CN202158838U - Length metering detection device for steel cords - Google Patents
Length metering detection device for steel cords Download PDFInfo
- Publication number
- CN202158838U CN202158838U CN2011202188835U CN201120218883U CN202158838U CN 202158838 U CN202158838 U CN 202158838U CN 2011202188835 U CN2011202188835 U CN 2011202188835U CN 201120218883 U CN201120218883 U CN 201120218883U CN 202158838 U CN202158838 U CN 202158838U
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- China
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- guide wheel
- rotation guide
- steel cord
- length
- metering
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- Expired - Fee Related
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model discloses a length metering detection device for steel cords, comprising a support frame. A first fixing shaft and a second fixing shaft in a pair are distributed on the support frame in parallel, a first rotary guide wheel and a second rotary guide wheel are correspondingly arranged on the first fixing shaft and the second fixing shaft, a photoelectric encoder rotating with the second rotary guide wheel synchronously is also arranged on the second fixing shaft, and a plurality of coiling grooves are respectively arranged on the first rotary guide wheel and the second rotary guide wheel and are used for completing 8-shaped winding of core strands of the steel cords between the first rotary guide wheel and the second rotary guide wheel. In the utility model, the detection to the length of the core strand replaces the traditional indirect detection to the whole cord, and the core strands of the steel cords do not slip, have stable tensile force and high metering precision during detection, therefore, the length metering detection device is particularly suitable for a stranding machine with winding internally. Tests show that the metering precision of a traditional length metering detection device for steel cords is about five per thousands, and the metering precision of the metering detection device of the utility model can be improved to be two per thousands.
Description
Technical field
The utility model relates to the device that is used to detect the steel cord length of producing in the steel cord plying equipment, refers to a kind of steel cord length metering pick-up unit particularly.
Background technology
In radial tyre steel cord production line, the metering precision is one of most important parameter in the steel cord plying equipment.Steel cord plying equipment can detect the length of producing the steel cord usually automatically, when producing the steel cord when detecting and reaching the length of technique initialization, and steel cord apparatus control system automatic stopping.If steel cord measured length less than the length of technique initialization, can influence the quality of finished steel cord; If steel cord measured length then can cause starting material to waste in a large number greater than the length of technique initialization.It is thus clear that dwindling error between steel cord measured length and the technique initialization length, promptly to improve the metering precision significant.
At present; Take-up buncher in steel cord plying equipment adopts mostly; Owing to self physical construction, can't directly detect the steel cord and become the later length of rope, so the metering of take-up bunchers detection all obtains through steel cord sth. made by twisting system principle indirect calculation in all.In this mode; Be used to detect the length near the not direct detection product line of switch of steel cord length; And the precision near switch is lower, and the deformation coefficient that the steel cord skids and tension variation causes the steel cord in testing process is fixing, thereby influence the precision of steel cord metering detection.
Summary of the invention
The purpose of the utility model is exactly to overcome the deficiency that indirect measurement steel cord length error is big, accuracy is low, provides a kind of and can guarantee in testing process that the steel cord is non-slip, tension stability, steel cord length metering pick-up unit that measuring accuracy is high.
For realizing above-mentioned purpose; The steel cord length metering pick-up unit that the utility model designed; Comprise bracing frame; First stationary shaft and second stationary shaft that pair of parallel is arranged are installed on the support frame as described above, are provided with the first rotation guide wheel and the second rotation guide wheel on said first stationary shaft and second stationary shaft accordingly, also be provided with the photoelectric encoder that can rotate synchronously with the second rotation guide wheel on said second stationary shaft; Respectively be provided with some roads winding slot on the said first rotation guide wheel and the second rotation guide wheel, said winding slot is used for steel cord core thigh and between the first rotation guide wheel and the second rotation guide wheel, does figure of eight winding.
Further, said first stationary shaft and second stationary shaft are arranged on the angle adjustment plate, and said angle adjustment plate is installed on the bracing frame through bolt assembly.Like this, can in time regulate the angle of inclination of first stationary shaft and second stationary shaft according to actual needs, so that steel cord core thigh reliably is wrapped between the two.
Again further, respectively be provided with three to four road winding slots on the said first rotation guide wheel and the second rotation guide wheel.Like this, steel cord core thigh can repeatedly twine between the first rotation guide wheel and the second rotation guide wheel in dislocation, can effectively increase the friction force between steel cord core thigh and the pick-up unit, and can stablize tension force.Simultaneously, can avoid repeatedly twining the line ball and the fracture of wire phenomenon that are caused at single winding slot takes place.
Further, the xsect of the winding slot on the said first rotation guide wheel and the second rotation guide wheel is V-shaped.The design of V-type winding slot more helps increasing the friction force between steel cord core thigh and the pick-up unit, and keeps twining reliable and stable.
The principle of work of the utility model is following: steel cord core thigh is made the figure of eight twine between the first rotation guide wheel and the second rotation guide wheel; Order about the first rotation guide wheel and the second rotation guide wheel rotation through the mobile of steel cord core thigh, and directly detect the length that steel cord core thigh advances through photoelectric encoder.
The advantage of the utility model is: the steel cord core thigh of doing figure of eight winding has effectively increased the friction force between its core thigh and the pick-up unit; Avoided the cord skidding; Stablized the tension force of cord, reduced the deformation coefficient that causes because of the tension force instability and changed.Simultaneously, cooperate the high precision photoelectric scrambler of rotation synchronously,, can significantly improve the precision of metering pick-up unit, obtain to detect data with actual immediate steel cord length through to of the deformation coefficient correction of steel cord core thigh to whole rope.The utility model is particularly suitable for interior take-up buncher, the results showed, the metering precision of conventional steel cord metering pick-up unit is about 5 ‰, and the metering precision of the metering pick-up unit of the utility model can be increased to 2 ‰.
Description of drawings
Fig. 1 is a kind of main sectional structure synoptic diagram of steel cord length metering pick-up unit.
Fig. 2 is first and second canoe synoptic diagram that rotates steel cord core thigh between guide wheel among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to describe in detail.
Steel cord length metering pick-up unit shown in the figure; Has a bracing frame 9 on the base 8 that is installed in steel cord plying equipment; The top of bracing frame 9 is movably installed with an angle adjustment plate 6 through bolt assembly 7; Welded and installed has first stationary shaft 10 and second stationary shaft 5 that pair of parallel is arranged on the angle adjustment plate 6; Be equipped with accordingly on first stationary shaft 10 and second stationary shaft 5 also be equipped with on the first rotation guide wheel 2 and second rotation guide wheel 3, the second stationary shaft 5 can with the second rotation guide wheel 3 photoelectric encoders 4 of rotations synchronously.Certainly, photoelectric encoder 4 also can be installed on first stationary shaft 10, rotates synchronously with the first rotation guide wheel 2, and its effect is the same.The first rotation guide wheel 2 is provided with three to four road winding slot 2a, on the second rotation guide wheel 3, also is provided with three to four road winding slot 3a.In the present embodiment, winding slot 2a, 3a on the first rotation guide wheel 2 and the second rotation guide wheel 3 respectively are provided with four roads, and its xsect is V-shaped, and steel cord core thigh 1 can be made the figure of eight and repeatedly twine between the first rotation guide wheel 2 and the second rotation guide wheel 3.
The course of work of above-mentioned steel cord length metering pick-up unit is such: the mode that steel cord core thigh 1 is twined with the figure of eight is around twining between the first rotation guide wheel 2 and the second rotation guide wheel 3; It mainly acts on: the one, increase the friction force between core thigh and the guide wheel, and overcome the relative slip of core thigh and guide wheel; The 2nd, reduce of the influence of core thigh front end tension variation, thereby stablize tension force rear end tension force.Steel cord core thigh 1 drives the first rotation guide wheel 2 and the second rotation guide wheel 3 rotates, and photoelectric encoder 4 also rotates with the second rotation guide wheel 3 synchronously.Get the Programmable Logic Controller PLC in the A phase signals entering external control cabinet in the photoelectric encoder 4; Programmable Logic Controller PLC detects pulse signal; Calculate the number of turns that the second rotation guide wheel 3 rotates,, thereby calculate the length that tapping cord core thigh 1 advances through the girth (the V-type bottom land according to winding slot calculates) of the second rotation guide wheel 3; According to the length variations coefficient of steel cord core thigh 1, finally just can obtain the length of whole rope again to whole rope.
If steel cord core thigh 1 diameter is d, the second rotation guide wheel, 3 diameters are D, and the number of turns that the second rotation guide wheel 3 rotates is n, if steel cord core thigh 1 and second rotates between the guide wheel 3 do not skid, so the steel cord core thigh 1 length s1=n π (D+d) that advances.If tension stability, the length s2=Ks1 that advances of whole rope, K is the length variations coefficient of core thigh to whole rope, K is a steady state value under the state of tension stability.Could guarantee the metering precision by tension stability it is thus clear that only overcoming skids and guarantee.The utility model is just through this mode of repeatedly twining of steel cord core thigh 1 at the first rotation guide wheel 2 and the second rotation guide wheel 3; Overcome and skidded and guarantee tension stability; Precision through high-precision photoelectric encoder 4 assurance signals collecting improves the metering precision jointly.
Claims (5)
1. steel cord length metering pick-up unit; Comprise bracing frame (9); It is characterized in that: first stationary shaft (10) and second stationary shaft (5) that pair of parallel is arranged are installed on the support frame as described above (9); Be provided with the first rotation guide wheel (2) and the second rotation guide wheel (3) on said first stationary shaft (10) and second stationary shaft (5) accordingly; Also be provided with the photoelectric encoder (4) that can rotate synchronously with the second rotation guide wheel (3) on said second stationary shaft (5); Respectively be provided with some roads winding slot (2a, 3a) on the said first rotation guide wheel (2) and the second rotation guide wheel (3), said winding slot (2a, 3a) is used for steel cord core thigh (1) and between the first rotation guide wheel (2) and the second rotation guide wheel (3), does figure of eight winding.
2. steel cord length metering pick-up unit according to claim 1; It is characterized in that: said first stationary shaft (10) and second stationary shaft (5) are arranged on the angle adjustment plate (6), and said angle adjustment plate (6) is installed on the bracing frame (9) through bolt assembly (7).
3. steel cord length metering pick-up unit according to claim 1 and 2 is characterized in that: respectively be provided with three to four road winding slots (2a, 3a) on the said first rotation guide wheel (2) and the second rotation guide wheel (3).
4. steel cord length metering pick-up unit according to claim 1 and 2 is characterized in that: the xsect of the winding slot (2a, 3a) on the said first rotation guide wheel (2) and the second rotation guide wheel (3) is V-shaped.
5. steel cord length metering pick-up unit according to claim 3 is characterized in that: the xsect of the winding slot (2a, 3a) on the said first rotation guide wheel (2) and the second rotation guide wheel (3) is V-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202188835U CN202158838U (en) | 2011-06-24 | 2011-06-24 | Length metering detection device for steel cords |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202188835U CN202158838U (en) | 2011-06-24 | 2011-06-24 | Length metering detection device for steel cords |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202158838U true CN202158838U (en) | 2012-03-07 |
Family
ID=45766473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202188835U Expired - Fee Related CN202158838U (en) | 2011-06-24 | 2011-06-24 | Length metering detection device for steel cords |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202158838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107082319A (en) * | 2017-01-18 | 2017-08-22 | 奧马迪机器人有限公司 | One kind crosses line metering device |
-
2011
- 2011-06-24 CN CN2011202188835U patent/CN202158838U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107082319A (en) * | 2017-01-18 | 2017-08-22 | 奧马迪机器人有限公司 | One kind crosses line metering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20140624 |
|
| EXPY | Termination of patent right or utility model |