is removed in Fig. 3;
Fig. 5 is the structural blast schematic diagram of Fig. 4;
Fig. 6 is the structural schematic diagram of Fig. 5 in another direction;
Fig. 7 is three abutting parts in Fig. 6 to the structural schematic diagram under wire spring line squeezed state;
Fig. 8 is the structural schematic diagram of wire spring line in the present embodiment.
Appended drawing reference: 1, bracket;2, rotating roller;3, rotation axis;4, bearing block;5, belt;6, driving motor;7, fixed Bar;8, hex nut;9, thread feeding mechanism;10, shell;11, end cap;12, fixed disc;13, guide rail;14, teeth;15, tooth is bored Wheel;16, open slot;17, block is abutted;18, guide ledges;19, saturating string holes;20, abutting part;21, actuator;22, servo motor; 23, PLC component;24, internal screw thread;25, wire spring line;26, wirerope;27, casing;28, aluminium foil protective layer;29, fibre bundle; 30, recessing groove.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.
As depicted in figs. 1 and 2, a kind of line sending coalignment for coiling machine, including being arranged between two brackets 1 Rotating roller 2.The both ends of rotating roller 2 are fixedly connected to the rotation axis 3 that axle center offers through-hole, each rotation axis 3 and bracket 1 it Between be provided with bearing block 4, the frictional force between rotation axis 3 and bracket 1 is reduced with this.One of rotation axis 3 is pierced by bracket 1 One end linked with driving motor 6 by belt 5.Driving motor 6 can drive rotation axis 3 to be rotated by belt 5.It is logical It crosses and rotating roller 2 is vacantly arranged, so that driving motor 6 can be acted on when starting by belt 5 to drive rotating roller 2 to carry out high speed and turn It is dynamic.The inside hollow out of rotating roller 2 is arranged and is uniformly equipped with several fixed links 7 being staggered on the shell of rotating roller 2, often A fixed link 7 is each provided with hex nut 8 in the two sides of 2 shell of rotating roller, and each fixed link 7 is set in one end in rotating roller 2 It is equipped with the thread feeding mechanism 9 that biggish 25 adjust automatically clamping force of wire spring line can be fluctuated to outer diameter and rugosity, to pass through fixation Bar 7 realizes the fixation after the positioning of thread feeding mechanism 9.Several thread feeding mechanisms 9 are in same flat with the through-hole at rotation axis 3 Face.
As shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, each thread feeding mechanism 9 includes shell 10 and is arranged at 10 liang of shell The end cap 11 at end.One of end cap 11 is built-in with fixed disc 12, fixed disc 12 be provided with towards the side of shell 10 With vortex-like guide rail 13, the side of the deviated from shell 10 of fixed disc 12 is provided with several around 12 axle center circumference of fixed disc The teeth 14 of arrangement, the side of teeth 14 are engaged with the bevel gear 15 that fixed disc 12 can be driven to be rotated, and the one of shell 10 Side is circumferentially uniformly arranged there are three open slot 16, be provided in each open slot 16 can be carried out in open slot 16 it is mobile Abut block 17, each abutting block 17 one end of guide rail 13 is provided with the guide ledges 18 that can be matched with guide rail 13.Often The saturating string holes 19 passed through for wire spring line 25 is provided at the axle center of a end cap 11 and fixed disc 12.Each abutting Block 17 is provided with the arc-shaped abutting part 20 that can be squeezed wire spring line 25 in one end in shell 10.The one of bevel gear 15 Side, which is provided with, to be rotated forward with dynamic bevel gear 15, the actuator 21 of reversion.
By rotating bevel gear 15 to drive the fixed disc 12 with teeth 14 to be rotated, block 17 is abutted due to being located at There is vortex-like guide rail 13 to match for the guide ledges 18 of one end and 12 side of fixed disc so that three abuttings blocks 17 at the same to Outer expansion or contraction, to realize the variation for three arc-shaped abutting parts, the 20 end face inscribed circle diameter being located in shell 10.Pass through Actuator 21 rotates forward, reversion bevel gear 15 expands outwardly or shrinks simultaneously to adjust three abutting blocks 17, and then adjust automatically pair Outer diameter and rugosity fluctuate biggish 25 clamping force of wire spring line.
As shown in figures 1 and 3, each actuator 21 includes that servo motor 22 and control servo motor 22 are rotated forward, inverted PLC component 23.Servo motor 22 and PLC component 23 are fixedly arranged on the shell of rotating roller 2.The output shaft of servo motor 22 It penetrates in rotating roller 2 and is fixedly connected with bevel gear 15.Each servo motor 22 individually connect setting with thread feeding mechanism 9, in this way Outer diameter and rugosity at passed through thread feeding mechanism 9 can be individually adjusted and fluctuate biggish 25 clamping force of wire spring line.
As shown in Fig. 5, Fig. 6 and Fig. 7, arc-shaped abutting part 20 in each thread feeding mechanism 9 far from abutting the one of block 17 Side is provided with internal screw thread 24.Be provided on the outside of the wire spring line 25 of saturating string holes 19 in passed through thread feeding mechanism 9 can with it is above-mentioned The external screw thread that internal screw thread 24 matches (attached drawing does not mark).When driving motor 6 starts to drive rotating roller 2 to carry out high-speed rotation When, since several thread feeding mechanisms 9 being located in rotating roller 2 are fixedly connected with rotating roller 2, and then each thread feeding mechanism 9 is equal High-speed rotation can be synchronized with rotating roller 2.Since the arc-shaped abutting part 20 in each thread feeding mechanism 9 is to wire spring line 25 have clamping force, and the internal screw thread 24 at arc-shaped abutting part 20 is matched with the external screw thread of wire spring line 25, so that sending Line mechanism 9 can the progress line sending operation of synchronous drive wire spring line 25 when following rotating roller 2 to carry out high-speed rotation.
Specifically, as shown in figure 8, wire spring line 25 includes wirerope 26 and the outer layer for being set in 26 periphery of wirerope Casing 27 is provided with aluminium foil protective layer 28, between wirerope 26 and aluminium foil protective layer 28 between wirerope 26 and outer layer sleeve 27 It is provided with the fibre bundle 29 of dip-coating lubricating oil, the lubricant of 29 dip-coating of fibre bundle can reduce damage caused by rubs mutually between steel wire Wound.The outside of outer layer sleeve 27 is provided with the external screw thread that can be matched with the internal screw thread 24 at arc-shaped abutting part 20.
Further, the side of shell 10 is provided with the recessing groove 30 that can be connected with open slot 16.The recessing groove 30 can Guide ledges 18 are allowed to pass through at recessing groove 30 when abutting block 17 and expanding outwardly or shrink.
Further, shell 10 is fixedly connected by fastening screw with the end cap 11 for being located at 10 both ends of shell.
Further, each fixed link 7 is fixedly connected in one end in rotating roller 2 with the end cap 11 in thread feeding mechanism 9.
The working principle of the invention:
1. wire spring line 25 is passed through rotating roller 2 according to the thickness of wire spring line 25 and bending degree first, and wherein one end turns The through-hole of moving axis 3, then it is successively each passed through the saturating string holes 19 in rotating roller 2 in several thread feeding mechanisms 9, then be pierced by rotating roller 2 The through-hole of other end rotation axis 3;
2. controlling servo motor 22 by PLC component 23 to operate, so that three abutting blocks 17 in each thread feeding mechanism 9 are simultaneously It expands outwardly or shrinks, realize that three arc-shaped abutting parts 20 being located in shell 10 are squeezed towards wire spring line 25. When driving motor 6 starts to drive rotating roller 2 to carry out high-speed rotation, due to the internal screw thread 24 and steel at arc-shaped abutting part 20 The external screw thread of silk spring wire 25 matches, so that thread feeding mechanism 9 can synchronous drive steel when following rotating roller 2 to carry out high-speed rotation Silk spring wire 25 carries out line sending operation.At this point, the torque value X that running servo motor 22 detects is transmitted to by data PLC component 23, PLC component 23 will test data X and compare with setting value Y, if within the set range, do not issued instructions to servo Motor 22 is rotated forward, reversion, and then expand outwardly or receive simultaneously by 15 pairs of abutting blocks 17 of bevel gear with controlling servo motor 22 Contracting, and then the extruding force to wire spring line 25 is increased or decreased, to adjust feeding thrust at any time according to actual state;
3. since rotating roller 2 is carrying out high-speed rotation, so that several feeding mechanisms being installed in inside rotating roller 2 can synchronize Rotation, so that wire spring line 25 is gradually overlapped with the axial line of through-hole at rotation axis 3, to complete to be straightened.
Sending to wire spring line 25 is realized while completing to be straightened wire spring line 25 by aforesaid operations Material operation, under the control of PLC component 23, the automatic driving bevel gear 15 of the meeting of servo motor 22 rotates forward or reversion certain angle, comes Arc-shaped abutting part 20 is increased or decreased to the pressure of wire spring line 25, so that wire spring line 25 can be in thread feeding mechanism 9 Effect is lower to realize automatic line sending operation.

Claims (8)

1. a kind of line sending coalignment for coiling machine, it is characterized in that: including the rotating roller being arranged between two brackets (1) (2), the both ends of the rotating roller (2) are fixedly connected to the rotation axis (3) that axle center offers through-hole, each rotation axis (3) it is provided between bracket (1) bearing block (4), one end that one of them described rotation axis (3) is pierced by bracket (1) passes through Belt (5) links with driving motor (6), in the setting of the inside hollow out of the rotating roller (2) and the shell of rotating roller (2) Even to be equipped with several fixed links (7) being staggered, each fixed link (7) respectively sets in the two sides of rotating roller (2) shell It is equipped with hex nut (8), each fixed link (7) is provided in one end in rotating roller (2) and can fluctuate to outer diameter and rugosity The thread feeding mechanism (9) of biggish wire spring line (25) adjust automatically clamping force, several described thread feeding mechanisms (9) with rotation Through-hole at axis (3) is in approximately the same plane.
2. a kind of line sending coalignment for coiling machine according to claim 1, it is characterized in that: each Wire-feeding machine Structure (9) includes the end cap (11) of shell (10) and setting at shell (10) both ends, one of them described end cap (11) is interior Be equipped with fixed disc (12), the fixed disc (12) be provided with towards the side of shell (10) with vortex-like guide rail (13), the side of the deviated from shell of the fixed disc (12) (10) is provided with several around fixed disc (12) axle center circumferential row The teeth (14) of cloth, the side of the teeth (14) are engaged with the bevel gear (15) that fixed disc (12) can be driven to be rotated, The side of the shell (10) is circumferentially uniformly arranged there are three open slot (16), and each open slot (16) is interior to be provided with Can carry out mobile abutting block (17) in the open slot (16), each abutting block (17) set towards one end of guide rail (13) The guide ledges (18) that can be matched with guide rail (13) are equipped with, at the axle center of each end cap (11) and fixed disc (12) It is provided with the saturating string holes (19) passed through for wire spring line (25), each abutting block (17) is in one in shell (10) End is provided with the arc-shaped abutting part (20) that can be squeezed wire spring line (25), and the side of the bevel gear (15) is provided with It can be rotated forward with dynamic bevel gear (15), the actuator (21) of reversion.
3. a kind of line sending coalignment for coiling machine according to claim 2, it is characterized in that: each Wire-feeding machine Arc-shaped abutting part (20) in structure (9) be provided with internal screw thread (24), the Wire-feeding machine far from the side for abutting block (17) The external screw thread that can be matched with above-mentioned internal screw thread (24) is provided on the outside of the wire spring line (25) of saturating string holes (19) in structure (9).
4. a kind of line sending coalignment for coiling machine according to claim 2, it is characterized in that: each actuator It (21) include servo motor (22) and the PLC component (23) that control servo motor (22) is rotated forward, inverted, the servo motor (22) and PLC component (23) is fixedly arranged on the shell of rotating roller (2), and the output shaft of the servo motor (22) penetrates rotation It is fixedly connected in roller (2) with bevel gear (15), each servo motor (22) individually connect setting with thread feeding mechanism (9).
5. a kind of line sending coalignment for coiling machine according to claim 3, it is characterized in that: the wire spring line It (25) include wirerope (26) and the outer layer sleeve (27) for being set in wirerope (26) periphery, the wirerope (26) and outer layer It is provided between casing (27) aluminium foil protective layer (28), is provided with dip-coating between the wirerope (26) and aluminium foil protective layer (28) The fibre bundle (29) of lubricating oil, being provided on the outside of the outer layer sleeve (27) can be with the internal screw thread at arc-shaped abutting part (20) (24) external screw thread matched.
6. a kind of line sending coalignment for coiling machine according to claim 2, it is characterized in that: the shell (10) Side is provided with the recessing groove (30) that can be connected with open slot (16), and the recessing groove (30) can abut block (17) to extending out It opens or allows guide ledges (18) to pass through at recessing groove (30) when shrinking.
7. a kind of line sending coalignment for coiling machine according to claim 6, it is characterized in that: the shell (10) with End cap (11) positioned at shell (10) both ends is fixedly connected by fastening screw.
8. a kind of line sending coalignment for coiling machine according to claim 7, it is characterized in that: each fixed link (7) It is fixedly connected in one end in rotating roller (2) with the end cap (11) in thread feeding mechanism (9).
CN201811285796.4A 2018-10-31 2018-10-31 Wire feeding straightening device for spring machine Active CN109365680B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811285796.4A CN109365680B (en) 2018-10-31 2018-10-31 Wire feeding straightening device for spring machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811285796.4A CN109365680B (en) 2018-10-31 2018-10-31 Wire feeding straightening device for spring machine

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Publication Number Publication Date
CN109365680A true CN109365680A (en) 2019-02-22
CN109365680B CN109365680B (en) 2020-05-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112296214A (en) * 2020-10-13 2021-02-02 东莞针刺科技有限公司 Automatic straightening device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2468626Y (en) * 2001-03-09 2002-01-02 覃国君 Machine for straightening steel bar
KR20100024011A (en) * 2008-08-25 2010-03-05 (주)아나스틸 Wire straightener and system for straightening wire using wire straightener
CN102921835A (en) * 2011-08-12 2013-02-13 江苏申源特钢有限公司 Valve steel plate element straightener
CN105887529A (en) * 2014-12-09 2016-08-24 徐金楼 Steel spring wire
CN207787562U (en) * 2018-01-23 2018-08-31 诸暨市新光市政设施有限公司 A kind of machine straightening device of steel bar straightener

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2468626Y (en) * 2001-03-09 2002-01-02 覃国君 Machine for straightening steel bar
KR20100024011A (en) * 2008-08-25 2010-03-05 (주)아나스틸 Wire straightener and system for straightening wire using wire straightener
CN102921835A (en) * 2011-08-12 2013-02-13 江苏申源特钢有限公司 Valve steel plate element straightener
CN105887529A (en) * 2014-12-09 2016-08-24 徐金楼 Steel spring wire
CN207787562U (en) * 2018-01-23 2018-08-31 诸暨市新光市政设施有限公司 A kind of machine straightening device of steel bar straightener

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112296214A (en) * 2020-10-13 2021-02-02 东莞针刺科技有限公司 Automatic straightening device
CN112296214B (en) * 2020-10-13 2022-10-11 东莞针刺科技有限公司 Automatic straightening device

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Effective date of registration: 20211217

Address after: 272000 No. 5566 Chongwen Avenue, high tech Zone, Jining City, Shandong Province

Patentee after: Jining high tech Keda Technology Project Service Co.,Ltd.

Address before: 325000 Wenzhou, Longwan, Zhejiang province 205 Longwan Yan Road two group 1 Yanhu community 505 units 505 units

Patentee before: Zhou Huqin

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20190222

Assignee: Jinan jinzhonglou Architectural Decoration Engineering Co.,Ltd.

Assignor: Jining high tech Keda Technology Project Service Co.,Ltd.

Contract record no.: X2023980048737

Denomination of invention: A wire straightening device for spring machines

Granted publication date: 20200501

License type: Common License

Record date: 20231206