CN109108104B - Wire arranging device of wire drawing machine - Google Patents
Wire arranging device of wire drawing machine Download PDFInfo
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- CN109108104B CN109108104B CN201810813203.0A CN201810813203A CN109108104B CN 109108104 B CN109108104 B CN 109108104B CN 201810813203 A CN201810813203 A CN 201810813203A CN 109108104 B CN109108104 B CN 109108104B
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- follow
- rotating rod
- rod
- wire
- guide block
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
- B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Transmission Devices (AREA)
Abstract
The invention belongs to the technical field of enameled wire production, and particularly relates to a wire arranging device of a wire drawing machine. The device comprises a tension control assembly, a wire arranging assembly and a take-up reel; the tensioning control assembly comprises a horizontal sliding guide rail, a guide block, a swinging wheel and a follow-up rotating rod; the spiral groove is arranged at the rod body of the follow-up rotating rod around the axis of the follow-up rotating rod, the guide block extends to the spiral groove and is provided with a shifting arm, and the extending section of the shifting arm extends into the groove cavity of the spiral groove, so that when the guide block slides along the horizontal sliding guide rail, the shifting arm pushes the follow-up rotating rod to perform rotary motion along the axis of the follow-up rotating rod due to the spiral groove; and a rotary switch for monitoring the rotation amplitude of the follow-up rotating rod is arranged at the rod end of the follow-up rotating rod. The device has the advantages of ingenious, compact and reasonable structure, rapid and flexible reversing and low running noise, can effectively solve the problems of short service life and poor sensitivity of the traditional proximity switch, and has extremely strong practicability.
Description
Technical Field
The invention belongs to the technical field of enameled wire production, and particularly relates to a wire arranging device of a wire drawing machine.
Background
The wire drawing machine is a mechanical device widely applied to the industries of mechanical manufacturing, hardware processing, petrochemical industry, electric wires and cables and the like, and is used for drawing a wire or a bar so that the diameter, the roundness, the internal metallographic structure, the surface finish and the straightness of the wire or the bar meet the raw material processing requirements required by a standard part. The wire arranging mechanism is an important component in a wire drawing machine and is used for uniformly winding the processed metal wire on a wire collecting disc. In order to enable the metal wire to be uniformly wound, the reciprocating cycle of the guide wheel on the wire arranging mechanism is strictly consistent with the layer winding cycle of the take-up reel. The guide wheel of the existing wire arranging mechanism is arranged on the ball screw, and the horizontal movement of the guide wheel seat is realized by driving the ball screw to rotate through the motor. In order to ensure the stroke monitoring performance of the guide wheel at the wire arranging mechanism, the current general method is to fixedly connect a proximity switch on the back of the guide wheel seat, and arrange an inclined plate with a vertical plate surface and an inclined plate length direction and the axial direction of the ball screw behind the guide wheel seat. When the guide wheel seat is driven by the ball screw to generate reciprocating linear action, the clearance between the proximity switch at the back of the guide wheel seat and the surface of the inclined plate is increased or reduced, so that the proximity switch can correspondingly send different signals to the variable frequency motor, and the purpose of online adjusting the rotating speed of the take-up reel is further achieved. The above structure has the following problems: on the one hand, because the impact force when ball screw moves is great, after long-time use, produce the work wearing and tearing easily and then lead to self life to reduce, and wearing and tearing produce the clearance and can make the sharp increase of machine running noise again. On the other hand, because the proximity switch is fixed on the guide wheel seat and acts along with the guide wheel seat, the proximity switch is required to be connected with an external lead, and the problem of frictional wear and even the problem of line body abrasion can occur when the external lead moves frequently along with the guide wheel seat; meanwhile, the problem of vibration caused by the fact that the lead seat is inevitably affected by the ball screw when in operation is solved, and the proximity switch is fixed on the lead seat, so that the proximity switch can generate follow-up vibration along with the follow-up vibration, sensitivity of the proximity switch is poor, the failure rate is improved, and the service life and the working reliability are sharply reduced.
Disclosure of Invention
The invention aims to provide a wire arranging device of a wire drawing machine aiming at the defects of the prior art; the device has the advantages of ingenious, compact and reasonable structure, rapid and flexible reversing and low running noise, can effectively solve the problems of short service life and poor sensitivity of the traditional proximity switch, and has extremely strong practicability.
In order to achieve the purpose, the invention adopts the following technical scheme:
a wire arranging device of a wire drawing machine at least comprises a tension control assembly, a wire arranging assembly and a take-up reel, wherein the tension control assembly, the wire arranging assembly and the take-up reel are sequentially arranged along the advancing direction of a metal wire; tensioning control assembly includes the horizontal guide rail that slides, with the horizontal guide rail that slides between constitute guide rail slider complex guide block and rigid coupling swinging wheel on the guide block, its characterized in that: the tensioning control assembly further comprises a follow-up rotating rod which is arranged at the rear side of the horizontal sliding guide rail and is arranged in the same direction as the guiding direction of the horizontal sliding guide rail, and the follow-up rotating rod forms a simply supported beam-shaped rotating shaft structure through rotating bearing seats at two rod ends of the follow-up rotating rod; the spiral groove is arranged at the rod body of the follow-up rotating rod around the axis of the follow-up rotating rod, the guide block extends to the spiral groove and is provided with a shifting arm, and the extending section of the shifting arm extends into the groove cavity of the spiral groove, so that when the guide block slides along the horizontal sliding guide rail, the shifting arm pushes the follow-up rotating rod to perform rotary motion along the axis of the follow-up rotating rod due to the spiral groove; and a rotary switch for monitoring the rotation amplitude of the follow-up rotating rod is arranged at the rod end of the follow-up rotating rod.
Preferably, on the cross section of the follow-up rotating rod, the groove shape of the spiral groove is a necking C-shaped groove with the groove opening width smaller than the groove cavity width; the extending section of the shifting arm is provided with a ball head, and the diameter of the ball head is larger than the width of the notch of the spiral groove and smaller than or equal to the width of the groove cavity of the spiral groove.
Preferably, a rotary hole is concavely arranged on one side of the ball head, which is used for being matched with the extending end of the shifting arm, a ball bearing is coaxially arranged in the rotary hole, and the outer ring of the ball bearing is in interference fit with the wall of the rotary hole; the extending end of the shifting arm extends into the inner ring of the ball bearing and forms interference fit with the inner ring.
Preferably, the dial arm is in a straight rod shape, and the axis of the dial arm is vertical to the back wall surface of the guide block so as to be fixedly connected to the back wall surface; the device also comprises an inclined rod used for fixing the shifting arm, wherein the axis of the inclined rod is intersected with the axis of the shifting arm, so that one end of the inclined rod is fixed at the back wall surface of the guide block, and the other end of the inclined rod extends and is fixed at the middle rod body of the shifting arm.
Preferably, the device further comprises a reset assembly for driving the guide block and the swinging wheel to reset, the reset assembly comprises a first turning wheel, a second turning wheel and an anchoring column, and a rotary support for fixing the second turning wheel is fixed at the end of a piston rod of the first cylinder; the first cylinder axis is horizontally arranged; one end of the reset rope is anchored on the guide block, and the other end of the reset rope is fixed at the anchoring column after being guided by the first turning wheel and the second turning wheel respectively.
The invention has the beneficial effects that:
1) by the structure, the invention cancels the approach switch on the swinging wheel and converts the approach switch into the rotary switch; meanwhile, the inherent structure that the traditional swinging wheel is directly and rigidly fixed on the proximity switch is abandoned, and the rotary switch is arranged on the follow-up rotating rod. The follow-up rotating rod is arranged at the side of the swinging wheel and is parallel to the horizontal sliding guide rail where the swinging wheel is located. During actual work, the shifting arm is arranged on the swinging wheel, and the shifting arm can shift the follow-up rotating rod to generate rotating motion when moving back and forth along with the swinging wheel. The rotary switch at one end of the follow-up rotating rod can sense the rotation amount of the follow-up shifting arm, and then the rotary switch can send driving signals with different sizes to a driving motor for driving the take-up reel to rotate according to the rotation amplitude of the follow-up rotating rod, so that the aim of normally winding up the flat cable is finally achieved.
In summary, on the one hand, the proximity switch is abandoned, and the rotary switch is used together with the structure of the follow-up rotating rod, so that the guide block and the switch sensor with sensitive induction are separated from each other, and the rigid fixed state is not presented any more. Therefore, when the metal wire pulls the swinging wheel and the guide block to generate working vibration, the vibration of the swinging wheel and the guide block cannot be directly and rigidly transmitted to the rotary switch, and the working sensitivity and the service life of the rotary switch are ensured. In addition, the rotary switch can be directly fixed at the frame of the wire drawing machine serving as a static part without being fixed at a movable part such as a guide block, so that the problem of friction and abrasion of the lead does not exist, and the actual wiring is more convenient. On the other hand, the shifting arm abuts against the spiral groove at the position of the follow-up rotating rod, the follow-up rotating rod is driven to rotate along with the spiral groove, the working and running noise is low, and obvious slapping and vibration noise is avoided. Meanwhile, the rotary switch senses the rotation amplitude of the follow-up rotating rod and sends a corresponding signal to the driving motor, so that the whole reversing process is very flexible, and the work is reliable and stable.
2) The cross section of the spiral groove is in a C-shaped groove shape, so that the ball head can be clamped in, force applied by the ball head is facilitated, the follow-up rotating rod is pushed to generate rotary motion, and the phenomenon that the ball head is accidentally separated from the spiral groove during working is avoided by the necking groove structure of the spiral groove. Furthermore, even the matching of the shifting arm and the ball head can be designed into a bearing rotation matching mode, namely the matching of the shifting arm and the spiral groove is changed from optical axis matching into rolling matching, so that on one hand, the wear rate of the spiral groove is reduced, and the service life of the follow-up rotating rod is prolonged; on the other hand, the rolling fit can bring higher working flexibility, so that the action induction degree of the follow-up rotating rod to the swinging wheel is further improved, and the working efficiency of the invention is finally ensured.
3) The shifting arm is also fixed on the back wall surface of the guide block, so that the installation and the interference between the action path and the action path of the guide block are avoided. Due to the arrangement of the inclined rod, the original cantilever beam structure of the shifting arm is limited by the more stable triangular support, so that the structural rigidity of the shifting arm is improved, and the working reliability of the shifting arm is improved accordingly.
4) For the tensioning control assembly, when the wire arranging assembly pulls the metal wire to arrange the wire along the wire collecting disc, if the wire collecting disc collects the wire too fast, the swinging wheel at the tensioning control assembly can move to one side along with the wire arranging assembly, namely the guide block can be pulled to slide in a single direction along the horizontal sliding assembly. When the rotation amplitude of the follow-up rotating rod reaches a specified value, the rotary switch sends a signal to the driving motor at the position of the take-up reel to reduce the speed, and at the moment, the guide block cannot reset. Therefore, the invention is additionally provided with the reset component, the cylinder without environmental pollution is used as a power source, and the plurality of turning wheels are used for turning and drawing the reset rope, so that the purpose of resetting the controllable swinging wheel is realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a tension control assembly;
fig. 3 is a schematic structural view of the follower lever.
The corresponding relation between each figure label and each part name of the invention is as follows:
a-metal wire
81-tension control assembly 811-horizontal sliding guide rail
812-guide block 812 a-dial arm 812 b-inclined rod 813-swinging wheel
814-follower rotary rod 814 a-spiral groove 815-rotary switch 816-ball head
82-flat cable assembly 83-take-up reel
84-reset component 841-first direction-changing wheel 842-second direction-changing wheel
843-anchoring column 844-first air cylinder 845-reset rope
Detailed Description
For ease of understanding, the structure and operation of the present invention are further described herein with reference to FIGS. 1-3:
referring to fig. 1 to 3, a metal wire a such as a copper wire is guided by a steering wheel and enters the wire arranging device of the wire drawing machine of the present invention after being subjected to the processes of paying off, wire drawing, cleaning, annealing, cooling, painting, baking and lubricating. As shown in fig. 1, the wire arranging device of the wire drawing machine includes a tension control assembly 81, a wire arranging assembly 82 and a take-up reel 83 which are sequentially arranged along the advancing direction of the metal wire a. The tension control assembly 81 is used for adaptively acting according to the take-up speed of the take-up reel 83, and then feeding back and controlling a driving motor for driving the take-up reel 83 to rotate, so that the take-up reel 83 is always in a proper rotating speed range. The wire arranging component 82 is arranged to control the wire arranging wheel on the wire arranging component by the self uniform reciprocating displacement, so that the metal wire a can be uniformly wound on the wire collecting disc 83.
The tension control assembly 81 is a bright spot portion of the present invention. As shown in fig. 1-3, the tension control assembly 81 includes a horizontal sliding guide 811, a guide block 812, a swinging wheel 813, a follower lever 814, and a rotary switch 815. As shown in fig. 1, the horizontal sliding guide 811 is fixed to the frame of the drawing machine in a horizontal beam shape, and the guide block 812 is slidably fitted to the horizontal sliding guide 811 so that the guide block 812 can perform a horizontal reciprocating guide motion along the horizontal sliding guide 811. The guide block 812 also forms a pivot support for the swivel wheel 813, so that the swivel wheel 813 is pivotably fastened to the guide block 812. A follower lever 814, as shown in fig. 3, is disposed at the area between the guide block 812 and the side wall of the drawing frame. In order to realize the connection and interaction between the guide block 812 and the follower bar 814, as shown in fig. 1 and 3, the follower bar 814 is a straight round bar with a horizontal axis, a C-shaped groove-shaped spiral groove 814a is arranged at the shaft of the follower bar 814, and a dial arm 812a and a ball head 816 are correspondingly arranged at the guide block 812. The arm 812a is engaged with the ball 816 via a ball bearing, and the ball 816 is inserted into the spiral groove 814a as shown in fig. 2. When the swinging wheel 813 generates reciprocating sliding motion along the horizontal sliding guide rail 811, the dial arm 812a will dial the follower rotating rod 814 to generate rotating motion when moving back and forth along the swinging wheel 813, and the rotating switch 815 at one end of the follower rotating rod 814 will sense the rotating amount of the follower lever arm. Then, the rotary switch 815 can send driving signals with different sizes to the driving motor at the take-up reel 83 according to the rotation amplitude of the follow-up rotating rod 814, and finally the purpose of normally winding up the flat cable is achieved.
For the tension control assembly 81, when the wire arranging assembly 82 pulls the wire a to arrange the wire along the wire winding disc 83, if the wire winding disc 83 winds too fast, the swinging wheel 813 at the tension control assembly 81 will generate a lateral advancing motion, that is, the guide block 812 will be pulled to generate a unidirectional sliding motion along the horizontal sliding assembly. When the rotation amplitude of the follower lever 814 reaches a predetermined value, the rotary switch 815 sends a signal to the take-up reel 83 to drive the motor, so as to slow down the speed of the motor, and the guide block 812 itself cannot be reset. Therefore, the present invention adds the resetting component 84, and the resetting rope 845 is turned by the deformation function of the second direction-changing wheel 842 and the first direction-changing wheel 841 through the first cylinder 844 as the driving source, and the two ends of the resetting rope 845 are respectively fixedly connected to the guide block 812 and the anchoring column 843, so that the purpose of resetting the controllable swinging wheel 813 can be conveniently realized.
Claims (5)
1. A wire arranging device of a wire drawing machine at least comprises a tension control assembly (81), a wire arranging assembly (82) and a take-up reel (83) for executing wire winding operation, wherein the tension control assembly, the wire arranging assembly and the take-up reel are sequentially arranged along the advancing direction of a metal wire; tensioning control assembly (81) including horizontal slip guide rail (811), with horizontal slip guide rail (811) between constitute guide rail slider complex guide block (812) and rigid coupling in swinging wheel (813) on guide block (812), its characterized in that: the tensioning control assembly (81) further comprises a follow-up rotating rod (814) which is arranged at the rear side of the horizontal sliding guide rail (811) and arranged in the same direction as the guiding direction of the horizontal sliding guide rail (811), and the follow-up rotating rod (814) forms a simply supported beam-shaped rotating shaft structure through rotating bearing seats at two rod ends of the follow-up rotating rod (814); a spiral groove (814a) is formed in the shaft of the follow-up rotating rod (814) around the axis of the follow-up rotating rod (814), a shifting arm (812a) is arranged in a manner that the guide block (812) extends to the spiral groove (814a), and the extending section of the shifting arm (812a) extends into the groove cavity of the spiral groove (814a), so that when the guide block (812) slides along the horizontal sliding guide rail (811), the shifting arm (812a) pushes the follow-up rotating rod (814) to rotate along the axis of the follow-up rotating rod (814) due to the spiral groove (814 a); a rotary switch (815) for monitoring the rotation amplitude of the follow-up rotary rod (814) is arranged at the rod end of the follow-up rotary rod (814).
2. The wire arranging device of a wire drawing machine according to claim 1, wherein: on the cross section of the follow-up rotating rod (814), the groove shape of the spiral groove (814a) is a necking C-shaped groove with the groove opening width smaller than that of the groove cavity; a ball head (816) is arranged at the extending section of the poking arm (812a), and the diameter of the ball head (816) is larger than the width of the notch of the spiral groove (814a) and smaller than or equal to the width of the groove cavity of the spiral groove (814 a).
3. The wire arranging device of a wire drawing machine according to claim 2, wherein: one side of the ball head (816) used for being matched with the extending end of the shifting arm (812a) is concavely provided with a rotary hole, a ball bearing is coaxially arranged in the rotary hole, and the outer ring of the ball bearing is in interference fit with the wall of the rotary hole; the extending end of the shifting arm (812a) extends into the inner ring of the ball bearing and forms interference fit with the inner ring.
4. A wire arranging device for a wire drawing machine according to claim 1, 2 or 3, wherein: the dial arm (812a) is in a straight rod shape, and the axis of the dial arm (812a) is vertical to the back wall surface of the guide block (812) so as to be fixedly connected to the back wall surface; the device also comprises a diagonal rod (812b) used for fixing the shifting arm (812a), wherein the axis of the diagonal rod (812b) and the axis of the shifting arm (812a) are intersected with each other, so that one end of the diagonal rod (812b) is fixed at the back wall surface of the guide block (812), and the other end of the diagonal rod (812b) extends and is fixed at the middle rod body of the shifting arm (812 a).
5. A wire arranging device for a wire drawing machine according to claim 1, 2 or 3, wherein: the device also comprises a reset assembly (84) for driving the guide block (812) and the swinging wheel (813) to reset, wherein the reset assembly (84) comprises a first turning wheel (841), a second turning wheel (842) and an anchor column (843), and a rotary support for fixing the second turning wheel (842) is fixed at the end of a piston rod of the first air cylinder (844); the axis of the first cylinder (844) is horizontally arranged; one end of the reset rope (845) is anchored on the guide block (812), and the other end of the reset rope is fixed at the anchoring column (843) after being guided by the first turning wheel (841) and the second turning wheel (842) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810813203.0A CN109108104B (en) | 2018-07-23 | 2018-07-23 | Wire arranging device of wire drawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810813203.0A CN109108104B (en) | 2018-07-23 | 2018-07-23 | Wire arranging device of wire drawing machine |
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| Publication Number | Publication Date |
|---|---|
| CN109108104A CN109108104A (en) | 2019-01-01 |
| CN109108104B true CN109108104B (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810813203.0A Active CN109108104B (en) | 2018-07-23 | 2018-07-23 | Wire arranging device of wire drawing machine |
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| CN (1) | CN109108104B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112576068A (en) * | 2020-12-14 | 2021-03-30 | 澧县红似火新型建材有限责任公司 | Portable simple and easy steel frame structure house that building site used |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3225487A1 (en) * | 1981-08-21 | 1983-07-21 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Wire winding machine |
| US6142406A (en) * | 1999-04-27 | 2000-11-07 | Newman; Kenneth E. | Method and system for controlling a coiled tubing arch |
| JP2002321871A (en) * | 2001-04-25 | 2002-11-08 | Ito Kikai Kk | Winding pitch speed automatic follow-up sending wire guide device for wire rod to winding bobbin |
| WO2011109484A3 (en) * | 2010-03-04 | 2012-02-23 | Kiswel, Inc. | Methods and apparatus for continuous winding of spools and products made therefrom |
| CN202263796U (en) * | 2011-09-20 | 2012-06-06 | 合肥得一新材料科技有限公司 | Constant tension wire taking-off device |
| CN102527748A (en) * | 2012-01-06 | 2012-07-04 | 无锡奥特维科技有限公司 | Winding and arranging control system of fine steel wire drawing machine |
| CN204672729U (en) * | 2015-05-15 | 2015-09-30 | 湖北三江航天江北机械工程有限公司 | The winding displacement flatness sampling equipment of steel cord water tank drawbench |
| CN206578150U (en) * | 2016-12-28 | 2017-10-24 | 安徽江南鸣放电子科技有限公司 | A kind of winding and arranging device of wire drawing machine |
-
2018
- 2018-07-23 CN CN201810813203.0A patent/CN109108104B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3225487A1 (en) * | 1981-08-21 | 1983-07-21 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Wire winding machine |
| US6142406A (en) * | 1999-04-27 | 2000-11-07 | Newman; Kenneth E. | Method and system for controlling a coiled tubing arch |
| JP2002321871A (en) * | 2001-04-25 | 2002-11-08 | Ito Kikai Kk | Winding pitch speed automatic follow-up sending wire guide device for wire rod to winding bobbin |
| WO2011109484A3 (en) * | 2010-03-04 | 2012-02-23 | Kiswel, Inc. | Methods and apparatus for continuous winding of spools and products made therefrom |
| CN202263796U (en) * | 2011-09-20 | 2012-06-06 | 合肥得一新材料科技有限公司 | Constant tension wire taking-off device |
| CN102527748A (en) * | 2012-01-06 | 2012-07-04 | 无锡奥特维科技有限公司 | Winding and arranging control system of fine steel wire drawing machine |
| CN204672729U (en) * | 2015-05-15 | 2015-09-30 | 湖北三江航天江北机械工程有限公司 | The winding displacement flatness sampling equipment of steel cord water tank drawbench |
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| CN109108104A (en) | 2019-01-01 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Wire drawing machine Effective date of registration: 20220916 Granted publication date: 20191220 Pledgee: JINGDA SPECIAL ELECTROMAGNETIC Pledgor: TONGLING JINGXUN SPECIAL ENAMELLED WIRE Co.,Ltd. Registration number: Y2022980015358 |
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Date of cancellation: 20230830 Granted publication date: 20191220 Pledgee: JINGDA SPECIAL ELECTROMAGNETIC Pledgor: TONGLING JINGXUN SPECIAL ENAMELLED WIRE Co.,Ltd. Registration number: Y2022980015358 |
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Denomination of invention: Wire drawing machine wiring device Effective date of registration: 20230901 Granted publication date: 20191220 Pledgee: JINGDA SPECIAL ELECTROMAGNETIC Pledgor: TONGLING JINGXUN SPECIAL ENAMELLED WIRE Co.,Ltd. Registration number: Y2023980054870 |
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