CN110399651A - A kind of customization spinneret dynamic balance analysis method - Google Patents
A kind of customization spinneret dynamic balance analysis method Download PDFInfo
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- CN110399651A CN110399651A CN201910603477.1A CN201910603477A CN110399651A CN 110399651 A CN110399651 A CN 110399651A CN 201910603477 A CN201910603477 A CN 201910603477A CN 110399651 A CN110399651 A CN 110399651A
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- spinneret
- inner tube
- unbalance
- total amount
- customization
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Abstract
The invention discloses a kind of customization spinneret dynamic balance analysis methods, including calculate the total amount of unbalance of equipment；The spinneret curve used according to the equipment establishes the interior tube model of different length and wall thickness, calculates total amount of unbalance of each inner tube, and forms the table of comparisons of the total amount of unbalance of each inner tube, length and wall thickness；Inner tube specification of the selection in the total amount of unbalance allowed band of the equipment.Customization spinneret dynamic balance analysis method of the invention can be under the premise of improving spinneret steel transportation amount, and the amount of unbalance of spinneret, which is maintained at former Laying head, to be allowed in amount of unbalance, improves plant produced efficiency and economic benefit.
Description
Technical field
The present invention relates to spinneret technical field, in particular to a kind of customization spinneret dynamic balance analysis method.
Background technique
Laying head is the key equipment on high speed wire rod finishing block production line, and the water cooling section of cooling line is controlled after finishing mill
Between scattered volume transporter.And spinneret is as one of most important component of Laying head, wire rod is by pinch rod and spinning power traction
Under the comprehensive functions such as motive force, relative inertness power, frictional force, the normal pressure risen, changing linear motion is screw, forms diameter
About the ballast coil of Ф 1080mm spues from spinneret.
For many years, generally approve in the industry:, can by radially limiting hot-rolled product in a smaller space
With the rolling of higher speed.The method for limiting hot-rolled product radially has very much, as notification number is CN100333848C
Patent document discloses a kind of Laying pipe, which includes outer tube, which includes first straight line shape part, the second spiral shape
Part and third circular portion, outer tube is interior inserted with inner tube, and the overall diameter of inner tube is substantially equal to the interior diameter of the outer tube, inner tube
Length is slightly longer than the length of first straight line shape part, and inner and outer tubes and the arrival end welding in rolled products each other
It is fixed.
The Laying pipe reduces the aperture size of spinneret using inner tube, and hot-rolled product is radially limited in smaller sky
Between within, to improve to the introductory of hot-rolled product, so as to the rolling of higher speed.
But Laying head is for the ready-made dynamic balancing of former single layer spinneret, and mass center can deviate after inner tube is added in single layer spinneret
The mass center of former single layer spinneret, and the variation of centroid position while the amount of unbalance that will affect former single layer spinneret.
Amount of unbalance after single layer spinneret addition inner tube in former Laying head as still allowed then to illustrate this in amount of unbalance
The double-deck spinneret can directly replace former single layer spinneret and use on former Laying head, not need to do dynamic balancing again, guarantee to spit
The normal operation of silk machine；Conversely, must just shut down and be done again for the double-deck spinneret as being more than that former Laying head allows amount of unbalance
Dynamic balancing, but the stop production to overhaul of this unplanned property, will have a direct impact on the normal production order of factory, time cost and stop production at
This can bring additional burden to factory.
Summary of the invention
The purpose of the present invention is to provide a kind of customization spinneret dynamic balance analysis methods, it can improve spinneret
Under the premise of steel transportation amount, the amount of unbalance of spinneret, which is maintained at former Laying head, to be allowed in amount of unbalance, improves plant produced effect
Rate and economic benefit.
Above-mentioned purpose of the invention has the technical scheme that
A kind of customization spinneret dynamic balance analysis method, comprising the following steps:
Step 1: calculating the total amount of unbalance of equipment；
Step 2: the spinneret curve used according to the equipment establishes the interior tube model of different length and wall thickness, calculate each
Total amount of unbalance of inner tube, and form the table of comparisons of the total amount of unbalance of each inner tube, length and wall thickness；
Step 3: inner tube specification of the selection in the total amount of unbalance allowed band of the equipment.
The present invention is further arranged to: the basic data of the total amount of unbalance of the equipment of the step 1 is derived from following procedure:
S1, the running speed for determining equipment, precision grading and self weight；
S2, the unit mass amount of unbalance that permission is found by ISO 1940-1 dynamic balance running standard, are then calculated equipment
Total amount of unbalance.
The present invention is further arranged to: the step 2 includes following procedure:
S1,3D scan spinneret used in the equipment and establish CAD model；
S2, the interior tube model that each specification is established according to the CAD model；
S3, the center-of-mass coordinate and weight that each inner tube is calculated by CAD software；
S4, weight obtain total amount of unbalance of corresponding inner tube multiplied by eccentricity；
S5, the table of comparisons for forming total amount of unbalance, length and wall thickness.
The present invention is further arranged to: inner tube scale lengths in the process S2 are 500-1500mm, with a thickness of 1-7~
9mm。
The present invention is further arranged to: the spinneret inner tube specification includes the length and wall thickness of inner tube.
The present invention is further arranged to: the spinneret is the double-deck spinneret, and the pipeline positioned at internal layer is spinneret inner tube；
It is lining in outer tube in said inner tube, said inner tube is by constraining the movement relative to outer tube with the CONTACT WITH FRICTION of outer tube.
The present invention is further arranged to: the spinneret is the double-deck spinneret, and the pipeline positioned at internal layer is spinneret inner tube；
It is lining in outer tube in said inner tube, said inner tube and outer tube Joint.
The present invention is further arranged to: the spinneret is multiple tube, is made of the pipeline of two sections of different inner diameters, two pipelines
The pipeline that difference in internal diameters is formed is spinneret inner tube.
In conclusion the invention has the following advantages: the amount of unbalance of spinneret to be limited in the permission of Laying head
Within amount of unbalance, so that spinneret is directly replaced former spinneret and is used on former Laying head, do not need to do dynamic balancing again,
Influence of the stop production to overhaul of unplanned property to the normal production order of factory is avoided, plant produced efficiency and economic benefit are mentioned
It is all significant for rising.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the double-deck spinneret in embodiment；
Fig. 2 is the structural schematic diagram of compound spinneret in embodiment.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment: a kind of customization spinneret dynamic balance analysis method mainly comprises the steps of:
Step 1: calculating total amount of unbalance of Laying head.
The basic data of the total amount of unbalance of Laying head is derived from following procedure:
1, running speed, precision grading and the self weight of Laying head are determined；
2, the unit mass amount of unbalance that permission is found by ISO 1940-1 dynamic balance running standard, is then calculated Laying head
Total amount of unbalance.
Step 2: calculating total amount of unbalance of inner tube.
1,3D scans the CAD model of single layer spinneret；
2, by the interior tube model of each specification of the model foundation (length 500-1500mm, wall thickness 1-7mm~9mm)；As shown in Figure 1,
Spinneret is bimetallic tube, and including outer tube and the interior pipeline for being lining in outer tube, which is inner tube 1, and inner tube 1 can be with the fixed company of outer tube
It connects, fixed mode is chosen as threaded connection or welding or other fixed connection modes；Inner tube 1 can also be slided with outer tube to be connected
It connects, the two transition fit, inner tube 1 is by constraining the movement relative to outer tube with the CONTACT WITH FRICTION of outer tube.
As shown in Fig. 2, spinneret is multiple tube, it is made of the pipeline of two sections of same outer diameters, different inner diameters, wherein internal diameter is smaller
Input terminal of the pipeline as spinneret, inner tube 1 of the pipeline that the difference in internal diameters of two segment pipes is formed as the spinneret.
3, each inner tube center-of-mass coordinate is calculated with CAD software；
4, the eccentricity and weight of every section of inner tube are determined for one section with ten centimetres；
5, weight obtains the amount of unbalance of every section of inner tube multiplied by eccentricity, and then obtains total amount of unbalance of inner tube；
6, the table of comparisons of total amount of unbalance, length and wall thickness is formed.
Step 3: determining inner tube specification.
Inner tube specification of the selection in the total amount of unbalance allowed band of Laying head.
Such as the equipment of G6.3 grading, running speed 1000rpm are brought into ISO 1940-1 standard and know often
The amount of unbalance that kilogram equipment allows is 60mmg, if the self weight of the equipment is 1500 kilograms, then maximum allowable 90000mmg
Total amount of unbalance.
According to above-mentioned steps, the inner tube specification table of comparisons made based on the spinneret curve that the equipment uses is as shown in table 1.
Table 1
In table 1, length unit mm；Wall thickness unit is mm；Amount of unbalance unit is mmg.
The length of interior tube model is determining according to " Pipe Space Curve of High-speed Laying Head research and improvement ", by
The spinning inside pipe wall pressure distribution map and spinning inside pipe wall friction distribution map that the paper is recorded are it is found that in spinneret
Wall friction is concentrated mainly at the position away from spinning tube inlet 500mm-1000mm, so the length of interior tube model is excellent
It is selected as 500-1000mm；In practical application, inner tube length can extend to 1500mm.
The thickness of interior tube model is determined according to spinning pipe outside diameter, and outer diameter is the outer tube of 48.3mm, corresponding 1-7mm wall thickness
Inner tube；The inner tube of wall thickness 9mm is only applied at present in the outer tube that outer diameter is 51mm.
To sum up, factory can be directed to different working conditions, different size inner tube be selected according to target steel transportation amount, to guarantee to spin
The subsequent normal operation of machine, reduce because replacement pipeline caused by reform dynamic balancing, finally effectively improve factory production efficiency and
Economic benefit.
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.
Claims (8)
1. a kind of customization spinneret dynamic balance analysis method, comprising the following steps:
Step 1: calculating the total amount of unbalance of equipment；
Step 2: the spinneret curve used according to the equipment establishes the interior tube model of different length and wall thickness, calculate each
Total amount of unbalance of inner tube, and form the table of comparisons of the total amount of unbalance of each inner tube, length and wall thickness；
Step 3: inner tube specification of the selection in the total amount of unbalance allowed band of the equipment.
2. customization spinneret dynamic balance analysis method according to claim 1, it is characterised in that: the step 1 is set
The basic data of standby total amount of unbalance is derived from following procedure:
S1, the running speed for determining equipment, precision grading and self weight；
S2, the unit mass amount of unbalance that permission is found by ISO 1940-1 dynamic balance running standard, are then calculated equipment
Total amount of unbalance.
3. customization spinneret dynamic balance analysis method according to claim 1, it is characterised in that: the step 2 includes
Following procedure:
S1,3D scan spinneret used in the equipment and establish CAD model；
S2, the interior tube model that each specification is established according to the CAD model；
S3, the center-of-mass coordinate and weight that each inner tube is calculated by CAD software；
S4, weight obtain total amount of unbalance of corresponding inner tube multiplied by eccentricity；
S5, the table of comparisons for forming total amount of unbalance, length and wall thickness.
4. customization spinneret dynamic balance analysis method according to claim 3, it is characterised in that: in the process S2
Inner tube scale lengths are 500-1500mm, with a thickness of 1-7 ~ 9mm.
5. customization spinneret dynamic balance analysis method according to claim 1, it is characterised in that: the spinneret inner tube
Specification includes the length and wall thickness of inner tube.
6. customization spinneret dynamic balance analysis method according to claim 1, it is characterised in that: the spinneret is double
Layer spinneret, the pipeline positioned at internal layer are spinneret inner tube;Be lining in outer tube in said inner tube, said inner tube by with outer tube
CONTACT WITH FRICTION constrains the movement relative to outer tube.
7. customization spinneret dynamic balance analysis method according to claim 1, it is characterised in that: the spinneret is double
Layer spinneret, the pipeline positioned at internal layer are spinneret inner tube；It is lining in outer tube in said inner tube, said inner tube is mutually solid with outer tube
It connects.
8. customization spinneret dynamic balance analysis method according to claim 1, it is characterised in that: the spinneret is multiple
Pipe is closed, is made of the pipeline of two sections of different inner diameters, the pipeline that two internal diameter of the pipeline differences are formed is spinneret inner tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910603477.1A CN110399651A (en) | 2019-07-06 | 2019-07-06 | A kind of customization spinneret dynamic balance analysis method |
| CN201911182040.1A CN110781613B (en) | 2019-07-06 | 2019-11-27 | Customized spinning tube dynamic balance analysis method |
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| CN201910603477.1A CN110399651A (en) | 2019-07-06 | 2019-07-06 | A kind of customization spinneret dynamic balance analysis method |
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| CN201911182040.1A Active CN110781613B (en) | 2019-07-06 | 2019-11-27 | Customized spinning tube dynamic balance analysis method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110781613A (en) * | 2019-07-06 | 2020-02-11 | 北京杜根鸿运科技发展有限公司 | Customized spinning pipe dynamic balance analysis method |
| CN110842037A (en) * | 2019-07-06 | 2020-02-28 | 北京杜根鸿运科技发展有限公司 | Embedded type spinning pipe and specification selection method for internal pipe of embedded type spinning pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101642777A (en) * | 2009-08-24 | 2010-02-10 | 哈尔滨哈飞工业有限责任公司 | Technological method for solving on-site dynamic balance of wire-feeding machine by using Proof dynamic balancing instrument |
| CN101832839B (en) * | 2010-02-09 | 2012-05-23 | 江苏大学 | Pre-equilibrium method of high-speed rotator with complicated structure |
| CN103230939B (en) * | 2013-05-08 | 2015-02-25 | 中冶赛迪工程技术股份有限公司 | Silking machine spindle assembly, silking machine and method for balancing dynamic unbalance of silking machine |
| CN110238205A (en) * | 2019-07-06 | 2019-09-17 | 北京杜根鸿运科技发展有限公司 | A kind of spinneret of self-healing |
| CN110399651A (en) * | 2019-07-06 | 2019-11-01 | 北京杜根鸿运科技发展有限公司 | A kind of customization spinneret dynamic balance analysis method |
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2019
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110781613A (en) * | 2019-07-06 | 2020-02-11 | 北京杜根鸿运科技发展有限公司 | Customized spinning pipe dynamic balance analysis method |
| CN110842037A (en) * | 2019-07-06 | 2020-02-28 | 北京杜根鸿运科技发展有限公司 | Embedded type spinning pipe and specification selection method for internal pipe of embedded type spinning pipe |
| CN110842037B (en) * | 2019-07-06 | 2021-12-10 | 北京杜根鸿运科技发展有限公司 | Embedded type spinning pipe and specification selection method for internal pipe of embedded type spinning pipe |
| CN110781613B (en) * | 2019-07-06 | 2023-09-19 | 北京杜根鸿运科技发展有限公司 | Customized spinning tube dynamic balance analysis method |
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| CN110781613A (en) | 2020-02-11 |
| CN110781613B (en) | 2023-09-19 |
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