CN112556535B - Cable sheath extrusion thickness measuring method - Google Patents
Cable sheath extrusion thickness measuring method Download PDFInfo
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- CN112556535B CN112556535B CN202011454932.5A CN202011454932A CN112556535B CN 112556535 B CN112556535 B CN 112556535B CN 202011454932 A CN202011454932 A CN 202011454932A CN 112556535 B CN112556535 B CN 112556535B
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- 238000001125 extrusion Methods 0.000 title claims abstract description 126
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005259 measurement Methods 0.000 claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000000691 measurement method Methods 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a cable sheath extrusion thickness measuring method applied to the technical field of cable manufacture, which comprises the following measuring steps: calculating a thickness value D of a tape measure with the diameter of the cable core being +2 times before extrusion molding, and calculating a cable jacket measurement control length value l 1 after extrusion molding of the cable jacket; measuring the actual length value l 2 of the cable sleeve after the cable sleeve of the cable sleeve to be measured is extruded; comparing the actual length value l 2 of the cable sleeve after the cable sleeve is extruded with the control length value l 1 of the cable sleeve after the cable sleeve is extruded, and if the two values are equal or the actual length value l 2 of the cable sleeve after the cable sleeve is extruded is in the allowable error value range of the control length value l 1 of the cable sleeve after the cable sleeve is extruded, indicating that the thickness dimension of the cable sleeve meets the requirement.
Description
Technical Field
The invention belongs to the technical field of cable manufacture, and particularly relates to a cable sheath extrusion thickness measuring method.
Background
In the cable manufacturing process, the control level of the thickness of the extrusion layer of the cable sheath directly influences the product quality and the production cost, the thickness of the sheath layer is too large, the product cost is increased, and the product is disqualified if the thickness is too small. At present, the sheath layer thickness control method commonly adopted in the cable production practice is as follows: in the extrusion production process, a measuring instrument is used for measuring the outer diameter or equivalent outer diameter (namely the outer diameter calculated by measuring the circumference) of the extruded cable, the outer diameter is compared with the outer diameter of the cable core before extrusion, the actual thickness of the sheath layer is calculated, the glue outlet amount of the host machine of the fine-tuning extruder is measured and corrected for multiple times, and finally the extrusion thickness of the sheath layer reaches the required range. When the measuring is performed according to the control method, a vernier caliper and a tape measure are mostly selected for the selection of specific measuring instruments. From the feedback of the control effect, the method has some inherent defects and shortcomings, and mainly comprises the following steps: firstly, a vernier caliper is used for measuring the outer diameter and controlling the outer diameter, because most cable cores stranded in the previous working procedure are not round in practice, the periphery of the cable after the cable sheath is extruded is also not round, the numerical difference of the outer diameters of the cables measured in different directions of the same section is larger, and the fluctuation range of the thickness of the actual sheath layer is larger; secondly, the circumference is measured and controlled by a tape measure, and although errors caused by non-rounding of the cable are effectively overcome by measuring the outer circumference of the cable, the circumference is also subject to unique errors by the tape measure, and the main appearance is that the circumference measured by the tape measure is not the circumference of the cross section of the cable, but the spiral rising length. Such errors depend on the width, thickness of the tape measure and its own accuracy of display.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the defects of the prior art, the cable sheath extrusion thickness measuring method is simple in steps, the circumference obtained by measuring by using a tape measure is corrected to be not the circumference of the cross section of an object, but the measurement error caused by the spiral rising length, the thickness of an extrusion sheath layer is controlled and corrected by the equivalent outer diameter value of the cable sheath, and the thickness processing quality of the extrusion sheath layer is improved.
The technical scheme adopted by the invention is as follows:
The invention relates to a cable sheath extrusion thickness measuring method, which comprises the following measuring steps:
1) Obtaining a measurement basic value, wherein the measurement basic value comprises an actual measurement length value l of a cable core before extrusion molding, a tape width value M, a tape thickness value t, an external diameter value d of the cable core before extrusion molding and a control thickness value t 1 of a cable sheath after extrusion molding;
2) The thickness value D of the tape measure of +2 times the diameter of the cable core before extrusion was calculated,
3) Calculating a cable sheath measurement control length value l 1 after extrusion molding of the cable sheath; measuring the actual length value l of the cable sheath after the cable sheath extrusion molding of the cable sheath to be measured 2;
4) Comparing the actual length measured value l 2 of the cable sleeve after extrusion molding with the control length measured value l 1 of the cable sleeve after extrusion molding, and if the two values are equal or the actual length measured value l 2 of the cable sleeve after extrusion molding is in the allowable error value range of the control length measured value l 1 of the cable sleeve after extrusion molding, indicating that the thickness of the cable sleeve meets the requirement.
When calculating the thickness value D of the cable core diameter +2 times of the tape measure of the cable core before extrusion molding, the following formula is adopted: d=d+ 2*t, (pi D) 2＝l2+M2, the thickness value D of the cable core diameter+2 times the thickness of the tape before extrusion molding is calculated, and the value of l 2+M2 is calculated according to the thickness value D of the cable core diameter+2 times the thickness of the tape before extrusion molding.
When calculating the cable sheath measurement control length value l 1 after cable sheath extrusion molding, according to the formula: l 1＝SQRT((PI()*(d+2*t+2*t1))2–M2) and calculating the cable sheath measurement control length value l 1 after the cable sheath is extruded.
If the actual length value l 2 of the cable sheath after extrusion molding is not equal to the control length value l 1 of the cable sheath after extrusion molding, or the actual length value l 2 of the cable sheath after extrusion molding exceeds the allowable error value range of the control length value l 1 of the cable sheath after extrusion molding, at this time, when l 2 is greater than l 1, the traction speed can be increased or the screw speed of the extruder can be reduced in the actual production process, so that the actual measured value l 2 is controlled in the allowable error value range of the theoretical calculation control value l 1; when l 2 is smaller than l 1, the drawing speed can be reduced or the screw speed of the extruder can be increased in the actual production process, so that the actual measured value l 2 is controlled in the range of the error value allowed by the theoretical calculated control value l 1.
SQRT () is an open square root function and PI () is a perimeter rate function value.
The actual measured length value l of the cable core before extrusion molding is the measured length corresponding to the upper scale mark and the lower scale mark of the tape after the tape rotates around the cable core before extrusion molding for one circle.
L represents the length of the tape which is unwound by one revolution of the tape, and H represents the height of the tape which is raised by one revolution of the cable core before extrusion.
By adopting the technical scheme of the invention, the following beneficial effects can be obtained:
The method for measuring the extrusion thickness of the cable sheath changes the control method that the measuring instrument is used for measuring the outer diameter or equivalent outer diameter (namely the outer diameter calculated by measuring the circumference) of the cable after extrusion in the prior art, the actual thickness of the sheath layer is calculated by comparing the outer diameter with the outer diameter of the cable core before extrusion, and the extrusion thickness of the sheath layer reaches the required range finally by finely adjusting the glue outlet amount of the host machine of the extruder and measuring and correcting for multiple times. The obtained measurement basic value is used for obtaining a cable sleeve measurement actual length value l 2 after cable sheath extrusion and a cable sleeve measurement control length value l 1 after cable sheath extrusion, and then the cable sleeve measurement actual length value l 2 after cable sheath extrusion is compared with a cable sleeve measurement control length value l 1 after cable sheath extrusion, and if the two values are equal or the cable sleeve measurement actual length value l 2 after cable sheath extrusion is in an error value range allowed by the cable sleeve measurement control length value l 1 after cable sheath extrusion, the thickness dimension of the cable sheath meets the requirement. Thus, the method of obtaining the thickness of the sheath by comparing the outer diameter of the cable after extrusion or the equivalent outer diameter (i.e. the outer diameter calculated by measuring the circumference) with the outer diameter of the cable core before extrusion is not adopted. The method adopts perimeter contrast, and the perimeter obtained by measurement is in view of the fact that the perimeter obtained by cable measurement is not the perimeter of the cross section of the object, and the measurement errors caused by the width and the thickness of the tape measure, so that the measurement accuracy is influenced. The method for measuring the extrusion thickness of the cable sheath has simple steps, corrects the circumference obtained by measuring the tape measure not the circumference of the cross section of the object but the measurement error caused by the spiral rising length through the quickly obtained measurement basic value, controls and corrects the thickness of the extrusion sheath layer through the equivalent outer diameter value of the cable sheath, and improves the processing quality of the thickness of the extrusion sheath layer.
Drawings
The following is a brief description of what is expressed in the drawings of this specification and the references in the drawings:
FIG. 1 is a schematic view of the tape measure of the present invention when deployed;
the reference numerals in the figures are respectively: 1. a cable core (cable core); 2. a tape measure.
Detailed Description
The following describes the shape, structure, mutual position and connection relation between parts, action of parts and working principle of the specific embodiment of the present invention by describing examples in further detail:
As shown in fig. 1, the invention relates to a method for measuring the extrusion thickness of a cable sheath, which comprises the following measuring steps: 1) Obtaining a measurement basic value, wherein the measurement basic value comprises an actual measurement length value l of a cable core before extrusion molding, a tape width value M, a tape thickness value t, an external diameter value d of the cable core before extrusion molding and a control thickness value t 1 of a cable sheath after extrusion molding; 2) Calculating a thickness value D of a tape measure with the diameter of the cable core being +2 times before extrusion molding, and 3) calculating a cable jacket measurement control length value l 1 after cable jacket extrusion molding; and then measuring the actual length value l 2; of the cable sheath after cable sheath extrusion, comparing the actual length value l 2 of the cable sheath after cable sheath extrusion with the control length value l 1 of the cable sheath after cable sheath extrusion, and if the two values are equal or the actual length value l 2 of the cable sheath after cable sheath extrusion is in the allowable error value range of the control length value l 1 of the cable sheath after cable sheath extrusion, indicating that the thickness size of the cable sheath meets the requirement. The method comprises the steps of changing the outer diameter or equivalent outer diameter (namely the outer diameter calculated by measuring the circumference) of the cable after extrusion by using a measuring instrument in the prior art, comparing the outer diameter with the outer diameter of the cable core before extrusion, calculating the actual thickness of the sheath layer, finely adjusting the glue outlet amount of the host machine of the extruder, measuring and correcting for a plurality of times, and finally enabling the extrusion thickness of the sheath layer to reach the control method of the required range. The obtained measurement basic value is used for obtaining a cable sleeve measurement actual length value l 2 after cable sheath extrusion and a cable sleeve measurement control length value l 1 after cable sheath extrusion, and then the cable sleeve measurement actual length value l 2 after cable sheath extrusion is compared with a cable sleeve measurement control length value l 1 after cable sheath extrusion, and if the two values are equal or the cable sleeve measurement actual length value l 2 after cable sheath extrusion is in an error value range allowed by the cable sleeve measurement control length value l 1 after cable sheath extrusion, the thickness dimension of the cable sheath meets the requirement. Thus, the method of obtaining the thickness of the sheath by comparing the outer diameter of the cable after extrusion or the equivalent outer diameter (i.e. the outer diameter calculated by measuring the circumference) with the outer diameter of the cable core before extrusion is not adopted. The method adopts perimeter contrast, and the perimeter obtained by measurement is in view of the fact that the perimeter obtained by cable measurement is not the perimeter of the cross section of the object, and the measurement errors caused by the width and the thickness of the tape measure, so that the measurement accuracy is influenced. The method for measuring the extrusion thickness of the cable sheath has simple steps, corrects the circumference obtained by measuring the tape measure not the circumference of the cross section of the object but the measurement error caused by the spiral rising length through the quickly obtained measurement basic value, controls and corrects the thickness of the extrusion sheath layer through the equivalent outer diameter value of the cable sheath, and improves the processing quality of the thickness of the extrusion sheath layer.
According to the cable sheath extrusion thickness measurement method, when the thickness value D of the measuring tape with the diameter of +2 times of the cable core diameter of the cable core before extrusion molding is calculated, the method is characterized by comprising the following steps: d=d+ 2*t, (pi D) 2＝l2+M2, the thickness value D of the cable core diameter+2 times the thickness of the tape before extrusion molding is calculated, and the value of l 2+M2 is calculated according to the thickness value D of the cable core diameter+2 times the thickness of the tape before extrusion molding. When calculating the cable sheath measurement control length value l 1 after cable sheath extrusion molding, according to the formula: l 1＝SQRT((PI()*(d+2*t+2*t1))2–M2) and calculating the cable sheath measurement control length value l 1 after the cable sheath is extruded. By means of the structure, the cable sheath measuring control length value l 1 after cable sheath extrusion molding can be accurately obtained, and the actual length value l 2 measured by the cable sheath after cable sheath extrusion molding is compared. Therefore, accurate judgment on the thickness of the sheath of the cable meeting the standard requirement is effectively realized.
If the actual length value l 2 of the cable sheath after extrusion molding is not equal to the control length value l 1 of the cable sheath after extrusion molding, or the actual length value l 2 of the cable sheath after extrusion molding exceeds the allowable error value range of the control length value l 1 of the cable sheath after extrusion molding, at this time, when l 2 is greater than l 1, the traction speed can be increased or the screw speed of the extruder can be reduced in the actual production process, so that the actual measured value l 2 is controlled in the allowable error value range of the theoretical calculation control value l 1; when l 2 is smaller than l 1, the drawing speed can be reduced or the screw speed of the extruder can be increased in the actual production process, so that the actual measured value l 2 is controlled in the range of the error value allowed by the theoretical calculated control value l 1. According to the structure, when the numerical value difference after comparison is large, the parameters are required to be corrected, the thickness of the processed sheath is adjusted, and finally, the thickness of the sheath of the processed cable meets the set standard, and the quality is improved.
In the present invention, SQRT () is an open square root function, and PI () is a peripheral rate function value.
The actual measured length value l of the cable core before extrusion molding is the measured length corresponding to the upper scale mark and the lower scale mark of the tape after the tape rotates around the cable core before extrusion molding for one circle. That is, the length value is a length measured in consideration of the spiral rise of the tape measure when it is wound around the cable one turn. The length L of the tape which is extended by one revolution of the tape is the length of the tape which is extended by one revolution of the tape (is the circumference of the cross section of the object), and H is the height of the tape which rises by one revolution of the cable core before extrusion.
The method for measuring the extrusion thickness of the cable sheath changes the control method that the measuring instrument is used for measuring the outer diameter or equivalent outer diameter (namely the outer diameter calculated by measuring the circumference) of the cable after extrusion in the prior art, the actual thickness of the sheath layer is calculated by comparing the outer diameter with the outer diameter of the cable core before extrusion, and the extrusion thickness of the sheath layer reaches the required range finally by finely adjusting the glue outlet amount of the host machine of the extruder and measuring and correcting for multiple times. The obtained measurement basic value is used for obtaining a cable sleeve measurement actual length value l 2 after cable sheath extrusion and a cable sleeve measurement control length value l 1 after cable sheath extrusion, and then the cable sleeve measurement actual length value l 2 after cable sheath extrusion is compared with the cable sleeve measurement control length value l1 after cable sheath extrusion, and if the two values are equal or the cable sleeve measurement actual length value l 2 after cable sheath extrusion is in the error value range allowed by the cable sleeve measurement control length value l 1 after cable sheath extrusion, the thickness dimension of the cable sheath meets the requirement. Thus, the method of obtaining the thickness of the sheath by comparing the outer diameter of the cable after extrusion or the equivalent outer diameter (i.e. the outer diameter calculated by measuring the circumference) with the outer diameter of the cable core before extrusion is not adopted. The method adopts perimeter contrast, and the perimeter obtained by measurement is in view of the fact that the perimeter obtained by cable measurement is not the perimeter of the cross section of the object, and the measurement errors caused by the width and the thickness of the tape measure, so that the measurement accuracy is influenced. The method for measuring the extrusion thickness of the cable sheath has simple steps, corrects the circumference obtained by measuring the tape measure not the circumference of the cross section of the object but the measurement error caused by the spiral rising length through the quickly obtained measurement basic value, controls and corrects the thickness of the extrusion sheath layer through the equivalent outer diameter value of the cable sheath, and improves the processing quality of the thickness of the extrusion sheath layer.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the specific implementation of the invention is not limited by the foregoing, but rather is within the scope of the invention as long as various modifications are made by the method concept and technical scheme of the invention, or the concept and technical scheme of the invention are directly applied to other occasions without modification.
Claims (4)
1. The method for measuring the extrusion thickness of the cable sheath is characterized by comprising the following steps of: the measuring method for the extrusion thickness of the cable sheath comprises the following measuring steps:
1) Obtaining a measurement basic value, wherein the measurement basic value comprises an actual measurement length value l of a cable core before extrusion molding, a tape width value M, a tape thickness value t, an external diameter value d of the cable core before extrusion molding and a control thickness value t 1 of a cable sheath after extrusion molding;
2) Calculating a value D, wherein the value D is a tape thickness value t which is d+2 times of the outer diameter of the cable core before extrusion molding;
3) Calculating a cable sheath measurement control length value l 1 after extrusion molding of the cable sheath; measuring the actual length value l of the cable sheath after the cable sheath extrusion molding of the cable sheath to be measured 2;
4) Comparing the actual length measured value l 2 of the cable sheath after extrusion molding with the control length measured value l 1 of the cable sheath after extrusion molding, and if the two values are equal or the actual length measured value l 2 of the cable sheath after extrusion molding is in the allowable error value range of the control length measured value l 1 of the cable sheath after extrusion molding, indicating that the thickness size of the cable sheath meets the requirement;
when calculating the value D, according to the formula: d=d+ 2*t, (pi D) 2=l2+M 2, the value D is calculated;
When calculating the cable sheath measurement control length value l 1 after cable sheath extrusion molding, according to the formula: l 1= SQRT((PI()*（d+2*t+2*t1）)2–M2) and calculating the cable sheath measurement control length value l 1 after the cable sheath is extruded.
2. The cable jacket extrusion thickness measurement method of claim 1, wherein: if the actual length value l 2 of the cable sheath after extrusion molding is not equal to the control length value l 1 of the cable sheath after extrusion molding, or the actual length value l 2 of the cable sheath after extrusion molding exceeds the allowable error value range of the control length value l 1 of the cable sheath after extrusion molding, at this time, when l 2 is greater than l 1, the traction speed can be increased or the screw speed of the extruder can be reduced in the actual production process, so that the actual measured value l 2 is controlled in the allowable error value range of the theoretical calculation control value l 1; when l 2 is smaller than l 1, the drawing speed can be reduced or the screw speed of the extruder can be increased in the actual production process, so that the actual measured value l 2 is controlled in the range of the error value allowed by the theoretical calculated control value l 1.
3. The cable jacket extrusion thickness measurement method of claim 1, wherein: SQRT () is an open square root function and PI () is a perimeter rate function value.
4. The cable jacket extrusion thickness measurement method of claim 1, wherein: the actual measured length value l of the cable core before extrusion molding is the measured length corresponding to the upper scale mark and the lower scale mark of the tape after the tape rotates around the cable core before extrusion molding for one circle.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1269743A (en) * | 1960-07-06 | 1961-08-18 | Thomson Houston Comp Francaise | Advanced measuring device, in particular, for measuring the thickness of the coating of a cable |
| DE3311345A1 (en) * | 1983-03-21 | 1984-10-04 | RSM Regel-, Steuer- und Messtechnik GmbH, 4000 Düsseldorf | Process for maintaining constant wall thickness during extrusion (production) of elongated objects of thermoplastics, such as films, pipes, tubes, cable sheaths, sheets and profiles, and measuring and control device for extruders, extrusion pressers or the like for elongated objects |
| JP2012002774A (en) * | 2010-06-21 | 2012-01-05 | Chugoku Electric Power Co Inc:The | Cable length measuring instrument |
| CN202753419U (en) * | 2012-08-03 | 2013-02-27 | 杭州临安光大线缆有限公司 | External diameter monitoring device of jacket extrusion molding production line |
| US8473246B1 (en) * | 2008-11-06 | 2013-06-25 | Southwire Company | Cable measurement device |
| CN104167260A (en) * | 2014-08-06 | 2014-11-26 | 山东省农业机械科学研究院 | Cable extrusion test run technology |
| CN106273307A (en) * | 2016-08-26 | 2017-01-04 | 富通光纤光缆（成都）有限公司 | A kind of cable jacket external diameter method of adjustment and system |
| CN106956419A (en) * | 2017-04-06 | 2017-07-18 | 广州市香港科大霍英东研究院 | A kind of method and system of extruding production line Collaborative Control |
| CN110491603A (en) * | 2019-09-09 | 2019-11-22 | 江苏亨通电力电缆有限公司 | A kind of production technology of insect-pest waterproof power cable |
-
2020
- 2020-12-10 CN CN202011454932.5A patent/CN112556535B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1269743A (en) * | 1960-07-06 | 1961-08-18 | Thomson Houston Comp Francaise | Advanced measuring device, in particular, for measuring the thickness of the coating of a cable |
| DE3311345A1 (en) * | 1983-03-21 | 1984-10-04 | RSM Regel-, Steuer- und Messtechnik GmbH, 4000 Düsseldorf | Process for maintaining constant wall thickness during extrusion (production) of elongated objects of thermoplastics, such as films, pipes, tubes, cable sheaths, sheets and profiles, and measuring and control device for extruders, extrusion pressers or the like for elongated objects |
| US8473246B1 (en) * | 2008-11-06 | 2013-06-25 | Southwire Company | Cable measurement device |
| JP2012002774A (en) * | 2010-06-21 | 2012-01-05 | Chugoku Electric Power Co Inc:The | Cable length measuring instrument |
| CN202753419U (en) * | 2012-08-03 | 2013-02-27 | 杭州临安光大线缆有限公司 | External diameter monitoring device of jacket extrusion molding production line |
| CN104167260A (en) * | 2014-08-06 | 2014-11-26 | 山东省农业机械科学研究院 | Cable extrusion test run technology |
| CN106273307A (en) * | 2016-08-26 | 2017-01-04 | 富通光纤光缆（成都）有限公司 | A kind of cable jacket external diameter method of adjustment and system |
| CN106956419A (en) * | 2017-04-06 | 2017-07-18 | 广州市香港科大霍英东研究院 | A kind of method and system of extruding production line Collaborative Control |
| CN110491603A (en) * | 2019-09-09 | 2019-11-22 | 江苏亨通电力电缆有限公司 | A kind of production technology of insect-pest waterproof power cable |
Non-Patent Citations (1)
| Title |
|---|
| 电缆工业设计中的挤塑模具设计、配模关键环节探讨;李泽琳;;科技视界;20171205(34);全文 * |
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