CN114575173B - Paying-off device of high-elongation steel cord and twisting and stranding solution method thereof - Google Patents
Paying-off device of high-elongation steel cord and twisting and stranding solution method thereof Download PDFInfo
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- CN114575173B CN114575173B CN202210226846.1A CN202210226846A CN114575173B CN 114575173 B CN114575173 B CN 114575173B CN 202210226846 A CN202210226846 A CN 202210226846A CN 114575173 B CN114575173 B CN 114575173B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 38
- 239000010959 steel Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 7
- 241001589086 Bellapiscis medius Species 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 230000005465 channeling Effects 0.000 abstract description 9
- 238000001125 extrusion Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 238000003490 calendering Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
- D07B7/02—Machine details; Auxiliary devices
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- Ropes Or Cables (AREA)
Abstract
The invention discloses a paying-off device of a high-elongation steel cord and a twisting and stranding solution method thereof, belonging to the technical field of steel cord stranding and rope forming production; aims at solving the technical problems that the paying-off tension is inconsistent and the strand channeling phenomenon is easy to occur. Including the host computer, install the over-twister on the host computer, install the left side traction wheelset of over-twister is in the main shaft flywheel dish on the over-twister right side, main shaft flywheel dish includes left flywheel dish, right flywheel dish, left main shaft and right main shaft, left flywheel dish with be provided with cradle unwrapping wire bottom plate in the middle of the right flywheel dish, be provided with multiunit unwrapping wire mechanism on the cradle unwrapping wire bottom plate, multiunit unwrapping wire mechanism steerable unwrapping wire tension, multiunit unwrapping wire mechanism below is provided with synchronizer, synchronizer can cushion unwrapping wire tension of unwrapping wire mechanism. The invention can maintain the consistency of paying-off tension of the paying-off device, reduce the phenomenon of strand channeling, improve the elongation index and improve the product quality of the steel cord.
Description
Technical Field
The invention relates to a paying-off device of a high-elongation steel cord and a twisting and stranding solution method thereof, belonging to the field of steel cord stranding and rope forming production.
Background
The main specifications of the high elongation steel cord are 3×7, 3×4, 4×4, 4×6, etc., and the 3×7 structure is the most widely used in tire manufacturing applications. Taking 3×7x0.20HE structure high elongation steel cord as an example, in the tire production and manufacturing process, there are two production processes of zero degree extrusion method and calendaring method according to different tire application positions. The extrusion method production process has higher requirements on the high-elongation steel cord, and extrusion broken line problems can occur in the production process due to the influences of factors such as the pressure of an extruder, the extrusion speed, the aperture of an extrusion plate and the like. To overcome the problem of broken wire in extrusion processes, there is generally provided a high elongation steel cord without weld spots for extrusion processes and a high elongation steel cord with weld spots for calendaring processes. However, even if a high elongation steel cord without welding spots is used for the extrusion production, the steel cord is pushed during the extrusion due to factors such as the influence of the pay-off tension, and the like, resulting in the occurrence of extrusion breakage due to the fact that 3 strands of the steel cord are different in length, i.e., the strands are blowed. Therefore, the existing stranding machine cannot effectively avoid the problem of strand channeling of 3×7×0.20HE high elongation steel cords, and there is a need for improvement of a pay-off device of the stranding machine and a solution for strand channeling by twisting.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a paying-off device of a high-elongation steel cord and a twisting and stranding solution method thereof, and the paying-off tension consistency is maintained and the stranding phenomenon is controlled by simultaneously arranging a paying-off mechanism capable of controlling the tension and a synchronous device capable of buffering the paying-off tension of the paying-off mechanism.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the invention provides a paying-off device of a high-elongation steel cord, comprising: including the host computer, install the over-twister on the host computer, install the left side traction wheelset of over-twister is in the main shaft flywheel dish on the over-twister right side, main shaft flywheel dish includes left flywheel dish, right flywheel dish, left main shaft and right main shaft, left flywheel dish with be provided with cradle unwrapping wire bottom plate in the middle of the right flywheel dish, be provided with multiunit unwrapping wire mechanism on the cradle unwrapping wire bottom plate, multiunit unwrapping wire mechanism steerable unwrapping wire tension, multiunit unwrapping wire mechanism below is provided with synchronizer, synchronizer can cushion unwrapping wire tension of unwrapping wire mechanism.
Further, the paying-off mechanism comprises a paying-off seat rotatably arranged on the paying-off bottom plate of the cradle, a tension belt arranged on the paying-off seat and used for controlling paying-off tension of the paying-off seat, and a paying-off spool arranged above the paying-off seat.
Further, the synchronizing device comprises a pay-off seat belt pulley set arranged below the pay-off mechanism and a synchronous belt for driving the pay-off seat belt pulley set to operate, and the pay-off seat belt pulley set comprises a plurality of belt pulleys and tension friction plates arranged between two adjacent belt pulleys.
Further, the paying-off mechanism is 3 groups.
Further, the traction wheel set comprises an upper traction wheel set and a lower traction wheel set which are vertically arranged.
Further, a pay-off seat fixing pin for fixing the pay-off spool is arranged on the pay-off seat.
The invention also provides a solution for twisting and stranding of high elongation steel cords, comprising:
according to the technical specification, the paying-off tension of the host machine is adjusted;
threading is started from the wire collecting part, and the lead wire sequentially passes through the twister, the main shaft flywheel disc and the cradle paying-off seat;
putting the wire spool and the fixed pin into the groove and arranging the wire head and the lead wire to be knotted;
and (3) tightening the lead, winding the lead on the pulleys on the twisting device, winding the lead back and forth on the traction wheel set, and running the host after the lead passes through the winding device.
Further, the paying-off tension of the host machine is 3.5+/-0.3 Kgf.
Further, the operation speed of the host machine is 3000+/-200 revolutions per minute.
Compared with the prior art, the invention has the beneficial effects that:
the paying-off device of the high-elongation steel cord and the twisting and strand-shifting solving method thereof can keep the consistency of paying-off tension of the paying-off device, control strand-shifting phenomenon, improve elongation index, effectively improve the product quality of the high-elongation steel cord, and further solve the problem of extrusion broken wire of the high-elongation steel cord in the tire extrusion process.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of a pay-off device for a high elongation steel cord according to the present invention;
FIG. 2 is a schematic diagram of a high elongation steel cord paying-off device placement pulley set structure according to the present invention;
FIG. 3 is a schematic illustration of high elongation steel cord channeling;
in the figure:
1. a host; 2. a twister; 3. a traction wheel set; 4. a spindle flywheel disc; 5. cradle paying-off bottom plate; 6. paying-off seat; 7. a tension belt; 8. a pay-off seat fixing pin; 9. paying-off seat belt wheel group; 10. a synchronous belt; 11. a belt wheel; 12 tension friction plate.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings.
The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
Example 1
This embodiment introduces a pay-off of high elongation steel cord, includes: the device comprises a main machine 1, an over-twister 2, a traction wheel set 3, a main shaft flywheel disc 4, a cradle paying-off bottom plate 5, a paying-off mechanism and a synchronous mechanism; the pay-off mechanism mainly comprises a pay-off seat 6, a tension belt 7 and a pay-off seat fixing pin 8, and the synchronizing mechanism mainly comprises: pay-off seat band pulley group 9, hold-in range 10, pay-off seat band pulley group includes: pulley 11 and tension friction plate 12.
The machine tool model of the host machine 1 can be a DT3G double twisting machine, belongs to the machine type of internal paying-off and external winding, and has wider application.
The over-twister 2 is arranged on a main board of the host machine 1, and is driven by a motor to operate, so that twisting residual stress of the steel cord can be effectively eliminated, and a straightener tool is not required to be used for producing the high-elongation 3X 7X 0.20HE steel cord.
The traction wheel set 3 is arranged on the left side of the over-twister 2, the traction wheel set consists of an upper group of traction wheels and a lower group of traction wheels, 10 small grooves are formed in the traction wheels, and the steel cords run back and forth on the traction wheels in a winding mode.
The main shaft flywheel disk 4 consists of 2 groups of main shafts and 2 groups of flywheel disks, each flywheel disk is provided with 1 group of flywheel pulleys, and each main shaft is internally provided with 1 group of main shaft pulleys. The double twisting machine can be called a left main shaft, a right main shaft, a left flywheel disc, a right flywheel disc, a left pulley and a right pulley.
The cradle paying-off bottom plate 5 is arranged in the middle of the left flywheel disc and the right flywheel disc, the cradle paying-off bottom plate can swing freely after the cradle is assembled with the bearing, and 3 groups of paying-off seat devices are arranged on the cradle bottom plate.
The pay-off seat 6 is arranged on the cradle pay-off bottom plate 5, and the pay-off seat assembly bearing can rotate freely and is very flexible.
The tension belt 7 is arranged on the pay-off seat 6, and the tension spring is adjusted and the pay-off tension of the pay-off seat is controlled through the tension belt. The paying-off seat fixing pin 8 is arranged on the paying-off seat 6, and plays a role in fixing the paying-off spool and avoiding paying-off slipping phenomenon in the operation process.
The pay-off seat belt pulley group 9 is arranged below the 3 groups of pay-off seats, and the synchronous belt 10 drives the linkage belt pulley 11 to synchronously operate.
The tension friction plate 12 is arranged at the middle position of the two belt wheels 11 of the paying-off seat belt wheel set, and the paying-off tension of the paying-off seat in the synchronous operation process can be buffered and released by adjusting the tension of the friction plate, so that the paying-off tension is effectively kept stable.
Example 2
This example describes a solution to twist stranding using the pay-off of the high elongation steel cord of example 1: and after 3 groups of paying-off tension of the DT3G machine tool is adjusted according to the technical specification, starting threading steps and producing according to the process running speed. And a section of lead wire is taken and threaded from the wire collecting part, the lead wire passes through the main shaft flywheel disc 4 after passing through the twister 2, namely, the lead wire passes through the left main shaft pulley and the left flywheel pulley, then passes through the right flywheel pulley and the right main shaft pulley, and is pulled to the cradle wire releasing seat.
3 strand wire spool on the paying-off seat 6 and paying-off fixing pin 8 are slotted, wire heads are orderly arranged, each running guide wheel and each guide rod are orderly arranged, then the wire heads and the lead wires are knotted, and an 'infinity' knot is made to prevent slipping and wire breakage during running. After the lead wires are tightened, the pulleys of the left flywheel, the right flywheel and the pulleys of the left main shaft and the right main shaft are arranged, the lead wires are arranged on the pulleys of the over-twister 2, the lead wires are tightened and then wound on the traction wheel in a reciprocating manner, after the lead wires pass through the wire collecting device, after the wire is checked, the machine tool can be operated in a clicking manner to pass through the joint. And after the connector reaches the wire-collecting spool, starting the machine tool to normally operate and checking.
Taking the production of high-elongation 3×7x0.20HE structural steel cord as an example, the running speed of DT3G is controlled to 3000+ -200 rpm, in the paying-off running process, if the lengths of 3 strands are different, namely the diameters of paying-off spool are different, the circumferences of the paying-off spools are different, and the running speeds of the paying-off spools are different, so that when the rotating speed of the spool is changed, the tension friction plate 12 of the paying-off seat pulley group 9 under the synchronous belt 10 can generate an adjusting and releasing function, and the synchronous running of the paying-off spool is maintained through the self tension release. In normal production, the yarn with consistent fixed length is adopted for production, and the semi-finished yarn (with inconsistent winding length) is produced by a fixed-point machine tool.
In the running process, the paying-off tension of 3 strands is preferably controlled to be 3.5+/-0.3 Kgf, the consistency of paying-off tension is maintained, and excessive paying-off tension can ensure that the 3X 7X 0.20HE high-elongation steel cord after twisting does not generate strand channeling phenomenon or can reduce the strand channeling phenomenon, but the elongation rate is not too high, so that balance control is needed. In the use verification process, the pay-off device of the high-elongation steel cord and the twisting channeling solution method of the invention have the advantages of good elongation index, expected channeling control effect and stable product quality.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (8)
1. The paying-off device for the high-elongation steel cord is characterized by comprising a host machine (1), an over-twister (2) arranged on the host machine (1), a left traction wheel set (3) arranged on the over-twister (2), and a main shaft flywheel disc (4) arranged on the right side of the over-twister (2), wherein the main shaft flywheel disc (4) comprises a left flywheel disc, a right flywheel disc, a left main shaft and a right main shaft, a cradle paying-off bottom plate (5) is arranged between the left flywheel disc and the right flywheel disc, a plurality of groups of paying-off mechanisms are arranged on the cradle paying-off bottom plate (5), paying-off tension can be controlled by the plurality of groups of paying-off mechanisms, a synchronizing device is arranged below the plurality of groups of paying-off mechanisms, and the synchronizing device can buffer paying-off tension of the paying-off mechanisms and keep synchronous operation of paying-off spool wheels through self tension release; the paying-off mechanism comprises a paying-off seat (6) rotatably arranged on the cradle paying-off bottom plate (5), a tension belt (7) arranged on the paying-off seat (6) for controlling paying-off tension of the paying-off seat, and a paying-off spool arranged above the paying-off seat (6).
2. A pay-off device for high elongation steel cords according to claim 1, characterized in that the synchronizing device comprises a pay-off seat pulley group (9) arranged below the pay-off mechanism and a synchronous belt (10) driving the pay-off seat pulley group (9) to operate, wherein the pay-off seat pulley group (9) comprises a plurality of pulleys (11) and tension friction plates (12) arranged between two adjacent pulleys (11).
3. A high elongation steel cord paying-off device according to claim 1, wherein said paying-off mechanism is 3 sets.
4. A high elongation steel cord paying-off device according to claim 1, characterized in that the traction wheel set (3) comprises upper and lower traction wheel sets arranged vertically.
5. A paying-off device for high elongation steel cord according to claim 1, characterized in that the paying-off seat (6) is provided with a paying-off seat fixing pin (8) for fixing the paying-off spool.
6. A twist stranding solving method using the pay-off device for a high elongation steel cord according to claim 1, comprising:
according to the technical specification, the paying-off tension of the host machine is adjusted;
threading is started from the wire collecting part, and the lead wire sequentially passes through the twister, the main shaft flywheel disc and the cradle paying-off seat;
putting the wire spool and the fixed pin into the groove and arranging the wire head and the lead wire to be knotted;
and (3) tightening the lead, winding the lead on the pulleys on the twisting device, winding the lead back and forth on the traction wheel set, and running the host after the lead passes through the winding device.
7. The twist blow-by solving method according to claim 6, wherein the pay-off tension of the main machine is 3.5.+ -. 0.3Kgf.
8. The twist blow-by solving method according to claim 6 or 7, characterized in that the operation speed of the main machine is 3000±200 rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210226846.1A CN114575173B (en) | 2022-03-08 | 2022-03-08 | Paying-off device of high-elongation steel cord and twisting and stranding solution method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210226846.1A CN114575173B (en) | 2022-03-08 | 2022-03-08 | Paying-off device of high-elongation steel cord and twisting and stranding solution method thereof |
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| CN114575173A CN114575173A (en) | 2022-06-03 |
| CN114575173B true CN114575173B (en) | 2023-05-26 |
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| CN202210226846.1A Active CN114575173B (en) | 2022-03-08 | 2022-03-08 | Paying-off device of high-elongation steel cord and twisting and stranding solution method thereof |
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| CN116289278B (en) * | 2023-02-10 | 2024-12-20 | 嘉兴东方钢帘线有限公司 | A steel cord twisting system |
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| JP2000144588A (en) * | 1998-11-05 | 2000-05-26 | Kanai Hiroaki | Stranding method for multilayer stranded steel cord and system therefor |
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| CA2575351A1 (en) * | 2004-07-26 | 2006-02-02 | Maschinenfabrik Niehoff Gmbh & Co. Kg | Apparatus and method for stranding long winding material |
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| CN2711212Y (en) * | 2004-05-11 | 2005-07-20 | 石国平 | Machine for twisting and plying steel tyre cord |
| CN2858599Y (en) * | 2005-12-31 | 2007-01-17 | 国营江北机械厂 | Tension equilibrium controlling mechanism for steel cable |
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2022
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|---|---|---|---|---|
| JP2000144588A (en) * | 1998-11-05 | 2000-05-26 | Kanai Hiroaki | Stranding method for multilayer stranded steel cord and system therefor |
| JP2003249133A (en) * | 2002-02-22 | 2003-09-05 | Miyazaki Iron Works Ltd | Wire rod feeder |
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